CN202783335U

CN202783335U - Collision anti-shedding mechanism for steering column

Info

Publication number: CN202783335U
Application number: CN 201220355197
Authority: CN
Inventors: 沈维
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2012-07-18
Filing date: 2012-07-18
Publication date: 2013-03-13
Anticipated expiration: 2022-07-18

Abstract

The utility model discloses a collision anti-shedding mechanism for a steering column. The collision anti-shedding mechanism for the steering column comprises a crossbeam support connected with a crossbeam of an instrument stand, and an adjustment support arranged on the crossbeam support and a supporting shell frame fixedly connected onto the steering column form angular adjustment fit of the steering column. Separation supports extend from two sides of the outer wall of the steering column, the separation supports and guide supporting portions arranged on the crossbeam support are in slidable fit, and the slidable limiting direction of slidable fit is identical to the axial direction of the steering column before collision. By means of constraint coordination of the guide supporting portions and the separation supports, the steering column and a steering wheel in collision are in collapse displacement under the constrained limited state, so that the direction and action of the steering wheel is convenient to control and operable even if the position of the steering wheel is in collapse displacement.

Description

Steering gear collision anti-falling mechanism

Technical field

The utility model belongs to the steering system field, specifically is exactly the support fixing fitting of Steering gear.

Background technology

At present, bearing circle adopts collapsing structure can prevent effectively that bearing circle is to the direct impact extrusion injury of navigating mate during vehicle collision, but for the tubular column structure that only has the crumple function, the situation that can fall or drop in the time of its crumple, make the crumple process unstable, and the operability of collision rear steering is reduced, also can cause threat on the safety to chaufeur to a certain extent.This is because the slippage piece that is connected with overarm brace is when separating with the adjusting support, bearing circle and Steering gear and adjusting are propped up the disjunctor assembly that is configured to and are naturally fallen without support because of top, its attitude is any whereabouts shape, like this will be to leg and the injury of belly pinch of chaufeur.For this reason, name is called " with the Steering gear of collision anti-drop mechanism " (patent No. CN200720312087.1), although a kind of technical scheme of this patent disclosure realizes Steering gear and still keep setting angle after the collision crumple, but concrete structure is comparatively complicated and be unfavorable for assembling in its scheme, between the stroke of simultaneously its specific installation site and collision crumple the interference generation is arranged.

Summary of the invention

The purpose of this utility model provides a kind of Steering gear collision anti-falling mechanism, avoids dropping after the Steering gear collision crumple, and the crumple direction of guaranteeing the Steering gear collision is axial consistent with former tubing string.

For achieving the above object, the utility model has adopted following technical scheme: a kind of Steering gear collision anti-falling mechanism, comprise the overarm brace that links to each other with the instrument calibration crossbeam, be provided with on the overarm brace and regulate the angular adjustment that the holder shell that is connected on support and the Steering gear is configured to Steering gear and cooperate, it is characterized in that: to the both sides extension separating support is set on the described Steering gear outer wall, the guiding holder support part that arranges on separating support and the overarm brace consists of slippage and cooperates, and slippage cooperates the sliding and position limitation direction that consists of and collides the axial consistent of front Steering gear.

As shown from the above technical solution, when bumping, because bearing circle is subject to the effect of impulsive force, bearing circle, Steering gear moves or claims crumple to move to the direction away from chaufeur together with separating support, because the setting of guiding holder support part, guiding holder support part will retrain and limit the mobile route of separating support, in this crumple moving process, lead and hold in the palm the sliding and position limitation direction of support part and separating support slippage cooperation and collide the axial consistent of front Steering gear, so just avoided bearing circle, the free style of the Steering gear state that drops, but keep moving along the spacing direction of constrained designs, thereby the life safety of chaufeur when having guaranteed collision.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the local enlarged diagram among Fig. 1;

Fig. 3 is the structural representation of steel band in the utility model.

The specific embodiment

A kind of Steering gear collision anti-falling mechanism, comprise the overarm brace 10 that links to each other with the instrument calibration crossbeam, be provided with on the overarm brace 10 and regulate the angular adjustment that the holder shell that is connected on support 11 and the Steering gear 20 is configured to Steering gear 20 and cooperate, to the both sides extension separating support 21 is set on described Steering gear 20 outer walls, the guiding holder support part that arranges on separating support 21 and the overarm brace 10 consists of slippage and cooperates, and slippage cooperates the sliding and position limitation direction that consists of and collides the axial consistent of front Steering gear 20.By such scheme as can be known, core of the present utility model is exactly the setting of guiding holder support part, cooperate with the constraint of separating support 21 by guiding holder support part, make when collision occurs, Steering gear 20 and bearing circle are under the spacing state of constraint and carry out the crumple displacement, although so just guaranteed that the position of bearing circle crumple occurred and moved, its direction and attitude are in is convenient to control and operable state.

As Figure 1-3, as preferred version, described guiding holder support part is a steel band 30, the two ends of steel band 30 and overarm brace 10 are connected, there is strip through-hole 311 in the stage casing of steel band 30, through hole 311 is for connecting the above-below direction setting of steel band 30 belt bodies, the plate face of separating support 21 be attached to steel band 30 below, the projection 22 of T shape is set on the separating support 21, the shaft top, minor diameter that increased diameter head is positioned at steel band 30 is positioned at through hole 311 and both sizes are coincide, and the length direction of through hole 311 is axial consistent with Steering gear 20.

Adopt steel band 30 to realize that the constraint in the separating support 21 crumple processes is had outstanding advantage, the structure of first steel band 30 self has guaranteed that its weight is limited and can not increase the too many quality of steering hardware; Its two, the material of steel band self can guarantee to possess failure-free intensity and realize holder support effect to Steering gear 20, separating support 21 and bearing circle; Its three, steel band possesses good antitorque curved deformation behavior, has superior comformability for uncertain collision deformation.

Referring to accompanying drawing 3, steel band 30 integral body that consist of guiding holder support part are bending shape, through hole 311 is positioned on the stage casing 31, the rear and front end in stage casing 31 has respectively inner section 32 and outer section 34, the bending angle of stage casing 31 and inner section 32 is in obtuse angle, stage casing 31 with outer section 34 both be parallel to each other and the transition phase 33 of rising shape arranged between the two, outer section 34 outer end is in turn downwards, the

bending segment

35,36 that bends to the inside consists of notches 37, the axially parallel of the sensing of notch 37 and Steering gear 20.

In in the above-mentioned statement, in, the definition of outer position relationship understands by description below, for steering hardware, be outer or the outside near a side of bearing circle, with it corresponding be exactly in or the inboard, the category in just belonging between inside and outside; Moreover the shaft of tubing string is inner low outer high oblique arrangement states.

As shown in the figure, described notch 37 is equipped with slippage piece 40, and the upper face of the lower face of slippage piece 40 and separating support 21 is fitted, and the upper outside edge of slippage piece 40 and separating support 21 is at notch 37 places.

The profile face parallel interval of the stage casing 31 of described steel band 30 and inner section 32 zone face and overarm brace 10 arranges that outer section 34 lower external face with overarm brace 10 fitted, and slippage piece 40 and outer section 34 are connected as a single entity by tie bolt and overarm brace 10.Slippage piece 40 is set realizes that steel band 30 outer ends are connected with the reliable of overarm brace 10, guarantee simultaneously the reservation of the spacing between stage casing 31 and outer section 34, namely guaranteed the profile face parallel interval layout of stage casing 31 with overarm brace 10, the volume spacing is exactly to hold the proportional space of projection 22 between the two.For the distortion adaptive capacity that improves simultaneously and improve steel band 30 convenient for assembly, the inner end of section 32 is connected by supporting pad or tubing string 12 transition with the outside face of overarm brace 10 in the steel band 30, guarantee stage casing 31 and inner section 32 zone face and the profile face parallel interval layout of overarm brace 10 of steel band 30, strengthened like this deformability of steel band 30, guarantee simultaneously the smooth slippage of projection 22, strengthened simultaneously the deformability of steel band 30.

Following brief description principle of work of the present utility model, Steering gear 20 is when bumping crumple, slippage piece 40 breaks away from separating support 21, slippage piece 40 still is fixed on the overarm brace 10, separating support 21 is inwards oblique along Steering gear 20 axis directions with Steering gear 20, down sliding, the outer end of steel band 30 is by slippage piece 40, the inner end is fixed on by tubing string 12 and keeps motionless on the overarm brace 10, cooperating of through hole 311 on the projection 22 of separating support 21 on the Steering gear 20 after the crumple by T shape and the steel band 30, steel band 30 plays holder support effect to it and avoids it to drop, still keep its original axial direction after Steering gear 20 crumples, this escapement is simple and reliable.

Claims

1. a Steering gear collides anti-falling mechanism, comprise the overarm brace (10) that links to each other with the instrument calibration crossbeam, be provided with on the overarm brace (10) and regulate the angular adjustment that the holder shell that is connected on support (11) and the Steering gear (20) is configured to Steering gear (20) and cooperate, it is characterized in that: to the both sides extension separating support (21) is set on described Steering gear (20) outer wall, the upper guiding holder support part that arranges of separating support (21) and overarm brace (10) consists of slippage and cooperates, and slippage cooperates the sliding and position limitation direction that consists of and collides the axial consistent of front Steering gear (20).

2. Steering gear according to claim 1 collides anti-falling mechanism, it is characterized in that: described guiding holder support part is a steel band (30), the two ends of steel band (30) and overarm brace (10) are connected, there is strip through-hole (311) in the stage casing of steel band (30), through hole (311) is for connecting the above-below direction setting of steel band (30) belt body, the plate face of separating support (21) be attached to steel band (30) below, the projection (22) of T shape is set on the separating support (21), increased diameter head be positioned at steel band (30) above, the shaft of minor diameter is positioned at through hole (311) and both sizes are coincide, and the length direction of through hole (311) is axial consistent with Steering gear (20).

3. Steering gear according to claim 2 collides anti-falling mechanism, it is characterized in that: steel band (30) integral body of described formation guiding holder support part is bending shape, through hole (311) is positioned on the stage casing (31), the rear and front end in stage casing (31) has respectively inner section (32) and outer section (34), the bending angle of stage casing (31) and inner section (32) is in obtuse angle, both are parallel to each other stage casing (31) and outer section (34) and the transition phase (33) of rising shape are arranged between the two, the outer end of outer section (34) is downward in turn, the bending segment (35 that bends to the inside, 36) consist of notch (37), the axially parallel of the sensing of notch (37) and Steering gear (20).

4. Steering gear according to claim 3 collides anti-falling mechanism, it is characterized in that: described notch (37) is equipped with slippage piece (40), the upper face of the lower face of slippage piece (40) and separating support (21) is fitted, and the upper outside edge of slippage piece (40) and separating support (21) locates at notch (37).

5. Steering gear according to claim 3 collides anti-falling mechanism, it is characterized in that: the profile face parallel interval of the stage casing (31) of described steel band (30) and the zone face of inner section (32) and overarm brace (10) is arranged, fit with the lower external face of overarm brace (10) outer section (34), and slippage piece (40) and outer section (34) are connected as a single entity by tie bolt and overarm brace (10).