CN217718886U

CN217718886U - Junior middle school physics teaching buoyancy presentation device

Info

Publication number: CN217718886U
Application number: CN202221758557.8U
Authority: CN
Inventors: 姜承志
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-11-01
Anticipated expiration: 2032-07-08

Abstract

The utility model relates to a junior middle school physics teaching aid technical field just discloses a junior middle school physics teaching buoyancy presentation device, comprising a base plate, the bottom fixed mounting of bottom plate has the pillar, the left side fixed mounting on bottom plate top has the water storage tank, the left side fixed mounting of water storage tank has the level gauge, the top fixed mounting of water storage tank has the filling opening. This junior middle school physics teaching buoyancy presentation device, be provided with the electron tensiometer, the stainless steel weight, the test box, the scale, mount and aversion subassembly, hang the stainless steel weight in the below of electron tensiometer, and record numerical value on the electron tensiometer, through aversion subassembly slide mount, until the stainless steel weight gets into the inside of test box completely, the numerical value on the record electron tensiometer this moment, also record the numerical value of the inside liquid level of test box simultaneously, contrast the data of the first test of electron tensiometer and the data of the second test of electron tensiometer, can obtain the size of buoyancy.

Description

Junior middle school physics teaching buoyancy presentation device

Technical Field

The utility model relates to a junior middle school physics teaching aid technical field specifically is a junior middle school physics teaching buoyancy presentation device.

Background

Buoyancy is one of the important contents of middle school physics course, but this part of content is comparatively abstract, and the mr only is difficult to express clearly in the language in the teaching process, and the student also is difficult to understand, consequently need assist the teaching with the help of presentation device, and traditional buoyancy presentation device generally adopts the spring balance to weigh the weight of object, then will hang the object and place in the container that fills with water, collects the water that overflows and weigh to the size of the buoyancy that the calculation object received.

However, current junior middle school physics teaching buoyancy presentation device, the operation is too complicated, and the step of demonstration is too much, can not carry out the audio-visual demonstration of image, and consequently many students understand not thorough to corresponding physics knowledge, and the practicality is relatively poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a buoyancy presentation device for junior high school physics teaching to provide current buoyancy presentation device for junior high school physics teaching in solving above-mentioned background, the operation is too complicated, and the step of demonstration is too much, can not carry out the demonstration of visual directly perceived, and consequently a lot of students understand not thorough to corresponding physical knowledge, the relatively poor problem of practicality.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a buoyancy demonstration device for junior middle school physics teaching comprises a bottom plate, wherein a support column is fixedly mounted at the bottom end of the bottom plate, a water storage tank is fixedly mounted on the left side of the top end of the bottom plate, a liquid level meter is fixedly mounted on the left side of the water storage tank, a liquid filling port is fixedly mounted at the top end of the water storage tank, a controller is fixedly mounted on the front side of the water storage tank, a fixing frame is arranged on the upper side of the bottom plate, a shifting component is arranged at the joint of the fixing frame and the bottom plate, a through hole is formed in the fixing frame, a connecting ring is mounted inside the through hole in a hanging manner, an electronic tension meter is mounted below the connecting ring in a hanging manner, a stainless steel weight is mounted below the electronic tension meter in a hanging manner, a placing groove is formed in the right side of the upper end of the bottom plate, a test box is placed inside the placing groove, a first connecting pipe and a second connecting pipe are connected between the water storage tank and a test power supply box in a threaded manner, a first liquid pump is arranged outside the first connecting pipe, a second liquid pump is arranged outside the first liquid pump, a second liquid pump is arranged outside the connecting pipe, and a second liquid pump is arranged at the bottom end of the bottom plate;

the aversion subassembly is including recess, fixing base, guide arm, lower slider and top shoe, the inside at the bottom plate is seted up to the recess, the inside fixed mounting of recess has the fixing base, the outside fixed mounting of fixing base has the guide arm, the outside slidable mounting of guide arm has lower slider and top shoe, the top shoe is fixed connection with lower slider.

Preferably, the guide rod, the lower sliding block and the upper sliding block are arranged in two identical groups, the guide rod, the lower sliding block and the upper sliding block are symmetrically distributed about the central line of the bottom plate, and the fixing frame is of an n-shaped structure, so that the position of the stainless steel weight is conveniently adjusted.

Preferably, the first connecting pipe and the second connecting pipe are the same in specification, the left ends of the first connecting pipe and the second connecting pipe extend into the water storage tank, the right ends of the first connecting pipe and the second connecting pipe extend into the test box, and water in the water storage tank can be conveyed to the temples of the test box.

Preferably, the central lines of the fixing frame, the connecting ring, the electronic tension meter and the stainless steel weight are located on the same vertical line, and the electronic tension meter is located between the connecting ring and the stainless steel weight, so that data of the electronic tension meter can be read conveniently.

Preferably, the stainless steel weight is located the top of test box, the test box adopts the ya keli board material to make, the right side of test box is provided with the scale, conveniently observes the inside liquid level of test box.

Preferably, the electronic tension meter, the first liquid pump and the second liquid pump are electrically connected with the controller, and the electronic tension meter, the first liquid pump and the second liquid pump are electrically connected with the power supply assembly, so that the electronic tension meter, the first liquid pump and the second liquid pump can be controlled to be turned on and turned off.

Compared with the prior art, the utility model provides a junior middle school physics teaching buoyancy presentation device possesses following beneficial effect: this junior middle school physics teaching buoyancy presentation device, be provided with the electron tensiometer, the stainless steel weight, the test box, the scale, mount and aversion subassembly, hang the stainless steel weight in the below of electron tensiometer, and record numerical value on the electron tensiometer, through aversion subassembly slide mount, until the stainless steel weight gets into the inside of test box completely, the numerical value on the record electron tensiometer this moment, also record the numerical value of the inside liquid level of test box simultaneously, contrast the data of the first test of electron tensiometer and the data of the second test of electron tensiometer, can obtain the size of buoyancy.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the present invention;

fig. 3 is a three-dimensional schematic view of the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the bottom plate of the present invention;

FIG. 5 is a schematic view of the mounting structure of the shifting unit and the fixing frame of the present invention;

fig. 6 is a schematic side view of the present invention.

Wherein: 1. a base plate; 2. a pillar; 3. a water storage tank; 4. a liquid level meter; 5. a liquid adding port; 6. a controller; 7. a displacement assembly; 701. a groove; 702. a fixed seat; 703. a guide bar; 704. a lower slider; 705. an upper slide block; 8. a fixed mount; 9. a through hole; 10. a connecting ring; 11. an electronic tension meter; 12. stainless steel weights; 13. a placement groove; 14. a test box; 15. a first connecting pipe; 16. a first liquid pump; 17. a second connecting pipe; 18. a liquid pump II; 19. a power supply component; 20. a graduated scale.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, a buoyancy demonstration device for junior middle school physics teaching, comprising a bottom plate 1, a pillar 2 is fixedly installed at the bottom end of the bottom plate 1, a water storage tank 3 is fixedly installed at the left side of the top end of the bottom plate 1, a liquid level meter 4 is fixedly installed at the left side of the water storage tank 3, a liquid filling port 5 is fixedly installed at the top end of the water storage tank 3, a controller 6 is fixedly installed at the front side of the water storage tank 3, a fixing frame 8 is arranged at the upper side of the bottom plate 1, a displacement assembly 7 is arranged at the joint of the fixing frame 8 and the bottom plate 1, a through hole 9 is formed in the fixing frame 8, a connecting ring 10 is installed inside the through hole 9, an electronic tension meter 11 is installed below the connecting ring 10 in a hanging manner, a stainless steel weight 12 is installed below the electronic tension meter 11, a placing groove 13 is formed at the right side of the upper end of the bottom plate 1, a test box 14 is placed inside the placing groove 13, the fixing frame 8, the connecting ring 10, the electronic tension meter 11 and the stainless steel weight meter 12 are located on the same vertical line, the electronic tension meter 11 is located between the connecting ring 10 and the connecting tube 12, the connecting tube 16 is formed by a first suction pump 14, a buoyancy control device which is connected with a buoyancy control liquid level meter which is connected with a buoyancy control device which is formed by a buoyancy control liquid level meter and a buoyancy control device which is connected with a buoyancy control liquid pump 16 which is connected with a buoyancy control device which is installed in the bottom end of a buoyancy tank 16 and a buoyancy control liquid pump 16 which is connected with the buoyancy control liquid pump 16 which is installed in the buoyancy tank 14 and a buoyancy control device which are connected with the buoyancy tank 14, at the moment, a worker hangs the stainless steel weight 12 below the electronic tension meter 11 and records the numerical value on the electronic tension meter 11, at the moment, the worker slides the fixing frame 8 through the shifting assembly 7 until the stainless steel weight 12 completely enters the test box 14, at the moment, the numerical value on the electronic tension meter 11 is recorded, meanwhile, the numerical value of the liquid level in the test box 14 is also recorded, and the data of the first test of the electronic tension meter 11 and the data of the second test of the electronic tension meter 11 are compared, so that the buoyancy can be obtained;

a first connecting pipe 15 and a second connecting pipe 17 are in threaded connection between the water storage tank 3 and the test tank 14, a first liquid pump 16 is arranged on the outer side of the first connecting pipe 15, a second liquid pump 18 is arranged on the outer side of the second connecting pipe 17, the first connecting pipe 15 and the second connecting pipe 17 are identical in specification, the left ends of the first connecting pipe 15 and the second connecting pipe 17 extend into the water storage tank 3, the right ends of the first connecting pipe 15 and the second connecting pipe 17 extend into the test tank 14, after use, a worker uses the controller 6 to start the second liquid pump 18, and the second liquid pump 18 pumps liquid in the test tank 14 back into the bottom plate 1 through the second connecting pipe 17 and can be used repeatedly;

the shifting assembly 7 comprises a groove 701, a fixed seat 702, a guide rod 703, a lower slider 704 and an upper slider 705, the groove 701 is arranged inside the bottom plate 1, the fixed seat 702 is fixedly arranged inside the groove 701, the guide rod 703 is fixedly arranged outside the fixed seat 702, the lower slider 704 and the upper slider 705 are slidably arranged outside the guide rod 703, the upper slider 705 is fixedly connected with the lower slider 704, the guide rod 703, the lower slider 704 and the upper slider 705 are provided with two identical groups, the guide rod 703, the lower slider 704 and the upper slider 705 are symmetrically distributed about the center line of the bottom plate 1, the fixing frame 8 is in an n-shaped structure, the guide rod 703 can guide the lower slider 704 in the process of moving the fixing frame 8, and meanwhile, the fixing frame 8 can slide on the guide rod 703 through the lower slider 704 and the upper slider 705, so that the position of the stainless steel weight 12 can be adjusted.

When the device is used, a worker uses the controller 6 to start the first liquid pumping pump 16, the first liquid pumping pump 16 conveys water in the water storage tank 3 to the inside of the test box 14 through the first connecting pipe 15, the liquid level in the test box 14 can be observed through the graduated scale 20 on the outer side of the test box 14, the worker hangs the stainless steel weight 12 below the electronic tension meter 11 at the moment, the numerical value on the electronic tension meter 11 is recorded, the fixed frame 8 slides through the shifting assembly 7 until the stainless steel weight 12 completely enters the inside of the test box 14, the numerical value on the electronic tension meter 11 is recorded at the moment, the numerical value of the liquid level in the test box 14 is also recorded at the same time, the data tested by the electronic tension meter 11 for the first time and the data tested by the electronic tension meter 11 for the second time are compared, the size of the buoyancy can be obtained, the operation is simple, the buoyancy of an object can be visually displayed on the data, after the device is used, the worker uses the controller 6 to start the second liquid pumping pump 18, the second liquid pumping pump 18 pumps the liquid in the test box 14 to the inside of the bottom plate 1 through the second connecting pipe 17, meanwhile, the sliding block 8 can slide block 704 on the fixed frame 703 and the stainless steel guide rod 703 can be adjusted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a junior middle school physics teaching buoyancy presentation device, includes bottom plate (1), its characterized in that: the bottom fixed mounting of bottom plate (1) has pillar (2), the left side fixed mounting on bottom plate (1) top has water storage tank (3), the left side fixed mounting of water storage tank (3) has level gauge (4), the top fixed mounting of water storage tank (3) has filling opening (5), the front side fixed mounting of water storage tank (3) has controller (6), the upside of bottom plate (1) is provided with mount (8), the junction of mount (8) and bottom plate (1) is provided with aversion subassembly (7), through hole (9) have been seted up to the inside of mount (8), the inside suspended mounting of through hole (9) has go-between (10), the below suspended mounting of go-between (10) has electronic tension meter (11), the below suspended mounting of electronic tension meter (11) has stainless steel weight (12), standing groove (13) have been seted up on the right side of bottom plate (1) upper end, test box (14) have been placed to the inside of standing groove (13), threaded connection has one (15) and two connecting pipes (17) between water storage tank (3) and test box (14), the drawing liquid pump outside is provided with two connecting pipes (17), a power supply assembly (19) is fixedly arranged at the bottom end of the bottom plate (1);

aversion subassembly (7) are including recess (701), fixing base (702), guide arm (703), lower slider (704) and top shoe (705), the inside at bottom plate (1) is seted up in recess (701), the inside fixed mounting of recess (701) has fixing base (702), the outside fixed mounting of fixing base (702) has guide arm (703), the outside slidable mounting of guide arm (703) has lower slider (704) and top shoe (705), top shoe (705) are fixed connection with lower slider (704).

2. The buoyancy demonstration device for physics teaching in junior middle school according to claim 1, wherein: the guide rod (703), the lower sliding block (704) and the upper sliding block (705) are provided with two identical groups, the guide rod (703), the lower sliding block (704) and the upper sliding block (705) are symmetrically distributed around the central line of the bottom plate (1), and the fixing frame (8) is of an n-shaped structure.

3. The buoyancy demonstration device for physical teaching in junior middle school according to claim 2, wherein: the specification of connecting pipe one (15) and connecting pipe two (17) is the same, the left end of connecting pipe one (15) and connecting pipe two (17) all extends to the inside of holding water tank (3), the right-hand member of connecting pipe one (15) and connecting pipe two (17) all extends to the inside of test box (14).

4. The buoyancy demonstration device for physics teaching in junior middle school according to claim 3, wherein: the central lines of the fixing frame (8), the connecting ring (10), the electronic tension meter (11) and the stainless steel weight (12) are located on the same vertical line, and the electronic tension meter (11) is located between the connecting ring (10) and the stainless steel weight (12).

5. The buoyancy demonstration device for physics teaching in junior middle school according to claim 4, wherein: stainless steel weight (12) are located the top of test box (14), test box (14) adopt the ya keli board material to make, the right side of test box (14) is provided with scale (20).

6. The buoyancy demonstration device for physical teaching in junior middle school according to claim 5, wherein: the electronic tension meter (11), the first liquid pump (16) and the second liquid pump (18) are electrically connected with the controller (6), and the electronic tension meter (11), the first liquid pump (16) and the second liquid pump (18) are electrically connected with the power supply assembly (19).