CN209281702U

CN209281702U - A kind of high school student's physics teaching acceleration test inclined plane demonstrating device

Info

Publication number: CN209281702U
Application number: CN201821439402.1U
Authority: CN
Inventors: 朱华
Original assignee: Liu Si Qi
Current assignee: Liu Si Qi
Priority date: 2018-09-04
Filing date: 2018-09-04
Publication date: 2019-08-20
Anticipated expiration: 2028-09-04

Abstract

The utility model relates to physical teaching aid technical fields, and disclose a kind of high school student's physics teaching acceleration test inclined plane demonstrating device, including fixed substrate, there are four equally distributed supporting legs for the bottom fixed installation of the fixed substrate, side at the top of the fixed substrate is fixedly installed with side position baffle, it is located at the fixed block of side position baffle side there are two being fixedly connected at the top of the fixed substrate, the inside of two fixed blocks is fixedly connected by motion bar, the outside of the motion bar and the bottom movable set of placement plate.High school student's physics teaching acceleration test inclined plane demonstrating device, pass through being used cooperatively for placement plate and clamp device, convenient for the test board in placement plate is replaced, allow the device to the variation preferably according to friction media, and then it studies its velocity variations and then leads to the variation of acceleration, the variation to rub to acceleration is better understood convenient for student, improves the efficiency of teaching.

Description

A kind of high school student's physics teaching acceleration test inclined plane demonstrating device

Technical field

The utility model relates to physical teaching aid technical field, specially a kind of high school student's physics teaching is surveyed with acceleration Try inclined plane demonstrating device.

Background technique

Physics is to study the subject of motion of matter universal law and substance basic structure, takes the lead to learn as natural science Section, physics research become it greatly to universe, as low as all substances such as elementary particle most basic forms of motion and rule The Research foundation of his each natural branch of science, so needing experiment and observation repeatedly to examine.

In existing physics teaching experiment, generally require to be shown student preferably to allow student to go to understand, So that practice and theory combine, and when the acceleration that measuring speed generates, measuring device is not easy to adjust the angle on slope The variation that speed generates is expressed, and is difficult to that it is fixed, slope is easy to shake when measurement, and cannot rub to slope It wipes medium to be replaced, preferably to study acceleration, thus it is proposed that a kind of high school student's physics teaching acceleration test Inclined plane demonstrating device.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of high school student's physics teaching acceleration test inclined-plane Apparatus for demonstrating has the advantages of convenient for adjusting the angle on slope and replacement friction media, solves measuring device and be not easy to adjust The variation that the angle expression speed on slope generates, and is difficult to that it is fixed, and slope is easy to shake when measurement, and cannot The friction media on slope is replaced, the problem of preferably to study acceleration.

The utility model provides the following technical solutions: a kind of high school student's physics teaching acceleration test inclined-plane demonstration dress It sets, including fixed substrate, there are four equally distributed supporting leg, the fixed substrates for the bottom fixed installation of the fixed substrate The side at top is fixedly installed with side position baffle, is fixedly connected with that there are two be located at side position baffle side at the top of the fixed substrate Fixed block, the inside of two fixed blocks is fixedly connected by motion bar, the outside of the motion bar and the bottom of placement plate Portion's movable set offers locating slot at the top of the placement plate, test board, and test board is placed with above the placement plate Bottom fixing sleeve the positioning plate being located inside locating slot is housed, there are two the front and back of the placement plate is threadedly coupled Clamp device, and one end of clamp device extends to the inside of locating slot and connect with the external activity of positioning plate, the fixation The other side of substrate top opens up fluted, and the inside of the groove is fixedly connected with connecting rod, the connecting rod it is external living Dynamic to be set with sliding shoe, the side of the sliding shoe is driven by the side wall of the adjustable spring and groove that are located in connecting rod to be connected It connects, the side fixing sleeve at the top of the sliding shoe is equipped with fixed device, and the outer of fixed substrate is extended at the top of fixed device Portion, the other side fixing sleeve of the groove top are equipped with the limited block for being located at fixed device side, prolong at the top of the limited block The outside of fixed substrate is extended to, and the front of limited block is connected by the lower rotation of adapting rod and support rod, the support rod Top connected by the internal activity of adapting rod and limited block, and the side of the top of limited block and placement plate bottom is fixed connects It connects, the side at the top of the fixed substrate is fixedly installed with the rack for being located at and placing back.

Preferably, the clamp device includes anchorage bar, and the anchorage bar thread set is described tight in the inside of placement plate One end fixing sleeve of solid rod is equipped with the spill spin block being located at outside placement plate, and the other end of the anchorage bar extends to the interior of locating slot Portion is simultaneously fixedly connected with the front of crushing block, and the back side of the crushing block is flexibly connected with the front of positioning plate.

Preferably, the fixed device includes threaded rod, is fixedly connected at the top of the bottom end of the threaded rod and sliding shoe, The top of the threaded rod extends to the outside of fixed substrate, and the external fixing sleeve of the threaded rod, which is equipped with, to be located in fixed substrate The rubber sheet gasket of side, the external screw-thread of the threaded rod are set with the hold-doun nut above rubber sheet gasket.

Preferably, the through slot to connect with groove is offered at the top of the fixed substrate, and is penetrated through in fixed substrate The shape of slot is rectangle.

Preferably, side position baffle is provided with protective plate close to the side of fixed block, and on the baffle of side position and protective plate Material be rubber.

Preferably, the size of the sliding shoe is adapted with the size of groove, and sliding shoe outwardly and inwardly respectively with The side wall of groove is connected with the slide outside of connecting rod.

Be compared with the prior art, the utility model have it is following the utility model has the advantages that

1, high school student's physics teaching acceleration test inclined plane demonstrating device, passes through the cooperation of placement plate and clamp device It uses, convenient for replacing the test board in placement plate, allows the device to the variation preferably according to friction media, into And study its velocity variations and then lead to the variation of acceleration, the variation to rub to acceleration is better understood convenient for student, is mentioned The high efficiency of teaching.

2, high school student's physics teaching acceleration test inclined plane demonstrating device passes through connecting rod, sliding shoe, flexible bullet Spring, fixed device and support rod are used cooperatively, and are adjusted convenient for the gradient to placement plate, so that the device slope change is more Add conveniently, velocity variations are more obvious, and then are more convenient to study acceleration, preferably go to understand convenient for student, simultaneously So that it is more stable between the apparatus structure, the shaking of the placement plate in test is avoided, and then demonstrated when influence measurement Effect.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the structural schematic diagram of the utility model placement plate；

Fig. 3 is the structural schematic diagram of the utility model clamp device；

Fig. 4 is the structural schematic diagram of the fixed device of the utility model.

In figure: 1, fixed substrate；2, side position baffle；3, fixed block；4, motion bar；5, placement plate；6, locating slot；7, it tests Plate；8, positioning plate；9, clamp device；91, anchorage bar；92, spill spin block；93, crushing block；10, groove；11, connecting rod；12, sliding Motion block；13, adjustable spring；14, fixed device；141, threaded rod；142, rubber sheet gasket；143, hold-doun nut；15, limited block； 16, adapting rod；17, support rod；18, rack.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-4, a kind of high school student's physics teaching acceleration test inclined plane demonstrating device, including fixed substrate 1 are please referred to, The top of fixed substrate 1 offers the through slot to connect with groove 10, and the shape of through slot is rectangular in fixed substrate 1 Shape is adjusted the angle of placement plate 5, guarantees convenient for limited block 15 and fixed device 14 in the top slide of fixed substrate 1 Adjusting to speed, more enough better displayings study acceleration, improve the quality of teaching, the bottom of fixed substrate 1 is fixed There are four equally distributed supporting leg, the side at 1 top of fixed substrate is fixedly installed with side position baffle 2 for installation, and side position baffle 2 leans on The side of nearly fixed block 3 is provided with protective plate, and on the baffle 2 of side position and the material of protective plate is rubber, avoid in test plus When speed, falling and then damaging for object is measured, improves the practicability of device, the top of fixed substrate 1 is fixedly connected with two A fixed block 3 positioned at side position 2 side of baffle, the inside of two fixed blocks 3 is fixedly connected by motion bar 4, outside motion bar 4 The bottom movable set in portion and placement plate 5, the top of placement plate 5 offer locating slot 6, and the top of placement plate 5 is placed with test Plate 7, and the bottom fixing sleeve of test board 7 is equipped with the positioning plate 8 being located inside locating slot 6, the equal spiral shell of the front and back of placement plate 5 There are two clamp device 9, clamp device 9 includes anchorage bar 91 for line connection, 91 thread set of anchorage bar in the inside of placement plate 5, One end fixing sleeve of anchorage bar 91 is equipped with the spill spin block 92 being located at outside placement plate 5, and the other end of anchorage bar 91 extends to positioning The inside of slot 6 is simultaneously fixedly connected with the front of crushing block 93, and the back side of crushing block 93 is flexibly connected with the front of positioning plate 8, is led to The setting of clamp device 9 is crossed, convenient for replacing the test board 7 in placement plate 5, preferably basis is allowed the device to and rubs The variation of medium is wiped, and then studies its velocity variations and then leads to the variation of acceleration, better understands friction pair convenient for student The variation of acceleration, improves the efficiency of teaching, and one end of clamp device 9 extend to locating slot 6 inside and with positioning plate 8 External activity connection, the other side at the top of fixed substrate 1 opens up fluted 10, and the inside of groove 10 is fixedly connected with connecting rod 11, the external activity of connecting rod 11 is set with sliding shoe 12, and the size of sliding shoe 12 is adapted with the size of groove 10, and slides Outwardly and inwardly connecting respectively with the slide outside of the side wall of groove 10 and connecting rod 11 for block 12, passes through groove 10 and sliding shoe 12 are used cooperatively, so that it is more stable between the apparatus structure, avoid the shaking of the placement plate 5 in test, Jin Erying The effect demonstrated when measurement is rung, the efficiency of teaching is improved, the side of sliding shoe 12 passes through the flexible bullet in connecting rod 11 The side wall of spring 13 and groove 10 is sequentially connected, and the side fixing sleeve at 12 top of sliding shoe is equipped with fixed device 14, fixed device 14 Including threaded rod 141, the bottom end of threaded rod 141 is fixedly connected with the top of sliding shoe 12, and the top of threaded rod 141 extends to solid Determine the outside of substrate 1, the external fixing sleeve of threaded rod 141 is equipped with the rubber sheet gasket 142 for being located at 1 top of fixed substrate, threaded rod 141 external screw-thread is set with the hold-doun nut 143 above rubber sheet gasket 142, by the setting of fixed device 14, is convenient for The gradient of placement plate 5 is adjusted, so that the device slope change is more convenient, velocity variations are more obvious, and then more square Just acceleration is studied, preferably goes to understand convenient for student, and the top of fixed device 14 extends to the outer of fixed substrate 1 The other side fixing sleeve in portion, 10 top of groove is equipped with the limited block 15 for being located at fixed 14 side of device, and the top of limited block 15 is prolonged The outside of fixed substrate 1 is extended to, and the front of limited block 15 is connect by adapting rod 16 with the lower rotation of support rod 17, supported The top of bar 17 is connect by adapting rod 16 with the internal activity of limited block 15, and the top of limited block 15 and 5 bottom of placement plate Side be fixedly connected, the side at the top of fixed substrate 1 is fixedly installed with the rack 18 positioned at 5 back side of placement plate.

Working principle twists hold-doun nut 143 according to the demand used first, so that hold-doun nut 143 is released to sliding The extruding of block 12 fetters, and support rod 17 is pushed, so that sliding shoe 12 slides in connecting rod 11 and groove 10, while sliding shoe 12 It is press-connected bar 11, so that the bottom of placement plate 5 is slided on motion bar 4, and then is adjusted the height of placement plate 5, when When needing replacing test board 7, spill spin block 92 is twisted, so that anchorage bar 91 and crushing block 93 rotate, crushing block 93 is released to positioning The extruding of plate 8 fetters, and different media is replaced at the top of placement plate 5, is finally fixed.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of high school student's physics teaching acceleration test inclined plane demonstrating device, including fixed substrate (1), it is characterised in that: The bottom of the fixed substrate (1) is fixedly mounted there are four equally distributed supporting leg, the side at the top of the fixed substrate (1) It is fixedly installed with side position baffle (2), is fixedly connected with that there are two be located at side position baffle (2) side at the top of the fixed substrate (1) Fixed block (3), the inside of two fixed blocks (3) is fixedly connected by motion bar (4), the outside of the motion bar (4) With the bottom movable set of placement plate (5), offer locating slot (6) at the top of the placement plate (5), the placement plate (5) Top is placed with test board (7), and the bottom fixing sleeve of test board (7) is equipped with and is located at locating slot (6) internal positioning plate (8), The front and back of the placement plate (5) is threadedly coupled there are two clamp device (9), and one end of clamp device (9) extends To locating slot (6) inside and connect with the external activity of positioning plate (8), the other side at the top of the fixed substrate (1) opens up The inside of fluted (10), the groove (10) is fixedly connected with connecting rod (11), the external activity set of the connecting rod (11) Equipped with sliding shoe (12), the side of the sliding shoe (12) passes through the adjustable spring (13) and groove on connecting rod (11) (10) side wall is sequentially connected, and the side fixing sleeve at the top of the sliding shoe (12) is equipped with fixed device (14), and fixed device (14) outside of fixed substrate (1) is extended at the top of, the other side fixing sleeve at the top of the groove (10) is equipped with to be located at and fix The limited block (15) of device (14) side extends to the outside of fixed substrate (1), and limited block at the top of the limited block (15) (15) front is connect by adapting rod (16) with the lower rotation of support rod (17), and the top of the support rod (17) is by turning Extension bar (16) is connect with the internal activity of limited block (15), and the side of the top of limited block (15) and placement plate (5) bottom is solid Fixed to connect, the side at the top of the fixed substrate (1) is fixedly installed with the rack (18) positioned at placement plate (5) back side.

2. a kind of high school student's physics teaching acceleration test inclined plane demonstrating device according to claim 1, feature exist In: the clamp device (9) includes anchorage bar (91), and anchorage bar (91) thread set is described in the inside of placement plate (5) One end fixing sleeve of anchorage bar (91), which is equipped with, is located at placement plate (5) external spill spin block (92), the anchorage bar (91) it is another End extends to the inside of locating slot (6) and is fixedly connected with the front of crushing block (93), the back side of the crushing block (93) and fixed The front of position plate (8) is flexibly connected.

3. a kind of high school student's physics teaching acceleration test inclined plane demonstrating device according to claim 1, feature exist In: the fixed device (14) includes threaded rod (141), and the bottom end of the threaded rod (141) and the top of sliding shoe (12) are solid Fixed connection, the top of the threaded rod (141) extend to the outside of fixed substrate (1), and the external of the threaded rod (141) is fixed It is set with the rubber sheet gasket (142) being located above fixed substrate (1), the external screw-thread of the threaded rod (141), which is set with, to be located at Hold-doun nut (143) above rubber sheet gasket (142).

4. a kind of high school student's physics teaching acceleration test inclined plane demonstrating device according to claim 1, feature exist In: the through slot to connect with groove (10), and through slot in fixed substrate (1) are offered at the top of the fixed substrate (1) Shape be rectangle.

5. a kind of high school student's physics teaching acceleration test inclined plane demonstrating device according to claim 1, feature exist In: side position baffle (2) is provided with protective plate close to the side of fixed block (3), and on side position baffle (2) and the material of protective plate Matter is rubber.

6. a kind of high school student's physics teaching acceleration test inclined plane demonstrating device according to claim 1, feature exist In: the size of the sliding shoe (12) is adapted with the size of groove (10), and sliding shoe (12) outwardly and inwardly respectively with The side wall of groove (10) is connected with the slide outside of connecting rod (11).