CN2185790Y

CN2185790Y - Line control changeable angle self-locking ladder

Info

Publication number: CN2185790Y
Application number: CN 93246706
Authority: CN
Inventors: 李卫东
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-28
Filing date: 1993-11-28
Publication date: 1994-12-21
Anticipated expiration: 2003-11-28

Abstract

The utility model relates to a line control changeable angle self-locking ladder which is characterized in that the utility model is composed of a plurality of sections of main ladders that are connected through a hinge-rod. Each connecting position is provided with a set of locking device which is composed of a lock sheet, a control lock sheet, a lock rod, a spring, a locking head and a drawn wire. The drawn wire is connected into a self-locking control system, and the locking head can be corresponding with a fixed lock hole arranged on the lock sheet, and the purpose of changeable angle locking can be obtained. The utility model has the advantages of locking with changeable angle, high sustained pressure and high safety performance.

Description

Line control changeable angle self-locking ladder

The utility model relates to a kind of line traffic control angle self-locking multipurpose ladder.

On September 13rd, 1991, the technical scheme that China's utility model patent communique discloses is a kind of " multifunctional ladder (notification number: CN2069918U) ", its structure is made up of more piece master ladder, between the main ladder of every adjacent two joints connecting piece is housed, be to be installed with the hinge bar between terraced epimere and the terraced hypomere, its weak point is can not lock after the moulding of ladder knuckle, therefore, when bearing big pressure, security performance is affected.

The purpose of this utility model is to provide a kind of line traffic control angle self-locking multipurpose ladder, all locks device with a cover between the terraced epimere of each junction and the terraced hypomere between its more piece master ladder, can be locked after the moulding of ladder knuckle.Therefore, increased the pressure that ladder can bear, security performance also is improved.

Task of the present utility model is finished like this: locking plate fixedly is equipped with in the outside at terraced epimere, the control locking plate fixedly is equipped with in the inboard of ladder hypomere, hinge-rod is installed in a pair of corresponding aperture of locking plate and control locking plate, two right angle spacers of suit on the hinge-rod, fixedly being welded one on the right angle face of spacer does not have the trapezoidal plane case in the end, hollow locking bar of each plug-in mounting is to terraced hypomere in a hole of hole of both sides spacer and control locking plate, a lock pin and a spring are housed in the locking bar, the locking bar oral area has a hollow sealing screw, wire drawing fixedly is housed on the lock pin, wire drawing passes the back access from lock control system from the mesopore of spring and sealing screw, thereby has reached the purpose of this utility model.

The utility model compared with prior art has the variable-angle lockable, bears the characteristics that pressure is big, security performance is high.

Detailed enforcement of the present utility model will provide in conjunction with the accompanying drawings:

Fig. 1 is the structure chart of terraced epimere and terraced hypomere junction in the line traffic control angle self-locking multipurpose ladder;

Fig. 2 is the A-A sectional drawing of Fig. 1;

Fig. 3 is a locking plate and the corresponding relation figure of controlling locking plate in the line traffic control angle self-locking multipurpose ladder;

Fig. 4 is a kind of structure chart from lock control system of line traffic control angle self-locking multipurpose ladder;

Fig. 5 is another structure chart from lock control system of line traffic control angle self-locking multipurpose ladder.

Locking plate (1) fixedly is equipped with in the outside of the terraced epimere (2) of each junction between a plurality of main ladders, control locking plate (3) fixedly is equipped with in the inboard of ladder hypomere (12), hinge-rod (5) is installed in a pair of corresponding aperture of locking plate (1) and control locking plate (3), hinge-rod (5) is gone up two right angle spacers of suit (4), fixedly be welded one on the right angle face of spacer (4) and do not have the trapezoidal plane case (6) in the end, a hollow locking bar of each plug-in mounting (10) is to terraced hypomere (12) in a hole of hole of both sides spacer (4) and control locking plate (3), a lock pin (11) and a spring (9) are housed in the locking bar (10), locking bar (10) oral area has a hollow sealing screw (7), lock pin (11) is gone up wire drawing (8) fixedly is housed, and wire drawing (8) passes the back access from lock control system from the mesopore of spring (9) and sealing screw (7).

From lock control system following implementation method can be arranged in the utility model:

1, in of terraced hypomere (12) steps on shelves (13), a control box (14) is housed, open handle (16) for one and be contained in the control box (14) by Handle axis (17), wire drawing (8) is passed across and is buckled (15) by the handle wire drawing behind the uropore of spacer (4) and be fixed on the unlatching handle (16).With the perpendicular shelves of holding tight terraced hypomere (12) and unlatching handle (16), open handle (16) traction wire drawing (8) and make lock pin (11) lateral movement and break away from locking plate (1) in ladder, ladder can change angle as required, when transferring to required angle, decontrol and open handle (16), because the effect of spring (9), lock pin (11) passes the hole of locking plate (1) and ejects laterally, and the angle of ladder is promptly locked.

2, a wheel carrier (18) fixedly is housed in plane case (6), wheel carrier (18) is gone up and by wheel shaft (20) runner (21) and a runner handle (22) is housed fixedly, and the side of runner (21) is by fixedly wire drawings of two runner wire drawing buttons (19) (8).This implementation method can be opened locking mechanism by rotating wheel handle (22).

3, a wheel carrier (18) fixedly is housed in plane case (6), wheel carrier (18) is gone up and by wheel shaft (20) runner (21) is housed fixedly, the side of runner (21) is by fixedly wire drawings of two runner wire drawing buttons (19) (8), there be the uropore of a wire drawing (8) by a slice spacer (4) to buckle of stepping in the shelves (13) that (15) be installed on terraced hypomere (12) on one of them wire drawing button (19) and open on handle (16), open handle (16) and be contained in by Handle axis (17) and step on grade (13) with the handle wire drawing.This implementation method can be by opening handle (16) control locking mechanism.

Other exposure portion of wire drawing in the utility model (8), can be in conjunction with wooden ladder and hollow aluminium alloy ladder different, setting-in and being sleeved in the perpendicular shelves of terraced hypomere (12) respectively can be more attractive in appearance.

Claims

1, a kind of line traffic control angle self-locking multipurpose ladder, by forming by hinge-rod (5) connection between a plurality of main ladders and the main ladder, feature of the present utility model is that locking plate (1) fixedly is equipped with in the outside of the terraced epimere (2) of each junction between a plurality of main ladders, control locking plate (3) fixedly is equipped with in the inboard of ladder hypomere (12), hinge-rod (5) is installed in a pair of corresponding aperture of locking plate (1) and control locking plate (3), hinge-rod (5) is gone up two right angle spacers of suit (4), fixedly be welded one on the right angle face of spacer (4) and do not have the trapezoidal plane case (6) in the end, a hollow locking bar of each plug-in mounting (10) is to terraced hypomere (12) in a hole of hole of both sides spacer (4) and control locking plate (3), a lock pin (11) and a spring (9) are housed in the locking bar (10), locking bar (10) oral area has a hollow sealing screw (7), lock pin (11) is gone up wire drawing (8) fixedly is housed, and wire drawing (8) passes the back access from lock control system from the mesopore of spring (9) and sealing screw (7).

2, line traffic control angle self-locking multipurpose ladder according to claim 1, it is characterized in that wherein be that at terraced hypomere (12) one steps in the shelves (13) control box (14) is housed from lock control system, open handle (16) for one and be contained in the control box (14) by Handle axis (17), wire drawing (8) is passed across and is buckled (15) by the handle wire drawing behind the uropore of spacer (4) and be fixed on the unlatching handle (16).

3, line traffic control angle self-locking multipurpose ladder according to claim 1, it is characterized in that wherein be that a wheel carrier (18) fixedly is housed in plane case (6) from lock control system, wheel carrier (18) is gone up and by wheel shaft (20) runner (21) and a runner handle (22) is housed fixedly, and the side of runner (21) is by fixedly wire drawings of two runner wire drawing buttons (19) (8).

4, line traffic control angle self-locking multipurpose ladder according to claim 1, it is characterized in that wherein be that a wheel carrier (18) fixedly is being housed in plane case (6) from lock control system, wheel carrier (18) is gone up and by wheel shaft (20) runner (21) is housed fixedly, the side of runner (21) is by fixedly wire drawings of two runner wire drawing buttons (19) (8), there be the uropore of a wire drawing (8) by a slice spacer (4) to buckle of stepping in the shelves (13) that (15) be installed on terraced hypomere (12) on one of them wire drawing button (19) and open on handle (16), open handle (16) and be contained in by Handle axis (17) and step on grade (13) with the handle wire drawing.