JPH0380064B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a snow melting device for melting snow on an orbit.

Snowfall in orbit often accumulates as snow,
This is extremely dangerous for train operation, and conventional snow melting equipment has been used to remove snow by spraying water or warm water onto the track surface.However, conventional equipment uses a jet pipe to rotate using the reaction of jetting water. Because of this, the turning speed was too fast and the snow melting effect was not sufficient. In addition, with conventional devices, the distance the water flies is always constant unless the water pressure is changed, so when the water pressure is high, the distance the water flies is long and there is a risk that the water spray surface will become annular.

In view of the above points, it is an object of the present invention to provide a snow melting device in which the turning speed of the jet pipe is slow and the flying distance can be alternately switched between far and near. In order to achieve this, a rotary joint tube is rotatably crowned on a tube shaft that is erected in communication with a riser pipe of a water pipe, and the tube shaft and the rotary joint tube are sealed at their lower ends. Outer circumference of rotary joint tube
A pair of jet pipe joints each having a water guide hole formed in a 180-degree symmetrical position is provided to protrude in the radial direction, a jet pipe is attached to the tip of each jet pipe joint, and a jet pipe is attached to the peripheral wall of the cylinder shaft to connect to each of the water guide holes. A water outlet is formed to communicate with the rotary joint tube, a swinging blade is installed on the upper part of the rotary joint tube, and the rotary joint tube and the rocking blade are connected via a tension spring to connect the rotary joint tube to the rotary joint tube. The swinging blade is elastically biased in one rotation direction, a contact protrusion with which the swinging blade abuts is formed on each of the jet pipe joints, and each end of the swinging blade receives the jetted water and swings. A saucer-shaped reflector plate is provided for rotationally displacing the rotor blade, and a water holding plate is further arranged radially outward of the reflector plate to divert the jetted water,
It is characterized in that the water holding plate is fixed to the rotary joint cylinder.

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

Reference numeral 1 designates a cylinder shaft whose upper end stops at the beginning, and a peripheral edge 3 is formed on the outer periphery of the midsection to be rotatably inserted into a rotary joint cylinder 2, which will be described later. is configured. The rotary joint cylinder 2 includes a cylinder hole part 5 which is slidably and rotatably fitted onto the communication part 4 of the cylinder shaft 1, and an outer cylinder part 6 which extends downward beyond the peripheral edge 3. On the side of the cylindrical hole part 5, jet pipe joint parts 7, 7 are protruded in a diagonal direction at symmetrical positions displaced by 180 degrees, and a pipe thread is screwed into each end, and a pipe joint part 7 is connected to the pipe thread. Water introduction holes 8, 8
is opened facing the inner wall of the cylindrical hole portion 5. In addition, an annular retaining ring 10 rotatably inserted into the shaft cylinder part 9 of the cylinder shaft 1 is screwed into a female thread threaded on the inner periphery of the lower end of the outer cylinder part 6. In the cylindrical space A of the shaft cylindrical portion 9, there are a peripheral edge 3 and a presser ring 1.
It is obtained by interpolating washers 11 between 0 and 0. Furthermore, a washer 11 is inserted between the lower end of the cylinder hole 5 and the peripheral edge 3, and the cylinder shaft 1 and the lower end of the rotary joint cylinder 2 are completely sealed by these, and the rotary joint cylinder 2 is connected to the cylinder shaft. It will rotate relative to 1. Also 12,
Reference numeral 12 designates jet pipes that are screwed and connected to the tips of the jet pipe joints 7, 7, respectively, and the jet ports 13, 13 are opened at the tips, and a water holding plate 15 is provided at the end of the elongated rod 14 extending from the tips. are integrally formed. Two water outlet holes 16, 16 are drilled in the communication part 4 which is in sliding contact with the cylindrical hole part 5 of the rotary joint tube 2 and are unevenly distributed on one side at the height of the water guide hole 8. , 16, and upper and lower annular small grooves 17a, 17b that do not communicate with the water outlet hole 16 are formed on the outer periphery, and the lower annular groove 17 is formed in the center of the spaced side of both the water outlet holes 16, 16. A small through hole 18 communicating with the drain hole 17b is drilled, and another small through hole 18a is drilled at a position adjacent to one of the water outlet holes 16. Further, reference numeral 19 denotes a swinging blade in which a shaft hole 21 is rotatably inserted into a fixed shaft 20 which is erected and fixed at the upper end of the rotary joint cylinder 2, and a recess 2 formed on the periphery of the shaft.
2 has a tension spring 24 interposed between it and an end plate 23 which is disposed on a stepped portion 20a provided at the end of the fixed shaft 20. The swing blade 19 is fixed in the moving position so as not to rotate, and the swing blade 19 is elastically biased clockwise with respect to the swing joint cylinder 2. At the tips of the side arms 26, 26 that protrude on both sides of the swinging blade 19, there is a partition plate 27 facing the back of a water retaining portion fixed to the outside of the jet pipe 12, and a reflecting plate curved in a circumferential direction. 2
8 is integrally formed, and the rotation joint cylinder 2
The side arms 26, 26 abut against the abutment protrusions 29, 29 protruding from the jet pipe joints 7, 7, respectively, and the rotary joint tube 2 and the swing blade 19 have a swing range of 180 degrees. You will be able to rotate together while doing so. In addition, 30 in the figure
is a cap for protecting the tension spring 24.

In the snow melting device having the above configuration, when water or oil is supplied from the riser pipe, water or hot water flows through the cylinder shaft 1 from the water outlet holes 16, 16 to the water guide holes 8, 8, It ejects forcefully from exit 13. At this time, due to the elasticity of the tension spring 24, the side arms 26, 26 are moved against the contact protrusions 29, 29.
The spout 1 of the spout pipes 12, 12
3 and 13 open toward the slopes of the reflecting plates 28 and 28, the water jetted out from the jet ports 13 and 13 hits the reflecting plates 28 and 28 and is reflected in the circumferential direction, causing the swing blades to 19 momentarily obtains a counterclockwise torque, leaving the rotary joint cylinder 2 behind and being rotated. For this reason, the water spouted from the spout 13 comes off the reflection plate 28 and jumps out, causing the water holding plate 1
It hits 5 and scatters. Regarding the jet pipe 12,
It is possible to adjust the watering range by preparing water holding plates 15 with different inclination angles for both long and short distances and replacing them depending on the purpose. When the jetted water no longer comes into contact with the reflecting plates 28, 28, the torque is removed, and the tension spring 24 elastically returns to its original position, causing the swinging blade 19 to rotate clockwise and move its side arm 26, 26
collides with the contact protrusions 29, 29, and the swinging blades 19 and the rotary joint tube 2 are rotated slightly to the right from their original positions. By repeating this, the rotary joint tube 2 is intermittently rotated relative to the tube shaft 1, and the rotation speed is adjusted by changing the elastic force of the tension spring 24 by rotating the end plate 23. be able to.

Water ejected from the spout 13 due to intermittent rotational displacement of the rotary joint tube 2 is transferred to the reflection plate 28 and the water holding plate 1.
5, and when it hits the reflecting plate 28, it scatters far away from the device, and when it hits the water holding plate 15, it scatters relatively close to the device. Therefore, this makes it possible to spray water evenly over the area to be watered, and when the water pressure is high, the distance of the water being sprayed is long and the spray surface becomes annular, which is an inconvenience. Never.

In addition, as the rotary joint cylinder 2 rotates, the cylinder shaft 1
The water outlet holes 16, 16 have a position where they communicate directly with the water guide holes 8, 8, and a position where they communicate via the annular small groove 17. Therefore, the water outlet holes 16, 16
At the position where there is direct communication with the water outlet, the flow rate of water increases and the water ejected from the spout 13 is scattered far, but at the position where there is communication through the annular groove 17, the flow rate of water decreases and the water ejected from the spout 13 is scattered. The distance becomes shorter. In addition, since the water outlet holes 16, 16 are arranged unevenly on one side, the water sprinkling surface B is on one side of the snow melting device.
It has a shape that extends long in the front-rear direction, and when installed beside a track, it sprays water along the track.

As explained above, the snow melting device of the present invention is characterized by exhibiting an excellent snow melting effect because the jet pipe is rotated intermittently and gently. In addition, a reflector and a water retainer were installed on the extension line of the jet tube, and the water ejected from the jet was alternately applied to the reflector and the water retainer to change the flying distance in two ways, making it possible to target the water spraying target. It can be scattered evenly over the area.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of a track snow melting device according to an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a partially cutaway front view of a cylinder shaft, and FIG. Third
5 is a developed view of the communication portion, and FIG. 6 is an explanatory view showing the water sprinkling surface during use. 1...Cylinder shaft, 2...Rotary joint cylinder, 3...Periphery,
4...Communication part, 5...Cylinder hole part, 6...Outer cylinder part, 7
... Jet pipe joint part, 8 ... Water guide hole, 9 ... Shaft cylinder part,
10... Presser ring, 11... Washer, 12...
...Ejection pipe, 13...Ejection port, 14...Elongated rod, 15...
...Water holding plate, 16... Water outlet, 17... Annular small groove, 18... Small through hole, 19... Rocking blade, 20...
Fixed shaft, 21... shaft hole, 23... end plate, 24...
Tension spring, 25...Kottata pin, 2
6... Side arm, 27... Partition plate, 28... Reflector plate,
29...Abutting protrusion, 30...Cap.

Claims (1)

[Claims] 1. A rotary joint tube 2 is rotatably mounted on a tube shaft 1 that is installed upright in communication with a riser pipe of a water pipe, and the tube shaft 1 and the rotary joint tube 2 are sealed at their lower ends, A pair of jet pipe joint parts 7 each having a water guide hole 8 formed therein are provided at 180 degrees symmetrical positions on the outer periphery of the rotary joint cylinder 2, protruding in the radial direction, and a jet pipe 12 is attached to the tip of each jet pipe joint part 7. , a water outlet hole 16 communicating with each of the water introduction holes 8 is formed in the peripheral wall of the cylinder shaft 1, and a swing blade 19 is installed on the upper part of the rotation joint cylinder 2, so that it can swing with the rotation joint cylinder 2. The blades 19 are connected to each other via a tension spring 24 to elastically urge the swing blades 19 in one rotational direction with respect to the rotary joint tube 2, so that the swing blades 19 are connected to the respective jet pipe joints 7. A saucer-shaped reflecting plate 2 formed with abutting protrusions 29 that abut each other and receiving jetted water at both ends of the swinging blade 19 to rotationally displace the swinging blade 19.
8, a water holding plate 15 for diverting the jet water outward in the radial direction of the reflecting plate 28 is further arranged, and the water holding plate 15 is fixed to the rotary joint tube 2.