A passive safety protection device for automobile steering wheel

Abstract

The utility model belongs to the field of automobile technology, and specifically is a passive safety protection device for automobile steering wheels, wherein a fixed plate is installed on the top of the steering wheel support frame; support rods are fixedly connected to both sides of the fixed plate; a steering wheel protective cover is installed on the other end of the support rod; a sliding cavity is opened inside the fixed plate; a soft cushion is slidably connected inside the sliding cavity; the head of a driver hits the soft cushion on the surface of the fixed plate, and as the soft cushion is squeezed, the soft cushion moves toward the bottom to squeeze an airbag, so that the gas inside the airbag flows to the inside of the steering wheel protective cover through an air pipe, so that the steering wheel protective cover expands rapidly, and then protects the user's head and upper body, thereby reducing the collision between the user's head and the steering wheel, which may cause the user to be injured.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, in particular to a passive safety protection device for an automobile steering wheel. Background Art

[0002] When a car is driving, a steering wheel is needed to control the direction of the vehicle to achieve functions such as steering. When the vehicle is turned off, the steering wheel will automatically lock to prevent illegal movement.

[0003] During daily use, the car steering wheel also has other functions, such as vehicle protection function. By identifying the driver's control habits and status, once abnormal control or fatigue driving is detected, it can remind the driver through vibration, sound, etc.

[0004] In the current prior art, when a collision accident occurs while a car is driving, the user's head and body will hit the surface of the steering wheel. If the steering wheel is very rigid, this will cause serious harm to the human body. Therefore, a passive safety protection device for a car steering wheel is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes a passive safety protection device for a vehicle steering wheel.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a passive safety protection device for a car steering wheel, wherein a fixed plate is installed on the top of the steering wheel support frame; support rods are fixedly connected to both sides of the fixed plate; a steering wheel protective cover is installed on the other end of the support rod; a sliding cavity is opened inside the fixed plate; a soft cushion is slidably connected inside the sliding cavity; an airbag is fixedly connected to the inner wall of the sliding cavity, and the other end of the airbag is fixedly connected to the bottom of the soft cushion; an air pipe is fixedly connected to one end of the airbag, and the other end is fixedly connected to the end of the steering wheel protective cover.

[0007] Preferably, a slide groove is provided inside the steering wheel support frame; a push plate is slidably connected inside the slide groove; a push rod is fixedly connected to the top of the push plate, and the other end of the push rod is fixedly connected to the bottom of the cushion; a first spring is fixedly connected to the bottom of the push plate, and the other end of the first spring is fixedly connected to the inner wall of the slide groove.

[0008] Preferably, a lock groove is provided inside the push plate; a cavity is provided inside the steering wheel support frame; a lock block is slidably connected inside the cavity; a second spring is fixed to the side end of the lock block, and the other end of the second spring is fixed to the inside of the cavity.

[0009] Preferably, a pull rod is fixedly connected to the side end of the locking block; and a handle is fixedly connected to the end of the pull rod.

[0010] Preferably, the end of the soft cushion is fixedly connected to a limiting plate; the end of the support rod is slidably connected to a protective cushion.

[0011] Preferably, a guide rod is hingedly connected to the bottom of the limiting plate via a torsion spring, and the other end of the guide rod is fixedly connected to the end of the protective pad.

[0012] Beneficial effects of the utility model:

[0013] 1. The utility model provides a passive safety protection device for a car steering wheel, which makes the driver's head hit the soft cushion on the surface of the fixed plate. As the soft cushion is squeezed, the soft cushion moves to the bottom to squeeze the airbag, so that the gas inside the airbag flows to the inside of the steering wheel protective cover through the air pipe, so that the steering wheel protective cover expands rapidly, and then protects the user's head and upper body, reducing the collision between the user's head and the steering wheel, which may cause the user to be injured.

[0014] 2. The utility model provides a passive safety protection device for a car steering wheel. When the soft cushion moves toward the bottom by being hit, it is pressed on the surface of the push rod, so that the push rod pushes the push plate to slide inside the slide groove, and then the first spring is squeezed to generate elastic force to achieve a buffering effect, so that the soft cushion slides slowly to the bottom, thereby reducing the damage to the user for a second time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the soft cushion in the utility model;

[0019] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0020] Legend:

[0021] 1. Steering wheel protective cover; 21. Steering wheel support frame; 22. Fixed plate; 23. Support rod; 24. Protective pad; 25. Sliding cavity; 26. Cushion; 27. Airbag; 28. Limit plate; 29. ​​Guide rod; 31. Air pipe; 32. Slide groove; 33. Push plate; 34. Push rod; 35. First spring; 41. Lock groove; 42. Cavity; 43. Lock block; 44. Second spring; 51. Pull rod; 52. Pull handle. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] Specific examples are given below.

[0024] See also Figure 1-Figure 4 The utility model provides a passive safety protection device for a steering wheel of an automobile, wherein a fixed plate 22 is installed on the top of the steering wheel support frame 21; support rods 23 are fixedly connected to both sides of the fixed plate 22; a steering wheel protection cover 1 is installed on the other end of the support rod 23; a sliding cavity 25 is opened inside the fixed plate 22; a soft cushion 26 is slidably connected inside the sliding cavity 25; an airbag 27 is fixedly connected to the inner side wall of the sliding cavity 25, and the other end of the airbag 27 is fixedly connected to the bottom of the soft cushion 26; one end of the airbag 27 is fixedly connected to the air pipe 3 1, and the other end is fixedly connected to the end of the steering wheel protective cover 1; when working, when the vehicle collides, the driver's head hits the soft cushion 26 on the surface of the fixed plate 22, and as the soft cushion 26 is squeezed, the soft cushion 26 moves to the bottom to squeeze the airbag 27, so that the gas inside the airbag 27 flows to the inside of the steering wheel protective cover 1 through the air pipe 31, so that the steering wheel protective cover 1 expands rapidly, and then protects the user's head and upper body, thereby reducing the collision between the user's head and the steering wheel, which may cause the user to be injured.

[0025] Further, if Figure 1-Figure 3As shown, a slide groove 32 is provided inside the steering wheel support frame 21; a push plate 33 is slidably connected inside the slide groove 32; a push rod 34 is fixedly connected to the top of the push plate 33, and the other end of the push rod 34 is fixedly connected to the bottom of the cushion 26; a first spring 35 is fixedly connected to the bottom of the push plate 33, and the other end of the first spring 35 is fixedly connected to the inner wall of the slide groove 32; during operation, when the cushion 26 moves toward the bottom under impact, the push rod 34 pushes the push plate 33 to slide toward the inside of the slide groove 32 by squeezing the surface of the push rod 34, and then squeezes the first spring 35 to generate elastic force, thereby achieving a buffering effect, so that the cushion 26 slides slowly to the bottom, thereby reducing the damage to the user for a second time.

[0026] Further, if Figure 3 As shown, a lock groove 41 is provided inside the push plate 33; a cavity 42 is provided inside the steering wheel support frame 21; a lock block 43 is slidably connected inside the cavity 42; a second spring 44 is fixedly connected to the side end of the lock block 43, and the other end of the second spring 44 is fixedly connected to the inside of the cavity 42; during operation, when the push plate 33 moves toward the bottom, it squeezes the end of the lock block 43, so that the lock block 43 is subjected to force to shrink toward the inside of the cavity 42, and then the second spring 44 is squeezed to generate elastic force, and when the lock groove 41 and the cavity 42 are aligned with each other, the second spring 44 generates elastic force to push the lock block 43 into the inside of the lock groove 41 for clamping and fixing, so as to limit the position, thereby effectively improving the protection effect of the cushion 26 on the user.

[0027] Further, if Figure 4 As shown, a pull rod 51 is fixedly connected to the side end of the locking block 43; a pull handle 52 is fixedly connected to the end of the pull rod 51; during operation, when the accident is over, the pull handle 52 is pulled to drive the pull rod 51 to slide toward the side end, so that the pull rod 51 drives the locking block 43 to shrink from the inside of the locking groove 41 to the inside of the cavity 42, and then the first spring 35 generates elastic force to push the cushion 26 to reset, so as to facilitate the next use.

[0028] Further, if Figure 1-Figure 3 As shown, the end of the soft cushion 26 is fixedly connected to the limiting plate 28; during operation, when the soft cushion 26 moves toward the bottom, a limiting plate 28 is installed at the end of the soft cushion 26 to achieve a limiting effect, thereby preventing the soft cushion 26 from shrinking directly inside the sliding cavity 25, causing the fixed plate 22 to be exposed and hit the user's head.

[0029] Further, if Figure 1-Figure 3 As shown, the end of the support rod 23 is slidably connected with a protective pad 24; when working, the protective pad 24 is installed at the end of the support rod 23 to improve the protection effect of the support rod 23 and reduce the impact on the user's head.

[0030] Further, if Figure 1-Figure 3 As shown, the bottom of the limit plate 28 is hinged with a guide rod 29 through a torsion spring, and the other end of the guide rod 29 is fixedly connected to the end of the protective pad 24; during operation, when the soft pad 26 is impacted and moves toward the bottom, it drives the limit plate 28 to move toward the bottom, so that the limit plate 28 pushes the guide rod 29, so that the guide rod 29 rotates and pushes the protective pad 24 to slide to the side end, so as to adjust the position of the protective pad 24 and increase the protective area of ​​the protective pad 24.

[0031] Working principle: When a vehicle collides, the driver's head hits the soft cushion 26 on the surface of the fixed plate 22. As the soft cushion 26 is squeezed, the soft cushion 26 moves to the bottom to squeeze the airbag 27, so that the gas inside the airbag 27 flows into the interior of the steering wheel protective cover 1 through the air pipe 31, so that the steering wheel protective cover 1 expands rapidly, and then protects the user's head and upper body, reducing the collision between the user's head and the steering wheel, which may cause the user to be injured; when the soft cushion 26 is hit and moves to the bottom, the airbag 27 is compressed, and the airbag 27 is compressed. By squeezing the surface of the push rod 34, the push rod 34 pushes the push plate 33 to slide inside the slide groove 32, and then squeezes the first spring 35 to generate elastic force to achieve a buffering effect, so that the cushion 26 slowly slides to the bottom, thereby reducing the damage to the user for a second time; when the push plate 33 moves to the bottom, it squeezes the end of the lock block 43, so that the lock block 43 is forced to shrink toward the inside of the cavity 42, and then squeezes the second spring 44 to generate elastic force. When the lock groove 41 and the cavity 42 are aligned with each other, the second spring 44 generates elastic force to push the lock block The locking block 43 is inserted into the locking groove 41 for clamping and fixing to limit the position, which effectively improves the protective effect of the cushion 26 on the user; when the accident is over, the pull handle 52 is pulled to drive the pull rod 51 to slide to the side end, so that the pull rod 51 drives the lock block 43 to shrink from the inside of the locking groove 41 to the inside of the cavity 42, and then the first spring 35 generates elastic force to push the cushion 26 to reset, which is convenient for the next use; when the cushion 26 moves to the bottom, a limiting plate 28 is installed at the end of the cushion 26 to achieve a limiting effect, reducing The soft pad 26 is directly retracted into the sliding cavity 25, causing the fixed plate 22 to be exposed and causing an impact on the user's head. By installing a protective pad 24 at the end of the support rod 23, the protective effect of the support rod 23 is improved and the impact on the user's head is reduced. When the soft pad 26 is hit and moves toward the bottom, it drives the limit plate 28 to move toward the bottom, so that the limit plate 28 pushes the guide rod 29, so that the guide rod 29 rotates and pushes the protective pad 24 to slide to the side end, so as to adjust the position of the protective pad 24 and increase the protection area of ​​the protective pad 24.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A passive safety protection device for a vehicle steering wheel, comprising a steering wheel support frame (21), characterized in that: A fixed plate (22) is installed on the top of the steering wheel support frame (21); support rods (23) are fixedly connected to both sides of the fixed plate (22); a steering wheel protective cover (1) is installed on the other end of the support rod (23); a sliding cavity (25) is opened inside the fixed plate (22); a soft cushion (26) is slidably connected inside the sliding cavity (25); an air bag (27) is fixedly connected to the inner wall of the sliding cavity (25), and the other end of the air bag (27) is fixedly connected to the bottom of the soft cushion (26); one end of the air bag (27) is fixedly connected to an air pipe (31), and the other end is fixedly connected to the end of the steering wheel protective cover (1).

2. A passive safety protection device for a vehicle steering wheel as claimed in claim 1, characterized in that: A slide groove (32) is provided inside the steering wheel support frame (21); a push plate (33) is slidably connected inside the slide groove (32); a push rod (34) is fixedly connected to the top of the push plate (33), and the other end of the push rod (34) is fixedly connected to the bottom of the cushion (26); a first spring (35) is fixedly connected to the bottom of the push plate (33), and the other end of the first spring (35) is fixedly connected to the inner wall of the slide groove (32).

3. A passive safety protection device for a vehicle steering wheel as claimed in claim 2, characterized in that: A locking groove (41) is provided inside the push plate (33); a cavity (42) is provided inside the steering wheel support frame (21); a locking block (43) is slidably connected inside the cavity (42); a second spring (44) is fixedly connected to a side end of the locking block (43), and the other end of the second spring (44) is fixedly connected to the inside of the cavity (42).

4. A passive safety protection device for a vehicle steering wheel as claimed in claim 3, characterized in that: A pull rod (51) is fixedly connected to the side end of the locking block (43); and a pull handle (52) is fixedly connected to the end of the pull rod (51).

5. The passive safety protection device for a vehicle steering wheel according to claim 1, characterized in that: The end of the soft cushion (26) is fixedly connected to a limiting plate (28).

6. The passive safety protection device for a vehicle steering wheel as claimed in claim 1, characterized in that: The end of the support rod (23) is slidably connected with a protection pad (24).

7. A passive safety protection device for a vehicle steering wheel as claimed in claim 5, characterized in that: The bottom of the limiting plate (28) is hinged with a guide rod (29) via a torsion spring, and the other end of the guide rod (29) is fixedly connected to the end of the protective pad (24).

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