A centering device for through-passage

Abstract

The present invention belongs to the technical field of rail transit equipment, and specifically relates to a centering device for a through-passage. The main structure comprises an adjusting rod, an end, a locking piece, a joint, a protective cover, a small mounting seat, a screw assembly, a retaining ring and a large mounting seat. The two ends of the adjusting rod are respectively connected to the end, a locking piece is arranged between the adjusting rod and the end, a joint is arranged inside the end, and a protective cover is arranged at the upper end and the lower end of the joint. One end of the small mounting seat extends into the joint and the protective cover and is connected to the end through a screw assembly and a retaining ring. One of the small mounting seats is connected to the large mounting seat, and the large mounting seat and the small mounting seat in a free state are respectively fixedly connected to the middle frame and the connector (car body frame), and can be installed at different positions of the frame as needed to play a centering or positioning role. The through-passage has strong adaptability, can make the through-passage meet various movement requirements of the vehicle, and improve the comfort level of the train; the modular design of the through-passage is realized, and the manufacturing and maintenance costs are reduced.

Description

Technical field:

[0001] The invention belongs to the technical field of rail transit equipment, and in particular relates to a centering device for a through passage, which can continuously provide balanced pulling force. Background technology:

[0002] The gangway is an internal passage that allows passengers to walk freely from one car to another in a rail transit vehicle and makes passengers feel safe and comfortable. The centering device is one of the important components of the gangway. Chinese Patent 20152010670.2 discloses a tension-balanced elastic centering device, the main structure of which includes a gusset plate, a clamping sleeve, a wire rope, an eye screw, a nut, a wear layer, a pulley, a tension spring, a hexagonal nut, a hook, a wheel sleeve, a rivet, a frame, a reinforcement block, a connecting assembly and a connecting buckle; the elastic centering device is a symmetrical structure with a tension spring connected in the middle, and its two ends are respectively connected between the body frame and the middle frame. The wire rope assembly is composed of a gusset plate, a clamping sleeve, a wire rope, an eye screw, a nut and a wear layer. One end of the wire rope locks the wear layer through the clamping sleeve and is connected to the gusset plate, and the other end of the wire rope passes through the wear layer. It is connected with the eye screw and nut; one side of the wire rope assembly is fixedly connected to the vehicle body frame by the hexagonal nut and the eye screw, and the other side is connected to the middle frame by the buckle plate. The wire rope in the wire rope assembly passes through the pulley to provide centering tension for the middle frame; the frame body and the reinforcement block are welded and fixed to form a pulley frame assembly, the wire rope is passed between the pulley and the pulley frame assembly, the frame body is connected to the fixed wheel sleeve by rivets, the reinforcement block is fixedly connected by the hexagonal nut and the hook, and the hook is connected to the tension spring; the pulley is connected to the pulley frame assembly by the wheel sleeve and rivets and rolls freely along the wire rope, and the pulley rotates freely around the wheel sleeve; the tension spring is connected to the pulley frame assembly through the hook. It is an I-shaped structure composed of tension springs, tightening ropes, rollers and other parts. The centering force cannot completely offset the inertia of the middle frame itself. The middle frame shakes back and forth and swings left and right due to its own inertia, and even twists and deflects, which easily causes friction and collision between the middle frame and the connecting parts and other parts, posing a hidden danger to the personal safety of passengers and the safety of vehicle operation. At the same time, it is easy to cause damage to the gangway itself, such as tearing and bruising. Therefore, a centering device for the gangway with a simple structure and high reliability is developed to continuously provide balanced tension to meet various working conditions. Summary of the invention:

[0003] The purpose of the invention is to overcome the shortcomings of the prior art and provide a centering device for a through-channel to ensure that the connector can meet the safety and reliability of the vehicle during various movements and prevent the connector from shaking back and forth and swinging left and right.

[0004] In order to achieve the above-mentioned purpose, the main structure of the centering device for a through-channel involved in the present invention includes an adjusting rod, an end, a locking piece, a joint, a protective cover, a small mounting seat, a screw assembly, a retaining ring and a large mounting seat; the two ends of the adjusting rod are respectively connected to the end, a locking piece is arranged between the adjusting rod and the end, a joint is arranged inside the end, and a protective cover is arranged at the upper and lower ends of the joint, one end of the small mounting seat extends into the joint and the protective cover and is connected to the end through a screw assembly and a retaining ring, and one of the small mounting seats is connected to the large mounting seat.

[0005] The small mounting seat involved in the present invention is connected with the large mounting seat through a bolt assembly.

[0006] The two side wing plates of the small mounting seat and the two ends of the large mounting seat of the present invention are both provided with mounting holes.

[0007] Compared with the prior art, the present invention is fixedly connected to the middle frame and the connector (car body frame) respectively through the large mounting seat and the small mounting seat in a free state, and can be installed at different positions of the frame as needed to play a centering or positioning role. It has strong adaptability and can make the gangway meet various movement requirements of the vehicle and improve the comfort level of the train. It has a simple manufacturing process, a compact structure, and is easy to install. It can meet the requirements of complex working conditions without increasing the overall dimensions, reduces the working space, improves the curve passing capacity of the gangway, realizes the modular design of the gangway, and reduces the manufacturing and maintenance costs. Description of the drawings:

[0008] Figure 1 It is a schematic diagram of the main structural principle of the present invention.

[0009] Figure 2 It is a top view of the main structure of the present invention.

[0010] Figure 3 It is a side view of the main structure of the present invention.

[0011] Figure 4 It is a cross-sectional view of the main structure of the present invention.

[0012] Figure 5 It is an exploded view of the main structure of the present invention.

[0013] Figure 6 It is a schematic diagram of the local structure of the present invention. Specific implementation method:

[0014] The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings.

[0015] Embodiment 1:

[0016] The main structure of the centering device for the through-channel involved in this embodiment includes an adjusting rod 1, an end 2, a locking piece 3, a joint 4, a protective cover 5, a small mounting seat 6, a screw assembly 7, a retaining ring 8, a bolt assembly 9, a large mounting seat 10 and a mounting hole 11; the two ends of the adjusting rod 1 are respectively connected to the end 2, a locking piece 3 is arranged between the adjusting rod 1 and the end 2, a joint 4 is arranged inside the end 2, and a protective cover 5 is arranged at the upper and lower ends of the joint 4. One end of the small mounting seat 6 extends into the joint 4 and the protective cover 5 and is connected to the end 2 through the screw assembly 7 and the retaining ring 8. One of the small mounting seats 6 is connected to the large mounting seat 10 through the bolt assembly 9, and mounting holes 11 are provided on both side wings of the small mounting seat 6 and both ends of the large mounting seat 10.

[0017] When the centering device involved in this embodiment is installed, an end head 2 is installed at each end of the adjusting rod 1. After the spacing between the two end heads 2 is adjusted by the thread set at the end of the adjusting rod 1, the end head 2 is locked using the locking member 3, and then the protective cover 5, the retaining ring 8 and the end head 2 with the joint 4 set inside are fixed to the small mounting seat 6 in sequence using the screw assembly 7, so as to realize the first assembly of the centering device for the through-channel; and then the bolt assembly 9 is used to fasten one of the small mounting seats 6 with the large mounting seat 10 to realize the complete combination of the centering device for the through-channel; at this time, the other small mounting seat 6 and the large mounting seat 10 are in a completely free state, and the two can form an angle that meets any working condition of the train. Based on the characteristic that the joint 4 can only rotate but not move, the distance between the other small mounting seat 6 and the large mounting seat 10 is guaranteed to be constant, so as to realize the centering effect; the leaping structure of the large mounting seat 10 expands the application scope of the centering device for the through-channel, greatly alleviates the stress on the adjusting rod 1, improves the service life of the centering device, and reduces the maintenance cost.

Claims

1. A centering device for a through passage, characterized in that: The main structure includes an adjusting rod, an end, a locking piece, a joint, a protective cover, a small mounting seat, a screw assembly, a retaining ring and a large mounting seat; both ends of the adjusting rod are connected to the end heads respectively, a locking piece is arranged between the adjusting rod and the end heads, a joint is arranged inside the end heads, and protective covers are arranged at the upper and lower ends of the joints. One end of the small mounting seat extends into the joint and the protective cover and is connected to the end heads through a screw assembly and a retaining ring, one of the small mounting seats is connected to the large mounting seat, and the small mounting seat is connected to the large mounting seat through a bolt assembly, and mounting holes are arranged on both side wing plates of the small mounting seat and both ends of the large mounting seat.

2. The centering device for a through passage according to claim 1, characterized in that: During installation, an end cap is installed at each end of the adjusting rod. After the spacing between the two end caps is adjusted by the thread set at the end of the adjusting rod, the end caps are locked using a locking piece, and then the protective cover, the retaining ring and the end caps with internal joints are fixed to the small mounting seat in sequence using a screw assembly to achieve the first assembly of the centering device for the through-aisle; then the bolt assembly is used to fasten one of the small mounting seats to the large mounting seat to achieve a complete combination of the centering device for the through-aisle; at this time, the other small mounting seat and the large mounting seat are in a completely free state, and the two can form an angle that meets any working condition of the train. Based on the characteristic that the joint can only rotate but not move, the distance between the other small mounting seat and the large mounting seat is guaranteed to be constant to achieve a centering effect.

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