CN114164617B

CN114164617B - Laundry treatment apparatus and cover case thereof

Info

Publication number: CN114164617B
Application number: CN202010945363.8A
Authority: CN
Inventors: 熊力宁; 吴登军; 史亚成
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2023-11-17
Anticipated expiration: 2040-09-10
Also published as: CN114164617A

Abstract

The invention discloses a cover box of a clothes treatment device and the clothes treatment device, the clothes treatment device comprises an outer cylinder and an inner cylinder, the inner cylinder is arranged in the outer cylinder and rotatable relative to the outer cylinder, a drainage channel is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder, the cover box comprises: the box body, the box body is suitable for to be established the upper end of urceolus and be located the top of inner tube, the box body forms the edge the annular that extends of circumference of urceolus, have in the box body along the annular holding chamber of circumference extension of box body, the bottom side of box body is equipped with the water inlet, be equipped with on the inboard perisporium of box body and be suitable for to first water jet and the second water jet of inner tube water spray, first water jet with the second water jet is spaced apart in the upper and lower direction and is set up. According to the cover box of the clothes treatment equipment, the impact force of water flow on clothes in the inner cylinder is improved, and the washing effect of the clothes treatment equipment is improved.

Description

Laundry treatment apparatus and cover case thereof

Technical Field

The invention relates to the technical field of clothes treatment, in particular to a cover box of clothes treatment equipment and the clothes treatment equipment.

Background

A laundry treating apparatus, such as a pulsator washing machine, includes an inner tub rotatable with respect to an outer tub, and washing water is easily splashed out from a gap between an upper end of the inner tub and an upper end of the outer tub during washing.

In the related art, a drum cover is arranged between the upper end of the inner drum and the upper end of the outer drum to prevent washing water from being thrown out, and a certain number of water guide ribs are arranged below the drum cover to guide the washing water sprayed to the lower surface of the drum cover to the inner drum. However, the water jet formed by the structure is uneven, the diversion effect of the cylinder cover is poor, so that less water is sprayed to the inner cylinder, the washing effect on clothes is poor, the clothes are wet slowly, and the washing effect is poor.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a cover box for a laundry treatment apparatus, which has a good flow guiding effect.

The invention also provides clothes treatment equipment comprising the cylinder cover box.

According to an embodiment of the present invention, a cover box of a laundry treatment apparatus including an outer tub and an inner tub provided in the outer tub and rotatable with respect to the outer tub, a drain passage being formed between an outer wall of the inner tub and an inner wall of the outer tub, the cover box comprising: the box body, the box body is suitable for to be established the upper end of urceolus and be located the top of inner tube, the box body forms the edge the annular that extends of circumference of urceolus, have in the box body along the annular holding chamber of circumference extension of box body, the bottom side of box body is equipped with the water inlet, be equipped with on the inboard perisporium of box body and be suitable for to first water jet and the second water jet of inner tube water spray, first water jet with the second water jet is spaced apart in the upper and lower direction and is set up.

According to the cover box of the clothes treatment equipment, the containing cavity is formed in the box body, so that water travelling upwards from the inside of the water discharge channel enters the containing cavity through the water inlet, the bottom wall of the containing cavity can play a role in blocking water in the containing cavity so that the water in the containing cavity can be sprayed to the inner barrel from the water spray port, backflow of the water in the containing cavity into the water discharge channel through the water inlet is avoided at least to a certain extent, the water spraying amount of the water sprayed to the inner barrel from the water spray port is improved, the opening area of the water spray port is increased through the arrangement of the first water spray port and the second water spray port, the water spraying amount of the water sprayed to the inner barrel from the water spray port is increased, impact force of the water flow to clothes in the inner barrel is improved, the washing effect and the wetting effect to the clothes are improved, the aim of saving water is achieved, meanwhile, the detergent is fully dissolved, and the washing effect of the clothes treatment equipment is improved.

According to some embodiments of the invention, the first and second water jets are staggered in a circumferential direction of the cartridge.

According to some embodiments of the invention, the first water jet includes a plurality of spray holes spaced apart in a circumferential direction of the cartridge, each of the spray holes extending in the circumferential direction of the cartridge, and the second water jet includes a plurality of spray holes spaced apart in the circumferential direction of the cartridge, each of the spray holes extending in the circumferential direction of the cartridge.

According to some embodiments of the invention, the plurality of injection holes and the plurality of injection holes are alternately arranged in a circumferential direction of the cartridge body.

According to some embodiments of the invention, the width of each spray hole is 2-3 mm; and/or the length of each spray hole is 5-10 mm.

According to some embodiments of the invention, the width of each of the injection holes has a value ranging from 3 to 4mm; and/or the length of each jet hole is 4-10 mm.

According to some embodiments of the invention, the included angle between the plane of the top wall of the spray hole and the plane of the top wall of the spray hole is 1-10 °.

According to some embodiments of the invention, the box body is provided with a third water jet, the first water jet, the second water jet and the third water jet are arranged at intervals in the up-down direction, the third water jet is positioned below the first water jet and the second water jet, and the third water jet is formed into a ring shape extending along the whole circumferential direction of the box body.

According to some embodiments of the invention, the cartridge comprises: the annular upper cover is provided with the first water jet and the second water jet; and an annular lower cover provided at a lower side of the annular upper cover to define the accommodation chamber with the annular upper cover, a radial inner end of the annular upper cover being spaced apart from a radial inner end of the annular lower cover to define the third water spray port, a radial outer end of the annular upper cover being located at an outer periphery of a radial outer end of the annular lower cover to define the water inlet with the radial outer end of the annular lower cover.

According to some embodiments of the invention, the radial inner end of the annular upper cover is located at the inner periphery of the radial inner end of the annular lower cover, and the included angle between the tangent line of the radial inner end of the lower surface of the annular upper cover and the plane of the top wall of the injection hole is in the range of 10-30 degrees.

According to some embodiments of the invention, a water guide is provided in the receiving chamber, the water guide being configured to guide water at the water inlet to the first and second water jets.

According to some embodiments of the invention, in the circumferential direction of the box body, the plurality of spray holes and the plurality of spray holes are alternately arranged, the water guide part comprises a plurality of dominant water ribs, the plurality of dominant water ribs are arranged on the lower surface of the annular upper cover, the plurality of dominant water ribs are distributed at intervals along the circumferential direction of the accommodating cavity and are consistent in orientation, each dominant water rib extends from the radial outer end of the annular upper cover to the radial inner end of the annular upper cover, and the spray holes are arranged between two adjacent dominant water ribs.

According to some embodiments of the invention, the first water jet is located above the second water jet, the same side surface of the plurality of dominant water ribs in the circumferential direction of the box body is a water blocking surface, the spray holes located between two adjacent dominant water ribs and the spray holes in the spray holes are located adjacent to the corresponding water blocking surface, each water blocking surface is provided with a secondary water guide rib extending inwards in the radial direction, and the secondary water guide rib located between two adjacent dominant water ribs is used for guiding water at the water inlet to the spray holes located between two adjacent dominant water ribs.

According to some embodiments of the invention, one end of the auxiliary water guide rib between two adjacent main water guide ribs is connected to the water blocking surface of one of the main water guide ribs, and the other end extends to a side of the injection hole away from the water blocking surface of the main water guide rib so that the corresponding injection hole is located between the auxiliary water guide rib and the other main water guide rib.

According to some embodiments of the invention, the third water jet has a width dimension ranging from 1 to 2mm.

According to some embodiments of the invention, the water inlet is formed in a ring shape extending in a circumferential direction of the case, and a radial width dimension of the water inlet is 10 to 15mm.

The clothes treatment device according to the embodiment of the invention comprises the annular cylinder cover box.

According to the clothes treatment equipment provided by the embodiment of the invention, the accommodating cavity is arranged in the box body, so that water travelling upwards from the water discharge channel enters the accommodating cavity through the water inlet, the bottom wall of the accommodating cavity can play a role in blocking the water in the accommodating cavity to ensure that the water in the accommodating cavity is sprayed to the inner cylinder from the water spray port, the water in the accommodating cavity is prevented from flowing backwards into the water discharge channel through the water inlet at least to a certain extent, the water spraying amount from the water spray port to the inner cylinder is further improved, the opening area of the water spray port is increased through the arrangement of the first water spray port and the second water spray port, the water spraying amount from the water spray port to the inner cylinder is further improved, the impact force of the water flow to clothes in the inner cylinder is further improved, the problem of clothes winding is avoided, meanwhile, the detergent can be fully dissolved, and the washing effect of the clothes treatment equipment is improved.

According to some embodiments of the invention, the inner barrel rotates clockwise or counter-clockwise relative to the outer barrel; the main water ribs incline in a clockwise direction or a counterclockwise direction along the radial outward direction of the box body, wherein the inclination direction of the main water ribs is opposite to the rotation direction of the inner cylinder; in the rotation direction of the inner cylinder, the upstream side surface of the dominant water rib is a water blocking surface.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a cartridge cover cassette according to some embodiments of the invention;

FIG. 2 is a schematic view of another orientation of a cartridge cover cassette according to some embodiments of the invention;

FIG. 3 is a schematic view of yet another orientation of a cartridge cover cassette according to some embodiments of the invention;

FIG. 4 is a cross-sectional view taken along the direction A-A shown in FIG. 3;

FIG. 5 is an enlarged view of a circled portion at C according to FIG. 4;

FIG. 6 is a cross-sectional view in the direction B-B as shown in FIG. 3;

FIG. 7 is an enlarged view of the encircled portion shown in FIG. 6 in accordance with D;

FIG. 8 is a schematic view of an annular upper cover according to some embodiments of the present invention;

FIG. 9 is an enlarged view of the encircled portion shown in FIG. 8 at E;

FIG. 10 is a schematic illustration of the mating of the inner barrel, outer barrel, and barrel cover box according to some embodiments of the invention;

FIG. 11 is a schematic illustration of the mating of the inner barrel, outer barrel, and cap box in another orientation according to some embodiments of the invention;

FIG. 12 is a cross-sectional view in the F-F direction according to FIG. 11;

FIG. 13 is an enlarged view of a circled portion at G according to FIG. 12;

fig. 14 is an enlarged view of a circled portion at P shown in fig. 1.

Reference numerals:

1. a cartridge cap box;

10. a case body; 101. an annular upper cover; 1011. a clip; 102. an annular lower cover; a. a water inlet; b. a first water jet; b1, spraying holes; c. a second water jet; c1, spraying holes; d. a third water jet; 103. a water guide part; 1031. leading water ribs; 10311. a water blocking surface; 1032. auxiliary water guide ribs; 10321. a flush portion; h. a receiving chamber;

2. an inner cylinder;

3. an outer cylinder;

4. and a drainage channel.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

A cover case 1 of a laundry treating apparatus and a laundry treating apparatus according to an embodiment of the present invention are described below with reference to the accompanying drawings. Wherein, the laundry treating apparatus may be a washing machine or a washing and drying integrated machine.

As shown in fig. 10 to 12, the laundry treating apparatus according to an embodiment of the present invention may include: an outer cylinder 3, an inner cylinder 2 and a cylinder cover box 1.

Wherein the inner cylinder 2 is provided in the outer cylinder 3 and rotatable with respect to the outer cylinder 3, and a drain passage 4 is formed between an outer wall of the inner cylinder 2 and an inner wall of the outer cylinder 3. The inner cylinder 2 is communicated with the water drainage channel 4. For example, a plurality of spaced through holes penetrating the inner cylinder 2 are formed in the side wall or the bottom wall of the inner cylinder 2, water in the inner cylinder 2 can enter the drain passage 4 through the through holes, and water in the drain passage 4 can enter the inner cylinder 2 through the through holes, so that the washing effect of water flow on clothes in the inner cylinder 2 can be enhanced, and meanwhile, the detergent can be fully dissolved.

As shown in fig. 1, a cover case 1 of a laundry treating apparatus according to an embodiment of the present invention may include a case 10.

Referring to fig. 11 to 13, the cartridge 10 is formed in a ring shape extending in the circumferential direction of the outer cylinder 3, the cartridge 10 is adapted to be disposed at the upper end of the outer cylinder 3, and the cartridge 10 is disposed above the inner cylinder 2, that is, the radially outer end of the ring-shaped cartridge 10 is disposed at the upper end of the outer cylinder 3, the radially inner end of the cartridge 10 extends inwardly above the inner cylinder 2, and when the inner cylinder 2 rotates relative to the outer cylinder 3, water in the water drain passage 4 is rotated up against the inner wall of the outer cylinder 3 by centrifugal force, thereby blocking a gap between the upper end of the outer cylinder 3 and the upper end of the inner cylinder 2 by the cartridge 10, so that water in the water drain passage 4 is prevented from being thrown out from the gap between the upper end of the outer cylinder 3 and the upper end of the inner cylinder 2 when the inner cylinder 2 rotates, and the cartridge 10 is disposed above the inner cylinder 2, and the cartridge 10 is not connected with the inner cylinder 2, and interference of rotation of the cartridge 10 to the inner cylinder 22 can be avoided.

As shown in fig. 5 and 13, the inside of the case 10 has an annular accommodating chamber h extending in the circumferential direction of the case 10, and the bottom side of the case 10 is provided with a water inlet a communicating with the drain passage 4.

As shown in fig. 1, a water jet adapted to spray water to the inner cylinder 2 is provided on the inner peripheral wall of the case 10, and the water jet includes a first water jet b and a second water jet c which are disposed at a distance from each other in the up-down direction. For example, the first water jet b is located above the second water jet c. As another example, the first water jet b is positioned below the second water jet c. Among them, it can be understood that since the case 10 is formed in a ring shape, the case 10 thus includes an inner peripheral wall and an outer peripheral wall surrounding the inner peripheral wall, and the water jet is provided on the inner peripheral wall.

Specifically, during the washing process, the inner cylinder 22 rotates at a high speed, for example, the rotation speed is 180-210 revolutions per minute, water in the drainage channel 4 can rotate and upwards travel against the inner wall of the outer cylinder 33 under the action of centrifugal force, and when the water flows to the water inlet a, the water enters the accommodating cavity h through the water inlet a and travels against the top wall of the accommodating cavity h, and further can be sprayed into the inner cylinder 2 from the water spraying port, so that the phenomenon of splashing of the washing water can be effectively avoided.

The inventors found in practical studies that a cover is provided between the upper end of the inner tub 2 and the upper end of the outer tub 3, although the washing water can be prevented from being thrown out and the washing water sprayed to the lower surface of the cover can be directed to the inner tub 2. However, since the cover has a single-layer structure, when washing is performed by using strong water flow or water travels to the upper end of the drain passage 4, most of the water will be returned to the drain passage 4 due to the shielding of the cover, although some water will flow inward along the lower surface of the cover in the radial direction, the water will also be returned to the drain passage 4 due to the gravity in the flowing process, only little water will be introduced into the inner cylinder 2, the diversion effect of the cover is poor, less water will be sprayed into the inner cylinder 2, the washing effect on laundry is poor, the laundry wetting is slow, and the washing effect is poor.

In view of this, according to the cover case 1 of the laundry treatment apparatus of the embodiment of the present invention, by providing the accommodating chamber h in the case 10, water travelling upward from the inside of the drain passage 4 enters into the accommodating chamber h through the water inlet a, and since the accommodating chamber h has the bottom wall, the bottom wall of the accommodating chamber h can act as a barrier to the water in the accommodating chamber h so that the water in the accommodating chamber h is sprayed from the water inlet to the inner drum 2, at least to a certain extent, the backflow of the water in the accommodating chamber h into the drain passage 4 through the water inlet a is avoided, and then the water spraying amount from the water inlet to the inner drum 2 is increased, and by providing the first water inlet b and the second water inlet c, the number of openings and the opening area of the water spraying openings are increased, which is beneficial to further increase the water spraying amount from the water spraying opening to the inner drum 2, and further increase the impact force of the water flow to the laundry inside the inner drum 2, the washing effect and the wetting effect to the laundry are improved, and the water saving purpose is also achieved, and the washing agent is sufficiently dissolved at the same time.

According to the clothes treatment equipment provided by the embodiment of the invention, the accommodating cavity h is arranged in the box body 10 by arranging the cover box 1, so that water travelling upwards from the water discharge channel 4 enters the accommodating cavity h through the water inlet a, the bottom wall of the accommodating cavity h can play a role in blocking the water in the accommodating cavity h, so that the water in the accommodating cavity h is prevented from flowing backwards from the water spray port to the inner cylinder 2 through the water inlet a to at least a certain extent and flows into the water discharge channel 4 through the water inlet a, the water spraying amount from the water spray port to the inner cylinder 2 is improved, the opening area of the water spray port is increased by arranging the first water spray port b and the second water spray port c, the water spraying amount from the water spray port to the inner cylinder 2 is improved, the impact force of the water flow to clothes in the inner cylinder 2 is improved, the problem of clothes winding is avoided, meanwhile, the detergent can be fully dissolved, and the washing effect of the clothes treatment equipment is improved.

In some embodiments of the present invention, as shown in fig. 1, 5 and 14, the first water jet b and the second water jet c are staggered in the circumferential direction of the cartridge 10, i.e., in the up-down direction, the first water jet b and the second water jet c are spaced apart, and in the up-down direction, the first water jet b and the second water jet c are not aligned such that the first water jet b and the second water jet c are staggered in the circumferential direction. Therefore, the water spraying range of the first water spraying port b and the second water spraying port c is favorably improved, the spraying dimension of water is enhanced, and the washing effect on clothes is improved.

According to some alternative embodiments of the present invention, referring to fig. 3 and 14, the first water jet b includes a plurality of spray holes b1 spaced apart in the circumferential direction of the cartridge 10, each spray hole b1 extending in the circumferential direction of the cartridge 10. Specifically, in the washing process, the inner cylinder 2 rotates, washing water in the drainage channel 4 enters the accommodating cavity h through the water inlet a under the action of centrifugal force, part of the water can be sprayed out from the plurality of spray holes b1, and the spray action range of the first spray hole b can be improved by arranging the plurality of spray holes b1 which are spaced in the circumferential direction of the box body 10, so that the visual effect and the spray effect are improved, meanwhile, the detergent can be fully dissolved, and the washing effect of the clothes treatment equipment is improved.

In some embodiments of the present invention, the plurality of injection holes b1 are uniformly spaced apart in the circumferential direction of the cartridge body 10. Thus, the visual effect and the spraying effect can be improved, meanwhile, the detergent can be fully dissolved, and the washing effect of the clothes treatment equipment is improved.

Optionally, the number of the spray holes b1 is 10-30. For example, the number of the injection holes b1 is 15, 18, 20, 22, 24, 26 or 28, and the number of the injection holes b1 may be set according to actual needs.

According to some embodiments of the invention, any two of the plurality of injection holes b1 have the same specification. That is, the plurality of injection holes b1 are identical in shape and size. Therefore, the structure is simple, and the processing and the manufacturing are convenient.

In some embodiments of the present invention, the plurality of injection holes b1 are located at the same level. Thus, the visual effect and the spraying effect can be improved, meanwhile, the detergent can be fully dissolved, and the washing effect of the clothes treatment equipment is improved.

According to some embodiments of the present invention, the width of each nozzle b1 ranges from 2 to 3mm, that is, the distance between the opposite sidewalls of each nozzle b1 in the axial direction of the cartridge body 10, i.e., the up-down direction, ranges from 2 to 3mm. For example, the width of the orifice b1 is 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6 mm, 2.7mm, 2.8mm, or 2.9mm. Therefore, the visual effect and the flushing force can be considered.

According to some embodiments of the present invention, the length of each nozzle b1 ranges from 5mm to 10mm. That is, the length of the nozzle b1 is in the range of 5 to 10mm along the circumferential direction of the case 10. It is understood that, when the nozzle b1 extends in an arc shape in the circumferential direction of the case 10, for example, the case 10 is formed in a circular shape, the length of the nozzle b1 is the arc length when the nozzle b1 extends in an arc shape in the circumferential direction of the case 10. Therefore, the visual effect and the flushing force can be considered.

Alternatively, each orifice b1 has a length of 5.3mm, 5.5mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, or 9.5mm. Therefore, the visual effect and the flushing force can be considered.

According to some alternative embodiments of the present invention, referring to fig. 14, the second water jet c includes a plurality of injection holes c1 spaced apart in the circumferential direction of the cartridge 10, each injection hole c1 extending in the circumferential direction of the cartridge 10. Specifically, in the washing process, the inner cylinder 2 rotates, the washing water in the drainage channel 4 enters the accommodating cavity h through the water inlet a under the action of centrifugal force, a part of water can be sprayed out from the plurality of spray holes c1, and the spray action range of the second water spraying port c can be improved by arranging the plurality of spray holes c1 which are spaced in the circumferential direction of the box body 10, so that the visual effect and the spray effect are improved, meanwhile, the detergent can be fully dissolved, and the washing effect of the clothes treatment equipment is improved.

In some embodiments of the present invention, the plurality of injection holes c1 are provided at regular intervals in the circumferential direction of the cartridge body 10. Thus, the visual effect and the spraying effect can be improved, meanwhile, the detergent can be fully dissolved, and the washing effect of the clothes treatment equipment is improved.

Alternatively, the number of the injection holes c1 may range from 10 to 30. For example, the number of the injection holes c1 is 15, 18, 20, 22, 24, 26 or 28, and the number of the injection holes c1 may be set according to actual needs.

According to some embodiments of the invention, any two of the plurality of injection holes c1 have the same specification. That is, the plurality of injection holes c1 are identical in shape and size. Therefore, the structure is simple, and the processing and the manufacturing are convenient.

In some embodiments of the present invention, the plurality of injection holes c1 are located at the same level. Therefore, the visual effect and the spraying effect can be improved, the problem of clothes entanglement can be effectively avoided, meanwhile, the detergent can be fully dissolved, and the washing effect of the clothes treatment equipment is improved.

According to some embodiments of the present invention, the width of each injection hole c1 ranges from 3 to 4mm, that is, the distance between the opposite sidewalls of each injection hole c1 in the axial direction of the cartridge body 10, i.e., the up-down direction ranges from 3 to 4mm. For example, the width of the injection hole c1 is 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm or 3.9mm. Therefore, the visual effect and the flushing force can be considered.

According to some embodiments of the present invention, the length of each injection hole c1 ranges from 4 to 10mm. That is, the length of the injection hole c1 in the circumferential direction of the cartridge 10 ranges from 4 to 10mm. It is to be understood that, when the injection hole c1 extends in an arc shape in the circumferential direction of the cartridge body 10, for example, the cartridge body 10 is formed in a circular ring shape, the length of the injection hole c1 is the arc length when the injection hole c1 extends in an arc shape in the circumferential direction of the cartridge body 10. Therefore, the visual effect and the flushing force can be considered.

Alternatively, the length of each injection hole c1 is 4.5mm, 4.7mm, 5.5mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, or 9.5mm. Therefore, the visual effect and the flushing force can be considered.

In some embodiments of the present invention, as shown in fig. 14, a plurality of injection holes b1 and a plurality of injection holes c1 are alternately arranged in the circumferential direction of the cartridge body 10. Specifically, since the plurality of spray holes b1 and the plurality of spray holes c1 are spaced apart in the up-down direction and the plurality of spray holes b1 and the plurality of spray holes c1 are alternately arranged in the circumferential direction of the cartridge body 10, the inner tub 2 rotates during washing, wash water in the drain passage 4 enters the accommodating chamber h through the water inlet a under the action of centrifugal force, at least part of the wash water can be sprayed out of the plurality of spray holes c1 and the plurality of spray holes b1, and thus, water flow sprayed out of the plurality of spray holes c1 and the plurality of spray holes b1 can form a turbine-like shape, the spray dimension of the water is increased, the effect of three-dimensional spray is generated, the visual effect and the spray effect are improved, and simultaneously, the detergent can be sufficiently dissolved, and the washing effect of the laundry treatment apparatus is improved.

In some embodiments of the present invention, the included angle between the plane of the top wall of the injection hole b1 and the plane of the top wall of the injection hole c1 is 1 to 10 °. For example, the included angle is 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, 8 °, or 9 °. Specifically, when strong water flow is used for washing or water advances to the upper end of the drainage channel 4, washing water enters the accommodating cavity h through the water inlet a and advances from the spray hole b1 and the spray hole c1 along the top wall of the accommodating cavity h, the range of the included angle between the plane of the top wall of the spray hole b1 and the plane of the top wall of the spray hole c1 is 1-10 degrees, so that the spray angle of the spray hole b1 and the spray angle of the spray hole c1 are different, the sprayed water flow can be obviously layered, the spray dimension is increased, a three-dimensional spray effect is generated, the water flows sprayed by the first water spray hole b and the second water spray hole c can be seamlessly connected together in the upper and lower directions and form a similar turbine blade shape, the visual effect is good, meanwhile, the range of clothes which can be washed by different two layers of sprayed water flows is also enlarged, the impact force is large, and the washing effect on clothes is improved.

In some embodiments of the present invention, the box 10 is provided with a third water jet d, and the first water jet b, the second water jet c, and the third water jet d are disposed at intervals in the up-down direction. Specifically, the third water jet d is located below the first water jet b and the second water jet c. Therefore, by arranging the third water spraying port d, the opening area of the water spraying port is increased, the water spraying amount from the water spraying port to the inner drum 2 is favorably improved, the impact force of water flow on clothes inside the inner drum 2 is further improved, meanwhile, the detergent can be fully dissolved, and the washing effect of the clothes treatment equipment is improved.

According to some embodiments of the present invention, referring to fig. 1, the third water jet d is formed in a ring shape extending in the entire circumferential direction of the cartridge 10. Specifically, in the washing process, the inner cylinder 2 rotates, washing water in the drainage channel 4 enters the accommodating cavity h through the water inlet a under the action of centrifugal force, and the washing water in the accommodating cavity h can be sprayed out of the plurality of spray holes c1, the plurality of spray holes b1 and the third spray holes d, so that water sprayed out of the plurality of spray holes c1 and the plurality of spray holes b1 can form a turbine-like shape, water sprayed out of the annular third spray holes d can form annular water flow, and the water flow is positioned below the annular water flow, and the annular water flow jointly act to form turbine-jet cyclone water flow, so that the water spraying dimension is increased, the three-dimensional spraying effect is generated, the visual effect and the spraying effect are improved, meanwhile, the detergent can be fully dissolved, and the washing effect of the clothes treatment equipment is improved.

In some embodiments of the present invention, as shown in fig. 2, 4, and 6-7, the case 10 includes: an annular upper cover 101 and an annular lower cover 102. The annular lower cover 102 is provided at the lower side of the annular upper cover 101 to define an accommodating chamber h with the annular upper cover 101. Specifically, the annular upper cover 101 is formed in an annular shape extending in the circumferential direction of the case 10, the annular lower cover 102 is formed in an annular shape extending in the circumferential direction of the case 10, and the annular lower cover 102 is provided on the lower side of the annular upper cover 101 so that the annular upper cover 101 and the annular lower cover 102 can define the accommodation chamber h after being mated. Thus, by making the case 10 include the annular upper cover 101 and the annular lower cover 102, it is convenient to process the annular upper cover 101 and the annular lower cover 102, respectively, and then assemble the annular upper cover 101 and the annular lower cover 102, so as to facilitate the processing and manufacturing of the case 10.

In some embodiments of the present invention, the annular upper cover 101 and the annular lower cover 102 are detachably disposed, so that the disassembly and assembly of the box body 10 are facilitated, when one of the annular upper cover 101 and the annular lower cover 102 is damaged, only the damaged piece is needed to be replaced, the whole box body 10 is not needed to be replaced, and the maintenance cost is reduced.

In some embodiments of the present invention, the annular upper cover 101 and the annular lower cover 102 are clamped by a snap structure. For example, the annular upper cover 101 is provided with a plurality of buckles, the annular lower cover 102 is provided with a plurality of clamping grooves, the plurality of buckles are arranged at intervals in the circumferential direction of the annular upper cover 101, the plurality of clamping grooves are arranged at intervals in the circumferential direction of the annular lower cover 102, and the plurality of buckles are in one-to-one corresponding clamping with the plurality of clamping grooves. Therefore, the disassembly and assembly of the box body 10 are convenient, when one of the annular upper cover 101 and the annular lower cover 102 is damaged, only the damaged box body 10 is needed to be replaced, the whole box body 10 is not needed to be replaced, and the maintenance cost is reduced.

In some specific examples, the clasp is integral with the annular upper cover 101. Therefore, the structure of the integrated part not only can ensure the structure and performance stability of the buckle and the annular upper cover 101, but also is convenient to form and simple to manufacture, redundant assembly parts and connection procedures are omitted, the assembly efficiency of the buckle and the annular upper cover 101 is greatly improved, the reliability of the connection of the buckle and the annular upper cover 101 is improved, and moreover, the integral strength and stability of the integrated structure are higher, the assembly is more convenient, and the service life is longer.

In some embodiments of the invention, the clasp is an integral injection molded piece with the annular upper cover 101. The processing technology is simple, the mass production can be realized, and the production efficiency is high.

In some specific examples, the plurality of clips are disposed at regular intervals in the circumferential direction of the annular upper cover 101, the plurality of clip grooves are disposed at regular intervals in the circumferential direction of the annular lower cover 102, and the plurality of clips are snapped with the plurality of clip grooves in one-to-one correspondence. Thereby, the connection force between the annular upper cover 101 and the annular lower cover 102 can be more uniform, and the annular upper cover 101 and the annular lower cover 102 are more reliably matched.

In some embodiments of the present invention, the annular upper cover 101 is provided with a positioning column, the annular lower cover 102 is provided with a positioning blind hole, and the positioning column is matched with the positioning blind hole to play a role in pre-positioning when the annular upper cover 101 and the annular lower cover 102 are installed, so that the installation of the annular upper cover 101 and the annular lower cover 102 is facilitated, and the assembly efficiency is improved.

In some specific examples, the locator posts are integral with the annular upper cover 101. Therefore, the structure of the integrated part not only can ensure the structure and performance stability of the positioning column and the annular upper cover 101, but also is convenient to form and simple to manufacture, redundant assembly parts and connection procedures are omitted, the assembly efficiency of the positioning column and the annular upper cover 101 is greatly improved, the reliability of connection of the buckle and the annular upper cover 101 is improved, moreover, the integral strength and stability of the integrated structure are higher, the assembly is more convenient, and the service life is longer.

In some embodiments of the invention, the positioning posts are integrally injection molded with the annular upper cover 101. The processing technology is simple, the mass production can be realized, and the production efficiency is high.

According to some embodiments of the invention, the annular upper cover 101 is connected to the annular lower cover 102 by fasteners. Specifically, a screw column is provided on the lower surface of the annular upper cover 101, a screw hole is provided on the annular lower cover 102, and screws are arranged through the screw hole and the screw column from bottom to top to realize detachable connection of the annular upper cover 101 and the annular lower cover 102. Thus, the reliability of connection between the annular upper cover 101 and the annular lower cover 102 is improved, and the assembly and disassembly are facilitated.

Optionally, the number of screw columns provided on the lower surface of the annular upper cover 101 is plural, the plural screw columns are disposed at intervals in the circumferential direction of the annular upper cover 101, the annular lower cover 102 is provided with plural screw holes, the plural screw holes are disposed at intervals in the circumferential direction of the annular lower cover 102, the plural screws are plural, the plural screw holes and the plural screw columns are in one-to-one correspondence, and each screw is disposed through the corresponding screw hole and screw column. Thus, the reliability of connection between the annular upper cover 101 and the annular lower cover 102 is improved, and the assembly and disassembly are facilitated.

Alternatively, the plurality of screw posts are disposed at regular intervals in the circumferential direction of the annular upper cover 101, and the plurality of screw holes are disposed at regular intervals in the circumferential direction of the annular lower cover 102. Therefore, the connection acting force between the annular upper cover 101 and the annular lower cover 102 can be more uniform, and the reliability of the cooperation of the annular upper cover 101 and the annular lower cover 102 can be improved.

In some specific examples, the screw posts are integral with the annular upper cover 101. Therefore, the structure of the integral part not only can ensure the structure and performance stability of the screw column and the annular upper cover 101, but also is convenient to form and simple to manufacture, redundant assembly parts and connection procedures are omitted, the assembly efficiency of the screw column and the annular upper cover 101 is greatly improved, the reliability of connection of the buckle and the annular upper cover 101 is improved, moreover, the integral strength and stability of the integrally formed structure are higher, the assembly is more convenient, and the service life is longer.

In some embodiments of the invention, the screw posts are integrally injection molded with the annular upper cover 101. Therefore, the processing technology is simple, batch production can be realized, and the production efficiency is high.

In some embodiments of the invention, the annular upper cover 101 and the annular lower cover 102 are non-detachably disposed. For example, the annular upper cover 101 and the annular lower cover 102 are welded (e.g., hot plate welded). Thereby, the reliability of the connection of the annular upper cover 101 and the annular lower cover 102 is advantageously improved.

According to some embodiments of the invention, the cartridge 10 is an integral piece. Therefore, the processing technology is simple, batch production can be realized, and the production efficiency is high.

According to some embodiments of the present invention, as shown in fig. 7, the first water jet b and the second water jet c are provided on the annular upper cover 101. Specifically, for example, as shown in fig. 5 and 7, in the radial direction and in the outside-to-inside direction, the annular upper cover 101 extends obliquely upward and then extends obliquely downward, and the first water jet b and the second water jet c are provided on the portion of the annular upper cover 101 extending obliquely downward in the radial direction and in the outside-to-inside direction. Thus, the structure is simple.

Alternatively, the annular upper cover 101 extends in an arc shape in the radial direction and in the outside-to-inside direction. Thereby being beneficial to improving the flow guiding effect on water.

According to some embodiments of the present invention, as shown in fig. 5 and 7, the radially inner end of the annular upper cover 101 is spaced apart from the radially inner end of the annular lower cover 102 to define the third water jet d, thereby defining the annular third water jet d, which is simple in structure. It will be appreciated that the radial direction is a direction perpendicular to the central axis of the case 10, the radial inner end of the annular upper cover 101 means an end close to the central axis of the case 10, and the inner end of the annular lower cover 102 means an end close to the central axis of the case 10.

Specifically, for example, as shown in fig. 5, the radially inner end of the annular upper cover 101 is positioned at the inner circumference of the radially inner end of the annular lower cover 102 to define the third water spray d, that is, the radially inner end of the annular lower cover 102 is positioned at the outer circumference of the radially inner end of the annular upper cover 101, so that the radially inner end of the annular upper cover 101 can guide water, thereby improving the impact force of water flow to the laundry inside the inner tub 2, and at the same time, the detergent can be sufficiently dissolved, thereby improving the washing effect of the laundry treating apparatus.

According to some embodiments of the present invention, the radially outer end of the annular upper cover 101 is located at the outer circumference of the radially outer end of the annular lower cover 102 to define the water inlet a with the radially outer end of the annular lower cover 102, so that the water inlet a is formed in a ring shape. Therefore, the washing machine is simple in structure, washing water in the whole circumferential direction of the water discharge channel 4 can upwards travel along the inner wall of the outer barrel 3 when the inner barrel 2 rotates, the annular water inlet a can facilitate the washing water in the whole circumferential direction to enter the accommodating cavity h, the impact force of water flow on clothes in the inner barrel 2 is improved, meanwhile, the detergent can be fully dissolved, and the washing effect of the clothes treatment equipment is improved.

In some embodiments of the present invention, as shown in fig. 5, the angle α between the tangent of the radially inner end of the lower surface of the annular upper cover 101 and the plane of the top wall of the injection hole c1 is in the range of 10 to 30 °. For example, α is 15 °, 16 °, 17 °, 18 °, 19 °, 20 °, 21 °, 22 °, 23 °, 24 °, 25 °, 26 °, 27 °, 28 °, or 29 °. Therefore, the difference between the injection angle of the injection hole c1 and the injection angle of the third water jet d is more obvious, the injected water flow can further achieve the effect of the turbo cyclone, the visual effect is good, the range of clothes which can be washed by the injected water flow is enlarged, and the washing effect on the clothes is improved.

According to one embodiment of the present invention, the angle between the tangent line of the innermost end of the lower surface of the annular upper cover 101 and the horizontal plane ranges from 25 ° to 45 °. Therefore, the water flow can not generate splash due to collision or impact with the cylinder body, and is guided into the inner cylinder 22, so that the washing effect is improved, and meanwhile, a good visual effect can be formed.

To facilitate the attachment of the cartridge 10 to the outer cylinder 3, the radially outer end of the annular upper cover 101 is provided with a snap 1011 adapted to snap onto the upper end of the outer cylinder 3, as shown in fig. 5 and 13. Alternatively, the catch 1011 may be an annular groove formed at the outer periphery of the annular upper cover 101, the opening of the annular groove facing the bottom of the outer cylinder 3, the upper end of the outer cylinder 3 being inserted inside the annular groove. Thus, water flow can be effectively prevented from escaping from the outer periphery of the annular cylinder cover.

In some embodiments of the present invention, as shown in fig. 5, the annular lower cover 102 extends obliquely upward and then obliquely downward in a radial direction and in an outside-to-inside direction, for example, the annular lower cover 102 extends in an arc shape in the radial direction and in the outside-to-inside direction. Thereby being beneficial to improving the flow guiding effect on water.

In order to enhance the water guiding effect of the cartridge 10, in some embodiments of the present invention, as shown in fig. 8, a water guiding portion 103 is provided in the accommodating chamber h, and the water guiding portion 103 is configured to guide water at the water inlet a to the first water spraying port b and the second water spraying port c.

In some embodiments of the present invention, as shown in fig. 9, the water guiding part 103 includes a plurality of dominant water ribs 1031, the plurality of dominant water ribs 1031 are disposed on the lower surface of the annular upper cover 101, the plurality of dominant water ribs 1031 are distributed at intervals along the circumferential direction of the accommodating cavity h and are oriented uniformly, each dominant water rib 1031 extends from the radially outer end of the annular upper cover 101 to the radially inner end of the annular upper cover 101, and the spray holes b1 and the spray holes c1 (for example, one spray hole b1 and one spray hole c 1) are disposed between two adjacent dominant water ribs 1031. In the process of washing clothes, the inner cylinder 2 rotates in the outer cylinder 3, water in the inner cylinder 2 enters the water discharge channel 4 under the action of centrifugal force and the water discharge wings, along with rising of the water level, water flow is thrown onto the lower surface of the annular upper cover 101 through the water inlet a, and under the guidance of the main water ribs 1031, the water flow can be guided to the space between two adjacent main water ribs 1031, so that the water flow is sprayed into the inner cylinder 2 along the main water ribs 1031 sequentially through the spray holes b1, the spray holes c1 and the third spray holes d, so that strong scouring washing can be carried out on the clothes, and strong mechanical force action is applied to the detergent to enable the detergent to be fully dissolved.

In some embodiments of the present invention, the water dominant ribs 1031 are integrally formed with the annular upper cover 101. Therefore, the structure of the integral part not only can ensure the structure and performance stability of the dominant water rib 1031 and the annular upper cover 101, but also is convenient to form and simple to manufacture, redundant assembly parts and connection procedures are omitted, the assembly efficiency of the dominant water rib 1031 and the annular upper cover 101 is greatly improved, the connection reliability of the dominant water rib 1031 and the annular upper cover 101 is ensured, and moreover, the integral strength and stability of the integrally formed structure are higher, the assembly is more convenient, and the service life is longer.

In some embodiments of the invention, the dominant water ribs 1031 are integrally injection molded with the annular upper cover 101. The processing technology is simple, the mass production can be realized, and the production efficiency is high.

In some embodiments of the present invention, the same side surface of the plurality of dominant water ribs 1031 in the circumferential direction of the case 10 is a water blocking surface 10311. That is, each of the plurality of dominant water ribs 1031 has a water blocking surface 10311, and the water blocking surfaces 10311 of the plurality of dominant water ribs 1031 are located on the same side in the circumferential direction of the case 10.

Specifically, the installation position of the water blocking surface 10311 and the extending direction of the main water rib 1031 are related to the rotation direction of the inner tube 2, and the main water rib 1031 is inclined in a clockwise direction or an anticlockwise direction in the radially outward direction of the case 10, wherein the inclination direction of the main water rib 1031 is opposite to the rotation direction of the inner tube 2. Specifically, when the inner cylinder 2 rotates in a clockwise direction with respect to the outer cylinder 3, the water-guiding ribs 1031 are inclined in a counterclockwise direction in a radially outward direction of the case 10; when the inner cylinder 2 rotates in a counterclockwise direction relative to the outer cylinder 3, the main water ribs 1031 incline clockwise along the radial outward direction of the box body 10, so that water flow is guided into the inner cylinder 2, the impact force of the water flow on clothes in the inner cylinder 2 is improved, and the detergent is fully dissolved. In the rotational direction of the inner tube 2, the upstream side surface of the main water rib 1031 is a water blocking surface 10311, and water blocking is performed by the upstream side surface of the main water rib 1031.

In some embodiments of the present invention, as shown in fig. 9, the first water jet b is located above the second water jet c, and it is understood that the upper direction herein is the direction when the cartridge 1 is normally placed on the outer cylinder 3, the spray hole b1 located between two adjacent main water ribs 1031 and the spray hole c1 in the spray hole c1 are located adjacent to the corresponding water blocking surface 10311, and each water blocking surface 10311 is provided with a radially inwardly extending auxiliary water guide rib 1032, and the auxiliary water guide rib 1032 located between two adjacent main water ribs 1031 is used for guiding water at the water inlet a to the spray hole b1 located between two adjacent main water ribs 1031. Specifically, since the nozzle b1 between two adjacent leading ribs 1031 is further away from the water blocking surface 10311, the provision of the sub-ribs 1032 can ensure that water is ejected from the nozzle b1.

In some embodiments of the present invention, one end of the sub water bar 1032 located between two adjacent main water bars 1031 is connected to the water blocking surface 10311 (e.g., a middle position in the length direction of the water blocking surface 10311) of one of the main water bars 1031, and the other end extends to a side of the injection hole c1 away from the water blocking surface 10311 of the main water bar 1031 such that the corresponding injection hole b1 is located between the sub water bar 1032 and the other main water bar 1031, and the sub water bar 1032 is connected to the lower surface of the annular upper cover 101. Therefore, the structure is simple, and the flow guiding effect is good.

Further, in order to further secure the water spouting from the injection hole c1, a portion of the lower surface of the sub water guide 1032 between the injection hole c1 and the injection hole b1, that is, the flush portion 10321, is flush with the injection hole b1 in the radial direction of the cartridge 10.

In some embodiments of the present invention, the width dimension of the third water jet d is in the range of 1 to 2mm, that is, the distance between the opposite side walls of the third water jet d in the axial direction of the cartridge 10 is in the range of 1 to 2mm, for example, the width of the third water jet d is 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, or 1.8mm. Thus, the third water jet d is an annular long and narrow water jet extending along the circumferential direction of the box body 10, which is beneficial to improving the speed and pressure of water flow sprayed from the third water jet d, improving the washing strength, improving the washing effect on the clothes in the inner barrel 2 and improving the visual effect.

According to some embodiments of the present invention, the annular upper cover 101, the primary water ribs 1031, and the secondary water ribs 1032 are one piece. Therefore, the structure of the integral piece not only can ensure the structure and performance stability of the annular upper cover 101, the main water rib 1031 and the auxiliary water rib 1032, but also is convenient to form and simple to manufacture, and omits redundant assembly parts and connecting procedures, so that the assembly efficiency of the annular upper cover 101, the main water rib 1031 and the auxiliary water rib 1032 is greatly improved, the connection reliability of the annular upper cover 101, the main water rib 1031 and the auxiliary water rib 1032 is ensured, and moreover, the integral strength and stability of the integrally formed structure are higher, the assembly is more convenient, and the service life is longer.

In some specific examples, the annular upper cover 101, the primary water ribs 1031, and the secondary water ribs 1032 are integrally injection molded. Therefore, the processing technology is simple, batch production can be realized, and the production efficiency is high.

In some embodiments of the present invention, as shown in fig. 5, the radial width dimension n of the water inlet a has a value ranging from 10 to 15mm, that is, the distance between the radial inner side wall of the water inlet a and the radial outer side wall of the water inlet a in the radial direction has a value ranging from 10 to 15mm. Therefore, by enabling the radial width dimension n of the water inlet a to be not smaller than 10mm, in the process of washing clothes, the inner barrel 2 rotates in the outer barrel 3, water in the inner barrel 2 enters the water discharge channel 4 due to centrifugal force and the action of the water discharge wings, water is thrown into the accommodating cavity h through the water inlet a along with rising of the water level, and the problems that washing water in the accommodating cavity h is reduced and pressure is reduced due to the fact that the water cannot enter the accommodating cavity h through the water inlet a caused by undersize, water sprayed from the water spraying port has no pressure, the visual effect is poor and the washing effect on clothes is poor are avoided; by making the radial width dimension of the water inlet a not greater than 15mm, the bottom wall of the accommodating cavity h can be effectively utilized to block the water in the accommodating cavity h so that the water in the accommodating cavity h is sprayed from the water spraying port to the inner cylinder 2, and the phenomenon that the water in the accommodating cavity h flows back into the drainage channel 4 due to too small area of the bottom wall of the accommodating cavity h caused by too large radial width dimension of the water inlet a is avoided.

Specifically, for example, the radial width dimension of the water inlet a is 11mm, 11.5mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm or 14.5mm.

In the description of the present invention, it should 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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the invention, a "first feature" or "second feature" may include one or more of such features. In the description of the present invention, "plurality" means two or more.

In the description of the invention, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween. In the description of the invention, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

Other constructions of the laundry treating apparatus according to the embodiment of the present invention, such as pulsator and control panel, etc., and operations thereof are known to those of ordinary skill in the art, and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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 invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cover box (1) of a laundry treatment apparatus, characterized in that the laundry treatment apparatus includes an outer tub (3) and an inner tub (2), the inner tub (2) is provided in the outer tub (3) and rotatable with respect to the outer tub (3), a drainage passage is formed between an outer wall of the inner tub (2) and an inner wall of the outer tub (3), the cover box (1) includes:

the box body (10), the box body (10) is suitable for being arranged at the upper end of the outer cylinder (3) and is positioned above the inner cylinder (2), the box body (10) is formed into an annular shape extending along the circumferential direction of the outer cylinder (3), an annular containing cavity (h) extending along the circumferential direction of the box body (10) is arranged in the box body (10), a water inlet (a) is arranged at the bottom side of the box body (10), a first water spray port (b) and a second water spray port (c) suitable for spraying water to the inner cylinder (2) are arranged on the inner side peripheral wall of the box body (10), and the first water spray port (b) and the second water spray port (c) are arranged at intervals in the up-down direction;

the first water jet (b) and the second water jet (c) are staggered in the circumferential direction of the box body (10);

the first water jet (b) comprises a plurality of spray holes (b 1) which are arranged at intervals along the circumferential direction of the box body (10), each spray hole (b 1) extends along the circumferential direction of the box body (10), and the second water jet (c) comprises a plurality of spray holes (c 1) which are arranged at intervals along the circumferential direction of the box body (10), and each spray hole (c 1) extends along the circumferential direction of the box body (10);

The included angle between the plane where the top wall of the spray hole (b 1) is positioned and the plane where the top wall of the spray hole (c 1) is positioned is 1-10 degrees;

the injection angle of the injection hole (b 1) and the injection angle of the injection hole (c 1) are different.

2. The cover case (1) of a laundry treatment apparatus according to claim 1, characterized in that a plurality of the spray holes (b 1) and a plurality of the spray holes (c 1) are alternately arranged in a circumferential direction of the case body (10).

3. The cover case (1) of a laundry treatment apparatus according to claim 1, characterized in that the width of each of the spray holes (b 1) has a value ranging from 2 to 3mm; and/or the length of each spray hole (b 1) is 5-10 mm.

4. The cover case (1) of a laundry treatment apparatus according to claim 1, characterized in that the width of each injection hole (c 1) has a value ranging from 3 to 4mm; and/or, the length of each jet hole (c 1) is 4-10 mm.

5. The cover box (1) of a laundry treatment apparatus according to claim 1, characterized in that a third water jet (d) is provided on the box body (10), the first water jet (b), the second water jet (c) and the third water jet (d) are provided at intervals in the up-down direction and the third water jet (d) is located below the first water jet (b) and the second water jet (c), the third water jet (d) being formed in a ring shape extending in the entire circumferential direction of the box body (10).

6. The cover cartridge (1) of a laundry treatment apparatus according to claim 5, characterized in that the cartridge body (10) comprises:

an annular upper cover (101), wherein the first water spraying port (b) and the second water spraying port (c) are arranged on the annular upper cover (101); and

the annular lower cover (102), annular lower cover (102) are established in the downside of annular upper cover (101) in order to with annular upper cover (101) define holding chamber (h), the radially inner of annular upper cover (101) with the radially inner of annular lower cover (102) is spaced apart in order to define third water jet (d), the radially outer end of annular upper cover (101) is located the periphery of the radially outer end of annular lower cover (102) in order to with the radially outer end of annular lower cover (102) defines water inlet (a).

7. The spin cover case (1) of the laundry treatment apparatus according to claim 6, characterized in that the radially inner end of the annular upper cover (101) is located at the inner periphery of the radially inner end of the annular lower cover (102), and the value of the angle between the tangent line of the radially inner end of the lower surface of the annular upper cover (101) and the plane of the top wall of the injection hole (c 1) is in the range of 10 to 30 °.

8. The cover box (1) of a laundry treatment apparatus according to claim 6, characterized in that a water guiding part (103) is provided in the accommodation chamber (h), the water guiding part (103) being configured for guiding water at the water inlet (a) to the first water jet (b) and the second water jet (c).

9. The spin cover case (1) of the laundry treatment apparatus according to claim 8, characterized in that a plurality of the spray holes (b 1) and a plurality of the spray holes (c 1) are alternately arranged in a circumferential direction of the case body (10), the water guiding portion (103) includes a plurality of the dominant water ribs (1031), the plurality of the dominant water ribs (1031) are provided on a lower surface of the annular upper cover (101), the plurality of the dominant water ribs (1031) are distributed at intervals in the circumferential direction of the accommodation chamber (h) and are oriented uniformly, each of the dominant water ribs (1031) extends from a radially outer end of the annular upper cover (101) to a radially inner end of the annular upper cover (101), and the spray holes (b 1) and the spray holes (c 1) are provided between two adjacent dominant water ribs (1031).

10. The cover box (1) of the laundry treatment apparatus according to claim 9, characterized in that the first water jet (b) is located above the second water jet (c), the same side surface of the plurality of the main water ribs (1031) in the circumferential direction of the box body (10) is a water blocking surface (10311), the spray hole (b 1) located between the adjacent two main water ribs (1031) and the spray hole (c 1) of the spray holes (c 1) are located adjacent to the corresponding water blocking surface (10311), a sub water guide rib (1032) extending radially inward is provided on each water blocking surface (10311), and the sub water guide rib (1032) located between the adjacent two main water ribs (1031) is used for guiding water at the water inlet (a) to the spray hole (b 1) located between the adjacent two main water ribs (1031).

11. The cover case (1) of a laundry treatment apparatus according to claim 10, characterized in that the inner drum (2) rotates clockwise or counter-clockwise with respect to the outer drum (3);

the main water ribs (1031) incline clockwise or anticlockwise along the radial outward direction of the box body (10), wherein the inclination direction of the main water ribs (1031) is opposite to the rotation direction of the inner cylinder (2);

in the rotation direction of the inner cylinder (2), the upstream side surface of the main water rib (1031) is a water blocking surface (10311).

12. The cover case (1) of a laundry treating apparatus according to claim 10, wherein one end of the sub water bar (1032) located between two adjacent ones of the main water bars (1031) is connected to the water blocking surface (10311) of one of the main water bars (1031), and the other end extends to a side of the injection hole (c 1) away from the water blocking surface (10311) of the main water bar (1031) such that the corresponding injection hole (b 1) is located between the sub water bar (1032) and the other main water bar (1031).

13. The cover box (1) of a laundry treatment apparatus according to claim 5, characterized in that the width dimension of the third water jet (d) has a value ranging from 1 to 2mm.

14. The cover case (1) of a laundry treatment apparatus according to claim 1, characterized in that the water inlet (a) is formed in a ring shape extending in a circumferential direction of the case body (10), and a radial width dimension of the water inlet (a) is 10 to 15mm.

15. Laundry treatment apparatus, characterized in that it comprises a cartridge (1) according to any one of claims 1-14.