Clamping mechanism, sealing strip and automobile

Abstract

A clamping mechanism is arranged on a sealing strip and belongs to the technical field of automobile parts. The interior of the clamping mechanism is hollow, the bottom of the clamping mechanism is connected with the sealing strip body, and a plurality of side columns are arranged on the side wall of the clamping mechanism at certain intervals. The side column gradually protrudes outwards to form a protruding part when extending downwards from the head of the clamping mechanism, retracts towards the hollow position of the clamping mechanism to form a plane parallel to the sealing strip, and continues to extend downwards to the sealing strip body to form the tail end of the side column. The defects that in the prior art, a plastic buckle needs to be installed independently, and clamping is not firm are overcome.

Description

Technical Field

[0001] The present application relates to the field of automobile accessories, and in particular to an automobile clamping mechanism. Background Art

[0002] The sealing strip is a component installed on the sheet metal of the vehicle, which is used to prevent rainwater, mud, dust and other debris from entering the vehicle. In order to ensure the sealing performance, it is usually necessary to set a buckle on the sealing strip to fix it to the inner panel of the vehicle. Chinese utility model patent CN207514040U discloses a conventional sealing strip buckle in the background technology, which mainly includes a buckle body 1, one end of the buckle body 1 is symmetrically provided with two latch teeth 2, and the other end of the buckle body 1 is provided with a fixing plate 3. Among them, the sheet metal of the automobile door is provided with a mounting through hole for the latch teeth 2 to be inserted, the sealing strip is generally a hollow tubular body, and the sealing strip has a limiting through hole connecting the inner and outer sides of the sealing strip. The buckle body 1 inserts the two latch teeth 2 into the mounting through hole, and the buckle body 1 inserts the fixing plate 3 into the limiting through hole of the sealing strip, that is, the sealing strip is fixed to the sheet metal of the automobile door.

[0003] However, the buckles in the prior art are usually made of plastic, which are produced separately by injection molding and then manually installed on the sealing strip with holes. The defects of this design include: 1. The structural design of the buckle is generally simple. After the buckle teeth of the buckle are inserted into the installation through hole of the automobile door sheet metal, the edge of the installation through hole is easy to slide out from the buckle teeth, so that the installation through hole directly abuts against the buckle body. Because the hole diameter of the installation through hole is larger than the width of the buckle body, the buckle fixing the automobile door sealing strip on the automobile door sheet metal will become loose; 2. The traditional automobile buckle is generally provided with a buckle at one end and a buckle at the other end. The card cap is in the form of a cap-shaped retaining edge, which clamps the auto part, and the buckle is used to clamp into the auto sheet metal. However, the card cap and the auto buckle body are usually integrally formed, and the structure of the card cap is fixed. It is difficult to remove the auto part after it is clamped. Therefore, the traditional auto buckle is difficult to remove after being damaged; 3. The weather resistance of plastic is generally weaker than that of rubber. Long-term use is prone to reduce the firmness of the sealing strip due to aging, brittle cracking and damage of the plastic, resulting in abnormal driving noise and sealing failure; 4. Before installation, the traditional buckle needs to drill a hole in the sealing strip body and then perform manual installation, which increases the operating procedures and production costs. Utility Model Content

[0004] The present application designs a novel snap-fit ​​mechanism which is integrally formed with a sealing strip to solve the defects in the prior art such as the buckle needing to be installed separately and the snap-fit ​​being not firm.

[0005] In order to achieve the above purpose, this application adopts the following technical solutions:

[0006] A clamping mechanism, with a hollow interior, the bottom of which is connected to the sealing strip body, and a plurality of side columns arranged at a certain interval on the side wall;

[0007] The side column gradually bulges outwards from the head of the clamping mechanism as it extends downwards until a bulge is formed, and then retracts toward the hollow of the clamping mechanism to form a plane parallel to the sealing strip, and continues to extend downwards to the sealing strip body to form the tail end of the side column.

[0008] Furthermore, the tail end protrudes from the side wall.

[0009] Furthermore, the clamping mechanism is made of elastic material.

[0010] A sealing strip is provided with any one of the above-mentioned clamping mechanisms.

[0011] Furthermore, the clamping mechanism and the sealing strip are integrally formed.

[0012] Furthermore, a sealing ring is also arranged on the plane of the sealing strip body, and the whole presents an annular structure surrounding the clamping mechanism.

[0013] Furthermore, the diameter of the sealing ring is greater than or equal to the direct distance between the two relative protrusions of the clamping mechanism.

[0014] Furthermore, the height of the sealing ring is less than or equal to the plane height of the raised portion.

[0015] A car is provided with any one of the above sealing strips.

[0016] Compared with the prior art, the advantages and positive effects of this application are:

[0017] 1. A new type of snap-on mechanism is designed, which is made of rubber material and a sealing strip, overcoming the defects of traditional plastic snaps that are prone to aging and damage and need to be produced separately and then installed manually.

[0018] 2. When the sealing strip is installed, the clamping mechanism is aligned with the installation through hole of the door sheet metal and enters, which will be deformed due to extrusion. Several side pillars on the side are squeezed into the hollow heart of the clamping mechanism, allowing the clamping mechanism to pass through the through hole smoothly. Subsequently, due to the excellent resilience of the rubber material, the originally squeezed and deformed side pillars release stress and return to their original state, and cooperate with the sealing ring to squeeze the door sheet metal to complete the fixing of the sealing strip.

[0019] 3. The structure of the sealing ring is designed to squeeze the door sheet metal together with the tail end of the clamping mechanism to prevent external impurities such as rainwater and dust from entering the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall diagram of the clamping mechanism, sealing strip and sheet metal proposed in this application.

[0021] Figure 2 This is an overall view from another perspective of the clamping mechanism, sealing strip and sheet metal proposed in this application.

[0022] Figure 3 This is a structural diagram of the clamping mechanism and sealing strip proposed in this application.

[0023] Figure 4 This is a structural diagram from another perspective of the clamping mechanism and sealing strip proposed in this application.

[0024] Legend: 1. Snap-fit ​​mechanism; 11. Inner core; 12. Head; 13. Side column; 131. Raised portion; 132. Tail end; 2. Sheet metal; 3. Sealing strip body; 4. Sealing ring. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the present application is not limited to the specific embodiments of the following disclosure.

[0027] Please refer to the attached figure, which shows a clamping mechanism, which is hollow inside, and the bottom is connected to the sealing strip body, or is integrally formed with the sealing strip. A plurality of side pillars are arranged in a ring at a certain interval on the side wall of the clamping mechanism, and the side pillars gradually bulge outwards when extending downward from the head of the clamping mechanism until a convex portion is formed. When the side pillars reach the convex portion, the maximum convexity is formed, and they retract toward the hollow of the clamping mechanism to form a plane parallel to the sealing strip, but do not retract to the side wall. At this time, a certain convexity is still retained and extends downward to the plane of the sealing strip body to form the tail end of the side pillar.

[0028] Furthermore, a sealing ring is also provided on the plane of the sealing strip body, which presents an annular structure as a whole and surrounds the clamping mechanism. Preferably, the diameter of the sealing ring is ≥ the direct distance between the two relative protrusions of the clamping mechanism. The height of the sealing ring should be ≤ the plane height of the protrusion, and the thickness of the sheet metal and a certain assembly tolerance need to be reserved to ensure that the plane of the protrusion can cooperate with the sealing ring to fix the sealing strip body on the door sheet metal. The design of the sealing ring structure can also prevent external impurities such as rainwater and dust from entering the door.

[0029] Furthermore, the plane of the raised portion abuts against the door sheet metal to fix the sealing strip.

[0030] Furthermore, the clamping mechanism described in the present application is made of elastic material, including rubber, thermoplastic elastomer and other materials with compression rebound effect.

[0031] During installation, the clamping mechanism on the sealing strip body is aligned with the installation through hole of the door sheet metal, and then the head of the clamping mechanism is squeezed to make it enter and deform due to the squeezing. The side pillars squeeze into the hollow center of the clamping mechanism, so that the clamping mechanism passes through the through hole smoothly. Subsequently, due to the excellent resilience of the rubber material, the originally squeezed and deformed side pillars release the stress and return to their original state, and cooperate with the sealing ring to squeeze the door sheet metal to complete the fixing of the sealing strip.

[0032] A sealing strip is provided with the above-mentioned snap-in mechanism; preferably, the snap-in mechanism is integrally formed with the sealing strip body.

[0033] A car is provided with any one of the above sealing strips.

[0034] The above is only a preferred embodiment of the present application and does not constitute any other form of limitation to the present application. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present application without departing from the content of the technical solution of the present application still falls within the protection scope of the technical solution of the present application.

Claims

1. A clamping mechanism, characterized in that: The interior is provided with a hollow core, the bottom of which is connected to the sealing strip body, and a number of side pillars are arranged at a certain interval on the side wall; The side column gradually bulges outwards from the head of the clamping mechanism as it extends downwards until a bulge is formed, and then retracts toward the hollow of the clamping mechanism to form a plane parallel to the sealing strip, and continues to extend downwards to the sealing strip body to form the tail end of the side column.

2. A clamping mechanism according to claim 1, characterized in that: The tail end protrudes from the side wall.

3. A clamping mechanism according to claim 1, characterized in that: The clamping mechanism is made of elastic material.

4. A sealing strip, characterized in that: A clamping mechanism as described in any one of claims 1 to 3 is provided.

5. A sealing strip according to claim 4, characterized in that: The clamping mechanism and the sealing strip are integrally formed.

6. A sealing strip according to claim 4, characterized in that: A sealing ring is also arranged on the plane of the sealing strip body, and the whole presents a ring-shaped structure surrounding the clamping mechanism.

7. A sealing strip according to claim 6, characterized in that: The diameter of the sealing ring is greater than or equal to the direct distance between the two protrusions of the clamping mechanism.

8. A sealing strip according to claim 6, characterized in that: The height of the sealing ring is less than or equal to the plane height of the raised portion.

9. A car, characterized in that: A sealing strip as claimed in any one of claims 4 to 8 is provided.

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