CN2070807U - Multifunctional telescopic ladder - Google Patents

Abstract

A telescopic ladder is composed of a ladder supporter made up of hollow tubes or C-shaped tubes, several telescopic ladder holders arranged in said hollow tubes or C-shaped tubes, a plastic supporting plate arranged under each ladder supporter for making them wear-resistant and well contacted, and a locating mechanism between said ladder supporter and pedal plate.

Description

Multifunctional telescopic ladder

The utility model relates to a multifunctional telescopic ladder, the main feature of which is that a specially designed locking and positioning mechanism is arranged between the ladder bracket and the pedals of the stretching ladder, and a A group of connecting wires, the user can press a group of tubular inner jackets with fingers to shrink the connecting wires passing through the U-shaped gaps of the two sets, so that the positioning pins of the locking positioning mechanism can be retracted, so that the telescopic ladder can be quickly condensed, And when you want to use the telescopic ladder, you can quickly pull it up for use.

The height of existing foldable ladders or telescopic ladders can only reach about 1/2 of the original height after condensation, and the positioning and locking mechanisms are generally not set between the ladder bracket and the ladder pedal, but mostly on the ladder bracket. The casing is used for folding and stretching the ladder. The multi-functional telescopic ladder of the utility model sets the telescopic mechanism between the ladder bracket and the ladder pedal. The height after condensation is only 1/4 of the original height, and the user can operate safely and quickly. , and the appearance is beautiful, easy to carry and shift, and it takes up little space when storing.

The main purpose of this utility model is to provide a telescopic ladder that can be safely and quickly operated, so that the ladder can be safely and quickly stretched into a ladder that occupies a very small space and is easy to carry and shift when not in use for a long time. Can be easily disassembled for storage.

The multifunctional telescopic ladder of the utility model mainly makes the ladder brackets into hollow tubes or C-shaped tubes of different sizes. thicker, the thinner the higher up. Rubber sleeves are set under each ladder bracket to make the ladder brackets wear-resistant and maintain good contact between the ladder brackets; a plastic receiving plate is installed above each bracket, and a quick locking positioning mechanism is provided in the receiving plate. The mechanism is set between the ladder bracket and the pedals of the telescopic ladder, and a set of ropes are arranged on the left and right of the space under each pedal. With the help of these ropes, the user can press a set of inner and outer button rods with fingers to The rope that passes through the U-shaped notch of the casing is shrunk so that the positioning pin of the locking positioning mechanism can be retracted, so that the telescopic ladder can be quickly knitted, and can be quickly pulled up for use when the telescopic ladder is intended to be used.

Below in conjunction with accompanying drawing, the utility model is described in detail.

Fig. 1 is the three-dimensional schematic diagram of the multifunctional telescopic ladder of the present invention forming a triangular ladder.

Fig. 2 is a three-dimensional schematic diagram of a multifunctional telescopic ladder of the present invention.

Fig. 3 is a three-dimensional schematic diagram of the multi-functional telescopic ladder of the present invention after condensation.

Fig. 4 is the first embodiment of the multi-functional telescopic ladder of the present invention used at the stairs.

Fig. 5 is the second embodiment of the multifunctional telescopic ladder of the present invention used at the stairs.

Fig. 6 is a schematic cross-sectional view of the utility model when the left and right sides of the multifunctional telescopic ladder bracket are locked.

Fig. 7 is a schematic cross-sectional view of the utility model when the left and right sides of the multifunctional telescopic ladder bracket are folded.

Fig. 8 is a three-dimensional schematic diagram of the pedals and internal components of the multifunctional telescopic ladder of the present invention.

Fig. 9 is a three-sided view of the receiving plate of the utility model multifunctional telescopic ladder ladder bracket.

Fig. 10 is a front view and a right side view of the locating pin of the multi-functional telescopic ladder of the present invention.

Fig. 11 is a schematic diagram of the ejection spring of the positioning pin of the multifunctional telescopic ladder of the present invention.

Fig. 12 is a three-dimensional schematic diagram of the receiving plate of the upper left top pedal of the utility model multifunctional telescopic ladder.

Fig. 13 is a three-dimensional schematic diagram of the receiving plate of the upper right step of the utility model multifunctional telescopic ladder.

Fig. 14 is a three-dimensional schematic view of the mandrel of the receiving plate of the multifunctional telescopic ladder of the present invention.

Fig. 15 is A-A and B-B sectional views of accompanying drawings 12 and 13.

Fig. 16 is a three-dimensional schematic diagram of the inner and outer rods of the button of the multifunctional telescopic ladder of the present invention.

Figure 17 is a sectional view of Figure 16C-C and D-D.

Please refer to accompanying drawing 1, in accompanying drawing 1, the connection mode and component setting between adjacent two supports in each group of supports are all similar, just the upper part of the multifunctional telescopic ladder, the supports are thinner, therefore, in This only describes in detail the connection mode and components between the lowermost two supports (10) and (11).

As shown in accompanying drawing 1, this telescopic ladder comprises two sets of supports (10) (11) and (10') (11 '), is provided with a pedal (13) between two supports (10) (11) , the pedal (13) is provided with anti-slip lines (14), and its two ends are inserted into the receiving plate (12) (12') for fixing, and the receiving plate (12) (12') is respectively sleeved on the two On the brackets (10) (11) and (10') (11'), top pedals (15) (16) are provided at the top of the two brackets, and the two top pedals are mutually nested by the receiving plates (17) (18) joint connection, a connecting fastener (26) is set on the side of the receiving plate (17) (18), and a connecting fastener (26) is arranged between two sets of opposite brackets (10) (10') and (11) (11'). The rod (19) can make the triangular ladder open to a fixed angle. There is a rod (20) under the connecting rod (19) for buckling and hanging when the connecting rod (19) is put down. It is on the outside of the pedal (13) Button outer rod (31) is provided, and button inner rod (32) is arranged on its inner side; As shown in Figure 6, a rubber sleeve (21) is provided between the brackets (10) (11), and the receiving plate (12 ) (12A) is provided with right and left positioning pins (22) (30) on the inner side, and the tail end of the positioning pins is provided with a small round hole, and the outer layer of the positioning pins is provided with springs (23) (29) to make the positioning pins Eject, right and left positioning block (24) (28) is provided with right and left positioning block (24) (28) in front of right and left positioning pin (22) (30) and spring can withstand, there is a cord (25) to connect between two positioning pins (22) (30), The rope (25) is controlled by the inner and outer rods (32) (31) of the button, thereby forming a fast locking positioning mechanism; accompanying drawing 8 shows the internal structural view of the pedal of the utility model multifunctional telescopic ladder , please refer to Fig. 16, 17, the button outer rod (31) protrudes from the central circular hole (131) in front of the pedal (13), and a U-shaped groove (313) is provided inside it for rope (25) Pass through, and its outer end is fitted with a cover (311); the button inner rod (32) is riveted and fixed on the pedal (13) by a rivet (33), and there is a bump (321) at its top to prevent The button outer bar (31) slides down, and there is a U-shaped groove (322) in the center to pass through for rope (25); Be provided with circular hole (241) (281) on positioning block (24) (28) and can be fixed by pin ( 34) Go through the small hole (341) and the round hole (241) (281) on the pedal (13) to fix the positioning block (24) (28) inside the pedal (13), as shown in Figure 9 The cross-sectional view of the receiving plate of the utility model multifunctional telescopic ladder has an insertion opening (121) of a support (11) above it, and an insertion opening (122) of a support (10) below, and the front is provided with a spring (23) as shown in Figure 11 ) (29) of the locating groove (123) and the insertion aperture (125) of the locating pin (22) (30) as shown in accompanying drawing 10.

Referring to accompanying drawings 12 and 14 again, the top of the receiving plate (17) is provided with a round hole (171), and the mandrel (35) can pass through the round hole (171) to cooperate with the buckle of the fixing buckle (36), so that the receiving plate Positioning, as shown in accompanying drawing 13, there is a circular hole (182) on the side of receiving plate (18), mandrel (35) also runs through this circular hole (182) to make two receiving plates (17) (18) connect, A sliding pin (38) is provided at the rear end of the receiving plate (18). The sliding pin (38) has mobility and can strengthen the strength of the ladder. The sliding pin (38) is blocked by a fixed block (37), (as the accompanying drawing 15), the top of the sliding pin (38) is provided with a sliding groove (181), which can be used as the telescopic activity space of the sliding pin (38). Accompanying drawing 2 shows that the multifunctional telescopic ladder of the present invention is stretched into the three-dimensional when standing upright. Views, shown in accompanying drawing 3 is the three-dimensional view when the folding of the utility model multifunctional telescopic ladder is completed, and accompanying drawing 4 and 5 are the embodiment views when the utility model multifunctional telescopic ladder is used in stairs, can be used in operation It can be stretched or shrunk or folded according to the user's needs. As mentioned above, the utility model has the advantages of safe, quick and convenient use, small space occupation when not in use, and multiple functions.

Claims (1)

1. multi-functional extension ladder, mainly by terraced support, the pedal bearing plate, two groups of treads link fasteners and card fastening position mechanism forms, and it is characterized in that terraced support is two groups of supports that a number caliber does not wait, the ladder support is hollow tubular or C type, order socket one by one; The below of every terraced support is provided with a gum cover, on every terraced support, establish a plastic cement bearing plate, be used to make terraced support and foot rest combination, one group of lug that can cooperate of the pedal tool on top, the left and right sides, wherein the hole of Yu Liuing is passed through with a single mandrel, and this axle can support left and right sides tread and support the pivot button that ladder is transformed to vertical ladder as making; Be provided with one in the bearing plate and block fastening position mechanism fast, this card fastening position mechanism is loaded between the support and foot rest of extension ladder, this card fastening position mechanism establishes an alignment pin in the inboard of each bearing plate, the tail end of alignment pin is provided with small sircle hole, the skin of each alignment pin is provided with spring, this spring can make alignment pin eject, the place ahead of alignment pin is provided with locating piece, be provided with a rope yarn between the alignment pin of same foot rest, this rope yarn passes the small sircle hole of alignment pin tail end and the U-lag breach of the inside and outside bar of button, inside and outside pressing button during bar, rope yarn can shrink toward middle, but make the alignment pin retraction of card fastening position mechanism, extension ladder condensation fast, pull-up fast when using extension ladder.

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