Folding type step framework and cross beam assembly

Abstract

The utility model discloses a folding type step framework cross beam assembly, and belongs to the technical field of van accessories. The utility model relates to a folding type step framework cross beam assembly which comprises two upper connecting cross beams and two lower connecting plates, and folding frames are installed between the two lower connecting plates and the two upper connecting cross beams. A first sleeving pedal is arranged between the two upper connecting cross beams, and a second sleeving pedal is arranged between the two lower connecting plates. The pedal assembly solves the problems that in the actual using process of an existing pedal assembly, the structural position is not good, and the safety of a van body is affected, the upper connecting cross beam and the lower connecting plate can be contracted through the second sleeving pedal and the first sleeving pedal, the length of the upper connecting cross beam and the length of the lower connecting plate are reduced, and the structure is simple. And in the folding state, minimum contraction is carried out, so that the collision volume is reduced and the safety is improved in the running process of the van.

Description

Technical Field

[0001] This utility model relates to the technical field of van accessories, specifically a folding step frame crossbeam assembly. Background Technology

[0002] Because of their height, vans usually have one or more steps below the doors. The main purpose of these steps is to make it easier and faster for the driver and passengers to get in and out of the vehicle.

[0003] Chinese patent CN111532208A discloses a multi-functional step pedal for trucks, including a main support column with a horizontal connecting rod welded in the middle. A first step is welded above the main support column, and a second step is welded below it. A third step is connected to the lower surface of the second step. Movable connecting plates are hinged to both ends of the upper surface of the third step and to both ends of the lower surface of the second step. The first and second movable connecting plates are connected to each other by hinges, and a return spring is provided at the connection point. The first and second movable connecting plates fold under the action of the return spring, pulling the third step upwards. This overcomes the shortcomings of existing technologies by adopting a three-layer step pedal. The third step only needs to be positioned above the tire in its retracted state, extending when needed and retracting during driving, which facilitates passenger access and reduces safety risks.

[0004] The step assembly of the aforementioned patent has an unfavorable structural position during actual use, which affects the vehicle body safety of the van; therefore, it does not meet the existing requirements. In response, we propose a foldable step frame beam assembly. Utility Model Content

[0005] The purpose of this utility model is to provide a foldable step frame crossbeam assembly, which solves the problem mentioned in the background art that the step assembly has poor structural position in actual use, affecting the body safety of the van.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a foldable step frame crossbeam assembly, comprising two upper connecting crossbeams and two lower connecting plates, wherein the two lower connecting plates are disposed below the two upper connecting crossbeams, and a folding frame is installed between the two lower connecting plates and the two upper connecting crossbeams;

[0007] A first set of pedals is provided between the two upper connecting crossbeams, and a second set of pedals is provided between the two lower connecting plates.

[0008] Preferably, a connecting frame is provided on the outer side of the upper connecting beam, the connecting frame being used to fix the upper connecting beam and the body frame of the van.

[0009] Preferably, the interior of the first set of pedals is provided with an integrally formed sliding groove, and one end of each of the two upper connecting crossbeams extends into the interior of the first set of pedals and is slidably connected to the first set of pedals through the sliding groove.

[0010] Preferably, the interior of the second set of pedals is provided with an integrally formed sliding groove, and one end of each of the two lower connecting plates extends into the interior of the second set of pedals and is slidably connected to the second set of pedals through the sliding groove.

[0011] Preferably, a bottom adjustment frame is welded to the lower end of the upper connecting beam, a limit block is installed inside the bottom adjustment frame, a first connecting arm is installed at one end of the bottom adjustment frame, and a second connecting arm is installed at the other end of the folding frame.

[0012] Preferably, a third telescopic shaft is installed at the upper end of both the first connecting arm and the second connecting arm, and the upper ends of both the first connecting arm and the second connecting arm are rotatably connected to the bottom adjustment frame through the third telescopic shaft.

[0013] Preferably, a first telescopic shaft is installed at the lower end of the first connecting arm, and the first connecting arm is rotatably connected to the upper end of the folding frame through the first telescopic shaft.

[0014] Preferably, a second telescopic shaft is installed at the lower end of the second connecting arm, and the second connecting arm is rotatably connected to the middle of the folding frame through the second telescopic shaft.

[0015] Preferably, an adjusting sleeve is installed in the middle of the first telescopic shaft, the second telescopic shaft and the third telescopic shaft, and the first telescopic shaft, the second telescopic shaft and the third telescopic shaft extend into the adjusting sleeve and slide in connection with the adjusting sleeve.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model's step assembly allows for easy passenger boarding and alighting by pressing down the lower connecting plate, which in turn moves the folding frame. The folding frame, via the first and second connecting arms, extends the lower connecting plate and the second set of step pedals. This extension lowers the position of the second set of step pedals, facilitating passenger boarding and alighting. The structure is simple and easy to use. Furthermore, the second and first set of step pedals allow for the retraction of the upper connecting beam and lower connecting plate, reducing their length. In the folded state, this minimizes the collision volume and improves safety during vehicle movement. Attached Figure Description

[0018] Figure 1 This is an axonometric view of the extended side of this utility model;

[0019] Figure 2 This is an axonometric view of the front of the folded version of this utility model;

[0020] Figure 3 This is an axonometric view of the side of the folded part of this utility model;

[0021] Figure 4 This is an axonometric view of the present invention after it has been shrunk.

[0022] In the diagram: 1. Upper connecting beam; 101. First set of pedals; 102. Connecting frame; 103. Bottom adjusting frame; 2. Folding frame; 201. First connecting arm; 202. Second connecting arm; 203. First telescopic shaft; 204. Second telescopic shaft; 205. Adjusting sleeve; 206. Third telescopic shaft; 3. Lower connecting plate; 301. Second set of pedals. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To address the issue of poor structural positioning of existing step assemblies affecting the safety of van bodies during actual use, please refer to... Figure 1 - Figure 4 This embodiment provides the following technical solution:

[0025] A folding step frame crossbeam assembly includes two upper connecting crossbeams 1 and two lower connecting plates 3. The two lower connecting plates 3 are disposed below the two upper connecting crossbeams 1, and a folding frame 2 is installed between the two lower connecting plates 3 and the two upper connecting crossbeams 1.

[0026] A first set of pedals 101 is provided between the two upper connecting crossbeams 1, and a second set of pedals 301 is provided between the two lower connecting plates 3. The upper connecting crossbeams 1 and the lower connecting plates 3 can be retracted by the second set of pedals 301 and the first set of pedals 101, reducing the length of the upper connecting crossbeams 1 and the lower connecting plates 3. In the folded state, the retraction is minimized so that the collision volume is reduced and the safety is improved when the van is in motion.

[0027] A connecting frame 102 is provided on the outer side of the upper connecting beam 1. The connecting frame 102 is used to fix the upper connecting beam 1 and the body frame of the van. The connecting frame 102 fixes one side of the upper connecting beam 1 so that it can be retracted.

[0028] The first set of pedals 101 has an integrally formed sliding groove inside. One end of each of the two upper connecting crossbeams 1 extends into the interior of the first set of pedals 101 and is slidably connected to the first set of pedals 101 through the sliding groove. The second set of pedals 301 has an integrally formed sliding groove inside. One end of each of the two lower connecting plates 3 extends into the interior of the second set of pedals 301 and is slidably connected to the second set of pedals 301 through the sliding groove. The upper connecting crossbeams 1 and lower connecting plates 3 can be retracted through the second set of pedals 301 and the first set of pedals 101, so that the length of the upper connecting crossbeams 1 and lower connecting plates 3 is reduced. In the folded state, the retraction is minimized so that the collision volume is reduced and the safety is improved when the van is in motion.

[0029] Adjusting sleeves 205 are installed in the middle of the first telescopic shaft 203, the second telescopic shaft 204, and the third telescopic shaft 206. The first telescopic shaft 203, the second telescopic shaft 204, and the third telescopic shaft 206 all extend into the adjusting sleeve 205 and slide in connection with the adjusting sleeve 205. When the lower connecting plate 3 and the upper connecting beam 1 retract, the first telescopic shaft 203, the second telescopic shaft 204, and the third telescopic shaft 206 can be retracted through the adjusting sleeve 205, so that the entire assembly structure retracts.

[0030] Specifically, one side of the upper connecting beam 1 is fixed by the connecting frame 102. After fixing, it can be retracted. When passengers get on and off, the step assembly presses down the lower connecting plate 3, which drives the folding frame 2 to move. The folding frame 2 moves through the first connecting arm 201 and the second connecting arm 202, extending the lower connecting plate 3 and the second set of pedals 301. After extension, the position of the second set of pedals 301 can be lowered, making it convenient for passengers to get on and off. The structure is simple and easy to use. Furthermore, the upper connecting beam 1 and the lower connecting plate 3 can be retracted by the second set of pedals 301 and the first set of pedals 101, reducing the length of the upper connecting beam 1 and the lower connecting plate 3. In the folded state, the retraction is minimized, so that the collision volume is reduced and the safety of the van is improved during driving.

[0031] To address the issue of existing step assemblies causing inconvenience in adjusting the step structure position during actual use, thus affecting the vehicle's safety, please refer to... Figure 1 - Figure 3 This embodiment provides the following technical solution:

[0032] The lower end of the upper connecting beam 1 is welded to a bottom adjustment frame 103. A limit block is installed inside the bottom adjustment frame 103. A first connecting arm 201 is installed at one end of the bottom adjustment frame 103, and a second connecting arm 202 is installed at the other end of the folding frame 2. The angular position of the upper connecting beam 1 and the lower connecting plate 3 is maintained by the limit block.

[0033] The upper ends of the first connecting arm 201 and the second connecting arm 202 are both equipped with a third telescopic shaft 206. The upper ends of the first connecting arm 201 and the second connecting arm 202 are rotatably connected to the bottom adjusting frame 103 through the third telescopic shaft 206. The lower end of the first connecting arm 201 is equipped with a first telescopic shaft 203. The first connecting arm 201 is rotatably connected to the upper end of the folding frame 2 through the first telescopic shaft 203. The lower end of the second connecting arm 202 is equipped with a second telescopic shaft 204. The second connecting arm 202 is rotatably connected to the middle of the folding frame 2 through the second telescopic shaft 204. The folding frame 2 moves through the first connecting arm 201 and the second connecting arm 202 to extend the lower connecting plate 3 and the second set of pedals 301. After extension, the position of the second set of pedals 301 can be lowered, making it convenient for passengers to get on and off the vehicle. The structure is simple and easy to use.

[0034] Specifically, when passengers are getting on or off the vehicle, the step assembly is activated by pressing down the lower connecting plate 3, which in turn moves the folding frame 2. The folding frame 2 moves via the first connecting arm 201 and the second connecting arm 202, extending the lower connecting plate 3 and the second set of pedals 301. After extension, the position of the second set of pedals 301 can be lowered, making it easier for passengers to get on and off the vehicle. The structure is simple and easy to use. The limiting block maintains the angular position of the upper connecting beam 1 and the lower connecting plate 3, making the positional stability of the step assembly better.

[0035] Working principle: One side of the upper connecting beam 1 is fixed by the connecting frame 102 to facilitate retraction. The upper connecting beam 1 and the lower connecting plate 3 can be retracted by the second set of pedals 301 and the first set of pedals 101, reducing their length. In the folded state, the retraction is minimized to reduce the collision volume and improve safety of the van during travel. When passengers are getting on or off, the lower connecting plate 3 is pressed down, which drives the folding frame 2 to move. The folding frame 2 moves through the first connecting arm 201 and the second connecting arm 202, extending the lower connecting plate 3 and the second set of pedals 301. After extension, the position of the second set of pedals 301 can be lowered, facilitating passengers to get on and off. The structure is simple and easy to use. The angular position of the upper connecting beam 1 and the lower connecting plate 3 is maintained by the limiting block, making the positional stability of the step assembly better.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A folding step frame crossbeam assembly, comprising two upper connecting crossbeams (1) and two lower connecting plates (3), characterized in that, The two lower connecting plates (3) are located below the two upper connecting beams (1), and a folding frame (2) is installed between the two lower connecting plates (3) and the two upper connecting beams (1); A first set of pedals (101) is provided between the two upper connecting crossbeams (1), and a second set of pedals (301) is provided between the two lower connecting plates (3).

2. The folding step frame crossbeam assembly according to claim 1, characterized in that: A connecting frame (102) is provided on the outer side of the upper connecting beam (1), and the connecting frame (102) is used to fix the upper connecting beam (1) and the body frame of the van.

3. The folding step frame crossbeam assembly according to claim 1, characterized in that: The first set of pedals (101) has an integrally formed sliding groove inside. One end of each of the two upper connecting crossbeams (1) extends into the first set of pedals (101) and is slidably connected to the first set of pedals (101) through the sliding groove.

4. A folding step frame crossbeam assembly according to claim 3, characterized in that: The second set of pedals (301) has an integrally formed sliding groove inside. One end of each of the two lower connecting plates (3) extends into the interior of the second set of pedals (301) and is slidably connected to the second set of pedals (301) through the sliding groove.

5. A folding step frame crossbeam assembly according to claim 4, characterized in that: The lower end of the upper connecting beam (1) is welded to a bottom adjustment frame (103). The bottom adjustment frame (103) is equipped with a limit block. One end of the bottom adjustment frame (103) is equipped with a first connecting arm (201), and the other end of the folding frame (2) is equipped with a second connecting arm (202).

6. A folding step frame crossbeam assembly according to claim 5, characterized in that: The upper ends of the first connecting arm (201) and the second connecting arm (202) are each equipped with a third telescopic shaft (206), and the upper ends of the first connecting arm (201) and the second connecting arm (202) are rotatably connected to the bottom adjustment frame (103) through the third telescopic shaft (206).

7. A folding step frame crossbeam assembly according to claim 6, characterized in that: The lower end of the first connecting arm (201) is equipped with a first telescopic shaft (203), and the first connecting arm (201) is rotatably connected to the upper end of the folding frame (2) through the first telescopic shaft (203).

8. A folding step frame crossbeam assembly according to claim 7, characterized in that: The lower end of the second connecting arm (202) is equipped with a second telescopic shaft (204), and the second connecting arm (202) is rotatably connected to the folding frame (2) through the second telescopic shaft (204).

9. A folding step frame crossbeam assembly according to claim 8, characterized in that: An adjusting sleeve (205) is installed in the middle of the first telescopic shaft (203), the second telescopic shaft (204) and the third telescopic shaft (206), and the first telescopic shaft (203), the second telescopic shaft (204) and the third telescopic shaft (206) all extend into the adjusting sleeve (205) and slide in connection with the adjusting sleeve (205).

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