Spraying mechanism with uniform water outlet and cleaning machine

Abstract

The utility model relates to kitchen and bath household electrical appliances cleaning equipment technical field, concretely is the spray mechanism and cleaning machine of even water outlet. The spray mechanism of even water outlet, including water inlet subassembly, spray subassembly, the water supply support is connected between water inlet subassembly and spray subassembly, and the water supply support is equipped with water inlet channel and the shunt channel communicated with water inlet channel, the water supply channel communicated with shunt channel, multiple water outlets communicated with water supply channel, shunt channel is equipped with multiple, and spray subassembly includes multiple first spray nozzles communicated with water outlet respectively, and the water supply channel is annular or fan ring shape setting. The utility model discloses through setting annular or fan ring shape water supply channel, makes the water flow before entering first spray nozzle even distribution in water supply channel first, and then is distributed to each first spray nozzle through multiple water outlets, effectively avoids the problem that the middle spray pipe pressure is big in traditional structure, and both sides water outlet is weak, to realize each spray nozzle water outlet even consistent, improve overall cleaning efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of kitchen and bathroom appliance cleaning equipment, specifically a spraying mechanism and cleaning machine that provides uniform water output. Background Technology

[0002] Existing cleaning machines are devices that clean items such as plates and bottles by spraying cold or hot water onto them to remove dirt. To improve rinsing efficiency, cleaning machines are equipped with pumps that spray washing water, multiple spray arms, and, if necessary, heaters that generate hot water.

[0003] For example, the spray device of the utensil cleaning and disinfection machine disclosed in Chinese patent document CN204817389U includes a spray pipe and a spray arm. The spray pipe includes a water inlet and three water outlet spray pipes branching out from the water inlet. Part of the water from the spray device will directly enter the first water outlet spray pipe from the water inlet, and the other part of the water will flow out in a straight line to both sides from the first water outlet spray pipe. When the power of the pump spraying the washing water is constant, the pressure of the middle water outlet spray pipe will be greater than the pressure of the water outlet spray pipes on both sides. It is impossible to ensure that the three water outlet spray pipes can spray water evenly. The washing water on the side water outlet spray pipes cannot effectively clean the dirt on some of the items to be cleaned, thereby affecting the cleaning efficiency and the hygiene of the cleaned items.

[0004] To address the above shortcomings, the cleaning machine needs to be improved by enhancing the cleaning effect of the spray mechanism, thereby improving the user experience. Utility Model Content

[0005] Regarding the aforementioned technical problem in existing spray devices where some water enters directly from the inlet into the first outlet spray pipe, and another portion of water is diverted to both sides along a straight line from the first outlet spray pipe, making it impossible to ensure uniform water output from all three outlet spray pipes and affecting cleaning efficiency and the hygiene of the cleaned items, the technical solution adopted by this utility model to solve this technical problem is:

[0006] A uniform water spraying mechanism includes a water inlet assembly and a spraying assembly. A water supply bracket is connected between the water inlet assembly and the spraying assembly. The water supply bracket has a water inlet channel, a diversion channel connected to the water inlet channel, a water supply channel connected to the diversion channel, and multiple water outlets connected to the water supply channel. The diversion channel has multiple sections. The spraying assembly includes multiple first spray elements that are respectively connected to the water outlets. The water supply channel is arranged in a circular or fan-shaped ring.

[0007] Furthermore, in some embodiments of this utility model, the water inlet channel is disposed in the middle of the water supply bracket, the diversion channels are symmetrically arranged, and the first spray element is provided in multiple parts and disposed on one side of the water supply bracket.

[0008] Furthermore, in some embodiments of this utility model, the water supply bracket has an inner end near the center of the water supply bracket and an outer end away from the center of the water supply bracket, the water outlet includes a first water outlet at the inner end and a second water outlet at the outer end, the first spray member includes a first fixed spray arm communicating with the first water outlet and a second fixed spray arm communicating with the second water outlet, the first fixed spray arm is provided in multiple and spaced apart and / or the second fixed spray arm is provided in multiple and spaced apart.

[0009] Furthermore, in some embodiments of this utility model, the first water outlet and / or the second water outlet are provided with a first guide member. The first guide member is provided with a plurality of first blocking ribs that drive the water flow to the side, a first guide opening located between two adjacent first blocking ribs, and a first guide member through hole communicating with the first fixed spray arm or the second fixed spray arm. A limiting member is provided on one side of the first guide member. The limiting member is located on the side away from the first water outlet or the second water outlet. The first spray member includes a movable spray arm communicating with the first guide opening. The movable spray arm is located between the first guide member and the limiting member. The movable spray arm is provided with a plurality of movable spray arm nozzles. At least two of the movable spray arm nozzles are provided with guide surfaces. The guide surfaces are used to guide the water flow to spray out in different directions to drive the movable spray arm to rotate. The diameter of the first guide member through hole is smaller than the diameter of the water outlet.

[0010] Furthermore, in some embodiments of this utility model, the spray assembly includes a second spray member communicating with the water inlet channel. The water inlet channel or the second spray member is provided with a second guide member. The second guide member is provided with a plurality of second blocking ribs that drive the water flow to the side, a second guide opening located between two adjacent second blocking ribs, and a second guide member through hole communicating with the second spray member. The water inlet assembly is provided with a water inlet assembly outlet communicating with the water inlet channel or the second spray member. The diameter of the second guide member through hole is smaller than the diameter of the water inlet assembly outlet, or the minimum diameter of the water inlet channel on the side near the second guide member through hole is smaller than the diameter of the water inlet assembly outlet.

[0011] Furthermore, in some embodiments of this utility model, the diversion channel is provided with a first diversion channel and a second diversion channel. The first diversion channel and the water supply channel form a first intersection point, and the second diversion channel and the water supply channel form a second intersection point. The distance between the outlet on one side of the water supply bracket and the first intersection point is the same as the distance between the outlet on the other side of the water supply bracket and the second intersection point.

[0012] Furthermore, in some embodiments of this utility model, the water supply bracket is provided with reinforcing ribs connected to the diversion channel and / or the water supply channel, and there are multiple reinforcing ribs, with a hollow area between two adjacent reinforcing ribs.

[0013] Furthermore, in some embodiments of this utility model, the water supply bracket is integrally formed, the diversion channel is provided in two symmetrical arrangements, the first spray member is symmetrically arranged and disposed on the upper side of the water supply bracket, the first spray member is arranged in a vertical direction, and the distance between the first water outlet or the second water outlet on one side of the water supply bracket and the first intersection point is the same as the distance between the first water outlet or the second water outlet on the other side of the water supply bracket and the second intersection point.

[0014] Another object of this utility model is to provide a cleaning machine, including a housing, wherein the housing is provided with a spraying mechanism as described above.

[0015] Furthermore, in some embodiments of this utility model, the housing is provided with a shelf located on the upper side of the water supply bracket, a positioning end connected to the water supply bracket and / or the shelf, and the shelf is provided with shelf openings through which the water supply flow and / or spray assembly passes.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention, by setting up a circular or fan-shaped water supply channel, ensures that the water flow is evenly distributed in the water supply channel before entering the first spray element, and then distributed to each first spray element through multiple water outlets. This effectively avoids the problems of high pressure in the middle spray pipe and weak water output on both sides in the traditional structure, thereby achieving uniform water output from each spray element, improving the overall cleaning efficiency and ensuring the hygiene of the cleaned items. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the water supply bracket of this utility model.

[0019] Figure 2 for Figure 1 A sectional view.

[0020] Figure 3 This is a schematic diagram of the spraying mechanism of this utility model.

[0021] Figure 4 This is an exploded view of the spraying mechanism of this utility model.

[0022] Figure 5 for Figure 4 Enlarged view of part A.

[0023] Figure 6 This is a top view of the spraying mechanism of this utility model.

[0024] Figure 7 for Figure 6 BB cross-sectional view and enlarged partial view.

[0025] Figure 8 for Figure 6 CC sectional view and enlarged partial view.

[0026] Figure 9 This is a top view of the cleaning machine of this utility model.

[0027] Figure 10 for Figure 9 DD sectional view and enlarged partial view. Detailed Implementation

[0028] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0031] like Figures 1 to 10 The uniform water output spraying mechanism shown includes a water inlet assembly 1 and a spraying assembly 2. A water supply bracket 3 is connected between the water inlet assembly 1 and the spraying assembly 2. The water supply bracket 3 is provided with a water inlet channel 4, a diversion channel 5 connected to the water inlet channel 4, a water supply channel 6 connected to the diversion channel 5, and multiple water outlets 7 connected to the water supply channel 6. The diversion channel 5 is provided with multiple outlets. The spraying assembly 2 includes multiple first spray elements 21 that are respectively connected to the water outlets 7. The water supply channel 6 is arranged in a circular or fan-shaped ring.

[0032] This invention, by setting up a circular or fan-shaped water supply channel, ensures that the water flow is evenly distributed in the water supply channel before entering the first spray element, and then distributed to each first spray element through multiple water outlets. This effectively avoids the problems of high pressure in the middle spray pipe and weak water output on both sides in the traditional structure, thereby achieving uniform water output from each spray element, improving the overall cleaning efficiency and ensuring the hygiene of the cleaned items.

[0033] In existing technologies, water flow is split from a single nozzle to both sides, with the central nozzle having a short path and high pressure, while the side nozzles have long paths and low pressure. This linear transfer path leads to pressure attenuation and poor cleaning effect. In this invention, after the water flow enters the annular water supply channel from the splitting channel, it flows evenly along the annular path to each outlet, reducing resistance loss before entering each outlet. The water pressure from each first spray element is uniform, and the sprayed water can create a stable impact force on items to be cleaned in different locations, such as the edges of plates and the inside of bottles, avoiding dirt residue caused by insufficient local pressure.

[0034] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, such as Figure 2 As shown, the water supply channel is circular, forming a continuous channel that ensures that the water pressure of each first spray element on the water supply support remains stable.

[0035] Optionally, in some embodiments, the water supply channel is fan-shaped and has multiple sections. In some embodiments, through the diversion of the diversion channel, the water supply channel forms a local area, which can ensure that the water pressure of a single first spray element in this area remains stable compared to the water pressure of a single first spray element in other areas. Of course, in other embodiments, the water supply channel forms a local area, which can ensure that the water pressure of multiple first spray elements in this area remains stable compared to the water pressure of multiple first spray elements in other areas.

[0036] Optionally, in some embodiments, the fan-shaped ring can be a semi-circular ring, or multiple third rings, or multiple quarter rings, and is not limited to the above shapes. In some embodiments, the water supply bracket may be set with a semi-circular ring on one side and two quarter rings on the other side.

[0037] Optionally, the water inlet assembly uses a water pump, which connects the water inlet channel to the annular water supply channel through multiple diversion channels. This avoids the water flow directly impacting the first spray element, allowing the water flow to be rationally distributed in multiple diversion paths, thereby reducing water flow resistance and local pressure drop, and thus reducing energy loss and improving the efficiency of the water pump.

[0038] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, such as Figure 2As shown, there are two diversion channels, which makes the water pressure on both sides of the water supply bracket equal. Furthermore, the setting of two diversion channels reduces the turbulence loss of water flow at the junction and reduces the resistance increased when making right-angle turns, thereby making the water flow more stable and indirectly improving pressure stability.

[0039] Optionally, in some embodiments, the diversion channels may be provided with three, four or five or more, and the multiple diversion channels enable the water flow to be diverted to the overall annular water supply channel, or to multiple fan-shaped annular water supply channels.

[0040] As an extension of this embodiment, four diversion channels can be arranged in a cross shape, and four water outlets can be arranged symmetrically on the water supply channel. The distance from any two adjacent diversion channels to one of the water outlets is equal.

[0041] Optionally, in some embodiments, the water supply bracket is integrally formed with the first spray component, and the water flow is distributed through the diversion channel. The water flow is quickly transferred from the water supply channel to the first spray component for spraying. Its overall structure is compact, which can reduce the number of connecting parts. It occupies little space, which is beneficial to the layout of the internal space of the cleaning machine and facilitates assembly.

[0042] like Figure 1 and Figure 2 The spray mechanism shown has a uniform water output. The water inlet channel 4 is located in the middle of the water supply bracket 3. The diversion channels 5 are symmetrically arranged. The first spray element 21 is provided in multiple parts and is located on one side of the water supply bracket 3.

[0043] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, such as Figure 1 and Figure 2 As shown, the water inlet channel is located in the middle of the water supply support, and the water flow is diverted from the center to the surrounding areas. Compared with edge water inlets, its fluid path is shorter and has fewer bends, which can reduce the overall flow resistance. In addition, the central water inlet channel has a higher flow velocity, making it less prone to scale buildup and extending the maintenance cycle.

[0044] Furthermore, the symmetrical flow distribution channel ensures symmetrical water flow paths on both sides of the spray nozzles. Even if one path is slightly blocked by impurities, the other path can still compensate for the flow through the symmetrical structure, preventing a sudden drop in pressure on one side. The symmetrical layout of the flow distribution channel automatically balances the flow rate during distribution, ensuring consistent flow velocity and further reducing the pressure difference between the outlets. Moreover, the symmetrical flow channel design avoids local eddies caused by abrupt changes in water flow direction, reducing energy loss and improving pump efficiency.

[0045] Optionally, in some embodiments, the first spray element is arranged in a cantilevered configuration perpendicular to the water supply bracket, and multiple first spray elements are simultaneously and centrally arranged on the upper or lower side of the water supply bracket, which can increase the spray density within a limited space.

[0046] Optionally, in some embodiments, symmetrical diversion channels and centralized spray layout can lower the center of gravity of the spray system, which can reduce vibration and noise caused by high-speed water flow impact.

[0047] Optionally, in some embodiments, the symmetrical diversion channel ensures that the water flow impact force is evenly distributed on the inner wall of the water supply support, avoiding cracks or fatigue damage caused by local stress concentration.

[0048] like Figure 1 and Figure 2 The uniform water output spray mechanism shown has an inner end 31 near the center of the water supply support 3 and an outer end 32 away from the center of the water supply support 3. The water outlet 7 includes a first water outlet 71 located at the inner end 31 and a second water outlet 72 located at the outer end 32. The first spray member 21 includes a first fixed spray arm 211 communicating with the first water outlet 71 and a second fixed spray arm 212 communicating with the second water outlet 72. The first fixed spray arm 211 is provided in multiple and spaced apart and / or the second fixed spray arm 212 is provided in multiple and spaced apart.

[0049] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the inner first fixed spray arm is close to the center of the water supply bracket, and the outer second fixed spray arm is set at the edge of the water supply bracket through the outer end. This can make full use of the radial space of the water supply bracket. The spaced first or second fixed spray arms avoid mutual interference of fluids caused by dense arrangement. By reducing turbulence between the first spray elements and reducing fluid resistance, the water output of each first spray element is smoother, thereby reducing the energy consumption of the water pump.

[0050] Optionally, in some embodiments, the inner and outer ends are arranged such that the first fixed spray arm and the second fixed spray arm are misaligned. When the first fixed spray arm and the second fixed spray arm are not on the same straight line, the objects to be cleaned on their upper side can be staggered. By placing more objects to be cleaned, it is beneficial to make full use of the cleaning space.

[0051] In some embodiments, when the first fixed spray arm and the second fixed spray arm are not in a straight line, the spray coverage area is larger, thereby improving the cleaning effect.

[0052] Optionally, in some embodiments, the first fixed spray arm 211 is provided in multiple and spaced apart.

[0053] Optionally, in some embodiments, the second fixed spray arm 212 is provided in multiple and spaced apart.

[0054] Of course, in some embodiments, such as Figure 1As shown, both the first fixed spray arm 211 and the second fixed spray arm 212 are provided in multiples and are arranged at intervals.

[0055] like Figures 3 to 8 The spray mechanism with uniform water output shown includes a first guide member 9 at the first water outlet 71 and / or the second water outlet 72. The first guide member 9 has multiple first blocking ribs 91 that drive the water flow to the side, a first guide opening 93 located between two adjacent first blocking ribs 91, and a first guide through hole 92 communicating with the first fixed spray arm 211 or the second fixed spray arm 212. A limiting member 10 is provided on one side of the first guide member 9, and the limiting member 10 is located away from the first water outlet 71 or the second water outlet 72. On one side of the outlet 72, the first spray member 21 includes a movable spray arm 213 communicating with the first guide opening 93. The movable spray arm 213 is located between the first guide member 9 and the limiting member 10. The movable spray arm 213 is provided with a plurality of movable spray arm nozzles 2131. At least two of the movable spray arm nozzles 2131 are provided with guide surfaces 21311. The guide surfaces 21311 are used to guide the water flow to spray out in different directions to drive the movable spray arm 213 to rotate. The diameter of the through hole 92 of the first guide member is smaller than the diameter of the outlet 7.

[0056] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the multiple first blocking ribs on the first guide member can drive the water flow to the side, avoiding the limitation of the cleaning range caused by the water flow spraying directly vertically upward or downward in one direction. By allowing the water flow to be transferred from the first guide member to the moving spray arm, the moving spray arm uses rotation spraying to increase the coverage area of ​​the spraying mechanism on dishes, bottles and other items to be cleaned, thereby improving the comprehensiveness of cleaning and reducing cleaning dead corners.

[0057] Specifically, the diameter of the through hole of the first guide component is smaller than the diameter of the outlet. When the water flows from the outlet through the through hole of the first guide component, the cross-sectional area of ​​the flow channel becomes smaller, the water flow speed increases, and the pressure also increases accordingly. The high-speed and high-pressure water flow can enhance the spraying force and more effectively remove stains from the items to be cleaned.

[0058] Specifically, such as Figure 7 As shown, the smaller through-hole of the first guide member can play a certain role in rectifying the water flow. Some water flows steadily to the side under the obstruction of the protrusions around the through-hole of the first guide member, and then flows to the moving spray arm through the first guide opening after being blocked by the first blocking rib. The moving spray arm stably receives the water flow from the first guide member, ensuring that the moving spray arm has sufficient water volume and pressure for spraying, and maintaining the consistency of the spraying effect.

[0059] Specifically, the limiting component is located on the side away from the first or second water outlet, which can prevent the moving spray arm from moving or shaking excessively due to the excessive impact force of the water flow during the spraying process. This ensures that the moving spray arm works stably within a certain range, improves the reliability and stability of the spraying mechanism, and avoids collisions or friction between the moving spray arm and other components by limiting the position of the moving spray arm, reducing the wear and damage of components and extending the maintenance cycle of the spraying mechanism.

[0060] Alternatively, by fixing the position of the limiting component or by pressing the limiting component onto the moving spray arm with other accessories, the structure of the moving spray arm located between the first guide component and the limiting component can be made more compact and easier to install. This achieves effective installation and operation of the moving spray arm within a limited space, improves space utilization, and is conducive to the miniaturization design of the cleaning machine.

[0061] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, such as Figure 5 As shown, at least two moving spray arm nozzles are equipped with guide surfaces, which guide the water flow in different directions. When water flows out in different directions, they generate reaction forces in different directions on the moving spray arms. The resultant force of these reaction forces causes the moving spray arms to rotate. The rotation of the moving spray arms allows the nozzles to continuously change the direction of water spray, thereby achieving all-around cleaning of dishes, bottles, and other items, avoiding cleaning dead spots caused by a fixed water spray direction. Because the rotation of the moving spray arms is dynamic and the water spray direction is constantly changing, the cleaning process is more random and comprehensive. Compared with traditional fixed spray methods, it can more effectively remove stains of various shapes and locations, improving the quality and efficiency of cleaning.

[0062] Optionally, in some embodiments, during the startup phase, one guide surface drives the water flow to move to the left side of the moving spray arm, and the other guide surface drives the water flow to move to the right side of the moving spray arm.

[0063] Optionally, in some embodiments, during the startup phase, one guide surface drives the water flow to move towards the front of the moving spray arm, and the other guide surface drives the water flow to move towards the left side of the moving spray arm.

[0064] like Figures 3 to 8The spray mechanism shown has a uniform water output. The spray assembly 2 includes a second spray element 22 connected to the water inlet channel 4. The water inlet channel 4 or the second spray element 22 is provided with a second guide element 11. The second guide element 11 is provided with a plurality of second blocking ribs 111 that drive the water flow to the side, a second guide opening 113 located between two adjacent second blocking ribs 111, and a second guide element through hole 112 connected to the second spray element 22. The water inlet assembly 1 is provided with a water inlet assembly outlet 12 connected to the water inlet channel 4 or the second spray element 22. The diameter of the second guide element through hole 112 is smaller than the diameter of the water inlet assembly outlet 12, or the minimum diameter of the water inlet channel 4 on the side close to the second guide element through hole 112 is smaller than the diameter of the water inlet assembly outlet 12.

[0065] Specifically, the multiple second baffle ribs on the second guide member can drive the water flow to the side, preventing the water flow from going straight up and down or concentrated in a single direction. Some water can move to the water inlet channel through the second guide opening under the obstruction of the second baffle ribs.

[0066] Specifically, when the diameter of the through hole of the second guide component is smaller than the diameter of the outlet of the water inlet assembly, or when the minimum diameter of the water inlet channel near the through hole of the second guide component is smaller than the diameter of the outlet of the water inlet assembly, the cross-sectional area of ​​the flow channel decreases as the water flows through these narrow channels. This significantly increases the water flow velocity and pressure, allowing the high-speed, high-pressure water flow to more effectively impact the stains on the surface of the item being cleaned, thus enhancing the cleaning power.

[0067] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, such as Figure 5 and Figure 8 As shown, the second guide member and the second spray member are integrated. After the water from the outlet of the water inlet component enters through the second guide member, some of the water is transferred to the water inlet channel through the second guide opening, and some water enters the second spray member through the through hole of the second guide member.

[0068] Optionally, in some embodiments, the second spray element is integrally formed with the water supply bracket, and the second guide element is disposed in the water inlet channel. Water from the outlet of the water inlet component enters the second guide element from the water inlet channel. Part of the water is transferred to the connection area between the water inlet channel and the diversion channel through the second guide opening, and part of the water enters the connection area between the second spray element and the water inlet channel through the through hole of the second guide element. The minimum aperture of the water inlet channel near the through hole of the second guide element is smaller than the aperture of the water outlet of the water inlet component. When the water flows through this connection area, the cross-sectional area of ​​the flow channel becomes smaller and the water flow velocity increases.

[0069] Specifically, the water flow is guided and controlled by the second guide component, so that the water flows to the diversion channel in a more stable manner, avoiding the loosening of components caused by direct water flow impact, reducing the damage to components such as the spray assembly and water inlet channel caused by excessive water flow impact force, and improving the structural stability and reliability of the spray mechanism.

[0070] In addition, a stable water flow reduces vibration of the spray mechanism during operation, thereby lowering the noise level of the cleaning machine. This provides users with a quieter operating environment, thus enhancing the user experience.

[0071] Alternatively, in some embodiments, such as Figure 4 and Figure 5 As shown, the height of the second spray element is higher than that of the first spray element. The first spray element sprays water upwards, while the second spray element sprays water upwards and can also spray water to the side, thereby increasing the spray coverage area.

[0072] like Figure 1 and Figure 2 The spray mechanism shown provides uniform water output. The diversion channel 5 is provided with a first diversion channel 51 and a second diversion channel 52. The first diversion channel 51 and the water supply channel 6 form a first intersection point 61, and the second diversion channel 52 and the water supply channel 6 form a second intersection point 62. The distance between the water outlet 7 on one side of the water supply bracket 3 and the first intersection point 61 is the same as the distance between the water outlet 7 on the other side of the water supply bracket 3 and the second intersection point 62.

[0073] Specifically, when water flows from the diversion channel into the supply channel, the distance between the outlet on one side of the supply support and the first junction point is the same as the distance between the outlet on the other side and the second junction point. Therefore, the water flow has similar resistance characteristics along its transmission path from the diversion channel to the outlet. Under the same pressure conditions, when fluid flows in pipes with similar resistance, the flow distribution is more uniform. This ensures that the water flowing from the first and second diversion channels has a relatively balanced flow distribution when it reaches each outlet, avoiding the problem of excessively high or low flow rates at certain outlets due to path differences.

[0074] Specifically, setting the distances consistently ensures that the water flow passes through pipes with similar bends and lengths during transmission, thereby reducing pressure loss differences caused by varying paths. This results in more stable water pressure for each spray element, guaranteeing consistent spray intensity and coverage. Excessive pressure loss could cause some first spray elements to spray weakly, while others might spray excessively, affecting the cleaning effect.

[0075] Furthermore, the symmetrical arrangement of the first and second diversion channels ensures that the water supply support is subjected to more even stress when bearing water pressure. The relatively balanced stress distribution on each component reduces the risk of structural damage caused by localized stress concentration. This helps improve the overall stability and reliability of the sprinkler system, extends its service life, and reduces the frequency of maintenance and replacement.

[0076] like Figures 1 to 2 The spray mechanism shown has a uniform water output. The water supply bracket 3 is provided with reinforcing ribs 8 that are connected to the diversion channel 5 and / or the water supply channel 6. There are multiple reinforcing ribs 8, and a hollow area 81 is provided between two adjacent reinforcing ribs 8.

[0077] Specifically, the reinforcing ribs effectively disperse the stress generated by the water flow impact by increasing the wall thickness of the diversion channel and the water supply channel or by providing local support, thus preventing the water supply support from deforming or cracking due to long-term high-pressure water flow impact.

[0078] Additionally, the high-speed water flow during sprinkler operation can cause vibrations in the water supply support. Reinforcing ribs can suppress the vibration amplitude, reducing the risk of loosening of connectors or nozzle misalignment due to vibration, thereby improving sprinkler stability.

[0079] Furthermore, the hollow area between adjacent reinforcing ribs significantly reduces the weight of the water supply bracket while ensuring strength, and facilitates installation and transportation. The presence of the hollow area prevents the reinforcing ribs from completely blocking the water flow path, allowing the water to flow back and collect after being sprayed upwards, reducing the risk of scale and impurity deposition and extending the maintenance-free cycle of the cleaning machine.

[0080] Alternatively, in some embodiments, the hollowed-out area can also make it easier for users to hold the water supply bracket, thereby improving the installation and disassembly efficiency.

[0081] Optionally, in some embodiments, the reinforcing ribs are symmetrically distributed along the diversion channel and the water supply channel, which can further balance the pressure distribution of the water flow on the left and right sides, avoid insufficient pressure on one side due to structural asymmetry, and ensure the stability of the coordinated operation of multiple spray arms.

[0082] like Figure 1 and Figure 2 The uniform water output spraying mechanism shown has a water supply bracket 3 integrally formed, two symmetrically arranged diversion channels 5, and a first spraying element 21 symmetrically arranged on the upper side of the water supply bracket 3. The first spraying element 21 is arranged vertically, and the distance between the first water outlet 71 or the second water outlet 72 on one side of the water supply bracket 3 and the first intersection point 61 is the same as the distance between the first water outlet 71 or the second water outlet 72 on the other side of the water supply bracket 3 and the second intersection point 62.

[0083] Specifically, the one-piece molding of the water supply bracket avoids the seams or welding points caused by splicing multiple parts, which can eliminate the risk of water leakage caused by loosening or aging of the connection, and is especially suitable for high-pressure water flow environments.

[0084] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, such as Figure 2 As shown, the distance between the first water outlet on the left side of the water supply bracket and the first junction point is equal to the distance between the second water outlet on the right side of the water supply bracket and the second junction point. The distances between the two second water outlets on the left side of the water supply bracket and the first junction point are equal to the distances between the two second water outlets on the right side of the water supply bracket and the second junction point.

[0085] Furthermore, the integrated structure, through overall stress distribution, enhances the support's resistance to torsion and vibration under high-pressure water flow, ensuring that the spray arm angle remains unchanged during long-term use and maintaining a stable cleaning coverage area. Two symmetrically arranged diversion channels ensure that the path length and bend angle of the water flow from the inlet to the spray elements on both sides are completely consistent, significantly reducing uneven pressure loss caused by differences in flow channels and avoiding insufficient flow on one side of the spray arm.

[0086] Optionally, in some embodiments, the first spray element is symmetrically arranged on the upper side of the water supply bracket, forming a symmetrical cleaning coverage area in conjunction with the vertical spray angle. The vertically arranged spray element can generate a water flow perpendicular to the surface of the item to be cleaned, which is particularly suitable for removing stubborn stains from the bottom of plates and dishes and the upright parts of baby bottles, thereby improving cleaning efficiency.

[0087] In addition, the symmetrical layout of the water supply bracket and water flow channel ensures a uniform distribution of vibration frequency during equipment operation, reducing local resonance. This not only lowers the noise level and provides a quieter operating environment for users, but also reduces wear on the motor and bearings, extending the equipment's service life.

[0088] like Figure 9 and Figure 10 The cleaning machine shown includes a housing 100, which is provided with a spraying mechanism as described above.

[0089] Alternatively, in some embodiments, the cleaning machine can be applied in the field of dishwashers.

[0090] Alternatively, in some embodiments, the cleaning machine can be applied in the field of baby bottle cleaning machines.

[0091] This invention, by setting up a circular or fan-shaped water supply channel, ensures that the water flow is evenly distributed in the water supply channel before entering the first spray element, and then distributed to each first spray element through multiple water outlets. This effectively avoids the problem of high pressure in the middle spray pipe and weak water output on both sides in the traditional structure, thereby achieving uniform water output from each first spray element and improving the overall cleaning efficiency.

[0092] After the water flows from the diversion channel into the annular water supply channel, it can flow evenly to each outlet along the annular path, reducing resistance loss before entering each outlet. The water pressure of each first spray element is uniform, and the sprayed water can form a stable impact force on the objects to be cleaned in different locations, such as the edge of the plate or the inside of the bottle, avoiding dirt residue caused by insufficient local pressure.

[0093] Optionally, in some embodiments, the spraying mechanism has functions such as uniform water output, multi-stage spraying, and rotating spraying with a moving spray arm, which can perform all-round, multi-angle, and no-dead-angle cleaning of the objects to be cleaned in the cleaning chamber, effectively improving cleaning efficiency and cleaning quality.

[0094] Optionally, in some embodiments, the spraying mechanism adopts an integrated water supply bracket, symmetrical diversion channels, and reinforcing rib design, which makes the water flow distribution more uniform, the structural strength higher, and the pressure and deformation resistance stronger, thereby improving the stability and service life of the cleaning machine.

[0095] like Figure 9 and Figure 10 The cleaning machine shown has a housing 100 with a shelf 101 located on the upper side of the water supply bracket 3 and a positioning end 102 connected to the water supply bracket 3 and / or the shelf 101. The shelf 101 has a shelf cutout area 1011 through which the water supply flow and / or the spray assembly 2 passes.

[0096] Optionally, in some embodiments, the shelf can, along with other accessories, restrict the movement of the items to be cleaned in the vertical or horizontal direction. During the operation of the cleaning machine, the high-speed water flow generated by the spray assembly will impact the items. The shelf can withstand these impacts and limit the items to be cleaned, thereby reducing collisions between items. The stable support of the shelf can greatly reduce the risk of damage to the items to be cleaned during the cleaning process.

[0097] Optionally, in some embodiments, the shelf is provided with a limiting structure that can restrict the movement of the object to be cleaned in the vertical or horizontal direction.

[0098] Specifically, the shelf is located above the water supply support, separating the items to be cleaned from the spray assembly. This provides a stable platform for dishes, bottles, and other items, reducing collisions and interference with the spray assembly. The spray assembly can then operate more stably, maintaining its normal rotation speed and spray angle, thus ensuring consistent and stable spraying results. This also helps extend the lifespan of the spray assembly and reduce equipment maintenance costs.

[0099] Specifically, the shelf is provided with shelf openings through which water flow and the spray assembly pass. The design of these openings allows the water flow generated by the spray assembly to smoothly pass through the shelf and directly act on the items to be cleaned. This avoids uneven water distribution caused by the shelf obstructing the water flow, ensuring that the entire cleaning area receives sufficient water rinsing, thus improving cleaning uniformity and efficiency. In some embodiments, the cleaning water can flow back to the water inlet assembly through the shelf openings.

[0100] Specifically, the positioning end connects to the water supply bracket and / or shelf, enabling precise positioning and fixation of the shelf. This ensures the stability of the shelf's position within the housing, guaranteeing that each item placed for cleaning is in the correct position and receives even cleaning, preventing inadequate cleaning of upper items due to shelf shaking or displacement.

[0101] Optionally, in some embodiments, the shelf is connected to the upper side of the limiting member, thereby restricting the vertical movement of the limiting member and allowing the moving spray arm to operate within a certain range.

[0102] Optionally, in some embodiments, the shelf opening allows the vertically arranged first fixed spray arm, second fixed spray arm, and second spray element to pass through, and further restricts the left and right swaying of the first fixed spray arm, second fixed spray arm, and second spray element.

[0103] Example 1

[0104] like Figures 1 to 10 The uniform water spraying mechanism shown includes a water inlet assembly 1 and a spraying assembly 2. A water supply bracket 3 connects the water inlet assembly 1 and the spraying assembly 2. The water supply bracket 3 has a water inlet channel 4, a diversion channel 5 communicating with the water inlet channel 4, a water supply channel 6 communicating with the diversion channel 5, and multiple water outlets 7 communicating with the water supply channel 6. The diversion channel 5 has multiple components. The spraying assembly 2 includes multiple first spray elements 21, each communicating with one of the water outlets 7. The water supply channel 6 is arranged in a circular shape. The water inlet assembly 1 uses a water pump. There are two diversion channels 5. The water supply bracket 3 and the first spray elements 21 are integrally formed.

[0105] This invention, by setting up a circular water supply channel 6, ensures that the water flow is evenly distributed in the water supply channel 6 before entering the first spray element 21, and then distributed to each first spray element 21 through multiple water outlets 7. This effectively avoids the problem of high pressure in the middle spray pipe and weak water output on both sides in the traditional structure, thereby achieving uniform water output from each first spray element 21 and improving the overall cleaning efficiency.

[0106] Example 2

[0107] The difference between Example 2 and Example 1 is as follows:

[0108] The water supply channel 6 consists of two sets of semi-circular rings, which are respectively set on the left and right sides of the water supply support.

[0109] Example 3

[0110] The difference between Example 3 and Example 1 is as follows:

[0111] The water supply channel 6 is fan-shaped and has multiple sections. Through the diversion of the diversion channel 5, the water supply channel 6 forms a local area, which can ensure that the water pressure of a single first spray element 21 in this area remains stable with the water pressure of a single first spray element 21 in other areas. Alternatively, the water supply channel 6 forms a local area, which can ensure that the water pressure of multiple first spray elements 21 in this area remains stable with the water pressure of multiple first spray elements 21 in other areas.

[0112] The diversion channel 5 can be configured with three, four, or more than five depending on the number of water supply channels 6. Multiple diversion channels 5 enable water flow to be diverted into the fan-shaped annular water supply channel 6.

[0113] Example 4

[0114] Based on Example 1, Example 4 also has the following implementation method:

[0115] like Figure 1 and Figure 2 The spray mechanism shown has a uniform water output. The water inlet channel 4 is located in the middle of the water supply bracket 3. The diversion channels 5 are symmetrically arranged. The first spray element 21 is provided in multiple parts and is located on one side of the water supply bracket 3.

[0116] The first spray element 21 is arranged in a cantilevered layout perpendicular to the water supply bracket 3. Multiple first spray elements 21 are simultaneously concentrated on the upper side of the water supply bracket 3, which can increase the spray density in a limited space.

[0117] Example 5

[0118] Example 5, based on Example 1, also has the following implementation method:

[0119] like Figure 1 and Figure 2 The uniform water output spraying mechanism shown has an inner end 31 near the center of the water supply support 3 and an outer end 32 away from the center of the water supply support 3. The water outlet 7 includes a first water outlet 71 located at the inner end 31 and a second water outlet 72 located at the outer end 32. The first spraying component 21 includes a first fixed spray arm 211 communicating with the first water outlet 71 and a second fixed spray arm 212 communicating with the second water outlet 72. The first fixed spray arm 211 is provided in multiple and spaced apart, and the second fixed spray arm 212 is provided in multiple and spaced apart.

[0120] Example 6

[0121] Example 6, based on Example 5, also has the following implementation method:

[0122] like Figures 3 to 8 The spray mechanism shown provides uniform water output. The first water outlet 71 and the second water outlet 72 are equipped with first guide members 9. Each first guide member 9 has multiple first blocking ribs 91 that drive the water flow laterally, a first guide opening 93 located between two adjacent first blocking ribs 91, and a first guide through hole 92 communicating with the first fixed spray arm 211 or the second fixed spray arm 212. A limiting member 10 is provided on one side of the first guide member 9, and the limiting member 10 is located away from the first water outlet 71 or the second water outlet. On one side of 72, the first spray member 21 includes a movable spray arm 213 communicating with the first flow guide opening 93. The movable spray arm 213 is located between the first flow guide member 9 and the limiting member 10. The movable spray arm 213 is provided with a plurality of movable spray arm nozzles 2131, and at least two of the movable spray arm nozzles 2131 are provided with flow guide surfaces 21311. The flow guide surfaces 21311 are used to guide the water flow to spray out in different directions to drive the movable spray arm 213 to rotate. The diameter of the through hole 92 of the first flow guide member is smaller than the diameter of the outlet 7. Each first outlet 71 and second outlet 72 is provided with a corresponding movable spray arm 213.

[0123] Example 7

[0124] Example 7, based on Example 6, also has the following implementation method:

[0125] like Figures 3 to 8The spray mechanism shown has a uniform water output. The spray assembly 2 includes a second spray element 22 connected to the water inlet channel 4. The water inlet channel 4 or the second spray element 22 is provided with a second guide element 11. The second guide element 11 is provided with a plurality of second blocking ribs 111 that drive the water flow to the side, a second guide opening 113 located between two adjacent second blocking ribs 111, and a second guide element through hole 112 connected to the second spray element 22. The water inlet assembly 1 is provided with a water inlet assembly outlet 12 connected to the water inlet channel 4 or the second spray element 22. The diameter of the second guide element through hole 112 is smaller than the diameter of the water inlet assembly outlet 12, or the minimum diameter of the water inlet channel 4 on the side close to the second guide element through hole 112 is smaller than the diameter of the water inlet assembly outlet 12.

[0126] The second guide member 11 and the second spray member 22 are integrated. After the water from the outlet 12 of the water inlet component enters through the second guide member 11, some of the water is transferred to the water inlet channel 4 through the second guide opening 113, and some of the water enters the second spray member 22 through the through hole 112 of the second guide member.

[0127] The height of the second spray element 22 is higher than that of the first spray element 21. The first spray element 21 sprays water upwards, while the second spray element 22 sprays water upwards and can also spray water to the side, thereby increasing the spray coverage area.

[0128] Example 8

[0129] The difference between Example 8 and Example 7 is as follows:

[0130] The second spray element 22 is integrally formed with the water supply bracket 3. The second guide element 11 is disposed in the water inlet channel 4. Water from the outlet 12 of the water inlet component enters the second guide element 11 from the water inlet channel 4. Some water is transferred to the connection area between the water inlet channel 4 and the diversion channel 5 through the second guide opening 113, and some water enters the connection area between the second spray element 22 and the water inlet channel 4 through the through hole 112 of the second guide element. The minimum aperture of the water inlet channel 4 near the through hole 112 of the second guide element is smaller than the aperture of the outlet 12 of the water inlet component. When the water flows through this connection area, the cross-sectional area of ​​the flow channel becomes smaller, and the water flow velocity increases.

[0131] Example 9

[0132] Example 9, based on Example 1, also has the following implementation method:

[0133] like Figure 1 and Figure 2The spray mechanism shown provides uniform water output. The diversion channel 5 is provided with a first diversion channel 51 and a second diversion channel 52. The first diversion channel 51 and the water supply channel 6 form a first intersection point 61, and the second diversion channel 52 and the water supply channel 6 form a second intersection point 62. The distance between the water outlet 7 on one side of the water supply bracket 3 and the first intersection point 61 is the same as the distance between the water outlet 7 on the other side of the water supply bracket 3 and the second intersection point 62.

[0134] Optionally, in some embodiments, the distance between each first water outlet 71 on the left side of the water supply bracket 3 and the first intersection point 61 is equal to the distance between each first water outlet 71 on the right side of the water supply bracket 3 and the second intersection point 62, and the distance between each second water outlet 72 on the left side of the water supply bracket 3 and the first intersection point 61 is equal to the distance between each second water outlet 72 on the right side of the water supply bracket 3 and the second intersection point 62.

[0135] Optionally, in some other embodiments, the distance between each first water outlet 71 on the left side of the water supply bracket 3 and the first intersection point 61 is equal to the distance between each second water outlet 72 on the right side of the water supply bracket 3 and the second intersection point 62, and the distance between each second water outlet 72 on the left side of the water supply bracket 3 and the first intersection point 61 is equal to the distance between each first water outlet 71 on the right side of the water supply bracket 3 and the second intersection point 62.

[0136] Example 10

[0137] Example 10, based on Example 1, also has the following implementation method:

[0138] like Figures 1 to 2 The spray mechanism shown has a uniform water output. The water supply bracket 3 is provided with reinforcing ribs 8 connected to the water supply channel 6. There are multiple reinforcing ribs 8, and a hollow area 81 is provided between two adjacent reinforcing ribs 8.

[0139] Example 11

[0140] Example 11, based on Example 9, also has the following implementation method:

[0141] like Figure 1 and Figure 2The uniform water output spraying mechanism shown has a water supply bracket 3 integrally formed, two symmetrically arranged diversion channels 5, and a first spraying element 21 symmetrically arranged on the upper side of the water supply bracket 3. The first spraying element 21 is arranged vertically, and the distance between the first water outlet 71 or the second water outlet 72 on one side of the water supply bracket 3 and the first intersection point 61 is the same as the distance between the first water outlet 71 or the second water outlet 72 on the other side of the water supply bracket 3 and the second intersection point 62.

[0142] Example 12

[0143] Example 12, based on the above examples, also has the following implementation method:

[0144] like Figure 9 and Figure 10 The cleaning machine shown includes a housing 100, which is equipped with the spraying mechanism described above. This cleaning machine is used in the field of baby bottle cleaning machines.

[0145] like Figure 9 and Figure 10 The cleaning machine shown has a housing 100 with a shelf 101 located on the upper side of the water supply bracket 3 and a positioning end 102 connected to the water supply bracket 3. The shelf 101 has a shelf cutout area 1011 through which the water supply flow and the spray assembly 2 pass.

[0146] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A spraying mechanism for uniform water output, comprising a water inlet assembly (1) and a spraying assembly (2), characterized in that: A water supply bracket (3) is connected between the water inlet assembly (1) and the spray assembly (2). The water supply bracket (3) is provided with a water inlet channel (4), a diversion channel (5) connected to the water inlet channel (4), a water supply channel (6) connected to the diversion channel (5), and multiple water outlets (7) connected to the water supply channel (6). The diversion channel (5) is provided with multiple channels. The spray assembly (2) includes multiple first spray elements (21) that are respectively connected to the water outlets (7). The water supply channel (6) is arranged in a circular or fan-shaped ring.

2. The spray mechanism for uniform water output according to claim 1, characterized in that: The water inlet channel (4) is located in the middle of the water supply bracket (3), the diversion channels (5) are symmetrically arranged, and the first spray element (21) is provided in multiple ways and is located on one side of the water supply bracket (3).

3. The spray mechanism for uniform water output according to claim 1, characterized in that: The water supply bracket (3) has an inner end (31) near the center of the water supply bracket (3) and an outer end (32) away from the center of the water supply bracket (3). The water outlet (7) includes a first water outlet (71) located at the inner end (31) and a second water outlet (72) located at the outer end (32). The first spray member (21) includes a first fixed spray arm (211) communicating with the first water outlet (71) and a second fixed spray arm (212) communicating with the second water outlet (72). The first fixed spray arm (211) is provided in multiple and spaced apart and / or the second fixed spray arm (212) is provided in multiple and spaced apart.

4. The spray mechanism for uniform water output according to claim 3, characterized in that: The first outlet (71) and / or the second outlet (72) are provided with a first guide member (9). The first guide member (9) is provided with a plurality of first blocking ribs (91) that drive the water flow to the side, a first guide opening (93) located between two adjacent first blocking ribs (91), and a first guide member through hole (92) communicating with the first fixed spray arm (211) or the second fixed spray arm (212). A limiting member (10) is provided on one side of the first guide member (9). The limiting member (10) is located away from the first outlet (71) or the second outlet (72). On the side, the first spray member (21) includes a movable spray arm (213) communicating with the first flow guide opening (93). The movable spray arm (213) is located between the first flow guide (9) and the limiting member (10). The movable spray arm (213) is provided with a plurality of movable spray arm nozzles (2131). At least two of the movable spray arm nozzles (2131) are provided with flow guide surfaces (21311). The flow guide surfaces (21311) are used to guide the water flow to spray out in different directions to drive the movable spray arm (213) to rotate. The aperture of the through hole (92) of the first flow guide is smaller than the aperture of the water outlet (7).

5. The spray mechanism for uniform water output according to claim 1, characterized in that: The spray assembly (2) includes a second spray element (22) connected to the water inlet channel (4). The water inlet channel (4) or the second spray element (22) is provided with a second guide element (11). The second guide element (11) is provided with a plurality of second blocking ribs (111) that drive the water flow to the side, a second guide opening (113) located between two adjacent second blocking ribs (111), and a second guide element through hole (112) connected to the second spray element (22). The water inlet assembly (1) is provided with a water inlet assembly outlet (12) connected to the water inlet channel (4) or the second spray element (22). The diameter of the second guide element through hole (112) is smaller than the diameter of the water inlet assembly outlet (12), or the minimum diameter of the water inlet channel (4) on the side close to the second guide element through hole (112) is smaller than the diameter of the water inlet assembly outlet (12).

6. The spray mechanism for uniform water output according to claim 3, characterized in that: The diversion channel (5) is provided with a first diversion channel (51) and a second diversion channel (52). The first diversion channel (51) and the water supply channel (6) form a first intersection point (61), and the second diversion channel (52) and the water supply channel (6) form a second intersection point (62). The distance between the outlet (7) on one side of the water supply bracket (3) and the first intersection point (61) is the same as the distance between the outlet (7) on the other side of the water supply bracket (3) and the second intersection point (62).

7. The spray mechanism for uniform water output according to claim 1, characterized in that: The water supply bracket (3) is provided with reinforcing ribs (8) that are connected to the diversion channel (5) and / or the water supply channel (6). There are multiple reinforcing ribs (8), and a hollow area (81) is provided between two adjacent reinforcing ribs (8).

8. The spray mechanism for uniform water output according to claim 6, characterized in that: The water supply bracket (3) is integrally formed. The diversion channel (5) is provided in two symmetrical arrangements. The first spray element (21) is symmetrically arranged and located on the upper side of the water supply bracket (3). The first spray element (21) is arranged in a vertical direction. The distance between the first water outlet (71) or the second water outlet (72) on one side of the water supply bracket (3) and the first intersection point (61) is the same as the distance between the first water outlet (71) or the second water outlet (72) on the other side of the water supply bracket (3) and the second intersection point (62).

9. A cleaning machine, including a housing (100), characterized in that: The housing (100) is provided with a spraying mechanism as described in any one of claims 1-8.

10. The cleaning machine according to claim 9, characterized in that: The housing (100) is provided with a shelf (101) located on the upper side of the water supply bracket (3) and a positioning end (102) connected to the water supply bracket (3) and / or the shelf (101). The shelf (101) is provided with a shelf cutout area (1011) through which the water supply flow and / or the spray assembly (2) passes.

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