Automobile side ladder stand and installation method

Abstract

The invention relates to the technical field of automobiles, in particular to an automobile side ladder stand and a mounting method. The automobile side ladder stand comprises a ladder stand shell, a mounting frame and a ladder stand body, the mounting frame is coated with the ladder stand shell, and the mounting frame comprises a first mounting part and a second mounting part; the first mounting part and the second mounting part are used for mounting the automobile side ladder on an automobile body in the Z direction and the Y direction of the automobile body respectively, the ladder body comprises an inner supporting rod and an outer supporting rod, the inner supporting rod and the mounting frame are connected into a whole, and the outer supporting rod can be unfolded or folded relative to the inner supporting rod. The outer supporting rod can be used for climbing, and the crawling ladder shell is used for covering the outer supporting rod in the X direction and the Z direction of the vehicle body when the outer supporting rod is folded relative to the inner supporting rod. The installation method of the automobile side ladder stand is used for installing the automobile side ladder stand.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and particularly relates to an automobile side ladder and an installation method thereof. Background Art

[0002] Currently, there are more and more users of self-driving SUVs for outdoor off-roading. As a core component of the off-road package, side ladders are becoming more and more popular among off-road enthusiasts. The commonly seen side ladders on the market generally fall into two categories: non-load-bearing decorative side ladders and load-bearing deployable side ladders. Non-load-bearing decorative side ladders generally have disadvantages such as poor load-bearing capacity, being greatly affected by the body shape, being not conducive to the platform application of vehicle models, lacking protective measures at the positions in contact with the body, and being easy to wear the body, so there are fewer users; Load-bearing deployable side ladders are the mainstream in the market, but they generally have problems such as high installation difficulty, damage to the body during installation, excessive space occupation, easy deformation during use, poor aesthetics, poor drainage performance, poor anti-slip performance, and poor human-machine convenience. Summary of the Invention

[0003] The present invention provides an automobile side ladder, which includes a ladder housing, an installation frame, and a ladder body. The ladder housing is wrapped outside the installation frame. The installation frame includes a first installation part and a second installation part. The first installation part and the second installation part are respectively used to install the automobile side ladder onto the vehicle body along the vehicle body Z direction and the vehicle body Y direction. The ladder body includes an inner support rod and an outer support rod. The inner support rod is integrally connected with the installation frame. The outer support rod can be opened or retracted relative to the inner support rod. The outer support rod can be used for climbing. The ladder housing is used to cover the outer support rod in the vehicle body X direction and the vehicle body Z direction when the outer support rod is retracted relative to the inner support rod.

[0004] Further, the ladder housing includes a first decorative panel and a second decorative panel. The first decorative panel and the second decorative panel are integrally connected. The first decorative panel is arranged above the luggage rack along the vehicle body Z direction and is integrally connected with the luggage rack. The first decorative panel is also integrally connected with the installation frame. The first decorative panel is used to cover the luggage rack and the first installation part. The second decorative panel is arranged above the installation frame and the ladder body along the vehicle body Y direction. The second decorative panel is used to cover the second installation part and the ladder body.

[0005] Further, the ladder housing further includes a third decorative panel. The third decorative panel is arranged between the first decorative panel and the second decorative panel in the vehicle body Y direction. The third decorative panel is also arranged above the installation frame in the vehicle body Z direction. The third decorative panel is used to beautify the connection between the first decorative panel and the second decorative panel. The third decorative panel is also used to drain the rain and snow falling on the ladder housing into the ladder housing.

[0006] Further, the first mounting portion includes a first plate body and a second plate body. The first plate body and the second plate body are integrally connected. The first plate body is used for relative positioning with the clamping device of the luggage rack. The second plate body is disposed outside the luggage rack in the vehicle body Y direction. The lower end of the second plate body is integrally connected to the second mounting portion.

[0007] Further, the second mounting portion includes a third plate body and a fourth plate body. The third plate body is attached to the outer side of the vehicle body side wall along the upper contour of the vehicle body side wall. The fourth plate body is located below the third plate body and is attached to the outer side of the vehicle body side wall along the middle contour of the vehicle body side wall. The upper end of the third plate body is integrally connected to the first mounting portion.

[0008] Further, the second mounting portion further includes a back trim panel. The back trim panel is disposed on the side of the fourth plate body facing the vehicle body side wall. The second mounting portion abuts against the middle contour of the vehicle body side wall through the back trim panel.

[0009] Further, a drain hole for draining water is formed at the bottom of the back trim panel. The drain hole is used to communicate the external environment and the ladder housing.

[0010] Further, the second mounting portion further includes a magnetic seat plate. The magnetic seat plate is detachably disposed on the side of the second mounting portion facing the vehicle body side wall. The magnetic seat plate is used for attracting and engaging with the vehicle body side wall.

[0011] Further, the mounting frame further includes a support portion. The support portion is disposed between the second mounting portion and the ladder outer shell. The lower end of the support portion is disposed on the second mounting portion. The upper end of the support portion abuts against the inner wall of the ladder outer shell. The support portion is used for supporting the ladder outer shell in the vehicle body Y direction and the vehicle body Z direction.

[0012] Further, the present invention also includes a method for installing an automotive side ladder, which is used for installing the aforementioned automotive side ladder, and includes the following steps: Pre-hang the automotive side ladder to the vehicle body through the ladder outer shell and the mounting frame; Relatively fix the automotive side ladder to the vehicle body through the mounting frame.

[0013] The vehicle side ladder provided by the present invention is assembled with the vehicle body through an installation frame, provides the basic function of a ladder for users through the ladder body, and covers the installation frame and the retracted ladder body with a ladder housing, which has a beautiful appearance and is convenient to install. The vehicle side ladder in the present invention also has many advantages such as non-destructive and convenient installation, multiple anti-abnormal noise, beautiful structural design, strong load-bearing capacity, strong platformization / generalization ability, anti-wear, anti-leakage and rust prevention, anti-deformation, anti-slip, and meeting human-machine requirements, etc., so as to achieve non-destructive and convenient installation, save production beats, be suitable for large-scale mass production, and at the same time leave more options for car owners to disassemble and assemble the side ladder; through a powerful load-bearing capacity and a structural design with multiple anti-abnormal noise, anti-wear, rust prevention, and anti-deformation, the product quality is improved; it is more popular among car owners through its beautiful and natural appearance; the comfort of users is increased through anti-slip and human-machine size design; the application of new models is promoted and the cost is reduced by realizing the platformization and generalization of the structure BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the vehicle side ladder provided by the present invention when retracted.

[0014] Figure 2 It is a schematic diagram of the vehicle side ladder in the present invention when opened.

[0015] Figure 3 It is a side view of the vehicle side ladder in the present invention when opened.

[0016] Figure 4 It is a top view of the ladder housing in the present invention.

[0017] Figure 5 It is a schematic diagram of the first decorative panel, the third decorative panel, the support part and the second installation part in the present invention.

[0018] Figure 6 It is a schematic diagram of the second decorative panel and the first installation part in the present invention.

[0019] Figure 7 It is a schematic diagram of the first installation part and the roof rack in the present invention.

[0020] Figure 8 It is a schematic diagram of the back decorative panel and the second installation part in the present invention.

[0021] Figure 9 It is a schematic diagram of the installation frame and the ladder body in the present invention.

[0022] Figure 10 It is a schematic diagram of the vehicle body side wall and the invisible car film in the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] To further illustrate the technical means and effects adopted by the present invention to achieve the intended invention purpose, the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0024] It should be noted that the terms "first", "second", "third", "fourth", etc. in the description and claims of the present invention are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence.

[0025] The orientation terms such as "X direction", "Y direction" and "Z direction" in this specification respectively refer to the common "vehicle body X direction", "vehicle body Y direction" and "vehicle body Z direction" in the automotive field. Among them, the "vehicle body X direction" refers to the length direction of the vehicle body, which is also the front-back direction; the "vehicle body Y direction" refers to the width direction of the vehicle body, which is also the left-right direction, and the "inner side" and "outer side" refer to two relative orientations closer to the vehicle body and closer to the door respectively; the "vehicle body Z direction" refers to the height direction of the vehicle body, which is also the up-down direction.

[0026] Please refer to Figures 1 to 8 , the vehicle side ladder in the present invention includes a ladder housing 1, a mounting frame 2 and a ladder body 3. The ladder housing 1 covers the outside of the mounting frame 2. The mounting frame 2 includes a first mounting portion 21 and a second mounting portion 22. The first mounting portion 21 and the second mounting portion 22 are respectively used to mount the vehicle side ladder to the vehicle body along the vehicle body Z direction and the vehicle body Y direction. The ladder body 3 includes an inner support rod 31 and an outer support rod 32. The inner support rod 31 is integrally connected with the mounting frame 2. The outer support rod 32 can be opened or retracted relative to the inner support rod 31. The outer support rod 32 is for climbing. The ladder housing 1 is used to cover the outer support rod 32 in the vehicle body X direction and the vehicle body Z direction when the outer support rod 32 is retracted relative to the inner support rod 31. Specifically, in this embodiment, the first mounting portion 21 is used to mount the vehicle side ladder in the present invention to the luggage rack 4 on the top of the vehicle body, and the second mounting portion 22 is used to mount the vehicle side ladder in the present invention to the vehicle body side panel 5; the outer support rod 32 is arranged on the outer side of the inner support rod 31 in the Y direction, and the inner support rod 31 is arranged on the outer side of the mounting frame 2 in the Y direction. A parallel link 33 is also arranged between the outer support rod 32 and the inner support rod 31. The two ends of the parallel link 33 are respectively connected to the mounting frame 2 and the side of the inner support rod 31 facing the mounting frame 2 and can rotate relative to the mounting frame 2 and the inner support rod 31 respectively. Therefore, the outer support rod 32 can move relative to the mounting frame 2 through the parallel link 33. After the inner support rod 31 is retracted, the outer surface of the inner support rod 31 in the Y direction is flush with the outer surface of the ladder housing 1. The vehicle side ladder of the present invention is assembled with the vehicle body through the mounting frame 2, provides the basic function of a ladder for users through the ladder body 3, and covers the mounting frame 2 and the retracted ladder body 3 through the ladder housing 1, with a beautiful appearance and convenient installation.

[0027] Please pay special attention to Figure 5 ,Figure 6 , Figure 7 and Figure 8 , further, the first mounting portion 21 in the present invention is located at the top of the mounting frame 2, and is also located above the vehicle body side wall 5 at the roof rack 4. It includes a first plate body 211 and a second plate body 212 that are integrally connected. The first plate body 211 is disposed above the roof rack 4 in the vehicle body Z direction, and the second plate body 212 is disposed outside the roof rack 4 in the vehicle body Y direction. Specifically, in this embodiment, the first plate body 211 is a plate body that spreads and extends in the vehicle body X-Y plane, and the second plate body 212 is a plate body that spreads and extends approximately in the vehicle body X-Z plane. That is, the first plate body 211 is horizontally disposed at the top of the mounting frame 2 and above the roof rack 4; the second plate body 212 is vertically disposed on one side of the first plate body 211, that is, the second plate body 212 is longitudinally disposed outside the roof rack 4; the first plate body 211 and the second plate body 212 are integrally connected and enclose an inverted "L" shape in the vehicle body Y-Z plane, and the opening of the "L" shape structure faces the roof rack 4; a first mounting hole 21a is formed on the first plate body 211, and the clamping device 41 of the roof rack 4 passes through the first mounting hole 21a from below the first mounting hole 21a and protrudes from the surface of the first plate body 211. The first plate body 211 is relatively fixed to the clamping device 41 of the roof rack 4 through the first mounting hole 21a in the vehicle body X-Y plane, and the clamping device 41 is used for relatively clamping and fixing with the ladder housing 1; the upper end of the second plate body 212 is integrally connected to the first plate body 211, and the lower end of the second plate body 212 is integrally connected to the second mounting portion 22.

[0028] Please refer to Figure 4 more specifically, the first mounting portion 21 further includes a noise reduction portion 7. The noise reduction portion 7 is disposed in front of the first mounting portion 21 along the vehicle body X direction, and the noise reduction portion 7 is used to relatively seal the first plate body 211, the second plate body 212 and the roof rack 4. Specifically, in this embodiment, the noise reduction portion 7 is a noise reduction foam bonded between the first plate body 211, the second plate body 212 and the roof rack 4. It is easy to understand that the noise reduction portion 7 is disposed in front of the first mounting portion 21 along the vehicle body X direction, that is, on the windward surface of the first mounting portion 21. Bonding the noise reduction foam on the windward surface can prevent air from entering between the first mounting portion 21 and the roof rack 4, effectively preventing abnormal noises and noises generated by the first mounting portion 21 and the roof rack 4 under the blowing during vehicle driving. Since the first plate body 211 and the second plate body 212 in this embodiment enclose an "L" shape with the opening facing the roof rack 4, the noise reduction foam not only includes the "L" shape portion corresponding to the first plate body 211 and the second plate body 212, but also includes the portion that wraps the roof rack 4 from the other side opposite to the first plate body 211, and the "L" shape portion forms an approximately inverted "U" shape structure to prevent air from entering the first mounting portion 21.

[0029] Further, the second mounting portion 22 in the present invention is located below the first mounting portion 21 and also on the outer side of the side wall. It includes a third plate body 221 and a fourth plate body 222. The third plate body 221 is located below the first mounting portion 21 and is attached to the outer side of the vehicle body side wall 5 along the upper contour of the vehicle body side wall 5. The fourth plate body 222 is located below the third plate body 221 and is attached to the outer side of the vehicle body side wall 5 along the middle contour of the vehicle body side wall 5. Specifically, in this embodiment, the third plate body 221 and the fourth plate body 222 are integrally connected, and the third plate body 221 is also integrally connected to the second plate body 212 above it. That is to say, the first plate body 211, the second plate body 212, the third plate body 221, and the fourth plate body 222 are integrally connected from top to bottom; the upper end of the third plate body 221 is integrally connected to the lower end of the second plate body 212, the lower end of the third plate body 221 is located outside the upper end of the third plate body 221 in the vehicle body Y direction, and the third plate body 221 is in an arc shape protruding outward from the vehicle body in the vehicle body Y-Z plane; the upper end of the fourth plate body 222 is integrally connected to the lower end of the third plate body 221, the fourth plate body 222 is arranged on the outer side of the vehicle body side wall 5 and extends along the vehicle body Z direction towards the charging port 51 on the vehicle body side wall 5, and the two fourth plate bodies 222 are obtained by the third plate body 221 extending downward from the front and rear ends in the vehicle body X direction. Particularly, the lower end of the fourth plate body 222 is bent outward from the vehicle body side wall 5 and slightly protrudes to avoid the direct contact between the lower end of the fourth plate body 222 and the vehicle body side wall 5, preventing scratching of the vehicle body when using the side ladder.

[0030] Please refer specifically to Figure 7 , furthermore, the second mounting portion 22 further includes a back trim panel 223. The back trim panel 223 is arranged on the side of the fourth plate body 222 facing the vehicle body side wall 5, and the second mounting portion 22 abuts against the middle contour of the vehicle body side wall 5 through the back trim panel 223. Specifically, in this embodiment, the back trim panel 223 is assembled with the fourth plate body 222 by bolts, and the lower end of the back trim panel 223 is set to be arc-shaped to fit the lower end of the curved fourth plate body 222; the back trim panel 223 can not only support the mounting frame 2 and the ladder housing 1 thereon in the vehicle body Y direction by abutting against the middle of the vehicle body side wall 5, absorbing part of the deformation generated during the manufacturing process, but also block the complex and messy structures inside the mounting frame 2 and the ladder housing 1 from the vehicle body side, improving the overall aesthetics. In addition, a drain hole 6 for draining water is also provided at the bottom of the back trim panel 223. The drain hole 6 communicates with the external environment and the inside of the ladder housing. The drain hole 6 can naturally drain the rain and snow falling into the ladder housing 1 during rainy and snowy weather under the action of gravity, preventing the ladder body 3 and the mounting frame 2 from accumulating water and rusting.

[0031] Please refer specifically to Figure 7Furthermore, the second mounting portion 22 further includes a magnetic seat plate 224, which is detachably disposed on the side of the second mounting portion 22 facing the vehicle body side 5 and on the fourth plate 222, and is used to engage with the vehicle body side 5. Specifically, in this embodiment, the magnetic seat plate 224 is disposed at the lower part of the second plate 212, between the two fourth plates 222, and is also located between the back trim plates 223 on the two fourth plates 222. The magnetic seat plate 224 is connected to the fourth plate 222 as a whole by bolts. Please refer to Figure 10 The automobile side ladder in the present invention uses a detachable magnetic seat plate 224 to attract the second mounting portion 22, that is, the lower half of the mounting frame 2, to the vehicle body side 5, and then cooperates with the invisible car cover 52 and the anti-wear cushion pad 53 on the vehicle body side 5 to protect the surface paint and prevent scratches when stepping on the ladder. The assembly steps are simple and the labor cost is low. In addition, when adapting to the side of different models, it is only necessary to adjust the surface of the magnetic seat plate 224 without re-molding. The automobile side ladder in the present invention thus realizes the platformization and universalization of the mounting frame 2. Compared with the traditional side ladder, the mounting frame 2 in the present invention is pre-hung on the luggage rack 4 through the first mounting portion 21 located at the top, and the second mounting portion 22 located at the bottom is magnetically attached to the vehicle body side 5, eliminating the need to drill holes in the vehicle body side 5 and other measures that damage the vehicle body. Even if the automobile side ladder is removed, the vehicle body can be restored to its original state, greatly improving the assembly efficiency while reducing the development cost.

[0032] Please refer to Figure 4 , Figure 5 and Figure 6, Further, the ladder housing 1 in the present invention includes a first decorative panel 11, a second decorative panel 12, and a third decorative panel 13. The first decorative panel 11 is disposed above the luggage rack 4 and the first mounting portion 21. The first decorative panel 11 is used to cover the luggage rack 4 and the first mounting portion 21 in the vehicle body Z direction. The first decorative panel 11 also wraps the luggage rack 4 and the first mounting portion 21 in the vehicle body X direction and the vehicle body Y direction respectively; the second decorative panel 12 is disposed above the second mounting portion 22 and the ladder body 3. The second decorative panel 12 is used to cover the second mounting portion 22 and the ladder body 3 in the vehicle body Z direction. The second decorative panel 12 also wraps the second mounting portion 22 in the vehicle body X direction and the vehicle body Y direction respectively; the third decorative panel 13 is disposed between the first decorative panel 11 and the second decorative panel 12. The third decorative panel 13 is also disposed above the mounting frame 2 in the vehicle body Z direction. The third decorative panel 13 is used to beautify the connection between the first decorative panel 11 and the second decorative panel 12. The third decorative panel 13 is also used to drain rain and snow falling on the ladder housing 1 into the ladder housing 1. Specifically, in this embodiment, the first decorative panel 11 is sleeved outside the luggage rack 4. The first decorative panel 11 is disposed along the extending direction of the luggage rack 4 in the vehicle body X direction. The outer shape of the first decorative panel 11 is approximately cylindrical and wraps the first plate body 211, the second plate body 212, and the luggage rack 4 therein. The first decorative panel 11 is fixedly clamped and connected with the clamping device 41. One end of the first decorative panel 11 close to the rear of the vehicle wraps the end of the luggage rack 4. One end of the first decorative panel 11 close to the front of the vehicle is adhesively sealed with the noise reduction portion 7; the second decorative panel 12 includes an upper housing 121 with an arc-shaped outer shape and a lower housing 122 with a cylindrical outer shape. The upper housing 121 and the lower housing 122 are integrally formed. The top end of the upper housing 121 is respectively connected and integrated with the first decorative panel 11 and the third decorative panel 13. The upper housing 121 is located outside the first plate body 211 and the second plate body 212 in the vehicle body Y direction and above the third plate body 221 in the vehicle body Z direction. The upper housing 121 wraps the third plate body 221 and the support portion 23. The size of the upper housing 121 in the vehicle body Z direction is larger than the size of the ladder body 3 in the vehicle body Z direction when the ladder body 3 is stored, so as to cover the ladder body 3 when the ladder body 3 is stored, with a beautiful shape; the junction of the upper housing 121 and the lower housing 122 is located outside the junction of the third plate body 221 and the fourth plate body 222 in the vehicle body Y direction, that is, the second plate body 212 changes from an arc shape corresponding to the third plate body 221 to two cylindrical shapes corresponding to the fourth plate body 222 at this position; the lower housing 122 is disposed outside the fourth plate body 222 and the back decorative panel 223 in the vehicle body Y direction, and is located on the opposite side of the back decorative panel 223 relative to the fourth plate body 222 at the same time. The lower housing 122 wraps the fourth plate body 222. The bottom end of the lower housing 122 abuts against and is connected and integrated with the back decorative panel 223; the third decorative panel 13 is integrally formed with the first decorative panel 11. The outer side of the third decorative panel 13 in the vehicle body Y direction is connected and integrated with the second decorative panel 12. The outer shape of the third decorative panel 13 is approximately oblong.

[0033] Please refer specifically to Figure 5, Figure 6 and Figure 9 , in particular, the mounting frame 2 in the present invention further includes a support portion 23. The support portion 23 is disposed between the second mounting portion 22 and the ladder housing 1. The lower end of the support portion 23 is disposed on the second mounting portion 22, and the upper end of the support portion 23 abuts against the inner wall of the ladder housing 1. The support portion 23 is used to support the ladder housing 1 in the vehicle body Y direction and the vehicle body Z direction. Specifically, in this embodiment, the lower end of the support portion 23 is integrally connected to the third plate body 221 of the second mounting portion 22, and the upper end of the support portion 23 is integrally connected to the second decorative plate 12 and the third decorative plate 13 of the ladder housing 1 respectively; the dimension of the support portion 23 in the vehicle body Y direction, so the support portion 23 overlaps and is fixed to both the second decorative plate 12 and the third decorative plate 13 in the vehicle body Z direction at the same time. The dimension of the support portion 23 in the vehicle body Z direction is approximately the same as the dimension of the second plate body 212 in the Z direction, so that the second decorative plate 12 and the third decorative plate 13 above the support portion 23 have an approximate Z-direction height with the first decorative plate 11 above the second plate body 212. Since the ladder housing 1 in the present invention is made of a relatively soft PP+EPDM+TD20 material, it is easy to deform during the injection molding process, which may lead to abnormal wear or poor matching due to local deformation interference during installation. The support portion 23 can provide Y-direction and Z-direction support for the ladder housing 1 at the position where it is easy to deform, thus compensating for the possible Y-direction and Z-direction deformation amounts generated during the production process of the ladder housing 1, making the appearance of the ladder housing 1 beautiful and upright.

[0034] Please refer with emphasis to Figure 5 and Figure 6, Further, a plurality of first buckles 111 are provided on the first trim panel 11, and a plurality of first positioning pins 134 are respectively provided on the second trim panel 12 and the third trim panel 13. The first trim panel 11 is relatively assembled and fixed to the buckle mounting portion 121 on the second trim panel 12 through the first buckles 111, and the second trim panel 12 and the third trim panel 13 are relatively positioned with the support portion 23 through the first positioning pins 134. Specifically, in this embodiment, the first buckles 111 are provided on one side of the first trim panel 11 facing the second trim panel 12 in the vehicle body Y direction and at the connection between the first trim panel 11 and the second trim panel 12. The first buckles 111 are provided at the top of the first trim panel 11 in the Z direction and protrude downward from the top of the first trim panel 11. The first buckles 111 are used for snap - fitting with the buckle mounting portion 121 on the second trim panel 12 to assemble the first trim panel 11 and the second trim panel 12 into one body; the positioning pins on the third trim panel 13 are provided at the top of the third trim panel 13 in the vehicle body Z direction and protrude downward from the top of the third trim panel 13. The first positioning pins 134 are used for extending into the positioning holes on the support portion 23 to relatively position the second trim panel 12, the third trim panel 13 and the support portion 23; the buckle mounting portion 121 on the second trim panel 12 is located on one side of the second trim panel 12 facing the first trim panel 11 in the vehicle body Y direction and at the connection between the first trim panel 11 and the second trim panel 12. The buckle mounting portion 121 is provided at the top of the second trim panel 12 in the Z direction and extends from the top of the second trim panel 12 in the X - Y plane towards the first trim panel 11. Since the first trim panel 11 and the third trim panel 13 are integrally formed, the first trim panel 11 and the third trim panel 13 are respectively relatively fixed to the second trim panel 12 and the support portion 23 through the first buckles 111 and the first positioning pins 134, and further realize relative fixation with the mounting frame 2. The ladder housing 1 in the present invention is relatively fixed to the luggage rack 4 through the first trim panel 11, relatively fixed to the mounting frame 2 through the second trim panel 12, and relatively fixed to the support portion 23 through the third trim panel 13. By this multi - point fixation method, the structure between the ladder housing 1 and the mounting frame 2 is ensured to be firm and reliable.

[0035] Please refer specifically to Figure 4 , Figure 5 and Figure 6Furthermore, the third trim panel 13 is provided with a first gap 131, a second gap 132 and a leakage portion 133. The first gap 131 is located at the connection between the third trim panel 13 and the first trim panel 11. The first gap 131 is substantially sealed, and only has a gap-shaped sealing structure in appearance. The second gap 132 is located between the third trim panel 13 and the second trim panel 12. The leakage portion 133 is located in the middle of the third trim panel 13. Rain and snow can fall into the ladder housing 1 from the second gap 132 and / or the leakage portion 133. Specifically, in this embodiment, since the first trim panel 11 and the third trim panel 13 are integrally formed, but the third trim panel 13 and the second trim panel 12 are not integrally formed, there will inevitably be a gap at the connection between the two. Therefore, for the beauty of the ladder housing 1, it is necessary to set a "false gap" between the third trim panel 13 and the first trim panel 11 to present an appearance corresponding to the "real gap" between the third trim panel 13 and the second trim panel 12, so that the appearance of the ladder housing 1 is more coordinated and symmetrical; the leakage portion 133 is located above the support portion 23 in the Z direction of the vehicle body, and between the first trim panel 11 and the second trim panel 12 in the Y direction of the vehicle body. The leakage portion 133 is a grid-like hollow structure opened in the middle of the third trim panel 13. In particular, for the beauty of the ladder housing 1, other shapes of hollow structures, such as wave-shaped, etc., can also be selected as long as rain and snow can leak into it; the first gap 131 and the second gap 132 form a circle similar to the outline of the third trim panel 13 on the XY plane of the vehicle body. The ladder housing 1 in the present invention shields the messy and complex structure of the installation frame 2 from multiple directions through the first trim panel 11, the second trim panel 12, the third trim panel 13 and the back trim panel 223, so that the housing presents a natural and beautiful visual effect.

[0036] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 9, Further, the ladder body 3 in the present invention includes an inner support rod 31, a parallel link 33, and an outer support rod 32. The inner support rod 31 is connected to the mounting frame 2 and extends along the vehicle body Z-direction on the mounting frame 2. One end of the parallel link 33 is rotatably connected to the inner support rod 31, and the other end of the parallel link 33 is rotatably connected to the outer support rod 32. The parallel link 33 can rotate relative to both the inner support rod 31 and the outer support rod 32 simultaneously to open the outer support rod 32 parallel to the inner support rod 31 for climbing. Specifically, taking the posture after the outer support rod 32 rotates and opens relative to the inner support rod 31 as a reference, in this embodiment, the inner support rod 31 is located below the third plate body 221 in the vehicle body Z-direction, outside the fourth plate body 222 in the vehicle body Y-direction, and is bolted and integrated with the fourth plate body 222. The magnetic attraction seat plate 224 is also bolted and integrated with the inner support rod 31 respectively; the two sets of parallel links 33 are arranged one above the other in the vehicle body Z-direction at the middle and bottom of the inner support rod 31 in the vehicle body Z-direction. Therefore, a total of four parallel links 33 are arranged on the inner support rod 31; the outer support rod 32 is located below the third plate body 221 in the vehicle body Z-direction and outside the inner support rod 31 and the parallel link 33 in the vehicle body Y-direction. The parallel link 33 is located at the top and middle of the outer support rod 32 in the vehicle body Z-direction. That is to say, the connection relationship among the inner support rod 31, the parallel link 33, and the outer support rod 32 is approximately in a horizontally placed "Z" shape in the vehicle body Y-Z plane, and both included angles change as the ladder body 3 is opened or closed; when opening the ladder body 3, the inner support rod 31 remains stationary, the outer support rod 32 moves outward along the vehicle body Y-direction and downward along the vehicle body Z-direction relative to the inner support rod 31, and the parallel link 33 rotates from vertical to horizontal during this process. When retracting the ladder body 3, the inner support rod 31 remains stationary, the outer support rod 32 moves inward along the vehicle body Y-direction and upward along the vehicle body Z-direction relative to the inner support rod 31, and the parallel link 33 rotates from horizontal to vertical during this process. It is easy to understand that a rotating part is respectively arranged between the inner support rod 31 and the parallel link 33 and between the parallel link 33 and the outer support rod 32. The rotating part can respectively enable the inner support rod 31 and the parallel link 33 to rotate relative to each other and enable the parallel link 33 and the outer support rod 32 to rotate relative to each other. A limiting device for restricting the relative rotation angle is also arranged inside the rotating part. A part of the ladder body 3 in the present invention is made of aluminum alloy, and other key support parts, such as the inner support rod 31, the outer support rod 32, and the rotating parts at the joints, etc., are made of zinc alloy with stronger bearing capacity to greatly enhance the bearing capacity of the ladder body 3. In addition, the present invention also makes a gap exist between the climbable outer support rod 32 and the vehicle body through the parallel link 33, avoiding the noise and abnormal noise caused by the increase in the windward area due to the side ladder being closely attached to the vehicle body.

[0037] Further, the outer support rod 32 includes a first ladder body 321 and a second ladder body 322. The first ladder body 321 and the second ladder body 322 are connected as a whole. The second ladder body 322 can be rotated and opened relative to the first ladder body 321. The first ladder body 321 is integrally connected to the parallel link 33, and the first ladder body 321 can be rotated and opened relative to the parallel link 33. The first ladder body 321 and the second ladder body 322 are available for climbing. One end of the second ladder body 322 is rotatably connected to the bottom of the first ladder body 321. Therefore, the second ladder body 322 can be rotated relative to the first ladder body 321 so that the other end of the second ladder body 322 is rotated and opened to a position away from the first ladder body 321. Specifically, taking the attitude after the second ladder body 322 is rotated and opened relative to the first ladder body 321 as a reference, in this embodiment, a rotating part is provided at the connection between the first ladder body 321 and the second ladder body 322. The first ladder body 321 includes a first cross bar 321a, a second cross bar 321b, and a third cross bar 321c arranged from top to bottom in the vehicle body Z direction, and a first vertical bar 321d and a second vertical bar 321e arranged from front to back in the vehicle body X direction. The first cross bar 321a, the second cross bar 321b, and the third cross bar 321c are the footholds of the ladder, and the first vertical bar 321d and the second vertical bar 321e are the handrails of the ladder. The first cross bar 321a, the second cross bar 321b, the third cross bar 321c, the first vertical bar 321d, and the second vertical bar 321e are connected and enclosed to form an approximate "day" shape, that is, the second cross bar 321b is located between the first cross bar 321a and the third cross bar 321c, and the first vertical bar 321d and the second vertical bar 321e are respectively located on both sides of the first cross bar 321a, the second cross bar 321b, and the third cross bar 321c; a rotating part is provided at the lower end of the first ladder body 321, and the first ladder body 321 is rotatably connected to the second ladder body 322 through the rotating part at its lower end. Similarly, the second ladder body 322 includes a fourth cross bar 322a, a fifth cross bar 322b, and a sixth cross bar 322c arranged from top to bottom in the vehicle body Z direction, and a third vertical bar 322e and a fourth vertical bar 322f arranged from front to back in the vehicle body X direction. The fourth cross bar 322a, the fifth cross bar 322b, and the sixth cross bar 322c are the footholds of the ladder, that is, the ladder stools, and the third vertical bar 322e and the fourth vertical bar 322f are the handrails of the ladder. The fourth cross bar 322a, the fifth cross bar 322b, the sixth cross bar 322c, the third vertical bar 322e, and the fourth vertical bar 322f are connected and enclosed to form an inverted "day" shape, that is, the fifth cross bar 322b is located between the fourth cross bar 322a and the sixth cross bar 322c, and the third vertical bar 322e and the fourth vertical bar 322f are respectively located on both sides of the fourth cross bar 322a, the fifth cross bar 322b, and the sixth cross bar 322c; a rotating part is provided at the upper end of the second ladder body 322, and the second ladder body 322 is rotatably connected to the first ladder body 321 through the rotating part at its upper end.Understandably, when the outer support rod 32 is in the retracted state, the first ladder body 321 is arranged inside the second ladder body 322 in the vehicle body Y direction, and the connection part between the two is located below the first ladder body 321 and below the second ladder body 322; when the outer support rod 32 is in the opened state, the first ladder body 321 is arranged inside the second ladder body 322 in the vehicle body Y direction, and the first ladder body 321 is arranged above the second ladder body 322 in the Z direction, and the connection part between the two is located below the first ladder body 321 and above the second ladder body 322. In particular, when the second ladder body 322 rotates and retracts relative to the first ladder body 321, the first ladder body 321 and the second ladder body 322 form a "V" shape with a very small angle in the vehicle body Y-Z plane, and the angle between the two increases as the outer support rod 32 is opened. When the second ladder body 322 rotates and opens relative to the first ladder body 321, the angle between the first ladder body 321 and the second ladder body 322 is in the maximum state. Under the limit of the rotating part, the maximum relative rotation angle between the first ladder body 321 and the second ladder body 322 is about 190°, and the first ladder body 321 and the second ladder body 322 form an obtuse angle with an opening facing the vehicle body and an angle of 170° - 175°. In the present invention, through this design of the maximum relative rotation angle, the first ladder body 321 and the second ladder body 322 are made closer to the vehicle body, the force arm is reduced, thereby reducing the load of the side ladder on the vehicle body, and enhancing the load-bearing capacity of the vehicle body. The designed load-bearing capacity of the ladder body in the present invention should be greater than or equal to 150KG. In addition, the present invention also introduces the concept of human dimensions. After a large number of human comfort investigations, the relevant dimensional parameters of the first ladder body 321 and the second ladder body 322 after deployment are specified to make the vehicle side ladder more comfortable and convenient to use. In a preferred embodiment of the present invention, after the first ladder body 321 and the second ladder body 322 are opened, considering the comfort of the leg stretching space for human climbing, the distance between adjacent two cross bars should be greater than or equal to 170mm; considering the human foot width and the ability to stand with both legs at the same time, the X-direction dimension of any cross bar should be greater than or equal to 220mm; considering that the human foot sole can stand firmly, the Y-direction dimension of any cross bar should be greater than or equal to 25mm; considering that there is enough stretching space for the front toes after the human foot stands, the distance between any cross bar and the vehicle body should be greater than or equal to 100mm.

[0038] Further, anti-slip portions 34 for preventing foot slippage are also provided on the first ladder body 321 and the second ladder body 322. Specifically, taking the posture after the second ladder body 322 rotates and opens relative to the first ladder body 321 as a reference, in this embodiment, the anti-slip portion 34 includes anti-slip rubber pads provided on the tops of the first cross bar 321a, the second cross bar 321b, the third cross bar 321c, the fourth cross bar 322a, the fifth cross bar 322b, and the sixth cross bar 322c. The anti-slip rubber pads are respectively laid along the vehicle body X direction on the first cross bar 321a, the second cross bar 321b, the third cross bar 321c, the fourth cross bar 322a, the fifth cross bar 322b, and the sixth cross bar 322c to provide sufficient foot stepping width for the user. Particularly, the anti-slip rubber pad located on the first cross bar 321a will be received under the second decorative panel 12 of the ladder housing 1 along the vehicle body Y direction when the ladder body 3 and the ladder housing 1 are relatively retracted and is not visible from outside the vehicle. The first ladder body 321 and the second ladder body 322 in the present invention avoid the user from slipping down in rainy and snowy weather through the anti-slip portion 34.

[0039] Furthermore, a buffer portion is provided on the ladder body 3 to buffer when the second ladder body 322 rotates and retracts relative to the first ladder body 321 or when the outer support rod 32 rotates and retracts relative to the inner support rod 31. The buffer portion can abut against the inner support rod 31 and the outer support rod 32 respectively to reduce the impact force and abnormal noise generated by the collision between the two when the second ladder body 322 rotates and retracts relative to the first ladder body 321. Specifically, taking the posture after the second ladder body 322 rotates and opens relative to the first ladder body 321 as a reference, in this embodiment, the buffer portion includes a first buffer block 351, a second buffer block 352, a third buffer block 353, and a fourth buffer block 354 provided on the inner support rod 31, and a fifth buffer block 355 and a sixth buffer block 356 provided on the second ladder body 322. The first buffer block 351, the second buffer block 352, the third buffer block 353, and the fourth buffer block 354 protrude from the outer side of the inner support rod 31 along the vehicle body Y direction. The first buffer block 351 and the second buffer block 352 are located on the upper part of the inner support rod 31 and close to the upper shell 121 in the vehicle body Z direction, and the first buffer block 351 and the second buffer block 352 are also located on the front side and the rear side of the inner support rod 31 in the vehicle body X direction respectively; the third buffer block 353 and the fourth buffer block 354 are located on the lower part of the inner support rod 31 and close to the charging port 51 on the side wall in the vehicle body Z direction, and the third buffer block 353 and the fourth buffer block 354 are also located on the front side and the rear side of the inner support rod 31 in the vehicle body X direction respectively; the fifth buffer block 355 and the sixth buffer block 356 protrude from the outer side of the second ladder body 322 along the vehicle body Y direction. The fifth buffer block 355 and the sixth buffer block 356 are located above the sixth cross bar 322c and below the fifth cross bar 322b in the vehicle body Z direction, and the fifth buffer block 355 and the sixth buffer block 356 are located on the front side and the rear side of the outer support rod 32 in the vehicle body X direction. The ladder body 3 in the present invention prevents abnormal noise caused by collision during vehicle driving through the buffer portion, and has a good use experience.

[0040] Please refer particularly to Figure 2 and Figure 9, Further, the vehicle side ladder in the present invention further includes a switch device, which includes a lock body 81 and a lock catch 82. The lock body 81 is arranged on the mounting frame 2, and the lock catch 82 is arranged on the ladder body 3. The lock catch 82 can be inserted into the lock body 81 to be locked relative to the lock catch 82, thereby locking the mounting frame 2 and the ladder body 3 relative to each other. Specifically, in this embodiment, the lock body 81 is located on the third plate body 221 of the mounting frame 2. The lock body 81 protrudes outside the third plate body 221 in the vehicle body Y direction and is located below the upper housing 121 in the vehicle body Z direction. Therefore, it is not visible when the ladder body 3 and the ladder housing 1 are retracted relative to each other; the lock catch 82 is located at the bottom end of the second ladder body 322, on the sixth cross bar 322c. The lock body 81 protrudes outside the sixth cross bar 322c in the vehicle body Y direction. The switch device in the present invention is arranged in the middle of the third plate body 221 and the sixth cross bar 322c, avoiding the offset scheme of the lock body 81 of the conventional side ladders on the market at present, and is not prone to looseness and abnormal noise.

[0041] Further, the present invention also includes a method for installing a vehicle side ladder, which includes first pre-hanging the vehicle side ladder on the vehicle body, and then relatively fixing the vehicle side ladder to the vehicle body. Specifically, the following steps are as follows: Stick the invisible car wrap 52 to the vehicle body side panel 5; Place the upper half of the mounting frame 2 on the roof rack 4, and pass the clamping device 41 of the roof rack 4 through the first mounting hole 21a; Use the magnetic adsorption seat plate 224 to suck and combine the lower half of the mounting frame 2 with the area on the vehicle body side panel 5 where the invisible car wrap 52 is pasted; Lock the first mounting portion 21 to the roof rack 4 with bolts; Insert the first positioning pin 134 on the third trim plate 13 into the positioning hole on the support portion 23, snap the first buckle 111 on the first trim plate 11 with the buckle mounting portion 121 on the second trim plate 12 into one body, and snap the clamping device 4 with the first trim plate 11 into one body; Bond the noise reduction portion 7 with the first trim plate 11 into one body; Bond the anti-wear buffer pad 53 to the vehicle body side panel 5 into one body.

[0042] In summary, the side ladder of the vehicle of the present invention is assembled with the vehicle body through the installation frame, provides the basic function of the ladder for users through the ladder body, and covers the installation frame and the retracted ladder body through the ladder housing, with beautiful appearance and convenient installation. The side ladder of the vehicle in the present invention also has many advantages such as lossless and convenient installation, multiple anti-abnormal noise, beautiful structural design, strong load-bearing capacity, strong platform / generalization ability, anti-wear, leakage prevention and rust prevention, anti-deformation, anti-slip, and meeting human-machine requirements, etc., so as to achieve lossless and convenient installation, save production beats, be suitable for large-scale mass production, and at the same time leave more options for car owners to disassemble and assemble the side ladder; through the powerful load-bearing capacity and the structural design of multiple anti-abnormal noise, anti-wear, rust prevention, and anti-deformation, the product quality is improved; it is more popular with car owners through the beautiful and natural appearance; the comfort of users is increased through the anti-slip and human-machine size design; the application of new models is promoted and the cost is reduced by realizing the platformization and generalization of the structure.

[0043] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An automobile side ladder, characterized in that: It includes a ladder housing (1), a mounting frame (2) and a ladder body (3). The ladder housing (1) covers the outside of the mounting frame (2). The mounting frame (2) includes a first mounting portion (21) and a second mounting portion (22). The first mounting portion (21) and the second mounting portion (22) are respectively used to mount the vehicle side ladder to the vehicle body along the vehicle body Z direction and the vehicle body Y direction. The ladder body (3) includes an inner support rod (31) and an outer support rod (32). The inner support rod (31) is integrally connected with the mounting frame (2). The outer support rod (32) can be opened or retracted relative to the inner support rod (31). The outer support rod (32) is for climbing. The ladder housing (1) is used to cover the outer support rod (32) in the vehicle body X direction and the vehicle body Z direction when the outer support rod (32) is retracted relative to the inner support rod (31).

2. The side ladder for vehicle according to claim 1, wherein: The ladder housing (1) includes a first decorative panel (11) and a second decorative panel (12). The first decorative panel (11) is integrally connected with the second decorative panel (12). The first decorative panel (11) is arranged above the roof rack (4) along the vehicle body Z direction and is integrally connected with the roof rack (4). The first decorative panel (11) is also integrally connected with the mounting frame (2). The first decorative panel (11) is used to cover the roof rack (4) and the first mounting portion (21). The second decorative panel (12) is arranged above the mounting frame (2) and the ladder body (3) along the vehicle body Y direction. The second decorative panel (12) is used to cover the second mounting portion (22) and the ladder body (3).

3. The side ladder for vehicle according to claim 2, characterized in that: The ladder housing (1) further includes a third decorative panel (13). The third decorative panel (13) is arranged between the first decorative panel (11) and the second decorative panel (12) in the vehicle body Y direction. The third decorative panel (13) is also arranged above the mounting frame (2) in the vehicle body Z direction. The third decorative panel (13) is used to beautify the connection between the first decorative panel (11) and the second decorative panel (12). The third decorative panel (13) is also used to drain rain and snow falling on the ladder housing (1) into the ladder housing (1).

4. The side ladder for vehicle according to claim 1, wherein: The first mounting portion (21) includes a first plate body (211) and a second plate body (212). The first plate body (211) and the second plate body (212) are integrally connected. The first plate body (211) is used for relative positioning with the clamping device of the roof rack (4). The second plate body (212) is arranged outside the roof rack (4) in the vehicle body Y direction. The lower end of the second plate body (212) is integrally connected with the second mounting portion (22).

5. The side ladder for vehicle according to claim 1, wherein: The second mounting portion (22) includes a third plate body (221) and a fourth plate body (222). The third plate body (221) is attached to the outer side of the vehicle body side wall (5) along the upper contour of the vehicle body side wall (5), and the fourth plate body (222) is located below the third plate body (221) and is attached to the outer side of the vehicle body side wall (5) along the middle contour of the vehicle body side wall (5). The upper end of the third plate body (221) is integrally connected to the first mounting portion (21).

6. The side ladder for vehicle according to claim 5, wherein: The second mounting portion (22) further includes a back trim panel (223). The back trim panel (223) is disposed on the side of the fourth plate body (222) facing the vehicle body side wall (5). The second mounting portion (22) abuts against the middle contour of the vehicle body side wall (5) through the back trim panel (223).

7. The vehicle side ladder according to claim 6, characterized in that: A drain hole (6) for draining water is formed at the bottom of the back trim panel (223). The drain hole (6) is used to communicate the external environment and the ladder housing.

8. The side ladder for vehicle according to claim 1, characterized in that: The second mounting portion (22) further includes a magnetic suction seat plate (224). The magnetic suction seat plate (224) is detachably disposed on the side of the second mounting portion (22) facing the vehicle body side wall (5). The magnetic suction seat plate (224) is used to attract and engage with the vehicle body side wall (5).

9. The side ladder for vehicle according to claim 1, wherein: The mounting frame (2) further includes a support portion (23). The support portion (23) is disposed between the second mounting portion (22) and the ladder housing (1). The lower end of the support portion (23) is disposed on the second mounting portion (22), and the upper end of the support portion (23) abuts against the inner wall of the ladder housing (1). The support portion (23) is used to support the ladder housing (1) along the vehicle body Y direction and the vehicle body Z direction.

10. A method for installing a side ladder on an automobile, characterized in that: It is used for installing the vehicle side ladder as described in any one of claims 1 to 9, and includes the following steps: Pre-hang the vehicle side ladder to the vehicle body through the ladder housing (1) and the mounting frame (2); Relatively fix the vehicle side ladder to the vehicle body through the mounting frame (2).

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