Crawling ladder assembly and vehicle

By designing a detachable rigid ladder assembly on the vehicle, the problem of many moving parts of the pull-pull folding ladder and weak bearing capacity is solved, and the effect of high structural strength and strong bearing capacity is achieved.

CN223148318UActive Publication Date: 2025-07-25ZHEJIANG GEELY HLDG GRP CO LTD +2
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Patent Information

Application Number
CN202422458455.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-07-25
Estimated Expiration
2034-10-11

AI Technical Summary

Technical Problem

In the prior art, there are many pull-pull folding ladder moving parts for vehicles and have weak bearing capacity.

Method used

A ladder assembly is provided, including a storage device and a ladder with a rigid structure, which can switch between storage and use states through removable connectors, reduce moving parts, and increase structural strength and bearing capacity.

Benefits of technology

The ladder assembly has few moving parts, high structural strength and high bearing capacity, which improves the safety performance of the vehicle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of vehicles, and provides a crawling ladder assembly and a vehicle, the crawling ladder assembly is used for the vehicle, the crawling ladder assembly comprises a storage device, a crawling ladder and a connecting piece, the storage device is provided with a storage space and used for being fixedly connected with a carriage of the vehicle, the crawling ladder is a rigid structural part, and the crawling ladder is detachably connected with the storage device through the connecting piece; the ladder stand can be switched between a storage state and a use state, in the storage state, the ladder stand is located in the storage space, in the use state, the ladder stand is connected with the storage device through a connecting piece, the ladder stand and the storage device are relatively fixed, and at least part of the ladder stand is located outside the storage space. According to the scheme, the problems that in the prior art, the number of moving parts of a pull-out type folding ladder for a vehicle is large, and the bearing capacity is weak can be solved.
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Description

Technical Field

[0001] This application relates to the technical field of vehicles, and particularly to a ladder assembly and a vehicle. Background Art

[0002] A truck is a tool for transporting goods. Since the carriage (also known as the cargo box) of a truck is relatively high, a ladder is usually configured for use with the truck to facilitate loading and unloading of goods by climbing up and down the carriage with the help of the ladder.

[0003] In the prior art, the ladder used for a truck is a pull-out folding ladder. When in use, it is pulled out and placed on the ground. After use, the ladder is folded and pushed into the ladder installation space for storage. However, the structure of the pull-out folding ladder is relatively complex. The folding of the pull-out folding ladder is usually achieved through hinges, with many moving parts, high cost, and weak load-bearing capacity. Utility Model Content

[0004] In view of this, this application provides a ladder assembly and a vehicle to solve the problems of many moving parts and weak load-bearing capacity of the pull-out folding ladder used for vehicles in the prior art.

[0005] To achieve the above object, this application provides the following technical solutions:

[0006] A ladder assembly for a vehicle, the ladder assembly comprising:

[0007] A receiver having a storage space, the receiver being used for fixedly connecting with the carriage of the vehicle;

[0008] A ladder, the ladder being a rigid structural member, the ladder being detachably connected to the receiver through a connecting member, and the ladder being capable of switching between a storage state and a use state, wherein:

[0009] In the storage state, the ladder is located within the storage space;

[0010] In the use state, the ladder is connected to the receiver through the connecting member, and the two are relatively fixed, and at least a part of the ladder is located outside the storage space.

[0011] Optionally, the connecting member includes a threaded connecting member.

[0012] Optionally, one of the receiver and the ladder is provided with a first threaded hole and a second threaded hole, and the other is provided with a first mounting hole and a second mounting hole, wherein:

[0013] In the storage state, the threaded connecting member passes through the first mounting hole and is threadedly connected to the first threaded hole to relatively fix the receiver and the ladder;

[0014] In the use state, the threaded connector passes through the second mounting hole and is threadedly connected to the second threaded hole, so that the receiver and the ladder are relatively fixed.

[0015] Optionally, the threaded connector includes a body and a holding portion, the body is provided with a threaded structure, the holding portion is fixedly connected to the body, and the cross-sectional area of the holding portion is larger than the cross-sectional area of the body.

[0016] Optionally, the gripping portion is magnetic, and the gripping portion can be magnetically connected to the vehicle.

[0017] Optionally, the ladder comprises a plurality of legs and a plurality of pedals, the plurality of pedals are parallel and spaced apart, the plurality of legs are parallel and distributed around the plurality of pedals, and any one of the pedals is fixedly connected to all the legs, so that the ladder is a rigid structure;

[0018] The plurality of pedals include a top pedal. In the use state, an edge of the top pedal is supported on an edge of the receiver, and the edge of the top pedal and the edge of the receiver are fixedly connected via the threaded connector.

[0019] Optionally, the storage device has an entrance and exit at one end, the entrance and exit are used for the ladder to enter and exit the storage space, and the inner wall of the storage space forms a slide rail. When the storage device and the ladder are not connected by the connecting piece, the ladder and the storage space can be slidably matched in the direction of the ladder entering and exiting the storage space.

[0020] Optionally, the receiver includes a first slide and a second slide, and the first slide and the second slide are spaced apart in a direction perpendicular to the direction of the ladder entering and exiting the receiver, and the first slide and the second slide have openings on opposite sides so that the first slide and the second slide enclose the storage space.

[0021] A vehicle comprises a carriage and any one of the above ladder assemblies, wherein the receiver is fixedly connected to the carriage.

[0022] Optionally, the vehicle further comprises a supporting structure installed on the bottom of the vehicle compartment, the supporting structure is provided with a cavity, and the receiver is fixedly disposed in the cavity.

[0023] In the embodiment of the present application, the ladder is a rigid structural member with few moving parts, high structural strength and high load-bearing capacity. When the ladder assembly in the embodiment of the present application is used for a vehicle, the receiver is fixedly connected to the carriage. After disassembling the receiver and the ladder and switching the ladder to the use state, the user can climb the ladder to load and unload goods. Moreover, since the ladder in the embodiment of the present application has a relatively high load-bearing capacity, the safety performance when the ladder assembly is applied to a vehicle can be improved. Thus, it can be seen that the embodiment of the present application can solve the problems of the pull-out folding ladder for vehicles in the prior art, which has more moving parts and weaker load-bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0025] Figure 1 FIG. 9 is a schematic structural diagram of the ladder assembly in the storage state provided by the embodiment of the present application;

[0026] Figure 2 FIG. 13 is a schematic structural diagram of the ladder assembly in the use state provided by the embodiment of the present application;

[0027] Figure 3 FIG. 17 is a schematic structural diagram of the vehicle with the ladder assembly in the storage state provided by the embodiment of the present application;

[0028] Figure 4 FIG. 21 is a schematic structural diagram of the vehicle with the ladder assembly in the use state provided by the embodiment of the present application.

[0029] In Figures 1 - 4 :

[0030] 100, receiver; 110, first slideway; 120, second slideway; 130, first threaded hole; 140, second threaded hole;

[0031] 200, ladder; 210, leg; 220, tread; 230, first mounting hole; 240, second mounting hole;

[0032] 300, threaded connecting member, 310, body; 320, gripping portion;

[0033] 400, carriage;

[0034] 500, support structural member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0036] As Figure 1 and Figure 2 shown, the embodiment of the present application provides a ladder assembly for a vehicle, and the vehicle can be a truck, such as a light truck and a pickup truck, or other vehicle models such as an off-road vehicle.

[0037] The ladder assembly includes a storage device 100, a ladder 200 and a connecting member. The storage device 100 has a storage space for accommodating the ladder 200. The storage device 100 is used for fixedly connecting with the carriage 400 of the vehicle.

[0038] The ladder 200 is a rigid structural member. Compared with the pull-out folding ladder in the prior art, the rigid-structured ladder 200 reduces the moving parts and improves the structural strength and load-bearing capacity of the ladder 200. The ladder 200 is detachably connected to the storage device 100 through a connecting member.

[0039] The detachable connection between the ladder 200 and the storage device 100 enables the storage device 100 and the ladder 200 to switch between the connected state and the disassembled state. In the connected state, the ladder 200 is fixedly connected to the storage device 100 through a connecting member, and the two cannot move relative to each other; in the disassembled state, the ladder 200 can move relative to the storage device 100, and the ladder 200 can switch between the storage state and the use state.

[0040] In the storage state, the ladder 200 is located in the storage space to reduce the space occupied by the ladder assembly; in the use state, the ladder 200 is connected to the storage device 100 through a connecting member, the ladder 200 and the storage device 100 are relatively fixed, at least part of the ladder 200 is located outside the storage space, and the bottom of the ladder 200 is used for abutting against the load-bearing base of the vehicle (such as the ground).

[0041] In the embodiment of the present application, the ladder 200 is a rigid structural member with few moving parts, high structural strength and high load-bearing capacity. When the ladder assembly in the embodiment of the present application is used for a vehicle, the receiver 100 and the carriage 400 are fixedly connected. After separating the receiver 100 and the ladder 200, the ladder 200 is switched to the use state, and the user can climb the ladder 200 to load and unload goods. Moreover, since the ladder 200 in the embodiment of the present application has a relatively high load-bearing capacity, the safety performance when the ladder assembly is applied to a vehicle can be improved. Thus, it can be seen that the embodiment of the present application can solve the problems of more moving parts and weaker load-bearing capacity of the pull-out folding ladder used in the prior art for vehicles.

[0042] There are various types of connecting members. In an alternative embodiment, the connecting members may include a snap ring and a hook. One of the snap ring and the hook is fixedly connected to the receiver 100, and the other is fixedly connected to the ladder 200. For example, the snap ring can be fixedly connected to the receiver 100, and the hook can be fixedly connected to the ladder 200. When the snap ring and the hook are hooked together, the receiver 100 and the ladder 200 are connected by the hook and the snap ring, and the two are relatively fixed. When the snap ring and the hook are separated, the receiver 100 and the ladder 200 can move relative to each other to realize the state switching of the ladder 200.

[0043] In another alternative embodiment, the connecting member may include a threaded connecting member 300, such as a quick-release bolt. In this case, the detachable connection between the receiver 100 and the ladder 200 is realized through the threaded connecting member 300, the structure is simple, and after connection, the connection strength between the receiver 100 and the ladder 200 is high, the connection stability is good, and the reliability of the ladder assembly is high.

[0044] One of the receiver 100 and the ladder 200 may be provided with a first threaded hole 130 and a second threaded hole 140, and the other may be provided with a first mounting hole 230 and a second mounting hole 240. For example, the receiver 100 may be provided with a first threaded hole 130 and a second threaded hole 140, and the ladder 200 may be provided with a first mounting hole 230 and a second mounting hole 240. The first mounting hole 230 and the second mounting hole 240 may be threaded holes or through holes.

[0045] In the storage state, the threaded connecting member 300 passes through the first mounting hole 230 and is threadedly connected to the first threaded hole 130 to make the receiver 100 and the ladder 200 relatively fixed. In this case, in the storage state, the receiver 100 and the ladder 200 also remain in a relatively fixed state, preventing the problem that the ladder 200 moves in the receiver 100 and generates noise during the vehicle driving process when the ladder assembly is applied to a vehicle.

[0046] In the use state, the threaded connector 300 passes through the second mounting hole 240 and is threadedly connected to the second threaded hole 140, so that the storage device 100 and the ladder 200 are relatively fixed.

[0047] Of course, in other embodiments, the storage device 100 may be provided with a third threaded hole, and the ladder 200 may be provided with a first mounting hole 230 and a second mounting hole 240. In the storage state, the first mounting hole 230 is opposite to the third threaded hole, and the threaded connector 300 can pass through the first mounting hole 230 and be threadedly engaged with the third threaded hole to realize the connection between the storage device 100 and the ladder 200 and the relative fixation of the two; in the use state, the second mounting hole 240 is opposite to the third threaded hole, and the threaded connector 300 can pass through the second mounting hole 240 and be threadedly engaged with the third threaded hole to realize the connection between the storage device 100 and the ladder 200 and the relative fixation of the two.

[0048] In order to facilitate the disassembly and assembly of the threaded connector 300, in the embodiment of the present application, the threaded connector 300 may include a body 310 and a gripping portion 320. The body 310 is provided with a threaded structure for cooperating with the mounting hole and the threaded hole. The gripping portion 320 is fixedly connected to the body 310, and the cross-sectional area of the gripping portion 320 may be larger than the cross-sectional area of the body 310. In this case, the gripping portion 320 is convenient for the staff to hold the threaded connector 300 and rotate the threaded connector 300 to realize the disassembly and assembly of the threaded connector 300.

[0049] The gripping portion 320 and the body 310 can be fixedly connected by means of clamping, bonding, welding, etc. The threaded connector 300 can also be an integrally formed structural member to realize the fixed connection between the gripping portion 320 and the body 310.

[0050] In a further technical solution, the gripping portion 320 may have magnetism, and the gripping portion 320 may be magnetically attracted to the vehicle. In order to make the gripping portion 320 have magnetism, optionally, the gripping portion 320 may be made of a magnetic material, or the gripping portion 320 may also be embedded with a magnet. It should be noted that the carriage 400 may be made of a material that can be adsorbed by a magnetic member (such as a magnet), or a iron material structure member may be fixed at a position of the carriage 400 adjacent to the storage device 100.

[0051] Of course, in other embodiments, magnetic members that can be magnetically attracted to each other may be respectively embedded at positions of the gripping portion 320 and the carriage 400 adjacent to the storage device 100.

[0052] In the above scheme, the ladder 200 is a rigid structural member. In the embodiment of the present application, the ladder 200 may include a plurality of legs 210 and a plurality of pedals 220. The plurality of pedals 220 may be arranged in parallel and spaced apart. The plurality of legs 210 may be arranged in parallel and around the plurality of pedals 220. Any pedal 220 is fixedly connected to all the legs 210, so that the ladder 200 is a non-deformable rigid structural member. The ladder 200 of this structure is simple in structure, low in cost, and high in strength.

[0053] There are many ways to realize that the ladder 200 is a rigid structural member. For example, the pedal 220 and the leg 210 can be fixedly connected by bolting; the pedal 220 and the leg 210 can also be fixedly connected by welding to make the ladder 200 an integrated structural member; the ladder 200 can also be processed by one-piece molding to make the ladder 200 an integrated structural member.

[0054] The plurality of pedals 220 may include a top pedal, and in a use state, the top pedal has the highest level, and in a use state, the edge of the top pedal is supported on the edge of the receiver 100, and the edge of the top pedal and the edge of the receiver 100 are fixedly connected by a threaded connector 300. In this case, in a use state, the contact area between the receiver 100 and the ladder 200 is large, and the connection stability between the two is good.

[0055] In the embodiment of the present application, at least one end of the storage container 100 has an inlet and outlet, and the inlet and outlet are used for the ladder 200 to enter and exit the storage space. When the storage container 100 and the ladder 200 are in a separated state, the ladder 200 can enter and exit the storage space through the inlet and outlet, and the inner wall of the storage space forms a slide rail. When the storage container 100 and the ladder 200 are not connected by a connector, the ladder 200 and the storage space can slide and cooperate in the direction of the ladder 200 entering and exiting the storage space, and the ladder 200 and the storage space can cooperate in the upper limit position in the direction perpendicular to the direction of the ladder 200 entering and exiting the storage space. This structure can improve the smoothness of the ladder 200 entering and exiting the storage container 100, and reduce the collision between the two during the process of the ladder 200 entering and exiting the storage container 100.

[0056] The storage container 100 may have various structures. In an optional embodiment, the storage container 100 may be a tubular structure with one end open or both ends open.

[0057] In another alternative embodiment, the storage device 100 may include a first slideway 110 and a second slideway 120. The first slideway 110 and the second slideway 120 can be fixedly connected to the carriage 400 by means of bolt connection, welding, etc. The first slideway 110 and the second slideway 120 can be arranged at intervals along the direction perpendicular to the direction in which the ladder 200 enters and exits the storage device 100. And openings are provided on the opposite sides of the first slideway 110 and the second slideway 120, so that the first slideway 110 and the second slideway 120 enclose a storage space. In the storage state, along the direction perpendicular to the direction in which the ladder 200 enters and exits the storage device 100, one end of the ladder 200 is located in the first slideway 110, and the other end is located in the second slideway 120.

[0058] In this case, there is an interval space between the first slideway 110 and the second slideway 120, which can reduce the weight of the storage device 100, is beneficial to the lightweight design of the ladder assembly, and is beneficial to the lightweight design of the vehicle when the ladder assembly is used in the vehicle.

[0059] Based on the above ladder assembly, please refer to Figure 3 and Figure 4 , the embodiment of the present application also provides a vehicle, which includes a carriage 400 and the above-mentioned ladder assembly, and the storage device 100 is fixedly connected to the carriage 400. Since the vehicle has the above-mentioned ladder assembly, the beneficial effects brought by the ladder assembly to the vehicle can be seen in the above content and will not be elaborated here.

[0060] Optionally, the vehicle can be a truck. The storage device 100 can be fixedly connected to the bottom of the carriage 400 through a threaded connector 300. When the ladder 200 is not needed, the threaded connector 300 passes through the first mounting hole 230 and is threadedly connected to the first threaded hole 130 to fix the ladder 200 in the storage space of the storage device 100. When the ladder 200 is needed, the threaded connector 300 is removed, the ladder 200 is pulled out, the ladder 200 is carried at the end of the storage device 100, and the other end of the ladder 200 can be carried on the ground. The threaded connector 300 passes through the second mounting hole 240 and is threadedly connected to the second threaded hole 140. The user can enter and exit the carriage 400 (also called the cargo box) of the truck through the ladder 200.

[0061] Optionally, the vehicle can be a cross-country vehicle. The storage device 100 can be fixedly connected to the top of the carriage 400 through a threaded connector 300. When the ladder 200 is not needed and when the ladder 200 is needed, the state of the ladder assembly is the same as that of the ladder assembly installed on the truck, which will not be elaborated here. The difference is that the user can get on and off the top of the carriage 400 of the cross-country vehicle through the ladder 200, install the goods on the roof rack of the carriage 400 of the cross-country vehicle, or unload the goods on the roof rack of the carriage 400 of the cross-country vehicle.

[0062] In the case where the vehicle is a truck, the vehicle may further include a support structural member 500 installed at the bottom of the carriage 400. The support structural member 500 is provided with a cavity, and the receiver 100 can be fixedly arranged in the cavity. It should be noted that the support structural member 500 is an existing structure of the truck, and the connection relationship and positional relationship between the support structural member 500 and other components of the truck such as the carriage 400 are prior art and will not be elaborated here. In this case, installing the ladder assembly in the existing cavity of the vehicle does not require additional space occupation of the vehicle, which is beneficial to improving the integration degree of the vehicle.

[0063] Of course, in other embodiments, the ladder assembly can also be installed in other areas at the bottom of the carriage 400, that is, the areas where the support structural member 500 is not installed.

[0064] The basic principles of the present application have been described above in combination with specific embodiments. However, it should be pointed out that the advantages, advantages, effects, etc. mentioned in the present application are only examples and not limitations. It cannot be considered that these advantages, advantages, effects, etc. are essential for each embodiment of the present application. In addition, the above disclosed specific details are only for the purpose of illustration and facilitating understanding, rather than limitations. The above details do not limit the present application to necessarily adopt the above specific details to implement.

[0065] The block diagrams of the devices, apparatuses, equipment, and systems involved in the present application are only illustrative examples and do not intend to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open-ended words, meaning "including but not limited to", and can be used interchangeably with each other. The words "or" and "and" used here refer to the word "and / or" and can be used interchangeably with each other, unless the context clearly indicates otherwise. The word "such as" used here refers to the phrase "such as but not limited to" and can be used interchangeably with each other.

[0066] It should also be pointed out that in the devices, equipment, and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of the present application.

[0067] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be very obvious to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

[0068] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only for more clearly elaborating the technical solutions and cannot be used to limit the protection scope of the present application.

[0069] The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the form disclosed herein. Although several example aspects and embodiments have been discussed above, those skilled in the art will recognize some of their variations, modifications, alterations, additions, and subcombinations.

Claims

1. A ladder climbing component, characterized in that, For a vehicle, the ladder assembly includes: A storage device (100) having a storage space and configured to be fixedly connected to a carriage (400) of the vehicle; A ladder (200) which is a rigid structural member and is detachably connected to the storage device (100) by a connecting member, and the ladder (200) is capable of switching between a storage state and a use state, wherein: In the storage state, the ladder (200) is located within the storage space; In the use state, the ladder (200) is connected to the storage device (100) by the connecting member, and the two are relatively fixed, and at least a part of the ladder (200) is located outside the storage space.

2. The ladder climbing assembly according to claim 1, wherein The connecting member includes a threaded connecting member (300).

3. The ladder climbing assembly according to claim 2, characterized in that, One of the storage device (100) and the ladder (200) is provided with a first threaded hole (130) and a second threaded hole (140), and the other is provided with a first mounting hole (230) and a second mounting hole (240), wherein: In the storage state, the threaded connecting member (300) passes through the first mounting hole (230) and is threadedly connected to the first threaded hole (130) to relatively fix the storage device (100) and the ladder (200); In the use state, the threaded connecting member (300) passes through the second mounting hole (240) and is threadedly connected to the second threaded hole (140) to relatively fix the storage device (100) and the ladder (200).

4. The ladder climbing assembly according to claim 2, characterized in that The threaded connecting member (300) includes a body (310) and a gripping portion (320), the body (310) is provided with a threaded structure, the gripping portion (320) is fixedly connected to the body (310), and the cross-sectional area of the gripping portion (320) is larger than the cross-sectional area of the body (310).

5. The ladder climbing assembly according to claim 4, wherein, The gripping portion (320) has magnetism and can be magnetically connected to the vehicle.

6. The ladder climbing assembly according to claim 2, characterized in that, The ladder (200) includes a plurality of legs (210) and a plurality of treads (220), the plurality of treads (220) are parallel and spaced apart, the plurality of legs (210) are parallel and distributed around the plurality of treads (220), and any one of the treads (220) is fixedly connected to all the legs (210) to make the ladder (200) a rigid structural member; The plurality of treads (220) include a top tread, and in the use state, the edge of the top tread is supported on the edge of the storage device (100), and the edge of the top tread and the edge of the storage device (100) are fixedly connected by the threaded connecting member (300).

7. The ladder climbing assembly according to claim 1, wherein, One end of the storage device (100) has an inlet and outlet for the ladder (200) to enter and exit the storage space. The inner wall of the storage space forms a slide rail. When the storage device (100) and the ladder (200) are not connected by the connecting member, the ladder (200) and the storage space are slidably engaged in the direction of the ladder (200) entering and exiting the storage space.

8. The ladder climbing assembly according to claim 7, wherein, The storage device (100) includes a first slideway (110) and a second slideway (120). The first slideway (110) and the second slideway (120) are spaced apart along a direction perpendicular to the direction in which the ladder (200) enters and exits the storage device (100). Both opposite sides of the first slideway (110) and the second slideway (120) have openings so that the first slideway (110) and the second slideway (120) enclose the storage space.

9. A vehicle, characterized in that, It includes a carriage (400) and a ladder assembly as described in any one of claims 1-8, and the storage device (100) is fixedly connected to the carriage (400).

10. The vehicle according to claim 9, wherein, The vehicle further includes a support structure member (500) installed at the bottom of the carriage (400). The support structure member (500) is provided with a cavity, and the storage device (100) is fixedly arranged in the cavity.