Escape ladder

Abstract

The utility model relates to the technical field of escape equipment, in particular to an escape ladder which comprises a first ladder section and a second ladder section detachably and rotatably connected with the first ladder section, and a locking structure is arranged at the rotating joint of the first ladder section and the second ladder section. One end, far away from the second ladder section, of the first ladder section is movably connected with an elastic connecting piece. The marine escape device is convenient to use and suitable for marine escape, and the escape efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of escape equipment, and more specifically, to an escape ladder. Background Art

[0002] On offshore oil production platforms, white-brown rope escape ladders are often used and installed on small oil production platforms at the wellhead. They are used for personnel entry, evacuation, and escape in emergencies, as well as for the evacuation and recovery of personnel in severe weather.

[0003] The traditional way of fixing the white-brown rope escape ladder is to fix one end of the white-brown rope escape ladder to the escape suspension bridge with a shackle, and the other end of the white-brown rope escape ladder is hung on the ship deck, so that people can escape from the ship deck through the white-brown rope escape ladder. During bad weather, such as typhoon days, the white-brown rope escape ladder is easily damaged by strong winds, big waves, seawater corrosion, and sun and rain, which eventually accelerates the aging of the white-brown rope escape ladder or even directly scraps it, greatly shortening its service life, so it is very inconvenient. In order to avoid the situation that the soft ladder is easy to be damaged, some existing small oil production platforms at the wellhead begin to use hard escape ladders. Although the hard escape ladder can withstand bad weather, the connection between the hard escape ladder and the escape suspension bridge is mostly fixed. Due to the influence of waves, relative movement will occur between the ship deck and the escape suspension bridge, causing the hard escape ladder located between the escape suspension bridge and the ship deck to be easily squeezed and deformed, and even damaged, making this kind of hard escape ladder not convenient for rapid escape of personnel. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide an escape ladder which is easy to use, can be suitable for escaping at sea, and improves the escape efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] An escape ladder is provided, comprising a first ladder section and a second ladder section detachably and rotatably connected to the first ladder section, a locking structure is provided at the rotational connection between the first ladder section and the second ladder section, and an elastic connector is movably connected to one end of the first ladder section away from the second ladder section.

[0007] The utility model discloses an escape ladder. A rotatable arrangement between a first ladder section and a second ladder section makes the escape ladder suitable for escaping at sea. A detachable arrangement between the first ladder section and the second ladder section makes it easy to transport the escape ladder. An elastic connecting piece can be used to connect with an escape suspension bridge, and a certain degree of freedom of movement is provided between the escape ladder and the escape suspension bridge, thereby improving the convenience of escape and the efficiency of escape.

[0008] Preferably, the elastic connecting member includes a spring, and also includes a pull ring and a connecting ring respectively connected to two ends of the spring, and the connecting ring is movably connected to the first ladder section.

[0009] Preferably, the connecting ring is a detachable buckle ring. The provision of the detachable buckle ring can facilitate the installation and disassembly of the escape ladder and improve the escape efficiency.

[0010] Preferably, the first stair section includes a first side panel, a second side panel, and a plurality of first tread members detachably connected between the first side panel and the second side panel; the first ends of the first side panel and the second side panel are movably connected to the elastic connecting member, and the second ends of the first side panel and the second side panel are provided with a first rotating connecting part for connecting to the second stair section.

[0011] Preferably, the first ends of the first side plate and the second side plate are both connected to an arc-shaped plate, the arc-shaped plate is provided with a connecting hole, and the elastic connecting member is movably connected to the arc-shaped plate through the connecting hole.

[0012] Preferably, convex shafts are connected to both ends of the first treadle member, a plurality of mounting holes are arranged on the first side plate and the second side plate, and the convex shafts pass through the mounting holes and are connected to the first side plate and the second side plate through fasteners.

[0013] Preferably, the first treadle member is a treadle pedal or a treadle rod.

[0014] Preferably, the second stair section includes a third side panel, a fourth side panel, and a plurality of second tread members detachably connected between the third side panel and the fourth side panel; one end of the third side panel and the fourth side panel is connected to a second rotating connection portion, and the second rotating connection portion is connected to the first rotating connection portion.

[0015] Preferably, the first rotating connection part includes a first connecting ear, and the first connecting ear is provided with a slot; the second rotating connection part includes a second connecting ear adapted to the slot, and the second connecting ear is plugged into the slot, and the first connecting ear and the second connecting ear can be locked by the locking structure.

[0016] Preferably, an anti-slip member is connected to one end of the second stair section away from the first stair section.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model discloses an escape ladder. A rotatable arrangement between a first ladder section and a second ladder section makes the escape ladder suitable for escaping at sea. A detachable arrangement between the first ladder section and the second ladder section makes it easy to transport the escape ladder. An elastic connector can be used to connect with an escape suspension bridge, and enables the escape ladder and the escape suspension bridge to have a certain degree of freedom of movement, thereby improving the convenience of escape. The elastic connector comprises a spring, a pull ring and a connecting ring, the pull ring can be used to connect with the escape suspension bridge, and the connecting ring is used to quickly connect with the first ladder section. The arrangement of the spring, the pull ring and the connecting ring enables the escape ladder to have both a certain degree of elasticity and a certain degree of rotational activity, thereby improving the efficiency of escape. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an escape ladder of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the first ladder section and the elastic connecting member of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the second ladder section of the utility model.

[0022] The illustrations are as follows:

[0023] 100-first step, 110-first side plate, 120-second side plate, 130-first pedal, 140-first rotating connection part, 150-arc plate, 160-convex shaft, 170-fastener, 200-second step, 210-third side plate, 220-fourth side plate, 230-second pedal, 240-second rotating connection part, 300-locking structure, 400-elastic connecting member, 410-pull ring, 420-spring, 430-connecting ring. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0025] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0026] In addition, 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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0030] Example 1

[0031] like Figures 1 to 3 The utility model is shown as a first embodiment of an escape ladder, comprising a first ladder section 100 and a second ladder section 200 detachably and rotatably connected to the first ladder section 100. A locking structure 300 is provided at the rotational connection between the first ladder section 100 and the second ladder section 200. An end of the first ladder section 100 away from the second ladder section 200 is movably connected to an elastic connector 400.

[0032] The rotatable arrangement between the first stair section 100 and the second stair section 200 makes the escape ladder suitable for escape at sea; the detachable arrangement between the first stair section 100 and the second stair section 200 facilitates the transportation of the escape ladder; the arrangement of the elastic connector 400 can be used to connect with the escape suspension bridge, and allows a certain degree of freedom of movement between the escape ladder and the escape suspension bridge, which can improve the convenience of escape and improve the efficiency of escape.

[0033] like Figure 1 and Figure 2 As shown, the elastic connector 400 includes a spring 420, and also includes a pull ring 410 and a connecting ring 430 respectively connected to the two ends of the spring 420, and the connecting ring 430 is movably connected to the first ladder section 100. In this embodiment, the pull ring 410 can be used to connect with the escape suspension bridge, and the ring-shaped setting of the pull ring 410 allows a certain degree of freedom of movement between the escape ladder and the escape suspension bridge; wherein, the pull ring 410 and the escape suspension bridge can be fixedly connected or detachably connected. In this embodiment, the connecting ring 430 is a detachable buckle, and the setting of the detachable buckle can facilitate the installation and disassembly of the escape ladder and improve the escape efficiency. In this embodiment, the spring 420 is a SUS304-WPB spring, which can withstand a maximum tensile force exceeding the weight of an adult, so the elastic connector 400 can be suitable for escape use.

[0034] like Figure 1 and Figure 2As shown, the first stair section 100 includes a first side plate 110 and a second side plate 120 which are arranged parallel to each other, and also includes a plurality of first treading members 130 which are detachably connected between the first side plate 110 and the second side plate 120, and the treading surfaces of the plurality of first treading members 130 are arranged parallel to each other. The first ends of the first side plate 110 and the second side plate 120 are both movably connected with an elastic connecting member 400, and the second ends of the first side plate 110 and the second side plate 120 are both provided with a first rotating connecting portion 140 for connecting with the second stair section 200. Specifically, the first ends of the first side plate 110 and the second side plate 120 are both connected with an arc plate 150, and a connecting hole is provided on the arc plate 150, and a connecting ring 430 is movably connected with the arc plate 150 through the connecting hole. The arrangement of the arc plate 150 and the connecting ring 430 enables a certain degree of freedom of movement between the escape ladder and the escape suspension bridge.

[0035] like Figure 2 As shown, in this embodiment, the first pedal member 130 is a first pedal rod, and both ends of the first pedal rod are connected with a convex shaft 160. A plurality of mounting holes are arranged on the first side plate 110 and the second side plate 120. The convex shafts 160 at both ends of the first pedal rod pass through the mounting holes and are connected to the first side plate 110 and the second side plate 120 through fasteners 170. Specifically, the fastener 170 is a locking nut, and the convex shaft 160 is provided with an external thread, and the locking nut is connected and fixed to the convex shaft 160 through the thread. In order to prevent the first pedal member 130 from slipping, the first pedal rod is also wrapped with an anti-skid pad.

[0036] like Figure 1 and Figure 3 As shown, the second stair section 200 includes a third side plate 210 and a fourth side plate 220 which are arranged parallel to each other, and also includes a plurality of second treading members 230 which are detachably connected between the third side plate 210 and the fourth side plate 220, and the treading surfaces of the plurality of second treading members 230 are arranged parallel to each other. One end of each of the third side plate 210 and the fourth side plate 220 is connected to a second rotating connection part 240, and the second rotating connection part 240 is hinged to the first rotating connection part 140. In this embodiment, the second treading member 230 is a second treading rod, and the connection method of the second treading rod and the third side plate 210 and the fourth side plate 220 is similar to or the same as the connection method of the first treading rod and the first side plate 110 and the second side plate 120.

[0037] like Figure 2 and Figure 3As shown, the first rotating connection part 140 includes a first connecting ear, and the first connecting ear is provided with a slot; the second rotating connection part 240 includes a second connecting ear adapted to the slot, and the second connecting ear is plugged into the slot, and the first connecting ear and the second connecting ear can be locked by a locking structure 300. In this embodiment, the first connecting ear and the second connecting ear are both arc-shaped structures, which can facilitate the rotation between the first ladder section 100 and the second ladder section 200. In this embodiment, the locking structure 300 includes a bolt and a nut, and the bolt passes through the first connecting ear and the second connecting ear and then uses the nut to lock.

[0038] In order to improve the strength of the escape ladder, in this embodiment, the first side plate 110, the second side plate 120, the third side plate 210, and the fourth side plate 220 are all made of aluminum alloy plates.

[0039] When the escape ladder of the utility model is needed for escape, it is first connected to the escape suspension bridge through the pull ring 410, and connected to the first ladder section 100 through the connecting ring 430, and then the locking structure 300 is adjusted according to the actual escape needs, so that the angle between the first ladder section 100 and the second ladder section 200 is at a suitable angle, or the first ladder section 100 and the second ladder section 200 can be rotated to complete the construction of the escape ladder. When the escape ladder is used, it can be disassembled through the connecting ring 430, and the first ladder section 100 and the second ladder section 200 can also be disassembled according to needs, which can be convenient for transportation and storage.

[0040] Example 2

[0041] This embodiment is similar to the embodiment 1, except that in this embodiment, the first tread member 130 and the second tread member 230 are respectively the first pedal and the second pedal, and the first pedals are arranged parallel to each other, and the second pedals are also arranged parallel to each other. In order to prevent slipping, the first pedal and the second pedal are also wrapped with anti-slip pads.

[0042] Example 3

[0043] This embodiment is similar to embodiment 1 or 2, except that in this embodiment, an anti-slip member is connected to the end of the second stair section 200 away from the first stair section 100. In this embodiment, the anti-slip member can be an anti-slip sleeve, which is sleeved on the end of the third side plate 210 and the fourth side plate 220 away from the first stair section 100.

[0044] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0045] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An escape ladder, characterized in that: The invention comprises a first stair section (100) and a second stair section (200) detachably and rotatably connected to the first stair section (100); a locking structure (300) is provided at the rotational connection between the first stair section (100) and the second stair section (200); and an elastic connecting piece (400) is movably connected to one end of the first stair section (100) away from the second stair section (200).

2. The escape ladder according to claim 1, characterized in that: The elastic connecting member (400) comprises a spring (420), and also comprises a pull ring (410) and a connecting ring (430) respectively connected to two ends of the spring (420); the connecting ring (430) is movably connected to the first ladder section (100).

3. The escape ladder according to claim 2, characterized in that: The connecting ring (430) is a detachable buckle ring.

4. The escape ladder according to claim 1, characterized in that: The first stair section (100) comprises a first side plate (110), a second side plate (120), and a plurality of first tread members (130) detachably connected between the first side plate (110) and the second side plate (120); the first ends of the first side plate (110) and the second side plate (120) are both movably connected to the elastic connecting member (400), and the second ends of the first side plate (110) and the second side plate (120) are both provided with a first rotating connecting portion (140) for connecting to the second stair section (200).

5. The escape ladder according to claim 4, characterized in that: The first ends of the first side plate (110) and the second side plate (120) are both connected to an arc-shaped plate (150), a connecting hole is provided on the arc-shaped plate (150), and the elastic connecting member (400) is movably connected to the arc-shaped plate (150) through the connecting hole.

6. The escape ladder according to claim 4, characterized in that: Both ends of the first treadle member (130) are connected to convex shafts (160); a plurality of mounting holes are arranged on the first side plate (110) and the second side plate (120); the convex shaft (160) passes through the mounting holes and is connected to the first side plate (110) and the second side plate (120) via fasteners (170).

7. The escape ladder according to claim 4, characterized in that: The first pedal member (130) is a pedal or a pedal rod.

8. The escape ladder according to claim 4, characterized in that: The second stair section (200) comprises a third side plate (210), a fourth side plate (220), and a plurality of second tread members (230) detachably connected between the third side plate (210) and the fourth side plate (220); one end of each of the third side plate (210) and the fourth side plate (220) is connected to a second rotating connection portion (240), and the second rotating connection portion (240) is connected to the first rotating connection portion (140).

9. The escape ladder according to claim 8, characterized in that: The first rotating connection part (140) comprises a first connecting ear, on which a slot is provided; the second rotating connection part (240) comprises a second connecting ear adapted to the slot, the second connecting ear being plugged into the slot, and the first connecting ear and the second connecting ear can be locked via the locking structure (300).

10. The escape ladder according to any one of claims 1 to 9, characterized in that: An end of the second stair section (200) away from the first stair section (100) is connected to an anti-slip member.

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