CN201102569Y - Energy-absorbing mechanism of steering lower shaft of vehicle steering wheel - Google Patents

Abstract

The utility model relates to an energy-absorbing mechanism of a steering lower shaft of a vehicle steering wheel, including a spline shaft (5) and a matched spline tube (7). The other end of the spline shaft (5) is connected with a yoke D (3) and a yoke B (1) and the other end of the spline tube (7) is connected with a yoke A (8) and a yoke C (9). The utility model is characterized in that a flexible clip (6) is arranged between the spline shaft (5) and the spline tube (7). The utility model solves the problem that the prior instrument is unable to make online detection of the energy-absorbing capacity and has no collision safety function. The utility model is able to make online detection of the energy-absorbing capacity and has the function of collision safety. In addition, the utility model adopts the design of hexagon hollow shaft, thus lightening the energy-absorbing mechanism.

Description

The Energy Absorbing Mechanism of Steering Wheel Steering Lower Shaft

technical field

The utility model relates to an automobile component, in particular to an energy-absorbing mechanism for an automobile steering wheel steering lower shaft.

Background technique

In the whole car, one end of this energy-absorbing mechanism is connected to the steering gear, and the steering gear is connected to the steering wheel. However, the energy-absorbing mechanism of the traditional automobile steering wheel steering lower shaft directly cooperates with the spline shaft and the spline tube. The size of the suction capacity is detected online, and it does not have the function of collision protection. Its spline shaft is solid, so the weight is relatively heavy and it is inconvenient to use.

As mentioned above, the existing technology has the following disadvantages: the spline shaft and the spline tube are directly matched, not only the size of the suction capacity cannot be detected online by the instrument, but also does not have the function of collision protection; its spline shaft is solid, so The weight is relatively heavy and inconvenient to use.

Contents of the invention

The utility model solves the problem in the prior art that the spline shaft and the spline tube are directly matched, not only cannot detect the size of the suction capacity through the instrument online, but also does not have the collision protection function, and provides a device that can be monitored online through the instrument The energy-absorbing mechanism of the steering lower shaft with collision protection function;

At the same time, the utility model also solves the problem that the spline shaft in the prior art is solid, so the weight is relatively heavy, and it is inconvenient to use, and a hollow shaft design is provided to make it a lightweight steering lower shaft energy-absorbing mechanism .

The above-mentioned technical purpose of the utility model is mainly solved by the following technical solutions: an energy-absorbing mechanism for steering the lower shaft of an automobile steering wheel, including a spline shaft and a spline tube adapted to it, and the other end of the spline shaft is connected to a yoke D and the yoke B, the other end of the spline tube is connected to the yoke A and the yoke C, and it is characterized in that an elastic clip is arranged between the spline shaft and the spline tube. The elastic clip is an elastic part such as a spring clip, so that the energy-absorbing mechanism can detect the size of the absorbing capacity online through an instrument, and also has a collision protection function.

As a preference, the spline shaft is hollow and has a U-shaped groove at its front end, and the elastic clip is arranged in the U-shaped groove. Such an arrangement reduces the weight of the spline shaft and achieves the purpose of lightweight design.

Preferably, the elastic clip is U-shaped, and the U-shaped edge of the elastic clip is adjacent to the groove edge of the U-shaped groove. The U-shaped edge of the elastic clip and the groove edge of the U-shaped groove just form a whole, so that they can be conveniently detected together online.

Preferably, the other end of the spline shaft is fixedly connected to the yoke D through bolts, and the yoke D and the yoke B are connected through a cross shaft assembly. The other end of the spline tube is connected to the yoke A, and the yoke A is connected to the yoke C through the cross shaft, and the yoke C is fixed by bolts. The B end of the fork is connected to the steering gear, and then connected to the steering wheel, and adjusted through the steering wheel control.

The utility model is ingeniously conceived, and compared with the prior art, it has the following beneficial effects through the setting of the elastic clip and the hollow design of the spline shaft:

1. The suction capacity can be monitored online through the instrument, and it has the function of collision protection;

2. Hollow shaft design realizes light weight.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model:

Fig. 2 is a structural schematic diagram of the cooperation of the spline shaft and the elastic clip;

FIG. 3 is a top view structural diagram of FIG. 2 .

Detailed ways

The technical solutions of the present utility model will be further described below through the embodiments and in conjunction with the accompanying drawings.

Example 1. See Fig. 1, Fig. 2 and Fig. 3, the energy-absorbing mechanism of a kind of automobile steering wheel steering lower shaft in this example, comprises spline shaft 5 and the spline tube 7 that is adapted to it, and the other end of spline shaft 5 is connected with joint yoke D3 and Fork B1, the other end of the spline tube 7 is connected to the fork A8 and the fork C9 (as shown in Figure 1), and the other end of the spline shaft 5 is fixedly connected to the fork D3 through the bolt 4, and the fork D3 and the fork B1 pass through The cross shaft assembly 2 is connected; the other end of the spline tube 7 is connected to the yoke A8, and the yoke A8 is connected to the yoke C9 through the cross shaft 12, and the yoke C9 is fixed by bolts (as shown in Figure 1).

Wherein, an elastic clamp 6 (as shown in Figure 2 ) is provided between the spline shaft 5 and the spline tube 7; Set in the U-shaped groove 11 (as shown in Figure 3); the elastic clip 6 is U-shaped, and the U-shaped side of the elastic clip 6 is adjacent to the groove edge of the U-shaped groove 11 (as shown in Figure 2 and Figure 3) . The setting of the U-shaped elastic clip enables the energy-absorbing mechanism to detect the size of the absorbing capacity online through the instrument, and has the function of collision protection.

It is obvious to those skilled in the art that the present utility model can be changed in many ways, and such changes are not considered to depart from the scope of the present utility model. All such modifications obvious to those skilled in the art are intended to be included within the scope of this claim.

Claims (5)

1. An energy-absorbing mechanism for steering the lower shaft of an automobile steering wheel, including a spline shaft (5) and a spline tube (7) adapted to it, and the other end of the spline shaft (5) is connected to the fork D (3) and the joint Fork B (1), the other end of the spline tube (7) connects the fork A (8) and the fork C (9), which is characterized in that the spline shaft (5) and the spline tube (7) Elastic clips (6) are provided. 2. The energy-absorbing mechanism for the lower steering shaft of the automobile steering wheel according to claim 1, characterized in that the spline shaft (5) is hollow, and there is a U-shaped groove (11) at the front end, and the elastic clip (6) is provided with this In the U-shaped groove (11). 3. The energy-absorbing mechanism for steering the lower shaft of an automobile steering wheel according to claim 1 or 2, characterized in that the elastic clip (6) is U-shaped, and the U-shaped side and U-shaped groove of the elastic clip (6) (11) The groove sides are adjacent. 4. The energy-absorbing mechanism for the lower steering shaft of an automobile steering wheel according to claim 1, characterized in that the other end of the spline shaft (5) is fixedly connected to the yoke D (3) through a bolt (4), and the yoke is D(3) and yoke B(1) are connected through cross shaft assembly (2). 5. The energy-absorbing mechanism for the lower steering shaft of an automobile steering wheel according to claim 1, characterized in that the other end of the spline tube (7) is connected to the yoke A (8), and the yoke A (8) passes through the cross shaft (12) Connect the joint fork C (9), and the joint fork C (9) is fixed by bolts.

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