Folding type boarding ladder for vehicle
By designing a vehicle folding boarding ladder, and employing a folding mechanism and locking device, the problem of large space occupation of traditional boarding ladders is solved, realizing convenient folding and unfolding of the boarding ladder, and improving space utilization and operational convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional boarding stairs occupy a lot of space when not in use, hindering equipment layout and personnel movement.
A vehicle folding boarding ladder was designed, which adopts a folding mechanism and a locking device. When not in use, it can be folded and stored on the cabin body and fixed by the locking device. When in use, it unfolds to 125mm and occupies only 35mm of space when stored.
The boarding ladder minimizes space occupation when not in use, ensuring stability, while providing ample space for quick deployment and storage when in use. It is easy to operate and suitable for practical applications.
Smart Images
Figure CN224028904U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of boarding ladder, concretely is a vehicle folding boarding ladder. BACKGROUND
[0002] With the continuous progress of vehicle modification technology, various types of shelters have been widely used in the military and civilian fields. As an important transition device connecting the inside and outside of the cabin, the boarding ladder facilitates the process of personnel getting on and off the cabin body.
[0003] However, the traditional boarding ladder often occupies a large space when not in use, which not only limits the reasonable arrangement of other equipment, but also may cause inconvenience to the normal activities of personnel. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a vehicle folding boarding ladder, which solves the problem of large space occupation and interference with equipment arrangement and personnel activities when the existing boarding ladder is idle.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a vehicle folding boarding ladder, comprising a boarding ladder body, the boarding ladder body comprises two vertical columns arranged transversely and spaced apart, a plurality of crosspieces arranged longitudinally and spaced apart between the two vertical columns, two folding mechanisms arranged longitudinally and spaced apart on the vertical columns, and a locking device arranged between the two folding mechanisms on the vertical column, the locking device and the folding mechanism are located between the corresponding and adjacent two crosspieces; the folding mechanism comprises an L-shaped fixed support on one side of the vertical column, a reinforcing steel plate arranged on the inner side of the vertical part of the L-shaped fixed support, a connecting rod between the vertical column and the reinforcing steel plate, a second connecting mechanism rotatably connected with the vertical column and located above the L-shaped fixed support, a first connecting mechanism connected with the vertical part of the L-shaped fixed support and the reinforcing steel plate, three first cross slot countersunk head screws arranged on the horizontal part of the L-shaped fixed support and used for connecting with the vehicle, the first connecting mechanism is rotatably connected with one end of the connecting rod, and the second connecting mechanism is connected with the other end of the connecting rod.
[0006] Further, the first connecting mechanism comprises an end cap abutting against one side of the connecting rod, a first pin shaft connected with one side of the end cap, a first threaded rod connected with one end of the first pin shaft, and a first self-locking nut threadedly matched with the first threaded rod and abutting against the outer side of the vertical part of the L-shaped fixed support, one end of the first pin shaft penetrates through the connecting rod and is flush with one side of the connecting rod, one end of the first threaded rod penetrates through the reinforcing steel plate and the vertical part of the L-shaped fixed support in sequence and extends to the outer side of the vertical part of the L-shaped fixed support, and the diameter of the first pin shaft is greater than the diameter of the first threaded rod.
[0007] Further, the horizontal part of the L-shaped fixing support is provided with three counterbores matched with the first cross slot countersunk head screws, and the vertical part of the L-shaped fixing support and the reinforcing steel plate are both provided with third through holes matched with the first threaded rods.
[0008] Further, the second connecting mechanism comprises a baffle on the inner side of the column, two flat washers abutting against the two sides of the column, a second pin shaft connected with one side of the baffle, a second threaded rod connected with one end of the second pin shaft, and a second self-locking nut threadedly matched with the second threaded rod and abutting against the other side of the connecting rod, one end of the second pin shaft penetrates through the two flat washers and the column and abuts against one side of the connecting rod, one end of the second threaded rod penetrates through the connecting rod and extends to one side of the connecting rod, and the diameter of the second pin shaft is larger than that of the second threaded rod.
[0009] Further, the column is provided with two fourth through holes longitudinally spaced and matched with the second pin shaft.
[0010] Further, the connecting rod is provided with a first through hole and a second through hole spaced thereon, the first through hole is matched with the first pin shaft, and the second through hole is matched with the second threaded rod.
[0011] Further, the inner side of the middle part of the column is provided with a bolt hole; the locking device comprises an L-shaped bolt seat on the inner side of the column, three second cross slot countersunk head screws on one side of the L-shaped bolt seat and used for being connected with the vehicle, and a spring bolt on the L-shaped bolt seat and insertedly matched with the bolt hole.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] The cabin ladder body can be folded and stably stored on the cabin body through the folding mechanism, the two locking devices and the like, the space occupied by the cabin ladder is minimized when not in use, the stability is ensured, when the cabin ladder is needed to be used, the two locking devices are unlocked, the folding mechanism is immediately responded by pulling away from the cabin, the cabin ladder body is cooperatively unfolded, the unfolded cabin ladder body can protrude from the cabin body by 125mm, sufficient use space is provided for the user, when the cabin ladder is folded and stored, only 35mm of space is occupied, the space utilization rate is shown, the cabin ladder body can be switched between use and storage, the occupied space is reduced, the operation is simple and fast, the cabin ladder body can be quickly put into practical application, and great convenience is provided for the user. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1The utility model discloses a vehicle folding type boarding ladder structure schematic diagram;
[0015] Figure 2 The utility model discloses a vehicle folding type boarding ladder structure schematic diagram; Figure 1 The utility model discloses a vehicle folding type boarding ladder structure schematic diagram;
[0016] Figure 3 The utility model discloses a vehicle folding type boarding ladder structure schematic diagram;
[0017] Figure 4 The utility model discloses a vehicle folding type boarding ladder structure schematic diagram;
[0018] Figure 5 The utility model discloses a vehicle folding type boarding ladder structure schematic diagram;
[0019] Figure 6 The utility model discloses a vehicle folding type boarding ladder structure schematic diagram;
[0020] Figure 7 The utility model discloses a vehicle folding type boarding ladder structure schematic diagram;
[0021] Figure 8 The utility model discloses a vehicle folding type boarding ladder structure schematic diagram
[0022] Figure 9 The utility model discloses a vehicle folding type boarding ladder structure schematic diagram
[0023] Figure 10 The utility model discloses a vehicle folding type boarding ladder structure schematic diagram.
[0024] In the drawing: 1, stand; 2, crosspiece; 3, folding mechanism; 4, L type fixed support; 5, end cover; 6, first pin shaft; 7, first threaded rod; 8, first self-locking nut; 9, reinforcing steel sheet; 10, connecting rod; 11, first cross slot countersunk screw; 12, second pin shaft; 13, second self-locking nut; 14, flat washer; 15, baffle; 16, first perforation; 17, second perforation; 18, counterbore; 19, third perforation; 20, L type bolt seat; 21, spring bolt; 22, bolt hole; 23, fourth perforation; 24, second threaded rod; 25, second cross slot countersunk screw. DETAILED DESCRIPTION
[0025] Please refer to Figures 1-10The utility model provides a vehicle folding gangway, which comprises a gangway body, the gangway body comprises two columns 1 arranged transversely and spaced apart, a plurality of crosspieces 2 arranged longitudinally and spaced apart and welded between the two columns 1, two folding mechanisms 3 arranged longitudinally and spaced apart and arranged on the columns 1, and locking devices arranged on the columns 1 and located between the two folding mechanisms 3, wherein the locking devices and the folding mechanisms 3 are located between corresponding and adjacent two crosspieces 2; the folding mechanism 3 comprises an L-shaped fixed support 4 located on one side of the column 1, a reinforcing steel plate 9 welded on the inner side of the vertical part of the L-shaped fixed support 4, a connecting rod 10 located between the column 1 and the reinforcing steel plate 9, a second connecting mechanism rotatably connected with the column 1 and located above the L-shaped fixed support 4, a first connecting mechanism connected with the vertical part of the L-shaped fixed support 4 and the reinforcing steel plate 9, three first cross slot countersunk head screws 11 arranged on the horizontal part of the L-shaped fixed support 4 and used for connecting with the vehicle, wherein the first connecting mechanism is rotatably connected with one end of the connecting rod 10, and the second connecting mechanism is connected with the other end of the connecting rod 10; the column 1 and the crosspiece 2 are made of a stainless steel square tube; the gangway body is connected to the rear wall of the cabin body through the two locking devices, the four folding mechanisms 3, and the L-shaped fixed support 4 contained in each folding mechanism 3 is installed on the rear wall of the cabin body through the three first cross slot countersunk head screws 11, so that the gangway body and the cabin body are connected; when the gangway is not needed, the folding mechanism 3 comprising the L-shaped fixed support 4, the first connecting mechanism, the second connecting mechanism and the connecting rod 10 cooperates to fold and store the gangway body on the cabin body, and the two locking devices ensure the fixation; on the contrary, when the gangway is needed, the two locking devices are only unlocked, then the gangway body is pulled away from the cabin body, the folding mechanism 3 cooperates again to unfold the gangway body, the unfolded gangway body protrudes from the cabin body by 125 mm, and only occupies a space of 35 mm after being stored, so that the space utilization rate is high, in addition, the gangway body and the components are simple in structure and low in manufacturing cost; the gangway body is folded and stored by means of the folding mechanism 3 and the locking device, so that the gangway body is convenient to unfold and store, the occupied space is reduced, the operation is simple and fast, the gangway body can be quickly applied to practical application, and great convenience is provided for users.
[0026] The first connecting mechanism comprises an end cover 5 abutting against one side of the connecting rod 10, a first pin shaft 6 connected to one side of the end cover 5, a first threaded rod 7 connected to one end of the first pin shaft 6, a first self-locking nut 8 threadedly matched with the first threaded rod 7 and abutting against the outer side of the vertical part of the L-shaped fixed support 4, one end of the first pin shaft 6 penetrating through the connecting rod 10 and flush with one side of the connecting rod 10, one end of the first threaded rod 7 penetrating through the reinforcing steel plate 9 and the vertical part of the L-shaped fixed support 4 in sequence and extending to the outer side of the vertical part of the L-shaped fixed support 4, and the diameter of the first pin shaft 6 being greater than that of the first threaded rod 7; through the cooperation of the end cover 5, the first pin shaft 6, the first threaded rod 7 and the first self-locking nut 8, the connection between the connecting rod 10 and the L-shaped fixed support 4 is realized, and meanwhile, the rotating operation between the connecting rod 10 and the L-shaped fixed support 4 is ensured.
[0027] The horizontal part of the L-shaped fixed support 4 is provided with three counterbores 18 matched with the first cross-slot countersunk head screws 11, and the vertical part of the L-shaped fixed support 4 and the reinforcing steel plate 9 are both provided with third through holes 19 matched with the first threaded rod 7; the provision of the counterbores 18 enables the three first cross-slot countersunk head screws 11 to penetrate through the L-shaped fixed support 4, thereby connecting the L-shaped fixed support 4 with the cabin body.
[0028] The second connecting mechanism comprises a baffle 15 located on the inner side of the stand column 1, two flat washers 14 abutting against the two sides of the stand column 1 respectively, a second pin shaft 12 connected to one side of the baffle 15, a second threaded rod 24 connected to one end of the second pin shaft 12, and a second self-locking nut 13 threadedly matched with the second threaded rod 24 and abutting against the other side of the connecting rod 10; one end of the second pin shaft 12 penetrates through the two flat washers 14 and the stand column 1 and abuts against one side of the connecting rod 10, one end of the second threaded rod 24 penetrates through the connecting rod 10 and extends to one side of the connecting rod 10, and the diameter of the second pin shaft 12 is greater than that of the second threaded rod 24; through the arrangement of the baffle 15, the second pin shaft 12, the second threaded rod 24 and the second self-locking nut 13, the connection between the connecting rod 10 and the stand column 1 is realized, and meanwhile, the rotating operation between the connecting rod 10 and the stand column 1 is ensured.
[0029] The stand column 1 is provided with two fourth through holes 23 longitudinally spaced and matched with the second pin shaft 12; the provision of the fourth through holes 23 aims to facilitate the penetration of the second pin shaft 12 through the stand column 1, thereby realizing the connection between the stand column 1 and the connecting rod 10 through the second pin shaft 12 and realizing the rotating operation between the second pin shaft 12 and the stand column 1.
[0030] The connecting rod 10 is provided with a first through hole 16 and a second through hole 17 spaced apart, the first through hole 16 being matched with the first pin shaft 6, and the second through hole 17 being matched with the second threaded rod 24; the provision of the first through hole 16 and the second through hole 17 respectively facilitates the penetration of the first pin shaft 6 and the second threaded rod 24 through the connecting rod 10, thereby realizing the connection between the components.
[0031] The middle part of the inner side of the column 1 is provided with a bolt hole 22; the locking device comprises an L-shaped bolt seat 20 located on the inner side of the column 1, three second cross slot countersunk head screws 25 provided on one side of the L-shaped bolt seat 20 and used for being connected with the vehicle, a spring bolt 21 connected with the L-shaped bolt seat 20 and matched with the bolt hole 22; after the boarding ladder body is folded and arranged on the cabin body, the spring bolt 21 is controlled to be inserted into the corresponding bolt hole 22, so that the folded boarding ladder body and the cabin body are fixed, and the situation that the boarding ladder body is accidentally unfolded when the cabin body moves is avoided.
[0032] Working principle: when the boarding ladder body is not needed, the folding mechanism 3 comprising the L-shaped fixed support 4, the first connecting mechanism, the second connecting mechanism and the connecting rod 10 cooperates to enable the boarding ladder body to be folded and stored on the cabin body, and the two spring bolts 21 are controlled to be inserted into the corresponding bolt holes 22 respectively, so that the folded boarding ladder body and the cabin body are fixed, on the contrary, when the boarding ladder is needed, the two spring bolts 21 are controlled to be pulled out of the corresponding bolt holes 22 respectively, the unlocking of the boarding ladder body is realized, then the boarding ladder body is pulled away from the cabin body, the folding mechanism 3 cooperates again to unfold the boarding ladder body, the unfolded boarding ladder body protrudes the cabin body by 125mm, and only occupies 35mm of space after being stored, and the space utilization rate is shown, in addition, the boarding ladder body and the components thereof are simple in structure and low in manufacturing cost; the boarding ladder body is provided with the folding mechanism 3 and the locking device, which not only facilitates unfolding and folding, but also reduces the occupied space, is simple and convenient to operate, can be quickly applied to practical application, and provides great convenience for users.
[0033] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A folding boarding ramp for a vehicle comprising a boarding ramp body, characterised in that, The boarding ladder body comprises two transversely spaced two columns (1), a plurality of rungs (2) arranged longitudinally between the two columns (1), two folding mechanisms (3) arranged longitudinally on the columns (1), and a locking device arranged on the columns (1) and between the two folding mechanisms (3). The locking device and the folding mechanism (3) are located between the corresponding and adjacent two rungs (2). The folding mechanism (3) comprises an L-shaped fixed support (4) on one side of the column (1), a reinforcing steel plate (9) arranged on the inner side of the vertical part of the L-shaped fixed support (4), a connecting rod (10) between the column (1) and the reinforcing steel plate (9), a second connecting mechanism rotatably connected with the column (1) and located above the L-shaped fixed support (4), a first connecting mechanism connected with the vertical part of the L-shaped fixed support (4) and the reinforcing steel plate (9), and three first cross slot countersunk head screws (11) arranged on the horizontal part of the L-shaped fixed support (4) and used for connecting with the vehicle. The first connecting mechanism is rotatably connected with one end of the connecting rod (10), and the second connecting mechanism is connected with the other end of the connecting rod (10).
2. A folding boarding ramp for a vehicle as claimed in claim 1 wherein, The first connecting mechanism comprises an end cover (5) abutting one side of the connecting rod (10), a first pin shaft (6) connected with one side of the end cover (5), a first threaded rod (7) connected with one end of the first pin shaft (6), and a first self-locking nut (8) threadedly matched with the first threaded rod (7) and abutting the outer side of the vertical part of the L-shaped fixed support (4). One end of the first pin shaft (6) penetrates through the connecting rod (10) and is flush with one side of the connecting rod (10). One end of the first threaded rod (7) penetrates through the reinforcing steel plate (9) and the vertical part of the L-shaped fixed support (4) in sequence and extends to the outer side of the vertical part of the L-shaped fixed support (4). The diameter of the first pin shaft (6) is greater than the diameter of the first threaded rod (7).
3. A folding boarding ramp for a vehicle as claimed in claim 2 wherein, Three counterbores (18) adapted to the first cross slot countersunk head screws (11) are arranged on the horizontal part of the L-shaped fixed support (4). Third perforations (19) matched with the first threaded rod (7) are arranged on the vertical part of the L-shaped fixed support (4) and the reinforcing steel plate (9).
4. A folding boarding ramp for a vehicle as claimed in claim 1 wherein, The second connecting mechanism comprises a baffle (15) on the inner side of the column (1), two flat washers (14) abutting the two sides of the column (1) respectively, a second pin shaft (12) connected with one side of the baffle (15), a second threaded rod (24) connected with one end of the second pin shaft (12), and a second self-locking nut (13) threadedly matched with the second threaded rod (24) and abutting the other side of the connecting rod (10). One end of the second pin shaft (12) penetrates through the two flat washers (14) and the column (1) and abuts one side of the connecting rod (10). One end of the second threaded rod (24) penetrates through the connecting rod (10) and extends to one side of the connecting rod (10). The diameter of the second pin shaft (12) is greater than the diameter of the second threaded rod (24).
5. A folding boarding ramp for a vehicle as claimed in claim 3 wherein, Two fourth perforations (23) matched with the second pin shaft (12) are arranged longitudinally on the column (1).
6. A folding boarding ramp for a vehicle as claimed in claim 3 wherein, The connecting rod (10) is provided with first perforations (16) and second perforations (17) arranged at intervals, the first perforations (16) are matched with the first pin shaft (6), and the second perforations (17) are matched with the second threaded rod (24).
7. A folding boarding ramp for a vehicle as claimed in claim 1 wherein, The inner side middle part of the stand column (1) is provided with a bolt hole (22); the locking device comprises an L-shaped bolt seat (20) located on the inner side of the stand column (1), three second cross slot countersunk head screws (25) arranged on one side of the L-shaped bolt seat (20) and used for being connected with the vehicle, and a spring bolt (21) arranged on the L-shaped bolt seat (20) and matched with the bolt hole (22) in plug-in mode.