Microporous permeation washing inner cylinder of washing machine
By designing external penetration holes, internal penetration holes, fixing rings and hinged structures in the inner drum of the washing machine, the problems of inconvenient disassembly and assembly of the water-repelling blades and poor drainage effect are solved, and the effect of convenient disassembly and efficient drainage is achieved.
Patent Information
- Application Number
- CN202422984911.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The water-repelling blades of the existing washing machine inner drum are inconvenient to disassemble and assemble, and the bottom structure of the drum leads to poor drainage effect.
A microporous osmotic washing inner drum is designed. The outer wall of the inner drum body is provided with an external osmotic hole, the water-repelling blade is provided with an internal osmotic hole, and the bottom of the drum is provided with a fixing ring and a through-hole portion. The water-repelling blade is stably inserted through the design of the positioning groove and the positioning hole, and the hinged structure of the threaded rod and the fixing ring is used for easy disassembly.
It improves the convenience of disassembly and assembly of the water-repelling blade and the drainage efficiency of the inner barrel, reduces vibration and noise, prevents internal moisture and bacterial growth, and realizes convenient disassembly and efficient drainage.
Smart Images

Figure CN223481492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of washing machine inner drum technology, specifically to a microporous permeation washing inner drum for a washing machine. Background Technology
[0002] A washing machine includes an outer drum and an inner drum rotatably disposed within the outer drum. The outer drum holds wash water for washing clothes, while the clothes to be washed are placed in the inner drum. During the washing operation, the inner drum rotates in a predetermined manner to rotate the wash water within it, causing the clothes to rub against the wash water or the inner drum wall, thereby achieving a cleaning effect. A search of existing technology (publication number: CN207933721U) reveals "an inner drum assembly for a washing machine and a washing machine including the inner drum assembly. This invention aims to solve the problem that clothing can easily get caught in the installation gap created after assembling the inner drum and deflector blades in existing washing machines. To this end, the washing machine of this invention includes an inner drum and deflector blades disposed on the inner drum. A first recessed groove, extending from the inside out, is formed on the inner drum wall to accommodate the deflector blades. When the deflector blades and the inner drum are assembled, the installation gap between the deflector blades and the inner drum wall is accommodated in the first groove. Through the provision of the first groove, even if an installation gap still exists between the deflector blades and the inner drum wall after fixing, this gap will not be exposed to the washing environment inside the inner drum. In other words, the gap is hidden in a position where clothing cannot come into contact with it, fundamentally solving the problem of clothing easily getting caught in the gap."
[0003] While existing washing machine drums have solved the problem of water deflector gaps, they still have some shortcomings: the water deflectors in existing washing machine drums are generally detachable, allowing for the removal of internal dirt after long-term use. However, the removal of existing water deflectors is relatively troublesome, and only one independently installed water deflector can be removed at a time. Secondly, the bottom of the drum of a typical drum washing machine is a solid structure, which leads to poor drainage performance. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, a microporous permeable washing drum for washing machines is provided to solve the problems of inconvenient disassembly and assembly of the water-repellent blades in existing washing machine drums, and the drainage effect deviation caused by the drum bottom structure.
[0005] To achieve the above objectives, a microporous permeation washing inner drum for a washing machine is provided, comprising: an inner drum body, a water-dispelling blade provided on the inner side wall of the inner drum body, and a drum bottom provided at the rear end of the inner drum body; a positioning groove provided on the inner wall of the inner drum body, and a communicating positioning hole provided at the front end of the positioning groove; the water-dispelling blade is inserted into the positioning groove; a fixing ring is hinged to the rear end of the water-dispelling blade; and a fixing component is provided at the center of the fixing ring, and the fixing component is fixed to the center of the drum bottom.
[0006] Furthermore, the outer wall of the inner cylinder body is provided with external permeation holes, and the outer wall of the water-repelling blade is provided with internal permeation holes.
[0007] Furthermore, the front end of the water-repelling blade is provided with an insertion block, and the insertion block is matched and inserted into the positioning hole.
[0008] Furthermore, the inner side of the fixing ring is provided with a protrusion and a through hole, and the protrusion and the through hole are arranged alternately in the circumferential direction.
[0009] Furthermore, the outer ring wall of the fixed ring is provided with a hinge groove, and a pin is provided inside the hinge groove. A hinge block is rotatably sleeved on the outside of the pin, and the hinge block is connected to the inner end of the water-repelling blade.
[0010] Furthermore, the fixing component includes a protrusion fixed to the center of the fixing ring, and a rotating block is connected to the outer side of the protrusion, and a threaded rod is connected to the inner end of the rotating block.
[0011] Furthermore, the threaded rod rotates through the protrusion and is screwed into a threaded hole at the center of the bottom of the cylinder.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. During use, the external permeation holes on the outer wall of the inner drum body play the main role in drainage. Secondly, the internal permeation holes on the water deflector play an auxiliary role in drainage and heat dissipation. At the same time, it helps to reduce vibration and noise, and also helps to allow air to pass through, preventing the inside of the washing machine from becoming damp and reducing bacterial growth. In addition, the fixing ring at the bottom of the solid drum and the through hole on the inside of the fixing ring increase the drainage effect of the inner drum at the bottom, thereby improving the overall drainage efficiency of the washing machine.
[0014] 2. The positioning holes and grooves on the inner wall of the inner cylinder allow the water-dispensing blade to be stably inserted into the inner wall. During disassembly, simply rotate the rotating block manually to remove the threaded rod from the center of the bottom of the cylinder, and then pull out one end of the fixing ring. At this point, due to the hinged connection between the water-dispensing blade and the fixing ring, the water-dispensing blade can be pushed backward to disengage the insert at its front end from the positioning hole. Then, the front end of the water-dispensing blade is brought together with the fixing ring to form a conical structure, and then the whole thing is removed from the inner cylinder body, achieving the effect of easy disassembly and cleaning. The same principle applies during installation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the external structure of the inner cylinder body according to an embodiment of the present utility model.
[0016] Figure 2 This is a schematic diagram of the positioning groove and positioning hole structure of an embodiment of this utility model.
[0017] Figure 3 This is a schematic diagram of the unfolded structure of the water-repellent blade and the fixing ring in an embodiment of this utility model.
[0018] Figure 4 This is an embodiment of the present utility model. Figure 3 Schematic diagram of the structure at point A in the middle.
[0019] Figure 5 This is a schematic diagram of the axial cross-sectional structure of the inner cylinder according to an embodiment of the present invention.
[0020] In the diagram: 1. Inner cylinder body; 11. External permeation hole; 12. Water deflector; 121. Internal permeation hole; 122. Insert block; 13. Positioning groove; 14. Positioning hole; 15. Fixing ring; 151. Protrusion; 152. Through hole; 153. Hinge groove; 154. Hinge block; 155. Pin; 16. Fixing assembly; 161. Rotating block; 162. Threaded rod; 163. Protrusion; 17. Cylinder bottom. Detailed Implementation
[0021] Reference Figures 1 to 5 As shown, this utility model provides a microporous permeation washing inner drum for a washing machine, including: an inner drum body 1, a water-repelling blade 12 provided on the inner side wall of the inner drum body 1, and a drum bottom 17 provided at the rear end of the inner drum body 1. A positioning groove 13 is provided on the inner wall of the inner drum body 1, and a positioning hole 14 is provided at the front end of the positioning groove 13. The water-repelling blade 12 is inserted into the positioning groove 13. A fixing ring 15 is hinged to the rear end of the water-repelling blade 12, and a fixing component 16 is provided at the center of the fixing ring 15. The fixing component 16 is fixed to the center of the drum bottom 17.
[0022] Specifically, the water-repelling blades 12 are made of plastic and are arranged in six sets in a ring on the inner wall of the inner cylinder body 1. The side of the water-repelling blades 12 connected to the inner wall of the inner cylinder body 1 has an inner cavity. The water-repelling blades 12 are designed as isosceles trapezoids and the edges of the isosceles trapezoids have rounded chamfers to prevent damage to the clothes.
[0023] Specifically, the bottom of the cylinder 17 is designed as a flat ring structure, and a drive shaft is connected to its rear end. An annular groove is provided on the front side of the bottom of the cylinder 17 to facilitate positioning and engagement with the fixing ring 15.
[0024] like Figure 1 , Figure 3 , Figure 4 and Figure 5 In the middle, the outer wall of the inner cylinder body 1 is provided with an external permeation hole 11, and the outer wall of the water deflector 12 is provided with an internal permeation hole 121. The front end of the water deflector 12 is provided with an insertion block 122, and the insertion block 122 is matched and inserted into the positioning hole 14. The inner side of the fixing ring 15 is provided with a protrusion 151 and a through hole 152, and the protrusion 151 and the through hole 152 are alternately arranged in the circumferential direction. The outer ring wall of the fixing ring 15 is provided with a hinge groove 153, and the hinge groove 153 is provided with a pin 155 inside. The outer side of the pin 155 is rotatably sleeved with a hinge block 154, and the hinge block 154 is connected to the inner end of the water deflector 12.
[0025] Specifically, after the water-repellent blade 12 is stably inserted into the positioning groove 13, the sealing strips on the outer wall of the water-repellent blade 12 and the inner wall of the positioning groove 13 are squeezed together to achieve a sealing effect at the connection gap and prevent clothing from being caught in the gap.
[0026] Specifically, a sealing ring is provided on the rear ring wall of the fixing ring 15, and the sealing ring is engaged in the ring groove opened on the front side of the bottom of the cylinder 17. During installation, the sealing ring in the ring groove is pressed backward by the fixing ring 15 to realize the insertion space between the insert block 122 at the front end of the water deflector 12 and the positioning hole 14.
[0027] like Figure 3 and Figure 5 In the middle, the fixing component 16 includes a protrusion 163 fixed to the center of the fixing ring 15, and a rotating block 161 is connected to the outer side of the protrusion 163, and a threaded rod 162 is connected to the inner end of the rotating block 161. The threaded rod 162 rotates through the protrusion 163, and the threaded rod 162 is screwed into the threaded hole opened in the center of the bottom of the cylinder 17.
[0028] Specifically, during disassembly, the rotating block 161 gradually moves outward, bringing out the threaded rod 162. After the rotating block 161 is connected to the protruding block 163, the front end tends to be flush, and the edges of both are treated with arc chamfering.
[0029] During use, the external permeation holes on the outer wall of the inner drum provide the primary drainage effect. The internal permeation holes on the deflector blades provide auxiliary drainage and heat dissipation, while also reducing vibration and noise, promoting ventilation, preventing internal dampness, and minimizing bacterial growth. The fixed ring at the bottom of the solid drum, along with the through-hole on its inner side, enhances drainage at the bottom, improving overall drainage efficiency. Positioning holes and grooves on the inner wall of the drum ensure stable insertion of the deflector blades. Disassembly is simple: manually rotate the rotating block to remove the threaded rod from the center of the drum bottom, then pull the fixed ring outwards. The hinged connection between the deflector blades and the fixed ring allows the blades to be pushed backwards, disengaging the front end from the positioning hole. The front end of the deflector blades then converges with the fixed ring to form a conical structure, allowing the entire assembly to be removed from the inner drum body for easy disassembly and cleaning. Installation follows the same principle.
[0030] The microporous permeation washing drum of this invention can effectively solve the problems of inconvenient disassembly and assembly of the water deflector blades in existing washing machine drums, and the drainage effect deviation caused by the drum bottom structure. Based on the existing microporous permeation washing drum technology, it improves the ease of disassembly and assembly of the water deflector blades on the inner side of the drum, and improves the overall drainage effect of the drum.
Claims
1. A microporous permeation washing drum for a washing machine, comprising: The inner cylinder body (1) has a water-dispelling blade (12) on its inner side wall and a cylinder bottom (17) at its rear end. The inner cylinder body (1) has a positioning groove (13) on its inner wall and a connecting positioning hole (14) at the front end of the positioning groove (13). The water-dispelling blade (12) is inserted into the positioning groove (13). A fixing ring (15) is hinged to the rear end of the water-dispelling blade (12). A fixing component (16) is provided at the center of the fixing ring (15) and the fixing component (16) is fixed at the center of the cylinder bottom (17).
2. The microporous permeation washing drum of a washing machine according to claim 1, characterized in that, The outer wall of the inner cylinder body (1) is provided with an external permeation hole (11), and the outer wall of the water-repelling blade (12) is provided with an internal permeation hole (121).
3. The microporous permeation washing inner drum of a washing machine according to claim 1, characterized in that, The front end of the water-repelling blade (12) is provided with a plug (122), and the plug (122) is matched and plugged into the positioning hole (14).
4. The microporous permeation washing drum of a washing machine according to claim 1, characterized in that, The inner side of the fixing ring (15) is provided with a protrusion (151) and a through hole (152), and the protrusion (151) and the through hole (152) are arranged alternately in the circumferential direction.
5. The microporous permeation washing inner drum of a washing machine according to claim 1, characterized in that, The outer ring wall of the fixed ring (15) is provided with a hinge groove (153), and a pin (155) is provided inside the hinge groove (153). A hinge block (154) is rotatably sleeved on the outside of the pin (155), and the hinge block (154) is connected to the inner end of the water-repellent blade (12).
6. The microporous permeation washing drum of a washing machine according to claim 1, characterized in that, The fixing component (16) includes a protrusion (163) fixed at the center of the fixing ring (15), and a rotating block (161) is connected to the outer side of the protrusion (163), and a threaded rod (162) is connected to the inner end of the rotating block (161).
7. The microporous permeation washing inner drum of a washing machine according to claim 6, characterized in that, The threaded rod (162) rotates through the protrusion (163) and is screwed into the threaded hole opened in the center of the bottom of the cylinder (17).
Citation Information
Patent Citations
Washing machine's inner tube subassembly and including washing machine of this inner tube subassembly
CN207933721U