Steering column crumple energy absorption structure and steering column assembly
By designing an installation bracket, upper column tube and intermediate bracket on the steering column, and using injection molding to connect the pull-out lock and guide groove, the problem of traditional steering columns reversing during collisions is solved, and a safe crumple energy absorption effect is achieved.
Patent Information
- Application Number
- CN202423032830.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Traditional steering columns are prone to reverse during a car collision and cannot effectively collapse, resulting in insufficient collapse force and an inability to provide safety protection in the first place.
The mounting bracket, upper column tube and intermediate bracket are designed, and the pull-out lock and guide groove are connected by injection molding to ensure that the intermediate bracket is disengaged from the pull-out lock during a collision, while the mounting bracket does not flip over, thereby achieving the crumple energy absorption effect of the steering column.
In the event of a collision, the middle bracket disengages from the pull-out lock to prevent the mounting bracket from flipping, ensuring the safe collapse of the steering column and providing safer protection.
Smart Images
Figure CN223407993U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile processing, in particular to a steering column collapse energy absorption structure and a steering column assembly. Background Art
[0002] As the number of cars on the road increases year by year, people's expectations for driving quality are becoming increasingly stringent. The upper section of the steering column and intermediate shaft assembly are the connecting components installed between the steering wheel and the steering gear. They are primarily responsible for controlling the vehicle's direction of travel, transmitting torque, and absorbing energy during collisions.
[0003] When a car is involved in a violent collision, the driver often leans forward due to the intense inertia, causing the chest to collide with the steering wheel. To protect the driver, the steering column must meet certain requirements for both collapse and collapse force. Traditional pull-off locks are injection-molded together with the mounting bracket welded assembly. This can easily cause the mounting bracket welded assembly to reverse when the steering column collapses, leading to poor collapse force. This also prevents the steering column from collapsing immediately after a collision. Therefore, to provide greater safety for end users, improvements to the steering column collapse mechanism are necessary. Utility Model Content
[0004] The utility model aims to provide a steering column collapse energy absorption structure and a steering column assembly, which have the effect of providing safer protection.
[0005] The above technical purpose of the present utility model is achieved through the following technical scheme: it includes a mounting bracket, an upper column tube and an intermediate bracket arranged on the upper column tube, a connecting rod is arranged on the top of the mounting bracket, the longitudinal section of the intermediate bracket is in a U-shape, one end of the intermediate bracket is symmetrically provided with a guide groove along the horizontal direction, and a pull-off lock is symmetrically provided on the inner side of the intermediate bracket, the pull-off lock is connected to the intermediate bracket by injection molding, and the connecting rod moves through the guide groove and the pull-off lock.
[0006] The present invention is further configured as follows: a first connecting block is provided on the pull-off lock, a first injection hole is provided on the first connecting block, and second injection holes that match the first injection hole are respectively provided on both sides of the intermediate bracket.
[0007] The present invention is further configured as follows: a second connecting block is provided on the side of the pull-off lock away from the first connecting block, a third injection hole is provided on the second connecting block, and fourth injection holes that match the third injection hole are respectively provided on both sides of the intermediate bracket.
[0008] The present invention is further configured as follows: a third connecting block is provided on one side of the pull-off lock, a fifth injection hole is provided on the third connecting block, and sixth injection holes that match the fifth injection hole are respectively provided on both sides of the intermediate bracket.
[0009] The present invention is further configured as follows: a fourth connecting block that matches the guide groove is provided on one side of the pull-off lock, and the fourth connecting block can be movably fitted to the inner wall of the guide groove.
[0010] The present invention is further configured such that: the cross section of the guide groove is rectangular.
[0011] The present invention is further configured as follows: the mounting bracket includes a bracket connecting plate and a U-shaped bracket arranged on the bracket connecting plate, and the connecting rod is arranged on the top of the U-shaped bracket.
[0012] The present invention is further configured as follows: an upper steering core shaft is provided at one end of the upper column tube.
[0013] The beneficial effects of the utility model are:
[0014] 1. By setting a connecting rod, a guide groove and a pull-off lock, two pull-off locks are injection molded on both sides of the middle bracket. In the event of a collision, the pull-off lock is sleeved on the connecting rod, and the connecting rod is set on the mounting bracket. Therefore, after the collision, the position of the pull-off lock will not change, and the upper column tube and the middle bracket will be subjected to the downward force caused by the collision. At this time, the middle bracket will be disengaged from the pull-off lock after being subjected to the force, and the middle bracket will be separated from the connecting rod along the guide groove. Therefore, the mounting bracket will not flip over, thereby achieving the effect of energy absorption of the steering column collapse, providing safer protection for end customers.
[0015] 2. By setting the first injection hole, the second injection hole, etc., the middle bracket and the two zipper latches are respectively connected by injection molding through the first injection hole, the third injection hole and the fifth injection hole located on the three sides of the zipper latch. Under the premise of ensuring that the middle bracket can be separated from the zipper latch in the event of a collision, the stability of the connection between the zipper latch and the middle bracket during daily use is ensured as much as possible.
[0016] 3. By providing the fourth connecting block, on the one hand, the positioning between the fourth connecting block and the guide groove facilitates injection molding between the release latch and the intermediate bracket; on the other hand, when a collision occurs, the connection between the release latch and the intermediate bracket is disconnected, and the fourth connecting block is limited, so that the intermediate bracket drives the upper column tube to separate in the direction away from the connecting rod, further guiding the intermediate bracket and ensuring that the steering column can collapse and absorb energy in the event of a collision. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 This is a structural schematic diagram of an embodiment of a steering column collapse energy absorption structure and a steering column assembly of the present invention;
[0019] Figure 2 This is a schematic diagram of the exploded structure of a steering column collapse energy absorption structure and a steering column assembly according to an embodiment of the present invention;
[0020] Figure 3 yes Figure 2 A is an enlarged schematic diagram.
[0021] In the figure, 1. mounting bracket; 1a. bracket connecting plate; 1b. U-shaped bracket; 2. upper column tube; 3. intermediate bracket; 4. connecting rod; 5. guide groove; 6. pull-off lock; 7. first connecting block; 8. first injection molding hole; 9. second injection molding hole; 10. second connecting block; 11. third injection molding hole; 12. fourth injection molding hole; 13. third connecting block; 14. fifth injection molding hole; 15. sixth injection molding hole; 16. fourth connecting block; 17. steering spindle. DETAILED DESCRIPTION
[0022] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.
[0023] The utility model provides a steering column collapse energy absorption structure and a steering column assembly, such as Figures 1 to 3 As shown, it includes a mounting bracket 1, an upper column tube 2 and an intermediate bracket 3 arranged on the upper column tube 2. A connecting rod 4 is arranged on the top of the mounting bracket 1. The longitudinal section of the intermediate bracket 3 is in the shape of a U-shape. One end of the intermediate bracket 3 is symmetrically provided with a guide groove 5 along the horizontal direction. A pull-off lock 6 is symmetrically provided on the inner side of the intermediate bracket 3. The pull-off lock 6 is connected to the intermediate bracket 3 by injection molding, and the connecting rod 4 moves through the guide groove 5 and the pull-off lock 6.
[0024] Furthermore, a first connection block 7 is provided on the pull-off lock 6 , a first injection hole 8 is provided on the first connection block 7 , and second injection holes 9 cooperating with the first injection hole 8 are respectively provided on both sides of the intermediate bracket 3 .
[0025] Furthermore, a second connecting block 10 is provided on the side of the pull-off lock 6 away from the first connecting block 7, and a third injection hole 11 is opened on the second connecting block 10. Fourth injection holes 12 that match the third injection hole 11 are respectively opened on both sides of the intermediate bracket 3.
[0026] Furthermore, a third connection block 13 is provided on one side of the pull-off lock 6 , a fifth injection hole 14 is opened on the third connection block 13 , and sixth injection holes 15 cooperating with the fifth injection hole 14 are respectively opened on both sides of the intermediate bracket 3 .
[0027] Furthermore, a fourth connecting block 16 that matches the guide groove 5 is provided on one side of the pull-off lock 6 , and the fourth connecting block 16 can be movably fitted to the inner wall of the guide groove 5 .
[0028] Furthermore, the cross section of the guide groove 5 is rectangular.
[0029] Furthermore, the mounting bracket 1 includes a bracket connecting plate 1 a and a U-shaped bracket 1 b arranged on the bracket connecting plate 1 a , and the connecting rod 4 is arranged on the top of the U-shaped bracket 1 b .
[0030] Furthermore, an upper steering core shaft 17 is provided at one end of the upper column tube 2.
[0031] Two pull-out locks 6 are injection molded on both sides of the intermediate bracket 3. In the event of a collision, since the pull-out locks 6 are sleeved on the connecting rod 4 and the connecting rod 4 is arranged on the mounting bracket 1, the position of the pull-out locks 6 will not change after the collision, and the upper column tube 2 and the intermediate bracket 3 will be subjected to the downward force caused by the collision. At this time, the intermediate bracket 3 will be separated from the pull-out locks 6 after being subjected to the force, and the intermediate bracket 3 will be separated from the connecting rod 4 along the guide groove 5. Therefore, the mounting bracket 1 will not flip over, thereby achieving the effect of energy absorption of the steering column collapse, providing safer protection for end customers.
[0032] By setting the first injection hole 8, the second injection hole 9, etc., the intermediate bracket 3 and the two zipper latches are injection-molded through the first injection hole 8, the third injection hole 11 and the fifth injection hole 14 located on the three sides of the zipper latches, respectively. Under the premise of ensuring that the intermediate bracket 3 can be separated from the zipper latch in the event of a collision, the stability of the connection between the zipper latch and the intermediate bracket 3 during daily use is ensured as much as possible.
[0033] By setting the fourth connecting block 16, on the one hand, the positioning between the fourth connecting block 16 and the guide groove 5 facilitates the injection molding between the zipper lock and the intermediate bracket 3; on the other hand, when a collision occurs, the connection between the zipper lock and the intermediate bracket 3 is disconnected, and the fourth connecting block 16 is limited, so that the intermediate bracket 3 drives the upper column tube 2 to separate in the direction away from the connecting rod 4, further realizing the guidance of the intermediate bracket 3, and ensuring that the steering column can achieve the effect of collapsing and absorbing energy in the event of a collision.
[0034] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.
[0035] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.
Claims
1. A steering column collapse energy absorption structure, characterized by: The invention comprises a mounting bracket (1), an upper column tube (2) and an intermediate bracket (3) arranged on the upper column tube (2); a connecting rod (4) is arranged on the top of the mounting bracket (1); the longitudinal section of the intermediate bracket (3) is in the shape of a square; one end of the intermediate bracket (3) is symmetrically provided with a guide groove (5) along the horizontal direction; a pull-off lock (6) is symmetrically provided on the inner side of the intermediate bracket (3); the pull-off lock (6) is connected to the intermediate bracket (3) by injection molding; and the connecting rod (4) moves through the guide groove (5) and the pull-off lock (6).
2. The steering column collapse energy absorption structure according to claim 1, characterized in that: The pull-off lock (6) is provided with a first connecting block (7), the first connecting block (7) is provided with a first injection hole (8), and the two sides of the intermediate bracket (3) are respectively provided with second injection holes (9) that match the first injection hole (8).
3. The steering column collapse energy absorption structure according to claim 2, characterized in that: A second connecting block (10) is provided on the side of the pull-off lock (6) away from the first connecting block (7), a third injection hole (11) is provided on the second connecting block (10), and fourth injection holes (12) that match the third injection hole (11) are respectively provided on both sides of the intermediate bracket (3).
4. The steering column collapse energy absorption structure according to claim 3, characterized in that: A third connecting block (13) is provided on one side of the pull-off lock (6), a fifth injection hole (14) is provided on the third connecting block (13), and sixth injection holes (15) that match the fifth injection hole (14) are respectively provided on both sides of the intermediate bracket (3).
5. The steering column collapse energy absorption structure according to claim 1, characterized in that: A fourth connecting block (16) that matches the guide groove (5) is provided on one side of the pull-off lock (6), and the fourth connecting block (16) can be movably fitted to the inner wall of the guide groove (5).
6. The steering column collapse energy absorption structure according to claim 1, characterized in that: The cross section of the guide groove (5) is rectangular.
7. A steering column assembly comprising the steering column crush energy absorption structure according to any one of claims 1 to 6, characterized in that: The mounting bracket (1) comprises a bracket connecting plate (1a) and a U-shaped bracket (1b) arranged on the bracket connecting plate (1a), and the connecting rod (4) is arranged on the top of the U-shaped bracket (1b).
8. The steering column assembly according to claim 7, characterized in that: An upper steering core shaft (17) is provided at one end of the upper column tube (2).