JP2021008787A - Protective device for track snow melting nozzle - Google Patents

Abstract

To provide a protective device for a track snow melting nozzle having less damage from falling snow and ice from a train.SOLUTION: A protective device for a snow melting nozzle, comprising a main protective member (21) formed of an elastic material and coupled to a horizontal part (12) of a snow melting nozzle (10) of an object to be protected, a clip member (22) engaged with a rising part (11) from a track of the snow melting nozzle, and coupling means (30) for coupling the main protective member and the clip member, the main protective member having an inclined plane formed on the side where the train is coming and having an engaging recess (21b) upwardly from the undersurface with which the horizontal part of the snow melting nozzle can be engaged, the clip member being provided with a first portion capable of engaging with the rising part of the snow melting nozzle and a second portion capable of engaging with the engaging recess of the main protective member, at least the first portion being formed of an elastic material, and the main protective member and the clip member being coupled by the coupling means while the first portion fits into the engaging recess of the main protective member.SELECTED DRAWING: Figure 1

Description

According to the present invention, the nozzle constituting the snow melting device that injects warm air or hot water toward the crossing portion of the turnout of the railway track to melt and remove the snow ice is not damaged by the snow ice falling from the running train. Regarding the protection device for the orbital snowmelt nozzle that protects the vehicle.

The turnout of the railroad track is composed of a point part, a lead part, a crossing part and a guide rail in a complicated manner. Of these, the point part is a movable part, so the point part freezes in a snowy cold region. As a result, a situation may occur in which conversion becomes impossible. Therefore, conventionally, hot air or hot water is sprayed toward the crossing part of the turnout so that the point does not change due to the intervention of snow and ice on the turnout of the railway, and the snow and ice are melted and removed. A snow melting device is installed.
As a snow melting device that injects hot water or the like toward the crossing portion of the turnout to melt and remove the snow ice, for example, as disclosed in Patent Document 1, a nozzle that injects hot water toward the crossing portion. A snow melting device equipped with is known.

Japanese Unexamined Patent Publication No. 2001-279633 Japanese Unexamined Patent Publication No. 2012-144922

In the snow melting device disclosed in Patent Document 1, since the nozzle for injecting hot water toward the crossing portion is arranged between the rails in the track through which the vehicle passes above, the snow and ice falling from the traveling train May be damaged. Therefore, in the ballast track, a technique is known in which a box-shaped metal snowfall cover is provided so as to cover the upper part of the nozzle by using sleepers to protect the snowmelt nozzle from snowfall. However, there is a problem that it is difficult to apply the slab track because there is no sleeper for installing the snowfall cover as described above.
Regarding a protection device for track parts in a slab track, an invention relating to a rubber protective plate for protecting a cable arranged so as to cross the track from falling snow has been proposed (Patent Document 2).

However, where is the protective plate of Patent Document 2 installed? Since it is the outside of the rail and the protection target is a straight cable laid on the track surface, the installation work is relatively easy. On the other hand, the protection device for the track snow melting nozzle of the present invention is to be installed in a narrow place such as between the basic rail and the guide rail, and anchor bolts cannot be provided and is a protection target. Since the shape of the nozzle is also complicated, there is a problem that a protective plate as in Patent Document 2 cannot be used.
The present invention has been made in view of the above problems, and is particularly suitable for installation in a crossing portion of a slab track, and prevents the snow melting nozzle from being damaged by falling snow and ice from a train. It is an object of the present invention to provide a protective device for a nozzle for orbital snowmelt capable.

In order to achieve the above object, the present invention
A main protective member formed of an elastic material and engaged with the horizontal portion of the snow melting nozzle to be protected, a clip member engaged with the rising portion of the snow melting nozzle from the track, the main protective member and the clip. In a protective device for a nozzle for orbital snowmelt provided with a connecting means for connecting members.
The main protective member has an inclined surface formed on the side where the train travels, and an engaging recess with which the horizontal portion of the snowmelt nozzle can engage is formed from the lower surface upward.
The clip member includes a first portion that can be engaged with the rising portion of the snow melting nozzle and a second portion that can be fitted into the engaging recess of the main protective member, and at least the first portion is an elastic material. Formed by
The first portion of the clip member is fitted into the engaging recess of the main protection member, and the main protection member and the clip member are connected by the coupling means. ..

According to the above means, since the main protective members are each made of an elastic material and an inclined surface is formed on the front side, a snow ice block that has fallen off from the running train collides with the main protective member. Can also absorb shocks. As a result, it is possible to prevent the snow melting nozzle from being damaged by the falling snow and ice. In addition, by setting the angle of the inclined surface appropriately, the snow and ice mass after the collision can be released in the direction of travel of the train without bouncing upward, and the snow and ice that collided with the main protective member bounces upward and the underfloor configuration of the train. It is possible to reduce damage to the member. Furthermore, since the clip member is fitted to a part of the main protective member, the entire protective device can be constructed compactly, and the snow melting nozzle installed in a narrow place such as a crossing portion is protected. be able to.

Here, preferably, a pair of bolt insertion holes extending from the surface side to the inner wall surface of the engaging recess are formed in the rear wall of the main protective member at positions separated by a predetermined distance in the vertical direction.
Male screw portions at both ends of the U bolt engaged with the horizontal portion of the snow melting nozzle inside the engaging recess were inserted into the pair of bolt insertion holes and protruded from the rear wall of the main protective member. The nuts are screwed into the male screw portions.
According to such a configuration, the main protective member can be fixed to the horizontal portion of the snowmelt nozzle by the U bolt, thereby preventing the main protective member from coming off the snowmelt nozzle or shifting laterally. it can.

Also, preferably, the pair of bolt insertion holes should be elongated holes in the horizontal direction. As a result, the position of the main protective member 21 with respect to the nozzle can be easily adjusted.
Further, the second portion of the clip member is integrally formed with the elastic material together with the first portion.
A vertical slit reaching the first portion is formed in the second portion in a state of being engaged with the rising portion of the snow melting nozzle.
As a result, the slit of the second portion can be deformed so as to widen, and the clip member can be easily attached to the rising portion of the snow melting nozzle.

Further, preferably, a bolt insertion hole is formed in the second portion of the clip member at a position intersecting the slit so as to horizontally penetrate the second portion.
In the lower part of the main protective member, a bolt insertion hole is formed at a portion corresponding to the bolt insertion hole of the second portion fitted in the engagement recess.
The coupling means is a coupling bolt inserted so as to penetrate the bolt insertion hole of the second portion and the bolt insertion hole formed in the lower part of the main protective member.
As a result, the main protective member and the clip member can be firmly connected by the connecting bolt, which can more reliably prevent the main protective member from coming off the snow melting nozzle or shifting laterally. it can.

Further, preferably, the coupling means includes a rear wall side presser plate joined to the rear wall of the main protective member and a front wall side presser plate joined to the lower part of the front wall of the main protective member. ,
The rear wall side pressing plate and the front wall side pressing plate are joined to the rear wall and the front wall of the main protective member, respectively, and correspond to the bolt insertion holes formed in the lower part of the main protective member. A bolt insertion hole is formed in the part,
The connecting bolt is inserted so as to penetrate the bolt insertion hole formed in the rear wall side pressing plate, the lower part of the main protective member, the second portion of the clip member, and the front wall side pressing plate. By screwing the nut into the male screw portion at the tip, the main protective member and the clip member are connected to each other.

According to the above configuration, since the lower part of the main protective member can be sandwiched between the rear wall side pressing plate and the front wall side pressing plate, both can be joined, so that the main body is made of an elastic material. It is possible to prevent the protective member from being damaged by the tightening force of the nut screwed into the connecting bolt or the impact force of the snow and ice block colliding with the main protective member, and it is possible to enhance the durability of the protective device.

According to the present invention, a protective device for a track snowmelt nozzle that can be easily installed in a crossing portion of a slab track and can prevent the snowmelt nozzle from being damaged by falling snow ice from a train is realized. It has the effect of being able to.

An embodiment of the orbital snowmelt nozzle protection device according to the present invention is shown, (A) is a perspective view showing a state of the snowmelt nozzle before the protection device is attached, and (B) is a snowmelt protection device. It is a perspective view which shows the state which attached to the nozzle. The details of the main protective member constituting the protection device for the orbital snow melting nozzle of the embodiment are shown, where (A) is a front view, (B) is a side view, and (C) is a rear view. The details of the clip member constituting the protection device of the orbital snow melting nozzle of the embodiment are shown, where (A) is a plan view, (B) is a side view, and (C) is a plan view showing an open state. A specific example of a joint fitting for connecting the main protective member and the clip member is shown, (A) is a diagram showing a rear wall side pressing plate constituting the joint fitting, and (B) is a diagram showing a U bolt. (C) is a diagram showing a front wall side pressing plate, and (D) is a diagram showing connecting bolts and nuts. A state in which the main protective member and the clip member are combined and attached to the snow melting nozzle is shown, where (A) is a front view, (B) is a side view, and (C) is a plan view.

Hereinafter, embodiments of the orbital snowmelt nozzle protection device according to the present invention will be described in detail with reference to the drawings. In the following description, the side facing the traveling train is referred to as the front side, and the opposite side is referred to as the rear side.
FIG. 1 (A) is a perspective view showing a state of the snow melting nozzle before the protective device according to the present invention is attached, and FIG. 1 (B) is a perspective view showing a state in which the protective device of the embodiment is attached to the snow melting nozzle. , FIG. 2 is a plan view, a front view and a side view of a cross section showing details of a main protective member constituting the orbital snowmelt nozzle protection device of the embodiment, and FIG. 3 constitutes an orbital snowmelt nozzle protection device of the embodiment. It is a top view, a front view and a cross-sectional side view which show the details of a clip member.

As shown in FIG. 1A, the snow melting nozzle 10 to be protected before the protective device is attached includes, for example, a rising portion 11 rising from the track surface between the basic rail R1 and the guide rail R2 of the crossing portion. A horizontal portion 12 extending horizontally from the rising portion 11 in a direction orthogonal to the rail, and an injection portion 13 extending horizontally from the end of the horizontal portion 12 in a direction parallel to the rail are provided. The lower end of the rising portion 11 is connected to the hot air supply pipe embedded in the track, and the other end of the hot air supply pipe is connected to the pump or the heater, and the hot air is supplied from the injection portion 13. It is configured to melt the snow and ice adhering to the side surface of the rail by ejecting it along the abdominal side surface of the basic rail R1.

As shown in FIG. 1 (B), the orbital snowmelt nozzle protection device 20 of the present embodiment includes a trapezoidal main protection member 21 that protects the horizontal portion 12 of the snowmelt nozzle 10 and the main protection member 21. A clip member 22 is provided below and engaged with the rising portion 11 of the snow melting nozzle 10 to prevent the main protective member 21 from coming off, and the front side with the inclined surface 21a is the snow melting nozzle 10. It is mounted so as to face the direction opposite to the injection portion 13.
Further, the main protective member 21 and the clip member 22 are made of an elastic material such as hard rubber. As the hard rubber which is a material for forming the main protective member 21 and the clip member 22, for example, a proroprene having a hardness of about 65 can be considered.

Next, the shapes and functions of the main protective member 21 and the clip member 22 will be described with reference to FIGS. 2 and 3, FIG. 2 shows details of the main protective member 21 constituting the protective device 20 of the present embodiment. It is shown. Of these, (A) is a front view, (B) is a side view, and (C) is a rear view.
As shown in FIG. 2B, the main protective member 21 has an inclined surface 21a having a predetermined angle (for example, 32 °) formed on the front surface (the surface on the right side in the drawing) and is substantially in the center. An engaging recess 21b having a size into which the horizontal portion 12 of the snow melting nozzle 10 can be inserted is formed downward, and a type is formed below the downstream side of the inclined surface 21a, that is, below the front end of the main protective member 21. A notch 21c is formed to avoid interference with parts on the track side such as a rate.

The reason why the left wall (rear wall) of the engaging recess 21b is thin is that the rear wall is deformed to widen the opening on the lower side of the engaging recess 21b so that the horizontal portion 12 of the snow melting nozzle 10 is formed. This is to let it pass. Further, as shown in FIG. 2C, a downward bolt insertion slit 21d is formed in the center of the lower part of the rear wall of the main protective member 21, and is located at an intermediate height position with the upper part of the rear wall. , Horizontal elongated holes 21e1 and 21e2 are formed in parallel. Further, although not particularly limited, notches 21f1 and 21f2 are formed on both sides of the lower part of the rear wall of the main protective member 21.
Further, as shown in FIG. 2A, a bolt insertion hole is formed in a portion sandwiched between the engaging recess 21b and the notch 21c at the lower part of the main protective member 21 so as to face the slit 21d. 21 g is formed.

FIG. 3 shows the details of the clip member 22 constituting the protection device for the orbital snow melting nozzle of the embodiment. Of these, (A) is a plan view, (B) is a side view, and (C) is a plan view showing an open state.
As can be seen from FIGS. 3 (A) and 3 (B), the clip member 22 has a substantially rectangular parallelepiped shape as a whole, and as shown in FIG. 3 (B), the snow melts at a position slightly deviated from the center. An engaging hole 22a that can be engaged with the rising portion 11 of the nozzle 10 is formed, and a slit 22b is formed in the vertical direction from the tip portion toward the engaging hole 22a.

Further, as shown in FIG. 3A, a long hole 22c for inserting a bolt is formed in the horizontal direction at a position not intersecting with the engaging hole 22a so as to be orthogonal to the slit 22b.
As described above, since the clip member 22 of the present embodiment is formed with a slit 22b reaching the engaging hole 22a, the clip member 22 opens the slit 22b as shown in FIG. 3C. As a result, the clip member 22 can be easily engaged with the rising portion 11 of the snow melting nozzle 10.

FIG. 4 shows the details of the joint fitting 30 for connecting the main protective member 21 and the clip member 22. The joint fitting 30 is made of metal and is screwed onto the rear wall side pressing plate 31, the U bolt 32, the front wall side pressing plate 33, the connecting bolt 34 and the nut 35, and the end of the U bolt 32. It consists of a nut 36 to be fitted (see FIG. 5A).
Of FIGS. 4A to 4D, FIG. 4A is a diagram showing an example of a rear wall side pressing plate 31 constituting a fitting, FIG. 4B is a diagram showing an example of a U bolt 32, and FIG. 4C is a diagram showing an example of a U bolt 32. The figure which shows the example of the front wall side holding plate 33, (D) is the figure which shows the example of the coupling bolt 34 and the nut 35.

As shown in FIG. 4A, the rear wall side pressing plate 31 has substantially the same shape as the rear wall of the main protective member 21 of FIG. 2C, and faces downward at the center of the lower portion. The bolt insertion slit 31d is formed, and a pair of elongated holes 31e1 and 31e2 are formed in the horizontal direction at the upper part and the intermediate height position of the rear wall. The vertical width of the elongated holes 31e1 and 31e2 is such that the end of the U bolt 32 shown in FIG. 4 (B) can be inserted, and the distance between the elongated holes 31e1 and 31e2 is the U bolt 32. It is the same as the distance between both ends. Male screw portions 32a and 32b are provided at both ends of the U bolt 32.
As shown in FIG. 4C, the front wall side pressing plate 33 has a rectangular shape, and a bolt insertion hole 33a through which the bolt 34 of FIG. 4D can be inserted is formed in the center. As shown by the broken line in FIG. 4D, the front wall side pressing plate 33 may be welded and integrated with the head of the bolt 34.

FIG. 5 shows a state in which the main protective member 21 and the clip member 22 are combined and attached to the snow melting nozzle 10. Of these, (A) is a front view, (B) is a side view, and (C) is a plan view.
As shown in FIG. 5A, the main protective member 21 is arranged so that the horizontal portion 12 of the snow melting nozzle 10 is located at the back of the engaging recess 21b, and the snow melting nozzle 10 is located. The U bolt 32 is set in the horizontal portion 12 in a horizontal position, and the male screw portions 32a and 32b penetrate the elongated holes 21e1 and 21e2 of the main protective member 21 and the elongated holes 31e1 and 31e2 of the rear wall side pressing plate 31. Nuts 36 are screwed to the tips thereof. Since the male screw portions 32a and 32b of the U bolt 32 are inserted through the elongated holes 21e1 and 21e2 and the elongated holes 31e1 and 31e2, the position of the main protective member 21 with respect to the nozzle can be easily adjusted.

Further, the tip end side of the clip member 22 attached to the rising portion 11 of the snow melting nozzle 10 is inserted into the lower portion of the engaging recess 21b of the main protective member 21, and the bolt insertion hole 21 g of the main protective member 21 and the clip member 22 are inserted. The coupling bolt 34 is inserted so as to penetrate the elongated hole 22c of the above, the slit 21d of the main protection member 21, and the slit 31d of the rear wall side pressing plate 31, and the nut 35 is screwed into the tip to protect the main protection. The member 21, the clip member 22, and the rear wall side pressing plate 31 are connected.

As described above, since the protective device 20 of the present embodiment is equipped with the main protective member 21 made of hard rubber so as to cover the horizontal portion 12 of the snow melting nozzle 10, the snow that has fallen off from the traveling train. The snow melting nozzle can be protected from ice blocks. Further, since the inclined surface 21a is provided on the side of the main protective member 21 where the train travels, the snow and ice blocks that have fallen off the train and collided with each other can escape in the train traveling direction without bouncing upward. .. As a result, it is possible to prevent the snow and ice mass colliding with the main protective member 21 from bouncing upward and hitting the underfloor component of the train, thereby reducing damage to the underfloor component of the train and the main protective member itself. it can.

Further, since the rear wall side pressing plate 31 and the front wall side pressing plate 33 can be bonded to each other while sandwiching the lower portion of the main protective member 21, the main body is made of an elastic material (hard rubber). It is possible to prevent the protective member 21 from being damaged by the force when the nut 35 of the coupling bolt 34 or the nut 36 fixing the U bolt 32 is tightened or the impact force of the snow ice block that collides with the main protective member 21. This makes it possible to increase the durability of the protective device 20.

Next, a method of attaching the protection device 20 of the above embodiment to the snow melting nozzle 10 will be described.
In order to attach the protective device 20 to the snow melting nozzle 10, first, the clip member 22 is moved to the rising portion 11 of the snow melting nozzle 10 while being deformed so as to be open along the slit 22b, and the engaging hole is formed. The rising portion 11 is engaged with 22a. Subsequently, after the U bolt 32 is engaged with the horizontal portion 12 of the snow melting nozzle 10, the main protective member 21 is deformed so that the lower end of the engaging recess 21b expands with the engaging recess 21b facing downward. While keeping it, move it to the horizontal portion 12 of the snow melting nozzle 10 so that both ends of the U bolt 32 are inserted into the elongated holes 21e1 and 21e2 of the main protective member 21 so as to be inserted into the engaging recess 21b. The horizontal portion 12 is engaged.

Next, the tip end portion (the portion where the slit 22b is formed) of the clip member 22 is fitted to the inlet of the engaging recess 21b. After that, the rear wall side pressing plates 31 are joined to the rear wall of the main protective member 21 so that both ends of the U bolt 32 are inserted into the elongated holes 31e1 and 31e2, and both ends of the U bolt 32 are joined. The nut 36 is screwed into the male screw portions 32a and 32b.
Subsequently, the connecting bolt 34 is inserted so as to penetrate the bolt insertion hole 21g of the main protective member 21, the elongated hole 22c of the clip member 22, the slit 21d of the main protective member 21, and the slit 31d of the rear wall side pressing plate 31. Insert it, screw the nut 35 to the tip and tighten it, and the work is completed. The mounting order of the clip member 22 and the main protective member 21 may be reversed.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments and can be appropriately modified without departing from the gist of the invention. For example, in the above embodiment, the inclination angle of the inclined surface 21a formed on the main protective member 21 is 32 ° as an example assuming that the snow melting nozzle installed on the track traveling at high speed such as the Shinkansen is protected. However, in the case of a conventional line, the inclination angle may be set smaller. Further, in the above embodiment, depending on the strength (material) of the main protective member 21, the main protective member 21 may be a vertical surface without providing the inclined surface 21a.

Further, in the above embodiment, it has been described that the entire clip member 22 is formed of hard rubber, but the clip member 22 may be formed of rubber at least at a portion that engages with the rising portion 11 of the snow melting nozzle 10. Further, although the material of the main protective member 21 and the clip member 22 is hard rubber, other elastic materials having similar properties may be used.
Further, in the above embodiment, the clip member 22 is provided with the slit 22b, but without providing the slit 22b, the diameter of the engaging hole 22a is increased so that the injection portion 13 passes through the engaging hole 22a. The clip member 22 is moved from the tip end side of the snow melting nozzle 10 to the rising portion 11 side, and a rubber gap material is inserted into the gap between the engaging hole 22a and the rising portion 11 to intervene the clip member 22. The member 22 may be fixed.

Further, in the above embodiment, the description has been made on the assumption that the snow melting nozzle arranged in the crossing portion of the slab track is protected, but the protection device 20 for the track snow melting nozzle of the present invention is the crossing section of the ballast track. It can also be used when it is desired to protect the snow melting nozzles arranged in.

10 Snow melting nozzle 11 Rising part 12 Horizontal part 13 Injection part 20 Protective device 21 Main protective member 21a Inclined surface 21b Engagement recess 21g Bolt insertion hole 22 Clip member 22a Engagement hole 22b Slit 31 Rear wall side holding plate 32 U bolt 33 Front wall side presser plate 34 Bonding bolt

Claims (6)

A main protective member formed of an elastic material and engaged with the horizontal portion of the snow melting nozzle to be protected, a clip member engaged with the rising portion of the snow melting nozzle from the track, the main protective member and the clip. A protective device for a nozzle for orbital snowmelt, which is provided with a connecting means for connecting the members.
The main protective member has an inclined surface formed on the side where the train travels, and an engaging recess with which the horizontal portion of the snowmelt nozzle can engage is formed from the lower surface upward.
The clip member includes a first portion that can be engaged with the rising portion of the snow melting nozzle and a second portion that can be fitted into the engaging recess of the main protective member, and at least the first portion is an elastic material. Formed by
An orbital snowmelt characterized in that the main protective member and the clip member are coupled by the coupling means in a state where the second portion of the clip member is fitted into the engaging recess of the main protective member. Nozzle protection device for. A pair of bolt insertion holes extending from the surface side to the inner wall surface of the engaging recess are formed in the rear wall of the main protective member at positions separated by a predetermined distance in the vertical direction.
Male screw portions at both ends of the U bolt engaged with the horizontal portion of the snow melting nozzle inside the engaging recess were inserted into the pair of bolt insertion holes, and protruded from the rear wall of the main protective member. The protective device for a nozzle for melting snow on a track according to claim 1, wherein a nut is screwed into each of the male screw portions. The protective device for a nozzle for melting snow on a track according to claim 2, wherein the pair of bolt insertion holes are elongated holes in the horizontal direction. The second portion of the clip member is integrally formed with the elastic material together with the first portion.
One of claims 1 to 3, wherein a vertical slit reaching the first portion is formed in the second portion in a state of being engaged with a rising portion of the snow melting nozzle. The described orbital snowmelt nozzle protection device. A bolt insertion hole is formed in the second portion of the clip member at a position intersecting the slit so as to horizontally penetrate the second portion.
In the lower part of the main protective member, a bolt insertion hole is formed in a portion corresponding to the bolt insertion hole of the second portion fitted in the engagement recess.
The claim means that the coupling means is a coupling bolt inserted so as to penetrate the bolt insertion hole of the second portion and the bolt insertion hole formed in the lower part of the main protective member. 4. The protective device for the orbital snow melting nozzle according to 4. The connecting means includes a rear wall side pressing plate joined to the rear wall of the main protective member, and a front wall side pressing plate joined to the lower part of the front wall of the main protective member.
The rear wall side pressing plate and the front wall side pressing plate are joined to the rear wall and the front wall of the main protective member, respectively, and correspond to the bolt insertion holes formed in the lower part of the main protective member. A bolt insertion hole is formed in the part,
The connecting bolt is inserted so as to penetrate the bolt insertion hole formed in the rear wall side pressing plate, the lower portion of the main protective member, the second portion of the clip member, and the front wall side pressing plate. The protective device for a track snow melting nozzle according to claim 5, wherein a nut is screwed into a male screw portion at the tip to connect the main protective member and the clip member.

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