Turnover cover plate structure of automobile tail threshold

Abstract

The embodiment of the utility model provides a turnover cover plate structure of an automobile tail threshold. The turnover cover plate structure comprises a cover plate body and a torsional spring. One end of the cover plate body in the width direction is hinged with a tail threshold body of the automobile through a rotating shaft, and the other end is a free end, so that the cover plate body can overturn back and forth relative to the tail threshold body; the two torsional springs are symmetrically arranged in the length direction of the cover plate body and arranged on the rotating shaft in a sleeving mode. A first torsion arm of the torsion spring is connected with the tail threshold body, a back door plate of the automobile abuts against the front face of the free end of the cover plate body when closed, and a second torsion arm of the torsion spring is bent, extends to the back face of the free end of the cover plate body and is connected with the free end of the cover plate body. The acting force position of the rebounding of the torsion spring is close to or coincides with the pressing force position borne by the cover plate body in the open state, so that the cover plate body does not bear the action of a force arm any more, and the stress deformation problem of the cover plate body is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field, concretely relates to a turnover cover plate structure of automobile tail gate sill. BACKGROUND

[0002] The conventional back door lock catch is generally installed at the middle position of the tail gate sill, when the back door is closed, the free end of the turnover cover plate is pressed by the back door plate, so that the turnover cover plate is in the open state, when the back door is opened, the turnover cover plate is closed under the action of the torsional spring, so as to shield the lock catch and improve the appearance of the vehicle body.

[0003] Under normal circumstances, the back door is in the closed state for a long time, and the turnover cover plate is pressed by the back door plate for a long time, because the pressing force in the open state of the turnover cover plate is applied to the free end of the cover plate, and the force of the torsional spring in the prior art is applied to the position close to the hinge end of the cover plate as shown in the figure, so that the turnover cover plate bears the force arm for a long time, which causes the middle position of the turnover cover plate to be easily deformed seriously. Figure 1 Content of the utility model

[0004] Therefore, the embodiments of the utility model provide a turnover cover plate structure of an automobile tail gate sill to solve the technical problem that the turnover cover plate in the prior art is easily deformed seriously due to bearing the force arm for a long time.

[0005] The utility model discloses an automobile tail gate sill's turnover cover plate structure, including the cover plate body and torsional spring, one end of the cover plate body width direction is hinged with the tail gate sill body of automobile through the pivot, and the other end of the cover plate body width direction is the free end, so that the cover plate body can reciprocatingly overturn relative to the tail gate sill body;

[0006] Two torsional springs are arranged symmetrically along the length direction of the cover plate body, and the two torsional springs are sleeved on the pivot, the first torsional arm of the torsional spring is connected with the tail gate sill body, the second torsional arm of the torsional spring is bent and extends to the back of the free end of the cover plate body and is connected with the free end of the cover plate body, and the back door plate of the automobile is pressed on the front of the free end of the cover plate body when the back door is closed.

[0007] Optionally, the second torsional arm of the torsional spring comprises a first bending section, a second bending section and a third bending section connected in sequence, the first bending section extends along the width direction of the cover plate body, the second bending section extends along the length direction of the cover plate body, the third bending section extends relative to the second bending section towards the direction close to the cover plate body, and the end of the third bending section is connected with the free end of the cover plate body.

[0008] ​Optionally, a reinforcing rib is arranged on the back surface of the cover plate body, and the end of the third bending section abuts against the reinforcing rib.

[0009] Optionally, a first fixing block is arranged on the tail gate sill body and close to the rotating shaft, and a groove is arranged on the first fixing block and used for embedding the first torsion arm of the torsion spring.

[0010] Optionally, a second fixing block is arranged on the back surface of the cover plate body and close to the rotating shaft, and a groove is arranged on the second fixing block and used for embedding the second torsion arm of the torsion spring.

[0011] The embodiment of the utility model has the following beneficial effects: the torsion arm of the torsion spring is bent and extended to the free end of the cover plate body, so that the position of the action force of the torsion spring rebounding is close to or coincides with the position of the pressure bearing of the cover plate body in the open state, thereby the cover plate body no longer bears the action of the force arm, and the stress deformation problem of the cover plate body is effectively eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the person skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0013] Figure 1 It is a force schematic diagram of the existing technology of the turnover cover plate;

[0014] Figure 2 It is a whole structure schematic diagram of the embodiment of the utility model;

[0015] Figure 3 It is a structure schematic diagram of the cover plate body and the torsion spring in the embodiment of the utility model;

[0016] Figure 4 It is a force schematic diagram of the cover plate body in the embodiment of the utility model;

[0017] The figure number indicates:

[0018] 1, cover plate body;11, reinforcing rib;12, second fixing block;2, torsion spring;21, first torsion arm;22, second torsion arm;221, first bending section;222, second bending section;223, third bending section;3, rotating shaft;4, tail gate sill body;41, first fixing block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application. In addition, it should be understood that the specific implementation described herein is only used to illustrate and explain the present application, and is not used to limit the present application. In the present application, the terms "first", "second", "third" and the like are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0020] Please refer to Figure 2 The embodiment of the present application provides a turnover cover plate structure of a tail gate sill of an automobile, which comprises a cover plate body 1 and a torsion spring 2. One end of the cover plate body 1 in the width direction is hinged to a tail gate sill body 4 of the automobile through a rotating shaft 3, and the other end of the cover plate body 1 in the width direction is a free end, so that the cover plate body 1 can reciprocally turn relative to the tail gate sill body 4 to reciprocally switch between an open state (when the back door of the automobile is closed) and a closed state (when the back door of the automobile is opened).

[0021] The two torsion springs 2 are symmetrically arranged along the length direction of the cover plate body 1, and both of the two torsion springs 2 are sleeved on the rotating shaft 3. A first torsion arm 21 of the torsion spring 2 is connected with the tail gate sill body 4, and a second torsion arm 22 is connected with the cover plate body 1, so as to apply an elastic force to the cover plate body 1 to make the cover plate body 1 close. Since the back door plate of the automobile usually abuts against the front surface (i.e. the appearance visible surface) of the free end of the cover plate body 1 when the back door is closed, the second torsion arm 22 of the torsion spring 2 is bent and extended to the back surface (i.e. the appearance invisible surface) of the free end of the cover plate body 1 and connected with the free end of the cover plate body 1 in the embodiment of the present application, so that the position of the elastic force of the torsion spring 2 can be changed to be close to or coincide with the abutting position of the cover plate body 1 in the open state, as shown in Figure 4 The cover plate body 1 does not need to bear the effect of the force arm any more, so that the stress deformation problem of the cover plate body 1 is eliminated.

[0022] Specifically, as Figure 3As shown, the second torsion arm 22 of the torsion spring 2 in the embodiment of the utility model comprises a first bending section 221, a second bending section 222 and a third bending section 223 connected in turn. Among them, the first bending section 221 extends along the width direction of the cover plate body 1, the second bending section 222 extends along the length direction of the cover plate body 1, and the third bending section 223 extends relative to the second bending section 222 towards the direction close to the cover plate body 1, and the end of the third bending section 223 is connected with the free end of the cover plate body 1. Such bending structure can meet the deformation requirement of the second torsion arm 22 rebounding with less bending path.

[0023] Further, the reinforcing rib 11 can be arranged on the back of the cover plate body 1 to enhance the overall strength of the cover plate body 1, and the end of the third bending section 223 can directly abut against the reinforcing rib 11.

[0024] In addition, in order to limit the torsion spring 2, the first fixed block 41 is arranged on the tail gate sill body 4 close to the rotating shaft 3, the second fixed block 12 is arranged on the back of the cover plate body 1 close to the rotating shaft 3, the recess for embedding the first torsion arm 21 of the torsion spring 2 is arranged on the first fixed block 41, and the recess for embedding the second torsion arm 22 of the torsion spring 2 is arranged on the second fixed block 12. The first fixed block 41 and the second fixed block 12 can effectively limit the torsion spring 2, avoiding the displacement of the torsion spring 2 in the length direction of the cover plate body 1.

[0025] In this paper, the principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used to help understand the technical scheme and core idea of the utility model; the person skilled in the art should understand that the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the utility model.

Claims

1. A flip-up cover structure for a car rear sill, characterized in that: The cover plate body is hinged to the tail gate sill body of the automobile through a rotating shaft at one end in the width direction, and the other end in the width direction is a free end, so that the cover plate body can be flipped reciprocally relative to the tail gate sill body; The two torsion springs are symmetrically arranged along the length direction of the cover plate body, and both of the torsion springs are sleeved on the rotating shaft; the first torsion arm of the torsion spring is connected with the tail gate sill body, the second torsion arm of the torsion spring is bent and extended to the back surface of the free end of the cover plate body and connected with the free end of the cover plate body, and the back door plate of the automobile is pressed against the front surface of the free end of the cover plate body when the back door plate is closed.

2. The flip cover structure of a tailgate sill of an automobile according to claim 1, characterized in that: The second torsion arm of the torsion spring comprises a first bent section, a second bent section and a third bent section which are sequentially connected; the first bent section extends along the width direction of the cover plate body, the second bent section extends along the length direction of the cover plate body, and the third bent section extends relative to the second bent section towards the direction close to the cover plate body, and the end of the third bent section is connected with the free end of the cover plate body.

3. The flip cover structure of a tailgate sill of a vehicle according to claim 2, characterized in that: The back surface of the cover plate body is provided with a reinforcing rib, and the end of the third bent section abuts against the reinforcing rib.

4. The flip cover structure of a tailgate sill of a vehicle according to claim 1, characterized in that: The first fixed block is arranged on the tail gate sill body close to the rotating shaft, and a groove is formed in the first fixed block for embedding the first torsion arm of the torsion spring.

5. The flip cover structure of a tailgate sill of a vehicle according to claim 1, characterized in that: The second fixed block is arranged on the back surface of the cover plate body close to the rotating shaft, and a groove is formed in the second fixed block for embedding the second torsion arm of the torsion spring.

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