Workshop oil-stained ground cleaning device

Abstract

This application discloses a workshop oily floor cleaning device, including a cover and a frame connected to the cover. A power supply box for powering other components is installed at the rear end of the cover, and the power supply box has a handle for pushing the cart. A clean water tank is installed at the front end of the frame, and a water pump connected to the clean water tank via a pipeline is installed on one side of the tank. A water spray nozzle connected to the water pump is installed at the bottom of the front end of the frame. A sweeping structure is installed in the middle of the frame. A raised bracket is provided at the rear end of the frame, with a wastewater tank installed at the top of the bracket. A vacuum fan connected to the wastewater tank via a pipeline is installed at the front end of the raised bracket. A filter box and a water pump are installed at the bottom of the raised bracket. This application integrates water spraying, sweeping, water suction, wastewater filtration, and water circulation functions, significantly improving cleaning efficiency and reducing manual labor intensity. Through oil-water separation and a multi-stage filtration structure, it effectively removes oil and impurities from oily wastewater, avoiding secondary pollution.

Description

Technical Field

[0001] This application relates to the field of workshop cleaning, and in particular to a device for cleaning oily workshop floors. Background Technology

[0002] In industrial production processes, workshops such as machining, auto repair, and chemical manufacturing are prone to accumulating large amounts of oil stains on their floors. These oil stains mainly originate from lubricating oil and cutting fluid leaking from equipment, as well as residual emulsified oil and solidified oil films from the production process. These oil stains not only affect the hygiene of the workshop environment but also easily cause people to slip and fall, posing serious safety hazards. Furthermore, oil stains penetrating the ground can corrode the flooring and shorten its service life. Therefore, cleaning oil-stained floors in workshops is of paramount importance.

[0003] Currently, the cleaning methods for oily floors in workshops are mainly divided into two categories: manual cleaning and mechanical cleaning. Manual cleaning usually involves using oil-absorbing mats to absorb floating oil and mopping with chemical cleaning agents. This method is labor-intensive, has extremely low cleaning efficiency, and is difficult to remove stubborn oil stains and hardened oil films from floor crevices. At the same time, the use of chemical cleaning agents increases environmental costs, and their residues may cause secondary pollution. Direct discharge of oily wastewater also does not meet environmental compliance requirements.

[0004] Existing floor scrubbers are floor cleaning devices that use water spray to wet the floor and brushes to clean it. They then use a vacuum fan to create negative pressure in the wastewater tank to recycle the wastewater. For example, high-pressure washers can only use high-pressure water jets to wash away oil stains. Although they can remove some stubborn oil stains, they consume a lot of water and have no wastewater recycling function. Oily wastewater can cause secondary pollution if it flows freely, and they cannot achieve water recycling, which is not in line with the concept of green production. Ordinary floor scrubbers have sweeping and water suction functions, but they lack targeted oil separation and filtration structures. The recycled oily wastewater is difficult to treat, and the cleaning effect on emulsified oil is limited.

[0005] Furthermore, existing cleaning equipment often uses traditional grease traps for wastewater treatment, which can only handle floating oil particles with larger diameters. This makes it difficult to meet current stringent environmental emission requirements, and the equipment is cumbersome to maintain and has high cleaning costs. At the same time, most cleaning equipment does not integrate sweeping, water spraying, water suction, and wastewater treatment, resulting in a complicated cleaning process that requires multiple machines or manual assistance, further reducing cleaning efficiency and increasing the company's labor and equipment investment costs.

[0006] In response to the shortcomings of the existing technologies, the industry urgently needs a workshop oil stain cleaning device that can achieve integrated cleaning, efficient treatment of oily wastewater, water resource recycling, thorough cleaning, and environmental protection and energy saving. This device can reduce the intensity of manual labor, improve cleaning efficiency, solve the problems of oily wastewater discharge pollution and water waste, and meet the complex oil stain cleaning needs of various industrial workshops.

[0007] Therefore, a cleaning device for oily workshop floors is proposed. Summary of the Invention

[0008] This application aims to at least partially solve one of the technical problems in the aforementioned technologies.

[0009] To achieve the above objectives, the first aspect of this application proposes a workshop oily floor cleaning device, including a cover and a frame connected to the cover. A power supply box for powering other components is installed at the rear end of the cover, and a handle for pushing the cart is installed in the power supply box. A clean water tank is installed at the front end of the frame, and a water pump connected to the clean water tank via a pipeline is installed on one side of the clean water tank.

[0010] The bottom front end of the vehicle frame is equipped with a water spray nozzle connected to a water pump.

[0011] A cleaning structure is installed in the middle of the vehicle frame;

[0012] The rear end of the vehicle frame is provided with a protruding bracket, a sewage tank is installed at the top of the protruding bracket, and a vacuum blower connected to the sewage tank through a pipeline is installed at the front end of the protruding bracket.

[0013] A filter box and a water pump are installed at the bottom of the protruding bracket. The filter box is connected to the water pump through a pipeline. The filter box is connected to the sewage tank through a pipeline. The water pump is connected to the clean water tank through a pipeline.

[0014] A water suction squeegee is rotatably connected to the bottom rear end of the vehicle frame, and the wastewater tank is connected to the water suction squeegee via a pipeline.

[0015] This solution integrates components such as a clean water tank, water spray pump, cleaning structure, wastewater tank, filter box, and water pump into the vehicle frame, solving the problem of existing cleaning equipment having scattered functions and requiring multiple devices to work together. It significantly improves the efficiency of cleaning oil stains in the workshop. The squeegee, in conjunction with the wastewater tank and vacuum blower, can quickly recover oily wastewater. The filter box, in conjunction with the water pump and clean water tank, realizes water resource recycling, reduces water consumption for cleaning, and the device can flexibly adapt to the cleaning needs of different areas of the workshop, reducing the intensity of manual labor.

[0016] In addition, the workshop oil stain floor cleaning device proposed in this application may also have the following additional technical features:

[0017] As a further description of the above technical solution:

[0018] The water purification tank is equipped with a lid at the top, and a filter screen is installed at the connection between the lid and the water purification tank. The water purification tank has an integrated water outlet and water inlet on both sides. This design facilitates water addition, maintenance, and internal cleaning, improving the ease of equipment maintenance. The filter screen at the connection between the lid and the water purification tank can filter impurities and particles in the water, preventing impurities from entering the water pump and spray nozzle, preventing pipe blockage and equipment wear, and extending the service life of the water pump and spray nozzle. The integrated water outlet and water inlet have a stable structure and good sealing performance, reducing the risk of pipe connection leakage, while simplifying the pipe layout and improving the overall compactness of the equipment.

[0019] As a further description of the above technical solution:

[0020] The outlet is connected to a water spray pump via a pipeline, and the inlet is connected to a water pump via a pipeline.

[0021] As a further description of the above technical solution:

[0022] The wastewater tank is an oil-water separator. This solution can directly perform preliminary oil-water separation on the recovered oily wastewater. The separated oil is easy to collect and treat centrally, and the wastewater can enter the subsequent filtration stage. This solves the problem that existing equipment is difficult to treat wastewater and easily causes environmental pollution, and reduces the cost of treating oily wastewater.

[0023] As a further description of the above technical solution:

[0024] The wastewater tank includes a primary filter box, baffle one, a secondary filter box, baffle two, baffle three, a float support frame, and a tertiary filter box;

[0025] The bottom of the primary filter box is equipped with a sewage inlet pipe, which is connected to a squeegee via a pipeline.

[0026] The primary filter box and the secondary filter box are separated by a baffle plate, and the baffle plate is equipped with a filter. The secondary filter box and the tertiary filter box are separated by a baffle plate, and the secondary filter box is equipped with a baffle plate. The sewage tank has a coarse filtrate outlet connected to the filter box through a pipeline on one side. The coarse filtrate outlet is equipped with a float support frame inside.

[0027] The bottom of the sewage tank is provided with an oily filter residue discharge outlet one and an oily filter residue discharge outlet two. The oily filter residue discharge outlet one is connected to the secondary filter box, and the oily filter residue discharge outlet two is connected to the primary filter box.

[0028] This solution utilizes a multi-stage filtration structure, combined with baffles and filters, to achieve graded filtration of oily wastewater. It can gradually remove large particulate impurities, floating oil, and emulsified oil from wastewater, significantly improving the oil removal rate. The wastewater inlet pipe is connected to a suction squeegee to ensure that the recovered wastewater is accurately introduced into the filtration structure, preventing wastewater stagnation. The float support frame prevents wastewater overflow and ensures the stability of equipment operation. Two oil and filter residue discharge outlets are provided to clean oil and filter residue at different filtration stages separately, facilitating maintenance.

[0029] As a further description of the above technical solution:

[0030] The sewage tank includes a sewage tank cover, an adapter, a float valve, a rubber sealing ring, an air extraction port, a sewage tank cover, a sewage guide pipe, a sewage tank inlet connection, a ball valve, and a float.

[0031] The top of the sewage tank is equipped with a sewage tank cover plate, the sewage tank cover plate is equipped with a sewage tank lid, the sewage tank lid is connected to an air extraction port, the air extraction port is connected to a vacuum blower through a pipeline, and a converter joint is provided on one side of the sewage tank, with a float valve and a rubber sealing ring provided inside the converter joint.

[0032] The bottom of the sewage tank is equipped with a sewage tank inlet connection port and two ball valves. One end of the sewage tank inlet connection port is connected to the sewage tank sewage guide pipe, and the sewage tank sewage guide pipe extends into the sewage tank.

[0033] This solution achieves double sealing to prevent sewage odor leakage and improve the workshop working environment. The air extraction port is connected to a vacuum fan, which can quickly create negative pressure in the sewage tank, improving the sewage recovery efficiency of the squeegee. The design of the float valve and rubber sealing ring can automatically control the water level in the sewage tank, avoiding damage to the equipment due to excessive water level, while also enhancing sealing performance. The sewage guide pipe of the sewage tank extends into the interior, which can guide the sewage to flow in smoothly, avoiding sewage impact on the filter structure and ensuring the filtration effect. The ball valve facilitates the control of oil and sewage discharge, improving the ease of operation.

[0034] As a further description of the above technical solution:

[0035] The filter box includes a filter box inlet, a filter box cover, a stainless steel wire mesh, coconut shell activated carbon, stainless steel powder metal sintered filter discs, and a filtrate outlet.

[0036] The filter box cover has a filter box inlet, and the filter box has a stainless steel wire mesh facing the filter box inlet. Coconut shell activated carbon is placed below the stainless steel wire mesh, and stainless steel powder metal sintered filter plates are placed below the coconut shell activated carbon. A filtrate outlet is installed at the bottom of the filter box.

[0037] This solution employs a multi-layer filtration structure. The stainless steel wire mesh filters out large particles of impurities, while the coconut shell activated carbon adsorbs fine oil, odors, and organic matter in the wastewater. The stainless steel powder metal sintered filter further filters out fine impurities and emulsified oil, achieving deep purification of wastewater and ensuring that the water quality in the circulating water tank meets the standards, thus avoiding secondary pollution.

[0038] As a further description of the above technical solution:

[0039] The filter box inlet is connected to the sewage tank via a pipeline, and the filtrate outlet is connected to the water pump via a pipeline.

[0040] As a further description of the above technical solution:

[0041] The cleaning structure includes a roller brush motor and a roller brush. The output end of the roller brush motor is connected to the roller brush. This solution uses a roller brush motor to drive the roller brush, which provides sufficient power and can efficiently remove stubborn oil stains and solidified oil films from the ground. It solves the problem of incomplete cleaning by manual sweeping and ordinary sweeping structures. The motor is directly connected to the roller brush, which has high transmission efficiency and low energy consumption. At the same time, it is easy to control the cleaning speed and adapt to the cleaning needs of different levels of oil stains.

[0042] As a further description of the above technical solution:

[0043] The frame is equipped with a brush cover for covering the roller brush. This solution can prevent oil from splashing during the cleaning process, avoid contaminating workshop equipment and the environment, and protect the roller brush from external impact damage, thus extending the service life of the roller brush. The brush cover can also collect oil, making it easier for the water spraying and suction processes to work together and improve the overall cleaning effect.

[0044] Advantages of this invention:

[0045] According to the workshop oily floor cleaning device of this application, the device realizes integrated cleaning of workshop oily floors, integrating water spraying, sweeping, water suction, sewage filtration and water circulation functions, which greatly improves cleaning efficiency and reduces manual labor intensity.

[0046] Through oil-water separation and multi-stage filtration, oil and impurities in oily wastewater are effectively removed, avoiding secondary pollution and meeting environmental compliance requirements.

[0047] Water cycle design enables water resources to be reused, saving cleaning costs;

[0048] Each component has a reasonable structural design, good sealing performance, convenient maintenance, stable operation, and is suitable for cleaning oil stains in various workshops. At the same time, it extends the service life of the equipment and combines practicality and economy.

[0049] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0050] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0051] Figure 1 This is a schematic diagram of the external structure of a workshop oily floor cleaning device according to an embodiment of this application;

[0052] Figure 2 This is a schematic diagram of the internal structure of a workshop oily floor cleaning device according to an embodiment of this application;

[0053] Figure 3 This is a schematic diagram of the bottom structure of the chassis of a workshop oily floor cleaning device according to an embodiment of this application;

[0054] Figure 4 This is a schematic diagram of the internal structure of the clean water tank of a workshop oily floor cleaning device according to an embodiment of this application;

[0055] Figure 5 This is a schematic diagram of the internal structure of the wastewater tank of the workshop oily floor cleaning device according to Embodiment 1 of this application;

[0056] Figure 6 This is a schematic diagram of the internal structure of the wastewater tank of the workshop oily floor cleaning device according to Embodiment 2 of this application;

[0057] Figure 7 This is a schematic diagram illustrating the impurity filtration principle of a workshop oily floor cleaning device according to an embodiment of this application;

[0058] Figure 8 This is a schematic diagram of the internal structure of the filter box of a workshop oily floor cleaning device according to an embodiment of this application. Detailed Implementation

[0059] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0060] The workshop oily floor cleaning device of this application embodiment will be described below with reference to the accompanying drawings.

[0061] like Figure 1-8As shown, the workshop oily floor cleaning device of Embodiment 1 of this application may include a cover 1 and a frame 4 connected to the cover 1. A power supply box 3 for powering other components is installed at the rear end of the cover 1. The power supply box 3 is equipped with a handle 2 for pushing the cart. A clean water tank 6 is installed at the front end of the frame 4. A water pump 5 connected to the clean water tank 6 via a pipeline is installed on one side of the clean water tank 6. A water nozzle 41 connected to the water pump 5 is installed at the bottom front end of the frame 4. A cleaning structure is installed in the middle of the frame 4. A protruding bracket is provided at the rear end of the frame 4. A sewage tank 7 is installed at the top of the protruding bracket. A vacuum fan 8 connected to the sewage tank 7 via a pipeline is installed at the front end of the protruding bracket. A filter box 9 and a water pump 10 are installed at the bottom end of the protruding bracket. The filter box 9 is connected to the water pump 10 via a pipeline, and the filter box 9 is connected to the sewage tank 7 via a pipeline. A water pump 10 is connected to a clean water tank 6 via a pipeline. A squeegee 42, which is rotatably connected to the bottom of the rear end of the frame 4, is installed thereon. A wastewater tank 7 is connected to the squeegee 42 via a pipeline. In this embodiment, the water pump is a diaphragm pump. The clean water tank 6 stores cleaning water. The water pump 5 draws water from the clean water tank 6 through a pipeline and sprays it onto the oily ground through the spray nozzle 41 at the bottom of the front end of the frame 4 to wet and dilute the oil. The cleaning structure in the middle cleans the wetted oily ground, removing stubborn oil and impurities. The vacuum fan 8 at the rear works to create negative pressure in the wastewater tank 7. The oily wastewater on the ground is sucked into the wastewater tank 7 through the squeegee 42. The wastewater in the wastewater tank 7 enters the filter box 9 through a pipeline for filtration and purification. Then, the water pump 10 pumps it back to the clean water tank 6 for recycling, forming a complete cleaning, recycling, and circulation chain.

[0062] like Figure 1-4 As shown:

[0063] A cover 63 is provided at the top of the water purification tank 6, and a filter screen 64 is installed at the connection between the cover 63 and the water purification tank 6. An integrally formed water outlet 61 and water inlet 62 are respectively provided on both sides of the water purification tank 6. In this embodiment, when the cover 63 is opened and purified water is added, the filter screen 64, which is placed at the opening of the water purification tank 6, intercepts any visible solid particles that may be present in the tap water. Water then enters the tank until a suitable amount is reached, and water is supplied by the spray section from the water outlet 61. The collected and filtered water flows into the water purification tank through the water inlet 62. The water outlet 61 is connected to the water purification tank via a pipe... The system connects to the water spray pump 5 to ensure that the clean water in the water purification tank 6 can be accurately delivered to the water spray pump 5. After being pressurized by the water spray pump 5, the water is sprayed out through the spray nozzle 41. The water inlet 62 is connected to the water pump 10 through a pipeline. The water inlet 62 is connected to the water pump 10 through a pipeline so that the water purified by the filter box 9 can be pumped back to the water purification tank 6 through the water pump 10, forming a closed-loop water circulation of water purification tank 6-water spray pump 5-spray nozzle 41-squeegee 42-sewage tank 7-filter box 9-water pump 10-water purification tank 6, ensuring smooth water resource circulation.

[0064] like Figure 2 , 5 As shown:

[0065] The wastewater tank 7 is an oil-water separator, comprising a primary filter box 71, a first baffle 72, a secondary filter box 73, a second baffle 76, a third baffle 77, a float support frame 78, and a tertiary filter box 79. A wastewater inlet pipe 710 is installed at the bottom of the primary filter box 71, which is connected to a suction squeegee 42 via a pipeline. The primary filter box 71 and the secondary filter box 73 are separated by the first baffle 72, which is equipped with a filter 711. The secondary filter box 73 and the tertiary filter box 79 are also connected... The secondary filter box 73 is separated by baffle 3 77, and baffle 2 76 is provided inside the secondary filter box 73. A coarse filtrate outlet 712 is provided on one side of the sewage tank 7 and connected to the filter box 9 through a pipeline. A float support frame 78 is provided inside the coarse filtrate outlet 712. At the bottom of the sewage tank 7, there are two oil sludge discharge outlets 74 and 75. The oil sludge discharge outlet 74 is connected to the secondary filter box 73, and the oil sludge discharge outlet 75 is connected to the primary filter box 71. In this embodiment, the sewage flows through the sewage inlet pipe 71. The wastewater is drawn into the primary filter box 71 and blocked by baffle 1 72. When the wastewater accumulates to a certain position and reaches the two circular filter screens 711, large solid particles are intercepted by the filter 711 and placed to the right of baffle 1 72. The liquid then enters the secondary filter box 73, where the filtrate is blocked by baffle 3 77. The liquid slowly accumulates to baffle 2 76 and continues to rise. Due to the properties of water, the water level on both sides of baffle 2 76 is the same. At this time, the oil, due to its lower density than water, floats on the surface and cannot pass through the baffle. The wastewater passes under plate 2 76. At this point, the small amount of floating oil and dispersed oil contained in the wastewater is intercepted by plate 2 76 in the secondary filter box 73. The liquid continues to rise until it overflows plate 3 77 and then passes through another filter before flowing out through the coarse filter filtrate outlet 712. The float on the float support frame 78 can monitor the water level and prevent wastewater from overflowing. Oil sludge discharge outlet 1 74 and oil sludge discharge outlet 2 75 correspond to the secondary filter box 73 and the primary filter box 71, respectively, and are used to discharge the oil and filter sludge separated at each stage to ensure the normal operation of the filtration structure.

[0066] like Figure 2 , 5 As shown in 7 and 8:

[0067] Filter box 9 includes a filter box inlet 91, a filter box cover 92, a stainless steel wire mesh 93, coconut shell activated carbon 94, stainless steel powder metal sintered filter sheet 95, and a filtrate outlet 96. The filter box cover 92 has a filter box inlet 91. Inside the filter box 9, there is a stainless steel wire mesh 93 facing the filter box inlet 91. Below the stainless steel wire mesh 93 is the coconut shell activated carbon 94, and below the coconut shell activated carbon 94 is the stainless steel powder metal sintered filter sheet 95. The filtrate outlet 96 is installed at the bottom of the filter box 9. In this embodiment, a suitable stainless steel powder metal sintered filter sheet 95 is added to the bottom of the filter box 9 as a third layer of filtration to remove solid particles with a size of 5~80μm. A suitable amount of coconut shell activated carbon 94 is added to the powder metal sintered filter plate 95 to filter out discoloration and odor, forming a second layer of filtration. Then, a stainless steel wire mesh 93 is added to trap solid particles with a size of 80μm or larger. Appropriately sized rubber rings or gaskets are added between each layer of filter media to separate the media edges, leaving gaps between different filter media to trap the trapped solid particles. The mesh also fits against the inner wall of the filter box 9 to trap any coarse filtrate that might flow down the edges. The filter box inlet 91 is connected to the adapter 702 via a pipe. Liquid that has undergone coarse filtration through the wastewater tank 7 flows into the filter box inlet 91 of the filter box 9 from the adapter 702 for multi-stage precision filtration. Oily wastewater is then filtered... After entering the filter box 9 through inlet 91, the wastewater passes through a series of filters: stainless steel wire mesh 93, coconut shell activated carbon 94, and stainless steel powder metal sintered filter plates 95. The stainless steel wire mesh 93 first filters out large particles of 80μm and above. Then, the coconut shell activated carbon 94 uses its adsorption properties to remove fine oil, odors, and organic matter from the wastewater. Finally, the stainless steel powder metal sintered filter plates 95 filter out fine impurities of 5-80μm and residual emulsified oil, completing the deep purification of the wastewater. The filtered water is discharged through filtrate outlet 96. The filter box cover 92 can be opened for easy replacement of the filter material, ensuring filtration efficiency. The filter box inlet 91 is connected to the wastewater tank 7 via a pipeline, allowing the wastewater to pass through the tank for initial oil-water separation. After purification, the wastewater flows into the filter box 9 through the adapter 702 for deep purification. The filtrate outlet 96 is connected to the diaphragm pump (water pump 10). The diaphragm bulges to the right, creating a negative pressure inside the pump body, causing the discharge valve to be sucked in and closed. At the same time, the suction valve of the diaphragm pump is also sucked in and opened under the negative pressure, and is connected to the filtrate outlet 96. Therefore, a negative pressure is also created inside the filter box 9, accelerating the filtration speed of the coarse filtrate flowing in from the filter box inlet 91. The purified water after filtration is connected to the water pump 10 through the pipeline via the filtrate outlet 96. The water pump 10 works to pump the purified water back to the clean water tank 6, realizing the recycling of water resources, ensuring that the quality of the recycled water meets the standards, and avoiding secondary pollution of the ground.

[0068] like Figure 2-3 As shown:

[0069] The cleaning structure includes a roller brush motor 43 and a roller brush 44. The output end of the roller brush motor 43 is connected to the roller brush 44, and the frame 4 is equipped with a brush cover for covering the roller brush 44. In this embodiment, after the roller brush motor 43 is powered on, it outputs power to directly drive the roller brush 44 to rotate. The rotating roller brush 44 contacts the ground and peels off stubborn oil stains, solidified oil films and impurities from the ground through friction, thereby achieving mechanical cleaning of the oily ground. When the roller brush 44 rotates and cleans, the brush cover prevents oil stains and impurities from splashing, avoiding pollution of workshop equipment and the environment.

[0070] Example 2 differs from Example 1 in that, as Figure 6 As shown:

[0071] The sewage tank 7 includes a sewage tank cover plate 701, an adapter joint 702, a float valve 703, a rubber sealing ring 704, an air extraction port 705, a sewage tank cover 706, a sewage guide pipe 707, a sewage tank inlet connection port 708, a ball valve 709, and a float 710. The sewage tank cover plate 701 is installed at the top of the sewage tank 7, and the sewage tank cover 706 is installed on the sewage tank cover plate 701. The sewage tank cover 706 is connected to the air extraction port 705, which is connected to a vacuum blower 8 via a pipeline. An adapter joint 702 is located on one side of the sewage tank 7, and a float valve 703 and a rubber sealing ring 704 are located inside the adapter joint 702. The sewage tank inlet connection port 708 and two ball valves 709 are installed at the bottom of the sewage tank 7. The sewage tank inlet is connected to... One end of interface 708 is connected to the sewage guide pipe 707 of the sewage tank, which extends into the interior of the sewage tank 7. In this embodiment, the sewage tank cover plate 701, the sewage tank cover 706, the two ball valves 709, the adapter 702, and the rubber sealing ring 704 form a preliminary seal for the sewage tank 7. The sewage tank cover plate 701 and the sewage tank cover 706 at the top of the sewage tank 7 provide a double seal to prevent sewage odor leakage and sewage overflow. Since the interior of the sewage tank 7 needs to be sealed, the sewage tank cover plate 701 and the outer shell of the sewage tank 7 must be completely sealed. Welding and glue sealing methods can achieve this purpose. At this time, the internal parts of the sewage tank 7 are difficult to replace, so other electrical components are discarded. In this control method, the air extraction port 705 is connected to the vacuum fan 8. When the vacuum fan 8 operates, it extracts air from the inside of the sewage tank 7, creating a negative pressure inside the sewage tank 7. The only connection between the entire tank body and the outside air is at the sewage tank inlet connection port 708. Due to the negative pressure inside the sewage tank 7, the sewage that has accumulated in the middle of the suction squeegee 42 enters through the sewage tank inlet pipe 710, which is connected to the suction squeegee 42 and the sewage tank inlet connection port 708, under the influence of air pressure. The sewage is then guided through the sewage tank guide pipe 707. The advantage of this design is that the outlet height of the sewage tank guide pipe 707 is higher than that of the filter 711, so the sewage rises after entering the primary filter box 71 without overflowing the sewage tank guide pipe 707. The design of the 07 pipe opening ensures the stability of the sewage suction effect. Furthermore, the staggered design of the air extraction port 705 at the connection between the sewage tank guide pipe 707 and the vacuum blower 8 prevents liquid from entering the vacuum blower 8 and causing operational difficulties. Both ball valves 709 can be opened; after connecting the plastic hose, the valve lever can be opened to discharge the filtered liquid and residue. The ball valves 709 and 703, which open and close freely according to the rise and fall of the water level, allow the sealed stainless steel hollow float to rise due to gravity, as its weight is less than that of water of the same volume. The upward force of the float then acts on the float connecting rod.The float connecting rod drives the ball valve 709 wrench to rotate counterclockwise. At this time, ball valve 709 slowly opens, and the coarse filtrate flows into the precision filtration device under the combined action of gravity and the diaphragm pump. Due to the design of the float connecting rod, the float only activates when the water level is above the entire inlet of ball valve 709. At this time, the inlet of ball valve 709 is below the liquid surface, and the last bit of floating oil on the water surface is trapped in the wastewater tank 7 in this way. Simultaneously, the float only activates when the water level is above the entire inlet of ball valve 709. At this time, the inlet of ball valve 709 is below the liquid level, and the negative pressure created by the vacuum blower 8 inside the tank still only has one inlet in contact with the atmosphere, preventing pressure buildup due to two inlets. Contact with the atmosphere reduces the suction at the sewage tank inlet connection 708, making sewage suction difficult. Additionally, a connector 702 is located on one side of the sewage tank 7, with a float valve 703 and a rubber sealing ring 704 inside. The bottom of the sewage tank 7 has an inlet connection 708 and two ball valves 709. One end of the inlet connection 708 connects to the sewage guide pipe 707, which extends into the sewage tank 7. The float valve 703 automatically starts and stops according to the water level in the sewage tank 7 to control the water level. The rubber sealing ring 704 enhances the sealing performance. The ball valves 709 control the opening and closing of the oil residue discharge outlet for convenient sewage discharge and maintenance.

[0072] In summary, according to the workshop oil stain floor cleaning device of the present application embodiment, the rear end of the cover 1 is equipped with a power box 3, which provides power to other components of the device. The power box 3 uses a 6-QW-120 type lead-acid battery. The power box 3 is equipped with a handle 2, which makes it easy for the operator to push the frame 4 to move, and adapts to the cleaning needs of different areas of the workshop.

[0073] Check the battery power in the power box 3 to ensure sufficient power. If the power is insufficient, charge the battery in time. Open the cover 63 at the top of the water tank 6 and pour clean water into the water tank 6. During the water filling process, the filter screen 64 filters out large particles of impurities in the water to avoid clogging the pipes and components.

[0074] The operator holds the handle 2 on the power supply box 3, pushes the device to the oily floor area of ​​the workshop to be cleaned, turns on the power supply switch of the power supply box 3, and the battery begins to supply power to the water spray pump 5, roller brush motor 43, vacuum fan 8, water pump 10 and other electrical components.

[0075] Start the water pump 5. The water pump 5 draws clean water from the clean water tank 6 through the pipeline and sprays it evenly onto the oily ground through the water nozzle 41 at the bottom front of the frame 4 to wet and dilute the oil on the ground. Simultaneously start the roller brush motor 43. The roller brush motor 43 drives the roller brush 44 to rotate. The rotating roller brush 44 contacts the ground and peels off stubborn oil stains, solidified oil film and large particles of impurities. The brush cover prevents oil stains and impurities from splashing and gathers the pollutants. Start the vacuum blower 8 (rated voltage 24V, rated power 500w). The vacuum blower 8 creates a negative pressure in the sewage tank 7. Under the action of negative pressure, the oily sewage after the ground is wetted and swept gathers in the middle of the squeegee 42 and enters through the sewage inlet pipe 710 connected to the squeegee 42 and the sewage tank inlet connection port 708. It is then guided into the sewage tank 7 through the sewage guide pipe 707.

[0076] After oily wastewater enters the wastewater tank 7, it undergoes multi-stage filtration through primary filter box 71, secondary filter box 73, and tertiary filter box 79. Large particles of impurities are intercepted by filter 711, and floating oil is intercepted by baffle 76. The treated coarse filtrate flows into the filter box inlet 91 of filter box 9 through coarse filtrate outlet 712 and adapter 702. In filter box 9, the coarse filtrate passes through stainless steel wire mesh 93 (intercepting solid particles of 80μm and above), coconut shell activated carbon 94 (filtering out discoloration and odor), and stainless steel powder metal sintered filter sheet 95 (filtering out solid particles of 5~80μm) in a series of precision filtration stages. The water pump 10 is started, and at the same time, the diaphragm pump works to create negative pressure in filter box 9, accelerating the filtration speed. The filtered purified water is pumped back to the clean water tank 6 through filtrate outlet 96 and water pump 10, realizing the recycling of water resources.

[0077] The operator holds handle 2 and slowly pushes the frame 4 to move the device at a uniform speed along the area to be cleaned, ensuring that the water spraying, sweeping and water suction processes are carried out in a coordinated manner, without any dead corners in the cleaning process; during the cleaning process, if there is a lot of oil and filter residue accumulated in the sewage tank 7, a plastic hose can be connected and the ball valve 709 can be opened to discharge the filtered oil and filter residue. The float valve 703 will automatically start and stop according to the water level in the sewage tank 7 to prevent the water level from overflowing due to excessively high water level and to ensure stable operation of the equipment.

[0078] After cleaning, first turn off the water spray pump 5, roller brush motor 43, vacuum blower 8, and water pump 10, then turn off the power switch of the power supply box 3; open the cover 63 of the clean water tank 6, clean the impurities on the filter screen 64, drain the remaining clean water in the clean water tank 6 and rinse it, open the oil sludge discharge outlet 1 74 and the oil sludge discharge outlet 2 75 of the sewage tank 7, thoroughly drain the residual oil and filter residue in the tank, clean the internal filter structure of the sewage tank 7, open the filter box cover 92, check and replace the stainless steel wire mesh 93, coconut shell activated carbon 94, stainless steel powder metal sintered filter 95 and each layer of rubber rings / gaskets, push the device to the designated storage position, and if the battery in the power supply box 3 is low on power, connect the charger to charge it in time.

[0079] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0081] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A workshop oil stain floor cleaning device, comprising a cover (1) and a frame (4) connected to the cover (1), wherein a power supply box (3) for powering other components is installed at the rear end of the cover (1), and the power supply box (3) is equipped with a handle (2) for pushing the cart, characterized in that: A water tank (6) is installed at the front end of the frame (4), and a water pump (5) connected to the water tank (6) via a pipeline is installed on one side of the water tank (6). The bottom front end of the vehicle frame (4) is equipped with a water spray nozzle (41) connected to the water spray pump (5). A cleaning structure is installed in the middle of the frame (4); The rear end of the frame (4) is provided with a protruding bracket, the top of the protruding bracket is equipped with a sewage tank (7), and the front end of the protruding bracket is equipped with a vacuum blower (8) connected to the sewage tank (7) through a pipeline. The bottom of the protruding bracket is equipped with a filter box (9) and a water pump (10). The filter box (9) is connected to the water pump (10) through a pipeline. The filter box (9) is connected to the sewage tank (7) through a pipeline. The water pump (10) is connected to the clean water tank (6) through a pipeline. The bottom rear end of the frame (4) is equipped with a squeegee (42) that is rotatably connected to it, and the sewage tank (7) is connected to the squeegee (42) through a pipe.

2. The workshop oil stain floor cleaning device according to claim 1, characterized in that, The water purification tank (6) has a lid (63) at the top, and a filter screen (64) is installed at the connection between the lid (63) and the water purification tank (6). The water purification tank (6) has an integrally formed outlet (61) and inlet (62) on both sides.

3. The workshop oil stain floor cleaning device according to claim 2, characterized in that, The outlet (61) is connected to the water pump (5) via a pipeline, and the inlet (62) is connected to the water pump (10) via a pipeline.

4. The workshop oil stain floor cleaning device according to claim 1, characterized in that, The wastewater tank (7) is an oil-water separator.

5. The workshop oil stain floor cleaning device according to claim 4, characterized in that, The wastewater tank (7) includes a primary filter box (71), a first baffle (72), a secondary filter box (73), a second baffle (76), a third baffle (77), a float support frame (78), and a tertiary filter box (79). The bottom of the primary filter box (71) is equipped with a sewage inlet pipe (710), and the sewage inlet pipe (710) is connected to the squeegee (42) through a pipeline. The primary filter box (71) and the secondary filter box (73) are separated by a baffle (72), and a filter screen (711) is installed on the baffle (72). The secondary filter box (73) and the tertiary filter box (79) are separated by a baffle (77), and a baffle (76) is provided inside the secondary filter box (73). A coarse filtrate outlet (712) is provided on one side of the sewage tank (7) and connected to the filter box (9) through a pipeline. A float support frame (78) is provided inside the coarse filtrate outlet (712). The bottom of the sewage tank (7) is provided with an oily filter residue discharge outlet one (74) and an oily filter residue discharge outlet two (75). The oily filter residue discharge outlet one (74) is connected to the secondary filter box (73), and the oily filter residue discharge outlet two (75) is connected to the primary filter box (71).

6. The workshop oil stain floor cleaning device according to claim 5, characterized in that, The sewage tank (7) includes a sewage tank cover plate (701), a converter joint (702), a float valve (703), a rubber sealing ring (704), an air extraction port (705), a sewage tank cover (706), a sewage tank sewage guide pipe (707), a sewage tank inlet connection port (708), a ball valve (709), and a float (710). The sewage tank (7) is equipped with a sewage tank cover plate (701) at the top. The sewage tank cover plate (701) is equipped with a sewage tank cover (706). The sewage tank cover (706) is connected to an air extraction port (705). The air extraction port (705) is connected to a vacuum blower (8) through a pipeline. The sewage tank (7) is provided with an adapter (702) on one side. The adapter (702) is provided with a float valve (703) and a rubber sealing ring (704) inside. The bottom of the sewage tank (7) is equipped with a sewage tank inlet connection port (708) and two ball valves (709). One end of the sewage tank inlet connection port (708) is connected to the sewage tank sewage guide pipe (707), and the sewage tank sewage guide pipe (707) extends into the sewage tank (7).

7. The workshop oil stain floor cleaning device according to claim 1, characterized in that, The filter box (9) includes a filter box inlet (91), a filter box cover (92), a stainless steel wire mesh (93), coconut shell activated carbon (94), a stainless steel powder metal sintered filter (95), and a filtrate outlet (96). The filter box cover (92) has a filter box inlet (91). The filter box (9) has a stainless steel wire mesh (93) facing the filter box inlet (91). Coconut shell activated carbon (94) is provided below the stainless steel wire mesh (93). Stainless steel powder metal sintered filter sheet (95) is provided below the coconut shell activated carbon (94). The filter box (9) has a filtrate outlet (96) installed at the bottom.

8. The workshop oil stain floor cleaning device according to claim 7, characterized in that, The filter box inlet (91) is connected to the sewage tank (7) via a pipeline, and the filtrate outlet (96) is connected to the water pump (10) via a pipeline.

9. The workshop oil stain floor cleaning device according to claim 1, characterized in that, The cleaning structure includes a roller brush motor (43) and a roller brush (44), with the output end of the roller brush motor (43) connected to the roller brush (44).

10. The workshop oil stain floor cleaning device according to claim 9, characterized in that, The frame (4) is equipped with a brush cover for covering the roller brush (44).

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