CN219050175U - Falling protector - Google Patents

Abstract

The utility model relates to the field of construction equipment, in particular to an anti-falling device, which comprises a rotating frame A and a fixed pulley; the fixed pulley is rotatably arranged on the rotating frame A through a mounting shaft, both ends of the mounting shaft extend to the outer side of the rotating frame A, a telescopic rod is fixedly connected to the mounting shaft along the radial direction of the mounting shaft, and a limit sliding block is arranged on one side surface of the rotating frame A adjacent to the telescopic rod; a rotating frame B is arranged above the fixed pulley, the rotating frame B is slidably arranged on the rotating frame A, a pressing wheel is rotatably arranged on the rotating frame B, the upper end of the rotating frame A is fixedly connected with a guide rod, the top end of the guide rod movably penetrates through the top end of the rotating frame A and is connected with a pressing plate, a spring is sleeved on the guide rod, and an alarm lamp switch are arranged on the rotating frame A; the end part of the installation shaft is fixedly connected with a crank. The anti-falling alarm lamp has the anti-falling function, is simple in structure, can automatically trigger the alarm lamp when the surface of the lifting rope is worn to a certain extent, has the function of warning, and is higher in safety.

Description

Falling protector

Technical Field

The utility model relates to the field of construction equipment, in particular to a fall arrester.

Background

Because the floor of the building is higher at present, no matter building staff is built or the outer wall is cleaned and painted after the building is completed, the danger of the building staff during working is increased along with the height of the working position, therefore, when working at a high place, the personnel are often provided with a safety hook comprising a safety belt, the safety hook is fixedly connected to a support, and the safety belt is tied on the body of the personnel, so that the personnel can be prevented from continuously falling, and the safety of the personnel is ensured. The traditional anti-falling device comprises a rotating piece, a safety belt and a braking device, wherein one end of the safety belt is connected with the rotating piece and is wound on the rotating piece; the braking device comprises a braking disc, a braking block and a stopping piece, wherein the braking disc is connected to the rotating piece and rotates coaxially with the rotating piece, the braking block is pivoted on the braking disc and is thrown out and clamped with the stopping piece under the action of centrifugal force generated when the braking disc instantaneously rotates so as to limit the rotation of the rotating piece. When a worker is in hanging operation, the brake device can play an emergency locking role to stop the rotation of the rotating member when the worker falls carelessly, so that the worker is prevented from continuously falling.

The surface of the lifting rope can be worn after being used for a long time, so that the lifting rope is not easy to find by constructors, and if the lifting rope is worn to a certain extent, the lifting rope can be broken, so that the construction safety is affected.

Disclosure of Invention

The utility model aims at solving the technical problems in the background technology and provides a fall arrester.

The technical scheme of the utility model is as follows: the falling protector comprises a rotating frame A and a fixed pulley; the fixed pulley is rotatably arranged on the rotating frame A through a mounting shaft, both ends of the mounting shaft extend to the outer side of the rotating frame A, a telescopic rod is fixedly connected to the mounting shaft along the radial direction of the mounting shaft, the telescopic rod comprises a sleeve and a movable rod, the sleeve is fixed on the mounting shaft, the end part of the movable rod is slidably arranged on the inner side of the sleeve, and a limit sliding block is arranged on one side surface, adjacent to the telescopic rod, of the rotating frame A; a rotating frame B is arranged above the fixed pulley, the rotating frame B is slidably arranged on the rotating frame A, a pressing wheel is rotatably arranged on the rotating frame B, the upper end of the rotating frame A is fixedly connected with a guide rod, the top end of the guide rod movably penetrates through the top end of the rotating frame A and is connected with a pressing plate, a spring is sleeved on the guide rod, an alarm lamp and an alarm lamp switch are arranged on the rotating frame A, and the alarm lamp switch is positioned right below the pressing plate; the end part of the installation shaft is fixedly connected with a crank.

Preferably, the limit sliding block is slidably mounted on the rotating frame A, the rotating frame A is connected with a fixing frame, the fixing frame is connected with a butterfly bolt in a threaded manner, and the butterfly bolt is in threaded connection with the limit sliding block.

Preferably, the rotating frame A is provided with a scale bar.

Preferably, the rotating frame A is fixedly connected with an anti-falling rope limiting frame which is in a U-shaped structure.

Preferably, the length of the movable rod is smaller than that of the sleeve, and the minimum distance between the limiting slide block and the mounting shaft is larger than that of the sleeve.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects: when the lifting rope on the fixed pulley uniformly moves at a low speed, the telescopic rod reaches the maximum length when rotating to the lowest position, when the telescopic rod rotates clockwise by more than 90 degrees, the movable rod starts to retract into the sleeve gradually, when the telescopic rod rotates to the topmost position, the movable rod is completely arranged on the inner side of the sleeve, the telescopic rod continuously rotates, when rotating to 90 degrees from the topmost position, the telescopic rod is not contacted with the limit sliding block, if the fixed pulley rotates rapidly, the movable rod is thrown out under the action of centrifugal force, the telescopic rod keeps the maximum length, and when the telescopic rod rotates to the limit sliding block, the telescopic rod is blocked, so that the fixed pulley can be limited, and the lifting rope is prevented from continuously falling down; when the lifting rope is worn, when the worn part of the lifting rope is in contact with the pinch roller, the guide rod is driven to move downwards under the action of spring force, and the guide rod drives the pressing plate to move downwards, so that the pressing plate is in contact with the alarm lamp switch, and the alarm lamp is triggered at the moment, so that the alarm lamp can play a role in warning; in summary, the anti-falling alarm lamp has the anti-falling function, is simple in structure, can automatically trigger the alarm lamp when the surface of the lifting rope is worn to a certain extent, has the function of warning, and is higher in safety.

Drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is a side view of the present utility model.

Reference numerals: 1. a rotating frame A; 2. a fixed pulley; 201. a mounting shaft; 301. a sleeve; 302. a movable rod; 4. a limit sliding block; 5. a crank; 6. a butterfly bolt; 7. a fixing frame; 8. a scale bar; 9. an anti-falling rope limiting frame; 10. an alarm lamp; 11. an alarm lamp switch; 12. a guide rod; 13. a spring; 14. a rotating frame B; 15. a pinch roller; 16. a pressing plate; 17. a lifting rope.

Detailed Description

As shown in fig. 1-2, the fall arrester provided by the utility model comprises a rotating frame A1 and a fixed pulley 2; the rotating frame A1 is fixedly connected with an anti-falling rope limiting frame 9, the anti-falling rope limiting frame 9 is of a U-shaped structure, and the arranged anti-falling rope limiting frame 9 can prevent the lifting rope 17 from falling off from the fixed pulley 2; the fixed pulley 2 is rotatably mounted on the rotating frame A1 through a mounting shaft 201, two ends of the mounting shaft 201 extend to the outer side of the rotating frame A1, a telescopic rod is fixedly connected to the mounting shaft 201 along the radial direction of the telescopic rod, the telescopic rod comprises a sleeve 301 and a movable rod 302, the sleeve 301 is fixed on the mounting shaft 201, the end part of the movable rod 302 is slidably mounted on the inner side of the sleeve 301, and a limit sliding block 4 is mounted on one side surface, adjacent to the telescopic rod, of the rotating frame A1; the length of the movable rod 302 is smaller than that of the sleeve 301, and the minimum distance between the limit sliding block 4 and the mounting shaft 201 is larger than that of the sleeve 301; the rotating frame A1 is provided with a scale bar 8; the limiting slide block 4 is slidably mounted on the rotating frame A1, a fixing frame 7 is connected to the rotating frame A1, a butterfly bolt 6 is connected to the fixing frame 7 in a threaded manner, and the butterfly bolt 6 is connected with the limiting slide block 4 in a threaded manner; a rotating frame B14 is arranged above the fixed pulley 2, the rotating frame B14 is slidably arranged on the rotating frame A1, a pinch roller 15 is rotatably arranged on the rotating frame B14, the upper end of the rotating frame A1 is fixedly connected with a guide rod 12, the top end of the guide rod 12 movably penetrates through the top end of the rotating frame A1 and is connected with a pressing plate 16, a spring 13 is sleeved on the guide rod 12, an alarm lamp 10 and an alarm lamp switch 11 are arranged on the rotating frame A1, and the alarm lamp switch 11 is positioned right below the pressing plate 16; the end of the installation shaft 201 is fixedly connected with a crank 5.

The working principle of the utility model is as follows: when the lifting rope 17 on the fixed pulley 2 moves uniformly and slowly, the telescopic rod reaches the maximum length when rotating to the lowest position, when the telescopic rod rotates clockwise by more than 90 degrees, the movable rod 302 starts to retract gradually into the sleeve 301, when the telescopic rod rotates to the topmost position, the movable rod 302 is completely arranged on the inner side of the sleeve 301, the telescopic rod continuously rotates, when rotating to 90 degrees from the topmost position, the telescopic rod is not contacted with the limit sliding block 4, if the fixed pulley 2 rotates rapidly and rapidly, the movable rod 302 is thrown out under the action of centrifugal force, the telescopic rod keeps the maximum length, and when the telescopic rod rotates to the limit sliding block 4, the telescopic rod is blocked, so that the fixed pulley 2 can be limited, and the lifting rope 17 is prevented from continuously falling down; when the lifting rope 17 is worn, when the worn part of the lifting rope 17 is in contact with the pinch roller 15, the guide rod 12 is driven to move downwards under the action of the elastic force of the spring 13, and the guide rod 12 drives the pressing plate 16 to move downwards, so that the pressing plate 16 is in contact with the alarm lamp switch 11, and the alarm lamp 10 is triggered at the moment, so that the alarm lamp can play a role in warning; in summary, the anti-falling alarm lamp has the anti-falling function, is simple in structure, can automatically trigger the alarm lamp 10 when the surface of the lifting rope 17 is worn to a certain extent, plays a role in warning, and is higher in safety.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (5)

1. The falling protector is characterized by comprising a rotating frame A (1) and a fixed pulley (2); the fixed pulley (2) is rotatably mounted on the rotating frame A (1) through a mounting shaft (201), two ends of the mounting shaft (201) extend to the outer side of the rotating frame A (1), a telescopic rod is fixedly connected to the mounting shaft (201) along the radial direction of the mounting shaft, the telescopic rod comprises a sleeve (301) and a movable rod (302), the sleeve (301) is fixed on the mounting shaft (201), the end part of the movable rod (302) is slidably mounted on the inner side of the sleeve (301), and a limit sliding block (4) is mounted on one side surface, adjacent to the telescopic rod, of the rotating frame A (1); a rotating frame B (14) is arranged above the fixed pulley (2), the rotating frame B (14) is slidably arranged on the rotating frame A (1), a pressing wheel (15) is rotatably arranged on the rotating frame B (14), the upper end of the rotating frame A (1) is fixedly connected with a guide rod (12), the top end of the guide rod (12) movably penetrates through the top end of the rotating frame A (1) and is connected with a pressing plate (16), a spring (13) is sleeved on the guide rod (12), an alarm lamp (10) and an alarm lamp switch (11) are arranged on the rotating frame A (1), and the alarm lamp switch (11) is positioned under the pressing plate (16); the end part of the installation shaft (201) is fixedly connected with a crank (5).

2. The fall arrester according to claim 1, characterized in that the limit slider (4) is slidably mounted on the rotating frame a (1), the rotating frame a (1) is connected with a fixing frame (7), the fixing frame (7) is connected with a butterfly bolt (6) in a threaded manner, and the butterfly bolt (6) is connected with the limit slider (4) in a threaded manner.

3. The fall arrester according to claim 2, characterized in that the turret a (1) is fitted with graduation strips (8).

4. The fall arrester of claim 1 wherein the rotating frame a (1) is fixedly connected with an anti-falling rope limiting frame (9), and the anti-falling rope limiting frame (9) has a U-shaped structure.

5. The fall arrester according to claim 1, characterized in that the length of the movable rod (302) is smaller than the length of the sleeve (301), and the minimum distance between the limit slider (4) and the mounting shaft (201) is larger than the length of the sleeve (301).

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