Safety net testing device

Abstract

The utility model discloses a safety net testing device, and particularly relates to the technical field of safety net testing, the safety net testing device comprises a protection box, a steel ball and a main rod, a buffer layer is arranged at the bottom end in the protection box, and a parallel safety net fixing assembly is arranged at the bottom end in the protection box. The positioning frame and the fixing frames are arranged, the positioning frame is installed in the protection box, the fixing frames are used for fixing the safety net, the multiple sets of fixing frames are located at the side end of the positioning frame and distributed in parallel, and the distances are reserved between the multiple sets of fixing frames, so that during use, the safety net can be inserted into the inner side along the inserting grooves in the front ends of the fixing frames; after the safety net is flatly laid on the inner sides of the fixing frames, the fixing bolts on the upper portion can be rotated, the fixing bolts move downwards, the bottoms of the fixing bolts enter the inserting grooves and then abut against the surface of the safety net, and then the safety net inserted into the inserting grooves can be fixed; the safety net testing device is convenient to fix a plurality of groups of safety nets in parallel.

Description

Technical Field

[0001] The utility model relates to the technical field of safety net testing, in particular to a safety net testing device. Background Art

[0002] A safety net is a net set under or beside high-altitude building construction equipment or acrobatic performances for protection to prevent people or objects from falling and causing accidents. It needs to pass multiple tests to ensure its performance. The test items include appearance, specifications, materials, mechanics, weather resistance, flame retardancy, etc. This device is a safety net testing device used to test the impact resistance of safety nets.

[0003] When in use, the safety net testing device usually tests the impact resistance of a single group of safety nets, and it is not convenient to test the impact resistance effect of multiple groups of safety nets in a combined state.

[0004] Therefore, a safety net testing device is needed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a safety net testing device to solve the problem that the safety net testing device is not convenient for testing multiple groups of safety nets as mentioned in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A safety net testing device, including a protective box, a steel ball and a main rod. A buffer layer is arranged at the bottom end inside the protective box. A parallel safety net fixing component is arranged at the bottom end inside the protective box. The fixing component includes a positioning frame, a fixing frame, a slot, a fixing hole and a fixing bolt. The positioning frame is installed at the bottom end inside the protective box. A fixing frame is installed on one side of the positioning frame. A slot is arranged on one side of the fixing frame. Fixing holes are arranged at the top end of the fixing frame. The bottom end of the fixing hole extends into the slot. An internal thread is arranged inside the fixing hole, and an external thread is arranged on the surface of the fixing bolt. A main rod is installed on one side of the protective box.

[0007] Further, a plurality of fixing frames are installed on one side of the positioning frame, and the plurality of fixing frames are arranged in parallel.

[0008] Further, a plurality of fixing holes are arranged at the top end of the fixing frame, and the plurality of fixing holes are symmetrically distributed.

[0009] Further, an internal thread is arranged inside the fixing hole, and an external thread is arranged on the surface of the fixing bolt.

[0010] Further, a winch is arranged at the bottom end on one side of the main rod. A steel cable is installed at one end of the winch. A hook is installed at the bottom end of the steel cable. A steel ball is installed at the bottom end of the hook.

[0011] Furthermore, a top groove is provided at the top end of the main rod, a sliding groove is provided on one side of the top groove, a top plate is installed at the top end of the top groove, a motor is installed at the top end of the top plate, the bottom end of the motor extends into the interior of the top groove, a lead screw is installed at the bottom end of the motor, a nut sleeve is provided on the outer side of the lead screw, a slider is installed on one side of the nut sleeve, and one side of the slider extends to the outside of the main rod.

[0012] Preferably, a lifting plate is installed on one side of the slider, and a guide wheel is movably installed at one end of the lifting plate.

[0013] Furthermore, a positioning rod is installed on the outer side wall of the main rod, a movable sleeve is movably installed on the outer side of the positioning rod, an adjustment hole is provided on one side of the movable sleeve, one side of the adjustment hole extends into the interior of the movable sleeve, an adjustment bolt is provided on one side of the adjustment hole, and an industrial camera is installed at the bottom end of the movable sleeve.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: by providing a positioning frame and a fixing frame, the positioning frame is installed inside the protective box, and the fixing frame is used to fix the safety net. The fixing frames are located at the side end of the positioning frame and are distributed in parallel with a distance left between them. During use, the safety net can be inserted into the inner side along the slot at the front end of the fixing frame. After being laid flat inside the fixing frame, the fixing bolt above can be rotated. When the bottom of the fixing bolt moves down and enters the slot, it abuts against the surface of the safety net, thereby fixing the safety net inserted into the slot. Multiple fixing frames are installed, enabling the fixation of multiple safety nets, achieving the convenience of parallel fixation of multiple safety nets in this safety net testing device;

[0015] By providing a lifting plate, starting the motor can drive the lead screw to rotate. Under the screw thread fit, the nut sleeve can move up and down along the lead screw, thereby driving the lifting plate connected to the nut sleeve to move up and down. Cooperating with the guide wheel, the initial height of the steel ball can be adjusted, achieving the adjustability of the height position of the steel ball in this safety net testing device;

[0016] By providing an industrial camera, the movable sleeve is located at the front end of the main rod, and a movable sleeve is movably installed on the outside. During use, after loosening the adjustment bolt, the movable sleeve can rotate on the outer side of the positioning rod, thereby adjusting the use angle of the industrial camera at the bottom side of the movable sleeve. With the help of the industrial camera, it can assist in photographing and recording the safety net testing process inside the lower protective box, assisting the operator in recording the testing process, achieving the auxiliary recording of the testing process in this safety net testing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view sectional structure schematic diagram of the present utility model;

[0018] Figure 2Schematic side view structure of the present utility model;

[0019] Figure 3 Front view sectional structure schematic diagram of the fixing bracket of the present utility model;

[0020] Figure 4 Front view sectional structure schematic diagram of the main rod of the present utility model;

[0021] Figure 5 Front view sectional structure schematic diagram of the positioning rod of the present utility model.

[0022] In the figure: 1. Protection box; 2. Buffer layer; 3. Positioning bracket; 4. Fixing bracket; 5. Slot; 6. Fixing hole; 7. Fixing bolt; 8. Winch; 9. Steel cable; 10. Hook; 11. Steel ball; 12. Main rod; 13. Top slot; 14. Chute; 15. Top plate; 16. Motor; 17. Lead screw; 18. Nut sleeve; 19. Slide block; 20. Lifting plate; 21. Guide wheel; 22. Positioning rod; 23. Movable sleeve; 24. Adjusting hole; 25. Adjusting bolt; 26. Industrial camera. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , an embodiment provided by the present utility model: A safety net testing device, including a protection box 1, a steel ball 11 and a main rod 12. A buffer layer 2 is provided at the bottom end inside the protection box 1. A parallel safety net fixing component is provided at the bottom end inside the protection box 1. The fixing component includes a positioning bracket 3, a fixing bracket 4, a slot 5, a fixing hole 6 and a fixing bolt 7. A positioning bracket 3 is installed at the bottom end inside the protection box 1. A fixing bracket 4 is installed on one side of the positioning bracket 3. A plurality of fixing brackets 4 are installed on one side of the positioning bracket 3. The plurality of fixing brackets 4 are arranged in parallel. A slot 5 is provided on one side of the fixing bracket 4. A fixing hole 6 is provided at the top end of the fixing bracket 4. The bottom end of the fixing hole 6 extends into the inside of the slot 5. A plurality of fixing holes 6 are provided at the top end of the fixing bracket 4. The plurality of fixing holes 6 are symmetrically distributed. A fixing bolt 7 is provided inside the fixing hole 6. Internal threads are provided inside the fixing hole 6. External threads are provided on the surface of the fixing bolt 7. A main rod 12 is installed on one side of the protection box 1;

[0025] Specifically, as Figure 1 and Figure 3As shown in the figure, during use, after the safety net is unfolded, the fixing frame 4 is a square frame plate with a through groove in the center for the steel ball 11 to fall for testing. It slides into the inner side of the fixing frame 4 along the slot 5 at the front end of the fixing frame 4. Then, the fixing bolt 7 above the fixing frame 4 can be rotated downward, and the bottom end of the fixing bolt 7 abuts against the surface of the safety net. Multiple groups of fixing bolts 7 cooperate to complete the fixing of the safety net. At this time, in the through groove at the center position of the fixing frame 4, there is the unfolded safety net for the steel ball 11 to be tested;

[0026] At the bottom end of one side of the main rod 12, a winch 8 is provided. One end of the winch 8 is equipped with a steel cable 9. The bottom end of the steel cable 9 is equipped with a hook 10. The bottom end of the hook 10 is equipped with a steel ball 11. At the top end of the main rod 12, a top groove 13 is provided. One side of the top groove 13 is provided with a sliding groove 14. At the top end of the top groove 13, a top plate 15 is installed. At the top end of the top plate 15, a motor 16 is installed. The bottom end of the motor 16 extends into the interior of the top groove 13. The bottom end of the motor 16 is equipped with a lead screw 17. The outer side of the lead screw 17 is provided with a nut 18. One side of the nut 18 is equipped with a slider 19. One side of the slider 19 extends to the outer side of the main rod 12. One side of the slider 19 is equipped with a lifting plate 20. One end of the lifting plate 20 is movably equipped with a guide wheel 21;

[0027] Specifically, as Figure 1 and Figure 4 shown, during use, the steel cable 9 cooperates with the guide wheel 21 on the side end of the lifting plate 20 for the lifting operation of the steel ball 11. If the motor 16 is started, the lead screw 17 can be driven to rotate. The lead screw 17 and the nut 18 cooperate, and the nut 18 can move up and down along the lead screw 17. Thus, the height position of the lifting plate 20 connected to the outside can be adjusted, indirectly realizing the adjustment of the falling height of the steel ball 11;

[0028] A positioning rod 22 is installed on the outer side wall of the main rod 12. A movable sleeve 23 is movably installed on the outer side of the positioning rod 22. One side of the movable sleeve 23 is provided with an adjustment hole 24. One side of the adjustment hole 24 extends into the interior of the movable sleeve 23. One side of the adjustment hole 24 is provided with an adjustment bolt 25. An industrial camera 26 is installed at the bottom end of the movable sleeve 23;

[0029] Specifically, as Figure 1 and Figure 5 shown, during use, the industrial camera 26 at the front end position of the main rod 12 is used to record the images during the test of the safety net inside the protection box 1, which can be used to assist the testers in judging the changes of the safety net before and after the test later. When the adjustment bolt 25 is loosened, the movable sleeve 23 at the top of the industrial camera 26 can rotate around the positioning rod 22 to adjust the shooting position of the industrial camera 26.

[0030] Working principle: During use, a buffer layer 2 is laid on the bottom side inside the protective box 1. The buffer layer 2 can be made of other buffer materials such as sand grains or sponges. After opening the isolation door at the front end of the protective box 1, the safety net to be tested can be unfolded, slid into the slot 5 at the front end of the fixing frame 4, and multiple fixing bolts 7 at the top of the fixing frame 4 are tightened to fix the safety net with the help of the fixing bolts 7. The fixing frame 4 is a square frame. After the safety net is fixed, the through groove inside the fixing frame 4 is the unfolded safety net, located below the steel ball 11, waiting to be tested. Multiple fixing frames 4 are installed and distributed in parallel, enabling the cooperative testing of multiple safety nets to test the impact resistance when multiple safety nets are used in combination. After the safety net is fixed, the isolation door can be closed, and the winch 8 is driven to release the steel ball 11. In the free-fall state of the steel ball 11, the safety net below is subjected to an impact test. During the test process, it can be recorded by the industrial camera 26, which can be used to assist the tester in judging the changes in the safety net before and after the test. At the same time, if the motor 16 is started, the lead screw 17 can be driven to rotate. The lead screw 17 and the nut sleeve 18 cooperate, and the nut sleeve 18 can move up and down along the lead screw 17. Thus, the height position of the lifting plate 20 connected to the outside can be adjusted, indirectly realizing the adjustment of the falling height of the steel ball 11, and the impact situation of the safety net at different height states can be tested.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A safety net testing device, comprising a protection box (1), a steel ball (11) and a main rod (12), characterized in that: A buffer layer (2) is provided at the bottom end of the interior of the protection box (1), and a parallel safety net fixing component is provided at the bottom end of the interior of the protection box (1); The fixing assembly comprises a positioning frame (3), a fixing frame (4), a slot (5), a fixing hole (6) and a fixing bolt (7); the positioning frame (3) is installed at the bottom end of the interior of the protective box (1); the fixing frame (4) is installed on one side of the positioning frame (3); a slot (5) is provided on one side of the fixing frame (4); a fixing hole (6) is provided at the top end of the fixing frame (4); the bottom end of the fixing hole (6) extends to the interior of the slot (5); a fixing bolt (7) is provided inside the fixing hole (6); and a main rod (12) is installed on one side of the protective box (1).

2. A safety net testing device according to claim 1, characterized in that: A plurality of the fixing frames (4) are installed on one side of the positioning frame (3), and the plurality of the fixing frames (4) are distributed in parallel.

3. A safety net testing device according to claim 1, characterized in that: A plurality of fixing holes (6) are arranged on the top of the fixing frame (4), and the plurality of fixing holes (6) are symmetrically distributed.

4. A safety net testing device according to claim 1, characterized in that: The interior of the fixing hole (6) is provided with an internal thread, and the surface of the fixing bolt (7) is provided with an external thread.

5. A safety net testing device according to claim 1, characterized in that: A winch (8) is provided at the bottom end of one side of the main rod (12), a steel cable (9) is installed at one end of the winch (8), a hook (10) is installed at the bottom end of the steel cable (9), and a steel ball (11) is installed at the bottom end of the hook (10).

6. A safety net testing device according to claim 1, characterized in that: The top end of the main rod (12) is provided with a top groove (13), one side of the top groove (13) is provided with a slide groove (14), the top end of the top groove (13) is installed with a top plate (15), the top end of the top plate (15) is installed with a motor (16), the bottom end of the motor (16) extends to the inside of the top groove (13), the bottom end of the motor (16) is installed with a screw rod (17), the outer side of the screw rod (17) is provided with a screw sleeve (18), one side of the screw sleeve (18) is installed with a slider (19), and one side of the slider (19) extends to the outer side of the main rod (12).

7. A safety net testing device according to claim 6, characterized in that: A lifting plate (20) is installed on one side of the sliding block (19), and a guide wheel (21) is movably installed on one end of the lifting plate (20).

8. A safety net testing device according to claim 1, characterized in that: A positioning rod (22) is installed on the outer wall of the main rod (12), and a movable sleeve (23) is movably installed on the outer side of the positioning rod (22). An adjustment hole (24) is provided on one side of the movable sleeve (23), and one side of the adjustment hole (24) extends to the interior of the movable sleeve (23). An adjustment bolt (25) is provided on one side of the adjustment hole (24), and an industrial camera (26) is installed at the bottom end of the movable sleeve (23).

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