Falling protector convenient to use in safe construction

Abstract

The falling protector comprises a shell, a notch is formed in the upper side of the middle of the shell, a connecting piece is rotationally connected to the notch, a connecting hole is formed in the end of the connecting piece, a locking piece is arranged at the connecting hole, a vertically-through channel is formed in the shell, a motor is installed on the side of the shell, and a locking piece is arranged on the locking piece. According to the invention, the pressure sensor is used for monitoring the pressure of the safety rope pressed on the pressure sensor, recording the impact bearing frequency and the impact force, the impact bearing frequency and the impact force are displayed on the display screen, and the display screen can display the electric quantity; the impact force is transmitted to a controller and a monitoring center through a remote communication module, remote monitoring is carried out, when the impact force is larger than a preset value, it is judged that falling occurs, an alarm is given in time through the controller, and through the arrangement of the upper pressing piece and the lower pressing piece, the safety rope can be controllably released step by step, the height of a falling person is changed, and rescue is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of fall arresters, in particular to a fall arrester that is convenient for safe construction. Background Art

[0002] Most of the existing fall arresters are differential type. When personnel are working at height, the anti-detachment hook at the upper end of the fall arrester is hung on the structural frame above the work point, and the lower end is hung on the worker's safety belt. When the falling speed of the wire rope exceeds 1m / s, the internal pulley of the fall arrester is locked to prevent the worker from falling. However, this type of fall arrester cannot alarm in case of emergency. If a worker falls unconscious due to gas poisoning or falls unconscious due to a collision, he or she will not be able to call for help, which will aggravate the danger. The surrounding staff will not be able to know the danger and carry out rescue in the first time.

[0003] A Chinese patent discloses a fall arrester that can sound an alarm in an emergency (authorization announcement number CN207477819U). This patented technology can sound an alarm in time when a worker falls while using a fall arrester to perform high-altitude operations. However, after the alarm, the worker is suspended in the air and cannot adjust the height, which makes self-rescue or rescue more difficult, and the height cannot be adjusted remotely. Therefore, the present invention provides a fall arrester that is easy to use for safe construction to solve the problems raised in the above background technology. Summary of the invention

[0004] The object of the present invention is to provide a fall arrester which is convenient for use in safe construction, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A fall arrester convenient for safe construction use comprises a shell, a notch is provided on the upper side of the middle part of the shell, a connecting piece is rotatably connected at the notch, a connecting hole is provided at the end of the connecting piece, a locking piece is provided at the connecting hole, a channel is provided in the shell which passes through from top to bottom, the middle part of the channel is linear, and the upper and lower ends of the linear channel are connected to lateral arc tubes to guide the force of the safety rope to the shell;

[0007] A motor is installed on the side of the shell, and the motor is connected to the eccentric wheel through a worm gear mechanism. A lower pressing plate is provided on the lower side of the eccentric wheel, and an upper pressing plate is provided above the lower pressing plate. The side end of the lower pressing plate is rotatably connected to the shell, and a torsion spring is provided at the rotating position. The eccentric wheel is connected to the upper pressing plate through an elastic connecting rod, and a toggle rod is provided below the upper pressing plate. The upper end of the toggle rod is rotatably connected to the shell, and the lower end of the toggle rod is placed on the eccentric wheel;

[0008] The side end of the upper pressing plate is rotatably connected to a slider, which is slidably connected in a vertical sliding groove, and a spring 1 is connected to the lower side of the slider. A sliding plate is provided on the side of the channel opposite to the upper pressing plate, and the sliding plate is slidably connected in the groove up and down, and a spring 2 is connected to the lower side of the sliding plate;

[0009] A pressure sensor is provided inside the arc tube at the lower end of the channel, the pressure sensor is electrically connected to a storage module, the storage module is electrically connected to a power source, a motor and a remote communication module, the remote communication module is remotely connected to a controller and a monitoring center, and a display screen is embedded on the outer side of the shell.

[0010] Preferably, the locking member is composed of a screw and a nut, the nut is rotatably connected to the through hole of the connecting member, and the end of the screw is hexagonal, so that the screw is connected to the connecting hole by the rotation of the nut, thereby clamping the safety rope.

[0011] Preferably, the lower pressing plate and the upper pressing plate are both composed of an upper arc-shaped pressing plate and a lower extrusion plate.

[0012] Preferably, the elastic connecting rod is formed by two rods being sleeved together, and a spring is connected at the sleeved position.

[0013] Preferably, an anti-slip sheet is provided on the outer side of the sliding sheet, and the anti-slip sheet is pressed on the outer side of the groove to cover the position of the groove.

[0014] Preferably, an elastic pad and a protective shell are clamped on the inner side of the lower end of the channel.

[0015] Preferably, the shell is flat and has a plurality of elastic strips on the outside to cushion the impact.

[0016] Preferably, the toggle lever is provided with an arc block near the upper end, and the arc block can be pressed on the lower side of the upper pressing plate to push the upper pressing plate to rotate and then unlock.

[0017] Preferably, the controller is mounted on a safety helmet for easy operation.

[0018] Preferably, the display screen displays the power level.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention monitors the pressure of the safety rope through a pressure sensor, records the number of impacts and the impact force, and displays them on a display screen. The display screen can display the power and transmit it to the controller and the monitoring center through a remote communication module for remote monitoring. When the impact force is greater than a predetermined value, it is determined that a fall has occurred and an alarm is promptly issued through the controller.

[0021] 2. The present invention can controllably release the safety rope gradually and change the height of the fallen person through the arrangement of the upper pressing plate and the lower pressing plate, so as to facilitate rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a structural schematic diagram of a fall arrester which is convenient for use in safe construction.

[0023] Figure 2 The present invention is a schematic diagram of the front cross-sectional structure of a fall arrester which is convenient for use in safe construction.

[0024] Figure 3 for Figure 2 Schematic diagram of the locally enlarged structure of A in the middle.

[0025] Figure 4 The figure is a system diagram of a fall arrester which is convenient for use in safe construction.

[0026] In the figure: 1. housing; 2. connecting piece; 3. locking piece; 4. channel; 5. motor; 6. worm gear mechanism; 7. eccentric wheel; 8. lower pressing piece; 9. upper pressing piece; 10. elastic connecting rod;

[0027] 11. Push rod; 12. Slide groove; 13. Spring 1; 14. Spring 2; 15. Sliding sheet; 16. Pressure sensor; 17. Elastic pad; 18. Display screen; 19. Elastic strip. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 4 In an embodiment of the present invention, a fall arrester convenient for safe construction includes a shell 1, a notch is provided on the upper middle side of the shell 1, a connecting piece 2 is rotatably connected at the notch, a connecting hole is provided at the end of the connecting piece 2, a locking piece 3 is provided at the connecting hole, the locking piece 3 is composed of a screw and a nut, the nut is rotatably connected at the through hole of the connecting piece 2, the end of the screw is hexagonal, so that the screw is connected to the connecting hole by the rotation of the nut, and the safety rope is clamped, and a channel 4 is provided in the shell 1 that runs through the upper and lower parts, the middle part of the channel 4 is linear, and the upper and lower ends of the linear are connected to lateral arc tubes to guide the force of the safety rope to the shell 1;

[0030] A motor 5 is installed on the side of the shell 1, and the motor 5 is connected to the eccentric wheel 7 through a worm gear mechanism 6. A lower pressing plate 8 is provided on the lower side of the eccentric wheel 7, and an upper pressing plate 9 is provided above the lower pressing plate 8. The lower pressing plate 8 and the upper pressing plate 9 are both composed of an upper arc-shaped pressing plate and a lower extrusion plate. The side end of the lower pressing plate 8 is rotatably connected to the shell 1, and a torsion spring is provided at the rotating position. The eccentric wheel 7 is connected to the upper pressing plate 9 through an elastic connecting rod 10, and the elastic connecting rod 10 is formed by two rods being sleeved, and a spring is connected to the sleeve position. A toggle rod 11 is provided below the upper pressing plate 9, and the upper end of the toggle rod 11 is rotatably connected to the shell 1, and the lower end of the toggle rod 11 is placed on the eccentric wheel 7;

[0031] The side end of the upper pressing piece 9 is rotatably connected to the slider, which is slidably connected in the vertical sliding groove 12, and a spring 13 is connected to the lower side of the slider. A sliding piece 15 is provided on the side of the channel 4 relative to the upper pressing piece 9, and the sliding piece 15 is slidably connected in the groove up and down, and a spring 2 14 is connected to the lower side of the sliding piece 15. An anti-slip sheet is provided on the outer side of the sliding piece 15, and the anti-slip sheet is pressed on the outer side of the groove to block the position of the groove. An elastic pad 17 is clamped on the inner side of the lower end of the channel 4, and a protective shell 1 is provided. The shell 1 is flat and has a plurality of elastic strips 19 on the outer side to buffer the collision. An arc block is provided near the upper end of the toggle rod 11, and the arc block can be pressed on the lower side of the upper pressing piece 9 to push the upper pressing piece 9 to rotate and unlock;

[0032] A pressure sensor 16 is provided inside the arc tube at the lower end of the channel 4, and the pressure sensor 16 is electrically connected to a storage module, and the storage module is electrically connected to a power source 1, a motor 5 and a remote communication module, and the remote communication module is remotely connected to a controller and a monitoring center. A display screen 18 is embedded on the outer side of the shell 1, and the controller is installed on a safety helmet for easy operation.

[0033] The working principle of the present invention is:

[0034] During installation, connect the auxiliary safety rope to the connector 2, rotate the nut to drive the screw to extend and press on the safety rope, and the other main safety rope passes through the channel 4 from the lower end.

[0035] When in use, the torsion spring at the lower pressing plate 8 makes the lower pressing plate 8 press on the safety rope, so that the safety rope can move slowly. When a fall occurs or a fast movement occurs, the safety rope will be pulled quickly, thereby driving the lower pressing plate 8 to press the safety rope tightly, and the safety rope is pressed tightly at the channel 4, thereby blocking the safety rope and preventing further falls. At this time, the connecting piece 2 is vertical, and the pressure sensor 16 monitors the pressure of the safety rope on it, and records the number of impacts and impact force, which are displayed on the display screen 18. The power can be displayed on the display screen 18 and transmitted to the controller and monitoring center through the remote communication module for remote monitoring. When the impact force is greater than the predetermined value, it is judged that a fall has occurred, and an alarm is promptly issued through the controller.

[0036] When a fall occurs and the main safety rope is detached and the height of the fallen person needs to be lowered, the controller at the safety helmet can be used to control the motor 5 to rotate, and then the eccentric wheel 7 is driven to rotate through the worm gear mechanism 6. When the eccentric wheel 7 is close to the lower pressing plate 8, the lower pressing plate 8 is squeezed to squeeze the safety rope. At the same time, the upper pressing plate 9 is pulled downward by the elastic connecting rod 10 to press the upper side of the safety rope. The eccentric wheel 7 continues to rotate, and the elastic connecting rod 10 reaches the maximum length, thereby driving the safety rope clamped on the upper side to move downward, squeezing the sliding plate 15 and the slider downward, squeezing the spring 1 13 and the spring 2 14 downward, and loosening the safety rope downward.

[0037] When the eccentric wheel 7 is away from the lower pressing piece 8, the lower pressing piece 8 is separated from the safety rope. Under the action of gravity, the safety rope is tightened again, and the person moves down one section. At this time, the lower pressing piece 8 provides a clamping force, and the eccentric wheel 7 continues to rotate. When the lower pressing piece 8 is re-compressed, the upper side of the eccentric wheel 7 passes over the toggle rod 11, and the toggle rod 11 rotates upward, pushing the upper pressing piece 9 to lift up, unlocking the safety rope. Under the action of spring 13 and spring 2 14, the upper pressing piece 9 moves up to the initial position and prepares for the next section of movement. Changing the height of the falling person is convenient for rescue.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fall arrester for safe construction, comprising a housing (1), characterized in that: A notch is provided on the upper middle side of the housing (1), a connecting piece (2) is rotatably connected to the notch, a connecting hole is provided at the end of the connecting piece (2), a locking piece (3) is provided at the connecting hole, a channel (4) is provided in the housing (1) and passes through the channel (4) from top to bottom, the middle of the channel (4) is linear, and the upper and lower ends of the linear channel are connected to lateral arc tubes; A motor (5) is installed on the side of the housing (1), and the motor (5) is connected to the eccentric wheel (7) through a worm gear mechanism (6). A lower pressing plate (8) is provided on the lower side of the eccentric wheel (7), and an upper pressing plate (9) is provided above the lower pressing plate (8). The side end of the lower pressing plate (8) is rotatably connected to the housing (1), and a torsion spring is provided at the rotation point. The eccentric wheel (7) is connected to the upper pressing plate (9) through an elastic connecting rod (10), and a toggle rod (11) is provided below the upper pressing plate (9). The upper end of the toggle rod (11) is rotatably connected to the housing (1), and the lower end of the toggle rod (11) rests on the eccentric wheel (7); The side end of the upper pressing plate (9) is rotatably connected to a slider, which is slidably connected in a vertical sliding groove (12), and a spring 1 (13) is connected to the lower side of the slider. A sliding plate (15) is provided on the side of the channel (4) opposite to the upper pressing plate (9), and the sliding plate (15) is slidably connected in the groove up and down, and a spring 2 (14) is connected to the lower side of the sliding plate (15); A pressure sensor (16) is provided inside the arc tube at the lower end of the channel (4), the pressure sensor (16) is electrically connected to a storage module, the storage module is electrically connected to a power source 1, a motor (5) and a remote communication module, the remote communication module is remotely connected to a controller and a monitoring center, and a display screen (18) is embedded on the outer side of the housing (1).

2. A fall arrester for safe construction according to claim 1, characterized in that: The locking piece (3) is composed of a screw rod and a nut. The nut is rotatably connected to the through hole of the connecting piece (2). The end of the screw rod is hexagonal.

3. A fall arrester for safe construction according to claim 1, characterized in that: The lower pressing plate (8) and the upper pressing plate (9) are both composed of an upper arc-shaped pressing plate and a lower extrusion plate.

4. A fall arrester for safe construction according to claim 1, characterized in that: The elastic connecting rod (10) is formed by sleeve-connecting two rods, and a spring is connected at the sleeve-connecting position.

5. The fall arrester for safe construction according to claim 1, characterized in that: An anti-slip sheet is provided on the outer side of the sliding sheet (15), and the anti-slip sheet is pressed on the outer side of the groove.

6. A fall arrester for safe construction according to claim 1, characterized in that: An elastic pad (17) is clamped on the inner side of the lower end of the channel (4).

7. A fall arrester for safe construction according to claim 1, characterized in that: The outer shell (1) is flat and has a plurality of elastic strips (19) disposed on the outer side.

8. The fall arrester for safe construction according to claim 1, characterized in that: The toggle rod (11) is provided with an arc block near the upper end, and the arc block can be pressed on the lower side of the upper pressing plate (9).

9. The fall arrester for safe construction according to claim 1, characterized in that: The controller is installed on the safety helmet.

10. The fall arrester for safe construction according to claim 1, characterized in that: The display screen (18) displays the electric quantity.

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