CN220888457U - Road sweeper - Google Patents

Abstract

The utility model discloses a road sweeper, which comprises: waterway system and housing, waterway system includes: the water tank, the switch valve, the water pump and the nozzle are connected in series, and the water pump is linked with the switch valve; the housing is provided with a detachable mounting plate, and the switch valve and the water pump are arranged in the housing and are opposite to the mounting plate. According to the road sweeper disclosed by the embodiment of the utility model, the water pump and the switch valve are arranged to be linked, so that the operation of an operator is facilitated to spray water on the dust-containing ground, the reliability of a waterway system can be improved, and in addition, the switch valve and the water pump are arranged in the housing and are arranged at the position close to the mounting plate in the housing, so that the road sweeper can be overhauled conveniently when the road sweeper breaks down.

Description

Road sweeper

Technical Field

The utility model relates to the technical field of road cleaning equipment, in particular to a road sweeper.

Background

The road sweeper is a mechanical device which is mainly used for sweeping public places such as roads, squares, parking lots and the like. When the road sweeper cleans the pavement with dust, a large amount of dust can be raised, and a water spray dust fall system can be arranged on part of the small road sweeper, so that water mist can be sprayed on the pavement when necessary, and secondary pollution to the air in the pavement cleaning process can be avoided.

In the related art, a diaphragm water pump is generally used as a power source of a waterway system of a small road sweeper, the diaphragm water pump has no water locking function, water can be always leaked when the water pump is turned off, a manual water stop valve is usually arranged at the upstream, and the water can be locked by twisting a handle of the water stop valve; in addition, each spare part of water route is installed in the rear deck in general, and the rear deck is wrapped up by the housing covering, and the whole housing needs to be disassembled at first when overhauling the water route, then the spare part of other shielding operation (as shown in fig. 4 and 5, the spare part of other systems is hidden in fig. 5) just can carry out the maintenance operation, and is time consuming and laborious.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, an object of the present utility model is to provide a road sweeper, which is convenient for operators to control the waterway system and is convenient for maintenance.

According to an embodiment of the utility model, a road sweeper comprises: waterway system and housing, waterway system includes: the water tank, the switch valve, the water pump and the nozzle are connected in series, and the water pump is linked with the switch valve; the housing is provided with a detachable mounting plate, and the switch valve and the water pump are arranged in the housing and at a position close to the mounting plate in the housing.

According to the road sweeper disclosed by the embodiment of the utility model, the water pump and the switch valve are arranged to be linked, so that the operation of an operator is facilitated to spray water on the dust-containing ground, the reliability of a waterway system can be improved, and in addition, the switch valve and the water pump are arranged in the housing and are arranged at the position close to the mounting plate in the housing, so that the road sweeper can be overhauled conveniently when the road sweeper breaks down.

In addition, the road sweeper according to the above embodiment of the present utility model may further have the following additional technical features:

in some embodiments, the on-off valve is connected upstream of the water pump.

In some embodiments, the waterway system further comprises a filter, the filter being in series upstream of the water pump and the switch valve; the filter is arranged in the housing and is arranged in the housing at a position close to the mounting plate.

In some embodiments, the water tank, the filter, the switch valve and the water pump are sequentially connected in series, two ends of the filter are respectively connected with a first quick connector and a second quick connector, two ends of the switch valve are respectively connected with a third quick connector and a fourth quick connector, and the first quick connector, the second quick connector, the third quick connector and the fourth quick connector are suitable for being connected or disconnected with a water pipe in a plugging manner;

The waterway system further comprises a first water pipe, a second water pipe and a third water pipe, one end of the first water pipe is connected with the water tank, the other end of the first water pipe is connected with the first quick connector, one end of the second water pipe is connected with the second quick connector, the other end of the second water pipe is connected with the third quick connector, one end of the third water pipe is connected with the fourth quick connector, and the other end of the third water pipe is connected with the water pump.

In some embodiments, a reducer union is connected between the water pump and the nozzle, the waterway system further comprises a fourth water pipe and a fifth water pipe, one end of the fourth water pipe is connected with the water pump, the other end of the fourth water pipe is connected with the reducer union, one end of the fifth water pipe is connected with the reducer union, the other end of the fifth water pipe is connected with the nozzle, and the pipe diameter of the fourth water pipe is larger than the pipe diameter of the fifth water pipe.

In some embodiments, the waterway system further includes a three-way joint, a sixth water pipe, and a seventh water pipe, the three-way joint being connected to the other end of the fifth water pipe, one end of the sixth water pipe, and one end of the seventh water pipe, respectively, the other ends of the sixth water pipe and the seventh water pipe being connected to the nozzle, respectively.

In some embodiments, the on-off valve is a normally closed valve;

Or the switch valve is a one-way valve, and the opening pressure of the one-way valve is larger than the water pressure of the water stored in the water tank to the one-way valve and smaller than the output pressure of the water pump;

Or, the switch valve is an electromagnetic valve.

In some embodiments, the road sweeper further comprises: the control key is in signal transmission with the switch valve and the water pump, and synchronously controls the water pump and the switch valve.

In some embodiments, a mounting bracket is provided within the housing, and the on-off valve and the water pump are mounted on the mounting bracket.

In some embodiments, at least a portion of the tank is disposed outside of and above the housing.

Drawings

Fig. 1 is a schematic view of a road sweeper according to an embodiment of the present utility model.

Fig. 2 is an enlarged schematic view at circle a in fig. 1.

Fig. 3 is an enlarged schematic view at circle B in fig. 1.

Fig. 4 is a schematic diagram of a road sweeper in the related art.

Fig. 5 is a schematic view of a related art road sweeper, in which a water pump and a water valve are shown.

Reference numerals:

the road sweeper 100, the waterway system 10, the water tank 11, the switch valve 12, the water pump 13, the nozzle 14, the filter 15, the first quick connector 161, the second quick connector 162, the third quick connector 163, the fourth quick connector 164, the reducer 165, the three-way connector 166, the first water pipe 171, the second water pipe 172, the third water pipe 173, the fourth water pipe 174, the fifth water pipe 175, the sixth water pipe 176, the seventh water pipe 177, the mounting bracket 18, the housing 20, and the mounting plate 21.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1 to 3, a road sweeper 100 according to an embodiment of the present utility model may include a waterway system 10, wherein the waterway system 10 includes a water tank 11, a switch valve 12, a water pump 13 and a nozzle 14, the water tank 11 may be used to pre-store a certain amount of water in the road sweeper 100, the switch valve 12 may be used to control the opening or closing of a water channel of the waterway system 10, the water pump 13 may drive the water to flow, the nozzle 14 may be used to spray water mist to the ground when the road sweeper 100 cleans a road surface with dust, the water mist may be combined with the dust and settled, and the dust raised by the road sweeper 100 during the operation may be prevented from causing secondary pollution to the air, thereby improving the air quality.

The water tank 11, the on-off valve 12, the water pump 13 and the nozzle 14 are connected in series, and the water pump 13 and the on-off valve 12 are linked. Specifically, the water pump 13 and the on-off valve 12 are connected in series in the waterway system 10, and the water pump 13 and the on-off valve 12 are linked, and when the on-off valve 12 is opened, the water pump 13 is also operated simultaneously, at this time, the water passage of the waterway system 10 is opened, and the water pump 13 simultaneously drives the water to flow so as to drive the water in the water tank 11 to flow to the nozzle 14 and spray the water mist through the nozzle 14. When the on-off valve 12 is closed, the water passage of the waterway system 10 is closed, and the water pump 13 is also stopped at the same time. Through setting up the form of ooff valve 12 and water pump 13 linkage, accessible ooff valve 12 and water pump 13 open simultaneously according to actual user demand, for example when ground dust is more, realize nozzle 14 to ground water smoke, when ground dust is less, accessible ooff valve 12 and water pump 13 close simultaneously, waterway system 10 closes and water pump 13 no longer drives water flow, so, the convenient operating personnel operation reduces operating personnel's the operation degree of difficulty, promotes the simple operation when running road sweeper 100, makes the flexible control of operating personnel and adjusts waterway system 10. In addition, the linkage mode is arranged, the water pump 13 stops working after the switch valve 12 is closed, and the operation is controlled separately relative to the water pump 13 and the switch valve 12, so that the situation that an operator forgets to close the water pump 13, and the water pump 13 is damaged due to the fact that the water pump 13 runs in a no-load mode all the time can be avoided. It is also possible to avoid the operator forgetting to close the switch valve 12, resulting in leakage of water from the waterway system 10, and it is understood that the amount of water pre-stored in the water tank 11 is limited, so that by providing a linkage of the water pump 13 and the switch valve 12, reasonable use of water in the water tank 11 can be ensured, and unnecessary waste is avoided.

The road sweeper 100 may further include a housing 20, the housing 20 having a detachable mounting plate 21, as shown in fig. 1, the mounting plate 21 being in a detached state, and the on-off valve 12 and the water pump 13 being provided in the housing 20 and in a position close to the mounting plate 21 in the housing 20. Wherein the on-off valve 12 and the water pump 13 are disposed inside the housing 20 and close to the mounting plate 21, specifically, the on-off valve 12 and the water pump 13 are closer to the mounting plate 21 than other components, in other words, there are no other components between the water pump 13 and the mounting plate 21 and between the on-off valve 12 and the mounting plate 21 in a direction perpendicular to the mounting plate 21, so that the on-off valve 12 or the water pump 13 can be directly overhauled or maintained after the mounting plate 21 is disassembled. The switch valve 12 and the water pump 13 are arranged on the inner side of the housing 20, the housing 20 can protect the switch valve 12 and the water pump 13, the switch valve 12 and the water pump 13 are prevented from being exposed to influence the service life of the switch valve 12 and the water pump 13, the switch valve 12 and the water valve can be prevented from being damaged by collision, and the structural stability of the waterway system 10 is improved. When the waterway system 10 fails, only the mounting plate 21 needs to be disassembled, the water pump 13 or the switch valve 12 can be directly maintained, overhauled or replaced, and other parts do not need to be disassembled, so that the road sweeper 100 can be overhauled conveniently when the road sweeper 100 fails. Compared with the prior art, the waterway system 10 is arranged in the rear cabin of the road sweeper 100 and is wrapped by the housing 20 of the rear cabin, when the waterway system 10 needs to be maintained, the housing 20 of the rear cabin needs to be detached first, and then other parts for shielding the waterway system 10 are detached.

The water pump 13 and the switch valve 12 may be connected to the same power supply in different manners, for example, the water pump 13 and the switch valve 12 may be connected to the same power supply and share a control switch to be turned on and off simultaneously, when the control switch is turned on, the switch valve 12 opens the waterway channel, and the water pump 13 starts to operate simultaneously, and when the control switch is turned off, the switch valve 12 cuts off the waterway channel, and the water pump 13 stops operating simultaneously. For another example, the switch valve 12 may be a check valve, and a certain pressure is needed to conduct the waterway, and the conducting pressure of the check valve is greater than the water pressure of the water tank 11 to the check valve and less than the output pressure of the water pump 13, so when the water pump 13 is opened, the check valve can be driven to conduct, and linkage between the water pump 13 and the check valve is realized.

The water pump 13 may be a diaphragm water pump 13, and the water flow is sucked and discharged through the movement of the diaphragm, so that the operation stability of the waterway system 10 can be improved.

In some embodiments of the utility model, in conjunction with fig. 2, the on-off valve 12 is connected upstream of the water pump 13. In other words, the switch valve 12 is closer to the water tank 11, so that water flow is conveniently controlled by the switch valve 12, when the switch valve 12 is closed, water can be locked to close the water channel of the waterway system 10, the water pump 13 is located at the downstream of the switch valve 12, at this time, the water pump 13 does not need to additionally provide a water locking function, and after the switch valve 12 closes the water channel, water leakage of the waterway system 10 can be avoided. In addition, the switch valve 12 is disposed at the upstream of the water pump 13, so that maintenance of the waterway system 10 can be facilitated, for example, when the water pump 13 needs to be maintained or replaced, water flow can be prevented from entering the water pump 13, the switch valve 12 can protect the water pump 13, after the switch valve 12 and the water pump 13 stop working simultaneously, the switch valve 12 can lock water, water in the water tank 11 is prevented from accumulating in the water pump 13, the pressure in the water pump 13 is too high, and the service life of the water pump 13 can be prolonged.

In some embodiments of the present utility model, the on-off valve 12 is a normally closed valve, which can control the water flow to flow in one direction, that is, when the normally closed valve is opened, the water flow can only flow from the water tank 11 to the nozzle 14, so as to limit the water flow to flow back or flow back, thereby avoiding the problem that the water in the waterway system 10 flows back or flows back due to the jolt of the sweeper 100 in the working process, and further improving the working stability of the waterway system 10.

In some embodiments of the present utility model, the on-off valve 12 is a one-way valve, and the opening pressure of the one-way valve is greater than the water pressure of the stored water in the water tank 11 to the one-way valve and less than the output pressure of the water pump 13; in other words, the check valve requires a certain pressure to conduct the waterway system 10 to conduct the waterway channel between the water tank 11 and the water pump 13, so that the water pump 13 can drive the water in the water tank 11 to flow to the nozzle 14. For example, the position of the water tank 11 may be higher than the height of the switch valve 12, and a certain water pressure is generated by a height difference between the water tank 11 and the switch valve 12, specifically, in a normal state, that is, when water is not required to be sprayed to the ground, the pressure of water stored in the water tank 11 is smaller than the opening pressure of the check valve, and the check valve can open circuit for locking water of the waterway system 10, so that low-cost water locking is realized. When water needs to be sprayed to the ground, the opening pressure of the one-way valve is smaller than the output pressure of the water pump 13, that is, when the water pump 13 works, the one-way valve is opened, and the water pump 13 can drive water flow from the water tank 11 to the nozzle 14. In addition, by providing the check valve, the backflow or reverse flow of the water flow can be limited, so that the problem that the water in the waterway system 10 is reversed or guided due to the jolt of the road sweeper 100 in the working process is avoided, and the working stability of the waterway system 10 can be improved.

In some embodiments of the present utility model, the on-off valve 12 is a solenoid valve, that is, the on-off valve 12 can be opened or closed by energizing or de-energizing. When the electromagnetic valve is in a normally closed state during power failure, water can be effectively locked, and after the electromagnetic valve is electrified, a water flow channel can be opened, so that the circulation of a waterway is realized. And the electromagnetic valve has high response speed, can rapidly control the flow of water flow, and realizes accurate control.

In addition, by setting the electromagnetic valve, the linkage of the electromagnetic valve and the water pump 13 is facilitated, the waterway system 10 can further comprise a control key, the control key is in signal transmission with the switch valve 12 and the water pump 13, and the control key synchronously controls the water pump 13 and the switch valve 12. Specifically, the on-off valve 12 and the water pump 13 may be connected to the same power supply, supplied together, and share one control button, when the control button is turned on, the on-off valve 12 and the water pump 13 may be turned on simultaneously, the waterway is opened, and water is pumped by the water pump 13, so that water is sprayed from the nozzle 14 to the ground, and when water is not required to be sprayed to the ground, the control button may be turned off, and at this time, the on-off valve 12 and the water pump 13 may be turned off simultaneously. By arranging the control keys to synchronously control the water pump 13 and the switch valve 12, complex operation steps are not needed, and the operation of operators is convenient.

The electromagnetic valve and the water pump 13 realize accurate control and quick response to the waterway system 10 through control key signal transmission, and can improve the working stability and reliability of the waterway system 10.

The control key can be arranged in the cab of the road sweeper 100, so that the operation of operators can be facilitated. Compared with the mode of independently setting a water valve to control the water way switch, the water valve needs to be arranged in an easy-to-operate place of the road sweeper 100, so that the overall appearance of the road sweeper 100 is affected, and when the road sweeper 100 needs to spray water to a road surface or close the water, the road sweeper 100 can realize one-key opening and closing in a cab without additional operation, thereby reducing the operation difficulty of operators, avoiding forgetting to open the switch valve 12 to cause the water pump 13 to run in a no-load mode, and improving the reliability of the water way system 10.

In some embodiments of the utility model, in conjunction with fig. 2, waterway system 10 further includes a filter 15, filter 15 being connected in series upstream of water pump 13 and on-off valve 12. The filter 15 can play the role of filtering water flow, prevent the water tank 11 from accumulating impurities, or contain the part that the impurity blockked up waterway system 10 in the water source that uses, and the filter 15 establishes ties in the upper reaches of water pump 13 and ooff valve 12, that is to say, the filter 15 is closer to water tank 11, so can filter the water that enters into water pump 13 and ooff valve 12, avoid impurity to enter into in water pump 13 or the ooff valve 12, cause water pump 13 or ooff valve 12 to damage, promote the life of water pump 13 and ooff valve 12, can also avoid impurity to enter into the shower nozzle, block up the shower nozzle and influence the atomizing effect of shower nozzle.

The water tank 11, the filter 15, the switch valve 12 and the water pump 13 are sequentially connected in series, two ends of the filter 15 are respectively connected with a first quick connector 161 and a second quick connector 162, the quick connectors can be connected with and disconnected from a water pipe in a plugging manner, no additional tools are needed for operation, it can be understood that dirt and particulate matters can be gradually accumulated in the filter 15 after long-term use or when impurities of a water source are more, the filtering efficiency of the filter 15 is low, the flow speed of water flow is influenced, the filter 15 needs to be cleaned or replaced regularly, when the filter 15 needs to be cleaned or replaced, the filter 15 can be detached by detaching the first quick connector 161 and the second quick connector 162, and when the filter 15 needs to be maintained, the filter 15 can be independently detached, other components do not need to be detached, and in addition, the filter 15 can be quickly installed on the waterway system 10 through the first quick connector 161 and the second quick connector 162, no complex tools or operations need to be used, so that the filter 15 can be cleaned or replaced conveniently, and the maintenance efficiency of the road sweeper 100 is improved.

The third quick connector 163 and the fourth quick connector 164 are respectively connected to two ends of the switch valve 12, so that when the switch valve 12 needs to be maintained or the switch valve 12 needs to be replaced, the switch valve 12 can be detached by detaching the third quick connector 163 and the fourth quick connector 164, and when the switch valve 12 needs to be maintained, overhauled or replaced, the switch valve 12 can be detached independently without detaching other components, and in addition, the filter 15 can be quickly installed on the waterway system 10 through the third quick connector 163 and the fourth quick connector 164 without using tools or performing complex operations, so that the switch valve 12 can be conveniently maintained, and the maintenance efficiency of the road sweeper 100 is improved.

Optionally, seals are provided in the first quick connector 161, the second quick connector 162, the third quick connector 163, and the fourth quick connector 164 to improve the sealing performance of the waterway system 10.

In addition, the waterway system 10 further includes a first water pipe 171, a second water pipe 172, and a third water pipe 173; wherein, one end of the first water pipe 171 is connected to the water tank 11, the other end is connected to the first quick connector 161, two ends of the second water pipe 172 are respectively connected to the second quick connector 162 and the third quick connector 163, one end of the third water pipe 173 is connected to the fourth quick connector 164, and the other end is connected to the water pump 13. Specifically, the connection order of the components of the waterway system 10 is as follows: the water tank 11, the first water pipe 171, the first quick connector 161, the filter 15, the second quick connector 162, the second water pipe 172, the third quick connector 163, the switch valve 12, the fourth quick connector 164, the third water pipe 173, the water pump 13 and the spray head are sequentially connected in series, so that the layout among all the components is reasonable, and when the components are required to be maintained, overhauled or replaced, the components can be independently disassembled, and the maintenance efficiency of the road sweeper 100 is improved. When the switch valve 12 and the water pump 13 are opened, water enters the filter 15 from the water tank 11 through the first water pipe 171 for filtration, enters the switch valve 12 through the second water pipe 172, enters the water pump 13 through the third water pipe 173, finally enters the spray head for atomization, and is sprayed to the ground, so that the dust fall effect is achieved.

In some embodiments of the utility model, referring to fig. 1 and 2, the filter 15 may be disposed within the housing 20 and positioned within the housing 20 proximate to the mounting plate 21. The filter 15 is arranged on the inner side of the housing 20, the housing 20 can protect the filter 15, the filter 15 is prevented from being exposed to influence the service life of the filter 15, the filter 15 is prevented from being damaged by collision, and the structural stability of the waterway system 10 is improved. In addition, the on-off valve 12 is provided in the housing 20 at a position close to the mounting plate 21, specifically, the filter 15 is closer to the mounting plate 21 than other components, in other words, there is no other component between the filter 15 and the mounting plate 21 in a direction perpendicular to the mounting plate 21, so that the filter 15 can be directly inspected or maintained after the mounting plate 21 is detached. Compared with the prior art, the waterway system 10 is arranged in the rear cabin of the road sweeper 100 and is wrapped by the housing 20 of the rear cabin, when the waterway system 10 needs to be maintained, the housing 20 of the rear cabin needs to be detached first, and then other parts for shielding the waterway system 10 are detached.

Referring to fig. 2, in some embodiments of the present utility model, a reducer 165 is connected between the water pump 13 and the nozzle 14, the waterway system 10 further includes a fourth water pipe 174 and a fifth water pipe 175, one end of the fourth water pipe 174 is connected to the water pump 13, the other end is connected to the reducer 165, a first end of the fifth water pipe 175 is connected to the reducer 165, the other end is connected to the nozzle 14, and a pipe diameter of the fourth water pipe 174 is greater than a pipe diameter of the fifth water pipe 175. In other words, after the water flows from the fourth water pipe 174 to the fifth water pipe 175, the pipe diameter of the water pipe is reduced, so that the flow rate of the water in the fifth water pipe 175 is reduced, the flow rate is increased, the pressure of the water is increased, and the impact force of the water flow is increased, so that the water outlet effect of the nozzle 14 is improved.

Further, referring to fig. 1 to 3, the waterway system 10 may further include a three-way joint 166, a sixth water pipe 176 and a seventh water pipe 177, wherein the three-way joint 166 is connected to the other end of the fifth water pipe 175, one end of the sixth water pipe 176 and one end of the seventh water pipe 177, respectively, and the other ends of the sixth water pipe 176 and the seventh water pipe 177 are connected to the nozzles 14, respectively. By arranging the three-way joint 166, water can be respectively drained from the fifth water pipe 175 to the sixth water pipe 176 and the seventh water pipe 177, so that the two nozzles 14 can spray water at the same time, and the dust settling effect is improved.

Referring to fig. 2, in some embodiments of the present utility model, a mounting bracket 18 is provided within the housing 20, the mounting bracket 18 is provided within the housing 20, and the on-off valve 12 and the water pump 13 are mounted on the mounting bracket 18. The mounting bracket 18 can fix the switch valve 12 and the water pump 13, so that the switch valve 12 and the water pump 13 can be stably fixed in the housing 20, the switch valve 12 and the water pump 13 are prevented from being damaged due to jolt of the road sweeper 100 in the working process, and the structural stability and the service life of the waterway system 10 are improved.

Referring to fig. 1, in some embodiments of the present utility model, at least a portion of the water tank 11 is provided outside of the housing 20 and above the housing 20. That is, the position of the water tank 11 is higher than the positions of the on-off valve 12 and the water pump 13, and has a certain height difference, so that the work load of the water pump 13 can be reduced, a certain amount of water can be prestored in the water tank 11, and the stability of water supply is improved.

The following describes a road sweeper 100 according to some embodiments of the present utility model with reference to the accompanying drawings.

Referring to fig. 1 to 3, the road sweeper 100 may include a waterway system 10 and a housing 20, the waterway system 10 may include a water tank 11, a filter 15, a switching valve 12, a water pump 13 and a nozzle 14, the water tank 11, the filter 15, the switching valve 12, the water pump 13 and the nozzle 14 are sequentially connected in series, the water pump 13 and the switching valve 12 are linked, the water pump 13 and the switching valve 12 may supply power together, a control key may be provided in a cab of the road sweeper 100, the control key transmits signals to the switching valve 12 and the water pump 13, and the control key synchronously controls the water pump 13 and the switching valve 12. The switch valve 12 may be connected to the upstream of the water pump 13, the filter 15 is connected in series to the water pump 13 and the upstream of the switch valve 12, two ends of the filter 15 are respectively connected to the first quick connector 161 and the second quick connector 162, two ends of the switch valve 12 are respectively connected to the third quick connector 163 and the fourth quick connector 164, and the waterway system 10 further includes a first water pipe 171, a second water pipe 172, and a third water pipe 173; one end of the first water pipe 171 is connected with the water tank 11, the other end is connected with the first quick connector 161, two ends of the second water pipe 172 are respectively connected with the second quick connector 162 and the third quick connector 163, one end of the third water pipe 173 is connected with the fourth quick connector 164, and the other end is connected with the water pump 13. The water path system 10 further comprises a fourth water pipe 174 and a fifth water pipe 175, wherein the fourth water pipe 174 is respectively connected with the water pump 13 and the reducer union 165, the fifth water pipe 175 is respectively connected with the reducer union 165 and the nozzle 14, and the pipe diameter of the fourth water pipe 174 is larger than that of the fifth water pipe 175. The on-off valve 12 may be a solenoid valve, and the water pump 13 may be a diaphragm water pump 13. The housing 20 has a detachable mounting plate 21, the on-off valve 12, the water pump 13 and the filter 15 are provided in the housing 20 and are disposed opposite to the mounting plate 21, a mounting bracket 18 is provided in the housing 20, the on-off valve 12 and the water pump 13 are mounted on the mounting bracket 18, and at least a portion of the water tank 11 is disposed outside the housing 20 and higher than the housing 20.

In combination with the above embodiment, the working principle of the road sweeper 100 is described, clean water is stored in the water tank 11, is communicated with the filter 15 through the first water pipe 171, plays a role of filtering fine sand to prevent blocking of downstream components, the filtered water flows to the switch valve 12 through the second water pipe 172, can be turned on and off in a waterway through a control key in a cab, is communicated with the water pump 13 through the third water pipe 173, the water pump 13 is a power source of the whole waterway system 10, enters the fourth water pipe 174 after coming out of the water pump 13, realizes pipeline diameter change through the quick-plug reducing joint 165, is connected with the nozzle 14 through the fifth water pipe 175, and ejects clean water from the front of the road sweeper 100.

The waterway system 10 may be provided with two nozzles 14, the waterway system 10 may further include a three-way joint 166, a sixth water pipe 176 and a seventh water pipe 177, one end of the three-way joint 166 is connected with the fifth water pipe 175, the other end of the three-way joint 166 is connected with the sixth water pipe 176 and the seventh water pipe 177, and the sixth water pipe 176 and the seventh water pipe 177 may be respectively connected with one nozzle 14, so that when water needs to be sprayed to the ground, two fan-shaped spraying surfaces can be formed through the two nozzles 14 to wet dust on the ground, and the effect of dust fall is improved.

Wherein, the switch valve 12 and the water pump 13 supply power together and simultaneously open or close, and share one control key; when the spray switch is pressed, the switch valve 12 supplies power to open the waterway, and the water pump 13 starts to work; when the spray switch is turned off, the switch valve 12 is powered off to cut off the waterway, the pump stops working, and the whole waterway system 10 cannot leak water even if the water pump 13 has no water locking function because the water pump 13 is positioned at the downstream of the switch valve 12.

The housing 20 is mounted by bolts and can be detached independently; the filter 15, the switch valve 12 and the water pump 13 are assembled in the rear cabin of the road sweeper 100 and are close to the housing 20, and are connected with the upstream and the downstream through the quick-plug connector and the quick-plug reducing connector 165, so that after the housing 20 is disassembled, the filter 15, the electromagnetic valve and the diaphragm water pump 13 are convenient to operate and can be independently disassembled, and maintenance, overhaul and replacement are convenient.

The housing 20 can be divided into an upper block, a rear block, a left block and a right block, each block can be independently disassembled, so that maintenance of the road sweeper 100 is facilitated, the waterway system 10 is assembled close to the mounting plate 21, and maintenance can be facilitated after the mounting plate 21 is disassembled.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A road sweeper (100), characterized by comprising:

A waterway system (10), the waterway system (10) comprising: the water tank (11), the switch valve (12), the water pump (13) and the nozzle (14) are connected in series, and the water pump (13) and the switch valve (12) are linked;

A housing (20), the housing (20) having a detachable mounting plate (21),

The switch valve (12) and the water pump (13) are arranged in the housing (20) and are arranged in the housing (20) at a position close to the mounting plate (21).

2. The road sweeper (100) according to claim 1, characterized in that said on-off valve (12) is connected upstream of said water pump (13).

3. The road sweeper (100) according to claim 1, characterized in that said waterway system (10) further comprises a filter (15), said filter (15) being connected in series upstream of said water pump (13) and of said on-off valve (12); the filter (15) is arranged in the housing (20) and is arranged in the housing (20) at a position close to the mounting plate (21).

4. A road sweeper (100) according to claim 3, wherein the water tank (11), the filter (15), the switch valve (12) and the water pump (13) are sequentially connected in series, a first quick connector (161) and a second quick connector (162) are respectively connected to two ends of the filter (15), a third quick connector (163) and a fourth quick connector (164) are respectively connected to two ends of the switch valve (12), and the first quick connector (161), the second quick connector (162), the third quick connector (163) and the fourth quick connector (164) are suitable for being connected or disconnected with a water pipe in a plugging manner;

Waterway system (10) still includes first water pipe (171), second water pipe (172), third water pipe (173), the one end of first water pipe (171) is connected water tank (11), and the other end is connected first quick-connect connector (161), the one end of second water pipe (172) is connected second quick-connect connector (162), and the other end is connected third quick-connect connector (163), the one end of third water pipe (173) is connected fourth quick-connect connector (164), and the other end is connected water pump (13).

5. The road sweeper (100) according to claim 1, characterized in that a reducer union (165) is connected between the water pump (13) and the nozzle (14), the waterway system (10) further comprises a fourth water pipe (174) and a fifth water pipe (175), one end of the fourth water pipe (174) is connected with the water pump (13), the other end is connected with the reducer union (165), one end of the fifth water pipe (175) is connected with the reducer union (165), the other end is connected with the nozzle (14), and the pipe diameter of the fourth water pipe (174) is larger than the pipe diameter of the fifth water pipe (175).

6. The road sweeper (100) according to claim 5, wherein the waterway system (10) further comprises a three-way joint (166), a sixth water pipe (176) and a seventh water pipe (177), the three-way joint (166) being connected to the other end of the fifth water pipe (175), one end of the sixth water pipe (176) and one end of the seventh water pipe (177), respectively, and the other end of the sixth water pipe (176) and the other end of the seventh water pipe (177) being connected to the nozzle (14) respectively.

7. The road sweeper (100) of claim 1, wherein the on-off valve (12) is a normally closed valve;

Or the switch valve (12) is a one-way valve, and the opening pressure of the one-way valve is larger than the water pressure of the water stored in the water tank (11) to the one-way valve and smaller than the output pressure of the water pump (13);

Or, the switch valve (12) is an electromagnetic valve.

8. The road sweeper (100) of claim 1, wherein the road sweeper (100) further comprises:

The control button is in signal transmission with the switch valve (12) and the water pump (13), and the control button synchronously controls the water pump (13) and the switch valve (12).

9. The road sweeper (100) according to claim 1, characterized in that a mounting bracket (18) is provided in the housing (20), and the on-off valve (12) and the water pump (13) are mounted on the mounting bracket (18).

10. The road sweeper (100) according to claim 1, characterized in that at least a portion of the water tank (11) is provided outside the housing (20) and higher than the housing (20).