Dish-washing machine suspension spraying assembly for demonstration and dish-washing machine demonstration prop

Abstract

The invention belongs to the technical field of demonstration props, and discloses a dishwasher suspension spraying assembly for demonstration and a dishwasher demonstration props, and the dishwasher suspension spraying assembly for demonstration comprises a spraying arm model which is provided with a through hole penetrating through the upper and lower sides of the spraying arm model; the suspension flow guide piece is connected with the spraying arm model through a connecting piece and is arranged right above the through hole; the water diversion chamber is provided with a water outlet which is positioned below the through hole and is arranged upwards; water flow sprayed out of the water outlet penetrates through the through opening to act on the suspension flow guide piece, and the suspension flow guide piece drives the spraying arm model to ascend and rotate under the impact effect of the water flow. By displaying the suspension principle and state of the suspension type spraying arm, consumers can visually perceive and know the suspension characteristic of the spraying arm, popularization and promotion of the dish washing machine with the suspension type spraying arm are facilitated, and then micro-plastic residues and pollution generated by a traditional dish washing machine are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of demonstration props, and in particular relates to a dishwasher suspension spray assembly and a dishwasher demonstration prop for demonstration. Background Art

[0002] The spray arm of a dishwasher is used to spray the tableware in the dishwasher chamber from a large area and multiple angles. Most of them are fixed on a shaft and rotated by the rotation of the shaft. The spray arm is fixed or clamped on a fixed base or water channel component at the bottom of the dishwasher chamber. When it rotates, it contacts and rubs against the fixed base or water channel component, causing wear, which affects the rotation speed and service life of the spray arm, and will produce serious microplastic pollution in the washing water. The microplastics are plastic particles with a diameter of less than 5 mm. The residue on the tableware will seriously affect the health of users who use the dishwasher, and cause microplastic pollution in the drainage of the urban pipe network.

[0003] Therefore, some current dishwashers are equipped with suspended spray arms that use water jets to generate lift and do not directly contact the fixed base or water channel components, which effectively solves the problems of spray arm wear and microplastics. However, they have problems such as low suspension height and suspension characteristics that are not easily perceived by users and potential consumers. As a result, the advantages of suspended spray arms, such as being more stable and not producing microplastics, and the problems of traditional spray arms, such as wear and microplastics, are difficult for consumers to understand and resonate with, which in turn makes it difficult to popularize dishwashers equipped with suspended spray arms.

[0004] Especially now that microplastics have been found in human blood clots, how to make consumers better understand the characteristics of the suspended spray arm of the dishwasher, and then promote dishwashers equipped with suspended spray arms to reduce the residue and pollution of microplastics is a technical problem that needs to be solved.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a dishwasher suspended spray assembly and a dishwasher demonstration prop for demonstration. By demonstrating the suspension principle and state of the suspended spray arm, consumers can have an intuitive perception of the suspension characteristics of the spray arm, which is conducive to the popularization and promotion of dishwashers with suspended spray arms, thereby reducing the microplastic residues and pollution generated by traditional dishwashers.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] The present invention provides a dishwasher suspension spray assembly for demonstration, comprising:

[0009] The spray arm model is provided with openings penetrating the upper and lower sides thereof;

[0010] A suspended flow guide, connected to the spray arm model via a connecting piece, and arranged just above the through opening;

[0011] A water diversion chamber, having a water outlet located below the through port and arranged upward;

[0012] The water flow sprayed from the water outlet passes through the through opening and acts on the suspended flow guide member, and the suspended flow guide member drives the spray arm model to rise and rotate under the impact of the water flow.

[0013] The present invention demonstrates the suspension principle and state of the suspended spray arm through a water diversion chamber, a suspended guide piece and a spray arm model, allowing consumers to have an intuitive perception of the suspension characteristics of the spray arm, which is conducive to the popularization and promotion of dishwashers equipped with suspended spray arms, thereby reducing the microplastic residues and pollution generated by traditional dishwashers.

[0014] A further solution of the present invention is that: the suspended flow guide member includes at least two flow guide portions, and the flow guide portions are bent and extended outward from a position close to the center of the lower surface of the suspended flow guide member;

[0015] The water flow is sprayed to the center of the lower surface and flows along the guide portion, generating a torque that drives the spray arm model to rotate.

[0016] A further solution of the present invention is that at least two guide portions have one end close to the center of the lower surface of the suspended guide member located on the same circumference with the center as the center, and the bending direction of each guide portion is the same clockwise or the same counterclockwise.

[0017] A further solution of the present invention is that the lower surface of the suspended flow guide member is an upwardly concave curved surface, and the highest point of the curved surface is the center.

[0018] In the above solution, the rotation torque is generated by the guide part, so that the suspended guide member can drive the spray arm model to rise and rotate stably.

[0019] A further solution of the present invention is that the mass of the spray arm model is greater than the mass of the suspended flow guide member, and the distance between the spray arm model and the suspended flow guide member in the vertical direction is greater than 20 centimeters.

[0020] In the above solution, the center of gravity of the spray arm model, the suspended flow guide and the connecting member as a whole is located at a lower position, so that the suspended flow guide is more stable under the impact of water flow.

[0021] A further solution of the present invention is that the water diversion chamber has a water flow channel inside, the water flows into the water flow channel in a horizontal direction, flows along the water flow channel, and finally sprays out of the water outlet upward in a vertical direction.

[0022] In the above scheme, the water flow that impacts the suspended flow guide member is ensured to be vertically upward through the water diversion chamber, thereby ensuring that the suspended flow guide member is more stable under the impact of the water flow.

[0023] A further solution of the present invention is that the water diversion chamber has at least two water flow channels, a water inlet cavity and a water outlet cavity, the water inlet cavity is a circular, horizontally arranged cavity, the inlet end of the water flow channel is located at the periphery of the water inlet cavity, extends along the tangent direction of the periphery of the water inlet cavity, and then bends and extends upward, and the outlet ends of each water flow channel are upwardly connected to the same water outlet channel;

[0024] The water outlet channel is vertically extended, and the upper end of the water outlet channel is provided with the water outlet.

[0025] In the above scheme, the water flow can be pressurized by the curved water flow channel, so that the force of the water flow impacting the suspended guide member is larger and more stable.

[0026] A further solution of the present invention is: a flow stabilizing grid extending along the axis of the water outlet channel is protruded on the inner wall thereof, the lower end of the flow stabilizing grid extends between the water outlet ends of two adjacent water flow channels, and the cross-sectional area of ​​the flow stabilizing grid increases first and then decreases from bottom to top.

[0027] In the above scheme, the flow separation effect and hydraulic loss of water are reduced by the flow stabilizing grid, and the rotation of water flow in the vertical direction is reduced, so that the water outflow in the vertical direction of the water diversion chamber is more stable.

[0028] The present invention also provides a dishwasher demonstration prop, wherein the dishwasher demonstration prop is provided with the dishwasher suspension spray assembly for demonstration.

[0029] A further solution of the present invention is: a dishwasher demonstration prop, further comprising a transparent chamber shell, wherein the water diversion chamber is arranged inside the transparent chamber shell;

[0030] A placement frame is arranged on the top of the transparent chamber shell for supporting the spray arm model.

[0031] In the above solution, the transparent chamber shell allows consumers to see the internal structure of the dishwasher demonstration prop more intuitively.

[0032] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0033] 1. The suspension principle and state of the suspended spray arm are demonstrated through the water diversion chamber, suspended guide piece and spray arm model, so that consumers can have an intuitive understanding of the suspension characteristics of the spray arm, which is conducive to the popularization and promotion of dishwashers equipped with suspended spray arms, thereby reducing the microplastic residues and pollution generated by traditional dishwashers;

[0034] 2. The mass of the spray arm model is greater than the mass of the suspended flow guide, the vertical distance between the spray arm model and the suspended flow guide is greater than 20 cm, and the center of gravity of the spray arm model, the suspended flow guide and the connecting piece is located at a lower position, so that the suspended flow guide is more stable under the impact of water flow;

[0035] 3. Through the transparent chamber shell, consumers can see the internal structure of the dishwasher demonstration props more intuitively.

[0036] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0038] Figure 1 is a schematic diagram of a suspended spray assembly of a dishwasher for demonstration of the present invention;

[0039] Figure 2 It is a schematic diagram of the structure of the suspended flow guide member of the present invention;

[0040] Figure 3 It is a schematic cross-sectional structural diagram of the suspended flow guide member of the present invention;

[0041] Figure 4 It is a schematic structural diagram of the water diversion chamber component of the present invention;

[0042] Figure 5 It is a schematic cross-sectional structural diagram of the water diversion chamber component of the present invention;

[0043] Figure 6 It is a schematic diagram of the cross-sectional structure of the bottom water inlet cavity of the water diversion chamber of the present invention;

[0044] Figure 7 It is a structural schematic diagram of a dishwasher demonstration prop of the present invention with a protective frame removed;

[0045] Figure 8 It is a structural schematic diagram of a dishwasher demonstration prop of the present invention;

[0046] Fig. 9 It is a schematic diagram of a partial bottom wall structure of a dishwasher demonstration prop of the present invention;

[0047] Fig.10 The invention discloses a structural schematic diagram of a dishwasher demonstration prop in which a water inlet chamber is provided with an impeller.

[0048] In the figure: 1. water diversion chamber; 11. second shell; 12. water outlet channel; 13. first shell; 141. expansion section; 142. tapered section; 143. vertical section; 151. first water flow channel; 152. second water flow channel; 153. third water flow channel; 16. base; 2. spray arm model; 3. connector; 4. suspended guide member; 41. connecting part; 411. socket; 42. guide part; 5. placement rack; 51. first bracket; 52. second bracket; 53. connecting bracket; 54. limiting bracket; 6. connecting bracket; 7. transparent chamber shell; 71. protective frame; 72. impeller; 73. water pump; 74. drain outlet.

[0049] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0051] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0052] In the description of the present invention, it should be noted that, 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] like Figures 1 to 10As shown, the present invention provides a dishwasher suspended spray assembly and a dishwasher demonstration prop for demonstration. By demonstrating the suspension principle and suspension state of the suspended spray arm, consumers can have an intuitive perception of the suspension characteristics of the spray arm, which is conducive to the popularization and promotion of dishwashers with suspended spray arms, thereby reducing the microplastic residues and pollution generated by traditional dishwashers.

[0054] Embodiment 1

[0055] like Figures 1 to 6 As shown, this embodiment provides a suspended spray assembly of a dishwasher for demonstration, comprising: a spray arm model 2, provided with a through opening penetrating the upper and lower sides thereof; a suspended flow guide 4, connected to the spray arm model 2 via a connecting member 3, and arranged just above the through opening; a water induction chamber 1, having a water outlet located below the through opening and arranged upward; the water flow sprayed from the water outlet passes through the through opening and acts on the suspended flow guide 4, and the suspended flow guide 4 drives the spray arm model 2 to rise and rotate under the impact of the water flow.

[0056] like Figure 1 As shown, in a specific application of the present embodiment, the spray arm model 2 is placed on a placement rack 5, the lower portion of the placement rack 5 is a hollow structure, and the side has a limiting structure, so that when the spray arm model 2 is placed on the placement rack 5, the suspended guide member 4 connected thereto is located directly above the water outlet of the water diversion chamber 1.

[0057] Specifically, Figure 1 As shown, the spray arm model 2 is a general dishwasher spray arm shape model, preferably a wider spray arm shape similar to a parallelogram, so that it has a larger assumed spray area. More specifically, the two sides of the spray arm model 2 are connected by an arc, so that when it rotates on the placement rack 5, the resistance generated by contact with the placement rack 5 is small.

[0058] Specifically, the cross-sectional area of ​​the through opening is larger than the cross-sectional area of ​​the lower surface of the suspended flow guide 4 , and more specifically, the diameter of the through opening is larger than 6 cm.

[0059] Therefore, by demonstrating the suspension principle and state of the suspended spray arm through the water diversion chamber 1, the suspended guide member 4 and the spray arm model 2, consumers can have an intuitive perception of the suspension characteristics of the spray arm, which is conducive to the popularization and promotion of dishwashers equipped with suspended spray arms, thereby reducing the microplastic residues and pollution generated by traditional dishwashers.

[0060] In this embodiment, the suspended guide member 4 includes at least two guide portions 42, and the guide portions 42 are bent and extended outward from a position close to the center of the lower surface of the suspended guide member 4; the water flow is sprayed to the center of the lower surface and flows along the guide portions 42, generating a torque that drives the spray arm model 2 to rotate.

[0061] In this embodiment, at least two guide portions 42 have one end close to the center of the lower surface of the suspended guide member 4 located on the same circumference with the center as the center, and the bending direction of each guide portion 42 is the same clockwise or counterclockwise.

[0062] In this embodiment, the lower surface of the suspended flow guide member 4 is an upwardly concave curved surface, and the highest point of the curved surface is the center.

[0063] Specifically, Figure 2 and Figure 3 As shown, the upper part of the suspended flow guide 4 has a bullet-shaped shell, and the lower part has a connecting part 41. The lower surface of the connecting part 41 is a curved surface that is concave upward, and the highest point of the curved surface is the center. At least four of the flow guides 42 are located on the same circumference with the center as the center, and the other end of each flow guide 42 is located on another circumference with the same center as the above circumference and a larger radius. The bending direction of each flow guide 42 is the same clockwise or counterclockwise. In detail, the bending direction of each flow guide 42 is the convex direction of its C-shaped setting. When each flow guide 42 is convex in the clockwise direction, the water flow hits the flow guide 42, causing the suspended flow guide 4 to rotate clockwise; when each flow guide 42 is convex in the counterclockwise direction, the water flow hits the flow guide 42, causing the suspended flow guide 4 to rotate counterclockwise. In detail, the suspended flow guide member 4 is provided with 16 flow guide portions 42, and the protruding direction of the C-shaped arrangement, the connecting line of one end and the connecting line of the other end can all form a circle with the center as the center.

[0064] Specifically, Figure 2 and Figure 3 As shown, the ratio of the bottom opening diameter L of the suspended guide member 4 to the recess height R is 10:3 to 2:1, so as to ensure that the water flow does not spray over a large range and affect the stability of the mechanism.

[0065] Specifically, Figure 2 and Figure 3 As shown, the guide portion 42 is a turning rib, and the distance between its two ends is less than half of the bottom opening diameter L of the suspended guide member 4, and the guide portion 42 does not coincide with the position where the water flow impacts the suspended guide member 4, that is, the end of the guide portion 42 close to the water flow impact does not coincide with the water outlet of the water diversion chamber 1 in the vertical direction. Therefore, it can be avoided that the guide portion 42 is too close to the inside, and the water flow directly hits the guide portion 42 to cause unstable force, affecting the stability of suspension; and it can be avoided that the guide portion 42 is too close to the outside, and the water flow is cut by the guide portion 42 when leaving the suspended guide member 4, forming a water column, which falls on the spray arm model 2 and causes the spray arm model 2 to tilt, affecting the stability of suspension.

[0066] Therefore, the rotational torque generated by the guide portion 42 enables the suspended guide member 4 to drive the spray arm model 2 to stably rise and rotate.

[0067] In this embodiment, Figure 1 As shown, the mass of the spray arm model 2 is greater than the mass of the suspended flow guide 4, and the distance H between the spray arm model 2 and the suspended flow guide 4 in the vertical direction is greater than 20 centimeters.

[0068] Specifically, Figure 1 As shown, the connecting member 3 is a rod body, which passes through the socket 411 of the bottom connecting part 41 of the suspended flow guide member 4, and is fixedly connected to the four sides of the opening of the spray arm model 2, so that the spray arm model 2 can drag the suspended flow guide member 4 downward from the four sockets 411 to stabilize the suspended flow guide member 4. In detail, the center of gravity of the spray arm model 2, the suspended flow guide member 4 and the connecting member 3 as a whole is at the center of the spray arm model 2. When the suspended flow guide member 4 is subjected to an unstable water flow, the center of gravity slightly deviates from the water column impacted by the water flow, but when the water flow is stable, the deviated center of gravity automatically falls back to the water column to correct the deviation of the spray arm model 2.

[0069] The center of gravity of the entirety of the spray arm model 2, the suspended flow guide member 4 and the connecting member 3 is located at a lower position, so that the suspended flow guide member 4 is more stable under the impact of water flow.

[0070] In this embodiment, Figures 4 to 6 As shown, the water diversion chamber 1 has a water flow channel inside, and the water flows into the water flow channel in a horizontal direction, flows along the water flow channel, and finally sprays out of the water outlet upward in a vertical direction.

[0071] The water diversion chamber 1 ensures that the water flow that impacts the suspended flow guide member 4 is vertically upward, thereby ensuring that the suspended flow guide member 4 is more stable under the impact of the water flow.

[0072] In this embodiment, Figures 4 to 6 As shown, the water diversion chamber 1 has at least two water flow channels, a water inlet chamber and a water outlet channel 12. The water inlet chamber is a circular, horizontally arranged cavity. The inlet end of the water flow channel is located at the outer periphery of the water inlet chamber, extends along the tangent direction of the outer periphery of the water inlet chamber, and then bends and extends upward. The outlet ends of each water flow channel are upwardly connected to the same water outlet channel 12; the water outlet channel 12 is vertically extended, and the upper end of the water outlet channel 12 has the water outlet.

[0073] In detail, according to Bernoulli's principle, one of the basic principles of fluid mechanics, that is, when the fluid flows while ignoring the viscosity loss, the sum of the pressure potential energy, kinetic energy and potential energy of any two points on the streamline remains unchanged, therefore, in the water diversion chamber 1, due to the curved setting of the water flow channel, the flow direction of the water flow changes, and the flow velocity of the water flow is reduced, so that the kinetic energy of the water flow is converted into pressure potential energy, thereby making the water flow rise to a higher height. Therefore, through the curved setting of the water flow channel, the water flow can be pressurized, so that the force of the water flow impacting the suspended guide member 4 is larger and more stable.

[0074] In this embodiment, Figure 5 As shown, a flow stabilizing grid extending along the axis of the water outlet channel 12 is protruded on the inner wall thereof, and the lower end of the flow stabilizing grid extends between the water outlet ends of two adjacent water flow channels. The cross-sectional area of ​​the flow stabilizing grid increases first and then decreases from bottom to top.

[0075] Specifically, Figures 4 to 6 As shown, the water diversion chamber 1 includes a first water flow channel 151, a second water flow channel 152, a third water flow channel 153, a water inlet chamber and a water outlet channel 12. After the first water flow channel 151, the second water flow channel 152 and the third water flow channel 153 are tangentially connected to the water inlet chamber in the circumferential direction, they bend and extend upward until they are inserted into the water outlet channel 12. The first water flow channel 151, the second water flow channel 152 and the third water flow channel 153 are symmetrically distributed along the central axis of the water diversion chamber 1 to make the jet water flow of the water diversion chamber 1 more stable. More specifically, the flow stabilizing grid includes an expansion section 141, a tapered section 142 and a vertical section 143, and the expansion section 141 is connected to the first water flow channel 151, the second water flow channel 152 and the third water flow channel 153, and is used to reduce the rotation of the water flow passing through the first water flow channel 151, the second water flow channel 152 and the third water flow channel 153, so as to make the water flow more stable. The tapered section 142 makes the expansion section 141 curved inwardly to connect to the vertical section 143, and the vertical section 143 is connected to the vertical end of the water outlet channel 12, so as to reduce the flow separation effect of the water flow on the side wall of the tapered section 142, thereby reducing the hydraulic loss caused. In detail, the flow separation effect, also called boundary layer separation, refers to the phenomenon that the fluid flows slower and slower under the dual effects of the wall friction force and the reverse pressure difference force, until it stops or even flows back, so that the mainstream is squeezed away from the wall surface. By setting the expansion section 141 and the tapered section 142 with curved surfaces, the rotation of the water flow can be reduced and the water flow can be prevented from flowing back on its wall surface, thereby reducing the hydraulic loss of the water flow.

[0076] Therefore, the flow separation effect and hydraulic loss of water are reduced by the flow stabilizing grid, and the rotation of water flow in the vertical direction is reduced, so that the water outflow in the vertical direction of the water diversion chamber 1 is more stable.

[0077] Specifically, Figure 1 and 4 As shown, the water diversion chamber 1 further comprises a first shell 13 and a base 16. The first shell 13 is sleeved on the first water flow channel 151, the second water flow channel 152, the third water flow channel 153 and the outside of the water inlet cavity. The base 16 is arranged at the bottom end of the water inlet cavity.

[0078] In this embodiment, Figures 1 to 6 As shown, the working process of the spray assembly of the dishwasher is as follows: the water flows through the impeller 72 or the water pump 73 into the water inlet cavity of the water diversion chamber 1, and the water flows evenly through the first water flow channel 151, the second water flow channel 152 and the third water flow channel 153, and rotates along the water flow channel to convert part of its kinetic energy into pressure potential energy, thereby making the water flow rise to a higher height;

[0079] When the water flows through the flow stabilizing grid, it is guided to flow in the vertical direction, and the flow separation phenomenon is reduced in the expansion section 141, thereby reducing the resistance of the water flow;

[0080] The water flow sprayed from the water diversion chamber 1 passes through the opening of the spray arm model 2 to the lower surface of the suspended flow guide 4, disperses at the center of the flow guide 42, and impacts the flow guide 42 along the lower surface, so that the suspended flow guide 4 drives the spray arm model 2 to rotate. At the same time, since the mass of the spray arm model 2 is greater than the mass of the suspended flow guide 4, the distance between the spray arm model 2 and the suspended flow guide 4 in the vertical direction is greater than 20 cm, so that the center of gravity of the whole including the spray arm model 2 and the suspended flow guide 4 is low, and when its suspended position slightly deviates from the position of the spray water flow, it can automatically fall back and correct the deviation;

[0081] The water flows to the edge of the lower surface of the suspension guide member 4 and continues to fall downward and passes through the through opening again, so that the water flow will not affect the suspension of the spray arm model 2.

[0082] In this embodiment, the suspension principle and state of the suspended spray arm are demonstrated through the water diversion chamber 1, the suspended guide member 4 and the spray arm model 2, so that consumers can have an intuitive perception of the suspension characteristics of the spray arm, which is conducive to the popularization and promotion of dishwashers equipped with suspended spray arms, thereby reducing the microplastic residues and pollution generated by traditional dishwashers; the mass of the spray arm model 2 is greater than the mass of the suspended guide member 4, and the vertical distance between the spray arm model 2 and the suspended guide member 4 is greater than 20 cm. The overall center of gravity of the spray arm model 2, the suspended guide member 4 and the connecting member 3 is located at a lower position, making the suspended guide member 4 more stable under the impact of water flow.

[0083] Embodiment 2

[0084] like Figures 1 to 10As shown, this embodiment provides a dishwasher demonstration prop, characterized in that the dishwasher demonstration prop is provided with the dishwasher suspension spray assembly for demonstration described in the first embodiment.

[0085] In this embodiment, a dishwasher demonstration prop further includes: a transparent chamber shell 7, the water diversion chamber 1 is arranged inside the transparent chamber shell 7; a placement rack 5 is arranged on the top of the transparent chamber shell 7 to support the spray arm model 2. The water diversion chamber 1 is arranged inside the transparent chamber shell 7, and a placement rack 5 is arranged on the top, and the spray arm model 2 is placed on the placement rack 5. The placement rack 5 limits the spray arm model 2 so that the suspended flow guide 4 connected to the spray arm model 2 is located directly above the water outlet of the water diversion chamber 1. Specifically, the transparent chamber shell 7 is preferably a dishwasher liner made of transparent material.

[0086] Therefore, through the transparent chamber shell 7, consumers can see the internal structure of the dishwasher demonstration prop more intuitively.

[0087] In this embodiment, the water diversion chamber 1 further includes a second outer shell 11 sleeved on the outside of the first outer shell 13 , so that the water diversion chamber 1 is more stably fixed to the bottom of the transparent chamber shell 7 .

[0088] like Figure 7 As shown, the dishwasher demonstration prop also includes a protective frame 71, which is connected to the opening of the transparent chamber shell 7 and does not contact the spray arm model 2 during the suspension process. It is used to protect the spray arm model 2. The vertical height of the protective frame 71 is 1 meter to 1.6 meters.

[0089] like Figure 8 As shown, specifically, the horizontal bottom surface of the placement rack 5 is a large-area hollow bracket, the bracket is circular, and its center coincides with the water flow sprayed from the water diversion chamber 1. The outer periphery of the placement rack 5 extends vertically upward to form an annular limit bracket 54. When the spray arm model 2 is placed on the bracket, its two ends contact the inner wall of the limit bracket 54 to form a limit. The placement rack 5 also includes a first bracket 51, a second bracket 52 and a connecting bracket 53. The first bracket 51 and the second bracket 52 are annular, and the center coincides with the water flow sprayed from the water diversion chamber 1. The diameter of the first bracket 51 is larger than that of the second bracket 52, and the two ends of the connecting bracket 53 are respectively fixed to the limit bracket 54 and the second bracket 52.

[0090] like Fig. 9 As shown, the bottom of the transparent chamber shell 7 is also provided with a drain port 74 for draining the water in the transparent chamber shell 7. Specifically, the drain port 74 is preferably a universal drain port 74 of a dishwasher.

[0091] like Fig. 9 and 10As shown, the base 16 of the water diversion chamber 1 is inserted into the bottom of the transparent chamber shell 7, and the middle of the water inlet chamber of the water diversion chamber 1 is directly inserted into the impeller 72. The bottom of the impeller 72 is connected to the water pump 73, so that the water supply of the water pump 73 can flow into the water inlet chamber through the pumping of the impeller 72.

[0092] In this embodiment, Figures 1 to 10 As shown, the working process of the spray assembly of the dishwasher is as follows: the spray arm model 2 is placed on the placement rack 5, and the suspension guide member 4 is accurately aligned with the water outlet of the water diversion chamber 1 through the limit of the placement rack 5;

[0093] The water flows through the water pump 73 and the impeller 72 into the water inlet chamber of the water diversion chamber 1, and the water flows evenly through the first water flow channel 151, the second water flow channel 152 and the third water flow channel 153, and rotates along the water flow channel to convert part of its kinetic energy into pressure potential energy, thereby making the water flow rise higher. When the water flows through the flow stabilizing grid, it is guided to flow in the vertical direction, and the flow separation phenomenon is reduced in its expansion section 141, thereby reducing the resistance of the water flow;

[0094] The water flow impacts the suspended flow guide 4, so that the suspended flow guide 4 drives the spray arm model 2 to rise and rotate. The mass of the spray arm model 2 is greater than the mass of the suspended flow guide 4, and the vertical distance between the spray arm model 2 and the suspended flow guide 4 is greater than 20 cm, so that the center of gravity of the whole including the spray arm model 2 and the suspended flow guide 4 is low, and when its suspended position slightly deviates from the position of the spray water flow, it can automatically fall back and correct the deviation. The spray arm model 2 is protected by the protective frame 71, and the consumer can intuitively see the suspension principle and suspension state of the spray arm model 2 through the transparent chamber shell 7;

[0095] The water flows to the edge of the lower surface of the suspended guide member 4 and continues to fall downward, passes through the through opening again, flows to the bottom of the transparent chamber shell 7, and is discharged through the drain port 74, so that the water flow will not affect the suspension of the spray arm model 2, and can be reused through the pipeline set at the drain port 74.

[0096] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A dishwasher suspension spray assembly for demonstration, characterized in that: include: The spray arm model is provided with openings penetrating the upper and lower sides thereof; A suspended flow guide, connected to the spray arm model via a connecting piece, and arranged just above the through opening; A water diversion chamber, having a water outlet located below the through port and arranged upward; The water flow sprayed from the water outlet passes through the through opening and acts on the suspended flow guide member, and the suspended flow guide member drives the spray arm model to rise and rotate under the impact of the water flow.

2. A dishwasher suspension spray assembly for demonstration according to claim 1, characterized in that: The suspension guide member includes at least two guide portions, and the guide portions are bent and extended outward from a position close to the center of the lower surface of the suspension guide member; The water flow is sprayed to the center of the lower surface and flows along the guide portion, generating a torque that drives the spray arm model to rotate.

3. A dishwasher suspension spray assembly for demonstration according to claim 2, characterized in that: At least two guide portions have one end close to the center of the lower surface of the suspended guide member located on the same circumference with the center as the center, and the bending directions of the guide portions are all clockwise or counterclockwise.

4. A dishwasher suspension spray assembly for demonstration according to claim 2, characterized in that: The lower surface of the suspended flow guide is an upwardly concave curved surface, and the highest point of the curved surface is the center.

5. The dishwasher suspension spray assembly for demonstration according to claim 1, characterized in that: The mass of the spray arm model is greater than the mass of the suspended flow guide, and the distance between the spray arm model and the suspended flow guide in the vertical direction is greater than 20 centimeters.

6. A dishwasher suspension spray assembly for demonstration according to any one of claims 1 to 5, characterized in that: The water diversion chamber has a water flow channel inside, and the water flows into the water flow channel in a horizontal direction, flows along the water flow channel, and finally sprays out of the water outlet upward in a vertical direction.

7. A dishwasher suspension spray assembly for demonstration according to claim 6, characterized in that: The water diversion chamber has at least two water flow channels, a water inlet cavity and a water outlet cavity. The water inlet cavity is a circular, horizontally arranged cavity. The inlet end of the water flow channel is located at the periphery of the water inlet cavity, extends along the tangent direction of the periphery of the water inlet cavity, and then bends and extends upward. The outlet ends of each water flow channel are connected upward to the same water outlet channel. The water outlet channel is vertically extended, and the upper end of the water outlet channel is provided with the water outlet.

8. A dishwasher suspension spray assembly for demonstration according to claim 7, characterized in that: A flow stabilizing grid extending along the axis of the water outlet channel is protruded on the inner wall thereof, the lower end of the flow stabilizing grid extends between the water outlet ends of two adjacent water flow channels, and the cross-sectional area of ​​the flow stabilizing grid increases first and then decreases from bottom to top.

9. A dishwasher demonstration prop, characterized in that: The dishwasher demonstration prop is provided with a dishwasher suspension spray assembly for demonstration as described in any one of claims 1 to 8.

10. A dishwasher demonstration prop according to claim 9, characterized in that: It also includes a transparent chamber shell, wherein the water diversion chamber is arranged inside the transparent chamber shell; A placement frame is arranged on the top of the transparent chamber shell for supporting the spray arm model.

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