A folding automobile creeper

Abstract

The utility model provides a folding car ladder, which comprises a main ladder, an extension ladder mounted on the upper end of the main ladder, an extension rod connected to the outer sides of the main ladder and a foot rod mounted across the two extension rods, a hinge rod mounted on the upper end of the main ladder, a hinge hole formed in the extension rod, the hinge rod sleeved in the hinge hole, the extension rod extending the hinge rod to swing, the extension ladder unfolded and stored, an upper clamping groove formed in the lateral wall of the upper end of the main ladder, an unfolding rod mounted on the extension rod, the unfolding rod buckled into the upper clamping groove when the extension ladder is unfolded, a lower clamping groove formed in the lateral wall of the middle part of the main ladder, the foot rod buckled into the lower clamping groove when the extension ladder is stored. The utility model has the advantages that the extension ladder provides additional height for users, the users can firmly hold and support, and the safety during climbing the roof of the vehicle is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive auxiliary accessories technology, specifically a foldable car ladder. Background Technology

[0002] Car ladders, as an auxiliary device, are commonly used in off-road vehicles and SUVs to facilitate users accessing the roof for luggage, equipment maintenance, or other high-altitude work. Existing car ladders are typically fixed to the side or rear of the vehicle, providing a vertical or inclined foothold for users to climb. However, to comply with traffic regulations regarding vehicle height and to avoid affecting the vehicle's maneuverability through narrow spaces or low obstacles, existing car ladders are usually designed to be roughly level with or below the vehicle's roof. This design, where the ladder is level with or below the roof, means that when users need to climb from the top to the roof platform, the ladder is too short, requiring them to tiptoe or lean out to stand on the roof. During this process, the user lacks a stable point of support to maintain balance. In situations of instability, slippery conditions, or vehicle movement, the user is highly susceptible to falling, posing a serious threat to their personal safety. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a foldable car ladder with a simple structure, low manufacturing cost, foldable installation to improve ease of use, double locking to ensure stability in both unfolded and folded states, and inclined slots to optimize the operating experience and enhance user safety.

[0004] The purpose of this utility model is achieved in the following way: a folding car ladder, comprising a main ladder, an extension ladder installed at the upper end of the main ladder, the extension ladder including extension rods connected to the two outer sides of the main ladder and foot pedals installed across the two extension rods; a hinge rod is installed at the upper end of the main ladder, the extension rods have hinge holes, the hinge rods are fitted into the hinge holes, the extension rods extend the hinge rods and swing, realizing the unfolding and folding of the extension ladder; an upper slot is opened through the side wall at the upper end of the main ladder, correspondingly, an unfolding rod is installed on the extension rod, when the extension ladder is unfolded, the unfolding rod is snapped into the upper slot; a lower slot is opened through the side wall in the middle of the main ladder, when the extension ladder is folded, the foot pedals are snapped into the lower slot.

[0005] The hinge hole has an upper locking hole and a lower locking hole on its upper and lower sides, respectively. The upper end of the main ladder is also equipped with a locking screw. When the extension ladder is unfolded, the locking screw is connected to the upper locking hole; when the extension ladder is retracted, the locking screw is connected to the lower locking hole, thereby locking the unfolded and retracted states of the extension ladder, respectively.

[0006] The upper slot is configured as an inclined slot with an open top, and the opening of the upper slot faces the back of the main ladder.

[0007] The lower slot is configured as an inclined slot with an open upper end, and the opening of the lower slot faces the front of the main ladder.

[0008] The main ladder includes two support frames, and several foot pedals are installed across the middle of the two support frames; upper and lower mounting seats are respectively installed at the upper and lower ends of the support frames, and the vehicle body is connected to the upper and lower mounting seats respectively, connecting the main ladder and the vehicle into one unit.

[0009] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0010] 2. A foldable extension ladder is installed on the main ladder, which users can unfold or store according to their actual needs, significantly improving the ease of use of the car ladder.

[0011] 3. The extension ladder provides users with extra height, allowing for a stable grip and support, significantly improving safety when climbing the roof of a vehicle.

[0012] 4. The foldable installation of the extension ladder does not affect the overall height and maneuverability of the vehicle, and complies with traffic regulations.

[0013] 5. A locking screw and locking hole are provided for secondary locking, which takes into account both the convenience of use and the status locking, and ensures the stability and safety of use.

[0014] 6. The tilted design of the card slot optimizes the smoothness of the snap-in process, improving the convenience of operation and user experience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the extended ladder in its stowed state according to this utility model.

[0016] Figure 2 In this utility model Figure 1 Enlarged view of point A.

[0017] Figure 3 This is a schematic diagram of the extended ladder in its unfolded state from the front.

[0018] Figure 4This is a schematic diagram of the back of the extended ladder in this utility model when unfolded.

[0019] Figure 5 In this utility model Figure 4 Enlarged view of point B.

[0020] Figure 6 In this utility model Figure 5 Exploded view of the structure of the unfolding rod and the upper slot.

[0021] Figure 7 This is an exploded view of the structure of the extension ladder and the main ladder in this utility model. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings. A folding car ladder includes a main ladder, an extension ladder 2 installed at the upper end of the main ladder, the extension ladder 2 including extension rods 21 connected to the two outer sides of the main ladder and foot pedals 22 installed across the two extension rods 21; a hinge rod 5 is installed at the upper end of the main ladder, the extension rods 21 have hinge holes 51, the hinge rod 5 is fitted into the hinge holes 51, the extension rods 21 extend the hinge rods 5 and swing, realizing the unfolding and folding of the extension ladder 2; an upper slot 6 is opened through the side wall at the upper end of the main ladder, correspondingly, an unfolding rod 61 is installed on the extension rods 21, the unfolding rod 61 is engaged into the upper slot 6 when the extension ladder 2 is unfolded; a lower slot 7 is opened through the side wall in the middle of the main ladder, the foot pedals 22 are engaged into the lower slot 7 when the extension ladder 2 is folded.

[0023] In this car ladder structure, an extension ladder is provided on the main ladder. The extension ladder includes extension rods connected to the main ladder and foot pedals installed across the two extension rods. Hinge holes are provided on the extension rods, and hinge rods are installed on the main ladder. The extension ladder is hinged to the hinge holes using the hinge rods, allowing it to rotate and swing around the hinge rods as an axis. The hinge structure also allows the extension ladder to be folded, enabling quick and easy unfolding and storage, ensuring stability and safety during use. Furthermore: When the extension ladder needs to be deployed, the extension rod rotates upward around the hinge rod until it is fully deployed. At this time, the deployment rod installed on the extension rod moves to the upper slot on the upper side wall of the main ladder. The deployment rod engages in the upper slot to restrict the upward movement of the extension ladder, thus securing the deployed extension ladder in the deployed position and effectively preventing accidental shaking or downward retraction during use. When the extension ladder needs to be stored and not in use, the extension rod rotates downward around the hinge rod until it is fully stored. At this time, the foot pedal moves to the lower slot on the middle side wall of the main ladder. The foot pedal engages in the lower slot to restrict the downward movement of the extension ladder, thus securing the stored extension ladder in the stored position and effectively preventing accidental deployment of the extension ladder during vehicle operation.

[0024] When the extension ladder is deployed, its upward-extending structure provides users with a higher grip point or additional step when climbing to the roof, significantly enhancing user safety when transitioning from the top of the ladder to the roof and effectively avoiding the risk of falls that may occur due to the lack of handrails. When the extension ladder is stowed, its folding design allows it to fit snugly against the main ladder and be stored below the roof, thus not increasing the overall height of the vehicle, fully complying with traffic regulations regarding vehicle height, and maintaining good vehicle maneuverability.

[0025] The hinge hole 51 is provided with an upper locking hole 81 and a lower locking hole 82 on its upper and lower sides, respectively. The upper end of the main ladder is also equipped with a locking screw 8. When the extension ladder 2 is unfolded, the locking screw 8 is connected to the upper locking hole 81; when the extension ladder 2 is retracted, the locking screw 8 is connected to the lower locking hole 82, thereby locking the unfolded and retracted states of the extension ladder 2, respectively.

[0026] An upper locking hole and a lower locking hole are respectively provided on the upper and lower sides of the hinge hole. A locking screw is installed at the upper end of the main ladder, corresponding to the two locking holes. When the extension ladder is fully extended, the user can screw or fasten the locking screw into the upper locking hole to securely lock the extension ladder in its extended state. Similarly, when the extension ladder is fully retracted, the user can screw or fasten the locking screw into the lower locking hole to securely lock the extension ladder in its retracted state. Compared to a single slot locking mechanism, the dual locking mechanism of the locking screw and locking holes provides an additional mechanical lock, more effectively preventing the extension ladder from accidentally disengaging or shaking during use, especially significantly improving the overall stability and safety of the ladder while the vehicle is in motion.

[0027] The upper slot 6 is configured as an inclined slot with an open top, the opening of which faces the back of the main elevator. With the upper slot open at the top and facing the back of the main elevator, when the extension rod swings upwards and approaches the upper slot, the unfolding rod slides more easily into the inclined open end, guiding the unfolding rod to accurately engage. This makes the unfolding operation smoother, reduces the difficulty of alignment for the user, improves the convenience and smoothness of the unfolding process, and avoids possible jamming during engagement.

[0028] The lower slot 7 is configured as an inclined slot with an open top, the opening of which faces the front of the main elevator. With the lower slot open at the top and facing the front of the main elevator, when the extension rod swings downwards towards the lower slot, the foot pedal slides more easily into the inclined open end, guiding the foot pedal to accurately engage. This makes the storage operation smoother, reduces the difficulty of alignment for the user, improves the convenience and smoothness of the storage process, and avoids possible jamming during engagement.

[0029] The main ladder includes two support frames 1, and several foot pedals 22 are installed across the middle of the two support frames 1; upper mounting bases 3 and lower mounting bases 4 are respectively installed at the upper and lower ends of the support frames 1, and the vehicle body is connected to the upper mounting bases 3 and lower mounting bases 4 respectively, connecting the main ladder and the vehicle into one unit.

[0030] The main ladder consists of two support frames, with several footholds straddling the two frames for users to climb. Upper and lower mounting bases are installed at the top and bottom of each support frame, respectively. These bases are securely connected to the vehicle body, integrating the main ladder into a stable unit. This fixed connection ensures the ladder's stability and reliability, making it suitable for integrated installation on various vehicle models. It also prevents the ladder from loosening or falling off during use, providing users with a safe and stable climbing platform.

[0031] In summary: When a user needs to climb to the roof, the extension ladder flips upwards. The two extension rods of the extension ladder engage with the hinge rod at the top of the main ladder via their own hinge holes, swinging upwards around the hinge rod as an axis. When the extension ladder is fully extended, the pre-set deployment rods on the extension rods precisely engage with the upper slots on the upper side wall of the main ladder. The inclined open design of the upper slots effectively guides the deployment rods smoothly into and locks them, ensuring a smooth deployment process. To further enhance the stability of the extended state, the user can also screw the locking screw at the top of the main ladder into the upper locking hole on the extension rod, forming a double lock and completely eliminating the risk of the extension ladder retracting due to shaking or accidental impact during climbing. In the extended state, the extension ladder extends upwards, providing additional steps or handrails above the roof, offering users a stable grip and support when transitioning from the top of the ladder to the roof, significantly improving operational safety.

[0032] When the vehicle needs to be driven daily or pass through height-restricted areas, the user will fold down and store the extension ladder. The extension ladder also swings downwards around the hinge rod at the top of the main ladder. When the extension ladder is fully retracted within the height restriction of the main ladder, the foot pedal mounted across the two extension rods on the extension ladder moves to the lower locking slot in the middle side wall of the main ladder and engages. The sloping open design of the lower locking slot also serves as a guide, ensuring that the foot pedal can smoothly enter and lock. Similarly, for absolute stability during vehicle movement, the user can operate the locking screw on the main ladder to screw into the lower locking hole on the extension rod, providing a secondary mechanical lock to the retracted state and preventing the extension ladder from accidentally deploying when the vehicle is bumpy or traveling at high speed. In the retracted state, the extension ladder fits snugly against the main ladder, not exceeding the height of the vehicle roof, ensuring the vehicle fully complies with traffic regulations and maintains good maneuverability, while avoiding any additional impact on the vehicle's appearance and aerodynamics.

[0033] Furthermore, the main ladder consists of two support frames, with several footholds installed between the two frames for users to climb. The upper and lower ends of the main ladder are securely connected to the vehicle body via upper and lower mounting seats, respectively, forming a safe and stable climbing platform. This multi-point, fixed connection ensures that the entire ladder system maintains a high degree of integrity and stability with the vehicle during deployment, storage, and use, thus allowing for widespread application.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A folding car ladder, characterized in that: It includes a main ladder, and an extension ladder (2) is installed at the upper end of the main ladder. The extension ladder (2) includes extension rods (21) connected to the two outer sides of the main ladder and foot pedals (22) installed across the two extension rods (21). The upper end of the main ladder is equipped with a hinge rod (5), and the extension rod (21) is provided with a hinge hole (51). The hinge rod (5) is fitted into the hinge hole (51), and the extension rod (21) extends the hinge rod (5) to swing, so as to realize the unfolding and storage of the extension ladder (2). The upper end of the main ladder is provided with an upper slot (6) through the side wall. Correspondingly, the extension rod (21) is equipped with an unfolding rod (61). When the extension ladder (2) is unfolded, the unfolding rod (61) is snapped into the upper slot (6). The main ladder has a lower slot (7) through the side wall in the middle. When the extension ladder (2) is stored, the foot pedal (22) is snapped into the lower slot (7).

2. A folding car ladder according to claim 1, characterized in that: The hinge hole (51) is provided with an upper locking hole (81) and a lower locking hole (82) on the upper and lower sides respectively. The upper end of the main ladder is also equipped with a locking screw (8). When the extension ladder (2) is unfolded, the locking screw (8) is connected to the upper locking hole (81); when the extension ladder (2) is retracted, the locking screw (8) is connected to the lower locking hole (82), respectively locking the unfolded and retracted states of the extension ladder (2).

3. A folding car ladder according to claim 1, characterized in that: The upper slot (6) is set as an inclined slot with an open upper end, and the opening of the upper slot (6) is set towards the back of the main ladder.

4. A folding car ladder according to claim 1, characterized in that: The lower slot (7) is set as an inclined slot with an open upper end, and the opening of the lower slot (7) is set facing the front of the main ladder.

5. A folding car ladder according to claim 1, characterized in that: The main ladder includes two support frames (1), and several foot pedals (22) are installed across the middle of the two support frames (1); the upper and lower ends of the support frames (1) are respectively equipped with an upper mounting seat (3) and a lower mounting seat (4), and the vehicle body is connected to the upper mounting seat (3) and the lower mounting seat (4) respectively, connecting the main ladder and the vehicle into one unit.

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