Embedded damping fastener

Abstract

The utility model discloses a pre-embedded damping fastener which comprises a first rail bearing plate body, a second rail bearing plate body, a first damping plate body and a second damping plate body, the first elastic base plate is arranged on the first rail bearing plate body; the second rail bearing plate body is arranged on the first elastic base plate, and the upper part is connected with a rail; the lower end of the fastener fixing seat is pre-buried in the sleeper, and the upper end of the fastener fixing seat penetrates through the first rail bearing plate body, the first elastic base plate and the second rail bearing plate body and extends out, and the upper end of the fastener fixing seat is located on one side of the rail; the transmission piece comprises a vertical rod piece arranged in the vertical cavity and a horizontal rod piece arranged in the horizontal cavity, the horizontal rod piece is sleeved with a first spring, and the vertical rod piece is sleeved with a second spring. According to the utility model, energy generated by passing of a train or other external forces can be effectively absorbed and dispersed, relative displacement between structural members is reduced, and the anti-seismic property of the whole structure is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of road construction and relates to a pre-buried shock-absorbing fastener. Background Art

[0002] The fastener is the intermediate connecting part between the rail and the sleeper. Its function is to fix the rail on the sleeper, maintain the track gauge and prevent the rail from moving longitudinally and transversely relative to the sleeper. On the track of concrete sleepers, the fastener needs to provide sufficient elasticity due to the poor elasticity of concrete sleepers. The structure and quality of the fastener are crucial to maintaining the reliability and effectiveness of the connection between the rail and the sleeper. Therefore, it is particularly important to develop a pre-embedded shock-absorbing fastener with excellent seismic performance for rail transportation safety. Summary of the invention

[0003] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages to be described below.

[0004] Another object of the utility model is to provide a pre-embedded shock absorbing fastener.

[0005] To this end, the technical solution provided by the utility model is:

[0006] The embedded shock-absorbing fastener comprises:

[0007] A first rail bearing plate body, which is fixed on the sleeper;

[0008] A first elastic pad, which is arranged on the first rail supporting plate body;

[0009] A second rail-supporting plate body is disposed on the first elastic pad, and an upper side of the second rail-supporting plate body is connected to a rail;

[0010] A fastener fixing seat, the lower end of which is pre-buried in the sleeper, and the upper end of which passes through the first rail support plate, the first elastic pad and the second rail support plate and extends out, the upper end of the fastener fixing seat is located on one side of the rail, wherein a horizontal cavity is arranged at the upper part of the lower end of the fastener fixing seat, a vertical cavity is arranged at the upper end of the fastener fixing seat along the vertical direction, the vertical cavity is connected with the horizontal cavity, and a first spring is arranged in the horizontal direction in the horizontal cavity;

[0011] The transmission member includes a vertical rod member arranged along the vertical direction and a horizontal rod member arranged along the horizontal direction, the horizontal rod member is connected to the vertical rod member, the vertical rod member is arranged in the vertical cavity along the vertical direction, and the horizontal rod member of the transmission member is arranged in the horizontal cavity, the first spring is sleeved on the outside of the horizontal rod member, the second spring is sleeved on the outside of the vertical rod member, and the end of the vertical rod member is exposed outside the fastener fixing seat and is fixed by a fixing member.

[0012] Preferably, the embedded shock-absorbing fastener further comprises a fixing device, and the fixing device comprises:

[0013] A clamping plate, which is sleeved on the outer side of the upper end of the fastener fixing seat and the inner side is connected to the rail;

[0014] A clamping ring, whose main body is sleeved on the outer side of the upper end of the fastener fixing seat and is located between the fastener fixing seat and the second rail support plate body. The clamping ring has an annular fixing edge extending horizontally outward along its main body, and the annular fixing edge is located above the second rail support plate body. The lower end of the clamping plate is fixed to the annular fixing edge.

[0015] Preferably, the embedded shock-absorbing fastener further comprises:

[0016] An elastic bar has one end pressed on the rail and the remaining part fixed on the clamping plate.

[0017] Preferably, the embedded shock-absorbing fastener further comprises:

[0018] The second elastic pad is fixed between the second rail supporting plate and the rail, the upper surfaces of the first elastic pad and the second elastic pad are evenly provided with a plurality of depressions, and the lower surfaces are both provided with a plurality of protrusions, and the positions of the protrusions and depressions are not corresponding.

[0019] Preferably, in the embedded shock-absorbing fastener, the first rail support plate, the first elastic pad, the second rail support plate and the second elastic pad are correspondingly provided with through holes allowing the fastener fixing seat to pass through.

[0020] Preferably, in the embedded shock-absorbing fastener, the through hole is rectangular.

[0021] The utility model at least has the following beneficial effects:

[0022] A first elastic pad is provided between the first rail-bearing plate and the second rail-bearing plate of the utility model, which can reduce the noise intensity generated by the direct collision between the pads when the train passes, and at the same time play a role of shock absorption. The second spring can also play a shock-absorbing role. At the same time, the first spring can disperse the transmitted pressure, reduce the vibration in the horizontal direction, and further play a shock-absorbing role. The utility model can effectively absorb and disperse the energy generated by the passing of the train or other external forces, reduce the relative displacement between the structural parts, and improve the seismic performance of the overall structure.

[0023] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a fastener fixing seat in one solution of the utility model.

[0025] Figure 2 It is a schematic structural diagram of a pre-embedded shock-absorbing fastener in one solution of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0027] It should be understood that terms such as “having”, “including” and “comprising” used herein do not specify the existence or addition of one or more other elements or combinations thereof.

[0028] like Figure 1 and Figure 2 As shown, the utility model provides a pre-embedded shock-absorbing fastener, comprising:

[0029] A first rail bearing plate 1, which is fixed on the sleeper 100;

[0030] A first elastic pad 3, which is arranged on the first rail support plate body 1;

[0031] A second rail-supporting plate 2, which is disposed on the first elastic pad 3, and an upper side of the second rail-supporting plate 2 is connected to a rail 200;

[0032] A fastener fixing seat 4, the lower end of which is pre-buried in the sleeper 100, and the upper end of which passes through the first rail support plate 1, the first elastic pad 3 and the second rail support plate 2 and extends out, the upper end of the fastener fixing seat 4 is located on one side of the rail 200, wherein a horizontal cavity 401 is provided at the upper part of the lower end of the fastener fixing seat 4, and a vertical cavity 402 is provided at the upper end of the fastener fixing seat 4 along the vertical direction, the vertical cavity 402 is connected with the horizontal cavity 401, and a first spring 5 is provided in the horizontal cavity 401 along the horizontal direction;

[0033] The transmission member 6 includes a vertical rod arranged in the vertical direction and a horizontal rod arranged in the horizontal direction, the horizontal rod is connected to the vertical rod (for example, screwed), the vertical rod is arranged in the vertical cavity 402 in the vertical direction, and the horizontal rod of the transmission member 6 is arranged in the horizontal cavity 401, the first spring 5 is sleeved on the outside of the horizontal rod, the other end of the transmission member 6 is covered with a second spring, and the other end of the transmission member 6 is exposed outside the fastener fixing seat 4 and fixed by a fixing member. The fixing member can be a nut, which is screwed with the nut by setting a matching thread on the vertical rod.

[0034] A first elastic pad 3 is provided between the first rail support plate 1 and the second rail support plate 2 of the utility model, which can reduce the noise intensity generated by the direct collision between the pads when the train passes, and at the same time play a role of shock absorption. The second spring 5 can also play a shock-absorbing role. At the same time, the first spring can disperse the transmitted pressure, reduce the vibration in the horizontal direction, and further play a shock-absorbing role. The utility model can effectively absorb and disperse the energy generated by the passing of the train or other external forces, reduce the relative displacement between the structural parts, and improve the seismic performance of the overall structure.

[0035] In the above scheme, as a preference, a fixing device is further included, and the fixing device includes:

[0036] The clamping plate 9 is sleeved on the outer side of the upper end of the fastener fixing seat 4, and the inner side is connected to the rail 200; the clamping plate can be fixed to the rail by nuts, screws or other means.

[0037] The main body of the snap ring is sleeved on the outer side of the upper end of the fastener fixing seat 4 and is located between the fastener fixing seat 4 and the second rail support plate body 2. The snap ring has an annular fixing edge extending horizontally outward along its main body. The annular fixing edge is located above the second rail support plate body 2, and the lower end of the clamping plate 9 is fixed to the annular fixing edge. The upper end of the fastener fixing seat 4 is fixed to the rail 200, the clamping plate, etc. by the clamping plate 9 and the snap ring. Preferably, the main body of the snap ring is made of elastic material. The gap between the fastener fixing seat 4 and the second rail support plate body 2 is further reduced by the elastic main body of the snap ring. The annular fixing edge is made of metal.

[0038] In one solution of the present invention, preferably, it also includes:

[0039] The spring bar has one end pressed on the rail 200, and the remaining part is fixed on the clamping plate 9. Further shock absorption.

[0040] In one solution of the present invention, preferably, it also includes:

[0041] The second elastic pad is fixed between the second rail bearing plate 2 and the rail 200. The upper surfaces of the first elastic pad 3 and the second elastic pad are evenly provided with a plurality of depressions, and the lower surfaces are both provided with a plurality of protrusions, and the positions of the protrusions and depressions are not corresponding. It is used to further absorb and disperse the energy generated by external forces such as earthquakes and reduce the relative displacement between structural members.

[0042] In one of the schemes of the present utility model, preferably, the first rail support plate 1, the first elastic pad 3, the second rail support plate 2 and the second elastic pad are correspondingly provided with through holes allowing the fastener fixing seat 4 to pass through.

[0043] In one solution of the present invention, preferably, the through hole is rectangular.

[0044] In order to enable those skilled in the art to better understand the technical solution of the utility model, the following technical solution is provided for illustration:

[0045] A pre-embedded shock-absorbing fastener, comprising:

[0046] A first rail bearing plate 1, which is fixed on the sleeper 100;

[0047] A first elastic pad 3, which is arranged on the first rail support plate body 1;

[0048] A second rail-supporting plate 2, which is disposed on the first elastic pad 3, and an upper side of the second rail-supporting plate 2 is connected to a rail 200;

[0049] A fastener fixing seat 4, the lower end of which is pre-buried in the sleeper 100, and the upper end of which passes through the first rail support plate 1, the first elastic pad 3 and the second rail support plate 2 and extends out, the upper end of the fastener fixing seat 4 is located on one side of the rail 200, wherein a horizontal cavity 401 is provided at the upper part of the lower end of the fastener fixing seat 4, and a vertical cavity 402 is provided at the upper end of the fastener fixing seat 4 along the vertical direction, the vertical cavity 402 is connected with the horizontal cavity 401, and a first spring 5 is provided in the horizontal cavity 401 along the horizontal direction;

[0050] The transmission member 6 is arranged in the vertical cavity 402 along the vertical direction, and the horizontal rod of the transmission member 6 is arranged in the horizontal cavity 401, the first spring 5 is sleeved on the outside of the horizontal rod, and the other end of the transmission member 6 is sleeved with a second spring, and the other end of the transmission member 6 is exposed outside the fastener fixing seat 4 and fixed by a fixing member.

[0051] A fixing device, the fixing device comprising:

[0052] A clamping plate 9, which is sleeved on the outer side of the upper end of the fastener fixing seat 4, and the inner side of which abuts against the rail 200;

[0053] The main body of the snap ring 8 is sleeved on the outer side of the upper end of the fastener fixing seat 4 and is located between the fastener fixing seat 4 and the second rail support plate 2. The snap ring 8 has an annular fixing edge extending horizontally outward along its main body. The annular fixing edge is located above the second rail support plate 2. The lower end of the clamping plate 9 is fixed to the annular fixing edge. The upper end of the fastener fixing seat 4 is fixed to the rail 200, the clamping plate, etc. by the clamping plate 9 and the snap ring 8. Preferably, the main body of the snap ring 8 is made of elastic material. The gap between the fastener fixing seat 4 and the second rail support plate 2 is further reduced by the elastic main body of the snap ring 8. The annular fixing edge is made of metal.

[0054] The spring bar has one end pressed on the rail 200, and the remaining part is fixed on the clamping plate 9. Further shock absorption.

[0055] The second elastic pad is fixed between the second rail bearing plate 2 and the rail 200. The upper surfaces of the first elastic pad 3 and the second elastic pad are evenly provided with a plurality of depressions, and the lower surfaces are both provided with a plurality of protrusions, and the positions of the protrusions and depressions are not corresponding. It is used to further absorb and disperse the energy generated by external forces such as earthquakes and reduce the relative displacement between structural members.

[0056] The first rail support plate 1, the first elastic pad 3, the second rail support plate 2 and the second elastic pad are all provided with corresponding through holes for allowing the fastener fixing seat 4 to pass through. The through holes are rectangular.

[0057] The number of modules and processing scale described here are used to simplify the description of the utility model. The application, modification and variation of the embedded shock-absorbing fastener of the utility model are obvious to those skilled in the art.

[0058] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. Pre-embedded shock-absorbing fastener, characterized in that: include: A first rail bearing plate body, which is fixed on the sleeper; A first elastic pad, which is arranged on the first rail supporting plate body; A second rail-supporting plate body is disposed on the first elastic pad, and an upper side of the second rail-supporting plate body is connected to a rail; A fastener fixing seat, the lower end of which is pre-buried in the sleeper, and the upper end of which passes through the first rail support plate, the first elastic pad and the second rail support plate and extends out, the upper end of the fastener fixing seat is located on one side of the rail, wherein a horizontal cavity is arranged at the upper part of the lower end of the fastener fixing seat, a vertical cavity is arranged at the upper end of the fastener fixing seat along the vertical direction, the vertical cavity is connected with the horizontal cavity, and a first spring is arranged in the horizontal direction in the horizontal cavity; The transmission member includes a vertical rod member arranged along the vertical direction and a horizontal rod member arranged along the horizontal direction, the horizontal rod member is connected to the vertical rod member, the vertical rod member is arranged in the vertical cavity along the vertical direction, and the horizontal rod member of the transmission member is arranged in the horizontal cavity, the first spring is sleeved on the outside of the horizontal rod member, the second spring is sleeved on the outside of the vertical rod member, and the end of the vertical rod member is exposed outside the fastener fixing seat and is fixed by a fixing member.

2. The embedded shock-absorbing fastener according to claim 1, characterized in that: It also includes a fixing device, the fixing device comprising: A clamping plate, which is sleeved on the outer side of the upper end of the fastener fixing seat and the inner side is connected to the rail; A clamping ring, whose main body is sleeved on the outer side of the upper end of the fastener fixing seat and is located between the fastener fixing seat and the second rail support plate body. The clamping ring has an annular fixing edge extending horizontally outward along its main body, and the annular fixing edge is located above the second rail support plate body. The lower end of the clamping plate is fixed to the annular fixing edge.

3. The embedded shock-absorbing fastener according to claim 2, characterized in that: Also includes: An elastic bar has one end pressed on the rail and the remaining part fixed on the clamping plate.

4. The embedded shock-absorbing fastener according to claim 1, characterized in that: Also includes: The second elastic pad is fixed between the second rail supporting plate and the rail, the upper surfaces of the first elastic pad and the second elastic pad are evenly provided with a plurality of depressions, and the lower surfaces are both provided with a plurality of protrusions, and the positions of the protrusions and depressions are not corresponding.

5. The embedded shock-absorbing fastener according to claim 4, characterized in that: The first rail support plate, the first elastic pad, the second rail support plate and the second elastic pad are correspondingly provided with through holes allowing the fastener fixing seat to pass through.

6. The embedded shock-absorbing fastener according to claim 5, characterized in that: The through hole is rectangular.

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