CN217601104U - Novel damping fastener - Google Patents

Abstract

The utility model relates to the technical field of shock-absorbing fasteners, in particular to a novel shock-absorbing fastener; the structure is scientific and reasonable, and the shock-absorbing effect is improved; it comprises a sleeper, an upper backing plate and a lower backing plate; and also includes a middle shock-absorbing pad , the middle shock pad is located between the upper pad and the lower pad, the upper pad and the lower pad are installed on the sleeper through anchor bolts, and the top and bottom of the middle shock pad are provided with multiple sets of Uniformly distributed cylindrical protrusions.

Description

A new type of vibration damping fastener

technical field

The utility model relates to the technical field of shock-absorbing fasteners, in particular to a novel shock-absorbing fastener.

Background technique

As we all know, the new type of vibration damping fastener is an auxiliary mechanism for track damping; Publication (Announcement) No. CN105544318B discloses a double-layer vibration damping fastener for urban railways, including a base, an insulating buffer pad, an elastic Cushion, upper iron pad, insulating gauge block, steel rail, rubber pad under rail, nut, flat washer, T-bolt, elastic strip, anchor bolt, heavy spring washer, pressure plate, insulating gland, iron connecting rod, Nylon casing. The beneficial effect of the invention is that an innovatively designed structure without a lower-layer iron backing plate is adopted, which can be manually disassembled without special tools, the maintenance and replacement of the elastic backing layer is simple, and maintenance and repair are convenient; the use of the iron connecting rod enables the two anchor bolts to receive It optimizes the working state of the anchor bolt and improves the safety of the fastener. At the same time, the structure is simple and the cost is low. During use, it is found that its shock absorption performance is not good, and it has certain limitations in use.

Utility model content

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the utility model provides a novel vibration damping fastener which has a scientific and reasonable structure and improves the damping effect.

(2) Technical solutions

In order to achieve the above purpose, the present utility model provides the following technical solutions: comprising a sleeper, an upper backing board and a lower backing board; and also comprising a middle shock-absorbing pad, the middle shock-absorbing pad is located between the upper backing board and the lower backing board, the The upper backing plate and the lower backing plate are mounted on the sleeper through anchor bolts, and a plurality of groups of evenly distributed cylindrical protrusions are arranged on the top and bottom of the middle shock-absorbing pad.

Preferably, a limit assembly is also included, a lateral limit post is installed on the lower backing plate, a through hole is arranged on the upper backing plate to fit the lateral limit post, and the limit assembly includes a limit a ring and a pressure plate, the lateral limit column passes through the through hole, the limit ring is sleeved at the lateral limit column, the outer wall of the limit ring is in close contact with the inner wall of the through hole, and the pressure plate is pressed by the anchor bolts on the top of the limit ring.

Preferably, the top of the lateral limiting column is provided with tooth grooves, and the bottom of the pressing plate is provided with teeth that fit with the tooth grooves.

Preferably, the bottom of the pressing plate is provided with raised ribs, and the tops of the limiting ring and the lateral limiting column are both provided with grooves that fit with the raised ribs.

Preferably, an under-rail shock-absorbing pad is provided on the upper pad.

Preferably, it also includes an elastic bar, a mounting seat is provided on the upper backing plate, and the elastic bar is mounted on the mounting seat.

(3) Beneficial effects

Compared with the prior art, the present utility model provides a novel damping fastener, which has the following beneficial effects: the novel damping fastener, through the arrangement of the cylindrical protrusions on the middle damping pad, can be squeezed on the upper pad. When pressing, the cylindrical protrusions on the middle shock pad are deformed, and the adjacent cylindrical protrusions are in contact with each other. After the vibration pressure is reduced, the cylindrical protrusions are reset to realize the slow release of the downward pressure vibration force. The structure is simple and scientific, and can play a better shock absorption effect.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the top view structure schematic diagram of the present utility model;

3 is a schematic view of the cross-sectional structure at A-A in FIG. 2 of the present utility model;

4 is a schematic structural diagram of a bottom plate of the present invention;

Fig. 5 is the structural schematic diagram of the upper backing plate of the present invention;

FIG. 6 is a schematic structural diagram of the middle shock absorbing pad of the present invention;

Fig. 7 is the structural schematic diagram of the limit ring of the present invention;

Fig. 8 is the structure schematic diagram of the pressing plate of the present invention;

Symbols in the drawings: 1, sleeper; 2, upper pad; 3, lower pad; 4, middle shock pad; 5, cylindrical protrusion; 6, lateral limit post; 7, through hole; 8, limit Position ring; 9, pressure plate; 10, tooth slot; 11, tooth; 12, raised edge; 13, groove; 14, shock pad under rail; 15, elastic strip; 16, mounting seat; 17, anchor bolt .

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-8, a new type of vibration damping fastener of the present invention includes a sleeper 1, an upper backing plate 2 and a lower backing plate 3; and also includes a middle shock-absorbing pad 4, which is located on the upper backing plate 2 and the lower pad 3, the upper pad 2 and the lower pad 3 are installed on the sleeper 1 through the anchor bolts 17, and the top and bottom of the middle shock pad 4 are provided with a plurality of groups of evenly distributed cylindrical protrusions 5 .

Specifically, it also includes a limit assembly, a lateral limit post 6 is installed on the lower backing plate 3, a through hole 7 is provided on the upper backing plate 2 that fits with the lateral limit post 6, and the limit assembly includes a limit ring 8 and the pressure plate 9, the lateral limit post 6 passes through the through hole 7, the limit ring 8 is sleeved at the lateral limit post 6, the outer wall of the limit ring 8 is in close contact with the inner wall of the through hole 7, and the pressure plate 9 is pressed by the anchor bolt 17. Cover the upper part of the limit ring 8; the lateral limit post 6 can limit the upper backing plate 2 laterally to avoid lateral displacement of the fastener during the stress process, and the limit ring 8 is located between the lateral limit post 6 and the pass through. Between the holes 7, the close contact between the upper backing plate 2 and the lower backing plate 3 is realized, and the lateral displacement of the upper backing plate 2 is further prevented.

Specifically, the top of the lateral limiting column 6 is provided with a tooth slot 10, and the bottom of the pressure plate 9 is provided with a tooth 11 that fits with the tooth slot 10; the tooth 11 on the pressure plate 9 is inserted into the tooth slot 10, increasing the pressure plate The tightness of the contact between the 9 and the teeth 11 improves the installation stability of the pressure plate 9, avoids the displacement of the pressure plate 9 from the lateral limit post 6 during the vibration process of the fastener, and improves the stability of the installation structure.

Specifically, the bottom of the pressure plate 9 is provided with a raised rib 12, and the top of the limit ring 8 and the lateral limit post 6 are provided with grooves 13 that fit with the raised rib 12; the raised rib 12 on the pressure plate 9 is inserted into the limit In the groove 13 on the position ring 8 and the lateral limit post 6, the limit ring 8, the pressure plate 9 and the lateral limit post 6 are assembled as a whole, so as to avoid the displacement of a single part due to vibration, and further improve the integrity of the fastener. installation strength.

Specifically, an under-rail shock-absorbing pad 14 is provided on the upper backing plate 2; the shock-absorbing principle of the under-rail shock-absorbing pad 14 is the same as that of the middle shock-absorbing pad 4, and a plurality of groups of uniformly distributed shock-absorbing pads 14 are arranged on the under-rail shock-absorbing pad 14. The cylindrical protrusion 5 can further improve the overall shock absorption effect of the fastener.

Specifically, it also includes a spring bar 15, a mounting seat 16 is provided on the upper backing plate 2, and the spring bar 15 is installed on the mounting seat 16; the elastic limit of the rail is performed by the spring bar 15, so as to realize the elastic installation of the fastener and the steel rail, While limiting the position of the rail, it has a further shock absorption effect.

When in use, assemble the lower pad 3, the middle damping pad 4, the upper pad 2 and the lower rail damping pad 14 respectively from bottom to top, the limit ring 8 is sleeved on the lateral limit post 6, and the pressure plate 9 is pressed over the limit ring 8 to ensure that the tooth grooves 10 on the lateral limit post 6 are fitted with the teeth 11 under the pressure plate 9, and the raised ribs 12 at the bottom of the pressure plate 9 are inserted into the limit ring 8 and the lateral limit In the groove 13 above the column 6, the anchor bolts 17 pass through the pressure plate 9 to fix the lower backing plate 3, the middle damping pad 4, the upper backing plate 2 and the lower rail damping pad 14 on the sleeper 1, and the rail is installed on the sleeper 1. Just below the clip 15.

It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiment," "some embodiments," etc. mean that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily Each embodiment includes the particular feature, structure or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure or characteristic is described in conjunction with one embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments, expressly or not expressly described.

It should be readily understood that "on", "over" and "on" in this disclosure should be interpreted in the broadest possible manner, such that "on" does not only mean "on" Directly on something" also includes the meaning of "on something" with intervening features or layers, and "above" or "over" includes not only "above something" or " The meaning of "over" can also include "above" or "over" without intervening features or layers (ie, directly on something).

In addition, spatially relative terms such as "below," "below," "below," "above," "above," etc. may be used herein for ease of description, to describe one element or feature relative to other elements or features as shown in the drawings. relationship shown. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein may likewise be interpreted accordingly.

It should be noted that, in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these Any such actual relationship or sequence exists between entities or operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. scope.

Claims (5)

1. A novel damping fastener is characterized by comprising a sleeper (1), an upper base plate (2) and a lower base plate (3); the shock absorber comprises an upper base plate (2) and a lower base plate (3), and is characterized by further comprising an intermediate shock absorption pad (4), wherein the intermediate shock absorption pad (4) is positioned between the upper base plate (2) and the lower base plate (3), the upper base plate (2) and the lower base plate (3) are installed on a sleeper (1) through anchor bolts (17), and the top and the bottom of the intermediate shock absorption pad (4) are respectively provided with a plurality of groups of uniformly distributed cylindrical bulges (5); still include spacing sub-assembly, install horizontal spacing post (6) on lower bolster (3), upper bolster (2) are provided with through-hole (7) that agree with mutually with horizontal spacing post (6), spacing sub-assembly includes spacing ring (8) and clamp plate (9), horizontal spacing post (6) pass through-hole (7), horizontal spacing post (6) department is located to spacing ring (8) cover, spacing ring (8) outer wall and through-hole (7) inner wall in close contact with, clamp plate (9) cover in spacing ring (8) upper portion through anchor bolt (17) pressure.

2. The novel vibration damping fastener according to claim 1, wherein a tooth socket (10) is arranged at the top of the transverse limiting column (6), and teeth (11) matched with the tooth socket (10) are arranged at the bottom of the pressing plate (9).

3. A novel vibration-damping fastener according to claim 2, characterized in that the bottom of the pressure plate (9) is provided with a raised edge (12), and the top of the spacing ring (8) and the top of the transverse spacing post (6) are provided with grooves (13) engaged with the raised edge (12).

4. A novel vibration damping fastener according to claim 3, characterized in that a rail-bound lower damping cushion (14) is provided on said upper cushion plate (2).

5. The novel vibration damping fastener according to claim 4, characterized in that it further comprises a spring strip (15), a mounting seat (16) is arranged on the upper backing plate (2), and the spring strip (15) is mounted on the mounting seat (16).

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