CN218279562U - A spray structure and cleaning machine for cleaning machine - Google Patents

Abstract

The utility model relates to a spray structure for a cleaning machine and a cleaning machine, wherein the spray structure comprises a spray arm, the spray arm is hollow to form a flow passage, and the spray arm is provided with a water inlet and a plurality of spray holes which are in fluid communication with the flow passage; the mounting seat is rotationally connected with the spraying arm through a rotating shaft; the moving block is arranged on the spraying arm and can move towards the direction far away from or close to the rotating shaft; and the driving mechanism is arranged on the spraying arm and/or the mounting seat and is connected with the moving block in a driving way. The rotational inertia of the sprayer is changed through the movement of the moving block on the spraying arm, and the rotating speed of the sprayer is further changed.

Description

A spray structure and cleaning machine for cleaning machine

Technical Field

The utility model relates to a can wash dish washer technical field of bowl dish, fruit vegetables, concretely relates to a spray structure and cleaning machine for cleaning machine.

Background

The spray arm of the existing dish washer generally rotates at a constant speed, and in the process that the spray arm rotates for a circle, the stay time of the spray arm at each angle position is the same, so that the angular speed of a rotating water column generated by the spray arm in the cleaning process of pollutants which are easy to clean and pollutants which are difficult to clean is the same. In fact, the relatively difficult cleaning pollutants need lower rotating speed and higher water flow lift to realize the sufficient friction of water flow and the disk surface instead of floating at high speed, but if the rotating speed of the spray arm is reduced by reducing the rotating speed of the motor, the water flow lift can be reduced, and the cleaning is not facilitated.

In order to solve the problems, the dish washing machine disclosed in the Chinese invention patent application with the patent number of CN201911157315.6 (with the publication number of CN 111000514A) comprises an inner container and a spray arm rotatably arranged in the inner container, wherein at least one end of the spray arm in the length direction is provided with a first magnetic part, the side wall of the inner container is provided with a second magnetic part, and when the first magnetic part rotates along with the spray arm to be close to or far away from the second magnetic part, the second magnetic part can change the rotating speed of the spray arm. This patent is through setting up first magnetic part on the spray arm, set up second magnetic part on the inner bag, utilizes the interact between first magnetic part and the second magnetic part, has realized the acceleration rate and the speed reduction of spray arm.

However, the patent has the following disadvantages: 1. the mode of the patent has higher requirements on the relative position between the spray arm and the second magnetic part, otherwise, if the first magnetic part and the second magnetic part are not aligned in the horizontal direction, the interaction between the first magnetic part and the second magnetic part is influenced, and the adjustment of the rotating speed of the spray arm is influenced; the second magnetic part is arranged on the inner container, the wall of the inner container is thin and easy to deform, the first magnetic part and the second magnetic part can not be aligned in the horizontal direction after deformation, and the first magnetic part and the second magnetic part can not interact well to change the rotating speed of the spray arm; in addition, the first magnetic part and the second magnetic part are respectively arranged on the inner container and the spray arm, so that the structure is not compact enough; 2. the two ends of the spray arm are stressed differently, so that the spray arm cannot rotate stably, because the first magnetic parts at the two ends of the spray arm repel each other, and the first magnetic part at the other end attracts the corresponding second magnetic part, namely, one end of the spray arm is stressed by a pushing force, and the other end of the spray arm is stressed by a pulling force, the two ends of the spray arm are stressed unevenly, and incline or vibrate to influence the cleaning effect; in addition, the force between the magnets cannot be accurately calculated, and technicians cannot conveniently control the rotating speed of the spray arm.

The patent adjusts the rotating speed of the spray arm by attracting or repelling the end of the spray arm, and the rotating speed of the spray arm is adjusted by other ways and is also to be further researched.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first technical problem that will solve is to prior art's current situation, provides a structure that sprays that is used for cleaning machine that can adjust the spray arm rotational speed equally.

The utility model discloses the second technical problem that will solve is the current situation to prior art, provides a compact structure's a structure that sprays for cleaning machine.

The utility model aims to solve the third technical problem is to prior art's current situation, provides an use above-mentioned cleaning machine that sprays structure.

The utility model provides a technical scheme that above-mentioned first and second technical problem adopted is: a spray structure for a cleaning machine, comprising

The sprayer comprises a spray arm, the spray arm is hollow to form a flow channel, and the spray arm is provided with a water inlet and a plurality of spray holes which are in fluid communication with the flow channel;

the mounting seat is rotationally connected with the spraying arm through a rotating shaft;

characterized in that the sprayer also comprises

The moving block is arranged on the spraying arm and can move towards the direction far away from or close to the rotating shaft;

the spraying structure further comprises

And the driving mechanism is arranged on the spraying arm and/or the mounting seat and is connected with the moving block in a driving way.

In order to enable the spraying arms to be stressed uniformly, at least two moving blocks are arranged and are in rotational symmetry with the center line of the rotating shaft as the center. Therefore, the influence of the moving block on the spray arm is uniform, so that the spray arm is stressed uniformly and cannot incline or vibrate.

In the above scheme, preferably, the spray arm is strip-shaped, the center line of the rotating shaft is located at the center of the spray arm, and two moving blocks are symmetrically arranged on two sides of the center line of the rotating shaft.

The driving mechanism can have various structural forms, such as a motor and a push rod connected with the motor, preferably, each moving block is connected with a group of driving mechanisms in a driving way, and each group of driving mechanisms comprises a driving component capable of driving the moving block to move towards the direction far away from the rotating shaft and a resetting component capable of driving the moving block to move towards the rotating shaft.

The driving assembly may have various structural forms, and preferably, the driving assembly includes a first driving member disposed on the moving block and a second driving member disposed on the mounting seat, and the spray arm can rotate to a state where the second driving member is opposite to or in contact with the first driving member, and in this state, the second driving member can act on the first driving member to move the second driving member in a direction away from the rotating shaft.

The reset piece can have various structural forms, is simple in structure and low in cost, and is a first elastic piece acting on the moving block, and the first elastic piece enables the moving block to keep a trend of moving towards a direction away from the rotating shaft.

In order to enable the second driving part to act on the first driving part and enable the second driving part to move towards the direction far away from the rotating shaft, a pushing part extending towards the rotating shaft is arranged on the moving block, a convex block capable of abutting against the pushing part is arranged on the outer peripheral wall of the mounting seat, the wall surface of the convex block capable of abutting against the pushing part is an inclined surface inclined towards the direction far away from the mounting seat along the circumferential direction of the mounting seat, the pushing part is the first driving part, and the convex block is the second driving part. When the spray arm rotates until the pushing part is abutted against the lug, the spray arm continues to rotate, the lug can force the pushing part to move towards the direction away from the rotating shaft, and the moving block moves along with the lug. The inclined plane on the lug is arranged to prevent the pushing part from interfering with the lug and influencing the rotation of the spray arm. The pushing part is pushed by the convex block to realize the movement of the moving block, the structure is simple, an electric element is not needed, and the energy consumption is low.

The structure is simple, the lug is triangular, so that an inclined plane is formed on the lug; the pushing portion is L-shaped and comprises a first plate body and a second plate body, one end of the first plate body is connected with the moving block, and the other end of the first plate body extends towards the direction of the rotating shaft and is bent to form the second plate body so that the lug can be in contact with and push the pushing portion.

When the first driving member and the second driving member are not in an opposite or conflicting state, the force of the driving assembly on the moving block disappears, and if only the first elastic member acts on the moving block at this time, the moving block always tends to move towards the rotating shaft. Therefore, when the first driving piece and the second driving piece are not in an opposite or interference state, the moving block keeps a balance state under the combined action of the first elastic piece and the second elastic piece.

In order to guide the moving track of the moving block, a guide rail is arranged on the spraying arm, one end of the guide rail is close to the rotating shaft, the other end of the guide rail extends in the direction far away from the rotating shaft, and the moving block is installed on the guide rail and can move along the guide rail.

In the above scheme, preferably, the spray arm has a first side wall and a second side wall that set up relatively, the orifice is seted up on the first side wall, form along inlet opening axial extension from the week of inlet opening on the second side wall of spray arm the pivot, the inside cavity of pivot is as the inlet tube, set up the free end male mounting hole that supplies the pivot on the mount pad, the pivot can rotate for the mounting hole. The pivot not only can regard as the part of connecting spray arm and mount pad, can also regard as the inlet tube for the part that the structure of spraying related is few, and the structure is simplified.

In order to facilitate the rotating shaft to be rotatably installed on the installation seat, the free end of the rotating shaft is provided with at least two lateral outward protrusions arranged at intervals along the circumferential direction on the outer circumferential wall of the free end of the rotating shaft, the rotating shaft can be inserted into the installation hole by pressing the lateral outward protrusions inwards, and in the inserted state, the lateral outward protrusions reversely buckle the corresponding inner wall surface of the installation seat. Like this with pivot cartridge in the mounting hole, at the cartridge in-process, the outside convex part of side receives the extrusion of mounting hole to warp inwards, treats that the outside convex part of side passes through the mounting hole after, the internal face of resilient with the left-hand thread mounting seat realizes the installation of spray arm and mounting seat, and the mounting means is swift simple.

In order to facilitate the lateral outward convex part to be extruded and deformed by the mounting hole, the outer wall surface of the lateral outward convex part is a conical surface which is gradually reduced in diameter along the insertion direction of the rotating shaft.

In order to facilitate the adjustment and control of the rotation speed of the spray arm, the torque of the spray arm is recorded as T in the unit of N x m, the moment of inertia of the sprayer is recorded as J in the unit of Kg x m, and the angular acceleration of the spray arm is recorded as alpha in the unit of rad/s ² T = J × α. Technicians can calculate the related parameters of the spray arm according to the formula so as to calculate the maximum and minimum rotating speeds of the spray arm, and if the rotating speeds are not proper, the rotating speeds can be adjusted by adjusting the weight of the movable block or the moving stroke of the movable block.

The utility model provides a technical scheme that above-mentioned third technical problem adopted does: the utility model provides an use cleaning machine of above-mentioned structure that sprays which characterized in that: the spraying structure is arranged in the box body, and the mounting seat is fixedly arranged relative to the box body.

In order to facilitate the fixed installation of the installation seat in the box body, a water pumping mechanism is fixedly installed in the box body and comprises a pump shell, the pump shell is in fluid communication with a water inlet hole of the spray arm, a connecting piece is arranged on the outer peripheral wall of the pump shell, an installation groove which extends along the circumferential direction of the pump shell and is provided with an opening on the side part is formed in the connecting piece, a fixture block is arranged on the installation seat, and the fixture block can enter from the opening end of the installation groove and is positioned in the installation groove. Thus, the mounting seat is rotated to enable the clamping block to enter the mounting groove, and the mounting of the spraying structure is realized; the mounting seat is rotated reversely, the clamping block is rotated out of the mounting groove, the spraying structure is detached, and the spraying structure is easy to disassemble and assemble.

Compared with the prior art, the utility model has the advantages that: 1. the utility model discloses a set up the movable block on the spray arm, through the removal of movable block on the spray arm, change the inertia of spray thrower, known from theoretical mechanics, when the movable block moves towards the direction of keeping away from the pivot, the inertia of spray thrower becomes big, the rotational speed can slow down, otherwise, when the movable block moves towards the direction of looks pivot, the inertia of spray thrower becomes little, the rotational speed can become fast, realize that the spray arm rotates the rotational speed of spray arm when certain position and grow or diminish, improve the cleaning ability of spray arm; 2. the moving block of the utility model is arranged on the spray arm, the driving mechanism is arranged on the spray arm and/or the mounting seat, and the components for adjusting the rotating speed of the spray arm are all arranged on the spray structure, so that the integrated level is high and the structure is compact; the parts are not arranged on the inner container, so that the working reliability of the parts cannot be influenced by the deformation of the inner container;

when the utility model discloses a when the structure that sprays is used for the cleaning machine, can design when the structure that sprays removes the angle position of placing to difficult abluent tableware for the rotational speed of spray thrower slows down, with the cleaning performance who improves the tableware.

Drawings

Fig. 1 is a schematic structural view of a spraying structure in embodiment 1 of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;

FIG. 3 is a cross-sectional view of FIG. 1;

fig. 4 is a schematic structural view of the moving block and the pushing portion in fig. 3;

FIG. 5 is a cross-sectional view of the spray structure of FIG. 1 installed in a tank;

FIG. 6 is an enlarged view of FIG. 5 at A;

FIG. 7 is a schematic structural view of the mounting base of FIG. 6;

FIG. 8 is a schematic structural view of the water pumping mechanism of FIG. 6;

fig. 9 is a schematic structural view of a spraying structure according to embodiment 2 of the present invention;

FIG. 10 is a cross-sectional view of FIG. 9;

FIG. 11 is a schematic view of the structure of FIG. 9 in another direction;

figure 12 is a cross-sectional view of the moving mass of figure 11;

FIG. 13 is a schematic structural view of the mounting socket of FIG. 11;

FIG. 14 is a cross-sectional view of FIG. 13;

FIG. 15 is a cross-sectional view of the spray structure of FIG. 9 installed in a cabinet;

FIG. 16 is an enlarged view at B of FIG. 15;

FIG. 17 is a schematic structural view of the mounting socket of FIG. 16;

fig. 18 is a schematic structural view of the water pumping mechanism in fig. 16.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1

As shown in fig. 1 to 8, the cleaning machine of the preferred embodiment includes a box 6 and a spraying structure, the spraying structure is installed in the box 6, the spraying structure includes a sprayer, an installation seat 1 and a driving mechanism, the installation seat 1 is fixedly installed in the box 6, the sprayer includes a spraying arm 2, a moving block 3 and other components (such as a guide rail 4, a first elastic member 32, a second elastic member 33, a first driving member, etc. hereinafter) installed on the sprayer, a flow passage 21 is formed in the spraying arm 2, a water inlet 22 and a plurality of spray holes 23 are formed in the spraying arm 2, the installation seat 1 is rotatably connected with the spraying arm 2 through a rotating shaft 24, and the flow passage 21 is in fluid communication with the water inlet 22 and the spray holes 23.

As shown in fig. 3, in this embodiment, the spray arm 2 has a first side wall 25 and a second side wall 26 that are disposed opposite to each other, the spray hole 23 is formed in the first side wall 25, the second side wall 26 of the spray arm 2 extends axially from the periphery of the water inlet hole 22 to form a rotating shaft 24, the rotating shaft 24 is hollow and serves as a water inlet pipe, the mounting base 1 is formed with a mounting hole 11 for inserting a free end of the rotating shaft 24, and the rotating shaft 24 can rotate relative to the mounting hole 11.

The free end of the rotating shaft 24 has at least two lateral outward protrusions 241 arranged at intervals along the circumferential direction on the outer circumferential wall thereof, the outer wall surface of the lateral outward protrusion 241 is a tapered surface 2411 gradually reducing in diameter along the insertion direction of the rotating shaft 24, the rotating shaft 24 can be inserted into the mounting hole 11 by pressing the lateral outward protrusion 241 inward, and the lateral outward protrusion 241 reversely buckles the inner wall surface of the corresponding mounting seat 1 in the inserted state. Therefore, the rotating shaft 24 is inserted into the mounting hole 11, in the inserting process, the lateral outward protruding portion 241 is extruded by the mounting hole 11 to deform inward, after the lateral outward protruding portion 241 passes through the mounting hole 11, the lateral outward protruding portion is restored to the original state to reversely buckle the inner wall surface of the mounting seat 1, the mounting of the spray arm 2 and the mounting seat 1 is achieved, and the mounting mode is fast and simple.

The moving block 3 is installed on the spray arm 2, the moving block 3 can move towards the direction far away from or close to the rotating shaft 24, the driving mechanism is arranged on the spray arm 2 and/or the installation base 1, and the driving mechanism is connected with the moving block 3 in a driving mode. According to theoretical mechanics, when the moving block 3 moves in the direction far away from the rotating shaft 24, the rotational inertia of the sprayer becomes large, the rotating speed becomes slow, otherwise, when the moving block 3 moves in the direction of the rotating shaft 24, the rotational inertia of the sprayer becomes small, the rotating speed becomes fast, the rotating speed of the spraying arm 2 becomes large or small when the spraying arm 2 rotates to a certain position, and the cleaning capacity of the spraying arm 2 is improved

The spray arm 2 is strip-shaped, the central line of the rotating shaft 24 is positioned at the central position of the spray arm 2, and two moving blocks 3 are symmetrically arranged at two sides of the central line of the rotating shaft 24. Of course, the shower arm 2 is not limited to a bar shape, and may also be a disk shape, and the moving blocks 3 are not limited to two, such as three or more, and the plurality of moving blocks 3 are arranged in rotational symmetry with the center line of the rotating shaft 24 as the center. The influence of the moving block 3 on the spray arm 2 is uniform, so that the spray arm 2 is stressed uniformly, and the condition of inclination or vibration cannot occur.

As shown in fig. 3, each moving block 3 is drivingly connected to a set of drive mechanisms, so that the moving block 3 is moved. The spray arm 2 is provided with a containing groove 27, a guide rail 4 is arranged in the containing groove 27, one end of the guide rail 4 is close to the rotating shaft 24, the other end of the guide rail 4 extends towards the direction far away from the rotating shaft 24, and the moving block 3 is installed on the guide rail 4 and can move along the guide rail 4.

Each set of driving mechanism comprises a driving component capable of driving the moving block 3 to move towards the direction away from the rotating shaft 24 and a resetting component capable of driving the moving block 3 to move towards the rotating shaft 24. The driving assembly comprises a first driving piece arranged on the moving block 3 and a second driving piece arranged on the mounting base 1, the spraying arm 2 can rotate to a state that the second driving piece is opposite or inconsistent with the first driving piece, and in the state, the second driving piece can act on the first driving piece to enable the second driving piece to move towards a direction far away from the rotating shaft 24.

As shown in fig. 2 and 4, the moving block 3 is provided with a pushing portion 51 extending toward the rotating shaft 24, the outer peripheral wall of the mount 1 is provided with a projection 52 capable of abutting against the pushing portion 51, and a wall surface of the projection 52 capable of abutting against the pushing portion 51 is an inclined surface inclined in a direction away from the mount 1 in the circumferential direction of the mount 1. In this embodiment, the protrusion 52 is triangular, the pushing portion 51 is a first driving member, the pushing portion 51 is L-shaped, and includes a first plate 511 and a second plate 512, one end of the first plate 511 is connected to the moving block 3, the other end of the first plate 511 extends toward the rotating shaft 24 and is bent to form the second plate 512, and the protrusion 52 is a second driving member.

When the spray arm 2 rotates until the pushing portion 51 abuts against the protrusion 52, the spray arm 2 continues to rotate, the protrusion 52 forces the pushing portion 51 to move away from the rotating shaft 24, and the moving block 3 moves accordingly. The inclined surface of the projection 52 is provided to prevent the pushing portion 51 and the projection 52 from interfering with each other and affecting the rotation of the shower arm 2.

The reset member is a first elastic member 32 acting on the moving block 3, the first elastic member 32 keeps the moving block 3 moving in a direction away from the rotating shaft 24, and the moving block 3 also keeps moving in a direction away from the rotating shaft 24 under the action of a second elastic member 33.

Because the force of the driving component on the moving block 3 disappears when the first driving member and the second driving member are not in an opposite or colliding state, if only the first elastic member 32 acts on the moving block 3 at this time, the moving block 3 always tends to move towards the rotating shaft 24, the second elastic member 33 is provided, so that the moving block 3 keeps a balanced state under the combined action of the first elastic member 32 and the second elastic member 33 when the first driving member and the second driving member are not in an opposite or colliding state.

As shown in fig. 3, in the present embodiment, the first elastic element 32 is a spring sleeved on the guide rail 4, one end of the spring abuts against the side wall of the receiving groove 27, and the other end abuts against the moving block 3; the second elastic member 33 is also a spring sleeved on the guide rail 4, the second elastic member 33 and the first elastic member 32 are located at opposite sides of the moving block 3, one end of the second elastic member 33 abuts against the side wall of the accommodating groove 27, and the other end abuts against the moving block 3.

The torque of the spray arm 2 is denoted T in N m, the moment of inertia of the shower is denoted J in Kg m, the angular acceleration of the spray arm 2 is denoted α in rad/s ² T = J × α. The technician can calculate the relevant parameters of the spray arm 2 according to the formula, thereby calculating the maximum and minimum rotating speeds of the spray arm 2, and if the rotating speeds are not proper, the rotating speeds can be adjusted by adjusting the weight of the moving block 3 or the moving stroke of the moving block 3.

As shown in fig. 5 to 8, a water pumping mechanism 7 is fixedly installed in the tank 6, the water pumping mechanism 7 may adopt an existing structure, the water pumping mechanism 7 includes a pump shell 71, the pump shell 71 is in fluid communication with the water inlet 22 of the spray arm 2, a connecting member 72 is disposed on an outer peripheral wall of the pump shell 71, an installation groove 721 extending along a circumferential direction of the pump shell 71 and having an open side is disposed on the connecting member 72, a fixture block 16 is disposed on the installation seat 1, and the fixture block 16 can enter from an open end of the installation groove 721 and be positioned in the installation groove 721. Thus, the installation of the spraying structure is realized by rotating the installation seat 1 to enable the fixture block 16 to enter the installation groove 721; the mounting seat 1 is rotated reversely, the clamping block 16 is rotated out of the mounting groove 721, the spraying structure is detached, and the spraying structure is easy to disassemble and assemble. In addition, since the projection 52 has a triangular shape, it is convenient to rotate the mount 1 by applying a force to the projection 52.

The working process of the spraying structure of the embodiment is as follows: when the spray arm 2 rotates to a position where the bump 52 and the pushing part 51 collide with each other, the pushing part 51 is pushed by the bump 52, and the moving block 3 moves in a direction away from the rotating shaft 24, so that the rotational inertia of the spray arm 2 is increased, and the rotating speed is slowed down; when the spray arm 2 rotates until the convex block 52 and the pushing part 51 are staggered, the convex block 52 is not applied to the pushing part 51, the moving block 3 moves towards the rotating shaft 24 under the action of the first elastic piece 32, so that the moment of inertia of the spray arm 2 is reduced, the rotating speed is increased, and when the moving block 3 moves until the first elastic piece 32 and the second elastic piece 33 apply Yu Shangde forces which are equal, the moving block 3 is in a balanced state.

Example 2

As shown in fig. 9 to 18, embodiment 2 differs from embodiment 1 in the driving unit, and embodiment 1 can be referred to.

In this embodiment, the driving assembly includes a first magnetic member 53 and a second magnetic member 54, the first magnetic member 53 is disposed on the moving block 3, and the second magnetic member 54 is disposed on the mounting base 1, that is, the first magnetic member 53 is a first driving member, and the second magnetic member 54 is a second driving member.

As shown in fig. 12 and 14, the first magnetic member 53 and the second magnetic member 54 are both in a peak shape, the peak of the first magnetic member 53 faces the rotating shaft 24, the peak of the second magnetic member 54 faces away from the rotating shaft 24, and the shower arm 2 can rotate to a position where the first magnetic member 53 and the second magnetic member 54 are oppositely disposed and have the same poles opposite to each other.

When the spray arm 2 rotates to a position where the first magnetic member 53 and the second magnetic member 54 are opposite to each other in the same polarity, under the influence of the repulsive force between the first magnetic member 53 and the second magnetic member 54, the moving block 3 moves away from the rotating shaft 24, so that the rotational inertia of the spray arm 2 is increased, and the rotating speed is slowed; when the spray arm 2 rotates to the first magnetic part 53 and the second magnetic part 54 are staggered, the repulsive force between the first magnetic part 53 and the second magnetic part 54 disappears, the moving block 3 moves towards the rotating shaft 24 under the action of the first elastic part 32, so that the moment of inertia of the spray arm 2 becomes small, the rotating speed becomes large, and when the moving block 3 moves to the position where the first elastic part 32 and the second elastic part 33 apply Yu Shangde force to be equal, the moving block 3 is in a balanced state.

As shown in fig. 13, a mounting tube 12 is axially formed on the mounting base 1 from the periphery of the mounting hole 11, the rotating shaft 24 is inserted into the mounting tube 12, an annular body 13 is sleeved on the mounting tube 12, a cover 131 is formed on the outer peripheral wall of the annular body 13, a positioning groove 14 is formed on the mounting base 1 beside the mounting hole 11, the second magnetic element 54 is installed in the positioning groove 14, the cover 131 covers the positioning groove 14, a positioning block 15 capable of deforming inward under extrusion is formed on the outer peripheral wall of the mounting tube 12, and the cover 131 can abut against the positioning block 15 to position the second magnetic element 54. When the annular body 13 is fitted to the mounting pipe 12, the positioning block 15 is pressed and deformed by the annular body 13, and after the annular body 13 passes over the positioning block 15, the positioning block 15 is restored to the original state and is abutted against the lid 131.

The positioning groove 14 and the cover 131 are both triangular so as to apply force to the cover 131, and the cover 131 is rotated, so that the mounting base 1 is detached from the water pumping mechanism 7 or mounted on the water pumping mechanism 7, and the mounting base 1 and the water pumping mechanism 7 are connected through the structure shown in embodiment 1.

The first magnetic member 53 and the second magnetic member 54 are both magnets.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the invention can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter, referred to as a first portion and a second portion) in a unified manner, i.e., a fluid (gas, liquid or a mixture thereof) can flow along a flow path from the first portion or/and be transported to the second portion, and may be directly communicated between the first portion and the second portion, or indirectly communicated between the first portion and the second portion via at least one third member, which may be a fluid passage such as a pipe, a channel, a duct, a flow guide member, a hole, a groove, or a chamber allowing the fluid to flow therethrough, or a combination thereof.

Claims (15)

1. A spray structure for a cleaning machine includes

The spray device comprises a spray arm (2), a flow channel (21) is formed in the spray arm (2) in a hollow mode, and a water inlet hole (22) and a plurality of spray holes (23) which are communicated with the flow channel (21) in a fluid mode are formed in the spray arm (2);

the mounting base (1) is rotatably connected with the spray arm (2) through a rotating shaft (24);

characterized in that the sprayer also comprises

The moving block (3) is installed on the spraying arm (2), and the moving block (3) can move in the direction far away from or close to the rotating shaft (24);

the spraying structure also comprises

The driving mechanism is arranged on the spraying arm (2) and/or the mounting seat (1) and is connected with the moving block (3) in a driving mode.

2. The spray structure of claim 1, wherein: the moving blocks (3) are at least two and are arranged in a rotational symmetry mode by taking the center line of the rotating shaft (24) as the center.

3. The spray structure of claim 2, wherein: the spraying arms (2) are strip-shaped, the center line of the rotating shaft (24) is located at the center of the spraying arms (2), and the two moving blocks (3) are symmetrically arranged on two sides of the center line of the rotating shaft (24).

4. The spray structure of claim 2, wherein: each moving block (3) is connected with a group of driving mechanisms in a driving mode, and each group of driving mechanisms comprises a driving assembly capable of driving the moving blocks (3) to move towards the direction far away from the rotating shaft (24) and a reset piece capable of driving the moving blocks (3) to move towards the direction of the rotating shaft (24).

5. The spray structure of claim 4, wherein: the driving assembly comprises a first driving piece arranged on the moving block (3) and a second driving piece arranged on the mounting base (1), the spraying arm (2) can rotate to a state that the second driving piece is opposite or inconsistent with the first driving piece, and in the state, the second driving piece can act on the first driving piece to enable the second driving piece to move towards a direction far away from the rotating shaft (24).

6. The spray structure of claim 4, wherein: the reset piece is a first elastic piece (32) acting on the moving block (3), and the first elastic piece (32) enables the moving block (3) to keep the trend of moving in the direction away from the rotating shaft (24).

7. The spray structure of claim 5, wherein: the moving block (3) is provided with a pushing portion (51) extending towards the rotating shaft (24), the outer peripheral wall of the mounting seat (1) is provided with a convex block (52) capable of abutting against the pushing portion (51), the wall surface of the convex block (52) capable of abutting against the pushing portion (51) is an inclined surface inclined towards the direction far away from the mounting seat (1) along the circumferential direction of the mounting seat (1), the pushing portion (51) is a first driving piece, and the convex block (52) is a second driving piece.

8. The spray structure of claim 7, wherein: the protruding block (52) is triangular, the pushing portion (51) is L-shaped and comprises a first plate body (511) and a second plate body (512), one end of the first plate body (511) is connected with the moving block (3), and the other end of the first plate body extends towards the direction of the rotating shaft (24) and is bent to form the second plate body (512).

9. The spray structure of claim 6, wherein: the moving block (3) keeps the trend of moving towards the direction far away from the rotating shaft (24) under the action of the second elastic piece (33).

10. The spray structure of claim 1, wherein: the spraying arm (2) is provided with a guide rail (4), one end of the guide rail (4) is close to the rotating shaft (24), the other end of the guide rail (4) extends in the direction away from the rotating shaft (24), and the moving block (3) is installed on the guide rail (4) and can move along the guide rail (4).

11. The spray structure according to any one of claims 1 to 10, characterized in that: spray arm (2) have relative first lateral wall (25) and second lateral wall (26) that set up, orifice (23) are seted up on first lateral wall (25), form along inlet opening (22) axial extension from the week of inlet opening (22) on second lateral wall (26) of spray arm (2) pivot (24), pivot (24) inside cavity is as the inlet tube, set up free end male mounting hole (11) that supply pivot (24) on mount pad (1), pivot (24) can rotate for mounting hole (11).

12. The spray structure of claim 11, wherein: the free end of the rotating shaft (24) is provided with at least two lateral outward protrusions (241) arranged at intervals along the circumferential direction on the outer circumferential wall, the rotating shaft (24) can be inserted into the mounting hole (11) by pressing the lateral outward protrusions (241) inwards, and in the inserted state, the lateral outward protrusions (241) are reversely buckled on the inner wall surface of the corresponding mounting seat (1).

13. The spray structure according to any one of claims 1 to 10, characterized in that: the torque of the spray arm (2) is recorded as T, and the unit is N m, the moment of inertia of the sprayer is recorded as J, and the unit is Kg m, and the rotation angular acceleration of the spray arm (2) is recorded as alpha, and the unit is rad/s ² ，T＝J*α。

14. A cleaning machine using the spray structure of any one of claims 1 to 13, characterized in that: the spraying structure is arranged in the box body (6), and the mounting seat (1) is fixedly arranged relative to the box body (6).

15. The cleaning machine of claim 14, wherein: the spray arm water pump is characterized in that a water pumping mechanism (7) is fixedly mounted in the box body (6), the water pumping mechanism (7) comprises a pump shell (71), the pump shell (71) is in fluid communication with a water inlet hole of a spray arm, a connecting piece (72) is arranged on the peripheral wall of the pump shell (71), a mounting groove (721) which extends along the circumferential direction of the pump shell (71) and is open on the side portion is formed in the connecting piece (72), a clamping block (16) is arranged on the mounting seat (1), and the clamping block (16) can enter from the open end of the mounting groove (721) and is positioned in the mounting groove (721).

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