A buckle type engine lower guard mounting structure, method and automobile

Abstract

The application belongs to the technical field of automobile structure accessories, and particularly relates to a buckle type engine lower guard plate mounting structure, method and automobile. The structure comprises an engine lower guard plate, a subframe, a front bumper and an automobile side beam. The front side of the engine lower guard plate is fixed on the front bumper through a round buckle, and the two sides and the rear side of the engine lower guard plate are fixed on the side beams on the two sides of the automobile and the subframe through C-shaped buckles. The lower end of the round buckle is circumferentially provided with a reverse buckle. Corresponding positions on the engine lower guard plate and the front bumper are respectively provided with clamping holes for accommodating the round buckle. The fixing of the engine lower guard plate is realized by clamping the reverse buckle at the lower end of the round buckle on the front bumper. The mounting structure can avoid structure loosening caused by repeated disassembly, and does not need to open a special maintenance hole position. The engine lower guard plate can be quickly pulled out during maintenance.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile structural accessories, and in particular relates to a snap-on engine lower guard plate mounting structure, a method and an automobile. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] As automotive operating environments become increasingly complex, the need for engine compartment protection is growing. Consequently, new vehicle models are equipped with under-engine guards to protect the underside of the powertrain and improve chassis smoothness. However, these guards can make maintenance difficult, and repeated removal can also lead to instability. To ensure repairability, some OEMs have implemented small covers on the under-engine guards, which are costly and unreliable.

[0004] Current automotive under-engine guards utilize a bolt-and-clip assembly process, resulting in complex assembly and after-sales repairs. This can lead to the guard becoming unstable after repeated disassembly. Some manufacturers also create larger holes for the oil filter to access the engine / transmission drain plug, significantly reducing aesthetics and protective functionality. Summary of the Invention

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a snap-on engine underbody mounting structure, method and automobile.

[0006] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions:

[0007] A first aspect of the present invention provides a snap-on engine underguard mounting structure, comprising: an engine underguard, a subframe, a front bumper, and a vehicle side member;

[0008] The front side of the engine under guard plate is fixed to the front bumper through a round buckle, and the two sides and the rear side of the engine under guard plate are fixed to the side beams and the subframe on both sides of the car through C-shaped buckles;

[0009] The circular buckle comprises a pull ring, a cover and a cylindrical body. A through hole is provided in the middle of the cover, a pull ring is provided at one end of the cylindrical body, and the cover is sleeved on the end of the cylindrical body with the pull ring; an undercut is provided circumferentially at the other end of the cylindrical body.

[0010] The engine lower guard plate and the corresponding positions on the front bumper are respectively provided with snap holes for accommodating round clips, and the engine lower guard plate is fixed by snapping the underside of the round clip to the front bumper.

[0011] Optionally, a shrinkage hole is provided on the cylindrical body, and the shrinkage hole extends along the axial direction of the cylindrical body to the upper end and the lower end of the cylindrical body. By providing the shrinkage hole, the undercut shrinks inward when the pull ring is pulled.

[0012] Optionally, during the removal of the engine under guard plate, the pull ring is pulled, and the cylindrical body contracts inward under the action of the pull ring, so that the diameter of the undercut becomes smaller and is not enough to clamp the front bumper, so that the round clip can be pulled out of the clamping hole.

[0013] Optionally, the cylindrical body includes an outer cylinder and an inner cylinder, the upper end of the inner cylinder is connected to the upper end of the outer cylinder, the circular buckle pull ring is provided at the upper end of the inner cylinder, and the shrinkage hole is provided on the outer cylinder;

[0014] A connecting portion is provided between the outer cylinder and the inner cylinder. When the circular buckle pull ring is pulled, the inner cylinder drives the outer cylinder to contract inwardly through the connecting portion.

[0015] Optionally, the connecting portion includes a first connecting buckle circumferentially arranged on the inner wall of the outer cylinder and a second connecting buckle circumferentially arranged on the outer wall of the inner cylinder, and the first connecting buckle is snap-connected with the second connecting buckle.

[0016] Optionally, the subframe and the side beams on both sides of the vehicle are respectively provided with C-shaped buckles;

[0017] During the installation of the engine under guard, insert the rear side of the engine under guard into the C-shaped buckle on the side beams on both sides of the vehicle, and then push the engine under guard until the rear side of the engine under guard is pushed into the C-shaped buckle on the subframe.

[0018] Optionally, the number of C-shaped clips provided on the subframe is 4, and the number of C-shaped clips provided on the side beams on both sides of the vehicle is 2.

[0019] A second aspect of the present invention provides a method for installing a clip-on engine lower guard plate, based on the clip-on engine lower guard plate installation structure provided by the first aspect of the present invention, comprising:

[0020] During the installation of the engine under guard, first insert the rear side of the engine under guard into the C-shaped buckles on the side beams on both sides of the vehicle, and then push the engine under guard until the rear side of the engine under guard is pushed into the C-shaped buckles on the subframe;

[0021] Then, insert the end of the round clip with the undercut into the upper side of the engine lower guard plate and the clipping holes on the front bumper in turn, and use the undercut to clamp the front bumper to fix the engine lower guard plate.

[0022] Optionally, during the removal of the engine under guard plate, by pulling the pull ring on the round buckle, the cylindrical body contracts inward under the action of the pull ring, so that the diameter of the undercut becomes smaller and is not sufficient to clamp the front bumper, thereby achieving the pulling out of the round buckle from the clamping hole;

[0023] Then, pull out the engine lower guard plate in the opposite direction of the installation direction to complete the removal of the engine lower guard plate.

[0024] A third aspect of the present invention provides an automobile, comprising the snap-on engine underbody mounting structure provided by the first aspect of the present invention.

[0025] One or more of the above technical solutions have the following beneficial effects:

[0026] (1) In the present invention, the rear, left and right directions of the engine lower guard plate are fixed using special C-shaped clips, and the front is fixed using a rotating circular clip. When the lower guard plate needs to be removed, the rear rotating clip is loosened and the engine lower guard plate can be directly pulled out from the back to the front; the structure is reliable, the disassembly is simple and the cost is low.

[0027] (2) The installation structure proposed by the present invention can avoid the loosening of the structure caused by repeated disassembly, and there is no need to open a special maintenance hole. During maintenance, the engine lower guard plate can be quickly pulled out, which greatly reduces the difficulty of automobile repair and maintenance.

[0028] Advantages of additional aspects of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0030] Figure 1 This is a business diagram of a snap-on engine lower guard plate installation structure according to Example 1.

[0031] Figure 2 This is a schematic structural diagram of the circular buckle of Example 1.

[0032] Figure 3 This is a structural cross-sectional view of the circular buckle of Example 1.

[0033] Figure 4 This is a schematic structural diagram of the C-shaped buckle of Example 1.

[0034] In the figure, 1. C-shaped buckle, 2. round buckle, 201 pull ring, 202 cover body, 203 cylindrical body, 2031 outer cylinder, 2032 first connecting buckle, 2033 second connecting buckle, 2034 inner cylinder, 204 shrinkage hole, 205 inverted buckle, 3. engine lower guard plate, 4. side beam, 5. subframe, 6. front bumper. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] Example 1

[0037] like Figure 1 As shown, the present invention proposes a snap-on engine lower guard plate mounting structure, comprising: an engine lower guard plate, a subframe, a front bumper, and a vehicle side beam;

[0038] The front side of the engine underguard is fixed to the front bumper via round buckles, and the sides and rear side of the engine underguard are fixed to the side beams and subframes on both sides of the car via C-shaped buckles;

[0039] There is an inverted buckle on the circumference of the lower end of the circular clip, and corresponding positions on the engine lower guard plate and the front bumper are respectively provided with snap-in holes for accommodating the circular buckle. The engine lower guard plate is fixed by clamping the inverted buckle at the lower end of the circular clip to the front bumper.

[0040] like Figure 2 As shown, the circular buckle includes a pull ring 201, a cover 202 and a cylindrical body 203. The upper end of the cylindrical body 203 is provided with a pull ring, the middle part of the cover 202 is provided with a through hole, and the cover 202 is sleeved on the end of the cylindrical body 203 with the pull ring 201.

[0041] The lower end of the cylindrical body 203 is circumferentially provided with an undercut 205 that can engage the front bumper. The cylindrical body 203 is provided with a contraction hole 204 that extends axially to the upper and lower ends of the cylindrical body 203. The contraction hole 204 allows the undercut 205 to contract inward when the pull ring is pulled.

[0042] The circular snap pull ring 201 is set at one end of the cylindrical main body 203, and the circular snap pull ring 201 has a flexible connection in the inner circle of the cylindrical main body 203. When removing the snap, use the surface of the finger cover 202. When you use your fingers or a screwdriver to pull the pull ring, the cylindrical main body 203 will shrink inward under the action of the circular snap pull ring, and the diameter of the undercut will become smaller, losing its fixing function. At this time, the entire snap can be directly pulled out.

[0043] like Figure 3As shown, the cylindrical body 203 includes an outer cylinder 2031 and an inner cylinder 2034. The size of the inner cylinder 2034 is smaller than that of the outer cylinder 2031, and the upper end of the inner cylinder 2034 is connected to the upper end of the outer cylinder 2031. The circular snap ring 201 is set at the upper end of the inner cylinder 2034, and the shrinkage hole 204 is opened on the outer cylinder 2031.

[0044] A connecting portion is provided between the outer cylinder 2031 and the inner cylinder 2034, and the connecting portion is arranged at the lower end of the cylinder. The connecting portion includes a first connecting buckle 2032 circumferentially arranged on the inner wall of the outer cylinder 2031 and a second connecting buckle 2033 circumferentially arranged on the outer wall of the inner cylinder 2034. The first connecting buckle 2032 is snap-connected with the second connecting buckle 2033.

[0045] The circular buckle pull ring 201 is set on the inner cylinder 2034. When the circular buckle pull ring 201 is pulled, the inner cylinder 2034 contracts and drives the outer cylinder 2031 to contract, so that the undercut 205 on the outer wall of the outer cylinder 2031 contracts inward.

[0046] During the removal of the engine underguard 3, the pull ring 201 is pulled, causing the cylindrical body 203 to contract inwardly under the action of the pull ring 201, reducing the diameter of the circle around the undercut 205 to a point where it is no longer sufficient to engage the front bumper, thereby allowing the circular clip 2 to be pulled out of the engaging hole. The number of circular clips can be set as needed; in this embodiment, two are provided.

[0047] like Figure 4 As shown, C-shaped buckles 1 are provided on the subframe and the side beams on both sides of the car;

[0048] During the installation of the engine under guard, insert the rear side of the engine under guard 3 into the C-shaped buckle on the side beams on both sides of the car, and then push the engine under guard 3 until the rear side of the engine under guard 3 is pushed into the C-shaped buckle on the subframe to complete the installation of the engine under guard. The installation direction of the engine under guard is as follows: Figure 1 As shown by the arrow in .

[0049] The material of the C-shaped clip is metal, and the number of C-shaped clips can be set according to needs. In this embodiment, the number of C-shaped clips on the subframe is 4, and the number of C-shaped clips on the side beams on both sides of the car is 2, so as to enhance the fixing effect of the engine lower guard plate.

[0050] In this embodiment, the engine lower guard plate is fixed to the vehicle by 7 special metal C-shaped clip structures and 2 special detachable round clips; the rear 3 C-shaped clips are welded to the subframe to limit the freedom of the guard plate to move backward.

[0051] Four special metal C-shaped clip structures are welded to the small side beams on both sides of the car, with two on the left and right sides respectively, which are used to limit the freedom of the guard plate in the left and right directions; two special detachable round clips are used to limit the forward freedom of the engine under guard plate; at this time, all directions are fixed and the engine under guard plate is firmly fixed.

[0052] Example 2

[0053] The present invention provides a snap-on engine lower guard plate installation method, based on the snap-on engine lower guard plate installation structure of embodiment 1, comprising:

[0054] During the installation of the engine under guard, first insert the rear side of the engine under guard into the C-shaped buckles on the side beams on both sides of the vehicle, and then push the engine under guard until the rear side of the engine under guard is pushed into the C-shaped buckles on the subframe;

[0055] Then, insert the end of the round clip with the undercut into the upper side of the engine lower guard plate and the clipping holes on the front bumper in turn, and use the undercut to clamp the front bumper to fix the engine lower guard plate.

[0056] Specifically: When installing the lower guard from the installation direction, when the lower guard plate's clip fixing points reach the C-shaped clips on both sides of the guard plate, the C-shaped clips will secure the lower guard plate on both sides. Continue to push the lower guard plate until it is pushed into the C-shaped clips on the subframe, securing the lower guard plate. At this point, the lower guard plate is basically stable, and the final fixation is performed. Use two specially designed removable round clips to directly manually assemble them into the openings on the lower guard plate and bumper. Use the reverse buckle of the clip to lock the front bumper, and the lower guard plate is completely fixed.

[0057] During the removal of the engine under guard plate, first pull the pull ring on the round clip. Under the action of tension, the undercut at the lower end of the round clip will shrink, that is, the circumferential diameter of the undercut will become smaller. At this time, the clip no longer plays a fixing role and cannot clamp the front bumper. The clip can be directly removed from the clamping hole through the mounting holes of the front bumper and the engine under guard plate.

[0058] Then, the engine lower guard plate is pulled out in the opposite direction of the installation direction to carry out repair or maintenance on the lower part of the powertrain; during the entire assembly or disassembly process, no complicated tools are used and the time taken is short, and the purpose of assembling and disassembling the lower guard plate can be achieved.

[0059] Example 3

[0060] The present invention provides an automobile, comprising the snap-on engine underguard mounting structure of the first embodiment.

[0061] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without any creative work are still within the scope of protection of the present invention.

Claims

1. A snap-on engine lower guard plate mounting structure, characterized in that: include: Engine under guard, subframe, front bumper and vehicle side beam; The front side of the engine under guard plate is fixed to the front bumper through a round buckle, and the two sides and the rear side of the engine under guard plate are fixed to the side beams and the subframe on both sides of the car through C-shaped buckles; The circular buckle comprises a pull ring, a cover and a cylindrical body. A through hole is provided in the middle of the cover, a pull ring is provided at one end of the cylindrical body, and the cover is sleeved on the end of the cylindrical body with the pull ring; an undercut is provided circumferentially at the other end of the cylindrical body. The engine lower guard plate and the corresponding positions on the front bumper are respectively provided with snap holes for accommodating round clips, and the engine lower guard plate is fixed by snapping the underside of the round clip to the front bumper.

2. The snap-on engine lower guard plate mounting structure according to claim 1, characterized in that: The cylindrical body is provided with a shrinkage hole, which extends along the axial direction of the cylindrical body to the upper end and the lower end of the cylindrical body. The shrinkage hole is provided so that the undercut shrinks inward when the pull ring is pulled.

3. The snap-on engine lower guard plate mounting structure according to claim 2, characterized in that: During the removal of the engine underguard, the pull ring is pulled, and the cylindrical body contracts inward under the action of the pull ring, so that the diameter of the undercut becomes smaller and is not enough to clamp the front bumper, so that the round clip can be pulled out of the clamping hole.

4. The snap-on engine lower guard plate mounting structure according to claim 2, characterized in that: The cylindrical body comprises an outer cylinder and an inner cylinder, the upper end of the inner cylinder is connected to the upper end of the outer cylinder, the circular buckle pull ring is arranged at the upper end of the inner cylinder, and the shrinkage hole is opened on the outer cylinder; A connecting portion is provided between the outer cylinder and the inner cylinder. When the circular buckle pull ring is pulled, the inner cylinder drives the outer cylinder to contract inwardly through the connecting portion.

5. The snap-on engine lower guard plate mounting structure according to claim 4, characterized in that: The connecting portion includes a first connecting buckle circumferentially arranged on the inner wall of the outer cylinder and a second connecting buckle circumferentially arranged on the outer wall of the inner cylinder, and the first connecting buckle is snap-connected with the second connecting buckle.

6. The snap-on engine lower guard plate mounting structure according to claim 1, characterized in that: The subframe and the side beams on both sides of the car are respectively provided with C-shaped buckles; During the installation of the engine under guard, insert the rear side of the engine under guard into the C-shaped buckle on the side beams on both sides of the vehicle, and then push the engine under guard until the rear side of the engine under guard is pushed into the C-shaped buckle on the subframe.

7. The snap-on engine lower guard plate mounting structure according to claim 6, characterized in that: The number of C-shaped clips arranged on the auxiliary frame is 4, and the number of C-shaped clips arranged on the side beams on both sides of the vehicle is 2.

8. A snap-on engine lower guard plate installation method, characterized in that: The snap-on engine lower guard plate mounting structure according to any one of claims 1 to 7 comprises: During the installation of the engine under guard, first insert the rear side of the engine under guard into the C-shaped buckles on the side beams on both sides of the vehicle, and then push the engine under guard until the rear side of the engine under guard is pushed into the C-shaped buckles on the subframe; Then, insert the end of the round clip with the undercut into the upper side of the engine lower guard plate and the clipping holes on the front bumper in turn, and use the undercut to clamp the front bumper to fix the engine lower guard plate.

9. The method according to claim 8, characterized in that During the removal of the engine lower guard plate, by pulling the pull ring on the round buckle, the cylindrical body contracts inward under the action of the pull ring, so that the diameter of the undercut becomes smaller and is not enough to clamp the front bumper, so that the round buckle can be pulled out of the clamping hole; Then, pull out the engine lower guard plate in the opposite direction of the installation direction to complete the removal of the engine lower guard plate.

10. An automobile, characterized in that: It includes the snap-on engine lower guard plate mounting structure according to any one of claims 1 to 7.

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