Fall arrestor

Abstract

This utility model discloses a fall arrestor, comprising a main body and a connecting rope. Two main bodies are provided, each with a threaded sleeve on one side. A threaded rod is threadedly connected to the inside of each threaded sleeve. A bearing is fixedly connected to one end of the threaded rod, and a movable plate is fixedly connected to one side of the bearing. Several first toothed blocks are fixedly connected to one side of the movable plate. A rotating handle is fixedly connected to the other end of the threaded rod, and a second fixing bolt is threadedly connected to one side of the rotating handle. A fixing sleeve is fixedly connected to the outer surface of the connecting rope, and several second toothed blocks are fixedly connected to both sides of the fixing sleeve. By configuring the fixing sleeve, second toothed blocks, threaded sleeve, threaded rod, rotating handle, movable plate, first toothed blocks, and first fixing bolt, after the main body locks the connecting rope, rotating the rotating handle allows the first toothed blocks to insert into the second toothed blocks, locking the connecting rope again, thus achieving double protection.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, specifically to a fall arrestor. Background Technology

[0002] A fall arrestor, also known as a differential brake, is a protective device that can quickly brake and lock a falling object within a limited distance. It is suitable for hoisting goods, protecting the lives of ground personnel and preventing damage to the suspended workpiece. If an operator accidentally falls from a height, the fall arrestor will immediately activate its locking device to lock the safety rope and prevent the operator from falling further due to the excessive descent speed. A typical fall arrestor usually has a rotating ratchet and pawl. When the operator accidentally falls and the safety rope is pulled down rapidly, the force of the ratchet pushing the pawl increases. The pawl overcomes the force of the elastic component and engages in the groove of the ratchet, stopping the ratchet from rotating and preventing the person from falling.

[0003] Existing fall arresters only provide one layer of protection through structures such as ratchet discs and pawls. Since the fall arrester housing is mostly a single piece or fixed by specially shaped bolts, users usually only perform visual inspections and do not disassemble the fall arrester for inspection and maintenance. This single layer of protection greatly increases the potential risks of using fall arresters. Utility Model Content

[0004] The purpose of this utility model is to provide a fall arrestor that, through a fixed sleeve, a second toothed block, a threaded sleeve, a threaded rod, a rotating handle, a moving plate, a first toothed block, and a first fixing bolt, allows the rotating handle to be rotated after the main body locks the connecting rope, so that the first toothed block is inserted into the second toothed block, thereby locking the connecting rope again and achieving double protection.

[0005] To achieve the above objectives, a fall arrestor is provided, comprising a main body and a connecting rope. The main body is provided in two sets, and each of the two main bodies has a threaded sleeve on one side. A threaded rod is threadedly connected inside the threaded sleeve. A bearing is fixedly connected to one end of the threaded rod. A movable plate is fixedly connected to one side of the bearing. Several first tooth blocks are fixedly connected to one side of the movable plate. A rotating handle is fixedly connected to the other end of the threaded rod. A second fixing bolt is threadedly connected to one side of the rotating handle.

[0006] A fixing sleeve is fixedly connected to the outer surface of the connecting rope, and several second tooth blocks are fixedly connected to both sides of the fixing sleeve.

[0007] According to the aforementioned fall arrestor, connecting plates are fixedly connected to both sides of the two main bodies, and several first fixing bolts are threadedly connected to one side of the connecting plate. The two main bodies are fixedly connected by the connecting plates and the first fixing bolts.

[0008] According to the aforementioned fall arrestor, a placement cavity is provided on one side of the main body, and the movable plate is slidably disposed inside the placement cavity.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This fall arrestor, by setting up a fixed sleeve, a second toothed block, a threaded sleeve, a threaded rod, a rotating handle, a moving plate, a first toothed block, and a first fixing bolt, allows the rotating handle to be rotated after the main body locks the connecting rope, so that the first toothed block can be inserted into the second toothed block to lock the connecting rope again, thus achieving double protection.

[0011] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0013] Figure 1 This is a perspective view of the fall arrestor of this utility model;

[0014] Figure 2 This is a cross-sectional view of the fall arrestor of this utility model;

[0015] Figure 3 For the present utility model Figure 2 Enlarged diagram of point A in the middle.

[0016] In the diagram: 1. Main body; 2. Connecting rope; 3. Connecting plate; 4. First fixing bolt; 5. Rotating handle; 6. Threaded rod; 7. Moving plate; 8. Threaded sleeve; 9. Second fixing bolt; 10. First toothed block; 11. Fixing sleeve; 12. Second toothed block; 13. Placement cavity. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3This utility model provides a technical solution: a fall arrestor, including a main body 1 and a connecting rope 2. The main body 1 is provided in two sets. Each of the two main bodies 1 is provided with a threaded sleeve 8 on one side. The threaded sleeve 8 is internally threaded with a threaded rod 6. One end of the threaded rod 6 is fixedly connected to a bearing. One side of the bearing is fixedly connected to a movable plate 7. One side of the movable plate 7 is fixedly connected to a plurality of first tooth blocks 10. The other end of the threaded rod 6 is fixedly connected to a rotating handle 5. One side of the rotating handle 5 is threadedly connected to a second fixing bolt 9.

[0019] A fixing sleeve 11 is fixedly connected to the outer surface of the connecting rope 2. Several second tooth blocks 12 are fixedly connected to both sides of the fixing sleeve 11. By setting the fixing sleeve 11, the second tooth blocks 12, the threaded sleeve 8, the threaded rod 6, the rotating handle 5, the moving plate 7, the first tooth block 10, and the first fixing bolt 4, after the main body 1 locks the connecting rope 2, the rotating handle 5 can be rotated to insert the first tooth block 10 into the second tooth block 12, thereby locking the connecting rope 2 again and achieving double protection.

[0020] Both sides of the two main bodies 1 are fixedly connected to a connecting plate 3. Several first fixing bolts 4 are threadedly connected to one side of the connecting plate 3 to prevent the rotating handle 5 from rotating. The two main bodies 1 are fixedly connected by the connecting plate 3 and the first fixing bolts 4. A placement cavity 13 is opened on one side of the main body 1, and the moving plate 7 is slidably set inside the placement cavity 13.

[0021] Working principle: When in use, the connecting rope 2 moves down and is locked by the ratchet and pawl of the main body 1. At the same time, the fixing sleeve 11 moves down with the connecting rope 2. The rotating handle 5 is rotated, and the rotating handle 5 drives the threaded rod 6 to rotate and move inside the threaded sleeve 8. This drives the moving plate 7 to move. The moving plate 7 drives the first tooth block 10 to insert into the second tooth block 12 for double protection.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A fall arrester comprising a main body (1), a connecting rope (2), characterized in that, The main body (1) is provided in two sets. Each of the two main bodies (1) is provided with a threaded sleeve (8) on one side. The threaded sleeve (8) is internally threaded with a threaded rod (6). One end of the threaded rod (6) is fixedly connected with a bearing. One side of the bearing is fixedly connected with a moving plate (7). One side of the moving plate (7) is fixedly connected with several first tooth blocks (10). The other end of the threaded rod (6) is fixedly connected with a rotating handle (5). One side of the rotating handle (5) is threadedly connected with a second fixing bolt (9). A fixing sleeve (11) is fixedly connected to the outer surface of the connecting rope (2), and several second tooth blocks (12) are fixedly connected to both sides of the fixing sleeve (11).

2. The fall arrestor as described in claim 1, characterized in that: Both sides of the two main bodies (1) are fixedly connected to a connecting plate (3), and one side of the connecting plate (3) is threaded with several first fixing bolts (4). The two main bodies (1) are fixedly connected by the connecting plate (3) and the first fixing bolts (4).

3. The fall arrestor as described in claim 1, characterized in that: The main body (1) has a placement cavity (13) on one side, and the movable plate (7) is slidably disposed inside the placement cavity (13).

Images