JPS62258787A - Self-propelling washing nozzle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an improvement of a self-propelled cleaning nozzle for cleaning the inside of a pipe, etc.

<Conventional technology> Conventionally, a self-propelled cleaning nozzle was attached to the tip of an IQ hose, inserted into a pipe to be cleaned such as an IJ) wood pipe, and the cleaning nozzle at the tip was inserted into the pipe to be cleaned through the hose. By jetting high-pressure water, cleaning liquid, or other fluid sent from the pump unit diagonally backward, the jetting reaction force causes the cleaning nozzle to move forward within the pipe to be cleaned, and the jetted fluid removes dirt that has adhered to the inner wall of the pipe. is being cleaned. As shown in FIG. 4, which is a cross-sectional view of an example of the self-propelled cleaning nozzle, the self-propelled cleaning nozzle has a plurality of supply channels 12 recessed in the nozzle body 1) communicating with the outside and directed diagonally rearward. An injection hole 13 is drilled, and a flexible hose 1 is provided at the rear end.
4 are connected.

The high-pressure cleaning liquid supplied from the hose 14 to the nozzle body 1) is injected diagonally backward from the injection hole I3, thereby causing the nozzle body 1) to move forward and cleaning the inner wall surface of the pipe to be cleaned. . According to this, it is possible to easily clean the inside of a narrow pipe.

<Problems to be Solved by the Invention> However, in the conventional self-propelled cleaning nozzle, the orientation direction of the injection hole 13 is fixed with respect to the nozzle body 1).
The injection liquid from the injection holes 13 collides with the inner wall surface of the tube in a spot shape, and as the nozzle advances, the collision point of the injection liquid moves linearly along the longitudinal direction of the inner wall surface of the tube. Therefore, especially when the nozzle travels at a high speed, streaks of the sprayed liquid remain on the inner wall surface of the pipe, which not only prevents uniform cleaning but also causes the hard scale attached to the inner wall surface of the pipe to be removed in the longitudinal direction by the sprayed liquid. There was a problem in that the strip was cut along the line, and there was a risk that it would become a long strip and peel off from the inner wall surface of the tube, clogging the tube and overflowing the cleaning solution.

Conventionally, in order to prevent this, the operator manually removed the hose 14.
By operating the nozzle body 1), the nozzle body 1) is rotated and reciprocated within the pipe, but this requires skill and is nearly impossible if the hose 14 is long.

<Means for Solving the Problems> The present invention solves the problems in the conventional self-propelled cleaning nozzles as described above. The purpose of the present invention is to provide a self-propelled cleaning nozzle that can quickly and uniformly clean the materials by shredding them.

To achieve this object, the self-propelled cleaning nozzle according to the first aspect of the present invention has a self-propelled cleaning nozzle that injects pressurized cleaning fluid supplied from the rear end side diagonally backward and moves forward by the reaction force of the jet. In the traveling type cleaning nozzle, a supply path for the pressurized cleaning fluid having an opening at the rear end is recessed in the nozzle body, and an injection hole that communicates the supply path with the outside and is oriented diagonally rearward is bored. On the other hand, a communication hole is formed in the side of the nozzle body to connect the supply path and the outside, and a hole is formed in the outer circumference of the nozzle body to cover the communication hole in the radial direction penetrating the inner and outer circumferential surfaces. A ring-shaped rotary body having radial injection holes slanted therein is fitted into the ring-shaped rotary body so as to be rotatable about its longitudinal axis.

Further, the configuration of the self-propelled cleaning nozzle according to the second aspect of the present invention is such that the self-propelled cleaning nozzle injects the pressurized cleaning fluid supplied from the rear end side obliquely backward and moves forward by the reaction force of the jet. A supply channel for the pressurized cleaning fluid having an opening at its rear end is recessed in the nozzle body, and a communication hole is bored in the side of the nozzle body to communicate the supply channel with the outside. At the same time, a ring-shaped rotating body covering the communication hole and having radial injection holes drilled in the outer circumferential part of the nozzle body through the inner and outer circumferential surfaces and oriented diagonally rearward and inclined with respect to the radial direction is provided. It is characterized by being inserted and fitted so as to be rotatable around the axis.

Function> In the first aspect of the present invention, the cleaning fluid supplied to the supply path of the nozzle body is jetted diagonally backward of the nozzle body from the jet hole, and the jet reaction force causes the nozzle body to move forward. It moves by itself and cleans the surface to be cleaned. Furthermore, the cleaning fluid supplied to the supply path passes through the communication holes and is radially injected from the radial injection holes of the ring-shaped rotating body. Since the radial injection holes are inclined with respect to the radial direction, the ring-shaped rotating body is rotated by the reaction force of the injection, and therefore the cleaning fluid from the radial injection holes is sprayed while rotating around the longitudinal axis. As a result, the surface to be cleaned is thoroughly collided with the surface to be cleaned.

Further, in the second aspect of the invention, the cleaning fluid supplied to the nozzle body passes through the communication hole and is radially injected from the radial injection holes of the ring-shaped rotating body. Since the radial injection holes are inclined with respect to the radial direction, the ring-shaped rotating body is rotated by the reaction force of the injection, and since the radial injection holes are oriented diagonally backward, the cleaning fluid is O; While rotating around the rear axis, the nozzle body is sprayed diagonally backward, causing the nozzle body to self-propel forward and the cleaning fluid colliding with the surface to be cleaned, cleaning the surface. .

<Example> Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a self-propelled cleaning nozzle according to a first embodiment of the present invention, and FIG. 2 is a sectional view taken along the line 1--2 in FIG. As shown in FIGS. 1 and 2, the nozzle body 21 has a recessed supply path 22 having an opening at its rear end, and can be connected to the rear end of the nozzle body 21 via a screw 23. A flexible hose 24 supplies pressurized cleaning fluid into its supply path 22 . A plurality of injection holes 25 are formed in the circumferential direction on the side near the rear end of the nozzle body 21 and communicate the supply path 22 with the outside and are oriented diagonally rearward. A step with a smaller outer diameter is provided on the side portion, and a plurality of communication holes 26 are bored in the circumferential direction to communicate the supply path 22 with the outside. This nozzle body 2
A ring-shaped rotary body 27 is fitted into the outer periphery of the step part 1 so as to be rotatable around an axis in the front-rear direction so as to cover the communication hole 26, and the ring-shaped rotary body 27 is inserted into the outer periphery of the step part 1 so as to be rotatable around an axis in the front-rear direction. The removal is prevented from falling.

The ring-shaped rotating body 27 has a groove 29 formed all around the inner circumferential surface of the ring body 21 facing the communication hole 26. A plurality of radial injection holes 30 are provided in the circumferential direction, passing through the inner and outer circumferential surfaces of the ring-shaped rotating body 27 through n29. As shown in FIG. 2, the radial injection holes 30 are each inclined in the same direction at a predetermined angle α (30 @ in this embodiment) IIJ'i with respect to the radial direction.

In such a self-propelled cleaning nozzle, the high-pressure cleaning fluid supplied from the flexible hose 24 into the supply path 22 of the nozzle body 21 is directed obliquely to the rear of the nozzle body 21 from the injection hole 25. As a result, the nozzle body 21 moves forward by itself due to the reaction force of the jet and cleans the surface to be cleaned. Further, a part of the cleaning fluid supplied to the supply path 22 is injected from the communication hole 26, passes through the groove 29 of the ring-shaped rotating body 27 mounted so as to cover it, and exits from the radial injection hole 30. Injected. At this time, since the radial injection holes 30 are inclined with respect to the radial direction, the ring-shaped rotating body 27 is rotated by the injection reaction force. Therefore, the cleaning fluid from the radial injection holes 30 flows through the nozzle body 2.
The jet is sprayed while rotating at high speed around the longitudinal axis of the nozzle body 21, and as the nozzle body 21 moves forward, it collides with the surface to be cleaned in a spiral pattern, removing fine scales attached thereto. The ring-shaped rotating body 27 is divided into pieces and cleaned.The radial injection holes 30 formed in the ring-shaped rotating body 27 are directed diagonally backward, so that the self-propelling force can be obtained forward by the reaction force of the injection. You may also do so.

Moreover, FIG. 3 is a longitudinal sectional view of a self-propelled cleaning nozzle according to an embodiment of the second invention.

In this self-propelled cleaning nozzle, as shown in FIG. 3, a supply passage 32 is provided in the nozzle body 31 in the same way as in the previous example, and pressurized cleaning fluid is supplied thereto from a flexible hose 33. A plurality of communication holes 34 are bored in the side of the nozzle body 31 in the circumferential direction to communicate the supply path 32 with the outside, and a ring-shaped rotating body 35 is provided on the outer periphery of the nozzle body 31 to cover the communication holes 34. is inserted and fitted so as to be rotatable around an axis in the front-rear direction, and is prevented from being removed by a tip fitting 36.

Similar to the previous example, this ring-shaped rotating body 35 has a groove 37 formed on its inner circumferential surface facing the communicating hole 34 of the ring body 31, and passes through the inner and outer circumferential surfaces of the ring-shaped rotating body 35 through this groove 37. A plurality of radial injection holes 38 are provided in the circumferential direction. The radial injection holes 38 are arranged in the same direction at a predetermined angle α with respect to the radial direction, as in the previous example shown in FIG.
tilted and diagonally backward at a predetermined angle β (in this example, 60
°) Slanted. In addition, in FIG. 3, the ring-shaped rotating body 35 is shown, for convenience, in a cross section taken along a plane inclined by the predetermined angle α.

In such a self-propelled cleaning nozzle, the high-pressure cleaning fluid supplied from the flexible hose 33 into the supply path 32 of the nozzle body 31 passes through the communication hole 34 to the ring-shaped rotating body 35. It is radially injected from the radial injection holes 38. At this time, since the radial injection holes 38 are inclined with respect to the radial direction, the ring-shaped rotating body 35 is rotated by the reaction force of the injection, and since the radial injection holes 38 are oriented obliquely backward, the cleaning The fluid is injected diagonally rearward of the nozzle body 31 while rotating at high speed around the longitudinal axis. Thereby, the nozzle main body 31 moves forward, and the cleaning fluid collides against the surface to be cleaned in a spiral manner, cutting the scale adhering thereto into fine pieces and cleaning the surface.

In this embodiment, the nozzle body 31 is not provided with any injection holes, but even if the ring-shaped rotating body 35 is provided with radial injection holes 38 directed diagonally backward, Directional injection holes may also be provided.

<Effects of the Invention> As described above in detail with reference to embodiments, according to the present invention, the nozzle self-propels forward due to the jetting reaction force of the cleaning fluid, and the jetting direction of the cleaning fluid is determined by the direction of the nozzle. Since the cleaning fluid rotates at high speed around the axis in the traveling direction, the cleaning fluid is uniformly sprayed onto the surface to be cleaned, thereby preventing streaks caused by the cleaning fluid from remaining on the surface to be cleaned.

Furthermore, since the scale adhering to the surface to be cleaned is divided into fine pieces, subsequent ejection is easily performed, and therefore there is no need for the operator to rotate or reciprocate the nozzle, and it takes a short time. This allows for even cleaning.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a self-propelled cleaning nozzle according to an embodiment of the first invention, FIG. 2 is a sectional view taken along If-II in FIG.
FIG. 3 is a longitudinal cross-sectional view of a self-propelled cleaning nozzle according to an embodiment of the second invention, and FIG. 4 is a longitudinal cross-sectional view of a self-propelled cleaning nozzle according to a conventional example. In the drawing, 21.31 is a nozzle body, 22.32 is a supply path, 25 is an injection hole, 26.34 is a communication hole, 27.35 is a ring-shaped rotating body, and 30.38 is a radial injection hole. Patent application Jinfuji High Pressure Washing Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4

Claims (2)

[Claims] (1) In a self-propelled cleaning nozzle that injects pressurized cleaning fluid supplied from the rear end side obliquely backward and moves forward by the jet reaction force, the cleaning nozzle has an opening at the rear end of the nozzle body. A pressurized fluid supply passage is recessed and an injection hole is formed that communicates the supply passage with the outside and is oriented diagonally rearward, while a side portion of the nozzle body communicates the supply passage with the outside. A ring-shaped rotating body is provided on the front and rear sides of the nozzle body, in which a communicating hole is drilled to cover the communicating hole, and radial injection holes that penetrate the inner and outer circumferential surfaces of the nozzle body and are inclined to the radial direction are bored in the outer circumference of the nozzle body. A self-propelled cleaning nozzle characterized by being inserted so that it can rotate freely around an axis. (2) In a self-propelled cleaning nozzle that injects pressurized cleaning fluid supplied from the rear end side obliquely backward and moves forward by the jet reaction force, the cleaning nozzle has an opening at the rear end of the nozzle body. A pressure fluid supply path is recessed, and a communication hole is formed in the side of the nozzle body to communicate the supply path with the outside. It is characterized by a ring-shaped rotating body having radial injection holes that penetrate the circumferential surface and are oriented diagonally rearward and inclined with respect to the radial direction, and is fitted so as to be rotatable around its longitudinal axis. Self-propelled cleaning nozzle.