A spring fatigue detection device with a protective structure

Abstract

The present invention relates to the field of spring detection, and discloses a spring fatigue detection device with a protection structure, including a bottom plate. In the middle of the upper surface of the bottom plate, a motor box is installed. On the upper surface of the bottom plate, outside the motor box, a base is installed. A collection structure is arranged on the base. In the middle of the top end of the motor box, a vertical rod is fastened by bolts. At a position near the top end on the side of the vertical rod, a plurality of first connecting plates are connected. When the rotating plate drives the spring to be detected to rotate to the detection position in the fixed cover for detection, a closed protection structure can be formed by using the baffle plate and the fixed cover, which can play a protective role in the face of the sudden fracture of the spring. And when the moving-out and flipping structure moves, first, the detected spring can be pushed out of the fixed cover for convenient taking. Then, by using the automatic flipping of the moving plate on the moving-out and flipping structure, the fractured spring can be automatically poured into the collection structure for automatic collection, making the operation more labor-saving and convenient.

Description

[0001] This application is a divisional application of the application with the application number 2024111242811, the application date of August 16, 2024, and the invention name of "A Device for Detecting Spring Fatigue". Technical Field

[0002] The present invention relates to the technical field of spring detection, and in particular to a device for detecting spring fatigue with a protective structure. Background Art

[0003] A spring is a mechanical part that uses elasticity to work. A part made of elastic material deforms under the action of an external force and returns to its original state after the external force is removed. It is also called a "spring", generally made of spring steel. Springs are of various types and complexities. Classified by shape, they mainly include helical springs, scroll springs, leaf springs, special-shaped springs, etc. After production, fatigue detection equipment is needed to detect the fatigue of springs.

[0004] In the existing fatigue detection equipment, the electric telescopic rod in the adjustment mechanism drives the vertical plate to move. The vertical plate slides in the sliding rod. The vertical plate drives the cylinder to move. The cylinder drives the vertical column to slide in the detection equipment body. The vertical column drives the lower cross plate to rise to adjust the height of the lower cross plate. When detecting the fatigue of spring bodies of different heights, it is not necessary for workers to operate. The corresponding mechanical structure is driven by the electric telescopic rod to adjust, which improves the automation degree of the detection equipment.

[0005] However, during the detection process, there is a situation where the spring suddenly breaks. Although there is a protective structure in the detection equipment to block the broken spring to reduce the safety risk, the elastic waste generated by the breakage still remains on the detection table of the equipment. Then, it is necessary to manually clean and collect the broken spring. In this way, when detecting a large number of springs, the workload of workers is increased, which is time-consuming and laborious, and the work efficiency is reduced. Therefore, there are areas for improvement. Summary of the Invention

[0006] In order to solve the problems raised in the above background art, the present invention provides a device for detecting spring fatigue with a protective structure.

[0007] The device for detecting spring fatigue with a protective structure provided by the present invention adopts the following technical solutions:

[0008] A spring fatigue detection device with a protective structure, comprising a bottom plate. In the middle of the upper surface of the bottom plate, a motor box is installed. On the upper surface of the bottom plate, outside the motor box, a base is installed. A collection structure is arranged on the base. In the middle of the top end of the motor box, a vertical rod is fastened by bolts. At a position near the top end on the side surface of the vertical rod, a plurality of first connecting plates are connected. The plurality of first connecting plates are circumferentially and equally angularly distributed on the vertical rod. One end of each of the plurality of first connecting plates away from the vertical rod is connected to the inner wall of a fixed cover. The fixed cover is in the shape of an empty ring. On the lower inner wall of the fixed cover, a rotating plate is movably arranged. The rotating plate is in the shape of a ring. A driving structure is arranged between the motor box and the rotating plate. At the top end of the vertical rod, a detection structure is arranged;

[0009] On one side surface of the fixed cover away from the vertical rod, a plurality of openings are opened and are circumferentially and equally angularly distributed. On one side surface of the fixed cover away from the vertical rod, a plurality of transparent windows are installed. The transparent windows and the openings are arranged at intervals. At a position on the rotating plate near the openings, a moving-out and flipping structure is arranged. Between the lower surface of the rotating plate and the base, a supporting structure is arranged;

[0010] The moving-out and flipping structure includes a detection plate installed at a position on the rotating plate near the openings. On one side surface of the detection plate away from the vertical rod, a first groove is opened. On the detection plate, a moving-out groove communicating with the first groove is opened. On opposite inner groove walls of the moving-out groove, sliding grooves are opened. In the sliding grooves, sliding blocks are slidably arranged. Between each pair of the two sliding blocks, a moving bar is connected. On the lower surface of the moving bar, on the side away from the vertical rod, a second groove is opened. Between the two end groove walls of the second groove, a rotating shaft is rotatably connected. In the middle of the rotating shaft, a moving plate is movably sleeved;

[0011] On the rotating plate, on both sides of each detection plate, baffles are connected;

[0012] On the supporting structure, a pushing and pulling structure for driving one side of the moving bar is arranged.

[0013] Preferably, the pushing and pulling structure includes a plurality of through holes opened at positions on the inner wall of the fixed cover close to each detection plate. A driving bar is movably inserted through each through hole. One end of each driving bar is respectively connected to the corresponding moving bar, and a driving plate is connected to the other end of each driving bar. A first guiding groove is opened at a position close to the lower part of each driving plate, and a second guiding groove is opened at a position close to the upper part of each driving plate. The bottom end of the second guiding groove communicates with the top end of the first guiding groove. Both the first guiding groove and the second guiding groove are in an "S" shape. A driving ring is movably inserted through the bottom ends of the plurality of first guiding grooves. A plurality of second connecting plates are fixedly sleeved on the driving ring. The lower surface of each second connecting plate is respectively connected to the top end of the output shaft of the corresponding electric telescopic rod. The bottom end of the electric telescopic rod is installed on the support structure.

[0014] Preferably, the collection structure includes a plurality of storage grooves opened on the side surface of the base. The storage grooves are arranged corresponding to the openings. A collection box is movably inserted into each storage groove. A handle is installed on the side surface of the collection box away from the base.

[0015] Preferably, a plurality of knocking rods are connected to the edge of the lower surface of the rotating plate. Each knocking rod is arranged corresponding to the opening. A spherical knocking block is installed at one end of each knocking rod.

[0016] Preferably, the driving structure includes a motor installed in the motor box. A rotating block is connected to the top end of the output shaft of the motor passing through the top end of the motor box. The rotating block is inserted into a bottom groove opened at the bottom end of the vertical rod. Two connecting rods are connected to the rotating block. Both connecting rods movably pass through the bottom groove. The top ends of the connecting rods are connected to the rotating plate. A through groove for the connecting rods to pass through is opened at the middle position of the lower surface of the fixed cover.

[0017] Preferably, the support structure includes an annular groove opened at the edge of the upper surface of the base. A rotating ring is movably inserted into the annular groove. The top end of the rotating ring is connected to a support ring. A plurality of support rods are connected to the upper surface of the support ring. The top ends of each support rod are connected to the rotating plate.

[0018] Preferably, the detection structure includes a top plate connected to the top end of the vertical rod. A cylinder is installed on the upper surface of the top plate. The top end of the output shaft of the cylinder is connected to a lifting block. A lifting rod is connected to the side surface of the lifting block corresponding to each transparent window. A detection block is connected to the bottom end of each lifting rod. The detection block movably passes through the upper surface of the fixed cover. A first limiting block is connected to the middle position of the lower surface of each detection block.

[0019] Preferably, a second limiting block is connected to the middle position of the upper surface of each moving plate. The second limiting block has the same size as the first limiting block.

[0020] In summary, the present invention includes the following beneficial technical effects:

[0021] 1. The present invention is provided with a moving and flipping structure and a collecting structure, and a baffle is arranged on the rotating plate of the moving and flipping structure. The rotating plate is arranged in the fixed cover, so that when the rotating plate drives the spring to be detected to rotate to the detection position in the fixed cover for detection, a closed protection structure can be formed by the baffle and the fixed cover. In the case of sudden fracture of the spring, it can play a protective role. And when the moving and flipping structure moves, first, the detected spring can be pushed out of the fixed cover, which is convenient for taking. Then, by the automatic flipping of the moving plate on the moving and flipping structure, the fractured spring can be automatically poured into the collecting structure for automatic collection, and the operation is more labor-saving and convenient;

[0022] 2. The present invention is provided with a pushing and pulling structure. By using the pushing and pulling structure, the moving plate can be automatically pushed out of the fixed cover first. At this time, the moving plate is in a horizontal state, which is convenient for taking the spring on the moving plate. And then by using the pushing and pulling structure, the moving plate is continuously pushed out, and with the automatic gravity action of the moving plate, the moving plate can automatically turn down to pour out and collect the fractured spring. And a knocking rod and a knocking block are arranged at the lower part of the rotating plate, so that when the moving plate turns down, it hits the knocking block, and the vibration generated on the moving plate is used to shake off the debris adhering to the moving plate, so that the fractured spring can be cleaned more thoroughly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a spring fatigue detection device with a protection structure in an embodiment of the present invention;

[0024] Figure 2 is a schematic structural diagram of the collecting structure in an embodiment of the present invention;

[0025] Figure 3 is a schematic structural diagram of the base after disassembly in an embodiment of the present invention;

[0026] Figure 4 is a schematic structural diagram of the fixed cover in an embodiment of the present invention;

[0027] Figure 5 is a schematic structural diagram of the rotating plate, the pushing and pulling structure and the driving structure in an embodiment of the present invention;

[0028] Figure 6 is in an embodiment of the present invention Figure 5 enlarged view of the structure at A;

[0029] Figure 7 is the structure of the moving bar and the moving plate in an embodiment of the present invention;

[0030] Figure 8It is a schematic structural diagram of the area below the moving bar and the moving plate in the embodiment of the present invention.

[0031] Explanation of reference numerals: 1, bottom plate; 2, base; 3, motor box; 4, vertical rod; 5, fixed cover; 6, first connecting plate; 7, opening; 8, rotating plate; 9, transparent window; 10, detection plate; 11, first groove; 12, moving plate; 13, moving bar; 14, slider; 15, rotating shaft; 16, second groove; 17, baffle; 18, through hole; 19, driving bar; 20, driving plate; 21, first guiding groove; 22, second guiding groove; 23, driving ring; 24, electric telescopic rod; 25, second connecting plate; 26, storage groove; 27, collection box; 28, handle; 29, knocking rod; 30, knocking block; 31, rotating block; 32, connecting rod; 33, bottom groove; 34, passing-through groove; 35, support rod; 36, support ring; 37, annular groove; 38, rotating ring; 39, top plate; 40, lifting block; 41, lifting rod; 42, detection block; 43, cylinder; 44, first limiting block; 45, second limiting block; 46, moving-out groove. Detailed implementation manners

[0032] The following will Figures 1-8 further describe the present invention in detail.

[0033] Referring to Figures 1-8 , an embodiment of the present invention discloses a spring fatigue detection device with a protection structure, including a bottom plate 1. A motor box 3 is installed at the middle position on the upper surface of the bottom plate 1. A base 2 is installed on the upper surface of the bottom plate 1 outside the motor box 3. A collection structure is arranged on the base 2. The top middle position of the motor box 3 is fastened with a vertical rod 4 by bolts. Multiple first connecting plates 6 are connected to the side of the vertical rod 4 near the top. The multiple first connecting plates 6 are circumferentially and equally angularly distributed on the vertical rod 4. One ends of the multiple first connecting plates 6 far from the vertical rod 4 are all connected to the inner wall of the fixed cover 5. The fixed cover 5 is in an annular shape with a hollow inside. A rotating plate 8 is movably arranged on the lower inner wall of the fixed cover 5. The lower surface of the rotating plate 8 is closely attached to the lower inner wall of the fixed cover 5. The rotating plate 8 is in an annular shape. A driving structure is arranged between the motor box 3 and the rotating plate 8. A detection structure is arranged at the top of the vertical rod 4;

[0034] A plurality of openings 7 that are circumferentially and equally angularly distributed are formed on one side surface of the fixed cover 5 far from the vertical rod 4. A plurality of transparent windows 9 are installed on one side surface of the fixed cover 5 far from the vertical rod 4. The transparent windows 9 are made of tempered glass. The transparent windows 9 and the openings 7 are arranged at intervals from each other. A moving-out and flipping structure is arranged at the position on the upper surface of the rotating plate 8 near the openings 7. A support structure is arranged between the lower surface of the rotating plate 8 and the base 2;

[0035] The moving-out flipping structure includes a detection plate 10 installed on the rotating plate 8 near the opening 7, a first groove 11 is provided on the side of the detection plate 10 away from the vertical rod 4, a moving-out groove 46 connected to the first groove 11 is provided on the detection plate 10, two inner groove walls opposite to the moving-out groove 46 are provided with sliding grooves, sliders 14 are slidably provided in the sliding grooves, a moving bar 13 is connected between the two sliders 14 of each group, a second groove 16 is provided on the side away from the vertical rod 4 below the moving bar 13, a rotating shaft 15 is rotatably connected between the groove walls at both ends of the second groove 16, a moving plate 12 is movably sleeved in the middle of the rotating shaft 15, and a blocking edge is provided on the edge of the moving plate 12, so that when the rotating plate 8 drives the moving plate 12 to rotate out to the opening 7 in the fixed cover 5, The broken spring and the generated debris can be shielded to reduce the rolling of the spring on the rotating moving plate 12. When it is necessary to clean the broken spring after detection, first, the moving plate 12 can be pushed out from the opening 7 by sliding the slider 14 in the slide groove. At this time, since the moving plate 12 is supported in the first groove 11, the moving plate 12 is in a horizontal state. In this way, Fang Boyi takes the tested spring from the moving plate 12. When the moving plate 12 continues to be moved, the moving plate 12 is pushed out from the first groove 11. At this time, the moving plate 12 loses support. Under the action of the gravity of the moving plate 12 itself, the moving plate 12 flips downward with the rotating shaft 15 as the axis, and then the broken spring is automatically poured out and collected, so as to realize the automatic cleaning of the broken spring.

[0036] Baffles 17 are connected to both sides of each detection plate 10 on the rotating plate 8. When the rotating plate 8 drives the moving plate 12 and the spring to be detected to rotate to the detection position in the fixed cover 5, the closed space formed by the baffles 17 and the fixed cover 5 can shield the broken spring during detection, thereby realizing the safety protection function;

[0037] The support structure is provided with a push-pull structure for driving one side of the moving bar 13 .

[0038] See also Figures 1-8, The push-pull structure includes a plurality of through openings 18 formed in the inner wall of the fixed cover 5 near each detection plate 10. A driving strip 19 is movably inserted through each through opening 18. The side surface of the driving strip 19 is closely attached to the inner wall of the through opening 18. One end of each driving strip 19 is respectively connected to the corresponding moving strip 13. A driving plate 20 is connected to the other end of each driving strip 19. A first guiding groove 21 is formed near the lower position of each driving plate 20, and a second guiding groove 22 is formed near the upper position of each driving plate 20. The bottom end of the second guiding groove 22 communicates with the top end of the first guiding groove 21. Both the first guiding groove 21 and the second guiding groove 22 are in an "S" shape. A driving ring 23 is movably inserted through the bottom ends of the plurality of first guiding grooves 21. A plurality of second connecting plates 25 are fixedly sleeved on the driving ring 23. The lower surface of each second connecting plate 25 is respectively connected to the top end of the output shaft of the corresponding electric telescopic rod 24. The bottom end of the electric telescopic rod 24 is installed on the support structure. When pushing out the moving plate 12, the electric telescopic rod 24 can be started to drive the driving ring 23 to move upward. When the driving ring 23 slides upward in the first guiding groove 21, by the extrusion of the driving ring 23 on the groove wall of the first guiding groove 21, the driving plate 20 is pushed to move, and then the moving strip 13 and the moving plate 12 as a whole are driven by the driving strip 19 to move toward the side away from the vertical rod 4, so as to push out the moving plate 12 and the detected spring from the opening 7, which is convenient for taking out the detected spring on the moving plate 12. When it is necessary to clean the broken spring, the electric telescopic rod 24 continues to drive the driving ring 23 to move upward. By using the upward sliding of the driving ring 23 in the second guiding groove 22, through the extrusion of the driving ring 23 on the groove wall of the second guiding groove 22, the moving plate 12 and the moving strip 13 are continuously pushed to move. When the moving plate 12 moves out of the first groove 11, the moving plate 12 loses support. At this time, under the action of the gravity of the moving plate 12 itself, the moving plate 12 automatically turns down, so as to pour out and collect the broken spring and the generated debris, and the operation is more labor-saving and convenient;

[0039] The collection structure includes a plurality of storage grooves 26 formed on the side surface of the base 2. The storage grooves 26 are arranged corresponding to the opening 7. A collection frame 27 is movably inserted into each storage groove 26. A handle 28 is installed on the side surface of the collection frame 27 away from the base 2. The collection frame 27 is arranged corresponding to the opening 7, so that when the moving plate 12 turns down to pour out the broken spring and debris, the collection frame 27 can collect the broken spring and debris, and it is convenient to pull out the collection frame 27 from the storage groove 26 by using the handle 28, which is convenient for centralized treatment of the collected broken spring and debris;

[0040] A plurality of knocking rods 29 are connected to the lower edge of the rotating plate 8. Each knocking rod 29 is arranged corresponding to the position of the opening 7. A spherical knocking block 30 is installed at one end of each knocking rod 29. When the moving plate 12 rotates downward, the moving plate 12 impacts the knocking block 30. By using the vibration generated during the impact, the debris adhered to the moving plate 12 can be shaken off, making the cleaning of the moving plate 12 more thorough.

[0041] See Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the driving structure includes a motor installed in the motor box 3. The output shaft of the motor passes through the top end of the motor box 3 and is connected with a rotating block 31. The rotating block 31 is inserted into a bottom groove 33 opened at the bottom end of the vertical rod 4. Two connecting rods 32 are connected to the rotating block 31. Both of the two connecting rods 32 pass through the bottom groove 33 movably. The top ends of the connecting rods 32 are connected to the rotating plate 8. A passing groove 34 for the connecting rods 32 to pass through is opened at the middle of the lower surface of the fixed cover 5. When the motor in the motor box 3 is started to drive the rotating plate 8 at one end of the connecting rods 32 to rotate, the spring on the moving plate 12 can be rotated into the detection position in the fixed cover 5, and the detected spring can be automatically rotated out to the opening 7 for blanking; the supporting structure includes an annular groove 37 opened at the edge of the upper surface of the base 2. A rotating ring 38 is inserted into the annular groove 37 movably. The top end of the rotating ring 38 is connected with a supporting ring 36. A plurality of supporting rods 35 are connected to the upper surface of the supporting ring 36. The top ends of each of the supporting rods 35 are connected to the rotating plate 8. When the rotating plate 8 rotates, it drives the supporting rods 35 and the supporting ring 36 to rotate as a whole, increasing the supporting stability of the rotating plate 8, so as to better detect the spring. And the electric telescopic rod 24 is installed on the supporting ring 36, so that the electric telescopic rod 24 can rotate synchronously with the rotating plate 8, so as to smoothly push out or pull in the moving plate 12; the detection structure includes a top plate 39 connected to the top end of the vertical rod 4. A cylinder 43 is installed on the upper surface of the top plate 39. The top end of the output shaft of the cylinder 43 is connected with a lifting block 40. Lifting rods 41 are connected to the side surface of the lifting block 40 corresponding to the position of each transparent window 9. The bottom end of each lifting rod 41 is connected with a detection block 42. The detection block 42 passes through the upper surface of the fixed cover 5 movably. A first limiting block 44 is connected to the middle of the lower surface of each detection block 42. When the spring moves to the position directly below the detection block 42, the cylinder 43 is started to drive the plurality of detection blocks 42 to move downward, and the fatigue degree of the plurality of springs is detected at the same time, so as to improve the detection work efficiency; a second limiting block 45 is connected to the middle of the upper surface of each moving plate 12. The second limiting block 45 has the same size as the first limiting block 44. During the detection, the first limiting block 44 and the second limiting block 45 are respectively inserted into the two ends of the spring, avoiding the problem that the spring pops out when pressing the spring for detection, thereby improving the detection work efficiency.

[0042] The implementation principle of an embodiment of the present invention for a spring fatigue detection device with a protection structure is as follows: First, start the electric telescopic rod 24 to drive the driving ring 23 to slide upward in the first guiding groove 21 of the driving plate 20. By squeezing the groove wall of the first guiding groove 21, drive the moving plate 12 on the moving bar 13 to move out from the opening 7 through the driving bar 19. At this time, the moving plate 12 supports on the groove wall of the first groove 11, and the moving plate 12 is in a horizontal state. Then, insert multiple springs to be detected into the second limiting blocks 45 on the moving plate 12 respectively. Then, drive the driving ring 23 to slide downward in the first guiding groove 21 by the electric telescopic rod 24 to pull the moving bar 13 and the moving plate 12 to move backward and reset. When the moving plate 12 is completely inserted into the first groove 11, start the motor in the motor box 3, drive the rotating plate 8 to rotate through the connecting rod 32, so as to rotate the springs on the moving plate 12 to the position of the first limiting block 44. And two baffle plates 17 in each group cooperate with the fixed cover 5 to form a closed space around the moving plate 12, playing a role of safety protection. Then, start the cylinder 43 to drive the lifting block 40, the lifting rod 41 and the detection block 42 to move up and down as a whole, and use the detection block 42 moving up and down to squeeze the springs multiple times to detect the fatigue degree of the springs. And during the detection process, the first limiting block 44 and the second limiting block 45 are respectively inserted into both ends of the spring, which can play a limiting role at both ends of the spring, reduce the problem that the spring pops out due to shape change during the detection process, and improve the detection work efficiency. After the detection, the motor drives the rotating plate 8 to rotate in the reverse direction to drive the moving plate 12 to move back to the position of the opening 7 again, and start the electric telescopic rod 24 to drive the driving ring 23 to slide upward in the first guiding groove 21, pushing the moving plate 12 and the moving bar 13 to slide in the first groove 11 as a whole to push the moving plate 12 out from the opening 7. At this time, the staff can manually take out the springs that have been detected and not broken on the moving plate 12. Then, drive the driving ring 23 to slide upward in the second guiding groove 22 by the electric telescopic rod 24 to continue to push the moving plate 12 to move. When the moving plate 12 is completely pushed out from the first groove 11, the moving plate 12 loses support, and under the action of its own gravity, the moving plate 12 rotates downward with the rotating shaft 15 as the axis to pour the broken springs on the moving plate 12 into the corresponding collection box 27 below for collection. And during the process of the moving plate 12 turning down, the moving plate 12 hits the knocking block 30, and uses the vibration generated on the moving plate 12 to shake off the spring debris adhering to the moving plate 12 into the collection box 27 for collection, realizing the automatic collection function of the broken springs, and the operation is more labor-saving and convenient.

[0043] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A spring fatigue detection device with a protective structure, comprising a base plate (1), characterized in that: A motor box (3) is installed in the middle of the upper part of the bottom plate (1); a base (2) is installed on the upper part of the bottom plate (1) at the outer side of the motor box (3); a collecting structure is arranged on the base (2); a vertical rod (4) is fastened with bolts in the middle of the top of the motor box (3); a plurality of first connecting plates (6) are connected to the side of the vertical rod (4) near the top; the plurality of first connecting plates (6) are distributed at equal angles on the circumference of the vertical rod (4); the ends of the plurality of first connecting plates (6) away from the vertical rod (4) are connected to the inner wall of a fixed cover (5); the fixed cover (5) is in the shape of a hollow ring; a rotating plate (8) is movably arranged on the lower inner wall of the fixed cover (5); the rotating plate (8) is in the shape of a ring; a driving structure is arranged between the motor box (3) and the rotating plate (8); a detection structure is arranged at the top of the vertical rod (4); A plurality of openings (7) distributed at equal angles around the circumference are provided on a side surface of the fixed cover (5) away from the vertical rod (4); a plurality of transparent windows (9) are installed on a side surface of the fixed cover (5) away from the vertical rod (4); the transparent windows (9) and the openings (7) are arranged at intervals; a moving-out flipping structure is provided on the upper surface of the rotating plate (8) near the openings (7); and a supporting structure is provided between the lower surface of the rotating plate (8) and the base (2); The removal and flipping structure comprises a detection plate (10) mounted on the rotating plate (8) near the opening (7); a first groove (11) is provided on a side of the detection plate (10) away from the vertical rod (4); a removal groove (46) connected to the first groove (11) is provided on the detection plate (10); two inner groove walls opposite to the removal groove (46) are provided with sliding grooves; a slider (14) is slidably arranged in the sliding groove; a moving bar (13) is connected between the two sliders (14) in each group; a second groove (16) is provided below the moving bar (13) on a side away from the vertical rod (4); a rotating shaft (15) is rotatably connected between the groove walls at both ends of the second groove (16); a moving plate (12) is movably sleeved in the middle of the rotating shaft (15); Baffles (17) are connected to both sides of each detection plate (10) on the rotating plate (8); The support structure is provided with a push-pull structure for driving one side of the moving bar (13); The detection structure comprises a top plate (39) connected to the top of the vertical rod (4), a cylinder (43) is installed on the top of the top plate (39), a lifting block (40) is connected to the top of the output shaft of the cylinder (43), a lifting rod (41) is connected to the side of the lifting block (40) at a position corresponding to each transparent window (9), a detection block (42) is connected to the bottom end of each lifting rod (41), the detection block (42) movably passes through the top of the fixed cover (5), and a first limit block (44) is connected to the middle of the bottom of each detection block (42); The collecting structure comprises a plurality of receiving grooves (26) provided on the side of the base (2), the receiving grooves (26) being arranged at positions corresponding to the openings (7), a collecting frame (27) being movably inserted into each of the receiving grooves (26), and a handle (28) being installed on a side surface of the collecting frame (27) away from the base (2); A plurality of knocking rods (29) are connected to the lower edge of the rotating plate (8), each of the knocking rods (29) is arranged at a position corresponding to the opening (7), and a spherical knocking block (30) is installed on one end of each of the knocking rods (29).

2. The spring fatigue detection device with a protective structure according to claim 1, characterized in that: The driving structure comprises a motor installed in a motor box (3); a rotating block (31) is connected to the top of the motor output shaft passing through the motor box (3); the rotating block (31) is inserted into a bottom groove (33) provided at the bottom end of the vertical rod (4); two connecting rods (32) are connected to the rotating block (31); both connecting rods (32) are movably passed through the bottom groove (33); the top ends of the connecting rods (32) are connected to the rotating plate (8); and a passing groove (34) for the connecting rods (32) to pass through is provided in the middle of the lower side of the fixed cover (5).

3. The spring fatigue detection device with a protective structure according to claim 2 is characterized in that: A second limit block (45) is connected to the middle of the upper side of each movable plate (12), and the second limit block (45) has the same size as the first limit block (44).

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