CN210244774U

CN210244774U - Physical friction experiment demonstration instrument

Info

Publication number: CN210244774U
Application number: CN201920632873.2U
Authority: CN
Inventors: Jing Xiu; 修静
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-04-03
Anticipated expiration: 2029-05-06

Abstract

The utility model discloses a physical friction experiment demonstration appearance, including first foot rest and second foot rest, the welding of the left top of first foot rest has the box, mounting fixedly connected with motor is passed through to the left bottom of box inner chamber, the output shaft fixedly connected with action wheel of motor, the surface of action wheel is connected with from the driving wheel through belt transmission, from the fixedly connected with hob of axle center department on driving wheel right side. The utility model discloses a set up action wheel, belt, from driving wheel, hob, bearing frame, spiral recess, slide bar, extension plate, place the cooperation of board, slider and spout and use, reached the effect of increase demonstration appearance area, help student's experiment, the student can freely adjust the area of demonstration appearance and experiment the friction experiment, has brought the facility for the experiment, has improved student's experimental efficiency to the practicality of physics friction experiment demonstration appearance has been improved.

Description

Physical friction experiment demonstration instrument

Technical Field

The utility model relates to a physical experiment apparatus technical field specifically is a physical friction experiment demonstration appearance.

Background

The experimental physics is relative to theoretical physics, the theoretical physics is a subject for theoretically exploring the basic rules of the structure, interaction and motion of substances unknown in the nature, the research field of the theoretical physics relates to particle physics, atomic nucleus physics, statistical physics, condensed state physics, cosmology and the like, and almost comprises the basic theoretical problems of all branches of physics, the experimental physics mainly explores the material world and the natural rules from the experiment, in the physical experiment, the friction experiment is an important experiment, the demonstration of the friction experiment usually needs a demonstration instrument, at present, the existing demonstration instrument has the defect of unadjustable area, the limitation is brought to the friction experiment, the inconvenience of the experiment is caused, the experiment efficiency of students is reduced, and the practicability of the existing demonstration instrument for the physical friction experiment is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a physical friction experiment demonstration appearance possesses the advantage of adjusting demonstration appearance experimental area, has solved current demonstration appearance and has had the problem that the area is not adjustable.

In order to achieve the above object, the utility model provides a following technical scheme: a physical friction experiment demonstration instrument comprises a first foot rest and a second foot rest, wherein a box body is welded at the left top of the first foot rest, a motor is fixedly connected at the left bottom of an inner cavity of the box body through a fixing part, an output shaft of the motor is fixedly connected with a driving wheel, the surface of the driving wheel is connected with a driven wheel through belt transmission, a rolling rod is fixedly connected at the axle center of the right side of the driven wheel, the right side of the rolling rod penetrates through the first foot rest and extends to the right side of the second foot rest, a bearing seat is sleeved at the left side of the surface of the rolling rod, the left side of the bearing seat is welded with the top of the right side of the first foot rest, a spiral groove is formed in the right side of the surface of the rolling rod, a sliding rod is connected with an inner cavity of the spiral groove in a sliding manner, the welding of the top of first foot rest has places the board, the left side of extension board is run through and is placed the board and extend to the inner chamber of placing the board, the left top of extension board and bottom all weld the slider, place the right side of board inner chamber top and bottom and all seted up the spout that uses with the slider cooperation.

Preferably, the bottom welding on first foot rest right side has the sleeve, telescopic inner chamber sliding connection has the lagging, the right side of lagging and the left bottom welding of second foot rest, the draw-in groove has been seted up on the surface at lagging top, telescopic bottom is provided with the kelly of using with the draw-in groove cooperation, the draw-in groove is run through and extends to telescopic top at the top of kelly.

Preferably, the bottom of the first foot rest and the bottom of the second foot rest are both movably connected with universal wheels, and the surfaces of the universal wheels are subjected to rubber cushion buffering treatment.

Preferably, the right side of the placing plate is movably connected with a supporting plate through a connecting rod, and the right side of the bottom of the supporting plate is in contact with the right side of the top of the lengthening plate through a connecting block.

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

1. the utility model discloses a set up action wheel, belt, from the driving wheel, roll bar, bearing frame, spiral groove, slide bar, extension plate, place the board, slider and spout and use in coordination, reached the effect of increase demonstration appearance area, solved the problem that the area is unadjustable that has in the current demonstration appearance, helped student's experiment, student can freely adjust the area of demonstration appearance to experiment the friction experiment, brought the facility for the experiment, improved student's experimental efficiency to the practicality of physical friction experiment demonstration appearance has been improved;

2. the utility model discloses a set up the sleeve, the lagging, the cooperation of draw-in groove and kelly, reached the stable effect to this device, ensured the stability of placing board and backup pad, the accuracy of friction experiment has been improved, through setting up the universal wheel, the flexibility of this device has been improved, the student's of being convenient for promotion sets up the universal wheel rubber blanket buffering and handles, the frictional force between universal wheel and the ground has been reduced, thereby the life of universal wheel has been prolonged, through setting up connecting rod and backup pad, the backup pad has been ensured and the level of placing the board, the student's of being convenient for experiment.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a matching use diagram of the sleeve plate and the clamping rod of the present invention.

In the figure: the device comprises a first supporting foot frame 1, a second supporting foot frame 2, a box body 3, a motor 4, a driving wheel 5, a belt 6, a driven wheel 7, a rolling rod 8, a bearing seat 9, a spiral groove 10, a sliding rod 11, a lengthened plate 12, a placing plate 13, a sliding block 14, a sliding groove 15, a sleeve 16, a sleeve 17, a clamping groove 18, a clamping rod 19, a universal wheel 20, a connecting rod 21 and a supporting plate 22.

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. 1-2, a physical friction experiment demonstration instrument comprises a first foot rest 1 and a second foot rest 2, wherein a sleeve 16 is welded at the bottom of the right side of the first foot rest 1, a sleeve plate 17 is slidably connected to the inner cavity of the sleeve 16, the right side of the sleeve plate 17 is welded with the bottom of the left side of the second foot rest 2, a clamping groove 18 is formed in the surface of the top of the sleeve plate 17, a clamping rod 19 matched with the clamping groove 18 for use is arranged at the bottom of the sleeve 16, the top of the clamping rod 19 penetrates through the clamping groove 18 and extends to the top of the sleeve 16, the sleeve plate 17, the clamping groove 18 and the clamping rod 19 are matched to achieve the effect of stabilizing the device, the stability of a placing plate 13 and a supporting plate 22 is guaranteed, the accuracy of a friction experiment is improved, universal wheels 20 are movably connected at the bottoms of the first foot rest 1 and the second foot rest 2, and the surface of the universal, the device improves the flexibility by arranging the universal wheel 20, is convenient for students to push, is provided with the universal wheel 20 and is subjected to rubber cushion buffering treatment, so that the friction force between the universal wheel 20 and the ground is reduced, thereby prolonging the service life of the universal wheel 20, the left top of the first foot rest 1 is welded with the box body 3, the left bottom of the inner cavity of the box body 3 is fixedly connected with the motor 4 through a fixing piece, the output shaft of the motor 4 is fixedly connected with the driving wheel 5, the surface of the driving wheel 5 is in transmission connection with the driven wheel 7 through the belt 6, the axle center of the right side of the driven wheel 7 is fixedly connected with the roller bar 8, the right side of the roller bar 8 penetrates through the first foot rest 1 and extends to the right side of the second foot rest 2, the left side of the surface of the roller bar 8 is sleeved with the bearing seat 9, the left, the inner cavity sliding connection of spiral groove 10 has slide bar 11, the welding of the top of slide bar 11 has extension board 12, the right side of extension board 12 bottom and the top welding of second foot rest 2, the welding of the top of first foot rest 1 has places board 13, the right side of placing board 13 has backup pad 22 through connecting rod 21 swing joint, the right side of backup pad 22 bottom is through the right side contact of connecting block and extension board 12 top, through setting up connecting rod 21 and backup pad 22, the level of backup pad 22 and placing board 13 has been ensured, be convenient for student's experiment, the left side of extension board 12 runs through and places board 13 and extends to the inner cavity of placing board 13, slider 14 has all been welded at the left top of extension board 12 and bottom, place board 13 inner cavity top and the right side of bottom and all seted up spout 15 that uses with slider 14 cooperation, through setting up action wheel 5, belt 6, from driving wheel 7, roll bar 8, bearing frame, Spiral groove 10, slide bar 11, extension plate 12, place board 13, slider 14 and spout 15's cooperation and use, reached the effect of increase demonstration appearance area, solved current demonstration appearance and had the problem that the area is not adjustable, helped student's experiment, the student can freely adjust the area of demonstration appearance and experiment friction experiment, has brought the facility for the experiment, has improved student's experimental efficiency to the practicality of physics friction experiment demonstration appearance has been improved.

During the use, if the student wants the area of increase demonstration appearance, only need make motor 4 work through external controller, motor 4 drives action wheel 5 and rotates, action wheel 5 drives through belt 6 and rotates from driving wheel 7, it rotates to drive roller 8 through bearing frame 9 from driving wheel 7, roller 8 drives spiral groove 10 and rotates, spiral groove 10 drives slide bar 11 and removes, slide bar 11 drives extension plate 12 through the cooperation of slider 14 and spout 15 and removes, cooperation through kelly 19 and draw-in groove 18, fix lagging 17, reach the stable effect to whole device, the device is fixed the back, the student can be according to the cooperation of connecting rod 21 and loose axle, make backup pad 22 with place board 13 level, thereby the adjustable effect of demonstration appearance area has been reached.

In summary, the following steps: this physical friction experiment demonstration appearance through action wheel 5, belt 6, from driving wheel 7, rolling bar 8, bearing frame 9, spiral groove 10, slide bar 11, extension plate 12, place board 13, slider 14 and the cooperation of spout 15, has solved current demonstration appearance and has had the problem that the area is not adjustable.

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 physical friction experiment demonstration appearance, includes first foot rest (1) and second foot rest (2), its characterized in that: the left top welding of first foot rest (1) has box (3), the left bottom of box (3) inner chamber passes through mounting fixedly connected with motor (4), the output shaft fixedly connected with action wheel (5) of motor (4), the surface of action wheel (5) is connected with from driving wheel (7) through belt (6) transmission, axle center department fixedly connected with roller (8) from driving wheel (7) right side, the right side of roller (8) runs through first foot rest (1) and extends to the right side of second foot rest (2), bearing frame (9) has been cup jointed on the left side on roller (8) surface, the left side of bearing frame (9) and the top welding on first foot rest (1) right side, spiral groove (10) have been seted up on the right side on roller (8) surface, the inner chamber sliding connection of spiral groove (10) has slide bar (11), the welding of the top of slide bar (11) has lengthened board (12), the right side of lengthened board (12) bottom and the top welding of second foot rest (2), the top welding of first foot rest (1) has places board (13), the left side of lengthened board (12) is run through and is placed board (13) and extend to the inner chamber of placing board (13), left top and the bottom of lengthened board (12) have all been welded slider (14), place board (13) inner chamber top and the right side of bottom and all seted up spout (15) that use with slider (14) cooperation.

2. The physical friction experiment demonstration instrument according to claim 1, characterized in that: the bottom welding on first foot rest (1) right side has sleeve (16), the inner chamber sliding connection of sleeve (16) has lagging (17), the right side and the left bottom welding of second foot rest (2) of lagging (17), draw-in groove (18) have been seted up on the surface at lagging (17) top, the bottom of sleeve (16) is provided with kelly (19) that use with draw-in groove (18) cooperation, the top of kelly (19) runs through draw-in groove (18) and extends to the top of sleeve (16).

3. The physical friction experiment demonstration instrument according to claim 1, characterized in that: the bottom of the first foot rest (1) and the bottom of the second foot rest (2) are both movably connected with universal wheels (20), and the surfaces of the universal wheels (20) are subjected to rubber cushion buffering treatment.

4. The physical friction experiment demonstration instrument according to claim 1, characterized in that: the right side of the placing plate (13) is movably connected with a supporting plate (22) through a connecting rod (21), and the right side of the bottom of the supporting plate (22) is in contact with the right side of the top of the lengthening plate (12) through a connecting block.