Ballastless turnout base plate fastening structure

Abstract

The utility model discloses a ballastless turnout base plate fastening structure which comprises a cover plate, a bolt and an eccentric sleeve, a through hole is formed in the cover plate, one or more stand columns are connected to the inner side of the cover plate, the eccentric sleeve is located in the hole of a turnout base plate, a groove body matched with the stand columns in shape and size is formed in the cylinder wall of the eccentric sleeve, and the bolt is arranged in the groove body. The bolt penetrates through the through hole in the cover plate and then enters the eccentric sleeve, the one or more stand columns are driven to stretch into the groove body of the eccentric sleeve, and the cover plate is made to tightly press the turnout base plate. When the ballastless turnout base plate fastening structure is assembled, the stand column stretches into the groove body of the eccentric sleeve, the eccentric sleeve can be effectively prevented from rotating at the moment of bolt fastening, the eccentric sleeve can be installed and positioned in a turnout base plate hole, the track gauge of a steel rail is achieved, and the service life of the steel rail is prolonged. In the using process, the bolt is not prone to loosening even if a train passes through a switch at a high speed and vibrates.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway laying, and specifically designs a ballastless turnout pad fastening structure. Background Art

[0002] The fastener system is a connecting part between the turnout rail and the turnout sleeper. The fastener system must provide both vertical and horizontal support for the train. The existing ballastless turnout fastener system includes iron pads, elastic pads under the plates, elastic pads under the rails, height adjustment pads, bolts, gauge blocks, spring bars, and ballastless turnout pad fastening structures. Among them, the ballastless turnout pad fastening structure can be selected by the eccentricity of the eccentric sleeve, so that the iron pad can adjust the rail gauge by moving laterally. However, the existing eccentric sleeve has insufficient anti-rotation function, which may cause gauge adjustment failure during the assembly process, and the vibration of the train passing the turnout at high speed may easily cause the bolts to loosen, posing a safety hazard. Utility Model Content

[0003] The utility model provides a ballastless turnout pad fastening structure to solve the technical problems in the existing structure that the rail gauge adjustment is easily failed during the transfer process due to the insufficient anti-rotation function of the eccentric sleeve, and the bolts are easily loosened during use.

[0004] The utility model provides a ballastless turnout pad fastening structure, comprising a cover plate, a bolt, and an eccentric sleeve, wherein the cover plate is provided with a through hole, the inner side of the cover plate is connected to one or more columns, the eccentric sleeve is located inside the turnout pad, a groove body matching the shape and size of the column is provided on the cylinder wall of the eccentric sleeve, the bolt enters the eccentric sleeve after passing through the through hole on the cover plate, drives the one or more columns to extend into the groove body of the eccentric sleeve, and makes the cover plate press the turnout pad.

[0005] Furthermore, the cross section of the one or more columns is polygonal.

[0006] Furthermore, the height of the one or more columns is not less than 10 mm.

[0007] Furthermore, two columns are connected to the inner side of the cover plate, and the two columns are symmetrically arranged at two ends of the through hole.

[0008] Furthermore, the cover plate and the column are integrally formed.

[0009] Furthermore, the groove body of the eccentric sleeve is a flat groove or a cross groove.

[0010] Furthermore, the eccentricity value of the eccentric sleeve includes 0 mm, 2 mm or 4 mm.

[0011] Furthermore, one or more rubber gaskets are connected to the inner side of the cover plate.

[0012] Furthermore, a groove is provided on the inner side of the cover plate, and the rubber gasket is embedded in the groove and extends beyond the inner side of the cover plate by 5 to 10 mm.

[0013] Furthermore, two rubber washers are connected to the inner side of the cover plate, and the two rubber washers are symmetrically arranged at two ends of the through hole.

[0014] The utility model has the following beneficial effects:

[0015] The utility model provides a ballastless turnout pad fastening structure in which the upright posts have been extended into the eccentric sleeve groove body at the initial stage of assembly, which can effectively prevent the eccentric sleeve from rotating at the moment of bolt tightening, thereby realizing the installation and positioning of the eccentric sleeve in the turnout pad hole; because the upright posts on the cover plate have been extended into the eccentric sleeve groove body and fixed by bolts, the turnout pad is pressed by the cover plate, and the bolts are not easy to loosen even when the train passes the turnout at high speed and vibrates.

[0016] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the fastening structure of the ballastless turnout pad of the preferred embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the cover structure of a preferred embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the flat groove eccentric sleeve of the preferred embodiment of the utility model ( Figure 3 (a): Section view; Figure 3 (b): top view);

[0021] Figure 4 This is a schematic diagram of the structure of the cross slot eccentric sleeve of the preferred embodiment of the utility model ( Figure 4 (a): Section view; Figure 4 (b): Top view).

[0022] Legend: 1-cover plate; 11-through hole; 12-column; 13-rubber gasket; 2-bolt; 3-eccentric sleeve; 31-trough body; 4-turnout pad; 41-iron pad; 42-rubber pad. DETAILED DESCRIPTION

[0023] In order to make the invention purpose, technical scheme and beneficial technical effect of the utility model clearer, the utility model is further described in detail in combination with the embodiments below. It should be understood that the embodiments described in this specification are only for explaining the utility model, not for limiting the utility model.

[0024] For simplicity, only some numerical ranges are explicitly disclosed herein. However, any lower limit can be combined with any upper limit to form an unambiguous range; and any lower limit can be combined with other lower limits to form an unambiguous range, and any upper limit can be combined with any other upper limit to form an unambiguous range. In addition, although not explicitly stated, each point or single value between the range endpoints is included in the range. Thus, each point or single value can be combined with any other point or single value as its own lower limit or upper limit or with other lower limits or upper limits to form an unambiguous range.

[0025] In the description of this article, it should be noted that, unless otherwise specified, “above” and “below” are inclusive of the number, and the “multiple” in “one or more” means two or more, and the “multiple” in “one or more” means two or more.

[0026] The embodiment of the present application provides a ballastless turnout pad fastening structure, such as Figure 1-2 As shown, it includes a cover plate 1, a bolt 2, and an eccentric sleeve 3. The cover plate 1 is provided with a through hole 11. The inner side of the cover plate is connected to one or more columns 12. The columns 12 are located around the through hole 11. The eccentric sleeve 3 is located inside the turnout pad 4. The cylinder wall of the eccentric sleeve 3 is provided with a groove body 31 that matches the shape and size of the column 12. The bolt 2 passes through the through hole 11 on the cover plate 1 and then enters the eccentric sleeve 3, driving the one or more columns 12 to extend into the groove body 31 of the eccentric sleeve 3, and allowing the cover plate 1 to press the turnout pad 4.

[0027] The ballastless turnout pad fastening structure provided by the utility model has the upright posts 12 extending into the groove body 31 of the eccentric sleeve 3 during assembly, which can effectively prevent the eccentric sleeve 3 from rotating at the moment of bolt tightening, thereby realizing the installation and positioning of the eccentric sleeve 3 on the turnout pad 4; since the upright posts 12 on the cover plate 1 have extended into the groove body 31 of the eccentric sleeve 3 and are fixed by the bolts 2, the turnout pad 4 is pressed by the cover plate 1, and the bolts 2 are not easy to loosen even when the train vibrates when passing the turnout at high speed.

[0028] In the embodiment of the present application, the cross section of the one or more pillars 12 is polygonal.

[0029] According to the embodiment of the present application, the cross section of the column 12 is a polygon, such as a square, rectangle, trapezoid, parallelogram, pentagon, hexagon, etc., and the shape of the slot 31 in the eccentric sleeve 3 matches it. The column 12 with the above cross section can more effectively prevent the eccentric sleeve 3 from rotating, and can effectively prevent the failure of the track gauge adjustment. The size and shape of the column 12 can be selected as follows: length 8mm×width 8mm×height 20mm.

[0030] In the embodiment of the present application, the height of the one or more pillars 12 is not less than 10 mm.

[0031] According to the embodiment of the present application, the turnout pad 4 includes an iron pad 41 and a rubber pad 42 under the iron pad 41. In the pad assembly systems of different turnout products, the thickness design of the rubber pad 42 has a regular gradient value. The rubber pad 42 is usually designed to be 5mm, 10mm, etc. The cover plate 1 of the present application is pre-installed with a clamping column extending into the eccentric sleeve 3 slot by no less than 10mm, for example, 10 to 12mm can be selected, which can meet the assembly anti-rotation requirements of different pads, expand the application range of the slotted eccentric sleeve 3, and have a higher degree of compatibility and universality.

[0032] In the embodiment of the present application, two columns 12 are connected to the inner side of the cover plate, and the two columns 12 are symmetrically arranged at both ends of the through hole 11. The two columns 12 symmetrically arranged at both ends of the through hole 11 can achieve a better anti-rotation function and save costs.

[0033] In the embodiment of the present application, the cover plate 1 is integrally formed with the column 12. When the cover plate 1 and the column 12 are integrally formed, the connection between the two is more stable, which can prevent the two from loosening or even detaching to a certain extent, and can play a good anti-rotation role.

[0034] In the embodiment of the present application, the groove depth of the groove body 31 of the eccentric sleeve 3 is greater than or equal to the height of the column 12. The two columns 12 symmetrically arranged at both ends of the through hole 11 can match the eccentric sleeve 3 whose groove body 31 is a flat groove or a cross groove, such as Figure 3-4 shown.

[0035] In the embodiment of the present application, the eccentricity of the eccentric sleeve 3 includes 0mm, 2mm or 4mm. The eccentricity is half of the difference between the thick wall and the thin wall of the eccentric sleeve 3. The eccentricity can be 0mm, 2mm or 4mm. Of course, the eccentric sleeve 3 with other eccentricity can also be selected according to the actual situation.

[0036] In the embodiment of the present application, one or more rubber washers 13 are connected to the inner side of the cover plate. During the fastening process of the bolt 2 and the cover plate 1, the rubber washers 13 are squeezed and deformed, the cover plate 1 moves downward, and the matching depth between the column 12 and the groove 31 of the eccentric sleeve 3 gradually increases, and the anti-rotation is more reliable.

[0037] In the embodiment of the present application, a groove is provided on the inner side of the cover plate, and the rubber gasket 13 is embedded in the groove and protrudes from the cover plate by 15 to 10 mm.

[0038] In the embodiment of the present application, two rubber washers 13 are connected to the inner side of the cover plate, and the two rubber washers 13 are symmetrically arranged at both ends of the through hole 11 .

[0039] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A ballastless turnout pad fastening structure, characterized in that: The invention comprises a cover plate (1), a bolt (2), and an eccentric sleeve (3); the cover plate (1) is provided with a through hole (11); the inner side of the cover plate is connected to one or more columns (12); the eccentric sleeve (3) is located in the hole of a switch pad (4); the cylinder wall of the eccentric sleeve (3) is provided with a groove body (31) matching the shape and size of the column (12); the bolt (2) passes through the through hole (11) on the cover plate (1) and enters the eccentric sleeve (3), driving the one or more columns (12) to extend into the groove body (31) of the eccentric sleeve (3), and making the cover plate (1) press the switch pad (4).

2. The ballastless turnout plate fastening structure according to claim 1, characterized in that: The cross section of the one or more pillars (12) is polygonal.

3. The ballastless turnout pad fastening structure according to claim 1, characterized in that: The height of the one or more columns (12) is not less than 10 mm.

4. The ballastless turnout pad fastening structure according to claim 1, characterized in that: Two upright posts (12) are connected to the inner side of the cover plate (1), and the two upright posts (12) are symmetrically arranged at two ends of the through hole (11).

5. The ballastless turnout plate fastening structure according to any one of claims 1 to 4, characterized in that: The cover plate (1) and the column (12) are integrally formed.

6. The ballastless turnout pad fastening structure according to claim 4, characterized in that: The groove body (31) of the eccentric sleeve (3) is a flat groove or a cross groove.

7. The ballastless turnout pad fastening structure according to claim 1, characterized in that: The eccentricity value of the eccentric sleeve (3) includes 0 mm, 2 mm or 4 mm.

8. The ballastless turnout pad fastening structure according to claim 1, characterized in that: One or more rubber washers (13) are connected to the inner side of the cover plate.

9. The ballastless turnout plate fastening structure according to claim 8, characterized in that: A groove is provided on the inner side of the cover plate, and the rubber gasket (13) is embedded in the groove and extends 5 to 10 mm beyond the inner side of the cover plate.

10. The ballastless turnout plate fastening structure according to claim 8 or 9, characterized in that: Two rubber washers (13) are connected to the inner side of the cover plate, and the two rubber washers (13) are symmetrically arranged at two ends of the through hole (11).

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