CN217294208U - Vehicle door connecting device - Google Patents

Abstract

The utility model discloses a vehicle door connecting device, which comprises a clamping groove mechanism and a latch mechanism, wherein one of the latch mechanism and the clamping groove mechanism is arranged on a vehicle door inner plate, and the other is arranged on a vehicle door inner decorative plate; the clamping groove mechanism comprises a bayonet piece capable of being opened and closed elastically, a containing cavity is formed in the bayonet piece, the front end of the clamping tooth mechanism can stretch into the containing cavity and is limited by the bayonet piece in a matched reverse clamping mode, and a self-tightening portion is arranged on the bayonet piece and is used for limiting the opening and closing of the elastic part when the front end of the clamping tooth mechanism is separated from the containing cavity. The utility model discloses a door connecting device links to each other door inner panel and door interior decorative board through draw-in groove mechanism and latch mechanism, makes door inner panel and door interior decorative board be connected conveniently, has increased the joint strength of door inner panel and door interior decorative board again, and the door interior decorative board drops and leads to the invasion volume increase and leads to the fact bigger injury to driver and crew in avoiding colliding.

Description

Vehicle door connecting device

Technical Field

The utility model relates to the technical field of automobiles, especially, relate to a door connecting device.

Background

With the development of the automobile industry, the requirements for the safety performance of vehicles are also increasing year by year. The C-NCAP (China New vehicle evaluation protocol of China-New Car Association Program) introduces a side column collision test to a New energy vehicle from 2021 edition, and strengthens the collision safety Assessment on the electric vehicle. Meanwhile, the speed of the side collision has also been increased to 60kph by the eu new car safety evaluation association. In order to improve the safety level of a side collision and a side pillar collision, it is necessary to improve the fixing strength of a door trim in addition to the design for enhancing the structural strength of a side body of a vehicle.

When side collision happens, the side door inner decorative guard plate plays an important role in protecting passengers; if the door plant breaks away from with door connecting device panel beating among the collision accident, will cause great injury to the passenger, the design of the connected mode of side door backplate plays important effect to the side collision.

When the side door guard plate is unreasonable in connection design, the following risks are brought to driving and passengers: 1. when a side traffic accident occurs, the side door guard plate is separated from the metal plate of the vehicle door connecting device, the invasion amount of the side door guard plate is increased rapidly, and the trunk of a driver and a passenger is squeezed seriously, so that the driver and the passenger are more seriously injured in the side traffic accident; 2. when a side traffic accident happens, the side door protective plate is separated from the metal plate of the vehicle door connecting device, when the side door protective plate has high invasion speed and high invasion speed, the side airbag can be too early contacted with drivers and passengers, so that the protection of the side airbag is weakened or even loses efficacy in the traffic accident, and the injury degree of the drivers and passengers can be increased sharply.

The foregoing description is provided for general background information and is not admitted to be prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a firm in connection's door connecting device.

The utility model provides a vehicle door connecting device, which comprises a clamping groove mechanism and a latch mechanism, wherein one of the latch mechanism and the clamping groove mechanism is arranged on a vehicle door inner plate, and the other is arranged on a vehicle door inner decorative plate; the clamping groove mechanism comprises a bayonet piece capable of being opened and closed elastically, a containing cavity is formed in the bayonet piece, the front end of the clamping tooth mechanism can stretch into the containing cavity and is limited by the bayonet piece in a matched reverse clamping mode, and a self-tightening portion is arranged on the bayonet piece and is used for limiting the opening and closing of the elastic part when the front end of the clamping tooth mechanism is separated from the containing cavity.

Furthermore, the clamping groove mechanism further comprises a base, the clamping opening piece comprises a first elastic sheet and a second elastic sheet which are symmetrically arranged, the rear ends of the first elastic sheet and the second elastic sheet are connected with the base, the accommodating cavity is formed between the first elastic sheet and the base, the front end of the first elastic sheet and the front end of the second elastic sheet form the self-tightening part, and the self-tightening part is abutted to the front end of the clamping tooth mechanism when the front end of the clamping tooth mechanism extends into the accommodating cavity, so that the first elastic sheet and the second elastic sheet are opened and closed outwards elastically.

Furthermore, the first elastic sheet and the second elastic sheet both comprise an extension section connected with the base and a butt section connected with the extension section, a jack is formed between the first elastic sheet and the butt section of the second elastic sheet, the front end of the latch mechanism can extend into the accommodating cavity through the jack, and the front end of the latch mechanism is abutted to the butt section when being separated from the accommodating cavity.

Further, the extension section gradually gets close to the accommodating cavity from the base to the abutting section.

Furthermore, the first elastic sheet and the second elastic sheet further comprise inclined sections connected with the abutting sections, the inclined sections are located on the side, away from the accommodating cavity, of the abutting sections, when the front ends of the latch mechanisms are close to the clamping groove mechanisms, the latch mechanisms abut against the inclined sections, and then the extending sections are opened and closed elastically towards the outer side.

Further, the butt section with the slope section constitutes jointly from tight portion, the slope section with contained angle between the butt section is the acute angle, the front end of latch mechanism breaks away from when holding the chamber, the slope section restriction the elasticity of butt section opens and shuts.

Further, latch mechanism includes the connecting rod and is located the mushroom head of connecting rod front end, the mushroom head is including the inclined plane portion that is located the front end and the plane portion that is located the rear end, the diameter of the front end of mushroom head is less than the diameter of the rear end of mushroom head.

Furthermore, the diameter of the rear end of the mushroom head is larger than the aperture of the jack, when the mushroom head is close to the clamping groove mechanism, the inclined surface portion is abutted against the inclined section to enable the extending section to be opened and closed outwards in an elastic mode, the aperture of the jack is further enlarged, and the extending section rebounds to enable the aperture of the jack to be reduced until the mushroom head extends into the accommodating cavity; when the mushroom head is separated from the accommodating cavity, the plane part is abutted to the abutting section.

Further, when the door inner panel is connected with the door trim panel, the distance between the flat surface portion and the abutting portion is 10 mm.

Furthermore, the latch mechanism is installed on the vehicle door interior trim panel, and the slot mechanism is installed on the vehicle door inner panel.

The utility model provides a door connecting device, it links to each other door inner panel and door interior decorative board through draw-in groove mechanism and latch mechanism, when door inner panel links to each other with door interior decorative board, but draw-in groove mechanism elasticity opens and shuts and then holds latch mechanism, the elasticity of tight portion restriction bayonet fitting opens and shuts when latch mechanism breaks away from, it is convenient to make door inner panel and door interior decorative board be connected, the joint strength of door inner panel and door interior decorative board has been increased again, it leads to the invasion volume increase and leads to the fact bigger injury to driver and crew to avoid the interior decorative board of door to drop in the collision. An included angle formed between the inclined section and the abutting section is an acute angle, and when the force of disengaging the latch mechanism is larger, the clamping force of a self-tightening part formed by the inclined section and the abutting section on the latch mechanism is also larger. Draw close to holding the intracavity gradually from the base to the butt section through the extension section, when latch mechanism outwards breaks away from, avoid the extension section to open and shut to outside elasticity. The gap between the plane part and the abutting section is 10mm, so that the gap can allow a certain deformation buffer space for the door trim panel in the initial stage of side collision.

Drawings

FIG. 1 is a schematic structural view of a door connecting device, a door inner panel and a door trim panel according to an embodiment of the present invention;

FIG. 2 is a schematic front view of a latch mechanism of the vehicle door coupling device shown in FIG. 1;

FIG. 3 is a schematic view of a slot mechanism of the door coupling device of FIG. 1;

fig. 4 is a schematic front view of the card slot mechanism shown in fig. 3.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 4, an embodiment of the present invention provides a vehicle door connecting device for connecting a vehicle door inner panel 10 and a vehicle door interior panel 20, wherein the vehicle door inner panel 10 is a sheet metal part, and the vehicle door interior panel 20 is an injection molding part.

The vehicle door connecting device comprises a clamping groove mechanism 30 and a clamping tooth mechanism 40, wherein one of the clamping groove mechanism 30 and the clamping tooth mechanism 40 is arranged on the vehicle door inner plate 10, and the other one is arranged on the vehicle door inner trim plate 20. Referring to fig. 1, in the present embodiment, the latch mechanism 30 is a sheet metal part and is mounted on the door inner panel 10, and the latch mechanism 40 is an injection molded part and is integrally injection molded with the door trim 20 without an additional mold or an additional installation process. Of course, in other embodiments, the latch mechanism 40 and the slot mechanism 30 may be made of other materials and installed.

Referring to fig. 2, the latch mechanism 40 includes a connecting rod 41 and a mushroom head 42, the connecting rod 42 is a cylindrical structure, a rear end of the connecting rod 41 is connected to the door trim 20, and a front end of the connecting rod 41 is connected to the mushroom head 42. The mushroom head 42 is a circular truncated cone-shaped structure, and comprises an inclined surface portion 421 at the front end and a plane portion 422 at the rear end, wherein the diameter of the front end of the mushroom head 42 is smaller than that of the rear end, namely, the diameter of the mushroom head 42 gradually increases from the front end to the rear end of the inclined surface portion 421.

Referring to fig. 3 to 4, the slot mechanism 30 includes a base 31 and a bayonet 32 capable of being opened and closed elastically, the base 31 is connected to the inner door panel 10 by a bolt, and at least one positioning pin 311 is disposed on a lower surface of the base 31. When the base 31 is connected to the door inner panel 10, the positioning pin 311 is aligned with a positioning hole (not shown) on the door inner panel 10, and then the bolt is tightened to fix the base 31 on the door inner panel 10, and the positioning pin 311 is used to prevent the slot mechanism 30 from rotating laterally when the bolt is screwed.

An accommodating cavity 33 is formed between the base 31 and the bayonet piece 32, the mushroom head 42 can extend into the accommodating cavity 33, and the plane part 422 is matched with the bayonet piece 32 to be reversely clamped and limited. The bayonet 32 is provided with a self-tightening part 34, the self-tightening part 34 extends into the accommodating cavity 33 when the mushroom head 42 is abutted against the mushroom head 42, the bayonet 32 is opened and closed outwards elastically, and the self-tightening part 34 limits the elastic opening and closing of the bayonet 32 when the mushroom head 42 is separated from the accommodating cavity 33.

The bayonet part 32 comprises a first elastic sheet 321 and a second elastic sheet 322 which are symmetrically arranged, the rear ends of the first elastic sheet 321 and the second elastic sheet 322 are connected with the base 31, and an accommodating cavity 33 is formed among the first elastic sheet 321, the second elastic sheet 322 and the base 31. In other embodiments, the bayonet elements 32 may also comprise other numbers of clips, and the greater the number of clips, the greater the resistance of the mushroom head 42 to extend into the receiving cavity 33, and the greater the resistance of the mushroom head 42 to separate from the receiving cavity 33.

The first elastic sheet 321 and the second elastic sheet 322 both include an extending section 323, an abutting section 324 and an inclined section 325, the rear end of the extending section 323 is connected to the base 31, and the front end extends in a direction away from the base 31. The abutting section 324 is connected to the front end of the extending section 323 at one end and the inclined section 325 at the other end, and the abutting section 324 is parallel to the upper surface of the base 31.

The abutting sections 324 of the first resilient tab 321 and the second resilient tab 322 both extend toward the symmetry plane of the first resilient tab 321 and the second resilient tab 322, i.e., the distance between the abutting sections 324 of the first resilient tab 321 and the second resilient tab 322 is smaller than the distance between the extending sections 323 of the first resilient tab 321 and the second resilient tab 322. The socket 35 is formed between the abutting sections 324 of the first elastic sheet 321 and the second elastic sheet 322, and the mushroom head 42 can extend into the accommodating cavity 33 from the socket 35. The diameter of the rear end of the mushroom head 42 is larger than that of the insertion hole 35, and the diameter of the rear end of the mushroom head 42 is smaller than the distance between the extending sections 323 on the first elastic sheet 321 and the second elastic sheet 322.

The inclined section 325 is located on the side of the abutting section 324 departing from the accommodating cavity 33, and when the mushroom head 42 approaches the card slot mechanism 30 from the outer side of the accommodating cavity 33, the inclined section 421 abuts against the inclined section 325, so that the extending section 323 elastically opens and closes towards the outer side. Until the aperture of the jack 35 is enlarged to the extent that the diameter of the jack 35 is larger than that of the rear end of the mushroom head 42, the mushroom head 42 extends into the accommodating cavity 33, and the extension section 323 rebounds to reduce the aperture of the jack 35 and restore the original diameter.

The inclined section 325 and the abutting section 324 form an acute angle, and the inclined section 325 and the abutting section 324 form the self-tightening portion 34. When the mushroom head 42 is to be separated from the accommodating cavity 33, the flat portion 422 abuts against the abutting section 324. The inclined section 325 limits the elastic opening and closing of the abutting section 324, and because the included angle formed by the inclined section 325 and the abutting section 324 is an acute angle, when the force for disengaging the mushroom head 42 is larger, the included angle between the inclined section 325 and the abutting section 324 tends to be smaller, and when the included angle between the inclined section 325 and the abutting section 324 is smaller, the force required for continuously reducing is larger, namely the clamping force of the self-tightening part 34 on the mushroom head 42 is larger, and the mushroom head 42 is prevented from disengaging from the accommodating cavity 33.

The extension section 323 gradually gets closer to the accommodating cavity 33 from the base 31 to the abutting section 324, that is, the distance between the rear ends of the extension sections 323 of the first elastic sheet 321 and the second elastic sheet 322 is greater than the distance between the front ends of the extension sections 323. When the mushroom head 42 is separated outwardly, the inwardly gathered extensions 323 require a greater force to elastically open and close to the outside.

In the vehicle door connecting device in this embodiment, when the vehicle door inner panel 10 and the vehicle door interior panel 20 are installed, the notch mechanism 30 and the latch mechanism 40 are aligned at first, the mushroom head 42 is extended into the accommodating cavity 33, and then the vehicle door inner panel 10 is connected with the vehicle door interior panel 20 through other conventional buckles.

Referring to fig. 1, after the door inner panel 10 is connected to the door trim 20, the distance between the flat portion 422 and the abutting portion 324 is 10 mm. The gap between the flat portion 422 and the abutment portion 324 allows a certain deformation buffer space for the door trim panel 20 at the initial stage of the collision when the door is impacted. In the middle and later stages of the collision, the self-tightening part 34 limits the separation of the mushroom head 42, and firmly fixes the door trim panel 20 on the door inner panel 10, so that the situation that the intrusion amount is increased due to the falling of the door trim panel 20 in the collision process to cause greater injury to drivers and passengers is avoided.

The door connecting device provided by the embodiment connects the door inner panel 10 with the door inner panel 20 through the slot mechanism 30 and the latch mechanism 40, when the door inner panel 10 is connected with the door inner panel 20, the slot mechanism 30 can elastically open and close to accommodate the latch mechanism 40, when the latch mechanism 40 is separated, the elastic opening and closing of the bayonet 32 is limited by the self-tightening part 34, so that the door inner panel 10 is conveniently connected with the door inner panel 20, the connecting strength of the door inner panel 10 and the door inner panel 20 is increased, and the phenomenon that the intrusion amount is increased due to the falling of the door inner panel 20 in collision to cause greater injury to drivers and passengers is avoided. By making the included angle between the inclined section 325 and the abutting section 324 an acute angle, the greater the force for disengaging the latch mechanism 40, the greater the clamping force of the clinch portion 34 formed by the inclined section 325 and the abutting section 324 on the latch mechanism 40. By gradually drawing the extension section 323 from the base to the abutting section 324 into the accommodating cavity 33, when the latch mechanism 40 is separated outwards, the extension section 323 is prevented from elastically opening and closing outwards. The gap between the flat portion 422 and the abutment portion 324 is 10mm, and thus the gap allows a certain deformation buffer space for the door trim 20 in the initial stage of a side collision.

In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. It will be understood that when an element such as a layer, region or substrate is referred to as being "formed on," "disposed on" or "located on" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly formed on" or "directly disposed on" another element, there are no intervening elements present.

In this document, unless expressly stated or limited otherwise, 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; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms can be understood in a specific case to those of ordinary skill in the art.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the sake of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.

As used herein, the ordinal adjectives "first", "second", etc., used to describe an element are merely to distinguish between similar elements and do not imply that the elements so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.

As used herein, the meaning of "a plurality" or "a plurality" is two or more unless otherwise specified.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A vehicle door connecting device is characterized by comprising a clamping groove mechanism and a clamping tooth mechanism, wherein one of the clamping tooth mechanism and the clamping groove mechanism is arranged on a vehicle door inner plate, and the other clamping tooth mechanism is arranged on a vehicle door inner decorative plate; the clamping groove mechanism comprises a bayonet piece capable of being opened and closed elastically, a containing cavity is formed in the bayonet piece, the front end of the clamping tooth mechanism can stretch into the containing cavity and is limited by the bayonet piece in a matched reverse clamping mode, and a self-tightening portion is arranged on the bayonet piece and is used for limiting the opening and closing of the elastic part when the front end of the clamping tooth mechanism is separated from the containing cavity.

2. The vehicle door connecting device according to claim 1, wherein the slot mechanism further comprises a base, the slot member comprises a first elastic sheet and a second elastic sheet which are symmetrically arranged, the rear ends of the first elastic sheet and the second elastic sheet are both connected with the base, the accommodating cavity is formed between the first elastic sheet and the base and between the second elastic sheet and the base, the front ends of the first elastic sheet and the second elastic sheet form the self-tightening portion, and the self-tightening portion abuts against the front end of the latch mechanism when the front end of the latch mechanism extends into the accommodating cavity, so that the first elastic sheet and the second elastic sheet are opened and closed outwards elastically.

3. The vehicle door connecting device according to claim 2, wherein the first elastic sheet and the second elastic sheet each include an extending section connected to the base and an abutting section connected to the extending section, a jack is formed between the abutting sections of the first elastic sheet and the second elastic sheet, the front end of the latch mechanism can extend into the accommodating cavity through the jack, and the front end of the latch mechanism abuts against the abutting section when being separated from the accommodating cavity.

4. The vehicle door attachment device of claim 3, wherein said extension gradually converges toward said receiving cavity from said base to said abutment section.

5. The vehicle door connecting device according to claim 3, wherein the first elastic sheet and the second elastic sheet further comprise an inclined section connected with the abutting section, the inclined section is located on the side, away from the accommodating cavity, of the abutting section, when the front end of the latch mechanism is close to the slot mechanism, the latch mechanism abuts against the inclined section, and therefore the extending section is elastically opened and closed towards the outer side.

6. The vehicle door connecting device according to claim 5, wherein the abutting section and the inclined section together constitute the self-tightening portion, an included angle formed between the inclined section and the abutting section is an acute angle, and when the front end of the latch mechanism is separated from the accommodating cavity, the inclined section restricts elastic opening and closing of the abutting section.

7. The door attaching device according to claim 5, wherein said latch mechanism includes a connecting rod and a mushroom head at a front end of said connecting rod, said mushroom head including a slant surface portion at a front end and a flat surface portion at a rear end, a diameter of a front end of said mushroom head being smaller than a diameter of a rear end of said mushroom head.

8. The vehicle door connecting device according to claim 7, wherein the rear end of the mushroom head has a diameter larger than the aperture of the insertion hole, when the mushroom head approaches the slot mechanism, the inclined surface portion abuts against the inclined section to elastically open and close the extending section to the outside, so that the aperture of the insertion hole is enlarged, and the extending section rebounds to reduce the aperture of the insertion hole after the mushroom head extends into the accommodating cavity; when the mushroom head is separated from the accommodating cavity, the plane part is abutted to the abutting section.

9. The door attachment device according to claim 7, wherein the flat portion is spaced apart from the abutting portion by 10mm when the door inner panel is attached to the door trim panel.

10. The door attachment device of claim 1 wherein said latch mechanism is mounted to said door trim panel and said latch mechanism is mounted to said door inner panel.

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