WO2013185399A1 - Pull type ladder for vehicle - Google Patents

Pull type ladder for vehicle Download PDF

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Publication number
WO2013185399A1
WO2013185399A1 PCT/CN2012/078538 CN2012078538W WO2013185399A1 WO 2013185399 A1 WO2013185399 A1 WO 2013185399A1 CN 2012078538 W CN2012078538 W CN 2012078538W WO 2013185399 A1 WO2013185399 A1 WO 2013185399A1
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WO
WIPO (PCT)
Prior art keywords
ladder
bearing beam
slider
vehicle
support plate
Prior art date
Application number
PCT/CN2012/078538
Other languages
French (fr)
Chinese (zh)
Inventor
李世奇
王�锋
张树立
谢忠华
廖晓
Original Assignee
烟台杰瑞石油服务集团股份有限公司
烟台杰瑞石油装备技术有限公司
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 烟台杰瑞石油服务集团股份有限公司, 烟台杰瑞石油装备技术有限公司 filed Critical 烟台杰瑞石油服务集团股份有限公司
Publication of WO2013185399A1 publication Critical patent/WO2013185399A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
    • B60R3/02—Retractable steps or ladders, e.g. movable under shock
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
    • E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members
    • E06C5/04—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic

Definitions

  • the present invention relates to the field of ladder technology, and in particular to a vehicle pull type ladder.
  • a common vehicle-mounted ladder has two types of fixed ladders and movable ladders. The former is fixedly installed and occupies space. The latter needs to be moved and installed every time, which is inconvenient to use.
  • ladders with folding functions are widely used in vehicles of various purposes, the existing folding ladders have some shortcomings due to structural limitations: First, the pedals are narrowly set, and at different inclinations, the pedals are not always guaranteed. Horizontal position, unsafe use, insufficient bearing capacity, poor climbing height, flexibility and appearance.
  • the present invention provides a vehicle pull-type ladder for the inconvenience of the existing folding ladder. It can be conveniently folded and unfolded together with the armrest to ensure the horizontal position of the pedal at any inclination.
  • a vehicle pull type ladder comprising a slider, a slide rail, a left ladder frame, a right ladder frame and a pedal, wherein the slider is disposed in the slide rail
  • the ladder frame includes an upper support plate, a lower support plate, an upper load-bearing beam and a lower load-bearing beam, and the ends of the upper support plate, the lower support plate, the upper load-bearing beam and the lower load-bearing beam are hinged to each other, and integrally form a parallelogram mechanism, One end of the upper support plate is connected to the slider, the ladder frame is uniformly provided with a pin hole, and the pin hole is provided with an hinge shaft, and the pedal is installed between the left and right ladder frames and passes through the The hinge shaft is hinged to the ladder frame.
  • the invention has the beneficial effects that: since the invention adopts a parallelogram structure, each component is hingedly connected, so that the ladder ladder can always maintain a horizontal position during the unfolding process, so that the ladder can meet the requirements of different heights; Make the pedal design wider without affecting the folding function. It is easy to use, safe and reliable, especially suitable for car ladders.
  • the present invention can also be improved as follows.
  • the guard rail device comprises an armrest and a main connecting rod
  • the main connecting rod is hingedly connected with the upper bearing beam, the lower bearing beam and the armrest, and is composed of Parallelogram mechanism.
  • the guardrail device automatically realizes the deployment and stacking of the guardrail when the ladder is unfolded and overlapped, and is convenient to use, and the handrail is always kept parallel with the inclination of the ladder.
  • a chute is disposed on the main connecting rod at a joint with the upper bearing beam.
  • the advantage of using the above further solution is that the guardrail device can be more easily followed when the ladder is stowed.
  • a lower portion of the slider is provided with a roller, and a side of the slider is provided with a sliding plate.
  • the weight beam is further provided with a notch, and the hinge shaft portion is convex. The positions of the notches and projections correspond when the ladder is stowed.
  • the pedal is made of a punched plate flange.
  • a round tube is arranged at the bottom of the left and right ladder frames.
  • the beneficial effect of adopting the above further solution is that the round tube can be used as a manual folding ladder hand.
  • the slide rail is provided with a driving device that pushes the slider to move.
  • the driving device is a hydraulic cylinder mechanism or a motor-driven mechanism.
  • the advantage of using the above further solution is that the ladder can be automatically retracted by means of a drive, especially for some large ladders.
  • main link is further provided with a sub-link
  • the sub-link is hinged with the main link
  • the sub-link is parallel to the arm.
  • FIG. 1 is a schematic view showing the structure of a use state of a pull-type ladder for a vehicle according to the present invention
  • Figure 2 is a left side view of Figure 1;
  • Figure 3 is a plan view of Figure 2;
  • Figure 4 is a schematic structural view showing the stowed state of the pull-type ladder for a vehicle according to the present invention
  • Figure 5 is a schematic view showing the structure of the slider of the present invention.
  • a vehicle pull type ladder includes a slider 15, a slide 12, a left ladder frame, a right ladder frame and a pedal 4, and the slider 15 is disposed on the slideway 12.
  • the ladder frame includes The upper support plate 9, the lower support plate 1, the upper load-bearing beam 3 and the lower load-bearing beam 2, the ends of the upper support plate 9, the upper load-bearing beam 3, the lower support plate 1, and the lower load-bearing beam 2 are hingedly connected in turn, as a whole Forming a parallelogram mechanism, one end of the upper support plate 9 is connected to the slider 15, the ladder frame is uniformly provided with a pin hole, and the pin hole is provided with an hinge shaft 5, and the pedal 4 is installed at the Between the left and right ladder frames and through the hinge shaft 5, the ladder frame is hinged.
  • the slide 12 is further provided with a limiting plate at the exit end of the ladder.
  • At least one side of the left and right ladder frames is provided with a guard rail device, the guard rail device comprises an armrest 7 and a main connecting rod 8, the main connecting rod 8 and the upper bearing beam 3, the lower bearing beam 2 and the armrest 7 Articulated connection, integral to form a parallelogram mechanism.
  • a chute 16 is provided on the main link 8 at a hinged portion with the upper load-bearing beam 3.
  • a roller 11 is disposed at a lower portion of the slider 15, and a slider 10 is disposed at a side of the slider 15.
  • the slider 10 is slidably engaged with the upper edge and the side wall of the slide 12.
  • the bearing beam is further provided with a notch 14 , and the hinge shaft 5 is convex.
  • the position of the recess 14 and the projection correspond to when the ladder is stowed.
  • the pedal 4 is made of a punched plate flange.
  • a circular tube 13 is provided at the bottom of the left and right ladder frames.
  • the slide 12 is provided with a driving device for pushing the slider 15 to move.
  • the drive device is a hydraulic cylinder mechanism or a motorized mechanism. If the hydraulic cylinder is fixed at one end of the slide rail 12, the piston rod of the hydraulic cylinder is connected with the slider 15, so that the ladder can be automatically retracted by the hydraulic cylinder.
  • the main link 8 is further provided with a sub-link 6 which is hinged to the main link 8, and the sub-link 6 is parallel to the armrest 7.
  • the working principle of the invention is as follows: when transporting or not in use, lifting the ladder by the handle, the four load-bearing beams of the ladder are overlapped, the upper and lower load-bearing beam protrusions and the recess 14 are matched, the pedals 4 are stacked in the same plane, and the handrail 7 is passed
  • the connecting rod structure is folded on both sides of the ladder; the ladder enters the slide 12 through the slider 15, and the sliding plate 10 on both sides of the sliding block 15 effectively avoids collision between the ladder and the guide rail; Slide 12, the slider 15 moves to the slide limit plate to remain stationary, and the handle is placed on the ground.
  • the four load-bearing beams form a parallelogram structure with the slider 15 as the origin to expand the ladder, and the pedal 4 is kept horizontal. During the expansion of the ladder, the armrest link is automatically deployed under the action of the load-bearing beam.
  • the slide 12 can be installed at the bottom of the vehicle body, and when it is placed under the cabinet, it does not need a separate space.

Abstract

A pull type ladder for a vehicle comprises a slide block (15), a slide way (12), a left ladder frame, a right ladder frame, and steps (4). The slide block (15) is disposed in the slide way (12), the ladder frame comprise an upper support board (9), a lower support board (1), an upper bearing beam (3), and a lower bearing beam (2). Ends of the upper support board (9), the lower support board (1), the upper bearing beam (3) and the lower bearing beam (2) are hinged together to form a parallelogram mechanism. One end of the upper support board (9) is connected to the slide block (15). Pin holes are evenly distributed in the ladder frame. Hinge shafts (5) are disposed in the pin holes, and the steps (4) are mounted between the left and right ladder frames and hinged to the ladder frame by the hinge shafts (5). At least one side of the left and right ladder frames has a guardrail device. The ladder of the present invention enables the steps to remain at horizontal positions on platforms of different heights, and handrails are extended or folded with the ladder. The ladder is convenient in use, safe, and reliable, and is suitable for use on a vehicle.

Description

说 明 书 一种车用抽拉式爬梯  Description A type of vehicle pull-type ladder
技术领域 本发明涉及一种爬梯技术领域， 尤其涉及一种车用抽拉式爬梯。 背景技术 目前常见车载式梯子有固定梯、 可移动梯子两种， 前者固定安装， 占用 空间， 后者每次使用均需要移动安装， 使用不方便。 虽然具备折叠功能的梯 子在各种用途的车辆上也广泛应用，但现有的折叠梯由于结构的局限尚存在 一些不足： 首先是踏板设置窄小， 在不同倾斜度时， 不能保证踏板总是水平 位置， 使用不安全， 承重力度不足， 在攀登高度、 展开灵活性以及外观上也 比较差， 其次是折叠梯的护栏扶手需要单独安装， 在使用上也很不方便。 尤 其是在车上配用时无法与车体融为一体。 发明内容 本发明针对现有的的折叠梯使用不便的不足， 提供一种车用抽拉式爬 梯。其可方便的连同扶手一起折叠展开，在任意倾斜度上保证踏板水平位置。 TECHNICAL FIELD The present invention relates to the field of ladder technology, and in particular to a vehicle pull type ladder. BACKGROUND OF THE INVENTION At present, a common vehicle-mounted ladder has two types of fixed ladders and movable ladders. The former is fixedly installed and occupies space. The latter needs to be moved and installed every time, which is inconvenient to use. Although ladders with folding functions are widely used in vehicles of various purposes, the existing folding ladders have some shortcomings due to structural limitations: First, the pedals are narrowly set, and at different inclinations, the pedals are not always guaranteed. Horizontal position, unsafe use, insufficient bearing capacity, poor climbing height, flexibility and appearance. Secondly, the railing rails of the folding ladder need to be installed separately, which is also very inconvenient to use. Especially when it is used in the car, it cannot be integrated with the car body. SUMMARY OF THE INVENTION The present invention provides a vehicle pull-type ladder for the inconvenience of the existing folding ladder. It can be conveniently folded and unfolded together with the armrest to ensure the horizontal position of the pedal at any inclination.
本发明的技术方案如下： 一种车用抽拉式爬梯， 包括滑块、 滑道、 左梯 架、 右梯架及踏板， 其特征在于， 所述滑块设置在所述滑道中， 所述梯架包 括上支撑板、 下支撑板、 上承重梁和下承重梁， 所述上支撑板、 下支撑板、 上承重梁和下承重梁的端部相互铰接， 整体构成平行四边形机构， 所述上支 撑板的一端与所述滑块连接， 所述梯架上均布有销孔， 所述销孔中设有铰接 轴， 所述踏板安装在所述左、 右梯架之间并通过所述铰接轴与所述梯架相铰 接。 本发明的有益效果是： 由于本发明采用平行四边形结构， 各零部件通 过铰接连接， 可以实现折叠梯在展开过程梯子踏板始终保持水平位置， 从而 使梯子可以满足不同高度的使用要求； 也可以是使踏板设计更宽而不影响折 叠功能。 使用方便， 安全可靠， 尤其适合于车载爬梯。 The technical solution of the present invention is as follows: A vehicle pull type ladder, comprising a slider, a slide rail, a left ladder frame, a right ladder frame and a pedal, wherein the slider is disposed in the slide rail, The ladder frame includes an upper support plate, a lower support plate, an upper load-bearing beam and a lower load-bearing beam, and the ends of the upper support plate, the lower support plate, the upper load-bearing beam and the lower load-bearing beam are hinged to each other, and integrally form a parallelogram mechanism, One end of the upper support plate is connected to the slider, the ladder frame is uniformly provided with a pin hole, and the pin hole is provided with an hinge shaft, and the pedal is installed between the left and right ladder frames and passes through the The hinge shaft is hinged to the ladder frame. The invention has the beneficial effects that: since the invention adopts a parallelogram structure, each component is hingedly connected, so that the ladder ladder can always maintain a horizontal position during the unfolding process, so that the ladder can meet the requirements of different heights; Make the pedal design wider without affecting the folding function. It is easy to use, safe and reliable, especially suitable for car ladders.
在上述技术方案的基础上， 本发明还可以做如下改进。  Based on the above technical solutions, the present invention can also be improved as follows.
进一步， 所述左、 右梯架的至少一侧设有护栏装置， 所述护栏装置包括 扶手及主连杆， 所述主连杆与所述上承重梁、 下承重梁以及扶手铰接连接， 组成平行四边形机构。  Further, at least one side of the left and right ladder frames is provided with a guard rail device, the guard rail device comprises an armrest and a main connecting rod, and the main connecting rod is hingedly connected with the upper bearing beam, the lower bearing beam and the armrest, and is composed of Parallelogram mechanism.
采用上述进一步方案的有益效果是， 护栏装置在梯子展开和叠合时， 自 动实现护栏展开和叠合， 使用方便， 而且扶手始终保持和梯子倾斜度保持平 行。  The advantage of using the above further solution is that the guardrail device automatically realizes the deployment and stacking of the guardrail when the ladder is unfolded and overlapped, and is convenient to use, and the handrail is always kept parallel with the inclination of the ladder.
进一步， 所述主连杆上在与所述上承重梁相铰接处设有滑槽。  Further, a chute is disposed on the main connecting rod at a joint with the upper bearing beam.
采用上述进一步方案的有益效果是， 在爬梯在收起时， 护栏装置能更方 便的随动。  The advantage of using the above further solution is that the guardrail device can be more easily followed when the ladder is stowed.
进一步， 所述滑块的下部设有滚轮， 所述滑块的侧边设有滑板。  Further, a lower portion of the slider is provided with a roller, and a side of the slider is provided with a sliding plate.
采用上述进一步方案的有益效果是， 滚轮设计使爬梯放缩阻力小， 方便 使用。  The advantage of using the above further solution is that the roller design makes the ladder have small contraction resistance and is convenient to use.
进一步， 所述^重梁上还设有凹口， 所述铰接轴部位凸起。 所述凹口和 凸起的位置在爬梯收起时相对应。  Further, the weight beam is further provided with a notch, and the hinge shaft portion is convex. The positions of the notches and projections correspond when the ladder is stowed.
采用上述进一步方案的有益效果是， 这种凹口和凸起的对应设置， 可以 使爬梯在收起时， 凸起与凹口相互嵌合， 占用空间更小。  The advantage of using the above further solution is that the corresponding arrangement of the notches and the projections allows the projections and the recesses to be fitted to each other when the ladder is stowed, and the space occupied is smaller.
进一步， 所述踏板为采用沖孔板翻边制成。  Further, the pedal is made of a punched plate flange.
采用上述进一步方案的有益效果是， 翻边设计不仅美观实用， 而且加强 了踏板机械强度。  The advantage of using the above further solution is that the flange design is not only aesthetically pleasing but also enhances the pedal mechanical strength.
进一步， 所述左、 右梯架的底部设有圓管。  Further, a round tube is arranged at the bottom of the left and right ladder frames.
采用上述进一步方案的有益效果是，该圓管可以作为人工放缩爬梯的把 手。 The beneficial effect of adopting the above further solution is that the round tube can be used as a manual folding ladder hand.
进一步， 所述滑道上设有推动所述滑块运动的驱动装置。  Further, the slide rail is provided with a driving device that pushes the slider to move.
进一步， 所述驱动装置是液压缸机构或电动机构。  Further, the driving device is a hydraulic cylinder mechanism or a motor-driven mechanism.
采用上述进一步方案的有益效果是，采用驱动装置可以实现爬梯自动收 放， 尤其对于一些大型爬梯非常必要。  The advantage of using the above further solution is that the ladder can be automatically retracted by means of a drive, especially for some large ladders.
进一步，所述主连杆上还设有副连杆，所述副连杆与所述主连杆相铰接， 所述副连杆与所述扶手平行。  Further, the main link is further provided with a sub-link, the sub-link is hinged with the main link, and the sub-link is parallel to the arm.
采用上述进一步方案的有益效果是， 副连杆适合于在较大的爬梯上使 用。 附图说明 图 1为本发明车用抽拉式爬梯的使用状态结构示意图；  A further advantage of the above further solution is that the secondary link is suitable for use on a larger ladder. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the structure of a use state of a pull-type ladder for a vehicle according to the present invention;
图 2为图 1的左视图；  Figure 2 is a left side view of Figure 1;
图 3为图 2的俯视图；  Figure 3 is a plan view of Figure 2;
图 4为本发明车用抽拉式爬梯的收起状态结构示意图；  Figure 4 is a schematic structural view showing the stowed state of the pull-type ladder for a vehicle according to the present invention;
图 5为本发明的滑块结构示意图。  Figure 5 is a schematic view showing the structure of the slider of the present invention.
附图中， 各标号所代表的部件列表如下： 1、 下支撑板， 2、 下承重梁， 3、 上承重梁， 4、 踏板， 5、 铰接轴， 6、 副连杆， 7、 扶手， 8、 主连杆， 9、 上支撑板， 10、 滑板， 1 1、 滚轮， 12、 滑道， 1 3、 圓管， 14、 凹口， 15、 滑 块， 16、 滑槽。 具体实施方式 以下结合附图对本发明的原理和特征进行描述， 所举实例只用于解释 本发明， 并非用于限定本发明的范围。  In the drawings, the list of parts represented by each label is as follows: 1. Lower support plate, 2. Lower load-bearing beam, 3. Upper load-bearing beam, 4. Pedal, 5. Hinged shaft, 6. Secondary connecting rod, 7. Handrail, 8, the main connecting rod, 9, the upper support plate, 10, skateboard, 1 1, roller, 12, slide, 1 3, round tube, 14, notch, 15, slider, 16, chute. The principles and features of the present invention are described in the following with reference to the accompanying drawings, which are intended to illustrate the invention and not to limit the scope of the invention.
如图 1到图 5所示， 一种车用抽拉式爬梯， 包括滑块 15、 滑道 12、 左 梯架、 右梯架及踏板 4 , 所述滑块 15设置在所述滑道 12中， 所述梯架包括 上支撑板 9、 下支撑板 1、 上承重梁 3和下承重梁 2 , 所述上支撑板 9、 上承 重梁 3、 下支撑板 1、 和下承重梁 2的端部依次铰接连接， 整体构成平行四 边形机构， 所述上支撑板 9的一端与所述滑块 15连接， 所述梯架上均布有 销孔， 所述销孔中设有铰接轴 5 , 所述踏板 4安装在所述左、 右梯架之间并 通过所述铰接轴 5与所述梯架相铰接。 所述滑道 12在爬梯出口端还设有限 位板。 As shown in FIG. 1 to FIG. 5, a vehicle pull type ladder includes a slider 15, a slide 12, a left ladder frame, a right ladder frame and a pedal 4, and the slider 15 is disposed on the slideway 12. The ladder frame includes The upper support plate 9, the lower support plate 1, the upper load-bearing beam 3 and the lower load-bearing beam 2, the ends of the upper support plate 9, the upper load-bearing beam 3, the lower support plate 1, and the lower load-bearing beam 2 are hingedly connected in turn, as a whole Forming a parallelogram mechanism, one end of the upper support plate 9 is connected to the slider 15, the ladder frame is uniformly provided with a pin hole, and the pin hole is provided with an hinge shaft 5, and the pedal 4 is installed at the Between the left and right ladder frames and through the hinge shaft 5, the ladder frame is hinged. The slide 12 is further provided with a limiting plate at the exit end of the ladder.
所述左、 右梯架的至少一侧设有护栏装置， 所述护栏装置包括扶手 7及 主连杆 8 , 所述主连杆 8与所述上承重梁 3、 下承重梁 2以及扶手 7铰接连 接， 整体组成平行四边形机构。  At least one side of the left and right ladder frames is provided with a guard rail device, the guard rail device comprises an armrest 7 and a main connecting rod 8, the main connecting rod 8 and the upper bearing beam 3, the lower bearing beam 2 and the armrest 7 Articulated connection, integral to form a parallelogram mechanism.
所述主连杆 8上在与所述上承重梁 3相铰接处设有滑槽 16。  A chute 16 is provided on the main link 8 at a hinged portion with the upper load-bearing beam 3.
所述滑块 15的下部设有滚轮 11 , 所述滑块 15的侧边设有滑板 10。 所 述滑板 10与所述滑道 12的上沿及侧壁之间可滑动配合。  A roller 11 is disposed at a lower portion of the slider 15, and a slider 10 is disposed at a side of the slider 15. The slider 10 is slidably engaged with the upper edge and the side wall of the slide 12.
所述承重梁上还设有凹口 14 , 所述铰接轴 5部位凸起。 所述凹口 14和 凸起的位置在爬梯收起时相对应。  The bearing beam is further provided with a notch 14 , and the hinge shaft 5 is convex. The position of the recess 14 and the projection correspond to when the ladder is stowed.
所述踏板 4为采用沖孔板翻边制成。  The pedal 4 is made of a punched plate flange.
所述左、 右梯架的底部设有圓管 1 3。  A circular tube 13 is provided at the bottom of the left and right ladder frames.
所述滑道 12上设有推动所述滑块 15运动的驱动装置。所述驱动装置是 液压缸机构或电动机构。 如将液压缸固定在所述滑道 12 的一端， 将液压缸 的活塞杆与所述滑块 15连接， 即可以通过液压缸带动爬梯自动收放。  The slide 12 is provided with a driving device for pushing the slider 15 to move. The drive device is a hydraulic cylinder mechanism or a motorized mechanism. If the hydraulic cylinder is fixed at one end of the slide rail 12, the piston rod of the hydraulic cylinder is connected with the slider 15, so that the ladder can be automatically retracted by the hydraulic cylinder.
所述主连杆 8上还设有副连杆 6 ,所述副连杆 6与所述主连杆 8相铰接， 所述副连杆 6与所述扶手 7平行。  The main link 8 is further provided with a sub-link 6 which is hinged to the main link 8, and the sub-link 6 is parallel to the armrest 7.
本发明的工作原理是： 在运输或不使用时， 通过提手抬起爬梯， 爬梯的 四个承重梁叠合，上下承重梁凸起和凹口 14配合,踏板 4叠合处于同一平面， 扶手 7通过连杆结构折合于爬梯两侧； 梯子通过滑块 15进入滑道 12 , 滑块 15两侧的滑板 10有效避免梯子和导轨的碰撞； 使用时通过提手将爬梯抽出 滑道 12 , 滑块 15移动到滑道限位板处保持静止， 将提手放置于地面， 四个 承重梁以滑块 15为原点形成平行四边形结构使爬梯展开，踏板 4保持水平状 态， 在爬梯展开过程中， 扶手连杆在承重梁的作用下自动展开。 The working principle of the invention is as follows: when transporting or not in use, lifting the ladder by the handle, the four load-bearing beams of the ladder are overlapped, the upper and lower load-bearing beam protrusions and the recess 14 are matched, the pedals 4 are stacked in the same plane, and the handrail 7 is passed The connecting rod structure is folded on both sides of the ladder; the ladder enters the slide 12 through the slider 15, and the sliding plate 10 on both sides of the sliding block 15 effectively avoids collision between the ladder and the guide rail; Slide 12, the slider 15 moves to the slide limit plate to remain stationary, and the handle is placed on the ground. The four load-bearing beams form a parallelogram structure with the slider 15 as the origin to expand the ladder, and the pedal 4 is kept horizontal. During the expansion of the ladder, the armrest link is automatically deployed under the action of the load-bearing beam.
所述滑道 12可以安装在车辆箱体的底部， 收起时进入箱体下面， 基本 不需要单独的放置空间。  The slide 12 can be installed at the bottom of the vehicle body, and when it is placed under the cabinet, it does not need a separate space.
以上所述仅为本发明的较佳实施例， 并不用以限制本发明， 凡在本发明 的精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发 明的保护范围之内。  The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

权 利 要 求 书 Claim
1. 一种车用抽拉式爬梯， 包括滑块（15 )、 滑道（12 )、 左梯架、 右梯 架及踏板 ( 4 ) , 其特征在于， 所述滑块（ 15 )设置在所述滑道（ 12 ) 中， 所 述梯架包括上支撑板（ 9 )、 下支撑板（ 1 )、 上承重梁（ 3 )和下承重梁（ 2 ), 所述上支撑板（ 9 )、 下支撑板（ 1 )、 上承重梁（ 3 )和下承重梁（ 2 ) 的端部 相互铰接， 整体构成平行四边形机构， 所述上支撑板（9 ) 的一端与所述滑 块（15 )连接， 所述梯架上均布有销孔， 所述销孔中设有铰接轴（5 ), 所述 踏板 ( 4 )安装在所述左、 右梯架之间并通过所述铰接轴（ 5 )与所述梯架相 铰接。 A pull-out ladder for a vehicle, comprising a slider (15), a slide (12), a left ladder frame, a right ladder frame and a pedal (4), wherein the slider (15) is disposed at In the slide (12), the ladder frame comprises an upper support plate (9), a lower support plate (1), an upper load-bearing beam (3) and a lower load-bearing beam (2), and the upper support plate (9) The ends of the lower support plate (1), the upper load-bearing beam (3) and the lower load-bearing beam (2) are hinged to each other, and integrally form a parallelogram mechanism, one end of the upper support plate (9) and the slider (15) Connecting, the ladder frame is uniformly provided with a pin hole, and the pin hole is provided with an hinge shaft (5), and the pedal (4) is installed between the left and right ladder frames and passes through the hinge shaft (5) articulated with the ladder frame.
2. 根据权利要求 1 所述的车用抽拉式爬梯， 其特征在于， 所述左、 右 梯架的至少一侧设有护栏装置， 所述护栏装置包括扶手（ 7 )及主连杆（ 8 ), 所述主连杆 ( 8 ) 与所述上承重梁（ 3 ), 下承重梁（ 2 )及扶手（ 7 )铰接连 接， 组成平行四边形机构。  2. The vehicle pull-type ladder according to claim 1, wherein at least one side of the left and right ladder frames is provided with a guard rail device, and the guard rail device comprises an armrest (7) and a main connecting rod ( 8), the main connecting rod (8) is hingedly connected with the upper bearing beam (3), the lower bearing beam (2) and the armrest (7) to form a parallelogram mechanism.
3. 根据权利要求 2 所述的车用抽拉式爬梯， 其特征在于， 所述主连杆 ( 8 )上在与所述上承重梁（ 3 )相铰接处设有滑槽（ 16 )。  3. The vehicle pull-type ladder according to claim 2, characterized in that the main link (8) is provided with a chute (16) at a joint with the upper load-bearing beam (3).
4. 根据权利要求 3所述的车用抽拉式爬梯，其特征在于，所述滑块（ 15 ) 的下部设有滚轮 ( 1 1 ), 所述滑块（ I 5 ) 的侧边设有滑板（ 10 ) 。 4. The vehicle pull-type ladder according to claim 3, wherein a lower part of the slider (15) is provided with a roller (1 1 ), and a side of the slider (I 5 ) is provided Skateboard (10).
5. 根据权利要求 3 所述的车用抽拉式爬梯， 其特征在于， 所述承重梁 上还设有凹口 （l , 所述铰接轴 （5 )部位凸起。  The vehicle pull-type ladder according to claim 3, wherein the load-bearing beam is further provided with a notch (1, the hinge shaft (5) is convex.
6. 根据权利要求 3所述的车用抽拉式爬梯， 其特征在于， 所述踏板 ( 4 ) 为采用沖孔板翻边制成。  6. The vehicle pull-type ladder according to claim 3, characterized in that the pedal (4) is made by punching a plate.
7. 根据权利要求 3 所述的车用抽拉式爬梯， 其特征在于， 所述左、 右 梯架的底部设有圓管 （1 3 )。  The vehicle pull-type ladder according to claim 3, wherein a round pipe (13) is provided at a bottom of the left and right ladder frames.
8. 根据权利要求 3所述的车用抽拉式爬梯，其特征在于，所述滑道（ 12 ) 上设有推动所述滑块（ 15 )运动的驱动装置。 8. The vehicle pull-type ladder according to claim 3, wherein the slide (12) A drive device for urging the movement of the slider (15) is provided thereon.
9. 根据权利要求 8 所述的车用抽拉式爬梯， 其特征在于， 所述驱动装 置是液压缸机构或电动机构。  The vehicle pull-type ladder according to claim 8, wherein the driving device is a hydraulic cylinder mechanism or a motor-driven mechanism.
10.根据权利要求 8所述的车用抽拉式爬梯， 其特征在于， 所述主连杆 ( 8 )上还设有副连杆（ 6 ), 所述副连杆（ 6 ) 与所述主连杆（ 8 )相铰接， 所述副连杆 ( 6 ) 与所述扶手（ 7 )平行。  The vehicle pull-type ladder according to claim 8, wherein the main link (8) is further provided with a sub-link (6), the sub-link (6) and the The main link (8) is hinged, and the sub-link (6) is parallel to the armrest (7).
PCT/CN2012/078538 2012-06-15 2012-07-12 Pull type ladder for vehicle WO2013185399A1 (en)

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