CN210300893U

CN210300893U - Drawer type dish washer of built-in water pipe

Info

Publication number: CN210300893U
Application number: CN201820961210.0U
Authority: CN
Inventors: 庞士魁; 王豪杰; 潘叶江; 其他发明人请求不公开姓名
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2017-12-30
Filing date: 2018-06-21
Publication date: 2020-04-14
Anticipated expiration: 2028-06-21
Also published as: CN108670155B; CN210169990U; CN108670154A; CN108670155A

Abstract

The utility model discloses the creation relates to dish washer technical field, especially involves drawer type dish washer. The utility model provides a drawer type dish washer of built-in water pipe, includes the casing, is equipped with the apron on the casing, is equipped with the drawer that can remove on the casing be provided with the top spray arm that has the hole for water spraying on the apron be equipped with circulating water pump on the bottom surface of drawer through top spout inlet pipe intercommunication between circulating water pump and the top spray arm, the top spouts the inlet pipe can remove along with the removal of drawer, the top spouts the inlet pipe setting inside the drawer, in addition the utility model discloses still provide a drawer type dish washer of upper and lower spray arm. The utility model discloses have the big beneficial effect at no dead angle of washing dynamics and washing.

Description

Drawer type dish washer of built-in water pipe

The utility model discloses the application requires that the name that the applicant applied for to the chinese state intellectual property office in 2017 12 month 30 is "a drawer type dish washer of built-in water pipe", application number is "201711491976.3" utility model patent application and the name is "a drawer type dish washer of built-in water pipe", application number is the priority of the utility model patent application of "201721929588.4".

Technical Field

The utility model relates to a dish washer technical field especially involves drawer type dish washer.

Background

As a novel dishwasher form, the drawer-type dishwasher has the characteristics of being embedded into a cabinet, compact in structure and free of squatting or stooping operation compared with a pull-down door type dishwasher, so that a user can obtain better use experience.

At present, drawer type dish washers usually have only one spray arm, and all are in the form of lower spray arms positioned at the bottom of a washing cavity, and the lower spray arms spray water upwards while rotating when working, so as to clean dishes. However, compared with the multi-layer spray arm mode of the pull-down door type dishwasher, the drawer type dishwasher has poor spraying effect, only because the direction of the water jet mainly upwards is single, and the bowl basket and the tableware have blocking effect, the lower spray arm is difficult to achieve sufficient spraying coverage, thereby causing the problems of insufficient washing or even unavailable washing in the washing cavity of the dishwasher, especially in the upper area.

If the arrangement of the top spray arm is added in the drawer type dish washing machine, the spraying effect is obviously improved, but the structural characteristics of the drawer type dish washing machine also provide great difficulties for designers, so that the addition of the top spray arm can be realized by a scheme which is innovative enough. Therefore, the current design of the spraying mode and the spraying system of the drawer dishwasher still needs to be broken through.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drawer type dish washer which is different from the existing bottom spray washing so as to improve the dish washing effect of the dish washer.

A drawer type dish washing machine with a built-in water pipe comprises a shell, wherein a cover plate is arranged on the shell, a movable drawer is arranged on the shell, the cover plate can move up and down relative to the shell, a top spray arm with a water spray hole is arranged on the cover plate, a circulating water pump is arranged on the bottom surface of the drawer, and the circulating water pump is communicated with the top spray arm through a water inlet pipe. Drawer type dish washer still possesses the necessary structure of function of realizing washing dishes among this technical scheme, like filter equipment, drainage system etc. nevertheless this is not the improvement point of the utility model, and regarding these structures, technical personnel in the field can refer to prior art. Set up the top spray arm and supply water to the top spray arm through circulating water pump among this technical scheme, the top spray arm is from last down spraying water, combines the up spray rinsing of following of bottom spray arm, and the replenishment of mutually supporting can improve clean effect and cleaning efficiency. In addition, the inner container in the technical scheme is sealed by the cover plate, and particularly, when the dishwasher works, the cover plate is pressed on the inner container to seal the inner container. When the dishwasher stops working, the cover plate moves upwards to leave the inner container, and the inner container can be drawn out of the shell at the moment. When the dishwasher works again, the cover plate moves downwards until the cover plate is abutted against the inner container, and the inner container is sealed.

Further, the inlet pipe comprises a top spray inlet pipe and a top water pipe, and the top spray inlet pipe for supplying water to the top spray arm can move along with the movement of the drawer, namely, the top spray inlet pipe cannot influence the movement of the drawer. The top-spraying water inlet pipe is arranged inside the drawer, so that the structure of the dishwasher is compact, and the whole volume of the dishwasher is reduced. The top water pipe is arranged on the cover plate and can move along with the movement of the cover plate. When the cover plate is sealed with the inner container, the top water pipe is communicated with the water inlet pipe, the circulating water pump supplies water to the top spray arm, and the dish washing machine starts to clean. When the cover plate is separated from the inner container, the water jacking pipe is disconnected with the water inlet pipe, the water circulation pump stops supplying water, and the dish washing machine stops cleaning.

Furthermore, the top water pipe is arranged on the cover plate, the top water pipe extends from the center of the cover plate to the edge of the cover plate, the top spraying water inlet pipe extends along the bottom surface and the side surface of the drawer, the top water pipe is communicated with the top spraying water inlet pipe at the edge of the cover plate, and the top water pipe is communicated with the top spraying arm at the center of the cover plate. The top spout inlet tube in this technical scheme can be the water pipe of plastics preparation, fixes the bottom surface at the drawer, moves along with the drawer motion. It will be appreciated by those skilled in the art that the top nozzle and the top spray arm have water inlet passages therein.

Furthermore, the water jacking pipe comprises a spray arm mounting seat, and the top spray arm is connected with the spray arm mounting seat through the clamping seat. The clamping seat is clamped with the spray arm mounting seat, so that the top spray arm is fixed on the spray arm mounting seat. The spray arm mounting seat is provided with a clamping hole, the clamping seat is provided with a clamping block matched with the clamping hole, and the spray arm mounting seat is also provided with a water outlet. In fact, a clamping block can also be arranged on the spray arm mounting seat, and a clamping hole matched with the clamping hole is formed in the clamping seat. The clamping holes and the water outlets on the spray arm mounting seat are alternately arranged. In practice, the spray arm mounting seat is provided with four clamping holes and four water outlets, and after the clamping holes and the water outlets are alternately arranged, water is discharged from the periphery of the spray arm mounting seat, the water inlet requirement of the top spray arm is guaranteed, and the clamping seat is more firmly connected with the spray arm mounting seat.

The utility model discloses still provide another top spray arm mounting structure, this technical scheme includes the lock joint seat, the lock joint seat includes main part and base, the main part sets up on the base, the main part is the ring form be equipped with the apopore in the main part of lock joint seat, the apopore will main part branch upper portion and lower part, along the delivery port axis direction of top water pipe is provided with annular extension be equipped with the lug in the extension, the lug with the upper portion contact of main part, just the lug is right the upper portion of main part forms the support, top spray arm sets up on the lock joint seat and with the apopore intercommunication of lock joint seat. Different from the top spray arm mounting scheme explained in the foregoing, in the technical scheme, the projection is arranged on the top water pipe, and the water outlet hole is arranged on the buckling seat.

Furthermore, a clamping groove is formed in the main body, a gap is formed between the bottom surface of the clamping groove and the upper portion of the main body, and the length of the gap is larger than or equal to that of the bump. When the water pipe is installed, the extending portion of the water pipe is inserted into the clamping groove, the notch is used for allowing the protruding block to penetrate through, the buckling seat is rotated after the extending portion is inserted into the clamping groove, the protruding block penetrates through the notch, the protruding block is in contact with the upper portion of the main body, the protruding block supports the upper portion of the main body, and finally the buckling seat is hung on the extending portion of the water pipe.

Furthermore, a guiding part is arranged on the bump, a guiding groove is arranged on the clamping groove, and the guiding part is matched with the guiding groove. Through the cooperation of the leading-in part and the leading-in groove, the lug can be quickly inserted into the clamping groove.

Furthermore, a conical water guide platform is arranged on the base. This is to make the water turn more smoothly, flow into the inner cavity of the top spray arm horizontally from the water outlet hole of the fastening seat.

Further, the water inlet of top water pipe is reverse loudspeaker form, the delivery port of top spout inlet tube also is loudspeaker form, the water inlet of top water pipe inserts the delivery port of top spout inlet tube, the water inlet of top water pipe with it is sealed through the sealing washer between the delivery port of top spout inlet tube, the sealing washer sets up the water inlet of top water pipe and/or on the delivery port of top spout inlet tube. When the water inlet of the top water pipe is inserted into the water outlet of the top spraying water inlet pipe, the sealing ring is extruded to realize sealing.

Furthermore, a check valve is arranged in a water inlet of the top water pipe, and a top opening device matched with the check valve is arranged in a water outlet of the top spraying water inlet pipe. The check valve is a sphere, and the jacking device is a jacking column. When the drawer is pushed, the cover plate covers the opening above the drawer, meanwhile, the water inlet of the top water pipe is inserted into the water outlet of the top spraying water inlet pipe, the top column jacks up the ball to form a gap, and at the moment, the top spraying water inlet pipe is initially communicated with the top water pipe. And then the dishwasher starts to work, and water conveyed by the circulating water pump can further flush the ball body after passing through the top water pipe, so that the top water pipe and the top spraying water inlet pipe are communicated to the maximum extent. When the drawer is about to be pulled out, the cover plate is separated from the drawer, meanwhile, the water inlet of the top water pipe is disconnected with the water outlet of the top spraying water inlet pipe, and at the moment, the ball body can sink and block the water inlet of the top water pipe under the combined action of the self gravity and the residual water of the top water pipe, so that the non-return effect is formed. To foretell check valve, the utility model provides a concrete structure the water inlet end of holding up the water pipe is equipped with the valve pocket, the spheroid can move in the valve pocket, the valve pocket bottom is the ball seat be equipped with the round hole in the ball seat, the spheroid is placed on the ball seat, drops from the ball seat in order to prevent the spheroid, the diameter of round hole will be less than spheroidal diameter. Furthermore, a water outlet is arranged on the side surface of the valve cavity, the water outlet is an inner cavity communicated with the water ejecting pipe and can be square or in other suitable shapes, and in order to prevent the ball body from entering the inner cavity of the water ejecting pipe and allow water to enter the inner cavity of the water ejecting pipe, the width of the water outlet is larger than the diameter of the ball body and the height of the water outlet is smaller than the diameter of the ball body, or the width of the water outlet is smaller than the diameter of the ball body and the height of the water outlet is larger than the diameter of the.

On the basis, the utility model also provides a drawer dish washer that specifically has upper and lower spray arm the drawer bottom surface still is equipped with the lower spray arm that has the hole for water spraying, water diversion structure is connected to circulating water pump's delivery port, the top spout inlet tube with spray arm down the inlet tube respectively with water diversion structure intercommunication. The lower spray arm and the top spray arm respectively form water columns sprayed upwards from the bottom and sprayed and washed downwards from the top, and the two spray arms are opposite in rotation direction, so that the water spraying direction is more diversified, the problem of blocking of tableware is better solved, the washing coverage is more comprehensive, and the condition that the washing in the washing cavity of the drawer type dish washing machine, particularly the washing in the upper area is insufficient is effectively improved.

Further, the bottom surface of the cover plate is a concave area, the top spray arm is fixed in the concave area of the cover plate, and the lowest point of the bottom surface of the cover plate is equal to or lower than the lowest point of the top spray arm. Thus, the top spray arm assembly will be hidden from exposure in the recessed area of the cover plate.

Compared with the prior art, the utility model discloses at least, including following beneficial effect:

(1) the utility model discloses well drawer dish washer adopts the top spray arm water spray, has increased the position and the angle of rivers spray rinsing, combines end spray arm can effectively improve clean effect and cleaning efficiency.

(2) The utility model discloses well top spouts the inlet pipe setting in the drawer, and the top water pipe breaks off when the drawer is pulled out, connects when the drawer closes and switches on, and such structure makes dish washer compact structure, and the influence of leaking is low, and can not influence the motion of drawer.

(3) The utility model discloses an among the built-in top water injection scheme, be equipped with the check valve on the top water pipe, prevent rivers backward flow.

(4) The utility model discloses a top spray arm passes through the cassette to be connected on a water pipe, firm in connection.

(5) The utility model provides a card hole and delivery port on the spray arm mount pad set up in turn, can combine block and play water function simultaneously.

(6) The utility model also provides a drawer dish washer of spray arm about for it does not have the dead angle to wash.

Drawings

Fig. 1 is an overall schematic view of a drawer dishwasher according to embodiment 1 of the present invention, showing a drawer pulled out.

Fig. 2 is a schematic sectional view of a drawer dishwasher according to embodiment 1 of the present invention when closed.

Fig. 3 is a schematic sectional view of the drawer dishwasher according to embodiment 1 of the present invention when pulled out.

Fig. 4 is a schematic view of a cross-sectional structure of the top water pipe and the top spray water inlet pipe in the closed state when they are initially turned on according to the embodiment of the present invention.

Fig. 5 is a schematic view of a cross-sectional structure of a top water pipe and a top spray water inlet pipe provided in the embodiment of the present invention in a closed state when they are completely turned on.

Fig. 6 is a schematic sectional structure view of the top water pipe and the top spray water inlet pipe of the present invention after being disconnected and separated according to embodiment 1.

Fig. 7 is a schematic view of a partial cross-sectional structure of a water inlet end of a water ejecting pipe provided in embodiment 1 of the present invention.

Fig. 8 is a schematic sectional view of three valve cavities in the water inlet end of the water pipe according to embodiment 1 of the present invention.

Fig. 9 is a schematic view of a partial cross-sectional structure of the water outlet end of the top-spraying water inlet pipe provided in embodiment 1 of the present invention.

Fig. 10 is a schematic view of a mounting manner of a top spray arm of a drawer dishwasher according to embodiment 1 of the present invention.

Fig. 11 is an enlarged view of the portion C of fig. 10.

Fig. 12 is a schematic cross-sectional view of a drawer dishwasher with an additional lower spray arm according to embodiment 1 of the present invention in a drawer pulled-out state.

Fig. 13 is a schematic cross-sectional view of a drawer dishwasher in a closed state, in which a lower spray arm is additionally installed, according to embodiment 1 of the present invention.

Fig. 14 is a sectional view of a drawer dishwasher with a lower spray arm according to embodiment 1 of the present invention in a drawer closed state.

Fig. 15 is an exploded view of the top spray arm according to embodiment 2 of the present invention.

Fig. 16 is a partial sectional view of the installation of the top spray arm provided in embodiment 2 of the present invention.

Fig. 17 is an enlarged view of a portion a in fig. 15.

Fig. 18 is an enlarged view of a portion B in fig. 16.

Fig. 19 is a schematic structural view of a fastening seat according to embodiment 2 of the present invention.

Fig. 20 is a schematic structural view of another view angle of the fastening seat according to embodiment 2 of the present invention.

Fig. 21 is a schematic structural view of the embodiment 2 of the present invention after the top water pipe and the fastening seat are installed.

Detailed Description

Example 1

Referring to fig. 1 to 14, a drawer dishwasher includes a drawer 1 opened at an upper side and a cover plate 2 capable of moving at least up and down, and the drawer 1 can be drawn out and pushed in. When the drawer 1 is pushed in, the cover plate 2 descends to cover the opening above the drawer 1 to form a closed washing cavity 10, and a bowl basket and tableware are placed in the washing cavity 10. When the drawer 1 is to be pulled out, the cover plate 2 is lifted up first and separated from the drawer 1, and then the drawer 1 can be pulled out.

In this embodiment, a top spray arm 3 is disposed in the washing chamber 10, the top spray arm 3 is provided with a plurality of spray holes, and the spray water flow direction is downward mainly for spraying and washing the tableware. The bottom surface of the cover plate 2 is a concave area 20, the top spray arm 3 is fixed at the cover plate concave area 20, and the lowest point of the top spray arm 3 is not lower than the lowest point of the cover plate 2. The top spray arm 3 can be horizontally rotated with its rotation center located in the vicinity of the center of the washing chamber 10, and thus a more sufficient washing coverage effect can be obtained. The top spray arm 3 is connected with a top water pipe 31, and a top water pipe 32 is also fixedly arranged at the cover plate recess 20. The end part of the top water pipe 32 is provided with a water outlet and a spray arm mounting seat 322, the top spray arm 3 is sleeved in the spray arm mounting seat 322 during installation, then the clamping seat 33 is installed to be connected with the spray arm mounting seat 322, the clamping seat 33 supports the top spray arm 3, and the top water pipe 32 is communicated with the inside of the top spray arm 3. A clamping hole 3221 is arranged on the spray arm mounting seat 322, a clamping block 330 matched with the clamping hole 3221 is arranged on the clamping seat 33, and a water outlet 3220 is further arranged on the spray arm mounting seat 322. The clamping holes 3221 and the water outlets 3220 on the spray arm mounting seat 322 are alternately arranged, and in this embodiment, there are four clamping holes 3221 and four water outlets 3220. The other end of the top water pipe 32 is located at the edge of the cover plate 2, here the water inlet 321. A check valve 34 is arranged in the water inlet 321, and the check valve 34 is closed when the drawer 1 is pulled out, so as to prevent water from leaking; when the drawer 1 is closed, the check valve 34 is opened, the water path is opened, and water can enter the top water pipe 32 and then the top spray arm 3. The check valve 34 of the present embodiment is a ball valve structure, i.e. a ball 340. Referring to fig. 4-9, a valve chamber 341 is provided at the inlet end of the top water pipe 32 to receive a ball 340. The bottom of the valve chamber 341 is a spherical ball seat 342, and the spherical diameter of the ball seat 342 is slightly larger than that of the ball 340. The valve chamber 341 has a cylindrical shape, and the top thereof has a spherical shape similar to the ball seat 342. The ball 340 can move up and down in the valve chamber 341.

In this embodiment, a circular hole 343 is formed in the center of the ball seat 342, and the diameter of the circular hole 343 is smaller than that of the ball 340, that is, the ball 340 cannot fall out of the circular hole 343, and water flows into the top water pipe 32 through the circular hole 343. In this embodiment, the water outlet 344 of the valve cavity 341 is disposed on a side surface of the valve cavity 341, and the water outlet 344 cannot allow the sphere 340 to pass through or completely block the sphere 340, where the water outlet 344 may be a square water outlet, and the width of the water outlet 344 is greater than the diameter of the sphere 340 and the height of the water outlet is less than the diameter of the sphere 340, or the width of the water outlet 344 is less than the diameter of the sphere 340 and the height of the water outlet is greater than the diameter of the sphere 340, so that the technical purpose that the water outlet 344 cannot allow the sphere 340 to pass through or completely block the sphere 340 can be achieved.

In this embodiment, the top pillar 314 is disposed at the water outlet end of the top-spraying water inlet pipe 31, and the top pillar 314 is located opposite to the circular hole 343 of the ball seat 342. The top pillar 314 is smaller than the circular hole 343, so that the top pillar 314 can pass through the circular hole 343 to reach the bottom position of the valve chamber 341, and will not block the circular hole 343. In this embodiment, after the drawer 1 is pushed in, i.e. when the top water pipe 32 and the top-spraying water inlet pipe 31 are closed, the top pillar 314 will lift the ball 340 to form a gap, and at this time, the top water pipe 32 and the top-spraying water inlet pipe 31 are initially conducted. Then the circulating water pump 4 operates to supply water, and the water with pressure passes through the top spray water inlet pipe 31 and then enters the top water pipe 32 upwards, and simultaneously impacts the ball 340 upwards, so that the ball 340 further leaves the ball seat 342, and the conduction reaches the maximum degree. In this embodiment, when the drawer 1 is pulled out, i.e. after the top water pipe 32 and the top spray water inlet pipe 31 are disconnected. The ball 340 is under the action of gravity and may also be added with the pressure of the accumulated water in the top water pipe 32, and will fall to block the round hole 343, so as to form a non-return structure, and prevent the accumulated water in the top water pipe 32 from dropping or leaking.

In this embodiment, three valve cavities 341 are arranged side by side at the water inlet end of the top water pipe 32 according to space limitation and flow demand considerations. Each valve chamber 341 accommodates a ball 340 therein. Accordingly, three top posts 314 are provided at the outlet end of the top spray inlet pipe 31.

The drawer 1 is fixedly provided with a top-spraying water inlet pipe 31, one end of the top-spraying water inlet pipe is provided with a water inlet 311 and is connected to the outlet of the circulating water pump 4, then the pipe body extends along the bottom surface and the wall surface of the drawer 1, and the water outlet 312 at the other end is arranged corresponding to the water inlet 321 of the top-spraying water pipe. The top spray inlet pipe outlet 312 is flared and matches the top pipe inlet 321. When the two are connected, the water inlet 321 of the top water pipe is inserted into the water outlet 312 of the top spray water inlet pipe, and the sealing ring 3210 sleeved on the water inlet 321 of the top water pipe is extruded to realize sealing. Meanwhile, a top pillar 314 is arranged in the top-spraying water inlet pipe water outlet 312 and used for opening the check valve 34 of the top-spraying water inlet pipe 321, so that the top-spraying water inlet pipe 31 is communicated with the top-spraying water inlet pipe 32, and water can flow to the top-spraying water inlet pipe 32 from the top-spraying water inlet pipe 31.

In order to improve the spray washing effect of the dishwasher, the lower spray arm 41 with the spray holes 411 is installed on the bottom surface of the drawer, the water outlet of the circulating water pump 4 is connected with the water distribution structure 61, the water distribution structure 61 can be a three-way joint, the water distribution structure 61 is respectively connected with the water inlet water path of the top spray water inlet pipe 31 and the lower spray arm 41, when the drawer dishwasher works, the lower spray arm 41 and the top spray arm 3 in the washing cavity 10 respectively form a bottom-up spray water column 120 and a top-down spray water column 110, and the rotation directions of the two spray arms can be set to be opposite, so that the spray directions of water are more various, the problem of blocking tableware is better overcome, the overall washing coverage is more comprehensive, and the washing effect and the washing efficiency of the drawer dishwasher are effectively improved.

Example 2

Embodiment 2 is basically the same as embodiment 1 except for the difference in the manner of mounting the top spray arm 3. Referring to fig. 15 to 21, in embodiment 2, a protruding portion 325 is provided around the water outlet 324 of the top water pipe 32, the protruding portion 325 extends along the axis of the water outlet 324, the protruding portion 325 is in a circular ring shape, a protrusion 3251 is provided on the protruding portion 325, in this embodiment, four protrusions 3250 are provided on the protruding portion 325, and the four protrusions 3250 are arranged at equal angles. The lead-in portions 3251 are provided on two of the four projections 3250, and the two projections 3250 are disposed opposite to each other, that is, the two projections 3250 provided with the lead-in portions 3251 are spaced apart by 180 degrees. The fastening seat 7 in this embodiment includes a circular base 70, a circular main body 72 is provided on the

base

70, 4 water outlets 78 are provided on the main body 72 at equal angular intervals, and the circular main body 72 is divided into an upper portion 73 and a lower portion 79 by the water outlets 78. Four clamping grooves 74 are arranged on the circular ring-shaped main body 72 at equal angular intervals, a gap 75 is formed between the bottom surface of each clamping groove 74 and the upper part of the main body 72, and the length of each gap 75 is greater than that of the corresponding bump 3250. A water guide table 77 is provided at an intermediate position of the base 70, and the water guide table 77 is provided inside the annular body 72. A straight rib 71 is provided on the base 70 for more conveniently rotating the fastening seat 7 for mounting and dismounting. The snap groove 74 is provided with an introduction groove 76 which is engaged with the introduction portion 3251 of the projection 3250, and the engagement of the introduction portion 3251 with the introduction groove 76 facilitates the quick attachment and detachment of the latch holder 7 to the top nozzle arm 3.

In this embodiment, the top spray arm 3 is flat, has a hollow inner cavity inside, and is provided with a plurality of water spray holes downwards for spraying tableware for cleaning. The center of the top spray arm 3 is provided with a center through hole penetrating through the upper wall and the lower wall, and the center through hole is used for being sleeved on the main body 72 of the buckling seat 7 and supported by the base 70.

In this embodiment, the top nozzle arm 5 is first mounted on the fastening base 7. And then, the four clamping grooves 74 of the fastening seat 7 face the four convex blocks 3250 of the water ejecting pipe 3, the fastening seat is sleeved upwards until the fastening seat is pushed to the head, at the moment, the guiding part 3251 is clamped into the guiding groove 76, then, the fastening seat 7 is rotated along the direction of the notch 75 of the clamping groove 74 until the four convex blocks 3250 of the water ejecting pipe 3 slide out of the clamping grooves 74, and then, the fastening seat is clamped into the four water outlet holes 78, and the installation of the fastening seat 7 on the water ejecting pipe 3 can be completed. After installation, the four water outlet holes 78 of the fastening seat 7 are internally communicated with the water outlet 324 of the top water pipe and externally communicated with the inner cavity of the top spray arm. A water guide frustum 45 is arranged in the fastening seat 7, so that water can smoothly turn and horizontally flow into the inner cavity of the top spray arm 3.

In the embodiment, the fastening seat 7 is reversely rotated during assembly and disassembly, and the four protrusions 3250 of the top water pipe 3 slide into the secondary grooves 42, and then the fastening seat 7 can be taken down.

In this embodiment, the rotation direction of the fastening seat 7 is the same as the rotation direction of the top spray arm 3 during installation, and the top spray arm 3 rotates to drive the fastening seat 7 to rotate together until the four protrusions 3250 of the top water pipe 3 abut against the main body 72 of the fastening seat 7, at this time, the fastening seat 7 cannot rotate continuously with the top spray arm 3, so that the rotation of the top spray arm 3 does not cause the fastening seat 7 to rotate reversely or even disengage.

The above-mentioned detailed description of the technical solution and the beneficial effects of the present invention have been described in detail, it should be understood that the above is only the most preferred embodiment of the present invention, not used for limiting the present invention, any modification, supplement, equivalent replacement, etc. made within the principle scope of the present invention should be included within the protection scope of the present invention.

Claims

1. The drawer type dish washing machine with the built-in water pipe comprises a shell, wherein a cover plate (2) is arranged on the shell, and a movable drawer (1) is arranged on the shell, and is characterized in that the cover plate can move up and down relative to the shell, a top spray arm (3) with a water spray hole is arranged on the cover plate (2), a circulating water pump (4) is arranged on the bottom surface of the drawer (1), and the circulating water pump (4) is communicated with the top spray arm (3) through a water inlet pipe.

2. The dishwasher of claim 1, characterized in that the water inlet pipe comprises a top-spray water inlet pipe (31) and a top-spray water pipe (32), the top-spray water inlet pipe (31) being arranged inside the drawer (1), the top-spray water inlet pipe (31) being movable with movement of the drawer (1), the top-spray water pipe (32) being arranged on the cover plate (2), the top-spray water pipe (32) being movable with movement of the cover plate (2).

3. The dishwasher of claim 2, characterized in that the top water pipe (32) is provided on the cover plate (2), the top water pipe (32) extends from the center of the cover plate (2) to the edge of the cover plate (2), the top spray water inlet pipe (31) extends along the bottom and side of the drawer (1), the top water pipe (32) communicates with the top spray water inlet pipe (31) at the edge of the cover plate (2), and the top water pipe (32) communicates with the top spray arm (3) at the center of the cover plate (2).

4. The dishwasher of claim 3, further comprising a cartridge (33), the top water pipe (32) comprising a spray arm mount (322), the top spray arm (3) being connected with the spray arm mount (322) by means of the cartridge (33).

5. The dishwasher according to claim 4, wherein the spray arm mounting seat (322) is provided with a clamping hole (3221), the clamping seat (33) is provided with a clamping block (330) matched with the clamping hole (3221), and the spray arm mounting seat (322) is further provided with a water outlet (3220).

6. The dishwasher of claim 5, characterized in that the chucking holes (3221) of the spray arm mounting seat (322) and the water outlet (3220) of the spray arm mounting seat (322) are alternately arranged.

7. The dishwasher of claim 2, further comprising a catch seat (7), the buckling seat (7) comprises a main body (72) and a base (70), the main body (72) is arranged on the base (70), the main body (72) is annular, a water outlet hole (78) is arranged on the main body (72) of the buckling seat (7), the water outlet hole (78) divides the main body (72) into an upper part (73) and a lower part (79), an annular extending part (325) is arranged along the axial direction of a water outlet (324) of the top water pipe (32), a projection (3250) is provided on the protrusion (325), the projection (3250) being in contact with an upper portion (73) of the body (72), and the lug (3250) forms a support for the upper part (73) of the body (72), the top spray arm (3) is arranged on the buckling seat (7) and is communicated with a water outlet hole (78) of the buckling seat (7).

8. The dishwasher of claim 7, characterized in that the body (72) is provided with a notch (74), a gap (75) is provided between a bottom surface of the notch (74) and an upper portion of the body (72), and a length of the gap (75) is greater than or equal to a length of the protrusion (3250).

9. The dishwasher of claim 8, wherein the protrusion (3250) is provided with an introduction portion (3251), the catching groove (74) is provided with an introduction groove (76), and the introduction portion (3251) is engaged with the introduction groove (76).

10. The dishwasher of claim 7, characterized in that a conical water guide table (77) is provided on the base (70).

11. The dishwasher of any one of claims 2 to 10, wherein the water inlet (321) of the top water pipe (32) is reversely flared, the water outlet (312) of the top spray water inlet pipe (31) is also flared, the water inlet (321) of the top water pipe (32) is inserted into the water outlet (312) of the top spray water inlet pipe (31), the water inlet (321) of the top water pipe (32) and the water outlet (312) of the top spray water inlet pipe (31) are sealed by a sealing ring (3210), and the sealing ring (3210) is disposed on the water inlet of the top water pipe (32) and/or the water outlet of the top spray water inlet pipe (31).

12. The dishwasher of any one claims 2 to 9, having a non-return valve in the water inlet (321) of said top water pipe (32) and a top-opening device cooperating with said non-return valve in the water outlet (312) of said top-spray water pipe (31).

13. The dishwasher of claim 12, wherein the check valve is a ball (340) and the liftoff device is a top post (314).

14. The dishwasher of claim 13, characterized in that a valve chamber (341) is provided at the water inlet (321) end of the top water pipe (32), the ball (340) is movable in the valve chamber (341), the bottom of the valve chamber (341) is a ball seat (342), a circular hole (343) is provided in the ball seat (342), the ball (340) is placed on the ball seat (342), and the diameter of the circular hole (343) is smaller than that of the ball (340).

15. The dishwasher of claim 14, characterized in that a water outlet (344) is provided at a side of the valve chamber (341), the width of the water outlet (344) of the valve chamber (341) is larger than the diameter of the ball (340) and the height is smaller than the diameter of the ball (340), or the width of the water outlet (344) of the valve chamber (341) is smaller than the diameter of the ball (340) and the height is larger than the diameter of the ball (340).

16. The dishwasher according to any one of claims 1 to 10, wherein a lower spray arm (41) with water spray holes is further provided on the bottom surface of the drawer (1), the water outlet of the circulating water pump (4) is connected with a water distribution structure (61), and the water inlet pipes of the top spray water inlet pipe (31) and the lower spray arm (41) are respectively communicated with the water distribution structure (61).

17. The dishwasher of any one of claims 1 to 8, characterized in that the bottom surface of the lid plate (2) is provided with a recessed area, the top spray arm (3) being fixed in the recessed area of the lid plate (2), the lowest point of the bottom surface of the lid plate (2) being equal to or lower than the lowest point of the top spray arm (3).