Steering column crumple mechanism and vehicle
By designing a guide assembly in the steering column collapse mechanism to limit the sliding direction of the collapse bracket and the fixed bracket, the problem of relative rotation between the steering column and the collapse mechanism is solved, and the stable energy absorption effect of the collapse mechanism is achieved.
Patent Information
- Application Number
- CN202421629788.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-10
AI Technical Summary
When the steering column is subjected to a large impact force, relative rotation may occur between the steering column and the collapse mechanism, causing the collapse mechanism to collapse and fail.
A steering column collapse mechanism is designed, including a fixing bracket, a collapse bracket, a collapse assembly and a guide assembly. The guide assembly is connected through the sliding connection of the guide portion and the guide groove to limit the sliding direction of the collapsed bracket and the fixed bracket, avoid relative rotation, and absorb impact force through the deformation of the collapsed assembly.
It effectively avoids the relative rotation between the steering column and the collapse mechanism, ensures the energy absorption stability of the collapse mechanism, and ensures that the collapse mechanism can work normally under the impact force.
Smart Images
Figure CN222905642U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicle parts, and in particular to a steering column collapse mechanism and a vehicle. Background Art
[0002] With the rapid development of my country's automobile industry and the continuous improvement of automobile functions, the quality of life of customers has been improved, and there are higher requirements for the all-round performance of automobiles. The safety performance of automobiles is an aspect that customers focus on. When a car collides, the driver's body often leans forward due to the strong stopping effect, and the chest of the human body collides with the steering wheel, causing damage to the driver's chest, which may be life-threatening in severe cases. For the personal safety of the driver, automobile manufacturers will design the steering column connected to the steering wheel to be a collapse type. When a collision occurs, the steering column will collapse and fold or "break" instantly due to external compression, thereby increasing the distance between the driver and the living space.
[0003] In the related technology, the steering column mainly absorbs the energy of the crush mechanism by controlling the deformation of the steel belt through the crush block. When subjected to a large impact force, the crush block above the steel belt will slide linearly along the steel belt, which is a crush energy absorption process that stretches the wide steel belt from wide to thin.
[0004] However, when the steering column is subjected to a large impact force, relative rotation may occur between the steering column and the collapse mechanism, causing the collapse mechanism to collapse and fail. Utility Model Content
[0005] The present application provides a steering column collapse mechanism and a vehicle, which are used to solve the problem that when the steering column is subjected to a large impact force, relative rotation may occur between the steering column and the collapse mechanism, thereby causing the collapse mechanism to collapse and fail.
[0006] The present application provides a steering column collapse mechanism, which is arranged between a vehicle support and a column support, and the collapse mechanism comprises a fixed support, a collapse support, a collapse assembly and a guide assembly;
[0007] The fixed bracket is used to be installed on the vehicle bracket, the crush bracket is used to be installed on the column bracket, and the crush assembly is installed between the fixed bracket and the crush bracket;
[0008] The guide assembly includes at least two guide parts, which are symmetrically installed on both sides of one of the fixed bracket and the collapse bracket. The other of the fixed bracket and the collapse bracket has at least two guide grooves, and the guide parts and the guide grooves are correspondingly slidably connected.
[0009] In a possible implementation, the steering column collapse mechanism provided by the present application has a guide portion that is a slide rail, a guide groove that is a slide groove, and the slide rail and the slide groove being slidably connected.
[0010] In one possible implementation, the steering column crushing mechanism provided in the present application, the crushing assembly includes a curved steel belt and a straightening pressure block, the curved steel belt is installed on the crushing bracket, and the straightening pressure block is installed on the fixed bracket. When the crushing bracket moves relative to the fixed bracket, the straightening pressure block squeezes the curved steel belt to deform the curved steel belt.
[0011] In a possible implementation, the steering column collapse mechanism provided in the present application, the collapse assembly also includes a first connecting member and a second connecting member, the arc-shaped steel belt is connected to the collapse bracket through the first connecting member, and the straightening pressure block is connected to the fixed bracket through the second connecting member.
[0012] In a possible implementation, the steering column collapse mechanism provided by the present application, the collapse assembly also includes a blocking block, the blocking block is disposed on the fixed bracket, the blocking block abuts against the straightening pressure block to limit the movement of the straightening pressure block relative to the fixed bracket.
[0013] In a possible implementation, the steering column collapse mechanism provided by the present application, the collapse assembly also includes an embedding block, the embedding block is arranged on the arc-shaped steel belt, the collapse bracket has an embedding groove, and the embedding block is embedded in the embedding groove.
[0014] In a possible implementation, the present application provides a steering column collapse mechanism, wherein the collapse assembly includes a fixed steel belt and at least one winding steel belt;
[0015] The fixed steel belt is installed on the fixed bracket;
[0016] The bending steel belt is located at one side of the fixed steel belt, and a tearing groove is provided between the bending steel belt and the fixed steel belt, and one end of the bending steel belt is connected to the collapse bracket.
[0017] In one possible implementation, the steering column collapse mechanism provided in the present application further includes a starting member, which is disposed between the fixed bracket and the collapse bracket. The starting member is configured to break when the force applied to the collapse bracket is greater than a preset force, so as to cause relative displacement between the fixed bracket and the collapse bracket.
[0018] In a possible implementation, the steering column collapse mechanism provided by the present application, the starter includes a positioning pin, the fixing bracket has a through hole, the collapse bracket has a pin hole, the positioning pin passes through the through hole and is inserted into the pin hole;
[0019] The positioning pin is provided with a reduced diameter portion, and the fixing bracket is provided with an inclined surface groove on one side of the through hole, and the inclined surface groove abuts against the reduced diameter portion.
[0020] The present application also provides a vehicle, comprising a vehicle body, a steering column body mounted on the vehicle body, and a steering column collapse mechanism of any one of the above technical solutions mounted on the vehicle body and the steering column body.
[0021] The present application provides a steering column collapse mechanism and a vehicle, wherein the collapse mechanism includes a fixed bracket, a collapse bracket, a collapse assembly and a guide assembly; the fixed bracket is used to be installed on the whole vehicle bracket, the collapse bracket is used to be installed on the column bracket, and the collapse assembly is installed between the fixed bracket and the collapse bracket; the guide assembly includes at least two guide parts, the guide parts are symmetrically installed on both sides of one of the fixed bracket and the collapse bracket, and the other of the fixed bracket and the collapse bracket has at least two guide grooves, and the guide parts and the guide grooves are correspondingly connected in sliding. When the steering column is subjected to a large impact force, the column bracket will move relative to the fixed bracket, so that the collapse bracket moves relative to the fixed bracket. During the movement process, the guide part and the guide groove limit the sliding direction of the collapse bracket and the fixed bracket, and the collapse assembly is deformed, thereby absorbing the impact force of the steering column. The present application limits the moving direction of the collapse bracket and the fixed bracket by setting the guide part and the guide groove, avoids relative rotation between the steering column and the collapse mechanism, and ensures the stability of the energy absorption of the collapse mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0023] Figure 1 A schematic diagram of the structure of the steering column collapse mechanism provided in an embodiment of the present application when in use;
[0024] Figure 2 A schematic structural diagram of one type of collapse component in the steering column collapse mechanism provided in an embodiment of the present application;
[0025] Figure 3 A schematic diagram of the exploded structure of the steering column collapse mechanism provided in an embodiment of the present application;
[0026] Figure 4 A schematic diagram of a structure of a fixed bracket in a steering column collapse mechanism provided in an embodiment of the present application Figure 1 ;
[0027] Figure 5 A schematic diagram of a structure of a fixed bracket in a steering column collapse mechanism provided in an embodiment of the present application Figure 2 ;
[0028] Figure 6 A schematic diagram of the structure of a collapse bracket in a steering column collapse mechanism provided in an embodiment of the present application;
[0029] Figure 7 A schematic structural diagram of another type of collapse component in the steering column collapse mechanism provided in an embodiment of the present application.
[0030] Description of reference numerals:
[0031] 100-fixed bracket;
[0032] 200-collapse stent;
[0033] 300-collapse assembly;
[0034] 310-curved steel belt;
[0035] 320-straightening block;
[0036] 330-block;
[0037] 340-inlay;
[0038] 350-grooves;
[0039] 360-Fixed steel belt;
[0040] 370-bent steel belt;
[0041] 400-guide assembly;
[0042] 410- guide part;
[0043] 420-guide groove;
[0044] 500-starter;
[0045] 510- positioning pin;
[0046] 511-reduced diameter portion;
[0047] 520-through hole;
[0048] 530-pin hole;
[0049] 540-bevel groove.
[0050] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0051] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0052] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the implementation of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein. In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete manner.
[0053] As mentioned in the background technology: With the rapid development of my country's automobile industry and the continuous improvement of automobile functions, the quality of life of customers has been improved, and there are higher requirements for the all-round performance of automobiles. The safety performance of automobiles is an aspect that customers focus on. When a car collides, the driver's body often leans forward due to the strong stopping effect, and the chest of the human body collides with the steering wheel, causing damage to the driver's chest, which may be life-threatening in severe cases. For the personal safety of the driver, automobile manufacturers will design the steering column connected to the steering wheel to be a collapse type. When a collision occurs, the steering column will collapse and fold or instantly "break" due to external compression, thereby increasing the distance between the driver and the living space.
[0054] In the related technology, the steering column mainly absorbs the energy of the crush mechanism by controlling the deformation of the steel belt through the crush block. When subjected to a large impact force, the crush block above the steel belt will slide linearly along the steel belt, which is a crush energy absorption process that stretches the wide steel belt from wide to thin.
[0055] However, when the steering column is subjected to a large impact force, relative rotation may occur between the steering column and the collapse mechanism, causing the collapse mechanism to collapse and fail.
[0056] In order to solve the above-mentioned technical problems, the present application provides a steering column collapse mechanism and a vehicle, wherein the collapse mechanism includes a fixed bracket, a collapse bracket, a collapse assembly and a guide assembly; the fixed bracket is used to be installed on the whole vehicle bracket, the collapse bracket is used to be installed on the column bracket, and the collapse assembly is installed between the fixed bracket and the collapse bracket; the guide assembly includes at least two guide parts, the guide parts are symmetrically installed on both sides of one of the fixed bracket and the collapse bracket, and the other of the fixed bracket and the collapse bracket has at least two guide grooves, and the guide parts and the guide grooves are correspondingly connected in sliding. When the steering column is subjected to a large impact force, the column bracket will move relative to the fixed bracket, so that the collapse bracket moves relative to the fixed bracket. During the movement, the guide part and the guide groove limit the sliding direction of the collapse bracket and the fixed bracket, and the collapse assembly is deformed, thereby absorbing the impact force of the steering column. The present application limits the moving direction of the collapse bracket and the fixed bracket by setting the guide part and the guide groove, avoids relative rotation between the steering column and the collapse mechanism, and ensures the stability of the energy absorption of the collapse mechanism.
[0057] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.
[0058] refer to Figure 1 , Figure 2 and Figure 3 The embodiment of the present application discloses a steering column collapse mechanism, which is arranged between a vehicle support and a column support. The collapse mechanism includes a fixed support 100, a collapse support 200, a collapse assembly 300 and a guide assembly 400.
[0059] The fixed bracket 100 is used for being installed on a whole vehicle bracket, the crush bracket 200 is used for being installed on a pipe column bracket, and the crush assembly 300 is installed between the fixed bracket 100 and the crush bracket 200 .
[0060] The guide assembly 400 includes at least two guide parts 410, which are symmetrically installed on both sides of one of the fixed bracket 100 and the collapse bracket 200. The other of the fixed bracket 100 and the collapse bracket 200 has at least two guide grooves 420, and the guide parts 410 and the guide grooves 420 are correspondingly slidably connected.
[0061] Exemplarily, there are four fixing members between the fixed bracket 100 and the crush bracket 200, for example, the fixing members are bolts, and the fixed bracket 100 and the crush bracket 200 are connected by bolts at four end corners, and one end of the fixed bracket 100 away from the steering column mounting axis (that is, the shaft of the steering column for mounting the steering wheel) and one end of the crush bracket 200 toward the steering column mounting axis are provided with waist-shaped opening grooves at the bolts, and the direction of the opening grooves is toward the direction of movement away from the crush bracket 200. When the crush bracket 200 moves relative to the fixed bracket 100, the bolts can be separated from the fixed bracket 100 and the crush bracket 200 through the opening grooves.
[0062] Exemplarily, two guide portions 410 are provided, and the two guide portions 410 are integrally formed on two opposite sides of the fixed bracket 100, and the guide groove 420 is integrally formed on two opposite sides of the collapse bracket 200. When the collapse bracket 200 moves relative to the fixed bracket 100, the guide portion 410 and the guide groove 420 limit the sliding direction of the collapse bracket 200 and the fixed bracket 100.
[0063] By adopting the above technical solution, when the steering column is subjected to a large impact force, the column bracket will move relative to the fixed bracket 100, so that the crush bracket 200 moves relative to the fixed bracket 100. During the movement, the guide portion 410 and the guide groove 420 limit the sliding direction of the crush bracket 200 and the fixed bracket 100, and the crush assembly 300 is deformed to absorb the impact force of the steering column. The present application limits the moving direction of the crush bracket 200 and the fixed bracket 100 by setting the guide portion 410 and the guide groove 420, avoids relative rotation between the steering column and the crush mechanism, and ensures the stability of the crush mechanism in absorbing energy.
[0064] refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 In some embodiments, the guide portion 410 is a slide rail, the guide groove 420 is a slide groove, and the slide rail and the slide groove are slidably connected.
[0065] Exemplarily, both the slide rail and the slide groove may be T-shaped or dovetail-shaped, the slide rail is integrally formed on the fixed bracket 100 , and the slide groove is integrally formed on the collapse bracket 200 .
[0066] By adopting the above technical solution and providing the slide rails and the slide grooves, the relative sliding stability of the fixed support 100 and the collapse support 200 is improved.
[0067] In some embodiments, reference Figure 2 and Figure 3The crush assembly 300 includes a curved steel belt 310 and a straightening block 320. The curved steel belt 310 is installed on the crush support 200, and the straightening block 320 is installed on the fixed support 100. When the crush support 200 moves relative to the fixed support 100, the straightening block 320 squeezes the curved steel belt 310 to deform the curved steel belt 310.
[0068] Exemplarily, the arc-shaped steel belt 310 includes a straight segment and an arc-shaped convex segment connected in sequence, the straight segment is mounted on the crush stent 200, and the arc-shaped convex segment is in a convex state relative to the crush stent 200.
[0069] Exemplarily, the straightening pressure block 320 includes a connecting plate and a pressure block, the connecting plate is connected to the fixed bracket 100, the pressure block is connected to the connecting plate, and the pressure block abuts against the arc-shaped steel belt 310. When the collapse bracket 200 moves relative to the fixed bracket 100, the pressure block slides on the arc-shaped steel belt 310. When the pressure block abuts against the curved portion of the arc-shaped steel belt 310, the pressure block squeezes the curved portion of the arc-shaped steel belt 310, thereby deforming the curved portion to achieve energy absorption of the steering column.
[0070] By adopting the above technical solution and providing the arc-shaped steel belt 310 and the straightening block 320, the energy absorption stability of the collapse assembly 300 is improved.
[0071] In some embodiments, reference Figure 3 The collapse assembly 300 further includes a first connecting member and a second connecting member. The arc steel belt 310 is connected to the collapse support 200 through the first connecting member, and the straightening block 320 is connected to the fixed support 100 through the second connecting member.
[0072] Exemplarily, the first connecting member and the second connecting member are both connecting bolts.
[0073] By adopting the above technical solution and providing the first connecting member and the second connecting member, it is convenient to fix the arc-shaped steel belt 310 and the straightening block 320 on the collapse support 200 and the fixed support 100 respectively.
[0074] In some embodiments, reference Figure 3 and Figure 4 The collapse assembly 300 further includes a blocking block 330 , which is disposed on the fixed bracket 100 . The blocking block 330 abuts against the straightening pressing block 320 to limit the movement of the straightening pressing block 320 relative to the fixed bracket 100 .
[0075] Exemplarily, the blocking block 330 abuts against a surface of the straightening pressing block 320 that is away from the moving direction of the shrinking support frame 200 .
[0076] By adopting the above technical solution and providing the blocking block 330 , the blocking block 330 limits the movement of the straightening block 320 relative to the fixing bracket 100 , thereby improving the stability of the straightening block 320 installed on the fixing bracket 100 .
[0077] In some embodiments, reference Figure 3 and Figure 6 The collapse assembly 300 further includes an embedding block 340 , which is disposed on the arc-shaped steel belt 310 . The collapse support 200 has an embedding groove 350 , into which the embedding block 340 is embedded.
[0078] Exemplarily, the insert 340 is integrally formed on a straight line segment of the arc-shaped steel belt 310 .
[0079] By adopting the above technical solution, by setting the embedding block 340 and the embedding groove 350, when the arc steel belt 310 is installed on the crush stent 200, the embedding block 340 is embedded in the embedding groove 350, which prevents the arc steel belt 310 from moving relative to the crush stent 200 and improves the stability of the arc steel belt 310 installed on the crush stent 200.
[0080] In some embodiments, reference Figure 7 The crush assembly 300 includes a fixed steel belt 360 and at least one bending steel belt 370 .
[0081] The fixing steel belt 360 is installed on the fixing bracket 100 .
[0082] The bending steel belt 370 is located at one side of the fixed steel belt 360 , and a tear groove is provided between the bending steel belt 370 and the fixed steel belt 360 . One end of the bending steel belt 370 is connected to the collapse stent 200 .
[0083] Exemplarily, two bending steel belts 370 are provided, and the two bending steel belts 370 are respectively located on two opposite sides of the fixed steel belt 360 .
[0084] By adopting the above technical solution, when the crush support 200 moves relative to the fixed support 100, the crush support 200 drives the bending steel belt 370 to move relative to the fixed steel belt 360, so that the bending steel belt 370 and the fixed steel belt 360 are continuously broken at the tear groove, thereby continuously absorbing the impact force of the steering column and improving the energy absorption effect of the crush assembly 300.
[0085] In some embodiments, reference Figure 2 and Figure 3 The collapse mechanism further includes a starter 500, which is disposed between the fixed support 100 and the collapse support 200. The starter 500 is configured to break when the force applied to the collapse support 200 is greater than a preset force, so that the fixed support 100 and the collapse support 200 are relatively displaced.
[0086] By adopting the above technical solution and setting the starting member 500, when the impact force applied to the steering column is less than the preset force, the crush bracket 200 and the fixed bracket 100 will not move relative to each other, thereby preventing the crush mechanism from being activated at any time under the action of external force, thereby affecting the normal use of the steering column. When the impact force applied to the steering column is greater than the preset force, the starting member 500 breaks, and the fixed bracket 100 and the crush bracket 200 are relatively displaced, so that the crush assembly 300 absorbs energy.
[0087] In some embodiments, reference Figure 2 and Figure 3 The starter 500 includes a positioning pin 510 , the fixed bracket 100 has a through hole 520 , the collapse bracket 200 has a pin hole 530 , and the positioning pin 510 passes through the through hole 520 and is inserted into the pin hole 530 .
[0088] The positioning pin 510 has a reduced diameter portion 511 , and the fixing bracket 100 has an inclined surface groove 540 on one side of the through hole 520 , and the inclined surface groove 540 abuts against the reduced diameter portion 511 .
[0089] Exemplarily, the positioning pin 510 is interference fit with the through hole 520 and the pin hole 530 .
[0090] By adopting the above technical solution, the positioning pin 510 is passed through the through hole 520 and inserted into the pin hole 530, so as to achieve the fixation of the fixed bracket 100 and the collapse bracket 200. When the impact force applied to the collapse bracket 200 is greater than the preset force, the inclined groove 540 on the fixed bracket 100 will cut the reduced diameter portion 511 on the positioning pin 510, so that the positioning pin 510 will break at the reduced diameter portion 511, so that the collapse bracket 200 and the fixed bracket 100 can be relatively positioned, thereby allowing the subsequent collapse assembly 300 to continuously absorb energy.
[0091] An embodiment of the present application also discloses a vehicle, comprising a vehicle body, a steering column body mounted on the vehicle body, and a steering column collapse mechanism according to any one of the above embodiments mounted on the vehicle body and the steering column body.
[0092] The structure and principle of the steering column collapse mechanism have been clearly explained in the above embodiments and will not be elaborated here one by one.
[0093] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.
[0094] It should be noted that the embodiments represented by "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments that are explicitly or not explicitly described.
[0095] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.
[0096] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).
[0097] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.
[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A steering column collapse mechanism, arranged between a vehicle support and a column support, characterized in that: The collapse mechanism comprises a fixed support, a collapse support, a collapse assembly and a guide assembly; The fixed bracket is used to be installed on the vehicle bracket, the crush bracket is used to be installed on the column bracket, and the crush assembly is installed between the fixed bracket and the crush bracket; The guide assembly includes at least two guide parts, which are symmetrically installed on both sides of one of the fixed bracket and the collapse bracket. The other of the fixed bracket and the collapse bracket has at least two guide grooves, and the guide parts and the guide grooves are correspondingly slidably connected.
2. The steering column collapse mechanism according to claim 1, characterized in that: The guide portion is a slide rail, the guide groove is a slide groove, and the slide rail is slidably connected to the slide groove.
3. The steering column collapse mechanism according to claim 1, characterized in that: The collapse assembly includes an arc-shaped steel belt and a straightening block, wherein the arc-shaped steel belt is mounted on the collapse bracket, and the straightening block is mounted on the fixed bracket. When the collapse bracket moves relative to the fixed bracket, the straightening block squeezes the arc-shaped steel belt to deform the arc-shaped steel belt.
4. The steering column collapse mechanism according to claim 3, characterized in that: The collapse assembly further includes a first connecting member and a second connecting member, the arc-shaped steel belt is connected to the collapse bracket via the first connecting member, and the straightening block is connected to the fixed bracket via the second connecting member.
5. The steering column collapse mechanism according to claim 3, characterized in that: The collapse assembly further includes a blocking block, which is disposed on the fixed bracket and abuts against the straightening block to limit the movement of the straightening block relative to the fixed bracket.
6. The steering column collapse mechanism according to claim 3, characterized in that: The collapse assembly further comprises an embedding block, which is arranged on the arc-shaped steel belt. The collapse bracket is provided with an embedding groove, and the embedding block is embedded in the embedding groove.
7. The steering column collapse mechanism according to claim 1, characterized in that: The collapse assembly includes a fixed steel belt and at least one winding steel belt; The fixing steel belt is installed on the fixing bracket; The bending steel belt is located at one side of the fixed steel belt, and a tearing groove is provided between the bending steel belt and the fixed steel belt. One end of the bending steel belt is connected to the collapse bracket.
8. The steering column collapse mechanism according to any one of claims 1 to 7, characterized in that: It also includes a starting member, which is arranged between the fixed bracket and the collapse bracket. The starting member is configured to break when the force applied to the collapse bracket is greater than a preset force, so that the fixed bracket and the collapse bracket are relatively displaced.
9. The steering column collapse mechanism according to claim 8, characterized in that: The starter comprises a positioning pin, the fixing bracket has a through hole, the collapse bracket has a pin hole, and the positioning pin passes through the through hole and is inserted into the pin hole; The positioning pin is provided with a reduced diameter portion, and the fixing bracket is provided with an inclined surface groove on one side of the through hole, and the inclined surface groove abuts against the reduced diameter portion.
10. A vehicle, characterized in that: It comprises a vehicle body, a steering column body mounted on the vehicle body, and a steering column collapse mechanism as described in any one of claims 1 to 9 mounted on the vehicle body and the steering column body.