CN2385067Y

CN2385067Y - Combined ladder pivot-turning positioning mechanism

Info

Publication number: CN2385067Y
Application number: CN 99213903
Authority: CN
Inventors: 吴兆爵
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-22
Filing date: 1999-06-22
Publication date: 2000-06-28
Anticipated expiration: 2009-06-22

Abstract

The utility model discloses a combined ladder pivot-turning positioning mechanism. The utility model is characterized in that two pivot-turning connecting seats which are respectively connected with a foot frame are pivoted, wherein, the arc-shaped periphery on the end part of one pivot-turning connecting seat is provided with a plurality of positioning concave parts; the middle section of the other pivot-turning connecting seat is provided with a sliding pushing block which can be elastically slid and moved. The sliding pushing block is slid and embedded in the positioning concave part, which causes the two pivot-turning connecting seats to be positioned. The sliding pushing block is pressed by a preset shifting sheet, which can cause the sliding pushing block to be slid out of the positioning concave part, and cause the two pivot-turning connecting seats to be formed into a pivot-turning state. When the two pivot-turning connecting seats are arranged in different intersection angles, the sliding pushing block is clamped and embedded in the different positioning concave parts to form a positioning structure which is combined with multi angles.

Description

Close terraced pivoting and positioning structure

The utility model relates to a kind of two pivoting and positioning structures that close between the foot of ladder frame that are engaged on.

Common close terraced structure, be directly two vertical ladders to be articulated mostly, make it to be the bonding state of a bottom expansible, closure, use and be used or different demands such as harvesting, yet, excessively open for avoiding this to close ladder, general how continuous with rope in two vertical ladder stage casings, make and close ladder and opened in certain special angle and form the location, be beneficial to close ladder and directly stand for use.

Yet along with social progress, people are changeable day by day to the requirement of every things, make various construction environments also complicated gradually, and tradition is closed terraced single opening angle, single structure of standing height has been difficult to meet changeable diversified construction demand.

The purpose of this utility model provide a kind of simple in structure, easy to use, have a plurality of opening angles and locate certain, the safe terraced pivoting and positioning structure that closes again.

For reaching above-mentioned purpose, the utility model by the following technical solutions:

The utility model is to be articulated with two pivot connecting bases that are connected foot rest respectively, wherein the arc periphery of a pivot connecting base end is provided with several location depressed parts, but the stage casing of another pivot connecting base is provided with the slip jacking block of an elastic slip, utilizing this slip jacking block cunning to be embedded in the depressed part of location can make two pivot connecting bases form the location, and suppress this slip jacking block with a default sliding piece, then can make the slip jacking block skid off the location depressed part, make two pivot connecting bases form pivotable state, treating two pivot connecting bases when the different angle, slip jacking block inlay card is in difference location depressed part and form the location of multi-angle combination.

The utility model will be further described below in conjunction with drawings and Examples:

Fig. 1 is a perspective exploded view of the present utility model.

Fig. 2 is a section construction combination schematic diagram of the present utility model.

Fig. 3 is a three-dimensional appearance schematic diagram of the present utility model.

Fig. 4 removes the action schematic diagram of location for the utility model.

Action schematic diagram when Fig. 5 does to pivot for the utility model.

Fig. 6 is positioned the action schematic diagram of another angle for the utility model.

1 is interior pivot connecting base, 231 is screw thread, 11,12 are the lid that narrows, 232 is nut, 111,121,211,221 for extending the convergence part, 3 for stirring holder, 112,122,212,222,311 is axis hole, 31 is the elasticity rotary disk, 113,123 are the location depressed part, 312 is hook system, 114,124 is the arc guide runner, 313 is fastening part, 115 are the hole, location, 314,332 is spring, 125 is top board, 32 is sliding piece, 126 is hook plate, 321 is locating hole, 2 is outer pivot connecting base, 322 is pressing part, 21,22 is half chuck, 323 is depressed part, 213,223 are long guide runner, 324,331 is alignment pin, 214,224 is pin-and-hole, 33 are the slip jacking block, 225 is baffle plate, 4 is foot rest, 23 is pivot.

As shown in Figure 1, pivot connecting base 1, outer pivot connecting base 2 and stir part such as holder 3 in the utility model mainly comprises; Wherein interior pivot connecting base 1 is to narrow by two to cover 11,12 be combined intos, this two narrows and covers 11,12 slightly are one＜shape, the one end is circular-arc, periphery is provided with several location depressed parts 113,123, location depressed part 113,123 inner edges then are provided with arc guide runner 114 relatively, 124, the heart is provided with an axis hole 112 among this circular arc, 122, cover 12 axis hole 122 sides and be provided with a hook plate 126 in addition and narrow, narrow and cover 11, the other end of 12 is for extending convergence part 111,121, can be for being connected in foot rest 4, and the stage casing of this half lid 12 is provided with a top board 125, narrows to cover 11 and be provided with hole 115, a location in relative position; Outer pivot connecting base 2 is by 2 half chucks, 21,22 be combined intos, this 2 half chuck 21,22 slightly is one＜shape, the one end is circular-arc, the center of circular arc is provided with an axis hole 212,222, and axis hole 212,222 sides are provided with the center that a long guide runner 213,223 points to axis hole 212,222, and long guide runner 213,223 sides are provided with a pin-and-hole 214,224 in addition, and the long guide runner 223 of half chuck 22 hangs down in the outer end and is provided with a baffle plate 225 again; Stir holder 3 and mainly comprise elasticity rotary disk 31, parts such as sliding piece 32 and slip jacking block 33, these elasticity rotary disk 31 central phoenix have an axis hole 311, periphery is provided with several vertically extending up and down fastening parts 313 and a hooked part 312, sliding piece 32 slightly is a F shape, the pressing part 322 that the one end protrudes out for vertical bending bifurcated, pressing part 322 dorsal parts are provided with a depressed part 323, sliding piece 32 stage casings are provided with a locating hole 321, slip jacking block 33 is connected in an alignment pin 331 ends, and the baffle plate 225 that runs through half chuck 22 is held in addition with it in the sheathed spring of alignment pin 331 peripheries 332 backs.

As Fig. 2, shown in Figure 3, during the utility model assembling, elasticity rotary disk 31 placed to narrow cover 11,12, make fastening part 313 be stretched into arc guide runner 114,124 up and down, the hooked part 312 of holding elasticity rotary disk 31 with spring 314 hooks covers 12 hook plate 126 with narrowing, and make to narrow and build 12 top board 125 and be embedded in to narrow and cover 11 hole, location 115 and form the location, and pivot connecting base 1 in being combined into; Pivot connecting base 1 two sides in again sliding piece 32 being sleeved on dichotomous pressing part 322, respectively with half chuck 21,22 are covered on to narrow and cover 11,12 upper and lower sides, and run through half chuck 21 with alignment pin 324,22 pin-and-hole 214,224 with the locating hole 321 of sliding piece 32, and make slip jacking block 33 place half chuck 21,22 long guide runner 213, in 223, mat spring 332 replaces again, can make slip jacking block 33 slippage in this default space, run through axis hole 222 with a pivot 23,122,311,112 and 212, and be screwed together in its screw thread 231 with a nut 232, make half chuck 21,22 are combined into an outer pivot joint connecting base 2 in addition, and make this outer pivot connecting base 2 and interior pivot connecting base 1 form a bonding state that articulates.

As Fig. 4, Fig. 5, shown in Figure 6, when sliding piece 32 is dialled commentaries on classics as the direction of arrow, the location depressed part 113 (123) of pivot connecting base 1 in its pressing part 322 compacting slip jacking blocks 33 make it to break away from, this moment, elasticity rotary disk 31 was by arc guide runner 114,124 fastening parts that stretch out 313 just can fasten in depressed part 323, make sliding piece 32 keep suppressing position (as shown in Figure 4) in slip jacking block 33, at this moment, pivot connecting base 1 and outer pivot connecting base 2 make slip jacking block 33 be resisted against interior pivot connecting base 1 distolateral cambered surface (as shown in Figure 5) of respectively locating between depressed part 113 (123) in can pivoting, when interior pivot connecting base 1 with outside pivot connecting base 2 will be switched to default position the time, can discharge sliding piece 32 earlier and make it to be returned to original position, and be subjected to the effect of spring 332 and can make slip jacking block 33 slide onto another depressed part 113 (123) positions, default location the time, directly embed and form and locate, pivot connecting base 1 in making and being somebody's turn to do, the foot rest 4 that outer pivot connecting base 2 is connected is different angles and upholds the location.

Claims

1, a kind ofly closes terraced pivoting and positioning structure, it is characterized in that, pivot connecting base (1), outer pivot connecting base (2) and stir holder (3) in including; Wherein interior pivot connecting base (1) is by two lids (11) that narrow, (12) be combined into, this two lid (11) that narrows, (12) slightly be one＜shape, the one end is circular-arc, periphery is provided with several location depressed parts (113), (123), location depressed part (113), (123) inner edge then is provided with arc guide runner (114) relatively, (124), the heart is provided with an axis hole (112) among this circular arc, (122), and axis hole (122) side of lid (12) that narrow is provided with a hook plate (126) in addition, lid (11) narrows, (12) the other end is for extending convergence part (111), (121), can be for being connected in foot rest (4); Outer pivot connecting base (2) is by 2 half chucks (21), (22) be combined into, this 2 half chuck (21), (22) slightly are one＜shape, the one end is circular-arc, the center of circular arc is provided with an axis hole (212), (222), and axis hole (212), (222) side are provided with the center that a long guide runner (213), (223) point to axis hole (212), (222), and long guide runner (213), (223) side be provided with a pin-and-hole (214), (224) in addition, and the long guide runner (223) of half chuck (22) hangs down in the outer end and is provided with a baffle plate (225) again; Stir holder (3) and mainly comprise elasticity rotary disk (31), sliding piece (32) and slip jacking block parts such as (33), the central phoenix of this elasticity rotary disk (31) has an axis hole (311), periphery is provided with several vertically extending up and down fastening parts (313) and a hooked part (312), sliding piece (32) slightly is a F shape, the pressing part (322) that the one end protrudes out for vertical bending bifurcated, pressing part (322) dorsal part is provided with a depressed part (323), sliding piece (32) stage casing is provided with a locating hole (321), slip jacking block (33) is connected in an alignment pin (331) end, and the baffle plate (225) that runs through half chuck (22) is held in addition with it in the sheathed spring of alignment pin (331) periphery (332) back; Elasticity rotary disk (31) places and narrows between lid (11), (12), fastening part (313) stretches into arc guide runner (114), (124) up and down, holds the hooked part (312) of elasticity rotary disk (31) and the hook plate (126) of lid (12) that narrow with spring (314) hook; The dichotomous pressing part of sliding piece (32) (322) is sleeved on interior pivot connecting base (1) two side, respectively with half chuck (21), (22) be covered on the lid (11) that narrows, (12) upper and lower sides, and run through half chuck (21) with alignment pin (324), (22) pin-and-hole (214), (224) with the locating hole (321) of sliding piece (32), slip jacking block (33) places half chuck (21), (22) long guide runner (213), (223) in, mat spring (332) replaces again, can make slip jacking block (33) slippage in this default space, pivot (23) runs through axis hole (222), (122), (311), (112) reach (212), and be screwed together in its screw thread (231) with a nut (232), make half chuck (21), (22) be combined into an outer connecting base (2) that articulates in addition, outer pivot connecting base (2) forms a bonding state that articulates with interior pivot connecting base (1).

According to the described a kind of terraced pivoting and positioning structure that closes of claim 1, it is characterized in that 2, two stage casings that narrow lid (11), (12) are provided with a top board (125) and hole (115), a location, top board (125) inlay card is the location in hole, location (115).