CN217310202U

CN217310202U - Spraying arm of dish washing machine

Info

Publication number: CN217310202U
Application number: CN202220066579.1U
Authority: CN
Inventors: 陈旭; 张海波; 张猛; 黄安奎; 黄卫斌
Original assignee: Marssenger Kitchenware Co Ltd
Current assignee: Marssenger Kitchenware Co Ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-08-30
Anticipated expiration: 2032-01-11

Abstract

The utility model discloses a dish washer spray arm relates to kitchen electricity technical field, spray the arm piece including the first arm piece that sprays that is connected and second, the second sprays the central authorities of arm piece and is equipped with the body, the body is connected with first nut, antifriction bearing and for the axle split ring in order outward, the week side of body is equipped with the annular groove with axle split ring cooperation joint, antifriction bearing connects the body with first nut, the axle is with the split ring and is the metalwork, and the both ends that spray the arm are equipped with the exhalant canal towards central section, exhalant canal communicates in the arm pipeline. Has the following beneficial effects: the utility model discloses small in noise, wearing and tearing reduce, long service life, spray arm are difficult for droing to can wash the residue automatically, avoid influencing the washing effect of dish washer.

Description

Spraying arm of dish washing machine

Technical Field

The utility model relates to a kitchen electricity technical field, concretely relates to dish washer spray arm.

Background

The dish washer is used to automatically clean tableware such as dish, chopsticks, dish, knife and fork. The full-automatic dish washing machines on the market can be divided into two types of household and commercial, and the household full-automatic dish washing machines are only suitable for families and mainly comprise a cabinet type, a desk type, a water tank integrated type and an integrated type. The commercial dish-washing machine can be divided into five categories of cabinet type, cover type, basket transmission type, belt transmission type and ultrasonic wave according to the structure, thereby reducing the labor intensity of cooking personnel in restaurants, hotels and canteens of institutions, improving the working efficiency and promoting the cleanness and the sanitation.

The washing principle of the current spray type dish washing machine is as follows: the rivers of thoughtlessly having the detergent spout from trompil department on the spray arm after the pressurization, and the rivers that erupt are on the tableware, realize the current dish washer of washing to the tableware because through the pump to water pressurization back, follow the rivers water pressure increase of trompil department of spraying, and reaction force also can increase along with it, and the rotation rate of spray arm also can accelerate, leads to the friction aggravation, noise grow, the wearing and tearing aggravation of spray arm, and life shortens.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

To the technical problem that current dish washer high pressure spray arm noise is big, wearing and tearing are serious, life is short, the utility model provides a dish washer spray arm, its small in noise, wearing and tearing reduce, long service life.

2. Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does:

a spray arm of a dish washing machine comprises a first spray arm piece and a second spray arm piece which are connected, wherein a pipe body is arranged in the center of the second spray arm piece, and a first nut and a rolling bearing are sequentially connected outside the pipe body; the periphery of body is equipped with two at least first protruding muscle, first protruding muscle along the circumferencial direction of body evenly sets up, antifriction bearing's inner peripheral wall with first protruding muscle interference fit, the periphery wall of antifriction bearing's outer loop passes through at least the spacing setting of first nut.

Optionally, the first nut is provided with at least two second protruding ribs inside, the second protruding ribs are uniformly arranged along the circumferential direction of the first nut, and the second protruding ribs are in interference fit with the outer circumferential wall of the outer ring of the rolling bearing.

Optionally, the height of the inner ring of the rolling bearing is greater than the height of the outer ring of the rolling bearing.

Optionally, the spraying arm of the dishwasher further comprises a split retainer ring for the shaft, an annular groove matched and clamped with the split retainer ring for the shaft is formed in the outer peripheral side of the pipe body, the split retainer ring for the shaft is a metal piece, and the split retainer ring for the shaft is abutted to the inner ring of the rolling bearing.

Optionally, the spray arm of the dishwasher further comprises a spray arm seat, the first nut is sleeved on the periphery of the spray arm seat, the spray arm seat is in threaded connection with the first nut, the spray arm seat is provided with a circulation channel, the circulation channel is communicated with the channel of the pipe body, the outer peripheral side wall corresponding to the opening of the circulation channel is an inclined plane, the inner peripheral side wall corresponding to the opening of the pipe body is an inclined plane, and at least part of the inner peripheral side wall corresponding to the opening of the pipe body is sleeved on the outer peripheral side wall corresponding to the opening of the circulation channel.

Optionally, the spraying arm of the dishwasher further comprises a second nut, the second nut is located below the first nut, and the second nut is sleeved on the periphery of the spraying arm seat.

Optionally, an annular sealing gasket is arranged between the second nut and the spray arm seat.

Optionally, the outer periphery of the first nut is provided with uniformly distributed bulges or the outer periphery of the first nut is provided with a knurled structure.

Optionally, a cavity is formed between the first spraying arm piece and the second spraying arm piece, water outlet channels are arranged at two ends of the second spraying arm piece and communicated with the cavity, the water outlet channels are obliquely arranged, and the outlet direction of the water outlet channels faces towards the pipe body.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

in the technical scheme provided by the utility model, a pipe body is arranged in the center of the second spray arm piece, and a first nut and a rolling bearing are sequentially connected outside the pipe body; the periphery of the pipe body is provided with at least two first protruding ribs, the inner peripheral wall of the inner ring of the rolling bearing is in interference fit with the first protruding ribs, and the outer peripheral wall of the outer ring of the rolling bearing is at least limited by the first nuts, so that the friction coefficient of the second spray arm piece during rotation is reduced by the rolling bearing, the abrasion of the pipe body is reduced, the noise is reduced, and the service life of the spray arm is prolonged; meanwhile, the periphery of the tube body is provided with at least two first protruding ribs, the inner peripheral wall of the inner ring of the rolling bearing is in interference fit with the first protruding ribs, and therefore the contact area between the rolling bearing and the tube body is reduced, the pressure between the rolling bearing and the tube body is increased, friction force is increased simultaneously, and the rolling bearing and the tube body are connected more firmly and reliably.

Drawings

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

Fig. 2 is a cross-sectional view of a spraying arm of a dishwasher according to an embodiment of the present invention.

Fig. 3 is a partial cross-sectional view of a water outlet channel of a spraying arm of a dishwasher according to an embodiment of the present invention.

Fig. 4 is a partial cross-sectional view of a structure at a spray arm seat of a spray arm of a dishwasher according to an embodiment of the present invention.

Fig. 5 is a schematic partial structural view of a pipe body of a spray arm of a dishwasher according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a first nut of a spraying arm of a dishwasher according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of a split retaining ring for a shaft of a spraying arm of a dishwasher according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a rolling bearing of a spraying arm of a dishwasher according to an embodiment of the present invention.

1. A first spray arm sheet; 2. a spray arm gasket; 3. a second spray arm sheet; 4. a first nut; 5. a rolling bearing; 51. a bearing inner race; 52. a bearing outer race; 6. a split washer for a shaft; 7. a second nut; 8. an annular seal; 9. a spray arm base; 10. a water outlet channel; 11. a wedge-shaped connection structure; 12. a first raised rib; 13. an annular groove; 14. a second raised rib; 15. a tube body.

Detailed Description

For a further understanding of the present invention, reference will be made to the drawings and examples for a detailed description of the invention.

The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.

Examples

With reference to the attached drawings 1-8, the spray arm of the dish washing machine comprises a first spray arm piece 1 and a second spray arm piece 3 which are connected, wherein the center of the second spray arm piece 3 is provided with a pipe body 15, and a first nut 4 and a rolling bearing 5 are sequentially connected outside the pipe body 15; the periphery of body 15 is equipped with two at least first protruding muscle 12, first protruding muscle 12 along the circumferencial direction of body 15 evenly sets up, antifriction bearing 5's inner circumferential wall with 12 interference fit of first protruding muscle, the periphery wall of antifriction bearing 5's outer loop passes through at least the spacing setting of first nut 4. The inside of first nut 4 is equipped with two at least protruding muscle of second 14, the protruding muscle of second 14 along the circumferencial direction of first nut 4 evenly sets up, the protruding muscle of second 14 with the periphery wall interference fit of the outer loop of antifriction bearing 5. The periphery of the tube body 15 is provided with first raised ribs 12 which are uniformly arranged in an annular shape. And second protruding ribs 14 which are connected with the rolling bearing 5 and are uniformly arranged in an annular mode are arranged inside the first nut 4. The first protruding ribs 12 and the second protruding ribs 14 reduce the contact area, increase the pressure of the rolling bearing 5, the tube body 15 and the first nut 4, and increase the friction force, so that the structure of the rolling bearing 5 is firmer, and the relative sliding phenomenon between the bearing outer ring 52 and the first nut 4 can not occur when the rolling bearing 5 rotates.

As shown in fig. 8, the height that highly is greater than antifriction bearing 5's outer loop of antifriction bearing 5's inner ring, antifriction bearing 5's inner circle and the 6 butts of split ring for the axle, bearing inner circle 51 is usually bigger than the degree of wear with the outer lane, and life is shorter, causes whole bearing inefficacy very easily, the utility model discloses in increased bearing inner circle 51 height, made bearing inner circle 51 more wear-resisting, prolonged the life of whole bearing.

The spraying arm of the dishwasher further comprises a split retainer ring 6 for the shaft, an annular groove 13 which is clamped with the split retainer ring 6 for the shaft in a matched mode is formed in the periphery side of the pipe body 15, the split retainer ring 6 for the shaft is a metal piece, and the split retainer ring 6 for the shaft is abutted to the inner ring of the rolling bearing 5.

The spray arm of the dish-washing machine further comprises a spray arm seat 9, the first nut 4 is sleeved on the periphery of the spray arm seat 9, the spray arm seat 9 is in threaded connection with the first nut 4, the spray arm seat 9 is provided with a circulation channel, the circulation channel is communicated with the channel of the pipe body 15, the outer peripheral side wall corresponding to the opening of the circulation channel is an inclined plane, the inner peripheral side wall corresponding to the opening of the pipe body 15 is an inclined plane, and at least part of the inner peripheral side wall corresponding to the opening of the pipe body 15 is sleeved on the outer peripheral side wall corresponding to the opening of the circulation channel.

The spraying arm of the dishwasher further comprises a second nut 7, the second nut 7 is positioned below the first nut 4, and the second nut 7 is sleeved on the periphery of the spraying arm seat 9. An annular sealing gasket 8 is arranged between the second nut 7 and the spraying arm seat 9 and used for improving the sealing effect and reducing the pressure loss of water flow.

The periphery of first nut 4 is equipped with evenly distributed's arch or the periphery of first nut 4 is equipped with the annular knurl structure for the antiskid. The second nut 7 is polygonal and is used for conveniently screwing the second nut 7.

A cavity is arranged between the first spraying arm piece 1 and the second spraying arm piece 3, water outlet channels 10 are arranged at two ends of the second spraying arm piece 3, the water outlet channels 10 are communicated with the cavity, the water outlet channels 10 are obliquely arranged, and the outlet direction of the water outlet channels 10 faces the pipe body 15. The first nut 4, the second nut 7 and the spraying arm seat 9 are connected into a whole through threads, and water flow enters the spraying arm from the bottom of the spraying arm seat 9. The first nut 4 is connected with a second nut 7 in an abutting mode, and the first nut 4 and the second nut 7 are connected with a spraying arm seat 9 in a threaded mode. The spray arm seat 9 is abutted to the pipe body 15 through the wedge-shaped connecting structure 11, abutting surfaces of the spray arm seat 9 and the pipe body 15 are inclined planes, directions of the inclined planes are shown in fig. 4, water flows into the bottom of the spray arm seat 9, and because the flowing direction of the water is consistent with the reducing direction of the inclined planes, pressure loss of the water flow at the connecting position is reduced.

The dish washer spray arm sprays the arm piece 3 including the first arm piece 1 and the second that are connected that sprays, the second sprays the central authorities of arm piece 3 and is equipped with body 15, body 15 is connected with first nut 4, antifriction bearing 5 and epaxial split ring 6 in order outward, all sides of body 15 are equipped with the annular groove 13 with the 6 cooperation joints of epaxial split ring, antifriction bearing 5 is connected body 15 with first nut 4, epaxial split ring 6 is the metalwork, and the both ends that spray the arm are equipped with the exhalant canal 10 towards the central authorities section, exhalant canal 10 communicates in the arm interior pipeline. Can the blowout water after the heating in the spray arm among the current dish washer, improve dish washer's washing effect, because high temperature can make the spray arm take place deformation, the stability of being connected between high pressure spray arm and the antifriction bearing 5 can be influenced, can lead to antifriction bearing 5 to drop when serious. In order to prevent the rolling bearing 5 from falling off and improve the connection stability between the high-pressure spray arm and the rolling bearing 5, the annular groove 13 is arranged on the lower sheet of the high-pressure spray arm, the rolling bearing 5 is clamped on the high-pressure spray arm by utilizing the split retainer ring 6 for the shaft, and the split retainer ring 6 for the shaft is a metal piece, so that the rolling bearing 5 is small in thermal deformation and reliable in connection, and can be effectively prevented from falling off from the high-pressure spray arm. The spraying blind area can appear on the lower surface of the spraying arm of the existing dish-washing machine, and the water flow can not wash the area below the spraying arm, so the residues of food on the tableware can be accumulated below the spraying arm, and the residues can be thrown onto the tableware along with the rotation of the spraying arm, thereby affecting the washing effect of the dish-washing machine. In order to better clean food residues below a high-pressure spray arm of the dish washing machine, a water outlet channel 10 is arranged below the high-pressure spray arm, water flow is sprayed out from the water outlet channel 10, the food residues on the high-pressure spray arm can be directly washed away, and the washing effect of the dish washing machine is ensured.

First spray be equipped with a plurality of holes that spray on the arm piece 1, first spray the arm piece 1 with the second sprays and accompany between the arm piece 3 and spray the sealed pad 2 of arm, first spray arm piece 1 and second spray arm piece 3 and close the back inside have the pipeline that is used for leading to water, and water can follow the hole blowout of spraying and wash the dishes after the spray arm operation gets up. The rotating part of the existing high-pressure spray arm is seriously worn, in order to reduce the wear, a rolling bearing 5 is arranged between the pipe body 15 and the first nut 4, and the rolling friction of the bearing is utilized to replace the original sliding friction, so that the friction coefficient between the high-pressure spray arm and the first nut 4 is greatly reduced, the noise during the operation of the high-pressure spray arm is reduced, the wear is reduced, and the service life of the high-pressure spray arm is prolonged.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A spray arm of a dish washing machine is characterized by comprising a first spray arm piece and a second spray arm piece which are connected, wherein the center of the second spray arm piece is provided with a pipe body, and a first nut and a rolling bearing are sequentially connected outside the pipe body; the periphery of body is equipped with two at least first protruding muscle, first protruding muscle along the circumferencial direction of body evenly sets up, antifriction bearing's inner peripheral wall with first protruding muscle interference fit, the periphery wall of antifriction bearing's outer loop passes through at least the spacing setting of first nut.

2. The spray arm of a dishwasher of claim 1, wherein the first nut is provided with at least two second raised ribs inside, the second raised ribs are uniformly arranged along the circumferential direction of the first nut, and the second raised ribs are in interference fit with the outer circumferential wall of the outer ring of the rolling bearing.

3. A dishwasher spray arm according to claim 1, wherein the height of the inner ring of the rolling bearing is greater than the height of the outer ring of the rolling bearing.

4. The spraying arm of the dishwasher of claim 3, further comprising a split retainer ring for the shaft, wherein an annular groove matched and clamped with the split retainer ring for the shaft is formed in the outer peripheral side of the pipe body, the split retainer ring for the shaft is a metal piece, and the split retainer ring for the shaft is abutted against the inner ring of the rolling bearing.

5. The spray arm of claim 1, further comprising a spray arm seat, wherein the first nut is disposed on an outer periphery of the spray arm seat, the spray arm seat is threadedly coupled to the first nut, the spray arm seat has a flow channel, the flow channel is communicated with the channel of the pipe body, an outer peripheral wall surface of the flow channel corresponding to the opening is inclined, an inner peripheral wall surface of the pipe body corresponding to the opening is inclined, and at least a portion of the inner peripheral wall surface of the pipe body corresponding to the opening is disposed on an outer peripheral wall surface of the flow channel corresponding to the opening.

6. The dishwasher spray arm of claim 5 further comprising a second nut positioned below the first nut, the second nut being positioned around the periphery of the spray arm base.

7. The dishwasher spray arm of claim 6 wherein an annular gasket is disposed between said second nut and said spray arm mount.

8. The dishwasher spray arm of claim 1 wherein the outer periphery of said first nut is provided with evenly distributed protrusions or the outer periphery of said first nut is provided with a knurled structure.

9. A dishwasher spray arm according to any one of claims 1 to 8, wherein: the first spraying arm piece and the second spraying arm piece are provided with a cavity, water outlet channels are arranged at two ends of the second spraying arm piece and communicated with the cavity, the water outlet channels are obliquely arranged, and the outlet direction of the water outlet channels faces towards the pipe body.