Top climbing ladder mechanism

Abstract

A top climbing ladder mechanism is characterized in that a fixed section, a first movable section and a second movable section are arranged, the first movable section and the second movable section are arranged in a foldable mode through a matched first rotating mechanism, the second movable section is arranged between the fixed section and the first movable section in a folded mode, a three-section foldable structure is formed, and the fixed section is of a rectangular frame structure; in the folding state, the length direction does not exceed the outer edge of the first movable section or the second movable section, so that the top climbing ladder occupies a small space after being folded, and the whole space is saved; the fixed bases and the fixed connecting plates are arranged below the frame at intervals, long round holes are symmetrically formed in the two sides of the fixed connecting plates, the top climbing ladder mechanism can be fixedly connected to the shelter body through matched bolts, arc-shaped connecting parts do not need to be additionally arranged in the length direction, the space is reduced, and the structure is simplified.

Description

A ladder mechanism Technical Field

[0001] This utility model belongs to the field of modular hospital technology, and specifically relates to a ladder mechanism for reaching the top. Background Technology

[0002] The structural design of the access ladder is intended to ensure that personnel can safely and conveniently reach the top of the container for maintenance or operation. The access ladder needs to be equipped with appropriate fixing devices to securely install the ladder onto the container and ensure that it will not move due to external forces.

[0003] Utility model announcement CN220226693U discloses a mobile cabin access ladder and a mobile cabin. The key technical points include a mobile cabin access ladder and a mobile cabin. The access ladder comprises a fixed step section, a middle step section, a rear step section, and an auxiliary support frame. The fixed step section is fixedly connected to the main body of the mobile cabin. The middle step section includes a first end and a second end. The first end is hinged to the fixed step section on both sides along its width direction. The second end is hinged to the rear step section on both sides along its width direction. At least one first mounting seat is provided in the middle of the rear step section. The auxiliary support frame is hinged to at least one first mounting seat. Although this mobile cabin access ladder can maintain the overall height of the ladder while keeping the size of the foldable middle and rear step sections small, allowing it to be used in confined spaces, the fixed step section, used for fixed connection to the main body of the mobile cabin, is located on the outside and occupies space. Since the exposed surface of the mobile cabin needs to have stealth capabilities, the access ladder structure cannot meet current requirements.

[0004] Therefore, based on the characteristics of the external structure, without affecting the external stealth performance, the structure of the ramp to the top of the enemy cabin needs to be further improved in order to adapt to the current structure. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the existing technology by providing a ladder mechanism that occupies a small space without affecting the stealth performance outside the cabin.

[0006] To solve the above technical problems, the technical solution adopted by this utility model is as follows:

[0007] A ladder mechanism includes a fixed section, a first movable section and a second movable section. The first movable section and the second movable section are foldable by a first rotating mechanism, and the second movable section is folded between the fixed section and the first movable section.

[0008] The first movable section is positioned above the fixed section, and its end is hinged to the second rotating mechanism which is arranged on the fixed section along the width direction.

[0009] The fixed segment is designed as a rectangular frame structure, and its length in the folded state does not exceed the outer edge of the first or second movable segment.

[0010] Along the length direction, multiple fixed bases for fixing to the main body of the container are also provided at intervals below the frame on both sides of the fixed section. Each fixed base is provided with a fixed connecting plate at the bottom. The fixed connecting plate has oblong holes on both sides and is fastened to the main body of the container by bolts.

[0011] The first movable segment, the second movable segment, and the fixed segment are also equipped with a self-locking mechanism for limiting their folded state.

[0012] Sealant is also provided between the bolt and the elongated hole of the fixing plate.

[0013] Both the first and second movable sections include collapsed ladder walls and collapsed ladders spaced apart between the collapsed ladder walls, and the collapsed ladders and the collapsed ladder walls are magnetically attracted to each other.

[0014] The self-locking mechanism is a quick-release latch structure.

[0015] The first rotating mechanism is connected by a pin.

[0016] The second rotating mechanism is connected by a pin.

[0017] The beneficial effects of this utility model are:

[0018] The ladder mechanism consists of a fixed section, a first movable section, and a second movable section. The first and second movable sections are foldable via a first rotating mechanism, with the second movable section folded between the fixed and first movable sections, forming a three-section foldable structure. The fixed section is a rectangular frame structure, and its length does not exceed the outer edge of the first or second movable section when folded, thus ensuring that the ladder occupies little space after folding and saving overall space. The fixed bases and fixed connecting plates are spaced apart below the frame, and the elongated holes on both sides of the fixed connecting plates allow the ladder mechanism to be securely connected to the main body of the shelter using bolts, eliminating the need for additional arc-shaped connecting parts along the length, reducing space and simplifying the structure. Attached Figure Description

[0019] Figure 1 is a perspective view of this utility model;

[0020] Figure 2 is an assembly diagram of this utility model;

[0021] Figure 3 is a front view of this utility model. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0023] This utility model provides a ladder mechanism for reaching the top, as shown in Figures 1 to 3.

[0024] A ladder mechanism includes a fixed section 1, a first movable section 2, and a second movable section 3. The first movable section 2 and the second movable section 3 are foldable by a first rotating mechanism 4. The second movable section 3 is folded between the fixed section 1 and the first movable section 2, forming a three-section foldable structure.

[0025] The first end of the first movable segment 2 is rotatably connected to the second rotating mechanism 5, which is disposed on the fixed segment 1 along the width direction. After folding, the first movable segment 2 is located above the fixed segment 1 and the second movable segment 3, and is limited in its folded state by the self-locking mechanism 6.

[0026] In this embodiment, both the first rotating mechanism 4 and the second rotating mechanism 5 adopt a pin structure to achieve a rotating connection.

[0027] To reduce installation difficulty, the fixed section 1 is designed as a rectangular frame structure, and its length does not exceed the outer edge of the first movable section 2 or the second movable section 3 when folded, ensuring that the ladder occupies little space after folding, thus saving overall space.

[0028] The fixed base 7 is provided at intervals along the length direction on both sides of the fixed section 1 for fixing to the main body of the container. Each fixed base 7 has a fixed connecting plate 71 at the bottom. The fixed connecting plate 71 has oblong holes on both sides and is fastened to the main body of the container by bolts.

[0029] Sealant is also provided between the bolt and the elongated hole of the fixing connecting plate 71.

[0030] A self-locking mechanism 6 is also provided between the first movable section 2, the second movable section 3 and the fixed section 1. The self-locking mechanism 6 can adopt a quick-lock structure and be limited and fixed by a pin and a bolt lock.

[0031] Both the first movable section 2 and the second movable section 3 include collapsed ladder walls and collapsed ladders spaced apart between the collapsed ladder walls. The collapsed ladders and the collapsed ladder walls are magnetically attracted to each other, which can achieve rapid retraction and extension.

[0032] The working process of the ladder mechanism is as follows:

[0033] When the top of the cabin needs protection or maintenance, rotate the self-locking mechanism to rotate the first movable section 90° from the folded position through the second rotating mechanism. Then, gently pull the first movable section to pull the second movable section down from the fixed section. During the descent, the second movable section rotates 180° through the first rotating mechanism and is in the extended state. Then, drag the first movable section from 90° to 180°, and the operator can start climbing to the top of the cabin from the first movable section.

[0034] After maintenance or repair, gently pull the second movable section to rotate it from 180° to 0° via the first rotating mechanism, ensuring it is tightly fitted against the fixed section. Then, gently lift the first movable section, rotating its lowest point from 180° to 0°, bringing it into contact with the second movable section. Next, gently lift the first movable section again and apply upward force to rotate it along the second rotating mechanism at its lowest point from 180° to 0°, ensuring it is tightly fitted against the second movable section. Finally, rotate the self-locking mechanism to lock the first movable section in place.

[0035] If this patent uses terms such as "first" and "second" to define components, those skilled in the art should know that the use of "first" and "second" is merely for the convenience of describing this utility model and simplifying the description, and the above terms have no special meaning.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0037] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

Claims

1. A ladder mechanism for reaching the top, characterized in that: The device includes a fixed section, a first movable section, and a second movable section. The first and second movable sections are foldable via a first rotating mechanism, with the second movable section folded between the fixed section and the first movable section. The first movable section is positioned above the fixed section, and its end is hinged to the second rotating mechanism located on the fixed section along its width. The fixed section has a rectangular frame structure, and in its folded state, its length does not exceed the outer edge of either the first or second movable section. Multiple fixed bases for fixing to the main body of the container are spaced along the length of the frame on both sides of the fixed section, and each fixed base has a fixed connecting plate at its bottom. The fixed connecting plate has symmetrical elongated holes on both sides and is fastened to the main body of the container by bolts. A self-locking mechanism for limiting the folded state of the first and second movable sections is also provided between the fixed section and the first movable section.

2. The climbing ladder mechanism according to claim 1, characterized in that: Sealant is also provided between the bolt and the elongated hole of the fixing plate.

3. The climbing ladder mechanism according to claim 1, characterized in that: Both the first and second movable sections include collapsed ladder walls and collapsed ladders spaced apart between the collapsed ladder walls, and the collapsed ladders and the collapsed ladder walls are magnetically attracted to each other.

4. A ladder mechanism for reaching the top according to any one of claims 1 to 3, characterized in that: The self-locking mechanism is a quick-release latch structure.

5. The climbing ladder mechanism according to claim 4, characterized in that: The first rotating mechanism is connected by a pin.

6. The climbing ladder mechanism according to claim 4, characterized in that: The second rotating mechanism is connected by a pin.

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