An adjustable locking angle seat belt locking mechanism

Abstract

This utility model discloses an adjustable locking angle seat belt locking mechanism, belonging to the field of seat belt technology. Its key technical features include a locking component and a seat belt body. The locking component includes a mounting shell, and the seat belt body is disposed inside the mounting shell. An angle adjustment component is provided on the surface of the mounting shell. By setting the angle adjustment component, when the operating angle of the locking component needs to be adjusted, the operator can pull the positioning rod, causing it to disengage from the positioning groove against the elastic force of the tension spring. At this time, the mounting shell can rotate freely around the pivot. After adjusting to the appropriate angle, the positioning rod is released, and the tension spring will push the positioning rod into the corresponding positioning groove, achieving precise locking at multiple angles. This can meet the personalized needs of different body types for the seat belt fit angle, ensuring that the seat belt can restrain the occupant's body at the optimal angle during a collision, effectively dispersing the impact force and improving the protective effect.

Description

Technical Field

[0001] This utility model relates to the field of seat belt technology, and in particular to a seat belt locking mechanism with an adjustable locking angle. Background Technology

[0002] Seat belts are an important component of vehicle structure. Their function is to effectively protect the driver and passengers in the event of a collision or other sudden incident while the vehicle is in motion, avoiding or mitigating damage caused by inertia. They are a safety protection device that drivers must use when driving a vehicle, and their usage guidelines have been incorporated into the provisions of traffic regulations.

[0003] Existing seat belts all use elastic retraction devices, which apply a restoring force to the seat belt when it is in use, thereby keeping the seat belt taut and putting pressure on the user's shoulders and chest. Prolonged use can easily cause discomfort to the user and may even cause wear and tear. In addition, existing seat belt locking devices are not easy to adjust according to the thickness of the seat belt, reducing the applicability of the device.

[0004] An existing patent (publication number: CN222372846U) discloses a seat belt locking device. This seat belt locking device facilitates locking of the seat belt by setting an electric telescopic rod, a rack and a gear, and facilitates adjustment of the distance between the upper and lower rollers according to the thickness of the seat belt by setting a motor, a threaded rod and a slider.

[0005] To address the aforementioned issues, existing patents offer solutions. However, the fixed installation angle of these seatbelt locking devices makes them unsuitable for the diverse layouts of seats in different vehicle models, and also fails to meet the personalized needs of passengers of different body types for seatbelt fit angles. Consequently, the seatbelts cannot provide optimal protection during a collision. Secondly, their adjustment function only applies to the seatbelt thickness and lacks dynamic control over the locking force. When the vehicle encounters collisions of varying intensities or sudden braking, the clamping force of the locking rollers on the seatbelt cannot be precisely adjusted, posing a risk of being too tight or too loose.

[0006] To address this, a seatbelt locking mechanism with an adjustable locking angle is proposed. Utility Model Content

[0007] The purpose of this invention is to provide an adjustable seat belt locking mechanism that solves the problems of existing seat belt locking devices having a fixed installation angle, which cannot adapt to the diverse layouts of seats in different car models, nor can it meet the personalized needs of drivers and passengers of different body types for the seat belt fit angle, thus causing the seat belt to fail to provide optimal protection during a collision; secondly, its adjustment function is only for the seat belt thickness and lacks dynamic control of the locking force. When the vehicle encounters collisions of different intensities or sudden braking, it cannot accurately adjust the clamping force of the locking roller on the seat belt, resulting in the risk of it being too tight or too loose.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an adjustable locking angle seat belt locking mechanism, comprising a locking component and a seat belt body, wherein the locking component includes a mounting shell, the seat belt body is disposed inside the mounting shell, and an angle adjustment component is provided on the surface of the mounting shell;

[0009] The angle adjustment assembly includes a U-shaped frame with rotating shafts rotatably connected to both sides inside the U-shaped frame. The side of the rotating shaft closest to the mounting shell is fixedly connected to the mounting shell. A rotating cavity is fixedly connected to the outer side of the rotating shaft. A positioning rod passes through the interior of the rotating cavity, and a fixing block is fixedly sleeved at one end of the positioning rod inside the rotating cavity. A tension spring is sleeved on the surface of the positioning rod and is located inside the rotating cavity. The two ends of the tension spring are fixedly connected to the inner wall of the rotating cavity and the fixing block, respectively. The surface of the U-shaped frame has positioning grooves distributed in a ring. The positioning grooves are used in conjunction with the positioning rod.

[0010] Preferably, the mounting housing has two movable plates inside, arranged symmetrically.

[0011] Preferably, multiple locking rollers are fixedly connected inside each of the two moving plates on opposite sides, and the side of the locking rollers closest to the seat belt body is in close contact with the seat belt body.

[0012] Preferably, the inner wall of the U-shaped frame is provided with grooves on both sides, a bidirectional lead screw is rotatably connected inside the left groove, and a limit rod is fixedly connected inside the right groove.

[0013] Preferably, both ends of the bidirectional lead screw are threaded with nuts, the surface of the limiting rod is slidably connected with a limiting block, and the nuts and limiting blocks are respectively fixedly connected to both sides of the moving plate.

[0014] Preferably, a micro motor is fixedly connected to the front side of the mounting housing and is electrically connected to the vehicle controller, and the output end of the micro motor is fixedly connected to a bidirectional lead screw.

[0015] Preferably, the top of the U-shaped frame has a through hole and the inner wall of the through hole is smoothly polished, and the seat belt body is movably connected inside the through hole.

[0016] Preferably, a connecting plate is fixedly connected to the side of the U-shaped frame away from the rotating cavity, and the connecting plate has a connecting hole inside.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application, by setting an angle adjustment component, allows the operator to pull the positioning rod when the angle of the locking component needs to be adjusted, so that it disengages from the positioning groove against the elastic force of the tension spring. At this time, the mounting shell can rotate freely around the pivot. After adjusting to the appropriate angle, the positioning rod is released, and the tension of the tension spring will push the positioning rod into the corresponding positioning groove, achieving precise locking at multiple angles. This can meet the personalized needs of different body types of drivers and passengers for the seat belt fit angle, ensuring that the seat belt can restrain the body of the driver and passengers at the best angle during a collision, effectively dispersing the impact force of the collision and improving the protection effect.

[0019] 2. This application incorporates a locking assembly electrically connected to the vehicle controller via a micro motor. When a collision or sudden braking occurs, the vehicle controller, based on collision intensity signals from sensors, activates the micro motor. The micro motor drives a bidirectional lead screw, causing the nuts threaded onto both ends of the lead screw and the limit blocks on the limit rod to move synchronously. This, in turn, pushes two moving plates closer or further apart, precisely adjusting the clamping force of multiple locking rollers on the seatbelt. This avoids both excessive locking causing injury to occupants and excessive locking leading to seatbelt restraint failure, achieving dynamic and intelligent locking force control. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the adjustable locking angle seat belt locking mechanism of this utility model;

[0021] Figure 2 This utility model Figure 1 A bottom view;

[0022] Figure 3 This is a schematic diagram of the locking assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the angle adjustment component of this utility model;

[0024] Figure 5 This is a top view of the U-shaped frame of this utility model.

[0025] In the diagram, 1. Locking assembly; 101. Mounting shell; 102. Moving plate; 103. Locking roller; 104. Two-way lead screw; 105. Limiting rod; 106. Nut; 107. Limiting block; 2. Seat belt body; 3. Angle adjustment assembly; 301. U-shaped frame; 302. Rotating shaft; 303. Rotating cavity; 304. Positioning rod; 305. Fixing block; 306. Tension spring; 4. Positioning groove; 5. Groove; 6. Micro motor; 7. Through hole; 8. Connecting plate; 9. Connecting hole. 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] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] An adjustable locking angle seat belt locking mechanism includes a locking component 1 and a seat belt body 2. The locking component 1 includes a mounting shell 101, the seat belt body 2 is disposed inside the mounting shell 101, and an angle adjustment component 3 is disposed on the surface of the mounting shell 101.

[0029] The angle adjustment component 3 includes a U-shaped frame 301, and two sides of the U-shaped frame 301 are rotatably connected to a rotating shaft 302. The side of the rotating shaft 302 closest to the mounting shell 101 is fixedly connected to the mounting shell 101. A rotating cavity 303 is fixedly connected to the outside of the rotating shaft 302. A positioning rod 304 passes through the inside of the rotating cavity 303, and a fixing block 305 is fixedly sleeved at one end of the positioning rod 304 inside the rotating cavity 303. A tension spring 306 is sleeved on the surface of the positioning rod 304 and is located inside the rotating cavity 303. The two ends of the tension spring 306 are fixedly connected to the inner wall of the rotating cavity 303 and the fixing block 305, respectively. A positioning groove 4 is provided on the surface of the U-shaped frame 301, and the positioning groove 4 is distributed in a ring. The positioning groove 4 is used in conjunction with the positioning rod 304.

[0030] In this embodiment: by setting the angle adjustment component 3, the U-shaped frame 301 is the main frame of the angle adjustment component 3, which can provide installation support for other components. The rotating shaft 302 is used to connect the U-shaped frame 301 and the mounting shell 101, so that the mounting shell 101 can rotate around the rotating shaft 302 within the U-shaped frame 301 to achieve angle adjustment. The rotating cavity 303 can rotate synchronously with the rotating shaft 302. The positioning rod 304 and the tension spring 306 are installed inside. The positioning rod 304 can cooperate with the positioning groove 4 on the surface of the U-shaped frame 301 to lock the angle of the mounting shell 101 and position it. The rod 304 can be inserted into the positioning groove 4 of the U-shaped frame 301 to prevent the rotating cavity 303 from rotating and to achieve angle locking. The tension spring 306 can provide positioning driving force. The tension spring 306 generates tension through elastic deformation, which pushes the positioning rod 304 into the positioning groove 4. This can ensure automatic locking after angle adjustment and avoid angle deviation caused by vibration and other factors. The tension spring 306 can always be in a stretched state to maintain the thrust on the positioning rod 304. The positioning groove 4 can cooperate with the positioning rod 304 to provide multiple fixed angle positions, so as to achieve precise adjustment and locking of the angle of the mounting shell 101.

[0031] Specifically, such as Figure 2 , Figure 3 As shown, the mounting housing 101 has two movable plates 102 inside, which are arranged symmetrically.

[0032] Specifically, such as Figure 3 As shown, multiple locking rollers 103 are fixedly connected inside each of the two moving plates 102 on opposite sides, and the side of the locking rollers 103 closest to the seat belt body 2 is in close contact with the seat belt body 2.

[0033] Specifically, such as Figure 3 As shown, grooves 5 are provided on both sides of the inner wall of the U-shaped frame 301. A bidirectional lead screw 104 is rotatably connected inside the left groove 5, and a limit rod 105 is fixedly connected inside the right groove 5.

[0034] Specifically, such as Figure 3 As shown, both ends of the surface of the bidirectional lead screw 104 are threaded with nuts 106, and the surface of the limiting rod 105 is slidably connected with a limiting block 107. The nuts 106 and the limiting block 107 are respectively fixedly connected to both sides of the moving plate 102.

[0035] Specifically, such as Figure 2 As shown, a micro motor 6 is fixedly connected to the front side of the mounting housing 101 and is electrically connected to the car controller. The output end of the micro motor 6 is fixedly connected to the bidirectional lead screw 104.

[0036] In this embodiment: With the above configuration, the movable plate 102 serves as the mounting carrier for the locking roller 103. Symmetrical arrangement allows for clamping or releasing the seatbelt body 2. The locking roller 103 clamps the seatbelt body 2 using friction, achieving a locking function. Multiple locking rollers 103 increase the contact area and improve locking reliability. The bidirectional lead screw 104 converts the rotational motion of the micro motor 6 into the linear motion of the nut 106, with opposite thread directions at both ends, allowing the two nuts 106 to move towards or away from each other. When the two moving plates 102 and the locking rollers 103 move together, the two locking rollers 103 can clamp the seat belt body 2 when they come close to each other. The limiting rod 105 can constrain the movement trajectory of the limiting block 107 and the moving plate 102, ensuring that the moving plate 102 always maintains linear movement. The micro motor 6, as a power source, can drive the bidirectional lead screw 104 to rotate, realize the automatic control of the moving plate 102, and at the same time, can accurately control the bidirectional lead screw 104 according to the vehicle status to realize active locking.

[0037] Specifically, such as Figure 5 As shown, the top of the U-shaped frame 301 has a through hole 7 and the inner wall of the through hole 7 is smoothly polished. The seat belt body 2 is movably connected inside the through hole 7.

[0038] Specifically, such as Figure 1 As shown, a connecting plate 8 is fixedly connected to the side of the U-shaped frame 301 away from the rotating cavity 303, and a connecting hole 9 is provided inside the connecting plate 8.

[0039] In this embodiment: Through the above settings, the through hole 7 can provide a through channel for the seat belt body 2, ensuring that it can pass through the top of the U-shaped frame 301 and connect to the passenger wearing end normally. The smooth grinding treatment of the inner wall of the through hole 7 can reduce the frictional resistance between the seat belt body 2 and the hole wall, avoid damage to the seat belt body 2 caused by friction during long-term use, and improve the smoothness of the seat belt body 2 when stretched. The connecting plate 8 can connect the entire locking mechanism to the vehicle body. Through the connecting hole 9, bolts, screws and other fasteners can be used to install the entire locking mechanism in a designated position in the vehicle, improving the stability of use.

[0040] Working principle: First, the U-shaped frame 301 is fixed to the car body through the connecting hole 9 to ensure a stable installation. Then, the seat belt body 2 passes through the through hole 7 at the top of the U-shaped frame 301 and extends to the passenger wearing end, forming a complete restraint loop. The positioning rod 304 will be engaged in the positioning groove 4 under the action of the tension spring 306. At this time, the mounting shell 101 and the U-shaped frame 301 maintain a fixed angle, ensuring that the initial installation angle of the seat belt body 2 meets the design requirements. When it is necessary to adjust the use angle of the seat belt body 2, the positioning rod 304 is pulled outward, stretching the tension spring 306 to disengage it from the positioning groove 4. At this time, the mounting shell 101 can rotate around the pivot 302 within the U-shaped frame 301 to achieve angle adjustment. After adjusting to the target angle, the positioning rod 304 is released, and the return tension of the tension spring 306 is released. The positioning rod 304 will be pushed into the corresponding positioning groove 4. The ring-shaped positioning groove 4 can achieve multi-angle locking to ensure that the mounting shell 101 is fixed. When the car collides or brakes suddenly, the car controller will send an electrical signal to the micro motor 6. The micro motor 6 will start and drive the bidirectional lead screw 104 to rotate. The nuts 106 at both ends of the bidirectional lead screw 104 will move towards the middle due to the thread transmission. When the two moving plates 102 move relative to each other, the locking roller 103 will fit tightly against the seat belt body 2. The friction force is formed by compression, thereby quickly locking the seat belt body 2 and preventing the passenger from rushing forward. During daily use or normal wearing, the moving plates 102 are in the initial separation state. The locking roller 103 will make slight contact with the seat belt body 2 but does not restrict the pulling, so that the passenger can freely adjust the length of the seat belt body 2.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A seatbelt locking mechanism with an adjustable locking angle, comprising a locking assembly (1) and a seatbelt body (2), characterized in that: The locking assembly (1) includes a mounting shell (101), the seat belt body (2) is disposed inside the mounting shell (101), and an angle adjustment assembly (3) is disposed on the surface of the mounting shell (101); The angle adjustment assembly (3) includes a U-shaped frame (301), and rotating shafts (302) are rotatably connected to both sides of the U-shaped frame (301). The rotating shafts (302) are fixedly connected to the mounting housing (101) on the side near the mounting housing (101). A rotating cavity (303) is fixedly connected to the outer side of the rotating shafts (302). A positioning rod (304) passes through the interior of the rotating cavity (303), and the positioning rod (304) is located inside the rotating cavity (303). A fixing block (305) is fixedly sleeved at one end. A tension spring (306) is sleeved on the surface of the positioning rod (304) and the tension spring (306) is located inside the rotating cavity (303). The two ends of the tension spring (306) are fixedly connected to the inner wall of the rotating cavity (303) and the fixing block (305) respectively. A positioning groove (4) is opened on the surface of the U-shaped frame (301) and the positioning groove (4) is distributed in a ring. The positioning groove (4) is used in conjunction with the positioning rod (304).

2. The adjustable locking angle seat belt locking mechanism according to claim 1, characterized in that: The mounting housing (101) is provided with a movable plate (102) inside, and the number of movable plates (102) is set to two and arranged symmetrically.

3. The adjustable locking angle seat belt locking mechanism according to claim 2, characterized in that: Multiple locking rollers (103) are fixedly connected inside each of the two movable plates (102) on opposite sides. The locking rollers (103) are in close contact with the seat belt body (2) on the side closest to the seat belt body (2).

4. A seatbelt locking mechanism with an adjustable locking angle according to claim 2, characterized in that: The inner wall of the U-shaped frame (301) is provided with grooves (5) on both sides. A two-way lead screw (104) is rotatably connected inside the left groove (5), and a limit rod (105) is fixedly connected inside the right groove (5).

5. A seatbelt locking mechanism with an adjustable locking angle according to claim 4, characterized in that: Both ends of the bidirectional lead screw (104) are threaded with nuts (106), and the surface of the limiting rod (105) is slidably connected with a limiting block (107). The nuts (106) and the limiting block (107) are respectively fixedly connected to both sides of the moving plate (102).

6. A seatbelt locking mechanism with an adjustable locking angle according to claim 4, characterized in that: The front side of the mounting housing (101) is fixedly connected to a micro motor (6) and the micro motor (6) is electrically connected to the vehicle controller. The output end of the micro motor (6) is fixedly connected to a bidirectional lead screw (104).

7. A seatbelt locking mechanism with an adjustable locking angle according to claim 1, characterized in that: The top of the U-shaped frame (301) has a through hole (7) and the inner wall of the through hole (7) is smooth and polished. The seat belt body (2) is movably connected inside the through hole (7).

8. A seatbelt locking mechanism with an adjustable locking angle according to claim 1, characterized in that: A connecting plate (8) is fixedly connected to the side of the U-shaped frame (301) away from the rotating cavity (303), and a connecting hole (9) is provided inside the connecting plate (8).

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