Double-block type sleeper

Abstract

The utility model discloses a double-block type sleeper, and belongs to the field of ballastless tracks of high-speed railways, the double-block type sleeper comprises a first concrete sleeper block, a second concrete sleeper block is arranged on one side of the first concrete sleeper block, a connecting mechanism is arranged between the second concrete sleeper block and the first concrete sleeper block, and the connecting mechanism comprises an inserting groove; the inserting groove is formed in the surface of the first concrete sleeper block, the inserting groove, the binding material and the inserting block are arranged, the inserting block on the surface of the second concrete sleeper block is inserted into the inserting groove in the surface of the first concrete sleeper block, and then the first concrete sleeper block and the second concrete sleeper block are bonded together through the binding material. The problems that at present, a common double-block type sleeper is mainly formed by connecting two prefabricated concrete blocks through a connecting steel bar or a mortise and tenon joint structure, in the long-time using process, the connecting position of the two prefabricated concrete blocks is prone to damage, and consequently the service life of the sleeper is shortened are solved, and practicability is improved.

Description

Technical Field

[0001] This application relates to the technical field of ballastless tracks for high-speed railways, and particularly to a double-block sleeper. Background Art

[0002] A sleeper, also known as a crosstie, is also a kind of railway fitting. It is an important part of a railway track and is used to support the rail and maintain its geometric position. Traditional wooden sleepers have gradually been replaced by concrete sleepers. Among them, double-block sleepers have been widely used in modern rail transit due to their structural characteristics and excellent load-bearing performance.

[0003] Currently, common double-block sleepers are mainly composed of two precast concrete blocks connected by connecting steel bars or mortise and tenon structures. Although this structure has a certain load-bearing capacity, during long-term use, the connection between the two precast concrete blocks is prone to damage, resulting in a reduced service life of the sleeper. Utility Model Content

[0004] Aiming at the deficiencies of the prior art, the present utility model provides a double-block sleeper, which overcomes the deficiencies of the prior art and aims to solve the problems in the background art.

[0005] To achieve the above object, the present application adopts the following technical solution: A double-block sleeper includes a first concrete sleeper block. A second concrete sleeper block is provided on one side of the first concrete sleeper block. A connection mechanism is provided between the second concrete sleeper block and the first concrete sleeper block. The connection mechanism includes an insertion groove, which is opened on the surface of the first concrete sleeper block. The inside of the insertion groove is filled with a bonding material. An insertion block is provided inside the bonding material, and the insertion block is fixedly connected to the second concrete sleeper block. Fixing mechanisms are provided on one side of both the first concrete sleeper block and the second concrete sleeper block. Rails are provided on the surfaces of both the first concrete sleeper block and the second concrete sleeper block. Moving mechanisms are symmetrically provided on both sides of the rails. A rail fixing mechanism is provided on the top of the moving mechanism. A limiting mechanism is provided at the connection between the second concrete sleeper block and the first concrete sleeper block.

[0006] As a preferred embodiment, a certain proportion of fiber-reinforced materials, such as carbon fiber, glass fiber, etc., are added to the bonding material.

[0007] By adopting the above technical solution, a certain proportion of fiber-reinforced materials, such as carbon fiber, glass fiber, etc., are added to the bonding material. These fiber-reinforced materials can effectively improve the tensile strength and toughness of the bonding material, thereby further enhancing the stability of the connection and better enhancing the stability of the connection.

[0008] As a preferred embodiment, a feed hole and an exhaust hole are formed on the surface of the insertion groove. The feed hole and the exhaust hole are symmetrically arranged on the surface of the insertion groove, and a plug post is arranged inside the feed hole and the exhaust hole.

[0009] By adopting the above technical solution, a feed hole and an exhaust hole are formed on the surface of the insertion groove, and then the bonding material is replaced according to the actual situation, such as different types of bonding materials such as high-strength epoxy resin and polyurethane. Then, the air is discharged through the exhaust hole to prevent air bubbles from appearing inside the bonding material, so that the bonding material can be better replaced according to the actual situation.

[0010] As a preferred embodiment, the fixing mechanism includes a fixing block. The fixing block is fixedly connected to the first concrete sleeper block. A ground nail is slidably connected inside the fixing block, and the bottom of the ground nail is conical.

[0011] By adopting the above technical solution, the ground nail is fixed by the fixing block, then the ground nail is inserted into the ground to fix the fixing block, and then the fixing block fixes the first concrete sleeper block, so that the first concrete sleeper block can be better fixed.

[0012] As a preferred embodiment, the moving mechanism includes a fixing plate. The fixing plate is slidably connected to the first concrete sleeper block. A slider is fixedly connected to the bottom of the fixing plate. A first bolt is threadedly connected inside the fixing plate, and the first bolt penetrates through the slider.

[0013] By adopting the above technical solution, the slider slides inside the first concrete sleeper block to drive the fixing plate to move, and then the first bolt is rotated so that the first bolt inserts into the first concrete sleeper block to fix the fixing plate, so that the position of the fixing plate can be better adjusted.

[0014] As a preferred embodiment, the rail fixing mechanism includes a limiting block. The limiting block is slidably connected to the fixing plate. A second bolt is threadedly connected inside the limiting block. The second bolt penetrates through the limiting block, and the second bolt is threadedly connected to the fixing plate.

[0015] By adopting the above technical solution, the second bolt is rotated so that the second bolt enters the inside of the fixing plate to fix the limiting block, and then the limiting block fixes the rail, so that the rail can be better fixed.

[0016] As a preferred embodiment, the limiting mechanism includes an upper limit frame, which is sleeved at the connection between the first concrete sleeper block and the second concrete sleeper block, the bottom of the upper limit frame is slidably connected to the lower limit frame, the surface of the upper limit frame is fixedly connected to the first positioning block, the outside of the first positioning block is slidably connected to the second positioning block, the second positioning block is fixedly connected to the lower limit frame, the inside of the first positioning block is fixedly connected to a spring, one side of the spring is fixedly connected to a third positioning block, and the third positioning block is slidably connected to the first positioning block.

[0017] By adopting the above technical solution, the upper limit frame and the lower limit frame are connected by inserting the first positioning block on the surface of the upper limit frame into the second positioning block on the surface of the lower limit frame, and then the third positioning block is supported by a spring, and then the third positioning block is abutted against the second positioning block to limit the first positioning block. When disassembly is required, the third positioning block is pressed to make the third positioning block enter the interior of the upper limit frame, and then the upper limit frame is pulled to make the first positioning block detach from the interior of the second positioning block, and the disassembly is completed, so that the first concrete sleeper block and the second concrete sleeper block can be better positioned.

[0018] Beneficial effects of this application:

[0019] 1. The double-block sleeper is provided with an insertion groove, a bonding material and an insertion block. The insertion block on the surface of the second concrete sleeper block is inserted into the insertion groove on the surface of the first concrete sleeper block, and the first concrete sleeper block and the second concrete sleeper block are bonded together by the bonding material. This avoids the problem that the connection between the two prefabricated concrete blocks is easily damaged during long-term use, resulting in a reduction in the service life of the sleeper, and improves practicality.

[0020] 2. This double-block sleeper is provided with an upper limit frame, a first positioning block, a second positioning block, a spring, a third positioning block and a lower limit frame. The upper limit frame and the lower limit frame are connected by inserting the first positioning block on the surface of the upper limit frame into the second positioning block on the surface of the lower limit frame. The third positioning block is then supported by the spring. The first positioning block is then limited by the third positioning block against the second positioning block. When disassembly is required, the third positioning block is pressed to enter the upper limit frame. The upper limit frame is then pulled to separate the first positioning block from the second positioning block. The disassembly is completed. This avoids the problem of manual alignment required during connection of the current common double-block sleepers, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front structure of this application;

[0022] Figure 2 Front structural sectional view of the present application;

[0023] Figure 3 Side structural sectional view of the present application;

[0024] Figure 4 Schematic structural diagram of the limiting mechanism of the present application.

[0025] Reference numerals in the figure: 1, first concrete sleeper block; 2, second concrete sleeper block; 3, fixing mechanism; 31, ground nail; 32, fixing block; 4, connecting mechanism; 41, insertion groove; 42, bonding material; 43, insertion block; 5, moving mechanism; 51, fixing plate; 52, slider; 53, first bolt; 6, rail fixing mechanism; 61, limiting block; 62, second bolt; 7, limiting mechanism; 71, upper limiting frame; 72, first positioning block; 73, second positioning block; 74, spring; 75, third positioning block; 76, lower limiting frame; 8, feeding hole; 9, exhaust hole; 10, rail. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0027] Referring to Figures 1 - 3 , a double-block sleeper includes a first concrete sleeper block 1. A second concrete sleeper block 2 is provided on one side of the first concrete sleeper block 1. A connecting mechanism 4 is provided between the second concrete sleeper block 2 and the first concrete sleeper block 1. The connecting mechanism 4 includes an insertion groove 41. The insertion groove 41 is opened on the surface of the first concrete sleeper block 1. A bonding material 42 is filled in the insertion groove 41. An insertion block 43 is provided in the bonding material 42. The insertion block 43 is fixedly connected to the second concrete sleeper block 2. A certain proportion of fiber-reinforced materials, such as carbon fiber, glass fiber, etc., are added to the bonding material 42; by adding a certain proportion of fiber-reinforced materials, such as carbon fiber, glass fiber, etc., to the bonding material 42, and then these fiber-reinforced materials effectively improve the tensile strength and toughness of the bonding material, thereby further enhancing the stability of the connection, and can better enhance the stability of the connection.

[0028] Referring to Figures 1 - 3, the surface of the insertion groove 41 is provided with a feed hole 8 and an exhaust hole 9. The feed hole 8 and the exhaust hole 9 are symmetrically arranged on the surface of the insertion groove 41, and a plug post is provided inside the feed hole 8 and the exhaust hole 9. By providing the feed hole 8 and the exhaust hole 9 on the surface of the insertion groove 41, and then replacing the bonding material 42 according to the actual situation, such as different types of bonding materials such as high-strength epoxy resin and polyurethane, and then discharging the air through the exhaust hole 9 to prevent air bubbles from appearing inside the bonding material 42, the bonding material 42 can be better replaced according to the actual situation.

[0029] Refer to Figures 1 - 3 , fixing mechanisms 3 are provided on one side of the first concrete sleeper block 1 and the second concrete sleeper block 2. The fixing mechanism 3 includes a fixing block 32. The fixing block 32 is fixedly connected to the first concrete sleeper block 1. A ground nail 31 is slidably connected inside the fixing block 32, and the bottom of the ground nail 31 is conical. By fixing the ground nail 31 through the fixing block 32, then inserting the ground nail 31 into the ground to fix the fixing block 32, and then fixing the first concrete sleeper block 1 through the fixing block 32, the first concrete sleeper block 1 can be better fixed.

[0030] Refer to Figures 1 - 3 , rails 10 are provided on the surfaces of the first concrete sleeper block 1 and the second concrete sleeper block 2. Moving mechanisms 5 are symmetrically provided on both sides of the rails 10. The moving mechanism 5 includes a fixing plate 51. The fixing plate 51 is slidably connected to the first concrete sleeper block 1. A slider 52 is fixedly connected to the bottom of the fixing plate 51. A first bolt 53 is threadedly connected inside the fixing plate 51, and the first bolt 53 penetrates through the slider 52. By sliding the slider 52 inside the first concrete sleeper block 1 to drive the fixing plate 51 to move, and then rotating the first bolt 53 to insert the first bolt 53 into the first concrete sleeper block 1 to fix the fixing plate 51, the position of the fixing plate 51 can be better adjusted.

[0031] Refer to Figures 1 - 3 , a rail fixing mechanism 6 is provided on the top of the moving mechanism 5. The rail fixing mechanism 6 includes a limiting block 61. The limiting block 61 is slidably connected to the fixing plate 51. A second bolt 62 is threadedly connected inside the limiting block 61. The second bolt 62 penetrates through the limiting block 61, and the second bolt 62 is threadedly connected to the fixing plate 51. By rotating the second bolt 62 to make the second bolt 62 enter the inside of the fixing plate 51 to fix the limiting block 61, and then fixing the rail 10 through the limiting block 61, the rail 10 can be better fixed.

[0032] Refer to Figures 2 - 4A limiting mechanism 7 is provided at the connection between the second concrete sleeper block 2 and the first concrete sleeper block 1. The limiting mechanism 7 includes an upper limit frame 71, which is sleeved at the connection between the first concrete sleeper block 1 and the second concrete sleeper block 2. The bottom of the upper limit frame 71 is slidably connected with a lower limit frame 76. A first positioning block 72 is fixedly connected to the surface of the upper limit frame 71. A second positioning block 73 is slidably connected to the outside of the first positioning block 72. The second positioning block 73 is fixedly connected to the lower limit frame 76. A spring 74 is fixedly connected to the inside of the first positioning block 72. A third positioning block 75 is fixedly connected to one side of the spring 74. The third positioning block 75 is connected to the first positioning block 7 2 Sliding connection; the upper limit frame 71 and the lower limit frame 76 are connected by inserting the first positioning block 72 on the surface of the upper limit frame 71 into the second positioning block 73 on the surface of the lower limit frame 76, and then the third positioning block 75 is supported by the spring 74, and then the third positioning block 75 is against the second positioning block 73 to limit the first positioning block 72. When disassembly is required, the third positioning block 75 is pressed to make the third positioning block 75 enter the interior of the upper limit frame 71, and then the upper limit frame 71 is pulled to make the first positioning block 72 disengage from the interior of the second positioning block 73, so that the disassembly is completed, and the first concrete sleeper block 1 and the second concrete sleeper block 2 can be better positioned.

[0033] Working principle: The upper limit frame 71 is connected to the lower limit frame 76 by inserting the first positioning block 72 on the surface of the upper limit frame 71 into the second positioning block 73 on the surface of the lower limit frame 76, and then the third positioning block 75 is supported by the spring 74, and then the third positioning block 75 is against the second positioning block 73 to limit the first positioning block 72, and the adhesive material 42 is transported from the feed hole 8 to the inside of the insertion groove 41. The air is then discharged through the exhaust hole 9, and then the insertion block 43 on the surface of the second concrete sleeper block 2 is inserted into the insertion groove 41 on the surface of the first concrete sleeper block 1, and then the first concrete sleeper block 1 and the second concrete sleeper block 2 are adhered together by the adhesive material 42, and then the slider 52 slides inside the first concrete sleeper block 1 to drive the fixing plate 51 to move, and then the first bolt 53 is rotated to insert the first bolt 53 into the first concrete sleeper block 1 to fix the fixing plate 51, and then the second bolt 62 is rotated to enter the inside of the fixing plate 51 to fix the limit block 61, and then the limit block 61 fixes the rail 10, which can better fix the rail 10, and then the fixing block 32 fixes the ground nail 31, and then the ground nail 31 is inserted into the ground to fix the fixing block 32, and then the fixing block 32 fixes the first concrete sleeper block 1.

[0034] As described above, it is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution of the present application and its utility model concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present application.

Claims

1. A double-block sleeper, comprising a first concrete sleeper block (1), characterized in that: A second concrete sleeper block (2) is provided on one side of the first concrete sleeper block (1), a connecting mechanism (4) is provided between the second concrete sleeper block (2) and the first concrete sleeper block (1), the connecting mechanism (4) comprising an insertion groove (41), the insertion groove (41) being provided on the surface of the first concrete sleeper block (1), the interior of the insertion groove (41) being filled with a bonding material (42), an insertion block (43) being provided inside the bonding material (42), the insertion block (43) being fixedly connected to the second concrete sleeper block (2), a fixing mechanism (3) being provided on one side of the first concrete sleeper block (1) and the second concrete sleeper block (2), rails (10) being provided on the surfaces of the first concrete sleeper block (1) and the second concrete sleeper block (2), moving mechanisms (5) being symmetrically provided on both sides of the rails (10), a rail fixing mechanism (6) being provided on the top of the moving mechanism (5), and a limiting mechanism (7) being provided at the connection between the second concrete sleeper block (2) and the first concrete sleeper block (1).

2. A double-block sleeper according to claim 1, characterized in that: A certain proportion of fiber reinforcement material, such as carbon fiber, glass fiber, etc., is added to the bonding material (42).

3. A double-block sleeper according to claim 1, characterized in that: A feed hole (8) and an exhaust hole (9) are provided on the surface of the insertion groove (41); the feed hole (8) and the exhaust hole (9) are symmetrically arranged on the surface of the insertion groove (41); and plugs are provided inside the feed hole (8) and the exhaust hole (9).

4. A double-block sleeper according to claim 1, characterized in that: The fixing mechanism (3) comprises a fixing block (32), the fixing block (32) being fixedly connected to the first concrete sleeper block (1), the interior of the fixing block (32) being slidably connected to a ground nail (31), the bottom of the ground nail (31) being in a conical shape.

5. A double-block sleeper according to claim 1, characterized in that: The moving mechanism (5) comprises a fixing plate (51), the fixing plate (51) being slidably connected to the first concrete sleeper block (1), a sliding block (52) being fixedly connected to the bottom of the fixing plate (51), a first bolt (53) being internally threadedly connected to the fixing plate (51), and the first bolt (53) passing through the sliding block (52).

6. A double-block sleeper according to claim 1, characterized in that: The rail fixing mechanism (6) comprises a limit block (61), the limit block (61) is slidably connected to the fixing plate (51), the inner thread of the limit block (61) is connected to a second bolt (62), the second bolt (62) passes through the limit block (61), and the second bolt (62) is threadedly connected to the fixing plate (51).

7. A double-block sleeper according to claim 1, characterized in that: The limiting mechanism (7) comprises an upper limit frame (71), the upper limit frame (71) being sleeved at the connection between the first concrete sleeper block (1) and the second concrete sleeper block (2), the bottom of the upper limit frame (71) being slidably connected to a lower limit frame (76), the surface of the upper limit frame (71) being fixedly connected to a first positioning block (72), the outside of the first positioning block (72) being slidably connected to a second positioning block (73), the second positioning block (73) being fixedly connected to the lower limit frame (76), the inside of the first positioning block (72) being fixedly connected to a spring (74), one side of the spring (74) being fixedly connected to a third positioning block (75), the third positioning block (75) being slidably connected to the first positioning block (72).

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