Anti-falling device for aloft work of communication tower

Abstract

The utility model provides a communication tower high-altitude operation anti-falling device which comprises two rectangular frames which are vertically placed and symmetrical in a left-right parallel mode, a plurality of cross beams are evenly distributed at the rear ends of the inner sides of the two rectangular frames in an up-and-down mode, a limiting block is inserted into each cross beam, and sliding blocks are inserted into the outer end faces of the cross beams in an up-and-down mode. The sliding block moves downwards to drive the limiting block to move towards the center of the cross beam; a pull rod capable of sliding up and down is arranged on the front side of each rectangular frame, the inner end of each pull rod is arranged between the two rectangular frames, and a hook is fixed to the inner end of each pull rod; the sliding plate is adopted to extrude the limiting block to enable the limiting block to move inwards and reset, the sliding plate cannot move downwards after resetting, matching is firm, and potential safety hazards do not exist; a worker moves downwards only by the sliding block, so that the operation is simple; meanwhile, the safety rope is fixed on the body of the worker through the round hole in the pull rod, and when the hook fails, the safety of the worker is further improved by holding the safety rope tightly by ground auxiliary personnel, and a higher guarantee is provided for construction of the worker.

Description

Technical Field

[0001] The utility model relates to an anti-falling technology, in particular to an anti-falling device for high-altitude operations on a communication tower. Background Art

[0002] The utility model of our company's authorization announcement number CN219023072U discloses a communication tower high-altitude operation anti-fall device, the principle of which is that a base plate 2 is fixed to the chest position of the wearable mounting belt 1, a U-shaped rod 3 with an opening facing downward is fixed to the front side of the base plate 2, an extension rod 4 is hinged at the lower end of the U-shaped rod 3, and a torsion spring 5 is installed at the upper end of the extension rod 4. Under the action of the torsion spring 5, the lower end of the extension rod 4 is tilted away from the base plate 2; a first transverse hole 6 is opened at the lower end of one of the side arms of the U-shaped rod 3, a transverse rod 7 is slidably inserted in the first transverse hole 6, a tension spring 8 is installed between the transverse rod 7 and the side arm, and a second transverse hole 9 is opened at the lower end of the other side arm of the U-shaped rod 3. When the tension of the tension spring 8 is released, the inner end of the transverse rod 7 will penetrate into the second transverse hole 9, so that the transverse rod 7 closes the opening of the U-shaped rod 3 to prevent the U-shaped rod 3 from tilting; but the following shortcomings still exist during use:

[0003] 1. Since the lower end of the extension rod is constantly extended between the horizontal braces of the ladder during the climbing process, this requires the worker's posture when falling. Since the worker's posture is uncertain when falling, once the worker falls backward, the extension rod will be separated from the horizontal braces of the ladder, causing the U-shaped rod to fail, that is, the coordination of the above structure has unsafe hidden dangers;

[0004] 2. When a worker goes down the ladder, he needs to use one hand to press the extension rod so that the extension rod passes over the horizontal support of the ladder. At this time, only the other hand is holding a horizontal beam of the ladder. Holding the beam with one hand is dangerous and inconvenient to operate. Summary of the invention

[0005] In view of the above situation, in order to solve the problems existing in the prior art, the utility model provides a communication tower high-altitude operation anti-falling device.

[0006] The technical solution includes two rectangular frames, which are placed vertically and parallel and symmetrical on the left and right. A plurality of beams are evenly distributed on the upper and lower inner rear ends of the two rectangular frames. A limit block is inserted at each end of each beam. The limit block is always subjected to outward force. Slide blocks are inserted at the upper and lower outer end surfaces of the beams. The downward movement of the slide blocks can drive the limit blocks to move toward the center of the beams. When the slide blocks move upward, the limit blocks can extend out of the left and right end surfaces of the beams. Each rectangular frame has a pull rod that can slide up and down on the front side. The pull rods are placed horizontally. The inner end of each pull rod is placed between the two rectangular frames. A hook is fixed to the inner end of each pull rod, and the two hooks are placed on the left and right. When the pull rod slides upward, it can step over the limit block. When the pull rod slides downward, the limit block can prevent the pull rod from moving.

[0007] The utility model adopts the method that when the worker climbs up, the skateboard squeezes the limit block to make the limit block move inward, and when the skateboard passes the limit block, the limit block can move outward and reset, so that the skateboard cannot move downward. The above structure cooperates firmly and has no safety hazards. When the worker moves downward, he only needs to press the slider on the beam with the same height as the skateboard. The operation is simple and there is no unnecessary movement. Moreover, when the worker climbs up and down, both hands are always on the beam. At the same time, because the safety rope is fixed to the worker through the round hole on the pull rod, when the hook fails, the ground assistant can further improve the safety of the worker by holding the safety rope tightly, providing higher protection for the worker's construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is the front view of the utility model.

[0009] Figure 2 It is a left view of the utility model.

[0010] Figure 3 This is a front view of a slide block and a limit block installed on the cross beam of the utility model.

[0011] Figure 4 for Figure 3 Front cross-sectional view.

[0012] Figure 5 This is a front view of the fixing of the pull rod and the slide plate in the utility model.

[0013] Figure 6 for Figure 5 Top view of the .

[0014] Figure 7 for Figure 6 A top sectional view of .

[0015] Figure 8 A three-dimensional diagram of the present invention.

[0016] Fig. 9 It is a three-dimensional diagram of the guide rod and the rectangular frame in the utility model. DETAILED DESCRIPTION

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0018] Combination Figures 1 to 9The utility model includes two rectangular frames 1, which are placed vertically and are parallel and symmetrical on the left and right sides. A plurality of beams 4 are evenly distributed on the inner rear ends of the two rectangular frames 1. A limit block 5 is inserted at each end of each beam 4. The limit block 5 is always subjected to an outward force. Slide blocks 6 are inserted on the upper and lower outer end surfaces of the beams 4. The downward movement of the slide blocks 6 can drive the limit blocks 5 to move toward the center of the beams 4. When the slide blocks 6 move upward, the limit blocks 5 can extend out of the left and right end surfaces of the beams 4.

[0019] Each rectangular frame 1 has a pull rod 3 that can slide up and down on the front side. The pull rod 3 is placed horizontally. The inner end of each pull rod 3 is placed between the two rectangular frames 1. A hook 8 is fixed to the inner end of each pull rod 3. The two hooks 8 are placed left and right.

[0020] When the pull rod 3 slides upward, it can step over the limit block 5, and when the pull rod 3 slides downward, the limit block 5 can prevent the pull rod 3 from moving.

[0021] When the limit block 5 moves outward, its outer end extends out of the outer end surface of the rectangular frame 1;

[0022] When the pull rod 3 moves upward, the limit block 5 is pressed inward, so that the pull rod 3 passes over the limit block 5. When the pull rod 3 slides downward, the limit block 5 can prevent the pull rod 3 from moving.

[0023] The crossbeam 4 is a cylindrical structure, with a rectangular groove at each of the left and right ends of the crossbeam 4. The limit block 5 is a rectangular block, which is placed in the rectangular groove. There is a compression spring in each rectangular groove, one end of the compression spring is fixed to the bottom surface of the rectangular groove, and the other end is fixed to the limit block 5. One end of the limit block 5 extending out of the end face of the crossbeam 4 is a slope inclined downward.

[0024] Each of the cross beams 4 has a rectangular groove at the middle upper end in the left-right direction of the outer edge surface, and each rectangular groove has a blind hole at the bottom. The slider 6 is a rectangular block, and each slider 6 has a round rod that can be inserted into the blind hole at the lower end, and the slider 6 slides up and down in the rectangular groove;

[0025] A rope is fixed to the bottom of each limit block 5 , and the other end of each rope passes through the bottom of the rectangular groove and is fixed to the round rod on the slider 6 .

[0026] Each rectangular frame 1 has two guide rods 2 symmetrical in the front-to-back direction on the outside, the plane formed by the two guide rods 2 on the same side is parallel to the rectangular frame 1, and the guide rod 2 located at the rear side of the two guide rods 2 on the same side is placed in the same plane as the crossbeam 4;

[0027] The two guide rods 2 on the same side are provided with a slide plate 11 which slides up and down on the guide rod 2, and the outer end of each pull rod 3 passes through the rectangular frame 1 and is fixed on the slide plate 11;

[0028] When the slide plate 11 moves upward, it presses the limit block 5 inward, and when the slide plate 11 slides downward, the limit block 5 prevents the slide plate 11 from moving downward;

[0029] A circular hole 10 is formed on the left and right sides of each slide plate 11 , and the circular hole 10 passes through the pull rod 3 .

[0030] The rectangular frame 1 is a rectangular frame surrounded by four rods, the pull rod 3 passes through the rectangular frame, and a flat plate is fixed to the upper and lower ends of the outer side of each rectangular frame 1, and the upper and lower ends of the guide rod 2 are fixed to the flat plate;

[0031] A plurality of fixing blocks 7 are evenly distributed on each guide rod 2, one end of the fixing block 7 is fixed to the guide rod 2, and the other end is fixed to the rectangular frame 1;

[0032] A notch is formed on the inner side surface of each slide plate 11 in the front-to-back direction. When the slide plate 11 slides up and down, the notch passes over the connecting block 9 .

[0033] Before using the utility model: first, the rectangular frame 1 in the utility model is fixedly installed on the communication tower. Before climbing the communication tower, the worker needs to wear a wearable safety belt and stand in front of the crossbeam 4. Then, the left and right hooks 8 behind the back are fixed to the wearable safety belt, and the safety rope 9 is passed through the round hole 10 on the slide 11. One end of the safety rope 9 is also fixed to the wearable safety belt, and the other end of the safety rope 9 is held by the assistant.

[0034] After that, the worker climbs upward through the crossbeam 4 with the cooperation of his hands and feet. During the climbing process, since the wearable safety belt is fixed to the hook of the pull rod 3, the hook 8 will drive the pull rod 3 to move upward with the worker. As the pull rod 3 rises with the worker, the pull rod 3 will also move the slide plate 11 upward on the guide rod 2. During the upward movement of the slide plate 11, the inclined surface of the limit block 5 will be squeezed, so that the limit block 5 on each crossbeam 4 moves inward, so that the slide plate 11 can move upward over the limit block 5 in turn. After the slide plate 11 passes over a limit block 5 upward, the limit block 5 is reset outward under the action of the compression spring to prevent the slide plate 11 from sliding downward, so that the worker will not fall from the rectangular frame 1 during the upward climbing process.

[0035] When a worker goes down the communication tower, he holds the beam 4 with one hand and holds a lower beam 4 at the same height as the skateboard 11 with the other hand. The grip of the hands causes the slider 6 on the beam 4 to slide downward, and the slider 6 pulls the rope to move the limit blocks 5 at the left and right ends of the beam 4 into the limit groove. Then the body moves downward, causing the skateboard 11 to step over the beam here, and then the hands and feet repeat the downward climbing in turn, causing the skateboard 11 to step over multiple beams 4 in turn.

[0036] When the hook 8 and the worker accidentally fall off, the ground assistant will tighten the safety rope 9 to prevent the worker from falling.

[0037] The utility model adopts that when the worker climbs up, the slide plate 11 squeezes the limit block 5 to make the limit block 5 move inward, and when the slide plate 11 steps over the limit block 5, the limit block 5 can move outward and reset, so that the slide plate 11 cannot move downward. The above structure cooperates firmly and has no safety hazards;

[0038] When the worker moves downward, he only needs to press the slider 6 on the beam 4 with the same height as the slide 11. The operation is simple and there is no unnecessary movement. Moreover, when the worker climbs up and down, both hands are always on the beam 4.

[0039] At the same time, since the safety rope 9 is fixed to the worker through the round hole 10 on the pull rod 3, when the hook 8 fails, the ground assistants can further improve the safety of the workers by holding the safety rope 9 tightly, providing higher protection for the workers' construction.

Claims

1. A communication tower high-altitude operation anti-fall device, characterized in that: The invention comprises two rectangular frames (1), the rectangular frames (1) are placed vertically and are parallel and symmetrical on the left and right sides. A plurality of cross beams (4) are evenly distributed on the inner rear ends of the two rectangular frames (1). A limit block (5) is inserted at each end of each cross beam (4). The limit block (5) is always subjected to an outward force. Slide blocks (6) are inserted at the upper and lower ends of the outer end surfaces of the cross beams (4). When the slide blocks (6) move downward, the limit blocks (5) can move toward the center of the cross beams (4). When the slide blocks (6) move upward, the limit blocks (5) can extend out of the left and right end surfaces of the cross beams (4). Each rectangular frame (1) has a pull rod (3) on the front side that can slide up and down. The pull rod (3) is placed horizontally. The inner end of each pull rod (3) is placed between the two rectangular frames (1). A hook (8) is fixed to the inner end of each pull rod (3). The two hooks (8) are placed left and right. When the pull rod (3) slides upward, it can step over the limit block (5); when the pull rod (3) slides downward, the limit block (5) can block the movement of the pull rod (3).

2. The communication tower high-altitude operation anti-fall device according to claim 1 is characterized in that: When the limit block (5) moves outward, its outer end extends out of the outer end surface of the rectangular frame (1); When the pull rod (3) moves upward, it presses the limit block (5) inwardly, so that the pull rod (3) passes over the limit block (5); when the pull rod (3) slides downward, the limit block (5) can prevent the pull rod (3) from moving.

3. The communication tower high-altitude operation anti-fall device according to claim 2 is characterized in that: The cross beam (4) is a cylindrical structure, and a rectangular groove is respectively formed at the left and right ends of the cross beam (4). The limit block (5) is a rectangular block, and the limit block (5) is placed in the rectangular groove. There is a compression spring in each rectangular groove, one end of the compression spring is fixed to the bottom surface of the rectangular groove, and the other end is fixed to the limit block (5). One end of the limit block (5) extending out of the end surface of the cross beam (4) is a slope inclined downward.

4. The communication tower high-altitude operation anti-fall device according to claim 3 is characterized in that: Each of the cross beams (4) has a rectangular groove at the middle upper end in the left-right direction of the outer edge surface, and each rectangular groove has a blind hole at the bottom. The slider (6) is a rectangular block, and each slider (6) has a round rod at the lower end that can be inserted into the blind hole. The slider (6) slides up and down in the rectangular groove; A rope is fixed to the bottom of each limit block (5), and the other end of each rope passes through the bottom of the rectangular groove and is fixed to the round rod on the slider (6).

5. The communication tower high-altitude operation anti-fall device according to claim 4 is characterized in that: Each rectangular frame (1) is provided with two guide rods (2) symmetrical in the front-to-back direction on the outside, the plane formed by the two guide rods (2) on the same side is parallel to the rectangular frame (1), and the guide rod (2) located at the rear side of the two guide rods (2) on the same side is placed in the same plane as the crossbeam (4); A slide plate (11) is mounted on the two guide rods (2) on the same side and slides up and down on the guide rods (2). The outer end of each pull rod (3) passes through the rectangular frame (1) and is fixed on the slide plate (11); When the slide plate (11) moves upward, it presses the limit block (5) inwardly, and when the slide plate (11) slides downward, the limit block (5) prevents the slide plate (11) from moving downward; A circular hole (10) is formed on the left and right sides of each slide plate (11), and the circular hole (10) passes through the pull rod (3).

6. The communication tower high-altitude operation anti-fall device according to claim 5 is characterized in that: The rectangular frame (1) is a rectangular frame surrounded by four rods, the pull rod (3) passes through the rectangular frame, and a flat plate is fixed to the upper and lower ends of the outer side surface of each rectangular frame (1), and the upper and lower ends of the guide rod (2) are fixed to the flat plate; A plurality of fixing blocks (7) are evenly distributed on each guide rod (2), one end of the fixing block (7) is fixed to the guide rod (2), and the other end is fixed to the rectangular frame (1); Each slide plate (11) has a notch formed in the front-to-rear direction of the inner side surface thereof. When the slide plate (11) slides up and down, the notch passes over the connecting block (9).

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