CN207244357U - A kind of double-layer vibration damping fastener of low clearance - Google Patents
A kind of double-layer vibration damping fastener of low clearance Download PDFInfo
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- CN207244357U CN207244357U CN201721109132.3U CN201721109132U CN207244357U CN 207244357 U CN207244357 U CN 207244357U CN 201721109132 U CN201721109132 U CN 201721109132U CN 207244357 U CN207244357 U CN 207244357U
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Abstract
The utility model discloses a kind of double-layer vibration damping fastener of low clearance, the fastener includes anchor bolt (8), plate underlay (4), the plate underlay (4), which is floated, is equipped with bottom plate (3), and rail underlay (9) is equipped with the upside of the bottom plate (3)；The fastener includes support base (7)；The support base (7) is in the form of a column；Interstage sleeve (5) is socketed with the outside of the support base (7), the interstage sleeve (5) is equipped with cover board (6), and the anchor bolt (8) sequentially passes through cover board (6), interstage sleeve (5), support base (7) and plate underlay (4) and fastener is fixed on sleeper；The bottom plate (3) is equipped with first through hole (3.1), and the first through hole (3.1) keeps aperture is constant to run through bottom plate (3), support base (7) is provided with the first through hole (3.1)；The fastener structures that the utility model is proposed are simple, reduce the cost of fastener, and dismounting is extremely convenient, adaptable, and safety guarantee is high.
Description
Technical field
The utility model belongs to technical field of rail traffic, specifically proposes a kind of double-layer vibration damping fastener of low clearance.
Background technology
It is unichassis fastener and double walled floor fastener in the common fastener of urban track traffic, both of which includes bullet under rail
Cushion under property pad and plate.Unichassis only has one layer of bottom plate, and fastener is light-weight, and cost is low；But unichassis fastener makes
Used time, compresses cushion while anchor bolt is fixed fastener by fastener bottom plate, causes subtracting for elastic insert under plate
Performance of shaking can not give full play to.
Common double walled floor Damping fastening contains two layers of bottom plate, respectively lower plate and upper plate, upper plate and bottom
Cushion under plate is clamped by self-locking structure between plate；When in use, anchor bolt passes through fastener to double walled floor Damping fastening
Lower plate fixes fastener.In this way, although the damping property of elastic insert under fastener plate can be given full play to, in fastener use under
Most of area of bottom plate only plays the role of elastic insert under support plate, belongs to intensity redundancy section, causes fastener entirety
Weight is larger, cost is higher.Meanwhile general dual layer bottom plate Damping fastening is to realize the connection of upper plate and lower plate, usually
Using various self-locking structures not easy to remove, once fastener needs repairing, it is necessary to which self-locking structure, which is destroyed, could realize that fastener is torn open
Unload, disassembly process is cumbersome.In addition, the self-locking structure between general dual layer bottom plate Damping fastening upper plate and lower plate is often adopted
With nonmetallic materials, after long-term operation, the nonmetallic materials part of fastener self-locking structure is easily worn, and is caused on fastener
Coupling mechanism force between bottom plate and lower plate is inadequate, and gap even occurs between upper plate, lower plate and bottom plate elastic insert, gives
The traffic safety of train brings hidden danger.
A kind of Damping fastening of the prior art, including support rail plate, support rail plate lower section are equipped with elastic insulated pad under plate；Also wrap
Damping assembly is included, damping assembly includes support base, holddown plate, compressing structure and anchor bolt；Support base be equipped with base and
Support post, base are arranged under plate in the through hole of elastic insulated pad and base top insertion groove, base top and groove top
The cavity for being used for elastic insulated pad under vertical pressure strip is equipped between wall；Support post is set to prolong through support rail plate through hole and top
Extend above support rail plate；Compressing structure top is set higher than support post top, tightens or unscrews anchor bolt and be set to adjustment and subtracts
Shake the thrust of component；This application involves but be not limited to field of track traffic, can effectively overcome the prior art using the application
Present in defect, can realize the structure optimization of Damping fastening, can be on the premise of double-layer vibration damping fastener vibration damping amount be kept
Cost of manufacture is greatly reduced, the disassembly efficiency of component can be effectively improved.
Since above-mentioned fastener system needs especially to set groove to accommodate support base top to coordinate on support rail plate.In support rail
Groove is set to cause thickness of the support rail plate in the region to reduce on plate, and then intensity decreases.And fastener in railway technology field
The mainly fixed rail of effect, and the intensity that rail depends on the region is fixed, furthermore in railway engineering application, due to stress
Dynamic and lack of uniformity, the integral strength of contacting piece and stability requirement are high.Groove is set to meet on support rail plate
Requirement is stated, it is perhaps feasible at the beginning of use, but under the unbalanced operating mode of this dynamic of railway, its service life is reduced, Jin Erzeng
Maintenance cost is added；The fastener of another aspect said structure easily fails, and causes security risk.
In view of this, the utility model is proposed.
The content of the invention
The purpose of this utility model is to provide a kind of double-layer vibration damping fastener of low clearance, to solve the above problems.
In order to realize the goal of the invention, the utility model adopts the following technical solution：
A kind of double-layer vibration damping fastener of low clearance, the fastener include anchor bolt, plate underlay, floating on the plate underlay
There is bottom plate, rail underlay is equipped with the upside of the bottom plate；The fastener includes support base, and the support base is in the form of a column；The support base
Outside is socketed with interstage sleeve, and the interstage sleeve is equipped with cover board, and the anchor bolt is sequentially passed through under cover board, interstage sleeve, support base and plate
Fastener is fixed on sleeper by pad；The bottom plate is equipped with first through hole, and the first through hole keeps that aperture is constant to run through bottom plate,
Support base is installed in the first through hole.
Preferably, the support base is equipped with fourth hole, and the fourth hole runs through the second column.
Preferably, the interstage sleeve includes compression ring and the first column, and the interstage sleeve is equipped with the second through hole, and described second is logical
The first column and compression ring are run through in hole.
Preferably, first column is installed in first through hole, and the compression ring is withheld on bottom plate.
Preferably, support base is installed in the second through hole of the interstage sleeve.
Preferably, the compression ring of the support base and interstage sleeve is total to end face, and the cover board is in flat annular, and the cover board is withheld
On the shared end face of support base and compression ring.
Preferably, the upper surface of the support base is less than the compression ring upper surface of interstage sleeve, and the cover board is included in step-like
The substrate and bulge loop being connected as one, the bulge loop are withheld in the second through hole, and the substrate is withheld in compression ring upper surface.
Preferably, the upper surface of the support base is higher than the compression ring upper surface of interstage sleeve, and the cover board includes substrate and recessed
Cheat, at least accommodating portion support base, the substrate is withheld in compression ring upper surface in the pit.
Preferably, adjusting gasket is set between the bulge loop of the support base and cover board.
Preferably, the plate underlay is equipped with location hole, and the bottom plate lower surface is conformed with, the projection and location hole
It is engaged, prevents plate underlay from moving.
Beneficial effect
The utility model proposes a kind of low clearance double-layer vibration damping fastener, and the Damping fastening is by general dual layer vibration damping button
The lower plate of part is reduced to two bottom support bases, so as to greatly reduce the area and quality of lower plate, reduces the cost of fastener.
Simultaneously as fastener is not required to self-locking, dismounting is extremely convenient.In addition, after adopting the above technical scheme, fastener thrust adjusts,
The adaptability of fastener is improved, easy to eliminate fastener processing and manufacturing and run the error brought for a long time.Furthermore the utility model
In flat bottom plate on be arranged to through hole, other area thickness keep uniform, it ensure that the intensity of bottom plate, is extended
The service life of fastener, adds the stability of fastener, so as to improve safety guarantee.
Brief description of the drawings
Fig. 1：For the half sectional view of the utility model low clearance double-layer vibration damping fastener；
Fig. 2：For the base arrangement schematic diagram of the utility model low clearance double-layer vibration damping fastener；
Fig. 3：For the support base schematic diagram of the utility model low clearance double-layer vibration damping fastener embodiment one；
Fig. 4：For the profile of Fig. 3 support bases；
Fig. 5：For the schematic diagram of the interstage sleeve of the utility model low clearance double-layer vibration damping fastener；
Fig. 6：For the profile of Fig. 5 interstage sleeves；
Fig. 7：For the covering plate structure schematic diagram of the utility model low clearance double-layer vibration damping fastener embodiment one；
Fig. 8：For the first local structure view of the utility model low clearance double-layer vibration damping fastener embodiment one；
Fig. 9：For second of partial structural diagram of the embodiment one of the utility model low clearance double-layer vibration damping fastener；
Figure 10：For the support base schematic diagram of the embodiment two of the utility model low clearance double-layer vibration damping fastener；
Figure 11：For the profile of Figure 10 support bases；
Figure 12：For the first local structure view of the embodiment two of the utility model low clearance double-layer vibration damping fastener；
Figure 13：For second of local structure view of the embodiment two of the utility model low clearance double-layer vibration damping fastener；
Figure 14：For the covering plate structure schematic diagram of the embodiment three of the utility model low clearance double-layer vibration damping fastener；
Figure 15：For the profile of Figure 14 cover boards；
Figure 16：For the first local structure view of the embodiment three of the utility model low clearance double-layer vibration damping fastener；
Figure 17：For second of local structure view of the embodiment three of the utility model low clearance double-layer vibration damping fastener；
Figure 18：For the covering plate structure schematic diagram of the example IV of the utility model low clearance double-layer vibration damping fastener；
Figure 19：For the profile of Figure 18 cover boards；
Figure 20：For the local structure view of the example IV of the utility model low clearance double-layer vibration damping fastener；
Figure 21：For the clamping support schematic diagram of the embodiment five of the utility model low clearance double-layer vibration damping fastener；
Figure 22：For the base arrangement schematic diagram of the embodiment five of the utility model low clearance double-layer vibration damping fastener；
Figure 23：For the local structure view of the embodiment five of the utility model low clearance double-layer vibration damping fastener.
Description of reference numerals
Further clearly to illustrate the connection relation between the structure of the utility model and each component, give following attached
Icon is remembered, and is illustrated.
Spring 1, track gauge block 2, bottom plate 3, plate underlay 4, shelves set 5, cover board 6, support base 7, anchor bolt 8, rail underlay 9, is adjusted
Gasket 10 is saved, first through hole 3.1, protrusion 3.2, compression ring 5.1, the first lower surface 5.1.1, the first upper surface 5.1.2, first is vertical
Column 5.2, the first outer surface 5.2.1, the second through hole 5.3, the first inner surface 5.3.1, third through-hole 6.1, bulge loop 6.2, pit
6.3, the second lower surface 6.4, the 3rd lower surface 6.2.1, the 4th lower surface 6.3.1, base 7.1, the 3rd upper surface 7.1.1 is recessed
Groove 7.1.2, fourth hole 7.2, the second inner surface 7.2.1, the second column 7.3, the second outer surface 7.3.1, the second upper surface
7.3.2。
By above-mentioned description of reference numerals, with reference to the embodiment of the utility model, it can be more clearly understood and illustrate
The technical solution of the utility model.
Embodiment
Embodiment one
Such as Fig. 1, a kind of double-layer vibration damping fastener of low clearance, the fastener includes smooth bottom plate 3, and the bottom plate 3 is close
Sleeper side is equipped with plate underlay 4, places rail side and is laid with rail underlay 9, to realize vibration and noise reducing, wherein plate underlay 4 and
Rail underlay 9 is generally the good elastomeric material of elasticity.The plate underlay 4 is floating by bottom plate 3, i.e., between bottom plate 3 and sleeper not
Contact；The plate underlay 4 is equipped with location hole, and 3 lower surface of bottom plate is conformed with, and the projection is engaged with location hole,
So as to prevent plate underlay 4 from moving.Support base 7 is connected with the bottom plate 3.The interstage sleeve 5 is equipped with cover board 6, the interstage sleeve 5,
Cover board 6 and support base 7 are equipped with through hole, and anchor bolt 8 is provided with the through hole, and fastener is fixed on by the anchor bolt 8
On sleeper.
Such as Fig. 2, the bottom plate 3 is equipped with first through hole 3.1 and rail connector, and the first through hole 3.1 keeps aperture
Constant to run through bottom plate 3, the rail connector includes spring 1, track gauge block 2, and the spring 1 is by withholding track gauge block 2 to rail
Foot is fixed.Support base 7 is installed in the first through hole 3.1, such as Fig. 3-Fig. 4, shown support base 7 includes the second column
7.3 and base 7.1, second column 7.3 is connected as one with base 7.1 in step-like.The thickness of the base 7.1 is being protected
While holding sufficient intensity, the thickness without other plus load state lower plate underlays 4 after being installed at least below fastener, to ensure to detain
After part installation, plate underlay 4 is floating by bottom plate 3, makes between 3 lower surface of the 3rd upper surface 7.1.1 and bottom plate on base 7.1
A fixed gap is kept, i.e., phase separation is without contacting between bottom plate 3 and base 7.1.The base is close to the surface of the second column 7.3
For the 3rd upper surface 7.1.1；The support base 7 is equipped with fourth hole 7.2, and the fourth hole 7.2 runs through the second column 7.3
And base 7.1；7.2 inner surface of fourth hole is the second inner surface 7.2.1, and second column 7.3 is away from base 7.1
End surface is the second upper surface 7.3.2, and the cylindrical outer surface of the second column 7.3 is the second outer surface 7.3.1.
Such as Fig. 5-Fig. 6, the interstage sleeve 5 includes 5.1 and first column 5.2 of compression ring, first column 5.2 and compression ring
5.1 are connected as one in step-like.The interstage sleeve 5 is equipped with the second through hole 5.3, and second through hole 5.3 runs through the first column
5.2 with compression ring 5.1；Second through hole, 5.3 inner surface is the first inner surface 5.3.1, and the compression ring 5.1 is vertical away from first
The surface of column 5.2 is the first upper surface 5.1.2, and the cylindrical outer surface of the first column 5.2 is the first outer surface 5.2.1, the pressure
Tight ring 5.1 is the first lower surface 5.1.1 close to the surface of the first column 5.2.
Such as Fig. 7, the cover board 6 includes ring-type substrate, and the substrate is equipped with third through-hole 6.1；On the cover board 6 with gear
The one side of the contact of set 5 is the second lower surface 6.4, and second lower surface 6.4 is planar structure.
Such as Fig. 8, during installation, plate underlay 4 is laid with first, second column 7.3 is then passed through into first through hole 3.1, and
Bottom plate 3 is positioned on plate underlay 4, at this time the 3rd upper surface 7.1.1 on the base 7.1 and the second column 7.3 on bottom plate 3
Penetrate between the surface in direction that there are a fixed gap, to ensure when rail is loaded, load transmission to bottom plate 3 and plate underlay 4
On, compression occurs for plate underlay 4 at this time, and bottom plate 3 can move down so as to fulfill cushioning effect therewith.Second column
Certain interval is kept between 7.3 3.1 inner surface of the second outer surface 7.3.1 and first through hole.
Then the first column 5.2 of interstage sleeve 5 is sleeved on the second column 7.3, and is downwardly into first through hole 3.1, described
First inner surface 5.3.1 of two through holes 5.3 is matched with the second outer surface 7.3.1 of the second column 7.3；First column 5.2
The first outer surface 5.2.1 matched with the inner surface of first through hole 3.1；The second upper surface 7.3.2 and gear on the support base 7
First upper surface 5.1.2 coplines of set 5, the upper surface of the first lower surface 5.1.1 and bottom plate 3 of the interstage sleeve 5 match.
The cover board 6 is withheld on interstage sleeve 5 on first column 5.2, the second lower surface 6.4 and the interstage sleeve 5 of the cover board 6
The second upper surface 7.3.2 on first upper surface 5.1.2 and support base 7 matches；The bolt 8 is passed through on the cover board 6
Fourth hole 7.2 on third through-hole 6.1 and support base 7, cover board 6 and support base 7 are pressed abd fixed on sleeper, and pass through lid
Plate 6 is set to compress bottom plate 3 and plate underlay 4.
Preferably, such as Fig. 9, adjusting gasket 10,10 two sides of adjusting gasket point are set between interstage sleeve 5 and bottom plate 3
It is not in contact with the first lower surface 5.1.1 of interstage sleeve 5 and the upper surface of bottom plate 3.By varying the thickness of adjusting gasket, Ke Yishi
Existing adjusting of the cover board 6 to 4 pretightning force of plate underlay.
Embodiment 2
The present embodiment is identical with 1 principle of embodiment, its main distinction is, the support base 7 does not include base 7.1, such as
Figure 10-Figure 11, the support base 7 are the second column 7.3 of hollow columnar, and the through hole among second column 7.3 is the 4th
Through hole 7.2；7.2 inner surface of fourth hole is the second inner surface 7.2.1, and the end surface of second column 7.3 is the
Two upper surface 7.3.2, the cylindrical outer surface of the second column 7.3 is the second outer surface 7.3.1.
Its installation method is identical with 1 the method for embodiment, its main distinction is, as shown in figure 12, by described second
Column 7.3 passes through first through hole 3.1, and second column 7.3 stretches out the second upper surface 7.3.2 and 6 phase of cover board of the upside of bottom plate 3
Contact；Certain interval is kept between 3.1 inner surface of the second outer surface 7.3.1 and first through hole of second column 7.3.
Preferably, such as Figure 13, adjusting gasket 10,10 two sides of adjusting gasket point are set between interstage sleeve 5 and cover board 6
It is not in contact with the first upper surface 5.1.2 of interstage sleeve 5 and the second lower surface 6.4 of cover board 6.By varying the thickness of adjusting gasket
Degree, it is possible to achieve adjusting of the cover board 6 to 4 pretightning force of plate underlay.
Embodiment 3
The present embodiment is identical with 1 principle of embodiment, its main distinction is, such as Figure 14 and Figure 15,6 substrate base of cover board
Face is equipped with bulge loop 6.2, and the bulge loop 6.2 is run through by third through-hole 6.1；6.2 end face of bulge loop is the 3rd lower surface
6.2.1,6 matrix of cover board is the second lower surface 6.4 close to the end face of bulge loop 6.2.
Its installation method is identical with 1 the method for embodiment, its main distinction is, such as Figure 16, install support base 7 and
After interstage sleeve 5, the second upper surface 7.3.2 on the support base 7 is less than the first upper surface 5.1.2 of interstage sleeve 5；The cover board 6
Bulge loop 6.2 is buckled into the second through hole 5.3 of interstage sleeve 5, on second on the 3rd lower surface 6.2.1 and support base 7 of the cover board 6
Surface 7.3.2 is in contact；Second straight surface 6.4 of the cover board 6 is in contact with the first upper surface 5.1.2 on interstage sleeve 5.
Preferably, such as Figure 17, adjusting gasket 10,10 two sides of adjusting gasket are set between support base 7 and cover board 6
It is in contact respectively with the second upper surface 7.3.2 of support base 7 and the 3rd lower surface 6.2.1 of cover board 6.By varying adjusting gasket
Thickness, it is possible to achieve adjusting of the cover board 6 to 4 pretightning force of plate underlay.
Embodiment 4
The present embodiment is identical with 1 principle of embodiment, its main distinction is, such as Figure 18 and Figure 19,6 substrate base of cover board
Face is equipped with pit 6.3, the pit 6.3 and 6.1 coaxial line of third through-hole；6.3 bottom surface of pit is the 4th lower surface
6.3.1, the end face that cover board 6 is provided with pit 6.3 is the second lower surface 6.4.
Its installation method is identical with 1 the method for embodiment, its main distinction is, such as Figure 20, install support base 7 and
After interstage sleeve 5, the second upper surface 7.3.2 on the support base 7 is higher than the first upper surface 5.1.2 parts of interstage sleeve 5；The cover board
6 pit 6.3 is buckled on the second column 7.3 of support base 7, on the 4th lower surface 6.3.1 and support base 7 of the cover board 6
Second upper surface 7.3.2 is in contact；Second lower surface 6.4 of the cover board 6 connects with the first upper surface 5.1.2 on interstage sleeve 5
Touch.
Embodiment 5
The present embodiment is identical with 1 principle of embodiment, and the main distinction is：Such as Figure 21, on the bearing 7.1 of the support base 7
Equipped with groove 7.1.2, the groove 7.1.2 is annular in shape, and the annular recess 7.1.2 is distributed around the second column 7.3；Such as figure
22, the bottom surface of the bottom plate 3 is equipped with annular projection 3.2；Described raised 3.2 are engaged limitation support base 7 and bottom with groove 7.1.2
Relatively transverse displacement between plate 3.Such as Figure 23, during installation, the protrusion 3.2 on the bottom plate 3 is positioned over the support base 7
In groove 7.1.2, so as to fulfill the limitation to relatively transverse displacement between support base 7 and bottom plate 3.
The utility model proposes a kind of low clearance double-layer vibration damping fastener, by general dual layer vibration damping button described in Damping fastening
The lower plate of part is reduced to two bottom support bases, so as to greatly reduce the area and quality of lower plate, reduces the cost of fastener.
Simultaneously as fastener is not required to self-locking, dismounting is extremely convenient.In addition, after adopting the above technical scheme, fastener thrust adjusts,
The adaptability of fastener is improved, easy to eliminate fastener processing and manufacturing and run the error brought for a long time.Furthermore the utility model
In flat bottom plate on be arranged to through hole, other area thickness keep uniform, it ensure that the intensity of bottom plate, is extended
The service life of fastener, adds the stability of fastener, so as to improve safety guarantee.
In the description of the present application, belonging to " installation ", " connected ", " connection ", " fixation " etc. should all be interpreted broadly, such as
" connection " can be fixedly connected, can also when be detachably connected, or be integrally connected；Can be directly connected or
It is connected by intermediary brief introduction.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this application.
In the description of this specification, the description meaning of term " one embodiment " " some embodiments " " specific embodiment " etc.
Refer at least one implementation that the application is contained in reference to the particular features, structures, materials, or characteristics that the embodiment or example describe
In example or example, in the present specification, identical embodiment or implementation are not necessarily referring to the schematic illustration of above-mentioned term
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more embodiments or example with
Suitable mode combines.
Although those skilled in the art should be understood that embodiment disclosed by inventive embodiments as above, it is described in
It is only the embodiment for readily appreciating the utility model and using to hold, and is not limited to the embodiment of the utility model.It is any
The utility model embodiment those skilled in the art, in the premise for not departing from the spirit and scope disclosed by the utility model
Under, any modification and change, but the patent protection of the utility model embodiment can be carried out in the form and details of implementation
Scope, must still be subject to the scope that appended claim is defined.
Claims (10)
1. a kind of double-layer vibration damping fastener of low clearance, the fastener includes anchor bolt (8), plate underlay (4), the plate underlay
(4) float and be equipped with bottom plate (3), rail underlay (9) is equipped with the upside of the bottom plate (3)；The fastener includes support base (7), the branch
Support seat (7) is in the form of a column；Interstage sleeve (5) is socketed with the outside of the support base (7), the interstage sleeve (5) is equipped with cover board (6), the anchor
Fixing bolt (8) sequentially passes through cover board (6), interstage sleeve (5), support base (7) and plate underlay (4) and fastener is fixed on sleeper；It is special
Sign is：The bottom plate (3) is equipped with first through hole (3.1), and the first through hole (3.1) keeps that aperture is constant to run through bottom plate
(3), support base (7) is installed in the first through hole (3.1).
2. the double-layer vibration damping fastener of low clearance according to claim 1, it is characterised in that：The support base (7) is equipped with
Fourth hole (7.2), the fourth hole (7.2) run through the second column (7.3).
3. the double-layer vibration damping fastener of low clearance according to claim 1, it is characterised in that：The interstage sleeve (5) includes compressing
Ring (5.1) and the first column (5.2), the interstage sleeve (5) are equipped with the second through hole (5.3), and second through hole (5.3) is through the
One column (5.2) and compression ring (5.1).
4. the double-layer vibration damping fastener of low clearance according to claim 3, it is characterised in that：First column (5.2) peace
Loaded in first through hole (3.1), the compression ring (5.1) is withheld on bottom plate (3).
5. the double-layer vibration damping fastener of low clearance according to claim 4, it is characterised in that：The second of the interstage sleeve (5) is logical
Support base (7) is installed in hole (5.3).
6. the double-layer vibration damping fastener of low clearance according to claim 5, it is characterised in that：The support base (7) and interstage sleeve
(5) compression ring (5.1) is total to end face, and the cover board (6) is in flat annular, and the cover board (6) is withheld in support base (7) and compressed
On the shared end face of ring (5.1).
7. the double-layer vibration damping fastener of low clearance according to claim 5, it is characterised in that：The upper end of the support base (7)
Face is less than compression ring (5.1) upper surface of interstage sleeve (5), and the cover board (6) is included in the step-like substrate being connected as one and convex
Ring (6.2), the bulge loop (6.2) are withheld into the second through hole (5.3), and the substrate is withheld in compression ring (5.1) upper surface.
8. the double-layer vibration damping fastener of low clearance according to claim 5, it is characterised in that：The upper end of the support base (7)
Face is higher than compression ring (5.1) upper surface of interstage sleeve (5), and the cover board (6) includes substrate and pit (6.3), the pit (6.3)
Inside at least accommodating portion support base (7), the substrate are withheld in compression ring (5.1) upper surface.
9. the double-layer vibration damping fastener of low clearance according to claim 7, it is characterised in that：The support base (7) and cover board
(6) adjusting gasket (10) is set between bulge loop (6.2).
10. the double-layer vibration damping fastener of low clearance according to claim 1, it is characterised in that：The plate underlay (4) is equipped with
Location hole, bottom plate (3) lower surface are conformed with, and the projection is engaged with location hole, prevent that plate underlay (4) is mobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721109132.3U CN207244357U (en) | 2017-08-31 | 2017-08-31 | A kind of double-layer vibration damping fastener of low clearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721109132.3U CN207244357U (en) | 2017-08-31 | 2017-08-31 | A kind of double-layer vibration damping fastener of low clearance |
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Cited By (3)
| 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 |
| GB2572413A (en) * | 2018-03-29 | 2019-10-02 | Pandrol Ltd | An anchoring assembly for fastening a railway rail to an underlying foundation |
| RU207161U1 (en) * | 2021-05-12 | 2021-10-14 | Публичное акционерное общество «Северсталь» (ПАО «Северсталь») | Rail fastening screw |
-
2017
- 2017-08-31 CN CN201721109132.3U patent/CN207244357U/en active Active
Cited By (5)
| 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 |
| GB2572413A (en) * | 2018-03-29 | 2019-10-02 | Pandrol Ltd | An anchoring assembly for fastening a railway rail to an underlying foundation |
| GB2572413B (en) * | 2018-03-29 | 2022-05-18 | Pandrol Ltd | An anchoring assembly for fastening a railway rail to an underlying foundation |
| US11939728B2 (en) | 2018-03-29 | 2024-03-26 | Pandrol Limited | Anchoring assembly for fastening a railway rail to an underlying foundation |
| RU207161U1 (en) * | 2021-05-12 | 2021-10-14 | Публичное акционерное общество «Северсталь» (ПАО «Северсталь») | Rail fastening screw |
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