CN202611567U - A-shaped safety ladder - Google Patents

Abstract

An A-shaped safety ladder comprises a front side ladder body (1) and a rear side ladder body (2) which are hinged at the tops; the front side ladder body (1) comprises front support columns (11) arranged on the left side and the right side and a plurality of cross pedals (12) transversely bridged between the front support columns (11) on the two sides; the rear side ladder body (2) comprises rear supporting columns (21) arranged on the left side and the right side, an upper connecting rod (22) and a lower connecting rod (23) which are respectively connected with the tops and the bottoms of the rear supporting columns (21) on the two sides, and a cross pedal is not arranged between the upper connecting rod and the lower connecting rod. Preceding, rear side ladder body upper portion sets firmly respectively and restricts preceding shrouding (15) and back shrouding (25) of climbing to the ladder top, can supply constructor health to lean on in order to guarantee to keep the health balanced when the operation of ascending a height to strengthen the intensity and the steadiness of the ladder body. The utility model discloses a A font safety ladder can prevent that the user from striding and removing in the both sides of ladder, stepping on to the ladder top etc. and meeting accident, and the ladder body adopts insulating material, still can prevent to electrocute, uses safelyr.

Description

A-shaped safety ladder

technical field

The utility model and a device for climbing heights particularly relate to an insulating A-shaped ladder used on construction sites. The utility model device is suitable for construction, decoration, maintenance and other construction sites. Using the utility model device can greatly improve construction safety. the

Background technique

Auxiliary climbing tools are often used on construction sites, decoration and maintenance sites, and administrative regulations in some places also stipulate that workbenches are required when working more than 2 meters above the ground. Auxiliary climbing operation tools commonly used on construction sites generally use ladders at present. The utility model patent with the patent number of 200520063300.0 discloses a self-locking safety miter ladder, which is composed of two straight ladder bodies connected by connecting pieces, and the straight ladder body is composed of two ladder bars respectively connected with several pedals at intervals. The connector is formed by connecting the left coupling pair and the right coupling pair through hinges. The structure of existing herringbone ladder is similar, but generally has following two points in common: 1, the structure of two straight ladder bodies is completely symmetrical, and the crossbar of ladder all is framed to the top of ladder always by fixed interval, i.e. both sides of ladder All are provided with crossbars for construction personnel to step on; 2. Most are made of metal materials. the

The climbing operation on the construction site often needs to change the construction position with the progress of the construction. In order not to delay the work progress, or feel that it is troublesome to climb up and down to move the ladder, some construction workers directly ride on the top of the ladder, with their feet on the people. On the crossbars on both sides of the ladder, move the ladder directly with your feet, and use the inertia of the body to move the ladder left and right or even forward and backward to reach a new construction position. Sometimes the construction workers even step on the top of the ladder with both feet Although this can speed up the work progress, the whole process has to rely on the feet to hold the ladder, and the construction workers will fall from the ladder and be injured if they are a little careless. On the other hand, many power supply facilities on the construction site are temporarily built, and the situation where the wires are exposed to the construction ground often occurs. When a ladder made of metal materials touches a damaged wire, it will cause construction workers to get an electric shock. the

Utility model content

The utility model provides an A-shaped safety ladder that can effectively reduce the occurrence of construction accidents based on summarizing and studying the causes of a large number of construction site accidents, and aiming at the deficiencies in the structural design of the existing auxiliary climbing tools. the

The utility model adopts the following technical solutions such as: an A-shaped safety ladder, including a front side ladder body and a rear side ladder body that are movably connected at the top, and the middle parts of the front side ladder body and the rear side ladder body are connected by a foldable connecting rod. together; it is characterized in that: the front side ladder body and the rear side ladder body are both made of insulating materials and both are asymmetrically configured;

The front ladder body includes two left and right vertical front support columns and a plurality of horizontal pedals that span across the two front support columns, thereby forming a working surface that can be climbed; the rear side ladder body includes two left and right vertical The rear support column and the upper connecting rod and the lower connecting rod respectively spanning the top and bottom of the two rear supporting columns, no cross pedal is set between the upper connecting rod and the lower connecting rod, thus forming a non-working surface without pedals . Because only the front of the device of the utility model is the working surface, construction personnel cannot work on both sides of the ladder, thereby reducing the accident rate of climbing operations.

The upper part of the front side ladder body and the rear side ladder body are respectively fixed with a front sealing plate and a rear sealing plate which limit climbing to the top of the ladder. The body leans on to ensure that the builder maintains his body balance during climbing operations, and can strengthen the strength and stability of the ladder body; and the uppermost cross pedal of the front side ladder body is far from the top connection of the front side ladder body and the rear side ladder body The distance between them is at least 800 mm, and this structure can prevent construction workers from climbing to the top of the ladder and using their feet to move the ladder. the

The front side ladder body and the rear side ladder body are made of insulating wood or engineering plastic materials, so the device of the utility model is completely insulated, so construction personnel can be prevented from getting an electric shock. When engineering plastic materials are used, both the front ladder body and the rear ladder body are injection molded. the

An anti-slip groove is provided on the upper surface of the horizontal pedal. The height of the front sealing plate and the rear sealing plate is 250-450 mm. The width of described cross pedal is 70-80 millimeters, and its thickness is 15-25 millimeters. the

Compared with the prior art, the A-shaped safety ladder of the utility model is only provided with a horizontal pedal on one side of the ladder body, while the other side of the ladder body is not provided with a horizontal pedal, thus preventing construction personnel from straddling the two sides of the ladder body In case of an accident during operation, the uppermost horizontal pedal on one side of the A-shaped safety ladder of the utility model is far away from the top of the ladder, and front and rear sealing plates are arranged above the ladder body, which can not only prevent construction personnel from climbing to The dangerous operation behavior of moving the ladder with both feet on the top of the ladder, and it can be used by the construction workers to lean on their bodies to ensure that the builders maintain their body balance during climbing operations and strengthen the strength and stability of the ladder body. The ladder of the utility model is made of insulating material, so it can prevent electric shock and is safer to use. the

Description of drawings

Fig. 1 is the structure schematic diagram of safety A word ladder of the present utility model. the

Detailed ways

Embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings. the

As shown in Figure 1, the safety A-shaped ladder of the present utility model is mainly made up of front side ladder body 1 and rear side ladder body 2, and this front side ladder body 1 and rear side ladder body 2 are hinged together at the top, and on the side The middle parts are connected by struts 3, thereby forming an A-shaped structure on the side. the

The left and right sides of the front side ladder body 1 are respectively provided with a front support column 11, and a plurality of cross pedals 12 are fixed horizontally between the front support columns 11 on the two sides, and the distance between adjacent cross pedals 12 is about 305 mm, this distance can be properly adjusted according to the height of the ladder. Horizontal pedal 12 is designed as flat plate, and its width is 70-80 millimeters, and thickness is 15-25 millimeters, and the contact surface when stepping on can be increased, improves safety performance, and width is 75 millimeters among the present embodiment, and thickness is 20 millimeters. In addition, the upper surface of the cross-pedal 12 is provided with an anti-skid groove 16 with an upper V-shaped section, which further increases the safety of the cross-pedal 12 . In order to prevent construction workers from climbing to the top of the ladder to perform accidental fall accidents, the distance between the uppermost horizontal pedal 12 of the front ladder body 1 and the top hinge of the front ladder body 1 and the rear side ladder body 2 is not less than 800 mm. In the example it is 845 mm. the

The left and right sides of the rear ladder body 2 are respectively provided with a rear support column 21, and the top and bottom of the rear support columns 21 on both sides are respectively connected together by an upper connecting rod 22 and a lower connecting rod 23 to form a roughly trapezoidal shape. According to the structure, there is no cross pedal between the upper connecting rod 22 and the lower connecting rod 23. In this way, the construction personnel cannot step on both sides of the ladder to work, nor can they clamp the two sides of the ladder to move the ladder. This avoids the occurrence of above-mentioned dangerous behavior to the greatest extent. the

In addition, the upper part of the front ladder body 1 is fixed with a front sealing plate 15 on the outer surface of the front supporting columns 11 on both sides, and the upper part of the rear side ladder body 2 is fixed on the outer surface of the rear supporting columns 21 on both sides. 25. The height of the front sealing plate 15 and the rear sealing plate 25 is 250-450 millimeters, which is 330 millimeters in the present embodiment. The advantage of setting the front sealing plate 15 and the rear sealing plate 25 is that it can prevent the construction personnel from climbing to the top of the ladder or moving the ladder, and it can be supported by the body to maintain balance and strengthen the strength and stability of the ladder body. the

In order to prevent the ladder from getting an electric shock, the front side ladder body 1 and the rear side ladder body 2 are all made of insulating wood materials, the front support column 11 and the cross pedal 12 are fixed by tenon joints, and the upper connecting rod 22 and the lower Tenon joints are also used for fixing between the connecting rod 23 and the rear support column 21 . The front ladder body 1 and the rear ladder body 2 can also be injection molded with engineering plastic materials. the

The middle part of the brace 3 connecting the sides of the front ladder body 1 and the rear ladder body 2 is a rotatable structure. When in use, the two sides of the brace rod 3 are expanded into a straight line so that the front ladder body 1 and the rear ladder body 2 are separated into an A-shape, and when not in use, the two sides of the strut 3 can be folded so that the front side ladder body 1 and the rear side ladder body 2 can be folded up, which is convenient for storage and movement. the

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. All modifications, equivalent replacements or improvements made within the spirit and principles of the utility model should be included in the protection scope of the utility model Inside. the

Claims (10)

1. an A font emergency staircase comprises front side ladder body (1) and rear side ladder body (2) that top movable connects, and said front side ladder body (1) and rear side ladder body (2) middle part involve together through collapsible connecting rod (3); It is characterized in that: said front side ladder body (1) is made by insulation materials with the terraced body of rear side (2) and both are symmetrical arrangements;

About said front side ladder body (1) comprises two vertical before the horizontal pedal (12) of support columns (11) before support column (11) and the horizontal cross-over connection two of polylith, constitute the work plane that can ascend a height thus; Two vertical back support columns (21) and the upper connecting rod (22) and the lower connecting rod (23) of cross-over connection two support column (21) tops, back and bottom respectively about said rear side ladder body (2) comprises; Between said upper connecting rod (22) and lower connecting rod (23), horizontal pedal is not set, constitutes pedalless non-working surface thus.

2. A font emergency staircase according to claim 1 is characterized in that: said front side ladder body (1) and rear side ladder body (2) top are installed with the preceding shrouding (15) and the back shrouding (25) on restriction climbing to ladder top respectively.

3. A font emergency staircase according to claim 2 is characterized in that: said horizontal pedal (12) upper surface is provided with anti-slip tank (16).

4. according to the described A font of each claim of claim 1 to 3 emergency staircase, it is characterized in that: said front side ladder body (1) and rear side ladder body (2) adopt wood materials to be made.

5. according to the described A font of each claim of claim 1 to 3 emergency staircase, it is characterized in that: said front side ladder body (1) and rear side ladder body (2) adopt engineering plastics to be made.

6. according to the described A font of each claim of claim 1 to 3 emergency staircase, it is characterized in that: the horizontal pedal (12) of ladder body (1) the top, said front side is not less than 800 millimeters apart from the distance of terraced body in front side (1) and rear side ladder body (2) junction, top.

7. according to claim 2 or the described A font of 3 each claims emergency staircase, it is characterized in that: the height of shrouding (15) and back shrouding (25) is 250-450 millimeters before said.

8. according to the described A font of each claim of claim 1 to 3 emergency staircase, it is characterized in that: the width of said horizontal pedal (12) is the 70-80 millimeter, and its thickness is the 15-25 millimeter.

9. A font emergency staircase according to claim 4; It is characterized in that: adopt joggle to fix before said between support column (11) and the horizontal pedal (12), adopt joggle to fix between said upper connecting rod (22) and lower connecting rod (23) and the back support column (21).

10. A font emergency staircase according to claim 5 is characterized in that: said front side ladder body (1) and rear side ladder body (2) are injection mo(u)lding.

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