A car roof rack ladder and its installation method

Abstract

This invention belongs to the field of automotive accessory technology, and specifically relates to a car roof rack ladder and its installation method; it includes a ladder structure, which is connected to the roof rack longitudinal bar via a latch structure; the latch structure includes a back plate, a latch plate, and a fixing groove, one end of the back plate is connected to the ladder structure, and the other end of the back plate is connected to the roof rack longitudinal bar; the roof rack longitudinal bar has a fixing groove; one end of the latch plate is a latch one, which is connected to the fixing groove; the other end of the latch plate is a latch two, which is connected to the back plate; this invention enables the ladder structure to be conveniently and quickly fixed to the roof rack longitudinal bar, and is also very easy to disassemble.

Description

Technical Field

[0001] This invention belongs to the field of automotive accessory technology, and specifically relates to a car roof rack ladder and its installation method. Background Technology

[0002] In recent years, the number of people enjoying outdoor leisure activities has been increasing. Cars, as an important means of transportation, are often used for long-distance travel. To maximize the use of interior and exterior space, some SUVs and off-road vehicles are equipped with roof racks, usually with a ladder on one side for easy access. These racks are frequently used to load various types of luggage for loading and unloading. Meanwhile, most motorhomes, such as station wagons and four-wheel drive vehicles, have a relatively high roof, often using the loading platform for placing items or washing the car. This requires the use of a ladder or side ladder for work; however, the high roofs of SUVs and off-road vehicles necessitate the use of ladders. Existing ladders are generally connected to the roof and body using welding or threaded connections, which not only affects the integrity of the vehicle but also makes loading and unloading cumbersome.

[0003] Currently, there are many types of ladders developed for matching longitudinal roof racks in the automotive market. Most of them use suction cups to directly attach the lower end to the car body and lock the top to the roof rack. However, the locking and installation of the top to the roof rack is relatively complicated and difficult to operate, and disassembly is also inconvenient.

[0004] There are many types of external side ladders for automobiles, but their installation and disassembly structures are generally quite complex. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes a car roof rack ladder, comprising a ladder structure connected to the roof rack longitudinal bar via a latching structure. The latching structure includes a back plate, a latch plate, and a fixing groove. One end of the back plate is connected to the ladder structure, and the other end is connected to the roof rack longitudinal bar. The roof rack longitudinal bar has a fixing groove. One end of the latch plate is a latch one, which is connected to the fixing groove. The other end of the latch plate is a latch two, which is connected to the back plate.

[0006] Furthermore, an inverted wedge plate is provided at the position where the back plate connects to the ladder structure, and a locking hole is provided on the inverted wedge plate, which engages with the locking tongue.

[0007] Furthermore, the number of the latch plates is ≥2, and the number of the inverted wedge plates is the same as the number of the latch plates.

[0008] Furthermore, the number of the second type of latch is ≥2.

[0009] Furthermore, a fixing hole one is provided on the tongue plate, and a fixing hole two is provided on the inverted wedge plate; the fixing hole one and the fixing hole two are concentrically arranged.

[0010] Furthermore, the ladder structure includes a plastic body and a layer of steps; the plastic body is connected to the luggage rack longitudinal bar via a back plate and a latch plate; the layer of steps includes a first step main board and a first side body, and multiple first step main boards are laterally connected to two first side bodies; the back of each of the two first side bodies is hinged to a first support column, and the other end of the first support column is hinged to the plastic body.

[0011] Furthermore, the ladder structure also includes a two-tiered ladder, which includes a second-tier main board and a second-tier side body; one end of the second-tier side body is hinged to the lower end of the first-tier side body, and the other end of the second-tier side body is inclined; multiple second-tier main boards are laterally connected to the two second-tier side bodies.

[0012] Furthermore, multiple fixing slots are provided on the longitudinal bars of the luggage rack on both sides.

[0013] Furthermore, a locking structure is provided between the plastic body and the ladder structure, the locking structure being used to unlock and lock the ladder structure.

[0014] Furthermore, a protective cover is provided between the upper end of the plastic body and the back plate, and the protective cover engages with the upper end of the plastic body and the upper surface of the back plate.

[0015] Furthermore, a magnet is provided on the back of the plastic body, and the magnet is wrapped with rubber.

[0016] This invention proposes a method for installing a car roof rack ladder, applicable to any of the car roof rack ladders described above, and the method includes the following steps:

[0017] Hook the end of the back panel away from the ladder structure onto the inside of the luggage rack's longitudinal bar, and fix one end of the back panel to the luggage rack's longitudinal bar;

[0018] Next, hook the first latch at one end of the latch plate into the fixing groove, and insert the second latch at the other end of the latch plate into the latch hole; then fix it by connecting the first fixing hole and the second fixing hole.

[0019] Then attach the protective cover to the top of the plastic body and the back panel.

[0020] This disclosure achieves convenient and quick fixation of the ladder structure to the luggage rack longitudinal bar by setting a back plate and a latch plate, setting an inverted wedge plate on the back plate, and using latch one and latch two on the latch plate in conjunction with the inverted wedge plate and the back plate, and also makes disassembly very convenient.

[0021] This invention uses a combination of a first-level and a second-level ladder with a plastic body and a two-section folding design to reduce the height of the lowest point of the ladder, making it more convenient for people of different heights to use. At the same time, it takes up less space when stored.

[0022] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the retracted ladder structure in an embodiment of this disclosure is shown.

[0025] Figure 2 A schematic diagram of the ladder structure unfolding in an embodiment of this disclosure is shown.

[0026] Figure 3 A schematic diagram of the rear structure of the ladder structure in an embodiment of the present invention is shown.

[0027] Figure 4 A schematic diagram of the inverted wedge plate in an embodiment of the present invention is shown.

[0028] Figure 5 A schematic diagram of the backplate structure in an embodiment of the present invention is shown.

[0029] Figure 6 A schematic diagram of the latch structure in an embodiment of the present invention is shown.

[0030] Figure 7 A schematic diagram of the tongue plate in an embodiment of the present invention is shown.

[0031] In the diagram, 10 is the ladder structure; 20 is the latch structure; 40 is the luggage rack longitudinal bar; 201 is the back panel; 202 is the latch plate; 203 is the fixing groove; 2021 is the latch one; 2022 is the latch two; 2011 is the inverted wedge plate; 2012 is the locking hole; 2023 is the fixing hole one; 2013 is the fixing hole two; 101 is the plastic main body; 102 is the first step; 1021 is the main board of the first step; 1022 is the main body of the first side; 1023 is the first support column; 103 is the second step; 1031 is the main board of the second step; 1032 is the main body of the second side; 50 is the locking structure; 60 is the protective cover; and 70 is the magnet. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This application provides a car roof rack ladder, including a ladder structure 10, which is connected to the roof rack longitudinal bar 40 via a latch structure 20. The latch structure 20 includes a back plate 201, a latch plate 202, and a fixing groove 203. One end of the back plate 201 is connected to the ladder structure 10, and the other end of the back plate 201 is connected to the roof rack longitudinal bar 40. The roof rack longitudinal bar 40 has a fixing groove 203. One end of the latch plate 202 is a latch one 2021, which is connected to the fixing groove 203. The other end of the latch plate 202 is a latch two 2022, which is connected to the back plate 201.

[0034] An inverted wedge plate 2011 is provided at the position where the back plate 201 connects to the ladder structure 10. The inverted wedge plate 2011 has a locking hole 2012, which engages with the locking tongue 2022.

[0035] The number of the aforementioned latch plates 202 is ≥2, and the number of the aforementioned inverted wedge plates 2011 is the same as the number of the aforementioned latch plates 202.

[0036] The quantity of the above-mentioned 2022 clappers is ≥2.

[0037] The aforementioned latch plate 202 has a first fixing hole 2023, and the aforementioned inverted wedge plate 2011 has a second fixing hole 2013; the aforementioned first fixing hole 2023 and the aforementioned second fixing hole 2013 are concentrically arranged.

[0038] Multiple fixing slots 203 are provided on the longitudinal bars 40 of the luggage racks on both sides.

[0039] A protective cover plate 60 is provided between the upper end of the plastic body 101 and the back plate 201, and the protective cover plate 60 is engaged with the upper end of the plastic body 101 and the upper surface of the back plate 201.

[0040] refer to Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , Figure 1 A schematic diagram of the structure in an embodiment of the present disclosure is shown, wherein the upper end of the plastic body 101 is connected by a luggage rack longitudinal bar 40, and a plurality of fixing slots 203 are provided on the luggage rack longitudinal bar 40, and the first-level step 102 and the second-level step 103 are folded inside the plastic body 101; Figure 4 A schematic diagram of the structure of the inverted wedge plate 2011 in an embodiment of the present invention is shown. The inverted wedge plate 2011 is divided into two parts, which form a certain angle between them. One part is provided with a card hole 2012, and the other part is provided with a fixing hole 2013. Figure 5 A schematic diagram of the structure of the back panel 201 in an embodiment of the present invention is shown. The back panel 201 is hook-shaped. The front end of the back panel 201 hooks the luggage rack vertical bar 40. The rear end of the back panel 201 is connected to the plastic body 101. A protective cover plate 60 is attached to the upper end of the back panel 201. Figure 6 The diagram shows a schematic of the latch structure 20 in an embodiment of the present invention, wherein the back plate 201 hooks the luggage rack vertical bar 40, the latch one 2021 on the latch plate 202 hooks the fixing groove 203 on the luggage rack vertical bar 40, and the latch two 2022 on the latch plate 202 is inserted into the back plate 201 for fixation. Figure 7 A schematic diagram of the structure of the latch plate 202 in an embodiment of the present invention is shown. The latch plate 202 has a hook-shaped end, an inclined upward end, a horizontal middle part, and a fixing hole 2023 in the middle part.

[0041] During implementation, multiple fixing slots 203 are set on the longitudinal bars 40 of the luggage racks on both sides, and the fixing slots 203 are distributed in different positions; the position of the ladder is set as needed, and the fixing slot 203 at which position the ladder structure 10 is fixed is selected.

[0042] Then, hook the front end of the back panel 201 onto the inside of the luggage rack longitudinal bar 40. The back panel 201 covers the upper surface of the luggage rack longitudinal bar 40. Then, fix the front end of the back panel 201 to the inside of the luggage rack longitudinal bar 40 with bolts. Next, take out the latch plate 202. The latch one 2021 is hook-shaped. Hook the latch one 2021 at the front end of the latch plate 202 onto the fixing groove 203 of the luggage rack longitudinal bar 40. Then, insert the latch two 2022 into the locking hole 2012 of the inverted wedge plate 2011 to further fix the ladder structure 10 to the fixing groove 203 of the luggage rack longitudinal bar 40. The latch plate 202, latch one 2021, and latch two 2022 are integrally formed. Then, tighten the bolts by passing them through the fixing hole one 2023 on the latch plate 202 and the fixing hole two 2013 on the inverted wedge plate 2011. The nut that mates with the bolt can be a square nut to improve... The stability between the latch plate 202 and the back plate 201 further ensures the stability of the ladder structure 10 during use. The attached diagram shows an example with two latch plates 202. The back plate 201 has two inverted wedge-shaped plates 2011 at corresponding positions. The second latches 2022 on the two latch plates 202 are inserted into the locking holes 2012 on the two inverted wedge-shaped plates 2011, further improving the stability of the back plate 201. The two second latches 2022 on one latch plate 202 can be inserted into the same locking hole 2012, or a corresponding number of holes can be set on one inverted wedge-shaped plate 2011, allowing the two second latches 2022 to be inserted into two adjacent locking holes 2012. After the back plate 201 is fixed, the protective cover plate 60 is then clipped onto the upper surface of the back plate 201 and the plastic body 101 to protect the internal structure and enhance its aesthetics.

[0043] Meanwhile, when it is necessary to disassemble the ladder structure 10, first remove the protective cover plate 60, then remove the bolts between the latch plate 202 and the inverted wedge plate 2011, then pull the second latch 2022 out of the latch hole 2012, then pull the first latch 2021 out of the fixing groove 203, and remove the latch plate 202; then remove the bolts between the front end of the back plate 201 and the inner side of the luggage rack longitudinal bar 40, so as to separate the back plate 201 from the luggage rack longitudinal bar 40.

[0044] This disclosure achieves convenient and quick fixation of the ladder structure 10 to the luggage rack longitudinal bar 40 by setting a back plate 201 and a latch plate 202, and by setting an inverted wedge plate 2011 on the back plate 201, and by using latch one 2021 and latch two 2022 on the latch plate 202 to cooperate with the inverted wedge plate 2011 and the back plate 201, and it is also very convenient to disassemble.

[0045] In one embodiment of this disclosure, the ladder structure 10 includes a plastic body 101 and a first-level step 102; the plastic body 101 is connected to the luggage rack longitudinal bar 40 through a back plate 201 and a latch plate 202; the first-level step 102 includes a first step main plate 1021 and a first side body 1022, and multiple first step main plates 1021 are laterally connected to two first side bodies 1022; the back sides of the two first side bodies 1022 are respectively hinged to a first support column 1023, and the other end of the first support column 1023 is hinged to the plastic body 101.

[0046] The aforementioned ladder structure 10 also includes a second-level ladder 103, which includes a second-level ladder main board 1031 and a second-level side body 1032. One end of the second-level side body 1032 is hinged to the lower end of the first-level side body 1022, and the other end of the second-level side body 1032 is inclined. Multiple second-level ladder main boards 1031 are laterally connected to two second-level side bodies 1032.

[0047] A locking structure 50 is provided between the aforementioned plastic body 101 and the aforementioned ladder structure 10. The locking structure 50 is used to unlock and lock the ladder structure 10.

[0048] A magnet 70 is provided on the back of the aforementioned plastic body 101, and the magnet 70 is covered with rubber.

[0049] refer to Figure 1 , Figure 2 and Figure 3 ; Figure 1 A schematic diagram of the retracted ladder structure 10 in an embodiment of this disclosure is shown, wherein the upper end of the plastic body 101 is connected by a luggage rack longitudinal bar 40, and the luggage rack longitudinal bar 40 is provided with a plurality of fixing slots 203, and the first-level ladder 102 and the second-level ladder 103 are folded inside the plastic body 101. Figure 2 The diagram shows a schematic of the unfolded ladder structure 10 in an embodiment of the present disclosure, wherein the first step 102 is hinged to the plastic body 101, the first support column 1023 forms a certain angle with the plastic body 101, the second step is on the same plane as the first step, and the lower end of the second step is connected to the upper end of the first step. Figure 3 A schematic diagram of the back structure of the ladder structure 10 in an embodiment of the present invention is shown, wherein a magnet 70 is bolted to the lower end of the plastic body 101;

[0050] During implementation, after the upper end of the ladder structure 10 is fixed to the roof rack longitudinal bar 40, the magnet 70 at the rear end of the plastic body 101 is attracted to the vehicle body, ensuring the stability of the ladder structure 10 during use. The magnet 70 is covered with a layer of rubber material, about 1mm thick, to prevent the ladder structure 10 from rubbing against the vehicle body during use. The magnet 70 can be made of high-temperature resistant neodymium iron boron material to improve its service life, while the rubber material also ensures the magnetic effect. The magnet 70 is fixed to the back of the plastic body 101 with bolts, which can be M4 bolts. To unfold the ladder structure 10 for use, the locking structure 50 must first be unlocked with a key. The internal pull rope is linked to achieve initial unlocking of the climbing structure 10; after unlocking, simultaneously grasp the first step main board 1021 and the second step main board 1031 located between the first step 102 and the second step 103, and simultaneously pull the release handle of the locking structure 50 to completely unlock the climbing structure 10. Then, grasp the first step main board 1021 and the second step main board 1031 and pull them downward and outward at the same time, which will drive the first side body 1022 and the second side body 1032 to pull downward and outward at the same time. The first side body 1022 will drive the first support column 1023 to rotate downward and outward until the first support column 1023 rotates to the designated position, the first step 102 is locked and the first step 102 no longer moves;

[0051] Then grasp the second step main board 1031 located at the top of the second step 103, and drive the second step main board 1031 and the second side body 1032 to rotate downward and outward until the second side body 1032 and the first side body 1022 are on the same plane, and the second step main board 1031 at the top rotates to the bottom position.

[0052] When the ladder structure 10 is to be folded up, first rotate the second-level step 103 upwards and inwards so that the second-level step 103 is folded parallel to the first-level step 102; then simultaneously rotate the first-level step 102 and the second-level step 103 upwards and inwards until the first support column 1023 is parallel to the plastic body 101, and the first-level step 102 and the second-level step 103 enter the plastic body 101; then detach the upper end of the plastic body 101 from the luggage rack longitudinal bar 40 to realize the storage and disassembly of the entire ladder structure 10.

[0053] This invention uses a two-tiered folding design with a first-tier step 102 and a second-tier step 103 to work in conjunction with the plastic body 101. This design reduces the height of the lowest point of the ladder, making it more convenient for people of different heights to use. At the same time, it takes up less space when stored.

[0054] This application provides a method for installing a car roof rack ladder, applicable to any of the aforementioned car roof rack ladders, and the method includes the following steps:

[0055] Hook the end of the back panel 201 away from the ladder structure onto the inside of the luggage rack vertical bar 40, and fix one end of the back panel 201 to the luggage rack vertical bar 40.

[0056] Next, hook the first latch 2021 at one end of the latch plate 202 into the fixing groove 203, and insert the second latch 2022 at the other end of the latch plate 202 into the latch hole 2012 on the inverted wedge plate 2011; then fix it by connecting the first fixing hole 2023 and the second fixing hole 2013.

[0057] Then, attach the protective cover 60 to the upper part of the plastic body 101 and the back plate 201.

[0058] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A car roof rack ladder, characterized in that, Includes a ladder structure (10), which is connected to the luggage rack longitudinal bar (40) via a latch structure (20); the latch structure (20) includes a back plate (201), a latch plate (202), and a fixing The groove (203), one end of the back panel (201) is connected to the ladder structure (10), and the other end of the back panel (201) is connected to the luggage. The luggage rack is connected by a longitudinal bar (40); a fixing groove (203) is provided on the longitudinal bar (40); one end of the latch plate (202) is a latch one (2021), which is connected to the fixing groove (203); the other end of the latch plate (202) is a latch two (2022), which is connected to the back plate (201); An inverted wedge plate (2011) is provided at the position where the back plate (201) connects to the ladder structure (10). A locking hole (2012) is provided on the inverted wedge plate (2011), and the locking hole (2012) engages with the locking tongue (2022). The number of the latch plates (202) is ≥2, and the number of the inverted wedge plates (2011) is the same as the number of the latch plates (202); The number of the second type of clapper (2022) is ≥2; The latch plate (202) has a fixing hole 1 (2023), and the inverted wedge plate (2011) has a fixing hole 2 (2013); the fixing hole 1 (2023) and the fixing hole 2 (2013) are concentrically arranged; Multiple fixing slots (203) are provided on the longitudinal bars (40) of the luggage rack on both sides.

2. The car roof rack ladder according to claim 1, characterized in that, The ladder structure (10) includes a plastic body (101) and a first step (102); the plastic body (101) is connected to the luggage rack longitudinal bar (40) through a back plate (201) and a latch plate (202); the first step (102) includes a first step main board (1021) and a first side body (1022), and multiple first step main boards (1021) are laterally connected to two first side bodies (1022); the back of the two first side bodies (1022) are respectively hinged to a first support column (1023), and the other end of the first support column (1023) is hinged to the plastic body (101).

3. A car roof rack ladder according to claim 2, characterized in that, The ladder structure (10) further includes a two-tiered ladder (103), which includes a second-tier main board (1031) and a second-tier side body (1032). One end of the second-tier side body (1032) is hinged to the lower end of the first-tier side body (1022), and the other end of the second-tier side body (1032) is inclined. Multiple second-tier main boards (1031) are laterally connected to two second-tier side bodies (1032).

4. A car roof rack ladder according to claim 3, characterized in that, A locking structure (50) is provided between the plastic body (101) and the ladder structure (10), and the locking structure (50) is used to unlock and lock the ladder structure (10).

5. A car roof rack ladder according to claim 4, characterized in that, A protective cover plate (60) is provided between the upper end of the plastic body (101) and the back plate (201), and the protective cover plate (60) is engaged with the upper end of the plastic body (101) and the upper surface of the back plate (201).

6. A car roof rack ladder according to claim 5, characterized in that, A magnet (70) is provided on the back of the plastic body (101), and the magnet (70) is wrapped with rubber.

7. A method for installing a car roof rack ladder, characterized in that: This method is applicable to a car roof rack ladder as described in any one of claims 1-6, and the method includes the following steps: Hook the end of the back panel (201) away from the ladder structure (10) onto the inside of the luggage rack vertical bar (40) to fix one end of the back panel (201) to the luggage rack vertical bar (40); Next, hook the first latch (2021) at one end of the latch plate (202) into the fixing groove (203), and insert the second latch (2022) at the other end of the latch plate (202) into the latch hole (2012); then fix it by connecting the first fixing hole (2023) and the second fixing hole (2013); Then attach the protective cover (60) to the upper part of the plastic body (101) and the back plate (201).

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