Annular connecting bolt for subway track

Abstract

The utility model discloses a metro track circumferential connecting bolt, which relates to the technical field of circumferential connecting bolts, and comprises a circumferential main connecting shaft, which is of an arc-shaped structure, and two ends of the circumferential main connecting shaft are detachably provided with rotary mounting components; and the number of the fixing bolts is two, and the two fixing bolts are adjustably installed at the two ends of the annular main connecting shaft through the rotating installation assemblies respectively. When steel rail track connecting pieces with different angle connecting faces need to be installed, the detachable angle adjusting shaft is convenient to disassemble and assemble, and the angle adjusting shaft is convenient to disassemble and assemble; the connecting angle of the connecting block and the fixing bolt after installation can be flexibly adjusted, meanwhile, a detachable angle adjusting shaft is installed, the detachable angle adjusting shaft is aligned and then inserted into the connecting block, angle fixing is conducted on the connecting block and the fixing bolt connected to one side of the connecting block, and then an adjusting locking nut is installed on a locking part. And locking and fixing are carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of annular connecting bolts, in particular to annular connecting bolts for subway tracks. Background Art

[0002] Metro track ring bolts are bolts used to connect metro track ring connectors. Metro tracks are usually composed of rails and connectors. Connectors are used to connect different sections of rails to ensure the integrity and stability of the track. The metro track ring connector is a special connector used to connect the rails at both ends to form a closed ring to increase the strength and stability of the track.

[0003] Metro track ring bolts are usually made of high-strength steel, with sufficient strength and corrosion resistance to cope with the operation of subway trains and the impact of the environment. These bolts require strict control during installation to ensure that the track connection is firmly tightened to avoid safety hazards such as loosening or breaking of the track during use.

[0004] The selection and installation of subway track ring bolts need to take into account factors such as track design requirements, environmental conditions, and service life to ensure the safety and reliability of the track system.

[0005] At present, the annular connection main shaft of most annular connection bolts and the connecting bolts at both ends are fixedly connected. When connecting the annular connectors of subway tracks, it is necessary to select or replace annular connection bolts of different models. When using them, it is not convenient to adjust the connection angle of the bolts according to the connection requirements.

[0006] As described above, we have designed a subway track annular connecting bolt to solve the above problems. Summary of the invention

[0007] The utility model aims to solve the shortcomings in the prior art and proposes a subway track annular connecting bolt.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A subway track annular connecting bolt, comprising:

[0010] The annular main connecting shaft is an arc-shaped structure, and a rotating installation component can be detachably installed at both ends;

[0011] Two fixing bolts are provided, and the two fixing bolts are respectively adjustably mounted on the two ends of the annular main connecting shaft by rotating the mounting assembly.

[0012] Preferably, the rotating mounting assembly comprises a mounting port, two mounting blocks, a detachable angle adjustment shaft, and an adjustment locking nut;

[0013] The two mounting blocks are fixedly connected to the tail end of the annular main connecting shaft, the mounting opening is located between the two mounting blocks, and both mounting blocks are provided with mounting holes. The detachable angle adjustment shaft movably passes through the two mounting holes and is locked and fixed by adjusting the locking nut.

[0014] Preferably, the cross-sections of the detachable angle adjustment shaft and the mounting hole are matching hexagonal structures.

[0015] Preferably, the detachable angle adjustment shaft comprises an adjusting portion and a locking portion, and the adjusting portion passes through two mounting holes and is fixedly connected to the locking portion.

[0016] Preferably, one side of each of the two fixing bolts is connected to a fixing block, the other side of the fixing block is connected to a connecting block, and a positioning hole with a hexagonal cross-section is provided inside the connecting block.

[0017] Preferably, the connecting block is adjustably mounted via a positioning hole and a detachable angle adjustment shaft of the rotating mounting assembly.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows: a rotating installation assembly is detachably installed at both ends of the annular main connecting shaft, and two fixing bolts are provided. The two fixing bolts are respectively adjustably installed at the two ends of the annular main connecting shaft through the rotating installation assembly. This design makes it convenient to disassemble and assemble the detachable angle adjustment shaft when installing rail track connectors with different angle connection surfaces, and can flexibly adjust the connection angles of the installed connecting block and the fixing bolts. At the same time, the detachable angle adjustment shaft is installed, and the detachable angle adjustment shaft is aligned and inserted into the interior of the connecting block, and the angle of the connecting block and the fixing bolt connected to one side of the connecting block is fixed, and then the adjustment locking nut is installed on the locking part to lock and fix it. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a subway track annular connecting bolt proposed by the utility model;

[0020] Figure 2 A schematic diagram of the structure of a rotating installation assembly for a subway track annular connecting bolt proposed by the utility model;

[0021] Figure 3 The utility model is a schematic structural diagram of a detachable angle adjustment shaft of a subway track annular connecting bolt.

[0022] In the figure: 1 annular main connecting shaft, 2 rotating mounting assembly, 201 mounting opening, 202 mounting block, 203 detachable angle adjustment shaft, 2031 adjusting part, 2032 locking part, 204 adjusting locking nut, 3 fixing bolts, 4 mounting holes, 5 fixing blocks, 6 connecting blocks, 7 positioning holes. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments.

[0024] The subway track annular connector is a special connector used to connect rails at both ends. The utility model is a subway track annular connector bolt that flexibly adjusts the bolt connection angle according to the direction of the connecting surface of the rail when the subway track annular connector is connected to the rail.

[0025] Embodiment 1

[0026] Reference Figure 1-2 , a subway track annular connecting bolt, comprising an annular main connecting shaft 1 and a fixing bolt 3:

[0027] The annular main connecting shaft 1 is an arc-shaped structure, and the rotating installation components 2 are detachably installed at both ends; two fixing bolts 3 are provided, and the two fixing bolts 3 are respectively adjustable and installed at the two ends of the annular main connecting shaft 1 through the rotating installation components 2;

[0028] In this embodiment, one side of the two fixing bolts 3 is connected to a fixing block 5 , and the other side of the fixing block 5 is connected to a connecting block 6 . A positioning hole 7 with a hexagonal cross section is provided inside the connecting block 6 .

[0029] More specifically, the rotating installation assembly 2 includes an installation opening 201, two installation blocks 202, a detachable angle adjustment shaft 203, and an adjustment locking nut 204. The connecting block 6 is adjustably installed with the detachable angle adjustment shaft 203 of the rotating installation assembly 2 through the positioning hole 7;

[0030] There are two groups of mounting blocks 202, each group of mounting blocks 202 is provided with two, the two groups of mounting blocks are respectively fixedly connected to the tail end of the annular main connecting shaft 1, and there are two mounting openings 201 in total, the two mounting openings 201 are respectively located inside the two groups of mounting blocks 201, and each mounting opening 201 is located between the two mounting blocks 202;

[0031] More specifically, the two mounting blocks 202 of each group are provided with mounting holes 4 , and the detachable angle adjustment shaft 203 movably passes through the two mounting holes 4 and is locked and fixed by adjusting the locking nut 204 .

[0032] In this embodiment, refer to Figure 2-3 The cross-sections of the detachable angle adjustment shaft 203 and the mounting hole 4 are adapted hexagonal structures; the detachable angle adjustment shaft 203 includes an adjustment portion 2031 and a locking portion 2032, and the adjustment portion 2031 passes through the two mounting holes 4 and is fixedly connected to the locking portion 2032, so that when rails with different connecting surfaces are to be installed, the detachable angle adjustment shaft 203 can be easily disassembled and assembled, and the connecting angles of the connecting block 6 and the fixing bolt 3 after installation can be flexibly adjusted;

[0033] Among them, one side of the adjusting part 2031 is fixedly connected to the locking part 2032, and the other side of the adjusting part 2031 is connected to the limiting block. The adjusting part 2031 is a hexagonal structure, and the outside of the locking part 2032 is an external threaded structure that is compatible with the adjusting locking nut 204 to fix the angle of the connecting block 6 on one side of the bolt 3. It is also convenient to disassemble and replace the annular main connecting shaft 1 of different lengths according to the distance between the rail track connectors to be connected during installation, which is more flexible and convenient to use.

[0034] In this embodiment, the height of the cross section of the locking portion 2032 is smaller than the height of the cross section of the adjusting portion 2031 .

[0035] During use, when it is necessary to connect rail track connectors with connection surfaces in different directions, the removable angle adjustment shaft 203 can be pulled out according to the direction of the connection surface to be installed by unscrewing the adjusting locking nut 204, and then the connecting block 6 connected with the fixing bolt is rotated to allow the positioning hole 7 in the middle of the connecting block 7 to rotate along the axis. When it is rotated to an angle that matches the connection surface of the rail track connector to be connected, the removable angle adjustment shaft 203 is installed, and the removable angle adjustment shaft 203 is aligned and inserted into the interior of the connecting block 6, and the angle of the connecting block 6 and the fixing bolt 3 connected to one side of the connecting block is fixed, and then the adjusting locking nut 204 is installed on the locking portion 2032 to lock it.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A subway track annular connecting bolt, characterized in that: include: An annular main connecting shaft (1), the annular main connecting shaft (1) is an arc-shaped structure, and a rotating installation component (2) is detachably installed at both ends; Two fixing bolts (3) are provided, and the two fixing bolts (3) are respectively adjustably mounted on the two ends of the annular main connecting shaft (1) by rotating the mounting assembly (2).

2. A subway track annular connecting bolt according to claim 1, characterized in that: The rotating installation assembly (2) comprises a mounting opening (201), two mounting blocks (202), a detachable angle adjustment shaft (203), and an adjustment locking nut (204); The two mounting blocks (202) are fixedly connected to the rear end of the annular main connecting shaft (1), the mounting opening (201) is located between the two mounting blocks (202), and the two mounting blocks (202) are both provided with mounting holes (4), the detachable angle adjustment shaft (203) movably passes through the two mounting holes (4), and is locked and fixed by adjusting the locking nut (204).

3. A subway track annular connecting bolt according to claim 2, characterized in that: The cross sections of the detachable angle adjustment shaft (203) and the mounting hole (4) are matching hexagonal structures.

4. A subway track annular connecting bolt according to claim 3, characterized in that: The detachable angle adjustment shaft (203) comprises an adjustment portion (2031) and a locking portion (2032); the adjustment portion (2031) passes through two mounting holes (4) and is fixedly connected to the locking portion (2032).

5. The subway track annular connecting bolt according to claim 1, characterized in that: One side of each of the two fixing bolts (3) is connected to a fixing block (5), and the other side of the fixing block (5) is connected to a connecting block (6), and a positioning hole (7) with a hexagonal cross section is provided inside the connecting block (6).

6. The subway track annular connecting bolt according to claim 5, characterized in that: The connection block (6) is adjustably mounted via the positioning hole (7) and the detachable angle adjustment shaft (203) of the rotating mounting assembly (2).

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