CN210039300U

CN210039300U - Swing ball experimental device easy to operate and low in error

Info

Publication number: CN210039300U
Application number: CN201920192171.7U
Authority: CN
Inventors: 赵建果; 陶亚萍; 赵阿可; 韩运侠; 赵秋颖
Original assignee: Luoyang Normal University
Current assignee: Luoyang Normal University
Priority date: 2019-02-12
Filing date: 2019-02-12
Publication date: 2020-02-07
Anticipated expiration: 2029-02-12

Abstract

The utility model discloses an easy-to-operate low-error pendulum ball experimental device in the field of teaching experimental equipment, which comprises a base and a counterweight block, wherein a support column is fixedly arranged at the top of the base, a horizontal scale mark is fixedly arranged on the side wall of the support column, a vertical scale mark is fixedly arranged at the bottom end of the side wall of the support column, a horizontal rod is fixedly arranged on the side wall of the support column, a wire rope groove is fixedly arranged on the side wall of the horizontal rod, a pendulum rope is wound on the outer wall of the wire rope groove, a magnet fixing block is fixedly arranged at the bottom of the pendulum rope, a counterweight block is fixedly adsorbed on the magnet fixing block, the counterweight block comprises a hemisphere, a connecting rod and a connecting block, the connecting block is fixedly arranged at the central position of the surface of the hemisphere, the connecting rod is fixedly arranged on the, the experimental error is reduced, and the measurement error is reduced through the more intuitive side amount pendulum length.

Description

Swing ball experimental device easy to operate and low in error

Technical Field

The utility model relates to a teaching experiment equipment field specifically is a pendulum ball experimental apparatus of low error of easy operation.

Background

The simple pendulum is a device capable of generating reciprocating swing, one end of a thin and flexible rope without a heavy thin rod or inextensible is suspended at a certain point in a gravity field, and the other end of the thin and flexible rope is fixedly connected with a heavy small ball, so that the simple pendulum is formed.

At present, chinese patent with application number CN201120102410.9 discloses a novel simple pendulum experimental apparatus, including multi-purpose iron stand platform fixation clamp, pendulum rod take-up pulley crotch, take-up pulley, angle board and cycloid pendulum ball, characterized by: can light card go into and take out the pendulum ball on the take-up pulley, the pendulum ball at cycloid both ends, the difference is the different metal ball of the same weight of size and plastic ball, it exchanges a ball card and advances the light weight that can change the pendulum fast to take out pendulum ball, wave the shaking hand rocking arm on the take-up pulley, can shorten the length with the cycloid, change pendulum rope length experiment no longer need tie a knot, take-up pulley rocking arm is the hollow tube, the bolt can be hidden in the pipe, it does not rotate when the bolt is used for locking the take-up pulley experiment, the take-up pulley can be with the whole receipts of cycloid pendulum ball, in order to avoid tens pendulum balls to twine together, though this uses novel cycloid to be difficult for knoing, and stability is strong, but this utility model measurement cycloid length inaccuracy, and gravity center position changes and can produce the error.

Based on this, the utility model designs an easy operation low error pendulum ball experimental apparatus to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pendulum ball experimental apparatus of low error of easy operation to the measurement cycloid length inaccuracy that proposes in solving above-mentioned background art, gravity center position changes the problem that can produce the error when the configuration piece is changed.

In order to achieve the above object, the utility model provides a following technical scheme: an easy-to-operate low-error pendulum ball experimental device comprises a base and a balancing weight, wherein a support column is fixedly arranged at the top of the base, transverse scale marks are fixedly arranged on the side wall of the support column, vertical scale marks are fixedly arranged at the bottom end of the side wall of the support column, a cross rod is fixedly arranged on the side wall of the support column, a wire rope groove is fixedly arranged on the side wall of the cross rod, a pendulum rope is wound on the outer wall of the wire rope groove, a magnet fixing block is fixedly arranged at the bottom of the pendulum rope, the balancing weight is fixedly adsorbed on the magnet fixing block, the balancing weight comprises a hemisphere, a connecting rod and a connecting block, the connecting block is fixedly arranged at the central position of the surface of the hemisphere, the connecting rod is fixedly arranged on the surface of the hemisphere, an inner sleeve is slidably arranged on, the top of the outer sleeve is fixedly provided with a conical clamping sleeve, the outer wall of the inner sleeve is fixedly provided with a first clamping piece, the side wall of the first clamping piece is fixedly provided with a guide pillar, the side wall of the first clamping piece is in threaded fit with a screwing rod, the top of the screwing rod is fixedly provided with a knob, the outer wall of the guide pillar is in sliding fit with a second clamping piece, and the outer wall of the screwing rod is in rotating fit with the second clamping piece.

Preferably, the top of the support column is fixedly provided with an anti-scratch arc.

Preferably, the outer wall of the inner sleeve is fixedly provided with a finger pinching groove.

Preferably, the outer wall of the outer sleeve is fixedly provided with anti-skid grains.

Preferably, the base is made of cast iron.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the utility model discloses a set up the balancing weight fixed point in the focus position of balancing weight to make and change the balancing weight and can not influence and pendulum long, reduced experimental error. 2. The utility model discloses a more set up the structure and make the number of degrees mode of pendulum length more directly reduce measuring error.

Drawings

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

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

FIG. 2 is a schematic cross-sectional view of the clamping sleeve of the present invention;

FIG. 3 is an enlarged view of FIG. 1A according to the present invention;

fig. 4 is an enlarged view of fig. 1B according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-base, 2-balancing weight, 3-supporting column, 4-transverse scale line, 5-vertical scale line, 6-cross bar, 7-line rope groove, 8-swinging rope, 9-magnet fixing block, 10-hemisphere, 11-connecting rod, 12-connecting block, 13-inner sleeve, 14-elastic clamping piece, 15-outer sleeve, 16-clamping sleeve, 17-first clamping piece, 18-tightening rod, 19-knob, 20-guide column, 21-second clamping piece, 22-anti-scratch arc and 23-finger pinching groove.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an easy-to-operate low-error swing ball experimental device comprises a base 1 and a balancing weight 2, wherein a supporting column 3 is fixedly arranged at the top of the base 1, transverse scale marks 4 are fixedly arranged on the side wall of the supporting column 3, vertical scale marks 5 are fixedly arranged at the bottom end of the side wall of the supporting column 3, a cross rod 6 is fixedly arranged on the side wall of the supporting column 3, a wire rope groove 7 is fixedly arranged on the side wall of the cross rod 6, a swing rope 8 is wound on the outer wall of the wire rope groove 7, a magnet fixing block 9 is fixedly arranged at the bottom of the swing rope 8, the balancing weight 2 is fixedly adsorbed on the magnet fixing block 9, the balancing weight 2 comprises a hemisphere 10, a connecting rod 11 and a connecting block 12, the connecting block 12 is fixedly arranged at the central position of the circular surface of the hemisphere 10, the connecting rod 11 is fixedly arranged on the circular surface of, the top of the outer sleeve 15 is fixedly provided with a conical clamping sleeve 16, the outer wall of the inner sleeve 13 is fixedly provided with a first clamping piece 17, the side wall of the first clamping piece 17 is fixedly provided with a guide pillar 20, the side wall of the first clamping piece 17 is in threaded fit with a screwing rod 18, the top of the screwing rod 18 is fixedly provided with a knob 19, the outer wall of the guide pillar 20 is in sliding fit with a second clamping piece 21, and the outer wall of the screwing rod 18 is in running fit with the second clamping piece 21.

Wherein, the fixed anti-scratch circular arc 22 that is provided with in support column 3 top, the fixed finger that has seted up of inner sleeve 13 outer wall is held between the fingers groove 23, and outer sleeve 15 outer wall is fixed and is provided with anti-skidding line, and base 1 adopts cast iron material.

One specific application of this embodiment is: use the utility model discloses at first install balancing weight 2 during the experiment of pendulum, the utility model discloses a design balancing weight 2 for two hemispheres 10 make balancing weight 2 central point put can vacate and be used for installing through connecting rod 11 connection, through set up connecting block 12 and magnet fixed block 9 absorption cooperation at hemisphere 10 central point and be convenient for change balancing weight 2, through this kind of setting can not change balancing weight 2's focus position when changing different balancing weights 2, consequently can not influence the pendulum length because of the change of focus position to the experiment precision has been improved.

After the balancing weight 2 is installed, the inner sleeve 13 is adjusted to slide the inner sleeve 13 to a proper position, then the fingers hold the finger holding groove 23, the outer sleeve 15 is rotated by the other hand, the distance between the outer sleeve 15 and the inner sleeve 13 can be shortened by the rotation due to the threaded fit between the outer sleeve 15 and the inner sleeve 13, the elastic clip 14 is of an elastic structure due to the conical design of the clamping sleeve 16 and the elastic clip 14, the inner wall of the clamping sleeve 16 can extrude the outer wall of the elastic clip 14 in the process, so that the inner wall of the elastic clip 14 is tightly attached to the swinging rope 8, the inner wall of the elastic clip 14 is closer and closer until the elastic clip is completely fixed by friction force along with the tightening and attaching, then the tightening rod 18 is rotated, the tightening rod 18 is matched with the first clamping piece 17 through threads, so that the tightening rod 18 can drive the knob 19 to tightly clamp the second clamping piece 21 and the first clamping piece 17, simultaneously the guide pillar 20 can play the guide effect and can not the time the second presss from both sides tight piece 21 and take place the skew, thereby the second presss from both sides tight piece 21 and presss from both sides tight 8 that can extrude the balance staff 8 middle sections and fix with first clamp piece 17, the length of pendulum this moment is exactly the length of the bottom of first clamp piece 17 to 2 focus positions of balancing weight, so can simple and convenient this distance of drawing through horizontal scale mark 4 because the bottom of first clamp piece 17 aligns with horizontal scale mark 4, this kind of method is less than measuring the step with the ruler and observes directly perceived, consequently measuring error is littleer.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an easy operation low-error pendulum ball experimental apparatus, includes base (1), its characterized in that: the movable support is characterized by further comprising a balancing weight (2), a supporting column (3) is fixedly arranged at the top of the base (1), transverse scale marks (4) are fixedly arranged on the side wall of the supporting column (3), vertical scale marks (5) are fixedly arranged at the bottom end of the side wall of the supporting column (3), a cross rod (6) is fixedly arranged on the side wall of the supporting column (3), a wire rope groove (7) is fixedly arranged on the side wall of the cross rod (6), a swinging rope (8) is wound on the outer wall of the wire rope groove (7), a magnet fixing block (9) is fixedly arranged at the bottom of the swinging rope (8), the balancing weight (2) is fixedly adsorbed on the magnet fixing block (9), the balancing weight (2) comprises a hemisphere (10), a connecting rod (11) and a connecting block (12), the connecting block (12) is fixedly arranged at the center of the circular surface of the hemisphere (, the clamping device is characterized in that an inner sleeve (13) is slidably mounted on the outer wall of the supporting column (3), a conical elastic clamping piece (14) is fixedly arranged at the top of the inner sleeve (13), an outer sleeve (15) is in threaded fit with the outer wall of the inner sleeve (13), a conical clamping sleeve (16) is fixedly arranged at the top of the outer sleeve (15), a first clamping piece (17) is fixedly arranged on the outer wall of the inner sleeve (13), a guide pillar (20) is fixedly arranged on the side wall of the first clamping piece (17), a screwing rod (18) is in threaded fit with the side wall of the first clamping piece (17), a knob (19) is fixedly arranged at the top of the screwing rod (18), a second clamping piece (21) is in sliding fit with the outer wall of the guide pillar (20), and the outer wall of the screwing rod.

2. The pendulum ball experimental apparatus of easy operation low-error of claim 1, characterized in that: and the top of the supporting column (3) is fixedly provided with an anti-scratch arc (22).

3. The pendulum ball experimental apparatus of easy operation low-error of claim 1, characterized in that: and a finger pinching groove (23) is fixedly formed in the outer wall of the inner sleeve (13).

4. The pendulum ball experimental apparatus of easy operation low-error of claim 1, characterized in that: the outer wall of the outer sleeve (15) is fixedly provided with anti-slip lines.

5. The pendulum ball experimental apparatus of easy operation low-error of claim 1, characterized in that: the base (1) is made of cast iron.