A safety net for preventing falling in construction

Abstract

This utility model belongs to the field of construction fall protection net technology, and in particular, it is a fall protection safety net for construction. It includes an installation plate, with support frames supported at both ends by diagonal braces. A sliding rod is installed on the support frame, and a protective net pad is slidably mounted on the sliding rod via a sliding sleeve. A hydraulic damping arm is provided on the support frame, connected to the bottom of both ends of the protective net pad. A net winding mechanism is installed at the top of the sliding rod via an installation frame, and the fall protection net is wound around the winding mechanism. When the fall protection net of this utility model is subjected to a downward impact force, it is pulled onto the winding drum and unrolls. After the fall force is reduced, the fall protection net falls onto the protective net pad. The protective net pad, driven by the frame, continues to fall due to friction against the sliding rod via the sliding sleeve. Simultaneously, the bottom is supported by the resistance of the hydraulic damping arms, which further reduces the fall force, providing multi-stage buffering and reducing the risk of injury or death.

Description

Technical Field

[0001] This utility model belongs to the field of construction fall protection net technology, specifically relating to a fall protection safety net for construction. Background Technology

[0002] A search revealed a Chinese patent publication number CN214462801U that discloses a device for preventing falling objects from building exterior walls. The device involves installing a safety net on a triangular bracket. By utilizing the high frictional properties of the springs and dovetail rails between the triangular bracket and the mounting frame, a portion of the shearing force generated by falling objects can be offset. The counterweight, attracted by the magnetic ring and acted upon by the spring, provides a certain degree of cushioning for the safety net.

[0003] The aforementioned anti-fall device can cushion falling objects to a certain extent during use. However, it uses magnetic rings and springs as cushioning components. When construction workers accidentally fall into the safety net, the rebound of the cushioning components may cause the person to bounce up, resulting in the person falling out of the safety net or colliding with the outer wall.

[0004] Therefore, it is necessary to develop a fall protection safety net for construction work, which can cushion falling personnel and prevent them from bouncing back. Utility Model Content

[0005] To address the problems mentioned in the background section, this utility model provides a fall protection safety net for construction. When subjected to a downward impact force, the net is pulled up onto a winding drum. After the falling force is reduced, the net falls onto a protective net mat. The mat, through a frame, causes a sliding sleeve to rub against a sliding rod, continuing its descent. Simultaneously, the bottom is supported by a hydraulic damping arm, further reducing the falling force and providing multi-stage buffering to minimize casualties.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a safety net for preventing falls during construction, comprising an installation plate, with support frames supported at both ends of the installation plate by diagonal bracing plates, a sliding rod installed on the support frame, and a protective net pad slidably mounted on the sliding rod via a sliding sleeve; a hydraulic damping arm connected to the bottom of both ends of the protective net pad is provided on the support frame; a net winding mechanism is installed at the top of the sliding rod via an installation frame, and a fall prevention net is wound on the net winding mechanism.

[0007] As a preferred embodiment, the winding mechanism includes a winding drum mounted on a mounting frame, and a motor connected to the winding drum is mounted on the mounting frame; the two ends of the fall protection net are wound and fixed on the winding drum; the fall protection net is set in a horizontal state after being wound up by the winding drum driven by the motor; a buffer pad is installed on the mounting plate above the winding drum.

[0008] As a preferred embodiment, an inclined protective plate is integrally formed on the outer end of the protective net mat; a frame is provided around the outer perimeter of the protective net mat, and sliding holes are opened on the frame. The bottom of the frame slides on the sliding rod through a sliding sleeve below the sliding holes. A protective pad is provided in the middle of the protective net mat, and a protective net is provided at the connection between the frame and the protective pad support.

[0009] As a preferred embodiment, the fall protection net is positioned directly above the protective net mat.

[0010] As a preferred embodiment, the mounting plate has multiple mounting holes and is fixed to the exterior wall of the building by tightening bolts.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1) When the fall protection net of this utility model is subjected to a downward impact force, the fall protection net wound on the winding drum at both ends is pulled open. After the fall protection net reduces the downward force, it falls onto the protective net pad below. The protective net pad is driven by the frame to drive the sliding sleeve to continue falling on the sliding rod. At the same time, the bottom is supported by the resistance of the hydraulic damping arm to reduce the downward force a second time. It can buffer the downward force of a person falling into the fall protection net in multiple stages, reduce the casualties; and avoid the situation where the falling person bounces up in the fall protection net due to the use of the rebound component.

[0013] 2) Inclined protective plates are installed on the sides of the protective net mat to prevent falling personnel from falling out of the net and causing injury, thereby avoiding secondary injuries to falling personnel. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a front view structural diagram of the present utility model;

[0016] Figure 3 This is a schematic diagram of the connection between the protective net mat and the mounting frame in this utility model;

[0017] Figure 4 This is a schematic diagram of the connection between the fall prevention net and the winding net mechanism in this utility model.

[0018] Explanation of icon numbers:

[0019] 1. Mounting plate; 11. Support frame; 12. Diagonal brace plate; 13. Mounting hole; 2. Sliding rod; 3. Protective net pad plate; 31. Inclined protective plate; 32. Sliding sleeve; 33. Frame; 34. Protective net; 35. Protective pad; 36. Sliding hole; 4. Net winding mechanism; 41. Winding drum; 42. Motor; 5. Fall protection net; 6. Buffer pad; 7. Hydraulic damping arm. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] Please see Figures 1-4 This utility model provides the following technical solution: a safety net for construction safety, including an installation plate 1, with a support frame 11 supported at both ends of the installation plate 1 by a diagonal brace 12. A sliding rod 2 is installed on the support frame 11, and a protective net pad 3 is slidably mounted on the sliding rod 2 by a sliding sleeve 32. The support frame 11 is provided with a hydraulic damping arm 7 connected to the bottom of both ends of the protective net pad 3. The protective net pad 3 continues to fall on the sliding rod 2 through the frame 33, while the bottom is supported by the resistance of the hydraulic damping arm 7 to reduce the falling force for the second time. This can buffer the falling force of personnel falling from the safety net in multiple stages and reduce casualties. A net winding mechanism 4 is installed at the top of the sliding rod 2 through an installation frame, and a safety net 5 is wound on the net winding mechanism 4. When the safety net 5 is subjected to a downward impact force, its two ends pull the safety net 5 wound on the winding drum 41 to unfold, intercept and catch the falling personnel, and the safety net 5 falls onto the protective net pad 3 below after the falling force is reduced.

[0022] Specifically, the winding net mechanism 4 includes a winding drum 41 mounted on a mounting frame, and a motor 42 connected to the winding drum 41 is mounted on the mounting frame. The two ends of the fall arrest net 5 are wound and fixed on the winding drum 41. After the fall arrest net 5 is wound up by the winding drum 41 driven by the motor 42, it is set in a horizontal state. A buffer pad 6 is installed on the mounting plate 1 above the winding drum 41. The control motor 42 drives the winding drum 41 to simultaneously wind up both ends of the fall arrest net 5 so that the fall arrest net 5 is in a horizontal state. When the fall arrest net 5 is subjected to a downward impact force, its two ends pull the fall arrest net 5 wound on the winding drum 41 to unfold, intercepting and catching the falling person.

[0023] Specifically, an inclined protective plate 31 is integrally formed on the outer end of the protective net mat 3 to prevent falling personnel from falling out of the fall net 5 and causing injury, thereby avoiding secondary injury to the falling personnel; a frame 33 is provided around the outer perimeter of the protective net mat 3, and sliding holes 36 are opened on the frame 33. The bottom of the frame 33 slides on the sliding rod 2 through the sliding sleeve 32 below the sliding holes 36. A protective pad 35 is provided in the middle of the protective net mat 3, and a protective net 34 is provided at the connection between the frame 33 and the protective pad 35. After the fall net 5 reduces the downward force, it falls onto the protective net pad 3 below. This causes the protective net pad 3 to continue falling on the sliding rod 2 via the frame 33 and the sliding sleeve 32. At the same time, the bottom of both ends of the frame 33 is supported by the resistance of the hydraulic damping arms 7. At this time, the downward force is reduced a second time under the action of the protective net pad 3 and the hydraulic damping arms 7. This can buffer the downward force of a person falling into the fall net in multiple stages, reducing casualties. It also prevents the falling person from bouncing up in the fall net due to the use of the rebound component.

[0024] Specifically, there is friction between the slide rod 2 and the slide sleeve 32.

[0025] Specifically, the fall protection net 5 is positioned directly above the protective net mat 3.

[0026] Specifically, the mounting plate 1 has multiple mounting holes 13 and is fixed to the exterior wall of the building by tightening bolts.

[0027] In addition, a power supply box for supplying power to the motor 42 is installed at the bottom of the mounting plate 1. The motor 42 is connected to an external handheld remote control through a signal transceiver controller.

[0028] The working principle and usage process of this utility model are as follows: The operator fixes the mounting plate 1 to the building exterior wall through the mounting hole 13 with the tension bolts, controls the motor 42 to drive the winding drum 41 to simultaneously wind up both ends of the fall protection net 5 so that the fall protection net 5 is in a horizontal state, and uses the hydraulic damping arm 7 to adjust the support protective net pad 3 to be in the position directly below the fall protection net 5. When a construction worker accidentally falls onto the fall arrest net 5, the fall arrest net 5 is subjected to a downward impact force. The fall arrest net 5, which is wound on the winding drum 41 at both ends, unfolds and intercepts and catches the falling worker. After the fall arrest net 5 reduces the downward force, it falls onto the protective net pad 3 below. The protective net pad 3 then drives the sliding sleeve 32 through the frame 33 to continue falling on the sliding rod 2 with friction force. At the same time, the bottom of both ends of the frame 33 is supported by the resistance of the hydraulic damping arm 7. At this time, under the action of the protective net pad 3 and the hydraulic damping arm 7, the downward force is reduced a second time. The downward force of the worker falling into the fall arrest net can be buffered in multiple stages to reduce casualties. It also prevents the falling worker from being bounced up in the fall arrest net due to the use of the rebound component. An inclined protective plate 31 is installed on the side of the protective net pad 3 to prevent the falling worker from falling out of the fall arrest net 5 and causing injury, thereby avoiding secondary injury to the falling worker.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A safety net for preventing falls during construction, comprising an installation plate (1), wherein support frames (11) are provided on both ends of the installation plate (1) by means of diagonal bracing plates (12), characterized in that: The support frame (11) is equipped with a slide rod (2), and a protective net pad (3) is slidably mounted on the slide rod (2) via a sliding sleeve (32); the support frame (11) is equipped with a hydraulic damping arm (7) connected to the bottom of both ends of the protective net pad (3); a net winding mechanism (4) is mounted on the top of the slide rod (2) via a mounting frame, and a fall prevention net (5) is wound on the net winding mechanism (4).

2. The construction safety net according to claim 1, characterized in that: The winding net mechanism (4) includes a winding drum (41) mounted on a mounting frame, and a motor (42) connected to the winding drum (41) is mounted on the mounting frame; the two ends of the fall protection net (5) are wound and fixed on the winding drum (41); the fall protection net (5) is set in a horizontal state after being wound by the winding drum (41) driven by the motor (42); a buffer pad (6) is installed on the mounting plate (1) above the winding drum (41).

3. The construction safety net according to claim 1, characterized in that: An inclined protective plate (31) is integrally formed on the outer end of the protective net mat (3); a frame (33) is provided around the outer perimeter of the protective net mat (3), and a sliding hole (36) is provided on the frame (33). The bottom of the frame (33) slides on the sliding rod (2) through the sliding sleeve (32) below the sliding hole (36). A protective pad (35) is provided in the middle of the protective net mat (3), and a protective net (34) is provided at the support of the frame (33) and the protective pad (35).

4. The construction safety net according to claim 1, characterized in that: The fall protection net (5) is positioned directly above the protective net mat (3).

5. The construction safety net according to claim 1, characterized in that: The mounting plate (1) has multiple mounting holes (13) and is fixed to the exterior wall of the building by tightening bolts.

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