CN219601362U - Preload adjustment assembly, steering column and vehicle - Google Patents

Abstract

The utility model discloses a pre-tightening adjusting assembly, a steering column and a vehicle, and belongs to the technical field of vehicle steering structures. The pretension adjusting component is installed in the region of the steering column where the lower column tube is matched with the upper column tube, and comprises: the adjusting gasket is positioned at the adjusting hole of the lower column tube, and the inner side surface of the adjusting gasket is matched with the outer surface of the upper column tube; the pre-tightening spring plate is abutted against the outer side surface of the adjusting gasket so that the elastic force of the pre-tightening spring plate acts on the adjusting gasket; the fastener is arranged on the pre-tightening elastic sheet and the adjusting gasket in a penetrating mode, and the pre-tightening elastic sheet and the adjusting gasket are detachably connected to the lower column tube. The utility model solves the technical problem that the pretightening force of the pretightening structure of the steering column on the existing vehicle can not be adjusted.

Description

Preload adjustment assembly, steering column and vehicle

technical field

The utility model relates to the technical field of vehicle steering control structures, in particular to a preload adjustment assembly, a steering column and a vehicle.

Background technique

The steering column is mainly used to control the direction of travel of the car, transmit torque, and absorb the energy of the car when it hits. In order to meet the driver's comfort requirements, the steering column can be adjusted up and down and forward and backward. After being installed and connected with the ignition lock, the anti-theft locking function of the car can be realized.

A steering column generally includes an upper column tube, a lower column tube, an upper steering shaft, a lower steering shaft, an upper mounting bracket and a lower mounting bracket. Wherein, the upper end of the lower column tube is sleeved in the lower end of the upper column tube. The pre-tightening structure of the steering column is an important part of the steering column with adjustable axial length, which can reduce the gap between the upper column tube and the lower column tube, increase the natural frequency and stiffness of the column, and improve driving comfort sex and safety. The steering column pretightening structure on the existing vehicles usually adopts a fixed compacting block for pretightening, but the pretightening force of the compacting block cannot be adjusted, so the versatility is poor.

Utility model content

The technical problem to be solved by the utility model is that the pre-tightening force of the pre-tightening structure of the steering column on the existing vehicle cannot be adjusted.

For above-mentioned technical problem, the utility model provides following technical scheme:

A preload adjustment assembly, the preload adjustment assembly is installed at the area where the lower column tube and the upper column tube cooperate in the steering column, which includes: an adjustment gasket, located at the adjustment hole of the lower column tube, the The inner surface of the adjusting gasket is adapted to the outer surface of the upper column tube; the pre-tightening elastic piece is in contact with the outer surface of the adjusting gasket; the fastener is passed through the pre-tensioning elastic piece and the On the adjusting gasket, the pre-tensioning shrapnel and the adjusting gasket are detachably connected to the lower column tube.

In some embodiments of the present utility model, the outer surface of the adjusting gasket is provided with at least one adjusting rib, and a part of the pre-tensioning elastic piece abuts against the adjusting rib.

In some embodiments of the present utility model, the outer surface of the adjusting gasket is provided with two adjusting ribs extending along the axial direction of the upper column tube and the lower column tube, and the two adjusting ribs are arranged symmetrically. on both sides of the axis.

In some embodiments of the present utility model, the inner surface of the adjusting gasket is provided with several convex or concave structures.

In some embodiments of the present invention, several convex or concave structures form a grid-like structure.

In some embodiments of the present utility model, the adjusting gasket is provided with a boss in the area that cooperates with the fastener, and the boss is provided with a connection hole suitable for passing the fastener.

In some embodiments of the present utility model, the outer surface of the adjusting rib is higher than the outer surface of the boss.

The utility model also provides a steering column, including: an upper column tube and a lower column tube, the upper end of the lower column tube is sleeved on the lower end of the upper column tube, and the upper end wall of the lower column tube is provided with At least one adjustment hole also includes the above-mentioned preload adjustment assembly.

In some embodiments of the present utility model, at least two groups of preload adjustment assemblies are arranged at intervals in the area where the lower column tube matches the upper column tube, and each set of preload adjustment assemblies is located on the lower column. The circumferential positions of the tubes are consistent.

The utility model also provides a vehicle, including the above-mentioned steering column.

The technical solution of the utility model has the following technical effects relative to the prior art:

In the pre-tightening adjustment assembly, the steering column and the vehicle provided by the utility model, the pre-tightening shrapnel abuts on the adjusting gasket, and the inner side of the adjusting gasket acts on the pipe wall of the upper column tube, so that the pre-tightening shrapnel The elastic force acts on the upper column tube, and the upper column tube can slide along the inner wall surface of the lower column tube with a preset sliding force. The preload adjustment component adopts fasteners to detachably connect the adjusting gasket and the preload shrapnel with the lower column tube, and different preload between the upper and lower column tubes can be realized by selecting preload shrapnel with different elastic coefficients Force adjustment, good versatility.

Description of drawings

Preferred embodiments of the present utility model will be described in detail below by accompanying drawings, which will help to understand the purpose and advantages of the present utility model, wherein:

Fig. 1 is a schematic diagram of the explosion structure of a specific embodiment of the steering column of the present invention;

Fig. 2 is a cross-sectional view of a specific embodiment of the steering column of the present invention;

Fig. 3 is a schematic diagram of the cooperation relationship between the preload adjustment assembly and the upper column tube of the present invention;

Fig. 4 is a structural schematic diagram of a specific embodiment of the adjusting gasket in the preload adjusting assembly of the present invention;

Fig. 5 is a structural schematic diagram of a specific embodiment of the preload elastic piece in the preload adjustment assembly of the present invention.

Detailed ways

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Disassembled connection, or integral connection; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

As shown in Figures 1 and 2, a specific embodiment of the steering column and the preload adjustment assembly of the present invention, the steering column includes an upper column tube 10 and a lower column tube 20 that are slidably connected, wherein the The upper end of the lower column tube 20 is sleeved on the lower end of the upper column tube 10, and the upper end of the lower column tube 20 is provided with at least one adjustment hole 21, the lower column tube 20 and the upper column tube 10 mating area (that is, the part of the area where the two are slidingly connected) is provided with a preload adjustment assembly 30. The preload adjustment assembly 30 includes an adjustment gasket 31, a preload elastic piece 32, and a preload elastic piece 32 and The fastener 33 on the adjustment gasket 31, wherein the adjustment gasket 31 is located at the adjustment hole 21 of the lower column tube 20, and the inner surface of the adjustment gasket 31 is the same as the outer surface of the upper column tube 10. The surface matches the arc surface, and the pre-tensioning elastic piece 32 abuts against the outer surface of the adjusting washer 31, so that its elastic force acts on the adjusting washer 31; the fastener 33 will pre-load The tight elastic piece 32 and the adjusting washer 31 are detachably connected to the lower column tube 20 .

The aforementioned steering column realizes the adjustment of the preload between the upper column tube 10 and the lower column tube 20 by setting the preload adjustment assembly 30 . In the preload adjustment assembly 30, the elastic force of the preload spring 32 acts on the adjustment washer 31 through the abutment of the preload spring 32, and the inner surface of the adjustment washer 31 acts on the tube wall of the upper column tube 10. On the upper column tube 10 , the upper column tube 10 can slide along the inner wall surface of the lower column tube 20 with a preset sliding force. Because the fastener 33 can make the adjusting gasket 31 and the pre-tensioning elastic piece 32 detachably connected with the lower column tube 20, during use, by selecting the pre-tensioning elastic piece 32 with different elastic coefficients (such as the pre-tensioning elastic piece 32 of different thickness or different elasticity) The pre-tightening elastic sheet 32) of the material can realize the adjustment of different pre-tightening forces between the upper and lower column tubes 20. Moreover, the above-mentioned preload adjustment assembly 30 has a simple structure and low manufacturing and assembly costs. When assembling, put the adjusting gasket 31 and the pre-tensioning shrapnel 32 on the lower column tube 20 in sequence, and connect them to the lower column tube 20 through the fastener 33. The assembly and disassembly process is simple, and it is convenient to replace different components. The pre-tightening shrapnel 32 or the adjusting gasket 31 can be used to adjust different pre-tightening forces.

Specifically, the adjusting gasket 31 is made of plastic or polymer material, so as to prevent the upper column tube 10 made of metal from rubbing against and scratching the outer surface of the upper column tube 10 when it slides. As shown in Figure 4 and Figure 5, connecting holes 321/311 are provided on both sides of the pre-tensioning shrapnel 32 and the adjusting gasket 31 respectively, and threaded holes matched therewith are provided on the tube wall of the lower column tube 20 22 , the fastening member 33 is a fastening bolt passing through the connecting hole 321 / 311 of the pre-tensioning elastic piece 32 and the adjusting washer 31 and the threaded hole 22 of the lower column tube 20 .

Specifically, the matching structure between the pre-tensioning elastic piece 32 and the adjusting washer 31 is not unique; The adjusting washer 31 adopts a smooth upper surface structure, so that the pre-tensioning elastic piece 32 directly acts on the upper surface of the adjusting washer 31 . In another optional embodiment, as shown in Fig. 2 and Fig. 4, the outer surface of the adjusting gasket 31 is provided with at least one adjusting rib 312, and the pre-tensioning elastic piece 32 abuts against the adjusting rib On the rib 312 , the way of setting the adjusting rib 312 on the adjusting washer 31 can adjust the action position of the pre-tightening elastic piece 32 and the adjusting washer 31 , so as to further improve the adjustment stability.

More specifically, two adjusting ribs 312 extending along the axial direction of the upper column tube 10 and the lower column tube 20 are provided on the outer surface of the adjusting gasket 31, and the two adjusting ribs 312 are arranged symmetrically. on both sides of the axis. Since the adjusting ribs 312 are symmetrically arranged on both sides of the axis of the upper column tube 10 and the lower column tube 20 , it makes the position where the adjusting gasket 31 acts on the upper column tube 10 more uniform and avoids local uneven force. Adjustment of the preload between the upper column tube 10 and the lower column tube 20 can also be achieved by providing the adjusting ribs 312 with different thicknesses or different widths on the adjusting gasket 31 to cooperate with the same pretensioning elastic piece 32 .

Specifically, in order to reduce the frictional force between the adjusting gasket 31 and the upper column tube 10 so that the upper column tube 10 can slide reliably along the inner tube wall of the lower column tube 20, the inner surface of the adjusting gasket 31 is provided with several protrusions. Or the concave structure 313, because the upper surface of the upper column tube 10 and the protrusion or the concave structure 313 of the adjustment gasket 31 is in contact, the contact area between the adjustment gasket 31 and the upper column tube 10 is smaller than that covered by the adjustment gasket 31 The area on the upper column tube 10 has a moderate frictional force, which avoids the noise problem caused by the upper column tube 10 not sliding smoothly in this area.

Specifically, as shown in Figure 4, several protrusions or recessed structures 313 on the arc surface of the adjusting gasket 31 form a grid groove-like cavity for containing the lubricating medium, which can further reduce the size of the adjusting gasket. 31 and the frictional force between the upper column tube 10.

Specifically, in an optional embodiment, as shown in FIG. 4 , the adjusting washer 31 is formed as a boss 314 higher than the surface of other regions in the region that cooperates with the fastener 33 , and the boss 314 The platform 314 is provided with a connection hole 311 through which the fastener 33 passes. More specifically, the boss 314 is shaped as a circular boss 314. When assembled, the lower surface of the circular boss 314 fits with the installation plane of the lower column tube 20, and the fastener 33 is fastened to the lower column tube 20. At this time, the compression deformation of the boss 314 provides the bolt pressing stroke, and at the same time, the compression deformation of the boss 314 can also play a role in eliminating the gap.

As shown in Figure 4, the outer surface of the adjusting rib 312 is higher than the outer surface of the boss 314, and the pre-tensioning elastic piece 32 is shaped as a flat elastic piece in the initial state, which is installed on the When the lower column tube 20 is on, elastic deformation occurs under the action of the adjusting rib 312 whose outer surface is higher than the boss 314 and acts on the area of the adjusting rib 312 of the adjusting gasket 31, so that the adjusting gasket 31 compresses the upper column The outer tube wall of the tube 10.

Since the area where the lower column tube 20 cooperates with the upper column tube 10 is relatively long, in an optional embodiment, as shown in Fig. 1 and Fig. 3 , between the lower column tube 20 and the upper column Two sets of preload adjustment assemblies 30 are provided on the matching area of the tube 10, and the two sets of preload adjustment assemblies 30 are arranged at intervals on both sides of the matching area between the lower column tube 20 and the upper column tube 10, and The two groups of preload adjusting assemblies 30 are located at the same circumferential position of the lower column tube 20 to keep the friction force between the upper column tube 10 and the lower column tube 20 stable and improve the natural frequency and stiffness. The lower column tube 20 has reinforcing ribs 23 in the area between adjacent two groups of the preload adjustment assemblies 30 to improve the rigidity of the lower column tube 20 .

The utility model also provides a specific embodiment of a vehicle, the steering column structure of the vehicle adopts the steering column structure of the above embodiment, and will not be repeated here.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the protection scope of the present utility model.

Claims (10)

1. A preload adjustment assembly, characterized in that, the preload adjustment assembly is installed in the steering column where the lower column tube and the upper column tube cooperate, and it includes: An adjustment gasket is located at the adjustment hole of the lower column tube, and the inner surface of the adjustment gasket is adapted to the outer surface of the upper column tube; The pre-tensioned shrapnel abuts against the outer surface of the adjusting gasket; Fasteners are threaded on the pre-tensioning elastic piece and the adjusting washer, and detachably connect the pre-tensioning elastic piece and the adjusting washer to the lower column tube. 2. The preload adjustment assembly according to claim 1, characterized in that, at least one adjustment rib is provided on the outer surface of the adjustment gasket, and a part of the pre-tension shrapnel abuts against the adjustment rib superior. 3. A preload adjustment assembly according to claim 2, wherein the outer surface of the adjustment gasket is provided with two adjustment ribs extending along the axial direction of the upper column tube and the lower column tube , the two adjusting ribs are symmetrically arranged on both sides of the axis. 4. A preload adjustment assembly according to claim 1, characterized in that, the inner surface of the adjustment gasket is provided with several convex or concave structures. 5. A preload adjustment assembly according to claim 4, characterized in that several convex or concave structures form a grid structure. 6. A preload adjustment assembly according to claim 2, characterized in that, the adjusting washer is provided with a boss in the area that cooperates with the fastener, and the boss is provided with a Connecting holes for fasteners to pass through. 7. The preload adjusting assembly according to claim 6, wherein the outer surface of the adjusting rib is higher than the outer surface of the boss. 8. A steering column, comprising: an upper column tube and a lower column tube, the upper end of the lower column tube is sleeved on the lower end of the upper column tube, and the upper end wall of the lower column tube is provided with at least one adjustment The hole is characterized in that it further comprises the preload adjustment assembly according to any one of claims 1-7. 9. The steering column according to claim 8, characterized in that, at least two groups of said preload adjustment assemblies are arranged at intervals in the area where said lower column tube cooperates with said upper column tube, and each group of said preload adjustment components The tight adjustment assembly is located at the same circumferential position of the lower column tube. 10. A vehicle, comprising the steering column of claim 8.