Folding ladder stand installed on automobile
By introducing adjustment and climbing mechanisms into the car's folding ladder, automatic flipping and splicing are achieved, solving the problems of space occupation and laborious operation, and providing an automated, time-saving and labor-saving user experience and an anti-falling function for items.
Patent Information
- Application Number
- CN202511041472.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2025-09-19
AI Technical Summary
The existing folding ladder for automobiles takes up a large space, is time-consuming and labor-intensive to fold and unfold, has a single function, and objects are easily dropped from the top of the automobile during the climbing process.
The adjustment mechanism and ladder mechanism are used to realize the automatic flipping, opening and folding of the ladder. The motor drives the worm gear structure and the hydraulic telescopic rod to automatically adjust the fence spacing and ladder splicing, and provides a grille baffle to prevent items from falling off.
It realizes the automated operation of the ladder, saves manpower, has high space utilization efficiency, prevents items from falling, assists in climbing and picking up goods, and saves time and effort in the folding and unfolding process.
Smart Images
Figure CN120663845A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of folding ladders for automobiles, and in particular to a folding ladder installed on an automobile. Background Art
[0002] A folding ladder is a foldable climbing aid, usually installed on the outside of a car, to help users safely climb to heights or complete specific operations. It is often used in outdoor activities: to facilitate the removal and placement of roof luggage, tents and other items, off-road or truck transportation: to assist in getting on and off high-chassis vehicles or loading and unloading cargo, and maintenance / inspection: to temporarily climb and inspect equipment on the top of the vehicle (such as antennas, air conditioners, etc.).
[0003] The existing folding ladders installed on cars are mostly installed on the side of the vehicle, which takes up a lot of space during use. In addition, they mostly require manual assistance to fold and unfold, which is time-consuming and labor-intensive. The existing folding ladders installed on cars mostly have only one function of assisting people to climb to a specified height, and their functions are relatively simple.
[0004] Therefore, it is necessary to provide a folding ladder installed on a car to solve the above problems.
[0005] It should be noted that the above information disclosed in this Background section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute prior art. Summary of the Invention
[0006] Based on the above-mentioned problems existing in the prior art, the problem to be solved by the present application is: to provide a folding ladder installed on a car, through the setting of an adjustment mechanism and a ladder mechanism, the adjustment mechanism is used to adjust the spacing between the fences formed after folding and to complete the automatic splicing when the ladder is unfolded, and the ladder mechanism is used to drive the ladder to automatically flip and open and automatically flip and fold in the opposite direction, saving manpower and facilitating the automatic flipping, folding and opening of the ladder as needed. It saves space when folded and stored, and the folding and unfolding process is more time-saving and labor-saving. During the folding process of the ladder, the ladder can act as a grille baffle to prevent stored items from falling off the top of the car, and when the ladder is unfolded, it is used to assist personnel in climbing to the roof to pick up goods.
[0007] The technical solution adopted by the present application to solve its technical problem is: a folding ladder installed on a car, comprising a mounting base plate, an adjustment mechanism installed on the mounting base plate, a ladder mechanism installed at one end of the adjustment mechanism, the ladder mechanism comprising a first fixed plate and a second fixed plate, a plurality of first fixed pedals and a second fixed pedal are equidistantly distributed at one end between the first fixed plate and the second fixed plate, a plurality of first adjustable pedals and a second adjustable pedal are equidistantly distributed at the other end between the first fixed plate and the second fixed plate, the middle parts of one end of the first fixed plate and the second fixed plate are respectively rotatably connected to a flip gear ring, one end of the flip gear ring is meshed with a moving gear, a driving shaft passes through the middle of the moving gear, the first fixed pedal, the second fixed pedal, the first adjustable pedal and the second adjustable pedal are The middle part of one end of the pedal is respectively fixedly connected to a first hexagonal fixing rod, one end of the first hexagonal fixing rod is fixedly connected to a circular clamping plate, one end of the circular clamping plate is fixedly connected to a flip clamping block, the first fixed pedal is fixedly connected to the first fixing plate through the first hexagonal fixing rod, the circular clamping plate and the flip clamping block, the second fixed pedal is fixedly connected to the second fixing plate through the first hexagonal fixing rod, the circular clamping plate and the flip clamping block, the first adjustable pedal is rotatably connected to the first fixing plate through the first hexagonal fixing rod, the circular clamping plate and the flip clamping block, the second adjustable pedal is rotatably connected to the second fixing plate through the first hexagonal fixing rod, the circular clamping plate and the flip clamping block. The middle part of the drive shaft is fixedly connected to the first worm gear, the first worm gear is meshed with the first worm gear, and one end of the first worm gear is fixedly connected to the first motor.
[0008] Furthermore, one end of the multiple flip blocks fixedly connected to the multiple first adjustable pedals is connected with a second connecting shaft rod, and one end of the multiple flip blocks fixedly connected to the multiple second adjustable pedals is connected with the first connecting shaft rod. The multiple first adjustable pedals are fixedly connected together in series through the flip blocks and the second connecting shaft rod, and the multiple second adjustable pedals are fixedly connected together in series through the flip blocks and the first connecting shaft rod.
[0009] Furthermore, one end of the second connecting shaft and the first connecting shaft is respectively fixedly connected to a first fixed worm gear, one end of the first fixed worm gear fixed on the second connecting shaft and one end of the first fixed worm gear fixed on the first connecting shaft are both meshed and connected with a second worm gear, and a group of second worm gears are respectively provided with a first positioning shaft and a second positioning shaft, the first positioning shaft is fixedly connected to the second worm gear provided at one end of the second connecting shaft, and the second positioning shaft is fixedly connected to the second worm gear provided at one end of the first connecting shaft.
[0010] Furthermore, the adjustment mechanism includes a first movable plate, one end of the first movable plate is slidably connected to a limit plate, the bottom end of the limit plate is provided with a mounting base plate, a group of guide strips are symmetrically fixedly connected to the mounting base plate, two guide grooves are symmetrically provided at the bottom end of the limit plate, the limit plate is slidably connected to the mounting base plate through the guide grooves and the guide strips, one end of the first movable plate is provided with a fixed platform, one end of the fixed platform is provided with a second movable plate, and two hydraulic telescopic rods are symmetrically fixedly connected inside the fixed platform.
[0011] Furthermore, one end of the hydraulic telescopic rod of one of the two hydraulic telescopic rods is fixedly connected to one end of the first movable plate, and one end of the other of the two hydraulic telescopic rods is fixedly connected to one end of the second movable plate, and the second movable plate and the first movable plate can synchronously pass through the telescopic adjustment position of the hydraulic telescopic rod, and a guide slot is provided on the limit plate, and one end of the first movable plate is fixedly connected to a guide slider, and the guide slider is connected through the guide slot, and a positioning support plate is fixed at one end position of the guide slider passing through the guide slot, and a U-shaped slot is provided on the positioning support plate, and one end of the fixed platform is fixed to a protective box by a nut.
[0012] Furthermore, two first guide slide bars and two second guide slide bars are respectively connected to the fixed platform in a telescopic and sliding manner, and the two first guide slide bars and the two second guide slide bars are distributed and fixedly connected to the second movable plate and the first movable plate.
[0013] Furthermore, the driving shaft is connected through the U-shaped slot, the driving shaft is connected through the first movable plate, the first fixed plate is rotatably connected to one end of the second movable plate through the corresponding connected flip gear ring, the second fixed plate is rotatably connected to one end of the first movable plate through the corresponding connected flip gear ring, the first worm and the first motor are installed in the protective box, a protective ring is provided outside the flip gear ring, a protective ring is respectively provided outside the flip gear ring provided at one end of the first fixed plate and the flip gear ring provided at one end of the second fixed plate, there are two protective rings, and the two protective rings are respectively fixedly connected to the correspondingly connected second movable plate and one end of the first movable plate.
[0014] Furthermore, a first protective mounting plate is provided on the outside of the first positioning shaft rod, and a second protective mounting plate is provided on the outside of the second positioning shaft rod. The first protective mounting plate is fixedly connected to the first fixing plate, and the second protective mounting plate is fixedly connected to the second fixing plate. A protective tube is fixed to one end of the second protective mounting plate, and a second motor is installed in the protective tube. The output end of the second motor is fixedly connected to one end of the second positioning shaft rod, and a second docking slot is opened in the middle of one end of the first positioning shaft rod, and a second docking block matching the second docking slot is fixedly connected to the middle of one end of the second positioning shaft rod.
[0015] Furthermore, a support clamp plate is fixedly connected to the connection position between the first fixing plate and the plurality of first hexagonal fixing rods and a support clamp plate is fixedly connected to the connection position between the second fixing plate and the plurality of first hexagonal fixing rods, a U-shaped support clamp arc groove is provided at the connection position between the plurality of flip blocks and the first fixing plate, a first docking slot is provided at one end of the first adjustable pedal and the first fixed pedal, and a first docking block matching the first docking slot is fixedly connected to one end of the second fixed pedal and the second adjustable pedal.
[0016] Furthermore, two arc-shaped positioning grooves are symmetrically opened in the U-shaped support hoop arc groove, and two arc-shaped positioning blocks are symmetrically fixedly connected to each of the flip blocks, and the two arc-shaped positioning blocks are rotatably connected to the corresponding U-shaped support hoop arc grooves.
[0017] The beneficial effects of the present application are: the ladder can be automatically flipped, folded and opened as needed, it saves space when folded and stored, and the folding and unfolding process is time-saving and labor-saving. During the folding process, the ladder can act as a grille baffle to prevent stored items from falling off the top of the car, and when the ladder is unfolded, it is used to assist people in climbing to the roof to pick up goods.
[0018] The present application provides a folding ladder installed on a car. Through the provided adjustment mechanism and ladder mechanism, the adjustment mechanism is used to adjust the spacing between the fences formed after folding and to complete the automatic splicing when the ladder is unfolded. The ladder mechanism is used to drive the ladder to automatically flip and open and automatically flip and fold in the opposite direction, saving manpower and facilitating the automatic flipping, folding and opening of the ladder as needed. It saves space when folded and stored, and the folding and unfolding process is more time-saving and labor-saving. During the folding process of the ladder, the ladder can play the role of a grille baffle to prevent stored items from falling off the top of the car, and when the ladder is unfolded, it is used to assist people in climbing to the roof to pick up goods.
[0019] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings in the specification, which constitute a part of this application, are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.
[0021] In the attached figure:
[0022] Figure 1 Schematic diagram of the overall unfolded three-dimensional structure;
[0023] Figure 2 is a schematic diagram of the three-dimensional structure of the connection between the first fixing plate and the second fixing plate;
[0024] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;
[0025] Figure 4 It is a schematic diagram of the disassembled three-dimensional structure of the first adjustable pedal and the second adjustable pedal;
[0026] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of the middle part B;
[0027] Figure 6 A schematic diagram of the disassembly structure of the fixed table plate and the installation base plate;
[0028] Figure 7 It is a schematic diagram of the three-dimensional structure after the whole is folded;
[0029] Figure 8 It is a bottom view schematic diagram of the three-dimensional structure after the whole is folded.
[0030] Among them, the reference numerals in the figures are:
[0031] 1. Install the base plate; 2. Adjustment mechanism; 21. Guide strip; 22. Limit plate; 23. Guide slide; 24. First movable plate; 25. Fixed platform; 26. Second movable plate; 27. Positioning support plate; 28. U-shaped slot; 29. Hydraulic telescopic rod; 210. First guide slide; 211. Second guide slide; 212. Protective box; 3. Ladder mechanism; 31. First fixed plate; 32. Protective ring; 33. Flip gear ring; 34. Second fixed plate; 35. First fixed pedal; 36. Second fixed pedal; 37. First adjustable pedal; 38. Second adjustable pedal; 39. First hexagonal fixed rod; 310. Flip Card block; 311, first protective mounting plate; 312, second protective mounting plate; 313, protective tube; 314, driving shaft; 315, moving gear; 316, first worm gear; 317, first worm; 318, first motor; 319, circular card plate; 320, first positioning shaft; 321, second positioning shaft; 322, first fixed worm gear; 323, second worm; 324, second motor; 325, arc-shaped positioning block; 326, first connecting shaft; 327, second connecting shaft; 328, first docking slot; 329, second docking slot; 330, second docking card block; 331, support hoop card plate; 332, first docking card block. DETAILED DESCRIPTION
[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0033] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.
[0034] like Figure 1-8As shown, the present application provides a folding ladder installed on a car, including a mounting base plate 1, an adjusting mechanism 2 installed on the mounting base plate 1, a ladder mechanism 3 installed at one end of the adjusting mechanism 2, the ladder mechanism 3 including a first fixed plate 31 and a second fixed plate 34, a plurality of first fixed pedals 35 and a second fixed pedal 36 are equidistantly distributed at one end between the first fixed plate 31 and the second fixed plate 34, a plurality of first adjustable pedals 37 and a second adjustable pedal 38 are equidistantly distributed at the other end between the first fixed plate 31 and the second fixed plate 34, the middle parts of one end of the first fixed plate 31 and the second fixed plate 34 are respectively rotatably connected to a flip gear ring 33, one end of the flip gear ring 33 is meshedly connected to a moving gear 315, the middle part of the moving gear 315 passes through a driving shaft 314, the middle parts of one end of the first fixed pedal 35, the second fixed pedal 36, the first adjustable pedal 37 and the second adjustable pedal 38 are respectively fixedly connected to a first Hexagonal fixed rod 39, one end of the first hexagonal fixed rod 39 is fixedly connected to a circular card plate 319, one end of the circular card plate 319 is fixedly connected to a flip card block 310, the first fixed pedal 35 is fixedly connected to the first fixed plate 31 through the first hexagonal fixed rod 39, the circular card plate 319 and the flip card block 310, the second fixed pedal 36 is fixedly connected to the second fixed plate 34 through the first hexagonal fixed rod 39, the circular card plate 319 and the flip card block 310, the first adjustable The pedal 37 is rotatably connected to the first fixed plate 31 through the first hexagonal fixed rod 39, the circular clamping plate 319 and the flip clamping block 310. The second adjustable pedal 38 is rotatably connected to the second fixed plate 34 through the first hexagonal fixed rod 39, the circular clamping plate 319 and the flip clamping block 310. The middle part of the drive shaft 314 is fixedly connected to the first worm gear 316, and the first worm 317 is meshed with the first worm gear 316. One end of the first worm gear 317 is fixedly connected to the first motor 318.
[0035] In this embodiment, when the ladder is unfolded, the first motor 318 drives the first worm 317 to rotate, and the rotating first worm 317 drives the first worm wheel 316 meshed with it to rotate, and the rotating first worm wheel 316 rotates through the driving shaft 314 fixedly connected in the middle, and the rotating driving shaft 314 drives a group of moving gears 315 connected to the clamp thereon to rotate synchronously, and the rotating group of moving gears 315 drives a group of flip gear rings 33 meshed with the group of moving gears 315 to rotate around the corresponding The axis point at one end of the connected first movable plate 24 and the axis point at one end of the second movable plate 26 rotate synchronously toward one end, and a group of flip gear rings 33 rotating toward one end will drive the correspondingly connected first fixed plate 31 and second fixed plate 34 to rotate synchronously toward one end around the axis point at one end of the second movable plate 26 and the axis point at one end of the first movable plate 24 to a specified angle to open. When the stairs are opened, the bottom of the first fixed plate 31 and the second fixed plate 34 are in contact with the ground, or one side of the first fixed plate 31 and the second fixed plate 34 are in contact with the trunk door provided on the rear of the car.
[0036] It should be noted that four clamp grooves are equidistantly provided on the driving shaft 314 along the circumferential direction, and four clamp protrusions matching the clamp grooves are fixed equidistantly along the circumferential direction on the cavity opened in the middle part of the inner side of the moving gear 315. The moving gear 315 is slidably engaged with the driving shaft 314 through the four clamp protrusions and the four clamp grooves. The four clamp protrusions and the four clamp grooves are magnetic materials that attract each other.
[0037] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 8As shown, one end of the plurality of first adjustable pedals 37 corresponding to the plurality of flip blocks 310 fixedly connected is connected with a second connecting shaft 327, and one end of the plurality of second adjustable pedals 38 corresponding to the plurality of flip blocks 310 fixedly connected is connected with a first connecting shaft 326. The plurality of first adjustable pedals 37 are fixedly connected in series through the flip block 310 and the second connecting shaft 327. The plurality of second adjustable pedals 38 are fixedly connected in series through the flip block 310 and the first connecting shaft 326. One end of the second connecting shaft 327 and the first connecting shaft 326 is fixedly connected to a first fixed worm gear 322, and the second connecting shaft 326 is fixedly connected to a first fixed worm gear 322. One end of the first fixed worm gear 322 fixed on the shaft 327 and one end of the first fixed worm gear 322 fixed on the first connecting shaft 326 are meshed and connected with a second worm 323, and a first positioning shaft 320 and a second positioning shaft 321 are respectively provided between a group of second worm gears 323, the first positioning shaft 320 is fixedly connected to the second worm gear 323 provided at one end of the second connecting shaft 327, and the second positioning shaft 321 is fixedly connected to the second worm gear 323 provided at one end of the first connecting shaft 326, a first protective mounting plate 311 is provided on the outside of the first positioning shaft 320, a second protective mounting plate 312 is provided on the outside of the second positioning shaft 321, and the first protective mounting plate 311 is provided on the outside of the first positioning shaft 320. 1 is fixedly connected to the first fixing plate 31, the second protective mounting plate 312 is fixedly connected to the second fixing plate 34, a protective cylinder 313 is fixed to one end of the second protective mounting plate 312, a second motor 324 is installed in the protective cylinder 313, the output end of the second motor 324 is fixedly connected to one end of the second positioning shaft 321, a second docking slot 329 is opened in the middle of one end of the first positioning shaft 320, and a second docking block 330 matching the second docking slot 329 is fixedly connected to the middle of one end of the second positioning shaft 321. The connection position of the first fixing plate 31 and the plurality of first hexagonal fixing rods 39 is connected to the connection position of the second fixing plate 34 and the plurality of first hexagonal fixing rods 39. Each of the positions is fixedly connected with a support hoop card plate 331, and a U-shaped support hoop arc groove is respectively provided at the connection position of the multiple flip blocks 310 and the first fixed plate 31. One end of the first adjustable pedal 37 and the first fixed pedal 35 is provided with a first docking card slot 328, and one end of the second fixed pedal 36 and the second adjustable pedal 38 is fixedly connected with a first docking card block 332 matching the first docking card slot 328. Two arc positioning grooves are symmetrically provided in the U-shaped support hoop arc groove, and two arc positioning blocks 325 are symmetrically fixedly connected to each flip block 310, and the two arc positioning blocks 325 are respectively rotatably connected to the corresponding U-shaped support hoop arc groove.
[0038] In this embodiment, the second motor 324 drives the second positioning shaft 321 fixedly connected to the output end to rotate, and the rotating second positioning shaft 321 drives the second worm 323 fixed thereon to rotate, and the rotating second worm 323 drives the first fixed worm gear 322 meshed with it to rotate, and the rotating first fixed worm gear 322 drives the multiple flip blocks 310 connected in series on the first connecting shaft 326 to rotate toward one end around the corresponding U-shaped support hoop arc groove through the first connecting shaft 326 fixedly connected at one end, flipping When the block 310 rotates to one end, the arc-shaped positioning blocks 325 fixedly connected at both ends thereof will slide to one end along the track of the corresponding arc-shaped positioning grooves, thereby improving the stability of the flip block 310 rotating to one end. When the flip block 310 rotates to one end, the circular clamping plate 319 and the first hexagonal fixing rod 39 fixed thereon will drive the second adjustable pedal 38 fixedly connected to the first hexagonal fixing rod 39 to rotate ninety degrees to one end, so that one end of the first hexagonal fixing rod 39 is clamped to the support fixed on the second fixing plate 34. The second adjustable pedal 38 is positioned on the hoop clamp plate 331 by cooperating with the support clamp plate 331 and the U-shaped support clamp arc groove. Then, the second motor 324 fixed at one end of the first positioning shaft 320 drives the second worm 323 fixed thereon to rotate through the first positioning shaft 320. The rotating second worm 323 drives the corresponding fixed second connecting shaft 327 to rotate through the first fixed worm gear 322 meshing with it. The rotating second connecting shaft 327 drives multiple connected in series thereon to flip the clamp. The block 310 rotates toward one end around the corresponding U-shaped support hoop arc groove. When the flip block 310 rotates toward one end, the arc positioning blocks 325 fixedly connected at both ends thereof will slide toward one end along the tracks of the corresponding arc positioning grooves. When the flip block 310 rotates toward one end, the circular clamping plate 319 and the first hexagonal fixed rod 39 fixed thereon will drive the corresponding fixedly connected first adjustable pedal 37 to rotate ninety degrees, so that one end of the first hexagonal fixed rod 39 is clamped onto the support hoop clamping plate 331 fixed on the first fixed plate 31.
[0039] It should be noted that there are two forms of the first hexagonal fixing rod 39. One form is a first hexagonal fixing rod 39 with a first docking slot 328 at one end, and the other form is a first docking block 332 fixed at one end of the first hexagonal fixing rod 39. The first hexagonal fixing rod 39 with the first docking slot 328 is fixedly connected to the first adjustable pedal 37 and the first fixed pedal 35. The first hexagonal fixing rod 39 with the first docking block 332 is fixedly connected to the second adjustable pedal 38 and the second fixed pedal 35. 6 is fixedly connected. When the first fixing plate 31 and the second fixing plate 34 are flipped and clamped onto the roof of the car, the flipped and folded first adjustable step 37 and the second adjustable step 38 are perpendicular to the roof of the car. At this time, the first fixing plate 31, the second fixing plate 34, the first adjustable step 37, the second adjustable step 38, the second protective mounting plate 312 and the first protective mounting plate 311 cooperate with each other to form an enclosing fence. Goods or camping tents placed in the fence are not likely to fall off during riding.
[0040] like Figure 1 、 Figure 6 、 Figure 7 and Figure 8 As shown, the adjusting mechanism 2 includes a first movable plate 24, one end of the first movable plate 24 is slidably connected to a limit plate 22, the bottom end of the limit plate 22 is provided with a mounting base plate 1, and the mounting base plate 1 is symmetrically fixedly connected with a group of guide strips 21, and two guide grooves are symmetrically opened at the bottom end of the limit plate 22. The limit plate 22 is slidably connected to the mounting base plate 1 through the guide grooves and the guide strips 21, and one end of the first movable plate 24 is provided with a fixed platform 25, and one end of the fixed platform 25 is provided with a second movable plate 26, and two hydraulic telescopic rods 29 are symmetrically fixedly connected in the fixed platform 25, and one end of the two hydraulic telescopic rods 29 is fixedly connected to one end of the first movable plate 24, and one end of the other hydraulic telescopic rod 29 is fixedly connected to the second movable plate 1. One end of the second movable plate 26 is fixedly connected, and the second movable plate 26 and the first movable plate 24 can be synchronously adjusted to the telescopic position through the hydraulic telescopic rod 29. A guide slide 23 is provided on the limit plate 22, and one end of the first movable plate 24 is fixedly connected to a guide slider, which is connected through the guide slide 23. A positioning support plate 27 is fixed at one end of the guide slider passing through the guide slide 23, and a U-shaped slot 28 is provided on the positioning support plate 27. One end of the fixed platform 25 is fixed with a protective box 212 through a nut, and two first guide slides 210 and two second guide slides 211 are respectively connected to the fixed platform 25 for telescopic sliding. The two first guide slides 210 and the two second guide slides 211 are distributed and fixedly connected to the second movable plate 26 and the first movable plate 24.
[0041] In this embodiment, the two hydraulic telescopic rods 29 respectively push the correspondingly connected second movable plate 26 and the first movable plate 24 to slide relative to the fixed table plate 25 under the restriction of the second guide slide bar 211 and the first guide slide bar 210. At this time, the synchronously sliding second movable plate 26 and the first movable plate 24 will be fixedly connected thereon, and the guide slider and the positioning support plate 27 will drive the limit plate 22 fixed outside the guide slide groove 23 through the guide slide groove 23 to slide synchronously along a group of guide strips 21 symmetrically fixed on the installation base plate 1. The sliding second movable plate 26 and the first movable plate 24 will drive the first fixed plate 31 and the second fixed plate 34 with corresponding rotation connections at one end to move closer synchronously, thereby driving the first adjustable pedal 37 flipped open on the first fixed plate 31 and the second adjustable pedal 34 flipped open on the second fixed plate 34. When the pedals 38 move toward each other, the first fixed pedal 35 and the second fixed pedal 36 fixed on the first fixed plate 31 and the second fixed plate 34 will also move toward each other synchronously. At this time, the first fixed plate 31 and the second fixed plate 34 will drive the first positioning shaft 320 and the second positioning shaft 321 provided therein to move toward each other synchronously through the first protective mounting plate 311 and the second protective mounting plate 312 fixedly connected at one end. When the first docking slot 328 opened on the first adjustable pedal 37 and the first fixed pedal 35 and the first docking block 332 fixed on the second adjustable pedal 38 and the second fixed pedal 36 are engaged with each other, the second docking slot 329 opened on the first positioning shaft 320 will be synchronously engaged with the second docking block 330 fixed on the second positioning shaft 321, completing the ladder splicing.
[0042] It should be noted that the user can pull the assembled ladder outward to drive the second movable plate 26 and the first movable plate 24 connected to the ladder to slide toward one end a specified distance along the corresponding guide groove 23 opened on the corresponding limit plate 22 under the restriction of the corresponding connected guide slider to adjust the distance between the ladder and the car.
[0043] Working principle:
[0044] During installation, the device is installed on the roof of the car by installing the base plate 1. When the ladder is unfolded, the first motor 318 drives the first worm 317 to rotate. The rotating first worm 317 drives the first worm gear 316 meshed with it to rotate. The rotating first worm gear 316 rotates through the driving shaft 314 fixedly connected in the middle. The rotating driving shaft 314 drives a group of moving gears 315 connected to the clamp thereon to rotate synchronously. The rotating group of moving gears 315 drives a group of flip gear rings 33 meshed with the group of moving gears 315 to rotate synchronously toward one end around the axis point at one end of the first moving plate 24 and the axis point at one end of the second moving plate 26 connected thereto. The group of flip gear rings 33 rotating toward one end 3 will drive the correspondingly connected first fixed plate 31 and second fixed plate 34 to rotate synchronously to one end around the axis point at one end of the second movable plate 26 and the axis point at one end of the first movable plate 24 to a specified angle to open. When the stairs are opened, the bottoms of the first fixed plate 31 and the second fixed plate 34 are in contact with the ground, or one side of the first fixed plate 31 and the second fixed plate 34 is in contact with the trunk door provided on the rear of the car, and the second motor 324 drives the second positioning shaft 321 fixedly connected to the output end to rotate. The rotating second positioning shaft 321 drives the second worm 323 fixed thereon to rotate. The rotating second worm 323 drives the first fixed worm gear 322 meshed with it to rotate. The rotating first fixed worm gear 322 passes through one end The first connecting shaft 326 that is fixedly connected drives the multiple flip blocks 310 connected in series on the first connecting shaft 326 to rotate toward one end around the corresponding U-shaped support hoop arc groove. When the flip block 310 rotates toward one end, the arc positioning blocks 325 that are fixedly connected at both ends thereof will slide toward one end along the trajectory of the corresponding arc positioning groove, thereby improving the stability of the flip block 310 rotating toward one end. When the flip block 310 rotates toward one end, the circular clamping plate 319 and the first hexagonal fixing rod 39 that are fixedly connected thereto drive the second adjustable pedal 38 that is fixedly connected to the first hexagonal fixing rod 39 to rotate toward one end by ninety degrees, so that one end of the first hexagonal fixing rod 39 is clamped onto the support hoop clamping plate 331 fixed on the second fixing plate 34. The second adjustable pedal 38 is positioned by the cooperation of the supporting clamp plate 331 and the U-shaped supporting clamp arc groove. Then, the second motor 324 fixed at one end of the first positioning shaft 320 drives the second worm 323 fixed thereon to rotate through the first positioning shaft 320. The rotating second worm 323 drives the corresponding fixedly connected second connecting shaft 327 to rotate through the first fixed worm gear 322 meshing with it. The rotating second connecting shaft 327 drives the multiple flip block 310 connected in series thereon to rotate toward one end around the correspondingly connected U-shaped supporting clamp arc groove. When the flip block 310 rotates toward one end, the arc positioning blocks 325 fixed at both ends thereof slide toward one end along the trajectory of the corresponding arc positioning groove respectively.When the first and second movable plates 31 and 34 are symmetrically fixed on the mounting base 1, the sliding second movable plate 26 and the first movable plate 24 will slide synchronously along the guide strips 21 symmetrically fixed on the mounting base 1 through the guide slide 23, and the sliding second movable plate 26 and the first movable plate 24 will drive the first fixed plate 31 and the second fixed plate 34 connected at one end to move synchronously, thereby driving the first fixed plate 31 and the second fixed plate 34 to move synchronously. When the first adjustable step 37 that is flipped open on the fixed plate 31 and the second adjustable step 38 that is flipped open on the second fixed plate 34 move toward each other, the first fixed step 35 and the second fixed step 36 fixed on the first fixed plate 31 and the second fixed plate 34 also move toward each other synchronously. At this time, the first fixed plate 31 and the second fixed plate 34 drive the first positioning shaft 320 and the second positioning shaft 321 provided therein to move toward each other synchronously through the first protective mounting plate 311 and the second protective mounting plate 312 that are fixedly connected at one end. When the first docking slots 328 provided on the first adjustable step 37 and the first fixed step 35 engage with the first docking block 332 fixed on the second adjustable step 38 and the second fixed step 36, the second docking slots 329 provided on the first positioning shaft 320 are synchronously engaged with the second docking block 330 fixed on the second positioning shaft 321, completing the ladder assembly. The objects placed on the roof can be removed by climbing the ladder.
[0045] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.
Claims
1. A folding ladder mounted on a vehicle, comprising a mounting base plate (1), characterized in that: An adjustment mechanism (2) is installed on the mounting base plate (1), and a ladder mechanism (3) is installed at one end of the adjustment mechanism (2). The ladder mechanism (3) comprises a first fixed plate (31) and a second fixed plate (34), and a plurality of first fixed pedals (35) and a second fixed pedal (36) are equidistantly distributed at one end between the first fixed plate (31) and the second fixed plate (34), and a plurality of first adjustable pedals (37) and a second adjustable pedal (38) are equidistantly distributed at the other end between the first fixed plate (31) and the second fixed plate (34). 38), the middle of one end of the first fixed plate (31) and the second fixed plate (34) are respectively rotatably connected to a flip gear ring (33), one end of the flip gear ring (33) is meshedly connected to a moving gear (315), and the middle of the moving gear (315) is penetrated by a driving shaft (314), the middle of one end of the first fixed pedal (35), the second fixed pedal (36), the first adjustable pedal (37) and the second adjustable pedal (38) are respectively fixedly connected to a first hexagonal fixed rod (39), the first hexagonal fixed rod One end of the (39) is fixedly connected to a circular clamping plate (319), and one end of the circular clamping plate (319) is fixedly connected to a flip clamping block (310). The first fixed pedal (35) is fixedly connected to the first fixed plate (31) through the first hexagonal fixed rod (39), the circular clamping plate (319) and the flip clamping block (310). The second fixed pedal (36) is fixedly connected to the second fixed plate (34) through the first hexagonal fixed rod (39), the circular clamping plate (319) and the flip clamping block (310). The first adjustable pedal (37) is fixedly connected to the first fixed plate (31) through the first A hexagonal fixed rod (39), a circular clamping plate (319) and a flip clamping block (310) are rotatably connected to the first fixed plate (31); the second adjustable pedal (38) is rotatably connected to the second fixed plate (34) via the first hexagonal fixed rod (39), the circular clamping plate (319) and the flip clamping block (310); a first worm gear (316) is fixedly connected to the middle portion of the drive shaft (314); a first worm (317) is meshedly connected to the first worm gear (316); and one end of the first worm gear (317) is fixedly connected to a first motor (318).
2. The foldable ladder installed on a car according to claim 1, characterized in that: One end of the plurality of flip blocks (310) fixedly connected to the plurality of first adjustable pedals (37) is connected through a second connecting shaft (327), and one end of the plurality of flip blocks (310) fixedly connected to the plurality of second adjustable pedals (38) is connected through a first connecting shaft (326). The plurality of first adjustable pedals (37) are fixedly connected in series through the flip blocks (310) and the second connecting shaft (327), and the plurality of second adjustable pedals (38) are fixedly connected in series through the flip blocks (310) and the first connecting shaft (326).
3. The foldable ladder installed on a car according to claim 2, characterized in that: One end of the second connecting shaft (327) and the first connecting shaft (326) are respectively fixedly connected to a first fixed worm gear (322); one end of the first fixed worm gear (322) fixed on the second connecting shaft (327) and one end of the first fixed worm gear (322) fixed on the first connecting shaft (326) are both meshedly connected to a second worm gear (323); a group of the second worm gears (323) are respectively provided with a first positioning shaft (320) and a second positioning shaft (321); the first positioning shaft (320) is fixedly connected to the second worm gear (323) provided at one end of the second connecting shaft (327); the second positioning shaft (321) is fixedly connected to the second worm gear (323) provided at one end of the first connecting shaft (326).
4. The foldable ladder installed on a car according to claim 1, characterized in that: The adjustment mechanism (2) includes a first movable plate (24), one end of which is slidably connected to a limit plate (22), the bottom end of which is provided with a mounting base plate (1), a group of guide strips (21) being symmetrically fixedly connected to the mounting base plate (1), two guide grooves being symmetrically provided at the bottom end of the limit plate (22), the limit plate (22) being slidably connected to the mounting base plate (1) through the guide grooves and the guide strips (21), one end of the first movable plate (24) is provided with a fixed platform (25), one end of the fixed platform (25) is provided with a second movable plate (26), and two hydraulic telescopic rods (29) are symmetrically fixedly connected inside the fixed platform (25).
5. The foldable ladder installed on a car according to claim 4, characterized in that: One end of one of the two hydraulic telescopic rods (29) is fixedly connected to one end of the first movable plate (24), and one end of the other of the two hydraulic telescopic rods (29) is fixedly connected to one end of the second movable plate (26). The second movable plate (26) and the first movable plate (24) can synchronously pass through the telescopic adjustment position of the hydraulic telescopic rod (29). A guide slot (23) is provided on the limit plate (22). One end of the first movable plate (24) is fixedly connected to a guide slider, and the guide slider is connected to the guide slot (23). A positioning support plate (27) is fixed at one end of the guide slider passing through the guide slot (23). A U-shaped slot (28) is provided on the positioning support plate (27). One end of the fixed platform (25) is fixed with a protective box (212) through a nut.
6. The foldable ladder installed on a car according to claim 4, characterized in that: Two first guide slide bars (210) and two second guide slide bars (211) are respectively connected in telescopic sliding manner in the fixed platform (25), and the two first guide slide bars (210) and the two second guide slide bars (211) are distributed and fixedly connected to the second movable plate (26) and the first movable plate (24).
7. The foldable ladder installed on a car according to claim 1, characterized in that: The driving shaft (314) is connected to the U-shaped slot (28) through the driving shaft (314) and is connected to one end of the first movable plate (24). The first fixed plate (31) is rotatably connected to one end of the second movable plate (26) through the corresponding flip gear ring (33). The second fixed plate (34) is rotatably connected to one end of the first movable plate (24) through the corresponding flip gear ring (33). The first worm (317) and the first motor (318) are installed in the protective box (212). A protective ring (32) is provided outside the flip gear ring (33). A protective ring (32) is provided outside the flip gear ring (33) provided at one end of the first fixed plate (31) and the flip gear ring (33) provided at one end of the second fixed plate (34). There are two protective rings (32). The two protective rings (32) are fixedly connected to one end of the corresponding second movable plate (26) and the first movable plate (24).
8. The foldable ladder installed on a car according to claim 3, characterized in that: The first positioning shaft (320) is provided with a first protective mounting plate (311) on the outside, and the second positioning shaft (321) is provided with a second protective mounting plate (312) on the outside. The first protective mounting plate (311) is fixedly connected to the first fixing plate (31), and the second protective mounting plate (312) is fixedly connected to the second fixing plate (34). A protective tube (313) is fixed to one end of the second protective mounting plate (312), and a second motor (324) is installed in the protective tube (313). The output end of the second motor (324) is fixedly connected to one end of the second positioning shaft (321). A second docking slot (329) is provided in the middle of one end of the first positioning shaft (320), and a second docking block (330) matching the second docking slot (329) is fixedly connected to the middle of one end of the second positioning shaft (321).
9. The foldable ladder installed on a car according to claim 1, characterized in that: A support clamp plate (331) is fixedly connected to the connection position between the first fixed plate (31) and the plurality of first hexagonal fixed rods (39) and the connection position between the second fixed plate (34) and the plurality of first hexagonal fixed rods (39). A U-shaped support clamp arc groove is respectively provided at the connection position between the plurality of flip clamps (310) and the first fixed plate (31). A first docking clamp groove (328) is provided at one end of the first adjustable pedal (37) and the first fixed pedal (35). A first docking clamp block (332) matching the first docking clamp groove (328) is fixedly connected to one end of the second fixed pedal (36) and the second adjustable pedal (38).
10. The foldable ladder installed on a car according to claim 9, characterized in that: Two arc-shaped positioning grooves are symmetrically provided in the U-shaped support hoop arc groove, and two arc-shaped positioning grooves (325) are symmetrically fixedly connected to each flip block (310), and the two arc-shaped positioning grooves (325) are respectively rotatably connected to the corresponding U-shaped support hoop arc groove.