Boarding ladder capable of being automatically unfolded

Abstract

The invention relates to the technical field of boarding ladders, and discloses a boarding ladder capable of being automatically unfolded, which comprises a ladder body part and a pedal part, the ladder body part comprises a ladder body, and the ladder body is connected with an external ship body through an electric rotating seat arranged at the top of the ladder body; the pedal part comprises pedal bodies, the two ladder bodies are symmetrically distributed with the pedal bodies as the center, and the ends of the pedal bodies are rotationally connected with the interiors of the ladder bodies through rotating shafts; wherein a plurality of groups of protection plates are mounted in the pedal body, and an adjusting piece for adjusting the rotation angle of the pedal body is arranged in the ladder body. The boarding ladder capable of being automatically unfolded can effectively solve the problems that in the prior art, pedals of a boarding ladder are likely to become wet and slippery in rainy and snowy days, the slipping risk of a user is increased, and particularly under the condition that the pedals are frozen, ice and snow on the surfaces of the pedals are stacked, and the materials of the pedals are not appropriate, the slipping risk is further increased.

Description

Technical Field

[0001] The invention relates to the technical field of boarding ladders, and in particular to an automatically deployable boarding ladder. Background Art

[0002] The design of the boarding ladder emphasizes safety. For example, the marine access ladder can be adjusted with the tide and the changes of the ship. It is made of marine grade aluminum and equipped with non-slip pedals, which can automatically adjust the level to provide safety protection in various weather conditions.

[0003] In adverse weather conditions, such as rain and snow, the steps of the boarding ladder can easily become slippery, increasing the risk of slipping for users, especially when the steps are frozen. The accumulation of ice and snow on the step surface and inappropriate step materials may further aggravate this problem. In general, the main drawback of boarding ladders in rainy and snowy weather is that they are less safe, including slippery steps and insufficient maintenance. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the above-mentioned shortcomings of the prior art, the present invention provides an automatically deployable boarding ladder, which can effectively solve the problem in the prior art that the pedals of the boarding ladder easily become slippery in rainy and snowy days, increasing the risk of slipping for users, especially when the pedals are frozen. The accumulation of ice and snow on the pedal surface and inappropriate pedal materials may further aggravate this problem.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides an automatically deployable boarding ladder, comprising a ladder body portion and a pedal portion; The ladder body part comprises a ladder body body, and the ladder body body is connected to the external hull through an electric rotating seat arranged on the top thereof; The pedal part includes a pedal body, the ladder body is provided with two pedal bodies and are symmetrically distributed with the pedal body as the center, and the end of the pedal body is rotatably connected with the inside of the ladder body through a rotating shaft; Among them, several groups of protective plates are installed inside the pedal body to prevent the sole of the foot from sliding; Wherein, an adjusting member which can be used to adjust the rotation angle of the pedal body is arranged inside the ladder body.

[0006] Furthermore, the interior of the ladder body adopts a hollow design, the adjusting member includes an electric telescopic rod, and the outer surface of the electric telescopic rod is detachably installed inside the ladder body, and the output end of the electric telescopic rod is fixedly connected to a toothed plate that slides with the internal slide groove of the ladder body.

[0007] Furthermore, a gear meshing with teeth of the toothed plate is fixedly connected to the end of the pedal body via a rotating shaft, and the gear is located in a cavity inside the ladder body.

[0008] Furthermore, a lifting groove and a sliding groove are respectively opened inside the pedal body, the end face of the protective plate is in contact with the inner wall of the lifting groove, the end face of the protective plate is provided with an ear block that slides with the inner wall of the sliding groove, and the bottom of the inner wall of the sliding groove is provided with a strong spring connected to the lower surface of the ear block.

[0009] Furthermore, there are two groups of protective plates which are symmetrically distributed up and down with the pedal body as the center. In the initial state, the upper surface of the protective plate is lower than the upper surface of the pedal body, and the end surface of the pedal body is provided with a drainage hole connected to the inside of the lifting groove.

[0010] Furthermore, a limiting cone block is fixedly connected to the inner wall of the lifting groove, and a conical hole that fits the conical surface of the limiting cone block is opened on the side of the protective plate close to the drainage hole, and the height between the lower surface of the protective plate and the plane of the limiting cone block is less than the height of the protective plate.

[0011] Furthermore, an ice-breaking groove connected to the inside of the cone hole is provided on the side of the protective plate away from the limiting cone block. The ice-breaking groove is slidably connected to the ice-breaking plate via a cone rod arranged on its inner wall. In the initial state, the cone surface of the cone rod does not contact the inside of the ice-breaking plate.

[0012] Furthermore, the protective plate adopts a magnetic design, the ice-breaking plate and the protective plate are magnetically attracted to each other, and the upper and lower groups of protective plates are magnetically connected.

[0013] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with a pedal part. When the sole of the boarder is placed on the upper surface of the protective plate of the pedal part, the sole of the foot will generate a downward force on the protective plate, driving the protective plate contacted by the sole of the foot to slide downward synchronously. The protective plate slides downward along the inner wall of the lifting groove, and the ear block slides downward along the inner wall of the sliding groove. The strong spring is compressed and elastically deformed, so that the downward-moving protective plate and the surrounding protective plates that have not moved downward form a "depressed groove". This "depressed groove" is used to protect the sole of the boarder's foot to prevent the boarder from slipping due to wet soles. At the same time, the downward-moving protective plate and another group of protective plates below interact with each other magnetically, driving the other group of protective plates below to move upward for a short distance. Repeatedly stepping on the upper protective plate can realize the reciprocating vibration of the lower protective plate, accelerating the rapid separation of snow and ice on the surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention.

[0015] Figure 2 It is a side view of an embodiment of the present invention.

[0016] Figure 3 It is a structural schematic diagram of a three-dimensional partial cross-section of a ladder body according to an embodiment of the present invention.

[0017] Figure 4 It is a schematic structural diagram of the pedal body and the protective plate being three-dimensionally separated according to an embodiment of the present invention.

[0018] Figure 5 It is a schematic structural diagram of a front cross-section of a pedal body according to an embodiment of the present invention.

[0019] Figure 6 It is a three-dimensional structural schematic diagram of the protective plate, ear block, strong spring and limiting cone block according to an embodiment of the present invention.

[0020] Figure 7 It is a schematic structural diagram of the three-dimensional separation of the icebreaker plate, the protection plate and the limiting cone block according to an embodiment of the present invention.

[0021] The numbers in the figure represent: 1. Ladder body; 11. Ladder body; 12. Adjustment part; 13. Electric rotating seat; 121. Electric telescopic rod; 122. Tooth plate; 123. Gear; 2. Pedal part; 21. Pedal body; 211. Lifting groove; 212. Sliding groove; 213. Drainage hole; 214. Limiting cone block; 22. Protective plate; 221. Ear block; 222. Power spring; 223. Conical hole; 224. Ice-breaking groove; 225. Conical rod; 226. Ice-breaking plate. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the embodiments. Example

[0023] See also Figure 1-Figure 7 The present invention provides a technical solution: an automatically deployable boarding ladder, comprising a ladder body portion 1 and a pedal portion 2.

[0024] The ladder body 1 comprises a ladder body 11, and the ladder body 11 is connected to the external hull through an electric rotating seat 13 arranged on the top thereof; The pedal part 2 includes a pedal body 21. The ladder body 11 is provided with two pedal bodies 21 and are symmetrically distributed around the pedal body 21. The end of the pedal body 21 is rotatably connected to the inside of the ladder body 11 through a rotating shaft. Among them, a plurality of sets of protective plates 22 are installed inside the pedal body 21 to prevent the sole from sliding; An adjusting member 12 for adjusting the rotation angle of the step body 21 is disposed inside the ladder body 11 .

[0025] The interior of the ladder body 11 is hollow, the adjusting member 12 includes an electric telescopic rod 121, and the outer surface of the electric telescopic rod 121 is detachably mounted inside the ladder body 11, and the output end of the electric telescopic rod 121 is fixedly connected to a toothed plate 122 that slides with the internal slide groove of the ladder body 11.

[0026] A gear 123 meshing with the teeth of the toothed plate 122 is fixedly connected to the end of the step body 21 via a rotating shaft, and the gear 123 is located in a cavity inside the ladder body 11 .

[0027] A lifting groove 211 and a sliding groove 212 are respectively provided inside the pedal body 21, and the end face of the protective plate 22 is in contact with the inner wall of the lifting groove 211. The end face of the protective plate 22 is provided with an ear block 221 that slides with the inner wall of the sliding groove 212, and the bottom of the inner wall of the sliding groove 212 is provided with a strong spring 222 connected to the lower surface of the ear block 221.

[0028] There are two groups of protective plates 22 and they are symmetrically distributed up and down with the pedal body 21 as the center. In the initial state, the upper surface of the protective plate 22 is lower than the upper surface of the pedal body 21. The end surface of the pedal body 21 is provided with a drainage hole 213 connected to the inside of the lifting groove 211.

[0029] The inner wall of the lifting groove 211 is fixedly connected to the limiting cone block 214, and the protective plate 22 is provided with a cone hole 223 that fits the cone surface of the limiting cone block 214 on the side close to the drainage hole 213. The height between the lower surface of the protective plate 22 and the plane of the limiting cone block 214 is less than the height of the protective plate 22.

[0030] An ice-breaking groove 224 connected to the inside of the cone hole 223 is provided on the side of the protective plate 22 away from the limiting cone block 214. The ice-breaking groove 224 is slidably connected to the ice-breaking plate 226 through a cone rod 225 arranged on its inner wall. In the initial state, the cone surface of the cone rod 225 does not contact the inside of the ice-breaking plate 226.

[0031] The protective plate 22 is designed to be magnetic, the ice-breaking plate 226 and the protective plate 22 are magnetically attracted, and the upper and lower sets of protective plates 22 are magnetically connected.

[0032] refer to Figure 1-Figure 7 ,In adverse weather conditions, such as rain and snow, the steps of the boarding ladder are prone to become slippery, increasing the risk of slipping for users, especially when the steps are icy. The accumulation of ice and snow on the step surface and inappropriate step materials may further aggravate this problem. In general, the main drawback of the boarding ladder in rainy and snowy weather is that it is less safe, including slippery steps and insufficient maintenance; In order to overcome the above-mentioned defects, the present invention designs an automatically deployable boarding ladder.

[0033] Specifically, when the ladder body 1 and the pedal part 2 need to be unfolded, the external drive system controls the electric rotating seat 13 to drive the ladder body 11, the adjusting member 12 and the synchronous downward rotation. The electric rotating seat 13 can be used to freely adjust the inclination angle of the ladder body 11. At the same time, the pedal part 2 between adjacent ladder bodies 11 can also be rotated to meet the use requirements of the ladder body 11 tilted at different angles, so that the pedal part 2 is always in a horizontal state to prevent the climber from slipping. When the inclination angle of the ladder body 11 is determined, the electric telescopic rod 121 on the adjusting member 12 is started, and its output end drives the tooth plate 122 to slide along the internal slide groove of the ladder body 11. During the sliding process of the tooth plate 122, the teeth of the tooth plate 122 drive the gear 123 to rotate (synchronously on both sides), thereby driving the pedal part 2 to rotate as a whole until the pedal part 2 rotates to a horizontal state. It is worth mentioning that after the use of the ladder body 1 and the pedal part 2, they need to be stored. At this time, the external drive system controls the electric rotating seat 13 to drive the ladder body 11, the adjustment member 12 and the synchronous rotation reset. At the same time, the output end of the electric telescopic rod 121 drives the gear plate 122 to adjust the rotation of the gear 123, so that the outer surface of the pedal part 2 is flush with the ladder body 11, which is convenient for the ladder body 1 and the pedal part 2 to be quickly stored without taking up extra space.

[0034] In the case of frozen pedals, the pedals of traditional boarding ladders easily become slippery, increasing the risk of slipping of users. In contrast, in the present invention, when the soles of the boarder's feet are placed on the upper surface of the protective plate 22 of the pedal part 2, the soles of the feet will exert a downward force on the protective plate 22 (the area of ​​the soles of the feet is much larger than the area of ​​a single protective plate 22), driving the protective plate 22 contacted by the soles of the feet to slide downward synchronously, the protective plate 22 slides downward along the inner wall of the lifting groove 211, the ear block 221 slides downward along the inner wall of the sliding groove 212, and the strong spring 222 is compressed to undergo elastic deformation, so that the downward-moving protective plate 22 and the surrounding protective plates 22 that have not moved downward form a "depression groove" (with a shallow depth). This "depression groove" is used to protect the soles of the boarder's feet and prevent the boarder's soles from slipping due to wet soles. At the same time, taking the upper protective plate 22 as an example, the distance between the lower surface of the protective plate 22 and the plane of the limiting cone block 214 is less than the thickness of the protective plate 22. When the protective plate 22 contacted by the sole of the foot slides downward synchronously, the protective plate 22 that slides downward and the protective plate 22 that does not slide downward will not be completely misaligned, which is used to protect the feet of the boarder.

[0035] In summary, the pedal part 2 of the present invention has the following advantages: Advantage 1: Under severe weather conditions, a large amount of snow will accumulate on the upper surface of the pedal part 2. At this time, the climbers cannot climb the ladder normally. At this time, they only need to start the electric telescopic rod 121, and its output end drives the toothed plate 122 to slide along the internal slide groove of the ladder body 11. The teeth of the toothed plate 122 drive the gear 123 to rotate, thereby driving the pedal part 2 to rotate 180 degrees as a whole. The upper and lower surfaces of the pedal part 2 are switched to provide a clean surface for climbers to use.

[0036] Advantage 2: When ice forms on the upper surface of the pedal portion 2, initially, the upper surface of the protective plate 22 is lower than the upper surface of the pedal body 21, which makes it easy for people climbing up the ladder to quickly identify the stepping area of ​​the protective plate 22. At the same time, the protective plate 22 contacted by the soles of the feet slides downward synchronously, and the downward-moving protective plate 22 forms a "depressed groove" with the surrounding protective plates 22 that have not moved downward, preventing people from slipping due to wet feet.

[0037] Advantage three, when the protective plate 22 moves downward, the conical hole 223 on the lower surface of the protective plate 22 fits with the conical surface of the limiting cone block 214, which can not only limit the downward movement of the protective plate 22, but also the limiting cone block 214 can improve the stability of the downward movement of the protective plate 22.

[0038] Advantage four: due to the magnetic attraction between the icebreaker plate 226 and the protective plate 22, in the initial state, the lower surface of the icebreaker plate 226 is in contact with the inner wall of the icebreaker groove 224, so in the icing state, the icebreaker plate 226 and the icebreaker groove 224 are always in a fitted state (the conical surface of the cone rod 225 does not contact the inside of the icebreaker plate 226), the top of the cone rod 225 is higher than the upper surface of the icebreaker plate 226, and the soles of the boarders drive the icebreaker plate 226 and the protective plate 22 to move downward synchronously until the limiting cone block 214 is stuck in the cone hole 223. As the top of the limiting cone block 214 contacts the lower surface of the ice-breaking plate 226, the ice-breaking plate 226 will maintain its position. At the same time, the soles of the feet are generally made of soft materials. The local deformation of the soles of the feet will continue to exert a downward force on the protective plate 22, causing a "short-distance misalignment" between the protective plate 22 and the ice-breaking plate 226, shattering the ice on the soles of the feet. Combined with the slightly higher top of the cone rod 225, it can further prevent slipping.

[0039] Advantage five: when the sole of the foot does not act on the protective plate 22, the conical surface of the conical rod 225 does not contact the inside of the ice-breaking plate 226, and rainwater on the upper surface of the protective plate 22 can flow through the gap between the two, into the ice-breaking groove 224, into the conical hole 223, into the lifting groove 211, and finally out of the drainage hole 213 (including melted rainwater).

[0040] Advantage six: the upper and lower groups of protective plates 22 are magnetically connected. In the initial state, the two groups do not act on each other. As the soles of the feet act on the protective plates 22, the downwardly moving protective plates 22 and the other group of protective plates 22 below act on each other magnetically, driving the other group of protective plates 22 below to move upward for a short distance. Repeatedly stepping on the upper protective plates 22 can realize the reciprocating vibration of the lower protective plates 22, thereby accelerating the rapid separation of snow and ice on the surface.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatically deployable boarding ladder. It is characterized in that The invention comprises a ladder body (1) and a pedal body (2), wherein the ladder body (1) comprises a ladder body main body (11), and the ladder body main body (11) is connected to the external hull via an electric rotating seat (13) arranged on the top thereof; the pedal body (2) comprises a pedal body (21), the ladder body main body (11) is provided with two pedal bodies (21) which are symmetrically distributed with the pedal body (21) as the center, and the end of the pedal body (21) is rotatably connected to the inside of the ladder body main body (11) via a rotating shaft; Wherein, a plurality of groups of protective plates (22) are installed inside the pedal body (21) to prevent the sole of the foot from sliding; Wherein, an adjusting member (12) which can be used to adjust the rotation angle of the step body (21) is arranged inside the ladder body (11).

2. An automatically deployable boarding ladder according to claim 1, Features: The interior of the ladder body (11) is hollow in design, the adjusting member (12) comprises an electric telescopic rod (121), and the outer surface of the electric telescopic rod (121) is detachably mounted inside the ladder body (11), and the output end of the electric telescopic rod (121) is fixedly connected to a toothed plate (122) that slides in a sliding groove inside the ladder body (11).

3. An automatically deployable boarding ladder according to claim 2, Features: The end of the step body (21) is fixedly connected to a gear (123) meshing with the teeth of the toothed plate (122) via a rotating shaft, and the gear (123) is located in a cavity inside the ladder body (11).

4. The automatically deployable boarding ladder according to claim 1, Features: A lifting groove (211) and a sliding groove (212) are respectively provided inside the pedal body (21); the end surface of the protective plate (22) is in contact with the inner wall of the lifting groove (211); the end surface of the protective plate (22) is provided with an ear block (221) that slides with the inner wall of the sliding groove (212); and the bottom of the inner wall of the sliding groove (212) is provided with a strong spring (222) that is connected to the lower surface of the ear block (221).

5. An automatically deployable boarding ladder according to claim 4, Features: The protective plates (22) are provided in two groups and are symmetrically distributed up and down with the pedal body (21) as the center. In the initial state, the upper surface of the protective plates (22) is lower than the upper surface of the pedal body (21), and the end surface of the pedal body (21) is provided with a drainage hole (213) connected to the interior of the lifting groove (211).

6. An automatically deployable boarding ladder according to claim 5, Features: The inner wall of the lifting groove (211) is fixedly connected to a limiting cone block (214); a cone hole (223) that fits with the cone surface of the limiting cone block (214) is formed on one side of the protective plate (22) close to the drainage hole (213); and the height between the lower surface of the protective plate (22) and the plane of the limiting cone block (214) is less than the height of the protective plate (22).

7. An automatically deployable boarding ladder according to claim 6, Features: An ice-breaking groove (224) communicating with the inside of the cone hole (223) is provided on a side of the protective plate (22) away from the limiting cone block (214); the ice-breaking groove (224) is slidably connected to an ice-breaking plate (226) via a cone rod (225) provided on an inner wall thereof; in an initial state, the cone surface of the cone rod (225) does not contact the inside of the ice-breaking plate (226).

8. An automatically deployable boarding ladder according to claim 7, Features: The protective plate (22) adopts a magnetic design, the ice-breaking plate (226) and the protective plate (22) are magnetically attracted to each other, and the upper and lower groups of protective plates (22) are magnetically connected.

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