CN117705613A - Comprehensive test device and test method for falling protective equipment - Google Patents
Comprehensive test device and test method for falling protective equipment Download PDFInfo
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- CN117705613A CN117705613A CN202311609348.6A CN202311609348A CN117705613A CN 117705613 A CN117705613 A CN 117705613A CN 202311609348 A CN202311609348 A CN 202311609348A CN 117705613 A CN117705613 A CN 117705613A
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- 238000012360 testing method Methods 0.000 title claims abstract description 196
- 230000001681 protective effect Effects 0.000 title claims abstract description 19
- 238000010998 test method Methods 0.000 title claims description 4
- 230000003068 static effect Effects 0.000 claims abstract description 65
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 14
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 241000282326 Felis catus Species 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 5
- 238000009863 impact test Methods 0.000 abstract description 4
- 230000001174 ascending effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000872 buffer Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention discloses a comprehensive testing device and a testing method for falling protective equipment, belonging to the technical field of comprehensive testing of falling protective equipment, and comprising a base; two groups of side frames respectively arranged on two sides of the top of the base; a mounting assembly for securing two sets of said side frames to the top of the base; a plurality of groups of support bars for connecting the two groups of side frames together; according to the invention, the rolling component drives the static test component and the dynamic test component, the static test component is used for carrying out static test on the fire safety belt or the safety rope tied on the test dummy, and the dynamic test component is used for carrying out dynamic impact test on the fire safety belt tied on the test dummy. Meanwhile, a method for testing static tensile properties including breaking strength and elongation of the fire safety rope is provided.
Description
Technical Field
The invention belongs to the technical field of comprehensive testing of falling protective equipment, and particularly relates to a comprehensive testing device and a testing method for falling protective equipment.
Background
In the fire control field, the protective equipment that falls includes the apparatus that is used for the protection of falling such as fire control safety belt, fire control safety sling and fire control safety rope, fire control safety belt, fire control safety sling and fire control safety rope are the firefighter and are used for ascending a height the operation in the combat of putting out a fire, protection articles for use that protection oneself prevention was fallen casualties, it uses with other devices such as riser, descender, pulley device and safety hook in a complete set, have the function of saving oneself and rescue personnel, fire control safety belt, fire control safety sling and fire control safety rope need detect the performance when producing, so judge whether the product is qualified, can detect through tensile test and impact test etc..
The utility model discloses a chinese patent with publication number CN216410900U discloses a fire control is with safety belt bearing capacity detection device, belongs to fire control safety technical field, including base, slide bar a, slide bar B, equal fixed mounting in base top both sides has slide bar a, and common fixed mounting has slide bar B between two slide bar a, is provided with damper and fixed establishment respectively above the base, and slide bar a outside is close to the equal nested bradyseism spring that is provided with in movable block one side, and the movable block side all rotates and is provided with the connecting rod, and slide bar a top is provided with the stopper simultaneously. This patent removes to both sides owing to the pulling of hydraulic stem through the backup pad, removes through the movable block that the connecting rod made its one end set up of pressing, and then buffers the pulling force that the backup pad received through damping spring and damping spring's dual function, prevents when the pulling force of test fire control waistband reached the limit, and the fire control safety belt produced the fracture after, and the pulling force that the backup pad received is too big and produces the damage.
The fire-fighting safety belt bearing capacity detection device in the patent can only test the static tensile property of the fire-fighting safety belt in actual use, but does not test the dynamic falling tensile property of the fire-fighting safety belt, and can not simulate the falling test of the safety belt in a real environment, so that whether the safety belt achieves the due protection effect or not can not be simulated, and the result tested by the one-sided testing method is inaccurate. Nor was the fire safety line tested. Therefore, we propose a comprehensive testing device for falling protection equipment to solve the problems existing in the prior art, so that the comprehensive testing device can perform static stretching and dynamic impact performance testing on the anti-collision safety belt to improve the accuracy of the testing result. Meanwhile, a test method is provided for static tensile properties including breaking strength and elongation of the fire safety rope.
Disclosure of Invention
The invention aims to provide a comprehensive testing device and a testing method for falling protection equipment, which are used for solving the problems that in the prior art, when the device for detecting the bearing capacity of a fire-fighting safety belt is in actual use, only the static tensile property of the fire-fighting safety belt can be tested, but the dynamic falling tensile property of the fire-fighting safety belt is not tested, so that the result tested by the one-sided testing method is inaccurate, and the static tensile property such as breaking strength and elongation of the fire-fighting safety belt cannot be tested.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a comprehensive testing device for falling protective equipment comprises a base; two groups of side frames respectively arranged on two sides of the top of the base; a mounting assembly for securing two sets of said side frames to the top of the base; a plurality of groups of support bars for connecting the two groups of side frames together; the support frame is arranged between the two groups of side frames, and the top of the support frame is provided with a winding component; the static testing component is connected with the winding component and used for testing the static tensile property of the fire safety belt; and the dynamic testing component is connected with the winding component and used for testing the dynamic impact performance of the fire safety belt.
Preferably, the winding assembly comprises a driving motor fixedly arranged on the top of the supporting frame; a rotating rod connected with an output shaft key of the driving motor; the supporting seat is arranged at the top of the supporting frame and used for carrying out auxiliary support on the rotating rod; the winding wheel is arranged on the surface of the rotating rod; and the traction rope is wound on the surface of the winding wheel.
Preferably, the static test assembly comprises two sets of bottom plates fixedly mounted between two sets of the side frames; the connecting plates are fixedly arranged between the two groups of bottom plates; the hanging ring is arranged at the tops of the bottom plate and the connecting plate; the static tension sensor is connected to one end of the traction rope far away from the winding wheel; and the suspender is arranged at the induction end of the static tension sensor.
Preferably, the dynamic test assembly comprises a mounting frame fixedly mounted on one side of the support frame; a dynamic impact sensor fixed to the mounting frame; the connecting belt is arranged at the sensing end of the dynamic impact sensor; and an electromagnetic lifting hook which is used for connecting the traction rope with the test dummy and has an automatic unhooking function.
Preferably, the electromagnetic lifting hook comprises an electromagnetic chuck, a connecting rope is fixedly arranged at the top of the electromagnetic chuck, and one end of the connecting rope, which is far away from the electromagnetic chuck, is fixedly connected with one end of the traction rope; a metal disc magnetically attracted to the bottom of the electromagnetic chuck; and the hook is fixedly arranged at the bottom of the metal disc and used for being connected with the test dummy.
Preferably, the device further comprises a guide assembly for adjusting the traction direction of the traction rope in the dynamic test process, wherein the guide assembly comprises a mandril fixedly arranged between two groups of side frames; and the pulley is fixedly arranged at the bottom of the ejector rod, and one end of the traction rope penetrates through the pulley and is connected with the connecting rope at the top of the electromagnetic chuck.
Preferably, the mounting assembly comprises a mounting plate fixedly mounted at the bottoms of the two groups of side frames; the triangular stabilizing plate is arranged at the top of the mounting plate, and one side of the triangular stabilizing plate is welded with the surface of the side frame; and a locking assembly for locking and securing the mounting plate to the top of the base.
Preferably, the locking assembly comprises a locking screw fixedly mounted on the top of the base; the connecting holes are formed in the surface of the mounting plate and correspond to the locking screw rods, and the top ends of the locking screw rods penetrate through the connecting holes and extend to the upper part of the mounting plate; and the locking nut is in threaded connection with the top end of the locking screw rod, and the bottom of the locking nut is attached to the top of the mounting plate.
Preferably, the device further comprises a ladder mounted on one side of one group of the side frames, and a storage basket is fixedly mounted on one side of one group of side frames corresponding to the ladder.
Based on the comprehensive testing device of the falling protective equipment, the invention also discloses a testing method of the comprehensive testing device of the falling protective equipment, which comprises two steps of dynamic testing and static testing, wherein:
the dynamic test comprises the following steps:
step one: the traction rope is inserted through the pulley and connected with the connecting rope at the top of the electromagnetic chuck;
step two: magnetically attracting the top of the metal disc to the bottom of the electromagnetic chuck, and hanging the test dummy on a hook at the bottom of the metal disc;
step three: tying the fire safety belt to be tested on the body of the test dummy, and tying a connecting belt connected with the sensing end of the dynamic impact sensor on the fire safety belt to be tested;
step four: winding the traction rope through a winding assembly to raise the test dummy to a test height;
step five: the electromagnetic chuck is powered off to release the test dummy, so that the test dummy can fall freely downwards, and the dynamic impact sensor is used for testing the impact force of the fire safety belt in the falling process of the test dummy;
the static test comprises the following steps:
step one: fixing the bottom of the test dummy through a hanging ring;
step two: connecting a fire safety rope or a fire safety belt tied on the test dummy with the static tension sensor;
step three: the traction rope is wound through the winding component, and the static tension of the fire safety belt or the fire safety rope is tested through the static tension sensor.
The invention has the technical effects and advantages that: compared with the prior art, the comprehensive testing device and the testing method for the falling protection equipment provided by the invention have the following advantages:
1. according to the device, the rolling component drives the static test component and the dynamic test component, the static test component is used for carrying out static test on the fire safety rope or the fire safety belt tied on the test dummy, and the dynamic test component is used for carrying out dynamic impact force test on the fire safety belt tied on the test dummy; and meanwhile, the static performance such as breaking strength and elongation of the fire-proof safety rope can be tested.
2. The invention can provide stable tension for the fire safety belt in the test process through the winding component, the whole test device can be installed and fixed on the base through the arrangement of the installation component so as to improve the use stability of the device, and the test dummy can be released to simulate a scene of falling at a high place after being lifted to the test height in the dynamic test process through the arrangement of the electromagnetic lifting hook, so that the test is more vivid, and the test dummy can be lifted at a position far away from the side frame and the support frame through the arrangement of the guide component so as to prevent the side frame and the support frame from interfering the movement of the test dummy.
Drawings
FIG. 1 is a schematic diagram of a comprehensive test device for fall protection equipment according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a static test structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of a mounting assembly according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a suspension ring according to an embodiment of the present invention;
FIG. 5 is a schematic view of a winding assembly according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electromagnetic hook according to an embodiment of the present invention.
In the figure: 1. a base; 2. a side frame; 3. a support rod; 4. a support frame; 5. a driving motor; 6. a rotating rod; 7. a support base; 8. a winding wheel; 9. a traction rope; 10. a bottom plate; 11. a connecting plate; 12. a hanging ring; 13. a static tension sensor; 14. a boom; 15. a mounting frame; 16. a dynamic impact sensor; 17. a connecting belt; 18. an electromagnetic lifting hook; 19. an electromagnetic chuck; 20. a connecting rope; 21. a metal plate; 22. a hook; 23. a push rod; 24. a pulley; 25. a mounting plate; 26. a triangular stabilizing plate; 27. locking the screw rod; 28. a connection hole; 29. a lock nut; 30. a ladder stand; 31. and testing a protection platform.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the invention discloses a comprehensive testing device for falling protection equipment, which comprises a base 1; two groups of side frames 2 respectively arranged on two sides of the top of the base 1; still including installing the cat ladder 30 in one of them a set of side bearer 2 one side, and the one side of a set of side bearer 2 corresponding with cat ladder 30 still fixed mounting has test protection platform 31, through the setting of cat ladder 30, can be convenient for the user to walk on the top of side bearer 2 and overhaul the maintenance or install the dismantlement to the top structure of device, test protection platform 31's setting can provide necessary protection for the test personnel operation of ascending a height.
Preferably, the mounting assembly is used for fixing the two groups of side frames 2 on the top of the base 1, and comprises a mounting plate 25 fixedly mounted on the bottoms of the two groups of side frames 2; a triangular stabilizing plate 26 mounted on the top of the mounting plate 25, one side of the triangular stabilizing plate 26 being welded to the surface of the side frame 2; and a locking assembly for locking the mounting plate 25 to the top of the base 1; the locking assembly comprises a locking screw 27 fixedly arranged at the top of the base 1; the connecting holes 28 are formed in the surface of the mounting plate 25 and correspond to the locking screw rods 27, and the top ends of the locking screw rods 27 penetrate through the connecting holes 28 and extend to the upper side of the mounting plate 25; and a lock nut 29 screwed to the top end of the lock screw 27, the bottom of the lock nut 29 being fitted to the top of the mounting plate 25.
Through the setting of installation component, can install two sets of side frames 2 in the top of base 1, base 1 is the reinforced concrete pouring and forms in this embodiment, can play the steady support effect to this device. When installing the side frame 2, a user can attach the mounting plate 25 at the bottom of the side frame 2 to the top of the base 1, insert the connecting hole 28 on the surface of the mounting plate 25 on the surface of the locking screw 27, and then screw the locking nut 29 on the top of the locking screw 27 for locking and fixing the mounting plate 25 on the top of the base 1, so as to install and fix the using position of the side frame 2. It should be noted that, in this embodiment, several sets of triangular stabilizing plates 26 are mounted on top of the mounting plate 25, so as to improve the stability of the connection between the side frame 2 and the mounting plate 25.
Wherein, the device also comprises a plurality of groups of support rods 3 for connecting the two groups of side frames 2 together; by installing a plurality of groups of support rods 3 between the two groups of side frames 2, the two groups of side frames 2 can be connected and fixed together so as to improve the overall stability of the device.
It is worth to say, also include the support frame 4 installed between two groups of side frames 2, the top of the support frame 4 installs the rolling assembly; the winding assembly comprises a driving motor 5 fixedly arranged at the top of the supporting frame 4; a rotating rod 6 keyed to the output shaft of the driving motor 5; the supporting seat 7 is arranged at the top of the supporting frame 4 and used for carrying out auxiliary support on the rotating rod 6; the winding wheel 8 is arranged on the surface of the rotating rod 6; and a traction rope 9 wound on the surface of the winding wheel 8.
Through the setting of rolling subassembly, can be arranged in static test in-process to exert pulling force to fire control safety rope or fire control safety belt, user accessible external controller opens driving motor 5, and driving motor 5's output shaft can drive rolling wheel 8 and rotate and wind haulage rope 9, and then exerts pulling force to it through haulage rope 9 pulling fire control safety belt. During dynamic test, the winding assembly drives the test dummy to move so as to raise the test dummy to a test height.
Further, the device also comprises a static testing component which is connected with the winding component and is used for testing the static tensile property of the fire safety rope or the fire safety belt; the static test assembly comprises two groups of bottom plates 10 fixedly arranged between the two groups of side frames 2; a connection plate 11 fixedly installed between the two sets of bottom plates 10; a hanging ring 12 mounted on the top of the base plate 10 and the connecting plate 11; a static tension sensor 13 connected to one end of the traction rope 9 far away from the winding wheel 8; specifically, the static tension sensor 13 is model YZC-516, and the measuring range is 0-3t; and a boom 14 mounted to the sensing end of the static tension sensor 13.
Specifically, when performing the static test, the user first wears the fire safety rope or the fire safety belt on the test dummy, then fixes the leg of the test dummy on the hanging ring 12, and connects the fire safety belt on the hanging rod 14 at the sensing end of the static tension sensor 13. During testing, a user can wind the traction rope 9 through the winding component, and the traction rope 9 pulls the fire safety rope or the fire safety belt when being wound so as to statically test the fire safety rope or the fire safety belt.
Further, the fire safety belt dynamic impact test device also comprises a dynamic test assembly connected with the winding assembly and used for carrying out dynamic impact performance test on the fire safety belt, wherein the dynamic test assembly comprises a mounting frame 15 fixedly arranged on one side of the supporting frame 4; a dynamic impact sensor 16 fixed to the mounting frame 15; specifically, the dynamic impact sensor 16 model ZKHW1203 has a measuring range of 0-5t; a connecting belt 17 arranged at the sensing end of the dynamic impact sensor 16; the electromagnetic lifting hook 18 is used for connecting the traction rope 9 with the test dummy and has an automatic unhooking function, the electromagnetic lifting hook 18 comprises an electromagnetic chuck 19, a connecting rope 20 is fixedly arranged at the top of the electromagnetic chuck 19, and one end of the connecting rope 20, which is far away from the electromagnetic chuck 19, is fixedly connected with one end of the traction rope 9; a metal disk 21 magnetically attracted to the bottom of the electromagnetic chuck 19; and a hook 22 fixedly installed at the bottom of the metal plate 21 for connection with the test dummy.
Specifically, when the fire safety belt is dynamically tested, the user can tie the fire safety belt on the test dummy, then tie the connecting belt 17 on the fire safety belt, and the user also needs to hang the hook 22 on the head of the fire safety dummy, after the preparation work is finished, the user can wind the traction rope 9 through the winding assembly, the traction rope 9 can drive the test dummy to move upwards in the winding process, and the movement is stopped after the test dummy moves to the test height.
After the test dummy is lifted to the test height, the user can power off the electromagnetic lifting hook 18, the metal disc 21 and the electromagnetic chuck 19 are separated from the magnetic attraction state, the test dummy can fall down freely, the fire safety belt can be pulled down through the connecting belt 17 in the falling process, and the user can read the impact force of the fire safety belt in the dynamic test state through the dynamic impact sensor 16.
It should be noted that, in this embodiment, the dynamic test and the static test are not sequential, and in addition, in this embodiment, a set of test acquisition software and a host computer are also required to be used in cooperation with the test device, and the test acquisition software and the host computer are connected with the static tension sensor 13 and the dynamic impact sensor 16 through signals, and the tested values can be displayed through the display screens of the test acquisition software and the host computer.
Still further, the device also comprises a guide component for adjusting the traction direction of the traction rope 9 in the dynamic test process, wherein the guide component comprises a mandril 23 fixedly arranged between the two groups of side frames 2; and a pulley 24 fixedly arranged at the bottom of the ejector rod 23, and one end of the traction rope 9 is inserted through the pulley 24 and connected with the connecting rope 20 at the top of the electromagnetic chuck 19.
Through the arrangement of the guide component, the use position of the traction rope 9 can be guided in the dynamic test process to be far away from the positions of the support frame 4 and the side frame 2, so that the test dummy can be prevented from interfering with the support frame 4 and the side frame 2 when the test dummy is lifted; in this embodiment, the traction rope 9 is changed in direction by a set of pulleys 24, and when the traction rope 9 is wound, the pulleys 24 are driven to rotate.
Based on the above-mentioned comprehensive testing device for the falling protective equipment, the embodiment also discloses a testing method for the comprehensive testing device for the falling protective equipment, which comprises two steps of dynamic testing and static testing, wherein:
the dynamic test comprises the following steps:
step one: the traction rope 9 is inserted through the pulley 24 and connected with the connecting rope 20 at the top of the electromagnetic chuck 19;
step two: magnetically attracting the top of the metal disc 21 to the bottom of the electromagnetic chuck 19, and hanging a test dummy on a hook 22 at the bottom of the metal disc 21;
step three: tying the fire safety belt to be tested on the body of the test dummy, and tying the connecting belt 17 connected with the sensing end of the dynamic impact sensor 16 on the fire safety belt to be tested;
step four: winding the traction rope 9 through a winding assembly to raise the test dummy to a test height;
step five: de-energizing the electromagnetic chuck 19 releases the test dummy so that it is free to fall downward and the impact force of the fire safety belt during the fall of the test dummy is tested by the dynamic impact sensor 16.
Specifically, the specific steps for impact testing of the safety belt are as follows:
1. the power is turned on, and the power switch is turned on. Preparing fire safety belt or fire safety sling according to the requirement
2. The fire safety belt or the fire safety sling is worn on the dummy in a correct manner.
3. Clicking the safety belt dynamic state and entering a safety belt dynamic state interface.
4. The electromagnetic lifting hook is hooked on the hook of the dynamic lifting machine, then the electromagnetic lifting hook is clicked to be attracted, and the electromagnetic lifting hook is connected with the dummy head die lifting ring.
5. And (3) lifting the dummy to a proper position according to the lifting of the remote control handle, then connecting the protecting belt with the head hanging ring, and then continuously lifting the dummy.
6. After waiting for the bearing connecting component and the fixed point to be horizontal, stopping lifting, clicking for zero clearing, resetting the height, and setting the experimental height to be 1 meter. The connecting rope is hung on the hanging ring of the fixed point.
7. And after the dummy is continuously lifted to the height of 1 meter, the lifting is automatically stopped.
8. Click release, electromagnetic hook release dummy, dummy have no initial velocity automatic falling body whereabouts.
9. After the dummy stops swinging, the waistband or the sling is taken down, and the condition of the sample is checked and observed.
The static test comprises the following steps:
step one: fixing the bottom of the test dummy through a hanging ring 12;
step two: connecting a fire safety rope or a fire safety belt tied on a test dummy with the static tension sensor 13;
step three: the traction rope 9 is wound by the winding component, and the static tension of the fire safety rope or the fire safety belt is tested by the static tension sensor 13.
Specifically, the static test of the fire-fighting safety rope mainly comprises a breaking strength test and an elongation test, and when the breaking strength test is carried out on the safety rope, the static test comprises the following steps:
1. the power is turned on, and the power switch is turned on. 5 safety belts to be tested were prepared.
2. Clicking the safety belt static state, entering the safety belt test interface, clicking the setting interface, and entering the setting interface. The safety rope static test and the safety belt static test share a safety belt static test program.
3. The movable clamp is adjusted to a proper position by ascending or descending.
4. The two ends of the safety rope to be tested are clamped by the drum-shaped clamps, the sample is wound on each drum-shaped clamp for more than three circles, and the tail end of the sample is properly fixed by the clamp.
5. After the safety rope is installed, the clicking experiment interface returns, clicking is started, and the equipment automatically operates to apply force to the safety belt.
6. And displaying the force value in real time, and automatically recording the maximum value as the current breaking strength after the safety rope is broken.
7. After the test is finished, the equipment is automatically reset, and the safety rope is replaced again until 5 complete tests are completed.
And 5 safety ropes are completely tested, and the equipment automatically calculates the minimum breaking strength.
Further, when the elongation rate test is performed on the safety rope, the method comprises the following specific steps:
1. the power is turned on, and the power switch is turned on. 5 safety lines to be tested were prepared.
2. Clicking the safety belt static state, entering the safety belt test interface, clicking the setting interface, and entering the setting interface. The safety rope static test and the safety belt static test share a safety belt static test program.
3. The movable clamp is adjusted to a proper position by ascending or descending.
4. The two ends of the safety rope to be tested are clamped by the drum-shaped clamps, the sample is wound on each drum-shaped clamp for more than three circles, and the tail end of the sample is properly fixed by the clamp.
5. Clicking the experimental force value, and setting an initial pulling force in N units. Initial tension of 1.38d 2 Where d is the safety line diameter in mm. Click on hold time, set hold time to 300S.
6. After the safety rope is installed, the clicking experiment interface returns, clicking is started, and the equipment automatically operates to apply force to the safety belt.
7. When the initial tension is set, the set time is automatically kept, and the automatic sound alarm is carried out after the set time.
8. Clicking to clear, clearing alarm and time, and selecting two points of the safety rope which are 500mm apart for identification. And then entering a setting interface to set the experimental force value to be 10% of the minimum breaking strength, and returning to the experimental interface.
9. Click-on, the device automatically operates to apply a force to the safety line. And (5) reaching the set force value and automatically stopping.
10. The device automatically tests the distance between the two points, denoted B, and calculates the elongation. The elongation calculation formula is E=B-500/500×100%.
Further, the fire safety waistband and the fire safety sling mainly comprise a positive cube static tension test, a horizontal static tension test and an inverted static tension test. The three test dummies are different in placement positions and respectively stand and lie. The test process is stress application, time keeping, stress relief, re-stress application, time keeping and re-stress relief. The force value and time can be set by oneself, and the program is automatically controlled to perform the operations of force value maintenance, force application, force unloading and the like. The method comprises the following specific steps:
1. the power is turned on, and the power switch is turned on. Preparing fire safety belt or fire safety sling according to the requirement
2. The fire safety belt or the fire safety sling is worn on the dummy in a correct manner. And connecting the connecting piece on the dummy with the hanging ring at the bottom of the test frame. The front cube is connected with the lifting ring of the crotch part, the back and the leg parts are connected in the horizontal direction, and the head lifting ring is connected in the inverted direction.
3. Clicking the safety belt static state, entering the safety belt test interface, clicking the setting interface, and entering the setting interface.
4. The test hook is adjusted to the proper position by ascending or descending. The sensor section is then connected to the test hook and the other section is connected to the load bearing connection member.
5. After the waistband or the sling is installed, the experimental interface is clicked to return, the experimental interface is clicked to start, and the waistband or the sling is automatically operated to test according to a set program.
6. After the test is completed, the test is automatically stopped. And (3) taking down the safety belt after the test is completed, checking related test phenomena, and measuring the sliding distance of the webbing in the buckle and the adjusting device.
After the test is finished, the equipment is automatically reset, and the safety belt is replaced again until 5 complete tests are completed.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. A fall protection equipment integrated test device, comprising:
a base (1);
two groups of side frames (2) respectively arranged on two sides of the top of the base (1);
a mounting assembly for fixing two sets of said side frames (2) to the top of the base (1);
a plurality of groups of support rods (3) for connecting the two groups of side frames (2) together;
the support frames (4) are arranged between the two groups of side frames (2), and a winding assembly is arranged at the top of each support frame (4);
the static testing component is connected with the winding component and used for testing the static tensile property of the fire safety belt; and
and the dynamic testing component is connected with the winding component and used for testing the dynamic impact performance of the fire safety belt.
2. The comprehensive testing device for falling protective equipment according to claim 1, wherein: the winding assembly comprises:
a driving motor (5) fixedly arranged on the top of the supporting frame (4);
a rotating rod (6) which is in key connection with the output shaft of the driving motor (5);
the supporting seat (7) is arranged at the top of the supporting frame (4) and used for carrying out auxiliary support on the rotating rod (6);
the winding wheel (8) is arranged on the surface of the rotating rod (6); and
and the traction rope (9) is wound on the surface of the winding wheel (8).
3. The comprehensive testing device for falling protective equipment according to claim 2, wherein: the static test assembly includes:
two groups of bottom plates (10) fixedly arranged between the two groups of side frames (2);
a connecting plate (11) fixedly arranged between the two groups of bottom plates (10);
a hanging ring (12) arranged at the tops of the bottom plate (10) and the connecting plate (11);
the static tension sensor (13) is connected to one end, far away from the winding wheel (8), of the traction rope (9); and
and a suspender (14) arranged at the induction end of the static tension sensor (13).
4. The comprehensive testing device for falling protective equipment according to claim 2, wherein: the dynamic test assembly includes:
the mounting frame (15) is fixedly arranged at one side of the supporting frame (4);
a dynamic impact sensor (16) fixed to the mounting frame (15);
the connecting belt (17) is arranged at the induction end of the dynamic impact sensor (16); and
an electromagnetic lifting hook (18) which is used for connecting the traction rope (9) with the test dummy and has an automatic unhooking function.
5. The comprehensive testing device for falling protective equipment according to claim 4, wherein: the electromagnetic hook (18) comprises:
the electromagnetic chuck (19), the top of the electromagnetic chuck (19) is fixedly provided with a connecting rope (20), and one end of the connecting rope (20) far away from the electromagnetic chuck (19) is fixedly connected with one end of the traction rope (9);
a metal disc (21) magnetically attracted to the bottom of the electromagnetic chuck (19); and
and the hook (22) is fixedly arranged at the bottom of the metal disc (21) and used for being connected with the test dummy.
6. The comprehensive testing device for falling protective equipment according to claim 5, wherein: the device further comprises a guiding assembly for adjusting the traction direction of the traction rope (9) during dynamic testing, the guiding assembly comprising:
the ejector rods (23) are fixedly arranged between the two groups of side frames (2); and
the pulley (24) is fixedly arranged at the bottom of the ejector rod (23), and one end of the traction rope (9) is inserted through the pulley (24) and connected with the connecting rope (20) at the top of the electromagnetic chuck (19).
7. The comprehensive testing device for falling protective equipment according to claim 1, wherein: the mounting assembly includes:
the mounting plates (25) are fixedly arranged at the bottoms of the two groups of side frames (2);
a triangular stabilizing plate (26) mounted on the top of the mounting plate (25), one side of the triangular stabilizing plate (26) being welded to the surface of the side frame (2); and
and the locking assembly is used for locking and fixing the mounting plate (25) on the top of the base (1).
8. The fall protection equipment integrated test device of claim 7, wherein: the locking assembly includes:
the locking screw rod (27) is fixedly arranged at the top of the base (1);
the connecting holes (28) are formed in the surface of the mounting plate (25) and correspond to the locking screw rods (27), and the top ends of the locking screw rods (27) penetrate through the connecting holes (28) and extend to the upper side of the mounting plate (25); and
the locking nut (29) is connected to the top end of the locking screw rod (27) in a threaded mode, and the bottom of the locking nut (29) is attached to the top of the mounting plate (25).
9. The comprehensive testing device for falling protective equipment according to claim 1, wherein: the test device further comprises a cat ladder (30) arranged on one side of one group of the side frames (2), and a test protection platform (31) is fixedly arranged on one side of the group of the side frames (2) corresponding to the cat ladder (30).
10. A method of testing a fall protection equipment integrated test device according to any one of claims 1 to 9, comprising the steps of dynamic testing and static testing, wherein:
the dynamic test comprises the following steps:
step one: the traction rope is inserted through the pulley and connected with the connecting rope at the top of the electromagnetic chuck;
step two: magnetically attracting the top of the metal disc to the bottom of the electromagnetic chuck, and hanging the test dummy on a hook at the bottom of the metal disc;
step three: tying the fire safety belt to be tested on the body of the test dummy, and tying a connecting belt connected with the sensing end of the dynamic impact sensor on the fire safety belt to be tested;
step four: winding the traction rope through a winding assembly to raise the test dummy to a test height;
step five: the electromagnetic chuck is powered off to release the test dummy, so that the test dummy can fall freely downwards, and the dynamic impact sensor is used for testing the impact force of the fire safety belt in the falling process of the test dummy;
the static test comprises the following steps:
step one: fixing the bottom of the test dummy through a hanging ring;
step two: connecting a fire safety rope or a fire safety belt tied on the test dummy with the static tension sensor;
step three: the traction rope is wound through the winding component, and the static tension of the fire safety belt or the fire safety rope is tested through the static tension sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311609348.6A CN117705613A (en) | 2023-11-29 | 2023-11-29 | Comprehensive test device and test method for falling protective equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311609348.6A CN117705613A (en) | 2023-11-29 | 2023-11-29 | Comprehensive test device and test method for falling protective equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117705613A true CN117705613A (en) | 2024-03-15 |
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ID=90148928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311609348.6A Pending CN117705613A (en) | 2023-11-29 | 2023-11-29 | Comprehensive test device and test method for falling protective equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117705613A (en) |
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2023
- 2023-11-29 CN CN202311609348.6A patent/CN117705613A/en active Pending
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