WO2019170141A1 - 平台梯 - Google Patents

平台梯 Download PDF

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Publication number
WO2019170141A1
WO2019170141A1 PCT/CN2019/077479 CN2019077479W WO2019170141A1 WO 2019170141 A1 WO2019170141 A1 WO 2019170141A1 CN 2019077479 W CN2019077479 W CN 2019077479W WO 2019170141 A1 WO2019170141 A1 WO 2019170141A1
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WO
WIPO (PCT)
Prior art keywords
ladder
platform
pedal
rod
disposed
Prior art date
Application number
PCT/CN2019/077479
Other languages
English (en)
French (fr)
Inventor
练展鹏
Original Assignee
创智国际五金集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 创智国际五金集团有限公司 filed Critical 创智国际五金集团有限公司
Publication of WO2019170141A1 publication Critical patent/WO2019170141A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/14—Ladders capable of standing by themselves
    • E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/18—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as ladders
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/39—Ladders having platforms; Ladders changeable into platforms
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/16—Platforms on, or for use on, ladders, e.g. liftable or lowerable platforms

Definitions

  • the utility model relates to the field of ladders, in particular to a platform ladder.
  • the tools used by the user may fall off the ladder, or the user may fall off the ladder, posing a safety risk.
  • a platform ladder includes a first ladder, a second ladder, and a platform connected between the first ladder and the second ladder, one end of the second ladder is rotatably connected with the first ladder, and further includes an armrest, a safety net and a fence
  • the armrest is disposed on the first ladder
  • the safety net is disposed between the top of the armrest and the platform, and the fence encloses the safety net.
  • the fence is disposed at an end of the second ladder that is rotationally coupled to the first ladder.
  • the armrest includes a ram and a vertical rod connected to the ram, the vertical rod is disposed on two sides of the first ladder, the top of the vertical rod and the first ladder The top of the top is at the same height, and the jack is connected to the vertical rod and the top of the first ladder, and the jack is suspended with a safety net.
  • a detachable railing is disposed between the two vertical rods near the top of the vertical rod.
  • one end of the railing is connected to a vertical rod by a limit rotary hinge, and the other end of the rail is detachably connected with another vertical rod by a lock, and the limit rotation hinge makes the railing Only turn away from the top of the platform ladder.
  • the limit rotation hinge includes a first limiting portion, a second limiting portion, a limiting rotating shaft, a matching limiting groove and a limiting protrusion, and the first limiting portion
  • the second limiting portion is located on the vertical rail
  • the limiting rotating shaft is located on the first limiting portion
  • the second limiting portion is provided with a shaft hole that cooperates with the limiting rotating shaft, the limiting recess
  • the end of the first limiting portion is away from the top of the platform ladder
  • the limiting protrusion is located at an end of the second limiting portion away from the top of the platform ladder.
  • the lock includes an interfitting first locking portion and a second locking portion on the vertical rod, the first locking portion being an open structure and the opening facing away from the top of the platform ladder,
  • the second locking portion is provided with a groove, and the notch faces away from the vertical rod.
  • the platform includes a pedal, a skirting board, the pedal including a first side, a second side, a third side, and a fourth side, the first side being located between the two sides of the first ladder
  • the third side is located between the two sides of the second ladder, and the second side and the fourth side are both located between the first ladder and the second ladder
  • the skirting board enclosing the second side of the pedal, a third side surface and a fourth side surface, wherein the end portions of the second side surface and the fourth side surface adjacent to the first side surface are rotatably connected to the two side rods of the first ladder, and the end of the pedal near the third side is configured by the second ladder
  • the ankle plate supports, the third side and at least a portion of the second side and the fourth side fix the bottom end of the safety net.
  • the platform further includes a support foot secured to a lower surface of the platform, the support foot being located between the platform and the ankle plate of the second ladder.
  • a support hinge is disposed between the second side and/or the fourth side and the second ladder.
  • the support hinge is rotatably coupled to the second ladder at one end, and the other end is coupled to the second side and/or the fourth side by a mating shaped aperture and a latch, the latch being located at the profiled Inside the hole.
  • an anti-warping device is disposed between the side bars of the second ladder and the corresponding positions of the platform.
  • a rotating device is disposed between the second side surface and the fourth side surface and the two side bars of the first ladder, the rotating device includes a fixed shaft and a connecting piece that cooperate with each other, and the fixed shaft is fixed at On the two side bars of the first ladder, the connecting piece is fixed on the second side surface and the fourth side surface, the connecting piece is rotatably connected with the fixed shaft, and the anti-warping device comprises a pedal lock and an anti-warping function a pedal, the pedal lock is located on the platform, the anti-rolling plate is located on the side bar of the second ladder, and when the platform ladder is in an open state, the anti-rolling plate resists the pedal lock for blocking the rotation of the platform, When folding the platform ladder, the platform is pulled away from the first ladder to rotate the connecting piece relative to the fixed shaft, and the pedal lock moves relative to the anti-rolling plate until it is disengaged from the anti-rolling plate.
  • the bottom end of the side rail of the first ladder and/or the second ladder is provided with a foot rubber having a non-slip pattern.
  • the upper portion of the foot rubber of the second ladder is provided with casters.
  • the two sides of the second ladder are provided with telescopic struts on the outer sides of the rods, and the telescopic struts include a fixed seat, a telescopic sleeve, a support rod, a connecting rod and a support base.
  • the upper end of the telescopic sleeve is pivotally connected to the fixed seat, and the upper end of the telescopic sleeve is fixed on the outer side of the side pole of the second ladder through the fixing seat; the upper part of the support rod is disposed in the telescopic sleeve, and the support rod and the telescopic sleeve A spring clip of the positioning support rod is disposed between the tubes, and the surface of the support rod is axially disposed with a strip for restricting the rotation of the support rod; the lower portion of the support rod is connected to the support base through a connecting rod, the connecting rod and the support The seat is pivotally connected, and the bottom of the support base is provided with a non-slip rubber pad.
  • the platform ladder is provided with handrails, safety nets and fences.
  • the handrail can be held by hand to give the body a rising force, so that the user can easily climb the platform ladder; the top of the platform ladder is arranged around the platform.
  • the safety net prevents the tool from falling; the fence is set outside the safety net to fix the safety net and prevent the user from falling.
  • FIG. 1 is a three-dimensional schematic view of an embodiment of a platform ladder
  • Figure 2 is a right side view of the platform ladder shown in Figure 1;
  • Figure 3 is a left side view of the platform ladder of Figure 1 in a folded state, wherein the safety net is removed;
  • FIG. 4 is a partial structural schematic view of the platform ladder removing safety net and a portion of the fourth side bar shown in FIG. 1;
  • Figure 5 is an enlarged schematic view of the structure of the portion B of Figure 4.
  • Figure 6 is a schematic view of another view of Figure 4.
  • Figure 7 is an enlarged schematic view showing the structure of the portion C of Figure 6;
  • Figure 8 is a left side view of the platform ladder of Figure 1, wherein the safety net is removed;
  • Figure 9 is an enlarged schematic view showing the structure of the portion A in Figure 8.
  • Figure 10 is an enlarged schematic view of the railing lock of Figure 1;
  • Figure 11 is an exploded view of the limit rotary hinge of Figure 1;
  • Figure 12 is another perspective view of Figure 11;
  • Figure 13 is a further perspective view of Figure 11;
  • Figure 14 is a three dimensional perspective view of another embodiment of the platform ladder.
  • a platform ladder includes a first ladder 100, a second ladder 200, and a platform 300 connected between the first ladder 100 and the second ladder 200.
  • the first ladder 100 and the second ladder 200 have the same width, and the first ladder 100 has a longer length than the second ladder 200, and the first ladder 100 and the second ladder 200 constitute an inverted y-type structure.
  • the bottoms of the first ladder 100 and the second ladder 200 are flush, and the top end of the second ladder 200 is rotationally coupled with the first ladder 100 at a distance from the top so that the two ladders can be opened and folded.
  • the platform ladder takes up a small space and is easy to place.
  • the platform 300 is located at the upper middle portion of the platform ladder and below the rotational connection of the two ladders.
  • One end of the platform 300 is rotatably connected to the first ladder 100, and the other end is disposed on the pedal board of the second ladder 200.
  • the platform ladder When the platform ladder is opened, the platform 300 is horizontally placed, and the user can stand on the platform to work.
  • the platform ladder is folded, the platform 300 is rotated relative to the first ladder 100 until the vertical state.
  • the direction of the first ladder 100 is defined as the front surface of the platform ladder, and the direction of the second ladder 200 is the back surface of the platform ladder. The user climbs the first ladder 100 through the front of the platform ladder to climb the platform ladder.
  • the first ladder 100 includes a first side bar 121, a second side bar 122, and a first ankle plate 123.
  • the first side rod 121 is parallel to the second side rod 122.
  • the first pedal board 123 is horizontally disposed between the first side rod 121 and the second side rod 122.
  • the number of the first side rods 121 may be plural, and the first pedal board 123 is low.
  • the second ladder 200 includes a third side bar 221, a fourth side bar 222, and a second pedal plate 223.
  • the third side bar 221 is parallel to the fourth side bar 222, and the second leg
  • the seesaw 223 is horizontally disposed between the third side bar 221 and the fourth side bar 222, and the number may be plural, and the highest position second leg plate 223 supports the back surface of the platform 300.
  • the second pedal board 223 on the back is used less than the first pedal board 123, so in order to avoid waste of resources and save processing cost, the second pedal board 223
  • the number is lower than the number of the first ankle plates 123, that is, the distance between the first ankle plates 123 is smaller than the distance between the second ankle plates 223.
  • the first ladder 100 is provided with an armrest 110 including a jack 111 and a vertical rod 112 connected to the jack 111.
  • the vertical rod 112 is located on the first side rod 121 and the second side rod 122, and the vertical rod 112 has a certain degree of curvature, and the top portion is curved to be horizontal, with the first side rod 121 and the second side rod 122 The top portion is at the same height, and the bottom of the vertical rod 112 is bent and is perpendicular to the first side rod 121 and the second side rod 122, and is fixed to the side rod.
  • the ejector pin 111 is U-shaped, the opening faces the front surface of the platform ladder, is fixed on the top of the first side bar 121 and the second side bar 122, and is at the same height as the top of the vertical bar 112, and the opening of the ejector pin 111 The two ends are respectively connected to the horizontal tops of the two vertical bars 112.
  • the platform ladder is provided with a safety net 400 for preventing the tool from falling, and the outside of the safety net is provided with a fence 210 for fixing the safety net 400.
  • the top of the safety net 400 is fixed to the jack 111, and the safety net 400 can cover all or part of the position of the jack 111.
  • the bottom of the safety net 400 is fixed to the platform 300, and the safety net 400 can enclose the remaining three sides of the platform 300 except for the front side.
  • the top of the third side bar 221 is rotatably connected to the second side bar 122, and the top of the fourth side bar 222 is rotatably connected with the first side bar 121.
  • the horizontal U-shaped fence 210 is disposed at the two connection points, and the fence 210 and the top A vertical hook 116 is disposed between the rods 111. As shown in FIG. 4, the two ends of the vertical hook 116 respectively hook the top rod 111 and the fence 210 to prevent the fence 210 from rotating. As shown in FIG. 1, the fence 210 is located outside the safety net 400, and the safety net 400 is fixed together with the vertical hook 116, which also increases the safety of the workers on the platform.
  • the platform 300 includes a pedal 310, a skirting board 320, and a support foot 330.
  • the pedal 310 is a horizontal plate having a certain thickness, and includes a first side surface 311, a second side surface 312, a third side surface 313, and a fourth side surface 314.
  • An anti-slip pattern is provided on the upper surface of the pedal 310 to prevent the user from slipping and preventing the tool from rolling.
  • the first side 311 is located between the two sides of the first ladder 100 and is located at the front of the platform ladder; the third side 313 is located between the two sides of the second ladder 200, located at the back of the platform ladder; The second side 312 and the fourth side 314 are both located between the first ladder 100 and the second ladder 200, on both sides of the platform ladder.
  • the skirting board 320 encloses the second side 312, the third side 313 and the fourth side 314 of the pedal 310 to prevent the tool from rolling off the platform 300.
  • the skirting board 320 is not disposed at the first side 311, so that a worker climbing from the front of the platform ladder can step on the platform 300. As shown in FIGS.
  • the support leg 330 is located at a lower surface of the pedal 310 near the back surface of the platform ladder, and the lower surface of the support leg 330 is in contact with the upper surface of the second leg plate 223 having the highest position, and
  • the two-leg slab 223 provides support for the support foot 330.
  • the platform 300 is rotatably coupled to the first and second side bars 121, 122, and an anti-warping device is disposed between the second ladder 200 and the second ladder 200.
  • the end of the second side 312 near the front surface of the platform ladder is rotatably coupled to the second side bar 122 via a fixed shaft 317 and a connecting piece 318.
  • the end of the fourth side 314 near the front surface of the platform ladder is connected through the fixed shaft 317 and connected.
  • the piece 318 is rotatably coupled to the first side bar 121.
  • the fixed shaft 317 is fixed on the first and second side bars 121, 122, and the connecting piece 318 is fixed on the second side 312 and the fourth side 314, and the connecting piece 318 is rotatable about the fixed shaft 317, so that the platform 300 can be connected with the connecting piece 318 rotates together about the fixed shaft 317 relative to the first ladder 100 to achieve the purpose of the first ladder 100 and the second ladder 200 being folded, the platform 300 can be rotated with the connecting piece 318 about the rotating shaft 317 until the platform 300 reaches the vertical state. .
  • the platform 300 and the rotating shaft 317 are connected by a connecting piece 318, so that the moment when the platform 300 starts to rotate is not a vertical upward movement, but a little translational space exists to unlock the anti-warping device.
  • the anti-warping device is located between the side bar of the second ladder 200 and the corresponding position of the platform 300.
  • FIG. 4 is a schematic structural view of the safety net 400 and a portion of the fourth side bar 222.
  • FIG. FIG. 6 is a schematic view of another perspective view of FIG. 4, and
  • FIG. 7 is an enlarged schematic view of the structure of portion C of FIG.
  • the anti-warpage device includes an anti-rolling plate 211 and a pedal lock 316 that cooperate with each other.
  • the anti-rolling plate 211 is located on the side bar of the second ladder 200, and includes an anti-rolling plate 2111, an anti-warping shaft 2113, and a slingshot 2112.
  • the anti-warping shaft 2113 is disposed through the anti-rolling plate 2111.
  • the middle portion of the slingshot 2112 is wound around the anti-warping shaft 2113, and the slingshot 2112 is abutted against the anti-warping plate 2111, so that the anti-rolling plate 2111 can be rebounded.
  • the pedal lock 316 is located at a position of the platform 300 corresponding to the side bar of the second ladder 200, and the bottom is hook-shaped, and cooperates with the anti-rolling plate 2111, and the anti-roller plate 2111 presses the pedal lock 316 to prevent it from lifting.
  • the platform 300 When the platform ladder needs to be folded, the platform 300 needs to be pulled away from the first ladder 100, so that the connecting piece 318 is rotated relative to the fixed shaft 317, and the pedal lock 316 is horizontally moved relative to the anti-rolling plate 211 until it is separated from the anti-rolling plate 211.
  • the second ladder 200 is rotationally closed relative to the first ladder 100, and the platform 300 continues to rotate about the fixed shaft 317 until the first ladder 100 and the second ladder 200 are closed, and the platform 300 is vertical to complete the folding of the platform ladder.
  • the second ladder 200 When the platform ladder needs to be opened, the second ladder 200 is rotated relative to the first ladder 100 to a predetermined angle.
  • the platform 300 is rotated to rotate with the connecting piece 318 around the fixed shaft 317 until the pedal lock 316 and the guard
  • the platform 300 is pressed hard, the anti-rolling plate 2111 is elastically rotated, and the pedal lock 316 is pressed to the lower portion of the anti-rolling plate 2111.
  • the anti-rolling plate 2111 is rebounded by the slingshot 2112, and is located at the upper portion of the pedal lock 316, and is pressed.
  • the pedal lock 316 prevents the platform 300 from lifting.
  • a support hinge 315 is disposed between the second side 312 and/or the fourth side 314 and the second ladder 200.
  • the support hinge 315 is rotatably coupled to the highest second pedal plate 223 at one end, and the other end is coupled to the second side 312 and/or the fourth side 314 by a mating shaped aperture 3151 and a latch 3152.
  • the buckle 3152 is located in the shaped hole 3151.
  • the shaped hole 3151 is L-shaped, the long side of the L is parallel to the longitudinal direction of the support hinge 315, and the short side of the L is perpendicular to the longitudinal direction of the support hinge 315.
  • both ends of the supporting hinge 315 are subjected to thrust, and the locking buckle 3152 is located at the short side of the L-shaped shape of the shaped hole 3151, and is not movable, and the platform 300 can be fixed.
  • the support hinge 315 is pushed so that the lock 3152 is located at the long side of the L-shaped shape of the shaped hole 3151, and the lock 3152 can move within the long side of the L-shaped shape of the shaped hole 3151, with the first ladder 100 and the folding of the second ladder 200, the second pedal board 223 moves toward the first ladder 100, the platform 300 rotates about the fixed shaft 317 to a vertical state (as shown in FIG. 3), and the second pedal board 223 is located in the shaped hole.
  • Below 3151 the support hinge 315 is pushed so that the lock 3152 is located at the long side of the L-shaped shape of the shaped hole 3151, and the lock 3152 can move within the long side of the L-shaped shape of the shaped hole 3151, with the first ladder 100 and
  • a detachable railing 113 is disposed between the two vertical rods 112 near the top of the platform ladder to prevent workers from falling off the platform 300.
  • One end of the railing 113 is connected to a vertical rod 112 via a limit rotary hinge 114, and the other end of the rail 113 is detachably connected to the other vertical rod 112 via a lock 115.
  • 11 to FIG. 13 are exploded views of the limit rotary hinge 114 of FIG. 1.
  • the limit rotary hinge 114 includes a first limit portion 1141, a second limit portion 1142, a limit rotation shaft 1143, and a matching recess.
  • the first limiting portion 1141 is located on the vertical rod 112
  • the second limiting portion 1142 is located on the railing 113
  • the limiting rotating shaft 1143 is located on the first limiting portion 1141
  • the The second limiting portion 1142 is provided with a shaft hole that cooperates with the limiting rotating shaft 1143.
  • the limiting recess 1144 is located at an end of the first limiting portion 1141 away from the top of the platform ladder
  • the limiting protrusion 1145 is located at the second end. One end of the limiting portion 1142 away from the top of the platform ladder.
  • the limiting protrusion 1145 is located at an end of the first limiting portion 1141 near the top of the platform ladder, and the limiting groove 1144 is located at an end of the second limiting portion 1142 near the top of the platform ladder.
  • the limit rotary hinge 114 allows the other end of the rail 113 to be rotated only in a direction away from the top of the platform ladder.
  • the railing 113 rotates downwardly about the limit rotary hinge 114 on the vertical plane, and when it is not between the two vertical rods 112, the user can move up and down the platform 300.
  • the lock 115 includes a first locking portion 1151 and a second locking portion 1152.
  • the first locking portion 1151 is open downward so that the rail 113 can only move downward, and the second locking portion 1152 is provided.
  • the second locking portion 1152 can be moved relative to the vertical rod 112.
  • the second locking portion 1152 is only required to be moved, so that the groove of the second locking portion 1152 is away from the lower surface of the rail 113, and the railing 113
  • the rotation hinge 114 can be rotated downwards around the limit.
  • the bottom end of the side bar of the first ladder 100 and/or the second ladder 200 is provided with a non-slip rib rubber 231 to prevent the bottom surface of the platform ladder from being generated on the ground. Sliding to improve the stability of the platform ladder when placed horizontally.
  • the foot rubber 230 of the second ladder 200 is provided with a caster 230. When the platform ladder needs to be moved, the platform ladder only needs to be tilted, so that the caster 230 can be grounded, and the platform ladder can be pulled, saving time and labor.
  • the third side bar 221 and the fourth side bar 222 of the second ladder 200 are respectively provided with telescopic struts, and the telescopic struts include fixed seats connected in sequence. 501, a telescopic sleeve 502, a support rod 504, a connecting rod 505 and a support base 506.
  • the upper end of the telescopic sleeve 502 is pivotally connected to the fixing base 501, and the upper end of the telescopic sleeve 502 is fixed to the second ladder through the fixing base 501.
  • Non-slip rubber pad is disposed at the bottom.
  • the telescopic bracing is tilted open relative to the two sides of the second ladder 200, and the support bracket 506 is adjusted to pass through the telescopic sleeve 502 and the support rod 504 to enhance the stability of the platform ladder and avoid the platform ladder. Rollover occurs during use to ensure the safety of the process.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Abstract

一种平台梯，包括第一爬梯(100)、第二爬梯(200)和连接于第一爬梯(100)和第二爬梯(200)之间的平台(300)，第二爬梯(200)的一端与第一爬梯(100)转动连接，还包括扶手(110)、安全网(400)和围栏(210)，扶手(110)设置在第一爬梯(100)上，安全网(400)设置在扶手(110)的顶部与平台(300)之间，围栏(210)围设安全网(400)。用户攀爬平台梯时可用手握住扶手(110)，可轻松攀爬平台梯；安全网(400)可防止工具掉落；围栏(210)对安全网(400)起固定作用，且可防止用户跌落。

Description

平台梯 技术领域
本实用新型涉及梯子领域，特别是涉及一种平台梯。
背景技术
目前的梯子在使用过程中，用户所使用的工具可能会从梯子上掉落，或者用户也可能从梯子上跌落，存在安全风险。
实用新型内容
基于此，提供一种防工具掉落以及增大用户使用安全性的梯子。
一种平台梯，包括第一爬梯、第二爬梯和连接于第一爬梯和第二爬梯之间的平台，所述第二爬梯的一端与第一爬梯转动连接，还包括扶手、安全网和围栏，所述扶手设置在所述第一爬梯上，所述安全网设置在所述扶手的顶部与平台之间，所述围栏围设所述安全网。
在其中一个实施例中，所述围栏设置在所述第二爬梯的与第一爬梯转动连接的端部。
在其中一个实施例中，所述扶手包括顶杆和与顶杆连接的竖状杆，所述竖状杆设置在第一爬梯的两侧杆上，所述竖状杆的顶部与第一爬梯的顶部在同一高度，所述顶杆同时连接竖状杆和第一爬梯的顶部，所述顶杆挂设安全网。
在其中一个实施例中，所述两竖状杆之间靠近竖状杆顶部处设置可拆卸的栏杆。
在其中一个实施例中，所述栏杆的一端与一竖状杆通过限位旋转铰连接，所述栏杆的另一端与另一竖状杆通过锁可拆卸连接，所述限位旋转铰使得栏杆只能向远离平台梯的顶部的方向转动。
在其中一个实施例中，所述限位旋转铰包括第一限位部、第二限位部、限位转轴、相互配合的限位凹槽和限位凸起，所述第一限位部位于竖状杆上，第二限位部位于栏杆上，限位转轴位于第一限位部上，且第二限位部上设有与限位转轴配合的轴孔，所述限位凹槽位于第一限位部的远离平台梯顶部的一端，所述限位凸起位于第二限位部的远离平台梯顶部的一端。
在其中一个实施例中，所述锁包括位于竖状杆上的相互配合的第一锁定部和第二锁定部，所述第一锁定部为开口结构且开口背向平台梯的顶部，所述第二锁定部设有凹槽，且槽口背向竖状杆。
在其中一个实施例中，所述平台包括踏板、踢脚板，所述踏板包括第一侧面、第二侧面、第三侧面和第四侧面，所述第一侧面位于第一爬梯的两侧杆之间，所述第三侧面位于第二爬 梯的两侧杆之间，所述第二侧面和第四侧面均位于第一爬梯和第二爬梯之间，所述踢脚板围设踏板的第二侧面、第三侧面和第四侧面，所述第二侧面、第四侧面的靠近第一侧面的端部与第一爬梯的两侧杆转动连接，所述踏板的靠近第三侧面的一端由第二爬梯的脚蹬板支撑，所述第三侧面以及至少部分第二侧面、第四侧面固定安全网的底端。
在其中一个实施例中，所述平台还包括固定在平台下表面上的支撑脚，所述支撑脚位于平台和第二爬梯的脚蹬板之间。
在其中一个实施例中，所述第二侧面和/或第四侧面与第二爬梯之间设置支撑铰链。
在其中一个实施例中，所述支撑铰链一端转动连接在第二爬梯上，另一端通过相互配合的异型孔和锁扣连接在第二侧面和/或第四侧面上，所述锁扣位于异型孔内。
在其中一个实施例中，所述第二爬梯的侧杆与平台的对应位置之间设置防翘装置。
在其中一个实施例中，所述第二侧面、第四侧面与第一爬梯的两侧杆之间设置转动装置，所述转动装置包括相互配合的固定轴和连接片，所述固定轴固定在第一爬梯的两侧杆上，所述连接片固定在第二侧面和第四侧面上，所述连接片与所述固定轴转动连接，所述防翘装置包括相互配合的踏板锁和防翘板，所述踏板锁位于平台上，所述防翘板位于第二爬梯的侧杆上，且平台梯处于打开状态时，所述防翘板抵挡所述踏板锁用于阻挡平台发生转动，需折叠平台梯时，朝远离第一爬梯的方向拉动平台，使连接片相对于固定轴转动，踏板锁相对于防翘板移动直至脱离防翘板。
在其中一个实施例中，所述第一爬梯和/或第二爬梯的侧杆的底端设置具有防滑坑纹的脚胶。
在其中一个实施例中，所述第二爬梯的脚胶的上部设置脚轮。
在其中一个实施例中，所述第二爬梯的两侧杆外侧均设置有伸缩斜撑，所述伸缩斜撑包括依次连接的固定座、伸缩套管、支撑杆、连接杆和支撑座，所述伸缩套管上端与固定座枢接，所述伸缩套管上端通过固定座固装在第二爬梯的侧杆外侧；所述支撑杆上部穿设在伸缩套管内，所述支撑杆与伸缩套管之间设置有定位支撑杆的弹片卡扣，所述支撑杆表面沿轴向设置有限制支撑杆自转的卡条；所述支撑杆下部通过连接杆与支撑座连接，所述连接杆与支撑座枢接，所述支撑座底部设置有防滑胶垫。
上述平台梯上设有扶手、安全网和围栏，用户攀爬平台梯时可用手握住扶手，给身体一个上升的力，使用户可轻松攀爬平台梯；平台梯顶部至平台之间周围设置安全网，可防止工具掉落；安全网外设置围栏，对安全网起到固定作用，且可防止用户跌落。
附图说明
图1为平台梯一实施例的三维立体示意图；
图2为图1所示平台梯的右视图；
图3为图1所示平台梯处于折叠状态的左视图，其中安全网被去除；
图4为图1所示平台梯去除安全网和部分第四侧杆的局部结构示意图；
图5为图4中B部结构放大示意图；
图6为图4另一视角示意图；
图7为图6中C部结构放大示意图；
图8为图1所示平台梯的左视图，其中安全网被去除；
图9为图8中A部结构放大示意图；
图10为图1中栏杆锁的放大示意图；
图11为图1中限位旋转铰的爆炸图；
图12为图11的另一视角示意图；
图13为图11的再一视角示意图；
图14为平台梯另一实施例的三维立体示意图。
具体实施方式
为了便于理解本实用新型，下面将参照相关附图对本实用新型进行更全面的描述。附图中给出了本实用新型的较佳实施方式。但是，本实用新型可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本实用新型的公开内容理解的更加透彻全面。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本文所使用的所有的技术和科学术语与属于本实用新型的技术领域的技术人员通常理解的含义相同。本文中在本实用新型的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本实用新型。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
如图1所示，一种平台梯，包括第一爬梯100、第二爬梯200和连接于第一爬梯100、第二爬梯200之间的平台300。
如图1所示，第一爬梯100和第二爬梯200的宽度相同，且第一爬梯100的长度大于所述第二爬梯200，第一爬梯100和第二爬梯200组成倒y型结构。第一爬梯100和第二爬梯200的底部齐平，第二爬梯200的顶端与第一爬梯100的距顶部一定距离的位置处转动连接，使得两爬梯可打开和折叠。打开状态下，用户可在平台梯上作业，折叠状态下，平台梯占用空间小，容易放置。所述平台300位于平台梯的中上部，且低于两爬梯的转动连接处，平台300一端与第一爬梯100转动连接，另一端设置在第二爬梯200的脚蹬板上。平台梯打开状态下，平台300水平放置，用户可站立在平台上作业，平台梯折叠时，平台300相对于第一爬梯100转动直至垂直状态。规定第一爬梯100的方向为平台梯的正面，第二爬梯200的方向为平台梯的背面，用户通过平台梯的正面攀爬第一爬梯100而上下平台梯。
所述第一爬梯100包括第一侧杆121、第二侧杆122和第一脚蹬板123。第一侧杆121与第二侧杆122平行，第一脚蹬板123水平设置于第一侧杆121和第二侧杆122之间，数量可以为多个，且第一脚蹬板123低于平台300；所述第二爬梯200包括第三侧杆221、第四侧杆222和第二脚蹬板223，所述第三侧杆221与第四侧杆222平行，所述第二脚蹬板223水平设置于第三侧杆221和第四侧杆222之间，数量可以为多个，且最高位置的第二脚蹬板223支撑平台300的背面。一般情况下，用户会从正面攀爬平台梯，背面的第二脚蹬板223的使用率低于第一脚蹬板123，所以为避免资源浪费、节约加工成本，第二脚蹬板223的数量低于第一脚蹬板123的数量，即第一脚蹬板123之间间隔的距离小于第二脚蹬板223之间间隔的距离。
如图1所述，在一实施例中，所述第一爬梯100上设有扶手110，扶手110包括顶杆111和与顶杆111连接的竖状杆112。所述竖状杆112位于第一侧杆121和第二侧杆122上，且竖状杆112具有一定的弯曲度，顶部弯曲为水平状，与第一侧杆121和第二侧杆122的顶部在同一高度，竖状杆112的底部弯曲后与第一侧杆121和第二侧杆122接近于垂直，且固定在侧杆上。所述顶杆111为U型，开口朝向平台梯的正面，固定在第一侧杆121和第二侧杆122的顶部，且与竖状杆112的顶部在同一高度，顶杆111的开口的两个端部分别与两竖状杆112的水平顶部连接。
如图1所示，在一实施例中，所述平台梯上设置防止工具掉落的安全网400，所述安全网的外部设置固定安全网400的围栏210。所述安全网400的顶部固定在顶杆111上，安全网 400可以覆盖顶杆111的全部或部分位置。安全网400的底部固定在平台300上，安全网400可以围设平台300的除了正侧面之外的其余三个侧面。所述第三侧杆221的顶部与第二侧杆122转动连接，第四侧杆222的顶部与第一侧杆121转动连接，两连接点处设置水平的U形围栏210，围栏210与顶杆111之间设置竖钩116，如图4所示，竖钩116的两端分别钩住顶杆111和围栏210，防止围栏210转动。如图1所示，所述围栏210位于安全网400外部，与竖钩116一起固定安全网400，也同时增加平台上工作人员的安全性。
如图1至图3所示，在一实施例中，所述平台300包括踏板310、踢脚板320和支撑脚330。所述踏板310为具有一定厚度的水平板，包括第一侧面311、第二侧面312、第三侧面313、第四侧面314。所述踏板310的上表面上设置防滑坑纹，可防止用户滑倒以及防止工具滚动。所述第一侧面311位于第一爬梯100的两侧杆之间，位于平台梯的正面；所述第三侧面313位于第二爬梯200的两侧杆之间，位于平台梯的背面；所述第二侧面312和第四侧面314均位于第一爬梯100和第二爬梯200之间，位于平台梯的两侧面。所述踢脚板320围设踏板310的第二侧面312、第三侧面313和第四侧面314，防止工具滚落平台300。第一侧面311处不设置踢脚板320，方便从平台梯正面攀爬的工作人员踏上平台300。如图2和图5所示，支撑脚330位于所述踏板310的靠近平台梯背面的下表面处，支撑脚330的下表面与位置最高的第二脚蹬板223的上表面接触，且第二脚蹬板223给支撑脚330提供支撑。
如图1至图3所示，在一实施例中，所述平台300转动连接在第一、第二侧杆121、122上，且与第二爬梯200之间设置防翘装置。第二侧面312的靠近平台梯正面的端部处通过固定轴317和连接片318转动连接在第二侧杆122上，第四侧面314的靠近平台梯正面的端部处通过固定轴317和连接片318转动连接在第一侧杆121上。固定轴317固定在第一、第二侧杆121、122上，连接片318固定在第二侧面312和第四侧面314上，连接片318可绕固定轴317转动，使得平台300可与连接片318一起绕固定轴317相对于第一爬梯100转动，以达到第一爬梯100和第二爬梯200折叠时，平台300可与连接片318一起绕转动轴317转动直至平台300到达竖直状态的目的。平台300与转动轴317之间通过连接片318连接，使得平台300刚开始转动的瞬间不是竖直向上运动，而是存在少许平动的空间，以便解锁防翘装置。所述防翘装置位于第二爬梯200的侧杆与平台300的对应位置之间，图4所示为去除安全网400和部分第四侧杆222的结构示意图，图5所示为图4中B部结构放大示意图，图6为图4的另一视角示意图，图7为图6中C部结构放大示意图。如图4至图7所示，防翘装置包括相互配合的防翘板211和踏板锁316。所述防翘板211位于第二爬梯200的侧杆上， 包括防翘板2111、防翘转轴2113、弹弓2112。所述防翘转轴2113穿设防翘板2111，弹弓2112的中间部位缠绕在防翘转轴2113上，且弹弓2112抵顶防翘板2111，可使防翘板2111回弹归位。所述踏板锁316位于平台300的与第二爬梯200的侧杆相对应的位置处，底部为钩形，与防翘板2111配合，防翘板2111压制踏板锁316防止其翘起。
需将平台梯折叠时，需朝远离第一爬梯100的方向拉动平台300，使连接片318相对于固定轴317转动，踏板锁316相对于防翘板211水平移动直至脱离防翘板211，将第二爬梯200相对于第一爬梯100旋转闭合，且平台300继续绕固定轴317转动，直至第一爬梯100和第二爬梯200闭合，平台300竖直，完成平台梯的折叠。需将平台梯打开时，将第二爬梯200相对于第一爬梯100旋转直至规定的角度，该过程中旋转平台300，使之和连接片318一同绕固定轴317转动，直至踏板锁316与防翘板2111接触，用力按压平台300，防翘板2111发生弹性旋转，踏板锁316被按压至防翘板2111下部，之后防翘板2111通过弹弓2112回弹归位，位于踏板锁316上部，压制踏板锁316防止平台300翘起。
如图1、图8和图9所示，在一实施例中，第二侧面312和/或第四侧面314与第二爬梯200之间均设置支撑铰链315。所述支撑铰链315一端转动连接在最高的第二脚蹬板223上，另一端通过相互配合的异型孔3151和锁扣3152连接在第二侧面312和/或第四侧面314上，所述锁扣3152位于异型孔3151内。所述异型孔3151为L型，所述L的长边与支撑铰链315的长度方向平行，L的短边与支撑铰链315的长度方向垂直。平台梯工作状态下，支撑铰链315的两端均受到推力，锁扣3152位于异型孔3151的L型的短边处，不可移动，可固定平台300。当需要将平台梯折叠时，推支撑铰链315使锁扣3152位于异型孔3151的L型的长边处，锁扣3152可在异型孔3151的L型的长边内移动，随着第一爬梯100和第二爬梯200的折叠，第二脚蹬板223朝向第一爬梯100移动，平台300绕固定轴317转动至竖直状态(如图3所示)，第二脚蹬板223位于异型孔3151下方。
如图1和图10至图13所示，在一实施例中，所述两竖状杆112之间靠近平台梯顶部处设置可拆卸的栏杆113，防止工作人员从平台300上跌落。所述栏杆113的一端与一竖状杆112通过限位旋转铰114连接，所述栏杆113的另一端与另一竖状杆112通过锁115可拆卸连接。图11至图13为图1中的限位旋转铰114的爆炸图，限位旋转铰114包括第一限位部1141、第二限位部1142、限位转轴1143、相互配合的限位凹槽1144和限位凸起1145，所述第一限位部1141位于竖状杆112上，第二限位部1142位于栏杆113上，限位转轴1143位于第一限位部1141上，且第二限位部1142上设有与限位转轴1143配合的轴孔，所述限位凹槽 1144位于第一限位部1141的远离平台梯顶部的一端，所述限位凸起1145位于第二限位部1142的远离平台梯顶部的一端。在另一实施例中，所述限位凸起1145位于第一限位部1141的靠近平台梯顶部的一端，所述限位凹槽1144位于第二限位部1142的靠近平台梯顶部的一端。不管是哪种方式，限位旋转铰114均使得栏杆113的另一端只能向远离平台梯的顶部的方向转动。栏杆113绕限位旋转铰114在竖直面上向下旋转，转至不在两竖状杆112之间时，用户便可上下平台300。如图10所示，所述锁115包括第一锁定部1151和第二锁定部1152，第一锁定部1151开口朝下，使得栏杆113只能朝下移动，所述第二锁定部1152上设有凹槽，槽口背向竖状杆112，凹槽固定栏杆113的下表面，防止栏杆113向下移动。所述第二锁定部1152可相对于竖状杆112移动，需打开栏杆113时，只需掰动第二锁定部1152，使第二锁定部1152的凹槽离开栏杆113的下表面，栏杆113即可绕限位旋转铰114向下转动。
如图1所示，在一实施例中，所述第一爬梯100和/或第二爬梯200的侧杆的底端设置具有防滑坑纹的脚胶231，可防止平台梯的底面与地面产生滑动，提高平台梯水平放置时的稳定性。在另一实施例中，所述第二爬梯200的脚胶231上部设置脚轮230，需移动平台梯时，仅需使平台梯倾斜，使得脚轮230着地，便可拉动平台梯，省时省力。
如图14所示，在另一实施例中，所述第二爬梯200的第三侧杆221、第四侧杆222外侧均设置有伸缩斜撑，所述伸缩斜撑包括依次连接的固定座501、伸缩套管502、支撑杆504、连接杆505和支撑座506，所述伸缩套管502上端与固定座501枢接，所述伸缩套管502上端通过固定座501固装在第二爬梯200的侧杆外侧；所述支撑杆504上部穿设在伸缩套管502内，所述支撑杆504与伸缩套管之间设置有定位支撑杆504的弹片卡扣503，所述支撑杆504表面沿轴向设置有限制支撑杆504自转的卡条；所述支撑杆504下部通过连接杆505与支撑座506连接，所述连接杆505与支撑座506枢接，所述支撑座506底部设置有防滑胶垫。在平台梯使用时，将伸缩斜撑相对第二爬梯200的两侧杆倾斜打开，通过伸缩套管502和支撑杆504调节支撑座506着地，便可以加强平台梯的稳定性，避免平台梯在使用过程中发生侧翻，保证使用过程的安全性。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本实用新型的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对实用新型专利范围的限制。应当指出的是，对于本领域的普通技术人员来 说，在不脱离本实用新型构思的前提下，还可以做出若干变形和改进，这些都属于本实用新型的保护范围。因此，本实用新型专利的保护范围应以所附权利要求为准。

Claims (16)

  1. 一种平台梯，包括第一爬梯(100)、第二爬梯(200)和连接于第一爬梯(100)和第二爬梯(200)之间的平台(300)，所述第二爬梯(200)的一端与第一爬梯(100)转动连接，其特征在于，还包括扶手(110)、安全网(400)和围栏(210)，所述扶手(110)设置在所述第一爬梯(100)上，所述安全网(400)设置在所述扶手(110)的顶部与平台(300)之间，所述围栏(210)围设所述安全网(400)。
  2. 如权利要求1所述的平台梯，其特征在于：所述围栏(210)设置在所述第二爬梯(200)的与第一爬梯(100)转动连接的端部。
  3. 如权利要求1所述的平台梯，其特征在于：所述扶手(110)包括顶杆(111)和与顶杆(111)连接的竖状杆(112)，所述竖状杆(112)设置在第一爬梯(100)的两侧杆上，所述竖状杆(112)的顶部与第一爬梯(100)的顶部在同一高度，所述顶杆(111)同时连接竖状杆(112)和第一爬梯(100)的顶部，所述顶杆(111)挂设安全网(400)。
  4. 如权利要求3所述的平台梯，其特征在于：所述两竖状杆(112)之间靠近竖状杆(112)顶部处设置可拆卸的栏杆(113)。
  5. 如权利要求4所述的平台梯，其特征在于：所述栏杆(113)的一端与一竖状杆(112)通过限位旋转铰(114)连接，所述栏杆(113)的另一端与另一竖状杆(112)通过锁(115)可拆卸连接，所述限位旋转铰(114)使得栏杆(113)只能向远离平台梯的顶部的方向转动。
  6. 如权利要求5所述的平台梯，其特征在于：所述限位旋转铰(114)包括第一限位部(1141)、第二限位部(1142)、限位转轴(1143)、相互配合的限位凹槽(1144)和限位凸起(1145)，所述第一限位部(1141)位于竖状杆(112)上，第二限位部(1142)位于栏杆(113)上，限位转轴(1143)位于第一限位部(1141)上，且第二限位部(1142)上设有与限位转轴(1143)配合的轴孔，所述限位凹槽(1144)位于第一限位部(1141)的远离平台梯顶部的一端，所述限位凸起(1145)位于第二限位部(1142)的远离平台梯顶部的一端。
  7. 如权利要求5所述的平台梯，其特征在于：所述锁(115)包括位于竖状杆(112)上的相互配合的第一锁定部(1151)和第二锁定部(1152)，所述第一锁定部(1151)为开口结构且开口背向平台梯的顶部，所述第二锁定部(1152)设有凹槽，且槽口背向竖状杆(112)。
  8. 如权利要求1所述的平台梯，其特征在于：所述平台(300)包括踏板(310)、踢脚板(320)，所述踏板(310)包括第一侧面(311)、第二侧面(312)、第三侧面(313)和第四侧面(314)，所述第一侧面(311)位于第一爬梯(100)的两侧杆之间，所述第三侧面(313)位于第二爬梯(200)的两侧杆之间，所述第二侧面(312)和第四侧面(314)均位于第一爬梯(100)和第二爬梯(200)之 间，所述踢脚板(320)围设踏板(310)的第二侧面(312)、第三侧面(313)和第四侧面(314)，所述第二侧面(312)、第四侧面(314)的靠近第一侧面(311)的端部与第一爬梯(100)的两侧杆转动连接，所述踏板(310)的靠近第三侧面(313)的一端由第二爬梯(200)的脚蹬板支撑，所述第三侧面(313)以及至少部分第二侧面(312)、第四侧面(314)固定安全网(400)的底端。
  9. 如权利要求8所述的平台梯，其特征在于：所述平台(300)还包括固定在平台(300)下表面上的支撑脚(330)，所述支撑脚(330)位于平台(300)和第二爬梯(200)的脚蹬板之间。
  10. 如权利要求8所述的平台梯，其特征在于：所述第二侧面(312)和/或第四侧面(314)与第二爬梯(200)之间设置支撑铰链(315)。
  11. 如权利要求10所述的平台梯，其特征在于：所述支撑铰链(315)一端转动连接在第二爬梯(200)上，另一端通过相互配合的异型孔(3151)和锁扣(3152)连接在第二侧面(312)和/或第四侧面(314)上，所述锁扣(3152)位于异型孔(3151)内。
  12. 如权利要求8所述的平台梯，其特征在于：所述第二爬梯(200)的侧杆与平台(300)的对应位置之间设置防翘装置。
  13. 如权利要求12所述的平台梯，其特征在于：所述第二侧面(312)、第四侧面(314)与第一爬梯(100)的两侧杆之间设置转动装置，所述转动装置包括相互配合的固定轴(317)和连接片(318)，所述固定轴(317)固定在第一爬梯(100)的两侧杆上，所述连接片(318)固定在第二侧面(312)和第四侧面(314)上，所述连接片(318)与所述固定轴(317)转动连接，所述防翘装置包括相互配合的踏板锁(316)和防翘板(211)，所述踏板锁(316)位于平台(300)上，所述防翘板(211)位于第二爬梯(200)的侧杆上，且平台梯处于打开状态时，所述防翘板(211)抵挡所述踏板锁(316)用于阻挡平台(300)发生转动，需折叠平台梯时，朝远离第一爬梯(100)的方向拉动平台(300)，使连接片(318)相对于固定轴(317)转动，踏板锁(316)相对于防翘板(211)移动直至脱离防翘板(211)。
  14. 如权利要求1所述的平台梯，其特征在于：所述第一爬梯(100)和/或第二爬梯(200)的侧杆的底端设置具有防滑坑纹的脚胶(231)。
  15. 如权利要求14所述的平台梯，其特征在于：所述第二爬梯(200)的脚胶(231)的上部设置脚轮(230)。
  16. 如权利要求1所述的平台梯，其特征在于：所述第二爬梯(200)的两侧杆外侧均设置有伸缩斜撑，所述伸缩斜撑包括依次连接的固定座(501)、伸缩套管(502)、支撑杆(504)、连接杆(505)和支撑座(506)，所述伸缩套管(502)上端与固定座(501)枢接，所述伸缩套管(502) 上端通过固定座(501)固装在第二爬梯(200)的侧杆外侧；所述支撑杆(504)上部穿设在伸缩套管(502)内，所述支撑杆(504)与伸缩套管之间设置有定位支撑杆(504)的弹片卡扣(503)，所述支撑杆(504)表面沿轴向设置有限制支撑杆(504)自转的卡条；所述支撑杆(504)下部通过连接杆(505)与支撑座(506)连接，所述连接杆(505)与支撑座(506)枢接，所述支撑座(506)底部设置有防滑胶垫。
PCT/CN2019/077479 2018-03-09 2019-03-08 平台梯 WO2019170141A1 (zh)

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