CN220314828U - Automatic door of rear turning freight car box - Google Patents

Abstract

The automatic door of the backward turning freight car box body is arranged at the tail part of the freight car box body with the backward turning function, the box body is arranged on the auxiliary frame and comprises a tail door, a big arm, a pull rope, a translation cylinder and an automatic lock, wherein the big arm is fixed at the upper part of the tail door, the lower part of the big arm is hinged with the box body through a hinging seat, the end part of the big arm is connected with the auxiliary frame through the pull rope, the automatic lock is arranged at the tail part of the auxiliary frame, and when the box body moves forwards and backwards, the locking and unlocking of the automatic door are automatically completed; the utility model utilizes the backward movement of the box body to realize the automatic unlocking and the complete opening of the tail door, saves the time of unlocking and opening the door, moves the gravity center of the tail door forward, increases the pressure of the tail door to the tail part of the box body when the tail door is closed, and is convenient for automatically closing the door.

Description

Automatic door of rear turning freight car box

Technical Field

The utility model belongs to the field of transportation means, and particularly relates to an automatic door of a rear-turning freight transportation box body used on a translational rear-turning self-unloading freight transportation box.

Background

Freight containers are one of the common tools for transporting goods, and particularly in bulk transportation, the application of the freight containers is more extensive; for road transportation, the freight container is generally loaded on a skeleton car, and then the skeleton car is towed by a tractor for transporting the freight, that is, the freight container is separated from the skeleton car; in order to improve the transportation efficiency, people invent a freight container with a self-unloading function, particularly, in order to adapt to the tail unloading of the freight container, people invent a freight container with a self-unloading function which is tilted backwards, so that the unloading efficiency is greatly improved.

The existing freight container tail gate is basically divided into two types, namely a tail gate which is manually opened and closed, and a tail gate which is automatically opened and closed, wherein the upper part of the tail gate is hinged with a container body, when the container body is turned backwards, a door lock is opened, the lower end of the tail gate is separated from the container body under the action of gravity, and always keeps a vertical state with the ground, but the opening degree is insufficient for unloading, and during unloading, the cargo can be prevented from automatically sliding out of the container body, so that the unloading efficiency is influenced, particularly for bulk cargo, the flow speed is low during unloading, the tail gate is easy to adhere to the tail part, and because the gravity center of the tail gate is on a door plate of the tail gate, after the container body falls down, the pressure of the tail gate is insufficient, the tail gate is easy to be jacked up by the cargo adhered to the tail part, and the tail gate can be closed after the container body is cleaned manually, so that the freight container is very inconvenient to use.

Disclosure of Invention

Aiming at the problems of the tail door of the existing freight container, the utility model utilizes the backward movement of the container body to realize the automatic unlocking and the complete opening of the tail door, saves the time for unlocking and opening the door, moves the gravity center of the tail door forward, increases the pressure of the tail door to the tail part of the container body when the tail door is closed, and is convenient for automatically closing the door.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides an automatically-controlled door of back turning over freight train carriage, automatically-controlled door installs at the freight train carriage afterbody that has the back function of turning over after shifting, and the box sets up on the subframe, including tail-gate, big arm, cable, translation hydro-cylinder and automatic lock, big arm is fixed on tail-gate upper portion, and big arm lower part is articulated with the box through articulated seat, and big arm tip passes through the cable and is connected with the subframe, and automatic lock installs the afterbody at the subframe, when the box back-and-forth movement, accomplish locking and unblock to the automatically-controlled door automatically.

Further, the auxiliary frame is placed on the skeleton car and is clamped with the skeleton car, so that the auxiliary frame can be quickly separated from the skeleton car.

Further, the translation oil cylinder is arranged on the auxiliary frame, a piston rod of the translation oil cylinder is connected with the box body, and when the piston rod moves, the box body is driven to translate on the auxiliary frame.

Further, the number of the big arms is two, and the rear ends of the two big arms are fixedly connected with the upper part of the tail gate through the connecting seat, so that the stability is improved.

Further, the pulley is arranged at the lower part of the box body, the guy cable at the front end of the large arm is connected with the guy cable fixing rod fixed on the auxiliary frame after passing through the pulley, the walking path of the guy cable is prolonged, the pulling force direction of the guy cable is changed, and the pulling force born by the guy cable is reduced.

Further, the automatic lock comprises a lock body and a pressure spring, wherein the front end of the lock body is a downward-protruding arc body, the rear end of the lock body is an upward lock hook, the middle part of the lock body is hinged with the lower part of the box body, and two ends of the pressure spring are respectively connected with the bottom of the box body and the front part of the lock body.

Advantageous effects

The utility model has the advantages that the rear movement of the box body on the auxiliary frame is utilized, the automatic unlocking of the tail door is completely opened in the rear movement process, the automatic closing of the tail door can be completed in the forward movement process, the gravity center of the tail door is moved forward, the lower part of the tail door always has certain pressure on the tail part of the box body, the situation that a lock is damaged and is thrown and missed is avoided, the pressure of the tail door on the tail part of the box body is increased, the influence of the adhesion of the tail part of the box body on the closing of the tail door is reduced, and the automatic locking of the tail door is completed when the forward movement is finished, so that the use is very convenient.

Drawings

FIG. 1 is a schematic view of an automated door of a rear dump truck box of the present utility model;

FIG. 2 is a schematic view of the tailgate open when moved rearwardly relative to the case of FIG. 1;

FIG. 3 is an enlarged schematic view of the automatic lock of FIG. 1;

in the figure: the device comprises a 1-subframe, a 2-box body, a 3-tail door, a 4-hinge seat, a 5-large arm, a 6-inhaul cable, a 7-pulley, an 8-inhaul cable fixing rod, a 9-lock body, a 10-pressure spring and an 11-cross beam.

Detailed Description

The automatic door of the rear cargo box according to the present utility model will be described in more detail with reference to the accompanying drawings by way of specific embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In order to better explain the technical scheme of the utility model, the specific embodiment of the utility model is further described with reference to the accompanying drawings, as shown in fig. 1-3, an automatic door of a backward turning freight car box body is arranged at the tail part of a freight car box body 2 with backward turning function, the box body 2 is arranged on a subframe 1, the subframe 1 is placed on a skeleton car and is clamped with the skeleton car and can be quickly separated from the skeleton car, a translation oil cylinder is arranged on the subframe 1, a piston rod of the translation oil cylinder is connected with the box body 2, and the piston rod drives the box body 2 to translate on the subframe 1 when moving.

In this embodiment, the automatically-controlled door includes tail-gate 3, big arm 5, cable 6, translation hydro-cylinder and automatic lock, big arm 5 is fixed on tail-gate upper portion, and big arm 5 is two, and the rear end of two big arms 5 is all through connecting seat and tail-gate 3 upper portion fixed connection, improves stability, and articulated seat 4 is articulated with box 2 in big arm 5 middle part, makes the focus of tail-gate shift to the tail-gate front side, and big arm 5 tip is connected with subframe 1 through cable 6, box 2 lower part is provided with pulley 7, and cable 6 of big arm 5 front end is connected with cable dead lever 8 fixed on subframe 1 behind pulley 7, and the walking route of extension cable changes the pulling force direction of cable, reduces the pulling force that the cable bore, and the afterbody at the subframe is installed to the automatic lock, automatic lock includes lock 9 and pressure spring 10, and lock 9 front end is the bellied circular arc body downwards, and lock 9 rear end is ascending latch hook, and box 2 lower part articulates, and pressure spring 10 both ends are connected with box 2 front and back to the automatic box 2 respectively, and the lock is accomplished when the door is locked to the front and is unlocked.

When the device is applied, the translation oil cylinder plays a role in pushing the box body to move back and forth on the auxiliary frame, the mounting position of the translation oil cylinder is not limited, when the device is unloaded, the translation oil cylinder is started, the box body is pushed to move back on the auxiliary frame, the lock body moves back along with the box body until the front end of the lock body meets a cross beam fixed at the tail part of the auxiliary frame, the front end of the lock body rotates upwards under the blocking of the cross beam, the rear end of the lock body rotates downwards, the lock of the tail door is released, at the moment, a guy cable is pulled up along with the back movement of the box body, the tail door is pulled up, the tail door rotates upwards around a hinging seat, the back movement of the box body is finished, and the box door is completely opened; after the unloading is finished, along with the forward movement of the box body, the tail gate is gradually closed, when the front end of the lock body meets the cross beam, the front end of the lock body rotates upwards under the blocking of the cross beam, the rear end of the lock body rotates downwards, at the moment, the tail gate is completely closed, and after the front end of the lock body passes through the cross beam, the rear end of the lock body resets upwards under the action of the pressure spring, so that the locking of the tail gate is finished.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, whether direct or indirect.

While the exemplary embodiments of the present utility model have been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that many changes and modifications can be made to the specific embodiments described above without departing from the spirit of the utility model, and that many combinations of technical features and structures can be made without departing from the scope of the utility model.

Claims (6)

1. The utility model provides an automatically-controlled door of back turning over freight train box, automatically-controlled door installs at freight train box afterbody that has the back and turns over function after shifting, and the box sets up on the subframe, its characterized in that: including tail-gate, big arm, cable, translation hydro-cylinder and automatic lock, big arm is fixed on tail-gate upper portion, and big arm lower part is articulated with the box through articulated seat, and big arm tip is connected with the subframe through the cable, and automatic lock installs the afterbody at the subframe.

2. An automated door for a rear dump truck box as defined in claim 1 wherein: the auxiliary frame is placed on the skeleton car and is clamped with the skeleton car, so that the auxiliary frame can be quickly separated from the skeleton car.

3. An automated door for a rear dump truck box as defined in claim 1 wherein: the translation cylinder is arranged on the auxiliary frame, a piston rod of the translation cylinder is connected with the box body, and when the piston rod moves, the box body is driven to translate on the auxiliary frame.

4. An automated door for a rear dump truck box as defined in claim 1 wherein: the two large arms are arranged, and the rear ends of the two large arms are fixedly connected with the upper part of the tail gate through connecting seats.

5. An automated door for a rear dump truck box as defined in claim 1 wherein: the lower part of the box body is provided with a pulley, and a guy cable at the front end of the big arm is connected with a guy cable fixing rod fixed on the auxiliary frame after passing through the pulley.

6. An automated door for a rear dump truck box as defined in claim 1 wherein: the automatic lock comprises a lock body and a pressure spring, wherein the front end of the lock body is a downward-protruding arc body, the rear end of the lock body is an upward latch hook, the middle part of the lock body is hinged with the lower part of the box body, and two ends of the pressure spring are respectively connected with the bottom of the box body and the front part of the lock body.