Limiting type engine hood hinge

Abstract

The utility model relates to hinge technical field discloses a limit formula engine cover hinge, including the connecting assembly for realizing the stable connection of engine cover on the car body, is provided with the movable assembly for realizing the opening and closing action in the connecting assembly, is provided with the limiting assembly for limiting the maximum opening angle of engine cover in the connecting assembly, when opening, engine cover drives movable page rotation, approaches maximum angle, and the limiting tongue is cooperated with the limiting groove of movable page, and is clamped to maximum angle, and torsional spring and movable connecting rod supplementary restriction rotation, make engine cover stable keep opening angle, convenient operation, when closing, exert force and let movable page reverse rotation, and the cooperation structure is separated, and torsional spring and movable connecting rod return initial state, until engine cover closes, can limit maximum opening angle through limiting assembly, avoid interference, collision or damage hinge, still can let engine cover keep stable in reasonable angle, and it is convenient to overhaul.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically to a limiting type engine hood hinge. Background Technology

[0002] With the continuous development of the automotive industry, consumers have put forward higher requirements for the convenience, safety and space utilization efficiency of automobiles. Against this background, it is urgent to develop a new type of engine hood hinge structure. This new hinge structure needs to have the function of automatically limiting the engine hood after it is opened, avoiding the cumbersome process of manually operating the struts. At the same time, it should be able to reliably limit the engine hood in both opening and closing directions, ensuring the stability and safety of the engine hood under various conditions. In addition, the new hinge should also have the advantages of small space occupation, simple structure, long service life and effective protection of pedestrian and driver safety, so as to meet the multifaceted needs of modern automobile design and manufacturing. Chinese patent CN106593159B discloses an MPV engine hood hinge, including a hinge stationary piece and a hinge moving piece. The hinge stationary piece is connected to the hinge moving piece via a shaft. Both the hinge stationary and moving pieces have several mounting holes, and each mounting hole contains a rubber sleeve. A retaining ring is mounted on one side of the hinge stationary piece and on the shaft, while protective sleeves are mounted on both sides of the hinge moving piece and on the shaft. This invention has a simple structure, low cost, and strong practicality. By providing rubber sleeves, friction between the mounting holes and screws is avoided during engine vibration, preventing hinge wear. The rubber sleeves also have a shock-absorbing function, reducing the impact force generated by the collision between the hinge and screws, thus protecting the hinge. The protective sleeves prevent damage caused by mutual friction between the hinge stationary and moving pieces. Furthermore, the hinge stationary and moving pieces are connected by a shaft and can be disassembled, facilitating the replacement of damaged parts and reducing replacement costs. However, the following shortcomings still exist: When the hood is opened, the angle is easily shaken or even falls back due to vibration or external force, which makes maintenance inconvenient. It can also cause the hinge and other components to wear and deform due to excessive force. The hood may also deform, affecting the seal. In addition, it is easy to collide with the body parts. In extreme cases, it can obstruct the view and cause accidents, and also increases the risk of pedestrian injury. Moreover, it is more difficult to open and the user experience is poor. Therefore, those skilled in the art provide a limiting type hood hinge to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this utility model is to provide a limiting engine hood hinge to solve the problems mentioned in the background art above.

[0004] This utility model provides the following technical solution: a limiting engine hood hinge, including a connecting component for stably connecting the engine hood to the vehicle body, wherein the connecting component is provided with a movable component for realizing opening and closing actions, and the connecting component is provided with a limiting component for limiting the maximum opening angle of the engine hood.

[0005] As a preferred embodiment of the above technical solution, the connecting component includes a fixed page, and a movable page is movably connected to one side of the fixed page.

[0006] As a preferred embodiment of the above technical solution, the movable component includes a movable link one, which is movably connected to the upper side of the fixed page near the lower side of the movable page, and a movable link two is movably connected to the other side of the movable link one near the lower side of the movable page.

[0007] As a preferred embodiment of the above technical solution, both the lower ends of the movable connecting rod 1 and the movable connecting rod 2 are provided with shaft holes near the top surface of the fixed page. A shaft pin is rotatably connected inside each of the two shaft holes. A fixing plate 1 is fixedly installed on the outside of each of the two shaft pins near the upper end of the shaft hole. A fixing ring is fixedly connected to the upper end of each of the two fixing plates 1 near the upper end of the movable connecting rod 1 and the movable connecting rod 2.

[0008] As a preferred embodiment of the above technical solution, the limiting component includes a second fixing plate, which is fixedly installed at the corner of one side of the fixed page. The second fixing plate has a slot on its side, and a fixing rod is fixedly connected to the side of the second fixing plate near the movable page. A slot is formed in the middle of the upper end of the fixing rod, and a torsion spring is inserted inside the slot near the outside of the slot.

[0009] As a preferred embodiment of the above technical solution, a limiting tongue is fixedly installed on the inner side of the vertical end of the fixed page. The front end of the limiting tongue is U-shaped. There are two limiting tongues. A limiting groove is opened on one side of each limiting tongue near the lower inner end of the movable page. The limiting groove and the limiting tongue are compatible.

[0010] Compared with the prior art, the beneficial effects of this utility model are: When this invention is opened, the engine hood drives the movable flap to rotate. When it approaches the maximum angle, the limiting tongue engages with the limiting groove of the movable flap, locking at the maximum angle. The torsion spring and the movable link further limit the rotation, keeping the engine hood stably at the opening angle for easy operation. When closing, force is applied to make the movable flap rotate in the opposite direction, disengaging the engaging structure. The torsion spring and the movable link return to their initial state until the engine hood is closed. The limiting component can limit the maximum opening angle, preventing interference, collision, or damage to the hinge. It also allows the engine hood to be stably maintained at a reasonable angle, facilitating maintenance. Attached Figure Description

[0011] Figure 1A frontal three-dimensional structural diagram of a limiting engine hood hinge; Figure 2 A rear-view three-dimensional structural diagram of a limiting type engine hood hinge; Figure 3 This is a schematic diagram of the overall disassembly and three-dimensional structure of a limiting engine hood hinge.

[0012] 1. Connecting component; 101. Fixed page; 102. Moving page; 2. Moving component; 201. Moving link one; 202. Moving link two; 203. Shaft hole; 204. Shaft pin; 205. Fixed plate one; 206. Fixed ring; 3. Limiting component; 301. Fixed plate two; 302. Fixed lever; 303. Torsion spring; 304. Limiting tongue; 305. Limiting groove. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] Please see Figures 1-3 As shown, this utility model provides a technical solution: a limiting engine hood hinge, including a connecting component 1 for stably connecting the engine hood to the vehicle body, a movable component 2 for opening and closing actions within the connecting component 1, and a limiting component 3 for limiting the maximum opening angle of the engine hood within the connecting component 1.

[0015] As one implementation method in this embodiment, please refer to Figure 3 As shown, the active component 2 includes an active link 201, which is movably connected to the upper side of the fixed page 101 near the lower side of the active page 102. An active link 202 is movably connected to the other side of the active link 201 near the lower side of the active page 102. Both the active link 201 and the active link 202 have shaft holes 203 at their lower ends near the top surface of the fixed page 101. A shaft pin 204 is rotatably connected inside both shaft holes 203. A fixing plate 205 is fixedly installed on the outside of both shaft pins 204 near the upper end of the shaft holes 203. A fixing ring 206 is fixedly connected to the upper end of both fixing plates 205 near the upper ends of the active link 201 and the active link 202. Furthermore, when the hood is closed, the first movable link 201 and the second movable link 202 retract relative to each other, approaching the fixed page 101 and the movable page 102. At this time, the torsion spring 303 is compressed and in an energy-storing state, storing energy for opening the hood. When opening, the hood drives the movable page 102 to rotate around the hinge rotation center, which in turn pulls the first movable link 201. The first movable link 201 then drives the second movable link 202 to move. Both rotate around the pivot pin 204. During this process, the torsion spring 303 releases the stored energy, assisting the movement of the movable component 2, making it easier to open the hood. As the first movable link 201 and the second movable link 202 gradually unfold, the hood can be opened to the set position. When the hood is closed, a downward force is applied to the engine hood, causing the movable leaf 102 to rotate in the opposite direction. This pushes the movable link 1 201, which in turn causes the movable link 2 202 to gradually contract. During this process, the torsion spring 303 is recompressed and stores energy. At the same time, the movement of the movable component 2 guides the closing of the engine hood, ensuring that it can accurately and smoothly engage with the body's closing part. Therefore, the movable component 2, in conjunction with the connecting component 1 and the limiting component 3, assists in limiting the engine hood when it is opened to a specific angle, using its own structure and cooperation with other components to keep it stably open. When closing, it also plays a guiding and buffering role, ensuring accurate and smooth closing.

[0016] As one implementation method in this embodiment, please refer to Figure 3 As shown, the limiting component 3 includes a second fixing plate 301, which is fixedly installed at the corner of one side of the fixed page 101. The side of the second fixing plate 301 has a slot. A fixing rod 302 is fixedly connected to the corresponding side of the second fixing plate 301 near the movable page 102. A slot is opened in the middle of the upper end of the fixing rod 302. A torsion spring 303 is inserted inside the slot near the outside of the slot. A limiting tongue 304 is fixedly installed on the inner side of the vertical end of the fixed page 101. The front end of the limiting tongue 304 is U-shaped. There are two limiting tongues 304. A limiting groove 305 is opened on the lower side of the inner side of the movable page 102 on one side of each limiting tongue 304. The limiting groove 305 and the limiting tongue 304 are compatible. Furthermore, when the hood is opened, the hood causes the movable flap 102 to rotate around the hinge rotation center. As the rotation approaches the maximum set opening angle, the limiting tongue 304 gradually approaches and engages with the limiting groove 305 of the movable flap 102. When the maximum angle is reached, the U-shaped structure at the front end of the limiting tongue 304 engages with the corresponding structure of the movable flap 102 in the limiting groove 305 to form a lock. The torsion spring 303 and the movable connecting rod components, through their own elasticity or structural characteristics, help to limit the movable flap 102 from continuing to rotate, thereby limiting the opening angle of the hood to the maximum range and keeping it stably at that angle, facilitating the opening of the engine hood. When the engine compartment is closed, downward force is applied to the engine hood, causing the movable flap 102 to rotate in the opposite direction. The structure on the movable flap 102 that cooperates with the limiting tongue 304 and the limiting groove 305 disengages. The torsion spring 303 and the movable linkage component return to their initial state as the movable flap 102 rotates until the engine hood is completely closed and the movable flap 102 is close to the fixed flap 101. Therefore, the maximum opening angle of the engine hood can be limited by the limiting component 3 to avoid interference, collision or damage to the hinges with the body components due to excessive opening. It can also keep the engine hood stable at a reasonable angle, which is convenient for engine compartment maintenance.

[0017] Working principle: When the engine hood is closed, movable link 1 201 and movable link 2 202 retract and approach the fixed page 101 and movable page 102, and the torsion spring 303 is compressed and stores energy. When opening, the movable page 102 drives the movable link to move, and the torsion spring 303 releases energy to assist, so that the engine hood can be easily opened to the limit angle. When closing, the engine hood drives the movable page 102 to rotate in the opposite direction, the movable link retracts, and the torsion spring 303 stores energy again. At the same time, the movable component 2 serves as a closing guide to ensure accurate and smooth closing. The movable component 2, together with other components, realizes the opening limit and closing guide buffer. When the hood is opened, the hood drives the movable flap 102 to rotate. When it approaches the maximum angle, the limiting tongue 304 engages with the limiting groove 305 of the movable flap 102. When the maximum angle is reached, they lock together. The torsion spring 303 and the movable link help limit the rotation, so that the hood can be stably maintained at the opening angle for easy operation. When closing, force is applied to make the movable flap 102 rotate in the opposite direction, disengaging the engagement structure. The torsion spring 303 and the movable link return to their initial state until the hood is closed. The limiting component 3 can limit the maximum opening angle to avoid interference, collision or damage to the hinge, and can also keep the hood stably maintained at a reasonable angle for easy maintenance.

[0018] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A limiting type engine hood hinge, comprising a connecting component (1) for stably connecting the engine hood to the vehicle body, characterized in that: The connecting component (1) is provided with an active component (2) for realizing opening and closing actions, and the connecting component (1) is provided with a limiting component (3) for limiting the maximum opening angle of the engine hood. The connecting component (1) includes a fixed page (101), and a movable page (102) is movably connected to one side of the fixed page (101). The active component (2) includes an active link one (201), which is movably connected to the upper side of the fixed page (101) near the lower side of the active page (102), and an active link two (202) is movably connected to the other side of the active link one (201) near the lower side of the active page (102). The limiting component (3) includes a second fixing plate (301), which is fixedly installed at the corner of one side of the fixed page (101). The second fixing plate (301) has a slot on its side. A fixing rod (302) is fixedly connected to the side of the second fixing plate (301) near the movable page (102). A slot is provided in the middle of the upper end of the fixing rod (302). A torsion spring (303) is inserted inside the slot near the outside of the slot. A limiting tongue (304) is fixedly installed on the inner side of the vertical end of the fixed page (101). The front end of the limiting tongue (304) is U-shaped. There are two limiting tongues (304). A limiting groove (305) is opened on one side of the two limiting tongues (304) near the lower inner side of the movable page (102). The limiting groove (305) and the limiting tongue (304) are compatible.

2. The limiting type engine hood hinge according to claim 1, characterized in that: The lower ends of the first movable link (201) and the second movable link (202) are provided with shaft holes (203) near the top surface of the fixed page (101). The two shaft holes (203) are rotatably connected with shaft pins (204). The two shaft pins (204) are fixedly installed with fixing plates (205) near the upper ends of the shaft holes (203). The upper ends of the two fixing plates (205) are fixedly connected with fixing rings (206) near the upper ends of the first movable link (201) and the second movable link (202).

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