Water adding and using system and control method of washing and sweeping vehicle

Abstract

The application discloses a water adding and using system and a control method of a washing and sweeping vehicle, which comprises a water tank mechanism, the water tank mechanism comprising a rear water tank installed at the rear part of the vehicle frame of the washing and sweeping vehicle, a front water tank located at the middle part of the vehicle frame of the washing and sweeping vehicle, and a water using structure connected with the front water tank; a pipeline mechanism, the pipeline mechanism comprising a first pipeline connected with the pressure water, a second pipeline communicated with the first pipeline and connected to the rear water tank, a third pipeline communicated with the first pipeline and the second pipeline through a first three-way pipe, the third pipeline connected to the front water tank through a fourth pipeline via a second three-way pipe, and the third pipeline connected to the water using structure through a fifth pipeline via the second three-way pipe, and a switch device arranged on each of the first pipeline, the second pipeline, the third pipeline, the fourth pipeline and the fifth pipeline; the water adding system can reduce the water adding time, greatly reduce the manual operation strength, improve the work efficiency, avoid the waste of excessive water resources, and simultaneously facilitate the whole vehicle arrangement through the small pipeline communication of the water using system.

Description

Technical Field

[0001] The present invention relates to a sanitation vehicle, in particular to a water adding and water using system and a control method of a washing and sweeping vehicle. Background Art

[0002] A road sweeper is a road cleaning and maintenance vehicle within the road sweeper family. It features multifunctional features such as road cleaning, curb and curbstone scrubbing, low-pressure flushing, and spray dust removal. It is suitable for mechanized cleaning, sweeping, and spray dust reduction on urban roads, highways, plazas, airports, docks, tunnels, bridges, barriers, curbs, and curbstone facades. Because the cleaning process requires large quantities of water, the fresh water tank must be filled before use. This is typically done directly at a roadside fire hydrant.

[0003] Existing cleaning and sweeping vehicles have space layout problems, such as Figure 1 As shown, a front independent water tank and a rear box body are usually provided, rear water tanks are arranged on both sides of the rear box body, and a garbage bin is in the middle. A connecting channel is provided at the bottom of the front end of the rear box body to connect the water tanks on the left and right sides. The front independent water tank and the rear water tank are generally connected by a connecting pipe, and a manual ball valve is placed in the middle of the pipe. When the rear box body is lifted, the connecting pipe is closed by the manual ball valve to prevent the box body from tilting due to the different weights on the left and right sides of the rear water tank.

[0004] The existing washing and sweeping vehicle is filled with water through the water filling port, which is located at the bottom of the rear box. The water in the water tank of the rear box is filled with water first. When the water level is higher than the rear box, it slowly flows into the front independent water tank through the connecting pipe. Because the water in the front independent water tank flows in by gravity using the water pressure generated by the liquid level difference between the front and rear water tanks, the pressure difference is small and the flow rate is slow. After the water tank of the rear box is full, the operator needs to manually turn off the fire hydrant or open it a little to let the water in the rear box slowly flow into the front independent water tank. At this time, the operator needs to repeat the operation, and the water also flows from the rear to the front independent water tank. There is serious waste of water flowing out of the overflow pipe of the tank, and it takes a long time to add water. In addition, since the water used by the sweeper is generally drawn from the front independent water tank to the water-using device, when the water level is too low, the water level sensor is triggered to prompt the operator to stop working. In order to ensure that the liquid level drop height of the front and rear water tanks is consistent, the connecting pipeline needs to use a larger diameter pipe to ensure that the water in the rear tank flows quickly enough to the front independent water tank. The layout of the pipeline of the whole vehicle is relatively difficult. If it is arranged downward, it is easy for the pipeline to touch the ground. If it is arranged upward, it will compress the original structure of the vehicle.

[0005] Therefore, this case aims to provide a water adding and using system and control method for a washing and sweeping vehicle, which can reduce the water adding time through the water adding system, greatly reduce the intensity of manual operation, improve work efficiency, and avoid excessive waste of water resources. At the same time, the water system is connected through small pipes to facilitate the layout of the entire vehicle. Summary of the Invention

[0006] The application provides a water adding and using system and a control method of a washing and sweeping vehicle, which can effectively solve the above problems.

[0007] The application is implemented as follows:

[0008] The water adding and using system of the washing and sweeping vehicle comprises:

[0009] The water tank mechanism comprises a rear water tank installed at the rear part of the washing and sweeping vehicle frame, a front water tank located at the middle part of the washing and sweeping vehicle frame, and a water using structure connected with the front water tank.

[0010] The pipeline mechanism comprises a first pipeline connected with the pressure water, a second pipeline communicated with the first pipeline and connected to the rear water tank, a third pipeline communicated with the first pipeline and the second pipeline through a first three-way pipe, the third pipeline connected to the front water tank through a second three-way pipe and a fourth pipeline, and the third pipeline connected to the water using structure through a second three-way pipe and a fifth pipeline, wherein the first pipeline, the second pipeline, the third pipeline, the fourth pipeline and the fifth pipeline are all provided with on-off devices.

[0011] In the water adding stage, the third pipeline is closed, the pressure water is communicated to the second pipeline through the first pipeline, the rear water tank starts to store water, after the rear water tank stores water completely, the second pipeline is closed, the third pipeline and the fourth pipeline are opened, and the front water tank starts to store water, after the front water tank and the rear water tank store water completely, the first pipeline is closed.

[0012] In the water using stage, the fourth pipeline is closed, the rear water tank and the water using structure are communicated through the second pipeline and the third pipeline, and then water is supplied to the water using structure, when the rear water tank is almost used up, the second pipeline and the third pipeline are closed, the fourth pipeline is opened to communicate the front water tank and the water using structure, and then water is supplied to the water using structure.

[0013] As a further improvement, the first pipeline is provided with a pressure sensor, in the water adding stage, after the pressure water flows into the first pipeline, the pressure sensor drives the on-off device of the first pipeline to open.

[0014] As a further improvement, the bottom of the inside of the rear water tank is provided with a first water level sensor, and the top of the inside of the rear water tank is provided with a second water level sensor, in the water adding stage, after the first water level sensor detects that the water level reaches the first water level sensor, a signal is sent to the control end, the control end drives the on-off device of the second pipeline to close the second pipeline, and the on-off devices of the third pipeline and the fourth pipeline are opened to make the water flow into the front water tank, in the water using stage, after the second water level sensor detects that the water level drops to the position of the second water level sensor, a signal is sent to the control end, the control end drives the on-off devices of the second pipeline and the third pipeline to close the second pipeline and the third pipeline, and the on-off devices of the fourth pipeline and the fifth pipeline are opened to make the water of the front water tank flow into the water using structure.

[0015] As a further improvement, the bottom of the front water tank is provided with a third water level sensor, and the top of the front water tank is provided with a fourth water level sensor. During the water filling stage, when the third water level sensor senses water, the pressure water stops filling, and during the water using stage, when the fourth water level sensor does not sense water, the water using structure stops working and prompts water replenishment.

[0016] As a further improvement, the outer side of the rear water tank is provided with a balance structure connected to the washing and sweeping vehicle frame, the balance structure comprises a first hinge provided on the outer side wall of the rear water tank, a second hinge mounted on the washing and sweeping vehicle frame, and a hydraulic push rod connected between the first hinge and the second hinge.

[0017] As a further improvement, the top of the rear water tank is provided with at least two groups of pull rivet structures, the pull rivet structure comprises a pull rivet frame locked on the top of the rear water tank, a steel wire rope locked on the pull rivet frame, a winch welded on the front end of the washing and sweeping vehicle frame, and a rotating motor inserted on the winch, and the rotating motor is electrically connected with the first water level sensor and the second water level sensor.

[0018] The application also provides a control method of the water filling and using system of the washing and sweeping vehicle, which applies the water filling and using system of the washing and sweeping vehicle, and comprises the following steps.

[0019] Step one: water filling of the rear water tank; connecting the pressure water to the first pipeline, opening the on-off devices of the first pipeline and the second pipeline, closing the on-off device of the third pipeline, and replenishing water to the rear water tank until the second water level sensor senses water and the on-off device of the second pipeline is closed;

[0020] Step two: water filling of the front water tank; while the on-off device of the second pipeline is closed after the second water level sensor senses water, the on-off devices of the third pipeline and the fourth pipeline are opened and the fifth pipeline is closed, so that water is replenished to the front water tank until the on-off devices of the first pipeline and the fourth pipeline are closed after the fourth water level sensor senses water;

[0021] Step three: water using of the rear water tank; starting the water using structure, opening the on-off device of the second pipeline, so that the water in the rear water tank enters the water using structure and is output to the outside, and the on-off device of the second pipeline is closed after the first water level sensor does not sense water;

[0022] Step four: water using of the front water tank; after the on-off device of the second pipeline is closed after the first water level sensor does not sense water, the on-off device of the fourth pipeline is started, so that the water in the front water tank enters the water using structure and is output to the outside, and the driver is prompted to replenish water after the third water level sensor does not sense water.

[0023] As a further improvement, it also includes: when the washing and sweeping vehicle does not use water or the rear water tank is not turned over, the on-off devices of the first pipeline, the second pipeline and the fifth pipeline are turned off, and the on-off devices of the third pipeline and the fourth pipeline are turned on.

[0024] The beneficial effects of the present application are:

[0025] The present application can store water in the rear water tank first during the water filling stage, and then store water in the front water tank after the water filling pipeline of the rear water tank is closed, so that the rear water tank and the front water tank can be filled with water without any hindrance, without the need for a long waiting process, reducing the time for the water in the rear water tank to flow to the front water tank by gravity, and the total water filling time is shorter than that of the traditional vehicle.

[0026] After the rear water tank and the front water tank are filled with water, the intermediate pipeline between the front water tank and the rear water tank is opened, allowing some water to stay in the middle position.

[0027] During water use, the present application first uses the rear water tank to supply water to the water use structure, which can quickly make the vehicle free from rear axle imbalance and reduce rear wheel abnormal wear, and then uses the front water tank to supply water to the water use structure when the rear water tank is almost empty, thereby reasonably utilizing the water in the front water tank and the rear water tank.

[0028] The present application sets a pressure sensor on the first pipeline, which senses the water inlet pressure when connecting to a fire hydrant or the like, and automatically opens the on-off device on the first pipeline to complete automatic water filling.

[0029] Since the outside personnel cannot know the situation in the water tank, the water filling situation and the water using situation of the front water tank and the rear water tank cannot be known, and the water situation cannot be adjusted naturally. To this end, the first water level sensor and the second water level sensor are arranged in the rear water tank. The second water level sensor is located at the top inside the rear water tank. When the second water level sensor senses water, it indicates that the rear water tank is close to full load at this time, and water cannot be filled again. Therefore, the on-off device of the second pipeline is closed in time, and the water inlet end is transferred to the front water tank. The first water level sensor is located at the bottom inside the rear water tank. When the first water level sensor does not sense water, it indicates that the rear water tank is about to be used up at this time, and the front water tank needs to be switched as soon as possible.

[0030] Similarly, the third water level sensor and the fourth water level sensor are arranged in the front water tank. The fourth water level sensor is located at the top inside the front water tank. When the fourth water level sensor senses water, it indicates that the front water tank is close to full load at this time, and water cannot be filled again. The on-off device of the fourth pipeline is closed in time, and part of the water enters the third pipeline, and then the first pipeline is closed, completing the water filling action. The third water level sensor is located at the bottom inside the front water tank. When the third water level sensor does not sense water, it indicates that there is no water in the rear water tank and the front water tank at this time, and the water supply structure cannot provide water. The driver is prompted to fill water in time. Through the electrical cooperation of the multiple sensors in the rear water tank and the front water tank and the on-off devices in the pipelines, intelligent water filling, intelligent water using and intelligent prompting can be realized without manual care. Compared with manual monitoring and switching, it is more accurate and faster in response, and can best utilize water.

[0031] The rear water tank in the present application also needs to follow the lifting of the garbage can, although the above structure can greatly balance and share the tilting force of the rear water tank. In order to completely ensure the balance effect of the left and right rear water tanks, balance structures are arranged on the side of the left and right rear water tanks. The balance structure can adjust the rotation angle and the extension length according to the overturning of the water tank, so as to balance the two rear water tanks. Even if there is a slight weight deviation, it is not easy to cause side turning or shaking.

[0032] After the rear water tank is fully loaded, the load of the rear water tank itself is large, and the full load of garbage puts a lot of pressure on the entire rear frame and rear wheel, which can easily cause damage to the rear axle. To this end, the present application proposes to arrange a pull rivet structure at the top position of the rear water tank. The pull rivet structure is directly extended and fixed to the front end position of the frame. In the case of full load of the rear water tank, the rotating motor of the pull rivet structure pulls the pull rivet frame through the winch and steel wire rope, so that part of the weight of the full load of the rear water tank can be dispersed to the front end position of the frame. As the water in the rear water tank is used, the tension provided by the rotating motor will also decrease, avoiding excessive tension that can excessively damage the steel wire rope and the rotating motor. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor based on these drawings.

[0034] Figure 1 is a structural schematic diagram of a water adding and using system of a washing and sweeping vehicle in the prior art.

[0035] Figure 2 is a structural schematic diagram of a water adding and using system of a washing and sweeping vehicle according to the present application.

[0036] Figure 3 is a structural schematic diagram of a balance structure according to the present application.

[0037] Figure 4 is a structural schematic diagram of a pull-riveting structure according to the present application.

[0038] Figure 5 is a flowchart of a control method of a water adding and using system of a washing and sweeping vehicle according to the present application. DETAILED DESCRIPTION

[0039] In order to make the embodiments of the present application, all of which belong to the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only to represent selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0040] In the description of the present application, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating the order of the purpose, technical solutions and advantages. The technical solutions in the embodiments of the present application will be described clearly and completely in the following, combined with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. Therefore, the features with "first", "second" can be explicitly or implicitly included one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0041] REFERENCE Figures 2 to 5As shown, a water adding and using system of a washing and sweeping vehicle comprises a water tank mechanism, the water tank mechanism comprising a rear water tank 10 mounted at the rear of the washing and sweeping vehicle frame, a front water tank 20 located at the middle of the washing and sweeping vehicle frame, and a water using structure 30 connected with the front water tank 20; a pipeline mechanism, the pipeline mechanism comprising a first pipeline 40 connected with the pressure water, a second pipeline 50 communicated with the first pipeline 40 and connected to the rear water tank 10, a third pipeline 60 communicated with the first pipeline 40 and the second pipeline 50 through a first three-way pipe, the third pipeline 60 connected to the front water tank 20 through a second three-way pipe and a fourth pipeline 70, and the third pipeline 60 connected to the water using structure 30 through a second three-way pipe and a fifth pipeline 80, and each of the first pipeline 40, the second pipeline 50, the third pipeline 60, the fourth pipeline 70 and the fifth pipeline 80 is provided with an on-off device; in the water adding stage, at this time the third pipeline 60 is in a closed state, the pressure water is communicated to the second pipeline 50 through the first pipeline 40, and the rear water tank 10 starts to store water, after the rear water tank 10 completes the water storage, the second pipeline 50 is closed, the third pipeline 60 and the fourth pipeline 70 are opened, and the front water tank 20 starts to store water, and after the front water tank 20 and the rear water tank 10 complete the water storage, the first pipeline 40 is closed; in the water using stage, the fourth pipeline 70 is closed, the rear water tank 10 and the water using structure 30 are communicated through the second pipeline 50 and the third pipeline 60 to supply water to the water using structure 30, when the rear water tank 10 is almost used up, the second pipeline 50 and the third pipeline 60 are closed, and the fourth pipeline 70 is opened to communicate the front water tank 20 and the rear water using structure 30 to supply water to the water using structure 30.

[0042] In the embodiment, the number of the rear water tanks 10 is also set to two, and the middle of the two rear water tanks 10 is also a garbage can, and the rear water tanks 10 will rise and fall with the garbage can.

[0043] In the embodiment, the pipeline structure is divided into five sections, which are the first pipeline 40, the second pipeline 50, the third pipeline 60, the fourth pipeline 70 and the fifth pipeline 80, each of which is designed separately and has a separate control system, that is, each has a separate on-off device for opening and closing the pipeline, wherein the on-off system can be an electric control element such as a solenoid valve, as long as it can switch the on-off state according to the electric signal, in the embodiment, the on-off devices corresponding to the first pipeline 40, the second pipeline 50, the third pipeline 60, the fourth pipeline 70 and the fifth pipeline 80 are respectively denoted as K1, K2, K3, K4 and K5 in the control system. Figure 5

[0044] ​In the water inlet stage, the embodiment adopts the method of first storing water in the rear water tank 10, then closing the water inlet pipeline of the rear water tank 10 to store water in the front water tank 20, so that the rear water tank 10 and the front water tank 20 can be stored without hindrance, without long waiting process, reducing the time of water flow through gravity from the rear water tank 10 to the front water tank 20, and the total water filling time is shorter than that of the traditional vehicle. Due to the shortening of the water filling time, even if the pipe diameter of the pipeline is reduced, the water storage time is shorter than that of the traditional vehicle.

[0045] After the rear water tank 10 and the front water tank 20 are filled with water, the intermediate pipeline between the front water tank 20 and the rear water tank 10 is opened, so that part of the water can stay in the middle position. When the rear water tank 10 is lifted with the garbage can, the water in the middle pipeline can balance the box body, avoiding the phenomenon of tilting of the box body. Since the water outlet route of the rear water tank 10 is closed at this time, it is not easy to appear the phenomenon of unbalanced water body.

[0046] In the water using process, the embodiment first uses the rear water tank 10 to supply water to the water using structure 30. The water in the rear water tank 10 can quickly make the vehicle get rid of the situation of rear axle overweight, reducing the abnormal wear of the rear wheel. When the rear water tank 10 is about to be used up, the front water tank 20 is used to supply water to the water using structure 30, so as to reasonably use the water in the front water tank 20 and the rear water tank 10.

[0047] Further, the first pipeline 40 is provided with a pressure sensor 41. In the water inlet stage, the pressure sensor 41 drives the on-off device of the first pipeline 40 to open after the pressure water flows into the first pipeline 40. In the embodiment, the pressure sensor 41 is arranged on the first pipeline 40. When the pressure water is connected to the fire hydrant, the pressure sensor 41 senses the water inlet pressure and automatically opens the on-off device of the first pipeline 40, so as to complete the automatic water inlet. Once the pressure water loses power, it means that the valve of the fire hydrant is closed by the external personnel, which means that the water inlet is completed. The pressure sensor 41 automatically closes the on-off device of the first pipeline 40 when no pressure is detected, so as to realize the intelligent opening and closing of the water inlet end.

[0048] Since the outside personnel cannot know the condition in the water tank, the water adding condition and water using condition of the rear water tank 10 and the front water tank 20 cannot be known, and the water condition cannot be adjusted naturally. For this, the first water level sensor 11 and the second water level sensor 12 are arranged in the rear water tank 10. The bottom inside the rear water tank 10 is provided with the first water level sensor 11, and the top inside the rear water tank 10 is provided with the second water level sensor 12. In the water adding stage, the first water level sensor 11 detects that the water level reaches the first water level sensor 11, sends a signal to the control end, the control end drives the on-off device of the second pipeline 50 to close the second pipeline 50, and opens the on-off device of the third pipeline 60 and the fourth pipeline 70 to make the water flow into the front water tank 20. In the water using stage, the second water level sensor 12 detects that the water level drops to the position of the second water level sensor 12, sends a signal to the control end, the control end drives the on-off device of the second pipeline 50 and the third pipeline 60 to close the second pipeline 50 and the third pipeline 60, and opens the on-off device of the fourth pipeline 70 and the fifth pipeline 80 to make the water in the front water tank 20 flow into the water using structure 30. The second water level sensor 12 is located at the top inside the rear water tank 10. When the second water level sensor 12 senses water, it indicates that the rear water tank 10 is close to the full load state at this time, and cannot be filled with water. Therefore, the on-off device of the second pipeline 50 is closed in time, and the water adding end is transferred to the front water tank 20. The first water level sensor 11 is located at the bottom inside the rear water tank 10. When the first water level sensor 11 does not sense water, it indicates that the rear water tank 10 is about to be used up at this time, and needs to be switched to the front water tank 20 as soon as possible.

[0049] Similarly, the third water level sensor 21 and the fourth water level sensor 22 are arranged in the front water tank 20, the third water level sensor 21 is arranged at the bottom of the inside of the front water tank 20, and the fourth water level sensor 22 is arranged at the top of the inside of the front water tank 20, in the water filling stage, when the third water level sensor 21 senses water, the pressure water stops filling, in the water using stage, when the fourth water level sensor 22 does not sense water, the water using structure 30 stops working and prompts water replenishment, wherein the fourth water level sensor 22 is arranged at the top of the inside of the front water tank 20, when the fourth water level sensor 22 senses water, it indicates that the front water tank 20 is close to a full load state at this time, and water cannot be filled, the on-off device of the fourth pipeline 70 is closed in time, and after part of the water enters the third pipeline 60, the first pipeline 40 is closed, and the whole water filling action is completed, and the third water level sensor 21 is arranged at the bottom of the inside of the front water tank 20, when the third water level sensor 21 does not sense water, it indicates that there is no water in the rear water tank 10 or the front water tank 20 at this time, and the water using structure 30 cannot be provided with water, prompting the driver to replenish water in time, through the electrical cooperation of the upper and lower multiple sensors in the rear water tank 10 and the front water tank 20 and the on-off device in the pipeline, intelligent water filling, intelligent water using and intelligent prompting can be realized without manual care, and compared with manual monitoring and switching, it is more accurate and has a faster response speed, and water can be best utilized.

[0050] The rear water tank 10 in the present application needs to follow the garbage can to rise and fall, although the above structure can greatly balance and share the force of tilting the rear water tank 10, in order to completely guarantee the balance effect of the left and right rear water tanks 10, the outside of the rear water tank 10 in the embodiment is provided with a balance structure 1 connected to the washing and sweeping vehicle frame, the balance structure 1 comprises a first hinge 101 arranged on the outer side wall of the rear water tank 10, a second hinge 102 mounted on the washing and sweeping vehicle frame, and a hydraulic push rod 103 connected between the first hinge 101 and the second hinge 102, the balance structure 1 can adjust the rotation angle and the extension length according to the overturning of the water tank, so as to balance the two rear water tanks 10, even if there is a slight weight deviation, the phenomenon of side turning or shaking is not easy to occur, and the corresponding hydraulic push rod 103 can be selected according to the specific bearing weight of the rear water tank 10.

[0051] After the rear water tank 10 is fully loaded, due to the large load capacity of the rear water tank 10 itself, coupled with the full load of garbage, the pressure on the entire rear frame and the rear wheel is very large, which can easily cause damage to the rear axle. To this end, at least two groups of rivet structures 2 are provided on the top of the rear water tank 10 of this embodiment, and the rivet structure 2 includes a rivet frame 201 locked on the top of the rear water tank 10, a steel wire rope 202 locked on the rivet frame 201, a winch 203 welded to the front end of the washing and sweeping vehicle frame, and a rotating motor 204 plugged into the winch 203. The rotating motor 204 is electrically connected to the first water level sensor 11 and the second water level sensor 12. The rivet structure 2 will be directly extended and fixed to the front end of the frame. When the rear water tank 10 is fully loaded, the rotating motor 204 of the rivet structure 2 will pull the rivet frame 201 through the winch 203 via the wire rope 202, so that part of the weight of the fully loaded rear water tank 10 can be distributed to the front end of the frame. As the water in the rear water tank 10 is used, the tension provided by the rotating motor 204 will also decrease, avoiding excessive tension that damages the wire rope 202 and the rotating motor 204. In actual use, the tension provided by the wire rope 202 is not always constant. For example, when the rear water tank 10 and the trash can are fully loaded, the entire rear wheel and rear axle are The pressure on the system is the greatest, and most of the weight of the entire vehicle is concentrated on the rear end, which is relatively unsafe for the entire vehicle's travel or working process. Therefore, in this embodiment, the rotating motor 204 is electrically connected to the first water level sensor 11 and the second water level sensor 12. When the second water level sensor 12 detects the water level, the rotating motor 204 is working at full load, that is, part of the force of the rear water tank 10 is dispersed to the front end position of the frame, and the front and rear balance is promoted as much as possible. When the second water level sensor 12 does not sense water, it means that the rear water tank 10 is gradually using water, the water level will slowly drop, and the pressure on the rear wheels and rear axle system will gradually decrease. For the life of the steel wire rope 202 and the rotating motor 204 itself, the power of the rotating motor 204 can be gradually reduced. For example, the power ratio can be reduced by 5% within 30 seconds in a periodic attenuation manner to reduce the force dispersed at the front end. Until the first water level sensor 11 senses water, it means that the water in the rear water tank 10 is about to be used up. Then, the balancing force applied by the rivet structure 2 can be safely removed, and the rear end of the frame can bear the weight of the trash can and the rear water tank 10 by itself. The rivet structure 2 can change its own usage state as the load-bearing changes, which can achieve the purpose of balance and maximize its own service life.

[0052] In fact, the design of the pull-riveting structure 2 can not only balance the front and rear frames, but also can be linked with the balancing structure 1, that is, the balancing structure 1 can provide support at both ends when the garbage can and the rear water tank 10 are tilted, and the pull-riveting structure 2 can provide fixed support force at the middle part, so that the two balancing structures 1 and the pull-riveting structure 2 form a triangular shape, thereby balancing the rear water tank 10.

[0053] The application further provides a control method of a water filling and using system of the washing and sweeping vehicle.

[0054] Step one: water filling of the rear water tank 10; the pressurized water is connected to the first pipeline 40, the on-off devices of the first pipeline 40 and the second pipeline 50 are opened, the on-off device of the third pipeline 60 is closed, the rear water tank 10 is water filled until the second water level sensor 12 senses water and the on-off device of the second pipeline 50 is closed;

[0055] Step two: water filling of the front water tank 20; the on-off devices of the third pipeline 60 and the fourth pipeline 70 are opened and the on-off device of the fifth pipeline 80 is closed at the same time when the second water level sensor 12 senses water, so that the water is filled into the front water tank 20 until the fourth water level sensor 22 senses water and the on-off devices of the first pipeline 40 and the fourth pipeline 70 are closed;

[0056] Step three: water using of the rear water tank 10; the water using structure 30 is started and the on-off device of the second pipeline 50 is opened, so that the water in the rear water tank 10 enters the water using structure 30 and is output to the outside until the first water level sensor 11 senses no water and the on-off device of the second pipeline 50 is closed;

[0057] Step four: water using of the front water tank 20; the on-off device of the fourth pipeline 70 is started after the on-off device of the second pipeline 50 is closed when the first water level sensor 11 senses no water, so that the water in the front water tank 20 enters the water using structure 30 and is output to the outside until the third water level sensor 21 senses no water and prompts the driver to fill water.

[0058] Further, when the washing and sweeping vehicle does not use water or the rear water tank 10 is not turned over, the on-off devices of the first pipeline 40, the second pipeline 50 and the fifth pipeline 80 are closed, and the on-off devices of the third pipeline 60 and the fourth pipeline 70 are opened.

[0059] The above only describes the preferred embodiments of the application and is not used to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A water supply and water use system for a washing and sweeping vehicle, characterized in that: include: A water tank mechanism, the water tank mechanism comprising a rear water tank (10) mounted on the rear portion of a washing and sweeping vehicle frame, a front water tank (20) located in the middle portion of the washing and sweeping vehicle frame, and a water use structure (30) connected to the front water tank (20); A pipeline mechanism, the pipeline mechanism comprising a first pipeline (40) connected to pressurized water, a second pipeline (50) communicating with the first pipeline (40) and connected to the rear water tank (10), a third pipeline (60) communicating with the first pipeline (40) and the second pipeline (50) through a first tee pipe, the third pipeline (60) being connected to the front water tank (20) through a fourth pipeline (70) via a second tee pipe, the third pipeline (60) being connected to the water-using structure (30) through a fifth pipeline (80) via a second tee pipe, and the first pipeline (40), the second pipeline (50), the third pipeline (60), the fourth pipeline (70), and the fifth pipeline (80) being provided with an on-off device; During the water inlet stage, the third pipeline (60) is in a closed state, and the pressurized water is connected to the second pipeline (50) through the first pipeline (40), and the rear water tank (10) begins to store water. After the rear water tank (10) has completed water storage, the second pipeline (50) is closed, the third pipeline (60) and the fourth pipeline (70) are opened, and water storage in the front water tank (20) begins. After the front water tank (20) and the rear water tank (10) have completed water storage, the first pipeline (40) is closed. During the water-using stage, the fourth pipeline (70) is closed, and the rear water tank (10) and the water-using structure (30) are connected through the second pipeline (50) and the third pipeline (60) to supply water to the water-using structure (30). When the water in the rear water tank (10) is completely used up, the second pipeline (50) and the third pipeline (60) are closed, and the fourth pipeline (70) is activated to connect the front water tank (20) and the rear water-using structure (30) to supply water to the water-using structure (30).

2. A water supply and water use system for a washing and sweeping vehicle according to claim 1, characterized in that: The first pipeline (40) is provided with a pressure sensor (41). During the water inlet phase, after pressurized water flows into the first pipeline (40), the pressure sensor (41) drives the on-off device of the first pipeline (40) to open.

3. The water supply and use system of a washing and sweeping vehicle according to claim 1, characterized in that: A first water level sensor (11) is provided at the bottom of the rear water tank (10), and a second water level sensor (12) is provided at the top of the rear water tank (10). In the water inlet stage, after the first water level sensor (11) detects that the water level reaches the first water level sensor (11), a signal is sent to the control end. The control end drives the on-off device of the second pipeline (50) to close the second pipeline (50), and opens the on-off devices of the third pipeline (60) and the fourth pipeline (70) to allow water to flow into the front water tank (20). In the water use stage, after the second water level sensor (12) detects that the water level drops to the position of the second water level sensor (12), a signal is sent to the control end. The control end drives the on-off devices of the second pipeline (50) and the third pipeline (60) to close the second pipeline (50) and the third pipeline (60), and opens the on-off devices of the fourth pipeline (70) and the fifth pipeline (80) to allow water in the front water tank (20) to flow into the water use structure (30).

4. A water supply and water use system for a washing and sweeping vehicle according to claim 3, characterized in that: A third water level sensor (21) is provided at the bottom of the front water tank (20), and a fourth water level sensor (22) is provided at the top of the front water tank (20). In the water adding stage, when the third water level sensor (21) senses water, the pressurized water stops entering. In the water using stage, when the fourth water level sensor (22) does not sense water, the water using structure (30) stops operating and prompts water replenishment.

5. The water supply and use system of a washing and sweeping vehicle according to claim 1, characterized in that: The outer side of the rear water tank (10) is provided with a balancing structure (1) connected to the washing and sweeping vehicle frame, and the balancing structure (1) includes a first hinge (101) provided on the outer side wall of the rear water tank (10), a second hinge (102) installed on the washing and sweeping vehicle frame, and a hydraulic push rod (103) connected between the first hinge (101) and the second hinge (102).

6. The water supply and use system of a washing and sweeping vehicle according to claim 3, characterized in that: At least two groups of rivet structures (2) are provided on the top of the rear water tank (10), and the rivet structure (2) includes a rivet frame (201) locked on the top of the rear water tank (10), a steel wire rope (202) locked on the rivet frame (201), a winch (203) welded to the front end of the washing and sweeping vehicle frame, and a rotating motor (204) plugged into the winch (203), wherein the rotating motor (204) is electrically connected to the first water level sensor (11) and the second water level sensor (12).

7. A method for controlling a water supply and water use system of a washing and sweeping vehicle, using a water supply and water use system of a washing and sweeping vehicle according to any one of claims 1 to 6, characterized in that: The steps include: Step 1: Filling the rear water tank (10); connecting pressurized water to the first pipeline (40), opening the on-off devices of the first pipeline (40) and the second pipeline (50), disconnecting the on-off device of the third pipeline (60), and replenishing water to the rear water tank (10) until the second water level sensor (12) senses water and then disconnects the on-off device of the second pipeline (50); Step 2: water is introduced into the front water tank (20); after the second water level sensor (12) senses water, the second pipe (50) is disconnected, and at the same time, the on-off device of the third pipe (60) and the fourth pipe (70) is opened and the fifth pipe (80) is disconnected, so that water is replenished into the front water tank (20), until the fourth water level sensor (22) senses water and the on-off device of the first pipe (40) and the fourth pipe (70) is disconnected; Step 3: The rear water tank (10) uses water; the water-using structure (30) is activated, and the on-off device of the second pipeline (50) is turned on, so that the water in the rear water tank (10) enters the water-using structure (30) and is output to the outside, until the first water level sensor (11) no longer senses water, and then the on-off device of the second pipeline (50) is turned off; Step 4: using water from the front water tank (20); disconnecting the on-off device of the second pipeline (50) after the first water level sensor (11) senses no water, and then starting the on-off device of the fourth pipeline (70) to allow the water in the front water tank (20) to enter the water-using structure (30) and output to the outside, until the third water level sensor (21) senses no water and prompts the driver to add water.

8. The method for controlling the water supply and water use system of a washing and sweeping vehicle according to claim 7, characterized in that: Also includes: When the washing and sweeping vehicle is not using water or the rear water tank (10) is not turned over, the on-off devices of the first pipeline (40), the second pipeline (50), and the fifth pipeline (80) are disconnected, and the on-off devices of the third pipeline (60) and the fourth pipeline (70) are opened.

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