CN218247157U

CN218247157U - A nozzle, spray arm and cleaning machine for cleaning machine

Info

Publication number: CN218247157U
Application number: CN202221699085.3U
Authority: CN
Inventors: 姚永磊; 郑峰; 魏本柱; 刁硕; 韩健健; 潘嘉威
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-01-10
Anticipated expiration: 2032-06-30

Abstract

The utility model relates to a nozzle, spray arm and cleaning machine for cleaning machine, nozzle are including having the body that collects the liquid chamber, and the body bottom is opened and is formed water inlet, top and seal, and open at the body top has the spout of following hole for water spraying eccentric arrangement, the drainage cover that is close to the water inlet and arranges is put to the cover in the body, and this drainage cover is formed with the drainage channel that reduces gradually along rivers direction internal diameter, be formed with the negative pressure region that can produce the negative pressure under fluidic state in the outlet port department that is close to drainage channel in the body, the body is opened has the air inlet that supplies outside air to get into in the negative pressure region. When rivers pass through the guide pin bushing, because rivers velocity of flow sharply increases, can form the negative pressure region in guide pin bushing exit end, body inner chamber, this negative pressure region is through the air inlet with the air suction to erupt the cavitation water column that smugglies secretly the bubble, the cavitation water column hits and beats when treating the washing object surface, and the bubble breaks and can produce great power of peeling off to the pollutant in the twinkling of an eye, thereby improves the cleaning performance.

Description

A nozzle, spray arm and cleaning machine for cleaning machine

Technical Field

The utility model relates to a dish washer technical field specifically indicates a nozzle, spray arm and cleaning machine for cleaning machine.

Background

A dishwasher is generally provided with a spray arm for spraying water to wash dishes or vegetables. For example, chinese patent publication No. CN204813755U, entitled "spray arm seat of dishwasher", spray arm device of dishwasher and dishwasher "(application No. CN 201520531714.5), and chinese patent publication No. CN209932651U, entitled" spray arm of cleaning machine "(application No. CN201920258610. X) disclose corresponding spray arm structures.

For the spray arm with the structure, the water inlet is positioned on one side wall of the spray arm, and double water outlets are formed from the water inlet to two sides, the spray arm is driven to rotate by viscous force of water dispersed in the flow channel, and the other side wall of the spray arm is provided with the water spraying hole for spraying water columns. In the existing dish washing machine, after the structure of the dish rack is fixed, the positions of dishes on the dish rack are unchanged, and the water columns sprayed by the spraying arms are approximately linear (strip-shaped), so that the range of the sprayed water columns is limited, the surfaces of all tableware cannot be considered, dead angles exist in washing, and the washing effect is influenced. Meanwhile, for the dish washer with a rectangular washing cavity, a washing dead angle is easy to generate.

In order to solve the above problems, the applicant's prior patent "a spray arm and a cleaning machine for a cleaning machine" (patent No. ZL 202121476877. X) discloses a structure including a main body extending in a length direction, the bottom wall of the main body being provided with a water inlet, the main body having a water collecting chamber communicating with the water inlet and a flow passage extending from the water collecting chamber to both sides, the top wall of the main body being provided with water spray holes communicating with the flow passage, at least one of the water spray holes being provided with a nozzle capable of rotating with the water column, the nozzle being provided with a nozzle eccentrically disposed along the water spray holes. In the rotation process of the spray arm, the eccentrically arranged nozzle jets a conical water column with a small lower end and a large upper end along with the rotation of the nozzle, the coverage area of the water column per se is greatly improved compared with a linear water column, and along with the rotation of the spray arm per se, the conical water column can cover a larger cleaning area, so that the cleaning dead angle can be eliminated, and the cleaning effect is improved.

The structure is beneficial to reducing the cleaning dead angle, but the water column sprayed by the nozzle has partial energy loss, so that the cleaning degree is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is to prior art's current situation, thereby provides a nozzle for cleaning machine through improving the stripping force of injection water column to the pollutant and improving the cleaning performance.

The utility model discloses the second technical problem that will solve is to prior art's current situation, provides an application and has the spray arm of above-mentioned nozzle.

The utility model discloses the third technical problem that will solve is to prior art's current situation, provides an use the cleaning machine that has above-mentioned spray arm.

The utility model provides a technical scheme that at least one above-mentioned technical problem adopted does:

a nozzle for a cleaning machine, which is used for being rotationally connected with a water spraying hole of a water spraying component, comprises a body with a liquid collecting cavity, wherein the bottom of the body is open to form a water inlet, the top of the body is closed, a nozzle which is eccentrically arranged along the water spraying hole is arranged on the top of the body, a drainage sleeve which is arranged close to the water inlet is sleeved in the body, a drainage channel with the inner diameter gradually reduced along the water flow direction is formed in the drainage sleeve, a negative pressure area which can generate negative pressure under the jet state is formed in the body close to the outlet end of the drainage channel, and an air inlet for allowing outside air to enter the negative pressure area is formed in the body.

Preferably, the drainage sleeve comprises a first part and a second part which are sequentially connected from bottom to top, the first part is shaped, the upper edge of the first part abuts against the lower end face of the body, the lower end of the second part is connected with the inner edge of the first part, and the second part is in a conical sleeve structure. Adopt above-mentioned structure, utilize the first portion to block the water of body water inlet department, utilize the second portion to gather the flow to the water of water inlet department, rivers are behind the drainage channel that contracts gradually, according to the venturi effect, can form the negative pressure region in drainage cover export, body inner chamber to inhale gas.

Preferably, a hollow air cavity is arranged in the side wall of the body, the air inlet is formed in the top wall of the body and communicated with the air cavity, and an air outlet arranged close to the first part of the drainage sleeve is formed in the bottom of the air cavity. The air outlet is arranged corresponding to the first part because the water pressure at the first part is low, and water cannot be pressed into the air cavity from the air outlet.

Preferably, the air cavity is arranged along the circumferential direction of the nozzle, the body part on the inner side of the air cavity forms a vertically extending sleeve body, the lower end of the sleeve body is arranged higher than the bottom wall of the body, a first gap is formed between the inner edge of the lower end of the sleeve body and the outer peripheral wall of the second part, and a flow guide structure capable of guiding air from the first gap to the negative pressure region is formed between the lower end of the sleeve body and the upper surface of the first part and between the lower end of the sleeve body and the outer peripheral wall of the second part. By adopting the structure, the air suction effect is favorably enhanced, and the larger air suction amount is kept, so that the bubble content in the cavitation water column is increased, and the cleaning effect is improved.

In the invention, the cross section of the body is shaped into an inverted U-shaped structure, the closed end of the U-shaped structure is shaped into an arc-shaped top wall which is arched upwards, and the spout is opened on the arc-shaped top wall and is arranged close to one side of the arc-shaped top wall.

Preferably, the flow guiding sleeve further comprises a third portion connected to the second portion, the third portion is also in a conical sleeve structure and the axis of the third portion is intersected with the axis of the second portion, and the upper port of the third portion is arranged corresponding to the nozzle. The nozzle is offset at the top of the body, the water inlet direction at the bottom of the body is from bottom to top, and the third part enables the water outlet end of the flow guide sleeve to be arranged corresponding to the nozzle on the basis of further increasing the distance and the water pressure of water, so that water flow can form jet flow smoothly, a negative pressure area is kept to have larger negative pressure and small disturbance, and the air suction effect is further improved.

Further preferably, the third portion is inclined from bottom to top toward the spout, and an upper port of the third portion is concentrically arranged with the spout. The structure is beneficial to further improving the jet flow and air entrainment effects.

Preferably, the height of the third part is gradually reduced from the first side edge to the second side edge opposite to the first side edge, and the junction of the third part and the second part is in smooth transition connection. The structure is beneficial to reducing the capacity loss of water flow and keeping higher jet pressure and jet lift.

Preferably, the body is provided with a positioning column vertically extending below the body, and correspondingly, the inner bottom wall of the water spraying part is provided with a socket for the positioning column to insert and rotatably match with. This structure is convenient for carry on spacingly from the axis of rotation to the body, improves its rotation on the one hand and smoothly reaches stability, and on the other hand keeps the interval between bottom wall in blade and the spray arm, avoids interfering.

Preferably, the upper end of the positioning column is connected with the inner top wall of the body and is arranged close to the top edge of the nozzle, and the positioning column penetrates through the drainage sleeve and extends downwards. By adopting the structure, the positioning column can also play a role in drainage.

A spray arm comprises a flow channel and a water spray hole communicated with the flow channel, and further comprises the spray nozzle, the spray nozzle can rotatably penetrate through the water spray hole to be arranged, and the spray nozzle is located above the water spray hole.

Preferably, a gear capable of rotating under the impact of water flow is arranged in the flow channel, and a gear ring arranged along the circumferential direction is arranged on the outer circumferential wall of the body and is in meshing transmission with the gear.

Preferably, the flow passage is provided with a secondary flow passage capable of surrounding a water jet hole for installing the nozzle therein for accelerating the water flow, and the gear is arranged near an inlet of the secondary flow passage. This accessory channel can accelerate rivers, and the entry corresponds the gear arrangement moreover, and drive gear that can be better rotates, and then drives the nozzle and rotate with reliable and stable higher rotational speed to keep rivers to have higher injection lift.

Preferably, a throat portion capable of accelerating the water flow entering the secondary flow passage is formed at an inlet of the secondary flow passage, a water inlet flow passage is connected in front of the throat portion, and the gear is arranged corresponding to an inner port of the water inlet flow passage. The outer edge of the gear and the water inlet direction of the water inlet flow passage are tangentially arranged, so that the driving effect on the rotation of the gear is improved.

The cleaning machine comprises a box body, a water pumping mechanism and the spraying arm, wherein the spraying arm can be rotatably arranged in the box body, and the water pumping mechanism is used for pumping water at the bottom of the box body into the spraying arm.

Compared with the prior art, the utility model has the advantages of: the utility model discloses set up the drainage cover that is close to the water inlet and arranges in the body, when rivers pass through the drainage cover, because the velocity of flow sharply increases, can form the negative pressure region in drainage cover outlet end, body inner chamber, this negative pressure region is through the air inlet with the air suction to erupt the cavitation water column that smugglies secretly the bubble, when the cavitation water column is hit and is being waited to wash the object surface, the bubble breaks and can produce great peeling strength to the pollutant in the twinkling of an eye, thereby improves the cleaning performance.

Drawings

Fig. 1 is a schematic structural view of a spray arm according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural view of a nozzle according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3 from another angle;

fig. 5 is a schematic structural view of a drainage sleeve in an embodiment of the present invention;

fig. 6 is a schematic view of a partial structure of the spray arm according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 6, the nozzle of the present embodiment is used for being rotatably connected to a water spraying hole 13 of a water spraying member, the water spraying member of the present embodiment may be a spray arm 1, the interior of the spray arm 1 is hollow to form a flow channel 11, a lower side wall of the spray arm 1 is provided with a water inlet 12 communicated with the flow channel 11, and an upper side wall of the spray arm 1 is provided with a water spraying hole 13 communicated with the flow channel 11.

The nozzle of the embodiment comprises a body 2 with a liquid collecting cavity 21, wherein the bottom of the body 2 is opened to form a water inlet 22, the top of the body 2 is closed, and a nozzle 23 eccentrically arranged along the water spraying hole 13 is opened at the top of the body 2.

The cross section of the body 2 is shaped into an inverted U-shaped structure, the closed end of the U-shaped structure is shaped into an arc-shaped top wall 25 which is arched upwards, and the spout 23 is opened on the arc-shaped top wall 25 and is arranged close to one side of the arc-shaped top wall 25.

The drainage sleeve 3 arranged close to the water inlet 22 is sleeved in the body 2 of the embodiment, the drainage sleeve 3 is formed with a drainage channel 30 with an inner diameter gradually reduced along the water flow direction, a negative pressure area 300 capable of generating negative pressure in a jet state is formed in the body 2 close to the outlet end of the drainage channel 30, and the body 2 is provided with an air inlet 27 for external air to enter the negative pressure area 300.

The flow guide sleeve 3 comprises a first part 31, a second part 32 and a third part 33 which are sequentially connected from bottom to top, the first part 31 is annular, the upper edge of the first part abuts against the lower end face of the body 2, the lower end of the second part 32 is connected with the inner edge of the first part 31, and the second part 32 is in a conical sleeve structure. The first part 31 is used for blocking the water at the water inlet 22 of the body 2, the second part 32 is used for gathering the water at the water inlet 22, and after the water flows through the gradually-contracted drainage channel 30, a negative pressure area 300 is formed in the outlet of the drainage sleeve 3 and the inner cavity of the body 2 according to the Venturi effect, so that air is sucked in. The third portion 33 is connected to the second portion 32, the third portion 33 is also in a conical sleeve structure and has an axis intersecting with the axis of the second portion 32, and the upper port of the third portion 33 is arranged corresponding to the nozzle 23. The third portion 33 is inclined from bottom to top toward the spout 23, and an upper port of the third portion 33 is concentrically arranged with the spout 23. Because the nozzle 23 is offset at the top of the body 2, and the water inlet direction at the bottom of the body 2 is from bottom to top, the third part 33 enables the water outlet end of the drainage sleeve 3 to be arranged corresponding to the nozzle 23 on the basis of further carrying out distance and increasing water pressure on water, so that water flow can form jet flow smoothly, a negative pressure area 300 is kept to have larger negative pressure and small disturbance, and the air suction effect is further improved.

A hollow air cavity 24 is arranged in the side wall of the body 2, an air inlet 27 is arranged on the top wall of the body 2 and communicated with the air cavity 24, and an air outlet 241 arranged close to the first part 31 of the drainage sleeve 3 is arranged at the bottom of the air cavity 24. The air outlet 241 is arranged corresponding to the first portion 31 because the water pressure at the first portion 31 is low and does not press water from the air outlet 241 into the air chamber 24.

The air chamber 24 is arranged along the circumferential direction of the nozzle, and the body 2 part at the inner side of the air chamber forms a vertically extending sleeve body 242, and the sleeve body 242 forms an open loop structure in the circumferential direction of the nozzle 2 and is disconnected at the position corresponding to the nozzle 23, so as to avoid interference on water flow flowing to the nozzle 23. The lower end of the sleeve 242 is higher than the bottom wall of the body 2, a first gap 243 is formed between the inner edge of the lower end of the sleeve 242 and the outer peripheral wall of the second portion 32, and the lower end of the sleeve 242, the upper surface of the first portion 31 and the outer peripheral wall of the second portion 32 jointly enclose a flow guide structure capable of guiding gas from the first gap 243 to the negative pressure region 300. By adopting the structure, the air suction effect is favorably enhanced, and the larger air suction amount is kept, so that the bubble content in the cavitation water column is increased, and the cleaning effect is improved.

In the present embodiment, the height of the third portion 33 gradually decreases from a first side edge to a second side edge opposite to the first side edge, and the junction between the third portion 33 and the second portion 32 is connected in a smooth transition manner. The structure is beneficial to reducing the capacity loss of water flow and keeping higher jet pressure and jet lift.

The body 2 is provided with a positioning column 26 vertically extending below the body 2, and correspondingly, the inner bottom wall of the spray arm 1 is provided with a socket 15 for the positioning column 26 to be inserted and rotatably matched with. This structure is convenient for carry on spacingly from the axis of rotation to body 2, improves its rotation and smoothly reaches stability. The upper end of the positioning post 26 is connected with the inner top wall of the body 2 and is arranged near the top edge of the spout 23, and the positioning post 26 extends downwards through the drainage sleeve 3. With this structure, the positioning column 26 can also perform a drainage function.

The spray arm 1 of the present embodiment includes a flow channel 11 and a water spraying hole 13 communicating with the flow channel 11, and further includes the above-mentioned nozzle, the nozzle can be rotatably disposed through the water spraying hole 13, and the nozzle 23 is located above the water spraying hole 13.

In the present embodiment, the flow channel 11 is provided with a gear 4 capable of rotating under the impact of water flow, and the outer peripheral wall of the body 2 is provided with a gear ring 20 arranged along the circumferential direction, and the gear ring 20 is in mesh transmission with the gear 4. The nozzle in this embodiment is driven by the gear 4, but of course, the nozzle may also be directly rotated and restrained at the top wall of the spray arm, and the jet flow of the deflection nozzle 23 drives the nozzle to rotate.

The runner 11 of the present embodiment extends in the longitudinal direction of the shower arm 1, and the spout hole 13 for mounting the body 2 is disposed near the end of the runner 11. The runner 11 is provided with a sub-runner 14 for accelerating the water flow so as to surround a water jet hole 13 for mounting the body 2 therein, and the gear 4 is disposed near an inlet 141 of the sub-runner 14. This side runner 14 can accelerate rivers, and entry 141 arranges corresponding gear 4 moreover, and drive gear 4 that can be better rotates, and then drives body 2 and rotate with reliable and stable higher rotational speed to keep rivers to have higher injection lift.

A throat portion 142 capable of accelerating the flow of water entering the sub flow path 14 is formed at the inlet 141 of the sub flow path 14, a water inlet flow path 143 is connected to the front of the throat portion 142, and the gear 4 is disposed corresponding to the inner port of the water inlet flow path 143. The outer edge of the gear 4 is arranged tangentially to the incoming water direction of the water inlet flow passage 143, thereby improving the driving effect on the rotation of the gear 4.

The cleaning machine of this embodiment includes box and pump water mechanism (not shown in the figure), still includes above-mentioned spray arm, and spray arm can locate in the box with rotating, and pump water mechanism is arranged in to spray arm with the water pump of bottom half.

This embodiment has set up rotatable body 2 on the hole for water spraying 13 of spray arm 1, it has spout 23 along hole for water spraying 13 eccentric arrangement to open on this body 2, at the arm for spray 1 rotation in-process, spout 23 rotates along with body 2 and erupts the toper water column that the lower extreme is little, the upper end is big, such water column covers the face and improves greatly than straight line formula water column itself, and along with the arm for spray 1 itself rotates, this toper water column can cover bigger washing area, be favorable to eliminating and wash the dead angle, improve the cleaning performance. In the embodiment, the drainage sleeve 3 which is arranged close to the water inlet 22 is arranged in the body 2, when water flows through the drainage sleeve 3, because the flow velocity of the water is sharply increased, a negative pressure area 300 can be formed at the outlet end of the drainage sleeve 3 and in the inner cavity of the body 2, the negative pressure area 300 sucks air through the air inlet, so that a cavitation water column with bubbles is ejected, and when the cavitation water column strikes the surface of an object to be cleaned, the bubbles can generate a larger stripping force to pollutants at the moment of breaking, so that the cleaning effect is improved.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Claims

1. A nozzle for a washing machine, for the rotary connection with the water jet (13) of a water jet member, comprising a body (2) with a collecting chamber (21), the bottom of the body (2) being open to form a water inlet (22), the top of the body (2) being closed, the top of the body (2) being provided with nozzles (23) arranged eccentrically along the water jet (13), characterized in that: the drainage sleeve (3) which is arranged close to the water inlet (22) is sleeved in the body (2), the drainage channel (30) with the inner diameter gradually reduced along the water flow direction is formed in the drainage sleeve (3), a negative pressure area (300) capable of generating negative pressure in a jet state is formed at the outlet end close to the drainage channel (30) in the body (2), and an air inlet (27) for outside air to enter the negative pressure area (300) is formed in the body (2).

2. The nozzle for a washing machine as claimed in claim 1, wherein: the drainage sleeve (3) comprises a first part (31) and a second part (32) which are sequentially connected from bottom to top, the first part (31) is annular, the upper edge of the first part abuts against the lower end face of the body (2), the lower end of the second part (32) is connected with the inner edge of the first part (31), and the second part (32) is of a conical sleeve structure.

3. The nozzle for a washing machine as claimed in claim 2, characterized in that: a hollow air cavity (24) is arranged in the side wall of the body (2), the air inlet (27) is arranged on the top wall of the body (2) and communicated with the air cavity (24), and an air outlet (241) which is arranged close to the first part (31) of the drainage sleeve (3) is arranged at the bottom of the air cavity (24).

4. The nozzle for a washing machine as claimed in claim 3, characterized in that: the air cavity (24) is arranged along the circumferential direction of the nozzle, the body (2) on the inner side of the air cavity forms a vertically extending sleeve body (242), the lower end of the sleeve body (242) is higher than the bottom wall of the body (2) to be arranged, a first gap (243) is formed between the inner edge of the lower end of the sleeve body (242) and the outer peripheral wall of the second part (32), and a flow guide structure capable of guiding air from the first gap (243) to the negative pressure area (300) is formed by enclosing the lower end of the sleeve body (242), the upper surface of the first part (31) and the outer peripheral wall of the second part (32) together.

5. A nozzle for a washing machine as claimed in claim 2, characterized in that: the cross section of the body (2) is shaped into an inverted U-shaped structure, the closed end of the U-shaped structure is shaped into an arc top wall (25) which is arched upwards, and the spray nozzle (23) is arranged on the arc top wall (25) and close to one side of the arc top wall (25).

6. The nozzle for a washing machine as claimed in claim 5, characterized in that: the flow guide sleeve (3) further comprises a third part (33) connected to the second part (32), the third part (33) is also in a conical sleeve structure, the axis of the third part is intersected with the axis of the second part (32), and the upper port of the third part (33) is arranged corresponding to the nozzle (23).

7. The nozzle for a washing machine as claimed in claim 6, characterized in that: the third part (33) is gradually inclined towards the direction of the nozzle (23) from bottom to top, and the upper port of the third part (33) is concentrically arranged with the nozzle (23).

8. The nozzle for a washing machine as claimed in claim 7, wherein: the third part (33) is gradually reduced in height from a first side edge to a second side edge opposite to the first side edge, and the third part (33) is connected with the joint of the second part (32) in a smooth transition mode.

9. The nozzle for a washing machine as claimed in any one of claims 1 to 8, characterized in that: the body (2) is internally provided with a positioning column (26) vertically extending below the body (2), and correspondingly, the inner bottom wall of the water spraying part is provided with a socket (15) for the positioning column (26) to insert and rotatably match with the positioning column (26).

10. The nozzle for a washing machine as claimed in claim 9, characterized in that: the upper end of the positioning column (26) is connected with the inner top wall of the body (2) and is arranged close to the top edge of the nozzle (23), and the positioning column (26) penetrates through the drainage sleeve (3) and extends downwards.

11. The utility model provides a spray arm, includes runner (11) and hole for water spraying (13) that are linked together with this runner (11), its characterized in that: a nozzle according to any one of claims 1 to 10, rotatably arranged through the water jet (13), the nozzle orifice (23) being located above the water jet (13).

12. The spray arm of claim 11, wherein: the water flow channel (11) is internally provided with a gear (4) capable of rotating under water flow impact, the peripheral wall of the body (2) is provided with a gear ring (20) arranged along the circumferential direction, and the gear ring (20) is in meshing transmission with the gear (4).

13. The spray arm of claim 12, wherein: the runner (11) is provided with a secondary runner (14) which can surround a water spraying hole (13) for installing the body (2) and is used for accelerating water flow, and the gear (4) is arranged close to an inlet (141) of the secondary runner.

14. The spray arm of claim 13, wherein: a throat part (142) capable of accelerating water flow entering the auxiliary runner (14) is formed at the inlet (141) of the auxiliary runner (14), a water inlet runner (143) is connected in front of the throat part (142), and the gear (4) is arranged corresponding to the inner port of the water inlet runner (143).

15. The utility model provides a cleaning machine, includes box and pump water mechanism, its characterized in that: the spray arm of any one of claims 11 to 14, wherein the spray arm is rotatably arranged in the box body, and the water pumping mechanism is used for pumping water at the bottom of the box body into the spray arm.