CN2628364Y

CN2628364Y - Railway freight wagon door locking apparatus

Info

Publication number: CN2628364Y
Application number: CN 03263875
Authority: CN
Inventors: 刘自忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-03
Filing date: 2003-06-03
Publication date: 2004-07-28
Anticipated expiration: 2013-06-03

Abstract

The utility model relates to a lock, in particular to a railway freight wagon door locking apparatus, which comprises a locked gear wheel, a gear rack, a transmission gear wheel, and a hand crank handle. The utility model is aimed at preventing the door from being opened by man action or vibration so as to ensure antitheft and train operation safety. The utility model is characterized in that the gear blocks on the gear wheel mesh with the gear teeth. The locked gear wheel and the transmission gear wheel share the same shaft. The transmission gear wheel meshes with the transmission gear wheel. The shaft of the transmission gear wheel is connected with and the crank handle through an internally wedged connecting end. By adopting the utility model, antitheft function of railway freight wagon door will be more perfect and reliable to guarantee train operation safety.

Description

Railway truck car door locking device

Technical field:

The utility model relates to lock, particularly a kind of later-model railway truck car door locking device.

Background technology:

Box car is the principal mode lorry that is used for loading and transporting valuable goods on the China railways and is afraid of the wet goods thing, and its quantity accounts for 2/5 of system-wide lorry sum.The box car car door is located at car body side wall center, adopts the sliding door of the left and right passing of two fans, and seal up with sealing lock with door nose, knocker two fan door junctions; Door nose, knocker and sealing lock are all exposed outside.In recent years, because artificially broken by force envelope, the phenomenon of stealing goods in the car is on the rise.Open-top car is an another kind of main lorry on the China railways, and its quantity and box car are suitable.The open-top car car door also is located at car body side wall center, but adopts two fan clamshell doors, and two fan doors are closed by latch.Because the strenuous vibration in the train operation causes latch to be lifted, and causes car door opening (also having many human elements that clamshell doors is opened).Clamshell doors after opening will very likely be clashed into the other building of railway above vehicle gauge of the locomotive, thus the train operation accident of causing.

The utility model content:

The purpose of this utility model be to prevent car door by the people for opening or opening because of vibrations, play antitheft and guarantee the effect of traffic safety.

The purpose of this utility model is achieved like this:

This device is by the hand crank arm revolving gear, and gear drive tooth bar sway is to reach the purpose of locking or release.

Description of drawings:

Fig. 1 is the overall structure birds-eye view of this device.

Fig. 2, Fig. 3 are the A-A cutaway view of Fig. 1.

Fig. 2 is a locking position constitution diagram.

Fig. 3 is for separating the lock-bit constitution diagram.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Referring to Fig. 1～Fig. 3, this device mainly by locking gear 1, tooth bar 2, transmission gear 3, and crank 4 form.Locking gear 1 and transmission gear 3 are in-line gears.Tooth piece 8 and locking arc piece 6 are arranged on the locking gear 1.Tooth bar 2 places the below of locking gear 1.Tooth bar 2 is driven by locking gear 1, and tooth bar 2 front ends are dead bolt 7.

This device divides locking position (Fig. 2) to conciliate lock-bit (Fig. 3).This device when separating lock-bit on (Fig. 3) locking gear 1 last dedentition of right-hand member go into tooth bar 2 right-hand members, the locking arc piece 6 on the gear 1 blocks tooth bar 2.Counterclockwise rotation moving gear 1, tooth bar 2 moves right, and goes into tooth bar 2 left ends until last dedentition of gear 1 left end; At this moment, dead bolt 7 stretches in the dead bolt hole of another car door, and car door is pinned (Fig. 2).Gear 1 is clockwise rotated, and tooth bar 2 is moved to the left, and goes into tooth bar 2 right-hand members until last dedentition of tooth bar 2 right-hand members; At this moment, withdraw from the dead bolt hole of dead bolt 7 by another car door, car door could promote or rotate (Fig. 3).

Locking gear 1 is by transmission gear 3, by hand crank 4 rotation that matches with spools 10.

Several tooth pieces 8 and a locking arc piece 6 are arranged on the locking gear 1.

The inner polygon interface is adopted in being connected of the axle of hand crank 4 and transmission gear 3, and the no special tool of this device (crank 4) can't be opened.

Claims

1, railway truck car door locking device, mainly be made up of locking gear (1), tooth bar (2), transmission gear (3), axle (10) and crank (4), it is characterized in that: locking gear (1) is gone up tooth piece (8) that is provided with and the tooth mouth (9) that tooth bar (2) upward is provided with and is intermeshed.

2, railway truck car door locking device according to claim 1 is characterized in that: locking gear (1) and transmission gear (3) are in-line gears.

3, railway truck car door locking device according to claim 1, its spy is: several tooth pieces (8) and a locking arc piece (6) are arranged on the locking gear (1).