Spraying arm and spraying head assembly and dish washing machine

Abstract

A spraying arm nozzle assembly comprises a spraying arm body with an upward spraying opening and further comprises a fixing base and a steering part, the fixing base is connected to the spraying arm body and provided with a vertical spraying pipe, the lower end of the spraying pipe is communicated to the spraying opening, the upper portion of the steering part is provided with a steering blade, and the lower portion of the steering part is provided with a vertical sleeve. A water outlet hole is formed in the upper end of the sleeve, a sleeve hole is formed in the lower end of the sleeve, the sleeve hole of the sleeve is rotationally connected to the upper end of the spray pipe in a sleeving mode, the upper end of the spray pipe is communicated with the water outlet hole, and the steering blade is located above the water outlet hole so that water flow sprayed upwards from the water outlet hole can be diffused into a sheet-shaped water curtain after passing through the steering blade. According to the scheme, sheet-shaped water curtains are diffused through guiding of the steering blades, and a larger cleaning coverage area is achieved; meanwhile, due to the fact that the sleeve is rotationally connected with the spray pipe in a sleeved mode, a user can adjust the water flow guiding direction of the steering blade by rotating the steering piece, the cleaning coverage area is further enlarged, and the better cleaning effect is achieved. The invention further provides the dish washing machine.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to a spray arm spray head assembly and a dishwasher. Background Art

[0002] The main structure of a dishwasher includes a washing basket formed by a basket net and a spray arm arranged adjacent to the washing basket. The spray arm usually has multiple spray holes. The working principle is to spray a number of water jets through the rotating spray arm to flush the tableware in the washing basket, thereby achieving the normal cleaning function of the tableware.

[0003] However, due to the uncertainty of the shape and degree of dirtiness of the utensils to be washed in actual use, the current solution is to add a regional strong washing spray arm in addition to the conventional spray arm, and use the nozzle of the regional strong washing spray arm to strengthen the washing of some specific tableware, such as deep cups or some heavily dirty tableware. However, this solution has a limited cleaning coverage area and a limited cleaning effect because the nozzle of the regional strong washing spray arm is fixed, and the current nozzle holes are all round or square in shape, and the water flow sprayed from the nozzle is columnar and fixed in direction. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the nozzles in the prior art are fixedly arranged, and the shapes of the nozzle holes of the current nozzles are round or square, and the water flow sprayed from the nozzle holes is columnar and has a fixed direction, resulting in limited cleaning coverage area and limited cleaning effect.

[0005] In order to solve the above problems, the present invention provides a spray arm nozzle assembly, including a spray arm body with an upward nozzle, and also including a fixed seat and a steering member, the fixed seat is connected to the spray arm body, and the fixed seat is provided with a vertical nozzle, the lower end of the nozzle is connected to the nozzle, the upper part of the steering member is a steering blade and the lower part is a vertical sleeve, the upper end of the sleeve is provided with a water outlet and the lower end is provided with a sleeve hole, the sleeve hole of the sleeve is rotatably sleeved to the upper end of the nozzle, and the upper end of the nozzle is connected to the water outlet, the steering blade is located above the water outlet so that the water sprayed upward from the water outlet is diffused into a sheet-like water curtain after passing through the steering blade.

[0006] Compared with the prior art, the above scheme adds a fixing seat and a steering member to the spray arm body, wherein the nozzle of the fixing seat is used to guide the water flow of the nozzle upward, and the sleeve of the steering member is rotatably sleeved on the upper end of the nozzle through the sleeve hole, so that the water flow sprayed upward from the nozzle will be sprayed upward from the water outlet, and then diffused into a sheet-like water curtain under the guidance of the steering blade, thereby achieving a larger cleaning coverage area; at the same time, since the sleeve and the nozzle are rotatably sleeved, the steering member can rotate freely around the nozzle, so that the user can adjust the guiding direction of the steering blade on the water flow by rotating the steering member, thereby further improving the cleaning coverage area and achieving a better cleaning effect.

[0007] In an improved solution, the side of the turning blade facing the water outlet is a flow channel, and the flow channel is designed to extend upward from one side of the X-axis direction of the water outlet, and gradually bend from bottom to top toward the other side of the X-axis direction of the water outlet, so that the water flow sprayed from the water outlet can be guided by the flow channel into a sheet-like water curtain.

[0008] In an improved solution, the side of the deflecting blade facing the water outlet is a flow channel, and the flow channel is designed to be shaped so as to cause the deflecting blade and the sleeve to rotate around the nozzle when the force applied by the water flow sprayed upward from the water outlet is applied. Thus, when the water flow is sprayed upward from the water outlet, the deflecting blade and the sleeve can automatically rotate around the nozzle to achieve 360-degree cleaning.

[0009] In an improved solution, the flow channel is designed to extend upward from one side of the X-axis direction of the water outlet, and gradually bend from bottom to top toward the other side of the X-axis direction of the water outlet, and at the same time gradually bend from bottom to top toward either side of the Y-axis direction of the water outlet, so that when the flow channel is subjected to the force exerted by the water flow sprayed upward from the water outlet, the turning blade and the sleeve can be caused to rotate around the nozzle.

[0010] In an improved solution, baffles are provided on both vertical sides of the flow channel to form a semi-open structure of the flow channel, ensuring that the water sprayed upward from the water outlet can be better diffused upward through the flow channel, reducing the probability of water flowing out from the vertical sides.

[0011] In an improved solution, the width of the upper side of the flow channel is greater than the width of the lower side, so that a wider sheet-like water curtain is formed in the process of water flowing from bottom to top.

[0012] In an improved solution, the difference between the width of the upper side and the width of the lower side of the flow channel is at least 5 mm. Within this numerical range, the water flow can more stably form a sheet-like water curtain from bottom to top.

[0013] In an improved solution, the upper side of the flow channel is offset H by at least 2 mm relative to the axis of the nozzle, thereby achieving a more obvious guiding effect on the water flow sprayed upward from the water outlet, while also allowing the flow channel to be subjected to a sufficiently large force exerted by the water flow.

[0014] In an improved solution, the depth S of the upper side of the flow channel gradually decreases along the Y-axis direction, so as to better guide the water flow sprayed upward from the water outlet.

[0015] In an improved solution, a rotating shaft is provided on the upper side of the steering vane and the rotating shaft is coaxial with the sleeve, the fixing seat is provided with a receiving member located above the steering member, a rotating hole is provided on the lower side of the receiving member and the rotating hole is coaxial with the nozzle, the rotating shaft is rotatably plugged into the rotating hole, thereby improving the stability of the steering member when rotating around the nozzle through the rotating hole of the receiving member and the rotating shaft of the steering vane, and realizing the vertical limitation of the steering member.

[0016] In an improved solution, the rotating hole is a blind hole with a closed upper end, and the upper end of the rotating shaft abuts against the bottom of the rotating hole to achieve axial limiting.

[0017] In an improved solution, the fixing seat is provided with a rib bracket extending from bottom to top and bypassing the steering member, the upper end of the rib bracket is located above the steering member, the upper end of the rib bracket is provided with a vertical mounting hole, the receiving member is a positioning pin and can be detachably inserted into the mounting hole, thereby realizing convenient disassembly and assembly of the receiving member and convenient maintenance.

[0018] In an improved solution, the rib support is annular, the steering member is located on the inner side of the rib support, and the lateral width D of the inner side of the rib support at any height is greater than the rotational outer diameter B of the steering member at the same height when rotating around the nozzle, thereby avoiding interference between the steering member and the rib support when rotating around the nozzle.

[0019] The present invention also provides a dishwasher, comprising the spray arm spray head assembly as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of a spray arm spray head assembly; Figure 2 It is an exploded schematic diagram of a spray arm body and a fixing seat of a spray arm spray head assembly; Figure 3 It is an exploded schematic diagram of a fixing seat and a steering member of a spray arm spray head assembly; Figure 4 A schematic cross-sectional view of a fixing seat and a steering member of a spray arm spray head assembly; Figure 5 It is a front view schematic diagram of a fixing seat and a steering member of a spray arm spray head assembly; Figure 6 It is a front view schematic diagram of a steering member of a spray arm spray head assembly; Figure 7 For along Figure 6 Schematic cross-sectional view of the AA section line; Figure 8 For along Figure 6 Schematic cross-sectional view of the CC section line.

[0021] Description of reference numerals: 1. Spray arm body; 11. Nozzle; 2. Fixed seat; 21. Spray pipe; 22. Receiver; 221. Rotating hole; 23. Rib bracket; 231. Mounting hole; 3. Steering member; 31. Steering blade; 311. Flow channel; 312. Baffle bar; 32. Sleeve; 321. Water outlet; 322. Sleeve hole; 33. Rotating shaft. DETAILED DESCRIPTION

[0022] It should be understood by those skilled in the art that the following embodiments are only used to explain the technical principles of the embodiments of the present application and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art may adjust them as needed to adapt to specific application scenarios.

[0023] In the description of the following embodiments, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0024] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a 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. A first feature being "below", "below" or "below" a 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.

[0025] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1: Please refer to Figure 1-Figure 8 A spray arm spray head assembly provided in Example 1 of the present invention includes a spray arm body 1 having an upward spray port 11, a fixing seat 2 and a steering member 3, the fixing seat 2 is connected to the spray arm body 1, and the fixing seat 2 is provided with a vertical spray pipe 21, the lower end of the spray pipe 21 is connected to the spray port 11, the upper part of the steering member 3 is a steering blade 31 and the lower part is a vertical sleeve 32, the upper end of the sleeve 32 is provided with a water outlet 321 and the lower end is provided with a sleeve hole 322, the sleeve hole 322 of the sleeve 32 is rotatably sleeved to the upper end of the spray pipe 21, and the upper end of the spray pipe 21 is connected to the water outlet 321, the steering blade 31 is located above the water outlet 321 so that the water sprayed upward from the water outlet 321 spreads into a sheet-like water curtain after passing through the steering blade 31.

[0027] The above scheme is achieved by adding a fixing seat 2 and a steering member 3 to the spray arm body 1, wherein the nozzle 21 of the fixing seat 2 is used to guide the water flow of the nozzle 11 upward, and the sleeve 32 of the steering member 3 is rotatably sleeved on the upper end of the nozzle 21 through the sleeve hole 322, so that the water flow sprayed upward from the nozzle 21 will be sprayed upward from the water outlet 321, and then diffused into a sheet-like water curtain under the guidance of the steering blade 31, thereby achieving a larger cleaning coverage area; at the same time, since the sleeve 32 and the nozzle 21 are rotatably sleeved, the steering member 3 can rotate freely around the nozzle 21, so that the user can adjust the guiding direction of the water flow by the steering blade 31 by rotating the steering member 3, further improving the cleaning coverage area and achieving a better cleaning effect.

[0028] by Figure 1 As a reference, the fixing seat 2 is connected to the upper side of the spray arm body 1. Regarding the specific connection form between the fixing seat 2 and the spray arm body 1, it can be that an external thread is set on the fixing seat 2, and a screw hole is set on the spray arm body 1, and the two are screwed together; or the fixing seat 2 can also be connected to the spray arm body 1 by bolts, which is not limited in this design.

[0029] More specifically, combined Figure 7 As shown, in the above embodiment, one side of the turning blade 31 facing the water outlet 321 is the flow channel 311, and the flow channel 311 is designed to extend upward from one side of the X-axis direction of the water outlet 321, and gradually bend from bottom to top toward the other side of the X-axis direction of the water outlet 321, so that the water flow sprayed from the water outlet 321 can be guided by the flow channel 311 into a sheet-like water curtain.

[0030] As an improvement to the above embodiment, a flow channel 311 is provided on one side of the deflecting blade 31 facing the water outlet 321. The flow channel 311 is designed to be shaped so as to cause the deflecting blade 31 and the sleeve 32 to rotate around the nozzle 21 when the force applied by the water flow sprayed upward from the water outlet 321 is applied. Thus, when the water flow is sprayed upward from the water outlet 321, the deflecting blade 31 and the sleeve 32 can automatically rotate around the nozzle 21 to achieve 360-degree cleaning.

[0031] More specifically, combined Figure 7 As shown, the flow channel 311 is designed to extend upward from one side of the X-axis direction of the water outlet hole 321, and gradually bend from bottom to top toward the other side of the X-axis direction of the water outlet hole 321, and gradually bend from bottom to top toward either side of the Y-axis direction of the water outlet hole 321, so that when the flow channel 311 is subjected to the force exerted by the water flow sprayed upward from the water outlet hole 321, the turning blade 31 and the sleeve 32 can be caused to rotate around the nozzle 21.

[0032] Furthermore, both vertical sides of the flow channel 311 are provided with retaining bars 312 to form a semi-open structure of the flow channel 311, thereby ensuring that the water sprayed upward from the water outlet 321 can be better diffused upward through the flow channel 311, reducing the probability of water flowing out from the vertical sides.

[0033] The width of the upper side of the flow channel 311 is greater than the width of the lower side, so that a wider sheet of water curtain is formed in the process of water flowing from bottom to top. Preferably, the difference between the width of the upper side of the flow channel 311 and the width of the lower side is at least 5 mm. Under this numerical range, the water flow can form a sheet of water curtain more stably from bottom to top. For a more accurate understanding, the width of the upper side of the flow channel 311 refers to the lateral dimension of the upper side of the flow channel 311, that is, Figure 7 Similarly, the width of the lower side of the flow channel 311 refers to the lateral dimension of the lower side of the flow channel.

[0034] The upper side of the flow channel 311 is offset H by at least 2 mm relative to the axis of the nozzle 21, thereby achieving a more obvious guiding effect on the water flow sprayed upward from the water outlet 321, and also allowing the flow channel 311 to be subjected to a sufficiently large force exerted by the water flow.

[0035] The depth S of the upper side of the flow channel 311 gradually decreases along the Y-axis direction, so as to better guide the water flow sprayed upward from the water outlet hole 321 .

[0036] It should be understood that the "sleeve hole 322 of the sleeve 32 is rotatably sleeved to the upper end of the nozzle 21" in the above embodiment should be understood as the sleeve 32 can only rotate relative to the nozzle 21 but cannot slide vertically. The implementation form can be the existing technology, for example, an annular groove is provided in the sleeve hole 322, and an annular convex ring is provided on the outer peripheral wall of the upper end of the nozzle 21. Through the clamping effect of the annular convex ring and the annular groove, the sleeve 32 can only rotate relative to the nozzle 21 but cannot slide axially. Or as Figure 4 As shown, in this embodiment, a rotating shaft 33 is provided on the upper side of the steering vane 31 and the rotating shaft 33 is coaxial with the sleeve 32, the fixing seat 2 is provided with a receiving member 22 located above the steering member 3, a rotating hole 221 is provided on the lower side of the receiving member 22 and the rotating hole 221 is coaxial with the nozzle 21, and the rotating shaft 33 is rotatably plugged into the rotating hole 221, so that the rotating hole 221 of the receiving member 22 is rotatably connected with the rotating shaft 33 of the steering vane 31, thereby improving the stability of the steering member 3 when rotating around the nozzle 21, and realizing the vertical limit of the steering member 3.

[0037] More specifically, the rotating hole 221 is a blind hole with a closed upper end, and the upper end of the rotating shaft 33 abuts against the bottom of the rotating hole 221 to achieve axial limitation.

[0038] The fixing seat 2 is provided with a rib bracket 23 extending from bottom to top and bypassing the steering member 3. The upper end of the rib bracket 23 is located above the steering member 3. The upper end of the rib bracket 23 is provided with a vertical mounting hole 231. The receiving member 22 is a positioning pin and can be detachably inserted into the mounting hole 231, thereby realizing convenient disassembly and assembly of the receiving member 22 and convenient maintenance. Figure 5 As shown, the rib support 23 is annular, and the steering member 3 is located on the inner side of the rib support 23. The lateral width D of the inner side of the rib support 23 at any height is greater than the rotational outer diameter B of the steering member 3 at the same height when rotating around the nozzle 21, thereby avoiding the interference problem between the steering member 3 and the rib support 23 when rotating around the nozzle 21.

[0039] Embodiment 2: Embodiment 2 of the present invention further provides a dishwasher, comprising the spray arm spray head assembly as described in Embodiment 1.

[0040] It should be noted that, in the description of the present application, the terms "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application; all directional indications (such as up, down, left, right, front, back, inside, and outside) are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0041] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0042] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A spray arm spray head assembly, comprising a spray arm body (1) having an upward spray port (11), characterized in that: The invention also comprises a fixing seat (2) and a steering member (3), wherein the fixing seat (2) is connected to the spray arm body (1), and the fixing seat (2) is provided with a vertical spray pipe (21), the lower end of the spray pipe (21) is connected to the spray port (11), the upper part of the steering member (3) is a steering blade (31), and the lower part is a vertical sleeve (32), the upper end of the sleeve (32) is provided with a water outlet hole (321), and the lower end is provided with a sleeve hole (322), the sleeve hole (322) of the sleeve (32) is rotatably sleeved to the upper end of the spray pipe (21), and the upper end of the spray pipe (21) is connected to the water outlet hole (321), and the steering blade (31) is located above the water outlet hole (321) so that water sprayed upward from the water outlet hole (321) spreads into a sheet-like water curtain after passing through the steering blade (31).

2. The spray arm spray head assembly according to claim 1, characterized in that: A side of the deflection blade (31) facing the water outlet hole (321) is a flow channel (311), and the flow channel (311) is designed to extend upward from one side of the water outlet hole (321) in the X-axis direction, and to bend gradually from bottom to top towards the other side of the water outlet hole (321) in the X-axis direction.

3. The spray arm spray head assembly according to claim 1, characterized in that: A surface of the deflection blade (31) facing the water outlet (321) is a flow channel (311), and the flow channel (311) is designed to be shaped so as to cause the deflection blade (31) and the sleeve (32) to rotate around the nozzle (21) when a force is applied by the water flow sprayed upward from the water outlet (321).

4. The spray arm spray head assembly according to claim 3, characterized in that: The flow channel (311) is designed to extend upward from one side of the water outlet hole (321) in the X-axis direction, and gradually bend from bottom to top towards the other side of the water outlet hole (321) in the X-axis direction, and at the same time gradually bend from bottom to top towards either side of the Y-axis direction of the water outlet hole (321).

5. The spray arm spray head assembly according to any one of claims 2 to 4, characterized in that: Both vertical sides of the flow channel (311) are provided with blocking strips (312), so that the flow channel (311) forms a semi-open structure.

6. The spray arm spray head assembly according to claim 5, characterized in that: The width of the upper side of the flow channel (311) is greater than the width of the lower side.

7. The spray arm spray head assembly according to claim 6, characterized in that: The difference between the width of the upper side and the width of the lower side of the flow channel (311) is at least 5 mm.

8. The spray arm spray head assembly according to claim 7, characterized in that: The offset H of the upper side of the flow channel (311) relative to the axis of the nozzle (21) is at least 2 mm.

9. The spray arm spray head assembly according to claim 8, characterized in that: The depth S of the upper side of the flow channel (311) gradually decreases along the Y-axis direction.

10. The spray arm spray head assembly according to claim 1, characterized in that: A rotating shaft (33) is provided on the upper side of the steering blade (31), and the rotating shaft (33) is coaxial with the sleeve (32); the fixing seat (2) is provided with a receiving member (22) located above the steering member (3); a rotating hole (221) is provided on the lower side of the receiving member (22), and the rotating hole (221) is coaxial with the nozzle (21); the rotating shaft (33) is rotatably inserted into the rotating hole (221).

11. The spray arm spray head assembly according to claim 10, characterized in that: The rotating hole (221) is a blind hole with a closed upper end, and the upper end of the rotating shaft (33) abuts against the bottom of the rotating hole (221) to achieve axial limiting.

12. The spray arm spray head assembly according to claim 10 or 11, characterized in that: The fixing seat (2) is provided with a rib support (23) extending from bottom to top and bypassing the steering member (3); the upper end of the rib support (23) is located above the steering member (3); the upper end of the rib support (23) is provided with a vertical mounting hole (231); the receiving member (22) is a positioning pin and is detachably plugged into the mounting hole (231).

13. The spray arm spray head assembly according to claim 12, characterized in that: The rib support (23) is annular, the steering member (3) is located on the inner side of the rib support (23), and the lateral width D of the inner side of the rib support (23) at any height is greater than the rotational outer diameter B of the steering member (3) at the same height when rotating around the nozzle (21).

14. A dishwasher, characterized in that: It comprises a spray arm spray head assembly as described in any one of claims 1-13.

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