CN219808181U - Track fastener anti-vagus flow structure and track fastener - Google Patents
Track fastener anti-vagus flow structure and track fastener Download PDFInfo
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- CN219808181U CN219808181U CN202320163634.3U CN202320163634U CN219808181U CN 219808181 U CN219808181 U CN 219808181U CN 202320163634 U CN202320163634 U CN 202320163634U CN 219808181 U CN219808181 U CN 219808181U
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- nylon sleeve
- counter bore
- hole
- side wall
- sleeper
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Abstract
The utility model discloses a track fastener anti-vage structure and a track fastener, comprising a pre-buried nylon sleeve, a coupling backing plate and a nylon sleeve; the embedded nylon sleeve is vertically embedded in the sleeper, and a counter bore groove for inserting the nylon sleeve is formed in an inner ring of one end of the embedded nylon sleeve, which is higher than the surface of the sleeper; the coupling backing plate is arranged on the surface of the sleeper, a through hole is formed in the coupling backing plate, a counter bore positioned on the outer ring of the through hole is formed in the lower surface of the coupling backing plate, and the counter bore is clamped with the side wall of the counter bore groove; the nylon sleeve is inserted into the counter bore groove and clamps the side wall of the through hole with the side wall of the counter bore groove to form a seal. According to the utility model, the side wall of the counter bore groove of the embedded nylon sleeve is clamped with the counter bore on the coupling backing plate to form a sealing structure, and the nylon sleeve clamps the side wall of the through hole with the side wall of the counter bore groove when inserted into the counter bore groove to form another sealing structure, so that rainwater is prevented from flowing into the anchoring bolt from the gap of the coupling backing plate, and the anti-lost effect is improved.
Description
Technical Field
The utility model belongs to the technical field of rail fasteners, and particularly relates to a rail fastener anti-vage structure and a rail fastener.
Background
Stray currents, also referred to as "current fans," refer primarily to currents that do not move in a prescribed way. When the train runs on the track, current is easy to leak into the track bed and soil media around the track bed to cause a current, and the existence of the current can easily cause electrochemical corrosion of buried metal pipelines, communication cable sheaths around the track and steel bars in main structures of stations and section tunnels, so that the service lives of metal pipes and metal wires can be shortened, the strength and the durability of the main structures of reinforced concrete can be reduced, and even disastrous accidents are caused.
The fastener is an important connecting part for connecting the rail with the sleeper or other foundation under the rail, and has the functions of fixing the rail, preventing the rail from longitudinally and transversely shifting, preventing the rail from inclining, providing proper elasticity and transmitting the force born by the rail to the sleeper or the rail bed bearing platform. At present, most of used fastener systems in rail transit have no stray current protection measures, an anti-stray current structure is lacking between an embedded sleeve and a coupling backing plate in a traditional fastener, the traditional fastener is sealed by tightly pressing the coupling backing plate through the cooperation of a nylon sleeve and the embedded sleeve, and rainwater impurities are prevented from flowing into a gap to enable current between an anchor bolt and a sleeper to be conducted, but due to poor assembly precision, poor flatness of a contact surface and other reasons, gaps still exist at part of positions, the anchor bolt and the sleeper are still conducted through capillary phenomenon, and therefore stray current is difficult to prevent.
Disclosure of Invention
In order to overcome the technical defects, the utility model provides the track fastener anti-flow structure, which prevents rainwater impurities from flowing into the anchor bolt from the gap of the coupling backing plate, further prevents current leakage at the fastener and improves the anti-flow effect.
In order to solve the problems, the utility model is realized according to the following technical scheme:
a track fastener anti-lost flow structure comprises a pre-buried nylon sleeve, a coupling backing plate and a nylon sleeve;
the embedded nylon sleeve is vertically embedded in the sleeper, and a counter bore groove for inserting the nylon sleeve is formed in an inner ring of one end of the embedded nylon sleeve, which is higher than the surface of the sleeper;
the coupling backing plate is arranged on the surface of the sleeper, a through hole is formed in the coupling backing plate, a counter bore positioned on the outer ring of the through hole is formed in the lower surface of the coupling backing plate, and the counter bore is clamped with the side wall of the counter bore groove;
the nylon sleeve is inserted into the counter bore groove and clamps the side wall of the through hole with the side wall of the counter bore groove to form a seal.
Further, the side wall of the through hole is an elastic edge, and the single elastic edge is sunken towards the center of the through hole and is funnel-shaped.
Further, one end of the nylon sleeve, which is close to the sleeper, is provided with a chamfer.
Furthermore, one side of the side wall of the through hole, which is close to the sleeper, is a ring edge, and one end of the nylon sleeve, which is inserted into the through hole, compresses the ring edge.
Further, a convex ring is arranged at one end, close to the sleeper, of the nylon sleeve, the outer diameter of the convex ring is smaller than the inner diameter of the counter bore groove, and the convex ring and the side wall of the counter bore groove clamp the side wall of the through hole to form sealing.
Further, the inner diameter of the counter bore groove is larger than the outer diameter of the nylon sleeve.
Further, the inner diameter of the through hole is larger than the outer diameter of the nylon sleeve.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model discloses a track fastener anti-lost flow structure, wherein the side wall of a counter bore groove of a pre-buried nylon sleeve is clamped with a counter bore on a coupling backing plate to form a sealing structure, the nylon sleeve is clamped with the side wall of a through hole together with the side wall of the counter bore groove when inserted into the counter bore groove to form another sealing structure, and the two sealing structures effectively prevent rainwater from flowing into an anchor bolt from a gap of the coupling backing plate, so that the sealing effect is improved, current leakage at a fastener is effectively prevented, and the anti-lost flow effect is improved.
The utility model also discloses a track fastener, which comprises any one of the anti-lost flow structure of the track fastener, an anchor bolt, a distance adjusting buckle plate, a flat gasket, a spring gasket, a plate lower backing plate, an iron cushion block, a buckle, a track lower backing plate, a track gauge block and a spring strip; the anti-lost flow rail fastener comprises a spring strip, a gauge block, a rail lower base plate, a buckle, an iron cushion block and a plate lower base plate, wherein the nylon sleeve in the anti-lost flow structure, the gauge buckle, a flat washer and a spring washer are sequentially sleeved outside an anchor bolt in the anti-lost flow structure of the rail fastener, and the anchor bolt penetrates through a through hole in the coupling base plate and is in threaded connection with an inner ring of the embedded nylon sleeve, so that the fastener is fixed on a sleeper.
Drawings
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic structural view of a track fastener anti-turbulence structure according to embodiment 1;
FIG. 2 is a schematic view of an embedded nylon sleeve of the anti-lost flow structure of the track fastener in example 1;
FIG. 3 is a schematic view of a coupling pad of the anti-lost flow structure of the track fastener of embodiment 1;
FIG. 4 is a cross-sectional view of a coupling pad of the anti-lost flow structure of the track fastener of example 1;
FIG. 5 is a schematic view of a nylon sleeve of the anti-lost flow structure of the track fastener of example 1;
FIG. 6 is a schematic view of a convex ring of a nylon sleeve of the anti-lost flow structure of the track fastener in example 2;
FIG. 7 is a cross-sectional view of a collar of a nylon sleeve of the anti-lost flow structure of the track fastener of example 2;
FIG. 8 is a schematic structural view of the anti-turbulence structure of the track fastener in embodiment 3;
FIG. 9 is a cross-sectional view of a coupling pad of the anti-lost flow structure of the track fastener of example 3;
FIG. 10 is a schematic view of a coupling pad of the anti-lost flow structure of the track fastener of embodiment 3;
FIG. 11 is a schematic view of a track fastener according to example 5;
marking: 1. embedding nylon sleeve; 101. a counter bore groove; 2. a coupling backing plate; 201. a through hole; 202. countersink; 203. a ring edge; 3. a nylon sleeve; 301. a convex ring; 4. an anchor bolt; 5. distance adjusting buckle plates; 6. a flat gasket; 7. a spring washer; 8. a pad under the plate; 9. an iron cushion block; 10. a buckle; 11. a rail pad; 12. a gage block; 13. and (5) spring strips.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items. All directional indications (such as up, down, left, right, front, rear) in embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular pose (as shown in the drawings), and if the particular pose changes, the directional indication changes accordingly. In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.
Example 1
As shown in fig. 1-5, the embodiment discloses a track fastener anti-lost flow structure, which comprises an embedded nylon sleeve 1 embedded in a sleeper, a coupling backing plate 2 arranged on the surface of the sleeper and a nylon sleeve 3, wherein a counter bore groove 101 for inserting the nylon sleeve 3 is formed in an inner ring of one end, higher than the surface of the sleeper, of the embedded nylon sleeve 1, a through hole 201 is formed in the coupling backing plate 2, a counter bore 202 positioned on the outer ring of the through hole 201 is formed in the lower surface of the coupling backing plate 2, and the counter bore 202 is clamped with the side wall of the counter bore groove 101; the nylon sleeve 3 is inserted into the counter bore groove 101 and clamps the side wall of the through hole with the side wall of the counter bore groove 101 to form a seal.
In the above embodiment, the inner ring of the embedded nylon sleeve 1 is provided with threads for connection with the anchor bolt.
Specifically, the counterbore 202 located at the periphery of the through hole changes the thickness and shape of the through hole sidewall, so that the through hole sidewall is easier to deform and is formed into an elastic edge. When the nylon sleeve 3 is inserted into the counter bore groove 101, the nylon sleeve 3 extrudes the elastic edge and clamps the elastic edge with the side wall of the counter bore groove 101, and correspondingly, the elastic edge coats the side wall of the counter bore groove 101, so that a sealing structure is formed between the embedded nylon sleeve 1 and the coupling backing plate 2, the tightness between the nylon sleeve 3 and the coupling backing plate 2 is improved, and rainwater and impurities cannot enter from the sealing structure, so that the anti-vage effect is realized.
Specifically, the one end that the nylon cover is close to the sleeper is equipped with the chamfer for it is more smooth and easy when the nylon cover extrudes the elastic edge, avoids scratching the elastic edge in extrusion process.
Specifically, the elastic edge is concave towards the center of the through hole and is funnel-shaped.
Specifically, the diameter of the counterbore groove 101 is greater than the outer diameter of the nylon sleeve 3 so that the nylon sleeve 3 may be inserted into the counterbore groove 101.
Specifically, the inner diameter of the through hole 201 is larger than the outer diameter of the nylon sleeve 3, so that the nylon sleeve 3 can be inserted into the counter bore groove 101.
Example 2
The embodiment discloses another track fastener anti-lost flow structure, which comprises an embedded nylon sleeve 1 embedded in a sleeper, a coupling backing plate 2 and a nylon sleeve 3, wherein the coupling backing plate 2 and the nylon sleeve 3 are arranged on the surface of the sleeper, a counter bore groove 101 for inserting the nylon sleeve 3 is formed in one end, higher than the surface of the sleeper, of the embedded nylon sleeve 1, a through hole 201 is formed in the coupling backing plate 2, a counter bore 202 positioned on the outer ring of the through hole 201 is formed in the lower surface of the coupling backing plate 2, and the counter bore 202 is clamped with the side wall of the counter bore groove 101; the nylon sleeve 3 is inserted into the counter bore groove 101 and clamps the side wall of the through hole with the side wall of the counter bore groove 101 to form a seal.
Specifically, the counterbore 202 located at the outer ring of the through hole changes the thickness and shape of the side wall of the through hole, so that the side wall of the through hole is easier to deform, and is formed into an elastic edge, which is the same as that in embodiment 1, and will not be described here again.
In the above embodiment, in order to achieve better sealing, as shown in fig. 6-7, one end of the nylon sleeve 3, which is close to the sleeper, is provided with the convex ring 301, the outer diameter of the convex ring 301 is as smaller than the inner diameter of the counter bore groove 101 as possible, the convex ring 301 is inserted into the counter bore groove 101 to clamp the elastic edge with the side wall of the counter bore groove 101, and correspondingly, the elastic edge coats the side wall of the counter bore groove 101, so that a sealing structure is formed between the embedded nylon sleeve 1 and the coupling backing plate 2, and meanwhile, the tightness between the nylon sleeve 3 and the coupling backing plate 2 is improved, so that rainwater and impurities cannot enter the fastener from the position, and thus the anti-lost flow effect is achieved.
Specifically, the convex ring 301 is provided with a chamfer, so that the nylon sleeve is smoother when extruding the elastic edge, and the elastic edge is prevented from being scratched in the extrusion process.
Example 3
8-10, the embodiment discloses another track fastener anti-lost flow structure, which comprises an embedded nylon sleeve 1 embedded in a sleeper, a coupling backing plate 2 arranged on the surface of the sleeper and a nylon sleeve 3, wherein a counter bore groove 101 for inserting the nylon sleeve 3 is formed in an inner ring of one end, higher than the surface of the sleeper, of the embedded nylon sleeve 1, a through hole 201 is formed in the coupling backing plate 2, a counter bore 202 positioned on the outer ring of the through hole is formed in the lower surface of the coupling backing plate 2, and the counter bore 202 is clamped with the side wall of the counter bore groove 101; the nylon sleeve 3 is inserted into the counter bore groove 101 and clamps the side wall of the through hole with the side wall of the counter bore groove 101 to form a seal.
Specifically, in order to realize better sealing, one side of the side wall of the through hole, which is close to the sleeper, is provided with a ring edge 203 extending towards the center of the through hole, and after the nylon sleeve 3 is inserted into the through hole, the ring edge 203 is pressed tightly, so that a sealing structure is formed, and the anti-vage effect is improved.
In the above embodiment, when the nylon sleeve 3 is inserted into the counter bore groove 101, the nylon sleeve 3 and the side wall of the counter bore groove 101 clamp the side wall of the through hole, one end of the nylon sleeve 3 inserted into the counter bore groove 101 compresses the annular rim 203, and seals are formed among the embedded nylon sleeve 1, the coupling pad 2 and the nylon sleeve 3, so that rainwater and impurities cannot enter the fastener from the place, thereby realizing the anti-lost effect.
Example 4
The embodiment discloses another track fastener anti-lost flow structure, which comprises an embedded nylon sleeve 1 embedded in a sleeper, a coupling backing plate 2 and a nylon sleeve 3, wherein the coupling backing plate 2 and the nylon sleeve 3 are arranged on the surface of the sleeper, a counter bore groove 101 for inserting the nylon sleeve 3 is formed in an inner ring of one end, higher than the surface of the sleeper, of the embedded nylon sleeve 1, a through hole 201 is formed in the coupling backing plate 2, a counter bore 202 positioned on the outer ring of the through hole is formed in the lower surface of the coupling backing plate 2, and the counter bore 202 is clamped with the side wall of the counter bore groove 101; the nylon sleeve 3 is inserted into the counter bore groove 101 and clamps the side wall of the through hole with the side wall of the counter bore groove 101 to form a seal.
Specifically, in order to achieve better sealing, a side of the side wall of the through hole, which is close to the sleeper, is provided with a ring edge 203 extending toward the center of the through hole, and the ring edge 203 is the same as that in embodiment 3, and will not be described herein. The nylon sleeve 3 is provided with a convex ring 301 near one end of the sleeper, the convex ring 301 is inserted into the counter bore groove 101 to clamp the side wall of the through hole with the side wall of the counter bore groove 101, and meanwhile, the convex ring 301 is tightly pressed against the annular edge 203 to form a sealing structure, so that the anti-vage effect is improved, and the convex ring 301 is the same as that in the embodiment 2 and is not repeated here.
Specifically, the outer diameter of the collar 301 is as small as possible less than the inner diameter of the countersink 101.
In the above embodiment, when the nylon sleeve 3 is inserted into the counter bore groove 101, the convex ring 301 and the side wall of the counter bore groove 101 clamp the side wall of the through hole, the convex ring 301 compresses the ring edge, and seals are formed among the embedded nylon sleeve 1, the coupling backing plate 2 and the nylon sleeve 3, so that rainwater and impurities cannot enter the fastener from the embedded nylon sleeve, and the anti-lost flow effect is achieved.
Example 5
As shown in fig. 11, this embodiment discloses a rail fastener, which includes the rail fastener anti-lost motion structure of any one of embodiments 1 to 4, an anchor bolt 4, a distance adjusting buckle 5, an plain washer 6, a spring washer 7, an under-plate pad 8, an iron pad 9, a buckle 10, an under-rail pad 11, a gauge block 12, and a spring bar 13; the elastic strip 13, the gauge block 12, the rail lower base plate 11, the buckle 10, the iron cushion block 9 and the plate lower base plate 8 are sequentially connected, the nylon sleeve 3, the distance adjusting buckle plate 5, the flat washer 6 and the spring washer 7 in the anti-vage structure are sequentially sleeved outside the anchor bolt 4, the anchor bolt 4 penetrates through the through hole 201 on the coupling base plate 2 and is in threaded connection with the inner ring of the embedded nylon sleeve 1, and the rail fastener is fixed on the sleeper.
The present utility model is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical proposal of the present utility model.
Claims (8)
1. The anti-lost flow structure of the track fastener is characterized by comprising a pre-buried nylon sleeve, a coupling backing plate and a nylon sleeve;
the embedded nylon sleeve is vertically embedded in the sleeper, and a counter bore groove for inserting the nylon sleeve is formed in an inner ring of one end of the embedded nylon sleeve, which is higher than the surface of the sleeper;
the coupling backing plate is arranged on the surface of the sleeper, a through hole is formed in the coupling backing plate, a counter bore positioned on the outer ring of the through hole is formed in the lower surface of the coupling backing plate, and the counter bore is clamped with the side wall of the counter bore groove;
the nylon sleeve is inserted into the counter bore groove and clamps the side wall of the through hole with the side wall of the counter bore groove to form a seal.
2. The anti-vage structure of claim 1 wherein the sidewall of the through-hole is a resilient rim recessed toward the center of the through-hole and funnel-shaped.
3. The anti-lost flow structure according to claim 2, wherein the nylon sleeve has a chamfer at an end thereof adjacent to the sleeper.
4. The anti-lost flow structure according to claim 1, wherein one side of the side wall of the through hole, which is close to the sleeper, is a ring edge, and one end of the nylon sleeve, which is inserted into the through hole, compresses the ring edge.
5. The anti-lost flow structure according to claim 2 or 4, wherein a convex ring is arranged at one end of the nylon sleeve, which is close to the sleeper, and the outer diameter of the convex ring is smaller than the inner diameter of the counter bore groove, and the convex ring and the side wall of the counter bore groove clamp the side wall of the through hole to form a seal.
6. The anti-lost flow structure of claim 1 wherein the counter bore groove has an inner diameter greater than an outer diameter of the nylon sleeve.
7. The anti-vage structure according to claim 1, wherein the inner diameter of the through hole is larger than the outer diameter of the nylon sleeve.
8. A track fastener comprising the track fastener anti-lost motion structure of any one of claims 1-7, anchor bolts, distance adjusting buckle plates, plain washers, spring washers, plate-under-the-plate pads, iron pads, buckles, rail-under-the-plate pads, gauge blocks, and spring strips; the method is characterized in that: the anti-lost flow rail fastener comprises a spring strip, a gauge block, a rail lower base plate, a buckle, an iron cushion block and a plate lower base plate, wherein the nylon sleeve in the anti-lost flow structure, the gauge buckle, a flat washer and a spring washer are sequentially sleeved outside an anchor bolt in the anti-lost flow structure of the rail fastener, and the anchor bolt penetrates through a through hole in the coupling base plate and is in threaded connection with an inner ring of the embedded nylon sleeve, so that the fastener is fixed on a sleeper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320163634.3U CN219808181U (en) | 2023-01-17 | 2023-01-17 | Track fastener anti-vagus flow structure and track fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320163634.3U CN219808181U (en) | 2023-01-17 | 2023-01-17 | Track fastener anti-vagus flow structure and track fastener |
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| Publication Number | Publication Date |
|---|---|
| CN219808181U true CN219808181U (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320163634.3U Active CN219808181U (en) | 2023-01-17 | 2023-01-17 | Track fastener anti-vagus flow structure and track fastener |
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| CN (1) | CN219808181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117966523A (en) * | 2024-04-01 | 2024-05-03 | 北京铁科首钢轨道技术股份有限公司 | Damping fastener assembly for urban suburban railway and urban rail transit |
-
2023
- 2023-01-17 CN CN202320163634.3U patent/CN219808181U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117966523A (en) * | 2024-04-01 | 2024-05-03 | 北京铁科首钢轨道技术股份有限公司 | Damping fastener assembly for urban suburban railway and urban rail transit |
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