Automobile seat sliding rail and automobile

Abstract

The utility model discloses an automobile seat slide rail and an automobile, the automobile seat slide rail comprises a slide rail and a plurality of rotating shafts, the plurality of rotating shafts are sequentially installed on the slide rail through a supporting seat along the length direction of the slide rail, two adjacent rotating shafts are connected with each other, a slide core is installed on the slide rail and is movably connected with the rotating shafts, and the slide rail is connected with the rotating shafts. The rotating shaft rotates to drive the sliding core to move in the axial direction of the rotating shaft. According to the utility model, the sectional rotating shaft structure is matched with the sliding rail, so that the deformation of the rotating shaft is reduced, the length of the sliding rail can be increased, the strength of the sliding rail is improved, the limitation of the long worm on the length of the sliding rail due to large deformation is solved, and the quick starting, stable movement and accurate stroke adjustment can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to an automotive seat slide rail and an automotive. Background Technology

[0002] As the carrier of occupants in a car, the safety of the seat itself is very important. The seat rail not only plays a role in adjusting the seat back and forth along the length of the car, but also serves as an intermediate connecting part between the seat and the floor, so the structural strength requirements of the rail itself are also very high.

[0003] Most existing electric slide rails use a worm gear drive system. Limited by the strength of the worm, the adjustment range of the slide rail is generally within 300mm. The longer the worm, the greater the deformation, and the more difficult it is to manufacture the slide rail itself. Slide rails with a stroke of 300mm-500mm are already considered long. To ensure the strength of the slide rail itself and reduce worm deformation, the slide rail body and worm are generally made of high-strength metal materials, which is quite difficult to manufacture. Therefore, ultra-long slide rails with a stroke of over 500mm are rare. Thus, the length of worm gear slide rails is limited, and the slide rail stroke cannot be too long. To solve the problems of manufacturing difficulty and deformation of long worms, there is an ultra-long slide rail on the market driven by a pull cable. However, the pull cable must always be kept taut and straight. After long-term use, problems such as slow adjustment start-up, jerking, and inaccurate adjustment stroke can easily occur due to the loosening of the pull cable. Utility Model Content

[0004] The present invention aims to at least solve the technical problems existing in the prior art, such as the short stroke of the slide rail driven by worm gear due to the deformation of the worm, and the slow start, jerking and inaccurate stroke adjustment of the long slide rail driven by wire due to the loosening of the wire after long-term use.

[0005] Therefore, one objective of this utility model is to provide an automotive seat slide rail, which includes a slide rail and multiple rotating shafts. The multiple rotating shafts are sequentially mounted on the slide rail along its length direction via support seats. Adjacent rotating shafts are connected to each other. A sliding core is mounted on the slide rail and movably connected to the rotating shafts. Rotation of the rotating shafts can drive the sliding core to move along the axial direction of the rotating shafts.

[0006] In some embodiments, two adjacent shafts are connected by a spline, wherein the spline is a stepped spline.

[0007] In some embodiments, the slide core has a mounting cavity for accommodating the rotating shaft, the slide core and the rotating shaft are connected by a thread, the mounting cavity is provided with an internal thread, and the outer periphery of the rotating shaft is provided with an external thread that engages with the internal thread; or the slide core and the rotating shaft are connected by a transmission gear, the mounting cavity is provided with internal teeth, and the outer periphery of the rotating shaft is provided with external teeth that mesh with the internal teeth.

[0008] In some embodiments, the support base is disposed at both ends of each of the rotating shafts. The support base includes a base, a support column mounted on the base, and a connector mounted on the support column. The connector has a shaft hole, and the outer periphery of the rotating shaft is provided with a hollow thread near the end of the rotating shaft. The hollow thread is connected to the shaft hole.

[0009] In some embodiments, the length of the slip core is at least twice the length of the empty thread.

[0010] In some embodiments, the bottom of the mounting cavity is provided with a mounting notch, the width of which is greater than the width of the support column.

[0011] In some embodiments, the connector is an annular connector, and the outer diameter of the annular connector is smaller than the diameter of the internal thread or internal teeth of the sliding core cavity.

[0012] In some embodiments, the slide core includes a slide core body, and the slide rail has a slide core cavity that accommodates the slide core body, wherein the outer shape of the slide core body matches the inner shape of the slide core cavity.

[0013] In some embodiments, the slide core body is provided with a first limiting member, and the slide core cavity is provided with a second limiting member that matches the first limiting member.

[0014] In some embodiments, the rotating shaft located at the end of the slide rail is also connected to the drive mechanism.

[0015] In some embodiments, the car seat slide rail is a worm gear slide rail.

[0016] Another objective of this invention is to provide an automobile that includes the aforementioned automobile seat slide rail.

[0017] The present invention provides a car seat slide rail and a car, which have the following beneficial effects:

[0018] The car seat slide rail in this embodiment includes a slide rail and multiple rotating shafts. The multiple rotating shafts are sequentially installed on the slide rail along its length via support seats. Adjacent rotating shafts are connected to each other to form a segmented rotating shaft structure. The segmented rotating shaft structure of the car seat slide rail helps to reduce the deformation of the rotating shafts, thereby increasing the slide rail length and improving the slide rail strength. This solves the problem of large deformation of long worm gears limiting the slide rail length, and ensures rapid start-up, smooth movement, and accurate adjustment stroke. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of the car seat slide rail in an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram showing the interconnection of multiple rotating shafts in an embodiment of this utility model;

[0022] Figure 3 This is a perspective view of the rotating shaft in an embodiment of this utility model;

[0023] Figure 4 This is a side view of the car seat slide rail in an embodiment of this utility model;

[0024] Figure 5 This is a perspective view of the support base in an embodiment of this utility model;

[0025] Figure 6 This is a cross-sectional view of the car seat slide rail in an embodiment of this utility model.

[0026] Figure label:

[0027] 1. Slide rail; 11. Slide core cavity; 12. Second limiting component; 2. Rotating shaft; 21. Hollow thread; 3. Support seat; 31. Base; 311. Screw; 32. Support column; 33. Connecting component; 331. Shaft hole; 4. Slide core; 41. Mounting cavity; 42. Mounting notch; 43. Slide core body; 431. First limiting component; 5. Drive mechanism; 6. Transmission mechanism; 61. Worm gear; 62. Worm. Detailed Implementation

[0028] Various embodiments and features of this utility model are described herein with reference to the accompanying drawings.

[0029] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this invention will be apparent to those skilled in the art.

[0030] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, serve to explain the principles of the present invention.

[0031] These and other features of the present invention will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0032] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of the present invention, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0033] The above and other aspects, features and advantages of the present invention will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0034] Specific embodiments of the present invention will now be described with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of the present invention, which may be implemented in various ways. Well-known and / or repeated functions and structures have not been described in detail to avoid unnecessary or redundant details that could obscure the present invention. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely to serve as the basis and representative basis for the claims to teach those skilled in the art to use the present invention in a variety of substantially any suitable detailed structures.

[0035] The length direction of a car refers to the X-axis, the width direction refers to the Y-axis, and the height direction refers to the Z-axis.

[0036] The first embodiment of this utility model provides an automotive seat slide rail, such as... Figures 1-6 As shown, the car seat slide rail includes a slide rail 1 and multiple rotating shafts 2. The rotating shafts 2 are sequentially mounted on the slide rail 1 along its length via support seats 3. A sliding core 4 is mounted on the slide rail 1 and movably connected to the rotating shafts 2. A rotating shaft 2 located at one end of the slide rail 1 is also connected to a drive mechanism 5. The drive mechanism 5 drives the rotating shaft 2 to rotate, which in turn causes the sliding core 4 to move axially along the rotating shaft 2. When the rotating shaft 2 rotates, it pushes the sliding core 4 to move back and forth along the axis of the rotating shaft 2, achieving the function of adjusting the seat forward and backward. Here, the axis of the rotating shaft 2 is consistent with the length direction of the car.

[0037] In this embodiment, there are two slide rails 1, which are spaced apart along the width direction of the car. The drive mechanism 5 includes a drive unit. The first output end of the drive mechanism 5 is connected to the input end of the rotating shaft 2 on one side along the width direction of the car through a transmission mechanism 6. The second output end of the drive mechanism 5 is connected to the input end of the rotating shaft 2 on the other side along the width direction of the car through a transmission mechanism 6. In this embodiment, by connecting one drive mechanism 5 to two rotating shafts 2 simultaneously, it is beneficial to ensure the synchronicity of the movement of the rotating shafts 2 arranged on both sides along the width direction of the car, thereby ensuring the smoothness of the car seat movement.

[0038] The transmission mechanism 6 here consists of a meshing worm gear 61 and a worm 62. The worm 62 is connected to the output end of the drive mechanism 5, and the worm gear 61 is connected to the rotating shaft 2 at the end of the slide rail 1, forming a worm gear slide rail. The worm gear slide rail refers to the slide rail 1 connected to the drive mechanism 5 via the worm gear 61 and worm 62. Using a worm gear slide rail can change the direction of force transmission between the drive mechanism 5 and the rotating shaft 2, saving space in the vehicle's interior.

[0039] Furthermore, such as Figure 2 and Figure 3 As shown, two adjacent rotating shafts 2 are interconnected, which increases the length of the rotating shaft 2 and consequently the length of the slide rail 1. This solves the problem of the limited length of the slide rail 1 caused by the deformation of the worm gear 62. The two adjacent rotating shafts 2 are interconnected via splines, ensuring consistent movement of the rotating shafts 2. The segmented design of the rotating shafts 2 helps reduce the deformation of the rotating shafts 2, increases the length of the slide rail 1, and improves the strength of the slide rail 1.

[0040] For example, each shaft 2 is 300mm long. The first shaft has splines at both ends. One end obtains power from the drive shaft of the drive mechanism 5 through the spline and the transmission mechanism 6. The other end is connected to the second shaft through the spline, transmitting power to the second shaft to ensure that the first shaft and the second shaft rotate synchronously. The other end of the second shaft is connected to the third shaft, and so on down to the fourth shaft, the fifth shaft, the sixth shaft, and so on. All the shafts 2 rotate synchronously. The overall length of the shaft 2 can be determined according to the torque of the shaft 2.

[0041] For example, the spline is a stepped spline.

[0042] In this embodiment, as Figure 1 and Figure 4 As shown, the slide core 4 has a mounting cavity 41 for accommodating the rotating shaft 2. The mounting cavity 41 is provided with an internal thread, and the outer circumference of the rotating shaft 2 is provided with an external thread that mates with the internal thread. Here, the rotating shaft 2 and the slide core 4 are connected by the internal thread and the external thread. When the slide core 4 moves along the rotating shaft 2, the internal thread and the external thread match each other, which helps to ensure the smoothness of the movement of the slide core 4 when it moves along the rotating shaft 2.

[0043] The threads between two adjacent rotating shafts 2 are continuous (the empty thread 21 section is not threaded). This special design ensures that the sliding core body 43 can move smoothly across different rotating shafts 2 and properly engage with the external thread of the next rotating shaft 2.

[0044] like Figure 2 and Figure 3As shown, the outer periphery of the rotating shaft 2 is provided with an unthreaded section 21 near its end. This unthreaded section 21 refers to the unprocessed portion of the rotating shaft 2. The unthreaded section 21 at the end of the rotating shaft 2 provides an installation position for the support base 3. In this embodiment, since both adjacent rotating shafts 2 have unthreaded sections 21 at their ends, when the rotating shaft 2 moves from one rotating shaft to the next, it will pass through two sections of unthreaded section 21. Therefore, the length of the sliding core 4 is set to be at least twice the length of the unthreaded section 21 to ensure that the sliding core 4 can smoothly transition from one rotating shaft to the next without jamming.

[0045] Support seats 3 are located at both ends of each rotating shaft 2, and the support seats 3 support the rotating shaft 2, allowing the rotating shaft 2 to rotate around its own axis within the support seats 3. Multiple rotating shafts 2 are arranged in sequence, with at least two support positions on each rotating shaft 2, to improve the support strength of the rotating shaft 2, which helps to delay deformation of the rotating shaft 2 and reduce the degree of deformation.

[0046] like Figures 4-6 As shown, the support base 3 includes a base 31, which is connected to the bottom of the slide rail 1 by screws 311. Connecting the support base 3 and the slide rail 1 by screws 311 ensures the reliability of the connection between the two. Furthermore, the use of screws 311 for fixing makes installation and disassembly convenient and quick.

[0047] A support column 32 is mounted on the base 31, and a connector 33 is mounted on the support column 32. The support column 32 connects the base 31 and the connector 33. The connector 33 has a shaft hole 331, and a bearing is installed in the shaft hole 331. The shaft hole 331 is connected to the empty thread 21 through the bearing to achieve stable rotation of the rotating shaft 2 within the shaft hole 331. The connector 33 is an annular connector 33. The outer diameter of the annular connector 33 is smaller than the diameter of the internal thread of the slide core cavity 11 in the slide rail 1, ensuring that the slide core 4 will not get stuck at the top of the annular connector 33 when passing over it, thus ensuring the smooth movement of the slide core 4.

[0048] The bottom of the mounting cavity 41 inside the slide core 4 is provided with a mounting notch 42. The width of the mounting notch 42 is greater than the width of the support column 32. The width of the mounting notch 42 and the width of the support column 32 both refer to the dimensions facing the front or rear of the car. Setting the width of the mounting notch 42 to be greater than the width of the support column 32 ensures that the slide core 4 will not interfere with the support column 32 of the support base 3 during operation.

[0049] The slide core 4 includes a slide core body 43, and the slide rail 1 has a slide core cavity 11 that accommodates the slide core body 43. The outer shape of the slide core body 43 matches the inner shape of the slide core cavity 11 so as to ensure that when the rotating shaft 2 has the tendency to drive the slide core body 43 to rotate, the slide core body 43 can still move along the rotating shaft 2, thus converting rotation into movement.

[0050] Specifically, the slide core body 43 is provided with a first limiting member 431, and the slide core cavity 11 is provided with a second limiting member 12 that matches the first limiting member 431. The first limiting member 431 and the second limiting member 12 cooperate with each other to realize the smooth movement of the slide core body 43 along the rotating shaft 2. For example, two first limiting members 431 are arranged at intervals along the height direction of the vehicle, and the first limiting members 431 are staggered along the length direction of the vehicle.

[0051] In other embodiments, the sliding core 4 is connected to the rotating shaft 2 via transmission gears. The mounting cavity 41 has internal teeth, and the outer periphery of the rotating shaft 2 has external teeth that mesh with the internal teeth. When the sliding core 4 moves along the rotating shaft 2, the internal and external threads match each other, enabling high-precision motion transmission and ensuring accuracy and reliability.

[0052] In the above embodiment, the outer diameter of the annular connector 33 is smaller than the diameter of the internal teeth of the slide core cavity 11. This ensures that the slide core 4 will not get stuck at the top of the annular connector 33 when passing over it, thus ensuring the smoothness of the slide core 4's movement.

[0053] The second embodiment of this utility model provides an automobile, including the above-described automobile seat slide rail.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0056] In the description of this utility model, "multiple" means two or more.

[0057] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0058] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0059] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A car seat slide rail, characterized in that, It includes a slide rail and multiple rotating shafts. The multiple rotating shafts are sequentially mounted on the slide rail along its length via support bases. Adjacent rotating shafts are connected to each other. A sliding core is mounted on the slide rail and movably connected to the rotating shafts. Rotation of the rotating shafts can drive the sliding core to move along the axial direction of the rotating shafts.

2. The automotive seat slide rail according to claim 1, characterized in that, The two adjacent shafts are connected by a spline, which is a stepped spline.

3. The automotive seat slide rail according to claim 1, characterized in that, The sliding core has a mounting cavity to accommodate the rotating shaft. The sliding core and the rotating shaft are connected by a thread. The mounting cavity is provided with an internal thread, and the outer circumference of the rotating shaft is provided with an external thread that mates with the internal thread; or The sliding core is connected to the rotating shaft via transmission teeth. The mounting cavity is provided with internal teeth, and the outer periphery of the rotating shaft is provided with external teeth that mesh with the internal teeth.

4. The automotive seat slide rail according to claim 3, characterized in that, The support base is disposed at both ends of each of the rotating shafts. The support base includes a base, a support column mounted on the base, and a connector mounted on the support column. The connector has a shaft hole. The outer periphery of the rotating shaft is provided with a hollow thread near the end of the rotating shaft. The hollow thread is connected to the shaft hole.

5. The automotive seat slide rail according to claim 4, characterized in that, The length of the sliding core is at least twice the length of the empty thread.

6. The automotive seat slide rail according to claim 4, characterized in that, The bottom of the mounting cavity is provided with a mounting notch, the width of which is greater than the width of the support column.

7. The automotive seat slide rail according to claim 4, characterized in that, The slide core includes a slide core body, and the slide rail has a slide core cavity that accommodates the slide core body; the outer shape of the slide core body matches the inner shape of the slide core cavity; and / or The slide core body is provided with a first limiting member, and the slide core cavity is provided with a second limiting member that matches the first limiting member.

8. The automotive seat slide rail according to claim 7, characterized in that, The connector is an annular connector, and the outer diameter of the annular connector is smaller than the diameter of the internal thread or internal teeth of the sliding core cavity.

9. The automotive seat slide rail according to claim 1, characterized in that, The rotating shaft located at the end of the slide rail is also connected to the drive mechanism; and / or The car seat slide rail is a worm gear type slide rail.

10. A car, characterized in that, The automobile seat rail includes any one of claims 1-9.

Images