JPH055545B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an injection nozzle used in automobiles and other cleaning devices, and in particular, the nozzle is rotated by the reaction force of the injection force of water or hot water from the nozzle, and the injection nozzle is This invention relates to an improvement of a rotating nozzle that can widen the area and clean a wide area.

[Prior Art] The cleaning nozzle conventionally used in this type of cleaning device or washing machine has been designed to quickly and widely clean the water or hot water by widening the spray angle of the nozzle to spray water or hot water for high-pressure cleaning. Typical spray nozzles currently in use are often used for cleaning purposes, but in recent years, this spray nozzle has been mounted eccentrically to create a jet stream, and the nozzle has been mounted using the reaction of the jet force. Several types of nozzles have been developed that rotate the nozzle integrally with a rotating body and wash the nozzle while rotating the water sprayed from the nozzle. It was said that the method of free rotation was used, and the rotating jet of water had a wide angle, making cleaning work easier. Examples of such a rotary nozzle include Japanese Patent Application Laid-open No. 63-20055 and Japanese Patent Application Laid-open No. 63-20055.
-There is a publication No. 185468.

[Problems to be Solved by the Invention] However, in order to improve the cleaning effect, high-pressure jetting of water or hot water is required, but in the rotary nozzle described above, the jet jet of high-pressure fluid speeds up the rotation of the nozzle. The cleaning is accelerated and the cleaning speed is so fast that it slides over the surface of the object to be cleaned, or it becomes a mist, and the impact force and digging and scrubbing effect of the high-pressure washing water on the object to be cleaned is weakened. , the cleaning power decreases. This will not remove stubborn dirt.

In addition, in terms of functionality, due to the bearing-like rotation of the steel ball in a rotary nozzle, the friction surface deforms early and the nozzle rotation stops, or dust and dirt due to friction surface abrasion get caught everywhere, or limescale, water stains, etc. Rotation stops due to rust, etc., and especially when using hot water cleaning fluid, evaporation residue scale adheres to the rotating contact surface, causing rotation to stop. Conventional rotary nozzles of this type are convenient, but are not suitable for cleaning work due to their short lifespan and failure.

In view of these problems, the present invention rotates a nozzle using the reaction force of the jetting force of cleaning liquid such as high-pressure water or hot water, and sprays water along a conical surface to cover a cleaning area. At the same time, the rotational speed of the nozzle rotated by the jetting force is controlled to a low speed to strengthen the impact cleaning power of the high-pressure jetted cleaning water on the object to be cleaned, and in addition to expanding the cleaning area, high cleaning efficiency is achieved. The object of the present invention is to provide a brake type rotary nozzle with a simple structure that improves workability.

[Means for Solving the Problems] In order to achieve the above object, the brake type rotary nozzle of the present invention rotates on a water flow shaft 1 having a water flow channel 2 with a closed end for introducing high-pressure water and hot water. The conical rotor 6 is freely supported, and the conical rotor is connected to the water passage 2 through the water passage shaft hole 3 bored in the water passage shaft 1, and is arranged at a predetermined position relative to the rotational axis of the conical rotor 6. A rotary nozzle that has a rotor waterway hole 8 linearly deflected at an inclined angle and a nozzle 9 at its tip, and rotates integrally with the conical rotor 6 by the jetting force of water or hot water from the nozzle, Elastic vanes 10 made of rubber or soft plastic with large bending, elongation, and sliding friction are attached to the rotor 6 so as to open outward due to centrifugal force.
A cylindrical cover 12 fixed to the water passage shaft 1 on the outside of the
A braking means is provided to reduce the rotational speed of the nozzle 9 by mutual rotational friction between the elastic vane 10 and the inner surface of the cylindrical cover 12.

Further, an elastic vane plate 10 is provided on the upper surface of the conical rotor 6.
Attach the rotor cover 13 that covers the pivot portion of the rotor.

[Function] High pressure is applied to the nozzle 9 from the pipe or hose connected to the cylindrical cover stop nipple 5 at one end of the water shaft 1 through the water flow channel 2 of the water flow shaft 1, the water flow shaft hole 3, and the rotor water channel hole 8. When washing water or hot water is passed through, the high-pressure water jet becomes a jet jet due to the eccentricity of the nozzle 9 and its installation inclined and deflected with respect to the rotation axis.
The rotor 6 together with the nozzle 9 is rotated about the water passage axis by the reaction force of the jetting force. At this time, the conical rotor 6
When the rotational force increases, the free end side of the elastic vane 10 is expanded outward due to the centrifugal force of rotation, and the rubber or plastic vane 10 bends, stretches, and has rubber-like elasticity. As a result, the elastic vane 10 fits well with the inner surface of the cylindrical cover 12 and increases the contact surface, so the elastic vane 10 rotates and slides as if pushing against the inner surface of the cylindrical cover 12, and tries to rotate faster due to the frictional resistance generated at that time. It acts as a brake to reduce power. Therefore, the higher the rotational speed of the nozzle 9 and the higher the pressure of the cleaning water, the greater the braking effect, so that a suitable rotational speed can be obtained in proportion to the number of blades that are expanded outward by centrifugal force. Since the braking speed is low, a large jet impact of the cleaning water on the object to be cleaned can be maintained, and as a result, the cleaning effect can be enhanced.

[Example] An example will be described with reference to the drawings. In FIGS. 1 to 3, this braking type rotary nozzle is installed on the circumferential side of the tip of the water passage 2 of the water passage shaft 1 whose tip is closed. Several water passage shaft holes 3 are provided in the water passage shaft 1, and one end of the water passage shaft 1 is formed with a threaded connection portion 4 for a nipple 5 to which a pipe or a hose connected to a water source is connected.

A rotor 6 having a cylindrical shape with a flat upper surface side or a conical shape with an enlarged upper surface side is attached to the water passage shaft 1 with an O ring 7.
It is rotatably attached via the .

The rotor 6 has a rotor water passage hole 8 which is connected to the water passage hole 3 of the water passage shaft 1 toward the flat upper surface thereof, and which is connected to the water passage hole 8 in a straight line at a predetermined inclination angle with respect to the rotation axis of the conical rotor 6. A nozzle 9 screwed and fixed to the tip of the hole is eccentrically arranged and deflected in a direction tangential to the rotation. A nozzle 9 is provided at an eccentric position through the rotor water passage hole 8 from the water passage shaft hole 3.
The nozzle 9 and the conical rotor 6 are configured to rotate by the reaction force of the jetting force.

On the outside of the conical rotor 6, one end of each of several strip-shaped elastic vanes 10 made of rubber or plastic having the same effect is protruded at equal intervals on the large diameter side of the conical rotor 6. It is pivotally attached to the stopper 11 and is provided so as to expand outward by the centrifugal force of the rotation of the conical rotor 6.

A hard cylindrical cover 12 fixed by a nipple 5 screwed onto one end of the water passage shaft is covered on the outside of the elastic vane 10, so that the elastic vane 10 covers the cylindrical cover during rotation. The conical rotor 6 is made to slide and rotate on the inner surface of the cylindrical cover 12, and is adapted well to the inner surface of the cylindrical cover 12 due to its elastic properties such as bending, elongation, and large sliding friction due to the rubbery form of the elastic vanes 10.
The higher the rotation speed of the conical rotor 6 and the nozzle 9, the greater the frictional resistance generated, and the rotation of the conical rotor 6 and nozzle 9 is braked to control the rotation to a moderately low speed.

The cylindrical cover 12 is made of metal, ceramic, or hard synthetic resin.

A rotor cover 13 is attached to the conically enlarged upper surface of the conical rotor 6 with a set screw 14, and is provided so as to cover the periphery of the pivot point that serves as the fulcrum of the elastic vane 10.

FIG. 4 shows an embodiment in which a rotational braking means for controlling high-speed rotation of a rotating nozzle is installed outside the conical rotor of the present invention equipped with a nozzle. Alternatively, a conical rotor 6a rotatably fitted to a water passage shaft having a water passage through which hot water is introduced has a conical rotor 6a that communicates with the water passage shaft hole 3a and is deflected linearly at a predetermined inclination angle with respect to the rotation axis. A rotor waterway hole 8a is provided, and a nozzle 9a is attached to the tip of the rotor waterway hole 8a. This nozzle 9a is eccentric to the rotational axis and rotates so that the conical rotor 6a and the windmill fan 17 with a shell tube, which will be described later, rotate in the direction of the arrow in FIG. Install it on the rotor at an angle. The conical rotor 6a is configured to rotate in the direction of the arrow around the water passage axis due to the reaction force of the water or hot water jetting force from the nozzle 9a.

The rotor 6a is formed into a conical shape with an enlarged flat upper surface, and several wind turbine blade plates 16 are arranged along the axial direction of a cylinder 15 made of an elastic material such as rubber or plastic on the outer peripheral side of the rotor 6a. A windmill fan 17 with a shell tube protruding in the circumferential direction is covered from the upper surface side of the rotor, and a top plate 15 has one end of the tube body 15 closed.
a to the flat surface of the upper surface of the conical rotor 6a.
4a, and the nozzle 9a is attached to this top plate 15a.
A braking means is provided which is screwed and fixed to the tip portion of the rotor waterway hole 8a from above and reduces the rotational speed of the nozzle 9a by the wind pressure resistance that the wind turbine blade plate 16 receives.

The wind turbine blade plate 16 that protrudes in the circumferential direction along the entire length of the cylinder of the wind turbine fan 17 with a shell tube is connected to the conical rotor 6.
It is preferable that the surface facing the rotational direction of a is formed into a curved concave surface 16a to increase rotational resistance. Further, the number of the curved wind turbine blades 16 is increased or decreased depending on the required pressure of the cleaning water used.

Further, a threaded portion 18 is provided on the outside at the end of the water passage shaft 1, and a nipple for connecting a water supply pipe, a hose, etc. connected to a water source is screwed and connected thereto.

In this embodiment, the rotor 6a and the windmill fan 17 with a cylindrical shell attached to the rotor are rotated by the jet power of water or hot water from the nozzle 9a, and the cylindrical body 15
The wind turbine blades 16, which are provided on the outside and have a concave curved surface facing the direction of rotation, receive large wind pressure resistance in response to the rotational force of the jet jet of water, and the rotation of the conical rotor 6a is constantly braked. , since the rotating nozzle can obtain a moderate rotation speed at low speed,
It is possible to maintain the desired impact cleaning power of jet water cleaning on the object to be cleaned, and efficient cleaning work is possible, and since both the cylinder body and blades of this fan with a shell are made of rubber or soft plastic, it is easy to clean the object. Even if the object comes into contact with cleaning, the object itself will not be damaged.

[Effects of the Invention] As described above, the present invention includes a rotor water passage hole which is deflected and communicated at a predetermined inclination angle with respect to the water passage of the water passage shaft, and a conical rotor with a widening tip that is rotatably mounted on the water passage shaft. A nozzle is provided at the tip of the conical rotor, and the conical rotor is rotated by the reaction force of the jet of high-pressure water or hot water introduced from the water passage and jetted from the nozzle through the rotor water passage hole which is tilted and deflected.
Several elastic vanes are provided on the outside of the large diameter side of the conical rotor, one end of each of which is pivotally supported and arranged in the axial direction of the rotor. The higher the rotational speed and washing water pressure of the conical rotor integrated with the nozzle, the more the frictional force between the elasticity of the rubber or soft plastic of the elastic vanes and the cylindrical cover increases, increasing the braking force. Therefore, a large starting force is not required when starting the nozzle and rotor, and the braking effect increases as the cleaning water pressure and nozzle rotation speed increase, so the injection-type rotary nozzle always maintains a stable, low-speed, moderately constant rotation. Therefore, in addition to expanding the cleaning area by the rotating nozzle, it is possible to maintain the desired impact cleaning power of the cleaning water, and as a result, the cleaning effect can be enhanced, and the cleaning work and rotary jet cleaning efficiency are significantly improved. Obtained.

It also helps to prevent rotation even if water leaks from the water shaft inside the cylindrical cover and water accumulates inside. Therefore, there are extremely few parts that wear out due to such rotational speeds, and the braking means using the elastic blades is built-in, and the elastic blades are made of an elastic material such as rubber or soft plastic, so there is no friction on the friction surface. There is no friction failure, and compared to conventional friction braking between metals, it can reduce failures and short lifespans due to dust, scale, etc. caused by frictional surface abrasion.

In addition, by making the rotor conical, the material and weight can be reduced, and the internal space with the cylindrical cover can be removed, eliminating the need to enlarge the outer shell of the nozzle body and incorporating braking means using elastic vanes. Moreover, the outer shell of the main body of the rotary nozzle of the brake type can be kept small, and this type of rotary nozzle is small and lightweight, and it is also advantageous for cleaning equipment or cleaning work places. In addition, the elastic vanes are easy to install and clean, and the number of elastic vanes can be increased or decreased depending on the required pressure of the cleaning water.
It is possible to easily reduce the rotational speed of the rotating nozzle appropriately, and there are advantages such as the number of parts is small, the structure is very simple and it can be provided at a low cost compared to conventional products.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing the conical rotor and internal mechanism of the rotating nozzle of the present invention;
The figure is a partially cutaway perspective view of the outer cylindrical cover, and Figure 3 is a partially cutaway perspective view showing the assembled state of the conical rotor and outer cylindrical cover in Figures 1 and 2. FIG. 4 is a partially cutaway perspective view showing another embodiment of the present invention. 1...Water flow shaft, 2...Water flow channel, 3...Water flow shaft hole, 5...
Cylindrical cover fixing nipple, 6, ... conical rotor,
8... Rotor channel hole, 9... Nozzle, 10... Elastic vane plate made of rubber or soft plastic, 11... Vane plate stopper, 12... Cylindrical cover, 13... Rotor cover.

Claims (1)

[Scope of Claims] 1. In a rotating nozzle that is rotated by the reaction force of the jetting force of water or hot water jetted from a nozzle, a conical rotor with a wide end that is rotatably attached to a water passage shaft is attached to a water passage shaft. A rotor water passage hole is provided which is deflected and communicated at a predetermined angle with respect to the water passageway, and a nozzle is provided at the tip of the rotor water passage hole, and high pressure water or hot water introduced from the water passageway is jetted from the nozzle through the rotor water passage hole which is deflected at an inclination. A conical rotor is rotated by the reaction force, and several elastic vanes are provided on the outside of the large diameter side of the conical rotor, one end of each of which is pivotally supported and arranged in the axial direction of the rotor. Braking means that covers the outside of the plate and conical rotor with a cylindrical cover fixed to a water passage shaft, and reduces the nozzle rotation speed by frictional resistance between the cylindrical cover and an elastic vane that opens outward due to rotational centrifugal force. A brake type rotary nozzle with built-in. 2. The damped rotary nozzle according to claim 1, wherein the elastic vane is formed into a rectangular shape from an elastic material such as rubber or soft plastic.