Crumple guide strip and vehicle steering column connecting structure

Abstract

The utility model discloses a crumple guide strip and a vehicle steering column connecting structure. The crumple guide strip comprises an elastic crumple guide strip body, a U-shaped groove is formed in the bottom of the crumple guide strip body, the bottoms of the two side walls of the U-shaped groove are fixedly connected with elastic extending parts extending along the side walls respectively, and the extending parts are bent in the direction away from the U-shaped groove. According to the utility model, the extension part is additionally arranged on the side wall of the U-shaped groove of the crumple guide strip body, and the extension part is propped against the connecting bracket, so that a gap between the crumple guide strip and the connecting bracket is reduced. Meanwhile, due to the fact that the crumple guide strip body and the extending part are elastic, elastic deformation can occur when the crumple guide strip body and the extending part are compressed, the extending part is bent, when elastic deformation occurs, the contact area between the crumple guide strip body and the connecting support can be increased, friction force can be increased, movement of the connecting support towards the guide groove is reduced, and knocking noise is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle related technical field, especially a kind of collapse guide strip and vehicle steering column connecting structure. BACKGROUND

[0002] As shown in Figure 1 And Figure 2 The prior art vehicle steering column, connecting member 5' is used to connect adjusting bracket 4' with guide slot 8' fixed on outer tube 3' of tube column, outer tube 3' of tube column is sleeved outside main shaft 2', collapse guide strip 1' is used to cover connecting member 5', and bolt 10' is used to fix guide strip shell 9' on outer shell 7' of tube column to cover collapse guide strip 1' and connecting member 5'.

[0003] However, when the length of the steering column of the vehicle is adjusted, adjusting bracket 4' will collide with guide slot 8' radially, thus producing knocking noise, which affects the noise, vibration and harshness (NVH) performance. Especially when the direction is changed, the noise is more obvious.

[0004] The inventor found that the reason for the above problem is that there is a gap between adjusting bracket 4' and collapse guide strip 1'. Therefore, as shown in Figure 3 And Figure 4 When the adjusting direction is changed, the clockwise / counter-clockwise bending torque transmitted by adjusting motor 6' to adjusting bracket 4' will produce a downward force, which will cause adjusting bracket 4' to collide with guide slot 8' radially, thus producing knocking noise. CONTENT OF THE UTILITY MODEL

[0005] Therefore, it is necessary to provide a collapse guide strip and a vehicle steering column connecting structure to solve the technical problem that the prior art produces knocking noise when the length of the steering column is adjusted.

[0006] The utility model provides a kind of collapse guide strip, including the collapse guide strip body with elasticity, the bottom of the collapse guide strip body is equipped with U-shaped groove, the bottom of the two side walls of the U-shaped groove is respectively connected and fixed with the extension of the side wall with elasticity, the extension is bent away from the direction of the U-shaped groove.

[0007] Further, the extension part comprises a first extension segment, a second extension segment and a third extension segment, one end of the first extension segment is connected with the side wall, the other end of the first extension segment is connected with one end of the second extension segment, the other end of the second extension segment is connected with one end of the third extension segment, the second extension segment is bent away from the U-shaped groove, and forms a first included angle with the first extension segment, the third extension segment is bent away from the U-shaped groove, and forms a second included angle with the second extension segment.

[0008] Further, the first included angle is 115°-125°.

[0009] Further, the second included angle is 145°-155°.

[0010] Further, the first extension segment is perpendicular to the side wall.

[0011] Further, the distance from the outer connecting point of the first extension segment and the second extension segment to the side wall is 0.6-1.2 mm.

[0012] Further, the distance from the inner connecting point of the second extension segment and the third extension segment to the side wall is 1.13-1.73 mm.

[0013] Further, the collapse guide strip is a rubber collapse guide strip.

[0014] Further, the collapse guide strip body is integrally formed with the extension part.

[0015] The utility model provides a kind of vehicle steering column connecting structure, comprising: steering column and as described in collapse guide strip, the steering column includes main shaft, pipe column outer tube, adjusting support, connecting piece, adjusting motor, pipe column shell, guide slot and guide strip shell, the pipe column outer tube is covered in the main shaft outside, the pipe column shell is covered in the pipe column outer tube outside, the pipe wall of the pipe column outer tube is connected and fixed the guide slot, the connecting piece passes through the adjusting support and is inserted into the guide slot, the adjusting motor is fixed relative to the pipe column shell, the rotating shaft of the adjusting motor is connected with the adjusting support by motor nut, the U-shaped groove of the collapse guide strip covers the connecting piece, the extension part is in contact with the adjusting support, the guide strip shell covers the collapse guide strip and is connected with the pipe column shell.

[0016] The utility model discloses a U -shaped groove's side wall of the collapsible guiding strip body has increased the extension, and through the extension and the contact of connecting support, thereby reducing the clearance between collapsible guiding strip and connecting support. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the schematic diagram of prior art steering column structure;

[0018] Figure 2 It is the sectional view of prior art steering column;

[0019] Figure 3 It is the schematic diagram of prior art steering column knocking noise analysis;

[0020] Figure 4 It is the schematic diagram of prior art steering column torque transmission;

[0021] Figure 5 It is the structure schematic diagram of one embodiment of the utility model a collapsible guiding strip;

[0022] Figure 6 It is the front view of one embodiment of the utility model a collapsible guiding strip;

[0023] Figure 7 It is the sectional view of one embodiment of the utility model a collapsible guiding strip;

[0024] Figure 8 It is Figure 7 the enlarged view of area A of

[0025] Figure 9 It is the explosion drawing of the utility model a vehicle steering column connecting structure;

[0026] Figure 10 It is the structure schematic diagram of the utility model a vehicle steering column connecting structure.

[0027] MARK DESCRIPTION

[0028] 1', collapse guide strip; 2', main shaft; 3', pipe column outer tube; 4', adjusting support; 5', connecting piece; 6', adjusting motor; 7', pipe column shell; 8', guide groove; 9', guide strip shell; 10', bolt; 1, collapse guide strip; 11, collapse guide strip body; 12, U-shaped groove; 121, side wall; 13, extension; 131, first extension section; 132, second extension section; 133, third extension section; 134, outer connecting point; 135, inner connecting point; 2, main shaft; 3, pipe column outer tube; 4, adjusting support; 5, connecting piece; 6, adjusting motor; 7, pipe column shell; 8, guide groove; 9, guide strip shell; 10, bolt. DETAILED DESCRIPTION

[0029] The specific embodiments of the utility model will be further described below in combination with the drawings. Identical parts are denoted by identical reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.

[0030] As Figure 5 shown is a collapse guide strip 1 according to an embodiment of the utility model, comprising a collapse guide strip body 11 with elasticity, a U-shaped groove 12 is formed at the bottom of the collapse guide strip body 11, the bottoms of the two side walls 121 of the U-shaped groove 12 are respectively connected and fixed with elastic extensions 13 extending along the side walls 121, and the extensions 13 are bent away from the U-shaped groove 12.

[0031] Specifically, as Figure 5 shown, the collapse guide strip 1 comprises a collapse guide strip body 11, the collapse guide strip body 11 has elasticity and can be elastically deformed. A U-shaped groove 12 is formed at the bottom of the collapse guide strip body 11, and the U-shaped groove 12 is used to accommodate the connecting piece 5 during installation. At the bottoms of the two side walls 121 of the U-shaped groove 12, an extension 13 is respectively connected and fixed. The extension 13 has elasticity and can be elastically deformed. The extension 13 is used to contact the adjusting support 4 to reduce the gap between the collapse guide strip 1 and the adjusting support 4. At the same time, the extension 13 is bent to the two side edges of the collapse guide strip body 11, i.e. bent away from the U-shaped groove 12, so that when the extension 13 is elastically deformed, the contact area between the extension 13 and the adjusting support 4 is larger.

[0032] The utility model discloses a extension part is added to the side wall of the U -shaped groove of the collapse guide strip body, and the extension part is in abutment with the connecting support, thereby reducing the gap between the collapse guide strip and the connecting support.

[0033] As Figure 5 to Figure 8 The utility model discloses a collapse guide strip 1, including the elastic collapse guide strip body 11 of having, the bottom of collapse guide strip body 11 is equipped with the U -shaped groove 12, the bottom of both side walls 121 of U -shaped groove 12 is connected fixed with the elastic extension part 13 along the side wall 121 extension, the extension part 13 is bent to the direction away from U -shaped groove 12,

[0034] The extension part 13 includes a first extension segment 131, a second extension segment 132 and a third extension segment 133, one end of the first extension segment 131 is connected with the side wall 121, the other end is connected with one end of the second extension segment 132, the other end of the second extension segment 132 is connected with one end of the third extension segment 133, the second extension segment 132 is bent to the direction away from the U-shaped groove 12, and forms a first included angle with the first extension segment 131, the third extension segment 133 is bent to the direction away from the U-shaped groove 12, and forms a second included angle with the second extension segment 132.

[0035] The collapse guide strip 1 is a rubber collapse guide strip, and the collapse guide strip body 11 and the extension part 13 are integrally formed.

[0036] In one embodiment, the first included angle is 115°-125°. Preferably, the first included angle is 120°.

[0037] In one embodiment, the second included angle is 145°-155°. Preferably, the second included angle is 150°.

[0038] Preferably, the first extension segment 131 is perpendicular to the side wall 121.

[0039] In one embodiment, the distance a from the outer connecting point 134 of the first extension segment 131 and the second extension segment 132 to the side wall 121 is 0.6-1.2 mm. Preferably, the distance from the outer connecting point of the first extension segment 131 and the second extension segment 132 to the side wall is 0.9 mm.

[0040] In one of the embodiments, the distance b from the inner connecting point 135 of the second extending section 132 and the third extending section 133 to the side wall 121 is 1.13mm-1.73mm. Preferably, the distance from the inner connecting point 135 of the second extending section 132 and the third extending section 133 to the side wall 121 is 1.43mm.

[0041] Specifically, as shown in Figure 5 and Figure 6 the collapse guiding strip 1 comprises a collapse guiding strip body 11 with elasticity, a U-shaped groove 12 is formed at the bottom of the collapse guiding strip body 11, and the two side walls 121 of the U-shaped groove 12 are respectively connected and fixed with elastic extending sections 13 extending along the side walls 121, and the extending sections 13 are bent away from the U-shaped groove 12.

[0042] As shown in Figure 7 and Figure 8 the extending section 13 comprises a first extending section 131, a second extending section 132 and a third extending section 133. Wherein:

[0043] The first extending section 131 is connected with the side wall 121 at one end, and preferably, the first extending section 131 is connected with the side wall 121 perpendicularly. The other end of the first extending section 131 is connected with one end of the second extending section 132, the second extending section 132 is bent to the two side edges of the collapse guiding strip body 11, i.e. bent away from the U-shaped groove 12, so that the first extending section 131 and the second extending section 132 form a first included angle. Preferably, the first included angle is 120°.

[0044] The width of the first extending section 131 is relatively short. The width of the first extending section 131 is the distance from the outer connecting point of the first extending section 131 and the second extending section 132 to the side wall. Preferably, the width of the first extending section 131 is 0.9mm.

[0045] The other end of the second extending section 132 is connected with one end of the third extending section 133, the third extending section 133 is bent to the two side edges of the collapse guiding strip body 11, i.e. bent away from the U-shaped groove 12, so that the second extending section 132 and the third extending section 133 form a second included angle. Preferably, the second included angle is 150°. The third extending section 133 has a larger contact area with the adjusting bracket 4 after being bent, so as to improve the friction.

[0046] The extension part of the embodiment is three parts, which increases the contact area with the adjusting support by bending, and improves the friction. At the same time, the material of the collapse guide strip is rubber, which is convenient for elastic deformation. Finally, the collapse guide strip body and the extension part are integrally formed, which is convenient for manufacturing. Since the gap between the collapse guide strip and the adjusting support is reduced, the moving distance of the adjusting support and the guide groove is reduced from 0.27mm to 0.19mm, so that the knocking noise problem is improved, and the NVH performance is improved.

[0047] As shown in Figure 9 and Figure 10 The utility model discloses a vehicle steering column connecting structure, it includes: steering column and as described in preceding collapse guide strip 1, steering column includes main shaft 2, pipe column outer tube 3, adjusting support 4, connecting piece 5, adjusting motor 6, pipe column shell 7, guide groove 8 and guide strip shell 9, pipe column outer tube 3 is covered in main shaft 2 outside, pipe column shell 7 is covered in pipe column outer tube 3 outside, the pipe wall of pipe column outer tube 3 is connected and fixed guide groove 8, connecting piece 5 passes through adjusting support 4 and inserts guide groove 8, adjusting motor 6 is fixed relative to pipe column shell 7, the rotation axis of adjusting motor 6 is connected with adjusting support 4 through motor nut, the U type groove 12 of collapse guide strip 1 covers connecting piece 5, and extension part 13 is in contact with adjusting support 4, and guide strip shell 9 covers collapse guide strip 1 and is connected with pipe column shell 7.

[0048] Specifically, when installing, guide groove 8 is fixed on the pipe wall of pipe column outer tube 3. Connecting piece 5 is inserted into guide groove 8 after passing through adjusting support 4. Then place the collapse guide strip 1 of the embodiment outside connecting piece 5, the U type groove 12 of collapse guide strip 1 covers connecting piece 5, and extension part 13 is in contact with the surface of adjusting support 4. Then cover collapse guide strip 1 with guide strip shell 9, and adopt bolt 10 to be bolted with pipe column shell 7. Among them, Figure 10 The guide strip shell 9 is partially cut open to show the internal elements. By pressing collapse guide strip 1 through guide strip shell 9, elastic deformation of collapse guide strip 1 occurs, and the gap between collapse guide strip 1 and adjusting support 4 is reduced.

[0049] Among them, the force transmission path is: adjusting motor 6->adjusting support 4->connecting piece 5->pipe column outer tube 3->main shaft 2.

[0050] The utility model discloses a extension part is added to the side wall of the U -shaped groove of the collapse guiding strip body, and the extension part is in abutment with the connecting support, thereby reducing the gap between the collapse guiding strip and the connecting support.

[0051] The above-mentioned embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but can not be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, a plurality of deformation and improvement can be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be the attached right claim.

Claims

1. A collapsible guide strip (1), characterized in that, It includes a flexible collapsible guide strip body (11), the bottom of which is provided with a U-shaped groove (12), and the bottom of the two side walls (121) of the U-shaped groove (12) are respectively connected and fixed with flexible extensions (13) extending along the side walls (121), and the extensions (13) are bent away from the U-shaped groove (12).

2. The collapsible guide strip (1) according to claim 1, characterized in that, The extension (13) includes a first extension section (131), a second extension section (132), and a third extension section (133). One end of the first extension section (131) is connected to the side wall (121), and the other end is connected to one end of the second extension section (132). The other end of the second extension section (132) is connected to one end of the third extension section (133). The second extension section (132) bends away from the U-shaped groove (12) and forms a first angle with the first extension section (131). The third extension section (133) bends away from the U-shaped groove (12) and forms a second angle with the second extension section (132).

3. The collapsible guide strip (1) according to claim 2, characterized in that, The first included angle is 115° to 125°.

4. The collapsible guide strip (1) according to claim 2, characterized in that, The second included angle is 145° to 155°.

5. The collapsible guide strip (1) according to claim 2, characterized in that, The first extension (131) is perpendicular to the sidewall (121).

6. The collapsible guide strip (1) according to claim 2, characterized in that, The distance from the outer connection point of the first extension segment (131) and the second extension segment (132) to the sidewall (121) is 0.6 mm to 1.2 mm.

7. The collapsible guide strip (1) according to claim 2, characterized in that, The distance from the inner connection point of the second extension segment (132) and the third extension segment (133) to the sidewall (121) is 1.13 mm to 1.73 mm.

8. The collapsible guide strip (1) according to claim 1, characterized in that, The collapse guide strip (1) is a rubber collapse guide strip.

9. The collapsible guide strip (1) according to any one of claims 1 to 8, characterized in that, The collapse guide strip body (11) and the extension (13) are integrally formed.

10. A vehicle steering column connection structure, characterized in that, include: A steering column and a collapsible guide strip (1) as described in any one of claims 1 to 9, the steering column comprising a main shaft (2), an outer tube (3), an adjusting bracket (4), a connector (5), an adjusting motor (6), a column housing (7), a guide groove (8), and a guide strip housing (9), the outer tube (3) being sleeved on the main shaft (2), the column housing (7) being sleeved on the outer tube (3), the wall of the outer tube (3) being connected to and fixed to the guide groove (8), the connector... The connector (5) passes through the adjusting bracket (4) and is inserted into the guide groove (8). The adjusting motor (6) is fixed relative to the tubular housing (7). The rotating shaft of the adjusting motor (6) is connected to the adjusting bracket (4) through the motor nut. The U-shaped groove (12) of the collapsible guide strip (1) covers the connector (5). The extension (13) abuts against the adjusting bracket (4). The guide strip housing (9) covers the collapsible guide strip (1) and is connected to the tubular housing (7).

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