CN200971751Y - Locking device for telescopic lalder - Google Patents

Locking device for telescopic lalder Download PDF

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Publication number
CN200971751Y
CN200971751Y CN 200620126632 CN200620126632U CN200971751Y CN 200971751 Y CN200971751 Y CN 200971751Y CN 200620126632 CN200620126632 CN 200620126632 CN 200620126632 U CN200620126632 U CN 200620126632U CN 200971751 Y CN200971751 Y CN 200971751Y
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CN
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Grant
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Prior art keywords
ladder
section
positioning
pin
ramp
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Application number
CN 200620126632
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Chinese (zh)
Inventor
范刚
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范刚
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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/04Ladders for resting against objects, e.g. walls poles, trees
    • E06C1/08Ladders for resting against objects, e.g. walls poles, trees multi-part
    • E06C1/12Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
    • E06C1/125Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other

Abstract

The utility model discloses a locking device of retractable ladder, including a lock-pin mechanism. The lock-pin mechanism includes a pin body, a locating hole and a spring. The locking device has following characteristics: an unlocking bevel and a locating bevel are fixed alternately on the pin body; on cross piece of adjacent sections, an embedding cooperation part is mounted in correspondence with the unlocking bevel and the locating bevel; the unlocking bevel faces head of the pin body and inclines to adjacent section side with corresponding embedding cooperation part; facing direction of the locating bevel is just the opposite of the unlocking bevel; when the upper one section or lower one section retracts on current section, embedding cooperation part of this section props against the unlocking bevel and pushes the pin body to shrink inside and get away from the locating hole; at the same time, the other embedding cooperation part contacts with the locating bevel for locating. While the utility model is in use, as long as other ordinary retracting and positioning device is fixed on the lowest or highest section of the retractable ladder, the whole retractable ladder can be positioned at a retraction state, thus further facilitates carrying of the retractable ladder.

Description

一种伸缩梯的锁定装置 A telescopic ladder locking means

技术领域 FIELD

本实用新型涉及一种梯子,具体涉及一种多梯节构成的伸缩梯上的锁定装置。 The present invention relates to a ladder, particularly relates to a locking means on a multi-ladder section extension ladder configuration. 该锁定装置不仅可将伸缩梯的两相邻梯节锁定在展开状态,还可定位住两相邻梯节的收拢状态。 The locking means of the telescopic ladder only two adjacent ladder section may be locked in the deployed state, the retracted state may also be positioned between two adjacent live ladder section.

背景技术 Background technique

用于登高作业的梯子,广泛应用于建筑、安装、家庭等生产、生活的各个领域。 Climb the ladder for the job, widely used in construction, installation, and other production family, life. 而原始的梯子都是固定式的,很长、体积大,不能折叠,存在着搬运、移动不方便以及收藏占用空间大的缺陷。 While the original ladder is stationary, long, bulky, can not be folded, there is a large handling, movement and convenient collection space defects.

因此,后来出现了伸缩梯,如中国专利公告于2002年2月6日公开的,专利号为95117319.7名称为《可伸缩的梯子》的发明专利,该专利方案中公开了一种可在长度方向上整体收拢、缩短的梯子,它包括n段“冂”型的梯节,每段梯节有一对互相平行并间隔设置的立柱,和一根与立柱上端相连结的横梁;各段梯节的立柱插进紧挨着它且比其低一段的立柱通孔中插接连接;并在各段梯节间设有卡紧装置及松开装置,其卡紧装置及松开装置结构为:卡紧装置为销钉、定位孔及滑块构成的卡销装置,销钉包括颈部及后部的鼓出部分;滑块安装在梯节的横梁中可上下滑动,该滑块上具有第一滑块表面,它与销钉的鼓出部分的颈部侧接触,将销钉从两段梯节立柱的重叠部分的定位孔中退出;滑块上还具有第二滑块表面,它与销钉鼓出部分的另一与颈部相对端接触,推 Therefore, the subsequent emergence of extension ladder, such as China patent announcement on February 6, 2002 open, patent No. 95117319.7 entitled "retractable ladder," the invention patent, the patent discloses a scheme in the longitudinal direction overall collapsed, shortened ladder, comprising ladder sections segment n "Jiong" type, each ladder section has a pair of parallel uprights to each other and spaced apart, and a beam connecting the upper ends of the uprights phase; ladder section segments column inserted next to it and the plug connector section of the post which is lower than the through hole; and a clamping device and a releasing means between the respective sections ladder section, which clamping means and the disengaging device structure: card means tightening device is a bayonet pin, and the positioning hole of the slider configuration, the pin comprises a neck portion and a rear portion of the bulged portion; a slider mounted slidably in the up and down the ladder section beam, the slider having a first slider surface, it contacts the neck swelled portion side of the pin, the pin exits from the overlapping portion of the two positioning holes ladder section column; the second slider further having a slide surface on which the pin bulging portion in contact with the opposite end of the neck, push 销钉嵌入两段梯节立柱重叠部分的孔中;滑块上还作用有推动其向下移动的推压机构;松开装置为一凸台,凸台相对滑块设在相邻下一段梯节的上表面上,当相邻两段梯节收拢时,下一段梯节上的凸台向上顶住本梯节的滑块迫使其上移。 The pin insertion hole portion overlapping two ladder section uprights; acts on the slider is pushed to move the pressing means downward; release means is a boss, the boss relative to the slider section is provided adjacent lower ladder section on the upper surface, when the adjacent two collapsed ladder sections, the lower section of the boss against the slider up ladder section a ladder section in the present forced upward.

对上述专利方案,我们分析后可见,其卡紧装置和松开装置只是在展开状态下起到锁定及解锁的作用,当梯子在收拢状态下是完全不起作用的,即各梯节虽可收拢,但收拢后一提起搬移时,各梯节因重力又会自行展开,这就没能完全达到伸缩梯收拢后便于搬移、收藏的效果。 After the above patent scheme, we analysis shows that the clamping means and release means in a deployed only play the role of locking and unlocking state, when the ladder is completely folded inoperative state, i.e. ladder sections, although each may be Shoulong, but a move to bring back Shoulong, each ladder section due to gravity will unfold itself, which not been able to fully meet the extension ladder collapsed to facilitate the move, the collection results. 为此,我们需要一种可巧妙地将梯节在展开状态及收拢状态都可锁定定位住的锁定装置。 To this end, we need a ladder sections can be cleverly folded and unfolded state in the locked state can live positioning locking device.

发明内容 SUMMARY

本实用新型为解决现有技术的锁定装置只可定位梯节间的展开状态不可定位梯节间的收拢状态的技术问题,提供了一种新式的伸缩梯的锁定装置。 The locking device of the present invention to solve the prior art locking devices can only be positioned between a deployed state not positioned ladder section collapsed state technical problem between the ladder sections, there is provided a new telescopic ladder.

为达到上述目的,本实用新型采用的技术方案是:一种伸缩梯的锁定装置,包括锁销机构,所述锁销机构包括销体、定位孔以及作用于销体上的弹簧,所述销体以其头部朝向立柱伸缩设在梯节的横档中;相邻梯节的立柱在展开状态下与本梯节立柱的重叠部分上对应于销体头部开设上述定位孔,所述弹簧作用力迫使销体头部与定位孔嵌入配合;其特征在于:所述销体上间隔设有一解锁斜面和一定位斜面;相邻的上一梯节或下一梯节的横档上对应于解锁斜面和定位斜面各设有一嵌入配合部;所述解锁斜面和定位斜面均是在销体伸缩方向上前后倾斜的,解锁斜面朝向销体头部侧并向设有对应嵌入配合部的相邻梯节侧倾斜,定位斜面与解锁斜面朝向正相反;当相邻的上一梯节或下一梯节收拢于本梯节上时,其上的一嵌入配合部与解锁斜面相抵配合,推动销 To achieve the above object, the technical solution of the present invention is that: a telescopic ladder locking means comprises a latch mechanism, said latch mechanism comprises a spring pin body, the positioning pin holes and acting on the body, said pin body toward its head upright telescopic ladder section provided on the crosspiece; column adjacent ladder section in an expanded state the overlapping portion and the upper section of this column corresponding to the ladder pin member head portion defines the positioning hole, the spring force forcing the pin member head portion fitted with the positioning hole; characterized in that: said spacer is provided with an unlocking ramp on ramp and a positioning pin body; corresponding to the section adjacent to the previous or next ladder rung ladder section unlocking bevel and each provided with an inclined surface positioning fitting portion fitted; the unlocking bevel and the bevel are positioned in the stretching direction of the front and rear inclined pin member, the pin member toward the unlocking ramp provided adjacent to the corresponding side of the head fitting portion fitted inclined ladder sections positioned opposite facing inclined surface and the unlocking ramp; when adjacent to the previous or next ladder section a ladder section collapsed on this ladder section, a fitting portion fitted on the fitting against the unlocking ramp, the push pin 内缩脱离定位孔,同时其上的另一嵌入配合部与定位斜面接触配合定位。 Retracted from the positioning hole, while the other mating portion on which the insert is positioned in contact with the inclined surface positioned.

上述技术方案包括以下进一步方案:1、上述方案中,进一步较佳方案为:所述解锁斜面和定位斜面在销体中段上面对面设置,以此在销体上形成一嵌入空位;对应于嵌入空位,相邻的上一梯节或下一梯节横档上凸设有一嵌入件,在该嵌入件上设置所述的两嵌入配合部,这两嵌入配合部均为接触斜面,它们与对应解锁斜面和定位斜面互补。 Above technical solution includes the following further embodiment: 1, the above-described embodiment, as a further preferred embodiment: the unlocking bevel bevel face and the positioning pin is disposed on the middle of the body, thereby forming a space fitted on the pin body; embedding slot corresponding to , adjacent to the previous or next ladder section a ladder section is provided with a protruding ledge insert provided two fitting portions fitted on the said insert, the two mating portions are fitted in contact with the inclined surface, which corresponds to the unlocking bevel and bevel complementary positioning.

2、上述方案中,为了进一步提高展开时锁定的可靠性,可采用以下方案:所述销体包括一壳体,壳体后段上容纳有一摆动件,该摆动件的前端面为所述的解锁斜面,摆动件前端的左右两侧上设有凸块,而摆动件的后部经枢轴架设在壳体的左右侧壁间,摆动件的后端部上折弯延伸出一延伸段;所述弹簧为压簧,它从后端抵压在延伸段上,推动销体前伸并且使摆动件前端摆动;对应于摆动件前端摆动后的位置横档表面上开设有一空槽口,空槽口边沿上对应所述凸块设有定位槽;摆动件在摆动状态下,其前端嵌入空槽口中,前端上凸块与定位槽嵌入配合。 2, the above-described embodiment, in order to further improve the reliability of the locking of the deployed, using the following protocol: the pin body includes a housing, a rear housing section accommodating a pivot member, the front end surface of said swing member unlocking ramp, the front end of the swing member is provided on the right and left sides of the bump, the rear swing pivot shaft member bridged between the right and left by the side walls of the housing, the rear end portion of the swing member extends a bent extension; the spring is a compression spring, it abuts against the rear end of the upper extension, pushing the tip of the pin body and reach the swing member swings; defines a space corresponding to the notch on the front end of the swing member swings a position ledge surface, empty corresponding to the notch on the edge of the protrusion is provided with a positioning groove; swing the swing member in a state that the front end embedded in the empty slot, the bump on the front end fitted with mating positioning slot. 这就增加了一销体防脱保护措施,当销体头部前伸入定位孔中梯节成展开锁定状下时,因摆动件会在弹簧作用下摆动,其上凸块与定位槽配合相卡,把销体定位在前伸状态,这时用外力触动销体头部也无防,销体也不会内缩,只有当上一梯节或下一梯节收拢后,其上的嵌入配合部与摆动件前端的解锁斜面相抵时,将摆动件下压,使凸块脱离定位槽,此定位作用才自动解除。 This increases a retaining pin body protection, when the front pin member extending into a positioning hole in the head portion to expand the locked ladder section, the swing member swings due to the spring action, on which projections cooperate with the positioning groove card phase, the pin member is positioned in the protrusion state, when an external force with no head portion thereof touches pin anti pin member is not retracted, and only when the previous or next ladder section collapsed ladder section, on which when fitted with the front end portion of the swing member against unlocking ramp, the lower pressure swing member, the bumps out of the positioning groove, this effect was positioned automatically released.

3、上述方案中,各梯节伸缩时,销体头部因弹簧力会抵在立柱内壁面上滑动,为了减少磨擦,避免磨损,可在销体头部上设有一滚轮,通过滚轮将滑动磨擦变为滚动磨擦,减少销体头部及立柱内面上的磨损。 3, the above-described embodiment, when each of the telescopic ladder, the head of the pin member against the spring force of the column will be the inner wall surface of the slide, in order to reduce friction and avoid wear, the rollers may be provided with a head on the pin body, by sliding the roller friction into rolling friction reduces wear pin member and the inner surface of the head portion of the column.

4、上述方案中,所述“展开”是指两梯节的横档彼此相距一定(预先设定的)间距的状态;“收拢”是指两梯节的横档互相接触时的状态。 4, the above-described embodiment, the "expanded" state refers to a certain distance (preset) pitch ladder section two rungs each other; "folded" refers to the state when the two ladder rung sections contact with each other.

5、上述方案中,所述解锁斜面与定位斜面可以相互平行,也可不平行,最佳是两者相平行,一者斜度在45°左右,另一者在135°左右。 5, the above-described embodiment, the inclined surface and the unlocking ramp can be positioned parallel to each other, parallel or not, most preferably two parallel, one slope of about 45 °, the other at about 135 °.

本实用新型的使用时的安装位置及工作原理如下:使用时本实用新型的安装位置依伸缩梯整体结构情况而定,一般来说,对于“冂”型的梯节从上至下嵌套而成的伸缩梯,安装时是将锁销机构设置在横档的端部中,并且销体上的解锁斜面及定位斜面均应外露于横档的下表面上;而相对的嵌入件应凸设于相邻下一梯节的横档上表面上。 The utility installation location and operation principle of the novel use as follows: When using the present invention by mounting a position where the telescopic ladder unitary structure may be, in general, for the ladder section "Jiong" top-down type nesting into the extension ladder, the installation latch mechanism is provided at the end of the rung, and the unlocking ramp incline and positioned on the pin body should be exposed on the lower surface of the crosspiece; inserts should be relatively protruding adjacent the upper and lower surface of the ladder rung section. 而对于“ㄩ”型的梯节从上至下嵌套而成的伸缩梯,安装时是将锁销机构设置在横档的端部中,并且销体上的解锁斜面及定位斜面均应外露于横档的上表面上;而相对的嵌入件应凸设于相邻上一梯节的横档的下表面上。 For ladder section "ㄩ" top-down type made of nested telescopic ladder, the installation latch mechanism is provided at an end portion of the crosspiece, and the unlocking ramp incline and positioned on the pin body should be exposed on the upper surface of the crosspiece; shall insert the opposing projections provided on the lower surface of the adjacent section of a ladder rung.

这样收拢时,如“冂”型梯节的伸缩梯是底部的梯节一段段相对上移收拢,而“ㄩ”型梯节的伸缩梯是顶部的梯节一段段相对下移收拢,不管是哪种伸缩梯,相邻的前一梯节收拢后其横档靠向本梯节横档,其上的嵌入件都会与在本梯节的销体上解锁斜面配合,使销体内缩,展开状态的锁定被解锁,本梯节也随前一梯节移动,在解锁的同时,嵌入件上的定位嵌入部也嵌入销体中与定位斜面配合,并且因本梯节解锁移动后其销体头部与相邻梯节的定位孔已相错开,销体头部就抵在相邻梯节的立柱内面上,销体无法再向外伸出,使嵌入件上的定位嵌入部与定位斜面保持在配合状态,因定位斜面为倒钩状斜面,嵌入件类似于钩在定位斜面上,使本梯节与前一梯节定位在收拢状态,只有当后一梯节复又展开时,定位孔重与销体头部相对准,销体复又外伸嵌入 When so folded, such as "Jiong" -type ladder section extending ladder section is a section of the bottom of the ladder move relative retracted, and "ㄩ" type of extension ladder is a ladder section a ladder section relative to a section of the top folded down, either which telescopic ladder, a ladder section adjacent front rail toward its retracted after this rung ladder section, the insert will unlocking ramp on which the pin member fitted in this ladder section, the pin body shrink, expand lock state is unlocked, the present ladder section also with previous ladder sections move simultaneously unlocked, the positioning fitting portion on the insert is also embedded pin body is fitted with the positioning ramp, and because the present ladder section unlocking movement thereof pin member head positioning hole adjacent ladder section is displaced relative to the pin member head comes into abutment in the column face adjacent ladder section, the pin body can no longer outwardly, the positioning portion fitted with the insert positioned on the inclined surface held in the fitted state, due to a barb locating slope ramp, the insert is positioned on the inclined surface similar to the hook, so that the front ladder section and the ladder section positioned in a retracted state, only when the latter complex and expanded ladder sections, positioning body weight and head pin holes aligned, and outwardly extending pin fitted cOMPLEX 位孔中,同时定位斜面与嵌入件上的定位嵌入部也自动脱离,本梯节与前一梯节的收拢定位解除。 Bit bore while positioning the positioning portion fitted on the inclined surface and the insert is automatically disengaged, the ladder section is released and positioned before a collapsed ladder section.

经上述分析,可见本实用新型与现有技术相比具有下列优点:1、本实用新型不仅可以可靠地锁定住两梯节的展开状态,还可相对定位住两梯节的收拢状态,使用时只要在伸缩梯的最底部一梯节或最上部一梯节上设置上其他一般的收拢定位装置,即可将整个伸缩梯定位在收拢状态,这样更便于搬移,另一方面这也使伸缩梯在悬挂状态下也可收拢,使伸缩梯作为可收拢的阁楼梯悬挂着使用成为了可能。 1, the present invention is not only securely locked stay unfolded state two ladder sections, but also the relative positioning of two live ladder section collapsed state, using: Following the above analysis, the present invention can be seen with the prior art has the following advantages over the As long as the very bottom of the telescopic ladder section is provided on a ladder or a uppermost ladder section collapsed on other general positioning means it can be positioned at the entire extension ladder folded state, which is more easy to move, on the other hand it also makes telescopic ladder also foldable in a suspended state, the ladder as a telescopically collapsible attic stairs hanging use as possible.

2、本实用新型操作方便,本实用新型需展开时,只要解开最底部一梯节或最上部一梯节的收拢定位装置,其他各梯节上的收拢定位即会一节节联动地自动解开,整个梯子就一节节地逐一展开了。 2, to facilitate the operation of the present invention, the time required to expand the present invention, as long as the unlock a bottommost ladder section or a retracted positioning means uppermost ladder section, positioned on each other collapsed ladder section i.e. a steadily linkage will automatically unlock the entire ladder on a losing one by one started.

3、本实用新型功能强、又结构简单成本低低廉,本实用新型是以一锁定装置达到了两个状态的锁定定位功能,其结构上较简单,其制作成本与现有的单一功能的锁定装置相比,基本持平甚至还略有下降。 3, the present invention features a strong, inexpensive and simple structure and low cost, the present invention is to achieve a locking means locking the positioning functions of the two states, on which the structure is relatively simple, the production cost of the conventional single-function locking compared device, essentially flat and even declined slightly.

附图说明 BRIEF DESCRIPTION

附图1为利用本实施例的伸缩梯整体结构正面示意图,图中表示展开状态;附图2为利用本实施例的伸缩梯整体结构主体示意图,图中表示收拢状态;附图3为利用本实施例的伸缩梯中局部三段梯节的伸缩示意图;附图4为附图3中A处动作状态示意图一,图中表示下部的梯节立柱上的定位孔与中部梯节上的销体头部未对准,中部的梯节成收拢定位的状态;附图5为附图3中A处动作状态示意图二,图中表示下部的梯节立柱上的定位孔与中部梯节上的销体头部对准,中部的梯节马上可以解除定位展开的状态;附图6为利用本实施例的伸缩梯中局部三段梯节的连接结构立体示意图;附图7为利用本实施例的伸缩梯中局部的一段梯节的分解示意图;附图8为附图7中B处局部放大示意图;附图9为本实施例中销体的示意图;附图10为本实施例中销体的分解示意图;附图11为利 Figure 1 is a front schematic view of the overall configuration extending ladder with the present embodiment, there is shown an expanded state; Figure 2 is an overall configuration of the body with the present extension ladder schematic of an embodiment, there is shown a collapsed state; Figure 3 is the use of the present three sections telescopic ladder section schematic partial extension ladder in the embodiment; operating state 4 at a is a schematic drawings FIG. 3, there is shown a positioning pin holes on the body of a lower ladder section a ladder section in the middle column and head misalignment middle ladder section positioned into a collapsed state; Fig. 5 is a reference operating state at a 3 Diagram II, there is shown a positioning pin holes on a lower ladder section a ladder section in the middle column and align the head body, the middle ladder section positioned immediately be released unfolded state; Figure 6 is a connecting structure using the present embodiment of the telescopic ladder three-stage ladder section partial perspective view of the embodiment; Figure 7 for the use according to the present embodiment partial exploded view of the telescopic ladder section ladder section; 8 an enlarged schematic view at B in figures 7 to the accompanying drawings; in the schematic diagram of the pin body 9 of the drawings of the present embodiment; Fig. 10 embodiment of the present embodiment the pin member an exploded view; Figure 11 Tametoshi 用本实施例的伸缩梯的最顶端两段梯节部分的结构示意图;附图12为利用本实施例的伸缩梯中相临两梯节的立柱截面示意图。 Telescopic ladder schematic configuration of the present embodiment the top portion of the two ladder section; Figure 12 is a schematic sectional view of the telescopic ladder uprights with the present embodiment of two adjacent ladder section embodiment.

以上附图中:1、梯节;2、立柱;3、横档;4、嵌条;5、导槽;6、锁销机构;7、销体;8、定位孔;9、弹簧;10、解锁斜面;11、定位斜面;12、嵌入配合部;13、嵌入配合部;14、嵌入空位;15、嵌入件;16、壳体;17、摆动件;18、凸块;19、枢轴;20、延伸段;21、空槽口;22、定位槽;23、滚轮;24、弹性定位片;25、凸起;26、定位卡孔;27、安装架;28、辅助拉簧;29、伸缩梯;30、阻挡块;31、调节孔;32、限位块;33、凸起片。 The above figures: 1, ladder sections; 2, column; 3, crosspiece; 4, molding; 5, guide grooves; 6, a latch mechanism; 7, pin body; 8, positioning holes; 9 spring; 10 unlocking ramp; 11, positioning the inclined surface; 12, fitting portions fitted; 13, fitting portions fitted; 14, embedding space; 15, insert member; 16, a housing; 17, the swing member; 18, a bump; 19, pivot ; 20, extension; 21, empty slots; 22, positioning grooves; 23, roller; 24, the resilient positioning pieces; 25, projection; 26, card positioning hole; 27, mounting bracket; 28, auxiliary tension spring; 29 , extension ladder; 30, stopper; 31, adjusting hole; 32, stopper; 33, projecting pieces.

具体实施方式 detailed description

下面结合附图及实施例对本实用新型作进一步描述:实施例:参见附图1、附图2所示,一利用了本锁定装置的可作为阁楼梯使用的伸缩梯29,它具体采用铝型材制成,并可以作为伸缩阁楼梯使用,其伸缩结构由n段梯节1拼接构成,n为≥3的正整数,相邻两段梯节1之间设有锁定装置,每段梯节1由两根平行设置的立柱2和一根连接在两根立柱2下端之间的横档3构成“”形结构;所述2n个立柱2采用截面相同型材,其截面外侧前后沿上设一对滑槽5,而截面内侧的前后沿上设一对滑筋4(详见附图12所示的立柱截面);同一段梯节1的两根立柱2左右对称布置,各梯节1的两立柱2外侧的滑槽5与下一段梯节1的两立柱2内侧的滑筋4沿立柱2长度方向滑动连接,以此n段梯节1自上而下滑动嵌套构成伸缩结构。 In conjunction with the following drawings and embodiments of the present invention is further described as: Example: Referring to Figure 1, shown in Figure 2, a telescopic ladder 29 using the locking device may be used as an attic stairs, which specifically uses aluminum is made and used as a telescopic attic stairs, whose structure consists of n stages telescopic ladder sections splice 1, n is a positive integer of ≥3, the locking means is provided between an adjacent two ladder sections, each ladder section 1 constitutes "" structure bounded by two parallel uprights 2 and a connector arranged between two uprights 2 lower crosspiece 3; 2n th column 2 using the same cross-sectional profile, which longitudinal section along the outer side is provided on a 5 of the chute, back and forth along the cross section is provided inside one pair of sliding ribs 4 (see column 12 cross section shown in the drawings); symmetrically arranged about the same period of ladder sections of the two shafts 21, each ladder section 1 two pillar 2 outside the chute section 5 and the lower ladder section inside the two uprights 2 1 2 slide along the longitudinal direction of the ribs 4 pillar slidably connected, in order from top to bottom n stages ladder sections sliding telescopically nested together configuration. (详见附图3、6、7所示)。 (See shown in the drawings 3,6,7). 并且,一对滑槽5与一对滑筋4配合,使各段梯节1的立柱2的与相邻下一段梯节1的立柱2间仅存在一沿长度方向上滑动的自由度(详见附图12所示的立柱截面)。 The pair of chute 5 and a pair of slide bars 4 with the uprights 1, each segment 2 of the ladder section a ladder section 1 adjacent columns in a period between 2 to slide on the presence of only a degree of freedom in the longitudinal direction (in detail see section shown in the drawings column 12).

参见附图3、4、5、7所示,在伸缩梯29中各梯节间设置本实施的锁定装置,该锁定装置的具体结构如下:它由一设置在梯节横档3中的锁销机构6及一对应凸设在相邻上一梯节横档3下表面上的嵌入件15配合构成;所述锁销机构6包括销体7、定位孔8以及作用于销体7上的弹簧9,所述销体7头部朝向立柱2伸缩设在梯节1的横档3中,相邻梯节1的立柱2在展开状态下与本梯节1立柱2的重叠部分上对应于销体7头部开设上述定位孔8,所述弹簧9作用力迫使销体7头部与定位孔8嵌入配合;并且,销体7一侧上设有凸起片33,通过该凸起片33卡在立柱2对销体7外伸状态进行限位(见附图10所示)。 3,4,5,7 Referring to the drawings, in the telescopic ladder 29 is disposed between each of the ladder sections of the locking means of the present embodiment, the specific structure of the locking device is as follows: it is provided by a ladder rung in section 3 locks a pin mechanism 6 and the corresponding protrusion disposed on the three ladder sections adjacent a surface of the crosspiece constituting the insert 15 fit; the detent mechanism 6 includes a pin member 7, positioning holes 8 and 7 acting on the pin member spring 9, the pin 7 towards the column head 2 provided in the telescopic ladder rung section 3 of adjacent ladder section 2 of the column 1 in the overlapping portion to expand with 1 column 2 of the present state corresponds to the ladder section pin head body 7 defines the positioning hole 8, the biasing force of the spring 9 forces the head portion 7 and the positioning hole fitted with the pin body 8; and, projecting pieces 33 provided on the pin body 7 side, by the projecting pieces 33 card extension state 7 post 2 pair of pin body stopper (see FIG. 10).

参见附图9及附图10所示,所述销体7由一壳体16及壳体16中从前向后容纳的滚轮23、阻挡块30及摆动件17构成;所述销体头部中设置滚轮,用滚轮抵在立柱2内面上滚动,减少磨擦力;阻挡块30固定嵌设在壳体16中,而摆动件17的后部经枢轴19架设在壳体16的左右侧壁间,摆动件17的后端部上向下折弯延伸出一延伸段20;摆动件17头部与阻挡块30留有一插入空位14;摆动件17的前端上设有解销斜面10,而阻挡块30的后端上设有定位斜面11,解锁斜面10朝向前端销体7头部侧并向上方倾斜,而定位斜面11与解锁斜面10朝向正相反,它朝向后端销体7的尾部并向下方倾斜;解锁斜面10与定位斜面11相平行,其斜度为40°及135°。 Referring to figures 9 and 10 shown in the drawings, the pin 7 includes a housing 16 and a housing 16 receiving the rearwardly from the front roller 23, the stopper member 30 and the pivot 17 constitutes; the pin member head setting roller, with the roller rolling against the inner surface of the pillar 2, reduce friction; stop block 30 fixed to the left and right side walls embedded in the housing 16, and the rear swing member 17 via a pivot 19 in the housing 16 between the erected , the rear end portion of the swing member 17 is bent downwardly extending extension 20 a; 17 a head pivot member and the stopper 30 is inserted into a gap 14 left; inclined surface 10 is provided on the distal solution pivot pin 17, and the barrier a positioning block 30 on the rear end inclined surface 11, the inclined surface 7 of the head side of the unlocking pin 10 toward the distal end thereof and inclined upward, the unlocking ramp 11 positioned toward the inclined surface 10 on the contrary, it toward the rear end of the tail pin 7 and inclined downward; unlocking ramp 10 and the ramp 11 is positioned parallel to its slope of 40 ° and 135 °. 而横档3上对应销体7上表面设有空槽口21,使摆动件17及阻挡块30均露于横档3的上表面上。 3 and the corresponding crosspiece pin body surface 7 is provided with empty slots 21, the swing member 17 and the stopper 30 are exposed to the upper surface of the crosspiece 3. 在此阻挡块30为一独立件,采用的是软质的铝材,当然不用阻挡块,而直接从壳体16上延伸出斜片,在其上设定位斜面11也可。 The stopper 30 is a separate member, is used in soft aluminum, of course, without stopper, extend from the swash plate housing 16, which may be set at 11 bits ramp.

见图3所示,与上述锁销机构6相对应的嵌入件15是与销体7上的插入空位14相匹配的,嵌入件15上还对应解锁斜面10与定位斜面11设有嵌入配合部12及13,该嵌入配合部12及13均为与解锁斜面10与定位斜面11对应互补的斜面;当相邻的上一梯节1收拢于本梯节1上时,嵌入件15嵌入插入空位14中,其上的嵌入配合部12与解锁斜面10相抵配合,推动销体7内缩脱离定位孔8,同时其上的另一嵌入配合部13与定位斜面11接触配合。 Figure inserted, said lock pin mechanism 6 and the corresponding insert 15 is shown with the pin 37 on the body 14 matches the space, but also the corresponding insert fitting portion fitted with the positioning unlocking ramp 11 inclined surface 10 is provided on the 15 12 and 13, 12 and 13 are embedded in the unlocking mating inclined surface portion 10 and the inclined surface 11 is positioned corresponding to a complementary inclined plane; when adjacent in a collapsed ladder section a ladder on a section, the insert 15 is inserted into a gap insert 14, the insert fitting portion 12 thereon with the unlocking ramp 10 against push pin body reduced from the positioning hole 78, while the other thereof is embedded in the contact mating portion 13 mating with the positioning ramp 11. 在此,是采用了一个嵌入件15,在嵌入件15上既设嵌入配合部12又设嵌入配合部13,以此同时与解锁斜面10及定位斜面11配合,此为最佳方案,但是,实际中也可用采用两个嵌入件,一嵌入件对应配合解锁斜面10,一嵌入件对应配合定位斜面11。 Here, is the use of an insert 15, in the preferred embodiment both insert member 15 is provided with the fitted portion 12 and is provided with the embedded portion 13, 11 in order simultaneously with the unlocking ramp 10 and the positioning ramp, this is, however, in practice two inserts may also be employed, with an insert corresponding to the unlocking ramp 10, an insert with a corresponding inclined surface 11 is positioned.

参见附图3、附图8、附图9所示,所述摆动件17前端的左右两侧上设有凸块18,而所述弹簧9为压簧,它从后端抵压在延伸段20上,推动销体7前伸并且使摆动件17前端上摆;而空槽口21的沿口上对应凸块18设有定位槽22,摆动件17在上摆状态下,其前端嵌入空槽口21中,前端上凸块18与定位槽22嵌入配合,以此将销体7在前伸状态下定位,防止销体7头部受外力作用后发生误动作,增加了展开状态锁定的可靠性。 Referring to Figure 3, Figure 8, illustrated in Figure 9, the swing left and right sides of the front end member 17 is provided with projections 18, and the spring is a compression spring 9, which abuts against the rear end of the extension 20, push pin 7 and the protrusion 17 on the front end of the pendulum swing member; empty slots and a corresponding bead 21 on the bosses 18 provided with the positioning groove 22, the swing member 17 placed on the state, the distal end thereof fitting recess in opening 21, a front end 18 and the bumps embedded with the positioning groove 22, thereby the pin member 7 is positioned in the protrusion state, to prevent malfunction by the external force after the pin head 7, increasing the reliability of the locking deployed state sex.

参见附图3、6、7、12所示,整个伸缩梯29的立柱2均是采用扁平状的杆件型材制成,它们的厚度都较薄,其中,除最顶部一梯节1外,其它各梯节1的立柱2结构均相同,均是:立柱2内侧壁的前后沿上沿立柱2长度方向设嵌条4,而外侧壁上的前后沿上设有导槽5;上下两梯节1连接时,下段梯节1内侧壁上的嵌条4对应嵌入上段梯节1的导槽5中,从而构成滑动连接(详见附图12所示的立柱截面)。 Referring to the drawings shown 3,6,7,12, the whole column 29 is telescopic ladder 2 are employed made flat profile bars, which are relatively thin thickness, wherein, in addition to a top-most outer ladder sections 1, each of the other ladder sections 1 column 2 are the same configuration, are: 2 disposed along the longitudinal direction of the molding 4 on the front and rear uprights along the inner side wall of the column, while along the outer side wall of the longitudinal guide groove 5 is provided; two vertical ladder when the section 1 is connected to the lower molding a ladder sections corresponding to the inner wall of the insert 4 upper ladder section 1 of the guide groove 5 so as to constitute a sliding connection (see column cross-section 12 shown in the drawings).

参见附图1及附图2所示,为了使用上更方便,整体伸缩梯29中,最顶部一段梯节1的横档3中没有设置锁销机构6,而最底部两段梯节3的横档3中也没有设置锁销机构6及嵌入件15,其他中部各梯节1上均设置了锁销机构6及嵌入件15。 Referring to the drawings Figures 1 and 2, in order to use the more convenient, the whole telescopic ladder 29, the topmost section of the rung ladder section 3 is not provided in a latch mechanism 6, while the two bottommost ladder section 3 no crosspiece 3 is provided a latch mechanism 6 and the insert 15, the center of each other on a ladder sections are provided with locking pin means 6 and the insert 15. 这样在收拢状态下,最底部两段梯节1上应设置其它的弹性定位机构进行定位,例如:一者横档3向另一者的横档伸出一弹性定位片24,该弹性定位片24上设有一凸起25,相对另一者的横档上对应凸起25设有一定位卡孔2,当两者呈收拢状态时,弹性定位片24上的凸起25嵌入定位卡孔26中定位。 In this folded state, two bottommost ladder section should be disposed on the other one elastic positioning means for positioning, for example: a crosspiece 3 by a resilient positioning tab 24 projecting towards the other ledge, the resilient positioning tab 24 is provided with a projection 25, corresponding to the other of the opposing ledge 25 is provided with a positioning projection engaging hole 2, when both were collapsed state, the positioning projections 25 fitted in the locking hole 26 is positioned on the elastic sheet 24 positioning.

参见附图1及附图2所示,本伸缩梯后部的左右两侧各设有一辅助拉簧28,该辅助拉簧28连接在最顶部的梯节1和从底部倒数第三段的梯节1之间。 Referring to the drawings Figures 1 and 2, the rear left and right sides of each of the present extension ladder is provided with an auxiliary tension spring 28, the auxiliary tension spring 28 is connected at the very top of the ladder section and the ladder from the bottom of the third last paragraph 1 between section 1. 并且,在最顶端一段梯节1上通过左右方向设置的转轴铰接在一安装架27上,以此使用时,可将安装架垂直安装在阁楼口的侧壁上,使用时如图1所示的展开状态,从阁楼直接伸至地面;不使用时可用推杆向上推动本伸缩梯,伸缩梯即从顶部往下一节节地连动收拢,直至最底部两段梯节间的弹性定位机构也锁上为止,此时整个伸缩梯如图2所示定位在收拢状态不会自行展开,然后可再上翻伸缩梯,使伸缩梯翻入阁楼口中,关上阁楼门本伸缩梯即被隐藏起来。 And, when on a mounting bracket 27, thereby the hinge shaft disposed in the horizontal direction by the top section of the ladder sections 1, may be vertically mounted on the mounting bracket sidewalls attic opening, shown in Figure 1 using expanded state, directly from extending to the attic floor; available push the plunger is not used up to the present extension ladder, a telescopic ladder i.e. down steadily interlocked folded from the top, until the elastic positioning means between the two bottommost ladder section be locked, at which point the entire extension ladder positioned as shown in FIG. 2 itself does not expand in the retracted state, then turned on again telescopic ladder, telescopic ladder loft plunged into the mouth, closing the door of the present loft retractable ladder hidden i.e. .

参见附图11所示,最顶部第一段梯节1上没有设置锁销机构6,而在其立柱2上开设了一排调节孔31,在其中一调节孔31上固定有限位块32,第二段梯节1的立柱滑动连接在第一段梯节1上,第二段梯节1的立柱2顶端的端件与限位块32配合,以此通过调节限位块32在第一段梯节1上的位置,即可按使用场合层高的需要,调节伸缩梯29展开后的整体长度。 See, the upper ladder section topmost first segment 11 1 No accompanying drawings latch mechanism 6 is provided, at its upright 2 and defines a row of adjusting holes 31, in which an adjusting block 32 is fixed on a limiting aperture 31, column 1 second paragraph ladder section slidably connected to the first section a ladder section 1, the end member 32 and the stopper 2 with the top of the column 1 second paragraph ladder section, by adjusting the order of the first stopper 32 1 position on the ladder section segments, can be used as desired storey case, to adjust the overall length of the telescopic ladder 29 is expanded.

上述实施例只为说明本实用新型的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本实用新型的内容并据以实施,并不能以此限制本实用新型的保护范围。 To illustrate the above-described embodiments of the present invention and the characteristics of the technical concept, the aim is to just let the person skilled in the art to understand the invention and data content to implement, and thus can not limit the scope of protection of the present invention. 凡根据本实用新型精神实质所作的等效变化或修饰,都应涵盖在本实用新型的保护范围之内。 Where an equivalent change or modification made to the spirit of the invention should fall within the scope of protection of the present invention.

Claims (4)

  1. 1.一种伸缩梯的锁定装置,包括锁销机构[6],所述锁销机构[6]包括销体[7]、定位孔[8]以及作用于销体[7]上的弹簧[9],所述销体[7]以其头部朝向立柱伸缩设在梯节的横档[3]中,相邻梯节[1]的立柱[2]在展开状态下与本梯节[1]立柱[2]的重叠部分上对应于销体[7]头部开设上述定位孔[8],所述弹簧[9]作用力迫使销体[7]头部与定位孔[8]嵌入配合;其特征在于:所述销体[7]上间隔设有一解锁斜面[10]和一定位斜面[11];相邻的上一梯节或下一梯节的横档[3]上对应于解锁斜面[10]和定位斜面[11]各设有一嵌入配合部[12、13];所述解锁斜面[10]和定位斜面[11]均是在销体[7]伸缩方向上前后倾斜的,解锁斜面[10]朝向销体[7]头部侧并向设有对应嵌入配合部[12]的相邻梯节[1]侧倾斜,定位斜面[11]与解锁斜面[10]朝向正相反;当相邻的上一梯节[1]或下一梯节[1]收拢于本梯节[1]上时,其上 An extension ladder locking means comprises a detent mechanism [6], the latch mechanism [6] includes a pin body [7], the positioning hole [8] and the spring acting on the pin body [7] on [ 9], the pin body [7] telescopic uprights with its head toward the pillar provided in the rung ladder section [3], the adjacent ladder sections [1] [2] in an expanded state ladder sections present [ 1] corresponding to the column [2] is an overlapping portion of the pin body [7] defines the head of the positioning hole [8], a spring [9] to force the biasing force of the pin body [7] the head positioning hole [8] embed mating; wherein: said spacer has a pin body [7] an unlocking ramp [10] and a positioning ramp [11]; corresponding to the section adjacent to the previous or next ladder rung ladder section [3] unlocking ramp [10] and the positioning ramp [11] are each provided with a fitting portion fitted [12,13]; the unlocking ramp [10] and the positioning ramp [11] are inclined in the front and rear pin [7] stretching direction , the unlocking ramp [10] toward the pin body [7] to the side of the head provided with a corresponding mating insert portion [12] adjacent ladder section [1] side inclined positioning ramp [11] unlocking ramp [10] toward on the contrary; when adjacent to an upper ladder section [1] or a next ladder sections [1] to gather [1] on this ladder section, which 一嵌入配合部[12]与解锁斜面[10]相抵配合,推动销体[7]内缩脱离定位孔[8],同时其上的另一嵌入配合部[13]与定位斜面[11]接触配合定位。 An insert fitting portion [12] and the unlocking ramp [10] fitted against, push pin volume contraction from [7] positioning hole [8], while the other mating portion which is embedded in the [13] with the positioning ramp [11] contacts with positioning.
  2. 2.根据权利要求1所述的一种伸缩梯的锁定装置,其特征在于:所述解锁斜面[10]和定位斜面[11]在销体[7]中段上面对面设置,以此在销体[7]上形成一嵌入空位[14];对应于嵌入空位[14],相邻的上一梯节或下一梯节横档[3]上凸设有一嵌入件[15],在该嵌入件[15]上设置所述的两嵌入配合部[12、13],这两嵌入配合部[12、13]均为接触斜面,它们与对应的解锁斜面[10]和定位斜面[11]互补。 A telescopic ladder according to claim 1 of the locking device, wherein: said unlocking ramp [10] and the positioning ramp [11] In the pin body [7] is provided on the middle of the face, thereby the pin member formation [7] an insert slot [14]; embedding slot corresponding to [14], adjacent to the previous section or the next ladder rung ladder section [3] is provided with a protrusion on the insert [15], which is embedded in member [15] provided on said two insert fitting portion [12,13], fitted with two portions [12, 13] are in contact with the inclined surface, the inclined surface thereof with corresponding unlocking [10] and the positioning ramp [11] complementary to .
  3. 3.根据权利要求1所述的一种伸缩梯的锁定装置,其特征在于:所述销体[7]包括一壳体[16],壳体[16]后段上容纳有一摆动件[17],该摆动件[17]的前端面为所述的解锁斜面[10],摆动件[17]前端的左右两侧上设有凸块[18],而摆动件[17]的后部经枢轴[19]架设在壳体[16]的左右侧壁间,摆动件[17]的后端部上折弯延伸出一延伸段[20];所述弹簧[9]为压簧,它从后端抵压在延伸段[20]上,推动销体[7]前伸并且使摆动件[17]前端摆动;对应于摆动件[17]前端摆动后的位置横档[3]表面上开设有一空槽口[21],空槽口[21]边沿上对应所述凸块[18]设有定位槽[22];摆动件[17]在摆动状态下,其前端嵌入空槽口[21]中,前端上凸块[18]与定位槽[22]嵌入配合。 The locking device as claimed in claim a telescopic ladder according to claim 1, wherein: said pin body [7] comprises a housing [16] housing [16] has a pivot receiving member [17 on the rear section ], the oscillating member [17] is a front end surface of the unlocking ramp [10], provided with the bumps [18 on [17] the front end of the left and right side swing], and the swing member [17] through the rear pivot [19] erected between housing [16] of the left and right side walls, the pivot member [17] extending out of the rear end portion of a folded extension [20]; the spring [9] is a compression spring, which from the rear end is pressed against the extension [20] on the push pin body [7] and reach the swing member [17] the front end of the swing; corresponding to the swing member [17] of the front end position of the pivot rung after [3] on the surface defines an empty slots [21], empty slots [21] corresponding to the bumps [18] has a locating groove [22] on the rim; pivot member [17] in the pivoted state, the front end insert empty slots [ 21], the bumps [18] and the positioning groove [22] fitted with a front end.
  4. 4.根据权利要求1所述的一种伸缩梯的锁定装置,其特征在于:所述销体[7]头部上设有一滚轮[23]。 A telescopic ladder according to claim 1, wherein said locking means, characterized in that: said body is provided with a pin [7] a roller head [23].
CN 200620126632 2006-10-30 2006-10-30 Locking device for telescopic lalder CN200971751Y (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN 200620126632 CN200971751Y (en) 2006-10-30 2006-10-30 Locking device for telescopic lalder

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010017684A1 (en) * 2008-08-14 2010-02-18 Wang Wanxing Extending ladder
CN101434332B (en) 2008-11-13 2011-02-02 北京通旭机电设备有限公司;第二炮兵工程设计研究院 Locating, self-locking and unlocking method and apparatus for storehouse storage and transportation platform
CN102003136A (en) * 2010-10-28 2011-04-06 王万兴 Locking structure for telescopic ladder
CN102536105A (en) * 2011-12-31 2012-07-04 长沙中联消防机械有限公司 Engineering vehicle and scarcement locking system thereof
WO2013035094A1 (en) 2011-09-11 2013-03-14 Omri Gilad Telescopic ladder and locking mechanism thereof
WO2016079516A1 (en) * 2014-11-18 2016-05-26 Michael Beard Extendable access device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010017684A1 (en) * 2008-08-14 2010-02-18 Wang Wanxing Extending ladder
CN101434332B (en) 2008-11-13 2011-02-02 北京通旭机电设备有限公司;第二炮兵工程设计研究院 Locating, self-locking and unlocking method and apparatus for storehouse storage and transportation platform
CN102003136A (en) * 2010-10-28 2011-04-06 王万兴 Locking structure for telescopic ladder
WO2012055159A1 (en) * 2010-10-28 2012-05-03 宁波兴富工具有限公司 Locking structure for extensionableladder
CN102003136B (en) 2010-10-28 2012-09-12 王万兴 Locking structure for telescopic ladder
WO2013035094A1 (en) 2011-09-11 2013-03-14 Omri Gilad Telescopic ladder and locking mechanism thereof
US9151114B2 (en) 2011-09-11 2015-10-06 Gilad Omri Telescopic ladder and locking mechanism thereof
CN102536105A (en) * 2011-12-31 2012-07-04 长沙中联消防机械有限公司 Engineering vehicle and scarcement locking system thereof
WO2016079516A1 (en) * 2014-11-18 2016-05-26 Michael Beard Extendable access device

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