CN113109012B - Safety testing device and method for automobile child safety seat - Google Patents
Safety testing device and method for automobile child safety seat Download PDFInfo
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- CN113109012B CN113109012B CN202110566840.4A CN202110566840A CN113109012B CN 113109012 B CN113109012 B CN 113109012B CN 202110566840 A CN202110566840 A CN 202110566840A CN 113109012 B CN113109012 B CN 113109012B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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Abstract
The invention discloses a safety test device and a safety test method for an automobile child safety seat. According to the invention, the force multiplication air cylinder, the buffer seat and the seat adjusting assembly are arranged, the force multiplication air cylinder is matched with the inner chute of the buffer seat for use, under the condition of ensuring that the test condition is qualified, the stroke and the size of the detection equipment are reduced, the practicability is improved, meanwhile, the buffer seat effectively buffers the impact force generated during detection, the integral stability and the service life of the detection equipment are improved, meanwhile, the seat adjusting assembly meets different test methods and heights, and the applicability of the detection equipment is improved.
Description
Technical Field
The invention relates to the technical field of safety test equipment for automobile child safety seats, in particular to safety test equipment for automobile child safety seats and a test method thereof.
Background
A restraint system for child passengers of a motor vehicle, namely a child safety seat of the motor vehicle, is designed by children of different ages, is installed in a vehicle, and can effectively improve the riding safety of the children.
The existing safety testing equipment for the automobile child safety seat is large in size, long in stroke, inconvenient to operate, poor in stability and short in service life under long-term violent impact, and the existing safety testing equipment for the automobile child safety seat cannot adjust the detection angle and the height and is required to be mounted again after being detached, so that the applicability is poor.
Therefore, how to ensure high detection efficiency, reduce the volume of the detection equipment, prolong the service life of the detection equipment and improve the convenience and diversity of detection is the problem to be solved at present.
Patent number CN201910094449.1 relates to a back intensity check out test set for car seat, including the workstation, still include installation component, parallel rocking mechanism, lift trembling mechanism and detection mechanism, lift trembling mechanism includes rocker lifting unit, parallel rocking mechanism includes cam moving assembly, installation component includes the fixed plate, the fixed plate is located cam moving assembly's top, detection mechanism includes adjusting part, controller and a plurality of correlation formula photoelectric sensor, adjusting part includes U type removal frame, U type removal frame is located one side of fixed plate, the transmitting terminal and the receiving terminal of all correlation formula photoelectric sensor in the top of workstation set up respectively at the both ends of U type removal frame inboard, the controller is located the lateral wall of workstation, all correlation formula photoelectric sensor are connected with the controller electricity, the rocking and shake up and down when this equipment can simulate the car operation to accurate detection.
The device has the following disadvantages when in use: 1. the device has larger volume, inconvenient operation, poor stability and short service life, so the improvement is needed; 2. the device can not carry out and regulation to detecting angle and height, needs to dismantle the back and reinstall, and the suitability is poor.
Disclosure of Invention
The invention aims to provide safety testing equipment and a safety testing method for an automobile child safety seat, and aims to solve the problems that the existing safety testing equipment for the automobile child safety seat in the background technology is large in size, long in stroke and inconvenient to operate, has poor stability and short service life under long-term violent impact, cannot adjust the detected angle and height, needs to be reinstalled after being disassembled, and is poor in applicability.
In order to solve the technical problems, the invention provides the following technical scheme: a safety test device for an automobile child safety seat comprises a base and a buffer seat, wherein two sides in the base are provided with stabilizing grooves, the right side in the stabilizing grooves is fixedly provided with one end of a damping shock-absorbing spring A, the other end of the damping shock-absorbing spring A is fixedly connected with a stabilizing block, the stabilizing block is fixedly connected with the bottom of the buffer seat, the two ends on the right side of the buffer seat are fixedly connected with one end of a damping shock-absorbing spring B, the other end of the damping shock-absorbing spring B is fixedly connected with the left side above the base, the buffer seat is internally provided with a mounting groove, the inside left side fixed mounting of mounting groove has the multiple cylinder, the spout has been seted up to the inside both sides of mounting groove, the inside sliding connection of spout has slider one end, slider other end fixedly connected with strikes the seat, strike seat right side fixedly connected with bluff piece, just strike seat fixed connection in the power take off end top of multiple cylinder, the seat adjusting part mounting groove has been seted up on the cushion seat right side, the inside demountable installation of seat adjusting part mounting groove has seat adjusting part, seat adjusting part top fixedly connected with seat mount pad.
Preferably, seat adjusting part includes installing support, half gear dish installation base and seat altitude mixture control subassembly, the top fixed mounting of half gear dish installation base has the installing support, a plurality of damping shock absorber spring C of inside fixedly connected with of installing support, the inboard fixedly connected with seat altitude mixture control subassembly of damping shock absorber spring C, the meshing is connected with the driving gear outside half gear dish installation base, the inside fixedly connected with motor A's of driving gear power output shaft can adjust the angle and the height of seat installation seat through installation seat adjusting part, and the car children safety seat who satisfies different requirements detects, has improved check out test set's suitability, and damping shock absorber spring C can cushion the impact force that the blushing block produced simultaneously, protects seat altitude mixture control subassembly, has improved its life.
Preferably, seat height adjusting subassembly includes motor B, lifting screw and promotion loop bar, motor B power output shaft fixedly connected with lifting screw, lifting screw outside threaded connection has the thread bush, the thread bush outside is rotated and is connected with the bearing housing, the one end of bearing housing top outside fixedly connected with promotion loop bar, just the other end fixed connection that promotes the loop bar is in seat mount base portion, seat height adjusting subassembly can carry out the regulation of height to the seat mount base, satisfies not the seat of equidimension and detects, has improved check out test set's suitability.
Preferably, the outside both sides fixedly connected with gag lever post one end of bearing housing, the spacing groove has been seted up to the inside both sides of seat adjusting part mounting groove, just gag lever post one end sliding connection be in the spacing inslot portion, gag lever post cooperation spacing groove uses, rotates the bearing housing and restricts for it is more stable to promote.
Preferably, the ball groove has been seted up to the spout inboard, the inside roll mounting in ball groove has a plurality of balls, and the inside ball in ball groove cooperates the slider to remove and rotate in the spout is inside, has reduced frictional force, has ensured that the power cylinder can the impact force can reach best effect, has improved the result of use.
Preferably, the seat mounting seat is provided with isofix interfaces at the inner sides of the two ends, the isofix interfaces meet the requirement of connection of seats with different connection modes, and the applicability of the detection equipment is improved.
Preferably, the power input ends of the motor a and the motor B are electrically connected with the power output end of the external power supply.
A test method of safety test equipment for a child safety seat of an automobile comprises the following steps:
firstly, connecting an automobile child safety seat to be detected with a seat installation seat above the right side of a buffer seat, inserting an isofix joint of the automobile child safety seat into an isofix interface for connection and fixation, then placing a child dummy for testing into the automobile child safety seat to be detected for fixation, electrifying a motor B inside a seat height adjusting assembly through an external power supply, driving a lifting screw rod to work and rotate by the motor B, driving a threaded sleeve on the outer side to work and rotate by the lifting screw rod, driving a bearing sleeve on the outer side to rotate by the threaded sleeve, sliding limiting rods on two sides of the bearing sleeve in a limiting groove, and limiting the rotation of the bearing sleeve, so that the bearing sleeve moves upwards on the outer side of the lifting screw rod, driving a lifting sleeve rod on the outer side and the seat installation seat to move upwards, adjusting the heights of the seat installation seat and the automobile child safety seat to be adjusted to a proper detection height;
step (B), then, punching a force multiplication cylinder at the bottom of the mounting groove by an external air pump, exhausting the gas in a rod cavity when compressed air is input from a rodless cavity, pushing a piston to move by the force formed by the pressure difference between two cavities of the cylinder acting on the piston, and enabling a piston to work in a plurality of sections of cylinders;
step (C), thirdly, when the impact block performs impact detection on the automobile child safety seat and the dummy, huge impact force is generated, so that huge vibration is generated on the base, the seat mounting seat and the device as a whole, after the seat mounting seat is collided, the lower stabilizing block is driven to move towards the right side in the base in a stabilizing groove in the base, meanwhile, the stabilizing block drives the damping shock absorption spring A on the right side to be stressed and contracted, the buffer seat simultaneously drives the damping shock absorption spring B on the right side to be contracted, the damping shock absorption spring B of the damping shock absorption spring A and oil in the cavity repeatedly flow into the other cavity from one cavity through different pores, at the moment, friction between the hole wall and the oil and internal friction between oil molecules form damping force to impact, so that impact energy of the buffer seat is converted into oil heat energy, and then is absorbed and emitted into the atmosphere by the shock absorber, and then the seat mounting seat and the sliding block are driven to move towards the left side of the buffer seat through return tension of the double-force cylinder, so that the impact block is reset;
step (D), then, a motor A inside the seat adjusting assembly is electrified through an external power supply, the motor A works and rotates to drive a transmission gear connected with a power output shaft to rotate, the transmission gear simultaneously drives a half-gear disc mounting base meshed and connected with the outer side to rotate, the half-gear disc mounting base is attached to a half-side gear to rotate to drive an upper mounting bracket and the seat height adjusting assembly to rotate, so that a seat mounting seat and a test dummy at the top of the seat height adjusting assembly are driven to rotate, and the impact angle is adjusted;
step (E), then, repeating the step (C), and detecting the side surface of the automobile child safety seat;
and (F) finally, detecting the impact force and the external damaged condition of the seat by using an internal detector of the child dummy inside the automobile child safety seat, and comparing the detected impact force with an industrial safety standard so as to detect the safety intensity of the automobile child safety seat.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the force-multiplying cylinder, the buffer block and the buffer seat are installed, during detection, the child safety seat to be detected is connected with the seat installation seat through the seat installation seat, then the force-multiplying cylinder is used for stamping through the external cylinder, the force-multiplying cylinder drives the impact seat and the buffer block to impact the child safety seat, so that the safety is detected, meanwhile, the huge buffer force generated by the impact seat can enable the base and the device to shake integrally, meanwhile, the service life is reduced, the buffer seat is matched with the damping shock absorption spring A and the damping shock absorption spring B on the bottom and the right side, the huge buffer force generated by the impact seat is effectively buffered while the accuracy of detection data is not influenced, and the integral stability and the service life of the device are improved.
2. According to the invention, by installing the seat adjusting assembly, the seat height adjusting assembly and the damping shock-absorbing spring C, the seat adjusting assembly is installed, the mounting bracket and the seat mounting seat above the mounting bracket can be driven to rotate by the internal motor A, the angle can be adjusted, the detection of the side surface of the seat can be realized on the premise of not dismounting the seat, the seat height adjusting assembly can adjust the height of the seat mounting seat in time, the detection of seats with different heights can be met, the applicability of the device is improved, meanwhile, the damping shock-absorbing spring C can buffer the impact force received by the seat height adjusting assembly, and the service life of the device is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the interior of the base of the present invention;
FIG. 3 is a schematic structural view of a damping shock spring B and a seat adjusting assembly mounting groove of the present invention;
FIG. 4 is a schematic view of the interior of the buffer seat according to the present invention;
FIG. 5 is a schematic view of the seat adjustment assembly of the present invention;
fig. 6 is a schematic view of the seat height adjustment assembly of the present invention.
In the figure: 1. a base; 2. a buffer seat; 3. a seat adjustment assembly; 301. mounting a bracket; 302. a damping spring C; 303. a seat height adjustment assembly; 304. a half gear disc mounting base; 305. a transmission gear; 306. a motor A; 3031. a motor B; 3032. a bearing housing; 3033. a threaded sleeve; 3034. lifting the loop bar; 3035. lifting the screw; 3036. a limiting rod; 4. mounting grooves; 5. a chute; 6. an impact base; 7. punching a block; 8. a slider; 9. a seat mount; 10. a force multiplying cylinder; 11. a damping spring A; 12. a stabilizing block; 13. a stabilizing slot; 14. a damping spring B; 15. a seat adjustment assembly mounting slot; 16. a limiting groove; 17. a ball bearing; 18. a ball groove; 19. an isofix interface.
Detailed Description
In order to solve the problems that the conventional safety testing equipment for the child safety seat of the automobile is large in size, long in stroke, inconvenient to operate, poor in stability, short in service life, incapable of adjusting the detection angle and height and poor in applicability due to the fact that the safety testing equipment cannot be used for adjusting the detection angle and height under long-term violent impact, the technical scheme of the safety testing equipment is clearly and completely described by combining with the attached drawings in the invention, and obviously, the described invention is only a part of invention but not all invention. All other inventions obtained by those skilled in the art based on the invention without making creative efforts belong to the protection scope of the invention.
Referring to fig. 1-6, the present invention provides a safety testing device for a child safety seat of an automobile, including a base 1 and a shock-absorbing seat 2, wherein two sides of the interior of the base 1 are provided with stabilizing grooves 13, the right side of the interior of the stabilizing grooves 13 is fixedly provided with one end of a damping shock-absorbing spring a11, the other end of the damping shock-absorbing spring a11 is fixedly connected with a stabilizing block 12, the stabilizing block 12 is fixedly connected with the bottom of the shock-absorbing seat 2, two ends of the right side of the shock-absorbing seat 2 are fixedly connected with one end of a damping shock-absorbing spring B14, the other end of the damping shock-absorbing spring B14 is fixedly connected with the left side above the base 1, the interior of the shock-absorbing seat 2 is provided with an installation groove 4, the left side of the interior of the installation groove 4 is fixedly provided with a double-force cylinder 10, two sides of the interior of the installation groove 4 are provided with sliding grooves 5, the interior of the sliding groove 5 is slidably connected with one end of a sliding block 8, the other end of the sliding block 8 is fixedly connected with a shock-absorbing seat 6, the right side of the shock-absorbing seat 6 is fixedly connected with a punching block 7, and strike seat 6 fixed connection in the power take off end top of multiple force cylinder 10, seat adjusting part mounting groove 15 has been seted up on cushion socket 2 right side, seat adjusting part 3 has been installed to the inside demountable installation of seat adjusting part mounting groove 15, seat adjusting part 3 top fixedly connected with seat mount pad 9, through installing multiple force cylinder 10, cushion socket 2 and seat adjusting part 3, multiple force cylinder 10 cooperates the inside spout 5 use of cushion socket 2, under the qualified circumstances of assurance test condition, the stroke and the size of check out test set have been reduced, the practicality is improved, cushion socket 2 effectively cushions the impact force that produces when detecting simultaneously, the holistic stability of check out test set and life have been improved, seat adjusting part 3 has satisfied different test methods and height simultaneously, the suitability of check out test set has been improved.
Further seat adjusting part 3 includes installing support 301, half gear dish installation base 304 and seat height adjusting part 303, the top fixed mounting of half gear dish installation base 304 has installing support 301, a plurality of damping shock absorber spring C302 of inside fixedly connected with of installing support 301, the inboard fixedly connected with seat height adjusting part 303 of damping shock absorber spring C302, half gear dish installation base 304 outside meshing is connected with driving gear 305, the power output shaft of the inside fixedly connected with motor A306 of driving gear 305, seat adjusting part 3 and damping shock absorber spring C302, can in time adjust the detection angle of seat mount 9, damping shock absorber spring C302 can protect seat height adjusting part 303 simultaneously, the suitability and the life of equipment have been improved.
The further seat height adjusting assembly 303 comprises a motor B3031, a lifting screw 3035 and a lifting sleeve rod 3034, a power output shaft of the motor B3031 is fixedly connected with the lifting screw 3035, the outer side of the lifting screw 3035 is in threaded connection with a threaded sleeve 3033, the outer side of the threaded sleeve 3033 is rotatably connected with a bearing sleeve 3032, one end of the lifting sleeve rod 3034 is fixedly connected to the outer side above the bearing sleeve 3032, the other end of the lifting sleeve rod 3034 is fixedly connected to the bottom of the seat mounting seat 9, the seat height adjusting assembly 303 can adjust the height of the seat mounting seat 9, the detection requirements of different heights are met, and the applicability of the detection equipment is improved.
Further outside both sides fixedly connected with gag lever post 3036 one end of bearing housing 3032, spacing groove 16 has been seted up to the inside both sides of seat adjusting part mounting groove 15, and gag lever post 3036 one end sliding connection is inside spacing groove 16, and gag lever post 3036 cooperation spacing groove 16 uses, restricts bearing housing 3032's rotation, has improved the stability of equipment operation.
Furthermore, isofix interfaces 19 are formed in the inner sides of the two ends of the seat mounting seat 9, the isofix interfaces 19 meet the connection requirements of different seats, and the applicability of the equipment is improved.
Further, the power input terminals of the motor a306 and the motor B3031 are electrically connected to the power output terminal of the external power source.
The test method of the safety test equipment for the child safety seat of the automobile comprises the following steps of:
step A, firstly, an automobile child safety seat to be detected is connected with a seat mounting seat 9 above the right side of a shock absorption seat 2, an isofix joint of the automobile child safety seat is inserted into an isofix interface 19 for connection and fixation, then a child dummy used for testing is placed into the automobile child safety seat to be detected for fixation, at the moment, a motor B3031 inside a seat height adjusting assembly 303 is electrified through an external power supply, the motor B3031 rotates to drive a lifting screw 3035 to rotate, the lifting screw 3035 simultaneously drives a threaded sleeve 3033 on the outer side to rotate, the threaded sleeve 3033 drives a bearing sleeve 3032 on the outer side to rotate, limiting rods 3036 on two sides of the bearing sleeve 3032 slide inside a limiting groove 16, the rotation of the bearing sleeve 3032 is limited, so that the bearing sleeve 3032 moves upwards on the outer side of the lifting screw 3035, the lifting sleeve rod 3034 on the outer side and the seat mounting seat 9 are driven to move upwards, the heights of the seat mounting seat 9 and the automobile child safety seat are adjusted to be suitable detection height;
step B, then, the multi-force cylinder 10 at the bottom of the mounting groove 4 is punched through an external air pump, when compressed air is input from a rodless cavity, the rod cavity exhausts air, the piston is pushed to move by the force formed by the pressure difference between two cavities of the cylinder acting on the piston, a piston works in each of the multiple sections of cylinders, and when the piston rod extends out, the pistons all generate thrust, so that a sliding block 8 connected with the multi-force cylinder 10 is driven to slide in sliding grooves 5 at two sides in the mounting groove 4, the sliding block 8 simultaneously drives an upper impact seat 6 and a punching block 7 to be flushed towards a seat mounting seat 9 at the right side of the shock absorption seat 2, and the automobile child safety seat and a dummy arranged above the seat mounting seat 9 are subjected to impact detection;
step C, when the impact block 7 performs impact detection on the automobile child safety seat and the dummy, a huge impact force is generated, so that the base 1, the seat mounting seat 9 and the device integrally generate huge vibration, after the seat mounting seat 9 is collided, the lower stabilizing block 12 is driven to move to the right side in the base 1 in a stabilizing groove 13 in the base 1, meanwhile, the stabilizing block 12 drives a damping shock-absorbing spring A11 on the right side to contract under stress, the shock-absorbing seat 2 simultaneously drives a damping shock-absorbing spring B14 on the right side to contract, the damping shock-absorbing spring A11, the damping shock-absorbing spring B14 and oil in the cavity repeatedly flow into another cavity from one cavity through different pores, at the moment, friction between the hole wall and the oil and internal friction between oil molecules form damping force on impact, so that the impact energy of the shock-absorbing seat 2 is converted into oil heat energy, then the oil heat energy is absorbed by a pulling force, the shock absorber is diffused into the atmosphere, then, the seat mounting seat 9 and the sliding block 8 are driven to move to the left side of the shock-absorbing seat 2 through the return stroke of the force-absorbing cylinder 10, and the impact block 7 is reset;
step D, subsequently, a motor A306 inside the seat adjusting assembly 3 is electrified through an external power supply, the motor A306 works and rotates to drive a transmission gear 305 connected with a power output shaft to rotate, the transmission gear 305 simultaneously drives a half-gear disc mounting base 304 connected with the outer side in a meshed mode to rotate, the half-gear disc mounting base 304 depends on a half-side gear to rotate to drive an upper mounting bracket 301 and the seat height adjusting assembly 303 to rotate, so that the seat mounting base 9 at the top of the seat height adjusting assembly 303 and a test dummy are driven to rotate, and the impact angle is adjusted;
e, then, repeating the step C, and detecting the side surface of the automobile child safety seat;
and step F, finally, detecting the impact force and the external damaged condition of the seat by using an internal detector of the child dummy inside the automobile child safety seat, and comparing the detected impact force with an industrial safety standard so as to detect the safety intensity of the automobile child safety seat.
The safety test equipment and the test method for the child safety seat of the automobile have the following advantages that:
1. according to the invention, the force-multiplying cylinder, the buffer block and the buffer seat are installed, during detection, the child safety seat to be detected is connected with the seat installation seat through the seat installation seat, then the force-multiplying cylinder is used for stamping through the external cylinder, the force-multiplying cylinder drives the impact seat and the buffer block to impact the child safety seat, so that the safety is detected, meanwhile, the huge buffer force generated by the impact seat can enable the base and the device to shake integrally, meanwhile, the service life is reduced, the buffer seat is matched with the damping shock absorption spring A and the damping shock absorption spring B on the bottom and the right side, the huge buffer force generated by the impact seat is effectively buffered while the accuracy of detection data is not influenced, and the integral stability and the service life of the device are improved.
2. According to the invention, by installing the seat adjusting assembly, the seat height adjusting assembly and the damping shock-absorbing spring C, the seat adjusting assembly is installed, the mounting bracket and the seat mounting seat above the mounting bracket can be driven to rotate by the internal motor A, the angle can be adjusted, the detection of the side surface of the seat can be realized on the premise of not dismounting the seat, the seat height adjusting assembly can adjust the height of the seat mounting seat in time, the detection of seats with different heights can be met, the applicability of the device is improved, meanwhile, the damping shock-absorbing spring C can buffer the impact force received by the seat height adjusting assembly, and the service life of the device is prolonged.
Although the present invention has been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a car children's safety seat safety test equipment, includes base (1) and cushion (2), its characterized in that: two sides of the interior of the base (1) are provided with stabilizing grooves (13), one end of a damping spring A (11) is fixedly arranged on the right side of the interior of the stabilizing groove (13), the other end of the damping spring A (11) is fixedly connected with a stabilizing block (12), and the stabilizing block (12) is fixedly connected with the bottom of the buffer seat (2), the two ends of the right side of the buffer seat (2) are fixedly connected with one end of a damping spring B (14), and the other end of the damping spring B (14) is fixedly connected with the left side above the base (1), an installation groove (4) is arranged in the buffer seat (2), a force doubling cylinder (10) is fixedly installed on the left side in the installation groove (4), sliding grooves (5) are arranged on two sides in the mounting groove (4), one end of a sliding block (8) is connected in the sliding groove (5) in a sliding way, the other end of the sliding block (8) is fixedly connected with an impact seat (6), the right side of the impact seat (6) is fixedly connected with a punching block (7), and the impact seat (6) is fixedly connected above the power output end of the double-force cylinder (10), a seat adjusting component mounting groove (15) is arranged on the right side of the buffer seat (2), the seat adjusting component (3) is detachably arranged in the seat adjusting component mounting groove (15), the seat adjusting component (3) is fixedly connected with a seat mounting seat (9) above.
2. The safety testing apparatus for child safety seats in automobiles according to claim 1, wherein: seat adjusting part (3) include installing support (301), half gear dish installation base (304) and seat height adjusting part (303), the top fixed mounting of half gear dish installation base (304) has installing support (301), a plurality of damping shock absorber spring C (302) of the inside fixedly connected with of installing support (301), damping shock absorber spring C (302) inboard fixedly connected with seat height adjusting part (303), half gear dish installation base (304) outside meshing is connected with driving gear (305), the power output shaft of driving gear (305) inside fixedly connected with motor A (306).
3. The automotive child safety seat safety test apparatus of claim 2, wherein: the seat height adjusting assembly (303) comprises a motor B (3031), a lifting screw rod (3035) and a lifting sleeve rod (3034), wherein a power output shaft of the motor B (3031) is fixedly connected with the lifting screw rod (3035), the outer side of the lifting screw rod (3035) is in threaded connection with a threaded sleeve (3033), the outer side of the threaded sleeve (3033) is rotatably connected with a bearing sleeve (3032), the outer side of the upper part of the bearing sleeve (3032) is fixedly connected with one end of the lifting sleeve rod (3034), and the other end of the lifting sleeve rod (3034) is fixedly connected to the bottom of the seat mounting seat (9).
4. The automotive child safety seat safety test apparatus of claim 3, wherein: the seat adjusting assembly is characterized in that one end of a limiting rod (3036) is fixedly connected to two outer sides of the bearing sleeve (3032), limiting grooves (16) are formed in two inner sides of the seat adjusting assembly mounting groove (15), and one end of the limiting rod (3036) is slidably connected to the inner portions of the limiting grooves (16).
5. The safety testing apparatus for child safety seats in automobiles according to claim 4, wherein: a ball groove (18) is formed in the inner side of the sliding groove (5), and a plurality of balls (17) are arranged in the ball groove (18) in a rolling mode.
6. The safety testing apparatus for child safety seats in automobiles according to claim 5, wherein: the seat mounting seat (9) is provided with isofix interfaces (19) at the inner sides of the two ends.
7. The automotive child safety seat safety test apparatus of claim 6, wherein: the power input ends of the motor A (306) and the motor B (3031) are electrically connected with the power output end of an external power supply.
8. Use of the safety testing device for child safety seats in vehicles according to any of claims 1 to 7, wherein: the method comprises the following steps:
firstly, connecting an automobile child safety seat to be detected with a seat mounting seat (9) above the right side of a buffer seat (2), inserting an isofix joint of the automobile child safety seat into an isofix interface (19) for connection and fixation, then placing a child dummy for testing into the automobile child safety seat to be detected for fixation, electrifying a motor B (3031) inside a seat height adjusting component (303) through an external power supply, driving a lifting screw rod (3035) to work and rotate by the working rotation of the motor B (3031), driving a threaded sleeve (3033) outside to work and rotate by the lifting screw rod (3035), driving a bearing sleeve (3032) outside to rotate by the threaded sleeve (3033), sliding limiting rods (3036) at two sides of the bearing sleeve (3032) in a limiting groove (16), limiting the rotation of the bearing sleeve (3032), and further realizing that the bearing sleeve (3032) moves upwards outside the lifting screw rod (3035) to drive a lifting sleeve rod (4) outside and the seat mounting seat (3039) to move upwards, and carrying out proper height adjustment on the seat mounting seat and the child safety seat to be detected;
step (B), then, the multi-force cylinder (10) at the bottom of the mounting groove (4) is punched through an external air pump, when compressed air is input from a rodless cavity, a rod cavity exhausts air, the pressure difference between two cavities of the cylinder acts on the force formed on the piston to push the piston to move, a piston works in each of the multiple sections of cylinders, and when a piston rod extends out, the piston generates thrust, so that a sliding block (8) connected with the multi-force cylinder (10) is driven to slide in sliding grooves (5) on two sides in the mounting groove (4), the sliding block (8) simultaneously drives an upper impact seat (6) and a punching block (7) to punch towards a seat mounting seat (9) on the right side of the buffer seat (2), and the automobile child safety seat and a dummy arranged above the seat mounting seat (9) are subjected to impact detection;
step (C), when the impact block (7) performs impact detection on the automobile child safety seat and the dummy, a huge impact force is generated, so that the base (1), the seat mounting seat (9) and the device generate huge vibration integrally, after the seat mounting seat (9) is collided, the lower stabilizing block (12) is driven to move to the right side in the base (1) in a stabilizing groove (13), the stabilizing block (12) drives the damping spring A (11) on the right side to be stressed and contracted, the buffer seat (2) simultaneously drives the damping spring B (14) on the right side to be contracted, the damping spring B (14) of the damping spring A (11) and oil in the cavity repeatedly flow into the other cavity from one cavity through different pores, at the moment, the friction between the pore wall and the oil and the internal friction between oil molecules form a damping force to impact, so that the impact energy of the buffer seat (2) is converted into the oil, the shock energy is absorbed by the shock absorber and dissipated into the atmosphere, and then the shock energy is returned to the buffer seat mounting seat (9) and the buffer block (7) to move to the left side, and the buffer block (7) is reset;
step (D), subsequently, a motor A (306) inside the seat adjusting assembly (3) is electrified through an external power supply, the motor A (306) works and rotates to drive a transmission gear (305) connected with a power output shaft to rotate, the transmission gear (305) simultaneously drives a half-gear disc mounting base (304) meshed and connected with the outer side to rotate, the half-gear disc mounting base (304) depends on a half-side gear to rotate to drive an upper mounting bracket (301) and the seat height adjusting assembly (303) to rotate, so that a seat mounting seat (9) at the top of the seat height adjusting assembly (303) and a test dummy are driven to rotate, and the impact angle is adjusted;
step (E), then, repeating the step (C), and detecting the side surface of the automobile child safety seat;
and (F) finally, detecting the impact force and the external damaged condition of the seat by using an internal detector of the child dummy inside the automobile child safety seat, and comparing the detected impact force with an industrial safety standard so as to detect the safety intensity of the automobile child safety seat.
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