CN107035245B - A kind of mechanical lock of fast-escape door - Google Patents

Abstract

The invention discloses a mechanical lock for a quick escape door, which is installed on the upper and lower doors of the quick escape door and includes a handle mechanism, a link mechanism and a locking mechanism; the handle mechanism is connected with the link mechanism, and the connection The lever mechanism is connected with the locking mechanism, wherein the handle mechanism and the link mechanism are fixedly connected with the upper door, the locking mechanism is fixedly connected with the upper and lower doors, and the locking mechanism is also connected to the upper and lower doors and the vehicle body and the Active connections are provided between the upper and lower doors. The invention adopts a mechanical transmission device, which increases the reliability of unlocking under severe and complex conditions, the equipment is simple to operate and easy to maintain, and can effectively improve the escape speed of passengers when an accident occurs.

Description

A fast escape door mechanical lock

technical field

The invention relates to a mechanical locking device, in particular to a mechanical lock for a quick escape door.

Background technique

In daily life, traveling by public transportation has become the choice of more and more people. With the continuous advancement of urbanization, the urban population is gradually increasing. For densely populated cities, the load of public transportation is increasing, such as public transportation. Public transport such as cars and subways are often crowded during peak hours. In the event of a traffic accident, fire or equipment failure, the doors for getting in and out of the car are often too narrow due to crowded people, and it is impossible to evacuate the crowd in time, resulting in many tragedies. The locking mechanism of the existing vehicle door is often complicated in structure, has poor unlocking speed and reliability, is difficult to maintain, and has high maintenance costs.

SUMMARY OF THE INVENTION

In view of the defects existing in the prior art, the purpose of the present invention is to provide a mechanical lock for a quick escape door, which ensures the quick and reliable unlocking of the new escape door and improves the escape efficiency. The invention adopts the design of "one rotation and multiple controls" to ensure the quick unlocking of the escape door, improve the escape speed of passengers, reduce the occurrence of secondary injuries, and use a mechanical transmission device to increase the reliability of escape under harsh and complex conditions.

In order to achieve the above object, the present invention adopts the following technical scheme:

A mechanical lock for a quick escape door, installed on the upper and lower doors of the quick escape door, includes a handle mechanism, a link mechanism and a locking mechanism; the handle mechanism is connected with the link mechanism, and the link mechanism is connected with the lock The locking mechanism is connected with the upper door, the handle mechanism and the link mechanism are fixedly connected with the upper door, the locking mechanism is firmly connected with the upper and lower doors, and the locking mechanism is also connected with the upper and lower doors and the vehicle body and the upper and lower doors. Active connections are provided between.

The handle mechanism includes a handle, a handle base, a torsion spring, a single gear, a half gear, and a small motor; the link mechanism includes a connecting rod, a slide rail, a spring, and a small metal sheet; and the locking mechanism includes a rack, Toothed pin, double gear, rack spring, pin sleeve, fastening base, guide rail; the handle base is fixedly connected with the upper door, the handle is connected with the handle base, and the handle is connected with a torsion spring and a single gear , the small motor is fixedly connected with the handle base, the small motor is connected with a half gear, and the half gear is engaged with the single gear; the middle part of the connecting rod passes through the handle base, and a small hole is opened in the middle There is a small metal sheet on the right side of the hole, and a small hole in the middle of the connecting rod with a protrusion at the end of the handle; the two sides of the connecting rod are fixedly connected with the spring, the spring is fixedly connected with the slide rail, and the slide rail is connected with the upper door Fixed connection; the locking mechanism is symmetrically arranged with respect to the handle mechanism, and the structure on one side is as follows: the fastening base is fixedly connected with the lower door, and the fastening base is fixedly connected with a guide rail and a pin sleeve, The lower end of the fastening base is connected with a rack spring, the rack spring is fixedly connected with the lower end of the rack, the upper end of the rack is provided with a small hole, and the protrusions at both ends of the connecting rod are inserted in the small hole, and the rack can move along the The guide rail moves up and down; the other pin sleeve is fixedly connected with the upper door, a double gear is installed on the fastening base fixed with the lower door, the other double gear is installed on the pin sleeve fixed with the upper door, and two double The gears are on a vertical line, the racks are engaged with the external gears in the two double gears, the two pin sleeves are respectively sleeved with toothed pins, and the toothed pins are respectively connected with the internal gears in the two double gears. When engaged, the ends of the toothed pins are inserted into the door frame of the vehicle body, thereby providing locking of the upper and lower vehicle doors with the vehicle body. There is a certain gap between the inner and outer gears of the double gear.

In the locking mechanism of the mechanical lock, "one rotation and multiple controls", which converts one motion into multiple simultaneous motions, is realized through the close combination of the gear and the rack. The mechanical lock adopts springs in many places, which not only ensures the mechanical structure, but also does not affect the rapid opening of the escape door. The mechanical lock has a motor reserved at the handle mechanism, so that it can be triggered and opened by multiple methods, and the practicability of the mechanical lock is enhanced. The mechanical lock has a simple structure and is easy to maintain and repair later.

Compared with the prior art, the beneficial effects achieved by the present invention are:

The invention has a reasonable structure. By adopting a mechanical structure, the escape speed and reliability of passengers are improved, and the reliability of escape under harsh and complex conditions is increased. The equipment is simple to operate and easy to maintain, and can effectively improve the escape speed of passengers when an accident occurs. And the reserved motor enhances its practicality and its ability to deal with different situations.

Description of drawings

FIG. 1 is a schematic structural diagram of the mechanical lock of the quick escape door of the present invention.

2 is a schematic structural diagram of the mechanical lock handle mechanism of the quick escape door of the present invention.

3 is a schematic structural diagram of the mechanical lock handle mechanism of the quick escape door of the present invention.

4 is a schematic diagram of the connection between the linkage mechanism and the locking mechanism of the mechanical lock of the quick escape door of the present invention.

FIG. 5 is a schematic view of the guide rail of the mechanical lock of the quick escape door of the present invention.

FIG. 6 is a schematic diagram of an applied escape door created by the present invention.

Detailed ways

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the application of the present invention to the escape door, and are not intended to limit the use of the present invention.

As shown in Figure 1, a mechanical lock for a quick escape door is installed on the upper and lower doors of the quick escape door, and includes a handle mechanism, a link mechanism and a locking mechanism; the handle mechanism is connected with the link mechanism, so The connecting rod mechanism is connected with the locking mechanism, wherein the handle mechanism and the connecting rod mechanism are fixedly connected with the upper door, the locking mechanism is fixedly connected with the upper and lower doors, and the locking mechanism is also connected to the upper and lower doors and the vehicle. Active connections are provided between the body and the upper and lower doors.

As shown in FIGS. 1-6 , the handle mechanism includes a handle 12 , a handle base 15 , a torsion spring 16 , a single gear 17 , a half gear 18 , and a small motor 19 , and the linkage mechanism includes a connecting rod 6 and a slide rail 11 . , spring 14, small metal sheet 20, the locking mechanism includes a rack 3, a toothed pin 4, a double gear 5, a rack spring 7, a pin sleeve 8, a fastening base 9, and a guide rail 10; the handle base The seat 15 is fixedly connected with the upper door 1, the handle 12 is connected with the handle base 15, the handle 12 is connected with a torsion spring 16 and a single gear 17, the small motor 19 is fixedly connected with the handle base 15, the small motor 19 is connected with a half gear 18, and the half gear 18 is engaged with the single gear 17; the middle of the connecting rod 6 passes through the handle base 15, a small hole is opened in the middle of the connecting rod 6, and there is a small metal sheet 20 on the right side of the small hole, The end of the handle 12 has a protrusion 21 to catch the small hole in the middle of the connecting rod 6; the two sides of the connecting rod 6 are fixedly connected with the spring 14, the spring 14 is fixedly connected with the slide rail 11, and the slide rail 11 is connected with the upper door 1. Fixed connection; the locking mechanism is symmetrically arranged about the handle mechanism, and the structure on one side is: the fastening base 9 is fixedly connected to the lower door 2, and the fastening base 9 is fixedly connected with a guide rail 10 And a pin sleeve 8, the lower end of the fastening base 9 is connected to the rack spring 7, the rack spring 7 is fixedly connected with the lower end of the rack 3, the upper end of the rack 3 has a small hole, and a connecting hole is inserted in the small hole. Protrusions 13 at both ends of the rod 6, the rack 3 can move up and down along the guide rail 10; another pin sleeve 8 is fixedly connected with the upper door 1, and a double gear 5 is installed on the fastening base 9 fixedly connected with the lower door 2 , the other double gear 5 is installed on the pin sleeve 8 fixed with the upper door 1, the two double gears 5 are on a vertical line, the rack 3 is engaged with the external gears in the two double gears 5, and the two double gears 5 are in a vertical line. Toothed pins 4 are respectively sleeved in each of the pin sleeves 8, the toothed pins 4 are respectively engaged with the internal gears in the two double gears 5, and the ends of the toothed pins 4 are inserted into the door frame of the vehicle body, thereby providing Upper and lower doors and body locking. There is a certain gap between the inner and outer gears of the double gear 5 .

When an accident occurs, the driving method is selected according to the situation, and manual opening is selected in severe cases. After the handle 12 has turned half a turn, the torsion spring 16 can prevent the handle 12 from turning over. The protrusion 21 touches the small metal piece 20, and the small metal piece 20 can also prevent the handle 12 from turning its head. At this time, the protrusion 21 at the end of the handle 12 can pass through the hole in the middle of the connecting rod 6, and the connecting rod 6 will stretch. Under the action of the spring 14, it slides along the slide rail 11 to the side close to the upper door 1. At this time, the protrusions 13 at both ends of the connecting rod 6 are withdrawn from the holes at the upper ends of the racks 3 on both sides, and the racks 3 will Under the action of the stretched rack spring 7, it moves down along the guide rail 10, and the racks 3 on both sides are engaged with the external gears of the two double gears 5, then the racks 3 on each side are stretched. When the rack spring 7 moves down, it will drive the two double gears 5 it is engaged to rotate, and the inner gears of each two double gears 5 are respectively engaged with the two toothed pins 4, then the double gears 5 rotate. It will drive the toothed pin 4 to exit the door frame of the escape door along the pin sleeve 8 to achieve the purpose of unlocking the upper and lower doors and the vehicle body, and the rack 3 will eventually move along the guide rail 10 under the action of the stretched rack spring 7. Move down until only one double gear 5 is engaged to achieve the purpose of releasing the lock between the upper and lower doors. So far, the escape door has been unlocked. If possible, select the small motor 19 to drive, the small motor 19 drives the half gear 18 to rotate, and then drives the single gear 17 to rotate through the engagement of the half gear 18 and the single gear 17. Because the single gear 17 If it is fixedly connected with the handle 12, the rotation of the single gear 17 will drive the handle 12 to rotate, so that the protrusion 21 at the end of the handle 12 can pass through the middle hole of the connecting rod 6, and then the subsequent mechanical transmission can be triggered to achieve the purpose of unlocking.

The invention has a reasonable structure, and can be unlocked within 2 seconds by using a mechanical transmission device and a spring, which increases the reliability of escape under severe and complicated conditions, and ensures the speed of opening the door. The equipment is simple to operate and easy to maintain, which can effectively ensure that the escape door can be opened smoothly and immediately when the passengers escape in the event of an accident, and "one rotation and multiple controls" can be realized through a simple mechanical structure; when the accident is resolved, it can be easily repaired. The door is closed to achieve the closing of the door.

Claims (2)

1. a kind of mechanical lock of fast-escape door, it is installed on the entrance door (1) of fast-escape door, on exit door (2), feature exists In, including handle mechanism, link mechanism and retaining mechanism；The handle mechanism is connected with link mechanism, the link mechanism with Retaining mechanism is connected, and wherein handle mechanism and link mechanism are fixedly connected with entrance door (1), retaining mechanism and entrance door (1), exit door (2) has connected, and retaining mechanism also to entrance door (1), exit door (2) and car body and entrance door (1), under Car door provides flexible connection between (2)；The handle mechanism include handle (12), handle base (15), torque spring (16), Individual gears (17), half gear (18), micro-machine (19), the link mechanism include connecting rod (6), sliding rail (11), spring (14), Lamellule (20), the retaining mechanism include rack gear (3), band alligator nail (4), Double-gear (5), rack gear spring (7), pin sleeve (8), fastening base (9), guide rail (10)；The handle base (15) and entrance door (1) are connected, handle (12) and handle base (15) it is connected, torque spring (16) and individual gears (17), the micro-machine (19) and handle base is connected on the handle (12) Seat (15) is connected, and the micro-machine (19) is connected with half gear (18), and half gear (18) is engaged with individual gears (17)；Institute It states and passes through handle base (15) in the middle part of connecting rod (6), aperture is provided in the middle part of connecting rod (6), is had lamellule (20) on the right side of aperture, it is described Handle (12) end has protrusion (21) to block the aperture in the middle part of connecting rod (6)；Connecting rod (6) two sides and spring (14) are connected, institute It states spring (14) and sliding rail (11) to be connected, the sliding rail (11) and entrance door (1) are connected；The retaining mechanism is about handle mechanism It is symmetrically arranged, the structure of one side are as follows: the fastening base (9) and exit door (2) are connected, on the fastening base (9) It is fixed with guide rail (10) and a pin sleeve (8), fastening base (9) lower end connects rack gear spring (7), the rack gear spring (7) it is connected with rack gear (3) lower end, there is aperture in rack gear (3) upper end, and the protrusion (13) at connecting rod (6) both ends, institute are inserted in aperture Stating rack gear (3) can move up and down along guide rail (10)；Another pin sleeve (8) and entrance door (1) are connected, a Double-gear (5) It is mounted on the fastening base (9) being connected with exit door (2), another Double-gear (5) is mounted on the pin being connected with entrance door (1) On nail set (8), two Double-gears (5) are on a vertical line, the rack gear (3) and the external gear in two Double-gears (5) Occlusion, two pin sleeves (8) are interior to be cased with band alligator nail (4) respectively, and the band alligator nail (4) is respectively and in two Double-gears (5) Internal gear occlusion, in the doorframe of the end insertion car body of band alligator nail (4), provide upper and lower car door and car body with this Locking.

2. the mechanical lock of fast-escape door according to claim 1, which is characterized in that the interior external tooth of the Double-gear (5) There is certain gap between wheel.