CN208873361U - A kind of high school physics freely falling body apparatus for demonstrating - Google Patents
A kind of high school physics freely falling body apparatus for demonstrating Download PDFInfo
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- CN208873361U CN208873361U CN201821278893.6U CN201821278893U CN208873361U CN 208873361 U CN208873361 U CN 208873361U CN 201821278893 U CN201821278893 U CN 201821278893U CN 208873361 U CN208873361 U CN 208873361U
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- Prior art keywords
- wall
- lead screw
- demonstration
- freely falling
- falling body
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Abstract
The utility model discloses the utility model proposes a kind of high school physics freely falling body apparatus for demonstrating, including pedestal, the bottom of the pedestal is provided with support leg, and demonstration box is bolted to connection at the top of pedestal, the interior bottom portion of the demonstration box is provided with hollow pipe and the second lead screw, the hollow pipe is located at the side of the second lead screw, and hollow pipe is internally provided with the first lead screw, one end of first lead screw is provided with the first handwheel, the other end is provided with the second handwheel, on the one hand the demonstration object that two differences are given effectively can be lifted to required demonstration height by the utility model, guarantee that two demonstration objects are in same level, guarantee the accuracy of subsequent freely falling body demonstration, improve demonstration convincingness and Physics Teaching Quality, on the other hand external wind can be stopped to fall demonstration object by closed demonstration box When influence, be further reduced the interference of external factor.
Description
Technical field
The utility model relates to freely falling body technical fields, and in particular to a kind of high school physics freely falling body demonstration dress
It sets.
Background technique
Freely falling body is the only object that lands under the effect of gravity not by any resistance, such as in the case where terrestrial gravitation acts on
The object to fall by stationary state, the overhead near earth surface are considered as constant gravitational field.
But the demonstration of existing physics freely falling body mostly use greatly instructor directly take demonstrate object and put down demonstration object into
Row demonstration, be easy to cause external interference factor to cause demonstrating precision low more in this way, persuades hypodynamic problem, it is difficult to guarantee object
On sustained height, it is difficult to guarantee object while falling, it is inconvenient for operation.
Utility model content
(1) technical problems to be solved
In order to overcome the shortage of prior art, it is proposed that a kind of high school physics freely falling body apparatus for demonstrating, it is existing to solve
The demonstration of some freely falling bodies be difficult to ensure demonstration object on sustained height and while the problem of fall, reduce outside when reaching demonstration
Disturbing factor improves demonstrating precision, improves the effect of demonstration convincingness.
(2) technical solution
The utility model is achieved through the following technical solutions: the utility model proposes a kind of high school physics freely falling bodies
Apparatus for demonstrating, including pedestal, the bottom of the pedestal is provided with support leg, and has been bolted to connection and has drilled at the top of pedestal
Show case, the interior bottom portion of the demonstration box is provided with hollow pipe and the second lead screw, and the hollow pipe is located at the side of the second lead screw,
And hollow pipe is internally provided with the first lead screw, one end of first lead screw is provided with the first handwheel, the other end is provided with
Two handwheels, and the outer wall of the first lead screw is provided with second gear, one end of second lead screw at the inside setting of pedestal
It is provided with first gear, the first gear engages connection with the second handwheel, revolves on the outer wall of second lead screw by screw thread
Conjunction is connected with the second lifting seat, is rotatably connected to the second support plate, institute by hinge on the side outer wall of second lifting seat
It states and is provided with pallet on the side outer wall of the second support plate, and set on the side outer wall in the second support plate far from the second lifting seat
It is equipped with the first support plate, rubber rods are provided on the side outer wall of first support plate, are led on the outer wall of first lead screw
Crossing threaded engagement connection has first lifting seat, and inserted link is provided on the side outer wall of the first lifting seat, the hollow pipe
Outer wall is arranged with pipe sleeve, and cage plate is provided on the outer wall of the pipe sleeve side, is revolved on the side outer wall of the hollow pipe by screw thread
Conjunction is connected with adjusting nut, is rotatably connected to chamber door, the side of the chamber door by hinge on the side outer wall of the demonstration box
Outer wall is embedded with transparency window, and the interior bottom portion of the demonstration box is provided with cushion.
Further, hole is offered on the side outer wall of the cage plate.
Further, there are two second lead screw is arranged altogether, and two the second lead screws are symmetricly set on the interior of demonstration box
Portion.
Further, slot is offered on the side outer wall of the hollow pipe.
Further, there are two the inserted link is arranged altogether, and two inserted links are symmetricly set on the outer wall of first lifting seat.
Further, it is opened up at a side position of handwheel on the side outer wall of the disk body fluted.
Further, the demonstration box is hollow cylindrical structure.
(3) beneficial effect is existing
The utility model compared with the existing technology, has the advantages that
1)；To solve the problems, such as that existing freely falling body demonstration is difficult to ensure demonstration object on sustained height, the design is used
The design of double second lead screws rotates the second handwheel, by the connection of engaging of first gear and second gear, first when in use
Gear drives the rotation of the second lead screw, is connect by the second lead screw with screwing for the second lifting seat, and the second lifting seat drives second
Fagging rises, and on the one hand the demonstration object that two differences are given effectively can be lifted to required demonstration height, guarantee two and drill
Show that object is in same level, guarantees the accuracy of subsequent freely falling body demonstration, improve demonstration convincingness and physics teaching matter
Amount, influence when on the other hand external wind can be stopped to fall demonstration object by closed demonstration box, is further reduced outer
The interference of portion's factor.
2)；To solve the problems, such as that the demonstration of existing freely falling body is difficult to ensure demonstration object while falling that the design is provided with
Inserted link and rubber rods rotate the first handwheel, and first lifting seat is gone up and down on the first lead screw, and first lifting seat drives inserted link decline simultaneously
It is inserted on cage plate, rubber rods are pushed out cage plate, and the second support plate is because self gravity is rotated around the second lifting seat, on pallet
It demonstrates object freely falling body to fall, can guarantee the accuracy of demonstration by the way that object freely falling body falls simultaneously, avoid demonstration object
The problem of fall time Different Effects demonstrating effect, improve the quality of the precision of demonstration.
Detailed description of the invention
Fig. 1 is the front view of the utility model；
Fig. 2 is the side view of the utility model；
Fig. 3 is the top view of the utility model；
In figure: 1- adjusting nut；2- first lifting seat；The first handwheel of 3-；The first lead screw of 4-；5- hollow pipe；6- inserted link；7-
Pipe sleeve；8- cage plate；9- rubber rods；The first support plate of 10-；11- pallet；12- demonstration box；The second lead screw of 13-；14- second is gone up and down
Seat；The second support plate of 15-；16- chamber door；17- transparency window；18- first gear；19- support leg；20- pedestal；21- second gear；
The second handwheel of 22-；23- cushion.
Specific embodiment
In order to make the purpose of this utility model；Technical solution and advantage are more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
A kind of high school physics freely falling body apparatus for demonstrating as shown in FIG. 1 to FIG. 3, including pedestal 20, the bottom of pedestal 20
It is provided with support leg 19, plays the role of support, guarantees the stability that apparatus for demonstrating is placed, and the top of pedestal 20 passes through bolt
It is fixedly connected with demonstration box 12, the interior bottom portion of demonstration box 12 is provided with hollow pipe 5 and the second lead screw 13, and hollow pipe 5 is located at the
The side of two lead screws 13, and hollow pipe 5 is internally provided with the first lead screw 4, one end of the first lead screw 4 is provided with the first handwheel 3,
The other end is provided with the second handwheel 22, and the outer wall of the first lead screw 4 is provided with second gear at the inside setting of pedestal 20
21, one end of the second lead screw 13 is provided with first gear 18, and first gear 18 engages connection with the second handwheel 22, convenient for guaranteeing to turn
When dynamic second handwheel 22, first gear 18 will drive the rotation of the second lead screw 13, so that the second lifting seat 14 is gone up and down, the second lead screw
There is the second lifting seat 14 by threaded engagement connection on 13 outer wall, is rotated on the side outer wall of the second lifting seat 14 by hinge
It is connected with the second support plate 15, is provided with pallet 11 on the side outer wall of the second support plate 15, convenient for placing demonstration object, and second
The first support plate 10 is provided on side outer wall in support plate 15 far from the second lifting seat 14, outside the side of the first support plate 10
It is provided with rubber rods 9 on wall, has first lifting seat 2, first lifting seat 2 by threaded engagement connection on the outer wall of the first lead screw 4
Side outer wall on be provided with inserted link 6, convenient for ejection rubber rods 9, to make the second support plate 15 around the second lifting seat 14
It rotates, the demonstration object on pallet 11 is fallen, and the outer wall of hollow pipe 5 is arranged with pipe sleeve 7, is provided with cage plate on 7 side outer wall of pipe sleeve
8, there is adjusting nut 1 by threaded engagement connection on the side outer wall of hollow pipe 5, passes through hinge on the side outer wall of demonstration box 12
It is rotatably connected to chamber door 16, the side outer wall of chamber door 16 is embedded with transparency window 17, is convenient for observing, the inner bottom of demonstration box 12
Portion is provided with cushion 23, plays the role of buffering, avoids demonstration object from hitting impaired.
Preferably, hole is offered on the side outer wall of cage plate 8, is inserted into convenient for rubber rods 9 and the second support plate 15 is fixed.
Further, there are two the second lead screw 13 is arranged altogether, and two the second lead screws 13 are symmetricly set on demonstration box 12
Two different demonstration objects can be lifted by inside, guarantee together.
Further, slot is offered on the side outer wall of hollow pipe 5, risen convenient for first lifting seat 2 in the first lead screw 4
Drop.
Specifically, there are two the total settings of inserted link 6, and two inserted links 6 are symmetricly set on the outer wall of first lifting seat 2, are protected
Card demonstration object is fallen simultaneously.
It is worth explanation, demonstration box 12 is hollow cylindrical structure, demonstrates object convenient for better taking and placing.
A kind of high school physics freely falling body apparatus for demonstrating that the utility model is mentioned opens chamber door 16 when in use, will
Rubber rods 9 are inserted on cage plate 8, and the demonstration object that freely falling body is demonstrated is placed on pallet 11, rotate the second handwheel 22, the second handwheel
22 drive second gear 21 to rotate, and are connect by first gear 18 with the engagement of second gear 21, and first gear 18 drives second
Lead screw 13 rotates, and is connect by the second lead screw 13 with the second screwing for lifting seat 14, and the second lifting seat 14 drives the second support plate
15 rise, and when the second lifter plate 15 rises to required demonstration height of drop, tighten adjusting nut 1, rotate the first handwheel 3,
It is connect by first lifting seat 2 with the first screwing for lead screw 4, first lifting seat 2 is gone up and down on the first lead screw 4, first lifting seat 2
It drives inserted link 6 to decline simultaneously to be inserted on cage plate 8, rubber rods 9 are pushed out cage plate 8, and the second support plate 15 is because self gravity is around the
Two lifting seats 14 rotate, and the demonstration object freely falling body on pallet 11 falls, and finally fall on cushion 23, complete freely falling body
Demonstration.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple
The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality
With novel claimed technology contents, it is all described in the claims.
Claims (6)
1. a kind of high school physics freely falling body apparatus for demonstrating, including pedestal (20), it is characterised in that: the bottom of the pedestal (20)
Portion is provided with support leg (19), and demonstration box (12), the demonstration box have been bolted to connection at the top of pedestal (20)
(12) interior bottom portion is provided with hollow pipe (5) and the second lead screw (13), and the hollow pipe (5) is located at the one of the second lead screw (13)
Side, and hollow pipe (5) is internally provided with the first lead screw (4), one end of first lead screw (4) is provided with the first handwheel (3),
The other end is provided with the second handwheel (22), and the outer wall of the first lead screw (4) is provided at the inside setting of pedestal (20)
One end of two gears (21), second lead screw (13) is provided with first gear (18), the first gear (18) and second-hand
(22) engagement connection is taken turns, is had the second lifting seat (14) on the outer wall of second lead screw (13) by threaded engagement connection, it is described
It is rotatably connected to the second support plate (15) on the side outer wall of second lifting seat (14) by hinge, second support plate (15)
Side outer wall on be provided with pallet (11), and in the second support plate (15) far from the second lifting seat (14) side outer wall on set
It is equipped with the first support plate (10), is provided with rubber rods (9) on the side outer wall of first support plate (10), first lead screw
(4) have first lifting seat (2) on outer wall by threaded engagement connection, be arranged on the side outer wall of the first lifting seat (2)
Have inserted link (6), the outer wall of the hollow pipe (5) is arranged with pipe sleeve (7), is provided with cage plate on the outer wall of pipe sleeve (7) side
(8), have adjusting nut (1) on the side outer wall of the hollow pipe (5) by threaded engagement connection, the one of the demonstration box (12)
It is rotatably connected to chamber door (16) on the outer wall of side by hinge, the side outer wall of the chamber door (16) is embedded with transparency window (17), institute
The interior bottom portion for stating demonstration box (12) is provided with cushion (23).
2. a kind of high school physics freely falling body apparatus for demonstrating according to claim 1, it is characterised in that: the cage plate
(8) hole is offered on side outer wall.
3. a kind of high school physics freely falling body apparatus for demonstrating according to claim 1, it is characterised in that: described second
There are two thick stick (13) is arranged altogether, and two the second lead screws (13) are symmetricly set on the inside of demonstration box (12).
4. a kind of high school physics freely falling body apparatus for demonstrating according to claim 1, it is characterised in that: the hollow pipe
(5) slot is offered on side outer wall.
5. a kind of high school physics freely falling body apparatus for demonstrating according to claim 1, it is characterised in that: the inserted link
(6) altogether there are two settings, and two inserted links (6) are symmetricly set on the outer wall of first lifting seat (2).
6. a kind of high school physics freely falling body apparatus for demonstrating according to claim 1, it is characterised in that: the demonstration box
It (12) is hollow cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821278893.6U CN208873361U (en) | 2018-08-09 | 2018-08-09 | A kind of high school physics freely falling body apparatus for demonstrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821278893.6U CN208873361U (en) | 2018-08-09 | 2018-08-09 | A kind of high school physics freely falling body apparatus for demonstrating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208873361U true CN208873361U (en) | 2019-05-17 |
Family
ID=66464365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821278893.6U Expired - Fee Related CN208873361U (en) | 2018-08-09 | 2018-08-09 | A kind of high school physics freely falling body apparatus for demonstrating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208873361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112652226A (en) * | 2021-01-26 | 2021-04-13 | 武汉理工大学 | Model exhibition stand for architectural design teaching |
-
2018
- 2018-08-09 CN CN201821278893.6U patent/CN208873361U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112652226A (en) * | 2021-01-26 | 2021-04-13 | 武汉理工大学 | Model exhibition stand for architectural design teaching |
| CN112652226B (en) * | 2021-01-26 | 2022-06-03 | 武汉理工大学 | A model stand for architectural design teaching |
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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: 20190517 Termination date: 20200809 |