Nylon pipe connecting and fixing mechanism for rail locomotive

Abstract

The utility model relates to a nylon pipe connecting and fixing mechanism for a rail locomotive in the technical field of parts of rail locomotives, which comprises an air pipe assembly connected through a first nylon pipe and a second nylon pipe. A connecting and fixing mechanism is arranged between the first nylon pipe and the second nylon pipe; the connecting and fixing mechanism comprises a nut assembly in threaded connection with the first nylon pipe or the second nylon pipe, grooves formed in the two side edges of the nut assembly and reset piece mechanisms matched with the grooves, a nut is further arranged on the first nylon pipe or the second nylon pipe, and the nut is matched with the nut assembly for locking; when the nylon pipe locking device works, the nylon pipe on the rail locomotive can be effectively locked and connected, the loosening phenomenon caused by vibration in the running process is avoided, the connection is more stable, and the nylon pipe cannot move backwards due to vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicle parts, in particular to a connecting and fixing mechanism. Background Art

[0002] The nylon tube structure for rail locomotives is a high-performance engineering plastic component used in the railway transportation system. Nylon materials have good mechanical properties and can withstand the high strength requirements of railway tracks. Compared with metal parts, nylon parts are lighter and have good vibration resistance, which is particularly important for high-speed railway locomotives; however, the existing technology has the following shortcomings: In rail locomotives, the brake air pipe needs to be connected between the two carriages. After long-term use, the nut assembly at the connection will become loose, resulting in poor air pipe sealing, affecting the timeliness of the locomotive braking, and posing a major safety hazard. Utility Model Content

[0003] The purpose of the utility model is to provide a nylon tube connection and fixing mechanism for a rail locomotive in order to solve the problem that in a rail locomotive, two sections of brake air pipes are connected by a nut assembly, and vibration is generated during the operation of the vehicle body, and the nut assembly at the connection becomes loose, resulting in poor sealing of the air pipe, affecting the timeliness of the locomotive braking, and posing a major safety hazard.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model discloses a nylon tube connection and fixing mechanism for a rail locomotive, comprising an air pipe assembly, wherein the air pipe assembly is connected through a first nylon tube and a second nylon tube; a connection and fixing mechanism is arranged between the first nylon tube and the second nylon tube; the connection and fixing mechanism comprises a nut assembly threadedly connected to the first nylon tube or the second nylon tube, grooves arranged on both sides of the nut assembly and a reset member mechanism arranged in cooperation with the grooves; a nut is also arranged on the first nylon tube or the second nylon tube, and the nut is arranged in cooperation with the nut assembly for locking.

[0006] As a further solution of the utility model, in order to facilitate resetting and improve working stability, the resetting member mechanism includes an upper connecting component and a lower connecting component, and the upper connecting component and the lower connecting component are frictionally fitted.

[0007] As a further solution of the utility model, in order to enable the upper connecting assembly to work stably and safely and improve work efficiency and stability; the upper connecting assembly includes a connecting block, a first connecting shaft arranged at one end of the connecting block, a torsion spring and an L-shaped clamping block sleeved on the first connecting shaft, and a through hole opened on the side of the groove; the connecting block is movably connected in the groove.

[0008] As a further solution of the utility model, in order to enable the lower connecting assembly to play a better fixing role and serve as a basis for the movement of the upper connecting assembly; the lower connecting assembly includes a movable block and a first connecting plate; the movable block is movably connected in the through hole and fits with the side of the connecting block, and the first connecting plate is welded to one end of the movable block away from the connecting block.

[0009] As a further solution of the utility model, in order to enable the reset member mechanism to work stably; the reset member mechanism includes a first spring and a second connecting plate, the second connecting plate is movably connected in the groove, one side of the second connecting plate is welded to an end of the connecting block away from the first connecting axis, and the other side of the second connecting plate is fixed to the other end of the first spring.

[0010] When the utility model is working, the first nylon tube and the second nylon tube are connected, and the rotation makes the nut and the nut assembly fit together. During the rotation process, the nut and the nut assembly fit together tighter and tighter, and the first connecting plate is driven to move, and the movable block is driven to move into the through hole until it moves into place. At this time, the movable block pushes the upper section of the connecting block out of the groove, and the L-shaped clamping block rotates around the first connecting axis under the action of the torsion spring, and the other end of the L-shaped clamping block is clamped on the side of the nut away from the nut assembly.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The movable block moves in the through hole, and then pushes the upper section of the connecting block out of the groove. Under the action of the torsion spring, the L-shaped clamping block rotates around the first connecting axis, and the other end of the L-shaped clamping block is engaged with the side of the nut away from the nut assembly. This setting enables the nut and the nut assembly to be firmly locked and limited, and will not move backwards due to vibration, further enhancing the stability of the nut connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a structural diagram of the nut assembly of the utility model;

[0015] Figure 3 It is a cross-sectional view of the nut assembly of the utility model;

[0016] Figure 4 It is a structural diagram of the upper connecting component in the utility model.

[0017] In the figure: 1 air pipe assembly; 11 first nylon tube; 12 second nylon tube; 3 connection fixing mechanism; 32 nut assembly; 33 groove; 34 through hole; 35 connecting block; 36 first connecting shaft; 37 torsion spring; 38 L-shaped clamping block; 39 movable block; 390 first connecting plate; 4 reset member mechanism; 41 first spring; 42 second connecting plate. DETAILED DESCRIPTION

[0018] In order to make the technical problems to be solved, technical solutions and advantages of the present invention more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0019] See also Figure 1-4 In an embodiment of the utility model, a nylon tube connection fixing mechanism for a rail locomotive comprises:

[0020] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0021] A nylon tube connection and fixing mechanism for a rail locomotive comprises an air pipe assembly 1, wherein the air pipe assembly 1 is connected via a first nylon tube 11 and a second nylon tube 12; a connection and fixing mechanism 3 is arranged between the first nylon tube 11 and the second nylon tube 12; the connection and fixing mechanism 3 comprises a nut assembly 32 threadedly connected to the first nylon tube 11 or the second nylon tube 12, grooves 33 provided on both sides of the nut assembly 32, and a reset member mechanism 4 arranged to match the grooves 33; a nut is further arranged on the first nylon tube 11 or the second nylon tube 12, and the nut is locked with the nut assembly 32; the reset member mechanism 4 comprises an upper connection assembly and a lower connection assembly, and the upper connection assembly and the lower connection assembly are frictionally fitted; the upper connection assembly comprises a connection block 35 , a first connecting shaft 36 arranged at one end of the connecting block 35, a torsion spring 37 and an L-shaped block 38 sleeved on the first connecting shaft 36, and a through hole opened on the side of the groove 33; the connecting block 35 is movably connected in the groove 33; the lower connecting component includes a movable block 39 and a first connecting plate 390; the movable block 39 is movably connected in the through hole 34 and fits with the side of the connecting block 35, and the first connecting plate 390 is welded to the end of the movable block 39 away from the connecting block 35; the reset member mechanism 4 includes a first spring 41 and a second connecting plate 42, the second connecting plate 42 is movably connected in the groove 33, one side of the second connecting plate 42 is welded to the end of the connecting block 35 away from the first connecting shaft 36, and the other side of the second connecting plate 42 is fixed to the other end of the first spring 41.

[0022] When the utility model is working, the first nylon tube 11 and the second nylon tube 12 are connected, and the nut and the nut assembly 32 are rotated to fit together. During the rotation process, the nut and the nut assembly 32 are fitted together more and more tightly, and the first connecting plate 390 is driven to move, and at the same time, the movable block 39 is driven to move into the through hole 34 until it moves into place. At this time, the movable block 39 pushes the upper section of the connecting block 35 out of the groove 33, and the L-shaped clamping block 38 rotates around the first connecting shaft 36 under the action of the torsion spring 37, and the other end of the L-shaped clamping block 38 is clamped on the side of the nut away from the nut assembly 32, so that effective locking can be formed.

[0023] 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 nylon tube connection and fixing mechanism for a railway locomotive, comprising an air tube assembly (1), wherein the air tube assembly (1) is connected via a first nylon tube (11) and a second nylon tube (12); characterized in that: A connecting and fixing mechanism (3) is provided between the first nylon tube (11) and the second nylon tube (12); the connecting and fixing mechanism (3) comprises a nut assembly (32) threadedly connected to the first nylon tube (11) or the second nylon tube (12), grooves (33) provided on both sides of the nut assembly (32), and a reset member mechanism (4) arranged to cooperate with the grooves (33); a nut is also provided on the first nylon tube (11) or the second nylon tube (12), and the nut cooperates with the nut assembly (32) for locking.

2. A nylon tube connection and fixing mechanism for a rail vehicle according to claim 1, characterized in that: The resetting member mechanism (4) comprises an upper connecting component and a lower connecting component, and the upper connecting component and the lower connecting component are frictionally fitted.

3. A nylon tube connection and fixing mechanism for a rail vehicle according to claim 2, characterized in that: The upper connecting assembly comprises a connecting block (35), a first connecting shaft (36) arranged at one end of the connecting block (35), a torsion spring (37) and an L-shaped clamping block (38) sleeved on the first connecting shaft (36), and a through hole provided on the side of the groove (33); the connecting block (35) is movably connected in the groove (33).

4. The nylon tube connection and fixing mechanism for rail locomotive according to claim 2, characterized in that: The lower connection assembly comprises a movable block (39) and a first connection plate (390); the movable block (39) is movably connected in the through hole (34) and abuts against a side edge of the connection block (35); the first connection plate (390) is welded to an end of the movable block (39) away from the connection block (35).

5. The nylon tube connection and fixing mechanism for rail locomotive according to claim 1, characterized in that: The reset member mechanism (4) comprises a first spring (41) and a second connecting plate (42), wherein the second connecting plate (42) is movably connected in the groove (33), one side of the second connecting plate (42) is welded to an end of the connecting block (35) away from the first connecting shaft (36), and the other side of the second connecting plate (42) is fixed to the other end of the first spring (41).

Images