Drawing type folding safety crawling ladder for vehicle

Abstract

A drawing type folding safety crawling ladder for an automobile belongs to the technical field of automobiles and comprises a fixing frame, a telescopic moving frame, a rotary crawling ladder and a foldable handrail, a slide way is arranged on the inner side of the fixing frame, the telescopic moving frame is arranged in the slide way of the fixing frame in a sliding mode, and the rotary crawling ladder is hinged to the rear end of the telescopic moving frame. The rotary ladder stand can be lifted up and pulled out of or pushed into the fixing frame along with the telescopic moving frame, a foldable handrail is arranged on one side of the rear end of the telescopic moving frame, and the foldable handrail can be pulled out of the fixing frame along with the telescopic moving frame to be used or pushed into the fixing frame to be hidden after being folded. The device is compact and simple in structure, small in occupied space, labor-saving and convenient to operate, low in manufacturing cost and good in hiding performance. Compared with the patent CN103010108B, the novel ladder stand is provided with the foldable handrail, when a person climbs the ladder stand, the person can hold the handrail with hands and cannot fall off, personal safety is guaranteed, in addition, the foldable handrail can be hidden, the structure is compact and simple, and the occupied space is small.

Description

Technical Field

[0001] The invention belongs to the technical field of automobiles, and in particular relates to a pull-out folding safety ladder for a vehicle. Background Art

[0002] The authorization announcement number CN103010108B and the authorization announcement date October 28, 2015 discloses "Hidden ladder for vehicle-mounted power station and its installation method", in which the structure is a hidden ladder for vehicle-mounted. The disadvantage is that the ladder has no handrails. When the ladder of this structure is used in a motorhome or other civilian vehicle, the elderly or children are prone to fall from the ladder when climbing up, causing safety accidents. Summary of the invention

[0003] The purpose of the present invention is to solve the problem of the lack of handrails in the patent with authorization announcement number CN103010108B, which is prone to safety accidents, and to provide a pull-out folding safety ladder for vehicles. The invention has a safety handrail that automatically rises and falls with the rotating ladder, ensuring the safety of people when going up and down the ladder.

[0004] The present invention adopts the following technical solutions: A vehicle-use pull-out folding safety ladder comprises a fixed frame, a telescopic movable frame, a rotating ladder and a foldable handrail. The fixed frame is provided with a slideway inside, the telescopic movable frame is slidably arranged in the slideway of the fixed frame, the rotating ladder is hinged with the rear end of the telescopic movable frame, the rotating ladder can be lifted and pulled out or pushed in from the fixed frame along with the telescopic movable frame, a foldable handrail is arranged on one side of the rear end of the telescopic movable frame, and the foldable handrail can be pulled out from the fixed frame along with the telescopic movable frame for use or pushed in and hidden after being folded.

[0005] Foldable handrails are arranged on both sides of the rear end of the telescopic movable frame.

[0006] The foldable armrest is composed of an armrest rod, a linkage mechanism, and a safety support mechanism. The linkage mechanism is composed of a triangular magnifying plate, a first hinge plate, and a second hinge plate. The safety support mechanism is composed of two support plates. The lower end of the armrest rod is hinged to the rear end of the fixing frame, one corner of the triangular magnifying plate is hinged to the fixing frame, and the other two corners of the triangular magnifying plate are hinged to the first hinge plate and the second hinge plate respectively. The other end of the first hinge plate is hinged to the fixing frame, and the other end of the second hinge plate is hinged to the armrest rod; the two support plates of the safety support mechanism are hinged to each other, and the other ends of the two support plates are hinged to the fixing frame and the middle part of the armrest rod respectively. The linkage mechanism moves with the armrest rod to play a self-locking role. The safety support mechanism plays a safety support role after the armrest rod is erected.

[0007] A buffer is arranged on the inner side of the front part of the fixing frame.

[0008] The fixing frame is provided with mounting ears for mounting the fixing frame on the bottom of the vehicle.

[0009] Rollers are arranged on both sides of the telescopic movable frame through shafts, and the rollers are located in the slideways of the fixed frame, which is conducive to the smooth sliding of the telescopic movable frame.

[0010] Working process and principle of the present invention: Hidden state: The rotating ladder and the foldable handrail are folded and slidably arranged in the fixed frame along with the telescopic movable frame, and the whole is hidden and fixed at the bottom of the vehicle.

[0011] Stretched state: manually pull the revolving ladder outwards to pull the revolving ladder, foldable handrails and telescopic mobile frame out of the fixed frame.

[0012] Usage: Rotate the pulled-out revolving ladder downward until the outer end of the revolving ladder touches the bottom and then the ladder can be used; raise the foldable handrail and then the ladder can be used.

[0013] Folded state: lift the rotating ladder to be flush with the telescopic mobile frame, fold the foldable handrail on the telescopic mobile frame, and then push the rotating ladder, foldable handrail and telescopic mobile frame into the fixed frame to hide them.

[0014] Beneficial effects of the present invention: 1. The present invention has a compact and simple structure, occupies a small space, is easy to operate, has a low production cost, and is well concealed.

[0015] 2. Compared with the CN103010108B patent, the present invention has a handrail that automatically rises and falls with the rotating ladder. When people go up and down the ladder, they can hold the handrail without falling, which ensures the personal safety of people when going up and down the ladder, especially the personal safety of the elderly and children. In addition, the foldable handrail can be hidden, the structure is compact and simple, and it occupies little space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the use state of the present invention; Figure 2 It is a three-dimensional schematic diagram of the present invention in a pulled-out state; Figure 3 It is a three-dimensional schematic diagram of the hidden state of the present invention; Figure 4 is a three-dimensional schematic diagram of the present invention installed on a vehicle in use; Figure 5 is a three-dimensional schematic diagram of the present invention installed on a vehicle in a pulled-out state; Figure 6 It is a three-dimensional schematic diagram of the hidden state of the present invention installed on a vehicle. DETAILED DESCRIPTION

[0017] like Figure 1 , Figure 2 and Figure 3 As shown, a pull-out folding safety ladder for a vehicle comprises a fixed frame 1, a telescopic movable frame 2, a rotating ladder 3 and a foldable handrail 4. The fixed frame 1 has a slideway 11 on the inner side, the telescopic movable frame 2 is slidably arranged in the slideway 11 of the fixed frame 1, the rotating ladder 3 is hinged to the rear end of the telescopic movable frame 2, and the foldable handrail 4 is arranged on one side or both sides of the rear end of the telescopic movable frame 2. The rotating ladder 3 can be lifted and pulled out or pushed in from the fixed frame 1 along with the telescopic movable frame 2. After the foldable handrail 4 is folded, it can be pulled out from the fixed frame 1 along with the telescopic movable frame 2 for use or pushed in for hiding.

[0018] The foldable handrail 4 is composed of a handrail rod 41, a linkage mechanism 42, and a safety support mechanism 43. The linkage mechanism 42 is composed of a triangular enlarged plate 421, a first hinge plate 422, and a second hinge plate 423. The safety support mechanism 43 is composed of two support plates 431. The lower end of the handrail rod 41 is hinged to the rear end of the fixing frame 1, one corner of the triangular magnifying plate 421 is hinged to the fixing frame 1, and the other two corners of the triangular magnifying plate 421 are hinged to the first hinge plate 422 and the second hinge plate 423 respectively. The other end of the first hinge plate 422 is hinged to the fixing frame 1, and the other end of the second hinge plate 423 is hinged to the handrail rod 41; the two support plates 431 of the safety support mechanism 43 are hinged to each other, and the other ends of the two support plates 431 are hinged to the middle parts of the fixing frame 1 and the handrail rod 41 respectively. The linkage mechanism 42 moves with the handrail rod 41 to play a self-locking role. The safety support mechanism 43 plays a safety support role after the handrail rod 41 is erected.

[0019] A buffer 12 is arranged on the inner side of the front part of the fixed frame 1 to buffer the overall impact force of the telescopic movable frame 2, the rotating ladder 3 and the foldable handrail 4.

[0020] The fixing frame 1 is provided with a mounting ear 13 for mounting the fixing frame 1 on the bottom of the vehicle.

[0021] Rollers 21 are provided on both sides of the telescopic movable frame 2 through shafts. The rollers 21 are located in the slideway 11 of the fixed frame 1 to facilitate smooth sliding of the telescopic movable frame 2 .

[0022] The working process and principle of this embodiment: Hidden state: Figure 3 and Figure 6 As shown, the rotating ladder 3 and the foldable handrail 4 are folded and slidably arranged in the fixed frame 1 along with the telescopic movable frame 2, and are integrally hidden and fixed at the bottom of the vehicle.

[0023] Stretching state: Figure 2 and Figure 5As shown, the revolving ladder 3 is manually pulled outwards, and the revolving ladder 3 , the foldable handrail 4 and the telescopic movable frame 2 are pulled out from the fixed frame 1 .

[0024] Use status: Figure 1 and Figure 4 As shown, the pulled-out rotating ladder 3 is rotated downward, and the outer end of the rotating ladder 3 touches the bottom before use, and the foldable handrail 4 is erected before use.

[0025] Folding state: Figure 3 and Figure 6 As shown, the rotating ladder 3 is lifted up to be flush with the telescopic movable frame 2, the foldable handrail 4 is folded on the telescopic movable frame 2, and then the rotating ladder 3, the foldable handrail 4 and the telescopic movable frame 2 are pushed into the fixed frame 1 to be hidden.

Claims

1. A vehicle-use pull-out foldable safety ladder, comprising a fixed frame (1), a telescopic movable frame (2) and a rotating ladder (3), wherein the fixed frame (1) has a slideway (11) on the inner side, the telescopic movable frame (2) is slidably arranged in the slideway (11) of the fixed frame (1), the rotating ladder (3) is hinged to the rear end of the telescopic movable frame (2), and the rotating ladder (3) can be lifted and pulled out or pushed out of the fixed frame (1) along with the telescopic movable frame (2), characterized in that: It also includes a foldable armrest (4), which is arranged on one side of the rear end of the telescopic movable frame (2). After being folded, the foldable armrest (4) can be pulled out or pushed in from the fixed frame (1) along with the telescopic movable frame (2).

2. The pull-out foldable safety ladder for vehicles according to claim 1, characterized in that: Foldable handrails (4) are provided on both sides of the rear end of the telescopic movable frame (2).

3. The pull-out foldable safety ladder for vehicles according to claim 2, characterized in that: The foldable handrail (4) is composed of a handrail rod (41), a linkage mechanism (42), and a safety support mechanism (43). The linkage mechanism (42) is composed of a triangular magnifying plate (421), a first hinge plate (422), and a second hinge plate (423). The safety support mechanism (43) is composed of two support plates (431). The lower end of the handrail rod (41) is hinged to the rear end of the fixing frame (1). One corner of the triangular magnifying plate (421) is hinged to the fixing frame (1). The other two corners of the triangular magnifying plate (421) are respectively hinged to the first hinge plate (422). ), and the second hinge plate (423), the other end of the first hinge plate (422) is hinged to the fixing frame (1), and the other end of the second hinge plate (423) is hinged to the handrail rod (41); the two support plates (431) of the safety support mechanism (43) are hinged to each other, and the other ends of the two support plates (431) are respectively hinged to the fixing frame (1) and the middle part of the handrail rod (41), the linkage mechanism (42) moves with the handrail rod (41) to play a self-locking role, and the safety support mechanism (43) plays a role of safety support after the handrail rod (41) is erected.

4. A pull-out foldable safety ladder for vehicles according to claim 1 or 2, characterized in that: A buffer (12) is provided on the inner side of the front portion of the fixing frame (1).

5. A pull-out foldable safety ladder for vehicles according to claim 1 or 2, characterized in that: The fixing frame (1) is provided with a mounting ear (13) for mounting the fixing frame (1) on the bottom of a vehicle.

6. A pull-out foldable safety ladder for vehicles according to claim 1 or 2, characterized in that: Rollers (21) are arranged on both sides of the telescopic movable frame (2) via shafts. The rollers (21) are located in the slideway (11) of the fixed frame (1), which facilitates the smooth sliding of the telescopic movable frame (2).

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