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CN-116172484-B - Spray head, spray arm and dish washer

CN116172484BCN 116172484 BCN116172484 BCN 116172484BCN-116172484-B

Abstract

The invention relates to the technical field of kitchen electricity, in particular to a spray head, a spray arm and a dish washer. The spray head is provided with a water outlet through hole, the side wall of the water outlet through hole is provided with an air inlet through hole, the air inlet through hole is provided with a first end and a second end, the first end is communicated with the water outlet through hole, the axis of the water outlet through hole and the included angle of the axis of the air inlet through hole are arranged at an included angle, and the second end is arranged close to the inlet of the water outlet through hole relative to the first end. According to venturi principle, shower nozzle outer wall pressure is higher, and gas can be under the drive of pressure differential, inhales into the play water through-hole from the inlet opening and enters into rivers. Thus, small bubbles are mixed in the water flow, and when the water flow brings the small bubbles into contact with the surface of the tableware, the bubbles can be broken, namely cavitation phenomenon, and larger impact force is generated, so that stains on the surface of the tableware can be cleaned better. The spray arm can clean stains on the surface of tableware better. The dishwasher can achieve a better cleaning effect on tableware.

Inventors

  • REN FUJIA
  • ZHANG KAIYUAN
  • HE XIAOFAN
  • MA TAO

Assignees

  • 杭州老板电器股份有限公司

Dates

Publication Date
20260512
Application Date
20230324

Claims (10)

  1. 1. The utility model provides a shower nozzle, its characterized in that has seted up water outlet (21) on it, air inlet (2221) have been seted up on the lateral wall of water outlet (21), air inlet (2221) have first end (22212) and second end (22211), first end (22212) with water outlet (21) are linked together, the axis of water outlet (21) with the contained angle of the axis of air inlet (2221) is the contained angle setting, second end (22211) is relative first end (22212) are close to the import setting of water outlet (21), by second end (22211) to first end (22212), the axis of air inlet (2221) is towards being close to the axis slope setting of water outlet (21), branch air inlet (2222) have still been seted up on the lateral wall of water outlet (21), the both ends of branch air inlet (2222) respectively with air inlet (2221) and outside air phase intercommunication.
  2. 2. The spray head according to claim 1, wherein the number of the air inlet through holes (2221) is at least two, at least two air inlet through holes (2221) are arranged at intervals along the flow direction of the fluid in the water outlet through holes (21), or at least two air inlet through holes (2221) are arranged at intervals along the circumferential direction of the water outlet through holes (21), or at least two air inlet through holes (2221) are uniformly distributed on the spray head.
  3. 3. The spray head according to claim 1, characterized in that the ratio of the diameter of the inlet through hole (2221) to the diameter of the outlet through hole (21) is 1/100-1/2.
  4. 4. The spray head according to claim 1, wherein the diameter of the air inlet through hole (2221) gradually decreases from the second end to the first end.
  5. 5. The spray head according to claim 1, wherein the number of the branched intake through holes (2222) is at least two, and at least two of the branched intake through holes (2222) are each in communication with the corresponding intake through hole (2221).
  6. 6. The nozzle according to any one of claims 1 to 5, wherein the nozzle is an elastic member, the aperture of the water outlet hole (21) is changed with the change of the water flow pressure in the nozzle arm cavity (11), and/or When the spray arm cavity (11) is not filled with the water flow, the cross-sectional area of the water outlet through hole (21) is gradually reduced along the flow direction of the water flow, and/or The water outlet through hole (21) comprises a diversion section (211) and a straight line section (212) which are sequentially connected along the flowing direction of the water flow, and the diversion section (211) is an arc transition surface.
  7. 7. Spray arm, comprising a spray arm body (1), characterized in that it comprises a spray head according to any one of claims 1-6, said spray head being arranged on said spray arm body (1).
  8. 8. Spray arm according to claim 7, characterized in that the spray arm body (1) comprises a wall surface (12), the spray head is mounted on the wall surface (12), the axis of the water outlet through hole (21) is arranged at an acute angle or at a right angle to the wall surface (12), and/or One of the spray arm body (1) and the spray head comprises a first limiting piece (13), the other one of the spray arm body and the spray head comprises at least two second limiting pieces (23), the first limiting piece (13) is matched with any one of the at least two second limiting pieces (23) so as to lead the spray head to be unique in direction when assembled on the spray arm body (1) and adjust the spraying direction of the spray head so as to lead the water flow sprayed by the spray head to be sprayed in a preset direction, and/or The spray arm body (1) comprises a first connecting piece (121), the spray head comprises a second connecting piece (22), and the first connecting piece (121) is detachably connected with the second connecting piece (22).
  9. 9. The spray arm according to claim 8, wherein the first connection member (121) and the second connection member (22) are connected by a clamping process.
  10. 10. A dishwasher, comprising a spray head according to any one of claims 1 to 6 or a spray arm according to any one of claims 7 to 9.

Description

Spray head, spray arm and dish washer Technical Field The invention relates to the technical field of kitchen electricity, in particular to a spray head, a spray arm and a dish washer. Background Dish washing machines are devices for automatically washing dishes such as bowls, chopsticks, plates, dishes, knives, forks and the like, and are widely used in restaurants, families and the like where various kinds of dishes are needed. With the improvement of living standard, dish-washing machines start to enter home life, and in order to improve the practicality and convenience of the dish-washing machines, dish-washing machines with various styles are generated. In the prior art, the spray arm is used for cleaning tableware in a spray arm rotary spraying mode, the spray arm comprises a spray arm body and a plurality of spray heads, the spray arm body is usually fixed with the spray heads, the spray arm body comprises a spray arm cavity, water outlet through holes communicated with the spray arm cavity are formed in the spray heads, circulation in the spray arm cavity is used for spraying outwards through the water outlet through holes, and the cleaning effect of the fluid sprayed by the existing spray arm is poor. Accordingly, there is a need to design a new spray head, spray arm and dishwasher to ameliorate the above problems. Disclosure of Invention A first object of the present invention is to provide a spray head, in which when a water stream contacts the surface of a dish with small bubbles, the bubbles are broken, i.e. cavitation, to generate a large impact force, thereby better cleaning stains on the surface of the dish. To achieve the purpose, the invention adopts the following technical scheme: The utility model provides a shower nozzle, has offered the water outlet on it, the air inlet has been offered on the lateral wall of water outlet, the air inlet has first end and second end, first end with water outlet is linked together, the axis of water outlet with the contained angle of air inlet's axis is the contained angle setting, the second end is relative first end is close to water outlet's import setting. Preferably, the number of the air inlet through holes is at least two, at least two air inlet through holes are distributed at intervals along the flowing direction of the fluid in the water outlet through holes, or at least two air inlet through holes are distributed at intervals along the circumferential direction of the water outlet through holes, or at least two air inlet through holes are uniformly distributed on the spray head. Preferably, the ratio of the diameter of the air inlet through hole to the diameter of the water outlet through hole is 1/100-1/2. Preferably, the diameter of the air inlet through hole gradually decreases from the second end to the first end. As a preferable scheme, the side wall of the water outlet through hole is also provided with a branch air inlet through hole, and two ends of the branch air inlet through hole are respectively communicated with the air inlet through hole and the external air. Preferably, the number of the branched air inlet through holes is at least two, and at least two branched air inlet through holes are communicated with the corresponding air inlet through holes. Preferably, the spray head is an elastic piece, the aperture of the water outlet through hole is changed along with the change of the water flow pressure in the spray arm cavity, and/or When the water flow is not introduced into the spray arm cavity, the cross section area of the water outlet through hole is gradually reduced along the flowing direction of the water flow, and/or The water outlet through hole comprises a diversion section and a straight line section which are sequentially connected along the flowing direction of the water flow, and the diversion section is an arc transition surface. The second object of the present invention is to provide a spray arm, in which when the water flow contacts the surface of the tableware with small bubbles, the bubbles are broken, that is, cavitation phenomenon, and a large impact force is generated, so that the stains on the surface of the tableware can be cleaned better. The spray arm comprises a spray arm body, and the spray head is arranged on the spray arm body. Preferably, the spray arm body comprises a wall surface, the spray head is mounted on the wall surface, and the axis of the water outlet through hole and the wall surface are arranged at an acute angle or a right angle. As a preferred scheme, one of the spray arm body and the spray head comprises a first limiting piece, the other one of the spray arm body and the spray head comprises at least two second limiting pieces, and the first limiting piece is matched with any second limiting piece to adjust the spray direction of the spray head. Preferably, the spray arm body comprises a first connecting piece, the spray head comprises a second connecting piece, and the first connect