CN102370450A - Rotating spray arm for dish-washing machine - Google Patents
Rotating spray arm for dish-washing machine Download PDFInfo
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- CN102370450A CN102370450A CN2011103059342A CN201110305934A CN102370450A CN 102370450 A CN102370450 A CN 102370450A CN 2011103059342 A CN2011103059342 A CN 2011103059342A CN 201110305934 A CN201110305934 A CN 201110305934A CN 102370450 A CN102370450 A CN 102370450A
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Abstract
The invention discloses a rotating spray arm for a dish-washing machine, which is structurally characterized in that: a lid is provided with a plurality of tapered nozzles, and the side face of the lower part of each tapered nozzle is provided with a plurality of small holes; the lid is fixed on a water tank; the underside of the water tank is connected with a water feed pipe; the lower end of the water feed pipe is connected with a hollow rotating shaft; a water inlet pipe is inserted into a water sealing ring on the inner side of the lower end of the hollow rotating shaft; the upper section of the water inlet pipe is provided with a flange; the hollow rotating shaft is wrapped with a copper bearing bush, and a bearing bracket is fixed on the flange; an air inlet pipe extends to the inside of the water inlet pipe; the sharp part of each tapered nozzle is connected with a capillary air pipe, and the other end of the capillary air pipe is connected to the outside of an air feed pipe; the air feed pipe is fixed on the underside of the lid; and the lower inside of the air feed pipe is provided with an air sealing ring, an outlet of the water inlet pipe is provided with a supporting frame, and the upper section of the air inlet pipe is inserted into the air sealing ring after stretching out from a central hole of the supporting frame. When in use, the air in the air inlet pipe is sprayed out from the sharp parts of the tapered nozzles through the air feed pipe and the capillary air pipes so as to form air bubbles; and the water in the water inlet pipe enters the tapered nozzles through the water feed pipe and a water entering tank and then is sprayed out with the air bubbles in the tapered nozzles so as to form atomized water for washing dishes.
Description
Technical field:
The present invention relates to a kind of rotation spray arm of dish-washing machine.
Background technology:
Sold is crossed the fountain dish-washing machine on the household electrical appliances supermarket; Because the nozzle ejection of rotation spray arm is the straight line water column; Impulsive force is not enough, and revolving force is less, and the sealing ring of rotation spray arm have to be with the less nylon cushion of frictional force, leak easily and reduce the hydraulic pressure of the water outlet of nozzle; Therefore, the clean efficient of this dish-washing machine is very low, does not wash clean tableware, from the household electrical appliances supermarket, disappears, but can also buy this kind dish-washing machine on the internet.Patent of invention ZL200610080056.8 " a kind of cleaning unit of dish washer " stretches into compressed-air actuated escape pipe on the top of rotation spray arm; The compressed air of ejection forms a large amount of bubbles in spray arm; These bubbles are with the nozzle ejection formation spray water flushing tableware of water from the rotation spray arm; Simultaneously the spray arm revolving force strengthens, the faster rotational speed of spray arm, and the sealing ring of rotation spray arm also can be selected the big but rubber seal of good sealing effect of frictional force for use; In a word, improved the clean efficient of dish-washing machine greatly.This method derives from the cleaning machine that cleans automobile.But each the nozzle ejection spray water that the rotation spray arm in experiment, occurs is even inadequately, and spray water nearer from puff prot and the higher nozzle ejection of water inlet is stronger, otherwise relatively poor.Be originally that the cleaning machine that cleans automobile has only a nozzle, as long as the bubble in the water pipe is that the spray water that sprays in the nozzle uniformly is exactly uniform; And the rotation spray arm of dish-washing machine has a plurality of nozzles that are in same horizontal plane, the phenomenon that nozzle is fought for bubble will occur, causes the spray water of the ejection of rotating spray arm inhomogeneous.Patent of invention ZL200810126017.5 " a kind of Chinese style domestic bowl-washing with micro-air compressor " has used a lot of nozzles though use direct nozzle; So the uneven phenomenon of spray water of nozzle ejection also can occur.
Summary of the invention:
The present invention can overcome the uniform inadequately defective of spray water of each nozzle ejection of patent of invention ZL200610080056.8 " a kind of cleaning unit of dish washer ".
The present invention has increased the capillary trachea to conical nozzle on the basis of patent of invention ZL200610080056.8 " a kind of cleaning unit of dish washer ".
The rotation spray arm of dish-washing machine of the present invention comprises: lid, conical nozzle, tank, upper hose, waterstop ring, hollow rotating shaft, bearing block, cu bearing liner, water inlet pipe, flange and air inlet pipe.Many the opening conical nozzles obliquely that below lid, stretch out are housed on the lid; There are many apertures the side of the conical nozzle part below the lid.The lower edge of lid has a circle sealing gasket as the sealing between lid and the tank, with screw lid is fixed on the tank.Middle position is connected with upper hose below the tank.External diameter of the following connection of upper hose is greater than the hollow rotating shaft of upper hose, and there is the round mouth of contraction the hollow rotating shaft lower end, and waterstop ring is equipped with in the hollow rotating shaft inboard.The round mouth that shrink the lower end of hollow rotating shaft with water inlet pipe is suitable, in the contraction round mouth and waterstop ring of water inlet pipe insertion hollow rotating shaft lower end.The water inlet pipe epimere is equipped with flange, and there is the half slot of two symmetrical levels the flange side.Have two cu bearing liners that are semi arch to wrap on the hollow rotating shaft, the bearing block that two two ends are contraction-like semi arch wraps in the inside to cu bearing liner and hollow dress axle.The lower end contraction mouth of bearing block is pressed on the flange, and the last plane of flange contacts with the lower plane of hollow rotating shaft.Be fixed together with two semi arch bearing blocks of four key screws, two screws of its bottom bracket downside pass two horizontal half slots of flange, so bearing block is fixed on the flange.After bearing block was fixing, upper hose can rotate neatly but can not go here and there up and down; During the conical nozzle water spray, the revolving force of generation rotates lid, tank and upper hose together.Air inlet pipe stretches into from the below of water inlet pipe.The tip of each conical nozzle all is connected to a capillary trachea that caliber is identical, and the other end of every capillary trachea is all received the epimere side of tracheae.The middle position of the end face of last tracheae has a screw, and the middle position of lid has a circular hole; Between lid and the last tracheae round gasket is housed, the screw on the last tracheae is used nut screwing clamping after passing the circular hole on round gasket and the lid.Airtight seal is equipped with in inboard, last tracheae lower end, and a bracing frame is equipped with in the exit, upper end of water inlet pipe, and the epimere of air inlet pipe stretches out back the insertion the airtight seal of going up inboard, tracheae lower end from the centre bore of bracing frame.
Adopt the rotation spray arm of the dish-washing machine of this structure; During use: the compressed air that air compressor extrudes gets into air inlet pipe through the pneumoelectric magnet valve of energising; Get into through airtight seal from air inlet pipe again and go up tracheae; Get into capillary trachea from last tracheae, the tip from conical nozzle sprays, forms compressed-air actuated bubble at last.Extraction water gets into tank through the water solenoid valve of switching on from water inlet pipe process waterstop ring entering upper hose to water pump then from the pond, and the bubble in conical nozzle washes tableware from conical nozzle ejection, formation spray water a plurality of apertures entering conical nozzles of the conical nozzle below lid again.Since get into each conical nozzle water hydraulic pressure, the water yield and to get into compressed-air actuated air pressure, the tolerance of each conical nozzle all identical, so all be identical with intensity from the size of each strand spray water of conical nozzle ejection.The spray water that is to say the conical nozzle ejection of leaning on two ends leans on the spray water of the conical nozzle ejection at two ends to want big many than patent ZL200610080056.8 " a kind of cleaning unit of dish washer ", thus the turning effort power of rotation spray arm also big a lot, rotary speed is also fast a lot.In a word, use the cleaning efficiency of dish-washing machine of the present invention will improve a lot.
Description of drawings:
Below in conjunction with the description of drawings and the specific embodiment the present invention is done further specifically explanation at length.
Fig. 1 is a cut-away view of the present invention.
Fig. 2 is the schematic appearance of the parts of coupling part of the present invention.
Fig. 3 is the outward appearance enlarged diagram of conical nozzle of the present invention and the capillary trachea that connected.
The specific embodiment:
Fig. 1, Fig. 2, shown in Figure 3, the rotation spray arm of dish-washing machine of the present invention comprises: lid 1, conical nozzle 2, tank 3, upper hose 4, waterstop ring 5, hollow rotating shaft 6, bearing block 7, cu bearing liner 8, water inlet pipe 9, flange 10 and air inlet pipe 11.Many the opening conical nozzles 2 obliquely that below lid 1, stretch out are housed on the lid 1; There are many apertures the side of conical nozzle 2 parts below the lid 1.The lower edge of lid 1 has a circle sealing gasket as the sealing between lid 1 and the tank 3, with screw with lid 1 fixedly on the tank 3.Middle position is connected with upper hose 4 below the tank 3.External diameter of the following connection of upper hose 4 is greater than the hollow rotating shaft 6 of upper hose 4, and there is the round mouth of contraction hollow rotating shaft 6 lower ends, and waterstop ring 5 is equipped with in hollow rotating shaft 6 inboards.The round mouth that shrink the lower end of hollow rotating shaft 6 and water inlet pipe are 9 suitable, in the contraction round mouth and waterstop ring 5 of water inlet pipe 9 insertion hollow rotating shafts 6 lower ends.Water inlet pipe 9 epimeres are equipped with flange 10, and there is the half slot of two symmetrical levels flange 10 sides.There are two cu bearing liners 8 that are semi arch to wrap on the hollow rotating shaft 6, inside the bearing block 7 that two two ends are contraction-like semi arch wraps in cu bearing liner 8 and hollow dress axle 6.The lower end contraction mouth of bearing block 7 is pressed on the flange 10, and the last plane of flange 10 contacts with the lower plane of hollow rotating shaft 6.Be fixed together with two semi arch bearing blocks 7 of four key screws, two screws of its bottom bracket 7 downsides pass two horizontal half slots of flange 10, so bearing block 7 is fixed on the flange 10.After bearing block 7 was fixed, upper hose 4 can rotate neatly but can not go here and there up and down; During conical nozzle 2 water sprays, the revolving force of generation rotates lid 1, tank 3 and upper hose 4 together.Air inlet pipe 11 stretches into from the below of water inlet pipe 9.The tip of each conical nozzle 2 all is connected to a capillary trachea 15 that caliber is identical, and the other end of every capillary trachea 15 is all received the epimere side of tracheae 14.The middle position of the end face of last tracheae 14 has a screw, between lid 1 and the last tracheae 14 round gasket is housed, and the middle position of lid 1 has a circular hole; Screw on the last tracheae 14 is used nut screwing clamping after passing the circular hole on round gasket and the lid 1.Airtight seal 13 is equipped with in inboard, last tracheae 14 lower end, and a bracing frame 12 is equipped with in the exit, upper end of water inlet pipe 9, and the epimere of air inlet pipe 11 stretches out back the insertion the airtight seal 13 of going up inboard, tracheae 14 lower ends from the centre bore of bracing frame 12.Waterstop ring 5 gentle sealing rings 13 of the present invention can use hydrostatic seal circle or O-ring seals.For example: the waterstop ring 5 among Fig. 1 has adopted the hydrostatic seal circle, and O-ring seals has then been adopted in airtight seal 13.Pressure cooker has just adopted the hydrostatic seal circle.In order to make the spray water better effects if of conical nozzle 2 ejections, can let capillary trachea 15 spray into conical nozzle 2 bubbles becomes the pulse bubble.For example: on cabinet type double-deck dish-washing machine, install a two-bit triplet magnetic valve additional,, just have the pulse bubble in the conical nozzle 2 and occur as long as this two-bit triplet magnetic valve pulsation ground gets electric dead electricity again.
Adopt the rotation spray arm of the dish-washing machine of this structure; During use: the compressed air that air compressor extrudes gets into air inlet pipe 11 through the pneumoelectric magnet valve of energising; Get into through airtight seal 13 from air inlet pipe 11 again and go up tracheae 14; Get into capillary trachea 15 from last tracheae 14, the tip from conical nozzle 2 sprays, forms compressed-air actuated bubble at last.Extraction water gets into tank 3 through the water solenoid valve of switching on from water inlet pipe 9 process waterstop rings 5 entering upper hoses 4 to water pump then from the pond, and the bubble in conical nozzle 2 washes tableware from conical nozzle 2 ejections, formation spray water a plurality of apertures entering conical nozzles 2 of the conical nozzle below lid 12 again.Since get into each conical nozzle 2 water hydraulic pressure, the water yield and to get into compressed-air actuated air pressure, the tolerance of each conical nozzle 2 all identical, so all be identical with intensity from the size of the spray water of each conical nozzle 2 ejection.The spray water that is to say conical nozzle 2 ejections of leaning on the spray arm two ends leans on the spray water of conical nozzle 2 ejections at spray arm two ends to want big than patent ZL200610080056.8 " a kind of cleaning unit of dish washer " to many with strong many, thus the turning effort power of rotation spray arm also can be a lot of greatly, rotary speed also can be soon a lot.Adopted the conical nozzle 2 of pulse bubble, the spray water better effects if of ejection.In a word, use the cleaning efficiency of dish-washing machine of the present invention to want high a lot.
The mouth of conical nozzle 2 can be made the mouth of fold, spiral or other shapes in practical application.Also can on the mouth of conical nozzle 2, install fan blade additional, the spray water that has disperseed to spray.The cu bearing liner 8 of coupling part of rotation spray arm also can be made up of the semi arch copper material that two inboards are trapezoidal groove.Then make and suitable trapezoidal of cu bearing liner 8 inboard trapezoidal grooves in the outside of hollow rotating shaft 6.7 of bearing blocks can be the tapped nuts of an end.A location screw respectively is equipped with in the both sides of bearing block 7, and respectively there is a positioning pit in the outside of corresponding with it two cu bearing liners 8, so just can two cu bearing liners 8 be fixed on the bearing block 7.The internal thread of outside screw on the flange 10 and nut oblique crank Z bearing 7 is suitable, and nut oblique crank Z bearing 7 is screwed on the flange 10; During conical nozzle 2 water sprays, the frictional force that the spray arm rotation produces can only be to make nut oblique crank Z bearing 7 stubborn more tight more.Can certainly be fixed on cu bearing liner 8 on the port of bearing block 7 with microscler jump ring.
Claims (1)
1. the rotation spray arm of a dish-washing machine; Comprise: lid, conical nozzle, tank, upper hose, waterstop ring, hollow rotating shaft, bearing block, cu bearing liner, water inlet pipe, flange and air inlet pipe; Many opening conical nozzles obliquely that below lid, stretch out are housed on the lid, and there are many apertures the side of the taper water spout part below the lid, and the lower edge of lid has a circle sealing gasket as the sealing between lid and the tank; With screw with lid fixedly on the tank; Middle position is connected with upper hose below the tank, is the hollow rotating shaft of an external diameter greater than upper hose below the upper hose, and there is the contraction round mouth hollow rotating shaft lower end; Waterstop ring is equipped with in the hollow rotating shaft inboard; The round mouth that shrink the lower end of hollow rotating shaft is with water inlet pipe is suitable, water inlet pipe inserts in the contraction round mouth and waterstop ring of hollow rotating shaft lower end, and the individual epimere of water inlet is equipped with flange, and there is the half slot of two symmetrical levels the flange side; There are two cu bearing liners that are semi arch to wrap on the hollow rotating shaft; The bearing block that two two ends are contraction-like semi arch wraps in the inside to cu bearing liner and hollow dress axle; The following contraction mouth of bearing block is pressed on the flange, and the last plane of flange contacts with the lower plane of hollow rotating shaft, and is fixed together with two semi arch bearing blocks of four key screws; Two screws of its bottom bracket downside pass two horizontal half slots of flange, so bearing block is fixed on the flange; After bearing block was fixing, upper hose can rotate neatly but can not go here and there up and down, and during the conical nozzle water spray, the revolving force of generation rotates lid, tank and upper hose together; Air inlet pipe stretches into from the below of water inlet pipe; It is characterized in that: the tip of each said conical nozzle (2) all is connected to a capillary trachea (15); The other end of every capillary trachea (15) is all received the epimere side of tracheae (14); The middle position of the end face of last tracheae (14) has a screw; The middle position of said lid (1) has a circular hole; Between said lid (1) and the last tracheae (14) round gasket is housed, the screw on the last tracheae (14) is used nut screwing clamping after passing the circular hole on round gasket and the said lid (1), and airtight seal (13) is equipped with in last tracheae (14) inboard, lower end; A bracing frame (12) is equipped with in the exit, upper end of said water inlet pipe (9), and the epimere of said air inlet pipe (11) stretches out back the insertion the airtight seal (13) of going up inboard, tracheae (14) lower end from the centre bore of bracing frame (12).
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