CN2430531Y

CN2430531Y - Foldable V-ladders

Info

Publication number: CN2430531Y
Application number: CN 00231761
Authority: CN
Inventors: 约翰·F·金
Original assignee: HONGKONG LIDE TECHNOLOGY Co Ltd
Current assignee: HONGKONG LIDE TECHNOLOGY Co Ltd
Priority date: 2000-03-28
Filing date: 2000-03-28
Publication date: 2001-05-16
Anticipated expiration: 2010-03-28

Abstract

The utility model relates to a foldable Y-shaped ladder, which comprises a straight ladder and a connecting body, wherein, the connecting body is a connecting pair, which comprises a positioning loose leaf, a fixed loose leaf and a fixed pin. The positioning loose leaf and the fixed loose leaf are hinged together through a hinge. The fixed pin is inserted into a hole where the fixed loose leaf and the positioning loose leaf are communicated, which can cause relative positions of the fixed loose leaf and the positioning loose leaf to be fixed. The foldable Y-ladder not only can be folded into an ordinary Y-shaped ladder to use, but also the foldable Y-ladder can be spread out into one straight ladder to use. Thus the utility model has the advantages of wide application occasions and convenient use.

Description

A kind of collapsible double ladder

The utility model relates to a kind of double ladder, and the general double ladder of particularly a kind of both collapsible conduct uses, and expansible is as the collapsible double ladder of vertical ladder use again.

In daily life, people often need to rise to be engaged in operation to certain altitude, as building maintenance, sanitation and hygiene, gardening work etc., and therefore need be by the purpose of certain apparatus to realize raising.The apparatus that is used for high-rise working commonly used is vertical ladder and double ladder, vertical ladder relatively simple for structure, and also the height that can rise is suitable with its length, but its use needs supporting mass, as wall, trees etc.; Double ladder structure relative complex a bit, generally be to link up by an end by the two sides vertical ladder to constitute, because of it does not need that supporting mass is arranged in addition, can on any level land, use, thereby the occasion of its use is wider, but,, can not make full use of the length of two sides ladder so actual accessible height is only suitable with the height of a vertical ladder because it is that the two sides vertical ladder supports each other on actually.

The purpose of this utility model is at above-mentioned existing in prior technology shortcoming, provides the general double ladder of a kind of both collapsible conduct to use, and expansible is as the collapsible double ladder of a vertical ladder use again.

The collapsible double ladder of the utility model is made of by the connector binding the two sides vertical ladder; Connector is secondary for connecting, and connects secondary location loose-leaf and fixedly loose-leaf is hinged by hinge, in steady pin inserts fixing loose-leaf and locatees the hole that loose-leaf is communicated with.

Six locating holes are arranged on the loose-leaf of described location, when wherein two locating holes communicate with two locating holes on the fixing loose-leaf location loose-leaf and fixedly the loose-leaf opening angle be 0 °; Locate when in addition two locating holes communicate with two locating holes on the fixing loose-leaf loose-leaf and fixedly the loose-leaf opening angle be two vertical ladders open angles when normally using; When two locating holes communicate with two locating holes on the fixing loose-leaf again the location loose-leaf and fixedly the loose-leaf opening angle be 180 °.

Two locating holes and two locating slots also can be arranged on the loose-leaf of described location, the location loose-leaf was 180 ° with fixing loose-leaf opening angle when two locating holes communicated with two locating holes on the fixing loose-leaf, locate when two locating slots communicate with two locating holes on the fixing loose-leaf loose-leaf and fixedly the loose-leaf opening angle be 0 ° of any angle between the open maximum angle when two vertical ladders normally use.

Described vertical ladder comprises outer ladder, manhole ladder and alignment pin, and outer ladder has chute, and in the chute of ladder, alignment pin inserted in the locating hole of outer ladder and manhole ladder both sides outside manhole ladder was socketed in, and an end of two sides manhole ladder links together by connecting pair.

The collapsible double ladder of the utility model is compared with existing vertical ladder or general double ladder has following advantage: this collapsible double ladder both can be used as general double ladder and had used the occasion that is not suitable for using vertical ladder, also it can be opened and be fixed as a vertical ladder and use by connecting pair, the height that this vertical ladder can arrive is the twice that former double ladder can arrive height, so the occasion that this collapsible double ladder can be suitable for is more extensive, and very easy to use; And because this collapsible double ladder can not open it by connecting the vertical ladder locking of adjutant two sides when not using, thereby avoided general double ladder in handling process, may open the inconvenience that brings voluntarily.

Fig. 1 is the structural representation of collapsible double ladder;

Fig. 2 is the schematic diagram of the another kind of structure of collapsible double ladder.

Fig. 3 is the manhole ladder of collapsible double ladder and connects secondary structural representation;

Fig. 4 is the outer ladder of collapsible double ladder and the structural representation of alignment pin;

Fig. 5 is the structural representation of the fixedly loose-leaf of collapsible double ladder;

Fig. 6 is the structural representation of the location loose-leaf of collapsible double ladder;

Fig. 7 is the schematic diagram of the another kind of structure of location loose-leaf of collapsible double ladder;

Embodiment of the present utility model is described with reference to the accompanying drawings.

Embodiment 1:

Fig. 1, Fig. 5 and Fig. 6 show a kind of structure of the present utility model, comprised vertical ladder 1, are connected pair 2 by visible this collapsible double ladder of structural representation shown in Figure 1, and an end of two sides vertical ladder 1 links together by connecting secondary 2; Connect secondary 2 and comprise location loose-leaf 9, fixedly loose-leaf 6, steady pin 8, location loose-leaf 9 is with fixedly loose-leaf 6 is hinged by hinge 7, and steady pin 8 inserts in fixing loose-leaf 6 and the hole that location loose-leaf 9 is communicated with to be fixed the fixing loose-leaf 6 and the relative position of locating loose-leaf 9; Fixedly the structure of loose-leaf 6 as shown in Figure 5, on two locating hole a, b are arranged; The structure of location loose-leaf 9 as shown in Figure 6, on six locating hole c～h are arranged, wherein the position that two locating hole a, b are relative on two locating hole e, h and the fixing loose-leaf 6 corresponding to location loose-leaf 9 and fixedly loose-leaf 6 opening angles be 0 ° position; In addition the position that two locating hole a, b are relative on two locating hole c, f and the fixing loose-leaf 6 is corresponding to the position of location loose-leaf 9 two sides vertical ladder 1 opening angle when fixedly loose-leaf 6 opening angles be normally use; The position that two locating hole a, b are relative on two locating hole g, d and the fixing loose-leaf 6 is 180 ° position corresponding to location loose-leaf 9 and fixing loose-leaf 6 opening angles again.The operating principle of the collapsible double ladder of this structure is: when (1) is flared to the angle of normal use when needs adjusting double ladder, earlier steady pin 8 is extracted, connect secondary 2 fixedly loose-leaf 6 this moment and locate loose-leaf 9 and can relatively rotate around hinge 7, when turning to the operating position, this moment, fixedly hole a, the b on the loose-leaf 6 was relative with hole c, f on the location loose-leaf 9, and the relative position that steady pin 8 is inserted fixing fixedly loose-leaf 6 in the relative hole and locate loose-leaf 9 can use; (2) when needs are transformed into a vertical ladder use with double ladder, earlier steady pin 8 is extracted, making fixedly loose-leaf 6 relatively rotate to both open angles with location loose-leaf 9 is 180 °, the two sides vertical ladder 1 that is double ladder is located along the same line, this moment, fixedly hole a, the b on the loose-leaf 6 was relative with hole g, d on the location loose-leaf 9, and the relative position that steady pin 8 is inserted fixing fixedly loose-leaf 6 in the relative hole and locate loose-leaf 9 can change double ladder into a vertical ladder use; (3) after double ladder is finished using, extract steady pin 8, it is 0 ° that rotational fixation loose-leaf 6 makes both open angles with location loose-leaf 9, the two sides vertical ladder that is double ladder closes up together, this moment, fixedly hole a, the b on the loose-leaf 6 was relative with hole e, h on the location loose-leaf 9, fixing fixedly loose-leaf 6 can make double ladder open no longer voluntarily with the relative position of location loose-leaf 9 in the hole that steady pin 8 insertions are relative, conveniently carries and moves.

Embodiment 2:

Fig. 2 to Fig. 6 shows the another kind of structure of this collapsible double ladder, and this collapsible double ladder comprises vertical ladder 1 and connects pair 2 as seen from Figure 2, and wherein vertical ladder 1 comprises outer ladder 3, manhole ladder 4 and alignment pin 5; An end of two sides manhole ladder 4 links together by connecting secondary 2 as seen from Figure 3, and there is the locating hole 10 of diverse location manhole ladder 4 both sides; Outer as seen from Figure 4 ladder 3 has chute 11, and there is locating hole 12 both sides; The annexation of each parts is as seen from Figure 2: manhole ladder 4 is socketed in the chute 11 of outer ladder 3, locating hole 10,12 interior fixedly manhole ladders 4 and outer ladder 3 that alignment pin 5 movable insertion manhole ladders 4 are corresponding with outer terraced 3; Fig. 3 also shows and connects secondary 2 structure, it comprises location loose-leaf 9, fixedly loose-leaf 6, steady pin 8 as seen from Figure 3, location loose-leaf 9 is with fixedly loose-leaf 6 is hinged by hinge 7, and steady pin 8 inserts in fixing loose-leaf 6 and the hole that location loose-leaf 9 is communicated with to be fixed the fixing loose-leaf 6 and the relative position of locating loose-leaf 9; Fixedly the structure of loose-leaf 6 as shown in Figure 5, on two locating hole a, b are arranged; The structure of location loose-leaf 9 as shown in Figure 6, on six locating hole c～h are arranged, wherein the position that two locating hole a, b are relative on two locating hole e, h and the fixing loose-leaf 6 corresponding to location loose-leaf 9 and fixedly loose-leaf 6 opening angles be 0 ° position; In addition the position that two locating hole a, b are relative on two locating hole c, f and the fixing loose-leaf 6 is corresponding to the position of location loose-leaf 9 manhole ladder 4 opening angles when fixedly loose-leaf 6 opening angles are for use; The position that two locating hole a, b are relative on two locating hole g, d and the fixing loose-leaf 6 is 180 ° position corresponding to location loose-leaf 9 and fixing loose-leaf 6 opening angles again.The operating principle of the collapsible double ladder of this structure is: when (1) regulates the height of double ladder when needs, draw back alignment pin 5 earlier, the chute 11 interior slips of ladder 3 outside of manhole ladder 4 this moment, adjusting manhole ladder 4 raises or is reduced to suitable position and makes manhole ladder 4 relative with the locating hole 10,12 of outer terraced 3 both sides, and the relative position of alignment pin 5 insertion locating holes, 10,12 interior fixedly manhole ladders 4 and outer ladder 3 can be finished adjusting highly; (2) when needs adjusting double ladder is flared to the angle of operating position, earlier steady pin 8 is extracted, connect secondary 2 fixedly loose-leaf 6 this moment and locate loose-leaf 9 and can relatively rotate around hinge 7, when turning to the operating position, this moment, fixedly hole a, the b on the loose-leaf 6 was relative with hole c, f on the location loose-leaf 9, and the relative position that steady pin 8 is inserted fixing fixedly loose-leaf 6 in the relative hole and locate loose-leaf 9 can use; (3) when needs are transformed into a vertical ladder use with double ladder, earlier steady pin 8 is extracted, making fixedly loose-leaf 6 relatively rotate to both open angles with location loose-leaf 9 is 180 °, the two sides manhole ladder 4 that is double ladder is located along the same line, this moment, fixedly hole a, the b on the loose-leaf 6 was relative with hole g, d on the location loose-leaf 9, and the relative position that steady pin 8 is inserted fixing fixedly loose-leaf 6 in the relative hole and locate loose-leaf 9 can change double ladder into a vertical ladder use; (4) after double ladder is finished using, extract steady pin 8, it is 0 ° that rotational fixation loose-leaf 6 makes both open angles with location loose-leaf 9, the two sides manhole ladder 4 that is double ladder closes up together, this moment, fixedly hole a, the b on the loose-leaf 6 was relative with hole e, h on the location loose-leaf 9, fixing fixedly loose-leaf 6 can make double ladder open no longer voluntarily with the relative position of location loose-leaf 9 in the hole that steady pin 8 insertions are relative, conveniently carries and moves.

Claims

1, a kind of collapsible double ladder links formation by two sides vertical ladder (1) by connector; It is characterized in that: connector is for connecting secondary (2), connects the location loose-leaf (9) of secondary (2) and fixedly loose-leaf (6) is hinged by hinge (7), in steady pin (8) inserts fixing loose-leaf (6) and locatees the hole that loose-leaf (9) is communicated with.

2, collapsible double ladder according to claim 1, it is characterized in that: have on the described location loose-leaf (9) six locating holes (c～h), wherein to locate loose-leaf (9) when communicating be 0 ° with fixing loose-leaf (6) opening angle for two locating holes (e, h) and fixing last two locating holes of loose-leaf (6) (a, b); In addition on two locating holes (c, f) and the fixing loose-leaf 6 two locating holes (a, b) locate when communicating loose-leaf (9) and fixedly loose-leaf (6) opening angle be two vertical ladders (1) open angles when normally using; To locate loose-leaf (9) when communicating be 180 ° with fixing loose-leaf (6) opening angle for two locating holes (g, d) and fixing last two locating holes of loose-leaf (6) (a, b) again.

3, collapsible double ladder according to claim 1, it is characterized in that: two locating holes (j, l) and two locating slots (i, k) also can be arranged on the described location loose-leaf (9), and two locating holes (j, l) and fixing last two locating holes of loose-leaf (6) (a, b) are located loose-leaf (9) when communicating be 180 ° with fixing loose-leaf (6) opening angle; Article two, locating slot (i, k) and fixing last two locating holes of loose-leaf (6) (a, b) locate when communicating loose-leaf (9) and fixedly loose-leaf (6) opening angle be 0 ° to two vertical ladders (1) any angle between the open maximum angle when normally using.

4, collapsible double ladder according to claim 1 is characterized in that: described vertical ladder (1) comprises outer ladder (3), manhole ladder (4) and alignment pin (5); Outer ladder (3) has chute (11), and in the chute (11) of ladder (3), alignment pin (5) inserted in the locating hole (10,12) of outer ladder (3) and manhole ladder (4) both sides outside manhole ladder (4) was socketed in, and an end of two sides manhole ladder (4) links together by connecting secondary (2).