Electrician safety belt force sensor detection device

Abstract

The invention belongs to the technical field of mechanical sensors, and particularly relates to an electrician safety belt force sensor detection device which comprises a detection cabinet, and a cabinet door is hinged to the front side of the detection cabinet. The device further comprises an impact strength detection mechanism, an active lifting mechanism, a pushing in-place mechanism, an elongation exceeding warning mechanism, an impact tension exceeding warning mechanism and a detection sensor proofreading trigger mechanism. According to the invention, rapid and automatic detection of the impact strength of the electrician safety belt can be realized, the detection quality and efficiency are effectively improved, whether the quality of the safety belt is qualified can be accurately determined through rapid analysis of the elongation and impact force of the safety belt, the detection process is automatically propelled after the impact force is applied, the detection work is ensured to be coherent and efficient, and the detection efficiency is improved. Meanwhile, a worker can be reminded in time to confirm the precision of the tension sensor, the proofreading frequency can be intelligently regulated and controlled according to the impact force borne by the sensor, proofreading timeliness and sensor protection are both considered, detection data misalignment is avoided, and the reliability of a detection result is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of mechanical sensor technology, and in particular relates to a force sensor detection device for electrical safety belts. Background Technology

[0002] Electrician safety belts are safety devices used to prevent falls during electrical work. They effectively protect electricians from accidental injuries when working at heights, preventing injuries and fatalities caused by falls. They are an important line of defense for the safety of electricians.

[0003] After the production of electrical safety belts is completed, quality spot checks are required. The impact resistance of electrical safety belts is an important testing aspect. After applying a fixed impact force to the safety belt, the elongation rate of the safety belt is observed to see if it is within the allowable threshold range. If it exceeds the set threshold, it means that the quality of the tested safety belt is unqualified. However, this testing method requires adding a step to test the elongation rate of the safety belt after the impact force testing equipment. This is not only cumbersome to operate, but also increases the testing cost, prolongs the testing time, and affects the testing efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing an electrical safety belt force sensor detection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electrical safety belt force sensor detection device, comprising a detection cabinet, wherein a cabinet door is hinged to the front side of the detection cabinet, and further comprising:

[0006] The impact resistance testing mechanism is fixedly installed inside the testing cabinet.

[0007] An active lifting mechanism is fixedly installed on the inner wall of the testing cabinet and connected to the impact strength testing mechanism;

[0008] The pushing mechanism is fixedly installed on the rear side of the bottom of the inner wall of the testing cabinet;

[0009] An elongation exceeding the standard warning mechanism is fixedly installed at the upper end of the jacking mechanism and is connected to the jacking mechanism in a transmission manner.

[0010] An impact tensile strength exceeding the standard warning mechanism is fixedly installed at the top of the testing cabinet and electrically connected to the impact strength testing mechanism;

[0011] The detection sensor calibration trigger mechanism is fixedly installed on the outer wall of the detection cabinet and electrically connected to the impact and tensile force exceeding the standard warning mechanism.

[0012] In the above-mentioned electrical safety belt force sensor detection device, the impact strength detection mechanism includes a tension sensor fixedly installed on the upper end of the detection cabinet. Multiple guide slide rods are symmetrically fixedly connected to the inner wall of the detection cabinet. The multiple guide slide rods are slidably sleeved with the same pull-down plate. A counterweight is embedded in the pull-down plate. A connecting frame is fixedly connected to the lower force-bearing end of the tension sensor and the upper end of the pull-down plate.

[0013] In the aforementioned electrical safety belt force sensor detection device, the active lifting mechanism includes two symmetrically rotatably connected to the inner wall of the detection cabinet. A bidirectional motor drive assembly for driving the two rotatable screws to rotate synchronously is fixedly installed at the lower end of the detection cabinet. A lifting seat is threaded onto the wall of each rotatable screw. A connecting shell is fixedly connected to the side wall of the lifting seat. Connecting plates located on one side of the connecting shell are fixedly connected to both ends of the pull-down plate. Multiple locking rods are symmetrically and movably inserted into the side of the connecting shell near the connecting plate. Multiple locking holes matching and inserting with the locking rods are opened on the side wall of the connecting plate. One end of each locking rod located inside the connecting shell is fixedly connected to the same pull-back plate. Multiple return springs sleeved outside the locking rods are fixedly connected between the pull-back plate and the connecting shell. A permanent magnet plate is fixedly connected to the side of the pull-back plate away from the locking rods. A magnetic electromagnetic plate, opposite to the permanent magnet plate, is fixedly installed on the inner wall of the connecting shell.

[0014] In the aforementioned electrical safety belt force sensor detection device, the push-in mechanism includes a vertical plate fixedly installed on the rear side of the bottom wall of the detection cabinet. Two electric push rods are fixedly inserted into the side wall of the vertical plate. The moving ends of the two electric push rods are fixedly connected to the same mounting shell. The front side of the mounting shell is an open structure. A vertically arranged drive screw is rotatably connected to the inner wall of the mounting shell. A drive motor for driving the drive screw to rotate is fixedly installed at the lower end of the mounting shell. An L-shaped extension plate is threaded onto the rod wall of the drive screw. Two push plates are symmetrically fixedly connected to the lower front side of the extension plate. A pressure sensor is fixedly installed at the upper end of the push plate. A limiting slide rod parallel to the drive screw is also fixedly connected to the inner wall of the mounting shell. A sliding hole is opened on the surface of the extension plate to slide and engage with the limiting slide rod.

[0015] In the aforementioned electrical safety belt force sensor detection device, the elongation rate exceeding warning mechanism includes a reduction gearbox fixedly installed on the upper end of the mounting housing and a trigger housing fixedly connected to the outer wall of the mounting housing. The upper end of the drive screw is fixedly connected to the input end of the reduction gearbox. A linkage shaft is rotatably connected to the center of the inner wall of the trigger housing. The upper end of the linkage shaft is connected to the output end of the reduction gearbox via a magnetic connection assembly. An outer expansion plate is fixedly sleeved on the lower end of the linkage shaft. A torsion spring sleeved on the outside of the linkage shaft is fixedly connected to the lower end of the outer expansion plate and the bottom of the inner wall of the trigger housing. A warning switch is fixedly installed on one side of the inner wall of the trigger housing. An arc-shaped trigger block is fixedly connected to the shaft wall of the linkage shaft.

[0016] In the aforementioned electrical safety belt force sensor detection device, the impact tensile force exceeding the standard warning mechanism includes a warning shell. Multiple parallel positioning slide rods are fixedly connected to the inner wall of the warning shell. A single sliding plate is slidably sleeved around each of the multiple positioning slide rods. Multiple return springs sleeved around the positioning slide rods are fixedly connected between the sliding plate and the warning shell. A thrust permanent magnet plate is fixedly connected to the side wall of the sliding plate. A thrust electromagnetic plate, opposite to the thrust permanent magnet plate, is fixedly installed on the inner wall of the warning shell. A confirmation switch is fixedly installed on the upper side of the inner wall of the warning shell. A pressing head is fixedly connected to the upper end of the sliding plate. A feedback resistor rod, parallel to the positioning slide rods, is fixedly installed on the lower side of the inner wall of the warning shell. A feedback conductive contact piece, electrically contacting the feedback resistor rod, is fixedly connected to the lower end of the sliding plate.

[0017] In the above-mentioned electrical safety belt force sensor detection device, the detection sensor calibration triggering mechanism includes a calibration shell, a synchronous screw is rotatably connected to the inner wall of the calibration shell, a synchronous motor for driving the synchronous screw to rotate is fixedly installed on the outer wall of the calibration shell, a synchronous plate is threaded onto the rod wall of the synchronous screw, and an indication switch opposite to the synchronous plate is fixedly installed at the bottom of the inner wall of the calibration shell.

[0018] In the above-mentioned electrical safety belt force sensor detection device, the outer wall of the lifting seat is fixedly connected to a limit slider, and the inner wall of the detection cabinet is provided with a limit groove that matches and slides with the limit slider.

[0019] Compared with existing technologies, the advantages of this invention are as follows:

[0020] 1. Through the set testing cabinet, impact strength testing mechanism, active lifting mechanism, and push-in mechanism, the impact strength of electrical safety belts can be quickly tested. The entire testing operation is highly automated, effectively improving testing quality and efficiency.

[0021] 2. With the set push-in mechanism, elongation rate exceeding warning mechanism, and impact tensile force exceeding warning mechanism, the safety belt can be quickly judged as qualified based on its elongation rate and the magnitude of the impact force after impact force is applied to it. Furthermore, the corresponding detection operations can be performed quickly and automatically after the impact force is applied, making the detection work more continuous, effectively improving detection efficiency, and saving detection costs.

[0022] 3. Through the set detection sensor calibration trigger mechanism, after the quality inspection of multiple seat belts, it can promptly remind the staff to confirm the detection accuracy of the tension sensor. This avoids the problem that long-term testing work will cause inaccurate data acquisition from the tension sensor, thus affecting the accuracy of the entire testing work. In addition, it can automatically adjust the calibration frequency of the tension sensor based on the magnitude of the impact force it receives each time. This avoids the problem that excessive impact force will have a significant impact on the tension sensor, and that relatively long intervals of calibration work cannot meet the timeliness of calibration. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a frontal sectional view of the present invention;

[0025] Figure 3 This is a schematic diagram of the impact strength testing mechanism of the present invention;

[0026] Figure 4 This is a schematic diagram of the active lifting mechanism of the present invention;

[0027] Figure 5 yes Figure 4 Enlarged view of part of the image;

[0028] Figure 6 This is a side view of the jacking mechanism of the present invention.

[0029] Figure 7 This is a cross-sectional structural schematic diagram of the elongation exceeding the standard warning mechanism of the present invention;

[0030] Figure 8 This is a cross-sectional structural schematic diagram of the impact tensile force exceeding the standard warning mechanism of the present invention;

[0031] Figure 9 This is a cross-sectional structural schematic diagram of the detection sensor calibration triggering mechanism of the present invention.

[0032] In the diagram: 1. Testing cabinet; 2. Impact strength testing mechanism; 21. Tensile sensor; 22. Guide slide rod; 23. Pull-down plate; 24. Counterweight; 25. Connecting frame; 3. Active lifting mechanism; 31. Rotating screw; 32. Bidirectional motor drive assembly; 33. Lifting seat; 34. Connecting shell; 35. Connecting plate; 36. Locking rod; 37. Locking hole; 38. Pull-back plate; 39. Return spring; 310. Attraction permanent magnet plate; 311. Attraction electromagnetic plate; 4. Push-to-position mechanism; 41. Vertical plate; 42. Electric push rod; 43. Mounting shell; 44. Drive screw; 45. Drive motor; 46. Extension plate; 47. Push plate; 48. Pressure sensor; 49. Limit slide rod. 5. Excessive elongation warning mechanism; 51. Reduction gearbox; 52. Trigger housing; 53. Linkage shaft; 54. Magnetic connection assembly; 55. Outer expansion plate; 56. Torsion spring; 57. Warning switch; 58. Arc-shaped trigger block; 6. Excessive impact and tensile force warning mechanism; 61. Warning housing; 62. Positioning slide rod; 63. Sliding plate; 64. Return spring; 65. Thrust permanent magnet plate; 66. Thrust electromagnetic plate; 67. Confirmation switch; 68. Pressing head; 69. Feedback resistor rod; 610. Feedback conductive contact; 7. Sensor calibration trigger mechanism; 71. Calibration housing; 72. Synchronous screw; 73. Synchronous motor; 74. Synchronous plate; 75. Indication switch; 8. Cabinet door. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] like Figures 1-9 As shown, an electrical safety belt force sensor detection device includes a detection cabinet 1, with a cabinet door 8 hinged to the front side of the detection cabinet 1, and further includes:

[0035] The impact strength testing mechanism 2 is fixedly installed inside the testing cabinet 1. The impact strength testing mechanism 2 includes a tensile sensor 21 fixedly installed on the upper end of the testing cabinet 1. Multiple guide slide rods 22 are symmetrically fixedly connected to the inner wall of the testing cabinet 1. The multiple guide slide rods 22 are slidably sleeved with the same pull-down plate 23. A counterweight block 24 is embedded in the pull-down plate 23. A connecting frame 25 is fixedly connected to the lower force-bearing end of the tensile sensor 21 and the upper end of the pull-down plate 23.

[0036] An active lifting mechanism 3 is fixedly installed on the inner wall of the testing cabinet 1 and connected to the impact strength testing mechanism 2. The active lifting mechanism 3 includes two symmetrically rotatably connected rotating screws 31 to the inner wall of the testing cabinet 1. A bidirectional motor drive assembly 32 for driving the two rotating screws 31 to rotate synchronously is fixedly installed at the lower end of the testing cabinet 1. A lifting seat 33 is threaded onto the rod wall of the rotating screw 31. A connecting shell 34 is fixedly connected to the side wall of the lifting seat 33. Both ends of the pull-down plate 23 are fixedly connected to connecting plates 35 located on one side of the connecting shell 34. Multiple locking rods 36 are symmetrically and movably inserted into the side of the connecting shell 34 near the connecting plate 35. The side wall of the connecting plate 35 is provided with multiple locking holes 37 that are matched and inserted into the locking rods 36. One end of the multiple locking rods 36 located inside the connecting shell 34 is fixedly connected to the same pull-back plate 38. Multiple return springs 39 sleeved on the outside of the locking rods 36 are fixedly connected between the pull-back plate 38 and the connecting shell 34. A magnetic permanent magnet plate 310 is fixedly connected to the side of the pull-back plate 38 away from the locking rods 36. A magnetic electromagnetic plate 311 is fixedly installed on the inner wall of the connecting shell 34 and is arranged opposite to the magnetic permanent magnet plate 310. A limit slider is fixedly connected to the outer wall of the lifting seat 33. A limit groove is provided on the inner wall of the detection cabinet 1 that is matched and slidably connected to the limit slider.

[0037] The push-in mechanism 4 is fixedly installed on the rear side of the bottom of the inner wall of the testing cabinet 1. The push-in mechanism 4 includes a vertical plate 41 fixedly installed on the rear side of the bottom wall of the inner wall of the testing cabinet 1. Two electric push rods 42 are fixedly inserted into the side wall of the vertical plate 41. The moving ends of the two electric push rods 42 are fixedly connected to the same mounting shell 43. The front side of the mounting shell 43 is set as an open structure. The inner wall of the mounting shell 43 is rotatably connected to a vertically arranged drive screw 44. The lower end of the mounting shell 43 is fixedly installed with a drive motor 45 for driving the drive screw 44 to rotate. The rod wall of the drive screw 44 is threaded with an L-shaped extension plate 46. The lower front side of the extension plate 46 is symmetrically fixedly connected with two push plates 47. The upper end of the push plate 47 is fixedly installed with a pressure sensor 48. The inner wall of the mounting shell 43 is also fixedly connected with a limiting slide rod 49 arranged parallel to the drive screw 44. The surface of the extension plate 46 is opened with a sliding hole that slides with the limiting slide rod 49.

[0038] The excessive elongation warning mechanism 5 is fixedly installed on the upper end of the push-in mechanism 4 and is connected to the push-in mechanism 4 in a transmission manner. The excessive elongation warning mechanism 5 includes a reduction gearbox 51 fixedly installed on the upper end of the mounting shell 43 and a trigger round shell 52 fixedly connected to the outer wall of the mounting shell 43. The upper end of the drive screw 44 is fixedly connected to the input end of the reduction gearbox 51. A linkage shaft 53 is rotatably connected at the center of the inner wall of the trigger round shell 52. The upper end of the linkage shaft 53 is connected to the output end of the reduction gearbox 51 in a transmission manner through a magnetic connection assembly 54. An outer expansion plate 55 is fixedly sleeved on the lower end of the linkage shaft 53. A torsion spring 56 sleeved on the outside of the linkage shaft 53 is fixedly connected to the lower end of the outer expansion plate 55 and the bottom of the inner wall of the trigger round shell 52. A warning switch 57 is fixedly installed on one side of the inner wall of the trigger round shell 52. An arc-shaped trigger block 58 is fixedly connected to the shaft wall of the linkage shaft 53.

[0039] An impact tensile strength exceeding standard warning mechanism 6 is fixedly installed at the upper end of the testing cabinet 1 and electrically connected to the impact strength testing mechanism 2. The impact tensile strength exceeding standard warning mechanism 6 includes a warning shell 61. Multiple positioning slide rods 62 arranged side by side are fixedly connected to the inner wall of the warning shell 61. The same sliding plate 63 is slidably sleeved on the outside of the multiple positioning slide rods 62. Multiple return springs 64 sleeved on the outside of the positioning slide rods 62 are fixedly connected between the sliding plate 63 and the warning shell 61. A thrust permanent magnet plate 65 is fixedly connected to the side wall of the sliding plate 63. A thrust electromagnetic plate 66 arranged opposite to the thrust permanent magnet plate 65 is fixedly installed on the inner wall of the warning shell 61. A confirmation switch 67 is fixedly installed on the upper side of the inner wall of the warning shell 61. A pressing round head 68 is fixedly connected to the upper end of the sliding plate 63. A feedback resistor rod 69 arranged parallel to the positioning slide rod 62 is fixedly installed on the lower side of the inner wall of the warning shell 61. A feedback conductive contact 610 that is electrically in contact with the feedback resistor rod 69 is fixedly connected to the lower end of the sliding plate 63.

[0040] The detection sensor calibration trigger mechanism 7 is fixedly installed on the outer wall of the detection cabinet 1 and electrically connected to the impact and tensile force exceeding the standard warning mechanism 6. The detection sensor calibration trigger mechanism 7 includes a calibration shell 71. A synchronous screw 72 is rotatably connected to the inner wall of the calibration shell 71. A synchronous motor 73 for driving the synchronous screw 72 to rotate is fixedly installed on the outer wall of the calibration shell 71. A synchronous plate 74 is threaded onto the rod wall of the synchronous screw 72. A prompt switch 75 is fixedly installed at the bottom of the inner wall of the calibration shell 71, which is opposite to the synchronous plate 74.

[0041] The operating principle of this invention is described as follows: The electrical safety belt to be tested is fixed on two connecting brackets 25. The PLC controller controls the electric push rod 42 in the push-to-position mechanism 4 to push the mounting shell 43 forward, so that the two extension plates 46 move to the lower side of the pull-down plate 23. Then, the drive motor 45 is controlled to drive the drive screw 44 to rotate. Through the threaded connection between the drive screw 44 and the extension plate 46, the extension plate 46 drives the push plate 47 to move upward, so that the push plate 47 is supported on the lower side of the pull-down plate 23, until the extension plate 46 moves to the highest position. At this time, the drive motor 45 can no longer drive the drive screw 44 to rotate. A torque sensor is installed at the output end of the drive motor 45. When the torque sensor reaches the monitoring threshold, the PLC controller controls the drive motor 45 to stop. At this time, the push plate 47 also drives the pull-down plate 23 to a preset height position. At this time, the connecting shell 34 and the connecting plate 35 are positioned opposite each other. During this process of lifting the pull-down plate 23, the PLC controller controls the power supply to supply power to the suction electromagnetic plate 311. The suction electromagnetic plate 311 generates a magnetism opposite to that of the suction permanent magnet plate 310, thereby applying an attractive force to the pull-back plate 38, which in turn causes the pull-back plate 38 to move the locking rod 36 back until the pull-down plate 23 is released. After the height is adjusted to the correct position, the PLC controller cuts off the power supply to the suction electromagnetic plate 311. Under the action of the reset spring 39, the locking rod 36 extends out of the connecting shell 34 and is inserted into the locking hole 37 on the side wall of the connecting plate 35, so that the lifting seat 33 is connected to the pull-down plate 23. At this time, the PLC controller controls the push-to-position mechanism 4 to reset and move, disengaging from the support of the pull-down plate 23. The PLC controller then controls the bidirectional motor drive assembly 32 to operate. The bidirectional motor drive assembly 32 drives the two rotating screws 31 to rotate synchronously, and then the rotating screws 31 and the lifting seat 33 are connected by threaded sleeves. The action synchronously drives the lifting seat 33 and the pull-down plate 23 to move up to the preset detection height. After moving into position, the PLC controller controls the power supply equipment to supply power to the suction electromagnetic plate 311 again, so that the lifting seat 33 is disconnected from the pull-down plate 23. The upper counterweight 24 set on the pull-down plate 23 applies a downward impact force to the electrician's safety belt. The tension sensor 21 records this impact force value. Since the tension sensor 21 is installed at the fixed end of the electrician's safety belt, it can directly measure the reaction force of the electrician's safety belt on the fixed point. Based on Newton's third law, this force is equal in magnitude and opposite in direction to the impact force borne by the electrician's safety belt.

[0042] When the tension sensor 21 finally detects a tension value of zero, it indicates that the electrician's safety belt has broken, and a direct feedback warning signal indicates that the quality of the electrician's safety belt being tested is unqualified.

[0043] In the process of detecting the impact resistance of electrical safety belts, the tension sensor 21 feeds back the detected tension change signal to the PLC controller. Based on the maximum tension signal fed back by the tension sensor 21, the PLC controller controls the power supply to supply power to the thrust electromagnetic plate 66. The thrust electromagnetic plate 66 generates the same magnetism as the thrust permanent magnet plate 65, thereby applying a magnetic thrust to the sliding plate 63. This causes the sliding plate 63 to slide along the positioning slide rod 62 against the elastic force of the return spring 64. The greater the maximum tension signal fed back by the tension sensor 21, the greater the current supplied by the PLC controller to the thrust electromagnetic plate 66, resulting in a greater sliding distance for the sliding plate 63. When the maximum detected tension value of the tension sensor 21 is detected... When the impact force exceeds 6kN, the sliding distance within the sliding plate 63 is sufficient to drive the pressing head 68 to press against the confirmation switch 67. Once the confirmation switch 67 is pressed, a signal is sent to the worker, indicating that the impact force of the electrician's safety belt exceeds the threshold and the safety belt is substandard. This is because electrician's safety belts need to have a certain amount of cushioning performance. When the electrician's safety belt does not effectively cushion the impact, the impact force exceeds 6kN, indicating that the safety belt is too rigid. The upper limit of the instantaneous impact force that the human torso can withstand is 6kN (approximately 612kgf). Exceeding this value can easily lead to rib fractures, internal organ damage, or spinal compression fractures. Therefore, an electrician's safety belt with insufficient cushioning performance is also considered substandard.

[0044] When no electrical safety belt breakage occurs and the impact force of the electrical safety belt exceeds the threshold, the PLC controller controls the push-to-position mechanism 4 to operate. During the upward movement of the push plate 47, when the pressure sensor 48 at the upper end of the push plate 47 contacts the lower side of the pull-down plate 23 and exerts a lifting force on the pull-down plate 23, the PLC controller controls the power supply equipment to supply power to the magnetic connection assembly 54 based on the pressure signal received by the pressure sensor 48. This causes the output end of the reduction gearbox 51 to be connected to the linkage shaft 53. Under the rotation of the drive screw 44, the drive screw 44 drives the input end of the reduction gearbox 51 to rotate, which in turn drives the linkage shaft 53 to rotate synchronously at reduced speed. The linkage shaft 53 overcomes the action of the torsion spring 56 and drives the arc-shaped trigger block 58 to move within the trigger housing 52. When the push plate 47... If the arc-shaped trigger block 58 presses on the warning switch 57 before the pull-down plate 23 is raised to the appropriate height, it indicates that the elongation rate of the tested electrician's safety belt exceeds 35%, indicating that the quality of the tested electrician's safety belt is unqualified. The push plate 47 can raise the pull-down plate 23 again to the height position that needs to be connected with the active lifting mechanism 3, ensuring the accuracy of the active lifting mechanism 3 in use and assisting in the continuous testing of the electrician's safety belt. Here, the electrician's safety belt needs to be replaced manually to achieve the testing of different electrician's safety belts. After the current test is completed, the PLC controller controls the power supply equipment to cut off the power supply to the magnetic connection component 54, so that the linkage shaft 53 drives the arc-shaped trigger block 58 to reset to the initial position under the reset action of the torsion spring 56, waiting for the next test.

[0045] After each test of an electrician's safety belt is completed, the PLC controller controls the synchronous motor 73 to operate for 3 seconds. The synchronous motor 73 drives the synchronous screw 72 to rotate. Through the threaded connection between the synchronous screw 72 and the synchronous plate 74, the synchronous plate 74 moves a certain distance within the calibration housing 71. After multiple tests of the electrician's safety belt, the synchronous plate 74 presses against the indicator switch 75, prompting the operator to check and calibrate the accuracy of the data collected by the tension sensor 21. This prevents the inaccuracy of the data collected by the tension sensor 21 from affecting the accuracy of the feedback on the quality of the electrician's safety belt. The feedback conductive contact 610 and the feedback resistor 69 are connected in series in the power supply circuit of the synchronous motor 73. 3 is a DC motor device. When the impact force on the tension sensor 21 is greater, the sliding plate 63 moves a greater distance, which in turn causes the feedback conductive contact 610 to slide a greater distance on the feedback resistor rod 69. This results in a smaller resistance value of the feedback resistor rod 69, which in turn increases the supply current of the synchronous motor 73 and increases its speed. Within the fixed 3-second working time of the synchronous motor 73, the synchronous plate 74 moves a greater distance. This allows for timely verification and calibration of the data acquisition accuracy of the tension sensor 21 after fewer testing operations. This is because a greater impact force will result in a greater cumulative fatigue effect on the material of the tension sensor 21, requiring more timely verification and calibration to ensure testing quality.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electrical safety belt force sensor detection device, comprising a detection cabinet (1), wherein a cabinet door (8) is hinged to the front side of the detection cabinet (1), characterized in that, Also includes: The impact strength testing mechanism (2) is fixedly installed inside the testing cabinet (1); An active lifting mechanism (3) is fixedly installed on the inner wall of the testing cabinet (1) and connected to the impact strength testing mechanism (2); The push-in mechanism (4) is fixedly installed on the rear side of the bottom of the inner wall of the testing cabinet (1); The elongation rate exceeding the standard warning mechanism (5) is fixedly installed at the upper end of the push-in mechanism (4) and is connected to the push-in mechanism (4) in a transmission manner; The impact tensile strength exceeding the standard warning mechanism (6) is fixedly installed at the upper end of the testing cabinet (1) and electrically connected to the impact strength testing mechanism (2); The detection sensor calibration trigger mechanism (7) is fixedly installed on the outer wall of the detection cabinet (1) and electrically connected to the impact tensile force exceeding the standard warning mechanism (6).

2. The electrical safety belt force sensor detection device according to claim 1, characterized in that, The impact strength testing mechanism (2) includes a tensile sensor (21) fixedly installed on the upper end of the testing cabinet (1). Multiple guide slide rods (22) are symmetrically fixedly connected to the inner wall of the testing cabinet (1). The multiple guide slide rods (22) are slidably sleeved with the same pull-down plate (23). A counterweight (24) is embedded on the pull-down plate (23). A connecting frame (25) is fixedly connected to the lower force-bearing end of the tensile sensor (21) and the upper end of the pull-down plate (23).

3. The electrical safety belt force sensor detection device according to claim 2, characterized in that, The active lifting mechanism (3) includes two symmetrically rotatably connected rotating screws (31) to the inner wall of the testing cabinet (1). A bidirectional motor drive assembly (32) for driving the two rotating screws (31) to rotate synchronously is fixedly installed at the lower end of the testing cabinet (1). A lifting seat (33) is threaded onto the rod wall of the rotating screw (31). A connecting shell (34) is fixedly connected to the side wall of the lifting seat (33). Both ends of the pull-down plate (23) are fixedly connected to connecting plates (35) located on one side of the connecting shell (34). The side of the connecting shell (34) near the connecting plate (35) has multiple locking screws symmetrically inserted. The connecting plate (35) has multiple locking holes (37) on its side wall that are matched and inserted into the locking rod (36). One end of each locking rod (36) located inside the connecting shell (34) is fixedly connected to the same pull-back plate (38). Multiple return springs (39) sleeved on the outside of the locking rod (36) are fixedly connected between the pull-back plate (38) and the connecting shell (34). A magnetic permanent magnet plate (310) is fixedly connected to the side of the pull-back plate (38) away from the locking rod (36). A magnetic electromagnetic plate (311) is fixedly installed on the inner wall of the connecting shell (34) opposite to the magnetic permanent magnet plate (310).

4. The electrical safety belt force sensor detection device according to claim 1, characterized in that, The push-in mechanism (4) includes a vertical plate (41) fixedly installed on the rear side of the bottom wall of the inner wall of the testing cabinet (1). Two electric push rods (42) are fixedly inserted into the side wall of the vertical plate (41). The moving ends of the two electric push rods (42) are fixedly connected to the same mounting shell (43). The front side of the mounting shell (43) is set as an open structure. The inner wall of the mounting shell (43) is rotatably connected to a vertically arranged drive screw (44). The lower end of the mounting shell (43) is fixedly installed with a mechanism for driving the drive screw (44). 4) A self-rotating drive motor (45), the drive screw (44) has an L-shaped extension plate (46) threaded onto its rod wall, and two push plates (47) are symmetrically fixedly connected to the front side of the lower end of the extension plate (46). A pressure sensor (48) is fixedly installed on the upper end of the push plate (47). A limiting slide rod (49) parallel to the drive screw (44) is also fixedly connected to the inner wall of the mounting shell (43). A sliding hole is opened on the surface of the extension plate (46) to slide and engage with the limiting slide rod (49).

5. The electrical safety belt force sensor detection device according to claim 4, characterized in that, The excessive elongation warning mechanism (5) includes a reduction gearbox (51) fixedly installed on the upper end of the mounting shell (43) and a trigger shell (52) fixedly connected to the outer wall of the mounting shell (43). The upper end of the drive screw (44) is fixedly connected to the input end of the reduction gearbox (51). A linkage shaft (53) is rotatably connected to the center of the inner wall of the trigger shell (52). The upper end of the linkage shaft (53) is connected to the output end of the reduction gearbox (51) through a magnetic connection assembly (54). An outer expansion plate (55) is fixedly sleeved on the lower end of the linkage shaft (53). A torsion spring (56) sleeved on the outside of the linkage shaft (53) is fixedly connected to the lower end of the outer expansion plate (55) and the bottom of the inner wall of the trigger shell (52). A warning switch (57) is fixedly installed on one side of the inner wall of the trigger shell (52). An arc-shaped trigger block (58) is fixedly connected to the shaft wall of the linkage shaft (53).

6. The electrical safety belt force sensor detection device according to claim 1, characterized in that, The impact tensile force exceeding the standard warning mechanism (6) includes a warning shell (61). Multiple positioning slide rods (62) arranged side-by-side are fixedly connected to the inner wall of the warning shell (61). A sliding plate (63) is slidably sleeved around each of the multiple positioning slide rods (62). Multiple return springs (64) sleeved around the positioning slide rods (62) are fixedly connected between the sliding plate (63) and the warning shell (61). A thrust permanent magnet plate (65) is fixedly connected to the side wall of the sliding plate (63). The warning shell (61)... A thrust electromagnetic plate (66) is fixedly installed on the inner wall, which is opposite to the thrust permanent magnet plate (65). A confirmation switch (67) is fixedly installed on the upper side of the inner wall of the warning shell (61). A pressing round head (68) is fixedly connected to the upper end of the sliding plate (63). A feedback resistor rod (69) is fixedly installed on the lower side of the inner wall of the warning shell (61) and is parallel to the positioning slide rod (62). A feedback conductive contact (610) that is electrically in contact with the feedback resistor rod (69) is fixedly connected to the lower end of the sliding plate (63).

7. The electrical safety belt force sensor detection device according to claim 1, characterized in that, The detection sensor calibration trigger mechanism (7) includes a calibration shell (71), a synchronous screw (72) is rotatably connected to the inner wall of the calibration shell (71), a synchronous motor (73) for driving the synchronous screw (72) to rotate is fixedly installed on the outer wall of the calibration shell (71), a synchronous plate (74) is threaded onto the rod wall of the synchronous screw (72), and a prompt switch (75) is fixedly installed at the bottom of the inner wall of the calibration shell (71) opposite to the synchronous plate (74).

8. The electrical safety belt force sensor detection device according to claim 3, characterized in that, The outer wall of the lifting seat (33) is fixedly connected to a limiting slider, and the inner wall of the detection cabinet (1) is provided with a limiting groove that matches and slides with the limiting slider.

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