Bolt anti-falling device for railway vehicle

Abstract

The utility model relates to the technical field of railway vehicles, in particular to a bolt anti-falling device for railway vehicles, which comprises a first rail connecting plate, and a second rail connecting plate is mounted at the top of the first rail connecting plate. Two handles are rotated to drive two threaded rods to rotate correspondingly, so that two clamping arc plates are driven to get close to each other to clamp and fix the exterior of a bolt, a rotating rod is rotated to enable one end of the rotating rod to be attached to a second supporting block, and then a movable plate is released; and limitation of a second reset spring is relieved, the movable plate is driven to reset, and the limiting rod is synchronously driven to be connected into the limiting hole, so that limiting of the rotating rod is achieved, and the problem that due to the fact that a traditional bolt for the railway vehicle is not provided with an anti-falling device, the bolt falls off after long-time bumping is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicles, in particular to a bolt anti-slip device for rail vehicles. Background Art

[0002] Railcars, also known as railway cars, refer to vehicles that run on railways and have their own power units. These vehicles are mainly used to transport goods or passengers, and can also be used for railway maintenance and inspection work. The design and operation of railcars enable them to move efficiently and quickly on rails, thereby meeting large-scale and long-distance transportation needs. In rail transit vehicles, bolt connections are a key component fixing method. However, since rail vehicles are often affected by dynamic loads such as variable loads, impacts, and vibrations during operation, traditional rail vehicle bolts are not equipped with anti-slip devices, and the bolt connections may become loose or fall off, which not only reduces the quality of the connection, but may even cause serious traffic accidents.

[0003] In summary, the present invention solves the existing problems by designing a bolt anti-loosening device for rail vehicles. Utility Model Content

[0004] The purpose of the present utility model is to provide a bolt anti-dropping device for rail vehicles to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A bolt anti-slip device for a rail vehicle, comprising a first rail connecting plate, a second rail connecting plate being mounted on the top of the first rail connecting plate, a bolt being mounted on the top of the second rail connecting plate and inside the first and second rail connecting plates, a limit frame being mounted on the top of the second rail connecting plate, threaded rods being symmetrically mounted on both wider sides of the outer surface of the limit frame, a handle being mounted on one end of the threaded rod, a clamping arc plate being mounted on the end of the threaded rod away from the handle, first fixing blocks being symmetrically mounted on both narrower sides of the outer surface of the limit frame, a first return spring being mounted on the bottom of the first fixing block, a first telescopic rod being mounted inside the first return spring, and a second fixing plate being mounted on the bottom of the first return spring and the first telescopic rod;

[0007] A first support block is installed on the outside of the limit frame and on one side close to the threaded rod, a rotating rod is installed on the outside of the first support block, a limiting hole is provided on one end of the outside of the rotating rod, a second support block is installed on the outside of the limit frame and on the other side close to the threaded rod, a second return spring is installed on the outside of the second support block, a second telescopic rod is installed on the inside of the second return spring, a movable plate is installed on the end of the second return spring and the second telescopic rod away from the second support block, and a limiting rod is installed on the outer side of the movable plate and on the end away from the second return spring.

[0008] As a preferred solution of the present invention, the end of the threaded rod away from the handle passes through the limit frame and is rotatably connected to the outside of the clamping arc plate, and the outer ring surface of the threaded rod is threadedly connected to the inside of the limit frame.

[0009] As a preferred solution of the present invention, after the handle drives the clamping arc plate to limit the bolt through the threaded rod, the rotation of the rotating rod does not interfere with the handle.

[0010] As a preferred solution of the present invention, the inner side wall of the clamping arc plate is provided with a polygonal groove matching the outer size of the bolt, and the inner side walls of the two clamping arc plates can fit tightly with the outer side of the bolt.

[0011] As a preferred solution of the present invention, one end of the rotating rod is rotatably connected to the outside of the first support block, and the rotating rod is perpendicular to the limit frame in the initial state. After the two clamping arc plates limit the bolt, the rotating rod is rotated so that the rotating rod is parallel to the limit frame and one end is in contact with the second support block.

[0012] As a preferred solution of the present invention, the size of the outer ring surface of the limiting rod matches the size of the inner side wall of the limiting hole, and the outer ring surface of the limiting rod is slidably connected to the inner side wall of the limiting hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the utility model, a rail vehicle bolt anti-slip device is designed. By rotating two handles, two threaded rods are driven to rotate respectively, thereby driving two clamping arc plates to approach each other to clamp and fix the outside of the bolt. After rotating the rotating rod so that one end of the rotating rod is in contact with the second support block, the movable plate is released. The restriction of the second return spring is released, driving the movable plate to reset and synchronously driving the limit rod to enter the inside of the limit hole to limit the rotating rod, thereby effectively solving the problem that traditional rail vehicle bolts are not provided with an anti-slip device, which causes the bolts to fall off after long-term bumps. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of some structures;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of partial structural closure;

[0018] Figure 4 For this utility model Figure 3 Schematic diagram of partially opened structure.

[0019] In the figure: 1. First track connecting plate; 2. Second track connecting plate; 3. Bolt; 4. Limiting frame; 5. Threaded rod; 501. Handle; 6. Clamping arc plate; 7. First fixed block; 8. First return spring; 9. First telescopic rod; 10. Second fixed plate; 11. First support block; 12. Rotating rod; 1201. Limiting hole; 13. Second support block; 14. Second return spring; 15. Second telescopic rod; 16. Movable plate; 17. Limiting rod. DETAILED DESCRIPTION

[0020] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0025] A bolt anti-slip device for a rail vehicle, comprising a first rail connecting plate 1, a second rail connecting plate 2 being mounted on the top of the first rail connecting plate 1, a bolt 3 being mounted on the top of the second rail connecting plate 2 and located inside the first rail connecting plate 1 and the second rail connecting plate 2, a limit frame 4 being mounted on the top of the second rail connecting plate 2, threaded rods 5 being symmetrically mounted on both wider sides of the outer surface of the limit frame 4, a handle 501 being mounted on one end of the threaded rod 5, a clamping arc plate 6 being mounted on the end of the threaded rod 5 away from the handle 501, first fixing blocks 7 being symmetrically mounted on both narrower sides of the outer surface of the limit frame 4, a first return spring 8 being mounted on the bottom of the first fixing block 7, a first telescopic rod 9 being mounted inside the first return spring 8, and a second fixing plate 10 being mounted on the bottom of the first return spring 8 and the first telescopic rod 9;

[0026] A first support block 11 is installed on the outside of the limit frame 4 and on one side close to the threaded rod 5, a rotating rod 12 is installed on the outside of the first support block 11, and a limiting hole 1201 is provided at one end of the outside of the rotating rod 12. A second support block 13 is installed on the outside of the limit frame 4 and on the other side close to the threaded rod 5, a second return spring 14 is installed on the outside of the second support block 13, a second telescopic rod 15 is installed on the inside of the second return spring 14, a movable plate 16 is installed on the end of the second return spring 14 and the second telescopic rod 15 away from the second support block 13, and a limiting rod 17 is installed on the outer side of the movable plate 16 and on the end away from the second return spring 14.

[0027] Specifically, refer to Figure 2 The end of the threaded rod 5 away from the handle 501 passes through the limit frame 4 and is rotatably connected to the outside of the clamping arc plate 6, and the outer ring surface of the threaded rod 5 is threadedly connected to the inside of the limit frame 4, thereby ensuring that the two threaded rods 5 are driven to rotate by rotating the two handles 501, thereby driving the two clamping arc plates 6 to approach each other, clamping and fixing the outside of the bolt 3.

[0028] Furthermore, after the handle 501 drives the clamping arc plate 6 to limit the bolt 3 through the threaded rod 5, the rotation of the rotating rod 12 does not interfere with the handle 501, thereby facilitating the limiting of the handle 501 by rotating the rotating rod 12.

[0029] Furthermore, the inner side wall of the clamping arc plate 6 is provided with a polygonal groove that matches the outer size of the bolt 3, and the inner side walls of the two clamping arc plates 6 can fit tightly with the outer side of the bolt 3, thereby facilitating the limiting of the bolt 3.

[0030] Furthermore, one end of the rotating rod 12 is rotatably connected to the outside of the first support block 11, and the rotating rod 12 is perpendicular to the limit frame 4 in the initial state. After the two clamping arc plates 6 limit the bolt 3, the rotating rod 12 is rotated so that the rotating rod 12 is parallel to the limit frame 4 and one end is in contact with the second support block 13, thereby facilitating the limiting of the handle 501 and preventing the threaded rod 5 from reversing on its own when the rail vehicle is bumpy, causing the two clamping arc plates 6 to separate from the bolt 3.

[0031] For details, please refer to Figure 3 and Figure 4 The outer ring surface size of the limit rod 17 matches the inner wall size of the limit hole 1201, and the outer ring surface of the limit rod 17 is slidably connected to the inner wall of the limit hole 1201, thereby ensuring that the movable plate 16 is pulled outward, and the movable plate 16 synchronously stretches the second return spring 14 and the second telescopic rod 15, and then the rotating rod 12 is rotated so that one end of the rotating rod 12 is in contact with the second support block 13, and finally the movable plate 16 is released, the restriction of the second return spring 14 is released, driving the movable plate 16 to reset and synchronously driving the limit rod 17 to access the inside of the limit hole 1201, thereby realizing the limitation of the rotating rod 12.

[0032] The working process of the utility model: using the bolt anti-slip device for rail vehicles designed by the present invention, in the process of limiting and preventing the bolts of rail vehicles from slipping off, first pull the two second fixing plates 10 downward, the second fixing plates 10 move downward and stretch the first return spring 8 and the first telescopic rod 9 at the same time, then put the device from one end of the first track connecting plate 1 and the second track connecting plate 2 to the outside of the first track connecting plate 1 and the second track connecting plate 2, so that the bolt 3 is located between the two clamping arc plates 6 inside the limit frame 4, and then release the two second fixing plates 10, the restriction of the first return spring 8 is released, driving the two second fixing plates 10 to rise and contact the bottom of the first track connecting plate 1, thereby fixing the device to the first track connecting plate 1 and the second track connecting plate The outside of the connecting plate 2 drives the two threaded rods 5 to rotate respectively by rotating the two handles 501, thereby driving the two clamping arc plates 6 to approach each other, clamping and fixing the outside of the bolt 3, and pulling the movable plate 16 outward. The movable plate 16 synchronously stretches the second return spring 14 and the second telescopic rod 15, and then rotates the rotating rod 12 so that one end of the rotating rod 12 is in contact with the second support block 13, and finally releases the movable plate 16. The restriction of the second return spring 14 is released, driving the movable plate 16 to reset and synchronously driving the limit rod 17 to connect to the inside of the limit hole 1201, thereby realizing the limitation of the rotating rod 12, which makes it easier to limit the handle 501, and prevents the rail vehicle from causing the threaded rod 5 to reverse itself when it is bumpy, causing the two clamping arc plates 6 to separate from the bolt 3.

[0033] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bolt anti-slip device for a rail vehicle, comprising a first rail connecting plate (1), characterized in that: A second track connecting plate (2) is installed on the top of the first track connecting plate (1), a bolt (3) is installed on the top of the second track connecting plate (2) and located inside the first track connecting plate (1) and the second track connecting plate (2), a limit frame (4) is installed on the top of the second track connecting plate (2), threaded rods (5) are symmetrically installed on the two wider sides of the outside of the limit frame (4), a handle (501) is installed on one end of the threaded rod (5), and a clamping arc plate (6) is installed on the end of the threaded rod (5) away from the handle (501), and a first fixed block (7) is symmetrically installed on the two narrower sides of the outside of the limit frame (4), a first return spring (8) is installed at the bottom of the first fixed block (7), a first telescopic rod (9) is installed inside the first return spring (8), and a second fixed plate (10) is installed at the bottom of the first return spring (8) and the first telescopic rod (9); A first support block (11) is installed on the outside of the limit frame (4) and on one side close to the threaded rod (5), a rotating rod (12) is installed on the outside of the first support block (11), and a limiting hole (1201) is provided at one end of the outside of the rotating rod (12), a second support block (13) is installed on the outside of the limit frame (4) and on the other side close to the threaded rod (5), a second return spring (14) is installed on the outside of the second support block (13), a second telescopic rod (15) is installed inside the second return spring (14), a movable plate (16) is installed on one end of the second return spring (14) and the second telescopic rod (15) away from the second support block (13), and a limiting rod (17) is installed on the outer side of the movable plate (16) and on one end away from the second return spring (14).

2. A rail vehicle bolt anti-slip device according to claim 1, characterized in that: The end of the threaded rod (5) away from the handle (501) passes through the limit frame (4) and is rotatably connected to the outside of the clamping arc plate (6), and the outer ring surface of the threaded rod (5) is threadedly connected to the inside of the limit frame (4).

3. The rail vehicle bolt anti-slip device according to claim 1, characterized in that: After the handle (501) drives the clamping arc plate (6) to limit the bolt (3) through the threaded rod (5), the rotation of the rotating rod (12) does not interfere with the handle (501).

4. The rail vehicle bolt anti-slip device according to claim 1, characterized in that: The inner side wall of the clamping arc plate (6) is provided with a polygonal groove that matches the outer dimensions of the bolt (3), and the inner side walls of the two clamping arc plates (6) can fit tightly with the outer portion of the bolt (3).

5. The bolt anti-slip device for rail vehicles according to claim 1, characterized in that: One end of the rotating rod (12) is rotatably connected to the outside of the first support block (11), and the rotating rod (12) is perpendicular to the limit frame (4) in an initial state. After the two clamping arc plates (6) limit the bolt (3), the rotating rod (12) is rotated so that the rotating rod (12) is parallel to the limit frame (4) and one end is in contact with the second support block (13).

6. The rail vehicle bolt anti-drop device according to claim 1, characterized in that: The outer ring surface size of the limiting rod (17) matches the inner side wall size of the limiting hole (1201), and the outer ring surface of the limiting rod (17) and the inner side wall of the limiting hole (1201) are slidably connected.

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