CN115593318A - Door protective plate anti-disengaging structure and vehicle - Google Patents

Abstract

The invention provides a door guard plate anti-disengaging structure and a vehicle, and relates to the technical field of automobile parts. The door guard plate anti-falling structure comprises an anti-falling bracket and a limiting hook; the anti-falling support comprises a first end and a second end which are oppositely arranged, the first end is used for being connected with one of a door sheet metal and a door guard plate, and a stop structure is formed at the second end; the limiting hook is arranged on the other one of the door metal plate and the door guard plate and comprises a limiting part; work as door protective plate with during door sheet metal connection, along the left and right sides direction of vehicle, spacing portion is located backstop structure orientation one side of first end, just spacing portion with the distance setting is predetermine at the backstop structure interval. The invention can reduce the movement speed and the movement amplitude of the door guard plate moving to one side close to the seat due to impact, ensure the opening time and space of the side air bag, facilitate the complete expansion of the side air bag and improve the safety performance of the vehicle under the side collision working condition, in particular under the side pillar collision working condition.

Description

Door protective plate anti-disengaging structure and vehicle

Technical Field

The invention relates to the technical field of automobile parts, in particular to a door guard plate anti-disengaging structure and a vehicle.

Background

With the development of society, automobiles have become the first-choice travel tool, the automobile holding amount is continuously increased, and the requirements on the safety performance of the automobiles are continuously improved.

The door belongs to the weak link of car side, it includes door panel beating and door backplate, generally install the door backplate in the door panel beating towards the inside one side of car, however, when taking place the side collision especially side post and bumping, the door backplate has the risk that receives the impact and break away from with the door panel beating, when the door backplate breaks away from the door panel beating, can influence the complete expansion of side gasbag, have the risk that causes driver and crew injured, be difficult to satisfy the security performance demand, especially be difficult to satisfy the security performance demand that the work condition was bumped to the relevant side post in the motor vehicle regulation.

Disclosure of Invention

The invention aims to solve the problem of insufficient safety performance caused by the separation of the door guard plate in the side collision working condition in the related technology to a certain extent.

In order to solve the above problems to at least some extent, in a first aspect, the present invention provides a door panel anti-disengaging structure, which includes an anti-disengaging bracket and a limiting hook; the anti-falling support comprises a first end and a second end which are oppositely arranged, the first end is used for being connected with one of a door sheet metal and a door guard plate, and a stop structure is formed at the second end; the limiting hook is arranged on the other one of the door metal plate and the door guard plate and comprises a limiting part; work as door protective plate with during door sheet metal connection, along the left and right sides direction of vehicle, spacing position in backstop structure orientation one side of first end, just spacing portion with the distance setting is predetermine at backstop structure interval.

Optionally, the limiting hook further comprises a connecting part, one end of the connecting part is connected with the limiting part, and the other end of the connecting part is used for extending along the left-right direction and is connected to the other one of the door metal plate and the door guard plate; the connecting parts are connected to one or more directions of the peripheral sides of the limiting parts.

Optionally, the anticreep support is including the first linkage segment, second linkage segment and the third linkage segment that connect gradually, the second linkage segment is followed control direction extends the setting, first linkage segment with the extending direction of third linkage segment respectively with control direction is the contained angle setting, first linkage segment is located first end, the third linkage segment is used for forming backstop structure.

Optionally, a distance from one end of the third connecting section far away from the second connecting section to the first connecting section is smaller than a distance from one end of the third connecting section close to the second connecting section to the first connecting section.

Optionally, the anti-drop bracket is formed by stamping a metal plate; the anti-falling support is provided with a pressing rib, and/or the tail end of the stopping structure is bent towards one side far away from the first end to form a flanging.

Optionally, when the first end is used for being connected with the door sheet metal, the stop structure extends upwards; when the first end is used for being connected with the door protection plate, the stop structure extends downwards.

Optionally, the anticreep support with the door panel beating passes through threaded connection spare and is connected, spacing collude with door protective plate main part body coupling of door protective plate.

Optionally, a first positioning hole is formed in the anti-falling support, a positioning convex hull is arranged on the door metal plate, and the positioning convex hull is inserted into the first positioning hole.

Optionally, the door protection plate is connected with the door sheet metal in a clamping mode through a clamping connection structure.

In a second aspect, the present invention provides a vehicle including the door panel retaining structure according to the first aspect.

Compared with the related prior art, the door guard plate anti-disengaging structure and the vehicle provided by the invention have the advantages that the door guard plate anti-disengaging structure is arranged between the door metal plate and the door guard plate, the first end of the anti-disengaging support is used for being connected with one (such as the door metal plate) of the door metal plate and the door guard plate, the limiting hook is used for being arranged on the other (such as the door guard plate) of the door metal plate and the door guard plate, and the second end of the anti-disengaging support is provided with the stopping structure; on the other hand, bump like the side post when taking place the side, the door protection plate is when moving to vehicle inside for the door panel beating, at the in-process that the distance between spacing portion and backstop structure reduces, door protection plate and door panel beating can take place deformation and absorb impact kinetic energy, when spacing portion and backstop structure contact, form the hindrance that breaks away from the door panel beating to the door protection plate, transmit the impact of door protection plate to the door panel beating, can further reduce the velocity of motion of door protection plate and avoid the door protection plate to break away from completely, compare in the condition that does not set up door protection plate anti-disengaging structure, can reduce the door protection plate because of assaulting and to being close to the velocity of motion and motion range of seat one side motion, ensure the time and the space that the side air bag opened, be favorable to the complete expansion of side air bag. The invention can prevent the door guard plate from being separated from the door sheet metal to a certain extent, improves the safety performance of the vehicle under the side collision working condition, particularly the side post collision working condition, can avoid greatly increasing the difficulty of connecting and assembling the door guard plate and the door sheet metal to a certain extent, and has high reliability and strong practicability.

Drawings

FIG. 1 is a schematic structural diagram of a door panel anti-separation structure arranged between a door panel and a sheet metal of a left front door of a vehicle according to an embodiment of the invention;

FIG. 2 isbase:Sub>A schematic cross-sectional view of section A-A of FIG. 1;

FIG. 3 is another schematic structural diagram of the door panel retaining structure disposed between the door panel and the sheet metal of the front left door of the vehicle according to the embodiment of the present invention;

FIG. 4 is a schematic structural view of the embodiment of the present invention in which the stop hook is integrally connected to the door guard body;

FIG. 5 is a schematic structural diagram of connection between the anti-falling bracket and a door sheet metal in the embodiment of the invention;

fig. 6 is a time-contact force image of simulation analysis of the anti-drop bracket and the limit hook according to the embodiment of the invention.

Description of reference numerals:

1-anti-drop bracket; 11-a first connection section; 12-a second connection segment; 13-a third connecting section; 14-a stop structure; 15-flanging; 16-ribbing; 17-a first positioning hole; 18-a first connection hole; 2-a limit hook; 21-a limiting part; 22-a connecting part; 23-an accommodating space; 24-reinforcing ribs; 3-door metal plates; 31-positioning the convex hull; 4-door guard board; 41-door panel body; 42-water cutting support; 5-cutting the noodles with internal water; 6-rivet nut; 7-a clamping connection structure; 71-clamping head; 72-mounting hole.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the drawings, the Z-axis represents the vertical, i.e., up-down, position, and the positive direction of the Z-axis (i.e., the arrow of the Z-axis points) represents up, and the negative direction of the Z-axis (i.e., the direction opposite to the positive direction of the Z-axis) represents down; in the drawings, the X-axis indicates the front-rear position, and the positive direction of the X-axis (i.e., the arrow direction of the X-axis) indicates the front side, and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) indicates the rear side; in the drawings, the Y-axis represents the horizontal direction and is designated as the left-right position, and the positive direction of the Y-axis (i.e., the arrow direction of the Y-axis) represents the right side and the negative direction of the Y-axis (i.e., the direction opposite to the positive direction of the Y-axis) represents the left side; it should also be noted that the foregoing Z-axis, Y-axis, and X-axis representations are merely intended to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

As shown in fig. 1 to 5, an embodiment of the invention provides a door panel anti-disengaging structure, which includes an anti-disengaging bracket 1 and a limiting hook 2; the anti-falling support 1 comprises a first end and a second end which are oppositely arranged, the first end is used for being connected with one of the door sheet metal 3 and the door guard plate 4, and the second end is provided with a stop structure 14; the limiting hook 2 is arranged on the other one of the door metal plate 3 and the door guard plate 4, and the limiting hook 2 comprises a limiting part 21; when the door panel 4 is connected to the door sheet 3, the limiting portion 21 is located on one side of the stopping structure 14 facing the first end along the left-right direction of the vehicle, and the limiting portion 21 and the stopping structure 14 are spaced apart by a preset distance L (L is indicated in fig. 2).

It should be noted that, in fig. 1, the door sheet metal 3 refers to one close to the inside of the vehicle, that is, an inner sheet metal, and fig. 1 is only used to illustrate a general position of the door panel retaining structure on the vehicle door, for example, the distribution of the door panel retaining structure and the later-described snap-in connection structure 7, and some details are shown and will not be described later.

In this specification, the first end of the anti-drop bracket 1 is connected to the door metal plate 3, and the limiting hook 2 is disposed on the door protection plate 4 (hereinafter referred to as "case one"), but it should be understood that the first end of the anti-drop bracket 1 may be connected to the door protection plate 4, and the limiting hook 2 is disposed on the door metal plate 3 (hereinafter referred to as "case two").

As shown in fig. 1 to fig. 3, taking the application of the door panel anti-falling structure to the vehicle door located on the left side of the vehicle as an example, in a first case, when the door panel 4 is connected to the door sheet metal 3, along the left and right direction of the vehicle, the door panel 4 is located on the right side of the door sheet metal 3 (i.e., one end in the positive direction of the Y axis in the figure), the first end (i.e., the left end) of the anti-falling bracket 1 is connected to the door sheet metal 3, the second end (i.e., the right end) of the anti-falling bracket 1 is disposed close to the door panel 4, the limiting portion 21 of the limiting hook 2 disposed on the door panel 4 is located on the left side of the stopping structure 14, that is, the stopping structure 14 is located on the moving path of the limiting portion 21 moving away from the door sheet metal 3 to the right.

Along left right direction, spacing portion 21 and the setting of backstop structure 14 interval default distance L, backstop structure 14 collides with spacing portion 21 when avoiding the conventional assembly of door protective plate 4 AND gate panel beating 3, and this default distance L makes door protective plate anti-disengaging structure's setting can not increase the assembly degree of difficulty that leads to door protective plate 4 AND gate panel beating 3 and increase by a wide margin, follow-up meeting exemplary explanation.

It should be understood that the predetermined distance is smaller than the second distance, which is the distance from the door panel 4 to the side of the seat when the door panel 4 is connected to the door sheet 3, and the space corresponding to the second distance is also used for ejecting the side airbag, so that the smaller the predetermined distance is, the more the ejection of the side airbag can be ensured in the event of side impact such as side column impact. For example, the predetermined distance is less than 0.02 to 0.8 times the second distance, less than 0.1 to 0.7 times the second distance, less than 0.2 to 0.3 times the second distance.

Thus, the door protection plate anti-release structure is arranged between the door metal plate 3 and the door protection plate 4, the first end of the anti-release support 1 is used for being connected with one (such as the door metal plate 3) of the door metal plate 3 and the door protection plate 4, the limit hook 2 is used for being arranged on the other (such as the door protection plate 4) of the door metal plate 3 and the door protection plate 4, the second end of the anti-release support 1 is provided with the stop structure 14, when the door protection plate 4 is connected with the door metal plate 3, along the left and right directions of the vehicle, the limit part 21 of the limit hook 2 is positioned on one side of the stop structure 14 facing the first end (such as the limit part 21 of the limit hook 2 arranged on the door protection plate 4 is positioned on one side of the stop structure 14 facing the door metal plate 3), that when the door protection plate 4 is relatively separated from the door metal plate 3 in the left and right directions, wherein the door protection plate 4 is usually separated from the door metal plate 3, the distance between the limit part 21 and the stop structure 14 is reduced from the preset distance until the stop structure is contacted with the door metal plate 3, on the one hand, the other hand, the preset distance enables the door protection plate 4 to be in a connection state when the door protection plate 3 is in a connection state, the door protection plate 3, the door protection plate 4, the anti-metal plate connection with the door support, and the door protection plate 2, and the door protection plate connection difficulty of the door protection plate 2 is not need not to be increased, and the anti-metal plate, and the anti-door protection plate connection difficulty of the anti-off support, such as the anti-off support, and the anti-off support is increased, and the difficulty of the anti-off support, and the anti-off support is increased, and the anti-off support is increased; on the other hand, when the side collision occurs like the side column collision, when the door guard plate 4 moves towards the inside of the vehicle relative to the door sheet metal 3, in the process that the distance between the limiting part 21 and the stopping structure 14 is reduced, the door guard plate 4 and the door sheet metal 3 can deform to absorb impact kinetic energy, when the limiting part 21 contacts with the stopping structure 14, the door guard plate 4 is blocked by the door sheet metal 3, the impact of the door guard plate 4 is transmitted to the door sheet metal 3, the movement speed of the door guard plate 4 can be further reduced to avoid the complete separation of the door guard plate 4, compared with the condition that the door guard plate anti-disengaging structure is not arranged, the movement speed and the movement amplitude of the door guard plate 4 moving towards one side close to the seat due to the impact can be reduced, the time and the space for opening the side air bag are ensured, and the complete expansion of the side air bag is facilitated. The invention can prevent the door guard plate 4 from being separated from the door sheet metal 3 to a certain extent, improves the safety performance of the vehicle under the side collision working condition, particularly the side column collision working condition, can avoid greatly increasing the difficulty of connecting and assembling the door guard plate 4 and the door sheet metal 3 to a certain extent, and has high reliability and strong practicability.

As shown in fig. 2 and 3, the limiting hook 2 further includes a connecting portion 22, one end of the connecting portion 22 is connected to the limiting portion 21, the other end of the connecting portion is used for extending in the left-right direction, and the limiting hook 2 is fixed in position by the other end of the connecting portion 22. At this time, an accommodating space 23 is formed on one side of the limiting portion 21 facing the other end of the connecting portion 22, and the stopping structure 14 is inserted into the accommodating space 23.

Specifically, in the first case, the stop hook 2 is connected to the door panel 4 through the other end of the connecting portion 22. For example, the right side of the limiting portion 21 forms the accommodating space 23, and at this time, for example, the left end of the connecting portion 22 is connected with the upper end of the limiting portion 21 to form an "L" shaped hook structure.

As shown in fig. 2 to 4, the connection portions 22 are connected to the stopper portion 21 in a plurality of directions on the circumferential side.

Specifically, in the first case, taking the stopping structure 14 as an example of being inserted into the accommodating space 23 from below, the front end and the rear end of the limiting portion 21 are both connected to the connecting portion 22, at this time, the upper end and the lower end of the accommodating space 23 are set to be a penetrating structure, and the front side wall and the rear side wall of the accommodating space 23 are both the connecting portion 22. Or, the upper end, the front end, and the rear end of the limiting portion 21 are all connected with the connecting portion 22, at this time, the lower end of the accommodating space 23 is set to be a penetrating structure, and the upper side wall, the front side wall, and the rear side wall of the accommodating space 23 are all the connecting portion 22 (see fig. 4).

At this moment, spacing colluding 2 can be dismantled with door protective plate 4 and be connected or an organic whole, for example, can dismantle with door protective plate main part 41 of door protective plate 4 and be connected or an organic whole, and during the body coupling, the right-hand member at accommodation space 23 sets up to run through the structure on door protective plate main part 41, is convenient for demold.

Thus, the limiting portion 21 has a plurality of stress supports, and when side collision occurs, such as side column collision, the stress reliability of the limiting portion 21 is high, and particularly, when the connecting portions 22 are provided around the limiting portion 21 in three directions on the peripheral side, the stress stability of the limiting portion 21 is higher.

Further, reinforcing structures may be provided as necessary between the stopper portion 21 and the connecting portion 22, between the connecting portion 22 and the connecting portion 22, and between the connecting portion 22 and the door panel main body 41.

As shown in fig. 3, the limiting portion 21 is exemplarily provided with a reinforcing rib 24 at a side facing the accommodating space 23, that is, the limiting portion 21 is provided with a reinforcing rib 24 at a side facing the stopping structure 14 in the left-right direction, and the reinforcing rib 24 extends to the connecting portion 22.

As shown in fig. 2 and 3, in an alternative embodiment of the present invention, the anti-drop bracket 1 includes a first connecting section 11, a second connecting section 12, and a third connecting section 13, which are connected in sequence, the second connecting section 12 extends along the left-right direction, the extending directions of the first connecting section 11 and the third connecting section 13 are respectively arranged at an angle with the left-right direction, the first connecting section 11 is located at the first end, and the third connecting section 13 is used for forming the stopping structure 14.

In the first condition, the first connecting section 11 is connected with the door sheet metal 3, and can adopt a detachable connection mode or a welding connection mode and other connection modes. The extending path of the first connecting section 11 and the second connecting section 12 may be a non-linear path, which is not a limitation.

So, its first linkage segment 11 can be better with door panel beating 3 adaptation connection, through the interval demand of second linkage segment 12 adaptation first linkage segment 11 and third linkage segment 13 in the left and right directions, for forming the above-mentioned preset distance provides the structure basis, through the separation of backstop structure 14 that its third linkage segment 13 formed and spacing portion 21's butt restriction door backplate 4 AND door panel beating 3, can reduce the restriction to door panel beating 3 or door backplate 4 that anticreep support 1 is connected, the three-section design makes the structural design that can carry out anticreep support 1 according to actual needs can ensure the suitability of anticreep support 1 installation.

In an alternative embodiment of the present invention, as shown in fig. 2, the distance from the end of the third connecting section 13 far away from the second connecting section 12 to the first connecting section 11 is smaller than the distance from the end of the third connecting section 13 near the second connecting section 12 to the first connecting section 11.

In the first case, taking the stopping structure 14 inserted into the accommodating space 23 from below as an example, the upper end of the third connecting section 13 is disposed closer to the first connecting section 11 than the lower end, and in this case, the third connecting section 13 may be disposed in an inclined structure.

So, bump like the side post and door protection plate 4 and door panel beating 3 in the left and right directions phase separation in-process taking place the side, the one end of keeping away from second linkage segment 12 of third linkage segment 13 at first with spacing portion 21 looks butt, along with the separation motion of door protection plate 4 and door panel beating 3, the upper end of third linkage segment 13 moves to the one side of keeping away from first linkage segment 11 along the left and right directions, in this process, door protection plate 4 turns into the potential energy of anticreep support 1 for the kinetic energy part of door panel beating 3 separation motion, the deformation degree of anticreep support 1 increases, the butt power increase between spacing portion 21 and the backstop structure 14, can avoid door protection plate 4 because of receiving the direct AND gate panel beating 3 separation of impact, cause personnel's injury, and can delay door protection plate 4 to the vehicle internal motion time machine to a certain extent and delay door protection plate 4's movement speed, provide time and space for the air bag is opened smoothly.

The anti-drop bracket 1 can be formed by stamping a metal plate. Of course, the anti-drop bracket 1 can also be made of other materials with similar performance, for example, a fiber composite material.

As shown in fig. 3, at this time, the drop-off prevention bracket 1 is optionally formed with beads 16.

For example, the third connecting section 13, the second connecting section 12, and the first connecting section 11 are all formed with beads 16, and a plurality of beads 16 may be provided at intervals in the front-rear direction, and the convex portion formed by the beads 16 is separated from the stopper portion 21. The beads 16 may extend only to the portion of the first connecting section 11 adjacent to the second connecting section 12. Thereby facilitating the provision of, for example, the first positioning hole 17 and the first coupling hole 18 described later in other portions of the first coupling section 11.

As shown in fig. 3, the end of the stopping structure 14 is optionally bent to a side away from the first end to form a flange 15.

Specifically, in a first case, taking the stopper structure 14 inserted into the accommodating space 23 from below as an example, the third connecting section 13 may include a section body and the above-mentioned flange 15, and the end of the flange 15 after being bent may be located above the section body, for example, an included angle between the flange 15 and the section body is a first included angle, that is, the first included angle is an angle formed after the stopper structure 14 is bent, and the first included angle may be 110 ° to 135 °,120 ° to 130 °, for example, 125 °.

Like this, can strengthen backstop structure 14's rigidity to a certain extent for backstop structure 14 is even at the fore-and-aft direction atress of vehicle when spacing portion 21 butt, in addition, can also lead spacing portion 21 in anticreep support 1 and spacing colluding 2 assembling process, is convenient for realize the assembly of door backplate 4 and door panel beating 3 fast. In a first case, taking the stopping structure 14 as an example of being inserted into the accommodating space 23 from below, when the limiting hook 2 moves downward relative to the stopping structure 14 of the anti-drop bracket 1, the lower end of the limiting portion 21 can be guided to the left side of the stopping structure 14 through the inclined flange 15. At this time, as shown in fig. 3, optionally, the reinforcing rib 24 is formed with a second included angle at a position close to the upper end, the second included angle is larger than the first included angle, when the limiting portion 21 starts to contact with the stopping structure 14, a corner portion of the second included angle contacts with a corner portion of the first included angle, a gap exists between the lower end of the limiting portion 21 and the lower end of the stopping structure 14, and the gap gradually decreases from bottom to top.

Optionally, when the first end is used for being connected with the door sheet 3 (i.e. when the situation is temporary), the stopping structure 14 extends upward, and at this time, the stopping structure 14 is inserted into the accommodating space 23 from below.

When the first end is used for being connected with the door guard 4 (i.e. in case two), the stopping structure 14 extends downwards, and at this time, the stopping structure 14 is inserted into the accommodating space 23 from above.

So, aim at backstop structure 14 at accommodation space 23, then door protection plate 4 can insert backstop structure 14 in accommodation space 23 for the downward motion of door panel beating 3, is convenient for realize the relative position location of the two, and the assembly process to door protection plate 4 influences lessly.

As shown in fig. 2, fig. 3 and fig. 5, optionally, the anti-dropping bracket 1 is connected to the door sheet metal 3 through a threaded connector, and the limiting hook 2 is integrally connected to the door sheet main body 41 of the door sheet 4.

Exemplarily, the threaded connection piece includes rivet nut 6 and screw, is provided with first connecting hole 18 on the first linkage segment 11, is provided with the second connecting hole on the door panel beating 3, and rivet nut 6 passes the second connecting hole and installs on door panel beating 3, and the screw passes first connecting hole 18 and rivet nut 6 threaded connection.

Exemplarily, the limiting hook 2 is injection-molded integrally with the door panel body 41, and at this time, the connecting portion 22 may be designed to be disposed to surround the limiting portion 21 along the circumferential direction, and together form the accommodating space 23.

So, anticreep support 1, spacing collude 2 respective connection structure simple, it is little to occupy the space, and can gain better stress stability.

As shown in fig. 3, further, a first positioning hole 17 is provided on the anti-drop support 1, a positioning convex hull 31 is provided on the door metal plate 3, and the positioning convex hull 31 is inserted into the first positioning hole 17.

So, when carrying out the installation of anticreep support 1, can realize the relative position location through location convex closure 31 and first locating hole 17 on the door panel beating 3 earlier, then couple together the two through rivet nut 6.

As shown in fig. 1, 4 and 5, in the embodiment of the present invention, the door panel 4 is snap-connected to the door sheet 3 at a plurality of positions by the snap-connection structure 7.

Specifically, the click connection structures 7 are provided at a plurality of positions in the circumferential direction of the door panel 4. The direction of the engagement between the two portions of the engagement connecting structure 7 coincides with the left-right direction of the vehicle.

The first distance is the clamping depth between the two parts of the clamping connection structure 7 along the left-right direction, and the first distance can be understood as the distance of the relative movement of the two parts along the left-right direction in the process that the two parts of the clamping connection structure 7 are converted from the clamping state to the separation state. It should be understood that in the separated state, the two parts of the snap connection structure 7 do not need to be completely separated, and the stop structure 14 is taken as an example to extend in the up-down direction, as long as the two parts are not blocked by the stop structure 14 and the limiting portion 21.

Preferably, at this time, the preset distance is greater than or equal to the first distance, and the preset distance is smaller than the second distance. In this embodiment, the preset distance may be 8-25 mm, for example, 10-20 mm, for example, 15 mm.

It should be understood that the working principle of the clamping connection structure 7, such as a common plastic buckle, is that the buckle chuck 71 mounted on the door panel 4 deforms and is squeezed into the mounting hole 72 of the door panel 3, and then the chuck 71 recovers to be clamped, and due to the installation reason, the interference size of the chuck 71 cannot be too large, so that the tensile property of the buckle is poor, and the problems of looseness, high noise and the like may occur after long-time work.

In the joint of conventional door protective plate 4 AND gate panel beating 3 is connected, for improving door protective plate 4 AND gate panel beating 3's connection stability, mainly realize door protective plate 4 anticreep through increasing powerful buckle, particularly, increase dop 71's interference size, these buckles are too big because of the joint power, when can causing the vehicle maintenance, door protective plate 4 is difficult to be dismantled, or need use special tool to dismantle, and the maintenance convenience is poor. Moreover, the buckle is mostly made of plastic materials, and cannot bear large impact force, even if the buckle is made of plastic materials, the requirement of safety performance is difficult to achieve, and especially the requirement of safety performance related to side column collision is difficult to meet.

It should be understood that during assembly, the door panel 4 is actually an assembly structure that includes, in addition to the door panel body 41, a hydro-cutting bracket 42 (or upper panel), a molding, a map pocket, an armrest, etc.

The door panel main body 41 serves as a main frame of the assembly for connecting and mounting the above-mentioned other components, for example, the water cut bracket 42 is connected to the upper portion of the door panel main body 41.

In the above case, the stop structure 14 extends upwards for example, and the assembly manner of the door panel 4 is as follows:

the inner water cut strip 5 is arranged on the door metal plate 3, and then the assembled door guard plate 4 is placed on the inner water cut strip 5 through the water cutting bracket 42; at this time, the inner water cut strip 5 may be partially positioned within the embedded water cut bracket 42.

Moving the door panel 4 so that the end of the stop structure 14 is inserted into the receiving structure; for example, after the lower end of the limiting portion 21 is brought into contact with the inclined flange 15, the accommodating space 23 is rotated clockwise or the door panel 4 is slightly pushed in the left-right direction, so that the end of the stopper structure 14 is inserted into the accommodating space 23.

The door guard plate 4 is arranged in place by beating from the upper part, and the water cutting bracket 42 and the door metal plate 3 share the fixed inner water cutting strip 5.

Then, the door panel 4 is snapped at each snap-fit connection structure 7 along the left-right direction, so that two parts of each snap-fit connection structure 7 are snapped (i.e. the clip 71 is snapped in the mounting hole 72).

It should be understood that the above-mentioned step of placing the door panel 4 on the inner water cut strip 5 by the water cut bracket 42 and the step of moving the door panel 4 so that the end of the stopper structure 14 is inserted into the receiving space 23 may be simultaneously performed when the preset distance is sufficiently large.

Taking the above-mentioned situation as an example, the anti-drop bracket 1 is formed by punching a 2mm thick SAE 1070X plate, the limit hook 2 is integrally connected with the door guard plate main body 41, and is made of PP + EPDM-TD20 material, and the material thickness is as follows: 2.5mm-3.5mm. The strength simulation test is carried out by adopting a Computer Aided Engineering (CAE) technology, the stress condition of the door guard plate 4 and the door sheet metal 3 in the separation process is simulated, and a time-contact force image of the simulation analysis of the anti-drop bracket 1 and the limiting hook 2 is obtained as shown in figure 6.

In the initial stage, the distance between the limiting part 21 and the stop structure 14 is smaller than a preset distance and larger than zero, and the contact force is zero;

after the limiting part 21 is contacted with the stop structure 14, the contact force is gradually increased, and the maximum value can reach 1.5KN.

As can be seen from fig. 6, the contact force between the limiting portion 21 and the stopping structure 14 increases in a period of time after the limiting portion 21 and the stopping structure 14 contact, and in this process, the limiting portion 21 and the stopping structure 14 do not separate, which can provide sufficient time and space for the opening of the side airbag.

After the scheme of the invention is adopted, the stress performance of the clamping connection structure 7 between the door protection plate 4 and the door metal plate 3 does not need to be greatly improved, the requirement on assembly stability can be met, the relevant design can be adopted, when side collision occurs, the door protection plate 4 and the door metal plate 3 are prevented from being completely separated through the butting of the anti-falling support 1 and the limiting hook 2 along the left and right directions, the space and time for unfolding the side airbag can be ensured to a certain extent, and the safety performance of a vehicle under the side collision working condition, particularly the side column collision working condition can be improved.

It should be understood that the arrangement position of the door panel retaining structure at the vehicle door is determined according to specific requirements, and taking the left front vehicle door as an example, the door panel retaining structure is arranged close to the rear end of the door metal plate 3. Specifically, its position in upper and lower direction can correspond with the H height of seat, and the position in front and back direction can correspond with the seat reference point, and exemplarily, 3 upper portions of door panel beating are equipped with the bulge of inside protrusion, and the bulge extends along the fore-and-aft direction, and it can strengthen the rigidity on 3 upper portions of door panel beating, and anticreep support 1 can install in the below of bulge on 3 of door panel beating, and spatial structure is rationally distributed.

Still another embodiment of the present invention provides a vehicle door including the door panel retaining structure of the above embodiment.

Yet another embodiment of the present invention provides a vehicle including the vehicle door of the above embodiment.

The vehicle and the vehicle door have the beneficial effects of the door guard plate anti-falling structure, and the detailed description is omitted here.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to "an embodiment," "one embodiment," "some embodiments," "exemplary" and "one embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or embodiment of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.

Claims (10)

1. A door guard plate anti-disengaging structure is characterized by comprising an anti-disengaging bracket (1) and a limiting hook (2); the anti-falling support (1) comprises a first end and a second end which are oppositely arranged, the first end is used for being connected with one of the door sheet metal (3) and the door guard plate (4), and a stop structure (14) is formed at the second end; the limiting hook (2) is arranged on the other one of the door metal plate (3) and the door guard plate (4), and the limiting hook (2) comprises a limiting part (21); when door protective plate (4) with when door panel beating (3) are connected, along the left and right directions of vehicle, spacing portion (21) are located backstop structure (14) orientation one side of first end, just spacing portion (21) with backstop structure (14) interval default distance sets up.

2. The door panel separation prevention structure according to claim 1, wherein the stopper hook (2) further comprises a connecting portion (22), one end of the connecting portion (22) is connected to the stopper portion (21), and the other end is adapted to extend in the left-right direction and be connected to the other of the door sheet (3) and the door panel (4); the connecting parts (22) are connected to one or more directions of the peripheral side of the limiting part (21).

3. The door panel retaining structure according to claim 1, wherein the retaining bracket (1) includes a first connecting section (11), a second connecting section (12) and a third connecting section (13) connected in sequence, the second connecting section (12) extends along the left-right direction, the extending directions of the first connecting section (11) and the third connecting section (13) are respectively arranged at an included angle with the left-right direction, the first connecting section (11) is located at the first end, and the third connecting section (13) is used for forming the stopping structure (14).

4. The door panel separation preventing structure according to claim 3, wherein a distance from an end of the third connecting section (13) far from the second connecting section (12) to the first connecting section (11) is smaller than a distance from an end of the third connecting section (13) near the second connecting section (12) to the first connecting section (11).

5. The door panel separation prevention structure according to any one of claims 1 to 4, wherein the separation prevention bracket (1) is stamped from a metal plate; the anti-falling support (1) is provided with a pressing rib (16), and/or the tail end of the stopping structure (14) is bent towards one side far away from the first end to form a flanging (15).

6. The door panel retaining structure according to any one of claims 1 to 4, wherein the stop structure (14) is extended upward when the first end is used for connecting with the door panel (3); the first end is used for being connected with the door protection plate (4), and the stop structure (14) extends downwards.

7. The door panel separation prevention structure according to any one of claims 1 to 4, wherein the separation prevention bracket (1) is connected to the door metal plate (3) by a screw connection, and the limit hook (2) is integrally connected to the door panel main body (41) of the door panel (4).

8. The door panel retaining structure according to claim 7, wherein the retaining bracket (1) is provided with a first positioning hole (17), the door metal plate (3) is provided with a positioning convex hull (31), and the positioning convex hull (31) is inserted into the first positioning hole (17).

9. The door panel retaining structure according to claim 1, wherein the door panel (4) is snap-connected to the door sheet metal (3) by means of a snap-connection structure (7).

10. A vehicle characterized by comprising the door panel separation preventing structure according to any one of claims 1 to 9.

Images