KR20230135943A - Eco-Friendly High durable Isolated Box (Sleeper boots) for Sleeper Floating Track System in Urban Transit box - Google Patents

Abstract

The present invention forms longitudinal irregularities on the inner and outer surfaces of the sleeper box body made of synthetic resin, thereby reducing the strain generated by the train load in the surface contact between the inner circumferential surface of the concrete ballast and the outer circumferential surface of the concrete sleeper. Floating urban railway sleepers improves durability by improving damage-vulnerable parts of the sleeper box, thereby improving track performance and train running safety, and at the same time increases dustproofing by effectively absorbing shocks and loads from all directions according to the operation of the train. This is about an eco-friendly, highly durable sleeper box for track use.

Description

Eco-friendly high durable Isolated Box (Sleeper boots) for Sleeper Floating Track System in Urban Transit box}

The present invention relates to an eco-friendly, highly durable sleeper box for urban railway sleeper floating tracks to reduce noise and vibration caused by tracks made on concrete ballast.

In detail, the present invention forms longitudinal irregularities on the inner and outer surfaces of the sleeper box body made of synthetic resin to prevent damage caused by train load in surface contact between the inner circumferential surface of the concrete ballast and the outer circumferential surface of the concrete sleeper. By reducing the strain rate and improving the damage vulnerability of the sleeper box, it improves durability, improves track performance and train running safety, and at the same time increases dustproofing by effectively absorbing shocks and loads from all directions according to the operation of the train. This is about an eco-friendly, highly durable sleeper box for railway sleeper floating tracks.

In general, railways, which have occupied an important position as a major national infrastructure, must be able to sufficiently respond to the rapidly increasing demand for transportation and the demands for higher speed and comfort in accordance with the rapidly changing social structure and living environment in recent years. As the standard of living improves and the trend of avoiding dangerous and difficult work spreads, the supply and demand of track repair workers becomes difficult, so the ease of maintenance is also an important consideration in railroad construction.

Accordingly, the gravel ballast that has been applied to railways is being replaced by concrete ballast in consideration of convenience of maintenance and blocking of environmental pollutants, especially in the case of subways, where ease of maintenance is an important issue as a means of urban public transportation. This is even more true.

Since the subway in these cities installs rails on concrete roadbeds, the anti-vibration effect is bound to be insufficient compared to conventional gravel roadbeds. Therefore, severe noise and vibration are generated due to shock and friction between rails and wheels in operating subways, which can be harmful to passengers. It causes discomfort and has a negative impact on structures and related facilities such as railroad cars and rails.

For the purpose of reducing these adverse effects, the conventional track vibration isolation box (hereinafter referred to as sleeper box) constructed on railway bridges and subway sections made of concrete ballast structures is introduced in Registered Utility Model No. 20-0301015.

The track sleeper box of the prior art is used by integrally forming fins that protrude more embossed in the transverse direction on the protrusions of the uneven portion formed in plurality along the inner surface in contact with the concrete sleeper, thereby preventing direct abrasion of the uneven portion. We provide rubber sleeper boxes for tracks that extend lifespan and increase dustproofing.

Since these rubber sleeper boxes are provided by molding a rubber material, their self-deformation is large, making it difficult to manufacture a uniform product, and their compressive strength, tensile strength, and weather resistance are weak, resulting in a high wear rate, shortening the service life, and stress generated by train loads. Due to the high strain rate due to displacement, the replacement period of the sleeper box is accelerated due to damage and damage to vulnerable parts of the sleeper box, such as tearing, loss of thickness, wear and abrasion, etc., which leads to economic loss as well as various problems that cause deterioration of track performance. In addition, problems such as rubber dust scattering at the site are pointed out.

In particular, the sleeper box of the prior art is provided by forming horizontal irregularities on the inner circumferential surface of the sleeper box, so that whenever the concrete sleeper moves in the vertical direction up and down due to the train load, it is in contact with the outer circumferential surface of the concrete sleeper. The problem of shortening the lifespan of the sleeper box was pointed out as the irregularities on the inner circumferential surface of the sleeper box were severely worn and abraded. At the same time, this significantly reduced noise and vibration prevention efficiency, reduced structural stability, and caused tearing or damage when replacing the sleeper box. It takes a long time to remove a damaged sleeper box, so the replacement cost is excessive.

Accordingly, the present inventor would like to propose a new type of eco-friendly, highly durable sleeper box for urban railway sleeper floating tracks in order to solve the above-mentioned problems.

The present invention improves the durability by improving the damage vulnerability of the sleeper box by reducing the strain generated by the train load, thereby improving track performance and train running safety, and at the same time reducing shock and shock from all directions according to the operation of the train. The technical task is to provide an eco-friendly, highly durable sleeper box for urban railway sleeper floating tracks that effectively absorbs the load and increases dustproofing.

The above and other inherent objectives of the present invention can all be easily achieved by the present invention described below.

The eco-friendly, highly durable sleeper box for urban railway sleeper floating tracks according to the present invention includes a sleeper box body made of synthetic resin; It includes a longitudinal inner uneven portion and a longitudinal outer uneven portion formed on each of the inner circumferential surface and the outer peripheral surface of the sleeper box main body, and the longitudinal inner uneven portion protrudes from the inner circumferential surface of the sleeper box main body. The surface and the outer circumferential surface of the concrete sleeper are interviewed and at the same time, the protruding surface of the longitudinal outer irregularities of the outer circumferential surface of the sleeper box body and the inner circumferential surface of the concrete ballast are mutually interviewed to increase the shock absorption rate and thus improve the dustproof efficiency. It is characterized by:

In addition, the present invention inserts a sound-absorbing member or a vibration-proof member into the groove of the inner uneven portion of the inner circumferential surface of the sleeper box main body and makes it face the outer circumferential surface of the concrete sleeper, and at the same time, inserts a sound-absorbing member or a vibration-proof member into the groove of the outer uneven portion of the outer circumferential surface of the sleeper box main body. It is characterized by inserting an anti-vibration member so that it is in mutual contact with the inner circumferential surface of the concrete ballast to increase noise prevention and vibration prevention efficiency.

In addition, the present invention is characterized by improving the ease of installation and replacement of the sleeper box by forming the sleeper box body into a first sleeper box and a second sleeper box and separating/combining them.

In addition, the present invention is to form a sound-absorbing member or vibration-proof member fitting hole corresponding to the groove of the outer uneven portion of the outer circumferential surface of the sleeper box body on the hanging edge of the sleeper box body, install the sleeper box in the receiving part of the concrete ballast, and then install the sound-absorbing member. Alternatively, it is characterized in that it improves the ease of fitting and installing the sound-absorbing member or the vibration-isolating member through the vibration-isolating member fitting hole.

In addition, the present invention provides structural stability by forming a net-shaped flow prevention unevenness on the outer bottom surface of the sleeper box main body to increase friction with the bottom surface of the storage part of the concrete ballast to prevent shaking of the sleeper box. It is characterized by being able to do so.

The present invention provides a sleeper box made of synthetic resin with improved compressive and tensile strength, especially engineering plastic, and has the effect of reducing manufacturing costs by improving the productivity of a uniform product with excellent structural stability with excellent reinforcing strength, and reducing the sleeper box. We provide eco-friendly sleeper boxes that are expected to improve air quality in underground sections by reducing industrial waste, reducing noise and vibration, and reducing wear and tear by increasing the service life of It has effects such as improving uniformity and mass production performance and reducing maintenance costs by extending the life of the sleeper box.

The present invention has the effect of improving the vibration isolation effect by effectively absorbing shocks and loads from each direction according to the operation of the train, and at the same time has the effect of preventing noise due to the effective arrangement of the sound absorbing members.

The present invention has the effect of improving track performance and train running safety by improving durability by reducing the strain generated by the train load and improving the damage vulnerable part of the sleeper box.

The present invention not only extends the replacement period of sleeper boxes, but also reduces the cost of replacement work due to easier workability when replacing sleeper boxes, and has the effect of improving the ease of insertion and installation work of sound-absorbing or anti-vibration members.

The present invention has the effect of providing a dustproof box that maintains structural stability by preventing shaking of the sleeper box by increasing the friction between the sleeper box body and the bottom surface of the storage part of the concrete ballast.

Figure 1 is a perspective view of a sleeper box according to the present invention.
Figure 2 is a perspective view of the sleeper box of the present invention seen from the bottom.
Figure 3 is an exploded perspective view of a vibration sleeper to which the present invention is applied.
Figure 4 is an enlarged perspective view of a portion of the sleeper box of the present invention.
Figure 5 is a cross-sectional view of an anti-vibration sleeper for illustrating the present invention.
Figure 6 is a cross-sectional view taken along line A-A of Figure 5.
Figure 7 is a plan cross-sectional view of the sleeper box of the present invention in an installed state.
Figure 8 is a cross-sectional view of the sleeper box of the present invention in an installed state, according to another embodiment.
Figure 9 is an enlarged perspective view of a partial excerpt from another embodiment of the sleeper box of the present invention.
Figure 10 is an exploded perspective view of the second embodiment of the sleeper box of the present invention.
Figure 11 is an exploded perspective view of the third embodiment of the sleeper box of the present invention.
Figure 12 is a cross-sectional view of the sleeper box of the present invention in an installed state according to a second embodiment.
Figure 13 is a cross-sectional view showing the state of removing the first and second sleeper boxes through the second embodiment of the sleeper box of the present invention.
Hereinafter, the present invention will be described in detail with reference to the attached drawings.

The eco-friendly, highly durable sleeper box for urban railway sleeper floating tracks according to the present invention will be described in detail with the accompanying drawings.

Figure 1 is a perspective view of the sleeper box according to the present invention, and Figure 2 is a perspective view of the sleeper box according to the present invention seen from the bottom.

According to this, a sleeper box main body 10 made of synthetic resin; It may be configured to include a vertical inner uneven portion 11 and a longitudinal outer uneven portion 12 formed on each of the inner and outer peripheral surfaces of the sleeper box main body 10.

The sleeper box body 10 is preferably provided by molding it from synthetic resin, especially engineering plastic.

Therefore, the present invention can reduce manufacturing costs by improving the productivity of a uniform product with excellent structural stability and reinforcing power.

Figure 3 is an exploded perspective view of a dustproof sleeper to which the present invention is applied, Figure 4 is an enlarged perspective view of a portion of a sleeper box of the present invention, Figure 5 is a cross-sectional view of a dustproof sleeper for illustrating the present invention, and Figure 6 is Figure 5A - A cross-sectional view along line A, Figure 7 is a flat cross-sectional view of the sleeper box of the present invention in an installed state.

According to this, the vibration-proof sleeper 100 is installed with a shock-absorbing sleeper vibration-proof pad 30 on the upper part of the inner floor surface 13-1 of the sleeper box 10 stored in the storage part 21 of the concrete ballast 20. In this structure, a concrete sleeper (40) is installed by inserting it into the inner space of the sleeper box (10), and then a rail pad (50) and a rail (60) are installed on the upper surface of the concrete sleeper (40).

Number 70 in the drawing is a clip.

The sleeper box according to the present invention installed in this way has the protruding surface (11A) of the longitudinal inner uneven portion (11) on the inner circumferential surface of the sleeper box main body (10) and the outer circumferential surface of the concrete sleeper (40) interviewed. The protruding surface 12A of the longitudinal outer uneven portion 12 on the outer circumferential surface of the sleeper box main body 10 and the inner circumferential surface of the storage portion 21 of the concrete ballast 20 are installed so as to face each other.

Therefore, in the present invention, the inner and outer protruding surfaces 11A and 12A of the sleeper box main body 10 are formed on the outer circumferential surface of the concrete sleeper 40 and the inner circumferential surface of the receiving part 21 of the concrete ballast 20. Since the surface is maintained in a state of contact, the friction area is small and the strain rate caused by the train load can be reduced. Whenever the concrete sleeper moves in the vertical direction up and down due to the train load, the outer circumference of the concrete sleeper (40) The longitudinal irregularities (11) on the inner circumferential surface of the sleeper box main body (10) and the inner circumferential surface of the receiving part (21) of the concrete ballast (20) and the outer circumferential surface of the sleeper box main body (10) are interviewed. Wear and abrasion of the longitudinal outer uneven portion 12 can be reduced, thereby significantly extending the life of the sleeper box.

especially. Whenever the concrete sleeper (40) moves in the vertical direction up and down due to the train load, the concrete sleeper (40) moves in the vertical direction up and down along the longitudinal uneven portion (11) on the inner circumferential surface of the sleeper box main body (10). It moves smoothly and easily repeats compression and release in the vertical direction with respect to the shock-absorbing sleeper vibration isolation pad (30) installed on the upper part of the inner floor surface (13-1) of the sleeper box body (10), thereby preventing shock caused by the load of the train. It can absorb as much as possible, greatly improving the anti-vibration efficiency.

In addition, the present invention forms a net-shaped flow prevention uneven portion (13A) on the outer bottom surface (13) of the sleeper box main body (10) to reduce the frictional force with the bottom surface of the receiving portion (21) of the concrete ballast (20). By increasing the deformation of the sleeper box main body (10) due to the vertical and horizontal load caused by the train load as much as possible, the inner circumferential surface of the receiving part (21) of the concrete ballast (20) and the outer circumferential surface of the sleeper box main body (10) By preventing clearance between the outer uneven portions 12 in the longitudinal direction, it is possible to provide structural stability by ensuring that the sleeper box is installed and maintained in a solid state without shaking.

This invention improves the damage vulnerability of the sleeper box by reducing the strain rate caused by damage such as tearing of the sleeper box due to the load of the train, thereby improving durability and extending the service life, as well as improving track performance and train driving safety. will improve.

Figure 8 is a cross-sectional view of another embodiment presented to reduce noise and improve the dustproof function of the sleeper box according to the present invention, showing the groove 11B of the longitudinal inner uneven portion 11 on the inner circumferential surface of the sleeper box main body 10. By inserting a sound-absorbing member (80A) or a vibration-proofing member (80) or filling it with cement mortar or epoxy resin, it is brought into contact with the outer circumferential surface of the concrete sleeper (40) and at the same time, the longitudinal outer side of the outer circumferential surface of the sleeper box main body (10). It can be provided by inserting a sound-absorbing member (80A) or a vibration-isolating member (80) into the groove (12B) of the uneven portion (12) or filling it with cement mortar or epoxy resin so that it is in mutual contact with the inner circumferential surface of the concrete ballast (20). there is.

In the above, the sound-absorbing member 80A and the vibration-isolating member 80 are formed in the groove 11B of the longitudinal inner uneven portion 11 of the inner peripheral surface of the sleeper box main body 10 and the outer peripheral surface of the sleeper box main body 10. Installed alternately in the grooves 12B of the longitudinal outer uneven portion 12, that is, inserting the sound-absorbing member 80A into one groove 11B and groove 12B, and then inserting the sound-absorbing member 80A into the groove 11B and groove 12B of the longitudinal outer groove 12B. 12B) to reduce noise and increase dust-proofing efficiency by installing the vibration isolation member 80, or by installing the sound absorption member 80A or the vibration isolation member 80 in the groove 11B and groove 12B, respectively. can do.

The sound-absorbing member 80A is preferably made of a sound-absorbing material such as soft urethane foam, and the vibration-proof member 80 is preferably made of a rubber material. Cement mortar performs an adhesive function, and epoxy resin can be used as an alternative material. It's also good.

Therefore, in the present invention, the inner and outer protruding surfaces 11A and 12A of the sleeper box main body 10 are formed on the outer circumferential surface of the concrete sleeper 40 and the inner circumferential surface of the receiving part 21 of the concrete ballast 20. While maintaining the interview state, the groove (11B) of the longitudinal inner irregularity (11) on the inner circumferential surface of the sleeper box main body (10) and the longitudinal outer irregularity on the outer circumferential surface of the sleeper box main body (10) The outer surface of each sound-absorbing member or vibration-proof member (80) inserted into each of the grooves (12B) of (12) is interviewed on the outer circumferential surface of the concrete sleeper (40) and the inner circumferential surface of the receiving portion (21) of the concrete ballast (20). Since it maintains its state, it absorbs the noise generated when vibration occurs due to the vertical and horizontal load caused by the train load, leading to noise reduction and absorbing vibration at the same time, so it doubles as a shock-absorbing sleeper anti-vibration pad (30) to prevent vibration. It can be performed efficiently.

Figure 9 is an enlarged perspective view of a partial excerpt from another embodiment of the sleeper box of the present invention.

According to this, the hooking edge 14 of the sleeper box main body 10 is provided with a sound-absorbing member or dust-proof member fitting hole 14A corresponding to the groove 12B of the outer uneven portion 12 on the outer peripheral surface of the sleeper box main body 10. It can be configured by forming .

In the present invention of this configuration, the sleeper box main body 10 is installed in the receiving portion 21 of the concrete ballast 20, and then the sound-absorbing member 80A or the vibration-isolating member 80 is inserted through the sound-absorbing member or vibration-isolating member fitting hole 14A. ) can be installed by inserting the sound-absorbing member (80A) or the vibration-isolating member (80), making it easy to perform the insertion and installation work.

Figure 10 is an exploded perspective view of the second embodiment of the sleeper box of the present invention, Figure 11 is an exploded perspective view of the third embodiment of the sleeper box of the present invention, and Figure 12 is a second embodiment of the sleeper box of the present invention. This is a cross-sectional view of the installation state as an example.

According to this, the sleeper box body 10 is formed of a first sleeper box 10A and a second sleeper box 10B, and is formed in the fitting groove 10A' formed at the central inner end of the first sleeper box 10A. The second sleeper box (10B) can be configured to be joined or separated by fitting a fitting protrusion (10B') formed on the central inner end.

Instead of the fitting groove 10A' formed on the central inner end of the first sleeper box 10A and the fitting protrusion 10B' formed on the central inner end of the second sleeper box 10B, in FIGS. 10 and 11 It may be provided by forming a coupling groove (10A") and a protrusion (10B") as shown in the dashed-dotted line.

The first sleeper box (10A) and the second sleeper box (10B) are separated/joined at the center of the sleeper box main body 10 as shown in FIG. 10 or separated/joined at both ends of the sleeper box main body 10 as shown in FIG. 11. They can be designed and provided so that they can be combined, and the same reference numerals for the first sleeper box (10A) and the second sleeper box (10B) are used in FIGS. 10 and 11.

Therefore, the present invention is applicable to the case of storing and installing the first sleeper box (10A) and the second sleeper box (10B) in the receiving part 21 of the concrete ballast 20, as shown in Figure 13, or when the first sleeper box (10A) and the first sleeper box (10A) are installed. When replacing the sleeper box body (10) including the second sleeper box (10B), the first sleeper box (10A) and the second sleeper box (10B) can be placed on the concrete ballast (10A) without lifting the concrete sleeper (40) high. Since they can be stored in the storage part 21 of 20) or removed separately, the installation and replacement work of the sleeper box can be performed very easily.

It should be noted that the description of the present invention described above is merely an example for understanding the present invention and is not intended to define the scope of the present invention. The scope of the present invention is defined by the claims appended below, and any simple modification or change of the present invention within this scope should be understood as falling within the scope of the present invention.

10: Sleeper box main body 10A: First sleeper box
10A': Fitting groove 10A": Engaging groove
10B: 2nd sleeper box 10B': insertion projection
10B": Protrusion 11: Inner lumbar part
11A: Protruding surface 11B: Groove
12: Outer uneven portion 12A: Protruding surface
12B: groove 13: outer bottom surface
13A: uneven portion 13-1: inner bottom surface
14: Jamming border
14A: Sound-absorbing member or vibration-proof member insertion hole 20: Concrete base 21: Storage unit
30: Shock-absorbing sleeper anti-vibration pad 40: Concrete sleeper
50: rail pad 60: rail
70: Clip 80: Dustproof member
80A: sound-absorbing member 100: dustproof sleeper

Claims (5)

A sleeper box body (10) made of synthetic resin; A longitudinal inner uneven portion 11 and a longitudinal outer uneven portion 12 formed on each of the inner and outer peripheral surfaces of the sleeper box main body 10, wherein the sleeper box main body 10 The protruding surface 11A of the longitudinal inner irregularity 11 on the inner circumferential surface is interviewed on the outer circumferential surface of the concrete sleeper 40, and at the same time, the longitudinal outer irregularity on the outer circumferential surface of the sleeper box main body 10 ( An eco-friendly, highly durable sleeper box for urban railway sleeper floating tracks, characterized in that the protruding surface (12A) of 12) and the inner circumferential surface of the storage portion (21) of the concrete ballast (20) are installed and configured to face each other. According to claim 1, a net-shaped anti-flow uneven portion (13A) is formed on the bottom outer floor surface (13) of the sleeper box main body (10) to form a net-shaped flow prevention uneven portion (13A) with the bottom surface of the receiving portion (21) of the concrete ballast (20). An eco-friendly, highly durable sleeper box for urban railway sleeper floating tracks that improves friction. The method of claim 1, wherein the sound-absorbing member (80A) or vibration-proof member (80) and the concrete sleeper (40) are installed by fitting into the groove (11B) of the longitudinal inner uneven portion (11) on the inner circumferential surface of the sleeper box body (10). ) At the same time as interviewing the outer circumferential surface of the sleeper box main body (10), a sound-absorbing or vibration-isolating member (80) and a concrete ballast ( 20) An eco-friendly, highly durable sleeper box for urban railway sleeper floating tracks, characterized in that it is configured to be mutually interconnected with the inner circumferential surface. According to claim 1, wherein the sleeper box main body (10) is formed of a first sleeper box (10A) and a second sleeper box (10B), and a fitting groove (10A) is formed at the central inner end of the first sleeper box (10A). An eco-friendly, highly durable sleeper box for urban railway sleeper floating tracks, characterized in that it can be joined or separated by inserting a fitting protrusion (10B') formed on the central inner end of the second sleeper box (10B). The method of claim 1, wherein the hanging edge 14 of the sleeper box main body 10 is provided with a sound-absorbing member or vibration-proof member fitting hole corresponding to the groove 12B of the outer uneven portion 12 on the outer peripheral surface of the sleeper box main body 10. An eco-friendly, highly durable sleeper box for urban railway sleeper floating tracks, characterized by forming (14A).

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