Adjustable nozzle device for watering cart

Abstract

The utility model relates to an adjustable nozzle device for a watering cart. The adjustable nozzle device comprises a valve element and a movable nozzle. The front end of the valve element is a hollow conical part, a water outlet is formed in the side face of the conical part of the valve element, the front end of the conical part of the valve element is a closed end, the rear end of the conical part of the valve element is connected with a circular pipe part, the rear end of the circular pipe part is connected with a water sprinkler pipeline, and the water sprinkler pipeline is used for conveying water flow in a water sprinkler tank into the valve element. The movable nozzle is slidably connected to the outer side of the valve element in a sleeving mode, the front end of the movable nozzle is a conical part, a water spraying hole is formed in the front end of the conical part of the movable nozzle, and the water spraying hole sprays columnar water flow to flush the road surface; the conical part of the valve element is located in the movable nozzle, and the movable nozzle keeps dynamic sealing in the moving process relative to the valve element. And a driver for driving the movable nozzle to move back and forth is connected to the outer part of the watering cart pipeline. The water outlet amount of the nozzle can be adjusted according to the actual situation of a road surface, and the operation time of a single tank of water of the watering cart is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of sprinkler truck technology, specifically to an adjustable nozzle device for sprinkler trucks. Background Technology

[0002] Water sprinkler trucks are widely used in urban road cleaning, garden irrigation, and other fields. Traditional water sprinkler truck nozzles usually use a fixed spray pattern, which cannot flexibly adjust the water output according to the actual needs of the road surface, resulting in problems such as short working time per tank and frequent vehicle refilling. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an adjustable nozzle device for sprinkler trucks, so that the water output of the sprinkler truck nozzles can be adjusted in real time.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An adjustable nozzle device for a sprinkler truck includes a valve core and a movable nozzle;

[0006] The front end of the valve core is a hollow conical part, and the side of the conical part of the valve core has a water outlet. The front end of the conical part of the valve core is a closed end, and the rear end of the conical part of the valve core is connected to a round tube. The rear end of the round tube is connected to the sprinkler truck pipeline, and the sprinkler truck pipeline is used to transmit water from the sprinkler truck tank to the valve core.

[0007] The movable nozzle is hollow inside and is slidably sleeved on the outside of the valve core. The front end of the movable nozzle is a conical part, and the front end of the conical part of the movable nozzle is a water spray hole. The water spray hole sprays a columnar water flow to wash the road surface.

[0008] The conical portion of the valve core is located inside the movable nozzle, and the movable nozzle maintains a dynamic seal during the movement of the valve core.

[0009] The water truck's pipeline is externally connected to a driver that moves the movable nozzles back and forth.

[0010] Furthermore, a sealing ring is provided on the outer wall of the front end of the circular tube portion of the valve core, and the sealing ring abuts against the inner wall of the movable nozzle.

[0011] Furthermore, the actuator is an electric push rod.

[0012] Furthermore, the rear end of the valve core tube is connected to the water truck pipeline via an external connector.

[0013] The present invention adopts the above technical solution and has the following beneficial effects: the water output of the nozzle can be flexibly adjusted by driving the movable nozzle to move back and forth. It has a simple structure, is easy to operate and has a low cost. The water output of the nozzle can be adjusted according to the actual road conditions, thus extending the working time of a single tank of water in the sprinkler truck. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0016] like Figure 1 As shown, this utility model discloses an adjustable nozzle device for a sprinkler truck, comprising a valve core 2 and a movable nozzle 1.

[0017] The front end of the valve core 2 is a hollow conical part. The side of the conical part of the valve core 2 has a water outlet. The front end of the conical part of the valve core 2 is a closed end. The rear end of the conical part of the valve core 2 is connected to a round tube. The rear end of the round tube is connected to the sprinkler truck pipe 5 through an external connector 6. The sprinkler truck pipe 5 is used to transmit water from the sprinkler truck tank to the valve core 2.

[0018] The movable nozzle 1 is hollow inside and is slidably sleeved on the outside of the valve core 2. The front end of the movable nozzle 1 is a conical part, and the front end of the conical part of the movable nozzle 1 is a water spray hole. The water spray hole sprays a columnar water flow to wash the road surface.

[0019] The conical part of the valve core 2 is located inside the movable nozzle 1, and the movable nozzle 1 maintains a dynamic seal during the movement of the valve core 2.

[0020] The external connection of the water truck pipe 5 is a drive 4 that drives the movable nozzle 1 to move back and forth.

[0021] A sealing ring 3 is provided on the outer wall of the front end of the circular tube of the valve core 2. The sealing ring 3 abuts against the inner wall of the movable nozzle 1 to achieve dynamic sealing between the movable nozzle 1 and the valve core 2 during the movement of the movable nozzle 1.

[0022] In this embodiment, the actuator 4 is an electric push rod, but it can also be a cylinder. The two ends of the actuator 4 are connected to the movable nozzle 1 and the sprinkler truck pipe 5, respectively, to control the movement of the movable nozzle 1 outside the valve core 2.

[0023] When the water output needs to be reduced during the operation of the sprinkler truck, the driver 4 retracts, driving the movable nozzle 1 to move to the right side of the attached diagram, reducing the water passage area between the movable nozzle 1 and the valve core 2, thereby reducing the water output of the sprinkler truck.

[0024] When it is necessary to increase the water output, the driver 4 extends and drives the movable nozzle 1 to move to the left side of the attached diagram, increasing the water passage area between the movable nozzle 1 and the valve core 2, thereby increasing the water output of the sprinkler truck.

[0025] It should be noted that when the water flow area decreases, the water flow velocity increases, but pipe friction and local resistance (Darcy-Weisbach formula) will increase significantly, resulting in a decrease in the overall flow rate Q under the same water pressure.

[0026] The specific embodiments of this utility model have been described above. However, those skilled in the art should understand that this is only an example. Those skilled in the art can make various changes or modifications to this embodiment without departing from the principle and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. An adjustable nozzle device for a sprinkler truck, characterized in that: Includes valve core and moving nozzle; The front end of the valve core is a hollow conical part, and the side of the conical part of the valve core has a water outlet. The front end of the conical part of the valve core is a closed end, and the rear end of the conical part of the valve core is connected to a round tube. The rear end of the round tube is connected to the sprinkler truck pipeline, and the sprinkler truck pipeline is used to transmit water from the sprinkler truck tank to the valve core. The movable nozzle is hollow inside and is slidably sleeved on the outside of the valve core. The front end of the movable nozzle is a conical part, and the front end of the conical part of the movable nozzle is a water spray hole. The water spray hole sprays a columnar water flow to wash the road surface. The conical portion of the valve core is located inside the movable nozzle, and the movable nozzle maintains a dynamic seal during the movement of the valve core. The water truck's pipeline is externally connected to a driver that moves the movable nozzles back and forth.

2. The adjustable nozzle device for a sprinkler truck according to claim 1, characterized in that: The valve core has a sealing ring on the outer wall of the front end of the circular tube section, and the sealing ring abuts against the inner wall of the movable nozzle.

3. The adjustable nozzle device for a sprinkler truck according to claim 1, characterized in that: The actuator is an electric push rod.

4. The adjustable nozzle device for a sprinkler truck according to claim 1, characterized in that: The rear end of the valve core tube is connected to the water truck pipeline via an external connector.

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