Inner barrel of washing machine

By setting a flow guide structure and a one-way opening door on the inner drum of the washing machine, the problems of inner drum deformation and stability are solved, achieving more efficient fluid collection and extending service life.

CN224186464UActive Publication Date: 2026-05-01GUIZHOU XIGUANG INFORMATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUIZHOU XIGUANG INFORMATION TECHNOLOGY CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing washing machine drum undergoes significant deformation during the spin-drying process due to the slotted filter structure, affecting stability and lifespan, and also reducing volume.

Method used

A flow guiding structure is installed on the inner drum of the washing machine to guide the fluid to the fluid inlet, thereby enhancing the stability of the inner drum and improving the fluid collection capacity. The flow guiding channel and one-way opening door further enhance the fluid flow rate and filtration effect.

Benefits of technology

It improves the stability of the inner drum and the fluid collection capacity, extends the service life of the washing machine, and avoids inner drum deformation and volume reduction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of washing equipment, in particular to a washing machine inner barrel which comprises a washing machine inner barrel body, dewatering holes are evenly distributed in the washing machine inner barrel body, a collecting and filtering device is arranged on the inner wall of the washing machine inner barrel body, and a fluid inlet is formed in the collecting and filtering device. A flow guide structure for guiding fluid to the fluid inlet is arranged on the washing machine inner barrel body. The flow guide structure arranged on the washing machine inner barrel body and used for guiding fluid to the fluid inlet is used for guaranteeing the collecting capacity of the washing machine for bristles and the like, meanwhile, the strength of the washing machine inner barrel is improved through the flow guide structure, and the stability of the washing machine in the running process is improved.
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Description

A washing machine inner drum Technical Field

[0001] This utility model relates to the field of washing equipment, specifically to an inner drum of a washing machine. Background Technology

[0002] In existing technologies, the inner drum has grooves on its circumference for installing external filter collection structures. However, for manufacturers with thinner inner drum walls, this grooved inner drum causes increased deformation during high-speed spin-drying due to the centrifugal force generated by the clothes on the inner drum. This reduces the stability of the washing machine and necessitates manufacturers to design and reduce the inner drum diameter, i.e., reduce the washing volume, in order to achieve a reasonable operating range between the inner and outer drums, resulting in a smaller volume.

[0003] The increased centrifugal force generated by the grooved inner drum due to the large amount of clothing and the high spin speed during the spin-drying process leads to greater deformation of the inner drum. This causes tension and compression on the large collection box of the impeller filter and the fixed connection of the lifting ribs of the drum washing machine filter. Consequently, the impeller collection box, the drum lifting ribs, and the fixed ends of the inner drum that are installed and disassembled under long-term stress may loosen, reducing the service life of the equipment. Summary of the Invention

[0004] To address the aforementioned issues, this utility model provides a washing machine inner drum with a simple structure that, while ensuring the washing machine's ability to collect lint and other debris, further improves the stability of the inner drum, reduces the risk of deformation during operation, and extends the service life of the washing machine.

[0005] This utility model discloses a washing machine inner drum, including a washing machine inner drum body, on which dehydration holes are evenly distributed, and a collection and filtration device is provided on the inner wall of the washing machine inner drum body. The collection and filtration device is provided with a fluid inlet, and the washing machine inner drum body is provided with a flow guiding structure to guide the fluid to the fluid inlet.

[0006] Preferably, the collection and filtration device and the flow guiding structure are located on the inner and outer sides of the inner drum of the washing machine, respectively.

[0007] Preferably, the flow guiding structure includes a through hole penetrating the inner drum body of the washing machine and a flow guiding channel located on the outside of the inner drum body of the washing machine. The flow guiding channel is fixedly installed on the inner drum body of the washing machine, and one end is connected to the through hole.

[0008] Preferably, the end of the guide channel away from the through hole is bent and extends circumferentially along the inner drum of the washing machine.

[0009] Preferably, the central axis of the flow guide channel is located on the cross-section of the inner drum of the washing machine.

[0010] Preferably, multiple flow guiding structures are evenly distributed along the axial direction of the inner drum of the washing machine.

[0011] Preferably, the ends of the flow channels on adjacent flow guiding structures that are away from the through holes extend in the same direction or in opposite directions.

[0012] Preferably, the flow channel includes a flow guide plate fixedly connected to the inner drum body of the washing machine. The area enclosed by the flow guide plate and the inner drum body after bending is the flow channel, and the through hole connected to the flow channel is located inside the flow channel.

[0013] Preferably, the washing machine is a pulsator washing machine. Several collection boxes are detachably connected to the inner wall of the inner drum body along the circumference of the inner drum body. Each collection box is equipped with the collection and filtration device. A through hole is opened on the area of ​​the inner drum body corresponding to the collection box. The flow guiding structure is provided on the outer side of the area of ​​the inner drum body corresponding to the collection box. The flow guiding structure is connected to the fluid inlet through the through hole.

[0014] Preferably, the washing machine is a drum washing machine. Several lifting ribs are detachably connected to the inner wall of the inner drum body along the circumference of the inner drum body. The collection and filtration device is provided in the lifting ribs. Through holes are opened on the area of ​​the inner drum body corresponding to the lifting ribs. The flow guiding structure is provided on the outer side of the area of ​​the inner drum body corresponding to the lifting ribs. The flow guiding structure is connected to the fluid inlet through the through holes.

[0015] Preferably, the fluid inlet is sealed with a one-way opening door that opens due to fluid impact.

[0016] Preferably, one end of the one-way opening door is a connecting end, and the other end is an opening end. The connecting end is connected to the collection and filtration device, and the flow channel guides the fluid to the fluid inlet and impacts the opening end of the one-way opening door.

[0017] This invention has a simple structure and, while ensuring the washing machine's ability to collect lint and other debris, further improves the stability of the inner drum, reduces the risk of deformation during operation, and extends the service life of the washing machine.

[0018] This invention utilizes a flow guiding structure installed on the inner drum of the washing machine to guide the fluid to the fluid inlet, ensuring the washing machine's ability to collect lint and other debris. At the same time, the flow guiding structure increases the strength of the inner drum, which helps to improve the stability of the washing machine during operation.

[0019] The flow channel of this invention guides the fluid to the fluid inlet and impacts the opening end of the one-way opening door, increasing the flow rate of the fluid into the collection and filtration device and improving the collection and filtration effect.

[0020] This utility model sets up multiple flow channels to ensure the inlet flow rate of the fluid. Because it occupies little space between the inner and outer drums of the washing machine and improves the strength of the inner drum, it avoids the problem of needing to increase the distance between the inner and outer drums due to the reasonable gap required for the through holes arranged by the flow guiding structure, which would otherwise cause the washing machine's volume design to be reduced.

[0021] This invention features a flow guide structure on the inner drum of a washing machine, achieved through die stamping. This simplifies the production process, reduces the additional costs associated with producing the flow guide structure, and minimizes the excessive procedures and costs incurred in connecting the flow guide structure to the inner drum.

[0022] This invention is beneficial for improving the production efficiency of assembly line operations and reducing production and material costs. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the structure of this utility model installed in a pulsator washing machine.

[0024] Figure 2 is an enlarged view of point A in Figure 1.

[0025] Figure 3 is an enlarged view of section B in Figure 1.

[0026] Figure 4 is a schematic diagram of the structure of this utility model installed in a drum washing machine.

[0027] Figure 5 is an enlarged view of point C in Figure 4.

[0028] Figure 6 is an enlarged view of point D in Figure 4.

[0029] Reference numerals: 1-Washing machine inner drum body, 2-Collection box, 3-One-way opening door, 4-Fluid inlet, 5-Through hole, 6-Guide plate, 7-Lifting rib. Detailed Implementation

[0030] The present invention will be described below with reference to the accompanying drawings.

[0031] Referring to Figures 1-4, this utility model discloses a washing machine inner drum, including a washing machine inner drum body 1. The washing machine inner drum body 1 has evenly distributed dehydration holes. A collection and filtration device is provided on the inner wall of the washing machine inner drum body 1. The collection and filtration device is provided with a fluid inlet 4. The washing machine inner drum body 1 is provided with a flow guiding structure to guide the fluid to the fluid inlet 4.

[0032] During use, the fluid flows into the fluid inlet 4 through the flow guide structure, which helps to increase the flow rate of the fluid into the collection and filtration device and improve the collection and filtration effect. At the same time, since the flow guide structure is set on the inner drum body 1 of the washing machine, it helps to improve the stability of the inner drum, reduce the risk of deformation of the inner drum during operation, and extend the service life of the washing machine.

[0033] In one embodiment, the collection and filtration device and the flow guiding structure are located on the inner and outer sides of the inner drum body 1 of the washing machine, respectively.

[0034] In one embodiment, the flow guiding structure includes a through hole 5 penetrating the inner drum body 1 of the washing machine and a flow guiding channel located on the outside of the inner drum body 1 of the washing machine. The flow guiding channel is fixedly installed on the inner drum body 1 of the washing machine, and one end is connected to the through hole 5, as shown in Figures 2 and 4.

[0035] In one embodiment, the end of the guide channel away from the through hole 5 is bent and extends circumferentially along the inner drum body 1 of the washing machine.

[0036] The central axis of the flow channel is located on the cross-section of the inner drum body 1 of the washing machine.

[0037] In one embodiment, multiple flow guiding structures are evenly distributed along the axial direction of the inner drum body 1 of the washing machine, and can be set as one or more columns as needed.

[0038] In one embodiment, the end of the flow channel on the adjacent flow guiding structure that is away from the through hole 5 extends in the same direction or in the opposite direction, so that when the fluid and the inner drum body 1 of the washing machine rotate relative to each other, the fluid can be introduced into the fluid inlet 4 regardless of whether the rotation direction is the same or opposite, and the collection and filtration device can be used to collect and filter the burrs, etc.

[0039] In one embodiment, the flow channel includes a flow guide plate 7 fixedly connected to the inner drum body 1 of the washing machine. The area enclosed by the flow guide plate 7 and the inner drum body 1 after bending is the flow channel, and the through hole 5 connected to the flow channel is located inside the flow channel. One side of the flow guide plate 7 is fixedly connected to the inner drum body 1 after bending, which helps to improve the stability of the inner drum.

[0040] In one embodiment, the washing machine is a pulsator washing machine. Several collection boxes 2 are detachably connected to the inner wall of the inner drum body 1 along the circumference of the inner drum body 1. Each collection box 2 is provided with the collection and filtration device. The collection box 2 has a through hole on the area corresponding to the inner drum body 1. The flow guiding structure is provided on the outer side of the area corresponding to the inner drum body 1. The flow guiding structure is connected to the fluid inlet 4 through the through hole.

[0041] In one embodiment, the washing machine is a drum washing machine. Several lifting ribs 7 are detachably connected to the inner wall of the inner drum body 1 along the circumference of the inner drum body 1. The collection and filtration device is provided in the lifting ribs 7. Through holes are opened on the area of ​​the inner drum body 1 corresponding to the lifting ribs 7. The flow guiding structure is provided on the outer side of the area of ​​the inner drum body 1 corresponding to the lifting ribs 7. The flow guiding structure is connected to the fluid inlet 4 through the through holes.

[0042] In one embodiment, a one-way opening door 3 is provided at the fluid inlet 4 to prevent collected lint and other debris from flowing out of the fluid inlet 4, thus ensuring the collection and filtration effect. Multiple one-way opening doors 3 can be provided as needed, or they can be set according to the setting position and direction of the flow guide channel. For example, the flow guide channel can be set in two rows, with the two rows of flow guide channels corresponding to the same fluid inlet 4. The ends of the two rows of flow guide channels that are away from the inner drum body 1 of the washing machine extend in opposite directions. In this case, the one-way opening doors 3 on the fluid inlet 4 are set in pairs, and the opening ends of the same pair of one-way opening doors 3 are set close to each other.

[0043] In one embodiment, one end of the one-way opening door 3 is a connecting end, and the other end is an opening end. The connecting end is connected to the collection and filtration device. The flow channel guides the fluid to the fluid inlet 4 and then impacts the opening end of the one-way opening door 3, which helps to increase the opening degree of the one-way opening door 3 and improve the collection and filtration effect.

Claims

1. A washing machine inner drum, comprising a washing machine inner drum body, wherein the washing machine inner drum body is provided with evenly distributed dehydration holes, characterized in that, The inner wall of the washing machine drum is provided with a collection and filtration device, the collection and filtration device is provided with a fluid inlet, and the washing machine drum is provided with a flow guiding structure to guide the fluid to the fluid inlet.

2. The washing machine inner drum as described in claim 1, characterized in that, The collection and filtration device and the flow guiding structure are located on the inner and outer sides of the inner drum of the washing machine, respectively.

3. The washing machine inner drum as described in claim 1, characterized in that, The flow guiding structure includes a through hole penetrating the inner drum body of the washing machine and a flow guiding channel located on the outside of the inner drum body of the washing machine. The flow guiding channel is fixedly installed on the inner drum body of the washing machine, and one end is connected to the through hole.

4. The washing machine inner drum as described in claim 3, characterized in that, The end of the flow channel away from the through hole is bent and extends circumferentially along the inner drum of the washing machine.

5. The washing machine inner drum as described in claim 4, characterized in that, The central axis of the flow guide channel is located on the cross-section of the inner drum of the washing machine.

6. The washing machine inner drum as described in claim 5, characterized in that, The flow guiding structure has multiple components evenly distributed along the axial direction of the inner drum of the washing machine.

7. The washing machine inner drum as described in claim 6, characterized in that, On adjacent flow guiding structures, the end of the flow guiding channel away from the through hole extends in the same direction or in the opposite direction.

8. The washing machine inner drum as described in claim 3, characterized in that, The flow channel includes a flow guide plate fixedly connected to the inner drum body of the washing machine. The area enclosed by the flow guide plate and the inner drum body after bending is the flow channel. The through hole connected to the flow channel is located inside the flow channel.

9. The washing machine inner drum as described in claim 1, characterized in that, The washing machine is a pulsator washing machine. Several collection boxes are detachably connected to the inner wall of the inner drum body along the circumference of the inner drum body. Each collection box is equipped with the collection and filtration device. A through hole is opened on the area of ​​the inner drum body corresponding to the collection box. The flow guiding structure is provided on the outer side of the area of ​​the inner drum body corresponding to the collection box. The flow guiding structure is connected to the fluid inlet through the through hole.

10. A washing machine inner drum as described in claim 1, characterized in that, The washing machine is a drum washing machine. Several lifting ribs are detachably connected to the inner wall of the inner drum body along the circumference of the inner drum body. The collection and filtration device is installed in the lifting ribs. Through holes are opened on the area of ​​the inner drum body corresponding to the lifting ribs. The flow guiding structure is provided on the outer side of the area of ​​the inner drum body corresponding to the lifting ribs. The flow guiding structure is connected to the fluid inlet through the through holes.

11. The washing machine inner drum as described in claim 1, characterized in that, The fluid inlet is sealed with a one-way opening door that opens due to fluid impact.

12. The washing machine inner drum as described in claim 11, characterized in that, One end of the one-way opening door is the connecting end, and the other end is the opening end. The connecting end is connected to the collection and filtration device. The flow channel guides the fluid to the fluid inlet and then impacts the opening end of the one-way opening door.