CN211403808U - Experimental device for be used for buoyancy experiment - Google Patents

Abstract

The utility model discloses an experimental device for buoyancy experiment, including two parallel arrangement's support frame and a plurality of fixed line, the backup pad is connected to the support frame upper end, and the bottom plate is connected to the support frame lower extreme, the inside elevating system who is convenient for the experiment of controlling the object lift that is equipped with of backup pad, the backup pad includes upper plate and hypoplastron, upper plate and hypoplastron pass through bolted connection, and upper plate bottom and hypoplastron upper surface all are equipped with the semicircle orifice of using elevating system of convenient installation, the bottom plate upper surface is equipped with the recess of a plurality of fixed solution groove positions, elevating system includes first elevating part and second elevating part; elevating system is connected to the fixed line upper end, and the dynamometer of test buoyancy size is connected to the fixed line lower extreme, the dynamometer lower extreme is equipped with the couple of convenient fixed object, this an experimental apparatus for buoyancy experiment, simple structure, convenient to use, the practicality is strong.

Description

Experimental device for be used for buoyancy experiment

Technical Field

The utility model relates to an experimental apparatus technical field, in particular to buoyancy experimental apparatus.

Background

The buoyancy phenomenon is the key content of physical courses, and the reason for generating buoyancy by liquid and the factors influencing the buoyancy are difficult points of teaching all the time. The size of the buoyancy is only related to the volume of the liquid discharged by the object and the density of the liquid, and when the density of the liquid is not changed, the larger the volume of the liquid discharged by the object is, the larger the buoyancy is; when the volume of the liquid discharged by the object is unchanged, the higher the density of the liquid is, the larger the buoyancy is; teachers generally give guidance to teaching through experiments when explaining.

Traditional buoyancy experiment teaching aid function is more single when using, and the nature of directly perceived is poor, generally adopts the mode of support frame or hand to lead to the object in the solution, and these two kinds of modes lead to the height of the control object of not being convenient for to be not convenient for guarantee the dynamometer whether be in the vertical state, thereby influence the measurement of object buoyancy.

In view of the above, an experimental apparatus for buoyancy experiments is now designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an experimental apparatus for be used for buoyancy to experiment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an experimental device for buoyancy experiments comprises two parallel supporting frames and a plurality of fixing lines, wherein the upper ends of the supporting frames are connected with a supporting plate, the lower ends of the supporting frames are connected with a bottom plate, a lifting mechanism for controlling the lifting of an object to facilitate experiments is arranged in the supporting plate, the supporting plate comprises an upper plate and a lower plate, the upper plate and the lower plate are connected through bolts, semicircular holes for facilitating the installation and use of the lifting mechanism are formed in the upper surfaces of the bottom of the upper plate and the lower plate, a plurality of grooves for fixing the positions of solution grooves are formed in the upper surface of the bottom plate, and the lifting mechanism comprises a first lifting part and a second lifting part;

elevating system is connected to the fixed line upper end, and the dynamometer of test buoyancy size is connected to the fixed line lower extreme, the dynamometer lower extreme is equipped with the couple of convenient fixed object.

Preferably, first lifting unit includes first turning rod, be equipped with two first take-up pulley on the first turning rod, first turning rod is installed between two parallel arrangement's first limiting plate, and first limiting plate is passed to the one end that first turning rod is close to the semicircle orifice and is connected with first rocker.

Preferably, the second lifting component comprises a second rotating rod, a second take-up pulley is arranged on the second rotating rod, the second rotating rod is installed between two second limiting plates which are arranged in parallel, and one end, close to the semicircular hole, of the second rotating rod penetrates through the second limiting plate and is connected with a second rocker.

Preferably, a plurality of circular through holes convenient for installing the bolts are formed in two sides of the upper plate, and a plurality of circular grooves convenient for installing the bolts are formed in two sides of the lower plate.

Preferably, the bottom of the supporting plate is provided with a plurality of wire outlets which are convenient for the fixed wires to ascend and descend.

Preferably, the solution tank is provided with a scale convenient for testing and observing buoyancy experiments.

Compared with the prior art, the beneficial effects of the utility model are that:

1, the utility model discloses an elevating system carries out the operation of going up and down through rotating the rocker, and the height of the control object of being convenient for, elevating system pass through the fixed line and connect the dynamometer, can guarantee that the dynamometer is in the vertical state, can not influence the measurement of object buoyancy, and the couple of dynamometer lower extreme is convenient fixed object.

2, the utility model discloses be equipped with a plurality of solution tanks, the size of liquid is arranged in the time of convenient direct observation object is leading-in the different solutions, and elevating system includes first elevating part and second elevating part, can control the lift of object respectively, and the convenience is observed the lift of same kind of solution, is equipped with the recess of fixed solution trench position on the bottom plate, prevents that the solution tank from empting in the use.

3, the utility model discloses an upper plate and hypoplastron pass through bolted connection, and convenience of customers maintains and inspects elevating system, has prolonged experimental apparatus's life, and the time has been saved to convenient long-time the use.

4, the utility model discloses simple structure, convenient to use, the practicality is strong.

Drawings

FIG. 1 is a schematic structural diagram of an experimental apparatus for buoyancy experiments;

FIG. 2 is a schematic structural diagram of a groove in an experimental apparatus for buoyancy experiments;

fig. 3 is a schematic structural diagram of a lifting mechanism in an experimental apparatus for buoyancy experiments.

In the figure: 1, a bottom plate; 2, a support frame; 3, a first rocker; 4, bolts; 5, an outlet; 6, a support plate; 7, a second rocker; 8, a dynamometer; 9, a solution tank; 10, fixing the wire; 11, a groove; 12, upper plate; 13, a lower plate; 14, a circular groove; 15, semicircular holes; 16, a first limiting plate; 17, a first rotating lever; 18, a first take-up pulley; 19, a second rotating shaft; 20, a second limiting plate; 21, a second take-up pulley.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

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.

Please refer to fig. 1 to 3, which are schematic diagrams of an experimental apparatus for buoyancy experiment. An experimental device for buoyancy experiments comprises two support frames 2 and a plurality of fixing lines 10 which are arranged in parallel, wherein the upper end of each support frame 2 is connected with a support plate 6, the lower end of each support frame 2 is connected with a bottom plate 1, the bottom of each support plate 6 is provided with a plurality of wire outlets 5 which facilitate the lifting of the fixing lines 10, a lifting mechanism which controls the lifting of an object and facilitates the experiments is arranged in each support plate 6, each support plate 6 comprises an upper plate 12 and a lower plate 13, the upper plate 12 and the lower plate 13 are connected through bolts 4, the bottom of each upper plate 12 and the upper surface of each lower plate 13 are respectively provided with a semicircular hole 15 which facilitates the mounting and use of the lifting mechanism, the two sides of each upper plate 12 are provided with a plurality of circular through holes which facilitate the mounting of the bolts 4, the two sides of each lower plate 13 are provided with a plurality of circular grooves 14 which facilitate the mounting of the bolts, time is saved.

The lifting mechanism comprises a first lifting component and a second lifting component, and can respectively control the lifting of an object, so that the lifting of the same solution can be observed conveniently.

First lifting means includes first pivot pole 17, be equipped with two first take-up pulley 18 on the first pivot pole 17, first pivot pole 17 is installed between two parallel arrangement's first limiting plate 16, and first pivot pole 17 passes first limiting plate 16 and is connected with first rocker 3 near the one end of semicircle orifice 15.

The second lifting component comprises a second rotating rod 19, a second take-up pulley 21 is arranged on the second rotating rod 19, the second rotating rod 19 is installed between two second limiting plates 20 which are arranged in parallel, and one end, close to the semicircular hole 15, of the second rotating rod 19 penetrates through the second limiting plate 20 to be connected with a second rocker 7.

The upper surface of the bottom plate 1 is provided with a plurality of grooves 11 for fixing the positions of the solution tanks 9, so that the solution tanks are prevented from being toppled in the use process.

Elevating system is connected to fixed line 10 upper end, and the dynamometer 8 of test buoyancy size is connected to fixed line 10 lower extreme, dynamometer 8 lower extreme is equipped with the couple of convenient fixed object. Elevating system carries out the lift operation through rotating the rocker, and the height of the control object of being convenient for, elevating system pass through fixed line 10 and connect dynamometer 8, can guarantee that dynamometer 8 is in the vertical state, can not influence the measurement of object buoyancy, and the couple of dynamometer 8 lower extreme conveniently fixes the object.

The solution tank 9 is provided with a scale for conveniently observing the size of the discharged liquid when an object is introduced into the solution.

The utility model discloses a theory of operation is: during the use through the couple of dynamometer 8 lower extreme with the object fix on solution tank 9, through rotating first rocker 3 or second rocker 7 and drive elevating system and carry out the lifting operation to dynamometer 8 and adjust to the position that needs, elevating system includes first elevating part and second elevating part, can control the lift of object respectively, the convenience is observed the lift of same kind of solution, can take off bolt 4 through rotating during the long-term use, maintain and inspect elevating system, extension experimental apparatus's life.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The experimental device for the buoyancy experiment comprises two parallel supporting frames (2) and a plurality of fixing lines (10), and is characterized in that the upper ends of the supporting frames (2) are connected with a supporting plate (6), the lower ends of the supporting frames (2) are connected with a bottom plate (1), a lifting mechanism for controlling an object to lift and facilitating the experiment is arranged in the supporting plate (6), the supporting plate (6) comprises an upper plate (12) and a lower plate (13), the upper plate (12) and the lower plate (13) are connected through bolts (4), semicircular holes (15) facilitating installation and use of the lifting mechanism are formed in the bottom of the upper plate (12) and the upper surface of the lower plate (13), a plurality of grooves (11) for fixing the positions of solution tanks (9) are formed in the upper surface of the bottom plate (1), and the lifting mechanism comprises a first lifting part and a second lifting part;

elevating system is connected to fixed line (10) upper end, and dynamometer (8) of test buoyancy size are connected to fixed line (10) lower extreme, dynamometer (8) lower extreme is equipped with the couple of convenient fixed object.

2. The experimental device for buoyancy experiment of claim 1, characterized in that, the first elevating part includes first pivot pole (17), be equipped with two first take-up sheaves (18) on first pivot pole (17), first pivot pole (17) are installed between two parallel arrangement's first limiting plate (16), and first limiting plate (16) is passed to the one end that first pivot pole (17) are close to semicircle orifice (15) and is connected with first rocker (3).

3. The experimental device for the buoyancy experiment of claim 1, wherein the second lifting component comprises a second rotating rod (19), a second take-up pulley (21) is arranged on the second rotating rod (19), the second rotating rod (19) is installed between two second limiting plates (20) which are arranged in parallel, and one end, close to the semicircular hole (15), of the second rotating rod (19) penetrates through the second limiting plate (20) to be connected with the second rocker (7).

4. An experimental device for buoyancy test according to claim 1, wherein the upper plate (12) is provided with a plurality of circular through holes for installing the bolts (4) on both sides, and the lower plate (13) is provided with a plurality of circular grooves (14) for installing the bolts (4) on both sides.

5. The experimental device for the buoyancy experiment is characterized in that a plurality of outlet ports (5) which facilitate the lifting of the fixing line (10) are formed at the bottom of the supporting plate (6).

6. The experimental device for the buoyancy experiment according to claim 1, wherein the solution tank (9) is provided with a scale for conveniently testing and observing the buoyancy experiment.

Images