Automobile door U-shaped buckle for emergency escape

Abstract

The utility model discloses an automobile door U-shaped buckle for emergency escape. The U-shaped buckle is mainly composed of a U-shaped buckle body, a convex sliding block, a sliding rail, a sliding buckle assembly, a concave limiting position, a sliding connecting position, a tension spring device, a safety bolt assembly and the like. The two ends of the U-shaped buckle body are connected with convex sliding blocks which can slide along sliding rails in the U-shaped buckle body, and concave-convex bite marks on one side of the U-shaped buckle body are matched with concave-convex bite marks on the sliding buckle assembly to achieve locking. Sliding of the sliding buckle assembly is limited by the concave limit and can slide at the sliding connection position, and the tail of the sliding buckle assembly is connected with the tension spring device and movably connected with the safety bolt assembly through the tension spring. The tension spring device comprises a tension spring assembly and a fixing cover, the safety bolt assembly is fixed to the U-shaped lock through the connecting cover, and a bolt of the safety bolt assembly is inserted into a specific limiting position to fix the sliding buckle assembly. All the components work cooperatively, it is guaranteed that the automobile door can be smoothly opened under the emergency situation, the advantages of being scientific in structural design, safe, reliable, convenient to open and the like are achieved, and the reliability of automobile door opening during automobile emergency escape is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive safety equipment technology, specifically to an emergency escape U-shaped latch for car doors, used for locking and unlocking car doors in emergencies, improving the convenience of escape in vehicle emergencies. Background Technology

[0002] During vehicle use, the safety of car doors and ease of escape in emergencies are crucial. Existing car door latches often fail to open properly when doors malfunction or become deformed, trapping occupants and preventing timely escape, posing a significant threat to their lives. For example, in emergencies such as collisions, fires, or submersion, traditional door latches may fail to open due to structural damage or deformation, trapping passengers inside and delaying their best escape opportunity. Therefore, a new type of U-shaped car door latch is needed to solve the problem of doors being difficult to open in emergencies and improve passengers' chances of escape. Summary of the Invention

[0003] The purpose of this utility model is to provide a U-shaped latch for emergency escape of car doors. The overall structure is mainly composed of a U-shaped latch, a convex slider, a sliding track, a sliding latch assembly, a tension spring device, a safety pin assembly, an external pull cable assembly, a push pin, a connecting cover, a fixing cover, and other components. These components work together to realize the locking and emergency unlocking functions of the car door. The aim is to solve the problem that existing car door latches are difficult to open in emergency situations, making it difficult for people inside the car to escape, and to improve the reliability and convenience of opening car doors in emergency situations.

[0004] Technical solution: U-shaped buckle body: The U-shaped buckle has convex sliders connected to both ends, and one side is provided with concave and convex grooves for cooperating with the sliding buckle assembly. Through the convex sliders, the U-shaped buckle can be adapted to the sliding track inside the U-shaped lock body, and slide smoothly along the sliding track inside the U-shaped lock body.

[0005] The U-shaped buckle body has convex sliders directly connected to both ends, and one side has a raised and recessed groove for engaging with the sliding buckle assembly. This raised and recessed groove is an integral part of the U-shaped buckle body. Under normal circumstances, the U-shaped buckle adapts to the sliding track inside the U-shaped lock body through the convex sliders at both ends, allowing it to slide smoothly along the sliding track within the U-shaped lock body. At the same time, the raised and recessed groove on one side of the U-shaped buckle matches the raised and recessed groove on the sliding buckle assembly, achieving the locking function.

[0006] Convex slider: Connected to both ends of the U-shaped buckle, it not only provides support and guidance for the U-shaped buckle to slide within the U-shaped lock body, but also matches the sliding track to form a sliding fit relationship, ensuring that the U-shaped buckle can slide smoothly along the sliding track.

[0007] Sliding track component: Located inside the U-shaped lock body, it cooperates with the convex sliders at both ends of the U-shaped buckle to provide a sliding path for the convex sliders, allowing the U-shaped buckle to slide smoothly inside the U-shaped lock body.

[0008] The sliding latch assembly body is mounted on the sliding connection position of the latch body, allowing it to slide within this position. The sliding connection position provides sliding space for it. Simultaneously, its sliding range is precisely limited by the concave limit on the U-shaped lock body, ensuring that the sliding latch assembly slides within a reasonable stroke. The sliding latch assembly has concave and convex grooves that match the grooves on one side of the U-shaped latch, enabling it to lock with the U-shaped latch.

[0009] Tension spring connection: The sliding buckle assembly is connected to the tension spring device at its tail. After the safety pin is released, the tension spring assembly in the tension spring device uses its elastic restoring force to pull the sliding buckle assembly away from the locking position of the U-shaped buckle. The tension spring device also includes a fixing cover, which is used to fix the tension spring and ensure the stability of the tension spring device.

[0010] Safety pin assembly connection: The safety pin assembly is connected to the sliding buckle assembly via a tension spring hook, and the pin can be inserted into the concave safety limit on the lower side of the sliding buckle assembly and the concave safety pin limit on the buckle body, thereby fixing the sliding buckle assembly and preventing it from sliding accidentally.

[0011] Tension spring assembly: This is the core component of the tension spring device. It is connected to the tail of the sliding buckle assembly. In an emergency, when the safety pin is released, the tension spring assembly provides elastic tension, pulling the sliding buckle assembly out of the locking position of the U-shaped buckle.

[0012] Fixing cap: Used to secure the tension spring in the tension spring assembly, preventing it from shifting and ensuring the proper functioning of the tension spring assembly. The fixing cap has a round hole through which the ejector pin passes.

[0013] The safety pin assembly body is fixed to the U-lock via a connecting cover. The pin can simultaneously insert into the concave safety limit position on the lower side of the sliding latch assembly and the concave safety pin limit position on the latch body. Under normal conditions, it fixes the sliding latch assembly, ensuring the stability of the door lock. In an emergency, occupants can operate the external pull cable assembly to pull out the pin of the safety pin assembly and release the safety pin.

[0014] External cable assembly: When a car door malfunctions or becomes deformed and cannot be opened, occupants can operate the external cable assembly to pull out the pin of the safety latch assembly, releasing the safety latch. This allows the tension spring assembly to function, pulling the sliding latch assembly away from the locking position of the U-shaped buckle, thus enabling emergency unlocking of the car door.

[0015] Ejector pin assembly: The ejector pin, through the tension spring, fixes the round hole in the middle of the cover assembly, and pushes the sliding buckle assembly to the position that matches the concave and convex bite marks on one side of the U-shaped buckle, ensuring that the U-shaped buckle and the sliding buckle assembly can be accurately locked under normal circumstances.

[0016] A U-shaped car door latch for emergency escape offers several advantages: Rapid unlocking via an innovative design that links the external cable to the safety pin. In emergencies where the normal door unlocking system malfunctions, occupants can quickly pull the safety pin by operating the external cable, releasing the sliding latch. Compared to the complex and prone-to-failure unlocking methods of traditional latches in emergencies, this significantly shortens escape time. For example, in cases where a collision deforms the door, traditional latches are prone to jamming, but this U-shaped latch bypasses the conventional process, unlocking quickly and automatically disengaging. During an emergency escape, the tension spring mechanism plays a crucial role; once the safety pin is released, the strong elasticity of the spring immediately pulls the sliding latch away from its locked position, eliminating the need for manually prying open complex locking structures, allowing the door to unlock rapidly and increasing the escape success rate. Secure locking is also ensured: the U-shaped latch and the sliding latch are tightly locked together with matching interlocking grooves, increasing stability. Even during driving, bumps and collisions prevent the door from opening accidentally. Compared to ordinary latches that simply snap together, its convex and concave grooves provide greater friction and gripping force, ensuring the door remains tightly closed. The safety pin assembly inserts into the concave limit of the sliding latch and the latch body, with force evenly distributed from both top and bottom, resulting in a more secure fixation. Even under strong impact, it maintains the door's lock, ensuring the safety of occupants. Operation is simple: emergency escape is straightforward; pulling the external cable releases the safety pin and unlocks the door. Even the elderly, children, or panicked individuals can easily operate it, reducing the risk of escape failure due to complex operations. Daily convenience: in daily use, locking and unlocking the door is similar to traditional latches, requiring no additional effort. A push pin, working with a round hole, pushes the sliding latch back to the locked position, making relocking easy and convenient. Wide compatibility: the structural design fully considers the characteristics of different car doors and installation requirements, offering strong versatility. It can be installed on sedans, SUVs, MPVs, and other models, with a broad market prospect, providing safety assurance for more users. Easy installation and maintenance: the components are rationally designed, and the installation steps are clear, requiring no special tools or techniques for installation. The structure is simple, and the components are easy to disassemble and replace, reducing maintenance costs and difficulties and extending product life. Attached Figure Description

[0017] Figure 1 The overall structural diagram shows the full view of the U-shaped buckle on the car door for emergency escape, including the positional relationship of the main components such as the U-shaped buckle, the sliding buckle assembly, and the tension spring device.

[0018] Figure 2 The diagram shows the connection between the safety pin assembly and the sliding buckle assembly, illustrating the dynamic connection between the safety pin assembly and the sliding buckle assembly via a tension spring, and the state of the pin being inserted into the concave safety limit position.

[0019] Figure 3 : A schematic diagram of the connection between the U-shaped buckle and the convex slider, showing how the two ends of the U-shaped buckle are connected to the convex slider.

[0020] Figure 4 A schematic diagram showing the relationship between the sliding buckle assembly, the concave limit, and the sliding connection position, illustrating the sliding of the sliding buckle assembly at the sliding connection position and the situation where it is restricted by the concave limit.

[0021] Additional notes: The connection structure between the sliding buckle assembly and the tension spring device, the structure of the lower transparent buckle assembly and the pin assembly locking the transparent buckle body, and the cooperation structure of the U-shaped buckle sliding and the tension spring assembly pulling back the buckle assembly when the pin of the buckle body is released are all extended schematic diagrams of the attached drawings, which together with the above-mentioned attached drawings constitute a complete structural display. Detailed Implementation

[0022] When installing and operating the specific implementation method, the preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. The following steps are performed: Install the sliding rail: Install the sliding rail (5) inside the buckle body (18), use appropriate tools to ensure a stable installation and ensure accurate positioning. Its function is to provide a reliable path for the subsequent sliding of the U-shaped buckle (2).

[0023] Install the U-shaped buckle: Align the convex sliders at both ends of the U-shaped buckle (2) with the sliding track (5), and slowly install the U-shaped buckle (2) into the body of the U-lock. During the installation process, check whether the U-shaped buckle (2) can slide smoothly along the sliding track (5). If there is any jamming, adjust it in time.

[0024] Install the sliding buckle assembly: Place the sliding buckle assembly (6) on the sliding connection position (8) of the buckle body (18) to ensure that the sliding range of the sliding buckle assembly (6) is accurately limited by the concave limit (8) and that it slides within a reasonable stroke.

[0025] Install the tension spring device: Connect the tension spring device (10) to the tail of the sliding buckle assembly (6), and fix the tension spring assembly (10) with the fixing cover (12). The position of the round hole (13) on the fixing cover (12) should be accurate so that the subsequent operation of the ejector pin (20) can be carried out.

[0026] Install the safety pin assembly: Insert the safety pin assembly into and fix it on the U-shaped body lock pin assembly link hole (17) through the connection hole (17), so that the pin of the safety pin assembly (4) is accurately aligned with the concave safety limit (17) on the lower side of the sliding buckle assembly (6) and the concave safety pin limit (17) of the lock body (18) and inserted, thus completing the fixing of the sliding buckle assembly (6).

[0027] Overall fixation: Using the screw holes (19) on the buckle body (18), the entire U-shaped buckle device is connected and securely fixed to the vehicle body by screws.

[0028] Usage and Operating Instructions: Normal Usage: During normal vehicle use, the convex and concave bite marks on one side of the U-shaped buckle match the convex and concave bite marks on the sliding buckle assembly to lock the door and ensure the stability of the door closure. Emergency Escape Operation: In an emergency, when the normal door unlocking mechanism fails to function, occupants can operate the external pull cable assembly. The external pull cable assembly pulls the safety pin assembly, causing the pin to be pulled out from the concave safety limit on the lower side of the sliding buckle assembly and the concave safety pin limit on the buckle body, releasing the safety pin. At this time, due to the elastic restoring force, the tension spring assembly of the tension spring device pulls the sliding buckle assembly away from the locking position of the U-shaped buckle, allowing occupants to push the door for emergency escape. Relocking Operation: If, after an emergency escape or in other situations requiring relocking, a pin is used to pass through the round hole in the middle of the tension spring fixing cover to push the sliding buckle assembly back to the position where it matches the convex and concave bite marks on one side of the U-shaped buckle, thus relocking the door.

[0029] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. An emergency escape automobile door U-buckle, characterized by, The utility model provides a U-shaped lock body, U-shaped buckle, convex slide block, sliding rail and sliding buckle assembly, the U-shaped buckle two ends connect the convex slide block, the U-shaped buckle one side is provided with concave-convex bite mark, the U-shaped buckle passes through the convex slide block of two ends with the sliding rail adaptation, can slide along the sliding rail in the U-shaped lock body, the concave-convex bite mark of U-shaped buckle one side with the concave-convex bite mark on the sliding buckle assembly matches, the convex slide block with the sliding rail sliding fit, provides support and direction for the U-shaped buckle sliding in the U-shaped lock body, the sliding rail sets up in the U-shaped lock body, with the convex slide block adaptation, is the sliding path of convex slide block, the sliding of sliding buckle assembly is limited by the concave limit on the U-shaped lock body, and can slide on the sliding connection position of lock catch body, sliding buckle assembly tail connects tension spring device, the downside of sliding buckle assembly is provided with concave safety limit, sliding buckle assembly passes through tension spring and safety bolt assembly motion connection, sliding buckle assembly is provided with the concave-convex bite mark on one side with the concave-convex bite mark of U-shaped buckle one side matches.

2. The U-shaped buckle for emergency escape of a vehicle door according to claim 1, wherein The tension spring device includes a tension spring assembly and a fixed cover. The tension spring assembly is connected to the tail of the sliding buckle assembly. The fixed cover is used for fixing the tension spring assembly, and a circular hole is arranged in the middle of the fixed cover.

3. The U-shaped buckle for emergency escape of a vehicle door according to claim 2, wherein The safety bolt assembly can be inserted into the concave safety limit on the downside of the sliding buckle assembly and the concave safety bolt limit of the lock catch body.

4. The U-shaped buckle for emergency escape of a vehicle door according to claim 1, wherein The concave limit is arranged on the U-shaped lock body and is used for limiting the sliding range of the sliding buckle assembly.

5. The U-shaped buckle for emergency escape of a vehicle door according to claim 1, wherein The sliding connection position is arranged on the lock catch body and provides a sliding space for the sliding buckle assembly.

6. The U-shaped buckle for emergency escape of a vehicle door according to claim 1, wherein The concave-convex bite mark is arranged on the sliding buckle assembly and matches the concave-convex bite mark on one side of the U-shaped buckle, so as to realize the locking function.

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