Brush head switch structure and fabric cleaning machine

By designing the opening and closing control module and the regulation module, the steam transmission channel of the fabric cleaning machine is precisely controlled and automatically reset, solving the problem of inconvenient operation of the steam switch in the existing technology and improving the ease of use and safety.

CN224133358UActive Publication Date: 2026-04-17NINGBO DWAFER ELECTRICAL APPLIANCES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DWAFER ELECTRICAL APPLIANCES CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The steam switch of existing fabric cleaning machines is inconvenient to operate, makes it difficult to keep the steam channel open stably, and cannot flexibly adjust the steam output mode, resulting in low user comfort and efficiency.

Method used

The design employs a combination of an opening/closing control module and a regulation module. Through the elastic sealing and directional limiting of the opening/closing rod, precise control of the steam transmission channel is achieved. The opening/closing rod automatically resets and closes without external force. Pressing the regulation switch quickly opens the channel, and the locking mechanism enables continuous output.

Benefits of technology

It improves the controllability and stability of steam output, reduces operator fatigue, enhances equipment safety and energy efficiency, and ensures the continuity and sealing of steam delivery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cleaning machines, in particular to a brush head switch structure and a fabric cleaning machine, which comprises a holding handle, a brush head switch and a brush head switch, the brush head is detachably arranged at the front end of the holding handle, and an air inlet connector for leading in steam is arranged at the connecting end of the brush head; the opening and closing control module is installed in the holding handle in an embedded mode and is arranged close to the connecting end of the holding handle, and a conveying channel for steam conduction and an opening and closing rod capable of continuously and elastically blocking the conveying channel are arranged in the opening and closing control module; the regulation and control module is fixedly arranged outside the opening and closing control module, and the regulation and control module is provided with a regulation and control switch capable of regulating the opening and closing rod from the first stroke position to the second stroke position; the steam output state can be automatically adjusted according to using requirements, operation is easy, and the effect is good.
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Description

Technical Field

[0001] This utility model relates to the field of cleaning machine technology, specifically to a brush head switch structure and a fabric cleaning machine. Background Technology

[0002] Fabric cleaning machines typically use high-temperature steam to clean fabric surfaces, removing stains, sterilizing, and improving cleaning effectiveness. To achieve effective steam control, cleaning machines generally have a manual switch mechanism, allowing the steam to be turned on and off by pressing or toggling the switch, ensuring steam is output as needed during the cleaning process. However, existing brush head switch mechanisms still have the following problems in practical use:

[0003] 1. Inconvenient operation: Most existing cleaning machines use a push-button or toggle-type steam switch design. Users need to continuously press or keep the switch in the on state to maintain steam output. Prolonged operation can easily lead to hand fatigue, affecting user comfort and cleaning efficiency.

[0004] 2. Unable to keep the steam passage open stably: Some manual switches will automatically return to their original position after being released, causing the steam passage to close. Users need to press repeatedly to keep the steam output open, which affects the continuity of cleaning work.

[0005] 3. Insufficient flexibility: Existing switch structures usually cannot meet the needs of short-term inching control and long-term continuous output, making it difficult to flexibly adjust the steam output mode according to different cleaning tasks. Summary of the Invention

[0006] To address the aforementioned issues, a brush head switch structure is provided. This structure not only allows for flexible control of steam on / off during operation but also enables continuous steam output according to usage requirements, thereby solving the technical problem that existing switch structures cannot flexibly control the steam output state.

[0007] To address the problems of existing technologies, this utility model provides a brush head switch structure, comprising: a handle, wherein a first pipe for steam transmission is provided inside the handle; a brush head, wherein the brush head is detachably disposed at the front end of the handle, and an air inlet connector for steam introduction is provided at the connecting end of the brush head; an opening and closing control module, wherein the opening and closing control module is embedded in the handle and disposed near the connecting end of the handle, wherein the opening and closing control module has a transmission channel for steam conduction and an opening and closing rod capable of continuously and elastically sealing the transmission channel; when the opening and closing rod is displaced to a first stroke, the transmission channel is closed, and when the opening and closing rod is displaced to a second stroke, the transmission channel is opened; and a control module, wherein the control module is fixedly disposed outside the opening and closing control module, and the control module has a control switch capable of adjusting the opening and closing rod from the first stroke to the second stroke.

[0008] Preferably, the opening and closing control module further includes a connecting seat, an air guide portion capable of directionally limiting the movement of the opening and closing rod, and a spring capable of continuously applying directional elastic force to the opening and closing rod; the air guide portion is embedded in the handle through the connecting seat; the end of the connecting seat away from the brush head is also provided with a slot and a fastening portion fixedly disposed in the slot; the transmission channel is provided through the air guide portion.

[0009] Preferably, the air guide section is composed of a first pipe section, a second pipe section, and a third pipe section that are fixedly connected in a Z-shape; and through holes for steam transmission are opened in each of the first and third pipe sections, and multiple sets of through holes are connected in series to form the transmission channel; a limiting ring that can limit the opening and closing rod is also coaxially arranged in the second pipe section near the third pipe section; the spring is coaxially arranged in the second pipe section, with one end of the spring abutting against the opening and closing rod and the other end abutting against the inner wall of the second pipe section.

[0010] Preferably, the opening and closing rod consists of a sliding rod and a flange, a first sealing ring, a conical ring, a guide ring, and a second sealing ring, which are coaxially fixed outside the sliding rod in sequence; the flange and the conical ring are both located at the front end of the sliding rod near the first pipe section; the first sealing ring is sleeved and installed outside the sliding rod, and is located between the flange and the conical ring, for abutting against the limiting ring; the guide ring is coaxially located at the rear end of the sliding rod; the second sealing ring is sleeved and installed at the rear end of the sliding rod and abuts against the guide ring.

[0011] Preferably, the control module further includes a locking member capable of locking the control switch in the open position at all times; the control switch is movably disposed within the handle and its front end is hinged to the handle; the locking member is slidably disposed outside the control switch and can slide and adjust along the long side of the control switch; the locking member includes a buckle plate that can pass through the control switch and be disposed towards the inside of the handle.

[0012] Fabric cleaning machine, including brush head switch structure.

[0013] The advantages of this utility model compared to the prior art are:

[0014] 1. This utility model achieves precise opening and closing control of the steam transmission channel through the cooperation of the opening and closing control module and the regulation module; when there is no external force, the opening and closing rod is reset to the first stroke position by the spring force to ensure that the transmission channel is in a closed state and effectively prevent steam leakage; when the regulation switch is pressed, the opening and closing rod slides axially to the second stroke position, quickly opening the transmission channel and making the steam output stable.

[0015] 2. This utility model employs a spring reset mechanism, which enables the opening and closing rod to automatically return to the closed position after the pressure is stopped, ensuring that the transmission channel is closed when not in use, preventing steam leakage, and improving energy utilization and safety. At the same time, during the movement of the opening and closing rod, the first sealing ring, guide ring, and second sealing ring dynamically seal the channel, preventing steam leakage between the opening and closing rod and the air guide, improving sealing reliability, and ensuring long-term stable operation of the equipment.

[0016] 3. This utility model achieves precise opening and closing control and continuous locking of the transmission channel through the cooperation of a control switch, locking component, and buckle plate. Operators can choose to press briefly to control instantaneous steam output or maintain continuous steam output by sliding the locking component, avoiding the operational fatigue caused by prolonged switch pressing required in traditional fabric washing machines and improving ease of use. Furthermore, the sliding positioning and buckling structure of the locking component ensures stable and reliable operation after locking, preventing accidental unlocking or steam interruption, thus improving the safety, stability, and service life of the washing equipment. Attached Figure Description

[0017] Figure 1 This is a 3D diagram of the brush head switch structure.

[0018] Figure 2 This is a side view of the brush head switch structure.

[0019] Figure 3 yes Figure 2 Sectional view at point AA.

[0020] Figure 4 yes Figure 3 A magnified view of section B.

[0021] Figure 5 This is a partial structural side view of the brush head switch structure.

[0022] Figure 6 yes Figure 5 Sectional view at point CC.

[0023] Figure 7 This is a three-dimensional structural breakdown of the on / off control module and the regulation module in the brush head switch structure. Figure 1 .

[0024] Figure 8 This is a three-dimensional structural breakdown of the on / off control module and the regulation module in the brush head switch structure. Figure 2 .

[0025] The numbers on the map are:

[0026] 1. Handle; 11. First conduit;

[0027] 2. Brush head; 21. Air inlet connector;

[0028] 3. Opening and closing control module; 31. Transmission channel; 32. Opening and closing rod; 321. Sliding rod; 322. Flange; 323. First sealing ring; 324. Conical ring; 325. Guide ring; 326. Second sealing ring; 33. Connecting seat; 331. Slot; 332. Fastening part; 34. Air guide part; 341. First pipe section; 342. Second pipe section; 343. Third pipe section; 344. Limiting ring; 35. Spring;

[0029] 4. Control module; 41. Control switch; 42. Locking component; 43. Buckle plate. Detailed Implementation

[0030] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0031] See Figures 1 to 8 The brush head switch structure includes: a handle 1, which has a first pipe 11 for steam transmission inside; a brush head 2, which is detachably disposed at the front end of the handle 1, and has an air inlet connector 21 for steam introduction at the connecting end of the brush head 2; an opening and closing control module 3, which is embedded in the handle 1 and disposed near the connecting end of the handle 1, and has a transmission channel 31 for steam conduction and an opening and closing rod 32 that can continuously and elastically block the transmission channel 31; when the opening and closing rod 32 moves to the first stroke, the transmission channel 31 is closed, and when the opening and closing rod 32 moves to the second stroke, the transmission channel 31 is opened; and an adjustment module 4, which is fixedly disposed outside the opening and closing control module 3, and has an adjustment switch 41 that can adjust the opening and closing rod 32 from the first stroke to the second stroke.

[0032] The input end of the opening and closing control module 3 is connected to the output end of the first pipe 11, and the output end of the opening and closing control module 3 is plugged into the air inlet connector 21 to ensure stable connection and fluid communication of the transmission channel 31.

[0033] In use, the main unit is first started (the main unit is existing technology and will not be described in detail here). The main unit generates high-temperature steam and transmits it to the first pipe 11. The steam is delivered to the opening and closing control module 3 through the first pipe 11 and finally introduced into the brush head 2 after passing through the opening and closing control module 3, so as to achieve effective steam supply.

[0034] In the non-working state, the opening and closing lever 32 remains at the first stroke position. At this time, the opening and closing lever 32 is continuously closed by the elastic force to ensure that steam will not leak accidentally. When it is necessary to open the transmission channel 31 to allow steam to flow into the brush head 2, the operator presses the control switch 41. Under the action of external force, the control switch 41 moves axially toward the opening and closing lever 32 and applies pressure to the opening and closing lever 32, causing the opening and closing lever 32 to slide along the guide structure from the first stroke position to the second stroke position, thereby opening the transmission channel 31 and realizing the smooth delivery of steam.

[0035] Through the coordinated design of the opening / closing control module 3, the opening / closing lever 32, and the regulating switch 41, precise control of the transmission channel 31 is achieved. In the non-operating state, the opening / closing lever 32 automatically returns to its original position, closing the transmission channel 31 to prevent steam leakage and improve safety. In the operating state, simply pressing the regulating switch 41 allows for the rapid opening of the transmission channel 31, and the opening / closing lever 32 can slide precisely within the controllable range, ensuring a stable steam supply. This design not only optimizes the ease of use of the fabric cleaning machine and makes steam output more controllable, but also improves the safety and energy efficiency of the equipment.

[0036] See Figure 7 and Figure 8 As shown: The opening and closing control module 3 also includes a connecting seat 33, an air guide 34 that can directionally limit the movement of the opening and closing rod 32, and a spring 35 that can continuously apply directional elastic force to the opening and closing rod 32; the air guide 34 is embedded in the handle 1 through the connecting seat 33; the end of the connecting seat 33 away from the brush head 2 is also provided with a slot 331 and a fastening part 332 fixedly disposed in the slot 331; the transmission channel 31 is opened through the air guide 34.

[0037] The air guide 34 is used to orient and limit the opening and closing rod 32, guide it to slide stably along the axial direction in the transmission channel 31, and provide continuous elastic support through the spring 35, so that the opening and closing rod 32 is always in the first stroke position, thereby ensuring that the transmission channel 31 remains closed in the non-working state and preventing steam leakage.

[0038] When it is necessary to open the transmission channel 31 to allow steam to flow, simply drive the control module 4 to operate. Under the action of external force, the control module 4 applies directional pressure to the top of the opening and closing rod 32, causing the opening and closing rod 32 to axially contract along the direction of the spring 35, thereby overcoming the return force of the spring 35 and causing the opening and closing rod 32 to slide from the first stroke to the second stroke, thereby opening the transmission channel 31 and realizing the smooth conduction of steam.

[0039] The precise control of the transmission channel 31 is achieved through the cooperation of the air guide 34, the opening and closing rod 32, and the spring 35 limiting mechanism. The air guide 34 ensures that the opening and closing rod 32 slides stably along the axial direction, avoiding deviation or jamming and improving the smoothness of the opening and closing process; the spring 35 continuously supports the opening and closing rod 32, so that it automatically closes the transmission channel 31 when not in operation, effectively preventing steam leakage and improving safety.

[0040] See Figure 6 and Figure 7 As shown: The air guide section 34 is composed of a first pipe section 341, a second pipe section 342, and a third pipe section 343 that are fixedly connected in a Z-shape; and through holes for steam transmission are opened in the first pipe section 341 to the third pipe section 343, and multiple sets of through holes are connected in series to form the transmission channel 31; a limiting ring 344 that can limit the opening and closing rod 32 is also coaxially arranged in the second pipe section 342 near the third pipe section 343; the spring 35 is coaxially arranged in the second pipe section 342, one end of the spring 35 abuts against the opening and closing rod 32, and the other end abuts against the inner wall of the second pipe section 342.

[0041] The air guide section 34 is connected to the first pipe 11 through the first pipe section 341 to achieve stable steam introduction, and is connected to the air inlet connector 21 through the third pipe section 343 to ensure smooth steam output, thereby constructing a steam transport path.

[0042] In the non-operating state, the opening / closing rod 32, under the continuous support of the spring 35, abuts against the limiting ring 344, ensuring that the transmission channel 31 is in a closed state. Simultaneously, the opening / closing rod 32 remains at the first stroke position to prevent steam leakage. When it is necessary to open the transmission channel 31, the drive control switch 41 applies pressure to the drive end of the opening / closing rod 32, causing the rod to move axially upwards along the second pipe section 342, away from the limiting ring 344. At this time, the transmission channel 31 is opened, and the opening / closing rod 32 enters the second stroke position, achieving smooth steam flow and thus completing precise opening and closing control of the steam passage.

[0043] When the control switch 41 stops applying pressure, the opening and closing rod 32 automatically resets under the return force of the spring 35 and abuts against the limit ring 344 again, thereby automatically closing the transmission channel 31, thus avoiding the ineffective loss of steam and ensuring the safety and stability of the steam transmission system.

[0044] The design of the air guide 34, the opening / closing lever 32, and the spring 35 reset mechanism enables precise control and automatic reset of the transmission channel 31. In the non-operating state, the opening / closing lever 32 automatically closes the channel using the force of the spring 35, preventing steam leakage and improving safety. During use, simply pressing the control switch 41 quickly opens the steam supply, reducing the burden of continuous pressing and improving ease of use. Simultaneously, the opening / closing lever 32 automatically returns to its original position after pressure is released, ensuring that the transmission channel 31 remains closed when not in use, preventing steam loss and improving energy efficiency.

[0045] See Figure 7 and Figure 8 As shown: The opening and closing rod 32 consists of a sliding rod 321 and a flange 322, a first sealing ring 323, a conical ring 324, a guide ring 325, and a second sealing ring 326, which are coaxially fixed outside the sliding rod 321 in sequence; the flange 322 and the conical ring 324 are both located at the front end of the sliding rod 321 near the first pipe section 341; the first sealing ring 323 is sleeved and installed outside the sliding rod and is located between the flange 322 and the conical ring 324 to abut against the limiting ring 344; the guide ring 325 is coaxially located at the rear end of the sliding rod 321; the second sealing ring 326 is sleeved and installed at the rear end of the sliding rod 321 and abuts against the guide ring 325.

[0046] The outer diameters of the flange 322, the first sealing ring 323, the conical ring 324, the guide ring 325, and the second sealing ring 326 are all smaller than the inner diameter of the second pipe section 342, but larger than the inner diameter of the limiting ring 344. This ensures that the opening and closing rod 32 has a stable axial guiding and positioning effect in the transmission channel 31. At the same time, an annular gap is formed between the opening and closing rod 32 and the pipe wall to provide a channel for steam flow and avoid fluid blockage that affects the steam delivery efficiency.

[0047] In the absence of external force, the opening / closing rod 32 moves axially toward the control switch 41 under the continuous pushing action of the spring 35, keeping it in the closed state. During this process, the first sealing ring 323 remains tightly abutted against the side wall of the limiting ring 344 under the force of the spring 35, thereby ensuring that the transmission channel 31 is in a closed state and preventing steam leakage when not in operation. The guide ring 325 and the second sealing ring 326 are used to dynamically seal the opening / closing rod 32 as it passes through the air guide section 34, thereby effectively preventing steam from leaking out along the gap between the opening / closing rod 32 and the air guide section 34, ensuring the airtightness and stability of the steam flow path.

[0048] See Figure 7As shown: The control module 4 is also provided with a locking member 42 that can always lock the control switch 41 in the open position; the control switch 41 is movably disposed in the handle 1 and its front end is hinged to the handle 1; the locking member 42 is slidably disposed outside the control switch 41 and can slide and adjust along the long side of the control switch 41; the locking member 42 is provided with a buckle plate 43 that can pass through the control switch 41 and face the handle 1.

[0049] When it is necessary to apply external pressure to the opening and closing rod 32 to open the transmission channel 31 and realize the steam transmission, the operator only needs to press the control module 4. At this time, the control switch 41 rotates around the hinge point as the axis and applies pressure to the drive end of the opening and closing rod 32, causing the opening and closing rod 32 to slide axially, thereby opening the transmission channel 31 and realizing the smooth transmission of steam.

[0050] When it is necessary to keep the transmission channel 31 continuously open, the operator first adjusts the locking member 42 along the slide rail to the far end of the control switch 41, i.e., the end away from the hinge point; then, the control switch 41 is pressed to its maximum stroke, so that it is fully pressed. After the control switch 41 is fully pressed, the operator again drives the locking member 42 to slide along the slide rail toward the near end of the control switch 41. At this time, the buckle plate 43 provided on the locking member 42 will engage with the buckle part 332 provided on the connecting seat 33, thereby achieving the effect of locking the control switch 41 in the open position, thus maintaining the continuous output of steam without the need for the operator to continuously apply pressure.

[0051] Fabric cleaning machine, including brush head switch structure.

[0052] This invention can automatically adjust the steam output state according to the usage requirements, and is simple to operate and effective.

[0053] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A brush head switch structure, characterized by, include: Handle (1), wherein a first pipe (11) for steam transmission is provided inside the handle (1); Brush head (2), the brush head (2) is detachably disposed at the front end of the handle (1), and the connecting end of the brush head (2) is provided with an air inlet connector (21) for steam introduction. An opening and closing control module (3) is embedded in the handle (1) and located near the connection end of the handle (1). The opening and closing control module (3) has a transmission channel (31) for steam conduction and an opening and closing rod (32) that can continuously and elastically block the transmission channel (31). When the opening and closing rod (32) moves to the first stroke, the transmission channel (31) is closed. When the opening and closing rod (32) moves to the second stroke, the transmission channel (31) is opened. The control module (4) is fixedly installed outside the opening and closing control module (3). The control module (4) is provided with a control switch (41) that can adjust the opening and closing lever (32) from the first stroke to the second stroke. The control module (4) is also provided with a locking member (42) that can always lock the control switch (41) in the open position; the control switch (41) is movably disposed in the handle (1) and the front end is hinged to the handle (1); the locking member (42) is slidably disposed outside the control switch (41) and can slide and adjust along the long side of the control switch (41); the locking member (42) is provided with a buckle plate (43) that can pass through the control switch (41) and be disposed in the handle (1).

2. The brush head switch structure of claim 1, wherein, The opening and closing control module (3) also includes a connecting seat (33), an air guide (34) that can directionally limit the movement of the opening and closing rod (32), and a spring (35) that can continuously apply directional elastic force to the opening and closing rod (32). The air guide (34) is embedded in the handle (1) via the connecting seat (33); The end of the connecting seat (33) away from the brush head (2) is also provided with a slot (331) and a fastening part (332) fixedly disposed in the slot (331). The transmission channel (31) is opened through the air guide (34).

3. The brush head switch structure of claim 2, wherein, The gas guide section (34) is composed of a first pipe section (341), a second pipe section (342) and a third pipe section (343) that are fixedly connected in a Z-shape; and through holes for steam transmission are opened in the first pipe section (341) to the third pipe section (343), and multiple sets of through holes are connected in series to form the transmission channel (31). The second pipe section (342) is also coaxially provided with a limiting ring (344) that can limit the opening and closing rod (32) at one end near the third pipe section (343). The spring (35) is coaxially disposed inside the second pipe section (342). One end of the spring (35) abuts against the opening and closing rod (32), and the other end abuts against the inner wall of the second pipe section (342).

4. The brush head switch structure according to claim 3, characterized in that, The opening and closing rod (32) is composed of a sliding rod (321) and a flange (322), a first sealing ring (323), a cone ring (324), a guide ring (325), and a second sealing ring (326) that are coaxially fixed outside the sliding rod (321) in sequence; The flange (322) and the cone ring (324) are both located at the front end of the sliding rod (321) near the first pipe section (341); The first sealing ring (323) is sleeved and installed outside the sliding rod (321) and is disposed between the flange (322) and the cone ring (324) to abut against the limiting ring (344); The guide ring (325) is coaxially disposed at the rear end of the sliding rod (321); The second sealing ring (326) is fitted onto the rear end of the sliding rod (321) and abuts against the guide ring (325).

5. A fabric cleaning machine characterised in that, Includes the brush head switch structure as described in any one of claims 1-4.