A smooth bar slide assembly and double-opening plug sliding door system

Abstract

The present invention relates to the technical field of sliding doors, and in particular to a smooth bar slide assembly and a double-opening sliding door system. The smooth bar slide assembly includes a base for fixing on a door frame, a smooth bar is provided on the base, and sliding brackets are provided at both ends of the smooth bar. The two sliding brackets move back and forth on the base along the inward and outward directions of the sliding door. An active slide and a driven slide are sleeved on the smooth bar, and a flexible member is connected between the two slides to enable the two to move synchronously. There are two smooth bars arranged in parallel and spaced apart, and the active slide and the driven slide each have two sliding holes. The two slides slide back and forth on the two smooth bars through their respective two sliding holes. Compared with the prior art, when the contact area between the smooth bar and the corresponding slide is the same, the present invention can shorten the length of the active slide and the driven slide, thereby reducing the length of the smooth bar and the base, so that the double-opening sliding door system can meet the air duct requirements of more car models.

Description

Technical Field

[0001] The present invention relates to the technical field of plug-and-sliding doors, and in particular to a smooth bar slide assembly and a double-opening plug-and-sliding door system. Background Art

[0002] Existing double-opening plug-in door systems include pneumatic plug-in doors and electric plug-in doors. Pneumatic plug-in doors use a cylinder to drive the opening and closing of the two doors, while electric plug-in doors use a motor and a screw-nut mechanism to drive the opening and closing of the two doors. Both pneumatic and electric plug-in doors require a smooth rod and slide assembly to transmit power to achieve the opening and closing of the doors.

[0003] A Chinese utility model patent, granted with the authorization number CN213869454U, discloses a sliding door assembly comprising a base for fixing to a door frame. The base is provided with a parallel sliding rod (i.e., a smooth rod) and a pull rod. Sliding brackets are mounted at each end of the sliding rod, and the sliding brackets reciprocate on the base in the inward and outward directions of the sliding door. Two sliding sleeves (i.e., slide cylinders) are mounted on the sliding rod. The two sliding brackets are each provided with a drawing wheel, which passes through the two drawing wheels and connects to the two sliding sleeves, allowing the two sliding sleeves to move synchronously. A guide wheel is rotatably mounted on one of the sliding sleeves, which is positioned within a guide groove on the base. The two sliding sleeves are fixedly connected to two door panels (car doors) via a door carrier. A drive cylinder is fixed to the pull rod, and the telescopic rod of the drive cylinder is fixedly connected to the sliding sleeves with the guide wheels. When the telescopic rod of the drive cylinder is extended or retracted, the two sliding sleeves reciprocate on the slide rods, thereby opening and closing the two door panels.

[0004] In the above technology, only one sliding rod is provided. In order to ensure the stability of the sliding sleeve when sliding on the sliding rod, the sliding sleeve needs to be designed to be longer. Under the condition of meeting the door opening, the sliding rod and the base need to be designed to be longer. Due to the limitation of the air duct space on the vehicle body, there are certain limitations in the application of the Sierra door assembly. Summary of the Invention

[0005] The purpose of the present invention is to provide a smooth rod slide assembly to solve the problem in the prior art that in order to ensure the stability of the sliding sleeve when sliding on the sliding rod, the sliding sleeve is designed to be longer, resulting in the sliding rod and the base needing to be designed to be longer, causing certain limitations in the application of the sliding door assembly; the purpose of the present invention is also to provide a double-opening sliding door system to solve the above problems.

[0006] To achieve the above-mentioned purpose, the technical solution of the smooth rod slide tube assembly of the present invention is:

[0007] The light bar slide assembly includes a base for fixing on the door frame, a light bar is provided on the base, and sliding brackets are provided at both ends of the light bar. The two sliding brackets move back and forth on the base along the inward and outward directions of the Sierra door. An active slide and a driven slide are sleeved on the light bar. A flexible part is connected between the two slides to enable the two to move synchronously. There are two light bars arranged in parallel at intervals. The active slide and the driven slide both have two sliding holes. The two slides slide back and forth on the two light bars through their respective two sliding holes.

[0008] The beneficial effect is that by providing two smooth bars on the base, the active and passive slides slide back and forth on the two smooth bars through their respective sliding holes. Compared to the prior art, while maintaining the same contact area between the smooth bars and the corresponding slides, the present invention can shorten the lengths of the active and passive slides, thereby reducing the lengths of the smooth bars and base, allowing the double-sliding plug door system to meet the air duct requirements of a wider range of vehicle models. Furthermore, the dual smooth bar design provides greater stability for the active and passive slides during sliding, thereby ensuring stability during the opening and closing of the double-sliding plug door system.

[0009] As a further improvement, pulleys are respectively provided on the two sliding brackets, a first clamping member is fixed on the lower side of the active slide, two second clamping members are fixed on the upper side of the driven slide, the middle position of the flexible member is fixed on the first clamping member, and the two ends of the flexible member are respectively passed around the two pulleys and fixed on the two second clamping members; wherein, at least one second clamping member is fixed on the upper side of the driven slide in an adjustable position along the length direction of the light bar.

[0010] The beneficial effect is that the distance between the two second clamping members can be adjusted by adjusting the position of the second clamping member on the driven slide, thereby adjusting the tension of the flexible member.

[0011] As a further improvement, the active slide and the driven slide both have an installation groove, and a fixed plane is provided on the groove edge of the installation groove. The first clamping member and the second clamping member both include a clamping plate and a clamping block. One side of the clamping block is connected to the clamping plate to form a cantilever structure of the clamping block, and a clamping groove is formed between the clamping plate and the clamping block; the clamping block is in the installation groove, and when the clamping plate is fixed on the fixed plane, the clamping plate and the clamping block clamp the flexible member in the clamping groove.

[0012] The beneficial effect is that the structures of the active slide cylinder and the driven slide cylinder are made more compact by sinking the clamping blocks of the first clamping member and the second clamping member into the installation groove.

[0013] As a further improvement, the flexible member is a synchronous belt, and the groove wall of the clamping groove is provided with a tooth groove that cooperates with the belt teeth of the synchronous belt.

[0014] The beneficial effect is that the synchronous belt makes little noise when moving, which is beneficial to improving user experience, and the grooves that match the belt teeth of the synchronous belt are provided on the groove wall of the clamping groove, which is beneficial to ensuring the stability of the synchronous belt after it is fixed.

[0015] As a further improvement, a threaded hole is provided on the fixing plane, and a long fixing hole extending along the length direction of the optical rod is provided on the clamping plate.

[0016] The beneficial effect is that when adjusting the position of the splint, first loosen the fixing bolts, then move the splint, and when the splint is moved into place on the fixed plane, tighten the fixing bolts again to achieve position adjustment of the splint on the corresponding slide.

[0017] As a further improvement, the clamping block of the second clamping member is a semi-cylindrical structure, a light hole is provided on the clamping block of one of the two second clamping members, and a threaded hole is provided on the clamping block of the other of the two second clamping members, and an adjusting bolt threadedly connected to the threaded hole is passed through the light hole.

[0018] The beneficial effect is that the distance between the two clamping parts can be adjusted by screwing the adjusting bolt, which is convenient to operate.

[0019] As a further improvement, the active slide is rotatably equipped with a guide wheel, an upper guide rail and a lower guide rail are provided in the middle position of the base, a guide plate is provided on one side of the upper guide rail, and the guide plate has a guide groove that cooperates with the guide wheel to enable the car door to move inward and outward; the two light bars are rotatably equipped with support wheels that roll with the upper guide rail and the lower guide rail, and the support wheels are located between the active slide and the driven slide.

[0020] The beneficial effect is that due to the long length of the optical bar, the upper and lower guide rails in the middle of the base cooperate with the support wheels to support the middle position of the optical bar, preventing the optical bar from slight bending deformation, and facilitating the smooth sliding of the active slide and the driven slide on the optical bar. In addition, the upper guide rail can also support the guide plate to ensure the position accuracy of the guide groove, which facilitates the smooth movement of the guide wheel within the guide groove.

[0021] As a further improvement, the lengths of the two sliding holes of the active slide cylinder and the lengths of the two sliding holes of the driven slide cylinder are the same.

[0022] The beneficial effect is that such a design ensures that the driving slide and the driven slide are subjected to uniform force, thereby increasing the service life of the two slides.

[0023] As a further improvement, a linear bearing is provided in the sliding hole.

[0024] The beneficial effect is that such a design is conducive to the smooth and stable sliding of the active slide and the driven slide on the optical bar.

[0025] To achieve the above object, the technical solution of the double-opening plug sliding door system of the present invention is:

[0026] A double-opening Sierra door system includes a light bar slide assembly and two doors. The light bar slide assembly includes a base for fixing to a door frame. A light bar is provided on the base. Sliding brackets are provided at both ends of the light bar. The two sliding brackets move back and forth on the base along the inward and outward directions of the Sierra door. An active slide and a driven slide are sleeved on the light bar. A flexible member is connected between the two slides to enable the two to move synchronously. Two light bars are arranged in parallel at intervals. The active slide and the driven slide each have two sliding holes. The two slides slide back and forth on the two light bars through their respective two sliding holes.

[0027] The beneficial effect is that by providing two smooth bars on the base, the active and passive slides slide back and forth on the two smooth bars through their respective sliding holes. Compared to the prior art, while maintaining the same contact area between the smooth bars and the corresponding slides, the present invention can shorten the lengths of the active and passive slides, thereby reducing the lengths of the smooth bars and base, allowing the double-sliding plug door system to meet the air duct requirements of a wider range of vehicle models. Furthermore, the dual smooth bar design provides greater stability for the active and passive slides during sliding, thereby ensuring stability during the opening and closing of the double-sliding plug door system.

[0028] As a further improvement, pulleys are respectively provided on the two sliding brackets, a first clamping member is fixed on the lower side of the active slide, two second clamping members are fixed on the upper side of the driven slide, the middle position of the flexible member is fixed on the first clamping member, and the two ends of the flexible member are respectively passed around the two pulleys and fixed on the two second clamping members; wherein, at least one second clamping member is fixed on the upper side of the driven slide in an adjustable position along the length direction of the light bar.

[0029] The beneficial effect is that by adjusting the position of at least one second clamping member on the driven slide, the distance between the two second clamping members can be adjusted, thereby adjusting the tension of the flexible member.

[0030] As a further improvement, the active slide and the driven slide both have an installation groove, and a fixed plane is provided on the groove edge of the installation groove. The first clamping member and the second clamping member both include a clamping plate and a clamping block. One side of the clamping block is connected to the clamping plate to form a cantilever structure of the clamping block, and a clamping groove is formed between the clamping plate and the clamping block; the clamping block is in the installation groove, and when the clamping plate is fixed on the fixed plane, the clamping plate and the clamping block clamp the flexible member in the clamping groove.

[0031] The beneficial effect is that the structures of the active slide cylinder and the driven slide cylinder are made more compact by sinking the clamping blocks of the first clamping member and the second clamping member into the installation groove.

[0032] As a further improvement, the flexible member is a synchronous belt, and the groove wall of the clamping groove is provided with a tooth groove that cooperates with the belt teeth of the synchronous belt.

[0033] The beneficial effects are: the synchronous belt makes little noise when moving, which is beneficial to improving user experience; and the tooth grooves that match the belt teeth of the synchronous belt are provided on the groove wall of the clamping groove, which is beneficial to ensuring the stability of the synchronous belt after it is fixed.

[0034] As a further improvement, a threaded hole is provided on the fixing plane, and a long fixing hole extending along the length direction of the optical rod is provided on the clamping plate.

[0035] The beneficial effect is that when adjusting the position of the splint, first loosen the fixing bolts, then move the splint, and when the splint is moved into place on the fixed plane, tighten the fixing bolts again to achieve position adjustment of the splint on the corresponding slide.

[0036] As a further improvement, the clamping block of the second clamping member is a semi-cylindrical structure, a light hole is provided on the clamping block of one of the two second clamping members, and a threaded hole is provided on the clamping block of the other of the two second clamping members, and an adjusting bolt threadedly connected to the threaded hole is passed through the light hole.

[0037] The beneficial effect is that the distance between the two clamping parts can be adjusted by screwing the adjusting bolt, which is convenient to operate.

[0038] As a further improvement, the active slide is rotatably equipped with a guide wheel, an upper guide rail and a lower guide rail are provided in the middle position of the base, a guide plate is provided on one side of the upper guide rail, and the guide plate has a guide groove that cooperates with the guide wheel to enable the car door to move inward and outward; the two light bars are rotatably equipped with support wheels that roll with the upper guide rail and the lower guide rail, and the support wheels are located between the active slide and the driven slide.

[0039] The beneficial effect is that due to the long length of the optical bar, the upper and lower guide rails in the middle of the base cooperate with the support wheels to support the middle position of the optical bar, preventing the optical bar from slight bending deformation, and facilitating the smooth sliding of the active slide and the driven slide on the optical bar. In addition, the upper guide rail can also support the guide plate to ensure the position accuracy of the guide groove, which facilitates the smooth movement of the guide wheel within the guide groove.

[0040] As a further improvement, the lengths of the two sliding holes of the active slide cylinder and the lengths of the two sliding holes of the driven slide cylinder are the same.

[0041] The beneficial effect is that such a design ensures that the driving slide and the driven slide are subjected to uniform force, thereby increasing the service life of the two slides.

[0042] As a further improvement, a linear bearing is provided in the sliding hole.

[0043] The beneficial effect is that such a design is conducive to the smooth and stable sliding of the active slide and the driven slide on the optical bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic structural diagram of the double-opening plug sliding door system of the present invention;

[0045] Figure 2 for Figure 1 Schematic diagram of the structure of the light rod slide assembly;

[0046] Figure 3 for Figure 2 Schematic diagram of the structure of the middle base, smooth bar and slide;

[0047] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0048] Figure 5 for Figure 4 Schematic diagram of the structure of the active slide;

[0049] Figure 6 for Figure 5 A structural diagram from another perspective;

[0050] Figure 7 for Figure 6 A schematic structural diagram of the first clamping member;

[0051] Figure 8 for Figure 4 Schematic diagram of the structure of the driven slide;

[0052] Figure 9 for Figure 8 Schematic diagram of the structure of the second clamping member.

[0053] In the figure: 11, door; 12, base; 13, lead screw; 14, connecting rod; 15, guide bar; 16, active slide; 17, driven slide; 18, drive motor; 19, door carrier; 20, synchronous belt; 21, sliding bracket; 22, guide plate; 23, guide groove; 24, guide wheel; 25, upper guide rail; 26, support wheel; 27, lower guide rail; 28, sliding hole; 29, linear bearing; 30, fixing plate; 31, first connecting seat; 32, third connecting seat; 33. First clamping member; 34. First mounting groove; 35. First fixing plane; 36. First clamping block; 37. First clamping groove; 38. First fixing long hole; 39. First clamping plate; 40. First tooth groove; 41. Second mounting groove; 42. Second clamping member; 43. Second connecting seat; 44. Second fixing plane; 45. Second clamping plate; 46. Second clamping block; 47. Second clamping groove; 48. Bolt through hole; 49. Second fixing long hole; 50. Second tooth groove. DETAILED DESCRIPTION

[0054] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0055] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0056] It should be noted that relational terms such as "first" and "second" that may appear are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, terms such as "include," "comprise," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, elements defined by the phrase "including a..." do not exclude the presence of other identical elements in the process, method, article, or device that includes the elements. In addition, the terms "front," "back," "up," "down," "left," and "right" are based on the orientation and positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device or component referred to must have a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] The features and performance of the present invention are further described in detail below with reference to the embodiments.

[0058] Example 1 of the double-opening plug sliding door system of the present invention:

[0059] like Figure 1 and Figure 2 As shown, the double-opening plug door system includes a smooth bar slide assembly and two doors 11. The smooth bar slide assembly includes a base 12 for fixing to the door frame. The base 12 is provided with a connecting rod 14 and a smooth bar 15 arranged in parallel. The base 12 is provided with sliding brackets 21 at each end. The two sliding brackets 21 move back and forth on the base 12 in the inward and outward directions of the plug door. The ends of the smooth bar 15 are fixed to the corresponding sliding brackets 21, and the ends of the connecting rod 14 are connected to the sliding brackets 21 via a driving arm and a connecting arm.

[0060] In this embodiment, in order to ensure the stability of the optical bar 15, an upper guide rail 25 and a lower guide rail 27 are provided in the middle of the base 12. Support wheels 26 are rotatably mounted on the two optical bars 15. The support wheels 26 are in rolling engagement with the upper guide rail 25 and the lower guide rail 27, and the support wheels 26 are located between the active slide 16 and the driven slide 17. Figure 4 and Figure 5 As shown, a fixed plate 30 is fixed on the active slide 16, and a guide wheel 24 is rotatably mounted on the fixed plate 30. A guide plate 22 is provided on one side of the upper guide rail 25, and the guide plate 22 has a guide groove 23 that cooperates with the guide wheel 24 to enable the vehicle door 11 to move inward and outward.

[0061] In this embodiment, a driving slide 16 and a driven slide 17 are sleeved on the optical bar 15 , and a synchronous belt 20 is connected between the two slides to synchronize the two slides. The synchronous belt 20 constitutes a flexible member.

[0062] like Figure 3 、 Figure 5 and Figure 8 As shown, two optical bars 15 are arranged in parallel and spaced apart. The active slide 16 and the driven slide 17 each have two sliding holes 28. The two slides slide back and forth on the two optical bars 15 through their respective sliding holes 28. While ensuring overall strength, the diameter of the two optical bars 15 is smaller than that of a single optical bar in the prior art.

[0063] In this embodiment, a linear bearing 29 is provided in the sliding hole 28 . This design is conducive to the stable sliding of the active slide 16 and the driven slide 17 on the optical bar 15 .

[0064] In this embodiment, the lengths of the two sliding holes 28 of the active slide 16 and the two sliding holes 28 of the driven slide 17 are the same. This design ensures that the active slide 16 and the driven slide 17 are subjected to uniform force when sliding, thereby increasing the service life of the two slides.

[0065] like Figure 2 As shown, a driving motor 18 is fixed on the connecting rod 14, and the driving shaft of the driving motor 18 is connected to the screw 13, and a nut is threadedly connected to the screw 13, and the nut is fixedly connected to the active slide 16; the driving motor 18 drives the screw 13 to rotate, so that the nut moves back and forth on the screw 13, and then the active slide 16 moves back and forth on the optical rod 15.

[0066] Since a synchronous belt 20 is connected between the active slide 16 and the driven slide 17, the driven slide 17 moves synchronously with the active slide 16. Figure 4 、 Figure 6 and Figure 8As shown, pulleys are respectively provided on the two sliding brackets 21, a first clamping member 33 is fixed to the lower side of the active slide 16, and two second clamping members 42 are fixed to the upper side of the driven slide 17. The middle position of the synchronous belt 20 is fixed to the first clamping member 33, and the two ends of the synchronous belt 20 are respectively passed around the two pulleys and fixed to the two second clamping members 42. Among them, the two second clamping members 42 are arranged at intervals and are fixed to the upper side of the driven slide 17 in an adjustable position along the length direction of the optical bar 15. With this design, the tension of the synchronous belt 20 can be adjusted by adjusting the distance between the two second clamping members 42.

[0067] like Figures 5 to 7 As shown, the active slide 16 is provided with a first connecting seat 31 and a third connecting seat 32. The first connecting seat 31 is connected to the door carrier 19, and the third connecting seat 32 is connected to the nut on the lead screw 13. The active slide 16 has a first mounting slot 34, with a first fixing surface 35 formed along its edge. The first clamping member 33 includes a first clamping plate 39 and a first clamping block 36. One side of the first clamping block 36 is connected to the first clamping plate 39, forming a cantilever structure. The first clamping plate 39 and the first clamping block 36 define a first clamping slot 37. The first clamping block 36 is located within the first mounting slot 34. When the first clamping plate 39 is fixed to the first fixing surface 35, the first clamping plate 39 and the first clamping block 36 clamp the synchronous belt 20 within the first clamping slot 37. The first clamping slot 37 has first tooth grooves 40 formed on the walls of the first clamping slot 37, which mate with the teeth of the synchronous belt 20 to ensure the stability of the synchronous belt 20 when clamped by the first clamping member 33.

[0068] In this embodiment, a threaded hole is provided on the first fixing plane 35 , and a first fixing long hole 38 extending along the length direction of the optical bar 15 is provided on the first clamping plate 39 .

[0069] like Figure 8 and Figure 9 As shown, the driven slide 17 is provided with a second connecting seat 43, which is connected to the door carrier 19. The driven slide 17 has a second mounting slot 41, with a second fixing surface 44 provided along its edge. The second clamping member 42 includes a second clamping plate 45 and a second clamping block 46. One side of the second clamping block 46 is connected to the second clamping plate 45, forming a cantilever structure. The second clamping plate 45 and the second clamping block 46 define a second clamping slot 47. The second clamping block 46 is located within the second mounting slot 41. When the second clamping plate 45 is fixed to the second fixing surface 44, the second clamping plate 45 and the second clamping block 46 clamp the synchronous belt 20 within the second clamping slot 47. The walls of the second clamping slot 47 are provided with second tooth grooves 50 that mate with the teeth of the synchronous belt 20 to ensure the stability of the synchronous belt 20 when clamped by the second clamping member 42.

[0070] In this embodiment, a threaded hole is provided on the second fixing plane 44 , and a second fixing long hole 49 extending along the length direction of the optical bar 15 is provided on the second clamping plate 45 .

[0071] In this embodiment, the second clamping block 46 is a semi-cylindrical structure. Both second clamping blocks 46 are provided with bolt holes 48. One of the bolt holes 48 is a plain hole, and the other is a threaded hole. An adjustment bolt (not shown) is threaded into the plain hole and engaged with the threaded hole. To adjust the tension of the timing belt 20, the fixing bolt in the second fixed slot 49 is first loosened. The adjusting bolt is then tightened to bring the two second clamping members 42 closer together. Once the timing belt 20 reaches the desired tension, the fixing bolt in the second fixed slot 49 is re-tightened. To prevent the head of the adjusting bolt from being exposed, the plain hole in the second clamping block 46 is countersunk.

[0072] In this embodiment, the axial length of the active slide 16 and the driven slide 17 along the light bar 15 is shortened from 180 mm to 140 mm, reducing the overall length by (180 - 140) * 2 = 80 mm. Given the same opening, the length of the light bar 15 and base 12 can be reduced, allowing the double-sliding plug door system to meet the air duct requirements of a wider range of vehicle models. Furthermore, the dual light bar design provides greater stability during the sliding of the active and driven slides, thereby ensuring the stability of the double-sliding plug door system during opening and closing.

[0073] Electric door opening: The door controller sends an opening signal to the drive motor 18. The drive motor 18 rotates the lead screw 13 through the coupling. The rotation of the lead screw 13 drives the nut to move. Since the nut is connected to the active slide 16, the active slide 16 moves under the drive of the nut. The guide wheel 24 on the active slide 16 moves within the guide groove 23 of the guide plate 22, ensuring that the active slide 16 moves according to the designed motion trajectory. When the active slide 16 is unable to move due to the force in the front-to-back direction of the vehicle body, the drive motor 18 drives the connecting rod 14 to move. The movement of the connecting rod 14 drives the sliding bracket 21 toward the outside of the vehicle, and the vehicle door 11 begins to open outward. When the connecting rod 14 reaches its limit, the vehicle door 11 stops moving outward. The nut continues to rotate, and the active slide 16 begins to move along the front-to-back direction of the vehicle body, causing the door 11 to move in this direction, thus opening the vehicle door 11.

[0074] Electric door closing: The door controller sends a door closing signal to the drive motor 18, and the drive motor 18 drives the screw 13 to rotate in the opposite direction through the coupling. The rotation of the screw 13 drives the nut to move, and the active slide 16 moves under the drive of the nut. The guide wheel 24 on the active slide 16 moves in the guide groove 23 of the guide plate 22 to ensure that the active slide 16 moves according to the designed motion trajectory. When the active slide 16 is forced to move in the inside and outside directions of the vehicle and cannot move, the drive motor 18 drives the door 11 to move horizontally. When the active slide 16 is forced to move in the front and rear directions of the vehicle body and cannot move, the connecting rod 14 starts to move, and the movement of the connecting rod 14 drives the sliding bracket 21 to move toward the inside of the vehicle. At this time, the door 11 starts to close toward the inside of the vehicle; when the connecting rod 14 runs to the dead point position, the door 11 no longer moves toward the inside of the vehicle, and the door is closed.

[0075] Example 2 of the double-opening plug sliding door system of the present invention:

[0076] The difference between this embodiment and embodiment 1 is that, in embodiment 1, the middle portion of the synchronous belt is fixed to the first clamping member, and the two ends of the synchronous belt are respectively passed over two pulleys and fixed to two second clamping members. In this embodiment, a single second clamping member is provided, and the two ends of the synchronous belt are respectively passed over two pulleys and fixed to the second clamping member.

[0077] Example 3 of the double-opening plug sliding door system of the present invention:

[0078] The difference between this embodiment and embodiment 1 is that, in embodiment 1, the first clamping member and the second clamping member each comprise a clamping plate and a clamping block, with a clamping groove formed between the clamping plate and the clamping block; the clamping block is located within the mounting groove, and when the clamping plate is fixed to a fixed surface, the clamping plate and the clamping block clamp the flexible member within the clamping groove. In this embodiment, the first clamping member and the second clamping member are both clamping plates, and both the driving slide and the driven slide have tooth grooves that mate with the teeth of the synchronous belt. When the clamping plates are fixed to the corresponding slides, the clamping plates clamp the synchronous belt to the slides.

[0079] Example 4 of the double-opening plug sliding door system of the present invention:

[0080] The difference between this embodiment and embodiment 1 is that, in embodiment 1, the flexible member is a synchronous belt, while in this embodiment, the flexible member is a steel wire. In other embodiments, the flexible member is a steel chain.

[0081] Example 5 of the double-opening plug sliding door system of the present invention:

[0082] The difference between this embodiment and embodiment 1 is that, in embodiment 1, a threaded hole is provided on the fixing plane, a long fixing hole is provided on the clamping plate extending along the length of the optical rod, and the clamping plate is fixed with a bolt. In this embodiment, a stud is provided on the fixing plane, a long fixing hole is provided on the clamping plate extending along the length of the optical rod, and the clamping plate is fixed with a nut.

[0083] Example 6 of the double-opening plug sliding door system of the present invention:

[0084] This embodiment differs from Example 1 in that, in Example 1, the clamping block of one of the two second clamping members is provided with a clear hole, while the clamping block of the other of the two second clamping members is provided with a threaded hole, through which an adjustment bolt threadedly engages. In this embodiment, both second clamping members are provided with a clear hole, through which an adjustment bolt passes, and a nut threadedly engages the adjustment bolt, which is used to adjust the distance between the two clamping members by tightening the nut. In other embodiments, the structure of the two second clamping members is identical to that of the first clamping member, and the distance between the two second clamping members is adjusted using an external tool.

[0085] An embodiment of the smooth bar slide assembly of the present invention has the same structure as the smooth bar slide assembly of any one of embodiments 1 to 6 of the above-mentioned double-opening plug sliding door system, and will not be repeated here.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A light bar slide assembly, comprising a base (12) for fixing on a door frame, a light bar (15) being provided on the base (12), a sliding bracket (21) being provided at each end of the light bar (15), the two sliding brackets (21) being reciprocating on the base (12) along the inward and outward directions of the plug door, an active slide (16) and a driven slide (17) being sleeved on the light bar (15), a flexible member being connected between the two slides to enable the two to move synchronously, characterized in that: Two optical bars (15) are arranged in parallel and spaced apart. The active slide cylinder (16) and the driven slide cylinder (17) both have two sliding holes (28). The two slide cylinders slide back and forth on the two optical bars (15) through their own two sliding holes (28).

2. The light bar slide assembly according to claim 1, characterized in that: Pulleys are respectively provided on the two sliding brackets (21), a first clamping member (33) is fixed on the lower side of the active slide (16), two second clamping members (42) are fixed on the upper side of the driven slide (17), the middle position of the flexible member is fixed on the first clamping member (33), and the two ends of the flexible member are respectively passed around the two pulleys and fixed on the two second clamping members (42); wherein, at least one second clamping member (42) is fixed on the upper side of the driven slide (17) in an adjustable position along the length direction of the optical bar (15).

3. The light bar slide assembly according to claim 2, characterized in that: The active slide (16) and the driven slide (17) both have mounting grooves, and a fixed plane is provided on the groove edge of the mounting groove. The first clamping member (33) and the second clamping member (42) both include a clamping plate and a clamping block. One side of the clamping block is connected to the clamping plate so that the clamping block forms a cantilever structure, and a clamping groove is formed between the clamping plate and the clamping block. The clamping block is in the mounting groove, and when the clamping plate is fixed on the fixed plane, the clamping plate and the clamping block clamp the flexible member in the clamping groove.

4. The smooth rod slide assembly according to claim 3, characterized in that: The flexible member is a synchronous belt (20), and a groove wall of the clamping groove is provided with a tooth groove that matches the belt teeth of the synchronous belt (20).

5. The smooth rod slide assembly according to claim 3 or 4, characterized in that: The fixing plane is provided with a threaded hole, and the clamping plate is provided with a fixing long hole extending along the length direction of the light bar (15).

6. The smooth rod slide assembly according to claim 3 or 4, characterized in that: The clamping block of the second clamping member (42) is a semi-cylindrical structure. A light hole is provided on the clamping block of one of the two second clamping members (42), and a threaded hole is provided on the clamping block of the other of the two second clamping members (42). An adjusting bolt threadedly connected to the threaded hole is passed through the light hole.

7. The smooth rod slide assembly according to any one of claims 1 to 4, characterized in that: The active slide (16) is rotatably equipped with a guide wheel (24), an upper guide rail (25) and a lower guide rail (27) are provided in the middle of the base (12), a guide plate (22) is provided on one side of the upper guide rail (25), and the guide plate (22) has a guide groove (23) that cooperates with the guide wheel (24) to enable the door (11) to move inward and outward; the two light bars (15) are rotatably equipped with support wheels (26) that roll with the upper guide rail (25) and the lower guide rail (27), and the support wheels (26) are located between the active slide (16) and the driven slide (17).

8. The smooth rod slide assembly according to any one of claims 1 to 4, characterized in that: The lengths of the two sliding holes (28) of the active slide cylinder (16) and the lengths of the two sliding holes (28) of the driven slide cylinder (17) are the same.

9. The smooth rod slide assembly according to any one of claims 1 to 4, characterized in that: A linear bearing (29) is provided in the sliding hole (28).

10. A double-opening plug sliding door system, comprising a light bar slide assembly and two doors (11), characterized in that: The smooth rod slide assembly is the smooth rod slide assembly according to any one of claims 1 to 9.

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