Pulsator washing machine with steam generation structure

By introducing a steam generator and control valve assembly into the pulsator washing machine, the problems of low steam utilization and poor sterilization and mite removal effects of existing pulsator washing machines have been solved, achieving highly efficient steam sterilization and mite removal effects and improving the washing effect of clothes.

CN224186471UActive Publication Date: 2026-05-01CIXI HUICAN INTELLIGENT ELECTRICAL APPLIANCES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CIXI HUICAN INTELLIGENT ELECTRICAL APPLIANCES CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing top-loading washing machines have limited ability to remove deep-seated dirt such as oil stains and sweat stains, cannot effectively kill bacteria and mites, have low steam utilization rate, and uneven steam distribution, resulting in uneven heating of clothes.

Method used

A pulsator washing machine with a steam generation structure was designed, including a steam generator, a steam delivery pipe, a control valve assembly, and a sealing structure. It can stably provide high-temperature steam to the washing tub, prevent water from entering the steam channel through the control valve assembly, and release steam for sterilization and mite removal after washing.

Benefits of technology

It improves steam utilization, achieves efficient sterilization and mite removal of clothes, ensures even steam distribution, and enhances washing effect and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pulsator washing machine with a steam generation structure, which comprises a machine body, a cover body is arranged at the top end of the machine body, a pulsator component is arranged in the machine body, a steam control component is arranged at the rear end of the cover body, and the steam control component comprises a mounting bracket and a steam generator arranged on the mounting bracket. The impeller assembly comprises an outer barrel and a washing barrel arranged in the outer barrel, a steam outlet capable of discharging steam upwards is formed in the bottom of the washing barrel, a steam cavity is formed between the outer barrel and the washing barrel, the steam generator is connected with a steam conveying pipe, the steam conveying pipe is connected to the bottom of the outer barrel, a through hole is formed in the bottom of the outer barrel, and the through hole is communicated with the steam cavity. The steam conveying pipe is communicated with the steam chamber through the through hole; the steam sterilization and acarus killing device further comprises a control valve assembly used for controlling opening and closing of the through hole, high-temperature steam can be fully provided for the interior of the washing barrel, the steam utilization rate is increased, and the steam sterilization and acarus killing efficiency is improved.
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Description

A pulsator washing machine with a steam generating structure Technical Field

[0001] This utility model relates to the field of pulsator washing machine technology, and in particular to a pulsator washing machine with a steam generating structure. Background Technology

[0002] A top-loading washing machine is a common type of fully automatic washing machine with a top-loading door. Its washing tub is placed vertically, and a rotating pulsator is located at the bottom. During washing, the pulsator rotates in both directions, causing the water and clothes to tumble and tumble. Stains are removed through friction between the clothes. Compared to front-loading washing machines, top-loading washing machines have a simpler structure, are easier to operate, are more affordable, and have shorter washing times, making them suitable for washing everyday clothes, especially for families with a fast-paced lifestyle and frequent laundry needs.

[0003] Existing top-loading washing machines mainly rely on water rinsing and the action of laundry detergent, which has limited ability to remove deep-seated dirt such as oil stains and sweat stains, and cannot effectively kill bacteria and mites. Some existing models have a simple steam function, but the steam is unevenly distributed in the washing drum and tends to concentrate in one place, resulting in uneven heating of clothes. The steam utilization rate is low and the efficiency is low. Summary of the Invention

[0004] The purpose of this invention is to provide a pulsator washing machine with a steam generating structure, which can fully supply high-temperature steam into the washing tub, improve steam utilization, and enhance the efficiency of steam sterilization and mite removal.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a pulsator washing machine with a steam generating structure includes a body, a cover at the top of the body, a pulsator assembly inside the body, and a steam control assembly at the rear end of the cover. The steam control assembly includes a mounting bracket and a steam generator mounted on the mounting bracket. The pulsator assembly includes an outer tub and a washing tub inside the outer tub. The bottom of the washing tub has a steam outlet for upward steam discharge. A steam chamber is formed between the outer tub and the washing tub. A steam delivery pipe is connected to the steam generator and connected to the bottom of the outer tub. A through hole is provided at the bottom of the outer tub, and the steam delivery pipe communicates with the steam chamber through the through hole. The machine also includes a control valve assembly for controlling the opening and closing of the through hole. By adopting the above technical solution, steam can be used to heat and sterilize the clothes inside the washing tub, improving the washing effect of the clothes.

[0006] A further feature of this invention is that the control valve assembly includes a valve body with a steam passage and a valve core movably disposed within the steam passage. The upper end of the valve core is formed with a sealing portion that extends outside the valve body to block the steam passage. By adopting the above technical solution, water flow can be prevented from entering the steam supply pipe during the washing process, and the steam passage can be ensured to be open during steam supply.

[0007] A further feature of this invention is that: an upper retaining ring extends from the steam outlet side of the valve body toward the steam channel; a guide sleeve extends from the upper retaining ring toward the steam channel; the valve core is disposed within the guide sleeve; and a lower retaining ring is provided at the lower end of the valve core. An elastic element is fitted on the valve core and abuts against the upper and lower retaining rings respectively, so that the lower retaining ring tends to move away from the upper retaining ring. By adopting the above technical solution, the valve core can be pressed tightly against the valve body during the washing process, thereby improving the sealing performance of the control valve assembly.

[0008] A further feature of this invention is that the upper baffle ring has a clearance hole at its center that can accommodate the valve core protruding, and the upper baffle ring has a steam outlet groove that connects the steam passage and the steam chamber, so that the sealing part can cover the steam outlet groove to seal the steam passage. By adopting the above technical solution, when the water in the impeller assembly is drained, steam can enter the impeller assembly through the steam outlet groove.

[0009] A further feature of this invention is that the control valve assembly extends through the through hole, thereby preventing water leakage through the through hole by adopting the above-mentioned technical solution.

[0010] A further feature of this invention is that a tub ring is provided above the outer tub, a drive unit is provided below the outer tub, the washing tub is connected to the drive unit, a balance ring is provided above the washing tub, and the tub ring is installed above the balance ring. By adopting the above technical solution, a sealing ring is provided between the outer tub and the tub ring, making the overall operation of the pulsator washing machine more stable, effectively preventing steam leakage from between the outer tub and the tub ring, improving sealing performance, and avoiding steam loss.

[0011] A further feature of this invention is that the steam generator includes a housing, a water box is provided inside the housing, an evaporation pipe is provided on one side of the water box, the evaporation pipe is connected to the steam delivery pipe, an evaporation chamber is provided below the evaporation pipe, a heating element for heating the evaporation chamber is provided at the bottom of the housing, a water outlet is provided at the bottom of the water box, and the water box is connected to the evaporation chamber through the water outlet. By adopting the above technical solution, this invention has a clear and compact structural layout and can stably output steam to the outer barrel.

[0012] A further feature of this invention is that: a water storage container is provided inside the machine body, a water inlet pipe is connected to the water storage container, the water box is connected to the water storage container through the water inlet pipe, and a water pump for controlling water pumping is provided on the water inlet pipe. By adopting the above technical solution, water can be supplied to the steam generator through the water storage container, avoiding frequent water addition and improving the user experience.

[0013] A further feature of this invention is that the mounting bracket is provided with a partition, which divides the mounting bracket into a control chamber and a steam generation chamber. The steam generator is located in the steam generation chamber. By adopting the above technical solution, the electrical control safety and equipment stability are improved, and subsequent maintenance and repair are facilitated.

[0014] A further feature of this invention is that the mounting bracket is provided with a cover plate, the cover plate is provided with a buckle, and the mounting bracket is provided with a corresponding slot. The buckle engages with the slot. By adopting the above technical solution, the cover plate can be quickly installed and removed, thus improving equipment maintenance.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. This utility model can stably provide high-temperature steam to the inside of the washing tub, effectively softening stains and killing bacteria and mites, thereby improving the washing efficiency and healthy washing effect.

[0017] 2. This utility model enables steam to be released from the bottom upwards, effectively covering the inside of the washing tub and improving steam utilization.

[0018] 3. This utility model first heats the tub wall to maintain a high temperature inside the washing tub, which can reduce the condensation of steam inside the washing tub and improve the efficiency of steam sterilization and mite removal. Attached Figure Description

[0019] Figure 1 is a structural schematic diagram of this utility model.

[0020] Figure 2 is a schematic diagram of the structure of the steam control component of this utility model with the cover plate removed.

[0021] Figure 3 is a side view of the disassembly body of this utility model.

[0022] Figure 4 is a cross-sectional view of the impeller assembly of this utility model.

[0023] Figure 5 is an enlarged view of A in Figure 4.

[0024] Figure 6 is a structural schematic diagram of the valve body of this utility model.

[0025] Figure 7 is a top view of the impeller assembly of this utility model.

[0026] Figure 8 is a cross-sectional view of the steam generator of this utility model.

[0027] Figure 9 is a structural schematic diagram of the cover plate of this utility model.

[0028] In the diagram: 1. Main body; 2. Cover; 3. Impeller assembly; 31. Outer tub; 311. Through hole; 32. Washing tub; 321. Steam outlet; 33. Steam chamber; 34. Tub ring; 35. Drive unit; 36. Balance ring; 37. Sealing ring; 4. Steam control assembly; 41. Mounting bracket; 411. Slot; 42. Cover plate; 421. Buckle; 43. Steam generator; 431. Housing; 432. Water box; 433. Evaporation pipe; 434. Evaporation chamber; 435. Heating element; 436. Water outlet; 44. Steam pipe; 45. Baffle plate; 46. Control chamber; 47. Steam generating chamber; 48. Control element; 5. Water storage container; 51. Water supply pipe; 52. Water supply pump; 6. Control valve assembly; 61. Valve body; 611. Upper retaining ring; 612. Steam outlet groove; 62. Steam passage; 63. Valve core; 631. Sealing part; 632. Lower retaining ring; 633. Clearance hole; 64. Elastic element; 65. Guide sleeve. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] As shown in Figures 1 to 7, this utility model discloses a pulsator washing machine with a steam generating structure, comprising a body 1, a cover 2 at the top of the body 1, and a pulsator assembly 3 inside the body 1 for accommodating clothes and water. The pulsator assembly 3 includes an outer tub 31 and a washing tub 32 disposed within the outer tub 31. A steam chamber 33 for accumulating and transmitting steam is formed between the outer tub 31 and the washing tub 32. A steam outlet 321 is provided at the bottom of the washing tub 32, communicating with the steam chamber 33. Steam in the steam chamber 33 can be output upwards from the steam outlet 321 and enter the washing tub 32. A steam control assembly 4 is provided at the rear end of the cover 2, comprising a mounting bracket 41 and a cover plate 42 mounted on the mounting bracket 41. A steam generator 43 is disposed within the mounting bracket 41, which generates high-temperature steam for washing and heating. A steam delivery pipe 44 is connected to the steam generator 43, which is connected to a through hole on the outer tub 31 and communicates with the steam chamber 33. It also includes a control valve assembly 6, which is installed through the through hole 311. The control valve assembly 6 is used to control the opening and closing of the through hole 311. With this structure, steam can be used to heat and sterilize the clothes in the washing tub 32, thereby improving the washing effect of the clothes.

[0031] The control valve assembly 6 includes a valve body 61 with a steam passage 62, and a valve core 63 movably disposed within the steam passage 62. A sealing portion 631 is formed at the upper end of the valve core 63, extending beyond the valve body 61 to block the steam passage 62. With this structure, during normal washing, the water in the washing tub 32 presses the sealing portion 631 downwards, causing it to adhere tightly to the upper surface of the valve body 61, covering the steam outlet 612. Steam cannot be output from the steam passage 62, and washing water is also prevented from seeping into the steam pipe 44. When… After the washing program ends and the water in the washing tub 32 is drained, the steam generator 43 starts working and generates steam. The steam moves towards the steam chamber 33 through the steam pipe 44. The steam enters the steam chamber 33 of the control valve assembly 6 and applies an upward thrust to the valve core 63, causing the sealing part 631 to disengage from the steam outlet groove 612, so that the steam can enter the steam chamber 33 through the steam outlet groove 612. Subsequently, the steam can enter the washing tub 32 through the steam outlet hole at the bottom of the washing tub 32, realizing steam heating, sterilization or deodorization of the clothes in the washing tub 32.

[0032] An upper retaining ring 611 extends from the steam outlet side of the valve body 61 toward the steam passage 62. A guide sleeve 65 extends from the upper retaining ring 611 toward the steam passage 62. The valve core 63 is located inside the guide sleeve 65, and a lower retaining ring 632 is provided at the lower end of the valve core 63. An elastic element 64 is fitted on the valve core 63, which abuts against the upper retaining ring 611 and the lower retaining ring 632 respectively. A clamping force is applied to the lower retaining ring 632 by the elastic element 64, causing the lower retaining ring 632 to tend to move away from the upper retaining ring 611. This ensures that the valve core 63 can be pressed tightly against the valve body 61 during the washing process, improving the sealing performance of the control valve assembly 6. The upper retaining ring 611 has a relief hole 633 at its center that can accommodate the protrusion of the valve core 63. The upper retaining ring 611 is provided with a steam outlet groove 612 that connects the steam passage 62 and the steam chamber 33, so that the sealing part 631 can cover the steam outlet groove 612 to seal the steam passage 62. When the water in the impeller assembly 3 is drained, steam can enter the impeller assembly 3 through the steam outlet groove 612.

[0033] The mounting bracket 41 has a partition 45 inside, which divides the internal space of the mounting bracket 41 into two independent areas: a steam generation chamber 47 for accommodating the steam generator 43 and a control chamber 46 for laying out the control circuit. The control chamber 46 is equipped with a control element 48, which is electrically connected to the steam generator 43 and is used to control the heating start / stop status and heating power of the steam generator 43, thereby realizing the control of steam output.

[0034] The steam generator 43 is located in the steam generating chamber 47 and is connected to the water storage container 5 located in the body 1. The water storage container 5 is used to store clean water and is connected to the steam generator 43 through the water supply pipe 51. The water supply pipe 51 is equipped with a water supply pump 52, which is used to pump the water in the water storage container 5 to the interior of the steam generator 43 to ensure that the steam generator 43 has a continuous and stable water supply.

[0035] A tub ring 34 for sealing the top opening is provided above the outer tub 31. The washing tub 32 is installed inside the outer tub 31 and connected to the machine body via a drive unit 35 located below. The drive unit 35 is used to drive the rotation of the washing tub 32 and the clothes inside the tub to realize washing and spin-drying operations. A balance ring 36 for damping vibration is provided above the washing tub 32. The tub ring 34 is fixedly installed above the balance ring 36. A sealing ring 37 is provided between the outer tub 31 and the tub ring 34 to seal the gap around the top opening of the washing tub and prevent steam leakage.

[0036] As shown in Figure 8, the steam generator 43 includes a housing 431, a water box 432 for temporary water storage inside the housing 431, an evaporation pipe 433 connected to one side of the water box 432, and a steam delivery pipe 44 connected to the other end of the evaporation pipe 433 for delivering the generated steam to the washing chamber.

[0037] A water outlet 436 is provided at the bottom of the water box 432, through which water flows into the evaporation chamber 434 located below the evaporation tube 433. A heating element 435 is provided at the bottom of the shell 431 to rapidly heat the water in the evaporation chamber 434, causing it to vaporize into high-temperature steam. The generated steam enters the steam delivery pipe 44 along the evaporation tube 433, and is further introduced into the steam chamber 33 formed between the outer tub 31 and the washing tub 32 through the through hole 311 at the bottom of the outer tub 31, thereby realizing the steam treatment of the clothes in the washing tub.

[0038] As shown in Figure 9, to facilitate component maintenance and replacement, the top of the mounting bracket 41 is covered with a cover plate 42. The cover plate 42 is provided with a buckle 421 for quick installation. The mounting bracket 41 is provided with a corresponding slot 411. Through the interlocking connection between the buckle 421 and the slot 411, the cover plate 42 and the mounting bracket 41 can be quickly disassembled and assembled.

[0039] The basic working principle of this utility model is as follows: When clothes are being washed in the washing tub 32, the valve core 63 is pressed down by the elastic element 64, and the sealing part 631 is firmly pressed against the valve body 61, so that water does not enter the steam channel 62. After the clothes are washed, the water in the impeller assembly 3 is drained, and the water pump 52 draws the water in the water storage container 5 to the water box 432, and enters the evaporation chamber 434 through the water outlet 436. The heating element 435 heats the water in the evaporation chamber 434 to generate steam. The steam enters the steam delivery pipe 44 through the evaporation pipe 433. The steam in the steam delivery pipe 44 pushes open the valve core 63, allowing the steam to enter the steam channel 62. The steam delivery pipe 44 outputs the steam to the steam chamber 33 between the outer tub 31 and the washing tub 32, and sprays it upward through the steam outlet 321 at the bottom of the washing tub 32 to sterilize and disinfect the clothes, while heating the washing tub 32 to remove dirt from the tub wall.

[0040] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A pulsator washing machine with a steam generating structure, comprising a body (1), a cover (2) at the top of the body (1), and a pulsator assembly (3) inside the body (1), characterized in that: The rear end of the cover (2) is provided with a steam control assembly (4), which includes a mounting bracket (41) and a steam generator (43) mounted on the mounting bracket (41). The impeller assembly (3) includes an outer tub (31) and a washing tub (32) located inside the outer tub (31). The bottom of the washing tub (32) is provided with a steam outlet (321) that allows steam to be released upwards. A steam chamber (33) is formed between the outer tub (31) and the washing tub (32). A steam pipe (44) is connected to the steam generator (43). The steam pipe (44) is connected to the bottom of the outer tub (31). The bottom of the outer tub (31) is provided with a through hole (311). The steam pipe (44) communicates with the steam chamber (33) through the through hole (311). The assembly also includes a control valve assembly (6), which is used to control the opening and closing of the through hole (311).

2. A pulsator washing machine with a steam generating structure according to claim 1, characterized in that: The control valve assembly (6) includes a valve body (61) having a steam passage (62) and a valve core (63) movably disposed within the steam passage (62). The upper end of the valve core (63) is formed with a sealing portion (631), and the sealing portion (631) extends to the outside of the valve body (61) to block the steam passage (62).

3. A pulsator washing machine with a steam generating structure according to claim 2, characterized in that: The valve body (61) has an upper retaining ring (611) extending into the steam passage (62) on the steam outlet side. The upper retaining ring (611) has a guide sleeve (65) extending into the steam passage (62) on the side. The valve core (63) is located inside the guide sleeve (65), and the lower end of the valve core (63) has a lower retaining ring (632). An elastic element (64) is sleeved on the valve core (63) and abuts against the upper retaining ring (611) and the lower retaining ring (632) respectively, so that the lower retaining ring (632) tends to move away from the upper retaining ring (611).

4. A pulsator washing machine with a steam generating structure according to claim 3, characterized in that: The upper baffle ring (611) has a clearance hole (633) at its center that can accommodate the valve core (63) extending out. The upper baffle ring (611) has a steam outlet groove (612) that connects the steam passage (62) and the steam chamber (33), so that the sealing part (631) can cover the steam outlet groove (612) to seal the steam passage (62).

5. A pulsator washing machine with a steam generating structure according to claim 1, characterized in that: The control valve assembly (6) is disposed through the through hole (311).

6. A pulsator washing machine with a steam generating structure according to claim 1, characterized in that: A tub ring (34) is provided above the outer tub (31), a drive unit (35) is provided below the outer tub (31), the washing tub (32) is connected to the drive unit (35), a balance ring (36) is provided above the washing tub (32), the tub ring (34) is installed above the balance ring (36), and a sealing ring (37) is provided between the outer tub (31) and the tub ring (34).

7. A pulsator washing machine with a steam generating structure according to claim 1, characterized in that: The steam generator (43) includes a housing (431), a water box (432) is provided inside the housing (431), an evaporation pipe (433) is provided on one side of the water box (432), the evaporation pipe (433) is connected to the steam pipe (44), an evaporation chamber (434) is provided below the evaporation pipe (433), a heating element (435) for heating the evaporation chamber (434) is provided at the bottom of the housing (431), a water outlet (436) is provided at the bottom of the water box (432), and the water box (432) is connected to the evaporation chamber (434) through the water outlet (436).

8. A pulsator washing machine with a steam generating structure according to claim 7, characterized in that: The body (1) is provided with a water storage container (5), and a water supply pipe (51) is connected to the water storage container (5). The water box (432) is connected to the water storage container (5) through the water supply pipe (51). A water supply pump (52) for controlling water pumping is provided on the water supply pipe (51).

9. A pulsator washing machine with a steam generating structure according to claim 1, characterized in that: The mounting bracket (41) is provided with a partition (45), which divides the mounting bracket (41) into a control chamber (46) and a steam generating chamber (47), and the steam generator (43) is disposed in the steam generating chamber (47).

10. A pulsator washing machine with a steam generating structure according to claim 1, characterized in that: The mounting bracket (41) is provided with a cover plate (42), the cover plate (42) is provided with a buckle (421), and the mounting bracket (41) is provided with a corresponding slot (411). The buckle (421) engages with the slot (411).