Front sealing strip structure of automobile engine cover

By setting grooves and stress-relieving notches on the front sealing strip of the car engine hood, installation stress is eliminated, the problems of sealing strip collapse and wrinkling are solved, reliable sealing is achieved, and sealing performance is improved.

CN223605689UActive Publication Date: 2025-11-28YIBIN COWIN AUTO CO LTD
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Patent Information

Application Number
CN202520127902.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-11-28
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Existing automotive engine hood front sealing strips are prone to problems such as not fitting properly with the outer hood panel, collapsing, and wrinkling at the installation location after years of use, affecting sealing performance.

Method used

Design a front sealing strip structure for an automotive engine hood. The structure uses a long strip-shaped sealing strip body with groove weakening points and stress relief notches. It is fixed to the inner panel of the engine hood by a buckle, ensuring that the sealing strip is bent into a V-shape during installation to eliminate stress, avoid collapse and wrinkles, and achieve a reliable seal.

Benefits of technology

Ensure the sealing strip fits well against the inner panel of the engine hood to prevent warping and wrinkling, thereby improving sealing performance and effectiveness.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223605689U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of automobile engine covers, and discloses a front sealing strip structure of an automobile engine cover. The sealing strip body (9) comprises a connecting body part (10) and a sealing strip part (1), a groove weakening point (4) is arranged on the connecting body part (10), the connecting body part (10) is connected to the position of the lower surface of an engine cover inner plate (6), and the sealing surface cross beam decorative plate (7) is located at the position below the engine cover inner plate (6). The front sealing strip structure of the automobile engine cover is simple in structure, when the engine cover is closed, it is ensured that the sealing strip body deforms in place, reliable sealing of the part of the engine cover is achieved, and wrinkling and warping are avoided.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile engine cover, more specifically, relate to a front sealing strip structure of automobile engine cover. BACKGROUND

[0002] On the car, the front sealing strip of the automobile engine cover has been widely used in the front part of the automobile engine compartment, and plays the main functions of sealing, dust prevention, noise reduction, and anti-abnormal sound. The front sealing strip of the hood of some models is installed on the inner panel of the hood. With the increase of the service life of the vehicle, the front sealing strip of the hood may not fit with the outer panel of the hood, collapse, not fit well, and have wrinkles on the installation surface, which affects the performance. In summary, the defects of the prior art are: 1. the hood sealing strip does not fit with the outer panel of the hood; 2. the hood sealing strip collapses and separates from the seam; 3. the front sealing strip of the hood is wrinkled at the installation position.

[0003] In the prior art, there is a technology named "automobile engine compartment sealing structure" and a publication (announcement) number "CN210437268U". The technology provides an automobile engine compartment sealing structure in the technical field of automobiles. It solves the technical problem of poor sealing condition of the automobile engine compartment. The automobile engine compartment sealing structure includes an engine compartment, an engine cover, a fender, a daytime running lamp, a decorative hardboard, and a sealing strip. The engine compartment is provided with an engine cover above. The engine compartment is provided with a decorative hardboard inside. The front and rear ends of the decorative hardboard are fixed to the front bumper and the vehicle body respectively. The left and right side edges of the decorative hardboard are provided with sealing strips respectively. The sealing strips are located at the gap formed by the engine cover, the fender, and the daytime running lamp. The sealing strips are in contact with the engine cover, the fender, and the daytime running lamp respectively. The decorative hardboard is provided with a sealing gasket at the fixed position of the front bumper. The sealing strips are in contact with the fender, the vehicle body, and the sealing gasket at the connection positions. The automobile engine compartment sealing structure is in a closed state, and the engine compartment has good sealing performance. The technology does not involve the technical problems and technical solutions of the present application. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problems: in view of the defects of the prior art, a simple structure is provided. When the engine cover is closed, the sealing strip body is deformed in place, reliable sealing of the engine cover part is realized, and the automobile engine cover front sealing strip structure is avoided.

[0005] To solve the above technical problems, the utility model adopts the technical scheme:

[0006] The utility model discloses a front sealing strip structure of automobile engine cover, and the sealing strip body includes a connecting body part and a sealing strip part. A groove weakening point is arranged on the connecting body part. The connecting body part is connected to the lower surface position of the engine cover inner panel. The sealing surface beam decorative plate is located below the engine cover inner panel.

[0007] The sealing strip body is a long strip structure, the groove weakening point is a long groove structure, and the groove weakening point extends from one end of the sealing strip body to the other end.

[0008] The sealing surface crossbeam decorative plate is arranged below the front bumper.

[0009] The connecting body part is fixedly connected in the mounting hole of the engine cover inner plate through a plurality of buckles, and the plurality of buckles extend from one end of the connecting body part to the other end.

[0010] The protruding sealing protruding part is arranged at the front end of the connecting body part.

[0011] The connecting body part of the sealing strip body is arranged with a force relieving gap.

[0012] The engine cover outer plate is arranged above the engine cover inner plate, and the front end of the engine cover outer plate is fixedly connected with the front end of the engine cover inner plate.

[0013] The engine cover inner plate and the engine cover outer plate form an engine cover.

[0014] When the engine cover is closed, the sealing strip part of the sealing strip body is arranged in a structure capable of being pressed and fitted to the sealing surface crossbeam decorative plate and the front bumper.

[0015] The technical scheme of the utility model has the following working principles and beneficial effects:

[0016] The utility model discloses a front sealing strip structure of automobile engine cover sets up the sealing strip body of strip, and the sealing strip body includes the connecting body part, the sealing strip part, and the connecting body part and the sealing strip part are integral type structure, and the sealing strip body is the structure of rubber material, and the recess weakening point is set to the lower surface of connecting body part when making, and the recess weakening point is the long groove structure, when the sealing strip body is not installed to the lower surface position of engine cover inner panel, the connecting body part is not subjected to external force, and the whole basically presents the plane structure, and when the sealing strip body is installed to the lower surface position of engine cover inner panel, because the engine cover inner panel is the bending structure, then is subjected to the structure of engine cover inner panel, and the connecting body part is because the recess weakening point exists, and then presents the bending V character structure, and the recess weakening point effectively eliminates the stress of the connecting body part because of the bending of installation, and the sealing strip body is not easy to collapse, and the connecting body part is well bonded with the end of engine cover inner panel, and the sealing strip part of sealing strip body is reliably bonded with the sealing surface crossbeam decorative plate and front bumper part when the engine cover is closed, and the front end of connecting body part can also be reliably bonded in the lower position of engine cover inner panel, and the sealing of engine cover is reliably realized. The force relief gap is set in the rear end position of connecting body part, and the force relief gap presents V character structure. When the sealing strip body is installed in the engine cover inner panel, the whole presents the arc structure, so that the sealing strip body is in the extrusion state, and there is stress, and the sealing performance is influenced. Therefore, through the force relief gap, after the sealing strip body is installed in place, the stress is effectively unloaded, and the connecting body part of sealing strip body is well bonded with the engine cover inner panel, and the sealing strip part of sealing strip body is reliably bonded with the sealing surface crossbeam decorative plate and front bumper part when the engine cover is closed, and the front end of connecting body part can also be reliably bonded in the lower position of engine cover inner panel, and the sealing of engine cover is reliably realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] The following is a brief description of the content expressed by each drawing of the present specification and the marks in the drawings:

[0018] Figure 1 It is the structure schematic diagram of the front sealing strip structure of automobile engine cover of the utility model;

[0019] Figure 2 It is the structure schematic diagram of the front sealing strip structure of automobile engine cover of the utility model;

[0020] The marks in the drawings are respectively: 1, the sealing strip part; 2, the sealing convex part; 3, the buckle; 4, the recess weakening point; 5, the engine cover outer plate; 6, the engine cover inner panel; 7, the sealing surface crossbeam decorative plate; 8, the front bumper; 9, the sealing strip body; 10, the connecting body part; 11, the force relief gap. DETAILED DESCRIPTION

[0021] The shape, structure, mutual position and connecting relationship between parts, the function and working principle of each part of the specific embodiments of the present application will be further described in detail below with reference to the drawings and the description of the embodiments.

[0022] As shown in the accompanying Figure 1 -attached Figure 2 The utility model discloses a kind of front sealing strip structures of automobile engine cover, sealing strip body 9 includes connecting body part 10, sealing strip part 1, recess weakening point 4 is provided on connecting body part 10, connecting body part 10 is connected in the lower surface position of engine cover inner plate 6, sealing surface crossbeam decorative plate 7 is located below the position of engine cover inner plate 6.The above structure, for the deficiency in the prior art, improved technical solution is proposed.Structure is set, set long strip sealing strip body 9, sealing strip body 9 includes connecting body part 10, sealing strip part 1, connecting body part 10 and sealing strip part 1 are integrated structure, sealing strip body 9 is the structure made of rubber material, recess weakening point 4 is set in the lower surface of connecting body part 10 when manufacturing, recess weakening point 4 is long groove structure.When sealing strip body 9 is not installed to the lower surface position of engine cover inner plate, connecting body part 10 is not subjected to external force, and the whole is basically plane structure, and when sealing strip body 9 is installed to the lower surface position of engine cover inner plate, because engine cover inner plate 6 is the bending structure, then be subjected to the structure of engine cover inner plate 6, connecting body part 10 because the existence of recess weakening point 4, then present bending V-shaped structure, recess weakening point 4 effectively eliminates the stress generated because of the bending of connecting body part 10 when installation, ensure that sealing strip body 9 is not easy to collapse, ensure that connecting body part 10 and engine cover inner plate 6 end portion are well fitted, avoid wrinkle, improve sealing when engine cover is closed.Sealing surface crossbeam decorative plate 7 is located below the position of engine cover inner plate 6, when engine cover is closed, sealing strip part 1 of sealing strip body 9 is extruded, and reliably fits sealing surface crossbeam decorative plate 7 and front bumper 8 portion, and the front end of connecting body part 10 can also be reliably fitted in the position below engine cover inner plate 6, reliably realize the sealing of engine cover.The front sealing strip structure of automobile engine cover described in the utility model, simple structure, when engine cover is closed, ensure that sealing strip body deforms in place, realize reliable sealing of engine cover portion, avoid wrinkle.

[0023] The sealing strip body 9 is long strip structure, recess weakening point 4 is long groove structure, and recess weakening point 4 extends from one end of sealing strip body 9 to the other end.The above structure, along the extension direction of sealing strip body, each part can reliably eliminate stress, and ensure that it is not easy to collapse.

[0024] The front bumper 8 is arranged below the sealing surface cross beam decorative plate 7. The connecting body part 10 is fixedly connected in the mounting hole of the engine cover inner plate 6 through the plurality of buckles 3 extending from one end to the other end of the connecting body part 10. The above structure facilitates the connection of the connecting body part 10 and the engine cover inner plate 6 through the buckles arranged with gaps.

[0025] The protruding sealing protruding part 2 is arranged at the front end of the connecting body part 10. After the sealing strip body 9 is mounted to the lower surface of the engine cover inner plate, the sealing protruding part 2 reliably adheres to the engine cover inner plate, effectively ensures good adhesion to the engine cover inner plate, and improves the sealing performance.

[0026] The force relieving gap 11 is arranged at the rear end of the connecting body part 10. When the sealing strip body is mounted to the engine cover inner plate, the whole is in an arc-shaped structure, which makes the sealing strip body in a squeezed state and has stress, affecting the sealing performance. Therefore, the force relieving gap 11 effectively relieves the stress after the sealing strip body is mounted in place, ensures that the connecting body part of the sealing strip body is well adhered to the engine cover inner plate 6, and avoids the occurrence of wrinkles.

[0027] The engine cover outer plate 5 is arranged above the engine cover inner plate 6, and the front end of the engine cover outer plate 5 is fixedly connected to the front end of the engine cover inner plate 6. The engine cover inner plate 6 and the engine cover outer plate 5 form an engine cover. The front end of the engine cover outer plate 5 is provided with a bending part, which is clamped to the front end of the engine cover inner plate 6 to reliably connect the two.

[0028] When the engine cover is closed, the sealing strip part 1 of the sealing strip body 9 is arranged to be capable of being squeezed and adhered to the sealing surface cross beam decorative plate 7 and the front bumper 8. The above structure reliably realizes the sealing of the engine cover through the arrangement of the sealing strip body, and meets the actual needs of the vehicle.

[0029] The utility model discloses a front sealing strip structure of automobile engine cover, and sealing strip body 9 includes connecting body part 10, sealing strip part 1, and connecting body part 10 and sealing strip part 1 are integral type structure, and sealing strip body 9 is the structure made of rubber material, and when making, recess weakening point 4 is arranged on the lower surface of connecting body part 10, and recess weakening point 4 is long groove structure. When sealing strip body 9 is not installed to the lower surface position of engine cover inner panel, connecting body part 10 is not subjected to external force, and the whole basically presents plane structure, and when sealing strip body 9 is installed to the lower surface position of engine cover inner panel, because engine cover inner panel 6 is the bending structure, then is subjected to the structure of engine cover inner panel 6, and connecting body part 10 presents the bending V-shaped structure because of the existence of recess weakening point 4, and recess weakening point 4 effectively eliminates the stress of connecting body part 10 because of the bending when installing, ensures that sealing strip body 9 is not easy to collapse, ensures that connecting body part 10 and engine cover inner panel 6 end portion fit well, avoids the cocking wrinkle, and improves the sealing property when engine cover is closed. Sealing surface crossbeam decorative plate 7 is located the position below engine cover inner panel 6, and when engine cover is closed, sealing strip part 1 of sealing strip body 9 is extruded, and reliably fits sealing surface crossbeam decorative plate 7 and front bumper 8 part, and the front end of connecting body part 10 can also reliably fit the position below engine cover inner panel 6, and reliably realize the sealing of engine cover. Force relief gap 11 is arranged at the rear end position of connecting body part 10, and force relief gap 11 presents V-shaped structure. When sealing strip body is installed in engine cover inner panel, the whole presents arc structure, so that sealing strip body is in extrusion state, and there is stress, and the sealing performance is influenced. For this, through force relief gap 11, after sealing strip body is installed in place, the stress is unloaded, guarantees that the connecting body part of sealing strip body and engine cover inner panel 6 fit well, and avoids the cocking wrinkle.

[0030] The utility model has been described exemplarily above in connection with the drawings, and obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various improvements are made by adopting the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model is directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A structure of a front seal strip for an automobile engine hood, characterized by: The sealing strip body (9) comprises a connecting body part (10) and a sealing strip part (1), the connecting body part (10) is provided with a groove weakening point (4), the connecting body part (10) is connected to the lower surface of the engine cover inner plate (6), and the sealing surface cross beam decorative plate (7) is located below the engine cover inner plate (6).

2. The front weatherstrip structure for an automobile hood according to claim 1, characterized by: The sealing strip body (9) is in a long strip structure, the groove weakening point (4) is in a long groove structure, and the groove weakening point (4) extends from one end of the sealing strip body (9) to the other end.

3. The front weatherstrip structure for an automobile hood according to claim 1 or 2, characterized in that: The front bumper (8) is arranged below the sealing surface cross beam decorative plate (7).

4. The front weatherstrip structure for an automobile hood according to claim 1 or 2, characterized by: The connecting body part (10) is fixedly connected to the mounting hole of the engine cover inner plate (6) through a plurality of buckles (3), and the plurality of buckles (3) extend from one end of the connecting body part (10) to the other end.

5. The front weatherstrip structure for an automobile hood according to claim 1 or 2, characterized by: The protruding sealing protruding part (2) is arranged at the front end of the connecting body part (10).

6. The automotive hood front weatherstrip structure of claim 1, wherein: The connecting body part (10) of the sealing strip body (9) is provided with a force relieving gap (11).

7. The automotive hood front weatherstrip structure of claim 1, wherein: The engine cover outer plate (5) is arranged above the engine cover inner plate (6), and the front end of the engine cover outer plate (5) is fixedly connected to the front end of the engine cover inner plate (6).

8. The automotive hood front weatherstrip structure of claim 1, wherein: The engine cover inner plate (6) and the engine cover outer plate (5) form an engine cover.

9. The automotive hood front weatherstrip structure of claim 1, wherein: When the engine cover is closed, the sealing strip part (1) of the sealing strip body (9) is arranged in a structure capable of being pressed and fitted to the sealing surface cross beam decorative plate (7) and the front bumper (8).

Citation Information

Patent Citations

  • Automobile engine compartment sealing structure

    CN210437268U