Spraying head and spraying mechanism

Abstract

The utility model relates to the technical field of spraying mechanisms for dish washing machines, in particular to a spraying head and a spraying mechanism. The spraying head comprises a first connector and a rotary spraying head, the first connector is used for being connected with an inner water pipe, the rotary spraying head is sleeved with a support, and the support is detachably connected with the first connector; the first connector is provided with a first channel for water to pass through, the rotary spray head is provided with a water containing cavity and a plurality of circulation channels for water to flow out, the first channel, the water containing cavity and the circulation channels are communicated with one another, a hollow structure is arranged on the side edge of the support, and a pin shaft is arranged at the bottom of the support. A containing groove matched with the pin shaft is formed in the bottom of the rotating spray head, and the rotating spray head can rotate on the support with the pin shaft as a rotating shaft. The pin shaft provides a rotating supporting point for the rotating spray head, it is guaranteed that the rotating spray head can stably rotate around the pin shaft, a traditional arm type structure is replaced through the arrangement, and the occupied space is saved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of a spraying mechanism for a dishwasher, in particular to a spraying head and a spraying mechanism. BACKGROUND

[0002] The dish cleaning function in the dishwasher is mainly completed by the spraying mechanism. The pressurized water flow in the dishwasher is sprayed out from the spraying mechanism, directly or indirectly washing the food residues on the dishes to achieve the cleaning effect of the dishes. The dishwasher on the market mainly installs a lower spraying arm, an upper spraying arm and a middle spraying arm, which sprays water flow at three different positions to maximize the washing and splashing range of the water flow.

[0003] Patent No. 202421030350.8 discloses a spraying arm mechanism, which includes rotatable upper, middle and lower spraying arms and has a large cleaning range. However, the space available for installing the spraying arm is limited inside the dishwasher, which usually needs to place upper and lower baskets and dishes. In particular, the position of the upper basket, the upper spraying arm may interfere with the dishes when rotating, resulting in the upper spraying arm not working properly. The upper spraying arm may even hit the dishes, causing damage to the dishes. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies or problems in the prior art, the present disclosure provides a spraying head and a spraying mechanism. The spraying head structure is compact and can provide sufficient avoidance space for the upper basket and dishes.

[0005] The technical solution adopted by the present disclosure to solve the above technical problems is: a spraying head, comprising a first connector and a rotating spray head, the first connector is used to connect an inner water pipe, the rotating spray head is externally sleeved with a support, the support is detachably connected with the first connector, the first connector is provided with a first channel for water to pass through, the rotating spray head is provided with a water containing cavity and a plurality of flow-through channels for water to flow out, the first channel, the water containing cavity and the plurality of flow-through channels are in communication with each other, the side of the support is provided with a hollow structure, the bottom of the support is provided with a pin shaft, the bottom of the rotating spray head is provided with an accommodating groove matched with the pin shaft, and the rotating spray head can rotate on the support with the pin shaft as the rotating shaft.

[0006] As a preferred embodiment, the rotating spray head includes a disc-shaped bottom surface and a plurality of protrusions arranged on the bottom surface, the plurality of protrusions are arranged in a circumferential shape, and the plurality of protrusions are arranged around the water containing cavity, and a gap is arranged between adjacent protrusions, which is the flow-through channel.

[0007] As a preferred embodiment, the two sides of the protrusion are respectively provided with a first arc surface and a second arc surface, and the flow-through channel is the gap formed between the first arc surface of the previous protrusion and the second arc surface of the next protrusion.

[0008] As a preferred embodiment, the bottom surface of the rotating nozzle comprises a middle part and an edge part, the accommodating groove is arranged in the middle part, the edge part is arranged outside the middle part, the height of the middle part gradually decreases from the accommodating groove to the edge part, and the edge part is provided with a first inclined surface.

[0009] As a preferred embodiment, the accommodating groove is arranged on the outer surface of the bottom surface of the rotating nozzle, and the accommodating groove protrudes upward from the bottom surface of the rotating nozzle.

[0010] As a preferred embodiment, the outer surface of the bottom surface of the rotating nozzle is provided with a plurality of first protrusions arranged uniformly in the circumferential direction, and a first drainage groove is arranged between two adjacent first protrusions.

[0011] As a preferred embodiment, the inner side of the first protrusion is provided with a plurality of second protrusions arranged uniformly in the circumferential direction, a second drainage groove is arranged between two adjacent second protrusions, and the accommodating groove is located on the inner side of the second protrusion.

[0012] As a preferred embodiment, the pin shaft comprises a columnar body and a conical structure arranged on the columnar body, and the accommodating groove is a conical structure.

[0013] As a preferred embodiment, the two sides of the bracket are respectively provided with first clamping members, the two sides of the first connector are respectively provided with second clamping members, and the first clamping members and the second clamping members are matched to connect the bracket and the first connector.

[0014] As a preferred embodiment, a locking member is further included, and the first connector is connected with the inner container of the dishwasher through the locking member.

[0015] As a preferred embodiment, the locking member is provided with a lock hole, the first connector is provided with a lock catch matched with the lock hole, and the connection between the locking member and the first connector is realized through a rotating action.

[0016] Another purpose of the present application is to provide a spraying mechanism, which comprises an inner water pipe and the above-mentioned spraying head, the spraying head is arranged at the top of the inner water pipe, and the inner water pipe is further connected with a middle spraying arm, a bottom spraying arm and an auxiliary spraying arm.

[0017] As a preferred embodiment, the first connector is provided with a third clamping member, the inner water pipe is provided with a fourth clamping member, and the third clamping member and the fourth clamping member are matched to connect the first connector and the inner water pipe.

[0018] Compared with the prior art, the first joint is adopted to connect the inner water pipe, the support is connected with the first joint, the bottom of the support is provided with a pin shaft, the pin shaft provides a rotating support point for the rotating spray head, so that the rotating spray head can stably rotate around the shaft, such a structure replaces the traditional arm type structure, saves the occupied space, avoids the interference between the spray head and the tableware, the precise cooperation between the accommodating groove and the pin shaft makes the rotating process of the rotating spray head more stable and flexible, and the shaking or jamming phenomenon is avoided, so that the spraying effect is ensured, and the multiple water flow channels arranged on the rotating spray head realize the wider and more uniform spraying coverage. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be described in further detail below in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and thus should not be regarded as limiting the scope of the application. In addition, unless specifically indicated, the drawings only schematically represent the composition or structure of the described objects and can include exaggerated display, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 is an exploded view of a spray head of the present disclosure;

[0021] Figure 2 is a structural schematic view of a first joint of the present disclosure;

[0022] Figure 3 is a structural schematic view of a locking piece of the present disclosure;

[0023] Figure 4 is a structural schematic view of a rotating spray head in a support of the present disclosure;

[0024] Figure 5 is one of the structural schematic views of the rotating spray head of the present disclosure;

[0025] Figure 6 is the second structural schematic view of the rotating spray head of the present disclosure;

[0026] Figure 7 is a sectional view of the rotating spray head of the present disclosure;

[0027] Figure 8 is one of the structural schematic views of the support of the present disclosure;

[0028] Figure 9 is the second structural schematic view of the support of the present disclosure;

[0029] Figure 10 is one of the structural schematic views of a spraying mechanism of the present disclosure;

[0030] Figure 11 is the second structural schematic view of the spraying mechanism of the present disclosure; Figure 10A local enlarged view at the middle A;

[0031] Figure 12 is a structural schematic view of a spraying mechanism of the present disclosure.

[0032] Legend:

[0033] 1, rotating nozzle; 2, support; 3, first joint; 4, locking piece; 5, head; 6, tail; 7, first clamping piece; 8, second clamping piece; 9, third clamping piece; 10, flow passage; 11, pin shaft; 12, containing groove; 13, first inclined surface; 14, hollow structure; 15, first convex strip; 16, second convex strip; 17, lock catch; 18, lock hole; 19, recessed structure; 20, protruding block; 21, first water drainage groove; 22, second water drainage groove; 23, spraying head; 24, inner water pipe; 25, middle spraying arm; 26, bottom spraying arm; 27, auxiliary spraying arm. DETAILED DESCRIPTION

[0034] In order for those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present disclosure and do not limit the present disclosure.

[0035] Those skilled in the art should understand that in the disclosure of the present utility model, the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as limiting the present utility model.

[0036] Please refer to Figure 1 , Figure 4 , Figure 5 , Figure 7 and Figure 9As shown, the present disclosure provides a spray head for a spray mechanism of a dishwasher, which comprises a first connector 3 for connecting an inner water pipe 24 and a rotary spray head 1, an outer sleeve of the rotary spray head 1 is provided with a support 2, the support 2 is detachably connected with the first connector 3, the first connector 3 is provided with a first channel for water to pass through, the rotary spray head 1 is provided with a water containing cavity and a plurality of flow-through channels 10 for water to flow out, the first channel, the water containing cavity and the plurality of flow-through channels 10 are in communication with each other, the side edge of the support 2 is provided with a hollow structure 14, the bottom of the support 2 is provided with a pin shaft 11, the bottom of the rotary spray head 1 is provided with an accommodating groove 12 matched with the pin shaft 11, under the action of water flow, the rotary spray head 1 can rotate on the support 2 with the pin shaft 11 as the rotation shaft. It can be understood that the water of the inner water pipe 24 enters the first connector 3 through the water inlet end of the first channel, and then enters the water containing cavity through the water outlet end of the first channel, and finally flows out through each flow-through channel 10, thereby realizing the cleaning of tableware. The present application no longer adopts the traditional arm type structure, but sets a more compact rotary spray head 1 to clean the tableware, which is simple in structure and more space-saving. The bottom of the support 2 is provided with a pin shaft 11, which provides a rotary support point for the rotary spray head 1, so as to ensure that the rotary spray head 1 can stably rotate around the shaft, and the precise matching of the accommodating groove 12 and the pin shaft 11 makes the rotary process of the rotary spray head 1 more stable and flexible, and the shaking or jamming phenomenon does not occur, thereby ensuring the spraying effect; the rotary spray head 1 is provided with a plurality of flow-through channels 10 for water to flow out, thereby realizing a wider and more uniform spraying coverage. The side edge of the support 2 is provided with a hollow structure 14, which can reduce the weight of the support 2, so that the whole spray head 23 is more portable, convenient to install and use, and more importantly, the hollow structure 14 can also be regarded as a water flow channel, so that the water of each flow-through channel 10 flows out through the hollow structure 14.

[0037] In particular, the rotary spray head 1 comprises a disc-shaped bottom surface and a plurality of protrusions 20 arranged on the bottom surface, the plurality of protrusions 20 are arranged in a circumferential shape, and the plurality of protrusions 20 are arranged around the water containing cavity, and a gap is arranged between adjacent protrusions 20, which is the flow-through channel 10. Preferably, the two sides of the protrusion 20 are respectively provided with a first arc surface and a second arc surface, and the flow-through channel 10 is the gap between the first arc surface of the previous protrusion 20 and the second arc surface of the next protrusion 20. In this way, the two side edges of the flow-through channel 10 are both arc structures. When the water flow enters the water containing cavity, the rotary spray head 1 starts to rotate under the action of the water flow, and with the rotation of the rotary spray head 1, the water in the water containing cavity is thrown out in a parabolic shape under the action of centrifugal force, and the arrangement of the arc structure of the two side edges of the flow-through channel 10 conforms to the actual movement route of the water when being thrown out, in addition, the arc structure also plays a guiding role, so that the water flow is sprayed more widely along the channel of the arc structure.

[0038] In order to reduce the weight of the whole shower head 23, the protrusions 20 are hollow structures. In the present application, there are four protrusions 20, and there are four flow channels 10. It can be understood that the number of protrusions 20 and flow channels 10 can also be more or less according to actual needs.

[0039] Please continue to see Figure 5 and Figure 7 Further, the bottom surface of the rotating shower head 1 includes a middle part and an edge part, the receiving groove 12 is arranged in the middle part, and the edge part is arranged outside the middle part, that is, the edge part is arranged in the outer ring of the middle part. The receiving groove 12 is arranged on the outer surface of the bottom surface of the rotating shower head 1, and the receiving groove 12 protrudes upward from the bottom surface of the rotating shower head 1, that is, the receiving groove 12 protrudes from the upper surface of the bottom surface of the rotating shower head 1. Such arrangement can reduce the height of the whole shower head 23, and further save space. In addition, the receiving groove 12 protrudes from the upper surface of the bottom surface of the rotating shower head 1, and when the rotating shower head 1 rotates, it is more stable.

[0040] Please see Figure 8 and Figure 9 The pin shaft 11 includes a cylindrical body and a tapered structure arranged on the cylindrical body, and the receiving groove 12 is a tapered structure. The arrangement of the tapered structure can reduce the friction between the rotating shower head 1 and the pin shaft 11 when the rotating shower head 1 rotates, so that the rotation of the rotating shower head 1 is smoother and less likely to jam.

[0041] As shown in Figure 5 and Figure 7 In order to make the water flow more easily from the receiving cavity, the height of the middle part gradually decreases in the direction from the receiving groove 12 to the edge part, and the edge part is provided with a first inclined surface 13. More specifically, the first inclined surface 13 is arranged on the outside of the edge part, that is, the side away from the middle part, so that the water flow flows out under the action of centrifugal force and gravity.

[0042] Please see Figure 6As shown, in order to make the rotating nozzle 1 more stable when rotating, the outer surface of the bottom surface of the rotating nozzle 1 is provided with a plurality of first protrusions 15 arranged uniformly in the circumferential direction, and a first water drainage groove 21 is arranged between two adjacent first protrusions 15. On the one hand, the plurality of first protrusions 15 can play a balancing role when the rotating nozzle 1 rotates, avoiding tilting; on the other hand, the plurality of first protrusions 15 can also act as a guide rail, playing a guiding role. Preferably, the inner side of the first protrusion 15 is provided with a plurality of second protrusions 16 arranged uniformly in the circumferential direction, a second water drainage groove 22 is arranged between two adjacent second protrusions 16, and the accommodating groove 12 is located on the inner side of the second protrusion 16. The second protrusion 16 has the same effect as the first protrusion 15, and the arrangement of the second protrusion 16 further improves the stability of the rotating nozzle 1 when rotating. The arrangement of the first water drainage groove 21 and the second water drainage groove 22 is convenient for water drainage and circulation, preventing a large amount of water from accumulating between the rotating nozzle 1 and the bottom of the support 2, thereby affecting the stability of the rotating nozzle 1 when rotating.

[0043] As shown in Figure 2 and Figure 8 , the support 2 is provided with a first clamping piece 7 on each side, and the first connector 3 is provided with a second clamping piece 8 on each side, and the first clamping piece 7 and the second clamping piece 8 cooperate to connect the support 2 and the first connector 3. Specifically, the first clamping piece 7 is arranged on the upper part of the hollow structure 14, the first clamping piece 7 is a clamping groove, the second clamping piece 8 is a clasp, and the support 2 and the first connector 3 are clamped.

[0044] As shown in Figure 2 and Figure 3 , in an embodiment of the present disclosure, a locking piece 4 is further included, and the first connector 3 is connected with the inner tank of the dishwasher through the locking piece 4. Specifically, the locking piece 4 is arranged on the outside (above) of the inner tank, and the locking piece 4 is a locking nut. The locking piece 4 is provided with a lock hole 18, and the head 5 of the first connector 3 is provided with a lock catch 17 matched with the lock hole 18, and the connection between the locking piece 4 and the first connector 3 is realized through a rotating action. Such a connection mode is simple and reliable, and is convenient for installation and disassembly. In order to further facilitate installation and disassembly, a plurality of recessed structures 19 for manual force are arranged on the outer periphery of the locking piece 4.

[0045] Please refer to Figure 2 , Figures 10-12As shown, the embodiment of the present disclosure provides a spraying mechanism, which comprises an inner water pipe 24 and the spraying head 23 described in the above embodiment, the spraying head 23 is arranged at the top of the inner water pipe 24, and the inner water pipe 24 is further connected with a middle spraying arm 25, a bottom spraying arm 26 and an auxiliary spraying arm 27. Specifically, the first joint 3 comprises a head 5 and a tail 6, the second clamping piece 8 is arranged at the head 5, the tail 6 is provided with a third clamping piece 9 at both sides, the corresponding position of the inner water pipe 24 is provided with two fourth clamping pieces, and the third clamping piece 9 and the fourth clamping piece are matched to connect the first joint 3 with the inner water pipe 24. More specifically, the third clamping piece 9 is a buckle, the fourth clamping piece is a clamping groove, and the inner water pipe 24 is clamped with the first joint 3.

[0046] The locking piece 4 of the present application is arranged outside the inner container, the first joint 3 is connected with the locking piece 4, the first joint 3 is fixed on the inner container, the first joint 3 is connected with the inner water pipe 24 in a clamping manner, so that the first joint 3 is well fixed; the bracket 2 is clamped with the first joint 3, and the rotating spray head 1 is arranged inside the bracket 2, so that the spraying head 23 is well and stably connected with the inner container and the inner water pipe 24.

[0047] The above describes the present application in detail, the principle and implementation mode of the present application are described by applying specific examples in the text, and the above embodiment is only used to help understand the present application and the core idea. It should be pointed out that, for ordinary skilled in the art, some improvements and modifications can be made to the present application without departing from the principle of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A showerhead, characterized by, The utility model provides a rotatable shower head, which comprises a first joint (3) for connecting an inner water pipe (24) and a rotating shower head (1), an outer sleeve of the rotating shower head (1) is provided with a support (2), the support (2) is detachably connected with the first joint (3), the first joint (3) is provided with a first channel for water supply, the rotating shower head (1) is provided with a water containing cavity and a plurality of flow channels (10) for water outflow, the first channel, the water containing cavity and the plurality of flow channels (10) are communicated with each other, the side edge of the support (2) is provided with a hollow structure (14), the bottom of the support (2) is provided with a pin shaft (11), the bottom of the rotating shower head (1) is provided with an accommodating groove (12) matched with the pin shaft (11), and the rotating shower head (1) can rotate on the support (2) with the pin shaft (11) as a rotating shaft.

2. The showerhead of claim 1, wherein The rotating shower head (1) comprises a disc-shaped bottom surface and a plurality of protrusions (20) arranged on the bottom surface, the plurality of protrusions (20) are arranged in a circumferential shape, and the plurality of protrusions (20) are arranged around the water containing cavity, and a gap is arranged between adjacent protrusions (20), and the gap is the flow channel (10).

3. The showerhead of claim 2, wherein The two sides of the protrusion (20) are respectively provided with a first arc surface and a second arc surface, and the flow channel (10) is the gap formed between the first arc surface of the previous protrusion (20) and the second arc surface of the next protrusion (20).

4. The showerhead of claim 1, wherein The bottom surface of the rotating shower head (1) comprises a middle part and an edge part, the accommodating groove (12) is arranged in the middle part, the edge part is arranged on the outside of the middle part, the height of the middle part gradually decreases from the accommodating groove (12) to the edge part, and the edge part is provided with a first inclined surface (13).

5. The showerhead of claim 1, wherein The outer surface of the bottom surface of the rotating shower head (1) is provided with a plurality of first protrusions (15) arranged uniformly in the circumferential direction, and a first water discharge groove (21) is arranged between adjacent two first protrusions (15).

6. The showerhead of claim 5, wherein, The inner side of the first protrusion (15) is provided with a plurality of second protrusions (16) arranged uniformly in the circumferential direction, a second water discharge groove (22) is arranged between adjacent two second protrusions (16), and the accommodating groove (12) is located on the inner side of the second protrusion (16).

7. The showerhead of claim 1, wherein The pin shaft (11) comprises a columnar body and a conical structure arranged on the columnar body, and the accommodating groove (12) is a conical structure.

8. The showerhead of claim 1, wherein The utility model also comprises a locking member (4), and the first joint (3) is connected with the inner container of the dishwasher through the locking member (4).

9. The showerhead of claim 8, wherein, The locking member (4) is provided with a lock hole (18), the first joint (3) is provided with a lock buckle (17) matched with the lock hole (18), and the connection between the locking member (4) and the first joint (3) is realized through a rotating operation.

10. A dishwasher, characterized in that The utility model provides a rotatable shower head, which comprises a first joint (3) for connecting an inner water pipe (24) and a rotating shower head (1), an outer sleeve of the rotating shower head (1) is provided with a support (2), the support (2) is detachably connected with the first joint (3), the first joint (3) is provided with a first channel for water supply, the rotating shower head (1) is provided with a water containing cavity and a plurality of flow channels (10) for water outflow, the first channel, the water containing cavity and the plurality of flow channels (10) are communicated with each other, the side edge of the support (2) is provided with a hollow structure (14), the bottom of the support (2) is provided with a pin shaft (11), the bottom of the rotating shower head (1) is provided with an accommodating groove (12) matched with the pin shaft (11), and the rotating shower head (1) can rotate on the support (2) with the pin shaft (11) as a rotating shaft.

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