Cleaning nozzles and road cleaning vehicles

Abstract

The invention provides a cleaning suction nozzle and a road cleaning vehicle. The cleaning suction nozzle comprises a suction nozzle body. The lower side of the suction nozzle body is open so that a suction cavity can be formed, and an air suction opening is formed in the top of the suction nozzle body. A front retaining piece is arranged at the front end of the suction nozzle body and comprises a fixing part fixedly connected with the suction nozzle body, an adjusting part for making contact with to-be-cleaned garbage, and an elastic part connected between the fixing part and the adjusting part. The gap between the lower edge of the adjusting part and the to-be-cleaned ground forms an opening for allowing gas mixed with the garbage to enter the suction cavity. The elastic part is arranged to provide the elastic force departing from the to-be-cleaned ground for the adjusting part. When subjected to the action of the to-be-cleaned garbage, the adjusting part conducts telescopic movement under the action of the gravity of the adjusting part, the acting force of the to-be-cleaned garbage and the elastic force of the elastic part so that the size of the opening can be adjusted to be matched with the size of the to-be-cleaned garbage. The adjusting part is subjected to the acting force of the to-be-cleaned garbage and the elastic part, and therefore the adjusting part can conduct telescopic movement more easily so that the size of the opening can be rapidly and flexibly adjusted.

Description

technical field [0001] The invention relates to the field of cleaning garbage by using vacuum negative pressure suction, in particular to a cleaning nozzle and a road cleaning vehicle using the cleaning nozzle. Background technique [0002] In the field of using vacuum negative pressure to suck garbage, the cleaning nozzle plays an important role in garbage suction. Under the action of vacuum negative pressure, the gas mixed with garbage can enter the designated garbage storage area through the suction nozzle. For example, in the field of cleaning vehicles, especially in road sweeping vehicles, under the suction of the fan, garbage can enter the dustbin of the road sweeping vehicle through the suction nozzle together with the air, thereby achieving the purpose of cleaning the road surface. Therefore, the design form of the suction nozzle directly affects its own suction rate of garbage and the cleaning ability of the cleaning vehicle using the suction nozzle on the road surf...

AI Technical Summary

Problems solved by technology

[0004] 1. The rubber baffle at the front end of the suction nozzle has a small and fixed ground clearance, so that the suction nozzle cannot pick up large particle size and low-density garbage

In order to ensure the suction performance of the suction nozzle, there is a certain gap between the rubber enclosure around the suction nozzle and the ground. Since the gap is usually less than 10mm, the suction nozzle cannot pick up large-sized garbage such as leaves and plastic bottles, which seriously affects the suction nozzle. usage of

[0005] 2. To increase the ground clearance of the rubber baffle at the front end of the suction nozzle to ensure that large-size particles can be picked up, the negative pressure in the inner cavity of the suction nozzle will be insufficient. When the garbage layer on the road surface is thick, it cannot be completely picked up and the garbage is cleaned not effectively

[0006] In the prior art, in order to overcome the above problems, the baffle at the front end of the suction nozzle is also set to be adjustable to realize the adjustable opening size. Practice has found that the baffle at the front end of the suction nozzle in the prior art cannot be quickly and flexibly adapted Therefore, it is necessary to further optimize the structure of the suction nozzle to realize the adjustment of the suction nozzle opening through simpler and more effective means, so that the opening on the suction nozzle can better adapt to the size of the garbage without affecting the suction nozzle. negative pressure suction, and increase the working energy consumption of road cleaning vehicles

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