Sliding door opening mechanism

Abstract

The present invention discloses a sliding door opening mechanism, comprising: a guide rail assembly, the guide rail assembly comprising an upper guide rail, the upper guide rail being arranged above the vehicle body side door opening and including an upper guide groove; a middle guide rail; a lower guide rail being arranged below the vehicle body side door opening and including an inner guide groove and an outer guide groove; a hinge assembly, the hinge assembly comprising an upper hinge; a middle hinge, the middle hinge comprising a middle hinge door mounting bracket and a middle hinge roller mounting bracket, the middle hinge roller mounting bracket being provided with a middle hinge guide roller, the middle hinge guide roller being rotatably connected to the middle guide groove of the middle guide rail; and a lower hinge, the lower hinge comprising a lower hinge door mounting bracket, a lower hinge swing arm bracket, and a lower hinge roller mounting bracket. The opening mechanism has a simple structure and can minimize the space occupied by the vehicle chassis when the sliding door is opened.

Description

Technical Field

[0001] The invention belongs to the field of sliding doors, and in particular relates to a sliding door opening mechanism. Background Art

[0002] A known sliding door vehicle comprises a vehicle body with a door opening on the side of the vehicle body; a door that opens and closes the door opening; and a motion guide mechanism comprising guide rails and hinges. The guide rails are fixed to the upper, middle, and lower portions of the door opening on the vehicle body. The hinges are equipped with rollers, including an upper hinge that engages with the upper guide rail, a middle hinge that engages with the middle guide rail, and a lower hinge that engages with the lower guide rail. The hinges are securely connected to the door and can slide forward and backward along the guide rails to open and close the door.

[0003] Since most new energy vehicle-mounted energy storage devices on the market are installed under the vehicle chassis, the volume of the on-board energy storage devices must be increased to improve the endurance of new energy vehicles. The lower guide rail in the above-mentioned known sliding door motion guide mechanism is arranged under the door opening on the vehicle body side, occupying the vehicle chassis space, and the front end of the lower guide rail extends into the vehicle, encroaching on a large amount of internal chassis space. Figure 1 As shown, this restricts the need for new energy vehicle models to be equipped with larger on-board energy storage devices. Summary of the Invention

[0004] In order to solve one or more of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a sliding door opening mechanism with a simple structure, which can enable the sliding door to occupy less vehicle chassis space when opened.

[0005] To achieve the above object, the present invention provides a sliding door opening mechanism, comprising:

[0006] A guide rail assembly, the guide rail assembly comprising:

[0007] an upper guide rail disposed at an upper portion of the vehicle body side door opening and comprising an upper guide groove;

[0008] a middle guide rail, which is arranged in the middle of the door opening on the vehicle body side and includes a middle guide groove and a middle bearing surface;

[0009] A lower guide rail, which is arranged at the lower part of the door opening on the vehicle body side, and includes an inner guide groove and an outer guide groove, wherein the outer guide groove is composed of a straight line segment at the rear end and an arc segment at the front end, and the inner guide groove is composed of a straight line segment; or the outer guide groove is composed of a straight line segment, and the inner guide groove is composed of a straight line segment at the rear end and an arc segment at the front end;

[0010] A hinge assembly, the hinge assembly comprising:

[0011] An upper hinge, comprising an upper hinge door mounting bracket and an upper hinge roller mounting bracket, wherein the upper hinge roller mounting bracket is provided with an upper hinge guide roller, and the upper hinge guide roller is rollingly connected to the upper guide groove of the upper guide rail;

[0012] A center hinge, comprising a center hinge door mounting bracket and a center hinge roller mounting bracket, wherein the center hinge roller mounting bracket is provided with a center hinge guide roller, the center hinge guide roller being rotatably connected to the center guide groove of the center guide rail, and the center hinge roller mounting bracket is further connected to a center hinge load-bearing roller;

[0013] The lower hinge includes a lower hinge door mounting bracket, a lower hinge swing arm bracket, and a lower hinge roller mounting bracket. The lower hinge door mounting bracket and the lower hinge swing arm bracket are hinged. The lower hinge swing arm bracket and the lower hinge roller mounting bracket are hinged. The lower hinge swing arm bracket is connected to a lower hinge swing arm bracket guide roller. The lower hinge swing arm bracket guide roller matches the outer guide groove. The lower hinge roller mounting bracket is connected to a lower hinge roller bracket guide roller. The lower hinge roller bracket guide roller matches the inner guide groove.

[0014] Furthermore, the lower guide rail also includes a lower guide rail roller bearing plate, the top surface of the lower guide rail roller bearing plate constitutes a lower guide rail bearing surface, and the lower hinge roller bracket is connected to a lower hinge roller bracket load-bearing roller, and the lower hinge roller bracket load-bearing roller matches the lower guide rail bearing surface.

[0015] Furthermore, the lower guide rail outer guide groove and the lower guide rail inner guide groove are an integrally formed structure or a split structure.

[0016] Furthermore, the lower guide rail roller bearing plate is located directly below the inner guide groove or the outer guide groove of the lower guide rail.

[0017] Furthermore, the lower hinge door mounting bracket and the lower hinge swing arm bracket are connected through an assembly hole and can rotate relative to each other around the assembly hole to form a first rotation axis of the lower hinge. The lower hinge roller mounting bracket and the lower hinge swing arm bracket are connected through an assembly hole and can rotate relative to each other around the assembly hole to form a second rotation axis of the lower hinge.

[0018] Furthermore, the sliding door opening mechanism also includes a drive system, which includes an actuator component, and the actuator component includes an actuator motor and a winding wheel. The actuator motor and the winding wheel are transmission-connected, and the lower guide rail is also connected to a front guide wheel and a rear guide wheel. The pull wire of the winding wheel passes around the front guide wheel and the rear guide wheel. A connecting component is fixedly connected to the pull wire, and the connecting component is fixedly connected to the lower hinge pull wire bracket.

[0019] Furthermore, the connecting component is a shell, which includes a first sliding cavity and a second sliding cavity, a first sliding block is slidably connected in the first sliding cavity, and a second sliding block is slidably connected in the second sliding cavity, the first sliding block and the second sliding block are fixedly connected to the first free end and the second free end of the pull wire respectively, and a tensioning spring is also fixed to the outside of the first free end and the second free end of the pull wire.

[0020] The beneficial effects of the present invention are:

[0021] First, the opening mechanism has a simple structure, which enables the sliding door to occupy less chassis space when opened, allowing new energy vehicles to have more chassis space for battery design and installation, effectively improving their endurance.

[0022] Second, by setting the lower guide rail as an inner guide groove and an outer guide groove, the lower hinge can be folded and moved in the two guide grooves, so that the mechanism can realize the opening and closing of the sliding door while occupying a small space on the chassis;

[0023] Third, the sliding door opening mechanism can realize the automatic opening of the sliding door by connecting and cooperating with the drive system, and can always keep the pull wire in a tensioned state, making the sliding door smoother when opening automatically. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the lower guide rail structure of a known sliding door.

[0025] Figure 2 It is a schematic diagram of the structural arrangement of the present invention.

[0026] Figure 3 It is a schematic diagram of the upper hinge and upper guide rail structure of the present invention.

[0027] Figure 4 It is a schematic diagram of the hinge and middle guide rail structure of the present invention.

[0028] Figure 5 It is a schematic diagram of the lower hinge and lower guide rail structure of the present invention.

[0029] Figure 6 This is a state diagram of the sliding door of the present invention when it is open;

[0030] Figure 7 This is a state diagram of the sliding door of the present invention when it is closed;

[0031] Figure 8 Schematic diagram of the drive system of the present invention.

[0032] Figure 9 Schematic diagram of the internal structure of the drive system of the present invention.

[0033] Figure 10 This is a cross-sectional view of the wire tensioning mechanism of the drive system of the present invention.

[0034] Figure 11 Schematic diagram of the assembly of the drive system and the lower guide rail of the present invention.

[0035] Figure 12 For the present invention Figure 11 Schematic diagram of the other direction;

[0036] Figure 13 is a partial enlarged view of the lower hinge of the present invention;

[0037] Figure 14 A diagram showing the connection structure of the lower hinge and the actuator assembly of the present invention;

[0038] In the figure: 1. body; 2. door opening on the body side; 3. door; 4. upper guide rail; 5. middle guide rail; 6. lower guide rail; 7. upper hinge; 8. middle hinge; 9. lower hinge; 10. upper hinge door mounting bracket; 11. upper hinge roller mounting bracket; 12. upper hinge guide roller; 13. middle hinge door mounting bracket; 14. middle hinge roller mounting bracket; 15. middle hinge guide roller; 16. middle hinge load-bearing roller; 17. middle hinge first rotation axis; 18. lower hinge door mounting bracket; 19. lower hinge swing arm bracket; 20. lower hinge roller mounting bracket; 21. lower hinge roller bracket guide roller; 22. lower hinge 1. Roller bracket load-bearing roller; 23. Lower hinge swing arm bracket guide roller; 24. Lower hinge first rotation axis; 25. Lower hinge second rotation axis; 26. Actuator motor; 27. Outer guide groove; 28. Inner guide groove; 29. Lower guide rail roller bearing plate; 30. Wire reel; 31. Actuator cable; 32. Connecting component; 33. Actuator flexible shaft; 34. Actuator guide wheel mounting bracket; 35. Actuator cable sleeve; 36. Controller; 37. Rear guide wheel; 38. Front guide wheel; 39. Tensioning spring; 40. Lower guide rail clamp; 41. Lower hinge cable bracket; 42. First sliding block; 43. Second sliding block. DETAILED DESCRIPTION

[0039] The present invention will be further described below with reference to the accompanying drawings and examples:

[0040] See also Figure 2-13 A sliding door opening mechanism is shown, comprising:

[0041] A guide rail assembly, the guide rail assembly comprising:

[0042] an upper guide rail 4 disposed on an upper portion of the vehicle body side door opening 2 and including an upper guide groove;

[0043] A middle guide rail 5 , which is arranged in the middle of the door opening 2 on the vehicle body side and includes a middle guide groove and a middle bearing surface;

[0044] The lower guide rail 6 is arranged at the lower portion of the door opening 2 on the vehicle body side, and includes an inner guide groove 28 and an outer guide groove 27. The outer guide groove 27 is composed of a straight line segment at the rear end and an arc segment at the front end, and the inner guide groove 28 is composed of a straight line segment; or the outer guide groove 27 is composed of a straight line segment, and the inner guide groove 28 is composed of a straight line segment at the rear end and an arc segment at the front end;

[0045] A hinge assembly, the hinge assembly comprising:

[0046] The upper hinge 7 includes an upper hinge door mounting bracket 10 and an upper hinge roller mounting bracket 11. The upper hinge roller mounting bracket 11 is provided with an upper hinge guide roller 12. The upper hinge guide roller 12 is rollingly connected to the upper guide groove of the upper guide rail 4.

[0047] The center hinge 8 includes a center hinge door mounting bracket 13 and a center hinge roller mounting bracket 14. The center hinge roller mounting bracket 14 is provided with a center hinge guide roller 15. The center hinge guide roller 15 is rotatably connected to the center guide groove of the center guide rail 5. The center hinge roller mounting bracket 14 is also connected to a center hinge load-bearing roller 16.

[0048] The lower hinge 9 includes a lower hinge door mounting bracket 18, a lower hinge swing arm bracket 19, and a lower hinge roller mounting bracket 20. The lower hinge door mounting bracket 18 and the lower hinge swing arm bracket 19 are hinged to each other. The lower hinge swing arm bracket 19 and the lower hinge roller mounting bracket 20 are hinged to each other. The lower hinge swing arm bracket 19 is connected to a lower hinge swing arm bracket guide roller 23, and the lower hinge swing arm bracket guide roller 23 matches the outer guide groove 27. The lower hinge roller mounting bracket 20 is connected to a lower hinge roller bracket guide roller 21, and the lower hinge roller bracket guide roller 21 matches the inner guide groove 28.

[0049] When the present invention is in use, the upper hinge 7 is fixedly mounted on the upper part of the vehicle door 3 through the upper hinge door mounting bracket 10, the middle hinge 8 is fixedly mounted on the middle part of the vehicle door 3 through the middle hinge door mounting bracket 13, and the lower hinge 9 is fixed to the lower part of the vehicle door 3 through the lower hinge door mounting bracket 18. In addition, the lower hinge swing arm bracket guide roller 23 is rotatably connected to the outer guide groove 27 of the lower guide rail 6, and the lower hinge roller bracket guide roller 21 is connected to the inner guide groove 28 of the lower guide rail 6. When the vehicle door 3 is manually pulled in the door opening direction, the vehicle door 3 will drive the upper hinge 7, the middle hinge 8 and the lower hinge 9 to move in the upper guide rail 4, the middle guide rail 5 and the lower guide rail 6 in the door opening direction, thereby realizing the opening action of the vehicle door 3, as shown in FIG. Figure 6As shown, under the constraints of the outer guide groove 27 of the lower guide rail 6 and the inner guide groove 28 of the lower guide rail 6, the lower hinge 9 moves in the direction of opening the door and also moves toward the outside of the vehicle during the door opening process, thereby achieving the movement clearance requirement between the door 3 and the vehicle body 1 during the opening process. When the door 3 is closing, its closing process is opposite to the opening process of the door 3, as shown in FIG. Figure 7 As shown, the lower hinge swing arm bracket of the lower hinge folds, causing the door to move toward the vehicle body and the front of the vehicle simultaneously, ultimately closing the door. It should be noted that the outer guide groove 27 is composed of a straight segment at the rear end and an arc segment at the front end, while the inner guide groove 28 is composed of a straight segment. Alternatively, the outer guide groove 27 is composed of a straight segment, while the inner guide groove 28 is composed of a straight segment at the rear end and an arc segment at the front end; both structures achieve the same effect.

[0050] Furthermore, the lower guide rail 6 further includes a lower guide rail roller bearing plate 29, the top surface of which constitutes a lower guide rail bearing surface. The lower hinge roller bracket is connected to a lower hinge roller bracket load-bearing roller 22, and the lower hinge roller bracket load-bearing roller 22 matches the lower guide rail bearing surface. Furthermore, the lower guide rail 6 of the present invention further includes a lower guide rail roller bearing plate 29, the top of which constitutes a lower guide rail bearing surface, which can effectively match and support the lower hinge bracket load-bearing roller 22.

[0051] Furthermore, the outer guide groove 27 and the inner guide groove 28 of the lower guide rail 6 can be integrally formed or split. Specifically, the lower guide rail 6 of the present invention is integrally formed, which makes production more convenient. Specifically, reinforcing ribs can be provided on the outer walls of the outer guide groove 27 and the inner guide groove 28 to increase their strength. Of course, the outer guide groove 27 and the inner guide groove 28 of the lower guide rail 6 can also be split.

[0052] Furthermore, the lower guide rail roller bearing plate 29 is located directly below the inner guide groove 28 of the lower guide rail 6 or directly below the outer guide groove 27. Specifically, the lower guide rail roller bearing plate 29 of the present invention is specifically located in the area directly below the inner guide groove 28 of the lower guide rail 6 or the area directly below the outer guide groove 27.

[0053] Furthermore, the lower hinge door mounting bracket 18 and the lower hinge swing arm bracket 19 are connected through an assembly hole and can rotate relative to each other about the assembly hole, forming a lower hinge first rotation axis 24. The lower hinge roller mounting bracket 20 and the lower hinge swing arm bracket 19 are connected through an assembly hole and can rotate relative to each other about the assembly hole, forming a lower hinge second rotation axis 25. The present invention hinges the door 3 mounting bracket and the lower hinge swing arm bracket 19 through the first rotation axis, while the lower hinge roller mounting bracket 20 and the lower hinge swing arm bracket 19 through the second rotation axis. This hinged structure is simpler in construction and more convenient to maintain.

[0054] Furthermore, the sliding door opening mechanism also includes a drive system, which includes an actuator component, and the actuator component includes an actuator motor 26 and a winding wheel 30. The actuator motor 26 and the winding wheel 30 are transmission-connected, and the lower guide rail 6 is also connected to a front guide wheel 38 and a rear guide wheel 37. The pull wire of the winding wheel 30 passes around the front guide wheel 38 and the rear guide wheel 37. A connecting component 32 is fixedly connected to the pull wire, and the connecting component 32 is fixedly connected to the lower hinge pull wire bracket 41. Specifically, the sliding door of the present invention can also be opened and closed electrically. Specifically, an actuator component and a controller 36 are installed on the lower guide rail 6. The actuator motor 26 and the lower guide rail 6 are firmly connected through the lower guide rail clamp 40. The actuator component transmits power through the actuator motor 26 and the winding wheel 30. The specific transmission method can be a worm gear method or a gear transmission method. The controller 36 controls the actuator motor 26 to drive the winding wheel 30 to rotate. When the winding wheel 30 rotates, the pull wire thereon will be wound. When the pull wire is wound, the connecting component on the pull wire will drive the lower hinge pull wire bracket 41 to move, thereby realizing the electric opening of the sliding door. When the electric door needs to be closed, the above process can be directly reversed.

[0055] Furthermore, the connecting component 32 is a shell, and the shell includes a first sliding cavity and a second sliding cavity. A first sliding block 42 is slidably connected to the first sliding cavity, and a second sliding block 43 is slidably connected to the second sliding cavity. The first sliding block 42 and the second sliding block 43 are fixedly connected to the first free end and the second free end of the pull wire, respectively. A tensioning spring 39 is also fixed to the outside of the first free end and the second free end of the pull wire. Specifically, in order to prevent the pull wire from becoming loose during long-term use and affecting the sliding effect of the sliding door, the connecting component of the present invention is a shell. The two sliding blocks in the shell can slide in the sliding cavity. If looseness occurs, they can move toward the bottom of the sliding cavity under the action of the tensioning spring to keep the pull wire in a tensioned state.

[0056] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A sliding door opening mechanism, characterized in that: include: A guide rail assembly, the guide rail assembly comprising: an upper guide rail disposed at an upper portion of the vehicle body side door opening and comprising an upper guide groove; a middle guide rail, which is arranged in the middle of the door opening on the vehicle body side and includes a middle guide groove and a middle bearing surface; A lower guide rail, which is arranged at the lower part of the door opening on the vehicle body side, and includes an inner guide groove and an outer guide groove, wherein the outer guide groove is composed of a straight line segment at the rear end and an arc segment at the front end, and the inner guide groove is composed of a straight line segment; or the outer guide groove is composed of a straight line segment, and the inner guide groove is composed of a straight line segment at the rear end and an arc segment at the front end; A hinge assembly, the hinge assembly comprising: An upper hinge, comprising an upper hinge door mounting bracket and an upper hinge roller mounting bracket, wherein the upper hinge roller mounting bracket is provided with an upper hinge guide roller, and the upper hinge guide roller is rollingly connected to the upper guide groove of the upper guide rail; A center hinge, comprising a center hinge door mounting bracket and a center hinge roller mounting bracket, wherein the center hinge roller mounting bracket is provided with a center hinge guide roller, the center hinge guide roller being rotatably connected to the center guide groove of the center guide rail, and the center hinge roller mounting bracket is further connected to a center hinge load-bearing roller; The lower hinge includes a lower hinge door mounting bracket, a lower hinge swing arm bracket, and a lower hinge roller mounting bracket. The lower hinge door mounting bracket and the lower hinge swing arm bracket are hinged. The lower hinge swing arm bracket and the lower hinge roller mounting bracket are hinged. The lower hinge swing arm bracket is connected to a lower hinge swing arm bracket guide roller. The lower hinge swing arm bracket guide roller matches the outer guide groove. The lower hinge roller mounting bracket is connected to a lower hinge roller bracket guide roller. The lower hinge roller bracket guide roller matches the inner guide groove.

2. The sliding door opening mechanism according to claim 1, wherein: The lower guide rail also includes a lower guide rail roller bearing plate, the top surface of the lower guide rail roller bearing plate constitutes a lower guide rail bearing surface, the lower hinge roller bracket is connected to a lower hinge roller bracket load-bearing roller, and the lower hinge roller bracket load-bearing roller matches the lower guide rail bearing surface.

3. The sliding door opening mechanism according to claim 2, wherein: The lower guide rail outer guide groove and the lower guide rail inner guide groove are an integrally formed structure or a split structure.

4. The sliding door opening mechanism according to claim 3, wherein: The lower guide rail roller bearing plate is located directly below the inner guide groove or the outer guide groove of the lower guide rail.

5. The sliding door opening mechanism according to claim 4, wherein: The lower hinge door mounting bracket and the lower hinge swing arm bracket are connected through an assembly hole and can rotate relative to each other around the assembly hole to form a first rotation axis of the lower hinge. The lower hinge roller mounting bracket and the lower hinge swing arm bracket are connected through an assembly hole and can rotate relative to each other around the assembly hole to form a second rotation axis of the lower hinge.

6. The sliding door opening mechanism according to claim 5, wherein: The sliding door opening mechanism also includes a drive system, which includes an actuator component, and the actuator component includes an actuator motor and a winding wheel. The actuator motor and the winding wheel are connected in a transmission manner. The lower guide rail is also connected to a front guide wheel and a rear guide wheel. The pull wire of the winding wheel passes around the front guide wheel and the rear guide wheel. A connecting component is fixedly connected to the pull wire, and the connecting component is fixedly connected to the lower hinge pull wire bracket.

7. The sliding door opening mechanism according to claim 6, wherein: The connecting component is a shell, which includes a first sliding cavity and a second sliding cavity. A first sliding block is slidably connected in the first sliding cavity, and a second sliding block is slidably connected in the second sliding cavity. The first sliding block and the second sliding block are fixedly connected to the first free end and the second free end of the pull wire respectively, and a tensioning spring is also fixed to the outside of the first free end and the second free end of the pull wire.

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