CN113243870A

CN113243870A - Water-saving household dish-washing machine

Info

Publication number: CN113243870A
Application number: CN202110590079.8A
Authority: CN
Inventors: 吴秀梅; 俞畅红; 黄小冬
Original assignee: Hangzhou Liujin Luliang Space Design Co ltd
Current assignee: Hangzhou Liujin Luliang Space Design Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-08-13

Abstract

The invention belongs to the field of dish washing machines, and particularly relates to a water-saving household dish washing machine which comprises a machine shell, a machine door, two cleaning mechanisms, a crank and rocker mechanism and an electric drive module C, wherein the two cleaning mechanisms are symmetrically arranged in the upper part and the lower part of a cleaning cavity of the machine shell, and are driven by the crank and rocker mechanism driven by the electric drive module C to carry out all-dimensional cleaning on tableware placed on a dish washing rack; the invention has a plurality of gears, and the spraying direction of the nozzles can be adjusted according to the quantity of the tableware placed in the nozzles, so that the invention ensures that all the nozzles can spray and clean the tableware in a concentrated way no matter how much the quantity of the tableware is placed in the nozzles, and avoids water resource waste caused by that water sprayed by part of the nozzles cannot reach the tableware when a small quantity of tableware is cleaned.

Description

Water-saving household dish-washing machine

Technical Field

The invention belongs to the field of dish washing machines, and particularly relates to a water-saving household dish washing machine.

Background

With the improvement of living standard of people, kitchen dish washing machines are more widely used for the older. The dish washer is used to automatically clean tableware such as dish, chopsticks, dish, knife and fork.

The dish washer has the advantages of time and labor saving, strong decontamination capability, thorough disinfection, simple operation, high washing automation degree, electricity and water saving.

The conventional dish washer has a plurality of modes, and the bowls and chopsticks placed in the dish washer are washed according to a set program in different modes. However, the amount of water to be sprayed cannot be adjusted according to the amount of dishes placed, and the phenomenon of excessive water consumption when washing a small amount of dishes is caused in any case.

At present, cleaning nozzles of a traditional dish washing machine are respectively arranged at the upper part and the lower part of the interior, and the side surfaces of the traditional dish washing machine are not provided with the cleaning nozzles, so that the cleaning effect is influenced.

The present invention is to design a water-saving dishwasher for home use to solve the above problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a water-saving household dish washing machine which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A water-saving household dish washing machine comprises a machine shell, a machine door, two cleaning mechanisms, a crank rocker mechanism and an electric drive module C, wherein the two cleaning mechanisms are symmetrically arranged in the upper part and the lower part of a cleaning cavity of the machine shell, and are driven by the crank rocker mechanism driven by the electric drive module C to carry out all-dimensional cleaning on tableware placed on a dish washing rack; the casing is hinged with a cabinet door for opening and closing the cleaning cavity.

The cleaning mechanism comprises an arc plate, a ring sleeve A, an arc shell, a ring sleeve B, an elastic pipe, a nozzle, an elastic rope, a winding wheel A, a winding wheel B, a steel wire rope A, a slide rod B, an electric drive module A and an electric drive module B, wherein the central axis of the arc plate is vertical to the closed cabinet door, and the arc plate driven by the crank rocker mechanism slides in a movable groove A communicated with the cleaning cavity around the central axis of the arc plate; a water trough in the middle of the outer arc surface of the arc shell is provided with a ring sleeve A communicated with a tap water pipe, and the ring sleeve A driven by the electric driving module A is rotationally matched in a circular trough A in the center of the arc plate; the arc shell is positioned in the cleaning cavity; a plurality of ring sleeves B communicated with the inside of the arc-shaped shell are uniformly arranged on the concave arc surface of the arc-shaped shell along the radian direction of the arc-shaped shell, and the tail end of each ring sleeve B is provided with a nozzle through an elastic pipe; a sliding rod A moves in a ring sleeve A allowing tap water to pass through.

One end of the sliding rod A is rotatably matched with a sliding rod B which is in sealing sliding fit with a sliding hole on a tap water pipe, and the other end of the sliding rod A is provided with two steel wire ropes A which are in sealing sliding fit with sliding chutes A on the concave cambered surface of the cambered shell; the slide bar B is driven by an electric drive module B arranged on the arc plate, and two steel wire ropes A are respectively wound on two winding wheels B symmetrically arranged in the middle of the concave arc surface of the arc shell; two winding wheels A driven by the winding wheels B are symmetrically installed on a fixed shaft A where each winding wheel B is located, and two elastic ropes symmetrically installed on two sides of the nozzle are respectively wound on the two winding wheels A on the same side.

As a further improvement of the technology, the elasticity of the elastic pipe is sequentially weakened from the two sides of the arc-shaped shell to the middle of the arc-shaped shell, the closer the nozzle is to the middle and the closer the nozzle is to the tableware is ensured to be smaller in swinging angle under the pulling of the elastic rope, and then the condition that the nozzle can be completely and effectively sprayed and washed after swinging is ensured.

As a further improvement of the technology, the dish washing rack is provided with a plurality of concentric area prompting rings.

As a further improvement of the technology, the top and the bottom in the cleaning cavity are provided with concave cambered surfaces which prevent the arc plate from moving and being blocked.

As a further improvement of the technology, the ring sleeve A swings around the central axis of the corresponding arc-shaped shell in a swinging groove A which is communicated with the movable groove A and the cleaning cavity; two arc-shaped trapezoidal guide blocks are symmetrically arranged on the arc plate, and the two trapezoidal guide blocks slide in the two trapezoidal guide grooves in the movable groove A respectively; the circular ring arranged on the ring sleeve A rotates in the circular groove A on the inner wall of the circular groove A; the ring sleeve B is arranged in a circular groove B on the concave cambered surface of the arc-shaped shell; the fixed shaft A is arranged between the two fixed seats A; the winding wheel B which is in rotary fit with the fixed shaft A is connected with the two coaxial winding wheels A through the shaft sleeve A; the electric drive module A is arranged on the arc plate; the belt wheel A arranged on the output shaft of the electric drive module A is in transmission connection with a belt wheel B arranged on the ring sleeve A through a synchronous belt.

As a further improvement of the technology, the sliding rod B axially and hermetically slides in a sliding hole on the wall of the right-angle circular tube; the sliding rod B is symmetrically provided with two guide blocks B which respectively slide in two guide grooves B on the inner wall of a circular groove D on the fixed seat B; one end of the sliding rod B, which is provided with the round block, rotates in the stepped round groove C at one end of the sliding rod A; a winding wheel C is mounted on an output shaft of the electric drive module B, and a steel wire rope B is wound on the winding wheel C; the steel wire rope B bypasses a fixed pulley arranged on the fixed seat B and is connected with the sliding rod B.

As a further improvement of the technology, the crank rocker mechanism comprises a U rod, a shaft sleeve B, a rocker, a connecting rod and a crank wheel, wherein two ends of the U rod are fixedly connected with arc plates in the two cleaning mechanisms respectively, and the middle part of the U rod is in rotating fit with a fixed shaft B arranged in a movable groove B on the shell; the electric drive module C is arranged in the movable groove B; a crank wheel arranged on an output shaft of the electric drive module C is hinged with a connecting rod, and a rocker which is rotationally matched with the fixed shaft B is hinged with the tail end of the connecting rod; the rocker is fixedly connected with the U rod through a shaft sleeve B rotating on the fixed shaft D; the two U-shaped rods swing in a swing groove B communicated with the movable groove B and the movable groove A around the central axis of the fixed shaft B respectively.

Compared with the traditional dish washer, the invention has a plurality of gears, and the spraying direction of the nozzles can be adjusted according to the quantity of the tableware placed in the dish washer, so that the tableware can be intensively sprayed and cleaned no matter how many tableware are placed in the dish washer, and the waste of water resources caused by the fact that water sprayed by part of the nozzles cannot reach the tableware when a small amount of tableware is cleaned is avoided. On the other hand, because the nozzles are uniformly distributed on the arc-shaped shells, in the sobering tableware process, the upper arc-shaped shell and the lower arc-shaped shell drive the nozzles to generate reciprocating swing around the tableware under the driving of the electric driving module C, and simultaneously, the upper arc plate and the lower arc plate drive the nozzles to rotate around the central axis of the corresponding ring sleeve A under the driving of the electric driving module A, so that the nozzles arranged on the two arc-shaped shells are ensured to carry out all-dimensional cleaning on the tableware, the cleaning effect of the tableware is enhanced, and the cleaning efficiency of the tableware is improved. The invention has simple structure and better use effect.

Drawings

Fig. 1 is an overall schematic view of the present invention.

Fig. 2 is a schematic overall cross-sectional view from two perspectives of the present invention.

FIG. 3 is a cross-sectional view of the nozzle, arc shell, ring A, arc plate, belt pulley B, timing belt, belt pulley A and electric drive module A.

Fig. 4 is a schematic section view of the ring sleeve a, a right-angle circular tube, a fixed seat B, an electric drive module B, a winding wheel C, a steel wire rope B, a sliding rod a and the ring sleeve C in cooperation.

Fig. 5 is a schematic cross-sectional view of the cleaning mechanism in two views in cooperation with the housing.

Fig. 6 is a schematic cross-sectional view of the cleaning mechanism, U-bar, shaft sleeve B, rocker, connecting rod, crank wheel and electric drive module C.

Fig. 7 is a schematic cross-sectional view of the housing and two views thereof.

FIG. 8 is a schematic view of a dishwashing rack.

Fig. 9 is a schematic view of the purge mechanism.

Fig. 10 is a schematic view of the nozzle, elastic cord, winding wheel a and winding wheel B in two views.

FIG. 11 is a schematic cross-sectional view of the fixed shaft A, the sleeve A, the winding wheel A and the winding wheel B.

Fig. 12 is a schematic cross-sectional view of the fitting of the ring sleeve a to the shell.

Figure 13 is a schematic cross-sectional view of an arc plate and its view.

Fig. 14 is a schematic sectional view of a slide bar a.

Fig. 15 is a sectional view of the fixing base B.

FIG. 16 is a schematic view of a crank and rocker mechanism.

Number designation in the figures: 1. a housing; 2. a cleaning chamber; 4. a swinging groove A; 5. a movable groove A; 6. a swing groove B; 7. a movable groove B; 8. a trapezoidal guide groove; 9. a cabinet door; 10. a dish washing rack; 11. a zone prompt ring; 12. a cleaning mechanism; 13. an arc plate; 14. a circular groove A; 15. a ring groove A; 16. a trapezoidal guide block; 17. a ring sleeve A; 18. a ring groove B; 19. an arcuate shell; 20. a water trough; 21. a circular groove B; 22. a chute A; 23. a ring sleeve B; 24. an elastic tube; 25. a nozzle; 27. an elastic cord; 28. a winding wheel A; 29. a shaft sleeve A; 30. fixing a shaft A; 31. a winding wheel B; 32. a fixed seat A; 33. a steel wire rope A; 34. a slide bar A; 35. a circular groove C; 36. a guide block A; 37. c, sleeving a ring sleeve; 38. a guide groove A; 39. fixing the rod; 40. a rotary seal structure; 41. a round block; 42. a slide bar B; 43. a guide block B; 44. a right-angled circular tube; 45. a belt pulley B; 46. a synchronous belt; 47. a pulley A; 48. an electric drive module A; 49. a steel wire rope B; 50. a fixed pulley; 51. a winding wheel C; 52. an electric drive module B; 53. a fixed seat B; 54. a circular groove D; 55. a guide groove B; 56. a U-bar; 57. a shaft sleeve B; 58. a swing rod; 59. a connecting rod; 60. a crank wheel; 61. an electric drive module C; 62. a crank and rocker mechanism; 63. a fixed shaft B; 64. a circular ring.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1, 2 and 6, it comprises a casing 1, a cabinet door 9, cleaning mechanisms 12, a crank and rocker mechanism 62, and an electric drive module C61, wherein as shown in fig. 2, 6 and 7, two cleaning mechanisms 12 are symmetrically installed in the cleaning chamber 2 of the casing 1, and the two cleaning mechanisms 12 are driven by the crank and rocker mechanism 62 driven by the electric drive module C61 to perform all-directional cleaning on the tableware placed on the dish washing rack 10; as shown in fig. 1 and 2, a cabinet door 9 for opening and closing the cleaning chamber 2 is hinged on the casing 1.

As shown in fig. 9, the above-mentioned washing mechanism 12 comprises an arc plate 13, a loop ring a17, an arc shell 19, a loop ring B23, an elastic tube 24, a nozzle 25, an elastic rope 27, a winding wheel a28, a winding wheel B31, a steel wire rope a33, a sliding rod a34, a sliding rod B42, an electric driving module a48 and an electric driving module B52, wherein as shown in fig. 2, 3 and 7, the central axis is perpendicular to the closed cabinet door 9 and the arc plate 13 driven by the crank-rocker mechanism 62 slides around the central axis thereof in a movable groove a5 communicated with the washing chamber 2; as shown in fig. 3, 4 and 12, a ring sleeve A17 communicated with a tap water pipe is arranged at the water trough 20 in the middle of the outer cambered surface of the cambered shell 19; as shown in fig. 3, 4 and 13, the ring sleeve a17 driven by the electric drive module a48 is rotationally fitted in a circular groove a14 at the center of the arc plate 13; as shown in fig. 2 and 6, the arc-shaped shell 19 is positioned in the cleaning cavity 2; as shown in fig. 3 and 10, a plurality of ring sleeves B23 communicated with the inside of the concave arc surface of the arc shell 19 are uniformly arranged on the concave arc surface along the radian direction of the concave arc surface, and the tail end of each ring sleeve B23 is provided with a nozzle 25 through an elastic pipe 24; as shown in fig. 3, 4 and 5, a slide bar a34 is moved along the inner axis of a ring sheath a17 for allowing tap water to pass through.

As shown in fig. 3, 4 and 12, one end of the sliding rod a34 is rotatably matched with a sliding rod B42 which is in sealing sliding fit with a sliding hole on a tap water pipe, and the other end of the sliding rod a34 is provided with two steel wire ropes a33 which are in sealing sliding fit with sliding grooves a22 on the concave cambered surface of the cambered shell 19; as shown in fig. 3, 4 and 5, the sliding rod B42 is driven by an electric drive module B52 mounted on the arc plate 13, and two steel wire ropes a33 are respectively wound on two winding wheels B31 symmetrically mounted in the middle of the concave arc surface of the arc shell 19; as shown in fig. 10 and 11, two winding wheels a28 driven by winding wheels B31 are symmetrically mounted on a fixed shaft a30 where each winding wheel B31 is located, and two elastic ropes 27 symmetrically mounted on two sides of the nozzle 25 are respectively wound on the two winding wheels a28 on the same side.

As shown in fig. 3 and 10, the elasticity of the elastic tube 24 is gradually weakened from the two sides of the arc-shaped shell 19 to the middle of the arc-shaped shell 19, so that the nozzle 25 closer to the middle and closer to the tableware is ensured to swing at a smaller angle under the pulling of the elastic cord 27, and further, the nozzle 25 is ensured to swing to be capable of effectively spraying and washing the tableware in a concentrated manner.

As shown in fig. 2 and 8, the dish rack 10 has a plurality of concentric zone indication rings 11.

As shown in fig. 2 and 7, the top and bottom of the cleaning chamber 2 have concave curved surfaces to prevent the movement of the arc plate 13 from being hindered.

As shown in fig. 3, 6 and 7, the annular sleeve a17 swings around the central axis of the corresponding arc-shaped shell 19 in a swinging groove a4 communicating the movable groove a5 with the cleaning chamber 2; as shown in fig. 6, 7 and 13, two arc-shaped trapezoidal guide blocks 16 are symmetrically installed on the arc plate 13, and the two trapezoidal guide blocks 16 respectively slide in the two trapezoidal guide grooves 8 in the movable groove a 5; as shown in fig. 3 and 13, the ring 64 installed on the ring sleeve a17 rotates in the ring groove a15 on the inner wall of the circular groove a 14; as shown in fig. 3, 10 and 12, the ring sleeve B23 is installed in the circular groove B21 on the concave arc surface of the arc shell 19; as shown in fig. 10 and 11, the fixed shaft a30 is installed between two fixed seats a 32; the winding wheel B31 which is rotationally matched with the fixed shaft A30 is connected with two coaxial winding wheels A28 through a shaft sleeve A29; as shown in fig. 3 and 4, the electric drive module a48 is mounted on the arc plate 13; the pulley A47 mounted on the output shaft of the electric drive module A48 is in transmission connection with the pulley B45 mounted on the ring sleeve A17 through a timing belt 46.

As shown in fig. 4 and 5, the sliding rod B42 axially slides in the sliding hole on the wall of the right-angle circular tube 44 in a sealing manner; as shown in fig. 5 and 15, two guide blocks B43 are symmetrically installed on the sliding rod B42, and the two guide blocks B43 respectively slide in two guide grooves B55 on the inner wall of the circular groove D54 on the fixing seat B53; as shown in fig. 5 and 14, one end of the sliding rod B42, which is provided with the round block 41, rotates in the stepped round groove C35 at one end of the sliding rod a 34; a winding wheel C51 is mounted on an output shaft of the electric drive module B52, and a steel wire rope B49 is wound on the winding wheel C51; the steel wire rope B49 is connected with the sliding rod B42 by passing through the fixed pulley 50 arranged on the fixed seat B53.

As shown in fig. 6 and 16, the crank-rocker mechanism 62 comprises a U-rod 56, a shaft sleeve B57, a rocker, a connecting rod 59, and a crank wheel 60, wherein as shown in fig. 6, two ends of the U-rod 56 are respectively fixedly connected with the arc plates 13 of the two cleaning mechanisms 12, and the middle part of the U-rod 56 is rotatably matched with a fixed shaft B63 installed in a movable groove B7 on the machine case 1; the electric drive module C61 is installed in the movable groove B7; as shown in fig. 6 and 16, a crank wheel 60 mounted on the output shaft of the electric drive module C61 is hinged with a connecting rod 59, and a rocker rotatably matched with the fixed shaft B63 is hinged with the tail end of the connecting rod 59; the rocker is fixedly connected with the U rod 56 through a shaft sleeve B57 rotating on the fixed shaft D; as shown in fig. 6 and 7, two branches of the U-bar 56 swing around the central axis of the fixed shaft B63 in the swing groove B6 communicating the movable groove B7 and the movable groove a5, respectively.

The dish rack 10 of the present invention is merely illustrative, and dishes to be washed are placed in the specific area indication ring 11 according to the number.

The electric drive module A48, the electric drive module B52 and the electric drive module C61 of the present invention are all available in the art, and the electric drive module A48, the electric drive module B52 and the electric drive module C61 are all powered by an electric motor, a speed reducer and a control unit.

The rotary seal structure 40 of the present invention is of the prior art.

The working process of the invention is as follows: in the initial state, the nozzles 25 in each cleaning mechanism 12 are parallel to the central axis of the respective ring loop A17, and the water spray direction of the nozzles 25 is parallel to the central axis of the respective ring loop A17 and corresponds to the largest diameter zone indicating ring 11 on the dishwasher rack 10.

When the tableware washing machine is used for washing tableware, the tableware is intensively placed in a certain area prompting ring 11 on the dish washing rack 10 in the washing cavity 2, and the water spraying directions of the nozzles 25 in the two washing mechanisms 12 are adjusted according to the size of the area prompting ring 11 occupied by a certain amount of tableware. The two cleaning mechanisms 12 are all provided with the nozzles 25, so that the respective sprayed tap water can be sprayed to the concentrated area where the tableware is located, the tableware cleaning efficiency of the invention is improved, and the waste of water resources caused by the fact that part of the nozzles 25 in the cleaning mechanisms 12 cannot spray the tableware is avoided.

If the number of dishes is small, the smaller the diameter of the indication ring 11 of the area occupied by the dishes placed in the washing chamber 2 on the dish rack 10, the smaller the direction of water spray from the spray nozzles 25 of the two washing units 12 is adjusted according to the size of the indication ring 11 of the area occupied by the dishes on the dish rack 10.

The flow of adjusting the water spray direction of the nozzle 25 in the cleaning mechanism 12 is as follows:

the control system controls the electric drive modules B52 in the two washing mechanisms 12 to operate, the electric drive module B52 in each washing mechanism 12 drives the corresponding winding wheel C51 to wind the corresponding steel wire rope B49, the steel wire rope B49 drives the two winding wheels B31 to rotate through the corresponding sliding rod B42, the sliding rod A34 and the two steel wire ropes A33 wound on the two winding wheels B31, and the two winding wheels B31 drive the two coaxial winding wheels A28 to synchronously rotate through the corresponding shaft sleeves A29. The two winding wheels a28, which are coaxial with each winding wheel B31, respectively wind the elastic cord 27 wound thereon to which the nozzle 25 is connected.

The plurality of nozzles 25 at one side of the middle portion in the arc-shaped shell 19 of each cleaning mechanism 12 are pulled by the corresponding elastic ropes 27 to move toward the tableware placed in the upper region prompting ring 11 for gathering swing, and the plurality of nozzles 25 at the other side of the middle portion in the arc-shaped shell 19 are pulled by the corresponding elastic ropes 27 to move toward the tableware placed in the upper region prompting ring 11 for gathering swing.

Because the elasticity of the elastic tube 24 is sequentially weakened from the two sides of the arc-shaped shell 19 to the middle of the arc-shaped shell 19, the swinging angle of the nozzle 25 on the arc-shaped shell 19 to the direction of the tableware is sequentially reduced from the two ends of the arc-shaped shell 19 to the middle, the swinging angle of the nozzle 25 which is closer to the middle and closer to the tableware is ensured to be smaller, and then the nozzle 25 is ensured to be capable of completely and effectively spraying and washing the tableware in a concentrated manner after swinging. Wherein the greater the stretched length of the elastic string 27 connected to the nozzle 25 in which the elastic tube 24 having a weaker elasticity is located.

When the spray nozzles 25 of the arc-shaped housings 19 of the two cleaning mechanisms 12 are all centered on the dishes on the rack 10 and just form a full-coverage condition for the dishes, the control system controls the electric drive modules B52 of the two cleaning mechanisms 12 to stop operating.

Then, after the cabinet door 9 is closed, the tap water is opened, and the electric drive module A48 and the electric drive module C61 in the two cleaning mechanisms 12 are controlled and started simultaneously by the control system. The tap water is sprayed through the nozzle 25 onto the dishes through the rectangular tube 44, the annular ring A17 and the arcuate housing 19 of the two washing units 12.

At the same time, electric drive module a48 in wash mechanism 12 rotates respective arcuate housing 19 about the central axis of ring housing a17 within wash chamber 2 via respective pulley a47, timing belt 46, pulley B45 and ring housing a 17. The electric drive module C61 in the cleaning mechanism 12 drives the arc plates 13 in the two cleaning mechanisms 12 to slide in a reciprocating manner around the central axis of the arc plate 13 in the corresponding movable groove A5 through the crank wheel 60, the connecting rod 59, the rocker, the shaft sleeve B57 and the U rod 56, the arc plates 13 drive the corresponding arc shells 19 to swing in a reciprocating manner around the central axis of the arc plate 13 through the corresponding ring sleeves A17, the arc shells 19 in the two cleaning mechanisms 12 are ensured to drive the spray nozzles 25 to rotate around the central axis of the ring sleeves A17 and simultaneously swing in a reciprocating manner around the central axis of the corresponding arc plates 13, and therefore the two cleaning mechanisms 12 can clean the tableware in the fixed area prompt ring 11 on the dish washing rack 10 in an omnibearing manner, and the cleaning efficiency of the tableware is improved.

After the smaller amount of tableware is cleaned and the washing chamber 2 is taken out, if more tableware is needed to be cleaned, the water spraying direction of the nozzles 25 in the washing mechanism 12 is adjusted in the direction of increasing the water spraying area of the nozzles 25 according to the size of the region indicating ring 11 occupied by the larger amount of tableware in the middle of the dish rack 10.

At this time, the control system controls the electric driving module B52 in the two washing mechanisms 12 to run in reverse, the electric driving module B52 drives the winding wheel C51 to rotate in reverse, the winding wheel C51 discharges the steel wire rope B49 wound thereon, the elastic ring sleeve B23 on each nozzle 25, which is bent and deformed by the swinging of the nozzle 25, pulls the winding wheel a28 to rotate in reverse through the nozzle 25 and the elastic rope 27, and the winding wheel a28 drives the winding wheel B31 to wind the steel wire rope a33 through the corresponding shaft sleeve a 29. Two steel cables a33 are pulled through slide bar a34 and slide bar B42 to tighten steel cable B49 paid off by winding wheel C51. All the nozzles 25 in the two washing mechanisms 12 are swung back in the direction of the initial state. When the nozzles 25 of the arc-shaped housings 19 of the two cleaning mechanisms 12 are all focused on a larger number of dishes on the dish rack 10 and a full-coverage state is just formed for the dishes, the control system controls the electric drive modules B52 of the two cleaning mechanisms 12 to stop operating. Then the cabinet door 9 is closed and the invention is started to clean the tableware.

In conclusion, the beneficial effects of the invention are as follows: the invention has a plurality of gears, can adjust the spraying direction of the spray nozzles 25 according to the quantity of the tableware put into the invention, thus ensuring that all the spray nozzles 25 can spray and clean the tableware intensively no matter how much the quantity of the tableware put into the spray nozzles, avoiding water resource waste caused by that part of water sprayed by the spray nozzles 25 can not reach the tableware when cleaning a small quantity of tableware, and for the adjustment of the gears, except for the change of the spraying direction, the water flow impact time needs to be adjusted, the tableware is few, after the concentrated impact on the nozzles, the cleaning time is short, and the water pressure is not used as an adjusting parameter, so the adjustment is more convenient. On the other hand, because the nozzles 25 in the invention are uniformly distributed on the arc-shaped shells 19, in the process of waking tableware, the upper and lower arc-shaped shells 19 are driven by the electric driving module C61 to drive the nozzles 25 to generate reciprocating swing around the tableware, and simultaneously, the upper and lower arc plates 13 are driven by the electric driving module A48 to drive the nozzles 25 to rotate around the central axis of the corresponding ring sleeve A17, so that the nozzles 25 arranged on the two arc-shaped shells 19 can be ensured to carry out all-directional cleaning on the tableware, the cleaning effect of the tableware is enhanced, and the cleaning efficiency of the tableware is improved.

Claims

1. A water-saving household dishwasher, characterized in that: the dishwasher comprises a machine shell, a cabinet door, cleaning mechanisms, a crank and rocker mechanism and an electric drive module C, wherein two cleaning mechanisms are symmetrically arranged in the upper part and the lower part in a cleaning cavity of the machine shell, and are driven by the crank and rocker mechanism driven by the electric drive module C to carry out all-dimensional cleaning on tableware placed on a dish washing rack; a cabinet door for opening and closing the cleaning cavity is hinged on the casing;

the cleaning mechanism comprises an arc plate, a ring sleeve A, an arc shell, a ring sleeve B, an elastic pipe, a nozzle, an elastic rope, a winding wheel A, a winding wheel B, a steel wire rope A, a slide rod B, an electric drive module A and an electric drive module B, wherein the central axis of the arc plate is vertical to the closed cabinet door, and the arc plate driven by the crank rocker mechanism slides in a movable groove A communicated with the cleaning cavity around the central axis of the arc plate; a water trough in the middle of the outer arc surface of the arc shell is provided with a ring sleeve A communicated with a tap water pipe, and the ring sleeve A driven by the electric driving module A is rotationally matched in a circular trough A in the center of the arc plate; the arc shell is positioned in the cleaning cavity; a plurality of ring sleeves B communicated with the inside of the arc-shaped shell are uniformly arranged on the concave arc surface of the arc-shaped shell along the radian direction of the arc-shaped shell, and the tail end of each ring sleeve B is provided with a nozzle through an elastic pipe; a sliding rod A moves in the ring sleeve A allowing tap water to pass through;

2. A water-saving household dishwasher as claimed in claim 1, characterized in that: the elasticity of the elastic tube is weakened from the two sides of the arc-shaped shell to the middle of the arc-shaped shell in sequence.

3. A water-saving household dishwasher as claimed in claim 1, characterized in that: the dish washing rack is provided with a plurality of concentric region prompting rings.

4. A water-saving household dishwasher as claimed in claim 1, characterized in that: the top and the bottom in the cleaning cavity are provided with concave cambered surfaces for preventing the arc plate from being blocked.

5. A water-saving household dishwasher as claimed in claim 1, characterized in that: the ring sleeve A swings around the central axis of the corresponding arc-shaped shell in a swinging groove A which is communicated with the movable groove A and the cleaning cavity; two arc-shaped trapezoidal guide blocks are symmetrically arranged on the arc plate, and the two trapezoidal guide blocks slide in the two trapezoidal guide grooves in the movable groove A respectively; the circular ring arranged on the ring sleeve A rotates in the circular groove A on the inner wall of the circular groove A; the ring sleeve B is arranged in a circular groove B on the concave cambered surface of the arc-shaped shell; the fixed shaft A is arranged between the two fixed seats A; the winding wheel B which is in rotary fit with the fixed shaft A is connected with the two coaxial winding wheels A through the shaft sleeve A; the electric drive module A is arranged on the arc plate; the belt wheel A arranged on the output shaft of the electric drive module A is in transmission connection with a belt wheel B arranged on the ring sleeve A through a synchronous belt.

6. A water-saving household dishwasher as claimed in claim 1, characterized in that: the sliding rod B axially and hermetically slides in a sliding hole in the pipe wall of the right-angle circular pipe; the sliding rod B is symmetrically provided with two guide blocks B which respectively slide in two guide grooves B on the inner wall of a circular groove D on the fixed seat B; one end of the sliding rod B, which is provided with the round block, rotates in the stepped round groove C at one end of the sliding rod A; a winding wheel C is mounted on an output shaft of the electric drive module B, and a steel wire rope B is wound on the winding wheel C; the steel wire rope B bypasses a fixed pulley arranged on the fixed seat B and is connected with the sliding rod B.

7. A water-saving household dishwasher as claimed in claim 1, characterized in that: the crank and rocker mechanism comprises a U rod, a shaft sleeve B, a rocker, a connecting rod and a crank wheel, wherein two ends of the U rod are fixedly connected with arc plates in the two cleaning mechanisms respectively, and the middle part of the U rod is in rotating fit with a fixed shaft B arranged in a movable groove B on the machine shell; the electric drive module C is arranged in the movable groove B; a crank wheel arranged on an output shaft of the electric drive module C is hinged with a connecting rod, and a rocker which is rotationally matched with the fixed shaft B is hinged with the tail end of the connecting rod; the rocker is fixedly connected with the U rod through a shaft sleeve B rotating on the fixed shaft D; the two U-shaped rods swing in a swing groove B communicated with the movable groove B and the movable groove A around the central axis of the fixed shaft B respectively.