Sliding door mounting structure and vehicle

Abstract

The utility model provides a sliding door installation structure and a vehicle, the sliding door installation structure relates to the technical field of sliding door installation, the sliding door installation structure comprises a sliding door sliding rail, the sliding door sliding rail comprises an upper sliding rail, a middle sliding rail and a lower sliding rail, the upper sliding rail, the middle sliding rail and the lower sliding rail are all used for being installed on a vehicle body, the upper sliding rail, the middle sliding rail and the lower sliding rail are arranged at intervals from top to bottom, the upper sliding rail and the lower sliding rail are arranged parallel to the horizontal plane, and the middle sliding rail is gradually and obliquely arranged upwards from front to back. According to the sliding door installation structure, the middle sliding rail gradually inclines upwards from front to back, the upper sliding rail and the lower sliding rail are parallel to the horizontal plane, and therefore the opening speed of the sliding door can be reduced, impact force and impact sound in the door opening process are reduced, and meanwhile all parts of the sliding door installation structure can be well protected.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a sliding door mounting structure. Furthermore, this utility model also relates to vehicles equipped with the aforementioned sliding door mounting structure. Background Technology

[0002] Currently, with the increasing popularity of cars, people have higher and higher requirements for car comfort. In addition, considering factors such as ease of getting in and out of the car and door opening space, models with sliding doors are becoming more and more popular among families. In these models, the rear doors are generally replaced by sliding doors instead of the traditional rotating doors to create a larger door opening space and improve the convenience of getting in and out of the car.

[0003] However, in the use of existing sliding door structures, passengers mostly need to manually open the sliding door. During the opening process, if the passenger uses too much force, the sliding door may slide too fast, resulting in excessive impact force, obvious impact noise, and damage to components. Utility Model Content

[0004] In view of this, the present invention aims to propose a sliding door installation structure to reduce the impact force and impact noise of the sliding door, while better protecting the components.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A sliding door mounting structure includes a sliding door track, wherein the sliding door track includes an upper track, a middle track, and a lower track;

[0007] The upper slide rail, the middle slide rail, and the lower slide rail are all used to be installed on the vehicle body, and the upper slide rail, the middle slide rail, and the lower slide rail are arranged at intervals from top to bottom;

[0008] The upper slide rail and the lower slide rail are arranged parallel to the horizontal plane;

[0009] The middle slide rail is gradually tilted upwards from front to back.

[0010] Furthermore, the sliding door mounting structure also includes a sliding door hinge, which includes an upper hinge assembly that slides with the upper slide rail, a middle hinge assembly that slides with the middle slide rail, and a lower hinge assembly that slides with the lower slide rail. The upper hinge assembly, the middle hinge assembly, and the lower hinge assembly are all used to connect to the sliding door.

[0011] Furthermore, the upper slide rail is provided with an upper sliding groove, and the upper hinge assembly includes an upper hinge guide wheel embedded in the upper sliding groove; the projection of the outer wall of the upper hinge guide wheel on the cross-section of the upper slide rail is arc-shaped, and the middle position of the outer wall in the vertical direction protrudes towards the side wall of the upper slide rail on the corresponding side; the single-sided gap between the upper hinge guide wheel and the side wall of the upper sliding groove in the horizontal direction is between 0.3mm and 0.5mm.

[0012] Furthermore, the upper hinge assembly is provided with a limiting plate and a mounting post connected to one side of the limiting plate. The upper hinge guide wheel is rotatably mounted on the mounting post. The vertical distance between the limiting plate and the lower opening of the upper sliding groove is greater than 2mm. The vertical distance between the bottom wall of the upper sliding groove and the upper hinge guide wheel is greater than 2mm. And / or, the upper hinge guide wheel is made of polyetheretherketone (PEEK).

[0013] Furthermore, the central slide rail is provided with a central slide groove, and the central hinge assembly includes a central hinge guide wheel embedded in the central slide groove; the projection of the outer wall of the central hinge guide wheel on the cross-section of the central slide rail is straight, and the outer wall of the central hinge guide wheel is parallel to the side wall of the central slide groove.

[0014] The gap between the inner side of the central hinge guide wheel and the side wall of the central sliding groove is between 0.15mm and 0.25mm; the gap between the outer side of the central hinge guide wheel and the side wall of the central sliding groove is between 0.6mm and 0.8mm.

[0015] Furthermore, the vertical distance between the bottom wall of the central sliding groove and the central hinge guide wheel is greater than 2mm.

[0016] Furthermore, the angle α between the middle slide rail and the horizontal plane is between 0.7° and 1°, and the vertical lifting height of the rear end of the middle slide rail is between 0.7mm and 1mm; and / or, the surface of the middle slide rail is sequentially covered with a galvanized layer, an electrophoretic paint layer, and a powder coating protective layer.

[0017] Furthermore, the radius of the front curved section of the middle slide rail is smaller than the radius of the front curved section of the upper slide rail, and the radius of the front curved section of the middle slide rail is smaller than the radius of the front curved section of the lower slide rail; the radii of the front curved sections of the upper slide rail and the lower slide rail are both above 800mm.

[0018] Furthermore, the lower slide rail is formed by partial stamping of the lower body sheet metal.

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] The sliding door installation structure described in this utility model has the middle slide rail gradually tilted upward from front to back, while the upper and lower slide rails are arranged parallel to the horizontal plane. During the process of the sliding door opening backward, the opening speed of the sliding door can be reduced, thereby reducing the impact force and impact noise during the opening process, and better protecting the various components of the sliding door installation structure.

[0021] Secondly, the upper, middle, and lower hinge assemblies connect to the sliding door, enabling its sliding opening and closing functions and ensuring stability during movement. Since the upper hinge guide wheel experiences vertical up-and-down movement during sliding, the projection of its outer wall onto the cross-section of the upper slide rail is curved. The contact between the upper hinge guide wheel and the side wall of the upper slide rail is point contact. Furthermore, the horizontal clearance between the upper hinge guide wheel and the side wall of the upper slide rail is limited to 0.3mm to 0.5mm on each side. These measures effectively reduce the friction area during opening, thus minimizing opening noise.

[0022] Furthermore, ensuring that the vertical distance between the limiting plate and the lower opening of the upper sliding groove is greater than 2mm, and that the vertical distance between the bottom wall of the upper sliding groove and the upper hinge guide wheel is greater than 2mm, effectively prevents the upper hinge guide wheel from colliding with the upper slide rail when it fluctuates vertically, thus preventing abnormal noise. The upper hinge guide wheel is made of polyetheretherketone (PEEK), whose heat-resistant and wear-resistant properties prevent deformation after being subjected to force for a period of time, thereby reducing the possibility of abnormal noise.

[0023] The projection of the outer wall of the middle hinge guide wheel onto the cross-section of the middle slide rail is linear, which makes the contact between the middle hinge guide wheel and the side wall of the middle slide groove during the rolling process a line contact. The gap between the inner side of the middle hinge guide wheel and the side wall of the middle slide groove is limited to 0.15mm to 0.25mm, and the gap between the outer side of the middle hinge guide wheel and the side wall of the middle slide groove is limited to 0.6mm to 0.8mm. This can effectively prevent local deformation of the middle hinge guide wheel and further prevent abnormal noise when opening the door.

[0024] Furthermore, the vertical distance between the bottom wall of the central sliding track and the central hinge guide wheel is greater than 2mm. This effectively prevents the central hinge guide wheel from colliding with the central sliding track when it fluctuates vertically, thus preventing abnormal noise. Limiting the angle α between the central sliding track and the horizontal plane to between 0.7° and 1°, and limiting the vertical lifting height of the rear end of the central sliding track to between 0.7mm and 1mm, both effectively control the speed at which the sliding door opens backward, preventing excessive opening speed and excessive opening resistance. The surface of the central sliding track is sequentially coated with a galvanized layer, an electrophoretic paint layer, and a powder coating protective layer, which improves the durability of the central sliding track, enhances the smoothness of the central hinge guide wheel's rolling process, and prevents slight abnormal noise caused by localized roughness of the central hinge guide wheel.

[0025] The lower sliding rail is formed by partial stamping of the lower body sheet metal, reducing the number of parts. The lower sliding rail can be formed during the processing of the lower body sheet metal, saving processing and assembly time. The radii of the front curved sections of both the upper and lower sliding rails are over 800mm, improving the smoothness of opening the sliding door at the B-pillar. The radius of the front curved section of the middle sliding rail is smaller than that of the upper and lower sliding rails because the radii of the front curved sections of both rails are relatively large. This results in gentler curves in both sections, allowing the sliding door to slide quickly in both lateral directions, preventing impact with the side trim strips. Furthermore, another objective of this invention is to provide a vehicle in which the sliding door is mounted to the vehicle body using the aforementioned sliding door mounting structure.

[0026] The vehicle described in this utility model, by adopting the above-mentioned sliding door mounting structure, can slow down the opening speed of the sliding door, thereby reducing the impact force and impact noise of the sliding door, and can better protect the various components of the above-mentioned sliding door mounting structure. Attached Figure Description

[0027] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the sliding door installation structure described in Embodiment 1 of this utility model;

[0029] Figure 2 This is a schematic diagram of the upper slide rail structure according to Embodiment 1 of this utility model;

[0030] Figure 3 for Figure 2 The structure shown is a cross-sectional view along the AA direction;

[0031] Figure 4 This is a schematic diagram of the structure of the sliding rail described in Embodiment 1 of this utility model;

[0032] Figure 5 for Figure 4 The structure shown is a cross-sectional view along the BB direction;

[0033] Figure 6 for Figure 5 Enlarged view of the structure shown at point C;

[0034] Figure 7 This is a schematic diagram of the structure of the lower slide rail according to Embodiment 1 of this utility model;

[0035] Figure 8 for Figure 7 An enlarged view of the structure shown at point D.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100. Sliding door track;

[0038] 1. Upper slide rail; 11. Upper slide groove;

[0039] 2. Middle slide rail; 21. Middle slide groove;

[0040] 3. Lower rail;

[0041] 41. Upper hinge assembly; 411. Upper hinge guide wheel; 412. Limiting plate; 413. Mounting post; 414. Hinge body; 4141. First seat; 4142. Second seat; 42. Middle hinge assembly; 421. Middle hinge guide wheel; 422. Middle hinge load-bearing wheel; 43. Lower hinge assembly; 431. Lower hinge load-bearing wheel; 432. Lower hinge guide wheel;

[0042] 51. Bottom wall; 52. Front curved section; 521. First section; 522. Second section;

[0043] 6. Side pedals. Detailed Implementation

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0045] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0047] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] Example 1

[0049] This embodiment relates to a sliding door installation structure that can slow down the opening speed of the sliding door, thereby reducing the impact force and impact noise during the opening process, while also providing better protection for the components.

[0050] In terms of overall structure, refer to Figure 1 As shown in the diagram, the sliding door mounting structure of this embodiment includes a sliding door track 100. The sliding door track 100 includes an upper track 1, a middle track 2, and a lower track 3. Furthermore, the upper track 1, middle track 2, and lower track 3 are all used for mounting to the vehicle body, and are arranged at intervals from top to bottom. The upper track 1 and lower track 3 are arranged parallel to the horizontal plane, while the middle track 2 is gradually inclined upwards from front to back along the front-rear direction of the vehicle body.

[0051] At this time, with the above settings, the middle slide rail 2 is gradually tilted upward from front to back, while the upper slide rail 1 and the lower slide rail 3 are arranged parallel to the horizontal plane. During the process of the sliding door opening backward, the opening speed of the sliding door can be reduced, thereby reducing the impact force and impact noise during the opening process, and better protecting the various components of the sliding door installation structure.

[0052] It should be noted that this embodiment describes the installation of the upper slide rail 1, the middle slide rail 2, and the lower slide rail 3 all on the right side of the vehicle body. Figure 1The front-to-back direction shown is the front-to-back direction of the vehicle. Furthermore, the installation method of the upper slide rail 1, middle slide rail 2, and lower slide rail 3 on the vehicle body can be set with reference to existing technologies, such as screwing or welding.

[0053] Secondly, in this embodiment, as a preferred implementation, we continue to refer to... Figure 1 As shown, the angle α between the middle slide rail 2 and the horizontal plane is between 0.7° and 1°, and the vertical lifting height D7 of the rear end of the middle slide rail 2 is between 0.7mm and 1mm.

[0054] Here, limiting the angle α between the middle slide rail 2 and the horizontal plane to between 0.7° and 1°, and limiting the vertical lifting height D7 of the rear end of the middle slide rail 2 to between 0.7mm and 1mm, can effectively control the speed at which the sliding door opens backward, preventing excessive opening speed and excessive opening resistance. In the specific structure, the vertical lifting height D7 of the rear end of the middle slide rail 2 can be set to 0.7mm. Of course, it can also be designed and adjusted according to actual needs, such as setting it to 0.8mm, 0.9mm, etc.

[0055] Furthermore, the angle α between the middle slide rail 2 and the horizontal plane, which is also the angle between the lower slide rail 3 and the middle slide rail 2, is specifically structured such that the angle β between the upper slide rail 1 and the middle slide rail 2 is 179.23°, and the angle between the lower slide rail 3 and the middle slide rail 2 is 0.77°.

[0056] Of course, the included angle β between the upper slide rail 1 and the middle slide rail 2, and the included angle between the lower slide rail 3 and the middle slide rail 2 can be designed and adjusted according to actual needs. For example, the included angle β between the upper slide rail 1 and the middle slide rail 2 can be set to 179.22°, 179.24°, etc., and the included angle between the lower slide rail 3 and the middle slide rail 2 can be set to 0.78°, 0.76°, etc., as long as the upper slide rail 1 and the lower slide rail 3 are arranged in parallel.

[0057] Meanwhile, the surface of the middle slide rail 2 is sequentially covered with a galvanized layer, an electrophoretic paint layer, and a powder coating protective layer. Thus, the sequential application of a galvanized layer, an electrophoretic paint layer, and a powder coating protective layer on the surface of the middle slide rail 2 can improve the durability of the middle slide rail 2, improve the smoothness of the rolling process of the middle hinge guide wheel 421, and prevent slight abnormal noises caused by local roughness of the middle hinge guide wheel 421.

[0058] Specifically, the galvanized layer is formed on the surface of the middle slide rail 2 by electroplating, and then the electrophoretic paint layer is covered on the surface of the galvanized layer by electrophoresis. Finally, the powder coating protective layer is sprayed on the surface of the electrophoretic paint layer by powder coating.

[0059] Based on the above overall introduction, in this embodiment, as a preferred implementation, such as Figure 1As shown, the sliding door mounting structure also includes a sliding door hinge, which includes an upper hinge assembly 41 that slides with the upper slide rail 1, a middle hinge assembly 42 that slides with the middle slide rail 2, and a lower hinge assembly 43 that slides with the lower slide rail 3. The upper hinge assembly 41, the middle hinge assembly 42, and the lower hinge assembly 43 are all used to connect with the sliding door.

[0060] Here, the upper hinge assembly 41, the middle hinge assembly 42, and the lower hinge assembly 43 are arranged to connect with the sliding door, enabling the door to slide open and close, and ensuring the stability of the sliding door's movement. It should be noted that the specific structures of the upper hinge assembly 41, the middle hinge assembly 42, and the lower hinge assembly 43 can refer to existing technologies; for example, all of the aforementioned hinge assemblies include a hinge body 414.

[0061] Furthermore, this embodiment will be described using the hinge body 414 in the hinge assembly 41 as an example, such as... Figure 2 As shown, the hinge body 414 consists of a first seat 4141 and a second seat 4142 connected together. The first seat 4141 is used to install the sliding door, and the second seat 4142 is slidably connected to the upper slide rail 1. The limiting plate 412 described below is installed on the second seat 4142. The first seat 4141 and the sliding door can be connected by screws. Of course, in addition to screws, other common connection methods can also be used.

[0062] It should be noted that the hinge body 414 in the middle hinge assembly 42 and the lower hinge assembly 43 has a similar structure to the hinge body 414 in the upper hinge assembly 41, and will not be described in detail here.

[0063] Specifically, in this embodiment, as a preferred implementation, such as Figure 2 and Figure 3 As shown, the upper slide rail 1 is provided with an upper slide groove 11, and the upper hinge assembly 41 includes an upper hinge guide wheel 411 embedded in the upper slide groove 11. The projection of the outer wall of the upper hinge guide wheel 411 onto the cross-section of the upper slide rail 1 is arc-shaped, and the middle position of the outer wall in the vertical direction protrudes towards the side wall of the upper slide rail 1 on the corresponding side. The single-sided gap D1 between the upper hinge guide wheel 411 and the side wall of the upper slide groove 11 in the horizontal direction is between 0.3mm and 0.5mm.

[0064] Here, since the upper hinge guide wheel 411 will fluctuate vertically during the sliding door movement, the projection of the outer wall of the upper hinge guide wheel 411 onto the cross-section of the upper slide rail 1 is defined as arc-shaped. The contact mode between the upper hinge guide wheel 411 and the side wall of the upper slide groove 11 during the sliding process is point contact. The single-sided gap D1 between the upper hinge guide wheel 411 and the side wall of the upper slide groove 11 in the horizontal direction is defined as being between 0.3mm and 0.5mm. All of these measures can effectively reduce the friction area during the opening process of the sliding door, thereby reducing abnormal noise when opening the door.

[0065] In the specific structure, the single-sided gap D1 between the upper hinge guide wheel 411 and the side wall of the upper slide groove 11 in the horizontal direction can be set to 0.4. Of course, it can also be designed and adjusted according to actual needs, such as 0.3 or 0.5.

[0066] Meanwhile, in this embodiment, as a preferred implementation, it is still as follows: Figure 3 As shown, the upper hinge assembly 41 is provided with a limiting plate 412 and a mounting post 413 connected to one side of the limiting plate 412. The upper hinge guide wheel 411 is rotatably mounted on the mounting post 413. The vertical distance D2 between the limiting plate 412 and the lower opening of the upper slide groove 11 is greater than 2mm, and the vertical distance D3 between the bottom wall 51 of the upper slide groove 11 and the upper hinge guide wheel 411 is greater than 2mm.

[0067] Here, the vertical distance D2 between the limiting plate 412 and the lower opening of the upper slide groove 11 is greater than 2mm, and the vertical distance D3 between the bottom wall 51 of the upper slide groove 11 and the upper hinge guide wheel 411 is greater than 2mm, which can effectively prevent the upper hinge guide wheel 411 from colliding with the upper slide rail 1 when it fluctuates in the vertical direction, thereby preventing abnormal noise.

[0068] Furthermore, setting the vertical distance D3 between the bottom wall 51 of the upper slide groove 11 and the upper hinge guide wheel 411 to be more than 2mm can prevent the upper hinge guide wheel 411 from colliding with the upper slide groove 11 and producing abnormal noise when it moves up and down. Specifically, it can be set to 2.75mm, or it can be set to 2.85mm or 2.65mm according to actual needs.

[0069] It is worth mentioning that during the movement of the upper hinge guide wheel 411, the minimum vertical distance D3 between the bottom wall 51 of the upper slide groove 11 and the upper hinge guide wheel 411 is 2mm. It should be noted that the bottom wall 51 of the upper slide groove 11 in this embodiment refers to the inner wall corresponding to the opening of the upper slide groove 11, as shown in the figure below. The bottom wall 51 of the middle slide groove 21 described below is the inner wall corresponding to the opening of the upper slide groove 11.

[0070] Furthermore, as a preferred embodiment, the upper hinge guide wheel 411 in this embodiment is made of polyetheretherketone (PEEK). The advantage of this design is that the PEEK material, with its heat-resistant and wear-resistant properties, prevents deformation of the upper hinge guide wheel 411 after a period of stress, thereby reducing the possibility of abnormal noise.

[0071] It is still worth mentioning that the upper hinge guide wheel 411 in this embodiment can also be made of materials such as polyetherketone (PEK), polyetherketoneketone (PEKK), polyetheretherketoneketone (PEEKK), and polyetherketoneetherketoneketone (PEKEKK).

[0072] Furthermore, in this embodiment, as a preferred implementation, such as Figure 4 , Figure 5 and Figure 6 As shown, the central slide rail 2 is provided with a central slide groove 21, and the central hinge assembly 42 includes a central hinge guide wheel 421 embedded in the central slide groove 21. The projection of the outer wall of the central hinge guide wheel 421 onto the cross-section of the central slide rail 2 is linear, and the outer wall of the central hinge guide wheel 421 is parallel to the side wall of the central slide groove 21.

[0073] Furthermore, the gap D4 between the inner side of the central hinge guide wheel 421 and the side wall of the central slide groove 21 is between 0.15mm and 0.25mm, and the gap D5 between the outer side of the central hinge guide wheel 421 and the side wall of the central slide groove 21 is between 0.6mm and 0.8mm.

[0074] Therefore, the projection of the outer wall of the middle hinge guide wheel 421 onto the cross-section of the middle slide rail 2 is linear, making the contact between the middle hinge guide wheel 421 and the side wall of the middle slide groove 21 during rolling a line contact. This limits the gap D4 between the inner side of the middle hinge guide wheel 421 and the side wall of the middle slide groove 21 to between 0.15mm and 0.25mm, and the gap D5 between the outer side of the middle hinge guide wheel 421 and the side wall of the middle slide groove 21 to between 0.6mm and 0.8mm. This effectively prevents local deformation of the middle hinge guide wheel 421 and further prevents abnormal noise when opening the door.

[0075] In the specific structure, the gap D4 between the inner side of the middle hinge guide wheel 421 and the side wall of the middle slide groove 21 can be set to 0.18mm. Of course, the gap D4 between the inner side of the middle hinge guide wheel 421 and the side wall of the middle slide groove 21 can also be designed and adjusted according to actual needs, such as being set to 0.15mm, 0.2mm or 0.25mm.

[0076] Meanwhile, the gap D5 between the outer side of the central hinge guide wheel 421 and the side wall of the central slide groove 21 can be set to 0.72mm, and its specific value can also be adjusted according to actual needs, such as 0.6mm, 0.7mm or 0.8mm.

[0077] Furthermore, it should be noted that the middle hinge assembly 42 in this embodiment is also provided with a middle hinge load-bearing wheel 422, which, together with the middle hinge guide wheel 421, can serve as a fulcrum for the rear of the sliding door. Moreover, the installation method of the middle hinge guide wheel 421 and the lower hinge guide wheel 432 described below will not be repeated here; both can refer to the installation method of the upper hinge guide wheel 411, that is, a mounting post 413 is provided on the limiting plate 412, and the upper hinge guide wheel 411 is rotatably mounted on the mounting post 413.

[0078] Furthermore, in this embodiment, as a preferred implementation, the vertical distance D6 between the bottom wall 51 of the central slide groove 21 and the central hinge guide wheel 421 is greater than 2mm. This arrangement effectively prevents the central hinge guide wheel 421 from colliding with the central slide rail 2 when it fluctuates vertically, thereby preventing abnormal noise.

[0079] In specific implementation, the vertical distance D6 between the bottom wall 51 of the middle sliding groove 21 and the middle hinge guide wheel 421 can be set to 3.15mm. Of course, its specific value can also be designed and adjusted according to actual needs, such as 2.5mm or 3mm.

[0080] In addition, in this embodiment, as a preferred implementation, such as Figure 7 As shown, the lower slide rail 3 is formed by partial stamping of the lower body sheet metal. Here, the lower slide rail 3 is formed by partial stamping of the lower body sheet metal, which can reduce the number of parts, thereby reducing the overall vehicle weight, and the lower slide rail 3 can be formed during the processing of the lower body sheet metal, saving processing time and assembly time for the lower slide rail 3.

[0081] It should be noted that the aforementioned lower body structure can be the side step 6 structure of the vehicle. In specific structures, such as... Figure 8 As shown, the lower hinge assembly 43 is provided with a lower hinge load-bearing wheel 431 and a lower hinge guide wheel 432. The lower hinge assembly 43 slides on the lower slide rail 3 via the lower hinge load-bearing wheel 431, and the specific arrangement structure of the lower hinge guide wheel 432 can be set with reference to the prior art. For example, a guide groove adapted to the lower hinge guide wheel 432 can be provided on the side pedal 6, so that the lower hinge guide wheel 432 is embedded in the guide groove, and a gap is provided between the lower hinge guide wheel 432 and the side wall of the guide groove, and between the lower hinge guide wheel 432 and the bottom wall 51 of the guide groove.

[0082] Furthermore, the gap range between the lower hinge guide wheel 432 and the side wall of the guide groove, and the gap range between the lower hinge guide wheel 432 and the bottom wall 51 of the guide groove, can be set with reference to the gap between the upper hinge guide wheel 411 and the upper sliding groove 11, and will not be elaborated here.

[0083] As a preferred implementation method, such as Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, the radius of the front curved section 52 of the middle slide rail 2 is smaller than the radius of the front curved section 52 of the upper slide rail 1, and the radius of the front curved section 52 of the middle slide rail 2 is smaller than the radius of the front curved section 52 of the lower slide rail 3. In this embodiment, the radii R2 of the front curved sections 52 of the upper slide rail 1 and the lower slide rail 3 are both above 800mm. Therefore, setting the radii R2 of the front curved sections 52 of the upper slide rail 1 and the lower slide rail 3 above 800mm can improve the smoothness of the sliding door B-pillar opening and reduce noise sources, which is beneficial to improving the overall vehicle quality control.

[0084] In the specific structure, the front curved section 52 of the upper slide rail 1 is divided into two segments, and the radius R11 of the first segment 521 and the radius R12 of the second segment 522 are both greater than 500mm. After the first segment 521 and the second segment 522 are spliced ​​together, the radius R1 of the front curved section 52 of the upper slide rail 1 is greater than 800mm. Specifically, the radius R11 of the first segment 521 and the radius R12 of the second segment 522 can both be set to 510mm. Of course, the radius R11 of the first segment 521 and the radius R12 of the second segment 522 can also be designed and adjusted according to actual needs, for example, they can be set to 520mm, 530mm, or 540mm, etc.

[0085] In practical implementation, the radius R2 of the front curved section 52 of the lower slide rail 3 can be set to 860mm. Furthermore, the radius R2 of the front curved section 52 of the lower slide rail 3 can be adjusted adaptively, provided that the smoothness of the sliding door's B-pillar opening is guaranteed; for example, it can also be set to 870mm, 850mm, etc. Additionally, the radius R3 of the front curved section 52 of the middle slide rail 2 is set to be above 100mm, specifically 112mm. Of course, the specific value of the radius R3 of the front curved section 52 of the middle slide rail 2 can also be set to 110mm, 120mm, etc.

[0086] In the above structure, since the radii of the front curved section 52 of the upper slide rail 1 and the front curved section 52 of the lower slide rail 3 are relatively large, while the radius of the front curved section 52 of the middle slide rail 2 is smaller than that of the front curved section 52 of the upper slide rail 1, and the radius of the front curved section 52 of the middle slide rail 2 is smaller than that of the front curved section 52 of the lower slide rail 3, the front curved sections 52 of the upper slide rail 1 and the lower slide rail 3 are relatively gentle. When the sliding door is opened, it can slide out quickly in the left and right directions of the vehicle, which helps to prevent collision with the side trim strips on the vehicle.

[0087] In this embodiment, the sliding door installation structure is designed so that the middle slide rail 2 is gradually tilted upward from front to back, and the upper slide rail 1 and the lower slide rail 3 are parallel to the horizontal plane. This reduces the opening speed of the sliding door, thereby reducing the impact force and noise during the opening process and better protecting the various components of the sliding door installation structure.

[0088] Example 2

[0089] This embodiment relates to a vehicle in which the sliding door is mounted on the vehicle body via the sliding door mounting structure described in Embodiment 1.

[0090] The vehicle in this embodiment adopts the sliding door mounting structure in Embodiment 1, which can slow down the opening speed of the sliding door, thereby reducing the impact force and impact noise during the opening process, which is beneficial to improving the overall vehicle quality control, and at the same time can better protect the various components of the sliding door mounting structure.

[0091] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sliding door mounting structure, comprising a sliding door track (100), characterized in that: The sliding door track (100) includes an upper track (1), a middle track (2), and a lower track (3); The upper slide rail (1), the middle slide rail (2) and the lower slide rail (3) are all used to be installed on the vehicle body, and the upper slide rail (1), the middle slide rail (2) and the lower slide rail (3) are arranged at intervals from top to bottom; The upper slide rail (1) and the lower slide rail (3) are arranged parallel to the horizontal plane; The middle slide rail (2) is set to gradually tilt upwards from front to back along the front-rear direction of the vehicle body.

2. The sliding door installation structure according to claim 1, characterized in that: The sliding door mounting structure also includes a sliding door hinge, which includes an upper hinge assembly (41) that slides with the upper slide rail (1), a middle hinge assembly (42) that slides with the middle slide rail (2), and a lower hinge assembly (43) that slides with the lower slide rail (3). The upper hinge assembly (41), the middle hinge assembly (42), and the lower hinge assembly (43) are all used to connect to the sliding door.

3. The sliding door installation structure according to claim 2, characterized in that: The upper slide rail (1) is provided with an upper slide groove (11), and the upper hinge assembly (41) includes an upper hinge guide wheel (411) embedded in the upper slide groove (11); The projection of the outer wall of the upper hinge guide wheel (411) onto the cross-section of the upper slide rail (1) is arc-shaped, and the middle position of the outer wall in the vertical direction protrudes toward the side wall of the upper slide rail (1) on the corresponding side. The horizontal clearance between the upper hinge guide wheel (411) and the side wall of the upper slide groove (11) is between 0.3mm and 0.5mm on one side.

4. The sliding door installation structure according to claim 3, characterized in that: The upper hinge assembly (41) is provided with a limiting plate (412) and a mounting post (413) connected to one side of the limiting plate (412). The upper hinge guide wheel (411) is rotatably mounted on the mounting post (413). The vertical distance between the lower opening of the limiting plate (412) and the upper slide groove (11) is greater than 2 mm. The vertical distance between the bottom wall (51) of the upper slide groove (11) and the upper hinge guide wheel (411) is greater than 2 mm. And / or, The upper hinge guide wheel (411) is made of polyetheretherketone (PEEK).

5. The sliding door installation structure according to claim 2, characterized in that: The middle slide rail (2) is provided with a middle slide groove (21), and the middle hinge assembly (42) includes a middle hinge guide wheel (421) embedded in the middle slide groove (21); The projection of the outer wall of the middle hinge guide wheel (421) onto the cross-section of the middle slide rail (2) is straight, and the outer wall of the middle hinge guide wheel (421) is parallel to the side wall of the middle slide groove (21). The gap between the inner side of the central hinge guide wheel (421) and the side wall of the central sliding groove (21) is between 0.15mm and 0.25mm; the gap between the outer side of the central hinge guide wheel (421) and the side wall of the central sliding groove (21) is between 0.6mm and 0.8mm.

6. The sliding door installation structure according to claim 5, characterized in that: The vertical distance between the bottom wall (51) of the middle sliding groove (21) and the middle hinge guide wheel (421) is greater than 2mm.

7. The sliding door mounting structure according to claim 1, characterized in that: The angle α between the middle slide rail (2) and the horizontal plane is between 0.7° and 1°, and the vertical lifting height of the rear end of the middle slide rail (2) is between 0.7mm and 1mm; and / or, The surface of the middle slide rail (2) is sequentially covered with a galvanized layer, an electrophoretic paint layer, and a powder coating protective layer.

8. The sliding door mounting structure according to claim 1, characterized in that: The radius of the front curved section (52) of the middle slide rail (2) is smaller than the radius of the front curved section (52) of the upper slide rail (1), and the radius of the front curved section (52) of the middle slide rail (2) is smaller than the radius of the front curved section (52) of the lower slide rail (3). The radii of the front curved section (52) of the upper slide rail (1) and the front curved section (52) of the lower slide rail (3) are both above 800mm.

9. The sliding door mounting structure according to any one of claims 1-8, characterized in that: The lower slide rail (3) is formed by partial stamping of the lower body sheet metal.

10. A vehicle, characterized in that: The sliding door of the vehicle is mounted on the vehicle body using the sliding door mounting structure as described in any one of claims 1-9.

Images