Automobile safety belt tightening device in emergency

Abstract

The utility model discloses an emergency automobile safety belt tightening device, which belongs to the technical field of automobile safety and comprises a square shell, a through groove is formed in the inner side wall of the square shell, a winding component is rotatably connected in the through groove, one end of the winding component is fixedly connected with a positioning component, and the other end of the winding component is fixedly connected with a locking component. Circular shells are fixedly connected to the two sides of the square shell, an annular groove is formed in the inner side wall of the circular shell on one side, and a buffering assembly is rotationally connected into the annular groove; through the arranged positioning assembly, when collision occurs, a clamping ball inclines, a second spring pulls a sliding block to drive the clamping ball to be separated from a limiting groove, a clamping plate rapidly moves towards one end of the clamping plate, teeth matched with a gear ring are arranged at one end of the clamping plate, the teeth are connected with the gear ring in a clamped mode, a fixing disc is limited and fixed, and therefore rotation of a rotating rod is limited; the length of the safety belt is fixed, the device can respond to collision in time, and the passenger is prevented from moving forwards excessively in the collision process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile safety, and specifically relates to an emergency automobile safety belt tightening device. BACKGROUND

[0002] Automobile safety belts are important components of vehicle safety systems, mainly reducing injury risk by limiting the movement of occupants during a collision. Common types include three-point belts, two-point belts, and four-point and five-point belts for racing cars. In the event of a severe collision, the safety belt will be stretched due to the huge inertia, and the occupant is likely to hit the steering wheel or instrument panel, causing secondary injury and poor safety protection effect. The safety belt tightening device can automatically tighten during a collision, providing additional protection and improving safety protection effect.

[0003] However, the safety belt tightening device in the prior art relies on sensors to detect the occurrence of a collision in a timely manner. When the collision occurs very quickly or is complex, it is more susceptible to electronic component failure, interference or system failure, which may prevent the sensor from reacting within the optimal time, resulting in reduced protection effect.

[0004] Therefore, the utility model provides an emergency automobile safety belt tightening device to solve the above problems. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] The utility model provides an emergency automobile safety belt tightening device, aiming to solve the problem of the safety belt tightening device in the prior art relying on sensors to detect the occurrence of a collision in a timely manner, which is more susceptible to electronic component failure, interference or system failure when the collision occurs very quickly or is complex, which may prevent the sensor from reacting within the optimal time, resulting in reduced protection effect.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model provides the following technical scheme: a square shell, a through slot is formed in the inner side wall of the square shell, a winding assembly is rotatably connected inside the through slot, one end of the winding assembly is fixedly connected with a positioning assembly, both sides of the square shell are fixedly connected with a circular shell, an annular groove is formed in the inner side wall of one side of the circular shell, a buffer assembly is rotatably connected inside the annular groove;

[0009] The positioning assembly comprises a fixed disc, one side of the fixed disc is fixedly connected to one end of the winding assembly, a limiting groove is formed in the other side of the fixed disc, a clamping ball is clamped in the limiting groove, a first spring is fixedly connected to one side of the outer surface of the clamping ball, a sliding block is fixedly connected to one end of the first spring, a second spring is fixedly connected to one side of the outer surface of the sliding block, a clamping plate is fixedly connected to one end of the sliding block, and a control rod is fixedly connected to one side of the clamping plate.

[0010] As a preferred technical solution of the present application, the winding assembly comprises a rotating rod, both sides of the outer surface of the rotating rod are rotationally connected to the inside of the through groove, a safety belt is wound around the middle part of the outer surface of the rotating rod, positioning plates are fixedly connected to both sides of the outer surface of the rotating rod located on both sides of the safety belt, and spring sheets are fixedly connected to one end of the outer surface of the rotating rod.

[0011] As a preferred technical solution of the present application, the buffering assembly comprises a rotating disc, the outer surface of the rotating disc is rotationally connected to the inside of the annular groove, a gear ring is fixedly connected to one side of the rotating disc, a half gear is engaged with the outer surface of the gear ring, and a connecting rod is fixedly connected to one side of the half gear.

[0012] As a preferred technical solution of the present application, the back surface of the square shell is fixedly connected with a mounting plate, threaded grooves are formed in both sides of the mounting plate, and bolts are threadedly connected to the inside of the threaded grooves.

[0013] As a preferred technical solution of the present application, a recess is formed in one end of the control rod, and a moving groove matched with the control rod is formed in one side of one of the circular shells.

[0014] As a preferred technical solution of the present application, one end of the outer surface of the connecting rod is rotationally connected to the edge of one side of one of the circular shells, and a control groove is formed in one end of the connecting rod.

[0015] (Three) beneficial effects

[0016] 1. When the positioning assembly is subjected to a collision, the clamping ball is tilted, the second spring pulls the sliding block to drive the clamping ball to disengage from the limiting groove, the clamping plate moves rapidly to one end thereof, the one end of the clamping plate is provided with teeth matched with the gear ring, the teeth are clamped with the gear ring to limit and fix the fixed disc, thereby limiting the rotation of the rotating rod, fixing the length of the safety belt, and making a timely response to the collision to avoid the occupant from moving excessively forward in the collision and suffering secondary injury.

[0017] 2. When the clamping plate is clamped with the gear ring, the gear ring is driven to rotate, and the half gear limits the gear ring to provide a buffering space for the occupant and avoid the safety belt from being too tight to increase the discomfort of the occupant. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an emergency vehicle seat belt tensioning device;

[0019] Figure 2 This is a schematic diagram of the internal structure of a square shell in an emergency vehicle seat belt tensioning device;

[0020] Figure 3 This is a structural diagram of a positioning plate in an emergency vehicle seat belt tensioning device;

[0021] Figure 4 This is a schematic diagram of the structure of a fixing plate in an emergency vehicle seat belt tensioning device;

[0022] Figure 5 The diagram is a structural diagram of a half gear in an emergency vehicle seat belt tensioning device.

[0023] In the picture:

[0024] 1. Square shell; 2. Round shell; 3. Fixed plate; 4. Card ball; 5. First spring; 6. Slider; 7. Second spring; 8. Card plate; 9. Control lever; 10. Turning rod; 11. Safety belt; 12. Positioning plate; 13. Spring sheet; 14. Rotating plate; 15. Gear ring; 16. Half gear; 17. Connecting rod; 18. Mounting plate; 19. Bolt. DETAILED DESCRIPTION

[0025] 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.

[0026] The utility model provides an emergency vehicle safety belt tightening device, such as Figures 1-5 As shown, an emergency vehicle seat belt tensioning device includes a square shell 1, the inner side wall of the square shell 1 is provided with a through groove, the inner portion of which is rotatably connected to a winding assembly, one end of which is fixedly connected to a positioning assembly, and circular shells 2 are fixedly connected on both sides of the square shell 1. The inner side wall of one of the circular shells 2 is provided with an annular groove, and the inner portion of the annular groove is rotatably connected to a buffer assembly;

[0027] The positioning assembly comprises a fixed disc 3, one side of the fixed disc 3 is fixedly connected to one end of the winding assembly, the other side of the fixed disc 3 is provided with a limiting groove, a clamping ball 4 is clamped in the limiting groove, one side of the outer surface of the clamping ball 4 is fixedly connected with a first spring 5, one end of the first spring 5 is fixedly connected with a sliding block 6, one side of the outer surface of the sliding block 6 is fixedly connected with a second spring 7, one end of the sliding block 6 is fixedly connected with a clamping plate 8, one side of the clamping plate 8 is fixedly connected with a control rod 9, when being collided, the clamping ball 4 is inclined, the second spring 7 pulls the sliding block 6 to drive the clamping ball 4 to be separated from the limiting groove, the clamping plate 8 is quickly moved to one end thereof, one end of the clamping plate 8 is provided with a gear which is matched with a gear ring 15, the gear is clamped with the gear ring 15, the fixed disc 3 is limited and fixed, so that the rotation of a rotating rod 10 is limited, the length of a safety belt 11 is fixed, the setting can timely respond to the collision, the passenger is prevented from moving too much in the collision, and the passenger is prevented from being secondarily injured.

[0028] The winding assembly comprises the rotating rod 10, both sides of the outer surface of the rotating rod 10 are rotationally connected to the inside of the through groove, the safety belt 11 is wound on the middle part of the outer surface of the rotating rod 10, both sides of the outer surface of the rotating rod 10 are fixedly connected with the positioning plate 12, one end of the outer surface of the rotating rod 10 is fixedly connected with the spring sheet 13, the positioning plate 12 protects both sides of the safety belt 11, so that the safety belt 11 is not loose and disordered, the rotating rod 10 is convenient for winding and unwinding the safety belt 11, and the spring sheet 13 is convenient for automatically winding back the safety belt 11.

[0029] The buffering assembly comprises the rotating disc 14, the outer surface of the rotating disc 14 is rotationally connected to the inside of the annular groove, one side of the rotating disc 14 is fixedly connected with the gear ring 15, the outer surface of the gear ring 15 is engaged with the half gear 16, one side of the half gear 16 is fixedly connected with the connecting rod 17, when the clamping plate 8 is clamped with the gear ring 15, the gear ring 15 is driven to rotate, and the half gear 16 limits the gear ring 15, so that a buffering space is provided for the passenger, the safety belt 11 is prevented from being too tight, and the discomfort of the passenger is increased.

[0030] The back of the square shell 1 is fixedly connected with the mounting plate 18, both sides of the mounting plate 18 are provided with the threaded grooves, the threaded grooves are threadedly connected with the bolts 19, the mounting plate 18 is fixed at the required position by penetrating the bolts 19 through the threaded grooves, and the device is fixed.

[0031] One end of the control rod 9 is provided with the recess, one side of the one side of the circular shell 2 is provided with the moving groove which is matched with the control rod 9, the recess is convenient for another tool to restore the control rod 9 to the original position, so that the control rod 9 is used next time, and the moving groove avoids that the control rod 9 limits the movement of the clamping plate 8.

[0032] One end of the outer surface of the connecting rod 17 is rotationally connected to the edge of one side of the one side of the circular shell 2, one end of the connecting rod 17 is provided with the control groove, the control groove can drive the connecting rod 17 to rotate by another tool, so that the half gear 16 is rotated to the original position, so that the half gear 16 is used next time.

[0033] Working principle: first, the bolt 19 through the thread groove will install the plate 18 in the desired position, so that the device is fixed, then, the positioning plate 12 to the two sides of the safety belt 11 protection, pull safety belt 11 drive rotating rod 10 rotation, can be stretched, and spring piece 13 drive rotating rod 10 rotation, can make the safety belt 11 automatically retract, second, when the impact, the ball 4 produces skew, the second spring 7 pull the slider 6 drive ball 4 from the limit groove, make the clamping plate 8 quickly to one end of the movement, the clamping plate 8 one end is provided with the gear ring 15 is adapted to the gear, gear and gear ring 15 card connection, to the fixed disc 3 limit fixed, so as to limit the rotating rod 10 rotation, make the length of the safety belt 11 fixed, at the same time, the clamping plate 8 clamping plate 8, finally, another tool through the recess and control groove can control the rod 9 and half gear 16 rotation to the original position, in order to use next time.

[0034] The above, only for the preferred specific embodiments of the present application, but the scope of protection of the present application is not limited to this, any skilled in the art of the technical personnel in the present application disclosed in the technical range, according to the technical scheme of the present application and the utility model concept of the present application to replace or change, should be covered in the scope of protection of the present application.

Claims

1. An emergency vehicle safety belt tensioning device, comprising a square housing (1), characterized in that: The inner side wall of the square shell (1) is provided with a through groove, a winding assembly is rotatably connected inside the through groove, one end of the winding assembly is fixedly connected to a positioning assembly, and both sides of the square shell (1) are fixedly connected to circular shells (2), one side of the circular shell (2) is provided with an annular groove on the inner side wall, and a buffer assembly is rotatably connected inside the annular groove; The positioning assembly comprises a fixed disk (3), one side of the fixed disk (3) is fixedly connected to one end of the winding assembly, the other side of the fixed disk (3) is provided with a limiting groove, a clamping ball (4) is clamped inside the limiting groove, one side of the outer surface of the clamping ball (4) is fixedly connected to a first spring (5), one end of the first spring (5) is fixedly connected to a slider (6), one side of the outer surface of the slider (6) is fixedly connected to a second spring (7), one end of the slider (6) is fixedly connected to a clamping plate (8), and one side of the clamping plate (8) is fixedly connected to a control rod (9).

2. The emergency vehicle seat belt tensioning device according to claim 1, characterized in that: The winding assembly comprises a rotating rod (10), both sides of the outer surface of the rotating rod (10) are rotatably connected to the inside of the through groove, a safety belt (11) is wound around the middle of the outer surface of the rotating rod (10), positioning plates (12) are fixedly connected to both sides of the outer surface of the rotating rod (10) located on the safety belt (11), and a spring sheet (13) is fixedly connected to one end of the outer surface of the rotating rod (10).

3. The emergency vehicle seat belt tensioning device according to claim 1, characterized in that: The buffer assembly comprises a rotating disk (14), the outer surface of which is rotatably connected to the inside of the annular groove, a gear ring (15) fixedly connected to one side of the rotating disk (14), a half gear (16) meshed with the outer surface of the gear ring (15), and a connecting rod (17) fixedly connected to one side of the half gear (16).

4. The emergency vehicle seat belt tensioning device according to claim 1, characterized in that: The back of the square shell (1) is fixedly connected to a mounting plate (18), and thread grooves are provided on both sides of the mounting plate (18), and bolts (19) are connected to the internal threads of the thread grooves.

5. The emergency vehicle seat belt tensioning device according to claim 1, characterized in that: A groove is provided at one end of the control rod (9), and a movable groove adapted to the control rod (9) is provided at one side of the circular shell (2).

6. The emergency vehicle seat belt tensioning device according to claim 3, characterized in that: One end of the outer surface of the connecting rod (17) is rotatably connected to the edge of one side of the circular shell (2), and a control groove is provided at one end of the connecting rod (17).

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