CN208306346U - The full-automatic emergency escape door of large and medium bus - Google Patents

Abstract

The utility model discloses a kind of full-automatic emergency escape doors of large and medium bus, doorframe including being set to vehicle body side, the base compartment floor of doorframe is concordant, it is respectively articulated with installation at the top and bottom of doorframe and rises window and pedal, in doorframe and rises between window and pedal equipped with elastic opening structure and automatic retracting mechanism；Car is connected in use, rising window and being usually brought together into doorframe with pedal with vehicle body；In emergency escape, rises window and pedal automatically springs open to form escape route；After escape, rises window and pedal automatically retracts.The utility model has many advantages, such as that manufacturing cost is low, easy to open, the used time is extremely short, it is rapid and practical reliable to withdraw.

Description

The full-automatic emergency escape door of large and medium bus

Technical field

The utility model relates to a kind of escape devices being installed on vehicle, for urgent in case of vehicle emergencies Evacuate personnel in compartment, and in particular to one kind is suitable for the full-automatic emergency escape door of large and medium bus, especially bus.

Background technique

In recent years, mass transit vehicle is hurt because a lot of heavy losses of property or personnel crowd extremely group have occurred for a variety of causes Accident causes the serious consequence that can not be retrieved.How the safety of public transportation vehicle is improved, so as to the energy when danger occurs Enough occupant is allowed to escape danger rapidly, avoids or reduces injures and deaths to the maximum extent, be it is that current public transportation vehicle is faced, need to compel Cut the significant problem of solution.Large and medium bus automobile body is generally complete to be fixedly mounted structure, only two, three it is upper for passenger, Emergency is occurring for the car door got off or when accident, existing large and medium bus outlet by electricity, gas and opening time compared with The factors such as long restrict, and can not open in time in a short time, and alarmed and crowded passenger is difficult the vehicle that speeds away, and often result in big The dead group's wound of the group of amount personnel, causes immeasurable losses.And the tempered glass of glass for vehicle window, it is being slapped even if also being obtained with safety hammer Applying very big strength under the premise of holding percussion skill can just smash.When the traffic accident or when fire of happening suddenly, in flurried passenger, crowded Environment in find safety hammer and break glass for vehicle window into pieces just with it and become more difficult, the reduction for the efficiency that causes to escape is missed and is escaped Raw prime time.

For this purpose, applicant is preceding designing a kind of large and medium bus span formula emergency escape Men Bingxiang State Intellectual Property Office Application for a patent for invention, number of patent application 2017103390760, including doorframe are had submitted, window and pedal are risen, doorframe is set to vehicle body The bottom of side, doorframe is concordant with the floor in car, and pedal is articulated with the bottom of doorframe, rises the top that window is articulated with doorframe Portion；Rise window when car normal use and pedal is brought together into doorframe, a part as bus body；In emergency escape, Pedal is downwardly turned over along hinge, is risen window and is risen, forms escape route, has that structure is simple, easy to open, the used time is extremely short, real With it is reliable the features such as, so that occupant is speeded away compartment to the greatest extent, out of danger, the people of effective guarantee passenger Body and property safety.

Applicant focus in product research and development process collect each side's opinion and feedback, persistently to the design of product into Row improvement, to up to more technical problems is solved, reach more preferably technical effect, the application is exactly to above-mentioned in preceding application The further improvement of technical solution.

Summary of the invention

Goal of the invention: the automatization level in order to improve existing emergency escape door, the present invention provide a kind of large and medium bus Full-automatic emergency escape door.

Technical solution: in order to solve the above technical problems, the full-automatic emergency escape door of large and medium bus provided by the invention, packet The doorframe set on vehicle body side is included, doorframe bottom is concordant with floor compartment, is respectively articulated with and installs at the top and bottom of doorframe Rise window and pedal；Rise window and pedal and be connected with vehicle body being usually brought together into doorframe, is automatically springed open in emergency escape Form escape route；It is equipped with elastic opening structure between doorframe and rising window and pedal and automatic retracting mechanism, feature exist In:

The automatic retracting mechanism includes being mounted on the Pneumatic extension bar risen between window and doorframe, and be mounted on pedal Torsion mechanism between doorframe, the torsion mechanism and pedal pivot driving coupling；The elasticity opener includes installation Rising the pneumatic spring between window and doorframe, and the torque spring being mounted in pedal pivot.

Specifically, gear is fixedly mounted in the end of the pivot, and the gear is engaged with the train of reduction gears of body bottom, The train of reduction gears couples with motor drive, further includes clutch, and the clutch is for changing motor and reducing gear The meshing state of wheel group.The clutch includes the hinged bracket of cylinder, and when cylinder movement, bracket drives the output of motor Gear movement is to the position being meshed with train of reduction gears.Motor, train of reduction gears provide enough as torsion mechanism for pivot Torque, and then pedal is recovered in doorframe along pivoting.

Specifically, the pneumatic bomb reed pipe is to be connected to a pair of of the air spring support rod for rising window and doorframe two sides, when When rising window and pedal are brought together into doorframe, the air spring support rod is contained in doorframe and rises in the groove between window, Have in the doorframe for locking the lockable mechanism for rising window and/or pedal.In vehicle normal operating condition, emergency escape door It is respectively formed complete plane, neither the appearance globality of influence body exterior and traveling windage with vehicle body inside and outside wall, is also not take up Interior space.

Specifically, the lockable mechanism can select electromagnetic door lock.

Specifically, the lockable mechanism can select the line traffic control door lock that is connected with thread drawing mechanism, and the thread drawing mechanism has Circular turntable, one end of bracing wire is fixed on the circumference of the turntable, and the other end of bracing wire is fixedly connected with door lock.

Specifically, it is in rotational direction arranged symmetrically two tie points on the turntable, is separately connected the first bracing wire and the Two bracing wires, the first bracing wire connect the first door lock, and the second bracing wire connects the second door lock, and first door lock and the second door lock are symmetrically It is arranged in the two sides of doorframe；It is additionally provided with third tie point on the turntable, the third tie point connects third bracing wire, and described the The interior hand control valve of three bracing wires connection.

It specifically, further include cylinder, one end of cylinder and turntable are hinged, and the other end of cylinder is hingedly on the rack；It is described The pneumatic circuit of cylinder is equipped with solenoid valve, and the control switch of the solenoid valve is arranged in driver's operating area.The electromagnetism In the control switch access warning circuit of valve.Since driver understands vehicle performance the most, by the instruction for disposing emergency case Practice, can skilled operation emergency escape door, utmostly avoid judging by accident and improve timeliness.Meanwhile linkage mechanism disk, air pump, Door pump solenoid valve is mounted on emergency escape door control bottom plate, and emergency exits hand control valve, alarm voice loudspeaker are mounted on control cabinet Side, gas spring, bracing wire, travel switch, door lock are mounted in escape door frame, and alarm lamp is installed on rear side of roof, double sudden strain of a muscle polices Show lamp line on the double flashing lights of vehicle, danger button, reset button, warning lamp are installed on the left of driver on control panel.Hand Control the proper height that valve installs side door frame column in the car.

The intensity after may insure locking is locked simultaneously using both sides, for common big forms car, by glass window portion It is allocated as to rise window, as pedal, outside is identical as the spraying style of vehicle body for vehicle body coaming plate part, closes in this way in emergency escape door After holding together and vehicle body appearance can keep good harmony.It is sliding by ball in pedal while in order to slow down the gradient of pedal Rail installs one section of expansion plate.Emergency escape door is manufactured using aluminium alloy plate, and anti-skid chequer is set in pedal surface.

It specifically, further include cylinder, one end of cylinder and turntable are hinged, and the other end of cylinder is hingedly on the rack.Cylinder Execution it is fastest, in the emergency escape occasion seized every minute and second, when driving turntable unlatching to be conducive to shorten reaction using cylinder Between.

Rotating handle is also equipped on disk, bracing wire one end is fixed on disk, and the other end is connected and fixed door lock, cylinder Push rod is articulated on disk, is connected between door pump solenoid valve and air pump by tracheae, and door pumps solenoid valve and hand control valve by linkage mechanism Connection, door pump solenoid valve are connect with tight button, reset button by low-voltage line, emergency exits hand control valve safety head, travel switch, alarm Speech horn, alarm lamp and warning lamp are connected by low-voltage line.

Electrical control can be used or manual mode pulls bracing wire, gas spring opens escape automatically after bracing wire releasing lockable mechanism Door, while audio alert built in the double sudden strain of a muscle alarm lamps of vehicle, vehicle overhead alarm lamp, compartment connects circuit and issues alarm, whole mistakes The journey used time was less than one second.Driver controls danger button and cannot be only used for opening emergency exits, but also provides shutdown function, presses Automatic retracting mechanism successively withdraws pedal and rises window after shutdown key.

When installation, doorframe is set to vehicle body side, and the bottom of doorframe is concordant with the floor in car, and the pedal is articulated with door The bottom of frame, the top for rising window and being articulated with doorframe；Rise when car normal use window and pedal be brought together into doorframe with Vehicle body is connected；In emergency escape, pedal is downwardly turned over along hinge, is risen window and is risen, forms escape route；The doorframe Air spring support rod is connected between column and rising window, the spring supporting bar is used to store the elastic force for flicking and rising window；

The first automatic retracting mechanism is installed between rising window and the doorframe, second is installed between the pedal and doorframe certainly Dynamic retraction mechanism, first automatic retracting mechanism is the Pneumatic extension bar for being connected to doorframe column between rising window, described Second retraction mechanism and pedal pivot driving coupling, install torque spring on the pivot of pedal, for discharging in locking mechanism It is flicked after pedal.

The utility model has the advantages that the present invention includes the doorframe set on vehicle body side, the bottom of doorframe is concordant with the floor in car, It is respectively articulated with installation at the top and bottom of doorframe and rises window and pedal, rises window and pedal is usually brought together into doorframe and connects with vehicle body Integrally；In emergency escape, rises window and pedal automatically springs open to form escape route；In doorframe and rise between window and pedal Equipped with elastic opening structure and automatic retracting mechanism, have following significant progress:

1. using automatic retracting mechanism, after emergency training and disposition emergency case, quickly and reliably it can withdraw and supply Next time uses, and facilitates vehicle to sail out of road surface in time, avoids the jams.

2. being easy to appear when emergency occurs for vehicle panic and crowded, the get-off door of interior pendulum-type is by flurried passenger Extruding can not more open, emergency escape door of the invention outwardly opens, and emergency opening process is without hindrance smooth.Emergency escape door It fully opens up and down, passenger directly goes on ground along pedal, and perambulator, wheelchair etc. can also evacuate to ground rapidly along pedal Face, handicapped person can also be assisted in by other passengers and be withdrawn, and compared existing escape window, improved significantly and withdraw evacuation Efficiency.

3. opening speed is fast, rises window and pedal is installed by hinge, the deposit elastic force of air spring support rod is slightly larger than The gravity for rising window need to be supported, the deposit elastic force of torque spring is used for ejecting pedal, after lockable mechanism release, is quickly flicking The guarantee pedal for rising window can also be opened in time.

4. control it is convenient reliable, the present invention can in the first time that emergency occurs by vehicle driver at the first time Emergency exits are quickly opened, the prime time of escape has been won for passenger, even if vehicle circuit and being destroyed, can also be used Knob shifting block controls cylinder and bracing wire is pulled to open the door.It, can also be with pulling manually under vehicle gas circuit also hand to the extreme case destroyed Hand rotates cable quadrant and opens the door.Bracing wire door lock is completely independent with pneumatic spring and vehicle other systems, has a high reliability, and three Set emergency door opener is there are enough safe clearances, while guaranteeing that emergency operation is reliable in time, usually also can be maximum Prevent to limit maloperation of the interior member to emergency set

5. escape door combines together after closing in inside and outside uniform vehicle body, air spring support rod, lockable mechanism and hinge cloth It sets in doorframe, rise between window and pedal, control cabinet is directly arranged at the top of doorframe, without occupying exceptional space inside and outside vehicle body.

6. not influencing the appearance and structure of existing vehicle, military service vehicle can also be installed additional, car is held by chassis It carries, vehicle body and roof are connected by structural column, directly escaped in the installing port of vehicle body side enabling frame, that is, mountable emergency of the invention Raw door provides effective scheme for the upgrading of active service large and medium bus security performance.

Except it is above-described present invention solves the technical problem that, constitute technical solution technical characteristic and by these technologies Outside advantage brought by the technical characteristic of scheme.It to make the object, technical solutions and advantages of the present invention clearer, below will knot The attached drawing in the embodiment of the present invention is closed, to other skills for including in the other technologies problem of the invention that can solve, technical solution The advantages of art feature and these technical characteristics are brought does apparent, complete description, it is clear that described embodiment is this Invention a part of the embodiment, instead of all the embodiments.Embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings Component can arrange and design with a variety of different configurations.Therefore, the implementation of the invention to providing in the accompanying drawings below The detailed description of example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention Example.Based on the embodiments of the present invention, those of ordinary skill in the art are on its basis without creative work institute obtained There are other embodiments, shall fall within the protection scope of the present invention.

Detailed description of the invention

Fig. 1 is the cross-sectional view of the full-automatic emergency escape door of the embodiment of the present invention；

Fig. 2 is the open state schematic diagram of Fig. 1；

Fig. 3 is the structural schematic diagram of escape controlling device for doors in the embodiment of the present invention；

Fig. 4 is warning circuit figure；

Fig. 5 is the entrucking effect picture of the full-automatic emergency escape door of the present embodiment；

Fig. 6 is the opening state schematic diagram of Fig. 5；

Fig. 7 is the meshing state schematic diagram of pedal retraction mechanism torsion mechanism；

Fig. 8 is the clutch state schematic diagram of pedal retraction mechanism torsion mechanism；

In figure: doorframe 1 rises window 2, pedal 3, air spring support rod 4, lockable mechanism 5, the first door lock 5-1, and second Lock 5-2, travel switch 6, the first bracing wire 7-1, the second bracing wire 7-1, turntable 8, bearing 9, hand control valve 10, cylinder 11, door pumps electromagnetism Valve 12, valve cover switch 13, trigger switch 14, the double sudden strain of a muscle alarm lamps 15 of vehicle, vehicle overhead alarm lamp 16, the outer alarming horn 17 of vehicle, Built-in phonetic alarm 18, danger button 19, control unit 20, power supply 21, Pneumatic extension bar 22, torque spring 23, gear 24, Idle pulley 25, motor output wheel 26, motor rack 27, cylinder 28, motor rack shaft 29.

Specific embodiment

Embodiment one

The full-automatic emergency escape door of the large and medium bus of the present embodiment is as depicted in figs. 1 and 2, including doorframe 1, rises window 2 With pedal 3.Doorframe 1 is set to vehicle body side, and bottom is concordant with the floor in car.Rise the top that window 2 is articulated with doorframe 1, Pedal 3 is articulated with the bottom of doorframe 1.

As shown in Figure 1 and Figure 5, in car normal use, emergency escape door is closed, and rises window 2 and pedal 3 is brought together into door A part in frame 1, as bus body.Rise window 2 and pedal 3 with have outer, in closure, outer is used for envelope air The structures such as spring supporting bar 4, and pedal 3 is pushed down in the outer for rising window 2, forms interlocking, as long as such lockable mechanism lock locks Locking can be realized to pedal 3 simultaneously by rising window 2.For relatively reliable locking effect, can be respectively set in doorframe two sides A pair of of line traffic control door lock, locking rises the two sides of window and pedal respectively.

As shown in Figure 2 and Figure 6, in emergency escape, the lock of lockable mechanism 5 discharges, the elastic force of air spring support rod 4 It starts and rises window 2, put down pedal 3, the expansion plate inside pedal 3 stretches out therewith, forms the channel of escape.Lockable mechanism 5 is purchased Existing bus man side door lock has the hook that can be rotated along axis, is adopted hook locking using ratchet mechanism in locking When pulling unlocking with thread drawing mechanism, ratchet discharges hook.Travel switch 6 is also installed in doorframe, accesses warning circuit, for The safety for opening the prompt of emergency escape door alarm, and the loosening of emergency escape door once occur in normal use or not fastening Hidden danger can also remind in time.

As shown in figure 3, lockable mechanism is connected with the thread drawing mechanism risen at the top of window in control cabinet is mounted on, thread drawing mechanism With circular turntable 8, the center of turntable is mounted on the rack by bearing 9.Two are in rotational direction symmetrically equipped on turntable 8 A tie point is separately connected the first bracing wire 7-1 and the second bracing wire 7-2, first bracing wire 7-1 connection the first door lock 5-1, the second bracing wire 7-2 connection the second door lock 5-2, and the first door lock 5-1 and the second door lock 5-2 are symmetrically arranged at the two sides of doorframe, are concatenated A pair of of door lock, locking rises window and pedal respectively.Cylinder 11 is also hinged on turntable 8, the other end of cylinder 11 is hinged on machine On frame, the cylinder specification of the present embodiment chooses AKS MAL25*25.Installation door pumps solenoid valve 12, this reality in the gas circuit of cylinder 11 It applies example and selects five mouthfuls of two solenoid valves of 4v220-08.Turntable also passes through third bracing wire connection hand control valve 10, and hand control valve 10 is installation Emergency draw-ring type door-opening mechanism on doorframe column, and its exterior is equipped with safety heads.

In use, control interface includes that emergency exits open button and close button, emergency exits are opened button electrical control and are opened Latch mechanism, the unlocking mechanism include turntable, bracing wire and cylinder, emergency exits close button electrical control automatic retracting mechanism.

Two buttons are arranged in driver's operating area.Emergency escape door danger button is controlled by driver, makes a pump electricity Magnet valve is powered, and connects gas circuit triggering air pump and pushes, and can be executed by driver's control automatic retracting mechanism and close the dynamic of emergency exits Make.

Electrical control and manual component assign two kinds of operation modes of lockable mechanism:

1. cylinder push-rod, which stretches out, pushes turntable, the bracing wire that turntable stretches connection lockable mechanism is unlocked；

And the stretching of cylinder push-rod pumps solenoid valves by door and controls the triggering of emergency escape door danger button, door by driver It pumps solenoid valves and connects gas circuit triggering cylinder push-rod stretching；

2. opening safety head, pull-up hand hole valve pull ring, third bracing wire drives turntable to stretch first, the of connection lockable mechanism Two bracing wires are unlocked.

As shown in figure 4, the travel switch 6 being mounted in doorframe, the triggering being mounted on rotation twist switch safety head are opened Pass 14 is accessed with the valve cover switch 13 on safety head and warning circuit, the alarming device and warning device outside control car, packet The double sudden strain of a muscle alarm lamps 15, vehicle overhead alarm lamp 16 of vehicle are included, phonetic alarm 18 built in the outer alarming horn 17 of vehicle and compartment is driven The hand control valve danger button 19 of the person of sailing position pumps the control of solenoid valve 12 by control unit 20 and door and connects.

The entrucking effect of full-automatic emergency escape door is marked time the left side of car as shown in figure 5, being mounted on level-one, and doorframe 1 is same The separator bar of Shi Zuowei adjacent vehicle window rises the cut-off rule of window 2 and pedal 3, is located at the cut-off rule of Bus window covering same On straight line, after car installs emergency exits additional, the influence to its appearance globality almost combines together with regard to very little.Facilitate coating vehicle body The hinge of advertisement, pedal 3 is concordant with floor in the car.

Its opening state turns over as shown in fig. 6, rising window 2 along the top of doorframe 1, and pedal 3 turns under the bottom of doorframe 1, Expansion plate stretches out, and forms escape route, and passenger can evacuate to rapidly on the ground outside vehicle along pedal 3.

After escape, such as interior emergency is released, and driver presses shutdown key, and automatic retracting mechanism successively withdraws and steps on Plate and rising window, facilitate vehicle to withdraw road surface in time, avoid the jams.The weight of pedal reaches 30kg or so, and pivot will The acute angle on about 30 ° or so of pedal and ground is recovered to 90 ° concordant with vehicle body, needs enough torques, therefore uses 300W direct current Decelerating motor drives, and motor has rotation-clogging protection, and travel switch, which can also be fed back, after pedal is withdrawn steps on plate in-position signal, full For foot using under the premise of function, the above equipment is minimum in bus bottom occupied space, will not influence the passage capacity of bus.

As shown in fig. 7, electrical power rotation, cylinder 28 stretches out when needing at closing time, motor rack 27 is driven to turn along motor rack Axis 29 rotates, and motor output wheel 26 is enabled to engage with idle pulley 25, and then drives the pivot of pedal to turn with 25 meshed gears 24 of idle pulley It is dynamic, pedal is closed, the DC speed-reducing of used 300w can provide enough torques, when pedal is to being recovered to doorframe Afterwards, travel switch will control motor stalling, while door lock locks pedal, while motor is protected with rotation-clogging protection multiple security The reliable closure of pedal is demonstrate,proved.

As shown in figure 8, cylinder 28 retracts after pedal closure, motor rack 27 is driven to swing along motor rack shaft 29, motor is defeated Wheel 26 is in clear position out, and motor output wheel 26 is disengaged with idle pulley 25 at this time, 24 band of gear when needing to open pedal Dynamic idle pulley 25 dallies, it is ensured that fast and reliable opening is able to when escape.

In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition State the concrete meaning of term in the present invention.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage Solution is indication or suggestion relative importance.

The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field For technical staff, the invention may be variously modified and varied, in the range of the principle of the present invention and technical idea, to this A little embodiments carry out a variety of variations, modifications, equivalent substitutions and improvements etc., should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of full-automatic emergency escape door of large and medium bus, the doorframe including being set to vehicle body side, doorframe bottom and compartment Plate is concordant, and installation is respectively articulated at the top and bottom of doorframe and rises window and pedal；Rise window and pedal is usually being brought together into door It is connected in frame with vehicle body, automatically springs open to form escape route in emergency escape；In doorframe and rise between window and pedal Equipped with elastic opener and automatic retracting mechanism, it is characterised in that:

The automatic retracting mechanism includes being mounted on the Pneumatic extension bar risen between window and doorframe, and be mounted on pedal and door Torsion mechanism between frame, the torsion mechanism and pedal pivot driving coupling；The elasticity opener includes being mounted on Rise the pneumatic bomb reed pipe between window and doorframe, and the torque spring being mounted in pedal pivot.

2. the full-automatic emergency escape door of large and medium bus according to claim 1, it is characterised in that: the end of the pivot Gear is fixedly mounted, the gear is engaged with the train of reduction gears of body bottom, and the train of reduction gears couples with motor drive, Further include clutch, the clutch for changing motor and train of reduction gears meshing state；The clutch packet Cylinder and articulated stand are included, when cylinder movement, articulated stand drives the output gear of motor to move to and train of reduction gears phase The position of engagement.

3. the full-automatic emergency escape door of large and medium bus according to claim 2, it is characterised in that: the pneumatic bomb reed pipe It is to be connected to a pair of of the air spring support rod for rising window and doorframe two sides, when rising window and pedal is brought together into doorframe, institute It states air spring support rod to be contained in doorframe and rise in the groove between window, has in the doorframe and rise window for locking And/or the lockable mechanism of pedal.

4. the full-automatic emergency escape door of large and medium bus according to claim 3, it is characterised in that: the lockable mechanism is Electromagnetic door lock.

5. the full-automatic emergency escape door of large and medium bus according to claim 3, it is characterised in that: the lockable mechanism is The line traffic control that is connected with thread drawing mechanism door lock, the thread drawing mechanism have circular turntable, fix bracing wire on the circumference of the turntable One end, the other end of bracing wire is fixedly connected with door lock.

6. the full-automatic emergency escape door of large and medium bus according to claim 5, it is characterised in that: edge turns on the turntable Dynamic direction is arranged symmetrically two tie points, is separately connected the first bracing wire and the second bracing wire, and the first bracing wire connects the first door lock, the Two bracing wires connect the second door lock, and first door lock and the second door lock are symmetrically arranged at the two sides of doorframe；On the turntable also Equipped with third tie point, the third tie point connects third bracing wire, the interior hand control valve of the third bracing wire connection.

7. the full-automatic emergency escape door of large and medium bus according to claim 6, it is characterised in that: further include cylinder, gas One end of cylinder and turntable are hinged, and the other end of cylinder is hingedly on the rack；The pneumatic circuit of the cylinder is equipped with solenoid valve, institute The control switch for stating solenoid valve is arranged in driver's operating area.

8. the full-automatic emergency escape door of large and medium bus according to claim 7, it is characterised in that: the control of the solenoid valve In system switch access warning circuit.