CN216378949U

CN216378949U - Self-tightening spike anti-loosening device for high-speed railway fastener

Info

Publication number: CN216378949U
Application number: CN202121843704.7U
Authority: CN
Inventors: 李政冀; 马奎
Original assignee: Zhejiang Zijinwang Technology Co ltd
Current assignee: Zhejiang Zijinwang Technology Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-04-26
Anticipated expiration: 2031-08-09

Abstract

The utility model provides a self-tightening spike anti-loosening device of a high-speed railway fastener, which comprises a high-speed rail with edges at two sides, wherein a lower base plate is arranged on the bottom surface of the high-speed rail, a rail sleeper frame is arranged at the bottom of the lower base plate, expansion pipes penetrating through the lower base plate are embedded at the left side and the right side of the rail sleeper frame, a self-tightening spike for locking the high-speed rail at the top of the rail sleeper frame after being expanded is arranged in each expansion pipe, a self-tightening gasket positioned at the bottom of a top end bolt cap is sleeved on each self-tightening spike, inclined planes of stepped notch grooves are arranged at multiple areas of the top surface of each self-tightening gasket, the bottom of the bolt cap of each self-tightening spike is also provided with the self-tightening gasket, the top of each self-tightening gasket is provided with the stepped notch groove, so that the stepped notch grooves at the top of each self-tightening spike can replace anti-skid textures on a gasket in the prior art when the self-tightening spike is locked, the stepped notch groove is not easy to wear, and compared with a gasket, the self-tightening gasket has longer service life.

Description

Self-tightening spike anti-loosening device for high-speed railway fastener

Technical Field

The utility model relates to the technical field of rail anti-loosening, in particular to a self-tightening spike anti-loosening device for a fastener of a high-speed railway.

Background

In the process of laying a steel rail of a high-speed railway, nylon sleeves need to be preset on sleepers on two sides of a steel rail laying position, and an installation cavity of a gauge baffle needs to be arranged on the sleepers in actual installation, so that the installation of the steel rail is time-consuming and labor-consuming, and the installation efficiency is low, on the basis of the problems, the Chinese patent No. 201810902274.8 provides a high-speed railway fastener system which comprises the steel rail and the nylon sleeves, wherein the nylon sleeves are pre-embedded in the sleepers on two sides of the steel rail, the upper end surfaces of the sleepers are concave to form rail bearing surfaces, guide inclined surfaces which are closed from top to bottom towards the center are arranged on two sides of the width direction of the rail bearing surfaces, although the tops of anti-loosening gaskets adopted in the patent are provided with anti-skidding textures, in the anti-loosening process, the anti-skidding textures are shallow, so that the anti-rotation effect of the spiral rail nails is poor and the spiral rail nails are easy to wear, and the elastic strips adopted are single in structure, although the anti-loosening effect can be achieved for the spiral track nails, the elastic strips of the track are required to perform high-frequency buffering action for achieving the anti-loosening effect due to frequent vibration caused by continuous fatigue use of the track, and the service life of the track is short.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a self-tightening spike anti-loosening device for a high-speed railway fastener, which can prolong the service life of the self-tightening spike anti-loosening device and improve the anti-loosening effect.

The utility model has the technical scheme that the self-tightening spike anti-loosening device of the high-speed railway fastener comprises a high-speed rail with edges at two sides, wherein a lower backing plate is arranged on the bottom surface of the high-speed rail, a rail sleeper frame is arranged at the bottom of the lower backing plate, expansion pipes penetrating through the lower backing plate are embedded at the left side and the right side of the rail sleeper frame, a self-tightening spike for locking the high-speed rail at the top of the rail sleeper frame after being expanded is arranged in each expansion pipe, a self-tightening gasket positioned at the bottom of a top bolt cap of the self-tightening spike is sleeved on each self-tightening spike, inclined surfaces of stepped notch grooves are arranged at multiple regions of the top surface of each self-tightening gasket, the inclined surfaces at the top of each self-tightening gasket are contacted with the bottom of the bolt cap of each self-tightening spike, a square gasket sleeved on each self-tightening spike is arranged at the bottom of each self-tightening gasket, a spring strip sleeved on each self-tightening spike is arranged at the bottom of each square gasket, the spring rod is characterized in that a left plane and a right plane are formed in the top surface of the elastic strip, blind holes are formed downwards through the planes, an upward bent spring rod is arranged between the two blind holes, downward bent flanges used for holding the elastic strip tightly are arranged at the two ends of the square gasket, and the spring rod is located at the bottom of the square gasket.

Preferably, a gauge pad is arranged on the top surface of the rail sleeper frame and is positioned at the bottom of the elastic strip.

Preferably, the self-tightening spike penetrates through the self-tightening gasket, the square gasket, the elastic strip, the edge, the gauge backing plate and the lower backing plate in sequence.

Preferably, the elastic strip further comprises an upward warping portion in the middle and downward warping portions located on two sides of the upward warping portion, and the square gasket is held on the upward warping portion through the flanging and is extruded to the top of the spring rod.

As preferred, the gauge backing plate includes the catching groove that the opening faces up, be close to in excessive groove in the border outside, keep away from in the outer indent in the border outside, the contact is in binding face on the iron sleeper frame top surface, and be located spacing arch is gone up in two on the outer indent outer end top surface, leaves the notch structure between the spacing arch in two, by upward spacing bellied inner face inwards has seted up the filling hole, the portion of upwarping on the bullet strip process excessive groove enters into in the catching groove, and the warp go up the protruding spacing back of spacing and move towards in outer indent, upwarping portion with the interior end contact of portion of upwarping down is in on the top surface of border.

Compared with the prior art, the utility model has the advantages that the square gasket is utilized to replace the gasket with anti-skid textures on the basis of the prior art, the flanging structures at the two sides of the square gasket can be locked with the elastic strip, so that the elastic strip is firmer, and the elastic strip is provided with the spring rod corresponding to the bottom of the square gasket, so that when the square gasket locks the elastic strip, the elastic strip can play an anti-skid effect on each anti-skid component such as the self-tightening spike and the like by the aid of the upward bending anti-deformation capacity of the spring rod, and the arrangement of the spring rod can bear part of buffer force from the elastic strip, so that the fatigue strength of the elastic strip can be reduced, the service life of the self-tightening spike is prolonged, the bottom of the bolt cap of the self-tightening spike is also provided with the self-tightening gasket, the top of the self-tightening gasket is provided with the stepped notch groove, so that the stepped notch groove at the top of the self-tightening spike locks the self-tightening spike replaces the anti-skid textures on the gasket in the prior art, the stepped notch groove is not easy to wear, and compared with a gasket, the self-tightening gasket has longer service life.

Drawings

FIG. 1 is a schematic top plan view of the present invention in use;

FIG. 2 is a schematic view of the present invention taken along section A of FIG. 1;

FIG. 3 is a schematic structural view of a front plane of the present invention in a use state;

FIG. 4 is a schematic view of the locking elements of the present invention shown disassembled from the high speed rail and the sleeper frame and assembled;

FIG. 5 is a schematic view of a high speed rail according to the present invention;

FIG. 6 is a schematic view of the construction of only the gage pad of FIG. 4 in accordance with the present invention;

FIG. 7 is a schematic view of the self-tightening gasket alone derived from FIG. 4 in accordance with the present invention;

fig. 8 is a schematic view of the disassembled structure of the elastic strip only from fig. 4.

In the figure: 1. a high speed rail; 101. an edge; 2. an expansion tube; 3. a lower base plate; 4. a spring bar; 41. a raised part; 42. a lower warping part; 43. blind holes; 44. a spring lever; 5. a gauge backing plate; 51. buckling grooves; 52. a transition groove; 53. an external pressure groove; 54. a binding face; 55. an upper limiting bulge; 551. a notch structure; 552. filling the hole; 6. A rail pillow frame; 7. A self-tightening gasket; 8. a square gasket; 81. flanging; 9. self-tightening spikes.

Detailed Description

The technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed in a specific direction and operation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 8, the self-tightening spike anti-loosening device for a high-speed railway fastener provided by the present embodiment includes a high-speed rail 1 having edges 101 at both sides, a lower pad plate 3 is disposed on a bottom surface of the high-speed rail 1, a rail pillow frame 6 is disposed at a bottom of the lower pad plate 3, expansion pipes 2 penetrating through the lower pad plate 3 are inlaid at left and right sides of the rail pillow frame 6, a self-tightening spike 9 is disposed in the expansion pipes 2 to enable the expansion pipes to lock the high-speed rail 1 at a top of the rail pillow frame 6 after expansion, a self-tightening gasket 7 disposed at a top of the self-tightening spike 9 is sleeved on the self-tightening spike 9, a plurality of regions of a top surface of the self-tightening gasket 7 are provided with inclined surfaces having stepped notch grooves, the inclined surfaces at a top of the self-tightening gasket 7 are in contact with a bottom of the cap of the self-tightening spike 9, a square gasket 8 disposed at a bottom of the self-tightening gasket 7 is provided with a spring strip 4 disposed on the self-tightening spike 9, two planes about the top surface of bullet strip 4 is seted up, has seted up blind hole 43 by the plane downwards, is equipped with the kickup spring lever 44 of kickup between two blind holes 43, and the both ends of square gasket 8 are equipped with the turn-ups 81 of kickdown just being used for holding bullet strip 4 tightly, and spring lever 44 is located the bottom of square gasket 8.

In the embodiment, after the self-tightening spike 9 is locked into the expansion pipe 2, the expansion pipe 2 is expanded, then the self-tightening spike 9 is locked, the self-tightening gasket 7, the square gasket 8, the elastic strip 4 and the gauge pad 5 at the bottom of the elastic strip 4 for locking the high-speed rail 1 on the rail sleeper frame 6 are locked at the top of the edges 101 at two sides of the high-speed rail 1 by the locked self-tightening spike 9, the self-tightening gasket 7 is locked by the way that the top bolt cap of the self-tightening spike 9 extrudes the self-tightening gasket 7, the square gasket 8 is locked by the extrusion action of the self-tightening gasket 7 on the square gasket 8, the elastic strip 4 is bent downwards by the extrusion action of the square gasket 8 on the elastic strip 4 and generates the anti-loosening effect, finally, the bottom end of the self-tightening spike 9 penetrates through the lower bolster 3 at the bottom of the high-speed rail 1 and is locked on the rail sleeper frame 6, and the top surface of the self-tightening gasket 7 is provided with the inclined surface with the stepped notch groove in the locking process, and the inclined plane is located at the bottom of the bolt cap of the self-tightening spike 9, so the self-tightening spike 9 is pressed on the inclined plane at the top end of the self-tightening gasket 7 by the bolt cap when being locked downwards, the inclined plane of the stepped notch at the top of the self-tightening gasket 7 is equivalent to the top anti-skid texture of the anti-skid gasket in the prior art, the depth dimension of the stepped notch is larger and the stepped notch is of an inclined structure, so the anti-skid effect of the anti-skid texture is better than that of the anti-skid texture, meanwhile, the wear is not easy, the square gasket 8 is also equivalent to the anti-skid gasket in the prior art, the elastic strip 4 at the bottom of the square gasket 8 is provided with the blind hole 43 and the arc spring rod 44 is inserted in the blind hole 43, when the square gasket 8 extrudes the elastic strip 4, the arc spring rod 44 utilizes the elastic characteristic to assist the elastic strip 4 to play a dual anti-skid effect to the whole anti-skid structure, thereby the fatigue strength of the elastic strip 4 can be improved, thereby improving the service life thereof.

Specifically, the elastic strip 4 further comprises an upward warping portion 41 at the middle part and downward warping portions 42 located on two sides of the upward warping portion 41, the square gasket 8 is tightly held on the upward warping portion 41 through the turned edge 81 and is extruded at the top of the spring rod 44, the square gasket 8 completely plays a role in locking the elastic strip 4 by the anti-loose gasket in the comparison file, and on the basis, the square gasket 8 is not only in simple contact with the elastic strip 4, but also in contact with the elastic strip 4 through the arc-shaped spring rod 44 inserted between the two blind holes 43, so that when the square gasket 8 extrudes the elastic strip 4, the elastic anti-loose characteristic of the elastic strip 4 is played to the utmost extent by utilizing the arc-shaped spring rod 44, and the elastic anti-loose characteristic is superior to the prior art.

Specifically, the gauge backing plate 5 includes a fastening groove 51 with an upward opening, an excessive groove 52 adjacent to the outer side of the rim 101, an external pressing groove 53 far from the outer side of the rim 101, an attaching surface 54 contacting the top surface of the rail pillow frame 6, and two upper limiting protrusions 55 located on the top surface of the outer end of the external pressing groove 53, a notch structure 551 is left between the two upper limiting protrusions 55, a filling hole 552 is formed inward from the inner surface of the upper limiting protrusion 55, the upturned portion 41 on the elastic strip 4 enters the fastening groove 51 through the excessive groove 52, and moves to the external pressing groove 53 after being limited by the upper limiting protrusion 55, the inner ends of the upturned portion 41 and the downturned portion 42 contact the top surface of the rim 101, obviously, when the elastic strip 4 contacts the gauge backing plate 5, the elastic strip 4 is more firmly mounted by using the above external pressing groove 53, excessive groove 52 and fastening groove 51, and the structure of the upturned portion 41 and the downturned portion 42 makes it have the anti-loose effect, after the railway is assembled, finally, the notch structure 551 for placing the sand of the rail sleeper frame 6 and the filling hole 552 can be used for extruding the peripheral area of the elastic strip 4, so that the elastic strip 4 is further fixed on the anti-loose structure, and the structural design is ingenious.

The above-described embodiments of the present invention will further explain the objects, aspects, and advantages of the present invention in detail. It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the utility model, may occur to those skilled in the art and are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a high speed railway fastener is from tight spike locking device, its characterized in that has high speed rail (1) at border (101) including both sides, be equipped with lower bolster (3) on the bottom surface of high speed rail (1), the bottom of lower bolster (3) is equipped with rail pillow frame (6), the left and right sides of rail pillow frame (6) is inlayed and is run through expansion pipe (2) of lower bolster (3), be equipped with in expansion pipe (2) and make its inflation after will high speed rail (1) lock in self-tight spike (9) at rail pillow frame (6) top, the cover is equipped with self-tightening gasket (7) that are located its top end bolt cap bottom on self-tightening spike (9), the inclined plane of cascaded breach groove is seted up in the multizone department of the top surface of self-tightening gasket (7), the top contact of self-tightening gasket (7) is in the self-tightening bolt cap bottom of self-tightening spike (9), from the bottom of tight gasket (7) be equipped with the cover and establish square gasket (8) on tight spike (9), the bottom of square gasket (8) is equipped with the cover and establishes bullet strip (4) on tight spike (9), two planes about the top surface of bullet strip (4) has been seted up, have seted up blind hole (43) by the plane downwards, are equipped with between two blind holes (43) upswept spring bar (44), the both ends of square gasket (8) are equipped with downwarping and are used for with turn-ups (81) that bullet strip (4) were held tightly, spring bar (44) are located the bottom of square gasket (8).

2. A self-clinching spike retainer for a high speed railway fastener as claimed in claim 1, in which the top face of the tie frame (6) is provided with a gauge pad (5) at the bottom of the spring bar (4).

3. The self-tightening spike anti-loosening device of the high-speed railway fastener according to claim 1, wherein the self-tightening spike (9) penetrates through the self-tightening gasket (7), the square gasket (8), the elastic strip (4), the edge (101), the gauge pad (5) and the lower pad (3) in sequence from bottom to top.

4. The self-tightening spike anti-loosening device for the high-speed railway fastener according to claim 3, wherein the elastic strip (4) further comprises an upturned portion (41) in the middle and downturned portions (42) on two sides of the upturned portion (41), and the square gasket (8) is held on the upturned portion (41) through a flange (81) and is extruded on the top of the spring rod (44).

5. The self-clinching spike locking device of a high speed railway fastener as claimed in claim 4, wherein the gage plate (5) includes a groove (51) with an upward opening, a transition groove (52) adjacent to the outer side of the rim (101), an outer indent (53) away from the outer side of the rim (101), an abutting surface (54) contacting the top surface of the tie frame (6), and two upper limit protrusions (55) on the top surface of the outer end of the outer indent (53), a notch structure (551) is left between the two upper limit protrusions (55), a filling hole (552) is opened inward from the inner surface of the upper limit protrusion (55), the raised portion (41) on the spring strip (4) passes through the transition groove (52) into the groove (51) and is stopped by the upper limit protrusions (55) and then passes through the outer indent (53), the inner ends of the upturned portion (41) and the downturned portion (42) are in contact on the top surface of the rim (101).