TW201617517A - Aluminum A-shaped ladder anti-topple device - Google Patents

Abstract

An aluminum A-shaped ladder anti-topple device, comprising: four support bars having their inner ends pivotally connected to the lower ends of a first and second ladder frames; a plurality of bar-fixing holes disposed at equal intervals in the lower ends of the first and second ladder frames; four linking rods comprising a first and second ends, the first end of the linking rod pivotally connected to the middle section of each of the support bars; four positioning elements penetrating the second end of the linking rod and the bar-fixing holes of the first and second ladder frames, so as to connect the linking rod with the first and second ladder frames. Through the four support bars being flat on the ground and the oblique connection of the linking rod, the anti-topple stability of the aluminum A-shaped ladder can be improved. In addition, one of the outer walls of the first and second ladder frames is correspondingly provided with a side bar that contains a hanging hook, when the side bar protrudes uprightly above the aluminum A-shaped ladder, the user can maintain a stable stand-up gesture with the aid of side bars, the safety of a worker at a high place is improved through the use of side bars, and the hanging hook on the side bars allows hanging of the worker's tool bag.

Description

A-shaped aluminum ladder anti-tip device

This creation is about an A-shaped aluminum ladder anti-tip device, especially the diagonal connection of the four support rods on the ground and the connecting rod, which can improve the stability of the A-shaped aluminum ladder to prevent dumping.

Please refer to Annex 1. The commercially available A-shaped aluminum ladder includes a front ladder frame and a rear ladder frame. The front ladder frame is pivotally connected to the upper end of the rear ladder frame, and the front ladder frame and the rear ladder frame are respectively disposed between the two sides. A link set is provided, which prevents the clamping angle of the front ladder frame and the rear ladder frame from changing.

According to the above description, the commercially available A-shaped aluminum ladder of the previous case still has the following disadvantages when it is actually used:

1. The front ladder frame of the commercially available A-shaped aluminum ladder and the lower end of the rear ladder frame cannot stand firmly on the uneven ground, and the A-shaped aluminum ladder often has the danger of dumping.

2. Above the commercially available A-shaped aluminum ladder, there is no provision for providing a user-supported standing structure, which makes the workers located at a high place safe and secure.

3. Above the commercially available A-shaped aluminum ladder, there is no equipment for hanging the tool bag, which makes it difficult for the ascending worker to take the tool bag.

The above shortcomings show that various disadvantages derived from the use of commercially available A-shaped aluminum ladders lead to a low consumer's willingness to purchase. Therefore, how to overcome the above problems is an urgent goal that the industry is currently striving to achieve.

Therefore, the object of the present invention is to provide an innovative device for preventing the dumping of an A-shaped aluminum ladder, the anti-tip device comprising: four inner ends pivotally connected to the support bars of the first ladder frame and the lower end of the second ladder frame. Most of the rod holes are disposed at equal intervals at the lower end of the first ladder frame and the second ladder frame. The fourth end includes a connecting rod with a first end and a second end, and the first end of the connecting rod is pivotally connected to the middle portion of each supporting rod. 4. A positioning member that connects the second end of the connecting rod and the fixing rod holes of the first and second ladder frames to connect the connecting rod with the first and second ladder frames.

The above support rod is an L-shaped rod body.

One of the outer walls of the first ladder frame and the second ladder frame is provided with a side bar including a connecting end and a working end.

The working end of the side bar is provided with a storage hook.

The first ladder frame and the second ladder frame group are provided with outer side walls of the side bars, and correspondingly, the fixing seat and the lower fixing seat are provided on the fastening side bars.

The beneficial effect of the present invention is that the stability of the A-shaped aluminum ladder to prevent dumping can be improved by the four support rods being flatly attached to the ground and the oblique connection of the connecting rod, and one of the first ladder frame and the second ladder frame The outer wall is correspondingly provided with a side bar including a storage hook. When the side bar is protruded above the A-shaped aluminum ladder, the user can support the side bar to stably stand, and the safety of the worker located at a high place is enhanced by the side bar, and the side bar The storage hook can be used to hang the tool bag of the worker.

A‧‧‧First ladder

B‧‧‧Second ladder

1‧‧‧Anti-dumping device

11‧‧‧Support rod

12‧‧‧ Fixed rod hole

13‧‧‧ Connecting rod

131‧‧‧ first end

132‧‧‧ second end

14‧‧‧ Positioning components

15‧‧‧ sidebar

151‧‧‧link

152‧‧‧Working end

153‧‧‧Store hook

154‧‧‧上固定座

155‧‧‧ lower mount

1 is a perspective view showing a preferred embodiment of the A-shaped aluminum ladder pouring device in the present invention; and FIG. 2 is a perspective view showing the preferred side of the creative side bar standing above the A-shaped aluminum ladder. Embodiment 3; FIG. 3 is a plan view showing an embodiment in which the present support rod is flatly attached to the ground; and FIG. 4 is a plan view showing an embodiment in which the angle between the creation support rod and the first and second ladder frames is reduced; And Fig. 5 is a plan view showing an embodiment in which the creation support bar is narrowed in parallel with the first and second ladder frames.

The detailed description of the preferred embodiments of the present invention will be apparent from the detailed description of the preferred embodiments.

Referring to Figures 1 and 2, a preferred embodiment of the A-shaped aluminum ladder anti-tip device 1 includes a support rod 11 pivotally connected to the lower end of the first ladder frame A and the second ladder frame B. The support rod 11 is an L-shaped rod body.

Most of the rod holes 12 are disposed at equal intervals on the lower ends of the first ladder frame A and the second ladder frame B.

The connecting rod 13 includes a first end 131 and a second end 132. The first end 131 of the connecting rod 13 is pivotally connected to the middle of each supporting rod 11.

4, the second end 132 of the connecting rod 13 and the fixing rod hole 12 of the first and second ladder frames A and B are disposed to connect the connecting rod 13 with the first and second ladder frames A and B.

One of the outer walls of the first ladder frame A and the second ladder frame B is provided with a side bar 15 including a connecting end 151 and a working end 152. The working end 152 of the side bar 15 is provided with a storage hook 153. The first ladder frame A and the second ladder frame B are provided with outer walls of the side bars 15, and correspondingly, the fixing seats 154 and the lower fixing seats 155 are provided on the fastening side bars 15.

Referring to Figures 1 and 3, when the first ladder frame A and the second ladder frame B are deployed in an A-shape, the worker is provided to climb the pedal and pivotally support the support rods at the lower ends of the first ladder frame A and the second ladder frame B. 11 is flatly attached to the ground, and the connecting rod 11 is obliquely connected between the support rods 11 and the lower ends of the first ladder frame A and the second ladder frame B. The anti-tip device 1 composed of the support rod 11 and the connecting rod 13 It has the stability to improve the A-shaped aluminum ladder to prevent dumping.

Referring to FIG. 2, when the side bar 15 is protruded above the A-shaped aluminum ladder, the upper bracket 154 can be used to fix the side bar 15 and the first ladder frame A and the second ladder frame B. Referring to FIG. 1 , when the side bar 15 is folded on the outer walls of the first ladder frame A and the second ladder frame B, the side frame 15 and the first ladder frame A and the second ladder frame B can be fastened by the lower fixing seat 155. .

Referring to Figures 4 and 5, when the A-shaped aluminum ladder is used on the slope topography, the angle of the support rod 11 with the first ladder frame A and the second ladder frame B can be adjusted by the second end 132 of the connecting rod 13 The fixing holes 12 of different positions (from bottom to top) at the lower ends of the first ladder frame A and the second ladder frame B are connected, and the angle of the support rod 11 with the first ladder frame A and the second ladder frame B can be changed ( From the big to the smaller, the support rod 11 makes the standing of the A-shaped aluminum ladder more stable, and indeed protects the safety of the ascending worker.

Through the description of the above embodiments, it can be seen that the A-shaped aluminum ladder anti-tip device of the present invention has the following enhancements:

1. Flatten the four support rods on the ground to improve the stability of the A-shaped aluminum ladder to prevent dumping.

2. One of the outer walls of the first ladder frame and the second ladder frame is provided with a side bar including a storage hook. When the side bar is protruded above the A-shaped aluminum ladder, the user can support the side bar to stably stand by the side. The pole enhances the safety of workers located at high places.

3. The storage hook of the side bar can be used to hang the tool bag of the ascending worker.

In summary, the A-shaped aluminum ladder anti-dumping device can improve the stability of the A-shaped aluminum ladder to prevent dumping. The user can support the side pole to stabilize the standing, so that the safety of the worker located at the height is improved, and the climbing work is provided. The tool bag is hung, which effectively improves the shortcomings of the traditional A-shaped aluminum ladder, and it does meet the patent requirements of novelty, advancement and industrial utilization.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited by this, that is, the simple equivalent change and modification made by the applicant according to the scope of the patent application and the new description content, All are still covered by this creation patent.

Attachment 1: Photograph of the commercially available A-shaped aluminum ladder.

A‧‧‧First ladder

B‧‧‧Second ladder

1‧‧‧Anti-dumping device

11‧‧‧Support rod

12‧‧‧ Fixed rod hole

13‧‧‧ Connecting rod

131‧‧‧ first end

132‧‧‧ second end

14‧‧‧ Positioning components

15‧‧‧ sidebar

151‧‧‧link

152‧‧‧Working end

153‧‧‧Store hook

154‧‧‧上固定座

155‧‧‧ lower mount

Claims (5)

An A-shaped aluminum ladder anti-dumping device comprises: four inner ends pivotally connected to the support bars of the first ladder frame and the lower end of the second ladder frame; most of which are arranged at equal intervals on the lower ends of the first ladder frame and the second ladder frame a rod hole; four connecting rods having a first end and a second end, the first end of the connecting rod is pivotally connected to the middle portion of each supporting rod; and the second end of the connecting rod is disposed at the second end of the connecting rod and the first and second ladder frames The fixing hole is a positioning component that connects the connecting rod with the first and second ladder frames. The A-shaped aluminum ladder anti-tip device according to claim 1, wherein the support rod is an L-shaped rod body. The A-shaped aluminum ladder anti-tip device according to the first aspect of the invention, wherein one of the outer walls of the first ladder frame and the second ladder frame is provided with a side bar including a connecting end and a working end. The A-shaped aluminum ladder anti-tip device according to Item 3 of the patent application scope, wherein the working end of the side bar is provided with a storage hook. The A-shaped aluminum ladder anti-tip device according to claim 3, wherein the first ladder frame and the second ladder frame group are provided with outer side walls of the side bars, and correspondingly, a fixing seat on the side of the fastening side bar is provided. Lower mount.