Performance detection device for automobile safety belt

Abstract

The invention belongs to the technical field of test equipment, and particularly relates to a performance detection device for an automobile safety belt, which comprises a mounting box, two groups of first support rods which are symmetrically arranged in pairs are fixedly connected to the mounting box, every two first support rods are connected through a second support rod, the plurality of first support rods are vertically arranged, and the second support rods are vertically arranged on the mounting box. The two second supporting rods are fixedly connected with two sets of third supporting rods which are symmetrically arranged in pairs, baffles are movably connected between the two third supporting rods in a clamped mode, a movement detection mechanism is arranged between the two baffles, and two symmetrically-arranged first movement rails are arranged on the mounting box. According to the invention, different damages possibly encountered by the safety belt can be fully simulated, so that the use safety degrees of different types of safety belts under different conditions are obtained, the safety coefficient of a user during use of the safety belt is improved, an automobile manufacturer can select different types of safety belts according to use requirements, and the user experience is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of testing equipment, and in particular relates to a performance testing device for automobile safety belts. Background Art

[0002] A car safety belt, also known as a safety belt or seat belt, is a device that protects drivers and passengers in the event of a vehicle collision or emergency braking. It reduces the risk of injury by securing occupants in their seats to prevent them from flying out of the car or colliding in the car due to inertia.

[0003] Car seat belts usually consist of webbing, retractor and buckle. Webbing is the main part of the seat belt, usually made of high-strength synthetic fiber to withstand extreme tension. The retractor allows the seat belt to extend when needed and automatically retract when not in use, keeping it neat. The buckle is used to connect the two ends of the webbing to form a complete restraint system.

[0004] Modern car seat belts are designed with a strong focus on comfort and safety. They can be three-point, four-point or even five-point, depending on the type of vehicle and its purpose. For example, a racing car might use a five-point seat belt to provide greater lateral support and protection.

[0005] In addition, many modern cars are equipped with pretensioner seatbelts, which quickly tighten to more tightly secure the occupant when an impending collision is detected. Some models are equipped with retractable force-limiting seatbelts, which can relax slightly in high-load situations to reduce the impact force on the occupant.

[0006] The existing automobile seat belt performance testing devices generally perform tension tests, wear tests, environmental adaptability tests, durability tests, and locking device function tests on the seat belts. These tests are relatively conventional and cannot well simulate the tests of seat belts under different damage and superimposed damage states. For this reason, we propose a performance testing device for automobile seat belts to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide a performance testing device for automobile seat belts, which can fully simulate the different damages that the seat belts may encounter, and then derive the safety of different types of seat belts in different situations, thereby improving the safety factor of users when using seat belts, and helping automobile manufacturers to select different types of seat belts according to usage needs, thereby improving user experience.

[0008] The technical solution adopted by the present invention is as follows: A performance testing device for a car seat belt comprises an installation box, to which two groups of first support rods symmetrically arranged in pairs are fixedly connected, and every two first support rods are connected by a second support rod, a plurality of the first support rods are vertically arranged, two of the second support rods are fixedly connected to two groups of third support rods symmetrically arranged in pairs, and a baffle is movably clamped between the two third support rods, a moving detection mechanism is arranged between the two baffles, two symmetrically arranged first moving rails are arranged on the installation box, and a stretching mechanism is arranged on the first moving rails, a chemical resistance detection mechanism is arranged in the installation box, and a dynamic detection mechanism is arranged in the installation box.

[0009] In a preferred embodiment, the mobile detection mechanism includes two symmetrically arranged first mounting seats, an electric roller is mounted on each of the two first mounting seats, and the output end of the electric roller is connected to the first rotating cylinder, a transmission belt is provided on each of the two first rotating cylinders, and the ends of the two transmission belts away from the first rotating cylinder are connected to the second rotating cylinder, a second mounting seat is provided on the side wall of the baffle, and the second mounting seat is matched with the second rotating cylinder, a mobile cutting body is movably connected between the two transmission belts, and stabilizing bars are movably connected to the side walls of the two second rotating cylinders on opposite sides, and the two stabilizing bars are movably connected at opposite ends.

[0010] In a preferred embodiment, the stretching mechanism includes two symmetrically arranged electric sliders, and the electric sliders are matched with the first movable track, and the first electric retractor is movably connected to the two electric sliders.

[0011] In a preferred embodiment, the chemical tolerance detection mechanism includes a test box, the test box is provided with a box cover, and an ultraviolet lamp is movably connected to the box cover. The test box contains corrosive liquid, and the corrosive liquid is a mixture of detergent, car interior cleaner, alcohol, gasoline, perfume, laundry detergent, antifreeze, and paint. The bottom of the test box is fixedly connected to a drain pipe, and a pipe valve is provided on the drain pipe.

[0012] In a preferred embodiment, the dynamic detection mechanism includes a horizontally arranged detection plate, a sliding groove is provided on the detection plate, a vertically arranged connecting plate is slidably connected in the sliding groove, a horizontally arranged first clamping plate is fixedly connected to the side wall of the connecting plate, and a horizontally arranged second clamping plate is movably clamped on the side wall of the connecting plate, a clamping groove is provided on the first clamping plate, and a clamping column matched with the clamping groove is provided on the second clamping plate, a second electric retractor is provided on the detection plate, and the output end of the second electric retractor is connected to the seat belt body, the clamping column is matched with the seat belt body, an electric tensioner is provided on the detection plate, and the output end of the electric tensioner is connected to a connecting belt, and the connecting belt is matched with the connecting plate.

[0013] In a preferred embodiment, a placement plate is provided on the installation box, two symmetrically arranged sliding bases are provided on the installation box, and the sliding bases are matched with the placement plate, and sliding extrusion plates are provided on the two sliding bases, and the two sliding extrusion plates are respectively located on both sides of the first movable track.

[0014] In a preferred embodiment, a horizontally arranged first mounting plate is movably connected to the mounting box, and the first mounting plate and the sliding base are in the same working plane, two symmetrically arranged support seats are movably connected to the first mounting plate, and a second movable track is arranged between the two support seats, two symmetrically arranged infrared locators are arranged on the second movable track, and an electromagnetic interferer is arranged between the two infrared locators, a third mounting seat is arranged on the first mounting plate, and a plurality of punchers are arranged on the third mounting seat.

[0015] In a preferred embodiment, the mobile cutting body includes two symmetrically arranged horizontal clamps, and the two horizontal clamps are movably connected with vertically arranged vertical clamps, a horizontally arranged second mounting plate is movably connected between the two vertical clamps, and a vertically arranged electric cutter is provided on the second mounting plate.

[0016] In a preferred solution, a vertically arranged third mounting plate is movably connected to the side wall of the second mounting plate, and a driver is provided on the third mounting plate, and an output end of the driver is connected to an electric impact hammer.

[0017] In a preferred embodiment, a horizontally arranged fixing rod is provided in the sliding groove, and the two ends of the fixing rod are respectively movably engaged with the inner walls on both sides of the sliding groove, the connecting plate is sleeved on the fixing rod, and a damping spring is sleeved on the fixing rod, and the damping spring is matched with the connecting plate.

[0018] The technical effects achieved by the present invention are: When a tensile test is required, the safety belt body is connected to the two first electric retractors, and the two electric sliders move in opposite directions, thereby driving the safety belt body to perform a tensile test; When a post-splitting tensile test is required, the electric cutter is turned on to cut the side and middle of the seat belt respectively, simulating the situation where the glass cuts the seat belt when an accident occurs. The electric roller is turned on to drive the first rotating drum to rotate, thereby driving the transmission belt to move, so that the transmission belt drives the horizontal clamping plate and the second mounting plate to move, thereby driving the electric cutter to move, and the cutting position of the seat belt is adjusted. The first electric retractor is turned on to drive the seat belt body to move, and then the cutting simulation is performed on multiple places of the seat belt body, and then the electric slider is used to stretch it, so as to more realistically simulate the situation where the glass cuts the seat belt when an accident occurs, and obtain more accurate post-splitting tensile test data; When an impact test is required, turn on the driver to drive the electric impact hammer to move in the vertical direction, so that the electric impact hammer impacts the seat belt body. The test can be carried out alone or in combination with the tensile test after cutting to simulate the performance of the seat belt in extreme accident situations. When dynamic testing is required, the safety belt body is connected to the first clamping plate and the second clamping plate, the working length of the safety belt is adjusted by moving the connecting plate, the connecting belt is connected to the connecting plate, and the electric tensioner is turned on to drive the connecting belt and the safety belt body to move, so that the tension strength test of the safety belt body is performed with different forces by the electric tensioner, and the strength test after the safety belt body is simulated after being cut can also be performed; When conducting chemical tolerance testing, the seat belt body is placed in a test box, and the corrosive liquid is immersed in the test box to simulate the working condition of the seat belt body being corroded by external chemicals for a long time. The ultraviolet lamp is turned on to irradiate the seat belt body to simulate the working condition of the seat belt body being exposed to sunlight for a long time. It can be combined with tensile test, impact test, tensile test after cutting, and dynamic detection test to fully simulate the different damages that the seat belt may encounter, and then the safety of different types of seat belts in different situations can be obtained, thereby improving the safety factor of users when using seat belts, which is beneficial for automobile manufacturers to choose different types of seat belts according to usage needs and improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a performance testing device for a vehicle safety belt of the present invention; Figure 2 It is a schematic diagram of the upper part of a performance testing device for a vehicle safety belt of the present invention; Figure 3 It is a schematic diagram of the lower part of a performance testing device for a vehicle safety belt of the present invention; Figure 4 It is a schematic diagram of a dynamic detection mechanism of a performance detection device for a vehicle safety belt of the present invention; Figure 5 It is a schematic diagram of a chemical resistance testing mechanism of a performance testing device for a vehicle safety belt of the present invention; Figure 6 for Figure 2 Schematic diagram at A in the middle; Figure 7 for Figure 2 Schematic diagram of point B in the figure.

[0020] In the figure: 1 installation box, 2 first support rod, 3 second support rod, 4 third support rod, 5 baffle, 6 first moving track, 7 first mounting seat, 8 electric roller, 9 first rotating cylinder, 10 driving belt, 11 second rotating cylinder, 12 second mounting seat, 13 stabilizing rod, 14 electric slider, 15 first electric retractor, 16 test box, 17 ultraviolet lamp, 18 corrosive liquid, 19 drain pipe, 20 pipe valve, 21 detection plate, 22 sliding groove, 23 connecting plate, 24 first clamping plate, 25 second clamping plate, 26 clamping column , 27 card slot, 28 second electric retractor, 29 safety belt body, 30 electric tensioner, 31 connecting belt, 32 fixing rod, 33 damping spring, 34 placement plate, 35 sliding base, 36 sliding extrusion plate, 37 first mounting plate, 38 support seat, 39 second moving track, 40 infrared locator, 41 electromagnetic jammer, 42 third mounting seat, 43 puncher, 44 horizontal splint, 45 vertical splint, 46 second mounting plate, 47 electric cutter, 48 third mounting plate, 49 driver, 50 electric impact hammer. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] See also Figure 1-7 The present invention provides a performance testing device for a car seat belt, comprising an installation box 1, to which two groups of first support rods 2 symmetrically arranged in pairs are fixedly connected, and every two first support rods 2 are connected by a second support rod 3, multiple first support rods 2 are vertically arranged, two second support rods 3 are fixedly connected to two groups of third support rods 4 symmetrically arranged in pairs, and a baffle 5 is movably clamped between the two third support rods 4, a moving detection mechanism is provided between the two baffles 5, two symmetrically arranged first moving rails 6 are provided on the installation box 1, and a stretching mechanism is provided on the first moving rails 6, a chemical resistance detection mechanism is provided in the installation box 1, and a dynamic detection mechanism is provided in the installation box 1.

[0023] The mobile detection mechanism includes two symmetrically arranged first mounting seats 7, on which electric rollers 8 are mounted, and the output ends of the electric rollers 8 are connected to the first rotating cylinders 9, on which transmission belts 10 are arranged, and the ends of the two transmission belts 10 away from the first rotating cylinders 9 are connected to the second rotating cylinders 11, on the side walls of the baffle 5 a second mounting seat 12 is arranged, and the second mounting seat 12 is matched with the second rotating cylinders 11, a mobile cutting body is movably connected between the two transmission belts 10, and on opposite side walls of the two second rotating cylinders 11 a stabilizing rod 13 is movably connected, and opposite ends of the two stabilizing rods 13 are movably connected.

[0024] The stretching mechanism includes two symmetrically arranged electric sliders 14 , and the electric sliders 14 are matched with the first movable track 6 , and the first electric retractors 15 are movably connected to the two electric sliders 14 .

[0025] The chemical tolerance testing mechanism includes a test box 16, which is provided with a box cover, and an ultraviolet lamp 17 is movably connected to the box cover. The test box 16 contains a corrosive liquid 18, which is a mixture of detergent, car interior cleaner, alcohol, gasoline, perfume, laundry detergent, antifreeze, and paint. The bottom of the test box 16 is fixedly connected to a drain pipe 19, and the drain pipe 19 is provided with a pipe valve 20.

[0026] The dynamic detection mechanism includes a horizontally arranged detection plate 21, a sliding groove 22 is provided on the detection plate 21, a vertically arranged connecting plate 23 is slidably connected in the sliding groove 22, a horizontally arranged first clamping plate 24 is fixedly connected to the side wall of the connecting plate 23, and a horizontally arranged second clamping plate 25 is movably clamped on the side wall of the connecting plate 23, a clamping groove 27 is provided on the first clamping plate 24, and a clamping column 26 matched with the clamping groove 27 is provided on the second clamping plate 25, a second electric retractor 28 is provided on the detection plate 21, and the output end of the second electric retractor 28 is connected to a seat belt body 29, and the clamping column 26 is matched with the seat belt body 29, and an electric tensioner 30 is provided on the detection plate 21, and the output end of the electric tensioner 30 is connected to a connecting belt 31, and the connecting belt 31 is matched with the connecting plate 23.

[0027] A placement plate 34 is provided on the installation box 1 , and two symmetrically arranged sliding bases 35 are provided on the installation box 1 , and the sliding bases 35 are matched with the placement plate 34 , and sliding extrusion plates 36 are provided on the two sliding bases 35 , and the two sliding extrusion plates 36 are respectively located on both sides of the first movable track 6 .

[0028] A horizontally arranged first mounting plate 37 is movably connected to the mounting box 1, and the first mounting plate 37 and the sliding base 35 are in the same working plane, two symmetrically arranged support seats 38 are movably connected to the first mounting plate 37, and a second movable track 39 is arranged between the two support seats 38, two symmetrically arranged infrared locators 40 are arranged on the second movable track 39, and an electromagnetic interferer 41 is arranged between the two infrared locators 40, a third mounting seat 42 is arranged on the first mounting plate 37, and a plurality of punchers 43 are arranged on the third mounting seat 42.

[0029] The mobile cutting body includes two symmetrically arranged horizontal clamps 44, and the two horizontal clamps 44 are movably connected with vertical clamps 45, and a horizontally arranged second mounting plate 46 is movably connected between the two vertical clamps 45, and a vertically arranged electric cutter 47 is provided on the second mounting plate 46.

[0030] A third mounting plate 48 vertically arranged is movably connected to the side wall of the second mounting plate 46 , and a driver 49 is arranged on the third mounting plate 48 . An output end of the driver 49 is connected to an electric impact hammer 50 .

[0031] A horizontally arranged fixing rod 32 is provided in the sliding groove 22, and the two ends of the fixing rod 32 are respectively movably engaged with the inner walls on both sides of the sliding groove 22, the connecting plate 23 is sleeved on the fixing rod 32, and a damping spring 33 is sleeved on the fixing rod 32, and the damping spring 33 is matched with the connecting plate 23.

[0032] In the present invention, when a tensile test is required, the safety belt body 29 is connected to the two first electric retractors 15, and the two electric sliders 14 move in opposite directions, thereby driving the safety belt body 29 to perform a tensile test; When a post-severance tensile test is required, the electric cutter 47 is turned on to cut the side and middle of the safety belt respectively, simulating the situation that the glass cuts the safety belt when an accident occurs, the electric drum 8 is turned on to drive the first rotating drum 9 to rotate, thereby driving the transmission belt 10 to move, so that the transmission belt 10 drives the horizontal clamping plate 44 and the second mounting plate to move, thereby driving the electric cutter 47 to move, and the cutting position of the safety belt is adjusted, and the first electric retractor 15 is turned on to drive the safety belt body 29 to move, and then the cutting simulation is performed on multiple places of the safety belt body 29, and then the electric slider 14 is used to stretch it, so as to more realistically simulate the situation that the glass cuts the safety belt when an accident occurs, and obtain more accurate post-severance tensile test data; When an impact test is required, the driver 49 is turned on to drive the electric impact hammer 50 to move in the vertical direction, so that the electric impact hammer 50 impacts the seat belt body. The test can be performed alone or in combination with the tensile test after cutting to simulate the performance of the seat belt under extreme accident conditions. When dynamic testing is required, the safety belt body 29 is connected to the first clamping plate 24 and the second clamping plate 25, the working length of the safety belt 29 is adjusted by moving the connecting plate 23, the connecting belt 31 is connected to the connecting plate 23, and the electric tensioner 30 is turned on to drive the connecting belt 31 and the safety belt body 29 to move, so that the tension strength test of the safety belt body 29 is performed with different forces by the electric tensioner 30, and the strength test after the safety belt body 29 is simulated after being cut can also be performed; When conducting chemical tolerance testing, the seat belt body 29 is placed in the test box 16, and the corrosive liquid 18 is immersed in the test box 16 to simulate the working condition of the seat belt body 29 being corroded by external chemicals for a long time. The ultraviolet lamp 17 is turned on to irradiate the seat belt body 29 to simulate the working condition of the seat belt body 29 being exposed to sunlight for a long time. It can be combined with tensile testing, impact testing, tensile testing after cutting, and dynamic detection testing to fully simulate different damages that the seat belt may encounter, and then the safety of different types of seat belts in different situations can be obtained, thereby improving the safety factor of users when using seat belts, which is beneficial for automobile manufacturers to choose different types of seat belts according to usage needs and improve user experience.

[0033] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A performance testing device for a car seat belt, characterized in that: The invention comprises an installation box (1), wherein two groups of first support rods (2) arranged symmetrically in pairs are fixedly connected to the installation box (1), and each two first support rods (2) are connected via a second support rod (3), a plurality of the first support rods (2) are arranged vertically, two second support rods (3) are fixedly connected to two groups of third support rods (4) arranged symmetrically in pairs, and a baffle (5) is movably connected between the two third support rods (4), a movement detection mechanism is arranged between the two baffles (5), the installation box (1) is provided with two first movement rails (6) arranged symmetrically, and a stretching mechanism is arranged on the first movement rails (6), a chemical resistance detection mechanism is arranged in the installation box (1), and a dynamic detection mechanism is arranged in the installation box (1).

2. A performance testing device for a vehicle safety belt according to claim 1, characterized in that: The mobile detection mechanism comprises two symmetrically arranged first mounting seats (7), the two first mounting seats (7) are both mounted with an electric roller (8), and the output end of the electric roller (8) is connected to a first rotating cylinder (9), the two first rotating cylinders (9) are both provided with a transmission belt (10), and the ends of the two transmission belts (10) away from the first rotating cylinder (9) are connected to a second rotating cylinder (11), a second mounting seat (12) is provided on the side wall of the baffle (5), and the second mounting seat (12) is matched with the second rotating cylinder (11), a mobile cutting body is movably connected between the two transmission belts (10), and the side walls of the two second rotating cylinders (11) on the opposite side are both movably connected with a stabilizing rod (13), and the opposite ends of the two stabilizing rods (13) are movably connected.

3. A performance testing device for a vehicle safety belt according to claim 1, characterized in that: The stretching mechanism comprises two symmetrically arranged electric sliders (14), and the electric sliders (14) are arranged to match the first movable track (6), and the first electric retractor (15) is movably connected to the two electric sliders (14).

4. A performance testing device for a vehicle safety belt according to claim 1, characterized in that: The chemical tolerance testing mechanism comprises a test box (16), the test box (16) being provided with a box cover, the box cover being movably connected to an ultraviolet lamp (17), the test box (16) containing a corrosive liquid (18), the corrosive liquid (18) being a mixture of detergent, automobile interior cleaning agent, alcohol, gasoline, perfume, laundry detergent, antifreeze, and paint, the bottom of the test box (16) being fixedly connected to a drain pipe (19), and the drain pipe (19) being provided with a pipe valve (20).

5. A performance testing device for a vehicle safety belt according to claim 1, characterized in that: The dynamic detection mechanism comprises a horizontally arranged detection plate (21), the detection plate (21) being provided with a sliding groove (22), a vertically arranged connecting plate (23) being slidably connected in the sliding groove (22), a horizontally arranged first clamping plate (24) being fixedly connected to a side wall of the connecting plate (23), and a horizontally arranged second clamping plate (25) being movably clamped to the side wall of the connecting plate (23), the first clamping plate (24) being provided with a clamping groove (27), and the second clamping plate (25) being movably clamped to the side wall of the connecting plate (23). A clamping column (26) matched with the clamping slot (27) is provided on the detection plate (21), a second electric retractor (28) is provided on the detection plate (21), and the output end of the second electric retractor (28) is connected to the safety belt body (29), the clamping column (26) is matched with the safety belt body (29), an electric tensioner (30) is provided on the detection plate (21), and the output end of the electric tensioner (30) is connected to a connecting belt (31), and the connecting belt (31) is matched with the connecting plate (23).

6. A performance testing device for a vehicle safety belt according to claim 1, characterized in that: The installation box (1) is provided with a placement plate (34), the installation box (1) is provided with two symmetrically arranged sliding bases (35), and the sliding bases (35) are matched with the placement plate (34), and the two sliding bases (35) are provided with sliding extrusion plates (36), and the two sliding extrusion plates (36) are respectively located on both sides of the first movable track (6).

7. A performance testing device for a vehicle safety belt according to claim 6, characterized in that: The installation box (1) is movably connected to a first installation plate (37) which is horizontally arranged, and the first installation plate (37) and the sliding base (35) are located in the same working plane, the first installation plate (37) is movably connected to two symmetrically arranged support seats (38), and a second movable track (39) is arranged between the two support seats (38), the second movable track (39) is provided with two symmetrically arranged infrared locators (40), and an electromagnetic interference device (41) is arranged between the two infrared locators (40), the first installation plate (37) is provided with a third installation seat (42), and the third installation seat (42) is provided with a plurality of punchers (43).

8. A performance testing device for a vehicle safety belt according to claim 2, characterized in that: The movable cutting body comprises two symmetrically arranged horizontal clamping plates (44), and the two horizontal clamping plates (44) are movably clamped with a vertically arranged vertical clamping plate (45), a horizontally arranged second mounting plate (46) is movably clamped between the two vertical clamping plates (45), and a vertically arranged electric cutter (47) is provided on the second mounting plate (46).

9. A performance testing device for a vehicle safety belt according to claim 8, characterized in that: A third mounting plate (48) arranged vertically is movably clamped on the side wall of the second mounting plate (46), and a driver (49) is provided on the third mounting plate (48). The output end of the driver (49) is connected to an electric impact hammer (50).

10. A performance testing device for a vehicle safety belt according to claim 5, characterized in that: A horizontally arranged fixing rod (32) is provided in the sliding groove (22), and two ends of the fixing rod (32) are respectively movably engaged with two side inner walls of the sliding groove (22), the connecting plate (23) is sleeved on the fixing rod (32), a damping spring (33) is sleeved on the fixing rod (32), and the damping spring (33) is matched with the connecting plate (23).

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