CN211669843U

CN211669843U - High school buoyancy experiment auxiliary device

Info

Publication number: CN211669843U
Application number: CN202020270699.4U
Authority: CN
Inventors: 王健坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-08
Filing date: 2020-03-08
Publication date: 2020-10-13
Anticipated expiration: 2030-03-08

Abstract

The utility model relates to a teaching aid field especially relates to a buoyancy experiment auxiliary device in high school, and the device can demonstrate same object and in the showy degree that can not the medium, does benefit to the student and understands the relevant knowledge of buoyancy, effectively solves the problem that proposes in the background art. The test tube rack comprises a base, wherein a vertical supporting rod is fixedly arranged on the upper surface of the base, the top of the supporting rod is fixedly connected with the bottom surface of a flat plate, a cross rod is fixedly arranged on the front side surface of the supporting rod, a plurality of first lantern rings are arranged on the left side and the right side of the front side of the cross rod, test tubes with upper openings are fixedly inserted and fixed in the first lantern rings, and floating blocks capable of sliding up and down are arranged in the; the outer surface of the test tube is sleeved with a marking assembly capable of sliding up and down; a writing board is fixedly arranged between the flat plate at the rear side of the supporting rod and the base, and a movable projection mechanism is arranged on the base at the front side of the supporting rod. The multifunctional teaching and scientific research institution is simple to operate, convenient to use and suitable for various teaching and scientific research institutions.

Description

High school buoyancy experiment auxiliary device

Technical Field

The utility model relates to a high school's experimental apparatus field specifically is a buoyancy of high school tests auxiliary device.

Background

With the progress of science and technology and the development of society, the teaching conditions of China are greatly improved, and the rapid development of experimental tools is followed. The physical experiment not only can help students to understand theoretical knowledge, but also can exercise the practical ability of the students. In high school physics, the knowledge about buoyancy can be learned. The same object floats differently in different media. At present, no experimental tool for visually observing the floating degree of the same object in different media is available, and understanding of students on the knowledge related to buoyancy is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a buoyancy experiment auxiliary device in high school, the device can demonstrate the showy degree of same object at different media, do benefit to the student and understand the relevant knowledge of buoyancy, effectively solve the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a buoyancy experiment auxiliary device in high school which characterized in that: the test tube lifting device comprises a base, wherein a vertical supporting rod is fixedly arranged on the rear side of the central position of the upper surface of the base, the top of the supporting rod is fixedly connected with the bottom surface of a flat plate, a cross rod is fixedly arranged on the front side of the upper side of the middle position of the supporting rod, a plurality of first lantern rings are arranged on the front side of the cross rod in a left-right mode, test tubes with upper openings are fixedly inserted and fixed in the first lantern rings, the first lantern rings are fixed on the outer edges of the upper openings of the test tubes, floating blocks capable of sliding up and down are arranged in the test tubes, lifting lugs are fixedly arranged on the upper surfaces of the floating blocks, the lifting lugs are fixedly connected with the bottom of a tying rope, the top of the; the outer surface of the test tube is sleeved with a marking assembly capable of sliding up and down; a writing board is fixedly arranged between the flat plate at the rear side of the supporting rod and the base, and a movable projection mechanism is arranged on the base at the front side of the supporting rod.

Preferably, the marking assembly comprises a second sleeve ring which is sleeved on the outer surface of the test tube in a sliding manner, a first rubber bolt is screwed inwards on the left side of the second sleeve ring, and a transverse support rod is fixedly arranged on the outer surface of the right side of the second sleeve ring.

Preferably, the writing board is a white board or a blackboard.

Preferably, the projection mechanism comprises an anvil block which is separately arranged on the base, a vertical support rod is fixedly arranged in the middle of the upper surface of the anvil block, and a flashlight fixing mechanism can be arranged on the support rod in a vertically sliding manner.

Preferably, flashlight fixed establishment include that the third lantern ring on the vaulting pole is arranged in to the slip cap, affiliated third lantern ring left side is to the internal screw thread to have the second rubber bolt, third lantern ring right flank be equipped with the fixed block, the fixed fourth lantern ring that is equipped with inside and outside open-ended in fixed block right side, fourth lantern ring upside from top to bottom run through to screw thread to have the third rubber bolt.

Preferably, the bottom of the front side surface of the test tube is respectively bonded with a transparent box body with an upper opening.

Preferably, the tether is made of nylon material.

Preferably, the bottom surface of the base is provided with a rubber pad.

Preferably, a rubber pad is adhered to the bottom surface of the anvil block.

Preferably, the cross section of the stay bar is of a square structure, and the third lantern ring is of a square structure.

Compared with the prior art, the utility model provides a buoyancy experiment auxiliary device in high school possesses following beneficial effect:

1. the utility model is characterized in that a floating block capable of sliding up and down is arranged in the test tube, a lifting lug is fixedly arranged on the upper surface of the floating block, the lifting lug is fixedly connected with the bottom of a tether, the top of the tether is fixedly connected with a lifting ring, and the lifting ring is fixed on the bottom surface of a cross rod; the outer surface of the test tube is sleeved with a marking assembly capable of sliding up and down; when the portable liquid level meter is used, liquid with different densities can be poured into three test tubes, a support rod of the marking assembly is placed in a liquid level position and is positioned through a first rubber bolt, then the projection mechanism is placed in the front side of the test tube at a middle position, then a flashlight is adjusted to be horizontal to the middle support rod and is then irradiated backwards to be opened, an initial position is marked on the writing board at the rear side, then the floating block is slowly placed into the test tube through a tether, after the liquid level is stabilized, the marking assembly is moved upwards to enable the support rod to be flush with the new liquid level, then the flashlight is positioned through the first rubber bolt, the flashlight fixing mechanism is moved upwards to enable the flashlight to be flush with the support rod again, the flashlight is opened, and a secondary position is recorded on the writing board again, the floating degree of the floating block in different liquids is observed, thereby being beneficial to students to understand the knowledge about the buoyancy.

2. The utility model discloses a flashlight fixed establishment includes that the slip cap arranges the third lantern ring on the vaulting pole in, and affiliated third lantern ring left side is to the internal rotation and has been twisted second rubber bolt, third lantern ring right flank be equipped with the fixed block, the fixed fourth lantern ring that is equipped with inside and outside open-ended in fixed block right side, fourth lantern ring upside from top down run through soon to have twisted third rubber bolt, during the use, can arrange the flashlight in the fourth lantern ring backward in, then fix the flashlight through twisting third rubber bolt downwards.

3. The utility model discloses a test tube leading flank bottom bond respectively and have the transparent box body of upper shed, during the use, the label can be planted to the transparent box body for mark the liquid of different density.

Drawings

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

FIG. 2 is a left side view of the structure of FIG. 1;

FIG. 3 is a schematic top view of the projection mechanism of FIG. 1;

fig. 4 is a schematic top view of the second collar shown in fig. 2.

The following are marked in the figure:

1. a base; 11. a strut; 111. a cross bar; 12. a writing board; 2. a flat plate; 21. a hoisting ring; 3. a first collar; 31. a test tube; 32. floating blocks; 321. lifting lugs; 33. a second collar; 331. a first rubber bolt; 332. a support rod; 34. a transparent box body; 4. a tether; 5. an anvil block; 51. a stay bar; 6. a flashlight securing mechanism; 61. a third collar; 62. a second rubber bolt; 63. a fixed block; 64. a fourth collar; 65. and a fourth rubber bolt.

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.

As shown in fig. 1 to 4, an auxiliary device for a high and medium buoyancy experiment comprises a base 1, wherein a vertical support rod 11 is fixedly arranged at the rear side of the central position of the upper surface of the base 1, the top of the supporting rod 11 is fixedly connected with the bottom surface of the flat plate 2, the front side surface of the upper side of the middle position of the supporting rod 11 is fixedly provided with a cross rod 111, a plurality of first lantern rings 3 are arranged at the left and right sides of the front side of the cross rod 111, test tubes 31 with upper openings are fixedly inserted and fixed in the first lantern rings 3, the first collar 3 is fixed on the outer edge of the upper opening of the test tube 31, a floating block 32 (vertical cylinder) which can slide up and down is arranged in the test tube 31, a lifting lug 321 is fixedly arranged on the upper surface of the floating block 32, the lifting lug 321 is fixedly connected with the bottom of the tether 4, the top of the tether 4 is fixedly connected with a hanging ring 21, and the hanging ring 21 is fixed on the bottom surface of the flat plate 2. The outer surface of the test tube 31 is sleeved with a marking assembly which can slide up and down. A writing board 12 is fixedly arranged between the flat plate 1 at the rear side of the supporting rod 11 and the base 1, and a movable projection mechanism is arranged on the base 1 at the front side of the supporting rod 11.

In the above embodiment, specifically, the marking assembly includes a second collar 33 slidably sleeved on the outer surface of the test tube 31, the left side of the second collar 33 is screwed with a first rubber bolt 331, and the right side of the second collar 33 is fixedly provided with a transverse support rod 332.

In the above embodiment, specifically, the writing board 12 is a white board or a blackboard.

In the above embodiment, specifically, the projection mechanism includes an anvil block 5 separately disposed on the base 1, a vertical supporting rod 51 is fixedly disposed at a middle position of an upper surface of the anvil block 5, and a flashlight fixing mechanism 6 is slidably disposed on the supporting rod 51 up and down.

In the above embodiment, specifically, the flashlight fixing mechanism 6 includes a third collar 61 slidably sleeved on the stay bar 51, a second rubber bolt 62 is screwed inwards to the left side of the third collar 61, a fixing block 63 is disposed on the right side surface of the third collar 61, a fourth collar 64 with an inner opening and an outer opening is fixed on the right side of the fixing block 63, and a third rubber bolt 65 is screwed downwards to the upper side of the fourth collar 64. A flashlight (not shown, prior art) is threaded rearwardly into the fourth collar 64 and secured by screwing the third rubber bolt 65 downwardly.

In the above embodiment, specifically, the transparent boxes 34 with upper openings are respectively adhered to the bottoms of the front side surfaces of the test tubes 31.

In the above embodiment, specifically, the tether 4 is made of a nylon material.

In the above embodiment, specifically, the bottom surface of the base 1 is provided with a rubber pad.

In the above embodiment, specifically, a rubber pad is adhered to the bottom surface of the anvil block 5.

In the above embodiment, specifically, the cross section of the stay 51 has a square structure, and the third collar 61 has a square structure. Preventing the third collar 61 from rotating.

The working principle is as follows: the three test tubes 31 are filled with liquids of different densities, and the support rod 332 of the marking assembly is placed at the liquid level, positioned by the first rubber bolt 331, the projection mechanism is then placed in front of the tube 31 in the middle position, the flashlight is then adjusted to be level with the middle rod 332, the illumination is then turned on backwards, the initial position is marked on the writing board 12 at the rear side, then the floating block 32 is slowly put into the test tube 31 through the tether 4, after the liquid level is stabilized, the marking assembly is moved upwards, so that the support rod 332 is flush with the new liquid level, then, the flashlight fixing mechanism 6 is moved upwards by positioning the flashlight fixing mechanism through the first rubber bolt 331, the flashlight is again brought flush with the prop 332, turned on, and the secondary position is again recorded on the tablet 12 to observe the degree of floating of the float block 32 in different liquids, thereby facilitating the student's understanding of the knowledge about buoyancy. Specifically, the flashlight is inserted backwards into the fourth collar 64 and then secured by screwing the third rubber stud 65 down. The transparent box 34 may be provided with an interposed label for marking liquids of different densities.

The components used in the present invention are all common standard components or components known to those skilled in the art, and the structure and principle thereof are well known to those skilled in the art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 buoyancy experiment auxiliary device in high school which characterized in that: the test tube lifting device comprises a base, wherein a vertical supporting rod is fixedly arranged on the rear side of the central position of the upper surface of the base, the top of the supporting rod is fixedly connected with the bottom surface of a flat plate, a cross rod is fixedly arranged on the front side of the upper side of the middle position of the supporting rod, a plurality of first lantern rings are arranged on the front side of the cross rod in a left-right mode, test tubes with upper openings are fixedly inserted and fixed in the first lantern rings, the first lantern rings are fixed on the outer edges of the upper openings of the test tubes, floating blocks capable of sliding up and down are arranged in the test tubes, lifting lugs are fixedly arranged on the upper surfaces of the floating blocks, the lifting lugs are fixedly connected with the bottom of a tying rope, the top of the; the outer surface of the test tube is sleeved with a marking assembly capable of sliding up and down; a writing board is fixedly arranged between the flat plate at the rear side of the supporting rod and the base, and a movable projection mechanism is arranged on the base at the front side of the supporting rod.

2. The high and medium buoyancy experimental auxiliary device according to claim 1, wherein: the marking assembly comprises a second lantern ring which is arranged on the outer surface of the test tube in a sliding sleeve mode, a first rubber bolt is screwed inwards to the left side of the second lantern ring, and a transverse supporting rod is fixedly arranged on the outer surface of the right side of the second lantern ring.

3. The high and medium buoyancy experimental auxiliary device according to claim 1, wherein: the writing board is a white board or a blackboard.

4. The high and medium buoyancy experimental auxiliary device according to claim 1, wherein: the projection mechanism comprises an anvil block which is arranged on the base in a split mode, a vertical support rod is fixedly arranged in the middle of the upper surface of the anvil block, and a flashlight fixing mechanism can be arranged on the support rod in a vertically sliding mode.

5. The high and medium buoyancy experimental auxiliary device according to claim 4, wherein: flashlight fixed establishment include the third lantern ring that the vaulting pole was arranged in to the slip cap, affiliated third lantern ring left side internal rotation has twisted second rubber bolt, third lantern ring right flank be equipped with the fixed block, the fixed fourth lantern ring that is equipped with inside and outside open-ended in fixed block right side, fourth lantern ring upside from top to bottom run through to twist soon and have third rubber bolt.

6. The high and medium buoyancy experimental auxiliary device according to claim 1, wherein: the bottom of the front side surface of the test tube is respectively bonded with a transparent box body with an upper opening.

7. The high and medium buoyancy experimental auxiliary device according to claim 1, wherein: the tether is made of nylon material.

8. The high and medium buoyancy experimental auxiliary device according to claim 1, wherein: the bottom surface of the base is provided with a rubber pad.

9. The high and medium buoyancy experimental auxiliary device according to claim 4, wherein: the bottom surface of the anvil block is bonded with a rubber pad.

10. The high and medium buoyancy experimental auxiliary device according to claim 4, wherein: the cross section of the stay bar is of a square structure, and the third lantern ring is of a square structure.