A lock holding structure for a vehicle pedestrian protection hinge

Abstract

The utility model relates to mechanical technical field, concretely relates to a locking and holding structure for automobile pedestrian protection hinge, including hinge cover sheet metal part, connecting piece and hinge movable arm sheet metal part, is provided with locking cylinder on hinge cover sheet metal part, the locking cylinder inside is slidably arranged with locking pin, and the one end of locking pin is provided with limit sheet, the locking cylinder is still provided with locking spring and baffle piece, hinge movable arm sheet metal part has locking groove, the hinge cover sheet metal part of this design and hinge movable arm sheet metal part realize rotary connection through connecting piece, reduce unnecessary parts, locking pin slides in locking cylinder, cooperate locking spring and baffle piece, can be quickly clamped into the locking groove on hinge movable arm sheet metal part after the trigger of point explosion ware, prevent rotation, ensure the stability and reliability of structure, this design not only reduces production cost, but also simplifies assembly process, improves production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and in particular to a locking and retaining structure for a pedestrian protection hinge for automobiles. Background Technology

[0002] In the field of automotive safety, the pedestrian protection hood hinge is an important safety device. When a vehicle collides with a pedestrian, the detonator triggers the hood hinge to lift the hood quickly to a certain height, providing a buffer space for the pedestrian's head and thus reducing injury. This design improves the vehicle's ability to protect pedestrians to a certain extent, reduces the risk of head injuries to pedestrians in traffic accidents, and is of great significance for improving road traffic safety.

[0003] The existing pedestrian protection shield hinges, after being lifted by the detonator, will oscillate back and forth due to the huge energy impact and eventually fall back. It is difficult to keep the shield at a sufficient height before the pedestrian's head hits the shield, thus failing to fully protect the pedestrian. To solve this problem, a locking plate is currently used as the locking structure.

[0004] However, this structure has obvious drawbacks. Its complex structure contains multiple parts, resulting in high production costs. At the same time, the complex structure also increases the difficulty of assembly and quality control during the production process, affecting the stability and reliability of the product. Utility Model Content

[0005] The purpose of this utility model is to provide a locking and retaining structure for a pedestrian protection hinge for automobiles, aiming to solve the obvious defects of the existing structure, which is complex, contains multiple parts, and results in high production costs; at the same time, the complex structure also increases the difficulty of assembly and quality control during the production process, affecting the stability and reliability of the product.

[0006] To achieve the above objectives, this utility model employs a locking and retaining structure for a pedestrian protection hinge in a vehicle, comprising a hinge cover sheet metal part, a connecting part, and a hinge arm sheet metal part. A locking cylinder is provided on the hinge cover sheet metal part, and a locking pin is slidably disposed within the locking cylinder. The locking pin passes through one end of the locking cylinder and both ends of the hinge cover sheet metal part. A limiting piece is provided at one end of the locking pin. A locking spring and a stop piece are also provided within the locking cylinder, with the locking spring abutting between the limiting piece and the stop piece. The hinge arm sheet metal part has a locking groove. The hinge cover sheet metal part is rotatably connected to the hinge arm sheet metal part via the connecting part and covers the hinge arm sheet metal part.

[0007] The hinge cover sheet metal part has a displacement groove at one end, the hinge arm sheet metal part has a fixing hole at one end, and the connecting part is located between the fixing hole and the displacement groove.

[0008] The baffle is a baffle plate with two locking rods on its outer side. The other end of the locking cylinder is hollow and has two L-shaped locking grooves. The baffle is slidably connected to the locking cylinder and is located at the other end of the locking cylinder. The two locking rods abut against the corresponding L-shaped locking grooves.

[0009] The connecting component includes a limiting plate and a connecting rod. A fixing screw is provided on one end face of the limiting plate, an anti-detachment plate is provided on one end of the connecting rod, and a threaded groove is provided on the other end of the connecting rod. The limiting plate is fixedly connected to the connecting rod by the fixing screw and is located at the other end of the connecting rod. The fixing screw is threaded in the threaded groove, and the connecting rod is located between the fixing hole and the displacement groove.

[0010] The connector also includes multiple anti-rotation screws, which are disposed between the limiting plate and the connecting rod.

[0011] This utility model discloses a locking and retaining structure for a pedestrian protection hinge in a vehicle, comprising a hinge cover sheet metal part, a connecting part, and a hinge arm sheet metal part. A locking cylinder is provided on the hinge cover sheet metal part, and a locking pin is slidably disposed within the locking cylinder. The locking pin passes through one end of the locking cylinder and both ends of the hinge cover sheet metal part. A limiting piece is provided at one end of the locking pin. A locking spring and a stop piece are also provided within the locking cylinder, with the locking spring abutting between the limiting piece and the stop piece. The hinge arm sheet metal part has a locking groove. The hinge cover sheet metal part is connected via a connecting... The connector is rotatably connected to the hinge arm sheet metal part and covers the hinge arm sheet metal part. In this design, the hinge cover sheet metal part and the hinge arm sheet metal part are rotatably connected through the connector, reducing unnecessary parts. The locking pin slides in the locking cylinder and, in conjunction with the locking spring and the baffle, can quickly engage with the locking groove on the hinge arm sheet metal part after the detonator is triggered, preventing rotation and ensuring the stability and reliability of the structure. This design not only reduces production costs but also simplifies the assembly process and improves production efficiency and product quality. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1This is a front perspective view of the locking and retaining structure of the pedestrian protection hinge for automobiles according to this utility model.

[0014] Figure 2 This is a perspective view of the back of the locking and retaining structure of the pedestrian protection hinge for automobiles according to this utility model.

[0015] Figure 3 This is the utility model Figure 1 A magnified view of a portion of point A in the middle.

[0016] Figure 4 This is a front view of the locking and retaining structure of the pedestrian protection hinge for automobiles according to this utility model.

[0017] Figure 5 This is the utility model Figure 4 A cross-sectional view along the BB line.

[0018] Figure 6 This is the utility model Figure 5 A magnified view of a section at point C.

[0019] Figure 7 This is the utility model Figure 4 A cross-sectional view of the DD line.

[0020] 1-Hinge cover sheet metal part, 2-Hinge boom sheet metal part, 3-Locking cylinder, 4-Locking pin, 5-Limiting plate, 6-Locking spring, 7-Baffle plate, 8-Locking groove, 9-Displacement groove, 10-Fixing hole, 11-Locking rod, 12-L-shaped locking groove, 13-Limiting plate, 14-Connecting rod, 15-Fixing screw, 16-Anti-detachment plate, 17-Threaded groove, 18-Anti-rotation screw. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0022] Please see Figures 1 to 7This utility model provides a locking and retaining structure for a pedestrian protection hinge for automobiles, including a hinge cover sheet metal part 1, a connecting part, and a hinge arm sheet metal part 2. The hinge cover sheet metal part 1 is provided with a locking cylinder 3, and a locking pin 4 is slidably disposed in the locking cylinder 3. The locking pin 4 passes through one end of the locking cylinder 3 and both ends of the hinge cover sheet metal part 1. A limiting piece 5 is provided at one end of the locking pin 4. A locking spring 6 and a stop piece are also provided in the locking cylinder 3, and the locking spring 6 abuts between the limiting piece 5 and the stop piece. The hinge arm sheet metal part 2 has a locking groove 8. The hinge cover sheet metal part 1 is rotatably connected to the hinge arm sheet metal part 2 through the connecting part and covers the hinge arm sheet metal part 2.

[0023] In this embodiment, through the coordinated action of the hinge cover sheet metal part 1, the locking cylinder 3, the locking pin 4, the locking spring 6, and the hinge arm sheet metal part 2, after the detonator is triggered, the locking spring 6 pushes the locking pin 4 into the locking groove 8 of the hinge arm sheet metal part 2, effectively preventing the hinge cover from falling back and ensuring that the pedestrian's head maintains sufficient height when hitting the front cover. This design simplifies the complexity of the traditional clamping plate structure, reduces the number of parts, lowers production costs, and improves the stability and reliability of the structure.

[0024] Furthermore, one end of the hinge cover sheet metal part 1 has a displacement groove 9, one end of the hinge arm sheet metal part 2 has a fixing hole 10, and the connecting member is located between the fixing hole 10 and the displacement groove 9.

[0025] In this embodiment, the design of the displacement groove 9 and the fixing hole 10, combined with the connecting member, enables a rotational connection, allowing the hinge cover sheet metal part 1 to rotate smoothly relative to the hinge arm sheet metal part 2.

[0026] Furthermore, the baffle is a baffle plate 7, and two locking rods 11 are provided on the outer side of the baffle plate 7. The other end of the locking cylinder 3 is hollow and has two L-shaped locking grooves 12. The baffle is slidably connected to the locking cylinder 3 and is located at the other end of the locking cylinder 3. The two locking rods 11 respectively abut against the corresponding L-shaped locking grooves 12.

[0027] In this embodiment, the locking rod 11 engages with the L-shaped locking groove 12 of the locking cylinder 3 to achieve precise positioning and stable support for the locking pin 4. This design not only improves the stability of the locking pin 4 during sliding but also achieves a reliable locking function through a simple mechanical structure, avoiding increased failure rates and maintenance costs due to complex structures, thus enhancing the product's durability and economy.

[0028] Furthermore, the connector includes a limiting plate 13 and a connecting rod 14. One end face of the limiting plate 13 is provided with a fixing screw 15, one end of the connecting rod 14 is provided with an anti-detachment piece 16, and the other end of the connecting rod 14 has a threaded groove 17. The limiting plate 13 is fixedly connected to the connecting rod 14 by the fixing screw 15 and is located at the other end of the connecting rod 14. The fixing screw 15 is threaded in the threaded groove 17, and the connecting rod 14 is located between the fixing hole 10 and the displacement groove 9.

[0029] In this embodiment, the threaded connection between the limiting plate 13 and the connecting rod 14, combined with the design of the anti-detachment plate 16, achieves a stable connection between the hinge cover sheet metal part 1 and the hinge arm sheet metal part 2.

[0030] Furthermore, the connector also includes a plurality of anti-rotation screws 18, which are disposed between the limiting plate 13 and the connecting rod 14.

[0031] In this embodiment, by providing a plurality of anti-rotation screws 18 between the limiting plate 13 and the connecting rod 14, relative rotation of the connecting parts during use is effectively prevented, ensuring the stability and consistency of the connection between the hinge cover sheet metal part 1 and the hinge arm sheet metal part 2.

[0032] In this utility model, when the detonator triggers and lifts the hinge cover sheet metal part 1, the hinge cover sheet metal part 1 rotates relative to the hinge arm sheet metal part 2 around the connector. Before rotation, the locking spring 6 is compressed by the locking pin 4. When it rotates to a specific position, the locking pin 4 is in a free state due to the change in the internal structure of the locking cylinder 3. At this time, the locking spring 6 resets and pushes the locking pin 4 to extend and engage in the locking groove 8 on the hinge arm sheet metal part 2, preventing the hinge cover sheet metal part 1 from rotating, thereby realizing the pedestrian protection function.

[0033] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A locking and retaining structure for a pedestrian protection hinge in a vehicle, characterized in that, The device includes a hinge cover sheet metal part, a connector, and a hinge arm sheet metal part. The hinge cover sheet metal part is provided with a locking cylinder, and a locking pin is slidably disposed inside the locking cylinder. The locking pin passes through one end of the locking cylinder and both ends of the hinge cover sheet metal part. One end of the locking pin is provided with a limiting piece. The locking cylinder is also provided with a locking spring and a stop piece, and the locking spring abuts between the limiting piece and the stop piece. The hinge arm sheet metal part has a locking groove. The hinge cover sheet metal part is rotatably connected to the hinge arm sheet metal part through the connector and covers the hinge arm sheet metal part.

2. The locking and retaining structure for a pedestrian protection hinge for automobiles as described in claim 1, characterized in that, One end of the hinge cover sheet metal part has a displacement groove, one end of the hinge arm sheet metal part has a fixing hole, and the connector is located between the fixing hole and the displacement groove.

3. The locking and retaining structure for a pedestrian protection hinge for automobiles as described in claim 2, characterized in that, The baffle is a baffle plate, and two locking rods are provided on the outer side of the baffle plate. The other end of the locking cylinder is hollow and has two L-shaped locking grooves. The baffle is slidably connected to the locking cylinder and is located at the other end of the locking cylinder. The two locking rods abut against the corresponding L-shaped locking grooves.

4. The locking and retaining structure for a pedestrian protection hinge for automobiles as described in claim 3, characterized in that, The connector includes a limiting plate and a connecting rod. A fixing screw is provided on one end face of the limiting plate, an anti-detachment plate is provided on one end of the connecting rod, and a threaded groove is provided on the other end of the connecting rod. The limiting plate is fixedly connected to the connecting rod by the fixing screw and is located at the other end of the connecting rod. The fixing screw is threaded in the threaded groove, and the connecting rod is located between the fixing hole and the displacement groove.

5. The locking and retaining structure for a pedestrian protection hinge for automobiles as described in claim 4, characterized in that, The connector also includes a plurality of anti-rotation screws, which are disposed between the limiting plate and the connecting rod.

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