CN211604468U

CN211604468U - Experimental instrument for exploring movement property of free falling body

Info

Publication number: CN211604468U
Application number: CN202020248254.6U
Authority: CN
Inventors: 许德富; 樊玲; 安楠; 吴子旭
Original assignee: Leshan Normal University
Current assignee: Leshan Normal University
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-09-29
Anticipated expiration: 2030-03-03

Abstract

The utility model belongs to the technical field of free fall tester, in particular to an experimental instrument for exploring the motion property of free fall, comprising a supporting table, a supporting rod, a placing table and an adjusting bin, wherein the supporting rod is fixedly connected to the upper surface of the supporting table, the placing table is fixedly connected to the upper end of the supporting rod, the adjusting bin is arranged on the surface of the supporting rod, a sliding rod is fixedly connected inside the adjusting bin, a sliding sleeve is sleeved on the surface of the sliding rod, a connecting rod is fixedly connected to the side surface of the sliding sleeve, and a fixing component is arranged inside the connecting rod; the utility model discloses, through setting up buffering box, spring and telescopic link, use the device to carry out the in-process of testing as people, when experimental little iron ball whereabouts to the minimum, under the cooperation of buffering box, spring and telescopic link to avoid experimental little iron ball when falling to the minimum, can cushion the produced impact force of experimental little iron ball, avoid experimental little iron ball to cause the damage to a supporting bench.

Description

Experimental instrument for exploring movement property of free falling body

Technical Field

The utility model belongs to the technical field of the free fall tester, concretely relates to explores free fall motion property experiment appearance.

Background

In physical teaching, a free-fall motion experiment is an important experiment, in the experiment process, the mode of testing the free-fall motion is generally to obtain a gravity acceleration value and a rule of the free-fall motion by throwing a small ball with an initial speed of zero and recording displacement, time and other related data of the falling process of the small ball, but the existing device is inconvenient in the adjusting process, and the following device is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an explore free fall motion property experiment appearance has simple structure simple operation to have the characteristics that facilitate the use.

In order to achieve the above object, the utility model provides a following technical scheme: explore free fall motion property experiment appearance, including brace table, bracing piece, place platform and surge bin, bracing piece fixed connection is on the brace table upper surface, place a fixed connection in the bracing piece upper end, the surge bin is seted up on the bracing piece surface, the inside fixedly connected with slide bar of surge bin, the sliding sleeve has been cup jointed on the surface of slide bar, sliding sleeve side fixedly connected with connecting rod, the inside fixed subassembly that is provided with of connecting rod, the movable groove has been seted up on the surge bin surface, the connecting rod is worn to establish in the movable groove, sliding sleeve side fixedly connected with adjusts the pole, the other end fixedly connected with connecting piece of adjusting the pole, connecting piece inner wall fixedly connected with laser measuring instrument, place a lower fixed surface and be connected with the electro-magnet, the electro-magnet lower surface adsorbs there is experimental.

Preferably, a buffer groove is formed in the upper surface of the support table, a telescopic rod is fixedly connected inside the buffer groove, a spring is sleeved on the surface of the telescopic rod, a buffer box is fixedly connected to the other end of the telescopic rod, and the position of the buffer box is matched with the position of the connecting piece.

Preferably, the fixed subassembly includes the transmission storehouse, the transmission storehouse is seted up in the inside of connecting rod, the bearing is worn to be equipped with on transmission storehouse surface, wear to be equipped with the pivot in the bearing, the one end fixedly connected with knob of pivot, the other end fixedly connected with screw thread post of pivot, the other end threaded connection of screw thread post has the screwed pipe, the other end fixedly connected with locating lever of screwed pipe, the constant head tank has been seted up on the slide bar surface, the other end of locating lever is worn to establish in the constant head tank.

Preferably, the side face of the threaded pipe is fixedly connected with a sliding block, the inner wall of the transmission bin is provided with a sliding groove, the sliding block is connected in the sliding groove in a sliding mode, and the sliding block and the sliding groove are respectively provided with two sliding blocks and are symmetrically arranged on two sides of the threaded pipe.

Preferably, an energy storage bin is arranged inside the supporting table, a storage battery is fixedly connected inside the energy storage bin, a control switch is fixedly connected to the front side of the supporting table, a microprocessor is arranged inside the control switch, four bases are fixedly connected to the lower surface of the supporting table and are arranged on the lower surface of the supporting table in a rectangular mode, and a display screen is fixedly connected to the upper surface of the placing table.

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

the utility model discloses, through setting up buffering box, spring and telescopic link, when people use the device to carry out the test, when the little iron ball of experiment falls to the minimum, under the cooperation of buffering box, spring and telescopic link, thereby avoid the little iron ball of experiment when falling to the minimum, can cushion the impact force that the little iron ball of experiment produced, avoid the little iron ball of experiment to cause the damage to the brace table, through setting up fixed subassembly, when people need adjust the position of connecting piece, people only need to use the instrument to twist the knob, drive the screw thread post simultaneously and rotate, under the cooperation of screw thread post and screwed pipe, thereby drive the locating lever and move, when the locating lever shifts out of the locating slot, people need to drag the connecting piece, adjust the position of connecting piece, after the connecting piece reaches the assigned position, people only need to twist the knob in reverse direction, thereby push the locating lever back again in the locating slot and can fix a position the connecting piece, the position of the connecting piece can be conveniently adjusted and fixed by people.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic structural view of the fixing assembly of the present invention;

FIG. 4 is a schematic view of the structure at A in FIG. 1;

in the figure: 1. a support table; 2. a support bar; 3. a placing table; 4. a regulating bin; 5. a slide bar; 6. a sliding sleeve; 7. a connecting rod; 8. a fixing assembly; 801. a transmission bin; 802. a bearing; 803. a rotating shaft; 804. a knob; 805. a threaded post; 806. a threaded pipe; 807. positioning a rod; 808. positioning a groove; 809. a slider; 810. A chute; 9. a movable groove; 10. adjusting a rod; 11. a connecting member; 12. a laser measuring instrument; 13. an electromagnet; 14. testing small iron balls; 15. a buffer tank; 16. a telescopic rod; 17. a spring; 18. a buffer box; 19. an energy storage bin; 20. a storage battery; 21. a control switch; 22. a base; 23. a fixed block; 24. a graduated scale; 25. a display screen.

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.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: an experimental instrument for researching the movement property of a free falling body comprises a supporting table 1, a supporting rod 2, a placing table 3 and an adjusting bin 4, wherein the supporting rod 2 is fixedly connected to the upper surface of the supporting table 1, the placing table 3 is fixedly connected to the upper end of the supporting rod 2, the adjusting bin 4 is arranged on the surface of the supporting rod 2, a sliding rod 5 is fixedly connected inside the adjusting bin 4, a sliding sleeve 6 is sleeved on the surface of the sliding rod 5, a connecting rod 7 is fixedly connected to the side surface of the sliding sleeve 6, a fixing component 8 is arranged inside the connecting rod 7, a movable groove 9 is arranged on the surface of the adjusting bin 4, the connecting rod 7 is arranged in the movable groove 9 in a penetrating manner, an adjusting rod 10 is fixedly connected to the side surface of the sliding sleeve 6, a connecting piece 11 is fixedly connected to the other end of the adjusting rod, and a small test iron ball 14 is adsorbed on the lower surface of the electromagnet 13.

Specifically, a buffer slot 15 has been seted up to a supporting bench 1 upper surface, the inside fixedly connected with telescopic link 16 of buffer slot 15, spring 17 has been cup jointed on the surface of telescopic link 16, the other end fixedly connected with buffer box 18 of telescopic link 16, through setting up buffer box 18, spring 17 and telescopic link 16, use the device to carry out experimental in-process when people, when experimental little iron ball 14 falls to the minimum, under buffer box 18, spring 17 and telescopic link 16's cooperation to avoid experimental little iron ball 14 when falling to the minimum, can cushion the impact force that experimental little iron ball 14 produced, avoid experimental little iron ball 14 to cause the damage to a supporting bench 1, the position of buffer box 18 and the position phase-match of connecting piece 11.

Specifically, the fixing assembly 8 includes a transmission bin 801, the transmission bin 801 is disposed inside the connecting rod 7, a bearing 802 penetrates through the surface of the transmission bin 801, a rotating shaft 803 penetrates through the bearing 802, one end of the rotating shaft 803 is fixedly connected with a knob 804, the other end of the rotating shaft 803 is fixedly connected with a threaded column 805, the other end of the threaded column 805 is connected with a threaded pipe 806 through threads, the other end of the threaded pipe 806 is fixedly connected with a positioning rod 807, a positioning groove 808 is disposed on the surface of the sliding rod 5, and the other end of the positioning rod 807 penetrates through the positioning groove 808.

Specifically, the side surface of the threaded pipe 806 is fixedly connected with a slide block 809, the inner wall of the transmission bin 801 is provided with a sliding groove 810, the sliding block 809 is slidably connected in the sliding groove 810, two sliding blocks 809 and two sliding grooves 810 are provided, and are symmetrically arranged at both sides of the threaded pipe 806, by arranging the fixing component 8, when people need to adjust the position of the connecting piece 11, one need only use a tool to turn knob 804, while driving threaded post 805 to rotate, the positioning rod 807 is moved by the cooperation of the threaded post 805 and the threaded tube 806, and when the positioning rod 807 moves out of the positioning groove 808, one needs to drag the connecting member 11, the position of the connecting piece 11 is adjusted, when the connecting piece 11 reaches the designated position, people only need to turn the knob 804 reversely, therefore, the positioning rod 807 is pushed back into the positioning groove 808 again to position the connecting piece 11, and people can conveniently adjust and fix the position of the connecting piece 11.

Specifically, energy storage bin 19 has been seted up to supporting bench 1 is inside, the inside fixedly connected with battery 20 in energy storage bin 19, the positive fixedly connected with control switch 21 of supporting bench 1, the inside microprocessor that is provided with of control switch 21, supporting bench 1 fixed surface is connected with base 22, base 22 is total four to be the rectangle and arrange at supporting bench 1 lower surface, place 3 upper surface fixedly connected with display screens 25 of platform.

The utility model discloses a theory of operation and use flow: the utility model discloses, when using, at first remove the device to the assigned position, then control the electro-magnet 13 through control switch 21 and operate, then adsorb experiment tiny iron ball 14 at electro-magnet 13 lower surface, when people need adjust the position of connecting piece 11, people only need to use the instrument to twist knob 804, drive screw thread post 805 simultaneously and rotate, under the cooperation of screw thread post 805 and screwed pipe 806, thereby drive locating lever 807 and move, when locating lever 807 shifts out locating groove 808, people need drag connecting piece 11, adjust the position of connecting piece 11, after connecting piece 11 arrives the assigned position, people only need to twist knob 804 in the reverse direction, thereby push back the locating lever in locating groove 808 again and can fix a position connecting piece 11, then people only need to control electro-magnet 13 through control switch 21 and stop operating, thereby make experiment tiny iron ball 14 lose the adsorption power of electro-magnet 13, so as to make free fall movement, under the action of the laser measuring instrument 12, the operation data of the small iron ball 14 is read, and finally the test data is displayed on the surface of the display screen 25.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Explore free fall motion property experiment appearance, including brace table (1), bracing piece (2), place platform (3) and surge bin (4), its characterized in that: the supporting rod (2) is fixedly connected to the upper surface of the supporting table (1), the placing table (3) is fixedly connected to the upper end of the supporting rod (2), the adjusting bin (4) is arranged on the surface of the supporting rod (2), the sliding rod (5) is fixedly connected to the inside of the adjusting bin (4), the sliding sleeve (6) is sleeved on the surface of the sliding rod (5), the connecting rod (7) is fixedly connected to the side surface of the sliding sleeve (6), the fixing component (8) is arranged inside the connecting rod (7), the movable groove (9) is formed in the surface of the adjusting bin (4), the connecting rod (7) is arranged in the movable groove (9) in a penetrating mode, the adjusting rod (10) is fixedly connected to the side surface of the sliding sleeve (6), the connecting piece (11) is fixedly connected to the other end of the adjusting rod (10), the laser measuring instrument (12) is fixedly connected to the inner, and a small test iron ball (14) is adsorbed on the lower surface of the electromagnet (13).

2. The experimental instrument for exploring the movement property of free fall according to claim 1, wherein: buffer slot (15) have been seted up to brace table (1) upper surface, inside fixedly connected with telescopic link (16) of buffer slot (15), spring (17) have been cup jointed on the surface of telescopic link (16), the other end fixedly connected with buffer box (18) of telescopic link (16), the position phase-match of the position of buffer box (18) and connecting piece (11).

3. The experimental instrument for exploring the movement property of free fall according to claim 1, wherein: the fixing assembly (8) comprises a transmission bin (801), the transmission bin (801) is arranged inside the connecting rod (7), a bearing (802) penetrates through the surface of the transmission bin (801), a rotating shaft (803) penetrates through the bearing (802), a knob (804) is fixedly connected to one end of the rotating shaft (803), a threaded column (805) is fixedly connected to the other end of the rotating shaft (803), a threaded pipe (806) is arranged on the other end of the threaded column (805) in a threaded connection mode, a positioning rod (807) is fixedly connected to the other end of the threaded pipe (806), a positioning groove (808) is formed in the surface of the sliding rod (5), and the other end of the positioning rod (807) penetrates through the positioning groove (808).

4. The experimental instrument for exploring the movement property of the free falling body according to claim 3, wherein: the side face of the threaded pipe (806) is fixedly connected with a sliding block (809), the inner wall of the transmission bin (801) is provided with a sliding groove (810), the sliding block (809) is connected in the sliding groove (810) in a sliding mode, the sliding block (809) and the sliding groove (810) are respectively provided with two sliding blocks, and the two sliding blocks are symmetrically arranged on two sides of the threaded pipe (806).

5. The experimental instrument for exploring the movement property of free fall according to claim 1, wherein: energy storage bin (19) have been seted up to brace table (1) inside, inside fixedly connected with battery (20) in energy storage bin (19), positive fixedly connected with control switch (21) of brace table (1), control switch (21) inside is provided with microprocessor, brace table (1) lower fixed surface is connected with base (22), base (22) are total four to be the rectangle and arrange at brace table (1) lower surface, place bench (3) upper fixed surface and be connected with display screen (25).