CN115736769A - Automatic concertina type dish washer spray arm - Google Patents

Abstract

The invention discloses an automatic telescopic type spraying arm of a dish washing machine, which comprises a support and two telescopic arms, wherein two ends of the support are respectively provided with a fixed arm, one end of each telescopic arm is provided with a slideway port, the fixed arm is inserted in the slideway port, the fixed arm is in sliding fit with the telescopic arms, the outer side of each telescopic arm is provided with a first water spray hole, the support is rotationally connected with a main gear and two planetary gears, the two planetary gears are respectively meshed with two sides of the main gear, the center of the main gear is provided with a fixed sleeve, the fixed sleeve is fixedly connected with a preset spraying arm support, the fixed sleeve, the fixed arm and the telescopic arms are sequentially communicated, the positions of the planetary gears close to the edges are provided with fixed connecting rods, one ends of the telescopic arms close to the fixed arms are provided with fixed pin shafts, movable connecting rods are arranged between the fixed pin shafts and the fixed connecting rods, and two ends of the movable connecting rods are respectively rotationally connected with the fixed pin shafts and the fixed connecting rods. The invention can uniformly and fully spray water columns to the inner container of the dish-washing machine, thereby improving the cleaning efficiency and cleaning cleanliness.

Description

Automatic concertina type dish washer spray arm

Technical Field

The invention relates to a dish washing machine, in particular to an automatic telescopic spray arm of the dish washing machine.

Background

The spray arm of the dishwasher is installed in the inner container of the dishwasher, which is a mechanism capable of spraying water flow in the rotating process, and the related prior information refers to the Chinese patent publication with publication number CN 104783747A and name "spray arm for the dishwasher and dishwasher with the spray arm", wherein the publication describes:

"water in the water supply pipe 20 enters the main spray arm 101 through the first water inlet 1011, a part of the water entering the main spray arm 101 is sprayed onto the dishes through the first water inlet 1011, and another part of the water entering the main spray arm 101 enters the auxiliary spray arm 102 through the water outlet 1012 and the second water inlet 1023 in sequence. The water introduced into the sub spray arm 102 is sprayed to the dishes through the second water spray 1021 and the third water spray 1022 ".

Referring to fig. 2 and 3 of the specification of the publication, in such a mechanism, because the spray arm is a fixed member, and the inner container of the dishwasher is generally in a rectangular parallelepiped structure, the size of the spray arm should be smaller than the minimum width of the inner container of the dishwasher, and the water spray trajectory of the spray arm during rotation refers to fig. 16, because the water spray trajectory is circular, the tableware near the corner in the dishwasher is difficult to clean, so the cleaning efficiency is low, and the cleaning cleanliness is insufficient.

Disclosure of Invention

The invention aims to solve the technical problem of providing an automatic telescopic type dish washer spray arm which can uniformly and fully spray water columns to an inner container of a dish washer so as to improve the washing efficiency and the washing cleanliness.

In order to solve the technical problems, the invention adopts the following technical scheme.

The utility model provides an automatic concertina type dish washer spray arm, its is including support and two hollow flexible arms, the both ends of support are equipped with hollow fixed arm respectively, the slide way mouth has been seted up to the one end of flexible arm, the fixed arm is inserted and is located in the slide way mouth, just the fixed arm with flexible arm sliding fit, the outside of flexible arm is equipped with first hole for water spraying, the support internal rotation is connected with master gear and two planetary gear, two planetary gear mesh respectively in the both sides of master gear, the center department of master gear is formed with the fixed sleeving, fixed sleeving fixed connection is in the spray arm support of predetermineeing, the fixed sleeving the fixed arm with flexible arm communicates in proper order, planetary gear is close to the position at edge is equipped with the fixed connecting rod, flexible arm is close to the one end of fixed arm is equipped with the fixed pin axle, the fixed pin axle with be equipped with the movable connecting rod between the fixed connecting rod, just the both ends of movable connecting rod respectively with the fixed pin axle with the fixed connecting rod rotates to be connected, works as the support is relative when the master gear rotates, planetary gear passes through the movable connecting rod drives flexible arm moves.

Preferably, the ends of the two telescopic arms are respectively provided with inclined water spraying holes, and the inclined water spraying holes on the two telescopic arms are opposite in orientation.

Preferably, be formed with the drain pan on the support, master gear and two planetary gear all are located in the drain pan, be fixed with the apron on the drain pan, fixed sleeve passes apron and two normal running fit, seted up two on the apron and dodged the mouth, two dodge the mouth and align the setting with two planetary gear respectively, fixed connecting rod passes dodge the mouth.

Preferably, an inner sleeve communicated with the fixing arm is formed in the center of the bottom shell, and the fixing sleeve is sleeved outside the inner sleeve and is in running fit with the inner sleeve.

Preferably, two planetary shafts are arranged in the bottom shell, penetrate through the planetary gear and are in running fit with the planetary gear.

Preferably, a hollow boss is formed on the telescopic arm, and the first water spraying hole and the inclined water spraying hole are both arranged on the boss.

Preferably, the outer side of the fixing arm is provided with a second water spraying hole.

Preferably, a connecting pipe is formed on the spray arm support, and the fixing sleeve is sleeved on the connecting pipe and clamped with the connecting pipe.

Preferably, the outer side wall of the connecting pipe is provided with a limiting buckle, the inner side wall of the fixing sleeve is provided with a limiting clamping groove, and the limiting buckle is clamped in the limiting clamping groove.

Preferably, the gear ratio of the main gear to the planetary gears is 2:1.

In the automatic telescopic type spraying arm of the dish washing machine disclosed by the invention, the fixed sleeve at the central position of the main gear is fixed relative to the spraying arm support, so that the main gear drives the planetary gear to rotate in the rotation process of the spraying arm of the dish washing machine, the planetary gear drives the telescopic arm to perform telescopic motion relative to the fixed arm based on the transmission fit of the fixed connecting rod and the movable connecting rod, and water columns emitted by the first water spraying holes move along an elliptical track, so that the water columns are uniformly and fully sprayed to the inner container of the rectangular dish washing machine, the washing efficiency and the washing cleanliness of tableware are improved, and the application requirements are better met.

Drawings

FIG. 1 is a first perspective view of the spray arm of the dishwasher in an extended state;

FIG. 2 is a second perspective view of the spray arm of the dishwasher in an extended state in accordance with the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

FIG. 5 is an internal structural view of a spray arm of the dishwasher of the present invention;

FIG. 6 is a first exploded view of the spray arm of the dishwasher of the present invention;

FIG. 7 is a second exploded view of the spray arm of the dishwasher of the present invention;

FIG. 8 is a cross-sectional view of the spray arm of the dishwasher of the present invention in an extended state;

FIG. 9 is a block diagram of the spray arm support;

fig. 10 is a structural view of a main gear;

FIG. 11 is a first perspective view of a spray arm of the dishwasher in a retracted state in accordance with the present invention;

FIG. 12 is a second perspective view of a spray arm of the dishwasher in a retracted state according to the present invention;

FIG. 13 is a cross-sectional view of a spray arm of the dishwasher of the present invention in a retracted state;

FIG. 14 is a first diagram of the movement trace of the spray arm of the dishwasher spraying water column according to the present invention;

FIG. 15 is a second diagram of the movement trace of the spray arm of the dishwasher spraying water column according to the present invention;

fig. 16 is a diagram showing a movement trace of a spray arm of a conventional dish washer spraying water.

Detailed Description

The invention is described in more detail below with reference to the figures and examples.

The invention discloses an automatic telescopic type dish washer spray arm, which is shown by combining a drawing 1, a drawing 2, a drawing 5, a drawing 6 and a drawing 7, and comprises a support 1 and two hollow telescopic arms 2, wherein two ends of the support 1 are respectively provided with a hollow fixed arm 3, one end of each telescopic arm 2 is provided with a slideway port 20, the fixed arms 3 are inserted in the slideway ports 20, the fixed arms 3 are in sliding fit with the telescopic arms 2, the outer side of each telescopic arm 2 is provided with a first water spray hole 21, the support 1 is rotationally connected with a main gear 4 and two planetary gears 5, the two planetary gears 5 are respectively meshed with two sides of the main gear 4, the center of the main gear 4 is provided with a fixed sleeve 40, the fixed sleeve 40 is fixedly connected with a preset spray arm support 6, the fixed sleeve 40, the fixed arms 3 and the telescopic arms 2 are sequentially communicated, the planetary gears 5 are provided with a fixed connecting rod 50 at the position close to the edge, one end of each telescopic arm 2 close to the fixed arm 3 is provided with a fixed pin 22, a movable connecting rod 7 is arranged between the fixed pin 22 and the movable connecting rod 7 and the fixed pin 7 is connected with the main gear 4 to drive the telescopic arms to rotate when the telescopic arms 2 and the telescopic arms move relatively.

In the above structure, because the fixed sleeve 40 at the central position of the main gear 4 is fixed relative to the spray arm support 6, when the spray arm of the dishwasher rotates, the main gear 4 drives the planetary gear 5 to rotate, and the planetary gear 5 drives the telescopic arm 2 to perform telescopic motion relative to the fixed arm 3 based on the transmission cooperation between the fixed link 50 and the movable link 7, so that the water column emitted from the first water spraying hole 21 moves according to the elliptical track shown in fig. 14 and 15, and thus the water column is uniformly and fully sprayed to the inner container of the rectangular dishwasher, thereby improving the cleaning efficiency and cleaning cleanliness of tableware, and better meeting the application requirements.

Accordingly, the retracted state of the dishwasher spray arm is shown in fig. 11, 12 and 13, in which the movable link 7 is the fixed link 50 in a mutually folded state.

As shown in fig. 3 and 4, the ends of the two telescopic arms 2 are preferably provided with inclined water jet holes 23, respectively, and the inclined water jet holes 23 of the two telescopic arms 2 are in opposite directions. In the structure, when the inclined water spraying holes 23 at the end parts of the two telescopic arms 2 spray water columns, the two telescopic arms 2 can be driven to rotate along the same direction under the influence of the reaction force of water flow, so that the spraying arms of the dish washing machine can automatically rotate when spraying water.

With reference to fig. 5 to 7, regarding the preferred structure of the support 1, in this embodiment, a bottom case 10 is formed on the support 1, the main gear 4 and the two planetary gears 5 are both located in the bottom case 10, a cover plate 11 is fixed on the bottom case 10, the fixing sleeve 40 passes through the cover plate 11 and the cover plate 11 are in running fit with each other, two avoiding openings 12 are formed on the cover plate 11, the two avoiding openings 12 are respectively aligned with the two planetary gears 5, and the fixing connecting rod 50 passes through the avoiding openings 12.

In order to better communicate with the fixing sleeve 40 and to be rotationally matched with the main gear 4, in this embodiment, an inner sleeve 13 communicating with the fixing arm 3 is formed at the center of the bottom case 10, and the fixing sleeve 40 is sleeved outside the inner sleeve 13 and is rotationally matched with the inner sleeve 13.

In order to ensure that the planetary gear 5 rotates reliably, in the present embodiment, two planetary shafts 14 are disposed in the bottom case 10, and the planetary shafts 14 pass through the planetary gear 5 and are in rotational fit with each other.

Referring to fig. 2 and 7, in the present embodiment, a hollow boss 24 is formed on the telescopic arm 2, and the first water spraying hole 21 and the inclined water spraying hole 23 are both disposed on the boss 24. When the telescopic arm 2 and the fixing arm 3 are contracted, the boss 24 is arranged to be hollow, so that the first water spraying hole 21 can be prevented from being covered and blocked when the telescopic arm and the fixing arm are contracted, and the first water spraying hole 21 can still be sprayed by a water column in a contracted state.

Preferably, a second water jet hole 30 is provided on the outer side of the fixing arm 3.

In order to better support and fix the spray arm of the dishwasher, in the embodiment, the spray arm support 6 is formed with a connection pipe 60, and the fixing sleeve 40 is sleeved on the connection pipe 60 and is clamped with the connection pipe 60.

Furthermore, a limiting buckle 61 is formed on the outer side wall of the connecting pipe 60, a limiting slot 42 is formed on the inner side wall of the fixing sleeve 40, and the limiting buckle 61 is clamped in the limiting slot 42. The insertion direction of the fixed sleeve 40 and the connecting pipe 60 can be limited by the matching of the limiting buckle 61 and the limiting clamping groove 42, so that the fool-proof effect is achieved.

Preferably, the gear ratio of the main gear 4 to the planetary gears 5 is 2:1. In practical applications, the elliptical locus shown in fig. 14 and 15 can be realized only when the gear ratio of the two gears is 2:1.

Referring to fig. 1 to 15, the spray arm of the automatic retractable dishwasher of the present embodiment is suitable for being installed in various types of dishwasher liners, and helps to improve the washing efficiency and the washing cleanliness of the dishwasher.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the technical scope of the present invention should be included in the scope of the present invention.

Claims (10)

1. The utility model provides an automatic concertina type dish washer spray arm, its characterized in that, including support (1) and two hollow telescopic arm (2), the both ends of support (1) are equipped with hollow fixed arm (3) respectively, slip road mouth (20) have been seted up to the one end of telescopic arm (2), fixed arm (3) are inserted and are located in slip road mouth (20), just fixed arm (3) with telescopic arm (2) sliding fit, the outside of telescopic arm (2) is equipped with first hole for water spraying (21), support (1) internal rotation is connected with master gear (4) and two planetary gear (5), two planetary gear (5) mesh respectively in the both sides of master gear (4), the center department of master gear (4) is formed with fixed sleeve (40), fixed sleeve (40) fixed connection in spray arm support (6) of predetermineeing, fixed sleeve (40), fixed arm (3) with telescopic arm (2) communicate in proper order, planetary gear (5) are close to the position at the edge and are equipped with fixed connecting rod (50), telescopic arm (2) are close to movable connecting rod (22) and movable connecting rod (7) between fixed pin axle (22) and fixed rod (7) fixed rod (22) and fixed pin axle (7) respectively fixed rod (22) and fixed rod (7) are equipped with two fixed rod (7) movable connecting rod (22) and fixed rod (7) and fixed rod (22) are equipped with the fixed rod (7) are equipped with the activity connecting rod (22) respectively (50) The support (1) rotates relative to the main gear (4), and the planet gear (5) drives the telescopic arm (2) to do telescopic motion through the movable connecting rod (7).

2. The telescopic dishwasher spray arm according to claim 1, wherein the ends of the two telescopic arms (2) are provided with inclined water jets (23), respectively, said inclined water jets (23) of the two telescopic arms (2) being directed in opposite directions.

3. The automatic telescopic dishwasher spray arm according to claim 1, wherein a bottom shell (10) is formed on the support (1), the main gear (4) and the two planetary gears (5) are both located in the bottom shell (10), a cover plate (11) is fixed on the bottom shell (10), the fixing sleeve (40) passes through the cover plate (11) and is in running fit with the cover plate, two avoiding openings (12) are formed on the cover plate (11), the two avoiding openings (12) are respectively aligned with the two planetary gears (5), and the fixing connecting rod (50) passes through the avoiding openings (12).

4. The spray arm of automatic retractable dishwasher of claim 3, wherein an inner housing (13) communicating with the fixing arm (3) is formed at the center of the bottom housing (10), and the fixing sleeve (40) is sleeved outside the inner housing (13) and is rotatably engaged with the inner housing.

5. Automatic telescopic dishwasher spray arm according to claim 3, characterized in that two planetary shafts (14) are provided in the bottom housing (10), said planetary shafts (14) passing through the planetary gear (5) and being in rotational engagement therewith.

6. The telescopic arm of claim 2, wherein the telescopic arm (2) is formed with a hollow boss (24), and the first water jet hole (21) and the inclined water jet hole (23) are formed on the boss (24).

7. Automatic telescopic dishwasher spray arm according to claim 1, characterized in that the outer side of the fixed arm (3) is provided with a second water jet (30).

8. The automatic telescopic type dishwasher spray arm according to claim 1, wherein the spray arm support (6) is formed with a connection pipe (60), and the fixing sleeve (40) is sleeved on the connection pipe (60) and is engaged with the connection pipe.

9. The automatic telescopic type dishwasher spray arm according to claim 8, wherein the outer side wall of the connection pipe (60) is formed with a limit buckle (61), the inner side wall of the fixing sleeve (40) is formed with a limit slot (42), and the limit buckle (61) is clamped in the limit slot (42).

10. The automatic telescopic dishwasher spray arm according to claim 1, characterized in that the gear ratio of the main gear (4) to the planetary gears (5) is 2:1.

Images