Integrated emergency valve bus passenger door lock

By integrating the emergency controller and electro-pneumatic system into the passenger door lock of the bus, the problem of separate arrangement of passenger door lock and emergency valve is solved, achieving high integration and multiple control methods, and improving aesthetics and safety.

CN224396241UActive Publication Date: 2026-06-23ZHENGZHOU JINGYIDA AUTO PARTS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU JINGYIDA AUTO PARTS
Filing Date
2025-06-23
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing passenger door locks and emergency valves are separately arranged in buses, resulting in poor integration, poor appearance, and low installation efficiency.

Method used

Design a bus passenger door lock with integrated emergency valve. By integrating an emergency controller into the passenger door lock body, adopting a handle-type external structure, and combining an electro-pneumatic system, it supports functions such as remote control, remote control and facial recognition, and integrates door opening and closing buttons.

Benefits of technology

It improves the integration and aesthetics of passenger door locks, supports multiple control methods, and enhances installation efficiency and security.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224396241U_ABST
    Figure CN224396241U_ABST
Patent Text Reader

Abstract

The utility model provides a passenger door lock of integrated emergency valve, including passenger door lock body, is provided with the door lock car outside operation handle on the outside of passenger door lock body, is provided with the door lock lock core on the door lock car outside operation handle, and is hingedly arranged with the car outside emergency controller operation handle on passenger door lock body, door lock car outside operation handle and door lock car inside operation knob transmission connection, the knob is connected with the knob of door lock car inside operation, and the knob is connected with the piston rod of central control lock small pneumatic cylinder, the utility model has the advantages of: 1, passenger door lock integrated emergency controller design, 2, passenger door lock integrated pneumatic cylinder realizes electric control pneumatic door opening, 3, integrated switch door button: door lock is integrated switch door button simultaneously, and it is convenient for driver to operate passenger door opening / closing fast, and simultaneously through increasing electrical logic restraint operation scene, and the safety is considered.
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Description

Technical Field

[0001] This utility model relates to a passenger door lock for buses with an integrated emergency valve. Background Technology

[0002] Currently, passenger door locks on buses are mechanical and manually operated, which is inconvenient. With the development of bus electrification and intelligence, the demand for upgraded experiences such as central control, remote control, and remote operation of passenger door locks is becoming increasingly strong.

[0003] Meanwhile, the passenger door emergency controller, a key functional component of the passenger door, is primarily used to ensure rapid evacuation of passengers in emergency situations such as fire, submersion, or collision. When an emergency occurs, passengers inside or outside the vehicle can trigger the emergency unlocking module by operating an emergency valve located on the vehicle body. At this point, the door opens under the action of the emergency unlocking mechanism, allowing for rapid evacuation and ensuring passenger safety. Conventional passenger door locks and emergency valves are separate components, resulting in poor integration, unsightly exterior appearance, and low installation efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is: addressing the issues of poor integration and poor appearance of conventional passenger door locks and emergency valves being arranged separately. This utility model provides a passenger door lock for buses with an integrated emergency valve.

[0005] To solve the above problems, this utility model is achieved through the following technical solution:

[0006] A passenger door lock for a bus with an integrated emergency valve includes a passenger door lock body, an external operating handle for the door lock body on the outside of the passenger door lock body, a door lock cylinder on the external operating handle, and an external emergency controller operating handle hinged to the passenger door lock body.

[0007] The external operating handle of the door lock is connected to the internal operating knob of the door lock. The internal operating knob of the door lock is connected to a toggle block, which is connected to the piston rod of the central locking cylinder.

[0008] One end of the operating handle of the external emergency controller is hinged to the passenger door lock body via a hinge shaft, and the other end of the operating handle extends into the inside of the passenger door lock body. The operating handle of the external emergency controller located inside the passenger door lock body is connected to the swing end of the emergency valve rocker arm. The swing end of the emergency valve rocker arm is in contact with the emergency valve alarm micro switch, and the emergency valve alarm micro switch is connected to the emergency valve.

[0009] On the outside of the passenger door lock body, the operating handle of the external emergency controller includes a hinge end and a hand-held operating end. The hinge end is hinged to the passenger door lock body through a hinge shaft, and the hand-held operating end is a free end. On the inside of the passenger door lock body, the hinge end is connected to a curved part, which extends into the inside of the passenger door lock body and rotates with the hinge end. The curved part is arranged opposite to the swing end of the emergency valve rocker arm. When the curved part rotates, it moves the swing end of the emergency valve rocker arm from one position to another.

[0010] An external emergency controller operating handle return spring is connected to the curved part of the external emergency controller operating handle, and the other end of the external emergency controller operating handle return spring is fixedly connected to the inside of the passenger door lock body.

[0011] The emergency valve alarm micro switch is also connected to the emergency valve pull wire.

[0012] The door lock operation knob inside the vehicle is connected to the rotating component for transmission, and the door lock operation knob inside the vehicle rotates coaxially with the rotating component, with a toggle block provided on the rotating component.

[0013] A first contact block and a second contact block are provided on the rotating part. The first contact block is connected to the unlocked position micro switch, and the second contact block is connected to the locked position micro switch. Both the unlocked position micro switch and the locked position micro switch are located on the inner side of the passenger door lock body.

[0014] A locking rod connector is provided on the rotating part, and the locking rod connector is connected to the locking rod.

[0015] The passenger door lock body is provided with a door 1 opening / closing button and a door 2 opening / closing button, both of which are located on the outside of the passenger door lock body; the door 1 opening / closing button is connected to the door 1 opening / closing button switch, and the door 2 opening / closing button is connected to the door 2 opening / closing button switch, both of which are located on the inside of the passenger door lock body.

[0016] A decorative lock body part is provided on the outside of the passenger door lock body.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Passenger door lock integrated emergency controller design: An integrated design is adopted, which integrates the passenger door emergency controller into the passenger door lock. The external structure of the emergency controller is changed from the traditional knob type to a handle type, which is integrated with the door lock features and improves the overall aesthetics.

[0019] 2. Passenger door lock integrated cylinder enables electro-pneumatic door opening: The integrated cylinder, together with the vehicle's solenoid valves, can support electro-pneumatic unlocking / locking, enabling door locks to achieve various scenarios such as remote control, remote control, NFC, and facial recognition. In the future, it will support linkage with autonomous driving systems.

[0020] 3. Integrated door opening and closing buttons: The door lock also integrates door opening and closing buttons, which makes it easy for drivers and others to quickly open / close the passenger door. At the same time, by adding electrical logic constraints on the operation scenarios, safety is also taken into account. Attached Figure Description

[0021] Figure 1 This is an overall structural diagram of the present invention;

[0022] Figure 2 This is a diagram of the internal structure of the present invention;

[0023] Figure 3 Status diagram of passenger door lock emergency function;

[0024] Figure 4 This is a diagram of the locked state structure;

[0025] Figure 5 This is the structure diagram for the unlocked state. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] like Figure 1 As shown, a passenger door lock for a bus with an integrated emergency valve includes a passenger door lock body 1, an external operating handle 4 on the outside of the passenger door lock body 1, a door lock cylinder 5 on the external operating handle 4, and an external emergency controller operating handle 3 hinged to the passenger door lock body 1.

[0029] The external operating handle 4 of the door lock is kinetically connected to the internal operating knob 10 of the door lock. An actuating block 12 is connected to the internal operating knob 10, and the actuating block 12 is connected (hinged) to the piston rod of the central locking cylinder 9. The central locking cylinder 9 is provided with a central locking cylinder inlet A 23 and a central locking cylinder inlet B 24.

[0030] One end of the external emergency controller operating handle 3 is hinged to the passenger door lock body 1 via a hinge shaft, and the other end of the external emergency controller operating handle 3 extends into the inside of the passenger door lock body 1. The external emergency controller operating handle 3 located inside the passenger door lock body 1 is connected to the swing end of the emergency valve rocker arm 17. The swing end of the emergency valve rocker arm 17 is in contact with the emergency valve alarm micro switch 18. The emergency valve alarm micro switch 18 is connected to the emergency valve 20. The emergency valve 20 is provided with an emergency valve inlet P 21 and an emergency valve outlet A 22.

[0031] It should be noted that one end of the emergency valve rocker arm 17 is hinged, specifically, it can be hinged to the valve body of the emergency valve 20 via a hinge shaft, or it can be hinged to the passenger door lock body 1 via a hinge shaft. The other end of the emergency valve rocker arm 17 is a swing end, which, after swinging from the initial position to another position, contacts and connects with the emergency valve alarm micro switch 18. Figure 2 In the middle, the emergency valve rocker arm 17 shows two states, and there is only one of them.

[0032] Furthermore, on the outside of the passenger door lock body 1, the external emergency controller operating handle 3 includes a hinge end 32 and a handheld operating end 31. The hinge end 32 is hinged to the passenger door lock body 1 via a hinge shaft, and the handheld operating end 31 is a free end. Rotating the handheld operating end 31 causes the hinge end 32 to rotate around the hinge shaft. On the inside of the passenger door lock body 1, the hinge end 32 is connected to a bent portion 33, which extends into the inside of the passenger door lock body 1 and rotates with the hinge end 32. The bent portion 33 is positioned opposite to the swing end of the emergency valve rocker arm 17. When the bent portion 33 rotates, it moves the swing end of the emergency valve rocker arm 17 from one position to another.

[0033] Furthermore, an external emergency controller operating handle return spring 16 is connected to the curved portion 33 of the external emergency controller operating handle 3, and the other end of the external emergency controller operating handle return spring 16 is fixedly connected to the inside of the passenger door lock body 1.

[0034] Furthermore, the emergency valve alarm micro switch 18 is also connected to an emergency valve pull cable 19, which is used for emergency operation inside the vehicle.

[0035] Furthermore, the door lock interior operating knob 10 is connected to the rotating component 25 via a transmission connection, and the door lock interior operating knob 10 and the rotating component 25 rotate coaxially. An actuating block 12 is provided on the rotating component 25, and the actuating block 12 is connected to the piston rod of the central locking cylinder 9 (hinged connection). More preferably, as... Figure 4 , Figure 5 As shown, a first contact block 26 and a second contact block 27 are provided on the rotating component 25. The first contact block 26 is connected to the unlocked position micro switch 11, and the second contact block 27 is connected to the locked position micro switch 15. The unlocked position micro switch 11 and the locked position micro switch 15 are both located on the inner side of the passenger door lock body 1. When the rotating component 25 rotates, it drives the first contact block 26 and the second contact block 27 to rotate, thereby touching the unlocked position micro switch 11 or the locked position micro switch 15, thus outputting an unlocked position signal or a locked position signal.

[0036] Furthermore, a locking rod connector 28 is provided on the rotating part 25, and the locking rod connector 28 is connected to the locking rod. In this way, the central locking cylinder 9 controls the piston rod to retract / extend, which drives the actuating block 12 on the rotating part 25 to rotate. As the rotating part 25 rotates, the locking rod retracts / extends.

[0037] Furthermore, a door 1 opening / closing button 7 and a door 2 opening / closing button 6 are provided on the passenger door lock body 1. Both door 1 opening / closing buttons 7 and 6 are located on the outside of the passenger door lock body 1 for easy operation. More preferably, door 1 opening / closing buttons 7 and 6 are located within the door handle recess 8 on the passenger door lock body 1. Moreover, door 1 opening / closing button 7 is connected to door 1 opening / closing button switch 13, and door 2 opening / closing button 6 is connected to door 2 opening / closing button switch 14. Both door 1 opening / closing button switch 13 and door 2 opening / closing button switch 14 are located on the inside of the passenger door lock body 1.

[0038] Furthermore, a lock body decorative piece 2 is provided on the outside of the passenger door lock body 1.

[0039] The mechanical opening and closing process of the passenger door lock in this utility model is as follows:

[0040] 1. Unlocking and locking from outside the vehicle

[0041] When unlocking, insert the key into the lock cylinder 5 and rotate it 90 degrees clockwise. Alternatively, rotate the door lock external operating handle 4 clockwise 90 degrees to unlock.

[0042] When locked, insert the key into the lock cylinder 5 and rotate it 90 degrees clockwise. Then, rotate the door lock external operating handle 4 counterclockwise to lock it 90 degrees.

[0043] 2. Unlocking and locking from inside the vehicle

[0044] When unlocking, rotating the door lock external operating handle 4 clockwise causes the door lock internal operating knob 10 to rotate counterclockwise (according to the diagram, the directions inside and outside the vehicle are opposite), thereby causing the toggle block 12 to rotate counterclockwise, and the lock lever connector 28 to rotate accordingly, and the lock lever retracts to achieve unlocking.

[0045] When locked, the external operating handle 4 of the door lock moves the internal operating knob 10 of the door lock clockwise, which in turn moves the toggle block 12 clockwise, causing the lock lever connector 28 to rotate accordingly, and the lock lever extends to achieve locking.

[0046] The process of implementing the passenger door lock central control function:

[0047] When unlocking: When the air inlet B 24 of the central locking cylinder is ventilated, the piston rod of the central locking cylinder 9 retracts, driving the toggle block 12 to rotate counterclockwise, and the lock lever retracts to achieve unlocking;

[0048] When locked: When the air inlet A23 of the central locking cylinder is vented, the piston rod of the central locking cylinder 9 extends, driving the toggle block 12 to rotate clockwise, and the locking lever extends to achieve locking.

[0049] Passenger door lock emergency function implementation process:

[0050] 1. During emergency operations outside the vehicle, such as Figure 3 As shown, pulling the emergency control handle 3 outward by approximately 30 degrees rotates the emergency valve rocker arm 17, triggering the emergency valve 20 to release air. This, in turn, triggers the rapid exhaust valve in the passenger door air circuit to release air from the passenger door air circuit, achieving emergency venting. At this time, the passenger door can be manually opened for escape. Simultaneously, the emergency valve rocker arm 17 triggers the emergency valve alarm microswitch 18 to provide an alarm signal.

[0051] 2. In case of emergency operation inside the vehicle, pull the emergency valve cable 19 to rotate the emergency valve rocker arm 17, which will also trigger the emergency valve 20 to release air, thus venting the air from the passenger door air circuit. At this time, the passenger door can be manually opened for escape. Simultaneously, the emergency valve rocker arm 17 triggers the emergency valve alarm microswitch 18 to provide an alarm signal.

[0052] This utility model integrates the passenger door emergency controller into the passenger door lock through an integrated design. The external structure of the emergency controller is changed from the traditional knob type to a handle type, blending with the door lock features and improving the overall aesthetics. At the same time, the integrated cylinder supports electro-pneumatic unlocking / locking, enabling the door lock to realize various scenarios such as remote control, remote control, NFC, and facial recognition. The door lock also integrates door opening and closing buttons for drivers and others to quickly open / close the passenger door. Meanwhile, by adding electrical logic constraints to the operation scenarios, safety is also taken into account.

[0053] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A passenger door lock for a bus with an integrated emergency valve, characterized in that: The system includes a passenger door lock body (1), an external door lock operating handle (4) is provided on the outside of the passenger door lock body (1), and a door lock cylinder (5) is provided on the external door lock operating handle (4); and an external emergency controller operating handle (3) is hinged to the passenger door lock body (1). The door lock external operating handle (4) is connected to the door lock internal operating knob (10) via a transmission. The door lock internal operating knob (10) is connected to a toggle block (12), which is connected to the piston rod of the central locking cylinder (9).

2. The passenger door lock for a bus with an integrated emergency valve according to claim 1, characterized in that: One end of the external emergency controller operating handle (3) is hinged to the passenger door lock body (1) via a hinge shaft, and the other end of the external emergency controller operating handle (3) extends into the inside of the passenger door lock body (1). The external emergency controller operating handle (3) located inside the passenger door lock body (1) is connected to the swing end of the emergency valve rocker arm (17). The swing end of the emergency valve rocker arm (17) is in contact with the emergency valve alarm micro switch (18). The emergency valve alarm micro switch (18) is connected to the emergency valve (20).

3. A passenger door lock for a bus with an integrated emergency valve according to claim 2, characterized in that: On the outside of the passenger door lock body (1), the vehicle emergency controller operating handle (3) includes a hinge end (32) and a hand-held operating end (31). The hinge end (32) is hinged to the passenger door lock body (1) through a hinge shaft, and the hand-held operating end (31) is a free end. On the inside of the passenger door lock body (1), the hinge end (32) is connected to a bent part (33). The bent part (33) extends into the inside of the passenger door lock body (1) and rotates with the hinge end (32). The bent part (33) is arranged opposite to the swing end of the emergency valve rocker arm (17). When the bent part (33) rotates, it moves the swing end of the emergency valve rocker arm (17) from one position to another.

4. A passenger door lock for a bus with an integrated emergency valve according to claim 3, characterized in that: An external emergency controller operating handle return spring (16) is connected to the bent part (33) of the external emergency controller operating handle (3), and the other end of the external emergency controller operating handle return spring (16) is fixedly connected to the inside of the passenger door lock body (1).

5. A passenger door lock for a bus with an integrated emergency valve according to claim 2, characterized in that: The emergency valve alarm micro switch (18) is also connected to the emergency valve pull wire (19).

6. A passenger door lock for a bus with an integrated emergency valve according to claim 1, characterized in that: The door lock interior operation knob (10) is connected to the rotating part (25) for transmission, and the door lock interior operation knob (10) and the rotating part (25) rotate coaxially. A toggle block (12) is provided on the rotating part (25).

7. A passenger door lock for a bus with an integrated emergency valve according to claim 6, characterized in that: A first contact block (26) and a second contact block (27) are provided on the rotating part (25). The first contact block (26) is connected to the unlocked position micro switch (11), and the second contact block (27) is connected to the locked position micro switch (15). The unlocked position micro switch (11) and the locked position micro switch (15) are both provided on the inner side of the passenger door lock body (1).

8. A passenger door lock for a bus with an integrated emergency valve according to claim 6, characterized in that: A locking rod connector (28) is provided on the rotating part (25), and the locking rod connector (28) is connected to the locking rod.

9. A passenger door lock for a bus with an integrated emergency valve according to claim 1, characterized in that: A door 1 opening / closing button (7) and a door 2 opening / closing button (6) are provided on the passenger door lock body (1). Both the door 1 opening / closing button (7) and the door 2 opening / closing button (6) are located on the outside of the passenger door lock body (1). The door 1 opening / closing button (7) is connected to the door 1 opening / closing button switch (13), and the door 2 opening / closing button (6) is connected to the door 2 opening / closing button switch (14). Both the door 1 opening / closing button switch (13) and the door 2 opening / closing button switch (14) are located on the inside of the passenger door lock body (1).

10. A passenger door lock for a bus with an integrated emergency valve according to claim 1, characterized in that: A lock body decorative piece (2) is provided on the outside of the passenger door lock body (1).