Anti-falling device for water conservancy dam construction
By introducing I-beam structures and multiple protective mechanisms into the fall prevention device for water conservancy dam construction, the problems of simple structure and poor support of existing devices have been solved, achieving a highly efficient multi-protection effect and ensuring the safety of construction personnel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG AGRICULTURAL UNIVERSITY
- Filing Date
- 2025-08-11
- Publication Date
- 2026-05-15
AI Technical Summary
Existing fall protection devices for water conservancy dam construction have simple structural designs, poor main support, and lack multiple safety mechanisms, making them ineffective in preventing falls by workers at heights.
It adopts an I-beam structure, combined with positioning angle irons, limiting grooves, limiting connecting plates, columns, barrier nets, safety hooks, and track rods to form a multi-layered protection mechanism, including safety ropes and fall protection nets, which improves connection strength and fall prevention effect.
By combining multiple protective mechanisms, the load-bearing capacity and long-term stable operation of the fall protection device are significantly improved, achieving multi-directional and multi-type protection to ensure the safety of construction personnel.
Smart Images
Figure CN224244395U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy dam safety protection technology, specifically a fall prevention device for water conservancy dam construction. Background Technology
[0002] During the construction of water conservancy dams, fall arrest devices are key facilities to ensure the safety of workers at height. By installing fall arrest devices on the high-altitude work surface, the path of accidental fall is blocked. Even if a person loses stability, fall arrestors, safety ropes and other devices can quickly lock and control the fall distance within a safe range to avoid serious injury or death.
[0003] Existing fall protection devices for dam construction, such as the Chinese utility model patent CN222161130U entitled "A Fall Protection Device for Dam Construction," include threaded sleeves, bolt rods, a support assembly, a protective assembly, and a safety net assembly. Multiple threaded sleeves, spaced apart, are embedded in the dam sidewall. Multiple bolt rods are positioned corresponding to each threaded sleeve, passing through the support assembly and connecting to the threaded sleeves. Scaffold boards are laid on top of the support assembly, with a protective assembly on the exposed side to prevent falls. The safety net assembly is located below the support assembly, and its width is greater than that of the support assembly. This patented design is overly simplistic, lacks robust structural support, has a single safety mechanism, and lacks installation mechanisms for fall arrestors, safety ropes, etc., failing to meet practical protection requirements. To address these issues, an innovative design is proposed based on existing fall protection devices for dam construction. Utility Model Content
[0004] The purpose of this utility model is to provide a fall prevention device for water conservancy dam construction, so as to solve at least one of the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fall prevention device for water conservancy dam construction, comprising an I-beam, wherein a positioning angle iron is fixedly installed on the vertical part of the rear end of the I-beam by a horizontal bolt, an upper anchor bolt is installed at the end of the positioning angle iron, and a scaffold board is provided on the top of the I-beam;
[0006] The edge of the scaffold board is provided with a limiting groove, a limiting connecting plate is installed in the limiting groove, a top bolt is installed through the limiting connecting plate, the bottom end of the top bolt is connected to the top of the I-beam, a column is fixed at the front end of the top of the I-beam, and a blocking net is installed on the side of the column;
[0007] A safety net is fitted to the bottom end of the I-beam, and a support plate is provided at the bottom end of the safety net. The top of the support plate is connected and fixed to the safety net and the bottom end of the I-beam by locking bolts. A reinforcing plate is fixed in the middle of the inner side of the support plate, and lower anchor bolts are installed on both sides of the vertical part of the support plate.
[0008] Preferably, the limiting grooves are symmetrically distributed about the center of the limiting connecting plate, the top view shape of the limiting grooves is an isosceles trapezoid, and the width of the center of the limiting connecting plate is smaller than the width of the two ends of the limiting connecting plate.
[0009] Preferably, the thickness of the limiting connecting plate is greater than half the thickness of the scaffold board, and the limiting connecting plates are symmetrically distributed about the center of the scaffold board.
[0010] Preferably, a T-shaped iron is fixed to the rear side of the top of the column, and a safety hook track rod is installed at the end of the T-shaped iron.
[0011] Preferably, a main safety rope is fixed to the top side of the support plate, and a secondary safety rope is installed on the side of the main safety rope.
[0012] Preferably, the main safety ropes are evenly spaced, and secondary safety ropes are evenly spaced between the equally spaced main safety ropes.
[0013] Preferably, a front mounting rod is fixed to the front end of the I-beam, a tension plate is fixedly installed between the top of the bottom end of the front mounting rod and the front end of the I-beam, and a fall protection net is installed on the side of the front mounting rod.
[0014] Preferably, the center of the front mounting rod and the center of the I-beam are on the same vertical plane, and the front mounting rod is inclined upward.
[0015] The fall prevention device for hydraulic dam construction of this utility model has the following beneficial effects:
[0016] The new structural design not only ensures sufficient connection strength between all parts, significantly improving load-bearing capacity and enabling stable operation over a long period of time, but also greatly enhances the anti-fall effect through multiple sets of protective and safety mechanisms in conjunction with the safety hook installation mechanism.
[0017] 1. The I-beams are supported and positioned by positioning angle irons and support plates. The scaffold boards are stably installed and horizontally limited by limiting grooves, limiting connecting plates and top bolts to ensure the stability of the main construction structure. The foundation is blocked and protected by columns, barrier nets, T-shaped irons and safety hook rail rods and the safety hooks are installed.
[0018] 2. Through a multi-layered protective mechanism consisting of a safety net, main safety rope, auxiliary safety rope, front mounting pole, traction plate, and fall arrest net, construction workers standing on the scaffolding are protected from falls in multiple directions and in various ways, greatly improving the effectiveness of fall protection. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a front view structural diagram of the present invention;
[0021] Figure 2 This is a frontal cross-sectional view of the present invention.
[0022] Figure 3 This is a top view of the limiting groove and limiting connecting plate of this utility model;
[0023] Figure 4 This is a side view sectional structural diagram of the present invention;
[0024] Figure 5 This is a top view schematic diagram of the front mounting rod, pull plate, and fall protection net of this utility model.
[0025] [Explanation of Key Component Symbols]
[0026] 1. I-beam; 2. Horizontal bolt; 3. Positioning angle iron; 4. Upper anchor bolt; 5. Scaffold board; 6. Limiting groove; 7. Limiting connecting plate; 8. Top bolt; 9. Column; 10. Barrier net; 11. T-shaped iron; 12. Safety hook track rod; 13. Safety net; 14. Support plate; 15. Locking bolt; 16. Reinforcing plate; 17. Lower anchor bolt; 18. Main safety rope; 19. Secondary safety rope; 20. Front mounting rod; 21. Pull plate; 22. Fall protection net. Detailed Implementation
[0027] The following description, in conjunction with the accompanying drawings and embodiments of the present invention, provides a more detailed explanation of the anti-fall device for water conservancy dam construction.
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0031] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0032] Please see Figure 1-5 This utility model provides a technical solution: a fall prevention device for water conservancy dam construction, including an I-beam 1, a transverse bolt 2, a positioning angle iron 3, an upper anchor bolt 4, a scaffold board 5, a limiting groove 6, a limiting connecting plate 7, a top bolt 8, a column 9, a barrier net 10, a T-shaped iron 11, a safety hook track rod 12, a safety net 13, a support plate 14, a locking bolt 15, a reinforcing plate 16, a lower anchor bolt 17, a main safety rope 18, a secondary safety rope 19, a front mounting rod 20, a traction plate 21, and a fall prevention net 22. The vertical part at the rear end of the I-beam 1 is fixedly installed with a positioning angle iron 3 by the transverse bolt 2. The upper anchor bolt 4 is installed at the end of the positioning angle iron 3. A scaffold board 5 is set on the top of the I-beam 1.
[0033] A limiting groove 6 is provided on the edge of the scaffold board 5. A limiting connecting plate 7 is installed in the limiting groove 6. A top bolt 8 is installed through the limiting connecting plate 7. The bottom end of the top bolt 8 is connected to the top of the I-beam 1. A column 9 is fixed at the front end of the top of the I-beam 1. A blocking net 10 is installed on the side of the column 9.
[0034] A safety net 13 is fitted to the bottom of the I-beam 1. A support plate 14 is provided at the bottom of the safety net 13. The top of the support plate 14 is connected and fixed to the safety net 13 and the bottom of the I-beam 1 by locking bolts 15. A reinforcing plate 16 is fixed in the middle of the inner side of the support plate 14. Lower anchor bolts 17 are installed on both sides of the vertical part of the support plate 14.
[0035] In this example, the limiting groove 6 is symmetrically distributed about the center of the limiting connecting plate 7. The top view shape of the limiting groove 6 is an isosceles trapezoid. The width of the center of the limiting connecting plate 7 is smaller than the width of both ends of the limiting connecting plate 7. The above structural design enables the limiting groove 6 to fit stably with the limiting connecting plate 7 and restricts the position of the scaffold board 5 through the limiting groove 6.
[0036] In this example, the thickness of the limiting connecting plate 7 is greater than half the thickness of the scaffold board 5. The limiting connecting plate 7 is symmetrically distributed about the center of the scaffold board 5. The above structural design makes the limiting connecting plate 7 have high structural strength and can stably install the scaffold board 5.
[0037] In this example, a T-shaped iron 11 is fixed to the rear side of the top of the column 9, and a safety hook track rod 12 is installed at the end of the T-shaped iron 11. The above structural design can stably install the safety hook and facilitate the sliding displacement of the safety hook.
[0038] In this example, the main safety rope 18 is fixed to the top side of the support plate 14, and the auxiliary safety rope 19 is installed on the side of the main safety rope 18. The above structural design can protect the gap between the support plates 14 from the bottom, and prevent personnel or tools from falling after the scaffolding board 5 is damaged.
[0039] In this example, the main safety ropes 18 are evenly spaced, and secondary safety ropes 19 are evenly spaced between the equally spaced main safety ropes 18. The above structural design gives the main safety ropes 18 and secondary safety ropes 19 excellent interception performance, which can effectively prevent falls.
[0040] In this example, the front end of the I-beam 1 is fixed with a front mounting rod 20. A tension plate 21 is fixedly installed between the bottom and top of the front mounting rod 20 and the front end of the I-beam 1. A fall protection net 22 is installed on the side of the front mounting rod 20. The above structural design can prevent personnel or tools from falling directly when crossing the safety net 13.
[0041] In this example, the center of the front mounting rod 20 and the center of the I-beam 1 are on the same vertical plane. The front mounting rod 20 is set at an upward angle. The above structural design enhances the protective effect of the fall arrest net 22 and can prevent people or tools from rolling and falling after landing on the fall arrest net 22.
[0042] Working principle: During installation, the positioning angle iron 3 is first fixed to one end of the I-beam 1 with the horizontal bolt 2. Then, the safety net 13 is attached to the bottom end of the I-beam 1 and the top end of the support plate 14 is connected and fixed to the bottom end of the I-beam 1 with the locking bolt 15. The upper anchor bolt 4 and the lower anchor bolt 17 are used to fix the I-beam 1 and the support plate 14 on the construction surface of the water conservancy dam. The main safety rope 18 and the auxiliary safety rope 19 are installed between adjacent support plates 14.
[0043] Then, scaffold boards 5 are laid on the top surface of the I-beam 1. The limiting grooves 6 at both ends of the scaffold boards 5 are aligned, the limiting connecting plates 7 are inserted and fixed with top bolts 8. Next, the front mounting rods 20 and the traction plates 21 are fixedly installed at the front end of the I-beam 1, and the fall protection net 22 is fixed between the front mounting rods 20. The column 9 is fixed at the front end of the top surface of the I-beam 1. The blocking nets 10 are installed on both sides of the column 9, and the safety hook rail rods 12 are installed on the side of the column 9 near the construction surface of the water conservancy dam using T-shaped iron 11.
[0044] In use, personnel, tools, and equipment can work and move stably on the scaffold plank 5. The uprights 9 and the barrier net 10 have a strong blocking and protective effect. The safety hook track rod 12 can stably install the safety hooks on the personnel's clothing. The safety net 13, the main safety rope 18, and the auxiliary safety rope 19 can provide double protection when the scaffold plank 5 is damaged and personnel fall vertically. The fall protection net 22 can prevent personnel, tools, and equipment from falling over the barrier net 10.
[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.
Claims
1. A fall prevention device for water conservancy dam construction, characterized in that, include: I-beam (1), the vertical part of the rear end of the I-beam (1) is fixedly installed with a positioning angle iron (3) by a horizontal bolt (2), the end of the positioning angle iron (3) is installed with an upper anchor bolt (4), and a scaffold board (5) is provided on the top of the I-beam (1). The edge of the scaffold board (5) is provided with a limiting groove (6), and a limiting connecting plate (7) is installed in the limiting groove (6). A top bolt (8) is installed through the limiting connecting plate (7). The bottom end of the top bolt (8) is connected to the top of the I-beam (1). A column (9) is fixed at the front end of the top of the I-beam (1). A barrier net (10) is installed on the side of the column (9). A safety net (13) is attached to the bottom end of the I-beam (1). A support plate (14) is provided at the bottom end of the safety net (13). The top of the support plate (14) is connected and fixed to the safety net (13) and the bottom end of the I-beam (1) by locking bolts (15). A reinforcing plate (16) is fixed in the middle of the inner side of the support plate (14). Lower anchor bolts (17) are installed on both sides of the vertical part of the support plate (14).
2. The anti-fall device for water conservancy dam construction according to claim 1, characterized in that: The limiting groove (6) is symmetrically distributed about the center of the limiting connecting plate (7), and the top view shape of the limiting groove (6) is an isosceles trapezoid.
3. The anti-fall device for water conservancy dam construction according to claim 1, characterized in that: The thickness of the limiting connecting plate (7) is greater than half the thickness of the scaffold board (5). The limiting connecting plate (7) is symmetrically distributed about the center of the scaffold board (5). The width of the center of the limiting connecting plate (7) is less than the width of both ends of the limiting connecting plate (7).
4. The anti-fall device for water conservancy dam construction according to claim 1, characterized in that: A T-shaped iron (11) is fixed to the rear side of the top of the column (9), and a safety hook rail rod (12) is installed at the end of the T-shaped iron (11).
5. A fall prevention device for water conservancy dam construction according to claim 1, characterized in that: The main safety rope (18) is fixed to the top side of the support plate (14), and the auxiliary safety rope (19) is installed on the side of the main safety rope (18).
6. A fall prevention device for water conservancy dam construction according to claim 5, characterized in that: The main safety ropes (18) are evenly spaced, and secondary safety ropes (19) are evenly spaced between the equally spaced main safety ropes (18).
7. The anti-fall device for water conservancy dam construction according to claim 1, characterized in that: The front end of the I-beam (1) is fixed with a front mounting rod (20), and a tension plate (21) is fixedly installed between the top of the bottom end of the front mounting rod (20) and the front end of the I-beam (1). A fall protection net (22) is installed on the side of the front mounting rod (20).
8. A fall prevention device for water conservancy dam construction according to claim 7, characterized in that: The center of the front mounting rod (20) and the center of the I-beam (1) are on the same vertical plane, and the front mounting rod (20) is inclined upward.