Railway fastener system without bolt buckling elastic strip

Abstract

The utility model relates to a railway fastener system without a bolt buckling elastic strip. A fastener elastic strip for fastening a railway track through a bolt is easy to loosen. The system comprises an elastic strip, a buckle spring wall seat and a mid-limb buckling part, the elastic strip is located above the base plate and comprises a rail pressing front limb, a rear seat limb and a buckling middle limb. The buckling spring wall bases are vertically arranged on the two longitudinal sides of the buckling middle limb and are integrally formed with the base plate. A wall base guide groove is formed in the buckle spring wall base, and the middle limb buckling and pressing piece is inserted into the wall base guide groove, guided to the upper portion of the buckling and pressing middle limb and downwards fastens and presses the buckling and pressing middle limb. The mode that the buckle spring wall base is combined with the mid-limb buckling piece is adopted, the elastic strip is rapidly buckled at a time, the operation of buckling the elastic strip by screwing a bolt is abandoned, and the installation speed and quality are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a railway fastener system without bolt-loaded spring strips. Background Art

[0002] At present, railway fasteners are mainly Pandrol's e-clip series, FAST fast clip series and Vossloh's W-clip series fasteners. Among them, e-clip and FAST fast clip have the advantage of fast installation, but e-clip is installed by single-limb buckling, and the material stress is generally too large and easy to break; although FAST fast clip is double-limb single-point buckling, it has no third point contact rail foot surface protection for small rail flips caused by curved sections with large lateral forces. Although W-clip is double-limb buckled, the middle limb contacts the rail foot surface, which can limit small rail flips, but it is a bolt fastener, which relies on bolts to tighten the middle limb during buckling. The bolts are easy to loosen during operation, and the fastener assembly, repair and maintenance are large.

[0003] Therefore, it is necessary to propose new measures to overcome the above-mentioned defects. Summary of the invention

[0004] The utility model aims to provide a railway fastener system without bolt-loaded spring bars, so as to solve the problem of easy loosening of the spring bars of the fasteners currently fastened by bolts.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A railway fastener system without bolt-clip spring clips, the system comprising spring clips, spring wall seats and middle-limb clips;

[0007] The spring bar is located above the base plate and includes a rail pressing front limb, a rear seat limb and a buckling middle limb;

[0008] The buckle spring wall seat is vertically arranged on both longitudinal sides of the buckle pressing middle limb and is integrally formed with the base plate;

[0009] The buckle spring wall seat is provided with a wall seat guide groove, the middle limb buckling piece is inserted into the wall seat guide groove and guided to the top of the buckling middle limb, and the buckling middle limb is tightened downward.

[0010] Furthermore, the spring bar is a BI-type spring bar, which has a rail-pressing front limb and is pressed onto the rail, and the BI-type spring bar has two rear limbs and two buckling middle limbs, and an arc-shaped groove is provided on the top of the buckling middle limb.

[0011] Furthermore, the middle limb buckling piece is a buckle spring plate, and the buckle spring plate is a vertical plate structure with two pairs of short cylinders arranged on both sides;

[0012] The short cylinder is inserted into the wall seat guide groove, and the spring plate moves inward and downward and is pressed into the arc-shaped groove.

[0013] Furthermore, the outer wall of the short cylinder at the lower part is provided with a triangular notch, and the edge of the arc-shaped groove is provided with a triangular tooth;

[0014] After the short cylinder at the lower part is inserted into the wall seat guide groove, the triangular teeth and the triangular notches are engaged with each other.

[0015] Furthermore, the elastic bar is a BII type elastic bar, which has a rail-pressing front limb and is pressed onto the rail, and has two rear seat limbs and two clamping middle limbs, and the end of the clamping middle limb of the BII type elastic bar has a middle limb front end overlapping portion, and the middle limb front end overlapping portion is located above the rail-pressing front limb.

[0016] Furthermore, the middle limb buckling piece is a buckle spring plate, and the buckle spring plate is a folding plate structure with short cylinders arranged on both sides;

[0017] The short cylinder is inserted into the wall seat guide groove, and the buckle spring plate is twisted and moved outward and downward and pressed onto the top of the buckle middle limb.

[0018] Furthermore, the spring bar is a Type III spring bar, which has two rail-pressing front limbs, which are respectively pressed on the steel rails, and the Type III spring bar has two rear seat limbs and two clamping middle limbs, and the two clamping middle limbs are transitioned through the front end of the middle limb, and the front end of the middle limb is located between the two rail-pressing front limbs and pressed on the steel rail.

[0019] Furthermore, the middle limb buckling piece includes a locking spring steel pin and a locking steel pin insert plate;

[0020] The locking spring steel pin is inserted into the wall seat guide groove and horizontally pressed on the top of the buckling middle limb;

[0021] The locking steel pin inserting plate is door-shaped, inserted into the wall seat guide groove and blocked at the side of the locking spring steel pin.

[0022] Furthermore, the system also includes an iron plate anchoring and positioning device, and the iron plate anchoring and positioning device is arranged on both sides of the rail;

[0023] The iron plate anchoring and positioning device fixes the iron plate on the track sleeper.

[0024] Further, the iron plate anchoring positioning device comprises an anchor bolt and a star-shaped positioner;

[0025] The outer wall of the star-shaped positioner has tooth grooves and is provided with vertically eccentric positioner bolt holes;

[0026] The iron pad is provided with a star-shaped locator insertion hole correspondingly, and the hole wall is provided with a tooth groove, and the star-shaped locator is located in the star-shaped locator insertion hole and bites each other;

[0027] The anchor bolt is inserted into the locator bolt hole and inserted into the embedded sleeve preset on the sleeper.

[0028] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0029] The utility model provides a railway fastener system without bolts to buckle spring strips. It adopts the combination of spring wall seat and middle limb buckling piece to buckle spring strips quickly at one time, abandons the operation of tightening bolts to buckle spring strips, and improves installation speed and quality. In addition, the front limb buckles the rails and the middle limb contacts the limiter on heavy-load, fast and high-speed railways to avoid small flipping of the rails: only the front limb buckles the rails on low-speed, light rail and meter-gauge railways to save construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a plan view of embodiment 1 of the utility model.

[0032] Figure 2 It is an elevation view of embodiment 1 of the present utility model.

[0033] Figure 3 It is a side view of the combination of the spring wall seat and the spring plate of Example 1 of the utility model.

[0034] Figure 4 It is a combined elevation view of a spring-locking wall seat and a spring-locking plate in Example 1 of the utility model.

[0035] Figure 5 It is a structural diagram of the spring plate of Example 1 of the utility model.

[0036] Figure 6 It is a structural diagram of a short cylinder of a spring plate in Example 1 of the utility model.

[0037] Figure 7 It is a plan view of embodiment 2 of the present utility model.

[0038] Figure 8 It is a vertical view of embodiment 2 of the present utility model.

[0039] Fig. 9It is a side view of the combination of the spring wall seat and the spring plate of Example 2 of the utility model.

[0040] Fig.10 It is a combined elevation view of a spring-locking wall seat and a spring-locking plate in Embodiment 2 of the present utility model.

[0041] Fig.11 It is a structural diagram of the spring plate of Example 2 of the utility model.

[0042] Fig.12 It is a structural diagram of a short cylinder of a spring plate in Embodiment 2 of the present utility model.

[0043] Fig.13 It is a plan view of embodiment 3 of the present utility model.

[0044] Fig.14 It is a vertical view of embodiment 3 of the present utility model.

[0045] Fig.15 It is a side view of the combination of a buckle spring wall seat and a locking steel pin plug plate of Example 3 of the utility model.

[0046] Fig.16 It is a combined elevation view of a buckle spring wall seat and a locking steel pin insert plate of Example 3 of the utility model.

[0047] Fig.17 It is a structural diagram of a locking steel pin plug plate of Example 3 of the present utility model.

[0048] Fig.18 It is a schematic diagram of the separate fastener arrangement of Example 2 of the utility model.

[0049] Fig.19 It is a schematic diagram of the arrangement of the direct-connect fasteners of Example 2 of the utility model.

[0050] Fig. 20 It is a schematic diagram of the arrangement of the direct-connect fasteners of Example 1 of the utility model.

[0051] Fig.21 It is a schematic diagram of height adjustment and direction adjustment of the separate fastener of Example 2 of the utility model.

[0052] Fig. 22 It is a plan view of the star-shaped positioner of the utility model.

[0053] Fig.23 It is a cross-sectional view of the star-shaped positioner of the utility model.

[0054] Fig.24 It is a plan view of a square rack direction adjustment and positioning block of the utility model.

[0055] Fig.25 It is a cross-sectional view of a square rack direction adjustment and positioning block of the utility model.

[0056] Fig.26 It is a plan view of the square rack hole of the iron pad of the utility model.

[0057] The symbols in the figure are:

[0058] 1-elastic strip, 2-spring wall seat, 3-wall seat guide groove, 4-spring plate, 5-short cylinder, 6-triangular notch, 7-lock spring steel pin, 8-lock steel pin plug plate, 9-rail, 10-rail under-rail rubber pad, 11-height adjustment pad, 12-insulating gauge block, 13-iron pad, 14-iron pad anchoring device, 15-base plate, 16-coupling pad, 17-large rubber pad under the plate;

[0059] 101-rail pressing front limb, 102-back seat limb, 103-buckle middle limb, 104-arc groove, 105-middle limb front end overlap portion, 106-middle limb front end;

[0060] 1401-anchor bolt, 1402-steel spring washer, 1403-flat washer, 1404-star positioner, 1405-embedded sleeve, 1406-square rack adjustment positioning block;

[0061] 140401-Locator cover, 140402-Locator lower part, 140403-Locator bolt hole, 140404-Digital mark;

[0062] 140601- positioning block cover, 140602- positioning block lower part, 140603- positioning block bolt hole, 140604- iron pad square rack hole. DETAILED DESCRIPTION

[0063] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0064] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0065] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connection", "setting", etc. should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integral connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In a specific embodiment, the direction of the rail is defined as the longitudinal direction.

[0067] The utility model provides a railway fastener system with bolt-free clamping spring strips. The spring strips are fixed by clamping, and the use of bolts is abandoned, so the fixing effect is more stable and reliable. The system includes a spring strip 1, a spring wall seat 2 and a middle limb clamping piece. The spring strip 1 is located above the base plate 15, and is made of round spring steel, including a rail-pressing front limb 101, a rear seat limb 102 and a clamping middle limb 103. The spring wall seat 2 is vertically arranged on both longitudinal sides of the clamping middle limb 103, and is integrally formed with the base plate 15 or the embedded seat, and the base plate 15 is a part of the iron pad or the embedded seat. A wall seat guide groove 3 is provided on the spring wall seat 2, and the middle limb clamping piece is inserted into the wall seat guide groove 3 and guided to the top of the clamping middle limb 103, and the clamping middle limb 103 is tightened downward.

[0068] The utility model has the following three implementation methods:

[0069] Embodiment 1:

[0070] like Figure 1-Figure 6 In this embodiment, the spring bar 1 is a BI-type spring bar, which has a rail-pressing front limb 101 and is pressed onto the rail 9. The BI-type spring bar has two rear limbs 102 and two buckling middle limbs 103, and an arc-shaped groove 104 is provided on the top of the buckling middle limb 103.

[0071] The buckling member of the middle limb of the buckling BI-type spring bar is a buckling spring plate 4. The wall seat guide grooves 3 of the buckling spring wall seats 2 on both sides are of the same shape and symmetrically parallel. The buckling spring plate 4 is a vertical plate structure, and two pairs of short cylinders 5 are arranged on both sides. The short cylinder 5 is inserted into the wall seat guide groove 3, and the buckling spring plate 4 moves inward and downward and presses into the arc groove 104, which is the force application point of the buckling spring plate 4. The outer wall of the short cylinder 5 at the lower part is also provided with a triangular notch 6, and the edge of the arc groove 104 is provided with a triangular tooth. After the short cylinder 5 at the lower part is inserted into the wall seat guide groove 3, the triangular tooth and the triangular notch 6 are mutually locked. When the triangular notch 6 moves to the triangular tooth at the turning point of the left edge of the wall seat guide groove 3 and engages with it, it serves as a force fulcrum for the spring plate 4 to continue to push downward. When the spring plate 4 is pushed to the vertical position of the wall seat guide groove 3, it is locked by the arc shape on the upper right side of the wall seat guide groove 3, and at the same time, the lower part of the spring plate 4 reaches the position of buckling the spring strip.

[0072] The pressing action includes:

[0073] Place the spring bar 1 at the predetermined position, then place the short cylinder 5 at the bottom of the spring plate 4 forward, with the triangular notch 6 on it facing downward, and then follow up and put it into the groove from the entrance of the wall seat guide groove 3 between the two spring wall seats 2, keeping it vertical to the spring wall seat 2, so that the triangular notch 6 matches the triangular tooth at the lower left of the wall seat guide groove 3, then clamp the upper end of the spring plate 4 with a wrench and lift it up and apply a push-rotation force to one side of the rail, so that the short cylinder 5 at the bottom of the spring plate 4 slides along the lower vertical guide groove and the buckling middle limb 103 is pressed downward and displaced, while the short cylinder 5 at the top of the spring plate 4 slides along the upper edge of the wall seat guide groove 3 to the arc-shaped locking position at the upper right of the wall seat guide groove 3, and the spring plate 4 is in the vertical locking position. The downward displacement of the buckling middle limb 103 enables the spring bar to complete the designed spring travel, and the rail pressing end of the spring bar reaches the designed pressure. When the buckling state of the spring bar needs to be released, it is only necessary to clamp the upper part of the buckling spring plate 4 with a wrench and rotate it in the opposite direction.

[0074] This embodiment is applicable to low-speed, light rail and meter-gauge railways, and can only use double-limb clamping rails.

[0075] Embodiment 2:

[0076] like Figure 7-Figure 12 In this embodiment, the spring clip 1 is a BII type spring clip, which has a rail-pressing front limb 101 and is pressed on the rail 9, and has two rear limbs 102 and two buckling middle limbs 103. The end of the buckling middle limb 103 of the BII type spring clip has a middle limb front end lap portion 105, and the middle limb front end lap portion 105 is located above the rail-pressing front limb 101. When the lower part of the middle limb front end lap portion 105 is in close contact or close to the upper part of the rail-pressing front limb 101, the rail-buffering pressure of the spring clip is reached, and at the same time, due to the constraint of the buckling middle limb 103 on the rail-pressing front limb 101, the anti-rollover ability of the rail is strengthened.

[0077] The buckling part of the middle limb of the buckling BII type spring bar is a buckling spring plate 4, the wall seat guide grooves 3 of the buckling spring wall seats 2 on both sides are of the same shape and symmetrically parallel, the buckling spring plate 4 is a folded plate structure, and short cylinders 5 are arranged on both sides. When the buckling spring plate 4 is perpendicular to the buckling spring wall seat 2 and placed in the middle of the buckling spring wall seat 2, the two pairs of short cylinders 5 are just located in the wall seat guide grooves 3, and the buckling spring plate 4 can move inside the buckling spring wall seat 2. The short cylinder 5 is inserted into the wall seat guide groove 3, and the buckling spring plate 4 twists and moves outward and downward and presses on the top of the buckling middle limb 103.

[0078] The pressing action includes:

[0079] Place the spring bar 1 at the predetermined position, and then point the short cylindrical end 5 of the lower part of the spring plate 4 toward the upper right side (rail side), so that the upper short cylindrical end 5 enters the middle of the groove from the notch of the wall seat guide groove 3 on the right side of the two walls, and then clamp the upper part of the spring plate 4 with a wrench tool and press it to the lower left, so that the spring plate moves along the Fig.10The pressing direction of the arrow in the figure makes the lower short cylinder 5 enter the bottom left side of the wall seat guide groove 3. Since the middle limb 103 is compressed by the lower part of the spring plate 4 to form a displacement that can form an elastic range, an elastic force is also formed on the spring plate 4. This force keeps the spring plate 4 in a stable locked state under the constraint of the wall seat guide groove 3. When it is necessary to release the buckling state of the fastener, use a wrench tool to clamp the upper part of the spring plate 4 and operate in reverse.

[0080] This embodiment is suitable for heavy loads, high speeds, express trains, subways, etc., and adopts the front limbs and the middle limbs to contact and clamp the rails to prevent the rails from tipping over.

[0081] Embodiment 3:

[0082] like Figure 13-Figure 17 In this embodiment, the spring bar 1 is a type III spring bar, which is improved from an upward bend to a downward bend after the plane distance of the middle limb becomes closer on the basis of the traditional W-type spring bar structure. The type III spring bar has two rail-pressing front limbs 101, which are respectively pressed on the rail 9. The type III spring bar has two rear limbs 102 and two buckling middle limbs 103. The two buckling middle limbs 103 are transitioned through the front end 106 of the middle limb. The front end 106 of the middle limb is located between the two rail-pressing front limbs 101 and is pressed on the rail 9. When the front end 106 of the middle limb overcomes the elastic stroke and contacts the upper surface of the rail foot, the rail-buffering force of the spring bar is achieved. At the same time, due to the third point contact of the front end 106 of the buckling middle limb with the buckling point of the rail, the small tipping of the rail is restrained, and the anti-tipping ability of the rail is enhanced.

[0083] The middle limb buckling part of the buckling type III spring bar includes a locking spring steel pin 7 and a locking steel pin insert 8. The wall seat guide grooves 3 of the buckling spring wall seats 2 on both sides are of the same shape and symmetrically parallel. The locking spring steel pin 7 is inserted into the wall seat guide groove 3 and horizontally pressed on the top of the buckling middle limb 103. The locking steel pin insert 8 is door-shaped, inserted into the wall seat guide groove 3 and blocked on the side of the locking spring steel pin 7. The two ends of the locking spring steel pin 7 extend into the wall seat guide groove 3, and the middle part presses on the upper part of the buckling middle limb 103, so that the buckling middle limb 103 of the spring bar is pressed downward. After its deformation reaches the elastic range at the front limb 101 of the rail pressure, the fastener reaches the designed buckling pressure on the rail.

[0084] The pressing action includes:

[0085] First, place the spring bar 1 at a predetermined position, then place the locking spring steel pin 7 perpendicular to the inner side of the spring wall seat 2, and place the two ends of the locking spring steel pin 7 from the opening of the wall seat guide groove 3 on the inner side of the wall into the buckling middle limb 103 between the two walls, then use a lever tool to press the locking spring steel pin 7 to the circular position at the bottom of the wall seat guide groove 3, and then insert the locking steel pin plug plate 8 from the upper opening of the wall seat guide groove 3, and the buckling and locking of the spring bar is completed. At this time, the buckling middle limb 103 is pressed down so that the buckling middle limb 103 completes the designed spring stroke, and at the same time, the rail pressing front limb 101 of the spring bar reaches the required buckling pressure.

[0086] This embodiment is suitable for heavy loads, high speeds, express trains, subways, etc., and adopts the front limbs and the middle limbs to contact and clamp the rails to prevent the rails from tipping over.

[0087] The system of the utility model can be arranged symmetrically on both sides of the rail 9 or arranged front and back.

[0088] According to the different axle loads and speeds of the vehicles, the required buckling pressure and anti-rollover capability can be achieved by adjusting the diameter and overall dimensions of the spring bars. The whole set of fastener assembly design can achieve safety, stability, elasticity, adjustable track and height, insulation, durability, technical indicators and good economy.

[0089] The three types of spring bars of the utility model, BI, BII and III, can be applied to both the split fasteners of ballastless track and the direct fasteners of ballasted track. When applied to the split fasteners, the spring wall seat 2 and the iron pad are designed and cast as one body. When applied to the direct fasteners, the spring wall seat 2 and the embedded seat are designed and cast as one body.

[0090] like Fig.18 , the BII type spring bars of Example 2 can be arranged in the form of separate fasteners, with the two sides staggered front and back. An iron pad anchoring positioning device 14 is provided on one longitudinal side of the system, and the iron pad anchoring positioning device 14 fixes the iron pad 13 on the track sleeper. The iron pad anchoring positioning device 14 includes an anchor bolt 1401 and a star-shaped locator 1404. The outer wall of the star-shaped locator 1404 has a tooth groove, and is provided with a vertically eccentric locator bolt hole 140403. A star-shaped locator socket is correspondingly provided on the iron pad 13, and the hole wall is provided with a tooth groove. The star-shaped locator 1404 is located in the star-shaped locator socket and bites each other. The anchor bolt 1401 is inserted into the locator bolt hole 140403 and screwed into the preset embedded sleeve 1405 on the sleeper.

[0091] like Fig.19 The BII type spring bars of Example 2 can be arranged in the form of direct-connection fasteners, and the system is bilaterally symmetrical.

[0092] like Fig. 20 The BI-type spring bar of Example 1 can be arranged in the form of a straight-connected fastener, and the system is bilaterally symmetrical.

[0093] like Figure 21-23 , the fastener system of the utility model can be adjusted in height and track direction:

[0094] 1. Separate fastener height adjustment:

[0095] In order to make the fasteners have better elasticity, split fasteners are usually used in ballastless track integral roadbed or slab track. Due to the construction error of ballastless track and the post-construction settlement of foundation, the fasteners need to have greater geometrical adjustable function. There are two measures for adjusting the height of rail 9: adjusting the height below the rail and adjusting the height below the iron pad 13.

[0096] Heightening under the rail: remove the spring bars on both sides of the rail, insert heightening pads 11 under the rail or between the rubber pad 10 under the rail and the iron pad 13, and at the same time change the thickness of the upper flange of the insulating gauge blocks 12 on both sides of the rail. The reduced thickness is equal to the thickness of the inserted heightening pads 11. During operation, when the spring bars become loose, 1-2mm thick heightening pads 11 can be inserted as mentioned above without replacing the insulating gauge blocks 12 to restore the clamping pressure on the rail. The maximum value of the heightening under the rail is determined by the initial upper flange thickness of the insulating gauge blocks and the thinnest thickness limit. Under normal circumstances, the heightening value under the rail is not greater than 6mm.

[0097] Height adjustment under the iron pad: Loosen the anchor bolts 1401 on both sides of the rail, insert the height adjustment pad 11 under the large rubber pad 17 under the plate or under the coupling pad 16, and then tighten the anchor bolts 1401. The height adjustment value under the iron pad is about 20mm, and the maximum height adjustment capacity of the whole set of fasteners is determined by the design parameters of the sum of the height adjustment values ​​under the rail and under the iron pad.

[0098] 2. Separate fastener track adjustment:

[0099] A steel spring washer 1402 and a flat washer 1403 are also provided below the anchor bolt 1401. The ability of the split fastener to adjust the track gauge and track direction is determined by the adjustment value of the structure shown by the replacement of the lateral thickness number of the insulating gauge block 12 and the iron plate anchoring device. When the direction and distance need to be adjusted, the adjustment function of the insulating gauge block number or the anchoring device is adopted to adjust the track gauge and track direction alone or together.

[0100] The star-shaped positioner 1404 can also be adjusted and positioned by cooperating with the star-shaped tooth holes of the iron pad. On the positioner cover 140401, corresponding to its half-height teeth, there are digital signs 140404 for adjusting the distance and direction, which have a total of 8 gears, and 4 gears for adjusting the direction to the left and right. The lower part 140402 of the positioner is provided with a total of 16 vertical racks, which are evenly distributed along the circular periphery. The lower part 140402 of the positioner passes through the anchoring star-shaped tooth holes of the iron pad from top to bottom and bites with the star-shaped tooth holes of the iron pad. The bolt hole 140403 of the positioner is eccentrically arranged with the positioner.

[0101] The height L of the lower part 140402 of the positioner is related to the depth of the star-shaped hole set in the iron pad and the thickness of the large rubber pad under the iron pad, and different sizes are designed according to different fasteners. The depth M of the star-shaped rack hole is designed according to the lateral stability of the fastener anchoring and the vertical elastic displacement of the iron pad.

[0102] The star-shaped positioner 1404 can also be replaced by a square rack adjustment positioning block 1406, such as Figure 24-26The outer walls of the front and rear sides of the square rack adjustment and positioning block 1406 have racks and are provided with vertical positioning block bolt holes 140603. The iron pad 13 is provided with a corresponding iron pad square rack hole 140604, and tooth grooves are provided on the front and rear sides of the hole wall. The square rack adjustment and positioning block 1406 is located in the iron pad square rack hole 140604 and engages with each other. The anchor bolt 1401 is inserted into the positioning block bolt hole 140603 and screwed into the preset embedded sleeve 1405 on the sleeper. The square rack adjustment and positioning block 1406 can be moved left and right to reverse one or several pitches, and the square rack adjustment and positioning block 1406 can be turned 180 degrees to adjust to half a pitch, one and a half pitches or more.

[0103] 3. Height and distance adjustment of direct-connect fasteners:

[0104] Direct-connect fasteners are generally used on ballasted track sleepers. The track height is mainly adjusted by adding ballast thickness under the sleepers. When a small amount of track height adjustment is required, the aforementioned method of adding a track height adjustment pad while reducing the thickness of the upper flange of the insulating gauge block can be used for adjustment.

[0105] When the track is operated for a long time, the side grinding of the rails will expand the track gauge, and the track gauge needs to be adjusted. The adjustment method is mainly to replace the insulating track gauge blocks with different numbers. If the track direction changes, it can be achieved by moving the sleepers horizontally.

[0106] The utility model can be widely applied to the design of fasteners for various types of tracks at present. The manufacturing process of various components in the fasteners involved is basically the same as the current existing process, and the required various materials and their technical indicators are the same as the current standards.

[0107] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. Railway fastener system without bolts and spring bars, Features: The system comprises an elastic bar (1), a buckle spring wall seat (2) and a middle limb buckle pressing piece; The spring bar (1) is located above the base plate (15), and comprises a rail-pressing front limb (101), a rear seat limb (102) and a buckling middle limb (103); The buckle spring wall seat (2) is vertically arranged on both longitudinal sides of the buckle pressing middle limb (103), and is integrally formed with the base plate (15); The buckle spring wall seat (2) is provided with a wall seat guide groove (3), and the middle limb buckling piece is inserted into the wall seat guide groove (3) and guided to the top of the buckling middle limb (103), and the buckling middle limb (103) is tightened downward.

2. The railway fastener system with bolt-free spring clip according to claim 1, Features: The spring bar (1) is a BI-type spring bar, the BI-type spring bar has a rail-pressing front limb (101) which is pressed onto the steel rail (9), the BI-type spring bar has two rear seat limbs (102) and two buckling middle limbs (103), and the top of the buckling middle limb (103) is provided with an arc-shaped groove (104).

3. The railway fastener system with bolt-free spring clip according to claim 2, Features: The middle limb buckling piece is a buckling spring plate (4), and the buckling spring plate (4) is a vertical plate structure with two pairs of short cylinders (5) arranged on both sides; The short cylinder (5) is inserted into the wall seat guide groove (3), and the spring plate (4) moves inward and downward and is pressed into the arc-shaped groove (104).

4. The railway fastener system with bolt-free spring clip according to claim 3, Features: The outer wall of the short cylinder (5) at the lower part is provided with a triangular notch (6), and the edge of the arc-shaped groove (104) is provided with a triangular tooth; After the short cylindrical column (5) at the bottom is inserted into the wall seat guide groove (3), the triangular teeth and the triangular notches (6) are engaged with each other.

5. The railway fastener system with bolt-free spring clip according to claim 1, Features: The spring bar (1) is a BII-type spring bar, the BII-type spring bar has a rail-pressing front limb (101) and is pressed onto the rail (9), the BII-type spring bar has two rear limbs (102) and two pressing middle limbs (103), the end of the pressing middle limb (103) of the BII-type spring bar has a middle limb front end overlap portion (105), and the middle limb front end overlap portion (105) is located above the rail-pressing front limb (101).

6. The railway fastener system with bolt-free spring clip according to claim 5, Features: The middle limb buckling piece is a buckle spring plate (4), and the buckle spring plate (4) is a folded plate structure with short cylinders (5) arranged on both sides; The short cylinder (5) is inserted into the wall seat guide groove (3), and the buckling spring plate (4) is twisted and moved outward and downward and pressed onto the top of the buckling middle limb (103).

7. The railway fastener system with bolt-free spring clip according to claim 1, Features: The spring bar (1) is a type III spring bar, the type III spring bar has two rail-pressing front limbs (101) respectively pressed on the steel rail (9), the type III spring bar has two rear seat limbs (102) and two pressing middle limbs (103), the two pressing middle limbs (103) are transitioned through a middle limb front end (106), and the middle limb front end (106) is located between the two rail-pressing front limbs (101) and pressed on the steel rail (9).

8. The railway fastener system with bolt-free spring clip according to claim 7, Features: The middle limb buckling piece comprises a locking spring steel pin (7) and a locking steel pin insert plate (8); The locking spring steel pin (7) is inserted into the wall seat guide groove (3) and horizontally pressed on the top of the buckling middle limb (103); The locking steel pin inserting plate (8) is door-shaped, inserted into the wall seat guide groove (3) and blocked on the side of the locking spring steel pin (7).

9. The railway fastener system with bolt-free spring clip according to claim 1, Features: The system further comprises an iron plate anchoring and positioning device (14), wherein the iron plate anchoring and positioning device (14) is arranged on both sides of the steel rail (9); The iron plate anchoring device (14) fixes the iron plate (13) on the track sleeper.

10. The railway fastener system with bolt-free spring clips according to claim 9, Features: The iron plate anchoring and positioning device (14) comprises an anchor bolt (1401) and a star-shaped positioner (1404); The outer wall of the star-shaped positioner (1404) has a tooth groove and is provided with a vertically eccentric positioner bolt hole (140403); The iron pad (13) is provided with a star-shaped positioner insertion hole correspondingly, and the hole wall is provided with a tooth groove, and the star-shaped positioner (1404) is located in the star-shaped positioner insertion hole and engages with each other; The anchor bolt (1401) is inserted into the locator bolt hole (140403) and inserted into the embedded sleeve (1405) preset on the sleeper.

Images