Fixing buckle for automobile safety belt spring bolt

Abstract

The utility model relates to the technical field of automobile parts, in particular to a fixing buckle for a spring bolt of an automobile safety belt, which comprises an assembly part, a fixing part, a fixing part and a fixing part, the assembly part is independently and fixedly arranged, and a supporting shaft is rotatably mounted in a shaft hole of the assembly part; the connecting piece is fixedly installed on the supporting shaft, a hook piece is arranged on the connecting piece, and the hook piece is used for being matched with an inner hole of the spring bolt for fixation; one end of the coil spring is fixedly mounted on the supporting shaft, and the other end of the coil spring is fixedly mounted on the inner cavity wall of the assembly part; the driving mechanism is installed in the inner cavity of the assembly part, the driving mechanism is connected with the supporting shaft in a matched mode, and the driving mechanism is used for controlling the hook part to be separated from the inner hole of the spring bolt; the retreating mechanism is mounted in the inner cavity of the assembly part and used for pushing the spring bolt out of the inner cavity of the assembly part after the hook part is separated from the spring bolt; the mounting mechanism is mounted on the assembly part, and the mounting mechanism is used for mounting the assembly part and the automobile in a matched manner; the device is simple in structure and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts, and in particular to a fixing buckle for automotive seat belt latches. Background Technology

[0002] As a crucial component of a vehicle's passive safety system, seat belts play a vital role in protecting occupants in traffic accidents. Traditional seat belt systems primarily consist of webbing, a retractor, a buckle, and a latch. Among these, the reliable connection between the latch and the buckle is one of the key factors ensuring the proper functioning of the entire seat belt system.

[0003] For example, some existing locking mechanisms may not be able to unlock quickly in an emergency, increasing the risk of injury to people in an accident. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a simple and easy-to-operate fixing buckle for car seat belt locking tongue.

[0005] This utility model discloses a fixing buckle for a car seat belt latch, comprising:

[0006] The assembly is independently and fixedly installed, and a support shaft is rotatably installed in the shaft hole of the assembly;

[0007] The connector is fixedly installed on the support shaft, and the connector is provided with a hook, which is used to engage with the inner hole of the lock tongue for fixation;

[0008] A coil spring, one end of which is fixedly mounted on the support shaft, and the other end of which is fixedly mounted on the inner wall of the assembly;

[0009] The drive mechanism is installed in the inner cavity of the assembly. The drive mechanism is connected to the support shaft and is used to control the disengagement of the hook and the inner hole of the lock tongue.

[0010] The ejection mechanism is installed in the inner cavity of the assembly. The ejection mechanism is used to push the latch out of the inner cavity of the assembly after the hook part is disengaged from the latch.

[0011] The mounting mechanism is installed on the assembly and is used to mate the assembly with the vehicle.

[0012] Furthermore, the drive mechanism includes:

[0013] The movable component is installed in the inner cavity of the assembly, and the movement trajectory of the movable component is set perpendicular to the rotation axis of the support shaft.

[0014] A rack and pinion is fixedly mounted on a moving part, and the rack and pinion are slidably connected to the inner cavity wall of the assembly.

[0015] The transmission gear is coaxially fixedly mounted on the support shaft, and the spur rack meshes with the transmission gear.

[0016] As a preferred option, return service providers include:

[0017] The mounting plate is installed in the cavity of the assembly by screws, and the mounting plate is provided with an extension;

[0018] The guide rod is slidably installed in the through hole of the extension, and a connecting plate is provided on the guide rod. After the locking tongue is inserted, it is connected with the connecting plate.

[0019] The spring is mounted on the connecting plate at one end and on the extension at the other end.

[0020] Furthermore, a limiter is provided on the guide rod to limit the range of motion of the connecting plate.

[0021] Preferably, the extension is provided with a guide post, and the groove of the guide post and the mounting plate is chamfered. The distance between the guide post and the mounting plate is used to position the bolt insertion trajectory.

[0022] Furthermore, the mounting plate is provided with at least two extensions, and multiple guide rods on multiple extensions are all mounted on the same connecting plate.

[0023] As a preferred option, the installation mechanism includes:

[0024] The fastener is designed to be plugged into and plugged into the mounting slots provided in the assembly parts, and the fastener is also provided with assembly holes for installation with the vehicle.

[0025] Bolts are used to connect to threaded through holes in assemblies, and the bolts pass through slots in the fasteners.

[0026] Furthermore, the assembly is wrapped with a protective sleeve.

[0027] This design utilizes a fixing buckle for automotive seatbelt latches. The assembly serves as a foundational support, providing a stable mounting base for internal components. A support shaft, rotatably mounted within its shaft hole, ensures the flexible rotation of the connector and hook, enabling locking and unlocking of the latch. The hook on the connector features a beveled structure, facilitating automatic alignment with the inner hole when the latch is inserted. Combined with the tension of a coil spring, it maintains a stable locked state even without external force, effectively preventing accidental latch disengagement and ensuring passenger safety. A drive mechanism, installed within the assembly's cavity, precisely controls the hook's rotation and disengagement from the latch's inner hole in conjunction with the support shaft. This provides convenient and rapid operation, meeting emergency unlocking needs. A disengagement mechanism promptly activates after the hook disengages, pushing the latch out of the assembly's cavity, ensuring complete release and preventing jamming. The mounting mechanism allows the assembly to be securely integrated into vehicle seats and other locations, enhancing the connection strength between the fixing buckle and the vehicle structure. This comprehensive approach ensures the stability and reliability of the automotive seatbelt system, providing a solid guarantee for occupant safety. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a fixing buckle for a car seat belt latch at a first angle in this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of a car seat belt locking tongue fixing buckle under the omitted protective cover in this utility model;

[0030] Figure 3 This is a schematic diagram of the retraction mechanism of a fixing buckle for a car seat belt latch in this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of a car seat belt locking tongue fixing buckle under the omitted assembly parts in this utility model;

[0032] Figure 5 This is a schematic diagram of the drive mechanism structure of a fixing buckle for a car seat belt latch in this utility model;

[0033] Figure 6 This is a schematic diagram of the connecting part and hook part of the fixing buckle for the locking tongue of an automobile seat belt in this utility model;

[0034] The following components are labeled in the attached diagram: 1. Assembly part; 2. Support shaft; 3. Connector; 4. Hook; 5. Coil spring; 6. Drive mechanism; 61. Moving part; 62. Spur rack; 63. Transmission gear; 7. Part ejection mechanism; 71. Mounting plate; 72. Screw; 73. Extension; 74. Guide rod; 75. Connecting plate; 76. Spring; 77. Limiting part; 78. Guide post; 8. Mounting mechanism; 81. Fixing part; 82. Bolt; 9. Protective sleeve. Detailed Implementation

[0035] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0036] This utility model relates to a fixing buckle for a car seat belt latch, such as... Figures 1 to 6 As shown, it includes:

[0037] Assembly 1, as the basic support part of the entire device, is independently fixed, and a support shaft 2 is rotatably installed in the shaft hole of assembly 1;

[0038] The connector 3 is fixedly installed on the support shaft 2, and the connector 3 is provided with a hook 4. The hook 4 is used to cooperate with the inner hole of the lock tongue for fixation. The hook 4 is set with a bevel structure at the insertion end of the lock tongue.

[0039] The coil spring 5 is fixedly installed on the support shaft 2 at one end and fixedly installed on the inner wall of the assembly 1 at the other end. The function of the coil spring 5 is to keep the hook 4 locked to the lock tongue when no external force is applied.

[0040] The drive mechanism 6 is installed in the inner cavity of the assembly 1. The drive mechanism 6 is connected to the support shaft 2. The drive mechanism 6 is used to control the disengagement of the hook part 4 from the inner hole of the lock tongue.

[0041] The ejection mechanism 7 is installed in the inner cavity of the assembly 1. The ejection mechanism 7 is used to push the lock tongue out of the inner cavity of the assembly 1 after the hook part 4 is disengaged from the lock tongue, thereby completing the release process of the lock tongue.

[0042] Mounting mechanism 8 is installed on assembly 1. Mounting mechanism 8 is used to install assembly 1 with the car to ensure that the entire fixing buckle system can be securely integrated into the car seat or other designated position.

[0043] The working principle of this device is as follows:

[0044] When there is no external operation, the hook 4 is engaged with the inner hole of the latch, and the coil spring 5 provides the necessary tension to maintain this locked state. When unlocking is required, the drive mechanism 6 drives the support shaft 2 and the connected connector 3 and hook 4 to rotate, thereby disengaging the hook 4 from the inner hole of the latch. Once the hook 4 is disengaged from the inner hole of the latch, the ejection mechanism 7 immediately activates, pushing the latch away from the inner cavity of the assembly 1, thus achieving complete release of the latch. During this process, the coil spring 5 stores energy and automatically drives the support shaft 2 and its components back to the initial position after the external force is removed, ready for the next locking operation.

[0045] As a basic support, Assembly 1 provides a stable mounting base for internal components. The support shaft 2, which is rotatably mounted in its shaft hole, ensures that Connector 3 and Hook 4 can rotate flexibly to achieve locking and unlocking of the latch. The hook 4 on Connector 3 adopts a beveled structure, which facilitates automatic guidance and alignment of the latch with the inner hole when it is inserted. With the tension of the coil spring 5, it can maintain a stable locked state when there is no external force, effectively preventing the latch from accidentally disengaging and ensuring passenger safety. The drive mechanism 6 is installed in the inner cavity of Assembly 1. Through cooperation with the support shaft 2, it can precisely control the rotation of Hook 4 to disengage from the inner hole of the latch. It is convenient to operate and responds quickly to meet emergency unlocking needs. The ejection mechanism 7 acts in time after Hook 4 disengages, pushing the latch out of the inner cavity of Assembly 1 to ensure that the latch is completely released and avoid jamming. The installation mechanism 8 enables Assembly 1 to be stably integrated into the car seat and other positions, enhancing the connection strength between the fixing buckle and the car structure, and comprehensively ensuring the stability and reliability of the car seat belt system, providing a solid guarantee for occupant safety.

[0046] As a preferred option, such as Figures 1 to 5 As shown, the drive mechanism 6 includes:

[0047] The movable part 61 is installed in the inner cavity of the assembly 1, and the moving trajectory of the movable part 61 is set perpendicular to the rotation axis of the support shaft 2.

[0048] A rack 62 is fixedly mounted on the movable part 61, and the rack 62 is slidably connected to the inner cavity wall of the assembly 1.

[0049] The transmission gear 63 is coaxially fixedly mounted on the support shaft 2, and the spur rack 62 is meshed with the transmission gear 63.

[0050] The movable component 61 is installed in the inner cavity of the assembly 1 and its movement trajectory is perpendicular to the rotation axis of the support shaft 2, ensuring that its linear motion can be accurately converted into the rotational motion of the support shaft 2. The rack 62 fixed to the movable component 61 is slidably connected to the inner cavity wall of the assembly 1, providing a smooth driving force through linear sliding. It meshes with the transmission gear 63 coaxially fixed on the support shaft 2. Utilizing the high transmission efficiency and precision of the rack and pinion transmission, the linear motion of the movable component 61 is synchronously converted into the rotation of the support shaft 2, thereby driving the hook component 4 to disengage from the inner hole of the lock tongue. This structure is compact, with no idle gap in the transmission process, and the unlocking operation is responsive and the force is uniform. It can ensure the reliability of rapid unlocking in emergency situations and avoid misoperation through the stability of mechanical transmission.

[0051] As a preferred option, such as Figures 3 to 4 As shown, the return mechanism 7 includes:

[0052] Mounting plate 71 is installed in the inner cavity of assembly 1 by screws 72, and an extension 73 is provided on mounting plate 71;

[0053] The guide rod 74 is slidably installed in the through hole of the extension 73, and a connecting plate 75 is provided on the guide rod 74. After the locking tongue is inserted, it is connected with the connecting plate 75.

[0054] Spring 76, one end is mounted on connecting plate 75, and the other end is mounted on extension 73;

[0055] At least two extensions 73 are provided on the mounting plate 71, and multiple guide rods 74 on the multiple extensions 73 are all mounted on the same connecting plate 75;

[0056] Mounting plate 71 is fixed to the inner cavity of assembly 1 by screws 72, providing a stable mounting base for extension 73. Guide rod 74 on extension 73 is slidably installed in through hole, providing precise guidance for connecting plate 75, preventing it from shifting or jamming during movement, and ensuring smooth release of the latch. After the latch is inserted, it cooperates with connecting plate 75. The elastic force of spring 76 acts on connecting plate 75. When hook 4 is disengaged from latch, spring 76 releases elastic potential energy, pushing connecting plate 75 to move latch quickly out of the inner cavity of assembly 1, realizing automatic latch extension without additional driving force. The structure is simple and responsive. At least two extensions 73 and corresponding guide rods 74 on mounting plate 71 act together on the same connecting plate 75, forming a multi-point support structure, evenly distributing the thrust on latch, and preventing latch from tilting or jamming due to uneven force during release.

[0057] As a preferred option, such as Figures 3 to 4 As shown, a limiting member 77 is provided on the guide rod 74, which is used to limit the range of motion of the connecting plate 75;

[0058] The limiting member 77 limits the range of motion of the connecting plate 75, preventing it from moving excessively under the action of the spring 76. This avoids the bolt from colliding with the assembly 1 due to excessive impact force when it is pushed out, or the guide rod 74 from disengaging from the through hole of the extension member 73, causing structural failure.

[0059] As a preferred option, such as Figures 3 to 4 As shown, the extension 73 is provided with a guide post 78, and the guide post 78 and the groove of the mounting plate 71 are chamfered. The distance between the guide post 78 and the mounting plate 71 is used to position the bolt insertion trajectory.

[0060] The guide post 78 precisely positions the insertion trajectory of the latch by limiting the distance between the latch and the mounting plate 71, ensuring that the latch can accurately enter the inner cavity of the assembly 1 along the preset path. This avoids the hook 4 and the inner hole of the latch not fitting properly due to the insertion angle deviation. The chamfer design at the groove reduces the frictional resistance when the latch is inserted, allowing it to push the connecting plate 75 to compress the spring 76 more smoothly. At the same time, it avoids the edge of the latch from hardly colliding with the mounting plate 71, which would cause wear or jamming.

[0061] As a preferred option, such as Figures 1 to 2 As shown, the mounting mechanism 8 includes:

[0062] The fastener 81 is plugged into and connected to the mounting slot reserved in the assembly 1, and the fastener 81 is provided with an assembly hole for installation with the car.

[0063] Bolt 82 is connected to the threaded through hole of assembly 1, and bolt 82 passes through the slot of fastener 81;

[0064] The fastener 81 is plugged into the mounting slot of the assembly 1 for quick positioning and initial fixation. Its built-in assembly hole can accurately align with the preset holes on the car seat or other installation positions, ensuring the installation accuracy of the fastener and the car structure. The bolt 82 passes through the hole slot of the fastener 81 and engages with the threaded through hole of the assembly 1. The strong fastening force of the threaded connection firmly locks the fastener 81 and the assembly 1, effectively preventing the fastener from loosening due to vibration during vehicle operation and ensuring the overall stability of the seat belt system.

[0065] As a preferred option, such as Figure 1 As shown, assembly 1 is covered with a protective sleeve 9.

[0066] The elastic properties of the protective sleeve 9 can also absorb some of the impact force, reduce the damage to the assembly 1 caused by accidental collisions, and improve the impact resistance of the fastener. In addition, the protective sleeve 9 is customized according to the shape of the assembly 1 to ensure a tight fit and maintain the overall aesthetics of the fastener.

[0067] The present invention relates to a fixing buckle for a car seat belt latch. Its installation method, connection method, or setting method are all common mechanical methods. As long as it can achieve its beneficial effect, it can be implemented.

[0068] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A fixing buckle for a car seatbelt latch, characterized in that, include: Assembly (1) is independently fixed, and a support shaft (2) is rotatably installed in the shaft hole of the assembly (1). The connector (3) is fixedly installed on the support shaft (2), and the connector (3) is provided with a hook (4), which is used to cooperate with the inner hole of the lock tongue for fixing; A coil spring (5) is fixedly installed at one end on the support shaft (2) and at the other end on the inner wall of the assembly (1); The drive mechanism (6) is installed in the inner cavity of the assembly (1). The drive mechanism (6) is connected to the support shaft (2). The drive mechanism (6) is used to control the disengagement of the hook (4) from the inner hole of the lock tongue. The ejection mechanism (7) is installed in the inner cavity of the assembly (1). The ejection mechanism (7) is used to push the latch out of the inner cavity of the assembly (1) after the hook (4) is disengaged from the latch. The mounting mechanism (8) is installed on the assembly (1) and is used for the assembly (1) to be installed in conjunction with the vehicle.

2. The fixing buckle for the car seat belt locking tongue as described in claim 1, characterized in that, The drive mechanism (6) includes: The movable part (61) is installed in the inner cavity of the assembly (1), and the movement trajectory of the movable part (61) is perpendicular to the rotation axis of the support shaft (2); A rack (62) is fixedly installed on the movable part (61), and the rack (62) is slidably connected to the inner wall of the assembly (1); The transmission gear (63) is coaxially fixedly installed on the support shaft (2), and the spur rack (62) meshes with the transmission gear (63).

3. The fixing buckle for the car seat belt locking tongue as described in claim 1, characterized in that, The return mechanism (7) includes: Mounting plate (71) is installed in the cavity of the assembly (1) by screws (72), and an extension (73) is provided on the mounting plate (71). The guide rod (74) is slidably installed in the through hole of the extension (73), and a connecting plate (75) is provided on the guide rod (74). After the locking tongue is inserted, it cooperates with the connecting plate (75) to connect. The spring (76) is mounted on the connecting plate (75) at one end and on the extension (73) at the other end.

4. The fixing buckle for the car seat belt locking tongue as described in claim 3, characterized in that, The guide rod (74) is provided with a limiting member (77), which is used to limit the range of motion of the connecting plate (75).

5. The fixing buckle for the car seat belt locking tongue as described in claim 3, characterized in that, The extension (73) is provided with a guide post (78), and the guide post (78) and the groove of the mounting plate (71) are provided with chamfers. The distance between the guide post (78) and the mounting plate (71) is used to position the insertion trajectory of the lock tongue.

6. The fixing buckle for the car seat belt locking tongue as described in claim 3, characterized in that, At least two extensions (73) are provided on the mounting plate (71), and multiple guide rods (74) on multiple extensions (73) are all mounted on the same connecting plate (75).

7. The fixing buckle for the car seat belt locking tongue as described in claim 1, characterized in that, The installation mechanism (8) includes: The fastener (81) is plugged into and connected to the mounting slot reserved in the assembly (1), and the fastener (81) is provided with an assembly hole for installation with the car. The bolt (82) engages with the threaded through hole of the assembly (1) and passes through the slot of the fastener (81).

8. The fixing buckle for the car seat belt locking tongue as described in claim 1, characterized in that, The assembly (1) is covered with a protective sleeve (9).

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