CN206471021U

CN206471021U - A kind of Physical Experiment case

Info

Publication number: CN206471021U
Application number: CN201720119703.5U
Authority: CN
Inventors: 户立春
Original assignee: Tangshan University
Current assignee: Tangshan University
Priority date: 2017-02-09
Filing date: 2017-02-09
Publication date: 2017-09-05
Anticipated expiration: 2027-02-09

Abstract

The utility model discloses a kind of Physical Experiment case of Physical Experiment equipment technical field, including transparent cabinet, the intracavity bottom left and right sides of the transparent cabinet is equipped with pulling force sensor, the top load cell end of pulling force sensor described in two groups is equipped with plastics fine rule, described in two groups the string bag is equipped with the top of plastics fine rule, different size of ball float is held by the string bag, under the pining down of identical plastics fine rule, observe the pulling force measured by pulling force sensor, simultaneously by changing height of water level or class of liquids in transparent cabinet, student can be allowed to understand buoyancy of the object in water relevant with those factors, utilize three groups of sliding blocks from left to right fixed mask plate successively, lens and candle, the distance between three is changed by sliding block, it can be used for studying lens image formation rule, the apparatus structure is simple, it is easy to use, three kinds of physics laws can be understood with student, it is practical.

Description

A kind of Physical Experiment case

Technical field

The utility model is related to Physical Experiment equipment technical field, specially a kind of Physical Experiment case.

Background technology

In physics teaching, the buoyancy size of object in a liquid is relevant with which factor, whether sound is propagated in a vacuum Be key content with lens image formation rule, be also difficult point content, student do not allow it is readily understood, in existing experimental box, it is impossible to straight See allow student to understand object buoyancy size is relevant with which factor in a liquid, whether sound is propagated in a vacuum and lens into As rule, the study schedule of this influence student and to mastery of knowledge, therefore, I proposes a kind of Physical Experiment case.

Utility model content

The purpose of this utility model is to provide a kind of Physical Experiment case, existing with solve to propose in above-mentioned background technology Experimental box can not intuitively allow student to understand object, and buoyancy size is relevant with which factor in a liquid, sound in a vacuum whether The problem of propagation and lens image formation rule.

To achieve the above object, the utility model provides following technical scheme：A kind of Physical Experiment case, including glass box Body, the intracavity bottom left and right sides of the transparent cabinet is equipped with pulling force sensor, and the top of pulling force sensor described in two groups is surveyed Power end is equipped with plastics fine rule, is equipped with the string bag, the top of the transparent cabinet left and right sides described in two groups at the top of plastics fine rule Portion is equipped with connection clip and handle, and connection clip is located between the top of handle, connection clip described in two groups provided with case lid, and case lid Bottom and transparent cabinet top clamping, sealing ring, the case are provided between case lid at the top of the outer wall of the transparent cabinet The surface crown of lid is provided with chute and graduated scale, and chute is located at the top of graduated scale, and the inner chamber of the chute is plugged with three groups Sliding block, the center of the case lid surface left and right sides is equipped with the right side of the groove matched with connection clip, the surface of the case lid Bottom is plugged with soft rubber tube, and the right side of the soft rubber tube is provided with mounting flange.

It is preferred that, the string bag includes EP rubbers mesh grid, and the surface of the EP rubbers mesh grid is anti-provided with water repellent The top left and right sides of oily Nomex, the EP rubbers mesh grid and the grease proofing Nomex of water repellent is provided with four-part button.

It is preferred that, the left bottom of the transparent cabinet is provided with disposable box.

It is preferred that, the sealing ring is thermoplasticity EPT rubber packing circle.

Compared with prior art, the beneficial effects of the utility model are：EP rubbers is avoided using the grease proofing Nomex of water repellent Mesh grid is contacted with water, reduces resistance, improves experimental precision, is provided with disposable box by the left bottom of transparent cabinet, is conveniently deposited Candle, lens and the screen board of research lens image formation rule are put, sealing ring is thermoplasticity EPT rubber packing circle, and it has The characteristics of antiseepage, leakproof and good water-stagnating effect, while again corrosion-resistant, ageing-resistant and service life is long, good airproof performance, by saturating A jingle bell is placed in camera-lucida body, case lid is fixed using connection clip, is connected by mounting flange with aspirator vacuum pump, taken out During gas, the sound size of jingle bell is observed, student can be allowed to understand whether sound can be propagated in a vacuum, contained by the string bag Different size of ball float is put, under the pining down of identical plastics fine rule, the pulling force measured by observation pulling force sensor passes through simultaneously Change the height of water level or class of liquids in transparent cabinet, student can be allowed to understand buoyancy of the object in water to be had with those factors Close, using three groups of sliding blocks from left to right fixed mask plate, lens and candle successively, the distance between three changed by sliding block, It can be used for studying lens image formation rule, the apparatus structure is simple, easy to use, three kinds of physics laws can be understood with student, it is real It is strong with property.

Brief description of the drawings

Fig. 1 is the utility model structural representation；

Fig. 2 is the utility model cover structure schematic diagram；

Fig. 3 is the utility model string bag structure schematic diagram.

In figure：1 transparent cabinet, 2 pulling force sensors, 3 plastics fine rules, 4 string bags, 400 EP rubbers mesh grids, 401 water repellents Grease proofing Nomex, 402 four-part buttons, 5 handles, 6 connection clips, 7 sealing rings, 8 case lids, 9 sliding blocks, 10 soft rubber tubes, 11 adpting flanges Disk, 12 chutes, 13 graduated scales, 14 grooves.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.

Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of Physical Experiment case, including transparent cabinet 1, The intracavity bottom left and right sides of the transparent cabinet 1 is equipped with pulling force sensor 2, and the top of pulling force sensor 2 described in two groups is surveyed Power end is equipped with plastics fine rule 3, and the top of plastics fine rule 3 described in two groups is equipped with the string bag 4, the left and right sides of transparent cabinet 1 Top be equipped with connection clip 6 and handle 5, and connection clip 6 is located between the top of handle 5, connection clip 6 described in two groups and is provided with case It is provided with the top of lid 8, and bottom and the top clamping of transparent cabinet 1 of case lid 8, the outer wall of the transparent cabinet 1 between case lid 8 Sealing ring 7, the surface crown of the case lid 8 is provided with chute 12 and graduated scale 13, and chute 12 is located at the top of graduated scale 13, institute The inner chamber for stating chute 12 is plugged with three groups of sliding blocks 9, and the center of the surface left and right sides of case lid 8 is equipped with and the phase of connection clip 6 The groove 14 matched somebody with somebody, the surface bottom right side of the case lid 8 is plugged with soft rubber tube 10, and the right side of the soft rubber tube 10 is provided with company Acting flange disk 11.

Wherein, the string bag 4 includes EP rubbers mesh grid 400, and the surface of the EP rubbers mesh grid 400, which is provided with, refuses The top left and right sides of the grease proofing Nomex 401 of water, the EP rubbers mesh grid 400 and the grease proofing Nomex 401 of water repellent is provided with four Button 402 is closed, avoids EP rubbers mesh grid 400 from being contacted with water using the grease proofing Nomex 401 of water repellent, resistance is reduced, experiment is improved Precision, the left bottom of the transparent cabinet 1 is provided with disposable box, the candle of convenient storage research lens image formation rule, lens and Screen board, the sealing ring 7 is thermoplasticity EPT rubber packing circle, and it has antiseepage, leakproof and the good spy of water-stagnating effect Point, while again corrosion-resistant, ageing-resistant and service life is long, good airproof performance.

Operation principle：A jingle bell is placed in transparent cabinet 1, case lid 8 is fixed using connection clip 6, passes through connection method Blue disk 11 is connected with aspirator vacuum pump, during pumping, observes the sound size of jingle bell, and student can be allowed, which to understand sound, is It is no to propagate in a vacuum, different size of ball float is held by the string bag 4, under the pining down of identical plastics fine rule 3, observation is drawn Pulling force measured by force snesor 2, while by changing height of water level or class of liquids in transparent cabinet 1, can allow student Understand buoyancy of the object in water relevant with those factors, using three groups of sliding blocks 9 from left to right successively fixed mask plate, lens and Candle, the distance between three is changed by sliding block 9, can be used for studying lens image formation rule, the apparatus structure is simple, uses It is convenient, three kinds of physics laws can be understood with student, it is practical.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of Physical Experiment case, including transparent cabinet (1), it is characterised in that：Intracavity bottom of the transparent cabinet (1) or so Both sides are equipped with pulling force sensor (2), and the top load cell end of pulling force sensor (2) is equipped with plastics fine rule (3), two described in two groups It is equipped with the top of the group plastics fine rule (3) at the top of the string bag (4), transparent cabinet (1) left and right sides and is equipped with connection (6) and handle (5) are pressed from both sides, and connection clip (6) is located at provided with case lid (8) between the top of handle (5), connection clip (6) described in two groups, And the bottom of case lid (8) and the top clamping of transparent cabinet (1), between the outer wall top of the transparent cabinet (1) and case lid (8) Provided with sealing ring (7), the surface crown of the case lid (8) is provided with chute (12) and graduated scale (13), and chute (12) is located at quarter The top of chi (13) is spent, the inner chamber of the chute (12) is plugged with three groups of sliding blocks (9), case lid (8) the surface left and right sides Center is equipped with the groove (14) matched with connection clip (6), and the surface bottom right side of the case lid (8) is plugged with soft rubber tube (10), the right side of the soft rubber tube (10) is provided with mounting flange (11).

2. a kind of Physical Experiment case according to claim 1, it is characterised in that：The string bag (4) is compiled including EP rubbers Knitmesh (400), the surface of the EP rubbers mesh grid (400) is provided with the grease proofing Nomex of water repellent (401), and the EP rubbers is compiled The top left and right sides of knitmesh (400) and the grease proofing Nomex of water repellent (401) is provided with four-part button (402).

3. a kind of Physical Experiment case according to claim 1, it is characterised in that：The left bottom of the transparent cabinet (1) Provided with disposable box.

4. a kind of Physical Experiment case according to claim 1, it is characterised in that：The sealing ring (7) is thermoplasticity ternary EP rubbers sealing ring.