A type of easy-to-disassemble and install safety net

Abstract

This utility model discloses an easily detachable and installable safety net, including a net body and connecting components at its top and bottom. The components include a connecting plate with a vertical plate that extends through the net body via bolts; hollow frames and connecting frames extend from both ends of the connecting plate, with channels for high-strength polyester webbing to pass through. A rotating shaft is installed inside the connecting frame, with a positioning post surrounding the center of the shaft and ratchet wheels fixed to both sides. The ratchet wheels engage with an arc-shaped locking strip pressed by a spring in a recessed groove. The arc-shaped locking strip is connected to a synchronous pressing strip via a connecting strip. During installation, the high-strength polyester webbing is wrapped around the scaffold, and the end hole is inserted into the positioning post. Rotating the rotating shaft then tightens and locks the high-strength polyester webbing. During disassembly, pressing the synchronous pressing strip releases the ratchet engagement, thus releasing the high-strength polyester webbing. This design prevents loosening through the rigid engagement of the ratchet and the arc-shaped locking strip, ensuring safety; the synchronous pressing strip allows for quick unlocking, significantly improving the efficiency of high-altitude disassembly.

Description

Technical Field

[0001] This utility model relates to the field of safety netting technology, specifically a safety netting that is easy to disassemble and install. Background Technology

[0002] Safety netting installed on the outside of construction scaffolding is a key protective facility to prevent falls from heights and ensure the safety of construction workers. Currently, safety netting is generally fixed to the scaffolding using methods such as wrapping and knotting, using wire, nylon rope, or special binding straps.

[0003] Publication No. CN215331636U discloses a close-mesh safety net for construction, comprising a safety net with fixing heads installed on all four sides of the net body. A first binding strap and a second binding strap are fixedly installed on the top wall of each fixing head. An installation head is fixedly connected to the top of the first binding strap. An installation groove is formed within the plate of the installation head, and the installation groove extends transversely through the plate of the installation head. This invention uses clamps and bolts to fix the safety net, facilitating disassembly. The first and second binding straps, along with the lever and pressure plate, automatically rebound, completing the laying of the safety net on the scaffold. During the laying process, the safety net can be moved according to the binding length of the second binding strap, facilitating temporary changes in the laying. It eliminates the need for wire wrapping and binding, and facilitates installation and disassembly, avoiding damage to the safety net caused by wire during laying. However, this patent still has the following problems in actual use:

[0004] Since the safety net serves a protective function, when a person leans against the net, the net needs to support them to prevent them from falling. However, in the above-mentioned device, the straps are fixed only by the pressure plate that applies force through the torsion spring. Since the elasticity of the torsion spring is limited, when the straps are suddenly subjected to a large force, they will slip against the pressure plate, affecting the stability of the net installation point and thus affecting the protective function.

[0005] A safety net that is easy to disassemble and install is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a safety net that is easy to disassemble and install, in order to solve the problem mentioned in the background art that, since the safety net plays a protective role, when a person leans against the net, the net needs to support them to prevent them from falling. However, in the above-mentioned devices, the binding straps are fixed by the pressure plate that applies force through the torsion spring. Since the elasticity of the torsion spring is limited, when the binding straps are suddenly subjected to a large force, they will slip against the pressure plate, affecting the stability of the net installation point and thus affecting the protective function.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a safety net that is easy to disassemble and install, comprising a net body;

[0008] The top and bottom of the net body are provided with connecting components. The connecting components include connecting plates. A pair of vertical plates are fixedly connected to the bottom of the connecting plates. A bolt is threadedly connected to the middle of the vertical plates. The bolt moves through the net body.

[0009] The connecting plate has a hollow frame and a connecting frame fixedly connected to its two ends, and a high-strength polyester webbing is inserted into the middle of both the hollow frame and the connecting frame.

[0010] The hollow frame has a fixed plate slidably installed inside, and a positioning cone is fixedly connected to the surface of the fixed plate. The connecting frame has a cavity in the middle, and wheel cavities are opened inside both sides of the connecting frame. A rotating shaft is horizontally rotatably installed in the middle of the connecting frame. A positioning post is fixedly installed around the middle of the rotating shaft. Ratchets are symmetrically fixedly connected to both sides of the rotating shaft. A clearance groove is symmetrically opened on the outer side of the connecting frame, and an arc-shaped locking strip is rotatably connected inside the clearance groove.

[0011] Preferably, one end of the arc-shaped locking bar is engaged with a ratchet, the other end of the arc-shaped locking bar is fixedly connected to a connecting bar, a synchronization bar is fixedly connected between the two connecting bars, and springs are symmetrically fixedly connected to the surface of the synchronization bar.

[0012] Preferably, the high-strength polyester webbing has several holes, and the positioning post is inserted into the holes.

[0013] Preferably, the hollow frame is threaded with a stud, the stud is horizontally positioned, the stud extends into the hollow frame and is rotatably connected to the fixing plate, and the positioning cone is embedded in one end of the high-strength polyester webbing.

[0014] Preferably, the bottom of the arc-shaped card strip is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to the inner wall of the clearance groove, and the clearance groove is in communication with the wheel cavity.

[0015] Preferably, the top end of the spring is fixedly connected to the outside of the connecting frame, and a torsion handle is fixedly connected to one end of the rotating shaft that extends out of the connecting frame.

[0016] Preferably, an arc-shaped support plate is fixedly connected to the upper surface of the connecting plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are: this easy-to-disassemble and install safety net achieves one-way locking of the rotating shaft through ratchet and arc-shaped locking strip, improving installation stability. Furthermore, the linkage between the synchronization bar and spring, along with the detachable design of the high-strength polyester webbing, optimizes disassembly convenience and extends service life, combining reliability and economic practicality. The specific details are as follows:

[0018] 1. The ratchet and arc-shaped locking strip design achieves a one-way rotation locking function for the rotating shaft. During installation, when the rotating shaft drives the positioning pin into the hole of the high-strength polyester webbing, the ratchet rotates synchronously with the rotating shaft. The arc-shaped locking strip, pushed by the spring, is always engaged in the groove of the ratchet. Since the force exerted by the ratchet on the arc-shaped locking strip is perpendicular to its rotating shaft, when the ratchet rotates in the opposite direction, the arc-shaped locking strip will naturally resist the ratchet, thereby preventing the rotating shaft from rotating back. This ensures that the high-strength polyester webbing will not loosen after tightening, significantly improving the stability and reliability of the installation. It is especially suitable for safety protection scenarios in high-altitude operations where sudden external forces may occur.

[0019] 2. One end of the high-strength polyester webbing is detachably fixed using positioning cones and studs, allowing for quick replacement when it ages, avoiding the costly waste of replacing the entire unit. This design reduces operational difficulty and extends the equipment's lifespan, demonstrating significant economic efficiency and practicality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the installation structure of the connecting plate, vertical plate, and hollow frame;

[0022] Figure 3 This is a schematic diagram of the installation structure of the hollow frame;

[0023] Figure 4 This is a schematic diagram of the internal structure of the connecting frame;

[0024] Figure 5 This is a schematic diagram of the installation structure of the torsion handle and the rotating shaft.

[0025] In the diagram: 1. Mesh body; 2. Connecting assembly; 201. Connecting plate; 2011. Arc-shaped support plate; 202. Vertical plate; 203. Bolt; 204. Hollow frame; 2041. Stud; 2042. Fixing plate; 2053. Positioning cone; 205. Connecting frame; 2051. Wheel cavity; 2052. Belt cavity; 2053. Alternating groove; 206. High-strength polyester webbing; 207. Rotary shaft; 208. Positioning post; 209. Ratchet; 210. Torque handle; 211. Arc-shaped retaining strip; 212. Connecting strip; 213. Synchronizing strip; 214. Spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 The present invention provides a technical solution: a safety net that is easy to disassemble and install, comprising a net body 1;

[0028] The top and bottom of the net body 1 are provided with a connecting component 2. The connecting component 2 includes a connecting plate 201. A pair of vertical plates 202 are fixedly connected to the bottom of the connecting plate 201. A bolt 203 is threadedly connected to the middle of the vertical plate 202. The bolt 203 moves through the net body 1.

[0029] Among them, hollow frame 204 and connecting frame 205 are fixedly connected to both ends of connecting plate 201, and a channel for high-strength polyester webbing 206 to pass through is provided in the middle of hollow frame 204 and connecting frame 205.

[0030] The hollow frame 204 has a fixed plate 2042 slidably installed inside, and a positioning cone 2043 is fixedly connected to the surface of the fixed plate 2042. The middle of the connecting frame 205 has a cavity 2052, and wheel cavities 2051 are opened inside both sides of the connecting frame 205. A rotating shaft 207 is horizontally rotatably installed in the middle of the connecting frame 205. A positioning post 208 is fixedly installed around the middle of the rotating shaft 207. Ratchets 209 are symmetrically fixedly connected to both sides of the rotating shaft 207. A clearance groove 2053 is symmetrically opened on the outer side of the connecting frame 205. An arc-shaped locking strip 211 is rotatably connected inside the clearance groove 2053.

[0031] The high-strength polyester webbing 206 is wrapped around the top of the scaffolding. Then, the hole 2061 at one end of the high-strength polyester webbing 206 is inserted into the positioning post 208 in the wheel cavity 2051. Then, the rotating shaft 207 is turned so that the rotating shaft 207 drives the positioning post 208 to rotate. At this time, the high-strength polyester webbing 206 is wrapped around the outside of the rotating shaft 207. At the same time, the positioning post 208 is inserted into the subsequent hole 2061. As the high-strength polyester webbing 206 tightens, the high-strength polyester webbing 206 presses against the scaffolding and fits against the curved support plate 2011, achieving rapid fixation.

[0032] One end of the arc-shaped locking strip 211 is engaged with the ratchet 209, and the other end of the arc-shaped locking strip 211 is fixedly connected to a connecting strip 212. A synchronization strip 213 is fixedly connected between the two connecting strips 212. A spring 214 is symmetrically fixedly connected to the surface of the synchronization strip 213. The synchronization strip 213 can easily press the two connecting strips 212 at the same time. The push of the spring 214 makes the arc-shaped locking strip 211 always engaged with the ratchet 209. The direction of the force applied by the ratchet 209 to the arc-shaped locking strip 211 is perpendicular to the rotation axis of the arc-shaped locking strip 211. The arc-shaped locking strip 211 is engaged in the groove of the ratchet 209, so that when the ratchet 209 rotates in the opposite direction, the arc-shaped locking strip 211 will naturally resist the ratchet 209, realizing its unidirectional rotation.

[0033] The high-strength polyester webbing 206 has several holes 2061, and the positioning post 208 is inserted into the holes 2061. The width of the hole 2061 is greater than the width of the positioning post 208. The length of the positioning post 208 can be inserted into the hole 2061, or it can automatically detach from the hole 2061 under the pulling of the high-strength polyester webbing 206.

[0034] A stud 2041 is threaded onto the outer side of the hollow frame 204. The stud 2041 is horizontally positioned and extends into the hollow frame 204, where it is rotatably connected to the fixing plate 2042. A positioning cone 2043 is embedded in one end of the high-strength polyester webbing 206. When the high-strength polyester webbing 206 ages, rotating the stud 2041 causes the fixing plate 2042 to pull the positioning cone 2043 out of the high-strength polyester webbing 206, allowing the high-strength polyester webbing 206 to be replaced. In use, the fixing plate 2042 pushes the high-strength polyester webbing 206 against the inner wall of the hollow frame 204, and with the help of the positioning cone 2043, one end of the high-strength polyester webbing 206 is stably fixed.

[0035] The bottom of the arc-shaped retaining strip 211 is fixedly connected to a rotating shaft, which is rotatably connected to the inner wall of the clearance groove 2053. The clearance groove 2053 is connected to the wheel cavity 2051. The rotating shaft provides support for the arc-shaped retaining strip 211, enabling it to rotate stably within the clearance groove 2053.

[0036] The top of the spring 214 is fixedly connected to the outside of the connecting frame 205, and the end of the rotating shaft 207 extending out of the connecting frame 205 is fixedly connected to the handle 210; the push of the spring 214 makes the arc-shaped locking strip 211 always locked into the ratchet 209, and the handle 210 provides convenience for hand operation and makes it easy to turn the rotating shaft 207.

[0037] An arc-shaped support plate 2011 is fixedly connected to the upper surface of the connecting plate 201; the arc-shaped support plate 2011 provides support for the round poles of the scaffold, increases the contact area, and thus increases the connection stability.

[0038] Working principle: Before using this type of easily detachable and installable safety net, it is necessary to check the overall condition of the device to ensure it can function properly. Figure 1 - Figure 5 As shown, during the initial installation, after wrapping the high-strength polyester webbing 206 around the scaffold, insert the hole 2061 at one end into the positioning post 208, twist the rotating shaft 207 to make the high-strength polyester webbing 206 wrap and tighten, insert the positioning post 208 into the subsequent hole 2061, and at the same time, the high-strength polyester webbing 206 presses the scaffold against the curved support plate 2011 to complete the fixation;

[0039] During disassembly, press the timing bar 213 to disengage the arc-shaped locking bar 211 from the ratchet 209, thereby releasing the one-way lock. Pulling the high-strength polyester webbing 206 will allow the rotating shaft 207 to rotate freely and release the high-strength polyester webbing 206.

[0040] In addition, one end of the high-strength polyester webbing 206 is fixed to the hollow frame 204 by a positioning cone 2043 and a fixing plate 2042. When aging occurs, the positioning cone 2043 can be removed by rotating the stud 2041 and replaced to ensure long-term stability.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A safety net that is easy to disassemble and install, comprising a net body (1); characterized in that Also includes: The top and bottom of the net body (1) are provided with a connecting component (2), the connecting component (2) includes a connecting plate (201), a pair of vertical plates (202) are fixedly connected to the bottom of the connecting plate (201), and a bolt (203) is threadedly connected to the middle of the vertical plate (202), the bolt (203) movably passes through the net body (1); The connecting plate (201) is fixedly connected to a hollow frame (204) and a connecting frame (205) at both ends, and a high-strength polyester webbing (206) is inserted into the middle of both the hollow frame (204) and the connecting frame (205). The hollow frame (204) has a fixed plate (2042) slidably installed inside, and a positioning cone (2043) is fixedly connected to the surface of the fixed plate (2042). The connecting frame (205) has a cavity (2052) in the middle, and wheel cavities (2051) are opened inside both sides of the connecting frame (205). A rotating shaft (207) is horizontally rotatably installed in the middle of the connecting frame (205). A positioning post (208) is fixedly installed around the middle of the rotating shaft (207). Ratchets (209) are symmetrically fixedly connected to both sides of the rotating shaft (207). A clearance groove (2053) is symmetrically opened on the outer side of the connecting frame (205). An arc-shaped locking strip (211) is rotatably connected inside the clearance groove (2053).

2. A safety net according to claim 1, characterised in that: One end of the arc-shaped locking bar (211) is engaged with the ratchet (209), and the other end of the arc-shaped locking bar (211) is fixedly connected to a connecting bar (212). A synchronization bar (213) is fixedly connected between the two connecting bars (212), and a spring (214) is symmetrically fixedly connected to the surface of the synchronization bar (213).

3. A safety net according to claim 1, wherein: The high-strength polyester webbing (206) has several holes (2061) and the positioning post (208) is inserted into the holes (2061).

4. A safety net according to claim 1, wherein: The hollow frame (204) is threaded with a stud (2041) on the outside. The stud (2041) is horizontally positioned and extends into the hollow frame (204) and is rotatably connected to the fixing plate (2042). The positioning cone (2043) is embedded in one end of the high-strength polyester webbing (206).

5. A safety net according to claim 1, wherein: The bottom of the arc-shaped card strip (211) is fixedly connected to a rotating shaft, which is rotatably connected to the inner wall of the clearance groove (2053), and the clearance groove (2053) is connected to the wheel cavity (2051).

6. A safety net according to claim 2, wherein: The top end of the spring (214) is fixedly connected to the outside of the connecting frame (205), and the end of the rotating shaft (207) extending out of the connecting frame (205) is fixedly connected to a torsion handle (210).

7. A safety net according to claim 1, wherein: An arc-shaped support plate (2011) is fixedly connected to the upper surface of the connecting plate (201).

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