Novel steering column guiding and collapsing structure

Abstract

The utility model relates to a novel steering column guiding and collapsing structure. Comprising an aluminum cast pipe, an inner column pipe, a length adjusting motor and a length adjusting support, the length adjusting motor is connected with the aluminum cast pipe, a nut is installed on a lead screw of the length adjusting motor and connected with the length adjusting support, the other side of the length adjusting support extends into the aluminum cast pipe, and the inner column pipe is sleeved with the aluminum cast pipe. Longitudinal aluminum cast pipe long grooves and longitudinal inner column pipe long grooves are formed in the aluminum cast pipe and the inner column pipe, the two long grooves correspond to each other inside and outside, the bolt connecting piece penetrates through the aluminum cast pipe long grooves formed in the aluminum cast pipe to be connected with the length adjusting support through bolts, and the inner end of the bolt connecting piece is inserted into the inner column pipe long grooves formed in the inner column pipe and is in interference fit with the inner column pipe. The pulling rivet penetrates through an aluminum cast pipe long groove formed in the aluminum cast pipe to fixedly connect the inner column pipe and the length adjusting support. And the whole structure is simple, the product cost is reduced, and meanwhile, a high contribution can be made in the aspect of light weight of parts.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steering column field, concretely to a novel steering column guide collapse structure. BACKGROUND

[0002] With the development of the automobile industry and the improvement of regulations, the automobile steering system, especially the steering column collapse function, basically realizes full coverage, and the collapse structures in the industry are various. However, the existing collapse scheme structure is relatively complex, the parts are relatively more, and the cost is relatively high. From the perspective of social development or cost reduction, under the premise of meeting the collapse requirements of customers and meeting the collision force demand of the national standard, the simpler the collapse structure is, the better the cost is. Therefore, the design of the collapse structure in the industry gradually evolves from a complex collapse system to a simple collapse system with moderate performance.

[0003] The electric adjusting column is a device controlled by electricity, mainly used for adjusting the height and angle of the column to meet different working needs. In addition to the collapse structure, the electric adjusting column must also be equipped with a length adjusting support and two guide structures for length adjustment, so that the overall structure of the electric adjusting column is very complex. In the prior art, the patent number is 202210176146.6, and the patent name is a guide structure of an electrically adjusted steering column. There is no technology in the prior art that can integrate the column collapse structure and the length adjusting support and guide structure, which are two structures that must exist. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a novel steering column guide collapse structure, which has fewer parts, a simple structure, fewer control variables, and a high fault tolerance.

[0005] The technical scheme of the utility model:

[0006] A novel steering column guide collapse structure, comprising an aluminum cast pipe, an inner column pipe, a length adjusting motor, and a length adjusting support, the length adjusting motor is connected with the aluminum cast pipe, a screw nut is arranged on the lead screw of the length adjusting motor, the screw nut is connected with the length adjusting support, the other side of the length adjusting support extends into the aluminum cast pipe, the aluminum cast pipe is sleeved outside the inner column pipe, longitudinal aluminum cast pipe long grooves and inner column pipe long grooves are formed in the aluminum cast pipe and the inner column pipe respectively, the two long grooves correspond to each other, a bolt connecting piece passes through the aluminum cast pipe long groove on the aluminum cast pipe and is bolted with the length adjusting support, the bolt connecting piece is in interference fit with the aluminum cast pipe long groove, the inner end of the bolt connecting piece is inserted into the inner column pipe long groove formed on the inner column pipe and is in interference fit with the inner column pipe, and a pull rivet passes through the aluminum cast pipe long groove formed on the aluminum cast pipe to fixedly connect the inner column pipe and the length adjusting support.

[0007] The utility model has the advantages of:

[0008] 1、The length adjustment structure and the collapse structure of the electric adjusting column are fused, so that the overall structure is simple, the cost of the product is reduced, and higher contribution can be made in the aspect of lightweight of parts. The scheme has few parts, few controlled variables, and high fault tolerance. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0010] Figure 1 It is a whole structure schematic diagram of the turning column guide collapse structure of the present application.

[0011] Figure 2 It is an enlarged view of the inner column tube part of the turning column guide collapse structure of the present application.

[0012] Figure 3 It is an enlarged view of the bolt connecting part of the turning column guide collapse structure of the present application.

[0013] Figure 4 It is an enlarged view of the bolt part of the turning column guide collapse structure of the present application.

[0014] Reference signs:

[0015] Aluminum cast pipe 1, inner column tube 2, length adjustment motor 3, length adjustment support 4, thread nut 5, aluminum cast pipe long groove 6, inner cast pipe long groove 7, bolt connecting piece 8, pull rivet 9, bolt 81, bolt sleeve 82, nut 83, first light rod 84, threaded rod 85, second light rod 86. DETAILED DESCRIPTION

[0016] In order to solve the problems in the background art, a new turning column guide collapse structure is invented, which has few parts, simple structure and low cost.

[0017] It should be noted that in the description of the present application, the terms "inner", "outer", "upper", "lower" and the like indicating the direction or position relationship are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation of the present application.

[0018] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0019] A new steering column guide collapse structure, comprising an aluminum cast pipe 1, an inner column pipe 2, a length adjustment motor 3, a length adjustment support 4, the length adjustment motor 3 is connected with the aluminum cast pipe 1, a screw nut 5 is installed on the screw rod of the length adjustment motor 3, the screw nut 5 is connected with the length adjustment support 4, the length adjustment support 4 extends to the aluminum cast pipe 1 on the other side, the aluminum cast pipe 1 is sleeved outside the inner column pipe 2, the aluminum cast pipe 1 and the inner column pipe 2 are respectively provided with longitudinal aluminum cast pipe long grooves 6 and inner column pipe long grooves 7, the two long grooves are corresponding inside and outside, a bolt connecting piece 8 passes through the aluminum cast pipe long groove 6 opened on the aluminum cast pipe 1 and is bolted with the length adjustment support 4, the bolt connecting piece is interference fit with the aluminum cast pipe long groove, the inner end of the bolt connecting piece 8 is inserted into the inner column pipe long groove 7 opened on the inner column pipe and is interference fit with the inner column pipe 2, a pull rivet 9 passes through the aluminum cast pipe long groove 6 opened on the aluminum cast pipe 1 and rivets the inner column pipe 2 and the length adjustment support 4.

[0020] The bolt connecting piece 8 is composed of a bolt 81 and a bolt sleeve 82, the bolt 81 is divided into a nut 83, a first light rod 84, a threaded rod 85 and a second light rod 86 from top to bottom, the diameters of the second light rod 86, the threaded rod 85 and the first light rod 84 increase in turn, the first light rod 84 is sleeved with the bolt sleeve 82, the bolt sleeve 82 is interference fit with the aluminum cast pipe long groove 6 on the aluminum cast pipe, the threaded rod 85 is bolted with the length adjustment support 4, and the second light rod 86 is interference fit with the inner column pipe long groove 7 on the inner column pipe.

[0021] The specific implementation is as follows Figure 1As shown, the aluminum cast pipe 1 is sleeved outside the inner column pipe 2, the inner column pipe 2 is inside a steering pipe, and the steering pipe is connected with a steering wheel. The length adjustment motor 3 is bolted on the aluminum cast pipe 1, a screw nut is arranged on a screw rod of the length adjustment motor 3, the length adjustment support 4 is bolted by an upper adjusting support and a lower adjusting support, the screw nut 5 is clamped between the upper adjusting support and the lower adjusting support, and the length adjustment support 4 extends into the aluminum cast pipe 1. The bolted connecting piece 8 is composed of a bolt 81 and a bolt sleeve 82, the bolt is a stepped bolt, the stepped bolt is divided into four parts from top to bottom, namely a nut 83, a first light rod 84, a threaded rod 85 and a second light rod 86, the bolt sleeve 82 is sleeved on the first light rod 84, the bolt sleeve 82 is in interference fit with the aluminum cast pipe long groove 6 on the aluminum cast pipe, the threaded rod is in fit with a corresponding threaded hole of the length adjustment support 4, and the second light rod 85 is in interference fit with a part of the inner column pipe long groove 7 on the inner column pipe 2. The aluminum cast pipe 1 is provided with the aluminum cast pipe long groove 6 structure, and the pull rivet 9 passes through the aluminum cast pipe long groove 6 structure to pull rivet the length adjustment support 4 and the inner column pipe 2.

[0022] In a normal electric adjusting column adjusting process, the length adjustment motor drives the length adjustment support, the inner column pipe, the bolt and the bolt sleeve to realize length adjustment in the aluminum cast pipe, and the bolt and the bolt sleeve play a role in adjusting and guiding in the movement mechanism. In the collapsing process, in order to ensure that the collapsing curve has a certain collapsing peak force, 1-2 pull rivets can be arranged between the length adjustment support and the inner column pipe, and the specific number can be determined according to the requirements of customers for different collapsing curve peak forces. In the collapsing process, the length motor and the length adjustment support do not move, the bolt and the bolt sleeve are fixed on the length adjustment support and also do not move, the inner column pipe is cut to provide a collapsing peak force, and the inner column pipe long groove is in interference sliding with the second light rod of the bolt to provide subsequent holding force.

[0023] The novel steering column guiding and collapsing structure has simple structure and fewer parts, and is combined with the length adjustment support and the guiding structure which must exist on the electric adjusting column into a set of structure. The structure can realize axial adjustment of the electric adjusting column and also can realize the collapsing function. At this time, one or more parts are saved, the structure is designed to be the simplest and the best from the design aspect, and the low-cost design of the collapsing structure is realized from the cost aspect.

[0024] The above has described the utility model and its implementation modes in a schematic manner, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above, does not deviate from the technical solution content of the utility model, and designs a structure mode similar to the technical solution according to the technical essence of the utility model, the design is not creative, and all should belong to the protection scope of the utility model.

Claims

1. A new steering column guide collapse structure characterized by: The utility model relates to a length-adjustable aluminum cast pipe, which comprises an aluminum cast pipe, an inner column pipe, a length-adjustable motor and a length-adjustable support, wherein the length-adjustable motor is connected to the aluminum cast pipe, a screw nut is arranged on the screw rod of the length-adjustable motor, the screw nut is connected to the length-adjustable support, the other side of the length-adjustable support extends into the aluminum cast pipe, the aluminum cast pipe is sleeved outside the inner column pipe, longitudinal aluminum cast pipe long grooves and inner column pipe long grooves are respectively formed in the aluminum cast pipe and the inner column pipe, the two long grooves correspond to each other, a bolt connecting piece passes through the aluminum cast pipe long groove in the aluminum cast pipe and is bolted to the length-adjustable support, the bolt connecting piece is in interference fit with the aluminum cast pipe long groove, the inner end of the bolt connecting piece is inserted into the inner column pipe long groove formed in the inner column pipe and is in interference fit with the inner column pipe, and a pull rivet passes through the aluminum cast pipe long groove formed in the aluminum cast pipe to fixedly connect the inner column pipe and the length-adjustable support.

2. A new type of steering column guide collapse structure according to claim 1, characterized in that: The bolt connecting piece is composed of a bolt and a bolt sleeve, the bolt is divided into a nut, a first light rod, a threaded rod and a second light rod from top to bottom, the diameters of the second light rod, the threaded rod and the first light rod increase in sequence, the first light rod is sleeved with the bolt sleeve, the bolt sleeve is in interference fit with the aluminum cast pipe long groove in the aluminum cast pipe, the threaded rod part is bolted to the length-adjustable support, and the second light rod part is in interference fit with the inner column pipe long groove in the inner column pipe.

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