Safety belt locking device

Abstract

The utility model relates to the technical field of safety belts and discloses a safety belt locking device which comprises an upper mounting frame and a lower mounting frame, a sliding groove is formed in the side end in the upper mounting frame, a motor is mounted at the top end of the sliding groove, a threaded rod is fixedly mounted on an output shaft of the motor, a sliding block is arranged on the outer wall of the threaded rod in a threaded and sleeved mode, and an upper roller body is mounted at the side end of the sliding block. A lower roller body is installed at the side end of the lower installation frame, a gear is fixedly installed on the outer wall of the lower roller body, first electric telescopic rods are symmetrically installed at the bottom end in the lower installation frame, racks are fixedly installed at the top ends of the first electric telescopic rods, second electric telescopic rods are symmetrically installed at the side ends of the sliding blocks, and limiting plates are fixedly installed at the side ends of the second electric telescopic rods. According to the safety belt locking device, by arranging the first electric telescopic rod, the rack and the gear, a safety belt can be conveniently locked, and by arranging the motor, the threaded rod and the sliding block, the distance between the upper roller body and the lower roller body can be conveniently adjusted according to the thickness of the safety belt.

Description

Technical Field

[0001] The utility model relates to the technical field of safety belts, in particular to a safety belt locking device. Background Art

[0002] Seat belts are important components and facilities in the vehicle structure. Their function is to effectively protect the driver and passengers when emergencies such as collisions occur during vehicle movement, and to avoid or reduce damage caused by inertia. They are safety protection devices that drivers must use when driving vehicles, and their usage specifications 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 in use, so that the seat belt remains tight, exerting pressure on the shoulders and chest of the user. Long-term use is more likely to cause discomfort to the user and may even cause wear. In addition, the existing seat belt locking device is not convenient to adjust according to the thickness of the seat belt, which reduces the applicability of the device body. Therefore, it is necessary to improve the existing device to meet actual needs. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a seat belt locking device, which has the advantages of being easy to lock the seat belt and easy to adjust according to the thickness of the seat belt, thereby solving the above technical problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seat belt locking device, comprising an upper mounting frame and a lower mounting frame, a slide groove is provided at the inner side end of the upper mounting frame, a motor is installed at the top of the slide groove, a threaded rod is fixedly installed on the motor output shaft, a slider is threadedly sleeved on the outer wall of the threaded rod, an upper roller body is installed on the side end of the slider, a lower roller body is installed on the side end of the lower mounting frame, a gear is fixedly installed on the outer wall of the lower roller, an electric telescopic rod 1 is symmetrically installed at the bottom end of the lower mounting frame, and a rack is fixedly installed on the top of the electric telescopic rod 1.

[0008] Preferably, a controller is installed on the side end of the upper mounting frame, and a pressure sensor is installed on the side end of the lower mounting frame.

[0009] Through the above technical solution, the electric telescopic rod 1, the electric telescopic rod 2 and the pressure sensor are electrically connected to the controller respectively.

[0010] Preferably, a limiting rod is installed inside the slide groove, and a sliding block is sleeved on the outer wall of the limiting rod.

[0011] Through the above technical solution, by setting the limit rod, it is convenient to limit the movement of the slider.

[0012] Preferably, two electric telescopic rods are symmetrically mounted on the side ends of the sliding block, and limiting plates are fixedly mounted on the side ends of the two electric telescopic rods.

[0013] Through the above technical solution, the electric telescopic rod 2 is started, and the electric telescopic rod 2 drives the limit plate to move toward the side ends of the upper roller body and the lower roller body, so that the safety belt can be limited to prevent the safety belt from shifting.

[0014] Preferably, rubber strips are fixedly mounted on the outer walls of the upper roller body and the lower roller body.

[0015] Through the above technical solution, by arranging the rubber strip, the friction between the safety belt and the upper roller body and the lower roller body can be increased, and the wear on the outer wall of the safety belt can also be reduced.

[0016] Preferably, the gear and the rack are engaged with each other.

[0017] Through the above technical solution, the gear and the rack are engaged with each other, so that the gear is limited by the rack.

[0018] Compared with the prior art, the utility model provides a seat belt locking device, which has the following beneficial effects:

[0019] 1. The utility model installs the upper mounting frame at the top of the connection between the vehicle body and the safety belt, and installs the lower mounting frame at the bottom of the connection between the vehicle body and the safety belt. At this time, the safety belt passes through the upper roller body and the lower roller body, and the motor is started. The motor drives the threaded rod to rotate, and the rotation of the threaded rod drives the slider to move downward. The downward movement of the slider drives the upper roller body to move downward until the safety belt is wrapped between the upper roller body and the lower roller body. At this time, when the safety belt is pulled, the safety belt drives the upper roller body and the lower roller body to rotate.

[0020] 2. The utility model starts the electric telescopic rod 2, which drives the limit plate to move toward the side ends of the upper roller body and the lower roller body, so that the safety belt can be limited to prevent the safety belt from shifting. When the safety belt is passed through the user and the buckle is inserted, the electric telescopic rod is started and drives the rack to move toward the outer wall of the gear until the rack and the gear are engaged, thereby limiting the rotation of the lower roller body, so that the upper roller body and the lower roller body are used to place the safety belt for sliding, thereby locking the safety belt. By setting a pressure sensor, the pressure between the safety belt and the lower mounting frame can be detected in real time. When the pressure is detected to be too high, the electric telescopic rod can be controlled to start by the controller. The electric telescopic rod starts and drives the rack away from the outer wall of the gear, thereby releasing the limit on the safety belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the safety belt locking device of the utility model structure;

[0022] Figure 2 It is a front cutaway schematic diagram of the safety belt locking device of the utility model structure;

[0023] Figure 3 It is a side view cutaway schematic diagram of the safety belt locking device of the utility model structure;

[0024] Figure 4 The utility model structure Figure 3 A is a partial enlarged schematic diagram of the middle part.

[0025] Among them: 1. upper mounting frame; 2. lower mounting frame; 3. slide groove; 4. motor; 5. threaded rod; 6. slider; 7. upper roller body; 8. lower roller body; 9. gear; 10. electric telescopic rod 1; 11. rack; 12. controller; 13. pressure sensor; 14. limit rod; 15. electric telescopic rod 2; 16. limit plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-4 A seat belt locking device comprises an upper mounting frame 1 and a lower mounting frame 2, a slide groove 3 is opened at the inner side end of the upper mounting frame 1, a motor 4 is installed at the top of the slide groove 3, a threaded rod 5 is fixedly installed on the output shaft of the motor 4, a slider 6 is threadedly sleeved on the outer wall of the threaded rod 5, an upper roller body 7 is installed on the side end of the slider 6, a lower roller body 8 is installed on the side end of the lower mounting frame 2, a gear 9 is fixedly installed on the outer wall of the lower roller body 8, an electric telescopic rod 10 is symmetrically installed at the bottom end of the lower mounting frame 2, and a rack 11 is fixedly installed on the top of the electric telescopic rod 10.

[0028] Specifically, a controller 12 is installed on the side end of the upper mounting frame 1, and a pressure sensor 13 is installed on the side end of the lower mounting frame 2. The advantage is that the electric telescopic rod 10, the electric telescopic rod 2 15 and the pressure sensor 13 are electrically connected to the controller 12 respectively.

[0029] Specifically, a limiting rod 14 is installed inside the slide groove 3, and the outer wall of the limiting rod 14 is sleeved with a sliding block 6. The advantage is that by providing the limiting rod 14, the movement of the sliding block 6 can be limited easily.

[0030] Specifically, the side ends of the slider 6 are symmetrically installed with electric telescopic rods 15, and the side ends of the electric telescopic rods 15 are fixedly installed with limit plates 16. The advantage is that when the electric telescopic rods 15 are started, the electric telescopic rods 15 drive the limit plates 16 to move toward the side ends of the upper roller body 7 and the lower roller body 8, so that the safety belt can be limited to prevent the safety belt from shifting.

[0031] Specifically, rubber strips are fixedly installed on the outer walls of the upper roller body 7 and the lower roller body 8. The advantage is that by providing the rubber strips, the friction between the safety belt and the upper roller body 7 and the lower roller body 8 can be increased, and the wear on the outer wall of the safety belt can also be reduced.

[0032] Specifically, the gear 9 and the rack 11 are engaged with each other, and the advantage is that the gear 9 and the rack 11 are engaged with each other, so that the rack 11 is used to limit the gear 9 .

[0033] When in use, the upper mounting frame 1 is mounted on the top of the connection between the vehicle body and the safety belt, and the lower mounting frame 2 is mounted on the bottom of the connection between the vehicle body and the safety belt. At this time, the safety belt passes through the upper roller body 7 and the lower roller body 8, and the motor 4 is started. The motor 4 drives the threaded rod 5 to rotate, and the threaded rod 5 rotates to drive the slider 6 to move downward. The slider 6 moves downward to drive the upper roller body 7 to move downward until the safety belt is wrapped between the upper roller body 7 and the lower roller body 8. At this time, when the safety belt is pulled, the safety belt drives the upper roller body 7 and the lower roller body 8 to rotate, and the electric telescopic rod 2 15 is started. The electric telescopic rod 2 15 drives the limit plate 16 to move to the side ends of the upper roller body 7 and the lower roller body 8, so that In order to limit the seat belt and prevent it from shifting, when the seat belt is passed through the user and inserted into the buckle, the electric telescopic rod 10 is started and drives the rack 11 to move toward the outer wall of the gear 9 until the rack 11 and the gear 9 are engaged, thereby limiting the rotation of the lower roller body 8, so that the upper roller body 7 and the lower roller body 8 are used to place the seat belt for sliding, thereby locking the seat belt. By setting a pressure sensor 13, the pressure between the seat belt and the lower mounting frame 2 can be detected in real time. When it is detected that the pressure is too high, the controller 12 can be used to control the electric telescopic rod 10 to start. The electric telescopic rod 10 starts to drive the rack 11 away from the outer wall of the gear 9, thereby releasing the limit on the seat belt.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seat belt locking device, comprising an upper mounting frame (1) and a lower mounting frame (2), characterized in that: A slide groove (3) is provided at the inner side end of the upper mounting frame (1), a motor (4) is installed at the top of the slide groove (3), a threaded rod (5) is fixedly installed on the output shaft of the motor (4), a slider (6) is threadedly sleeved on the outer wall of the threaded rod (5), an upper roller body (7) is installed at the side end of the slider (6), a lower roller body (8) is installed at the side end of the lower mounting frame (2), a gear (9) is fixedly installed on the outer wall of the lower roller body (8), an electric telescopic rod (10) is symmetrically installed at the bottom end of the lower mounting frame (2), and a rack (11) is fixedly installed at the top of the electric telescopic rod (10).

2. A seat belt locking device according to claim 1, characterized in that: A controller (12) is installed on the side end of the upper mounting frame (1), and a pressure sensor (13) is installed on the side end of the lower mounting frame (2).

3. A seat belt locking device according to claim 1, characterized in that: A limiting rod (14) is installed inside the slide groove (3), and a sliding block (6) is sleeved on the outer wall of the limiting rod (14).

4. A seat belt locking device according to claim 1, characterized in that: The side ends of the slide block (6) are symmetrically mounted with electric telescopic rods (15), and the side ends of the electric telescopic rods (15) are fixedly mounted with limit plates (16).

5. A seat belt locking device according to claim 1, characterized in that: Rubber strips are fixedly mounted on the outer walls of the upper roller body (7) and the lower roller body (8).

6. A seat belt locking device according to claim 1, characterized in that: The gear (9) and the rack (11) are engaged with each other.

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