High-strength metro long sleeper

Abstract

This utility model belongs to the field of subway sleeper technology and discloses a high-strength subway sleeper, including a subway sleeper body and two mounting parts integrally formed on the top of the subway sleeper. Mounting grooves are constructed on both sides of the subway sleeper body, and reinforcing plates are installed at the top and bottom of the mounting grooves. Multiple support plates are connected side-by-side between the two reinforcing plates. Two reinforcing rods are symmetrically connected to the side walls of the support plates, and the bottom of the reinforcing rods is connected to the top of the lower reinforcing plate. A connecting reinforcing hole is formed between the lower reinforcing plate and the bottom of the subway sleeper body, and a reinforcing cylinder is inserted between the corresponding reinforcing holes. A reinforcing screw is screwed to the inner side of the reinforcing cylinder. This solution solves the problem that while existing structures can prevent cracks after long-term use, the lack of reinforcement at the road surface connection point makes the connection prone to loosening after prolonged use.

Description

Technical Field

[0001] This utility model belongs to the field of subway long pillow technology, specifically a high-strength subway long pillow. Background Technology

[0002] Subway sleepers play multiple crucial roles in the subway system. They are the stable foundation of the track, ensuring the safety and stability of trains during high-speed operation by precisely fixing the track position. Because of their core functions such as fixing the track, distributing weight, and mitigating forces, they have become an indispensable and important component of the subway system. In order to ensure their long-term use, it is necessary to improve their structural strength.

[0003] Meanwhile, a prestressed subway sleeper structure with application number CN202121486693.1 includes a subway sleeper. A first reinforcing block is located on the right side of the bottom of the sleeper, and a second reinforcing block is located on the left side of the bottom of the sleeper. A connecting rod is fixedly connected to the left side of the first reinforcing block, a sliding rod is fixedly connected to the left side of the connecting rod, and a slider is fixedly connected to the left side of the sliding rod. A transmission block is sleeved on the surface of the slider, and a screw is fixedly connected to the left side of the transmission block. The left side of the screw extends through to the left side of the second reinforcing block and is threaded with a nut. This utility model solves the problem that most existing subway sleepers on the market develop cracks after prolonged use. When the cracks are large, they not only damage the stress structure of the sleeper but also allow rainwater to seep into the sleeper, causing corrosion of the reinforcing steel and further reducing the sleeper's load-bearing capacity, thus reducing the practicality of the subway sleeper to a certain extent. This invention achieves the effect of reinforcing the sleeper.

[0004] However, the following problems were found in the implementation of the relevant technologies: although the existing structure can avoid cracks after long-term use, the lack of reinforcement at the road surface joints makes them prone to loosening after long-term use. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a high-strength subway sleeper with additional reinforcing screws to strengthen the bottom. The reinforcing screws are also protected by a reinforcing sleeve, which prevents the force from directly acting on the reinforcing screws and causing the connection to loosen. This provides the advantage of a more stable connection with the ground.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-strength subway sleeper, comprising a subway sleeper body and two mounting parts integrally formed on the top of the subway sleeper. Mounting grooves are constructed on both sides of the subway sleeper body, and reinforcing plates are installed at the top and bottom of the mounting grooves. Multiple support plates are connected side-by-side between the two reinforcing plates. Two reinforcing rods are symmetrically connected to the side walls of the support plates, and the bottom of the reinforcing rods is connected to the top of the lower reinforcing plate. A connecting reinforcing hole is opened between the lower reinforcing plate and the bottom of the subway sleeper body, and a reinforcing cylinder is inserted between the corresponding reinforcing holes. A reinforcing screw is screwed onto the inner side of the reinforcing cylinder.

[0007] Preferably, the side wall of the reinforcing screw is fitted with a washer, and the washer is supported between the head of the reinforcing screw and the corresponding side of the reinforcing cylinder.

[0008] Preferably, the bottom of the reinforcing rod and the lower reinforcing plate, as well as the top of the reinforcing rod and the support plate, are fixed by welding, and the subway sleeper body and the mounting part are integrally cast.

[0009] Preferably, protective plates are hinged to both sides of the subway sleeper body, and a latch is installed between the protective plates and the corresponding sides of the subway sleeper body.

[0010] Preferably, a sign is attached to the side of the protective plate away from the subway sleeper body, and the surface of the sign is covered with a scratch-resistant film.

[0011] Preferably, a toolbox is installed at the top center of the subway sleeper body, and a top cover is hinged to the top of the toolbox.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses multiple support plates and reinforcing rods to buffer the force, which can reduce the force on the connection. At the same time, multiple reinforcing screws are added to reinforce the bottom of the subway sleeper body. The reinforcing screws are covered with reinforcing sleeves for protection, so that the force will not directly act on the reinforcing screws and cause the connection to loosen. The connection with the ground is not easy to loosen, and the connection is more stable.

[0014] 2. This utility model can cover multiple structures inside the mounting groove with a protective plate, preventing the structures inside the mounting groove from being exposed to the outside and causing weathering and corrosion. When maintenance is required, the protective plate can be opened. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the protective cover of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the reinforcing plate of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the reinforcing cylinder of this utility model;

[0019] Figure 5 This is an exploded view of the structure of the reinforcing cylinder of this utility model.

[0020] In the diagram: 1. Subway sleeper body; 2. Installation section; 3. Reinforcing plate; 4. Support plate; 5. Reinforcing rod; 6. Reinforcing cylinder; 7. Reinforcing screw; 8. Washer; 9. Protective plate; 10. Sign; 11. Tool box; 12. Top cover. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 5 As shown, this utility model provides a high-strength subway sleeper, including a subway sleeper body 1 and two mounting parts 2 integrally formed on the top of the subway sleeper. The mounting parts 2 are used for connection and installation with the track (not shown or described in detail because this is not an improvement direction). Mounting grooves are constructed on both sides of the subway sleeper body 1. Since the main stress-bearing parts of the subway sleeper body 1 are on both sides, mounting grooves are opened on both sides and corresponding structures are added. Reinforcing plates 3 are installed at the top and bottom of the mounting grooves. Multiple support plates 4 are arranged side-by-side between the two reinforcing plates 3 through multiple sets of screws to support the reinforcing plates 3 and improve stability. Two reinforcing rods 5 are symmetrically connected to the side wall of 4. The two reinforcing rods 5 can further increase the stability of the reinforcing plate 3. The bottom of the reinforcing rods 5 is connected to the top of the lower reinforcing plate 3. A connecting reinforcing hole is opened between the bottom of the lower reinforcing plate 3 and the bottom of the subway sleeper body 1. A reinforcing cylinder 6 is inserted between the corresponding reinforcing holes. The reinforcing cylinder 6 is located outside the reinforcing screw 7, which can avoid the force from acting directly on the reinforcing screw 7, ensuring that the connection between the reinforcing screw 7 and the ground is more stable and effectively preventing the connection from loosening. The inner wall of the reinforcing cylinder 6 has threads, and the reinforcing screw 7 is screwed to the inner side of the reinforcing cylinder 6.

[0023] Specifically, the side wall of the reinforcing screw 7 is fitted with a washer 8, and the washer 8 is supported between the head of the reinforcing screw 7 and the corresponding side of the reinforcing cylinder 6. The washer 8 can prevent the reinforcing screw 7 from being tightened too much, which would make it inconvenient to remove it later.

[0024] Furthermore, the bottom of the reinforcing rod 5 and the lower reinforcing plate 3, as well as the top of the reinforcing rod 5 and the support plate 4, are all fixed by welding. The welding connection method is more stable. The subway sleeper body 1 and the installation part 2 are integrally cast structures. The integrally cast structures have high strength and are not easily damaged.

[0025] Furthermore, protective plates 9 are connected to both sides of the subway sleeper body 1. The protective plates 9 can cover the structure inside the mounting groove to protect it from exposure to the outside, which would lead to weathering and corrosion. In addition, there are latches installed between the protective plates 9 and the corresponding sides of the subway sleeper body 1. The protective plates 9 can be opened by opening the latches.

[0026] It is worth noting that a label 10 is attached to the side of the protective plate 9 away from the subway sleeper body 1. The label 10 is marked with a serial number, which makes it easy for maintenance personnel to find the information quickly. In addition, the surface of the label 10 is covered with a scratch-resistant film, which can prevent the serial number from becoming illegible due to surface wear.

[0027] It is worth noting that a tool box 11 is installed at the top center of the subway sleeper body 1 by multiple screws. The tool box 11 can be left empty or used to store maintenance tools for easy access by maintenance personnel. The top of the tool box 11 is hinged with a top cover 12, and the maintenance tools can be accessed by opening the top cover 12.

[0028] Working principle: After the subway sleeper body 1 is installed in the designated position, the reinforcing bolts 7 on both sides are tightened for reinforcement. Then, the protective plate 9 is covered and the buckle is locked. When the train passes, it will exert a force on the subway sleeper body 1. The force will be partially buffered by multiple support plates 4 and the reinforcing rods 5 on its side walls. The setting of the reinforcing cylinder 6 can prevent the remaining force from acting directly on the reinforcing bolts 7. At this time, the force on the reinforcing cylinder 6 will be borne by the reinforcing plate 3 and the corresponding side of the subway sleeper body 1. In this way, the reinforcing bolts 7 are not easy to deform or shift due to the force. The connection between the reinforcing bolts 7 and the ground is more stable, which can effectively prevent the connection with the ground from loosening.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength subway sleeper, comprising a subway sleeper body (1) and two mounting portions (2) integrally formed on the top of the subway sleeper, characterized in that: The subway sleeper body (1) has mounting grooves on both sides, and reinforcing plates (3) are installed on the top and bottom of the mounting grooves. Multiple support plates (4) are connected side by side between the two reinforcing plates (3). Two reinforcing rods (5) are symmetrically connected to the side wall of the support plate (4), and the bottom of the reinforcing rod (5) is connected to the top of the lower reinforcing plate (3). A connecting reinforcing hole is opened between the lower reinforcing plate (3) and the bottom of the subway sleeper body (1), and a reinforcing cylinder (6) is inserted between the corresponding reinforcing holes. A reinforcing screw (7) is screwed into the inner side of the reinforcing cylinder (6).

2. The high-strength subway sleeper according to claim 1, characterized in that: The side wall of the reinforcing screw (7) is fitted with a washer (8), and the washer (8) is supported between the head of the reinforcing screw (7) and the corresponding side of the reinforcing cylinder (6).

3. A high-strength subway sleeper according to claim 1, characterized in that: The bottom of the reinforcing rod (5) and the lower reinforcing plate (3), as well as the top of the reinforcing rod (5) and the support plate (4), are all welded and fixed. The subway long sleeper body (1) and the installation part (2) are cast in one piece.

4. A high-strength subway sleeper according to claim 1, characterized in that: The subway sleeper body (1) has protective plates (9) hinged on both sides, and a latch is installed between the protective plates (9) and the corresponding sides of the subway sleeper body (1).

5. A high-strength subway sleeper according to claim 4, characterized in that: The protective plate (9) has a sign (10) attached to the side away from the subway long pillow body (1), and the surface of the sign (10) is covered with a scratch-resistant film.

6. A high-strength subway sleeper according to claim 1, characterized in that: A toolbox (11) is installed at the top center of the subway sleeper body (1), and a top cover (12) is hinged to the top of the toolbox (11).

Images