Upper spraying arm, upper spraying arm assembly and dish washing machine

Abstract

The upper spraying arm comprises an upper spraying arm shell and a liquid inlet, a water inlet cavity is formed in the upper spraying arm shell, a first water spraying opening is formed in the upper spraying arm shell, and the water inlet cavity is communicated with the liquid inlet and the first water spraying opening; the upper spraying arm shell is provided with a water retaining piece, the water retaining piece is rotationally connected with the upper spraying arm shell, the first water spraying opening is used for spraying out liquid to push the water retaining piece to rotate, and the water retaining piece is used for blocking water flow to enable the water flow to be jetted all around. The upper spraying arm, the upper spraying arm assembly and the dish-washing machine have the advantages that water flow sprayed out of the first water spraying opening pushes the water retaining piece to rotate, the rotating water retaining piece scatters the water flow sprayed out of the first water spraying opening, and then a larger water flow coverage range is obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to dish washer technical field especially is related to a kind of upper spray arm, upper spray arm assembly and dish washer. BACKGROUND

[0002] Domestic dish washer market has been more and more mature after years of cultivation, and the working principle of the existing household dish washer in the market is basically the same.

[0003] In prior art, such as China invention patent announcement No.CN108523803B discloses the upper spray arm structure of dish washer, including connecting pipe and upper spray arm, connecting pipe is equipped with water inlet end and water outlet end, water flow channel is arranged in upper spray arm, water inlet and water spray hole are arranged outside upper spray arm, water inlet and water spray hole are communicated with water flow channel, rotating buckle is movably arranged in the water inlet of upper spray arm, water outlet end of connecting pipe is fixedly connected with rotating buckle, upper spray arm is rotationally connected with connecting pipe and rotating buckle, and water flow channel in water outlet end and upper spray arm is communicated.But the water outlet of the upper spray arm structure is through water spray hole, and the position of water spray hole is fixed, so that the cleaning range is fixed, and the cleaning range is limited. SUMMARY

[0004] The purpose of the present application is to provide an upper spray arm, upper spray arm assembly and dish washer, which can expand the cleaning range.

[0005] The technical scheme adopted by the present application is as follows: an upper spray arm includes an upper spray arm shell and a liquid inlet, a water inlet cavity is arranged in the upper spray arm shell, a first water spray hole is arranged on the upper spray arm shell, and the water inlet cavity is communicated with the liquid inlet and the first water spray hole; a water blocking piece is arranged on the upper spray arm shell, and the water blocking piece is rotationally connected with the upper spray arm shell; the first water spray hole is used to spray liquid to drive the water blocking piece to rotate, and the water blocking piece is used to block water flow to make the water flow spray in all directions.

[0006] Compared with the prior art, the upper spray arm of the present application has the advantages that the water flow sprayed by the first water spray hole drives the water blocking piece to rotate, and the rotating water blocking piece scatters the water flow sprayed by the first water spray hole, thereby obtaining a larger water flow coverage.

[0007] In some embodiments of the present application, the water blocking piece includes at least one water blocking plate, the water blocking plate is arranged above the upper spray arm shell, and the first water spray hole is arranged directly below the water blocking plate.

[0008] Further, the water blocking piece includes a rotating disc, the rotating disc is rotationally connected with the upper spray arm shell, the water blocking plate is arranged around the rotating disc, and one end of the water blocking plate is connected with the rotating disc.

[0009] Further, the water blocking piece includes a fixed ring, and one end of the water blocking plate, which is away from the rotating disc, is connected with the fixed ring.

[0010] Further, the water baffle is provided with an inwardly recessed arc surface, and the first water outlet is directed towards the arc surface.

[0011] Further, the arc length of the cross section of the arc surface gradually decreases from the first water outlet.

[0012] In some embodiments of the present application, the upper spray arm shell is provided with a second water outlet, the second water outlet is in communication with the water inlet cavity, and the second water outlet is used for directly spraying water outward; the projection of the second water outlet on the horizontal plane is outside the projection of the water blocking member on the horizontal plane.

[0013] In some embodiments of the present application, the upper spray arm shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected.

[0014] An upper spray arm assembly comprises the upper spray arm and a connecting pipe, the upper spray arm shell is rotationally connected with the connecting pipe, and the liquid inlet is in communication with the connecting pipe; the bottom surface of the upper spray arm shell is provided with a third water outlet, the third water outlet is arranged on opposite sides of the upper spray arm shell, the opening direction of the third water outlet is tangent to the rotation direction of the upper spray arm shell, and the opening directions of the third water outlets on the two sides are opposite.

[0015] Further, the connecting pipe is provided with outwardly protruding fixing blocks on the two sides, the fixing blocks are used for cooperating with the basket to be fixed; a connecting sleeve is arranged between the connecting pipe and the upper spray arm shell, the connecting sleeve is rotationally sleeved on the connecting pipe, and the upper spray arm shell is connected with the connecting sleeve; the connecting sleeve comprises a first semicircular pipe and a second semicircular pipe, the first semicircular pipe and the second semicircular pipe are detachably connected, and reinforcing ribs are arranged on the first semicircular pipe and the second semicircular pipe.

[0016] A dishwasher comprises the upper spray arm assembly. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of embodiment 1 of the utility model;

[0018] Figure 2 is a sectional view of embodiment 1 of the utility model;

[0019] Figure 3 is an explosion view of embodiment 1 of the utility model;

[0020] Figure 4 is a structural schematic view of a water blocking member of embodiment 1 of the utility model;

[0021] Figure 5 is a structural schematic view of embodiment 2 of the utility model Figure 1 ;

[0022] Figure 6It is the structure schematic view of embodiment 2 of the utility model Figure 2 ;

[0023] Figure 7 It is the installation structure schematic view of connecting sleeve of embodiment 2 of the utility model;

[0024] Figure 8 It is the structure schematic view of first semicircular pipe of embodiment 2 of the utility model;

[0025] Figure 9 It is the installation structure schematic view of bowl basket of embodiment 2 of the utility model;

[0026] Figure 10 It is Figure 9 A part enlarged view in.

[0027] In the drawing: 1, upper spray arm shell;2, liquid inlet;3, water inlet cavity;4, first water outlet;5, water blocking part;6, water blocking plate;7, rotating disc;8, fixed ring;9, camber;10, second water outlet;11, upper shell;12, lower shell;13, connecting pipe;14, third water outlet;15, fixed block;16, connecting sleeve;17, first semicircular pipe;18, second semicircular pipe;19, reinforcing rib;20, bowl basket. Specific implementation

[0028] In order to further illustrate the technical means and effects taken by the utility model to achieve the predetermined utility model purposes, the specific implementation, structure, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0029] Embodiment 1:

[0030] The upper spray arm provided in the embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 , comprises upper spray arm shell 1 and liquid inlet 2, and the water inlet cavity 3 is arranged in the upper spray arm shell 1, the first water outlet 4 is arranged on the upper spray arm shell 1, and the water inlet cavity 3 is communicated with the liquid inlet 2 and the first water outlet 4 respectively;The water blocking part 5 is arranged on the upper spray arm shell 1, and the water blocking part 5 is rotatably connected with the upper spray arm shell 1, the first water outlet 4 is used for spraying liquid to drive the water blocking part 5 to rotate, and the water blocking part 5 is used for blocking water flow to make the water flow radiate.

[0031] The water flow sprayed by the first water outlet 4 drives the water blocking part 5 to rotate, and the rotating water blocking part 5 will scatter the water flow sprayed by the first water outlet 4, thereby obtaining a larger water flow coverage range.

[0032] In order to expand the reliable spraying range, as Figure 4As shown, the water blocking part 5 comprises at least one water blocking plate 6, which is arranged above the upper spray arm shell 1, and the first water outlet 4 is arranged directly below the water blocking plate 6. In this embodiment, 12 water blocking plates 6 are arranged, and the large number of water blocking plates 6 can continuously act on the water flow to form an uninterrupted water flow scattering effect. The water blocking plate 6 is designed to block the water flow sprayed from the first water outlet 4, and when the water blocking plate 6 rotates, it can scatter the water flow sprayed from the first water outlet 4, so that the water flow scatters, expands the spray cleaning range, and the first water outlet 4 is directly below the water blocking plate 6, which is close to the water blocking plate 6. The closer the distance, the faster the speed of the water flow, and the farther the distance after being scattered by the water blocking plate 6, the larger the spray range.

[0033] In order to rotate reliably, the water blocking part 5 comprises a rotating disc 7, which is rotatably connected with the upper spray arm shell 1, the water blocking plates 6 are evenly distributed around the rotating disc 7, and one end of the water blocking plate 6 is connected with the rotating disc 7. The design of the rotating disc 7 can facilitate the connection of the water blocking plate 6, the water blocking plate 6 is evenly distributed around the rotating disc 7, and the rotation is more stable.

[0034] In order to improve the structural strength, the water blocking part 5 comprises a fixing ring 8, and one end of the water blocking plate 6 away from the rotating disc 7 is connected with the fixing ring 8. The design of the fixing ring 8 can fix the outer side of the water blocking plate 6, so that both ends of the water blocking plate 6 are fixed, and the overall structural strength is high.

[0035] In order to reliably push the water flow, the water blocking plate 6 is provided with an inwardly recessed arc surface 9, and the opening of the first water outlet 4 faces the arc surface 9; the opening of the first water outlet 4 is inclined. The design of the arc surface 9 has a larger contact area with the water flow and is more easily pushed by the water flow; the inclined opening of the first water outlet 4 can generate a rotating pushing force on the water blocking plate 6, and the pushing effect is better.

[0036] In order to reliably push the water flow, the arc length of the cross section of the arc surface 9 gradually decreases from close to the first water outlet 4 to away from the first water outlet 4. The lower part of the arc surface 9 has a large area, which is convenient for contacting with the water flow. After the water flow contacts the lower part of the arc surface 9, it will flow upward, and the upward area of the arc surface 9 gradually decreases, so that the flow channel of the water flow gradually decreases, and the flow rate of the water flow increases. The water flow flowing out of the top of the arc surface 9 has a high speed, can diffuse a long distance, and has a large range.

[0037] In order to improve the cleaning effect, the upper spray arm shell 1 is provided with a second water outlet 10, the second water outlet 10 is communicated with the water inlet cavity 3, and the second water outlet 10 is used for directly spraying water outward; the projection of the second water outlet 10 on the horizontal plane is outside the projection of the water blocking part 5 on the horizontal plane, and is away from the water blocking part 5, so that the water outlet is not blocked by the water blocking part 5. The design of the second water outlet 10 can effectively expand the cleaning range of the water flow and improve the cleanliness of the cleaning.

[0038] In order to make the upper spray arm shell 1 reliable, the upper spray arm shell 1 comprises an upper shell 11 and a lower shell 12, which are detachably connected. The upper shell 11 and the lower shell 12 are detachably connected to facilitate assembly and inspection and maintenance after internal blockage. The liquid inlet 2, the water blocking piece 5, the first water spraying port 4 and the second water spraying port 10 are all arranged on the upper shell 11.

[0039] In the embodiment, the upper spray arm shell 1 is in a long strip shape, and the liquid inlet 2 is arranged at the center. Two water blocking pieces 5 are symmetrically arranged relative to the liquid inlet 2, so that the distance from the liquid inlet 2 to the two water blocking pieces 5 is approximately equal, the water flow impact on the two water blocking pieces 5 is approximately equal, the rotation speed of the two water blocking pieces 5 is equal, and the cleaning effect of the two sides is balanced. The first water spraying ports 4 are symmetrically arranged relative to the liquid inlet 2, and two first water spraying ports 4 are arranged on each side. The first water spraying ports 4 on the same side are evenly distributed around the rotation center of the water blocking piece 5.

[0040] Embodiment 2:

[0041] The upper spray arm assembly provided in the embodiment comprises an upper spray arm and a connecting pipe 13 as shown in Figure 5 、 Figure 6 , wherein the upper spray arm shell 1 is rotationally connected with the connecting pipe 13, and the liquid inlet 2 is in communication with the connecting pipe 13. The bottom surface of the upper spray arm shell 1 is provided with third water spraying ports 14, which are arranged on opposite sides of the upper spray arm shell 1. The opening direction of the third water spraying ports 14 is tangent to the rotation direction of the upper spray arm shell 1. The opening directions of the third water spraying ports 14 on the two sides are opposite. The water flow sprayed by the third water spraying ports 14 can push the upper spray arm shell 1 to rotate. At the same time, the third water spraying ports 14 can make the residual water flow out through the third water spraying ports 14, so as to ensure that there is no residual water in the interior after washing is completed. In the embodiment, the connecting pipe 13 is rotationally connected with the center of the upper spray arm shell 1. The third water spraying ports 14 are arranged on the bottom surface of the upper spray arm shell 1. The rotation radius of the upper spray arm shell 1 is smaller than the length of the connecting pipe 13.

[0042] In order to cooperate with the basket 20 stably, as shown in Figure 9 、 Figure 10 , the two sides of the connecting pipe 13 are provided with outwardly protruding fixing blocks 15. The fixing blocks 15 are used for cooperating with the basket 20 to fix. Through the cooperation of the fixing blocks 15 and the basket 20, the whole can be ensured to be stable and not to shake. Figure 7 、 Figure 8As shown, the connecting pipe 13 and the upper spray arm shell 1 are provided with a connecting sleeve 16, the connecting sleeve 16 is rotatably sleeved on the connecting pipe 13, and the upper spray arm shell 1 is connected with the connecting sleeve 16; the connecting sleeve 16 comprises a first semicircular pipe 17 and a second semicircular pipe 18, the first semicircular pipe 17 and the second semicircular pipe 18 are detachably connected, the first semicircular pipe 17 and the second semicircular pipe 18 are provided with a reinforcing rib 19, the connecting sleeve 16 is designed in a split body mode, so that the connecting sleeve 16 and the connecting pipe 13 are convenient to install, and the reinforcing rib 19 improves the structural strength of the connecting sleeve 16 and can reduce deformation, thereby ensuring the reliability of the connection.

[0043] Embodiment 3:

[0044] The embodiment provides a kind of dish washer, including a kind of upper spray arm assembly as described in embodiment 2.

[0045] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any equivalent embodiments with equivalent changes are equivalent to the above embodiments. Any modification, equivalent change and modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the present application.

Claims

1. An upper spray arm assembly, characterized in that, The system includes an upper spray arm and a connecting pipe (13). The upper spray arm includes an upper spray arm housing (1) and a liquid inlet (2). The upper spray arm housing (1) is provided with a water inlet chamber (3). The upper spray arm housing (1) is provided with a first water spray nozzle (4). The water inlet chamber (3) is connected to the liquid inlet (2) and the first water spray nozzle (4) respectively. The upper spray arm housing (1) is provided with a water baffle (5). The water baffle (5) is rotatably connected to the upper spray arm housing (1). The first water spray nozzle (4) is used to spray out liquid and thus push the water baffle (5) to rotate. The water baffle (5) is used to block the water flow and thus make the water flow in all directions. The upper spray arm housing (1) is rotatably connected to the connecting pipe (13). The liquid inlet (2) is connected to the connecting pipe (13). The bottom surface of the upper spray arm housing (1) is provided with a third water nozzle (14). The third water nozzle (14) is located on opposite sides of the upper spray arm housing (1). The opening direction of the third water nozzle (14) is tangent to the rotation direction of the upper spray arm housing (1). The opening directions of the third water nozzles (14) on both sides are opposite. A connecting sleeve (16) is provided between the connecting pipe (13) and the upper spray arm housing (1). The connecting sleeve (16) is rotatably fitted on the connecting pipe (13). The upper spray arm housing (1) is connected to the connecting sleeve (16). The connecting sleeve (16) includes a first semi-circular tube (17) and a second semi-circular tube (18). The first semi-circular tube (17) and the second semi-circular tube (18) are detachably connected.

2. The upper spray arm assembly according to claim 1, characterized in that: The connecting pipe (13) has outward protruding fixing blocks (15) on both sides, which are used to fix the bowl basket (20) in conjunction with it; the first semicircular pipe (17) and the second semicircular pipe (18) are both provided with reinforcing ribs (19).

3. The upper spray arm assembly according to claim 1, characterized in that: The water baffle (5) includes at least one water baffle (6), which is located above the upper spray arm housing (1), and the first spray nozzle (4) is located directly below the water baffle (6).

4. The upper spray arm assembly according to claim 3, characterized in that: The water baffle (5) includes a turntable (7), which is rotatably connected to the upper spray arm housing (1). A water baffle (6) is arranged around the turntable (7), and one end of the water baffle (6) is connected to the turntable (7).

5. The upper spray arm assembly according to claim 4, characterized in that: The water-blocking component (5) includes a fixing ring (8), and the end of the water-blocking plate (6) away from the turntable (7) is connected to the fixing ring (8).

6. The upper spray arm assembly according to claim 3, characterized in that: The baffle plate (6) has an inwardly concave arc surface (9), and the opening of the first water nozzle (4) faces the arc surface (9); the opening of the first water nozzle (4) is oblique.

7. An upper spray arm assembly according to claim 6, characterized in that: The arc length of the cross section on the arc surface (9) gradually decreases from near the first water nozzle (4) to far away from the first water nozzle (4).

8. The upper spray arm assembly according to claim 1, characterized in that: The upper spray arm housing (1) is provided with a second water nozzle (10), which is connected to the water inlet chamber (3). The second water nozzle (10) is used to spray water directly outward. The projection of the second water nozzle (10) on the horizontal plane is outside the projection of the water baffle (5) on the horizontal plane. The upper spray arm housing (1) includes an upper housing (11) and a lower housing (12), which are detachably connected.

9. A dishwasher, characterized in that, Includes an upper spray arm assembly as described in claim 2.

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