Roller water inlet structure in scrubber
By coordinating the design of the support cylinder and the drive cylinder, the problem of uneven water intake in the floor scrubber drum is solved, achieving uniform wetting of the drum surface, improving equipment stability, and extending service life.
Patent Information
- Application Number
- CN202511679971.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-01-23
AI Technical Summary
The existing water inlet structure of floor scrubbers results in uneven water flow distribution, affecting cleaning performance and equipment reliability, and is also prone to wear and water spillage.
The design employs a coordinated approach between the support cylinder and the drive cylinder. Through the water channels and water passage gaps within the support cylinder, combined with the water passage holes on the drive cylinder, the water flow is evenly distributed along the roller axis. Centrifugal force then propels the water to the cleaning sleeve, while a sealing structure prevents overflow.
This achieves uniform wetting of the roller surface, improves cleaning effect and equipment stability, reduces wear risk, and extends the service life of the floor scrubber.
Smart Images

Figure CN121369976A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of floor washing machines, in particular to a water inlet structure of an inner roller of a floor washing machine. BACKGROUND
[0002] In the technical field of floor washing machines, the roller assembly is the core execution component of ground cleaning, and the design of its water inlet structure directly determines the cleaning effect, equipment reliability and user experience. The current market floor washing machine roller water inlet scheme generally has the following problems: Most products use external water spraying or roller end water inlet. External water spraying can cause water flow to concentrate on the local part of the roller, resulting in uneven surface wetness. Local over-wetting can leave water stains, and local over-drying can reduce cleaning power. Excess water can easily spill and contaminate the internal equipment. SUMMARY
[0003] To solve the technical problems in the background art, the present application provides a water inlet structure of an inner roller of a floor washing machine.
[0004] The water inlet structure of the inner roller of the floor washing machine provided by the present application comprises a support cylinder, a roller brush motor is fixedly installed inside the support cylinder through a motor base, a shaft rod is connected to the driving end of the roller brush motor, a driving wheel is installed at the end of the shaft rod, a driving cylinder is arranged outside the support cylinder, the driving wheel drives the rotation of the driving cylinder, a plurality of water passing holes are formed through the surface of the driving cylinder, a water passing gap is reserved between the support cylinder and the driving cylinder, a water channel is formed along the length direction of the surface of the support cylinder, a cleaning sleeve is arranged outside the driving cylinder, and a water inlet pipe is arranged on one side of the motor base and connected to the water inlet of the water channel.
[0005] Further, the support cylinder is made of plastic material as a support and waterproof carrier.
[0006] Further, the water channel is in a straight line shape or a spiral shape, and the spiral shape improves the uniformity of water delivery.
[0007] Further, the roller brush motor is rotatably connected with a bearing outside the roller brush motor, the support cylinder is located between the driving wheel and the bearing, and the bearing is rotatably connected with the driving cylinder.
[0008] Further, a water pipe channel is reserved in the motor base, the water inlet pipe is fixed in the water pipe channel, and the water inlet end of the water inlet pipe extends to the outside of the motor base through the water pipe channel.
[0009] Further, the support cylinder is fixedly connected with a check ring at both ends, and a sealing ring is arranged between the support cylinder and the drive cylinder at both ends to prevent water in the water passing gap from overflowing.
[0010] Further, the cleaning sleeve is made of fiber or cotton fabric to clean the ground.
[0011] Further, the length of the drive cylinder is greater than that of the support cylinder, and the inner wall of the drive cylinder is provided with a drive wheel and a bearing outside both ends of the support cylinder, the drive cylinder is driven to rotate by the roller brush motor, and the support cylinder is fixed.
[0012] Further, the front end of the roller brush motor is provided with a fixing seat, the shaft rod extends to the outside through the drive wheel, and a bearing is connected between the front end fixing seat of the roller brush motor and the end of the shaft rod for fixing the support cylinder and the roller brush motor.
[0013] Further, the method further comprises the following steps: S1, first, water is introduced into the water passing gap through the water inlet pipe; S2, after the water enters the water passing gap, the water flows rapidly into the water passing gap, and then the roller brush motor is started; under the action of the centrifugal force generated by the high-speed rotation of the roller brush motor, the water in the water passing gap flows out through the plurality of water passing holes, and the outer part of the plurality of water passing holes is also provided with a cleaning sleeve made of water-absorbing material, so that the cleaning sleeve can be wetted; S3, after the sleeve is wetted, the cleaning sleeve is driven by the roller brush motor to rotate at high speed to clean the ground, and clean water continuously enters and flows out to clean the ground during the cleaning process.
[0014] The application has the following advantages: through the cooperative design of the water channel of the support cylinder, the water passing gap and the water passing hole of the drive cylinder, the water flow can be uniformly distributed along the axis of the roller and penetrated into the cleaning sleeve, the problem of uneven wetting of the roller caused by traditional external water spraying or end water inlet is solved, the ground cleaning effect is consistent, the check ring and the sealing ring at both ends of the support cylinder and the drive cylinder form airtight sealing, the water in the water passing gap can be effectively prevented from overflowing, the core components such as the roller brush motor are prevented from being eroded, the bearing reduces the rotation resistance of the drive cylinder, the overall structure is simple and reasonable, the equipment running stability is improved, the water overflow failure and component wear are reduced, and the service life of the scrubber is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The present application is a split structure schematic diagram; Figure 2The assembly structure of the present application is shown in the figure; Figure 3 The half sectional view of the assembled present application is shown in the figure; Figure 4 The structure schematic diagram of the water channel being set as a spiral shape in the present application is shown in the figure.
[0016] Figure 5 The explosion schematic diagram of the present application is shown in the figure; Figure 6 The explosion schematic diagram of the cleaning sleeve and the driving cylinder of the present application is shown in the figure; Figure 7 The water passing gap schematic diagram of the present application is shown in the figure; Figure 8 The enlarged assembly structure of the present application is shown in the figure Figure 1 .
[0017] Figure 9 The enlarged assembly structure of the present application is shown in the figure Figure 2 .
[0018] In the figure: 1, support cylinder; 101, water channel; 102, water passing gap; 2, rolling brush motor; 201, motor base; 3, shaft rod; 4, driving wheel; 5, driving cylinder; 501, water passing hole; 6, cleaning sleeve; 7, bearing; 8, water inlet pipe; 9, check ring; 10, sealing ring. DETAILED DESCRIPTION
[0019] Referring to Figures 1-7 , the present application proposes a water inlet structure of an inner rolling cylinder of a floor cleaning machine, which comprises a support cylinder 1, the support cylinder 1 is made of plastic material, which not only bears the support of the whole water inlet structure and related parts, but also has good waterproof performance, thereby providing a stable carrier for subsequent water delivery and cleaning operation, the inside of the support cylinder 1 is fixedly installed with a rolling brush motor 2 through a motor base 201, a special water pipe channel is reserved in the inside of the motor base 201, a water inlet pipe 8 is fixed in the channel, and the water inlet end of the water inlet pipe 8 extends to the outside of the motor base 201 through the water pipe channel, so as to be conveniently connected with an external water source and realize water supply input; The driving end of the rolling brush motor 2 is connected with a shaft rod 3, the end of the shaft rod 3 is installed with a driving wheel 4, and the outside of the rolling brush motor 2 is rotatably connected with a bearing 7, the support cylinder 1 is located between the driving wheel 4 and the bearing 7, and the bearing 7 is rotatably connected with a driving cylinder 5 outside the support cylinder 1, when the rolling brush motor 2 is started, power is transmitted to the driving wheel 4 through the shaft rod 3, the driving wheel 4 drives the driving cylinder 5 to stably rotate through the friction force formed by the extrusion force of the inner surface of the driving cylinder 5, and the setting of the bearing 7 effectively reduces the friction resistance when the driving cylinder 5 rotates, thereby ensuring the smoothness of the rotating action; The surface of the support cylinder 1 is provided with water channels 101 along the length direction, which can be linear or spiral, and the spiral design can significantly improve the uniformity of water delivery, ensuring that the input water can cover the entire support cylinder 1. A water gap 102 is reserved between the support cylinder 1 and the drive cylinder 5, which provides a channel for water flow. The surface of the drive cylinder 5 is provided with a plurality of water holes 501, which connect the water gap 102 with the cleaning sleeve 6 outside the drive cylinder 5. The cleaning sleeve 6 is made of fiber or cotton material, which has good water absorption and cleaning ability and can directly contact the ground to complete the cleaning work. To prevent water in the water gap 102 from overflowing during operation, the support cylinder 1 is fixedly connected with a stop ring 9 at both ends, and a sealing ring 10 is installed between the support cylinder 1 and the drive cylinder 5 at both ends. The stop ring 9 and the sealing ring 10 cooperate to form a tight sealing structure, effectively blocking the water overflow path and ensuring the waterproof sealing of the water inlet structure.
[0020] In addition, it should be noted that the water inlet pipe 8 is provided as a flexible pipe, which is convenient for arranging the water pipe and needs to pass through the lower part of the sealing ring 10, so it must have a certain deformation ability. That is, when the water inlet pipe 8 is filled with water, the sealing ring 10 will be flattened by its own elastic force. Once the water inlet pipe 8 is filled with high-pressure water flow, the water inlet pipe 8 will immediately change from flat to round.
[0021] Please read Figure 5 The length of the drive cylinder 5 is greater than that of the support cylinder 1, and the inner wall of the drive cylinder 5 is provided with a drive wheel 4 and a bearing 7 outside both ends of the support cylinder 1. The drive cylinder 5 is driven to rotate by the roller brush motor 2, and the support cylinder 1 is fixed. In this way, high-speed rotation can be achieved to clean the ground.
[0022] The front end of the roller brush motor 2 is provided with a fixing seat (not marked), and the shaft 3 extends to the outside through the drive wheel 4. The front end of the roller brush motor 2 is fixed to the shaft 3 through the fixing seat and the end of the shaft 3, and a bearing (not marked) is connected for fixing the support cylinder 1 and the roller brush motor 2. In the prior art, the fixing seat and the end of the shaft 3 are connected with a bearing, which is a prior art in washing machines.
[0023] The working process of the structure is as follows: an external water source is input through the water inlet pipe 8, flows into the water channel 101 of the support cylinder 1 through the water pipe channel in the motor base 201, and is uniformly distributed along the water channel 101 and then enters the water passing gap 102 between the support cylinder 1 and the drive cylinder 5. At the same time, the roller brush motor 2 drives the rotation of the drive cylinder 5, and the water flow in the water passing gap 102 penetrates into the external cleaning sleeve 6 through the water passing holes 501 on the drive cylinder 5, so that the cleaning sleeve 6 is kept in a wet state. The rotating cleaning sleeve 6 is in full contact with the ground, realizing the scrubbing and cleaning of the ground. The sealing structure prevents water overflow during the whole process, the spiral water channel ensures uniform water supply, and the bearing reduces the rotating resistance, ensuring efficient and stable cleaning operation.
[0024] In addition, the patent also includes the following steps method; S1, first, water is input into the water passing gap after the water inlet pipe is connected to the water pump of the machine (the machine is provided with a water pump); S2, after the water enters the water passing gap, the water will flow rapidly into the water passing gap, and then the roller brush motor is started. After the roller brush motor rotates at high speed, the water in the water passing gap will flow out through the water passing holes under the action of the centrifugal force generated by the high-speed rotation. The external part of the water passing holes is also provided with a cleaning sleeve, and the cleaning sleeve is made of a water-absorbing material, so that the cleaning sleeve can be wetted by the water flowing out of the inside. Since the water passing gap is in a closed state, the water flow is very slow when the machine does not rotate. Only when the roller brush motor rotates at high speed can the centrifugal force be generated to throw the water in the inside to the cleaning sleeve, S3, after the sleeve is wetted, the cleaning sleeve rotates at high speed under the drive of the roller brush motor, and the ground is cleaned. During the cleaning process, clean water continuously enters and flows out to clean the ground, After cleaning, the roller can be easily cleaned. Only clean water needs to be continuously supplied to lift the roller so as to not contact the ground. The drive wheel is rotated by the high-speed rotation of the roller brush motor. Since the cleaning sleeve and the scrubber are designed to have a contact scraper, the surface of the cleaning sleeve is hung and washed by the scraper, so that the cleaning sleeve is cleaned. In addition, the roller can be taken to the washroom to open the water faucet to clean the roller. During the cleaning process, the drive cylinder is rotated at high speed by opening the roller brush motor, so that the water pump is not started, and the cleaning sleeve 6 is cleaned by the water faucet.
[0025] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A water inlet structure for an inner drum of a floor scrubber, comprising a support cylinder (1), characterized in that, The support cylinder (1) is fixedly installed with a roller brush motor (2) inside by a motor base (201). The drive end of the roller brush motor (2) is connected to a shaft (3). A drive wheel (4) is installed at the end of the shaft (3). A drive cylinder (5) is provided outside the support cylinder (1). The drive wheel (4) drives the cylinder (5) to rotate. Several water passage holes (501) are opened through the surface of the drive cylinder (5). A water passage gap (102) is reserved between the support cylinder (1) and the drive cylinder (5). A water channel (101) is opened along the length direction of the surface of the support cylinder (1). A cleaning sleeve (6) is fitted outside the drive cylinder (5). A water inlet pipe (8) connected to the water inlet of the water channel (101) is provided on one side of the motor base (201).
2. The water inlet structure of the inner drum of the floor scrubber according to claim 1, characterized in that, The support cylinder (1) is made of plastic to serve as a support and waterproof carrier.
3. The water inlet structure of the inner drum of the floor scrubber according to claim 1, characterized in that, The waterway (101) is configured as a straight line or a spiral shape, with the spiral shape improving the uniformity of water delivery.
4. The water inlet structure of the inner drum of the floor scrubber according to claim 1, characterized in that, The external rotatable connection of the roller brush motor (2) is a bearing (7), the support cylinder (1) is located between the drive wheel (4) and the bearing (7), and the bearing (7) is rotatably connected to the drive cylinder (5).
5. The water inlet structure of the inner drum of the floor scrubber according to claim 1, characterized in that, The motor base (201) has a water pipe channel reserved inside, the water inlet pipe (8) is fixed in the water pipe channel, and the water inlet end of the water inlet pipe (8) extends to the outside of the motor base (201) through the water pipe channel.
6. The water inlet structure of the inner drum of the floor scrubber according to claim 1, characterized in that, Both ends of the support cylinder (1) are fixedly connected with retaining rings (9), and both ends of the support cylinder (1) and the drive cylinder (5) are provided with sealing rings (10) to prevent water in the water passage gap (102) from overflowing.
7. The water inlet structure of the inner drum of the floor scrubber according to claim 1, characterized in that, The cleaning sleeve (6) is made of fiber or cotton cloth to clean the floor.
8. The water inlet structure of the inner drum of the floor scrubber according to claim 1, characterized in that, The length of the drive cylinder (5) is greater than the length of the support cylinder (1). The inner wall of the drive cylinder (5) is provided with drive wheels (4) and bearings (7) on the outer sides of both ends of the support cylinder (1). The drive cylinder (5) is driven to rotate by the roller brush motor (2), while the support cylinder (1) remains fixed.
9. The water inlet structure of the inner drum of the floor scrubber according to claim 1, characterized in that, The front end of the roller brush motor (2) is provided with a fixed seat, and the shaft (3) extends to the outside through the drive wheel (4). The front fixed seat of the roller brush motor (2) and the end of the shaft (3) are connected to a bearing for fixing the support cylinder (1) and the roller brush motor (2).
10. The water supply method for the water inlet structure of the inner drum of the floor scrubber according to any one of claims 1-9, characterized in that, Includes the following steps; S1 first allows water to flow through the inlet pipe, so that the water enters the interior of the water passage gap; After S2 water enters the water passage gap, the water will quickly flow into the water passage gap and then start the roller brush motor. After the roller brush motor rotates at high speed, the centrifugal force generated by the high speed rotation will cause the water in the water passage gap to flow out through several water passage holes. The outside of several water passage holes is also equipped with a cleaning sleeve. The cleaning sleeve is made of water-absorbing material so that the cleaning sleeve can be wetted. After the sleeve is wetted, the cleaning sleeve rotates at high speed driven by the roller brush motor to clean the ground. During the cleaning process, clean water continuously enters and flows out to clean the ground.