Horizontal cleaning apparatus

Abstract

The present application relates to a kind of horizontal cleaning equipment, belong to cleaning device technical field.For the problem that the cleaning force is small, the water consumption is large, and the surface to be cleaned is easily abraded in the existing cleaning mode, the present application provides a kind of horizontal cleaning equipment, including cleaning system and the sewage recovery system used in conjunction with cleaning system, the sewage recovery system includes at least one water shovel, the water shovel is fixed on rotating mechanism, the rotating mechanism middle part is provided with sewage collection groove, rotating mechanism is connected with cleaning equipment main support structure by bearing.The cleaning equipment of the present application forms the compact integrated cleaning process of flushing, brushing, blowing, drying, sewage recovery filtering circulation reuse, achieves the beneficial effects of high standard, high efficiency, water saving and the like.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning device technology, specifically a cleaning device. Background Technology

[0002] Common techniques for cleaning object surfaces include: using brooms and vacuum cleaners to remove sand and dust; using mops and cloths to wipe away dirt; using water and brushes to scrub; and using high-pressure water to wash away dirt. Each of these cleaning methods has the following drawbacks:

[0003] 1. Brooms and vacuum cleaners have low cleaning power and are only suitable for cleaning loose sand and dust with weak adhesion. They are ineffective against dirt and stains with strong adhesion.

[0004] 2. While wet fibers such as mops and rags can remove dirt and stains that have a certain degree of adhesion, they also have drawbacks:

[0005] (1) It has a good cleaning effect only on relatively smooth surfaces such as glass and marble, but it is not good at cleaning non-smooth surfaces such as gaps and textures.

[0006] (2) Wet fiber wiping material will repeatedly push particles, dust and other particles on the surface being cleaned, causing surface abrasion like sandpaper, making the surface faded and worn.

[0007] (3) It is impossible to achieve a high level of cleanliness. Because wiping cloths, mops and other wiping materials are cleaned intermittently and then wiped repeatedly, they are only relatively clean right after being cleaned. After wiping, there is almost always dirt, so it is impossible to achieve a high standard of cleanliness.

[0008] 3. Using a brush and / or high-pressure water to scrub is a good cleaning method, but it also has limitations:

[0009] (1) Sewage flows everywhere and is not easy to recycle, or is limited to a relatively enclosed cleaning space or an open space that is not afraid of sewage pollution;

[0010] (2) High water consumption;

[0011] (3) If the ground is cleaned, the cleaning effect and cleaning standards are not high because it is not easy to recycle the wastewater.

[0012] 4. Cleaning robots: Current cleaning robots still use wiping methods for cleaning. Their wiping and cleaning methods have not changed fundamentally. They are similar to the cleaning methods of rags, brushes, mops, etc. The corresponding cleaning standards are not high. They have disadvantages such as abrasion on the surface being cleaned and unsuitability for cleaning non-smooth surfaces. They only replace and reduce human cleaning labor. Utility Model Content

[0013] To address the problems existing in the prior art, this utility model provides a cleaning device that can recycle wastewater in real time, solving the problems of low cleaning power, high water consumption, and easy abrasion of the cleaned surface in existing cleaning methods. While efficiently recycling wastewater, it can also filter and reuse it. At the same time, this utility model also significantly improves the cleaning efficiency of existing cleaning equipment and the cleaning effect on rough surfaces.

[0014] This invention utilizes a high-pressure water and high-pressure air system, employing high-speed thin-film water and airflow to efficiently, effectively, and water-savingly rinse, blow, and dry the surface being cleaned. Its wastewater recovery system promptly collects the wastewater after cleaning, and a semi-enclosed water-blocking cover prevents splashing and secondary pollution. The recovered wastewater is then filtered and recycled. Furthermore, the integrated brush plate and / or brush combined with the water shovel further enhances the cleaning effect. Through these features, a compact integrated cleaning process encompassing rinsing, brushing, blowing, drying, and wastewater recovery and filtration achieves highly efficient, water-saving, and highly clean cleaning results.

[0015] The specific technical solution of this utility model is as follows.

[0016] This utility model provides a horizontal cleaning device, including a cleaning system and a wastewater recovery system used in conjunction with the cleaning system. The wastewater recovery system includes at least one water shovel, which is fixed on a rotating mechanism. A wastewater collection tank is provided in the middle of the rotating mechanism, and the rotating mechanism is connected to the main support structure of the cleaning device through bearings.

[0017] Preferably, the front end of the water shovel has an L-shaped sewage collection part, and there are one or more water shovels. When there are multiple water shovels, all water shovels are evenly arranged on the rotating mechanism in the circumferential direction.

[0018] Preferably, the sewage collection tank is a cavity with an opening at the top.

[0019] Preferably, the wastewater recycling system is provided with a water-blocking cover, which is connected to the main support structure of the cleaning equipment, and the bottom of the water-blocking cover extends to the surface to be cleaned.

[0020] Preferably, the wastewater recycling system further includes a filtration zone, which includes at least a two-stage filtration structure. The filtration zone is equipped with a coarse filter and a fine filter. The coarse filter performs primary filtration on the wastewater, and the fine filter performs secondary filtration on the wastewater. The wastewater after secondary filtration enters the clean water zone.

[0021] Preferably, the filtration zone is located within the wastewater collection tank.

[0022] Preferably, the wastewater collection tank is connected to the wastewater tank, and the filtration zone is located inside the wastewater tank.

[0023] Preferably, the cleaning system includes a clean water zone connected to a purified water zone, and a check valve is installed between the clean water zone and the purified water zone. The check valve is opened and closed by pressure difference.

[0024] Preferably, the cleaning system includes a jet nozzle, the jet nozzle spraying at an angle such that high-pressure water is sprayed onto the surface to be cleaned at the front end of the water shovel; the jet nozzle nozzle orifice has two parallel surfaces at its front end.

[0025] Preferably, the length of the flow channel at the front end of the nozzle is greater than or equal to the width of the jet nozzle orifice.

[0026] Preferably, it further includes a compressed gas nozzle fixed to the jet nozzle, the rear end of which is connected to a compressed gas pipeline; the front flow channel of the compressed gas nozzle orifice has two mutually parallel surfaces.

[0027] Preferably, there are one or two compressed gas nozzles, which are disposed on one side or distributed on both sides of the jet nozzle; the flow channel at the front end of the compressed gas nozzle is parallel to the flow channel at the front end of the jet nozzle.

[0028] Preferably, the width of the jet nozzle orifice is less than 2 mm, and / or the width of the compressed gas nozzle orifice is less than 2 mm.

[0029] Preferably, the cleaning system includes a jet nozzle, the jet nozzle spraying at an angle such that high-pressure water is sprayed onto the surface to be cleaned at the front end of the water shovel; the flow channel at the front end of the jet nozzle nozzle has a uniform cross-section structure.

[0030] Preferably, a compressed gas nozzle is provided circumferentially on the outer side of the jet nozzle, and the rear end of the compressed gas nozzle is connected to a compressed gas pipeline; the flow channel at the front end of the compressed gas nozzle orifice has a uniform cross-section structure.

[0031] Preferably, the nozzle of the jet nozzle has a constricted nozzle structure.

[0032] Preferably, the nozzle of the compressed gas nozzle has a constricted nozzle structure.

[0033] Preferably, the nozzle of the jet nozzle and / or the nozzle of the compressed gas nozzle is a V-shaped flared structure with an elliptical opening.

[0034] Preferably, the cleaning system includes an integral jet nozzle and a compressed gas nozzle, referred to as a "gas-liquid nozzle". The angle of the gas-liquid nozzle is such that high-pressure water is sprayed onto the surface to be cleaned at the front end of the water shovel. The gas-liquid nozzle is mounted on a mounting base, and the angle between the gas-liquid nozzle and the mounting base is adjustable. The mounting base is provided with a first fluid channel and a first compressed gas channel, and the jet nozzle is provided with a second fluid channel and a second compressed gas channel. The second fluid channel on the jet nozzle is connected to the first fluid channel on the mounting base, and the second compressed gas channel on the compressed gas nozzle is connected to the first compressed gas channel on the mounting base.

[0035] Preferably, the angle-adjustable structure specifically comprises a spherical rear end of the gas-liquid nozzle and a spherical cavity provided on the mounting base that is adapted to the spherical shape of the gas-liquid nozzle.

[0036] Preferably, the angle-adjustable structure specifically comprises a cylinder at the rear end of the gas-liquid nozzle, and a cylindrical cavity on the mounting base that is adapted to the cylinder of the gas-liquid nozzle.

[0037] Preferably, the outlet of the first fluid channel and / or the first compressed gas channel on the mounting base is a flared trough structure.

[0038] Preferably, the rear end of the jet nozzle and / or the rear end of the compressed gas nozzle is a flared groove structure.

[0039] Preferably, it also includes a brush plate or brush bristles disposed between the jet nozzle and the water shovel.

[0040] This utility model has the following beneficial effects:

[0041] This invention overcomes the shortcomings and limitations of traditional cleaning methods, such as low cleaning power, poor cleaning effect on non-smooth surfaces, low cleaning standards, easy abrasion of the ground, wastewater splashing and flowing, difficulty in recycling and reuse, and high water consumption. The specific beneficial effects are as follows:

[0042] 1. Wastewater recovery systems such as water shovels and water shields can prevent wastewater from splashing and flowing, and can recover wastewater in a timely manner, enabling precise control of the area being cleaned and making it applicable to a wider range of cleaning fields with higher requirements.

[0043] 2. The nozzle described in this utility model can form a high-speed fan-shaped thin film water flow, which has the advantages of low water consumption and strong cleaning power, and can continuously clean without secondary pollution, thereby achieving high efficiency and water saving effect.

[0044] 3. The combination of compressed air and jet nozzles can quickly clean and dry the surface after high-pressure water washing, and reduce the attenuation of high-speed thin film water flow velocity and thickness, thereby improving the cleaning effect and standard.

[0045] 4. Use high-speed water film and airflow for cleaning to avoid friction and damage to the ground.

[0046] 5. It can also achieve a good cleaning effect with a small amount of water for asphalt pavement, brick, stone, as well as non-smooth surfaces such as cracks and textures.

[0047] 6. The cleaning equipment of this utility model forms a compact integrated cleaning process of rinsing, brushing, blowing, drying, wastewater recycling and filtration, achieving beneficial effects such as high standards, high efficiency, and water saving. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the overall structure of a cleaning device;

[0049] Figure 2 This is a structural diagram of a water shovel;

[0050] Figure 3 This is a schematic diagram showing the working relationship between the water shovel and the rotating mechanism;

[0051] Figure 4 yes Figure 3 Sectional view along axis AA;

[0052] Figure 5 This is a schematic diagram showing the connection between the sewage recovery pipe and the sewage tank;

[0053] Figure 6 This is a structural diagram of the water-blocking cover;

[0054] Figure 7 This is a cross-sectional schematic diagram of the sewage collection tank;

[0055] Figure 8 This is a cross-sectional view of the sewage collection tank;

[0056] Figure 9 yes Figure 8 Sectional view along axis AA;

[0057] Figure 10 This is a schematic diagram of the internal structure of the sewage tank;

[0058] Figure 11 This is a schematic diagram of the structure of the jet nozzle orifice front flow channel as described in Embodiment 6, which is a parallel plane;

[0059] Figure 12 This is a schematic diagram of the structure of the jet nozzle orifice front flow channel as described in Example 6, which is a parallel curved surface;

[0060] Figure 13 This is a schematic diagram of the flow channel structure at the front end of the jet nozzle and the compressed gas nozzle fixed on one side as described in Embodiment 6;

[0061] Figure 14 This is a schematic diagram of the flow channel structure at the front end of the jet nozzle and the compressed gas nozzle fixed on both sides as described in Embodiment 6;

[0062] Figure 15 This is a schematic diagram of the velocity field of high-speed water flow in a relatively still air environment;

[0063] Figure 16 This is a schematic diagram showing the relationship between the distance the water flows forward and the speed of the water flow;

[0064] Figure 17 This is a schematic diagram showing the relationship between water flow velocity and range;

[0065] Figure 18 This is a schematic diagram illustrating the principle of water flow and air jet.

[0066] Figure 19 This is a schematic diagram of the flow channel structure at the front end of the jet nozzle with a circular cross-section as described in Example 7;

[0067] Figure 20 This is a schematic diagram of the flow channel structure at the front end of the nozzle, where compressed gas nozzles are arranged circumferentially on the outside of the jet nozzle as described in Embodiment 7.

[0068] Figure 21 This is a schematic diagram of the flow channel structure at the front end of the nozzle where a compressed gas nozzle is provided in the circumferential part outside the jet nozzle, as described in Embodiment 7.

[0069] Figure 22 This is a schematic diagram of the flow channel structure of the jet nozzle and the compressed gas nozzle nozzle front end fixed on one side as described in Embodiment 6, wherein the flow channel of the "non-nozzle front end" is a constricted structure.

[0070] Figure 23 This is a schematic diagram of the flow channel structure of the jet nozzle and the compressed gas nozzle fixed on both sides of it as described in Embodiment 8, wherein the nozzle of the jet nozzle is a constricted structure.

[0071] Figure 24 This is a schematic diagram of the gas-liquid nozzle structure described in Example 9;

[0072] Figure 25 yes Figure 24 CC-direction sectional view;

[0073] Figure 26 yes Figure 24 DD section view;

[0074] Figure 27 This is a schematic diagram of the installation structure of the gas-liquid nozzle in the mounting base as described in Embodiment 9, wherein the rear end of the gas-liquid nozzle is a spherical body;

[0075] Figure 28 yes Figure 27 BB-direction sectional view;

[0076] Figure 29 yes Figure 27 CC-direction sectional view;

[0077] Figure 30 This is a schematic diagram of the installation structure of the gas-liquid nozzle in the mounting base as described in Example 9, wherein the rear end of the jet nozzle is a flared groove structure;

[0078] Figure 31 yes Figure 30 BB-direction sectional view;

[0079] Figure 32 This is a schematic diagram of the installation structure of the gas-liquid nozzle in the mounting base as described in Embodiment 9, wherein the rear end of the gas-liquid nozzle is a cylinder;

[0080] Figure 33 yes Figure 32 BB-direction sectional view;

[0081] Figure 34 yes Figure 32 CC-direction sectional view;

[0082] Figure 35 This is a schematic diagram of the gas-liquid nozzle structure described in Example 9, wherein the nozzle orifice of the jet nozzle is a constricted structure;

[0083] Figure 36 yes Figure 35 DD section view;

[0084] Figure 37 yes Figure 35 View from direction A;

[0085] Figure 38 This is a front view showing the working relationship between the water shovel and the brush bristles;

[0086] Figure 39 It is an isometric view of the water shovel and brush bristles.

[0087] In the diagram: 1-Water shovel, 2-Sewage collection tank, 3-Rotating mechanism, 4-Small gear, 5-Large gear, 6-Bearing, 7-Main support structure of cleaning equipment, 8-Motor, 9-Jet nozzle, 10-Water baffle, 12-Water baffle cover plate, 13-Water baffle side plate, 14-High-pressure water flow, 15-Sewage collection area, 16-High-speed water jet strip, 17-Ground, 18-Sewage recovery pipe, 19-Cleaning system, 20-Sewage recovery system, 21-Coarse filter screen, 22-Fine filter screen, 23-Sewage tank, 24-Clean water tank, 25-Check valve, 26-Jet nozzle front end flow channel, 26-1-Parallel plane, 26 -2- Parallel curved surface, 27- Compressed gas nozzle, 28- Mounting base, 29- Fluid channel 1, 30- Fluid channel 2, 31- Compressed gas channel 1, 32- Compressed gas channel 2, 33- Nozzle, 34- Flow channel at the front end of the compressed gas nozzle, 35- Flow channel at the "non-nozzle front end", 36- Narrowing structure, 37- Flaring trough 1, 38- Flaring trough 2, 39- Flaring trough 3, 40- V-shaped flaring groove, 101- Wastewater collection section, 102- Wastewater discharge section, 103- Brush bristles, 211- Primary filtration zone, 221- Secondary filtration zone (clean water zone), 241- Clear water zone. Detailed Implementation

[0088] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0089] The connections mentioned in this utility model are divided into fixed connections and detachable connections. Fixed connections (i.e., non-detachable connections) include, but are not limited to, conventional fixed connection methods such as folded connections, riveted connections, adhesive connections, and welded connections. Detachable connections include, but are not limited to, conventional disassembly methods such as threaded connections, snap-fit ​​connections, pin connections, and hinged connections. When a specific connection method is not explicitly defined, it is assumed that at least one existing connection method can always be found to achieve the function, and those skilled in the art can choose according to their needs. For example, a welded connection can be chosen for fixed connections, and a hinged connection can be chosen for detachable connections.

[0090] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0091] Furthermore, in the following descriptions of various embodiments, all aspects not explicitly stated to differ from other embodiments are identical. That is, structures not described in the current embodiment can be combined with some or all of the structures in other embodiments, but are not repeated for the purpose of saving space.

[0092] Example 1

[0093] Combination Figures 1-5 This embodiment describes a horizontal cleaning device, which includes a cleaning system 19 and a wastewater recovery system 20 used in conjunction with the cleaning system 19. The wastewater recovery system 20 includes at least one water shovel 1, which is fixed on a rotating mechanism 3. The rotating mechanism 3 has a wastewater collection tank 2 with an upper opening in the middle, and the wastewater collection tank 2 is located at the center of the rotating mechanism 3 and does not rotate with the rotating mechanism 3.

[0094] The water shovel 1 can be one or more, with multiple water shovels 1 evenly arranged circumferentially on the rotating mechanism 3, see [reference]. Figure 3 , Figure 4 , Figure 5 The rotating mechanism 3 is connected to the main support structure 7 of the cleaning equipment via bearing 6.

[0095] like Figure 1 , Figure 2 As shown, the front end of the water shovel 1 has an L-shaped sewage collection part 101, which is used to scoop up sewage from the surface being cleaned (for simplicity, the "surface being cleaned" is referred to as "ground", and the figure is denoted by 17; of course, the surface being cleaned in this invention is not limited to the ground, but also includes other objects such as tabletops, countertops, etc.). The rear end of the water shovel 1 is a sewage discharge part 102, which is used to discharge sewage.

[0096] During cleaning, such as Figure 1As shown, the cleaning system 19 uses high-pressure water jets 14 to wash the ground 17. The wastewater naturally flows forward and is blocked by the water shovel, forming a wastewater collection area 15. The water shovel 1 rotates through the rotating mechanism 3, and its wastewater collection part 101 just scoops up the wastewater in the wastewater collection area 15. As the water shovel 1 rotates upward through the rotating mechanism 3, when it reaches the upper part of the rotating mechanism 3, the wastewater flows downward from the wastewater discharge part 102 of the water shovel 1. The wastewater discharge position is directly above the wastewater collection tank 2. The wastewater flows into the wastewater collection tank 2 and continues to flow out as the rotating mechanism 3 continues to rotate, completing one collection. As the high-pressure water jets 14 are sprayed out continuously, the water shovel 1 rotates and scoops up the wastewater continuously, completing the continuous collection of wastewater.

[0097] The sewage collection tank 2 is located at the center of the rotating mechanism 3 and can be pulled out and loaded horizontally, such as... Figure 3 , Figure 4 , Figure 5 The diagram shows a semi-cylindrical or semi-cylindrical container that is closed at both ends. After the sewage collection tank 2 collects sewage, it can be connected to the outside through the sewage recovery pipe 18 set inside it, and the sewage can be discharged into the sewage tank 23.

[0098] Multiple water shovels 1 are evenly arranged on the rotating mechanism 3 along the circumference. The rotating mechanism 3 is installed on the main support structure 7 of the cleaning equipment through bearings 6. The water shovels 1 and the rotating mechanism 3 are connected as a fixed whole. The water shovels 1 are driven to rotate around the central axis by the motor 8, the small gear 4, and the large gear 5 through the bearings 6, so that the water shovels 1 can circulate and collect the sewage on the ground 17, and then rotate and lift it to overflow and pour it into the sewage collection tank 2.

[0099] The large gear 5 is located on the outer edge of the rotating mechanism 3 near the end and meshes with the small gear 4. The small gear 4 is mounted on the output shaft of the motor 8. The motor 8 is mounted on the main support structure 7 of the cleaning equipment.

[0100] During cleaning, follow Figure 1 The cleaning movement direction shown indicates that the high-pressure water flow 14 of the cleaning system 19 cleans the ground 17 from the rear to the front and lower side, removing dirt and then promptly recovering the wastewater through the wastewater recovery system 20. The cleaning system 19 and the wastewater recovery system 20 are connected as a whole, moving forward to clean. The wastewater after cleaning is promptly recovered, and even if there is residual wastewater, it is pushed forward by the high-speed water flow 14 and collected again by the continuously circulating water shovel 1, ensuring that the surface remains dry after being washed by the high-pressure water flow. The wastewater in the wastewater collection tank 2 can be emptied periodically when it is full, or it can be collected into the wastewater tank 23 through the wastewater recovery pipe 18 at regular intervals or in real time.

[0101] Example 2

[0102] Combination Figure 4 , Figure 6This embodiment differs from Embodiment 1 in that a water-blocking cover 10 is provided outside the wastewater recycling system 20. The water-blocking cover 10 is connected to the main support structure 7 of the cleaning equipment, and the bottom of the water-blocking cover 10 extends to the ground 17. The water-blocking cover 10 is composed of a water-blocking cover plate 12 and a water-blocking cover side plate 13.

[0103] During cleaning, the water-blocking cover 10 is attached to the ground 17, forming a semi-enclosed cleaning chamber. The high-speed water jet 16 formed by the high-pressure water jet 14 hitting the ground 17, together with the side plate 13 of the water-blocking cover and the water shovel 1, forms a dike, creating a sewage collection area 15. At the same time, the forward momentum of the high-speed water jet 16 causes the sewage in the sewage collection area 15 to accumulate to a certain water level, which is convenient for the water shovel 1 to collect the sewage using the sewage collection part 101. The water-blocking cover 12 and the side plate 13 of the water-blocking cover also prevent sewage from splashing and overflowing in all directions after the high-pressure water jet 14 washes the ground 17.

[0104] Example 3

[0105] The difference between this embodiment and the previous embodiment is that the wastewater recycling system 20 also includes a filtration zone, which includes at least a two-stage filtration structure, namely a first-stage coarse filter 21 and a second-stage fine filter 22. The coarse filter 21 performs primary filtration of the wastewater, and the fine filter 22 performs secondary filtration of the wastewater. The wastewater after secondary filtration enters the clean water zone 221.

[0106] Specifically, such as Figure 7 , Figure 8 , Figure 9 As shown, the filtration zone is set inside the sewage collection tank 2, and the coarse filter screen 21 is set at the upward opening of the sewage collection tank 2. The width B2 of the coarse filter screen 21 is... Figure 9 (As shown) The width B1 of the sewage discharge section 102 of the water shovel 1 is greater than that of the sewage discharge section 102. Figure 2 As shown), the sewage overflowing from the sewage discharge section 102 can flow onto the coarse filter screen 21, and after filtration, it penetrates into the primary filtration zone 211 inside the sewage collection tank 2. The water that has been preliminarily filtered by the primary filtration zone 211 further passes through the fine filter screen 22 that separates the sewage collection tank 2 along its length, and is filtered into the secondary filtration zone 221. The water in the secondary filtration zone 221 is relatively clean water that can be recycled for cleaning. The clean water in the secondary filtration zone 221 can be extracted through the recycling pipe for recycling.

[0107] Example 4

[0108] Combination Figure 10This embodiment is described below. The sewage collection tank 2 and the sewage tank 23 are connected by a sewage recovery pipe 18. The sewage in the sewage collection tank 2 enters the sewage tank 23 through the sewage recovery pipe 18. The difference between this embodiment and embodiment 3 is that a filtration zone is set in the sewage tank 23. The sewage first passes through the coarse filter 21 of the filtration zone for preliminary filtration and then enters the primary filtration zone 211. The water in the primary filtration zone 211 is further filtered by the fine filter 22 and then enters the secondary filtration zone (clean water zone) 221. The water filtered by the fine filter 22 reaches a relatively clean standard and can be recycled.

[0109] Example 5

[0110] The difference between this embodiment and the previous embodiments is that, referring to... Figure 10 The cleaning system 19 includes a clean water zone 241, which is located inside a clean water tank 24. The clean water tank 24 can be installed independently or integrated with the wastewater tank 23. The clean water zone refers to the area where clean water is directly injected into the clean water tank 24. The purified water zone is the area where the collected wastewater has been filtered at least twice.

[0111] The clear water zone 241 is connected to the clean water zone 221. A check valve 25 is installed between the clean water zone 221 and the clear water zone 241. The check valve 25 opens and closes based on the pressure difference between the different liquid levels in the clean water zone 221 and the clear water zone 241. When the liquid level in the clean water zone 221 is higher than the check valve 25 and higher than the liquid level in the clear water zone 241, the check valve 25 opens due to the water pressure difference, and the clean water that has undergone secondary filtration in the clean water zone 221 enters the clear water zone 241 through the check valve 25. When the liquid level in the clean water zone 221 is lower than the check valve 25 and / or lower than the liquid level in the clear water zone 241, the check valve 25 closes due to the water pressure difference, and the clean water in the clear water zone 241 never flows into the clean water zone 221.

[0112] Example 6

[0113] The difference between this embodiment and the previous embodiment is that the cleaning system 19 includes a jet nozzle 9, and the angle at which the jet nozzle 9 sprays high-pressure water onto the surface 17 to be cleaned at the front end of the water shovel 1; the flow channel 26 at the front end of the jet nozzle 9 has two parallel surfaces, see... Figure 11 , Figure 12 .

[0114] Two parallel planes can be like this Figure 11 The parallel plane 26-1 shown can also be as follows: Figure 12The parallel curved surface 26-2 shown can also be a structure that combines both plane and curved surfaces. The "nozzle front flow channel" 26 refers to the flow channel located at the front end of the nozzle 33 inside the jet nozzle 9 (in this embodiment, the nozzle 33 refers to the end of the outlet of the jet nozzle 9). This part of the flow channel is provided with two mutually parallel surfaces. The purpose is to regulate the turbulent flow in the fluid into laminar flow so that the ejected fluid is in the form of a thin film. The length of this part can be set according to the purpose of use (fluid properties and flow velocity). Generally, the length J of the nozzle front flow channel needs to be greater than or equal to the width H of the nozzle 9.

[0115] Reference Figure 13 This embodiment also includes a compressed gas nozzle 27 fixed to the jet nozzle 9, the rear end of which is connected to a compressed gas pipeline (not shown in the figure); the flow channel 34 at the nozzle tip of the compressed gas nozzle 27 has two parallel surfaces. Similarly, the two parallel surfaces of the compressed gas nozzle 27 can also be parallel planes and / or parallel curved surfaces (not separately labeled). It should also be noted that the flow channel structure of the "non-nozzle tip" of the jet nozzle 9 and the compressed gas nozzle 27 can be the same as that of the "nozzle tip" flow channel, such as... Figure 12 , Figure 14 The figures shown are both parallel surfaces with the same cross-section. They can also be different, such as... Figure 11 , Figure 13 , Figure 22 The flow channel 35 shown as "non-nozzle front end" has a narrowing structure (Note: The "non-nozzle front end flow channel" in this embodiment refers to the same flow channel as the "nozzle front end flow channel", but they are different names due to their different positions. The "non-nozzle front end flow channel" is located far away from the nozzle 33 relative to the "nozzle front end flow channel").

[0116] In this embodiment, "fixed" means that the compressed gas nozzle 27 and the jet nozzle 9 are fixed in position when in use, and can be connected in a detachable or non-detachable manner when not in use.

[0117] Reference Figure 11 and Figure 13 The width H of the jet nozzle 9 is less than 2 mm, and / or the width h of the compressed gas nozzle 27 is less than 2 mm, thereby making the fluid ejected by the jet nozzle 9 and / or the gas ejected by the compressed gas nozzle 27 into a thin film. The "width of the nozzle" refers to the distance between the two parallel surfaces of the flow channel at the front end of the nozzle.

[0118] The compressed gas nozzle 27 can be one or two. Figure 13The compressed gas nozzle 27 shown is a single unit, located on one side of the jet nozzle 9, with the front flow channel 34 of the compressed gas nozzle 27 and the front flow channel 26 of the jet nozzle 9 being parallel to each other. Taking cleaning as an example, during cleaning, the jet nozzle gradually moves forward to spray high-speed water to rinse the working surface. The parallel high-pressure air located on one side of the jet nozzle 9 (installed so that it is behind the direction of movement of the jet nozzle) can then blow away the residual water stains, so that the working surface achieves the effect of rapid cleaning and drying.

[0119] Figure 14 The compressed gas nozzles 27 shown are two in number and distributed on both sides of the jet nozzle 9. The flow channels 34 at the front end of the nozzles 27 are parallel to the flow channels 26 at the front end of the jet nozzle 9. This allows the gas ejected from the compressed gas nozzles 27 to be parallel to the fluid ejected from the jet nozzle 9, forming a "protective" flow. Taking cleaning as an example, during cleaning, the thin-film high-speed water flow is enveloped by a synchronously parallel high-speed airflow. This greatly reduces the resistance of the still airflow, which would cause a significant decrease in speed and atomization loss. This ensures that the high-speed thin-film water flow is ejected onto the working surface at the highest possible speed, improving the effectiveness of high-pressure water cleaning. The specific mechanism analysis is as follows:

[0120] like Figure 15 As shown, the velocity field of high-speed water flowing in still ambient air gradually decreases from the center of the water flow to the edge region in contact with the air. This is because when high-speed water flows at high speed in still ambient air, the boundary layer where it meets the air is affected by the viscosity of the air, causing the velocity at the water flow edge to decrease rapidly, especially at the boundary layer where the water flow forms a high-speed flow. Figure 15 The velocity field is shown. The boundary layer water flow near the air interface exhibits the following characteristics: the velocity direction of the water flow is turbulent, forming numerous vortices; therefore, this region is called the turbulent layer (region). The forward velocity in the turbulent layer is severely attenuated, even forming reverse velocity vortices. Within the turbulent layer, near the middle of the water flow, the water velocity direction remains consistent, flowing forward, and the rate (slope) of velocity attenuation from the inside out is much smaller than that in the turbulent layer.

[0121] Due to the velocity field characteristics of the high-speed water flow moving in still ambient air, the turbulent layer of its outer boundary layer is continuously slowed down, stripped away, and atomized as the high-speed water flow moves forward. Consequently, the thickness of the central laminar region of the high-speed water flow gradually decreases, as shown in the following details: Figure 16 As shown, as the distance L (range) the water travels forward increases, the rate at which the average velocity of the water decreases accelerates.

[0122] Right now

[0123] Furthermore, the rate of velocity decay of a high-speed water flow as the distance traveled is closely related to the diameter or thickness δ of the water flow. The thicker the water flow, the slower the velocity decay rate and the longer the relative range; the thinner the water flow, the faster the velocity decay rate and the shorter the relative range. The specific reasons are as follows: Figure 15 As shown, the thicker the water flow, the smaller the proportion of the turbulent zone at the water-air interface to the total water flow thickness; conversely, the thinner the water flow, the larger the proportion of the turbulent zone to the total water flow thickness. Therefore, the rate of decrease in water flow velocity is directly proportional to the proportion of the turbulent zone to the total water flow thickness. The specific reasons are as follows... Figure 17 As shown, the thickness of the high-speed water flow varies, and its velocity decays at different rates when moving through the air, resulting in different ranges. Curves ①, ②, and ③ represent the ranges L1 > L2 > L3 when the water flow thickness δ1 > δ2 > δ3 is different, given that the water flow has the same initial velocity V0 and is ejected from a high-pressure nozzle.

[0124] Based on the relationship between the velocity decay of the high-speed water flow and its travel distance, and the relationship between the water flow thickness and its velocity decay rate and range, it is evident that using the aforementioned nozzle can spray a thin film of high-speed water flow. The aim is to create a more uniform and wider thin film of high-speed water flow into the working surface, achieving both high efficiency and water conservation. However, to save water, using a thinner thin film of high-speed water flow suffers from the aforementioned drawbacks: the velocity decays too quickly in ambient air, resulting in a shorter range, which affects the jetting effect. Therefore, to address this drawback, utilizing high-speed air to encase the high-speed thin film of water can effectively solve this problem.

[0125] Specific mechanism analysis as follows Figure 18 As shown, compressed gas nozzles are installed on both sides of the jet nozzle. During cleaning, a thin film of high-speed water flow is formed, which is sandwiched between a high-speed channel and high-speed air. This allows the high-speed water flow and the high-speed air sandwiched within it to flow forward synchronously. The relatively still air in the environment only comes into contact with the high-speed air sandwiched within it, not directly with the high-speed water flow. This creates a velocity attenuation zone from the inside out in the high-speed air flow area, while having minimal impact on the velocity of the high-speed thin film water flow in the central area. Therefore, it ensures that the high-speed water flow is sprayed onto the working surface at a high velocity, increasing the momentum and kinetic energy of the high-speed thin film water flow impacting the working surface, which is beneficial for washing away dirt and achieving both water conservation and good cleaning effect. In other words, by using high-speed air to sandwich a high-speed water film, a thinner water film can be used to achieve a good cutting and washing effect, making it more water-saving and efficient. When used for adhesion-related functions such as spraying paint, this structure not only prevents velocity attenuation but also reduces the evaporation rate of the paint during spraying, avoiding environmental pollution.

[0126] Example 7

[0127] The difference between this embodiment and the previous embodiment is that the flow channel 26 at the front end of the jet nozzle 9 has a uniform cross-section structure. Figure 12 The structure shown has a rectangular cross-section and is of uniform cross-section. Figure 19 The structure shown has a circular cross-section and is of uniform cross-section.

[0128] Furthermore, compressed gas nozzles 27 are provided, either entirely or partially, circumferentially on the outer side of the jet nozzle 9, such as... Figure 20 As shown, the rear end of the compressed gas nozzle 27 is connected to a compressed gas pipeline (not shown in the figure), and the front flow channel 34 of the nozzle 27 has a uniform cross-section structure.

[0129] The "equal cross-section structure" mentioned in this embodiment refers to the cross-section at different positions along the length of the flow channel 34 being equal in cross-section. This cross-section can be rectangular, circular, elliptical, triangular, trapezoidal, or irregular in shape, as long as the nozzle front end has an equal cross-section guide section.

[0130] In this embodiment, "circumferentially outside the jet nozzle 9" means that when the jet nozzle 9 is circular or elliptical, the compressed gas nozzle 27 arranged circumferentially on the outer side is preferably coaxial with the jet nozzle 9; when the jet nozzle 9 has a triangular, trapezoidal, or irregular structure, the compressed gas nozzle 27 arranged circumferentially on the outer side means that it completely covers the jet nozzle 9 in the circumferential direction, or partially covers the jet nozzle 9 in the circumferential direction. In this embodiment, "completely" in "completely or partially" means completely surrounding the jet nozzle 9 in the circumferential direction, such as... Figure 20 As shown, "partial" refers to a portion that is only enclosed circumferentially, such as only enclosing the lower part of the jet nozzle 9. Figure 21 As shown, the high-pressure gas can support the high-pressure liquid, preventing the jet velocity from decreasing too quickly due to excessive distance, thus avoiding the liquid jet at the end failing to achieve the desired spraying effect.

[0131] Example 8

[0132] The difference between this embodiment and the previous embodiments is that, Figure 23 As shown, the nozzle of the jet nozzle 9 is a constricted structure 36, and the nozzle of the compressed gas nozzle 27 is also a constricted structure 36. Of course, the nozzles of the jet nozzle 9 and the compressed gas nozzle 27 can both be constricted structures, or either one can be a constricted structure. In this embodiment, "constriction" refers to a reduction in the cross-sectional area of ​​the flow channel relative to the nozzle tip (the constricted structure in this embodiment includes a gradually narrowing transition section). In this embodiment, the nozzles of the jet nozzle 9 and / or the compressed gas nozzle 27 are V-shaped flared structures with elliptical openings, see... Figure 35 , Figure 36 , Figure 37 .

[0133] Example 9

[0134] The difference between this embodiment and the previous implementation is that the jet nozzle 9 and the compressed gas nozzle 27 are an integral structure, collectively referred to as a "gas-liquid nozzle". (Refer to...) Figure 24 , 25 26, set as an integrated structure, has the advantages of compact structure and good "escort" effect. The angle of the gas-liquid nozzle is to spray high pressure water onto the cleaned surface 17 at the front end of the water shovel 1.

[0135] Reference Figure 35 , 36 37. In this embodiment, the integrated gas-liquid nozzle 9 has a constriction structure 36 at its nozzle (the constriction structure in this embodiment includes a gradually narrowing transition section). Specifically, the nozzle of the jet nozzle 9 is configured with an elliptical V-shaped flaring groove 40. The constriction structure of this nozzle is located at the edge of the elliptical outlet with the smallest flow area, causing the fluid velocity to increase rapidly as the flow area of ​​the constriction decreases, thus allowing the fluid to be ejected at high speed. After ejection, the fluid forms a fan-shaped water film along the V-shaped flaring groove 40 in the direction of the long axis of the elliptical outlet, thereby achieving a "cutting" effect similar to that of the thin film high-pressure water, and also achieving efficient water saving.

[0136] Reference Figure 27 , 28 29. The gas-liquid nozzle is mounted on the mounting base 28, and the angle between the gas-liquid nozzle and the mounting base 28 is adjustable. The mounting base 28 is provided with a first fluid channel 29 and a first compressed gas channel 31. The jet nozzle 9 is provided with a second fluid channel 30 and a second compressed gas channel 32. The second fluid channel 30 on the jet nozzle 9 is in communication with the first fluid channel 29 on the mounting base 28, and the second compressed gas channel 32 on the compressed gas nozzle 27 is in communication with the first compressed gas channel 31 on the mounting base 28. This structure allows the gas-liquid nozzle to be adjusted in three-dimensional space relative to the mounting base 28, and within any adjustable angle range, the jet nozzle 9 and the compressed gas nozzle 27 remain unobstructed with their respective fluid channels and compressed gas channels.

[0137] In this embodiment, the jet nozzle 9 and the compressed gas nozzle 27 are combined into a single structure to form a gas-liquid nozzle. It is applicable when the jet nozzle 9 is only used to spray liquid, such as water for cleaning. In this case, the high-speed thin film water sprayed by the compressed gas nozzle acts as a "protector" to prevent the jet water speed from decreasing significantly and affecting the cleaning effect. The liquid can also be an adhesive substance, such as paint. When the device described in this embodiment is used for paint spraying, the "protector" high-speed gas can reduce the paint vaporization speed, avoid environmental pollution, and protect the health of workers.

[0138] Reference Figure 27 , 2829, 30, 31, the angle-adjustable structure specifically means that the rear end of the gas-liquid nozzle is a spherical body, and the mounting base 28 is provided with a spherical cavity that is adapted to (can be transitionally fitted) the spherical body of the gas-liquid nozzle. The gas-liquid nozzle adopts a three-dimensional angle-adjustable spherical mounting structure, which can flexibly adjust the nozzle angle according to different tilt angles of the working surface, the degree of dirt on the working surface, etc., to ensure that the high-speed water flow is injected into the working surface at a suitable angle.

[0139] Reference Figure 32 , 33 34. The angle-adjustable structure can also be such that the rear end of the gas-liquid nozzle is a cylinder, and the mounting base 28 is provided with a cylindrical cavity adapted to the cylinder.

[0140] This configuration allows the gas-liquid nozzle to be adjusted in two-dimensional space relative to the mounting base 28. That is, the gas-liquid nozzle can be rotated and adjusted in the xy plane around the center of the cylinder to adapt to the tilt angle of different working surfaces. When used for cleaning, the angle can also be adjusted according to the characteristics of different dirt to achieve better cleaning results.

[0141] The outlets of the first fluid channel 29 and / or the first compressed gas channel 31 on the mounting base 28 are flared groove structures, as shown in the reference. Figure 27 , 28 29. The outlet of the first fluid channel 29 on the mounting base 28 is the first flared recess 37. The outlet of the first compressed gas channel 31 on the mounting base 28 is the second flared recess 38. Within the adjustable angle range of the spherical cavity inside the mounting base 28, the rear end of the second fluid channel 30 of its nozzle is always connected to the first fluid channel 29 of the mounting base 28 through the first flared recess 37, and the rear end of the second compressed gas channel 32 of its nozzle is always connected to the first compressed gas channel 31 of the mounting base 28 through the second flared recess 38.

[0142] Another structure of the flared recess is that the rear end of the jet nozzle 9 and / or the rear end of the compressed gas nozzle 27 is a flared recess structure, such as... Figure 30 , 31 32, 33, 34, the rear end of the jet nozzle 9 is a third flared recess 39, and the first compressed gas channel 31 of the mounting base is a second flared recess 38. The width of the above-mentioned flared recess structure in the XY plane is greater than the sum of the outlet width of the corresponding fluid channel of the mounting base and the corresponding chord length of the adjustable angle of the nozzle 1 relative to the mounting base 28, so that the gas and water channels of the nozzle remain connected within the adjustable angle range relative to the mounting base 28.

[0143] Example 10

[0144] Combination Figure 38 , Figure 39This embodiment differs from the previous embodiments in that the cleaning equipment further includes a brush plate or bristles 103, which is disposed between the jet nozzle 9 and the water shovel 1 and contacts the ground 17 during cleaning.

[0145] The specific structure is as follows: Figure 38 , Figure 39 As shown, the brush plate or bristles 103 are integrated with the water shovel 1, and each water shovel 1, evenly arranged along the rotating mechanism 3, is equipped with a brush plate or bristles 103. During cleaning, they rotate cyclically with the water shovel 1. Whenever the lower side contacts the ground 17, the ground 17 can be scrubbed. The dirt brushed off is washed into the next water shovel 1 that contacts the ground 17 by the high-speed water flow and is recycled. At the same time, as the water shovel 1 rotates upward, the brush plate or bristles 103 are also washed clean by the high-speed water flow within a certain angle range.

[0146] Therefore, the brush plate or bristles 103, which is further combined with the water shovel 1 and the jet nozzle 9, can further improve the cleaning effect of the cleaning equipment and further save the amount of cleaning water.

[0147] This embodiment is merely an exemplary description of the present utility model and does not limit its scope of protection. Those skilled in the art can make partial changes to it, as long as they do not exceed the spirit and essence of the present utility model, they are all within the scope of protection of the present utility model.

Claims

1. A horizontal cleaning device, comprising a cleaning system (19) and a wastewater recovery system (20) used in conjunction with the cleaning system (19), characterized in that, The wastewater recycling system (20) includes at least one water shovel (1), which is fixed on a rotating mechanism (3). A wastewater collection tank (2) is provided in the middle of the rotating mechanism (3), and the rotating mechanism (3) is connected to the main support structure (7) of the cleaning equipment through a bearing (6).

2. The cleaning equipment according to claim 1, characterized in that, The water shovel (1) has an L-shaped sewage collection part (101) at its front end. There are one or more water shovels (1). When there are multiple water shovels, all water shovels (1) are evenly arranged on the rotating mechanism (3) in the circumferential direction.

3. The cleaning equipment according to claim 1, characterized in that, The wastewater recycling system (20) is equipped with a water baffle (10) on the outside. The water baffle (10) is connected to the main support structure (7) of the cleaning equipment, and the bottom of the water baffle (10) extends to the surface to be cleaned (17).

4. The cleaning equipment according to claim 1, characterized in that, The wastewater recycling system (20) also includes a filtration zone, which includes at least a two-stage filtration structure. The filtration zone is equipped with a coarse filter (21) and a fine filter (22). The coarse filter (21) performs primary filtration on the wastewater, and the fine filter (22) performs secondary filtration on the wastewater. The wastewater after secondary filtration enters the clean water zone (221).

5. The cleaning equipment according to claim 4, characterized in that, The filtration zone is located inside the sewage collection tank (2).

6. The cleaning equipment according to claim 5, characterized in that, The sewage collection tank (2) is connected to the sewage tank (23), and the filtration area is located inside the sewage tank (23).

7. The cleaning equipment according to claim 5, characterized in that, The cleaning system (19) includes a clean water zone (241) which is connected to a clean water zone (221). A check valve (25) is installed between the clean water zone (241) and the clean water zone (221). The check valve (25) is opened and closed by pressure difference.

8. The cleaning equipment according to any one of claims 1-7, characterized in that, The cleaning system (19) includes a jet nozzle (9) at an angle that sprays high-pressure water onto the surface (17) to be cleaned at the front end of the water shovel (1); the flow channel (26) at the front end of the jet nozzle (9) has two parallel surfaces.

9. The cleaning equipment according to claim 8, characterized in that, The length (J) of the flow channel (26) at the front end of the nozzle is greater than or equal to the width (H) of the nozzle (9).

10. The cleaning equipment according to claim 8, characterized in that, It also includes a compressed gas nozzle (27) fixed to the jet nozzle (9), the rear end of which is connected to a compressed gas pipeline; the front end flow channel of the compressed gas nozzle (27) has two parallel surfaces.

11. The cleaning equipment according to claim 10, characterized in that, The compressed gas nozzle (27) is one or two, and is set on one side or distributed on both sides of the jet nozzle (9); the flow channel at the front end of the compressed gas nozzle (27) is parallel to the flow channel at the front end of the jet nozzle (9).

12. The cleaning equipment according to claim 10, characterized in that, The width H of the jet nozzle (9) is less than 2 mm, and / or the width (h) of the compressed gas nozzle (27) is less than 2 mm.

13. The cleaning equipment according to any one of claims 1-7, characterized in that, The cleaning system (19) includes a jet nozzle (9), the angle of which the jet nozzle (9) sprays high-pressure water onto the surface (17) to be cleaned at the front end of the water shovel (1); the flow channel (26) at the front end of the jet nozzle (9) has a uniform cross-section structure.

14. The cleaning equipment according to claim 13, characterized in that, A compressed gas nozzle (27) is provided circumferentially on the outside of the jet nozzle (9), and the rear end of the compressed gas nozzle (27) is connected to a compressed gas pipeline; the flow channel at the front end of the nozzle (27) is a structure with a constant cross section.

15. The cleaning equipment according to claim 13, characterized in that, The nozzle (9) of the jet nozzle has a constricted nozzle structure.

16. The cleaning equipment according to claim 14, characterized in that, The nozzle of the compressed gas nozzle (27) has a constricted nozzle structure.

17. The cleaning equipment according to claim 16, characterized in that, The nozzle of the jet nozzle (9) and / or the nozzle of the compressed gas nozzle (27) is a V-shaped flared structure with an elliptical opening.

18. The cleaning equipment according to any one of claims 1-7, characterized in that, The cleaning system (19) includes an integral jet nozzle (9) and a compressed gas nozzle (27), referred to as a "gas-liquid nozzle". The angle of the gas-liquid nozzle is such that high-pressure water is sprayed onto the surface (17) to be cleaned at the front end of the water shovel (1). The gas-liquid nozzle is mounted on a mounting base (28), and the gas-liquid nozzle and the mounting base (28) are angle-adjustable. The mounting base (28) is provided with a first fluid channel (61) and a first compressed gas channel (71). The jet nozzle (9) is provided with a second fluid channel (62) and a second compressed gas channel (72). The second fluid channel (62) on the jet nozzle (9) is connected to the first fluid channel (61) on the mounting base (28), and the second compressed gas channel (72) on the compressed gas nozzle (27) is connected to the first compressed gas channel (71) on the mounting base (28).

19. The cleaning equipment according to claim 18, characterized in that, The angle-adjustable structure is specifically defined as follows: the rear end of the gas-liquid nozzle is a spherical body, and the mounting base (28) is provided with a spherical cavity that is adapted to the spherical body of the gas-liquid nozzle.

20. The cleaning equipment according to claim 18, characterized in that, The angle-adjustable structure is specifically defined as follows: the rear end of the gas-liquid nozzle is a cylinder, and the mounting base (28) is provided with a cylindrical cavity that is adapted to the cylinder of the gas-liquid nozzle.

21. The cleaning equipment according to claim 18, characterized in that, The outlets of the No. 1 fluid channel (61) and / or the No. 1 compressed gas channel (71) on the mounting base (28) are flared trough structures.

22. The cleaning equipment according to claim 18, characterized in that, The rear end of the jet nozzle (9) and / or the rear end of the compressed gas nozzle (27) is a flared groove structure.

23. The cleaning equipment according to any one of claims 1-7, characterized in that, It also includes a brush plate or bristles (103) disposed between the jet nozzle (9) and the water shovel (1).

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