Spraying device and dish washing machine

Abstract

The invention relates to a spraying device and a dish-washing machine. The spraying device comprises a water inlet piece, a fixing base and at least one spraying mechanism, and the water inlet piece is provided with gear teeth and a water inlet; the fixed seat is rotatably arranged on the water inlet piece; the spraying mechanism comprises a spraying arm, a first bevel gear and a transmission assembly, the spraying arm is rotatably arranged on the fixed seat, an inclination angle is formed between the rotating axis of the spraying arm and the rotating axis of the fixed seat rotating around the water inlet part, and the first bevel gear is arranged on the fixed seat and meshed with gear teeth of the water inlet part. The fixing base rotates on the water inlet piece, the first bevel gear rotates on gear teeth of the water inlet piece, and the transmission assembly is used for driving the spraying arm to swing back and forth between the first position and the second position. According to the spraying device provided by the invention, the spraying arm can do circular motion while swinging back and forth at a certain angle on the fixed seat, so that a plurality of spraying tracks of washing water are formed, the spraying tracks of the washing water are denser, and the coverage area is wider.

Description

Technical Field

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

[0002] There are multiple spray holes on the spray arm of the dishwasher, and the multiple spray holes are arranged on the spray arm at a certain interval. When the spray arm rotates relative to its central axis, high-pressure water is sprayed from the spray holes to rinse the dishes and achieve a cleaning effect.

[0003] In the related art, most dishwashers are square boxes, while the spray rotation area of ​​the spray arm is circular, and its ability to wash dishes at the four corners of the rack is weak, resulting in that the dishes at the four corners of the dishwasher cannot be rinsed clean, and the spray track spacing in the spray arm is large, and there are many areas in the washing cavity that cannot be directly sprayed, resulting in that the dishes in some areas can only be rinsed by relying on the washing water ejected from the dishes in other areas, and even the undesirable phenomenon of washing dead corners may occur, seriously affecting the cleaning effect. Summary of the invention

[0004] Based on this, it is necessary to provide a spray device and a dishwasher to address the problem that the spray arm in the existing dishwasher has a poor cleaning effect on tableware.

[0005] A spray device, comprising:

[0006] A water inlet component, wherein the water inlet component has gear teeth and a water inlet;

[0007] A fixing seat, the fixing seat being rotatably arranged on the water inlet member;

[0008] At least one spray mechanism, the spray mechanism includes a spray arm, a first bevel gear and a transmission assembly, the spray arm has at least one spray hole for spraying washing water, the spray hole is connected to the water inlet, the spray arm is rotatably arranged on the fixed seat, the rotation axis of the spray arm and the rotation axis of the fixed seat rotating around the water inlet member have an inclination angle, the first bevel gear is arranged on the fixed seat and meshes with the gear teeth of the water inlet member, during the process of the spray arm spraying washing water, the fixed seat rotates on the water inlet member, and the first bevel gear rotates on the gear teeth of the water inlet member, the transmission assembly is transmission-connected with the first bevel gear and the spray arm, and the transmission assembly is used to drive the spray arm to swing back and forth between the first position and the second position.

[0009] The above-mentioned spray device, when washing water is introduced into the water inlet and the spray hole of the spray arm sprays washing water, the spray arm can be driven to rotate on the fixed seat through the spray reaction force, and the power is transmitted to the first bevel gear through the transmission component. Since the first bevel gear is meshed with the gear teeth of the water inlet part, the spray arm drives the first bevel gear to rotate on the gear teeth of the water inlet part through the transmission component, and the first bevel gear drives the fixed seat to rotate around the water inlet part, so that the spray arm performs a circular motion around the water inlet part. At the same time, the transmission component can change the swinging direction of the spray arm between the first position and the second position, so that the spray arm swings back and forth at a certain angle on the fixed seat, and since the rotation axis of the spray arm and the rotation axis of the fixed seat rotating around the water inlet part have an inclination angle, that is, the swing axis of the spray arm and the rotation axis of the fixed seat rotating around the water inlet part have an inclination angle, the circular motion trajectory of the spray arm does not overlap with the swing trajectory, so as to form a plurality of spray trajectories of washing water, and the spray trajectories of washing water are more dense and cover a wider area, so as to improve the cleaning effect of the spray device on tableware. In addition, when there are multiple spray mechanisms, since the multiple spray mechanisms are all meshed with the gear teeth of the water inlet member through the first bevel gear, the synchronization of the spraying of washing water in the multiple spray mechanisms can be ensured.

[0010] In one embodiment, the water inlet member includes a water inlet seat and a second bevel gear, the second bevel gear is fixedly connected to the water inlet seat, the water inlet is arranged at the water inlet seat, and the first bevel gear is meshed with the second bevel gear.

[0011] In one embodiment, the transmission assembly includes a first gear, a second gear and a third gear, the spray arm is fixedly arranged on the first gear, the first gear and the second gear are meshed with each other, the third gear is intermittently transmission-connected to one of the first gear and the second gear, and is coaxially transmission-connected to the first bevel gear. The third gear is intermittently transmission-connected to one of the first gear and the second gear to change the swing direction of the spray arm between the first position and the second position, and power can be transmitted to the first bevel gear, so that the first bevel gear and the fixed seat can drive the spray arm to perform circular motion.

[0012] In one embodiment, the first gear has a first transmission shaft, the second gear has a second transmission shaft, the first bevel gear has a third transmission shaft, the spray arm is arranged on the first transmission shaft, and the third gear is arranged on the third transmission shaft;

[0013] The transmission assembly further includes a fourth gear and a fifth gear, wherein the fourth gear is sleeved on the first transmission shaft, the fifth gear is sleeved on the second transmission shaft, and the third gear is intermittently meshed with one of the fourth gear and the fifth gear. The third gear is intermittently meshed with one of the fourth gear and the fifth gear to change the swing direction of the spray arm between the first position and the second position, so that the spray arm swings back and forth at a certain angle on the fixed seat.

[0014] In one embodiment, the third gear, the fourth gear and the fifth gear are all tooth-missing structures, and the tooth-missing structures can enable the third gear to intermittently mesh with one of the fourth gear and the fifth gear.

[0015] In one embodiment, the number of teeth of the third gear is N, the number of teeth of the fourth gear and the fifth gear are both N-1, and during the rotation of the third gear, there is a position where the meshing of the third gear with the fourth gear ends and the meshing of the third gear with the fifth gear begins, and there is another position where the meshing of the third gear with the fifth gear ends and the meshing of the third gear begins, so that the meshing action between the third gear and the fourth gear and the fifth gear is continuous.

[0016] In one embodiment, the side wall of the fixing seat is provided with a first mounting hole, a second mounting hole and a third mounting hole, the first transmission shaft is rotatably inserted in the first mounting hole along its axial direction, the second transmission shaft is rotatably inserted in the second mounting hole along its axial direction, and the third transmission shaft is rotatably inserted in the third mounting hole along its axial direction. When the first bevel gear performs a circular motion on the second bevel gear, the first bevel gear is connected to the fixing seat through the third mounting hole, thereby being able to drive the fixing seat to rotate around the axial direction of the second bevel gear, and drive the spray arm to perform a circular motion around the water inlet.

[0017] In one embodiment, there are multiple spray mechanisms, and multiple first bevel gears are meshed with the second bevel gear at intervals along the circumferential direction of the second bevel gear. Multiple spray mechanisms can make the spray trajectory more dense and cover a wider area, further improving the cleaning effect of the spray device on tableware.

[0018] In one embodiment, the fixed seat includes a gear box and a gear cover cooperating with the gear box, the gear box is rotatably disposed on the second bevel gear, a plurality of the spray mechanisms are embedded in the gear cover at intervals along the circumferential direction of the gear cover, and the spray arm is located inside the gear box and is arranged close to the side wall of the gear box.

[0019] In one embodiment, the water inlet seat and the fixed seat cooperate to form a water inlet cavity for washing water to flow, the water inlet, the water inlet cavity and the spray hole are connected to each other, and the spray arm is located outside the water inlet cavity. The water inlet cavity is provided in the water inlet seat and the fixed seat for washing water to pass through, so that the washing water can reach the spray arm and drive the spray arm to rotate and swing on the fixed seat, and spray to the tableware placement area to rinse the tableware.

[0020] In one embodiment, a sealing ring is provided at the connection between the second bevel gear and the gear box, which can prevent leakage of washing water during the flow process.

[0021] In one embodiment, a plurality of clamping platforms cooperating with the spray mechanism are arranged at intervals along the circumferential direction inside the gear cover, and the first bevel gear is rotatably clamped to the clamping platforms. The clamping platforms can limit and fix the first bevel gear on one hand, and can also ensure the rotation accuracy of the first bevel gear on the other hand.

[0022] A dishwasher, comprising:

[0023] Dishwasher body;

[0024] The spray device as described in any one of the above technical solutions is arranged on the dishwasher body.

[0025] The above-mentioned dishwasher has a spray device arranged on the dishwasher body, and the tableware placed in the dishwasher body is rinsed by the reciprocating swing and circular motion of the spray arm. The spray trajectory of the washing water is relatively dense and covers a wide area, and the dishwasher has a good cleaning effect on the tableware. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The figure is a schematic diagram of the spray trajectory of the spray arm in the existing dishwasher.

[0027] Figure 2 It is a schematic diagram of an exploded view of a spray device provided in some embodiments.

[0028] Figure 3 Schematic diagram of the structure of the module composed of the second bevel gear and the spray mechanism in some embodiments.

[0029] Figure 4 It is a schematic diagram of the exploded structure of the second bevel gear and the spray mechanism component module in some embodiments.

[0030] Figure 5 1 is an internal cross-sectional view of a spray device in some embodiments.

[0031] Figure 6 It is a schematic diagram of the action of the spray device provided in some embodiments swinging in a certain direction.

[0032] Figure 7 It is a schematic diagram of the action of the spray device provided in some embodiments swinging in another direction.

[0033] Figure 8 Schematic diagram of the spray trajectory of the spray arm in the spray device provided in some embodiments.

[0034] Fig. 9 It is a schematic diagram of the structure of a dishwasher provided in some embodiments.

[0035] Reference numerals:

[0036] 100. Spraying device;

[0037] 110, water inlet; 111, gear; 112, water inlet; 113, water inlet seat; 114, water inlet chamber; 120, second bevel gear; 121, sealing ring; 130, fixing seat; 131, first mounting hole; 132, second mounting hole; 133, third mounting hole; 134, gear box; 135, gear cover; 1351, card table; 140, spray mechanism; 141, spray arm; 1411, spray hole; 142, first bevel gear; 1421, third transmission shaft; 143, transmission assembly; 1431, first gear; 1432, second gear; 1433, third gear; 1434, first transmission shaft; 1435, second transmission shaft; 1436, fourth gear; 1437, fifth gear;

[0038] 200. Dishwasher; 210. Dishwasher body. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0045] The technical solution provided by the embodiments of the present application is described below in conjunction with the accompanying drawings.

[0046] like Figure 1 As shown, there are multiple spray holes on the spray arm 01 of the existing dishwasher. The multiple spray holes are arranged on the spray arm 01 at a certain interval. When the spray arm 01 rotates relative to its central axis, high-pressure water is sprayed from the spray holes to rinse the dishes to achieve a cleaning effect.

[0047] However, most dishwashers are square-shaped, while the spray rotation area of ​​the spray arm 01 is circular. Figure 1 The S1 area shown has a weaker ability to wash the dishes at the four corners of the rack, resulting in the dishes at the four corners of the dishwasher not being rinsed clean, and the spray track spacing in the spray arm 01 is large, and there are many areas in the washing cavity that cannot be directly sprayed, resulting in the dishes in some areas can only be rinsed by relying on the washing water ejected from the dishes in other areas, and even the undesirable phenomenon of washing dead corners will occur, seriously affecting the cleaning effect.

[0048] Based on this, Figure 2-Figure 4 As shown, the present application provides a spray device 100, which includes a water inlet 110, a fixing seat 130 and at least one spray mechanism 140. The water inlet 110 has a gear 111 and a water inlet 112, such as a gear structure integrally formed on the water inlet 110, or a gear structure connected to the water inlet 110. The fixing seat 130 is disposed on the water inlet 110, and the fixing seat 130 can rotate around the water inlet 110. In this embodiment, the spray device 100 can be configured on the dishwasher 200 to rinse the tableware placed in the dishwasher 200.

[0049] The spray mechanism 140 includes a spray arm 141, a first bevel gear 142 and a transmission assembly 143. The spray arm 141 has at least one spray hole 1411 for spraying washing water. The spray hole 1411 is connected to the water inlet 112, so that the washing water introduced toward the water inlet 112 can be sprayed onto the surface of the tableware through the spray hole 1411. Preferably, there are multiple spray holes 1411 arranged on the spray arm 141 to increase the spray amount of washing water and improve the rinsing efficiency and cleaning effect of the spray arm 141 on the tableware. The spray arm 141 is rotatably arranged on the fixed seat 130, and the rotation axis of the spray arm 141 has an inclination angle with the rotation axis of the fixed seat 130 rotating around the water inlet 110. The first bevel gear 142 is arranged on the fixed seat 130, and the first bevel gear 142 is meshed with the gear teeth 111 of the water inlet 110. The transmission assembly 143 is transmission-connected with the first bevel gear 142 and the spray arm 141. During the process of spraying washing water from the spray hole 1411 of the spray arm 141, the spray arm 141 can rotate on the fixed seat 130, that is, the spray arm 141 is driven to rotate on the fixed seat 130 by the reaction force of the spraying washing water. Under the reaction of the spray arm 141, the fixed seat 130 rotates on the water inlet member 110, and because the spray arm 141 is connected to the transmission assembly 143 by transmission, the spray arm 141 can transmit power to the first bevel gear 142 through the transmission assembly 143. The gear 142 is meshed with the gear teeth 111 of the water inlet member 110. The spray arm 141 drives the first bevel gear 142 to rotate on the gear teeth 111 of the water inlet member 110 through the transmission assembly 143. The first bevel gear 142 can also drive the fixed seat 130 to rotate around the water inlet member 110. Since the spray arm 141 is indirectly connected to the fixed seat 130 through the transmission assembly 143 and the first bevel gear 142, the spray arm 141 can make a circular motion around the water inlet member 110 driven by the fixed seat 130.

[0050] The transmission assembly 143 is used to drive the spray arm 141 to swing back and forth between the first position and the second position. In other words, when the spray arm 141 swings between the first position and the second position, the transmission assembly 143 can change the swing direction of the spray arm 141 between the first position and the second position, so that the spray arm 141 swings back and forth at a certain angle on the fixed seat 130. That is, when the spray arm 141 swings to the first position, the transmission assembly 143 changes the swing direction of the spray arm 141, so that the spray arm 141 swings toward the direction close to the second position. When the spray arm 141 swings to the second position, the transmission assembly 143 continues to change the swing direction of the spray arm 141, so that the spray arm 141 swings toward the direction close to the first position. Among them, the first position and the second position are two extreme positions in the swing process of the spray arm 141, and in this embodiment, the swing angle of the spray arm 141 is less than 180°. In addition, since the rotation axis of the spray arm 141 and the rotation axis of the fixed seat 130 rotating around the water inlet 110 have an inclination angle, that is, the swing axis of the spray arm 141 and the rotation axis of the fixed seat 130 rotating around the water inlet 110 have an inclination angle, as in the present embodiment, the fixed seat 130 has a mounting surface for mounting the spray arm 141, and when the spray arm 141 is fixed on the mounting surface, the swing axis of the spray arm 141 is perpendicular to the mounting surface of the fixed seat 130. The swing axis of the spray arm 141 is set to have an inclination angle with the rotation direction of the fixed seat 130 around the water inlet 110, that is, the swing axis of the spray arm 141 is not parallel to the rotation axis of the fixed seat 130 rotating around the water inlet 110, so that the circular motion trajectory of the spray arm 141 does not overlap with the swing trajectory, so as to form a plurality of spray trajectories of washing water, and the spray trajectories of washing water are more dense and cover a wider area, so as to improve the washing effect of the spray device 100 on the dishes.

[0051] In addition, when there are multiple spray mechanisms 140, since the multiple spray mechanisms 140 are engaged with the gear teeth 111 of the water inlet member 110 through the first bevel gear 142, the water inlet member 110 can constrain the spraying action of the multiple spray mechanisms 140 to ensure the synchronization of the spraying of washing water in the multiple spray mechanisms 140.

[0052] In one embodiment, if Figure 2-Figure 4As shown, the water inlet member 110 includes a water inlet seat 113 and a second bevel gear 120. The second bevel gear 120 is fixedly connected to the water inlet seat 113 by screwing, clamping, etc. The water inlet 112 is provided on the water inlet seat 113 for supplying washing water. The first bevel gear 142 is meshed with the second bevel gear 120. When washing water is introduced toward the water inlet 112 and the spray hole 1411 sprays washing water, the spray arm 141 can be driven to rotate on the fixed seat 130 by the spray reaction force. The spray arm 141 drives the first bevel gear 142 to rotate on the second bevel gear 120 through the transmission assembly 143. The first bevel gear 142 drives the fixed seat 130 to rotate around the axial direction of the second bevel gear 120, so that the spray arm 141 performs a circular motion around the axial direction of the second bevel gear 120.

[0053] In order to change the swing direction of the spray arm 141 during the swinging process, in one embodiment, as shown in FIG. Figure 2-Figure 4 As shown, the transmission assembly 143 includes a first gear 1431, a second gear 1432 and a third gear 1433. The spray arm 141 is fixedly disposed on the first gear 1431, and the first gear 1431 and the second gear 1432 are meshed with each other. When the spray arm 141 is driven by the spray reaction force of the washing water, the first gear 1431 can be driven to rotate, thereby driving the second gear 1432 to rotate. The third gear 1433 is intermittently connected to one of the first gear 1431 and the second gear 1432. That is, when the third gear 1433 is connected to the first gear 1431, the third gear 1433 and the second gear 1432 are separated from each other, and the spray arm 141 swings in a certain direction under the reaction force of the washing water; similarly, when the third gear 1433 is connected to the second gear 1432, the third gear 1433 and the first gear 1431 are separated from each other. At this time, the second gear 1432 provides a reaction force meshing with the first gear 1431 to change the rotation direction of the first gear 1431, so that the spray arm 141 set on the first gear 1431 swings in the opposite direction to the above. Repeating the intermittent transmission connection action of the third gear 1433 and the first gear 1431 or the second gear 1432, the spray arm 141 can swing back and forth at a certain angle on the fixed seat 130.

[0054] Furthermore, the third gear 1433 is coaxially connected to the first bevel gear 142. For example, the third gear 1433 is connected to the first bevel gear 142 through the third transmission shaft 1421. The third gear 1433 can transmit power to the first bevel gear 142 through the third transmission shaft 1421. Since the first bevel gear 142 is meshed with the second bevel gear 120, the third gear 1433 can drive the first bevel gear 142 to rotate on the second bevel gear 120 during the rotation process. During the rotation process of the first bevel gear 142, the spray arm 141 can be driven to rotate around the axial direction of the second bevel gear 120 through the fixed seat 130 to achieve the circular motion of the spray arm 141 on the fixed seat 130. When the spray device 100 has multiple spray mechanisms 140, the first bevel gear 142 can also constrain the spraying actions of the multiple spray mechanisms 140 to ensure the synchronization of the spraying of the washing water in the multiple spray mechanisms 140.

[0055] Furthermore, if Figure 2-Figure 4 As shown, the first gear 1431 has a first transmission shaft 1434, the second gear 1432 has a second transmission shaft 1435, the first bevel gear 142 has a third transmission shaft 1421, the spray arm 141 is set on the first transmission shaft 1434 in a sleeve manner, and the third gear 1433 is set on the third transmission shaft 1421 in a sleeve manner. When the spray arm 141 swings under the reaction force of the washing water injection, the spray arm 141 can transmit power to the first gear 1431 through the first transmission shaft 1434 to drive the movement of the transmission assembly 143, and when the third gear 1433 continues to rotate to the side connected to the second gear 1432, and the second gear 1432 provides the first gear 1431 with a reverse force, the first gear 1431 transmits power to the spray arm 141 through the first transmission shaft 1434, and the spray arm 141 changes its swing direction in the first position or the second position by taking advantage of the momentum. In addition, the third gear 1433 can transmit power to the first bevel gear 142 through the third transmission shaft 1421 during the rotation process, so as to drive the first bevel gear 142 to rotate in meshing with the second bevel gear 120 .

[0056] In addition, the transmission assembly 143 further includes a fourth gear 1436 and a fifth gear 1437 . The fourth gear 1436 is sleeved on the first transmission shaft 1434 , the fifth gear 1437 is sleeved on the second transmission shaft 1435 , and the third gear 1433 is intermittently meshed with one of the fourth gear 1436 and the fifth gear 1437 . Since the fourth gear 1436 and the fifth gear 1437 are respectively arranged on the first gear 1431 and the second gear 1432, when the spray arm 141 rotates and swings in a certain direction, the third gear 1433 and the fourth gear 1436 mesh and rotate, and the third gear 1433 continues to rotate. When the third gear 1433 continues to rotate to the side meshing with the fifth gear 1437, the fifth gear 1437 drives the second gear 1432 to reverse. Since the second gear 1432 and the first gear 1431 mesh with each other, the second gear 1432 exerts a rotational reaction force on the first gear 1431, and the spray arm 141 on the first gear 1431 takes advantage of the momentum to swing in the opposite direction to the above, so that the spray arm 141 swings back and forth at a certain angle on the fixed seat 130.

[0057] Specifically, Figure 2-Figure 4 As shown, the third gear 1433, the fourth gear 1436 and the fifth gear 1437 are all toothless structures, and the toothless structure can make the third gear 1433 intermittently mesh with one of the fourth gear 1436 and the fifth gear 1437 to change the swing direction of the spray arm 141 between the first position and the second position. As in the present embodiment, the third gear 1433, the fourth gear 1436 and the fifth gear 1437 are only provided with gear teeth in a partial area outside their peripheries. When the gear-toothed structure of the third gear 1433 rotates to one side, the third gear 1433 meshes with the fourth gear 1436, and at the same time, the third gear 1433 is separated from the fifth gear 1437. On the contrary, when the gear-toothed structure of the third gear 1433 rotates to the other side, the third gear 1433 meshes with the fifth gear 1437, and at the same time, the third gear 1433 meshes with the fourth gear 1436.

[0058] In order to make the third gear 1433 intermittently meshing with the fourth gear 1436 or the fifth gear 1437 continuous, in one embodiment, as shown in FIG. Figure 2-Figure 4As shown, the number of teeth of the third gear 1433 is N, and the number of teeth of the fourth gear 1436 and the fifth gear 1437 are both N-1, where N is a natural number greater than or equal to 2. Since the number of teeth of the third gear 1433 is 1 greater than the number of teeth of the fourth gear 1436 and the fifth gear 1437, there is a position where the third gear 1433 ends meshing with the fourth gear 1436 and starts meshing with the fifth gear 1437. When the third gear 1433 continues to rotate past this position, the third gear 1433 can be separated from the fourth gear 1436 and meshed with the fifth gear 1437 at the same time; similarly, there is another position where the third gear 1433 ends meshing with the fifth gear 1437 and starts meshing with the fourth gear 1436. When the third gear 1433 continues to rotate past this position, the third gear 1433 can be separated from the fifth gear 1437 and meshed with the fourth gear 1436 at the same time. Through the above arrangement, the meshing action between the third gear 1433 and the fourth gear 1436 and the fifth gear 1437 can be continuous, that is, when the third gear 1433 is meshed with the fourth gear 1436, the third gear 1433 is separated from the fifth gear 1437. Similarly, when the third gear 1433 is meshed with the fifth gear 1437, the third gear 1433 is separated from the fourth gear 1436, thereby preventing the third gear 1433 from idling.

[0059] For example, in this embodiment, the third gear 1433 is provided with 4 gear teeth, and the fourth gear 1436 and the fifth gear 1437 are both provided with 3 gear teeth. During the rotation of the third gear 1433, there is a position where the two outermost gear teeth of the four gear teeth of the third gear 1433 are respectively meshed with one of the outermost gear teeth of the fourth gear 1436 and one of the outermost gear teeth of the fifth gear 1437. Of course, in other feasible embodiments, the number of teeth of the third gear 1433, the fourth gear 1436 and the fifth gear 1437 can also be other numbers, and the present application does not limit the specific number of teeth of the third gear 1433, the fourth gear 1436 and the fifth gear 1437.

[0060] In order to enrich the spraying trajectory of the spraying arm 141, in one embodiment, Figure 2-Figure 4As shown, the side wall of the fixing seat 130 is provided with a first mounting hole 131, a second mounting hole 132 and a third mounting hole 133. For example, in this embodiment, the fixing seat 130 has four side walls, and the first mounting hole 131, the second mounting hole 132 and the third mounting hole 133 are spaced apart and arranged on one of the side walls of the fixing seat 130. The first transmission shaft 1434 is rotatably arranged in the first mounting hole 131 along its axial direction, and the second transmission shaft 1435 is rotatably arranged in the second mounting hole 132 along its axial direction. The spray arm 141 and the transmission assembly 143 are arranged on the fixing seat 130 through the first transmission shaft 1434 and the second transmission shaft 1435. The third transmission shaft 1421 is rotatably inserted into the third mounting hole 133 along its axial direction, and the first bevel gear 142 is indirectly set on the fixed seat 130 through the third transmission shaft 1421. When the first bevel gear 142 makes a circular motion on the second bevel gear 120, the first bevel gear 142 can drive the fixed seat 130 to rotate around the axial direction of the second bevel gear 120. Since the spray arm 141 is set on the fixed seat 130, the fixed seat 130 can drive the spray arm 141 to make a circular motion to enrich the spray trajectory of the spray arm 141, so that the spray trajectory of the washing water is denser and covers a wider area, so as to improve the cleaning effect of the spray device 100 on the tableware.

[0061] In order to improve the flushing effect of the spray device 100, in one embodiment, Figure 2-Figure 4 As shown, there are multiple spray mechanisms 140, and multiple spray mechanisms 140 can increase the spray amount of washing water, increase the water pressure and water volume acting on the tableware area, and thus improve the washing efficiency and cleaning effect of the spray device 100 for the tableware. And multiple first bevel gears 142 are meshed with the second bevel gear 120 at intervals along the circumferential direction of the second bevel gear 120, that is, multiple spray mechanisms 140 are arranged on the fixed seat 130 at intervals along the circumferential direction of the second bevel gear 120. During the rotation process, the first bevel gear 142 can drive the multiple spray mechanisms 140 to make circular motion through the fixed seat 130, so that the spray trajectory of the washing water is more dense and the coverage area is wider. In addition, the second bevel gear 120 can also constrain the multiple spray mechanisms 140 to ensure the synchronization of the spray of the washing water in the multiple spray mechanisms 140, that is, to ensure that the spray speed, spray amount, etc. of the washing water in the multiple spray mechanisms 140 are consistent, further improving the uniformity of the washing of the tableware by the spray device 100, so as to ensure that the tableware placed in different areas can be well washed.

[0062] For example, in this embodiment, the number of the spray mechanisms 140 is 4, and the 4 spray mechanisms 140 are spaced apart along the circumferential direction of the second bevel gear 120. When the tableware placed in the dishwasher 200 needs to be rinsed, the 4 spray mechanisms 140 simultaneously perform reciprocating swings and circular motions on the fixed seat 130 to perform full-area coverage rinses on the tableware. Of course, in other feasible embodiments, the spray mechanisms 140 are not limited to the 4 provided above, but can also be 2, 5, 6 or other numbers. The specific number of the spray mechanisms 140 on the spray device 100 is not limited by this application and can be set according to user needs.

[0063] In order to realize the installation and fixation of multiple spraying mechanisms 140, in one embodiment, as Figure 2-Figure 5 As shown, the fixed seat 130 includes a gear box 134 and a gear cover 135, and the gear cover 135 can cooperate with the gear box 134 to form a closed chamber for the installation of the first bevel gear 142 and the transmission assembly 143. The gear box 134 is arranged on the second bevel gear 120, and the gear box 134 can rotate on the second bevel gear 120 to realize the rotational installation of the fixed seat 130 on the second bevel gear 120. A plurality of spray mechanisms 140 are embedded in the gear cover 135 at intervals along the circumferential direction of the gear cover 135 to realize the installation and fixation of the plurality of spray mechanisms 140, and the layout space requirement of the transmission assembly 143 is small. In addition, the spray arm 141 is located inside the gear box 134, and the spray arm 141 is arranged close to the side wall of the gear box 134. The position of the spray arm 141 can be limited by the side wall of the gear box 134 to prevent the spray arm 141 from moving toward the outside of the gear box 134 under the reaction force of the washing water.

[0064] Furthermore, if Figure 2-Figure 5 As shown, the water inlet seat 113 and the fixed seat 130 are cooperated to form a water inlet chamber 114 for washing water to flow. For example, in the present embodiment, the water inlet chamber 114 is opened inside the water inlet seat 113 and the fixed seat 130. The water inlet 112, the water inlet chamber 114 and the spray hole 1411 are interconnected, and the spray arm 141 is located outside the water inlet chamber 114. The washing water is pressed into the water inlet chamber 114 through the water inlet 112 at a high water pressure by a water pump. During the flow of the washing water, it can be sprayed through the spray hole 1411 to the area where the tableware is placed to rinse the stains on the surface of the tableware. In addition, the spray reaction force of the washing water during the spraying process of the spray hole 1411 can drive the spray arm 141 to swing and move in a circle between the first position and the second position to change the spraying trajectory of the washing water and improve the cleaning effect of the spray device 100 on the tableware.

[0065] In order to prevent leakage of washing water, in one embodiment, Figure 2-Figure 5As shown, a sealing ring 121 is provided at the connection between the second bevel gear 120 and the gear box 134. The sealing ring 121 can prevent the connection between the second bevel gear 120 and the gear box 134 from having a gap, thereby preventing the washing water from leaking from the gap at the connection between the second bevel gear 120 and the gear box 134. On the one hand, it can ensure that the water pressure of the washing water is always maintained in a large range, so that the water pressure of the washing water sprayed on the surface of the tableware is high, so as to better rinse the tableware and improve the cleaning effect of the spray device 100 on the tableware; on the other hand, it can prevent the leakage of washing water from causing adverse effects such as soaking and rusting on the internal components of the dishwasher 200.

[0066] Furthermore, in one embodiment, if Figure 2-Figure 5 As shown, the gear cover 135 is provided with a plurality of clamping platforms 1351, which are arranged at intervals along the circumferential direction of the gear cover 135, and the plurality of clamping platforms 1351 cooperate with the plurality of spray mechanisms 140. Preferably, the number of the clamping platforms 1351 is consistent with the number of the spray mechanisms 140. The first bevel gear 142 is rotatably clamped to the clamping platform 1351. If the clamping platform 1351 has a clamping groove, the third transmission shaft 1421 of the first bevel gear 142 can be clamped in the clamping groove of the clamping platform 1351. The clamping platform 1351 can limit and fix the first bevel gear 142 on the one hand, and can also ensure the rotation accuracy of the first bevel gear 142 on the other hand.

[0067] The working state of the spray device 100 provided in this embodiment is described in detail below with reference to the accompanying drawings.

[0068] like Figure 2-Figure 5 As shown, when it is necessary to rinse the dishes in the dishwasher 200, the washing water is pumped into the water inlet chamber 114 at a high water pressure through the water inlet 112 by the water pump, and sprayed onto the surface of the dishes through the spray hole 1411. When the spray hole 1411 sprays the washing water, the spray arm 141 can be driven to rotate on the fixing seat 130 by the spray reaction force of the washing water. In the initial stage, the spray arm 141 is driven to rotate along the fixing seat 130 under the spray reaction force of the washing water. Figure 6Taking the movement in the V1 direction (counterclockwise) as an example, under the reaction force of the washing water spray, the transmission component 143 moves in the states shown from a1 to a4. At this time, the spray arm 141 drives the first gear 1431 to rotate, so that the third gear 1433 and the fourth gear 1436 are meshed with each other, and the third gear 1433 is separated from the fifth gear 1437. The spray trajectory of the washing water sprayed by the spray arm 141 gradually changes from the dotted line shown in a1 to the dotted line shown in a4. When the third gear 1433 continues to rotate until it meshes with the fifth gear 1437, the third gear 1433 is separated from the fourth gear 1436. The fifth gear 1437 drives the second gear 1432 to reverse under the meshing drive of the third gear 1433. The second gear 1432 applies a rotational reaction force on the first gear 1431. The spray arm 141 on the first gear 1431 takes advantage of the momentum to rotate along Figure 7 The spray arm 141 moves in the direction V2 (clockwise) as shown, and the trajectory of the washing water sprayed by the spray arm 141 gradually changes from the dotted line shown by b1 to the dotted line shown by b4. By repeating the above actions, the spray arm 141 can swing back and forth at a certain angle on the fixing seat 130.

[0069] In this embodiment, there are four spray mechanisms 140, and four first bevel gears 142 are arranged on the second bevel gear 120 at intervals along the circumferential direction of the second bevel gear 120, and the transmission ratio between the second bevel gear 120 and the first bevel gear 142 is 48:10. When the four spray mechanisms 140 synchronously perform the above-mentioned repeated swinging motion and circular motion, within one rotation cycle of the second bevel gear 120, the washing water sprayed by the four spray mechanisms 140 can form Figure 8 The spray trajectory shown in FIG. 1 shows the movement of the spray trajectory. The area formed by the trajectories of the four spray mechanisms 140 is Figure 8 The S2 area is shown in the figure. It can be seen from the figure that the spray trajectory in the S2 area is different from that in the Figure 1 The S1 area shown is more dense and can achieve all-round coverage of the spray area, which can significantly improve the cleaning effect of the spray device 100 on tableware and prevent dead corners during the tableware rinsing process.

[0070] It should be noted that in other feasible embodiments, according to different requirements of the user for the dishware rinsing area, the gear ratios of the first bevel gear 142, the second bevel gear 120, the first gear 1431, the second gear 1432, the third gear 1433, the fourth gear 1436 and the fifth gear 1437 can be adjusted accordingly to obtain different washing water spray trajectories and spray areas.

[0071] In addition, if Fig. 9As shown, the present application further provides a dishwasher 200. The dishwasher 200 comprises a dishwasher body 210 and a spray device 100 as in any one of the above technical solutions, and the spray device 100 is arranged in the dishwasher body 210 by embedding, screwing or the like.

[0072] The above-mentioned dishwasher 200 sets the spray device 100 on the dishwasher body 210, and rinses the tableware contained in the dishwasher body 210 through the reciprocating swing and circular motion of the spray arm 141. The spray trajectory of the washing water is relatively dense and covers a wide area. The dishwasher 200 has a good cleaning effect on the tableware.

[0073] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A spray device, characterized in that: The spraying device (100) comprises: A water inlet member (110), wherein the water inlet member (110) comprises gear teeth (111) and a water inlet (112); A fixed seat (130), the fixed seat (130) being rotatably disposed on the water inlet member (110); At least one spray mechanism (140), the spray mechanism (140) comprising a spray arm (141), a first bevel gear (142) and a transmission assembly (143), the spray arm (141) having at least one spray hole (1411) for spraying washing water, the spray hole (1411) being connected to the water inlet (112), the spray arm (141) being rotatably arranged on the fixed seat (130), the rotation axis of the spray arm (141) and the rotation axis of the fixed seat (130) rotating around the water inlet member (110) having an inclination angle, the first bevel gear (142) 2) is arranged on the fixing seat (130) and meshed with the gear teeth (111) of the water inlet member (110); when the spray arm (141) sprays washing water, the fixing seat (130) rotates on the water inlet member (110), and the first bevel gear (142) rotates on the gear teeth (111) of the water inlet member (110); the transmission assembly (143) is connected to the first bevel gear (142) and the spray arm (141) in a transmission manner; the transmission assembly (143) is used to drive the spray arm (141) to swing back and forth between a first position and a second position.

2. The spray device according to claim 1, characterized in that: The water inlet member (110) comprises a water inlet seat (113) and a second bevel gear (120); the second bevel gear (120) is fixedly connected to the water inlet seat (113); the water inlet (112) is arranged on the water inlet seat (113); and the first bevel gear (142) is meshed with the second bevel gear (120).

3. The spray device according to claim 1, characterized in that: The transmission assembly (143) comprises a first gear (1431), a second gear (1432) and a third gear (1433); the spray arm (141) is fixedly arranged on the first gear (1431); the first gear (1431) and the second gear (1432) are meshed with each other; the third gear (1433) is intermittently transmission-connected to one of the first gear (1431) and the second gear (1432), and is coaxially transmission-connected to the first bevel gear (142).

4. The spray device according to claim 3, characterized in that: The first gear (1431) has a first transmission shaft (1434), the second gear (1432) has a second transmission shaft (1435), the first bevel gear (142) has a third transmission shaft (1421), the spray arm (141) is arranged on the first transmission shaft (1434), and the third gear (1433) is arranged on the third transmission shaft (1421); The transmission assembly (143) also includes a fourth gear (1436) and a fifth gear (1437), wherein the fourth gear (1436) is sleeved on the first transmission shaft (1434), the fifth gear (1437) is sleeved on the second transmission shaft (1435), and the third gear (1433) is intermittently meshed with one of the fourth gear (1436) and the fifth gear (1437).

5. The spray device according to claim 4, characterized in that: The third gear (1433), the fourth gear (1436) and the fifth gear (1437) are all tooth-missing structures, and the tooth-missing structure enables the third gear (1433) to intermittently mesh with one of the fourth gear (1436) and the fifth gear (1437).

6. The spray device according to claim 5, characterized in that: The number of teeth of the third gear (1433) is N, the number of teeth of the fourth gear (1436) and the fifth gear (1437) are both N-1, and during the rotation of the third gear (1433), there is a position where the third gear (1433) ends meshing with the fourth gear (1436) and starts meshing with the fifth gear (1437), and there is another position where the third gear (1433) ends meshing with the fifth gear (1437) and starts meshing with the fourth gear (1436).

7. The spray device according to claim 4, characterized in that: The side wall of the fixing seat (130) is provided with a first mounting hole (131), a second mounting hole (132) and a third mounting hole (133); the first transmission shaft (1434) is rotatably inserted into the first mounting hole (131) along its axial direction; the second transmission shaft (1435) is rotatably inserted into the second mounting hole (132) along its axial direction; and the third transmission shaft (1421) is rotatably inserted into the third mounting hole (133) along its axial direction.

8. The spray device according to claim 2, characterized in that: There are a plurality of the spray mechanisms (140), and a plurality of the first bevel gears (142) are meshed with the second bevel gear (120) at intervals along the circumferential direction of the second bevel gear (120).

9. The spray device according to claim 8, characterized in that: The fixing seat (130) comprises a gear box (134) and a gear cover (135) matched with the gear box (134); the gear box (134) is rotatably arranged on the second bevel gear (120); a plurality of the spray mechanisms (140) are embedded in the gear cover (135) at intervals along the circumferential direction of the gear cover (135); and the spray arm (141) is located inside the gear box (134) and is arranged close to a side wall of the gear box (134).

10. The spray device according to claim 9, characterized in that: The water inlet seat (113) and the fixed seat (130) are cooperated to form a water inlet chamber (114) for washing water to flow; the water inlet (112), the water inlet chamber (114) and the spray hole (1411) are interconnected; and the spray arm (141) is located outside the water inlet chamber (114).

11. The spray device according to claim 10, characterized in that: A sealing ring (121) is provided at the connection between the second bevel gear (120) and the gear box (134).

12. The spray device according to claim 9, characterized in that: A plurality of clamping tables (1351) matching the spray mechanism (140) are arranged at intervals inside the gear cover (135) along its circumferential direction, and the first bevel gear (142) is rotatably clamped to the clamping tables (1351).

13. A dishwasher, characterized in that: The dishwasher (200) comprises: Dishwasher body (210); The spray device (100) according to any one of claims 1 to 12, wherein the spray device (100) is arranged on the dishwasher body (210).

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