CN205737675U - Steering column regulation locking device and vehicle - Google Patents

Abstract

The utility model provides a steering column adjusting and locking device and a vehicle. The steering column adjustment and locking device includes an adjustment handle with a screw, a mounting bracket, and a fixed seat connected to the mounting bracket and fixedly connected with the steering column, and the screw rod is arranged through the mounting bracket and the fixed seat. , and threaded with the fastening nut; the screw is equipped with a cam group that cooperates with the mounting bracket. Because the adjustment handle drives the rotation of the screw, the cam group has the ability to squeeze the mounting bracket. In a locked state where the steering column is locked, knurling is formed on the bonding surface of the fixing seat and the mounting bracket. In the steering column adjustment and locking device of the present utility model, since a specific knurling structure is formed on the bonding surface of the fixing seat and the mounting bracket, the locking and holding in the locked state are enhanced. The force improves the locking effect of the whole device on the steering column.

Description

Steering column adjustment locking device and vehicle

technical field

The utility model relates to the technical field of automobile steering systems, in particular to an adjusting and locking device for a steering column, and at the same time, the utility model relates to a vehicle with the adjusting and locking device for a steering column.

Background technique

The adjustment function of the steering column is a function directly contacted and used by the user, and the convenience of adjustment and the safety after locking are particularly important. Due to the differences in the body shape of the driver, the driving habits are also different. In order to meet the requirements of driving comfort, the steering column provides four-way adjustment functions of front and rear and up and down, which are used in conjunction with the up and down front and rear adjustment functions of the seat.

In order to meet the holding force of the steering column after locking, various car companies have designed different structures, including column tube slotting structure, multi-layer friction plate pressing mechanism, adjusting rack mechanism, etc. In the slotting structure of the column tube, since the hole is punched on the arc surface of the cylindrical tube, the tolerance range of the slot size is large, and it is difficult to control the accuracy. After the slotting of the tube string, other structures need to be added to make up for the lack of overall rigidity of the tube string; Multi-layer friction plate pressing mechanism: the structure is relatively complex, the cost is high and a large layout space is required, and abnormal adjustment noises often appear as the friction plate wears; adjusting rack mechanism: this structure retains force after locking Larger, but because of its precise fit, the manufacturing cost is relatively high, and friction noise is prone to occur during adjustment.

In addition, most of the commonly used steering column adjustment and locking device structures include an adjustment handle with a screw, a mounting bracket, and a fixing seat that is fixedly connected to the mounting bracket and is fixedly connected to the steering column. The screw passes through the The mounting bracket and the fixing seat are arranged, and are threadedly matched with the fastening nut; a cam group matched with the mounting bracket is mounted on the screw rod, and the cam set is driven by the adjusting handle to rotate the screw rod. The set has a locking state in which the mounting bracket is squeezed to lock the steering column; when unlocked, the two cams constituting the cam set are rotated relative to each other by operating the handle, so that the axial direction between the two cams The distance is reduced, which in turn relieves the pinch on the mounting bracket, allowing the steering column to be adjusted. However, when the above-mentioned structure is in the locked state, it cannot effectively ensure the holding force of the sliding bracket to the steering column, and its use effect is relatively poor.

Utility model content

In view of this, the utility model aims to provide a steering column adjustment and locking device to improve the stability of the steering column in a locked state.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

An adjusting and locking device for a steering column, comprising an adjusting handle with a screw, a mounting bracket, and a fixed seat connected to the mounting bracket and fixedly connected to the steering column, the screw passing through the mounting bracket and the The fixed seat is set and threaded with the fastening nut; a cam group matched with the mounting bracket is assembled on the screw rod, because the adjustment handle drives the rotation of the screw rod, the cam group has a function for the installation The bracket is squeezed to lock the steering column in a locked state, and knurling is formed on the bonding surface of the fixing seat and the mounting bracket.

Further, the knurling is formed on the fixing seat.

Further, the thread on the screw rod is a fine pitch thread.

Further, a plastic embedded layer is formed on the surface of the internal thread of the fastening nut.

Further, a friction layer is formed on the surface where the cam set and the installation bracket are attached.

Further, the friction layer is formed on the cam set.

Further, the cam set includes a fixed cam connected with the mounting bracket, and an adjusting cam fixedly connected with the adjustment handle and cooperating with the fixed cam, and the friction layer is arranged on the fixed cam .

Further, a transparent mounting hole is formed on the mounting bracket, and a protruding boss embedded in the mounting hole is provided on the fixed cam.

Further, the friction layer is arranged on the outer surface of the fixed cam surrounding the boss.

Compared with the prior art, the utility model has the following advantages:

In the steering column adjustment and locking device of the present utility model, since a specific knurling structure is formed on the bonding surface of the fixing seat and the mounting bracket, the locking and holding in the locked state are enhanced. The force improves the locking effect of the whole device on the steering column.

The utility model also provides a vehicle, which is equipped with the steering column adjusting and locking device as described above.

The vehicle described in the utility model has the same effect as the steering column adjusting and locking device described above, which will not be repeated here.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a three-dimensional structural schematic diagram of the steering column adjusting and locking device and the steering column disassembled according to the embodiment of the present invention;

Fig. 2 is a structural schematic diagram in an assembled state in Fig. 1;

Fig. 3 is the schematic diagram of the three-dimensional structure of the fixed cam in Fig. 1;

Fig. 4 is a structural schematic diagram of a fixed seat fixedly connected with a steering column in Fig. 1;

Fig. 5 is a schematic diagram of the structure in Fig. 1 under the cooperative connection of the bolt and the nut.

Explanation of reference signs:

1-Adjusting handle, 2-Screw, 3-Installation bracket, 301-Installation hole, 4-Steering column, 5-Fixer seat, 501-Through hole, 6-Cam group, 601-Fixed cam, 602-Adjusting cam , 603-boss, 604-end face, 605-friction layer, 7-knurl, 8-pad, 9-spring positioning block, 10-spring, 11-fastening nut.

detailed description

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

The utility model relates to a steering column adjustment and locking device, which is shown in Fig. 1 in conjunction with Fig. 2. In its overall structure, it includes an adjustment handle 1 with a screw 2, a mounting bracket 3, and the mounting bracket 3 connected, A fixed seat 5 of the steering column 4 is fixedly connected. Wherein, the mounting bracket 3 is two opposite and spaced side plates, on which a mounting hole 301 is transparently provided. The mounting hole 301 is a vertical elongated hole in the state shown in FIG. 1 for the following description The embedded connection of the cam group.

The fixing seat 5 has a U-shaped structure as a whole, which is located between the two side plates of the mounting bracket 3, and the steering column 4 is welded and fixedly connected to the fixing seat 5 of the U-shaped structure. On the two opposite connecting plates of the fixing seat 5 that are fitted and fixedly connected with the mounting bracket 3 , through holes 501 are also provided, and the through holes 501 are provided correspondingly to the mounting holes 301 for the screw rod 2 to pass through.

The screw 2 is used as the operating force transmission part of the adjusting handle 1. It can be seen from Fig. 1 combined with Fig. 2 that in order to undertake the rotating operating force of the adjusting handle 1, the screw 2 is fixedly connected with the adjusting handle 1; between the adjusting handle 1 and the mounting bracket 3 is provided with a cam group 6, and the function of the cam group 6 is to convert the rotational force of the screw rod 2 into a circumferential force, so that the cam group 6 can produce a force on the mounting bracket 3 and the fixing seat 5 through the form fit. The axial extrusion force further hugs and locks the steering column 4 . In this embodiment, the cam set 6 mainly includes a fixed cam 601 and an adjusting cam 602 cooperating with the fixed cam 601 . Wherein, the fixed cam 601 forms a fixed connection with the mounting bracket 3, and the adjusting cam 602 forms a fixed connection with the screw rod 2. On the two planes opposite to the fixed cam 601 and the adjusting cam 602, there are mutually matching profile structures. Profile structure, so that when the adjusting cam 602 rotates synchronously with the screw rod 2, the profile between the fixed cam 601 and the adjusting cam 602 can be matched or separated from each other, so that the axial direction between the fixed cam 601 and the adjusting cam 602 can be adjusted. The distance becomes larger or smaller, and the profile structure between the two can adopt the existing structure setting. In order to realize the connection between the fixed cam 601 and the mounting bracket 3, as shown in FIG. 1 in conjunction with FIG. Adapted to be embedded in the installation hole 301 to limit the rotation of the fixed cam 601 relative to the installation bracket 3 . In order to strengthen the holding force when the fixed cam 601 squeezes the mounting bracket 3 to form a locking force on the steering column 4, a friction layer 605 is formed on the surface where the cam group 6 and the mounting bracket 3 are attached, it can be understood that , the setting of the friction layer 605 can enhance the friction between the cam set 6 and the mounting bracket 3 brackets, it can be a frosted layer, and it can also be a rough layer that can enhance the roughness of the contact surface. In this embodiment, the friction layer 605 is arranged on The cam 601 is fixed, and the friction layer is arranged around the boss 603 . Based on this, in this embodiment, the friction layer 605 is formed by electric discharge machining on the surface of the fixed cam 601 .

In addition, in order to further improve the locking and maintaining effect of the entire device after locking, as shown in Figure 4, knurling 7 is formed on the bonding surface of the fixing seat 5 and the mounting bracket 3 to improve the gap between the two. coefficient of friction. In this embodiment, the knurling 7 is formed on the fixing seat 5 . Of course, it can be understood that the knurling 7 can also be arranged on the mounting bracket 3 in addition to being arranged on the fixing seat 5 , so that the locking and maintaining effect can also be achieved.

According to the above structure, when the screw rod 2 passes through the mounting bracket 3 and the fixing seat 5, the right end of the screw rod 2 in the state shown in Fig. Wherein, after the pad 8 is tightened by the fastening nut 11, it leans against the end surface on the right side of the mounting bracket 3 to improve the locking and holding force of the whole device; the spring positioning block 9 is used to provide the installation basis for the spring 10; and The fastening nut 11 forms a cooperative connection with the screw thread on the screw rod 2, so as to fasten the above components. In this embodiment, in order to reduce the thread lift and achieve fine adjustment, so as to reduce the range of adjustment force, as shown in Figure 5, the thread on the screw rod 2 adopts fine thread, correspondingly, the internal thread of the fastening nut 11 is adapted to set up. In addition, in order to prevent the fastening nut 11 from loosening due to vibration in the use state, in this embodiment, a plastic embedded layer is formed on the surface of the internal thread of the fastening nut 11, and the plastic embedded layer embeds the threaded surface of the fastening nut. Plastic treatment, so that the resin material acts between the threads during the locking process of the fastening nut.

In addition, the utility model also relates to a vehicle, which is equipped with the steering column adjusting and locking device as above.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (10)

1. A steering column adjustment and locking device, characterized in that: comprising an adjustment handle (1) with a screw rod (2), a mounting bracket (3), connected with the mounting bracket (3), fixedly connected with a steering The fixing seat (5) of the pipe column (4), the screw rod (2) is set through the mounting bracket (3) and the fixing seat (5), and is threadedly matched with the fastening nut (11); The screw rod (2) is equipped with a cam group (6) matched with the mounting bracket (3), because the adjustment handle (1) drives the rotation of the screw rod (2), the cam group (6) has Squeeze the mounting bracket (3) to lock the steering column (4) in a locked state, the bonding surface of the fixing seat (5) and the mounting bracket (3) is formed with knurl (7). 2. The steering column adjusting and locking device according to claim 1, characterized in that: the knurling (7) is formed on the fixing seat (5). 3. The steering column adjusting and locking device according to claim 1, characterized in that: the thread on the screw (2) is a fine thread. 4. The steering column adjusting and locking device according to claim 1, characterized in that: a plastic-embedded layer is formed on the surface of the internal thread of the fastening nut (11). 5. The steering column adjusting and locking device according to any one of claims 1 to 4, characterized in that: on the surface where the cam group (6) and the mounting bracket (3) are attached, a There is a friction layer (605). 6. The steering column adjusting and locking device according to claim 5, characterized in that: the friction layer (605) is formed on the cam set (6). 7. The steering column adjustment and locking device according to claim 6, characterized in that: the cam set (6) includes a fixed cam (601) connected with the mounting bracket (3), and a fixed cam (601) connected with the adjustment An adjustment cam (602) that is fixedly connected to the handle (1) and arranged in cooperation with the fixed cam (601), and the friction layer (605) is arranged on the fixed cam (601). 8. The steering column adjustment and locking device according to claim 7, characterized in that: a transparent mounting hole (301) is formed on the mounting bracket (3), and a transparent mounting hole (301) is formed on the fixed cam (601). A protruding boss (603) embedded in the mounting hole (301) is provided. 9. The steering column adjusting and locking device according to claim 8, characterized in that: the friction layer (605) is arranged on the outer surface of the fixed cam (601) surrounding the boss (603) . 10. A vehicle, characterized in that the vehicle is equipped with the steering column adjusting and locking device according to any one of claims 1-9.