CN205094353U - A spray arm subassembly for dish washer - Google Patents

Abstract

The utility model proposes a spray arm assembly for a dishwasher, comprising: a water inlet pipe; a spray arm, the spray arm has a central through hole; a connecting piece, the connecting piece includes a base and a The connecting pipe on the upper part of the connecting pipe passes through the central through hole and the water inlet end of the connecting pipe is detachably connected with the water outlet end of the water inlet pipe. The water inlet pipe and the water outlet hole of the spray arm. According to the spray arm assembly for the dishwasher of the utility model, there is a connecting piece including a seat body and a connecting pipe, the connecting pipe passes through the central through hole of the spray arm and the water inlet end of the connecting pipe and the water outlet end of the water inlet pipe They are detachably connected, have a simple structure, and are convenient to assemble and disassemble.

Description

Spray arm assemblies for dishwashers

technical field

The utility model relates to the technical field of household appliances, in particular to a spray arm assembly for a dishwasher.

Background technique

The upper spray arm of the dishwasher and the water pipe of the upper spray arm are fixed by adopting a circular connection piece or card buckle between the upper spray arm and the water pipe to fix the upper spray arm and the water pipe of the upper spray arm. This type of design has a complex structure. On the one hand, it reduces the flow space of the washing solution, increases the flow resistance of the washing solution or easily accumulates dirt, and affects the spraying distance of the washing solution. On the other hand, it is not easy to assemble and disassemble, and it is not convenient for the upper spray arm cleaning and maintenance.

Utility model content

The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

Therefore, an object of the present utility model is to provide a spray arm assembly for a dishwasher that is easy to install and disassemble.

According to the utility model, the spray arm assembly for the dishwasher comprises: a water inlet pipe; a spray arm, the spray arm has a central through hole; a connecting piece, the connecting piece includes a base and is arranged on the base a connecting pipe, the connecting pipe passes through the central through hole and the water inlet end of the connecting pipe is detachably connected with the water outlet end of the water inlet pipe; water pipe and the water outlet hole of the spray arm.

According to the spray arm assembly for dishwashers of the present utility model, there is a connecting piece including a seat body and a connecting pipe, the connecting pipe passes through the central through hole of the spray arm and the water inlet end of the connecting pipe and the water outlet end of the water inlet pipe They are detachably connected, have a simple structure, and are convenient to assemble and disassemble.

In addition, the spray arm assembly for a dishwasher according to the above-mentioned embodiments of the present invention may also have the following additional technical features:

According to an example of the present invention, the inner peripheral wall of the water inlet end of the connecting pipe has a plurality of L-shaped grooves arranged at intervals along the circumference of the connecting pipe, and the upper ends of the vertical legs of the L-shaped grooves penetrate upwards. The upper surface of the connecting pipe and the outer peripheral wall of the water outlet end of the water inlet pipe have a plurality of installation bosses corresponding to the plurality of L-shaped grooves one by one.

According to an example of the present invention, the inner peripheral wall of the water inlet end of the connecting pipe also has positioning grooves corresponding to a plurality of the L-shaped grooves, and each of the positioning grooves is located in the corresponding L-shaped groove. Above the horizontal limb of the shaped groove, there are a plurality of positioning protrusions on the outer peripheral wall of the water outlet end of the water inlet pipe corresponding to and adapted to a plurality of positioning grooves, and each positioning protrusion is located on the corresponding installation the top of the boss.

According to an example of the present invention, the upper end of each positioning groove penetrates upwards through the upper surface of the connecting pipe, and the lower end of each positioning groove penetrates downwards through the corresponding horizontal leg of the L-shaped groove.

According to an example of the present invention, the depth of the positioning groove is smaller than that of the L-shaped groove.

According to an example of the present invention, the outer peripheral wall of the water outlet end of the water inlet pipe has an annular positioning rib located on the upper surface of the positioning protrusion, and the upper surface of the spray arm has a The upper limit ring opposite to the annular positioning rib, the lower surface of the spray arm has a lower limit ring surrounding the central through hole and opposite to the upper surface of the seat body.

According to an example of the present invention, the upper surface of the upper limit ring and the lower surface of the lower limit ring both have a circular arc transition.

According to an example of the present invention, there are a plurality of water outlet holes and the plurality of water outlet holes are arranged at intervals along the circumference of the connecting pipe, and the upper surface of the seat body is formed into a part surrounded by the connecting pipe. water convex.

According to an example of the present invention, the outer peripheral surface of the seat body is configured as concave surfaces and convex surfaces arranged alternately.

According to an example of the present utility model, the inner peripheral wall of the water inlet end of the connecting pipe has an internal thread located above the water outlet hole, and the outer peripheral wall of the water outlet end of the water inlet pipe has a external thread.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

FIG. 1 is a schematic diagram of a spray arm assembly for a dishwasher according to an embodiment of the present invention.

FIG. 2 is an exploded schematic diagram of FIG. 1 .

FIG. 3 is a partially enlarged schematic diagram of A in FIG. 2 .

Fig. 4 is a schematic diagram of a spray arm of a spray arm assembly for a dishwasher according to an embodiment of the present invention.

Fig. 5 is another schematic view of the spray arm of the spray arm assembly for the dishwasher according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a connection part of a spray arm assembly for a dishwasher according to an embodiment of the present invention.

Fig. 7 is a cross-sectional view of a connection part of a spray arm assembly for a dishwasher according to an embodiment of the present invention.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

The spray arm assembly for a dishwasher according to the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 7 , the spray arm assembly for a dishwasher according to the present invention includes: a water inlet pipe 100 , a spray arm 200 , and a connecting piece 300 .

Specifically, the spray arm 200 has a central through hole 201 .

The connecting piece 300 includes a base body 310 and a connecting tube 320 disposed on the base body 310 . The connecting pipe 320 passes through the central through hole 201 and the water inlet end of the connecting pipe 320 is detachably connected with the water outlet end of the water inlet pipe 100 . The side wall of the connecting pipe 320 has a water outlet hole 321 communicating with the water inlet pipe 100 and the spray arm 200 .

More specifically, according to an example of the present utility model, the inner peripheral wall of the water inlet end of the connecting pipe 320 has an internal thread (not shown) above the water outlet hole 321, and the outer peripheral wall of the water outlet end of the water inlet pipe 100 has a The internal thread mates with an external thread (not shown). That is, the water inlet end of the connecting pipe 320 is connected to the water outlet end of the water inlet pipe 100 through threaded connection so as to realize detachable connection.

According to a specific embodiment of the present invention, the inner peripheral wall of the water inlet end of the connecting pipe 320 has a plurality of L-shaped grooves 322 arranged at intervals along the circumferential direction of the connecting pipe 320 . The upper end of the vertical leg of the L-shaped groove 322 penetrates upwards through the upper surface of the connecting pipe 320 . The outer peripheral wall of the water outlet end of the water inlet pipe 100 has a plurality of mounting bosses 101 corresponding to the plurality of L-shaped grooves 322 one-to-one.

During installation, one-to-one correspondence between the installation boss 101 and the L-shaped groove 322 is made, and the connecting piece 300 is pushed upwards so that the installation boss 101 is moved to the bottom of the vertical leg of the L-shaped groove 322, and then the connecting piece 300 is rotated by a predetermined angle, so that The mounting boss 101 fits within the horizontal leg of the L-shaped slot 322 . The disassembly process is the reverse process of the installation process, and will not be repeated here. Therefore, the spray arm assembly for the dishwasher according to the present invention has a simple structure and is convenient to assemble and disassemble.

According to an example of the present utility model, the inner peripheral wall of the water inlet end of the connecting pipe 320 also has positioning grooves 323 corresponding to a plurality of L-shaped grooves 322 one-to-one, and each positioning groove 323 is located in the corresponding L-shaped groove 322. the top of the horizontal limb. The outer peripheral wall of the water outlet end of the water inlet pipe 100 has a plurality of positioning protrusions 102 corresponding to and matching with the plurality of positioning grooves 323 , and each positioning protrusion 102 is located on the corresponding installation boss 101 . As a result, the installation of the connecting piece 300 and the water inlet pipe 100 can be positioned, so that the user can have a clear idea and avoid damage caused by the user's excessive force.

Advantageously, the upper end of each positioning slot 323 penetrates upwardly through the upper surface of the connecting pipe 320 and the lower end of each positioning slot 323 downwardly penetrates the corresponding horizontal leg of the L-shaped slot 322 . Further, the depth of the positioning groove 323 is smaller than the depth of the L-shaped groove 322 . At this time, the thickness of the mounting boss 101 is greater than the thickness of the positioning protrusion 102 .

It should be noted here that the water inlet pipe 100 and the connecting pipe 320 are generally plastic parts. Therefore, during the installation and disassembly process, the interference fit between the positioning protrusion 102 and the pipe wall of the connecting pipe 320 can be eliminated by elastic deformation. impact. Of course, a positioning connecting groove for avoiding the positioning protrusion 102 may also be provided between the vertical leg of the L-shaped groove 322 and the positioning groove 323 . This is understandable to those skilled in the art.

According to an example of the present invention, the outer peripheral wall of the water outlet end of the water inlet pipe 100 has an annular positioning rib 103 located on the upper surface of the positioning protrusion 102 . The upper surface of the spray arm 200 has an upper limit ring 202 surrounding the central through hole 201 and opposite to the annular positioning rib 103 , as shown in FIG. 4 . The lower surface of the spray arm 200 has a lower limit ring 203 surrounding the central through hole 201 and opposite to the upper surface of the base body 310 . Advantageously, both the upper surface of the upper limit ring 202 and the lower surface of the lower limit ring 203 have a circular arc transition. That is, the surface of the upper limit ring 202 opposite to the annular positioning rib 103 has a circular arc transition, and the surface of the lower limit ring 203 opposite to the seat body 310 has a circular arc transition. Thus, the frictional force generated when the spray arm 200 rotates can be reduced, thereby reducing water pressure loss.

According to an example of the present invention, there are a plurality of water outlet holes 321 and the plurality of water outlet holes 321 are arranged at intervals along the circumference of the connecting pipe 320 . As shown in FIG. 7 , the portion of the upper surface of the base body surrounded by the connecting pipe 320 is configured as a water convex surface. Thus, when the water in the water inlet pipe comes out, the water pressure will not be lost under the action of the water diversion convex surface. Moreover, the water-separating convex surface actually reduces the diameter of the water outlet hole 321 , so it also helps to increase the pressure of water flowing out.

According to an example of the present invention, the outer peripheral surface of the seat body 310 is configured as concave surfaces 311 and convex surfaces 312 arranged alternately. Thus, it is helpful for the user to exert force on the connecting member 300, thereby facilitating installation and disassembly.

According to the spray arm assembly for the dishwasher of the utility model, the structure is simple, the installation and disassembly are convenient, the water pressure loss is small, the spraying effect is good, and it can be installed on the dishwasher to achieve a good cleaning effect.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact. Moreover, "above", "above" and "above" the first feature on 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. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and should not be construed as limitations of the present invention, and those of ordinary skill in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (10)

1., for a spray arm assembly for dish-washing machine, it is characterized in that, comprising:

Water inlet pipe;

Spray arm, described spray arm has central through hole;

Connector, described connector comprises pedestal and is located at the tube connector on described pedestal, described tube connector passes described central through hole and the water inlet end of described tube connector is removably connected with the water side of described water inlet pipe, the sidewall of described tube connector has the apopore being communicated with described water inlet pipe and described spray arm.

2. the spray arm assembly for dish-washing machine according to claim 1, it is characterized in that, the internal perisporium of the water inlet end of described tube connector has the spaced apart multiple L shape groove of circumference along described tube connector, the upper surface of the upper end of the vertical limb of described L shape groove upwards through described tube connector, the periphery wall of the water side of described water inlet pipe has and multiple described L shape grooves multiple installation base one to one.

3. the spray arm assembly for dish-washing machine according to claim 2, it is characterized in that, the internal perisporium of the water inlet end of described tube connector also has and multiple described L shape grooves locating slot one to one, each described locating slot is positioned at above the horizontal limb of described L shape groove corresponding with it, the periphery wall of the water side of described water inlet pipe has with multiple described locating slot one_to_one corresponding and multiple locator protrusions of adaptation, each described locator protrusions is positioned at above installation base corresponding with it.

4. the spray arm assembly for dish-washing machine according to claim 3, is characterized in that, the horizontal limb of the upper end of each described locating slot upwards upper surface of through described tube connector and the lower end of each described locating slot through described L shape groove corresponding with it downwards.

5. the spray arm assembly for dish-washing machine according to claim 3, is characterized in that, the degree of depth of described locating slot is less than the degree of depth of described L shape groove.

6. the spray arm assembly for dish-washing machine according to claim 3, it is characterized in that, the periphery wall of the water side of described water inlet pipe has the circular orientation muscle be positioned at above described locator protrusions, the upper surface of described spray arm has around described central through hole and the upper limit ring relative with described circular orientation muscle, the lower surface of described spray arm has lower limit ring around described central through hole and relative with the upper surface of described pedestal.

7. the spray arm assembly for dish-washing machine according to claim 6, is characterized in that, the upper surface of described upper limit ring and the equal arc transition of lower surface of described lower limit ring.

8. the spray arm assembly for dish-washing machine according to claim 1, it is characterized in that, to be multiple and multiple described apopore arrange along the circumferential interval of described tube connector described apopore, the upper surface of described pedestal by described tube connector around part structure composition water convex surface.

9. the spray arm assembly for dish-washing machine according to claim 1, is characterized in that, the outer peripheral face of described pedestal is configured to concave surface and the convex surface of alternately layout.

10. the spray arm assembly for dish-washing machine according to claim 1, it is characterized in that, the internal perisporium of the water inlet end of described tube connector has the internal thread be positioned at above described apopore, the periphery wall of the water side of described water inlet pipe has the external screw thread suitable with described internal thread.