CN111361507B

CN111361507B - Step ladder device and vehicle

Info

Publication number: CN111361507B
Application number: CN202010343744.9A
Authority: CN
Inventors: 王晓莲; 张学博; 丁淼
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-08-17
Anticipated expiration: 2040-04-27
Also published as: CN111361507A

Abstract

The invention belongs to the technical field of vehicles and discloses a vehicle climbing ladder device and a vehicle. This step ladder device includes: a step mechanism; a fixing mechanism connected to the frame; folding mechanism, folding mechanism includes first rotary rod, second rotary rod and elastic component, the both ends of elastic component are connected respectively in first rotary rod and second rotary rod, the elastic component is in tensile state all the time, the one end of first rotary rod is rotated and is connected in fixed establishment, the other end is rotated and is connected in pedaling ladder mechanism, the one end of second rotary rod is rotated and is connected in fixed establishment, the other end is rotated and is connected in pedaling ladder mechanism, first rotary rod, the second rotary rod, it forms quadrilateral structure to pedal between ladder mechanism and the fixed establishment, it is configured to overturn for fixed establishment to pedal ladder mechanism, make pedal ladder mechanism switch at fold condition and expansion state. The pedaling ladder device has a damping and speed reducing effect in the folding process, and is good in use comfort.

Description

Step ladder device and vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a vehicle climbing ladder device and a vehicle.

Background

At present, current commercial car is with stepping on car ladder device generally divide into fixed structure and foldable structure, steps on car ladder device and adopts foldable structure, appears exerting oneself too violently easily and the striking incident's that leads to emergence, and user experience feels relatively poor folding in-process. The pedaling ladder device adopts a fixed structure and is fixedly connected to a frame or other support structures, the position is not movable, and the pedaling ladder device has the following defects:

1. the traditional fixed type pedaling ladder device occupies a limited arrangement space outside a frame, and the use frequency of the traditional fixed type pedaling ladder device is not high, so that the occupied space utilization rate is not high;

2. the traditional fixed type pedaling ladder device is generally arranged on the transverse outer side of a frame, the utilization rate is low at ordinary times, but the transverse arrangement space of the whole vehicle is occupied, so that the transverse space arrangement difficulty of the whole vehicle with small allowance is higher;

3. the traditional fixed type pedaling ladder device is generally in a cantilever beam structure and is hung on the outer side of a frame, and the pedaling ladder device is useless in the driving process, but can become the dynamic load of the frame, so that the load burden of the frame is increased;

4. if the traditional fixed type pedaling ladder device is fixed on the outer side of a rear processor or the outer side of a battery frame, the pedaling ladder device forms a structure similar to a guardrail, the maintenance accessibility of systems and parts in the device is poor, and when a user wants to maintain parts of the pedaling ladder blocking the inner side, the user needs to bypass the pedaling ladder or remove the pedaling ladder, so that the maintenance difficulty and the maintenance cost are increased.

Disclosure of Invention

The invention aims to provide a boarding ladder device and a vehicle, which improve the space utilization rate, reduce the arrangement difficulty, the maintenance difficulty and the load burden, have small folding impact and are comfortable for users to use.

In order to achieve the purpose, the invention adopts the following technical scheme:

a step ladder device comprising:

a step mechanism;

a fixing mechanism connected to the frame;

a folding mechanism, which includes a first rotating rod, a second rotating rod and an elastic element, two ends of the elastic element are respectively connected to the first rotating rod and the second rotating rod, the elastic element is always in a stretching state, one end of the first rotating rod is rotatably connected to the fixing mechanism, the other end of the first rotating rod is rotatably connected to the step ladder mechanism, one end of the second rotating rod is rotatably connected to the fixing mechanism, the other end of the second rotating rod is rotatably connected to the step ladder mechanism, a quadrilateral structure is formed among the first rotating rod, the second rotating rod, the step ladder mechanism and the fixing mechanism, the step ladder mechanism is configured to turn over relative to the fixing mechanism, so that the step ladder mechanism is switched between a folded state and an unfolded state, wherein the folded state is that the step ladder mechanism is horizontally arranged above the fixing mechanism, the unfolding state is that the pedaling ladder mechanism is vertically arranged on the outer side of the fixing mechanism.

Preferably, the fixing mechanism includes:

the fixing piece is positioned on the outer side of the frame and connected with the frame, and the pedaling ladder mechanism is abutted against the fixing piece in a spreading state;

the working platform is positioned above the frame and connected with the frame, and the pedaling ladder mechanism is arranged on the working platform when the working platform is in a folded state.

Preferably, an end limiting part is arranged on one side, close to the working platform, of the kick-up ladder mechanism and far away from the fixing part, a bayonet is arranged on the working platform corresponding to the end limiting part, and the end limiting part is selectively arranged in the bayonet in a penetrating manner and abutted against the top of the fixing part.

Preferably, a lateral limiting member is disposed on one side of the step mechanism close to the working platform, the working platform is provided with a limiting hole corresponding to the lateral limiting member, and the lateral limiting member selectively penetrates through the limiting hole and abuts against the outer side surface of the fixing member.

Preferably, the vehicle body further comprises a bracket mechanism, the bracket mechanism is arranged on the fixing mechanism and connected to the vehicle frame, and the bracket mechanism is respectively and rotatably connected to the first rotating rod and the second rotating rod.

Preferably, the support mechanism comprises a first mounting part, one end of the first mounting part is connected to the frame, and the other end of the first mounting part is connected to the fixing mechanism.

Preferably, the support mechanism further comprises a frame and a second mounting portion, wherein the frame is arranged on the side face of the fixing mechanism and connected with the fixing mechanism through the second mounting portion.

Preferably, the support mechanism further comprises:

the third mounting part is arranged on the frame and is rotatably connected with the first rotating rod;

a fourth mounting portion, the fourth mounting portion set up in on the frame and rotate connect in the second rotary rod.

Preferably, the step mechanism includes a stepping portion and vertical plates vertically disposed on two sides of the stepping portion, and the vertical plates are respectively and rotatably connected to the first rotating rod and the second rotating rod.

In order to achieve the above object, the present invention further provides a vehicle, which includes a frame and the above-mentioned step device, wherein the step device is disposed on the frame.

The invention has the beneficial effects that:

according to the step device provided by the invention, under the condition that the step mechanism is not needed, the step mechanism is in a folded state, the step mechanism can be completely and horizontally folded above the fixing mechanism, the transverse space of the whole vehicle is not occupied, the outer width of the whole vehicle is more easily met with the national standard and regulation requirements, a larger arrangement space is provided for other transversely arranged parts, the problem that the transverse arrangement space of the whole vehicle is limited is solved, meanwhile, the step mechanism is ensured not to add dynamic load to the frame under the non-use state, and the risk of fatigue damage of the frame and the step mechanism is reduced; under the condition that the ladder mechanism of pedaling the bicycle is needed, only need artifical manual pulling to pedal the ladder mechanism of pedaling, utilize first rotary rod and second rotary rod, realize pedaling the ladder mechanism of pedaling the bicycle for fixed establishment's upset, make and pedal the ladder mechanism of pedaling the bicycle and switch to the expansion state by fold condition, pedal the ladder mechanism of pedaling the bicycle this moment and set up perpendicularly in fixed establishment's the outside, the user of being convenient for tramples to supply the user to pedal the frame and carry out the operation, have convenient and practical advantage. This step ladder device can fold and accomodate, has avoided sheltering from to other structures, has improved the space of arranging of whole car, has also improved the convenience of other structure maintenance simultaneously.

Through setting up first rotary rod, second rotary rod, forming quadrilateral structure between step ladder mechanism and the fixed establishment, specifically be unparallel quadrilateral structure, can realize rotation function, realize in rotatory process that step ladder mechanism is rotatory to vertical position by horizontal position. Through be provided with the elastic component between first rotary rod and second rotary rod, the elastic component has played the effect that elasticity resets, the elastic component is in tensile state all the time, guarantee that the elastic component has pulling force inwards, in order to ensure the state that first rotary rod and second rotary rod drawn close to the centre, ensure to pedal the reliability of the state that the ladder mechanism kept horizontal placing, and pedal the ladder mechanism and carry out the upset in-process, the elastic component provides the damping when rotating for pedaling the ladder mechanism, it is unlikely to too fast to make the rotation speed, avoid colliding with, consequently, have damping speed reduction effect at folding in-process, avoid exerting oneself too hard and the striking incident's that leads to emergence, it is good to use the travelling comfort.

The invention also provides a vehicle which comprises a frame and the pedaling ladder device, wherein the pedaling ladder device is arranged on the frame. Through setting up the ladder device of pedaling the car, improve space utilization, reduce and arrange the degree of difficulty, the maintenance degree of difficulty to reduce manufacturing cost and cost of maintenance, simultaneously, reduced the load burden, folding impact is little, and the user uses the travelling comfort good, has improved user satisfaction.

Drawings

Fig. 1 is a schematic structural view of the step ladder device of the present invention in a folded state;

FIG. 2 is a side view of the step ladder assembly of the present invention in a folded position;

FIG. 3 is a schematic structural view of the step ladder assembly of the present invention during the turning process;

FIG. 4 is a side view of the step ladder assembly of the present invention during a turn-over process;

FIG. 5 is a schematic structural view of the step ladder assembly of the present invention in a deployed state;

fig. 6 is a side view of the step ladder assembly of the present invention in a deployed state.

In the figure:

100. a frame;

1. a step mechanism; 2. a fixing mechanism; 3. a folding mechanism; 4. a support mechanism;

11. an end stop; 12. a lateral limit piece; 13. a stepping part; 14. a vertical plate;

21. a fixing member; 22. a working platform; 221. a bayonet; 222. a limiting hole;

31. a first rotating rod; 32. a second rotating rod; 33. an elastic member;

41. a first mounting portion; 42. a frame; 43. a second mounting portion; 44. a third mounting portion; 45. and a fourth mounting portion.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The present embodiment provides a step device, as shown in fig. 1, the step device includes a step mechanism 1, a fixing mechanism 2 and a folding mechanism 3, the step mechanism 1 is used for a user to step, the fixing mechanism 2 is connected to a frame 100, and the fixing mechanism 2 plays a role of integral support. The folding mechanism 3 includes a first rotating rod 31, a second rotating rod 32 and an elastic element 33, the elastic element 33 is specifically a spring, two ends of the elastic element 33 are respectively connected to the first rotating rod 31 and the second rotating rod 32, the elastic element 33 is always in a stretching state, and the elastic element 33 plays a role in elastic stretching. The first rotating rod 31 is a straight rod structure, one end of the first rotating rod 31 is rotatably connected to the fixing mechanism 2, and the other end of the first rotating rod 31 is rotatably connected to the step-up ladder mechanism 1 to form a rotating pair which can rotate. The second rotating rod 32 is a bent rod structure, one end of the second rotating rod 32 is rotatably connected to the fixing mechanism 2, and the other end of the second rotating rod 32 is rotatably connected to the step ladder mechanism 1 to form a rotating pair which can rotate. The first rotating rod 31, the second rotating rod 32, the stepping ladder mechanism 1 and the fixing mechanism 2 form a quadrilateral structure, and the stepping ladder mechanism 1 is configured to turn relative to the fixing mechanism 2, so that the stepping ladder mechanism 1 is switched between a folded state and an unfolded state, wherein the folded state is that the stepping ladder mechanism 1 is horizontally arranged above the fixing mechanism 2, and the unfolded state is that the stepping ladder mechanism 1 is vertically arranged outside the fixing mechanism 2.

As shown in fig. 1 and 2, in the case that the step mechanism 1 is not required to be stepped, the step mechanism 1 is in a folded state, and the step mechanism 1 can be completely and horizontally folded above the fixing mechanism 2, so that the transverse space of the whole vehicle is not occupied, the outer width of the whole vehicle is easier to meet the requirements of national standards and regulations, a larger arrangement space is provided for other transversely arranged parts, and the problem that the transverse arrangement space of the whole vehicle is limited is solved; as shown in fig. 3 and 4, in the case of needing to step on the ladder mechanism 1, only the person needs to manually pull the ladder mechanism 1, and the first rotary rod 31 and the second rotary rod 32 are utilized to realize the overturning of the ladder mechanism 1 relative to the fixing mechanism 2, as shown in fig. 5 and 6, the ladder mechanism 1 is switched from the folded state to the unfolded state, and at this time, the ladder mechanism 1 is vertically arranged outside the fixing mechanism 2, so that the user can conveniently step on the ladder mechanism, and the user can step on the frame 100 to operate the ladder mechanism, which has the advantages of convenience and practicability. Therefore, the car stepping ladder device can be folded and stored, shielding of other structures is avoided, arrangement space of the whole car is improved, and convenience in maintenance of other structures is improved.

Through setting up first rotary rod 31, second rotary rod 32, forming quadrilateral structure between pedaling the ladder mechanism 1 and the fixed establishment 2, specifically be unparallel quadrilateral structure, can realize rotation function, realize pedaling the ladder mechanism 1 and rotate to vertical position by horizontal position in rotatory in-process. Through being provided with elastic component 33 between first rotary rod 31 and second rotary rod 32, elastic component 33 has played the effect that the elasticity resets, elastic component 33 is in tensile state all the time, guarantee that elastic component 33 has inward pulling force, in order to ensure the state that first rotary rod 31 and second rotary rod 32 draw close to the centre, guarantee to pedal the reliability of ladder mechanism 1 in the state that the level was placed, and pedal ladder mechanism 1 and carry out the upset in-process, elastic component 33 provides the damping for when pedaling ladder mechanism 1 and rotating, make the rotational speed of pedaling ladder mechanism 1 unlikely too fast, avoid the condition of colliding with, consequently have damping speed reduction effect in folding process, avoid exerting oneself the emergence of the striking incident that too violently leads to, the use travelling comfort is good.

Further, the shape of the step mechanism 1 is a rectangular frame structure, the step mechanism 1 includes a step part 13 and a vertical plate 14, the step part 13 is used for a user to step on, in this embodiment, the number of the step parts 13 is preferably three, and the specific number thereof can be adjusted according to actual needs. Vertical plates 14 are vertically arranged on both sides of the stepping part 13, and the vertical plates 14 are respectively and rotatably connected to a first rotating rod 31 and a second rotating rod 32. Optionally, a first mounting hole and a second mounting hole are respectively disposed on the vertical plate 14, the first rotating shaft is respectively penetrated through the first mounting hole and the first rotating rod 31, so that the first rotating rod 31 can rotate around the first rotating shaft, and the second rotating shaft is respectively penetrated through the second mounting hole and the second rotating rod 32, so that the second rotating rod 32 can rotate around the second rotating shaft.

Further, the fixing mechanism 2 comprises a fixing member 21 and a working platform 22, and the fixing member 21 is located at the outer side of the vehicle frame 100 and connected with the vehicle frame, so that the fixing member 21 and the vehicle frame 100 form an integral structure, and the fixing and supporting effects are good. In the deployed state, the step ladder mechanism 1 abuts against the fixing member 21, and the fixing member 21 functions to support the step ladder mechanism 1. The working platform 22 is located above and connected to the frame 100, and when the vehicle is folded, the step mechanism 1 is disposed on the working platform 22, and the working platform 22 plays a role of accommodating the step mechanism 1.

In order to ensure the stability of the boarding ladder mechanism 1 in the storage state and the deployed state, as shown in fig. 3 and 4, an end limiting piece 11 is disposed on one side of the boarding ladder mechanism 1 close to the working platform 22 and away from the fixing piece 21, the working platform 22 is provided with a bayonet 221 corresponding to the end limiting piece 11, and the end limiting piece 11 is selectively inserted into the bayonet 221 and abuts against the top of the fixing piece 21. Specifically, when the boarding ladder mechanism 1 is in the storage state, the end limiting piece 11 of the boarding ladder mechanism 1 is inserted into the bayonet 221 to limit the end position of the boarding ladder mechanism 1; when the boarding ladder mechanism 1 is in the unfolded state, the end limiting part 11 of the boarding ladder mechanism 1 is screwed out from the bayonet 221 of the working platform 22, and when the boarding ladder mechanism 1 rotates to the vertical state, the end limiting part 11 of the boarding ladder mechanism 1 is arranged on the top surface of the fixing part 21 and is abutted against the top surface of the fixing part 21, so that the limiting between the end limiting part 11 and the fixing part 21 is realized, and the stable and reliable position of the boarding ladder mechanism 1 in the vertical working state is ensured.

In order to further ensure the stability of the pedaling ladder mechanism 1 in the storage state and the unfolding state, a lateral limiting member 12 is disposed on one side of the pedaling ladder mechanism 1 close to the working platform 22, the working platform 22 is provided with a limiting hole 222 corresponding to the lateral limiting member 12, and the lateral limiting member 12 is selectively inserted into the limiting hole 222 and abuts against the outer side surface of the fixing member 21.

Specifically, when the boarding ladder mechanism 1 is in the storage state, the lateral limiting piece 12 of the boarding ladder mechanism 1 is inserted into the limiting hole 222 to limit the lateral position of the boarding ladder mechanism 1; when the pedaling ladder mechanism 1 is in the unfolding state, the lateral limiting member 12 of the pedaling ladder mechanism 1 is screwed out from the limiting hole 222 of the working platform 22, and when the pedaling ladder mechanism 1 rotates to the vertical state, the lateral limiting member 12 of the pedaling ladder mechanism 1 is arranged on the side surface of the fixing member 21 and is abutted against the fixing member, so that the limiting between the lateral limiting member 12 and the fixing member 21 is realized, and the position stability and reliability of the pedaling ladder mechanism 1 in the vertical working state are ensured.

Carry on spacingly through end locating part 11 and mounting 21, side direction locating part 12 and mounting 21 carry on spacingly, and when the staff stepped on trampling portion 13, end locating part 11 and side direction locating part 12 were the main stress point, played the guard action to folding mechanism 3.

Optionally, the buffer elements are arranged on one side of the end limiting part 11 facing the working platform 22 and one side of the lateral limiting part 12 facing the working platform 22, so that the collision is avoided, noise can be reduced, and the user experience is good.

In order to further ensure the stabilizing effect between the pedaling ladder mechanism 1 and the working platform 22, optionally, a locking mechanism is disposed between the upright plate 14 of the pedaling ladder mechanism 1 and the working platform 22, specifically, one of the upright plate 14 and the working platform 22 is provided with a buckle, and the other is provided with a clamping groove, and the buckle is clamped in the clamping groove, so as to fix the pedaling ladder mechanism 1 and the working platform 22. It will be appreciated that before the step mechanism 1 is turned over, the locking mechanism needs to be unlocked to unlock the step mechanism 1 and the working platform 22.

Further, the step ladder device further comprises a bracket mechanism 4, the bracket mechanism 4 is disposed on the fixing mechanism 2 and connected to the frame 100, and the bracket mechanism 4 is respectively and rotatably connected to the first rotating rod 31 and the second rotating rod 32. The support mechanism 4 is arranged on the fixing mechanism 2 and connected to the frame 100, and the support mechanism 4 plays a role of intermediate connection and supports the fixing mechanism 2. The bracket mechanism 4 is respectively connected to the first rotating rod 31 and the second rotating rod 32 in a rotating manner, and the bracket mechanism 4 supports the first rotating rod 31 and the second rotating rod 32, so as to enhance the bearing capacity of the first rotating rod 31 and the second rotating rod 32.

Specifically, the support mechanism 4 includes a first mounting portion 41, the first mounting portion 41 is specifically a connection column, one end of the first mounting portion 41 is connected to the frame 100, and the other end is connected to the fixing member 21 of the fixing mechanism 2, so that the fixing member 21 and the frame 100 are connected into an integral structure, and the structure is stable.

Further, the support mechanism 4 further includes a frame 42 and a second mounting portion 43, the frame 42 is a square structure as a whole, the frame 42 is disposed on the side of the fixing mechanism 2, and the frame 42 plays a role of reinforcing the fixing member 21 of the fixing mechanism 2. The second mounting parts 43 are arranged at the four corners of the frame 42, and the frame 42 is connected with the fixing part 21 through the second mounting parts 43, so that the fixing effect between the frame 42 and the fixing part 21 is good, and the connection reliability is improved.

Further, the bracket mechanism 4 further includes a third mounting portion 44 and a fourth mounting portion 45 both disposed on the frame 42, the third mounting portion 44 is disposed near one of the right angles of the frame 42, the third mounting portion 44 is rotatably connected to the first rotating rod 31, and by disposing the third mounting portion 44, the rotating effect of the first rotating rod 31 with respect to the fixing member 21 is ensured. The fourth mounting portion 45 is disposed near one of right angles of the frame 42, and the fourth mounting portion 45 is disposed on the frame 42 and rotatably connected to the second rotating rod 32. By providing the fourth mounting portion 45, the rotating effect of the second rotating rod 32 with respect to the fixing piece 21 is ensured.

The working process of the boarding ladder device provided by the embodiment is as follows:

as shown in fig. 1 and 2, in a situation that the step mechanism 1 is not needed, the step mechanism 1 is in a folded state, the step mechanism 1 can be completely and horizontally folded above the working platform 22, the end limiting piece 11 is inserted into the bayonet 221, the side limiting piece 12 is inserted into the limiting hole 222, and the locking mechanism is used to lock the step mechanism 1 and the working platform 22, at this time, the elastic piece 33 is in a stretched state, the elastic piece 33 generates an inward pulling force, so that the first rotating rod 31 and the second rotating rod 32 are ensured to be drawn close to each other towards the middle, and the step mechanism 1 is ensured to be kept in a horizontally placed state;

as shown in fig. 3 and 4, in the case that the step mechanism 1 needs to be kicked, after the locking mechanism locks the step mechanism 1 and the working platform 22, the step mechanism 1 is manually pulled, the step mechanism 1 is turned over in the direction close to the fixed mechanism 2 by using the first rotating rod 31 and the second rotating rod 32, the end limiting member 11 is disengaged from the bayonet 221, the lateral limiting member 12 is disengaged from the limiting hole 222, and the elastic member 33 is always in the stretching state during the turning process of the step mechanism 1, so as to ensure that the pulling force towards the inner side is provided, ensure that the first rotating rod 31 and the second rotating rod 32 are always in the inward closing state, provide damping for the rotation of the step mechanism 1, prevent the rotating speed from being too fast, and avoid collision;

as shown in fig. 5 and 6, when the pedaling ladder mechanism 1 is switched from the folded state to the unfolded state, the pedaling ladder mechanism 1 is rotated from the horizontal position to the vertical position in the rotating process, the pedaling ladder mechanism 1 is vertically arranged on the outer side of the fixing member 21, at this time, the end limiting member 11 of the pedaling ladder mechanism 1 abuts against the top of the fixing member 21 and limits the position, the lateral limiting member 12 abuts against the outer side surface of the fixing member 21 and limits the position, when the pedaling ladder mechanism 1 is in the vertical working position, the elastic member 33 is always in the stretching state, so as to ensure that the pulling force to the inner side is provided, ensure that the first rotating rod 31 and the second rotating rod 32 are constantly in the inward closing state, ensure that the pedaling ladder mechanism 1 can stably close to the fixing member 21, and ensure that the pedaling ladder mechanism 1 is in the vertical state.

The embodiment further provides a vehicle, which comprises a frame 100 and the above-mentioned step device, wherein the step device is arranged on the frame 100. Through setting up the ladder device of pedaling the car, improve space utilization, reduce and arrange the degree of difficulty, the maintenance degree of difficulty to reduce manufacturing cost and cost of maintenance, simultaneously, reduced the load burden, folding impact is little, and the user uses the travelling comfort good, has improved user satisfaction.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are based on the orientations and positional relationships shown in the drawings and are used for convenience in description and simplicity in operation, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A step ladder device, comprising:

a step mechanism (1);

a fixing mechanism (2) connected to the frame (100);

a folding mechanism (3), the folding mechanism (3) includes a first rotating rod (31), a second rotating rod (32), and an elastic member (33), two ends of the elastic member (33) are respectively connected to the first rotating rod (31) and the second rotating rod (32), the elastic member (33) is always in a stretching state, one end of the first rotating rod (31) is rotatably connected to the fixing mechanism (2), the other end of the first rotating rod is rotatably connected to the step ladder mechanism (1), one end of the second rotating rod (32) is rotatably connected to the fixing mechanism (2), the other end of the second rotating rod is rotatably connected to the step ladder mechanism (1), the first rotating rod (31), the second rotating rod (32), the step ladder mechanism (1), and the fixing mechanism (2) form a quadrilateral structure therebetween, and the step ladder mechanism (1) is configured to be turned over relative to the fixing mechanism (2), switching the pedaling ladder mechanism (1) between a folded state and an unfolded state, wherein the pedaling ladder mechanism (1) is horizontally arranged above the fixing mechanism (2), and the unfolded state is that the pedaling ladder mechanism (1) is vertically arranged outside the fixing mechanism (2); the fixing mechanism (2) comprises:

a fixing member (21), wherein the fixing member (21) is positioned on the outer side of the frame (100) and connected with the frame, and the pedaling ladder mechanism (1) is abutted against the fixing member (21) in the unfolding state;

the working platform (22), the working platform (22) is positioned above the vehicle frame (100) and connected with the vehicle frame, and when the vehicle frame is folded, the pedaling ladder mechanism (1) is arranged on the working platform (22); the step ladder mechanism (1) is provided with an end limiting piece (11) on one side close to the working platform (22) and far away from one side of the fixing piece (21), the working platform (22) is provided with a bayonet (221) corresponding to the end limiting piece (11), and the end limiting piece (11) is selectively arranged on the bayonet (221) in a penetrating manner and abutted against the top of the fixing piece (21).

2. The stair climbing device according to claim 1, characterized in that a lateral stop (12) is disposed on a side of the stair climbing mechanism (1) close to the working platform (22), the working platform (22) is provided with a stop hole (222) corresponding to the lateral stop (12), and the lateral stop (12) is selectively inserted into the stop hole (222) and abuts against an outer side surface of the fixing member (21).

3. The kicking ladder device according to claim 1, characterized by further comprising a leg mechanism (4), the leg mechanism (4) being disposed on the fixing mechanism (2) and connected to the frame (100), the leg mechanism (4) being rotatably connected to the first rotating rod (31) and the second rotating rod (32), respectively.

4. The stepping ladder device according to claim 3, wherein the bracket mechanism (4) comprises a first mounting portion (41), one end of the first mounting portion (41) is connected to the frame (100) and the other end is connected to the fixing mechanism (2).

5. The stepping ladder device according to claim 3 or 4, wherein the leg mechanism (4) further comprises a frame (42) and a second mounting portion (43), the frame (42) being disposed at a side of the fixing mechanism (2) and connected thereto by the second mounting portion (43).

6. The pedaling ladder assembly according to claim 5, wherein said bracket mechanism (4) further comprises:

a third mounting portion (44), the third mounting portion (44) being provided on the frame (42) and rotatably connected to the first rotating rod (31);

a fourth mounting portion (45), the fourth mounting portion (45) set up in on the frame (42) and rotate connect in second rotary rod (32).

7. The boarding ladder device according to claim 1, characterized in that the boarding ladder mechanism (1) comprises a stepping part (13) and vertical plates (14) vertically arranged at both sides of the stepping part (13), and the vertical plates (14) are respectively and rotatably connected to the first rotating rod (31) and the second rotating rod (32).

8. A vehicle, characterized by comprising a frame (100) and a kicking ladder device according to any one of claims 1-7, which is arranged on the frame (100).