Steering column assembling structure

Abstract

The utility model belongs to the technical field of steering columns, and discloses a steering column assembly structure which comprises an upper tubular column and a lower tubular column which can move relative to the axial direction. A through groove with a curve path is formed in the wall face of the middle area of the lower pipe column, a local deformation part integrally formed on a main body part of the lower pipe column is formed in the area defined by the through groove, and a fastening mechanism is connected to the local deformation part so that the local deformation part can deform to tightly hold the upper pipe column. A gap between the upper tubular column and the lower tubular column can be eliminated, and good driving feeling is brought to a user.

Description

Technical Field

[0001] The utility model belongs to the technical field of steering columns, and in particular relates to a steering column assembly structure. Background Art

[0002] There is a structural difference between the electrically adjustable steering column and the manually adjustable steering column. After the steering wheel position is adjusted to the appropriate position, the manually adjustable steering column will lock the adjustment handle, and the upper and lower columns will then hold each other tightly, and the driver will not feel any lateral or vertical gap at the steering wheel end; the electrically adjustable steering column is adjusted through a drive mechanism, the steering wheel is assembled on the steering shaft, the lower column body is fixed to the mounting bracket with screws, and the mounting bracket is fixed to the CCB bracket of the vehicle. After the steering wheel position is adjusted, the upper and lower columns will not hold each other tightly, so the driver will feel a lateral or vertical gap at the steering wheel end, affecting the driving experience. Utility Model Content

[0003] In order to solve the above technical problems, the utility model discloses a steering assembly structure, which can eliminate the gap between the upper tube column and the lower tube column, and bring a good driving experience to the user.

[0004] The specific technical solution of the utility model is as follows:

[0005] A steering column assembly structure, comprising:

[0006] An upper pipe string and a lower pipe string that can move axially relative to each other;

[0007] Among them, a through groove with a curved path is opened on the wall surface of the middle area of ​​the lower tube column, and the area surrounded by the through groove forms a local deformation part integrally formed on the main body of the lower tube column. A fastening mechanism is connected to the local deformation part to enable the local deformation part to deform and hold the upper tube column.

[0008] After the area enclosed by the through groove forms a local deformation portion, it can be well wrapped on the upper tube column on the basis of cooperating with the fastening mechanism, which effectively avoids the occurrence of a gap between the upper tube column and the lower tube column, so that there can be at least partial contact between the two. In other words, after the position adjustment of the steering wheel is completed, the upper tube column is subjected to the tightening force of the lower tube column in the circumferential direction to ensure the position stability between the lower tube column and the upper tube column, and the user will not feel the gap during use, thereby effectively improving the user's experience; in addition, the structure is simple, the integrity is good, and it is easy to use.

[0009] Preferably, the fastening mechanism is connected between the local deformation part and the main body to drive the local deformation part to deform and hold the upper pipe column tightly; or

[0010] Two local deformation parts that are arranged opposite to each other are formed on the lower pipe column, and the fastening mechanism is connected between the two local deformation parts to drive at least one local deformation part to deform and hold the upper pipe column tightly.

[0011] The above structure is simple and can easily realize the relative movement between the local deformation part and the main body part, thereby meeting the requirement of the lower pipe column to hold the upper pipe column tightly.

[0012] Preferably, the fastening mechanism is a bolt, a clamp or an elastic member.

[0013] Bolts, clamps or elastic parts can all realize deformation driving of the local deformation part, so as to well achieve the purpose of the lower pipe column clamping the upper pipe column; and, the bolts, clamps or elastic parts can also conveniently and simply adjust the clamping force to adapt to different usage requirements.

[0014] Preferably, wear-resistant parts are provided on the inner side of the deformation portion and / or the outer side of the upper pipe column.

[0015] The wear-resistant parts themselves have high strength, rigidity and hardness, so that they can maintain stability and durability when friction occurs frequently, which is beneficial to improving the contact performance of the upper pipe column and the lower pipe column, thereby extending the service life.

[0016] Preferably, the wear-resistant part is configured as a wear-resistant coating, or the wear-resistant part is a plastic part.

[0017] The setting is simple, practical, low-cost, and can well meet usage requirements.

[0018] Preferably, the through groove comprises:

[0019] Gap 1 and Gap 2 are arranged perpendicular to the axis of the lower pipe string; and

[0020] A gap three is connected to the gap one and the gap two, and the gap three is parallel to the axis of the lower pipe column.

[0021] While ensuring the structural strength of the lower pipe column, the structure of the through groove can improve the mobility between the main body and the local deformation part, ensuring that the lower pipe column has sufficient clamping force.

[0022] Preferably, a reinforcing rib is provided at the root where the local deformation portion is connected to the main body.

[0023] The reinforcing ribs can provide connection strength between the local deformation part and the main body, preventing the local deformation part from cracking or falling off from the main body during the deformation process or continuing to maintain the deformation state, thereby effectively meeting the continuous use requirements.

[0024] Preferably, the reinforcing rib is parallel to gap one / gap two.

[0025] The structure is simple and stable. When the local deformation part is deformed, the reinforcement rib can maintain a strong connection performance between the root of the local deformation part and the main body. Moreover, the structure will not generate or generate excessive additional force to cause the set reinforcement rib to fail to meet the connection performance requirements between the root of the local deformation part and the main body.

[0026] Preferably, it also includes:

[0027] An adjusting assembly, wherein the adjusting assembly is arranged between the upper pipe string and the lower pipe string;

[0028] Among them, one of the adjustment component and the lower pipe column is provided with an adjustment groove, and the other is provided with an adjustment block that is slidably matched with the adjustment groove, and the adjustment groove and the adjustment block are interference-fitted.

[0029] The adjustment component can drive the axial movement of the upper column relative to the lower column. On the basis of the steering wheel being installed on the upper column, the position of the steering wheel can be adjusted, so that the steering wheel is located in a position suitable for the driver; and the adjustment groove and the adjustment block can avoid displacement errors during the adjustment process and ensure the stability of the position adjustment; there is a sliding connection relationship between the adjustment groove and the adjustment block, and on the basis of the interference fit between the two, it is further ensured that there is no offset between the adjustment groove and the adjustment block during the adjustment process, thereby ensuring that the axial adjustment process always moves along a preset straight line path, and on the basis of improving the adjustment efficiency and ensuring the adjustment stability, the requirements of adjustment accuracy are met.

[0030] Preferably, the adjustment assembly comprises a screw transmission member;

[0031] Wherein, the center line of the steering column, the center line of the adjustment slot and / or the adjustment block, and the center line of the lead screw are located in the same plane.

[0032] In the prior art, the setting of the lead screw is relatively offset, and its adjustment process may produce adjustment switching deflection. Since a combination switch is arranged around the upper column, the adjustment switching deflection may cause abnormal rotation of the combination switch, resulting in abnormal adjustment results, thereby bringing a poor user experience to the driver.

[0033] Compared with the prior art, the utility model can eliminate the gap between the upper tube column and the lower tube column without affecting the axial movement of the upper tube column relative to the lower tube column, thereby providing the user with a better use experience after the user adjusts the position of the steering wheel; the utility model has a simple and stable structure, is easy to use and has a long service life; in addition, the utility model can also avoid abnormal rotation of the combination switch caused by adjustment reversing deflection during the adjustment process of the upper tube column. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1A schematic diagram of an embodiment of the utility model;

[0035] Figure 2 for Figure 1 A front view of

[0036] Figure 3 for Figure 2 AA cross-section diagram.

[0037] In the figure: 1-upper pipe column; 2-lower pipe column; 21-main body; 22-local deformation part; 3-through groove; 31-gap one; 32-gap two; 33-gap three; 4-fastening mechanism; 5-locking block; 6-reinforcement rib; 7-adjustment groove; 8-adjustment block; 9-screw. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0039] like Figure 1 to Figure 3 As shown, a steering column assembly structure comprises an upper column 1 and a lower column 2 which are relatively movable axially; a through groove 3 with a curved path is opened on the wall surface of the middle area of ​​the lower column 2, and the area surrounded by the through groove 3 forms a local deformation portion 22 integrally formed on the main body 21 of the lower column 2, and a fastening mechanism 4 is connected to the local deformation portion 22 to enable the local deformation portion 22 to deform and hold the upper column 1 tightly.

[0040] In this embodiment, the middle area of ​​the lower pipe column 2 refers to the area between the two end surfaces of the lower pipe column 2, and does not only refer to the radial center line of the lower pipe column 2 and the area near the radial center line. It can be seen that a plurality of local deformation parts 22 can be arranged at intervals in the axial direction of the lower pipe column 2 to meet the requirement that the lower pipe column 2 holds the upper pipe column 1 tightly according to actual needs.

[0041] In some embodiments, two local deformation parts 22 are formed on the lower pipe column 2, and the fastening mechanism 4 is connected between the two local deformation parts 22 to drive at least one local deformation part 22 to deform and hold the upper pipe column 1. In the circumferential direction of the lower pipe column 2, there are two opposite through grooves 3, and the two through grooves 3 respectively form local deformation parts 22. A locking block 5 is set on each local deformation part 22. By the fastening mechanism 4 acting on the two locking blocks 5, the two local deformation parts 22 can be deformed relative to the main body 21, so as to achieve the holding of the upper pipe column 1. It can be known that in some embodiments, since the local deformation parts 22 may have different shapes and sizes, when the fastening mechanism 4 pulls the two local deformation parts 22 to move relatively close, one of the local deformation parts 22 may remain stationary relative to the main body 21, and only the other local deformation part 22 produces deformation movement. At this time, it can still meet the holding requirement of the upper pipe column 1.

[0042] like Figure 1 to Figure 3 As shown, in this embodiment, only one through groove 3 forms the local deformation part 22, that is, the fastening mechanism 4 is connected between the local deformation part 22 and the main body 21 to drive the local deformation part 22 to deform and hold the upper pipe column 1. At the position where the fastening mechanism 4 connects the local deformation part 22 and the main body 21, a locking block 5 is still provided, that is, the main body 21 is provided with a locking block 5, and the local deformation part 22 is also provided with a locking block 5, so that the deformation movement of the local deformation part 22 relative to the main body 21 can be realized by using the locking mechanism.

[0043] Further, such as Figure 2 As shown, the through groove 3 includes a gap 1 31 and a gap 2 32 arranged perpendicular to the axis of the lower pipe column 2 , and a gap 33 connecting the gap 1 31 and the gap 2 32 , and the gap 33 is parallel to the axis of the lower pipe column 2 . The gap one 31, gap two 32 and gap three 33 realize the separation of the local deformation part 22 and the main body 21, so that the deformation movement of the local deformation part 22 occurs at the root of the local deformation part 22 that remains connected to the main body 21. In different embodiments, the gap one 31, gap two 32 and gap three 33 can cut the local deformation part 22 from the main body 21 into various shapes. Furthermore, in the present embodiment, the gap one 31 is parallel to the gap two 32. Therefore, the gap one 31, gap two 32 and gap three 33 cut the local deformation part 22 from the main body 21 into a square structure. At this time, when the local deformation part 22 hugs the upper pipe column 1, the contact area with the upper pipe column 1 is larger, which is more conducive to ensuring that the gap between the lower pipe column 2 and the upper pipe column 1 is eliminated.

[0044] In this embodiment, the fastening mechanism 4 is a bolt or a clamp or an elastic member. When the fastening mechanism 4 is a bolt, the fastening mechanism 4 and the two locking blocks 5 can be threadedly connected, or one end thereof passes through one of the locking blocks 5, and the locking block 5 is tightened with the column head, and then threadedly connected to the other locking block 5, or one end of the locking mechanism passes through the two locking blocks 5 at the same time, and then a nut is connected at this end, thereby clamping the two locking blocks 5 between the column head and the nut, so that the local deformation is deformed and the upper pipe column 1 is tightly clamped. In some other technical schemes of this embodiment, a clamp can be used to directly apply the clamping force to the two locking blocks 5 to achieve the local deformation and the upper pipe column 1 is tightly clamped. In some other technical schemes of this embodiment, it can be realized by an elastic member, and the two locking blocks 5 are respectively connected at both ends of the elastic member, and the local deformation part 22 can be deformed by the tightened elastic force. Further, the inner side of the deformation part and / or the outer side of the upper pipe column 1 are provided with a wear-resistant part. Specifically, the wear-resistant part is configured as a wear-resistant coating, or the wear-resistant part is a plastic part. Thus, when the lower pipe column 2 is tightly holding the upper pipe column 1, the two have good durability.

[0045] like Figure 1 As shown, in this embodiment, the deformation of the local deformation part 22 relative to the main body 21 occurs at the root of the local deformation part 22, so the strength here determines the clamping stability of the lower pipe column 2 on the upper pipe column 1. If the strength at this place is not strengthened, then during long-term clamping or in the process of clamping, cracks or even breaks may appear at the connection between the local deformation part 22 and the main body 21, thereby failing to eliminate the gap well. Therefore, in this embodiment, a reinforcing rib 6 is provided at the root where the local deformation part 22 is connected to the main body 21. In different embodiments, the reinforcing rib 6 can extend in different directions. In this embodiment, the reinforcing rib 6 is parallel to the gap one 31 / gap two 32. In addition, it can be known that a plurality of reinforcing ribs 6 can be provided at the root where the local deformation part 22 is connected to the main body 21 to meet actual use requirements.

[0046] like Figure 3As shown, in this embodiment, an adjustment component is also included, and the adjustment component is arranged between the upper column 1 and the lower column 2; one of the adjustment component and the lower column 2 is provided with an adjustment groove 7, and the other is provided with an adjustment block 8 that slides with the adjustment groove 7, and the adjustment groove 7 and the adjustment block 8 are interference fit. In this embodiment, the adjustment block 8 is arranged in the adjustment component, and the adjustment groove 7 is configured with the lower column 2. Since the adjustment groove 7 and the adjustment block 8 are interference fit, it can be ensured that the adjustment component ensures the driving straightness in the process of driving the steering column to move, so as to better achieve the position adjustment of the steering wheel. The adjustment component in this embodiment may include a screw transmission component or a gear component or a linear motor component. Further, in this embodiment, the adjustment component includes a screw transmission component; the center line of the steering column, the center line of the adjustment groove 7 and / or the adjustment block 8, and the center line of the screw 9 are located in the same plane. The screw transmission component has a simple structure, good stability, high transmission efficiency, and a reasonable layout space. The screw 9 of the screw 9 transmission structure is connected to the adjustment block 8 through the screw 9 sleeve. In the prior art, the center line of the steering column, the center line of the adjustment slot 7 and / or the adjustment block 8, and the center line of the screw 9 are not in the same plane, so the power line of the adjustment component and the guide line of the guide component do not coincide, which leads to adjustment offset after long-term use, affecting the combination switches arranged around and causing abnormal rotation, which is not conducive to the driver's experience.

[0047] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A steering column assembly structure, characterized in that: include: An upper pipe string and a lower pipe string that can move axially relative to each other; Among them, a through groove with a curved path is opened on the wall surface of the middle area of ​​the lower tube column, and the area surrounded by the through groove forms a local deformation part integrally formed on the main body of the lower tube column. A fastening mechanism is connected to the local deformation part to enable the local deformation part to deform and hold the upper tube column.

2. A steering column assembly structure as claimed in claim 1, characterized in that: The fastening mechanism is connected between the local deformation part and the main body to drive the local deformation part to deform and hold the upper pipe string tightly; or Two local deformation parts that are arranged opposite to each other are formed on the lower pipe column, and the fastening mechanism is connected between the two local deformation parts to drive at least one local deformation part to deform and hold the upper pipe column tightly.

3. A steering column assembly structure as claimed in claim 1, characterized in that: The fastening mechanism is a bolt, a clamp or an elastic member.

4. A steering column assembly structure as claimed in claim 1, characterized in that: Wear-resistant parts are arranged on the inner side of the deformation portion and / or the outer side of the upper pipe column.

5. A steering column assembly structure as claimed in claim 4, characterized in that: The wear-resistant part is configured as a wear-resistant coating, or the wear-resistant part is a plastic part.

6. A steering column assembly structure according to any one of claims 1 to 5, characterized in that: The through groove comprises: Gap 1 and Gap 2 arranged perpendicular to the axis of the lower pipe string; and A gap three is connected to the gap one and the gap two, and the gap three is parallel to the axis of the lower pipe column.

7. A steering column assembly structure as claimed in claim 6, characterized in that: A reinforcing rib is arranged at the root where the local deformation portion is connected to the main body portion.

8. A steering column assembly structure as claimed in claim 7, characterized in that: The reinforcing rib is parallel to gap one / gap two.

9. The steering column assembly structure according to claim 1, characterized in that: Also includes: An adjusting assembly, wherein the adjusting assembly is arranged between the upper pipe string and the lower pipe string; Among them, one of the adjustment component and the lower pipe column is provided with an adjustment groove, and the other is provided with an adjustment block that is slidably matched with the adjustment groove, and the adjustment groove and the adjustment block are interference-fitted.

10. A steering column assembly structure as claimed in claim 9, characterized in that: The adjustment assembly includes a screw transmission member; Wherein, the center line of the steering column, the center line of the adjustment slot and / or the adjustment block, and the center line of the lead screw are located in the same plane.

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