Multifunctional cleaning work head and cleaning system

Abstract

The invention relates to the field of cleaning equipment, in particular to a multifunctional cleaning working head and a cleaning system.The multifunctional cleaning working head comprises a quick-release connector, a working head body and a flexible scrubbing and water absorbing mechanism, and the working head body comprises a shell cover and a water absorbing base which are fixedly connected; one end of the quick-release connector is detachably connected with the shell cover, and the other end of the quick-release connector is used for being communicated with a water supply and vacuum back-suction mechanism. The flexible scrubbing and water absorbing mechanism is arranged on the water absorbing base and used for making contact with the surface of a cleaned object to achieve the scrubbing effect through reciprocating motion, and cleaning liquid is temporarily stored through the structure of the flexible scrubbing and water absorbing mechanism. The multifunctional cleaning working head and the cleaning system have the function of repeatedly recycling the cleaning liquid; the flexible scrubbing and water absorption mechanism is particularly suitable for vehicle cleaning of underground parking lots of urban residential districts, cleaning of kitchen range hoods, cleaning of dirty excrement of long-term bedridden patients and the like, and the flexible scrubbing and water absorption mechanism is suitable for water supply of the flexible scrubbing and water absorption mechanism, flexible scrubbing of the vacuum back-suction mechanism and flexible scrubbing and water absorption of the water absorption mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cleaning equipment, in particular to a multifunctional cleaning work head and a cleaning system. BACKGROUND

[0002] In today's society, mechanical manufacturing and cleaning technology is undergoing continuous and rapid development. With the continuous improvement of the cleaning requirements of various industries, the application range of cleaning equipment is increasingly wide, and has penetrated into many fields such as industrial equipment cleaning, household cleaning, and automobile beauty care. The functional requirements of cleaning equipment in different fields show a trend of diversification, such as the need for high-strength and large-scale cleaning capacity for industrial equipment cleaning, the emphasis on the convenience and easy operation of the equipment for household cleaning, and the high requirements for the fineness of cleaning and the protection of the vehicle body for automobile beauty care.

[0003] The related technology discloses a sewage recycling type car washing tool which is composed of a handle, an upper cover, a storage battery, an electric control board, screws, a sealing ring, a ball valve I, a side plate, a filter screen, a partition plate 0, a partition plate I, a water suction pump, an electric motor I, a water outlet pump, a filter screen I, a ball valve I, wheels, a main box body, a water suction pipe, a water outlet pipe 0, a shower head, an electric motor III, a suction port, a nozzle, a brush support and brushes. The main box body is provided with the side plate on the left side, is fixed by the screws and is provided with the sealing ring to prevent water leakage. The ball valves are arranged on the upper and lower sides of the side plate to add clean water and release sewage. The sewage tank, the clean water tank and cavities for arranging the electric motor, the water outlet pump and the water suction pump are formed in the main box body by the partition plates and the filter screen, so that the sewage circulating box body is formed, and part of the filter screen can be disassembled and cleaned. The water outlet pump is connected with the clean water tank and the shower head to form a high-pressure water channel. The shower head is provided with the suction port and is connected with the water suction pump through the water suction pipe. The water suction pump is connected with the sewage tank to form a sewage suction channel. The electric motor is embedded in the shower head, the output shaft of the electric motor is in interference fit with the brush support, and the twenty brush rotating around the circumference at equal intervals and fixed on the brush support are driven to rotate.

[0004] Although the above multifunctional high-pressure washer meets the cleaning needs to some extent, there are still some obvious defects in actual use. In terms of structure, the design requires a high gap between the shower head and the object being cleaned. Too large a gap will result in insufficient negative pressure and loss of suction, and too small a gap will limit air flow rate, producing a similar blocked effect. In short, it is impossible to achieve sewage recovery. In terms of operation, due to its complex structure, reliability is greatly compromised, and the weight is huge, making it very difficult for users to use. The operation steps are also relatively complicated, and users need to spend a lot of time and effort to familiarize and master the operation method of the equipment, reducing work efficiency. In addition, when maintaining and replacing the working head, due to the complex structure, the disassembly and installation process is difficult, and professional personnel are needed to operate, increasing the maintenance cost and time cost, which is not conducive to the rapid maintenance and flexible use of the equipment. At the same time, the high-pressure washer in the related art uses a booster pump to spray and clean; it consumes a lot of tap water, and water splashes and sewage flows during use. In urban residential areas with high parking density, especially underground parking lots where water is difficult to obtain and sewage cannot be discharged, the high-pressure washer cannot be used at all. SUMMARY

[0005] In order to overcome the various problems of the existing multifunctional high-pressure washer, the present application provides a multifunctional cleaning working head and cleaning system.

[0006] The multifunctional cleaning working head and cleaning system provided by the present application adopt the following technical solutions: A multifunctional cleaning working head, comprising a quick-release connector, a working head body, and a flexible scrubbing and water absorbing mechanism, the working head body comprising a fixedly connected shell cover and a water absorbing seat; one end of the quick-release connector is detachably connected with the shell cover, and the other end of the quick-release connector is used to connect a water supply and vacuum back-suction mechanism; the flexible scrubbing and water absorbing mechanism is arranged on the water absorbing seat, and is used to clean equipment and store cleaning liquid.

[0007] By adopting the technical scheme, the quick release joint is used to realize detachable connection with the shell cover and communication with the water supply and vacuum back-suction mechanism, so that the installation and dismounting of the working head are more convenient and fast, the user does not need to spend too much time and effort to familiarize with the operation, and the professional personnel is not needed to complete the maintenance and replacement of the working head, the working efficiency is greatly improved, the maintenance cost and time cost are reduced, the requirements of operation convenience and maintenance timeliness are met, meanwhile, the flexible scrubbing and water absorbing mechanism can also be used for cleaning equipment and storing cleaning liquid, the flexible scrubbing and water absorbing mechanism is used for contacting the surface of the object to be cleaned to realize the scrubbing effect through the reciprocating action of the hand, and temporarily stores the cleaning liquid by using the material and structural characteristics. The multifunctional cleaning working head has the functions of repeated use of cleaning liquid, convenient operation, water saving, environmental protection, good cleaning effect and the like, and is especially suitable for various cleaning scenes such as vehicle cleaning of urban residential underground parking lots, cleaning of kitchen exhaust hoods and cleaning of dirty excrement of long-term bedridden patients, and has the advantages of simple overall structure and low manufacturing cost, and further improves the functionality and practicability of the device.

[0008] Optionally, the working head body is an integral structure, and the shell cover and the water absorbing seat are integrally formed; or the working head body is a split structure, and the shell cover and the water absorbing seat are detachably connected.

[0009] By adopting the technical scheme, the working head body is provided as an integral structure or a split structure, which can flexibly adapt to different use scenes and requirements. The working head body with the integral structure has the characteristics of compact structure and high stability, and has the advantages of simple structure and low manufacturing cost, and is suitable for scenes with high requirements on the integrity and durability of the equipment; the split structure is convenient for partial replacement or maintenance of the working head body, reduces the maintenance cost, and is more convenient to operate when different specifications or functions of the water absorbing seat need to be replaced for different cleaning tasks, and improves the flexibility and applicability of the equipment. The split structure also has the advantages of simple overall structure and low manufacturing cost.

[0010] Optionally, the water absorbing seat includes a water absorbing panel, the water absorbing panel is fixedly connected to the shell cover, and the water absorbing panel and the shell cover enclose a cavity; a first water outlet hole is formed in the water absorbing panel, a plurality of water absorbing holes are formed in the water absorbing panel, and the water absorbing panel is fixed in the shell cover; and the flexible scrubbing and water absorbing mechanism is arranged on the side wall of the water absorbing panel away from the shell cover.

[0011] By adopting the technical scheme, the water absorption panel and the shell cover enclose to form a cavity, the cavity forms stable negative pressure and generates sufficient suction force because the total flow area of the water absorption holes on the water absorption panel is smaller than the flow area of the recovery outer pipe connected with the vacuum fan, and provides a certain space for water flow and air flow in the cleaning process, facilitating the distribution of water flow and the circulation of air flow, thereby ensuring the normal operation of the cleaning and water absorption functions. Meanwhile, after the water is delivered to the high-pressure nozzle through the quick-release joint and the working head body, the sprayed water flow rebounds after washing the surface of the cleaned object, is absorbed by the multiple layers of fabric on the flexible scrubbing and water absorption mechanism, and is temporarily stored in the space formed between the fabric and the flexible pad. On the one hand, the water flow continues to provide water source guarantee for subsequent cleaning work. On the other hand, the used water and the stains carried after cleaning are sucked back through the multiple water absorption holes, realizing the recovery of the cleaning liquid and the water absorption function of the equipment. The water in the flexible scrubbing and water absorption mechanism is not easy to flow out of the water holes under the action of gravity due to the stable negative pressure suction force of the water absorption holes and the surface tension of the fabric itself when meeting water.

[0012] Optionally, the flexible scrubbing and water absorption mechanism comprises multiple layers of mesh fabric, the multiple layers of mesh fabric are fixedly connected with the water absorption panel, and multiple adsorption holes are formed in the multiple layers of mesh fabric.

[0013] By adopting the technical scheme, the multiple layers of mesh fabric can effectively absorb and accommodate the cleaning liquid in the cleaning process through the mesh structure. After the cleaning liquid is sprayed from the nozzle and acts on the surface of the cleaned equipment, part of the cleaning liquid rebounds and is absorbed by the multiple layers of mesh fabric, and is temporarily stored in the space formed between the fabric and the flexible pad. Meanwhile, the multiple adsorption holes on the multiple layers of mesh fabric can increase the contact area with the surface of the cleaned equipment, improve the scrubbing effect, and further enhance the stain removal capability. Moreover, the adsorption holes can also assist the uniform distribution of the cleaning liquid on the surface of the fabric, making the cleaning process more efficient and uniform.

[0014] Optionally, the flexible scrubbing and water absorption mechanism further comprises a flexible pad, the flexible pad is located in the multiple layers of mesh fabric, and the multiple layers of mesh fabric and the flexible pad are higher than the surface of the shell cover.

[0015] By adopting the technical scheme, the car washing tool in the related art is tightly combined with the surface to be cleaned through the silica gel ring or the rubber ring to form a seal and establish a vacuum environment. However, in the actual car washing process, the surface to be cleaned is often irregular, and may have unevenness, gaps or local deformation. These irregularities can cause the car washing tool and the surface to be cleaned to not form a completely tight combination. Once there is a gap or a local loose combination between the car washing tool and the surface to be cleaned, the vacuum environment will be immediately destroyed, and the water in the shower head will quickly flow out from the shower head under the action of its own gravity. The flexible pad can buffer and evenly distribute pressure, so that the multi-layer mesh fabric is more closely attached to the surface of the equipment to be cleaned, improving the cleaning liquid recovery effect. At the same time, the flexible pad can further enhance the water absorption stability of the flexible scrubbing and water absorption mechanism, better store and transport the cleaning liquid, and ensure the continuity of the cleaning process. At the same time, since the multi-layer mesh fabric and the flexible pad are protruded from the surface of the shell cover, the working head body and other components can be prevented from contacting the vehicle body, effectively preventing the cleaned surface of the vehicle body from being scratched.

[0016] Optionally, the shell cover comprises a cover body, a second outer pipe, a second inner pipe and a second connecting block; the second inner pipe is located inside the second outer pipe, and the outer diameter of the second inner pipe is smaller than the inner diameter of the second outer pipe; one end of the second connecting block is fixedly connected with the second inner pipe, and the other end of the second connecting block is fixedly connected with the second outer pipe; both ends of the second outer pipe and the second inner pipe are provided in an open manner; the end of the second outer pipe is fixedly connected with the cover body, a third water outlet hole is formed through the cover body, the second outer pipe and the third water outlet hole are in communication, the end of the second inner pipe passes through the third water outlet hole, and the second connecting block is fixedly connected with the cover body.

[0017] By adopting the technical scheme, the second inner pipe is located inside the second outer pipe and is fixed through the second connecting block, forming an internal passage with distinct functions. The second outer pipe is fixedly connected with the cover body, and the cover body is provided with a second water outlet hole, so that the high-pressure water flow can directly enter the second inner pipe from the first inner pipe and be further used for cleaning. The first outer pipe is arranged inside the second outer pipe, and the outer side walls of the two abut and are clamped and matched, ensuring the stability and sealing performance of the connection between the quick release connector and the shell cover, so that the connection and disconnection process of the two becomes fast. Optionally, the water absorption seat further comprises a connecting pipe, one end of the connecting pipe is fixedly connected with the water absorption panel, and the other end of the connecting pipe is fixedly connected with the second inner pipe and is in communication.

[0018] Optionally, the quick release joint comprises a first outer tube, a first inner tube and a first connecting block; the first inner tube is located inside the first outer tube, and the outer diameter of the first inner tube is smaller than the inner diameter of the first outer tube; the first connecting block is located between the first inner tube and the first outer tube, one end of the first connecting block is fixedly connected with the first inner tube, and the other end of the first connecting block is fixedly connected with the first outer tube; both ends of the first inner tube and the first outer tube are provided in an open manner, one end of the first inner tube is used for connecting a water outlet pipe in a water supply and vacuum back-suction mechanism, and one end of the first outer tube is used for connecting a recovery hose in the water supply and vacuum back-suction mechanism; the first outer tube is clamped and matched with the shell cover.

[0019] By adopting the above technical scheme, the first inner tube is located inside the first outer tube and has an outer diameter smaller than the inner diameter of the first outer tube, and the two are fixedly connected through the first connecting block, which not only ensures the stability of the structure, but also realizes the relative independence between the inner tube and the outer tube. The two ends of the first inner tube are open, one end is used for connecting a water outlet pipe in a water supply and vacuum back-suction mechanism to transport high-pressure water flow required for cleaning; the two ends of the first outer tube are also open, one end is used for connecting a recovery hose in the water supply and vacuum back-suction mechanism to facilitate recovery of the cleaned sewage. In addition, the first outer tube is clamped and matched with the shell cover, so that the connection and disconnection of the quick release joint and the working head body become quick and convenient, greatly improving the operation efficiency and flexibility of the equipment, and facilitating the maintenance and replacement of the equipment; at the same time, different forms of working heads can be quickly replaced to realize related functions, such as replacing the cleaning working head with a flat nozzle dust collector interface, and only opening the fan to realize the function of a general dust collector.

[0020] Optionally, the shell cover comprises a cover body, a second outer tube, a second inner tube and a second connecting block; the second inner tube is located inside the second outer tube, and the outer diameter of the second inner tube is smaller than the inner diameter of the second outer tube; the second connecting block is located between the second inner tube and the second outer tube, and both ends of each second connecting block are fixedly connected with the second inner tube and the second outer tube, respectively; both ends of the second outer tube and the second inner tube are provided in an open manner; the end of the second outer tube is fixedly connected with the cover body, a third water outlet hole is formed through the cover body, the second outer tube and the third water outlet hole are in communication with each other, the end of the second inner tube passes through the third water outlet hole, and the second connecting block is fixedly connected with the cover body; the end of the first outer tube is arranged inside the second outer tube, the outer side wall of the first outer tube abuts against the outer side wall of the second outer tube, and the first outer tube is clamped and matched with the second outer tube.

[0021] By adopting the technical scheme, the second inner pipe is located inside the second outer pipe and fixed by the second connecting block, forming a stable and functionally distinct internal passage, the second outer pipe is fixedly connected with the cover body and the third water outlet hole is arranged on the cover body, so that the end of the second inner pipe passes through the hole and corresponds to the first inner pipe of the quick release connector, facilitating the high-pressure water flow directly entering the second inner pipe from the first inner pipe and being further used for cleaning; at the same time, the first outer pipe is arranged inside the second outer pipe and the outer sidewalls of the two abut and are clamped and matched, not only ensuring the stability and sealing of the connection between the quick release connector and the shell cover, but also making the connection and disconnection process of the two quick and convenient, greatly improving the operation efficiency, flexibility and maintenance convenience of the equipment, meeting the needs of users for efficient and convenient cleaning equipment.

[0022] Optionally, the water absorption seat further comprises a connecting pipe, one end of the connecting pipe is fixedly connected with the water absorption panel, the other end of the connecting pipe is fixedly connected with the second inner pipe and communicates with each other, the inside of the connecting pipe communicates with the first water outlet hole; the working head body further comprises a nozzle, one end of the nozzle is arranged in the first water outlet hole, the other end of the nozzle is arranged in the second water outlet hole, the nozzle is used for communicating the first water outlet hole and the second water outlet hole, and the nozzle is used for delivering water to the surface water outlet hole of the equipment to be cleaned.

[0023] By adopting the technical scheme, the nozzle is arranged to accurately guide the water flow, one end of the nozzle is arranged in the first water outlet hole, the other end of the nozzle is arranged in the second water outlet hole, the first water outlet hole and the second water outlet hole are tightly communicated, and it is ensured that the water delivered from the water supply and vacuum suction mechanism can be accurately delivered to the surface of the equipment to be cleaned with appropriate pressure and angle. In the cleaning process, the nozzle can adjust its shape, aperture size and other parameters according to different cleaning requirements, change the jetting mode of the water flow, such as forming fan-shaped, column-shaped and other different shaped jets, to meet the cleaning requirements of different stains and equipment surfaces, improve the cleaning specificity and effect of the water outlet hole.

[0024] The cleaning system comprises the multifunctional cleaning work head, and further comprises a water supply and vacuum recycling mechanism; the water supply and vacuum recycling mechanism comprises a main machine circulating water tank, a water outlet pipe, a recycling suction pipe, a water pump and a vacuum fan; one end of the water outlet pipe is sleeved on the first inner pipe and communicates with the first inner pipe, and the other end of the water outlet pipe communicates with the main machine circulating water tank; one end of the recycling suction pipe is sleeved on the first outer pipe and communicates with the first outer pipe, and the other end of the recycling suction pipe communicates with the main machine circulating water tank; the water outlet pipe is located inside the recycling suction pipe, and the outer diameter of the water outlet pipe is smaller than the inner diameter of the recycling suction pipe; the water pump is used for conveying water in the main machine circulating water tank to the multifunctional cleaning work head through the water outlet pipe; and the vacuum fan is used for forming a negative pressure in the recycling suction pipe, and sucking the used water back to the main machine circulating water tank through the water suction hole and the recycling suction pipe.

[0025] By adopting the technical scheme, the cleaning system realizes recycling of the cleaning liquid, effectively saves water resources and reduces cleaning cost. Specifically, the water pump conveys the water in the main machine circulating water tank to the nozzle through the water outlet pipe, the nozzle sprays the water to the flexible scrubbing and water suction mechanism at a proper pressure and angle, and then acts on the surface of the equipment to be cleaned, thereby realizing cleaning of the equipment. At the same time, the vacuum fan forms a negative pressure in the recycling suction pipe, so that the cleaned water and stains carried thereby can be sucked into the recycling suction pipe through the water suction hole and finally flow back to the main machine circulating water tank, forming a complete cleaning liquid recycling system; and during car washing, even if the multifunctional cleaning work head is held in hand, the water in the multi-layer mesh fabric can be prevented from flowing to the outside of the fabric due to gravity by virtue of the recycling function of the vacuum fan and the recycling suction pipe, thereby ensuring normal cleaning work. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 FIG. 1 is a structural schematic view of a multifunctional cleaning work head in an embodiment of the present application.

[0027] Figure 2 FIG. 2 is an assembly relationship schematic view of the multifunctional cleaning work head in the embodiment of the present application.

[0028] Figure 3 FIG. 3 is a half sectional view of a quick release joint in the embodiment of the present application.

[0029] Figure 4 FIG. 4 is a half sectional view of a shell cover in the embodiment of the present application.

[0030] Figure 5 FIG. 5 is a structural schematic view of the nozzle from another perspective in the embodiment of the present application.

[0031] Figure 6 FIG. 6 is a structural schematic view of the water suction panel from another perspective in the embodiment of the present application.

[0032] BRIEF DESCRIPTION OF DRAWINGS 1, quick release joint; 11, first outer tube; 12, first inner tube; 13, first connecting block; 14, inner positioning ring; 15, outer positioning ring; 16, holding block; 17, clamping piece; 2, working head body; 21, shell cover; 211, cover body; 212, second outer tube; 213, second inner tube; 214, second connecting block; 215, third water outlet hole; 216, clamping groove; 22, water suction seat; 221, water suction panel; 2211, water suction hole; 2212, grid groove 2213, annular groove; 222, first water outlet hole; 223, connecting pipe; 224, water blocking ring; 23, transition pipe; 24, nozzle; 241, water outlet hole; 242, water expansion groove; 3, flexible scrubbing and water suction mechanism; 31, multi-layer mesh fabric; 311, adsorption hole; 312, second water outlet hole; 32, flexible pad; 4, water outlet pipe; 5, recycling suction pipe. DETAILED DESCRIPTION

[0033] The following will be described in detail in combination with the accompanying drawings Figures 1-6 The present application will be further described in detail.

[0034] The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components.

[0035] Description: A cleaning working head suitable for various cleaning scenes, especially suitable for various cleaning scenes where water is inconvenient to take / waste, the object to be cleaned is relatively dirty and needs a long cleaning time, and the operation space is relatively narrow; such as vehicle cleaning in urban residential area underground parking lot, kitchen hood cleaning, and long-term bedridden patient excrement cleaning, etc.

[0036] Example 1 The embodiments of the present application disclose a cleaning working head suitable for various cleaning scenes, taking cars as the main cleaning object, but not limited to car cleaning scenes, referring to Figure 1 and Figure 2The cleaning work head device comprises a quick-release joint 1, a work head body 2 and a flexible scrubbing and water absorbing mechanism 3. One end of the quick-release joint 1 is detachably connected to the work head body 2 for quick connection and separation, and the other end of the quick-release joint 1 is used to connect the water supply and vacuum suction mechanism to ensure stable water supply during cleaning. The overall structure is simple and the manufacturing cost is low. The work head body 2 is provided with the flexible scrubbing and water absorbing mechanism 3 at the end away from the quick-release joint 1, so that the work head body 2 can effectively absorb and remove water and stains on the car during cleaning, improving the cleaning effect. Since the work head body 2 and the quick-release joint 1 are detachably connected, when the work head body 2 needs to be replaced or cleaned, the operator can easily detach the work head body 2 from the quick-release joint 1, and then reinstall it after completing the corresponding operation. The whole process is very convenient. In actual work, the user holds the work head body 2 and moves it on the surface of the car. The water supply and vacuum suction mechanism and the quick-release joint 1 continuously provide stable water source for the work head body 2, and the work head body 2 uses its own cleaning function and the water absorbing and stain removing ability of the flexible scrubbing and water absorbing mechanism 3 to clean the surface of the car.

[0037] With reference to Figure 2 and Figure 3 The quick-release joint 1 comprises a first outer pipe 11, a first inner pipe 12 and a plurality of first connecting blocks 13. The diameter of the first inner pipe 12 is smaller than that of the first outer pipe 11. The first inner pipe 12 is located inside the first outer pipe 11, and the axis of the first inner pipe 12 coincides with that of the first outer pipe 11. The diameter of the outer sidewall of the first inner pipe 12 is smaller than that of the inner sidewall of the first outer pipe 11. The plurality of first connecting blocks 13 are located between the first inner pipe 12 and the first outer pipe 11, and are uniformly distributed in the circumferential direction. Each first connecting block 13 is integrally formed with the outer sidewall of the first inner pipe 12 on the side close to the first inner pipe 12, and is integrally formed with the inner sidewall of the first outer pipe 11 on the side close to the first outer pipe 11, thereby fixing the first inner pipe 12 to the inner sidewall of the first outer pipe 11. The two ends of the first outer pipe 11 and the first inner pipe 12 are both open, and the end of the first outer pipe 11 is aligned with the end of the first inner pipe 12.

[0038] With reference to Figure 1The water supply and vacuum suction mechanism comprises a main circulating water tank and a disposable water purification tank, a water outlet pipe 4, a recovery suction pipe 5, a water pump and a vacuum fan. The main circulating water tank provides water source for the whole flexible scrubbing and recovery mechanism, and the water is recovered to the main circulating water tank in time through the water supply and vacuum suction mechanism to realize continuous work until all positions of the vehicle body are fully cleaned. Meanwhile, the main circulating water tank also has a filtering function, and a filter screen is arranged inside the main circulating water tank to preliminarily filter the water entering the water tank, remove large impurities in the water, prevent the impurities from being sucked into the water outlet pipe again and participating in cleaning, causing blockage or damaging the vehicle body paint, and prolong the use condition of the equipment. After the whole vehicle body is fully cleaned, the rinsing function is switched to, the water supply is changed to the disposable water purification tank, the working head uses completely clean water to clean the residual dirt on the vehicle body, and then the recovery mechanism is used to return to the main circulating water tank, and finally when the sewage discharge site is reached, the drain electromagnetic valve is opened to empty all used sewage.

[0039] With reference to Figure 1 , Figure 2 and Figure 3 , one end of the water outlet pipe 4 and the recovery suction pipe 5 are in communication with each other inside the main circulating water tank, and the water outlet pipe 4 is located inside the recovery suction pipe 5, and the outer diameter of the water outlet pipe 4 is smaller than the inner diameter of the recovery suction pipe 5. One end of the water outlet pipe 4 is arranged in the first inner pipe 12, and the outer side wall of the water outlet pipe 4 abuts against the inner side wall of the first inner pipe 12, and the two are fixedly connected to ensure the stability of the structure. The inner positioning ring 14 is integrally formed on the inner side wall of the first inner pipe 12, and the inner positioning ring 14 is located at the center position of the first inner pipe 12, and the end of the water outlet pipe 4 abuts against one end of the inner positioning ring 14. The first inner pipe 12 plays a supporting and positioning role for the water outlet pipe 4, and the integrally formed inner positioning ring 14 provides an accurate position reference for the installation of the water outlet pipe 4, ensuring that the installation position of the water outlet pipe 4 in the first inner pipe 12 is accurate.

[0040] With reference to Figure 1 , Figure 2 and Figure 3 , the recovery suction pipe 5 is sleeved on the outer side wall of the first outer pipe 11, and the outer side wall of the first outer pipe 11 is integrally formed with the outer positioning ring 15, and the end of the recovery suction pipe 5 abuts against the outer side wall of the outer positioning ring 15. The recovery suction pipe 5 is made of a material with good flexibility and wear resistance, and has a certain negative pressure resistance, such as a skeleton rubber or polyurethane material or a spiral steel wire silica gel pipe, which can maintain good sealing performance and good appearance shape during bending and moving.

[0041] With reference to Figure 1, the water pump as a power source, for the water outlet pipe 4 power, the main engine circulating water tank water to the place where water is needed with high pressure to meet the specific water demand, such as high pressure washing, spraying and other operations. The water pump has intelligent control system, can automatically adjust the speed and output power of water pump according to the actual water demand, while ensuring the cleaning effect, reduce energy consumption. The water pump also has overload protection function, when the water pump running process appears overload, can automatically stop running, avoid damage due to overload, improve the safety and reliability of equipment.

[0042] With reference to Figure 1 , the vacuum fan is used to form negative pressure in the recovery pipe 5, so that the recovery pipe 5 can smoothly recover the used water, so that it can backflow to the main engine circulating water tank, realize the recycling of water resources. The vacuum fan adopts high quality small diameter brushless motor driven on the market, high running efficiency. Under the premise of meeting smaller machine volume and non plug in use of rechargeable battery, can provide higher negative pressure environment and longer endurance. The noise generated in the process of operation is small, which will not cause disturbance to the operator and the surrounding environment. The vacuum fan also has high efficiency of air volume regulation function, which can automatically adjust the air volume according to the flow and speed of the recovered water, so as to ensure the stability of the negative pressure in the recovery pipe 5. The air duct of the vacuum fan is equipped with water filter device, the recovered gas-liquid mixture first passes through the water filter device to return to the water tank, and the air washed by water is discharged from the fan exhaust port, which completely avoids the secondary pollution of dust.

[0043] With reference to Figure 1 , the total length of the water outlet pipe 4 and the recovery pipe 5 between the cleaning equipment main engine circulating water tank and the working head body 2 is relatively long, and the lowest point of the pipeline is mostly on the ground. The interface of the main engine circulating water tank connecting the pipeline is a certain height from the ground, which has a requirement for the speed of gas-liquid mixture in the pipeline. Without considering the energy loss caused by pipeline resistance, the kinetic energy brought by flow velocity must be enough to overcome the potential energy produced by the relative height of the interface position from the ground, so as to ensure that the cleaning liquid is sucked back to the main engine circulating water tank; Otherwise, it will be accumulated in the lowest point of the pipeline, completely block the flow path, and then cause the negative pressure in the cavity to disappear, completely lose the effect.

[0044] With reference to Figure 2 and Figure 4The working head body 2 includes an outer shell 21 and a water suction seat 22. The outer shell 21 is funnel-shaped, and the water suction seat 22 is fixed inside the outer shell 21. The outer shell 21 includes a cover body 211, a second outer tube 212, a second inner tube 213, and a plurality of second connecting blocks 214. The diameter of the second inner tube 213 is smaller than the diameter of the second outer tube 212. The second inner tube 213 is located inside the second outer tube 212, and the axis of the second inner tube 213 coincides with that of the second outer tube 212. The diameter of the outer side wall of the second inner tube 213 is smaller than the diameter of the inner side wall of the second outer tube 212. Multiple second connecting blocks 214 are located between the second inner tube 213 and the second outer tube 212. These blocks are evenly distributed circumferentially. Each second connecting block 214 is integrally formed with the outer sidewall of the second inner tube 213 near its sidewall and with the inner sidewall of the second outer tube 212 near its sidewall, thus fixing the second inner tube 213 to the inner sidewall of the second outer tube 212. Both ends of the second outer tube 212 and the second inner tube 213 are open, and the ends of the second outer tube 212 are aligned with the ends of the second inner tube 213.

[0045] Continue to refer to Figure 2 and Figure 4 The cover 211 is integrally formed on the end of the second outer tube 212 away from the quick-release connector 1, and the end of the cover 211 away from the quick-release connector 1 is open to facilitate the installation and removal of the water-absorbing base 22. The cover 211 is bowl-shaped, narrower at the end near the second outer tube 212 and wider at the end near the flexible scrubbing and water-absorbing mechanism 3. A through third water outlet 215 is provided in the center of the cover 211. The diameter of the third water outlet 215 is less than or equal to the inner diameter of the second outer tube 212, and larger than the outer diameter of the second inner tube 213. The ends of multiple second connecting blocks 214 away from the second inner tube 213 are integrally formed with the inner sidewall of the cover 211, increasing the overall connection strength of the outer cover 21.

[0046] Reference Figure 2 , Figure 3 and Figure 4, it is worth noting that in order to improve the convenience of the staff to install and dismount the work head body 2, a quick mounting and quick dismounting structure is specially arranged. At the same time, a plurality of circumferentially uniformly distributed clamping pieces 17 are fixed on the outer side wall of the first outer pipe 11 of the quick dismounting joint 1, the clamping pieces 17 are in the shape of a cylinder or a cuboid, the clamping pieces 17 can be integrally formed with the first outer pipe 11, of course, they can also be fixed on the outer side wall of the first outer pipe 11 through the way of plug-in cooperation. And a plurality of L-shaped clamping grooves 216 are correspondingly arranged on the inner side wall of the second outer pipe 212 of the work head body 2. When the work head body 2 needs to be connected with the quick dismounting joint 1, the clamping pieces 17 are only needed to be aligned with the clamping grooves 216 and inserted, then rotated by a certain angle, so that the clamping pieces 17 are clamped and cooperated with the clamping grooves 216, the quick installation of the work head body 2 is realized. When the work head body 2 needs to be dismounted, the work head body 2 is only needed to be reversely rotated, so that the clamping pieces 17 are separated from the clamping grooves 216, then the work head body 2 can be easily dismounted from the quick dismounting joint 1, the operation efficiency of the staff is improved. At the same time, the holding blocks 16 are integrally formed on the opposite sides of the outer positioning ring 15, the quick dismounting joint 1 is more labor-saving through rotating the holding blocks 16 to install and dismount.

[0047] With reference to Figure 2 , Figure 3 and Figure 4 , the cleaning work head further comprises a transition pipe 23, and the transition pipe 23 is made of metal. One end of the transition pipe 23 is inserted into the inner side wall of the first inner pipe 12 and fixedly connected with the first inner pipe 12, and the end of the transition pipe 23 abuts against one end of the inner positioning ring 14 close to the work head body 2. The other end of the transition pipe 23 is inserted into the inside of the second inner pipe 213, and the outer side wall of the transition pipe 23 abuts against the inner side wall of the second inner pipe 213.

[0048] With reference to Figure 2 , Figure 3 and Figure 4 , the inner side wall of the second outer pipe 212 is provided with one or more first annular grooves, and a first sealing ring is arranged in each first annular groove, and the inner side wall of the first sealing ring abuts against the outer side wall of the first outer pipe 11. The first sealing ring increases the sealing property between the outer side wall of the first outer pipe 11 and the inner side wall of the second outer pipe 212, and guarantees the sealing of the air passage of the back suction pipe.

[0049] With reference to Figure 4 , Figure 2 and Figure 5 , the inner side wall of the second inner pipe 213 is provided with one or more second annular grooves, and a second sealing ring is arranged in each second annular groove, and the inner side wall of the second sealing ring abuts against the outer side wall of the transition pipe 23. The second sealing ring increases the sealing property between the transition pipe 23 and the second inner pipe 213, and guarantees that the cleaning liquid will not leak and the airtightness of the back suction pipe 5 can be maintained.

[0050] With reference to Figure 2 , the second inner tube 213 is extended from the plurality of second connecting blocks 214 and the inner side wall of the cover body 211 at one end thereof, facilitating installation and removal of the water absorption seat 22. Specifically, the water absorption seat 22 comprises a water absorption panel 221 and a connecting pipe 223, one end of the connecting pipe 223 being integrally formed with the water absorption panel 221. The connecting pipe 223 is sleeved on the portion of the second inner tube 213 extended from the second connecting blocks 214, and the surfaces of the plurality of second connecting blocks 214 abut against the end of the second connecting blocks 214 at the same time. The connecting pipe 223 is fixedly connected with the second inner tube 213, and the plurality of second connecting blocks 214 have a positioning effect on the connecting pipe 223, thereby fixing the water absorption seat 22 inside the outer shell cover 21, and the flexible scrubbing and water absorption mechanism 3 is arranged on the side wall of the water absorption panel 221 away from the outer shell cover 21.

[0051] With reference to Figure 4 and Figure 2 , the end of the connecting pipe 223 towards the flexible absorption mechanism is threadedly fitted with a nozzle 24, and the nozzle 24 is provided with a water spraying hole 241 penetrating along the axial direction. The end of the nozzle 24 close to the flexible scrubbing and water absorption mechanism 3 is also provided with a water expanding groove 242, the end of the water spraying hole 241 towards the flexible scrubbing and water absorption mechanism 3 communicates with the water expanding groove 242, and both ends of the water expanding groove 242 are provided in an open manner. By changing the inner diameter of the water spraying hole 241 and the width and shape of the water expanding groove 242, the water sprayed from the nozzle 24 can form different jet states.

[0052] With reference to Figure 2 and Figure 6 , the water absorption panel 221 is in the shape of a round cake, and the actual shape only needs to be adapted to the outer shell cover and can form a pre-enclosed cavity in combination with the outer shell cover. A plurality of water absorption holes 2211 penetrating the water absorption panel 221 are provided, and the total inner diameter of all the water absorption holes 2211 is much smaller than the diameter of the return absorption hose. The total amount of air in the return absorption channel discharged by the high-speed rotation of the vacuum fan in a unit time cannot be sufficiently supplemented by the air inlet of the group of water absorption holes 2211, so as to form sufficient vacuum negative pressure in the space between the second outer tube 212 and the water absorption panel 221. Meanwhile, the outer side wall of the water absorption panel 221 is integrally formed with a water blocking ring 224, the end of the water blocking ring 224 close to the cover body 211 is extended from the surface of the water absorption panel 221, and the end of the water blocking ring 224 close to the flexible scrubbing and water absorption mechanism 3 is flush with the surface of the water absorption panel 221. The outer side wall of the water blocking ring 224 is further sleeved with a sealing ring 225. When the water absorption seat 22 is fixed in the cover body 211, the outer side wall of the sealing ring 225 abuts against the inner side wall of the open end of the cover body 211, thereby fixing the water absorption seat 22 in the cover body 211 and increasing the sealing between the water absorption seat 22 and the cover body 211.

[0053] With reference toFigure 2 In another embodiment, the structure of the water absorption panel 221 is optimized. The inner side wall of the water absorption hole 2211 is fixedly provided with a sleeve by sleeve gluing and molding. The sleeve is made of hard material, such as stainless steel, ceramic, etc., to form the water absorption hole. The material of the water absorption panel 221 is changed to flexible material. In operation, the flexible water absorption panel 221 can produce a certain displacement to adapt to the irregular shape of the surface, which not only ensures the stability of the water absorption hole, but also combines the adaptability of the flexible water absorption panel 221.

[0054] Referring to Figure 6 and Figure 2 In this embodiment, the flexible scrubbing and water absorption mechanism 3 includes a plurality of layers of mesh fabric 31 and a flexible pad 32. The plurality of layers of mesh fabric 31 is fixedly connected to the water absorption panel 221, and the plurality of layers of mesh fabric 31 and the water absorption seat 22 are connected by clamping and fitting. Specifically, a plurality of clamping grooves are formed on the inner side wall or the outer side wall of the water absorption seat 22, and the plurality of clamping grooves are uniformly distributed in the circumferential direction. Each clamping groove is in the shape of a triangular groove (or other non-strip-shaped or cuboid-shaped groove, such as a body-shaped groove or a round cake-shaped groove). A corresponding number of clamping blocks are fixedly arranged on the plurality of layers of mesh fabric 31, and the clamping blocks are also uniformly distributed in the circumferential direction. The clamping blocks correspond one-to-one to the clamping grooves, and the clamping blocks are in the shape of a triangle (or a body shape, a round cake shape, etc.). The outer side wall of the clamping block tightly abuts the inner side wall of the clamping groove. In order to improve the firmness of the clamping block, a magnet is embedded in the clamping block and the clamping groove. Through the double action of clamping and magnetic attraction, the plurality of layers of mesh fabric 31 is stably and detachably connected. When all the clamping blocks are accurately installed in the clamping grooves, the plurality of layers of mesh fabric 31 is firmly fixed to the end of the water absorption seat 22 away from the shell cover 21, so as to ensure that the plurality of layers of mesh fabric 31 will not be completely separated during use. When disassembling, use appropriate tools (such as a small crowbar or a fingernail) to gently pry the clamping block, so that it gradually comes out of the clamping groove, until all the clamping blocks are completely separated from the clamping groove. Then the plurality of layers of mesh fabric 31 can be detached from the water absorption seat 22.

[0055] Referring to Figure 6 and Figure 6, a plurality of adsorption holes 311 are formed on the multi-layered mesh fabric 31, and a second water outlet hole 312 is formed in the center of the multi-layered mesh fabric 31 for conveying the cleaning liquid to the surface of the vehicle. The flexible pad 32 is fixedly connected to the water absorption panel 221, and is located between the water absorption panel 221 and the multi-layered mesh fabric 31. The multi-layered mesh fabric 31 and the flexible pad 32 protrude from the surface of the shell cover 21, so that the working head body and other components are prevented from contacting the vehicle body, and the cleaned surface of the vehicle body is effectively prevented from being scratched. In this embodiment, the flexible pad 32 has a mesh structure, such as a fishing net or a spider web structure. In another embodiment, a plurality of flexible columns 321 perpendicular to the surface of the flexible pad 32 can be arranged on the side of the flexible pad 32 facing the multi-layered mesh fabric 31, so as to increase the flexibility of the flexible pad 32. The flexible pad 32 can be made of silica gel, high-density latex, sponge or the like.

[0056] With reference to Figure 2 and Figure 6 , the water absorption panel 221 is provided with a grid groove 2212 on the side close to the flexible scrubbing and water absorption mechanism 3, and the grid groove 2212 is in communication with the plurality of water absorption holes 2211. This communication relationship enables the cleaning liquid in the flexible scrubbing and water absorption mechanism 3 to be smoothly diverted into the plurality of water absorption holes 2211 through the grid groove 2212 when the cleaning liquid needs to be sucked back into the main machine circulating water tank during the cleaning process. Even if the solid part of the flexible pad 32 blocks the end of some water absorption holes 2211, the cleaning liquid can still find other unblocked water absorption holes 2211 along the grid groove 2212 due to the presence of the grid groove 2212, so as to ensure that each water absorption hole 2211 can realize the function of recycling the cleaning liquid.

[0057] With reference to Figure 2 , the grid groove 2212 has various structural forms, which can be arranged in a layout similar to a Go board, or can be composed of a plurality of annular grooves. The annular grooves are spaced apart from each other from the inside to the outside, and the water absorption holes 2211 are contained in the annular grooves, so that each water absorption hole 2211 is surrounded by the grid groove 2212. The cross-sectional shape of each annular groove can be V-shaped, trapezoidal or semicircular.

[0058] With reference to Figure 2 and Figure 1When cleaning the car, the multi-layer mesh fabric 31 and the flexible pad 32 together form a temporary storage space for the backwashing cleaning liquid by means of liquid surface tension. The mesh structure of the multi-layer mesh fabric 31 not only absorbs the fine sand particles on the surface to be cleaned, but also prevents the sand particles from sliding on the surface to be cleaned and causing mechanical damage. The flexible pad 32 mainly provides a large degree of deformation and self-recovery effect, ensures the adhesion of the working surface and the surface to be cleaned, reduces the uncontrolled loss of cleaning liquid, and provides a soft working contact surface to avoid potential damage to the object to be cleaned. Since the flexible pad 32 is a mesh structure, and a plurality of annular grooves are formed on the water absorption panel 221, when the solid part of the flexible pad 32 blocks the end of some water absorption holes 2211, the cleaning liquid in the flexible scrubbing and water absorption mechanism 3 can be distributed to the plurality of water absorption holes 2211 through the annular grooves, ensuring that each water absorption hole 2211 can realize the function of recycling cleaning liquid.

[0059] With reference to Figure 1 , the cleaning liquid stored in the space formed by the multi-layer mesh fabric 31, the flexible pad 32 and the water absorption panel 221 on the working head body 2 is sucked back to the main machine circulating water tank through the channels formed by the water absorption holes 2211. The smaller the effective diameter of all the water absorption holes 2211 combined (i.e. reducing the diameter of a single water absorption hole 2211 or reducing the number of water absorption holes 2211), the greater the negative pressure P1 that can be formed in the cavity of the working head body 2; at the same time, the greater the pressure loss P2 generated when the mixture of air and cleaning liquid passes through the water absorption holes 2211, and the pressure ΔP=P1-P2 that actually produces the suction effect. Under the pressure difference of ΔP, the total flow rate is greater than the cleaning liquid injection speed and has sufficient redundancy to ensure that all the liquid participating in cleaning on the working surface can be recycled.

[0060] With reference to Figure 5 , it is worth noting that when the passability of the water absorption holes 2211 is not considered, the water absorption panel 221 and the cover body 211 together form a relatively closed cavity to ensure that the water absorption holes 2211 are always in a negative pressure working environment. If there is no corresponding structure of the water absorption panel 221, the multifunctional cleaning working head is basically in an open state in direct communication with the surrounding air, and only after the outermost part of the multifunctional cleaning working head is in complete contact with the surface of the object to be cleaned to form a seal, a negative pressure environment can be formed.

[0061] With reference to Figure 1 , after the multifunctional cleaning working head is assembled, i.e. the quick release joint 1, the working head body 2, the flexible scrubbing and water absorption mechanism 3, the transition pipe 23, the nozzle 24 and other components are installed together, a complete and cooperative system is formed between the components.

[0062] With reference to Figure 2 andFigure 6 First, from the water supply path, the host circulating water tank as a water supply container, one end of the water outlet pipe 4 and the host circulating water tank inside communication, the other end through the first inner tube 12 in the quick release connector 1, and the water outlet pipe 4 outside wall and the first inner tube 12 inside wall just abutment and through the fixed connection to ensure the stability of the structure. The inner positioning ring 14 of the first inner tube 12 inside wall is integrally formed, which provides accurate installation position reference for the water outlet pipe 4, and plays a supporting and positioning role. One end of the transition pipe 23 is inserted into the inner side wall of the first inner tube 12 and fixedly connected with the first inner tube 12, and the end abuts against the inner positioning ring 14 close to one end of the working head body 2. The other end is inserted into the second inner tube 213 of the working head body 2, and the outer side wall of the transition pipe 23 abuts against the inner side wall of the second inner tube 213. In this way, the water in the host circulating water tank flows through the first inner tube 12, the transition pipe 23 and the second inner tube 213 in turn through the water outlet pipe 4, and finally reaches the nozzle 24. The nozzle 24 is provided with a through water jet hole 241 along the axis direction, and the end close to the flexible scrubbing and water absorbing mechanism 3 is also provided with a water expansion groove 242 which is in communication with the water jet hole 241. By changing the inner diameter of the water jet hole 241 and the width and shape of the water expansion groove 242, the water jet from the nozzle 24 can form different jet states, and the surface of the car can be cleaned.

[0063] Referring to Figure 2 , Figure 3 and Figure 4Secondly, in terms of the water return path, the recovery straw 5 is sleeved outside the first outer pipe 11 of the quick release connector 1, and the outer positioning ring 15 integrally formed on the outer side wall of the first outer pipe 11 provides positioning for the recovery straw 5, and the end of the recovery straw 5 abuts against the outer side wall of the outer positioning ring 15. The inner side wall of the second outer pipe 212 of the working head body 2 and the outer side wall of the first outer pipe 11 are sealed by the first sealing ring, thereby ensuring the sealing of the air passage of the recovery straw. After cleaning the surface of the car, the water enters the space between the second outer pipe 212 and the water suction panel 221 through the plurality of water suction holes 2211 on the water suction panel 221 under the action of the vacuum fan. Since the total effective diameter of all the water suction holes 2211 is much smaller than the diameter of the recovery hose, the total amount of air in the recovery channel discharged by the high-speed rotation of the vacuum fan in a unit time cannot be sufficiently supplemented through the air inlet of this group of water suction holes 2211, and a sufficient vacuum negative pressure is formed in the space between the second outer pipe 212 and the water suction panel 221, so as to suck the water back to the main machine circulating water tank, thereby realizing the recycling of water resources. At the same time, the water suction panel 221 is provided with a plurality of annular grooves on the side close to the flexible scrubbing and water suction mechanism 3, the plurality of annular grooves are arranged at intervals from inside to outside, and each annular groove is in communication with the plurality of water suction holes 2211. The annular grooves provide physical fixation and support for the working surface flexible part of the multi-layer mesh fabric 31 and the flexible pad 32, and the water suction panel 221 and the cover body 211 jointly form a relatively closed cavity (not considering the passability of the water suction holes 2211), thereby ensuring that the water suction holes 2211 can always be in a negative pressure working environment.

[0064] With reference to ​ , ​ and ​ In addition, in the connection structure of the quick release connector 1 and the working head body 2, the outer side wall of the first outer pipe 11 of the quick release connector 1 is fixed with a plurality of clamping pieces 17 uniformly distributed in the circumferential direction, and the inner side wall of the second outer pipe 212 of the working head body 2 is correspondingly provided with a plurality of L-shaped clamping grooves 216. By aligning the clamping pieces 17 with the clamping grooves 216 and inserting them, and then rotating them by a certain angle, the clamping pieces 17 can be clamped and matched with the clamping grooves 216, thereby realizing the quick installation of the working head body 2. By reversely rotating the working head body 2, the clamping pieces 17 can be detached from the clamping grooves 216, thereby easily detaching the working head body 2 from the quick release connector 1. At the same time, the gripping blocks 16 are integrally formed on the opposite sides of the outer positioning ring 15, and the quick release connector 1 is more labor-saving by rotating the gripping blocks 16 to install and detach it. The inner side wall of the second inner pipe 213 is in abutment with the outer side wall of the transition pipe 23 through the second sealing ring, thereby increasing the sealing between the transition pipe 23 and the second inner pipe 213.

[0065] The implementation principle of the above embodiment is that after the multifunctional cleaning work head is assembled, the components work together to form a complete system. When water is supplied, the main machine circulating water tank serves as a water supply container, and the cleaning liquid flows through the first inner pipe 12 of the quick release connector 1, the transition pipe 23, the second inner pipe 213 of the work head body 2 in sequence, and finally reaches the nozzle 24, from which different shaped jets are sprayed to clean the surface of the car. When the water is returned, the cleaned water enters the space between the second outer pipe 212 and the water suction panel 221 through the plurality of water suction holes 2211 on the water suction panel 221 under the action of the vacuum fan, and a sufficient vacuum negative pressure is formed in the space between the second outer pipe 212 and the water suction panel 221 due to the fact that the total effective diameter of the water suction holes 2211 is much smaller than the diameter of the return suction hose (vacuum fan), so that the water is sucked back to the main machine circulating water tank to realize water resource recycling. The flexible scrubbing and water suction mechanism 3 plays an important role in the cleaning process. The multi-layer mesh fabric 31 utilizes the liquid surface tension effect and the flexible pad 32 to jointly constitute a temporary space for storing the return cleaning liquid. The mesh structure of the multi-layer mesh fabric 31 not only can absorb and contain small sand particles on the cleaned surface to prevent the sand particles from sliding on the cleaned surface to cause mechanical damage, but also can further remove stains due to the wiping effect of the multi-layer mesh fabric 31 itself. The flexible pad 32 mainly provides a large degree of deformation and self-recovery effect, ensures the close fit between the working surface and the cleaned surface, reduces the uncontrolled loss of cleaning liquid, and at the same time provides a soft working contact surface to avoid potential damage to the cleaned object.

[0066] Embodiment 2 The multifunctional cleaning work head of the present embodiment has the same part structure as that of embodiment 1, but the work head body 2 is of an integrated structure, the overall structure is simple, and the manufacturing cost is low. The work head body 2 is made of high-strength and corrosion-resistant material as a whole, ensuring the stability and durability in use. The integrated structure simplifies the manufacturing process, reduces the assembly steps and potential connection problems, improves the overall strength and sealing performance, and reduces the risk of cleaning liquid leakage. In use, the operator directly connects the integrated work head body 2 with the quick release connector 1 through clamping, without the need for additional assembly steps, and can be easily disassembled by reverse rotation. The cleaning work head body 2 in the present embodiment is suitable for various cleaning scenes, with cars as the main cleaning object, but is not limited to car cleaning scenes. Although the work head body 2 is of an integrated structure, the multi-layer mesh fabric 31 and the water suction seat 22 can still be installed in a combined manner of clamping and magnetic attraction fixation, and the specific installation and disassembly manner is the same as that of embodiment 1.

[0067] Embodiment 3 The multifunctional cleaning work head of the present embodiment has the same component parts and connection mode as Embodiment 1, but the work head body 2 is in the shape of a cuboid, a square or a box. The overall structure of the work head body 2 in this shape is simple, easy to manufacture, low in cost, can better fit the curves and concave-convex parts of the surface of the car, improve the cleaning effect, and is convenient for the operator to hold and operate. When cleaning the edges and corners of the car, it can better contact the surface, reduce the dead angle of cleaning, and improve the cleaning efficiency. The work head body 2 in the present embodiment is also suitable for various cleaning scenes.

[0068] Embodiment 4 The present embodiment is the same as Embodiment 3 in shape, i.e., the work head body 2 is in the shape of a cuboid, a square or a box, but the work head body 2 is a one-piece overall structure. The one-piece structure simplifies the manufacturing process, the overall structure is simpler, the manufacturing cost is further reduced, the overall strength and sealing performance are improved, and the work head body 2 is more reliable and durable during use. The connection between the flexible scrubbing and water absorbing mechanism 3 and the one-piece work head body 2 is more close and stable, ensuring that it closely fits the outer side wall of the work head body 2 during work, effectively absorbing moisture and stains. The one-piece cuboid or box-shaped work head body 2 combines the cleaning advantages of the cuboid shape and the stability of the one-piece structure, has a compact structure, is convenient to carry and store, and reduces the maintenance and use cost. The cleaning work head body 2 in the present embodiment is also suitable for various cleaning scenes.

[0069] Embodiment 5 The multifunctional cleaning work head of the present embodiment has the same component parts and connection mode as Embodiment 1, and the only difference is the shape, i.e., the work head body 2 in the present embodiment has an acute angle shape less than 90 degrees. The cleaning work head body 2 in the present embodiment is suitable for various cleaning scenes, especially scenes that require cleaning of narrow spaces, such as automobile hubs, door gaps and other narrow parts.

[0070] Embodiment 6 The present embodiment is the same as Embodiment 5 in structure, i.e., the work head body 2 has an acute angle shape less than 90 degrees, but the work head body 2 is a one-piece overall structure. The one-piece structure improves the overall strength and sealing performance, making the work head body 2 more stable and reliable during cleaning, reducing potential connection problems and leakage risks. The connection between the flexible scrubbing and water absorbing mechanism 3 and the one-piece work head body 2 is more close and stable, ensuring that it closely fits the outer side wall of the work head body 2 during work, effectively absorbing moisture and stains. The one-piece acute angle-shaped work head body 2 combines the cleaning advantages of the acute angle shape and the stability of the one-piece structure, has excellent performance, and ensures the stability of the cleaning quality. The cleaning work head body 2 in the present embodiment is suitable for various cleaning scenes, especially scenes that require cleaning of narrow spaces, such as automobile hubs, door gaps and other narrow parts.

[0071] Example 7 The multifunctional cleaning work head of this embodiment is optimized for cleaning household appliances rich in heavy oil stains, such as range hoods. Each component is made of high-temperature-resistant and corrosion-resistant materials to ensure long-term stable operation in high-temperature and oil-stained environments. The work head body 2 and its connecting components are made of special alloys or composite materials that can withstand high temperatures and are not easily corroded by oil stains. In terms of working method, high-temperature hot water is used for cleaning, which quickly softens and dissolves oil stains, improving cleaning efficiency. The water supply and vacuum suction mechanism can stably provide high-temperature hot water and ensure constant water temperature. An appropriate amount of oil stain remover or surfactant can be added to the cleaning solution to enhance the dissolving and stripping ability of oil stains.

[0072] Example 8 The multifunctional cleaning work head of this embodiment is innovative for the special needs of nursing bedridden patients. The work head body 2 components are made of flexible silicone material, and the size is reduced, serving as a convenient tool for bathing or toilet cleaning. Flexible silicone material has good softness, elasticity, and biocompatibility, which can closely fit the human skin and provide a comfortable cleaning experience. The work head body 2 is reduced in size, making it easy to hold and operate, and can easily enter the body gaps and hard-to-reach areas. The smooth surface of the work head body 2 avoids scratching and irritating the patient's skin. The water supply and vacuum suction mechanism uses low pressure and low flow to ensure that the patient does not feel uncomfortable during cleaning. The recovery system uses a high-efficiency water suction mechanism and filtration system to quickly recover and process the cleaned wastewater.

[0073] Example 9 The multifunctional cleaning work head of this embodiment uses the characteristics of the quick-release head to expand its functions. By replacing the circulating cleaning work head body 2 with a dust collection mechanism, it realizes the function of a vacuum cleaner. The dust collection mechanism includes a quick-release connector 1, a dust filter screen, and a duckbill-shaped suction nozzle. The quick-release connector 1 is threadedly connected with the duckbill-shaped suction nozzle, and the dust filter screen is fixed between the quick-release connector 1 and the duckbill-shaped suction nozzle. The dust filter screen is made of high-efficiency filtering material, which can effectively intercept the inhaled dust and debris. The shape of the duckbill-shaped suction nozzle allows it to closely fit the ground or other cleaned surfaces, improving the dust collection efficiency. When it is necessary to switch the cleaning work head to a vacuum cleaner function, the operator only needs to remove the circulating cleaning work head body 2 from the quick-release connector 1, connect the quick-release connector 1 of the dust collection mechanism with the corresponding interface on the equipment, adjust the control system, stop the water pump, and only start the vacuum fan.

[0074] Example 10 The embodiment provides a cleaning system which integrates a multifunctional cleaning work head, a dust suction mechanism and a water supply and vacuum suction mechanism, and forms a multifunctional and efficient cleaning solution. The multifunctional cleaning work head adopts the cleaning work head body 2 in any one of the embodiments 1 to 9, and the specific structure includes a quick release connector 1, the work head body 2 and a flexible scrubbing and water suction mechanism 3. The water supply and vacuum suction mechanism includes a main machine circulating water tank, a water outlet pipe 4, a recycling suction pipe 5, a water pump and a vacuum fan, and ensures the stable supply of water source and the recycling of water resources in the cleaning process. The dust suction mechanism is realized by replacing the cleaning work head body 2 with a dust suction assembly, and includes the quick release connector 1, a dust filter screen and a duckbill-shaped suction nozzle (or other shaped suction nozzles). In the dust suction mode, only the vacuum fan is started, so that a strong suction force is generated in the dust suction mechanism, dust and sundries are sucked in and collected through the dust filter screen. The cleaning system is suitable for various cleaning scenes, including but not limited to car cleaning, household cleaning, industrial equipment cleaning and the like.

[0075] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A multi-functional cleaning head, characterized by: The utility model provides a quick detachable joint (1), work head body (2) and flexible scrubbing and water absorption mechanism (3), work head body (2) includes fixedly connected shell cover (21) and water absorption seat (22), one end of quick detachable joint (1) is detachably connected with shell cover (21), the other end of quick detachable joint (1) is used for connecting water supply and vacuum back absorption mechanism, flexible scrubbing and water absorption mechanism (3) are arranged on water absorption seat (22), and flexible scrubbing and water absorption mechanism (3) are used to clean equipment and store cleaning fluid.

2. The multi-functional cleaning head of claim 1, wherein: The work head body (2) is an integral structure, and the shell cover (21) and the water absorption seat (22) are integrally formed; or the work head body (2) is a split structure, and the shell cover (21) and the water absorption seat (22) are detachably connected.

3. A multifunctional cleaning head according to claim 1 or 2, characterized in that: The water absorption seat (22) includes a water absorption panel (221) fixedly connected to the shell cover (21), and the water absorption panel (221) and the shell cover (21) form a cavity; a plurality of water absorption holes (2211) are formed through the water absorption panel (221), and the water absorption panel (221) is fixed inside the shell cover (21); the flexible scrubbing and water absorption mechanism (3) is arranged on the side wall of the water absorption panel (221) away from the shell cover (21).

4. A multi-functional cleaning head as claimed in claim 3, wherein: The flexible scrubbing and water absorption mechanism (3) includes a plurality of layers of mesh fabric (31) fixedly connected to the water absorption panel (221), and a plurality of adsorption holes (311) are formed in the mesh fabric (31); a second water outlet (312) is formed in the center of the mesh fabric (31), the first water outlet (222) and the second water outlet (312) are in communication with each other, and the first water outlet (222) and the second water outlet (312) are used to deliver water to the surface of the equipment to be cleaned.

5. A multi-functional cleaning head as claimed in claim 4, wherein: The flexible scrubbing and water absorption mechanism (3) further includes a flexible pad (32) arranged in the mesh fabric (31), and the mesh fabric (31) and the flexible pad (32) protrude from the surface of the shell cover (21).

6. A multi-functional cleaning head as claimed in claim 5, wherein: The water absorption panel (221) is provided with a grid slot (2212) on the side facing the flexible scrubbing and water absorption mechanism (3), the grid slot (2212) is in communication with a plurality of water absorption holes (2211), and the flexible pad (32) is a mesh structure.

7. The multi-functional cleaning head of claim 3, wherein: The quick release joint (1) comprises a first outer tube (11), a first inner tube (12) and a first connecting block (13); the first inner tube (12) is located inside the first outer tube (11), the outer diameter of the first inner tube (12) is smaller than the inner diameter of the first outer tube (11); the first connecting block (13) is located between the first inner tube (12) and the first outer tube (11), one end of the first connecting block (13) is fixedly connected with the first inner tube (12), the other end of the first connecting block (13) is fixedly connected with the first outer tube (11); both ends of the first inner tube (12) and the first outer tube (11) are provided in an open manner, one end of the first inner tube (12) is used for connecting the water outlet pipe (4) in the water supply and vacuum back suction mechanism, one end of the first outer tube (11) is used for connecting the recovery suction pipe (5) in the water supply and vacuum back suction mechanism; the first outer tube (11) is in clamping connection with the shell cover (21).

8. A multi-functional cleaning head as claimed in claim 7, wherein: The shell cover (21) comprises a cover body (211), a second outer tube (212), a second inner tube (213) and a second connecting block (214); the second inner tube (213) is located inside the second outer tube (212), the outer diameter of the second inner tube (213) is smaller than the inner diameter of the second outer tube (212); the second connecting block (214) is located between the second inner tube (213) and the second outer tube (212), both ends of each second connecting block (214) are fixedly connected with the second inner tube (213) and the second outer tube (212) respectively; both ends of the second outer tube (212) and the second inner tube (213) are provided in an open manner; the end of the second outer tube (212) is fixedly connected with the cover body (211), the cover body (211) is provided with a third water outlet hole (215) penetrating through, the second outer tube (212) and the third water outlet hole (215) are in communication with each other, the end of the second inner tube (213) penetrates through the third water outlet hole (215), and the second connecting block (214) is fixedly connected with the cover body (211); the end of the first outer tube (11) penetrates into the second outer tube (212), the outer side wall of the first outer tube (11) abuts against the outer side wall of the second outer tube (212), and the first outer tube (11) is in clamping connection with the second outer tube (212).

9. A multi-functional cleaning head as claimed in claim 8, wherein: The water absorption seat (22) further comprises a connecting pipe (223), one end of the connecting pipe (223) is fixedly connected with the water absorption panel (221), the other end of the connecting pipe (223) is fixedly connected with the second inner pipe (213) and communicates with each other, the inside of the connecting pipe (223) communicates with the first water outlet hole (222); the working head body (2) further comprises a nozzle (24), one end of the nozzle (24) is provided in the first water outlet hole (222), the other end of the nozzle (24) is provided in the second water outlet hole (312), the nozzle is used for communicating the first water outlet hole (222) and the second water outlet hole (312), and the nozzle (24) is used for conveying water to the surface of the equipment to be cleaned.

10. A cleaning system characterized by: The multifunctional cleaning working head comprises a water supply and vacuum recycling mechanism; the water supply and vacuum recycling mechanism comprises a main machine circulating water tank, a water outlet pipe, a recycling suction pipe (5), a water pump and a vacuum fan; one end of the water outlet pipe is sleeved on the first inner pipe (12) and communicates with the first inner pipe (12), the other end of the water outlet pipe communicates with the main machine circulating water tank; one end of the recycling suction pipe (5) is sleeved on the first outer pipe (11) and communicates with the first outer pipe (11), the other end of the recycling suction pipe (5) communicates with the main machine circulating water tank; the water outlet pipe is located in the recycling suction pipe (5), the outer diameter of the water outlet pipe is smaller than the inner diameter of the recycling suction pipe (5); the water pump is used for conveying water in the main machine circulating water tank to the multifunctional cleaning working head through the water outlet pipe; the vacuum fan is used for forming negative pressure in the recycling suction pipe (5) and recycling used water to the main machine circulating water tank through the water absorption hole (2211) and the recycling suction pipe (5).

Images