Building construction falling protector convenient to install
By designing an easy-to-install fall arrestor, utilizing snap-fit and locking components to achieve rapid response and simplified disassembly and installation, the problem of slow response and inconvenient disassembly of existing fall arrestors is solved, thus improving safety and convenience.
Patent Information
- Application Number
- CN202423164964.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-21
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-21
AI Technical Summary
Existing fall arrestors have a slow response time when the rope falls, insufficient sensitivity and safety, and are inconvenient to disassemble and install, making replacement time-consuming and laborious.
An easy-to-install fall arrestor was designed, which achieves rapid response through a buckle assembly and a locking assembly, including a buckle ring, buckle post, limit plate, spring and other structures to ensure that the suspension rope is locked quickly, and the buckle assembly simplifies the disassembly and installation process.
It improves the sensitivity and safety of the fall arrestor, enables rapid locking, simplifies the disassembly and installation process, and enhances the ease of replacement.
Smart Images

Figure CN223661421U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction, and in particular to a fall arrestor for building construction that is easy to install. Background Technology
[0002] Building construction is the production activity in the implementation phase of an engineering project, namely the process of building various types of buildings. It begins with foundation construction, including site leveling, foundation treatment, and the construction of various foundations; then comes the main structure construction, encompassing the construction of different structural forms such as concrete, masonry, and steel structures; next is roof construction, including proper base treatment, insulation, and waterproofing; finally, decoration and finishing work is carried out, such as interior plastering and painting. Building construction involves multiple procedures and various technologies, requiring close cooperation among professionals and the use of various building materials and machinery to ensure the quality and safety of the building.
[0003] With the increasing height of buildings, some construction work needs to be carried out at high altitudes. Fall arresters are an essential tool for high-altitude operations and an important device to ensure the safety of workers at heights. However, current fall arresters have a low reaction speed when the rope falls, resulting in low sensitivity and safety. In addition, current fall arresters are inconvenient to disassemble and install, making it time-consuming and laborious for workers to replace them.
[0004] In response to this technical problem, this application proposes a fall arrestor for construction work that is easy to install. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose an easy-to-install fall arrestor for construction. It aims to enable the fall arrestor to respond quickly when the suspension rope falls, thereby improving the sensitivity of the fall arrestor, achieving rapid locking, greatly improving the safety of the fall arrestor, and facilitating the disassembly and installation of the fall arrestor, thus improving the convenience of the fall arrestor replacement.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A construction fall arrestor that is easy to install includes a winding machine with a suspension rope wound around its outer wall. A metal shell is provided on the bottom side of the winding machine, and a base is fixedly connected to the bottom side of the winding machine. The base and the metal shell are connected by a snap-fit assembly for removing the metal shell from the winding machine. A guide rod for guiding the suspension rope is fixedly connected to the top inside of the metal shell, and a locking assembly is provided on the front inside of the metal shell for securing the rapidly falling suspension rope.
[0008] Furthermore, the buckle assembly includes two buckle rings rotatably connected to the bottom side of the base, and a buckle post is fixedly connected to the top side of the metal shell, the buckle post being engaged between the two buckle rings.
[0009] Furthermore, a limiting plate is fixedly connected to the middle of the retaining ring, and a first spring is fixedly connected between the base and the limiting plate. The top end of the first spring is fixedly connected to the bottom side of the base, and the bottom end of the first spring is fixedly connected to the top side of the limiting plate.
[0010] Furthermore, two limiting rods are inserted into the bottom side of the winding machine. The bottom end of the left limiting rod abuts against the top side of the left limiting plate, and the bottom end of the right limiting rod abuts against the top side of the right limiting plate. Insert rods are inserted into the inside of the limiting rods.
[0011] Furthermore, the locking assembly includes a stop bar fixedly connected to the front side inside the metal shell, an impact bar fixedly connected to the bottom side of the stop bar, the impact bar being slidably connected to the inside of the metal shell via a slide bar, and the middle end of the suspension rope being wound around the outer wall of the guide rod and the stop bar from top to bottom.
[0012] Furthermore, a lever is rotatably connected inside the metal shell, with the front end of the lever located below the impact rod. A telescopic rod is fixedly connected to the bottom inside the metal shell, and a washer is fixedly connected to the top end of the telescopic rod. The top side of the washer abuts against the bottom side of the front end of the lever.
[0013] Furthermore, a second spring is fitted on the outer wall of the telescopic rod, with the top end of the second spring fixedly connected to the bottom side of the gasket and the bottom end of the second spring fixedly connected to the inner bottom side of the metal shell.
[0014] Furthermore, an eccentric wheel is rotatably connected inside the metal shell, and a push rod is fixedly connected to the bottom side inside the metal shell. The top end of the push rod abuts against the bottom rear end of the lever, and the top rear end of the lever abuts against the bottom side of the eccentric wheel.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, the front end of the lever is struck by the impact rod, causing the rear end of the lever to tilt upwards, thereby driving the eccentric wheel to rotate. The top side of the eccentric wheel clamps the suspension rope between the guide rod and the eccentric wheel, preventing the suspension rope from continuing to fall. This allows the fall arrestor to respond quickly when the suspension rope falls, thereby improving the sensitivity of the fall arrestor and achieving rapid locking, thus greatly improving the safety of the fall arrestor.
[0017] 2. In this utility model, by engaging the buckle post between two buckle rings, and using the first spring to push the limiting plate to make the buckle rings tightly adhere to the buckle post, the buckle rings can be opened by pressing the limiting plate to compress the first spring, thereby facilitating the disassembly and installation of the fall arrestor and improving the convenience of replacing the fall arrestor. Attached Figure Description
[0018] Figure 1 This is a perspective view of a construction fall arrestor that is easy to install, as proposed in this utility model.
[0019] Figure 2 This is a bottom view of a construction fall arrestor that is easy to install, as proposed in this utility model.
[0020] Figure 3 This utility model provides a schematic diagram of the snap-on column structure for a construction fall arrestor that is easy to install.
[0021] Figure 4 This is a schematic diagram of the internal structure of the metal shell of a construction fall arrestor that is easy to install, as proposed in this utility model.
[0022] Legend:
[0023] 1. Winding machine; 2. Suspension rope; 3. Insertion rod; 4. Metal shell; 5. Base; 6. Buckle post; 7. Snap ring; 8. First spring; 9. Limiting plate; 10. Limiting rod; 11. Guide rod; 12. Sliding rod; 13. Stop bar; 14. Impact rod; 15. Washer; 16. Second spring; 17. Telescopic rod; 18. Lever; 19. Eccentric wheel; 20. Top rod. Detailed Implementation
[0024] 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 protection scope of the present utility model.
[0025] Reference Figures 1-3 This utility model provides an embodiment of a construction fall arrestor that is easy to install, comprising a winding machine 1, with a suspension rope 2 wound around the outer wall of the winding machine 1 for winding the suspension rope 2. A metal shell 4 is provided on the bottom side of the winding machine 1, and a base 5 is fixedly connected to the bottom side of the winding machine 1. (Refer to...) Figure 4 The metal shell 4 has a guide rod 11 fixedly connected to its inner top side for guiding the hoisting rope 2, as shown in the reference. Figure 3Two retaining rings 7 are rotatably connected to the bottom side of the base 5, and a retaining post 6 is fixedly connected to the top side of the metal shell 4. The retaining post 6 engages between the two retaining rings 7. By engaging the retaining post 6 between the two retaining rings 7, the metal shell 4 is fixed to the base 5. A limiting plate 9 is fixedly connected to the middle of the retaining rings 7. A first spring 8 is fixedly connected between the base 5 and the limiting plate 9. The top end of the first spring 8 is fixedly connected to the bottom side of the base 5, and the bottom end of the first spring 8 is fixedly connected to the top side of the limiting plate 9. The first spring 8 makes the retaining rings 7 fit tightly against the retaining post 6, and the limiting plate 9 controls the first spring. 8 is compressed, which causes the limiting plate 9 to rotate with the retaining ring 7, causing the retaining ring 7 to disengage from the buckle post 6. Two limiting rods 10 are inserted into the bottom side of the winding machine 1. The bottom end of the left limiting rod 10 abuts against the top side of the left limiting plate 9, and the bottom end of the right limiting rod 10 abuts against the top side of the right limiting plate 9. An insert rod 3 is inserted inside the limiting rod 10. By abutting the bottom end of the limiting rod 10 against the top side of the limiting plate 9, the limiting plate 9 is prevented from rotating with the retaining ring 7, thereby fixing the retaining ring 7. The insert rod 3 is inserted into the limiting rod 10 to prevent the limiting rod 10 from disengaging from the limiting plate 9.
[0026] Reference Figure 4 A stop bar 13 is fixedly connected to the front side of the interior of the metal shell 4. An impact bar 14 is fixedly connected to the bottom side of the stop bar 13. The impact bar 14 is slidably connected to the interior of the metal shell 4 via a slide bar 12. The stop bar 13 is somewhat brittle and will break off from the interior of the metal shell 4 when subjected to a large tensile force, causing the impact bar 14 to slide downward inside the metal shell 4. The middle end of the suspension rope 2 is wound from top to bottom around the outer walls of the guide rod 11 and the stop bar 13. A lever 18 is rotatably connected inside the metal shell 4. The front end of the lever 18 is located below the impact bar 14. The impact bar 14 strikes the front end of the lever 18, causing the rear end of the lever 18 to tilt upward. A telescopic rod 17 is fixedly connected to the bottom side of the interior of the metal shell 4. A washer 15 is fixedly connected to the top end of the telescopic rod 17. The top side of the washer 15 abuts against the front end of the lever 18. On the bottom side, a second spring 16 is sleeved on the outer wall of the telescopic rod 17. The top end of the second spring 16 is fixedly connected to the bottom side of the pad 15, and the bottom end of the second spring 16 is fixedly connected to the inner bottom side of the metal shell 4. The second spring 16 causes the bottom side of the pad 15 to abut against the front bottom side of the lever 18. An eccentric wheel 19 is rotatably connected inside the metal shell 4. A push rod 20 is fixedly connected to the inner bottom side of the metal shell 4. The top end of the push rod 20 abuts against the rear bottom side of the lever 18, and the rear top side of the lever 18 abuts against the bottom side of the eccentric wheel 19. The push rod 20 holds the rear end of the lever 18 in place to prevent it from tilting too much and causing the impact rod 14 to fail to hit the front end of the lever 18. The eccentric wheel 19, which is hit by the rear end of the lever 18, clamps the suspension rope 2 between the guide rod 11 and the eccentric wheel 19, thereby preventing the suspension rope 2 from continuing to fall.
[0027] Working principle: First, install the base 5 onto the bottom of the winding machine 1. Then, pass the suspension rope 2 through the stop bar 13 and guide rod 11 in the metal shell 4 and let it pass out from the top side of the metal shell 4. Then, fix the suspension rope 2 to the winding machine 1. Then, press the limiting plate 9 to rotate the two retaining rings 7, thereby opening the space between the two retaining rings 7. Then, insert the buckle post 6 on the top side of the metal shell 4 between the two retaining rings 7. Then, release the limiting plate 9. Under the action of the first spring 8, the limiting plate 9 will rotate with the retaining rings 7, so that the retaining rings 7 are tightly attached to the buckle post 6, thereby fixing the buckle post 6 between the two retaining rings 7. Then, insert the limiting rod 10 into the winding machine 1, and let its bottom end abut against the bottom side of the limiting plate 9 to prevent the limiting plate 9 from loosening, causing the retaining rings 7 to rotate, which would cause the buckle post 6 to fall off and the metal shell 4 to detach from the winding machine 1. Finally, Insert the insert rod 3 into the limiting rod 10, with one insert rod 3 inserted between the two limiting rods 10, passing through both limiting rods 10 and close to the top side of the winding machine 1. The remaining two insert rods 3 are inserted into the two limiting rods 10 respectively and located on the bottom side of the winding machine 1, thereby preventing the limiting rods 10 from detaching from the winding machine 1. When the operator is using the machine, if the hoisting rope 2 suddenly falls downward, the stop rod 13 will break due to the force generated by the sudden downward fall of the hoisting rope 2. This will cause the impact rod 14 to slide downward and impact the front end of the lever 18. When the front end of the lever 18 is impacted, the rear end of the lever 18 will lift up, thereby pushing the eccentric wheel 19 to rotate. This will cause the top side of the eccentric wheel 19 to rotate to the guide rod 11, thereby clamping the hoisting rope 2 between the guide rod 11 and the eccentric wheel 19, preventing the hoisting rope 2 from continuing to fall.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A construction fall arrestor that is easy to install, characterized in that: The device includes a winding machine (1), the outer wall of which is wound with a hoisting rope (2), a metal shell (4) is provided on the bottom side of the winding machine (1), a base (5) is fixedly connected to the bottom side of the winding machine (1), the base (5) and the metal shell (4) are connected by a snap-fit assembly for removing the metal shell (4) from the winding machine (1), a guide rod (11) for guiding the hoisting rope (2) is fixedly connected to the top inside the metal shell (4), and a locking assembly is provided on the front inside the metal shell (4) for fixing the rapidly falling hoisting rope (2).
2. The easy-to-install fall arrestor for construction work according to claim 1, characterized in that: The buckle assembly includes two buckle rings (7) rotatably connected to the bottom side of the base (5), and a buckle post (6) is fixedly connected to the top side of the metal shell (4), and the buckle post (6) is engaged between the two buckle rings (7).
3. The easy-to-install fall arrestor for construction work according to claim 2, characterized in that: The middle part of the retaining ring (7) is fixedly connected to the limiting plate (9), and a first spring (8) is fixedly connected between the base (5) and the limiting plate (9). The top end of the first spring (8) is fixedly connected to the bottom side of the base (5), and the bottom end of the first spring (8) is fixedly connected to the top side of the limiting plate (9).
4. A construction fall arrestor that is easy to install according to claim 3, characterized in that: Two limiting rods (10) are inserted into the bottom side of the winding machine (1). The bottom end of the left limiting rod (10) abuts against the top side of the left limiting plate (9), and the bottom end of the right limiting rod (10) abuts against the top side of the right limiting plate (9). A plug rod (3) is inserted inside the limiting rod (10).
5. A construction fall arrestor that is easy to install according to claim 1, characterized in that: The locking assembly includes a stop bar (13) fixedly connected to the front side inside the metal shell (4), an impact bar (14) fixedly connected to the bottom side of the stop bar (13), the impact bar (14) being slidably connected to the inside of the metal shell (4) via a slide bar (12), and the middle end of the suspension rope (2) being wound from top to bottom around the outer wall of the guide rod (11) and the stop bar (13).
6. A construction fall arrestor that is easy to install according to claim 5, characterized in that: The metal shell (4) is rotatably connected to a lever (18), the front end of the lever (18) is located below the impact rod (14), the bottom inside the metal shell (4) is fixedly connected to a telescopic rod (17), the top end of the telescopic rod (17) is fixedly connected to a washer (15), and the top side of the washer (15) abuts against the bottom front end of the lever (18).
7. A construction fall arrestor that is easy to install according to claim 6, characterized in that: The outer wall of the telescopic rod (17) is fitted with a second spring (16), the top end of the second spring (16) is fixedly connected to the bottom side of the gasket (15), and the bottom end of the second spring (16) is fixedly connected to the inner bottom side of the metal shell (4).
8. A construction fall arrestor that is easy to install according to claim 7, characterized in that: An eccentric wheel (19) is rotatably connected inside the metal shell (4), and a push rod (20) is fixedly connected to the bottom side inside the metal shell (4). The top end of the push rod (20) abuts against the bottom rear end of the lever (18), and the top rear end of the lever (18) abuts against the bottom side of the eccentric wheel (19).