Steel fiber reinforced concrete sleeper

Abstract

The utility model relates to the technical field of concrete sleepers, and provides a steel fiber concrete sleeper which comprises a concrete base, a sleeper bottom block is fixedly connected to the top of the concrete base, a sleeper cushion block is placed on the top of the sleeper bottom block, a sleeper top block is placed on the top of the sleeper cushion block, and a steel fiber concrete sleeper is arranged on the concrete base. A connecting mechanism is arranged in the sleeper bottom block, and a positioning mechanism is arranged at the bottom of the sleeper cushion block. The connecting mechanism comprises a connecting frame, the connecting frame is of a U-shaped structure, and cavities are formed in the two sides of the sleeper bottom block. The rotating shaft can rotate through the rotating block, the threaded rod can rotate through rotation of the rotating shaft, the connecting frame can slide in the inner wall of the cavity through rotation of the threaded rod, and after the connecting frame slides into the connecting groove through the inner wall of the connecting opening, the sleeper top block, the sleeper cushion block and the sleeper bottom block can be fixed. And the effect of facilitating operation of workers can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete sleepers, and particularly relates to a steel fiber concrete sleeper. Background Art

[0002] The sleeper is placed under the rail and is an important component for supporting the rail and spreading the load received by the rail to the ballast bed. It is one of the main components of the railway track. According to the different production materials, the sleepers are mainly of two types: wooden sleepers and reinforced concrete sleepers. There is a need for a steel fiber concrete sleeper.

[0003] It is known that the Chinese publicly authorized utility model: (Publication No.: CN212223469U) a movable bearing rail groove sleeper, which includes sleeper blocks arranged at intervals transversely and connected into an integral body by a connecting device. The sleeper block is a combined sleeper block composed of a sleeper top block, a cushion plate and a sleeper bottom block arranged in sequence from top to bottom. The sleeper bottom block has a sleeper sinking groove for accommodating the bottom of the sleeper top block. The sleeper top block and the sleeper bottom block are connected into an integral body by an anchoring member, and the anchoring member consists of a bolt and a washer.

[0004] However, it is found that the above device has the following problems in the implementation of related technologies: In the prior art during use, the sleeper top block and the sleeper bottom block are connected by bolts, and it is necessary for the staff to use tools to perform frequent and repeated installation operations, which is not convenient for the staff to operate. There is a need for a steel fiber concrete sleeper. Summary of the Utility Model

[0005] The utility model provides a steel fiber concrete sleeper, which solves the problem in the related technology that it is necessary for the staff to use tools to perform frequent and repeated installation operations, which is not convenient for the staff to operate.

[0006] The technical solution of the utility model is as follows: A steel fiber concrete sleeper includes a concrete base. A sleeper bottom block is fixedly connected to the top of the concrete base. A sleeper cushion block is placed on the top of the sleeper bottom block. A sleeper top block is placed on the top of the sleeper cushion block. A connecting mechanism is arranged in the sleeper bottom block, and a positioning mechanism is arranged at the bottom of the sleeper cushion block;

[0007] The connecting mechanism includes a connecting frame. The connecting frame has a U-shaped structure. Cavities are respectively opened in both sides of the sleeper bottom block. Connecting ports extending into the cavities are respectively opened at the top and bottom of the inner walls on both sides of the sleeper bottom block. Connecting grooves are respectively opened at the top and bottom of both sides of the sleeper cushion block. A sliding fit is formed between the inner wall of the connecting groove and the horizontal end of the connecting frame, and a sliding fit is formed between the vertical end of the connecting frame and the inner wall of the cavity, which can achieve the effect of facilitating the operation of the staff.

[0008] Preferably, one inner wall of the cavity is rotatably connected to a threaded rod through a bearing, and the threaded rod is threadedly connected to the connecting frame. The arrangement of the threaded rod enables the connecting frame to move within the inner wall of the cavity.

[0009] Preferably, one side of the threaded rod is fixedly connected to a rotating shaft, and one side of the rotating shaft is fixedly connected to a rotating block. The arrangement of the rotating shaft enables the threaded rod to rotate.

[0010] Preferably, a number of uniformly distributed limiting ports are circumferentially formed on one side of the rotating block, and limiting rods are hinged to the tops of both sides of the sleeper bottom block. The limiting rods form a sliding fit with the inner wall of the limiting ports. The arrangement of the limiting rods enables the connecting frame to be stably placed.

[0011] Preferably, one side of the limiting rod is fixedly connected to a limiting spring, and the limiting spring is fixedly connected to the outer wall of the sleeper bottom block. The arrangement of the limiting spring enables the limiting rod to be stably placed within the inner wall of the limiting port.

[0012] Preferably, the positioning mechanism includes a number of uniformly distributed positioning blocks. Corresponding positioning grooves are formed at the bottom of the sleeper cushion block, and corresponding fixing grooves are formed at the top of the sleeper bottom block. The inner walls of the fixing grooves and the positioning grooves both form a sliding fit with the positioning blocks. The arrangement of the positioning blocks enables a limit to be formed between the sleeper cushion block and the sleeper bottom block.

[0013] Preferably, a fixing spring is fixedly connected to the top inner wall of the fixing groove, and the fixing spring is fixedly connected to the positioning block. The arrangement of the fixing spring enables the positioning block to be stably placed within the positioning groove.

[0014] The working principle and beneficial effects of the present utility model are as follows:

[0015] By rotating the rotating block, the rotating shaft can be rotated. The rotation of the rotating shaft enables the threaded rod to rotate. The rotation of the threaded rod enables the connecting frame to slide within the inner wall of the cavity. After the connecting frame slides through the inner wall of the connecting port into the connecting groove, the sleeper top block can be fixed to the sleeper cushion block and the sleeper bottom block. Therefore, the effect of facilitating the operation of the staff can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further elaborates on the present utility model in detail in conjunction with the drawings and specific embodiments.

[0017] Figure 1 is a schematic three-dimensional structure diagram proposed for the present utility model;

[0018] Figure 2 is a schematic structure diagram of the connecting frame proposed for the present utility model;

[0019] Figure 3For Figure 2 The enlarged structural schematic diagram of part A in

[0020] Figure 4 The structural schematic diagram of the rotating shaft proposed by the present utility model;

[0021] In the figure: 1, sleeper bottom block; 2, sleeper cushion block; 3, sleeper top block; 4, connecting frame; 5, cavity; 6, connecting port; 7, connecting groove; 8, threaded rod; 9, rotating shaft; 10, rotating block; 11, limiting port; 12, limiting rod; 13, limiting spring; 14, positioning block; 15, positioning groove; 16, fixing groove; 17, fixing spring. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1

[0024] Please refer to Figure 1 - Figure 4 , a steel fiber concrete sleeper, including a concrete base, a sleeper bottom block 1 is fixedly connected to the top of the concrete base, a sleeper cushion block 2 is placed on the top of the sleeper bottom block 1, a sleeper top block 3 is placed on the top of the sleeper cushion block 2, a connecting mechanism is arranged in the sleeper bottom block 1, and a positioning mechanism is arranged at the bottom of the sleeper cushion block 2;

[0025] The connecting mechanism includes a connecting frame 4, the connecting frame 4 is in a U-shaped structure, cavities 5 are respectively opened in both sides of the sleeper bottom block 1, connecting ports 6 extending into the cavities 5 are respectively opened at the top and bottom of the inner walls on both sides of the sleeper bottom block 1, connecting grooves 7 are respectively opened at the top and bottom of both sides of the sleeper cushion block 2, and sliding fits are respectively formed between the inner walls of the connecting grooves 7 and the inner walls of the connecting ports 6 and the horizontal ends of the connecting frame 4, and a sliding fit is formed between the vertical ends of the connecting frame 4 and the inner walls of the cavities 5.

[0026] A steel fiber concrete sleeper provided by the utility model, when in use, place the sleeper cushion block 2 above the sleeper bottom block 1, align the positioning block 14 with the inner wall of the positioning groove 15 and insert it into the positioning groove 15, which can limit the position between the sleeper cushion block 2 and the sleeper bottom block 1. Then place the sleeper top block 3 on the sleeper cushion block 2, rotate the limiting rod 12 to separate it from the inner wall of the limiting port 11, and then rotate the rotating block 10 to make the rotating shaft 9 rotate. The rotation of the rotating shaft 9 can make the threaded rod 8 rotate, and the rotation of the threaded rod 8 can make the connecting frame 4 slide on the inner wall of the cavity 5. After the connecting frame 4 slides through the inner wall of the connecting port 6 into the connecting groove 7, the sleeper top block 3 can be fixed to the sleeper cushion block 2 and the sleeper bottom block 1. Therefore, the effect of facilitating the operation of the staff can be achieved.

[0027] Further, one inner wall of the cavity 5 is rotatably connected with a threaded rod 8 through a bearing, and the threaded rod 8 is threadedly connected with the connecting frame 4.

[0028] Specifically, the threaded rod 8 can apply force to the connecting frame 4 when rotating, and the connecting frame 4 can move on the inner wall of the cavity 5.

[0029] Further, one side of the threaded rod 8 is fixedly connected with a rotating shaft 9, and one side of the rotating shaft 9 is fixedly connected with a rotating block 10.

[0030] Specifically, the rotating shaft 9 can rotate when the rotating block 10 rotates. At this time, the rotating shaft 9 rotates, and the threaded rod 8 can be rotated.

[0031] Further, a number of uniformly distributed limiting ports 11 are circumferentially arranged on one side of the rotating block 10, and limiting rods 12 are hinged to the top of both sides of the sleeper bottom block 1, and the limiting rods 12 form a sliding fit with the inner wall of the limiting ports 11.

[0032] Specifically, after the limiting rod 12 rotates into the limiting port 11, it can limit the rotating block 10, prevent the rotating block 10 from rotating, and make the connecting frame 4 placed stably.

[0033] Further, one side of the limiting rod 12 is fixedly connected with a limiting spring 13, and the limiting spring 13 is fixedly connected with the outer wall of the sleeper bottom block 1.

[0034] Specifically, the limiting spring 13 can apply a pulling force to the limiting rod 12, so that the limiting rod 12 is placed stably on the inner wall of the limiting port 11.

[0035] Embodiment Two

[0036] Based on Embodiment 1, this embodiment includes: The positioning mechanism includes a number of uniformly distributed positioning blocks 14. The bottom of the sleeper cushion block 2 is provided with positioning grooves 15 corresponding one-to-one to the positioning blocks 14. The top of the sleeper bottom block 1 is provided with fixing grooves 16 corresponding one-to-one to the positioning grooves 15. The inner walls of the fixing grooves 16 and the positioning grooves 15 and the positioning blocks 14 all form a sliding fit. The top inner wall of the fixing groove 16 is fixedly connected with a fixing spring 17, and the fixing spring 17 is fixedly connected with the positioning block 14.

[0037] The technical solution provided in this embodiment is: The positioning block 14 can slide into the positioning groove 15 through the inner wall of the fixing groove 16. At this time, a limit can be formed between the sleeper cushion block 2 and the sleeper bottom block 1. The fixing spring 17 can apply a pressure to the positioning block 14, so that the positioning block 14 can be stably placed in the positioning groove 15.

[0038] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A steel fiber concrete sleeper, comprising a concrete base, a sleeper bottom block (1) is fixedly connected to the top of the concrete base, a sleeper pad (2) is placed on the top of the sleeper bottom block (1), and a sleeper top block (3) is placed on the top of the sleeper pad (2), characterized in that: A connecting mechanism is provided inside the sleeper bottom block (1), and a positioning mechanism is provided at the bottom of the sleeper pad block (2); The connection mechanism comprises a connection frame (4), the connection frame (4) is in a U-shaped structure, cavities (5) are provided in both sides of the sleeper bottom block (1), the top and bottom of the inner walls on both sides of the sleeper bottom block (1) are provided with connection openings (6) extending into the cavities (5), the top and bottom of the inner walls on both sides of the sleeper pad block (2) are provided with connection grooves (7), the inner walls of the connection grooves (7) and the inner walls of the connection openings (6) are slidably matched with the horizontal ends of the connection frame (4), and the vertical ends of the connection frame (4) are slidably matched with the inner walls of the cavities (5).

2. A steel fiber concrete sleeper according to claim 1, characterized in that: A threaded rod (8) is rotatably connected to an inner wall of one side of the cavity (5) via a bearing, and the threaded rod (8) is connected to the connecting frame (4) via a thread.

3. A steel fiber concrete sleeper according to claim 2, characterized in that: One side of the threaded rod (8) is fixedly connected to a rotating shaft (9), and one side of the rotating shaft (9) is fixedly connected to a rotating block (10).

4. A steel fiber concrete sleeper according to claim 3, characterized in that: A plurality of evenly distributed limiting openings (11) are provided on the circumference of one side of the rotating block (10), and limiting rods (12) are hingedly connected to the tops of both sides of the rail sleeper bottom block (1), and the limiting rods (12) form a sliding fit with the inner walls of the limiting openings (11).

5. The steel fiber concrete sleeper according to claim 4, characterized in that: One side of the limit rod (12) is fixedly connected to a limit spring (13), and the limit spring (13) is fixedly connected to the outer wall of the sleeper bottom block (1).

6. The steel fiber concrete sleeper according to claim 1, characterized in that: The positioning mechanism comprises a plurality of evenly distributed positioning blocks (14); a positioning groove (15) corresponding to the positioning blocks (14) is provided at the bottom of the sleeper pad block (2); a fixing groove (16) corresponding to the positioning groove (15) is provided at the top of the sleeper bottom block (1); the inner wall of the fixing groove (16) and the inner wall of the positioning groove (15) are both in sliding fit with the positioning blocks (14).

7. The steel fiber concrete sleeper according to claim 6, characterized in that: A fixing spring (17) is fixedly connected to the top inner wall of the fixing groove (16), and the fixing spring (17) is fixedly connected to the positioning block (14).

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