Protective safety net
By introducing a movable snap-fit plate and a locking bolt design into the connecting frame of the safety net, the problems of unstable connection and troublesome installation when the safety net is used over a large area are solved, achieving a convenient and highly stable connection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANCHENG BOLEGE ROPE NET CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-06-16
AI Technical Summary
When existing safety nets are used on a large scale, the connections are unstable and the installation is troublesome. The existing technology of connecting by wrapping and knotting iron wire or nylon rope is not stable or convenient enough.
The design incorporates movable snap-fit plates and clamping bolts within the connecting frame. Stable connections between frames are achieved through dovetail snap-fit plates and threaded connections, while sealing covers and snap-fit blocks enhance installation efficiency and stability.
This technology enables convenient connection of protective safety nets and improves the stability of the connection, reduces the risk of bolt rusting and loosening, and improves installation efficiency.
Smart Images

Figure CN224361330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protective safety net technology, specifically a protective safety net. Background Technology
[0002] Safety nets are generally used for safety protection, such as on ships. They prevent cargo from falling during hoisting and also improve the safety of personnel on board.
[0003] To improve the ease of use of safety nets, existing technologies have made numerous improvements. For example, patent publication number CN220058969U discloses a movable safety net frame, including four vertical poles arranged in a quadrilateral shape. Diagonal braces and horizontal bars are fixed between adjacent vertical poles. Multiple sliding sleeves are provided on the vertical poles, with springs at both ends of the sleeves. A multi-layered safety net is also included, with its four corners fixed to the sliding sleeves on the vertical poles. The four corners of the safety net slide against the vertical poles via the sliding sleeves, and the springs provide cushioning. The entire frame is composed of vertical poles, horizontal bars, and diagonal braces, resulting in a more stable and reliable structure. It can be moved and adjusted via casters and fixed with anchor bolts, making operation simple and convenient.
[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:
[0005] The aforementioned comparative documents describe safety nets mounted on several vertical poles, which can be moved using casters. However, in reality, large-area protection may be required, while the area of a single safety net is limited. Therefore, it is necessary to connect several safety nets together. In existing technologies, when connecting several safety nets, adjacent safety nets are usually wrapped and knotted with wire or nylon rope. This method is cumbersome and unstable. Therefore, there is an urgent need in the field to improve safety nets to overcome the shortcomings of existing technologies. Utility Model Content
[0006] In view of the shortcomings of the existing technology, this utility model provides a protective safety net that facilitates the connection and installation of two connecting frames and improves the stability of the two connecting frames after connection.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a protective safety net, including a connecting frame, a protective net sheet for protection inside the connecting frame, a plurality of movable snap-fit plates between the sides of two adjacent connecting frames, both ends of the movable snap-fit plates being symmetrically dovetail-shaped, a plurality of rectangular placement grooves adapted to the movable snap-fit plates being opened on the side of the connecting frame, a positioning connection groove adapted to the movable snap-fit plates being provided at the bottom of the placement groove, and a tightening bolt with one end tightly abutting against the side of the movable snap-fit plate being threaded through one side of the connecting frame.
[0008] Preferably, a number of threaded holes communicating with the placement groove are provided on one side of the connecting frame, through which the tightening bolts pass and are threadedly connected to the threaded holes.
[0009] Preferably, a number of opening slots are provided on one side of the connecting frame, and a semi-circular threaded ring is provided at the bottom of the opening slot. A threaded hole is opened inside the threaded ring, and a locking nut is threadedly connected between two threaded rings.
[0010] Preferably, a sealing cover plate for sealing the opening slot is threadedly connected at the opening slot position, and the inner sidewall of the sealing cover plate abuts against the end of the tightening bolt.
[0011] Preferably, the connecting frame has several connecting holes on multiple sides, and both ends of the connecting holes penetrate the side of the connecting frame.
[0012] Preferably, a suitable positioning plug is inserted between the ends of two adjacent connection holes.
[0013] Preferably, the sealing cover plate has a snap-fit block on the side away from the tightening bolt, and the snap-fit block is polygonal.
[0014] To address the shortcomings of existing technologies, this utility model provides a protective safety net that overcomes these deficiencies. The beneficial effects of this utility model are as follows:
[0015] In this utility model, the movable snap-fit plate is snapped between two positioning connection slots, and both ends of the movable snap-fit plate are dovetail-shaped. The locking bolts tighten the movable snap-fit plate into the two positioning connection slots, thereby connecting and fixing the two adjacent connecting frames. This facilitates the connection and installation of the two connecting frames and improves the stability of the two connecting frames after connection.
[0016] In this invention, by aligning the side positions of the two connecting frames and matching the threads of the two adjacent threaded rings, the locking nut is threaded onto the side of the two threaded rings and tightened. This not only improves the accuracy of the alignment between the two adjacent connecting frames, but also enhances the stability of the two connecting frames after connection.
[0017] In this invention, the sealing cover plate can seal the opening groove, reducing the possibility of rust on the tightening bolts. The top of the sealing cover plate is tightly against one end of the tightening bolt, preventing the tightening bolt from loosening. The sealing cover plate can be tightened or loosened by the snap-fit block, improving the efficiency of installing the overall device.
[0018] In this invention, the connecting frame and the protective frame are connected through connecting holes, and the positioning plugs are inserted into the corresponding connecting holes, thereby improving the stability of the connection and installation of several connecting frames.
[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description
[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0021] Figure 1 This is a schematic diagram of the structure of the two connecting frames of this utility model after they are connected;
[0022] Figure 2 This is a partial structural diagram of the connecting frame in this utility model;
[0023] Figure 3 This is a partial cross-sectional structural diagram of the connecting frame in this utility model;
[0024] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle.
[0025] In the diagram: 1. Connecting frame; 2. Protective mesh; 3. Movable snap-fit plate; 4. Placement slot; 5. Positioning connection slot; 6. Tightening bolt; 7. Threaded hole; 8. Opening slot; 9. Threaded ring; 10. Locking nut; 11. Sealing cover plate; 12. Connecting hole; 13. Positioning insertion post; 14. Snap-fit block. 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 1-4 A protective safety net includes a connecting frame 1, a protective mesh 2 for protection inside the connecting frame 1, a plurality of movable snap-fit plates 3 between the sides of two adjacent connecting frames 1, the two ends of the movable snap-fit plates 3 being symmetrical dovetail shapes, a plurality of rectangular placement grooves 4 adapted to the movable snap-fit plates 3 being opened on the side of the connecting frame 1, a positioning connection groove 5 adapted to the movable snap-fit plates 3 being provided at the bottom of the placement groove 4, a tightening bolt 6 being threaded through and threaded to one side of the connecting frame 1, one end of which is tightly abutting against the side of the movable snap-fit plate 3, and a plurality of threaded holes 7 communicating with the placement grooves 4 being opened on one side of the connecting frame 1, the tightening bolt 6 being threaded through and threaded to the threaded holes 7.
[0028] Specifically, when large-scale use of protective safety nets is required, several protective safety nets need to be assembled and connected. Adjacent connecting frames 1 are assembled, and several movable snap-fit plates 3 are inserted into two adjacent placement slots 4. The two placement slots 4 are rectangular and adapted to the movable snap-fit plates 3. The movable snap-fit plates 3 are snapped between two positioning connecting slots 5, and both ends of the movable snap-fit plates 3 are dovetail-shaped. The tightening bolts 6 are threaded into the threaded holes 7. The tightening bolts 6 are locked, and the ends of the tightening bolts 6 press the movable snap-fit plates 3 against the two positioning connecting slots 5. The two adjacent connecting frames 1 are connected and fixed, which facilitates the connection and installation of the two connecting frames 1 and improves the stability of the two connecting frames 1 after connection.
[0029] As a technical optimization of this utility model, a number of opening slots 8 are provided on one side of the connecting frame 1. A semi-circular threaded ring 9 is provided at the bottom of the opening slot 8. A threaded hole 7 is opened inside the threaded ring 9. A locking nut 10 is threadedly connected between two threaded rings 9.
[0030] Specifically, the sides of the two connecting frames 1 are aligned, the threads of the two adjacent threaded rings 9 are matched, the locking nut 10 is threaded onto the sides of the two threaded rings 9, and the locking nut 10 is tightened. This not only improves the accuracy of the alignment between the two adjacent connecting frames 1, but also improves the stability of the two connecting frames 1 after connection.
[0031] As a technical optimization of this utility model, a sealing cover plate 11 for sealing the opening groove 8 is threadedly connected at the opening groove 8. The inner side wall of the sealing cover plate 11 abuts against the end of the tightening bolt 6. A snap-fit block 14 is provided on the side of the sealing cover plate 11 away from the tightening bolt 6. The snap-fit block 14 is polygonal.
[0032] Specifically, after the tightening bolt 6 is installed, the sealing cover 11 is threaded onto the opening groove 8. The sealing cover 11 is a rubber product, which can seal the opening groove 8, reducing the possibility of the tightening bolt 6 rusting. The top of the sealing cover 11 is tightly against one end of the tightening bolt 6, preventing the tightening bolt 6 from loosening. The sealing cover 11 is tightened or loosened by the snap-fit block 14. The snap-fit block 14 is the same size as the bolt head of the tightening bolt 6 and the locking nut 10. They can all be installed or removed by an electric wrench with a suitable socket, improving the efficiency of installing the whole device.
[0033] As a technical optimization of this utility model, the connecting frame 1 has several connecting holes 12 on multiple sides. Both ends of the connecting holes 12 penetrate the side of the connecting frame 1. Adaptive positioning plug-in posts 13 are inserted between the ends of two adjacent connecting holes 12. After several connecting frames 1 are connected, the entire protective net is installed on the protective frame by passing an iron wire through the connecting holes 12 located on the side of the connecting frame 1 at the edge position. In actual installation, reinforcing rods are appropriately installed between several connecting frames 1 to ensure the stability of the overall protective device. When connecting two adjacent connecting frames 1, the positioning plug-in posts 13 are inserted into the corresponding connecting holes 12 to improve the stability after several connecting frames 1 are connected and installed.
[0034] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. A protective safety net, characterized in that, The frame includes a connecting frame (1), which is equipped with a protective mesh (2) for protection. Several movable snap-fit plates (3) are provided between the sides of two adjacent connecting frames (1). Both ends of the movable snap-fit plates (3) are symmetrical dovetail-shaped. Several rectangular placement slots (4) that are adapted to the movable snap-fit plates (3) are provided on the side of the connecting frame (1). The bottom of the placement slots (4) is equipped with positioning connection slots (5) that are adapted to the movable snap-fit plates (3). A tightening bolt (6) with one end tightly abutting against the side of the movable snap-fit plate (3) is threaded through one side of the connecting frame (1).
2. The protective safety net according to claim 1, characterized in that, The connecting frame (1) has several threaded holes (7) on one side that communicate with the placement slot (4), and the tightening bolt (6) passes through and is threadedly connected to the threaded holes (7).
3. A protective safety net according to claim 2, characterized in that, A number of opening slots (8) are provided on one side of the connecting frame (1). A semi-circular threaded ring (9) is provided at the bottom of the opening slot (8). A threaded hole (7) is opened inside the threaded ring (9). A locking nut (10) is threaded between two threaded rings (9).
4. A protective safety net according to claim 3, characterized in that, The opening slot (8) is threadedly connected to a sealing cover plate (11) for sealing the opening slot (8), and the inner sidewall of the sealing cover plate (11) abuts against the end of the tightening bolt (6).
5. A protective safety net according to claim 1, characterized in that, The connecting frame (1) has several connecting holes (12) on multiple sides, and both ends of the connecting holes (12) penetrate the side of the connecting frame (1).
6. A protective safety net according to claim 5, characterized in that, A suitable positioning plug (13) is inserted between the ends of two adjacent connecting holes (12).
7. A protective safety net according to claim 4, characterized in that, The sealing cover (11) has a snap-fit block (14) on the side away from the tightening bolt (6), and the snap-fit block (14) is polygonal.