CN211124621U

CN211124621U - Buoyancy demonstration device for junior middle school physics teaching

Info

Publication number: CN211124621U
Application number: CN201921890406.6U
Authority: CN
Inventors: 滕与晨; 刘羽
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-07-28
Anticipated expiration: 2029-11-05

Abstract

The utility model discloses a junior high school physics teaching buoyancy presentation device, comprises a box bod, the installation cover, the mounting hole, the floating block, feed liquor mechanism, drainage mechanism, control mechanism, this junior high school physics teaching buoyancy presentation device, can fill or manage to find time the processing with floating block inside, let solid floating block or hollow floating block sink or the demonstration teaching of come-up in the box body that is equipped with liquid with this, from this can know, through using the device in this application, not only can improve the interest of the teaching in teacher's buoyancy knowledge demonstration, with this interest in learning of arousing the student easily, still very big improvement the student to the understanding of buoyancy knowledge more thorough knowledge, the degree that the student understood buoyancy has been improved promptly.

Description

Buoyancy demonstration device for junior middle school physics teaching

Technical Field

The utility model relates to a presentation device especially relates to junior middle school physics teaching buoyancy presentation device.

Background

In order to facilitate operation and observation, students can observe that objects are not always influenced by buoyancy in liquid, and the objects can be influenced by the upward buoyancy in the liquid only when the upward pressure of the objects in the liquid is greater than the downward pressure; the phenomenon of the object floating can explain the principle of buoyancy generation, but under the condition of not demonstrating the buoyancy phenomenon, students cannot understand the buoyancy intuitively, and in view of the defects, a buoyancy demonstrating device for junior middle school physics teaching is actually needed to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in: the buoyancy demonstration device for junior middle school physics teaching is provided to solve the problems provided by the background technology.

In order to solve the technical problem, the technical scheme of the utility model is that: junior middle school physics teaching buoyancy presentation device, including box body, installation cover, mounting hole, floating block, feed liquor mechanism, drainage mechanism, control mechanism, the box body middle part inner end firmly be equipped with the installation cover, the inside upper end left and right sides an organic whole of installation cover be equipped with the mounting hole, the inside slip of installation cover be equipped with the floating block, the inside top right side of box body the feed liquor mechanism has set firmly, box body top left side the drainage mechanism has set firmly, box body outer wall right side the control mechanism has set firmly.

Further, the liquid inlet mechanism consists of a funnel and an identification ring.

Further, the funnel has been set firmly on the inside top right side of box body, the fixed cover in box body outside upper end be equipped with the sign ring.

Furthermore, the liquid discharge mechanism consists of a dual-purpose pump, a Y-shaped pipe, a hose and a connecting pipe.

Furthermore, the left side of the top of the box body is fixedly provided with a dual-purpose pump, the left side of the dual-purpose pump is fixedly provided with a Y-shaped pipe, and the other two ends of the Y-shaped pipe are respectively and fixedly penetrated through the upper end and the lower end of the left side of the box body.

Further, the dual-purpose pump right side the hose has set firmly, the inside slip of box body be equipped with the connecting pipe, the connecting pipe fixed run through in the kicking block, the fixed cover of connecting pipe locate the hose.

Furthermore, the control mechanism is composed of a first switch, a second switch, a first electromagnetic valve, a second electromagnetic valve and a lithium battery.

Further, box body outer wall left side set firmly first switch, box body outer wall left side set firmly the second switch.

Further, Y type pipe outer wall upper end set firmly first solenoid valve, Y type pipe outer wall lower extreme set firmly the second solenoid valve, the inside bottom tight fit of box body be equipped with the lithium cell.

Compared with the prior art, this junior middle school physics teaching buoyancy presentation device can fill or evacuate the processing with floating block inside to this lets solid floating block or hollow floating block sink or the demonstration teaching of come-up in the box body that is equipped with liquid, can know from this, through using the device in this application, can improve the interest in the teaching demonstration, arouses student's interest in learning easily, lets the student more thorough and more thorough to the understanding of buoyancy knowledge.

Drawings

FIG. 1 is a partial front sectional view of a junior middle school physics teaching buoyancy demonstration apparatus;

FIG. 2 is an enlarged partial cross-sectional view of the interior of the mounting sleeve;

FIG. 3 is a partial front view of a buoyancy demonstrating device for physical education in junior middle schools;

fig. 4 is a circuit diagram of a buoyancy demonstration device for physical teaching in junior middle schools.

The device comprises a box body 1, an installation sleeve 2, an installation hole 3, a floating block 4, a liquid inlet mechanism 5, a liquid discharge mechanism 6, a control mechanism 7, a funnel 8, an identification ring 9, a dual-purpose pump 10, a Y-shaped pipe 11, a hose 12, a connecting pipe 13, a first switch 14, a second switch 15, a first electromagnetic valve 16, a second electromagnetic valve 17 and a lithium battery 18.

The following detailed description will be further described in conjunction with the above-identified drawings.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments. It will be apparent, however, to one skilled in the art, that the described embodiments may be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail.

Example 1

As shown in fig. 1, junior middle school physics teaching buoyancy presentation device, including box body 1, installation cover 2, mounting hole 3, floating block 4, feed liquor mechanism 5, drainage mechanism 6,

control mechanism

7, 1 inside middle-end of box body set firmly

installation cover

2, 2 inside upper end left and right sides an organic whole of installation cover be equipped with

mounting hole

3, 2 inside slides of installation cover be equipped with

floating block

4, 1 inside top right side of box body set firmly

feed liquor mechanism

5, 1 top left side of box body set firmly drainage mechanism 6, 1 outer wall right side of box body set firmly control mechanism 7.

This junior middle school physics teaching buoyancy presentation device, the teacher pours the clear water into box body 1 by inlet means 5 earlier, again through the use to control mechanism 7, make drainage mechanism 6 pour into the clear water in the box body 1 in the floating block 4 or drainage mechanism 6 inhales the clear water in the floating block 4 in the box body 1, with this to fill or manage to find time the processing inside the floating block 4, and then let floating block 4 sink or come up at the device, through the above-mentioned demonstration step, make the student carry out deep understanding to buoyancy knowledge.

Example 2

As shown in fig. 1, 2 and 3, the buoyancy demonstration device for junior middle school physics teaching comprises a box body 1, an installation sleeve 2, an installation hole 3, a floating block 4, a liquid feeding mechanism 5, a liquid discharging mechanism 6 and a control mechanism 7, wherein the installation sleeve 2 is fixedly arranged at the middle end inside the box body 1, the installation hole 3 is integrally formed in the left side and the right side of the upper end inside the installation sleeve 2, the floating block 4 is slidably arranged inside the installation sleeve 2, the liquid feeding mechanism 5 is fixedly arranged on the right side of the top inside the box body 1, the liquid discharging mechanism 6 is fixedly arranged on the left side of the top of the box body 1, the control mechanism 7 is fixedly arranged on the right side of the outer wall of the box body 1, the liquid feeding mechanism 5 consists of a funnel 8 and an identification ring 9, the funnel 8 is fixedly arranged on the right side of the top inside the box body 1, the identification ring 9 is fixedly arranged on the upper end outside, The device comprises a hose 12 and a connecting pipe 13, wherein a dual-purpose pump 10 is fixedly arranged on the left side of the top of a box body 1, a Y-shaped pipe 11 is fixedly arranged on the left side of the dual-purpose pump 10, the other two ends of the Y-shaped pipe 11 are respectively and fixedly penetrated through the upper end and the lower end of the left side of the box body 1, the hose 12 is fixedly arranged on the right side of the dual-purpose pump 10, the connecting pipe 13 is slidably arranged in the box body 1, the connecting pipe 13 is fixedly penetrated through a floating block 4, the connecting pipe 13 is fixedly sleeved on the hose 12, a control mechanism 7 comprises a first switch 14, a second switch 15, a first electromagnetic valve 16, a second electromagnetic valve 17 and a lithium battery 18, the first switch 14 is fixedly arranged on the left side of the outer wall of the box body 1, the second switch 15 is fixedly arranged on the left side of the outer wall of the box body 1, the first electromagnetic valve 16 is fixedly arranged, the bottom end in the box body 1 is tightly matched with a lithium battery 18.

The buoyancy demonstration device for junior middle school physics teaching is characterized in that a teacher firstly pours clean water into a box body 1 from a funnel 8, when the liquid level in the box body 1 reaches an identification ring 9, the teacher stops pouring the clean water, at the moment, the clean water in the box body 1 flows into an installation sleeve 2 from an installation hole 3, at the moment, the clean water is filled in a floating block 4, namely the gravity of the solid floating block 4 is greater than the buoyancy of the clean water in the installation sleeve 2, namely the solid floating block 4 sinks at the bottom of the installation sleeve 2, the teacher can open a first switch 14 so as to start the suction function of a first electromagnetic valve 16 and a dual-purpose pump 10, the dual-purpose pump 10 discharges the clean water in the floating block 4 into the box body 1 from a hose 12 through a Y-shaped pipe 11, namely the interior of the floating block 4 is evacuated, at the moment, the gravity of the hollow floating block 4 is less than the buoyancy of the clean water in the installation sleeve 2, namely the hollow floating block 4, together with, be about to hollow floating block 4 and float on the surface of water of clear water in the installation cover 2, box body 1 and installation cover 2 be transparent material, through above-mentioned demonstration mode, let the clear principle knowledge of observing buoyancy of student, according to the in-service use condition, the teacher can open second switch 15 with the hand, with this injection function who opens second solenoid valve 17 and dual-purpose pump 10, dual-purpose pump 10 is injected into floating block 4 by Y type pipe 11 in the box body 1 through hose 12 in with this to floating block 4 is inside to be filled and is handled, is greater than the buoyancy of the inside clear water of installation cover 2 with the gravity of floating block 4 promptly, with this sink to installation cover 2 bottom solid floating block 4, connecting pipe 13 be hard material.

As shown in FIG. 4, the lithium battery 18 is used for supplying energy to the device, the lithium battery 18 is connected with the dual-purpose pump 10, the first switch 14, the second switch 15, the first solenoid valve 16 and the second solenoid valve 17 through wires, and the dual-purpose pump 10 is preferably Z512-7503-3000.

Claims

1. Junior middle school physics teaching buoyancy presentation device, its characterized in that includes box body, installation cover, mounting hole, floating block, feed liquor mechanism, drainage mechanism, control mechanism, the box body middle part inner end admittedly be equipped with the installation cover, the inside upper end left and right sides an organic whole of installation cover be equipped with the mounting hole, the inside slip of installation cover be equipped with the floating block, the inside top right side of box body the feed liquor mechanism has set firmly, box body top left side the drainage mechanism has set firmly, box body outer wall right side control mechanism has set firmly.

2. The buoyancy demonstration device for junior middle school physics teaching according to claim 1, wherein said liquid feeding mechanism is composed of a funnel and an identification ring.

3. The buoyancy demonstration device for physics teaching in junior middle school according to claim 2, wherein a funnel is fixedly arranged on the right side of the top end inside the box body, and an identification ring is fixedly sleeved on the upper end outside the box body.

4. The buoyancy demonstration device for junior middle school physics teaching according to claim 1, wherein the drainage mechanism comprises a dual-purpose pump, a Y-shaped pipe, a hose and a connecting pipe.

5. The buoyancy demonstration device for junior middle school physics teaching according to claim 4, characterized in that a dual-purpose pump is fixedly arranged on the left side of the top of the box body, a Y-shaped pipe is fixedly arranged on the left side of the dual-purpose pump, and the other two ends of the Y-shaped pipe are respectively and fixedly penetrated through the upper end and the lower end of the left side of the box body.

6. The buoyancy demonstration device for physics teaching in junior middle school according to claim 5, wherein a hose is fixedly arranged on the right side of the dual-purpose pump, a connecting pipe is slidably arranged in the box body, the connecting pipe is fixedly penetrated through the floating block, and the connecting pipe is fixedly sleeved on the hose.

7. The buoyancy demonstration device for junior middle school physics teaching according to claim 1, wherein said control mechanism is composed of a first switch, a second switch, a first solenoid valve, a second solenoid valve and a lithium battery.

8. The buoyancy demonstration device for physics teaching in junior middle school according to claim 6, wherein the first switch is fixedly arranged on the left side of the outer wall of the box body, and the second switch is fixedly arranged on the left side of the outer wall of the box body.

9. The buoyancy demonstration device for junior middle school physics teaching according to claim 5, characterized in that a first electromagnetic valve is fixedly arranged at the upper end of the outer wall of the Y-shaped tube, a second electromagnetic valve is fixedly arranged at the lower end of the outer wall of the Y-shaped tube, and a lithium battery is tightly matched with the bottom end in the box body.