CN112150895A

CN112150895A - Acceleration measuring device for laboratory teaching

Info

Publication number: CN112150895A
Application number: CN202011141845.4A
Authority: CN
Inventors: 沈兴洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2020-12-29

Abstract

The invention relates to the technical field of acceleration measurement, and discloses an acceleration measuring device for laboratory teaching, which comprises a body, wherein the interior of the body is movably connected with a first spring, the exterior of the first spring is fixedly connected with a pressing block, the exterior of the pressing block is fixedly connected with a first electromagnet, the exterior of the first electromagnet is movably connected with an iron ball, the interior of the pressing block is movably connected with a photosensitive component, the interior of the body is fixedly connected with a lamp belt, and the interior of the body is movably connected with a moving component; through the mutual action of spring one, briquetting, electro-magnet one, photosensitive element, lamp area, iron ball, promotion subassembly, removal subassembly, can give different accelerations to the iron ball to make things convenient for going on and the record of different experimental data of acceleration measurement real teaching, make it more convenient that acceleration measurement device used in the laboratory, also accord with the needs of actual teaching simultaneously more.

Description

Acceleration measuring device for laboratory teaching

Technical Field

The invention relates to the technical field of acceleration measurement, in particular to an acceleration measuring device for laboratory teaching.

Background

Acceleration is a description object speed change fast slow physical quantity, belongs to the physics subject, and in daily teaching, for the convenience of teaching, the teacher can take the student to carry out the physics experiment and then explain the acceleration.

The current laboratory acceleration measuring device is simpler, generally all be the free fall of the experimental body and carry out the measurement of acceleration, and acceleration when the experimental body free fall in same piece area can not have great change, thereby lead to inconvenient measurement of carrying out different accelerations when the experiment, in addition, certain impact force has during the experimental body motion, when contacting with experimental apparatus, can collide experimental apparatus, long-time clash the back, the condition damaged by the collision can probably appear in experimental apparatus, thereby experimental apparatus's life has been reduced.

Therefore, in order to solve these problems, an acceleration measuring device for laboratory teaching is needed.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the acceleration measuring device for the laboratory teaching, which has the advantages of conveniently measuring different accelerations and buffering and stopping a laboratory body, and solves the problems of inconvenient acceleration regulation during laboratory acceleration measurement and short service life of experimental equipment caused by large impact force of the laboratory body.

(II) technical scheme

In order to realize the purposes of measuring different accelerations and stopping the experiment body in a buffering way, the invention provides the following technical scheme: an acceleration measuring device for laboratory teaching comprises a body, wherein a first spring is movably connected inside the body, a pressing block is fixedly connected outside the first spring, a first electromagnet is fixedly connected outside the pressing block, a first iron ball is movably connected outside the first electromagnet, a photosensitive assembly is movably connected inside the pressing block, a lamp strip is fixedly connected inside the body, a moving assembly is movably connected inside the body, a pushing assembly is movably connected outside the moving assembly, a sleeve is fixedly connected inside the body, a push rod is movably sleeved inside the sleeve, a baffle is fixedly connected outside the push rod, a first rack is fixedly connected outside the push rod, a first gear is meshed outside the first rack, a rotating rod is fixedly sleeved inside the first gear, and a limiting assembly is movably connected outside the rotating rod, and a second spring is movably sleeved outside the first rack.

Preferably, photosensitive element mainly comprises shading shell, light trap, photo resistance, and the inside fixedly connected with shading shell of briquetting, the inside fixedly connected with photo resistance of shading shell, the light trap has been seted up on the surface of shading shell, the inside in lamp area is provided with the lamp pearl, the quantity of lamp pearl is greater than five, the position of lamp pearl, the specification all with the photo resistance phase-match, can control the regulation to the shift position of briquetting, thereby make the compression capacity of spring one different, the resilience force is also different, and then can realize applying the acceleration of equidimension not to the iron ball, the acceleration measuring's of being convenient for experimental teaching.

Preferably, the removal subassembly mainly comprises pivot, gear two, rack two, remove the frame, the limiting plate is constituteed, the inside swing joint of body has the pivot, gear two has been cup jointed to the external fixation of pivot, gear two's outside meshing has rack two, rack two's outside fixedly connected with removes the frame, remove the outside fixedly connected with feeler lever of frame, gear two's outside fixedly connected with pin, the position of pin, the gear all with the feeler lever phase-match, the inside fixedly connected with limiting plate of body, the spacing groove has been seted up on the surface of limiting plate, remove frame and spacing groove sliding connection, the quantity of rack two is two, and two different fixed connection of rack are at the upper and lower both ends of removing the frame internal surface, can drive the briquetting and remove, thereby change the compression capacity of spring one, realize applying the acceleration of equidimension not to the iron ball.

Preferably, the promotion subassembly mainly comprises branch pipe, branch rod, spring three, push pedal, extension board, electro-magnet two, iron plate one, removes the outside fixedly connected with extension board of frame, the outside fixedly connected with branch pipe of extension board, the inside fixedly connected with electro-magnet two of branch pipe, spring three has been cup jointed in the inside activity of branch pipe, branch rod has been cup jointed in the inside activity of branch pipe, the outside fixedly connected with iron plate one of branch rod, the outside fixedly connected with push pedal of briquetting, branch rod and push pedal swing joint, drive the briquetting with removing the subassembly and remove to change the acceleration size of iron ball.

Preferably, spacing subassembly mainly by the ratchet, the kelly, electro-magnet three, iron plate two, spring four, the pole setting, the backup pad is constituteed, sheathed tube inside fixedly connected with backup pad, the outside fixedly connected with pole setting of backup pad, spring four has been cup jointed in the outside activity of pole setting, the outside fixedly connected with electro-magnet three of pole setting, the kelly has been cup jointed in the outside activity of pole setting, the inside fixedly connected with iron plate two of kelly, the outside fixed cover of bull stick has cup jointed the ratchet, kelly and ratchet swing joint, can cushion the deceleration stop to the iron ball, also can not make the iron ball rebound under the resilience force effect of spring two simultaneously.

Preferably, the surface of the electromagnet I is provided with a groove, and the iron ball is movably connected to the surface of the groove, so that the connection between the iron ball and the electromagnet I can be stable, the surface of the body is provided with a ball outlet, the surface of the body is provided with a ball inlet, the surface of the body is provided with a ball taking port, specifications of the ball outlet, the ball inlet and the ball taking port are matched with the iron ball, and the inside fixedly connected with acceleration measurer of the body is provided.

Preferably, the first electromagnet, the lamp strip, the rotating shaft, the second electromagnet, the third electromagnet and the driving power supply are electrically connected with the control center, the rotating shaft is electrically connected with the control power supply, and the control center is electrically connected with the touch rod and the photoresistor, so that all parts in the acceleration measuring device are mutually associated, the automation degree of the acceleration measuring device is greatly improved, and the acceleration measuring device is more suitable for practical education.

(III) advantageous effects

Compared with the prior art, the invention provides an acceleration measuring device for laboratory teaching, which has the following beneficial effects:

1. this acceleration measuring device is used in laboratory teaching, through spring one, briquetting, electro-magnet one, photosensitive element, lamp area, iron ball, promotion subassembly, the interact of removal subassembly, can give different accelerations to the iron ball to made things convenient for going on and the record of different experimental data of acceleration measurement real teaching, make the laboratory use acceleration measuring device more convenient, also accord with the needs of real teaching simultaneously more.

2. This acceleration measuring device is used in laboratory teaching, through baffle, push rod, spring two, rack one, gear one, bull stick, spacing subassembly, sheathed tube interact, the impact force when can moving the iron ball cushions, avoided the iron ball to stop through the striking with acceleration measuring device body and lead to acceleration measuring device impaired condition to take place, improved acceleration measuring device's for the laboratory teaching life greatly, reduced the cost of laboratory teaching.

Drawings

FIG. 1 is a schematic view of the present invention in partial cross section;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged view of the invention at B of FIG. 1;

FIG. 4 is a schematic view of a connection structure of a portion of the structure shown in FIG. 1 according to the present invention;

FIG. 5 is an enlarged view of the invention at C in FIG. 4.

In the figure: 1. a body; 2. a first spring; 3. briquetting; 4. a magnet I; 5. an iron ball; 6. a photosensitive element; 7. a light strip; 8. a moving assembly; 9. a pushing assembly; 10. a sleeve; 11. a push rod; 12. a baffle plate; 13. a first rack; 14. a first gear; 15. a rotating rod; 16. a limiting component; 17. and a second spring.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-5, an acceleration measuring device for laboratory teaching comprises a body 1, the inner part of the body 1 is movably connected with a spring one 2, the outer part of the spring one 2 is fixedly connected with a pressing block 3, the outer part of the pressing block 3 is fixedly connected with an electromagnet one 4, the outer part of the electromagnet one 4 is movably connected with an iron ball 5, the surface of the electromagnet one 4 is provided with a groove, the iron ball 5 is movably connected with the surface of the groove, so that the connection between the iron ball 5 and the electromagnet one 4 can be stable, the surface of the body 1 is provided with a ball outlet, the surface of the body 1 is provided with a ball inlet, the surface of the body 1 is provided with a ball outlet, the specifications of the ball outlet, the ball inlet and the ball inlet are all matched with the iron ball 5, and the inner part of.

The inside swing joint of briquetting 3 has photosensitive element 6, the inside fixedly connected with lamp area 7 of body 1, photosensitive element 6 mainly comprises shading shell, light trap, photo resistance, the inside fixedly connected with shading shell of briquetting 3, the inside fixedly connected with photo resistance of shading shell, the surface of shading shell has seted up the light trap, the inside of lamp area 7 is provided with the lamp pearl, the quantity of lamp pearl is greater than five, the position of lamp pearl, the specification all matches with photo resistance, can control and adjust the shift position of briquetting 3, thereby make the compression of spring one 2 different, the resilience force is also different, and then can realize applying the acceleration of equidimension not to iron ball 5, the experimental teaching of acceleration measurement of being convenient for, electro-magnet one 4, lamp area 7, the apparatus further comprises a rotating shaft, electro-magnet two, electro-magnet three, driving power supply all is connected with the control center electricity, the rotating shaft is connected with the control, the control center is electrically connected with the feeler lever and the photoresistor, so that all parts in the acceleration measuring device are mutually related, the automation degree of the acceleration measuring device is greatly improved, and the acceleration measuring device is more suitable for practical education.

The inner part of the body 1 is movably connected with a moving component 8, the moving component 8 mainly comprises a rotating shaft, a second gear, a second rack, a moving frame and two limiting plates, the inner part of the body 1 is movably connected with the rotating shaft, the second gear is fixedly sleeved outside the rotating shaft, the second gear is meshed outside the second gear, the moving frame is fixedly connected outside the second rack, the contact rod is fixedly connected outside the moving frame, the stop rod is fixedly connected outside the second gear, the position of the stop rod and the gear are matched with the contact rod, the limiting plate is fixedly connected inside the body 1, the surface of the limiting plate is provided with a limiting groove, the moving frame is connected with the limiting groove in a sliding manner, the number of the second racks is two, and the two racks are respectively and fixedly connected with the upper end and the lower end of the inner surface of the movable frame, can drive the pressing block 3 to move, therefore, the compression amount of the first spring 2 is changed, and different acceleration is applied to the iron ball 5.

Remove subassembly 8's outside swing joint has promotion subassembly 9, promotion subassembly 9 is mainly by the branch pipe, branch, three springs, the push pedal, the extension board, electro-magnet two, iron plate one is constituteed, remove the outside fixedly connected with extension board of frame, the outside fixedly connected with branch pipe of extension board, the inside fixedly connected with electro-magnet two of branch pipe, spring three has been cup jointed in the inside activity of branch pipe, branch has been cup jointed in the inside activity of branch pipe, the outside fixedly connected with iron plate one of branch, the outside fixedly connected with push pedal of briquetting 3, branch and push pedal swing joint, drive briquetting 3 with removing subassembly 8 and remove each other, thereby change the acceleration size of iron ball 5.

The inner part of the body 1 is fixedly connected with a sleeve 10, the inner part of the sleeve 10 is movably sleeved with a push rod 11, the outer part of the push rod 11 is fixedly connected with a baffle 12, the outer part of the push rod 11 is fixedly connected with a rack I13, the outer part of the rack I13 is meshed with a gear I14, the inner part of the gear I14 is fixedly sleeved with a rotating rod 15, the outer part of the rotating rod 15 is movably connected with a limiting component 16, the limiting component 16 mainly comprises a ratchet wheel, a clamping rod, an electromagnet III, an iron block II, a spring IV, a vertical rod and a supporting plate, the inner part of the sleeve 10 is fixedly connected with the supporting plate, the outer part of the supporting plate is fixedly connected with the vertical rod, the outer part of the vertical rod is movably sleeved with the spring IV, the outer part of the vertical rod is fixedly connected with the electromagnet III, the outer part of the vertical rod is movably sleeved with the clamping rod II, the outer part of, meanwhile, the iron ball 5 cannot rebound under the resilience force of the second spring 17, and the second spring 17 is movably sleeved outside the first rack 13.

The working principle is that when the acceleration measuring device is used, the control center controls different lamp beads to be turned on, then the control center controls the electromagnet I4 to be powered on, and simultaneously controls the driving power supply to drive the rotating shaft to rotate, at the moment, the electromagnet II and the electromagnet III are in a power-off state, the electromagnet I4 is powered on and then attracted with the iron ball 5, so that the iron ball 5 can move along with the movement of the electromagnet I4, the rotating shaft rotates to drive the gear II to rotate, at the moment, the gear II is meshed with the upper rack II, so that the gear II rotates to drive the upper rack to move leftwards, the upper rack moves leftwards to drive the moving frame to move leftwards, the moving frame moves leftwards to drive the branch pipe to move leftwards, the branch pipe moves leftwards to drive the supporting rod to move leftwards, under the mutual matching of the pushing plate and the, the pressing block 3 moves leftwards to enable the spring I2 to compress, when the pressing block 3 moves to the position that the light-sensitive resistor receives light emitted by the lamp beads, at the moment, the resistance value of the photoresistor is reduced, the passing current is increased, so that the control center controls the driving power supply to stop driving the rotating shaft to rotate, meanwhile, the first electromagnet is controlled to be powered off and the second electromagnet is controlled to be powered on, the first electromagnet 4 after being powered off loses magnetism and is not mutually attracted with the iron ball 5, meanwhile, the electromagnet generates magnetism after being electrified and attracts the iron block I, the belt supporting rod moves downwards, when the supporting rod moves to be separated from the push plate, the pressing block 3 moves rightwards and drives the iron ball 5 to move rightwards under the action of the resilience force of the first spring 2, when the pressing block 3 moves to the rightmost end, the iron ball 5 is separated from the electromagnet I4 and continues to move rightwards, when the iron ball 5 passes through the acceleration measuring device, the acceleration of the iron ball 5 is measured by the acceleration measuring device.

The iron ball 5 continuously moves rightwards, after contacting with the baffle plate 12, the baffle plate 12 is driven to move rightwards together under the action of impact force, the baffle plate 12 moves rightwards to drive the push rod 11 to move rightwards, the push rod 11 moves rightwards to compress the spring II 17 so as to buffer and stop the impact force of the iron ball 5, the push rod 11 moves rightwards to drive the rack I13 to move rightwards, the rack I13 moves rightwards to drive the gear I14 to rotate, the gear I14 rotates to drive the rotating rod 15 to rotate, the rotating rod 15 rotates to drive the ratchet wheel to rotate, when the baffle plate 12 moves rightwards until the iron ball 5 does not move any more, the movement of the push rod 11 is limited through the mutual matching of the clamping rod and the ratchet wheel, so that the iron ball 5 is prevented from being driven to continuously move under the action of the rebound force of the spring II 17 to cause collision on other parts of the equipment, after the iron ball 5 stops, an expe, and the control center controls the third electromagnet to be electrified, the electrified third electromagnet and the second iron block attract each other to enable the clamping rod to be separated from the ratchet wheel, the push rod 11 moves leftwards to reset under the action of the resilience force of the second spring 17, the control center controls the driving power supply to drive the rotating shaft to rotate, the second gear is meshed with the second gear rack below at the moment, the rotating shaft rotates to drive the second gear to rotate, the second gear rotates to drive the rack to move rightwards, when the second gear rotates until the touch rod is contacted with the stop lever, the control center controls the driving power supply to stop driving the rotating shaft to rotate and controls the second electromagnet to be powered off at the moment, the second electromagnet after being powered off moves upwards under the action of the resilience force of the third spring to be contacted with the push plate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an acceleration measuring device is used in laboratory teaching, includes body (1), its characterized in that: the lamp comprises a body (1), wherein a first spring (2) is movably connected inside the body (1), a pressing block (3) is fixedly connected outside the first spring (2), a first electromagnet (4) is fixedly connected outside the pressing block (3), an iron ball (5) is movably connected outside the first electromagnet (4), a photosensitive component (6) is movably connected inside the pressing block (3), a lamp belt (7) is fixedly connected inside the body (1), a moving component (8) is movably connected inside the body (1), a pushing component (9) is movably connected outside the moving component (8), a sleeve (10) is fixedly connected inside the body (1), a push rod (11) is sleeved inside the sleeve (10) in a movable mode, a baffle (12) is fixedly connected outside the push rod (11), and a first rack (13) is fixedly connected outside the push rod (11), the external meshing of the first rack (13) is provided with a first gear (14), the internal part of the first gear (14) is fixedly sleeved with a rotating rod (15), the external part of the rotating rod (15) is movably connected with a limiting component (16), and the external part of the first rack (13) is movably sleeved with a second spring (17).

2. The acceleration measuring device for laboratory teaching according to claim 1, characterized in that: photosensitive element (6) mainly comprise shading shell, light trap, photo resistance, and the inside fixedly connected with shading shell of briquetting (3), the inside fixedly connected with photo resistance of shading shell, the light trap has been seted up on the surface of shading shell, and the inside in lamp area (7) is provided with the lamp pearl, and the quantity of lamp pearl is greater than five, and the position of lamp pearl, specification all with the photo resistance phase-match.

3. The acceleration measuring device for laboratory teaching according to claim 1, characterized in that: remove subassembly (8) mainly by the pivot, gear two, rack two, remove the frame, the limiting plate is constituteed, the inside swing joint of body (1) has the pivot, gear two has been cup jointed to the external fixation of pivot, gear two's outside meshing has rack two, rack two's outside fixedly connected with removes the frame, remove the outside fixedly connected with feeler lever of frame, gear two's outside fixedly connected with pin, the position of pin, the gear all with the feeler lever phase-match, the inside fixedly connected with limiting plate of body (1), the spacing groove has been seted up on the surface of limiting plate, remove frame and spacing groove sliding connection, the quantity of rack two is two, and two different fixed connections of rack are at the upper and lower both ends of removing the frame internal surface.

4. The acceleration measuring device for laboratory teaching according to claim 1, characterized in that: the push assembly (9) mainly comprises a branch pipe, a support rod, a third spring, a push plate, a support plate, a second electromagnet and a first iron block, the support plate is fixedly connected to the outside of the movable frame, the branch pipe is fixedly connected to the outside of the support plate, the second electromagnet is fixedly connected to the inside of the branch pipe, the third spring is sleeved on the inside of the branch pipe, the support rod is sleeved on the inside of the branch pipe, the first iron block is fixedly connected to the outside of the support rod, the push plate is fixedly connected to the outside of the press block (3), and the support rod is movably connected with.

5. The acceleration measuring device for laboratory teaching according to claim 1, characterized in that: spacing subassembly (16) mainly by the ratchet, the kelly, electro-magnet three, iron plate two, spring four, pole setting, backup pad are constituteed, the inside fixedly connected with backup pad of sleeve pipe (10), the outside fixedly connected with pole setting of backup pad, the outside activity of pole setting has cup jointed spring four, the outside fixedly connected with electro-magnet three of pole setting, the outside activity of pole setting has cup jointed the kelly, the inside fixedly connected with iron plate two of kelly, the outside fixed cover of bull stick (15) has cup jointed the ratchet, kelly and ratchet swing joint.

6. The acceleration measuring device for laboratory teaching according to claim 1, characterized in that: the surface of the electromagnet I (4) is provided with a groove, an iron ball (5) is movably connected to the surface of the groove, a ball outlet is formed in the surface of the body (1), a ball inlet is formed in the surface of the body (1), a ball taking port is formed in the surface of the body (1), the specifications of the ball outlet, the ball inlet and the ball taking port are matched with the iron ball (5), and the acceleration measurer is fixedly connected to the inside of the body (1).

7. The acceleration measuring device for laboratory teaching according to claim 1, characterized in that: the first electromagnet (4), the lamp strip (7), the rotating shaft, the second electromagnet, the third electromagnet and the driving power supply are all electrically connected with the control center, the rotating shaft is electrically connected with the control power supply, and the control center is electrically connected with the touch rod and the photosensitive resistor.