CN210613785U

CN210613785U - Physical experiment placing table

Info

Publication number: CN210613785U
Application number: CN201921485472.5U
Authority: CN
Inventors: 易应飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-05-26
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses a platform is placed in physical experiment, including handle elevating gear, elevating platform, support frame, regulating plate and experiment landing slab, handle elevating gear establishes on the support frame, and handle elevating gear links to each other with the elevating platform and is used for driving the elevating platform and reciprocates, and the one end and the elevating platform of experiment landing slab rotate to be connected, and the other end rotates with the regulating plate to be connected, and the lower extreme of regulating plate supports and leans on the elevating platform, and when the regulating plate rotated, was used for adjusting the inclination of experiment landing slab. Use the utility model discloses the time, rise to suitable height with the elevating platform through handle elevating gear, make things convenient for all students to see, then place the bobble on the top of experiment platform board, until roll to the bottom of experiment platform board, the experimenter takes notes from the top to the used time in bottom, then adjusts the inclination of experiment platform board through the regulating plate, and the repetition is experimental once more and the record time, can let the student understand this notion of acceleration in macroscopic view.

Description

Physical experiment placing table

Technical Field

The utility model belongs to the technical field of the physical experiment, concretely relates to platform is placed in physical experiment.

Background

Acceleration is an important concept in physics, and in the teaching process, students with poor understanding ability cannot macroscopically understand the acceleration, so that subsequent physical learning cannot catch up; in the existing physical teaching system, a physical display device with the concept of acceleration is often lacked, a physical teacher cannot explain the acceleration in combination with a physical object, and only can explain the acceleration through some teaching examples, but practice proves that the teaching mode is not good.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem that prior art exists, the utility model aims to provide a platform is placed in physical experiment.

According to the utility model discloses an aspect provides a platform is placed in physics experiment, including handle elevating gear, elevating platform, support frame, regulating plate and experiment platform board, handle elevating gear establishes on the support frame, and handle elevating gear links to each other with the elevating platform and is used for driving the elevating platform and reciprocates, and the one end and the elevating platform of experiment platform board rotate to be connected, and the other end rotates with the regulating plate to be connected, and the lower extreme of regulating plate supports and leans on the elevating platform, and the regulating plate is used for adjusting the inclination of experiment platform board.

Use the utility model discloses the time, rise to suitable height with the elevating platform through handle elevating gear, make things convenient for all students to see, then place the top at the experiment landing slab with the bobble, until rolling the bottom to the experiment landing slab, the used time from the top to the bottom of experimenter's record, then adjust the inclination of experiment landing slab through the regulating plate, repeated experiment once more and record time, can let the student understand this notion of acceleration in macroscopical, the length of experiment landing slab can be set for as required.

Additionally, when not using the utility model discloses the time, descend the elevating platform through handle elevating gear to put the experiment platform board flat, can place some device physics teaching aids on experiment platform board and elevating platform, thereby facilitate the use.

In some embodiments, the lifting platform is provided with a plurality of first grooves arranged in parallel, the lower end of the adjusting plate is used for abutting against the first grooves, and the adjusting plate is arranged in different first grooves to adjust the inclination angle of the experiment platform plate.

In some embodiments, the middle position of the experiment platform plate is provided with a second groove, and the cross section of the second groove is semicircular. From this, when the second recess was put into to the experiment bobble, the bobble cooperateed with the transversal hemispherical second recess of personally submitting, can make the second recess of experiment platform board smooth, and the frictional force between bobble and the second recess can basically be ignored, the size of measurement acceleration that can be more accurate lets the change of student's macroscopic seeing acceleration.

In some embodiments, one end of the lift table is provided with a baffle. Thus, the baffle can block the small ball.

In some embodiments, the handle lifting device comprises a handle, a screw rod, a nut, a first fixing frame and a first movable plate, the first fixing frame is arranged on one side of the support frame, the screw rod is vertically arranged, one end of the handle penetrates through the first fixing frame and is coaxially connected with the screw rod, the nut is matched with the screw rod, the first movable plate is fixedly connected with the nut, when the handle rotates, the screw rod is driven to rotate, the screw rod drives the nut to move, the nut drives the first movable plate to move along the first fixing frame, the upper end of the first movable plate is connected with the lifting platform, and the first movable plate drives the lifting platform to move. Therefore, the lifting platform can be adjusted to a proper height through the specific handle lifting device.

In some embodiments, the handle lifting device is provided with one handle lifting device and is arranged on the left side of the support frame, the right side of the support frame is provided with a second fixed frame and a second movable plate, the second movable plate moves along the second fixed frame, the left end of the lifting platform is connected with the upper end of the first movable plate, and the right end of the lifting platform is connected with the upper end of the second movable plate. Therefore, the lifting platform can be driven to move up and down through the handle lifting device, the second moving plate moves along the second fixing frame in the up-and-down moving process of the lifting platform, and the second moving plate plays a role in supporting the right side of the lifting platform.

In some embodiments, the first fixed frame is provided with a track, the first moving plate is provided with a moving block, the moving block is matched with the track, and the first moving plate moves along the track through the moving block. Thereby, the rail plays a role of guiding the movement of the moving block.

In some embodiments, the lower end of the support frame is provided with a support plate, and the support plate is fixed on the ground through screws. From this, can fix whole utility model subaerial through the backup pad.

Drawings

Fig. 1 is a schematic structural diagram of a physical experiment placing table according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a handle lifting device in the physical experiment placing table shown in FIG. 1;

FIG. 3 is a schematic view of the handle lifting device shown in FIG. 2 illustrating a hidden moving plate;

fig. 4 is an enlarged schematic structural view of a portion a of the physical experiment table shown in fig. 1.

In the figure: 1-a handle lifting device; 11-a handle; 12-a screw rod; 13-a nut; 14-a first mount; 141-track; 15-a first moving plate; 151-moving block; 2-a lifting platform; 21-a first groove; 22-a baffle; 3-a support frame; 31-a support plate; 4-experimental platform plate; 41-a second groove; 5-adjusting plate; 6-a second fixing frame; 7-second moving plate.

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.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Fig. 1 to 4 schematically show the structure of a physical experiment placing table according to an embodiment of the present invention.

As shown in fig. 1 to 4, a physical experiment placing table comprises a handle lifting device 1, a lifting table 2, a support frame 3, an experiment platform plate 4 and an adjusting plate 5.

As shown in fig. 1 and 4, in this embodiment, the handle lifting device 1 is installed on the support frame 3, the handle lifting device 1 can be connected to the lifting table 2, and the handle lifting device 1 can drive the lifting table 2 to move up and down, the right end of the experiment platform plate 4 is rotatably connected to the lifting table 2 (the rotation shaft passes through the right end of the experiment platform plate 4 and the middle position of the lifting table 2), the left end of the experiment platform plate 4 is rotatably connected to the upper end of the adjusting plate 5 (the rotation shaft can be rotatably connected), and the lower end of the adjusting plate 5 abuts against the lifting table 2; the lower end of the adjusting plate 5 is abutted against different positions of the lifting table 2, so that the inclination angle of the experiment platform plate 4 (the inclination angle refers to the included angle between the experiment platform plate 4 and the horizontal plane, or the included angle between the experiment platform plate 4 and the upper surface of the lifting table 2) can be adjusted.

How to specifically adjust the inclination of experiment platform board 4 is explained below, as shown in fig. 1 and fig. 4, in this embodiment, a plurality of parallel arrangement's first recess 21 of integrated into one piece are gone up on the left end of elevating platform 2, the lower extreme of regulating plate 5 is parallel with first recess 21, can support in different first recess 21, regulating plate 5 is through establishing in different first recess 21 in order to adjust the inclination of experiment platform board 4, for example, as shown in fig. 1 and fig. 4, when needing to make the inclination grow of experiment platform board 4, only need to take out the lower extreme of regulating plate 5 from the first recess 21 shown in fig. 1 or fig. 4, then rotate the angle of regulating plate 5, make the lower extreme of regulating plate 5 block into in the first recess 21 on the right can.

In order to reduce the friction between the small ball and the experiment platform plate 4 in the experiment process and reduce the error of the experiment data, the second groove 41 can be arranged in the middle of the experiment platform plate 4, the cross section of the second groove 41 is semicircular, when the small ball is placed into the second groove 41, the small ball is matched with the second groove 41 with the hemispherical cross section, the second groove 41 of the experiment platform plate 4 can be made into a smooth part or a part with a small friction coefficient in a polishing and grinding mode, the friction between the small ball and the second groove 41 can be basically ignored, the acceleration can be measured more accurately, and the change of the acceleration can be seen macroscopically by students.

As shown in fig. 1, in this embodiment, a baffle 22 is fixedly installed at the right end of the lifting platform 2, the baffle 22 is vertically disposed, and when the pellet falls, the baffle 22 can block the pellet.

As shown in fig. 1 to 3, in the present embodiment, the handle lifting device 1 includes a handle 11, a screw 12, a nut 13, a first fixing frame 14 and a first moving plate 15, the first fixing frame 14 may be fixedly installed on a left side surface of the supporting frame 3, the screw 12 may be vertically arranged (vertically arranged in fig. 1), a right end of the handle 11 in fig. 2 passes through the first fixing frame 14 and is coaxially connected with the screw 12, the nut 13 is engaged with the screw 12, the first moving plate 15 is fixedly connected with the nut 13, but the first moving plate 15 does not contact with the screw 12.

In the following, the specific principle is as follows: when the height of the lifting platform 2 needs to be adjusted, the handle 11 is rotated, the handle 11 can drive the screw rod 12 coaxially connected with the handle to rotate, the screw rod 12 can drive the nut 13 to move (the screw rod 12 and the nut 13 can be two structures of a ball screw pair, and are a device in the prior art, the rotation of the screw rod 12 can be converted into the linear motion of the nut 13, namely, when the screw rod 12 rotates, the nut 13 can move linearly), and the nut 13 can drive the first moving plate 15 to move along the first fixing frame 14; in fig. 1, the upper end of the first moving plate 15 is connected to the lifting platform 2, the first moving plate 15 drives the lifting platform 2 to move up and down, and the lifting platform 2 can be adjusted to a proper height by the specific handle lifting device 1.

In this embodiment, only one handle lifting device 1 may be provided, and in order to drive the lifting platform 2 to move up and down stably, the second fixing frame 6 and the second moving plate 7 may be installed on the right side of the supporting frame 3, the second moving plate 7 moves along the second fixing frame 6, the left end of the lifting platform 2 is fixedly connected to the upper end of the first moving plate 15, the right end of the lifting platform is fixedly connected to the upper end of the second moving plate 7, the lifting platform 2 may be driven to move up and down by the handle lifting device 1, in the up and down moving process of the lifting platform 2, the second moving plate 7 moves along the second fixing frame 6, and the second moving plate 7 plays a role in supporting the right side of the lifting platform. In this embodiment, the structure of the second fixing frame 6 may be completely the same as the structure of the first fixing frame 14, the structure of the second moving plate 7 may be completely the same as the structure of the first moving plate 15, in addition, the connection structure between the second fixing frame 6 and the second moving plate 7 may also be completely the same as the connection structure between the first fixing frame 14 and the first moving plate 15, and the friction coefficient between the second fixing frame 6 and the second moving plate 7 is small.

As shown in fig. 2 and 3, in the present embodiment, a track 141 is integrally formed on the first fixing frame 14, a moving block 151 is disposed on a lower side surface of the first moving plate 15, the moving block 151 is engaged with the track 141 (that is, the moving block 151 is formed with a locking groove, and the track 141 is disposed in the locking groove), the first moving plate 15 moves along the track 141 through the moving block 151, and the track 141 plays a role of guiding the moving block 151 to move (the friction coefficient between the track 141 and the moving block 151 is small). In addition, the second fixed frame 6 may be provided with a second track 141, and the second moving plate 7 may also be provided with a second moving block, and the second moving block is matched with the second track 141.

As shown in fig. 1, in the present embodiment, a support plate 31 is installed at the lower end of the support frame 3, the support plate 31 is fixed on the ground by screws, and the whole utility model can be fixed on the ground by the support plate 31.

Use the utility model discloses in the time, can rise elevating platform 2 to suitable height through handle elevating gear 1, make things convenient for all students to see subsequent experimentation, then place the top at the second recess 41 of experiment platform board 4 with the bobble, until rolling the bottom to second recess 41, and the used time of top end to end is followed to the record, adjust experiment platform board 4's inclination through regulating plate 5, repeated experiment and record time once more, can let the student understand this notion of acceleration in macroscopical, experiment platform board 4's length can be set for as required.

Additionally, when using the utility model discloses the time, can descend elevating platform 2 through handle elevating gear 1 to put experimental platform board 4 flat, can place some device physics teaching aids, facilitate the use on experimental platform board 4 and elevating platform 2.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. The utility model provides a platform is placed in physics experiment which characterized in that: including handle elevating gear (1), elevating platform (2), support frame (3), experiment platform board (4) and regulating plate (5), establish handle elevating gear (1) on support frame (3), handle elevating gear (1) with elevating platform (2) link to each other and are used for driving elevating platform (2) reciprocate, the one end of experiment platform board (4) with elevating platform (2) rotate to be connected, the other end with regulating plate (5) rotate to be connected, the lower extreme of regulating plate (5) supports and leans on elevating platform (2), regulating plate (5) are used for adjusting the inclination of experiment platform board (4).

2. The physical experiment placement table of claim 1, wherein: be equipped with a plurality of parallel arrangement's first recess (21) on elevating platform (2), the lower extreme of regulating plate (5) is used for supporting in first recess (21), regulating plate (5) are through establishing in different first recess (21) in order to adjust the inclination of experiment platform board (4).

3. The physical experiment placement table of claim 2, wherein: the middle position of experiment platform board (4) is equipped with second recess (41), the cross-section of second recess (41) is semicircular.

4. The physical experiment placement table of claim 3, wherein: one end of the lifting platform (2) is provided with a baffle plate (22).

5. The physical experiment placement table of claim 4, wherein: the handle lifting device (1) comprises a handle (11), a screw rod (12), a nut (13), a first fixing frame (14) and a first movable plate (15), wherein the first fixing frame (14) is arranged on one side of the support frame (3), the screw rod (12) is vertically arranged, one end of the handle (11) penetrates through the first fixing frame (14) and is coaxially connected with the screw rod (12), the nut (13) is matched with the screw rod (12), the first movable plate (15) is fixedly connected with the nut (13), the handle (11) is driven to rotate the screw rod (12), the screw rod (12) drives the nut (13) to move, the nut movable plate (13) drives the first movable plate (15) to move along the first fixing frame (14), the upper end of the first movable plate (15) is connected with the lifting platform (2), the first moving plate (15) drives the lifting platform (2) to move.

6. The physical experiment placement table of claim 5, wherein: handle elevating gear (1) has one, establishes the left side of support frame (3), the right side of support frame (3) is equipped with second mount (6) and second movable plate (7), second movable plate (7) along second mount (6) remove, the left end of elevating platform (2) links to each other with the upper end of first movable plate (15), and the right-hand member links to each other with the upper end of second movable plate (7).

7. The physical experiment placement table of claim 6, wherein: the first fixed frame (14) is provided with a track (141), the first moving plate (15) is provided with a moving block (151), the moving block (151) is matched with the track (141), and the first moving plate (15) moves along the track (141) through the moving block (151).

8. The physical experiment placement table of claim 7, wherein: the lower extreme of support frame (3) is equipped with backup pad (31), backup pad (31) are fixed subaerial through the screw.