KR200348055Y1 - Flexible joint equipment side end expansion joint for PC sleepers - Google Patents

Abstract

The present invention has a relatively long stretch of ± 62.5mm to ± 300mm, and the toll head is thickened according to the shape of the toe rail to make the life long, and the maintenance cost is low due to the fully elastic fastening type. The purpose of the present invention is to provide an elastic fastening one-way expansion joint device for PC sleepers, which is stabilized, the top plate is rotated, the structure is simple, and the main rail side is easy to maintain.

The present invention for achieving the above object is the top plate is installed on the top pad, the movable rail is installed on one side of the top plate, the insulating block is fixed to the both ends of the top plate is installed with an elastic clip, one side of the top plate A clip plate formed with a clip hook is welded to the clip hook, and an elastic clip is inserted into the clip hook, and an adjustment plate is installed on one side of the clip plate, and a chuck is installed on the adjustment plate. A rail raceway is installed on the lower part of the lower part and one side of the moving rail, and the rail support is installed on the other side of the moving rail and the upper plate by a bolt and a nut; Tongue rail is installed on the other side of the upper plate so that the expansion and contraction to the moving rail side, the insulating block is fixed to the both ends of the upper plate fixed by the elastic clip, the clip plate formed with a clip hook on the other side of the upper plate is welded and installed An elastic clip is inserted into the clip hook, and an adjustment plate is installed on one side of the clip plate, and a chuck is installed on the adjustment plate, and a lower portion of the adjustment plate and one side of the tongue rail are disposed. The rail brace is characterized in that it consists of a tongue rail is formed.

Description

Flexible joint equipment side end expansion joint for PC sleepers

The present invention relates to an elastic fastening one-way expansion joint device for PC sleepers.

In general, rail rails have a maximum temperature change of about 60 to 80 ° C, so when the rail is laid at an intermediate temperature, the maximum length of the rails on each rail is 20 to 30 based on 100M. When the temperature increases due to the characteristics of the rail and the rails extend in the longitudinal direction due to the thermal expansion of the rails, when both ends of the rails are in close contact with each other, the rails are pushed in the width direction of the rails due to the thermal expansion force. Since the line width is warped and derailment occurs when the railroad runs, the connection part of the rail should always have a predetermined interval.

In consideration of the above conditions, when the distance between the rails is set to 6 mm, it is difficult to absorb the amount of expansion and contraction of the rail, so that a separate expansion joint device is used at the connection portion of the rail.

In addition, since the noise and vibration is generated due to the interval between the rails considering the amount of expansion and contraction of the rail due to thermal expansion during the running of the train, the installation of a long rail to prevent this is being promoted, and at the same time the amount of expansion and contraction of the rail is gradually increased.

Accordingly, in order to solve the problems as described above, the applicant of the present invention proposed a expansion joint device of the utility model registration application No. 2000-0005895 railway rail, the technical configuration is "base plate fixed to the base by the coupling means; It is installed on the clip plate is welded to the base plate, the clip plate is formed to the clip hook to insert the elastic clip to support the lower portion, the clip plate is inserted to the elastic clip is inserted to support the lower one side of the front end portion, the other side abdomen and the lower end A moving rail on which a rail brace supported by a chuck and an adjustment plate are installed on one side of the clip plate into which the elastic clip is inserted to support the clamp;

A clip rail installed at an upper side of the base plate fixed to the base by a coupling means and fixed to a clip hook welded to the base plate at the bottom thereof, and an elastic clip inserted into the clip hanger to support the bottom;

The rail fixing brake, which is installed at the distal end of the tongue and supports the abdomen and the lower portion of the tongue, is secured through the coupling bolt and the nut. With the government;

The tip of the tongue rail is in close contact with the head of one side of the moving rail, the clip plate is coupled to the tongue fixing portion is installed to support the lower side of the one side of the moving rail, the other side abdomen and the bottom of the moving rail is supported It characterized in that it consists of a rail contact portion is installed rail brace on one side of the clip plate is inserted elastic clip.

The conventional expansion joint device of the railway rail configured as described above maximizes the amount of expansion and contraction of the rail contact portion, and the moving rail and the tongue rail are fixed by the elastic clips to fasten or dismantle the fast, as well as the vibration during the running of the train. Easily absorbed to cushion the train's shock, and firmly fixed the track has the advantage of preventing the instability, vibration and noise of the track.

However, the conventional expansion joint device of the railway rail as described above has the following problems.

First, in the conventional railway rail expansion joint device, when the rail is in close contact with the rail, the moving rail is positioned outside the tongue, so that when the wheel is in contact with the expansion joint device, the section is in contact with the rail and the moving rail at the same time. Therefore, when the width of the rail contacts more than the width of the wheel, it is not only detrimental to the running performance of the wheel, but also a step is generated when the rail wear and flow occur, which causes the rail and the wheel to be damaged and the running performance is also deteriorated.

Second, the conventional joint joint device of the railway rail is formed a section where the width of the rail bottom is the widest at the end of the section in which the moving rail and the tongue rail contact, the equipment for compacting gravel during maintenance work is wide Interference causes difficulty in crushing the gravel.

Third, the conventional expansion joint device of the railway rail is composed of a moving rail and a tongue rail in the expansion joint device, and also using a bolt or elastic clip through the adjustable rail brace on both sides of the moving rail and the tongue rail. As a structure to be fastened by using the adjustable rail brace for the moving rail side and the tongue rail side repair, not only the gap deformation caused by the movement of the rail brake is generated, but also when the deformation of the gap occurs, it is difficult to correct it correctly. A problem arises.

Fourth, conventional railway rail expansion joint device is a method of drilling a hole in the sleeper and screwing the screw spike to the sleeper anti-angle and sleeper fastening method is cumbersome and loosening the screw spike by vibration, the sleeper is not fixed to the left and right Flow is generated.

Fifth, the conventional joint of the railway rail is used to make the pointed tip for smooth stretching of the rail, this shape has a significant impact on the strength, wear resistance and life by weight when the train passes. The performance of the expansion unit is determined by how it is set.

Sixth, the conventional expansion joint device of the railway rail has a fixed tongue in the middle, in the case of both ends of the expansion type having the moving rail on both sides, the middle of the middle rail is moved to the left and right according to the amount of expansion of the moving rail. In this case, a problem arises in that the expansion joint must be reset. If it is not reset, the moving rail causes the expansion and buckling of the rail, which causes a lot of trouble to the safe operation of the train.

Seventh, the conventional expansion joint of the railway rail is installed by the base parallel to the sleeper is not exactly in close contact with the abdomen of the tungle rail and the moving rail of the expansion joint due to the amount of expansion according to the wheels and rails It is difficult to accurately contact the lateral pressure, and in order to accurately contact the rotation of the base or the contact direction of the rail brace to vary according to the bending of the rail has caused a problem that the product of the sleepers and the base should be various.

Eighth, when the expansion joint device of the conventional railway rail is fastened to the elastic clip to form a gap between the shoulder and the left and right flow is generated as well as the linear alignment of the rail and deformation of the gauge.

Ninth, the conventional expansion joint device of the railway rail is increased by the amount of expansion of the moving rail and the tongue rail, the end of the moving rail or the end of the tongue rail is out of the base for holding the rail, so that the detached rail is caught on the base during expansion This problem becomes impossible.

Therefore, the present invention was devised to solve the problems described above, and the amount of stretching is relatively long as ± 62.5mm ~ ± 300mm, and the toil head is thickened according to the toil processing shape, so that the life is long, Maintenance cost is low due to the fully elastic fastening type, and the stabilization of the track is stabilized by the use of PC sleepers, and the structure is simple due to the rotation of the upper plate. The purpose is to provide a joint device.

Figure 1 shows an elastic fastening one-way expansion joint device for PC sleepers according to the present invention

Floor plan,

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a front view of FIG. 2;

4 is a cross-sectional view taken along the line B-B of FIG.

5 is a front view of FIG. 4;

6 is a cross-sectional view taken along the line C-C of FIG.

7 is a front view of FIG. 6,

8 is a tongue of the elastic fastening one-way expansion joint device for PC sleepers according to the present invention

Example 1 showing the processing state,

9 is a tongue of the elastic fastening one-way expansion joint device for PC sleepers according to the present invention

Example 2 showing the state of processing,

10 is a tongue of the elastic fastening one-way expansion joint device for PC sleepers according to the present invention

3 shows an example of a processing state.

11 is an elastic fastening one-way expansion joint device for PC sleepers according to the present invention

Front view showing a moving rail,

12 is a cross-sectional view taken along the line A-A to E-E of FIG.

Figure 13 of the elastic fastening one-way expansion joint device for PC sleepers according to the present invention

An illustration showing the theoretical intersection of the moving rails,

14 is an elastic fastening one-way expansion joint device for PC sleepers according to the present invention

Side view showing a rail support,

15 is an exemplary view showing a rail moving support of FIG.

16 is an exemplary view showing a throttle of FIG. 14;

17 is an exemplary view showing the rail support of Figure 14,

18 is an elastic fastening one-way expansion joint device for PC sleepers according to the present invention

A plan view showing a sleeper-based fastener,

19 is elastic fastening single-ended expansion joint device for sleepers in accordance with the present invention

Side view showing a sleeper fastener,

20 is an exemplary view showing the shoulder of FIG. 19;

21 is an exemplary view showing the sleeper movement preventing angle of FIG.

22 is an exemplary view showing the elastic clip of FIG. 19,

23 is an exemplary view showing the fixing protrusion of FIG. 19,

24 is a tongue of the elastic fastening one-way expansion joint device for PC sleepers according to the present invention

Exemplary Figure 1 showing a vertical surface machining state,

25 is a tongue of the elastic fastening one-way expansion joint device for PC sleepers according to the present invention

Exemplary Figure 2 showing a vertical surface machining state,

FIG. 26 is a cross-sectional view taken along the line A-A of FIG. 24;

FIG. 27 is a sectional view taken along the line B-B to E-E of FIG. 24;

28 is a stretch of elastic fastening one-way expansion joint device for PC sleepers according to the present invention

Exemplary Figure 1, showing the basic rail departure prevention state

29 is a cross-sectional view taken along the line A-A of FIG. 28;

30 is a stretch of elastic fastening one-way expansion joint device for PC sleepers according to the present invention

Exemplary Figure 2 showing the basic rail departure prevention state

31 is a cross-sectional view taken along the line B-B of FIG. 30;

32 is a stretch of elastic fastening one-way expansion joint device for PC sleepers according to the present invention

Figure 3 illustrates the basic rail departure prevention state

33 is a rotary type elastic fastening one-way expansion joint device for sleepers according to the present invention

Top view showing the top plate,

34 is an enlarged cross-sectional view of portion A of FIG. 33;

35 is an enlarged plan view of a portion A of FIG. 33;

FIG. 36 is an enlarged cross-sectional view of portion B of FIG. 35; FIG.

Explanation of symbols on main parts of drawing

10: top pad 12: top board

14: moving rail 16: insulating block

18: elastic clip 20: clip hanger

22: Clip Plate 24: Adjustment Plate

26: chuck 28: rail brake

30: bolt 32: nut

34: rail 36: the tip of the rail

38 point 40: bottom of a toe rail

42: cut portion 44: rail moving support

46: control panel 48: shoulder

50: angle fixing protrusion 52: sleeper movement prevention angle

54: recessed groove 56: locking jaw

58: protrusion 60: groove

62: sleeper 64: adjustment

66: inclined portion 67: rail support

68: moving rail departure prevention top plate 69: moving rail bottom

R: curve R1: curve

R2: curve

Elastic fastening single-stage expansion joint device for PC sleepers according to the present invention for achieving the above object is the top plate is installed on the top pad, the movable rail is installed on one side of the top plate, the insulating block on both sides of the top plate Is fixedly installed with an elastic clip, a clip plate formed with a clip hook is welded on one side of the top plate, an elastic clip is inserted into the clip hanger, an adjustment plate is installed on one side of the clip plate, the control plate A press is installed on the rail, a rail brace is installed on the lower part of the adjustment plate and one abdomen of the movable rail, and a rail support is installed on the other abdomen and the upper plate of the movable rail by bolts and nuts. A rail part;

Tongue rail is installed on the other side of the upper plate so that the expansion and contraction to the moving rail side, the insulating block is fixed to the both ends of the upper plate fixed by the elastic clip, the clip plate formed with a clip hook on the other side of the upper plate is welded and installed Elastic clip is inserted into the clip hook, and an adjustment plate is installed on one side of the clip plate, and a chuck is installed on the adjustment plate, and the lower part of the adjustment plate and one side of the tongue rail It is characterized by consisting of a tongue rail portion is provided with a rail brace.

Hereinafter, with reference to the accompanying drawings of the present invention will be described in detail.

1 is a plan view showing an elastic fastening single-ended expansion joint device for PC sleepers according to the present invention, Figures 2 to 7 is a cross-sectional view and a front view of the line AA, BB, CC of Figure 1, Figures 8 to 10 Fig. 11 to 13 are plan views showing a moving rail of a PC sleeper elastic fastening one-way expansion joint device according to the present invention, Figures 11 to 13 are shown. 14 to 17 is a side view and an exemplary view showing the rail support of the elastic fastening single-ended expansion joint device for PC sleepers according to the present invention, Figures 18 to 19 is for PC sleepers according to the present invention 20 and 23 are exemplified diagrams illustrating various components of FIG. 19, and FIGS. 24 and 27 are for PC sleepers according to the present invention. Elastic fastening However, it is an exemplary view and a cross-sectional view showing the processing state of the vertical rail top surface of the expansion joint device, Figures 28 to 32 are views showing the state of preventing movement of the moving rail during expansion of the elastic fastening single-end expansion joint device for PC sleepers according to the present invention 33 and 36 are a plan view and an enlarged cross-sectional view showing a rotary top plate of an elastic fastening one-way expansion joint device for PC sleepers according to the present invention.

As shown in these drawings, the PC sleeper elastic fastening single-ended expansion joint device according to the present invention is provided with a top plate 12 on the top pad 10, the movable rail 14 on one side of the top plate 12 Is installed, the insulating block 16 is fixed to the both ends of the upper plate 12 by the elastic clip 18, the clip plate 22 formed with a clip hook 20 on one side of the upper plate 12 is The welding is installed, the elastic clip 18 is inserted into the clip hanger 20 is installed, the adjustment plate 24 is installed on one side of the clip plate 22, the clamp on the adjustment plate 24 (26) is installed, the rail race 28 is installed over the lower part of the adjustment plate 24 and one side of the moving rail 14, the other side of the moving rail 14 and the upper plate (12) A rail support 67 is provided with a moving rail portion provided with a bolt 30 and a nut 32;

Tongue rail 34 is installed on the other side of the upper plate 12 so that the expansion and contraction to the movable rail 14 side, the insulating block 16 is fixed to both sides of the upper plate 12 by the elastic clip 18. Is installed, the clip plate 22 is formed on the other side of the upper plate 12, the clip hook 20 is welded, the elastic clip 18 is inserted into the clip hanger 20 is installed, the clip plate 22 The control plate 24 is installed on one side of the), the chuck 26 is installed on the control plate 24, the lower part of the control plate 24 and one side of the tongue rail 34 It consists of the tungsten rail part provided with the rail brace 28 over.

Here, the tongue rail 34 has a width of a constant thickness at its tip portion 36 and processes the curve R1 to half of the head width of the tongue rail 34 while going to the rear end, and the remaining 1 / The two parts are formed in an S shape with the opposite curve R2.

In addition, the tongue rail 34 has a width of a certain thickness at its tip portion 36, and the curve R1 is processed more than half of the head width of the tongue rail 34 while going to the rear end. The primary curve R1 is formed up to three points, and the other 1/3 is formed by the opposite curve R2.

In addition, the tongue rail 34 is formed in a C shape up to a point 38 at which the head shape of the tongue rail 34 is formed by one curve R at a constant thickness of the tip portion 36.

On the other hand, the moving rail 14 is configured to process the upper portion at a predetermined angle in the outer downward direction of the moving rail 14, so as to match the wheel contact width between 90 ~ 97mm.

In addition, at the end of the section in which the moving rail 14 and the tongue rail 34 are in contact with each other, when the distance between the bottom width of the contact portion exceeds 240 mm, the moving rail 14 and the tongue rail bottom portion 40 are cut to a predetermined portion, and the cutting portion 42 is disposed. To form.

In addition, the moving rail 14 has a rail moving support 44 in close contact with one side of the abdomen, and the rail support 67 is connected to the rail moving support 44 by a bolt 30 and a nut 32. Fixed installation.

Here, a plurality of adjustment plates 46 are inserted and installed between the rail moving support 44 and the rail support 67.

On the other hand, the sleeper movement preventing angle 52 is fixed to the shoulder 48 under the installation, the shoulder 48 to form an angle fixing protrusion 50, to prevent the sleeper movement to the angle fixing protrusion (50) An angle 52 is installed, the elastic clip 18 is installed on the sleeper movement preventing angle 52, and configured to press the sleeper movement preventing angle 52 with the elastic clip 18.

In addition, the tongue rail 34 is formed with a concave groove 54 to concave the bottom portion 40 of the tongue rail 34, and the locking step of the movable rail departure preventing upper plate 68 in the concave groove 54 ( 56 to prevent the movement of the tongue rail 34.

The top plate 12 forms a circle having both end portions of the top plate 12 having a constant curve R from the center of the top plate 12 to the ends thereof, and at both ends of the top plate 12. The insulating block 16 is inserted and configured to rotate.

In addition, the upper plate 12 forms protrusions 58 on both upper ends of the upper plate 12, and a plurality of grooves 60 are formed on the contact surface of the lower surface of the insulating block 16, thereby forming the upper plate 12. ) Is configured to insert the protrusions 58 into the grooves 60 of the insulating block 16 at regular intervals of rotation.

Here, the control piece 64 of a predetermined thickness is inserted between the top plate 12 and the insulating block 16, and the c-shape is formed so as to contact the side surface of the top plate 12 by protruding the control piece 64 to the outside. Form.

On the other hand, the movable rail departure preventing plate 68 is installed at a portion where the ends of the moving rail 14 and the tongue rail 34 is provided with a wide movable rail departure preventing plate 68 over two sleepers.

In addition, by processing a portion of the bottom end 69 of the moving rail 14 is configured to smoothly enter the top plate 12 when the rail is stretched.

In addition, the upper plate 12 forms an inclined portion 66 so that the rail smoothly enters the side surface of the moving rail bottom contact surface 69 of the upper plate 12.

Hereinafter, in explaining the operation of the present invention made of the configuration as described above will be described in detail by dividing each improved portion of the elastic fastening single-ended expansion joint device for PC sleepers according to the present invention.

1. Curve processing setting of expansion joint

Tongue 34 repeats the movement from side to side in order to absorb the amount of stretching due to the heat of the rail and to sharply process the tongue tip 36 for this purpose, this processing is to some extent the tongue tip 36 It must have strength and have a structure that can move smoothly according to the amount of expansion.

Thus, the tip portion 36 of the tongue rail 34 has a width of a certain thickness and goes to the rear end, while processing the curve R1 to one half of the width of the rail head, and then on the opposite curve R2. By processing the remaining 1/2 by the S-shape as a whole, by maintaining a certain strength when in contact with the moving rail 14 to ensure the safe operation of the train as well as to smoothly move according to the contact.

Further, curve R1 is processed more than half the width of the head of tungsten 34 to form a primary curve R1 up to about 2/3, and the remaining 1/3 is the opposite curve R2. Although the thickness of the tongue tip portion 36 is slightly thinner by machining with a thinner, the tangential angle becomes larger when the first curve R1 is processed, and the length of the second curve R2 is shorter, so that the length of the tongue rail 34 is shorter. Yet to facilitate the smooth operation of the expansion joint device of the present invention.

At both ends, the processing of the head of the tongle 34 is processed to the point 38 where the head of the rail is formed with one curved line R at a constant thickness with respect to the entire head of the tongle 34 in a C shape. Processing.

Since both ends of the tongue rail 34 are fixed, the moving rail 14 may move outside of the tongue rail 34 during expansion and contraction. Because it can.

2. Machining by contact with wheel

The upper part of the moving rail 14 is machined at an angle to the outside and downward direction of the moving rail 14 so that the wheel contact width is set between 90 to 97 mm, and the driving safety for the wheel and the flow is generated outside the rail when wear and flow occur on the rail. It is possible to operate the stable train in the new construction part by eliminating the occurrence of step.

3. Low processing

If the distance between the bottom width of the contact portion of the movable rail 14 and the tongue rail 34 exceeds 240mm, the bottom portion of the tip is cut to form a cut portion 42 to prevent interference, thereby preventing the interference between the movable rail 14 and the tongue. The rail 34 can be smoothly moved.

4. One side fixed expansion joint

The rail support 67 is fixedly installed on the movable rail 14 side, and by adjusting only the tongue rail 34 side, only the side of the tongue rail 34 installed on the inner side with respect to the movable rail 14 side is adjusted to the gauge and linear. It is easy to carry out maintenance work by setting.

Here, when the moving rail 14 side and the fixed rail support 67 is completely fixed as described above, the adjustment plate 46 is inserted into the moving rail 14 because it cannot cope with linear deformation due to wear and abnormal deformation of the moving rail 14, Allows adjustment when linear deformation occurs.

In addition, the rail moving support 44, the adjustment plate 46 and the rail support 67 is formed in one body on one side of the movable rail 14, the optimum when manufacturing the fixed rail support 67 Assembled in the state and fixed to the upper plate 12 by welding or other methods.

Then, the distance between the movable rail 14 and the tongue 34 using the adjustable rail race 28 on the opposite side of the tongue rail 34 according to the amount of expansion and contraction of the movable rail 14 and the tongue rail 34. And finely adjust the amount of contact.

In addition, a plurality of adjusting plates 46 are inserted between the fixed rail support 67 and the moving rail support 44 in advance so as to be adjustable by removing or inserting when the gap is reduced or enlarged.

5. Sleeper installation structure

The sleeper movement preventing angle 52 is attached to the shoulder 48 inserted into the sleeper 62 and the sleeper movement preventing angle 52 is fixed to the angle fixing protrusion 50 formed on the shoulder 48 by fixing with the elastic clip 18. 52) by inserting the upper part with the elastic clip 18, the fastening operation is simple and maintains a constant fastening force by elasticity, there is no flow of the sleeper 68 by loosening, to the angle fixing protrusion (50) By this, it is made into a structure that can withstand the pressure by the axial force even more.

6. Toe-rail tofu processing

First, the train wheel running surface is processed in a straight line at the head of the tongue rail 34, and the contact surface of the opposite moving rail 14 is processed in the S-shape mentioned above.

The thickness of the wheel contact portion (head width of the cross section BB) of the tip portion 36 of the tongue rail 34 is 2 to 8 mm in consideration of the minimum strength, and the vertex Y of the tongue tip portion 36 is a tongue rail ( It is within the range of 8-15mm from the centerline of 34) to be stable to the weight and impact of the train.

In addition, the processing of the head upper surface of the tongue rail 34 is primarily processed (L2) from the tip portion 36 of the tongue rail to the section V3 having a predetermined width of the head width so that a constant induction angle when the wheels contact each other. It is possible to prevent the smooth entry of the wheel and damage to the rail by forming a secondary processing (L1) to a certain distance 200 ~ 500mm from the tip portion 36 of the tongue rail 34 to the rail tip when the train enters The 36 is not in contact with the wheels to protect the toe tip 36 and to guide the natural running of the train.

7. To prevent the movement of the tongue by installing the locking step after processing the bottom of the tongue

In order to prevent the movement of the tongue rail 34, the bottom portion 40 of the tongue rail 34 is recessed to form a concave groove 54, and the movement rail detachment prevention upper plate 68 installed at the bottom of the tongue rail 40 is formed. By forming a locking step (56) in the) so that the concave groove (54) of the tongue rail 34 is caught by the locking step (56) of the moving rail departure preventing upper plate 68 to prevent movement over a certain level.

8. Top plate position adjustment and top plate fixing according to rotary top arrangement

The top plate 12 is made of a structure that can be rotated on the sleeper 68, the principle of the top plate 12 is to rotate the distance from the center of the top end to the end of both ends of the top plate 12 A circle is formed as (R), and the insulating block 16 is inserted at both ends to rotate.

In addition, the protrusions 58 are formed on both upper ends of the upper plate 12, and a plurality of grooves 60 are formed on the contact surface of the lower surface of the insulating block 16, so that the upper plate 12 protrudes when rotating at regular intervals. By inserting the 58 into the groove 60 of the insulating block 16, it plays a role of stable insulation effect and rotation prevention.

In addition, by inserting a predetermined thickness adjusting piece 64 between the insulating block 16 and the top plate 12 for ease of linearity and gap gauge adjustment, it is possible to adjust the position and spacing of the top plate 12, In order to prevent the departure of the (64) by protruding a certain amount of adjustment piece (64) to the outside to be in contact with the '12' shape to contact the side of the top plate 12 to prevent the departure to the outside.

9. Prevents detachment of the upper end of the rail end during expansion

The moving rail release preventing plate 68 at the end where the ends of the moving rail 14 and the tongue rail 34 meet is provided with a moving rail (even if the amount of expansion is increased by installing a wide moving rail release preventing plate 68 over two sleepers). 14 is formed so as not to leave the moving rail departure prevention upper plate 68 by the moving rail 14 when moving out of the upper plate 12 during expansion and re-entry problems that may occur when the reentry and the sleeper caused by this Eliminate the problem of the elastic action such as the jungle of (62).

In another method, the bottom end 69 of the moving rail 14 may be machined to a predetermined portion so that the moving rail 14 may smoothly enter the upper plate 12 when the moving rail 14 is stretched.

In addition, the side surface of the bottom contact surface 69 of the moving rail 14 of the upper plate 12 is formed by processing the inclined portion 66 so that the moving rail 14 can enter smoothly.

As described above, the elastic fastening single-ended expansion joint device for PC sleepers according to the present invention has the following effects.

First, the elastic fastening single-ended expansion joint device for PC sleepers according to the present invention has a relatively long advantage of the amount of expansion ± 62.5mm ~ ± 300mm.

Secondly, the elastic fastening single-ended expansion joint device for PC sleepers according to the present invention has the advantage that the toll head is thick according to the shape of the toil processing, so that the service life is long.

Third, the elastic fastening single-ended expansion joint device for PC sleepers according to the present invention has the advantage that the maintenance cost is low due to the fully elastic fastening type.

Fourth, the elastic fastening single-ended expansion joint device for PC sleepers according to the present invention has the advantage that the image of the track is stable due to the use of PC sleepers.

Fifth, the elastic fastening single-ended expansion joint device for PC sleepers according to the present invention has the advantage that the structure is simple to rotate the top plate, easy to maintain by fixing the basic rail side.

Claims (16)

An upper plate 12 is installed on the upper pad 10, and a moving rail 14 is installed at one side of the upper plate 12, and insulating blocks 16 are provided at both ends of the upper plate 12 with elastic clips ( 18) is fixedly installed, the clip plate 22 formed with a clip hook 20 on one side of the top plate 12 is welded, the elastic clip 18 is inserted into the clip hook 20 is installed, An adjustment plate 24 is installed on one side of the clip plate 22, a chuck 26 is installed on the adjustment plate 24, and a lower portion of the adjustment plate 24 and the movable rail 14. The rail brace 28 is installed on one side of the abdomen, and the rail support 67 is installed on the other abdomen and the upper plate 12 of the movable rail 14 by bolts 30 and nuts 32. A moving rail part; Tongue rail 34 is installed on the other side of the upper plate 12 so that the expansion and contraction to the movable rail 14 side, the insulating block 16 is fixed to both sides of the upper plate 12 by the elastic clip 18. Is installed, the clip plate 22 is formed on the other side of the upper plate 12, the clip hook 20 is welded, the elastic clip 18 is inserted into the clip hanger 20 is installed, the clip plate 22 The control plate 24 is installed on one side of the), the chuck 26 is installed on the control plate 24, the lower part of the control plate 24 and one side of the tongue rail 34 Elastic fastening one-way expansion joint device for PC sleepers, characterized in that consisting of a tongue rail portion is provided with a rail brace 28 over. The method of claim 1, The tongue rail 34 has a width of a certain thickness at its tip portion 36 and processes the curve R1 to one half of the head width of the tongue rail 34 while going to the rear end, and the other half portion. Elastic fastening single-ended expansion joint device for a PC sleeper, characterized in that formed in the S-shape with the opposite curve (R2). The method of claim 1, The tongue rail 34 has a width of a certain thickness at its tip portion 36, and the curve R1 is processed more than one-half of the head width of the tongue rail 34 while going to the rear end. Forming a primary curve (R1), and the remaining 1/3 of the elastic fastening one-way expansion joint device for PC sleepers, characterized in that formed by the opposite curve (R2). The method of claim 1, The tongle 34 is formed in a C-shape up to a point 38 at which the head shape of the tongle 34 is formed by one curve R at a constant thickness of the tip portion 36. Elastic fastening one-way expansion joint device for sleepers. The method of claim 1, The movable rail 14 is processed to a certain angle in the outer downward direction of the movable rail 14, the elastic fastening one-way expansion joint for PC sleepers, characterized in that configured to match the wheel contact width between 90 ~ 97mm Device. The method of claim 1, At the end of the section where the movable rail 14 and the tongue rail 34 are in contact with each other, when the distance between the bottom widths of the contact portions exceeds 240 mm, the cutting rail 42 is formed by cutting the movable rail 14 and the tongue rail bottom portion 40 in a predetermined portion. Elastic fastening one-way expansion joint device for PC sleepers characterized in that. The method of claim 1, The moving rail 14 has a rail moving support 44 in close contact with one side of its abdomen, and a rail support 67 is fixed to the rail moving support 44 by bolts 30 and nuts 32. Elastic fastening one-way expansion joint device for PC sleepers characterized in that. The method of claim 7, wherein Elastic fastening one-way expansion joint device for a PC sleeper, characterized in that the insertion of a plurality of adjustment plate 46 between the rail moving support 44 and the rail support (67). The method of claim 1, The elastic clip 18 is installed so as to press the sleeper movement preventing angle 52, the sleeper movement preventing angle 52 is fixed to the shoulder 48 installed thereunder, the shoulder 48 to the angle fixing projection ( 50), the sleeper movement preventing angle 52 is installed on the angle fixing protrusion 50, and the elastic clip 18 is installed on the sleeper movement preventing angle 52, the elastic clip 18 Elastic fastening one-way expansion joint device for PC sleepers, characterized in that configured to press the sleeper movement prevention angle (52). The method of claim 1, The tongue rail 34 is formed with a concave groove 54 to concave the bottom portion 40 of the tongue rail 34, and the locking jaw 56 of the movable rail release preventing upper plate 68 is formed in the concave groove 54. It is formed so as to catch, elastic fastening one-way expansion joint device for PC sleepers, characterized in that to prevent the movement of the tongue rail (34). The method of claim 1, The top plate 12 forms a circle having both end portions of the top plate 12 having a constant curve R from the center of the top plate 12 to the ends, and insulating blocks at both ends of the top plate 12. (16) elastic fastening one-way expansion joint device for sleepers, characterized in that configured to rotate by inserting. The method of claim 11, The top plate 12 has protrusions 58 formed on both side ends of the top plate 12, and a plurality of grooves 60 are formed on the contact surface of the lower surface of the insulating block 16, so that the top plate 12 is Elastic fastening single-stage expansion joint device for a PC sleeper, characterized in that configured to insert the projections (58) in the groove (60) of the insulating block (16) when rotating at regular intervals. The method of claim 11 or 12, Between the top plate 12 and the insulating block 16 is inserted into the control piece 64 of a certain thickness, and protruding the control piece 64 to the outside to form a U-shape to contact the side of the top plate 12. Elastic fastening one-step expansion joint device for PC sleepers characterized in that. The method of claim 1, Wherein the moving rail 14 and the end of the tongue rail 34 is installed on the moving rail departure prevention top plate 68, characterized in that the installation of a wide moving rail departure prevention top 68 to cover the two sleepers Elastic fastening one-way expansion joint device for PC sleepers. The method of claim 1, The elastic fastening one-way expansion joint device for a PC sleeper, characterized in that configured to be able to smoothly enter the upper plate (12) during the expansion and contraction of the rail by the end portion 69 of the moving rail (14). The method according to claim 14 or 15, The upper plate 12 stretches elastic fastening one-way stretch for PC sleepers, characterized in that the inclined portion 66 is formed so that the rail smoothly enters the side of the bottom contact surface 69 of the movable rail 14 of the upper plate 12. Seam.