JPS5849457A - Jet nozzle - Google Patents

Abstract

PURPOSE:To elevate a washing effect, by shaping the external form like a projectile, jetting high-pressure water and high-pressure air into the backward direction, too, and obtaining a driving force by its reaction. CONSTITUTION:A nozzle body 8 and a shape holding body 9 are provided consecutively by means of screwing. In the nozzle body 8 and the shape holding body 9, a spacing cylinder 11, a branch cylinder 14 and a shape holding cylinder 16 are fitted and placed consecutively in order from the front. Also, by a space between each inside wall of the nozzle body 8 and the shape holding body, and each outside circumferential surface of the branch cylinder 14 and the shape holding cylinder 16, a high-pressure air flow path 2 is constituted. Also, in the nozzle body 8, from its inside wall side and outside circumferential surface side, ring grooves 17, 18 concentrical to a high-pressure water jet hole 3 are provided on the circumference of each high-pressure water jet hole 3, respectively. Also, both the ring grooves 17, 18 are made to communicate with each other through plural communicating holes 19, and a high-pressure air jet hole 4 is constituted of the ring grooves 17, 18 and the communicating holes 19.

Description

Detailed Description of the Invention The present invention #4 is capable of ejecting high-pressure water and high-pressure air backwards and This invention relates to a jet injection nozzle that generates a strong propulsive force due to the rotation of the ejection body at the tip and jet injection that surrounds high-pressure water with high-pressure air and ejects it forward.

Conventionally, there are ultra-high-pressure washers that eject high-pressure water from an ultra-high-pressure pump from a cleaning nozzle and use this water flow energy to clean various equipment. The cleaning nozzle can be selected and replaced as appropriate. However, with the above-mentioned cleaning machine, for example, if the inner part of a pipe with a narrow cross-sectional opening such as a sewer pipe or a pipe in which several pipes are connected in a non-linear manner becomes clogged, It cannot be washed because the water energy does not reach it.

In view of the above-mentioned conventional Daikoku, the present invention has a bullet-shaped outer shape, injects high-pressure water and high-pressure air backwards to obtain propulsive force from the reaction force, and injects high-pressure water and high-pressure air into high-pressure air. The jet nozzle is designed to penetrate deep into narrow or non-linear pipes to enhance the cleaning effect. A detailed explanation of the system along with a drawing showing an embodiment thereof is as follows.

That is, 1 the structure of the present invention is such that the outer shape is a bullet-shaped layer, a high-pressure water flow path 1 is provided through the center in the longitudinal direction, and a high-pressure air flow path 2 is provided around the high-pressure water flow path IK. The high-pressure water is surrounded by high-pressure air and injected, and furthermore, a plurality of high-pressure water injection holes 3 for propulsion are formed in the shoulder surface on the rear side, communicating and branching from the high-pressure water flow path 1. High-pressure air injection holes 4 connected and branched from the high-pressure air flow path 2 are provided around each high-pressure water injection hole 3 to obtain forward propulsion, while at the tip. , High pressure water flow path IK communication sliver A high pressure water jet hole 6 is bored in the center, and a spiral high pressure air jet hole 6 communicating with the high pressure air flow path 2 is provided around the high pressure water jet hole 5. The gist is that the body 7 is rotatably inserted and held and can be used not only for cleaning but also for excavation.

To explain the configuration in more detail, a nozzle main body 8 and a shape retaining body 9 each formed into a cylindrical shape are connected to each other by screwing. A spacing cylinder 11 having a plurality of through holes 10 formed on the same circle at regular intervals parallel to the part direction, and a plurality of water holes 12 extending outward from the inner wall of the cylinder are bored at regular intervals. A branch cylinder 14 having a plurality of spaced protrusions 13 formed on the outer peripheral surface of the nozzle body 8 and joined to the inner wall of the nozzle body 8; The nozzle main body 8A is formed by kneading and connecting the protrusions 15 and the shape-retaining part 16, and each inner wall of the lit shape and the branch tube 14 are formed using the respective interval protrusions 13 and 15 as spacers. A high-pressure air flow path 2 is formed by a dark space between each outer circumferential surface of the shape-retaining portion 16.

Further, in the nozzle body 8, annular grooves 17° and 18 which are concentric with the high-pressure water injection holes 3 are provided around each high-pressure water injection hole 3 from the inner wall side and the outer surface side of the nozzle body. Both the annular grooves 17 and 18 communicate with each other through a plurality of communication holes 19, and the high pressure air injection hole 4 is constituted by the annular grooves 17 and 18 and the communication hole 19.

I! K, the ejector 7 attached to the tip has the following structure 1
It's fflK. That is, as shown in Figs. 1112 to 11!4, a cylindrical outer body 21 having a mounting member 1120 formed on the periphery of one end has an outer diameter that is approximately the same as the inner diameter of the outer body 21, and a center portion. A high-pressure water jet hole 5 is formed in the inner body 23, and a spiral groove 22 is cut on the outer circumferential surface of the inner body 23.
The fixing plate 24 is applied to one end surface of each of the outer body 21 and the inner body 23, and the screws 25 are used to connect the fixing plate 24 and the outer body 21 to 11!
20 and an inner body 23 are screwed together. A high-pressure air jet hole 6 is formed between the spiral groove 22 and the inner wall of the outer body 21, and one end of the fixing plate 24 is provided with each of the spacer cylinders 11. An annular groove 26 communicating with the through hole 10 is cut, and this annular groove 26
A communication hole 27 is bored through which the and each spiral groove 23 communicate with each other.The ejection body 7 having the above structure is connected to the nozzle body 8.
bearing 28.2.
By screwing the holding cylinder 30 into the recessed part of the nozzle body 8 through the nozzle 9, the holding cylinder 30 is rotatably held.

or,! The usage pattern is shown in Fig. 5, in which the air compressor 31 is connected to the outer pipe connection part 32a of a double metal pipe 32 consisting of an outer pipe and an inner pipe, and the discharge pipe 34 of the high pressure pump 33 is connected to the inner pipe connection part. 32b, and this double metal pipe 32 is connected in communication with a flexible double vinyl pipe 36 wound around a hose reel 35. Furthermore, an injection nozzle k is connected to the double vinyl pipe 36, and an inner pipe 370 External tube 3
7b, the high-pressure water flow path 1 and the high-pressure air flow path 2 are connected to the inner pipe 3 of double vinyl T#36, respectively.
6a and the outer tube 36b so as to communicate with each other. Note that 38° and 39 in the figure indicate packings, respectively.

Next, the operation of the embodiment configured above will be explained.

The high pressure water spouted from the high pressure pump 33 is
The high pressure air from the air compressor 31 is jet-injected from the jet hole 5 through the inner pipe 2 of the double metal pipe 36, the inner pipe 36a of the double vinyl pipe 36, and the high-pressure water passage 1 of the jet nozzle. The jet is injected from the high-pressure air jet hole 6 through the outer pipe of the double vinyl pipe 36, the outer pipe 36b of the double vinyl pipe 36, and the high-pressure air passage 2 of the jet nozzle, and therefore the jetted high-pressure water is surrounded by high-pressure air. The loss of water flow energy of high-pressure water is extremely small, and spray cleaning can be performed efficiently. When praying, since the high-pressure air jet hole 6 is spiral-shaped, the jet body 7 is rotated by the high-pressure air that travels straight at high speed. When the jet body 7 rotates, the high pressure air passage 2 is communicated with the high pressure air jet hole 5 through the annular groove 26, and no inconvenience occurs.

On the other hand, the high-pressure water that has passed through the water passage hole 12 of the branch tube 14 and each high-pressure water injection hole 3 of the nozzle body 8 from the high-pressure air flow path 2 is ejected backward, and the ejected high-pressure water is also ejected from the high-pressure air injection hole. 4 is surrounded by day-pressure air ejected from each ring groove 18 on the outside of the ring groove 18 to prevent loss of water flow energy, and the reaction force of this efficiently ejected high-pressure water causes the injection nozzle to move forward. Propulsive force is generated.

Therefore, if a blockage occurs in the deep part of a narrow pipe or a non-linear pipe, when the injection nozzle of the above embodiment is inserted into the pipe, the dose reel 35 will rotate and the hose reel 35 will be Since the wrapped double vinyl pipe 36 is extended and the injection nozzle 4 enters the pipe line, the container can be washed. If you refuse, for example, when cleaning a conduit that is curved in one direction or a blockage where large debris is firmly attached, the outer shape of the injection nozzle should be bullet-shaped, and the injection nozzle 7 at the tip should be removed. As it rotates, the injection nozzle enters the pipe forcefully without coming into contact with a corner or dirt inside the pipe and stopping. Therefore, this jet injection nozzle must be cleaned 4.
In addition to this, it can also be used to improve soft ground, for example. When praying, the injection nozzle is inserted into the target ground and excavated, and when the injection nozzle is pulled up, the double vinyl pipe 36 is used. It is sufficient to inject concrete milk from the inner pipe 36a and chemical solution such as sodium silicate or sulfuric acid from the outer pipe 36b.Since excavation is effective in all directions, it is suitable for horizontal excavation and vertical excavation. Application completed.

As detailed above, the jet injection nozzle of the present invention has the following features:
Despite its simple and inexpensive configuration, when applied to cleaning, it is extremely easy to clean clogged and fouled pipes, which were impossible to clean in the past. It has the great advantage of being able to be used for excavation because it has a bullet-shaped outer shape and has a powerful propulsive force due to the rotation of the ejector at the tip.

[Brief explanation of drawings]

The drawing shows an embodiment of the jet injection nozzle of the present invention,
Figure 1 is a partially cutaway right side view, Figure 2 is a stop view, Figure 3 is an exploded right side view of the ejector, Figure 4 is a back view of the fixing plate, and Figure 4 is a rear view of the fixing plate.
Figure 5 is a schematic configuration diagram when applied to a jet cleaning machine. 01...High-pressure water flow path, 2... High-pressure air flow path. 3.4... Injection hole, 5... High pressure water injection hole.

Claims (1)

[Claims] (1) The outer shape is bullet-shaped, and a high-pressure water flow path is provided in the longitudinal direction thereof, and a high-pressure air flow path is provided around the high-pressure water flow path. A spiral high-pressure air jet has a high-pressure water jet hole drilled in the center and communicates with the high-pressure water flow path at one end K, which has a thrust jet hole extending to the rear side and communicates with the high-pressure water flow path. A jet injection nozzle, characterized in that the hole is formed by inserting and holding an ejector disposed around the ejection hole so as to freely rotate once.