CN214694917U - Stable in structure's double-deck damping fastener - Google Patents

Abstract

The utility model provides a stable in structure's double-deck damping fastener, the damping fastener includes rail underboarding, last iron tie plate, middle damping pad and lower iron tie plate, it forms through bottom plate adapter sleeve auto-lock to go up iron tie plate, middle damping pad and lower iron tie plate, sets up the roll adjustment apron on the bottom plate adapter sleeve roll adjustment apron and/or set up limit structure on the bottom plate adapter sleeve. Compared with the prior art, the double-layer damping fastener with the stable structure has the advantages that the rotation of the connecting sleeve of the bottom plate is limited by the arrangement of the limiting structure, and the connecting sleeve of the bottom plate is prevented from being reversed, so that the stability of the structure of the fastener is improved; in addition, the arrangement of the limiting structure does not influence the distance adjusting function of the distance adjusting cover plate, so that the stability of the fastener structure is further improved; thereby improving the stability, the comfort and the safety of the train running.

Description

Stable in structure's double-deck damping fastener

Technical Field

The utility model relates to a rail transit technical field particularly, relates to a stable in structure's double-deck damping fastener.

Background

In order to greatly meet and facilitate the travel demands of people, rail transit has been developed rapidly and rapidly in recent years, and the rail transit has the advantages of rapidness, safety and large transportation capacity, brings great convenience to life of people, and has the problem of vibration and noise. The use of vibration damping fasteners on rails is an effective means of damping ambient vibrations.

The most common medium damping fastener product in the urban rail transit field is a double-layer damping fastener, belonging to the damping type. The upper locking type double-layer nonlinear damping fastener is the most commonly used medium damping fastener in the field of rail market, as shown in fig. 1, and the main components of the fastener include: the device comprises an upper iron base plate 3, a lower iron base plate 5, a middle damping pad 4, a bottom plate connecting sleeve 12, a coupling base plate 6, a distance adjusting cover plate 11 and the like. The main structure of the damping device is rotationally locked by a self-locking structure to assemble the upper iron base plate, the lower iron base plate and the middle damping unit into a whole. The double-layer nonlinear vibration-damping fastener adopts two layers of elastic substrates, namely a double-layer nonlinear high-torsion-resistance rubber base plate, the rubber elastic base plate has the nonlinear characteristics of low load, low rigidity and high load and rigidity, the rubber base plate starts to work from no load without being influenced by the fastening force of bolts, the elasticity of rubber is fully utilized, low dynamic rigidity can be obtained to the maximum extent, and the double-layer nonlinear vibration-damping fastener has good vibration-damping and noise-reducing effects.

The double-deck damping fastener receives the effect of wheel rail power at the during operation, vertical displacement, lateral displacement and torsion take place for the rail, at this moment, go up the iron tie plate and receive the lateral thrust of rail, because the problem of casting and injection moulding processing technology, go up iron tie plate and down and self-locking structure's clearance fit can't accomplish to paste closely completely, to staggered damping fastener in addition, the rail bearing groove receives the lateral force of rail and is eccentric force, the iron tie plate will take place to rotate as the center at the anchor bolt that the rail outside was used to the horizontal direction when the loading. At the moment, the upper iron base plate drives the self-locking structure to rotate together, the self-locking structure breaks away from the original position all year round, the problem of inversion occurs, the self-locking function of the fastener is reduced or lost, and in addition, the risk of interference between the distance-adjusting cover plate and the self-locking structure exists.

Therefore, the problem that the limitation of the self-locking structure is realized by providing the double-layer vibration-damping fastener with a stable structure is needed to be solved in the field of fasteners at present.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a stable in structure's double-deck damping fastener to solve among the prior art auto-lock structure and break away from the primary importance, take place to reverse the problem, reduce or lost the problem to the self-locking function of fastener.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a stable in structure's double-deck damping fastener, the damping fastener includes rail underboarding, last indisputable backing plate, middle damping pad and indisputable backing plate down, go up indisputable backing plate, middle damping pad and indisputable backing plate down and pass through the bottom plate adapter sleeve auto-lock and form, set up the roll adjustment apron on the bottom plate adapter sleeve the roll adjustment apron and/or set up limit structure on the bottom plate adapter sleeve. The arrangement of the limiting structure limits the rotation of the connecting sleeve of the bottom plate and prevents the connecting sleeve of the bottom plate from being reversed, thereby improving the stability of the fastener structure; in addition, limit structure's setting does not influence the roll adjustment function of roll adjustment apron, has further promoted fastener structure's stability to promote stability, travelling comfort and the security of train.

Furthermore, limit structure includes spacing boss. The limiting boss can enable the bottom plate connecting sleeve to be greatly restricted in rotation and turnover angle, and stability of the fastener structure is improved.

Furthermore, the limiting bosses are arranged on the distance-adjusting cover plate, and the bottom plate connecting sleeve is arranged between the two limiting bosses.

Furthermore, the bottom plate connecting sleeve is provided with a first surface, and the first surface is attached to the limiting boss. The setting of first face is convenient for roll adjustment apron to carry out the roll adjustment.

Furthermore, the limiting bosses are arranged on the bottom plate connecting sleeve, and the distance adjusting cover plate is arranged between the two limiting bosses.

Furthermore, a second surface is arranged on the distance-adjusting cover plate, and the second surface is attached to the limiting boss. The setting of second face is convenient for roll adjustment apron to carry out the roll adjustment.

Furthermore, the limiting structure further comprises a limiting groove, and the limiting groove is matched with the limiting boss. The setting of spacing recess for spacing boss does not expose externally, protects spacing boss, reduces the wearing and tearing to spacing boss, thereby has further increased fastener structure's stability.

Furthermore, the limiting boss is arranged on the distance-adjusting cover plate, and the limiting groove is arranged on the bottom plate connecting sleeve.

Furthermore, the limiting groove is formed in the distance-adjusting cover plate, and the limiting boss is arranged on the bottom plate connecting sleeve.

Furthermore, set up first tooth on the roll adjustment apron, first tooth orientation is close to the direction of bottom plate adapter sleeve extends set up the second tooth on the lower iron backing plate, first tooth with the second tooth cooperatees. The first teeth of the distance-adjusting cover plate are meshed with the second teeth of the lower iron base plate, so that the characteristic that the fastener can be stably fixed during working is guaranteed.

The utility model provides a stable in structure's double-deck damping fastener, for prior art, a stable in structure's double-deck damping fastener have following beneficial effect:

the utility model relates to a stable in structure's double-deck damping fastener, the setting of limit structure has restricted the rotation of bottom plate adapter sleeve, prevents that the bottom plate adapter sleeve from taking place to overturn to the stability of fastener structure has been improved; in addition, limit structure's setting does not influence the roll adjustment function of roll adjustment apron, has further promoted fastener structure's stability to promote stability, travelling comfort and the security of train.

Drawings

FIG. 1 is a schematic perspective view of a dual-layered non-linear damping fastener according to the prior art;

FIG. 2 is a schematic structural view of a dual-layer non-linear damping fastener of the prior art;

FIG. 3 is a schematic perspective view of a connection sleeve of a base plate and a distance-adjusting cover plate in the prior art;

FIG. 4 is a schematic view of a section structure of a connecting sleeve of a distance-adjusting cover plate and a bottom plate in the prior art;

FIG. 5 is a schematic cross-sectional view of the prior art illustrating the matching of the distance-adjusting cover plate, the bottom plate connecting sleeve and the lower iron backing plate;

fig. 6 is a schematic perspective view of a distance-adjustable cover plate according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a connecting sleeve of a bottom plate according to an embodiment of the present invention;

fig. 8 is a schematic view of a three-dimensional structure of the matching of the distance-adjusting cover plate and the bottom plate connecting sleeve according to the embodiment of the present invention;

fig. 9 is a schematic perspective view of a distance-adjustable cover plate according to an embodiment of the present invention;

fig. 10 is a second schematic perspective view of a distance-adjusting cover plate according to an embodiment of the present invention;

fig. 11 is a second schematic perspective view of a bottom plate connection sleeve according to an embodiment of the present invention;

fig. 12 is a second schematic perspective view of the matching of the distance-adjustable cover plate and the bottom plate connecting sleeve according to the embodiment of the present invention;

fig. 13 is a second schematic view of the matching cross-sectional structure of the connecting sleeve of the distance-adjusting cover plate and the bottom plate according to the embodiment of the present invention;

fig. 14 is a third schematic view of a three-dimensional structure of a distance-adjusting cover plate according to an embodiment of the present invention;

fig. 15 is a third schematic view of a three-dimensional structure of a bottom plate connecting sleeve according to an embodiment of the present invention;

fig. 16 is a third schematic view of a three-dimensional structure of the matching of the distance-adjusting cover plate and the bottom plate connecting sleeve according to the embodiment of the present invention;

fig. 17 is a third schematic view of a matched section structure of the connecting sleeve of the distance-adjusting cover plate and the bottom plate according to the embodiment of the present invention;

fig. 18 is a fourth schematic view of a three-dimensional structure of the matching of the distance-adjusting cover plate and the bottom plate connecting sleeve according to the embodiment of the present invention;

fig. 19 is a fourth schematic view of the matching section structure of the distance-adjusting cover plate and the bottom plate connecting sleeve according to the embodiment of the present invention.

Description of reference numerals:

1. a steel rail; 2. a pad under the rail; 3. feeding an iron base plate; 4. an intermediate vibration damping pad; 5. a lower iron base plate; 51. a second tooth; 6. coupling the backing plate; 7. a gauge block; 8. a spring bar; 9. an anchor bolt; 10. a gasket; 11. a distance adjusting cover plate; 111. a second face; 112. connecting holes; 113. a convex column; 114. a first tooth; 12. a bottom plate connecting sleeve; 120. a convex edge; 121. mounting holes; 122. installing a groove; 123. a locking structure; 124. a first side; 13. a limiting structure; 131. a limiting boss; 132. and a limiting groove.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The descriptions of "first", "second", etc. mentioned in the embodiments of the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Reference will now be made to the drawings and the accompanying drawings. The present invention will be described in detail with reference to examples.

Example 1

As shown in fig. 1 to 5, the conventional double-layered vibration damping clip includes, from top to bottom, a rail lower pad 2 located below a rail 1, an upper iron tie plate 3, an intermediate vibration damping pad 4, a lower iron tie plate 5, and a coupling tie plate 6 provided on a sleeper. Middle damping pad 4 is laid go up between iron backing plate 3 and the lower iron backing plate 5, go up iron backing plate 3, middle damping pad 4 and lower iron backing plate 5 and constitute through bottom plate adapter sleeve 12 auto-lock, bottom plate adapter sleeve 12 cover is established between the 5 transverse directions of upper and lower iron backing plate. The middle damping pad 4 can enable the upper iron base plate 3 to sink uniformly under the action of a vertical force, so that the bending deformation of the iron base plate is effectively reduced, and the service life is prolonged. The lower iron backing plate 5 is laid on the coupling backing plate 6. The top of the anchoring bolt 9 is sequentially sleeved with a gasket 10 and a distance-adjusting cover plate 11 from top to bottom, and penetrates through the upper iron base plate 3, the lower iron base plate 5 and the coupling base plate 6 to be fixed on the sleeper. And gauge blocks 7 are arranged on two sides of the steel rail 1, and the gauge blocks 7 press the rail lower pad 2. The rail lower pad 2 is arranged above the upper iron base plate 3, and the steel rail 1 is tightly pressed on the upper iron base plate 3 through an elastic strip 8.

Specifically, as shown in fig. 3 to 4, the distance adjusting cover plate 11 is disposed above the bottom plate connecting sleeve 12.

Specifically, as shown in fig. 5 and 6, a connection hole 112, a convex column 113 and a first tooth 114 are arranged on the distance adjusting cover plate 11, the first tooth 114 extends towards a direction close to the bottom plate connection sleeve 12, a second tooth 51 is arranged on the lower iron backing plate 5, the second tooth 51 extends towards a direction close to the distance adjusting cover plate 11, and the first tooth 114 is matched with the second tooth 51. The first teeth 114 of the distance-adjusting cover plate 11 are engaged with the second teeth 51 of the lower iron backing plate 5, so that the characteristic that the fastener can be stably fixed during working is ensured.

Specifically, as shown in fig. 7, a flange 120, a mounting hole 121, a mounting groove 122 and a locking structure 123 are disposed on the connecting sleeve 12 of the bottom plate. The bottom plate connecting sleeve 12 locks the lower iron backing plate 5 through the locking structure 123.

More specifically, the mounting groove 122 is used for being matched and connected with the convex column 113.

The utility model discloses a stable in structure's double-deck damping fastener roll adjustment apron 11 and/or set up limit structure 13 on the bottom plate adapter sleeve 12. The arrangement of the limiting structure 13 limits the rotation of the bottom plate connecting sleeve 12, and prevents the bottom plate connecting sleeve 12 from being inverted, so that the stability of the fastener structure is improved; in addition, limit structure 13's setting does not influence the roll adjustment function of roll adjustment apron 11, has further promoted fastener structure's stability to promote stability, travelling comfort and the security of train.

Specifically, as shown in fig. 6, 8 and 9, the limiting structure 13 includes a limiting boss 131. The limiting boss 131 can enable the connecting sleeve 12 of the bottom plate to be greatly restricted in rotation and turnover angle, and stability of the fastener structure is improved.

Specifically, the shape of the limiting boss 131 is not limited, and the limiting boss 131 may be rectangular or trapezoidal. Preferably, in this embodiment, as shown in fig. 6, the upper surface of the limiting boss 131 is trapezoidal.

Specifically, as shown in fig. 6 and 8, the limiting bosses 131 are disposed along the front-rear direction of the distance adjusting cover plate 11. The limiting boss 131 is arranged in the front-back direction of the distance adjusting cover plate 11, so that the distance adjusting cover plate 11 can adjust the distance in the front-back direction conveniently.

Specifically, as shown in fig. 9, the number of the limiting bosses 131 is two, and the two limiting bosses 131 are respectively disposed at the left end and the right end of the distance adjusting cover plate 11. The number of spacing boss 131 sets up to two, and two spacing bosses 131 set up both ends about adjustable distance apron 11 respectively, and the apron of being convenient for carries on spacingly with bottom plate adapter sleeve 12 in left and right directions.

Specifically, as shown in fig. 6, 8 and 9, the limiting bosses 131 are disposed on the distance-adjusting cover plate 11, the limiting bosses 131 extend toward a direction close to the bottom plate connecting sleeve 12, and the bottom plate connecting sleeve 12 is disposed between the two limiting bosses 131.

More specifically, as shown in fig. 6 to 9, a first surface 124 is disposed on the bottom plate connecting sleeve 12, and the first surface 124 is attached to the limiting boss 131. In the present embodiment, as shown in fig. 7, the first surface 124 is formed in a rectangular shape.

Example 2

Unlike embodiment 1, as shown in fig. 11 to 13, the limiting boss 131 is provided on the bottom plate connecting sleeve 12, and the limiting boss 131 extends toward a direction close to the distance adjusting cover plate 11.

Specifically, as shown in fig. 11, the limiting boss 131 is disposed along the front-back direction of the bottom plate connecting sleeve 12. The limiting boss 131 is arranged along the front and back direction of the bottom plate connecting sleeve 12, so that the distance adjusting cover plate 11 can adjust the distance along the front and back direction.

Specifically, as shown in fig. 11, 12 and 13, the number of the limiting bosses 131 is two, and the two limiting bosses 131 are respectively arranged at the left end and the right end of the bottom plate connecting sleeve 12.

Specifically, as shown in fig. 12 and 13, the distance adjusting cover plate 11 is disposed between the two limiting bosses 131.

More specifically, as shown in fig. 10, 12 and 13, a second surface 111 is provided on the distance-adjusting cover plate 11, and the second surface 111 is attached to the limit boss 131.

In the present embodiment, as shown in fig. 10, the second surface 111 is configured to be rectangular.

Example 3

Different from the embodiments 1 and 2, the position limiting structure 13 further comprises a position limiting groove 132, and the position limiting groove 132 is matched with the position limiting boss 131. The arrangement of the limiting groove 132 enables the limiting boss 131 not to be exposed outside, protects the limiting boss 131, reduces abrasion to the limiting boss 131, and further increases stability of the fastener structure.

Specifically, the number of the limiting grooves 132 is the same as that of the limiting bosses 131.

Specifically, as shown in fig. 14 to 17, the limiting boss 131 is disposed on the distance adjusting cover plate 11, the limiting boss 131 extends toward a direction close to the bottom plate connecting sleeve 12, the limiting groove 132 is disposed on the bottom plate connecting sleeve 12, and the limiting groove 132 extends toward a direction away from the distance adjusting cover plate 11.

More specifically, as shown in fig. 14 and 15, the limiting boss 131 is disposed along the front-back direction of the distance-adjusting cover plate 11, and the limiting groove 132 is disposed along the front-back direction of the base plate connecting sleeve 12, so that the distance-adjusting cover plate 11 can be adjusted along the front-back direction.

In the present embodiment, as shown in fig. 14, the upper surface of the position-limiting projection 131 is trapezoidal, and thus, as shown in fig. 15, the upper surface of the position-limiting groove 132 is also trapezoidal.

In this embodiment, as shown in fig. 14, the number of the limiting bosses 131 is two, and the two limiting bosses 131 are respectively disposed at positions close to the left and right ends of the distance adjusting cover plate 11. Therefore, as shown in fig. 15, the number of the limiting grooves 132 is two, and the two limiting grooves 132 are respectively disposed at positions close to the left and right ends of the floor connecting sleeve 12.

Example 4

Different from embodiment 3, specifically, as shown in fig. 18 to 19, the limiting groove 132 is disposed on the distance-adjusting cover plate 11, the limiting groove 132 extends in a direction away from the base plate connecting sleeve 12, the limiting boss 131 is disposed on the base plate connecting sleeve 12, and the limiting boss 131 extends in a direction close to the distance-adjusting cover plate 11.

Specifically, as shown in fig. 18, the limiting boss 131 is disposed along the front-back direction of the bottom plate connecting sleeve 12, and the limiting groove 132 is disposed along the front-back direction of the distance adjusting cover plate 11, so that the distance adjusting cover plate 11 can adjust the distance along the front-back direction.

In this embodiment, as shown in fig. 18 and 19, the number of the limiting bosses 131 is two, and the two limiting bosses 131 are respectively disposed at positions close to the left and right ends of the bottom plate connecting sleeve 12. Therefore, as shown in fig. 18 and 19, the number of the limiting grooves 132 is two, and the two limiting grooves 132 are respectively disposed at positions close to the left and right ends of the distance adjusting cover plate 11.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (10)

1. The utility model provides a stable in structure's double-deck damping fastener, damping fastener includes rail underboarding (2), goes up indisputable backing plate (3), middle damping pad (4) and indisputable backing plate (5) down, go up indisputable backing plate (3), middle damping pad (4) and indisputable backing plate (5) down and constitute through bottom plate adapter sleeve (12) auto-lock, set up roll adjustment apron (11) on bottom plate adapter sleeve (12), its characterized in that roll adjustment apron (11) and/or set up limit structure (13) on bottom plate adapter sleeve (12).

2. A structurally stable double-deck vibration damping fastener according to claim 1, wherein said spacing structure (13) comprises a spacing boss (131).

3. The structurally stable double-layer vibration damping fastener as claimed in claim 2, wherein the limiting bosses (131) are arranged on the distance adjusting cover plate (11), the number of the limiting bosses (131) is two, and the base plate connecting sleeve (12) is arranged between the two limiting bosses (131).

4. The structurally stable double-deck vibration damping fastener as claimed in claim 3, wherein a first surface (124) is arranged on the base plate connecting sleeve (12), and the first surface (124) is attached to the limiting boss (131).

5. The structurally stable double-layer vibration damping fastener as claimed in claim 2, wherein the limiting bosses (131) are arranged on the base plate connecting sleeve (12), the number of the limiting bosses (131) is two, and the distance adjusting cover plate (11) is arranged between the two limiting bosses (131).

6. The structurally stable double-layer vibration damping fastener according to claim 5, wherein a second surface (111) is arranged on the distance adjusting cover plate (11), and the second surface (111) is attached to the limit boss (131).

7. A structurally stable double-deck vibration-damping fastener according to claim 2, wherein said retaining structure (13) further comprises a retaining groove (132), said retaining groove (132) cooperating with said retaining protrusion (131).

8. The structurally stable double-deck vibration damping fastener as claimed in claim 7, wherein said limit boss (131) is provided on said distance-adjusting cover plate (11), and said limit recess (132) is provided on said base plate connecting sleeve (12).

9. The structurally stable double-deck vibration damping fastener according to claim 7, wherein the limiting groove (132) is provided on the distance-adjusting cover plate (11), and the limiting boss (131) is provided on the base plate connecting sleeve (12).

10. The structurally stable double-deck vibration damping fastener as claimed in claim 1, wherein a first tooth (114) is provided on said distance-adjusting cover plate (11), said first tooth (114) extends toward a direction close to said base plate connecting sleeve (12), a second tooth (51) is provided on said lower iron backing plate (5), and said first tooth (114) is engaged with said second tooth (51).

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