Novel passenger door lock
By designing passenger door locks with multiple unlocking methods, combining pneumatic, manual rotary dial, and key unlocking, the problem of inconvenient operation in existing technologies has been solved, enabling safe and convenient unlocking in emergency situations and improving the system's flexibility and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-20
AI Technical Summary
The existing passenger door lock system for buses is inconvenient to operate in emergency situations and lacks multiple independent and complementary unlocking functions, resulting in inflexible and unreliable operation.
A novel passenger door lock was designed, combining three unlocking methods: pneumatic, manual rotary dial, and key unlocking. Through the coordinated work of components such as the lock body mounting cylinder, toggle seat, drive column, torsion spring, rotary dial, and cylinder, multiple unlocking methods are complemented to ensure system flexibility and reliability.
It improves the ease and reliability of unlocking passenger door locks in different situations, ensuring safe and convenient operation even in emergencies, and avoiding the shortcomings of a single unlocking method.
Smart Images
Figure CN224017022U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a door lock technical field, especially a novel passenger door lock. BACKGROUND
[0002] The passenger door lock of a passenger car is an important component that ensures passenger safety and vehicle operation safety. It is different from the door lock of an ordinary car, and is usually designed to be quickly opened and closed to facilitate passengers to quickly get on and off the vehicle, while ensuring the safe locking of the door during vehicle driving.
[0003] The existing passenger door lock system on the market currently mainly relies on a single operation mode, such as pneumatic control or mechanical key unlocking. Although these methods meet the basic needs to some extent, the single unlocking mode may lead to inconvenient operation in an emergency. Therefore, it is necessary to design a passenger door lock device that is stable and reliable in structure and has multiple independent and complementary unlocking functions. SUMMARY
[0004] The utility model provides a novel passenger door lock, which is stable and reliable in structure and has multiple independent and complementary unlocking functions, solving the above problems in the use of the prior art.
[0005] The technical scheme of the utility model is implemented as follows: a novel passenger door lock comprises a lock box, a lock body mounting cylinder is arranged in the middle of the lock box, a rotating groove is formed between the lock box and the lock body mounting cylinder, a lock body is rotatably arranged in the lock body mounting cylinder, a rotary knob is integrally formed on the front side of the lock body and located outside the lock box, a lock cylinder is arranged in the lock body, a key inlet penetrating the rotary knob is arranged on the front side of the lock cylinder, a lock tongue is arranged on the rear side of the lock cylinder, a lock hole for inserting the lock tongue is formed in the lock body mounting cylinder, a driving seat is rotatably arranged on the outside of the lock body mounting cylinder, a pull rod connecting seat is fixedly connected to the driving seat, a driving column is integrally formed on the rotary knob and penetrates the rotating groove for driving the driving seat to rotate, a rotating disc is arranged on the rear side of the driving seat for driving the driving seat to rotate, and a pneumatic cylinder is arranged on the inside of the lock box for driving the driving seat to rotate.
[0006] Preferably, a lock tongue through hole is radially formed in the lock body, the lock tongue is slidably arranged on the lock tongue through hole, an eccentric column is eccentrically arranged at the rear end of the lock cylinder, the lock tongue is movably matched with the eccentric column, and the lock hole is radially formed in the side wall of the lock body mounting cylinder and corresponds to the lock tongue through hole.
[0007] Preferably, a driving slot is formed in the side of the driving seat facing the rotary knob, and the rear end of the driving column is slidably matched in the driving slot.
[0008] Preferably, a torsional spring is sleeved outside the lock body mounting cylinder, the torsional spring comprises two torsional arms, the driving column is located between the two torsional arms, and the lock box is integrally formed with a torsional arm clamping seat on the rotating slot edge, and the torsional arm clamping seat is also located between the two torsional arms.
[0009] Preferably, a matching sleeve body is fixedly connected to the rotating disc, the matching sleeve body is clamped with the rotating seat, the matching sleeve body is rotationally matched at the rear end of the lock body, the rear side of the lock body mounting cylinder is integrally formed with a limiting clamping column, and a limiting groove is formed in the matching sleeve body and used for movably matching the limiting clamping column.
[0010] Preferably, an installation plate is fixedly connected to the inner side of the lock box, a cylinder mounting seat is rotationally connected to the installation plate, the cylinder is fixedly installed on the cylinder mounting seat, a connecting plate is fixedly connected to the piston shaft of the cylinder, and the other end of the connecting plate is rotationally connected to the rotating seat.
[0011] Preferably, a touch block is integrally formed on the rotating seat, two touch blocks are arranged, a micro switch is arranged on the inner side of the lock box, and the micro switch is arranged in two and corresponds to the rotating tracks of the touch blocks along with the rotating seat.
[0012] In summary, the passenger door lock has the following advantages:
[0013] 1. The passenger door lock improves the flexibility and reliability of the system through multiple unlocking modes (pneumatic, manual rotation of the rotating disc, and key unlocking and then manual rotation of the knob), and ensures that the unlocking operation can be safely and conveniently performed under different conditions. The rotating slot designed between the lock body mounting cylinder and the lock box enables the driving column to effectively drive the rotating seat to rotate, thereby realizing the pulling unlocking of the pull rod.
[0014] 2. The design of the lock tongue through hole enables the lock tongue to smoothly move under the action of the eccentric column of the lock cylinder, and enables the lock tongue to stably enter and exit the lock opening on the mounting cylinder.
[0015] 3. The design of the driving slot allows the driving column to slide therein, and ensures that the rotating disc or the cylinder can drive the rotating seat to rotate without being limited by the knob even in the lock tongue locking state. This design ensures the independent movement of the rotating seat, and improves the reliability and flexibility of the system.
[0016] 4. The design of the torsional spring provides additional resilience, and ensures that the knob can be quickly reset after unlocking.
[0017] 5. The design of the matching sleeve body enables the rotating disc to directly drive the rotating seat to rotate, and ensures the reliability and convenience of manual unlocking. The cooperation of the limiting clamping column and the limiting groove limits the rotation range, and avoids mechanical damage caused by excessive rotation.
[0018] 6. The design of the touch block and micro switch provides real-time state feedback, ensuring that the system can accurately detect the position of the dial seat after each unlocking operation is completed. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0020] Figure 1 It is a schematic diagram of the overall structure of the present application.
[0021] Figure 2 It is a schematic diagram of the structure when observing from the other side. Figure 1
[0022] Figure 3 It is a schematic diagram of the structure without the cylinder part. Figure 2
[0023] Figure 4 It is a schematic diagram of the structure of the present application on the basis of removing the cooperating sleeve body and the dial seat. Figure 3
[0024] Figure 5 It is a schematic diagram of the structure of the lock box in the present application.
[0025] Figure 6 It is a schematic diagram of the structure of the present application on the basis of removing the cooperating sleeve body and the dial seat. Figure 4
[0026] Figure 7 It is a schematic diagram of the structure of the lock body in the present application.
[0027] Figure 8 It is a schematic diagram of the structure of the lock cylinder in the present application.
[0028] Figure 9 It is a schematic diagram of the structure of the knob and the dial seat in the present application.
[0029] In the diagram: 10. Lock box; 11. Lock body mounting cylinder; 111. Limiting pin; 112. Lock opening; 12. Rotating slot; 13. Torsion arm seat; 20. Lock body; 201. Lock tongue through-hole; 21. Knob; 211. Drive pin; 22. Lock cylinder; 221. Key inlet; 222. Eccentric pin; 23. Lock tongue; 30. Actuating seat; 301. Drive slot; 302. Contact block; 31. Pull rod connecting seat; 40. Turntable; 41. Mating sleeve; 411. Limiting slot; 51. Cylinder; 52. Mounting plate; 53. Cylinder mounting seat; 54. Connecting plate; 60. Torsion spring; 61. Torsion arm; 7. Micro switch. Detailed Implementation
[0030] The following will refer to the appendix in the embodiments of this utility model. Figures 1-9 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0031] Example:
[0032] like Figures 1 to 9 As shown, this utility model discloses a novel passenger door lock, including a lock box 10, as... Figure 5 As shown, a lock body mounting cylinder 11 is provided in the middle of the lock box 10, and a rotating slot 12 is provided between the lock box 10 and the lock body mounting cylinder 11. A lock body 20 is rotatably mounted inside the lock body mounting cylinder 11. Figure 1 As shown, the front of the lock body 20 is integrally formed with a knob 21 located outside the lock box 10, and a lock cylinder 22 is provided inside the lock body 20. The front of the lock cylinder 22 has a key inlet 221 that penetrates through the knob 21. Figure 8 As shown, a bolt 23 is provided on the rear side of the lock cylinder 22, and as... Figure 6 As shown, a lock slot 112 for inserting the bolt 23 is provided on the lock body mounting cylinder 11. Additionally, as shown... Figures 2-4 As shown, an actuating seat 30 is rotatably mounted on the outside of the lock body mounting cylinder 11. A lever connecting seat 31 is fixedly connected to the actuating seat 30. The lever connecting seat 31 is used to connect the lever of the door lock switch, thereby driving the door to lock or unlock. Additionally, as shown... Figure 6 , 7 As shown in Figure 9, a drive post 211 is integrally formed on the knob 21, passing through the rotation slot 12 to drive the toggle seat 30 to rotate. Figure 2 and Figure 3As shown, a turntable 40 for driving the toggle seat 30 to rotate is provided on the rear side of the toggle seat 30, and a cylinder 51 for driving the toggle seat 30 to rotate is provided inside the lock box 10.
[0033] like Figure 7 As shown, a bolt opening 201 is radially provided on the lock body 20, and the bolt 23 is slidably disposed on the bolt opening 201. Additionally, as shown... Figure 8 As shown, an eccentric post 222 is eccentrically arranged at the rear end of the lock cylinder 22, and the bolt 23 is movably fitted on the eccentric post 222. Therefore, when the lock cylinder 22 is turned by the key, the bolt 23 will slide radially on the bolt opening 201 of the lock body 20. In addition, the lock opening 112 is radially opened on the side wall of the lock body mounting cylinder 11 and corresponds to the bolt opening 201, so as to facilitate the entry of the bolt 23. When the bolt 23 enters the lock opening 112 of the lock body mounting cylinder 11, the lock cylinder 22 and the lock body 20 cannot rotate relative to the lock body mounting cylinder 11, so the knob 21 cannot be turned. Only when the lock cylinder 22 is unlocked and the bolt 23 is removed from the lock opening 112 can the knob 21 be turned.
[0034] When installed on a car door, the turntable 40 is located on the inside of the door, and the knob 21 is located on the outside. This invention can unlock the door by using a cylinder 51 to drive the actuating seat 30, or by directly rotating the turntable 40 to drive the actuating seat 30, or by manually rotating the knob 21 after unlocking the lock cylinder 22 with a key. It should be noted that after the cylinder completes its working stroke, the cylinder's inlet and outlet control valves open to balance the internal pressure, allowing the piston rod to move freely without interfering with the rotation of the turntable or knob. This is prior art and not the subject of this application, therefore it will not be described in detail. This invention improves the system's flexibility and reliability, ensuring safe and convenient unlocking operations under different circumstances.
[0035] Furthermore, such as Figure 9 As shown, the toggle seat 30 has a drive slot 301 on the side facing the knob 21, and the rear end of the drive post 211 slides within the drive slot 301. The design of the drive slot 301 allows the drive post 211 to slide within it, ensuring that even when the latch 23 is locked, the turntable 40 or the cylinder 51 can still rotate the toggle seat 30 without being restricted by the knob 21. This design ensures the independent movement of the toggle seat 30, improving the reliability and flexibility of the system. Figure 2 The state is locked, and the position of drive column 211 is as follows: Figure 9 As shown, when unlocking via turntable 40 or cylinder 51, the actuating seat 30 needs to be moved towards... Figure 2The unlocking icon on the rotating disc 40 rotates in a direction, and the driving column 211 does not interfere with the rotation of the dial seat 30, so even if the knob 21 cannot rotate at this time because the lock tongue 23 is locked with the lock opening 112, it will not hinder the rotation of the dial seat 30. If unlocking is to be performed through the knob 21, the dial seat 30 can be directly driven to unlock when the knob 21 is manually rotated after the lock cylinder 22 is unlocked by the key.
[0036] As shown in Figure 6 , a torsional spring 60 is provided outside the lock body mounting cylinder 11, the torsional spring 60 includes two torsional arms 61, and the driving column 211 is located between the two torsional arms 61, in addition, the lock box 10 is integrally formed with a torsional arm clamping seat 13 on the edge of the rotating slot 12, and the torsional arm clamping seat 13 is also located between the two torsional arms 61, so that after the knob 21 is rotated to lock or unlock, the torsional spring 60 will drive the knob 21 to reset to the state shown in Figure 1 .
[0037] As shown in Figure 4 , a matching sleeve body 41 is fixedly connected to the rotating disc 40, the matching sleeve body 41 is clamped with the dial seat 30, and the matching sleeve body 41 is rotatably connected to the rear end of the lock body 20, in addition, a limiting clamping column 111 is integrally formed on the rear side of the lock body mounting cylinder 11, and a limiting slot 411 is formed in the matching sleeve body 41 for the limiting clamping column 111 to movably fit therein, the design of the matching sleeve body 41 enables the rotating disc 40 to directly drive the dial seat 30 to rotate, ensuring the reliability and convenience of manual unlocking. The cooperation of the limiting clamping column 111 and the limiting slot 411 limits the rotation range, avoiding mechanical damage caused by excessive rotation.
[0038] As shown in Figure 2 and Figure 3 , an installation plate 52 is fixedly connected to the inside of the lock box 10, the installation plate 52 is rotatably connected with a cylinder mounting seat 53, and the cylinder 51 is fixedly installed on the cylinder mounting seat 53, in addition, a connecting plate 54 is fixedly connected to the piston shaft of the cylinder 51, and the other end of the connecting plate 54 is rotatably connected to the dial seat 30, which ensures the stability of the installation of the cylinder 51 and ensures that the cylinder 51 can drive the dial seat 30 to rotate through the extension and retraction of the piston shaft.
[0039] As shown in Figure 2 , two touch blocks 302 are integrally formed on the dial seat 30, and a micro switch 7 is provided inside the lock box 10, the micro switch 7 is provided with two and is respectively arranged on the rotating track of the touch block 302 with the dial seat 30 rotating. The design of the touch block 302 and the micro switch 7 provides real-time state feedback, ensuring that the system can accurately detect the position of the dial seat 30 after each unlocking operation is completed.
[0040] Meanwhile, it needs to be pointed out that the terms indicated by the utility model, such as "front", "rear", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model.
[0041] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A novel passenger door lock, comprising a lock box, characterized in that: The lock box has a lock body mounting cylinder in the middle, and a rotating slot is opened between the lock box and the lock body mounting cylinder. The lock body is rotatably installed inside the lock body mounting cylinder. The front side of the lock body has a knob located outside the lock box. The lock body has a lock cylinder. The front side of the lock cylinder has a key inlet that passes through the knob. The rear side of the lock cylinder has a lock tongue. The lock body mounting cylinder has a lock hole for inserting the lock tongue. The outer side of the lock body mounting cylinder has a toggle seat that is rotatably installed. A pull rod connecting seat is fixedly connected to the toggle seat. The knob has a drive column that passes through the rotating slot to drive the toggle seat to rotate. The rear side of the toggle seat has a turntable for driving it to rotate. The inside of the lock box has a cylinder for driving the toggle seat to rotate.
2. The novel passenger door lock according to claim 1, characterized in that: The lock body has a radially arranged latch through-hole, the latch is slidably disposed on the latch through-hole, the rear end of the lock cylinder has an eccentrically arranged post, the latch is movably fitted on the eccentric post, and the lock opening is radially opened on the side wall of the lock body mounting cylinder and corresponds to the latch through-hole.
3. A novel passenger door lock according to claim 1, characterized in that: The toggle seat has a drive slot on the side facing the knob, and the rear end of the drive column slides and engages within the drive slot.
4. A novel passenger door lock according to claim 1 or 3, characterized in that: A torsion spring is sleeved on the outside of the lock body mounting cylinder. The torsion spring includes two torsion arms. The drive column is located between the two torsion arms. A torsion arm holder is integrally formed on the edge of the rotating slot of the lock box. The torsion arm holder is also located between the two torsion arms.
5. A novel passenger door lock according to claim 1, characterized in that: A mating sleeve is fixedly connected to the turntable. The mating sleeve engages with the actuating seat. The mating sleeve rotates and engages at the rear end of the lock body. A limit pin is integrally formed on the rear side of the lock body mounting cylinder. A limit groove is provided on the mating sleeve for the limit pin to move and engage.
6. A novel passenger door lock according to claim 1, characterized in that: An installation plate is fixedly connected to the inside of the lock box. A cylinder mounting seat is rotatably connected to the installation plate. The cylinder is fixedly installed on the cylinder mounting seat. A connecting plate is fixedly connected to the piston shaft of the cylinder. The other end of the connecting plate is rotatably connected to the actuating seat.
7. A novel passenger door lock according to claim 1, characterized in that: The toggle seat has an integrally formed touch block, and there are two touch blocks. The lock box is provided with two micro switches, which are respectively set on the rotation trajectory of the touch block as it rotates with the toggle seat.