CN107397517B - Dish washing machine and base assembly thereof - Google Patents

Abstract

The invention belongs to the technical field of dish washing machines, and particularly relates to a dish washing machine and a base assembly thereof. The base assembly of the dishwasher has the advantages that the structural design is simpler, the assembly is quicker and more convenient when the base assembly of the dishwasher is assembled, and the assembly efficiency is higher.

Description

Dish washing machine and base assembly thereof

Technical Field

The invention belongs to the technical field of dish-washing machines, and particularly relates to a dish-washing machine and a base assembly thereof.

Background

The dishwasher is a household appliance for washing dishes, and a washing inner cavity of the dishwasher is a washing working area of the dishes. In the specific application, the tableware to be washed can be placed in the dish basket firstly, then the dish basket is placed in the washing inner cavity for washing and drying, and after the drying is finished, the dish basket loaded with the tableware is pulled out of the washing inner cavity. When pulling out the dish that will load the tableware from washing inner chamber, the weight of the front end of dish washer can be bigger than the weight of dish washer rear end so, topples over forward in order to prevent that the dish washer is whole, just so need lean on the position of rear end to set up the balancing weight at the base of dish washer to this increases the weight of dish washer rear end, and then ensures that the phenomenon that the dish washer can not appear toppling over after the dish is pulled out.

In the processing and production processes of the dish-washing machine, the production and assembly links of the balancing weight block often restrict the production efficiency and cost of production enterprises. At present, in order to ensure that the balancing weight is stably installed on the base, the base of most dish washing machines is specially provided with a convex block and a sinking groove which are matched with each other, so that the stability of the installation of the balancing weight is ensured through the matched convex block and the sinking groove. However, such a structure inevitably complicates the structural design of the base and the weight block, and increases the manufacturing cost; meanwhile, the counterweight block needs to be assembled in a specific direction, so that the assembly efficiency is reduced.

Disclosure of Invention

The invention aims to provide a dish washing machine and a base assembly thereof, and aims to solve the technical problems that the structure of a balancing weight in the dish washing machine in the prior art is complex and the assembly efficiency with a base is low.

In order to achieve the purpose, the invention adopts the technical scheme that: a base assembly comprises a base and a balancing weight, wherein the rear end of the base is provided with a mounting groove matched with the balancing weight in shape, the mounting groove comprises a groove bottom wall, a groove top wall, a groove inner wall and two groove side walls, two sides of the base are provided with screw mounting holes which penetrate through the two groove side walls respectively and are communicated with the mounting groove, two ends of the balancing weight in the length direction are provided with counterweight screw holes, the balancing weight is contained in the mounting groove, the surfaces, corresponding to the positions of the balancing weight, the groove bottom wall, the groove top wall, the groove inner wall and the groove side walls, of the balancing weight are abutted to the groove bottom wall, the groove top wall, the groove inner wall and the groove side walls respectively, and the counterweight screw holes correspond to the positions of the screw mounting holes and are connected with the counterweight screw holes in a locking mode through locking screws.

The invention has the beneficial effects that: when the base assembly is assembled, the balancing weight is installed in the installation groove, and the two sides of the base are connected with the balancing weight screw hole in a locking mode through the screw installation holes through the locking screws, so that the balancing weight is limited in five dimensions through the groove bottom wall, the groove top wall, the groove inner wall and the two groove side walls of the installation groove, the balancing weight can be limited in the sixth dimension through the fastening of the two locking screws to the balancing weight, and the balancing weight is stably and reliably installed. And because the shape of balancing weight and the shape looks adaptation of mounting groove, need not to set up lug and heavy groove so, the structure is simpler, can also be more fast with the balancing weight holding in the mounting groove simultaneously, the installation is swift convenient, and assembly efficiency is higher.

The invention adopts another technical scheme that: a dish washing machine comprises an inner container and the base assembly, wherein the inner container is arranged above the base and is assembled and connected with the base.

According to the dish washing machine, due to the adoption of the base assembly, the structural design of the base assembly can be simplified, and the base assembly of the dish washing machine is assembled more quickly and conveniently and has higher assembly efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a structural sectional view of a base assembly according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a base assembly according to an embodiment of the present invention.

Fig. 3 is an exploded view of a base assembly according to an embodiment of the invention.

Fig. 4 is a schematic structural diagram of a weight block of a base assembly according to an embodiment of the present invention.

Fig. 5 is a first structural schematic diagram of a base of the base assembly according to the embodiment of the present invention.

Fig. 6 is an enlarged view of a portion of the structure at B in fig. 5.

Fig. 7 is a second schematic structural diagram of a base of the base assembly according to the embodiment of the present invention.

Fig. 8 is an enlarged view of a portion of the structure at D in fig. 7.

Fig. 9 is an enlarged view of a portion of a structure at a in fig. 1.

Fig. 10 is a sectional view of a guide boss of a base provided in an embodiment of the present invention.

FIG. 11 is a first schematic structural diagram of a dishwasher according to an embodiment of the present invention.

Fig. 12 is an exploded view of a dishwasher according to an embodiment of the present invention.

FIG. 13 is a second schematic structural diagram of a dishwasher according to an embodiment of the present invention.

Fig. 14 is an enlarged view of a portion of the structure at E in fig. 13.

Fig. 15 is a schematic structural view of an inner container of a dishwasher according to an embodiment of the present invention.

Fig. 16 is an enlarged view of a portion of the structure at F in fig. 15.

Fig. 17 is a third schematic structural diagram of a base of the base assembly according to the embodiment of the present invention.

Fig. 18 is an enlarged view of a portion of the structure at G in fig. 17.

Wherein, in the figures, the respective reference numerals:

1-hinge screw 2-locking screw 3-axial screw

10-inner container 11-side plate 12-connecting plate

20-base 21-groove 22-mounting boss

23-bottom mounting surface 24-base fastening hole 30-hinge support

31-vertical plate 32-transverse folded plate 33-hinge fastening hole

40-plug connector 50-positioning boss 51-first side mounting surface

60-guide boss 61-second side mounting surface 70-limiting plate

80-guide plate 81-support 82-guide part

83-guiding cambered surface 84-supporting cambered surface 85-guiding rib

86-support rib 90-deformation-preventing step 100-connecting part

111-liner fastening hole 121-liner mounting hole 202-mounting groove

203-groove bottom wall 204-groove top wall 205-groove inner wall

206-groove side wall 207-screw mounting hole 208-support rib

209-arc chamfer 210-buffer rib 211-upper bottom edge

212-lower bottom edge 213-waist edge 214-lower buffer rib part

215-upper buffering rib part 220-counterweight block 221-base mounting hole

222-counterweight screw holes 223-cushion.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-18 are exemplary and intended to be illustrative of the invention and should not be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 5 and 7, an embodiment of the present invention provides a base assembly, including a base 20 and a weight block 220, wherein a mounting groove 202 having a shape adapted to the shape of the weight block 220 is disposed at a rear end of the base 20, the mounting groove 202 includes a groove bottom wall 203, a groove top wall 204, a groove inner wall 205 and two groove side walls 206, screw mounting holes 207 respectively penetrating through the two groove side walls 206 and communicating with the mounting groove 202 are disposed at two sides of the base 20, weight blocks 220 are respectively disposed at two ends in a length direction thereof, the weight block 220 is accommodated in the mounting groove 202, surfaces of the weight block 220 corresponding to the positions of the groove bottom wall 203, the groove top wall 204, the groove inner wall 205 and the groove side wall 206 are respectively abutted against the groove bottom wall 203, the groove top wall 204, the groove inner wall 205 and the groove side wall 206, the weight blocks 222 correspond to the positions of the screw mounting holes 207 and penetrate through the screw mounting holes via locking screws 2 207 are lockingly engaged with the counterweight screw holes 222.

Preferably, the wall surface of the bottom wall 203 and the wall surface of the top wall 204 are parallel to each other, the wall surfaces of the two side walls 206 are parallel to each other, and the opening of the mounting groove 202 is formed corresponding to the inner wall 205 and opened toward the rear end of the base 20.

In the base assembly of the embodiment of the invention, when the base assembly is assembled, the balancing weight 220 is installed in the installation groove 202, and the two sides of the base 20 are connected with the balancing weight screw hole 222 in a locking manner by the locking screws 2 penetrating through the screw installation holes 207, so that the balancing weight 220 is limited in five dimensions by the groove bottom wall 203, the groove top wall 204, the groove inner wall 205 and the two groove side walls 206 of the installation groove 202, and the balancing weight 220 can be limited in the sixth dimension by fastening the balancing weight 220 by the two locking screws 2, and the balancing weight 220 is stably and reliably installed. And because the shape of balancing weight 220 and the shape looks adaptation of mounting groove 202, need not to set up lug and heavy groove so, the structure is simpler, can also be more fast with balancing weight 220 holding in mounting groove 202 simultaneously, the installation is swift convenient, and assembly efficiency is higher.

Further, a certain distance is provided between the two groove side walls 206 and the two side portions of the base 20, the structure in the distance belongs to a part of the structure of the base 20, and the distance is mainly used for setting the screw mounting hole 207 and allowing the locking screw 2 to penetrate and fix, so that the locking screw 2 can be ensured to have enough strength to protect the locking screw 2 when being fixed.

As shown in fig. 3, 5, and 7, the six dimensions of the weight block 220 in the embodiment are limited specifically by limiting the bottom end of the weight block 220 through the bottom wall 203, limiting the top end of the weight block 220 through the top wall 204, limiting the inner end of the weight block 220 through the inner wall 205, and limiting the two side ends of the weight block 220 through the two side walls 206, so that the weight block 220 is limited from five dimensions, and the outer end of the weight block 220 is limited by the locking screws 2 connected to the two sides, so that the weight block 220 is limited in six dimensions. This ensures that the weight 220 is not limited by the engagement of the projection and the sink, and the structure is simpler and the assembly is more convenient.

More specifically, the weight block 220 has an elongated structure. Further, the weight block 220 is a square strip structure, and has no bump and no sink.

In this embodiment, as shown in fig. 3 and 17, the top wall 204 of the slot is convexly provided with a plurality of abutting ribs 208 facing the bottom wall 203 of the slot, each abutting rib 208 is arranged at intervals along the length direction of the top wall 204 of the slot, and each abutting rib 208 abuts against the top of the weight block 220. When the weight block 220 is accommodated in the mounting groove 202, the weight block 220 is pushed in a horizontal state from the opening of the mounting groove 202 to the inner wall 205 of the mounting groove 202. Because the groove top wall 204 is convexly provided with the plurality of abutting ribs 208 facing the groove bottom wall 203, in the process that the balancing weight 220 is pushed into the mounting groove 202, the top end of the balancing weight 220 is in contact with the abutting ribs 208 arranged on the groove top wall 204 instead of the groove bottom wall 203, so that the contact area with the balancing weight 220 can be reduced, the friction force generated between the balancing weight 220 and the balancing weight can be reduced, and the balancing weight 220 can be more easily mounted in the mounting groove 202.

Further, each of the support ribs 208 is integrally injection-molded with the base 20. Each abutting rib 208 is L-shaped, wherein the bottom of the L-shaped abutting rib 208 is formed on the slot top wall 204, and the front end of the L-shaped abutting rib 208 is located above the front of the slot top wall 204.

In this embodiment, as shown in fig. 3 and 17, preferably, an arc-shaped chamfer 209 is provided at a front end of each holding rib 208. Specifically, the arc-shaped chamfer 209 can be arranged to guide the counterweight block 220 to be installed in the installation groove 202; on the other hand, the sharp angle at the front end of the abutting rib 208 is prevented from obstructing the counterweight block 220, and further the installation of the counterweight block 220 is prevented from being influenced.

In this embodiment, as shown in fig. 5 and 7, the slot bottom wall 203 is convexly provided with a plurality of buffer ribs 210 facing the slot top wall 204, each buffer rib 210 is arranged at intervals along the length direction of the slot bottom wall 203, and each buffer rib 210 is abutted to the bottom of the weight block 220. Specifically, the tank bottom wall 203 of installing at balancing weight 220 increases a plurality of buffering muscle 210, like this when the base subassembly falls, balancing weight 220 is because inertial action, the power that balancing weight 220 produced is used in each buffering muscle 210, buffering muscle 210 atress warp, play the effect of a buffering, so, can avoid the effort of balancing weight 220 to cause the damage to tank bottom wall 203 on the tank bottom wall 203 of mounting groove 202 directly used, and then can avoid base 20 to receive the damage.

In this embodiment, the buffer ribs 210 are arranged at equal intervals along the length direction of the slot bottom wall 203. Specifically, since the weight member 220 is a strip-shaped structure, the buffer ribs 210 are arranged at equal intervals to ensure that the weight member 220 can be buffered in a balanced manner in the length direction.

In addition, another effect of the setting of buffering muscle 210 is similar with the effect of holding muscle 208, can reduce the area of contact with the bottom of balancing weight 220 to can reduce the frictional force with balancing weight 220 bottom, and then can install balancing weight 220 in mounting groove 202 more fast.

Further, the distribution density of each buffer rib 210 is greater than the distribution density of each holding rib 208. The combined cushioning rib 210 and the holding rib 208 can provide the best guiding and cushioning effect.

In this embodiment, as shown in fig. 5 to 6, a first embodiment of the buffer rib 210 is as follows: the buffer rib 210 comprises an upper bottom edge 211, a lower bottom edge 212 and a waist edge 213 connected between the upper bottom edge 211 and the lower bottom edge 212, wherein the width L of the upper bottom edge 211 is 0.4-0.9 mm, the distance H between the upper bottom edge 211 and the lower bottom edge 212 is 2-5 mm, and the included angle Z between the waist edge 213 and the lower bottom edge 212 is 75-85 degrees. Specifically, the buffering muscle 210 upper end of this kind of mode is thin, the lower extreme is thick, and the bottom contact of thin upper end and balancing weight 220, when the balancing weight 220 applys the effort to buffering muscle 210 on, the deformation of atress earlier of the thin upper end of buffering muscle 210 so to with the atress toward thicker one end transmission gradually, the deformation of buffering muscle 210 so reduces by upper end to lower extreme gradually, and then plays the effect of buffering.

Further, the width L of the upper bottom edge 211 of the cushion rib 210 may be 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, or 0.9mm, the distance H between the upper bottom edge 211 and the lower bottom edge 212 of the cushion rib 210 may be 2mm, 3mm, 4mm, or 5mm, and the included angle Z between the waist edge 213 and the lower bottom edge 212 of the cushion rib 210 may be 75 °, 77 °, 79 °, 81 °, 83 °, or 85 °. The setting of the parameter values described above can make the buffering performance of the buffer rib 210 better.

In this embodiment, as shown in fig. 7 to 8, a second embodiment of the buffer rib 210 is as follows: the buffer rib 210 includes a lower buffer rib portion 214 and an upper buffer rib portion 215, the upper buffer rib portion 215 is disposed at the top end of the lower buffer rib portion 214 and extends obliquely upward, and an included angle Y between the upper buffer rib portion 215 and the lower buffer rib portion 214 is 35 ° to 70 °. Wherein, the included angle Y between the upper cushioning rib 215 and the lower cushioning rib 214 may be 35 °, 40 °, 45 °, 50 °, 55 °, 60 °, 65 °, or 70 °. Specifically, in the buffering rib 210 with the above structure, the structure in which the upper buffering rib portion 215 is not connected to the lower buffering rib portion 214 forms a cantilever beam, that is, an unsupported space structure is formed below the partial structure of the upper buffering rib portion 215, so that when the weight block 220 applies an acting force to the upper buffering rib portion 215, the structure in which the upper buffering rib portion 215 forms the cantilever beam is bent and deformed downward, so that a buffering effect is achieved, and the weight block 220 is prevented from damaging the groove bottom wall 203.

Further, as shown in fig. 7 to 8, in a second embodiment of the buffer rib 210 of the present embodiment, the upper buffer rib 215 includes a top end surface (not shown), the lower buffer rib 214 includes a bottom end surface (not shown), a distance h between the top end surface and the bottom end surface is 3mm to 7mm, and a distance l from a terminal end of the upper buffer rib 215 to a side end of the lower buffer rib 214 facing away from an extending direction of the upper buffer rib 215 is 4mm to 10 mm. Specifically, the distance h between the top end surface and the bottom end surface may be 3mm, 4mm, 5mm, 6mm, or 7mm, and the distance l from the tip of the upper cushion rib 215 to the side end of the lower cushion rib 214 facing away from the extending direction of the upper cushion rib 215 may be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or 10 mm.

Note that the top end surface of the upper cushion rib 215 is a surface in contact with the weight member 220, and the bottom end surface of the lower cushion rib 214 is a surface connected to the groove bottom wall 203.

In this embodiment, as shown in fig. 4, a cushion 223 is disposed on a surface of the weight member 220. Specifically, this balancing weight 220 is as counter weight portion, buffering cushion 223 is as counter weight buffering portion, buffering cushion 223 can be located on one face or a plurality of faces of balancing weight 220, through bonding or integrated into one piece or fix with rivet on balancing weight 220, balancing weight 220 is installed in the mounting groove 202 of base, when the base subassembly falls, balancing weight 220 is because inertial action, can produce a great impact force to the wall that supports, at this moment, buffering cushion 223 branch on the balancing weight 220 can play an effectual cushioning effect, absorb the impact force, avoid the direct wall with the mounting groove 202 of base of effort of balancing weight 220, structural design is reasonable, therefore, the clothes hanger is strong in practicability.

As shown in fig. 11 to 13, an embodiment of the present invention further provides a dishwasher, which includes an inner container and the above-mentioned base assembly, wherein the inner container is disposed above the base and is assembled and connected with the base. Particularly, the dishwasher provided by the embodiment of the invention has the advantages that the structural design of the base component can be simplified, and the assembly of the base component of the dishwasher is quicker and more convenient and has higher assembly efficiency.

In the following, the terms of orientation, such as front, rear, inner, outer, bottom and top, appearing in the dishwasher embodiment of the present embodiment are described with reference to fig. 9-13.

In this embodiment, as shown in fig. 11 to 12, the dishwasher further includes a hinge support 30 and a hinge screw 1, the hinge support 30 includes a vertical plate 31 and a horizontal folding plate 32 that are connected to each other, the inner container 10 includes a side plate 11, a position of the side plate 11 near the front end of the side plate 11 is provided with an inner container fastening hole 111, a side portion of the base 20 is provided with a base fastening hole 24 corresponding to the inner container fastening hole 111, the vertical plate 31 is provided with a hinge fastening hole 33, the hinge screw 1 is sequentially inserted and connected with the inner container fastening hole 111, the base fastening hole 24 and the hinge fastening hole 33 to fasten the side plate 11, the base 20 and the hinge support 30, the vertical plate 31 extends upward and is fixedly connected with the inner container 10, and the horizontal folding plate 32 is connected with the rear end of the vertical plate 31 and extends toward the rear end of the base 20 and is. Specifically, a hinge support 30 is arranged on the side of the front end of the joint of the base 20 with poor rigidity and the liner 10, a liner fastening hole 111 is arranged at the side position of the side plate 11 close to the front end, a base fastening hole 24 is arranged at the side position of the base 20 close to the front end, a hinge fastening hole 33 is arranged on the vertical plate 31, the positions of the liner fastening hole 111, the base fastening hole 24 and the hinge fastening hole 33 are correspondingly arranged, and finally, the liner fastening hole 111, the base fastening hole 24 and the hinge fastening hole 33 are sequentially connected in a penetrating manner through a hinge screw 1, so that the side plate 11, the base 20 and the hinge support 30 can be fastened and connected, and further, the vertical plate 31 is fixedly connected with the side plate 11, and the transverse folded plate 32 is fixedly connected with the base 20, so that the stability of connection between the base 20 and the liner 10 is enhanced; and because the hinge support 30 is arranged at the front end position where the rigidity of the inner container 10 and the base 20 is poor, the hinge support 30 can strengthen the rigidity of the front ends of the inner container 10 and the base 20, and ensure that the front ends of the inner container 10 and the base 20 are not easy to deform under the action of pressure. When the dishwasher door (not shown) is hinge-coupled to the front ends of the tub 10 and the base 20, a force generated by frequently using the dishwasher door is applied to the hinge support 30 in this embodiment, thereby effectively preventing the front ends of the tub 10 and the base 20 from being deformed by the pressure.

In fact, in the prior art, in order to enhance the stability of the connection between the inner container 10 and the base 20, it is common practice to increase the number of fasteners, and the fasteners are increased to enhance the stability of the connection between the inner container 10 and the base 20. However, the present embodiment provides the hinge support 30 in a new stable manner for solving the problem of poor stability of the connection between the inner container 10 and the base 20, and the hinge support 30, the inner container 10 and the base 20 are connected through the hinge fastening holes 33, so as to finally achieve the purpose of enhancing the stability of the connection between the inner container 10 and the base 20, and enhance the rigidity of the front ends of the inner container 10 and the base 20, so that the inner container 10 and the base 20 are not easily deformed.

In the present embodiment, as shown in fig. 12, the hinge supporter 30 includes a vertical plate 31 and a lateral folding plate 32 connected to each other, and a hinge fastening hole 33 is opened in the vertical plate 31. Specifically, the hinge support 30 is substantially zigzag-shaped, wherein the transverse folding plate 32 and the vertical plate 31 of the hinge support 30 are partially accommodated in a hinge positioning groove (not shown) provided in the base 20, and the other part of the vertical plate 31 extends upward and is provided outside the side plate 11 of the inner container 10. The advantages of this kind of structural design are: horizontal flap 32 and base 20 keep away from the position fixed connection of the front end of base 20 a little, and vertical board 31 is then in the position and base 20 and inner bag 10 fixed connection of the front end of being close to base 20 and inner bag 10, horizontal flap 32 can produce the power of pulling backward to vertical board 31 so, with the power of pulling forward of dishwasher door to the vertical board 31 of hinge support 30 offset each other, thereby avoid hinge support 30 atress deformation and influence inner bag 10 and base 20 and be connected, and then be favorable to strengthening the stability that inner bag 10 and base 20 are connected through the setting of hinge support 30.

In this embodiment, as shown in fig. 13 to 18, a mounting boss 22 extending upward is convexly provided at the top of the base 20 near the rear end of the base 20, a connecting plate 12 corresponding to the mounting boss 22 is provided at the side of the side plate 11 near the rear end of the side plate 11, a base mounting hole 221 is provided on the mounting boss 22, a liner mounting hole 121 corresponding to the base mounting hole 221 is provided on the connecting plate 12, and the connecting plate 12 passes through the liner mounting hole 121 through an axial screw 3 to be matched with the base mounting hole 221 to be fixedly connected with the mounting boss 22. Specifically, the base 20 is provided with a mounting boss 22 and the inner container 10 is provided with a connecting plate 12, respectively, and the positions of the mounting boss 22 and the connecting plate 12 are set to correspond, and further arranging base mounting holes 221 and inner container mounting holes 121 on the mounting bosses 22 and the connecting plate 12 at corresponding positions, finally penetrating the inner container mounting holes 121 through axial screws 3 and being matched and connected with the base mounting holes 221, thus realizing the fastening connection of the connecting plate 12 and the mounting bosses 22, thus, under the embedding fit of the side plate 11 of the inner container 10 and the groove 21 of the base 20, the connection of the inner container 10 and the rear end position of the base 20 is further strengthened through the arrangement of the axial screw 3, the mounting boss 22 and the connecting plate 12, the connection between the inner container 10 and the base 20 is reinforced at the front end and the rear end in combination with the hinge support 30, respectively, so that it can be further ensured that the assembly of the inner container 10 and the base 20 is more stable and efficient.

In this embodiment, as shown in fig. 12, the bottom of the side plate 11 is provided with a plug-in connector 40, and the plug-in connector 40 is inserted into the groove 21. Specifically, the plug-in unit 40 has certain elasticity, and when the plug-in unit 40 is inserted into the groove 21, the plug-in unit 40 abuts against the inner wall of the groove 21, and the plug-in unit 40 is prevented from coming out of the groove 21 by the friction force between the plug-in unit 40 and the inner wall of the groove 21, so that the embedded connection between the plug-in unit 40 and the groove 21 is realized.

Further, the plug-in unit 40 may be of a unitary or intermittent construction. Preferably, in the present embodiment, there are a plurality of plug connectors 40, and the plurality of plug connectors 40 are arranged at intervals along the length direction of the bottom of the side plate 11, and each plug connector 40 is inserted into the groove 21 so that the inner container 10 is assembled and connected with the base 20. By arranging the plurality of plug connectors 40 at the bottom of the side plate 11 of the inner container 10 and arranging the plug connectors 40 at intervals along the length direction of the bottom of the side plate 11, when the side plate 11 is inserted into the groove 21 of the base 20, the plug connectors 40 are also inserted into the groove 21 at the same time, and because a space interval is formed between every two adjacent plug connectors 40, the existence of the space interval can avoid the contact with the groove wall of the groove 21, which is equivalent to reducing the contact area between the side plate 11 and the groove wall of the groove 21, namely reducing the contact area between the whole inner container 10 and the base 20, thereby reducing the difficulty of inserting the side plate 11 of the inner container 10 into the groove 21 of the base 20, further reducing the assembly difficulty between the inner container 10 and the base 20, thus, the assembly between the inner container 10 and the base 20 is easier to realize, and the assembly efficiency between the inner container 10 and the base 20 is improved, the assembly production cost between the liner 10 and the base 20 is reduced, and the production benefit of enterprises is greatly improved.

In this embodiment, as shown in fig. 9 and 17, the top of the base 20 is convexly provided with a positioning boss 50 and a guiding boss 60 which are arranged at intervals, a groove 21 is formed between the positioning boss 50 and the guiding boss 60, and the groove 21 includes a bottom mounting surface 23 formed on the top of the base 20, a first side mounting surface 51 formed on the positioning boss 50, and a second side mounting surface 61 formed on the guiding boss 60; the side plate 11 abuts against the first side mounting surface 51, and each plug 40 abuts against the bottom mounting surface 23 and the second side mounting surface 61. Specifically, when the plug-in connector 40 provided at the bottom of the side plate 11 of the inner container 10 is inserted into the groove 21, the bottom of the side plate 11 and the plug-in connector 40 are restricted by the positioning boss 50 and the guide boss 60 which together form the groove 21. That is, the first side mounting surface 51 limits the lateral plate 11 to move and displace in the peripheral horizontal direction, the second side mounting surface 61 limits the plug connectors 40 to move and displace in the peripheral horizontal direction, the bottom mounting surface 23 limits the plug connectors 40 and the lateral plate 11 to move and displace vertically and downwardly, and the friction force generated between the first side mounting surface 51 and the second side mounting surface 61 and between the lateral plate 11 and the plug connectors 40 can limit the plug connectors 40 and the lateral plate 11 to move and displace vertically and upwardly, so that the position stability of the assembled liner 10 can be effectively ensured.

In the prior art, in order to ensure that the inner container 10 is more easily assembled with the base 20, it is a common practice to set the width of the groove 21 on the base 20 to be larger, and generally the width of the groove 21 is set to be thicker than the inner side of the inner container 10 by more than 4mm, so that the inner container 10 can be ensured to be more easily assembled with the base 20, but this causes the side plate 11 to be further away from the edge of the base 20, and the washing cavity formed by the enclosure between the inner container 10 and the base 20 is reduced.

However, in the present embodiment, the width of the groove 21 is 1mm to 3mm thicker than the width of the side plate 11, and specifically, the width of the groove 21 is 1mm, 2mm, or 3mm thicker than the width of the side plate 11. That is, the width of the groove 21 can be set to be at least 1mm thicker than the thickness of the side plate 11. The narrower the width of the groove 21, the positioning projection 50 and the guiding projection 60 forming the groove 21 can be set to a position closer to the edge of the top of the base 20, so that the washing cavity enclosed between the liner 10 and the base 20 can be larger in a limited volume. In this embodiment, even if the width of the recess 21 is set to be 1mm thicker than the thickness of the side plate 11, the connector 40 can be easily inserted into the recess 21 by the plurality of connectors 40 provided at intervals.

In this embodiment, as shown in fig. 9 to 10, the guide boss 60 includes a limiting plate 70 and a guide plate 80, the top end of the limiting plate 70 is connected with the top of the base 20 and is arranged along the vertical direction, the guide plate 80 includes a support portion 81 and a guide portion 82, the support portion 81 is connected to the outer side of the limiting plate 70, a deformation prevention step 90 is formed between the inner side surface of the support portion 81 and the top end surface of the limiting plate 70, the guide portion 82 extends upwards from the top end surface of the support portion 81, and a guide arc surface 83 arranged from the top end surface of the guide portion 82 to the bottom end surface of the guide portion 82 is formed on the inner side surface of. Specifically, the guide plate 80 of the guide boss 60 serves to guide the attachment of the connector 40 to be attached to the base 20, and the position restricting plate 70 of the guide boss 60 serves to restrict the position of the connector 40 which has been inserted into the recess 21. Wherein, the inside surface of the guide portion 82 of the guide plate 80 is formed with a guide arc surface 83 arranged from the top end surface of the guide portion 82 to the bottom end surface of the guide portion 82, so the plug connector 40 can be well guided and limited inside the limit plate 70 by the guide arc surface 83, and the thickness of the guide plate 80 can be properly designed due to the deformation prevention step 90 formed between the inside surface of the support portion 81 of the guide plate 80 and the inside surface of the limit plate 70, and the deformation prevention step 90 can effectively prevent the guide plate 80 from being distorted and deformed during injection molding, thereby not only avoiding the possibility of shrinkage due to the excessive thickness of the guide plate 80, but also avoiding the distortion due to the excessive thickness of the guide plate 80. Because the groove 21 is deformed once the guide projection 60 is distorted, the insertion of the plug 40 into the groove 21 is not well matched with the groove 21 due to the deformation of the groove 21, and the assembly between the liner 10 and the base 20 is difficult. Structural design such in this embodiment can effectively avoid whole direction boss 60 distortion to appear when moulding plastics, and structural design practicality is strong.

Further, the arc center of the guiding arc 83 (i.e., the center of the circle to which the guiding arc 83 belongs) is located outside the stopper plate 70 and outside the guide plate 80. This ensures that the guide arc 83 is formed to be convex in the inward direction, and thus functions to guide the installation of the plug 40 by being tangent to the plug 40 when the guide liner 10 is installed. Here, as shown in fig. 10, in order to better display the bottom end surface of the guide portion 82 and the top end surface of the support portion 81, the bottom end surface of the guide portion 82 and the top end surface of the support portion 81 are shown by a dotted line indicated in a lateral direction, that is, the guide portion 82 and the support portion 81 are connected to each other such that the bottom end surface of the guide portion 82 and the top end surface of the support portion 81 overlap. Preferably, the guide portion 82 and the support portion 81 are integrally molded.

In addition, in the prior art, in order to ensure that the guide pieces mounted on the guide liner 10 are prevented from deforming, the guide pieces are designed to be thicker, and although the thicker guide pieces can prevent deformation to a certain extent, shrinkage occurs during injection molding production, so that a person skilled in the art can design the maximum thickness of the guide structure to be about 5mm in consideration of the problems of avoiding shrinkage and easy deformation of the guide pieces. In practice, however, if it is necessary to design the guide structure even further thinner, there is only a very limited thickness margin that can be reduced. However, the guide boss 60 designed in the present embodiment can be designed to be about 4mm, even less than 4mm, at the thickest part by the above-mentioned structural limitation, and in the case of further reducing the thickness of the thickest part of the guide boss 60, it can also be ensured that the guide boss 60 does not have injection molding distortion.

More specifically, as shown in fig. 10, the deformation prevention step 90 of the present embodiment is designed such that a step difference is formed between the supporting portion 81 of the guide plate 80 and the limiting plate 70, and thus the joint between the guide plate 80 and the limiting plate 70 is formed at the position of the deformation prevention step 90, so that even if an external force is applied to the guide plate 80, if the guide plate 80 tends to be distorted, the guide plate 80 is prevented from being distorted under the limitation of the deformation prevention step 90, and thus the occurrence of injection molding distortion can be effectively prevented.

Further, as shown in fig. 9 to 10, the supporting portion 81 of the guide plate 80 in the embodiment is connected to the outer side of the position limiting plate 70, that is, the supporting portion 81 of the guide plate 80 is not directly connected to the outer side of the position limiting plate 70, and specifically, a connecting portion 100 having a certain thickness is provided between a portion of the inner side surface of the supporting portion 81 of the guide plate 80 close to the bottom end surface of the supporting portion 81 and a portion of the outer side surface of the position limiting plate 70 close to the top end surface of the position limiting plate 70, that is, the connecting portion 100 is connected between the supporting portion 81 and the position limiting plate 70, and the connecting portion 100 may be integrally formed with the position limiting plate 70, or the connecting. Preferably, the stopper plate 70, the connecting portion 100 and the guide plate 80 are integrally formed. The connecting portion 100 can reduce the deformation of the connecting portion between the limiting plate 70 and the supporting portion 81 of the guide plate 80, enhance the strength of the connecting portion between the limiting plate 70 and the supporting portion 81 of the guide plate 80, and further effectively prevent the distortion from occurring when the supporting portion 81 of the guide plate 80 receives the force for driving the distortion of the guide plate 80, thereby avoiding the poor product caused by the distortion of the guide boss 60.

Here, as shown in fig. 10, in order to better show the connection portion 100, a connection portion 100 and an inner side surface of the support portion 81 are shown by a dotted line marked vertically, that is, the connection portion 100 and the support portion 81 are connected to each other such that the outer side surface of the connection portion 100 and the inner side surface of the support portion 81 overlap.

In this embodiment, as shown in fig. 9 to 10, the guiding boss 60 further includes a plurality of guiding ribs 85, each guiding rib 85 is disposed on the deformation preventing step 90 and arranged at intervals along the length direction of the deformation preventing step 90, the bottom end surface of each guiding rib 85 is connected to the top end surface of the limiting plate 70, and the outer side surface of each guiding rib 85 is connected to the inner side surface of the supporting portion 81. The number of the guiding ribs 85 may be set more practically, for example, five, six, or less than five or more than six. Specifically, the arrangement of the guide ribs 85 can strengthen the connection strength between the limiting plate 70 and the guide plate 80, so that the connection stability between the limiting plate 70 and the guide plate 80 is improved; and the guiding cambered surface 83 formed on the inner side surface of the guiding part 82 of the guiding plate 80 can be connected, so that when the inner container 10 of the dishwasher is guided to be installed on the base 20, the inner container can be guided by the guiding cambered surface 83 firstly, then the inner container is continuously guided by the inner side surface of the guiding rib 85, and finally the part where the inner container 10 of the dishwasher is connected with the base 20 can be guided to the inner side of the limiting plate 70.

More importantly, as shown in fig. 9-10, the guiding rib 85 is arranged on the anti-deformation step 90, and the guiding rib 85 is fixedly connected with the supporting portion 81 and the limiting plate 70, so that once external force causes the guiding plate 80 to be distorted, the guiding rib 85 and the anti-deformation step 90 are matched to prevent the distortion tendency from occurring, so that the injection molding distortion of the guiding plate 80 can be effectively prevented, and the injection molding distortion of the guiding boss 60 is avoided.

Moreover, each guide rib 85 is arranged at intervals, so that the function of preventing distortion can be effectively achieved, the whole thickness of the guide boss 60 cannot be thickened, and the phenomenon of shrinkage during injection molding cannot occur.

Further, the respective guide ribs 85 are arranged in parallel with each other. Meanwhile, the respective guide ribs 85 are provided at equal intervals. The design can make the supporting force of each guide rib 85 on the guide part 82 and the limiting plate 70 more uniform and effective. But also the guiding action to the inner container 10 is more effective.

In the present embodiment, as shown in fig. 10, the angle C formed between the inner surface of each guide rib 85 and the tip end surface of the stopper plate 70 is 60 ° to 80 °. Structural design like this can ensure that the medial surface of direction muscle 85 forms fine linking with direction cambered surface 83, cooperates like this to lead cambered surface 83 and install the inner bag 10 guide that needs to install on base 20 jointly. And this kind of structural design can be in the design direction muscle 85 of maximize in limited space, it is better to the supporting part 81 of deflector 80 and limiting plate 70's connection, it is bigger to ensure the intensity of the supporting part 81 of deflector 80 and limiting plate 70's connection, and this structural design can also avoid joining in marriage with direction cambered surface 83 and accomplish the direction installation back to inner bag 10, cause the interference to the installation of inner bag 10, that is to say, contained angle C that forms between the medial surface of direction muscle 85 and the top terminal surface of limiting plate 70 can maximize in 60 ~ 80 angle scope exert its direction and the installation of strengthening the effect of inner bag 10 not interfered in the time. Specifically, the angle C formed between the inner side surface of the guide rib 85 and the tip end surface of the stopper plate 70 may be 60 °, 65 °, 70 °, 75 °, or 80 °. When the included angle C formed between the inner side surface of the guide rib 85 and the top end surface of the stopper plate 70 is smaller than 60 °, the reinforcing strength of the connection between the support portion 81 of the guide plate 80 and the stopper plate 70 may be weakened, and the liner 10 may not be better connected with the guide arc surface 83 to be guided. When the included angle C formed between the inner side surface of the guide rib 85 and the top end surface of the limiting plate 70 is greater than 80 °, the installation of the liner 10 may be directly interfered, the liner 10 may be deformed, and the local thickness of the guide rib 85 is increased, so that the possibility of shrinkage during injection molding also exists.

In this embodiment, as shown in fig. 10, the inner side surface of each guide rib 85 is tangent to the guide arc surface 83. Specifically, there is not the crest line in the medial surface of direction muscle 85 and the junction of direction cambered surface 83, can be so that when leading the installation to inner bag 10, inner bag 10 further leads through the medial surface of direction muscle 85 from the direction of direction cambered surface 83 down, and then at last with inner bag 10 guide to the inboard of limiting plate 70. Whole process, the structure that causes the blockking does not exist to inner bag 10 to direction boss 60 of this embodiment, there is hindered phenomenon to appear when can not having the installation of inner bag 10 promptly, direction muscle 85 structural design is reasonable ingenious, realize strengthening the stability of being connected between the supporting part 81 of limiting plate 70 and deflector 80, direction muscle 85 makes direction boss 60 realize preventing the distortion of moulding plastics with the cooperation of shape step 90 of preapring for an unfavorable turn of events simultaneously, realization that simultaneously can be better guides inner bag 10 and base 20 equipment connection.

Further, as shown in fig. 10, the inner edge of the bottom end of the guide rib 85 is flush with the inner side surface of the stopper plate 70. Design like this can ensure but when inner bag 10 and limiting plate 70 butt, thereby can not receive the butt of the interior side reason of the bottom of direction muscle 85 to influence with limiting plate 70, that is to say, avoid the inner panel to accomplish and form the clearance between the installation back and the limiting plate 70, ensure the stability and the reliability of inner bag 10 installation.

In this embodiment, as shown in fig. 10, the arc radius R of the guide arc 83 is 10mm to 20 mm. Specifically, the arc radius R of the guide arc 83 may be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, or 20 mm. The design of the cambered surface radius value of the guide cambered surface 83 can effectively ensure that the installation function of the guide liner 10 is realized; meanwhile, the guide part 82 does not extend outwards to form an excessively large open opening, which affects the use of the dishwasher or the stability of the installation of the inner container 10 of the dishwasher.

In this embodiment, as shown in fig. 10, the width of the deformation prevention step 90 is greater than the width of the limiting plate 70, and the width X of the deformation prevention step 90 is 2mm to 5 mm. Specifically, the width of the step 90 of preapring for an unfavorable turn of events is the width of limiting plate 70 and the width of connecting the connecting portion 100 between the supporting part 81 of limiting plate 70 and deflector 80 in addition, so make the width of the step 90 of preapring for an unfavorable turn of events be greater than the width of limiting plate 70, and then the difference X of the step 90 of preapring for an unfavorable turn of events who forms, the width X design of the step 90 of preapring for an unfavorable turn of events is in the scope of 2mm ~ 5mm effectively strengthen the intensity of being connected between limiting plate 70 and the deflector 80 and play and prevent under the distortion's the condition, avoid the thickness of junction between limiting plate 70 and the deflector 80 too big and appear moulding plastics the phenomenon of contracting, also avoid leading to the boss 60 local position too thick and lead to the use. Wherein, the width X of the deformation preventing step 90 may be 2mm, 3mm, 4mm or 5 mm.

In the present embodiment, as shown in fig. 10, the outer side surface of the guide plate 80 is formed with a support arc surface 84 arranged from the top end surface of the guide portion 82 to the bottom end surface of the support portion 81.

In this embodiment, as shown in fig. 9 to 10, the guiding boss 60 further includes a plurality of supporting ribs 86, and each supporting rib 86 is disposed at intervals on the outer side surface of the guiding plate 80 and arranged from the top end surface of the guiding portion 82 to the outer side surface of the limiting plate 70. Specifically, the plurality of support ribs 86 are spaced apart from each other to prevent the thickness of the entire guide projection 60 from becoming thick at any position. The supporting ribs 86 are mainly used for strengthening the strength of the guide plate 80 and the limiting plate 70 when the liner 10 of the guiding dishwasher is installed, and when the acting force of the liner 10 on the guide plate 80 and the limiting plate 70 is avoided, the guide plate 80 and the limiting plate 70 are bent outwards due to stress.

Further, the support ribs 86 are disposed parallel to each other. Meanwhile, the respective support ribs 86 are disposed at equal intervals. The design can make the supporting force of each supporting rib 86 on the guide part 82 and the limiting plate 70 more uniform and effective. Furthermore, the plurality of support ribs 86 are respectively located between two adjacent guide ribs 85, so that the support ribs 86 are matched with the guide ribs 85, the strength of the support ribs 86 is enhanced on the inner side surface and the outer side surface of the guide plate 80 and the limiting plate 70 respectively, the positions of the guide ribs 85 and the support ribs 86 are complementary, namely the strength of the guide plate 80 and the strength of the limiting plate 70 are enhanced at the position where the support ribs 86 are not arranged between the guide plate 80 and the limiting plate 70 at the guide ribs 85, the strength of the guide plate 80 and the strength of the limiting plate 70 are enhanced at the position where the support ribs 86 are not arranged between the guide plate 80 and the limiting plate 70 at the guide plate 80, the strength of the guide plate 80 and the strength of the limiting plate 70 can be enhanced at each position in the length direction, the injection molding distortion of the guide boss 60 is further.

In this embodiment, the arc radius R of the guiding arc 83 is 10 mm-20 mm, which can ensure that the width of the groove 21 is 1 mm-3 mm thicker than the width of the side plate 11, and the groove 21 with the width can reduce the whole volume of the base 20 of the dishwasher under the condition of ensuring that the washing inner cavity is large enough, so as to design the base 20 of the dishwasher more compactly.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. The utility model provides a base subassembly, includes base and balancing weight, its characterized in that: the rear end of the base is provided with a mounting groove with a shape matched with that of the balancing weight, the mounting groove comprises a groove bottom wall, a groove top wall, a groove inner wall and two groove side walls, two sides of the base are provided with screw mounting holes which respectively penetrate through the two groove side walls and are communicated with the mounting groove, two ends of the balancing weight in the length direction are provided with balancing screw holes, the balancing weight is accommodated in the mounting groove, the surfaces of the balancing weight, corresponding to the positions of the groove bottom wall, the groove top wall, the groove inner wall and the groove side walls, are respectively abutted against the groove bottom wall, the groove top wall, the groove inner wall and the groove side walls, the balancing screw holes correspond to the positions of the screw mounting holes and are connected with the balancing screw holes in a locking manner through locking screws, and a space is formed between the two groove side walls and two side parts of the base, a structure for arranging the screw mounting hole and allowing the locking screw to penetrate and be fixed is arranged in the space;

the groove top wall is convexly provided with a plurality of abutting ribs facing the groove bottom wall, each abutting rib is arranged at intervals along the length direction of the groove top wall, each abutting rib abuts against the top of the balancing weight, the groove bottom wall is convexly provided with a plurality of buffering ribs facing the groove top wall, each buffering rib is arranged at intervals along the length direction of the groove bottom wall, each buffering rib abuts against the bottom of the balancing weight, and the buffering ribs are used for reducing friction force generated when the balancing weight and the mounting groove are assembled.

2. The base assembly of claim 1, wherein: the front end of each abutting rib is provided with an arc chamfer.

3. The base assembly of claim 1, wherein: the buffer ribs are arranged at equal intervals along the length direction of the groove bottom wall.

4. The base assembly of claim 1, wherein: the buffer rib comprises an upper bottom edge, a lower bottom edge and a waist edge connected between the upper bottom edge and the lower bottom edge, the width L of the upper bottom edge is 0.4-0.9 mm, the distance H between the upper bottom edge and the lower bottom edge is 2-5 mm, and the included angle Z between the waist edge and the lower bottom edge is 75-85 degrees.

5. The base assembly of claim 1, wherein: the buffering muscle includes buffering muscle portion and last buffering muscle portion down, go up buffering muscle portion in the top of buffering muscle portion extends to the oblique top and sets up down, just go up buffering muscle portion with the contained angle Y between the buffering muscle portion down is 35 ~ 70.

6. The base assembly of claim 5, wherein: the upper buffering rib part comprises a top end face, the lower buffering rib part comprises a bottom end face, the distance h between the top end face and the bottom end face is 3-7 mm, and the distance l from the tail end of the upper buffering rib part to the side end, back to the extending direction of the upper buffering rib part, of the lower buffering rib part is 4-10 mm.

7. The base assembly of any one of claims 1 to 3, wherein: and a buffer cushion is arranged on the surface of the balancing weight.

8. A dishwasher, characterized by: the base assembly comprises an inner container and the base assembly as claimed in any one of claims 1 to 7, wherein the inner container is arranged above the base and is assembled and connected with the base.

9. The dishwasher of claim 8, wherein: the dishwasher further comprises a hinge support and a hinge screw, the hinge support comprises a vertical plate and a transverse folding plate which are connected with each other, the inner container comprises a side plate, a position of the side plate, which is close to the front end of the side plate, is provided with an inner container fastening hole, the side part of the base is provided with a base fastening hole corresponding to the position of the inner container fastening hole, the vertical plate is provided with a hinge fastening hole, the hinge screw is sequentially connected with the inner container fastening hole, the base fastening hole and the hinge fastening hole so as to fasten the side plate, the base and the hinge support, the vertical plate upwards extends and is fixedly connected with the inner container, and the transverse folding plate is connected with the rear end of the vertical plate and faces the rear end of the base and extends and is fixedly connected with the side part of the base.

10. The dishwasher of claim 9, wherein: the base is close to the protruding installation boss that upwards extends that is equipped with in top of base rear end, the curb plate is close to the lateral part extension of curb plate rear end be equipped with the connecting plate that the installation boss position corresponds, the base mounting hole has been seted up on the installation boss, be equipped with on the connecting plate with the inner bag mounting hole that base mounting hole position corresponds, just the connecting plate passes through axial screw the inner bag mounting hole with the cooperation of base mounting hole is with fastening connection the installation boss.

11. The dishwasher of claim 9, wherein: the bottom of curb plate is equipped with the plug connector, just the plug connector along the length direction of the bottom of curb plate arranges, the base orientation the protruding location boss and the direction boss that are equipped with the interval arrangement in top of inner bag, the location boss with form the recess between the boss of leading, the plug connector insert locate in the recess.

12. The dishwasher of claim 11, wherein: the direction boss includes limiting plate and deflector, the bottom of limiting plate with the top of base is connected and is arranged along vertical direction, the deflector includes supporting part and guide part, the supporting part connect in the outside of limiting plate, just the medial surface of supporting part with form the shape step of preapring for an unfavorable turn of events between the top face of limiting plate, the guide part by the top face of supporting part upwards extends, just the medial surface of guide part is formed with by the top face of guide part extremely the direction cambered surface that the bottom face of guide part was arranged, the arc center of direction cambered surface is located the outside of limiting plate with the outside of deflector.

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