CN113775290B

CN113775290B - Lateral stabilizing device of working ladder

Info

Publication number: CN113775290B
Application number: CN202010518231.7A
Authority: CN
Inventors: 施昌邑
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2023-02-28
Anticipated expiration: 2040-06-09
Also published as: CN113775290A

Abstract

The invention provides a lateral stabilizing device of a working ladder, wherein the working ladder is provided with a supporting leg, the supporting leg is provided with a support containing groove, the bottom side of the supporting leg is fixedly connected with a lateral stabilizing device, the lateral stabilizing device is provided with a rotary connecting seat, the rotary connecting seat is provided with a rotary connecting groove corresponding to the support containing groove, the rotary connecting groove is inserted with a rotary swing shaft, the rotary swing shaft is sleeved with a first rotary spring and a rotary swing support, the rotary swing support is fixedly connected with a ratchet wheel, and ratchets are distributed around the ratchet wheel; the first rotary spring is positioned with the rotary seat and the ratchet wheel; a ratchet swing component is lapped above the ratchet wheel and is provided with a pawl meshed with the ratchet; the rotating groove is inserted with a component shaft pivoted with the ratchet swing component, the component shaft is sleeved with a second rotary spring, and the second rotary spring is positioned on the rotating seat and the ratchet swing component to control the pawl to be engaged with the ratchet.

Description

Lateral stabilizing device of working ladder

Technical Field

The invention relates to a stabilizing device, in particular to a lateral stabilizing device of a working ladder, which can make the working ladder more stable in use.

Background

First, in the working ladder 10 disclosed in the prior art, when the working ladder 10 is used, the support is opened according to the two ladder surfaces 101, and the ladder surfaces 101 are used for personnel to step on the high place for construction, and the width of the ladder surfaces 101 is limited, and moreover, most of the working ladders 10 are made of aluminum alloy with extremely light weight, so that the stabilizing effect of the working ladder 10 in use is limited (as shown in fig. 1).

Therefore, manufacturers often limit the range of use of the working ladder 10, and guards must be provided to accompany the stabilized working ladder 10 to ensure safety (as shown in fig. 1).

Disclosure of Invention

In view of the above, the present invention is directed to a lateral stabilizer of a working ladder, so as to overcome the disadvantages of the conventional working ladder, such as poor stability and safety in use.

The left side and the right side of the working ladder are respectively provided with an opening-closing body, the outer side of the opening-closing body is provided with a supporting leg, the supporting leg is provided with a support containing groove which is inwards concave from the outer side, the bottom side of the supporting leg is fixedly connected with a lateral stabilizing device, the lateral stabilizing device is provided with a rotary connecting seat, the rotary connecting seat is provided with a rotary connecting groove corresponding to the support containing groove, the inner side of the rotary connecting groove is penetrated with a component through hole, the rotary connecting groove is inserted with a rotary swing shaft, the rotary swing shaft is provided with a first rotary spring in a sleeved mode, the rotary swing support is pivoted with a rotary swing support, the rotary swing support is fixedly connected with a ratchet wheel, and ratchets are distributed around the ratchet wheel; the first rotary spring is provided with a first positioning terminal positioned on the rotary connecting seat and a first reset terminal positioned on the ratchet wheel and used for forcing the rotary swing bracket to be spirally received into the bracket accommodating groove; a ratchet swing component is lapped above the ratchet wheel, one side of the ratchet swing component is provided with a pawl which is meshed with the ratchet, and the other side of the ratchet swing component is provided with a disengagement pressing part which penetrates through the through hole of the component; the rotating groove is inserted with an assembly shaft pivoted with the ratchet swing assembly, the assembly shaft is sleeved with a second rotating spring, two ends of the second rotating spring are respectively provided with a second positioning terminal and a second reset terminal, the second positioning terminal is positioned on the rotating seat, and the second reset terminal is positioned on the ratchet swing assembly and controls the pawl to be engaged with the ratchet in a downward rotating manner.

The swing support of the invention is pivoted with the swing shaft at the lower end, the upper end of the swing support is also provided with a non-slip block groove, the non-slip block groove is further pivoted with a non-slip block, and the non-slip block is additionally provided with a non-slip convex part protruding laterally. Then, the lower end of the rotary swing support is pivoted with the rotary swing shaft, and the upper end of the rotary swing support is provided with a pedal convex body extending out of the support accommodating groove.

The invention has the beneficial effects that: the bottom side of the supporting foot is fixedly connected with a lateral stabilizing device, and the lateral stabilizing device controls the rotary swing bracket to be rotatably received into the bracket containing groove when not in use according to the first rotary spring, the ratchet wheel and the ratchet swing component.

Drawings

Fig. 1 is a schematic view of a conventional work ladder.

FIG. 2 is a side view of the working ladder of the present invention.

Fig. 3 is an exploded perspective view of the inventive work ladder.

Fig. 4 is a schematic view of the lateral stabilization device assembly of the present invention.

Fig. 5 is a schematic operation diagram of the work ladder of the present invention in a three-dimensional unfolding mode.

Fig. 6 is a schematic view of the downward rotation operation of the lateral stabilizer of the present invention.

FIG. 7 is a schematic view of an operation of the disengagement pressing portion of the present invention.

In the figure:

the prior structure is as follows:

10, a working ladder; 101, a tread;

the invention comprises the following steps:

1, a working ladder; 11 an opening-closing body; 13 supporting the feet; 131 bracket accommodating groove; 2, a lateral stabilizing device; 21, a screwing seat; 22 a rotary connection groove; 23 perforating the components; 3, rotating a swing shaft; 4 a first return spring; 41 a first positioning terminal; 42 a first reset terminal; 5, rotating and swinging the bracket; a 51 ratchet wheel; 52 ratchet teeth; 53 stop block slots; 54 anti-slip blocks; 55 slip-preventing protrusions; 56 a pedal convex body; 6, a ratchet assembly; a pawl 61; 62 disengaging the pressing part; 7 a component shaft; 8 a second convolution spring; 81 a second positioning terminal; 82 second reset terminal.

Detailed Description

The present invention is further described below in conjunction with the drawings and the embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

The invention mainly provides a lateral stabilizing device 2 of a working ladder 1, wherein, the left and right sides of the working ladder 1 are respectively provided with an opening and closing body 11, the front and back outer sides of the opening and closing body 11 are respectively provided with a supporting foot 13, at least one supporting foot 13 or four supporting feet 13 are provided with a support containing groove 131 which is inwards concave from the outer side, the bottom side of at least one supporting foot 13 or four supporting feet 13 is fixedly connected with a lateral stabilizing device 2, the lateral stabilizing device 2 is provided with a rotary connecting seat 21, the rotary connecting seat 21 is provided with a rotary connecting groove 22 corresponding to the support containing groove 131, the inner side of the rotary connecting groove 22 is penetrated with a component through hole 23, the rotary connecting groove 22 is inserted with a rotary swing shaft 3, the rotary swing shaft 3 is sleeved with a first rotary spring 4 and is pivoted with a rotary swing support 5, the rotary swing support 5 is fixedly connected with a ratchet 51, and ratchets 52 are distributed around the ratchet 51; the first rotary spring 4 has a first positioning terminal 41 positioned on the rotary seat 21, and a first reset terminal 42 positioned on the ratchet 51 and forcing the rotary swing frame 5 to be rotatably received in the frame receiving slot 131; a ratchet pendulum component 6 is lapped above the ratchet wheel 51, one side of the ratchet pendulum component 6 is provided with a pawl 61 engaged with the ratchet 52, and the other side of the ratchet pendulum component 6 is provided with a disengagement pressing part 62 penetrating through the component through hole 23; the rotation groove 22 is inserted with a component shaft 7 pivotally connected to the ratchet swing component 6, the component shaft 7 is sleeved with a second rotation spring 8, two ends of the second rotation spring 8 are respectively provided with a second positioning terminal 81 and a second reset terminal 82, the second positioning terminal 81 is positioned on the rotation seat 21, the second reset terminal 82 is positioned on the ratchet swing component 6 and controls the pawl 61 to be engaged with the ratchet 52 in a downward rotation manner (as shown in fig. 2-5).

The swing shaft 3 is pivoted to the lower end of the swing support 5, a sliding stop block slot 53 is formed in the upper end of the swing support 5, a sliding stop block 54 is pivoted to the sliding stop block slot 53, and a sliding stop protrusion 55 protruding laterally is added to the sliding stop block 54. Then, the upper end of the swing frame 5 is provided with a pedal protrusion 56 (as shown in fig. 2-4) extending out of the frame receiving slot 131.

The lateral stabilizer 2 is fixed to the bottom side of the supporting leg 13 of the present invention, and the lateral stabilizer 2 controls the swinging bracket 5 to be rotatably received into the bracket receiving slot 131 for positioning according to the first revolving spring 4, the ratchet 51 and the swinging component 6 when not in use. When the working ladder 1 needs to expand the supporting range, the user can select to rotate the swing bracket 5 downwards by turning with the hand and stepping on the pedal convex body 56, at the same time, the ratchet wheel 51 rotates along with the swing bracket 5, the ratchet 52 presses the pawl 61 to the available supporting angle of the swing bracket 5, and then the ratchet wheel is clamped and positioned, the swing bracket 5 can be supported on the ground by the anti-slip convex body 55 according to the ground conditions (for example, as shown in fig. 5 and 6; the ground is not drawn and labeled), and the swing bracket 5 can rotate to the proper angle according to the ground conditions to support the anti-slip convex body 55 on the ground (for example, as shown in fig. 6; the ground is not drawn and labeled). On the contrary, when the swinging bracket 5 is to be retracted, the pawl 61 is moved upward to release the engagement with the ratchet 52 by pressing the releasing pressing portion 62 downward, and the first coil spring 4 is used to force the swinging bracket 5 to be retracted into the bracket receiving slot 131 (as shown in fig. 5 and 7).

As can be seen from the above description: the lateral stabilizer 2 fixed to the bottom side of the supporting leg 13 of the present invention is received into the holder receiving slot 131 according to the swing holder 5 when the first swing spring 4 is not in use, and the ratchet 51 is used to position the swing holder 5 within the holder receiving slot 131 together with the swing component 6. When the working ladder 1 needs to expand the supporting range in use, the pedal convex body 56 can be rotated to enable the swinging support 5 to be screwed down to a proper position, meanwhile, the swinging support 5 can be clamped and positioned after the ratchet 52 of the ratchet 51 forces the pawl 61 to control the available supporting angle of the swinging support 5, otherwise, when the swinging support 5 is to be folded, the pawl 61 only needs to be pressed downwards to enable the pawl 61 to move upwards to remove the excellent characteristic of controlling the meshing of the ratchet 52.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitutions or changes made by the person skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the invention is subject to the claims.

Claims

1. A lateral stabilizing device for a working ladder, comprising: the left side and the right side of the working ladder are respectively provided with an opening body, the front outer side and the rear outer side of the opening body are respectively provided with a supporting foot, at least one supporting foot is provided with a support containing groove which is concave inwards from the outer side, the bottom side of at least one supporting foot is fixedly connected with a lateral stabilizing device, the lateral stabilizing device is provided with a rotary connecting seat, the rotary connecting seat is provided with a rotary connecting groove corresponding to the support containing groove, a component through hole is arranged at the inner side of the rotary connecting groove in a penetrating way, a rotary swing shaft is inserted in the rotary connecting groove, the rotary swing shaft is sleeved with a first rotary spring and is pivoted with a rotary swing support, the rotary swing support is fixedly connected with a ratchet wheel, and ratchets are distributed around the ratchet wheel; the first rotary spring is provided with a first positioning terminal positioned on the rotary connecting seat and a first reset terminal positioned on the ratchet wheel and used for forcing the rotary swing bracket to be spirally received into the bracket accommodating groove; a ratchet swing component is lapped above the ratchet wheel, one side of the ratchet swing component is provided with a pawl which is meshed with the ratchet, and the other side of the ratchet swing component is provided with a disengagement pressing part which penetrates through the through hole of the component; the rotating groove is inserted with an assembly shaft pivoted with the ratchet swing assembly, the assembly shaft is sleeved with a second rotating spring, two ends of the second rotating spring are respectively provided with a second positioning terminal and a second reset terminal, the second positioning terminal is positioned on the rotating seat, and the second reset terminal is positioned on the ratchet swing assembly and controls the pawl to be engaged with the ratchet in a downward rotating mode.

2. The lateral stabilizer of a working ladder as claimed in claim 1, wherein the swing support is further pivoted with the swing shaft at a lower end thereof, the swing support is further provided with a sliding stop block slot at an upper end thereof, the sliding stop block slot is further pivoted with a sliding stop block, and the sliding stop block is further provided with a sliding stop protrusion protruding laterally.

3. A lateral stabilizer for a working ladder as claimed in claim 1, wherein the swinging support is further pivotally connected at a lower end thereof to the swinging shaft, and the swinging support is further provided at an upper end thereof with a pedal protrusion extending out of the support receiving groove.