Automobile sliding door hinge guide rail structure

Abstract

The invention relates to an automobile door structure, in particular to an automobile sliding door hinge guide rail structure. Comprising a vehicle door, a middle hinge, a middle guide rail, a lower hinge and a lower guide rail, the middle hinge is in sliding fit with the middle guide rail through an upper guide wheel assembly, a lower guide wheel assembly and a first bearing wheel, and the hinge is in sliding fit with the lower guide rail through an upper guide wheel set, a lower guide wheel set and a second bearing wheel; according to the automobile sliding door hinge guide rail structure adopting the scheme, after an upper guide rail is omitted, in order to achieve the stability of an automobile door, reduce the swing amount of the hinge in the guide rail and cancel the constraint of the upper hinge on the modeling, a breakthrough is made in the automobile modeling.

Description

Technical Field

[0001] The invention relates to a vehicle door, in particular to a hinge guide rail structure of a vehicle sliding door. Background Art

[0002] As time goes by, the speed of social development is changing with each passing day. Cars have become an indispensable means of transportation for people. With the development, consumers are also paying more attention to the quality of cars, especially the quality of high-end commercial vehicles. Especially under the impact of new energy vehicle styling today, it is difficult for traditional MPV styling to make a breakthrough.

[0003] In the existing MPV car design, the traditional sliding door usually adopts a three-point structural guide system, upper, middle and lower hinge guide structure to ensure the stability of the door during opening and closing. However, this fixed installation form limits the design of the body roof, affects the overall beauty and design flexibility of the vehicle, and is relatively simple in shape.

[0004] To solve this problem, some manufacturers have tried to adopt a dual-track solution (i.e., only retaining the middle and lower tracks) to improve the flexibility of the roof shape. However, after removing the upper track, the door is prone to shaking during opening and closing, resulting in a decline in user experience and potential safety hazards. Although increasing the hinge stiffness can improve the stability of the door to a certain extent, this method alone cannot completely solve the problem, so a new solution is needed to ensure both the stability of the door and the flexibility of the roof shape. Summary of the invention

[0005] The present invention aims to achieve a breakthrough in automobile styling. After removing the upper guide rail, in order to achieve the stability of the door, the swing amount of the hinge in the guide rail is reduced, and the constraint of the upper hinge on the shape is removed, thereby providing a hinge guide rail structure for an automobile sliding door.

[0006] A hinge guide rail structure for a sliding door of an automobile in the present invention comprises a door, a middle hinge, a middle guide rail, a lower hinge and a lower guide rail; a middle door bracket is fixedly provided at the middle part of the door, and a lower door bracket is fixedly provided at the bottom of the door; one end of the middle hinge is hinged to the middle door bracket, and the other end is slidably matched with the middle guide rail; one end of the lower hinge is hinged to the lower door bracket, and the other end is slidably matched with the lower guide rail. The middle hinge is provided with an upper guide wheel assembly, a lower guide wheel assembly and a first load-bearing wheel, the first load-bearing wheel is arranged in the middle, the upper guide wheel assembly is arranged above the first load-bearing wheel, and the lower guide wheel assembly is arranged below the first load-bearing wheel, and the middle hinge slides with the middle guide rail through the upper guide wheel assembly, the lower guide wheel assembly and the first load-bearing wheel; the lower hinge is provided with an upper guide wheel group, a lower guide wheel group and a second load-bearing wheel, the second load-bearing wheel is arranged in the middle, the upper guide wheel group is arranged above the second load-bearing wheel, and the lower guide wheel group is arranged below the second load-bearing wheel; the lower hinge slides with the lower guide rail through the upper guide wheel group, the lower guide wheel group and the second load-bearing wheel.

[0007] Furthermore, the middle hinge includes a first connecting plate and a bearing bracket arranged at one end of the first connecting plate, and the upper guide wheel assembly, the lower guide wheel assembly and the first load-bearing wheel are arranged at the other end of the first connecting plate.

[0008] Furthermore, the upper guide wheel assembly includes an upper guide wheel bracket and at least one first upper guide wheel, one end of the upper guide wheel bracket is connected to the first connecting plate, and the other end of the upper guide wheel bracket is upwardly provided with the first upper guide wheel that rotates horizontally; a pull wire column is downwardly provided in the middle of the upper guide wheel bracket.

[0009] Furthermore, the lower guide wheel assembly includes a lower guide wheel bracket and at least one first lower guide wheel, the top of the lower guide wheel bracket is rotatably arranged on the first connecting plate, and the bottom of the lower guide wheel bracket is downwardly provided with the first lower guide wheel that rotates horizontally.

[0010] Further, the middle guide rail is a groove-type structure with an open end, including a first guide rail side wall, a first upper guide wheel groove is provided on the top of the first guide rail side wall, a first lower guide wheel groove is provided on the top of the first guide rail side wall, and a first load-bearing platform is provided on the first guide rail side wall; the upper guide wheel assembly is slidably arranged in the first upper guide wheel groove, the lower guide wheel assembly is slidably arranged in the first lower guide wheel groove, and the first load-bearing wheel is slidably arranged on the first load-bearing platform.

[0011] Furthermore, the guide wheel bracket is rotatably mounted on the first connecting plate via a pin shaft, and the first load-bearing wheel is also rotatably mounted on the pin shaft.

[0012] Furthermore, the lower hinge includes a second connecting plate and a bearing pulley bracket, one end of the second connecting plate is fixedly connected to the lower door bracket, and the other end of the second connecting plate is rotatably connected to the bearing pulley bracket, and the upper guide wheel group, the lower guide wheel group and the second load-bearing wheel are arranged on the bearing pulley bracket.

[0013] Furthermore, the lower guide rail is a groove-type structure with an open end, including a second guide rail side wall, a second upper guide wheel groove is provided at the top of the second guide rail side wall, a second lower guide wheel groove is provided at the bottom of the second guide rail side wall, and a second load-bearing platform is provided at the groove edge of the second lower guide wheel groove, the upper guide wheel group is slidably matched with the second upper guide wheel groove, the lower guide wheel group is slidably matched with the second lower guide wheel groove, and the second load-bearing wheel is slidably matched with the second load-bearing platform.

[0014] Further, the upper guide wheel group includes at least two second upper guide wheels, and the lower guide wheel group includes at least two second lower guide wheels, the second upper guide wheels are slidably fitted inside and outside the second upper guide wheel groove, and the second upper guide wheel outside the second upper guide wheel groove is slidably fitted with the outer wall of the groove opening of the second upper guide wheel groove; the second lower guide wheels are slidably fitted inside and outside the second lower guide wheel groove, and the second lower guide wheel outside the second lower guide wheel groove is slidably fitted with the outer wall of the groove opening of the second lower guide wheel groove.

[0015] Further, the upper guide wheel group includes 4 second upper guide wheels, and the lower guide wheel group includes 4 second lower guide wheels; 2 second upper guide wheels are arranged in the second upper guide wheel groove, and the remaining 2 second upper guide wheels are arranged outside the second upper guide wheel groove, and the inner and outer second upper guide wheels are symmetrically arranged; 2 second lower guide wheels are arranged in the second lower guide wheel groove, and the remaining 2 second lower guide wheels are arranged outside the second lower guide wheel groove, and the inner and outer second lower guide wheels are symmetrically arranged.

[0016] The advantages of the present invention are as follows: the present invention improves the structures of the middle hinge, middle guide rail, lower hinge and lower guide rail, thereby offsetting the disadvantage of large swing amount during opening and closing of the door after removing the upper guide rail structure, and improving the stability of the door's sliding process.

[0017] A set of upper and lower guide wheels are respectively arranged above and below the load-bearing wheels on the middle hinge. This solution can effectively solve the problem of the middle hinge shaking in the middle guide rail and reduce the swing amount of the middle hinge in the middle guide rail. According to the shape of the middle hinge, the middle guide rail is adjusted. Compared with the traditional middle guide rail, the changed middle guide rail moves upward at the position of the original load-bearing surface, thereby leaving an additional guide groove position below the load-bearing surface, and the overall middle guide rail opening is also larger than the traditional middle guide rail.

[0018] Through different guide wheel layouts, the lower hinge can clamp the guide wheels on the guide rails during the shaking process of the door, which can generate a reverse force to reduce the shaking, thereby achieving stability during the opening and closing process of the door, adapting to different installation environments, improving smoothness, enhancing durability, reducing noise, and evenly distributing stress. Various technical effects ensure the high performance and reliability of the sliding door hinge system in various application scenarios, while eliminating the restrictions of the upper guide rail on the shape of the vehicle roof, enhancing the overall appearance and design innovation of the vehicle, and ultimately improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a hinge guide rail structure of a vehicle sliding door according to the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the cooperation between the middle hinge and the middle guide rail of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the cooperation between the lower hinge and the lower guide rail of the present invention;

[0022] Figure 4 It is a three-dimensional diagram of the middle hinge of the present invention;

[0023] Figure 5 Another perspective view of the middle hinge of the present invention;

[0024] Figure 6 is a three-dimensional diagram of the lower hinge of the present invention;

[0025] Figure 7 is a cross-sectional view of the middle guide rail of the present invention;

[0026] Figure 8 is a cross-sectional view of the lower guide rail of the present invention;

[0027] The reference numerals in the figure include: middle hinge 100, first connecting plate 101, bearing bracket 102; middle guide rail 110, first guide rail side wall 111, first upper guide wheel groove 113, first lower guide wheel groove 112, first load-bearing platform 114; middle door bracket 130; upper guide wheel assembly 150, upper guide wheel bracket 151, first upper guide wheel 152, cable tie post 143; lower guide wheel assembly 140, lower guide wheel bracket 141, first lower guide wheel 142, pin 153; first load-bearing wheel 160.

[0028] Lower hinge 200, second connecting plate 201, bearing pulley bracket 202, wire connecting hole 203, stopper 204; lower guide rail 210, second guide rail side wall 211, second upper guide wheel groove 212, second lower guide wheel groove 213, second load-bearing platform 214; lower door bracket 230; upper guide wheel group 240, second upper guide wheel 241; lower guide wheel group 250, second lower guide wheel 242; second load-bearing wheel 260, door 300. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0030] according to Figures 1 to 8 As shown, the present invention provides a hinge guide rail structure for a sliding door of an automobile, comprising a door 300, a middle hinge 100, a middle guide rail 110, a lower hinge 200 and a lower guide rail 210; a middle door bracket 130 is fixedly provided at the middle of the door 300, and a lower door bracket 230 is fixedly provided at the bottom of the door; one end of the middle hinge 100 is hinged to the middle door bracket 130, and the other end is slidably matched with the middle guide rail 110; one end of the lower hinge 200 is hinged to the lower door bracket 230, and the other end is slidably matched with the lower guide rail 210.

[0031] See Figure 2 The middle hinge 100 is provided with an upper guide wheel assembly 150, a lower guide wheel assembly 140 and a first load-bearing wheel 160. The first load-bearing wheel 160 is arranged in the middle. The upper guide wheel assembly 150 is arranged above the first load-bearing wheel 160, and the lower guide wheel assembly 140 is arranged below the first load-bearing wheel 160. The middle hinge 100 is slidably matched with the middle guide rail 110 through the upper guide wheel assembly 150, the lower guide wheel assembly 140 and the first load-bearing wheel 160.

[0032] See Figure 3 The lower hinge 200 is provided with an upper guide wheel group 240, a lower guide wheel group 250 and a second load-bearing wheel 260. The second load-bearing wheel 260 is arranged in the middle. The upper guide wheel group 240 is arranged above the second load-bearing wheel 260, and the lower guide wheel group 250 is arranged below the second load-bearing wheel 260. The lower hinge 200 slides with the lower guide rail 210 through the upper guide wheel group 240, the lower guide wheel group 250 and the load-bearing wheel 260.

[0033] See Figure 4 The middle hinge 100 includes a first connecting plate 101 and a bearing bracket 102 arranged at one end of the first connecting plate 101, and an upper guide wheel assembly 150, a lower guide wheel assembly 140 and a first load-bearing wheel 160 are arranged at the other end of the first connecting plate 101.

[0034] See Figure 4Specifically, the upper guide wheel assembly 150 includes an upper guide wheel bracket 151 and at least one first upper guide wheel 152, one end of the upper guide wheel bracket 151 is connected to the first connecting plate 101, and the other end of the upper guide wheel bracket 151 is upwardly provided with a horizontally rotating first upper guide wheel 152; a pull-wire column 143 is downwardly provided in the middle of the upper guide wheel bracket 151.

[0035] See Figure 4 , 5 Specifically, the lower guide wheel assembly 140 includes a lower guide wheel bracket 141 and at least one first lower guide wheel 142. The top of the lower guide wheel bracket 141 is rotatably disposed on the first connecting plate 101, and the bottom of the lower guide wheel bracket 141 is downwardly provided with a first lower guide wheel 142 that rotates horizontally. The guide wheel bracket 151 is rotatably disposed on the first connecting plate 101 through a pin shaft 153, and the first load-bearing wheel 160 is also rotatably disposed on the pin shaft 153.

[0036] See Figure 4 In this embodiment, the upper guide wheel bracket 151 is integrally formed on the first connecting plate 101, and the number of the first upper guide wheels 152 is 2. The number of the first lower guide wheels 142 is 2.

[0037] See Figure 7 As a further improvement of the present embodiment, the middle guide rail 110 is a groove-shaped structure with one end open, including a first guide rail side wall 111, a first upper guide wheel groove 113 is provided at the top of the first guide rail side wall 111, a first lower guide wheel groove 112 is provided at the top of the first guide rail side wall 111, and a first load-bearing platform 114 is provided on the first guide rail side wall 111; the upper guide wheel assembly 150 is slidably disposed in the first upper guide wheel groove 113, the lower guide wheel assembly 140 is slidably disposed in the first lower guide wheel groove 112, and the first load-bearing wheel 160 is slidably disposed on the first load-bearing platform 114. Specifically, the first upper guide wheel groove 113 is integrally formed on the first guide rail side wall 111, the first lower guide wheel groove 112 is integrally formed on the first guide rail side wall 111, and the first load-bearing platform 114 is a horizontal plane formed by bending inwardly in the middle of the first guide rail side wall 111.

[0038] See Figure 6 , wherein the lower hinge 200 includes a second connecting plate 201 and a bearing pulley bracket 202, one end of the second connecting plate 201 is fixedly connected to the lower door bracket 230, and the other end of the second connecting plate 201 is rotatably connected to the bearing pulley bracket 202, and the bearing pulley bracket 202 is provided with an upper guide wheel group 240, a lower guide wheel group 250 and a load-bearing wheel 260. A pull wire connection hole 203 is provided on the second connecting plate 201. A stopper 204 is provided on the second connecting plate 201, and the stopper 204 can resist one end of the bearing pulley bracket 202.

[0039] See Figure 6The upper guide wheel group 240 includes at least two second upper guide wheels 241, and the lower guide wheel group 250 includes at least two second lower guide wheels 242. The second upper guide wheel groove 212 is slidably fitted with the second upper guide wheel 241 inside and outside, and the second upper guide wheel 241 outside the second upper guide wheel groove 212 is slidably fitted with the outer wall of the groove opening of the second upper guide wheel groove 212; the second lower guide wheel 242 is slidably fitted with the second lower guide wheel groove 213 inside and outside, and the second lower guide wheel 242 outside the second lower guide wheel groove 213 is slidably fitted with the outer wall of the groove opening of the second lower guide wheel groove 213.

[0040] See Figure 6 In this embodiment, the upper guide wheel group 240 includes four second upper guide wheels 241, and the lower guide wheel group 250 includes four second lower guide wheels 242; two second upper guide wheels 241 are arranged in the second upper guide wheel groove 212, and the remaining two second upper guide wheels 241 are arranged outside the second upper guide wheel groove 212, and the inner and outer second upper guide wheels 241 are symmetrically arranged; two second lower guide wheels 242 are arranged in the second lower guide wheel groove 213, and the remaining two second lower guide wheels 242 are arranged outside the second lower guide wheel groove 213, and the inner and outer second lower guide wheels 242 are symmetrically arranged.

[0041] See Figure 8 As a further improvement of the present embodiment, the lower guide rail 210 is a groove-type structure with an opening at one end, including a second guide rail side wall 211, a second upper guide wheel groove 212 is provided at the top of the second guide rail side wall 211, a second lower guide wheel groove 213 is provided at the bottom of the second guide rail side wall 211, a second load-bearing platform 214 is provided at the groove edge of the second lower guide wheel groove 213, the upper guide wheel group 240 is slidably matched with the second upper guide wheel groove 212, the lower guide wheel group 250 is slidably matched with the second lower guide wheel groove 213, and the load-bearing wheel 260 is slidably matched with the second load-bearing platform 214.

[0042] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A hinge guide rail structure for a sliding door of an automobile, comprising a door (300), a middle hinge (100), a middle guide rail (110), a lower hinge (200) and a lower guide rail (210); a middle door bracket (130) is fixedly provided at the middle of the door (300), and a lower door bracket (230) is fixedly provided at the bottom of the door; one end of the middle hinge (100) is hinged to the middle door bracket (130), and the other end is slidably matched with the middle guide rail (110); one end of the lower hinge (200) is hinged to the lower door bracket (230), and the other end is slidably matched with the lower guide rail (210), characterized in that: The middle hinge (100) is provided with an upper guide wheel assembly (150), a lower guide wheel assembly (140) and a first load-bearing wheel (160), wherein the first load-bearing wheel (160) is arranged in the middle, the upper guide wheel assembly (150) is arranged above the first load-bearing wheel (160), and the lower guide wheel assembly (140) is arranged below the first load-bearing wheel (160), and the middle hinge (100) is slidably matched with the middle guide rail (110) through the upper guide wheel assembly (150), the lower guide wheel assembly (140) and the first load-bearing wheel (160); The lower hinge (200) is provided with an upper guide wheel group (240), a lower guide wheel group (250) and a second load-bearing wheel (260); the second load-bearing wheel (260) is arranged in the middle; the upper guide wheel group (240) is arranged above the second load-bearing wheel (260), and the lower guide wheel group (250) is arranged below the second load-bearing wheel (260); the lower hinge (200) is slidably matched with the lower guide rail (210) through the upper guide wheel group (240), the lower guide wheel group (250) and the second load-bearing wheel (260).

2. The automobile sliding door hinge guide rail structure according to claim 1, characterized in that: The middle hinge (100) comprises a first connecting plate (101) and a bearing bracket (102) arranged at one end of the first connecting plate (101), and the upper guide wheel assembly (150), the lower guide wheel assembly (140) and the first load-bearing wheel (160) are arranged at the other end of the first connecting plate (101).

3. The automobile sliding door hinge guide rail structure according to claim 2, characterized in that: The upper guide wheel assembly (150) comprises an upper guide wheel bracket (151) and at least one first upper guide wheel (152); one end of the upper guide wheel bracket (151) is connected to the first connecting plate (101); the other end of the upper guide wheel bracket (151) is provided with the first upper guide wheel (152) which rotates horizontally upward; and a pull-wire column (143) is provided downward in the middle of the upper guide wheel bracket (151).

4. The automobile sliding door hinge guide rail structure according to claim 2 or 3, characterized in that: The lower guide wheel assembly (140) comprises a lower guide wheel bracket (141) and at least one first lower guide wheel (142); the top of the lower guide wheel bracket (141) is rotatably arranged on the first connecting plate (101); and the bottom of the lower guide wheel bracket (141) is provided with the first lower guide wheel (142) which rotates horizontally.

5. The automobile sliding door hinge guide rail structure according to claim 1, characterized in that: The middle guide rail (110) is a groove-shaped structure with one end open, comprising a first guide rail side wall (111), a first upper guide wheel groove (113) is provided at the top of the first guide rail side wall (111), a first lower guide wheel groove (112) is provided at the top of the first guide rail side wall (111), and a first load-bearing platform (114) is provided on the first guide rail side wall (111); the upper guide wheel assembly (150) is slidably arranged in the first upper guide wheel groove (113), the lower guide wheel assembly (140) is slidably arranged in the first lower guide wheel groove (112), and the first load-bearing wheel (160) is slidably arranged on the first load-bearing platform (114).

6. The automobile sliding door hinge guide rail structure according to claim 4, characterized in that: The lower guide wheel bracket (141) is rotatably mounted on the first connecting plate (101) via a pin shaft (153), and the first load-bearing wheel (160) is also rotatably mounted on the pin shaft (153).

7. The automobile sliding door hinge guide rail structure according to claim 1, characterized in that: The lower hinge (200) comprises a second connecting plate (201) and a bearing pulley bracket (202); one end of the second connecting plate (201) is fixedly connected to the lower door bracket (230); the other end of the second connecting plate (201) is rotatably connected to the bearing pulley bracket (202); and the upper guide wheel group (240), the lower guide wheel group (250) and the second load-bearing wheel (260) are arranged on the bearing pulley bracket (202).

8. The automobile sliding door hinge guide rail structure according to claim 1, characterized in that: The lower guide rail (210) is a groove-shaped structure with one end open, comprising a second guide rail side wall (211), a second upper guide wheel groove (212) is provided at the top of the second guide rail side wall (211), a second lower guide wheel groove (213) is provided at the bottom of the second guide rail side wall (211), a second load-bearing platform (214) is provided at the groove edge of the second lower guide wheel groove (213), the upper guide wheel group (240) is slidably matched with the second upper guide wheel groove (212), the lower guide wheel group (250) is slidably matched with the second lower guide wheel groove (213), and the second load-bearing wheel (260) is slidably matched with the second load-bearing platform (214).

9. The automobile sliding door hinge guide rail structure according to claim 8, characterized in that: The upper guide wheel group (240) includes at least two second upper guide wheels (241), and the lower guide wheel group (250) includes at least two second lower guide wheels (242); the second upper guide wheels (241) are slidably matched inside and outside the second upper guide wheel groove (212), and the second upper guide wheel (241) outside the second upper guide wheel groove (212) is slidably matched with the outer wall of the second upper guide wheel groove (212); the second lower guide wheels (242) are slidably matched inside and outside the second lower guide wheel groove (213), and the second lower guide wheel (242) outside the second lower guide wheel groove (213) is slidably matched with the outer wall of the notch of the second lower guide wheel groove (213).

10. The automobile sliding door hinge guide rail structure according to claim 9, characterized in that: The upper guide wheel group (240) includes four second upper guide wheels (241), and the lower guide wheel group (250) includes four second lower guide wheels (242); two of the second upper guide wheels (241) are arranged in the second upper guide wheel groove (212), and the remaining two of the second upper guide wheels (241) are arranged outside the second upper guide wheel groove (212), and the inner and outer second upper guide wheels (241) are symmetrically arranged; two of the second lower guide wheels (242) are arranged in the second lower guide wheel groove (213), and the remaining two of the second lower guide wheels (242) are arranged outside the second lower guide wheel groove (213), and the inner and outer second lower guide wheels (242) are symmetrically arranged.

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