Overturning structure

Abstract

The present disclosure relates to an overturning structure, comprising a support rotatably mounted by means of a hinge assembly. The hinge assembly comprises a hinge, a rotating shaft, and a spring. The rotating shaft is rotatably inserted into and mounted on the hinge, and is fixedly mounted on the support by means of shape fitting to define an axis of rotation of the support. The spring is limited in position by the rotating shaft and mounted thereon, and acts on the hinge and the support so as to undergo torsion when the support rotates relative to the hinge. According to the overturning structure of the present disclosure, the spring is limited in position by the rotating shaft and hung on the support and the hinge, so that the number of hinges used can be reduced to lower costs and achieve more convenient operation.

Description

A turnover structure TECHNICAL FIELD

[0001] The present disclosure relates to a vehicle, and more particularly to a turnover structure. BACKGROUND

[0002] The vehicle model scheme of forming city SUV by pick-up with sunroof is increasingly mature, and the development demand of tailgate baffle is gradually increased, and the cost demand of customers is increasing, and the current baffle hinge mechanism is mostly through shaft design, which leads to high installation precision and high cost. SUMMARY

[0003] In order to solve the problem of high cost in the prior art, the present disclosure provides a turnover structure.

[0004] The turnover structure according to the present disclosure comprises a bracket rotatably mounted by a hinge assembly, wherein the hinge assembly comprises a hinge, a rotating shaft and a spring, the rotating shaft is rotatably inserted and mounted on the hinge and fixedly mounted on the bracket by shape fitting to define the rotation axis of the bracket, and the spring is limitingly mounted through the rotating shaft and acts on the hinge and the bracket so as to be twisted when the bracket rotates relative to the hinge.

[0005] In some embodiments, both ends of the spring are hung to the hinge, and the middle part of the spring is hung to the hook structure of the bracket.

[0006] In some embodiments, the spring is provided by symmetrical double torsional springs, and opposite ends of each torsional spring are respectively hung to the hinge and the bracket.

[0007] In some embodiments, the bracket has two hook structures protruding away from each other, and the outer surface of each hook structure comprises an inclined surface formed by chamfering and a curved surface formed by rounding to facilitate the smooth sliding of the spring on the outer surface and lapping on the inner surface of the hook structure.

[0008] In some embodiments, the chamfering is between 35°-45°, and / or the rounding radius is between 1.5mm-3mm.

[0009] In some embodiments, both ends of the spring are hung to the bracket, and the middle part of the spring is hung to the hook structure of the hinge.

[0010] In some embodiments, the turnover structure comprises a tailgate structure and a cover structure, the tailgate structure and the cover structure being independently mounted at the rear of the vehicle body, the tailgate structure comprising a sheet metal and a first panel, a first end of the sheet metal adjacent to the vehicle body being rotatably mounted to the vehicle body by a hinge structure, the first panel being fixedly mounted on a surface of the sheet metal distal to the first end, in the open state, the first end of the sheet metal being shielded by the cover structure.

[0011] In some embodiments, the cover structure further comprises a back door sill, the back door sill being fixedly mounted at the rear of the vehicle body, the hinge being fixedly connected to the back door sill, the bracket being rotatably mounted to the back door sill by the pivot and the spring.

[0012] In some embodiments, the cover structure further comprises a second panel and a felt strip, the bracket being fixedly connected to the second panel, the felt strip being fixedly connected to a surface of the bracket distal to the second panel to provide a contact surface with the tailgate structure.

[0013] In some embodiments, the felt strip is fixed to an end of the bracket distal to the hinge assembly to always adhere to the first panel of the tailgate structure and slide relative to the tailgate structure during turnover.

[0014] In some embodiments, a reinforcing rib is provided on a surface of the bracket distal to the second panel, the reinforcing rib being provided outside the fixed region of the felt strip.

[0015] In some embodiments, the cover structure comprises at least two hinge assemblies spaced apart from each other.

[0016] In some embodiments, a special-shaped structure is provided on one end of the pivot, the special-shaped structure being shaped to fit with a mounting hole on the bracket so as to fixedly mount the pivot to the bracket.

[0017] In some embodiments, the hinge comprises a bottom plate and vertical plates extending upward on both sides of the bottom plate, the pivot passing through the vertical plates.

[0018] In some embodiments, both ends of the spring are hung to the vertical plates, and the middle of the spring is hung to a hook structure of the bracket.

[0019] In some embodiments, the spring is provided by symmetrical double torsional springs, opposite ends of each torsional spring being hung to the vertical plates and the bracket respectively.

[0020] In some embodiments, a stopper is arranged on the hinge, and a counterpart stopper is arranged on the bracket correspondingly, wherein the counterpart stopper is configured to stop on the stopper in the open state of the flap structure to limit the final turning angle of the flap structure.

[0021] In some embodiments, the stopper is arranged between the two vertical plates and is configured to extend upward from the bottom plate.

[0022] In some embodiments, a positioning hole is arranged in the middle of the hinge for positioning the hinge when it is fixed.

[0023] In some embodiments, a reinforcing connecting rib is arranged in the middle of the hook structure to reinforce and strengthen the hook structure.

[0024] In some embodiments, the two side hooks of the hook structure are L-shaped, and the edge of the L-shaped structure extending outward from the bracket is obliquely configured.

[0025] In some embodiments, the middle part of the spring is hung on the hook structure of the bracket, and the section of the middle part of the spring cooperating with the hook structure is obliquely configured.

[0026] In the turning structure according to the present disclosure, the spring is limited by the rotating shaft and hung on the bracket and the hinge so as to be twisted when the bracket rotates relative to the hinge, thereby reducing the amount of hinge to reduce cost and achieving more convenient operation. In addition, the turning structure according to the present disclosure is structurally stable and has high strength, facilitates installation and disassembly and maintenance, meets the weight bearing requirement of the hinge, saves cost, improves installation efficiency, can meet the modularization requirement of different tailgates, can be used for subsequent project standardization and platformization, realizes hinge platformization and cost reduction. In addition, in the turning structure according to the present disclosure, the hinge assembly can be integrated on the bracket of the flap structure in the delivery state, and the bracket of the flap structure can be installed on the vehicle body by fixing the hinge in the hinge assembly on the vehicle body during installation, thereby greatly simplifying the installation process, saving labor time and facilitating the guarantee of high installation precision. Unlike the on-site installation of the rotating shaft in the prior art, in the present disclosure, since the hinge assembly is integrated on the bracket of the flap structure, the rotating shaft is integrated on the bracket of the flap structure, so that the rotating shaft does not need to be installed on site, and only the hinge needs to be fixed on the vehicle body, thereby saving labor time and simplifying installation. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 shows the movement of the turning structure according to one preferred embodiment of the present disclosure between the open state and the closed state.

[0028] Figure 2 is an assembly schematic view of the tailgate structure of Figure 1.

[0029] Fig. 3 is an assembly view of the flap structure of Fig. 1.

[0030] Fig. 4 is an assembly view of the flap structure of Fig. 3.

[0031] Fig. 5 is an assembly view of the hinge assembly of Fig. 4.

[0032] Fig. 6 is a partial enlarged view of Fig. 4.

[0033] Fig. 7 shows the spring of Fig. 6 in a state before being hooked.

[0034] Fig. 8 is a partial enlarged view of Fig. 6.

[0035] Fig. 9 corresponds to Fig. 6 and shows another preferred embodiment of the present disclosure.

[0036] Fig. 10 corresponds to Fig. 6 and shows yet another preferred embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] A preferred embodiment of the present disclosure will be described in detail below with reference to the drawings.

[0038] As shown in Figs. 1-2, a flip structure according to a preferred embodiment of the present disclosure comprises a tailgate structure 1 and a flap structure 2 which are independently mounted at the rear of a vehicle body, wherein the tailgate structure 1 comprises a sheet metal 11 and a first trim panel 12, a first end 111 of the sheet metal 11 adjacent to the vehicle body is rotatably mounted to the vehicle body by a hinge structure (not shown), and the first trim panel 12 is fixedly mounted on a surface of the sheet metal 11 remote from the first end 111. In the open state shown in the left-hand drawing of Fig. 1, the first end 111 of the sheet metal 11 is shielded by the flap structure 2, so that a passenger support and an appearance surface are provided by the flap structure 2 and the first trim panel 12. In the present disclosure, the tailgate structure 1 can be a tailgate for the rear of a pickup truck bed or a tailgate for the rear of a pickup truck trunk, or a lower tailgate of a "sky and earth door" or a two-part tailgate of an SUV. In the open position of such a tailgate structure 1, i.e. in its flipped-back position, the first trim panel 12 can be spaced apart from the trunk. The flap structure 2 according to the present disclosure is used to shield this spacing gap. The tailgate structure 1 can be flipped outwards by a drive, such as an electric motor, via a hinge structure, while the flap structure 2 can always be in contact with the tailgate structure 1 based on a pre-tightening force provided by a spring, for example, and is flipped outwards with the tailgate structure 1 when the tailgate structure 1 is flipped outwards.

[0039] As shown in Fig. 3, the flap structure 2 comprises a back door sill 21, wherein the back door sill 21 is fixedly mounted at the rear of the vehicle body, and the flap structure 2 is rotatably mounted on the back door sill 21 to define the open state and the closed state shown in Fig. 1.

[0040] As shown in FIG. 4, the apron structure 2 comprises a second trim panel 221, a bracket 222, a hinge assembly 223 and a felt strip 224, wherein the second trim panel 221 provides the appearance surface described above, the bracket 222 is fixed to the lower surface of the second trim panel 221, for example, by vibration friction welding, to provide the required strength and is rotatably mounted on the tailgate sill 21 (see FIG. 3) through the hinge assembly 223, and the felt strip 224 is fixedly connected to the surface of the bracket 222 facing away from the second trim panel 221 to provide a contact surface with the tailgate structure 1 (see FIG. 1). In this embodiment, the felt strip 224 is fixed to the end of the bracket 222 away from the hinge assembly 223 so as to always fit on the first trim panel 12 (see FIG. 1) of the tailgate structure 1 during the flipping process and can slide relative to the tailgate structure 1. In the installed state, the second trim panel 221 faces away from the tailgate structure 1 (see FIG. 1), thereby forming the appearance surface of the apron structure 2, while the felt strip 224 faces the tailgate structure 1 and always fits on the first trim panel 12 (see FIG. 1) of the tailgate structure 1. In addition, reinforcing ribs are provided on the surface of the bracket 222 facing away from the second trim panel 221 outside the fixed area of the felt strip 224, so as to reinforce the bracket 222, so that the bracket 222 can bear more load and is less prone to deformation. In this embodiment, the apron structure 2 comprises two hinge assemblies 223 spaced apart from each other, facilitating tailgate product assembly and avoiding the high precision requirement of the through shaft design in the prior art. It should be understood that the apron structure 2 composed of the two hinge assemblies 223, the bracket 222 and the second trim panel 221 has been verified to meet the load requirement of 2500N in the Z direction, meeting the needs of various application scenarios (picnicking, camping, fishing, leaning, cycling, resting), but more hinge assemblies 223 can also be used in the present disclosure.

[0041] As shown in FIG. 5, the hinge assembly 223 comprises a hinge 2231, a rotating shaft 2232 and a spring 2233, wherein the hinge 2231 is fixedly connected to the tailgate sill 21 (see FIG. 3), for example, by bolts, the rotating shaft 2232 is rotatably inserted and mounted on the hinge 2231, and the spring 2233 is limitingly mounted through the rotating shaft 2232 and has both ends hung to the hinge 2231.

[0042] As can be clearly seen from Fig. 5, the middle of the rotating shaft 2232 has a circular cross section, and a special-shaped structure 2232a is arranged on one end of the rotating shaft 2232, which is matched with the mounting hole shape of the bracket 222, so that the rotating shaft 2232 is fixedly mounted on the bracket 222. In addition, the special-shaped structure 2232a can prevent the rotating shaft 2232 from rotating when the baffle structure 2 is turned over. The special-shaped structure 2232a can have a D-shaped structure as shown in Fig. 5. In addition, the special-shaped structure 2232a has a larger cross-sectional size relative to the middle circular part of the rotating shaft 2232, so that in the mounted state, the rotating shaft 2232 can be prevented from being pulled out axially. Of course, it is also conceivable that the special-shaped structure 2232a has a smaller cross-sectional size relative to the middle circular part of the rotating shaft 2232. In addition, a circlip 2232b is arranged on the other end of the rotating shaft 2232, which can cooperate with the special-shaped structure 2232a to achieve axial limiting of the rotating shaft 2232, and also prevent the rotating shaft 2232 from being pulled out axially.

[0043] As shown in Fig. 6, the rotating shaft 2232 is fixedly mounted on the bracket 222 by shape matching to define the rotation axis of the bracket 222, and the bracket 222 has two protruding back hook structures, and the middle of the spring 2233 is hung on the hook structure so as to be twisted when the bracket 222 rotates relative to the hinge 2231. In this case, the "J" shaped middle of the spring 2233 in the state of being hung on the hook structure can prevent the spring 2233 from moving in the transverse direction of the bracket 222 and in the direction perpendicular to the transverse direction, and prevent the spring 2233 from being pulled out. In addition, as can be clearly seen from Fig. 6, the hinge 2231 includes a bottom plate 2231c and a standing plate 2231d extending upward on both sides of the bottom plate 2231c, and the rotating shaft 2232 passes through the standing plate 2231d. In this embodiment, the two ends of the spring 2233 are hung to the standing plate 2231d, and the middle of the spring 2233 is hung on the hook structure of the bracket 222.

[0044] By the hanging of the spring 2233 with the hook structure, more convenient operation and non-integrated supply are realized. In the supply state, the middle part of the spring 2233 is overlapped on the hinge 2231 in the free state, as shown in FIG. 7, and the client can push it into the hook structure for installation according to the needs. In this way, the hinge function is integrated on the bracket 222 by the spring 2233, which can reduce the amount of hinge and improve the installation efficiency, and achieve the cost saving of quantity and working hours. That is, in the supply state, the spring 2233 is not hung, which is convenient for on-site installation. Specifically, during installation, the hinge 2231 can be fixed first, and then the spring 2233 is hung on the hook structure, so that the hinge 2231 can be fixed without pre-tightening force first, and then the spring 2233 is hung and pre-tightening force is generated, which can realize advantageous on-site installation. In this embodiment, the strength of the hinge assembly 223 can bear a load of 200N, and the deformation amount is <1mm. It should be understood that the torsion size can be adjusted as needed by changing the wire diameter and the number of turns of the spring 2233.

[0045] In order to limit the final turning angle of the baffle structure 2 when the baffle structure 2 is turned with the hinge 2231, as shown in FIG. 6, a protruding stop portion 2231a is arranged on the hinge 2231, and a corresponding protruding counter-stop portion 222a is arranged on the bracket 222, wherein in the open state of the baffle structure 2, the counter-stop portion 222a can be stopped on the stop portion 2231a to limit the final turning angle of the baffle structure 2. The stop portion 222a is arranged between the two vertical plates 2231d and is configured to extend upward from the bottom plate 2231c. For example, the stop portion 2231a can be a protruding piece configured to protrude from the edge in the middle of the hinge 2231. The counter-stop portion 222a can be configured as a protruding block arranged at a position corresponding to the protruding piece in the middle of the hinge 2231 on the bracket 222.

[0046] In addition, in order to facilitate positioning during on-site installation, as shown in FIGS. 5 and 6, a positioning hole 2231b can be arranged in the middle of the hinge 2231, which can be sleeved on the positioning column 21a (see FIG. 3) of the back door sill 21 during on-site installation to achieve installation pre-positioning. Threaded connection holes are arranged on both sides of the positioning hole, in which bolts can be inserted, for example, bolts can be inserted from below during on-site installation, and then nuts are screwed from above to fix the hinge 2231.

[0047] As can be clearly seen from FIGS. 7 and 8, a reinforcing connecting rib 2223 is arranged in the middle of the hook structure for reinforcing and strengthening the hook structure. The two side hooks of the hook structure can be L-shaped, and the edge portion 2224 of the L-shaped structure extending outward from the bracket 222 can be obliquely configured, and correspondingly, the section of the middle portion of the spring 2233 cooperating with the hook structure is also obliquely configured, so as to prevent the spring 2233 from moving when the spring 2233 is clamped on the hook structure.

[0048] As shown in FIG. 8, the outer surface of the hook structure of the bracket 222 includes an inclined surface 2221 and a curved surface 2222, so that the spring 2233 can smoothly slide over the outer surface and lap on the inner surface of the hook structure. The inclined surface 2221 is formed by chamfering, i.e., the straight edge is cut to form the inclined surface to provide a smooth transition. Preferably, the chamfer is between 35°-45°. The curved surface 2222 is formed by rounding, i.e., the corner edge is processed to form the smooth curved surface 2222 to provide a smooth transition and avoid stress concentration. Preferably, the rounding radius R is between 1.5mm-3mm. In the embodiment, the depth D of the hook structure of the bracket 222 is between 3-5mm, and the width W is between 3-5mm, which can prevent the spring 2233 from falling out of the hook while facilitating the disassembly and maintenance of the spring 2233.

[0049] In the above embodiment, the two ends of the spring 2233 are hung to the hinge 2231, and the middle portion is hung to the hook structure of the bracket 222. In another preferred embodiment, as shown in FIG. 9, the two ends of the spring 2233' are hung to the bracket 222', and the middle portion is hung to the hook structure of the hinge 2231'. In yet another preferred embodiment, as shown in FIG. 10, the spring 2233" is provided by a symmetrical double torsional spring, and the opposite ends of each torsional spring are hung to the bracket and the hinge, respectively. In this embodiment, the opposite ends of each torsional spring are hung to the vertical plate 2231d and the bracket 222, respectively. As can be clearly seen from FIG. 10, in this embodiment, the hook structure can be configured as in the embodiment shown in FIGS. 6 and 7.

[0050] The above description is only a preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. The above-described embodiments of the present disclosure can also be variously changed. That is, any simple, equivalent changes and modifications made in accordance with the content of the claims and the specification of the present disclosure fall within the scope of protection of the present disclosure. The present disclosure does not describe all conventional technical contents.

Claims

1. A flip structure, characterized by, The turnover structure comprises a bracket rotatably mounted through a hinge assembly, wherein the hinge assembly comprises a hinge, a rotating shaft and a spring, the rotating shaft is rotatably inserted and mounted on the hinge and fixedly mounted on the bracket through a shape fit to define a rotating axis of the bracket, and the spring is limitingly mounted through the rotating shaft and acts on the hinge and the bracket to be twisted when the bracket rotates relative to the hinge.

2. The flip structure of claim 1, wherein Two ends of the spring are hung on the hinge, and a middle part of the spring is hung on a hook structure of the bracket.

3. The flip structure of claim 1, wherein, The spring is provided by symmetrical double torsional springs, and opposite ends of each torsional spring are hung on the hinge and the bracket, respectively.

4. Flip structure according to claim 2 or 3, characterized in that The bracket has two protruding back hook structures, and an outer surface of each hook structure comprises an inclined surface formed by a chamfer and a curved surface formed by a rounded corner to facilitate smooth sliding of the spring on the outer surface and lapping on an inner surface of the hook structure.

5. The flip structure of claim 4, wherein, The chamfer is between 35°-45°, and / or the rounded corner radius is between 1.5mm-3mm.

6. The flip structure of claim 1, wherein Two ends of the spring are hung on the bracket, and a middle part of the spring is hung on a hook structure of the hinge.

7. The flip structure of claim 1, wherein The turnover structure comprises a tail door structure independently mounted at a rear part of a vehicle body and a shutter structure comprising the hinge assembly and the bracket, wherein the tail door structure comprises a sheet metal and a first trim panel, a first end of the sheet metal adjacent to the vehicle body is rotatably mounted on the vehicle body through a hinge structure, the first trim panel covers a surface of the sheet metal away from the first end and is fixedly mounted, and in an open state, the first end of the sheet metal is shielded by the shutter structure.

8. The flip structure of claim 7, wherein, The shutter structure further comprises a back door sill, wherein the back door sill is fixedly mounted at the rear part of the vehicle body, the hinge is fixedly connected on the back door sill, and the bracket is rotatably mounted on the back door sill through the rotating shaft and the spring.

9. The flip structure of claim 7, wherein, The shutter structure further comprises a second trim panel and a felt strip, the bracket is fixedly connected with the second trim panel, and the felt strip is fixedly connected on a surface of the bracket away from the second trim panel to provide a contact surface with the tail door structure.

10. The flip structure of claim 9, wherein, The felt strip is fixed on an end of the bracket away from the hinge assembly to always adhere to the first trim panel of the tail door structure and slide relative to the tail door structure during turnover.

11. The flip structure of claim 9, wherein, A reinforcing rib is arranged on the surface of the bracket away from the second trim panel, and the reinforcing rib is arranged outside a fixing area of the felt strip.

12. The flip structure of claim 7, wherein, The shutter structure comprises at least two hinge assemblies spaced apart from each other.

13. The flip structure of claim 1, wherein, A special-shaped structure is arranged on one end of the rotating shaft, and the special-shaped structure is matched with a mounting hole on the bracket to fixedly mount the rotating shaft on the bracket.

14. The flip structure of claim 1, wherein, The hinge comprises a bottom plate and vertical plates extending upward on both sides of the bottom plate, and the rotating shaft penetrates through the vertical plates.

15. The flip structure of claim 14, wherein, Two ends of the spring are hung on the vertical plates, and a middle part of the spring is hung on a hook structure of the bracket.

16. The flip structure of claim 14, wherein, The spring is provided by symmetrical double torsional springs, and opposite ends of each torsional spring are hung on the vertical plates and the bracket, respectively.

17. The flip structure of claim 1, wherein A stopper is arranged on the hinge, and a counterpart stopper is arranged on the bracket correspondingly, wherein the counterpart stopper is configured to stop on the stopper in the open state of the flap structure to limit the final turning angle of the flap structure.

18. The flip structure of claim 17, wherein, The stopper is arranged between the two vertical plates and is configured to extend upward from the bottom plate.

19. The flip structure of claim 1, wherein A positioning hole is arranged in the middle of the hinge for hinge positioning when the hinge is fixed.

20. The flip structure of claim 2 or 6, wherein A reinforcing connecting rib is arranged in the middle of the hook structure for reinforcing and reinforcing the hook structure.

21. The flip structure of claim 2 or 6, wherein, The two side hooks of the hook structure are L-shaped, and the side of the L-shaped structure extending outward from the bracket is obliquely configured.

22. The flip structure of claim 21, wherein, The middle part of the spring is hung on the hook structure of the bracket, and the section of the middle part of the spring cooperating with the hook structure is obliquely configured.

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