CN203593007U - Train emergency braking switch - Google Patents

Abstract

The utility model discloses a train emergency braking switch which comprises a base. A transverse hole is formed in the base. An ejector rod penetrates through the transverse hole and presses an ejector rod spring matched with the ejector rod in an elastic mode into the transverse hole, a sliding groove is also formed in the base, a handle bracket is arranged to be matched with the sliding groove in a sliding mode, the step surface arranged in the middle of the ejector rod is movably matched with a clamping opening formed in the handle bracket in a buckling mode, a reset spring is arranged on the handle bracket, a protective cover is connected with the base and limits the handle bracket into the sliding groove to be moved when abutting against the reset spring, one end of the ejector rod is matched with an electric key of a quick-action switch arranged on one side of the base, the other side of the base is provided with a shifting fork, the first opening of the shifting fork is matched with a swing key on the ejector rod, the second opening of the shifting fork is matched with a swing head of a reset spring arranged on the base, and the reset rod is rotated by a key and then the shifting fork and the ejector rod are driven to move simultaneously. According to the train emergency braking switch, pipe connection between the train emergency braking switch and an emergency braking valve is eliminated, and train stop caused by leakage of connecting pipelines is avoided; the operating mechanism of the train emergency braking switch is scientific and reasonable in design, simple and compact, the emergency braking force operating force and reset torque are small, and the train emergency braking switch is easy to operate.

Description

Train emergency braking is operated a switch

Technical field

The invention belongs to railway transit passenger car brake unit technical field, especially refer to that the emergency braking using in a kind of railway transit passenger car brake system operates a switch.

Background technology

Trolley coach is in normal course of operation, and in guest room, occasional occurs that some emergency situations need to stop, but in a lot of situation, driver cannot know, therefore cannot stop, the emergency situation therefore passenger being occurred can not be processed in time, has endless trouble.

Existing emergency braking is operated a switch as Pneumatic-control type, be connected with emergency brake valve by pipeline, when passenger is left behind emergency braking while operating a switch, trigger emergency braking valve events by train tube pressure air discharged to atmosphere, permutation car emergency braking directly only stops, emergency brake valve is with electric contact, and in the time implementing emergency braking, emergency brake valve can produce electric signal, makes to be located at the warning indicator lamp flicker at stopping sliding door place outside car body.

The shortcoming that Pneumatic-control type emergency braking is operated a switch: by passenger or the service on buses or trains people direct control emergency braking enforcement emergency braking of operating a switch, implementing to send out alerting signal by emergency brake valve after emergency braking, passenger can not take into account and under train operation circuit road conditions and vehicle condition, carries out emergency braking, there is larger parking potential safety hazard, when serious, parking accident can occur.Operating mechanism is loose, and Emergency Negative Thrust operating effort and reset torque are larger, not easy to operate.

In view of the foregoing, need a kind of trolley coach to operate a switch with emergency braking, can be in case of emergency operated a switch by passenger or the crew member emergency braking of leaving behind, operate a switch and send out alerting signal to driver by emergency braking, in 3 seconds, whether stopped according to road conditions and vehicle condition processing by driver, if driver does not process automatic braking of train parking after 3 seconds.To make rapid, safe the stopping of permutation car.

Summary of the invention

The object of this invention is to provide a kind ofly in the time that generation emergency situation need to stop, the train emergency braking that passenger or crew member can autonomous operations is operated a switch,

The technical solution used in the present invention is as follows:

Provide a kind of train emergency braking to operate a switch, comprise a base, on described base, be provided with a cross-drilled hole, there is a push rod through described cross-drilled hole and will be fitted in described cross-drilled hole with the push rod spring of this push rod resilient engagement, on described base, be also provided with a chute, one handle bracket and described chute bearing fit are set, the bayonet socket arranging on the step surface that described push rod middle part arranges and described handle bracket moves snap fit, on described handle bracket, be provided with retracing spring, when protecting cover connects described base and props up described retracing spring, described handle bracket is limited in described chute and is moved, one end of described push rod coordinates with the telegraph key of the quick action switch that described base one side arranges, described base opposite side is provided with a shift fork, the first opening of described shift fork coordinates with the pendulum key on described push rod, its second opening coordinates with the yaw of the reset lever arranging on described base, by key turn reset lever and then drive described shift fork and push rod to move simultaneously.

In the time that generation emergency situation need to stop, passenger or crew member by the handgrip on handle bracket along the chute on described base toward drop-down, when handle bracket left side departs from after ejector pin terrace, push rod is past moving right under the effect of push rod spring elastic force, in push rod slips into the bayonet socket of handle bracket, handle bracket is locked in to emergency braking condition position, push rod right-hand member triggers the conducting of quick action switch telegraph key simultaneously, to driver's cab output alarm signal, in 3 seconds, process and whether stop by driver, if driver does not process automatic braking of train parking after 3 seconds, to make permutation car rapid, stopping of safety.After emergency situation is removed, available four jiaos of lock keys are enclosed within cw in reset lever and pull approximately 30 degree, reset lever drives shift fork to rotate counterclockwise, shift fork drives push rod toward moving left, when ejector pin terrace exits after handle bracket bayonet socket, handle bracket moves up under the effect of retracing spring elastic force, block handle bracket U-lag bottom by push rod spacing, handle bracket left side props up ejector pin terrace, push rod right-hand member leaves quick action switch telegraph key simultaneously, quick action switch resets and removes alerting signal, and after resetting, train can continue normally to travel.

Compared with prior art, the invention has the beneficial effects as follows:

Cancel with the pipeline of emergency brake valve and being connected, avoided causing parking because connecting line leaks, and easy to installation and maintenance.

Human engineering handgrip, handgrip inner side and top adopt the design of finger groove concaved circular cambered surface, novel and beautiful appearance, and operating handle is comfortable.

Operating mechanism design science rationally, simply compact, Emergency Negative Thrust operating effort and reset torque are less, easy operating.

Whether, after the emergency braking of leaving behind is operated a switch, emergency braking is operated a switch and can be sent out alerting signal to driver, stopped, if driver does not process automatic braking of train parking after 3 seconds in 3 seconds by driver according to road conditions and vehicle condition processing.To make rapid, safe the stopping of permutation car.

Accompanying drawing explanation

Fig. 1 is the planimetric position constructional drawing of an embodiment of the present invention.

Fig. 2 fills handled structural representation on Fig. 1.

Fig. 3 is another planimetric position constructional drawing corresponding with Fig. 1.

Fig. 4 is the cut-away section constructional drawing of Fig. 1

Description of reference numerals

1, base; 2, reset lever; 3, shift fork; 4, push rod; 5, push rod spring; 6, handle bracket; 7, hex bolt; 8, quick action switch; 9, insulcrete; 10, retracing spring; 11, protecting cover; 12, handgrip; 13, straight pin; 14, interior hexagonal holding screw; 15, hexagon socket countersunk flat cap head screw; 16, hexagonal nut; 17, self-locking packing ring; 18, flat gasket; 19, especially big packing ring; 20, safety washer; 21, hex bolt; 22, socket head cap screw; 23, safety washer; 101, cross-drilled hole; 102, chute; 201, reset lever yaw; 401, push rod pendulum key

The specific embodiment

Below in conjunction with accompanying drawing explanation embodiments of the invention, but should not be limited to following examples:

Provide a kind of train emergency braking to operate a switch, comprise a base 1, on described base 1, be provided with a cross-drilled hole 101, there is a push rod 4 through described cross-drilled hole 101 and will be fitted in described cross-drilled hole 101 with the push rod spring 5 of these push rod 4 resilient engagement, on described base 1, be also provided with a chute 102, one handle bracket 6 and described chute 102 bearing fits is set, the bayonet socket arranging on the step surface 401 that described push rod 4 middle parts arrange and described handle bracket 6 moves snap fit, on described handle bracket 6, be provided with retracing spring 10, protecting cover 11 is limited to the interior movement of described chute 102 by described handle bracket 6 when connecting described base 6 and prop up described retracing spring 10, one end of described push rod 4 coordinates with the telegraph key of the quick action switch 8 that described base 1 one sides arrange, described base 1 opposite side is provided with a shift fork 3, the first opening of described shift fork 3 coordinates with the pendulum key 401 on described push rod 4, its second opening coordinates with the yaw 201 of reset lever 2 arranging on described base 1, by key turn reset lever 2 and then drive described shift fork 3 and push rod 4 to move simultaneously.

With further reference to accompanying drawing, hexagonal nut 16, self-locking packing ring 17, flat gasket 18, especially big packing ring 19, safety washer 20 and the hex bolt 21 for ground connection are housed on described base 1 right side, and described handle bracket 6 lower ends are provided with two retracing spring holes for accommodating retracing spring 10; Protecting cover 11 is enclosed in handle bracket 6 in base 1 chute when propping up retracing spring 10, and by hexagon socket countersunk flat cap head screw 15, protecting cover 11 is fixed on base 1; On described handle bracket 6, have by socket head cap screw 22 and the fixing handgrip 12 of safety washer 23; Base 1 left side is provided with reset lever 2, on reset lever 2 lower end bases 1, interior hexagonal holding screw 14 is housed, and by straight pin 13, shift fork 3 is set with on base 1; Quick action switch 8 is fixed on base right side by hex bolt 7 after being encased inside insulcrete 9.

In the time that generation emergency situation need to stop, passenger or crew member operate a switch handgrip 12 toward drop-down by emergency braking, when handle bracket 6 left sides depart from after push rod 4 step surfaces, push rod 4 slip of turning right under push rod spring 5 elastic force effects, in push rod 4 slips into the bayonet socket of handle bracket 6, handle bracket 6 and handgrip 12 are locked in to emergency braking condition position, push rod 4 right side touching quick action switch 8 trigger mechanism actions simultaneously, quick action switch 8 is to driver's cab output alarm signal, in 3 seconds, process and whether stop by driver, if driver does not process automatic braking of train parking after 3 seconds, to make permutation car rapid, stopping of safety.After emergency situation is removed, available four jiaos of lock keys are enclosed within reset lever 2 cws and pull approximately 30 degree, reset lever 2 drives shift fork 3 to rotate counterclockwise, shift fork 3 drives push rod 4 toward moving left, when push rod 4 step surfaces exit after handle bracket 6 end faces, handle bracket 6 moves up under retracing spring 10 elastic force effects, block handle bracket 6U shape trench bottom by push rod 4 spacing, handle bracket 6 left sides prop up push rod 4 step surfaces, quick action switch 8 trigger mechanisms are left in push rod 4 right sides simultaneously, quick action switch 8 resets and removes alerting signal, and after resetting, train can continue normally to travel.

The inner side of described handgrip 12 and top adopt the design of finger groove concaved circular cambered surface, novel and beautiful appearance, and operating handle is comfortable.

Although shown detailed embodiment of the present invention above, those skilled in the art, under prerequisite of the present invention, still can carry out part modifications and changes; The content of mentioning in description above and accompanying drawing, only as illustrative case, is not limitation of the present invention, and the train emergency braking with above-mentioned technical characterictic is operated a switch, and all falls into this patent protection domain.

Claims (5)

1. a train emergency braking is operated a switch, comprise a base, it is characterized in that: on described base, be provided with a cross-drilled hole, there is a push rod through described cross-drilled hole and will be fitted in described cross-drilled hole with the push rod spring of this push rod resilient engagement, on described base, be also provided with a chute, one handle bracket and described chute bearing fit are set, the bayonet socket arranging on the step surface that described push rod middle part arranges and described handle bracket moves snap fit, on described handle bracket, be provided with retracing spring, when protecting cover connects described base and props up described retracing spring, described handle bracket is limited in described chute and is moved, one end of described push rod coordinates with the telegraph key of the quick action switch that described base one side arranges, described base opposite side is provided with a shift fork, the first opening of described shift fork coordinates with the pendulum key on described push rod, its second opening coordinates with the yaw of the reset lever arranging on described base, by key turn reset lever and then drive described shift fork and push rod to move simultaneously.

2. train emergency braking as claimed in claim 1 is operated a switch, and it is characterized in that: hexagonal nut, self-locking packing ring, flat gasket, especially big packing ring, safety washer and the hex bolt for ground connection are housed on described base right side.

3. train emergency braking as claimed in claim 1 is operated a switch, and it is characterized in that: described handle bracket lower end is provided with two retracing spring holes.

4. train emergency braking as claimed in claim 1 is operated a switch, and it is characterized in that: on described handle bracket, have by socket head cap screw and the fixing handgrip of safety washer.

5. train emergency braking as claimed in claim 1 is operated a switch, and it is characterized in that: described quick action switch is fixed on described base right side by hex bolt after being encased inside insulcrete.

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