Crawling ladder device and vehicle
By designing a movable connecting rod with the guide structure and limit structure in the ladder device, the problem of shaking and jamming during the opening and closing process is solved, and a smoother opening and closing process is achieved.
Patent Information
- Application Number
- CN202421526281.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-28
AI Technical Summary
During the opening and closing process, the existing ladder device shakes and gaps due to uneven force, resulting in jamming and inconvenient use, which is inconvenient for users.
A ladder device including a ladder base, a ladder body and a connecting assembly is designed. The connecting component forms a movable connection with the ladder base and the ladder body through a movable link. The movable link forms a guide structure and a limit structure. The guide structure guides the relative sliding of the ladder body. The limit structure limits the relative sliding of the ladder body to avoid shaking.
Through the design of the limit structure, the freedom of the ladder body is limited, and the movable connecting rod and the ladder base are avoided, ensuring the smooth opening and closing of the ladder body with respect to the ladder base.
Smart Images
Figure CN222727905U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle technology, and in particular to a ladder climbing device and a vehicle. Background Art
[0002] The ladder is an important and indispensable accessory for the player version of the off-road vehicle. Due to the existence of the lock, the ladder needs to be lifted upwards first and then pulled outwards. In this process, the four-bar linkage mechanism with multiple symmetrical planes formed by the connecting rod, the guard shell and the longitudinal beam is particularly important for the smooth opening and closing of the ladder. The four-bar linkage mechanism with two equal surfaces is the key and prerequisite for smooth opening and closing.
[0003] In the related art, during the unfolding process of the ladder, the four rods of the ladder may shake and have gaps due to uneven force, which may cause the ladder to get stuck during the opening and closing process, making it inconvenient for users to use. Utility Model Content
[0004] The embodiments of the present application provide a ladder device and a vehicle, which improve the smoothness of the ladder device during the opening and closing process, so as to at least partially solve the above-mentioned technical problems.
[0005] In order to achieve the above object, according to a first aspect of the present application, a ladder climbing device is provided, comprising:
[0006] Ladder base for fixing to the vehicle;
[0007] The ladder body is used for users to climb;
[0008] The ladder climbing device also includes:
[0009] A connecting assembly, used to movably connect the ladder body to the ladder base so that the ladder body has at least an extended state and a retracted state relative to the ladder base;
[0010] Wherein, the connection component comprises:
[0011] A movable connecting rod is movably connected to the ladder base and the ladder body respectively;
[0012] The movable connecting rod is formed with a guiding structure and a limiting structure;
[0013] The guide structure extends at least along a first direction to guide the relative sliding of the ladder body with respect to the ladder base;
[0014] The limiting structure at least extends along the second direction to limit the relative sliding of the ladder body with respect to the ladder base.
[0015] Optionally, the movable connecting rod and the ladder base form a rotational connection around a first axis.
[0016] Optionally, the movable link and the ladder body form a rotational connection along the second axis and a sliding connection along the first direction.
[0017] Optionally, the first axis is parallel to the second axis.
[0018] Optionally, the second axis is perpendicular to the first direction and the second direction.
[0019] Optionally, the guide structure is constructed to have a guide groove extending along the first direction.
[0020] Optionally, a groove wall having a body of revolution structure is formed at the end of the guide groove.
[0021] Optionally, the guide groove is a through groove.
[0022] Optionally, the limiting structure is constructed to have a limiting groove extending along the second direction;
[0023] The guide groove is communicated with the limiting groove.
[0024] Optionally, the ladder body has or is connected with:
[0025] The shaft body is at least partially movably arranged in the guide groove and / or the limit groove.
[0026] Optionally, when the ladder body is in an unfolded state relative to the ladder base, the shaft body is embedded in the limiting groove.
[0027] Optionally, the ladder base has or is connected with:
[0028] a first locking member;
[0029] The ladder body has or is connected with:
[0030] The second locking member is used to cooperate with the first locking member to lock the relative position of the ladder body and the ladder base when the ladder body is in the storage state.
[0031] A second aspect of the present application provides a vehicle comprising the ladder climbing device as described above.
[0032] The benefit of the present application lies in that it provides a vehicle that is easy to use by improving the ladder climbing device.
[0033] More specifically, some embodiments of the present application may produce the following specific beneficial effects:
[0034] The movable connecting rod of the connecting assembly is movably connected with the ladder base and the ladder body, respectively, and the movable connecting rod is formed with a guide structure and a limiting structure, the guide structure extends at least along a first direction to guide the relative sliding of the ladder body relative to the ladder base, and the limiting structure extends at least along a second direction to limit the relative sliding of the ladder body relative to the ladder base. Through the above technical scheme, in the process of switching the ladder body between the expanded state and the stored state relative to the ladder base, the limiting structure can play a role in limiting the relative sliding of the ladder body along the guide structure relative to the ladder base, thereby limiting the freedom of the ladder body, avoiding the shaking of the movable connecting rod and the ladder base relative to the ladder base, thereby ensuring the smooth opening and closing of the ladder body relative to the ladder base.
[0035] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.
[0037] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.
[0038] Figure 1 is a structural schematic diagram of a ladder body of a ladder device provided in an exemplary embodiment of the present application being in a storage state relative to a ladder base;
[0039] Figure 2 is a schematic diagram of a trajectory of a ladder body of a ladder climbing device provided in an exemplary embodiment of the present application rotating relative to a ladder base;
[0040] Figure 3 is a schematic diagram of the exploded structure of a ladder climbing device provided in an exemplary embodiment of the present application;
[0041] Figure 4 is an enlarged schematic diagram of the exploded structure of the upper ladder, the lower ladder, the first rotating body and the second rotating body provided in the exemplary embodiment of the present application;
[0042] Figure 5It is a schematic structural diagram of a guide structure and a limit structure of a movable link and a first axis and a second axis provided in an exemplary embodiment of the present application;
[0043] Figure 6 is a schematic diagram of the structure of a movable connecting rod provided in an exemplary embodiment of the present application from a first perspective;
[0044] Figure 7 is a schematic structural diagram of a movable connecting rod provided in an exemplary embodiment of the present application from a second perspective;
[0045] Figure 8 is an enlarged schematic diagram of the structure of the groove wall of the movable connecting rod provided in an exemplary embodiment of the present application;
[0046] Fig. 9 is an enlarged schematic diagram of the structure of the rotating hole of the movable connecting rod provided in the exemplary embodiment of the present application;
[0047] Fig.10 It is a schematic diagram of a hole structure provided on a ladder body in an exemplary embodiment of the present application to cooperate with a shaft body;
[0048] Fig.11 is a schematic structural diagram of a first locking member provided in an exemplary embodiment of the present application as a slot structure with an opening;
[0049] Fig.12 is a schematic diagram of a vehicle provided in an exemplary embodiment of the present application.
[0050] Description of reference numerals:
[0051] 10. Vehicles;
[0052] 100, ladder device; 10a, first axis; 10b, second axis;
[0053] 110. Ladder base;
[0054] 120, ladder body; 121, climbing up the ladder; 122, descending the ladder;
[0055] 130. Connecting components;
[0056] 131, movable connecting rod; 131a, groove wall;
[0057] 1311. guide structure; 1312. limit structure; 1313. mounting arm
[0058] 132, rotating hole;
[0059] 140, shaft; 160, first locking member; 170, first rotating body; 180, second rotating body. DETAILED DESCRIPTION
[0060] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0061] Reference Figures 1 to 10 As shown, for the convenience of introduction, the upper, lower, left, right, front and rear directions are adopted in the corresponding drawings to facilitate the introduction of the relative position relationship between the various parts in the present application, which should not be understood as a limitation on the absolute position.
[0062] Moreover, in the present application, the first direction corresponds to the left-right direction, and the second direction corresponds to the up-down direction; similarly, the first direction here indicates the left-right direction only for the convenience of introducing the specific embodiments of the present application. There is no absolute corresponding relationship between the first direction and the left-right direction. Similarly, there is no absolute corresponding relationship between the second direction and the up-down direction.
[0063] The first direction and the second direction of the present application are only used to express the relative position relationship. They only indicate the approximate orientation rather than the absolute geometric relationship.
[0064] In a first aspect of the present application, a ladder climbing device 100 is provided, referring to Figures 1 to 3 The ladder device 100 includes a ladder base 110, a ladder body 120 and a connecting assembly 130, wherein the ladder base 110 is used to be fixed to the vehicle 10, the ladder body 120 is used for the user to climb, and the connecting assembly 130 is used to movably connect the ladder body 120 to the ladder base 110 so that the ladder body 120 has at least an unfolded state and a stowed state relative to the ladder base 110.
[0065] refer to Figure 3 The ladder body 120 includes an upper ladder 121 and a lower ladder 122, which are rotatably connected. When the ladder body 120 is in a stored state relative to the ladder base 110, the lower ladder 122 overlaps with at least part of the upper ladder 121, that is, the lower ladder 122 is stacked on the upper ladder 121. When the ladder body 120 is in an unfolded state relative to the ladder base 110, the lower ladder 122 rotates relative to the upper ladder 121, thereby unfolding the ladder body 120 to increase the overall length of the lower ladder 122 and the upper ladder 121.
[0066] refer to Figure 4The lower ladder 122 is rotatably connected with the upper ladder 121 by a first rotating body 170 and a second rotating body 180, one end of the first rotating body 170 is connected to the upper ladder 121 by an axis, and the other end is connected to one end of the second rotating body 180 by an axis, and the other end of the second rotating body 180 is connected to the lower ladder 122 by an axis.
[0067] refer to Figures 1 to 6 The connecting assembly 130 includes a movable connecting rod 131, which is movably connected to the ladder base 110 and the ladder body 120 respectively, and the movable connecting rod 131 is formed with a guide structure 1311 and a limiting structure 1312. The guide structure 1311 extends at least along a first direction to guide the relative sliding of the ladder body 120 relative to the ladder base 110, and the limiting structure 1312 extends at least along a second direction to limit the relative sliding of the ladder body 120 relative to the ladder base 110.
[0068] In some embodiments, the storage state is a state in which the ladder body 120 is stored on the ladder base 110. In this state, the ladder body 120 is locked on the ladder base 110 to complete the storage of the ladder body 120, making the ladder device 100 more compact and easy to transport.
[0069] The unfolded state is when the ladder body 120 is unfolded relative to the ladder base 110. In the unfolded state, the user can climb along the ladder body 120, or apply force to the ladder body 120 in the unfolded state, so that the ladder body 120 can slide relative to the ladder base 110 along the guide structure 1311, thereby achieving the effect of switching the ladder body 120 from the unfolded state to the stored state.
[0070] Through the above technical solution, in the process of switching the ladder body 120 between the unfolded state and the retracted state relative to the ladder base 110, the limiting structure 1312 can limit the relative sliding of the ladder body 120 along the guide structure 1311 relative to the ladder base 110, thereby limiting the freedom of the ladder body 120 and preventing the movable connecting rod 131 and the ladder base 110 from shaking relative to the ladder base 110, thereby ensuring smooth opening and closing of the ladder body 120 relative to the ladder base 110.
[0071] A force is applied to the ladder body 120. Under the action of the force, the ladder body 120 can slide along the guide structure 1311 to a position connected to the limiting structure 1312, and then continue to apply rotational force to the ladder body 120, so that the ladder body 120 can rotate relative to the ladder base 110 to switch to the unfolded state. During the rotation of the ladder body 120 relative to the ladder base 110, the limiting structure 1312 can be used to apply a blocking force to the ladder body 120. At this time, the ladder body 120 will not be guided by the guide structure 1311 relative to the ladder base 110, thereby achieving the effect of limiting the relative sliding of the ladder body 120 relative to the ladder base 110.
[0072] In some embodiments, reference Figure 3 and Figure 5 The movable link 131 and the ladder base 110 form a rotation connection around the first axis 10a.
[0073] That is, when a force is applied to the ladder body 120, the ladder body 120 will rotate relative to the ladder base 110 under the action of the force. During the rotation, the movable link 131 rotates relative to the ladder base 110 around the first axis 10a. Since the limiting structure 1312 on the movable link 131 applies a blocking force to the ladder body 120, the ladder body 120 is prevented from sliding relative to the guide structure 1311, thereby further improving the stability of the movable link 131 and the ladder body 120 during the rotation process relative to the ladder base 110 around the first axis 10a.
[0074] In order to make the movable link 131 and the ladder base 110 form a rotational connection around the first axis 10a, the connecting assembly 130 also includes a rotation hole 132 and a rotation shaft connecting the movable link 131 and the ladder base 110. The rotation hole 132 is opened at the end of the movable link 131 opposite to the limiting structure 1312, and the rotation shaft is set on the ladder base 110, and the central axis of the rotation shaft serves as the first axis 10a.
[0075] When the movable link 131 rotates relative to the ladder base 110 , the rotating hole 132 on the movable link 131 can rotate around the rotating axis.
[0076] refer to Figure 7 The end of the movable link 131 has two mounting arms 1313, and at least one rotating hole 132 is opened on each mounting arm 1313. The longitudinal beam on the ladder base 110 is located between the two mounting arms 1313, and mounting holes are opened on the longitudinal beam corresponding to the rotating holes 132. The rotating shaft passes through the rotating hole 132 and the mounting hole in sequence, thereby forming a rotating connection between the movable link 131 and the ladder base 110.
[0077] In some embodiments, a rotation hole 132 is provided on the body of the movable link 131 near the mounting arm 1313 .
[0078] In some embodiments, the movable link 131 and the ladder base 110 may also be hingedly connected.
[0079] In some embodiments, reference Figure 5 The movable link 131 and the ladder body 120 form a rotation connection about the second axis 10b and a sliding connection along the first direction.
[0080] The movable link 131 slides in a first direction along the guide structure 1311 , and after sliding a certain distance along the guide structure 1311 , it is connected to the limiting structure 1312 , and the limiting structure 1312 is used to limit the movable link 131 to move along the guide structure 1311 .
[0081] In some embodiments, the first axis 10 a is arranged parallel to the second axis 10 b , which can further improve the smoothness of the opening and closing process of the ladder body 120 relative to the ladder base 110 .
[0082] In some embodiments, reference Figure 3 The connecting assembly 130 includes four movable links 131, each of which is formed with a guide structure 1311 and a limiting structure 1312. When the ladder body 120 rotates relative to the ladder base 110, the limiting structure 1312 will limit the ladder body 120 from sliding along the guide structure 1311 to limit the ladder body 120 from sliding relative to the ladder base 110.
[0083] In some embodiments, each movable link 131 is connected to the ladder body 120 to form a rotational connection along the second axis 10b and a sliding connection along the first direction, and the first axis 10a is parallel to the second axis 10b, further ensuring that the connection between each movable link 131 and the ladder body 120 and the ladder base 110 is the same, and during the rotation of the ladder body 120 relative to the ladder base 110, all the movable links 131 are arranged in parallel, and the rotation is smoother.
[0084] The limiting structure 1312 of the movable link 131 can limit the sliding of the ladder body 120 relative to the ladder base 110, so the relative positions of the movable link 131, the ladder body 120 and the ladder base 110 remain unchanged. Furthermore, in the process of rotating the ladder body 120 relative to the ladder base 110, it is only necessary to apply a rotational force to the ladder body 120 to keep the relative positions of the ladder body 120 and the movable link 131 unchanged. The user does not need to apply additional force to the ladder body 120 to keep the relative positions of the ladder body 120 and the guide structure 1311 of the movable link 131 unchanged, thereby ensuring the smoothness of opening and closing, reducing the labor intensity of people, and further improving the smoothness of opening and closing.
[0085] In some embodiments, the second axis 10b is arranged perpendicular to the first direction and the second direction, thereby partially solving the technical problem that the user needs to apply additional force to the ladder body 120 in order to keep all the movable links 131 in a constant relative position with the ladder body 120 .
[0086] In some embodiments, reference Figure 8 The guide structure 1311 of the movable link 131 is constructed to have a guide groove extending along the first direction, and the guide groove is used to guide the ladder body 120 to move relative to the ladder base 110.
[0087] In some embodiments, reference Figure 8 A groove wall 131a having a rotating body structure is formed at the end of the guide groove, so that the ladder body 120 can move more smoothly along the guide groove.
[0088] In some embodiments, reference Figure 8 The guide groove is a through groove. By forming the guide groove into a through groove, the limiting structure 1312 can be formed, arranged or installed in the through groove, which is beneficial to the arrangement of the overall structure.
[0089] In some embodiments, reference Figure 8 The limiting structure 1312 is constructed to have a limiting groove extending along the second direction, connecting the guide groove with the limiting groove.
[0090] The limiting structure 1312 is set as a limiting groove to facilitate molding.
[0091] In some embodiments, reference Figure 8 The end of the limiting groove can be formed with a groove wall 131a having a rotating body structure. When the ladder body 120 rotates relative to the ladder base 110, the ladder body 120 forms a surface contact with the limiting groove. At this time, it can avoid excessive concentration of the force between the movable connecting rod 131 and the ladder body 120, effectively extending the service life of the overall structure.
[0092] refer to Figure 8 The limiting groove can be set as a semicircular groove, an arc groove, or a groove of other structures, which at least has a groove wall 131a of a rotating body structure.
[0093] In some embodiments, the limiting structure 1312 can also be set as a combination of an elastic member (not shown in the figure) and a block (not shown in the figure), and the limiting structure 1312 is set in the guide groove. When the ladder body 120 slides along the guide groove to the position of the limiting structure 1312, the block of the limiting structure 1312 contacts the ladder body 120 and continuously squeezes the elastic member. The elastic member has a restoring elastic potential energy, so it will apply a reverse force to the block, so that the block and the ladder body 120 remain in contact. At this time, the relative sliding of the ladder body 120 relative to the ladder base 110 along the guide groove can be limited, and the relative position of the connection between the ladder body 120 and the movable link 131 can be maintained, thereby preventing the movable link 131 from shaking.
[0094] In some embodiments, the ladder body 120 has or is connected to a shaft body 140 , and at least a portion of the shaft body 140 is movably disposed in the through groove and the limiting groove.
[0095] When the ladder body 120 is in a stored state relative to the ladder base 110 , the shaft body 140 is disposed in the through groove; when the ladder body 120 is in an expanded state relative to the ladder base 110 , the shaft body 140 is embedded in the limiting groove.
[0096] When the ladder body 120 switches between the unfolded state and the retracted state, the shaft body 140 switches its position in the limiting groove and the through groove.
[0097] In some examples, the shaft body 140 can slide along the limiting groove into the through groove, or can slide along the through groove into the limiting groove.
[0098] In some embodiments, reference Fig.10 The shaft body 140 is a pin shaft, and the pin shaft is connected to the ladder body 120. The shaft body 140 is set as a pin shaft, which is more common and easy to use.
[0099] Alternatively, the shaft body 140 may also be a cylindrical shaft on the ladder body 120 , and the cylindrical shaft is directly formed on the ladder body 120 to avoid movement between the two, thereby facilitating user operation.
[0100] There is surface contact between the shaft body 140 and the limiting groove. At this time, the force between the shaft body 140 and the limiting groove is the force along the normal direction of the limiting groove. The pressure is transformed from a single direction to multiple directions, and the contact area is increased, reducing the pressure on a single surface, thereby increasing the service life of the ladder device 100.
[0101] In some embodiments, in order to keep the ladder body 120 in the stored state when the ladder body 120 is in the stored state relative to the ladder base 110, the ladder base 110 has or is connected to a first locking member 160, and the ladder body 120 has or is connected to a second locking member, and the second locking member is used to cooperate with the first locking member 160 to lock the relative position of the ladder body 120 and the ladder base 110 when the ladder body 120 is in the stored state, thereby achieving the effect of keeping the ladder body 120 in the stored state.
[0102] In some embodiments, reference Figure 3 and Fig.11 The first locking member 160 is a groove structure with an opening, and the first locking member 160 is formed on the ladder base 110. The second locking member is an axle body 140, and the axle body 140 can be embedded in the groove structure along the opening to keep the ladder body 120 in a storage state relative to the ladder base 110.
[0103] When the second locking member is subjected to a force, it can move out of the slot structure along the opening to unlock the stowed state of the ladder body 120 .
[0104] In some embodiments, the shaft 140 on the ladder body 120 can be equivalent to a second locking member, that is, the ladder body 120 is provided with a shaft 140, which can be used to lock the relative position of the ladder body 120 and the ladder base 110, and can also be used to connect the movable link 131 and the ladder body 120.
[0105] When only one shaft 140 is provided on the ladder body 120, when the ladder body 120 is in a stored state relative to the ladder base 110, the shaft 140 is embedded in the groove structure on the ladder base 110. When the ladder body 120 needs to be switched from the stored state to the deployed state, a force is applied to the shaft 140 of the ladder body 120 that can move out of the groove structure on the ladder base 110. At this time, the shaft 140 moves along the guide groove in a first direction and enters the limit groove. The limit groove is extended along the second direction, thereby limiting the movement of the shaft 140 along the guide groove, thereby enabling the movable connecting rod 131 to maintain its position relative to the ladder body 120.
[0106] This ensures that during the unfolding and folding process, the parallelogram structure formed by the ladder body 120, the movable connecting rod 131 and the ladder base 110 remains consistent, optimizes the structure of the ladder device 100, and ensures the smoothness of the ladder body 120 rotating relative to the ladder base 110.
[0107] An elastic member, such as a spring, may also be provided between the ladder body 120 and the ladder base 110, with the two ends of the spring respectively connected to the ladder body 120 and the ladder base 110. The spring may be used to apply a biasing force between the ladder body 120 and the ladder base 110 to assist the operator in rotating the ladder body 120 relative to the ladder base 110.
[0108] In a second aspect of the present application, a vehicle 10 is provided, comprising the ladder device 100 as described above. Since the vehicle 10 comprises the ladder device 100 as described above, it has all the beneficial effects of the ladder device 100 as described above, which will not be described in detail in the present application.
[0109] When the vehicle 10 of the present application is in use, the ladder device 100 is easy to unfold and store, which effectively reduces the labor intensity of the user, and is smooth to open and close, which is convenient for the user to operate.
[0110] refer to Fig.12 The vehicle 10 in the present application may be a plug-in hybrid vehicle or a new energy vehicle, etc., and the present disclosure does not make any specific limitation on this.
[0111] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0112] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0113] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.
[0114] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application has been described in examples with different focuses on the description of each embodiment, for the parts not described in detail in a certain embodiment, reference can be made to the relevant effective embodiments of other embodiments. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.
Claims
1. A ladder climbing device (100), characterized in that: include: A ladder base (110) for fixing to a vehicle (10); A ladder body (120) for users to climb; The ladder climbing device (100) further comprises: A connection assembly (130) for movably connecting the ladder body (120) to the ladder base (110) so that the ladder body (120) has at least an unfolded state and a stowed state relative to the ladder base (110); Wherein, the connection component (130) comprises: A movable connecting rod (131) is movably connected to the ladder base (110) and the ladder body (120) respectively; The movable connecting rod (131) is formed with a guiding structure (1311) and a limiting structure (1312); The guide structure (1311) extends at least along a first direction to guide the relative sliding of the ladder body (120) relative to the ladder base (110); The limiting structure (1312) extends at least along the second direction to limit the relative sliding of the ladder body (120) relative to the ladder base (110).
2. The ladder climbing device (100) according to claim 1, characterized in that: The movable connecting rod (131) and the ladder base (110) form a rotation connection around a first axis (10a).
3. The ladder climbing device (100) according to claim 2, characterized in that: The movable link (131) and the ladder body (120) form a rotation connection about the second axis (10b) and a sliding connection along the first direction.
4. The ladder climbing device (100) according to claim 3, characterized in that: The first axis (10a) is parallel to the second axis (10b).
5. The ladder climbing device (100) according to claim 4, characterized in that: The second axis (10b) is perpendicular to the first direction and the second direction.
6. The ladder climbing device (100) according to any one of claims 1 to 5, characterized in that: The guide structure (1311) is constructed to have a guide groove extending along the first direction.
7. The ladder climbing device (100) according to claim 6, characterized in that: The end of the guide groove is formed with a groove wall (131a) having a rotating body structure.
8. The ladder climbing device (100) according to claim 6, characterized in that: The guide groove is a through groove.
9. The ladder climbing device (100) according to claim 6, characterized in that: The limiting structure (1312) is constructed to have a limiting groove extending along the second direction; The guide groove is communicated with the limiting groove.
10. The ladder climbing device (100) according to claim 9, characterized in that: The ladder body (120) has or is connected with: The shaft body (140) is at least partially movably arranged in the guide groove and / or the limit groove.
11. The ladder climbing device (100) according to claim 10, characterized in that: When the ladder body (120) is in an unfolded state relative to the ladder base (110), the shaft body (140) is embedded in the limiting groove.
12. The ladder climbing device (100) according to any one of claims 1 to 5, characterized in that: The ladder base (110) has or is connected with: A first locking member (160); The ladder body (120) has or is connected with: A second locking member is used to cooperate with the first locking member (160) to lock the relative position of the ladder body (120) and the ladder base (110) when the ladder body (120) is in a stored state.
13. A vehicle (10), characterized in that: It comprises a ladder climbing device (100) as claimed in any one of claims 1 to 12.