Safety protection device of tied arch operation platform

Abstract

The utility model relates to the technical field of tied arch operation, and discloses a safety protection device of a tied arch operation platform, which comprises a bandage, a safety rope is arranged on the bandage, and the safety rope is fixed on the bandage through a safety buckle; the fixing assembly is arranged at one end of the bandage and comprises a tightening assembly, the tightening assembly comprises a rotating main shaft and a winding roller fixed to the main shaft, and the winding roller is used for winding and tightening the bandage; the clamping structure is configured to clamp and fix the other end of the bandage; and the clamping structure is fixed on the tightening assembly. By means of the design of the one-way ratchet wheel and the movable ratchet wheel sleeve, it is guaranteed that accidental loosening cannot occur in the tightening process, stability can be kept even under the sudden stress condition, workers are protected against injuries, the tightening process and the loosening process are easy to operate, one-way locking can be rapidly relieved, and the safety of the workers is guaranteed. And the binding belt can be quickly loosened in emergency, so that workers are helped to be out of a dangerous environment.

Description

Technical Field

[0001] The utility model relates to the technical field of tied arch operation, in particular to a safety protection device for a tied arch operation platform. Background Art

[0002] During the tied arch operation process, workers usually need to operate at height or in complex working environments and are often faced with the risk of falling. Traditional safety protection measures may have some shortcomings. The tightening and loosening operations of the device are not convenient enough, which affects work efficiency. In addition, it may not be able to be quickly released in an emergency, endangering the life safety of the workers. These problems may result in the inability to use the safety protection device quickly and effectively in an emergency, thereby increasing the risk of injury to workers. Therefore, a safety protection device for a tied arch working platform is proposed. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a safety protection device for a tied arch working platform.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a safety protection device for a tie arch work platform, comprising a strap, wherein the strap is provided with a safety rope, and the safety rope is fixed to the strap through a safety buckle; a fixing assembly, wherein the fixing assembly is arranged at one end of the strap, and comprises: a tightening assembly, wherein the tightening assembly comprises a rotating main shaft and a winding roller fixed on the main shaft, and the winding roller is used to wind and tighten the strap; a clamping structure, configured to clamp and fix the other end of the strap; the clamping structure is fixed on the tightening assembly.

[0005] As a further description of the above technical solution:

[0006] The tightening assembly also includes a fixed box, a one-way ratchet, a movable ratchet sleeve and a safety sleeve. The main shaft is rotatably connected in the fixed box, the one-way ratchet is fixedly connected to one end of the main shaft, the safety sleeve is fixedly installed on the fixed box, and the movable ratchet sleeve slides in the main shaft.

[0007] As a further description of the above technical solution:

[0008] The movable ratchet sleeve includes a sleeve ring, a connecting rod and a pull button. The sleeve ring and the connecting rod are fixedly connected to the two ends of the connecting rod respectively. A ratchet is fixedly connected to the inner circumference of the sleeve ring. The ratchet is engaged with the one-way ratchet. A sliding key is fixedly connected to the outer circumference of the ratchet.

[0009] As a further description of the above technical solution:

[0010] The safety sleeve includes a sleeve tube and a spring. The sleeve tube is fixedly connected to the fixed box. A key slot is provided inside the sleeve tube. The sliding key is slidably connected in the key slot. One end of the sleeve tube is fixedly connected to the bottom cover. The connecting rod passes through and slides on the bottom cover. The spring is sleeved on the connecting rod, and the two ends of the spring act on the sleeve ring and the bottom cover respectively.

[0011] As a further description of the above technical solution:

[0012] The clamping structure includes a clamping plate and a bidirectional screw. The clamping plate is fixedly connected to the fixing box. Anti-slip teeth are provided on the clamping plate. Threaded holes are opened at both ends of the winding roller, and bidirectional screws are installed in the threaded holes.

[0013] As a further description of the above technical solution:

[0014] The bidirectional screw includes a first threaded rod and a second threaded rod. The first threaded rod and the second threaded rod are coaxial and fixedly connected. The threads of the first threaded rod and the second threaded rod are arranged in opposite directions.

[0015] As a further description of the above technical solution:

[0016] Both ends of the bidirectional screw are fixedly connected with a rotating handle.

[0017] As a further description of the above technical solution:

[0018] The main shaft is fixedly connected with a driven bevel gear, the fixed box is rotatably connected with a rotating rod, both ends of the rotating rod are fixedly connected with a driving bevel gear and a rotating disk respectively, and the driving bevel gear is meshed with the driven bevel gear.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, the design of the one-way ratchet and the movable ratchet sleeve ensures that there will be no accidental loosening during the tightening process. Even under sudden force, it can remain stable and protect workers from injury. The tightening and loosening processes are simple to operate, and the one-way lock can be quickly released. In an emergency, the strap can be quickly loosened to help workers escape from dangerous environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of a safety protection device for a tied arch work platform proposed in the utility model;

[0022] Figure 2 This is a schematic diagram of the fixed assembly structure of a safety protection device for a tied arch work platform proposed in the present utility model;

[0023] Figure 3Schematic diagram of the exploded structure of the tightening assembly;

[0024] Figure 4 It is a schematic diagram of the explosion structure of the movable ratchet sleeve and the safety sleeve;

[0025] Figure 5 It is a schematic diagram of the connection between the movable ratchet sleeve and the safety sleeve;

[0026] Figure 6 This is an exploded schematic diagram of the clamping structure of the safety protection device of the tied arch working platform proposed in the utility model;

[0027] Figure 7 Schematic diagram of the structure of a bidirectional screw;

[0028] Figure 8 for Figure 2 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Strap; 2. Fixing assembly; 21. Tightening assembly; 211. Fixing box; 212. Main shaft; 213. Winding roller; 214. One-way ratchet; 215. Movable ratchet sleeve; 216. Sleeve ring; 217. Ratchet; 218. Connecting rod; 219. Pull button; 220. Sliding key; 221. Safety sleeve; 222. Sleeve tube; 223. Keyway; 224. Bottom cover; 225. Spring; 23. Clamping structure; 231. Clamping plate; 232. Anti-slip teeth; 233. Threaded hole; 234. Bidirectional screw; 235. First threaded rod; 236. Second threaded rod; 237. Turning handle; 24. Driven bevel gear; 25. Rotating rod; 26. Driving bevel gear; 27. Turntable. DETAILED DESCRIPTION

[0031] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figures 1-8The utility model provides an embodiment: it includes a strap 1, a safety rope is provided on the strap 1, and the safety rope is fixed to the strap 1 through a safety buckle; a fixing assembly 2, the fixing assembly 2 is arranged at one end of the strap 1, and it includes: a tightening component 21, the tightening component 21 includes a rotating main shaft 212 and a winding roller 213 fixed on the main shaft 212, and the winding roller 213 is used to wind and tighten the strap 1; a clamping structure 23 is configured to clamp and fix the other end of the strap 1; the clamping structure 23 is fixed to the tightening component 21. In one embodiment, the strap 1 is wrapped around the staff, and the fixing assembly 2 is used to tighten and fix the strap 1. The strap 1 is provided with a safety rope, and the safety rope is fixed to the strap 1 through a safety buckle to increase safety.

[0033] The tightening assembly 21 also includes a fixed box 211, a one-way ratchet 214, a movable ratchet sleeve 215 and a safety sleeve 221. The main shaft 212 is rotatably connected in the fixed box 211, the one-way ratchet 214 is fixedly connected to one end of the main shaft 212, the safety sleeve 221 is fixedly installed on the fixed box 211, and the movable ratchet sleeve 215 slides in the main shaft 212. The winding roller 213 can be a cylinder with grooves on the surface to better grasp the strap 1. The main shaft 212 is installed in the fixed box 211 through bearings.

[0034] The movable ratchet sleeve 215 includes a sleeve ring 216, a connecting rod 218 and a pull button 219. The sleeve ring 216 and the connecting rod 218 are fixedly connected to the two ends of the connecting rod 218 respectively. A ratchet 217 is fixedly connected to the inner circumference of the sleeve ring 216. The ratchet 217 is engaged with the one-way ratchet 214, and a sliding key 220 is fixedly connected to the outer circumference of the ratchet 217.

[0035] The safety sleeve 221 includes a sleeve tube 222 and a spring 225. The sleeve tube 222 is fixedly connected to the fixed box 211. A key slot 223 is provided inside the sleeve tube 222. The sliding key 220 is slidably connected in the key slot 223. One end of the sleeve tube 222 is fixedly connected to the bottom cover 224. The connecting rod 218 passes through and slides on the bottom cover 224. The spring 225 is sleeved on the connecting rod 218 and the two ends of the spring 225 act on the sleeve ring 216 and the bottom cover 224 respectively. The one-way ratchet 214 and the movable ratchet The sleeve 215 ensures that no accidental loosening occurs during the tightening process. The one-way ratchet 214 is fixed to one end of the main shaft 212, and the movable ratchet sleeve 215 cooperates with the keyway 223 in the safety sleeve 221 through the sliding key 220. The design of the spring 225 ensures that when release is not required, the one-way ratchet 214 remains engaged with the ratchet teeth 217 to prevent the main shaft 212 from reversing. When the strap 1 needs to be loosened, the button 219 is pulled to move the movable ratchet sleeve 215 along the keyway 223, thereby releasing the one-way lock.

[0036] The clamping structure 23 includes a clamping plate 231 and a bidirectional screw 234. The clamping plate 231 is fixedly connected to the fixed box 211. The clamping plate 231 is provided with anti-slip teeth 232. Threaded holes 233 are opened at both ends of the winding roller 213. Bidirectional screws 234 are installed in the threaded holes 233.

[0037] The bidirectional screw 234 includes a first threaded rod 235 and a second threaded rod 236. The first threaded rod 235 and the second threaded rod 236 are coaxial and fixedly connected. The threads of the first threaded rod 235 and the second threaded rod 236 are set in opposite directions. The two ends of the bidirectional screw 234 are fixedly connected with a turning handle 237. The first threaded rod 235 and the second threaded rod 236 have left-handed and right-handed threads respectively. When the turning handle 237 rotates, the two clamps 231 will move toward or away from the center at the same time, thereby clamping or releasing the strap 1. The bidirectional screw 234 is provided with a locking structure (not shown) to ensure that the bidirectional screw 234 will not loosen after being tightened.

[0038] The main shaft 212 is fixedly connected to a driven bevel gear 24 . The fixed box 211 is rotatably connected to a rotating rod 25 . Both ends of the rotating rod 25 are fixedly connected to a driving bevel gear 26 and a rotating disk 27 . The driving bevel gear 26 is meshed with the driven bevel gear 24 .

[0039] Working principle: Hold the strap 1 on the worker, and use the handle 237 to drive the bidirectional screw 234 to rotate so that the two clamping plates 231 approach each other to clamp one end of the strap 1, and then turn the turntable 27 to tighten the strap 1;

[0040] The turntable 27 drives the active bevel gear 26 to rotate, and drives the main shaft 212 to rotate under the meshing action of the active bevel gear 26 and the driven bevel gear 24, so that the other end of the strap 1 is wound on the winding roller 213, so that the strap 1 is tightened on the staff. When the main shaft 212 rotates, it drives the one-way ratchet 214 to rotate. When the winding roller 213 winds the strap 1, the one-way ratchet 214 can rotate in the movable ratchet sleeve 215. When the main shaft 212 moves in the opposite direction, the one-way ratchet 214 can rotate in the movable ratchet sleeve 215. When rotating in the reverse direction, due to the one-way locking effect of the ratchet 217 on the one-way ratchet 214, when the device needs to be loosened, the pull button 219 is pulled by hand to make the sleeve ring 216 move along the key slot 223, and then the one-way ratchet 214 is disengaged from the ratchet 217, and the main shaft 212 and the winding roller 213 can rotate in the reverse direction to loosen the strap 1. After releasing the pull button 219, the ratchet 217 is re-engaged with the one-way ratchet 214 under the elastic force of the spring 225.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A safety protection device for a tied arch work platform, characterized by: It comprises a binding belt (1), wherein the binding belt (1) is provided with a safety rope, and the safety rope is fixed to the binding belt (1) via a safety buckle; A fixing assembly (2), which is arranged at one end of the strap (1) and comprises: A tightening assembly (21), the tightening assembly (21) comprising a rotating main shaft (212) and a winding roller (213) fixed on the main shaft (212), the winding roller (213) being used to wind and tighten the binding belt (1); A clamping structure (23) configured to clamp and fix the other end of the binding belt (1); The clamping structure (23) is fixed on the tightening assembly (21).

2. The safety protection device for a tied arch work platform according to claim 1, characterized in that: The tightening assembly (21) further comprises a fixed box (211), a one-way ratchet (214), a movable ratchet sleeve (215) and a safety sleeve (221); the main shaft (212) is rotatably connected in the fixed box (211); the one-way ratchet (214) is fixedly connected to one end of the main shaft (212); the safety sleeve (221) is fixedly mounted on the fixed box (211); and the movable ratchet sleeve (215) slides in the main shaft (212).

3. The safety protection device for a tied arch work platform according to claim 2, characterized in that: The movable ratchet sleeve (215) comprises a sleeve ring (216), a connecting rod (218) and a pull button (219); the sleeve ring (216) and the connecting rod (218) are fixedly connected to the two ends of the connecting rod (218), respectively; a ratchet (217) is fixedly connected on the inner circumference of the sleeve ring (216); the ratchet (217) is meshed with the one-way ratchet (214); and a sliding key (220) is fixedly connected on the outer circumference of the ratchet (217).

4. The safety protection device for a tied arch work platform according to claim 3, characterized in that: The safety sleeve (221) comprises a sleeve tube (222) and a spring (225); the sleeve tube (222) is fixedly connected to the fixed box (211); a keyway (223) is provided inside the sleeve tube (222); the sliding key (220) is slidably connected in the keyway (223); one end of the sleeve tube (222) is fixedly connected to a bottom cover (224); the connecting rod (218) passes through and slides on the bottom cover (224); the spring (225) is sleeved on the connecting rod (218); and the two ends of the spring (225) act on the sleeve ring (216) and the bottom cover (224) respectively.

5. The safety protection device for a tied arch work platform according to claim 4, characterized in that: The clamping structure (23) includes a clamping plate (231) and a bidirectional screw (234). The clamping plate (231) is fixedly connected to the fixed box (211). The clamping plate (231) is provided with anti-slip teeth (232). The two ends of the winding roller (213) are provided with threaded holes (233), and the bidirectional screw (234) is installed in the threaded holes (233).

6. The safety protection device for a tied arch work platform according to claim 5, characterized in that: The bidirectional screw rod (234) comprises a first threaded rod (235) and a second threaded rod (236), wherein the first threaded rod (235) and the second threaded rod (236) are coaxial and fixedly connected, and the threads of the first threaded rod (235) and the second threaded rod (236) are arranged in opposite directions.

7. The safety protection device for a tied arch work platform according to claim 6, characterized in that: Both ends of the bidirectional screw (234) are fixedly connected to a rotating handle (237).

8. The safety protection device for a tied arch work platform according to claim 7, characterized in that: A driven bevel gear (24) is fixedly connected to the main shaft (212), a rotating rod (25) is rotatably connected to the fixed box (211), and two ends of the rotating rod (25) are respectively fixedly connected to a driving bevel gear (26) and a rotating disk (27), and the driving bevel gear (26) is meshed with the driven bevel gear (24).

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