CN111304971A - Double-deck damping fastener of low height - Google Patents
Double-deck damping fastener of low height Download PDFInfo
- Publication number
- CN111304971A CN111304971A CN202010190114.2A CN202010190114A CN111304971A CN 111304971 A CN111304971 A CN 111304971A CN 202010190114 A CN202010190114 A CN 202010190114A CN 111304971 A CN111304971 A CN 111304971A
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- Prior art keywords
- plate
- supporting seat
- fastener
- hole
- insulating
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
- E01B9/44—Fastening the rail on the tie-plate
- E01B9/46—Fastening the rail on the tie-plate by clamps
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
Abstract
The invention relates to a low-height double-layer vibration-damping fastener which comprises an upper bottom plate, an anchoring bolt, an elastic strip, an elastic insulating pad under a rail, a supporting seat, a pressing insulating sleeve, a pressing cover plate and an elastic insulating pad under the plate, wherein the supporting seat is arranged on the upper bottom plate; the lower base plate of the common fastener is simplified into the bottom supporting seat, so that the area and the mass of the lower base plate are greatly reduced, and the cost of the fastener is reduced. Meanwhile, the fastener does not need self-locking, so that the disassembly is extremely convenient. In addition, after the technical scheme is adopted, the pressing force of the fastener is adjustable, the adaptive capacity of the fastener is improved, and errors caused by processing, manufacturing and long-term operation of the fastener are conveniently eliminated.
Description
The application is a divisional application with the application number of CN201611042880.4 and the name of the invention being a low-height double-layer damping fastener, which is proposed at 2016, 11, 24.
Technical Field
The invention relates to the technical field of urban rail transit, in particular to a low-height double-layer vibration-damping fastener.
Background
In rail fastener systems, commonly used fasteners are single-deck fasteners and double-deck fasteners, both of which include under-rail and under-deck resilient pads. The single-layer bottom plate is only provided with one layer of bottom plate, and the fastener is light in weight and low in cost; however, when the single-layer bottom plate fastener is used, the anchor bolt presses the elastic cushion through the fastener bottom plate to fix the fastener, so that the vibration damping performance of the elastic cushion layer under the plate cannot be fully exerted.
The common double-layer bottom plate vibration attenuation fastener comprises two layers of bottom plates, namely a lower bottom plate and an upper bottom plate, wherein a lower elastic cushion is clamped between the upper bottom plate and the lower bottom plate through a self-locking structure; when the double-layer bottom plate vibration attenuation fastener is used, the anchor bolt fixes the fastener through the lower bottom plate of the fastener. Thus, although the damping performance of the elastic cushion layer under the fastener plate can be fully exerted, most area of the lower base plate in the use of the fastener only plays a role of the elastic cushion layer under the support plate, and the fastener belongs to a strength redundancy part, so that the whole weight of the fastener is larger, and the cost is higher. Meanwhile, in order to realize the connection of the upper base plate and the lower base plate, the common double-layer base plate vibration attenuation fastener usually adopts various self-locking structures which are difficult to disassemble, and once the fastener needs to be maintained, the fastener can be disassembled only by destroying the self-locking structures, so that the disassembling process is troublesome. In addition, the self-locking structure between the upper base plate and the lower base plate of the common double-layer base plate vibration-damping fastener is usually made of non-metal materials, after long-term operation, the non-metal material part of the self-locking structure of the fastener is easy to wear, so that the locking force between the upper base plate and the lower base plate of the fastener is insufficient, even gaps can be formed among the upper base plate, the lower base plate and the base plate elastic cushion layer, and hidden dangers are brought to the driving safety of a train.
In addition, the common double-layer damping fastener has a high installation height and relatively poor anti-tipping capability due to the fact that the common double-layer damping fastener is provided with the two layers of bottom plates, and the installation height of the common double-layer damping fastener is higher than that of the common single-layer fastener, so that height transition is usually needed, and inconvenience is brought to design and construction.
Disclosure of Invention
Aiming at the problems that the existing common double-layer damping fastener is high in installation height, relatively poor in anti-overturning capacity, generally needs height transition, brings inconvenience to design and construction and the like, the invention provides the low-height double-layer damping fastener.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a low-height double-layer vibration-damping fastener comprises an upper base plate, an anchoring bolt, an elastic strip, a lower elastic insulating pad, a supporting seat, a pressing insulating sleeve, a pressing cover plate and a lower elastic insulating pad; the supporting seat is provided with a base and a boss, and a through hole is formed in the middle of the supporting seat; the upper base plate is provided with a through hole matched with the supporting seat boss, and the supporting seat boss penetrates through the through hole of the upper base plate; the compression insulating sleeve is provided with a limiting upright post and an upper eave, and the middle part of the compression insulating sleeve is provided with a through hole; the compression insulating sleeve penetrates through the through hole of the upper base plate and is sleeved on the supporting seat boss, and the upper brim of the compression insulating sleeve is buckled and pressed on the upper part of the upper base plate; the outer surface of a boss of the supporting seat is matched with the inner surface of a through hole of the compression insulating sleeve, and the outer surface of a limiting upright post of the compression insulating sleeve is matched with the through hole of the upper bottom plate; the anchor bolt passes through the through hole of the pressing cover plate and fastens the upper bottom plate, the elastic insulating pad under the plate and the supporting seat on the track bed or the sleeper and generates pressing force on the elastic insulating pad under the plate.
And an adjusting gasket is arranged between the pressing insulating sleeve and the upper base plate or between the pressing insulating sleeve and the pressing cover plate, and the pressing force is adjusted by changing the total thickness of the adjusting gasket.
A group of positioning holes are formed in the elastic insulating pad under the plate, positioning protrusions corresponding to the positioning holes of the elastic insulating pad under the plate are arranged on the lower portion of the upper bottom plate, and the positioning protrusions of the upper bottom plate penetrate into the positioning holes of the elastic insulating pad under the plate; or a group of positioning bulges are arranged on the elastic insulating pad under the plate, positioning holes corresponding to the positioning holes of the elastic insulating pad under the plate are arranged at the lower part of the upper bottom plate, and the positioning bulges on the elastic insulating pad under the plate penetrate into the positioning holes of the upper bottom plate of the plate; or, a through hole is arranged on the elastic insulating pad under the plate, and the supporting seat base penetrates through the through hole of the elastic insulating pad under the plate.
The number of the through holes on the upper bottom plate is 2, and the through holes are arranged on the upper bottom plate in an oblique diagonal or transverse symmetrical manner; the number of the supporting seats is 2; the number of the compression insulating sleeves is 2.
The number of the through holes on the upper bottom plate is 4, and the through holes are symmetrically arranged on the upper bottom plate; the number of the supporting seats is 4; the number of the compression insulating sleeves is 4.
The base of the supporting seat is circular, oval or rectangular, and the outer surface of the upright post of the supporting seat is circular; the inner surface of the compression insulating sleeve is in a shape matched with the outer surface of the supporting seat upright post, and the outer surface of the transverse limiting upright post of the compression insulating sleeve is round, oval or rectangular; the upper bottom plate through hole is in a shape matched with the outer surface of the transverse limiting upright post of the compression insulating sleeve.
The lower part of the supporting seat is provided with insulating coupling plates, and the number of the insulating coupling plates is the same as that of the supporting seat; or the lower parts of the elastic insulating pad and the supporting seat under the plate are provided with an insulating coupling plate, and the number of the insulating coupling plates is one.
The invention has the beneficial effects that:
the low-height double-layer vibration-damping fastener simplifies the lower bottom plate of a common fastener into two bottom supporting seats, thereby greatly reducing the area and the quality of the lower bottom plate and reducing the cost of the fastener. Meanwhile, the fastener does not need self-locking, so that the disassembly is extremely convenient. In addition, after adopting above-mentioned technical scheme, fastener clamping force is adjustable, has improved the adaptability of fastener, is convenient for eliminate the error that fastener manufacturing and long-term operation brought. By adopting the technical scheme, the mounting height of the fastener can be reduced, so that the mounting height of the fastener is consistent with that of a common single-layer fastener.
Drawings
FIG. 1 is a first half sectional view of the structure of the present invention;
FIG. 2 is an attachment view of a first dual-layer vibration damping fastener of the present invention;
FIG. 3 is a first schematic view of a first upper base plate according to the present invention;
FIG. 4 is a schematic view of a first compression insulator sleeve of the present invention;
FIG. 5 is a schematic view of a first supporting seat of the present invention;
FIG. 6 is a schematic view of a first compression cover of the present invention;
FIG. 7 is a second schematic view of a first upper base plate according to the present invention;
FIG. 8 is a schematic view of a second compression insulator sleeve of the present invention;
FIG. 9 is a schematic view of a second supporting seat of the present invention;
FIG. 10 is a schematic view of a second compression cover of the present invention;
FIG. 11 is a schematic view of a second upper plate of the present invention;
FIG. 12 is a top view of a second double layer vibration damping fastener of the present invention;
FIG. 13 is a second half sectional view of the present invention;
FIG. 14 is a schematic view of the structure of the elastic insulating pad of the base plate of the present invention;
reference numerals: 1. elastic strip, 2, gauge block, 3, upper base plate, 3a, upper base plate with round through hole and diagonal arrangement, 3b, upper base plate with square through hole and symmetrical arrangement, 3.1, upper base plate through hole, 3.1.1, inner surface of upper base plate through hole, 3.3, upper surface of upper base plate, 3.4, upper base plate positioning projection, 4, elastic insulating pad under plate, 4.1, elastic insulating pad through hole under plate, 4.1.1, inner surface of elastic insulating pad positioning hole under plate, 4.3, elastic insulating pad positioning hole under plate, 5, pressing insulating sleeve, 5a, pressing insulating sleeve with round through hole inner surface and round outer surface of vertical limiting column, 5b, pressing insulating sleeve with square inner surface and vertical outer surface of vertical limiting column, 5.1, pressing insulating sleeve vertical pressing edge, 5.1.1, pressing edge lower bottom surface, 5.1.2, and pressing insulating sleeve vertical pressing top surface, 5.2, compress tightly the horizontal spacing stand of insulating boot, 5.2.1, compress tightly the horizontal spacing stand surface of insulating boot, 5.3, compress tightly the insulating boot through-hole, 5.3.1, compress tightly insulating boot through-hole internal surface, 6, compress tightly the apron, 6a, circular compress tightly the apron, 6b, square compress tightly the apron, 6.1, compress tightly the apron through-hole, 7, a supporting seat, 7a, boss surface and base are the supporting seat of circular, 7b, boss surface and base are square supporting seat, 7.1, the supporting seat base, 7.2, the supporting seat through-hole, 7.3, the supporting seat boss, 7.3.1, supporting seat boss surface, 7.3.2, supporting seat boss upper surface, 8, the anchor bolt, 9, elastic insulation pad under the rail, 10, the adjusting shim, 11, the insulating coupling board.
Detailed Description
The invention is further illustrated with reference to specific embodiments below.
Example 1
Referring to fig. 1 and 2, the double-layer vibration-damping fastener includes an upper base plate 3, a support base 7, a compression insulating sleeve 5, a compression cover plate 6, an anchor bolt 8, an elastic strip 1, an under-rail elastic insulating pad 9, an under-plate elastic insulating pad 4, an insulating gauge block 2, and an adjusting gasket 10. With reference to fig. 3, the upper base plate 3a with circular through holes and diagonally arranged is provided with upper base plate through holes 3.1; with reference to fig. 5, the support seat 7a with the circular outer surface of the boss and the circular base comprises a support seat boss 7.3 and a support seat base 7.1, and the support seat 7a with the circular outer surface of the boss and the circular base is provided with a support seat through hole 7.2; referring to fig. 4, the compression insulating sleeve 5 comprises a vertical compression flange 5.1 and a transverse limiting upright post 5.2, and a compression insulating sleeve through hole 5.3 is arranged on a compression insulating sleeve 5a with a circular inner surface of the through hole and a circular outer surface of the longitudinal limiting upright post; referring to fig. 14, a lower elastic insulating pad through hole 4.1 is formed in the lower elastic insulating pad 4, and the position of the lower elastic insulating pad through hole 4.1 corresponds to the position of the upper bottom plate through hole 3.1.
Referring to fig. 1, the outer surface 7.3.1 of the boss of the supporting seat is matched with the inner surface 5.3.1 of the through hole of the compression insulating sleeve, the outer surface 5.2.1 of the transverse limiting upright post of the compression insulating sleeve is matched with the inner surface 3.1.1 of the through hole of the upper base plate, the anchor bolt 8 passes through the through hole 6.1 of the compression cover plate and the through hole 7.2 of the supporting seat, and the base 7.1 of the supporting seat passes through the through hole 4.1 of the elastic insulating; the lower surface of the pressing cover plate 6 is matched with the upper top surface 7.3.2 of the supporting seat upright column and the top surface 5.1.2 of the vertical pressing edge of the pressing insulating sleeve, and the lower bottom surface 5.1.1 of the vertical pressing edge of the pressing insulating sleeve is matched with the upper surface 3.3 of the upper bottom plate; the anchor bolt 8 compresses tightly insulating cover 5, upper plate 3, elastic insulating pad 4 under the board through compressing tightly apron 6 in proper order, produces the packing force to elastic insulating pad 4 under the board.
With reference to fig. 3, 2 upper plate through holes 3.1 are provided, and the upper plate through holes 3.1 are arranged diagonally on an upper plate 3a in which the through holes are circular and diagonally arranged; the number of the lower elastic insulation pad through holes 4.1 is 2, and the positions of the lower elastic insulation pad through holes 4.1 correspond to the positions of the upper bottom plate through holes 3.1; the number of the supporting seats 7a with the circular outer surfaces of the bosses and the circular base is 2; the number of the compression insulating sleeves 5a which are round in the inner surface of the through hole and round in the outer surface of the longitudinal limiting upright post is 2.
Referring to fig. 7 and 14, a group of lower elastic insulating pad positioning holes 4.3 are formed in the lower elastic insulating pad, upper plate positioning protrusions 3.4 corresponding to the lower elastic insulating pad positioning holes 4.3 are formed in the lower portion of the upper plate, and the upper plate positioning protrusions 3.4 penetrate into the lower elastic insulating pad positioning holes 4.3, so that longitudinal and transverse displacements of the lower elastic insulating pad are limited.
Referring to fig. 5, the support base 7.1 is circular, and the outer surface 7.3.1 of the support boss is circular; with reference to fig. 4, the inner surface 5.3.1 of the through hole of the compression insulating sleeve is in a circular shape matched with the outer surface 7.3.1 of the boss of the supporting seat, and the outer surface 5.2.1 of the transverse limiting upright post of the compression insulating sleeve is in a circular shape; with reference to fig. 3, the upper base plate through hole 3.1 is circular and matched with the outer surface 5.2.1 of the transverse limiting upright post of the compression insulating sleeve, and the outer diameter of the supporting seat base 7.1 is larger than the inner diameter of the upper base plate through hole 3.1; the through hole 4.1 of the elastic insulating pad under the plate is circular; referring to fig. 6, the outer surface of the circular pressing cover plate 6a is circular.
The pressing force of the elastic insulating pad 4 under the double-layer vibration-damping fastener plate can be adjusted. Referring to fig. 1, the adjusting pad 10 is located between the pressing insulating sleeve 5 and the upper base plate 3, the pressing force is increased by increasing the number of layers or thickness of the adjusting pad 10, and the pressing force is decreased by decreasing the number of layers or thickness of the adjusting pad 10.
Referring to fig. 1, the lower portion of the supporting seat is provided with 2 insulating coupling plates, and the number of the insulating coupling plates is the same as that of the supporting seat.
Example 2
Referring to fig. 12 and 13, the double-layer vibration-damping fastener includes an upper base plate 3, a support base 7, a pressing insulating sleeve 5, a pressing cover plate 6, an anchor bolt 8, an elastic strip 1, an under-rail elastic insulating pad 9, an under-plate elastic insulating pad 4, an insulating gauge block 2, and an adjusting gasket 10. With reference to fig. 11, the upper base plate 3b with square through holes and symmetrical arrangement is provided with upper base plate through holes 3.1; with reference to fig. 9, the support seat 7b with the square boss outer surface and the square base comprises a support seat boss 7.3 and a support seat base 7.1, and the support seat 7b with the square boss outer surface and the square base is provided with a support seat through hole 7.2; with reference to fig. 8, the compressing insulation sleeve 5b with the square inner surface of the through hole and the square outer surface of the longitudinal limiting upright post comprises a compressing insulation sleeve vertical compressing edge 5.1 and a compressing insulation sleeve horizontal limiting upright post 5.2, and the compressing insulation sleeve through hole 5.3 is arranged on the compressing insulation sleeve 5b with the square inner surface of the through hole and the square outer surface of the longitudinal limiting upright post.
Referring to fig. 13, the outer surface 7.3.1 of the boss of the support seat is matched with the inner surface 5.3.1 of the through hole of the compression insulating sleeve, the outer surface 5.2.1 of the compression insulating transverse limiting upright post is matched with the through hole 3.1 of the upper base plate, the anchor bolt 8 passes through the through hole 6.1 of the compression cover plate and the through hole 7.2 of the boss of the support seat, and the base 7.1 of the support seat passes through the through hole 4.1 of the elastic insulating pad of; the lower surface of the pressing cover plate 6 is matched with the upper top surface 7.3.2 of the boss of the supporting seat and the top surface 5.1.2 of the vertical pressing edge of the pressing insulating sleeve, and the lower bottom surface 5.1.1 of the vertical pressing edge of the pressing insulating sleeve is matched with the upper surface 3.3 of the upper bottom plate; the anchor bolt 8 compresses tightly insulating cover 5, upper plate 3, elastic insulating pad 4 under the board through compressing tightly apron 6 in proper order, produces the packing force to elastic insulating pad 4 under the board.
With reference to fig. 11, 2 upper plate through holes 3.1 are provided, and the upper plate through holes 3.1 are symmetrically arranged on an upper plate 3b in which the through holes are square and symmetrically arranged; the number of the lower elastic insulation pad through holes 4.1 is 2, and the positions of the lower elastic insulation pad through holes 4.1 correspond to the positions of the upper bottom plate through holes 3.1; the number of the supporting seats 7b with the square outer surfaces of the bosses and the square base is 2; the number of the compression insulating sleeves 5b which are square on the inner surface of the through hole and square on the outer surface of the longitudinal limiting upright post is 2.
Referring to fig. 9, the support base 7.1 is square, and the outer surface 7.3.1 of the support boss is square; with reference to fig. 8, the inner surface 5.3.1 of the through hole of the compression insulating sleeve is square matched with the outer surface 7.3.1 of the supporting boss of the supporting seat, and the outer surface 5.2.1 of the transverse limiting upright post of the compression insulating sleeve is square; with reference to fig. 8, the upper bottom plate through hole 3.1 is square matched with the outer surface 5.2.1 of the transverse limiting upright post of the compression insulating sleeve, and the side length of the supporting seat base 7.1 is larger than that of the upper bottom plate through hole 3.1; the through hole 4.1 of the elastic insulating pad under the plate is square; with reference to fig. 10, the outer surface of the square pressing cover plate 6b is square.
The pressing force of the elastic insulating pad 4 of the double-layer damping fastener bottom plate can be adjusted. Referring to fig. 12, the adjusting shim 10 is located between the pressing insulating sleeve 5 and the pressing cover plate 6, the pressing force is increased by increasing the number of layers or thickness of the adjusting shim 10, and the pressing force is decreased by decreasing the number of layers or thickness of the adjusting shim 10.
Referring to fig. 12, an insulating coupling plate is disposed under the elastic insulating pad and the supporting base.
Claims (7)
1. The utility model provides a double-deck damping fastener of low height, this fastener include elastic insulation pad under upper plate, anchor bolt, bullet strip and the rail, its characterized in that: the device is also provided with a supporting seat, a pressing insulating sleeve, a pressing cover plate, a lower elastic insulating pad and an insulating coupling plate; the supporting seat is provided with a base and a boss, and a through hole is formed in the middle of the supporting seat; the upper base plate is provided with a through hole matched with the supporting seat boss, and the supporting seat boss penetrates through the through hole of the upper base plate; the compression insulating sleeve is provided with a limiting upright post and an upper eave, and the middle part of the compression insulating sleeve is provided with a through hole; the compression insulating sleeve penetrates through the through hole of the upper base plate and is sleeved on the supporting seat boss, and the upper brim of the compression insulating sleeve is buckled and pressed on the upper part of the upper base plate; the outer surface of a boss of the supporting seat is matched with the inner surface of a through hole of the compression insulating sleeve, the outer surface of a limiting upright post of the compression insulating sleeve is matched with the through hole of the upper bottom plate, and the side length or the outer diameter of a base of the supporting seat is larger than the inner diameter of the through hole of the upper bottom plate; the anchor bolt passes through the through hole of the pressing cover plate and fastens the upper bottom plate, the elastic insulating pad under the plate and the supporting seat on the track bed or the sleeper and generates pressing force on the elastic insulating pad under the plate.
2. The low-height, double-layer, vibration-damped fastener of claim 1 wherein: and an adjusting gasket is arranged between the pressing insulating sleeve and the upper base plate or between the pressing insulating sleeve and the pressing cover plate, and the pressing force is adjusted by changing the total thickness of the adjusting gasket.
3. The low-height, double-layer, vibration-damped fastener of claim 1 wherein: a group of positioning holes are formed in the elastic insulating pad under the plate, positioning protrusions corresponding to the positioning holes of the elastic insulating pad under the plate are arranged on the lower portion of the upper bottom plate, and the positioning protrusions of the upper bottom plate penetrate into the positioning holes of the elastic insulating pad under the plate; or a group of positioning bulges are arranged on the elastic insulating pad under the plate, positioning holes corresponding to the positioning holes of the elastic insulating pad under the plate are arranged at the lower part of the upper bottom plate, and the positioning bulges on the elastic insulating pad under the plate penetrate into the positioning holes of the upper bottom plate of the plate; or, be equipped with the through-hole on the elastic insulation pad under the board, the supporting seat base passes elastic insulation pad through-hole under the board.
4. The low-height, double-layer, vibration-damped fastener of claim 1 wherein: the number of the through holes on the upper bottom plate is 2, and the through holes are arranged on the upper bottom plate in an oblique diagonal or transverse symmetrical manner; the number of the supporting seats is 2; the number of the compression insulating sleeves is 2.
5. The low-height, double-layer, vibration-damped fastener of claim 1 wherein: the number of the through holes on the upper bottom plate is 4, and the through holes are symmetrically arranged on the upper bottom plate; the number of the supporting seats is 4; the number of the compression insulating sleeves is 4.
6. The low-height, double-layer, vibration-damped fastener of claim 1 wherein: the base of the supporting seat is circular, oval or rectangular, and the outer surface of the upright post of the supporting seat is circular; the inner surface of the compression insulating sleeve is in a shape matched with the outer surface of the supporting seat upright post, and the outer surface of the transverse limiting upright post of the compression insulating sleeve is round, oval or rectangular; the upper bottom plate through hole is in a shape matched with the outer surface of the transverse limiting upright post of the compression insulating sleeve.
7. The low-height, double-layer, vibration-damped fastener of claim 1 wherein: the lower part of the supporting seat is provided with insulating coupling plates, and the number of the insulating coupling plates is the same as that of the supporting seats; or the lower parts of the elastic insulating pad and the supporting seat under the plate are provided with one insulating coupling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190114.2A CN111304971A (en) | 2016-11-24 | 2016-11-24 | Double-deck damping fastener of low height |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190114.2A CN111304971A (en) | 2016-11-24 | 2016-11-24 | Double-deck damping fastener of low height |
| CN201611042880.4A CN107227660A (en) | 2016-11-24 | 2016-11-24 | A kind of double-layer vibration damping fastener of low clearance |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611042880.4A Division CN107227660A (en) | 2016-11-24 | 2016-11-24 | A kind of double-layer vibration damping fastener of low clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111304971A true CN111304971A (en) | 2020-06-19 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611042880.4A Pending CN107227660A (en) | 2016-11-24 | 2016-11-24 | A kind of double-layer vibration damping fastener of low clearance |
| CN202010190114.2A Pending CN111304971A (en) | 2016-11-24 | 2016-11-24 | Double-deck damping fastener of low height |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611042880.4A Pending CN107227660A (en) | 2016-11-24 | 2016-11-24 | A kind of double-layer vibration damping fastener of low clearance |
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| CN (2) | CN107227660A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505202A (en) * | 2017-09-14 | 2019-03-22 | 洛阳双瑞橡塑科技有限公司 | A kind of double-layer vibration damping fastener |
| CN107700285A (en) * | 2017-10-25 | 2018-02-16 | 株洲时代新材料科技股份有限公司 | Rail fastener system and its insulating method |
| GB2572413B (en) * | 2018-03-29 | 2022-05-18 | Pandrol Ltd | An anchoring assembly for fastening a railway rail to an underlying foundation |
| CN112695573A (en) * | 2021-01-08 | 2021-04-23 | 株洲时代新材料科技股份有限公司 | Track vibration damper |
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