Safety belt quick-release lock capable of achieving automatic unlocking in water immersion or multiple unlocking through light pressing
By introducing a water immersion probe and a motor-driven bevel gear transmission into the seat belt quick-release lock, and combining manual and automatic unlocking methods, the problem of traditional seat belt quick-release locks being unable to be quickly unlocked in an emergency is solved, achieving rapid escape and efficient safety protection in extreme environments.
Patent Information
- Application Number
- CN202521659441.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-06
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2035-08-06
AI Technical Summary
Traditional seat belt quick-release locks cannot be unlocked quickly in an accident, especially in emergency situations such as when the vehicle sinks into water or encounters a violent impact. The driver and passengers may not be able to manually unfasten the seat belts, making it impossible to escape danger quickly.
A seat belt quick-release lock that can be unlocked automatically by immersion in water or with a light press is designed. It uses a water probe to detect the presence of water, and combines a reduction motor and bevel gear transmission to achieve automatic unlocking. It also provides manual rotation and button unlocking methods to ensure that the seat belt can be quickly released in extreme environments.
Ensures that drivers and passengers can quickly release their seat belts in water or special circumstances, reducing the risk of casualties. It provides multiple unlocking methods to deal with different emergency situations, improving safety and reliability.
Smart Images

Figure CN223327457U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safety belt buckles, in particular to a safety belt quick-release lock which is automatically unlocked by immersion in water or by light pressing for multiple unlocking operations. Background Art
[0002] As we all know, airplanes and cars are indispensable means of transportation in modern times, and their safety has always been the focus of people's attention. Seat belts, as basic equipment to ensure the safety of drivers and passengers, play a key role in reducing injuries to drivers and passengers in the event of various emergencies, and can effectively reduce the risk of casualties. Quick-release locks are placed on the human abdomen and are commonly used in four-point, five-point, and six-point seat belts. When worn, the shoulder straps, waist belts, and crotch belts are inserted into the quick-release locks to restrain the body of the driver and passenger. By manually rotating the quick-release lock's cap, the shoulder straps, waist belts, crotch belts and other components connected to the quick-release lock can be simultaneously unlocked, thereby quickly unlocking the seat belt.
[0003] Traditional seat belt quick-release locks are limited to a single unlocking method such as manual rotation, dialing, and pulling. Under normal circumstances, the driver and passenger can apply a certain amount of force to rotate (dial, pull, etc.) the quick-release lock to release the seat belt. When the vehicle falls into the water due to an accident, the vehicle will sink into the water in a short time. At this time, the traditional manual unlocking of the seat belt buckle faces many severe challenges. For example, in an emergency, the driver and passenger may be unable to accurately and forcefully rotate the quick-release lock to unfasten the seat belt due to panic or physical injury. In addition, when the vehicle is subjected to a violent impact, such as a helicopter crashing to the ground or a racing car crashing into a guardrail, the driver and passenger will suffer serious physical injuries after such an impact and may be unable to rotate the quick-release lock to unfasten the seat belt. In this case, the manual rotation unlocking method of the traditional seat belt quick-release lock cannot ensure that the driver and passenger can quickly escape danger. Utility Model Content
[0004] In order to overcome the problem that the existing seat belt quick release lock cannot be quickly unlocked in an accident, the utility model provides a seat belt quick release lock with automatic unlocking by immersion in water and multiple unlocking effects by light pressing.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seat belt quick-release lock that is automatically unlocked by immersion or lightly pressed, comprising a lock body, a rotating cover, the rotating cover being rotatably arranged on one side of the lock body, the outer side of the rotating cover being provided with anti-slip grooves, two sets of water immersion probes, the water immersion probes being arranged inside the rotating cover, a rotating seat, the rotating seat being rotatably arranged inside the lock body, and the rotating seat and the rotating cover being fixedly arranged, rotating the rotating cover can drive the rotating seat to rotate, a reduction motor, the reduction motor being arranged on one side of the rotating seat, a bevel gear, the bevel gear key being connected to the output end of the reduction motor, and a mounting plate, the mounting plate being arranged on Inside the lock body, there is a fixed tooth plate, which is arranged on one side of the mounting plate, and the fixed tooth plate is meshed with the bevel gear. The rotation of the bevel gear will make relative movement with the meshed fixed tooth plate. Since the fixed tooth plate is fixed on the mounting plate, the rotating seat and the lock body will make relative rotation movement. There are multiple sets of locking pins, which are slidably arranged inside the lock body, and the locking pins are used to fix the seat belts. There are multiple sets of elastic elements, which are arranged inside the lock body, and one side of the elastic element is in contact with one side of the locking pin. The elastic element is used to pop out the locking pin, and a pressure block, which is slidably arranged in the lock body, and the pressure block is located between the locking pin and the rotating seat.
[0006] Preferably, a sealing cover is provided on one side of the rotating cover, a button is provided inside the sealing cover, and one side of the button passes through the sealing cover.
[0007] Preferably, a controller and a sensor integrated board are provided inside the rotating cover, and the button is electrically connected to the controller and the sensor integrated board, and the immersion probe is signal-connected to the controller and the sensor integrated board.
[0008] Preferably, a plurality of lock tongue assemblies are clamped inside the lock body, and the lock tongue assembly includes a lock buckle and a safety belt. The lock buckle is clamped in the lock body, and the safety belt is fixedly arranged on a side of the lock buckle away from the lock body.
[0009] Preferably, a lock tongue hole is provided on a side of the lock buckle away from the lock body, and a locking pin is clamped in the lock tongue hole.
[0010] Preferably, the fixed tooth plate is arc-shaped, and the teeth on the top of the fixed tooth plate are matched with the teeth on the outside of the bevel gear.
[0011] Preferably, a plurality of groups of inclined grooves are provided on one side of the rotating seat, and a plurality of groups of top blocks are provided on one side of the pressing block, and the top blocks are clamped in the inclined grooves.
[0012] The beneficial effects of the present invention are:
[0013] The seat belt quick-release lock, which automatically unlocks when immersed in water or with a light click, is equipped with a water probe that can quickly detect the presence of water and respond, ensuring escape efficiency in extreme environments. It ensures that the driver and passengers can get rid of the restraints of the seat belts and escape quickly in water scenes, reducing the risk of casualties. At the same time, the device is equipped with multiple unlocking methods, and the driver and passengers can choose the way to unlock the seat belts in a personalized way. When encountering special circumstances that make it impossible for the driver and passengers to rotate the quick-release lock, they can unlock the quick-release lock by pressing a button, providing more comprehensive and efficient safety protection for the driver and passengers, and avoiding the problem of being unable to unlock quickly in an accident. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a side structural schematic diagram of the utility model.
[0015] Figure 2 This is a structural back view of the lock body of the utility model.
[0016] Figure 3 This is a schematic diagram of the internal structure of the rotary cover of the utility model.
[0017] Figure 4 This is a schematic diagram of the structure of the power supply of the utility model.
[0018] Figure 5 This is a schematic diagram of the internal structure of the lock body of the present utility model.
[0019] Figure 6 This is a structural diagram of the mounting plate of the utility model.
[0020] Figure 7 This is a structural diagram of the fixed tooth plate of the utility model.
[0021] Figure 8 It is a structural schematic diagram of the rotating seat and the pressing block of the utility model.
[0022] Figure 9 It is a structural schematic diagram of the locking pin and the pressing block of the utility model.
[0023] Figure 10 This is a schematic structural diagram of the elastic element of the utility model.
[0024] Figure 11 This is a structural exploded view of the present invention.
[0025] Figure 12 It is a structural sectional view of the present utility model.
[0026] Figure 13 This is the circuit principle diagram of the electric drive part of the utility model.
[0027] In the figure: 1. Sealing cover; 2. Button; 3. Controller and sensor integrated board; 4. Power supply; 5. Immersion probe; 6. Rotating cover; 7. Reducer motor; 8. Rotating seat; 9. Bevel gear; 10. Lock body; 11. Fixed tooth plate; 12. Mounting plate; 13. Locking pin; 14. Elastic element; 15. Pressure block; 20. Lock tongue assembly. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0029] See Figures 1 to 13 A seat belt quick-release lock with automatic or light-press multiple unlocking when immersed in water, comprising a lock body 10, a mounting plate 12 and multiple sets of elastic elements 14 fixedly connected to the interior of the lock body 10, a fixed tooth plate 11 fixedly connected to the top of the mounting plate 12, a pressing block 15 and multiple sets of locking pins 13 slidably connected to the interior of the lock body 10, and one side of the elastic element 14 contacts the bottom of the locking pin 13, the pressing block 15 is slidably connected between the locking pin 13 and the mounting plate 12, and three sets of top blocks are fixedly connected to the top of the pressing block 15, and the top of the top block passes through the mounting plate 12, the lock body 1 0 is rotatably connected to the top of the lock body 10, and a reduction motor 7 is fixedly provided on the top of the reduction motor 7, and a bevel gear 9 is connected to the output end key of the reduction motor 7, and the bevel gear 9 is meshed with the fixed gear plate 11.
[0030] See Figures 7 to 8 The bottom of the rotating seat 8 is fixedly connected with a block 801, which passes through the mounting plate 12, and the middle of the mounting plate 12 is fixedly connected with a fixing pin 1201, which is clamped on the outer side of the block 801. The fixing pin 1201 can prevent the block 801 from detaching from the lock body 10 but can rotate inside the lock body 10, thereby preventing the rotating cover 6 and the rotating seat 8 from detaching from the lock body 10.
[0031] At the same time, three groups of inclined grooves are opened at the bottom of the clamping block 801, and the bottom of the top block is clamped in the inclined grooves. When the clamping block 801 rotates, the top block will be pushed down, and the downward movement of the top block will push the pressing block 15 to move down.
[0032] Multiple groups of lock tongue assemblies 20 are clamped in the lock body 10. The lock tongue assembly 20 includes a lock buckle and a safety belt. The lock buckle is clamped in the lock body 10. The safety belt is fixed on the side of the lock buckle away from the lock body 10. A lock tongue hole is opened on the side of the lock buckle away from the lock body 10, and the locking pin 13 is clamped in the lock tongue hole. The safety belts that cooperate with this device include but are not limited to four-point and five-point safety belts.
[0033] The power supply 4 supplies power to the electronic components in the device, which include a controller and sensor integrated board 3, an immersion probe 5 and a reduction motor 7. The power supply 4 is electrically connected to the controller and sensor integrated board 3, the immersion probe 5 and the reduction motor 7.
[0034] The fixed tooth plate 11 is an arc-shaped plate, and the teeth on its top match the teeth on the outside of the bevel gear 9. In addition to using the bevel gear 9 as the transmission mechanism, the device can also use a worm gear, a cam, a rope, etc. as a transmission method.
[0035] A water immersion sensor is provided inside the controller and sensor integrated board 3 , and the water immersion sensor is signal-connected to the water immersion probe 5 . The water immersion sensor can be replaced by a resistive water immersion sensor, a capacitive water immersion sensor, or an optical water immersion sensor.
[0036] The reduction motor 7 is a waterproof motor, but only the rotating cover 6 needs to be sealed. A non-waterproof motor can also be used. A reduction motor can be used, but a non-reduction motor can also be used to add various reduction mechanisms such as gear transmission, worm gear transmission, etc. to the rotating teeth to achieve the purpose of deceleration.
[0037] In addition to being arranged on the top of the device, the button 2 can also be moved to other locations, such as the side, as required.
[0038] This device has strong reliability. It adds a motor drive on the basis of the original quick-release lock and adopts bevel gear 9 transmission. The transmission performance is stable and reliable. At the same time, it retains the manual rotation unlocking function of the original quick-release lock, fully ensuring the reliability of the quick-release lock.
[0039] At the same time, the water touch response is fast. The water immersion sensor can quickly detect the presence of water and respond, ensuring escape efficiency in extreme environments. It ensures that drivers and passengers can get rid of the restraints of seat belts in the first time in water scenes, escape quickly, and reduce the risk of casualties.
[0040] Moreover, the integrated design allows each component to fit closely together. Based on the original buckle, only the rotating cover 6 needs to be modified and a driving component added to achieve the quick release when encountering water and one-button unlocking functions.
[0041] Finally, the device has multiple unlocking methods, and the driver and passengers can choose the way to unlock the seat belt in a personalized way. When encountering special circumstances that make it impossible for the driver and passengers to rotate the quick release lock, they can unlock the quick release lock by pressing button 2, providing more comprehensive and efficient safety protection for the driver and passengers.
[0042] Working principle: This seat belt quick-release lock with automatic or light-press multiple unlocking functions when immersed in water has three unlocking methods when in use. The first method is manual rotation unlocking. The driver and passenger rotates the rotating cover 6. At this time, the rotating seat 8 rotates along with the rotating cover 6. The block 801 at the bottom of the rotating seat 8 squeezes the pressure block 15 and moves downward. At the same time, the pressure block 15 drives the locking pin 13 to move downward, thereby disengaging the locking pin 13 from the lock tongue hole on the lock buckle. As a result, the lock tongue assembly 20 can be disengaged from the device, completing the manual rotation unlocking.
[0043] The second type of manual button unlocking is that the driver presses the button 2, and the controller and sensor integrated board 3 receives the signal and drives the reduction motor 7 fixed on the rotating seat 8 to work. At this time, the output end of the reduction motor 7 drives the bevel gear 9 to rotate, causing the bevel gear 9 and the meshing fixed tooth plate 11 to move relative to each other. Since the fixed tooth plate 11 is fixed on the mounting plate 12, and the mounting plate 12 is fixed to the lock body 10, the rotating seat 8 and the lock body 10 will rotate relative to each other, and the pressure block 15 in contact with the oblique groove of the card block at the bottom of the rotating seat 8 is forced to move downward, and at the same time drives the locking pin 13 to move downward. The locking pin 13 exits the lock bolt hole, and the lock bolt assembly 20 can be separated from the device to achieve manual button unlocking.
[0044] The third type of automatic unlocking by immersion is that when water reaches the device and contacts the two water immersion probes 5, the controller and sensor integrated board 3 receives the signal and drives the reduction motor 7 fixed on the rotating base 8 to work. At this time, the output end of the reduction motor 7 drives the bevel gear 9 to rotate, causing the bevel gear 9 and the meshing fixed tooth plate 11 to move relative to each other. Since the fixed tooth plate 11 is fixed on the mounting plate 12, and the mounting plate 12 is fixed to the lock body 10, the rotating base 8 and the lock body 10 will rotate relative to each other, and the pressure block 15 in contact with the oblique groove of the card block at the bottom of the rotating base 8 is forced to move downward, while driving the locking pin 13 to move downward. The locking pin 13 exits the lock bolt hole, and the lock bolt assembly 20 can be separated from the device, realizing the automatic unlocking function by immersion.
[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A seat belt quick release lock that can be automatically unlocked by immersion in water or by lightly pressing multiple times, characterized in that: include: Lock body (10); A rotating cover (6), the rotating cover (6) being rotatably arranged on one side of the lock body (10); Two sets of immersion probes (5), wherein the immersion probes (5) are arranged inside the rotating cover (6); A rotating seat (8), wherein the rotating seat (8) is rotatably arranged inside the lock body (10), and the rotating seat (8) and the rotating cover (6) are fixedly arranged; A reduction motor (7), wherein the reduction motor (7) is arranged on one side of the rotating seat (8); A bevel gear (9), wherein the bevel gear (9) is key-connected to the output end of the reduction motor (7); A mounting plate (12), the mounting plate (12) being arranged inside the lock body (10); A fixed tooth plate (11), wherein the fixed tooth plate (11) is arranged on one side of the mounting plate (12), and the fixed tooth plate (11) is meshed with the bevel gear (9); A plurality of locking pins (13), wherein the locking pins (13) are slidably arranged inside the lock body (10); Multiple groups of elastic elements (14), wherein the elastic elements (14) are arranged inside the lock body (10), and one side of the elastic elements (14) contacts one side of the locking pin (13); and A pressing block (15) is slidably disposed in the lock body (10), and the pressing block (15) is located between the locking pin (13) and the rotating seat (8).
2. The seat belt quick release lock capable of automatic unlocking by immersion or multiple unlocking by light pressing according to claim 1, characterized in that: A sealing cover (1) is provided on one side of the rotating cover (6), a button (2) is provided inside the sealing cover (1), and one side of the button (2) passes through the sealing cover (1).
3. The seat belt quick release lock capable of automatic unlocking by immersion or multiple unlocking by light pressing according to claim 2, characterized in that: A controller and sensor integrated board (3) is provided inside the rotating cover (6), and the button (2) is electrically connected to the controller and sensor integrated board (3), and the immersion probe (5) is signal-connected to the controller and sensor integrated board (3).
4. The seat belt quick release lock capable of automatic unlocking by immersion or multiple unlocking by light pressing according to claim 1, characterized in that: The lock body (10) is internally clamped with a plurality of lock tongue assemblies (20), the lock tongue assemblies (20) comprising a lock buckle and a safety belt, the lock buckle being clamped in the lock body (10), and the safety belt being fixedly arranged on a side of the lock buckle away from the lock body (10).
5. The seat belt quick release lock capable of automatic unlocking by immersion in water or multiple unlocking by light pressing according to claim 4, characterized in that: A lock tongue hole is provided on a side of the lock buckle away from the lock body (10), and a locking pin (13) is clamped in the lock tongue hole.
6. The seat belt quick release lock capable of automatic unlocking by immersion or multiple unlocking by light pressing according to claim 1, characterized in that: The fixed tooth plate (11) is arc-shaped, and the teeth on the top of the fixed tooth plate (11) are adapted to the teeth on the outside of the bevel gear (9).
7. The seat belt quick release lock capable of automatic unlocking by immersion or multiple unlocking by light pressing according to claim 1, characterized in that: One side of the rotating seat (8) is provided with a plurality of groups of inclined slots, and one side of the pressing block (15) is provided with a plurality of groups of top blocks, and the top blocks are clamped in the inclined slots.