Spray arm mechanism and dishwasher
By using the first deflector plate and the second deflector plate in the waterway structure of the dishwasher spray arm to form a non-right-angle transition, the water pressure and flow rate loss caused by the right angle of the waterway structure of the shower arm in the prior art is solved, and the washing efficiency and strength of the waterway structure are improved.
Patent Information
- Application Number
- CN202421482099.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The waterway structure of the existing dishwasher spray arms is mostly right angles at corners, which leads to loss of water pressure and flow, affects the cleaning effect and increases water consumption. At the same time, the strength of right angle corners is poor, easy to damage, and increases maintenance costs.
The first flow guide plate and the second flow guide plate are used to form a non-right-angle transition, such as a curved surface, at the first water inlet and the first water outlet, thereby reducing the loss of water pressure and flow rate and increasing the water outlet pressure of the spray arm.
Through the non-right-angle transition structure, the loss of water pressure and flow rate is reduced, the water outlet pressure of the spray arm is improved, the washing efficiency is improved, the strength of the waterway structure is enhanced, and the maintenance cost is reduced.
Smart Images
Figure CN222737830U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dishwashers, in particular to a spray arm mechanism and a dishwasher. Background Art
[0002] In existing dishwasher equipment, the water channel structure of the spray arm is mostly right-angled at the corners. This water channel structure will have certain defects in specific applications. On the one hand, when water flows through the right-angle corner, its water pressure and flow rate will be greatly lost, resulting in low water pressure at the water outlet, which will lead to poor cleaning effect of the dishwasher or high water consumption; on the other hand, the right-angle corner has poor strength and is easy to be damaged, which increases maintenance costs. Utility Model Content
[0003] In view of the technical problem that the spray mechanism of a traditional dishwasher has usage defects, the utility model provides a spray arm mechanism and a dishwasher, which utilize a first guide plate and a second guide plate to form a non-right-angle transition such as a curved surface at a first water inlet and a first water outlet, thereby reducing the loss of water pressure and flow, increasing the water outlet pressure of the spray arm, and improving the washing efficiency.
[0004] The technical solution provided by the utility model is: a spray arm mechanism, comprising a linked spray arm and a multi-fork spray arm, a first cavity is arranged in the linked spray arm, and a second cavity is arranged in the multi-fork spray arm; a first water inlet is arranged at the bottom of the linked spray arm, a first water outlet is arranged at one end of the linked spray arm, and a second water inlet is arranged on the multi-fork spray arm, the first water outlet is connected with the first cavity, and the first cavity and the second cavity are connected through the first water outlet and the second water inlet; a first guide plate is fixedly arranged near the first water inlet in the linked spray arm, a first guide surface is arranged on the first guide plate, a second guide plate is arranged near the first water outlet in the linked spray arm, and a second guide surface is arranged on the second guide plate.
[0005] Optionally, the second cavity includes a plurality of bifurcated cavities, each of the bifurcated cavities in the multi-fork spray arm is provided with a third guide plate near the second water inlet, and the third guide plate is provided with a first guide profile along the extension direction of each bifurcated cavity.
[0006] Optionally, the first water inlet is located in the middle of the linked spray arm, the first water outlet is located at one end of the linked spray arm, the first guide plate is located on the side of the first water inlet away from the first water outlet, and the first guide surface is located on the side of the first guide plate facing the first water outlet.
[0007] Optionally, the second guide plate is located on a side of the first water outlet away from the first water inlet, and the second guide surface is located on a side of the second guide plate facing the first water inlet.
[0008] Optionally, a second water outlet is provided at the other end of the linked spray arm, the second water outlet is communicated with the first cavity, and a third guide surface is provided on the side of the first guide plate facing the second water outlet.
[0009] Optionally, a fixing part is fixedly provided at the first water inlet on the linked spray arm, and a guide part is provided on the fixing part. The fixing part passes through the first water inlet so that the guide part is located in the second cavity, and the guide part gradually converges from the connection with the fixing part toward the first water outlet so that a second guide profile is formed on its outer surface.
[0010] Optionally, the linked spray arm includes a first shell and a second shell, the first shell is fixedly connected to the second shell, and the fixing piece is fixed to the second shell; the multi-fork spray arm includes a third shell and a fourth shell, the third shell is fixedly connected to the fourth shell, the second water inlet is located on the third shell, the fourth shell is provided with a first connecting hole, and the guide piece is provided with a second connecting hole; it also includes a buckle, a protruding connecting piece is provided on the buckle, the buckle is plug-fitted with the first connecting hole, and the protruding connecting piece is plug-fitted with the second connecting hole.
[0011] A dishwasher comprises the above-mentioned spray arm mechanism.
[0012] Beneficial Effects
[0013] The technical solution provided by the utility model has the following beneficial effects compared with the prior art: in view of the technical problem that the spray mechanism of the traditional dishwasher has usage defects, the utility model uses the first guide plate and the second guide plate to form a non-right-angle transition such as a curved surface at the first water inlet and the first water outlet, thereby reducing the loss of water pressure and flow, increasing the water outlet pressure of the spray arm, and improving the washing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic structural diagram of the spray arm mechanism proposed in an embodiment of the utility model.
[0015] Figure 2 It is a schematic side view of the cross-sectional structure of the linkage spray arm proposed in the embodiment of the utility model.
[0016] Figure 3 This is a top view schematic diagram of the cross-sectional structure of the linkage spray arm proposed in an embodiment of the utility model.
[0017] Figure 4 This is a top view schematic diagram of the cross-sectional structure of the multi-pronged spray arm proposed in an embodiment of the utility model. DETAILED DESCRIPTION
[0018] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
[0019] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.
[0020] Example 1
[0021] Combined with Figure 1-4The present embodiment proposes a spray arm mechanism, including a linked spray arm 10 and a multi-fork spray arm 20, wherein a first cavity 100 is arranged in the linked spray arm 10, and a second cavity 200 is arranged in the multi-fork spray arm 20; a first water inlet 101 is arranged at the bottom of the linked spray arm 10, a first water outlet 102 is arranged at one end of the linked spray arm 10, and a second water inlet 201 is arranged on the multi-fork spray arm 20, the first water outlet 102 is communicated with the first cavity 100, and the first cavity 100 and the second cavity 200 are communicated through the first water outlet 102 and the second water inlet 201.
[0022] A first guide plate 111 is fixedly provided near the first water inlet 101 in the linkage spray arm 10 , and a first guide surface 121 is provided on the first guide plate 111 ; a second guide plate 112 is provided near the first water outlet 102 in the linkage spray arm 10 , and a second guide surface 122 is provided on the second guide plate 112 .
[0023] In order to solve the technical problem that the spray mechanism of a traditional dishwasher has usage defects, a spray arm mechanism of the present embodiment utilizes a first guide plate 111 and a second guide plate 112 to form a non-right-angle transition such as a curved surface at the first water inlet 101 and the first water outlet 102, thereby reducing the loss of water pressure and flow, increasing the water outlet pressure of the spray arm, and improving washing efficiency.
[0024] In this embodiment, the spray arm mechanism includes a linkage spray arm 10 and a multi-pronged spray arm 20. The linkage spray arm 10 is provided with a first cavity 100 for water to flow through, and the multi-pronged spray arm 20 is provided with a second cavity 200 for water to flow through. For the spray arm mechanism of this embodiment, water flows into the first cavity 100 from the first water inlet 101 of the linkage spray arm 10, and flows into the multi-pronged spray arm 20 through the first water outlet 102 of the linkage spray arm 10 and the second water inlet 201 of the multi-pronged spray arm 20.
[0025] This embodiment mainly improves the structure of the first water inlet 101 of the linkage spray arm 10 and the structure of the first water outlet 102 of the linkage spray arm 10 to reduce flow and pressure loss. Among them, a first guide plate 111 is fixedly arranged near the first water inlet 101 in the linkage spray arm 10, and a first guide surface 121 is arranged on the first guide plate 111. The first guide surface 121 is preferably a concave spherical surface. After the water flows in from the first water inlet 101, the first guide plate 111 can guide the water to flow along the first guide surface 121 to avoid the existence of a right angle in the flow path at the first water inlet 101, thereby reducing the water pressure drop to a certain extent and reducing the flow loss. Furthermore, in the process of water flowing from the first water outlet 102 into the second water inlet 201, the second guide surface 122 on the second guide plate 112 can also guide the flow of water. The second guide surface 122 can also preferably be a concave spherical surface to avoid the existence of right angles in the flow path at the second water inlet 201, thereby reducing the water pressure drop to a certain extent and reducing the flow loss.
[0026] In the attached Figure 1-3 In an exemplary embodiment, the first water inlet 101 is located in the middle of the linkage spray arm 10, the first water outlet 102 is located at one end of the linkage spray arm 10, the first guide plate 111 is located on a side of the first water inlet 101 away from the first water outlet 102, and the first guide surface 121 is located on a side of the first guide plate 111 facing the first water outlet 102. Further, the second guide plate 112 is located on a side of the first water outlet 102 away from the first water inlet 101, and the second guide surface 122 is located on a side of the second guide plate 112 facing the first water inlet 101. In this embodiment, the water inlet of the linked spray arm 10 is located in the middle. Regarding the direction of water flow from the first water inlet 101 to the second water inlet 201, this embodiment further designs the orientation of the first guide plate 111 and the second guide plate 112 to conform to the flow path of the water flow and better guide the water flow along the first guide surface 121 and the second guide surface 122 to avoid right angles in the water flow path, thereby reducing the loss of water pressure and flow.
[0027] On the basis of the above embodiment, further improvements can be made, in which a second water outlet 103 is provided at the other end of the linkage spray arm 10, the second water outlet 103 is communicated with the first cavity 100, and a third guide surface 123 is provided on the side of the first guide plate 111 facing the second water outlet 103. In this embodiment, the first water inlet 101 is provided in the middle, that is, the second water outlet 103 is provided at the other end of the linkage spray arm 10 relative to the first water outlet 102, so as to directly realize the spraying function through the linkage spray arm 10. In order to further reduce the pressure and flow loss when the water flows to the second water outlet 103, the third guide surface 123 is provided on the side of the first guide plate 111 facing the second water outlet 103 in this embodiment, and the third guide surface 123 can be a spherical curved surface convex toward the second water outlet 103, or can be a conical or pyramidal profile convex toward the second water outlet 103.
[0028] Combined with Figure 3 In one embodiment, the multi-fork spray arm 20 is further improved, and its second cavity 200 includes a plurality of bifurcated cavities 300. A third guide plate 301 is provided near the second water inlet 201 in each bifurcated cavity 300 in the multi-fork spray arm 20, and a first guide profile 311 is provided on the third guide plate 301 along the extension direction of each bifurcated cavity 300. When the multi-fork spray arm 20 is working, since the water flow needs to flow from the second water inlet 201 to each bifurcated cavity 300, the third guide plate 301 is provided near the second water inlet 201 in each bifurcated cavity 300 in this embodiment, and the first guide profile 311 is used to guide the water flow, so as to minimize the formation of turbulent water flow at the second water inlet 201, so that the water flow can flow into each bifurcated cavity 300 more efficiently.
[0029] When water flows in from the second water inlet 201, it flows from bottom to top, so it will inevitably impact the top inner wall of the second cavity 200, and flow and pressure loss will inevitably occur in this process. Figure 1 and 2 In one embodiment, a fixing member 131 is fixedly provided at the first water inlet 101 of the linkage spray arm 10, and a flow guide member 132 is provided on the fixing member 131. The fixing member 131 penetrates the first water inlet 101 so that the flow guide member 132 is located in the second cavity 200. The flow guide member 132 gradually converges from the connection with the fixing member 131 toward the first water outlet 102, so that its outer surface forms a second flow guide profile. In this embodiment, the flow guide member 132 can form a cone, a pyramid or a second flow guide profile through its gradually converging structure. Figure 1The outer wall surfaces of these geometric bodies naturally form a second guide surface. When water flows in from the second water inlet 201, it can flow along the second guide surface, thereby avoiding direct impact on the top inner wall of the second cavity 200, reducing flow and pressure loss.
[0030] On the basis of the above-mentioned embodiment, the arrangement of the fixing member 131 and the guide member 132 can also be further used for the assembly of the spray arm mechanism. Figure 1 The linkage spray arm 10 includes a first shell 11 and a second shell 12, the first shell 11 is fixedly connected to the second shell 12, and the fixing member 131 is fixed to the second shell 12; the multi-fork spray arm 20 includes a third shell 21 and a fourth shell 22, the third shell 21 is fixedly connected to the fourth shell 22, the second water inlet 201 is located on the third shell 21, the fourth shell 22 is provided with a first connecting hole 31, and the flow guide 132 is provided with a second connecting hole 32; it also includes a buckle 33, the buckle 33 is provided with a protruding connecting member 34, the buckle 33 is plugged and matched with the first connecting hole 31, and the protruding connecting member 34 is plugged and matched with the second connecting hole 32. Therefore, the assembly of the spray arm mechanism can be conveniently realized by plugging and matching the buckle 33 with the flow guide 132.
[0031] Example 2
[0032] Combined with Figure 1-4 This embodiment proposes a dishwasher, including the spray arm mechanism recorded in the technical solution of Example 1.
[0033] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creative design without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.
Claims
1. A spray arm mechanism, characterized in that: It comprises a linkage spray arm and a multi-fork spray arm, wherein a first cavity is arranged in the linkage spray arm, and a second cavity is arranged in the multi-fork spray arm; A first water inlet is provided at the bottom of the linkage spray arm, a first water outlet is provided at one end of the linkage spray arm, a second water inlet is provided on the multi-fork spray arm, the first water outlet is communicated with the first cavity, and the first cavity and the second cavity are communicated through the first water outlet and the second water inlet; A first guide plate is fixedly arranged in the linkage spray arm near the first water inlet, a first guide surface is arranged on the first guide plate, and a second guide plate is arranged in the linkage spray arm near the first water outlet, a second guide surface is arranged on the second guide plate.
2. A spray arm mechanism according to claim 1, characterized in that: The second cavity includes a plurality of bifurcated cavities, and a third guide plate is provided near the second water inlet in each of the bifurcated cavities in the multi-fork spray arm, and a first guide profile is provided on the third guide plate along the extension direction of each bifurcated cavity.
3. A spray arm mechanism according to claim 1, characterized in that: The first water inlet is located in the middle of the linked spray arm, the first water outlet is located at one end of the linked spray arm, the first guide plate is located on the side of the first water inlet away from the first water outlet, and the first guide surface is located on the side of the first guide plate facing the first water outlet.
4. A spray arm mechanism according to claim 3, characterized in that: The second guide plate is located on a side of the first water outlet away from the first water inlet, and the second guide surface is located on a side of the second guide plate facing the first water inlet.
5. A spray arm mechanism according to claim 4, characterized in that: The other end of the linkage spray arm is provided with a second water outlet, the second water outlet is communicated with the first cavity, and a third guide surface is provided on the side of the first guide plate facing the second water outlet.
6. A spray arm mechanism according to claim 1, characterized in that: A fixing part is fixedly provided at the first water inlet on the linked spray arm, and a flow guide part is provided on the fixing part. The fixing part passes through the first water inlet so that the flow guide part is located in the second cavity. The flow guide part gradually converges from the connection with the fixing part toward the first water outlet so that a second flow guide profile is formed on its outer surface.
7. A spray arm mechanism according to claim 6, characterized in that: The linkage spray arm comprises a first shell and a second shell, the first shell is fixedly connected to the second shell, and the fixing member is fixed to the second shell; the multi-fork spray arm comprises a third shell and a fourth shell, the third shell is fixedly connected to the fourth shell, the second water inlet is located on the third shell, the fourth shell is provided with a first connecting hole, and the guide member is provided with a second connecting hole; It also includes a buckle, on which a protruding connecting piece is provided, the buckle is plug-fitted with the first connecting hole, and the protruding connecting piece is plug-fitted with the second connecting hole.
8. A dishwasher, characterized in that: It comprises a spray arm mechanism as described in any one of claims 1-7.