CN216527696U

CN216527696U - Physical buoyancy experiment demonstration device

Info

Publication number: CN216527696U
Application number: CN202122534234.2U
Authority: CN
Inventors: 夏国辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-05-13
Anticipated expiration: 2031-10-21

Abstract

The application discloses physics buoyancy experiment presentation device, including placing the board and putting the liquid case, it has to put the liquid case to place board top block. Through setting up the partition interval, can detect the buoyancy that the object receives under the liquid of different density, can demonstrate the relevant factor of buoyancy, position on the dead lever through the object, the size of the buoyancy that the judgement object that can understand receives, moreover, the steam generator is simple in structure convenient, the practicality of presentation device is improved, through limit structure, make it can place board internal stability placing to put the liquid case, also make things convenient for to put the liquid case and take out from placing the board and wash alone, conveniently putting the liquid of liquid incasement portion and placing different density, the convenience when the presentation device uses has been improved, setting through elevation structure, can be when the demonstration, the height of opposition liquid case is adjusted, conveniently adjust the demonstration height according to the teaching environment, conveniently adapt to the demonstration of different scenes, and easy operation is convenient.

Description

Physical buoyancy experiment demonstration device

Technical Field

The application relates to a demonstration device, in particular to a physical buoyancy experiment demonstration device.

Background

The buoyancy refers to the action force of the object which is vertically and upwards supported by the fluid when the object is immersed in the fluid, the size of the buoyancy of the object in the liquid is only related to the volume of the object immersed in the liquid and the density of the liquid, and is not related to the density, the motion state, the depth of the object immersed in the liquid and other factors, and the relation between the buoyancy and the density of the liquid and the volume of the immersed object needs to be shown through experiments in order to better show the relation.

Traditional presentation device need be through modes such as tensiometer, show buoyancy and liquid density with by being soaked the relation between the object volume, when experimental, need will be soaked the thing and fix the back with the tensiometer, place in liquid, the buoyancy that the object received is judged to the pulling force that reduces through the tensiometer, and the effect is not directly perceived inadequately during the experiment, and operation process is comparatively loaded down with trivial details, has reduced presentation device's practicality. Therefore, a physical buoyancy experiment demonstration device is provided for solving the problems.

Disclosure of Invention

The utility model provides a physics buoyancy experiment presentation device is used for solving buoyancy experiment presentation device structure and complex operation and effect among the prior art problem directly perceived inadequately.

According to one aspect of the application, the physical buoyancy experiment demonstration device comprises a placing plate and a liquid containing box, wherein the liquid containing box is clamped at the top end of the placing plate; put the liquid case middle part and be fixed with the division board, the division board both sides put the inside dead lever that all the symmetry is fixed with of liquid case, and the dead lever top is fixed with clamping screw, four clamping screw top threaded connection has spacing lid, put the board top of placing of liquid case both sides and be provided with limit structure, it is provided with the lift adjustment structure to place the board bottom, put the board inside of placing in the liquid case outside and seted up the water catch bowl, and the inside block of water catch bowl has the sponge that absorbs water, it all is provided with the scale mark with the dead lever front side to place the board.

Further, limit structure includes the limiting plate, place the board top of placing of liquid case both sides and all be fixed with the limiting plate, two the inside all slip block of limiting plate has the fixed block, and fixed block the inner all fixes respectively in putting liquid case both sides, every the all blocks of fixed block side have the carriage release lever, and the carriage release lever all with the inside sliding connection of limiting plate, all be fixed with the spring between carriage release lever outer end and the limiting plate inside, the carriage release lever side all is fixed with the activity ejector pad, and the activity ejector pad all with the inside sliding connection of limiting plate.

Further, the lifting adjusting structure comprises a supporting base, rotating connecting rods and adjusting screws, the supporting base is arranged below the placing plate, supporting rods are arranged in the middle of the front side and the rear side between the placing plate and the supporting base, the two supporting rods are connected with the rotating connecting rods in a staggered and rotating mode, one end of each of the two rotating connecting rods on the inner side is rotatably connected to the bottom end of the placing plate through a hinged shaft, one end of each of the two rotating connecting rods on the outer side is rotatably connected to the top end of the supporting base through a hinged shaft, the other end of each of the two rotating connecting rods on the inner side is rotatably connected to a movable sleeve block through a hinged shaft, the movable sleeve block is slidably connected with the inside of the supporting base, the adjusting screws are sleeved at the central positions of the movable sleeve blocks through threaded holes in a threaded manner, the adjusting screws are connected with the inside of the supporting base through bearings, and handles are fixed at the ends of the adjusting screws extending to the outside of the supporting base, the two outside the other end of rotation connecting rod all is connected with the slider through the articulated shaft rotation, and the slider all with place the spout sliding connection that the board bottom was seted up

Furthermore, put liquid case both sides and all be fixed with the handle, place the board top and seted up and put liquid case complex draw-in groove, put liquid case be transparent plastic material.

Furthermore, the diameter of the outer ring of the limiting cover is larger than that of the fixing rod, and the sum of the heights of the fixing rod and the limiting cover is smaller than the height of the interior of the liquid containing box.

Furthermore, the water collecting tank and the water absorption sponge are both arranged in a shape of a Chinese character 'hui' matched with the liquid placing tank, and the diameter of the fixing screw rod is smaller than that of the fixing rod.

Furthermore, every limiting plate top all seted up with fixed block complex spacing groove, fixed block inside all seted up with carriage release lever complex fixed slot.

Further, the height of activity ejector pad all is less than the height of carriage release lever, the limiting plate side all seted up with activity ejector pad complex movable groove, the width in movable groove all is greater than the width of fixed block.

Furthermore, support the inside adjustment tank that all offers with removal nest block sliding fit of base, and all offer on the support base of adjustment tank top and spout bottom and the board of placing with articulated shaft complex fluting.

Furthermore, the bracing piece all sets up to "worker" font of transversely placing, four rotate the connecting rod inside all seted up with bracing piece complex rotation through-hole.

Through the above-mentioned embodiment of this application, adopted split type demonstration structure, during the experiment, put the liquid of liquid incasement portion placing different density in the slider both sides, put the object of different volume, density and weight again on the dead lever, can the object through the dead lever on the height of locating, the buoyancy that the object received under the observation different conditions has solved current buoyancy experiment presentation device structure and complex operation and the not enough audio-visual problem of effect, has improved presentation device's practicality.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional elevation view of an embodiment of the present application;

FIG. 3 is a schematic sectional front view of a portion of an embodiment of the present application;

FIG. 4 is a schematic side cross-sectional view of a portion of an embodiment of the present application.

In the figure: 1. placing the plate; 2. a liquid storage box; 3. fixing the rod; 4. fixing the screw rod; 5. a limiting cover; 6. scale lines; 7. a water collection tank; 8. a water-absorbing sponge; 9. a limiting plate; 10. a fixed block; 11. a travel bar; 12. a spring; 13. a movable push block; 14. a support base; 15. rotating the connecting rod; 16. a support bar; 17. hinging a shaft; 18. moving the sleeve block; 19. adjusting the screw rod; 20. A crank; 21. a slider; 22. a chute; 23. a partition plate.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The demonstration device in the embodiment can be suitable for a laboratory bench, for example, the following physical buoyancy experiment demonstration device is provided in the embodiment, and the demonstration device in the embodiment can be used for a physical teaching laboratory bench.

The method comprises the following steps: a support mechanism; the first experiment table is fixedly arranged at the top of the supporting mechanism; the block mechanism is fixedly arranged on the periphery of the top surface of the first experiment table; the support mechanism is fixedly connected to four corners of the top surface of the first experiment table and comprises a support end, a support stop bolt, a support stop nut, support scales and an experiment table support, the experiment table support is fixedly mounted on the four corners of the top surface of the first experiment table, and the support end is fixedly connected to the top end of the experiment table support; the middle part of the outer side surface of the experiment table bracket is clamped and slidably connected with the bracket stop bolt, and the bracket stop bolt is in threaded connection with the bracket stop nut; the two sides of the outer side surface of the experiment table bracket are provided with the bracket scales; the second experiment table is connected to one sides, away from the support stop bolts, of the four experiment table supports in a sliding clamping mode; and the separation mechanism is clamped and slidably connected to the second experiment table.

Of course, the present embodiment can be used in other experiment tables. The following describes a presentation apparatus according to an embodiment of the present application.

Referring to fig. 1-4, a physical buoyancy experiment demonstration device comprises a placing plate 1 and a liquid containing tank 2, wherein the top end of the placing plate 1 is clamped with the liquid containing tank 2; the middle part of the liquid containing box 2 is fixed with a partition plate 23, the inner parts of the liquid containing boxes 2 at the two sides of the partition plate 23 are symmetrically fixed with fixed rods 3, the top ends of the fixed rods 3 are fixed with fixed screws 4, the top ends of the four fixed screws 4 are in threaded connection with a limit cover 5, the top ends of the placing plates 1 at the two sides of the liquid containing box 2 are provided with limit structures, the bottom end of the placing plate 1 is provided with a lifting adjusting structure, the inner part of the placing plate 1 at the outer side of the liquid containing box 2 is provided with a water collecting tank 7, the water absorbing sponge 8 is clamped in the water collecting tank 7, the front sides of the placing plates 1 and the fixed rods 3 are provided with scale marks 6, the buoyancy force borne by the object can be visually seen through the height of the object on the fixed rods 3, and the partition type design can place the objects with different volumes or different masses in the liquid with the same density so as to judge the relevant factors of the buoyancy force and can also be placed in the liquids with different densities, objects in the same volume are convenient to control variables, and the practicability and convenience of the demonstration device are improved;

the limiting structure comprises limiting plates 9, the top ends of the placing plates 1 on the two sides of the liquid placing box 2 are both fixed with the limiting plates 9, the fixed blocks 10 are clamped in the two limiting plates 9 in a sliding mode, the inner ends of the fixed blocks 10 are respectively fixed on the two sides of the liquid placing box 2, the side edge of each fixed block 10 is clamped with a movable rod 11, the movable rods 11 are all connected with the limiting plates 9 in a sliding mode, springs 12 are fixed between the outer ends of the movable rods 11 and the inner portions of the limiting plates 9, movable push blocks 13 are fixed on the side edges of the movable rods 11, and the movable push blocks 13 are all connected with the inner portions of the limiting plates 9 in a sliding mode, so that the liquid placing box 2 can be placed more stably in the placing plates 1, and the stability of the demonstration device during use is improved; the lifting adjusting structure comprises a supporting base 14, rotating connecting rods 15 and adjusting screws 19, the supporting base 14 is arranged below a placing plate 1, supporting rods 16 are arranged in the middle of the front side and the rear side between the placing plate 1 and the supporting base 14, the rotating connecting rods 15 are connected to the two supporting rods 16 in a staggered and rotating mode, one end of each of the two rotating connecting rods 15 at the inner side is rotatably connected to the bottom end of the placing plate 1 through a hinge shaft 17, one end of each of the two rotating connecting rods 15 at the outer side is rotatably connected to the top end of the supporting base 14 through the hinge shaft 17, the other end of each of the two rotating connecting rods 15 at the inner side is rotatably connected to a movable sleeve block 18 through the hinge shaft 17, the movable sleeve block 18 is slidably connected with the inside of the supporting base 14, the adjusting screw 19 is sleeved at the central position of the movable sleeve block 18 through a thread hole, the adjusting screw 19 is connected with the inside of the supporting base 14 through a bearing, and a crank 20 is fixed at one end of the adjusting screw 19 extending to the outside of the supporting base 14, the other ends of the two outer rotary connecting rods 15 are rotatably connected with sliding blocks 21 through hinge shafts 17, the sliding blocks 21 are slidably connected with sliding grooves 22 formed in the bottom ends of the placing plates 1, and the height of the liquid placing box 2 is adjusted through a lifting structure, so that the liquid placing box 2 is convenient to adapt to demonstration of different heights, and the application range of the liquid placing box 2 is greatly improved; handles are fixed on two sides of the liquid containing box 2, a clamping groove matched with the liquid containing box 2 is formed in the top end of the containing plate 1, the liquid containing box 2 is made of transparent plastic materials, the liquid containing box 2 can be conveniently lifted out of the containing plate 1, and the position of an object in the liquid containing box 2 can be conveniently observed; the diameter of the outer ring of the limiting cover 5 is larger than that of the fixing rod 3, the sum of the heights of the fixing rod 3 and the limiting cover 5 is smaller than the height of the interior of the liquid containing box 2, and the limiting cover 5 is used for limiting, so that objects are placed on the fixing rod 3 more stably, and the objects are prevented from moving out of the liquid containing box 2; the water collecting tank 7 and the water absorption sponge 8 are both arranged in a shape of a Chinese character 'hui' matched with the liquid placing tank 2, the diameter of the fixing screw rod 4 is smaller than that of the fixing rod 3, so that liquid brought out from the inside of the liquid placing tank 2 can be conveniently absorbed, and after the water absorption sponge 8 absorbs the liquid, the liquid can be directly pulled out from the inside of the water collecting tank 7 for cleaning, the liquid is prevented from flowing to the ground, and the fixing screw rod 4 is prevented from influencing the installation of objects; the top end of each limiting plate 9 is provided with a limiting groove matched with the fixing block 10, and fixing grooves matched with the moving rods 11 are formed in the fixing blocks 10, so that the fixing blocks 10 are conveniently clamped with the limiting plates 9, and the moving rods 11 are conveniently inserted into the fixing blocks 10; the heights of the movable push blocks 13 are all smaller than the height of the movable rod 11, the side edges of the limiting plate 9 are provided with movable grooves matched with the movable push blocks 13, the widths of the movable grooves are all larger than the width of the fixed block 10, the movable rod 11 can stably move in the limiting plate 9 conveniently, and the movable push blocks 13 can pull the movable rod 11 out of the fixed block 10; the supporting base 14 is internally provided with an adjusting groove in sliding fit with the movable sleeve block 18, and the supporting base 14 and the placing plate 1 at the top end of the adjusting groove and the bottom end of the sliding groove 22 are respectively provided with a groove in fit with the hinge shaft 17, so that the movable sleeve block 18 can conveniently move in the supporting base 14, and the hinge shaft 17 can conveniently move along with the movement of the rotating connecting rod 15; the support rods 16 are all arranged in an I shape and are transversely placed, the four rotating connecting rods 15 are all provided with rotating through holes matched with the support rods 16, the separation of the two rotating connecting rods 15 on each side is avoided, and the rotating connecting rods 15 can rotate on the support rods 16 conveniently.

When the application is used and an experiment is needed, liquid with different densities is filled in the liquid containing boxes 2 at two sides of the sliding block 21, then two objects with different volumes, masses and densities are placed in the liquid with the same density at the same time, or two objects with completely the same conditions are placed on the fixed rods 3 at two sides of the sliding block 21 respectively, so that the buoyancy borne by the objects can be observed under the condition of controlling any convenient condition, when the application is placed, the limiting cover 5 is screwed, the limiting cover 5 is taken off from the fixed rods 3, then the objects are sleeved on the fixed rods 3, then the limiting cover 5 is screwed to the fixed screws 4 for fixing, when in demonstration, the crank 20 can be rotated to drive the adjusting screw 19 to rotate, under the action of threads, the movable sleeve block 18 is driven to horizontally move, so that under the matching of the supporting rod 16 and the hinging shaft 17, meanwhile, the rotating connecting rod 15 on the outer side drives the sliding block 21 to move inside the sliding groove 22, namely the connecting rod 15 can be rotated to movably drive the placing plate 1 to move up and down, the placing plate 1 can be adjusted to be convenient for demonstration, when the liquid box 2 needs to be oppositely arranged and the inside of the liquid box is cleaned, the movable push blocks 13 on two sides are pushed, the movable push blocks 11 are driven to compress the springs 12 and move out of the fixing grooves, the limiting fixing between the fixing blocks 10 and the limiting plates 9 can be released, the liquid box 2 can be placed and the inside of the liquid box 1 can be taken out through the handle, after the cleaning is completed, the liquid box 2 is clamped and placed inside the placing plate 1, the movable rods 11 are loosened, the movable rods 11 are pushed by the springs 12, the butt is connected to the inside of the fixing blocks 10, and the liquid box 2 can be fixed inside the placing plate 1.

The application has the advantages that:

1. the buoyancy force borne by the object can be detected under the liquid with different densities by arranging the separation areas, relevant factors of the buoyancy force can be demonstrated, the size of the buoyancy force borne by the object can be clearly judged through the position of the object on the fixed rod 3, the structure is simple and convenient, and the practicability of the demonstration device is improved;

2. the liquid containing box 2 is reasonable in structure, the liquid containing box 2 can be stably placed in the placing plate 1 through the limiting structure, the liquid containing box 2 can be conveniently taken out of the placing plate 1 to be cleaned independently, liquid with different densities can be conveniently placed in the liquid containing box 2, and convenience in use of the demonstration device is improved;

3. this application is rational in infrastructure, through elevation structure's setting, can be when the demonstration, the height of opposition liquid tank 2 is adjusted, and the convenience is adjusted the demonstration height according to the teaching environment, conveniently adapts to the demonstration of different scenes, and easy operation is convenient.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a physical buoyancy experiment presentation device which characterized in that: the device comprises a placing plate (1) and a liquid containing box (2), wherein the liquid containing box (2) is clamped at the top end of the placing plate (1); put liquid case (2) middle part and be fixed with division board (23), division board (23) both sides put liquid case (2) inside all the symmetry and be fixed with dead lever (3), and dead lever (3) top is fixed with clamping screw (4), four clamping screw (4) top threaded connection has spacing lid (5), it is provided with limit structure to put board (1) top of placing of liquid case (2) both sides, it is provided with the lift adjustment structure to place board (1) bottom, place board (1) inside the outside of liquid case (2) and seted up water catch bowl (7), and the inside block of water catch bowl (7) has water absorption sponge (8), it all is provided with scale mark (6) to place board (1) and dead lever (3) front side.

2. The physical buoyancy experiment demonstration device according to claim 1, wherein: limiting structure includes limiting plate (9), place board (1) top of placing of liquid case (2) both sides and all be fixed with limiting plate (9), two limiting plate (9) inside all sliding block has fixed block (10), and fixed block (10) the inner all fixes respectively and puts liquid case (2) both sides, every fixed block (10) side all blocks have carriage release lever (11), and carriage release lever (11) all with limiting plate (9) inside sliding connection, all be fixed with spring (12) between carriage release lever (11) outer end and limiting plate (9) inside, carriage release lever (11) side all is fixed with activity ejector pad (13), and activity ejector pad (13) all with limiting plate (9) inside sliding connection.

3. The physical buoyancy experiment demonstration device according to claim 1, wherein: the lifting adjusting structure comprises a supporting base (14), rotating connecting rods (15) and adjusting screws (19), wherein the supporting base (14) is arranged below the placing plate (1), supporting rods (16) are arranged in the middle of the front side and the rear side between the placing plate (1) and the supporting base (14), the two supporting rods (16) are connected with the rotating connecting rods (15) in a staggered and rotating mode, one end of each rotating connecting rod (15) on the inner side is rotatably connected to the bottom end of the placing plate (1) through a hinge shaft (17), one end of each rotating connecting rod (15) on the outer side is rotatably connected to the top end of the supporting base (14) through the hinge shaft (17), the other end of each rotating connecting rod (15) on the inner side is rotatably connected to a movable sleeve block (18) through the hinge shaft (17), the movable sleeve block (18) is connected with the inside of the supporting base (14) in a sliding mode, the adjusting screws (19) are sleeved on the center position of the movable sleeve block (18) through threaded holes and threads, and adjusting screw (19) pass through bearing and support base (14) internal connection, adjusting screw (19) extend to the one end that supports base (14) outside and are fixed with crank (20), and two in the outside the other end of rotation connecting rod (15) all is connected with slider (21) through articulated shaft (17) rotation, and slider (21) all with place spout (22) sliding connection that board (1) bottom was seted up.

4. The physical buoyancy experiment demonstration device according to claim 1, wherein: put liquid case (2) both sides and all be fixed with the handle, place board (1) top seted up with put liquid case (2) complex draw-in groove, put liquid case (2) be the transparent plastic material.

5. The physical buoyancy experiment demonstration device according to claim 1, wherein: the diameter of the outer ring of the limiting cover (5) is larger than that of the fixing rod (3), and the sum of the heights of the fixing rod (3) and the limiting cover (5) is smaller than the height of the interior of the liquid tank (2).

6. The physical buoyancy experiment demonstration device according to claim 1, wherein: the water collecting tank (7) and the water absorbing sponge (8) are both arranged in a shape of 'returning' matched with the liquid placing tank (2), and the diameter of the fixing screw rod (4) is smaller than that of the fixing rod (3).

7. The physical buoyancy experiment demonstration device according to claim 2, wherein: every limiting plate (9) top all seted up with fixed block (10) complex spacing groove, fixed block (10) inside all seted up with carriage release lever (11) complex fixed slot.

8. The physical buoyancy experiment demonstration device according to claim 2, wherein: the height of activity ejector pad (13) all is less than the height of carriage release lever (11), limiting plate (9) side all seted up with activity ejector pad (13) complex movable groove, the width in movable groove all is greater than the width of fixed block (10).

9. A physical buoyancy experiment demonstration device according to claim 3, wherein: the supporting base (14) is internally provided with an adjusting groove in sliding fit with the movable sleeve block (18), and the supporting base (14) at the top end of the adjusting groove and the bottom end of the sliding groove (22) and the placing plate (1) are provided with grooves matched with the hinge shaft (17).

10. A physical buoyancy experiment demonstration device according to claim 3, wherein: the supporting rods (16) are all arranged in an I shape and are transversely arranged, and four rotating through holes matched with the supporting rods (16) are formed in the rotating connecting rods (15).