A washing machine inner tub
By incorporating auxiliary reinforcement and flow guiding structures into the inner drum of the washing machine, the problems of inner drum deformation and connection damage are solved, improving the stability of the inner drum and the efficiency of pollutant collection, thus extending the service life of the washing machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU XIGUANG INFORMATION TECHNOLOGY CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-19
AI Technical Summary
The inner drum of existing washing machines is prone to deformation during high-speed spin-drying, which can damage the connection between the inner drum and the lifting ribs or collection box, reducing the stability and service life of the washing machine, and making it difficult to effectively collect pollutants such as lint and lint.
An auxiliary reinforcing structure is set on the inner cylinder body, including connecting reinforcing ribs, annular reinforcing pads and quick-release structures, to enhance the strength of the inner cylinder, and to optimize fluid entry through a flow guiding structure to improve collection efficiency.
It enhances the stability of the inner drum, extends the service life of the washing machine, and improves the collection efficiency of pollutants such as lint and fuzz.
Smart Images
Figure CN224378522U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of washing machines, specifically to a washing machine inner drum. Background Technology
[0002] In the home appliance industry, washing machines are a common type of appliance. Existing washing machines include front-loading washing machines and top-loading washing machines. During the use of washing machines, lint, fuzz, and other debris in the water flow can soil clothes. Therefore, existing technologies use collection and filtration devices installed in the collection box or lifting ribs to collect and filter lint and other debris. To increase collection efficiency, existing technologies have through holes in the inner drum to guide the water flow between the inner and outer drums to the collection and filtration devices in the collection box and lifting ribs. To increase the efficiency of collecting and filtering lint and other debris, the area of the through holes is increased. However, this causes the inner drum to rotate at high speed during the spin-drying process, which can deform the inner drum or damage the connection between the inner drum and the lifting ribs or collection box. This reduces the stability of the washing machine, shortens its service life, and makes it difficult to disassemble and assemble the lifting ribs or collection box due to the deformation of the inner drum. Utility Model Content
[0003] To address the aforementioned problems, this utility model provides a washing machine inner drum with a simple structure that can greatly enhance the strength and stability of the inner drum, extend the service life of the washing machine, and improve washing efficiency.
[0004] This utility model discloses a washing machine inner drum, including an inner drum body, on which dehydration holes are evenly distributed. Lifting ribs or a collection box are provided on the inner circumferential surface of the inner drum body, and an auxiliary reinforcing structure for strengthening the inner drum body is provided on the circumferential surface of the inner drum body. The auxiliary reinforcing structure is correspondingly provided with the lifting ribs or the collection box.
[0005] Preferably, the auxiliary reinforcing structure includes connecting reinforcing ribs;
[0006] The inner cylinder body has through holes at the locations where lifting ribs or collection boxes are installed. The connecting reinforcing ribs are located on both sides of the through holes, and the two ends of the connecting reinforcing ribs extend to the upper and lower ends of the circumference of the inner cylinder body, respectively.
[0007] Preferably, the connecting reinforcing ribs are arranged along the axial direction of the inner cylinder body.
[0008] Preferably, the auxiliary reinforcing structure includes end reinforcing ribs, which are fixedly disposed on the outer peripheral surface of the inner cylinder body at both ends of the through hole.
[0009] Preferably, one end of the end reinforcing rib is connected to the through hole, and the other end extends to the nearest end on the outer circumferential surface of the inner cylinder body.
[0010] Preferably, the auxiliary reinforcing structure includes an annular reinforcing pad, which is disposed on the inner circumferential surface of the inner cylinder body, and the lifting rib or collection box is fixedly connected to the inner cylinder body through the annular reinforcing pad.
[0011] Preferably, the lifting rib or collection box is connected to the annular reinforcing pad via a quick-release structure.
[0012] Preferably, the quick-release structure includes a locking body fixedly disposed on the side of the annular reinforcing pad facing the lifting rib or the collection box. Multiple locking bodies are provided along the annular reinforcing pad. Hook portions are provided in an annular shape on the side of the lifting rib or the collection box facing the annular reinforcing pad. The hook portions are respectively provided corresponding to the locking bodies.
[0013] The hook portion includes a connecting rod and a hook head disposed at one end of the connecting rod, the hook head extending from the circumferential surface of the connecting rod;
[0014] The locking body is provided with a locking chamber, and the side of the locking body facing the lifting rib or the collection box is provided with an inlet for the hook head to pass through, and the inlet is connected to the locking chamber;
[0015] A limiting structure for attaching a hook head is provided on one side of the latch chamber near the inlet.
[0016] It also includes an anti-detachment structure to prevent the hook head from detaching from the limiting structure.
[0017] Preferably, the limiting structure includes a limiting plate, which is fixedly connected to the latch body;
[0018] When the hook head extends into the locking chamber, and the side of the hook head facing the lifting rib or collection box is in contact with the limiting plate, the hook head is engaged with the limiting plate.
[0019] Preferably, the anti-detachment structure includes an anti-detachment spring and an anti-detachment block. A stepped blind hole is provided on the side of the connecting rod away from the hook head. The cross-sectional area of the open end of the stepped blind hole is smaller than the cross-sectional area of the other end. One end of the anti-detachment block extends into the stepped blind hole, matches the stepped blind hole, and is slidably connected.
[0020] An axial fixing block is fixedly installed on one end of the anti-detachment block that extends into the blind hole of the step. The cross-sectional area of the axial fixing block is larger than the cross-sectional area of the opening end of the blind hole of the step. The axial fixing block is connected to the bottom of the blind hole of the step by an anti-detachment spring.
[0021] The shape of the other end of the anti-detachment block matches the inner wall of the locking chamber away from the limiting structure. The locking chamber away from the limiting structure has a convex rib with an arc cross-section near the entrance. The convex rib protrudes towards the inside of the locking chamber. When the hook head is inside the locking chamber, the hook head is engaged with the limiting structure, and the anti-detachment block is engaged on the side of the convex rib facing the locking chamber away from the entrance.
[0022] Preferably, it also includes an auxiliary device for pushing the hook head toward the limiting structure;
[0023] The auxiliary device includes a push head. A stepped cavity is provided on the end of the locking chamber away from the inlet. One end of the cavity is a large-diameter end and the other end is a small-diameter end. The cross-sectional area of the large-diameter end is larger than that of the small-diameter end. The small-diameter end is connected to the locking chamber. The push head is matched and slidably disposed in the large-diameter end. A push post is fixedly connected to the push head. The end of the push post away from the push head extends out of the small-diameter end and into the locking chamber, and is correspondingly disposed with respect to the inlet of the locking chamber. The end of the push head away from the push post is connected to the end of the cavity away from the small-diameter end through an auxiliary spring.
[0024] Preferably, a flow guiding structure is also provided on the outer peripheral surface of the inner cylinder body on the side of the through hole to guide the fluid into the internal region of the inner cylinder body.
[0025] This utility model has a simple structure and is easy to use. It utilizes an auxiliary reinforcing structure set on the circumference of the inner drum body to enhance the strength of the inner drum body, thereby improving the strength of the washing machine inner drum, which greatly improves the stability of the washing machine during operation and extends its service life.
[0026] This utility model utilizes an auxiliary reinforcing structure to enhance the strength of the inner cylinder body, thereby reducing the stress at the connection between the lifting rib or collection box and the inner cylinder body. Furthermore, the inner cylinder body and the lifting rib or collection box are connected by a quick-release structure, thus enabling convenient assembly and disassembly of the lifting rib or collection box on the inner cylinder body. Attached Figure Description
[0027] Figure 1 This is an exploded view of the present invention and the collection box on a pulsator washing machine.
[0028] Figure 2 for Figure 1 Schematic diagram at point A in the middle.
[0029] Figure 3 for Figure 1 Schematic diagram at point B in the middle.
[0030] Figure 4 This is an exploded view of the utility model and the airflow guiding structure on a pulsator washing machine.
[0031] Figure 5 for Figure 4 Schematic diagram at point C.
[0032] Figure 6 for Figure 4 Another perspective illustration.
[0033] Figure 7 for Figure 6 Schematic diagram at point D.
[0034] Figure 8 This is an exploded schematic diagram of the present invention and the lifting ribs on a drum washing machine.
[0035] Figure 9 for Figure 8 Schematic diagram at point F in the middle.
[0036] Figure 10 for Figure 8 Schematic diagram at point E in the middle.
[0037] Figure 11 The middle part is a schematic diagram of the connection between the locking body and the hook.
[0038] Figure 12 This is a schematic diagram showing the hook part about to enter or disengage from the locking chamber.
[0039] Reference numerals: 1-Inner cylinder body, 2-Dehydration hole, 3-Lifting rib, 4-Collection box, 5-Connecting reinforcing rib, 6-Through hole, 7-End reinforcing rib, 8-Annular reinforcing pad, 9-Hook head, 10-Lock chamber, 11-Limiting plate, 12-Anti-detachment spring, 13-Anti-detachment block, 14-Protruding rib, 15-Push column, 16-Auxiliary spring, 17-Guiding structure. Detailed Implementation
[0040] The present invention will be described below with reference to the accompanying drawings.
[0041] See Figure 1 , Figure 3 , Figure 4 , Figure 8 , Figure 9 As shown, this utility model discloses a washing machine inner drum, including an inner drum body 1. The inner drum body 1 has evenly distributed dehydration holes 2. The inner circumferential surface of the inner drum body 1 is provided with lifting ribs 3 or collection boxes 4. The circumferential surface of the inner drum body 1 is provided with auxiliary reinforcing structures for strengthening the inner drum body 1. The auxiliary reinforcing structures are correspondingly arranged with the lifting ribs 3 or collection boxes 4, and the stability of the inner drum body 1 is improved by using the auxiliary reinforcing structures.
[0042] In one embodiment, the auxiliary reinforcing structure includes connecting reinforcing ribs 5; see also Figure 1 , Figure 3 , Figure 8 , Figure 9 As shown,
[0043] The inner cylinder body 1 has a through hole 6 at the position where the lifting rib 3 or the collection box 4 is installed. The connecting reinforcing rib 5 is located on both sides of the through hole 6, and the two ends of the connecting reinforcing rib 5 extend to the upper and lower ends of the circumference of the inner cylinder body 1, respectively.
[0044] In one embodiment, the connecting reinforcing rib 5 is arranged axially along the inner cylinder body 1.
[0045] In one embodiment, the auxiliary reinforcing structure includes end reinforcing ribs 7, which are fixedly disposed on the outer circumferential surface of the inner cylinder body 1 at both ends of the through hole 6.
[0046] In one embodiment, see Figure 3 and Figure 8 As shown, one end of the end reinforcing rib 7 is connected to the through hole 6, and the other end extends to the nearest end on the outer circumferential surface of the inner cylinder body 1.
[0047] See Figure 2 and Figure 10 As shown, the auxiliary reinforcing structure includes an annular reinforcing pad 8, which is disposed on the inner circumferential surface of the inner cylinder body 1, and the lifting rib 3 or the collection box 4 is fixedly connected to the inner cylinder body 1 through the annular reinforcing pad 8.
[0048] The lifting rib 3 or the collection box 4 is connected to the annular reinforcing pad 8 via a quick-release structure.
[0049] As needed, a filter collection device for filtering and collecting lint can be fixedly installed inside the lifting rib 3 or the collection box 4. Depending on the setting of the filter collection device, if the filter collection device is completely located inside the collection box 4 or the lifting rib 3, and the through hole 6 is equivalent to the fluid inlet, a flow guiding structure 17 can be set on the outer circumferential surface of the inner cylinder body 1 to guide the fluid to the through hole 6, so as to increase the flow rate of the fluid entering the fluid inlet. At the same time, a one-way opening sealing door can be arranged at the through hole 6 to improve the lint collection efficiency.
[0050] If one side of the collection and filtration device is fixed inside the collection box 4 or the lifting rib 3, and the corresponding other side extends out of the through hole 6 to the outside of the inner cylinder body 1, then the flow guiding structure 17 for guiding the fluid to the through hole 6 is not provided on the outer circumferential surface of the inner cylinder body 1; the corresponding two sides of the collection and filtration device are referred to as the fluid inlet, and a one-way opening sealing door is provided at the fluid inlet, which is beneficial to improving the collection efficiency of lint.
[0051] In one embodiment, see Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 8 , Figures 10-12As shown, the quick-release structure includes a locking body fixedly installed on the side of the annular reinforcing pad 8 facing the lifting rib 3 or the collection box 4. The locking body is configured in multiple ways along the annular reinforcing pad 8. The lifting rib 3 or the collection box 4 is provided with hooks in an annular shape on the side facing the annular reinforcing pad 8. The hooks are respectively provided corresponding to the locking body.
[0052] The hook portion includes a connecting rod and a hook head 9 disposed at one end of the connecting rod, the hook head 9 extending from the circumferential surface of the connecting rod;
[0053] The locking body is provided with a locking chamber 10, and the side of the locking body facing the lifting rib 3 or the collection box 4 is provided with an inlet for the hook head 9 to pass through, and the inlet is connected to the locking chamber 10.
[0054] The locking chamber 10 has a limiting structure on one side near the inlet for attaching the hook head 9.
[0055] It also includes an anti-detachment structure to prevent the hook head 9 from detaching from the limiting structure.
[0056] The quick-release structure enables rapid assembly and disassembly of the collection box 4 or the lifting rib 3 from the inner cylinder body 1, which facilitates cleaning of the internal area of the lifting rib 3 or the collection box 4.
[0057] See Figure 11 , Figure 12 As shown, the limiting structure includes a limiting plate 11, which is fixedly connected to the latch body;
[0058] When the hook head 9 extends into the locking chamber 10, and the side of the hook head 9 facing the lifting rib 3 or the collection box 4 is connected to the limiting plate 11, the hook head 9 is engaged with the limiting plate 11.
[0059] In one embodiment, the anti-detachment structure includes an anti-detachment spring 12 and an anti-detachment block 13. A stepped blind hole is provided on the side of the connecting rod away from the hook head 9. The cross-sectional area of the open end of the stepped blind hole is smaller than the cross-sectional area of the other end. One end of the anti-detachment block 13 extends into the stepped blind hole, matches the stepped blind hole, and is slidably connected.
[0060] An axial fixing block is fixedly installed on one end of the anti-detachment block 13 that extends into the blind hole of the step. The cross-sectional area of the axial fixing block is larger than the cross-sectional area of the opening end of the blind hole of the step. The axial fixing block is connected to the bottom of the blind hole of the step through the anti-detachment spring 12.
[0061] The shape of the other end of the anti-detachment block 13 matches the inner wall of the locking chamber 10 away from the limiting structure. The locking chamber 10 away from the limiting structure is provided with a convex rib 14 with an arc cross-section near the entrance. The convex rib 14 protrudes towards the inside of the locking chamber 10. When the hook head 9 is located in the locking chamber 10, the hook head 9 is engaged with the limiting structure, and the anti-detachment block 13 is engaged on the side of the convex rib 14 facing the locking chamber 10 away from the entrance.
[0062] In one embodiment, it further includes an auxiliary device for pushing the hook head 9 toward the limiting structure;
[0063] The auxiliary device includes a push head. The locking chamber 10 has a stepped cavity at the end away from the inlet. One end of the cavity is a large-diameter end and the other end is a small-diameter end. The cross-sectional area of the large-diameter end is larger than that of the small-diameter end. The small-diameter end is connected to the locking chamber 10. The push head is matched and slidably disposed in the large-diameter end. A push post 15 is fixedly connected to the push head. The end of the push post 15 away from the push head extends out of the small-diameter end and into the locking chamber 10, and is correspondingly disposed to the inlet on the upper part of the locking chamber 10. The end of the push head away from the push post 15 is connected to the end of the cavity away from the small-diameter end through an auxiliary spring 16.
[0064] In use, pressing the anti-detachment block 13 compresses the anti-detachment spring 12, shortening the distance between the hook head 9 and the anti-detachment block 13, allowing them to enter the locking chamber 10 as a whole. For easier operation, the end of the anti-detachment block 13 furthest from the hook head 9 is curved, and the inner wall of the locking chamber 10 near the anti-detachment block 13 is also curved. When the hook head enters the locking chamber 10, the curved inner wall of the locking chamber 10 squeezes the anti-detachment block 13, thus shortening the distance between the hook head 9 and the anti-detachment block 13 and allowing them to enter the locking chamber 10 as a whole. After the hook head enters the locking chamber 10, the hook part squeezes... The push column 15 is compressed and deformed by the auxiliary spring 16. When the anti-detachment block 13 passes the protrusion 14, the distance between the hook head 9 and the anti-detachment block 13 is increased under the reset action of the anti-detachment spring 12. The hook head 9 is hooked on the limiting plate 11, and the anti-detachment block 13 is engaged on the side of the protrusion 14 facing the locking chamber 10 away from the inlet. This achieves a reliable and quick connection between the lifting rib 3 or the collection box 4 and the annular reinforcing pad 8. Since the auxiliary spring 16 is in a compressed state at this time, the hook head 9 is always pushed by the auxiliary spring 16 to squeeze the limiting plate 11, which further ensures the reliability of the connection.
[0065] When disassembly is required, pull the connecting rod toward the anti-detachment block 13. The distance between the hook head 9 and the anti-detachment block 13 will shorten, and the hook head 9 will disengage from the limiting plate 11. Then, pull the connecting rod along the connecting rod axis toward the outside of the locking chamber 10. At this time, the auxiliary spring 16 will reset. Under the action of the outward pulling force and the elastic force of the auxiliary spring 16, the hook head 9 will disengage from the locking chamber 10.
[0066] See Figures 4-7 A flow guiding structure 17 is also provided on the outer circumferential surface of the inner cylinder body 1 on the side of the through hole 6 to guide the fluid into the internal area of the inner cylinder body 1. The flow guiding structure 17 increases the flow rate of the fluid entering the through hole 6, which can improve the collection efficiency of the filter collection device set in the lifting rib 3 or the collection box 4.
[0067] This utility model has a simple structure and is easy to use. It utilizes an auxiliary reinforcing structure set on the outer circumference of the inner drum body 1 to enhance the strength of the inner drum, thereby improving the strength of the washing machine inner drum and greatly improving the stability of the washing machine during operation, while extending its service life.
Claims
1. A tub for a washing machine, comprising a tub body having dewatering holes uniformly distributed thereon, and a lifting rib or a collection box provided on an inner circumferential surface of the tub body, characterized in that, The inner cylinder body is provided with an auxiliary reinforcing structure on its circumferential surface to enhance the strength of the inner cylinder body. The auxiliary reinforcing structure is provided in correspondence with the lifting rib or the collection box.
2. The inner tub of a washing machine according to claim 1, wherein The auxiliary reinforcing structure includes connecting reinforcing ribs; The inner cylinder body has through holes at the locations where lifting ribs or collection boxes are installed. The connecting reinforcing ribs are located on both sides of the through holes, and the two ends of the connecting reinforcing ribs extend to the upper and lower ends of the circumference of the inner cylinder body, respectively.
3. The inner tub of a washing machine according to claim 2, wherein The connecting reinforcing ribs are arranged along the axial direction of the inner cylinder body.
4. The washing machine inner drum as described in claim 1, characterized in that, The auxiliary reinforcing structure includes end reinforcing ribs, which are fixedly disposed on the outer peripheral surface of the inner cylinder body at both ends of the through hole.
5. The washing machine inner drum as described in claim 4, characterized in that, One end of the end reinforcing rib is connected to the through hole, and the other end extends to the nearest end on the outer circumferential surface of the inner cylinder body.
6. The washing machine inner drum as described in claim 1, characterized in that, The auxiliary reinforcing structure includes an annular reinforcing pad, which is disposed on the inner circumferential surface of the inner cylinder body, and the lifting rib or collection box is fixedly connected to the inner cylinder body through the annular reinforcing pad.
7. The washing machine inner drum as described in claim 6, characterized in that, The lifting rib or collection box is connected to the annular reinforcing pad through a quick-release structure.
8. The washing machine inner drum as described in claim 7, characterized in that, The quick-release structure includes a locking body fixedly installed on the side of the annular reinforcing pad facing the lifting rib or the collection box. Multiple locking bodies are set along the annular reinforcing pad. Hooks are arranged in a ring shape on the side of the lifting rib or the collection box facing the annular reinforcing pad. The hooks are respectively set to correspond to the locking bodies. The hook portion includes a connecting rod and a hook head disposed at one end of the connecting rod, the hook head extending from the circumferential surface of the connecting rod; The locking body is provided with a locking chamber, and the side of the locking body facing the lifting rib or the collection box is provided with an inlet for the hook head to pass through, and the inlet is connected to the locking chamber; A limiting structure for attaching a hook head is provided on one side of the latch chamber near the inlet. It also includes an anti-detachment structure to prevent the hook head from detaching from the limiting structure.
9. A washing machine inner drum as described in claim 8, characterized in that, The limiting structure includes a limiting plate, which is fixedly connected to the locking body; When the hook head extends into the locking chamber, and the side of the hook head facing the lifting rib or collection box is in contact with the limiting plate, the hook head is engaged with the limiting plate.
10. The washing machine inner drum as described in claim 8, characterized in that, The anti-detachment structure includes an anti-detachment spring and an anti-detachment block. A stepped blind hole is provided on the side of the connecting rod away from the hook head. The cross-sectional area of the open end of the stepped blind hole is smaller than the cross-sectional area of the other end. One end of the anti-detachment block extends into the stepped blind hole, matches the stepped blind hole, and is slidably connected. An axial fixing block is fixedly installed on one end of the anti-detachment block that extends into the blind hole of the step. The cross-sectional area of the axial fixing block is larger than the cross-sectional area of the opening end of the blind hole of the step. The axial fixing block is connected to the bottom of the blind hole of the step by an anti-detachment spring. The shape of the other end of the anti-detachment block matches the inner wall of the locking chamber away from the limiting structure. The locking chamber away from the limiting structure has a convex rib with an arc cross-section near the entrance. The convex rib protrudes towards the inside of the locking chamber. When the hook head is inside the locking chamber, the hook head is engaged with the limiting structure, and the anti-detachment block is engaged on the side of the convex rib facing the locking chamber away from the entrance.
11. A washing machine inner drum as described in claim 8, characterized in that, It also includes an auxiliary device for pushing the hook head toward the limiting structure; The auxiliary device includes a push head. A stepped cavity is provided on the end of the locking chamber away from the inlet. One end of the cavity is a large-diameter end and the other end is a small-diameter end. The cross-sectional area of the large-diameter end is larger than that of the small-diameter end. The small-diameter end is connected to the locking chamber. The push head is matched and slidably disposed in the large-diameter end. A push post is fixedly connected to the push head. The end of the push post away from the push head extends out of the small-diameter end and into the locking chamber, and is correspondingly disposed with respect to the inlet of the locking chamber. The end of the push head away from the push post is connected to the end of the cavity away from the small-diameter end through an auxiliary spring.
12. The washing machine inner drum as described in claim 2, characterized in that, A flow guiding structure is also provided on the outer peripheral surface of the inner cylinder body on one side of the through hole to guide the fluid into the internal region of the inner cylinder body.