CN214328701U - Spraying and cleaning mechanism for environmental sanitation and environmental sanitation cleaning vehicle - Google Patents

Abstract

The application relates to a spraying and cleaning mechanism for environmental sanitation and an environmental sanitation cleaning vehicle. The environmental sanitation spray cleaning mechanism comprises a medicament box, a metering pump, a water tank, a pressurizing pump, an auxiliary engine, a heater, a spraying assembly and a man-machine interaction interface, wherein the metering pump is in fluid connection with the medicament box, the water tank is arranged separately from the medicament box, the pressurizing pump is in fluid connection with the metering pump and the water tank respectively, the auxiliary engine is used for providing power for the pressurizing pump, the heater is in fluid connection with the downstream of the pressurizing pump, the spraying assembly is in fluid connection with the downstream of the heater, and the man-machine interaction interface is electrically connected with the metering pump, the auxiliary engine and the heater and can be accessed by an operator to activate, deactivate and adjust the metering pump, the auxiliary engine and the heater.

Description

Spraying and cleaning mechanism for environmental sanitation and environmental sanitation cleaning vehicle

Technical Field

The present application relates to the field of urban sanitation cleaning, and more particularly to a spray cleaning mechanism for sanitation and a sanitation cleaning vehicle including the same.

Background

Urban sanitation greatly affects the appearance and appearance of cities and the working and living environment of citizens. The environmental sanitation related to the environmental sanitation is increasingly paid attention, and the range of the required environmental sanitation operation surface, the operation object, the operation content and the like are increased along with the environmental sanitation operation surface. How to reasonably integrate different operation contents, flexibly adapt to different operation objects and improve the coverage area of single-vehicle operation is an increasingly concerned problem in the field of development of sanitation special vehicles.

For example, daily street sanitation typically includes road watering to remove dust, road surface washing, heavy decontamination of special areas (such as roadside trash cans, near sewers), and disinfection (hereinafter "disinfection") of important areas (such as crowded public places). The operation of the plurality of conventional environmental sanitation cleaning measures respectively relates to the use of a plurality of environmental sanitation special devices including a road surface sprinkler, a street flushing vehicle, a garbage can cleaning vehicle, a manual portable sterilization device and the like. The use of multiple equipment needs a large amount of operating personnel on one hand, increases the operating time on the whole, and on the other hand reflects the vehicle equipment all-round comprehensive integration degree low, is difficult to adapt to different cleaning tasks and deals with unexpected special requirements and other problems.

Therefore, there is a need for further improvement of sanitation cleaning equipment.

SUMMERY OF THE UTILITY MODEL

The present application is directed to addressing at least one of the above-mentioned technical concerns and, in particular, to providing an apparatus capable of operating in different operating modes for different operating environments to clean, wash and kill a parcel on demand instantly, comprehensively and quickly.

According to one aspect of the present application, a spray cleaning mechanism for environmental sanitation is provided and is characterized by comprising a chemical tank, a metering pump fluidly connected to the chemical tank, a water tank disposed separately from the chemical tank, a booster pump fluidly connected to the metering pump and the water tank, respectively, an auxiliary engine for powering the booster pump, a heater fluidly connected downstream of the booster pump, a spray assembly fluidly connected downstream of the heater, and a human-machine interface electrically connected to and accessible by an operator for activating, deactivating, and adjusting the metering pump, the auxiliary engine, and the heater.

Optionally, the human machine interface is provided separately at the metering pump, the auxiliary engine and the heater, or the human machine interface is integrated in a device separate from the metering pump, the auxiliary engine and the heater.

Optionally, the human-machine interface comprises a contact or non-contact human-machine interface for an operator to adjust the pumping speed of the metering pump, the rotational speed of the auxiliary engine and the heating temperature of the heater in a continuous or stepwise manner.

Optionally, the dosing pump is removably mounted above the medicament container.

Optionally, check valves are provided between the metering pump and the pressurizing pump and between the water tank and the pressurizing pump.

Optionally, the heater comprises a coil adapted to carry a pressurised fluid and an instant heating element disposed about the coil.

Optionally, the medicament tank, metering pump, heater and booster pump together with the auxiliary engine are distributed in a weight balanced manner around the water tank.

Optionally, the spray assembly has a manual adjustment that selectively changes its outflow cross-sectional area.

According to another aspect of the present application, there is provided a sanitation vehicle, comprising a type ii chassis and a spray washing mechanism for sanitation as described above, wherein a chemical tank, a metering pump, a water tank, a pressure pump, an auxiliary engine and a heater are installed on a girder of the chassis, and a spray bar is provided at a front edge of the chassis, the spray bar being fluidly connected to the pressure pump and constituting a branch flow path different from the heater and the spray assembly.

Optionally, the water tank is centrally located on a girder of the chassis.

According to the spraying cleaning mechanism for the environmental sanitation and the environmental sanitation cleaning vehicle, the heater, the chemical agent box and the metering pump are additionally arranged, and the devices can be selectively started to change the physical parameters and/or the chemical components of the water for spraying operation, so that the physical effect of spraying is strengthened, the chemical and/or biological effect is increased for the spraying cleaning operation, and the beneficial effects of reducing the water for operation, improving the cleaning quality, shortening the operation time, reducing the labor intensity and the like are achieved.

Drawings

Example embodiments of the present application are described below with reference to the drawings. It is understood that the drawings are merely schematic and are not intended to limit the scope of the present application. In the drawings:

FIG. 1 illustrates a schematic block diagram of an arrangement of a spray washer mechanism for sanitation in accordance with the disclosure of the present application; and is

Fig. 2 illustrates a schematic diagram of an arrangement of sanitation trucks according to the disclosure of the present application.

Throughout the drawings, like reference numerals are used to refer to like parts/components.

Detailed Description

The following detailed description is provided merely for the purpose of enabling those skilled in the art to fully understand and utilize the principles of the present disclosure, and is not intended to limit the scope of what is claimed in any way.

As used herein, one element/feature being "upstream" from another element/feature refers to fluid flowing through one element/feature and then to the other element/feature along a certain flow path (which may be a main flow path or a branch flow path). Similarly, one element/feature being "downstream" of another element/feature refers to fluid flowing along a certain flow path through the other element/feature and then to the one element/feature. Also, "fluidly connected" between two components means that the two components are connected such that fluid can flow from one of the two components to the other.

The agent as used in the present application may include various publicly known disinfectants, bactericides, and detergents. The type, proportioning, purchase, storage, etc. of the medicament is arranged in accordance with relevant pharmaceutical use specifications, sanitation work regulations, etc., and implicitly includes the presence of the necessary protective equipment.

FIG. 1 illustrates an example of a spray wash mechanism 1 according to the principles of the present disclosure. As shown in the figures, spray cleaning mechanism 1 generally includes a chemical tank 2, a metering pump 3 fluidly connected to chemical tank 2, a water tank 4 disposed separately from chemical tank 2, a booster pump 5 fluidly connected to each of metering pump 3 and water tank 4, an auxiliary engine 6 powering booster pump 5, a heater 7 fluidly connected downstream of booster pump 5, and a spray assembly 8 fluidly connected downstream of heater 7.

The housing 2 is constructed of a material suitable for holding medicaments, and in particular, disinfectants and sterilants. Preferably, the medicament stored in the medicament container 2 is in liquid form for extraction by the metering pump 3. In the case where the medicament is, for example, 84 disinfectant, the medicament tank may be made of a corrosion resistant material and have good sealing properties to prevent the solution from volatilizing to lose its effectiveness and to harm the health of the operator.

A dosing pump 3 connected to the tank 2 is used to pump the agent from the tank 2 at a specified flow rate to dispense the diluted sterilizing solution at the desired concentration. The metering pump 3 is arranged above the chemical box 2, so that the possibility that chemicals stored in the chemical box leak along the interface between the chemical box and the metering pump under the action of gravity is reduced or avoided, and the corrosion of the chemicals to the metering pump under the non-working state is reduced. Furthermore, this also contributes to a compact and space-saving overall arrangement. Preferably, the metering pump 3 is removably connected to the medicament tank for replacing the medicament tank and the respective medicament.

The metering pump 3 has a tactile man-machine interface which is in electrical and mechanical connection with the rotor of the pump. The human-machine interface can be operated by the operator to activate and deactivate the metering pump and to adjust the rotational speed of the metering pump rotor and thus the flow rate of the pumped medicament in a continuous or stepwise manner. The human-computer interaction interface comprises a contact type rocker switch, a press switch, a coarse adjustment knob, a fine adjustment knob, a gear button, a roller, a display interface and the like, and a non-contact type working condition display interface, an indicator light, an eye tracker, a voice recognizer and the like.

The agent pumped by the metering pump 3 is not directly fed into the water tank 4 but is mixed with the fresh water flowing out of the water tank 4 in the pressure pump 5. To prevent the mixture formed in the pressurizing pump 5 from flowing back to contaminate the medicament source and the water source, as shown in fig. 1, check valves are provided between the pressurizing pump 5 and the metering pump 3 and between the pressurizing pump 5 and the water tank 4. Optionally, a check valve is provided adjacent to one of the pressurizing pump 5, the metering pump 3, and the water tank 4.

The water tank 4 has a certain volume and is used for water storage as its name implies. Preferably, the water tank 4 occupies a larger space than the other components, having a capacity of, for example, 2 kL. Due to this significantly larger volume, the water in the tank is a significant load for the load-bearing structure, and variations in the water storage can affect the mechanical balance of the load-bearing structure. Thus, to avoid structural imbalance due to water level variations in the tank, other components should be distributed around the tank, for example, to maintain the center of gravity of the overall mechanism substantially within the tank and preferably at the centroid of the tank, thereby reducing the impact of water level variations on the load bearing structure. In addition, given that the water in the tank may impart a momentarily large dynamic load to the wall structure of the tank 4 as the spray washer mechanism moves, the tank 4 may have a suitable shape configuration that facilitates damping of dynamic loads and the like.

The booster pump 5 is in this embodiment driven by an auxiliary engine 6 separate from the main engine of e.g. a vehicle. The booster pump 5 and the auxiliary engine 6 may be provided separately or integrally. The auxiliary engine 6, like the metering pump 3, has an accessible man-machine interface that forms an electromechanical connection with the rotor of the booster pump 5. The human-machine interface is operable by an operator to activate and deactivate the booster pump and to adjust the rotational speed of the booster pump rotor and thus the flow rate of the pumped fluid in a substantially continuous or stepped manner. The ratio of the medicament to the water can be adjusted by adjusting the pumping pressure/flow rate of the metering pump 3 and the pressurizing pump 5.

The use of the booster pump 5 enhances the physical removal of dirt, while the addition of the chemical agent further enhances the chemical and/or biological action, making cleaning more comprehensive. The use of the heater 7 may then provide suitable temperature conditions for the chemical and/or biological effects involved.

To be compatible with the pressurization, the heater 7 is a high pressure tankless heater in this embodiment. The liquid pressurized by the pressurizing pump 5 is fed into the coil in the heater 7 and heated by the instant heating means provided around the coil while flowing in the coil. For example, such an instant heating component may use diesel as fuel and heat the pressurized body of water in the coil to one of a plurality of temperatures, such as 30 ℃, 50 ℃, 70 ℃, 100 ℃, and so forth, under the control of the controller. Similarly, the heater 7 also includes a tactile man-machine interface electrically connected to the instant heating component therein. An operator can operate the human-machine interface to activate and deactivate the heater and to adjust the heating temperature in a substantially continuous or stepped manner. In the event that the heater 7 is not activated to heat the fluid, the pressurized fluid in the coil will maintain a temperature substantially similar to the ambient temperature.

The spray assembly 8 is connected at one end to the outflow of the heater 7 and is held at one end by an operator for focused targeted cleaning and disinfection of personnel-intensive wayside utilities (e.g., near bus stops). The operator can adjust the valve opening of the valve by means of an accessible adjusting wrench of the valve arranged near the hand-held end, thereby further fine-tuning the outflow spray intensity of the spray assembly 8 on the basis of the booster pump 5 as required, and the atomizing nozzle used in connection therewith can atomize the sterilizing diluent to meet the requirements of city epidemic prevention and control.

Although only check valves are shown, it is understood that other valves may be optionally positioned between the components shown in the figures to facilitate, for example, component servicing, flow control, etc. In addition, the above-described human-machine interface separately provided in the metering pump 3, the auxiliary engine 6, and the heater 7 may also be integrated as a device electrically connected (including wired or wireless) to the metering pump, the auxiliary engine, and the heater separately.

Fig. 2 illustrates an example of an environmental sanitation truck 10 to which the spray cleaning mechanism 1 of fig. 1 may be applied. The sanitation truck 10 is created by arranging the spray cleaning mechanism 1 on and/or in a class ii chassis. In the example of fig. 2, the sanitation vehicle 10 also includes a spray bar 9 disposed below the leading edge of the chassis. As used herein and elsewhere herein, the spatially relative terms "front" and "rear" are with respect to the direction of vehicle travel, and "lateral" means a direction in the horizontal plane that is perpendicular to the direction of vehicle travel.

The spray bar 9 is fluidly connected downstream of the pressure pump 5 separately from the heater 7, and has a plurality of nozzles evenly distributed in the lateral direction. The number and spacing of the nozzles may be determined based on the exit pressure, height of the spray bar from the ground, nozzle shape, etc. Although 7 nozzles are shown, other numbers are possible. Due to different spraying purposes and objects, the spray pressure of the spray bar 9 can be lower than that of the spray assembly 8 extending from the rear edge of the vehicle chassis. Optionally, the spray assembly 8 of the sanitation truck 10 has a spray pressure of no more than 15 MPa.

In view of the structural features of the two types of structural chassis, the heater 7, the auxiliary engine 6, the booster pump 5, the chemical tank 2 and the water tank 4 are mounted (e.g., bolted) above the girder of the chassis, the metering pump 3 is mounted and preferably removably connected (e.g., bolted) above the chemical tank 2, and the spray assembly 8 is formed by a hand-held spray gun connected by a quick-plug adapter to a piping system provided in the chassis. The water tank 4 is disposed substantially centrally on the girder of the chassis, and the metering pump 3, the chemical tank 2 and the heater 7 are disposed on the front side of the water tank 4, adjacent to the cab, while the booster pump 5 and the auxiliary engine 6 are disposed on the rear side of the water tank 4, adjacent to the hand-held spray gun. In this embodiment, the total weight of the heater 7 (containing water or a diluting solution flowing therethrough), the chemical tank 2, and the metering pump 3 provided on one side of the water tank 4 is substantially the same as the total weight of the booster pump 5 and the auxiliary engine 6 provided on the other side of the water tank 4. However, other arrangements that facilitate structural stability of the chassis frame are possible depending on the particular weight, volume, etc. of the components used. Alternatively, the superstructure of the chassis may be encapsulated with a housing to draw sanitation job identification and to provide an aesthetic appearance to the vehicle.

By utilizing the sanitation cleaning vehicle, the spray rod and the spray gun can be simultaneously actuated to spray the medicament and clean the road along with the vehicle running, thereby efficiently realizing the large-scale quick cleaning, sterilizing and killing operation along the street. In addition, according to different operation tasks, operation contents and different operation objects, the heater can be started, the heating temperature of the heater can be adjusted, the heater can be stopped, the metering pump can be started, the medicament pumping flow of the metering pump can be adjusted, the metering pump can be stopped, and the rotating speed of the auxiliary engine can be adjusted, so that the multifunctional integrated comprehensive sanitation cleaning vehicle is formed by integrating the road surface watering cart (without pressurizing water outlet), the street washing vehicle (without heating water outlet), the garbage can washing vehicle (without sterilizing function) and the manual portable sterilizing equipment, and the conventional sanitation cleaning operation including road watering dust removal, street roadway floor washing, special area powerful decontamination and key area sterilization can be comprehensively realized in a motorized mode.

Although described and illustrated above with reference to certain embodiments of the present application, it is understood that many feasible modifications, variations and substitutions may be made by those skilled in the art without departing from the spirit and teachings of the present application. Such modifications, variations, and alternatives are also intended to be included within the scope of the present application.

Claims (10)

1. A spraying and cleaning mechanism (1) for environmental sanitation is characterized by comprising a chemical box (2), a metering pump (3) in fluid connection with the chemical box (2), a water tank (4) arranged separately from the chemical box (2), a booster pump (5) in fluid connection with the metering pump (3) and the water tank (4) respectively, an auxiliary engine (6) for providing power for the booster pump (5), a heater (7) in fluid connection with the downstream of the booster pump (5), an injection assembly (8) in fluid connection with the downstream of the heater (7), and a man-machine interaction interface which is electrically connected with the metering pump (3), the auxiliary engine (6) and the heater (7) and can be touched by an operator to activate, deactivate and adjust the metering pump (3), the auxiliary engine (6) and the heater (7).

2. A sanitaryware spray washing mechanism (1) according to claim 1, characterized in that the human machine interface is provided separately at the metering pump (3), auxiliary engine (6) and heater (7) or is integrated in a device separate from the metering pump (3), auxiliary engine (6) and heater (7).

3. A sanitaryware spray washing mechanism (1) according to claim 1, wherein the human machine interface comprises a contact or non-contact human machine interface for an operator to adjust the pumping speed of the metering pump (3), the rotation speed of the auxiliary engine (6) and the heating temperature of the heater (7) in a continuous or stepwise manner.

4. A sanitory spray washer mechanism (1) as claimed in any one of claims 1 to 3, characterized in that the metering pump (3) is removably mounted above the chemical tank (2).

5. A spray cleaning device (1) for environmental sanitation according to any one of claims 1 to 3, wherein check valves are provided between the metering pump (3) and the pressurizing pump (5) and between the water tank (4) and the pressurizing pump (5).

6. A spray washer mechanism (1) for environmental sanitation according to any of the claims 1 to 3, characterized in that the heater (7) comprises a coil adapted to carry a pressurized fluid and an instant heating element arranged around the coil.

7. A spray washer mechanism (1) for environmental sanitation according to any of the claims 1 to 3, characterized in that the chemical tank (2), the metering pump (3), the heater (7) and the booster pump (5) together with the auxiliary engine (6) are distributed in a weight-balanced manner around the water tank (4).

8. A sanitary spray washer mechanism (1) according to any of claims 1-3, characterized in that the spray assembly (8) has a manual adjustment to selectively vary its outflow cross-sectional area.

9. A sanitation vehicle (10), characterized in that the sanitation vehicle (10) comprises a type ii chassis and a spray washer mechanism (1) for sanitation according to any one of claims 1 to 8, wherein a chemical tank (2), a metering pump (3), a water tank (4), a pressure pump (5), an auxiliary engine (6) and a heater (7) are installed on a girder of the chassis, and a spray bar (9) is provided at a front edge of the chassis, the spray bar (9) being fluidly connected to the pressure pump (5) and constituting a branch flow path different from the heater (7) and the spray assembly (8).

10. An environmental sanitation vehicle (10) as claimed in claim 9, wherein the water tank (4) is centrally located on a girder of the chassis.

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