Rope net strength performance automatic detection device

Abstract

The invention provides a rope net strength performance automatic detection device, and relates to the technical field of strength detection.The rope net strength performance automatic detection device comprises a bottom frame, a center table is fixed to the center of the bottom frame, a top frame is fixed to the top of the center table, an air cylinder is fixed to the top of the top frame, the extension end of the air cylinder penetrates through the top frame to be fixedly provided with an impact block, and a driving assembly is arranged in the bottom frame; and the driving assembly comprises transverse frames, the transverse frames are installed on the portions, located on the two sides of the center table, in the bottom frame in a sliding mode, two vertical rods are symmetrically installed in the transverse frames in a sliding mode, and clamps are installed at the tops of the vertical rods. According to the rope net unfolding device, the rope net can be switched to be used between a round shape and a rectangular shape, an oblique unfolding mode or a transverse and longitudinal two-dimensional unfolding mode can be adopted, so that the rope nets in different shapes can be used in the rope net unfolding device, meanwhile, the installation convenience is improved, and the rope net unfolding device is not affected by the shapes of the rope nets.

Description

Technical Field

[0001] The invention relates to the technical field of strength detection, in particular to an automatic detection device for the strength performance of a rope net. Background Art

[0002] Rope net is a structure composed of rope and net. Rope is one of the earliest textiles of mankind. It is usually strengthened by twisting or weaving to form a certain length of fiber for connection and traction. Net is an appliance made of ropes and wires of different materials. It is widely used in sports, leisure life, agriculture, construction and other fields. Safety net is used in high-altitude operations or performances to prevent people or objects from falling and reduce injuries. Therefore, when the rope net leaves the factory, the strength of the rope net needs to be tested to ensure the quality of the rope net.

[0003] The strength of rope nets is generally tested by their impact resistance and torque. Rope nets of different shapes exist due to their different uses. When testing the strength of rope nets, they are generally fixed at multiple points through angles, and then stretched to tighten them. However, in this process, circular and rectangular rope nets are not completely interchangeable in actual use. For example, a circular rope net generally requires four points to move diagonally to fully unfold the rope net, while a rectangular rope net is generally fully unfolded by clamping its four corners and then moving it horizontally and vertically. These two unfolding methods are not exactly the same. When a circular rope net uses the unfolding method of a rectangular rope net, it is easy to cause incomplete and uneven surface unfolding. When a rectangular rope net is unfolded through a circular rope net, it cannot meet the movement and unfolding requirements of the rectangle in two dimensions. Therefore, the existing detection device has inconveniences in the clamping and unfolding work before testing the strength of the rope net. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an automatic detection device for the strength performance of a rope net to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure, and the movement mode of the switching component and the driving component coordinated can be switched between a circular shape and a rectangular shape according to the rope net. The oblique expansion mode or the expansion mode in the horizontal and vertical dimensions can be adopted respectively, so that rope nets of different shapes can be used in the present device, while improving the convenience of installation and not being affected by the shape of the rope net itself.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized by the following technical scheme: an automatic detection device for the strength performance of a rope net, comprising a bottom frame, a center platform is fixed at the center of the bottom frame, and a top frame is fixed on the top of the center platform, a cylinder is fixed on the top of the top frame, and an impact block is fixed on the extended end of the cylinder through the top frame, a driving component is arranged inside the bottom frame, the driving component comprises a horizontal frame, horizontal frames are slidably installed on both sides of the center platform in the bottom frame, and two vertical rods are symmetrically slidably installed inside the horizontal frame, a clamp is installed on the top of the vertical rod, a switching component is arranged on the top of the center platform, the switching component comprises a limit frame, a limit frame is sleeved on the middle surface of the vertical rod, and a connecting shaft is fixed at one end of the limit frame, a second gear and a third gear are rotatably installed on the top of the center platform corresponding to the positions of the two vertical rods on the same side, the second gear is meshed with the third gear, and a convex block is fixed on the top of the second gear and the third gear, a slot is opened at the bottom of the connecting shaft, and the convex block is slidably inserted into the slot, a connecting block is rotatably sleeved on the surface of the vertical rod, and the connecting block slides along the inside of the limit frame.

[0006] Furthermore, the drive assembly also includes a first screw rod, the first screw rod is rotatably installed inside the bottom frame through a bearing, and the bottom of the cross frame is threadedly sleeved on the surface of the first screw rod, the second screw rod is rotatably installed inside the cross frame through a bearing, and two screw hole blocks are symmetrically threadedly sleeved on the surface of the second screw rod.

[0007] Furthermore, drive motors are fixed inside the transverse frame and outside the bottom frame at positions corresponding to the second screw rod and the first screw rod, and the output end of the drive motor is fixedly connected to the first screw rod and the second screw rod.

[0008] Furthermore, the switching component also includes a vertical frame, the limit frame is fixed with a vertical frame on the side of the top of the screw hole block, and a slider is slidably connected in the vertical frame, a plug post is fixed on the surface of the slider, and a hole is opened at the position of the plug post at the top of the screw hole block.

[0009] Furthermore, a propulsion electric push rod is fixed to the bottom of one side of the limit frame, and a first connecting rod is fixed to the extended end of the propulsion electric push rod. A third connecting rod is rotatably installed on the side of the first connecting rod through a rotating shaft, and the other end of the third connecting rod is rotatably installed on the back of the slider through a rotating shaft.

[0010] Furthermore, two first gears are symmetrically rotatably installed on the top of the center platform through bearings, the two first gears are meshingly connected, and the first gear is located at the bottom of the second gear. A mounting plate is installed on the top of the first gear, and the second gear and the third gear are both rotatably installed on the mounting plate. The second gear is fixedly connected to the first gear, and a motor for driving the first gear to rotate is installed inside the center platform.

[0011] Furthermore, the connecting shaft is provided with inlets and outlets on the transverse and longitudinal surfaces of the slot, and the protrusion is slidably inserted into the slot along the inlets and outlets.

[0012] Furthermore, a circular ring is rotatably mounted on the top of the connecting shaft through a bearing, and an extrusion electric push rod is fixed to the side surface of the circular ring, and the extended end of the extrusion electric push rod passes through the inlet and outlet to be in extrusion contact with the protrusion.

[0013] Furthermore, a second connecting rod is rotatably mounted on the front end of the first connecting rod via a rotating shaft, and the other end of the second connecting rod is rotatably connected to the side of the ring via the rotating shaft.

[0014] Furthermore, an anti-collision plate is installed on the top of the second gear and the third gear of the central platform.

[0015] Beneficial effects of the present invention:

[0016] 1. The height of the vertical rod of the present invention is relatively high, and the distance from the vertical rod to the limit plate meets the test of the impact resistance strength of the rope net. The anti-collision plate can reduce the impact damage caused by the impact block to the top structure of the center platform.

[0017] When the second gear is engaged and the third gear is engaged, the connecting shaft can rotate synchronously, and the four sets of limit frames are rotated to a position inclined at a forty-five degree angle, guiding the movement of the vertical rod, and the vertical rod moves obliquely along the limit frame to unfold the circular rope net.

[0018] 3. When the unfolding object of the present invention is a rectangle, the extended end of the electric push rod is pushed out, the first connecting rod, the second connecting rod and the third connecting rod all move in opposite directions, the screw hole block moves to the bottom of the vertical rod, and through the connection between the plug column and the plug hole, the screw hole block can pull the vertical rod to slide along the horizontal frame. At the same time, the extrusion electric push rod at the bottom of the ring rotates to the other side. At this time, when the vertical rod moves horizontally, the connecting shaft can be separated from the protrusion through the horizontal inlet and outlet, and then moved horizontally and vertically under the drive of the driving assembly to unfold the rectangular and long rope net.

[0019] 4. The present invention rotates through the first gear, and the two first gears mesh with each other and drive the second gear to rotate, so the two second gears turn in opposite directions, the second gear meshes with the third gear, and the two sets of limit frames on the same side turn in opposite directions, so the four sets of limit frames can rotate at the same time and rotate in four directions of forty-five degrees, which is convenient for guiding the vertical rod and unfolding the circular rope net evenly and flatly. Before installing the rope net, first move the vertical rod close to the center platform through the driving assembly, and the four sets of clamps are close to facilitate clamping the rope net. At this time, the connecting shaft is plugged into the protrusion through the inlet and outlet, and the connecting shaft can be driven to rotate by the second gear and the third gear.

[0020] 5. The present invention can drive the transverse frame to slide along the inside of the bottom frame through the first screw rod, and move closer to or away from the center platform, so as to facilitate the vertical rods to be gathered together for the initial clamping of the rope net and the subsequent unfolding and tightening. When the circular or rectangular rope net is unfolded, the first screw rod needs to be rotated. When the limit frame is at a forty-five degree angle, as the transverse frame moves along the first screw rod, the vertical rod slides along the bottom of the transverse frame. At the same time, the connecting block slides along the inside of the limit frame, and the guide edge of the limit frame moves downward until the circular rope net is fully unfolded. When the rectangular rope net is unfolded, the first screw rod and the second screw rod cooperate to move the vertical rod in the horizontal and vertical directions to fully unfold the rectangular rope net, and it can be adjusted according to the length of the rope net.

[0021] 6. Compared with the prior art, the present invention uses a moving mode in which a switching component and a driving component cooperate to switch between a circular shape and a rectangular shape according to the shape of the rope net. The present invention can adopt an oblique expansion mode or an expansion mode in two dimensions, namely, a horizontal and a vertical expansion mode, so that rope nets of different shapes can be used in the present device. At the same time, the convenience of installation is improved and is not affected by the shape of the rope net itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an automatic detection device for the strength performance of a rope net according to the present invention;

[0023] Figure 2 It is a schematic diagram of the top frame surface structure of a device for automatically detecting the strength performance of a rope net according to the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the bottom frame of a device for automatically detecting the strength performance of a rope net according to the present invention;

[0025] Figure 4 This is a schematic diagram of the gear connection of a device for automatically detecting the strength performance of a rope net according to the present invention;

[0026] Figure 5 This is a schematic diagram of the connection between the vertical rod and the horizontal frame of a rope net strength performance automatic detection device of the present invention;

[0027] Figure 6 This is a schematic diagram of the separation of the connecting shaft and the gear of a rope net strength performance automatic detection device of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of a switching component of a rope net strength performance automatic detection device of the present invention;

[0029] Figure 8 The present invention is a schematic diagram of the connection between a connecting shaft and a screw hole block of an automatic detection device for the strength performance of a rope net.

[0030] In the figure: 1. bottom frame; 2. top frame; 21. cylinder; 22. impact block; 23. anti-collision plate; 3. switching assembly; 31. center table; 32. first gear; 33. mounting plate; 34. second gear; 35. third gear; 36. limit frame; 37. connecting shaft; 38. slot; 39. inlet and outlet; 310. bump; 311. push electric push rod; 312. first connecting rod; 313. second connecting rod; 314. ring; 315. squeeze electric push rod; 316. vertical frame; 317. third connecting rod; 318. slider; 319. plug column; 4. drive assembly; 41. drive motor; 42. first screw; 43. horizontal frame; 44. second screw; 45. screw hole block; 46. plug hole; 5. vertical rod; 51. clamp; 52. connecting block. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] See also Figures 1 to 8The present invention provides a technical solution: an automatic detection device for the strength performance of a rope net, comprising a bottom frame 1, a center platform 31 is fixed at the center of the bottom frame 1, and a top frame 2 is fixed on the top of the center platform 31, a cylinder 21 is fixed on the top of the top frame 2, and an impact block 22 is fixed on the extended end of the cylinder 21 passing through the top frame 2, a driving component 4 is arranged inside the bottom frame 1, and the driving component 4 comprises a transverse frame 43, transverse frames 43 are slidably installed on both sides of the center platform 31 in the bottom frame 1, and two vertical rods 5 are symmetrically slidably installed inside the transverse frame 43, a clamp 51 is installed on the top of the vertical rod 5, a switching component 3 is arranged on the top of the center platform 31, and the switching component 3 comprises a limit frame 36, the limit frame 36 is sleeved on the middle surface of the vertical rod 5, and a connecting shaft 37 is fixed at one end of the limit frame 36, The second gear 34 and the third gear 35 are rotatably installed at the positions of the two vertical rods 5 on the same side of the top of the central platform 31, and the second gear 34 is meshed with the third gear 35, and the second gear 34 and the third gear 35 are fixed with a protrusion 310 on the top, and a slot 38 is provided at the bottom of the connecting shaft 37, and the protrusion 310 is slidably inserted into the slot 38. A connecting block 52 is rotatably sleeved on the surface of the vertical rod 5, and the connecting block 52 slides along the inside of the limit frame 36. When using the device, the vertical rod 5 and the clamp 51 are gathered near the central platform 31 through the driving component 4, and the clamp 51 is clamped on the side of the rope net. According to the shape of the rope net, whether it is circular or rectangular, the switching component 3 selects the corresponding unfolding method to fully unfold the rope net and tighten it, and the impact block 22 is driven by the cylinder 21 to hit the rope net to test its strength.

[0033] In this embodiment, the driving assembly 4 also includes a first screw 42, the first screw 42 is rotatably installed inside the bottom frame 1 through a bearing, and the bottom of the cross frame 43 is threadedly sleeved on the surface of the first screw 42, and the second screw 44 is rotatably installed inside the cross frame 43 through a bearing, and two screw hole blocks 45 are symmetrically threadedly sleeved on the surface of the second screw 44, and the position of the second screw 44 and the first screw 42 inside the cross frame 43 and the outside of the bottom frame 1 corresponding to the second screw 44 and the first screw 42 are fixed with a driving motor 41, and the output end of the driving motor 41 is fixedly connected to the first screw 42 and the second screw 44, and the first screw 42 can drive the cross frame 43 to slide along the inside of the bottom frame 1 to move closer to or away from the center platform 3 1, so as to facilitate the vertical rods 5 to be gathered together for the preliminary clamping of the rope net and the subsequent unfolding and tightening. When the circular or rectangular rope net is unfolded, the first screw 42 needs to be rotated. When the limit frame 36 is at a forty-five degree angle, as the horizontal frame 43 moves along the first screw 42, the vertical rod 5 slides along the bottom of the horizontal frame 43. At the same time, the connecting block 52 slides along the inside of the limit frame 36, and the guide edge of the limited frame 36 moves downward until the circular rope net is fully unfolded. When the rectangular rope net is unfolded, the first screw 42 and the second screw 44 cooperate to move the vertical rod 5 in the horizontal and vertical directions to fully unfold the rectangular rope net, and it can be adjusted according to the length of the rope net.

[0034] In this embodiment, two first gears 32 are symmetrically rotatably installed on the top of the center platform 31 through bearings, the two first gears 32 are meshed and connected, and the first gear 32 is located at the bottom of the second gear 34, a mounting plate 33 is installed on the top of the first gear 32, and the second gear 34 and the third gear 35 are both rotatably installed on the mounting plate 33, the second gear 34 is fixedly connected to the first gear 32, a motor for driving the first gear 32 to rotate is installed inside the center platform 31, the connecting shaft 37 is located on the horizontal and longitudinal surfaces of the slot 38 and has inlets and outlets 39, the protrusion 310 is slidably inserted into the slot 38 along the inlets and outlets 39, a ring 314 is rotatably installed on the top of the connecting shaft 37 through a bearing, and an extrusion electric push rod 315 is fixed to the side surface of the ring 314, and the extended end of the extrusion electric push rod 315 The first gear 32 is meshed with the second gear 34 and the second gear 34 is meshed with the third gear 35. The two sets of limit frames 36 on the same side also have opposite directions. Therefore, the four sets of limit frames 36 can rotate at the same time and rotate in four directions of forty-five degrees, which is convenient for guiding the vertical rod 5 and unfolding the circular rope net evenly and flatly. Before installing the rope net, the vertical rod 5 is first moved close to the center platform 31 through the driving assembly 4, and the four sets of clamps 51 are close to facilitate clamping of the rope net. At this time, the connecting shaft 37 is plugged into the protrusion 310 through the inlet and outlet 39, and the connecting shaft 37 can be driven to rotate by the second gear 34 and the third gear 35.

[0035] In this embodiment, the switching component 3 also includes a vertical frame 316, and the vertical frame 316 is fixed on the side of the limit frame 36 located at the top of the screw hole block 45, and a slider 318 is slidably connected in the vertical frame 316, and a plug post 319 is fixed on the surface of the slider 318. The top of the screw hole block 45 is provided with a plug hole 46 at the position corresponding to the plug post 319, and a push electric push rod 311 is fixed to the bottom of one side of the limit frame 36, and a first connecting rod 312 is fixed to the extended end of the push electric push rod 311, and a third connecting rod 317 is rotatably installed on the side of the first connecting rod 312 through a rotating shaft, and the other end of the third connecting rod 317 is rotatably installed with a slider 318 through a rotating shaft. On the back, the front end of the first connecting rod 312 is rotatably installed with the second connecting rod 313 through the rotating shaft, and the other end of the second connecting rod 313 is rotatably connected to the side of the ring 314 through the rotating shaft. When the detection object is a circular rope net, the extended end of the electric push rod 311 is retracted, the first connecting rod 312 moves horizontally, and the third connecting rod 317 is pulled to rotate upward. At the same time, the slider 318 moves upward along the vertical frame 316, and the plug column 319 is separated from the socket 46, and the connection between the vertical rod 5 and the screw hole block 45 is released. At this time, the vertical rod 5 can move alone along the inside of the horizontal frame 43 without being affected by the second screw 44. Before this, the screw hole block 45 needs to be moved to the horizontal frame 43 through the second screw 44. The two ends provide space for the separate movement of the vertical rod 5. The movement of the first connecting rod 312 simultaneously pulls the second connecting rod 313 to move. The other end of the second connecting rod 313 drives the ring 314 to rotate, so that the position of the extrusion electric push rod 315 is directly opposite to the horizontal inlet and outlet 39, and the protrusion 310 is limited by the extended end of the extrusion electric push rod 315, so that it remains in the slot 38 and is plugged into the connecting shaft 37. Then, in the process of the meshing transmission of the first gear 32, the second gear 34 and the third gear 35, the connecting shaft 37 can rotate synchronously, and the four sets of limit frames 36 are rotated to a position inclined at a forty-five degree angle to guide the movement of the vertical rod 5. The vertical rod 5 moves along the limit frame 3 6 is moved obliquely to unfold the circular rope net. When the unfolding object is a rectangle, the extended end of the electric push rod 311 is pushed out, and the first connecting rod 312, the second connecting rod 313 and the third connecting rod 317 are all moved in the opposite direction. The screw hole block 45 moves to the bottom of the vertical rod 5. Through the connection between the plug column 319 and the plug hole 46, the screw hole block 45 can pull the vertical rod 5 to slide along the horizontal frame 43. At the same time, the extrusion electric push rod 315 at the bottom of the ring 314 rotates to the other side. At this time, when the vertical rod 5 moves horizontally, the connecting shaft 37 can be separated from the protrusion 310 through the horizontal inlet and outlet 39, and then moved horizontally and vertically under the drive of the driving component 4 to unfold the rectangular and long rope net.

[0036] In this embodiment, an anti-collision plate 23 is installed on the top of the second gear 34 and the third gear 35 of the central platform 31. The height of the vertical rod 5 is relatively high, and the distance from the vertical rod 5 to the limit plate meets the test of the impact resistance strength of the rope net. The anti-collision plate 23 can reduce the impact damage caused by the impact block 22 to the top structure of the central platform 31.

[0037] When using the device, the vertical rod 5 and the clamp 51 are gathered near the center platform 31 through the driving assembly 4, and the clamp 51 is clamped on the side of the rope net. The motor drives the first gear 32 to rotate, and the two first gears 32 mesh with each other and drive the second gear 34 to rotate, so the two second gears 34 turn in opposite directions, and the second gear 34 meshes with the third gear 35. The two sets of limit frames 36 on the same side also turn in opposite directions, so the four sets of limit frames 36 can rotate at the same time and rotate in four directions of forty-five degrees, which is convenient for guiding the vertical rod 5 and unfolding the circular rope net evenly and flatly. Before installing the rope net, first move the vertical rod 5 close to the center platform 31 through the driving assembly 4, and the four sets of clamps 51 close to the center platform 31. To facilitate the clamping of the rope net, the connecting shaft 37 is plugged into the protrusion 310 through the inlet and outlet 39, and the connecting shaft 37 can be driven to rotate through the second gear 34 and the third gear 35. When the detection object is a circular rope net, the extended end of the electric push rod 311 is retracted, the first connecting rod 312 moves horizontally, and the third connecting rod 317 is pulled to rotate upward. At the same time, the slider 318 moves upward along the vertical frame 316, and the plug column 319 is separated from the socket 46, and the connection between the vertical rod 5 and the screw hole block 45 is released. At this time, the vertical rod 5 can move independently along the inside of the horizontal frame 43 without being affected by the second screw 44. Before this, the screw hole block 45 needs to be moved to the two ends of the horizontal frame 43 through the second screw 44, which is a single screw of the vertical rod 5. The movement of the first connecting rod 312 simultaneously pulls the second connecting rod 313 to move, and the other end of the second connecting rod 313 drives the ring 314 to rotate, so that the position of the extrusion electric push rod 315 is directly opposite to the horizontal inlet and outlet 39, and the protrusion 310 is limited by the extended end of the extrusion electric push rod 315, so that it remains in the slot 38 and plugged with the connecting shaft 37, and then in the process of the first gear 32, the second gear 34 and the third gear 35 meshing and transmitting, the connecting shaft 37 can rotate synchronously, and the four sets of limit frames 36 are rotated to a position inclined at a forty-five degree angle to guide the movement of the vertical rod 5, and the vertical rod 5 moves obliquely along the limit frame 36 to unfold the circular rope net. When the unfolding object is a rectangle, the extended end of the electric push rod 311 is pushed out, and the first connecting rod 312, the second connecting rod 313 and the third connecting rod 317 all move in opposite directions, and the screw hole block 45 moves to the bottom of the vertical rod 5. Through the connection between the plug column 319 and the plug hole 46, the screw hole block 45 can pull the vertical rod 5 to slide along the horizontal frame 43. At the same time, the extrusion electric push rod 315 at the bottom of the ring 314 rotates to the other side. At this time, when the vertical rod 5 moves horizontally, the connecting shaft 37 can be separated from the protrusion 310 through the horizontal inlet and outlet 39, and then moved horizontally and vertically under the drive of the driving component 4, to unfold the rectangular and longer rope net, and drive the impact block 22 to hit the rope net through the cylinder 21 to test its strength.

[0038] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rope net strength performance automatic detection device, comprising a bottom frame (1), characterized in that: A central platform (31) is fixed at the center of the bottom frame (1), and a top frame (2) is fixed on the top of the center platform (31). A cylinder (21) is fixed on the top of the top frame (2), and an extended end of the cylinder (21) passes through the top frame (2) and is fixed with an impact block (22). A driving component (4) is provided inside the bottom frame (1), and the driving component (4) includes a transverse frame (43). Transverse frames (43) are slidably installed on both sides of the center platform (31) in the bottom frame (1), and two vertical rods (5) are symmetrically slidably installed inside the transverse frame (43), and a clamp (51) is installed on the top of the vertical rod (5). A switching component (3) is provided on the top of the center platform (31), and the switching component (3) includes a limit frame (36). A limiting frame (36) is sleeved on the middle surface of the vertical rod (5), and a connecting shaft (37) is fixed on one end of the limiting frame (36). A second gear (34) and a third gear (35) are rotatably mounted on the top of the center platform (31) at positions corresponding to the two vertical rods (5) on the same side. The second gear (34) is meshed and connected with the third gear (35), and a protrusion (310) is fixed on the top of the second gear (34) and the third gear (35). A slot (38) is provided at the bottom of the connecting shaft (37), and the protrusion (310) is slidably inserted into the slot (38). A connecting block (52) is rotatably sleeved on the surface of the vertical rod (5), and the connecting block (52) slides along the inside of the limiting frame (36).

2. The automatic detection device for the strength performance of a rope net according to claim 1 is characterized in that: The driving assembly (4) further comprises a first screw rod (42), the first screw rod (42) is rotatably mounted inside the bottom frame (1) via a bearing, and the bottom of the cross frame (43) is threadedly sleeved on the surface of the first screw rod (42), a second screw rod (44) is rotatably mounted inside the cross frame (43) via a bearing, and two screw hole blocks (45) are symmetrically threadedly sleeved on the surface of the second screw rod (44).

3. The automatic detection device for the strength performance of a rope net according to claim 2 is characterized in that: A driving motor (41) is fixed inside the transverse frame (43) and outside the bottom frame (1) at positions corresponding to the second screw rod (44) and the first screw rod (42), and an output end of the driving motor (41) is fixedly connected to the first screw rod (42) and the second screw rod (44).

4. The automatic detection device for the strength performance of a rope net according to claim 2 is characterized in that: The switching assembly (3) further comprises a vertical frame (316), the vertical frame (316) being fixed on the side of the limit frame (36) located at the top of the screw hole block (45), and a slider (318) being slidably connected inside the vertical frame (316), a plug post (319) being fixed on the surface of the slider (318), and a plug hole (46) being provided at a position corresponding to the plug post (319) on the top of the screw hole block (45).

5. The automatic detection device for the strength performance of a rope net according to claim 4 is characterized in that: A propulsion electric push rod (311) is fixed to the bottom of one side of the limit frame (36), and a first connecting rod (312) is fixed to the extended end of the propulsion electric push rod (311), a third connecting rod (317) is rotatably mounted on the side of the first connecting rod (312) via a rotating shaft, and the other end of the third connecting rod (317) is rotatably mounted on the back of a sliding block (318) via a rotating shaft.

6. The automatic detection device for the strength performance of a rope net according to claim 5, characterized in that: Two first gears (32) are symmetrically rotatably mounted on the top of the center platform (31) via bearings, the two first gears (32) are meshed and connected, and the first gear (32) is located at the bottom of the second gear (34), a mounting plate (33) is mounted on the top of the first gear (32), and the second gear (34) and the third gear (35) are both rotatably mounted on the mounting plate (33), the second gear (34) is fixedly connected to the first gear (32), and a motor for driving the first gear (32) to rotate is mounted inside the center platform (31).

7. The automatic detection device for the strength performance of a rope net according to claim 6, characterized in that: The connecting shaft (37) is provided with an inlet and an outlet (39) on both the transverse and longitudinal surfaces of the slot (38), and the protrusion (310) is slidably inserted into the slot (38) along the inlet and outlet (39).

8. The automatic detection device for the strength performance of a rope net according to claim 7, characterized in that: A circular ring (314) is rotatably mounted on the top of the connecting shaft (37) via a bearing, and an extrusion electric push rod (315) is fixed to the side surface of the circular ring (314). The extended end of the extrusion electric push rod (315) passes through the inlet and outlet (39) and is in extrusion contact with the protrusion (310).

9. The automatic detection device for the strength performance of a rope net according to claim 8, characterized in that: The front end of the first connecting rod (312) is rotatably mounted with a second connecting rod (313) via a rotating shaft, and the other end of the second connecting rod (313) is rotatably connected to the side of the ring (314) via the rotating shaft.

10. The automatic detection device for the strength performance of a rope net according to claim 1, characterized in that: An anti-collision plate (23) is installed on the top of the second gear (34) and the third gear (35) of the central platform (31).

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