CN105863425B

CN105863425B - Self-opening preventing device for outward swinging door

Info

Publication number: CN105863425B
Application number: CN201610324685.4A
Authority: CN
Inventors: 佟钦智; 盛团结; 邢帅; 鞠金龙
Original assignee: Weihai Guangtai Airport Equipment Co Ltd
Current assignee: Weihai Guangtai Airport Equipment Co Ltd
Priority date: 2016-05-13
Filing date: 2016-05-13
Publication date: 2023-10-10
Anticipated expiration: 2036-05-13
Also published as: CN105863425A

Abstract

The invention discloses an outward swing door self-opening prevention device which is provided with a door body control device, a door body and a door upright post, and is characterized in that a bracket is provided with a self-opening prevention mechanism, the self-opening prevention mechanism comprises a bottom frame, a sliding plate, a push plate bracket, a push rod, a self-opening prevention cylinder, a supporting frame, a return spring and a locking nut, the lower end of the bottom frame is fixedly connected with the bracket, the upper end of the bottom frame is fixedly connected with the supporting frame, the upper end of the supporting frame is provided with the self-opening prevention cylinder, the side wall of the front end is provided with a slideway, one side of the supporting frame is provided with the return spring, the upper end and the lower end of the sliding plate are respectively in sliding connection with the slideway, the middle part of the sliding plate is provided with a limiting hole, one side of the sliding plate is fixedly connected with the lower end of the push plate bracket, one end of the return spring is fixedly connected with the push plate bracket, the end of the return spring is fixedly connected with the push plate bracket, and the end of the cylinder push rod of the self-opening prevention cylinder is fixedly connected with the push plate bracket.

Description

Self-opening preventing device for outward swinging door

Technical Field

The invention relates to the field of vehicle pneumatic door control systems, in particular to an external swing door self-opening prevention device for an airport ferry vehicle.

Background

Airport ferry is an indispensable device for airport passengers to board. In order to ensure passengers to get on and off the airport ferry to the greatest extent and avoid the passenger door from occupying the inner space of the airport ferry, most of the airport ferry currently adopts a double-out-swinging-door design. The double-outward-swinging passenger door is an air pressure or electric double-outward-swinging passenger door, and has a complicated structure because of the limited structure of the door and the requirement that the passenger door has an anti-clamping function in regulation (namely, passengers can automatically open when the door is closed, and the passengers are prevented from being clamped). The vehicle is easily affected by climate, air humidity and other environmental factors; in addition, passengers in the vehicle do not follow the riding requirements, and can easily lean against the passenger door under the condition of more passengers; finally, the passenger door pump is also a mechanical structure, is easily influenced by the factors such as self or incomplete maintenance and overhaul, and cannot guarantee absolute zero fault. Therefore, the ferry vehicle is influenced by a plurality of factors, and the phenomenon that the passenger door of the ferry vehicle is automatically opened during running occurs in most airports.

During the running of the ferry vehicle, the passenger leaning against the passenger door or in the vicinity of the passenger door, without any protective measures, once the door is opened, a serious safety threat is created, and passengers may fall off the vehicle to cause injury or even affect life safety. Automatic opening of the passenger door is obviously a serious safety hazard.

In order to thoroughly solve the hidden trouble, a traditional ferry vehicle door pump mechanism is studied, as shown in fig. 1, a door body 16 is connected with a door body control device through a door upright post 14 and a swing arm 15, and the door body control device comprises a rack 1, a contact switch 2, a cam 3, a gear 4, a bracket 5, a sensing cylinder 6, an executing cylinder 7, a control cable 8, an emergency valve 9, a door pump electromagnetic valve 10, a rack guide wheel 11, a cylinder push rod 13, an air channel 18 and the like. After the door stand passes through the bracket, the upper end of the door stand is connected with a gear 4 and a cam 3 in series, the end part of the extending rod of the actuating cylinder 7 is provided with a rack 1, one side of the rack is meshed with the gear 4 connected with the upper end of the door stand in series, and the other side of the rack is abutted against a rack guide wheel 11. The rack guide wheel 11 is connected in series on the support, a contact switch 2 is arranged at the top end of the support, and the contact switch 2 corresponds to the cam 3 so as to be beneficial to limiting the opening limit of the door body. The induction cylinder 6 is connected with the execution cylinder 7 through a gas circuit 18, and the induction cylinder 6 is connected with the door pump electromagnetic valve 10 through a control cable. The door pump electromagnetic valve is connected with an air source through the emergency valve 9, and when the actuating cylinder 7 moves to drive the gear 4 to rotate, the door upright 14 is driven to rotate, the swing arm 15 pushes the door body 16 to rotate by taking the door upright as the center, so that the door body is opened and closed. When the passenger door needs to be opened, the cylinder push rod 13 retracts to drive the rack 1 to retract, the rack rotates anticlockwise under the action of the gear 4, the passenger door is opened, and otherwise, the passenger door is closed. During the closing of the door body 16, if an obstacle is encountered, the air pressure difference across the piston of the actuating cylinder 7 increases, triggering the sensing cylinder 6, which feeds back to the door pump solenoid valve 10 via the control cable 8, thus opening the door. This structure is relatively complex and at the same time implements the anti-pinch function of the door. However, during the use of the vehicle, the vehicle is easily affected by the maintenance condition of the vehicle, the external climate conditions and other factors, the vehicle is easy to be misjudged, so that the door body is accidentally opened.

In order to thoroughly solve the problem, the traditional door pump is analyzed and various methods are provided, such as locking a door shaft, locking a cylinder, cutting off a control power supply and the like, are improved, the effect is not ideal, and no technical scheme is available for practically solving the substantial technical problem of automatic door opening.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides the outward swing door self-opening prevention device which is novel in structure, flexible to operate, strong in adaptability and strong in safety.

The technical scheme adopted for solving the technical problems is as follows:

the door body control device comprises a rack, a contact switch, a cam, a gear, a bracket, an induction cylinder, an execution cylinder, a control cable, an emergency valve, a door pump electromagnetic valve, a rack guide wheel, a swing arm, an air channel and a control system, and is characterized in that the bracket is provided with the self-opening prevention electromagnetic valve and the self-opening prevention mechanism; the self-starting prevention mechanism comprises a bottom frame, a sliding plate, a push plate bracket, a push rod, a self-starting prevention cylinder, a supporting frame, a limit bolt, a return spring and a lock nut, wherein the door pump electromagnetic valve, the induction cylinder, the execution cylinder, the contact switch and the self-starting prevention cylinder are controlled by a control system respectively; the lower end of the underframe the brackets are fixedly connected with each other, the upper end of the underframe is fixedly connected with the supporting frame; the supporting frame is fixed with a self-opening preventing cylinder, the side wall of the front end is provided with a slideway, one side is provided with a return spring; the upper end and the lower end of the sliding plate are respectively connected with the sliding way in a sliding way; two limiting holes are formed in the middle of the sliding plate; one side of the sliding plate is fixedly connected with the lower end of the push plate bracket; the cylinder push rod of the execution cylinder is connected in the limit hole of the sliding plate in a penetrating way; one end of the return spring is fixedly connected with the supporting frame, the other end is fixedly connected with the push plate bracket; the end part of the cylinder push rod of the self-opening prevention cylinder is fixedly connected with the push plate support, so that the movement of the tail end of the rack is limited by limiting the space of the slide plate, the self-opening of the door body caused by unknowing passengers is prevented, and the safety of the passengers is ensured.

The limiting hole of the sliding plate is formed by a large through hole and a small through hole which are communicated, and the diameter of the large through hole is larger than that of the rack so as to achieve the effect of avoiding damaging the rack; the diameter of the small through hole is smaller than that of the rack and larger than that of the cylinder push rod of the execution cylinder, so that after the door body is closed, the push rod in the self-opening cylinder is prevented from being pushed out, the sliding plate is enabled to be horizontally discharged along the slideway of the supporting frame, the telescopic rod of the execution cylinder is clamped in the small through hole, the movement of the rack is controlled, the door body cannot be opened, safety of passengers is protected, when the door body needs to be opened in an emergency condition, a system air source is cut off and discharged through the emergency valve, the sliding plate is retracted under the action of the return spring by the push rod, when the large through hole in the limiting hole is coaxial with the rack, the limitation of self-opening is relieved by the rack, the gear is driven to rotate, and therefore the door body can be opened smoothly, and safety use performance is limited and improved.

The invention can be provided with the self-opening prevention electromagnetic valve on the air path of the self-opening prevention air cylinder so as to control the reciprocating motion of the sliding plate by controlling the self-opening prevention air cylinder.

The invention is provided with an adjustable delay relay K1 on the control circuit of the door pump electromagnetic valve, so as to achieve the effect of accelerating the smooth opening of the vehicle door.

The invention also provides an adjustable delay relay K2 on the closing line of the self-opening prevention electromagnetic valve, so that when the door is closed, the door is closed by the door pump electromagnetic valve, the self-opening prevention electromagnetic valve is prevented from acting, the door body is closed in place under the action of the delay relay K2, the time is properly prolonged by the delay relay K2, and the performance of safe use is further achieved.

The sliding plate is made of tin bronze plates and other antifriction materials, so that the effect of abrasion resistance is achieved.

By adopting the structure, the invention has the advantages of novel structure, flexible operation, strong adaptability, strong safety and the like.

Drawings

FIG. 1 is a prior art is a schematic structural diagram of the (c).

Fig. 2 is a schematic structural view of the present invention.

Fig. 3 is a schematic perspective view of the self-opening prevention mechanism in the present invention.

Fig. 4 is a right side view of fig. 3.

Fig. 5 is a schematic diagram of a self-opening preventing structure of the self-opening preventing mechanism of the present invention.

Fig. 6 is a schematic structural view of the self-opening prevention mechanism of the present invention.

FIG. 7 is a manual mode of the invention an anti-self-opening electric schematic diagram.

Fig. 8 is a schematic diagram of the automatic mode anti-self-opening electric principle of the invention.

Reference numerals: a rack 1; a contact switch 2; a cam 3; a gear 4; a bracket 5; an induction cylinder 6; an execution cylinder 7; a control cable 8; an emergency valve 9; door pump a solenoid valve 10; a rack guide wheel 11; a positioning bolt 12; a cylinder push rod 13; a door pillar 14; swing arm 15 (15) the method comprises the steps of carrying out a first treatment on the surface of the; a door body 16; a door glass 17; a gas path 18; a self-opening prevention solenoid valve 19; an anti-self-opening mechanism 20; a chassis 21; a slide plate 22; push plate a bracket 23; a push rod 24; a release position air hole 25; a lock position air hole 26; a self-opening prevention cylinder 27; a support frame 28; a limit bolt 29; a lock nut 30; a spring base 31; a return spring 32.

Detailed Description

The following description is taken in conjunction with the accompanying drawings the invention further describes:

as shown in fig. 2, 3, 4 and 5, an outward swing door self-opening preventing device is provided with a door body control device, a door body 16 and a door upright post 14, wherein the door body control device comprises a rack 1, a contact switch 2, a cam 3, a gear 4, a bracket 5, a sensing cylinder 6, an actuating cylinder 7, a control cable 8, an emergency valve 9, a door pump electromagnetic valve 10, a rack guide wheel 11, a swing arm 15, an air channel 18 and a control system, which are the same as the prior art, and the outward swing door self-opening preventing device is not described in detail, and is characterized in that the self-opening preventing electromagnetic valve 19 and the self-opening preventing mechanism 20 which are positioned on the bracket 5 are formed by a chassis 21, a sliding plate 22, a push plate bracket 23, a push rod 24, a self-opening preventing cylinder 27, a supporting frame 29, a return spring 32 and a locking nut 30, wherein the door pump electromagnetic valve 10, the sensing cylinder 6, the actuating cylinder 7, the contact switch 2 and the self-opening preventing cylinder 27 are respectively controlled by the control system, the lower end of the underframe 21 is fixedly connected with the bracket 5, the upper end of the underframe 21 is fixedly connected with the supporting frame 29, the upper end of the supporting frame 29 is provided with an anti-self-opening air cylinder 27, the side wall of the front end is provided with a slideway, one side of the side wall is provided with a return spring 32, the upper end and the lower end of the sliding plate 22 are respectively in sliding connection with the slideway, the middle part of the sliding plate 22 is provided with a limiting hole, one side of the sliding plate 22 is fixedly connected with the lower end of the push plate bracket 23, the air cylinder push rod 13 of the actuating air cylinder 7 is connected in the limiting hole in a penetrating way, one end of the return spring 32 is fixedly connected with the supporting frame 29, the other end of the return spring is fixedly connected with the push plate bracket 23, the end of a telescopic rod of the anti-self-opening air cylinder 27 is fixedly connected with the push plate bracket 23 through a locking nut 30 so as to be beneficial to preventing the push rod 24 in the self-opening air cylinder 27 from being pushed out after the door body is closed (as shown in figure 5), the slide plate 22 is driven by the push plate bracket 23 to be horizontally smoothed out along the slide way of the supporting frame, and the small holes of the slide plate 22 do not enable the racks 1 driven by the execution air cylinders 7 to be positioned in the small through holes of the slide plate 22, so that the movement of the racks 22 is limited, the door body cannot be opened, and the safety of passengers is protected. When the door is opened, or in an emergency situation, as shown in fig. 6, the system air supply is shut off and vented through the emergency valve 9, under the action of the return spring 32, the sliding plate 22 is retracted to a large hole position, and meanwhile, the push plate bracket 23 drives the push rod 24 to return the self-opening prevention cylinder 27. When the large through hole in the limit air of the sliding block 22 is coaxial with the rack, the rack releases the motion restriction and drives the gear to rotate, so that the door body can be smoothly opened, and the safety usability is restricted and improved.

The limit hole is formed by the slide plate 22 communicated with the push rod 24 through the push plate bracket 23, the hole diameter of the release position of the slide plate 22 is larger than the diameter of the rack 1 so as to avoid damaging the rack, the locking position diameter of the slide plate 22 is smaller than the diameter of the rack 1 and larger than the diameter of the cylinder push rod 13 of the actuating cylinder 7, so that after the door body 16 is closed, the push rod 24 in the self-opening cylinder 27 is prevented from pushing out, the slide plate 22 is smoothed out along the slideway of the support frame 29, the cylinder push rod 13 of the actuating cylinder 7 is clamped in the locking position of the slide plate 22, the movement of the rack 1 is controlled, the door body 16 cannot be opened, the safety of passengers is protected, when the door body 16 needs to be opened in an emergency, the release position of the slide plate 22 is enabled to be in the same axis as the rack 1 under the action of the return spring 32 through the emergency valve, the limit of the self-opening prevention is released, the gear 4 is driven to rotate, the door body 16 can be opened smoothly, and the safety performance of the door body 16 can be greatly improved.

The invention can be provided with the self-opening prevention electromagnetic valve 19 on the air path of the self-opening prevention air cylinder 27, so as to be beneficial to avoiding the influence of the self-opening prevention mechanism on the operation of the door pump electromagnetic valve 10, and when the door is opened, the self-opening prevention electromagnetic valve 19 is opened first, then the door pump electromagnetic valve 10 is opened again, and the smooth opening of the door body 16 is further ensured.

The invention can be provided with the adjustable time delay relay K1 on the control circuit of the door pump electromagnetic valve 10 so as to achieve the effect of accelerating the smooth opening of the vehicle door.

The invention can also be provided with the adjustable delay relay K2 on the closing line of the self-opening prevention electromagnetic valve 19, so that when the door is closed, the door is closed by the door pump electromagnetic valve, the self-opening prevention electromagnetic valve is prevented from acting after the self-opening prevention electromagnetic valve under the action of the delay relay K2, the door body is closed in place, the time is properly prolonged by the delay relay K2, and the performance of safe use is further achieved.

The sliding plate 22 is made of tin bronze plate so as to achieve the function of wear resistance.

When the door pump is used, in order to effectively control the structure of the door pump self-opening prevention mechanism, two sets of control modes are designed to control the door body to be closed:

1. manual mode: the passenger door anti-self-opening mechanism is locked and unlocked through the manual control button in the door closing and opening processes. The control mode is simple and convenient, and only a button is needed to be added on the instrument desk. After the vehicle door is closed, pressing an opening button of the anti-self-opening mechanism; before opening the door, the closing button of the anti-self-opening mechanism is pressed first, and after unlocking, the opening button of the vehicle door is pressed, and the schematic diagram is shown in fig. 7.

2. Automatic mode: the self-opening prevention mechanism is implemented by a button of the passenger door. In order to prevent the self-priming mechanism from affecting the operation of the door pump mechanism, the switching sequence of the solenoid valves must therefore be taken into account in the control line design. When the door is opened, the self-opening prevention electromagnetic valve must be opened first, then the door pump electromagnetic valve is opened, and the door body is opened smoothly. In order to ensure the smooth execution, an adjustable delay relay K1 is added on a door pump electromagnetic valve circuit for opening the door, in order to increase the opening speed of the vehicle door, the working speed of the self-opening prevention electromagnetic valve can be adjusted, 2Sec is generally set, and the time delay of K1 is shortened as much as possible. The process of closing the door is the opposite of this, an adjustable delay relay K2 is added on a control circuit of the closing-door circuit for preventing the self-opening electromagnetic valve from closing. When the door is closed, the door pump electromagnetic valve firstly executes the door closing action, and under the action of the delay relay K2, the door pump electromagnetic valve is prevented from automatically opening and then acting. In order to ensure that the door body is closed in place, the delay time of the K2 relay can be properly prolonged, and the delay time is better than the time for closing the door by about 10 Sec. The principle of the automatic mode anti-self-starting mechanism is shown in fig. 8.

Example 1: as shown in fig. 2, 3, 4, 5 and 6, two door bodies of the airport ferry vehicle are respectively provided with a door body control device and an automatic opening prevention mechanism, and door posts are controlled by the door body control device and the automatic opening prevention mechanism, so that the door bodies can safely sit on the premise that passengers do not have any protection measures, and passengers leaning on the door bodies can not automatically open the door bodies;

when the door is opened as shown in fig. 5, the door opening control button is clicked, the self-opening prevention electromagnetic valve 19 is firstly opened, then the door pump electromagnetic valve 10 is opened, the door opening speed is accelerated through the adjustable delay relay K1, at the moment, the actuating cylinder 7 acts to drive the cylinder push rod 13 to retract, the rack 1 is driven to retract, the door upright post rotates anticlockwise under the action of the gear 4 to open the passenger door, when the door 16 is about to be closed, if the air pressure difference at two ends of the piston of the actuating cylinder 7 is raised, thereby triggering the induction cylinder 6, the control cable 8 feeds back to the door pump electromagnetic valve 10, so as to open the door, after the door is closed again, the push rod 24 in the self-opening prevention cylinder 27 pushes out, the slide plate 22 is smoothly pulled out along the slide way of the support frame 29, the cylinder push rod 13 of the actuating cylinder 7 is clamped in the locking position of the slide plate 22, further the movement of the rack 1 is controlled, the door 16 cannot be opened, the safety hidden danger of the door is solved, the safety of passengers is protected, when the door 16 needs to be closed, the door 16 needs to be opened, the air source is cut off through the emergency valve and the system is released, the air source is opened, the slide plate 24 is smoothly under the action of the spring 22, the axial center of the slide plate 22 is driven to be opened, the safety is greatly limited, and the safety of the slide plate 1 is simultaneously when the slide plate 1 is opened, and the door is opened, and the safety performance is greatly limited, and the door is greatly is opened.

Claims

1. The utility model provides a door body controlling means is prevented from opening door by outer swing door, is equipped with door body controlling means, door body and door stand, door body controlling means includes bracket, swing arm, emergency valve, door pump solenoid valve, response cylinder, execution cylinder, control cable, gas circuit, rack, gear, rack leading wheel, cam, contact switch and control system, and characterized in that is equipped with on the bracket and prevents from opening the mechanism, prevent from opening the mechanism including chassis, slide, push pedal support, push rod, prevent from opening cylinder, braced frame, return spring and lock nut, door pump solenoid valve, response cylinder, execution cylinder, contact switch and prevent from opening the cylinder and control system control respectively, chassis lower extreme and bracket fixed connection, braced frame upper end is equipped with prevents from opening the cylinder, and the front end lateral wall is equipped with the slide, one side is equipped with return spring, slide upper and lower both ends respectively with slide sliding connection, slide middle part is equipped with spacing hole, slide one side and push pedal support lower extreme fixed connection, the cylinder push rod of execution cylinder is worn to connect in spacing hole, the other end and braced frame fixed connection are in the diameter of the cylinder that the diameter of the push pedal is big diameter of the cylinder is the through-hole of the big diameter of the cylinder, the diameter of the cylinder is connected with the thrust rod is fixed in the diameter of the big diameter of the cylinder, the diameter of the cylinder is fixed to the diameter of the cylinder is.

2. The out-swinging door self-opening prevention device according to claim 1, the automatic opening prevention electromagnetic valve is characterized in that an automatic opening prevention electromagnetic valve is arranged on the air passage of the automatic opening prevention air cylinder.

3. The device for preventing the self-opening door of the outward swing door according to claim 1 or 2, wherein an adjustable delay relay K1 is arranged on a control circuit of the door pump electromagnetic valve.

4. The outward swing door self-opening prevention device according to claim 3, wherein the closing line of the self-opening prevention electromagnetic valve is provided with an adjustable delay relay K2.

5. The outward swing door self-opening prevention device according to claim 1, wherein the sliding plate is made of tin bronze plate.