Anti-falling device for metal roof building construction

Abstract

The invention relates to the technical field of construction protection equipment, and discloses an anti-falling device for metal roof building construction, the anti-falling device comprises two groups of safety cables, a sliding shuttle connected with the safety cables and a staggered seat, the safety cables are mounted on a metal roof in a straightened state, sliding sleeves and movable baffles are arranged at the two ends of the sliding shuttle, and the staggered seat is connected with the sliding shuttle. The sliding sleeve and the movable baffle are combined to form a kidney-shaped hole, a notch is reserved in the kidney-shaped hole, the size of the notch changes along with movement of the movable baffle, and when the notch is smallest, the safety cable cannot penetrate through the notch. According to the anti-falling device for metal roof building construction, the sliding shuttles slide along the two safety cables, higher bearing capacity and safety redundancy are achieved, the impact resistance is higher, meanwhile, when the moving directions of workers are inconsistent and the workers intersect, the sliding shuttles on the two sides of the staggered base pass through the staggered base from the two sides of the staggered base respectively, position exchange is achieved automatically, and the safety of the workers is improved. And the times of moving the safety cable by workers are reduced.

Description

Technical Field

[0001] This application relates to the technical field of construction protection equipment, and particularly relates to a fall prevention device for metal roof construction. Background Art

[0002] A metal roof refers to a roof form that uses metal materials as the load-bearing and connecting framework of the roof system, uses metal plates as the load-bearing or waterproof materials of the roof system, and cooperates with structures such as heat insulation, sound insulation, and waterproofing to achieve the various functional requirements of the roof system. When installing a metal roof, workers need to stand on the roof to install steel plates. The height of the factory building is relatively high, and the roof steel plates are relatively slippery. The danger during the construction process is great, and the protection of the lives and safety of construction workers is a very important link.

[0003] The existing fall prevention device installs a safety cable through a fixing piece. The two ends of the safety cable are tightened. One end of the safety rope is tied to the worker, and the other end slides on the safety cable through a sliding shuttle.

[0004] However, during the construction process, the moving directions of each worker are not the same. When two workers move in opposite directions, or only one worker moves, the corresponding two sliding shuttles will inevitably interfere with each other when moving to the same position. To save trouble, workers may operate illegally and untie the safety rope, which is likely to cause safety accidents. Summary of the Invention

[0005] This application provides a fall prevention device for metal roof construction. When the moving directions of workers are not the same and they meet, the sliding shuttles on both sides of the staggering seat pass through the staggering seat from both sides of the staggering seat respectively, realizing the position exchange by themselves. It is more convenient for workers to use. At the same time, the number of times workers walk towards the safety cable is reduced, and workers can spend more time on work, improving work efficiency.

[0006] To achieve the above object, this application adopts the following technical solution: A fall prevention device for metal roof construction, comprising: Two groups of safety cables, which are installed on the metal roof in a straightened state; A sliding shuttle connected to the safety rope. Both ends of the sliding shuttle are provided with sliding sleeves and moving baffles. The sliding sleeves and the moving baffles form a waist-shaped hole. The waist-shaped hole has a notch, and the size of the notch changes with the movement of the moving baffle. When the notch is the smallest, the safety cable cannot pass through the notch; A guiding block that drives the moving baffle and the sliding shuttle to move; The offset seat has first guiding members and two sets of second guiding members provided at both ends thereof. The two first guiding members are diagonally arranged. When the guiding block moves along the first guiding member, the notch on one side becomes large enough to allow the safety cable to escape. When the guiding block moves along the two sets of second guiding members, the shuttle rotates around the safety cable that has not escaped. After the shuttle passes over the offset seat, it is reset under the guidance of the second guiding member on the other side.

[0007] Furthermore, first latches are connected to both sides of the offset seat through connecting plates. The first latches are connected to safety cables. The connecting plates can pass through the smallest notch. The connecting plates are "L"-shaped. The angle between the notch and the horizontal plane is the same as the maximum rotation angle of the shuttle. After the shuttle rotates, the notch just aligns with the connecting plate, and the position of the shuttle and the offset seat is relatively consistent by using the safety cable for guiding and positioning.

[0008] Furthermore, the offset seat is installed on the metal roof through a fixing seat, and the offset seat is fixed to the fixing seat through fastening bolts.

[0009] Furthermore, a set of offset seats are provided between adjacent shuttles. The offset seats slide on the safety cable through the first latches. The first latches are provided with chutes. The relative positions of the notches between the sliding sleeves and the moving baffles are the same as those of the chutes. The shuttles and the offset seats can pass through the support synchronously.

[0010] Furthermore, blocking plates are provided on both sides of the offset seat. The blocking plates pass through the offset seat and are movably connected to the offset seat. The blocking plates are kept in a state of protruding from one side under the action of elastic force and can block the shuttle from continuing to pass. A permanent magnet is provided at the other end of the blocking plate. A driving block corresponding to the blocking plate is provided at the bottom of the shuttle. The driving block and the blocking plate show mutual attraction, and the suction force can drive the blocking plate to retract into the offset seat to release the shuttle. The two blocking plates are rotationally symmetric to ensure that the shuttles on both sides meet at the top of the offset seat.

[0011] Furthermore, the guiding block acts with the first guiding member to drive the whole shuttle to move horizontally. The moving baffle is connected to the shuttle through an adjusting member. Any one of the moving baffles can expand and contract relative to the adjusting member. The adjusting member includes a positioning spring and a box body. The shuttle and the box body are fixedly connected. The moving baffles on both sides are slidably connected to the box body. The positioning spring keeps the moving baffle in an extended state. The end of the moving baffle consists of a vertical section and an arc section. The horizontal projection of the safety cable is on the vertical section.

[0012] Furthermore, a limiting plate is provided in the box body. The limiting plate is movably connected to the box body through a positioning rod. A spring is provided between the limiting plate and the box body. The spring makes the limiting plate press against the moving baffle. When the limiting plate presses against the moving baffle, the moving baffle cannot move. The guiding block is fixedly connected to the limiting plate. When the guiding block and the first guiding member interact, the guiding block will also move downward. The guiding block is "T"-shaped.

[0013] Further, the second guiding member is a T-shaped groove. The second guiding member and the first guiding member are connected end to end to guide the guiding block into the T-shaped groove. The bottom of the guiding block is a semi-cylinder.

[0014] The beneficial effects of the present invention are as follows: A fall prevention device for metal roof construction provided by the present application. The sliding shuttle slides along two safety ropes, having a greater load-bearing capacity and safety redundancy, and stronger impact resistance. At the same time, when the movement directions of the workers are inconsistent, when they meet, the sliding shuttles on both sides of the staggered seat pass through the staggered seat from both sides of the staggered seat respectively, realizing position exchange by themselves, which is more convenient for the workers to use.

[0015] Further, the number of times the workers walk towards the safety rope is reduced, and the workers can spend more time on work, improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings: Figure 1 It is a schematic structural diagram of Embodiment 1 of the present invention; Figure 2 It is a schematic diagram of the staggered seat and the sliding shuttle in Embodiment 1 of the present invention; Figure 3 It is a side view of Embodiment 1 of the present invention; Figure 4 It is a side view when the sliding shuttle in Embodiment 1 of the present invention passes over the staggered seat; Figure 5 It is a schematic diagram of the adjusting member in Embodiment 1 of the present invention; Figure 6 It is a side view of Embodiment 2 of the present invention; Figure 7 It is a front view of Embodiment 2 of the present invention.

[0017] In the figure: 1, fixed seat; 2, staggered seat; 3, first buckle; 4, safety rope; 5, sliding shuttle; 6, sliding sleeve; 7, moving baffle; 8, rope loop; 9, first guiding member; 10, second guiding member; 11, guiding block; 12, connecting plate; 13, adjusting member; 131, positioning spring; 132, limiting plate; 133, spring; 134, box body; 14, permanent magnet; 15, blocking plate; 16, driving block. DETAILED DESCRIPTION OF THE INVENTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0019] Example 1. Please refer to Figures 1-4, A fall prevention device for metal roof construction, including a staggered seat 2 and a sliding shuttle 5. The staggered seat 2 is installed on the metal roof through a fixed seat 1. The fixed seat 1 is fixed on the metal roof through embedded parts and fastening bolts. In other embodiments, the fixed seat 1 can also be fixed on the lock edge of the metal roof through a clamping device. The staggered seat 2 is fixed on the fixed seat 1 through fastening bolts. Both sides of the staggered seat 2 are connected with a first lock 3 through a connecting plate 12. The first lock 3 is connected with a safety cable 4. The two ends of the safety cable 4 are connected with fixed parts arranged on the ground or wall through turnbuckles. The two safety cables 4 are in a taut state. Both ends of the sliding shuttle 5 are provided with sliding sleeves 6. The two sliding sleeves 6 are sleeved on the two safety cables 4. Above the sliding shuttle 5 is provided with a rope loop 8. The safety rope lock is hung on the rope loop 8. Below the sliding shuttle 5 are provided with two groups of moving baffles 7. The two groups of moving baffles 7 correspond to the two sliding sleeves 6 respectively. The sliding sleeve 6 and the moving baffle 7 form a waist-shaped hole that surrounds the safety cable 4, so that the safety cable 4 cannot escape from the space surrounded by the sliding sleeve 6 and the moving baffle 7. There is a notch in the space surrounded by the sliding sleeve 6 and the moving baffle 7. The size of the notch is appropriate. The safety cable 4 cannot pass through the notch, but the connecting plate 12 can pass through the notch. The moving baffle 7 is slidably connected with the sliding shuttle 5. The moving baffle 7 is drivingly connected with a guiding block 11. Both ends of the staggered seat 2 are connected with a first guiding member 9 corresponding to the guiding block 11. The two first guiding members 9 are diagonally arranged. When the sliding shuttle 5 approaches the staggered seat 2 from one side, the first guiding member 9 on one side contacts the guiding block 11 on one side, causing the moving baffle 7 to slide, and the notch expands to allow the safety cable 4 to escape. Both ends of the staggered seat 2 are provided with two groups of second guiding members 10. As the sliding shuttle 5 continues to approach the staggered seat 2, the guiding block 11 continues to slide on the second guiding member 10. The interaction between the guiding block 11 and the second guiding member 10 causes the sliding shuttle 5 to rotate around the non-escaped safety cable 4, and the rotation angle is greater than 60 degrees, so that the projection length of the sliding shuttle 5 in the vertical direction is less than half of the length of the sliding shuttle 5. The sliding shuttle 5 temporarily stops moving. When the sliding shuttle 5 on the other side of the staggered seat 2 moves towards the staggered seat 2, due to the diagonal arrangement of the two first guiding members 9, the sliding shuttle 5 on the other side rotates around the safety cable 4 on the other side. The two sliding shuttles 5 on both sides of the staggered seat 2 rotate around the two safety cables 4 respectively when passing through the staggered seat 2. Therefore, when the two sliding shuttles 5 on both sides of the staggered seat 2 meet at the position of the staggered seat 2, they will stagger automatically and do not interfere with each other. The sliding shuttle 5 continues to move and will move along the second guiding member 10 on the opposite side and gradually become horizontal. After passing through the second guiding member 10, the sliding sleeve 6 and the moving baffle 7 re-enclose the safety cable 4. At the same time, the guiding block 11 loses the restraint of the first guiding member 9 and the second guiding member 10, driving the moving baffle 7 to reset.

[0020] The connecting plate 12 is in an "L" shape. The included angle between the notch between the sliding sleeve 6 and the moving baffle 7 and the horizontal plane is the same as the maximum rotation angle of the sliding shuttle 5. The rotation angle of the sliding shuttle 5 is determined by the torsion angle of the second guide 10. The axis of torsion of the second guide 10 is the axis of the safety cable 4. After the sliding shuttle 5 rotates, the notch just aligns with the connecting plate 12. When the sliding shuttle 5 does not rotate, there is an included angle between the notch and the horizontal direction, and the safety cable 4 will not approach the notch.

[0021] Please refer to Figures 3-5 , the guide block 11 acts with the first guide 9 to drive the whole sliding shuttle 5 to move horizontally. The moving baffle 7 is connected to the sliding shuttle 5 through the adjusting member 13. Any one of the moving baffles 7 can expand and contract relative to the adjusting member 13. The adjusting member 13 includes a positioning spring 131 and a box body 134. The sliding shuttle 5 and the box body 134 are fixedly connected. The moving baffles 7 on both sides are connected into a whole through a connecting rod. The connecting rod passes through the box body 134. The positioning spring 131 makes the moving baffle 7 in a centered state. When centered, the notches formed by the sliding sleeves 6 and the moving baffles 7 on both sides are in the smallest state. A positioning plate is provided in the middle of the moving baffle 7. Positioning springs 131 are provided on both sides of the positioning plate. The positioning springs 131 on both sides make the moving baffle 7 in a centered state. The end of the moving baffle 7 is composed of a vertical section and an arc section. When the guide block 11 and the first guide 9 interact, for example, when the sliding shuttle 5 moves to the right, the moving baffle 7 on the right presses against the safety cable 4. The moving baffle 7 on the right is stressed and contracts relative to the adjusting member 13, and the notch on the right becomes larger. As the sliding shuttle 5 continues to move, the first guide 9 and the second guide 10 interact to make the sliding shuttle 5 rotate, and the safety cable 4 disengages from the notch. During the process of the safety cable 4 disengaging, it squeezes the moving baffle 7, causing the moving baffle 7 to retract further.

[0022] To ensure the reliability of the sliding shuttle 5 and ensure that the safety cable 4 will not disengage during the sliding process of the sliding shuttle 5, a limiting plate 132 is provided in the box body 134. The limiting plate 132 is movably connected to the box body 134 through a positioning rod. A spring 133 is provided between the limiting plate 132 and the box body 134. The spring 133 makes the limiting plate 132 closely adhere to the moving baffle 7. The corresponding surfaces of the limiting plate 132 and the spring 133 are rough or they mesh. When the limiting plate 132 closely adheres to the moving baffle 7, the moving baffle 7 will not move, and the notch between the sliding sleeve 6 and the moving baffle 7 will not become larger. The guide block 11 is fixedly connected to the limiting plate 132. When the guide block 11 and the first guide 9 interact, the guide block 11 will also move downward, that is, the first guide 9 is both inclined left and right and also inclined up and down. The guide block 11 is in a "T" shape. The guide block 11 moves downward to pull the limiting plate 132, causing the limiting plate 132 to disengage from the moving baffle 7.

[0023] The second guide 10 is a T-shaped groove. The first guide 9 guides the guide block 11 into the T-shaped groove. The bottom of the guide block 11 is a semi-cylinder, which facilitates the sliding of the guide block 11 in the second guide 10. The second guide 10 locks the first guide 9, making the shuttle 5 and the stagger seat 2 form an integral body relatively. The shuttle 5 can transmit the acting force to the released safety cable 4 through the stagger seat 2, ensuring that two safety cables are stressed at any time.

[0024] Embodiment 2: In Embodiment 1, one-to-one and many-to-one intersections can be well achieved. When workers move in different directions, they can complete the intersection without unlocking the safety rope buckle. However, one-to-many and many-to-many intersections cannot be achieved, and it is also relatively troublesome to have to intersect at the position where the fixed seat 1 is located. Therefore, on the basis of Embodiment 1, the setting method of the stagger seat 2 is changed, and the stagger seat 2 is changed from fixed to sliding. Please refer to Figure 6 and Figure 7 , a stagger seat 2 is provided between every two adjacent shuttles 5. Since the shuttle 5 needs to overcome the elastic force between the adjusting member 13 and the moving baffle 7 first when moving onto the stagger seat 2, and this elastic force is greater than the resistance of the stagger seat 2 sliding along the safety cable 4, the stagger seat 2 will be pushed by the shuttle 5 to move. The first buckle 3 is provided with a chute, and the relative positions of the notch between the sliding sleeve 6 and the moving baffle 7 and the chute are the same. Through the notch and the chute, the stagger seat 2 and the shuttle 5 can smoothly pass through the support between the fixed seat 1 and the safety cable 4.

[0025] When any two workers intersect, the two shuttles 5 pass through from both sides of the stagger seat 2 respectively. After passing through, there is still a stagger seat 2 between the two shuttles 5, enabling one-to-many and many-to-many intersections.

[0026] To ensure that the two shuttles 5 can smoothly intersect on the stagger seat 2, two groups of blocking plates 15 are provided on the stagger seat 2. The blocking plates 15 are located near the edge of the stagger seat and are rotationally symmetric. The blocking plates 15 pass through the stagger seat 2 and are movably connected to the stagger seat 2. One end of the blocking plate 15 can stretch relative to the stagger seat 2. The blocking plate 15 remains in the extended state under the action of elastic force. A permanent magnet 14 is provided at the other end of the blocking plate 15. A driving block 16 corresponding to the blocking plate 15 is provided at the bottom of the shuttle 5. The driving block 16 and the blocking plate 15 show attraction. When the two shuttles 5 intersect, one of the shuttles 5 may first move onto the stagger seat 2. When the shuttle 5 coincides with the stagger seat 2, the shuttle 5 is blocked by the blocking plate 15. At the same time, the driving block 16 on this shuttle 5 drives the other blocking plate 15 to retract. After this side of the shuttle 5 is stopped, the other side of the shuttle 5 starts to move onto the stagger seat 2. When the other side of the shuttle 5 also reaches the top of the stagger seat 2, the driving block 16 drives the blocking plate 15 to retract through the permanent magnet 14, releasing the shuttle 5, and the two shuttles 5 continue to move to complete the position exchange.

[0027] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fall prevention device for metal roof construction, comprising: Two groups of safety ropes (4), the safety ropes (4) are installed on the metal roof in a straightened state, and it is characterized in that it further comprises: A shuttle (5) connected to the safety rope, both ends of the shuttle (5) are provided with sliding sleeves (6) and movable baffles (7), the sliding sleeves (6) and the movable baffles (7) are combined into a waist-shaped hole, the waist-shaped hole has a notch, and the size of the notch changes with the movement of the movable baffle (7). When the notch is the smallest, the safety rope (4) cannot pass through the notch; A guide block (11), the guide block (11) drives the movable baffle (7) and the shuttle (5) to act; A stagger seat (2), both ends of the stagger seat (2) are provided with a first guide member (9) and two groups of second guide members (10), the two first guide members (9) are arranged diagonally. When the guide block (11) moves along the first guide member (9), the notch on one side becomes larger so that the safety rope (4) can escape. When the guide block (11) moves along the two groups of second guide members (10), the shuttle (5) rotates around the safety rope (4) that has not escaped. After the shuttle (5) passes over the stagger seat (2), it is reset under the guidance of the second guide member (10) on the other side.

2. The anti-falling device for metal roof construction according to claim 1, characterized in that, Both sides of the stagger seat (2) are connected with a first buckle (3) through a connecting plate (12), the first buckle (3) is connected with the safety rope (4), the connecting plate (12) can pass through the smallest notch, the connecting plate (12) is in an "L" shape, the included angle between the notch and the horizontal plane is the same as the maximum rotation angle of the shuttle (5), and after the shuttle (5) rotates, the notch just aligns with the connecting plate (12).

3. The anti-falling device for metal roof construction according to claim 2, characterized in that, The stagger seat (2) is installed on the metal roof through a fixed seat (1), and the stagger seat (2) is fixed on the fixed seat (1) through a fastening bolt.

4. The anti-falling device for metal roof construction according to claim 2, characterized in that, A group of stagger seats (2) are arranged between two adjacent shuttles (5), the stagger seat (2) slides on the safety rope (4) through the first buckle (3), the first buckle (3) is provided with a chute, and the relative positions of the notch between the sliding sleeve (6) and the movable baffle (7) and the chute are the same.

5. The anti-falling device for metal roof construction according to claim 4, characterized in that, Both sides of the stagger seat (2) are provided with blocking plates (15), the blocking plates (15) pass through the stagger seat (2) and are movably connected to the stagger seat (2). The blocking plates (15) are kept in a state of protruding on one side under the action of elastic force and can block the continuous passage of the shuttle (5). The other end of the blocking plate (15) is provided with a permanent magnet (14), and the bottom of the shuttle (5) is provided with a driving block (16) corresponding to the blocking plate (15). The driving block (16) and the blocking plate (15) show attraction, and the attraction can drive the blocking plate (15) to retract into the stagger seat (2) to release the shuttle (5), and the two blocking plates (15) are rotationally symmetric.

6. A fall prevention device for metal roof construction, according to claim 3 or 5, characterized in that, The guiding block (11) acts with the first guiding member (9) to drive the whole shuttle (5) to move horizontally. The moving baffle (7) is connected to the shuttle (5) through an adjusting member (13). Any one of the moving baffles (7) can expand and contract relative to the adjusting member (13). The adjusting member (13) includes a positioning spring (131) and a box body (134). The shuttle (5) is fixedly connected to the box body (134). The moving baffles (7) on both sides are slidably connected to the box body (134). The positioning spring (131) keeps the moving baffle (7) in the extended state. The end of the moving baffle (7) consists of a vertical section and an arc section. The horizontal projection of the safety cable (4) is on the vertical section.

7. A fall prevention device for metal roof construction, according to claim 6, characterized in that, A limiting plate (132) is arranged in the box body (134). The limiting plate (132) is movably connected to the box body (134) through a positioning rod. A spring (133) is arranged between the limiting plate (132) and the box body (134). The spring (133) makes the limiting plate (132) tightly press against the moving baffle (7). When the limiting plate (132) tightly presses against the moving baffle (7), the moving baffle (7) cannot move. The guiding block (11) is fixedly connected to the limiting plate (132). When the guiding block (11) and the first guiding member (9) interact with each other, the guiding block (11) will also move downward. The guiding block (11) is in a "T" shape.

8. A fall prevention device for metal roof construction, according to claim 7, characterized in that, The second guiding member (10) is a T-shaped groove. The second guiding member (10) and the first guiding member (9) are connected end to end to guide the guiding block (11) into the T-shaped groove. The bottom of the guiding block (11) is a semi-cylinder.

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