CN217810250U - Buried vibration isolator - Google Patents

Abstract

The utility model provides a bury type isolator, including pre-buried mount pad, spring assembly and heightening gasket, spring assembly one end embedding is in pre-buried mount pad, and the other end is through heightening gasket and basement butt, consequently, the utility model discloses a bury type isolator compact structure, spare part are small in quantity, only need to heighten gasket and spring assembly and place predetermined isolator position department in the basement when the installation, and the road bed board that has pre-buried mount pad in advance on placing again can accomplish the installation, simple to operate, and the engineering time is short, does not need other large-scale rigging equipment except the lifting device who is used for hoist and mount road bed board, consequently is applicable to the orbital construction of overhead. Inside the rubber spring set up the parcel structure that upper and lower casing gomphosis formed, carried out reasonable restraint to rubber spring's horizontal, vertical deformation, avoided outside debris, dust etc. to rubber spring's influence, be favorable to making rubber spring keep the rigidity of ideal, guarantee damping effect improves life.

Description

Buried vibration isolator

Technical Field

The utility model belongs to the technical field of making an uproar falls in the track damping, concretely relates to bury type isolator.

Background

When a train runs on a track, the impact energy during the running of the train can cause the track to generate serious vibration and noise, the riding experience of passengers on the train is seriously influenced, and the living quality of residents around the track can also be influenced. Meanwhile, the stability, safety and service life of the rail transit are also affected. Therefore, there is a need for a technique and product that can effectively reduce vibration and noise to improve the stability of the structure and ensure the safety of the track line operation.

Among the prior art, some ballast beds adopt damping pad or a plurality of steel spring to realize certain damping noise reduction effect, still have a plurality of problems: the vibration damping pad is mostly in a full-paved form, so that the rigidity of the whole vibration damping system is still higher, the vibration damping effect is very limited, and the problem of difficult arrangement of a drainage pipeline is caused by the full-paved vibration damping pad; in addition, the damping pad is generally attached or riveted to the prefabricated panel through a secondary process, which is complicated in process. The ballast bed adopting the steel springs needs to embed corresponding outer cylinders when the concrete floating slab is cast, and then the steel springs are installed in the outer cylinders one by one, adjusted and installed with a plurality of fasteners, so that the same process is complex; in addition, the steel spring and the assembling tool thereof have larger sizes, and the space required by construction is larger.

The overhead track is often construction space limited, the time limit for a project is required tightly, and the two vibration damping devices are difficult to be applied to the overhead track due to complex working procedures, long construction time, large space required by construction and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a go on for solving above-mentioned problem, aim at provides a compact structure, the size is little, the time of construction is short therefore be applicable to overhead orbital isolator, the utility model discloses a following technical scheme:

the utility model provides a bury type isolator, a serial communication port, include: the mounting seat is embedded below the track bed plate; the upper end of the spring component is embedded in the mounting seat, and the lower end of the spring component is abutted with the substrate; and a height-adjusting pad provided between a lower end of the spring assembly and the base for adjusting a mounting height of the spring assembly, wherein the spring assembly includes: a spring supporting the upper housing; the spring supports the lower shell; and the rubber spring is arranged in a coating structure formed by embedding the upper spring support shell and the lower spring support shell.

The utility model provides a bury type isolator can also have such technical characteristic, wherein, the mount pad is the built-in fitting of metal material, the top of casing on the spring-supported be provided with can with the magnet spare that the metal material adsorbs mutually, be used for making the casing adsorbs to be fixed on the spring-supported in the mount pad.

The utility model provides a bury type isolator can also have such technical characteristic, still includes spacing post, wherein, the bottom of casing has spacing post mounting groove under the spring-supported, the middle part of heightening the gasket has the hole of stepping down, during the installation, the upper end embedding of spacing post in the spacing post mounting groove, the lower extreme is squeezed into the basement fixedly, just spacing post passes heightening the gasket the hole of stepping down.

The utility model provides a bury type isolator can also have such technical characteristic, wherein, spacing post has and is cylindric upper end cylinder end and is cylindric lower extreme cylinder end, the diameter of lower extreme cylinder end is less than upper end cylinder end, the length of lower extreme cylinder end is 40mm ~ 60mm.

The utility model provides a bury type isolator can also have such technical characteristic, still includes the anticreep support, has: one end of each connecting plate is fixed below the lower spring support shell, and the other end of each connecting plate is movably fixed on the periphery of the upper spring support shell; and the two ends of the connecting plate are respectively connected to the lower spring support shell and the upper spring support shell through the connecting pieces.

The utility model provides a bury type isolator can also have such technical characteristic, wherein, the connecting plate is L shape, has mutually perpendicular's two sections, has seted up a plurality of mounting holes on one of them section, has seted up spacing bar hole on the other section, the length direction in spacing bar hole with the extending direction of another section is unanimous, the bottom surface of casing has at least a pair of connecting plate caulking groove under the spring support, its shape with the one end phase-match of connecting plate, the one end gomphosis of connecting plate is in the connecting plate caulking groove to fix through a plurality of connecting pieces under the spring support on the casing, the connecting piece passes spacing bar hole will the other end of connecting plate is installed on the periphery of casing on the spring support, just the casing can for the connecting plate removes on the spring support, and the migration range does the length scope in spacing bar hole.

The utility model provides a bury type isolator can also have such technical feature, wherein, rubber spring's upper end and lower extreme all are circularly, the spring-supported upper casing is circular lid form, and the internal surface middle part has a circular shape embedding recess, the embedding recess with rubber spring's upper end phase-match, rubber spring's upper end gomphosis and bonding are in the embedding recess, the spring-supported lower casing is circular lid form, and inside with rubber spring's lower extreme phase-match, rubber spring's lower extreme gomphosis and bonding are in the spring-supported lower casing.

The utility model provides a bury type isolator can also have such technical characteristic, wherein, the thickness of increaseing the gasket is 2mm ~ 25mm, and quantity is one or more.

Utility model with the functions and effects

According to the utility model discloses a bury type isolator, including mount pad, spring unit and heightening gasket, the mount pad is pre-buried in railway bed board below, and the embedding of spring unit one end is in the mount pad, and the other end is through heightening gasket and basement looks butt, consequently, the utility model discloses a bury type isolator's compact structure, spare part are small in quantity, only need in proper order to heighten gasket and spring unit and place each predetermined isolator position department in the basement when the installation, and the railway bed board that has the mount pad in advance of placing again can accomplish the installation, simple to operate, and the engineering time is short, does not need other large-scale rigging equipment except the lifting device who is used for hoist and mount railway bed board, consequently is applicable to the orbital construction of overhead. The spring assembly further comprises a spring support upper shell, a spring support lower shell and a rubber spring, the rubber spring is arranged inside a wrapping structure formed by the upper shell and the lower shell in an embedded mode, therefore, the rubber spring is reasonably restrained by the wrapping structure in transverse and longitudinal deformation, and the influence of external sundries, dust and the like on the rubber spring is avoided, so that the rubber spring is favorable for keeping ideal rigidity, the vibration reduction effect of the rubber spring is guaranteed, and the service life of the rubber spring is prolonged.

Drawings

FIG. 1 is a schematic plan view of a linear track bed according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a linear track bed at the location of the isolators in an embodiment of the present invention;

FIG. 3 is a schematic plan view of the roadbed slab in the embodiment of the present invention;

fig. 4 is an exploded view of a buried isolator according to an embodiment of the present invention;

fig. 5 is a perspective structure view of a mounting base in the first embodiment of the present invention;

FIG. 6 is a perspective view of a mounting base of the first embodiment of the present invention at different angles;

FIG. 7 is a cross-sectional view of a spring assembly according to an embodiment of the present invention;

fig. 8 is a perspective view of a height-adjustable gasket according to a first embodiment of the present invention;

fig. 9 is an orthographic view of a height-adjustable spacer according to an embodiment of the present invention;

fig. 10 is a perspective view of a spacing column according to a first embodiment of the present invention;

figure 11 is a cross-sectional view of a buried isolator according to a first embodiment of the present invention;

figure 12 is a cross-sectional view of a linear track bed at the location of a limit boss in an embodiment of the present invention;

fig. 13 is a flow chart of the installation of the buried vibration isolator according to the first embodiment of the present invention;

fig. 14 is a perspective view of a spring assembly according to a second embodiment of the present invention;

fig. 15 is a perspective view of the spring assembly of the second embodiment of the present invention at different angles;

fig. 16 is an exploded view of the spring assembly according to the second embodiment of the present invention;

fig. 17 is a perspective view of the spring-supported lower case according to the second embodiment of the present invention;

fig. 18 is a perspective view of a connecting plate according to a second embodiment of the present invention;

fig. 19 is a cross-sectional view of a spring assembly according to a second embodiment of the present invention.

Reference numerals are as follows:

a linear track bed 100; a ballast bed plate 110; a plate body 111; a tie 112; a limiting groove 114; a buried vibration isolator 140; a mount 141; a flange 1411; a spring assembly 142; a spring-supported upper housing 1421; an insertion groove 14211; a magnet piece mounting slot 14212; a spring-supported lower housing 1422; a rubber ring mounting groove 14221; a post mounting groove 14222; a rubber spring 1423; a retaining rubber ring 1424; a magnet member 1425; an anti-drop bracket 1426; a connecting plate 14261; a fixing hole 14261a; a stopper strip hole 14261b; a bracket attachment 14262; a bracket mount 14263; a height-adjusting pad 143; a relief hole 1431; a stopper post 144; an upper cylindrical end 1441; a lower cylindrical end 1442; a substrate 200; and a limiting boss 400.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following embodiments and drawings are combined to specifically describe the buried vibration isolator of the present invention.

< first embodiment >

FIG. 1 is a schematic plan view of a linear track bed according to this embodiment.

Fig. 2 is a sectional view of the linear track bed at the vibration isolator position in the present embodiment, and a part of a relatively thin structure is omitted in order to show the overall structural composition.

As shown in fig. 1 to 2, the linear track bed 100 of the present embodiment is provided on an overhead frame for mounting linear rails. The linear track bed 100 is formed by connecting a plurality of track bed slabs 110 end to end.

Fig. 3 is a schematic plan view of the road deck of the present embodiment.

As shown in fig. 1 to 3, the track bed slab 110 is disposed on a base 200, and the base 200 is made of concrete and cast on an elevated beam. The ballast bed plate 110 comprises a plate body 111 and a plurality of buried vibration isolators 140, wherein the plate body 111 is a prestressed reinforced concrete plate which is cast and molded in advance in a factory and laid on an overhead to form a part of a beam span plate of the overhead; the buried vibration isolators 140 are embedded in the plate body 111 in groups of two, and the two buried vibration isolators 140 of a group are respectively located at positions directly below the two rails.

In this embodiment, the overhead is a 30m beam, the slab 111 includes two types, i.e., a P3500 type and a P4700 type, and for the 30m beam, 7P 3500 type track slabs and 1P 4700 type track slab are laid. Wherein, the size of the P3500 type track bed plate is 3500mm multiplied by 2400mm multiplied by 260mm (length multiplied by width multiplied by thickness), six pairs of buckling assemblies 111 are arranged on the P3500 type track bed plate at equal intervals; the size of the P4700 type track bed plate is 4700mm × 2400mm × 260mm (length × width × thickness), and 8 pairs of sleepers 112 are arranged thereon at equal intervals. The linear rails are mounted on the track bed slab 110 by ties 112 and snap fittings.

As shown in fig. 1, a plurality of buried vibration isolators 140 are provided under the track bed plate 110 to reduce vibration and noise of the track when a train travels. 3 pairs of buried vibration isolators 140 are arranged below the P3500 type track bed slab at equal intervals, each pair of buried vibration isolators 140 is arranged between two adjacent pairs of buckling assemblies 112, and each buried vibration isolator 140 is arranged right below a steel rail; 4 pairs of buried vibration isolators 140 are arranged below the P4700 type track slab at equal intervals, and the specific arrangement method is the same as above.

In addition, the planar position of each buried vibration isolator 140 is indicated by a dotted circle in fig. 1 and 3, and the structure of the buried vibration isolator 140 cannot be seen from above the track bed 110 after the installation is completed.

Fig. 4 is an exploded structural view of the buried vibration isolator in accordance with the present embodiment.

As shown in fig. 4, buried vibration isolator 140 includes a mounting seat 141, a spring assembly 142, an elevation spacer 143, and a restraining post 144.

Fig. 5 is a perspective view of the mounting base in the present embodiment.

Fig. 6 is a perspective view of the mounting base of the present embodiment at different angles.

The mounting seat 141 is an embedded part made of steel, and is preset at a corresponding position in a steel bar frame of the slab 111 when the slab 111 of concrete is cast. As shown in fig. 5 to 6, the mounting seat 141 is in the shape of a circular cap, and the thickness of the housing thereof is 8mm to 12mm. The upper end of the mounting seat 141 has a ring of flanges 1411 for increasing the adhesion and load-bearing capacity of the mounting seat 141.

The spring assembly 142 is generally cylindrical in shape and has a diameter smaller than the inner diameter of the mounting seat 141.

Fig. 7 is a sectional view of the spring assembly in this embodiment.

The spring assembly 142 absorbs the vibration energy transmitted from the plate 111 when the train runs by using the elastic deformation of the spring assembly, and plays a role in vibration damping and noise reduction. As shown in fig. 4 and 7, the spring assembly 142 includes a spring support upper housing 1421, a spring support lower housing 1422, a rubber spring 1423, and a plurality of stopper rubber rings 1424.

The spring support upper case 1421 is made of a metal material, and has a circular cap shape, and a circular insertion groove 14211 is formed on the inner surface of the top thereof, and the shape and size of the insertion groove 14211 match the upper end of the rubber spring 1423.

The spring support lower case 1422 is also made of a metal material and is in a circular cap shape, and the diameter of the spring support lower case 1422 is smaller than that of the spring support upper case 1421, so that the spring support lower case 1422 and the spring support upper case 1421 can be embedded together, and a cladding structure is formed by cladding the spring support lower case 1422. The inner diameter of the spring support lower housing 1422 matches the rubber spring 1423. In addition, the outer periphery of the lower spring support casing 1422 has two rings of annular rubber ring mounting grooves 14221 for fitting and mounting the limiting rubber ring 1424; the spring support lower housing 1422 has a circular retaining post mounting groove 14222 in the middle of the bottom surface thereof for mounting the retaining post 144.

The rubber spring 1423 is made of rubber through vulcanization, and has an upper end and a lower end that are circular plate-shaped, and circular metal plates are wrapped in the upper end and the lower end of the rubber spring 1423, so that the forces borne by the two ends can be transmitted to the middle portion more uniformly. A middle portion of the rubber spring 1423 is formed between the upper and lower ends, and the middle portion thereof is contracted radially inward, and both sides of the rubber spring 1423 are shaped like an inwardly curved arc as viewed from the side.

The rubber spring 1423 has a variety of stiffness specifications. During the production process, the stiffness of the rubber spring 1423 can be adjusted by adjusting the rubber composition and production parameters. In the present embodiment, the rubber springs 1423 disposed in the middle of the plate body 111 have a relatively lower rigidity, and the rubber springs 1423 disposed on both sides in the longitudinal direction of the plate body 111 have a relatively higher rigidity. Since relatively large vibration is generated on both sides of the plate body 111 due to the presence of the cross section, the vibration damping effect of the entire plate body 111 can be made more uniform by such an arrangement.

The rubber spring 1423 is disposed inside a wrapping structure formed by fitting the spring support upper case 1421 and the spring support lower case 1422. The upper end of the rubber spring 1423 is fitted into the insertion groove 14211 and fixed by adhesion; the lower end of the rubber spring 1423 is fitted into the spring support lower case 1422 and is also fixed by bonding, thereby forming a vibration damping member having an elastic damping action as a whole.

Two spacing rubber rings 1424 are respectively embedded in two rubber ring mounting grooves 14221 of the spring support lower housing 1422, and the spacing rubber ring 1424 protrudes outward from the rubber ring mounting groove 14221, and the protruding part of the spacing rubber ring 1424 abuts against the inner surface of the spring support upper housing 1421, so that the upper and lower housings are transversely limited.

Fig. 8 is a perspective view of the height adjusting spacer in the present embodiment.

Fig. 9 is an orthographic view of the height-adjusting spacer in the present embodiment.

The height-adjusting pads 143 are used to adjust the installation height of the spring assemblies 142, thereby adjusting the height throughout the upper surface of the track bed plate 110. As shown in fig. 8-9, the height-adjusting pad 143 is a circular, sheet-like metal member having a diameter substantially corresponding to the diameter of the spring assembly 142. The middle part of the height-adjusting gasket 143 is provided with a circular offset hole 1431 for the limiting post 144 to pass through when being installed.

The height-adjusting pad 143 has a plurality of rules, each having a different thickness, and the thickness thereof is 2mm to 25mm. One or more height-adjusting spacers 143 may be provided for each isolator, depending on the actual requirements of the track.

Fig. 10 is a perspective view of the stopper post in the present embodiment.

The retention posts 144 are used to secure the spring assembly 142 to the substrate 200 and limit lateral displacement thereof. As shown in fig. 4 and 10, the limiting column 144 is a shaft pin-shaped metal component having an upper cylindrical end 1441 and a lower cylindrical end 1442. When the spring support lower shell 1422 is installed, the upper cylindrical end 1441 is embedded into the limiting column installation groove 14222 at the bottom of the spring support lower shell 1422, the lower cylindrical end 1442 is driven into the substrate 200 to be fixed, and the length of the lower cylindrical end 1442 (namely the depth driven into the substrate) is 40 mm-60 mm. In addition, the diameter of the upper cylindrical end 1441 is larger than that of the lower cylindrical end 1442, so that a step structure is formed at an upper position in the middle of the stopper column 144 for limiting the driving depth of the stopper column 144 when the substrate 200 is driven.

Fig. 11 is a sectional view of the buried vibration isolator in this embodiment, and fig. 11 shows a structure in which the buried vibration isolator is completed in installation.

As shown in fig. 11, after the installation, the installation seat 141 is embedded in the lower portion of the plate body 111 to form a circular installation groove opened downward, the upper end (i.e., the spring support upper housing 1421) of the spring assembly 142 is installed in the installation seat 141, the lower end (i.e., the spring support lower housing 1422) is placed on the substrate 200, and the position limiting structure is formed by the position limiting column 144.

In addition, the overall height of the spring assemblies 142 and the height-adjusting pads 143 is greater than the distance from the inner top surface of the mounting seat 141 to the base 200, so that the plate body 111 is not in direct contact with the base 200 after the mounting is completed, but is formed in the form of a floating plate, and is connected to the base 200 in a point contact manner by the plurality of spring assemblies 142.

Fig. 12 is a cross-sectional view of the linear track bed at the position of the limit projection in this embodiment.

As shown in fig. 1 and 12, the linear track bed 100 is assembled by connecting a plurality of track bed slabs 110 end to end, and the interval between two adjacent track bed slabs 110 is 70mm. The plate body 111 is further provided with a limiting groove 114 on each of both sides in the length direction, and the limiting groove 114 is shaped like a rectangular parallelepiped having a lead angle for installing the limiting boss 400 during assembly. The limiting boss 400 is a rectangular parallelepiped concrete platform with a lead angle, and the shape of the limiting boss matches with the limiting groove 114. During assembly, the limiting bosses 400 are respectively engaged with the limiting grooves 114 on the corresponding sides of two adjacent track bed slabs 110, so as to transversely limit the track bed slabs 110.

Fig. 13 is a flowchart of the installation of the buried vibration isolator in accordance with the present embodiment.

As shown in fig. 13, based on the above structure, in the present embodiment, the process of installing the buried vibration isolator 140 specifically includes the following steps:

step S1, the limit post 144 is driven into the predetermined vibration isolator position on the base 200, and then step S2 is performed.

Step S2, placing the height-adjusting spacer 143 and the spring assembly 142 in sequence at a predetermined vibration isolator position on the base 200, and then proceeding to step S3.

The limiting post 144 passes through the yielding hole 1431 in the middle of the height-adjusting pad 143 and is embedded in the limiting post mounting groove 14222 at the bottom of the spring assembly 142.

Step S3, the prefabricated plate body 111 is placed on the substrate 200 through the hoisting equipment, and the mounting seats 141 pre-embedded below the plate body 111 are respectively aligned with the spring assemblies 142, and then the process goes to step S4.

After being aligned and lowered, the upper ends of the respective spring assemblies 142 are inserted into the respective mounting seats 141, and the track bed 110 is brought into a spring-supporting state.

And S4, adopting a stress detection tool to detect the stress of all the spring assemblies 142, judging whether the looseness phenomenon exists or not, if so, entering the step S5, and if not, entering an ending state.

And S5, lifting the plate body 111 through the lifting equipment, replacing the height-adjusting gasket 143 under the unstressed spring assembly 142 according to the stress detection result, and returning to the step S4.

All the spring assemblies 142 are required to be stressed completely, if the situation that part of the spring assemblies 142 are loosened and not stressed is found, the plate body 111 is lifted, the thickness and the number of the required heightening gaskets 143 are recalculated according to the stress detection result, the heightening gaskets 143 are correspondingly replaced, the step S4 is returned again for stress detection, and the process is repeated until all the spring assemblies 142 are stressed completely, so that the vibration reduction effect and the operation safety of the track are guaranteed.

< example two >

The present embodiment provides a buried vibration isolator, a track slab and a linear track bed, wherein the buried vibration isolator is installed on the track slab, and compared with the first embodiment, the difference is that the spring assembly of the buried vibration isolator of the present embodiment adopts a double anti-dropping structure of magnetic attraction and bracket.

Fig. 14 is a perspective view of the spring assembly in this embodiment.

Fig. 15 is a perspective view of the spring assembly of the present embodiment at a different angle.

FIG. 16 is an exploded view of the spring assembly of this embodiment;

as shown in fig. 14 to 16, the spring assembly 142 of the buried vibration isolator 140 of the present embodiment further includes a magnet member 1425 and an anti-dropping bracket 1426.

The magnet member 1425 is used to fixedly attach the spring assembly 142 to the mounting base 141, and in this embodiment, the mounting base 141 is made of a steel material, and the magnet member 1425 is a ferromagnetic body capable of being attached to the steel material. The magnet 1425 is cylindrical, and a through mounting hole is formed in the middle thereof.

The spring support upper housing 1421 also has a circular magnet member mounting groove 14212 in the middle of the top surface, which is shaped and sized to match the magnet member 1425. The magnet piece mounting groove 14212 also has a through mounting hole in the middle of the bottom surface thereof, so that the magnet piece 1425 can be fitted into the magnet piece mounting groove 14212 and fixed by a connector.

The anti-drop support 1426 is used to prevent the spring assembly 142 from dropping off during transportation, which may damage the rubber spring therein and affect the construction efficiency. As shown in fig. 15 to 16, the anti-drop bracket 1426 includes a pair of connection plates 14261, a pair of bracket connection members 14262, and a plurality of bracket fixing members 14263.

Fig. 17 is a perspective view of the connection plate in the present embodiment.

As shown in fig. 17, the connecting plate 14261 is an L-shaped metal member, and has two sections perpendicular to each other, wherein one section is provided with two fixing holes 14261a, and the other section is provided with a limiting strip-shaped hole 14261b, and a length direction of the limiting strip-shaped hole 14261b is the same as an extending direction of the section.

The bracket connecting member 14262 is used to movably fix one end of the connecting plate 14261 having the stopper hole 14261b to the outer periphery of the spring support upper housing 1421. As shown in fig. 16, the spring support upper housing 1421 further has a pair of bracket connection holes on the periphery thereof, and the bracket connection member 14262 simultaneously passes through the limiting strip-shaped hole 14261b and the bracket connection hole on the spring support upper housing 1421, so that one end of the connection plate 14261 is connected to the spring support upper housing 1421 and can move in the vertical direction relative to the spring support upper housing 1421 within the length range of the limiting strip-shaped hole 14261 b.

The bracket fixing member 14263 serves to fix the other end of the connecting plate 14261 to the bottom of the spring support lower case 1422.

Fig. 18 is a perspective view of the spring support lower case in the present embodiment.

As shown in fig. 18, the bottom of the spring support lower case 1422 further has a pair of link plate insertion grooves 14223, which are formed in a shape corresponding to the end of the link plate 1461 having the fixing hole 14261a, and the link plate insertion grooves 14223 are penetrated outward. A pair of web slots 14223 are oppositely disposed. One end of the connecting plate inserting groove 14223 is formed with two connecting member mounting holes, and the positions of the connecting member mounting holes correspond to the two fixing holes 14261a of the connecting member 1461. Therefore, the end of the connecting plate 1461 can be engaged with the connecting plate embedding groove 14223 and fixed by the bracket fixing member 14263, so that the end of the connecting plate 1461 serves to connect and support the spring support lower housing 1422.

In addition, in this embodiment, the bracket connecting part 14262 and the bracket fixing part 14263 are both screws.

Fig. 19 is a sectional view of the spring assembly in the present embodiment, and fig. 19 shows a state where the spring assembly is mounted to form a whole.

As shown in fig. 19, due to the corresponding mounting groove structure, the upper surface of the magnet part 1425 is flush with the upper surface of the upper spring support case 1421, and the lower surface of the L-shaped connecting plate 14261 is flush with the lower surface of the lower spring support case 1422, so that the upper and lower end shapes of the spring assembly 142 are the same as those of the first embodiment, and other components of the vibration isolator do not need to be adjusted, and thus the spring assembly 142 of the first embodiment can be mounted in the same manner as that of the first embodiment.

Due to the double anti-dropping structure, the spring assembly 142 of the buried vibration isolator 140 of the embodiment is not separated during the transportation process, and after the installation, the spring assembly 142 can be fixed in the installation seat 141 in an absorption manner.

In this embodiment, the other structures, the operation principle, and the installation method of the buried vibration isolator are the same as those in the first embodiment, and therefore, the description thereof will not be repeated.

Effects and effects of the embodiments

According to the buried vibration isolator 140 provided by the embodiment, the buried vibration isolator 140 comprises an installation seat 141, a spring assembly 142 and a height-adjusting gasket 143, the installation seat 141 is embedded below the track bed slab 110, one end of the spring assembly 142 is embedded in the installation seat 141, and the other end of the spring assembly is connected with the base 200 in a butting mode through the height-adjusting gasket 143. Spring unit 142 further includes spring support upper housing 1421, spring support lower housing 1422 and rubber spring 1423, rubber spring 1423 sets up inside the parcel structure that upper and lower casing gomphosis formed, therefore, through the parcel structure to rubber spring 1423 horizontal, longitudinal deformation has carried out reasonable restraint, and avoided outside debris, dust etc. to rubber spring 1423's influence, consequently, be favorable to making rubber spring 1423 keep ideal rigidity, ensure its damping effect, improve its life.

Further, the buried-type vibration isolator 140 further includes a limiting post 144, one end of which is embedded in the limiting post mounting groove 14222 at the bottom of the spring assembly 142, and the other end of which is driven into the base 200 for fixing, so that the spring assembly 142 can be mounted on the base 200 through the limiting post 144, and the lateral displacement thereof is limited, thereby further improving the reliability and safety of the buried-type vibration isolator 140.

In the second embodiment, the magnet 1425 is further fixed in the middle of the top surface of the spring assembly 142, so that the spring assembly 142 can be fixed in the steel mounting seat 141 in an absorbing manner, and therefore, the spring assembly 142 can be prevented from coming out of the mounting seat 141, and the reliability of the buried vibration isolator 140 is further improved; spring unit 142 outside still cladding has the anticreep support 1426 that constitutes by a pair of L type connecting plate 14261, can prevent in the handling that spring unit 142's upper and lower casing is thrown off, because rubber spring 1423 both ends bond respectively in upper and lower casing, upper and lower casing is thrown off and also probably causes the damage to rubber spring 1423, consequently can play the guard action to spring unit 142 and constructor through anticreep support 1426, and it is more convenient to make constructor carry, thereby improve holistic efficiency of construction. In particular, one end of the L-shaped connecting plate 14261 is a strip-shaped hole 14261b, and the connecting member passes through the strip-shaped hole 14261b and the mounting hole on the periphery of the spring support upper housing 1421, so that the end of the L-shaped connecting plate 14261 can move in the vertical direction relative to the spring support upper housing 1421 within the length range of the strip-shaped hole 14261b, that is, the setting of the anti-falling bracket 1426 does not affect the elastic expansion and contraction of the spring assembly 142 within a reasonable range.

In addition, the buried vibration isolator 140 is disposed below the slab body 111, and the vibration isolator and the mounting structure thereof cannot be seen from above the track bed 110, so the track bed 110 and the linear track bed 100 using the buried vibration isolator 140 of the present embodiment also have an advantage of beautiful appearance. Meanwhile, because the buried vibration isolator 140 is only arranged below the plate body 111, the buried vibration isolator 140 can be arranged right below the steel rail to achieve a better vibration damping effect, unlike the conventional steel spring vibration isolator, and is arranged on one side of the steel rail for later maintenance.

The above embodiments are merely illustrative of specific embodiments of the present invention, and the present invention is not limited to the description of the above embodiments.

In the above embodiment, the anti-dropping support 1426 includes a pair of L-shaped connecting plates 14261, and the spring support upper housing 1421 and the spring support lower housing 1422 are respectively provided with the caulking groove and the mounting hole for embedding and mounting the pair of connecting plates 14261, in an alternative, the anti-dropping support 1426 may also include a plurality of connecting plates 14261, which are uniformly distributed along the circumference, and the spring support upper housing 1421 and the spring support lower housing 1422 are respectively provided with a plurality of caulking grooves and mounting holes corresponding thereto, so that the corresponding technical effects can also be achieved.

Claims (8)

1. A buried vibration isolator disposed below a ballast bed slab, comprising:

the mounting seat is embedded below the track bed plate;

the upper end of the spring component is embedded in the mounting seat, and the lower end of the spring component is abutted with the substrate; and

a height-adjusting shim disposed between the spring assembly and the base,

wherein the spring assembly comprises:

a spring supporting the upper housing;

the spring supports the lower shell; and

and the rubber spring is arranged in a coating structure formed by embedding the upper spring support shell and the lower spring support shell.

2. The buried isolator of claim 1, wherein:

wherein the mounting seat is an embedded part made of metal material,

the top of the upper spring support shell is provided with a magnet piece capable of being adsorbed by metal materials, and the magnet piece is used for enabling the upper spring support shell to be adsorbed and fixed in the mounting seat.

3. The buried isolator of claim 1, further comprising:

a position-limiting column is arranged on the upper surface of the frame,

wherein, the bottom of the spring support lower shell is provided with a limiting column mounting groove,

the middle part of the height-adjusting gasket is provided with a yielding hole,

during installation, the upper end of the limiting column is embedded into the limiting column mounting groove, the lower end of the limiting column is driven into the substrate to be fixed, and the limiting column penetrates through the abdicating hole of the heightening gasket.

4. The buried isolator of claim 3, wherein:

wherein the limit column is provided with a cylindrical upper end cylindrical end and a cylindrical lower end cylindrical end,

the diameter of the lower cylindrical end is smaller than that of the upper cylindrical end,

the length of the lower cylindrical end is 40 mm-60 mm.

5. The buried isolator of claim 1, further comprising:

the anticreep support has:

one end of each connecting plate is fixed below the lower spring support shell, and the other end of each connecting plate is movably fixed on the periphery of the upper spring support shell; and

and the two ends of the connecting plate are respectively connected to the lower spring support shell and the upper spring support shell through a plurality of connecting pieces.

6. The buried vibration isolator of claim 5, wherein:

wherein the connecting plate is L-shaped and is provided with two sections which are vertical to each other, one section is provided with a plurality of mounting holes, the other section is provided with a limiting strip-shaped hole,

the length direction of the limiting strip-shaped hole is consistent with the extending direction of the other section,

the bottom surface of the spring support lower shell is provided with at least one pair of connecting plate caulking grooves, the shape of the connecting plate caulking grooves is matched with one end of the connecting plate,

one end of the connecting plate is embedded in the embedding groove of the connecting plate and is fixed on the lower spring support shell through a plurality of connecting pieces,

the connecting piece passes spacing bar hole will the other end of connecting plate is installed on the periphery of casing on the spring-supported, just the casing can for on the spring-supported the connecting plate removes, and the migration range does the length scope in spacing bar hole.

7. The buried isolator of claim 1, wherein:

wherein the upper end and the lower end of the rubber spring are both round,

the spring support upper shell is in a circular cover shape, the middle part of the inner surface of the spring support upper shell is provided with a circular embedding groove, the embedding groove is matched with the upper end of the rubber spring,

the upper end of the rubber spring is embedded and bonded in the embedding groove,

the spring support lower shell is in a circular cover shape, the inner part of the spring support lower shell is matched with the lower end of the rubber spring,

the lower end of the rubber spring is embedded and bonded in the spring support lower shell.

8. The buried vibration isolator of claim 1, wherein:

wherein, the thickness of the height-adjusting gasket is 2 mm-25 mm, and the number of the height-adjusting gasket is one or more.

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