CN216393997U

CN216393997U - Driving device for spray arm, seat body and dish washing machine

Info

Publication number: CN216393997U
Application number: CN202120355263.XU
Authority: CN
Inventors: 张留广; 金亨浚
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2022-04-29
Anticipated expiration: 2031-02-08

Abstract

The utility model discloses a driving device for a spray arm, a seat body and a dish washing machine, wherein the driving device comprises: the spraying device comprises a base body, a rotating piece, a transmission shaft and a driving piece, wherein the rotating piece is rotatably arranged on the base body and is used for connecting a spraying arm; the transmission piece is movably arranged on the base body and is in transmission connection with the rotating piece so as to drive the rotating piece to rotate; the transmission shaft is rotatably arranged on the seat body and is in transmission connection with the transmission piece so as to drive the transmission piece to move; the driving piece is arranged on the seat body and is in transmission connection with the transmission shaft so as to drive the transmission shaft to rotate. According to the driving device for the spray arm, the spray arm can be driven to realize directional or range flushing.

Description

Driving device for spray arm, seat body and dish washing machine

Technical Field

The utility model relates to the technical field of kitchen electricity, in particular to a driving device for a spray arm, a base body applied to the driving device and a dish washing machine comprising the driving device.

Background

The working process of the dishwasher is as follows: the washed tableware is put into the dish washer, the washing program is selected, the corresponding selection switch is pressed, the power supply is switched on, and the program controller starts to work. After the water reaches a certain temperature, the water is sprayed out through the water spraying holes of the spraying arms, the spraying arms rotate under the reaction force of the sprayed water and continuously spray the water onto the tableware, so that the viscosity and the adhesive force of the grease are reduced, and then the dirt is sprayed and washed cleanly. Because the spray arm of the existing dish washer is fixed on the base of the dish washer, the driving force of the spray arm is the reaction force of water spraying, so the washing angle and the washing range of the spray arm are relatively fixed, which causes that the existing dish washer has a washing dead angle and can not thoroughly wash tableware.

SUMMERY OF THE UTILITY MODEL

One object of the utility model is to provide a drive device for a spray arm, which can drive the spray arm to achieve directional or range-specific flushing.

Another objective of the present invention is to provide a base, which is suitable for the aforementioned driving device.

A further object of the present invention is to propose a dishwasher comprising the aforementioned drive device.

The driving device for the spray arm according to the embodiment of the utility model comprises: the spraying device comprises a base body, a rotating part, a transmission shaft and a driving part, wherein the rotating part is rotatably arranged on the base body and is used for connecting a spraying arm; the transmission piece is movably arranged on the seat body and is in transmission connection with the rotating piece so as to drive the rotating piece to rotate; the transmission shaft is rotatably arranged on the seat body and is in transmission connection with the transmission piece so as to drive the transmission piece to move; the driving piece is in transmission connection with the transmission shaft so as to drive the transmission shaft to rotate.

According to the driving device for the spray arm, the spray arm can be driven to realize directional or range flushing.

In addition, the driving device for the spray arm according to the above embodiment of the present invention may further have the following additional technical features:

optionally, the rotation central shaft of the rotating member extends along a longitudinal direction, the transmission member is movably disposed on the base body along a transverse direction, the transmission shaft extends along a vertical direction, and the longitudinal direction, the transverse direction and the vertical direction are perpendicular to each other.

Optionally, be equipped with on the pedestal along a plurality of vertical interval the driving medium, just the transmission shaft includes a plurality ofly, and is a plurality of the transmission shaft is connected with a plurality of the transmission medium correspondingly transmission, every the driving medium all with at least one rotate the transmission and be connected.

Optionally, the middle part of the transmission member along the transverse direction is in transmission connection with the transmission shaft, and both ends of the transmission member along the transverse direction are in transmission connection with at least one rotating member, so as to transmit with the plurality of rotating members through one transmission member.

Optionally, the transmission shaft comprises a shaft portion and a first gear, and the transmission member comprises a first rack, the first gear and the first rack being in mesh with each other.

Optionally, the transmission member further includes a first stop bar, the first stop bar is disposed in parallel with the first rack, the teeth of the first rack are disposed on one side of the first rack facing the first stop bar, and the first gear is rotatably disposed between the first stop bar and the first rack.

Optionally, there are a plurality of coaxial coupling on the axial region first gear, it is a plurality of first gear is followed the axial setting of axial region, and it is a plurality of first gear and same axial region fixed connection, the driving medium includes with a plurality of the first gear corresponds a plurality ofly, and every the driving medium all corresponds the transmission and is connected with at least one the rotation piece.

Optionally, one end of the shaft portion is connected to the driving member and the other end is coaxially connected to a first gear, and the first gear and the shaft portion are separately arranged and fixedly connected.

Optionally, the driving member is disposed on the seat body.

Optionally, a positioning groove is formed in the base body, the positioning groove and the transmission shaft extend in the same direction, and the transmission shaft is rotatably embedded into the positioning groove.

Optionally, a fastening structure is arranged in the positioning groove, an annular groove is formed in the circumferential surface of the transmission shaft, and the annular groove is fastened with the fastening structure to position the transmission shaft and enable the transmission shaft to be rotatable.

Optionally, a fixing member is further disposed on the base body, the fixing member is connected to the base body, and the fixing member seals the positioning groove.

Optionally, the pedestal includes bottom plate, first rib and second rib, first rib with the second rib all with the bottom plate links to each other and sets up relatively, first rib with inject between the second rib the constant head tank, the mounting includes baffle, first turn-ups and second turn-ups, the baffle closing cap the constant head tank, first turn-ups with the second turn-ups is located respectively first rib with the outside of second rib, the lateral surface of first rib with all be equipped with first clamping part on the lateral surface of second rib, first turn-ups with the second turn-ups all includes the shell fragment, be equipped with second clamping part on the shell fragment, first clamping part with one in the second clamping part is for calorie hole and another is the card protruding, the card protruding with the card hole corresponds the block.

Optionally, the rotating member comprises a second gear, and the transmission member comprises a second rack, the second gear and the second rack being in mesh with each other.

Optionally, the transmission member further includes a second stop bar, the second stop bar and the second rack are arranged in parallel relatively, the gear teeth of the second rack are arranged on one side of the second rack facing the second stop bar, and the second gear is rotatably arranged between the second stop bar and the second rack.

Optionally, the transmission member includes a plurality of second racks, and the plurality of second racks are respectively used for driving the rotation member, so that one of the transmission members drives the plurality of spray arms to rotate.

Optionally, the transmission member includes a first rack and a second rack, the transmission shaft includes a first gear, the rotation member includes a second gear, the first rack is engaged with the first gear, the second rack is engaged with the second gear, the first rack and the second rack both extend along a transverse direction, and the teeth of the first rack are perpendicular to the teeth of the second rack.

Optionally, a guide groove is formed in the base body, the transmission member is embedded in the guide groove, and the transmission member is movable along the extending direction of the guide groove.

Optionally, two opposite side surfaces of the guide groove are respectively provided with a supporting block, and the supporting blocks are used for supporting the movement of the transmission member.

Optionally, the transmission is constructed as a unitary structure.

Optionally, a support rod is arranged on the base, and the rotating member is rotatably supported on the support rod.

According to the seat body of the utility model, the seat body is suitable for the driving device for the spray arm, the seat body is provided with a guide groove, the guide groove extends along the transverse direction, and the guide groove is suitable for accommodating the transmission piece and guiding the transmission piece to move along the transverse direction.

Optionally, the base body is provided with a plurality of guide grooves arranged at intervals along a vertical direction, the base body is further provided with a positioning groove, the positioning groove extends along the vertical direction, the guide grooves and the positioning groove are crossed and communicated, and the positioning groove is configured to accommodate a transmission shaft and to enable the transmission shaft to rotate.

Optionally, the positioning groove is formed in the middle of the upper edge of the seat body in the transverse direction.

Optionally, the seat body includes a bottom plate, and a first rib, a second rib, a third rib, and a fourth rib that are disposed on the bottom plate, where the first rib and the second rib extend along a vertical direction and are spaced apart along a horizontal direction to form the positioning groove, and the third rib and the fourth rib extend along a horizontal direction and are spaced apart along a vertical direction to form the guiding groove.

The dishwasher according to the present invention comprises: the washing machine comprises a machine body and a driving device, wherein a washing cavity is arranged in the machine body; the drive is according to the drive for the spray arm described above.

Optionally, the base body is provided with a plurality of transmission parts which are arranged at intervals along the vertical direction, the transmission shaft is in transmission connection with the transmission parts, and each transmission part is in transmission connection with at least one of the rotation parts.

Optionally, the dishwasher further comprises a spray arm adapted to be connected to the rotating member and extending coaxially with a rotation center axis of the rotating member.

Optionally, the base is disposed on a back plate of the machine body or the base and the back plate of the machine body are integrated together.

Optionally, the driving member is disposed at one end of the seat body along the vertical direction.

Drawings

Fig. 1 is a schematic view of a spray arm assembly according to an embodiment of the present invention.

Fig. 2 is an enlarged partial schematic view of the area circled a1 in fig. 1.

Fig. 3 is an enlarged partial schematic view of the area circled a2 in fig. 1.

Fig. 4 is a cross-sectional view of a spray arm assembly according to one embodiment of the present invention.

Fig. 5 is an enlarged partial schematic view of the area circled a3 in fig. 4.

Fig. 6 is an enlarged partial schematic view of the area circled a4 in fig. 4.

FIG. 7 is a cross-sectional view of section B1-B1 of FIG. 4.

Fig. 8 is an enlarged partial schematic view of the area circled a5 in fig. 7.

Fig. 9 is an enlarged partial schematic view of the area circled a6 in fig. 7.

FIG. 10 is a cross-sectional view of section B2-B2 of FIG. 4.

Fig. 11 is an enlarged partial schematic view of the area circled a7 in fig. 10.

Fig. 12 is an exploded view of a spray arm assembly according to one embodiment of the present invention.

Fig. 13 is an enlarged partial schematic view of the area circled A8 in fig. 12.

Fig. 14 is a schematic view of a mounting member of the spray arm assembly according to one embodiment of the present invention.

Fig. 15 is a schematic view of a spray arm assembly according to another embodiment of the present invention.

Fig. 16 is a cross-sectional view of fig. 15.

FIG. 17 is a cross-sectional view of section B3-B3 of FIG. 16.

FIG. 18 is a cross-sectional view of section B4-B4 of FIG. 16.

FIG. 19 is a cross-sectional view of section B5-B5 of FIG. 16.

Fig. 20 is an exploded view of a spray arm assembly according to another embodiment of the present invention.

Reference numerals:

the spray arm assembly 100, the seat body 11, the bottom plate 111, the first rib 112, the second rib 113, the fastening structure 114, the positioning groove 1101, the first fastening portion 1102, the guide groove 1103, the support block 1104, the support rod 1105, the rotating member 12, the second gear 121, the transmission member 13, the first rack 131, the first stopper 132, the second rack 133, the second stopper 134, the transmission shaft 14, the shaft portion 141, the first gear 142, the annular groove 1401, the driving member 15, the water distribution member 16, the shaft sleeve 161, the boss 162, the seal ring 163, the fixing member 17, the baffle 171, the first flange 172, the second flange 173, the spring piece 174, the second fastening portion 175, and the spray arm 20.

Detailed Description

The utility model can adopt a slender spray arm, the spray arm 20 can rotate 360 degrees around the self axis, the spray arm 20 is driven by a motor, and can realize regional washing and fixed-point washing, the technical scheme provided by the utility model is that the spray arm 20 is driven by a motor, a gear and rack transmission structure, the two spray arms 20 are symmetrical in structure, the transmission scheme can be divided into 3 layers, and each layer is driven by a rack and a gear. In order to drive the spray arm 20, the utility model provides a drive device for the spray arm 20, by means of which the spray arm 20 can be driven in rotation.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

As shown in fig. 1 to 20, a driving apparatus for a spray arm 20 according to an embodiment of the present invention includes: seat 11, rotating part 12, transmission 13, transmission shaft 14 and driving part 15. Wherein, the base body 11 can provide support for the driving device, the rotating part 12 is used for connecting the spray arm 20, and in the rotating process of the rotating part 12, the spray arm 20 will be driven to rotate, and the combination of the transmission part 13 and the transmission shaft 14 is suitable for transmitting the power of the driving part 15 to the rotating part 12, so as to realize that the rotating part 12 (spray arm 20) is driven to rotate by the driving part 15.

Specifically, the rotating element 12 is disposed on the base 11, and the rotating element 12 is rotatable relative to the base 11, the rotating element 12 can be used to connect with the spray arm 20, when the spray arm 20 is connected to the driving device, the spray arm 20 is connected with the rotating element 12, and during the rotation of the rotating element 12, the spray arm 20 is driven to rotate. The transmission piece 13 is disposed on the base 11, and the transmission piece 13 is movable relative to the base 11, the transmission piece 13 can be in transmission connection with the rotating piece 12, the rotating piece 12 can be driven to rotate by the movement of the transmission piece 13, that is, the movement of the transmission piece 13 is converted into the rotation of the rotating piece 12, and the transmission piece 13 can perform translation or a combination action of translation and rotation, and the like. The transmission shaft 14 is disposed on the base 11, and the transmission shaft 14 is rotatable relative to the base 11, the transmission shaft 14 can be in transmission connection with the transmission member 13, and the transmission member 13 can be driven to move by the rotation of the transmission shaft 14. The driving member 15 can be in transmission connection with the transmission shaft 14, and the driving member 15 can drive the transmission shaft 14 to rotate.

In the use process of the driving device, the driving part 15 can drive the transmission shaft 14 to rotate, the transmission part 13 is connected with the transmission shaft 14, so that the transmission shaft 14 transmits the power of the driving part 15 to the transmission part 13, and the transmission part 13 is connected with the rotating part 12, so that the power of the driving part 15 is transmitted to the rotating part 12 through the transmission part 13, wherein, in the power transmission process, the rotating motion of the transmission shaft 14 is converted into the movement of the transmission part 13, and the movement of the transmission part 13 is converted into the rotation of the rotating part 12.

According to the driving device for the spray arm 20 provided by the embodiment of the utility model, the directional or fixed-range flushing can be realized through the driving action of the driving part 15, and in the power transmission process, the transmission mode of rotation → movement → rotation is adopted, so that the arrangement of each element can be facilitated, the requirement on the position relation among all parts is reduced, and the application range and the applicability of the driving device are improved.

In addition, in the present invention, in the transmission process through rotation → movement → rotation, the driving of the spray arm 20 with a smaller torque can be realized by setting the transmission at each stage, so that the driving of the spray arm 20 is more labor-saving, and the driving of the plurality of rotary members 12 and the spray arm 20 can also be realized by the driving member 15, of course, the driving device in the present invention may be used for driving only one rotary member 12 or spray arm 20.

The spray arm 20 may be disposed with the end portion connected to the rotating member 12, and of course, other positions (e.g., the middle portion) of the spray arm 20 may be connected to the rotating member 12. The spray arm 20 of the present invention may be provided in a straight tubular shape, and the driving means may be used to drive the spray arm 20 to rotate about the central axis of the spray arm 20. Of course, the rotation of the spray arm 20 about other axes can also be achieved by means of the rotor 12. In addition, the spray arm 20 of the present invention may be provided with a nozzle, a channel, etc., so that the driving device of the present invention may be provided with a corresponding water distribution member 16 to supply water, detergent, etc. to the spray arm 20, the water distribution member 16 of the present invention may have different forms, and the present invention also provides a water distribution structure of a specific embodiment, thereby effectively improving the stability and the practicability of the spray arm 20 in the processes of spraying water, cleaning, etc.

In the present invention, the driving member 15 drives the transmission shaft 14 to rotate, and may be configured such that the driving member 15 drives the transmission shaft 14 to rotate around the central axis of the transmission shaft 14, and the transmission member 13, the transmission shaft 14, the rotating member 12, and the transmission member 13 may be configured in different orientations, for example, the transmission shaft 14 is configured to be parallel to the central axis of the rotating member 12. Of course, in order to further improve the practicability and the application range of the driving device in the application, the driving device of the utility model is provided with a specific embodiment.

Referring to fig. 1 to 20, in some embodiments of the present invention, the central rotation axis of the rotating component 12 extends in a longitudinal direction, the transmission component 13 is movably disposed on the seat 11 in a transverse direction, and the transmission shaft 14 extends in a vertical direction. For convenience of understanding, the longitudinal direction, the transverse direction and the vertical direction in the present invention may be perpendicular to each other, and it should be noted that the longitudinal direction, the transverse direction and the vertical direction in the present invention are not necessarily perpendicular to each other, and they may have other included angles, for example, the transverse direction and the vertical direction are set to have an included angle between 0 ° and 90 °, the longitudinal direction is set to be perpendicular to the transverse direction and the vertical direction, and the like.

In an embodiment of the present invention, the longitudinal direction may be a front-back direction, the transverse direction may be a left-right direction, and the vertical direction may be an up-down direction, and of course, the transverse direction, the vertical direction, and the longitudinal direction in the present invention may also be set in other forms.

In the foregoing embodiment, the rotation central axes of the transmission shaft 14 and the rotation member 12 are arranged in a substantially vertical form, and the transmission of power is realized by the movement of the transmission member 13, the transmission shaft 14, the transmission member 13 and the rotation member 12 can be similarly moved on the same plane (a plane composed of a horizontal direction and a vertical direction), the thickness (the size in the longitudinal direction) of the driving device can be greatly reduced, when the driving device is applied to a dishwasher, the driving device can be arranged at the positions of the side wall, the top wall, the back plate and the bottom plate 111 of the dishwasher, at this time, each wall of the dishwasher will have a large enough area to accommodate the driving device, and the thickness of the driving device is also small, so that the occupied space of the driving device can be greatly reduced, and the space utilization rate can be improved.

In addition, the power transmission of the driving part 15 is realized through the transmission of the transmission shaft 14, and the transmission part 13 extends vertically, so that the power transmission of the transmission shaft 14 to the transmission parts 13 and the rotating parts 12 can be realized by arranging the transmission parts 13 and the rotating parts 12 vertically, the structure of the driving device is effectively simplified, and a more complete embodiment is provided in the following.

In addition, in the present invention, the driving member 15 needs to provide power for the whole driving device, and the driving member 15 has a large influence on the driving device, so that the driving member 15 can be arranged at one end of the seat body 11 along the vertical direction in the present invention, and the washing space of the dishwasher occupied by the motor can be reduced. Specifically, when the driving device is applied to a dishwasher, the driving device may be disposed on a wall of the dishwasher (or may be disposed at another position), and an intermediate position of the driving device corresponds to a central region of the dishwasher, which has a relatively large influence on a washing space in the dishwasher, so that the driving member 15 is disposed at one end of the seat body 11 along the vertical direction, so as to reduce the influence of the driving member 15 on the washing space in the dishwasher. The driving member 15 in the present invention may be a motor, generally, the circumferential length of the motor is greater than the radial size of the motor, the motor is disposed at one vertical end of the seat 11 in the present invention, and the motor and the transmission shaft 14 are coaxially disposed to reduce the occupied space of the motor, so as to further improve the space utilization.

Of course, it will be understood by those skilled in the art that there are numerous embodiments in the art to achieve the rotation of the transmission shaft 14, and the above description of the present invention has been made by configuring the driving member 15 as a motor, which is only one embodiment of the present invention and is not intended to limit the scope of the present invention.

Similarly, the transmission structure of the transmission shaft 14 and the transmission member 13, and the transmission mechanism of the transmission member 13 and the rotating member 12 in the present invention can be in various forms, such as by a link mechanism, a slider mechanism, etc., of course, other transmission mechanisms in the prior art can also be adopted in the present invention, and in the following description of the present invention, the power transmission from rotation to movement and from movement to conversion is mainly realized by a rack-and-pinion mechanism, which is mainly for the purpose of fully explaining the technical solution of the present application, and is not a limitation to the scope of the present invention.

Alternatively, in the present invention, a plurality of transmission members may be connected by one transmission shaft so that the plurality of transmission members are transmitted by one transmission shaft, that is, the power of the driving member is transmitted to the plurality of transmission members by one transmission shaft. Particularly, can set up a plurality of driving mediums of arranging along vertical interval on the pedestal, a transmission shaft is connected with a plurality of driving medium transmissions, can connect a plurality of driving mediums through a transmission shaft like this, realizes driving a plurality of driving mediums through a transmission shaft and removes. In addition, each transmission part can be in transmission connection with at least one rotating part, so that the rotation of the rotating parts can be realized through one transmission shaft, the driving of the spraying arms is further realized, and the structure of the driving device is simplified.

In addition, the utility model can also connect a plurality of transmission parts through a plurality of transmission shafts, and drive a plurality of transmission parts through a plurality of transmission shafts, wherein a plurality of transmission shafts can be driven by the same motor, and a plurality of transmission shafts can also be driven by different motors. Particularly, can set up a plurality of driving mediums of vertical arranging along on the pedestal, a plurality of driving mediums can be mutual spaced arrange to set up a plurality of transmission shafts, a plurality of transmission shafts can be connected with the transmission of a plurality of driving mediums correspondingly, every driving medium all with at least one rotation transmission connection. Like this can connect a plurality of driving mediums through a plurality of transmission shafts, realize driving a plurality of driving mediums through a plurality of transmission shafts and remove. In addition, every driving medium all can rotate the transmission with at least one and be connected, consequently, can realize the rotation of a plurality of rotation pieces through a plurality of transmission shafts, and then realize the drive to a plurality of spray arms.

The transmission shafts and the transmission pieces can be in one-to-one transmission connection, and the number of the transmission shafts and the transmission pieces can be different, for example, three transmission pieces, two transmission shafts and the like are arranged. When a plurality of transmission shafts are provided, each of the plurality of transmission shafts can be used for driving one or more transmission members.

Alternatively, a transmission member in the present invention may be configured to drive a plurality of rotation members, that is, after one transmission member is driven by the driving member and the transmission shaft, the transmission member may drive the plurality of rotation members to rotate, so as to drive the plurality of spray arms. Optionally, the middle part of the transmission member in the transverse direction may be in transmission connection with the transmission shaft, and both ends of the transmission member in the transverse direction are in transmission connection with at least one rotating member, so as to transmit with a plurality of rotating members through one transmission member. In addition, the part of the transmission part in transmission connection with the rotating part and the part of the transmission part in connection with the transmission shaft can be respectively arranged on the transmission part along the transverse direction. Of course, in the utility model, the stability of the driving device can be improved by the transmission between the two end parts of the transmission piece and the rotating piece and the transmission between the middle part of the transmission piece and the transmission shaft.

As shown in fig. 2, 8 and 11, in some embodiments of the present invention, the transmission shaft 14 may include a shaft portion 141, the shaft portion may be in transmission connection with the driving member, the transmission member 13 may include a first rack 131, the first rack 131 and the first gear 142 may be engaged with each other, and the rotation of the first gear 142 may be transmitted to the first rack 131 to realize the transmission of the rotation motion of the transmission shaft 14 to the transmission member 13 and the movement of the transmission shaft 14. The shaft 141 may be coaxially connected to the first gear 142, and the rotation of the transmission shaft 14 may be conveniently converted into the movement of the transmission member 13 through the transmission of the rack and pinion, so as to improve the stability and transmission efficiency of power transmission.

In addition, the drive shaft 14 of the present invention may be a hollow shaft or a solid shaft.

Alternatively, as shown in fig. 8, the transmission member 13 may further include a first stop bar 132, the first stop bar 132 may be disposed in parallel with the first rack 131, the gear teeth of the first rack 131 may be disposed on a side of the first rack 131 facing the first stop bar 132, that is, the gear teeth of the first rack 131 face a space between the first rack 131 and the first stop bar 132, the first gear 142 is disposed between the first stop bar 132 and the first rack 131, and the first gear 142 may rotate, during a use process, the first gear 142 may perform a rotational motion, and since the first gear 142 is engaged with the first rack 131, the first rack 131 may be driven to move by the rotation of the first gear 142, so that the first gear 142 may rotate relative to the first rack 131, and the first gear 142 may move relative to the first rack 131 along an extending direction of the first rack 131. Through setting up the backstop strip, can realize spacing first gear 142, avoid first gear 142 and first rack 131 to break away from the meshing, realized the stable transmission of power between first rack 131 and the first gear 142, improve the stability of power transmission between transmission shaft 14 and the driving medium 13.

Alternatively, the present invention may realize transmission of a plurality of transmission portions through one transmission shaft 14, for example, a plurality of first gears 142 may be disposed on the shaft portion 141 of the present invention, the plurality of first gears 142 may be coaxially connected with the shaft portion, and the plurality of first gears 142 may be disposed along the axial direction of the shaft portion 141, wherein the plurality of first gears may be fixedly connected with the same shaft portion, so that power is transmitted to the plurality of first gears through one shaft portion. The transmission member 13 may include a plurality of transmission members 13 arranged corresponding to the plurality of first gears 142. Like this, in the use, a plurality of first gears 142 on the transmission shaft 14 can be used for driving different driving medium 13 respectively, and every driving medium 13 all can be used for corresponding drive one or more rotation piece 12, through a plurality of first gears 142 that set up on transmission shaft 14, can realize the drive to a plurality of transmission portions, and then realize the rotatory purpose of a plurality of spray arms 20 of drive.

The plurality of transmission members and the plurality of first gears 142 may be arranged in a one-to-one correspondence, and the number of the transmission members and the number of the first gears may be different, for example, three transmission members, two first gears 142, and the like are provided.

Wherein, every driving medium all can connect at least one rotation piece correspondingly, that is to say, every driving medium all corresponds the transmission and connects at least one rotation piece, and like this, a plurality of driving mediums will be used for realizing the transmission of a plurality of rotation pieces, and then realize the rotatory purpose of a plurality of spray arms of drive.

The plurality of first gears 142 may be provided on the shaft 141 integrally, or the shaft 141 may be formed by splicing a plurality of shaft segments, and the first gears 142 may be provided on at least two different shaft segments. Further, the first gear 142 may be formed integrally with the shaft portion 141, and if a plurality of first gears 142 are provided on the first shaft portion 141, at least a part of the plurality of first gears 142 may be formed integrally with the first shaft portion 141. Of course, the transmission shaft 14 of the present invention can be provided in other forms, the above description of the present invention is only a few specific embodiments of the present invention, and is not intended to limit the scope of the present invention, and the structure of the transmission shaft 14 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 20, one end of the shaft 141 may be connected to the driving member 15, the other end of the shaft 141 may be provided with a first gear 142, the first gear 142 may be provided separately from the shaft 141, and the first gear 142 is connected to the shaft 141, and the first gear 142 and the shaft 141 are relatively fixed in the circumferential direction of the shaft 141, or the first gear and the shaft are provided separately and fixedly connected. That is, the first gear 142 is formed separately from the shaft 141 and connected to the shaft 141, and the first gear 142 is driven to rotate by the shaft 141. Wherein the first gear 142 is formed separately from the shaft 141, so that the structure of the shaft 141 is simplified, the efficiency of forming the shaft 141 is improved, and, during actual use of the propeller shaft 14, the manufacturing and mounting accuracies at various places on the shaft portion 141 are superimposed, since one end of the shaft portion 141 is connected to the driving member 15, in order to ensure the stability of the connection of the shaft portion 141 and the driving member 15, the precision of the fit between the shaft portion 141 and the driving member 15 needs to be ensured, therefore, the manufacturing accuracy of the shaft portion 141 and the fitting accuracy of the shaft portion 141 and the first gear 142 are superposed on each other at the other end of the shaft portion 141, therefore, in the present invention, the first gear 142 at the other end of the shaft 141 is mounted together after being provided separately from the shaft 141, the installation of the transmission shaft 14 can be facilitated, the installation efficiency of the transmission shaft 14 is improved, and the problem that the transmission shaft 14 cannot be installed in place or is difficult to install due to the manufacturing and assembling precision is avoided.

The other end of the shaft 141 may be configured to be non-circular column-shaped (for example, the cross section is D-shaped, arched, or quincunx), and the first gear 142 at the other end of the shaft 141 may be configured with a hole corresponding to the structure and size, so that the shaft 141 and the first gear 142 are stably connected by matching the shaft hole of the shaft 141 and the shaft hole of the first gear 142, and the shaft 141 and the first gear 142 are conveniently driven to rotate by the shaft 141, and in addition, the shaft 141 and the first gear 142 may be configured to be in interference fit, so as to stably connect the shaft 141 and the first gear 142.

Optionally, the driving element of the present invention may be disposed on the seat body, so as to facilitate integration of the driving device, simplify the driving element, and facilitate installation of the driving element.

In addition, the transmission shaft 14 of the present invention is installed on the seat body 11, and for this reason, the present invention provides a corresponding installation structure on the seat body 11.

Referring to fig. 6, in some embodiments of the present invention, a positioning groove 1101 may be formed on the housing 11, the positioning groove 1101 may extend in the same direction as the transmission shaft 14, the transmission shaft 14 may be inserted into the positioning groove 1101, and the transmission shaft 14 may rotate. So that the transmission shaft 14 can be stably installed on the housing 11 and stable rotation of the transmission shaft 14 can be facilitated to transmit the power of the driving member 15 to the transmission member 13. In addition, the thickness of the driving device can be further reduced.

Optionally, with reference to fig. 4 and fig. 6, the seat body 11 includes a bottom plate 111, a first rib 112 and a second rib 113, the first rib 112 is connected to the bottom plate 111, the second rib 113 is connected to the bottom plate 111, and the first rib 112 and the second rib 113 are disposed opposite to each other, and a gap is formed between the first rib 112 and the second rib 113, so that a positioning slot 1101 is formed between the first rib 112 and the second rib 113. Of course, a recessed structure may be formed on the bottom plate 111, so that the positioning groove 1101 is formed in the recessed structure. In addition, the transmission shaft 14 of the present invention may be configured to be partially inserted into the positioning groove 1101, or the entire transmission shaft 14 may be inserted into the positioning groove 1101, that is, the transmission shaft 14 protrudes out of the positioning groove 1101.

In order to further improve the stability of the transmission shaft 14, a snap structure 114 may be disposed on the seat body 11 to position the transmission shaft 14, for example, the snap structure 114 is disposed on the seat body 11, and the transmission shaft 14 is rotatably clamped to the snap structure 114, so as to position the transmission shaft 14; in addition, the fastening structure 114 may be provided on the seat body 11, the annular groove 1401 is provided on the transmission shaft 14, and the transmission shaft 14 may be positioned by fastening the fastening structure 114 and the annular groove 1401. Of course, the present invention can also combine the snap structure 114 with the positioning slot 1101 to further improve the installation efficiency and stability of the transmission shaft 14.

In the present invention, a first protruding ring and a second protruding ring may be provided on the outer circumferential surface of the drive shaft 14, spaced apart in the extending direction of the drive shaft 14, and defining an annular groove.

Referring to fig. 4 and 6, in some embodiments of the present invention, a snap structure 114 may be disposed in the positioning groove 1101, an annular groove 1401 may be disposed on the circumferential surface of the transmission shaft 14, and the annular groove 1401 may be snapped with the snap structure 114 to position the transmission shaft 14 and enable the transmission shaft 14 to rotate. The snap structure 114 of the present invention may be provided in a ring shape having an opening, and the opening size of the snap structure 114 is smaller than the maximum radial size in the snap structure 114, so that a shape in which the opening size is small and the width size is gradually increased from a portion inward of the opening of the snap structure 114 is formed in the snap structure 114, so that the transmission shaft 14 can be stably mounted on the housing body 11. In addition, the shape and size of the snap structure 114 in the present invention may be equivalent to the shape and size of the inner bottom surface of the annular groove 1401, and the width size of the snap structure may also be set to be equivalent to the width size of the annular groove 1401, for example, the snap structure 114 may be transitionally fitted with the annular groove 1401 along the width direction, so as to realize the positioning of the snap structure 114 on the transmission shaft 14 in the axial direction, and effectively improve the stability of the fit of the transmission shaft 14 and the transmission piece 13.

In addition, as described above, the positioning groove 1101 is arranged on the seat body 11 in the present invention, so as to facilitate the installation of the transmission shaft 14, one side of the positioning groove 1101 is open, and the opposite sides of the positioning groove 1101 have elastic deformation capability, so as to facilitate the installation of the transmission shaft 14, but the elastic deformation capability of the opposite sides of the positioning groove 1101 may affect the stability of the operation of the transmission shaft 14, for this reason, the fixing member 17 is arranged on the seat body 11 in the present invention, and by means of the fixing member 17, the closing of the open side of the positioning groove 1101 can be realized, so as to realize the stable installation of the transmission shaft 14. Specifically, in some embodiments of the present invention, a fixing member 17 may be disposed on the housing 11, the fixing member 17 may be connected to the housing 11, and the fixing member 17 may be disposed to close the positioning slot 1101.

In addition, in combination with the previous embodiment, the positioning slot 1101 may be configured by the first rib 112 and the second rib 113 disposed oppositely, therefore, in combination with fig. 4 to 14, the fixing member 17 of the present invention may include a baffle plate 171, a first flange 172 and a second flange 173, wherein the first flange 172 and the second flange 173 may be respectively connected to two opposite side edges of the baffle plate 171, so that the fixing member 17 forms a structure with a substantially C-shaped or U-shaped cross section. Specifically, the baffle 171 may cover the positioning groove 1101, the first flange 172 may be disposed on the outer sides of the first rib 112 and the second rib 113, and the second flange 173 may be disposed on the outer sides of the first rib 112 and the second rib 113, respectively, for example, the first flange 172 is disposed on the side of the first rib 112 departing from the second rib 113, and the second flange 173 is disposed on the side of the second rib 113 departing from the first rib 112, so as to cover the positioning groove 1101 through the fixing member 17.

In addition, the outer side surface of the first rib 112 is provided with a first buckling portion 1102, the outer side surface of the second rib 113 is also provided with a first buckling portion 1102, in addition, the first flange 172 is provided with a second buckling portion 175, and the second flange 173 is also provided with a second buckling portion 175, so that when the fixing member 17 is buckled on the positioning groove 1101, the second buckling portion 175 on the first flange 172 can be buckled with the first buckling portion 1102 on the first rib 112, and the second buckling portion 175 on the second flange 173 can also be buckled with the second buckling portion 175 on the second rib 113, thereby realizing the stable installation of the fixing member 17 and the seat body 11.

In addition, in order to further improve the assembly efficiency of the fixing member 17 and the seat body 11, in the present invention, the spring plate 174 structure may be disposed on the seat body 11 and/or the fixing member 17, and the first fastening portion 1102 or the second fastening portion 175 is disposed on the spring plate 174, so that, in the process of installing the fixing member 17, the spring plate 174 may have an elastic deformation capability, so as to facilitate the rapid installation of the fixing member 17, and when it is required to disassemble, the deformation capability of the spring plate 174 may also improve the convenience of disassembling the fixing member 17, thereby facilitating the maintenance of the driving device. As mentioned above, the elastic sheet 174 of the present invention can be disposed on the seat body 11 or on the fixing member 17. With reference to the foregoing embodiment, when the resilient tab 174 is disposed on the seat body 11, the resilient tab 174 may be disposed on the first rib 112 and/or the second rib 113, and the first fastening portion 1102 is disposed on the resilient tab 174. Of course, the spring piece 174 may be disposed on both the fixing member 17 and the seat body 11. In addition, the utility model also provides a specific implementation mode.

In combination with the previous embodiment, the first flange 172 includes a spring plate 174, the second flange 173 also includes a spring plate 174, and the spring plate 174 may be provided with a second locking portion 175.

In addition, in the present invention, one of the first locking portion 1102 and the second locking portion 175 includes a locking hole and the other includes a locking protrusion, and the locking protrusion is correspondingly locked with the locking hole. For example, the first locking portion 1102 includes a locking hole, the second locking portion 175 includes a locking protrusion, and the locking protrusion is correspondingly locked with the locking hole; for another example, the first locking portion 1102 includes a locking protrusion, the second locking portion 175 includes a locking hole, and the locking protrusion is correspondingly locked with the locking hole; for another example, the first locking portion 1102 includes a locking protrusion and a locking hole, the second locking portion 175 includes a locking protrusion and a locking hole, the locking protrusion of the first locking portion 1102 is correspondingly locked with the locking hole of the second locking portion 175, and the locking hole of the first locking portion 1102 is correspondingly locked with the locking protrusion of the second locking portion 175.

In addition, in combination with the previous embodiment, the first flange 172 and the second flange 173 of the present invention may be embedded inside the first and second ribs 113. The fixing part 17 and the seat body 11 can be positioned by other positioning structures, so that the transmission shaft can be stably positioned.

The transmission member 13 and the rotating member 12 in the present invention may also adopt a rack and pinion transmission form.

With reference to fig. 3, 4, 5, 7, 9 and so on, in some embodiments of the present invention, the rotation member 12 may include a second gear 121, the transmission member 13 may include a second rack 133, the second gear 121 and the second rack 133 may be engaged with each other, and the rotation of the second rack 133 may be transmitted to the second gear 121, so as to transmit the moving motion of the transmission member 13 to the rotation member 12 and to realize the rotation of the rotation member 12. Wherein, through the transmission of rack and pinion, can conveniently convert the removal of driving medium 13 into the rotation of rotating piece 12 to improve power transmission's stability and transmission efficiency.

Optionally, the transmission member 13 may further include a second stop bar 134, the second stop bar 134 may be disposed in parallel with the second rack bar 133, the teeth of the second rack bar 133 may be disposed on a side of the second rack bar 133 facing the second stop bar 134, that is, the teeth of the second rack bar 133 face a space between the second rack bar 133 and the second stop bar 134, the second gear 121 is disposed between the second stop bar 134 and the second rack bar 133, and the second gear 121 may be movable and rotatable. During use, the second rack 133 will move, and since the second gear 121 is engaged with the second rack 133, the second rack 133 will be moved to drive the second gear 121 to rotate, so that the second gear 121 can rotate relative to the second rack 133, and the second gear 121 is movable relative to the second rack 133 along the extending direction of the second rack 133. Through setting up the backstop strip, can realize spacing second gear 121, avoid second gear 121 and second rack 133 to break away from the meshing, realized the stable transmission of power between second rack 133 and the second gear 121, improve the stability of power transmission between driving medium 13 and the rotation piece 12.

Alternatively, referring to fig. 15 to 20, the present invention may realize the transmission of the plurality of rotation members 12 by one transmission member 13, for example, the transmission member 13 of the present invention includes a plurality of second racks 133, and the plurality of second racks 133 are arranged corresponding to the plurality of second gears 121. Thus, in the using process, the plurality of second racks 133 on the transmission member 13 can be respectively used for driving different rotating members 12, each second rack 133 can be used for correspondingly driving one or more rotating members 12, and the plurality of second racks 133 arranged on the transmission member 13 can drive the plurality of rotating members 12, so as to drive the plurality of spray arms 20 to rotate.

The plurality of second racks 133 in the present invention may be provided as an integral structure, or the transmission member 13 may be formed by splicing a plurality of parts. The plurality of second racks 133 in the present invention may be disposed parallel to each other, and the extending directions thereof are overlapped with each other to form an included angle, and the structure and shape of the transmission member 13 may be set according to different driving requirements. Of course, the transmission member 13 of the present invention can be provided in other forms, the above description of the present invention is only a few specific embodiments of the present invention, and is not intended to limit the scope of the present invention, and the structure of the transmission shaft 14 of one embodiment of the present invention is described below with reference to the accompanying drawings.

In combination with the foregoing embodiment, the transmission member 13 includes the first rack 131 and the second rack 133, the first rack 131 is used for receiving the power of the transmission shaft 14, and the second rack 133 is used for outputting the power to the rotation member 12, so that the stable output of the power can be realized through the transmission member 13.

Alternatively, the transmission member 13 may include a plurality of second racks 133, and the plurality of second racks 133 may be respectively used to drive the rotation member 12, so that the transmission member 13 may rotate the plurality of spray arms 20.

With reference to fig. 4 and 5, optionally, a guide groove 1103 may be disposed on the seat body 11, the transmission member 13 may be embedded in the guide groove 1103, and the transmission member 13 may be movable along the extending direction of the guide groove 1103. So that the transmission member 13 can be stably installed on the seat body 11 and the transmission member 13 can be facilitated to stably transmit rotation so as to transmit the power of the driving member 15 to the rotating member 12. In addition, the thickness of the driving device can be further reduced.

Alternatively, the guide groove 1103 may be provided with support blocks 1104 on opposite sides thereof, and the support blocks 1104 may be used to support the movement of the driving member 13. Thus, the surface contact between the transmission member 13 and the guide groove 1103 is converted into the point contact between the transmission member 13 and the support block 1104, or the contact area between the transmission member 13 and the guide groove 1103 is reduced, so that the problem that the movement of the transmission member 13 is influenced by the overlarge contact surface is reduced, and the guide groove 1103 can also have a certain limiting function, thereby further improving the stability of the movement of the transmission member 13.

Alternatively, the transmission piece 13 is constructed as a one-piece structure. As mentioned above, the transmission member 13 includes a first portion in transmission connection with the transmission shaft and a second portion in transmission connection with the rotation member 12, and the first portion and the second portion in the present application can be inherited, so that the structural strength of the transmission member 13 is effectively improved, and stable power transmission is facilitated.

The first part and the second part can be integrally formed, and the first part and the second part can be mounted together after being formed respectively. Wherein, as mentioned above, the second portion may include a plurality of, for example, one or more second portions respectively connected to opposite ends of the first portion in the extending direction; it is also possible to connect a plurality of second portions in sequence at one end in the extending direction of the first portion, wherein, in connection with the foregoing embodiment, the first portion may be the first rack 131 and the second portion may be the second rack 133.

Optionally, in combination with the foregoing description, the transmission member may include a first rack and a second rack, the first rack is in transmission with the transmission shaft, the transmission shaft may include a first gear, the first rack may be engaged with the first gear, and the transmission of the first rack and the transmission shaft is realized through the engagement of the first rack and the first gear. The second rack and the rotating part are in transmission, the rotating part can comprise a second gear, the second rack can be meshed with the second gear, and transmission of the second rack and the rotating part is achieved through meshing of the second rack and the second gear. The first and second racks may each extend in the lateral direction.

In addition, the gear teeth of the first rack and the gear teeth of the second rack can be perpendicular to each other. The transmission shaft can extend vertically, and the first gear is coaxially connected with the transmission shaft, so that the gear teeth of the first rack can be in a shape extending vertically; the rotation central axis of the rotation member may extend in a longitudinal direction, and the second gear may be engaged with the second rack gear, and thus, the gear teeth of the second rack gear may be in a form extending in the longitudinal direction such that the gear teeth of the second rack gear are perpendicular to the gear teeth of the first rack gear.

Optionally, two ends of the first rack in the transverse direction are respectively connected with one second rack, and each second rack is meshed with at least one second gear.

In addition, the base 11 of the present invention is provided with a support bar 1105, and the rotating member 12 is rotatably supported on the support bar 1105. Therefore, the effective positioning of the rotating member 12 is realized, specifically, one end of the supporting rod 1105 in the present invention is fixedly connected to the bottom plate 111 on the base 11, and one end of the fixing rod connected to the bottom plate 111 may be provided with a reinforcing structure, for example, a reinforcing rib is connected between the fixing rod and the bottom plate 111, one end of the fixing rod is thickened and then connected to the bottom plate 111, so as to realize the stable connection of the fixing rod and the bottom plate 111, while the other end of the fixing rod may be configured in a shape with gradually reduced size, that is, the other end of the fixing rod is configured in a pointed shape. And the last correspondence that rotates piece 12 has set up the cooperation groove, can make things convenient for the stable rapid match in dead lever and cooperation groove like this, realizes rotating the stable installation of piece 12.

In addition, the other side of the rotation member 12 may be provided with a connection structure for connecting the spray arm 20, the connection structure may be provided in a non-circular rod shape, and a structure corresponding to the non-circular rod may be provided on the end surface of the spray arm 20, so that stable connection between the rotation member 12 and the spray arm 20 is achieved, and the power transmission effect of the rotation member 12 to the spray arm 20 is improved.

In addition, the driving device of the present invention is used to connect and drive the spray arm 20, for which water is required to supply the spray arm 20, and therefore, the driving device of the present invention may further include a water supply mechanism, for example, in some embodiments of the present invention, the driving device further includes a water distribution member 16, the water distribution member 16 is connected to the base body 11, and the water distribution member 16 is configured to supply water to the spray arm 20. The water spray of the spray arm 20 is realized by the water supply of the spray arm 20 through the water distribution member 16, so as to facilitate the cleaning.

Alternatively, referring to fig. 12 and 20, the water distribution member 16 may include a sleeve 161 adapted to be sleeved on the spray arm 20, and a boss 162 may be disposed on a peripheral wall of the sleeve 161, the boss 162 may be disposed along a circumferential direction of the sleeve 161, and the boss 162 may be used to support the spray arm 20. Wherein, the boss 162 may be provided in an annular shape such that the boss 162 may support the outer circumferential surface of the spray arm 20; in addition, the bosses 162 may be provided in plural numbers spaced apart in the circumferential direction of the boss 161, and the support of the nozzle arm 20 is also achieved. In addition, the sleeve 161 has a water hole in its circumferential wall. In this way, water can enter the space between the spray arm 20 and the sleeve 161 through the water holes on the peripheral wall of the sleeve 161, and in addition, corresponding holes can be arranged on the peripheral wall of the end part of the spray arm 20, so that the water in the space between the spray arm 20 and the sleeve 161 can enter the spray arm 20, and the water supply for the spray arm 20 is realized.

Of course, the water distributing member 16 of the present invention can be provided in other forms, such as a form of water feeding along the axial direction of the spray arm 20, and the sleeve 161 and the spray arm 20 of the present invention can be coaxially arranged, and the spray arm 20 can also be eccentrically arranged with the sleeve 161.

It should be noted that the water distributing member 16 and the rotating member 12 of the present invention can be connected to the same end of the spray arm 20, so as to realize the connection with the same end of the spray arm 20 through the driving device, and realize the water feeding and driving of the spray arm 20, so as to simplify the structure of the driving device and simplify the connection structure between the driving device and the spray arm 20.

In addition, the utility model also provides a spray arm assembly 100, and the spray arm assembly 100 can comprise the driving device.

Specifically, referring to fig. 1 to 20, the spray arm assembly 100 according to an embodiment of the present invention may include a driving device and the spray arm 20, the driving device may be the driving device for the spray arm 20 according to the foregoing, and the spray arm 20 may be coaxially connected to the rotation member 12.

According to the spray arm assembly 100 of the embodiment of the utility model, the directional or fixed-range flushing can be realized through the driving action of the driving part 15, and in the power transmission process, the transmission mode of rotation → movement → rotation is adopted, so that the arrangement of each element can be facilitated, the requirement on the position relation among all parts is reduced, and the application range and the applicability of the driving device are improved.

Wherein, as mentioned before, drive arrangement has still included the distribution spare, supplies water to the spray arm through the distribution spare, and wherein, the one end and the rotation piece transmission of spray arm are connected, and this end and the distribution spare cooperation of spray arm are in order to be suitable for by the water distribution spare water supply.

In addition, the utility model also provides a seat body which is suitable for the driving device for the spray arm.

Wherein, the pedestal can be provided with the guide groove, and the guide groove can be along transversely extending, and the guide groove can be constructed and be suitable for holding the driving medium, and the guide groove is still suitable for guiding the driving medium along transverse movement. In other words, referring to fig. 4 and 5, the seat body 11 may be provided with a guide groove 1103, the guide groove 1103 is adapted to be embedded in the transmission member 13, and the guide groove 1103 is adapted to move the transmission member 13. So that the transmission member 13 can be stably installed on the seat body 11 and the transmission member 13 can be facilitated to stably transmit rotation so as to transmit the power of the driving member 15 to the rotating member 12. In addition, the thickness of the driving device can be further reduced.

Optionally, can set up a guiding groove on the pedestal, also can set up a plurality of guiding grooves, when having set up a plurality of guiding grooves on the pedestal, a plurality of guiding grooves can be along vertical interval arrange locate on the pedestal.

Optionally, the seat body may further be provided with a positioning groove, the positioning groove may extend vertically, the guide groove and the positioning groove may intersect and communicate, the positioning groove may be configured to accommodate the transmission shaft, and the positioning groove is adapted to rotate the transmission shaft.

In the driving device with the seat body, the positioning groove 1101 may extend in the same direction as the transmission shaft 14, the transmission shaft 14 may be embedded in the positioning groove 1101, and the transmission shaft 14 may rotate. So that the transmission shaft 14 can be stably installed on the housing 11 and stable rotation of the transmission shaft 14 can be facilitated to transmit the power of the driving member 15 to the transmission member 13. In addition, the thickness of the driving device can be further reduced.

Optionally, the base includes a bottom plate, and a first rib and a second rib provided on the bottom plate, the first rib and the second rib vertically extend and are laterally spaced apart to form a positioning groove. Optionally, with reference to fig. 4 and fig. 6, the seat body 11 includes a bottom plate 111, a first rib 112 and a second rib 113, the first rib 112 is connected to the bottom plate 111, the second rib 113 is connected to the bottom plate 111, and the first rib 112 and the second rib 113 are disposed opposite to each other, and a gap is formed between the first rib 112 and the second rib 113, so that a positioning slot 1101 is formed between the first rib 112 and the second rib 113. Of course, a recessed structure may be formed on the bottom plate 111, so that the positioning groove 1101 is formed in the recessed structure. In addition, the transmission shaft 14 of the present invention may be configured to be partially inserted into the positioning groove 1101, or the entire transmission shaft 14 may be inserted into the positioning groove 1101, that is, the transmission shaft 14 protrudes out of the positioning groove 1101.

In addition, the seat body can also comprise a third rib and a fourth rib, and the third rib and the fourth rib extend along the transverse direction and are vertically spaced to form a guide groove. With reference to the drawings, the seat body 11 may further include a third rib and a fourth rib, the third rib and the fourth rib extend along the left-right direction, the third rib and the fourth rib are spaced apart along the up-down direction, and a guide groove 1103 is defined between the third rib and the fourth rib.

Optionally, the support blocks 1104 are disposed on inner side surfaces of the third rib and the fourth rib, the bottom plate 111 is further provided with a support rod 1105, the support rod 1105 is disposed in the guide groove 1103, the support rod 1105 is located between the third rib and the fourth rib, wherein the positioning groove 1101 is communicated with the guide groove 1103, the third rib and the fourth rib are disposed on the front surface of the bottom plate 111, the top of the seat body 11 is provided with a mounting piece, and the mounting piece is connected with the bottom plate 111 and extends backwards. The left and right side edges of the bottom plate 111 can be provided with side plates.

Optionally, the positioning groove is arranged in the middle of the seat body along the transverse direction. Thereby improving the driving stability of the driving device with the seat body.

In addition, the utility model also provides a dishwasher. The dishwasher may also comprise the aforementioned drive means.

The dishwasher according to the embodiment of the utility model comprises a machine body and a driving device, wherein a washing cavity is arranged in the machine body; the drive means is according to the foregoing for the spray arm 20.

In addition, the seat body 11 of the present invention can be disposed on the back plate of the machine body, or the seat body 11 and the back plate of the machine body can be integrated together. Of course, the driving device of the utility model can also be arranged on the side wall, the bottom wall, the top wall or the door body of the dish washing machine.

In addition, the dishwasher of the present invention further includes a spray arm 20, one end of the spray arm 20 is connected to the driving device, and the other end of the spray arm 20 is in a cantilever form or supported on the body. In addition, the dishwasher of the present invention may not directly include the spray arm 20, that is, the spray arm 20 is provided in a detachable or replaceable form as an accessory of the dishwasher.

Optionally, can be equipped with a plurality of driving mediums on the pedestal, a plurality of driving mediums are arranged along vertical interval on the pedestal, and the transmission shaft can include a plurality ofly, and wherein a plurality of transmission shafts can have same motor to drive, and a plurality of transmission shafts also can be driven by different motors, and a plurality of transmission shafts are connected with the transmission of a plurality of driving mediums correspondingly, and every driving medium all rotates the transmission with at least one and is connected. Like this can connect a plurality of driving mediums through a plurality of transmission shafts, realize driving a plurality of driving mediums through a plurality of transmission shafts and remove. In addition, every driving medium all can rotate the transmission with at least one and be connected, consequently, can realize the rotation of a plurality of rotation pieces through a plurality of transmission shafts, and then realize the drive to a plurality of spray arms.

Alternatively, in the present invention, a plurality of transmission members may be connected by one transmission shaft so that the plurality of transmission members are transmitted by one transmission shaft, that is, the power of the driving member is transmitted to the plurality of transmission members by one transmission shaft. The pedestal can be provided with a plurality of driving mediums, and a plurality of driving mediums are arranged on the pedestal along vertical interval, and a transmission shaft is connected with a plurality of driving mediums transmission, and every driving medium all rotates the piece transmission with at least one and is connected. Therefore, the transmission parts can be connected through one transmission shaft, and the transmission parts can be driven to move through one transmission shaft. In addition, each transmission part can be in transmission connection with at least one rotating part, so that the rotation of the rotating parts can be realized through one transmission shaft, the driving of the spraying arms is further realized, and the structure of the driving device is simplified.

Optionally, the dishwasher further comprises a spray arm adapted to be connected to the rotary member and extending coaxially with the rotation center axis of the rotary member.

Optionally, the driving member is disposed at one end of the seat body along the vertical direction. Therefore, the influence of the washing cavity of the driving piece can be reduced, and the space utilization rate is improved.

Some embodiments of the utility model are described below with reference to the accompanying drawings.

Referring to fig. 1 to 14, in another embodiment of the present invention, the transmission shaft 14 passes through the first rack 131 (i.e. between the first rack 131 and the first stop bar 132) and then is installed together into a fixed position on the seat body 11, the driving member 15 (e.g. a motor) is installed into the transmission shaft 14 and then screwed onto the seat body 11, the fixing member 17 is snapped into the seat body 11 to fix the transmission shaft 14, and then the second gear 121 and the water distribution member 16 are installed in sequence, the sealing ring needs to be installed onto the water distribution member 16 in advance, two screws are screwed onto each water distribution member 16 and fixed onto the seat body 11, the spray arm 20 passes through the water distribution member 16 and is abutted against the second gear 121, one end of the spray arm 20 is fixed onto the inner container, the other end of the spray arm 20 is engaged with the second gear 121 through a semicircular "D" structure, and the water distribution member 16 supplies water to the spray arm 20. The specific transmission scheme is that the driving member 15 drives the transmission shaft 14 to rotate, the transmission shaft 14 drives the first rack 131 to move, the second rack 133 drives the second gear 121 to rotate, finally the second gear 121 drives the spray arms 20 to rotate, the spray arms 20 on the left side and the right side can synchronously rotate in the same direction, and the transmission shaft 14, the transmission member 13 and the rotating member 12 can be made of metal or plastic.

Referring to fig. 15 to 20, in an embodiment of the present invention, the transmission shaft 14 passes through the first rack 131 (i.e. between the first rack 131 and the first stop strip 132), and then is installed together into the seat 11 to be fixed, the driving member 15 is installed into the transmission shaft 14 and then screwed onto the seat 11, the fixing member 17 is fastened into the seat 11 to fix the transmission shaft 14, and then is installed into the second gear 121 and the water distribution member 16 in sequence, the sealing ring needs to be installed onto the water distribution member 16 in advance, two screws are screwed onto each water distribution member 16 and fixed onto the seat 11, the spray arm 20 passes through the water distribution member 16 and is butted with the second gear 121, the top spray arm 20 and the lower spray arm 20 are fixed onto the liner, the middle spray arm 20 is divided into two sections, the rear end of the middle spray arm 20 can be fixed onto the bowl basket, specifically, the transmission scheme is that the driving member 15 drives the transmission shaft 14 to rotate, the transmission shaft 14 drives the first rack 131 to move, the second rack 133 drives the second gear 121 to rotate, finally, the second gear 121 drives the spray arm 20 to rotate, and the transmission shaft 14, the transmission member 13 and the rotating member 12 can be made of metal or plastic. The scheme can select two-layer or three-layer control, and each layer is a gear-rack transmission scheme.

The utility model can realize the accurate control and the arbitrary position control of the spray arm 20 (especially the slender spray arm 20), realize the regional washing and the fixed point washing, and can control the layered layout. The utility model provides an integrated transmission control method, which effectively improves the stability of a driving device and simplifies the mechanism of the driving device.

Referring to fig. 1 to 14, a spray arm assembly 100 according to an embodiment of the present invention is illustrated, which includes a base 11, a rotating member 12, a transmission member 13, a transmission shaft 14, a driving member 15, a fixing member 17, and a spray arm 20.

Wherein, pedestal 11 includes bottom plate 111, first rib 112, second rib 113, bottom plate 111 can become the flat board shape, bottom plate 111's normal line extends along the fore-and-aft direction, first rib 112 and second rib 113 all extend along upper and lower direction, and first rib 112 and second rib 113 separate along the left and right direction, construct constant head tank 1101 between first rib 112 and the second rib 113, first rib 112 and second rib 113 can locate the intermediate position along the left and right direction on bottom plate 111, can set up first buckle portion 1102 on first rib 112 and the lateral surface of second rib 113, first bayonet socket is for the card is protruding, bottom plate 111 front surface is located to first rib 112 and second rib 113. The pedestal 11 can also include third rib and fourth rib, third rib and fourth rib extend along left right direction, and third rib and fourth rib are along upper and lower direction spaced apart, inject guiding groove 1103 between third rib and the fourth rib, be equipped with supporting shoe 1104 on the medial surface of third rib and fourth rib, bottom plate 111 has still set up bracing piece 1105, bracing piece 1105 locates in guiding groove 1103, bracing piece 1105 is located between third rib and the fourth rib, wherein, constant head tank 1101 and guiding groove 1103 intercommunication, the front surface of bottom plate 111 is located to third rib and fourth rib, the top of pedestal 11 is equipped with the mounting plate, the mounting plate is along linking to each other with bottom plate 111 and backward extension. The left and right side edges of the bottom plate 111 can be provided with side plates. A snap structure 114 is arranged between the first rib 112 and the second rib 113.

The rotating member 12 is rotatably sleeved on the supporting rod 1105, and the front end before rotation is provided with an embedded structure for connecting the spray arm 20, and the embedded structure can be configured into a non-circular rod shape, such as a D-shaped rod shape. The rotation member 12 includes a second gear 121, and an axis of the second gear 121 extends in the front-rear direction.

The transmission member 13 extends in the left-right direction, the transmission member 13 is movably disposed in the guide groove 1103 in the left-right direction, the transmission member 13 is supported by the support block 1104, the transmission member 13 includes a first rack 131, a second rack 133, a first stop bar 132 and a second stop bar 134, wherein the first rack 131, the second rack 133, the first stop bar 132 and the second stop bar 134 all extend in the left-right direction, the first rack 131 and the first stop bar 132 are spaced apart from each other in the front-back direction, and the gear teeth of the first rack 131 face the first stop bar 132. The second rack 133 and the second stopper bar 134 are spaced apart in the up-down direction, the first rack 131 is connected to both left and right ends of the first stopper bar 132, and the second rack 133 is connected to both left and right ends of the second stopper bar 134. Wherein, the left and right sides of the first rack 131 are connected with the second rack 133. The second gear 121 is disposed between the second rack 133 and the second stopper bar 134, and the second gear 121 and the second rack 133 are engaged with each other.

The transmission shaft 14 extends in the up-down direction, an annular groove 1401 is arranged on the circumferential surface of the transmission shaft 14, the transmission shaft 14 is embedded into the positioning groove 1101, the transmission shaft 14 is rotatable, the buckling structure 114 is in buckling fit with the annular groove 1401 to position the transmission shaft 14, the transmission shaft 14 is coaxially connected with a first gear 142, the first gear 142 is arranged in the guide groove 1103, the first gear 142 extends into the space between the first rack 131 and the first stop strip 132, and the first gear 142 is meshed with the first rack 131.

The driving member 15 is connected to the upper end of the seat 11, and in combination with the above, the driving member 15 is installed on the mounting plate, the driving member 15 may be a motor, a motor shaft of the motor extends in the up-down direction, and the motor is matched with the shaft hole of the transmission shaft 14.

Fixing piece 17 installs on pedestal 11, fixing piece 17 includes baffle 171, first turn-ups 172 and second turn-ups 173, baffle 171 is the rectangular form that extends along the upper and lower direction, and first turn-ups 172 and second turn-ups 173 connect respectively in the left and right sides edge of baffle 171, and first turn-ups 172 and second turn-ups extend along the upper and lower direction, first turn-ups 172 and second turn-ups 173 include shell fragment 174, second buckle portion 175 has been set up on the shell fragment 174, second buckle portion 175 can be the card hole, in the installation, first turn-ups 172 and second turn-ups 173 are located respectively in the first rib 112 and the second rib 113 outside, and first buckle portion 1102 and second buckle portion 175 block. The positioning groove 1101 is covered by the fixing member 17.

The water distribution member 16 includes a hub 161 and a drainage tube, the hub 161 extends in a front-rear direction, an ear is provided at a rear end of the hub 161, the hub 161 and the second gear 121 are coaxially provided and fixedly mounted through the ear, a spray arm 20 is provided in the hub 161 to be supported by a boss 162, the drainage tube can be connected to a side wall of the hub 161, and the drainage tube communicates with an inner space of the hub 161. Sealing rings may be disposed at front and rear sides in the water distribution member 16, and a closed space is formed in the shaft sleeve 161 by the sealing rings.

Be equipped with the mating holes on the terminal surface of the one end of spray arm 20, the transmission cooperation of rotating piece 12 and spray arm 20 is realized through the shaft hole cooperation in this end of spray arm 20 cartridge in drive arrangement, has the guide chamber in the spray arm 20, is equipped with the inlet opening on the perisporium of this end of spray arm 20, and the end cartridge of spray arm 20 is in axle sleeve 161 to make things convenient for into water.

In the use process, the driving part 15 drives the transmission shaft 14 to rotate, the transmission part 13 is driven to move along the left and right directions through the gear and rack matching, and then the rotating part 12 is driven to rotate through the gear and rack transmission, so that the spray arm 20 is driven to rotate.

Referring to fig. 15 to 20, another embodiment of the present invention is shown, and the transmission manner of this embodiment is basically connected to the transmission manner of the previous embodiment, wherein in this embodiment, a plurality of guide grooves 1103 are arranged on the seat body 11 at intervals along the vertical direction, and a transmission member 13, a rotation member 12 and the like are arranged corresponding to each guide groove 1103. The driving member 15 is connected to the upper end of the transmission shaft 14, the first gear 142 is connected to the lower end of the transmission shaft 14, and the first gear 142 is connected to the shaft portion 141 of the transmission shaft 14 through a shaft hole.

In addition, the spray arm 20 of the present invention may comprise multiple segments, for example, the spray arm 20 is configured to be detachably connected to two ends, one of which is installed on the bowl basket, and the other is installed on the seat body 11, and during the process of detaching the bowl basket, the part of the spray arm 20 installed on the bowl basket is detached together with the bowl basket, of course, in the present invention, the spray arm 20 may also be configured to be detached together when detaching the bowl basket.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A drive arrangement for a spray arm, comprising:

a base body;

the rotating piece is rotatably arranged on the base body and is used for connecting the spray arm;

the transmission piece is movably arranged on the seat body and is in transmission connection with the rotating piece so as to drive the rotating piece to rotate;

the transmission shaft is rotatably arranged on the seat body and is in transmission connection with the transmission piece so as to drive the transmission piece to move;

the driving piece is in transmission connection with the transmission shaft so as to drive the transmission shaft to rotate.

2. The drive device for the spray arm of claim 1, wherein the central axis of rotation of the rotating member extends in a longitudinal direction, the transmission member is movably disposed on the base in a transverse direction, the transmission shaft extends in a vertical direction, and the longitudinal direction, the transverse direction and the vertical direction are perpendicular to each other.

3. The driving device for the spraying arm as claimed in claim 2, wherein the base body is provided with a plurality of transmission members arranged at intervals along the vertical direction, the transmission shafts comprise a plurality of transmission members, the transmission shafts are correspondingly in transmission connection with the transmission members, and each transmission member is in transmission connection with at least one of the rotation members.

4. The drive device for the spray arm according to claim 2, wherein the transmission member is connected to the transmission shaft at a middle portion in a transverse direction, and the transmission member is connected to at least one of the rotation members at both end portions in the transverse direction so as to be transmitted to the plurality of rotation members through one of the transmission members.

5. The drive device for the spray arm of any one of claims 1 to 4, wherein the drive shaft comprises a shaft portion and a first gear, and the transmission member comprises a first rack gear, the first gear and the first rack gear being in mesh with each other.

6. The drive device for the spray arm of claim 5, wherein the transmission member further comprises a first stop bar, the first stop bar is disposed in parallel with the first rack, the teeth of the first rack are disposed on a side of the first rack facing the first stop bar, and the first gear is rotatably disposed between the first stop bar and the first rack.

7. The driving device for the spray arm as claimed in claim 5, wherein a plurality of the first gears are coaxially connected to the shaft portion, the plurality of the first gears are arranged along the axial direction of the shaft portion, and the plurality of the first gears are fixedly connected to the same shaft portion, the transmission member includes a plurality corresponding to the plurality of the first gears, and each of the transmission members is correspondingly and drivingly connected to at least one of the rotating members.

8. The drive device for the spray arm of claim 7, wherein one end of the shaft portion is connected to the driving member and the other end is coaxially connected to a first gear, and the first gear is separately and fixedly connected to the shaft portion.

9. The driving device for the spray arm as claimed in any one of claims 1 to 4, wherein the driving member is provided on the base.

10. The driving device for the spraying arm as claimed in any one of claims 1 to 4, wherein the base body is provided with a positioning slot, the positioning slot and the transmission shaft extend in the same direction, and the transmission shaft is rotatably embedded in the positioning slot.

11. The driving device for the spray arm as claimed in claim 10, wherein a locking structure is provided in the positioning groove, and an annular groove is provided on a circumferential surface of the transmission shaft, and the annular groove is locked with the locking structure to position the transmission shaft and to allow the transmission shaft to rotate.

12. The driving device for the spray arm as claimed in claim 10, wherein the base body is further provided with a fixing member, the fixing member is connected to the base body, and the fixing member closes the positioning groove.

13. The driving device for the spray arm according to claim 12, wherein the seat body comprises a bottom plate, a first rib and a second rib, the first rib and the second rib are connected with the bottom plate and are oppositely arranged, the positioning groove is defined between the first rib and the second rib, the fixing member comprises a baffle, a first flange and a second flange, the baffle covers the positioning groove, the first flange and the second flange are respectively arranged at the outer sides of the first rib and the second rib, first buckling parts are respectively arranged at the outer side of the first rib and the outer side of the second rib, the first flange and the second flange respectively comprise elastic pieces, second buckling parts are arranged on the elastic pieces, one of the first buckling parts and the second buckling parts is a buckling hole, and the other is a buckling protrusion, the clamping protrusion is correspondingly clamped with the clamping hole.

14. The drive device for the spray arm of any one of claims 1 to 4, wherein the rotating member comprises a second gear, and the transmission member comprises a second rack, the second gear and the second rack being in mesh with each other.

15. The drive device for the spray arm of claim 14, wherein the transmission member further comprises a second stop bar, the second stop bar is disposed in parallel with the second rack, the teeth of the second rack are disposed on a side of the second rack facing the second stop bar, and the second gear is rotatably disposed between the second stop bar and the second rack.

16. The drive of claim 15, wherein said drive member includes a plurality of said second racks, each of said second racks being configured to drive a rotatable member, such that one of said drive members rotates a plurality of spray arms.

17. The drive device for the spray arm according to any one of claims 1 to 4, wherein the transmission member comprises a first rack and a second rack, the transmission shaft comprises a first gear, the rotation member comprises a second gear, the first rack is engaged with the first gear, the second rack is engaged with the second gear, the first rack and the second rack each extend in a transverse direction, and the gear teeth of the first rack and the gear teeth of the second rack are perpendicular to each other.

18. The driving device for the spray arm according to any one of claims 1 to 4, wherein the base body is provided with a guide groove, the transmission member is embedded in the guide groove, and the transmission member is movable along an extending direction of the guide groove.

19. The drive device for the spray arm of claim 18, wherein the guide groove is provided with support blocks on opposite sides thereof, the support blocks being adapted to support the movement of the driving member.

20. The drive device for the spray arm according to any one of claims 1 to 4,

the transmission is constructed as a unitary structure; and/or

The base is provided with a support rod, and the rotating piece is rotatably supported on the support rod.

21. A housing adapted for use in a drive arrangement for a spray arm according to any one of claims 1 to 18, wherein the housing is provided with a guide slot extending in a transverse direction, the guide slot being adapted to receive the drive member and to guide the drive member in a transverse direction.

22. The seat body according to claim 21, wherein the seat body is provided with a plurality of the guiding grooves arranged at intervals along a vertical direction, the seat body is further provided with a positioning groove extending along the vertical direction, the guiding grooves and the positioning groove intersect and communicate, and the positioning groove is configured to accommodate a transmission shaft and to allow the transmission shaft to rotate.

23. The holder body according to claim 22, wherein the positioning groove is formed in a middle portion of the holder body in a transverse direction.

24. The seat according to claim 22 or 23, wherein said seat comprises a bottom plate, and a first rib, a second rib, a third rib and a fourth rib provided on said bottom plate, said first rib and said second rib extending vertically and being spaced apart laterally to form said positioning slot, said third rib and said fourth rib extending laterally and being spaced apart vertically to form said guide slot.

25. A dishwasher, comprising:

the washing machine comprises a machine body, a washing cavity and a washing device, wherein the washing cavity is arranged in the machine body;

drive means for a spray arm according to any one of claims 1 to 20.

26. The dishwasher of claim 25, wherein the base body is provided with a plurality of transmission members arranged at intervals along the vertical direction, the transmission shafts comprise a plurality of transmission members, the plurality of transmission shafts are correspondingly in transmission connection with the plurality of transmission members, and each transmission member is in transmission connection with at least one of the rotation members.

27. The dishwasher of claim 25, wherein the housing has a plurality of the transmission members spaced apart vertically, the transmission shaft is in driving connection with the plurality of transmission members, and each of the transmission members is in driving connection with at least one of the rotating members.

28. The dishwasher of any one of claims 25 to 27, further comprising:

the spray arm is suitable for being connected with the rotating part, and the spray arm and the rotating center shaft of the rotating part extend coaxially.

29. The dishwasher of any one of claims 25 to 27, wherein the holder is provided on a back plate of the housing or the holder is integrated with the back plate of the housing.

30. The dishwasher of claim 29, wherein the drive member is provided at one end of the housing in a vertical direction.