A cushion structure of an engine hood inner panel

Abstract

The utility model relates to the technical field of engine hatch plate, specifically is a kind of buffer structure of engine cover inner plate, including engine cabin, the utility model can be by pressing down engine hatch plate, to make engine hatch plate drive guide rail to move, at this time, under the action of connecting rod, slider will move under the guidance of guide rail, when slider moves to certain position and will be in abutment with rubber buffer block, to push the compression rod to move using rubber buffer block, when compression rod moves, second spring will be compressed, simultaneously with the elasticity of second spring, second telescopic rod is also pushed to move, to compress first spring in turn, the elasticity of first spring and second telescopic rod is reversely acted on engine hatch plate, to unload force by first spring and second telescopic rod to the excess force when pressing down engine hatch plate to close engine cabin cover, to realize the effect of buffering and damping.

Description

Technical Field

[0001] This utility model relates to the field of engine hood cover technology, specifically a buffer structure for the inner panel of an engine hood. Background Technology

[0002] The hood closure buffer structure is a key auxiliary component of the hood inner panel. Its core function is to prevent the hood from making hard contact with the inner panel, reduce closing noise, reduce component wear, and ensure a smooth and controllable closing process. As car users' requirements for operating comfort and component durability increase, the drawbacks of traditional buffer structures are becoming increasingly apparent.

[0003] In existing technologies, engine hood closing buffers often use a single piston rod as an auxiliary device. This device generates a push when lifting, making it easy to open. However, when the hood closes, it often results in a hard collision between the hood and the engine compartment, leading to concentrated impact force and loud noise. Furthermore, excessive force can easily cause deformation at the point of contact between the hood and the engine compartment. Some devices with buffer structures rely on applying grease during production, lacking a continuous replenishment mechanism. With repeated use, this can easily cause problems such as jamming and uneven opening and closing of the hood. Therefore, we propose a buffer structure for the inner panel of the engine hood to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a buffer structure for the inner panel of an engine hood to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is: a buffer structure for the inner panel of an engine hood, including an engine compartment, an engine hood hinged to the upper surface of the engine compartment, a push rod device inside the engine compartment, a buffer device inside the engine compartment, and a lubrication device inside the engine compartment.

[0006] Preferably, the push rod device includes a guide rail, the upper surface of which is fixedly connected to the inner wall of the engine cover, a slider is slidably connected to the inner wall of the guide rail, a connecting rod is hinged to the lower surface of the slider, and the end of the connecting rod away from the slider is rotatably connected to the inner wall of the engine compartment.

[0007] Preferably, the buffer device includes a fixed base plate, the surface of which is fixedly connected to the inner wall of the engine cover. A first telescopic rod is fixedly connected to the side wall of the fixed base plate, a first spring is fixedly connected to the inner wall of the first telescopic rod, a second telescopic rod is slidably connected to the inner wall of the first telescopic rod, a second spring is fixedly connected to the inner wall of the second telescopic rod, a pressure rod is slidably connected to the inner wall of the second telescopic rod, a connecting plate is fixedly connected to the side wall of the pressure rod, and a rubber buffer block is fixedly connected to the side wall of the connecting plate.

[0008] Preferably, the lubrication device includes a one-way plunger pump, the left end of which is fixedly connected to the side wall of the fixed base plate, the piston end of which is fixedly connected to the side wall of the connecting plate, an oil collection box fixedly connected to the lower surface of the fixed base plate, an oil storage box fixedly connected to the lower surface of the oil collection box, a first oil guide pipe fixedly connected to the side wall of the oil storage box, and a second oil guide pipe fixedly connected to the surface of the one-way plunger pump.

[0009] Preferably, the oil reservoir is connected to a one-way plunger pump via a first oil guide pipe, and the one-way plunger pump is connected to a first telescopic rod via a second oil guide pipe.

[0010] Preferably, the inner wall of the oil collecting box has a plurality of parallel circular holes, and the oil collecting box is connected to the oil storage box through the circular holes.

[0011] This utility model provides an improved buffer structure for the inner panel of an engine hood, which has the following improvements and advantages compared with the prior art: Firstly, this utility model involves pressing down the engine cover, which causes the engine cover to move along the guide rail. At this time, under the action of the connecting rod, the slider moves under the guidance of the guide rail. When the slider moves to a certain position, it will abut against the rubber buffer block, thereby using the rubber buffer block to push the pressure rod to move. When the pressure rod moves, the second spring will be compressed. At the same time, the elasticity of the second spring will push the second telescopic rod to move, which in turn compresses the first spring. This causes the elasticity of the first spring and the second telescopic rod to act in opposite directions on the engine cover. Thus, when the engine cover is pressed down to close the engine hood, the first spring and the second telescopic rod will relieve excess force, thereby achieving the effect of buffering and shock absorption.

[0012] Secondly, this utility model, by lifting the engine cover, causes the engine cover to move along the guide rail. At this time, under the action of the connecting rod, the slider moves under the guidance of the guide rail. When the slider moves to a certain position, the elastic potential energy of the first spring and the second telescopic rod is released, thereby pushing the connecting plate to move. At this time, the connecting plate drives the one-way plunger pump to work, thereby pumping the lubricating oil in the oil reservoir into the one-way plunger pump through the first oil guide pipe. By pressing down the engine cover, the rubber buffer block will squeeze the connecting plate, and then squeeze the piston end of the one-way plunger pump, pumping the lubricating oil in the one-way plunger pump into the first spring through the second oil guide pipe, thereby achieving lubrication of the inside of the first spring and the second telescopic rod. At the same time, excess lubricating oil overflows and flows back into the oil reservoir through the oil collection box for storage, ultimately achieving lubrication of the inside of the first telescopic rod and the second telescopic rod, increasing the service life and smoothness of the buffer device. Attached Figure Description

[0013] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the lower cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the front sectional view of this utility model; Figure 4 for Figure 3 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the front sectional view of this utility model; Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle.

[0014] Explanation of reference numerals in the attached figures: 1. Engine compartment; 2. Engine cover; 3. Guide rail; 4. Slider; 5. Connecting rod; 6. Fixed base plate; 7. First telescopic rod; 8. First spring; 9. Second telescopic rod; 10. Second spring; 11. Pressure rod; 12. Connecting plate; 13. Rubber buffer block; 14. One-way plunger pump; 15. Oil collection box; 16. Oil reservoir; 17. First oil guide pipe; 18. Second oil guide pipe. Detailed Implementation

[0015] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0016] This utility model provides an improved buffer structure for the inner panel of an engine hood. The technical solution of this utility model is as follows: like Figure 1 - Figure 6 As shown, a buffer structure for an inner panel of an engine hood includes an engine compartment 1, an engine cover plate 2 hinged to the upper surface of the engine compartment 1, a push rod device inside the engine compartment 1, a buffer device inside the engine compartment 1, and a lubrication device inside the engine compartment 1.

[0017] Furthermore, the push rod device includes a guide rail 3, the upper surface of which is fixedly connected to the inner wall of the engine cover 2. A slider 4 is slidably connected to the inner wall of the guide rail 3, and a connecting rod 5 is hinged to the lower surface of the slider 4. The end of the connecting rod 5 away from the slider 4 is rotatably connected to the inner wall of the engine compartment 1. By setting the connecting rod 5, the slider 4 is driven to slide in the guide rail 3 by the force of the connecting rod 5, thereby realizing that the rubber buffer block 13 abuts against the slider 4 and buffers the closing of the engine cover 2.

[0018] Furthermore, the buffer device includes a fixed base plate 6, the surface of which is fixedly connected to the inner wall of the engine cover 2. A first telescopic rod 7 is fixedly connected to the side wall of the fixed base plate 6. A first spring 8 is fixedly connected to the inner wall of the first telescopic rod 7. A second telescopic rod 9 is slidably connected to the inner wall of the first telescopic rod 7. A second spring 10 is fixedly connected to the inner wall of the second telescopic rod 9. A pressure rod 11 is slidably connected to the inner wall of the second telescopic rod 9. A connecting plate 12 is fixedly connected to the side wall of the pressure rod 11. A rubber buffer block 13 is fixedly connected to the side wall of the connecting plate 12. By setting the second spring 10 and the first spring 8, the elasticity of the first spring 8 and the second spring 10 pushes the rubber buffer block 13 to achieve buffering during the stage when the engine cover 2 is about to close.

[0019] Furthermore, the lubrication device includes a one-way plunger pump 14. The left end of the one-way plunger pump 14 is fixedly connected to the side wall of the fixed base plate 6, and the piston end of the one-way plunger pump 14 is fixedly connected to the side wall of the connecting plate 12. An oil collection box 15 is fixedly connected to the lower surface of the fixed base plate 6, and an oil storage box 16 is fixedly connected to the lower surface of the oil collection box 15. A first oil guide pipe 17 is fixedly connected to the side wall of the oil storage box 16, and a second oil guide pipe 18 is fixedly connected to the surface of the one-way plunger pump 14. By setting up the one-way plunger pump 14, the lubricating oil is driven to flow by the pressure of the one-way plunger pump 14, thereby achieving lubrication of the first telescopic rod 7 and the second telescopic rod 9.

[0020] Furthermore, the oil reservoir 16 is connected to the one-way piston pump 14 through the first oil guide pipe 17, and the one-way piston pump 14 is connected to the first telescopic rod 7 through the second oil guide pipe 18. By setting the oil reservoir 16 to be connected to the one-way piston pump 14 through the first oil guide pipe 17, and the one-way piston pump 14 to be connected to the first telescopic rod 7 through the second oil guide pipe 18, lubrication can be achieved.

[0021] Furthermore, the inner wall of the oil collection box 15 is provided with a plurality of parallel circular holes. The oil collection box 15 is connected to the oil storage box 16 through the circular holes. By providing a plurality of parallel circular holes on the inner wall of the oil collection box 15 and connecting the oil collection box 15 to the oil storage box 16 through the circular holes, the overflowing lubricating oil can be returned to the oil storage box 16.

[0022] Working principle: By pressing down the engine cover 2, the engine cover 2 moves the guide rail 3. At this time, under the action of the connecting rod 5, the slider 4 moves under the guidance of the guide rail 3. When the slider 4 moves to a certain position, it will abut against the rubber buffer block 13, thereby using the rubber buffer block 13 to push the pressure rod 11 to move. When the pressure rod 11 moves, the second spring 10 will be compressed. At the same time, the elasticity of the second spring 10 will push the second telescopic rod 9 to move, which in turn compresses the first spring 8. The elasticity of the first spring 8 and the second telescopic rod 9 acts in opposite directions on the engine cover 2. Thus, when the engine cover 2 is pressed down to close, the first spring 8 and the second telescopic rod 9 will relieve excess force, thereby achieving the effect of buffering and shock absorption. Then, by lifting the engine cover 2, the engine cover 2 moves the guide rail 3. At this time, under the action of the connecting rod 5... The slider 4 moves under the guidance of the guide rail 3. When the slider 4 moves to a certain position, the elastic potential energy of the first spring 8 and the second telescopic rod 9 is released, thereby pushing the connecting plate 12 to move. At this time, the connecting plate 12 will drive the one-way plunger pump 14 to work, thereby pumping the lubricating oil in the oil reservoir 16 into the one-way plunger pump 14 through the first oil guide pipe 17. By pressing down the engine cover plate 2, the rubber buffer block 13 will squeeze the connecting plate 12, and then squeeze the piston end of the one-way plunger pump 14, pumping the lubricating oil in the one-way plunger pump 14 into the first spring 8 through the second oil guide pipe 18, thereby achieving lubrication of the inside of the first spring 8 and the second telescopic rod 9. At the same time, the excess lubricating oil overflows and flows back into the oil reservoir 16 through the oil collection box 15 for storage, ultimately achieving lubrication of the inside of the first telescopic rod 7 and the second telescopic rod 9, increasing the service life and smoothness of the buffer device.

[0023] The foregoing description enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A buffer structure for the inner panel of an engine hood, comprising an engine compartment (1), characterized in that: An engine cover plate (2) is hinged to the upper surface of the engine compartment (1), a push rod device is provided inside the engine compartment (1), a buffer device is provided inside the engine compartment (1), and a lubrication device is provided inside the engine compartment (1). The buffer device includes a fixed base plate (6), the surface of which is fixedly connected to the inner wall of the engine cover plate (2), a first telescopic rod (7) is fixedly connected to the side wall of the fixed base plate (6), a first spring (8) is fixedly connected to the inner wall of the first telescopic rod (7), a second telescopic rod (9) is slidably connected to the inner wall of the first telescopic rod (7), a second spring (10) is fixedly connected to the inner wall of the second telescopic rod (9), a pressure rod (11) is slidably connected to the inner wall of the second telescopic rod (9), a connecting plate (12) is fixedly connected to the side wall of the pressure rod (11), and a rubber buffer block (13) is fixedly connected to the side wall of the connecting plate (12). The lubrication device includes a one-way plunger pump (14), the left end of which is fixedly connected to the side wall of the fixed base plate (6), the piston end of which is fixedly connected to the side wall of the connecting plate (12), an oil collection box (15) is fixedly connected to the lower surface of the fixed base plate (6), an oil storage box (16) is fixedly connected to the lower surface of the oil collection box (15), a first oil guide pipe (17) is fixedly connected to the side wall of the oil storage box (16), and a second oil guide pipe (18) is fixedly connected to the surface of the one-way plunger pump (14); the oil storage box (16) is connected to the one-way plunger pump (14) through the first oil guide pipe (17); and the one-way plunger pump (14) is connected to the first telescopic rod (7) through the second oil guide pipe (18).

2. The buffer structure for the inner panel of an engine hood according to claim 1, characterized in that: The push rod device includes a guide rail (3), the upper surface of which is fixedly connected to the inner wall of the engine cover (2), a slider (4) is slidably connected to the inner wall of the guide rail (3), a connecting rod (5) is hinged to the lower surface of the slider (4), and the end of the connecting rod (5) away from the slider (4) is rotatably connected to the inner wall of the engine compartment (1).

3. The buffer structure for the inner panel of an engine hood according to claim 1, characterized in that: The inner wall of the oil collection box (15) is provided with a plurality of parallel circular holes, and the oil collection box (15) is connected to the oil storage box (16) through the circular holes.

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