Spraying device and dishwasher

Abstract

The application relates to the technical field of dishwashers, and discloses a spraying device and a dishwasher, wherein the spraying device comprises a supporting assembly, a spraying assembly and a guiding assembly; the spraying assembly comprises a main body and at least one set of telescopic arms; the main body is rotationally arranged on the supporting assembly; the telescopic arm comprises a fixed arm in communication with the main body and a sliding arm in sliding connection with the fixed arm; the main body, the fixed arm and the sliding arm are in communication with each other to form a flow channel; at least one spraying hole in communication with the flow channel is arranged on the sliding arm; the guiding assembly is arranged between the supporting assembly and the sliding arm; and the guiding assembly is used for guiding the sliding arm to run along a cam-shaped track. The sliding arm of the spraying device can run along the cam-shaped track under the guidance of the guiding assembly, so that the specific area in the chamber of the dishwasher can be intensively cleaned, and the cleaning effect of the area can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dishwashers, in particular to a spraying device and a dishwasher. BACKGROUND

[0002] A dishwasher is a device that sprays cold or hot water to dishes to remove dirt adhered to the dishes to clean the dishes. In existing dishwasher products, the spraying device sprays in a rotating manner, and the spraying track of the spraying arm is circular. Such a conventional spraying arm cannot achieve targeted strong washing on a specific area, and thus the cleaning effect on dishes that need to be strongly washed is poor. SUMMARY

[0003] The present application aims to provide a spraying device and a dishwasher, which solve the problem that the spraying track of the spraying device of the existing dishwasher is circular, and cannot achieve targeted strong washing on a specific area, and the cleaning effect on dishes that need to be strongly washed is poor.

[0004] To achieve this purpose, the present application adopts the following technical solutions:

[0005] The present application provides a spraying device, comprising:

[0006] a support assembly;

[0007] a spraying assembly comprising a main body and at least one set of telescopic arms, the main body being rotationally arranged on the support assembly, the telescopic arm comprising a fixed arm in communication with the main body and a sliding arm in sliding connection with the fixed arm, the main body, the fixed arm and the sliding arm being in communication with each other to form a flow channel, and at least one spraying hole in communication with the flow channel being arranged on the sliding arm; and

[0008] a guide assembly arranged between the support assembly and the sliding arm, the guide assembly being used to guide the sliding arm to run along a cam-shaped track.

[0009] The spraying device comprises a support assembly, a spraying assembly and a guide assembly. The spraying assembly comprises at least one set of telescopic arms, and the telescopic arm comprises a fixed arm and a sliding arm. The main body, the fixed arm and the sliding arm are in communication with each other to form a flow channel, and at least one spraying hole in communication with the flow channel is arranged on the sliding arm. The sliding arm can run along a cam-shaped track under the guidance of the guide assembly, so as to enhance the cleaning of a specific area in the chamber of the dishwasher and improve the cleaning effect of the area.

[0010] As a preferred solution of the above spraying device, the guide assembly comprises:

[0011] a track piece, one track piece being arranged on each sliding arm; and

[0012] A guide member is arranged on the support assembly, and a cam-shaped guide track is arranged on the guide member, and the guide member is used to guide the track member to run along the guide track, so as to drive the corresponding sliding arm to run along the cam-shaped track.

[0013] A cam-shaped guide track is arranged on the guide member, and the guide track is used to guide the track member to run along the guide track, so as to drive the corresponding sliding arm to run along the cam-shaped track.

[0014] As a preferred scheme of the spraying device, the guide member is an external gear disc, and a plurality of gear teeth on the external gear disc form the cam-shaped guide track.

[0015] The track member is a track wheel, and the track wheel is rotatably arranged on the sliding arm, and the track wheel is externally engaged with the external gear disc.

[0016] A first reset member is arranged between the track wheel and the support assembly, and is used to drive the sliding arm to reset.

[0017] The plurality of gear teeth on the external gear disc form the cam-shaped guide track, and the track wheel can be guided to run along the gear teeth of the external gear disc, so as to drive the sliding arm to run along the cam-shaped track; and the first reset member is arranged to drive the sliding arm to reset, so as to prevent the track wheel from being separated from the external gear disc.

[0018] As a preferred scheme of the spraying device, the guide member is an internal gear disc, and a plurality of gear teeth on the internal gear disc form the cam-shaped guide track.

[0019] The track member is a track wheel, and the track wheel is rotatably arranged on the sliding arm, and the track wheel is internally engaged with the internal gear disc.

[0020] The guide member is an internal gear disc, and a plurality of gear teeth on the internal gear disc form the cam-shaped guide track, and the track wheel is internally engaged with the internal gear disc, so that the sliding arm can run along the cam-shaped track; and the internal gear disc is internally engaged with the track wheel, so that the occupied space of the guide assembly is reduced.

[0021] As a preferred scheme of the spraying device, a second reset member is arranged between the track wheel and the support assembly, and is used to drive the sliding arm to reset.

[0022] The second reset member is used to drive the sliding arm to reset, that is, to drive the sliding arm to retract into the fixed arm.

[0023] As a preferred scheme of the spraying device, a cam-shaped slide is arranged on the guide member to form the guide track, and the track member extends into the slide and moves along the slide.

[0024] The cam-shaped sliding track on the guide member can guide the track member to drive the sliding arm to move along the cam-shaped track.

[0025] As a preferred solution of the spraying device, the track member comprises:

[0026] A first bearing is installed on the sliding arm.

[0027] A rotating shaft is installed on one end of the first bearing, and the rotating shaft can rotate relative to the sliding arm through the first bearing.

[0028] A second bearing is installed on the other end of the rotating shaft, and the second bearing is in rolling contact with the sliding track.

[0029] The track member is in rolling contact with the sliding track through the second bearing, so as to reduce the frictional resistance between the guide member and the track member, and make the track member move more smoothly.

[0030] As a preferred solution of the spraying device, the end of the sliding arm connected with the fixed arm is provided with a spray hole, which is a reinforced spraying hole, and the sliding arm is configured to be able to extend from or retract into the fixed arm to open or close the reinforced spraying hole.

[0031] The sliding arm can open or close the reinforced spraying hole when extending from or retracting into the fixed arm, and the arrangement of the reinforced spraying hole is beneficial to reinforcing cleaning of the corresponding area of the reinforced spraying hole and improving the cleaning effect of the area.

[0032] As a preferred solution of the spraying device, the end of the sliding arm connected with the fixed arm is provided with a spray hole, which is a driving spraying hole, and the sliding arm is configured to be able to extend from or retract into the fixed arm to open or close the driving spraying hole, and the water flow sprayed from the driving spraying hole can drive the spraying assembly to accelerate or decelerate rotation.

[0033] The arrangement of the driving spraying hole can open or close the driving spraying hole when the sliding arm extends from or retracts into the fixed arm, and the water flow sprayed from the driving spraying hole when the driving spraying hole is opened can drive the spraying assembly to accelerate or decelerate rotation, so as to control the time length of the water flow washing the tableware at different positions and enhance the cleaning effect of the specific area.

[0034] The application also provides a dishwasher comprising the spraying device.

[0035] The dishwasher can realize reinforced cleaning of the specific area in the chamber of the dishwasher through the spraying device, and improve the cleaning effect of the area.

[0036] The application has the following beneficial effects:

[0037] The spraying device comprises a supporting assembly, a spraying assembly and a guiding assembly, the spraying assembly comprises at least one set of telescopic arms, the telescopic arm comprises a fixed arm and a sliding arm, the main body, the fixed arm and the sliding arm are communicated with each other to form a flow channel, at least the sliding arm is provided with a spraying hole communicated with the flow channel, and the sliding arm can run along a cam-shaped track under the guidance of the guiding assembly, so that the specific area in the chamber of the dishwasher is subjected to enhanced cleaning, and the cleaning effect of the area is improved.

[0038] The dishwasher provided by the present application can realize enhanced cleaning of the specific area in the chamber of the dishwasher, and improve the cleaning effect of the area. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a structure schematic of the spraying device provided by the embodiment one of the present application Figure 1 ;

[0040] Figure 2 is a structure schematic of the spraying device provided by the embodiment one of the present application Figure 2 ;

[0041] Figure 3 is a structure schematic of the spraying device provided by the embodiment one of the present application Figure 1 ;

[0042] Figure 4 is a sectional view of the spraying device provided by the embodiment one of the present application

[0043] Figure 5 is a partial enlarged schematic view of A in Figure 4 ;

[0044] Figure 6 is a sectional view of another spraying device provided by the embodiment one of the present application

[0045] Figure 7 is a sectional view of still another spraying device provided by the embodiment one of the present application

[0046] Figure 8 is a structure schematic of the spraying device provided by the embodiment one of the present application in different states

[0047] Figure 9 is a structure schematic of the spraying device provided by the embodiment two of the present application

[0048] Figure 10 is a structure schematic of the spraying device provided by the embodiment two of the present application

[0049] In the drawings:

[0050] 100, spraying device

[0051] 1, support assembly; 11, clamping protrusion;

[0052] 2, spraying assembly; 20, spraying hole; 21, main body; 211, main body connecting part; 212, main body communicating part; 2111, clamping part;

[0053] 22, telescopic arm; 221, fixed arm; 2211, sliding groove; 222, sliding arm; 2221, sliding main body; 22211, clamping hole;

[0054] 2222, movable part; 22221, limiting groove; 22222, spraying hole; 223, sealing ring; 23, spraying arm;

[0055] 3, guiding assembly; 31, guiding piece; 32, track piece; 321, connecting part; 322, gear; 33, first reset piece;

[0056] 311, sliding groove; 323, first bearing; 324, rotating shaft; 325, second bearing. DETAILED DESCRIPTION

[0057] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be merely illustrative of the application and not in limitation thereof. It should also be understood that, for the purpose of clarity, only those structures of the application that are relevant to the present application have been shown in the drawings.

[0058] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and oblique above of the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and oblique below of the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0060] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0061] Embodiment one:

[0062] The dishwasher includes a chamber and a spraying device and a washing tank arranged in the chamber. The spraying device is arranged in the chamber and communicates with a water supply device (not shown in the figure). The washing tank is arranged above the spraying device and the dishes placed in the washing tank are cleaned by the spraying device. In the existing dishwasher products, the spraying mode of the spraying device is rotary spraying, and the trajectory of the spraying arm is circular. The conventional spraying arm cannot achieve strong washing for a specific area, and the cleaning effect of the dishes that need to be strongly washed is poor.

[0063] In order to solve the above problems, as shown in Figures 1-8 The spraying device 100 provided by the present embodiment includes a support assembly 1, a spraying assembly 2 and a guide assembly 3. The support assembly 1 is installed in the chamber. The spraying assembly 2 is rotatably installed on the support assembly 1. The spraying assembly 2 includes a main body 21 and at least one set of telescopic arms 22. The main body 21 is rotatably arranged on the support assembly 1. The main body 21 is provided with a water inlet. The water inlet communicates with the water supply device. Water enters the spraying assembly 2 through the water inlet. The telescopic arm 22 includes a fixed arm 221 communicating with the main body 21 and a sliding arm 222 slidably connected with the fixed arm 221. The main body 21, the fixed arm 221 and the sliding arm 222 communicate with each other to form a flow channel. At least one spraying hole 20 communicating with the flow channel is arranged on the sliding arm 222. The guide assembly 3 is arranged between the support assembly 1 and the sliding arm 222. The spraying assembly 2 rotates under the action of the spraying water flow force. The guide assembly 3 is used to guide the sliding arm 222 to extend out of or retract into the fixed arm 221, so as to run along the cam-shaped trajectory. The specific area in the chamber of the dishwasher is strongly cleaned through the spraying hole 20, and the cleaning effect of the area is improved.

[0064] Specifically, as shown in Figure 4 and Figure 5As shown, the main body 21 comprises a main body connecting portion 211 and a main body communicating portion 212, the main body connecting portion 211 is rotationally connected with the support assembly 1, one end of the main body connecting portion 211 is provided with a water inlet, the other end is communicated with the main body communicating portion 212, the fixed arm 221 of the telescopic arm 22 is arranged on the main body communicating portion 212 and communicated with the main body communicating portion 212. Water enters the flow channel through the water inlet, and then is sprayed through the spray hole 20, the force of the water flow sprayed by the spray hole 20 can make the spray assembly 2 rotate relative to the support assembly 1.

[0065] Further, the main body connecting portion 211 is a structure with both ends through, one end of the main body connecting portion 211 is the water inlet, the other end of the main body connecting portion 211 is communicated with the main body communicating portion 212. The outer diameter of the main body connecting portion 211 gradually increases from one end provided with the water inlet to the other end, so that the main body connecting portion 211 can be more easily installed in the support assembly 1. The main body connecting portion 211 is provided with a clamping portion 2111, which is an annular protrusion arranged on the outer surface of the main body connecting portion 211, the support assembly 1 is provided with a mounting hole, the inner wall of the mounting hole is provided with a clamping protrusion structure 11, the main body connecting portion 211 is inserted into the mounting hole, the clamping portion 2111 is clamped and matched with the clamping protrusion structure 11, which can prevent the main body 21 from being separated from the support assembly 1, but will not affect the rotation of the main body 21 relative to the support assembly 1. It should be noted that the rotational connection between the main body connecting portion 211 and the support assembly 1 is not limited to the above connection mode, as long as the rotational connection of the two can be realized.

[0066] As shown in Figure 4 , the inner side of the fixed arm 221 is provided with a sliding groove 2211, the sliding arm 222 is slidingly arranged in the sliding groove 2211, the sliding groove 2211 plays a guiding role in the extension and retraction of the sliding arm 222, the sliding arm 222 is extended from or retracted into the fixed arm 221 by moving along the sliding groove 2211, so that the telescopic arm 22 can automatically adjust the extension length according to the cam-shaped trajectory, and realize the operation along the cam-shaped trajectory.

[0067] Alternatively, as shown in Figure 2 and Figure 3As shown, the sliding arm 222 is provided with a spray hole 22222 at the end connected with the fixed arm 221, which is a reinforced spray hole. The sliding arm 222 can extend out of or retract into the fixed arm 221 to open or close the reinforced spray hole. Specifically, the sliding arm 222 moves in and out under the guidance of the guide assembly 3. During the process of the sliding arm 222 extending out of the fixed arm 221, the reinforced spray hole is gradually opened to provide a larger cleaning area, and the reinforced spray hole is beneficial to the reinforced cleaning of the corresponding area of the reinforced spray hole and improves the cleaning effect of the area. It should be noted that the reinforced spray hole can be provided at the end of the sliding arm 222 connected with the fixed arm 221, and the specific setting position, angle and setting direction of the reinforced spray hole are not limited here, which can be set according to the requirements.

[0068] In other embodiments, the spray hole 22222 provided on the sliding arm 222 is a driving spray hole. The sliding arm 222 moves in and out under the guidance of the guide assembly 3. During the process of the sliding arm 222 extending out of the fixed arm 221, the driving spray hole is gradually opened. The driving spray hole is designed to have a specific direction, so that the water flow sprayed by the driving spray hole has a force to drive the spraying assembly to rotate forward or reversely, thereby accelerating or decelerating the rotation of the spraying assembly 2, and then controlling the time length of the spraying water flow to extend the time length of the area that needs to be washed intensively according to the requirements, thereby enhancing the cleaning effect of the specific area.

[0069] Specifically, by providing the driving spray hole that can be opened and closed in the forward or reverse direction on the sliding arm 222, the variable speed rotation of the spraying assembly 2 is realized. When the telescopic arm 22 is in the extended state, the driving spray hole is opened. When the driving direction of the water flow sprayed by the driving spray hole is the same as the turning direction of the spraying assembly 2, the telescopic arm 22 can be accelerated at this position; when the driving direction of the water flow sprayed by the driving spray hole is opposite to the turning direction of the spraying assembly 2, the telescopic arm 22 can be decelerated at this position. In this way, the time length of the water flow washing the tableware at different positions can be controlled. The longer the washing time at a certain position is, the better the cleaning effect at the position is, so that the reinforced cleaning of the specific position can be realized.

[0070] Optionally, the driving spray hole is oriented towards either side of the sliding arm 222, so that the water flow sprayed by the driving spray hole is in the same direction or opposite direction of the rotation of the spray assembly 2. Of course, the orientation of the driving spray hole is not limited to being oriented towards either side of the sliding arm 222, as long as the water flow sprayed by the driving spray hole has a component force that drives the spray assembly 2 to rotate in the forward direction or the reverse direction, and the specific orientation of the driving spray hole can be designed according to requirements. The driving spray hole can be arranged at the top surface of the sliding arm 222, or at any side surface of the sliding arm 222, or at the bottom surface of the sliding arm 222. When the driving spray hole is arranged at the bottom surface of the sliding arm 222, if the driving spray hole is inclined towards the center of the spray assembly 2, it can also have the effect of gathering the residues in the chamber, thereby achieving the effect of collecting residues.

[0071] Further, as shown in Figure 2 , the sliding arm 222 comprises a sliding body 2221 and a movable part 2222, the sliding body 2221 is spaced apart along its length direction and is provided with a plurality of spray holes 20, the number, size and inclination angle of the spray holes 20 can be set according to requirements to enhance the washing effect. One end of the movable part 2222 is connected to the sliding body 2221, and the other end is slidingly connected to the sliding groove 2211 to extend out of or retract into the fixed arm 221, as shown in Figure 3 , a spray hole 22222 is arranged on the movable part 2222. The sliding arm 222 is slidingly connected to the fixed arm 221 through the movable part 2222, and water is sprayed through the plurality of spray holes 20 on the sliding body 2221, so that the top corner position of the chamber can be cleaned, and the cleaning effect is improved. The spray hole 22222 can be used to achieve enhanced flushing of specific areas.

[0072] Optionally, as shown in Figures 2-4 , one end of the movable part 2222 is fixedly connected to the sliding body 2221, and the movable part 2222 and the sliding body 2221 are an integral structure, and the end of the movable part 2222 slidingly connected to the fixed arm 221 is detachably connected to the fixed arm 221. Specifically, the end of the movable part 2222 slidingly connected to the fixed arm 221 is provided with a limiting groove 22221, and a sealing ring 223 is sleeved in the limiting groove 22221, the limiting groove 22221 is used for limiting the sealing ring 223, and the sealing ring 223 seals the gap between the sliding arm 222 and the fixed arm 221 to prevent water from flowing out of the gap. Preferably, the sealing ring 223 is made of soft material, and the sealing ring 223 can be made of rubber material and has a certain elasticity, so that a better sealing effect can be achieved.

[0073] Optionally, the movable part 2222 and the sliding body 2221 are not designed as an integral structure, as shown in Figure 6As shown, the movable part 2222 is designed separately from the sliding body 2221, and the movable part 2222 is a separate component to reduce the number of parts of the sliding arm 222. The two ends of the movable part 2222 can be detachably connected through the cooperation of the limiting groove 22221 and the sealing ring 223.

[0074] As shown in Figures 2-4 and Figure 6 The guide assembly 3 includes a track piece 32 and a guide piece 31, the track piece 32 is arranged on the sliding arm 222, and the guide piece 31 is arranged on the support assembly 1. The guide piece 31 is provided with a cam-shaped guide track, and the guide piece 31 is used to guide the track piece 32 to run along the guide track, so as to drive the sliding arm 222 to run along the cam-shaped track.

[0075] Specifically, in the embodiment, the guide piece 31 is an external gear disc, a plurality of gear teeth on the external gear disc form a cam-shaped guide track, and the track piece 32 is a track wheel. The track wheel is rotatably installed on the sliding arm 222, and the track wheel is externally meshed with the external gear disc. The track wheel runs along the gear teeth of the external gear disc, and in the running process, it drives the sliding arm 222 to extend out of or retract into the fixed arm 221, thereby forming a cam-shaped track (see Figure 1 and Figure 2 ), so as to realize the opening and closing of the injection hole 22222.

[0076] Further, a first reset piece 33 is arranged between the sliding arm 222 and the support assembly 1. The first reset piece 33 can pull the sliding arm 222 to reset the sliding arm 222, and can also prevent the track piece 32 from being separated from the guide piece 31. In the embodiment, the first reset piece 33 is a spring, one end of the spring is installed on the track wheel (but does not affect the rotation of the track wheel), and the other end of the spring is installed on the support assembly 1. The first reset piece 33 is not limited to be a spring, as shown in Figure 7 The first reset piece 33 is a magnetic attraction piece, that is, a male magnetic attraction piece is arranged on the sliding arm 222 and a female magnetic attraction piece is arranged on the fixed arm 221, so that the sliding arm 222 and the fixed arm 221 always maintain an attractive state, thereby providing a driving force for the retraction of the sliding arm 222.

[0077] Further, the track wheel includes a connecting part 321 and a gear 322, one end of the spring is sleeved on the connecting part 321, one end of the connecting part 321 is provided with a clamping head, and the sliding body 2221 is provided with a clamping hole 22211 (see Figure 7 ), the clamping head extends into the clamping hole 22211 and cannot be pulled out, and the connecting part 321 can rotate relative to the sliding arm 222. The gear 322 is connected to the other end of the connecting part 321, and the track wheel is meshed with the external gear disc. The track wheel is convenient for installing the gear 322 through the connecting part 321, so as to realize the rotation of the gear 322 relative to the sliding arm 222.

[0078] As shown in Figure 8 The sliding arm 222 has two states of extending or retracting relative to the fixed arm 221 during operation. When the track wheel runs to the top position of the convex position of the guide 31, the telescopic arm 22 is in the maximum extended state. When the track wheel runs to the non-convex region of the guide 31, the sliding arm 222 is in the retracted state. The driving of the extension of the sliding arm 222 is derived from the rotation of the spray arm assembly 2 driven by the water flow. The retraction of the sliding arm 222 is maintained by the spring. The spring always maintains the extension state to pull the sliding arm 222 and the fixed arm 221. The spray hole 22222 on the sliding arm 222 is in the closed state when the sliding arm 222 is in the retracted state. The spray hole 22222 is gradually opened during the extension of the sliding arm 222 to improve the cleaning effect on the specific area. The retraction of the sliding arm 222 is maintained by the spring, which always maintains the extension state to reset the telescopic arm 22.

[0079] Optionally, the spray device 100 can only include the telescopic arm 22. A group of telescopic arms 22 can be provided in the spray device 100. The spray device 100 can also include two groups, three groups, four groups or more groups of telescopic arms 22. When two groups of telescopic arms 22 are provided, the included angle between the two groups of telescopic arms 22 is 180° to ensure the stability of the operation of the spray assembly 2. The sliding arm 222 of each group of telescopic arms 22 is engaged with the outer gear plate through a group of track wheels. When the spray device 100 includes three groups of telescopic arms 22, the included angle between any two adjacent groups of telescopic arms 22 in the three groups of telescopic arms 22 is 120°. The sliding arm 222 of each group of telescopic arms 22 is engaged with the outer gear plate through a group of track wheels. When the spray device 100 includes four groups of telescopic arms 22, the included angle between any two adjacent groups of telescopic arms 22 in the four groups of telescopic arms 22 is 90°. The sliding arm 222 of each group of telescopic arms 22 is engaged with the outer gear plate through a group of track wheels. Of course, the number of groups of telescopic arms 22 is not limited to the above-mentioned number of groups, and more groups, such as five groups, six groups, etc., can also be included. The included angle between any two groups of telescopic arms 22 in the multiple groups of telescopic arms 22 is equal to ensure the stability of the operation of the spray assembly 2.

[0080] As shown in Figure 2 and Figure 3 The spray device 100 also includes at least one group of spray arms 23, which are connected to the main body 21. The spray arm 23 is provided with a plurality of spray holes 20 arranged along the length direction thereof. The water flow is sprayed out through the spray hole 20. Under the action of the water flow, the running track of the spray arm 23 is circular. Preferably, the spray arm 23 and the main body 21 are of an integral structure.

[0081] In this embodiment, the spraying device 100 comprises a set of telescopic arms 22 and two sets of spraying arms 23, the spraying arms 23 are connected with the main body 21, the angle between any two adjacent ones of the telescopic arms 22 and the two sets of spraying arms 23 is equal, that is, the angle between any two of them is 120°, a plurality of spraying holes 20 are arranged on the spraying arms 23 along the length direction thereof, the spraying arms 23 rotate around the support assembly 1, and the running track is circular.

[0082] Alternatively, the spraying arms 23 are not limited to two sets, the spraying arms 23 can comprise one set, the spraying assembly 2 comprises one set of telescopic arms 22 and one set of spraying arms 23, and the angle between the telescopic arms 22 and the spraying arms 23 is 180 degrees. The spraying assembly 2 can also comprise one set of telescopic arms 22 and three sets of spraying arms 23, and the angle between any two adjacent sets is 90°. Of course, in other embodiments, the number of sets of telescopic arms 22 in the spraying assembly 2 is not limited to one set, and can also be multiple sets, and the number of sets of spraying arms 23 is also not limited to the above examples, and the specific number can be set according to requirements.

[0083] Embodiment two

[0084] The spraying device 100 of this embodiment is different from that of embodiment one in the structure of the guide member 31. In this embodiment, the guide member 31 is an internal gear disc, and a plurality of gear teeth on the internal gear disc form a cam-shaped guide track; the track member 32 is a track wheel, which is rotatably installed on the sliding arm 222, and the track wheel is internally meshed with the internal gear disc.

[0085] The guide assembly 3 can realize stable transmission. Under the driving force of the water flow, the spraying assembly 2 rotates in a specific direction, and the centrifugal force generated during rotation can always make the track wheel rotate close to the internal gear disc. The gear 322 is internally meshed with the internal gear disc, which reduces the occupied space of the guide assembly 3, and is conducive to adapting to narrow space dishwashers.

[0086] Preferably, a second reset member 34 is arranged between the track wheel and the support assembly 1, for driving the sliding arm 222 to reset. The second reset member 34 has the same structure and connection mode as the first reset member 33, and can also be a spring or a magnetic member, and the specific structure is not described here.

[0087] It should be noted that in the internal meshing scheme of the internal gear disc and the track wheel, the second reset member 34 can not be arranged. When the second reset member 34 is not arranged, under the driving force of the water flow, the spraying assembly 2 rotates in a specific direction, and the centrifugal force generated during rotation can always make the track wheel rotate close to the internal gear disc.

[0088] This embodiment has the same other structures as embodiment one, which will not be described here.

[0089] Embodiment three:

[0090] The embodiment provides a spraying device 100, and the spraying device 100 of the embodiment is different from the spraying device 100 of the first embodiment in that the structure of the guide assembly 3 is different; the guide assembly 3 in the first embodiment is in the meshing mode of a gear disc and a track wheel, and in the embodiment, as shown in Figure 9 and Figure 10 The guide piece 31 is provided with a cam-shaped sliding channel 311, the sliding channel 311 is a cam-shaped annular groove arranged on the guide piece 31, so as to form a guide track, and the track piece 32 extends into the cam-shaped sliding channel 311 and moves along the cam-shaped sliding channel 311. The cam-shaped sliding channel 311 on the guide piece 31 can guide the track piece 32, so that the track piece 32 drives the sliding arm 222 to run along the cam-shaped track. The guide assembly 3 has a relatively simple structure and is easy to manufacture.

[0091] Further, the track piece 32 comprises a first bearing 323, a rotating shaft 324 and a second bearing 325, the first bearing 323 is installed on the sliding arm 222, one end of the rotating shaft 324 is installed on the first bearing 323, the rotating shaft 324 can rotate relative to the sliding arm 222 through the first bearing 323, and the second bearing 325 is installed on the other end of the rotating shaft 324 and is in rolling contact with the sliding channel 311. The rotating shaft 324 can rotate relative to the sliding arm 222 through the first bearing 323, and the second bearing 325 is in rolling contact with the sliding channel 311, so as to reduce the frictional resistance between the guide piece 31 and the track piece 32 and make the track piece 32 run more smoothly. The structure of the track piece 32 is not limited to the above structure, and can also be other structures, as long as the track piece 32 can move along the sliding channel 311 and drive the sliding arm 222 to stretch and retract.

[0092] The embodiment is the same as the other structures of the first embodiment, and details are not described herein.

[0093] Embodiment Four

[0094] The embodiment provides a dishwasher comprising the spraying device 100 in the first embodiment, the second embodiment or the third embodiment, and the dishwasher can strengthen cleaning of a specific area in a cavity of the dishwasher through the spraying device 100, and improve the cleaning effect of the area.

[0095] The connection relationship between the spraying device 100 and other structures of the dishwasher is prior art, and details are not described herein.

[0096] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A spray device, characterized in that The utility model relates to a shower device, comprising: a support assembly (1); a spray assembly (2) comprising a main body (21) and at least one set of telescopic arms (22), the main body (21) is rotationally arranged on the support assembly (1), the telescopic arm (22) comprises a fixed arm (221) communicated with the main body (21) and a sliding arm (222) slidably connected with the fixed arm (221), the main body (21), the fixed arm (221) and the sliding arm (222) are communicated to form a flow channel, at least the sliding arm (222) is provided with a spray hole (20) communicated with the flow channel, the sliding arm (222) is provided with a spray hole (22222) at one end of the sliding arm (222) and the fixed arm (221) is slidably connected, the spray hole (22222) is a switchable forward or reverse driving spray hole, the sliding arm (222) is configured to be able to extend or retract in the fixed arm (221), to open or close the driving spray hole, the water flow sprayed by the driving spray hole can drive the spray assembly (2) to accelerate or decelerate rotation, when the driving direction of the water flow sprayed by the driving spray hole is the same as the turning direction of the spray assembly (2), the telescopic arm (22) accelerates through at the position; when the driving direction of the water flow sprayed by the driving spray hole is opposite to the turning direction of the spray assembly (2), the telescopic arm (22) decelerates through at the position; and a guide assembly (3) arranged between the support assembly (1) and the sliding arm (222), the guide assembly (3) is used for guiding the sliding arm (222) to run along a cam-shaped track.

2. The spray device of claim 1, wherein The guide assembly (3) comprises: a track piece (32), one track piece (32) is arranged on each sliding arm (222); and a guide piece (31), the guide piece (31) is arranged on the support assembly (1), the guide piece (31) is provided with a cam-shaped guide track, the guide piece (31) is used for guiding the track piece (32) to run along the guide track, so as to drive the corresponding sliding arm (222) to run along a cam-shaped track.

3. The spray device of claim 2, wherein The guide piece (31) is an external gear disc, a plurality of gear teeth on the external gear disc form the cam-shaped guide track; The track piece (32) is a track wheel, the track wheel is rotationally installed on the sliding arm (222), and the track wheel is externally meshed with the external gear disc; A first reset piece (33) is arranged between the track wheel and the support assembly (1) and is used for driving the sliding arm (222) to reset.

4. The spray device of claim 2, wherein The guide piece (31) is an internal gear disc, a plurality of gear teeth on the internal gear disc form the cam-shaped guide track; The track piece (32) is a track wheel, the track wheel is rotationally installed on the sliding arm (222), and the track wheel is internally meshed with the internal gear disc.

5. The shower assembly of claim 4, wherein, A second reset piece is arranged between the track wheel and the support assembly (1) and is used for driving the sliding arm (222) to reset.

6. The spray device of claim 2, wherein A cam-shaped slide (311) is arranged on the guide (31) to form the guide track, and the track member (32) extends into the slide (311) and moves along the slide (311).

7. The shower assembly of claim 6, wherein, The track member (32) comprises: a first bearing (323) mounted on the slide arm (222); a rotating shaft (324) having one end mounted on the first bearing (323), the rotating shaft (324) being capable of rotating relative to the slide arm (222) through the first bearing (323); and a second bearing (325) mounted on the other end of the rotating shaft (324), the second bearing (325) being in rolling contact with the slide (311).

8. A dishwasher, characterized in that A shower device comprising the shower device of any one of claims 1-7.

Images