Anti-falling flexible guide rail tensioning and rolling tool

Abstract

The application discloses an anti-falling flexible guide rail tensioning and rolling tool, which comprises a rack, the rack is integrally formed with connecting ears on the side, the rack is provided with a rolling unit, the rolling unit comprises a supporting frame fixed on the rack, a rolling roller is rotatably connected to the supporting frame, limiting flanges are slidably sleeved on the two sides of the rolling roller, two groups of adjusting rods movably and pluggably arranged on the supporting frame are fixed on the outer sides of each group of limiting flanges, an electric push rod one is installed on the outer side of the supporting frame, and a T-shaped support fixed on the end faces of the two groups of adjusting rods is fixed on the output end of the electric push rod one. The application belongs to the technical field of high-altitude anti-falling equipment matching tooling, and effectively solves the problems of the unadjustable limiting structure of the existing anti-falling flexible guide rail tensioning and rolling tool, the lack of independent tension adjusting function and the influence on use.

Description

Technical Field

[0001] This invention belongs to the technical field of supporting tooling for high-altitude fall protection equipment, specifically referring to a tensioning and winding tool for a flexible fall protection guide rail. Background Technology

[0002] Fall arrestor flexible guide rails are specialized lifeline protection components used in high-altitude steel structures, wind turbine towers, building exteriors, shipbuilding and repair operations. They are typically made of ultra-high-strength polyethylene fiber and aramid fiber woven into a strip-shaped flexible structure. Workers move along the guide rail using a matching sliding self-locking device. In the event of a fall, the flexible guide rail must instantly withstand the impact load from the human body. The density of the guide rail's weave, the stress state of the internal fibers, and the degree of bending damage directly determine the success or failure of fall protection. As a special equipment safety load-bearing component, it has strict requirements for storage, transportation, and handling. After on-site operations are completed, long-distance flexible guide rails need to be rolled up and stored.

[0003] However, existing tensioning and winding tools still have shortcomings: traditional winding rollers have welded and fixed baffles on both sides, which can only be used with guide rails of a single width; during the winding process, the guide rails are not laterally constrained, continuously shifting left and right, with multiple layers overlapping and winding, and the guide rails at the edge are rigidly squeezed by the two layers of roll material, causing the surface wear-resistant sheath to crack and the internal bearing fibers to be sheared and worn; the offset stacking also causes unevenness on the end face of the roll material, resulting in localized stress concentration during storage and hoisting, which aggravates aging and damage.

[0004] The flexible guide rail is formed by multiple layers of woven fibers, with the fibers relying on uniform adhesion to form overall tensile strength. If there is no stable tension throughout the winding process, the tension will fluctuate during winding, affecting the safety of use. Summary of the Invention

[0005] The technical problem to be solved by this invention is that the limiting structure of the existing anti-fall flexible guide rail tensioning and winding tool is not adjustable and has no independent tension adjustment function, which affects its use.

[0006] The technical solution adopted in this invention is as follows: This invention proposes a fall-prevention flexible guide rail tensioning and winding tool, comprising a frame, with connecting ears integrally formed on the side of the frame, and a winding unit provided on the frame. The winding unit includes a support frame fixedly connected to the frame, and a winding roller rotatably connected to the support frame. Limiting flanges are slidably fitted on both sides of the winding roller. Two sets of adjusting rods that are movably inserted and removed from the support frame are fixedly connected to the outer side of each set of limiting flanges. An electric push rod is installed on the outer side of the support frame, and a T-shaped support that is fixedly connected to the end face of the two sets of adjusting rods is fixedly connected to the output end of the electric push rod.

[0007] Furthermore, a protective housing is provided on the outer side of one side of the support frame, and a motor is installed inside the protective housing. A gear is fixedly connected to the output shaft of the motor, and a gear ring that meshes with the gear is fixedly connected to the end face of the take-up roller extending to the outer side of the support frame.

[0008] Furthermore, a tensioning device frame is fixedly connected to the frame, and sliding grooves are provided on both sides of the tensioning device frame. A U-shaped slide block is slidably provided in the sliding groove, and a tensioning guide rod is rotatably connected in the U-shaped slide block.

[0009] Furthermore, an electric push rod two, fixed by a flange, is inserted through the upper part of the tensioning device frame. The output end of the electric push rod two is fixedly connected to the upper part of the U-shaped slide. Guide rods that are movably inserted and removed from the top of the tensioning device frame are fixedly connected to both sides of the upper part of the U-shaped slide.

[0010] Furthermore, an adjusting slide block located in front of the tensioning equipment frame is fixedly connected to the upper part of the frame, a sliding block is slidably provided inside the adjusting slide block, and a guide ring is fixedly connected to the upper part of the sliding block.

[0011] Furthermore, a second motor is mounted on the side of the adjusting slide, and a threaded rod that rotates inside the adjusting slide is fixedly connected to the output shaft of the second motor. The sliding block is threadedly connected to the threaded rod.

[0012] Furthermore, the opening of the adjusting slide is provided with accordion-style baffles fixed to both sides of the sliding block.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows: 1. A winding unit is set up, which relies on two sets of electric push rods to control the extension and retraction synchronously. The spacing can be adjusted by pushing the limit stop through the adjustment rod. It can adapt to different anti-fall flexible guide rail winding requirements and limit the axial slippage and misalignment of the guide rail. 2. Add a tensioning device frame. Adjust the tensioning guide rod by using an electric push rod and a guide rod to move the tensioning guide rod up and down, adjust the winding tension, and prevent excessive tension from damaging the guide rail or insufficient tension from causing loosening and knotting. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure from another perspective of an embodiment of the present invention; Figure 3 A reference diagram showing the usage status of the limit stop and the take-up roller; Figure 4 Refer to the diagram for adjusting the usage state of the slide; Figure 5 This is a reference diagram showing the usage status of the tensioning equipment frame.

[0015] The components include: 1. Frame; 11. Connecting ear; 12. Support frame; 13. Take-up roller; 14. Limiting stop; 15. Adjusting rod; 16. Electric push rod one; 17. T-shaped support; 2. Protective housing; 3. Motor one; 31. Gear; 32. Gear ring; 4. Tensioning equipment frame; 41. Sliding groove; 42. U-shaped slide; 43. Tensioning guide rod; 5. Electric push rod two; 51. Guide rod; 6. Adjusting slide; 61. Sliding block; 62. Guide ring body; 7. Motor two; 71. Threaded rod; 72. Bellows baffle. Detailed Implementation

[0016] like Figure 1-5 As shown, this invention proposes a tensioning and winding tool for fall-prevention flexible guide rails, comprising a frame 1. The frame 1 is integrally welded from thickened steel, resulting in high structural strength and adaptability to complex construction site environments. Connecting lugs 11 are integrally formed on the side of the frame 1, allowing the entire machine to be fixed to a work platform or maintenance vehicle frame via bolts. A winding unit is provided on the frame 1, including a support frame 12 fixed to the frame 1. A winding roller 13 is rotatably connected to the support frame 12, with a minimum diameter meeting the minimum bending radius requirements of the fall-prevention flexible guide rail specifications to prevent hard breakage during guide rail winding. Limiting flanges 14 are slidably fitted on both sides of the winding roller 13. Wear-resistant copper sleeve sliding holes are formed in the center of the limiting flanges 14, which are clearance-fitted with the outer wall of the winding roller 13, ensuring smooth sliding and wear resistance. A layer of polyurethane buffer pad is pasted on the inner side wall of the take-up roller 13 in the middle to prevent the metal hard edge from directly squeezing and scratching the woven protective sleeve on the surface of the flexible guide rail. Two sets of adjusting rods 15, which are movably inserted and removed on the support frame 12, are fixedly connected to the outer side of each set of limiting stops 14. These rods provide lateral guidance and prevent deflection of the limiting stops 14. An electric push rod 16 is installed on the outer side of the support frame 12. A T-shaped support 17, which is fixed to the end face of the two sets of adjusting rods 15, is fixed to the output end of the electric push rod 16. When the electric push rod 16 is activated to extend or retract, the two adjusting rods 15 can be pushed and pulled simultaneously through the T-shaped support 17. This causes the limiting stops 14 on the same side to slide smoothly along the axial direction of the take-up roller 13. The limiting stops 14 on both sides move synchronously towards or away from each other, thereby adjusting the accommodating width between the two sets of limiting stops 14.

[0017] A protective housing 2 is provided on the outer side of the support frame 12 on one side for protection. A motor 3 is installed inside the protective housing 2. A gear 31 is fixedly connected to the output shaft of the motor 3. The end face of the take-up roller 13 extending to the outer side of the support frame 12 is fixedly connected to a gear ring 32 that meshes with the gear 31. When the motor 3 is running, it drives the gear ring 32 and the take-up roller 13 to rotate synchronously through the meshing transmission of the gear 31, so as to realize the automatic winding and storage of the anti-fall flexible guide rail. The gear 31 meshing transmission ratio is stable, which can accurately control the speed of the take-up roller 13 and avoid the guide rail tension from fluctuating the winding speed. At the same time, the protective housing 2 protects the gear 31 and the gear ring 32 to avoid mechanical pinching and other problems.

[0018] A tensioning device frame 4 is fixedly connected to the frame 1. The tensioning device frame 4 is vertically arranged in front of the winding unit and has a rectangular frame structure. Sliding grooves 41 are provided on both sides of the tensioning device frame 4. A U-shaped slide block 42 is slidably arranged in the sliding groove 41. The sliding groove 41 provides a vertical limit for the U-shaped slide block 42 to prevent lateral deviation during sliding. A tensioning guide rod 43 is rotatably connected in the U-shaped slide block 42. By adjusting the height, it plays a tensioning role during the winding process.

[0019] An electric push rod 2 5, fixed by a flange, is installed on the upper part of the tensioning device frame 4. The output end of the electric push rod 2 5 is fixedly connected to the upper part of the U-shaped slide 42 on the upper part of the tensioning device frame 4. Guide rods 51, which are movably inserted and removed from the top of the tensioning device frame 4, are fixedly connected to both sides of the upper part of the U-shaped slide 42. When the electric push rod 2 5 is activated to perform lifting and telescopic movements, the tensioning guide rod 43 slides smoothly up and down without jamming. By changing the vertical height of the tensioning guide rod 43, the contact angle between the flexible guide rail and the tensioning guide rod 43 is adjusted, thereby precisely adjusting the winding tension during the guide rail conveying process. When the tension is too high, the tensioning guide rod 43 is raised to reduce the contact angle and relieve the force; when the tension is insufficient, the tensioning guide rod 43 is lowered to increase the contact angle and tighten the guide rail, achieving constant tension winding throughout the entire process. A tension sensor is installed at the end of the tensioning guide rod 43. The sensor collects the winding tension value of the guide rail in real time and feeds it back to the control box. The system automatically controls the electric push rod 25 to extend and retract to raise and lower the tensioning guide rod 43 according to the set tension threshold, thereby judging and adjusting the winding tension in real time to achieve constant tension winding control.

[0020] An adjusting slide 6 is fixedly connected to the upper part of the frame 1, located in front of the tensioning equipment frame 4. The adjusting slide 6 is horizontally arranged at the front end of the whole machine, providing a forward reciprocating guide for the winding of the guide rail. A sliding block 61 is slidably provided inside the adjusting slide 6. A guide ring 62 is fixedly connected to the upper part of the sliding block 61. A through channel is opened in the center of the guide ring 62, and all edges are rounded and chamfered. The anti-fall flexible guide rail passes through the guide ring 62.

[0021] A second motor 7 is mounted on the side of the adjusting slide 6. A threaded rod 71, which rotates inside the adjusting slide 6, is fixedly connected to the output shaft of the second motor 7. The sliding block 61 is threadedly connected to the threaded rod 71. When the second motor 7 rotates alternately in the forward and reverse directions, it drives the threaded rod 71 to reciprocate in both directions. The threaded transmission drives the sliding block 61, together with the upper guide ring 62, to slide back and forth at a uniform speed along the transverse direction of the adjusting slide 6. This continuously corrects the lateral position of the flexible guide rail and guides the guide rail to be evenly distributed in a single layer on the surface of the take-up roller 13. This prevents the guide rail from being stacked in the same section of the roller for a long time, which would cause local multi-layer winding and fiber creases due to the excessively small bending radius of the inner guide rail.

[0022] The opening of the adjusting slide 6 is provided with accordion-style baffles 72 fixed to both sides of the sliding block 61. When the sliding block 61 drives the guide ring 62 to move back and forth, the accordion-style baffles 72 simultaneously extend and fold, completely covering the opening of the sliding cavity inside the adjusting slide 6. After adjusting the accommodating width of the limiting baffles 14 on both sides, the reciprocating movement range of the guide ring inside the adjusting slide 6 is synchronously adapted to the baffle limiting range. Through the control box, it is ensured that the guide rail is neatly wound within the baffle limiting width throughout the entire process, preventing deviation and stacking.

[0023] The above is the entire process for using the anti-fall flexible guide rail tensioning and winding tool.

[0024] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fall-prevention flexible guide rail tensioning and winding tool, comprising a frame (1), wherein the frame (1) has a connecting lug (11) integrally formed on its side, and a winding unit is provided on the frame (1), characterized in that: The winding unit includes a support frame (12) fixedly connected to the frame (1), a winding roller (13) rotatably connected to the support frame (12), and limit stops (14) slidably fitted on both sides of the winding roller (13). Two sets of adjusting rods (15) that are movably inserted and removed on the support frame (12) are fixedly connected to the outer side of each set of limit stops (14). An electric push rod (16) is installed on the outer side of the support frame (12), and a T-shaped support (17) that is fixedly connected to the end face of the two sets of adjusting rods (15) is fixedly connected to the output end of the electric push rod (16).

2. The anti-fall flexible guide rail tensioning and winding tool according to claim 1, characterized in that: A protective housing (2) is provided on the outside of the support frame (12) on one side. A motor (3) is installed inside the protective housing (2). A gear (31) is fixedly connected to the output shaft of the motor (3). A toothed ring (32) that meshes with the gear (31) is fixedly connected to the end face of the take-up roller (13) extending to the outside of the support frame (12).

3. The anti-fall flexible guide rail tensioning and winding tool according to claim 1, characterized in that: A tensioning device frame (4) is fixedly connected to the frame (1). Sliding grooves (41) are provided on both sides of the tensioning device frame (4). A U-shaped slide block (42) is slidably provided in the sliding groove (41). A tensioning guide rod (43) is rotatably connected in the U-shaped slide block (42).

4. The anti-fall flexible guide rail tensioning and winding tool according to claim 3, characterized in that: The upper part of the tensioning device frame (4) is provided with an electric push rod two (5) fixed by a flange. The output end of the electric push rod two (5) is fixedly connected to the upper part of the U-shaped slide (42). The upper sides of the U-shaped slide (42) are fixedly connected with guide rods (51) that are movably inserted and removed from the top of the tensioning device frame (4).

5. The anti-fall flexible guide rail tensioning and winding tool according to claim 3, characterized in that: An adjusting slide (6) located in front of the tensioning equipment frame (4) is fixedly connected to the upper part of the frame (1). A sliding block (61) is slidably provided in the adjusting slide (6). A guide ring (62) is fixedly connected to the upper part of the sliding block (61).

6. The anti-fall flexible guide rail tensioning and winding tool according to claim 5, characterized in that: The adjusting slide (6) is equipped with a second motor (7) on its side. A threaded rod (71) is fixedly connected to the output shaft of the second motor (7) and rotates inside the adjusting slide (6). The sliding block (61) is threadedly connected to the threaded rod (71).

7. The anti-fall flexible guide rail tensioning and winding tool according to claim 5, characterized in that: The opening of the adjusting slide (6) is provided with accordion-style baffles (72) fixed to both sides of the sliding block (61).

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