Automobile crumple type steering tube energy absorption structure
By designing a combination of movable connections, rotating frames and elastic telescopic rods, combined with energy-absorbing belts and force sensors, efficient absorption and dispersion of collision energy is achieved, solving the problems of low energy absorption efficiency and high cost of existing steering tube energy absorption structures, and improving passenger safety and structural stability.
Patent Information
- Application Number
- CN202422834742.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The existing automobile crush-type steering tube energy absorption structure has low energy absorption efficiency, complex structure and high manufacturing cost, and is difficult to effectively absorb and disperse collision energy, resulting in significant impact injuries to passengers.
A steering tube energy-absorbing structure was designed, which included an upper tube column, a lower tube column, a connecting sleeve, a general mounting frame, an energy-absorbing assembly, and an auxiliary assembly. Through the combination of movable connections, a rotating frame, and an elastic telescopic rod, an additional energy-absorbing path was provided. Energy-absorbing belts and force sensors were used to monitor the collision process in real time, thereby achieving effective absorption and dispersion of energy.
It improves energy absorption efficiency, reduces impact damage to passengers, simplifies structural design, reduces manufacturing costs, and provides timely safety feedback through real-time monitoring to improve passenger safety.
Smart Images
Figure CN223370938U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an automobile collapse type steering tube energy absorption structure, belonging to the automobile field Background Art
[0002] With the rapid development of the automotive industry, vehicle safety has become a major concern for consumers. In a car crash, the steering tube, a key component connecting the steering wheel to the steering mechanism, has a significant impact on passenger safety through its energy absorption performance. While steering tube designs often prioritize rigidity and stability, these often struggle to effectively absorb and disperse collision energy during a collision, resulting in significant impact injuries to passengers.
[0003] To address these issues, automotive crush-tube energy-absorbing structures have gained increasing attention in recent years. By employing specialized energy-absorbing and auxiliary components, these structures can rapidly absorb and disperse energy during a collision, thereby minimizing injuries to passengers. However, existing crush-tube energy-absorbing structures still have some drawbacks, such as low energy absorption efficiency, complex structure, and high manufacturing costs. Utility Model Content
[0004] To address the deficiencies of the prior art, the present invention provides an automobile collapse-type steering tube energy absorption structure, which has the advantages of high energy absorption efficiency and low manufacturing cost.
[0005] In summary, the present invention provides the following technical solutions: an automobile collapsible steering tube energy absorption structure, comprising an upper tube column, a lower tube column, and a general mounting frame, wherein a connecting sleeve is sleeved between opposite ends of the upper tube column and the lower tube column, and an energy absorption component for absorbing energy is provided on the back of the general mounting frame;
[0006] The energy absorbing assembly includes a back plate frame fixedly connected to the back of the general mounting frame, two bolt connection cylinders fixedly connected to the inner rear side wall of the back plate frame, fixing bolts threadedly connected to the inner sides of the bolt connection cylinders, and an energy absorbing belt slidably connected to the outer sides of the fixing bolts;
[0007] An auxiliary component for enhancing the energy absorption effect is provided on the outer side of the connecting sleeve.
[0008] Furthermore, the upper surface and the bottom of the general mounting frame are both provided with movable openings adapted to the connecting sleeve, and the connecting sleeve is movably connected to the general mounting frame through the movable openings on the upper and lower sides.
[0009] The beneficial effect of adopting the above-mentioned further solution is that, through the movable connection design, the connecting sleeve is allowed to undergo a certain degree of displacement within the overall mounting frame when subjected to impact force, thereby absorbing and dispersing the collision energy, reducing the direct impact on the upper and lower columns, and improving the crashworthiness of the entire steering tube energy-absorbing structure and the safety of passengers.
[0010] Furthermore, the auxiliary component includes a rotating frame rotatably connected to the outside of the connecting sleeve and four elastic telescopic rods fixedly connected to the bottom of the rotating frame.
[0011] The beneficial effect of adopting the above further solution is that the combined design of the rotating frame and the elastic telescopic rod can provide an additional energy absorption path when a collision occurs, further absorbing the collision energy through the deformation of the elastic telescopic rod, thereby improving the overall energy absorption efficiency of the structure.
[0012] Furthermore, the four elastic telescopic rods are respectively arranged at the four corners of the bottom of the rotating frame, and the bottom ends of the elastic telescopic rods are fixedly connected to the inner bottom wall of the main mounting frame.
[0013] The beneficial effect of adopting the above further solution is that the arrangement of the four corners ensures that the rotating frame can maintain balance and stability when subjected to impact force, avoids structural distortion or damage caused by uneven force, and also provides a more uniform energy absorption effect.
[0014] Furthermore, two slides are fixedly connected to the front of the rotating frame, and two slide grooves adapted to the slides are provided on the front of the general mounting frame.
[0015] The beneficial effect of adopting the above further solution is that the design of the sliding plate and the sliding groove allows the rotating frame to move along a predetermined path when subjected to an impact force, which helps to control the energy transfer path during the collision process.
[0016] Furthermore, the two bolt connection cylinders are respectively arranged on the left part of the inner rear side wall and the right part of the inner rear side wall of the back plate frame, and the general mounting frame is located between the two bolt connection cylinders.
[0017] The beneficial effect of adopting the above further solution is that the left-right symmetrical arrangement enables the energy absorption belts to be evenly distributed on both sides of the back panel frame, thereby providing a more balanced energy absorption effect during a collision and avoiding structural failure caused by uneven force.
[0018] Furthermore, the energy absorbing belt is fixedly connected to the vehicle body, and a sliding opening adapted to the fixing bolt is provided on the inner side of the energy absorbing belt, and the sliding opening gradually narrows along the up-and-down direction of the energy absorbing belt.
[0019] The beneficial effect of adopting the above further solution is that the design of the sliding mouth enables the fixing bolt to move along the up and down directions of the energy absorption belt, and the gradually narrowing sliding mouth can gradually increase the resistance during the movement, thereby more effectively absorbing the collision energy and improving the energy absorption efficiency and reliability.
[0020] Furthermore, a force sensor is fixedly connected to the back of the general mounting frame, and an accommodating opening adapted to the force sensor is provided on the inner side of the back plate frame.
[0021] The beneficial effect of adopting the above-mentioned further solution is that the introduction of the force sensor can monitor the force conditions of the steering tube energy absorption structure during the collision in real time, providing timely and accurate feedback information to the vehicle's safety system, thereby triggering protective measures when necessary, such as airbag deployment, further improving passenger safety.
[0022] Compared with the prior art, the present invention has the following beneficial effects:
[0023] The energy-absorbing component can more effectively absorb and disperse collision energy when a collision occurs. This design not only improves the efficiency of energy absorption, but also ensures a smooth and controllable energy absorption process, thereby greatly reducing impact damage to passengers. By simplifying the structural design and optimizing material selection, the utility model effectively reduces manufacturing costs while ensuring performance, making the connection between components simpler and faster, and reducing assembly time and costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the structure of the utility model;
[0025] Figure 2 It is a front view schematic diagram of the utility model;
[0026] Figure 3 It is a schematic diagram of the back of the utility model;
[0027] Figure 4 It is a three-dimensional diagram of the back panel frame in the structure of the utility model.
[0028] Description of reference numerals:
[0029] 1. Upper pipe column; 2. Lower pipe column; 3. General mounting frame; 4. Connecting sleeve; 5. Back plate frame; 6. Bolt connecting cylinder; 7. Fixing bolt; 8. Energy absorbing belt; 9. Rotating frame; 10. Elastic telescopic rod; 11. Slide; 12. Force sensor. DETAILED DESCRIPTION
[0030] See also Figures 1 to 4 A vehicle collapse steering tube energy absorption structure includes an upper tube column 1, a lower tube column 2 and a general mounting frame 3. A connecting sleeve 4 is sleeved between the opposite ends of the upper tube column 1 and the lower tube column 2, and an energy absorption component for absorbing energy is provided on the back of the general mounting frame 3.
[0031] like Figure 1 As shown, the energy absorption assembly includes a back plate frame 5 fixedly connected to the back of the main mounting frame 3, two bolt connection tubes 6 fixedly connected to the inner rear side wall of the back plate frame 5, a fixing bolt 7 threadedly connected to the inner side of the bolt connection tube 6, and an energy absorption belt 8 slidably connected to the outer side of the fixing bolt 7.
[0032] An auxiliary component for enhancing the energy absorption effect is provided on the outer side of the connecting sleeve 4.
[0033] It should be noted that the upper surface and bottom of the total mounting frame 3 are provided with movable openings that are compatible with the connecting sleeve 4. The connecting sleeve 4 is movably connected to the total mounting frame 3 through the movable openings on the upper and lower sides. The movable connection design allows the connecting sleeve 4 to be displaced to a certain extent in the total mounting frame 3 when subjected to impact force, thereby absorbing and dispersing the collision energy, reducing the direct impact on the upper column 1 and the lower column 2, and improving the crash resistance of the entire steering tube energy absorption structure and the safety of the passengers.
[0034] The auxiliary component includes a rotating frame 9 rotatably connected to the outside of the connecting sleeve 4 and four elastic telescopic rods 10 fixedly connected to the bottom of the rotating frame 9. The combined design of the rotating frame 9 and the elastic telescopic rods 10 can provide an additional energy absorption path when a collision occurs, and further absorb the collision energy through the deformation of the elastic telescopic rods 10, thereby improving the overall energy absorption efficiency of the structure.
[0035] Four elastic telescopic rods 10 are respectively arranged at the four corners of the bottom of the rotating frame 9. The bottom ends of the elastic telescopic rods 10 are fixedly connected to the inner bottom wall of the main mounting frame 3. The arrangement of the four corners ensures that the rotating frame can maintain balance and stability when subjected to impact force, avoiding structural distortion or damage caused by uneven force, and also providing a more uniform energy absorption effect.
[0036] Two slides 11 are fixedly connected to the front of the rotating frame 9, and two slide grooves compatible with the slides 11 are opened on the front of the main mounting frame 3. The design of the slides 11 and the slide grooves allows the rotating frame to move along a predetermined path when subjected to impact force, which helps to control the energy transfer path during the collision.
[0037] The two bolt connection tubes 6 are respectively arranged on the left and right parts of the inner rear side wall of the back plate frame 5, and the general mounting frame 3 is located between the two bolt connection tubes 6. The left-right symmetrical arrangement enables the energy absorption belt 8 to be evenly distributed on both sides of the back plate frame 5, thereby providing a more balanced energy absorption effect during a collision, and avoiding structural failure caused by uneven force.
[0038] The energy absorbing belt 8 is fixedly connected to the vehicle body. A sliding opening adapted to the fixing bolt 7 is opened on the inner side of the energy absorbing belt 8, and the sliding opening gradually narrows along the up and down directions of the energy absorbing belt 8. The design of the sliding opening enables the fixing bolt 7 to move along the up and down directions of the energy absorbing belt 8, and the gradually narrowing sliding opening can gradually increase the resistance during the movement, thereby more effectively absorbing the collision energy and improving the energy absorption efficiency and reliability.
[0039] A force sensor 12 is fixedly connected to the back of the general mounting frame 3, and a receiving opening adapted for the force sensor 12 is opened on the inner side of the back plate frame 5. The introduction of the force sensor 12 can monitor the force condition of the steering tube energy absorption structure during the collision in real time, and provide timely and accurate feedback information to the vehicle's safety system, thereby triggering protective measures when necessary, such as airbag popping out, etc., further improving the safety of passengers.
[0040] In addition, the upper pipe column 1 and the lower pipe column 2 are usually made of high-strength, lightweight materials, such as high-strength steel or aluminum alloy, to ensure sufficient strength and toughness when subjected to collision impact.
[0041] The design of the main mounting frame 3 takes lightweighting into full consideration, utilizing high-strength, low-density materials such as aluminum alloy and carbon fiber to reduce overall weight. This not only helps improve vehicle fuel economy but also reduces inertial forces during a collision, further protecting passenger safety.
[0042] The energy absorbing strip 8 is usually made of a high-strength, high-toughness material, such as a special alloy or composite material, and its performance needs to meet the requirements of being able to quickly absorb and disperse energy when subjected to a collision impact to reduce damage to passengers.
[0043] The energy-absorbing structure's design offers high flexibility and can be customized to suit different vehicle models, collision safety standards, and specific customer needs. This ensures its widespread adoption in a wide range of vehicles, providing comprehensive passenger safety.
[0044] The working principle of the above embodiment is:
[0045] The upper column 1 and lower column 2 of the vehicle's collapsible steering tube energy absorption structure are movably connected to the main mounting frame 3 via a connecting sleeve 4. In the event of a collision, the connecting sleeve 4 can respond to the impact force and relatively displace within a pre-set movable opening on the main mounting frame 3. This design allows the steering tube to initially absorb and disperse the collision energy through displacement when subjected to external forces, significantly reducing direct impact on the upper column 1 and lower column 2.
[0046] The auxiliary assembly consists of a rotating frame 9 and four elastic telescopic rods 10, which are connected to the connecting sleeve 4 and together form an additional energy absorption path. When a collision occurs, the rotating frame 9 drives the elastic telescopic rods 10 to elastically deform under the action of the impact force. The deformation process of the elastic telescopic rods 10 is a highly efficient energy absorption process, which can further absorb and disperse the collision energy, thereby improving the overall energy absorption efficiency of the structure. In addition, the four elastic telescopic rods 10 are evenly distributed at the four corners of the bottom of the rotating frame 9, ensuring the balance and stability of the rotating frame 9 when subjected to force, and avoiding the risk of structural distortion or damage.
[0047] Energy-absorbing strip 8, a key component of the energy-absorbing assembly, is slidably connected to fixing bolt 7 via a sliding joint. During a collision, fixing bolt 7 slides up and down along the energy-absorbing strip under the impact force. The unique sliding joint design of energy-absorbing strip 8 gradually narrows in width along the vertical direction, resulting in gradually increasing resistance during sliding. This design enables energy-absorbing strip 8 to more effectively absorb collision energy, improving energy absorption efficiency and reliability. Furthermore, the fixed connection between energy-absorbing strip 8 and the vehicle body ensures its stability during a collision, further enhancing the structure's energy-absorbing capacity.
[0048] The force sensor 12 installed on the back of the main mounting frame 3 can monitor the force conditions of the steering tube energy absorption structure during the collision in real time. When a collision occurs, the force sensor 12 can quickly capture and transmit the force information to the vehicle's safety system. The safety system triggers corresponding protection measures in time according to the feedback information of the force sensor, such as airbag popping out, thereby further improving the safety of passengers.
Claims
1. An automobile collapse-type steering tube energy absorption structure, comprising an upper tube column (1), a lower tube column (2) and a general mounting frame (3), characterized in that: A connecting sleeve (4) is sleeved between opposite ends of the upper pipe column (1) and the lower pipe column (2), and an energy absorbing component for absorbing energy is provided on the back of the general mounting frame (3); The energy absorbing assembly comprises a back plate frame (5) fixedly connected to the back of the general mounting frame (3), two bolt connection cylinders (6) fixedly connected to the inner rear side wall of the back plate frame (5), a fixing bolt (7) threadedly connected to the inner side of the bolt connection cylinder (6), and an energy absorbing belt (8) slidably connected to the outer side of the fixing bolt (7); An auxiliary component for enhancing the energy absorption effect is provided on the outer side of the connecting sleeve (4).
2. The automobile collapse-type steering tube energy absorption structure according to claim 1, characterized in that: The upper surface and the bottom of the general mounting frame (3) are both provided with movable openings adapted to the connecting sleeve (4), and the connecting sleeve (4) is movably connected to the general mounting frame (3) via the movable openings on the upper and lower sides.
3. The automobile collapse-type steering tube energy absorption structure according to claim 1, characterized in that: The auxiliary component comprises a rotating frame (9) rotatably connected to the outside of the connecting sleeve (4) and four elastic telescopic rods (10) fixedly connected to the bottom of the rotating frame (9).
4. The automobile collapse-type steering tube energy absorption structure according to claim 3, characterized in that: The four elastic telescopic rods (10) are respectively arranged at the four corners of the bottom of the rotating frame (9), and the bottom ends of the elastic telescopic rods (10) are fixedly connected to the inner bottom wall of the main mounting frame (3).
5. The automobile collapse-type steering tube energy absorption structure according to claim 3, characterized in that: Two slides (11) are fixedly connected to the front of the rotating frame (9), and two slide grooves adapted to the slides (11) are provided on the front of the general mounting frame (3).
6. The automobile collapse-type steering tube energy absorption structure according to claim 1, characterized in that: The two bolt connection cylinders (6) are respectively arranged on the left part and the right part of the inner rear side wall of the back plate frame (5), and the general mounting frame (3) is located between the two bolt connection cylinders (6).
7. The automobile collapse-type steering tube energy absorption structure according to claim 1, characterized in that: The energy absorbing belt (8) is fixedly connected to the vehicle body, and a sliding opening adapted to the fixing bolt (7) is provided on the inner side of the energy absorbing belt (8), and the sliding opening gradually narrows along the upper and lower directions of the energy absorbing belt (8).
8. The automobile collapse-type steering tube energy absorption structure according to claim 1, characterized in that: A force sensor (12) is fixedly connected to the back of the general mounting frame (3), and an accommodating opening adapted to the force sensor (12) is provided on the inner side of the back plate frame (5).