Engineering safety protection net

Abstract

The utility model relates to a protective net, in particular to an engineering safety protective net which comprises a fixed lower frame and the like. A through hole is formed in the corner of the lower fixing frame, a nut is fixedly connected to the through hole of the lower fixing frame, the nut is in threaded connection with a bolt, the bolt is connected with an upper fixing frame and a pulley, the lower fixing frame is connected with the upper fixing frame through matching of the nut and the bolt, and the pulley is located between the lower fixing frame and the upper fixing frame and wound with a fixing rope. Net bodies are arranged at the ends, away from the pulleys, of the fixing ropes. When the tension of the net body of the device is attenuated, a worker can manually pull the handle to enable the pulley to rotate and contract the fixing rope, so that the tension of the net body is adjusted, the tension stability of the device is improved, and the service life of the device is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to a protection net, in particular to an engineering safety protection net. Background Art

[0002] Engineering protection net, also known as dense mesh safety net or green safety net, is a safety facility specially designed for construction sites, especially high-rise buildings. It is mainly made of high-strength materials such as polyester to form a mesh structure that can effectively prevent people and objects from falling and injuring. This kind of protection net is usually used in fully enclosed construction and is one of the indispensable safety measures in modern construction.

[0003] The protective nets in the prior art mostly adopt a fixed structure. The tension of the protective net lacks adjustment function and is difficult to adjust secondary. In actual applications, factors such as ambient temperature changes, material creep relaxation, and external impact loads will cause the tension of the net to continue to decay, and even cause local relaxation or stress concentration, which will greatly weaken the protective performance and shorten the service life, making it impossible to provide protection for construction operations.

[0004] Therefore, it is necessary to design a kind of engineering safety protection net. Utility Model Content

[0005] In order to overcome the shortcomings of traditional protective nets that mostly adopt a fixed structure, lack a tension adjustment function, and greatly shorten the service life of the device, the technical problem to be solved by the utility model is to provide an engineering safety protective net.

[0006] The technical scheme of the utility model is: an engineering safety protection net, comprising a fixed lower frame, a through hole is opened at the corner of the fixed lower frame, a nut is fixedly connected to the through hole of the fixed lower frame, a bolt is threadedly connected to the nut, a fixed upper frame and a pulley are connected to the bolt, the fixed lower frame is connected to the fixed upper frame through the cooperation of the nut and the bolt, the pulley is located between the fixed lower frame and the fixed upper frame, a fixed rope is wound around the pulley, a net body is arranged at the end of the fixed rope away from the pulley, the net body is located at the center of the fixed lower frame and the fixed upper frame, an arc-shaped limiting groove is opened at the fixed upper frame near the pulley, one end of the pulley is fixedly connected to a handle, and one end of the handle passes through the limiting groove.

[0007] Optionally, the bolt is threadedly connected to the fixed upper frame, and the bolt is rotationally connected to the pulley.

[0008] Optionally, a clamping block is fixedly connected to the bottom of the handle, and a plurality of clamping slots are evenly spaced apart on the fixed upper frame near the limit slot. The clamping block is designed in a hemispherical structure, and the clamping slots are curved grooves.

[0009] Optionally, a connecting piece is fixedly connected to the peripheral side wall of the fixed lower frame, and a connecting bolt is provided on the connecting piece.

[0010] Optionally, anti-skid washers are fixedly connected to both ends of the pulley, and the anti-skid washers at both ends are in contact with the fixed lower frame and the fixed upper frame respectively.

[0011] Optionally, a scale line is provided on the fixed upper frame near the limiting groove.

[0012] Optionally, one end of the fixing rope away from the pulley is fixedly connected to a spring, and one end of the spring away from the fixing rope is connected to the net body.

[0013] Compared with the prior art, the utility model has the following advantages: 1. When the net tension of the device decays, the worker can manually pull the handle to rotate the pulley to retract the fixing rope, thereby adjusting the tension of the net, which not only improves the tension stability of the device, but also effectively extends the service life of the device.

[0014] 2. The utility model realizes flexible connection between multiple devices by cooperating with the connecting parts and connecting bolts connected by fixing the lower frame, and can adjust the shape and layout of the protective device according to the actual needs of the engineering operation, which significantly improves the flexibility and adaptability of the device.

[0015] 3. When the net body is hit, the utility model can consume the force through the process of spring deformation and recovery to achieve a buffering effect, effectively prevent the fixing rope from breaking, and further extend the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the connecting piece and the connecting bolt of the utility model.

[0018] Figure 3 It is an exploded view of the pulley, handle and limit groove of the utility model.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the fixing rope and spring of the utility model.

[0020] Markings in the accompanying drawings: 1-fixed upper frame, 101-fixed lower frame, 2-net body, 3-connecting piece, 4-connecting bolt, 5-pulley, 6-handle, 601-limiting groove, 602-scale line, 603-card slot, 604-card block, 7-bolt, 701-nut, 702-anti-slip washer, 8-fixing rope, 9-spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment: A kind of engineering safety protection net, such as Figure 1-Figure 4 As shown, it includes a fixed lower frame 101, a through hole is opened at the corner of the fixed lower frame 101, a nut 701 is fixedly connected to the through hole of the fixed lower frame 101, the nut 701 is threadedly connected to the bolt 7, the bolt 7 is connected to the fixed upper frame 1 and the pulley 5, the fixed lower frame 101 is connected to the fixed upper frame 1 through the nut 701 and the bolt 7, the pulley 5 is located between the fixed lower frame 101 and the fixed upper frame 1, a fixed rope 8 is wound around the pulley 5, and the end of the fixed rope 8 away from the pulley 5 is provided with The net body 2 and the fixed upper frame 1 are provided with an arc-shaped limiting groove 601 near the pulley 5. One end of the pulley 5 is fixedly connected with a handle 6, and one end of the handle 6 passes through the limiting groove 601. Here, the bolt 7 is threadedly connected to the fixed upper frame 1, and the bolt 7 is rotatably connected to the pulley 5. By tightening the bolt 7, the fixed upper frame 1 and the fixed lower frame 101 can be kept in close contact. At the same time, the pulley 5 is rotated to rotate and retract the fixing rope 8. The fixing rope 8 drives the net body 2 to move toward the pulley 5 during the retraction process.

[0023] like Figure 3 As shown, a clamping block 604 is fixedly connected to the bottom of the handle 6, and a plurality of clamping grooves 603 are evenly spaced near the limiting groove 601 of the fixed upper frame 1. The clamping block 604 is designed in a hemispherical structure, and the clamping groove 603 is a curved groove. Here, when the handle 6 is pulled, the handle 6 applies a force to the connected clamping block 604, and the clamping block 604 withdraws from the clamping groove 603 after being subjected to the force, thereby releasing the fixing effect on the handle 6, so that the handle 6 drives the connected clamping block 604 to move. When the clamping block 604 moves to the next clamping groove 603, the clamping block 604 limits and fixes the handle 6 again, effectively preventing the handle 6 and the pulley 5 from rotating.

[0024] like Figure 2 As shown, the side walls of the fixed lower frame 101 are fixedly connected with connecting parts 3, and connecting bolts 4 are arranged on the connecting parts 3. Here, the design of the connecting parts 3 and connecting bolts 4 distributed circumferentially on the side walls of the fixed lower frame 101 can facilitate workers to connect multiple protective nets in series according to actual conditions, and can adjust the shape according to needs, thereby improving the flexibility and adaptability of the device.

[0025] like Figure 3-Figure 4As shown, both ends of the pulley 5 are fixedly connected with anti-skid washers 702, and the anti-skid washers 702 at both ends are in contact with the fixed lower frame 101 and the fixed upper frame 1 respectively. Here, the design of the anti-skid washers 702 increases the friction between the device and the fixed lower frame 101 and the fixed upper frame 1, preventing the pulley 5 from rotating due to external influences, thereby ensuring the stability of the device.

[0026] like Figure 3 As shown, a scale line 602 is provided near the limit groove 601 of the fixed upper frame 1. Here, the design of the scale line 602 can facilitate workers to clearly understand the tension state of the net body 2, so as to replace the net body 2 in time and ensure that the device provides a stable protective effect.

[0027] like Figure 4 As shown, one end of the fixing rope 8 away from the pulley 5 is fixedly connected to a spring 9, and one end of the spring 9 away from the fixing rope 8 is connected to the net body 2. Here, when the net body 2 is hit, the spring 9 is deformed after receiving the force transmitted by the net body 2. The spring 9 recovers through its own resilience during the deformation process, so that the spring 9 switches alternately between the deformation and recovery states, and consumes the force in this process, thereby achieving a buffering effect, preventing the fixing rope 8 from breaking, and extending the service life of the device.

[0028] The device is applied to the protection work of construction engineering. When in use, the connector 3 connected by the fixed lower frame 101 cooperates with the connecting bolt 4 to realize the connection between multiple devices, thereby meeting different protection requirements in engineering operations. The device is then set in the area that needs protection so that the device can play its protection function. When the tension of the net body 2 of the device decays, the handle 6 on the device can be manually pulled. The handle 6 rotates counterclockwise under the limiting and guiding action of the limiting groove 601. After the handle 6 is subjected to force, it drives the block 604 to exit the current slot 603 and move to the next slot 603. The handle 6 drives the fixed pulley 5 to rotate counterclockwise, so that the pulley 5 rotates and contracts the fixing rope 8. During the contraction process, the fixing rope 8 drives the net body 2 to move toward the pulley 5, so that the net body 2 is stretched around the device, thereby increasing the tension of the device and extending the service life of the device. Finally, the block 604 fixed to the handle 6 is moved into the corresponding slot 603, so that the block 604 limits the handle 6, thereby completing the fixing work of the pulley 5, and the work is completed.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An engineering safety protection net, comprising a fixed lower frame (101), characterized in that: A through hole is provided at a corner of the fixed lower frame (101), a nut (701) is fixedly connected to the through hole of the fixed lower frame (101), a bolt (7) is threadedly connected to the nut (701), a fixed upper frame (1) and a pulley (5) are connected to the bolt (7), the fixed lower frame (101) is connected to the fixed upper frame (1) by the nut (701) and the bolt (7), the pulley (5) is located between the fixed lower frame (101) and the fixed upper frame (1), a fixed rope (8) is wound around the pulley (5), a net body (2) is provided at one end of the fixed rope (8) away from the pulley (5), the net body (2) is located at the center of the fixed lower frame (101) and the fixed upper frame (1), an arc-shaped limiting groove (601) is provided near the pulley (5) on the fixed upper frame (1), one end of the pulley (5) is fixedly connected to a handle (6), and one end of the handle (6) passes through the limiting groove (601).

2. The engineering safety protection net according to claim 1, characterized in that: The bolt (7) is threadedly connected to the fixed upper frame (1), and the bolt (7) is rotationally connected to the pulley (5).

3. The engineering safety protection net according to claim 2 is characterized in that: A clamping block (604) is fixedly connected to the bottom of the handle (6), and a plurality of clamping grooves (603) are evenly spaced apart near the limiting groove (601) on the fixed upper frame (1). The clamping block (604) is designed in a hemispherical structure, and the clamping grooves (603) are curved grooves.

4. The engineering safety protection net according to claim 3 is characterized in that: A connecting piece (3) is fixedly connected to the peripheral side wall of the fixed lower frame (101), and a connecting bolt (4) is provided on the connecting piece (3).

5. The engineering safety protection net according to claim 4, characterized in that: Anti-skid washers (702) are fixedly connected to both ends of the pulley (5), and the anti-skid washers (702) at both ends are in contact with the fixed lower frame (101) and the fixed upper frame (1) respectively.

6. The engineering safety protection net according to claim 5, characterized in that: A scale line (602) is provided on the fixed upper frame (1) near the limiting groove (601).

7. The engineering safety protection net according to claim 6, characterized in that: One end of the fixing rope (8) away from the pulley (5) is fixedly connected to a spring (9), and one end of the spring (9) away from the fixing rope (8) is connected to the net body (2).

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