CN110615014A - Fixing device for folding coupler of railway vehicle - Google Patents

Abstract

The invention relates to a folding coupler fixing device for rail vehicles, comprising a hook seat, a limit block, a pull rod and a tension spring. The hook seat has a bottom plate and two hooks fixed on the bottom plate, the limit block is rotatably connected with the tail of the hook, and the limit block is connected with the pull rod. The head of the limiter is connected by a limit post fixed at the bottom of the limiter. The head of the limiter has a depression. When the head of the limiter is lifted, the depression and the hooks of the two hooks form a accommodating and limiting coupler. The space for fixing the rod, the two ends of the tension spring are respectively connected to the hook seat and the pull rod, which are used to pull the pull rod, so that the pull rod pushes the limit block through the limit column to lift the head of the limit block. When the coupler is folded and fixed, the coupler can be folded directly, which can realize the automatic fixing limit. When the coupler is released, the release can be realized by pulling the pull rod without special tools. .

Description

Rail vehicle folding coupler fixing device

technical field

The invention relates to a folding coupler fixing device for rail vehicles, which belongs to the technical field of coupler fixing suitable for rail vehicles.

Background technique

At present, the folding couplers configured on light rail vehicles are generally fixed to the vehicle body by means of bolts, which are inconvenient to operate. The use of bolts requires special tools to realize opening or fixing, which is inconvenient to operate, and is not conducive to coupler connection and vehicle rescue.

After searching, it is found that Chinese invention patent application CN 109455192 A discloses a foldable coupler locking mechanism. A locking turret under the action of a locking spring is arranged at the rotation of the coupler, and the vehicle is realized by pressing the locking turret against the locking disc. Two state locks. The mechanism is locked by a spring, and when the coupler is subjected to an external force, it is easy to overcome the elastic force of the spring to unlock, so the stability of the locking mechanism is not high.

SUMMARY OF THE INVENTION

The purpose of the present invention is mainly to solve the above-mentioned problems of the prior art, and to provide a folding coupler fixing device for a rail vehicle, which is convenient for locking and unlocking the coupler and has good stability.

In order to solve the above technical problems, the rail vehicle folding coupler fixing device provided by the present invention is characterized in that it includes a hook seat, a limit block, a tension rod and a tension spring, and the hook seat has a bottom plate and two hooks fixed on the bottom plate, so The limit block is rotatably connected with the tail of the hook, the limit block and the head of the pull rod are connected by a limit column fixed at the bottom of the limit block, the head of the limit block has a depression, and the head of the limit block is lifted The recess and the hook heads of the two hooks form a space for accommodating and limiting the coupler fixing rod. The two ends of the tension spring are respectively connected with the hook seat and the pull rod, which are used to pull the pull rod, so that the pull rod pushes the limit through the limit column. block so that the head of the stop block is raised.

The present invention also protects a rail vehicle, which is characterized by comprising the above-mentioned rail vehicle folding coupler fixing device.

In the present invention, a set of fixing and limiting devices is cleverly composed of a pull rod, a limit block, a hook seat, a coupler fixing rod and a spring. When the coupler is folded and fixed, the coupler is directly folded, and the automatic fixed limit can be realized. When the coupler is released, the pull rod can be pulled. It can be released without special tools and can be operated with bare hands, which greatly facilitates the operation process and process of coupler folding and fixing.

Description of drawings

Fig. 1 is a perspective view of a folding coupler fixing device for a rail vehicle according to the present invention.

Fig. 2 is an exploded view of the folding coupler fixing device of the rail vehicle according to the present invention.

3 is a schematic diagram of the back of the folding coupler fixing device for a rail vehicle according to the present invention.

Fig. 4 is a schematic diagram of the use state of the rail vehicle folding coupler fixing device of the present invention.

The symbols in the figure are as follows:

1-Tie rod, 11-Tie rod oblong hole, 12-Bump, 2-Limit block, 21-Limit column, 22-Depression, 3-Hook seat, 31-Bottom plate, 32-Hook, 33-Hook seat oblong hole , 34-positioning pin, 4-coupler, 5-tension spring, 6-buffer beam mounting plate, 7-rotating pin, 8-coupler fixing rod.

Detailed ways

Embodiments of the present invention will be explained below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3 , the rail vehicle folding coupler fixing device in this embodiment mainly includes a hook seat 3 , a limit block 2 , a pull rod 1 , a pull spring 5 and a rotating pin 7 . The hook seat 3 has a bottom plate 31 and two hooks 32 fixed to the bottom plate, the limit block 2 and the tail of the hook 32 are rotatably connected by a rotating pin 7, and the limit block 2 and the head of the pull rod 1 are fixed on the bottom of the limit block 2. The limit post 21 is connected, and the head size of the limit post 21 is larger than the neck size. The seat has an oblong hole 33. The head of the limit block 2 has a recess 22. When the head of the limit block 2 is lifted, the recess 22 and the hook heads of the two hooks 32 form a receiving and limiting coupler fixing rod 8 (the coupler fixing rod 8 is fixed on the coupler. 4), the two ends of the tension spring 5 are respectively connected to the hook seat 3 and the pull rod 1, which are used to pull the pull rod 1, so that the pull rod 1 pushes the limit block 2 through the limit column 21, so that the head of the limit block 2 is lifted. . The hook seat 3 is fixed to the bumper beam of the vehicle through the bumper mounting plate 6 .

In this example, a protrusion 12 is provided on the upper surface of the pull rod 1 , and a positioning pin 34 for limiting the position of the protrusion 12 is fixed on the hook seat 3 . The two ends of the tension spring 5 are respectively hooked on the rotating pin 7 and the pin provided on the convex block 12 .

When assembling, first install the tie rod oblong hole and the limit post on the hook seat, screw in the rotating pin to fix the limit block, then install the spring to generate pre-tension, tighten the tie rod, and finally install the positioning pin to limit the vertical positioning of the hand rod.

When the coupler is fixed, it is only necessary to turn the coupler. The slope pressure of the limit block of the coupler fixing rod overcomes the pre-tension of the spring. After the coupler fixing rod enters the hook, the action on the limit block is released, and the limit block is pre-tensioned by the tension spring and automatically bounces. And limit and fix the coupler rod. No tools are required and can be operated by a single person. Because the spring tightens the tie rod, the tie rod pushes in the direction of the hook, so that the head of the limit block is kept in a raised state, which restricts the coupler fixing rod from coming out of the hook, and the coupler fixing rod is restricted, so as to realize the fixing effect on the coupler.

When the coupler is released, the pull rod overcomes the pre-tension of the spring, thereby pulling the limit post. Since the limit block is restricted by the rotating pin, the limit block can only rotate around the rotating pin, so that the limit block falls into the hook seat, and the coupler The securing device is unlocked, the coupler lever is released, and the coupler is released.

The folding coupler fixing device is especially suitable for rail vehicles.

In addition to the above-described embodiments, the present invention may also have other embodiments. All technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims (8)

1. A folding coupler fixing device for a rail vehicle, characterized in that it comprises a hook seat (3), a limit block (2), a pull rod (1), and a tension spring (5), and the hook seat (3) has a bottom plate ( 31) and two hooks (32) fixed on the bottom plate, the limit block (2) is rotatably connected to the tail of the hook (32), and the limit block (2) and the head of the pull rod (1) are fixed to the limit The limit post (21) at the bottom of the block (2) is connected, the head of the limit block (2) has a recess (22), and when the head of the limit block (2) is lifted, the recess (22) is connected to the head of the limit block (2). The hook heads of the two hooks (32) form a space for accommodating and limiting the coupler fixing rod (8), and the two ends of the tension spring (5) are respectively connected with the hook seat (3) and the pull rod (1) for pulling the pull rod (1), make the tie rod (1) push the limit block (2) through the limit post (21) so that the head of the limit block (2) is lifted. 2 . The folding coupler fixing device for a rail vehicle according to claim 1 , wherein the hook seat ( 3 ) is fixed on the buffer beam of the vehicle through the buffer beam mounting plate ( 6 ). 3 . 3 . The rail vehicle folding coupler fixing device according to claim 1 , wherein the head size of the limit post ( 21 ) is larger than the neck size, and the pull rod ( 1 ) has a tolerance limit post ( 21 ). 4 . ) an oblong hole (11) of the pull rod through which the neck passes, and the hook seat (3) has an oblong hole (33) of the hook seat for accommodating the head of the limiting column (21). 4 . The rail vehicle folding coupler fixing device according to claim 1 , wherein a bump ( 12 ) is provided on the upper surface of the tie rod ( 1 ), and the hook seat ( 3 ) is fixed with a bump ( 12 ). 5 . ) to limit the positioning pin (34). 5 . The rail vehicle folding coupler fixing device according to claim 4 , wherein the limiting block ( 2 ) and the hook seat ( 3 ) are rotatably connected by a rotating pin ( 7 ). 6 . 6 . The rail vehicle folding coupler fixing device according to claim 5 , wherein the two ends of the tension spring ( 5 ) are respectively hooked on the rotating pin ( 7 ) and the pin provided on the convex block ( 12 ). 7 . 7 . The folding coupler fixing device for a rail vehicle according to claim 6 , wherein the coupler fixing rod ( 8 ) is fixed on the bottom of the coupler ( 4 ). 8 . 8. A rail vehicle, characterized in that it has the rail vehicle folding coupler fixing device according to any one of claims 1-7.