Brake control device fastener for railway vehicle

Abstract

The utility model relates to the technical field of fasteners, and discloses a brake control device fastener for a railway vehicle, which comprises a fastening plate, a fastening bolt is in threaded connection with the inside of the fastening plate, a ratchet wheel is arranged outside the fastening bolt and above the fastening plate, a positioning mechanism is arranged on the upper surface of the fastening plate and on the front side of the fastening bolt, and the ratchet wheel is in threaded connection with the fastening plate. The positioning mechanism comprises a first spring, a pawl is installed at the rear end of the first spring, a positioning block is installed at the front end of the first spring, and a limiting mechanism is arranged on the surface of the left side of the positioning block; according to the utility model, the positioning mechanism is arranged, and the pawl in the positioning mechanism is attached to the ratchet wheel, so that the fastening bolt is prevented from loosening; the whole positioning mechanism is simple in structure and convenient to maintain, destructive treatment does not need to be conducted on the fastening plate, the strength of the fastening plate is prevented from being reduced, a rack in the limiting mechanism abuts against a pawl so that the pawl can be tightly attached to a ratchet wheel, a fastening bolt is prevented from rotating, and the mounting stability of the fastening plate is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a fastener for a braking control device of a rail vehicle. Background Technique

[0002] With the rapid development of high-speed railways, heavy rails, subways, and light rails in China, a large number of fasteners have been provided for different regions and countries at home and abroad. Rail vehicle fasteners are important components used to connect rail tracks. Although there are a large number of types and quantities of current rail vehicle fasteners;

[0003] However, there are still certain problems with the existing rail vehicle fasteners, which bring certain inconveniences to the use of rail vehicle fasteners. However, during the use of most rail vehicle fasteners, it is mostly not easy to prevent them from loosening, which is likely to cause potential safety hazards and is inconvenient to use. This greatly limits the scope of use of rail vehicle fasteners.

[0004] The Chinese patent discloses a fastener for a braking control device of a rail vehicle (authorization publication number CN221214005U). This patented technology installs and fixes the mounting plate through mounting bolts, then pulls up the handle and rotates the limiting cylinder so that the clamping block and the clamping groove are on the same axis. At this time, release the handle. Through the action of the first spring on the moving plate, the moving plate drives the positioning block to insert into the corresponding positioning hole. The moving plate drives the clamping block to move through the driving wheel and the driving block, and the clamping block is engaged with the clamping groove to limit the mounting bolt, so as to achieve the effect of high practicability and solve the problem of low practicability of the existing device;

[0005] However, it has certain drawbacks: a large number of structures are gathered inside the limiting cylinder used to fix the mounting bolt. When any one of the structures is damaged and needs to be repaired and replaced, the limiting cylinder needs to be destructively processed, so it is not convenient for maintenance; and it is necessary to open grooves, positioning holes, limiting grooves, etc. on the surface of the mounting plate. These destructive processes will cause the local thinning of the mounting plate, thus affecting the overall strength. Content of the Utility Model

[0006] The purpose of the utility model is to provide a fastener for a braking control device of a rail vehicle to solve the problems put forward in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A fastener for a braking control device of an orbital vehicle, comprising a fastening plate, a fastening bolt is threadedly connected inside the fastening plate, a ratchet is installed above the fastening plate on the outside of the fastening bolt, a positioning mechanism is arranged on the upper surface of the fastening plate on the front side of the fastening bolt, the positioning mechanism includes a first spring, a pawl is installed at the rear end of the first spring, a positioning rod is rotatably connected inside the right end of the pawl, a positioning block is installed at the front end of the first spring, and a limiting mechanism is arranged on the left side surface of the positioning block.

[0009] As a further scheme of the present invention: A plurality of reinforcing blocks are installed at the lower ends of the front and rear side surfaces of the positioning block.

[0010] As a further scheme of the present invention: The limiting mechanism includes a rack, the lower surface of the rack is slidably connected to a slide rail, and a plurality of first teeth are evenly installed on the upper surface of the rack from front to back. The limiting mechanism further includes a limiting member.

[0011] As a further scheme of the present invention: The limiting member includes a mounting block, a pull rod is movably penetrated through the inside of the mounting block, a pull block is installed at the upper end of the pull rod, and a second tooth is installed at the lower end of the pull rod. A second spring is installed on the upper surface of the second tooth outside the pull rod.

[0012] As a further scheme of the present invention: The pawl fits against the ratchet, and the lower ends of the positioning rod and the positioning block are both installed on the upper surface of the fastening plate.

[0013] As a further scheme of the present invention: The lower ends of the reinforcing blocks are installed on the upper surface of the fastening plate.

[0014] As a further scheme of the present invention: The rack is facing the pawl, and the slide rail is installed on the upper surface of the fastening plate.

[0015] As a further scheme of the present invention: The right end of the mounting block is installed on the left side surface of the positioning block, the second tooth is located between two adjacent first teeth, and the upper end of the second spring is connected to the mounting block.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By setting a positioning mechanism in the present invention, the pawl in the positioning mechanism fits against the ratchet, so that the fastening bolt cannot rotate counterclockwise, thereby avoiding the loosening of the fastening bolt and ensuring the stability of the installation of the fastening plate; The entire positioning mechanism has a simple structure and is exposed outside, so it is convenient to maintain, and it is not necessary to perform destructive treatment on the fastening plate, avoiding the reduction of the strength of the fastening plate.

[0018] 2. The utility model improves the stability of the fastening plate installation by further preventing the fastening bolt from rotating through the provision of a limiting mechanism, in which the rack in the limiting mechanism presses against the ratchet pawl, causing it to fit tightly against the ratchet wheel. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural view of a fastener for a braking control device of a rail vehicle;

[0020] Figure 2 It is a schematic structural view of a positioning mechanism in a fastener for a braking control device of a rail vehicle;

[0021] Figure 3 It is a schematic structural view of a limiting mechanism in a fastener for a braking control device of a rail vehicle;

[0022] Figure 4 It is a schematic structural view of a limiting member in a fastener for a braking control device of a rail vehicle.

[0023] In the figure: 1, fastening plate; 2, fastening bolt; 3, ratchet wheel; 4, positioning mechanism; 5, first spring; 6, ratchet pawl; 7, positioning rod; 8, positioning block; 9, strengthening block; 10, limiting mechanism; 11, rack; 12, slide rail; 13, first tooth; 14, limiting member; 15, mounting block; 16, pull rod; 17, pull block; 18, second tooth; 19, second spring. Detailed Embodiment

[0024] Please refer to Figure 1 and Figure 2 In an embodiment of the present utility model, a fastener for a braking control device of a rail vehicle includes a fastening plate 1, a fastening bolt 2 is threadedly connected inside the fastening plate 1, a ratchet wheel 3 is installed above the fastening plate 1 outside the fastening bolt 2, a positioning mechanism 4 is arranged on the upper surface of the fastening plate 1 in front of the fastening bolt 2, the positioning mechanism 4 includes a first spring 5, a ratchet pawl 6 is installed at the rear end of the first spring 5, the ratchet pawl 6 is in contact with the ratchet wheel 3, a positioning rod 7 is rotatably connected inside the right end of the ratchet pawl 6, a positioning block 8 is installed at the front end of the first spring 5, and the lower ends of the positioning rod 7 and the positioning block 8 are both installed on the upper surface of the fastening plate 1;

[0025] By rotating the fastening bolt 2 clockwise, the fastening plate 1 can be fixed on the rail track;

[0026] The ratchet wheel 3 is welded outside the fastening bolt 2;

[0027] The positioning rod 7 and the positioning block 8 are both welded to the fastening plate 1;

[0028] The contact between the ratchet pawl 6 and the ratchet wheel 3 enables the fastening bolt 2 to rotate clockwise but not counterclockwise, thus preventing the loosening of the fastening bolt 2 and ensuring the firm installation of the fastening plate 1.

[0029] In Figures 1 to 4 : At the lower ends of the front and rear surfaces of the positioning block 8, a plurality of reinforcing blocks 9 are installed, and the lower ends of the reinforcing blocks 9 are installed on the upper surface of the fastening plate 1;

[0030] The reinforcing block 9 is of a T-shaped structure and is welded to the fastening plate 1, improving the stability of the installation of the positioning block 8.

[0031] In Figure [X]: A limiting mechanism 10 is provided on the left surface of the positioning block 8. The limiting mechanism 10 includes a rack 11. The rack 11 faces the pawl 6. A slide rail 12 is slidably connected to the lower surface of the rack 11, and the slide rail 12 is installed on the upper surface of the fastening plate 1. A plurality of first teeth 13 are evenly installed on the upper surface of the rack 11 from front to back. The limiting mechanism 10 further includes a limiting member 14. The limiting member 14 includes a mounting block 15. The right end of the mounting block 15 is installed on the left surface of the positioning block 8. A pull rod 16 is movably inserted through the interior of the mounting block 15. A pull block 17 is installed at the upper end of the pull rod 16, and a second tooth 18 is installed at the lower end of the pull rod 16. The second tooth 18 is located between two adjacent first teeth 13. A second spring 19 is installed on the upper surface of the second tooth 18 outside the pull rod 16, and the upper end of the second spring 19 is connected to the mounting block 15;

[0032] The rack 11 fits against the pawl 6, making it fit tightly against the ratchet wheel 3, preventing the fastening bolt 2 from rotating counterclockwise and further improving the stability of the installation of the fastening plate 1;

[0033] Pulling the pull rod 16 upward drives the second tooth 18 away from between two adjacent first teeth 13, and the rack 11 can be pulled forward to move it away from the pawl 6, thus facilitating the rotation of the fastening bolt 2.

[0034] The working principle of the present utility model is as follows: First, pull the pawl 6 to compress the first spring 5, screw the fastening bolt 2 clockwise into the fastening plate 1 and into the installation position. When the ratchet wheel 3 faces the pawl 6, release the pawl 6 to make it fit against the ratchet wheel 3, and continue to rotate the fastening bolt 2 clockwise until the ratchet wheel 3 fits tightly against the fastening plate 1, thereby fixing the fastening plate 1 at the installation position. Then, pull the pull block 17 upward to drive the pull rod 16 to rise, thereby driving the second tooth 18 away from between two adjacent first teeth 13, push the rack 11 backward to make it abut against the pawl 6, release the pull block 17, and under the action of the second spring 19, the second tooth 18 moves between two adjacent first teeth 13, thereby fixing the rack 11. In summary, the installation of the entire fastener is completed.

[0035] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent replacements or changes, shall be covered by the protection scope of the present utility model.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

Claims

1. A fastener for a braking control device of an orbital vehicle, comprising a fastening plate (1), and a fastening bolt (2) is threadedly connected inside the fastening plate (1), characterized in that, Above the fastening plate (1), a ratchet wheel (3) is installed on the outside of the fastening bolt (2). On the upper surface of the fastening plate (1) and in front of the fastening bolt (2), a positioning mechanism (4) is provided. The positioning mechanism (4) includes a first spring (5). At the rear end of the first spring (5), a ratchet pawl (6) is installed. Inside the right end of the ratchet pawl (6), a positioning rod (7) is rotatably connected. At the front end of the first spring (5), a positioning block (8) is installed. On the left side surface of the positioning block (8), a limiting mechanism (10) is provided.

2. The fastener of a braking control device for a rail vehicle according to claim 1, characterized in that, At the lower positions on the front and rear side surfaces of the positioning block (8), a plurality of reinforcing blocks (9) are installed.

3. A fastener for a braking control device of a rail vehicle according to claim 1, characterized in that, The limiting mechanism (10) includes a rack (11). The lower surface of the rack (11) is slidably connected to a slide rail (12). On the upper surface of the rack (11), a plurality of first teeth (13) are evenly installed from front to back. The limiting mechanism (10) further includes a limiting member (14).

4. A fastener for a braking control device of a rail vehicle according to claim 3, characterized in that, The limiting member (14) includes a mounting block (15). Inside the mounting block (15), a pull rod (16) is movably and penetratingly connected. At the upper end of the pull rod (16), a pull block (17) is installed. At the lower end of the pull rod (16), a second tooth (18) is installed. On the upper surface of the second tooth (18) and outside the pull rod (16), a second spring (19) is installed.

5. A fastener for a braking control device of a rail vehicle according to claim 1, characterized in that, The ratchet pawl (6) is in contact with the ratchet wheel (3). The lower ends of the positioning rod (7) and the positioning block (8) are both installed on the upper surface of the fastening plate (1).

6. A fastener for a braking control device of a rail vehicle according to claim 2, characterized in that, The lower ends of the reinforcing blocks (9) are installed on the upper surface of the fastening plate (1).

7. A fastener for a braking control device of a rail vehicle according to claim 3, characterized in that, The rack (11) is facing the ratchet pawl (6). The slide rail (12) is installed on the upper surface of the fastening plate (1).

8. A fastener for a braking control device of a rail vehicle according to claim 4, characterized in that, The right end of the mounting block (15) is installed on the left side surface of the positioning block (8). The second tooth (18) is located between two adjacent first teeth (13). The upper end of the second spring (19) is connected to the mounting block (15).

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