CN109410688B - Free fall danger experience device - Google Patents
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- CN109410688B CN109410688B CN201811609460.9A CN201811609460A CN109410688B CN 109410688 B CN109410688 B CN 109410688B CN 201811609460 A CN201811609460 A CN 201811609460A CN 109410688 B CN109410688 B CN 109410688B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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Abstract
The invention relates to a free-fall danger experience device which comprises a fixed frame, a supporting seat and a protective shell, wherein first organic protective glass is arranged on the fixed frame, supporting screws are arranged in the fixed frame, the supporting seat is arranged between the supporting screws, a through hole is formed in the supporting seat, a baffle is arranged in the through hole, a limiting block is arranged below the baffle, an electromagnetic clutch is arranged on the side face of the limiting block, and a distance sensor is arranged above the supporting seat. The technical scheme of the embodiment of the invention is simple and flexible to use, can set the free falling height of the object as required, performs crashing experiments on protective articles such as safety helmets, safety shoes and the like, can observe the process of the free falling experiments through the first organic protective glass and the second organic protective glass, can protect the safety of people, and improves the use convenience of equipment.
Description
Technical Field
The invention relates to a free-fall danger experiencing device. Belongs to the field of detection devices.
Background
According to different working dangers of people, different protective devices such as safety helmets, safety shoes, protective clothes and the like are produced, tools, stones and other objects easily fall from high altitude on a construction site, so that workers need to wear the safety helmets to protect the workers, and the protective devices such as the safety helmets, the safety shoes and the like need to be detected in order to ensure the use safety of the protective devices. General detection device is bulky, and the structure is complicated, complex operation, has increaseed pertinence when using moreover, and the scope of detecting article is less, and inconvenient use in places such as laboratory has great limitation. In particular, in the teaching of science and technology, students are often subjected to safety training, wherein the safety training of free fall is the most common, but the safety training of free fall is generally lacked in the teaching process at present.
Disclosure of Invention
The invention aims to provide a free-fall dangerous experience device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a free falling body danger experience device comprises a fixed frame, a supporting seat and a protective shell, wherein first organic protective glass is arranged on the fixed frame, supporting screws are arranged in the fixed frame, the supporting seat is arranged between the supporting screws, through holes are formed in the supporting seat, baffles are arranged in the through holes, a limiting block is arranged below the baffles, an electromagnetic clutch is arranged on the side face of the limiting block, the working parameter of the electromagnetic clutch is DC24V, a distance sensor is arranged above the supporting seat, the model of the distance sensor is GP2D150E, a fixing seat is arranged below the supporting seat, a limiting groove is formed in the fixing seat, a base is arranged below the fixed frame, a material door is arranged at the front part of the fixed frame, second organic protective glass is arranged on the material door, and a safety lock is arranged on the side face of the second organic protective glass, the protection shell is arranged above the fixed frame, a speed reducing motor is arranged in the protection shell, the working parameter of the speed reducing motor is DC24V0.09kw, a controller is arranged between the speed reducing motors, a display screen is arranged at the front part of the protection shell, a button is arranged on the side surface of the display screen, and the speed reducing motor, the display screen, the button, the distance sensor and the electromagnetic clutch are electrically connected with the controller; the electromagnetic clutch comprises a coil, a coil fixing groove, a magnet, a driving wheel and a driving shaft, wherein the coil fixing groove is arranged on the outer side of the coil, the magnet is arranged on the outer side of the coil fixing groove, the driving wheel is arranged on the inner side of the magnet, a fixing plate is arranged at one end of the driving wheel, the driving shaft is arranged on the inner side of the driving wheel, a pressing plate is arranged on the other side of the driving wheel, a fixing pin is arranged above the pressing plate, a fixing screw is arranged below the pressing plate, a driven wheel is arranged on the outer side of the pressing plate, a diaphragm spring is arranged between the pressing plate and the driven wheel, a push plate is arranged on the other side of the driven wheel, a push plate ejection column is, the inner side of the electromagnet is provided with a driven shaft, and a power supply is arranged below the driving shaft.
In the technical scheme, when the protective effect of the safety helmet is detected, the material door is opened, the safety helmet is placed in the limiting groove, the simulation bench hammer is placed in the through hole, the baffle limits the position of the simulation bench hammer, the material door is closed, function selection is carried out through the button, equipment starts to work, the speed reduction motor drives the supporting screw rod to rotate and drives the supporting seat to move upwards, when the distance value detected by the distance sensor is the same as the set distance value, the speed reduction motor stops working, the electromagnetic clutch works and drives the limiting block to move to one side far away from the baffle, the limiting block does not limit, the baffle rotates downwards, the simulation bench hammer in the through hole carries out free-falling body movement under the action of gravity, the condition of the safety helmet is observed, and the speed reduction motor works through the button 19 when the safety helmet is hit, driving the supporting seat to move to an initial position, opening the material door to take out the safety helmet, putting the plastic flowerpot into the limiting groove, restoring the baffle to the initial position, putting the simulation pincers hammer into the through hole again to enable the simulation pincers hammer to freely fall again at the same height, pounding the simulation pincers hammer on the plastic flowerpot, observing the condition of the plastic flowerpot, testing the protection effect of the safety shoes by comparing, simulating the weight of the pincers hammer to be 0.5kg, when testing the protection effect of the safety shoes, putting the common shoes into the limiting groove, putting the iron blocks into the through hole, rapidly falling the iron blocks, respectively pounding the iron blocks on the common shoes, observing the condition of the common shoes, then taking out the common shoes, putting the safety shoes into the limiting groove, putting the iron blocks into the through hole, rapidly falling the iron blocks, respectively pounding the safety shoes, observing the condition of the safety shoes, and testing the protection effect of the safety shoes by comparing, the iron blocks weighed 1 kg.
In the invention, the controller comprises a chip IC, wherein a first pin of the chip IC is respectively connected with one end of a capacitor C6, one end of a resistor R8, one end of a capacitor C4, one end of a resistor R4, one end of a resistor R1, a signal output end V2, one end of a resistor R2 and one end of a capacitor C1; the other end of the resistor R1 is connected with the signal input end V1, the other end of the resistor R2 is respectively connected with the other end of the capacitor C1, the emitter of the triode D1, the anode of the diode D5 and one end of the capacitor C5, the other end of the capacitor C5 is connected with the fourth pin of the chip IC, the cathode of the diode D5 is respectively connected with the fifth pin of the chip IC and one end of the resistor R5, the other end of the resistor R5 is connected with one end of the capacitor C2, the other end of the capacitor C2 is respectively connected with the base of the triode D2, the other end of the resistor R2, one end of the resistor R2 and the emitter of the triode D2, the base of the triode D2 is respectively connected with the other end of the resistor R2 and the collector of the triode D2, the collector of the triode D2 is respectively connected with one end of the capacitor C2, one end of the resistor R2 and one end of the collector of the triode D2, the other end of the resistor R6 is connected with the base electrode of the triode D1, the emitting electrode of the triode D3 is respectively connected with the sixth pin of the chip IC and the anode of the diode D4, and the cathode of the diode D4 is respectively connected with the other end of the capacitor C4 and the other end of the resistor R8; the other end of the capacitor C9 is connected with a collector of a triode D8, a base of a triode D8 is respectively connected with the other end of the resistor R10 and the collector of the triode D6, an emitter of the triode D8 is respectively connected with an anode of a diode D9, one end of a resistor R11, an anode of the diode D7 and one end of a capacitor C8, the other end of the resistor R11 is connected with an emitter of a triode D6, and a base of the triode D6 is connected with a resistor R9 and then connected with a third pin of the chip IC; the cathode of the diode D7 is connected to one end of the capacitor C7 and the second pin of the chip IC, and the other end of the capacitor C7 is connected to one end of the capacitor C6, one end of the capacitor C8 and the cathode of the diode D9.
As a preferable technical scheme of the invention, the fixed frame is welded with the base, and the fixed frame is connected with the material door through a hinge.
As a preferable technical scheme of the invention, the size of the fixed frame is 60cm × 60cm × 150cm, the material is 5050W industrial aluminum profile, the size of the base is 70cm × 70cm × 5cm, the material is 50100 industrial aluminum profile, and the size of the material door is 40cm × 40 cm.
As a preferred embodiment of the present invention, the protective housing and the fixing frame are fixedly connected by screws.
As a preferable technical solution of the present invention, the second organic cover glass is mounted on the material door, the first organic cover glass is mounted on the fixing frame, and the second organic cover glass and the first organic cover glass have a thickness of 5 mm.
As a preferable technical scheme of the invention, the supporting seat is fixedly connected with the supporting lead screw through threads.
As a preferable technical solution of the present invention, the baffle is connected to the support base by a hinge.
Further setting: the magnet is connected with the coil fixing groove through a screw. So set up, conveniently dismantle the change the coil.
Further setting: the driving shaft is connected with the driving wheel through a key. So set up, installation that can be quick is dismantled and is improved life.
Further setting: the diaphragm spring is connected with the driven wheel through screws. So set up, can dismantle the maintenance of changing fast.
Further setting: the fixing screw is connected with the driven wheel through threads. So set up, easy to assemble maintenance is dismantled from the driving wheel.
Further setting: the driven wheel is connected with the driven shaft through welding. So set up, improve from the driving wheel with the joint strength of driven shaft.
Further setting: the diaphragm spring is connected with the pressure plate through the fixing pin. So set up, in order to drive when the clamp plate removes the diaphragm spring takes place deformation.
The invention has the following beneficial effects:
1. the device is simple and flexible to use, the free falling height of the articles can be set according to the requirement, the smashing and collision experiments are carried out on protective articles such as safety helmets, safety shoes and the like, the process of the free falling experiments can be observed through the first organic protective glass and the second organic protective glass, the safety of people can be protected, and the use convenience of the device is improved.
2. The electromagnetic clutch adopted in the invention can not lose power under the condition of power failure, thus improving the reliability of the electromagnetic clutch; and the efficiency of power transmission is improved.
Drawings
FIG. 1 is a schematic view of an internal structure of a free-fall hazard experiencing apparatus in accordance with the present invention;
FIG. 2 is a front view of a free-fall hazard experiencing apparatus in accordance with the present invention;
FIG. 3 is a left side view of a free-fall hazard experiencing apparatus in accordance with the present invention;
FIG. 4 is a block diagram of a circuit structure of a free fall danger experiencing apparatus according to the present invention;
FIG. 5 is a schematic structural view of an electromagnetic clutch according to the present invention;
FIG. 6 is a partial view of a diaphragm spring within the electromagnetic clutch of the present invention;
FIG. 7 is a partial view of the ejector pin within the electromagnetic clutch of the present invention;
fig. 8 is a circuit schematic of the controller of the present invention.
In the figure: 1. a base; 2. a fixed seat; 3. a limiting groove; 4. a support lead screw; 5. a fixed frame; 6. a supporting seat; 7. a distance sensor; 8. a reduction motor; 9. a protective housing; 10. a controller; 11. a through hole; 12. a baffle plate; 13. a limiting block; 14. an electromagnetic clutch; 15. a second organic cover glass; 16. a material gate; 17. a first organic cover glass; 18. a safety lock; 19. a button; 20. a display screen; 21. a coil; 22. a coil fixing groove; 23. a magnet; 24. a driving wheel; 25. a drive shaft; 26. a fixing plate; 27. a driven wheel; 28. a fixing pin; 29. pressing a plate; 30. fixing screws; 31. pushing the plate; 32. pushing the plate to push the column; 33. a return spring; 34. an electromagnet; 35. fixing the disc; 36. a diaphragm spring; 37. a driven shaft; 38. a power source.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 8, the present invention provides a technical solution: a free falling body danger experience device comprises a fixed frame 5, a supporting seat 6 and a protective shell 9, wherein first organic protective glass 17 is arranged on the fixed frame 5, the first organic protective glass 17 is used for facilitating observation of experimental conditions and protection of people, a supporting lead screw 4 is arranged inside the fixed frame 5, the supporting lead screw 4 is used for supporting the supporting seat 6, the supporting seat 6 is arranged between the supporting lead screws 4, a through hole 11 is formed in the supporting seat 6, the through hole 11 is used for facilitating simulation of falling of a bench hammer and an iron block, a baffle 12 is arranged inside the through hole 11, the baffle 12 is used for fixedly simulating the bench hammer and the iron block, a limiting block 13 is arranged below the baffle 12, the limiting block 13 is used for limiting the position of the baffle 12, an electromagnetic clutch 14 is arranged on the side surface of the limiting block 13, the working parameter of the electromagnetic clutch 14 is DC24V and is used for driving the limiting block, a distance sensor 7 is arranged above the supporting seat 6, the model of the distance sensor 7 is GP2D150E and is used for detecting the position change of the supporting seat 6, a fixed seat 2 is arranged below the supporting seat 6, a limit groove 3 is arranged on the fixed seat 2, the limit groove 3 is used for limiting the position of a safety helmet and a safety shoe, a base 1 is arranged below the fixed frame 5, a material door 16 is arranged at the front part of the fixed frame 5, the material door 16 is used for facilitating the taking and placing of materials, a second organic protective glass 15 is arranged on the material door 16, a safety lock 18 is arranged on the side surface of the second organic protective glass 15, a protective shell 9 is arranged above the fixed frame 5, a speed reducing motor 8 is arranged inside the protective shell 9, the working parameter of the speed reducing motor 8 is DC24V0.09kw and is used for driving the supporting screw rod 4 to rotate, a controller 10 is arranged between the speed reducing, the front part of the protective shell 9 is provided with a display screen 20, the side surface of the display screen 20 is provided with a button 19, and the speed reducing motor 8, the display screen 20, the button 19, the distance sensor 7 and the electromagnetic clutch 14 are electrically connected with the controller 10. The electromagnetic clutch 14 comprises a coil 21, a coil fixing groove 22, a magnet 23, a driving wheel 24 and a driving shaft 25, wherein the coil fixing groove 22 is arranged on the outer side of the coil 21, the coil fixing groove 22 is used for fixing the coil 21, the magnet 23 is arranged on the outer side of the coil fixing groove 22, the magnet 23 is used for attracting a pressing plate 29, the driving wheel 24 is arranged on the inner side of the magnet 23 and is used for matching with the pressing plate 29 to drive a driven wheel 27 to rotate, a fixing plate 26 is arranged at one end of the driving wheel 24, the fixing plate 26 is used for fixing the position of the driving wheel 24, the driving shaft 25 is arranged on the inner side of the driving wheel 24 and is used for providing driving force, a pressing plate 29 is arranged on the other side of the driving wheel 24 and is used for matching with the driving wheel 24 to drive the driven wheel 27 to, a fixing screw 30 is arranged below the pressure plate 29, the fixing screw 30 is used for matching with the pressure plate 29 to drive the driven wheel 27 to rotate, the driven wheel 27 is arranged outside the pressure plate 29, the driven wheel 27 is used for transmitting power to the driven shaft 37, a diaphragm spring 36 is arranged between the pressure plate 29 and the driven wheel 27, the diaphragm spring 36 is used for driving the pressure plate 29 to leave the driving wheel 24, a push plate 31 is arranged on the other side of the driven wheel 27, the push plate 31 is used for pushing the pressure plate 29 to press the driving wheel 24, a push plate ejection column 32 is arranged on the other side of the push plate 31, the push plate ejection column 32 is used for pushing the push plate 31 to press the pressure plate 29, a return spring 33 is arranged outside the push plate ejection column 32, the return spring 33 is used for pushing the push plate ejection column 32 to move, a fixing disc 35 is arranged, the electromagnet 34 is used for electrifying and attracting the push plate top column 32, the driven shaft 37 is arranged on the inner side of the electromagnet 34, the driven shaft 37 is used for transmitting power, the power supply 38 is arranged below the driving shaft 25, and the power supply 38 is used for supplying power to the coil 21 and the electromagnet 34.
According to the invention, the fixed frame 5 is welded with the base 1, so that the connection firmness of the base 1 and the fixed frame 5 is ensured, the fixed frame 5 is connected with the material door 16 through a hinge, so that the material door 16 can be conveniently opened and closed, the size of the fixed frame 5 is 60cm × 60cm × 150cm, the material is 5050W industrial aluminum profile, the size of the base 1 is 70cm × 70cm × 5cm, the material is 50100 industrial aluminum profile, the size of the material door 16 is 40cm × 40cm, the protective shell 9 is fixedly connected with the fixed frame 5 through screws, the connection firmness of the protective shell 9 and the fixed frame 5 is ensured, the second organic protective glass 15 is embedded on the material door 16, the connection firmness of the second organic protective glass 15 and the material door 16 is ensured, the first organic protective glass 17 is embedded on the fixed frame 5, the connection firmness of the first organic protective glass 17 and the fixed frame 5 is ensured, the thicknesses of the second organic protective glass 15 and the first organic protective glass 17 are 5mm, the fixed frame 6 and the support seat 6 are fixedly connected through screws, so that the baffle can conveniently move up and down through the hinge, and the support seat 12 can be conveniently moved up and down.
In the invention, when the protective effect of the safety helmet is detected, the material door 16 is opened, the safety helmet is placed in the limiting groove 3, the simulation bench hammer is placed in the through hole 11, the baffle 12 limits the position of the simulation bench hammer, the material door 16 is closed, the function selection is carried out through the button 19, the equipment starts to work, the speed reducing motor 8 drives the supporting screw rod 4 to rotate, the supporting seat 6 is driven to move upwards, when the distance value detected by the distance sensor 7 is the same as the set distance value, the speed reducing motor 8 stops working, the electromagnetic clutch 14 works, the limiting block 13 is driven to move to the side far away from the baffle 12, the limiting block 13 is not limited, the baffle 12 rotates downwards, the simulation bench hammer in the through hole 11 carries out free falling body movement under the action of gravity, the condition of the safety helmet is observed, the speed reducing motor 8 works through the button 19 on the safety helmet, the supporting seat 6 is driven to move to the initial position, open material door 16 and take out the safety helmet, put into spacing recess 3 with the plastics flowerpot again, resume initial position with baffle 12, put into through-hole 11 once more with simulation pincers worker hammer, make simulation pincers worker hammer carry out the free falling body once more at same height, pound on the plastics flowerpot, observe the condition of plastics flowerpot, experience the safeguard effect of safety shoes through the contrast, simulation pincers worker hammer is heavy 0.5kg, when detecting safety shoes safeguard effect, put into spacing recess 3 with ordinary shoes, put into through-hole 11 with the iron plate, the iron plate falls fast and pound respectively on ordinary shoes, observe the condition of ordinary shoes, later take out ordinary shoes, put into spacing recess 3 with safety shoes again, put into through-hole 11 with the iron plate, the iron plate falls fast and pounds respectively on safety shoes, observe the condition of safety shoes, experience the guard action of safety shoes through the contrast, the iron plate weighs 1 kg.
Further, the magnet 23 is screwed into the coil fixing groove 22, so that the coil 21 can be conveniently detached and replaced.
In the invention, when the electromagnetic clutch 14 works, the power is transmitted to the driving wheel 24 through the driving shaft 25, so that the driving shaft 25, the driving wheel 24 and the fixing plate 26 rotate together with the lower part, the coil 21, the coil fixing groove 22 and the magnet 23 do not rotate along with the rotation, when the coil 21 is electrified, the magnet 23 generates magnetic attraction to move the pressing plate 29 towards the driving wheel 24, at the moment, the electromagnet 34 is powered off, the reset spring 33 pushes the push plate ejection column 32 to press the push plate 31 to press the pressing plate 31 to the pressing plate 29, so that the push plate and the driving wheel 24 are combined to rotate, the pressing plate 29 transmits the power to the driven wheel 27 through the fixing screw 30, the driven wheel 27 drives the driven shaft 37 to rotate, and if the power supply 38 fails to be used, the reset spring 33 pushes the push plate ejection column 32 to press the push plate 31 to be combined.
Referring to fig. 8, in the present invention, the controller 10 includes a chip IC of type ARMIC0016, where a first pin of the chip IC is connected to one end of a capacitor C6, one end of a resistor R8, one end of a capacitor C4, one end of a resistor R4, one end of a resistor R1, a signal output terminal V2, one end of a resistor R2, and one end of a capacitor C1, respectively; the other end of the resistor R1 is connected with the signal input end V1, the other end of the resistor R2 is respectively connected with the other end of the capacitor C1, the emitter of the triode D1, the anode of the diode D5 and one end of the capacitor C5, the other end of the capacitor C5 is connected with the fourth pin of the chip IC, the cathode of the diode D5 is respectively connected with the fifth pin of the chip IC and one end of the resistor R5, the other end of the resistor R5 is connected with one end of the capacitor C2, the other end of the capacitor C2 is respectively connected with the base of the triode D2, the other end of the resistor R2, one end of the resistor R2 and the emitter of the triode D2, the base of the triode D2 is respectively connected with the other end of the resistor R2 and the collector of the triode D2, the collector of the triode D2 is respectively connected with one end of the capacitor C2, one end of the resistor R2 and one end of the collector of the triode D2, the other end of the resistor R6 is connected with the base electrode of the triode D1, the emitting electrode of the triode D3 is respectively connected with the sixth pin of the chip IC and the anode of the diode D4, and the cathode of the diode D4 is respectively connected with the other end of the capacitor C4 and the other end of the resistor R8; the other end of the capacitor C9 is connected with a collector of a triode D8, a base of a triode D8 is respectively connected with the other end of the resistor R10 and the collector of the triode D6, an emitter of the triode D8 is respectively connected with an anode of a diode D9, one end of a resistor R11, an anode of the diode D7 and one end of a capacitor C8, the other end of the resistor R11 is connected with an emitter of a triode D6, and a base of the triode D6 is connected with a resistor R9 and then connected with a third pin of the chip IC; the cathode of the diode D7 is connected to one end of the capacitor C7 and the second pin of the chip IC, and the other end of the capacitor C7 is connected to one end of the capacitor C6, one end of the capacitor C8 and the cathode of the diode D9.
The experience device solves the problem that no visual experience equipment is available in teaching, can play a vivid role in classroom teaching, facilitates students to visually know principles and master matters to be noticed, and is beneficial to improving the learning efficiency of the students.
It should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and although the applicant has described the invention in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions made on the technical solutions of the present invention can not be made within the spirit and scope of the technical solutions of the present invention and shall be covered by the claims of the present invention.
Claims (6)
1. The device for experiencing free falling body danger comprises a fixed frame (5), a supporting seat (6) and a protective shell (9), and is characterized in that a first organic protective glass (17) is arranged on the fixed frame (5), a supporting lead screw (4) is arranged inside the fixed frame (5), a supporting seat (6) is arranged between the supporting lead screw (4), a through hole (11) is formed in the supporting seat (6), a baffle (12) is arranged inside the through hole (11), a limit block (13) is arranged below the baffle (12), an electromagnetic clutch (14) is arranged on the side of the limit block (13), a distance sensor (7) is arranged above the supporting seat (6), a fixed seat (2) is arranged below the supporting seat (6), a limit groove (3) is arranged on the side of the fixed seat (2), a base (1) is arranged below the fixed frame (5), a material door (16) is arranged in the front of the fixed frame (5), a material door (16) is arranged on the fixed frame (16), a material door (16) is arranged on the material door (16), a second organic protective glass (15) is connected with an emitter, a transistor, a second organic protective glass (15) is arranged on the side of the second organic protective glass protective frame (15), a push plate (20) is arranged on the push plate (20), a push plate (20) and a push plate (20), a push plate (20) is arranged between a push plate (20) and a push plate (20), a push plate (20) is connected with a push plate (20) of a push plate (20) is connected with a push plate (20), a push plate (20) of a push plate (20), a push plate (20) which is connected with a push plate, a push plate, a push plate.
2. A free-fall hazard experiencing apparatus as claimed in claim 1, wherein: the supporting seat (6) is fixedly connected with the supporting lead screw (4) through threads.
3. A free-fall hazard experiencing apparatus as claimed in claim 2, wherein: the baffle (12) is connected with the supporting seat (6) through a hinge.
4. A free-fall hazard experiencing apparatus as claimed in claim 3, wherein: the magnet (23) is connected with the coil fixing groove (22) through a screw; the driving shaft (25) is connected with the driving wheel (24) through a key.
5. A free-fall hazard experiencing apparatus as claimed in claim 4, wherein: the diaphragm spring (36) is connected with the driven wheel (27) through a screw; the fixing screw (30) is connected with the driven wheel (27) through threads.
6. A free-fall hazard experiencing apparatus as claimed in claim 5, wherein: the driven wheel (27) is connected with the driven shaft (37) through welding; the diaphragm spring (36) is connected to the pressure plate (29) via the fastening pin (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811609460.9A CN109410688B (en) | 2018-12-27 | 2018-12-27 | Free fall danger experience device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811609460.9A CN109410688B (en) | 2018-12-27 | 2018-12-27 | Free fall danger experience device |
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| CN109410688A CN109410688A (en) | 2019-03-01 |
| CN109410688B true CN109410688B (en) | 2020-07-31 |
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| CN201811609460.9A Active CN109410688B (en) | 2018-12-27 | 2018-12-27 | Free fall danger experience device |
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| CN109490066B (en) * | 2018-11-19 | 2021-01-12 | 国网内蒙古东部电力有限公司赤峰供电公司 | Mechanical property test equipment for electric power safety tool |
| CN110051171A (en) * | 2019-05-24 | 2019-07-26 | 安徽理工大学 | A kind of electric device and electrical control equipment |
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| DE102016206675A1 (en) * | 2016-04-20 | 2017-10-26 | Schaeffler Technologies AG & Co. KG | coupling system |
| CN206470980U (en) * | 2016-11-22 | 2017-09-05 | 济南宝钢钢材加工配送有限公司 | A kind of falling object from high altitude injures analogue means by a crashing object |
| CN207037993U (en) * | 2017-06-06 | 2018-02-23 | 沧州师范学院 | Plain type free fall experimental device is used in a kind of Physics Course teaching |
| CN207380955U (en) * | 2017-07-27 | 2018-05-18 | 江苏永创教学仪器有限公司 | A kind of new microgravity experiment device |
| CN107907292A (en) * | 2017-12-19 | 2018-04-13 | 北京国能电池科技有限公司 | Battery gravity test device |
| CN108132184A (en) * | 2018-02-11 | 2018-06-08 | 北京工业大学 | A kind of freely falling body bump test machine |
| CN108634485B (en) * | 2018-05-17 | 2020-11-20 | 包莉丽 | Safety shoe puncture resistance testing device capable of simulating real scenes |
| CN209280491U (en) * | 2018-12-27 | 2019-08-20 | 重庆电子工程职业学院 | A kind of miniaturization weight freely falling body test device |
-
2018
- 2018-12-27 CN CN201811609460.9A patent/CN109410688B/en active Active
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