Safety anti-falling device for construction
By designing a safety fall prevention device with multi-layered buffer mesh and air bags, the problem of poor protection in existing technologies has been solved, and effective buffer protection for construction workers has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHAOYUAN EDUCATION CONSTRUCTION & INSTALLATION CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-15
AI Technical Summary
Existing fall protection methods at construction sites are inadequate and cannot effectively protect construction workers from the threat of falling from heights.
Design a safety fall arrest device including parallel fixed components, staggered buffer belts, buffer nets and buffer airbags, to cushion falling personnel through a multi-layered buffer structure, and to provide progressively increasing resistance using springs and airbags to slow down the fall speed.
It effectively slows down the descent speed of falling personnel, prevents injury from sudden and extreme pressure, provides multi-layered cushioning protection, and improves construction safety.
Smart Images
Figure CN224244463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of safety or protection measures for personnel during construction, and specifically to a safety fall prevention device used in construction. Background Technology
[0002] A construction site is a location where a construction project is underway and civil engineering work is being carried out. It is typically enclosed by barriers, wire mesh, or walls, restricting the entry and exit of personnel, materials, machinery, and vehicles. Before entering the construction site, all construction workers must undergo training and assessment in construction safety and fire prevention.
[0003] Falling objects from heights pose a serious threat, and preventing such threats to construction workers is a crucial construction safety issue. Whether it's objects falling from a height, such as building materials or tools, or construction workers falling from a height, they all pose a serious threat to the workers' health and have a high probability of endangering their lives.
[0004] Current technologies for preventing falls on construction sites often involve setting up fall nets. However, for such a critical issue as life safety, this method of protection is limited and ineffective. Falls can still cause significant impacts on workers and result in substantial damage to their organs. Utility Model Content
[0005] In view of the technical problems of existing fall protection methods being limited in scope and having poor protective effect, this utility model provides a safety fall protection device for construction, which can protect construction workers in the event of an accidental fall.
[0006] This utility model provides a safety fall arrest device for construction, comprising two rows of parallel fixed components, a first buffer net area between the two rows of fixed components, the first buffer net area comprising multiple interlaced first buffer nets, a second buffer net below the first buffer nets, and a third buffer air bag below the second buffer nets; the fixed components comprise multiple parallel uprights, the ends of the second buffer nets are fixedly connected to the fixed components; an adjusting rod is fixedly connected to the ends of the first buffer nets, one end of the adjusting rod is hinged to the uprights, and a spring is connected between the adjusting rod and the uprights.
[0007] Furthermore, the adjusting rod has a groove, in which a slider is slidably connected and engaged. The slider is fixedly connected to one end of a spring, and the other end of the spring is fixedly connected to a column.
[0008] Furthermore, the third buffer airbag consists of multiple independent air bladders, each with its own independent inflation and deflation ports.
[0009] Furthermore, multiple parallel buffer mesh belts 1 and multiple parallel buffer mesh belts 2 are arranged between the two rows of fixed components, with the buffer mesh belts 1 and 2 intersecting each other.
[0010] Furthermore, buffer mesh belt one and buffer mesh belt two are intersected to form a single-layer first buffer mesh belt area, and at least two layers of first buffer mesh belt areas are provided between the two rows of fixed components.
[0011] Furthermore, multiple horizontal support columns are installed between the multiple columns in a single row, and the horizontal support columns are fixedly connected to the columns.
[0012] Furthermore, the horizontal support column includes a lower support column, which is fixedly connected to the lower end of the upright column and is also equipped with a fixing frame. The beneficial effects of this utility model are:
[0013] The second buffer net, the first buffer net belt area, and the third buffer airbag work together to cushion the fall and better protect the falling person. The first buffer net belt comes into contact with the falling person and descends with them, acting as a buffer to prevent injury from the falling object or the falling person due to extreme pressure in an instant. The first buffer net belt drives the adjusting rod to rotate away from the column and extends the spring. Due to the spring force, the resistance of the first buffer net belt to the falling object or the falling person gradually increases, slowing down the falling trend of the object or the falling person, thus providing protection. Attached Figure Description
[0014] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0016] Figure 2 This is a schematic diagram of the structure of one embodiment of the first buffer mesh area of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of one embodiment of the second buffer net of this utility model;
[0018] Figure 4 This is a schematic diagram of the structure of one embodiment of the adjusting rod of this utility model.
[0019] Explanation of main reference numerals: 1-First buffer mesh belt area, 11-Buffer mesh belt one, 12-Buffer mesh belt two, 2-Second buffer mesh, 3-Third buffer air bag, 4-Column, 51-First connecting rod, 52-Second connecting rod, 6-Adjusting rod, 61-Slider, 62-Slide groove, 7-Spring, 8-Horizontal support column, 9-Fixing frame. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0021] like Figure 1 As shown, this utility model provides a safety fall arrest device for construction, including two rows of fixed components arranged in parallel, a first buffer net belt area 1 is provided between the two rows of fixed components, the first buffer net belt area 1 includes multiple first buffer net belts arranged in an interlaced manner, a second buffer net 2 is provided below the first buffer net belt, and a third buffer air bag 3 is provided below the second buffer net 2.
[0022] like Figure 2 As shown, multiple parallel buffer mesh belts 11 and multiple parallel buffer mesh belts 2 12 are arranged between the two rows of fixed components. Buffer mesh belts 11 and 2 12 intersect, with an included angle of 30°-90° between them. The intersecting arrangement of buffer mesh belts 11 and 2 12 forms a single-layer first buffer mesh belt area 1. At least two layers of first buffer mesh belt areas 1 are arranged between the two rows of fixed components. An adjusting rod 6 is fixedly connected to the end of each first buffer mesh belt. One end of the adjusting rod 6 is hinged to the column 4, and a spring 7 is connected between the rod body of the adjusting rod 6 and the column 4. Figure 4As shown, the adjusting rod 6 has a groove 62, and a slider 61 is slidably connected within the groove 62. Both the groove 62 and the slider 61 have T-shaped cross-sections perpendicular to the axial direction. The slider 61 is engaged within the groove 62 and is fixedly connected to one end of a spring 7. The other end of the spring 7 is fixedly connected to the column 4. Multiple adjusting rods 6 are connected by a first connecting rod 51. A first buffer net is fixed to either the adjusting rod 6 or the first connecting rod 51. In the event of a fall, during the fall, the first buffer net first contacts the first buffer net area 1. The first buffer net then contacts the falling object or person and descends with it, providing a buffering effect to prevent the falling object or person from being injured by excessive pressure in an instant. The first buffer net causes the adjusting rod 6 to rotate away from the column 4 and pulls the spring 7 to extend. Due to the elastic force of the spring 7, the resistance of the first buffer net to the falling object or person gradually increases, slowing down the descent and thus providing protection. If the first buffer net descends to a certain height or falls through a gap in the first buffer net, and the falling object or person then comes into contact with the second buffer net 2, such as... Figure 3 As shown, the end of the second buffer net 2 is fixedly connected to the column 4 or the horizontal second connecting rod 52. The second connecting rod 52 is fixedly connected to the column 4 and perpendicular to it, increasing the resistance to falling objects or people. For objects or people falling from a greater height, the second buffer net 2 and the first buffer net area 1 work together to impede or stop the falling object or person. In addition, a third layer of protection is set up as the third buffer airbag 3. For objects or people falling from extremely high heights, the third buffer airbag 3 has greater buffering resistance and a gentler buffering force. The combination of the second buffer net 2, the first buffer net area 1, and the third buffer airbag 3 buffers the fall, better protecting the falling object or person.
[0023] The fixing assembly includes multiple parallel columns 4. The ends of the second buffer net 2 are fixedly connected to the fixing assembly, and the columns 4 fix at least four corners of the second buffer net 2, which is suspended at a predetermined height. Multiple transverse support columns 8 are arranged between the columns 4 in a single row, and the transverse support columns 8 are fixedly connected to the columns 4. Each transverse support column 8 includes a lower support column, which is fixedly connected to the lower end of the column 4 and also has a fixing frame 9. The fixing frame 9 is bolted to the ground or other platform, thus fixing the entire device. Fixing via the lower support column provides high fixing efficiency.
[0024] The third buffer airbag 3 consists of multiple independent air bladders, each with its own independent inflation and deflation ports. The reason for using multiple independent air bladders instead of a single, larger air bladder is twofold: firstly, the manufacturing process is simpler and less costly; secondly, damage to a single, large air bladder would have a greater impact, while multiple independent air bladders mean that only a few will be damaged, making replacement easier and minimizing the impact on the buffering effect of the third buffer airbag 3.
[0025] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention.
Claims
1. A safety fall arrest device for construction, characterized in that, The device includes two rows of parallel fixing components, with a first buffer mesh area between the two rows of fixing components. The first buffer mesh area includes multiple interlaced first buffer meshes, a second buffer mesh below the first buffer mesh, and a third buffer air bag below the second buffer mesh. The fixing components include multiple parallel uprights, and the ends of the second buffer mesh are fixedly connected to the fixing components. An adjusting rod is fixedly connected to the ends of the first buffer meshes, one end of which is hinged to the upright, and a spring is connected between the rod and the upright.
2. A safety fall arrest device for construction as described in claim 1, characterized in that, The adjusting rod has a groove, and a slider is slidably connected in the groove and locked in the groove. The slider is fixedly connected to one end of a spring, and the other end of the spring is fixedly connected to a column.
3. A safety fall arrest device for construction as described in claim 1, characterized in that, The third buffer airbag consists of multiple independent air bladders, each with its own inflation and deflation ports.
4. A safety fall arrest device for construction as described in claim 1, characterized in that, Between the two rows of fixed components, there are multiple parallel buffer mesh belts 1 and multiple parallel buffer mesh belts 2, with the buffer mesh belts 1 and 2 intersecting each other.
5. A safety fall arrest device for construction as described in claim 4, characterized in that, Buffer belt one and buffer belt two are intersected to form a single-layer first buffer belt area, and at least two layers of first buffer belt areas are provided between the two rows of fixed components.
6. A safety fall arrest device for construction as described in claim 1, characterized in that, Multiple horizontal support columns are set between multiple upright columns in a single row, and the horizontal support columns are fixedly connected to the upright columns.
7. A safety fall arrest device for construction as described in claim 6, characterized in that, The horizontal support column includes a lower support column, which is fixedly connected to the lower end of the upright column and is also equipped with a fixing frame.