CN2778630Y

CN2778630Y - Vehicle brake release stick

Info

Publication number: CN2778630Y
Application number: CN 200420075575
Authority: CN
Inventors: 买汗买提江·提力瓦尔德
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-31
Filing date: 2004-12-31
Publication date: 2006-05-10
Anticipated expiration: 2014-12-31

Abstract

The utility model discloses a working tool for relieving braking when a railway vehicle is under the state of hand braking and machine braking. The utility model is composed of a bar head 1 and a bar body 2, which are connected into integration. The length of the bar head 1 is from 2 to 6 centimeters, and the included angle of the bar head 1 and the bar body 2 is from 90DEG to 120DEG. In order to carry conveniently, the tail part of the bar body 2 is made into a bend hook shape, and a chain hole can be bored at the tail part, or a lifting ring is arranged at the tail part. When in use, a vehicle brake release bar needs placing on a pedal 8 below a ratchet pawl 9. The tip end of the bar head 1 is butted with the tail part of the ratchet pawl 9. The bar body 2 is pressed downwards, so that the ratchet pawl 8 gets out of a tooth groove of a ratchet wheel 10 and then the ratchet wheel 10 and a braking shaft 4 slew. A braking chain 6 and a braking rod 7 relax, and a brake shoe loosens wheels in order to relieve braking.

Description

Vehicle is removed the lock rod

One, technical field

The utility model relates to a kind of instrument that is used for the railroad train shunting service, specifically is exactly to use the hand brake glancing impact when vehicle, is used for the instrument of brake off operation.

Two, technical background

Each joint railway carriage of load carrying vehicle all has a cover Pneumatic brake systems and a cover hand brake system in each that move on China railways at present.Pneumatic brake systems mainly is made up of braking reservoir, airduct, valve, release spring, brake lever, brake shoe, it is to enter the braking reservoir by the pressurized air in the airduct, promote the reciprocating motion of the pistons in the braking reservoir, the brake lever that moves through of piston drives brake shoe and holds tightly or unclamp wheel, thereby realizes that braking or brake off (being commonly called as alleviation) Pneumatic brake systems mainly use in the middle of train operation.Stop when train arrival need carry out the long period, or during the vehicle shunting service, particularly when locomotive with after railway carriage separates, owing to railway carriage has lost compressed-air actuated source, so Pneumatic brake systems just can't use.In order to prevent vehicle runaway voluntarily, must adopt the hand brake system.The hand brake system mainly is made up of braking handwheel, brake axle, pallet hammer, ratchet, ratchet, drum, drag chain.During left-hand revolution braking handwheel, drive drum by brake axle and rotate, drag chain and brake lever have been strained in the rotation of drum, and brake lever pulling brake shoe is held wheel tightly, reaches the purpose of braking.In order to keep braking mode for a long time, at the middle part of brake axle ratchet and pawl is installed, after glancing impact braking handwheel was tightened, ratchet snapped in the teeth groove of ratchet, and it is loosening to make it to circle round.Prior art problems occurs in when the needs brake off and (is commonly called as and removes lock), because the long-time stop of vehicle, compressed-air actuated discharge in the braking reservoir, make the pressure of release spring lose anti-perseverance (this process is commonly called as unintended release), this moment, ratchet increased suddenly to the pressure of ratchet, to such an extent as to can't the rolling brake handwheel with manpower, withdraw from ratchet, brake off.Owing to there is not special tool to withdraw from ratchet, the method one that present station operation personnel adopt is to pound ratchet with stone, and often handle breaks; Two are to use the hook of safety strap to pound, and so often cause the damage or the hidden danger of safety strap, cause safety misadventure; The 3rd, most of yard mans pull down the brake shoe pricker that train is using at present, prize ratchet with the brake shoe pricker, often throw away conveniently after using up, only the brake shoe pricker lost in 1 year of station, Hami just reaches up to a hundred more than according to statistics, this has not only caused waste, the more important thing is that because the brake shoe pricker is the part in addition that is used for installing and fixing brake shoe, the brake shoe pricker is removed and might causes train brake shoe in the middle of operation to come off, make brake failure, cause serious accidents such as collision, overturning.In addition, because the brake shoe of high-speed cruising drops into bounce-back behind the roadbed, may smash the reservoir, airduct of vehicle bottom etc., the safety that seriously jeopardizes vehicle.Also have above-mentioned three kinds of methods to have a common shortcoming to lose time exactly, because seek a suitable stone or dismantle the brake shoe pricker and all need the time, and these alternative tool operations that temporarily call in get up also very time-consuming, slow 2 minutes of imagination one joint railway carriage, a station will be wasted 3-5 hour in one day, be an enormous economic loss this today that density constantly increases that connects, dispatches a car at railway speed increase, station.

Three, summary of the invention

The purpose of this utility model provides and a kind ofly can guarantee safely, saves time, easy to carry, cheap vehicle is removed the lock instrument.

Vehicle is removed the lock rod and is made up of caput and excellent body, and caput and excellent body link and be one, and the length of caput is 2-6 centimetre, and the angle of caput and excellent body is 90 °-120 °.

The length of caput is that the best is 4 centimetres, and length the best of excellent body is 23 centimetres, and angle the best of caput and excellent body is 105 °.

For the ease of carrying, the afterbody of excellent body can be made hook solid, or excellent body afterbody is bored a chain hole, also can connect the suspension ring as key chain at excellent body afterbody.

Adopted last art technical scheme, when need are removed lock, as long as caput is placed on below the ratchet, the caput tip props up the ratchet afterbody, and at this moment the vehicle turning of removing the lock rod is against on the pedal, become the fulcrum of lever, as long as depress excellent body, the caput tip will make ratchet deviate from from the ratchet teeth groove, and the braking handwheel just can turn round, the take-off the brake chain, thus reach the purpose of brake off.

Because operation the time only need click, so it saves time, because it has avoided coming off of brake shoe, stone smashes staff and safety strap damages, so it has avoided train operation accident, has guaranteed safety; Because it can be made by a reinforcing bar, so it is cheap; Because its afterbody is shaped on crotch, hole or ring, can hang on the safety strap, so it is easy to carry.

Four, description of drawings

Fig. 1 is the subjectivity figure that vehicle is removed the lock rod;

Fig. 2 is the diagrammatic sketch of bowing that vehicle is removed the lock rod;

Fig. 3 is the fundamental diagram that vehicle is removed the lock rod.

Five, the specific embodiment

The utility model is further described below in conjunction with the drawings and the specific embodiments:

In Fig. 1 and Fig. 2, vehicle is removed the lock rod and is made up of caput 1 and excellent body 2, and the length of caput 1 is 2-6 centimetre, and the best is 4 centimetres; Caput 1 is 90 °-120 ° with the angle of excellent body 2, and the best is 105 °.Caput 1 and excellent body 2 can be distinguished weld together after the blanking, also can forge the folding that bends with a reinforcing bar heating and form.The afterbody of rod body 2 has been made hook solid, and crotch can be easy to carry not on safety strap.Also can bore a chain reaction hole, or connect the suspension ring as key chain at the afterbody of excellent body 2, can wire rope handling and chain in aperture or the suspension ring, be suspended on the safety strap.

In Fig. 3, when needs glancing impact left-hand revolution braking handwheel 3, drive chain drum 5 rotations, thereby, just vehicle is held tightly with the brake shoe that brake lever 7 links to each other with drag chain 6 and brake lever 7 tensions by brake axle 4, realized braking.The effect of ratchet 9 and ratchet 10 is to prevent brake axle 4 and chain drum 5 reversings, to keep braking mode.When the needs brake off, vehicle is removed the lock rod to be placed on the pedal 8 below the ratchet 9, make the tip of caput 1 prop up the afterbody of ratchet 9, the tail down one of excellent body 2 is pressed, ratchet 9 is deviate from from the teeth groove of ratchet 10, so ratchet 10 and brake axle 4 revolutions, drag chain 6 and lever connection 7 loosen, brake shoe unclamps wheel, and brake off.

Claims

1. a vehicle is removed the lock rod, it is characterized in that: it is made up of caput (1) and excellent body (2), and it is one that caput (1) and excellent body (2) link, and the length of caput (1) is 2-6 centimetre, and caput (1) is 90 °-120 ° with the angle of excellent body (2).

2. remove the lock rod according to the said vehicle of claim 1, it is characterized in that: the length of said caput (1) is 4 centimetres, and the length of excellent body (2) is 23 centimetres, and caput (1) is 105 ° with the angle of excellent body (2).

3. remove the lock rod according to claim 1 or 2 said vehicles, it is characterized in that: the end of said excellent body (2) is made hook solid.

4. remove the lock rod according to claim 1 or 2 said vehicles, it is characterized in that: the end of said excellent body (2) is shaped on chain hole or suspension ring.