Support structure of self-standing ladder and ladder thereof
A self-supporting, ladder technology, applied in the direction of ladders, building structures, buildings, etc., can solve the problems of complex structure and difficult to further reduce the manufacturing cost, and achieve the effects of low material consumption, simple structure, and improved durability and safety.
Inactive Publication Date: 2009-09-02
TIANJIN JINMAO GROUP
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Problems solved by technology
[0005] When the self-supporting ladder is opened, the main ladder is supported by the auxiliary ladder to stand on the ground in a herringbone shape. In the known technology, the auxiliary ladder and the main ladder are generally folded through the hinged structure, and the stable support of the auxiliary ladder to the main ladder is realized through the locking structure. The structure is complex, and the manufacturing cost is difficult to further reduce
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[0033] Below in conjunction with preferred embodiments, the specific implementation, features and effects provided by the present invention are described in detail as follows; for the purpose of simplicity and clarity, the description of known technologies is appropriately omitted below to avoid unnecessary details Affect the description of this technical solution.
[0034] Such as Figure 1-4 As shown, a self-supporting ladder, including but not limited to two-stage pedals or three-stage pedals, includes a main ladder 1 supported by an auxiliary ladder 2, and the auxiliary ladder and the main ladder are installed in a foldable configuration, wherein: the auxiliary ladder The junction with the main ladder is fixed with a supporting element 3 by fasteners 22, and two supporting elements are installed at the ends of the two parallel auxiliary ladder frames 21 and 21' in the auxiliary ladder, correspondingly supporting the two auxiliary ladder frames in the main ladder. two para...
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A self-standing ladder is provided, which relates to the supporting structure between a main ladder and a secondary ladder as well as the ladder for that, and comprises a main ladder supported by the secondary ladder. On the main ladder, treadles are distributed evenly. Wherein, at the joining site between the secondary and the main ladder, the supporting elements are fixedly mounted, which comprise an assembling part that is fixedly mounted with the frame of the secondary ladder, and a plug-in supporting part that is joined with the frame of the main ladder. The plug-in supporting part is provided with an accommodating groove that matches with the outer edge of the frame of the main ladder, and forms a supporting base bearing the ladder frame and constructs two identical elastic embracing arms that embrace the ladder frame; between the ends of the two elastic embracing arms, a notch is formed for accommodating the main ladder frame into the groove and holding the ladder frame. The ladder in the invention is of simple structure, safe and steady, the structure is more optimal, and the invention can effectively reduce the manufacturing cost, is more suitable for industrial application. The reasonable setting of the supporting elements can make the ladder more steady and safe and the manufacturing cost more cheap.
Description
technical field [0001] The invention belongs to the field of ladders, in particular to a supporting structure between a main ladder and an auxiliary ladder of a self-supporting ladder and a ladder thereof. Background technique [0002] Known technology, such as disclosed Chinese patent 00814270.X has a collapsible step stool with leg locks and handles, wherein a step stool includes a movable rear leg that contains a front leg and a movable relative to the front leg A collapsible frame, a carrying handle supported on a leg for rotational movement about a pivot axis. A stop is connected to the handle and moves with the handle about the pivot axis to lock the front leg to the rear leg. [0003] Another example is the disclosed Chinese patent No. 02249171.6 involving a wide-board folding ladder, which discloses that a movable connecting rod is fixed on the upper part of the front ladder column, and one end of the connecting rod is connected with the pedal support rod, and the o...
Claims
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IPC IPC(8): E06C1/28E06C1/383E06C7/08
Inventor 李杰张彬
Owner TIANJIN JINMAO GROUP