Elastic strip III type damping fastener

Abstract

The utility model discloses an elastic strip III type damping fastener which comprises a steel rail, elastic strips are arranged on the two sides of the steel rail, a first damping base plate is arranged on the lower portions of the elastic strips, an under-rail damping plate is fixedly arranged at the bottom of the steel rail, a second damping base plate is arranged below the first damping base plate, and a third damping base plate is arranged at the bottom of the second damping base plate. A third damping base plate is arranged below the third damping base plate, and a height adjusting base plate used for adjusting the height of the steel rail is installed at the bottom of the fourth damping base plate. According to the damping fastener, by arranging the cross-shaped clamping blocks and the cross-shaped clamping grooves, the stability among a plurality of damping base plates is improved, the risk of looseness is reduced, the damping and noise reduction effects of the damping fastener are further improved, and the use requirement of track damping is met. By arranging the first damping base plate, the second damping base plate, the third damping base plate and the fourth damping base plate, the damping effect can be improved, and the using effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to a spring bar fastener technical field especially relates to a spring bar III type shock absorbing fastener. BACKGROUND

[0002] The spring bar fastener is the part used to connect the rail and the sleeper on the track, also called the intermediate connecting part, its function is to fix the rail on the sleeper, keep the track gauge and prevent the longitudinal and transverse movement of the rail relative to the sleeper, the rail fastener includes the rail spike, the rail pad and the elastic or rigid fastening piece etc., the fastener should be able to keep the reliable connection of the rail and the sleeper for a long time, and can fully play its buffering and shock absorbing performance under the action of power, delay the accumulation of track residual deformation, the track transportation system produces vibration impact and noise due to the impact of the wheel and the rail in the running process, the shock wave will spread in the track, tunnel, soil layer and ground building, produce the corresponding vibration, cause very unfavorable influence to the surrounding environment, in order to reduce the vibration, noise caused by urban track transportation, the research and development of vibration and noise reduction equipment are gradually valued.

[0003] The existing technology has the following problems:

[0004] After a large amount of retrieval, the patent file with the application number CN201721133176.X discloses a spring bar III type split shock absorbing fastener, the stability of the shock absorbing pad in the actual use process of the patent needs to be improved, there is the risk of easy vibration and loosening, it is difficult to guarantee the vibration and noise reduction effect, and it cannot meet the use requirement of track shock absorption.

[0005] Therefore, we propose a spring bar III type shock absorbing fastener to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the shortcomings in the prior art and provides a spring bar III type shock absorbing fastener.

[0007] In order to achieve the above object, the utility model adopts the following technical scheme: a spring bar III type shock absorbing fastener, including the rail, the rail is equipped with the spring bar on both sides, and the lower part of the spring bar is equipped with the first shock absorbing pad, the bottom of the rail is fixedly provided with the rail shock absorbing plate, the lower part of the first shock absorbing pad is provided with the second shock absorbing pad, and the bottom of the second shock absorbing pad is provided with the third shock absorbing pad, the lower part of the third shock absorbing pad is provided with the third shock absorbing pad, and the bottom of the fourth shock absorbing pad is provided with the height adjusting pad for adjusting the height of the rail, the side surface of the first shock absorbing pad, the second shock absorbing pad, the third shock absorbing pad and the fourth shock absorbing pad is all provided with the cross slot, and the side surface of the second shock absorbing pad, the third shock absorbing pad, the fourth shock absorbing pad and the height adjusting pad is fixedly connected with the cross block matched with the cross slot.

[0008] Preferably, the cross-shaped slots are provided in multiple locations, and the multiple cross-shaped slots are evenly distributed at the four corners of the surfaces of the first damping pad, the second damping pad, the third damping pad, and the fourth damping pad.

[0009] Preferably, the number of cross-shaped locking blocks is the same as the number of cross-shaped locking slots.

[0010] Preferably, the first damping pad, the second damping pad, the third damping pad, the fourth damping pad, and the height adjustment pad have the same surface area.

[0011] Preferably, an L-shaped insulating gauge block is provided between the rail and the spring bar.

[0012] Preferably, the width of the under-rail damping plate is the same as the width of the rail.

[0013] Preferably, the aforementioned.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting cross-shaped locking blocks and cross-shaped locking slots, the stability between multiple shock-absorbing pads is improved, the risk of loosening is reduced, and the shock-absorbing fastener's shock absorption and noise reduction effect is further improved, meeting the requirements for track shock absorption.

[0016] 2. By setting a first damping pad, a second damping pad, a third damping pad, and a fourth damping pad in this utility model, the damping effect can be improved and the performance can be better. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the external structure of a spring bar type III shock-absorbing fastener proposed in this utility model;

[0019] Figure 2 This is a cross-sectional view of a type III spring-loaded shock-absorbing fastener proposed in this utility model;

[0020] Figure 3 A three-dimensional view of the fourth shock-absorbing pad and the cross-shaped groove;

[0021] Figure 4 This is a 3D view of the third shock-absorbing pad and the locking block.

[0022] Legend:

[0023] 1. Rail; 2. Elastic clip; 3. Rail damping plate; 4. First damping pad; 5. Second damping pad; 6. Third damping pad; 7. Fourth damping pad; 8. Adjustment pad; 9. Insulated gauge block; 10. Cross-shaped locking block; 11. Cross-shaped locking groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, 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 an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] Please refer to Figures 1-4 A type III spring-loaded shock-absorbing fastener includes a rail 1, with spring-loaded strips 2 on both sides of the rail 1. A first shock-absorbing pad 4 is provided at the lower part of the spring-loaded strip 2. A rail-mounted shock-absorbing plate 3 is fixed at the bottom of the rail 1. A second shock-absorbing pad 5 is provided below the first shock-absorbing pad 4. A third shock-absorbing pad 6 is provided at the bottom of the second shock-absorbing pad 5. A third shock-absorbing pad 6 is provided below the third shock-absorbing pad 6. A height-adjusting pad 8 for adjusting the height of the rail 1 is installed at the bottom of a fourth shock-absorbing pad 7. A cross-shaped groove 11 is provided on one side surface of the first shock-absorbing pad 4, the second shock-absorbing pad 5, the third shock-absorbing pad 6, and the fourth shock-absorbing pad 7. A cross-shaped locking block 10 for cooperating with the cross-shaped groove 11 is fixed to one side surface of the second shock-absorbing pad 5, the third shock-absorbing pad 6, the fourth shock-absorbing pad 7, and the height-adjusting pad 8.

[0027] In this implementation scheme: multiple cross-shaped slots 11 are provided, and the multiple cross-shaped slots 11 are evenly distributed at the four corners of the surfaces of the first damping pad 4, the second damping pad 5, the third damping pad 6 and the fourth damping pad 7.

[0028] Specifically, by setting the cross-shaped locking block 10 and the cross-shaped locking groove 11, the stability between multiple shock-absorbing pads is improved, the risk of loosening is reduced, and the shock-absorbing fastener's shock absorption and noise reduction effect is further improved, meeting the requirements for track shock absorption. Among them, the first shock-absorbing pad 4, the second shock-absorbing pad 5, the third shock-absorbing pad 6, and the fourth shock-absorbing pad 7 can improve the shock absorption effect and have a better performance.

[0029] In this implementation scheme: the number of cross-shaped locking blocks 10 is the same as the number of cross-shaped locking slots 11.

[0030] Specifically, the tightness between the first damping pad 4, the second damping pad 5, the third damping pad 6, the fourth damping pad 7, and the height adjustment pad 8 should be further improved to prevent loosening.

[0031] In this implementation plan: the first damping pad 4, the second damping pad 5, the third damping pad 6, the fourth damping pad 7, and the height adjustment pad 8 have the same surface area.

[0032] Specifically, to reduce installation difficulty, there is no need to distinguish between the first damping pad 4, the second damping pad 5, the third damping pad 6, and the fourth damping pad 7 during the installation process.

[0033] In this implementation plan: an L-shaped insulating gauge block 9 is provided between the rail 1 and the elastic bar 2.

[0034] Specifically, ensure the normal operation of the shock-absorbing fasteners.

[0035] In this implementation plan: the width of the under-rail damping plate 3 is the same as the width of the rail 1.

[0036] Specifically, it facilitates installation and makes installation more convenient.

[0037] Working principle: During use, by setting the cross-shaped locking block 10 and the cross-shaped locking groove 11, the stability between multiple shock-absorbing pads is improved, the risk of loosening is reduced, and the shock-absorbing fastener's shock absorption and noise reduction effect is further improved, meeting the requirements of track shock absorption. Among them, the first shock-absorbing pad 4, the second shock-absorbing pad 5, the third shock-absorbing pad 6, and the fourth shock-absorbing pad 7 can improve the shock absorption effect and have a better performance.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spring bar type III shock-absorbing fastener comprising a rail (1), characterized in that, The both sides of the steel rail (1) are provided with elastic strips (2), and the lower part of the elastic strip (2) is provided with a first shock-absorbing pad (4), the bottom of the steel rail (1) is fixedly provided with a track under shock-absorbing plate (3), the lower part of the first shock-absorbing pad (4) is provided with a second shock-absorbing pad (5), the bottom of the second shock-absorbing pad (5) is provided with a third shock-absorbing pad (6), the lower part of the third shock-absorbing pad (6) is provided with a fourth shock-absorbing pad (7), the bottom of the fourth shock-absorbing pad (7) is mounted with a height adjusting pad (8) for adjusting the height of the steel rail (1), the side surface of the first shock-absorbing pad (4), the second shock-absorbing pad (5), the third shock-absorbing pad (6) and the fourth shock-absorbing pad (7) is provided with a cross clamping groove (11), and the side surface of the second shock-absorbing pad (5), the third shock-absorbing pad (6), the fourth shock-absorbing pad (7) and the height adjusting pad (8) is fixedly connected with a cross clamping block (10) matched with the cross clamping groove (11).

2. A snap strip type III shock attenuation fastener according to claim 1, characterized in that The cross clamping groove (11) is provided with a plurality of cross clamping grooves (11), and the plurality of cross clamping grooves (11) are uniformly distributed at the four corners of the surface of the first shock-absorbing pad (4), the second shock-absorbing pad (5), the third shock-absorbing pad (6) and the fourth shock-absorbing pad (7).

3. A snap strip type III shock attenuation fastener according to claim 1, characterized in that The number of the cross clamping block (10) is same as the number of the cross clamping groove (11).

4. A snap strip type III shock attenuation fastener according to claim 1, characterized in that The surface area of the first shock-absorbing pad (4), the second shock-absorbing pad (5), the third shock-absorbing pad (6), the fourth shock-absorbing pad (7) and the height adjusting pad (8) is same.

5. A snap strip type III shock attenuation fastener according to claim 1, wherein The L-shaped insulating gauge block (9) is arranged between the steel rail (1) and the elastic strip (2).

6. A snap strip type III shock attenuation fastener according to claim 1, characterized in that The width of the track under shock-absorbing plate (3) is same as the width of the steel rail (1).

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