CN219096795U - Energy absorption and release device for steering column - Google Patents

Abstract

The utility model discloses an energy absorption and release device for a steering column, which comprises the steering column, wherein the steering column is arranged in a column support, a support cover plate is arranged on the column support, a retainer and a slipping sheet are arranged on the support cover plate, an inlet is arranged at the top of one side of the retainer, an arc-shaped channel is arranged in the retainer, an outlet is arranged at the bottom of the other side of the retainer, and the slipping sheet stretches into the arc-shaped channel of the retainer to form an integral structure and is clamped on the support cover plate. The scheme has simple structure and convenient manufacture, changes the existing steering column energy-absorbing connecting structure, and combines the energy-absorbing function and the releasing function into one.

Description

Energy absorption and release device for steering column

Technical Field

The utility model belongs to the field of automobile steering gears, and particularly relates to an energy absorption and release device for a steering column.

Background

The car collision time from start to end is about 0.1 seconds (100 milliseconds), while the time for a person to blink is about 250 milliseconds. In a vehicle crash, the energy absorbing steering column collapses to absorb energy from the crash, which in turn reduces the peak force to reduce damage to the driver. Energy absorbing steering columns have been applied since the last 60 th century, which may even be said to be the last chance for the driver to survive during a collision, as such energy absorbing steering columns are being used in a large number of automotive applications.

The energy absorption device of the steering column is divided into three parts, namely a release device, a guide device and an energy absorption element. The main function of the release device is that when the vehicle collides, the impact force causes the release device to deform and displace, and finally the steering column or the upper half part of the steering column is collapsed downwards. The main stream design of the energy absorbing element in the energy absorbing design is an energy absorbing steel belt. Dynamic resistance is generated by the shape change, the pumping friction and even the tearing of the energy-absorbing steel belt to absorb the impact energy in the collision process. The current design release and energy absorber elements are two separate pieces. The structure of current design, energy-absorbing original paper and release belong to two independent designs of simple structure, and the inside structure space of steering gear is insufficient, and the structure can be more optimized.

Disclosure of Invention

In order to solve the defects in the background technology, the scheme provides the steering column energy absorption and release device.

The utility model provides a steering column energy-absorbing adds release, includes the steering column, the steering column is located in the tubular column support, sets up the support apron on the tubular column support, be equipped with holder and slippage piece on the support apron, holder one side top is equipped with the import, and the inside arc passageway that is equipped with of holder, and the opposite side bottom of holder is equipped with the export, and slippage piece stretches into and forms overall structure behind the arc passageway of holder to the card is on the support apron.

Further, the slip piece divide into gleitbretter and lower gleitbretter, is connecting portion between gleitbretter and the lower gleitbretter, goes up gleitbretter and corresponds with lower gleitbretter and be equipped with the screw mounting mouth, and the inboard of going up the gleitbretter is equipped with the lug, and the tip of going up the gleitbretter is equipped with the energy-absorbing steel band of taking the portion of bending, and the tip of lower gleitbretter is equipped with the guide block that sets up downwards in the slant.

Further, the both sides of support apron are equipped with first installing port, second installing port, third connector, the holder is installed in first installing port, and the second installing port is used for the lug on the joint slip piece, the position of third connector corresponds with the screw installing port.

Further, the lug is semi-circular protruding structure, and the quantity of arranging of lug is two rows, the size of second mounting port matches with the size of two rows of lugs.

Further, the retainer is made of rubber.

The beneficial effects of this scheme are as follows:

the scheme has simple structure, combines the existing energy absorption and release elements into a whole, and effectively improves the energy absorption and release effect during collision on the premise of not carrying out large structural change.

When the vehicle collides, the collision impact can overcome the friction force between the slip sheet and the bracket cover plate, so that the energy-absorbing steel belt with the convex part at the end part of the slip sheet deforms, and finally the mounting point of the vehicle is separated from the mounting bracket, thereby achieving the effect of the release device in the energy-absorbing design.

After the vehicle mounting stud is separated from the bracket cover plate, only the front end of the slip sheet is connected with the bracket cover plate, the front end energy-absorbing steel belt of the slip sheet is further deformed along with the further proceeding of collision and impact, and dynamic power assistance is generated by the shape deformation, the drawing friction and even the tearing of the slip sheet, so that the effect of the energy-absorbing element is achieved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of a slip sheet of the present utility model;

FIG. 3 is a schematic view of the structure of the bracket cover plate of the utility model;

FIG. 4 is a view showing the construction of the inside of the cage of the present utility model;

fig. 5 is a schematic view of a combined structure of a retainer and a slip-off sheet according to the present utility model.

Description of the reference numerals: steering column 1, column support 2, support apron 3, holder 4, slip piece 5, import 6, arc passageway 7, export 8, upper gleitbretter 9, lower gleitbretter 10, connecting portion 11, screw mounting hole 12, lug 13, bending portion 14, energy-absorbing steel band 15, guide block 16, first mounting hole 17, second mounting hole 18, third connector 19.

Detailed Description

The utility model provides a steering column energy-absorbing adds release, includes steering column 1, steering column 1 locates in tubular column support 2, sets up support apron 3 on the tubular column support 2, be equipped with holder 4 and slippage piece 5 on the support apron 3, holder 4 one side top is equipped with import 6, and holder 4 inside is equipped with arc passageway 7, and holder 4's opposite side bottom is equipped with export 8, and slippage piece 5 stretches into behind the arc passageway 7 of holder 4 from the import and forms overall structure to the card is on support apron 3.

In connection with fig. 2, the sliding piece 5 is divided into an upper sliding piece 9 and a lower sliding piece 10, a connecting part 11 is arranged between the upper sliding piece 9 and the lower sliding piece 10, a screw mounting opening 12 is correspondingly arranged between the upper sliding piece 9 and the lower sliding piece 10, a bump 13 is arranged on the inner side of the upper sliding piece 9, an energy absorption steel belt 15 with a bending part 14 is arranged at the end part of the upper sliding piece 9, and a guide block 16 which is obliquely arranged downwards is arranged at the end part of the lower sliding piece 10. The protruding blocks 13 are of a semicircular protruding structure, the number of the protruding blocks 13 is two, and the size of the second mounting opening 18 is matched with the size of the two rows of protruding blocks 13. Because the overall shape of the slip-off tab 5 is curved, the presence of the guide block 16 makes it easier to load the slip-off tab 5 obliquely onto the bracket cover 3 during installation of the diverter.

Referring to fig. 3, a first mounting opening 17, a second mounting opening 18, and a third connecting opening 19 are provided on two sides of the bracket cover 3, the retainer 4 is mounted in the first mounting opening 17, the second mounting opening 18 is used for being clamped with the protruding block 13 on the sliding piece 5, and the position of the third connecting opening 19 corresponds to the screw mounting opening 12. The screw mounting opening 12 is provided with a mounting stud for integrally connecting the slip-off sheet with the vehicle.

The working principle of the utility model is as follows:

when the vehicle collides, a driver collides with the steering wheel secondarily in the vehicle, the steering column 1 moves downwards under the action of collision force, the column support 2 and the support cover plate 3 also move along with the steering column, the slip sheet 5 is kept integrally with the vehicle through the mounting studs, the protruding block 13 is gradually separated from the second mounting opening 18, the steering column is further moved downwards by the collision force along with the slip sheet, and the energy-absorbing steel belt 15 of the slip sheet 5 is assembled in the retainer 4 and is substantially tightly connected with the steering column 1, the collision force further drives the retainer 4 to move downwards, and the arc-shaped channel 7 in the retainer pulls the bending part 14 of the energy-absorbing steel belt 15 to deform. When collision continues, the slipping piece 5 is completely deformed and separated from the bracket cover plate 3 under the fixing action of the mounting studs, and finally, the release and energy absorption effects are achieved.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (5)

1. The utility model provides a steering column energy-absorbing adds release, includes the steering column, in the steering column locates the tubular column support, set up the support apron on the tubular column support, its characterized in that is equipped with holder and slippage piece on the support apron, holder one side top is equipped with the import, and the inside arc passageway that is equipped with of holder, and the opposite side bottom of holder is equipped with the export, and slippage piece stretches into and forms overall structure behind the arc passageway of holder to the card is on the support apron.

2. The steering column energy-absorbing and releasing device according to claim 1, wherein the slipping piece is divided into an upper sliding piece and a lower sliding piece, a connecting part is arranged between the upper sliding piece and the lower sliding piece, screw mounting openings are correspondingly arranged on the upper sliding piece and the lower sliding piece, a bump is arranged on the inner side of the upper sliding piece, an energy-absorbing steel belt with a bending part is arranged at the end part of the upper sliding piece, and a guide block obliquely arranged downwards is arranged at the end part of the lower sliding piece.

3. The steering column energy absorption and release device according to claim 1, wherein a first mounting opening, a second mounting opening and a third connecting opening are formed in two sides of the bracket cover plate, the retainer is mounted in the first mounting opening, the second mounting opening is used for clamping the protruding block on the sliding piece, and the position of the third connecting opening corresponds to the screw mounting opening.

4. A steering column energy absorbing and releasing device as set forth in claim 3, wherein said projections are of a semicircular convex structure, the number of the projections is two, and the size of said second mounting opening is matched with the size of the projections of the two rows.

5. A steering column energy absorbing and releasing device as claimed in claim 3, wherein said retainer is made of rubber material.

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