CN209962510U - Acceleration experimental apparatus for physics teaching - Google Patents
Acceleration experimental apparatus for physics teaching Download PDFInfo
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- CN209962510U CN209962510U CN201920226108.0U CN201920226108U CN209962510U CN 209962510 U CN209962510 U CN 209962510U CN 201920226108 U CN201920226108 U CN 201920226108U CN 209962510 U CN209962510 U CN 209962510U
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- connecting rod
- plate
- cushion
- experimental apparatus
- photoelectric
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Abstract
The utility model belongs to the experimental apparatus field specifically is an acceleration experimental apparatus for physical teaching, including bottom plate, fixed plate, input board, guard plate, the cushion glues the bottom plate up end, the cushion material is the sponge, be provided with the recess in the cushion, the cushion rear end is provided with the fixed plate, the fixed plate passes through the bolt fastening the bottom plate up end, be provided with the spacing groove in the fixed plate, the spacing inslot is provided with first connecting rod. Through the utility model discloses set first photoelectricity door and second photoelectricity door to and reciprocate to can change the distance of first photoelectricity door and second photoelectricity door, utilize pull rod pulling baffle, just can realize the free fall of laboratory ball, improve the accuracy and the convenience of device, can prevent at the in-process that the device removed the bump at the guard plate, the straightness accuracy deviation appears, lead to the device degree of accuracy to reduce, and can utilize and get the thing hole and take out from the cushion very convenient with the bobble of experiment.
Description
Technical Field
The utility model belongs to the experimental apparatus field specifically is a acceleration experimental apparatus for physical teaching is related to.
Background
The measurement mode of the gravity acceleration of students is often taught during physical teaching, for the gravity acceleration, the upper photoelectric door is placed near the initial position of the falling of the small ball, and the lower photoelectric door is placed near the half height of the device to measure the coordinate x of the two photoelectric doors0,x1Then the distance h between the two photogates1＝x0-x1Releasing the ball and recording the time t when the ball falls through the two photoelectric gates1(ii) a Is held downThe photoelectric gate moves downwards to the vicinity of the ball catcher, and the coordinate x of the lower photoelectric gate is measured2The distance h between the two photogates2＝x0-x2Releasing the ball and recording the time t when the ball falls through the two photoelectric gates2Let the speed of the small ball falling through the glazing gate be v0And then calculating according to a gravity formula.
The photoelectric door position of present acceleration of gravity teaching device is fixed, only need can obtain acceleration of gravity with fixed numerical value input, and the student can not manual operation, and the efficiency of study is not high to the device lacks protection device, if the straightness accuracy produces the deviation because the collision, then can cause the influence to the result.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an acceleration experimental apparatus for physical teaching.
The utility model discloses the technical scheme who adopts as follows:
an acceleration experimental device for physics teaching comprises a bottom plate, a fixing plate, an input plate and a protection plate, wherein a cushion is adhered to the upper end surface of the bottom plate, the cushion is made of sponge, a groove is arranged in the cushion, the fixing plate is arranged at the rear end of the cushion and is fixed on the upper end surface of the bottom plate through bolts, a limiting groove is arranged in the fixing plate, a first connecting rod is arranged in the limiting groove, a first nut is arranged on the first connecting rod, the front end surface of the first connecting rod is fixed on the rear end surface of a first photoelectric door through a screw, a first spacer is arranged on the rear end surface of the first photoelectric door, a second connecting rod is arranged below the first connecting rod, a second nut is arranged on the second connecting rod, the front end surface of the second connecting rod is fixed on the rear end surface of a second photoelectric door through a screw, and a second spacer is arranged on, the input plate is fixed at the upper end of the fixing plate through screws, a placing hole and a sliding groove are formed in the input plate, a baffle is arranged in the sliding groove, a pull rod is fixedly connected to one side of the baffle through threads, a return spring is welded to one side of the baffle, the protection plate is clamped between the input plate and the bottom plate, a material taking hole is formed in the lower end of the protection plate, a display is installed at the front end of the protection plate through screws, the type of the display is ECX339A, and a graduated scale is fixed to one side of the protection plate through screws.
Preferably: the number of the limiting grooves is two, the limiting grooves are symmetrical relative to the center point of the fixing plate, the number of the first connecting rods and the number of the second connecting rods are two, and the shapes of the materials of the second connecting rods and the first connecting rods are the same.
By the arrangement, the positions of the first photoelectric door and the second photoelectric door can be conveniently adjusted, and the first nut and the second nut can be screwed when the photoelectric door is used, so that the distance between the first photoelectric door and the second photoelectric door is controlled.
Preferably: the front end face of the first spacer is bonded with the rear end face of the first photoelectric door, the first spacer is wrapped on the outer side of the first connecting rod, the front end face of the second spacer is bonded with the rear end face of the second photoelectric door, and the second spacer is wrapped on the outer side of the second connecting rod.
With the arrangement, when the first photoelectric door and the second photoelectric door are fixed in position, the pressure received by the device can be relieved by the first spacer and the second spacer.
Preferably: the placing hole is communicated with the input plate, the sliding groove is arranged in the middle of the placing hole, and the baffle is connected with the sliding groove in a sliding mode.
With the arrangement, when the small balls are required to do free-falling body movement, the pull rod can be held by hands, the baffle plate is pulled to move, and therefore the small balls fall from the placing holes.
Preferably: one end of the return spring is welded on one side of the baffle plate, and the other end of the return spring is welded in the input plate.
According to the arrangement, after the small ball falls down, the pull rod is loosened, and the return spring can make the baffle reset by utilizing the elasticity of the return spring.
Preferably: the object taking hole is arranged at a position close to the soft cushion.
So set up, after measuring the experiment, can make things convenient for operating personnel to pass through get the thing hole and follow the bobble of experiment usefulness is taken out in the cushion.
Preferably: the first photoelectric gate and the second photoelectric gate are electrically connected with the display.
By the arrangement, the automation degree of the device can be improved through an electric connection mode, and the first photoelectric gate and the second photoelectric gate can accurately sense the falling time difference of the small ball.
The utility model has the advantages that:
1. the first photoelectric door and the second photoelectric door are arranged to move up and down, so that the distance between the first photoelectric door and the second photoelectric door can be changed, and the operability of the device is improved;
2. the baffle is pulled by the pull rod, so that the experimental small ball can freely fall, and the accuracy and convenience of the device are improved;
3. can prevent at the guard plate that the device from colliding at the in-process that removes, the straightness accuracy deviation appears, leads to the device degree of accuracy to reduce to can utilize the bobble of getting the thing hole and will experiment very convenient take out from the cushion.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic perspective view of an acceleration experimental apparatus for physics teaching according to the present invention;
fig. 2 is a schematic view of an internal structure of an acceleration experimental apparatus for physics teaching according to the present invention;
fig. 3 is a rear view of the acceleration experiment device for physics teaching of the present invention;
fig. 4 is an internal left side view of the acceleration experiment device for physics teaching according to the present invention;
fig. 5 is a cross-sectional view of an input board of the acceleration experiment device for physics teaching according to the present invention;
fig. 6 is a circuit structure flow diagram of the acceleration experimental apparatus for physics teaching.
The reference numerals are explained below:
1. a base plate; 2. a soft cushion; 3. a groove; 4. a fixing plate; 5. a limiting groove; 6. a first link; 7. a first nut; 8. a first photogate; 9. a first spacer; 10. a second link; 11. a second nut; 12. a second photogate; 13. a second spacer; 14. inputting a board; 15. placing holes; 16. a chute; 17. a baffle plate; 18. a pull rod; 19. a return spring; 20. a protection plate; 21. taking a hole; 22. a display; 23. a graduated scale.
Detailed Description
The present invention will be further described with reference to the following examples and drawings.
Example 1
As shown in fig. 1-6, an acceleration experiment device for physics teaching comprises a bottom plate 1, a fixing plate 4, an input plate 14, a protection plate 20, a cushion 2 adhered on the upper end surface of the bottom plate 1, the cushion 2 made of sponge, a groove 3 arranged in the cushion 2, the groove 3 for placing small balls, the fixing plate 4 arranged at the rear end of the cushion 2, the fixing plate 4 for installing a limit groove 5, the fixing plate 4 fixed on the upper end surface of the bottom plate 1 by bolts, the limit groove 5 arranged in the fixing plate 4, the limit groove 5 for facilitating the up-and-down movement of a first connecting rod 6 and a second connecting rod 10, a first connecting rod 6 arranged in the limit groove 5, the first connecting rod 6 for installing a first photoelectric door 8, a first nut 7 arranged on the first connecting rod 6, the first nut 7 for fixing the position of the first connecting rod 6, the front end surface of the first connecting rod 6 fixed on the rear, a first spacer 9 is arranged on the rear end face of the first photoelectric door 8, the first spacer 9 is used for reducing the pressure applied to the first photoelectric door 8, a second connecting rod 10 is arranged below the first connecting rod 6, the second connecting rod 10 is used for installing a second photoelectric door 12, a second nut 11 is arranged on the second connecting rod 10, the second nut 11 is used for fixing the position of the second connecting rod 10, the front end face of the second connecting rod 10 is fixed on the rear end face of the second photoelectric door 12 through screws, a second spacer 13 is arranged on the rear end face of the second photoelectric door 12, the second spacer 13 is used for reducing the pressure applied to the second photoelectric door 12, the input plate 14 is fixed on the upper end of the fixed plate 4 through screws, a placing hole 15 and a sliding groove 16 are arranged in the input plate 14, the placing hole 15 is used for enabling a small ball to pass through, the sliding groove 16 is used for enabling the baffle 17 to slide, the baffle 17 is arranged in the sliding groove 16 and is used for stopping the, baffle 17 one side is fixed with pull rod 18 through threaded connection, pull rod 18 is used for being convenient for stimulate baffle 17, baffle 17 one side welding has reset spring 19, reset spring 19 is used for making baffle 17 reset again, the card has guard plate 20 between input board 14 and the bottom plate 1, guard plate 20 is used for placer collision, guard plate 20 lower extreme is provided with gets thing hole 21, it is used for taking out the laboratory ball in the convenience to get thing hole 21, there is display 22 guard plate 20 front end through the mounting screw, display 22 is used for showing the data that first photogate 8 and second photogate 12 measured, guard plate 20 one side has scale 23 through the fix with screw, scale 23 is used for recording the relative position of first photogate 8 and second photogate 12.
Example 2
This example differs from example 1 in that:
the number of the limiting grooves 5 is two, the limiting grooves are symmetrical relative to the center point of the fixing plate 4, the number of the first connecting rods 6 and the number of the second connecting rods 10 are two, the shapes of the materials of the second connecting rods 10 and the first connecting rods 6 are the same, the positions of the first photoelectric door 8 and the second photoelectric door 12 are convenient to adjust, the first nut 7 and the second nut 11 can be screwed when the photoelectric door is used, and therefore the distance between the first photoelectric door 8 and the second photoelectric door 12 is controlled.
The working principle is as follows: firstly, a student twists a first nut 7 and a second nut 11, adjusts the positions of a first photoelectric door 8 and a second photoelectric door 12, records the positions of a graduated scale 23 corresponding to the first photoelectric door 8 and the second photoelectric door 12 at that time, then puts an experimental small ball into a placing hole 15, pulls a pull rod 18, the pull rod 18 pulls a baffle 17 open, the small ball starts to move freely falling from a fixed height, firstly, the first recording is carried out by the first photoelectric door 8 through the first photoelectric door 8, secondly, the second recording is carried out by the second photoelectric door 12 through the second photoelectric door 12, and finally, the small ball falls into a groove 3 of a cushion 2, data recorded by the first photoelectric door 8 and the second photoelectric door 12 is transmitted to a display 22, so that people can observe the small ball conveniently, and then the student calculates the value of the gravity acceleration according to a formula.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. The utility model provides an acceleration experimental apparatus for physics teaching which characterized in that: the photoelectric door comprises a bottom plate, a fixing plate, an input plate and a protection plate, wherein a cushion is adhered to the upper end surface of the bottom plate, the cushion is made of sponge, a groove is formed in the cushion, the fixing plate is arranged at the rear end of the cushion and fixed on the upper end surface of the bottom plate through bolts, a limiting groove is formed in the fixing plate, a first connecting rod is arranged in the limiting groove, a first nut is arranged on the first connecting rod, the front end surface of the first connecting rod is fixed on the rear end surface of a first photoelectric door through screws, a first spacer is arranged on the rear end surface of the first photoelectric door, a second connecting rod is arranged below the first connecting rod, a second nut is arranged on the second connecting rod, the front end surface of the second connecting rod is fixed on the rear end surface of a second photoelectric door through screws, a second spacer is arranged on the rear end surface of the second photoelectric, the intelligent input board is characterized in that a placing hole and a sliding groove are formed in the input board, a baffle is arranged in the sliding groove, a pull rod is fixedly connected to one side of the baffle through threads, a reset spring is welded to one side of the baffle, the protection board is clamped between the input board and the bottom board, a material taking hole is formed in the lower end of the protection board, a display is installed at the front end of the protection board through screws, and a graduated scale is fixedly arranged on one side of the protection board through screws.
2. The acceleration experimental apparatus for physics teaching of claim 1, characterized in that: the number of the limiting grooves is two, the limiting grooves are symmetrical relative to the center point of the fixing plate, the number of the first connecting rods and the number of the second connecting rods are two, and the shapes of the materials of the second connecting rods and the first connecting rods are the same.
3. The acceleration experimental apparatus for physics teaching of claim 2, characterized in that: the front end face of the first spacer is bonded with the rear end face of the first photoelectric door, the first spacer is wrapped on the outer side of the first connecting rod, the front end face of the second spacer is bonded with the rear end face of the second photoelectric door, and the second spacer is wrapped on the outer side of the second connecting rod.
4. The acceleration experimental apparatus for physics teaching of claim 3, characterized in that: the placing hole is communicated with the input plate, the sliding groove is arranged in the middle of the placing hole, and the baffle is connected with the sliding groove in a sliding mode.
5. The acceleration experimental apparatus for physics teaching of claim 4, characterized in that: one end of the return spring is welded on one side of the baffle plate, and the other end of the return spring is welded in the input plate.
6. The acceleration experimental apparatus for physics teaching of claim 5, characterized in that: the object taking hole is arranged at a position close to the soft cushion.
7. The acceleration experimental apparatus for physics teaching of claim 6, characterized in that: the first photoelectric gate and the second photoelectric gate are electrically connected with the display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920226108.0U CN209962510U (en) | 2019-02-23 | 2019-02-23 | Acceleration experimental apparatus for physics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920226108.0U CN209962510U (en) | 2019-02-23 | 2019-02-23 | Acceleration experimental apparatus for physics teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209962510U true CN209962510U (en) | 2020-01-17 |
Family
ID=69238462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920226108.0U Expired - Fee Related CN209962510U (en) | 2019-02-23 | 2019-02-23 | Acceleration experimental apparatus for physics teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209962510U (en) |
-
2019
- 2019-02-23 CN CN201920226108.0U patent/CN209962510U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200117 Termination date: 20210223 |