Spray arm, shower system and dishwasher

Abstract

The application discloses a spray arm, a spraying system and a dishwasher. The spray arm comprises a spray arm body, a first nozzle, a sliding plate and a driving mechanism. The spray arm body is adapted to rotate around a first rotation axis, and the spray arm body is provided with a water flow channel. The first nozzle is arranged on the spray arm body and is movable relative to the spray arm body. The first nozzle is in communication with the water flow channel. The sliding plate is arranged on the spray arm body and is movable back and forth along a first direction relative to the spray arm body. The sliding plate is coupled with the first nozzle. The driving mechanism is adapted to drive the sliding plate to move back and forth along the first direction when the spray arm body rotates. The sliding plate is adapted to drive the first nozzle to move when the sliding plate moves back and forth along the first direction, so as to change the orientation of the first nozzle relative to the spray arm body. When the spray arm body rotates, the first nozzle is driven by the driving mechanism to move, so that the first nozzle moves to change the orientation relative to the spray arm body. In this way, the water flow sprayed from the first nozzle can wash dishes from different angles, which helps to reduce the washing dead angle and improve the washing effect.

Description

Technical Field

[0001] This application relates to the field of dishwashers, and more particularly to a spray arm, a spray system, and a dishwasher. Background Technology

[0002] The spray arm is a key component of the dishwasher's spray system. When the dishwasher is working, water is sprayed out through the rotating spray arm and directed at the dishes, rinsing their surfaces. The cleaning effect of the dishes is closely related to the design of the spray arm, and the cleaning effect of the current spray arm still needs improvement. Summary of the Invention

[0003] This application aims to at least partially solve one of the technical problems in the related art. To this end, this application proposes a spray arm.

[0004] To achieve the above objectives, this application discloses a spray arm, the spray arm comprising:

[0005] The spray arm body is adapted to rotate around a first rotation axis, and the spray arm body is provided with a water flow channel;

[0006] A first nozzle is disposed on the spray arm body and is movable relative to the spray arm body, and the first nozzle is connected to the water flow channel;

[0007] A sliding plate, disposed on the spray arm body and reciprocating relative to the spray arm body along a first direction, the sliding plate being fitted onto the surface of the spray arm body and coupled to the first nozzle; and

[0008] A drive mechanism is adapted to drive the slide plate to reciprocate along the first direction when the spray arm body rotates. The slide plate is adapted to drive the first nozzle to move when reciprocating along the first direction, so as to change the orientation of the first nozzle relative to the spray arm body.

[0009] In some embodiments of this application, the slide plate is adapted to drive the first nozzle to oscillate back and forth when it moves back and forth along the first direction.

[0010] In some embodiments of this application, the slide plate is provided with a locking hole, and the first nozzle is at least partially inserted through the locking hole to couple the slide plate and the first nozzle.

[0011] In some embodiments of this application, the spray arm body is provided with a connector communicating with the water flow channel, and one of the connector and the first nozzle is provided with a spherical cavity to enclose the other, and the other of the connector and the first nozzle is provided with a spherical surface.

[0012] In some embodiments of this application, one of the slide plate and the spray arm body is provided with a sliding protrusion, which is adapted to slide against the other of the slide plate and the spray arm body.

[0013] In some embodiments of this application, the spray arm body is provided with a limiting part, the slide plate is provided with a limiting engagement part, the limiting part and the limiting engagement part restrict each other and can move relative to each other along the first direction.

[0014] In some embodiments of this application, one of the limiting part and the limiting mating part is a limiting buckle and the other is a limiting groove, the limiting buckle is fastened to the limiting groove, and the limiting groove extends along the first direction.

[0015] In some embodiments of this application, the spray arm body is provided with a plurality of first nozzles along the extension direction of the spray arm body, and the slide plate extends along the extension direction of the spray arm body, the slide plate being adapted to drive the first nozzles on opposite sides of the first rotation axis to move.

[0016] In some embodiments of this application, the skateboard is a one-piece molded part.

[0017] In some embodiments of this application, the driving mechanism includes:

[0018] The first gear is coaxial with the spray arm body, and the spray arm body can rotate relative to the first gear to rotate on its own axis.

[0019] The second gear is rotatably disposed on the spray arm body, and the second gear meshes with the first gear so that when the spray arm body rotates, the second gear revolves around the first rotation axis and rotates around the second rotation axis. The second gear is adapted to drive the slide plate to reciprocate along the first direction when rotating.

[0020] In some embodiments of this application, the second gear is provided with a protruding rod, which is offset from the second rotation axis. The slide plate is provided with a socket, and the protruding rod is inserted into the socket. The socket extends along a second direction, and an angle is formed between the second direction and the first direction. The angle is greater than 0°, so that when the second gear rotates, it drives the slide plate to reciprocate along the first direction.

[0021] In some embodiments of this application, the second direction is perpendicular to the first direction.

[0022] In some embodiments of this application, the spray arm body is formed with a rotating column, the second gear is provided with a shaft hole, the second gear is rotatably mounted on the rotating column through the shaft hole, and the slide plate and the spray arm body clamp the second gear.

[0023] In some embodiments of this application, the slide plate is provided with a clearance cavity, and the first gear is located in the clearance cavity. In some embodiments of this application, the spray arm further includes a drive hole, which is disposed in the spray arm body and communicates with the water flow channel, and the orientation of the drive hole relative to the spray arm body is constant.

[0024] In some embodiments of this application, the first direction and the extension direction of the spray arm body are in the same direction.

[0025] A second aspect of this application discloses a spray system comprising the aforementioned spray arm.

[0026] In some embodiments of this application, the spray system further includes a water supply pipe, the spray arm body is rotatably connected to the water supply pipe so as to be able to rotate, the water flow channel is connected to the water supply pipe, and the first gear of the spray arm is fixedly connected to the water supply pipe.

[0027] In some embodiments of this application, the water supply pipe has an outlet end, the spray arm body has an inlet end, the spray arm further includes a locking block, the first gear is sleeved on the inlet end and the first gear and the inlet end are rotatable relative to each other, the locking block is inserted into the inlet end and fixedly connected to the inlet end to limit the axial movement of the first gear, the outlet end is inserted into the locking block to connect the water supply pipe and the water flow channel, and the outlet end is fixedly connected to the first gear.

[0028] A third aspect of this application discloses a dishwasher that includes the spray system described above.

[0029] In the technical solution of this application, the first nozzle is designed to be movable, and by configuring a drive mechanism, the first nozzle is driven by the drive mechanism when the spray arm body rotates, so that the first nozzle moves and changes the orientation of the first nozzle relative to the spray arm body. This allows the water jet from the first nozzle to rinse the tableware from different angles, which helps to reduce washing dead corners and improve the washing effect.

[0030] Other advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of this application. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other designs can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the spray system in some embodiments;

[0033] Figure 2 for Figure 1 Enlarged view marked A in the middle;

[0034] Figure 3 for Figure 1 Enlarged view marked B in the middle;

[0035] Figure 4 Top view of the sprinkler system in some embodiments;

[0036] Figure 5 for Figure 4 Enlarged view marked C;

[0037] Figure 6 for Figure 4 Sectional view of AA;

[0038] Figure 7 for Figure 6 Enlarged view marked with D in the middle;

[0039] Figure 8 for Figure 6 Enlarged view marked E in the middle;

[0040] Figure 9 This is an exploded view of the spray system in some embodiments;

[0041] Figure 10 for Figure 9 Enlarged view marked F in the middle;

[0042] Figure 11 for Figure 9 Enlarged view marked G in the middle;

[0043] Figure 12 This is a schematic diagram of the engagement between the second gear and the cam in some embodiments;

[0044] Figure 13 This is a schematic diagram of the first nozzle in some embodiments;

[0045] Figure 14 This is a schematic diagram of the first nozzle from another perspective in some embodiments.

[0046] Explanation of icon numbers:

[0047] Spray arm 1000, spray arm body 1100, connector 1110, spherical surface 1111, limiting part / limiting buckle 1120, rotating column 1130, sliding protrusion 1140, water inlet end 1150, water flow channel 1160, first nozzle 1210, ball cavity 1211, drive hole 1220, sliding plate 1300, locking hole 1310, limiting mating part / limiting groove 1320, insertion hole 1330, clearance cavity 1340, drive mechanism 1400, first gear 1410, second gear 1420, protruding rod 1421, shaft hole 1422, locking block 1510, gasket 1520, first rotating axis 1610, second rotating axis 1620, water supply pipe 2000, water outlet end 2100, spray system 3000.

[0048] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0050] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0051] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0053] The first aspect of this application discloses a spray arm 1000, combined with... Figures 1 to 9 As shown, in some embodiments, the spray arm 1000 includes a spray arm body 1100, a first nozzle 1210, a slide plate 1300, and a drive mechanism 1400. The spray arm body 1100 is adapted to rotate about a first rotation axis 1610, and the spray arm body 1100 is provided with a water flow channel 1160. The first nozzle 1210 is disposed on the spray arm body 1100 and is movable relative to the spray arm body 1100. The first nozzle 1210 communicates with the water flow channel 1160. 1300 is disposed on the spray arm body 1100 and the slide plate 1300 can reciprocate relative to the spray arm body 1100 along a first direction. The slide plate 1300 is adapted to couple with the first nozzle 1210. The drive mechanism 1400 is adapted to drive the slide plate 1300 to reciprocate along the first direction when the spray arm body 1100 rotates. The slide plate 1300 is adapted to drive the first nozzle 1210 to move when it reciprocates along the first direction, thereby changing the orientation of the first nozzle 1210 relative to the spray arm body 1100.

[0054] In this embodiment, the first nozzle 1210 is designed to be movable, and by configuring a drive mechanism 1400, when the spray arm body 1100 rotates, the drive mechanism 1400 drives the first nozzle 1210, so that the first nozzle 1210 moves relative to the spray arm body, thereby changing the orientation of the first nozzle 1210 relative to the spray arm body 1100. This allows the water jet from the first nozzle 1210 to rinse the tableware from different angles, which helps to reduce washing dead corners and improve the washing effect.

[0055] The following section will provide a detailed description of the spray arm 1000 in conjunction with a dishwasher. The dishwasher includes a washing chamber, a dish rack, a spray system 3000, and a circulation system. The dish rack can be removed and placed into the washing chamber to hold tableware. The spray system 3000 includes the spray arm 1000, which can be located above or below the dish rack. The circulation system includes a circulation pump. When the dishwasher is operating, a certain amount of water is first introduced into the washing chamber. The circulation pump draws water from the washing chamber and pumps it to the spray arm 1000. The water flow from the spray arm 1000 causes it to rotate, spraying water towards the tableware to rinse it. The water flow from the spray arm 1000 falls back to the bottom of the washing chamber and is drawn back in by the circulation pump, thus forming a washing cycle to clean the tableware.

[0056] In order to improve the cleaning effect of the spray arm 1000 on tableware, this embodiment improves the spray arm 1000, which includes a spray arm body 1100, a first nozzle 1210, a slide plate 1300 and a drive mechanism 1400.

[0057] The rotation of the spray arm 1000 is mainly manifested in the rotation of the spray arm body 1100. The spray arm body 1100 can rotate around the first rotation axis 1610. Similar to related technologies, the rotation of the spray arm body 1100 can be achieved by providing torque through the jet of water. For example, the spray arm 1000 also includes a drive hole 1220, which is located in the spray arm body 1100 and communicates with the water flow channel 1160 of the spray arm body 1100. The orientation of the drive hole 1220 relative to the spray arm body 1100 is constant (i.e., the relative position of the drive hole 1220 and the spray arm body 1100 does not change, such as...). This ensures that the orientation of the drive hole 1220 relative to the spray arm body 1100 remains unchanged. Water pumped by the circulation pump is delivered to the water flow channel 1160 and can then be sprayed out from the drive hole 1220. The orientation of the drive hole 1220 forms a certain angle with the spray arm body 1100. When the water flows out from the drive hole 1220, it can generate torque on the spray arm body 1100, thus driving the spray arm body 1100 to rotate around the first rotation axis 1610. In order to generate a larger torque, the drive hole 1220 used to generate torque can be set at a position on the spray arm body 1100 away from the first rotation axis 1610. It can be understood that in addition to providing torque, the drive hole 1220 can also achieve the rinsing of tableware. Alternatively, some of the drive holes 1220 can be mainly used to provide torque, while others can be mainly used to rinse tableware.

[0058] The first nozzle 1210 is disposed on the spray arm body 1100, so that the first nozzle 1210 can rotate with the rotation of the spray arm body 1100. The first nozzle is designed to be movable relative to the spray arm body 1100. The movement of the first nozzle 1210 relative to the spray arm body 1100 includes, but is not limited to, rotation, swinging or reciprocating movement. As long as the position of the first nozzle 1210 relative to the spray arm body 1100 changes, it can be regarded as the first nozzle 1210 moving relative to the spray arm body 1100. When the first nozzle 1210 moves relative to the spray arm body 1100, the orientation of the first nozzle 1210 can change relative to the spray arm body 1100. The movement of the first nozzle 1210 also needs to be coordinated with the slide plate 1300 and the drive mechanism 1400.

[0059] The slide plate 1300 is mounted on the spray arm body 1100, allowing it to rotate with the spray arm body 1100's rotation. The slide plate 1300 is designed to reciprocate relative to the spray arm body 1100 along a first direction. That is, the slide plate 1300 is mounted on the spray arm body 1100, but it is not fixed relative to the spray arm body 1100; rather, it is movable relative to the spray arm body 1100. The movement of the slide plate 1300 relative to the spray arm body 1100 manifests as its reciprocating movement along the first direction. It can be understood that the first direction can be the extension direction of the spray arm body 1100, which is the length direction of the spray arm body 1100. Along the extension direction of the spray arm body 1100, the spray arm body 1100 has a long and narrow structure. (See [reference needed]). Figure 4 The orientation shown is with the spray arm body 1100 in a stationary state as a reference, and the extension direction of the spray arm body 1100 is left-right. Therefore, the first direction can be left-right. Of course, the first direction can also be other directions, which will not be listed here. Since the spray arm body 1100 has a certain length, aligning the first direction with the extension direction of the spray arm body 1100 makes it easier for the spray arm body 1100 to support the slide plate 1300, and the slide plate 1300 also has more space for reciprocating movement. The slide plate 1300 is coupled to the first nozzle 1210. This coupling means that the reciprocating movement of the slide plate 1300 can act on the first nozzle 1210, causing the first nozzle 1210 to move accordingly and change its orientation relative to the spray arm body 1100.

[0060] The force required for the slide plate 1300 to reciprocate along the first direction is provided by the drive mechanism 1400. When the spray arm body 1100 rotates, the drive mechanism 1400 acts on the slide plate 1300, thereby driving the slide plate 1300 to reciprocate along the first direction. Since the slide plate 1300 is set on the spray arm body 1100, the slide plate 1300 reciprocates synchronously along the first direction while following the rotation of the spray arm body 1100. The reciprocating movement of the slide plate 1300 along the first direction acts on the first nozzle 1210, thereby causing the first nozzle 1210 to move relative to the spray arm body 1100. The movement of the first nozzle 1210 relative to the spray arm body 1100 means that the orientation of the first nozzle 1210 relative to the spray arm body 1100 changes. Since the first nozzle 1210 is set on the spray arm body 1100, it can change its orientation synchronously while following the rotation of the spray arm body 1100. In this way, the water jets sprayed by the first nozzle 1210 can rinse the tableware from different angles, which helps to reduce washing dead corners and improve the washing effect.

[0061] Optionally, in some embodiments, the slide plate 1300 is adapted to drive the first nozzle 1210 to swing back and forth when it reciprocates along the first direction. That is, the slide plate 1300 drives the first nozzle 1210, and the specific form of the movement of the first nozzle 1210 is that the first nozzle 1210 swings relative to the spray arm body 1100. Since the movement of the slide plate 1300 relative to the spray arm body 1100 is a reciprocating movement, it is beneficial to simplify the coupling structure between the slide plate 1300 and the first nozzle 1210 by driving the first nozzle 1210 to also reciprocate. There is no need to set up a more complex structure to convert the reciprocating movement into other forms of movement. When the first nozzle 1210 swings back and forth, the water flow sprayed by the first nozzle 1210 also swings back and forth, thereby changing the spray angle of the water flow and improving the cleaning effect.

[0062] For example, combining Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the slide plate 1300 is provided with a locking hole 1310 (the specific type of the hole can be selected according to actual needs, either a through hole structure or a blind hole structure, the same below). The first nozzle 1210 is at least partially inserted through the locking hole 1310, thus achieving coupling between the slide plate 1300 and the first nozzle 1210. Since the first nozzle 1210 is at least partially inserted through the locking hole 1310, the first nozzle 1210 can be exposed relative to the slide plate 1300, thereby spraying water without being blocked by the slide plate 1300. When the slide plate 1300 reciprocates along the first direction, it acts on the first nozzle 1210 through the locking hole 1310, thereby driving the first nozzle 1210 to oscillate back and forth. See also Figure 6 and Figure 7The orientation shown is with the spray arm body 1100 in a stationary state as a reference. The first direction is the left-right direction. When the slide plate 1300 moves along the first direction to the left, the slide plate 1300 pushes the first nozzle 1210 to swing to the left. When the slide plate 1300 moves along the first direction to the right, the slide plate 1300 pushes the first nozzle 1210 to swing to the right. With the spray arm body 1100 in a rotating state as a reference, and the first direction being in the same direction as the extension direction of the spray arm body 1100, the slide plate 1300 reciprocates along the first direction, thereby allowing the first nozzle 1210 to swing away from the first rotation axis 1610 and swing towards the first rotation axis 1610.

[0063] The movement of the first nozzle 1210 can be achieved in the following manner, combined with Figures 6 to 11 as well as Figure 13 , Figure 14 As shown, in some embodiments, the spray arm body 1100 is provided with a connector 1110 communicating with the water flow channel 1160. One of the connector 1110 and the first nozzle 1210 is provided with a spherical cavity 1211 to enclose the other, and the other of the connector 1110 and the first nozzle 1210 is provided with a spherical surface 1111. Specifically, the connector 1110 may enclose the first nozzle 1210, or the first nozzle 1210 may enclose the connector 1110. When the connector 1110 and the first nozzle 1210 are assembled together, the first nozzle 1210 communicates with the connector 1110, and then with the water flow channel 1160. Taking the example of the first nozzle 1210 wrapping around the connector 1110, the first nozzle 1210 has a spherical cavity 1211, and the connector 1110 has a spherical surface 1111. When the first nozzle 1210 wraps around the connector 1110, the connector 1110 is located in the spherical cavity 1211. The cooperation between the spherical surface 1111 and the cavity wall of the spherical cavity 1211 allows the first nozzle 1210 to move relative to the connector 1110 (this movement is similar to rotation). Furthermore, the cooperation between the spherical surface 1111 and the cavity wall of the spherical cavity 1211 also achieves a seal between the first nozzle 1210 and the connector 1110, reducing water leakage between them. Similarly, the connector 1110 wrapping around the first nozzle 1210 has a similar technical effect, which will not be repeated here.

[0064] Combination Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 9As shown, in some embodiments, the slide plate 1300 is mounted on the surface of the spray arm body 1100. This can be either mounted on the upper or lower surface of the spray arm body 1100. Since the slide plate 1300 needs to drive the first nozzle 1210 to move, and the first nozzle 1210 needs to spray water outwards, mounting the slide plate 1300 on the surface of the spray arm body 1100 facilitates the interaction between the slide plate 1300 and the first nozzle 1210. Furthermore, due to the limited internal space of the spray arm body 1100, mounting the slide plate 1300 on the surface of the spray arm body 1100 simplifies the structural complexity between the slide plate 1300 and the spray arm body 1100, helping to reduce assembly difficulty.

[0065] Since the slide plate 1300 needs to reciprocate relative to the spray arm body 1100 along the first direction, in order to reduce the resistance between the slide plate 1300 and the spray arm body 1100, combined with Figure 9 and Figure 11 As shown, one of the slide plate 1300 and the spray arm body 1100 is provided with a sliding protrusion 1140, which is adapted to slide against the other of the slide plate 1300 and the spray arm body 1100. For example, the slide plate 1300 is mounted on the upper surface of the spray arm body 1100, and the upper surface of the spray arm body 1100 is provided with the sliding protrusion 1140. When the slide plate 1300 reciprocates along the first direction, it can slide against the sliding protrusion 1140, thereby reducing the contact area between the slide plate 1300 and the spray arm body 1100, which helps to reduce frictional resistance and makes the reciprocating movement of the slide plate 1300 smoother, thus better driving the first nozzle 1210. It can be understood that the sliding protrusion 1140 can also be provided on the slide plate 1300.

[0066] Combination Figure 1 , Figure 2 , Figure 9 and Figure 11 As shown, in some embodiments, the spray arm body 1100 is provided with a limiting part 1120, and the slide plate 1300 is provided with a limiting mating part 1320. The limiting part 1120 and the limiting mating part 1320 mutually restrict each other and can move relative to each other along a first direction. The mutual restriction between the limiting part 1120 and the limiting mating part 1320 means that after the slide plate 1300 and the spray arm body 1100 are assembled together, and under the interaction of the limiting part 1120 and the limiting mating part 1320, the slide plate 1300 and the spray arm body 1100... The spray arm body 1100 cannot be completely separated. At the same time, under the mutual restriction of the limiting part 1120 and the limiting engagement part 1320, the limiting part 1120 and the limiting engagement part 1320 can move relative to each other in the first direction. This guides the reciprocating movement of the slide plate 1300 in the first direction, so that the slide plate 1300 can reciprocate in the first direction under the guidance of the limiting part 1120 and the limiting engagement part 1320 under the action of the drive mechanism 1400.

[0067] Optionally, one of the limiting part 1120 and the limiting mating part 1320 is a limiting buckle 1120 and the other is a limiting groove 1320. The limiting buckle 1120 is fastened to the limiting groove 1320, and the limiting groove 1320 extends along the first direction. With this arrangement, it is easier to achieve mutual restriction and relative movement between the limiting part 1120 and the limiting mating part 1320.

[0068] For example, taking the first constraint part 1120 as the limit buckle 1120 and the limit mating part 1320 as the limit groove 1320 as an example, when assembling the slide plate 1300 onto the spray arm body 1100, the limit groove 1320 is aligned with the limit buckle 1120 and pressed until the limit buckle 1120 engages with the limit groove 1320. This achieves mutual restraint between the limit buckle 1120 and the limit groove 1320, completing the assembly of the slide plate 1300 and the spray arm body 1100. The slide plate 1300 cannot completely detach from the spray arm body 1100. Simultaneously... The limiting groove 1320 extends along the first direction, that is, the limiting groove 1320 has a long and narrow structure along the first direction (such as the limiting groove 1320 being an oblong hole). The limiting buckle 1120 can move relative to the limiting groove 1320 along the first direction. That is, when the slide plate 1300 moves back and forth along the first direction, the limiting buckle 1120 also moves back and forth relative to the limiting groove 1320 along the first direction. This can ensure the assembly of the slide plate 1300 and the spray arm body 1100, and also guide the back and forth movement of the slide plate 1300.

[0069] Combination Figure 1 , Figure 2 , Figure 6 and Figure 9 As shown, in some embodiments, the spray arm body 1100 is provided with a plurality of first nozzles 1210 along the extending direction of the spray arm body 1100, and a slide plate 1300 extends along the extending direction of the spray arm body 1100. The slide plate 1300 is adapted to drive the first nozzles 1210 on opposite sides of the first rotation axis 1610 to move. For example, combined with Figure 6 and Figure 7The orientation shown is with the spray arm body 1100 in a stationary state as a reference. The spray arm body 1100 extends in the left and right direction. Multiple first nozzles 1210 are respectively provided on the left and right sides of the first rotation axis 1610. Under the drive of the drive mechanism 1400, the slide plate 1300 can drive the multiple first nozzles 1210 on the left and right sides of the first rotation axis 1610 to move, so that the multiple first nozzles 1210 on the left and right sides of the first rotation axis 1610 move to achieve the superposition of angle changes, further improving the cleaning effect. It is not necessary to set corresponding slide plates 1300 for the multiple first nozzles 1210 on the left and right sides of the first rotation axis 1610, which helps to reduce the number of parts and thus reduce the assembly difficulty.

[0070] For example, combining Figure 6 and Figure 9 The orientation shown is with the spray arm body 1100 in a stationary state as a reference. The spray arm body 1100 extends in the left-right direction. A first nozzle 1210 (which can be one or more, meaning two or more) is located on the left side of the first rotation axis 1610, and a first nozzle 1210 (which can be one or more, meaning two or more) is also located on the right side of the first rotation axis 1610. The slide plate 1300 extends in the left-right direction for a certain length, and the slide plate 1300 has a nozzle located on the first rotation axis 1610. The left half of the left side of the slide plate 1300 is coupled to the right half of the slide plate 1300 located on the right side of the first rotation axis 1610. The left half of the slide plate 1300 is coupled to the first nozzle 1210 located on the left side of the first rotation axis 1610, and the right half of the slide plate 1300 is coupled to the first nozzle 1210 located on the right side of the first rotation axis 1610. When the drive mechanism 1400 drives the slide plate 1300 to reciprocate along the first direction, the left and right halves of the slide plate 1300 reciprocate synchronously, thereby driving the first nozzles 1210 on both sides (opposite sides) to move. Optionally, the slide plate 1300 can be designed as a one-piece molded part, which can further reduce the number of parts and help reduce the assembly difficulty of the spray arm 1000, such as the left and right halves of the slide plate 1300 mentioned above being one-piece molded.

[0071] Combination Figures 1 to 5 , Figure 9 and Figure 12As shown, in some embodiments, the drive mechanism 1400 includes a first gear 1410 and a second gear 1420. The first gear 1410 is coaxial with the spray arm body 1100. The spray arm body 1100 can rotate relative to the first gear 1410 to rotate on its own axis. The second gear 1420 is rotatably disposed on the spray arm body 1100 and meshes with the first gear 1410. Thus, when the spray arm body 1100 rotates on its own axis, the second gear 1420 revolves around the first rotation axis 1610 and rotates on its own axis around the second rotation axis 1620. When the second gear 1420 rotates on its own axis around the second rotation axis 1620, it drives the slide plate 1300 to reciprocate along the first direction.

[0072] Specifically, the first gear 1410 is coaxial with the spray arm body 1100, that is, the center of the first gear 1410 coincides with the first rotation axis 1610. After the spray arm 1000 is installed in the dishwasher, the first gear 1410 is stationary. When the spray arm body 1100 rotates, it can rotate relative to the first gear 1410. In other words, when the spray arm body 1100 is stationary, the first gear 1410 can rotate relative to the spray arm body 1100. At this time, the rotation axis (center) of the first gear 1410 is coaxial with the second rotation axis 1620. When the spray arm body 1100 rotates, the second gear 1420 revolves around the first rotation axis 1610. That is, the rotation axis of the second gear 1420 (the second rotation axis 1620) does not coincide with the first rotation axis 1610. Since the second gear 1420 meshes with the first gear 1410 and the first gear 1410 is stationary, the second gear 1420 can rotate synchronously around the second rotation axis 1620 when it revolves around the first rotation axis 1610. That is, when the spray arm body 1100 rotates, it can continuously drive the second gear 1420 to rotate, thereby continuously changing the orientation of the first nozzle 1210 relative to the spray arm body 1100.

[0073] Combination Figures 1 to 5 , Figure 9 and Figure 12As shown, in some embodiments, the second gear 1420 is provided with a protrusion 1421, which is offset from the second rotation axis 1620. The slide plate 1300 is provided with a insertion hole 1330, which extends along the second direction. That is, the insertion hole 1330 has a long and narrow structure along the second direction (such as the insertion hole 1330 being an oblong hole). An angle is formed between the second direction and the first direction, which is greater than 0°. The protrusion 1421 is inserted into the insertion hole 1330 so that when the second gear 1420 rotates, it drives the slide plate 1300 to reciprocate along the first direction. Since there is an angle between the second direction and the first direction, and the angle is greater than 0°, when the second gear 1420 rotates, the protruding rod 1421 rotates along with it and makes a similar eccentric movement relative to the second rotation axis 1620. This allows the protruding rod 1421 to abut against the wall of the insertion hole 1330. The abutment between the protruding rod 1421 and the wall of the insertion hole 1330 generates a component force along the first direction on the sliding plate 1300. During the continuous rotation of the second gear 1420, the two side walls of the insertion hole 1330 along the first direction are alternately abutted by the protruding rod 1421, which can drive the sliding plate 1300 to move back and forth along the first direction. Understandably, during the reciprocating movement of the slide plate 1300 along the first direction, the protruding rod 1421 moves relative to the insertion hole 1330 along the second direction within the insertion hole 1330. Therefore, the length of the insertion hole 1330 extending along the second direction needs to provide sufficient allowance for the protruding rod 1421. The extension length of the insertion hole 1330 along the second direction can be determined based on actual testing or structural layout. Optionally, the second gear 1420 and the protruding rod 1421 are integrally formed.

[0074] Optionally, the second direction is perpendicular to the first direction. This maximizes the component force along the first direction generated when the protrusion 1421 abuts against the wall of the insertion hole 1330, which is more conducive to the reciprocating movement of the slide plate 1300 along the first direction. See also... Figure 4 and Figure 5 The orientation shown is with the spray arm body 1100 in a stationary state as a reference. The first direction is the left-right direction, that is, the extension / length direction of the spray arm body 1100. The second direction is the front-back direction, that is, the width direction of the spray arm body 1100. Assuming that the second gear 1420 rotates counterclockwise and alternately abuts against the right and left sides of the hole wall of the insertion hole 1330, when the protrusion 1421 abuts against the right side of the hole wall of the insertion hole 1330, it can drive the slide plate 1300 to move to the right. When the protrusion 1421 abuts against the left side of the hole wall of the insertion hole 1330, it can drive the slide plate 1300 to move to the left. The protrusion 1421 generates the largest component force along the first direction on the slide plate 1300, which is more conducive to the transmission of power.

[0075] Combination Figure 9As shown, in some embodiments, the slide plate 1300 and the spray arm body 1100 clamp the second gear 1420, that is, the second gear 1420 is disposed between the spray arm body 1100 and the slide plate 1300. For example, the spray arm body 1100 forms a rotating column 1130, and the second gear 1420 is provided with a shaft hole 1421. The second gear 1420 is rotatably mounted on the rotating column 1130 through the shaft hole 1421. After the slide plate 1300 is installed on the spray arm body 1100, it and the spray arm body 1100 together clamp the second gear 1420 to prevent the second gear 1420 from disengaging.

[0076] Combination Figure 1 , Figure 2 and Figure 9 As shown, in some embodiments, the slide plate 1300 is provided with a clearance cavity 1340, and the first gear 1410 is located in the clearance cavity 1340. Since the first gear 1410 is coaxial with the spray arm body 1100 and remains stationary after the spray arm 1000 is installed, by such a setting, the slide plate 1300 is prevented from being interfered with by the first gear 1410 during reciprocating movement, and the clearance of the rotation center of the spray arm body 1100 can also be achieved.

[0077] Combination Figure 1 and Figure 9 As shown, in some embodiments, the first gear 1410 surrounds the first rotation axis 1610. Since the spray arm body 1100 needs to be assembled into the target area (such as the water supply pipe 2000 in the following text) and can rotate, in this embodiment, the first gear 1410 is designed as a ring structure, surrounding the first rotation axis 1610. In this way, the first gear 1410 can avoid the rotation center of the spray arm body 1100, making it convenient for the spray arm body 1100 to be assembled into the target area.

[0078] Combination Figure 9 In some embodiments, the number of second gears 1420 is one. Since the slide plate 1300 moves back and forth along the first direction to drive the first nozzle 1210, the cooperation between the second gear 1420 and the slide plate 1300 allows the slide plate 1300 to drive all the first nozzles 1210 even when the number of second gears 1420 is designed to be one. This helps to reduce the number of parts and thus reduce the assembly difficulty.

[0079] The second aspect of this application discloses a spray system 3000, combined with... Figures 1 to 14As shown, in some embodiments, the spray system 3000 includes the aforementioned spray arm 1000. The spray arm 1000 includes a spray arm body 1100, a first nozzle 1210, a slide plate 1300, and a drive mechanism 1400. The spray arm body 1100 is adapted to rotate about a first rotation axis 1610, and the spray arm body 1100 is provided with a water flow channel 1160. The first nozzle 1210 is disposed on the spray arm body 1100 and is movable relative to the spray arm body 1100. The first nozzle 1210 flows with the water flow channel. The channel 1160 is connected, and the slide plate 1300 is disposed on the spray arm body 1100 and can reciprocate relative to the spray arm body 1100 along a first direction. The slide plate 1300 is adapted to couple with the first nozzle 1210. The drive mechanism 1400 is adapted to drive the slide plate 1300 to reciprocate along the first direction when the spray arm body 1100 rotates. The slide plate 1300 is adapted to drive the first nozzle 1210 to move when reciprocating along the first direction, thereby changing the orientation of the first nozzle 1210 relative to the spray arm body 1100. It can be understood that the spray arm 1000 of the spray system 3000 of this embodiment adopts the technical solution of the above embodiment, and therefore has at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0080] Optionally, combined Figures 6 to 9 As shown, the sprinkler system 3000 also includes a water supply pipe 2000, a spray arm body 1100 is rotatably connected to the water supply pipe 2000 so that it can rotate, a water flow channel 1160 is connected to the water supply pipe 2000, and a first gear 1410 is fixedly connected to the water supply pipe 2000.

[0081] The water pumped by the circulating pump is delivered to the water supply pipe 2000, and then enters the water flow channel 1160 of the spray arm body 1100 from the water supply pipe 2000. The water flow is sprayed out from the first nozzle 1210 and the drive hole 1220. The water flow sprayed out from the drive hole 1220 can provide torque to make the spray arm body 1100 rotate. Since the first gear 1410 is fixedly connected to the water supply pipe 2000 and remains stationary, the second gear 1420 revolves around the first rotation axis 1610 and rotates around the second rotation axis 1620, thereby driving the slide plate 1300 to move back and forth.

[0082] The connection between the spray arm body 1100 and the water supply pipe 2000 can be found in relevant technologies, and will be briefly described below. The water supply pipe 2000 has an outlet end 2100, and the spray arm body 1100 has an inlet end 1150. The spray arm 1000 also includes a locking block 1510 and a gasket 1520. The assembly process of the spray arm 1000 and the water supply pipe 2000 is as follows: The first gear 1410 is sleeved on the inlet end 1150. The first gear 1410 and the inlet end 1150 can rotate relative to each other (relative rotation; after the spray arm 1000 is installed, the first gear 1410 remains stationary, while the spray arm body 1100 rotates). The gasket 1520 is placed on the first gear 1410. On the 0, the gasket 1520 serves as a lubricant and sealant. The locking block 1510 is inserted into the water inlet 1150 and fixedly connected to the water inlet 1150 (e.g., by means of a rotating buckle). The locking block 1510 provides axial positioning for the first gear 1410. The water outlet 2100 is inserted into the locking block 1510 to connect the water supply pipe 2000 and the water flow channel 1160. The first gear 1410 is fixedly connected to the water outlet 2100 (e.g., by means of a rotating buckle). The first gear 1410 is stationary relative to the water supply pipe 2000. In this way, the spray arm 1000 is assembled to the water supply pipe 2000.

[0083] The third aspect of this application discloses a dishwasher, which includes the spray system 3000 described above. It is understood that the spray system 3000 of the dishwasher in this embodiment adopts the technical solution of the above embodiment, and therefore has at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0084] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A spray arm (1000), characterized in that, include: The spray arm body (1100) is adapted to rotate about a first rotation axis (1610), and the spray arm body (1100) is provided with a water flow channel (1160); A first nozzle (1210) is disposed on the spray arm body (1100) and is movable relative to the spray arm body (1100). The first nozzle (1210) is connected to the water flow channel (1160). A sliding plate (1300) is disposed on the spray arm body (1100) and is reciprocating relative to the spray arm body (1100) in a first direction. The sliding plate (1300) is fitted onto the surface of the spray arm body (1100) and coupled to the first nozzle (1210). The drive mechanism (1400) is adapted to drive the slide plate (1300) to reciprocate along the first direction when the spray arm body (1100) rotates. The slide plate (1300) is adapted to drive the first nozzle (1210) to move when it reciprocates along the first direction, so as to change the orientation of the first nozzle (1210) relative to the spray arm body (1100).

2. The spray arm (1000) as described in claim 1, characterized in that, The slide plate (1300) is adapted to drive the first nozzle (1210) to swing back and forth when it moves back and forth along the first direction.

3. The spray arm (1000) as described in claim 2, characterized in that, The slide plate (1300) is provided with a locking hole (1310), and the first nozzle (1210) is at least partially inserted through the locking hole (1310) so that the slide plate (1300) and the first nozzle (1210) are coupled.

4. The spray arm (1000) as described in claim 2, characterized in that, The main body of the spray arm (1100) is provided with a connector (1110) communicating with the water flow channel (1160). One of the connector (1110) and the first nozzle (1210) is provided with a ball cavity (1211) to enclose the other. The other of the connector (1110) and the first nozzle (1210) is provided with a spherical surface (1111).

5. The spray arm (1000) as described in claim 1, characterized in that, One of the slide plate (1300) and the spray arm body (1100) is provided with a sliding protrusion (1140), which is adapted to slide against the other of the slide plate (1300) and the spray arm body (1100).

6. The spray arm (1000) as described in claim 1, characterized in that, The main body of the spray arm (1100) is provided with a limiting part (1120), and the slide plate (1300) is provided with a limiting mating part (1320). The limiting part (1120) and the limiting mating part (1320) restrict each other and can move relative to each other along the first direction.

7. The spray arm (1000) as described in claim 6, characterized in that, One of the limiting part (1120) and the limiting mating part (1320) is a limiting buckle (1120) and the other is a limiting groove (1320). The limiting buckle (1120) is fastened to the limiting groove (1320), and the limiting groove (1320) extends along the first direction.

8. The spray arm (1000) as described in claim 1, characterized in that, The spray arm body (1100) is provided with a plurality of first nozzles (1210) along the extension direction of the spray arm body (1100), and the slide plate (1300) extends along the extension direction of the spray arm body (1100). The slide plate (1300) is adapted to drive the first nozzles (1210) on both sides of the first rotation axis (1610) to move. And / or, the skateboard (1300) is a one-piece molded part.

9. The spray arm (1000) as described in claim 1, characterized in that, The drive mechanism (1400) includes: The first gear (1410) is coaxial with the spray arm body (1100), and the spray arm body (1100) can rotate relative to the first gear (1410) to rotate on its own axis; The second gear (1420) is rotatably disposed on the spray arm body (1100), and the second gear (1420) meshes with the first gear (1410) so that when the spray arm body (1100) rotates, the second gear (1420) revolves around the first rotation axis (1610) and rotates around the second rotation axis (1620). The second gear (1420) is adapted to drive the slide plate (1300) to reciprocate along the first direction when rotating.

10. The spray arm (1000) as described in claim 9, characterized in that, The second gear (1420) is provided with a protruding rod (1421), which is offset from the second rotation axis (1620). The slide plate (1300) is provided with a socket (1330), and the protruding rod (1421) is inserted into the socket (1330). The socket (1330) extends along a second direction, and an angle is formed between the second direction and the first direction. The angle is greater than 0°, so that when the second gear (1420) rotates, it drives the slide plate (1300) to reciprocate along the first direction.

11. The spray arm (1000) as described in claim 10, characterized in that, The second direction is perpendicular to the first direction.

12. The spray arm (1000) as described in claim 9, characterized in that, The spray arm body (1100) has a rotating column (1130), and the second gear (1420) is provided with a shaft hole (1421). The second gear (1420) is rotatably mounted on the rotating column (1130) through the shaft hole (1421). The slide plate (1300) and the spray arm body (1100) clamp the second gear (1420). And / or, the slide plate (1300) is provided with a clearance cavity (1340), and the first gear (1410) is located in the clearance cavity (1340).

13. The spray arm (1000) as described in claim 1, characterized in that, The spray arm (1000) also includes a drive hole (1220), which is located on the spray arm body (1100) and communicates with the water flow channel (1160). The orientation of the drive hole (1220) relative to the spray arm body (1100) is constant. And / or, the first direction is in the same direction as the extension direction of the spray arm body (1100).

14. A spray system (3000), characterized in that, Includes the spray arm (1000) as described in any one of claims 1 to 13.

15. The spray system (3000) as claimed in claim 14, characterized in that, The spray system (3000) also includes a water supply pipe (2000), the main body of the spray arm (1100) is rotatably connected to the water supply pipe (2000) so that it can rotate, the water flow channel (1160) is connected to the water supply pipe (2000), and the first gear (1410) of the spray arm (1000) is fixedly connected to the water supply pipe (2000).

16. The spray system (3000) as claimed in claim 15, characterized in that, The water supply pipe (2000) has an outlet end (2100), the spray arm body (1100) has an inlet end (1150), the spray arm (1000) further includes a locking block (1510), the first gear (1410) is sleeved on the inlet end (1150) and the first gear (1410) and the inlet end (1150) can rotate relative to each other, the locking block (1510) is inserted into the inlet end (1150) and fixedly connected to the inlet end (1150) to axially limit the first gear (1410), the outlet end (2100) is inserted into the locking block (1510) to make the water supply pipe (2000) and the water flow channel (1160) connected, and the outlet end (2100) and the first gear (1410) are fixedly connected.

17. A dishwasher, characterized in that, Includes the spray system (3000) as described in any one of claims 14 to 16.

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