A floor cleaning machine exhaust hot air drying device

By combining a vacuuming and hot air drying mechanism into the floor scrubber, the problem of damp floors after cleaning is solved, achieving efficient cleaning and motor protection.

CN118902331BActive Publication Date: 2025-10-31JIANGSU UNIV OF SCI & TECH IND TECH RES INST OF ZHANGJIAGANG
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Patent Information

Application Number
CN202411195191.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-29
Publication Date
2025-10-31
Estimated Expiration
2044-08-29

AI Technical Summary

Technical Problem

After a floor scrubber cleans the floor, damp marks may remain, which can cause slippery surfaces and pose health risks.

Method used

The floor scrubber is designed with a dust suction mechanism and a hot air drying mechanism. The dust is removed by the negative pressure vacuum suction generated by the dust suction motor, and the floor is dried by the air duct structure heated by heating wires.

Benefits of technology

It effectively solves the problem of damp ground, improves cleaning efficiency, prevents slipping, protects the motor, and reduces energy consumption.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This invention relates to the field of floor cleaning and drying technology, specifically to a hot air drying device for floor scrubber exhaust. The device includes a housing, a dust collection mechanism, a hot air drying mechanism, and a wastewater tank mechanism. The dust collection mechanism is positioned above the wastewater tank mechanism, and the hot air drying mechanism is located to the right of the wastewater tank mechanism. When the floor scrubber is working, after cleaning the floor on the left side, the hot air on the right side can promptly dry the damp floor, completing the entire cleaning process. This invention, through the coordinated operation of the dust collection mechanism and the hot air drying mechanism, achieves both exhaust and floor drying, making the floor scrubber more energy-efficient and environmentally friendly during operation. The unique air duct design accelerates the exhaust speed of the dust collection motor. Furthermore, during reverse rotation, gas may enter the motor's exhaust tail, potentially damaging its lifespan. The air duct structure greatly prevents reverse gas entry and accelerates gas flow during forward rotation.
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Description

Technical Field

[0001] This invention relates to the field of floor cleaning and drying technology, specifically to a device for drying floors with hot air from the exhaust of a floor scrubber. Background Technology

[0002] With the improvement of living standards and the continuous development of technology, machines that can replace human vacuuming and mopping have emerged – floor scrubbers, which can greatly improve human living comfort and the convenience of cleaning home floors.

[0003] However, currently, floor scrubbers often leave damp marks on the floor after cleaning, which is a common problem. Just like a hair dryer dries hair after washing it, floor scrubbers can greatly improve cleaning efficiency and quality by drying the floor with hot air while cleaning. This also helps prevent people from slipping and falling, which is very beneficial to people's health. Therefore, we have proposed a floor scrubber exhaust hot air drying device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a floor cleaning device that uses hot air from the exhaust of a floor scrubber to dry the floor, thereby solving the problem mentioned in the background art that after the floor scrubber has cleaned the floor, there will be damp marks on the floor, which may cause people to slip and fall when passing by.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a floor scrubber exhaust hot air drying device, comprising a shell, a dust collection mechanism, a hot air drying mechanism, and a wastewater tank mechanism. The dust collection mechanism is placed above the wastewater tank mechanism, and the hot air drying mechanism is on the right side of the wastewater tank mechanism. When the floor scrubber is working, after the left side of the floor is cleaned, the hot air on the right side can dry the damp floor in time, thus completing the entire cleaning process.

[0006] The floor scrubber's vacuuming mechanism is installed inside the outer casing. This mechanism mainly consists of a vacuum motor, motor shock absorbers, a motor cover, and a motor rear cover. The outer side of the motor cover is connected to the motor rear cover via snap-fit ​​connections. The vacuum motor is installed inside the motor cover and rear cover. A motor shock absorber is mounted on top of the vacuum motor. The high-speed rotation of the vacuum motor creates a negative pressure vacuum at the inlet, thereby generating suction to remove dust.

[0007] The hot air drying mechanism is installed outside the vacuuming mechanism. The hot air drying mechanism consists of a heating wire, a small volute fan, a front cover and a rear cover. The exhaust gas from the vacuuming motor is heated by the heating wire through the air blown out by the small volute fan. The outer shell is composed of a front cover and a rear cover, which are connected. The inner walls of the front cover and the rear cover are provided with air ducts. Hot air is discharged through the unique air duct structure, thereby drying the damp floor.

[0008] The clean water tank mechanism consists of a clean water tank body, a wastewater tank body, a suction connection pipe, a wastewater tank diversion cover, a clean water tank pressure block, a clean water tank spring, a clean water tank inner cover, a wastewater tank disassembly button, a wastewater tank disassembly spring, and a clean water tank water pumping sealing ring.

[0009] Preferably, the right side of the heating wire is provided with an exhaust gas endpoint at the bottom of the rear cover of the machine, and the top of the vacuum motor is provided with an exhaust gas starting point. The air duct formed by the front cover and the rear cover of the machine is a Tesla valve structure, which allows the branched airflow to converge with the main flow when the airflow is flowing, thereby accelerating the airflow. When the air duct exhausts in the reverse direction, the branched airflow and the main flow come into contact and generate reverse resistance, thereby greatly hindering the airflow.

[0010] Preferably, a clean water tank body is installed on the inner wall of the front cover of the machine body, a wastewater tank body is installed on the lower side of the clean water tank body, a suction connection pipe is connected to the outer side of the wastewater tank body, a wastewater tank disassembly button is installed at the upper end of the suction connection pipe, a wastewater tank disassembly spring is installed inside the wastewater tank disassembly button, a wastewater tank diversion cover is installed on the outer side of the clean water tank body, a clean water tank pressure block is installed at the bottom of the wastewater tank diversion cover, a clean water tank spring is installed inside the clean water tank pressure block, a clean water tank inner cover is installed on the outer side of the clean water tank spring, a clean water tank suction sealing ring is sleeved on the outer side of the clean water tank inner cover, and the clean water tank body is connected to the wastewater tank diversion cover through the clean water tank spring and the clean water tank pressure block.

[0011] Preferably, a power connection plate is installed on the right side of the vacuum motor, and an upper cover plate is installed on the upper side of the motor rear cover. The motor rear cover and the upper cover plate are connected by a bottom plate of the upper cover plate.

[0012] Preferably, an upper sealing ring is fitted around the upper periphery of the vacuum motor, and a lower sealing ring is fitted around the lower periphery of the vacuum motor.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the process of using floor scrubbers, the floor may be damp after cleaning, leading to a series of adverse consequences, such as slipping and falling, and bacterial growth. Therefore, post-processing floor drying is very important. The dust extraction mechanism and hot air drying mechanism of this invention work together to achieve the functions of exhaust and drying the floor, making the floor scrubber more energy-efficient and environmentally friendly during operation.

[0015] 2. This invention uses a hot air drying mechanism and a unique air duct design to accelerate the exhaust speed of the vacuum motor. At the same time, the vacuum motor may rotate in both directions during operation. When rotating in reverse, gas may enter the tail of the motor, which may damage the motor's lifespan. The air duct structure can greatly prevent gas from entering in reverse and accelerate the gas flow rate when rotating in the forward direction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an overall appearance drawing of the present invention;

[0018] Figure 2 It is a 3D diagram of the vacuum cleaner mechanism;

[0019] Figure 3 This is a diagram showing the airflow direction of a hot air drying floor system.

[0020] Figure 4 This is an exploded view of the entire invention;

[0021] Figure 5 This is an exploded view of the vacuum cleaner mechanism;

[0022] Figure 6 This is an exploded view of a hot air drying ground mechanism;

[0023] Figure 7 This is a diagram of a single-branch exhaust duct for hot air drying of the ground;

[0024] Figure 8 This is a diagram of a reverse exhaust duct with a single branch point for hot air drying.

[0025] Figure 9 This is an overall intermediate sectional view of the present invention.

[0026] Figure 10 This is the main view of the working status;

[0027] Figure 11 This is a top view of the working state.

[0028] In the diagram: 100, outer casing; 200, vacuuming mechanism; 300, hot air drying mechanism; 210, vacuum motor; 220, motor shock absorber; 230, motor cover; 240, motor rear cover; 250, upper motor seal; 260, lower motor seal; 310, heating wire; 320, small volute fan; 330, exhaust gas starting point; 340, exhaust gas ending point; 350, front cover of the unit; 360. 370. Rear cover of the machine; 380. Upper cover plate of the machine; 390. Power connection plate of the machine body; 400. Bottom plate of the upper cover of the machine; 410. Clean water tank body; 420. Wastewater tank body; 430. Suction connection pipe; 440. Wastewater tank diversion cover; 450. Clean water tank pressure block; 460. Clean water tank spring; 470. Inner cover of the clean water tank; 480. Wastewater tank removal button; 490. Wastewater tank removal spring; 401. Clean water tank water pumping sealing ring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-11 The present invention provides an embodiment of a floor scrubber exhaust hot air drying device, comprising a housing 100, a dust collection mechanism 200, a hot air drying mechanism 300, and a wastewater tank mechanism. The dust collection mechanism 200 is placed above the wastewater tank mechanism, and the hot air drying mechanism 300 is on the right side of the wastewater tank mechanism. When the floor scrubber is working, after the left side of the floor is cleaned, the hot air on the right side can dry the damp floor in time, thus completing the entire cleaning process.

[0031] The floor scrubber's vacuuming mechanism 200 is installed inside the outer casing 100. The vacuuming mechanism 200 mainly consists of a vacuum motor 210, a motor shock absorber 220, a motor cover 230, and a motor rear cover 240. The outer side of the motor cover 230 is connected to the motor rear cover 240 via snap-fit ​​connections. The vacuum motor 210 is installed inside the motor cover 230 and the motor rear cover 240. The motor shock absorber 220 is installed on top of the vacuum motor 210. The high-speed rotation of the vacuum motor 210 generates a negative pressure vacuum at the inlet, thereby generating suction to collect dust.

[0032] The hot air drying floor mechanism 300 is installed outside the vacuuming mechanism 200. The hot air drying floor mechanism 300 includes a heating wire 310, a small volute fan 320, a front cover 350 and a rear cover 360. The exhaust gas from the vacuuming motor 210 is heated by the heating wire 310 through the air blown out by the small volute fan 320. The outer shell 100 is composed of the front cover 350 and the rear cover 360. The front cover 350 and the rear cover 360 are connected, and the inner walls of the front cover 350 and the rear cover 360 are provided with air ducts. Hot air is discharged through the unique air duct structure, thereby drying the damp floor.

[0033] The clean water tank mechanism consists of a clean water tank body 400, a waste water tank body 410, a suction connection pipe 420, a waste water tank diversion cover 430, a clean water tank pressure block 440, a clean water tank spring 450, a clean water tank inner cover 460, a waste water tank removal button 470, a waste water tank removal spring 480, and a clean water tank water pumping sealing ring 490.

[0034] This device, through the combined use of a vacuuming mechanism 200 and a hot air drying mechanism 300, solves the problem that after the floor scrubber has cleaned the floor, damp marks will appear on the floor, which may cause slips and falls when passing by.

[0035] Furthermore, the right side of the heating wire 310, located at the bottom of the rear cover 360, has an exhaust gas endpoint 340, and the top of the vacuum motor 210 has an exhaust gas starting point 330. The air duct formed by the front cover 350 and the rear cover 360 is a Tesla valve structure, which allows branched airflows to converge with the main flow during airflow, accelerating the airflow. When the air duct exhausts in the reverse direction, the branched airflows generate reverse resistance when they come into contact with the main flow, thus greatly hindering the airflow and preventing dust from being sucked into the tail of the vacuum motor 210, which could damage the motor. This invention makes it difficult for the airflow to flow in the reverse direction, thereby protecting the motor while accelerating the forward exhaust speed and speeding up the drying of the floor. Figure 3 As shown, this structure is used to generate a negative pressure vacuum at the inlet by the high-speed rotation of the vacuum motor 210, thereby generating suction to suck up dust. When the air passes through the exhaust starting point 330 of the vacuum motor 210, it is heated after passing through the vacuum motor 210, so the exhaust is hot air. In conjunction with the hot air drying floor mechanism 300, the exhaust ends 340 of the outermost air outlet of the vacuum motor 210, thereby achieving the effect of drying the floor. By making reasonable use of the hot air generated by the vacuum motor 210 to dry the cleaned floor, the floor scrubber is more energy-saving and environmentally friendly during operation.

[0036] Furthermore, a clean water tank body 400 is installed on the inner wall of the front cover 350 of the machine body. A wastewater tank body 410 is installed on the lower side of the clean water tank body 400. A suction connection pipe 420 is connected to the outer side of the wastewater tank body 410. A wastewater tank removal button 470 is installed at the upper end of the suction connection pipe 420. A wastewater tank removal spring 480 is installed inside the wastewater tank body 470. A small electric pump is installed inside the clean water tank body 400. A sewage tank diversion cover 430 is installed on the outside of the sewage tank diversion cover 430. A clean water tank pressure block 440 is installed at the bottom of the sewage tank diversion cover 430. A clean water tank spring 450 is installed inside the clean water tank pressure block 440. A clean water tank inner cover 460 is installed on the outside of the clean water tank spring 450. A clean water tank suction sealing ring 490 is sleeved on the outside of the clean water tank inner cover 460. The clean water tank body 400 is connected to the sewage tank diversion cover 430 through the clean water tank spring 450 and the clean water tank pressure block 440. Figure 4 As shown, this structure is used to separate the wastewater after the floor is cleaned by the floor scrubber through the suction connection pipe 420 and the wastewater tank diversion cover 430, so that some larger garbage and dirt settle at the bottom of the wastewater tank body 410. After cleaning is completed, the wastewater tank is removed by pressing the wastewater tank removal button 470, the wastewater is poured out, and when replenishing the clean water tank body 400, the clean water tank spring 450 is pressed to drive the clean water tank pressure block 440 to move, and the clean water tank body 400 can be taken out to replenish the clean water tank body 400.

[0037] Furthermore, a power connection plate 380 is installed on the right side of the vacuum motor 210, and a top cover plate 370 is installed on the upper side of the motor rear cover 240. The motor rear cover 240 and the top cover plate 370 are connected by a bottom plate 390. Figure 4 As shown, this structure is used to fix the motor rear cover 240 through the upper cover plate 370 of the machine body, thereby enhancing the robustness of the device, and to control the vacuum motor 210 through the power connection plate 380 of the machine body, thereby adjusting the power of the vacuum motor 210.

[0038] Furthermore, an upper sealing ring 250 is fitted around the upper periphery of the vacuum motor 210, and a lower sealing ring 260 is fitted around the lower periphery of the vacuum motor 210. For example... Figure 5 As shown, this structure is used to enhance the sealing of the device through the upper motor sealing ring 250 and the lower motor sealing ring 260, while ensuring that the vacuum motor 210 is stably installed inside the motor cover 230 and the motor rear cover 240.

[0039] Working principle: When using, such as Figure 5 and Figure 11As shown, the vacuum motor 210 is started by controlling the top cover plate 370 and the power connection plate 380 of the device. Simultaneously, the device is moved, and the high-speed rotation of the vacuum motor 210 creates a negative pressure vacuum at the inlet, thereby generating suction to absorb dust from the ground. Figure 4 As shown, a small electric pump at the water tank outlet of the clean water tank 400 starts, spraying water onto the ground under pressure. This allows for more precise control of water flow and pressure for cleaning. Simultaneously, the wastewater from the floor scrubber is separated by the wastewater tank diversion cover 430, causing larger debris to settle at the bottom of the wastewater tank 410. Figure 3 and Figure 6 As shown, when the air passes through the exhaust starting point 330 of the vacuum motor 210, it is heated after passing through the vacuum motor 210, so the exhaust is hot air. The hot air is discharged from the exhaust endpoint 340 through the air ducts in the front cover 350 and the rear cover 360 of the machine body via the heating wire 310 and the small volute fan 320, thereby achieving the effect of drying the floor. The hot air generated by the vacuum motor 210 is used to dry the cleaned floor. The above is the complete working principle of the present invention.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A floor drying device using hot air from the exhaust of a floor scrubber, characterized in that: include: The system includes a housing (100), a dust collection mechanism (200), a hot air drying mechanism (300), and a wastewater tank mechanism. The dust collection mechanism (200) is placed above the wastewater tank mechanism, and the hot air drying mechanism (300) is on the right side of the wastewater tank mechanism. When the floor scrubber is working, the left side of the floor is cleaned, and the hot air on the right side can dry the wet floor in time, thus completing the entire cleaning process. The vacuuming mechanism (200) is installed inside the outer casing (100). The vacuuming mechanism (200) mainly consists of a vacuuming motor (210), a motor shock-absorbing pad (220), a motor cover (230), and a motor rear cover (240). The outer side of the motor cover (230) is connected to the motor rear cover (240) by a snap-fit. The vacuuming motor (210) is installed inside the motor cover (230) and the motor rear cover (240). The top of the vacuuming motor (210) is equipped with a motor shock-absorbing pad (220). The vacuuming motor (210) rotates at high speed to generate a negative pressure vacuum at the inlet, thereby generating suction to vacuum the dust. The hot air drying floor mechanism (300) is installed outside the vacuuming mechanism (200). The hot air drying floor mechanism (300) includes a heating wire (310), a small volute fan (320), a front cover (350) and a rear cover (360). The exhaust gas from the vacuuming motor (210) is heated by the heating wire (310) through the air blown out by the small volute fan (320). The outer shell (100) is composed of a front cover (350) and a rear cover (360). The front cover (350) and the rear cover (360) are connected, and the inner walls of the front cover (350) and the rear cover (360) are provided with air ducts. Hot air is discharged through the unique air duct structure, thereby drying the damp floor. The clean water tank mechanism consists of a clean water tank body (400), a waste water tank body (410), a suction connection pipe (420), a waste water tank diversion cover (430), a clean water tank pressure block (440), a clean water tank spring (450), a clean water tank inner cover (460), a waste water tank disassembly button (470), a waste water tank disassembly spring (480), and a clean water tank water suction sealing ring (490). A clean water tank body (400) is installed on the inner wall of the front cover (350) of the machine body. A wastewater tank body (410) is installed on the lower side of the clean water tank body (400). A suction pipe (420) is connected to the outer side of the wastewater tank body (410). A wastewater tank removal button (470) is installed at the upper end of the suction pipe (420). A wastewater tank removal spring (480) is installed inside the wastewater tank removal button (470). A wastewater tank diversion cover is installed on the outer side of the clean water tank body (400). 430), a clean water tank pressure block (440) is installed at the bottom of the sewage tank diversion cover (430), a clean water tank spring (450) is installed inside the clean water tank pressure block (440), a clean water tank inner cover (460) is installed on the outside of the clean water tank spring (450), a clean water tank pumping sealing ring (490) is sleeved on the outside of the clean water tank inner cover (460), and the clean water tank body (400) is connected to the sewage tank diversion cover (430) through the clean water tank spring (450) and the clean water tank pressure block (440).

2. The floor drying device using hot air from a floor scrubber exhaust as described in claim 1, characterized in that: The right side of the heating wire (310) is located at the bottom of the rear cover (360) of the machine body, and the exhaust end point (340) of the vacuum motor (210) is located at the top of the exhaust start point (330). The air duct formed by the front cover (350) and the rear cover (360) of the machine body is a Tesla valve structure, which makes the branch airflow and the main flow converge when the airflow is flowing, which plays a role in accelerating the airflow. When the air duct exhausts in the reverse direction, the branch airflow and the main flow come into contact and generate reverse resistance, thereby greatly hindering the airflow.

3. The floor drying device using hot air from a floor scrubber exhaust as described in claim 1, characterized in that: The vacuum motor (210) has a body power connection plate (380) installed on the right side, and a body cover plate (370) is installed on the upper side of the motor rear cover (240). The motor rear cover (240) and the body cover plate (370) are connected by a body cover bottom plate (390).

4. The floor drying device using hot air from a floor scrubber exhaust as described in claim 1, characterized in that: The upper outer periphery of the vacuum motor (210) is fitted with an upper motor sealing ring (250), and the lower outer periphery of the vacuum motor (210) is fitted with a lower motor sealing ring (260).

Citation Information

Patent Citations

  • All-in-one machine combining vacuum cleaner, floor washer and dryer

    CN107313376A

  • Exhaust gas recirculation device for internal combustion engine and internal combustion engine

    JP2023117773A