Nozzle assembly and cleaning device having the same

Abstract

The present invention relates to a nozzle assembly and a cleaning device having the same, wherein the nozzle assembly comprises: a support seat provided with a first water inlet; and a rotating member rotatably arranged on the support seat, the rotating member being hollow inside to form a hollow cavity, the rotating member having a rotation axis, the outer peripheral surface of the rotating member being provided with at least one fin distributed circumferentially along the rotation axis, and the rotating member being further provided with a plurality of injection ports for spraying water, the injection ports being connected to the hollow cavity; wherein a water flow channel connected to the first water inlet is formed between the support seat and the rotating member, and the fin drives the rotating member to rotate in response to the action of the water flow in the water flow channel. In the above manner, the present invention can effectively increase the radiation area of ​​the sprayed water column, thereby being able to achieve cleaning without dead angles, and has the advantage of good cleaning effect.

Description

[Technical field]

[0001] The present invention relates to the technical field of dishwashers, and in particular to a nozzle assembly and a cleaning device having the nozzle assembly. [Background technology]

[0002] As people's living standards continue to improve, dishwashers, as a kitchen appliance, are increasingly entering households. The bottom of existing dishwashers is generally equipped with a rotatable spray arm, which can spray water columns, and the water columns sprayed from the spray arms can be used to rinse and clean the items to be cleaned. The nozzles on the existing spray arms are usually fixed, and the spray angle of the water column sprayed by the nozzles is also fixed, which cannot achieve all-round spray washing of the nozzles, and there are defects such as a small cleaning area and poor cleaning effect. Therefore, it is necessary to improve the existing technology to overcome the above defects in the existing technology. [Summary of the invention]

[0003] The object of the present invention is to provide a nozzle assembly and a cleaning device having the same, which can effectively increase the radiation area of ​​the spray water column, thereby achieving cleaning without dead angles and having the advantage of good cleaning effect.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A nozzle assembly comprises: a support seat provided with a first water inlet; and a rotating member rotatably disposed on the support seat, the rotating member being hollow inside to form a hollow cavity, the rotating member having a rotation axis, the outer peripheral surface of the rotating member being provided with at least one fin distributed circumferentially along the rotation axis, the rotating member also being provided with a plurality of injection ports for spraying water, the injection ports being connected to the hollow cavity; wherein a water flow channel connected to the first water inlet is formed between the support seat and the rotating member, at least one of the fins being located in the water flow channel to drive the rotating member to rotate in response to the action of the water flow in the water flow channel.

[0006] In one embodiment, the support seat is bowl-shaped to form a receiving cavity, and the rotating member is at least partially received in the receiving cavity.

[0007] In one embodiment, a groove body with open ends is formed on the cavity wall of the accommodating cavity, and the groove body and the outer peripheral surface of the rotating member are surrounded to form the water flow channel.

[0008] In one embodiment, the fin is bent to form a flow-blocking area with the outer circumferential surface of the rotating member.

[0009] In one embodiment, the cross-section of the fin on a plane perpendicular to the rotation axis is at least one of an arc shape, a straight line shape, and a broken line shape.

[0010] In one embodiment, a guide portion is provided at the intersection of the first water inlet and the water flow channel to allow the water to flow toward the flow blocking area.

[0011] In one embodiment, the injection port and the fin are located on the same circumference of the rotating member, wherein the rotating member is supplied with water by the water flow channel.

[0012] In one embodiment, the plurality of injection ports and the plurality of fins are respectively distributed along the circumferential direction of the rotation axis, wherein the injection ports and the fins are located on different circumferences of the rotating member.

[0013] In one embodiment, a water inlet groove with both ends closed for water to enter the injection port is formed between the support seat and the rotating member. The water inlet groove is distributed along the circumferential direction of the rotation axis, and the circumference of the water inlet groove is concentric with the circumference of the injection port.

[0014] In one embodiment, a pair of rotating shafts are further provided on the outer circumferential surface of the rotating member in the direction along the rotating axis, and a second water inlet communicating with the hollow cavity is provided on the rotating shafts.

[0015] To solve the above technical problems, another solution proposed by the present invention is:

[0016] A cleaning device, characterized by comprising the nozzle as described above.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The nozzle assembly and cleaning equipment having the same provided by the present invention utilize the water flow in the water flow channel to impact the fins, so that the rotating part continuously rotates on the support seat, thereby effectively increasing the cleaning radiation area of ​​the injection port, thereby being able to achieve cleaning without dead angles and having the advantage of good cleaning effect.

Brief Description of the Drawings

[0019] Figure 1 It is a stereoscopic diagram of a nozzle assembly provided by the present invention in one embodiment.

[0020] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure.

[0021] Figure 3 yes Figure 1 A three-dimensional view of the support base in FIG.

[0022] Figure 4 yes Figure 1 A three-dimensional view of the rotating part in FIG.

[0023] Figure 5 It is a three-dimensional diagram of the support base in another embodiment of the present invention.

[0024] Figure 6 It is a three-dimensional diagram of the rotating member in another embodiment of the present invention.

[0025] Figure 7 It is a three-dimensional diagram of the support base in another embodiment of the present invention.

[0026] Figure 8 It is a stereoscopic diagram of a rotating member in another embodiment of the present invention.

[0027] Fig. 9 yes Figure 1 Schematic diagram of the rotating part after being provided with a boss.

[0028] Fig.10 It is a stereoscopic diagram of the spray arm in the cleaning device provided by the present invention.

[0029] Fig.11 yes Fig.10 Schematic diagram of the decomposition structure.

[0030] Fig.12 yes Fig.11 Schematic diagram of the cross-sectional structure. [Specific implementation method]

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention rather than all structures are shown in the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] The terms "including" and "having" and any variations thereof in the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] In the prior art, the nozzles in dishwashers are usually fixed on the spray arms, and generally, openings in different directions are provided on the spray arms, so that the nozzles can spray water in different directions. Since the water pressure supplied to the spray arms is relatively fixed, in order to ensure that the spray arms have sufficient water pressure when cleaning, the number of openings on the spray arms is limited, and thus, it is impossible to achieve all-round spray washing by the nozzles, resulting in a small cleaning area and poor cleaning effect.

[0035] In view of this, the present invention provides a nozzle assembly 100, see Figure 1 and Figure 2 The nozzle assembly 100 includes: a support seat 120, which is provided with a first water inlet 121; and a rotating member 110, which can be rotatably arranged on the support seat 120, and the rotating member 110 is internally hollow to form a hollow cavity 111, and the rotating member 110 has a rotation axis L. The outer peripheral surface of the rotating member 110 is provided with at least one fin 113 distributed circumferentially along the rotation axis L, and the rotating member 110 is also provided with a plurality of injection ports 112 for spraying water, and the injection ports 112 are connected to the hollow cavity 111; wherein, a water flow channel 130 connected to the first water inlet 121 is formed between the support seat 120 and the rotating member 110, and at least one fin 113 is located in the water flow channel 130 to drive the rotating member 110 to rotate in response to the action of the water flow in the water flow channel 130.

[0036] Through the above method, the present invention utilizes the water flow in the water flow channel 130 to impact the fins 113, so that the rotating member 110 continuously rotates on the support seat 120, thereby effectively increasing the cleaning radiation area of ​​the injection port 112, thereby achieving cleaning without dead angles, and having the advantage of good cleaning effect.

[0037] In the present invention, please refer to Figure 3 and Figure 4, a pair of rotating shafts 114 are also provided on the outer circumference of the rotating member 110 in the direction along the rotation axis L, and the rotating member 110 is rotatably arranged on the support seat 120 through the rotating shafts 114. A rotating shaft seat 123 for mounting the rotating shaft 114 is provided on the support seat 120, and a rotating shaft hole 1231 cooperating with the rotating shaft 114 is provided on the rotating shaft seat 123, and an opening 1232 is formed in the circumferential direction of the rotating shaft hole 1231, and the rotating shaft 114 can be easily inserted into the rotating shaft hole 1231 by providing the opening 1232. The outer shape of the rotating member 110 is preferably spherical, so as to facilitate the rotation of the rotating member 110 itself. The support seat 120 is used to support the rotating member 110, and the outer shape of the support seat 120 is determined according to the outer shape of the rotating member 110. Preferably, the support seat 120 is bowl-shaped to form an accommodating cavity 122, and the rotating member 110 is at least partially accommodated in the accommodating cavity 122. Of course, in other embodiments, the rotating member 110 may also have other shapes, including but not limited to a spherical shape.

[0038] For the convenience of description, the rotating member 110 is defined as a sphere. After the rotating member 110 is mounted on the support seat 120, the fins 113 provided on the lower spherical surface of the rotating member 110 are located in the water flow channel 130, and the fins 113 provided on the upper spherical surface of the rotating member 110 are located outside the water flow channel 130. When water flows into the water flow channel 130, the fins 113 on the lower spherical surface can drive the rotating member 110 to rotate around the rotation axis L under the impact of the water flow in the water flow channel 130. During the rotation of the rotating member 110, the position of the fin 113 relative to the support seat 120 is constantly changing. Specifically, the fin 113 originally located on the lower spherical surface moves away from the water flow channel 130 after the rotating member 110 rotates, while the fin 113 originally located on the upper spherical surface moves into the water flow channel 130, and this cycle is repeated to ensure that the fin 113 always responds to the action of the water flow in the water flow channel 130 to drive the rotating member 110 to rotate. There are various ways to set up the water flow channel 130. Considering the rotation characteristics of the rotating member 110 and the convenience of implementation, in the present invention, a groove body 1221 with open ends is formed on the cavity wall of the accommodating cavity 122. The groove body 1221 and the outer peripheral surface of the rotating member 110 are jointly formed to form the above-mentioned water flow channel 130. The groove body 1221 and the fin 113 are located on the same circumference with the rotation axis L as the center to ensure that the fin 113 can enter the groove body 1221 when rotating around the rotation axis L. Therefore, the setting structure of the water flow channel 130 is relatively simple and convenient to use. In order to ensure a better fit between the groove body 1221 and the outer circumferential surface of the rotating part 110 and avoid the existence of a gap between the groove body 1221 and the outer circumferential surface of the rotating part 110 to affect the water pressure in the water flow channel 130, in the present invention, the cavity wall of the accommodating cavity 122 is preferably a spherical surface that matches the outer circumferential surface of the rotating part 110, and the groove body 1221 is an arc groove, thereby being able to better improve the fit between the groove body 1221 and the outer circumferential surface of the rotating part 110.

[0039] There are many ways to set the fins 113. In order to enable the rotating member 110 to obtain better rotation ability under the same water pressure, the fins 113 are bent to form a flow blocking area H with the outer peripheral surface of the rotating member 110. The above-mentioned flow blocking area H can gradually reduce the flow cross-section of the water flow in the flow direction toward the fins 113, so that the rotating member 110 can obtain a faster rotation speed. Specifically, the cross-section of the fins 113 on the plane perpendicular to the rotation axis L is at least one of an arc shape, a straight line shape, and a broken line shape.

[0040] Specifically, the fin 113 includes an arc portion 1131 connected to the outer circumference of the rotating member 110 and a straight portion 1132 provided on the arc portion 1131. In the direction from the straight portion 1132 to the arc portion 1131, the distance between the fin 113 and the outer circumference of the rotating member 110 gradually decreases, so that the flow blocking area H gradually narrows. In order to prevent the water column ejected from the injection port 112 from impacting the fin 113, the fin 113 is not provided on the injection path of the injection port 112, so as to ensure the normal water discharge of the injection port 112.

[0041] The injection ports 112 and the fins 113 may be distributed in various ways on the rotating member 110. They may be distributed on the same circumference of the rotating member 110 or on different circumferences of the rotating member 110. Figures 1 to 4 , the injection port 112 and the fin 113 are located on the same circumference of the rotating member 110, wherein the rotating member 110 is supplied with water by the water flow channel 130. At this time, the water in the water flow channel 130 is not only used to drive the rotating member 110 to rotate but also used to supply water to the rotating member 110. The water flow in the water flow channel 130 can enter the hollow cavity 111 through the partial injection port 112 rotating to the water flow channel 130, and then be ejected from the injection port 112 located outside the water flow channel 130. In another embodiment, please refer to Figure 5 and Figure 6 , multiple jets 112 and multiple fins 113 are respectively distributed along the circumferential direction of the rotation axis L, wherein the jets 112 and the fins 113 are located on different circumferences of the rotating member 110. The water flow in the water flow channel 130 is only used to drive the rotating member 110 to rotate. In order to solve the water supply problem of the rotating member 110, a water inlet trough 1222 with closed ends for the jets 112 to enter water is formed between the support seat 120 and the rotating member 110. The water inlet trough 1222 is distributed along the circumferential direction of the rotation axis L, and the circumference where the water inlet trough 1222 is located is concentric with the circumference where the jets 112 are located, and the water inlet trough 1222 is connected to an external water source. In another embodiment, please refer to Figure 7 and Figure 8The injection port 112 and the fin 113 are distributed on different circumferences of the rotating member 110. In the present embodiment, the water flow in the water flow channel 130 is only used to drive the rotating member 110 to rotate. The rotating member 110 is supplied with water through the rotating shaft 114. Specifically, the rotating shaft 114 is provided with a second water inlet 1141 which is connected to the hollow cavity 111. The second water inlet 1141 may be provided on only one side of the rotating shaft 114, or may be provided on both of a pair of rotating shafts 114. The second water inlet 1141 is connected to an external water source.

[0042] In order to prevent water from leaking from the connection between the tank body 1221 and the outer peripheral surface of the rotating member 110 during the flow, in the present invention, refer to Fig. 9 , an annular boss 115 is also formed on the outer circumference of the rotating member 110, the boss 115 is engaged with the groove 1221, and the fins 113 are arranged on the boss 115 at intervals. Preferably, the width of the boss 115 is equal to the width of the groove 1221, so as to improve the sealing performance of the connection between the groove 1221 and the outer circumference of the rotating member 110. Among them, when the injection port 112 and the fins 113 are located on the same circumference of the rotating member 110, the injection port 112 is also arranged on the above-mentioned boss 115.

[0043] In order to make the water flow from the first water inlet 121 into the water flow channel 130 can flow toward the flow blocking area H side of the fin 113, please continue to refer to Figure 2 , attached Figure 2 The hollow arrow in the figure indicates the flow direction of the water flow. In the present invention, a guide portion 1211 is provided at the intersection of the first water inlet 121 and the water flow channel 130, and the guide portion 1211 can make the water flow toward the flow blocking area H. The guide portion 1211 is at least partially in the shape of an arc, a cone, and a broken line.

[0044] It can be understood that the nozzle assembly 100 of the present invention can be applied to different usage scenarios, which are described below with examples.

[0045] The nozzle assembly 100 of the present invention can be applied to a cleaning device. The cleaning device includes the nozzle assembly 100 as described above. The cleaning device can be specifically a dishwasher (not shown), and a spray arm 200 is provided inside the dishwasher. Figures 10 to 12The spray arm 200 is hollow inside to form a water flow channel 230. The spray arm 200 is provided with a second water inlet 210 for water inlet and a plurality of water outlets 220 for water outlet. The second water inlet 210 and the water outlet 220 are respectively connected to the water flow channel 230. The second water inlet 210 has a central axis H. The spray arm 200 can rotate around the central axis H. The plurality of water outlets 220 are arranged at intervals along the extension direction of the water flow channel 230. The support seat 120 of the nozzle assembly 100 is arranged at the water outlet 220. There are many ways to connect the support seat 120 and the water outlet 220, which can be a detachable connection or a fixed connection. There are also many shapes of the spray arm 200. It can be a straight strip as shown in the figure. The water outlets 220 are arranged at intervals along the longitudinal direction of the spray arm 200. The shape of the spray arm 200 can also be "X"-shaped, "cross"-shaped, "rice"-shaped, etc.

[0046] The structures of the spray arm 200 and the nozzle assembly 100 have been fully described above, and a person skilled in the art will understand the following water flow movement process:

[0047] The external water flows into the water flow channel 230 of the spray arm 200 through the second water inlet 210, and the water in the water flow channel 230 enters the water flow channel 130 of the support seat 120 through the water outlet 220. The water in the water flow channel 130 drives the rotating part 110 to rotate while supplying water to the hollow cavity 111 of the rotating part 110, so that the injection port 112 can spray out a water column; the water column sprayed by the injection port 112 can effectively increase the radiation area of ​​the water column under the drive of the rotating part 110, thereby achieving cleaning without dead angles, and has the advantage of good cleaning effect.

[0048] It can be understood that the above specific applications are merely examples of the nozzle assembly 100 in the present invention, and those skilled in the art can make adaptive adjustments according to actual conditions, which will not be elaborated here.

[0049] To sum up, the present invention utilizes the water flow in the water flow channel 130 to impact the fins 113, so that the rotating member 110 rotates continuously on the support seat 120, thereby effectively increasing the cleaning radiation area of ​​the injection port 112, and then being able to achieve cleaning without dead angles, and has the advantage of good cleaning effect; further, the fins 113 are bent and can be clamped with the outer peripheral surface of the rotating member 110 to form a flow blocking area H, and the flow blocking area H can gradually reduce the flow cross-section of the water flow in the flow direction toward the fins 113, so that the rotating member 110 obtains a faster rotation speed; further, a guide portion 1211 is provided at the intersection of the first water inlet 121 and the water flow channel 130, and the guide portion 1211 can make the water flow to the flow blocking area H, and has the advantage of good diversion effect.

[0050] The above is only a specific implementation of the present invention, and any other improvements made based on the concept of the present invention are considered to be within the protection scope of the present invention.

Claims

1. A nozzle assembly (100), characterized in that: include: A support seat (120) is provided with a first water inlet (121); and a rotating member (110) rotatably disposed on the support seat (120); the rotating member (110) is hollow inside to form a hollow cavity (111); the rotating member (110) has a rotating axis L; the outer peripheral surface of the rotating member (110) is provided with at least one fin (113) distributed along the circumference of the rotating axis L; the rotating member (110) is also provided with a plurality of injection ports (112) for injecting water; the injection ports (112) are in communication with the hollow cavity (111); A water flow channel (130) in communication with the first water inlet (121) is formed between the support seat (120) and the rotating member (110); at least one fin (113) is located in the water flow channel (130) to drive the rotating member (110) to rotate in response to the action of the water flow in the water flow channel (130); The outer peripheral surface of the rotating member (110) is further provided with a pair of rotating shafts (114) in the direction along the rotating axis L, and the rotating member (110) is rotatably disposed on the supporting seat (120) via the rotating shafts (114).

2. The nozzle assembly (100) according to claim 1, characterized in that: The support seat (120) is bowl-shaped to form a receiving cavity (122), and the rotating member (110) is at least partially received in the receiving cavity (122).

3. The nozzle assembly (100) according to claim 2, characterized in that: A groove body (1221) with open ends is formed on the cavity wall of the accommodating cavity (122), and the groove body (1221) and the outer peripheral surface of the rotating member (110) are arranged to form the water flow channel (130).

4. The nozzle assembly (100) according to claim 1, characterized in that: The fin (113) is bent to be clamped with the outer peripheral surface of the rotating member (110) to form a flow blocking area H.

5. The nozzle assembly (100) according to claim 1, characterized in that: The cross-section of the fin (113) on a plane perpendicular to the rotation axis L is at least one of an arc shape, a straight line shape, and a broken line shape.

6. The nozzle assembly (100) according to claim 4, characterized in that A guide portion (1211) is provided at the intersection of the first water inlet (121) and the water flow channel (130) for directing the water flow toward the flow blocking area H.

7. The nozzle assembly (100) according to claim 1, characterized in that: The injection port (112) and the fin (113) are located on the same circumference of the rotating member (110), wherein the rotating member (110) is supplied with water by the water flow channel (130).

8. The nozzle assembly (100) according to claim 1, characterized in that The plurality of injection ports (112) and the plurality of fins (113) are respectively distributed along the circumferential direction of the rotation axis L, wherein the injection ports (112) and the fins (113) are located on different circumferences of the rotating member (110).

9. The nozzle assembly (100) according to claim 8, characterized in that A water inlet groove (1222) with two closed ends for water intake to the injection port (112) is also formed between the support seat (120) and the rotating member (110); the water inlet groove (1222) is distributed along the circumferential direction of the rotation axis L; the circumference of the water inlet groove (1222) is concentric with the circumference of the injection port (112).

10. The nozzle assembly (100) according to claim 8, characterized in that The rotating shaft (114) is provided with a second water inlet (1141) which is in communication with the hollow cavity (111).

11. A cleaning device, characterized in that: The invention comprises a nozzle assembly (100) according to any one of claims 1 to 10.

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