Secondary anti-falling structure of attached lifting scaffold

Abstract

The utility model relates to an anti-falling structure, belongs to the technical field of scaffold anti-falling, and particularly relates to an attached type secondary anti-falling structure of a lifting scaffold, which comprises a scaffold main body, a wall-attached support is slidably arranged on the outer side of the scaffold main body through a roller, and the roller is fixedly connected with the wall-attached support through two groups of bolts I and nuts I; according to the utility model, a small pawl is removed, the pawl is pulled by an extension spring, and the pawl is kept in an extension state under the tension action of the extension spring during working, so that the attachment support can clamp a frame body round bar more conveniently, and when the frame body needs to be lifted, namely when a lifting system works, the pawl does not interfere with the lifting of the frame body, and the lifting efficiency is improved. When the scaffold body falls suddenly, the pawl can quickly clamp the closest scaffold body round bar above the pawl, and the scaffold is clamped under the action of the buckle, so that secondary falling is prevented; the problem that secondary falling prevention fails due to the fact that a small pawl and a large pawl are possibly clamped at the same time due to the height of floors in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of scaffold anti-falling, in particular to a secondary anti-falling structure of an attached lifting scaffold. Background Art

[0002] With the continuous advancement of my country's urbanization process, urban construction land resources are becoming increasingly scarce, the number of high-rise and super-high-rise buildings is increasing, the relevant high-rise building construction technology is developing rapidly, and various high-rise building construction machinery and equipment are constantly being updated.

[0003] The attached lifting scaffolding is an external scaffolding that is erected at a certain height and attached to the engineering structure. It relies on its own lifting device and can climb layer by layer with the building structure. It has the characteristics of low cost, efficient construction, safety, and strong adaptability. As an advanced auxiliary construction technology in high-rise building construction, it is gradually accepted by construction companies and widely used.

[0004] Currently, the scaffolding fall arrester on the market is composed of two pawls, one long and one short. There is a through hole at the axis where the two pawls are connected. A pin can be used to pass through the through hole in the pawl axis to fix the fall arrester to the wall support. The fall arrester can rotate around the pin, thereby realizing its fixed anti-fall function. However, in actual operation, it is found that due to the height of the floor, the small pawl and the large pawl may be stuck at the same time, resulting in failure of the secondary anti-fall protection. Therefore, a new secondary anti-fall structure for attached lifting scaffolding is needed. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a secondary anti-fall structure for an attached lifting scaffold. By removing the small pawl and replacing it with a tension spring to pull the pawl, the overall size of the optimized anti-fall device has not changed significantly. The cooperation of large and small pawls is changed to a single pawl equipped with a tension spring and a buckle. When working, the pawl remains in an extended state under the tension of the tension spring, so that it is more convenient for the attached support to clamp the frame round rod. When the frame body needs to be lifted, that is, when the lifting system is working, the pawl does not interfere with the rising of the frame body. When the frame body suddenly falls, the pawl can quickly clamp the frame round rod nearest to the pawl. Under the action of the buckle, the scaffold is stuck to prevent secondary falling, thereby eliminating the impact of the two pawls working and achieving effective anti-fall at all times.

[0006] The technical solution for achieving the purpose of the utility model is: a secondary anti-fall structure of an attached lifting scaffold, including a frame body, a wall-mounted support is provided on the outer side of the frame body through roller sliding, the roller and the wall-mounted support are fixedly connected by two sets of bolts one and nuts one, a fall arrester is provided on the lower side of the wall-mounted support, and also includes: a tension spring, one end of the tension spring is fixed to the lower side of the wall-mounted support; a pawl is rotatably installed between the fall arresters by bolt two and nut two, and one end of the pawl is fixedly connected to the other end of the tension spring.

[0007] In some embodiments, a top support is installed on one side of the wall-mounted support, and the other end of the top support is connected to the frame body.

[0008] In some embodiments, one end of the pawl abuts against a frame round rod inside the frame body.

[0009] In some embodiments, the specific model of the bolt 1 is M20×50, and the specific model of the bolt 2 is M20×16.

[0010] In some embodiments, a plurality of through holes are formed on the inner side of the wall-mounted support.

[0011] Compared with the prior art, the present invention has the following significant advantages:

[0012] The utility model removes the small pawl and uses a tension spring to pull the pawl instead. The overall size of the optimized fall arrester does not change significantly. The cooperation of the large and small pawls is changed to a single pawl equipped with a tension spring and a buckle. When working, the pawl remains in an extended state under the tension of the tension spring, so that it is more convenient for the attached support to clamp the frame body round rod. When the frame body needs to be lifted, that is, when the lifting system is working, the pawl does not interfere with the lifting of the frame body. When the frame body suddenly falls, the pawl can quickly clamp the frame body round rod above the pawl. Under the action of the buckle, the scaffold is clamped to prevent secondary falling, thereby eliminating the influence of the work of the two pawls and achieving effective fall prevention at all times.

[0013] The present invention solves the problem that in actual operation, the small pawl and the large pawl may be stuck at the same time due to the height of the floor, resulting in failure of the secondary fall prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the overall structure provided in one embodiment of the present invention.

[0016] Description of reference numerals:

[0017] 1. Frame body; 2. Wall support; 3. Roller; 4. Bolt 1; 5. Nut 1; 6. Fall arrester; 7. Ratchet; 8. Tension spring; 9. Bolt 2; 10. Nut 2; 11. Support. DETAILED DESCRIPTION

[0018] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The utility model provides a secondary anti-falling structure for an attached lifting scaffold through improvement. The technical solution of the utility model is:

[0020] like Figure 1 When the scaffolding is lifted up, the pawl 7 is tightened to the bottom of the scaffolding and the scaffolding is tightened to the bottom of the scaffolding.

[0021] like Figure 1 As shown, in one embodiment, a top support 11 is installed on one side of the wall-mounted support 2 , and the other end of the top support 11 is connected to the frame body 1 .

[0022] like Figure 1 As shown, in one embodiment, one end of the pawl 7 abuts against the frame round rod inside the frame body 1, ensuring the anti-fall effect.

[0023] like Figure 1 As shown, in one embodiment, the specific model of bolt 1 4 is M20×50, which is suitable for connections requiring a longer length, and the specific model of bolt 2 9 is M20×16, which is suitable for connections requiring a shorter length.

[0024] like Figure 1 As shown, in one embodiment, a plurality of through holes are opened on the inner side of the wall-mounted support 2 .

[0025] The specific working method is: when working, the pawl 7 remains in an extended state under the tension of the tension spring 8, so that it is more convenient for the wall-mounted support 2 to clamp the frame round rod inside the frame body 1. When the frame body 1 needs to be lifted, that is, when the lifting system is working, the pawl 7 does not interfere with the rising of the frame body 1. When the frame body 1 suddenly falls, the pawl 7 can quickly clamp the frame round rod closest to the pawl 7 above the pawl 7. Under the action of the buckle, the scaffolding is locked to prevent it from falling again.

[0026] The technical means disclosed in the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A secondary anti-falling structure for an attached lifting scaffold, comprising a frame body (1), a wall-mounted support (2) being slidably provided on the outer side of the frame body (1) via a roller (3), the roller (3) and the wall-mounted support (2) being fixedly connected via two sets of bolts (4) and nuts (5), a fall arrester (6) being provided on the lower side of the wall-mounted support (2), and characterized in that: Also includes: A tension spring (8), one end of which is fixed to the lower side of the wall-mounted support (2); A ratchet (7) is rotatably mounted between the fall arrester (6) via a second bolt (9) and a second nut (10), and one end of the ratchet (7) is fixedly connected to the other end of a tension spring (8).

2. The secondary anti-falling structure of the attached lifting scaffold according to claim 1 is characterized in that: A top support (11) is installed on one side of the wall-mounted support (2), and the other end of the top support (11) is connected to the frame body (1).

3. The secondary anti-falling structure of the attached lifting scaffold according to claim 1 is characterized in that: One end of the ratchet (7) abuts against the frame round rod inside the frame body (1).

4. The secondary anti-falling structure of the attached lifting scaffold according to claim 1 is characterized in that: The specific model of the bolt 1 (4) is M20×50, and the specific model of the bolt 2 (9) is M20×16.

5. The secondary anti-falling structure of the attached lifting scaffold according to claim 1 is characterized in that: A plurality of through holes are provided on the inner side of the wall-attached support (2).

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