Steel structure engineering construction anti-falling device
By introducing extendable support plates and buffer components into the fall protection device for steel structure engineering construction, the problems of poor fall buffering effect and inconvenience of working in the basket in the existing device have been solved, realizing efficient construction fall protection and simple maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINO PHARMENGIN
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-16
AI Technical Summary
Existing fall protection devices for steel structure construction have poor fall cushioning effects, making it inconvenient to work inside suspended baskets and resulting in low construction efficiency.
A fall protection device was designed, comprising a liftable basket body, a support assembly, and a buffer assembly. The basket body has a support plate that can extend beyond the protected area. The extension of the support plate is achieved by a motor-driven screw transmission. A limit block is provided on the support plate, and a buffer assembly is provided at the bottom of the basket to absorb impact force.
It improves the efficiency of construction workers working outside the suspended platform, enhances fall protection, reduces impact through buffer components, and has a simple structure that is easy to maintain.
Smart Images

Figure CN224363676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-altitude fall protection technology, specifically a fall protection device for steel structure engineering construction. Background Technology
[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. They are primarily composed of beams, columns, and trusses made of steel sections and plates, and undergo rust removal and prevention processes such as silanization, pure manganese phosphating, washing and drying, and galvanizing. They are widely used in the construction of large factories, stadiums, and high-rise buildings. However, steel structures require fall arrestors during construction to prevent workers from accidentally falling. Existing fall arrestors have poor fall cushioning effects and make it difficult for workers to enter the suspended platform.
[0003] Furthermore, when using existing steel structure construction fall protection devices, because the rear outer surface of the construction scaffold is movably installed with a scaffold gate, users can open the scaffold gate and enter the construction scaffold, but it is inconvenient to stick their bodies out to work. Users can only work inside the scaffold, resulting in low work efficiency and poor performance. Utility Model Content
[0004] The purpose of this utility model is to provide a fall prevention device for steel structure construction, which can at least solve some of the defects in the existing technology.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a steel structure construction anti-fall device, comprising a liftable suspended basket body, the suspended basket body having multiple side walls that enclose a protective zone, the side walls being provided with safety buckles or safety ropes for connection to a suspension frame, and the suspended basket body also being provided with support components that can at least partially extend outside the protective zone.
[0006] Furthermore, the support assembly includes a support plate, and the bottom of the suspended basket body is provided with a compartment for the support plate to slide. The compartment has an opening on one of its side walls, and the support plate extends out of the protective area through the opening.
[0007] Furthermore, the support assembly also includes a first lead screw that is threadedly connected to the support plate, and one end of the first lead screw is connected to the output end of the motor.
[0008] Furthermore, the support assembly also includes a slide bar disposed on the support plate, the slide bar extending in the same direction as the support plate extending outward.
[0009] Furthermore, a limiting block is provided on the inner wall of the compartment, and a groove is provided on the support plate for the limiting block to be embedded in. The limiting block is slidably disposed in the groove, and one end of the groove is spaced from one side of the support plate, which is the opposite side of the side of the support plate that extends out of the protection zone.
[0010] Furthermore, the bottom of the suspended basket body is provided with a buffer assembly for absorbing the impact force generated by the falling of the suspended basket body.
[0011] Furthermore, the buffer assembly includes a mounting frame and a convex gasket, with the mounting frame fixedly sleeved on the convex gasket.
[0012] Furthermore, the buffer assembly also includes a second lead screw, multiple side plates, and two threaded sleeves. Each side plate is fixedly installed on both sides of the mounting frame. One end of the second lead screw passes through one of the opposite side plates. Both threaded sleeves are movably fitted onto the second lead screw. Each of the remaining side plates is movably fitted with a retaining sleeve, and each retaining sleeve is fixedly installed on both sides of the bottom of the suspended basket body.
[0013] Furthermore, the convex gasket is detachably connected to the mounting frame.
[0014] Furthermore, the top of the suspended platform is provided with a suspended ceiling, and the suspended ceiling is provided with lifting rings.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. By connecting safety buckles or safety ropes to the suspension frame, users are connected through safety buckles or safety ropes, further preventing users from falling from the main body of the suspended platform. With the use of support components, users can work outside the protected area. The operation is simple, effectively improving work efficiency and providing good results.
[0017] 2. The convex gasket can absorb the impact force generated by the fall of the suspended platform, thus cushioning the suspended platform.
[0018] 3. Rotate the threaded sleeve away from the second lead screw, move the second lead screw horizontally away from the mounting frame, thereby releasing the fixing between the mounting frame and the base plate, and disassembling and replacing the convex gasket. The structure is simple and easy to use. Attached Figure Description
[0019] Figure 1 A first-view structural schematic diagram of a steel structure construction fall protection device provided for an embodiment of this utility model;
[0020] Figure 2 A second-view structural schematic diagram of a steel structure construction fall protection device provided for an embodiment of this utility model;
[0021] Figure 3 A schematic diagram of a steel structure construction fall arrest device without supporting components, provided for an embodiment of this utility model;
[0022] Figure 4 A schematic diagram of a buffer component structure for a steel structure construction fall protection device provided in this embodiment of the present invention;
[0023] Figure 5 A schematic diagram of the support component structure of a steel structure construction fall prevention device provided for an embodiment of this utility model;
[0024] In the attached drawings, the following are the reference numerals: 1. Suspended basket body; 2. Connecting frame; 3. Ceiling; 4. Lifting ring; 5. Suspension frame; 6. Basket door; 7. Base plate; 8. Support assembly; 9. Buffer assembly; 10. Sleeve; 11. Limiting block; 12. Protective frame; 801. Motor; 802. First lead screw; 803. Support plate; 804. Slide rod; 901. Mounting frame; 902. Second lead screw; 903. Side plate; 904. Threaded sleeve; 905. Convex gasket. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0026] Please see Figures 1 to 5This utility model provides a steel structure construction anti-fall device, including a suspended basket body 1, four connecting frames 2, a ceiling 3, and three lifting rings 4. The suspended basket body 1 and the ceiling 3 are fixed together by the four connecting frames 2. The three lifting rings 4 are all fixedly installed on the top of the ceiling 3. The suspended basket body 1 has multiple side walls that enclose and form a protective area. For example, four side walls are used in conjunction with the basket bottom to form a cuboid protective area. The side walls are provided with safety buckles or safety ropes to be connected to the suspension frame 5. The suspended basket body 1 is also provided with a support component 8 that can extend at least partially outside the protective area. A base plate 7 is fixedly connected to the bottom of the suspended platform body 1. The support assembly 8 is installed inside the base plate 7. The support assembly 8 includes a motor 801, a first lead screw 802, a support plate 803, and two sliding rods 804. The motor 801 is fixedly installed on the rear side of the base plate 7, and the output shaft end of the motor 801 is fixedly connected to the first lead screw 802. One end of the first lead screw 802 and one end of each of the two sliding rods 804 penetrates the support plate 803, and the other ends of each of the two sliding rods 804 are fixedly connected to the base plate 7. In this embodiment, by connecting a safety buckle or safety rope to the suspension frame 5, the user is connected via the safety buckle or safety rope, further preventing the user from falling from the suspended platform body 1. Using the support assembly 8, the user can work outside the protected area, making operation simple, effectively improving work efficiency, and providing good performance. The support plate 803 is slidably positioned in the compartment formed at the bottom of the suspended platform body 1 by the motor 801 driven by a lead screw drive. The compartment has an opening in one of its side walls, and the support plate 803 extends out of the protected area through the opening. In a preferred embodiment, for safety, the support plate 803 may not extend completely; a portion may remain inside the compartment. This can be achieved by providing limiting blocks 11, such as four limiting blocks 11 fixedly connected inside the base plate 7, with all four limiting blocks 11 extending into the support plate 803. Specifically, the support plate 803 has grooves for the limiting blocks 11 to be inserted into, and the limiting blocks 11 are slidably disposed in the grooves. One end of the groove is spaced from one side of the support plate, which is the opposite side of the side of the support plate extending out of the protected area (i.e.,...). Figure 5 This side of the Zhongdian 801 (such as...) Figure 5 As shown, the groove on the side of the motor 801 does not extend to the edge of the support plate 803, meaning that the support plate 803 will not slide out of the compartment at this point. Preferably, a protective frame 12 is movably provided on the rear side of the motor 801, and the protective frame 12 is fixedly installed on the rear side of the base plate 7. The front side of the suspended basket body 1 is movably connected to the basket door 6 via a hinge, and the other side of the basket door 6 is locked to the suspended basket body 1 via a connecting lock.
[0027] As an optimized solution of this utility model embodiment, please refer to Figures 1 to 5The bottom of the suspended basket body 1 is provided with a buffer assembly 9 for absorbing the impact force generated by the fall of the suspended basket body 1. Specifically, a buffer assembly 9 can be provided at the bottom of the base plate 7. The buffer assembly 9 includes a mounting frame 901, a second lead screw 902, multiple side plates 903, two threaded sleeves 904, and a convex washer 905. The mounting frame 901 is fixedly sleeved on the convex washer 905. The multiple side plates 903 are respectively fixedly installed on both sides of the mounting frame 901. One end of the second lead screw 902 passes through two of the side plates 903. Both threaded sleeves 904 are movably sleeved on the second lead screw 902. The other four side plates 903 are each movably sleeved with a retaining sleeve 10, and the four retaining sleeves 10 are respectively fixedly installed on both sides of the base plate 7. When the main body 1 of the suspended platform falls and comes into contact with the ground, the convex gasket 905 can absorb the impact force generated by the fall, thereby buffering the main body 1 of the suspended platform. Rotating the threaded sleeve 904 and moving it away from the second lead screw 902, and moving the second lead screw 902 horizontally and moving it away from the mounting frame 901, thereby releasing the fixation between the mounting frame 901 and the base plate 7, and disassembling and replacing the convex gasket 905. The structure is simple and easy to use. Similarly, the mounting frame 901 is installed. The four clamps 10 and the four side plates 903 cooperate to improve the stability between the mounting frame 901 and the base plate 7.
[0028] The usage method of this embodiment is as follows:
[0029] In use, the lifting ring 4 is connected to the external lifting equipment via a steel cable. The user opens the basket door 6 and stands inside the main body 1 of the suspended basket. The external lifting equipment drives the main body 1 of the suspended basket to move vertically. The safety buckle or safety rope is connected to the suspension frame 5 to connect the user and further prevent the user from falling from the main body 1 of the suspended basket. The motor 801 is started, and the motor 801 drives the first lead screw 802 to rotate. Since the first lead screw 802 is threadedly connected to the support plate 803, and the two sliding rods 804 restrict the rotation of the support plate 803, the first lead screw 802 can drive the support plate 803 to move horizontally. The user can stand on the support plate 803 to work. The operation is simple and effectively improves the work efficiency. The effect is good. At the same time, the four limit blocks 11 limit the support plate 803 to prevent the support plate 803 from moving out of the bottom plate 7. The protective frame 12 protects the motor 801.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fall protection device for steel structure construction, comprising a liftable suspended platform, characterized in that: The main body of the suspended platform has multiple side walls that enclose and form a protective zone. The side walls are provided with safety buckles or safety ropes for connection to the suspension frame. The main body of the suspended platform is also provided with support components that can extend at least partially outside the protective zone.
2. The anti-fall device for steel structure construction as described in claim 1, characterized in that: The support assembly includes a support plate, and the bottom of the suspended basket body is provided with a compartment for the support plate to slide. The compartment has an opening on one of its side walls, and the support plate extends out of the protective area through the opening.
3. The anti-fall device for steel structure construction as described in claim 2, characterized in that: The support assembly also includes a first lead screw that is threadedly connected to the support plate, and one end of the first lead screw is connected to the output end of the motor.
4. The anti-fall device for steel structure construction as described in claim 2, characterized in that: The support assembly also includes a slide bar disposed on the support plate, the slide bar extending in the same direction as the support plate extending outward.
5. The anti-fall device for steel structure construction as described in claim 2, characterized in that: The inner wall of the compartment is provided with a limiting block, and the support plate has a groove for the limiting block to be embedded in. The limiting block is slidably disposed in the groove. One end of the groove is spaced from one side of the support plate, which is the opposite side of the side of the support plate that extends out of the protection zone.
6. The anti-fall device for steel structure construction as described in claim 1, characterized in that: The bottom of the suspended basket body is equipped with a buffer component to absorb the impact force generated by the falling of the suspended basket body.
7. The anti-fall device for steel structure construction as described in claim 6, characterized in that: The buffer assembly includes a mounting frame and a convex gasket, with the mounting frame fixedly fitted onto the convex gasket.
8. The anti-fall device for steel structure construction as described in claim 7, characterized in that: The buffer assembly also includes a second lead screw, multiple side plates, and two threaded sleeves. Each side plate is fixedly installed on both sides of the mounting frame. One end of the second lead screw passes through one of the opposite side plates. Both threaded sleeves are movably fitted on the second lead screw. Each of the remaining side plates is movably fitted with a retaining sleeve, and each retaining sleeve is fixedly installed on both sides of the bottom of the suspended basket body.
9. The anti-fall device for steel structure construction as described in claim 7, characterized in that: The convex gasket is detachably connected to the mounting frame.
10. The anti-fall device for steel structure construction as described in claim 1, characterized in that: The main body of the suspended platform is equipped with a suspended ceiling, and the suspended ceiling is equipped with lifting rings.