Dish washing machine with double spraying arms at bottom

Abstract

The utility model discloses a dish-washing machine with double spraying arms at the bottom, which comprises a water distribution component and two spraying arms which are arranged in a dish-washing cavity, the water distribution component is internally provided with a first cavity and a second cavity which are mutually separated, the lower side of the water distribution component is provided with a first water inlet and a second water inlet, the first water inlet is communicated with the first cavity, and the second water inlet is communicated with the second cavity; a first water outlet and two second water outlets are formed in the upper side of the water distribution assembly, and the two second water outlets are used for supplying water to the two spraying arms correspondingly; the lower side of the middle of each spraying arm is fixedly connected with a rotary connecting part, two extension arms are formed on the two sides, corresponding to the rotary connecting parts, of each spraying arm, the rotary connecting parts of the two spraying arms are rotationally connected to the two second water outlets correspondingly, and the extension arms of the two spraying arms are staggered up and down. The double-spraying-arm structure is arranged at the bottom of the dish washing cavity, and the double spraying arms are staggered up and down by prolonging the length of the spraying arms, so that the washing spraying area can be increased, and the mutual interference condition can be avoided.

Description

Technical Field

[0001] This utility model relates to dishwashers, and more specifically, to a dishwasher with a bottom double spray arm. Background Technology

[0002] Modern dishwashers typically have two or even three spray arms, which spray water inside the washing chamber. Among them, the lower spray arm at the bottom of the washing chamber is the most important spray structure in the dishwasher. Most current dishwashers have a single lower spray arm. If a double or multiple spray arm structure is used, the spray arms will interfere with each other, causing them to collide and malfunction.

[0003] Therefore, a new solution is needed to address this problem. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a dishwasher with a bottom double spray arm. The dishwasher has a double spray arm structure at the bottom of the washing chamber. By extending the length of the spray arm and staggering the two spray arms vertically, the washing spray area can be increased, and concentrated spraying can be achieved at the intersection to improve the washing effect and avoid mutual interference.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dishwasher with dual bottom spray arms includes a water distribution assembly and two spray arms installed in the washing chamber. The water distribution assembly has a first chamber and a second chamber separated from each other. The lower side of the water distribution assembly has a first water inlet and a second water inlet, the first water inlet being connected to the first chamber and the second water inlet being connected to the second chamber. The upper side of the water distribution assembly has a first water outlet and two second water outlets. The first water outlet is used to supply water to the upper spray arm in the dishwasher, and the two second water outlets are used to supply water to the two spray arms respectively. The lower middle side of each spray arm is fixedly connected to a rotating connecting part. The spray arm forms two extension arms on both sides corresponding to the rotating connecting part. The rotating connecting parts of the two spray arms are rotatably connected to the two second water outlets respectively, and the extension arms of the two spray arms are staggered vertically.

[0007] The present invention is further configured such that, in the vertical projection direction, the rotational coverage ranges of the extension arms of the two spray arms are interleaved.

[0008] The present invention is further configured such that an upwardly extending riser section is formed at the second water outlet, and the second water outlet is opened at the upper end of the riser section; there is a height difference between the upper ends of the two risers.

[0009] The present invention is further configured such that the rotating connecting part is inserted into the second water outlet at the upper end of the riser, a limiting protrusion ring is fixedly connected to the outer periphery of the riser, a limiting buckle is fixedly connected to the outer side of the rotating connecting part, and the limiting buckle is engaged with the limiting protrusion ring to achieve upper and lower limiting and free rotation.

[0010] The present invention is further configured such that the water distribution component includes a main body and two extensions, the main body is located at the bottom center of the dishwashing cavity, the two extensions are connected to both sides of the main body, and two second water outlets are respectively located in the two extensions.

[0011] The present invention is further configured such that the water distribution assembly includes an upper water distribution seat and a lower water distribution seat, the upper water distribution seat and the lower water distribution seat are mutually enclosed and fixed to form a first cavity and a second cavity, and the first cavity and the second cavity are separated by a partition plate.

[0012] The present invention is further configured such that the upper water distribution seat and the lower water distribution seat are thermally fused together to form a hollow whole.

[0013] The present invention is further configured such that the bottom of the washing cavity is an inner tank base, and an installation groove is provided on the upper side of the inner tank base. The shape of the installation groove is adapted to the water distribution component, and the water distribution component is at least partially embedded in the installation groove.

[0014] The present invention is further configured such that a plurality of locking blocks are fixedly connected to the outer side of the water distribution seat, and a plurality of buckles are fixedly connected to the mounting groove, wherein the buckles are engaged and fixed with the locking blocks.

[0015] The present invention is further configured such that the upper water distribution seat houses the locking block of the lower water distribution seat and the buckle cover in the mounting groove.

[0016] In summary, this utility model has the following beneficial effects:

[0017] By having a double spray arm structure at the bottom of the washing chamber, and by extending the length of the spray arms and staggering the two spray arms vertically, the rotation coverage of the extension arms of the two spray arms intersects in the vertical projection direction. This increases the washing spray area and creates concentrated key washing areas in the area where the sprays intersect, thus improving the washing effect. Furthermore, by separating the two spray arms vertically, interference between them can be avoided.

[0018] By dividing the water distribution assembly into two chambers, namely the first chamber and the second chamber, the first chamber supplies water to the upper spray arm of the dishwasher, while the second chamber supplies water to the two lower spray arms of the dishwasher, thus separating the upper spray arm structure and the lower spray arm structure of the dishwasher. At the bottom of the dishwasher, the water distribution valve can control the water inlet connection between the first chamber and the second chamber separately, thereby realizing the switching control of the upper and lower spray states inside the dishwasher. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the bottom structure of the washing chamber of a dishwasher with bottom double spray arms in this embodiment;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the washing chamber of a dishwasher with bottom double spray arms in this embodiment. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the washing chamber of a dishwasher with bottom double spray arms in this embodiment. Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the water distribution component and the spray arm in this embodiment.

[0023] Reference numerals: Inner tank base 1; Mounting groove 11; Buckle 12; Threaded connecting block 13; First connecting port 14; Second connecting port 15; Water distribution assembly 2; Main body 2001; Extension 2002; Upper water distribution seat 201; Connecting part 2011; Lower water distribution seat 202; Locking block 2021; Divider plate 21; First cavity 22; Second cavity 23; First water inlet 24; Second water inlet 25; First water outlet 26; Second water outlet 27; Riser 271; Limiting protrusion ring 272; Spray arm 3; Rotating connecting part 31; Limiting buckle 311; Extension arm 32. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This embodiment discloses a dishwasher with a bottom double spray arm, refer to Figures 1-4As shown, the dishwasher includes a water distribution assembly 2 and two spray arms 3 installed inside the washing chamber. The bottom of the washing chamber is an inner tub base 1. The water distribution assembly 2 is installed on the inner tub base 1, and the two spray arms 3 are rotatably connected to the inner tub base 1, forming two lower spray arms at the bottom of the dishwasher's washing chamber.

[0026] The water distribution component 2 is provided with a first cavity 22 and a second cavity 23 that are separated from each other. The lower side of the water distribution component 2 is provided with a first water inlet 24 and a second water inlet 25. The first water inlet 24 is connected to the first cavity 22, and the second water inlet 25 is connected to the second cavity 23.

[0027] An installation groove 11 is provided on the upper side of the inner tank base 1. The shape of the installation groove 11 is adapted to the water distribution component 2, and the water distribution component 2 is at least partially embedded in the installation groove 11. After the water distribution component 2 is installed, the upper side of the water distribution component 2 is approximately flush with the surface of the inner tank base 1.

[0028] At the bottom of the mounting slot 11, near the rear wall of the dishwasher, are a first connection port 14 and a second connection port 15. The first connection port 14 and the second connection port 15 are respectively sealed to the first water inlet 24 and the second water inlet 25, supplying water to the first chamber 22 and the second chamber 23 through the first connection port 14 and the second connection port 15. The first connection port 14 and the second connection port 15 are connected to the washing pump through pipes and a water distribution valve, respectively, allowing washing water to flow into the first chamber 22 and the second chamber 23.

[0029] A first water outlet 26 and two second water outlets 27 are provided on the upper side of the water distribution assembly 2. The first water outlet 26 is located near the rear side wall of the dishwasher. Water can be supplied to the upper spray arm inside the dishwasher through the first water outlet 26. The two second water outlets 27 are used to supply water to the two spray arms 3 respectively. The two spray arms 3 are rotated to the two second water outlets 27 respectively.

[0030] Reference Figure 1 As shown, the water distribution assembly 2 includes a main body 2001 and two extensions 2002. The main body 2001 is located at the bottom center of the washing cavity, with its rear side close to the rear wall of the washing cavity. The two extensions 2002 are connected to the front side of the main body 2001. The two extensions 2002 are located on the left and right sides of the main body 2001, extending to the left and right sides respectively. Two second water outlets 27 are located on the two extensions 2002, creating a certain gap between the two spray arms 3.

[0031] A rotating connecting part 31 is fixedly connected to the lower middle side of the spray arm 3. The rotating connecting part 31 is a tubular connecting structure, with its upper end connected to the spray arm 3 and its lower end open. The spray arm 3 forms two extending arms 32 on both sides corresponding to the rotating connecting part 31, and the spray arm 3 as a whole forms a T-shaped structure.

[0032] The rotating connecting parts 31 of the two spray arms 3 are respectively rotatably connected to the two second water outlets 27, and the spray arms 3 can rotate axially around the rotating connecting parts 31. In the vertical projection direction, the rotation coverage of the extension arms 32 of the two spray arms 3 are staggered. In order to avoid interference and collision between the two spray arms 3, the extension arms 32 of the two spray arms 3 are staggered vertically, so that they can rotate and spray smoothly.

[0033] Reference Figure 4 As shown, an upwardly extending riser section 271 is formed at the second water outlet 27, and the second water outlet 27 is located at the upper end of the riser section 271. There is a height difference between the upper ends of the two riser sections 271, so that the two spray arms 3 have a certain height difference after installation, so that the two spray arms 3 will not interfere with each other.

[0034] When the spray arm 3 is installed, the rotating connection part 31 is inserted into the second water outlet 27 at the upper end of the riser part 271, and the rotating connection part 31 and the inner wall of the second water outlet 27 can achieve a rotating seal connection, which can achieve free rotation.

[0035] A limiting ring 272 is fixedly connected to the outer periphery of the riser section 271, and a limiting buckle 311 is fixedly connected to the outer periphery of the rotating connection section 31. After the rotating connection section 31 is inserted into the second outlet 27 at the upper end of the riser section 271, it engages with the limiting ring 272 through the limiting buckle 311 to achieve upper and lower limits, and the limiting buckle 311 and the limiting ring 272 can rotate freely.

[0036] Furthermore, the water distribution assembly 2 is divided into upper and lower seats, including an upper water distribution seat 201 and a lower water distribution seat 202. The upper water distribution seat 201 and the lower water distribution seat 202 are fitted together and fixed, forming a first cavity 22 and a second cavity 23 within the fitted seat. The upper edge of the upper water distribution seat 201 and the lower water distribution seat 202 are thermally fused together and fixed to form a hollow whole, thereby achieving a seal at the connection edge.

[0037] A partition plate 21 is integrally connected inside the lower water distribution seat 202. After the upper water distribution seat 201 and the lower water distribution seat 202 are covered, the partition plate 21 can separate the first cavity 22 and the second cavity 23, forming two chambers that can be filled with water separately.

[0038] The water distribution component 2 is embedded in the mounting groove 11, and the water distribution component 2 and the mounting groove 11 are interlocked and fixed together, and are tightened by screws.

[0039] Specifically, several locking blocks 2021 are fixedly connected to the outside of the lower water distribution seat 202, and several buckles 12 are fixedly connected inside the mounting groove 11. The buckles 12 correspond one-to-one with the locking blocks 2021 and can be locked together. The outer periphery of the upper water distribution seat 201 is larger than that of the lower water distribution seat 202, and the outer periphery of the upper water distribution seat 201 fits into the mounting groove 11.

[0040] After the upper water distribution seat 201 and the lower water distribution seat 202 are fitted together, a gap is formed between the inner circumference of the upper water distribution seat 201 and the outer circumference of the lower water distribution seat 202. During installation, the water distribution component 2 is embedded in the mounting groove 11. The buckle 12 in the mounting groove 11 can extend into the gap between the upper water distribution seat 201 and the lower water distribution seat 202, and the buckle 12 can be engaged and fixed with the locking block 2021 on the outside of the lower water distribution seat 202. The upper water distribution seat 201 can cover the locking block 2021 of the lower water distribution seat 202 and the buckle 12 in the mounting groove 11.

[0041] Reference Figure 2 As shown, a threaded connecting block 13 is also fixedly connected to the bottom of the mounting groove 11. The position of the threaded connecting block 13 corresponds to the gap between the upper water distribution seat 201 and the lower water distribution seat 202. When the water distribution assembly 2 is installed into the mounting groove 11, the threaded connecting block 13 can extend into the gap between the upper water distribution seat 201 and the lower water distribution seat 202.

[0042] A through hole for screws is provided on the upper part of the water distribution upper seat 201. The position of the through hole corresponds to the gap between the water distribution upper seat 201 and the water distribution lower seat 202. The position of the through hole corresponds vertically to the position of the threaded connecting block 13. When fixing, the screw passes through the through hole of the water distribution upper seat 201 and is threadedly connected and fixed to the threaded connecting block 13, which can realize the installation and fixing of the water distribution assembly 2.

[0043] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A dishwasher with dual bottom spray arms, characterized in that, Includes a water distribution assembly (2) and two spray arms (3) installed inside the washing chamber. The water distribution assembly (2) has a first chamber (22) and a second chamber (23) separated from each other. The lower side of the water distribution assembly (2) has a first water inlet (24) and a second water inlet (25). The first water inlet (24) is connected to the first chamber (22), and the second water inlet (25) is connected to the second chamber (23). The upper side of the water distribution assembly (2) has a first water outlet (26) and two second water outlets (3). 27), the first water outlet (26) is used to supply water to the upper spray arm inside the dishwasher, and the two second water outlets (27) are used to supply water to the two spray arms (3) respectively; the middle lower side of the spray arm (3) is fixedly connected to a rotating connecting part (31), and the spray arm (3) forms two extension arms (32) on both sides corresponding to the rotating connecting part (31). The rotating connecting parts (31) of the two spray arms (3) are rotatably connected to the two second water outlets (27) respectively, and the extension arms (32) of the two spray arms (3) are staggered vertically.

2. The dishwasher with bottom double spray arms according to claim 1, characterized in that, In the vertical projection direction, the rotational coverage ranges of the extension arms (32) of the two spray arms (3) are intersected.

3. The dishwasher with bottom double spray arms according to claim 1, characterized in that, A rising riser section (271) is formed at the second outlet (27), and the second outlet (27) is located at the upper end of the riser section (271); there is a height difference between the upper ends of the two risers (271).

4. The dishwasher with bottom double spray arms according to claim 3, characterized in that, The rotating connecting part (31) is inserted into the second outlet (27) at the upper end of the riser part (271). A limiting protrusion ring (272) is fixedly connected to the outer periphery of the riser part (271), and a limiting buckle (311) is fixedly connected to the outside of the rotating connecting part (31). The limiting buckle (311) is engaged with the limiting protrusion ring (272) to achieve upper and lower limits and allow free rotation.

5. The dishwasher with bottom double spray arms according to claim 1, characterized in that, The water distribution component (2) includes a main body (2001) and two extensions (2002). The main body (2001) is located in the middle of the bottom of the dishwashing cavity, and the two extensions (2002) are connected to both sides of the main body (2001). Two second water outlets (27) are located in the two extensions (2002) respectively.

6. The dishwasher with bottom double spray arms according to claim 1, characterized in that, The water distribution assembly (2) includes an upper water distribution seat (201) and a lower water distribution seat (202). The upper water distribution seat (201) and the lower water distribution seat (202) are fitted together and fixed to each other, forming a first cavity (22) and a second cavity (23). The first cavity (22) and the second cavity (23) are separated by a partition plate (21).

7. The dishwasher with bottom double spray arms according to claim 6, characterized in that, The upper water distribution seat (201) and the lower water distribution seat (202) are thermally fused together to form a hollow whole.

8. The dishwasher with bottom double spray arms according to claim 6, characterized in that, The bottom of the washing cavity is an inner tank base (1), and an installation groove (11) is provided on the upper side of the inner tank base (1). The shape of the installation groove (11) is adapted to the water distribution component (2), and the water distribution component (2) is at least partially embedded in the installation groove (11).

9. The dishwasher with bottom double spray arms according to claim 8, characterized in that, The outer side of the water distribution base (202) is fixedly connected with several locking blocks (2021), and the mounting groove (11) is fixedly connected with several buckles (12), and the buckles (12) are engaged and fixed with the locking blocks (2021).

10. The dishwasher with bottom double spray arms according to claim 9, characterized in that, The upper water distribution seat (201) covers the locking block (2021) of the lower water distribution seat (202) and the buckle (12) in the mounting groove (11).

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