Rail brace type elastic strip and elastic strip rail brace type fastener system

Abstract

The utility model discloses a rail brace type elastic strip which comprises an elastic strip body, a vertical supporting part is arranged at the bottom of the elastic strip body, the vertical supporting part vertically limits the rail bottom of a steel rail, an elastic strip middle limb or an elastic strip side limb is bent upwards in an inclined mode to form a transverse supporting part, and the transverse supporting part transversely supports and limits the rail waist of the steel rail. The utility model further discloses an elastic strip rail brace type fastener system which comprises an insulation coupling base plate, a bottom base plate and an under-rail pad which are arranged from bottom to top, the rail brace type elastic strip is arranged at the position, corresponding to the outer side of the steel rail, of the bottom base plate, an insulation module is arranged at the position, corresponding to the rail brace type elastic strip and the steel rail, of the bottom base plate, and a second elastic strip is arranged at the position, corresponding to the inner side of the steel rail, of the bottom base plate. The transverse limiting function of the rail waist of the steel rail is increased through the structural design of the rail brace elastic strips, and the elastic strip rail brace type fastener system which is high in transverse stability and low in installation and maintenance cost is achieved on the premise that elastic split type fastener parts are not increased.

Description

Technical Field

[0001] The utility model relates to the field of rail transportation, in particular to a rail-supporting spring bar and a spring bar rail-supporting fastener system. Background Art

[0002] In the field of rail transit vibration reduction, elastic split fasteners are widely used in existing domestic lines due to their relatively simple structure and low production, installation and maintenance costs. For example, the existing public technology: CN215947755U-A high-grade vibration reduction fastener for urban rail transit, which discloses a rail pad, an upper iron pad, a middle vibration reduction pad, a vibration isolation plate, a vibration reduction pad under the plate, a lower iron pad, an insulating coupling pad and a fixing device; the rail pad, the upper iron pad, the middle vibration reduction pad, the vibration isolation plate, the vibration reduction pad under the plate, the lower iron pad and the insulating coupling pad are arranged layer by layer from top to bottom; in this scheme, the elastic split fastener mainly vertically constrains the bottom of the rail through elastic elements such as spring bars. Because the rail head is subjected to vertical and lateral forces during the running of the train, but the rail waist lacks a lateral limit structure, the fastener has a small torsional stiffness, the rail head is prone to deflection, and the lateral displacement of the rail head is relatively large. This is not conducive to track gauge maintenance and the comfort and safety of trains during travel, and is prone to induce rail corrugation. Currently, the elastic split fastener has not yet achieved the structure and function of the fastener rail waist support. Utility Model Content

[0003] The purpose of the utility model is to overcome the problems existing in the prior art. Aiming at the problems, a rail-supporting spring bar and a spring-bar rail-supporting fastener system are designed. The lateral limiting function of the rail waist is increased by designing the rail-supporting spring bar structure. Under the premise of not increasing the elastic split fastener components, a spring-bar rail-supporting fastener with high lateral stability and low installation and maintenance cost is realized, thereby improving the comfort and safety during train operation and reducing rail corrugation.

[0004] The utility model is realized by the following technical solutions:

[0005] A rail-supporting spring clip comprises a spring clip body, a vertical support portion is arranged at the bottom of the spring clip body, the vertical support portion vertically limits the bottom of the rail, the spring clip body comprises a middle limb of the spring clip and side limbs of the spring clip, the side limbs of the spring clip are symmetrically arranged on both sides of the middle limb of the spring clip, and is characterized in that: the middle limb of the spring clip or the side limbs of the spring clip are bent obliquely upward to form a transverse support portion, and the transverse support portion transversely supports and limits the waist of the rail; the spring clip body is a W-shaped spatial curved beam rod, the spring clip buckling surface of the transverse support portion extends to the waist of the rail, and has an appearance matching the waist of the rail.

[0006] A spring-bar rail-supporting fastener system comprises an insulating coupling pad, a bottom pad and a rail underpad arranged from bottom to top, wherein the rail-supporting spring bar is arranged on the bottom pad at a position corresponding to the outer side of the rail, an insulating module is arranged on the bottom pad at a position corresponding to the rail-supporting spring bar and between the rail, a second spring bar is arranged on the bottom pad at a position corresponding to the inner side of the rail, and a second track gauge block is arranged on the bottom pad at a position corresponding to the second spring bar and between the rail; the second spring bar is one of a fast spring bar and an ω-shaped spring bar; the bottom pad is an iron pad or a preassembled body, the preassembled body is a combined vibration-damping pad, and the composite vibration-damping pad comprises a lower iron pad, a middle rubber pad and an upper iron pad arranged in sequence from bottom to top, and the lower iron pad, the middle rubber pad and the upper iron pad are preassembled into one by pre-tightening bolts.

[0007] In order to further optimize the utility model, the following technical solutions can be preferably used:

[0008] Preferably, the rail-supporting spring clip is a rail-supporting fast spring clip with a middle limb of the spring clip bent obliquely upward, the lateral support portion of the rail-supporting fast spring clip is the front end of the middle limb of the spring clip, the insulating module is a rail-supporting gauge block, the rail-supporting gauge block includes a base, the base is provided with a gauge block buckling surface matching the lateral support portion, the gauge block buckling surface extends to the waist of the rail, and the gauge block buckling surface matches the shape of the waist of the rail.

[0009] Preferably, the rail-supporting elastic strip is a rail-supporting ω-shaped elastic strip A whose middle limb is bent obliquely upward, and the rail-supporting ω-shaped elastic strip A is compressed and fixed by a locking system, and the transverse supporting portion of the rail-supporting ω-shaped elastic strip A is the front end of the middle limb of the elastic strip, and the insulating module is a rail-supporting gauge block, and the rail-supporting gauge block includes a base, and a gauge block buckling surface matching the transverse supporting portion is provided on the base, and the gauge block buckling surface extends to the waist of the rail, and the gauge block buckling surface matches the shape of the waist of the rail.

[0010] Preferably, the rail-supporting elastic bar is a rail-supporting ω-shaped elastic bar B with side limbs bent obliquely upward, the rail-supporting ω-shaped elastic bar B is compressed and fixed by a locking system, the lateral supporting portion of the rail-supporting ω-shaped elastic bar B is the front end of the two side limbs of the elastic bar, the insulating module is a rail-supporting gauge block, the rail-supporting gauge block includes a base, the base is provided with a gauge block buckling surface matching the lateral supporting portion, the gauge block buckling surface extends to the waist of the rail, and the gauge block buckling surface matches the shape of the waist of the rail.

[0011] Preferably, protrusions are provided at positions matching the waist of the rail on both sides of the buckling surface of the rail support gauge block, and the height of the protrusions increases nonlinearly by 0 to 10 mm from bottom to top.

[0012] Preferably, the rail-supporting elastic bar is a rail-supporting ω-shaped elastic bar C with side limbs bent obliquely upward, the rail-supporting ω-shaped elastic bar C is compressed and fixed by a locking system, the lateral supporting portion of the rail-supporting ω-shaped elastic bar C is the front end of the two side limbs of the elastic bar, the insulating module includes a first gauge block and an elastic bar cap, the first gauge block is arranged between the rail-supporting ω-shaped elastic bar C and the rail corresponding to the position of the middle limb of the elastic bar, and the elastic bar cap is mounted on the front end of the two side limbs of the elastic bar.

[0013] Preferably, the front ends of both side limbs of the rail support ω-shaped elastic bar C have slots matching the elastic bar caps.

[0014] The utility model has the following effects:

[0015] 1) This product adopts a single-sided rail support structure design to improve the lateral stability of the fastener. Specifically, a fast spring clip or ω-shaped spring clip + gauge block is used on the inner side of the rail, and one of the rail support fast spring clips, rail support ω-shaped spring clip A, and rail support ω-shaped spring clip B is used on the outer side in combination with the rail support gauge block or rail support ω-shaped spring clip C in combination with the first gauge block to increase the lateral limiting function of the rail waist. Tests have verified that the lateral displacement of the rail head of the elastic split fastener is 1.2 to 1.5 mm in actual application. When the spring bar rail support fastener is used, the lateral displacement of the rail head is 0.7 to 0.9 mm, and the reduction in the lateral displacement of the rail head can reach 0.3 to 0.8 mm.

[0016] 2) The fastener structure of this product is simple and the installation and maintenance costs are low. Specifically, the lateral limiting function of the rail waist is increased by designing the rail support spring bar structure. Under the premise of not increasing the elastic split fastener components, a spring bar rail support fastener with high lateral stability and low installation and maintenance costs is realized. The rail support gauge block used is made of nylon insulating material or other insulating materials with performance not lower than that of the spring bar. The spring bar buckling surface of the rail support gauge block extends to the waist of the rail and has a shape matching the waist of the rail. The buckling surface of the rail support gauge block on both sides of the buckling surface and the matching part of the rail waist have a gradual raised height of 0 to 10 mm, which prevents the rail support spring bar from contacting the rail during the train running, and realizes the insulation function between the rail support spring bar and the rail. The rail support gauge block is a wearing part, which is easy to disassemble and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the spring rail support type fastener system in Example 2;

[0018] Figure 2 It is a structural schematic diagram of the spring rail support type vibration reduction fastener system in Example 2;

[0019] Figure 3 This is a schematic diagram of the structure of the rail support fast spring clip;

[0020] Figure 4 It is a structural schematic diagram of a rail support gauge block;

[0021] Figure 5 It is a structural schematic diagram of the spring rail support type fastener system in Example 3;

[0022] Figure 6 This is a schematic structural diagram of the spring rail support type vibration damping fastener system in Example 3;

[0023] Figure 7 It is a structural schematic diagram of the spring rail support type fastener system in Example 4;

[0024] Figure 8 It is a structural schematic diagram of the spring rail support type vibration reduction fastener system in Example 4;

[0025] Fig. 9 This is a schematic diagram of the structure of the rail support ω-shaped elastic strip A in Example 4;

[0026] Fig.10 It is a structural schematic diagram of the spring rail support type fastener system in Example 5;

[0027] Fig.11 It is a structural schematic diagram of the spring rail support type vibration reduction fastener system in Example 5;

[0028] Fig.12 This is a schematic diagram of the structure of the rail support ω-shaped elastic bar B in Example 5;

[0029] Fig.13 This is a schematic structural diagram of the bullet-bar rail support type fastener system in Example 6;

[0030] Fig.14 This is a schematic structural diagram of the bullet-bar rail support type vibration-damping fastener system in Example 6;

[0031] Fig.15 Schematic diagram of the structure of the rail support ω-shaped spring bar C (including the spring bar cap) in Example 6;

[0032] Fig.16 Schematic diagram of the structure of the rail support ω-shaped spring bar C (excluding the spring bar cap) in Example 6;

[0033] Wherein: 1-rail, 2-insulating coupling pad, 3-bottom pad, 4-rail pad, 5-pretensioning system, 6-bolt sleeve, 7-cover plate, 8-anchor bolt, 9-fast spring clip, 10-ω-shaped spring clip, 11-rail support gauge block, 12-second gauge block, 13-rail support fast spring clip, 14-rail support ω-shaped spring clip A, 15-rail support ω-shaped spring clip B, 16-rail support ω-shaped spring clip C, 17-locking system;

[0034] 101- middle limb of the spring bar, 102- front end of the middle limb of the spring bar, 103- side limb of the spring bar, 104- front end of the side limb of the spring bar, 105- vertical support part, 106- transverse support part, 107- spring bar cap, 108- slot;

[0035] 201-base, 202-gauge block buckling surface, 203-protrusion;

[0036] 301-upper iron pad, 302-middle rubber pad, 303-lower iron pad. DETAILED DESCRIPTION

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Embodiment 1:

[0040] like Figures 1 to 16As shown, a rail-supporting spring bar comprises a spring bar body, a vertical support portion 105 is arranged at the bottom of the spring bar body, and the vertical support portion vertically limits the bottom of the rail, the spring bar body comprises a spring bar middle limb 101 and a spring bar side limb 103, the spring bar side limbs are symmetrically arranged on both sides of the spring bar middle limb, the spring bar middle limb or the spring bar side limb is bent obliquely upward to form a transverse support portion 106, and the transverse support portion performs transverse support and position limiting on the waist of the rail, wherein the spring bar body is a W-shaped space curved beam rod, the spring bar buckling surface of the transverse support portion extends to the waist of the rail, and has an appearance matching the waist of the rail, and specific rail-supporting spring bar forms include rail-supporting fast spring bars 13, rail-supporting ω-shaped spring bars A 14. There are four types of rail support ω-shaped spring clips B15 and rail support ω-shaped spring clips C16, among which: ① The length of the middle limb of the rail support fast spring clip is greater than the length of the side limb of the spring clip, and the middle limb of the spring clip is bent and extended obliquely upward along the outer shape design of the rail waist, and a slot is provided at the front end 104 of the side limb of the spring clip, and the front end 102 of the middle limb of the spring clip has an outer shape matching the rail support gauge block, thereby increasing the lateral limiting function of the rail waist; ② The middle limb of the rail support ω-shaped spring clip A is bent and extended obliquely upward along the outer shape design of the rail waist, wherein the length of the middle limb of the spring clip is greater than the length of the side limb of the spring clip, and the front ends of the two side limbs of the spring clip are bent inward. , forming a vertical support portion 105; ③ The two elastic bar side limbs of the rail support ω-shaped elastic bar B are bent and extended obliquely upward along the outer shape design of the rail waist, the length of the two elastic bar side limbs is greater than the length of the middle limb of the elastic bar, the front ends 104 of the two elastic bar side limbs are bent inward, and the spacing between the two elastic bar side limbs exceeding the middle limb of the elastic bar becomes smaller to match the rail support gauge block; ④ The two elastic bar side limbs of the rail support ω-shaped elastic bar C are bent and extended obliquely upward along the outer shape design of the rail waist, the front ends of the two elastic bar side limbs are bent inward, the length of the elastic bar side limbs is greater than the length of the middle limb of the elastic bar, and the front ends of the two elastic bar side limbs are equipped with elastic bar caps.

[0041] A spring-bar rail-supporting fastener system comprises an insulating coupling pad 2, a bottom pad 3 and a rail underpad 4 installed from bottom to top, wherein the bottom pad 3 is an iron pad, a rail-supporting spring bar is installed on the bottom pad at a position corresponding to the outer side of a rail 1, an insulating module is installed on the bottom pad at a position corresponding to the rail-supporting spring bar and between the rail, a second spring bar is installed on the bottom pad at a position corresponding to the inner side of the rail, and a second gauge block 12 is installed on the bottom pad at a position corresponding to the second spring bar and between the rail; wherein the second spring bar is one of a fast spring bar 9 and an ω-shaped spring bar 10. In order to improve the vibration reduction effect, it is designed as: a spring rail support type vibration reduction fastener system, wherein the bottom pad 3 can be designed as a preassembled body, the preassembled body is a combined vibration reduction pad, the combined vibration reduction pad includes a lower iron pad 303, a middle rubber pad 302, and an upper iron pad 301 installed from bottom to top, wherein the lower iron pad, the middle rubber pad, and the upper iron pad are pre-assembled into one by a pre-tightening system, and the overall fastener is fixed to the sleeper by anchor bolts 8, bolt sleeves 6, and cover plates 7.

[0042] According to the different shapes of the rail support spring bars, the insulating module has two forms. The first insulating module form: the insulating module is a rail support gauge block 11, the rail support gauge block 11 includes a base 201, and a gauge block buckling surface 202 matching the lateral support portion is provided on the base, the gauge block buckling surface extends to the rail waist position, and the gauge block buckling surface matches the shape of the rail waist; protrusions 203 are provided on both sides of the gauge block buckling surface at positions matching the rail waist, and the height of the protrusion 203 increases nonlinearly from bottom to top by 0 to 10 mm. The second insulating module form: the insulating module includes a first gauge block and a spring bar cap, the first gauge block is installed between the rail support ω-shaped spring bar C and the rail at the position corresponding to the middle limb of the spring bar, the spring bar cap 107 is mounted on the front end of the side limb of the spring bar, and the front ends of the two side limbs of the rail support ω-shaped spring bar C have a card slot 108 matching the spring bar cap.

[0043] The following is an introduction to several specific implementation methods of rail-supported spring clips, ω-shaped spring clips, and fast spring clips applied to spring-clip rail-supported fastener systems:

[0044] Embodiment 2:

[0045] 1) The spring rail support fastener is mainly composed of iron pads, rail pads, cover plates, insulating coupling pads, rail support fast spring bars, fast spring bars, rail support gauge blocks, gauge blocks, anchor bolts, bolt sleeves and other parts.

[0046] 2) The spring-clip rail support type vibration-damping fastener is mainly composed of an upper iron pad, a lower iron pad, a middle rubber pad, a rail bottom pad, a cover plate, an insulating coupling pad, a preload system, a rail support fast spring clip, a fast spring clip, a rail support gauge block, a gauge block, an anchor bolt, a bolt sleeve and other components.

[0047] 3) The rail support fast spring clip is matched with the rail support gauge block and placed on the outside of the rail. The inside of the rail adopts the fast spring clip + gauge block. The front end of the middle limb of the rail support fast spring clip has a shape that matches the rail support gauge block, which increases the lateral limit function of the rail waist. The rail support gauge block is between the rail support fast spring clip and the rail, realizing the insulation function between the rail support fast spring clip and the rail.

[0048] Embodiment 3:

[0049] 1) The spring rail support fastener is mainly composed of iron pads, rail pads, cover plates, insulating coupling pads, rail support fast spring bars, ω-shaped spring bars, locking systems, rail support gauge blocks, gauge blocks, anchor bolts, bolt sleeves and other parts.

[0050] 2) The spring-bar rail support type vibration-damping fastener is mainly composed of an upper iron pad, a lower iron pad, a middle rubber pad, a rail pad, a cover plate, an insulating coupling pad, a preload system, a rail support fast spring bar, an ω-shaped spring bar, a locking system, a rail support gauge block, a gauge block, an anchor bolt, a bolt sleeve and other components.

[0051] 3) The rail support fast spring clip is matched with the rail support gauge block and placed on the outside of the rail. The inner side of the rail adopts ω-shaped spring clip + gauge block. The front end of the middle limb of the rail support fast spring clip has a shape that matches the rail support gauge block, which increases the lateral limit function of the rail waist. The rail support gauge block is between the rail support fast spring clip and the rail, realizing the insulation function between the rail support fast spring clip and the rail.

[0052] Embodiment 4:

[0053] 1) The spring rail support fastener is mainly composed of iron pads, rail pads, cover plates, insulating coupling pads, rail support ω-shaped spring bars A, ω-shaped spring bars, locking systems, rail support gauge blocks, gauge blocks, anchor bolts, bolt sleeves and other parts.

[0054] 2) The spring-bar rail support type vibration-damping fastener is mainly composed of an upper iron pad, a lower iron pad, a middle rubber pad, a rail bottom pad, a cover plate, an insulating coupling pad, a preload system, a rail support ω-shaped spring bar A, an ω-shaped spring bar, a locking system, a rail support gauge block, a gauge block, an anchor bolt, a bolt sleeve and other components.

[0055] 3) The rail support ω-shaped spring bar A is matched with the rail support gauge block and placed on the outside of the rail. The inner side of the rail adopts ω-shaped spring bar + gauge block. The front ends of the two side limbs of the rail support ω-shaped spring bar A are vertically buckled to the rail support gauge block. The front end of the middle limb of the rail support ω-shaped spring bar A has a shape that matches the rail support gauge block, which can be buckled horizontally to increase the lateral limit function of the rail waist. The rail support gauge block is between the rail support ω-shaped spring bar A and the rail, realizing the insulation function between the rail support ω-shaped spring bar A and the rail.

[0056] Embodiment 5:

[0057] 1) The spring rail support fastener is mainly composed of iron pads, rail pads, cover plates, insulating coupling pads, rail support ω-shaped spring bars B, ω-shaped spring bars, locking systems, rail support gauge blocks, gauge blocks, anchor bolts, bolt sleeves and other parts.

[0058] 2) The spring-bar rail support type vibration-damping fastener is mainly composed of an upper iron pad, a lower iron pad, a middle rubber pad, a rail pad, a cover plate, an insulating coupling pad, a preload system, a rail support ω-shaped spring bar B, an ω-shaped spring bar, a locking system, a rail support gauge block, a gauge block, an anchor bolt, a bolt sleeve and other components.

[0059] 3) Rail support ω-shaped spring bar B is matched with rail support gauge block and placed on the outside of the rail. ω-shaped spring bar + gauge block is used on the inside of the rail. The front end of the middle limb of the rail support ω-shaped spring bar B and the middle of the two side limbs are vertically buckled to the rail support gauge block. The front end of the two side limbs of the rail support ω-shaped spring bar B has a shape that matches the rail support gauge block, and can be buckled horizontally to increase the lateral limit function of the rail waist. The rail support gauge block is between the rail support ω-shaped spring bar B and the rail to achieve the insulation function between the rail support ω-shaped spring bar B and the rail.

[0060] In embodiments 2 to 5, rail support gauge blocks are used to perform insulation treatment between rail support fasteners and rails. The rail support gauge blocks are made of nylon insulating materials or other insulating materials with performance not lower than nylon insulating materials. The spring bar buckling surface of the rail support gauge block extends to the waist of the rail and has a shape matching the waist of the rail. The buckling surface of the rail support gauge block has a gradually raised height of 0 to 10 mm at the matching part of the waist of the rail, which prevents the rail support spring bar from contacting the rail during the running of the train, and realizes the insulation function between the rail support spring bar and the rail. The rail support gauge block is a consumable part, which is easy to disassemble and replace.

[0061] Embodiment 6: This embodiment is different from Embodiments 2 to 5 in that a spring bar cap + gauge block is used to replace the above-mentioned rail support gauge block design.

[0062] 1) The spring rail support fastener is mainly composed of iron pads, rail pads, cover plates, insulating coupling pads, rail support ω-shaped spring bars C, spring bar caps, ω-shaped spring bars, locking systems, gauge blocks, anchor bolts, bolt sleeves and other parts.

[0063] 2) The spring-bar rail support type vibration-damping fastener is mainly composed of an upper iron pad, a lower iron pad, a middle rubber pad, a rail pad, a cover plate, an insulating coupling pad, a preload system, a rail support ω-shaped spring bar C, a spring bar cap, an ω-shaped spring bar, a locking system, a gauge block, an anchor bolt, a bolt sleeve and other components.

[0064] 3) The rail support ω-shaped spring bar C is matched with the gauge block. The front end of the middle limb of the rail support ω-shaped spring bar C is vertically buckled with the gauge block. The front ends of the two side limbs of the rail support ω-shaped spring bar C are equipped with matching spring bar caps and have a shape matching the waist of the rail. It can provide lateral support force to the outer waist of the rail and increase the lateral limiting function of the waist of the rail. The gauge block and the spring bar cap are used to achieve insulation effect between the rail support ω-shaped spring bar C and the rail.

[0065] The front ends of both side limbs of the rail support ω-shaped spring bar C are provided with slots matching the spring bar caps, so that the spring bar caps have an anti-retraction function.

[0066] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rail-supporting spring clip, comprising a spring clip body, a vertical support portion is provided at the bottom of the spring clip body, the vertical support portion vertically limits the bottom of the rail, the spring clip body comprises a spring clip middle limb and a spring clip side limb, the spring clip side limbs are symmetrically arranged on both sides of the spring clip middle limb, characterized in that: The middle limb or the side limb of the spring bar is bent obliquely upward to form a transverse support portion, and the transverse support portion performs transverse support and positioning on the waist of the rail; the spring bar body is a W-shaped spatial curved beam rod, and the spring bar buckling surface of the transverse support portion extends to the waist of the rail, and has an appearance matching the waist of the rail.

2. A spring rail fastener system, characterized in that: It comprises an insulating coupling pad, a bottom pad and a rail underpad arranged from bottom to top, wherein the bottom pad is provided with a rail-supporting spring bar as claimed in claim 1 at a position corresponding to the outer side of the rail, an insulating module is arranged at a position between the bottom pad and the rail corresponding to the rail-supporting spring bar, a second spring bar is arranged at a position corresponding to the inner side of the rail, and a second gauge block is arranged at a position between the bottom pad and the rail corresponding to the second spring bar; the second spring bar is one of a fast spring bar and an ω-shaped spring bar; the bottom pad is an iron pad or a preassembled body, the preassembled body is a combined vibration-damping pad, the combined vibration-damping pad comprises a lower iron pad, a middle rubber pad and an upper iron pad arranged in sequence from bottom to top, and the lower iron pad, the middle rubber pad and the upper iron pad are preassembled into one through a pre-tightening system.

3. The spring rail fastener system according to claim 2, characterized in that: The rail-supporting spring clip is a rail-supporting fast spring clip whose middle limb is bent obliquely upward, the transverse supporting portion of the rail-supporting fast spring clip is the front end of the middle limb of the spring clip, the insulating module is a rail-supporting gauge block, the rail-supporting gauge block includes a base, the base is provided with a gauge block buckling surface matching the transverse supporting portion, the gauge block buckling surface extends to the waist of the rail, and the gauge block buckling surface matches the shape of the waist of the rail.

4. The spring rail fastener system according to claim 2, characterized in that: The rail-supporting spring bar is a rail-supporting ω-shaped spring bar A whose middle limb is bent obliquely upward, and the rail-supporting ω-shaped spring bar A is compressed and fixed by a locking system, and the transverse supporting portion of the rail-supporting ω-shaped spring bar A is the front end of the middle limb of the spring bar, and the insulating module is a rail-supporting gauge block, and the rail-supporting gauge block includes a base, and a gauge block buckling surface matching the transverse supporting portion is provided on the base, and the gauge block buckling surface extends to the waist of the rail, and the gauge block buckling surface matches the shape of the waist of the rail.

5. The spring rail fastener system according to claim 2, characterized in that: The rail-supporting spring bar is a rail-supporting ω-shaped spring bar B whose side limbs are bent obliquely upward, and the rail-supporting ω-shaped spring bar B is compressed and fixed by a locking system, and the transverse supporting portion of the rail-supporting ω-shaped spring bar B is the front end of the two side limbs of the spring bar, and the insulating module is a rail-supporting gauge block, and the rail-supporting gauge block includes a base, and a gauge block buckling surface matching the transverse supporting portion is provided on the base, and the gauge block buckling surface extends to the waist of the rail, and the gauge block buckling surface matches the shape of the waist of the rail.

6. A spring rail fastener system according to any one of claims 3 to 5, characterized in that: Protrusions are arranged at the positions matching the rail waist on both sides of the buckling surface of the rail support gauge block, and the height of the protrusions increases nonlinearly from bottom to top by 0 to 10 mm.

7. The spring rail fastener system according to claim 2, characterized in that: The rail-supporting spring bar is a rail-supporting ω-shaped spring bar C with side limbs of the spring bar bent obliquely upward. The rail-supporting ω-shaped spring bar C is compressed and fixed by a locking system. The lateral supporting portion of the rail-supporting ω-shaped spring bar C is the front end of the two side limbs of the spring bar. The insulating module includes a first gauge block and a spring bar cap. The first gauge block is arranged between the rail-supporting ω-shaped spring bar C and the rail corresponding to the position of the middle limb of the spring bar, and the spring bar cap is mounted on the front end of the two side limbs of the spring bar.

8. The spring rail fastener system according to claim 7, characterized in that: The front ends of both side limbs of the rail support ω-shaped spring bar C are provided with slots matching with the spring bar caps.

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