Aviation safety belt comprehensive performance testing device

Abstract

A comprehensive performance testing device for an aviation safety belt relates to the technical field of performance detection of aeronautical parts, and is characterized in that a movable end driving mechanism pulls a movable end of a braid to move outwards along the horizontal direction, and a fixed end driving mechanism synchronously drives a fixed end of the braid to move upwards; at the moment, the tension value when the restraint length of the safety belt is reduced can be measured through a tension sensor II, then a fixed end driving mechanism drives the fixed end of the braid to move downwards, and a movable end driving mechanism synchronously drives the movable end of the braid to move inwards in the horizontal direction; at the moment, the tension value when the restraint length of the safety belt is increased can be measured through the tension sensor I. The rotating mechanism drives the buckle fixing base to rotate, the safety belt buckle deflects step by step, and testing of the locking angle of the safety belt buckle is facilitated. The turnover plate of the safety belt buckle is driven by the safety belt buckle reliability detection device to rotate repeatedly to be opened and closed, so that the reliability test of the safety belt buckle and the release force test of the safety belt buckle 11 can be realized conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation parts performance detection, in particular to an aviation safety belt comprehensive performance testing device. Background Art

[0002] Aircraft seatbelts primarily consist of upper torso restraints and pelvic restraints. Their primary function is to protect aircraft occupants and minimize injury. They consist of straps, webbing, or similar devices (including all buckles or other fasteners) and all integrated metal components. As a critical component for passenger safety, rigorous testing of seatbelt performance indicators is crucial. However, existing testing equipment often has a single function and cannot simultaneously meet multiple testing requirements. Furthermore, its low level of automation leaves room for improvement in testing accuracy and efficiency. Therefore, developing a highly efficient and accurate test device that integrates multiple testing functions is crucial. Summary of the Invention

[0003] In order to overcome the deficiencies of the above technologies, the utility model provides a device for realizing comprehensive, rapid and accurate testing of multiple performance indicators of aircraft safety belts.

[0004] The technical solution adopted by the utility model to overcome the technical problems is:

[0005] An aviation safety belt comprehensive performance testing device, comprising:

[0006] The frame has a buckle fixing seat at its upper end, the buckle fixing seat is rotatably mounted on the frame via a rotating shaft, the axis of the rotating shaft of the buckle fixing seat is arranged in a horizontal direction, and the seat belt buckle is fixed on the buckle fixing seat;

[0007] A rotating mechanism is provided on the frame and drives the buckle fixing seat to rotate;

[0008] The movable end driving mechanism is provided on the frame and is located at the right end of the buckle fixing seat. The head end of the movable end of the webbing in the seat belt buckle is connected to the movable end driving mechanism through the tension sensor II;

[0009] A fixed end drive mechanism is provided on the frame and is located at the lower end of the buckle fixing seat. The head end of the fixed end of the webbing in the seat belt buckle is connected to the fixed end drive mechanism via a tension sensor I. The fixed end of the webbing and the movable end of the webbing are at right angles to each other. When the movable end drive mechanism pulls the movable end of the webbing to the right, the fixed end of the webbing moves upward. When the fixed end drive mechanism pulls the fixed end of the webbing downward, the movable end of the webbing moves to the left; and

[0010] The safety belt buckle reliability detection device is arranged on a frame and is used to drive the flip plate of the safety belt buckle to repeatedly rotate open and close.

[0011] In order to facilitate movement, universal wheels are respectively installed at the four corners of the lower end of the frame.

[0012] Furthermore, the above-mentioned rotating mechanism includes a reducer II installed on the frame and a servo motor II coaxially connected to the input end of the reducer II. The output shaft of the reducer II is coaxially connected to the rotating shaft of the snap-fit ​​fixing seat through a coupling I.

[0013] Furthermore, it also includes a disc-shaped scale plate I installed on the frame, which is arranged coaxially with the rotating shaft of the snap-on fixing seat, and an arrow is provided on the snap-on fixing seat. The front end surface of the scale plate I is provided with angle scale values ​​along the circumferential direction, and the arrow points to the angle scale value.

[0014] Furthermore, the above-mentioned movable end driving mechanism includes a linear module I installed on the frame in the horizontal direction, a fixed seat II is installed on the slide of the linear module I, a tension sensor II is installed on the fixed seat II, and the head end of the movable end of the webbing is connected to the tension sensor II through a clamping mechanism.

[0015] Furthermore, the fixed end drive mechanism includes a linear module II mounted on the frame in a vertical direction, a fixed seat I mounted on the slide of the linear module II, a tension sensor I mounted on the fixed seat I, and the head end of the fixed end of the webbing is connected to the tension sensor I.

[0016] Furthermore, the clamping mechanism includes a pressure plate II connected to the tension sensor II and a pressure plate I fixed to the upper end of the pressure plate II by screws, and the head end of the movable end of the webbing is clamped and fixed between the pressure plates I and II.

[0017] Furthermore, the above-mentioned seat belt buckle reliability detection device includes a reducer I installed in a frame, a servo motor I coaxially connected to the output shaft of the reducer I, a swing arm coaxially connected to the output shaft of the reducer I through a coupling II, a support seat installed on the frame, a guide rail installed on the outer end of the swing arm, a cylinder installed on the swing arm, and a slide seat slidably installed on the guide rail, the axis of the cylinder is parallel to the guide rail, a force sensor is installed on the slide seat, a shift block is installed on the measuring end of the force sensor, the piston rod head end of the cylinder is connected to the slide seat, and the seat belt buckle is fixed to the upper end of the support seat by a fixing mechanism, when the swing arm rotates to a horizontal state and the piston rod of the cylinder is fully retracted, the shift block is located at the outer end of the opening of the seat belt buckle, and when the piston rod of the cylinder is fully extended, the shift block is inserted into the seat belt buckle and is located below the flip plate of the seat belt buckle.

[0018] In order to facilitate observation of the rotation angle, a scale plate II is also included which is mounted on the frame. The front end surface of the scale plate II is provided with angle scale values ​​along the circumferential direction.

[0019] Furthermore, the above-mentioned fixing mechanism is two pressing blocks, which are fixed to the support seat by bolts. The two pressing blocks are respectively arranged at the left and right ends of the seat belt buckle, and the pressing blocks are pressed tightly on the edges on the same side of the seat belt buckle.

[0020] The beneficial effects of the present invention are as follows: the movable end drive mechanism pulls the movable end of the webbing horizontally outward, while the fixed end drive mechanism simultaneously drives the fixed end of the webbing upward. At this time, the tension value when the seat belt restraint length is reduced can be measured by tension sensor II. The fixed end drive mechanism then drives the fixed end of the webbing downward, while the movable end drive mechanism simultaneously drives the movable end of the webbing horizontally inward. At this time, the tension value when the seat belt restraint length is increased can be measured by tension sensor I. The rotation mechanism drives the buckle fixing seat to rotate, gradually deflecting the seat belt buckle, facilitating the testing of the buckle locking angle. The buckle reliability testing device drives the buckle's flip plate to repeatedly rotate open and close, facilitating the testing of the buckle's reliability and the release force of the buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the webbing adjustment force test state of the present utility model;

[0023] Figure 3 This is a schematic diagram of the webbing locking angle test state of the present invention;

[0024] Figure 4 This is a schematic diagram of the reliability test state of the safety belt buckle of the present invention;

[0025] Figure 5 This is a schematic diagram of the turning plate of the safety belt buckle of the present invention in a rotating state;

[0026] In the figure, 1. Frame 2. Universal wheel 3. Linear module I 4. Linear module II 5. Scale plate I 6. Support base 7. Scale plate II 8. Coupling I 9. Clip fixing base 10. Arrow 11. Seat belt buckle 12. Webbing movable end 13. Webbing fixed end 14. Fixing base I 15. Tension sensor I 16. Fixing base II 17. Tension sensor II 18. Pressure plate I 19. Pressure plate II 20. Screw 21. Servo motor I 22. Reducer I 23. Coupling II 24. Swing arm 25. Cylinder 26. Guide rail 27. Slide 28. Shift block 29. Pressure block 30. Servo motor II 31. Reducer II 32. Force sensor 111. Flip plate. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 To the attached Figure 5 The utility model is further described.

[0028] As attached Figure 1 As shown, an aviation safety belt comprehensive performance test device comprises: a frame 1, a buckle fixing seat 9 is provided at the upper end thereof, the buckle fixing seat 9 is rotatably mounted on the frame 1 via a rotating shaft, the axis of the rotating shaft of the buckle fixing seat 9 is arranged in the horizontal direction, and the safety belt buckle 11 is fixed to the buckle fixing seat 9; a rotating mechanism is arranged on the frame 1, which drives the buckle fixing seat 9 to rotate; as shown in the attached figure, Figure 2 As shown, it also includes a movable end driving mechanism, which is arranged on the frame 1 and located at the right end of the buckle fixing seat 9, and the head end of the movable end 12 of the webbing in the safety belt buckle 11 is connected to the movable end driving mechanism through the tension sensor II 17; a fixed end driving mechanism, which is arranged on the frame 1 and located at the lower end of the buckle fixing seat 9, and the head end of the fixed end 13 of the webbing in the safety belt buckle 11 is connected to the fixed end driving mechanism through the tension sensor I 15, and the fixed end 13 of the webbing is at a right angle to the movable end 12 of the webbing. When the movable end driving mechanism pulls the movable end 12 of the webbing to the right, the fixed end 13 of the webbing moves upward, and when the fixed end driving mechanism pulls the fixed end 13 of the webbing downward, the movable end 12 of the webbing moves to the left; and a safety belt buckle reliability detection device, which is arranged on the frame 1 and is used to drive the flip plate 111 of the safety belt buckle 11 to repeatedly rotate and open and close. The seat belt webbing is wrapped in the seat belt buckle 11. In actual application scenarios, the fixed end of the webbing is fixed to the aircraft seat, and the movable end 12 of the webbing is in a free state. When the movable end 12 of the webbing is pulled, the length of the fixed end 13 of the webbing is reduced. At this time, the seat belt buckle 11 is adjusted to shorten the length to reduce the restraining length of the seat belt. When the fixed end 13 of the webbing is pulled, the length of the movable end 12 is reduced. At this time, the seat belt buckle 11 is adjusted to increase the length to increase the restraining length of the seat belt. In the initial state, the seatbelt buckle 11 is positioned horizontally, allowing the webbing to move relative to it. During testing, the movable end drive mechanism pulls the movable webbing end 12 horizontally outward, while the fixed end drive mechanism simultaneously drives the fixed webbing end 13 upward. This allows tension sensor II 17 to measure the tension required to reduce the seatbelt's restraint length. The fixed end drive mechanism then drives the fixed webbing end 13 downward, while the movable end drive mechanism simultaneously drives the movable webbing end 12 horizontally inward. This allows tension sensor I 15 to measure the tension required to increase the seatbelt's restraint length. These steps are repeated, repeating the tension tests for both reducing and increasing the seatbelt's restraint length.

[0029] After the safety belt buckle 11 rotates a certain angle relative to the webbing of the safety belt, the force of the webbing moving increases significantly. Figure 3As shown, the rotation mechanism drives the buckle fixing seat 9 to rotate, and the seat belt buckle 11 gradually deflects. During the test of reducing and increasing the seat belt restraint length, when the measured values ​​of the tension sensor II 17 and the tension sensor I 15 reach the set maximum tension value (e.g., 89N), the deflection angle of the buckle fixing seat 9 at this time is recorded to facilitate the test of the locking angle of the seat belt buckle 11.

[0030] The seat belt buckle reliability testing device drives the flip plate 111 of the seat belt buckle 11 to repeatedly rotate open and close, facilitating reliability testing of the seat belt buckle 11 and testing the release force of the seat belt buckle 11. This allows for comprehensive, rapid, and accurate testing of multiple seat belt performance indicators, improving the efficiency and quality of aviation seat belt testing.

[0031] In one embodiment of the present invention, universal wheels 2 are respectively installed at the four corners of the lower end of the frame 1. By providing the universal wheels 2, the movement of the entire frame 1 can be facilitated, further improving the convenience of operation.

[0032] In one embodiment of the present invention, the rotation mechanism may be configured as follows: a reducer II 31 mounted on the frame 1; a servo motor II 30 coaxially connected to the input of reducer II 31; and an output shaft of reducer II 31 coaxially connected to the rotating shaft of a buckle holder 9 via a coupling I 8. The servo motor II 30 rotates, amplified by torque from the reducer II 31, and then drives the buckle holder 9 to rotate, thereby driving the seat belt buckle 11.

[0033] In this embodiment, a disc-shaped scale plate I 5 is preferably mounted on the frame 1. Scale plate I 5 is coaxial with the rotation axis of the buckle mount 9. An arrow 10 is provided on the buckle mount 9. The front end of scale plate I 5 is provided with angle scale values ​​along the circumference, with arrow 10 pointing to the angle scale values. When the buckle mount 9 rotates, the rotation angle of the buckle mount 9 can be easily determined by the scale values ​​on scale plate I 5 pointed by arrow 10, thereby facilitating the determination of the locking angle of the seat belt buckle 11.

[0034] In one embodiment of the present invention, the movable end drive mechanism can be configured as follows: a linear module I 3 mounted horizontally on a frame 1, a fixed seat II 16 mounted on the slide of linear module I 3, and a tension sensor II 17 mounted on fixed seat II 16. The tip of the webbing movable end 12 is connected to tension sensor II 17 via a clamping mechanism. Linear module I 3 drives fixed seat II 16 to slide horizontally. When fixed seat II 16 moves outward, it pulls on the webbing movable end 12, facilitating measurement of the force required to reduce the length of the seat belt. When fixed seat II 16 moves inward, the length of the webbing movable end 12 is released.

[0035] In one embodiment of the present invention, the fixed end drive mechanism can be configured as follows: a linear module II 4 vertically mounted on a frame 1, a fixed seat I 14 mounted on a slide of the linear module II 4, a tension sensor I 15 mounted on the fixed seat I 14, and the head end of the webbing fixed end 13 connected to the tension sensor I 15. The linear module II 4 can drive the fixed seat I 14 to slide vertically. When the fixed seat I 14 moves downward, it pulls the webbing fixed end 13, facilitating measurement of the force required to increase the length of the seat belt. When the fixed seat I 14 moves upward, the length of the webbing fixed end 13 is released.

[0036] In one embodiment of the present invention, the clamping mechanism includes a pressure plate II 19 connected to a tension sensor II 17 and a pressure plate I 18 secured to the upper end of pressure plate II 19 via screws 20. The tip of the webbing's movable end 12 is clamped and secured between pressure plates I 18 and II 19. After testing is complete, screws 20 are loosened and pressure plate I 18 is removed from pressure plate II 19, allowing the webbing's movable end 12 to be removed. This facilitates connection and disassembly, improving testing efficiency.

[0037] As attached Figure 4 As shown, in one embodiment of the present invention, the safety belt buckle reliability detection device can be as follows, which includes a reducer I 22 installed in the frame 1, a servo motor I 21 coaxially connected to the output shaft of the reducer I 22, and a servo motor I 22 connected to the reducer I through a coupling II 23. 22 output shaft is coaxially connected to the swing arm 24, the support base 6 installed on the frame 1, the guide rail 26 installed on the outer end of the swing arm 24, the cylinder 25 installed on the swing arm 24 and the slide 27 slidably installed on the guide rail 26, the axis of the cylinder 25 is parallel to the guide rail 26, a force sensor 32 is installed on the slide 27, the measuring end of the force sensor is installed with a shift block 28, the piston rod head end of the cylinder 25 is connected to the slide 27, the seat belt buckle 11 is fixed to the upper end of the support base 6 through a fixing mechanism, when the swing arm 24 rotates to a horizontal state and the piston rod of the cylinder 25 is fully retracted, the shift block 28 is located at the outer end of the opening of the seat belt buckle 11, and when the piston rod of the cylinder 25 is fully extended, the shift block 28 is inserted into the seat belt buckle 11 and is located below the flip plate 11 of the seat belt buckle 11. The servo motor Ⅰ 21 rotates and is decelerated and amplified by the reducer Ⅰ 22, and then the coupling Ⅱ 23 is used to drive the swing arm 24 to rotate. Figure 5As shown, since the shift block 28 is inserted into the seat belt buckle 11 and is located below the flip plate 111 of the seat belt buckle 11, when the swing arm 24 rotates upward, the shift block 28 drives the flip plate 111 to rotate upward. When the shift block 28 drives the flip plate 111 to rotate upward, the flip force is measured by the force sensor 32 to realize the test of the release force of the seat belt buckle 11. When the flip plate 111 rotates to the set angle, the piston rod of the cylinder 25 retracts, which drives the shift block 28 to move outward relative to the seat belt buckle 11, and the shift block 28 leaves the flip plate 111. Under the spring force of the seat belt buckle 11, the flip plate 111 is reset. Repeating the above steps can realize the cyclic flipping and opening of the flip plate 111, and complete the reliability test of the seat belt buckle 11 and the release force test of the seat belt buckle 11.

[0038] In one embodiment of the present invention, a scale plate II 7 is mounted on the frame 1. The front end of the scale plate II 7 is provided with angle scale values ​​along the circumference. When the swing arm 24 rotates, the side of the swing arm 24 coincides with the scale values ​​on the scale plate II 7, allowing for easy reading of the rotation angle, thereby improving ease of use.

[0039] In one embodiment of the present invention, the fixing mechanism comprises two pressing blocks 29, which are fixed to the support base 6 via bolts. The two pressing blocks 29 are respectively provided at the left and right ends of the seat belt buckle 11, and the pressing blocks 29 press against the edges on the same side of the seat belt buckle 11. After the seat belt buckle 11 is placed on the support base 6, the pressing blocks 29 are fixed to the support base 6 via bolts. The pressing blocks 29 press against the edges of the seat belt buckle 11, thereby securing the seat belt buckle 11.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An aviation safety belt comprehensive performance testing device, characterized in that: include: A frame (1) is provided with a buckle fixing seat (9) at its upper end, the buckle fixing seat (9) is rotatably mounted on the frame (1) via a rotating shaft, the axis of the rotating shaft of the buckle fixing seat (9) is arranged in a horizontal direction, and a safety belt buckle (11) is fixed on the buckle fixing seat (9); A rotating mechanism is provided on the frame (1) and drives the buckle fixing seat (9) to rotate; A movable end driving mechanism is provided on the frame (1) and is located at the right end of the buckle fixing seat (9), and the head end of the webbing movable end (12) in the safety belt buckle (11) is connected to the movable end driving mechanism via a tension sensor II (17); The fixed end driving mechanism is provided on the frame (1) and is located at the lower end of the buckle fixing seat (9). The head end of the fixed end (13) of the webbing in the safety belt buckle (11) is connected to the fixed end driving mechanism through the tension sensor I (15). The fixed end (13) of the webbing and the movable end (12) of the webbing are at right angles to each other. When the movable end driving mechanism pulls the movable end (12) of the webbing to the right, the fixed end (13) of the webbing moves upward. When the fixed end driving mechanism pulls the fixed end (13) of the webbing downward, the movable end (12) of the webbing moves to the left. as well as A safety belt buckle reliability detection device is arranged on a frame (1) and is used to drive a flip plate (111) of a safety belt buckle (11) to repeatedly rotate and open and close.

2. The aviation safety belt comprehensive performance testing device according to claim 1, characterized in that: Universal wheels (2) are respectively installed at the four corners of the lower end of the frame (1).

3. The aviation safety belt comprehensive performance testing device according to claim 1, characterized in that: The rotating mechanism includes a reducer II (31) mounted on the frame (1) and a servo motor II (30) coaxially connected to the input end of the reducer II (31). The output shaft of the reducer II (31) is coaxially connected to the rotating shaft of the snap-fit ​​fixing seat (9) through a coupling I (8).

4. The aviation safety belt comprehensive performance testing device according to claim 3, characterized in that: The invention also includes a disc-shaped scale plate I (5) mounted on the frame (1), the scale plate I (5) and the rotating shaft of the buckle fixing seat (9) are arranged on the same axis, the buckle fixing seat (9) is provided with an arrow (10), and the front end surface of the scale plate I (5) is provided with an angle scale value along the circumferential direction, and the arrow (10) points to the angle scale value.

5. The aviation safety belt comprehensive performance testing device according to claim 1, characterized in that: The movable end driving mechanism comprises a linear module I (3) mounted on a frame (1) in a horizontal direction, a fixed seat II (16) mounted on a slide seat of the linear module I (3), a tension sensor II (17) mounted on the fixed seat II (16), and a head end of the ribbon movable end (12) is connected to the tension sensor II (17) via a clamping mechanism.

6. The aviation safety belt comprehensive performance testing device according to claim 1, characterized in that: The fixed end driving mechanism comprises a linear module II (4) mounted on a frame (1) in a vertical direction, a fixed seat I (14) mounted on a slide seat of the linear module II (4), a tension sensor I (15) mounted on the fixed seat I (14), and a head end of the webbing fixed end (13) connected to the tension sensor I (15).

7. The aviation safety belt comprehensive performance testing device according to claim 5, characterized in that: The clamping mechanism includes a pressure plate II (19) connected to the tension sensor II (17) and a pressure plate I (18) fixed to the upper end of the pressure plate II (19) by a screw (20), and the head end of the webbing movable end (12) is clamped and fixed between the pressure plate I (18) and the pressure plate II (19).

8. The aviation safety belt comprehensive performance testing device according to claim 1, characterized in that: The safety belt buckle reliability detection device comprises a reducer I (22) installed in a frame (1), a servo motor I (21) coaxially connected to the output shaft of the reducer I (22), a swing arm (24) coaxially connected to the output shaft of the reducer I (22) via a coupling II (23), a support seat (6) installed on the frame (1), a guide rail (26) installed on the outer end of the swing arm (24), a cylinder (25) installed on the swing arm (24), and a slide seat (27) slidably installed on the guide rail (26), wherein the axis of the cylinder (25) is parallel to the guide rail (26), and the slide seat ( A force sensor (32) is installed on the seat belt buckle (27), and a shift block (28) is installed on the measuring end of the force sensor. The piston rod head end of the cylinder (25) is connected to the slide seat (27), and the seat belt buckle (11) is fixed to the upper end of the support seat (6) through a fixing mechanism. When the swing arm (24) rotates to a horizontal state and the piston rod of the cylinder (25) is fully retracted, the shift block (28) is located at the outer end of the opening of the seat belt buckle (11). When the piston rod of the cylinder (25) is fully extended, the shift block (28) is inserted into the seat belt buckle (11) and is located below the flip plate (111) of the seat belt buckle (11).

9. The aviation safety belt comprehensive performance testing device according to claim 8, characterized in that: It also includes a scale plate II (7) mounted on the frame (1), wherein the front end surface of the scale plate II (7) is provided with angle scale values ​​along the circumferential direction.

10. The aviation safety belt comprehensive performance testing device according to claim 8, characterized in that: The fixing mechanism comprises two pressing blocks (29), which are fixed to the support seat (6) by bolts. The two pressing blocks (29) are respectively arranged at the left and right ends of the seat belt buckle (11), and the pressing blocks (29) are pressed tightly against the edges on the same side of the seat belt buckle (11).

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