Water spray device and dishwasher

Abstract

The present invention provides a water spray device and a dishwasher, the water spray device comprises a first circulation pipeline and a second circulation pipeline, the first circulation pipeline comprises a spray arm and a first circulation water pipe, the water outlet end of the first circulation water pipe is sealed and connected to the spray arm; the second circulation pipeline comprises a second circulation water pipe and a booster assembly, the water inlet end of the second circulation water pipe is sealed and connected to the first circulation water pipe, a water retaining ring is arranged in the second circulation water pipe, the booster assembly comprises a baffle and a reset member, the baffle is arranged in the second circulation water pipe, so as to increase the water pressure after the baffle abuts against the water retaining ring by using the water flow, the reset member is arranged on the side wall of the second circulation water pipe and connected to the baffle. During the washing process, the water spray device uses the reset member to drive the baffle to quickly abut against the water retaining ring in the second circulation water pipe to increase the water pressure in the first circulation pipeline.

Description

Technical Field

[0001] The invention relates to the field of extrusion filtration, and in particular to a water spray device and a dishwasher. Background Art

[0002] With the accelerated pace of life and people's pursuit of a higher quality of life, dishwashers have become one of the indispensable kitchen appliances in modern families, and the cleaning rate is the core indicator of dishwashers. The spray arm of a dishwasher usually sprays water for cleaning, which is prone to dead corners and incomplete cleaning, causing user pain points.

[0003] Dishwashers in the prior art usually use full-coverage structures such as satellite spray arms and waterwalls to improve the cleaning effect, but the structure is relatively complex, resulting in complex assembly and high cost. Summary of the invention

[0004] The purpose of the present invention is to provide a water spray device, which has a baffle plate in the second circulating water pipe. During the washing process, the water flow is used to impact the baffle plate so that the baffle plate abuts against the second circulating water pipe. The reset member pushes the baffle plate to quickly abut against the water retaining ring to increase the water pressure in the first circulating pipeline.

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, a water spray device is provided. The water spray device comprises a first circulation pipeline and a second circulation pipeline, the first circulation pipeline comprises a spray arm and a first circulation water pipe, the spray arm is provided with a water outlet hole, the water outlet end of the first circulation water pipe is sealed and connected to the spray arm to communicate with the spray arm; the second circulation pipeline comprises a second circulation water pipe and a booster assembly, the water inlet end of the second circulation water pipe is sealed and connected to the first circulation water pipe to communicate with the first circulation water pipe, a water retaining ring is arranged in the second circulation water pipe, the booster assembly comprises a baffle and a reset member, the baffle is arranged in the second circulation water pipe, so as to increase the water pressure after the baffle abuts against the water retaining ring by using water flow, and the reset member is arranged on the side wall of the second circulation water pipe and connected to the baffle to reset the baffle.

[0007] According to one embodiment of the present invention, the reset member includes a motor, an elliptical wheel and a connecting rod, the output end of the motor is connected to the elliptical wheel, one end of the connecting rod is connected to the baffle, and the other end abuts against the edge of the elliptical wheel.

[0008] According to an embodiment of the present invention, the boosting assembly further includes a fixed slider, the fixed slider is connected to the side wall of the second circulating water pipe, the fixed slider is provided with a first through hole, and the middle portion of the connecting rod is disposed in the first through hole.

[0009] According to one embodiment of the present invention, the second circulating water pipe includes a first water pipe and a second water pipe connected in sequence, the water inlet end of the first water pipe is connected to the first circulating water pipe, the water retaining ring is arranged between the first water pipe and the second water pipe, the baffle is arranged in the first water pipe, and the reset member is arranged in the second water pipe.

[0010] According to one embodiment of the present invention, the first water pipe includes a straight pipe section, a curved pipe section and a tapered gradually expanding section which are connected in sequence, the water inlet end diameter of the tapered gradually expanding section is smaller than the water outlet end diameter, the water inlet end of the straight pipe section is connected to the first circulating water pipe, the water outlet end of the tapered gradually expanding section is connected to the outer ring of the water retaining ring, and the water inlet end of the second water pipe is connected to the inner ring of the water retaining ring.

[0011] According to an embodiment of the present invention, the second circulation pipeline further includes a solenoid valve, and the solenoid valve is arranged in the second circulation water pipe to control the on-off of the second circulation pipeline.

[0012] According to one embodiment of the present invention, the second circulation pipeline further includes a high-pressure absorption container filled with gas, a fourth through hole is opened on the side wall of the second circulation water pipe, and the inner cavity of the high-pressure absorption container is connected with the inner cavity of the second circulation water pipe through the fourth through hole.

[0013] According to another aspect of the present invention, a dishwasher is provided. The dishwasher comprises the aforementioned water spray device and a dishwasher inner tank, the dishwasher inner tank comprises a bottom plate and side plates both connected to the bottom plate, the bottom plate and the upper parts of the side plates are arranged to form a dishwashing cavity, the spray arm is arranged in the dishwashing cavity, the bottom plate and the lower parts of the side plates are arranged to form an equipment cavity, a second through hole is opened on the bottom plate, and the first circulating water pipe is arranged in the second through hole.

[0014] According to one embodiment of the present invention, the first circulation pipeline further includes a circulation pump, the other end of the first circulation water pipe is connected to the circulation pump, and the water inlet end of the circulation pump is arranged at the lowest point of the dishwashing cavity.

[0015] According to one embodiment of the present invention, the dishwasher inner tank also includes a water collecting cup, the cup mouth of the water collecting cup is sealed and connected to the bottom plate at the second through hole, the water inlet end of the circulation pump is arranged in the water collecting cup, and the water outlet end of the second circulation water pipe is arranged in the water collecting cup.

[0016] According to one embodiment of the present invention, a third through hole is formed at the bottom of the side wall of the water collecting cup, and the water outlet end of the second circulating water pipe is sealed and connected to the water collecting cup at the third through hole.

[0017] An embodiment of the present invention has the following advantages or beneficial effects:

[0018] The water spray device of the present invention includes a first circulation pipeline and a second circulation pipeline. A baffle and a water retaining ring are arranged in the second circulation water pipe of the second circulation pipeline, so that the baffle abuts against the water retaining ring under the impact of the water flow to block the water flow in the second circulation water pipe, and the reset member resets the baffle at the moment of blocking the water flow, and the reset member pushes the water retaining ring to perform non-uniform motion and quickly abuts against the water retaining ring, thereby increasing the water flow pressure in the first circulation pipeline, increasing the spray water pressure and spray flow rate in the spray arm, significantly improving the cleaning rate of the existing spray arm, improving user experience, and enhancing the company's product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0020] Figure 1 is a schematic internal diagram of a water spray device according to an exemplary embodiment.

[0021] Figure 2 According to an exemplary embodiment, Figure 1 A partial enlarged view of point A in the middle.

[0022] Figure 3 is a perspective view of a water spray device according to an exemplary embodiment.

[0023] Figure 4 FIG. 1 is a schematic diagram showing the interior of a dishwasher according to another exemplary embodiment.

[0024] The reference numerals are described as follows:

[0025] 1. First circulation pipeline; 11. Spray arm; 111. Water outlet; 12. First circulation water pipe; 121. Fifth through hole; 13. Circulation pump; 2. Second circulation pipeline; 21. Second circulation water pipe; 211. Water retaining ring; 212. First water pipe; 2121. Fourth through hole; 2122. Straight pipe section; 2123. Bend pipe section; 2124. Conical expansion section; 213. Second water pipe; 22. Pressurization assembly; 221. baffle; 222. reset member; 2221. motor; 2222. elliptical wheel; 2223. connecting rod; 223. fixed slider; 2231. first through hole; 23. solenoid valve; 24. high-pressure absorption container; 3. dishwasher liner; 31. bottom plate; 311. second through hole; 32. side plate; 33. water collecting cup; 331. third through hole; 34. top plate; 35. dishwashing cavity; 36. equipment cavity. DETAILED DESCRIPTION

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0027] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0028] like Figures 1 to 3 As shown, Figure 1 The figure shows an internal schematic diagram of a water spray device provided by the present invention. Figure 2 The present invention provides Figure 1 A partial enlarged view of point A in the middle. Figure 3 A stereoscopic view of a water spray device provided by the present invention is shown.

[0029] The water spraying device of the embodiment of the present invention includes a first circulation pipeline 1 and a second circulation pipeline 2. The first circulation pipeline 1 includes a spray arm 11 and a first circulation water pipe 12. The spray arm 11 is provided with a water outlet 111. The water outlet end of the first circulation water pipe 12 is sealed and connected to the spray arm 11 to communicate with the spray arm 11; the second circulation pipeline 2 includes a second circulation water pipe 21 and a booster assembly 22. The water inlet end of the second circulation water pipe 21 is sealed and connected to the first circulation water pipe 12 to communicate with the first circulation water pipe 12. A water retaining ring 211 is arranged in the second circulation water pipe 21. The booster assembly 22 includes a baffle 221 and a reset member 222. The baffle 221 is arranged in the second circulation water pipe 21 so as to increase the water pressure after the baffle 221 abuts against the water retaining ring 211 by utilizing the water flow. The reset member 222 is arranged on the side wall of the second circulation water pipe 21 and is connected to the baffle 221 so as to reset the baffle 221.

[0030] Among them, water enters the first circulating water pipe 12, and then enters the spray arm 11 for spraying, so that the first circulating pipeline 1 serves as the main circulating pipeline, and one end of the second circulating water pipe 21 of the second circulating pipeline 2 is connected to the first circulating water pipe 12. The fifth through hole 121 can be opened on the side wall of the first circulating water pipe 12, and the water inlet end of the first water pipe 212 of the second circulating water pipe 21 is sealed and connected to the first circulating water pipe 12 at the fifth through hole 121. The other end of the second circulating water pipe 21, that is, the water outlet end of the second water pipe 213 is connected to the bottom of the dishwashing chamber 35, and can also be connected to the collecting chamber 35. The inner cavity of the cup is connected, and the baffle 221 and the reset member 222 are arranged inside the second circulating water pipe 21. When the water flow pushes the baffle 221 to move to the right, the baffle 221 finally abuts against the water retaining ring 211 to generate high pressure, and the reset member 222 then resets the baffle 221, so that the baffle 221 and the water retaining ring 211 are released from abutment. At this time, a small amount of water may flow into the second water pipe 213 from the gap. After the baffle 221 is reset, it is ready to enter the next cycle. This cycle is used to increase the water flow pressure in the first circulating pipeline 1, and increase the spray water pressure and spray flow rate in the spray arm 11.

[0031] In a preferred embodiment of the present invention, the reset member 222 includes a motor 2221, an elliptical wheel 2222 and a connecting rod 2223, the output end of the motor 2221 is connected to the elliptical wheel 2222, one end of the connecting rod 2223 is connected to the baffle 221, and the other end abuts against the edge of the elliptical wheel 2222.

[0032] like Figures 1 to 3 As shown, the motor 2221 can be fixed to the outside of the second circulating water pipe 21 through a bracket, and the output end of the motor 2221 extends into the second water pipe 213 and is connected to the elliptical wheel 2222. The other end of the connecting rod 2223 and the edge of the elliptical wheel 2222 can be rotatably connected through a limiter. When the elliptical wheel 2222 rotates with the output shaft of the motor 2221, it can push the baffle 221 to reciprocate left and right. When the long axis of the elliptical wheel 2222 is in a horizontal direction, the baffle 221 does not fit the water retaining ring 211, and the water flow will flow into the second water pipe 213, and the elliptical wheel 2222 continues to rotate. When the short axis of the elliptical wheel 2222 is in a horizontal direction, the baffle 221 abuts against the water retaining ring 211 to stop the water flow, causing a high-pressure impact in the pipeline. Of course, the other end of the connecting rod 2223 can also directly abut against the elliptical wheel 2222. The baffle 221 moves to the right by the impact of the water flow, and after abutting against the water retaining ring 211, the motor 2221 drives the elliptical wheel 2222 to rotate, and then the baffle 221 is reset through the connecting rod 2223.

[0033] In a preferred embodiment of the present invention, the boosting assembly 22 also includes a fixed slider 223 , which is connected to the side wall of the second circulating water pipe 21 , and has a first through hole 2231 , in which the middle portion of the connecting rod 2223 is disposed.

[0034] like Figures 1 to 3 As shown, a fixed slider 223 is added in the second water pipe 213, and the connecting rod 2223 is connected to the inner ring edge of the fixed slider 223 when passing through the first through hole 2231, and the outer ring edge of the fixed slider 223 is connected to the pipe wall of the second water pipe 213. The fixed slider 223 supports the connecting rod 2223, which can ensure that the connecting rod 2223 will not deviate during the process of driving the baffle 221 to move left and right.

[0035] In a preferred embodiment of the present invention, the second circulating water pipe 21 includes a first water pipe 212 and a second water pipe 213 connected in sequence, the water inlet end of the first water pipe 212 is connected to the first circulating water pipe 12, the water retaining ring 211 is arranged between the first water pipe 212 and the second water pipe 213, the baffle 221 is arranged in the first water pipe 212, and the reset member 222 is arranged in the second water pipe 213.

[0036] like Figures 1 to 3 As shown, the second circulating water pipe 21 is divided into a first water pipe 212 and a second water pipe 213, so that the water retaining ring 211 is conveniently arranged between the first water pipe 212 and the second water pipe 213, and the baffle 221 is arranged in the first water pipe 212, and the connecting rod 2223, the elliptical wheel 2222 and the fixed slider 223 are arranged in the second water pipe 213.

[0037] In a preferred embodiment of the present invention, the first water pipe 212 includes a straight pipe section 2122, a curved pipe section 2123 and a tapered gradually expanding section 2124 connected in sequence, the water inlet end diameter of the tapered gradually expanding section 2124 is smaller than the water outlet end diameter, the water inlet end of the straight pipe section 2122 is connected to the first circulating water pipe 12, the water outlet end of the tapered gradually expanding section 2124 is connected to the outer ring of the water retaining ring 211, and the water inlet end of the second water pipe 213 is connected to the inner ring of the water retaining ring 211.

[0038] like Figures 1 to 3As shown, the straight pipe section 2122 and the tapered gradually expanding section 2124 are arranged up and down, and the curved pipe section 2123 connects the left end of the straight pipe section 2122 with the left end of the tapered gradually expanding section 2124 to connect the straight pipe section 2122 and the tapered gradually expanding section 2124, thereby reducing the occupied volume of the second circulation pipeline 2. Since the diameter of the left end of the tapered gradually expanding section 2124 is smaller than the diameter of the right end, when the baffle 221 abuts against the water retaining ring 211, a leftward pressure is generated on the water flow on the right side of the baffle 221. Since the cross-sectional area of ​​the tapered gradually expanding section 2124 gradually decreases in the direction of pressure, the tapered gradually expanding section 2124 has a further gathering effect on the high pressure generated by the second circulation pipeline 2, thereby further improving the spray water pressure and spray water flow rate in the spray arm 11.

[0039] In a preferred embodiment of the present invention, the second circulation pipeline 2 further includes a solenoid valve 23 , which is disposed in the second circulation water pipe 21 to control the on-off of the second circulation pipeline 2 .

[0040] like Figures 1 to 3 As shown, when the dishwasher selects the energy-saving wash or pre-rinse mode, the cleaning time is long and there is no need to open the second circulation pipeline 2 to increase the water pressure and flow rate. Therefore, the second circulation pipeline 2 can be disconnected by controlling the solenoid valve 23. When the water pressure and flow rate of the first circulation pipeline 1 need to be increased in the ultra-fast wash or strong wash mode, the second circulation pipeline 2 can be opened by the solenoid valve 23, and then the water pressure in the spray arm 11 of the first circulation pipeline 1 is increased through the reciprocating motion of the baffle 221, thereby increasing the spray water pressure and spray flow rate in the spray arm 11.

[0041] In a preferred embodiment of the present invention, the second circulation pipeline 2 also includes a high-pressure absorption container 24 filled with gas, and a fourth through hole 2121 is opened on the side wall of the second circulation water pipe 21, and the inner cavity of the high-pressure absorption container 24 is connected to the inner cavity of the second circulation water pipe 21 through the fourth through hole 2121.

[0042] like Figure 1 As shown, the fourth through hole 2121 is opened on the side wall of the first water pipe 212, and the high-pressure absorption container 24 is connected to the first water pipe 212 through the fourth through hole 2121. Since the baffle 221 blocks the high pressure generated by the water flow in the second circulating water pipe 21, the water level in the high-pressure absorption container 24 will rise, and the gas filled in the top of the high-pressure absorption container 24 will be compressed, and the instantaneous high pressure is stored in this container. The high-pressure absorption container 24 will slowly release energy, causing the pressure in the first circulating pipeline 1 to increase, and the water flow velocity on the spray arm 11 will increase, thereby improving the flushing effect.

[0043] The water spraying device of the present invention comprises a first circulation pipeline 1 and a second circulation pipeline 2. A baffle plate 221 and a water retaining ring 211 are arranged in the second circulation water pipe 21 of the second circulation pipeline 2. The rotation speed of the elliptical wheel 2222 driven by the motor 2221 is not a uniform motion, but a rotation motion that gradually increases in speed and then gradually decreases in speed. When the long axis of the elliptical wheel 2222 is horizontal, the rotation speed is the slowest. At this time, the baffle plate 221 is away from the water retaining ring 211. When the short axis of the elliptical wheel 2222 is horizontal, the rotation speed is the fastest, so as to realize the rapid contact between the baffle plate 221 and the water retaining ring 211. The water flow is pressurized due to the water hammer effect generated by inertia, thereby increasing the water flow pressure in the first circulation pipeline 1, and increasing the spray water pressure and water spray flow rate in the spray arm 11.

[0044] like Figure 4 As shown, Figure 4 The figure shows the internal schematic diagram of the dishwasher provided by the present invention.

[0045] The dishwasher of the embodiment of the present invention includes the aforementioned water spray device and a dishwasher inner tank 3, wherein the dishwasher inner tank 3 includes a bottom plate 31 and side plates 32 connected to the bottom plate 31, the upper parts of the bottom plate 31 and the side plates 32 are arranged to form a dishwashing cavity 35, the spray arm 11 is arranged in the dishwashing cavity 35, the lower parts of the bottom plate 31 and the side plates 32 are arranged to form an equipment cavity 36, a second through hole 311 is opened on the bottom plate 31, and the first circulating water pipe 12 is arranged in the second through hole 311.

[0046] The bottom plate 31 and the upper part of the side plate 32 are enclosed to form a dishwashing cavity 35. Of course, the inner tank 3 of the dishwasher may also include a top plate 34 for preventing dishwashing water from overflowing. The dishes are placed in the dishwashing cavity 35 through a dish rack. Water enters the dishwashing cavity 35 and is collected at the bottom of the dishwashing cavity 35 due to its own weight. The bottom of the dishwashing cavity 35 may be connected to a drain pipe so that the collected water flows out along the drain pipe. The spray arm 11 of the water spraying device is accommodated in the dishwashing cavity 35. A second through hole 311 is further provided on the bottom plate 31 of the dishwashing cavity 35 for the first circulating water pipe 12 to pass through. The lower part of the first circulating water pipe 12 and the second circulating pipeline 2 are all arranged in the equipment cavity 36. The baffle plate 221 in the second circulating water pipe 21 reciprocates to abut and release the abutment with the water retaining ring 211 to increase the water flow pressure in the first circulating pipeline 1, thereby increasing the spray water pressure and the spray flow rate in the spray arm 11.

[0047] In a preferred embodiment of the present invention, the first circulation pipeline 1 further includes a circulation pump 13 , the other end of the first circulation water pipe 12 is connected to the circulation pump 13 , and the water inlet end of the circulation pump 13 is arranged at the lowest point of the dishwashing chamber 35 .

[0048] like Figure 1As shown, after the water in the dishwashing chamber 35 is rinsed for the first time, the water is concentrated at the bottom of the dishwashing chamber 35 due to its own weight. A circulation pump 13 is set at the lowest point of the dishwashing chamber 35 to pump the water after the first rinse into the first circulation pipeline 1 to repeatedly rinse the dishes.

[0049] In a preferred embodiment of the present invention, the dishwasher inner tank 3 also includes a water collecting cup 33, the cup mouth of the water collecting cup 33 is sealed and connected to the bottom plate 31 at the second through hole 311, the water inlet end of the circulation pump 13 is arranged in the water collecting cup 33, and the water outlet end of the second circulation water pipe 21 is arranged in the water collecting cup 33.

[0050] like Figures 1 to 3 As shown, the second through hole 311 is opened on the bottom plate 31, and the cup mouth of the water collecting cup 33 is fixedly connected to the water collecting cup 33 at the second through hole 311. The bottom of the water collecting cup 33 is lower than the bottom plate 31, so that the water in the dishwashing cavity 35 can be concentrated and flow into the water collecting cup 33. The water inlet end of the circulation pump 13 is arranged in the water collecting cup 33, especially at the bottom of the water collecting cup 33, so that all the water entering the dishwasher is fully recycled, thereby avoiding a large amount of residual water from being retained at the bottom of the water collecting cup 33 for a long time.

[0051] In a preferred embodiment of the present invention, a third through hole 331 is formed at the bottom of the side wall of the water collecting cup 33 , and the water outlet end of the second circulating water pipe 21 is sealedly connected to the water collecting cup 33 at the third through hole 331 .

[0052] like Figures 1 to 3 As shown, the third through hole 331 is opened at the bottom of the side wall of the water collecting cup 33, which directly connects the water outlet end of the second circulating water pipe 21, that is, the second water pipe 213, with the bottom inner cavity of the water collecting cup 33, so as to facilitate the water flow in the second circulating pipeline 2 to be directly introduced into the water collecting cup 33.

[0053] The dishwasher of the present invention comprises a water spray device and a dishwasher inner tank 3, wherein the spray arm 11 of the water spray device is arranged in a dishwashing cavity 35, and the other parts of the water spray device except the spray arm 11 are arranged in an equipment cavity 36, the first circulating water pipe 12 extends from the equipment cavity 36 into the dishwashing cavity 35, and the bottom plate 31 separates the dishwashing cavity 35 from the equipment cavity 36 to prevent water from entering the equipment cavity 36 and causing an accident. During the washing process, the baffle 221 is pushed by the reset member 222 to make non-uniform motion and quickly abut against the water retaining ring 211, thereby increasing the water flow pressure in the first circulating pipeline 1, and increasing the spray water pressure and water flow rate in the spray arm 11.

[0054] In the embodiments of the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0055] In the description of the embodiments of the present invention, it needs to be understood that the directions or positional relationships indicated by the terms "upper" and "lower" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0056] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water spray device, characterized in that: include: A first circulation pipeline (1), the first circulation pipeline (1) comprising a spray arm (11) and a first circulation water pipe (12), the spray arm (11) being provided with a water outlet hole (111), and a water outlet end of the first circulation water pipe (12) being sealed and connected to the spray arm (11) so as to communicate with the spray arm (11); and A second circulation pipeline (2), the second circulation pipeline (2) comprising a second circulation water pipe (21) and a boosting assembly (22), the water inlet end of the second circulation water pipe (21) being sealed and connected to the first circulation water pipe (12) so as to communicate with the first circulation water pipe (12), a water retaining ring (211) being arranged in the second circulation water pipe (21), the boosting assembly (22) comprising a baffle (221) and a reset member (222), the baffle (221) being arranged in the second circulation water pipe (21) so as to increase the water pressure after the baffle (221) abuts against the water retaining ring (211) by means of water flow, the reset member (222) being arranged on the side wall of the second circulation water pipe (21) and connected to the baffle (221) so as to reset the baffle (221); One end of the second circulating water pipe (21) is in communication with the first circulating water pipe (12), and the other end of the second circulating water pipe (21) is in communication with the bottom of the dishwashing cavity (35), or with the inner cavity of the water collecting cup (33); The second circulation pipeline (2) further comprises a solenoid valve (23), wherein the solenoid valve (23) is arranged in the second circulation water pipe (21) to control the on-off of the second circulation pipeline (2).

2. The water spray device according to claim 1, characterized in that: The reset member (222) comprises a motor (2221), an elliptical wheel (2222) and a connecting rod (2223); the output end of the motor (2221) is connected to the elliptical wheel (2222); one end of the connecting rod (2223) is connected to the baffle (221), and the other end abuts against the edge of the elliptical wheel (2222).

3. The water spray device according to claim 2, characterized in that: The boosting assembly (22) further comprises a fixed slider (223), the fixed slider (223) being connected to the side wall of the second circulating water pipe (21), the fixed slider (223) being provided with a first through hole (2231), and the middle portion of the connecting rod (2223) being arranged in the first through hole (2231).

4. The water spray device according to claim 1, characterized in that: The second circulating water pipe (21) comprises a first water pipe (212) and a second water pipe (213) which are connected in sequence, the water inlet end of the first water pipe (212) is connected to the first circulating water pipe (12), the water retaining ring (211) is arranged between the first water pipe (212) and the second water pipe (213), the baffle (221) is arranged in the first water pipe (212), and the reset member (222) is arranged in the second water pipe (213).

5. The water spray device according to claim 4, characterized in that: The first water pipe (212) comprises a straight pipe section (2122), a curved pipe section (2123) and a tapered gradually expanding section (2124) which are connected in sequence; the water inlet end diameter of the tapered gradually expanding section (2124) is smaller than the water outlet end diameter; the water inlet end of the straight pipe section (2122) is connected to the first circulating water pipe (12); the water outlet end of the tapered gradually expanding section (2124) is connected to the outer ring of the water retaining ring (211); and the water inlet end of the second water pipe (213) is connected to the inner ring of the water retaining ring (211).

6. The water spray device according to claim 1, characterized in that: The second circulation pipeline (2) further comprises a high-pressure absorption container (24) filled with gas, a fourth through hole (2121) is provided on the side wall of the second circulation water pipe (21), and the inner cavity of the high-pressure absorption container (24) is connected to the inner cavity of the second circulation water pipe (21) through the fourth through hole (2121).

7. A dishwasher, characterized in that: include: A water spray device as claimed in any one of the preceding claims; as well as A dishwasher inner tank (3), the dishwasher inner tank (3) comprising a bottom plate (31) and side plates (32) both connected to the bottom plate (31), the bottom plate (31) and the upper parts of the side plates (32) are arranged to form a dishwashing cavity (35), the spray arm (11) is arranged in the dishwashing cavity (35), the bottom plate (31) and the lower parts of the side plates (32) are arranged to form an equipment cavity (36), the bottom plate (31) is provided with a second through hole (311), and the first circulating water pipe (12) is arranged in the second through hole (311).

8. The dishwasher according to claim 7, characterized in that The first circulation pipeline (1) also includes a circulation pump (13), the other end of the first circulation water pipe (12) is connected to the circulation pump (13), and the water inlet end of the circulation pump (13) is arranged at the lowest point of the dishwashing chamber (35).

9. The dishwasher according to claim 8, characterized in that The dishwasher inner tank (3) also includes a water collecting cup (33), the cup mouth of the water collecting cup (33) is sealed and connected to the bottom plate (31) at the second through hole (311), the water inlet end of the circulation pump (13) is arranged in the water collecting cup (33), and the water outlet end of the second circulation water pipe (21) is arranged in the water collecting cup (33).

10. The dishwasher according to claim 9, characterized in that A third through hole (331) is provided at the bottom of the side wall of the water collecting cup (33), and the water outlet end of the second circulating water pipe (21) is sealedly connected to the water collecting cup (33) at the third through hole (331).

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