Sliding door with folding ladder

By designing a folding ladder and limiting components on the RV's sliding door, the problems of unsafe climbing ladders and inconvenient storage in RVs are solved, achieving safe and stable use and space saving.

CN223850512UActive Publication Date: 2026-01-30ZHEJIANG MAIDOUJIN AUTOMOBILE TRADING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520667196.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-01-30
Estimated Expiration
2035-04-10

AI Technical Summary

Technical Problem

The existing RV ladder design is unsafe and inconvenient to store, affecting personal safety and taking up space.

Method used

Design a sliding door with a folding ladder. By setting folding ladders on both sides of the door, and using the cooperation of limiting components and supporting components, the folding ladders can be stably unfolded and stored.

Benefits of technology

It improves safety and ease of storage, ensuring stable support during use to prevent falls, and saving space when not in use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223850512U_ABST
    Figure CN223850512U_ABST
Patent Text Reader

Abstract

The utility model discloses a sliding door with a folding ladder, which relates to the technical field of sliding doors of motor homes and comprises a door body, extending pieces extending along the thickness direction of the door body are arranged on two sides of the sliding direction of the door body, a containing groove is formed between the two extending pieces and the door body, the folding ladder is arranged in the containing groove, and the folding ladder is arranged in the containing groove. The folding ladder comprises fixing parts which are symmetrically arranged and a folding pedal set arranged between the fixing parts, and limiting assemblies used for limiting the folding pedal set to be away from the fixing parts are arranged on the fixing parts. The folding ladder is arranged, the folding ladder is fixed to one side of the door body, the supporting effect of the first supporting piece and the supporting effect of the second supporting piece are matched, so that the folding ladder is more stable in use, the situation that a human body steps on the pedal to be damaged and fall off can be prevented, and personal safety is guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to a sliding door, more specifically, it relates to a sliding door with a folding ladder. BACKGROUND

[0002] The house car, also called "house on wheels", has the functions of both "house" and "car", but its attribute is still a car, which is a kind of movable car with basic facilities for home;

[0003] The existing house car has the head bed layout above the driver's cabin, and the head bed is high from the ground in the car, so that a climbing ladder is needed to get on and off the head bed, and the existing climbing ladder is mostly separated and hung on the bed edge or the partition door of the driver's cabin, which is very unsafe during use, easy to fall, affects personal safety, and the storage of the separated climbing ladder is also very inconvenient.

[0004] Therefore, a new scheme needs to be proposed to solve this problem. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a sliding door with a folding ladder, which is convenient to store and ensures safety in use by setting the folding ladder.

[0006] The technical scheme of the utility model is:

[0007] A sliding door with a folding ladder, comprising a door body, both sides of the door body in the sliding direction are provided with extension pieces extending along the thickness direction of the door body, a containing groove is formed between the two extension pieces and the door body, a folding ladder is arranged in the containing groove, the folding ladder comprises fixed parts arranged symmetrically to each other and folding steps arranged between the fixed parts, and the fixed parts are provided with limiting assemblies for limiting the folding steps from the fixed parts.

[0008] The utility model is further provided as follows: the folding step group comprises a plurality of steps arranged in a stepped manner from bottom to top, there is a spacing between adjacent two steps, and both sides of each step are provided with movable parts extending towards the fixed parts and hinged to the corresponding fixed parts.

[0009] The utility model is further provided as follows: the number of steps is three, and the steps are a first step, a second step and a third step arranged from bottom to top, first supporting pieces are rotatably connected to the movable parts on both sides of the third step, second supporting pieces are rotatably connected to the movable parts on both sides of the second step, and the first supporting pieces and the second supporting pieces extend towards both sides of the first step along the length direction thereof, and in use, the second supporting pieces extend beyond the first step and contact the ground.

[0010] The utility model further sets up, first support piece still with two stage pedal and the movable part rotation connection of first stage pedal, second support piece still with the movable part rotation connection of first stage pedal.

[0011] The utility model further sets up, the limiting component includes the bolt that is movably connected on the fixed part, one of the movable part is equipped with the limiting piece that cooperates with the bolt, the limiting piece is equipped with the limiting hole that the bolt inserts on.

[0012] The utility model further sets up, the limiting component still includes the sliding sleeve that sets up on the fixed part outer lateral wall and the elastic piece that sets up in the sliding sleeve, the bolt passes through the sliding sleeve, the elastic piece has the elastic deformation potential energy of driving the bolt and inserts into the limiting hole through the fixed part.

[0013] The utility model further sets up, the movable sleeve is equipped with the accommodating groove that is used to accommodate the elastic piece, the outer peripheral wall of the bolt is equipped with the sliding part that cooperates with the inner peripheral wall of accommodating groove sliding, the elastic piece is set up on the outer peripheral wall of the bolt, one end of the elastic piece is in contact on the inner bottom wall of accommodating groove, the other end of the elastic piece is in contact on the sliding part.

[0014] The utility model has the beneficial technical effects:

[0015] By setting up the folding ladder, and folding ladder is fixed at the one side of door body, and cooperate the support effect of first support piece and second support piece, make folding ladder more stable when using, and also can prevent the human body from being stepped on the pedal and causing damage, thereby falling, guarantee the personal safety.

[0016] By setting up the limiting component, can limit the unfolding after folding up folding ladder, make the storage more stable, more convenient. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the storage state of the utility model embodiment one;

[0018] Figure 2 It is the structural schematic diagram of the use state of the utility model embodiment one;

[0019] Figure 3 It is the structural schematic diagram of another view of the use state of the utility model embodiment one;

[0020] Figure 4 It is Figure 3 The enlarged view of A in the figure;

[0021] Figure 5 It is the structural schematic diagram of the use state of the utility model embodiment two;

[0022] Figure 6It is the structure schematic view of the limiting assembly of the utility model.

[0023] Figure 7 It is the explosion view of the limiting assembly of the utility model.

[0024] In the figure, 1, door body;11, extension piece;2, fixed part;3, movable part;31, limiting piece;311, limiting hole;32, first support piece;33, second support piece;4, step;5, sliding sleeve;51, bolt;511, sliding part;512, holding part;52, accommodating groove;521, elastic piece;53, protruding part. Specific implementation

[0025] In order to be more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following combining with the drawings and examples, the specific embodiment of the utility model is further detailed, the following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0026] Example one, a sliding door with folding ladder, as shown in Figures 1-4 The door lock is arranged on the extension piece 11, the two extension pieces 11 and the door body 1 form the accommodating groove 52, the folding ladder is arranged in the accommodating groove 52, when the door body 1 is closed, the folding ladder can be stored, saves space, and the folding ladder is more convenient to store, the folding ladder includes the fixed part 2 and the folding step 4 group arranged between the fixed part 2, the fixed part 2 is provided with the limiting assembly for limiting the folding step 4 group away from the fixed part 2, the folding ladder can be prevented from unfolding by the limiting assembly, and the stability of storage is guaranteed.

[0027] The folding step 4 group comprises several steps 4 arranged in a stepped manner from bottom to top, and there is a gap between adjacent two steps 4. The two sides of the step 4 are provided with movable parts 3 extending towards the fixed part 2 and are hinged on the corresponding fixed part 2. The number of steps 4 is three, and from bottom to top, they are respectively a first step, a second step and a third step. The movable parts 3 on the two sides of the third step are rotatably connected with first supporting members 32. The movable parts 3 on the two sides of the second step are rotatably connected with second supporting members 33. The first supporting members 32 and the second supporting members 33 extend in the vertical direction to contact the ground. The first supporting members 32 and the second supporting members 33 are used to support the ground, which ensures the supporting effect of the overall structure, prevents damage when the human body steps on the step 4, thereby ensuring the service life of the overall structure and protecting personal safety. The first supporting members 32 are also rotatably connected with the movable parts 3 of the second step and the first step. The second supporting members 33 are also rotatably connected with the movable parts 3 of the first step. The first step, the second step and the third step are connected with each other. When one of the steps 4 is unfolded, the other steps 4 are also unfolded at the same time, which ensures the convenience of use.

[0028] As Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, the limiting assembly includes a latch 51 movably connected to the fixed part 2, a sliding sleeve 5 provided on the outer wall of the fixed part 2, and an elastic member 521 provided in the sliding sleeve 5, one of the movable parts 3 is provided with a limiting member 31 matched with the latch 51, the limiting member 31 is provided with a limiting hole 311 for inserting the latch 51, the latch 51 passes through the sliding sleeve 5, the elastic member 521 has an elastic deformation potential for driving the latch 51 to pass through the fixed part 2 and insert into the limiting hole 311, the sliding sleeve is provided with an accommodating groove 52 for accommodating the elastic member 521, the outer peripheral wall of the latch 51 is provided with a sliding part 511 matched with the inner peripheral wall of the accommodating groove 52, the sliding part 511 and the sliding sleeve 5 limit the movement track of the latch 51, so that the movement of the latch 51 is more stable, the elastic member 521 is sleeved on the outer peripheral wall of the latch 51, the latch 51 can support the elastic member 521 to some extent, so that the deformation of the elastic member 521 is more stable, one end of the elastic member 521 abuts against the inner bottom wall of the accommodating groove 52, the other end of the elastic member 521 abuts against the sliding part 511; by the elasticity of the spring, the end of the latch 51 passes through the sliding sleeve 5 and thus passes through the fixed part 2, when the folding ladder is folded, the latch 51 is inserted into the limiting hole 311 on the limiting member 31, the limiting member 31, i.e. the movable part 3, is limited to move away from the fixed part 2, so as to limit the unfolding of the folding ladder; the end of the latch 51 away from the fixed part 2 also passes through the sliding sleeve 5 and integrally formed with a holding part 512, so that the pulling of the latch 51 is more convenient, the end of the sliding sleeve 5 away from the holding part 512 is provided with a protruding part 53, the outer peripheral wall of the protruding part 53 is provided with an external thread, the fixed part 2 is provided with a threaded hole matched with the protruding part 53, and the detachable connection of the overall limiting assembly and the fixed part 2 is completed by the threaded cooperation of the protruding part 53 and the threaded hole.

[0029] Working principle: when the forehead bed is needed, the sliding door body 1 separates the living area and the cockpit, the folding ladder is unfolded, the latch 51 is pulled out of the limiting hole 311, at this time, one of the footboards 4 is pulled to unfold all the footboards 4, so as to unfold the entire folding ladder, which is convenient for personnel to use, and because the fixed part 2 is fixed on one side of the door body 1 and cooperates with the supporting effect of the first supporting member 32 and the second supporting member 33, damage to the human body caused by stepping on the footboard 4 is prevented, so as to fall and ensure personal safety.

[0030] When not in use, fold all the pedals 4 and bring the limiting member 31 close to the pin 51. Pull the grip 512 so that the pin 51 extends into the sliding sleeve 5. At this time, the elastic member 521 is deformed by external force. When the limiting hole 311 of the limiting member 31 corresponds to the pin 51, release the grip 512. The elastic member 521 returns to its original state through its own elasticity, pushing the sliding part 511 to move so that the pin 51 extends out of the sliding sleeve 5 until it extends into the limiting hole 311. This completes the restriction of the limiting member 31, i.e. the movable part 3, restricting the unfolding of the entire folding ladder, so that the folding ladder is stored in the receiving slot 52. At this time, close the door 1 and hide the folding ladder in the receiving slot 52, saving space and making storage more convenient. The overall structure is simple and the operation is convenient and quick.

[0031] Example 2, as Figure 5 As shown, the difference from Embodiment 1 is that, in the use state, the first support member 32 can extend to both sides of the first step without contacting the ground inside the vehicle to form a gap, thereby ensuring that the entire folding ladder can be adapted to different vehicle models.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sliding door with a folding ladder, comprising a door body (1), characterized in that: The both sides of the sliding direction of the door body (1) are provided with extension pieces (11) extending along the thickness direction of the door body (1), and the extension pieces (11) and the door body (1) form containing grooves (52), the containing grooves (52) are provided with folding ladders, the folding ladders comprise fixed parts (2) arranged symmetrically to each other and folding pedal (4) groups arranged between the fixed parts (2), and the fixed parts (2) are provided with limiting assemblies for limiting the folding pedal (4) groups from the fixed parts (2).

2. A sliding door with a folding ladder according to claim 1, characterized in that: The folding pedal (4) group comprises a plurality of pedals (4) arranged in a ladder from bottom to top, and there is a spacing between the adjacent two pedals (4), and the both sides of the pedal (4) are provided with movable parts (3) extending towards the fixed part (2) and are hinged on the corresponding fixed part (2).

3. A sliding door with a folding ladder according to claim 2, characterized in that: The number of the pedal (4) is three, and from bottom to top, they are a first pedal, a second pedal and a third pedal, the movable parts (3) on the both sides of the third pedal are rotatably connected with first supporting pieces (32), the movable parts (3) on the both sides of the second pedal are rotatably connected with second supporting pieces (33), and the first supporting pieces (32) and the second supporting pieces (33) extend along the length direction thereof towards the both sides of the first pedal, and in use, the second supporting pieces (33) extend and contact the ground beyond the first pedal.

4. A sliding door with a folding ladder according to claim 3, characterized in that: The first supporting pieces (32) are also rotatably connected with the movable parts (3) of the second pedal and the first pedal, and the second supporting pieces (33) are also rotatably connected with the movable parts of the first pedal.

5. A sliding door with a folding ladder according to claim 4, characterized in that: The limiting assembly comprises a bolt (51) movably connected to the fixed part (2), one of the movable parts (3) is provided with a limiting piece (31) matched with the bolt (51), and the limiting piece (31) is provided with a limiting hole (311) for inserting the bolt (51).

6. A sliding door with a folding ladder according to claim 5, characterized in that: The limiting assembly further comprises a sliding sleeve (5) arranged on the outer wall of the fixed part (2) and an elastic piece (521) arranged in the sliding sleeve (5), the bolt (51) passes through the sliding sleeve (5), and the elastic piece (521) has an elastic deformation potential energy for driving the bolt (51) to pass through the fixed part (2) and be inserted into the limiting hole (311).

7. A sliding door with a folding ladder according to claim 6, characterized in that: The sliding sleeve is provided with a containing groove (52) for containing the elastic piece (521), the outer peripheral wall of the bolt (51) is provided with a sliding part (511) slidingly matched with the inner peripheral wall of the containing groove (52), the elastic piece (521) is sleeved on the outer peripheral wall of the bolt (51), one end of the elastic piece (521) abuts against the inner bottom wall of the containing groove (52), and the other end of the elastic piece (521) abuts against the sliding part (511).