CN219557191U - Dish-washing machine - Google Patents

Abstract

The utility model discloses a dish-washing machine, which comprises a sprayer, wherein the sprayer comprises a water outlet connector, a spray arm and a filter element, the water outlet connector is provided with a water outlet, the spray arm is provided with a water inlet connector, the water inlet connector is provided with a water inlet, the water inlet connector can be rotatably and detachably connected with the water outlet connector so as to enable the water inlet to be communicated with the water outlet, and the filter element can be detachably arranged on a water flow path formed from the water outlet to the water inlet. According to the technical scheme, the filter piece is arranged on the water flow path from the water outlet to the water inlet, so that when the filter device of the dish washer is not installed in place, even if pollutants are conveyed along with water flow through the washing pump, the pollutants can be intercepted by the filter piece, and the pollutants are prevented from entering the spray arm to block the spray hole of the spray arm. In addition, because the spray arm is detachably connected relative to the water outlet connector, the filter element can be taken out to be cleaned when the spray arm is detached, so that pollutants accumulated on the filter element can be conveniently cleaned, and the smooth water flow conveying is ensured.

Description

Dish-washing machine

Technical Field

The utility model relates to the technical field of dish washers, in particular to a dish washer.

Background

The dish washer generally comprises an inner container, a spray arm, a washing pump and a filter device, wherein the water pumped by the washing pump is filtered by the filter device and then is conveyed to the spray arm, and the spray arm sprays water flow to wash tableware. In some cases, the filter device is not installed in place, so that when the washing pump pumps water of the liner, pollutants (food residues and the like) in the water are conveyed to the spray arm under the action of the washing pump without being filtered by the filter device, and thus the spray arm can be blocked by the pollutants in the water, and as the spray arm can not be disassembled generally and the spray hole is smaller, difficulty in dredging the spray hole exists.

Disclosure of Invention

The present utility model aims to solve the technical problems in the related art at least to some extent. Therefore, the utility model provides a dish-washing machine, and the sprayer of the dish-washing machine can effectively avoid blocking the spray holes of the spray arms.

To achieve the above object, the present utility model discloses a dishwasher including a sprayer including:

the water outlet joint is provided with a water outlet;

the spray arm is provided with a water inlet connector, the water inlet connector is provided with a water inlet, and the water inlet connector can rotate and is detachably connected with the water outlet connector so that the water inlet is communicated with the water outlet; and the filter piece is detachably arranged on a water flow path formed from the water outlet to the water inlet.

In some embodiments of the utility model, the spray arm is provided with a nozzle, the nozzle is formed with a spray orifice, the filter is provided with a filter hole, and the size of the filter hole is smaller than that of the spray orifice.

In some embodiments of the utility model, the filter element bulges towards the water inlet or the water outlet.

In some embodiments of the utility model, the filter is provided at the water inlet joint and/or the water outlet joint.

In some embodiments of the utility model, the filter is clamped between the water inlet joint and the water outlet joint.

In some embodiments of the utility model, the filter element and the water inlet fitting are relatively fixed.

In some embodiments of the present utility model, the water inlet connector is detachably connected to the water outlet connector through the clamping ring, and the clamping ring is relatively fixed to one of the water inlet connector and the water outlet connector and rotatably connected to the other.

In some embodiments of the present utility model, the water outlet joint extends downward, the snap ring is sleeved on the water outlet joint to be rotatably connected, the water outlet joint is provided with a radially protruding protrusion, and the protrusion and the snap ring abut against each other to limit the snap ring from being separated from the water outlet joint.

In some embodiments of the present utility model, the clasp comprises a first half ring member and a second half ring member, and the first half ring member and the second half ring member are detachably connected to sleeve the water outlet joint.

In some embodiments of the present utility model, the water inlet connector is provided with a first connection portion, and the first connection portion is disposed along a circumferential direction of the water inlet, and is located on an outer side of the clamping ring and connected to the clamping ring, so that the water inlet connector and the clamping ring are relatively fixed.

In some embodiments of the present utility model, the water inlet connector is further provided with a second connecting portion, the second connecting portion is located inside the first connecting portion and is disposed around the water inlet, and the second connecting portion is inserted into the water outlet and clamps the filter with the water outlet connector.

In some embodiments of the present utility model, the filter element is provided with a first step, the second connecting portion is provided with a second step, and the first step and the second step are mutually clamped so that the filter element is arranged on the water inlet joint.

In some embodiments of the utility model, one of the first step and the second step is provided with a positioning projection, and the other is provided with a positioning groove, into which the positioning projection is embedded.

In some embodiments of the present utility model, the filter element is provided with a third step, the inner wall of the water outlet joint is provided with a fourth step, and the third step and the fourth step are mutually clamped so that the filter element is arranged on the water outlet joint.

In some embodiments of the utility model, the dishwasher comprises a liner, an upper bowl basket and an inner water pipe arranged on the liner, wherein the liner forms a washing cavity, and the upper bowl basket is arranged on the washing cavity;

the sprayer comprises a water delivery pipe, the water delivery pipe is provided with a water outlet joint, and the water delivery pipe is hung on the upper bowl basket and is suitable for being connected with the inner water pipe.

According to the technical scheme, the filter piece is arranged on the water flow path from the water outlet to the water inlet, so that when the filter device of the dish washer is not installed in place, even if pollutants are conveyed along with water flow through the washing pump, the pollutants can be intercepted by the filter piece, and the pollutants are prevented from entering the spray arm to block the spray hole of the spray arm. In addition, because the spray arm is detachably connected relative to the water outlet connector, the filter element can be taken out to be cleaned when the spray arm is detached, so that pollutants accumulated on the filter element can be conveniently cleaned, and the smooth water flow conveying is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other designs can be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a sprayer in some embodiments;

FIG. 2 is a top view of a sprayer in some embodiments;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of the mark C in FIG. 3;

FIG. 5 is a schematic view of a water pipe in some embodiments;

fig. 6 is a partial cross-sectional view of a water conduit in some embodiments;

FIG. 7 is a schematic illustration of a spray arm in some embodiments;

FIG. 8 is an enlarged view of the broken line of FIG. 7;

FIG. 9 is a schematic view of a first half of some embodiments;

FIG. 10 is a schematic view of a second half of some embodiments;

FIG. 11 is a cross-sectional view B-B of FIG. 10;

fig. 12 is a schematic view of a filter in some embodiments.

Reference numerals illustrate:

the water delivery pipe 1000, the clamping hook 1100, the water outlet connector 1200, the water outlet 1201, the convex part 1210 and the fourth step 1220;

spray arm 2000, spray arm upper sheet 2010, spray nozzle 2011, spray arm lower sheet 2020;

a water inlet joint 2100, a water inlet 2101;

a first connection portion 2110, a back-out port 2111, a card slot 2112, and a card protrusion 2113;

a second connecting portion 2120, a second step 2121, and a positioning groove 2122;

snap ring 3000, first half 3100, snap groove 3110, snap 3120, second half 3200, snap groove 3210, snap 3220, snap 3300, snap 3310;

the filter 4000, the frame 4100, the first step 4110, the positioning boss 4111, the third step 4120, the filter screen 4200, and the filter hole 4210.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The spray arm is a structure for spraying water, and the utility model is described by taking a dish washer as an example, and it is understood that the spray arm can be applied to other devices besides the dish washer.

The dish washer is a device capable of automatically cleaning tableware, generally comprises a base, an inner container and a door body, wherein the inner container is arranged on the base, the inner container is provided with a washing cavity, the door body is rotatably connected with the inner container and/or the base to seal or open the washing cavity, a bowl basket capable of being pulled out or pushed in is arranged in the washing cavity, when the door body opens the washing cavity, the bowl basket can be pulled out of the washing cavity, at the moment, a user can load tableware on the bowl basket, after the loading is finished, the bowl basket is pushed into the washing cavity, then the door body is rotated to seal the washing cavity, and washing work can be performed in the washing cavity.

The washing chamber is internally provided with a spray arm, a plurality of larger dish washing machines are provided with an upper spray arm and a lower spray arm, the spray arms are communicated with a washing pump in a base through a waterway, the washing pump is also communicated with the washing chamber, when the washing pump works, water in the washing chamber is pumped and conveyed to the spray arms, the spray arms are provided with nozzles, the nozzles form spray holes, water flow is emitted from the spray holes of the nozzles under the action of pressure, and the spray arms are driven to rotate under the action of the reverse driving force of the water flow emitted from the spray holes, so that the water flow is sprayed onto tableware to clean the tableware. The water flow sprayed by the spray arm falls back to the washing cavity, the water flow is filtered by the filtering device and continuously circulates under the action of the washing pump until the washing is finished, and the water is discharged by the drainage pump.

The water flow sprayed by the spray arm washes the tableware, food residues on the tableware can be washed and fall into the water, and along with the circulation of the water flow, the food residues can be filtered by the filtering device and cannot enter the spray arm along with the water flow. After each use of the dishwasher, the filter device needs to be disassembled for cleaning, and the filter device is installed back to the dishwasher after cleaning, but the situation that the filter device is not installed in place may exist, so that when water flow carries food residues to flow, the food residues can bypass the filter device and enter the spray arm along with the water flow. Because the size of the spray hole formed by the spray nozzle is smaller than the cross section of the waterway, food residues with the volume larger than that of the spray hole can block the spray hole, and the corresponding spray hole can not spray water flow, so that the washing of tableware is affected. In addition, the spray arm cannot be disassembled, so that the cleaning difficulty of a blocked spray hole user is high, and the time is long. In the prior art, the size of the spraying hole can be increased, so that the blockage of food residues is avoided as much as possible, but the size of the spraying hole cannot be as large as the cross-sectional size of the waterway, and when the size of the spraying hole is increased, the pressure of water flow sprayed out of the spraying hole of the spraying arm is reduced, and the scouring effect is weakened. In order to solve the problems, the utility model provides a sprayer which is applied to a dish washer and can effectively prevent food residues from blocking spray holes.

As shown in connection with fig. 1-3, and fig. 5-7, in some embodiments, the sprayer includes a water outlet fitting 1200, a spray arm 2000, and a filter 4000.

The water outlet connector 1200 is a structure for installing the spray arm 2000 and the filter 4000, the water outlet connector 1200 is fixed in the washing cavity and is communicated with the washing pump, and water flow output by the washing pump flows to the water outlet connector 1200 and then flows to the spray arm 2000. The structure of the water outlet connector 1200 may be various, for example, the water outlet connector 1200 penetrates through the inner container and protrudes out of the washing cavity, the water outlet connector 1200 is communicated with the washing pump through a waterway, the water outlet connector 1200 is provided with a water outlet 1201, when the spray arm 2000 is mounted on the water outlet connector 1200, the water outlet connector 1200 is communicated with the water outlet 1201, and the washing pump drives water to flow out through the water outlet connector 1200 and then is input into the spray arm 2000, so that the spray arm 2000 sprays water to wash tableware.

However, the sprayer includes a water pipe 1000, and the water pipe 1000 forms a water outlet joint 1200. Specifically, the dishwasher is provided with an upper basket, which is fixed to the inner tub to be located in the washing chamber, and which can be drawn out and pushed into the washing chamber, and the water pipe 1000 is fixed to the upper basket. The water delivery pipe 1000 is provided with a clamping hook 1100, and the water delivery pipe 1000 is fixed on a steel wire of the upper bowl basket through the clamping hook 1100 and is positioned below the upper bowl basket in a hanging shape. The inner container is provided with an inner water pipe, and when the water pipe 1000 is suspended and fixed on the upper bowl basket and the upper bowl basket is pushed back to the washing cavity, the tail end of the water pipe 1000 is inserted into the inner water pipe to receive water flow output by the inner water pipe. The upper basket is provided with tableware, and the spray arm 2000 can clean the tableware in the upper basket when water is sprayed upwards.

The spray arm 2000 and the water outlet connector 1200 are connected in a detachable and rotatable manner, and the user can detach the spray arm 2000 relative to the water outlet connector 1200 by gripping the spray arm 2000, and can mount the spray arm 2000 on the water outlet connector 1200. The rotatable spray arm 2000 is configured to rotate under the action of a reverse driving force of the water flow when the spray arm 2000 sprays the water flow, for example, the spray arm 2000 rotates to form a rotation plane. The specific connection between the spray arm 2000 and the water outlet connector 1200 is various, and reference may be made to a dishwasher in the related art, and the description of this embodiment will not be repeated.

When the spray arm 2000 is mounted to the water outlet connector 1200, the water outlet 1201 of the water outlet connector 1200 is communicated with the water inlet 2101 of the water inlet connector 2100 of the spray arm 2000, so that the water flow output by the washing pump flows into the spray arm 2000 through the water outlet connector 1200 and passes through the water inlet connector 2100, and in order to prevent food residues from entering the spray arm 2000 along with the water flow to block the spray hole of the spray arm 2000, the problem is solved by arranging the filter 4000. Specifically, the water outlet 1201 and the water inlet 2101 are communicated, so that water flows from the water outlet connector 1200 to the water inlet connector 2100, a water flow path is formed, and a filter 4000 is disposed on the water flow path, so that water flows out of the water outlet connector 1200 and flows into the water inlet connector 2100, and the water flow is filtered by the filter 4000, and the filter 4000 is a structure capable of filtering food residues in the water flow, so that the food residues are prevented from blocking the spray holes of the spray arm 2000 along with the water flow flowing into the spray arm 2000.

Because the spray arm 2000 is detachably connected with respect to the water outlet connector 1200, when the spray arm 2000 is detached from the water outlet connector 1200, the water flow path from the water outlet 1201 to the water inlet 2101 disappears, so that the filter 4000 can be presented in front of the eyes of the user, and the user can clean the filter 4000 conveniently. It will be appreciated that the removable placement of the filter 4000 may be such that the filter 4000 is removed following removal of the spray arm 2000, and then the filter 4000 is cleaned or the filter 4000 is removed relative to the spray arm 2000. It is also possible that the filter 4000 is not detached with the detachment of the spray arm 2000, that is, the spray arm 2000 is detached first and then the filter 4000 is detached separately.

As can be seen from the above, by providing the filter 4000 on the water flow path from the water outlet 1201 to the water inlet 2101, even if food residues are conveyed by the washing pump when the filter device of the dishwasher is not in place, the food residues are intercepted by the filter 4000, and the food residues are prevented from entering the spray arm 2000 to block the spray holes of the spray arm 2000. In addition, since the spray arm 2000 is detachably connected with respect to the water outlet connector 1200, the filter 4000 can be taken out to be cleaned when the spray arm 2000 is detached, so that food residues accumulated on the filter 4000 can be cleaned conveniently, and smooth water flow conveying is ensured.

Alternatively, the filter 4000 needs to be configured in a hollow structure, that is, the filter 4000 is provided with the corresponding filter hole 4210, the shape of the filter hole 4210 may be various, for example, square, round, oval or other shapes, the size of the filter hole 4210 cannot be set too large, the too large filter hole 4210 cannot effectively block food residues, the size of the filter hole 4210 cannot be set too small, the too small filter hole 4210 easily blocks the flow of water through the whole filter 4000, the water flow is blocked even when the dishwasher does not complete a complete washing sequence, and the size of the filter hole 4210 may be designed according to various factors such as the size of the spray hole formed by the spray nozzle 2011 in the spray arm 2000, the cross section of the water path, the filtering capability of the filtering device, etc. The shape of the orifice on the spray arm 2000 may also be varied, such as square, circular, oval, or other shapes. To achieve effective filtration of food waste, filter element 4000 may have filter holes 4210 of the same size as the size of the spouting holes or smaller than the size of the spouting holes. For example, when the size of the filter hole 4210 is the same as that of the spray hole, food residues that can be blocked by the filter 4000, and food residues that cannot be blocked by the spray hole pass through the filter 4000 and are then emitted from the spray hole with water. For another example, when the size of the filter hole 4210 is smaller than that of the nozzle hole, some food waste that just passes through the filter hole 4210 and is caught at the nozzle hole due to a change in state or the like can be prevented, and clogging of the nozzle hole by the food waste can be better prevented.

It will be appreciated that since the shape of the filter hole 4210 and the nozzle holes may be irregular, the measurement of the size is difficult, and an object may be defined that may pass through the nozzle holes but may not pass through the filter hole 4210, i.e., the size of the filter hole 4210 may be regarded as smaller than the size of the nozzle hole.

Alternatively, as shown in fig. 3 and 12, in some embodiments, the filter 4000 may bulge toward the water inlet 2101 or toward the water outlet 1201, which may increase the filter area, ensuring water flow.

The filter 4000 needs to be disposed on the water flow path from the water outlet 1201 to the water inlet 2101, and can filter the water flow entering the spray arm 2000 by only keeping it on the water flow path, so that various manners can be adopted. For example, a fixing device may be extended in the outlet connector 1200, and the filter 4000 may be fixed to the fixing device before the spray arm 2000 is mounted to the outlet connector 1200. Alternatively, a fixing device may be extended from the inside of the spray arm 2000 toward the water inlet 2101, and the filter 4000 may be fixed on the fixing device and then mounted to the water outlet connector 1200 together with the spray arm 2000, and after the spray arm 2000 is mounted to the water outlet connector 1200, the filter 4000 is located in the water flow path. However, these fixing devices are difficult to design and are not easy to implement. Thus, in some embodiments of the present utility model, as shown in connection with fig. 1 and 3, filter 4000 is disposed in water inlet fitting 2100, it being understood that filter 4000 is disposed in water inlet fitting 2100, i.e., the interaction between filter 4000 and water inlet fitting 2100 is achieved such that water inlet fitting 2100 restricts filter 4000 from being in the path of water flow. For example, filter 4000 may be fixed relative to water inlet joint 2100 and may also rotate relative to water inlet joint 2100 without affecting the restriction of filter 4000 to the flow path. The filter 4000 and the water inlet joint 2100 can be matched with each other by adopting bonding, buckling, supporting, screwing and the like. After the filter 4000 is disposed at the water inlet joint 2100, the water inlet joint 2100 of the spray arm 2000 is controlled to be mounted to the water outlet joint 1200 so that the filter 4000 is in the water flow path.

Alternatively, the filter 4000 is not provided at the water inlet joint 2100, but at the water outlet joint 1200. Similar to the filter 4000 being provided at the water inlet joint 2100, the filter 4000 is provided at the water outlet joint 1200, i.e., the filter 4000 and the water outlet joint 1200 are mutually engaged, so that the water outlet joint 1200 restricts the filter 4000 to be in the water flow path. The filter 4000 may be fixed to the water outlet 1200 and may also rotate relative to the water outlet 1200. The filter 4000 and the water outlet connector 1200 can be matched with each other by adopting bonding, buckling, plugging, screwing and the like. After the filter 4000 is installed to the water outlet joint 1200, the water inlet joint 2100 of the control spray arm 2000 is installed to the water outlet joint 1200 so that the filter 4000 is also in the water flow path.

It is also possible that the filter 4000 is simultaneously provided at the water inlet joint 2100 and the water outlet joint 1200, and since the water inlet joint 2100 and the water outlet joint 1200 are detachably connected, the filter 4000 is simultaneously provided at the water inlet joint 2100 and the water outlet joint 1200, that is, the filter 4000 is simultaneously restricted in the water flow path by being matched with the water inlet joint 2100 and the water outlet joint 1200, so that the filter 4000 can be more effectively restricted. For example, as shown in fig. 3 and 4, the filter 4000 is placed on the water inlet joint 2100, then the water inlet joint 2100 and the water outlet joint 1200 of the spray arm 2000 are controlled to be abutted, and when the spray arm 2000 is installed, the water inlet joint 2100 and the water outlet joint 1200 simultaneously clamp the filter 4000, so that the filter 4000 is located on the water flow path from the water outlet 1201 to the water inlet 2101, and at this time, the water inlet joint 2100 rotates along with the rotation of the spray arm 2000, but in the direction along the water flow path, the spray arm 2000 cannot be separated from the water outlet joint 1200, and thus the filter 4000 is still limited to the corresponding position, thereby realizing the filtration of the water flow. By clamping the filter 4000 using the water outlet fitting 1200 and the water inlet fitting 2100, effective restriction of the filter 4000 is more conveniently achieved.

Alternatively, the water flows out of the water outlet connector 1200 and into the spray arm 2000, the filter 4000 is disposed in the water flow path, and a certain force is applied to the filter 4000 by the flow of the water, so that the filter 4000 is pressed against the water inlet connector 2100, and when the water inlet connector 2100 rotates relative to the water outlet connector 1200, the water inlet connector 2100 also rotates relative to the filter 4000, and the filter 4000 is pressed against the water inlet connector 2100 under the force of the water flow, so that sliding friction force is generated between the water inlet connector 2100 and the filter 4000, and the sliding friction force not only affects the rotation of the spray arm 2000, but also increases the occurrence of possible water leakage caused by abrasion. Thus, in some embodiments, as shown in fig. 7, 8 and 12, filter 4000 is designed to be fixed relative to water inlet joint 2100, i.e., filter 4000 can rotate following the rotation of water inlet joint 2100 so that no sliding friction is created between filter 4000 and water inlet joint 2100. The filter 4000 and the water inlet joint 2100 can be fixed relatively by screwing, buckling or the like.

As shown in connection with fig. 3, 7 and 8, in some embodiments, in order to more reliably achieve a detachable and rotatable connection between the water inlet joint 2100 and the water outlet joint 1200, a snap ring 3000 is provided, for example:

the spray arm 2000 is mainly composed of a spray arm upper sheet 2010 and a spray arm lower sheet 2020, wherein the edge of the spray arm upper sheet 2010 is opposite to the edge of the spray arm lower sheet 2020, and the two sheets are connected by welding or fusing, so that a spray arm cavity is formed between the spray arm upper sheet 2010 and the spray arm lower sheet 2020, the spray arm upper sheet 2010 is provided with a nozzle 2011, and the nozzle 2011 is formed with a spray hole communicated with the spray arm cavity.

The arm upper plate 2010 is provided with a water inlet joint 2100, the water inlet joint 2100 is formed with a water inlet 2101 communicated with the arm cavity, and water flow output from the water outlet joint 1200 enters the arm cavity through the water inlet 2101 and is then ejected from the nozzle hole.

The clip 3000 has a ring-like structure, and is fixed to one of the water inlet joint 2100 and the water outlet joint 1200, and is rotatably connected to the other. The snap ring 3000 and one of them are relatively fixed and can be detachably connected, and the snap ring 3000 and the other can be rotatably connected and can be detachably connected, so that the spray arm 2000, the snap ring 3000 and the water outlet connector 1200 can be detached. For example, the clasp 3000 is fixed relative to the water inlet connector 2100 and the water outlet connector 1200 are rotatably connected such that when the spray arm 2000 rotates, the spray arm 2000 rotates the clasp 3000 together with the water outlet connector 1200. Through the arrangement of the clamping ring 3000, the spray arm 2000 and the water outlet connector 1200 are more effectively fixed, and the spray arm 2000 can be positioned below the water outlet connector 1200, so that the spray arm 2000 can be hung below the upper bowl basket through the water pipe 1000 to clean tableware in the upper bowl basket.

Alternatively, as shown in fig. 3, 5 and 6, the water outlet connector 1200 is generally in a state of extending downward, so that the spray arm 2000 is mounted below the water outlet connector 1200, and the snap ring 3000 is provided to facilitate the mounting of the spray arm 2000 and the water outlet connector 1200. The bottom end of the water outlet connector 1200 is provided with a protruding portion 1210 protruding along the radial direction of the water outlet connector 1200, the protruding portion 1210 is annular along the circumferential direction of the water outlet connector 1200, when the clamping ring 3000 is sleeved on the outer wall of the water outlet connector 1200, because the clamping ring 3000 needs to be fixedly connected with the spray arm 2000, the clamping ring 3000 moves downwards under the action of the spray arm 2000 and is blocked by the protruding portion 1210, the protruding portion 1210 and the clamping ring 3000 abut against each other to prevent the clamping ring 3000 from separating from the water outlet connector 1200, i.e. the clamping ring 3000 and the spray arm 2000 cannot separate from the water outlet connector 1200. The clamping ring 3000 forms a circular periphery, and the water outlet connector 1200 also forms a circular periphery, so that the clamping ring 3000 is sleeved on the water outlet connector 1200 to realize rotatable arrangement, and the clamping ring 3000 and the spray arm 2000 are realized to rotate under the action of water flow injection under the blocking of the convex part 1210.

Alternatively, in order to facilitate the installation of the clasp 3000 to the water outlet connector 1200, as shown in fig. 9 and 10, the clasp 3000 is mainly formed by connecting two halves, namely, a first half-ring 3100 and a second half-ring 3200, and both the second half-ring 3200 and the second half-ring 3200 are fixed to the outer wall of the water outlet connector 1200 by a detachable connection manner, so as to form a sleeve of the water outlet connector 1200. The first half ring 3100 and the second half ring 3200 may be two separate and mutually separated components, and may be connected flexibly by means of an additional connection mode, or one side of the first half ring 3100 and one side of the second half ring 3200 may be connected flexibly, while the other side of the first half ring 3100 and the other side of the second half ring 3200 may be connected detachably, so that the installation of the clasp 3000 is more convenient.

For example, one end of the first half ring 3100 is provided with a buckle 3120, the other end is provided with a clamping groove 3110, one end of the second half ring 3200 is provided with a buckle 3220, the other end is provided with a clamping groove 3210, the first half ring 3100 and the second half ring 3200 are close to each other and are sleeved on the outer wall of the water outlet connector 1200 until the buckle 3120 of the first half ring 3100 is inserted into the clamping groove 3210 of the second half ring 3200, and the buckle 3220 of the second half ring 3200 is inserted into the clamping groove 3110 of the first half ring 3100, so that the connection of the first half ring 3100 and the second half ring 3200 is realized, and the clamping ring 3000 is sleeved on the water outlet connector 1200.

Alternatively, the snap ring 3000 and the water inlet connector 2100 may be fixed to each other by a variety of connection methods, such as a snap connection or a threaded connection, and the snap ring 3000 may be driven to rotate synchronously while the spray arm 2000 rotates. For example, a snap-fit connection is illustrated. The water inlet joint 2100 is provided with a first connection portion 2110 in the circumferential direction of the water inlet 2101, and it is understood that the circumferential direction is arranged along the circumferential direction of the water inlet 2101, for example, a circle with a larger diameter than the water inlet 2101 is defined, the first connection portion 2110 is arranged along the circle, and the first connection portion 2110 may be a plurality of spaced-apart connection portions or may be a ring shape as a whole. The first connection portion 2110 is protruding with respect to the upper surface of the spray arm 2000, the first connection portion 2110 is provided with a clamping groove 2112, the outer wall of the clamping ring 3000 is provided with a buckle 3300, when the water inlet joint 2100 and the water outlet joint 1200 are abutted, the first connection portion 2110 is located on the outer side of the clamping ring 3000 (with respect to the inner side of the clamping ring 3000, when the clamping ring 3000 is mounted on the water outlet joint 1200, the inner side (inner wall) of the clamping ring 3000 is opposite to the outer wall of the water outlet joint 1200), and the buckle 3300 of the outer wall of the clamping ring 3000 is embedded into the clamping groove 2112 of the first connection portion 2110, so that the water inlet joint 2100 and the water outlet joint 1200 are connected.

For another example, the first connection portion 2110 is disposed around the water inlet 2101 and is in an annular structure, the inner wall of the first connection portion 2110 is provided with a clamping groove 2122 disposed along the circumferential direction, and an avoidance port 2111 communicated with the clamping groove 2122 is disposed on the inner wall of the first connection portion 2110 along the axial direction of the first connection portion 2110, so that when the spray arm 2000 is mounted, the first connection portion 2110 is sleeved on the outer side of the clamping ring 3000, the buckle 3300 on the clamping ring 3000 passes through the avoidance port 2111, and when the spray arm 2000 rotates by a certain angle, the buckle 3300 on the clamping ring 3000 slides into the clamping groove 2122 of the first connection portion 2110, so that connection between the first connection portion 2110 and the clamping ring 3000 is achieved, and connection between the spray arm 2000 and the clamping ring 3000 is achieved.

Optionally, the clip 3300 on the clip 3000 is in interference engagement with the clip 2122 of the first connecting portion 2110, so as to prevent the spray arm 2000 from loosening from the clip 3000 during rotation, and the screwing direction between the spray arm 2000 and the clip 3000 may be the same as the rotation direction of the spray arm 2000.

Alternatively, as shown in fig. 8 and 11, the clip 3300 of the clip 3000 is provided with a clip protrusion 3310, the wall of the clip groove 2122 of the first connection portion 2110 is provided with at least two clip protrusions 2113, and when the first connection portion 2110 rotates, the clip 3300 of the clip 3000 is inserted into the clip groove 2122 of the first connection portion 2110 until the clip protrusion 3310 of the clip 3000 moves between two adjacent clip protrusions 2113 of the clip groove 2122, thus preventing the first connection portion 2110 from being released relative to the clip 3000, and in such a manner that excessive deformation of the clip protrusion 3300, and a gap between the lock pin clip 3000 and the first connection portion 2110 can be avoided.

As shown in connection with fig. 8, in some embodiments, the water inlet joint 2100 is further provided with a second connection 2120, and the filter 4000 is held by the cooperation of the water outlet joint 1200 through the arrangement of the second connection 2120.

Specifically, the second connecting portion 2120 is integrally formed in a ring structure, and is disposed around the water inlet 2101 and located at an inner side of the first connecting portion 2110, that is, the inner side is closer to the center of the water inlet 2101, for example, the first connecting portion 2110 and the second connecting portion 2120 are disposed around the water inlet 2101, so as to form a double-ring structure that is alternately disposed. The snap ring 3000 is sleeved on the outer wall of the water outlet connector 1200, when the water inlet connector 2100 is connected with the snap ring 3000, the first connection portion 2110 is sleeved on the snap ring 3000, that is, the first connection portion 2110 is sleeved on the water outlet connector 1200, and the second connection portion 2120 is inserted on the water outlet connector 1200, because the second connection portion 2120 is arranged closer to the water inlet 2101, the water inlet 2101 can be directly surrounded by the second connection portion 2120, when the second connection portion 2120 is inserted into the water outlet 1201 of the water outlet connector 1200, the formation of a water flow path from the water outlet 1201 to the water inlet 2101 can be realized, and thus, the water outlet connector 1200 is matched through the second connection portion 2120, so that the filter 4000 is arranged on the water flow path, and the change is simpler and more convenient.

Optionally, the filter 4000 is provided with a first step 4110, the second connection 2120 is provided with a second step 2121, and the filter 4000 is arranged at the water inlet joint 2100 by abutting the first step 4110 and the second step 2121. For example, the filter 4000 includes a frame 4100 and a filter screen 4200, the frame 4100 and the filter screen 4200 are connected to each other, the filter screen 4200 forms a filter hole 4210, a first step 4110 is formed at a lower side of an edge of the frame 4100, a second step 2121 is provided at a top of the second connecting portion 2120, and when the filter 4000 is placed on top of the second connecting portion 2120, the first step 4110 and the second step 2121 are engaged with each other, such that the second connecting portion 2120 restricts movement of the filter 4000 in a radial direction of the second connecting portion 2120, such that the filter 4000 can be placed on the second connecting portion 2120 under a bearing of gravity.

A similar structure may be adopted for the mutual engagement between the filter 4000 and the outlet connector 1200, i.e., the upper side of the edge of the frame 4100 is formed with the third step 4120, and the inner wall of the outlet connector 1200 is provided with the fourth step 1220, so that the displacement of the filter 4000 in the water flow path is restricted by the action of the second step 2121 and the fourth step 1220 as the third step 4120 and the fourth step 1220 are engaged with each other after the inlet connector 2100 is mounted to the outlet connector 1200 when the filter 4000 is provided at the first connection portion 2110 by the engagement of the first step 4110 and the second step 2121.

Optionally, to ensure that the filter 4000 is relatively fixed with respect to the second connection 2120, a positioning projection 4111 is provided on one of the first step 4110 and the second step 2121, and a positioning groove 2122 is provided on the other. For example, the first step 4110 formed by the frame 4100 of the filter 4000 is provided with the positioning protrusions 4111 along the circumferential direction of the first step 4110, and the second step 2121 of the second connecting portion 2120 is provided with the spaced positioning grooves 2122 along the circumferential direction, so that when the first step 4110 and the second step 2121 are matched, the positioning protrusions 4111 are inserted into the positioning grooves 2122, and when the spray arm 2000 is rotated, the synchronous rotation of the water inlet joint 2100 and the filter 4000, i.e., the relative fixation between the water inlet joint 2100 and the filter 4000, is achieved.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims (13)

1. A dishwasher, comprising a sprayer, the sprayer comprising:

the water outlet joint is provided with a water outlet;

the spray arm is provided with a water inlet connector, the water inlet connector is provided with a water inlet, and the water inlet connector can rotate and is detachably connected with the water outlet connector so that the water inlet is communicated with the water outlet; and

the filtering piece is detachably arranged on a water flow path formed from the water outlet to the water inlet.

2. The dishwasher of claim 1, wherein the spray arm is provided with a nozzle, the nozzle being formed with a spray orifice, the filter being provided with a filter aperture, the filter aperture being smaller in size than the spray aperture;

and/or the filter element bulges towards the water inlet or the water outlet.

3. The dishwasher of claim 1, characterized in that the filter element is provided at the water inlet connection and/or the water outlet connection.

4. A dishwasher according to claim 3, wherein the filter is clamped between the water inlet connection and the water outlet connection;

and/or the filter element and the water inlet joint are relatively fixed.

5. The dishwasher of any one of claims 1 to 4 wherein the sprayer further comprises a snap ring, the water inlet connection is detachably connected to the water outlet connection by the snap ring, and the snap ring is relatively fixed to one of the water inlet connection and the water outlet connection and rotatably connected to the other.

6. The dishwasher of claim 5 wherein the outlet fitting extends downwardly, the snap ring is rotatably coupled about the outlet fitting, the outlet fitting has a radially projecting tab, and the tab and the snap ring abut to limit the snap ring from being disengaged from the outlet fitting.

7. The dishwasher of claim 6 wherein the snap ring comprises a first half ring and a second half ring, the first half ring and the second half ring being removably connected to encase the water outlet fitting.

8. The dishwasher of claim 5 wherein the water inlet fitting is provided with a first connection portion disposed circumferentially about the water inlet, the first connection portion being located outside of the snap ring and connected to the snap ring such that the water inlet fitting is relatively fixed to the snap ring.

9. The dishwasher of claim 8 wherein the water inlet fitting further comprises a second connecting portion positioned inside the first connecting portion and surrounding the water inlet, the second connecting portion being interposed between the water outlet and the water outlet fitting to retain the filter element.

10. The dishwasher of claim 9 wherein the filter is provided with a first step and the second connection is provided with a second step, the first step and the second step being snapped together such that the filter is disposed in the water inlet connection.

11. The dishwasher of claim 10, one of the first and second steps being provided with a positioning projection and the other one being provided with a positioning recess, the positioning projection being embedded in the positioning recess.

12. The dishwasher of claim 9 wherein the filter is provided with a third step and the inner wall of the outlet fitting is provided with a fourth step, the third step and the fourth step being captured with one another such that the filter is disposed in the outlet fitting.

13. The dishwasher of claim 1 including a liner, an upper bowl basket and a water tube disposed within the liner, the liner defining a wash chamber, the upper bowl basket being disposed within the wash chamber;

the sprayer comprises a water delivery pipe, the water delivery pipe is provided with a water outlet joint, and the water delivery pipe is hung on the upper bowl basket and is suitable for being connected with the inner water pipe.