CN117490998B - Safety belt performance testing device - Google Patents
Safety belt performance testing device Download PDFInfo
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- CN117490998B CN117490998B CN202311470729.0A CN202311470729A CN117490998B CN 117490998 B CN117490998 B CN 117490998B CN 202311470729 A CN202311470729 A CN 202311470729A CN 117490998 B CN117490998 B CN 117490998B
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- 238000012360 testing method Methods 0.000 title claims abstract description 61
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000011056 performance test Methods 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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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
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to the technical field of safety belt performance test, in particular to a safety belt performance test device which comprises a fixed disc, a fixed mechanism, a test mechanism and a moving mechanism.
Description
Technical Field
The invention relates to the technical field of safety belt performance test, and particularly provides a safety belt performance test device.
Background
The safety belt is a safety device for protecting personnel when working at a high place or falling from the high place, performance detection is required for the safety belt, wherein strength detection and tearing resistance detection are particularly important, the safety belt can be ensured to meet standard requirements through detecting the performance of the safety belt, effective personal safety protection can be provided, and the safety belt is also helpful for guaranteeing the safety of workers in working at the high place or other dangerous environments.
In performance detection of a seat belt, there are also the following problems: 1. when the performance of the safety belt is detected, the traditional safety belt is generally subjected to strength test and tearing resistance test by using different testing devices, and the safety belt to be detected needs to be subjected to reciprocating blanking and feeding during each performance detection, so that the operating steps are increased, and meanwhile, the working efficiency of the safety belt during detection is reduced.
2. When the performance of the safety belt is detected, the safety belt is tested under the same height in the traditional method, and the testing method cannot accurately simulate the working condition of workers when the safety belt is actually used, so that the testing effect is affected, and the safety performance of the safety belt cannot be accurately tested.
Therefore, in order to avoid influencing the working efficiency and the testing effect of the safety belt during performance testing, the invention provides a safety belt performance testing device.
Disclosure of Invention
Based on this, it is necessary to provide a safety belt performance test device, which aims to solve the problem that the working efficiency and the test effect of the safety belt during performance test are affected in the prior art.
In order to achieve the above purpose, the present invention is implemented by adopting the following technical scheme: the utility model provides a safety belt performance test device, includes fixed disc, the top central point of fixed disc puts and is provided with fixed establishment, and the fixed establishment top is provided with the testing mechanism who tests the intensity performance of safety belt, still is provided with the mobile mechanism who tests the tear resistance performance of safety belt on the fixed disc.
The utility model discloses a fixed disk, including fixed disk, spring rod, support column, drive assembly that fixed disk's top central point put rotation and set up, the top of fixed disk is provided with the drive assembly that control support column rotated, circular recess has been seted up at the top of fixed disk, and the top fixed mounting of support column has the round piece, have the threaded rod of placing in circular recess through threaded connection on the round piece, the top of the threaded rod is provided with the ascending firm board that is 匚 shape structures of opening, the displacement groove has been seted up to two vertical section opposite sides of firm board, be provided with sliding connection in the displacement inslot through electronic slider's horizontal plate, the horizontal segment bottom and the threaded rod rotation of firm board are connected, be connected through the spring rod between the horizontal segment bottom and the round piece of firm board, be provided with the adjusting part who adjusts firm board height on the support column.
The testing mechanism comprises a disc block fixedly mounted at the top of the stabilizing plate, a circular through groove is formed in the center of the disc block, circular through holes are uniformly formed in the top of the disc block along the circumferential direction, ropes are arranged in the circular through holes in a sliding mode, a mounting plate with a circular structure is fixedly mounted at the top of the disc block through a plurality of fixing rods, guide components for guiding the ropes are uniformly arranged at the bottom of the mounting plate along the circumferential direction, the two groups of guide components are respectively located at two positions close to the center of the mounting plate and far away from the center of the mounting plate, a first safety lock catch connected with a safety belt is hinged to one end bottom of the rope through a pin shaft after the circular through hole is formed, the other ends of the ropes are fixedly connected with the top of the horizontal plate after the other ends of the ropes pass through the circular through grooves jointly through the guide components, and the fixing components for fixing the ropes are further arranged at the top of the disc block through rotating components.
According to one embodiment of the invention, the moving mechanism comprises an annular plate sleeved outside a supporting column, a plurality of extending plates are uniformly and fixedly arranged on the side wall of the annular plate along the circumferential direction, the extending plates and the circular through holes are distributed in a staggered mode, the tops of the extending plates are hinged with second safety catches connected with a safety belt through rectangular plates, connecting plates are fixedly arranged on the opposite sides of the left and right symmetrical extending plates, second threaded rods connected with the connecting plates through threads are fixedly arranged at positions, close to the right side, of the tops of the fixed discs through forward and reverse rotating motors, and limiting rods connected with the connecting plates in a sliding mode are fixedly arranged at positions, close to the left side, of the tops of the fixed discs.
According to one embodiment of the invention, the driving assembly comprises a movable gear fixedly arranged on the support column and close to the lower position, a sliding groove is formed in the top of the fixed disc, a fixed block which is arranged in the sliding groove in a sliding manner is arranged in the sliding groove through a driving piece, and a movable rack which is in meshed transmission with the movable gear is fixedly arranged on the top of the fixed block.
According to one embodiment of the invention, the adjusting component comprises limit grooves which are uniformly formed in the side wall of the first threaded rod along the circumferential direction, a driven bevel gear is arranged on the first threaded rod and close to the upper side of the first threaded rod, the inner wall of the driven bevel gear is in sliding connection with the limit grooves on the first threaded rod through a sliding block, an annular groove is formed in the bottom of the driven bevel gear, an annular block is fixedly arranged on the inner wall of the circular groove and below the driven bevel gear, a push rod which is arranged in the annular groove in a sliding mode is fixedly arranged at the top of the annular block, a rotating rod is rotatably arranged on the side wall of the supporting column, a driving bevel gear which is meshed with the driven bevel gear is fixedly arranged at one end of the rotating rod, which is positioned on the outer side wall of the supporting column, and a Z-shaped handle is detachably arranged at one end of the rotating rod.
According to one embodiment of the invention, the guide assembly comprises a connecting block which is uniformly and fixedly arranged at the bottom of the mounting plate along the circumferential direction, a 匚 plate with a downward opening is fixedly arranged at the bottom of the connecting block, and a rotary roller for guiding the rope is rotatably arranged between two vertical sections of the 匚 plate.
According to one embodiment of the invention, the rotating assembly comprises a rotating plate which is arranged above a disc block and is in a cross-shaped structure, an annular chute is formed in the bottom of the rotating plate, a plurality of fixing columns which are arranged in the annular chute in a sliding manner are uniformly and fixedly arranged at the top of the disc block along the circumferential direction, an annular through groove is formed in the center position of the rotating plate, fixing teeth are uniformly and fixedly arranged in the annular through groove along the circumferential direction, and a driving gear which is in meshed transmission with the fixing teeth is fixedly arranged at the position of the disc block, which is positioned in the annular through groove, through an intermittent motor.
According to one embodiment of the invention, the fixing component comprises a first semi-arc-shaped plate fixedly arranged at the top of the disc block along the circumferential direction and positioned at the outer side of the rope, limiting blocks are uniformly and fixedly arranged at the top of the disc block and positioned at the inner side of the rope along the circumferential direction, round head plates are slidably arranged on the limiting blocks, one ends of the arc-shaped positions of the round head plates are contacted with the side wall of the rotating plate, a second semi-arc-shaped plate is fixedly arranged at the other ends of the round head plates, and the second semi-arc-shaped plate is connected with the limiting blocks through reset springs.
The above technical solutions in the embodiments of the present invention have at least one of the following technical effects:
according to the cooperation of the testing mechanism and the moving mechanism provided by the embodiment of the first aspect of the invention, when the performance of the safety belt is tested, the strength performance detection and the tear resistance performance detection of the safety belt can be realized by using one device, the complexity of the testing process can be reduced, and the two tests can be performed by using one device, so that the operation steps can be simplified, and the detection efficiency can be further improved.
Further, according to the cooperation of the fixing mechanism and the testing mechanism provided by the embodiment of the second aspect of the present invention, when the strength performance test is performed on the safety belt, the testing mechanism can be adjusted to different heights, and by performing the test at different heights, whether the performance and the quality of the safety belt are consistent or not can be detected, and whether the safety belt is used at a low height or a high height, the safety belt can provide the same protection level at different heights, so that the quality of the safety belt can be ensured.
Furthermore, according to the cooperation of the fixing mechanism, the testing mechanism and the moving mechanism provided by the embodiment of the third aspect of the invention, performance tests can be performed on a plurality of safety belts at the same time, and further, the working efficiency of the safety belts in the test process can be further improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a first perspective structure of a safety belt performance testing device according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a second perspective structure of a safety belt performance testing device according to an embodiment of the present invention.
Fig. 3 is a schematic view of a first partially cut-away perspective structure of a safety belt performance test device according to an embodiment of the present invention.
Fig. 4 is a schematic plan view of the present invention of fig. 3.
Fig. 5 is an enlarged view of a portion of the invention at M of fig. 4.
Fig. 6 is a schematic view of a second partially cut-away perspective structure of a safety belt performance test device according to an embodiment of the present invention.
Fig. 7 is an enlarged view of a portion at N of fig. 6 in accordance with the present invention.
Icon: 1-fixing a disc; 2-a fixing mechanism; 21-supporting columns; 22-a drive assembly; 221-a mobile gear; 222-fixing blocks; 223-moving rack; 23-circular blocks; 24-a first threaded rod; 25-securing the plate; 26-horizontal plates; 27-spring rod; 28-an adjustment assembly; 281-driven bevel gear; 282-slider; 283-annular block; 284-ejector pin; 285-rotating rod; 286-drive bevel gear; 287-Z-shaped handle; 3-a testing mechanism; 31-a disc block; 32-rope; 33-a fixed rod; 34-mounting plates; 35-a guide assembly; 351-connecting blocks; 352- 匚 plates; 353-rotating rollers; 36-first safety lock catch; 37-a rotating assembly; 371-rotating plate; 372-fixing the column; 373-fixed teeth; 374-a driving gear; 38-a fixed assembly; 381-semi-arcuate plate number one; 382-limited block; 383-round head plate; 384-second semi-arc plate; 385-return spring; 4-a moving mechanism; 41-an annular plate; 42-extending the plate; 43-rectangular plate; 44-second safety lock catch; 45-connecting plates; 46-a second threaded rod; 47-limit bar.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 and 2, a safety belt performance testing device comprises a fixed disc 1, a fixing mechanism 2 is arranged at the center of the top of the fixed disc 1, a testing mechanism 3 for testing the strength performance of a safety belt is arranged above the fixing mechanism 2, and a moving mechanism 4 for testing the tear resistance performance of the safety belt is further arranged on the fixed disc 1.
Referring to fig. 2 and 3, the fixing mechanism 2 includes a support column 21 rotatably disposed at a central position of a top of the fixing disc 1, a driving assembly 22 for controlling the support column 21 to rotate is disposed at a top of the fixing disc 1, a circular groove is disposed at a top of the support column 21, a circular block 23 is fixedly disposed at a top of the support column 21, a first threaded rod 24 disposed in the circular groove is in threaded connection with the circular block 23, a fixing plate 25 having an upward-opening 匚 -shaped structure is disposed at a top of the first threaded rod 24, displacement grooves are disposed on opposite surfaces of two vertical sections of the fixing plate 25, a horizontal plate 26 slidably connected in the displacement grooves is disposed in the displacement grooves through an electric slider, a horizontal section bottom of the fixing plate 25 is rotatably connected with the first threaded rod 24, and an adjusting assembly 28 for adjusting a height of the fixing plate 25 is disposed on the support column 21.
In the original state, firstly, the height of the test mechanism 3 above the stabilizing plate 25 is adjusted according to the adjusting component 28, the strength of the safety belt is tested according to the difference of the heights of the test mechanism 3, the strength test of a plurality of safety belts under the same weight can be finished through the matching of the test mechanism 3 and the adjusting component 28 after the lifting is finished (shown in fig. 4), the strength test of the safety belts under the same weight can be simulated by increasing the weight on the human body model, the safety belts under the same height can be guaranteed to provide the same protection level, the quality of the safety belts is further guaranteed, after the height of the test mechanism 3 is adjusted, the safety belts to be tested are all worn on a human body model in batches, the safety belts to be tested can be tested in the same time, the safety belts can be tested under the same height, the same load can be judged by observing the different weight, the safety belts can be tested in the same time, and the safety belt can be tested by the same weight, and the safety belt can be judged in the same time, and the safety model can be used for carrying the safety belt can be judged.
Referring to fig. 4 and 5, the adjusting component 28 includes a limit groove uniformly formed on a side wall of the first threaded rod 24 along a circumferential direction, a driven bevel gear 281 is disposed on the first threaded rod 24 and close to the upper side, an inner wall of the driven bevel gear 281 is slidably connected with the limit groove on the first threaded rod 24 through a sliding block 282, an annular groove is formed at a bottom of the driven bevel gear 281, an annular block 283 is fixedly mounted on an inner wall of the circular groove and below the driven bevel gear 281, a top of the annular block 283 is fixedly mounted with a push rod 284 slidably disposed in the annular groove, a rotary rod 285 is rotatably disposed on a side wall of the support column 21, a driving bevel gear 286 engaged with the driven bevel gear 281 is fixedly disposed at one end of the rotary rod 285 located in the circular groove, and a zigzag handle 287 is detachably disposed at one end of the rotary rod 285 located on an outer side wall of the support column 21.
When the height of the stabilizing plate 25 needs to be adjusted, the Z-shaped handle 287 can be installed on the rotary rod 285, at the moment, the Z-shaped handle 287 is rotated forwards or reversely, the Z-shaped handle 287 enables the rotary rod 285 to drive the driving bevel gear 286 to rotate, the driving bevel gear 286 drives the driven bevel gear 281 to rotate, at the moment, under the limit of the sliding block 282, the first threaded rod 24 is driven to rotate, the first threaded rod 24 rotates and simultaneously under the thread effect of the circular block 23 and the limit effect of the spring rod 27, the first threaded rod 24 pushes the stabilizing plate 25 to move upwards or downwards, the height of the test mechanism 3 on the stabilizing plate 25 is adjusted, and the test mechanism 3 is adjusted to enable the safety belt to be tested at different heights.
Referring to fig. 2 and 3, the test mechanism 3 includes a disc block 31 fixedly mounted at the top of the stabilizing plate 25, a circular through slot is formed in the center of the disc block 31, a circular through hole is uniformly formed in the top of the disc block 31 along the circumferential direction, a rope 32 is slidably disposed in the circular through hole, a mounting plate 34 with a circular structure is fixedly mounted at the top of the disc block 31 through a plurality of fixing rods 33, guide assemblies 35 for guiding the rope 32 are uniformly disposed at the bottom of the mounting plate 34 along the circumferential direction, the guide assemblies 35 are provided with two groups and are respectively located at two positions close to the center of the mounting plate 34 and far from the center of the mounting plate 34, a first safety catch 36 connected with a safety belt is hinged at one end bottom of the rope 32 through a pin shaft after passing through the circular through hole, the other ends of the ropes 32 are fixedly connected with the top of the horizontal plate 26 after passing through the circular through slots together through the guide assemblies 35, and a fixing assembly 38 for fixing the rope 32 is further disposed at the top of the disc block 31 through the rotating assembly 37.
After the height of the testing mechanism 3 is adjusted, the safety belts to be tested are all worn on the mannequin in batches, the safety lock catch 36 is connected with the safety belts, the fixing component 38 is not fixed by the rotating component 37, the horizontal plate 26 is enabled to move downwards in the displacement groove by the aid of the electric sliding block, the safety belts worn on the mannequin are simultaneously driven to move upwards by the aid of the plurality of ropes 32 under the guiding action of the guiding component 35, after the safety belts are moved to the proper height, the safety belts worn on the mannequin are limited and fixed by the aid of the fixing component 38, the electric sliding block is started to enable the horizontal plate 26 to move upwards in the displacement groove after the safety belts are limited and fixed, the ropes 32 are in a loose state, the ropes 32 are not limited and fixed by the rotating component 37 by the aid of the fixing component 38, the ropes 32 in the loose state are enabled to fall rapidly under the gravity of the mannequin at the moment, free falling body movement is achieved, and the safety belts on the mannequin can be tested.
Referring to fig. 3, the guiding assembly 35 includes a connecting block 351 uniformly and fixedly installed at the bottom of the mounting plate 34 along the circumferential direction, a 匚 plate 352 with a downward opening is fixedly installed at the bottom of the connecting block 351, and a rotating roller 353 for guiding the rope 32 is rotatably disposed between two vertical sections of the 匚 plate 352.
The effect of direction can be played to a plurality of ropes 32 through the guide component 35 that sets up, and then can be convenient for later stage carry out intensity test simultaneously to a plurality of safety belts of wearing on mannequin, and a plurality of simultaneous tests then improve work efficiency, and then work efficiency when reinforcing the test, when carrying out intensity test to the safety belt of wearing on mannequin, can be convenient for rise and decline of rope 32 through the rotatory roller 353 that sets up on guide component 35.
Referring to fig. 3 and 6, the rotating assembly 37 includes a rotating plate 371 with a cross-shaped structure disposed above the disc block 31, an annular chute is formed at the bottom of the rotating plate 371, a plurality of fixing posts 372 slidably disposed in the annular chute are uniformly and fixedly mounted at the top of the disc block 31 along the circumferential direction, an annular through slot is formed at the center of the rotating plate 371, fixing teeth 373 are uniformly and fixedly mounted in the annular through slot along the circumferential direction, and a driving gear 374 engaged with the fixing teeth 373 is fixedly mounted at the position of the disc block 31 in the annular through slot through an intermittent motor.
Referring to fig. 6 and 7, the fixing assembly 38 includes a first semi-arc plate 381 fixedly mounted at a position of the top of the disc block 31 along the circumferential direction and located outside the rope 32, a limiting block 382 is uniformly and fixedly mounted at a position of the top of the disc block 31 and located inside the rope 32 along the circumferential direction, a circular head plate 383 is slidably disposed on the limiting block 382, one end of the arc-shaped portion of the circular head plate 383 is contacted with a side wall of the rotating plate 371, a second semi-arc plate 384 is fixedly mounted at the other end of the circular head plate 383, and the second semi-arc plate 384 is connected with the limiting block 382 through a return spring 385.
Firstly, the intermittent motor is started to enable the active gear 374 to drive the rotating plate 371 on the fixed teeth 373 to rotate, at the moment, the round head plate 383 on the second semi-arc-shaped plate 384 is always in contact with the side wall of the rotating plate 371 under the action of the reset spring 385, when the round head plate 383 is in contact with the arc surface of the concave part of the rotating plate 371, the second semi-arc-shaped plate 384 is far away from the first semi-arc-shaped plate 381 under the action of the reset spring 385, and then the rope 32 is not fixed, when the intermittent motor continues to rotate, the round head plate 383 is enabled to be in contact with the arc surface of the convex part of the rotating plate 371, and the rotating plate 371 is enabled to extrude the round head plate 383 to drive the second semi-arc-shaped plate 384 to limit and fix the rope 32.
Referring to fig. 2, the driving assembly 22 includes a moving gear 221 fixedly mounted on the supporting column 21 near the lower position, a sliding groove is formed at the top of the fixed disk 1, a fixed block 222 slidably disposed in the sliding groove is disposed in the sliding groove through a driving member, and a moving rack 223 engaged with the moving gear 221 is fixedly mounted at the top of the fixed block 222.
Referring to fig. 1 and 2, the moving mechanism 4 includes an annular plate 41 sleeved outside the support column 21, a plurality of extending plates 42 are uniformly and fixedly installed on the side wall of the annular plate 41 along the circumferential direction, the plurality of extending plates 42 and the circular through holes are distributed in a staggered manner, the tops of the extending plates 42 are hinged with a second safety catch 44 connected with a safety belt through a rectangular plate 43, connecting plates 45 are fixedly installed on the opposite sides of the extending plates 42 in a bilateral symmetry manner, a second threaded rod 46 connected with the connecting plates 45 through threads is fixedly installed at the position, close to the right side, of the top of the fixed disc 1 through a forward and reverse rotating motor, and a limiting rod 47 connected with the connecting plates 45 in a sliding manner is fixedly installed at the position, close to the left side, of the top of the fixed disc 1.
After the strength test is finished on the safety belt, the safety belt is subjected to the tear resistance test, at this time, the driving piece (the electric sliding block or the electric push rod) is started to enable the fixed block 222 to move in the sliding groove, and then the movable rack 223 is driven to move, so that the movable rack 223 drives the support column 21 on the movable gear 221 to rotate by a certain angle, the position of the rope 32 on the disc block 31 corresponds to the position of the rectangular plate 43 on the plurality of extension plates 42, at this time, the mannequin wearing the safety belt is lifted up again by the rope 32, the second safety catch 44 on the rectangular plate 43 is also fixed on the safety belt, after the safety catch is fixed, the forward and backward rotation motor is started, and then the second threaded rod 46 is driven to rotate, at this time, under the effect of the limiting rod 47, the connecting plate 45 drives the extension plates 42 to slowly move downwards, and then the second safety catch 44 on the rectangular plate 43 pulls the safety belt to move downwards, and the damage condition of the surface of the safety belt is observed within the test force range (namely when moving downwards to the test distance) is evaluated, and the tear resistance of the safety belt material is evaluated.
The concrete work is as follows:
in the first step, in the original state, the height of the test mechanism 3 above the stabilizing plate 25 is adjusted according to the set adjusting component 28, the strength of the safety belt is tested according to the difference of the heights of the test mechanism 3, and then the safety belt worn on the mannequin is hoisted through the test mechanism 3 (as shown in fig. 4).
The second step, the rope 32 after a plurality of removal is fixed to the fixed subassembly 38 simultaneously through the rotating assembly 37 that sets up next, after spacing fixed, start electronic slider and make horizontal plate 26 upwards remove in the displacement inslot, and then make rope 32 be in the lax state, when removing suitable height, the rethread rotating assembly 37 no longer carries out spacing fixed to rope 32 with fixed subassembly 38, makes rope 32 of lax state drop fast under the gravity of mannequin this moment, and then realizes free fall motion, and then can carry out intensity test to the safety belt of wearing on the mannequin.
And thirdly, finally, starting a driving piece (an electric sliding block or an electric push rod) to enable the fixed block 222 to move in the sliding groove, further driving the movable rack 223 to move, enabling the movable rack 223 to drive the supporting column 21 on the movable gear 221 to rotate by a certain angle, enabling the position of the rope 32 on the disc block 31 to correspond to the positions of the rectangular plates 43 on the plurality of stretching plates 42, at the moment, hanging up the mannequin wearing the safety belt again by using the rope 32, then fixing the second safety catch 44 on the rectangular plates 43 on the safety belt, after fixing, starting the forward and backward rotation motor to rotate the second threaded rod 46, at the moment, under the action of the limiting rod 47, enabling the connecting plate 45 to drive the stretching plates 42 to move downwards slowly, further enabling the second safety catch 44 on the rectangular plates 43 to pull the safety belt to move downwards, observing the damage condition of the surface of the safety belt within the testing force range (namely when moving downwards to the testing distance), and further evaluating the tear resistance of the safety belt material.
In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality", "a plurality of groups" is two or more.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered in the scope of the present invention.
Claims (1)
1. The utility model provides a safety belt capability test device which characterized in that: the safety belt testing device comprises a fixed disc (1), wherein a fixing mechanism (2) is arranged at the center of the top of the fixed disc (1), a testing mechanism (3) for testing the strength performance of the safety belt is arranged above the fixing mechanism (2), and a moving mechanism (4) for testing the tear resistance performance of the safety belt is further arranged on the fixed disc (1); wherein:
The fixing mechanism (2) comprises a supporting column (21) which is rotatably arranged at the center of the top of the fixing disc (1), a driving component (22) which is used for controlling the supporting column (21) to rotate is arranged at the top of the fixing disc (1), a circular groove is formed in the top of the supporting column (21), a circular block (23) is fixedly arranged at the top of the supporting column (21), a first threaded rod (24) which is placed in the circular groove is connected onto the circular block (23) through threads, a fixing plate (25) with an upward opening and a 匚 -shaped structure is arranged at the top of the first threaded rod (24), displacement grooves are formed in the opposite surfaces of two vertical sections of the fixing plate (25), a horizontal plate (26) which is slidably connected in the displacement grooves is arranged in the displacement grooves through an electric sliding block, the bottom of the horizontal section of the fixing plate (25) is rotatably connected with the first threaded rod (24), and an adjusting component (28) which is used for adjusting the height of the fixing plate (25) is arranged on the supporting column (21);
The testing mechanism (3) comprises a disc block (31) fixedly arranged at the top of the stabilizing plate (25), a circular through groove is formed in the center position of the disc block (31), circular through holes are uniformly formed in the top of the disc block (31) along the circumferential direction, ropes (32) are slidably arranged in the circular through holes, a mounting plate (34) with a circular structure is fixedly arranged at the top of the disc block (31) through a plurality of fixing rods (33), guide assemblies (35) for guiding the ropes (32) are uniformly arranged at the bottom of the mounting plate (34) along the circumferential direction, the guide assemblies (35) are in two groups and are respectively positioned at two positions close to the center of the mounting plate (34) and far away from the center of the mounting plate (34), a first safety lock catch (36) connected with a safety belt is hinged at one end bottom of each rope (32) through a pin shaft after the circular through hole is penetrated, the other ends of the ropes (32) are fixedly connected with the top of the horizontal plate (26) through the guide assemblies (35) after the circular through grooves together, and the fixing assemblies (38) for fixing the ropes (32);
The guide assembly (35) comprises a connecting block (351) which is uniformly and fixedly arranged at the bottom of the mounting plate (34) along the circumferential direction, a 匚 plate (352) with a downward opening is fixedly arranged at the bottom of the connecting block (351), and a rotary roller (353) which is used for guiding the rope (32) is rotatably arranged between two vertical sections of the 匚 plate (352);
The rotary assembly (37) comprises a rotary plate (371) which is arranged above a disc block (31) and is in a cross-shaped structure, an annular chute is formed in the bottom of the rotary plate (371), a plurality of fixing columns (372) which are arranged in the annular chute in a sliding manner are uniformly and fixedly arranged at the top of the disc block (31) along the circumferential direction, an annular through groove is formed in the central position of the rotary plate (371), fixing teeth (373) are uniformly and fixedly arranged in the annular through groove along the circumferential direction, and a driving gear (374) which is in meshed transmission with the fixing teeth (373) is fixedly arranged at the position, located in the annular through groove, of the disc block (31) through an intermittent motor;
The fixing assembly (38) comprises a first semi-arc-shaped plate (381) fixedly arranged at the top of the disc block (31) along the circumferential direction and positioned at the outer side of the rope (32), limiting blocks (382) are uniformly and fixedly arranged at the top of the disc block (31) and positioned at the inner side of the rope (32) along the circumferential direction, round head plates (383) are arranged on the limiting blocks (382) in a sliding mode, one ends of the arc-shaped positions of the round head plates (383) are contacted with the side wall of the rotating plate (371), a second semi-arc-shaped plate (384) is fixedly arranged at the other ends of the round head plates (383), and the second semi-arc-shaped plate (384) is connected with the limiting blocks (382) through reset springs (385);
The moving mechanism (4) comprises an annular plate (41) sleeved outside the supporting column (21), a plurality of extending plates (42) are uniformly and fixedly arranged on the side wall of the annular plate (41) along the circumferential direction, the extending plates (42) and the circular through holes are distributed in a staggered mode, second safety catches (44) connected with a safety belt are hinged to the tops of the extending plates (42) through rectangular plates (43), connecting plates (45) are fixedly arranged on opposite surfaces of the extending plates (42) which are bilaterally symmetrical, a second threaded rod (46) connected with the connecting plates (45) through threads is fixedly arranged at the position, close to the right side, of the top of the fixed disc (1) through a positive and negative rotating motor, and a limiting rod (47) connected with the connecting plates (45) in a sliding mode is fixedly arranged at the position, close to the left side, of the top of the fixed disc (1);
The driving assembly (22) comprises a movable gear (221) fixedly arranged on the support column (21) at a position close to the lower part, a sliding groove is formed in the top of the fixed disc (1), a fixed block (222) arranged in the sliding groove in a sliding manner is arranged in the sliding groove through a driving piece, and a movable rack (223) meshed with the movable gear (221) for transmission is fixedly arranged at the top of the fixed block (222);
The utility model provides an adjusting part (28) is including the spacing groove of evenly seting up along circumference in the lateral wall of threaded rod (24), be provided with driven bevel gear (281) near the top on threaded rod (24), the inner wall of driven bevel gear (281) is through slider (282) and the spacing groove sliding connection on threaded rod (24), the annular channel has been seted up to the bottom of driven bevel gear (281), annular piece (283) are just located the below fixed mounting of driven bevel gear (281) to the inner wall of circular recess, the top fixed mounting of annular piece (283) has ejector pin (284) of slip setting in the annular channel, the lateral wall rotation of support column (21) is provided with rotary rod (285), the one end fixed mounting that rotary rod (285) are located circular recess has with driven bevel gear (281) meshing transmission, the one end detachably that rotary rod (285) are located support column (21) lateral wall is provided with Z font handle (287).
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