Gas circuit board structure for railway vehicle

Abstract

The utility model relates to the technical field of railway vehicles, and discloses a gas circuit board structure for a railway vehicle, which comprises a gas circuit board main body, a protective shell is arranged outside the gas circuit board main body, a fixing plate is arranged on the rear surface and the lower surface of the protective shell, a fixing frame is arranged on the upper surface of the protective shell, and a gas circuit board is arranged on the fixing frame. Fixing bolts are movably connected to the surfaces of the upper side and the lower side of the interior of the fixing frame in a penetrating mode, ratchet wheels are installed outside the fixing bolts, and positioning mechanisms are arranged on the surfaces of the upper side and the lower side of the interior of the fixing frame and located on one sides of the fixing bolts. The gas circuit board main body is protected through the protective shell, so that the gas circuit board main body is prevented from being exposed and damaged; the protective pad buffers the protective shell; a ratchet wheel is clamped by a pawl in the positioning mechanism, so that the dead bolt cannot automatically generate anticlockwise rotation when the dead bolt does not need to rotate, and the dead bolt is prevented from loosening; the fixing bolt can be rotated anticlockwise by pulling the pawl away from the ratchet wheel, so that the protective shell is disassembled and maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicles, in particular to an air path plate structure for rail vehicles. Background Art

[0002] In the existing rail vehicle system, the braking and buffering processes are inseparable from the use of air components. In order to facilitate the installation and connection of these air components, air circuit boards are usually used for integration, that is, multiple air components are directly installed on the air circuit board to form a complete air flow transmission network; the existing air circuit board is easily hit by stones during the operation of the rail vehicle, resulting in damage to the internal air circuit.

[0003] A Chinese patent discloses an air path fixing device for rail vehicles (authorization announcement number CN213768520U). This patent technology provides a protective shell and a door lock on the outside of the air path plate and the air path element to protect the internal air path, prevent the vehicle from being damaged during operation, and avoid operation by non-operating personnel. At the same time, a second spring, a first shock-absorbing plate and an air bag are provided on one side of the protective shell to protect the outer shell close to the air path plate, and the impact force is well buffered to avoid the situation where the internal air path is damaged by the impact. A rubber cushion is provided at the bottom end of one side of the protective shell, and shock-absorbing springs and rubber rollers are provided at the four corners of the bottom of the protective shell, so that the bottom of the protective shell can be prevented from being impacted by stones during the operation of the rail vehicle. The stones can be quickly passed through by the rotation of the rubber roller to prevent direct collision with the stones, thereby avoiding damage to the air path inside the protective shell.

[0004] However, it has certain disadvantages: its protective shell is installed on the chassis beam of the rail vehicle through a U-shaped frame, and the protective shell and the U-shaped frame, as well as the U-shaped frame and the chassis beam are fixed by fastening bolts. The rail vehicle will vibrate during driving, and the vibration will be transmitted to the fastening bolts. Over time, the fastening bolts will rotate, causing looseness, making the protective shell at risk of falling off. Utility Model Content

[0005] The purpose of the utility model is to provide a rail vehicle air path plate structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pneumatic circuit board structure for rail vehicles comprises a pneumatic circuit board body, a protective shell is installed on the outside of the pneumatic circuit board body, a fixing plate is installed on the rear surface and the lower surface of the protective shell, a protective pad is installed on the outer surface of the fixing plate, a fixing frame is installed on the upper surface of the protective shell, fixing bolts are movably penetrated and connected on the upper and lower side surfaces of the fixing frame, a ratchet is installed on the outside of the fixing bolt, and a positioning mechanism is provided on the upper and lower side surfaces of the fixing frame on one side of the fixing bolt.

[0008] As a further solution of the utility model: the positioning mechanism includes a positioning plate, a positioning spring is installed on the surface of the positioning plate close to the fixing bolt, a pawl is attached to one end of the positioning spring, a positioning rod is rotatably connected to the right end of the pawl, a pull rod is threadedly connected to the inside of the positioning plate, and a pull rope is installed at one end of the pull rod.

[0009] As a further solution of the utility model: the fixing plate and the protective pad are internally movably connected with a docking tube, a docking plate is installed inside the docking tube, and pressure plates are installed inside the docking tube on the upper and lower sides of the docking plate, a docking spring is installed on the surface of the pressure plate close to the docking plate, a first pressure rod is installed on one end of the surface of the pressure plate away from the docking plate, and a second pressure rod is installed on the other end of the surface of the pressure plate away from the docking plate.

[0010] As a further solution of the utility model: the protective pad is a component made of elastic material, and the lower end of the lower fixing bolt is threadedly connected to the inside of the protective shell.

[0011] As a further solution of the utility model: one end of the positioning plate and the positioning rod are both installed on an inner side surface of the positioning mechanism, and one end of the pull rope is connected to the ratchet.

[0012] As a further solution of the utility model: one end of the docking spring is connected to the docking plate, the first pressure rod and the second pressure rod both movably penetrate the outer surface of the docking tube, and the second pressure rod is movably embedded in the interior of the protective shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model protects the main body of the gas circuit board through the protective shell to prevent the main body of the gas circuit board from being exposed to the outside and damaged; the protective pad cushions the protective shell to further protect the main body of the gas circuit board.

[0015] 2. The utility model uses the pawl in the positioning mechanism to clamp the ratchet so that the ratchet cannot rotate counterclockwise, so that the fixing bolt cannot rotate counterclockwise by itself when it is not needed, thereby avoiding the loosening of the fixing bolt and ensuring the stability of the installation; the fixing bolt can be rotated counterclockwise by pulling the pawl away from the ratchet, so that the protective shell can be disassembled and maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a gas path plate structure for a rail vehicle;

[0017] Figure 2 It is a partial cross-sectional view of a fixed plate in a gas path plate structure for a rail vehicle;

[0018] Figure 3 for Figure 1 A magnified view of middle;

[0019] Figure 4 It is a structural schematic diagram of a positioning mechanism in a gas path plate structure for a rail vehicle;

[0020] Figure 5 The present invention is a cross-sectional view of a butt joint pipe in a gas path plate structure for a rail vehicle.

[0021] In the figure: 1. air circuit board body; 2. protective shell; 3. fixing plate; 4. protective pad; 5. fixing frame; 6. fixing bolt; 7. ratchet; 8. positioning mechanism; 9. positioning plate; 10. positioning spring; 11. pawl; 12. positioning rod; 13. pull rod; 14. pull rope; 15. docking tube; 16. docking plate; 17. pressure plate; 18. docking spring; 19. first pressure rod; 20. second pressure rod; 21. rail vehicle underframe crossbeam. DETAILED DESCRIPTION

[0022] See also Figures 1 to 3 In the embodiment of the utility model, a gas circuit board structure for rail vehicles includes a gas circuit board body 1, a protective shell 2 is installed on the outside of the gas circuit board body 1, a fixing plate 3 is installed on the rear surface and the lower surface of the protective shell 2, a protective pad 4 is installed on the outer surface of the fixing plate 3, and the protective pad 4 is a component of elastic material. A fixing frame 5 is installed on the upper surface of the protective shell 2, and the upper and lower surfaces of the inner side of the fixing frame 5 are movably penetrated and connected with fixing bolts 6, and the lower end of the lower fixing bolt 6 is threadedly connected to the inside of the protective shell 2;

[0023] The gas circuit board body 1 is detachably mounted inside the protective shell 2 by means of bolts or the like;

[0024] The protective shell 2 protects the gas circuit board body 1; a shell cover that can be opened and closed is installed at the front end of the protective shell 2;

[0025] The gas circuit board body 1 is installed on the lower surface of the rail vehicle underframe crossbeam 21 of the rail vehicle through the protective shell 2;

[0026] The upper fixing bolt 6 is threadedly connected to the inside of the rail vehicle underframe crossbeam 21;

[0027] The material of the protective pad 4 is preferably rubber, which is used to prevent the protective shell 2 from being damaged by catapulted stones.

[0028] exist Figure 1 , Figure 3 and Figure 4 Middle: A ratchet 7 is installed on the outside of the fixing bolt 6, and a positioning mechanism 8 is provided on both upper and lower surfaces of the inner side of the fixing frame 5 located on one side of the fixing bolt 6. The positioning mechanism 8 includes a positioning plate 9, and a positioning spring 10 is installed on the surface of the positioning plate 9 close to the fixing bolt 6. A ratchet 11 is attached to one end of the positioning spring 10, and a positioning rod 12 is rotatably connected to the right end of the ratchet 11. One end of the positioning plate 9 and the positioning rod 12 are both installed on one side surface of the inner side of the positioning mechanism 8;

[0029] The ratchet 7 is welded to the outside of the fixing bolt 6;

[0030] The fixing bolt 6 can rotate normally by rotating clockwise, and the pawl 11 will not get stuck on the ratchet wheel 7; the fixing bolt 6 cannot be rotated counterclockwise, which avoids the fixing bolt 6 from rotating unnecessarily due to vibration, thereby preventing it from loosening;

[0031] Pulling the pawl 11 away from the ratchet wheel 7 can rotate the fixing bolt 6 counterclockwise.

[0032] exist Figure 4 Middle: A pull rod 13 is threadedly connected inside the positioning plate 9, a pull rope 14 is installed at one end of the pull rod 13, and one end of the pull rope 14 is connected to the ratchet 11;

[0033] Loosen the pull rod 13 and rotate the pull rope 14 to facilitate pulling the ratchet 11.

[0034] exist Figure 1 , Figure 2 and Figure 5 Middle: The interior of the fixing plate 3 and the protective pad 4 are movably connected and penetrated with a butt joint tube 15, a butt joint plate 16 is installed inside the butt joint tube 15, and pressure plates 17 are installed on the upper and lower sides of the butt joint plate 16 inside the butt joint tube 15, and a butt joint spring 18 is installed on the surface of the pressure plate 17 close to the butt joint plate 16, and one end of the butt joint spring 18 is connected to the butt joint plate 16, and a first pressure rod 19 is installed on one end of the surface of the pressure plate 17 away from the butt joint plate 16, and a second pressure rod 20 is installed on the other end of the surface of the pressure plate 17 away from the butt joint plate 16, and the first pressure rod 19 and the second pressure rod 20 are both movably penetrated through the outer surface of the butt joint tube 15, and the second pressure rod 20 is movably embedded in the protective shell 2;

[0035] The butt joint 15 mounts the protective pad 4 and the protective shell 2 together;

[0036] The vertical length of the first pressure rod 19 is greater than the vertical length of the second pressure rod 20. Pressing the first pressure rod 19 toward the inside of the docking tube 15 can drive the second pressure rod 20 to retract into the inside of the docking tube 15, making it easier to move the docking tube 15 out of the protective shell 2, thereby disassembling the protective pad 4.

[0037] The working principle of the utility model is: first, the air circuit board body 1 is installed inside the protective shell 2, the fixing bolt 6 passes through the fixing frame 5 and is screwed into the inside of the protective shell 2, so that the fixing frame 5 is installed on the protective shell 2, and then the fixing frame 5 is installed on the rail vehicle chassis crossbeam 21 in the same way, thereby completing the installation of the air circuit board body 1; when the protective shell 2 needs to be removed from the fixing frame 5, the pull rod 13 is loosened and the pull rope 14 is pulled, thereby pulling the pawl 11 away from the ratchet 7, and the fixing bolt 6 can be removed by rotating it counterclockwise, thereby removing the protective shell 2.

[0038] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gas circuit board structure for rail vehicles, comprising a gas circuit board body (1), a protective shell (2) is installed on the outside of the gas circuit board body (1), a fixing plate (3) is installed on the rear surface and the lower surface of the protective shell (2), a protective pad (4) is installed on the outer surface of the fixing plate (3), a fixing frame (5) is installed on the upper surface of the protective shell (2), and fixing bolts (6) are movably penetrated and connected to the upper and lower surfaces of the inner side of the fixing frame (5), characterized in that: A ratchet (7) is installed on the outside of the fixing bolt (6), and positioning mechanisms (8) are provided on the upper and lower surfaces of the inside of the fixing frame (5) on one side of the fixing bolt (6).

2. The rail vehicle air path plate structure according to claim 1, characterized in that: The positioning mechanism (8) includes a positioning plate (9), a positioning spring (10) is installed on the surface of one side of the positioning plate (9) close to the fixing bolt (6), one end of the positioning spring (10) is fitted with a pawl (11), the right end of the pawl (11) is internally rotatably connected to a positioning rod (12), a pull rod (13) is threadedly connected inside the positioning plate (9), and a pull rope (14) is installed at one end of the pull rod (13).

3. The rail vehicle air path plate structure according to claim 1, characterized in that: The fixing plate (3) and the protective pad (4) are connected together by a butt joint tube (15) which is movably penetrated therethrough. A butt joint plate (16) is installed inside the butt joint tube (15). Pressure plates (17) are installed inside the butt joint tube (15) on both upper and lower sides of the butt joint plate (16). A butt joint spring (18) is installed on the surface of the pressure plate (17) close to the butt joint plate (16). A first pressure rod (19) is installed on one end of the surface of the pressure plate (17) away from the butt joint plate (16), and a second pressure rod (20) is installed on the other end of the surface of the pressure plate (17) away from the butt joint plate (16).

4. The rail vehicle air path plate structure according to claim 1, characterized in that: The protective pad (4) is a component made of elastic material, and the lower end of the fixing bolt (6) on the lower side is threadedly connected to the inside of the protective shell (2).

5. The rail vehicle air path plate structure according to claim 2, characterized in that: One end of the positioning plate (9) and the positioning rod (12) are both mounted on an inner side surface of the positioning mechanism (8), and one end of the pull rope (14) is connected to the ratchet (11).

6. The rail vehicle air path plate structure according to claim 3, characterized in that: One end of the docking spring (18) is connected to the docking plate (16); the first pressure rod (19) and the second pressure rod (20) both movably penetrate the outer surface of the docking tube (15); and the second pressure rod (20) is movably embedded in the interior of the protective shell (2).

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