Integrated under-rail backing plate

Abstract

The utility model belongs to the technical field of rail components, and relates to an integrated under-rail base plate which comprises a square plate-shaped body, a plurality of through grooves penetrating through the body in the edge direction are formed in the body at intervals, and the section of each through groove is in a dumbbell shape with the two ends large and the middle small. A plurality of upper through holes and a plurality of lower through holes are correspondingly formed in the middle of the through groove, the upper through holes upwards penetrate through the body in the vertical direction, and the lower through holes downwards penetrate through the body in the vertical direction. The integrated under-rail base plate has the advantages of being simple in structure, convenient to machine, good in buffering performance and excellent in drainage capacity.

Description

Technical Field

[0001] The utility model belongs to the technical field of track components and relates to an integrated rail bottom pad. Background Art

[0002] Rail pads, also known as rail rubber pads, are elastic cushions under rails. Made of rubber or plastic, they serve as insulation and shock absorbers between the rails and the concrete subrails, compensating for the lack of rigidity in concrete.

[0003] Existing rail pads are all solid structures, and a complete buffer structure is formed by combining multiple rail pad assemblies. This combined rail pad has limited buffering performance and is difficult to drain. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an integrated rail underlay plate, which has the advantages of simple structure, convenient processing, good buffering performance and excellent drainage capacity.

[0005] In order to solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0006] The integrated rail bottom pad includes a square plate-shaped body, in which a plurality of through slots are arranged at intervals along the edge direction and penetrate the body. The cross section of the through slot is a dumbbell shape with larger ends and smaller middle. The middle of the through slot is respectively provided with a plurality of upper through holes and a plurality of lower through holes. The upper through holes penetrate the body upward in the vertical direction, and the lower through holes penetrate the body downward in the vertical direction.

[0007] In the above-mentioned integrated rail pad, preferably, the through groove passes through the body along the width direction.

[0008] In the above-mentioned integrated rail bottom pad, the upper through holes corresponding to adjacent through slots are staggered, the corresponding lower through holes are staggered, and the upper through holes and lower through holes corresponding to the same through slot are staggered.

[0009] In the above-mentioned integrated rail pad, the through grooves are arranged symmetrically along the vertical symmetry plane and symmetrically along the horizontal symmetry plane.

[0010] In the above-mentioned integrated rail bottom pad, the axes of the upper through hole and the lower through hole of the through groove corresponding to each other are located in the vertical symmetry plane; the horizontal symmetry plane of the through groove is the same plane as the horizontal symmetry plane of the body.

[0011] In the aforementioned integrated rail pad, the upper and lower sidewalls of the central portion of the through slot are both planes. The upper sidewalls at both ends of the through slot comprise upwardly curved arcuate surfaces, while the lower sidewalls comprise downwardly curved arcuate surfaces. Furthermore, the outer portions of the upper and lower sidewalls of the through slot are planes, while the inner portions are connected to the plane of the central portion of the through slot via an arcuate surface.

[0012] In the above-mentioned integrated rail pad, the ratio of the maximum height of the through groove end to the body thickness is 1:1.5-1:1.2; the ratio of the height of the middle part of the through groove to the body thickness is 1:3-1:10; the ratio of the dimension of the through groove along the length direction of the body to the body thickness is 2:1-4:1.

[0013] In the above-mentioned integrated rail pad, the numbers of the through grooves, upper through holes and lower through holes are determined according to the specifications of the body and the use environment.

[0014] In the above-mentioned integrated rail bottom pad, the main body is integrally injection-molded, and the through groove is simultaneously formed. Furthermore, the upper through hole and the lower through hole are punched by a punching device after injection molding.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model provides an integrated rail pad with multiple through-slot structures within it, which are more easily elastically deformed when subjected to force, resulting in better buffering performance. Furthermore, the through-slots of this utility model adopt a dumbbell-shaped structure. After sufficient elastic deformation, the middle portions of the through-slots will collide with each other, preventing excessive deformation of the rail pad.

[0017] 2. The utility model further provides an upper through hole and a lower through hole. The accumulated water can enter the through groove through the upper through hole or the lower through hole and then be discharged through the two ends of the through groove, thereby enhancing the drainage performance of the rail pad.

[0018] 3. The utility model adopts the method of injection molding to form an integral piece, and no longer uses a combined rail bottom pad composed of multiple components, so that the processing and assembly efficiency is higher and the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model along the longitudinal direction;

[0021] Figure 3 It is a cross-sectional view of the utility model along the horizontal direction;

[0022] Figure 4 yes Figure 3 A partial enlarged view of

[0023] Figure numerals: 1, main body; 2, through groove; 3, upper through hole; 4, lower through hole. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to specific embodiments of the present invention. Figure 1 :

[0025] The integrated rail bottom pad includes a square plate-shaped body 1, in which a plurality of through slots 2 are arranged at intervals along the edge direction and pass through the body 1. The cross-section of the through slot 2 is a dumbbell shape with large ends and a small middle. The middle of the through slot 2 is respectively provided with a plurality of upper through holes 3 and a plurality of lower through holes 4. The upper through holes 3 pass through the body 1 upward in the vertical direction, and the lower through holes 4 pass through the body 1 downward in the vertical direction.

[0026] Compare with Figure 1 When subjected to external forces, the main body 1 of the rail pad undergoes elastic deformation due to the impact. The through-slot 2 structure within the main body 1 provides more room for deformation, resulting in better cushioning performance. When the external force is large, because the through-slot 2 is a dumbbell-shaped structure with larger ends and a smaller middle, the middle of the through-slot 2 will collide with each other, thus preventing excessive deformation of the rail pad. The through-slot 2 is connected to the upper area of ​​the rail pad through the upper through-hole 3 and to the lower area of ​​the rail pad through the lower through-hole 4. When accumulated water needs to be drained, it flows into the middle of the through-slot 2 through the upper through-hole 3 or the lower through-hole 4, then flows to the larger ends on both sides, and finally drains out of the two ends of the through-slot 2.

[0027] In this embodiment, the through slot 2 passes through the body 1 along the width direction.

[0028] In order to further enhance the drainage performance, the Figure 3 , the upper through holes 3 corresponding to the adjacent through slots 2 are staggered, and the corresponding lower through holes 4 are staggered. Figure 2 The upper through holes 3 and the lower through holes 4 corresponding to the same through slot 2 are arranged alternately.

[0029] The through groove 2 of this embodiment is preferably a symmetrical structure: the through groove 2 is symmetrically arranged along the vertical symmetry plane and symmetrically arranged along the horizontal symmetry plane.

[0030] Furthermore, the axes of the through slot 2 corresponding to the upper through hole 3 and the lower through hole 4 are both located in the vertical symmetry plane thereof; the horizontal symmetry plane of the through slot 2 is the same plane as the horizontal symmetry plane of the body 1 .

[0031] Furthermore, the upper and lower sidewalls of the middle portion of the through slot 2 are both planes, the upper sidewalls at both ends of the through slot 2 include upwardly curved arcuate surfaces, and the lower sidewalls include downwardly curved arcuate surfaces. Furthermore, the outer portions of the upper and lower sidewalls of the through slot 2 are planes, and the inner portions are connected to the outer planes and the plane of the middle portion of the through slot 2 via an arcuate surface.

[0032] Compare with Figure 4 The body 1 has a thickness of D1, the maximum height of the through-slot 2 at its ends is D2, the height of the through-slot 2 at its middle is D3, and the dimension of the through-slot 2 along the length of the body 1 is D4. In this embodiment, the dimensions of the through-slot 2 are configured as follows: the ratio of the maximum height of the through-slot 2 at its ends to the thickness of the body 1 is 1:1.5-1:1.2; the ratio of the height of the through-slot 2 at its middle to the thickness of the body 1 is 1:3-1:10; and the ratio of the dimension of the through-slot 2 along the length of the body 1 to the thickness of the body 1 is 2:1-4:1.

[0033] The numbers of the through slots 2 , upper through holes 3 and lower through holes 4 are determined according to the specifications of the body 1 and the use environment.

[0034] The rail pad of this embodiment is prepared by the following method: the main body 1 is integrally injection-molded, and the through groove 2 is simultaneously formed. Furthermore, the upper through hole 3 and the lower through hole 4 are punched by a punching device after injection molding.

[0035] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. Integrated rail pad, characterized by: The invention comprises a square plate-shaped body (1), wherein a plurality of through slots (2) are arranged in the body (1) at intervals and pass through the body in the direction of the edge, wherein the cross section of the through slot (2) is in the shape of a dumbbell with large ends and a small middle, and a plurality of upper through holes (3) and a plurality of lower through holes (4) are respectively arranged in the middle of the through slot (2), wherein the upper through holes (3) pass through the body (1) upward in the vertical direction, and the lower through holes (4) pass through the body (1) downward in the vertical direction.

2. The integrated rail pad according to claim 1, characterized in that: The upper through holes (3) corresponding to adjacent through slots (2) are arranged in a staggered manner, and the corresponding lower through holes (4) are arranged in a staggered manner; the upper through holes (3) and lower through holes (4) corresponding to the same through slot (2) are arranged in a staggered manner.

3. The integrated rail pad according to claim 1, characterized in that: The through grooves (2) are arranged symmetrically along the vertical symmetry plane and symmetrically along the horizontal symmetry plane.

4. The integrated rail pad according to claim 3, characterized in that: The axes of the through slot (2) corresponding to the upper through hole (3) and the lower through hole (4) are both located on their vertical symmetry planes; the horizontal symmetry plane of the through slot (2) is the same plane as the horizontal symmetry plane of the body (1).

5. The integrated rail pad according to claim 1, characterized in that: The upper side wall and the lower side wall in the middle of the through slot (2) are both planes, and the upper side walls at both ends of the through slot (2) include arcuate surfaces that bend upward, and the lower side walls include arcuate surfaces that bend downward.

6. The integrated rail pad according to claim 1, characterized in that: The ratio of the maximum height of the end of the through groove (2) to the thickness of the body (1) is 1:1.5-1:1.2; the ratio of the height of the middle of the through groove (2) to the thickness of the body (1) is 1:3-1:10; and the ratio of the dimension of the through groove (2) along the length direction of the body (1) to the thickness of the body (1) is 2:1-4:

1.

7. The integrated rail pad according to claim 1, characterized in that: The main body (1) is integrally injection-molded, and the through groove (2) is simultaneously molded.

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