CN105201316A - Backdoor hinge reinforcer - Google Patents

Abstract

The invention discloses a rear door hinge reinforcement, which includes a hinge reinforcement body, which is characterized in that: the hinge reinforcement body has a strip that fits vertically with the inner panel of the automobile rear door and is consistent with its length direction. The strip-shaped connecting surface is provided with two back door hinge installation holes at intervals; the lower end edge of the strip-shaped connecting surface extends obliquely downward to form an inclined surface; the inclined surface has a A strip-shaped protrusion protruding in the length direction of the strip-shaped connecting surface; the upper side of the strip-shaped protrusion is convexly connected with the adjacent strip-shaped connecting surface to form a reinforcing rib. The back door hinge reinforcement of the present invention has the advantages of stronger structural strength and higher reliability, and is especially suitable for use on large and medium-sized SUV models.

Description

Back door hinge reinforcement

technical field

The invention belongs to the field of sheet metal parts of an automobile back door assembly, and in particular relates to a back door hinge reinforcement.

Background technique

The back door hinge reinforcement is used to strengthen the structural strength and rigidity of the car back door (also known as: tail box cover) and hinge connection. In the prior art, the patent with the notification number CN203584093U discloses a back door hinge reinforcement. The back door hinge reinforcement is composed of a Z-shaped sheet metal part and a boss. The sheet metal part consists of a first sheet metal surface, a second sheet metal surface and the third sheet metal surface, the second sheet metal surface is connected between the first sheet metal surface and the third sheet metal surface, the boss is arranged in the middle of the third sheet metal surface, on the boss Provided with projection weld nuts.

However, in the above-mentioned back door hinge reinforcement structure, the projection welding nut is fixed on the boss, and the structural design of the boss has limited improvement in structural strength and rigidity. After use, it is still easy to be affected by the gravity of the car back door itself. , causing the projection weld nut on the boss to be pulled outward, and cause the boss to deform.

Therefore, the applicant considered designing a back door hinge reinforcement with stronger structural strength and higher reliability.

Contents of the invention

In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a rear door hinge reinforcement with stronger structural strength and higher reliability.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

A rear door hinge reinforcement, comprising a hinge reinforcement body, the hinge reinforcement body has a strip-shaped connecting surface that is vertically attached to the inner panel of the automobile back door as a whole, and is consistent with its length direction. There are two mounting holes for the back door hinge at intervals on the connection surface;

The lower end edge of the strip-shaped connecting surface extends obliquely downward to form an inclined surface; the inclined surface has a strip-shaped protrusion that protrudes along the length direction of the strip-shaped connecting surface;

The upper side of the strip-shaped protrusion is convexly connected with the adjacent strip-shaped connecting surface to form a reinforcing rib.

For the above-mentioned back door hinge reinforcement, the two back door hinge installation holes are directly arranged on the strip-shaped connecting surface that is attached to the inner panel of the automobile back door (and then fixedly connected by spot welding), and the lower end edge of the strip-shaped connecting surface An inclined surface is formed extending obliquely downward; the inclined surface has a strip-shaped protrusion protruding along the length direction of the strip-shaped connecting surface; in this way, the structure of the strip-shaped protrusion can strengthen the inclined surface structural strength. In addition, the upper side of the strip-shaped protrusion and the adjacent strip-shaped connecting surface are convexly connected to form a reinforcing rib. In this way, the reinforcing rib formed by the upward protrusion not only strengthens the connection between the strip-shaped connecting surface and the inclined surface The structure also improves the overall structural strength of the bar-shaped protrusion and the bar-shaped connection surface through the connection of the ribs, so that the hinge reinforcement body is more firm and not easily deformed, and the durability and reliability of the hinge reinforcement body are improved. sex.

Preferably, the reinforcing ribs are arranged at intervals along the length direction of the strip-shaped connecting surface and are misaligned with the two back door hinge installation holes.

In this way, the two reinforcing ribs arranged in dislocation with the two back door hinge mounting holes not only will not hinder the welding nuts or assembling hinges at the two back door hinge mounting holes, but also can further improve the structural strength of the hinge reinforcement body.

As an improvement, the above-mentioned back door hinge reinforcement also includes an overlapping structure with the drain groove of the back door; the overlapping structure includes an overlapping surface formed by extending and bending downwards at one end of the inclined surface, and makes the hinge The main body of the reinforcing member is C-shaped as a whole, and the lower end of the lapping surface is lapped on the upper part of the drain groove of the back door.

The above-mentioned overlapping joint structure, through the overlapping surface formed by extending and bending downwards at one end of the inclined surface, not only reduces the number of sheet metal parts and connection points (and reduces the welding workload), but also makes The overall structure is more simplified.

As an improvement, the above-mentioned rear door hinge reinforcement also includes a wiring structure, and the wiring structure includes a lower concave surface arranged on the upper surface of the strip-shaped protrusion adjacent to the overlapping surface, and the lower concave surface has a hose passage. hole.

The above routing structure passes through the lower concave surface provided on the upper surface of the bar-shaped protrusion adjacent to the overlapping surface, and the lower concave surface has a hose hole (the hose is used to socket and protect the cable), so that, The lower concave surface forms the routing gap of the hose through the concave, which is convenient for the routing of the hose; at the same time, the lower concave surface is set on the upper surface of the strip-shaped protrusion adjacent to the overlapping surface, and the formation of the lower concave surface is also strengthened. Therefore, the lower concave surface is not only convenient for wiring, but also can strengthen the structure.

The back door hinge reinforcement of the present invention has the advantages of stronger structural strength and higher reliability, and is especially suitable for use on large and medium-sized SUV models.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a rear door hinge reinforcement of the present invention.

Fig. 2 is a top view of the rear door hinge reinforcement of the present invention.

Fig. 3 is a side view of the rear door hinge reinforcement of the present invention.

Marked in the figure: 1 strip connection surface, 2 back door hinge mounting hole, 3 strip protrusion, 4 reinforcement rib, 5 lap joint surface, 6 welding surface, 7 hose hole, 8 wiring trough, 9 threading hole.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings. Wherein, the descriptive terms such as up, down, left, right, etc. are used for the description, with the purpose of helping readers to understand, but not intended to limit.

During specific implementation: as shown in Figures 1 to 3, a back door hinge reinforcement includes a hinge reinforcement body, and the hinge reinforcement body has a body that fits vertically with the inner panel of the automobile back door and connects with it. A strip-shaped connection surface 1 with the same length direction, and two back door hinge installation holes 2 are arranged at intervals on the strip-shaped connection surface 1;

The lower end edge of the strip-shaped connecting surface 1 extends obliquely downward to form an inclined surface; the inclined surface has a strip-shaped protrusion 3 that protrudes along the length direction of the strip-shaped connecting surface 1;

The upper side of the strip-shaped protrusion 3 is convexly connected to the adjacent strip-shaped connecting surface 1 to form a reinforcing rib 4 .

For the above-mentioned back door hinge reinforcement, the two back door hinge installation holes 2 are directly arranged on the strip-shaped connection surface 1 that is attached to the inner panel of the automobile back door (and then fixedly connected by spot welding), and the strip-shaped connection surface 1 The lower end edge of the lower end extends obliquely downward to form an inclined surface; the inclined surface has a strip-shaped protrusion 3 protruding along the length direction of the strip-shaped connecting surface 1; in this way, the structure of the strip-shaped protrusion 3 The structural strength of the inclined surface can be enhanced. In addition, the upper side of the strip-shaped protrusion 3 and the adjacent strip-shaped connecting surface 1 are convexly connected to form a reinforcing rib 4. In this way, not only the reinforcing rib 4 formed by the upward convex not only strengthens the strip-shaped connecting surface 1 and the structure of the inclined surface, also through the connection of the reinforcement rib 4, the overall structural strength of the strip-shaped protrusion 3 and the strip-shaped connection surface 1 is improved, so that the hinge reinforcement body is more firm and not easily deformed, and the Hinge reinforcement body durability and reliability.

Wherein, the two reinforcing ribs 4 are arranged at intervals along the length direction of the strip-shaped connecting surface 1 and are misaligned with the two back door hinge mounting holes 2 .

In this way, the two stiffeners 4 that are misplaced with the two back door hinge mounting holes 2 will not hinder the welding nuts or assembling hinges at the two back door hinge mounting holes 2; Structural strength.

Wherein, the above-mentioned rear door hinge reinforcement also includes an overlapping structure with the back door drainage groove; the overlapping structure includes an overlapping surface 5 formed by extending and bending downwards at one end of the inclined surface, and makes the hinge The main body of the reinforcement is C-shaped as a whole, and the lower end of the lapping surface 5 is lapped on the upper part of the back door drainage groove (not shown in the figure).

The above-mentioned overlapping joint structure, through the overlapping surface 5 formed by extending and bending downwards at one end of the inclined surface, not only reduces the number of sheet metal parts and connection points there (and reduces the welding workload), but also Make the overall structure more simplified.

Wherein, a welding surface 6 for welding with the drain groove of the back door extends outward from the upper edge of the overlapping surface 5 .

The setting of the above-mentioned welding surface 6 not only strengthens the connection strength between the lap joint surface 5 and the drainage groove of the back door. At the same time, because the hinge reinforcement body is an integrally formed sheet metal structure, the improvement of the connection strength of the lap joint surface 5 can also improve the connection strength of the hinge reinforcement body, thereby helping to improve the quality of the automobile back door assembly.

Wherein, the above-mentioned rear door hinge reinforcement also includes a wiring structure, and the wiring structure includes a lower concave surface arranged on the upper surface of the strip-shaped protrusion 3 adjacent to the overlapping surface 5, and a hose is provided on the lower concave surface. Via 7.

The above routing structure passes through the lower concave surface provided on the upper surface of the strip-shaped protrusion 3 adjacent to the overlapping surface 5, and the lower concave surface has a hose hole 7 (the hose is used to socket and protect the cable), so that As a result, the lower concave surface forms a wiring gap for the hose through the depression, which facilitates the wiring of the hose; at the same time, the lower concave surface is arranged on the upper surface of the strip-shaped protrusion 3 adjacent to the overlapping surface 5, and the lower surface The formation of the concave surface also strengthens the structural strength of the place, so the lower concave surface is not only convenient for wiring, but also can play a role in strengthening the structure.

Wherein, a wiring groove 8 is concavely formed on the overlapping surface 5 along the length direction.

Similarly, the wire groove 8 formed by the recess can not only improve the structural strength of the overlapping surface 5, but also form the wire groove 8 to better arrange and protect cables.

Wherein, the wiring structure further includes a wiring hole 9 provided on the side wall of the drainage groove.

The more intelligent the car is, the more cables are laid out in it. There is limited space on the car to install the back door hinge reinforcement, routing the wires through the threading hole 9 on the side wall of the drainage tank not only makes the routing structure more reasonable; it combines with the hose through hole 7 Using it, it is also possible to route various cables separately, which makes it easier to overhaul the lines.

The above are only preferred embodiments of the present invention. It should be pointed out that those skilled in the art can also make some modifications and improvements without departing from the technical solution. The above-mentioned modifications and improved technical solutions should be regarded as falling into The scope of protection required by this application.

Claims (4)

1. A back door hinge reinforcement, comprising a hinge reinforcement body, characterized in that: The hinge reinforcement body has a strip-shaped connection surface that fits vertically with the inner panel of the automobile back door and is consistent with its length direction as a whole. Two back door hinge installation holes are arranged at intervals on the strip-shaped connection surface; The lower end edge of the strip-shaped connecting surface extends obliquely downward to form an inclined surface; the inclined surface has a strip-shaped protrusion that protrudes along the length direction of the strip-shaped connecting surface; The upper side of the strip-shaped protrusion is convexly connected with the adjacent strip-shaped connecting surface to form a reinforcing rib. 2. The back door hinge reinforcement according to claim 1, characterized in that: the reinforcing ribs are arranged at intervals along the length direction of the strip-shaped connecting surface and are misaligned with the two back door hinge mounting holes. indivual. 3. The back door hinge reinforcement according to claim 1, further comprising an overlapping structure with the drain groove of the back door; the overlapping structure includes one end of the inclined surface being extended and bent downwards to form The overlapping surface makes the hinge reinforcement body as a whole C-shaped, and the lower end of the overlapping surface overlaps the upper part of the back door drainage groove. 4. The rear door hinge reinforcement according to claim 3, characterized in that it further comprises a cable routing structure, the cable routing structure includes a lower concave surface provided on the upper surface of the strip-shaped protrusion adjacent to the overlapping surface , there is a hose through hole on the concave surface.