CN219370502U

CN219370502U - Buoyancy demonstration device

Info

Publication number: CN219370502U
Application number: CN202320228808.XU
Authority: CN
Inventors: 李强
Original assignee: Lianyungang Normal College
Current assignee: Lianyungang Normal College
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-07-18
Anticipated expiration: 2033-02-16

Abstract

The utility model discloses a buoyancy demonstration device, which comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a hollow pipe, the top of the hollow pipe is fixedly connected with a lifting mechanism, the lifting mechanism comprises a motor and a spring dynamometer, the bottom of the spring dynamometer is movably connected with a hook code, four vertical holes are formed in the surface of the hollow pipe, the bottom of the surface of the hollow pipe is fixedly connected with a limiting plate, four through holes are formed in the top of the limiting plate, the bottom of the limiting plate is provided with a placement mechanism, and the placement mechanism comprises four bearing plates. According to the buoyancy demonstration device, the bottom plate, the hollow tube, the limiting plate, the through hole, the placement mechanism, the glassware, the bearing plate, the connecting rod, the lifting mechanism, the motor, the threaded rod, the threaded sleeve, the fixing rod, the hook, the spring dynamometer, the limiting ring, the groove, the limiting groove and the sucker are arranged to be matched for use, so that the problem that the conventional buoyancy demonstration device does not have the function of simultaneously demonstrating multiple liquids is solved.

Description

Buoyancy demonstration device

Technical Field

The utility model belongs to the technical field of buoyancy, and particularly relates to a buoyancy demonstration device.

Background

The object immersed in the fluid is subjected to a force vertically upwards by the fluid, called buoyancy, in the opposite direction to the force of gravity. Buoyancy refers to the immersion of an object in a fluid (liquid and gas), the surfaces being subjected to a difference in fluid pressure (the resultant force of the fluid on the object).

For example, application number: the utility model discloses a CN202120311538.X, which relates to the technical field of physical teaching equipment and comprises a base, wherein a support plate is fixedly connected to the bottom of the base, a clamping groove is formed in the base, a first limit groove is formed in the upper surface of the base, a second limit groove is formed in one side of the upper surface of the base, a test tube is clamped in the middle of the upper surface of the base, and a support rod is fixedly arranged on the other side of the upper surface of the base. This junior middle school physical teaching buoyancy presentation device sets up through the cooperation of spring and card post, and when junior middle school physical teaching buoyancy presentation device used, can prevent that the graduated flask from receiving external force influence and leading to not hard up broken problem, through the cooperation setting of second spacing groove and kicking block, make junior middle school physical teaching buoyancy presentation device possess the function of conveniently measuring buoyancy, reached convenient operation swift effect, improved junior middle school physical teaching buoyancy presentation device's practicality.

Based on the retrieval of the above-mentioned patent to and combining the equipment discovery among the prior art, above-mentioned equipment makes the physical teaching buoyancy presentation device of junior middle school possess the function of conveniently measuring buoyancy when using, has reached convenient operation swift effect, has improved junior middle school's physical teaching buoyancy presentation device's practicality, but buoyancy presentation device among the above-mentioned patent only can demonstrate the buoyancy of single liquid, does not possess the problem of demonstrating many liquids simultaneously.

Accordingly, the present utility model provides a device that can demonstrate the simultaneous buoyancy of multiple liquids.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides a buoyancy demonstration device which has the advantage of simultaneously carrying out buoyancy demonstration on various liquids and solves the problem that the conventional buoyancy demonstration device does not have the function of simultaneously demonstrating the various liquids.

The buoyancy demonstration device comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a hollow pipe, the top of the hollow pipe is fixedly connected with a lifting mechanism, the lifting mechanism comprises a motor and a spring dynamometer, the bottom of the spring dynamometer is movably connected with a hook code, four vertical holes are formed in the surface of the hollow pipe, the bottom of the surface of the hollow pipe is fixedly connected with a limiting plate, four through holes are formed in the top of the limiting plate, and a placement mechanism is arranged at the bottom of the limiting plate.

As the preferable one of the utility model, the placing mechanism comprises four bearing plates, six connecting rods are fixedly connected to the tops of the bearing plates, the tops of the connecting rods are fixedly connected with the limiting plates, glassware is movably connected to the tops of the bearing plates, and the surfaces of the glassware are movably connected with the inner cavity of the through hole.

As the preferable mode of the utility model, the output end of the motor penetrates through the inner cavity of the hollow tube and is fixedly connected with a threaded rod, the bottom of the threaded rod is movably connected with the bottom of the inner cavity of the hollow tube, the top of the surface of the threaded rod is sleeved with a threaded sleeve, the surface of the threaded sleeve is fixedly connected with four fixing rods, one side of the fixing rod, which is far away from the threaded sleeve, penetrates through a vertical hole and extends to the outer side of the hollow tube, the bottom of the fixing rod is fixedly connected with a hook, and the bottom of the hook is movably connected with a spring dynamometer.

As the preferable mode of the utility model, the bottom of the surface of the motor is sleeved with the limiting ring, and the bottom of the limiting ring is fixedly connected with the hollow tube.

As the preferable mode of the utility model, the bottom of the surface of the threaded rod is sleeved with a bearing seat, and the bottom of the bearing seat is movably connected with the inner wall of the hollow tube.

As the preferable mode of the utility model, the top of the bottom plate is provided with six grooves, and the inner cavities of the grooves can be used for placing the hook codes.

As the preferable mode of the utility model, four limit grooves are formed in the bottom of the bottom plate, and the top of the inner cavity of each limit groove is fixedly connected with a sucker.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the buoyancy demonstration device, the bottom plate, the hollow tube, the limiting plate, the through hole, the placement mechanism, the glassware, the bearing plate, the connecting rod, the lifting mechanism, the motor, the threaded rod, the threaded sleeve, the fixing rod, the hook, the spring dynamometer, the limiting ring, the groove, the limiting groove and the sucker are arranged to be matched for use, so that the problem that the conventional buoyancy demonstration device does not have the function of simultaneously demonstrating multiple liquids is solved.

2. According to the utility model, different liquids are placed in different glassware, the cooperation of the bearing plate and the connecting rod supports the glassware, then the hook code is hung on the spring dynamometer, at the moment, the output end of the first motor drives the threaded rod to rotate, the threaded rod drives the fixing rod to move downwards through the threaded sleeve when rotating, the fixing rod drives the spring dynamometer to move downwards through the hook, and the four spring dynamometers respectively drive the hook code to enter different liquids, so that the buoyancy of different liquids is measured, the fixing effect on the hollow pipe is achieved through the arrangement of the limiting ring, and the limiting effect on the threaded rod is achieved through the arrangement of the bearing seat.

3. According to the utility model, the groove is arranged, so that the hook code can be conveniently placed, the limiting groove is arranged, the sucker can be conveniently connected, and the sucker is adsorbed on the surface of the table body, so that the stability of the bottom plate is improved.

Drawings

FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present utility model;

FIG. 2 is a top view of a limiting plate and a through hole provided by an embodiment of the present utility model;

FIG. 3 is a schematic view of a lifting mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a placement mechanism according to an embodiment of the present utility model;

fig. 5 is a bottom view of the base plate, the limiting groove and the suction cup provided by the embodiment of the utility model.

In the figure: 1. a bottom plate; 2. a hollow tube; 3. a limiting plate; 4. a through hole; 5. a placement mechanism; 501. a glass vessel; 502. a carrying plate; 503. a connecting rod; 6. a lifting mechanism; 601. a motor; 602. a threaded rod; 603. a thread sleeve; 604. a fixed rod; 605. a hook; 606. a spring dynamometer; 607. a limiting ring; 7. a groove; 8. a limit groove; 9. and a sucking disc.

Detailed Description

For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.

The structure of the present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 5, the buoyancy demonstration device provided by the embodiment of the utility model comprises a bottom plate 1, wherein the top of the bottom plate 1 is fixedly connected with a hollow pipe 2, the top of the hollow pipe 2 is fixedly connected with a lifting mechanism 6, the lifting mechanism 6 comprises a motor 601 and a spring dynamometer 606, the bottom of the spring dynamometer 606 is movably connected with a hook code, four vertical holes are formed in the surface of the hollow pipe 2, the bottom of the surface of the hollow pipe 2 is fixedly connected with a limiting plate 3, four through holes 4 are formed in the top of the limiting plate 3, and a placement mechanism 5 is arranged at the bottom of the limiting plate 3.

Referring to fig. 1, 3 and 4, the placement mechanism 5 includes four loading boards 502, six connecting rods 503 are fixedly connected to the top of the loading boards 502, the top of the connecting rods 503 is fixedly connected with a limiting board 3, a glassware 501 is movably connected to the top of the loading boards 502, the surface of the glassware 501 is movably connected to the inner cavity of the through hole 4, the output end of the motor 601 penetrates through the inner cavity of the hollow tube 2 and is fixedly connected with a threaded rod 602, the bottom of the threaded rod 602 is movably connected to the bottom of the inner cavity of the hollow tube 2, a threaded sleeve 603 is sleeved on the top of the surface of the threaded rod 602, four fixing rods 604 are fixedly connected to the surface of the threaded sleeve 603, one side, far from the threaded sleeve 603, of the fixing rods 604 penetrates through a vertical hole and extends to the outer side of the hollow tube 2, a hook 605 is fixedly connected to the bottom of the fixing rods 604, a spring dynamometer 606 is movably connected to the bottom of the hook 605, a limiting ring 607 is sleeved on the bottom of the surface of the motor 601, a bearing seat is fixedly connected to the hollow tube 2, a bearing seat is sleeved on the bottom of the limiting ring 607, and the bottom of the surface of the threaded rod 602 is movably connected to the inner wall of the hollow tube 2.

The scheme is adopted: through placing different liquids in different glassware 501, the cooperation of loading board 502 and connecting rod 503 carries out the supporting role to glassware 501, hang the hook sign indicating number later on spring dynamometer 606, the output of first motor 601 will drive threaded rod 602 and rotate this moment, threaded rod 602 drives dead lever 604 through threaded sleeve 603 and moves down when rotating, dead lever 604 drives spring dynamometer 606 through couple 605 and moves down, four spring dynamometers 606 drive the hook sign indicating number respectively and get into different liquids, thereby measure the buoyancy of different liquids, through setting up spacing ring 607, play the fixed action to hollow tube 2, through setting up the bearing frame, play the spacing effect to threaded rod 602.

Referring to fig. 1 and 5, six grooves 7 are formed in the top of the bottom plate 1, hooks can be placed in the inner cavities of the grooves 7, four limit grooves 8 are formed in the bottom of the bottom plate 1, and suction cups 9 are fixedly connected to the tops of the inner cavities of the limit grooves 8.

The scheme is adopted: through setting up recess 7, be convenient for place the hook sign indicating number, through setting up spacing groove 8, be convenient for to the connection of sucking disc 9, sucking disc 9 adsorbs the surface at the table body to the stability of bottom plate 1 has been increased.

The working principle of the utility model is as follows:

when the device is used, different liquids are placed in different glassware 501, the glassware 501 is supported by the cooperation of the bearing plate 502 and the connecting rod 503, then the hook code is hung on the spring dynamometer 606, at the moment, the output end of the first motor 601 drives the threaded rod 602 to rotate, the threaded rod 602 drives the fixing rod 604 to move downwards through the threaded sleeve 603 when rotating, the fixing rod 604 drives the spring dynamometer 606 to move downwards through the hook 605, and the four spring dynamometers 606 respectively drive the hook code to enter different liquids, so that the buoyancy of different liquids is measured.

To sum up: this buoyancy presentation device through setting up bottom plate 1, hollow tube 2, limiting plate 3, through-hole 4, placing mechanism 5, glassware 501, loading board 502, connecting rod 503, elevating system 6, motor 601, threaded rod 602, thread bush 603, dead lever 604, couple 605, spring dynamometer 606, spacing ring 607, recess 7, spacing groove 8 and sucking disc 9's cooperation use, has solved current buoyancy presentation device and has not possessed the problem to the demonstration of many liquids simultaneously.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Buoyancy demonstration device, including bottom plate (1), its characterized in that: the utility model discloses a hollow tube structure, including bottom plate (1), hollow tube (2) of top fixedly connected with, the top fixedly connected with elevating system (6) of hollow tube (2), elevating system (6) are including motor (601) and spring dynamometer (606), the bottom swing joint of spring dynamometer (606) has the hook sign indicating number, four vertical holes have been seted up on the surface of hollow tube (2), the bottom fixedly connected with limiting plate (3) on hollow tube (2) surface, four through-holes (4) have been seted up at the top of limiting plate (3), the bottom of limiting plate (3) is provided with placement machine constructs (5).

2. A buoyancy demonstration device according to claim 1 wherein: the placing mechanism (5) comprises four bearing plates (502), six connecting rods (503) are fixedly connected to the tops of the bearing plates (502), the tops of the connecting rods (503) are fixedly connected with the limiting plates (3), glassware (501) is movably connected to the tops of the bearing plates (502), and the surfaces of the glassware (501) are movably connected with the inner cavity of the through hole (4).

3. A buoyancy demonstration device according to claim 1 wherein: the output of motor (601) runs through to the inner chamber of hollow tube (2) and fixedly connected with threaded rod (602), the bottom swing joint of threaded rod (602) and the bottom of hollow tube (2) inner chamber, the top cover on threaded rod (602) surface is equipped with thread bush (603), the fixed surface of thread bush (603) is connected with four dead levers (604), one side that thread bush (603) was kept away from to dead lever (604) is passed the vertical hole and is extended to the outside of hollow tube (2), the bottom fixedly connected with couple (605) of dead lever (604), the bottom swing joint of couple (605) has spring dynamometer (606).

4. A buoyancy demonstration device according to claim 3 wherein: the bottom of motor (601) surface is overlapped and is equipped with spacing ring (607), the bottom of spacing ring (607) and hollow tube (2) fixed connection.

5. A buoyancy demonstration device according to claim 3 wherein: the bottom of the surface of the threaded rod (602) is sleeved with a bearing seat, and the bottom of the bearing seat is movably connected with the inner wall of the hollow tube (2).

6. A buoyancy demonstration device according to claim 1 wherein: six grooves (7) are formed in the top of the bottom plate (1), and the inner cavity of each groove (7) can be used for placing a hook.

7. A buoyancy demonstration device according to claim 1 wherein: four limit grooves (8) are formed in the bottom of the bottom plate (1), and suction cups (9) are fixedly connected to the tops of the inner cavities of the limit grooves (8).