CN219619208U

CN219619208U - Automatic collapse steering column device

Info

Publication number: CN219619208U
Application number: CN202320492231.3U
Authority: CN
Inventors: 徐飞; 方斌; 秦超; 朱峥
Original assignee: Yancheng Mocheng Automobile Safety System Co ltd
Current assignee: Yancheng Mocheng Automobile Safety System Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-09-01
Anticipated expiration: 2033-03-14

Abstract

The utility model relates to the technical field of automobile steering columns, in particular to an automatic collapsing steering column device, which comprises: the inner cavity of the guide cylinder is slidably provided with a stop block extending into the inner cavity of the steering column body, and the upper end of the steering column body is communicated with a metal hose; the upper surface of the connecting block is fixedly connected with a connecting column body, the connecting column body is connected with the steering wheel, and the connecting block is arranged to be of a hollow structure; the upper end of the extrusion piece is fixedly connected with a sealing plate, and the edge of the sealing plate is adhered to the inner side wall of the connecting block and is provided with a sealing layer; the beneficial effects are as follows: through the lateral wall fixedly connected with guide cylinder at steering column body, the inner chamber slip of guide cylinder is provided with the stop block that stretches into steering column body inner chamber, and gas generator is when inflating for the air bag, can also send into the connecting block inner chamber with the promotion extrusion piece with partial gas and slide down to initiatively collapse, improved the buffering protection effect to the navigating mate.

Description

Automatic collapse steering column device

Technical Field

The utility model relates to the technical field of automobile steering columns, in particular to an automatic collapsing steering column device.

Background

Steering columns are important constituent structures in steering mechanisms for driving the steering of vehicle wheels.

In the prior art, the steering column collapse energy absorbing structure adopts an injection pin-pull-out block structure, namely, the pull-out block is connected with an upper bracket of the steering column by an injection pin, and is fixedly connected with an instrument desk beam. When collision occurs, the steering column and the upper bracket move together, and the pull-out block is kept still, and part of impact energy in collision is received due to the stretching and fracture of the injection molding pin, so that the secondary collision is buffered.

However, at present, the steering column collapses to passive collapse, and the steering column can be driven to collapse only by the impact of a driver to the steering wheel, so that a large impact force is required to be generated between the driver and the steering wheel, and the buffer protection effect on the driver is poor. Therefore, the utility model provides an automatic collapsing steering column device for solving the problems.

Disclosure of Invention

The utility model aims to provide an automatic collapsing steering column device, which aims to solve the problem that the steering column provided in the background art is of a passive collapsing structure and has poor buffering and protecting effects on drivers.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an automatic collapsing steering column apparatus comprising:

the steering column comprises a steering column body, wherein the steering column body is of a polygonal structure, a guide cylinder is fixedly connected to the middle of the outer side wall of the steering column body, a stop block extending into the inner cavity of the steering column body is slidably arranged in the inner cavity of the guide cylinder, a metal hose is communicated with the upper end of the steering column body, and one end of the metal hose is communicated with a gas generator of an automobile;

the connecting block is slidably mounted at the upper end of the inner cavity of the steering column body, a gap is reserved between the upper surface of the connecting block and the upper end surface of the steering column body, the upper surface of the connecting block is fixedly connected with a connecting column body, the connecting column body is connected with a steering wheel, the connecting block is of a hollow structure, the upper surface of the connecting block is provided with an air passage communicated with the inner cavity of the connecting block, and the lower surface of the connecting block is provided with a notch;

the extrusion, extrusion slidable mounting is in the inner chamber of connecting block, extrusion and breach looks adaptation, the upper end fixedly connected with closing plate of extrusion, the edge of closing plate and the inside wall laminating of connecting block and be provided with the sealing layer.

Preferably, the guide cylinder and the stop blocks are all provided with four and distributed in an annular array along the outer side of the steering column body, and gaps are reserved among the four stop blocks.

Preferably, the cross section and the notch of the extrusion piece are in a cross shape, and the size of the lower end of the extrusion piece is gradually reduced.

Preferably, the upper end opening end of the steering column body is covered with a sealing cover fixedly connected with the steering column body, the sealing cover is movably sleeved with the connecting column body, a sealing gasket is arranged on the contact surface of the sealing cover and the connecting column body, a limiting ring is fixedly connected with the outer side wall of the connecting column body, and the limiting ring abuts against the inner wall of the end face of the sealing cover.

Preferably, the lower end of the steering column body is fixedly connected with a fixed column body, and the fixed column body is connected with a steering gear of an automobile wheel.

Preferably, the inner cavity of the guide cylinder is provided with a thrust spring, the end part of the thrust spring is attached to a stop block, and the stop block is obliquely arranged on the lower surface of one end of the inner cavity of the steering column body.

Preferably, the surface of the guide cylinder is provided with a limiting chute, the surface of the stop block is fixedly connected with a limiting block which is in sliding connection with the limiting chute, and the limiting block is propped against the outer side wall of the steering column body.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model discloses an outer lateral wall fixedly connected with guide cylinder at steering column body, the inner chamber slip of guide cylinder is provided with the dog that stretches into steering column body inner chamber, the inner chamber of steering column body has the connecting block along self length direction slidable mounting, the connecting block sets up to hollow structure, the air flue rather than inner chamber intercommunication has been seted up to the upper surface of connecting block, the inner chamber slidable mounting of connecting block has the extrusion piece, the extrusion piece is cross and the upper end is provided with the closing plate, metal collapsible tube is installed to the upper end of steering column body, the upper end inner chamber and the external gas generator of steering column body are linked together respectively at metal collapsible tube's both ends, when the car accident leads to the air bag on the steering wheel to pop out, gas generator is inflated for the air bag, can also send into the connecting block inner chamber with the promotion extrusion piece and slide downwards, extrusion piece is with the dog withdraw from steering column body inner chamber this moment, the spacing to the connecting block is relieved, the connecting block can drive and is connected to steering column body lower extreme slip, thereby initiatively burst, the buffering protection effect to the navigating mate has been improved.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is an exploded view of the overall structure of the present utility model;

FIG. 3 is a schematic perspective view of an extrusion structure of the present utility model;

FIG. 4 is a schematic view of a connecting block structure of the present utility model in semi-section;

FIG. 5 is a schematic view showing a steering column body structure in a semi-section;

FIG. 6 is a schematic illustration showing the separation of the guide cylinder and stop block structure of the present utility model.

In the figure: 1. a steering column body; 2. a guide cylinder; 3. a stopper; 4. a connecting block; 5. a connecting column; 6. an airway; 7. a notch; 8. an extrusion; 9. a sealing plate; 10. sealing cover; 11. a limiting ring; 12. a fixed column; 13. a metal hose; 14. a thrust spring; 15. limiting sliding grooves; 16. and a limiting block.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1 to 6, the present utility model provides a technical solution:

example 1

An automatic collapsing steering column apparatus comprising: a steering column body 1, a connection block 4, and an extrusion 8.

Specifically, the steering column body 1 is provided with a polygonal structure, the middle part of the outer side wall is fixedly connected with a guide cylinder 2, a stop block 3 extending into the inner cavity of the steering column body 1 is slidably arranged in the inner cavity of the guide cylinder 2, the upper end of the steering column body 1 is communicated with a metal hose 13, one end of the metal hose 13 is communicated with a gas generator of an automobile, when an accident happens to the automobile, the gas generator works and generates high-pressure gas, the high-pressure gas enters an air bag to prop up the air bag so as to protect the driver, the gas generator is a known technology, details are omitted here, and after the metal hose 13 is communicated with the gas generator, a part of gas can be filled into the inner cavity of the steering column body 1 through the metal hose 13;

secondly, the connecting block 4 is slidably arranged at the upper end of the inner cavity of the steering column body 1, a gap is reserved between the upper surface of the connecting block 4 and the upper end surface of the steering column body 1, so that gas conveyed by a metal hose 13 can enter the upper end of the inner cavity of the steering column body 1 and drive the connecting block 4 to slide downwards along the inner cavity of the steering column body 1, and thus active collapse is carried out;

further, extrusion 8 slidable mounting is in the inner chamber of connecting block 4, extrusion 8 and breach 7 looks adaptation, extrusion 8's upper end fixedly connected with closing plate 9, the edge of closing plate 9 and the inside wall laminating of connecting block 4 are provided with the sealing layer, consequently, when the gas is filled to steering column body 1 inner chamber upper end, gas gets into connecting block 4 inner chamber through air flue 6, closing plate 9 receives the pneumatic action can drive extrusion 8 along connecting block 4 inner chamber downwardly moving and stretch out extrusion 8 lower extreme, extrusion 8 extrusion stop 3 withdraws from steering column body 1 inner chamber this moment with the stop 3, and release the spacing to connecting block 4, connecting block 4 can slide down under the pneumatic action, realize the function that the initiative was collapsed.

Example two

On the basis of the first embodiment, in order to prevent the extrusion 8 from sliding downwards and being limited by the stop block 3, the guide cylinder 2 and the stop block 3 are respectively provided with four guide cylinders and distributed in an annular array along the outer side of the steering column body 1, and gaps are reserved among the four stop blocks 3 so as to ensure that the extrusion 8 cannot be limited by the stop block 3 when sliding downwards.

Example III

On the basis of the second embodiment, in order to ensure that the extrusion 8 slides downwards to press the stop block 3 and withdraw the stop block 3 from the inner cavity of the steering column body 1, the cross section of the extrusion 8 and the notch 7 are arranged in a cross shape, and the lower end of the extrusion 8 is gradually reduced in size, so that when the extrusion 8 slides downwards, the side edge of the extrusion 8 can be pressed to the end part of the stop block 3, and the stop block 3 is withdrawn from the inner cavity of the steering column body 1.

Example IV

On the basis of the third embodiment, in order to ensure that gas conveyed by the metal hose 13 can enter the upper end of the inner cavity of the steering column body 1, the utility model is also provided with the sealing cover 10 which is fixedly connected with the upper end opening end of the steering column body 1, the sealing cover 10 is movably sleeved with the connecting column body 5, the contact surface of the sealing cover 10 and the connecting column body 5 is provided with a sealing gasket, the sealing cover 10 is used for sealing the inner cavity of the upper end of the steering column body 1, the outer side wall of the connecting column body 5 is fixedly connected with the limiting ring 11, the limiting ring 11 abuts against the inner wall of the end face of the sealing cover 10, and the setting of the limiting ring 11 ensures that a gap can be reserved between the upper surface of the connecting block 4 and the sealing cover 10 so that the gas conveyed by the metal hose 13 can enter the upper end of the inner cavity of the steering column body 1.

Example five

On the basis of the fourth embodiment, in order to ensure that the device can drive the automobile steering gear to normally operate, the utility model also has the advantages that the lower end of the steering column body 1 is fixedly connected with the fixed column 12, the fixed column 12 is connected with the steering gear of the automobile wheels, and the steering column body 1 and the connecting block 4 are of polygonal structures, so that when the steering wheel drives the connecting block 4 to rotate through the connecting column 5, the steering column body 1 and the fixed column 12 can synchronously rotate, thereby realizing the rotation of the steering gear.

Example six

On the basis of the fifth embodiment, in order to prevent the stop block 3 from easily separating from the inner cavity of the steering column body 1, the utility model is also provided with a thrust spring 14 in the inner cavity of the guide cylinder 2, the end part of the thrust spring 14 is attached to the stop block 3, and the thrust spring 14 is used for pressing the stop block 3, so that one end of the stop block 3 can be always positioned in the inner cavity of the steering column body 1 to limit the connecting block 4, the stop block 3 is prevented from easily separating from the inner cavity of the steering column body 1, and the stop block 3 is obliquely arranged on the lower surface of one end of the inner cavity of the steering column body 1 so as to prevent the connecting block 4 from being blocked by upward sliding, thereby facilitating upward sliding and resetting of the connecting block 4.

Example seven

On the basis of the sixth embodiment, in order to limit the length of the stop block 3 extending into the inner cavity of the steering column body 1, the utility model further provides a limiting chute 15 formed on the surface of the guide cylinder 2, a limiting block 16 in sliding connection with the limiting chute 15 is fixedly connected to the surface of the stop block 3, the limiting block 16 abuts against the outer side wall of the steering column body 1, the limiting block 16 is used for limiting the length of the stop block 3 extending into the inner cavity of the steering column body 1, and gaps can be reserved among the four stop blocks 3 all the time for inserting the extrusion piece 8.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automatic collapsing steering column device, characterized in that: comprising the following steps:

the steering column comprises a steering column body (1), wherein the steering column body (1) is of a polygonal structure, the middle part of the outer side wall of the steering column body is fixedly connected with a guide cylinder (2), a stop block (3) extending into the inner cavity of the steering column body (1) is slidably arranged in the inner cavity of the guide cylinder (2), the upper end of the steering column body (1) is communicated with a metal hose (13), and one end of the metal hose (13) is communicated with a gas generator of an automobile;

the connecting block (4), connecting block (4) slidable mounting is in the inner chamber upper end of steering column body (1), leave the clearance between the upper surface of connecting block (4) and the up end of steering column body (1), the upper surface fixedly connected with connecting column (5) of connecting block (4), connecting column (5) are connected with the steering wheel, connecting block (4) set up to be hollow structure, air flue (6) rather than the inner chamber intercommunication have been seted up to the upper surface of connecting block (4), breach (7) have been seted up to the lower surface of connecting block (4);

the extrusion piece (8), extrusion piece (8) slidable mounting is in the inner chamber of connecting block (4), extrusion piece (8) and breach (7) looks adaptation, the upper end fixedly connected with closing plate (9) of extrusion piece (8), the edge of closing plate (9) is pasted and is provided with the sealing layer with the inside wall of connecting block (4).

2. An automatic collapsing steering column apparatus as in claim 1, wherein: the steering column is characterized in that the guide cylinder (2) and the stop blocks (3) are respectively provided with four and distributed in an annular array along the outer side of the steering column body (1), and gaps are reserved among the four stop blocks (3).

3. An automatic collapsing steering column apparatus as in claim 2, wherein: the cross section of the extrusion piece (8) and the notch (7) are in a cross shape, and the size of the lower end of the extrusion piece (8) is gradually reduced.

4. An automatic collapsing steering column apparatus as claimed in claim 3, wherein: the steering column is characterized in that the upper end opening end of the steering column body (1) is covered with a sealing cover (10) fixedly connected with the steering column body, the sealing cover (10) is movably sleeved with the connecting column body (5), a sealing gasket is arranged on the contact surface of the sealing cover (10) and the connecting column body (5), a limiting ring (11) is fixedly connected with the outer side wall of the connecting column body (5), and the limiting ring (11) abuts against the inner wall of the end face of the sealing cover (10).

5. An automatic collapsing steering column apparatus as in claim 4, wherein: the lower end of the steering column body (1) is fixedly connected with a fixed column body (12), and the fixed column body (12) is connected with a steering gear of a vehicle wheel.

6. An automatic collapsing steering column apparatus as in claim 5, wherein: the inner cavity of the guide cylinder (2) is provided with a thrust spring (14), the end part of the thrust spring (14) is attached to a stop block (3), and the stop block (3) is obliquely arranged on the lower surface of one end of the inner cavity of the steering column body (1).

7. An automatic collapsing steering column apparatus as in claim 6, wherein: limiting sliding grooves (15) are formed in the surface of the guide cylinder (2), limiting blocks (16) which are connected with the limiting sliding grooves (15) in a sliding mode are fixedly connected to the surface of the stop block (3), and the limiting blocks (16) are abutted to the outer side wall of the steering column body (1).