CN214752505U

CN214752505U - Angle measuring type wheel shaft demonstration device

Info

Publication number: CN214752505U
Application number: CN202121318178.2U
Authority: CN
Inventors: 高英; 封建伟; 曾恒; 曾毅飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-11-16
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses an angle measuring type wheel shaft demonstration device, which comprises a base, a bracket, a large circular ring, a small circular ring, a solid wheel shaft, a first pointer, a second pointer, a connecting rod, a connecting rope and a hook weight; the support is vertically fixed on the base, a solid wheel shaft is arranged at the top of the support, a small circular ring and a large circular ring are arranged on the solid wheel shaft, inserting holes are respectively formed in the large circular ring and the small circular ring, the connecting rods are detachably inserted into the inserting holes, a plurality of hook codes are arranged, the hook codes are divided into two groups, one group of the hook codes is detachably connected with the solid wheel shaft through a connecting rope, and the other group of the hook codes is detachably connected with the connecting rods through a connecting rope; the first pointer is fixed in the solid wheel shaft, and the second pointer sleeve is arranged on the solid wheel shaft. Adopt presentation device, through audio-visual vivid show, what reaches is the shaft, the shaft has the effect of laborsaving and the wheel of shaft is big more, then more laborsaving purpose, has simple structure, operation and convenient to use, it is more visual visually.

Description

Angle measuring type wheel shaft demonstration device

Technical Field

The utility model relates to an experiment teaching equipment technical field, concretely relates to volume angle formula shaft presentation device.

Background

Physics is a basic subject, is an indispensable subject in modern teaching, and can relate to wheel axle knowledge in the physical teaching process. The wheels and the shafts jointly form a mechanical wheel shaft which can rotate around a common axis. Because physics teaching has its particularity, there are many theorem's law in the teaching process, need carry out audio-visual demonstration through experimental presentation device to help the student to understand. In the existing wheel axle experiment process, pulleys are generally adopted for showing, the existing mode is adopted, the principle of the wheel axle can be simply described, students cannot further study the concept of the wheel axle, a visual wheel axle model cannot be established for the students, and the enlightening effect is not very obvious.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to the problem that exists among the background art, a simple structure is provided, operation and convenient to use's presentation device, specifically speaking are range angle formula shaft presentation device.

For solving the technical problem, the utility model discloses the technical scheme who adopts does: an angle measurement type wheel shaft demonstration device comprises a base, a support, a large circular ring, a small circular ring, a solid wheel shaft, a first pointer, a second pointer, a connecting rod, a connecting rope and a hook code; the support is vertically fixed on the base, a solid wheel shaft arranged in a horizontal state is arranged at the top of the support, a small circular ring and a large circular ring which are coaxially distributed are arranged on the solid wheel shaft at one side far away from the support, the small circular ring and the large circular ring are sequentially distributed on the solid wheel shaft from inside to outside to form a ring sleeve structure, jacks corresponding to the connecting rods are respectively arranged on the large circular ring and the small circular ring, the connecting rods are detachably inserted into the jacks, the hook codes are provided with a plurality of hook codes, the hook codes are divided into two groups, one group of the hook codes are detachably connected with the solid wheel shaft through a connecting rope, and the other group of the hook codes are detachably connected with the connecting rods through a connecting rope; the first pointer is fixed in the solid wheel shaft, the second pointer sleeve is arranged on the solid wheel shaft, the first pointer can rotate along with the solid wheel shaft, and the second pointer is vertically positioned above the base.

Further, a volume of angle formula shaft presentation device, wherein the jack on big ring and the small circle ring is equipped with a plurality ofly respectively, is cyclic annular distribution between a plurality of jacks.

Further, a volume of angularity formula shaft presentation device, wherein be equipped with the lantern ring on the second pointer, the second pointer is arranged in on the solid shaft through the lantern ring cover.

Further, a volume of horn formula shaft presentation device, wherein the center of big ring be equipped with the corresponding first through-hole of small circle ring, the big ring is arranged in through first through-hole cover to the small circle ring the center of small circle ring be equipped with the corresponding second through-hole of solid shaft, the small circle ring is arranged in on the solid shaft through the second through-hole cover.

Adopt a quantity of angle formula shaft presentation device, owing to be equipped with two pointers at solid shaft, be first pointer and second pointer respectively, wherein first pointer is fixed in solid shaft, and can follow solid shaft rotates, and solid epaxial in wheel is arranged in to the second pointer cover, utilizes the hook sign indicating number to be connected with big ring, little ring and solid shaft respectively through connecting the rope, through the lifting height who hooks the sign indicating number, when the laborsaving experiment of reflection shaft and the size change of wheel, the change of its laborsaving size. The demonstration device can be used for visually describing the action principle of the wheel shaft and vividly displaying the relationship between the size of the wheel and the lifting height of the weight, so that the enthusiasm of students for exploring the wheel shaft is improved, the students can more deeply master the rule of the wheel shaft, and the learning interest is improved. Has the advantages of simple structure, convenient operation and use, and is more visual and intuitive.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the demonstration state of the utility model in use.

Shown in the figure: 1-base, 2-support, 3-big circular ring, 4-small circular ring, 5-solid wheel shaft, 6-first pointer, 7-second pointer, 8-connecting rod, 9-connecting rope, 10-hook code and 11-jack.

Detailed Description

To further illustrate the concept of the present invention, the following detailed description will be made with reference to the accompanying drawings:

as shown in fig. 1 and 2, the angle measuring type wheel axle demonstration device of the present invention comprises a base 1, a support 2, a large ring 3, a small ring 4, a solid wheel axle 5, a first pointer 6, a second pointer 7, a connecting rod 8, a connecting rope 9 and a hook fastener 10; the support 2 is vertically fixed on a base 1, a solid wheel shaft 5 which is horizontally arranged is arranged at the top of the support 2, small circular rings 4 and large circular rings 3 which are coaxially distributed are arranged on the solid wheel shaft 5 far away from one side of the support 2, the small circular rings 4 and the large circular rings 3 are sequentially distributed on the solid wheel shaft 5 from inside to outside to form a ring sleeve structure, jacks 11 corresponding to the connecting rods 8 are respectively arranged on the large circular rings 3 and the small circular rings 4, the jacks 11 are provided with a plurality of jacks, the jacks 11 are annularly distributed among the jacks 11, the connecting rods 8 are detachably inserted into the jacks 11, the hook codes 10 are provided with a plurality of hooks 10 which are divided into two groups, one group of hook codes 10 is detachably connected with the solid wheel shaft 5 through a connecting rope 9, and the other group of hook codes 10 is detachably connected with the connecting rods 8 through a connecting rope 9; the first pointer 6 is fixed in the solid wheel shaft 5, and the second pointer 7 is sleeved on the solid wheel shaft 5, wherein the first pointer 6 can rotate along with the solid wheel shaft 5, and the second pointer 7 is vertically positioned above the base 1; and a lantern ring is arranged on the second pointer 7, and the second pointer 7 is sleeved on the solid wheel shaft 5 through the lantern ring.

Further, a volume of angle formula shaft presentation device, wherein big ring 3's center be equipped with little ring 4 corresponding first through-hole, little ring 4 is arranged in big ring 3 through first through-hole cover little ring 4's center be equipped with solid shaft 5 corresponding second through-hole, little ring 4 is arranged in on solid shaft 5 through the second through-hole cover.

Adopt a quantity of angle formula shaft presentation device, when mainly used verified the laborsaving experiment of shaft and the size change of wheel, the situation of change of its laborsaving size through setting up the different rings of two diameters as the wheel, adopts solid shaft as the axle. When the resistance is on the shaft, the acting force is saved on the wheel; when the resistance is not changed on the shaft, when the wheel is gradually increased, the weight on the shaft can be lifted higher when the same force is applied to the larger wheel, so that the included angle formed by the pointer fixedly connected with the shaft center and the drooping pointer can be increased, and the labor-saving size condition can be displayed through the size change of the included angle.

Therefore, it is obvious, adopt presentation device, owing to be equipped with two pointers on solid shaft 5, be first pointer 6 and second pointer 7 respectively, wherein first pointer 6 is fixed in solid shaft 5, and can follow solid shaft 5 rotates, and on solid shaft 5 was arranged in to second pointer 7 cover, utilize hook yard 10 to be connected with big ring 3, little circular ring 4 and solid shaft 5 respectively through connecting rope 9, through the lifting height of hook yard 10, when the laborsaving experiment of reflection shaft and the size change of wheel, the change of its laborsaving size. Through the visual and visual display, the purpose of saving labor when the wheel shaft is used as a wheel shaft and the larger the wheel of the wheel shaft is can be achieved.

To sum up, adopt presentation device, the effect principle of description shaft that can be audio-visual to can demonstrate the relation between the size of wheel and the heavy object hoisting height vividly, thereby improve the enthusiasm that the student explored to the shaft, be favorable to the more deep law of mastering the shaft of student, improve the interest in study. Has the advantages of simple structure, convenient operation and use, and is more visual and intuitive.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and to those skilled in the art, the present invention can be variously modified and changed, and 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. The utility model provides a volume angle formula shaft presentation device which characterized in that: comprises a base (1), a bracket (2), a large circular ring (3), a small circular ring (4), a solid wheel shaft (5), a first pointer (6), a second pointer (7), a connecting rod (8), a connecting rope (9) and a hook (10); the bracket (2) is vertically fixed on the base (1), the top of the bracket (2) is provided with a solid wheel shaft (5) which is arranged in a horizontal state, a small circular ring (4) and a large circular ring (3) which are coaxially distributed are arranged on a solid wheel shaft (5) which is far away from one side of the bracket (2), the small circular ring (4) and the large circular ring (3) are sequentially distributed on the solid wheel shaft (5) from inside to outside to form a ring sleeve structure, the large circular ring (3) and the small circular ring (4) are respectively provided with a jack (11) corresponding to the connecting rod (8), the connecting rod (8) is detachably inserted into the insertion hole (11), the hook codes (10) are provided in plurality, the hook codes (10) are divided into two groups, one group of hook codes (10) are detachably connected with the solid wheel shaft (5) through a connecting rope (9), and the other group of hook codes (10) are detachably connected with the connecting rod (8) through the connecting rope (9); the first pointer (6) is fixed in the solid wheel shaft (5), the second pointer (7) is sleeved on the solid wheel shaft (5), the first pointer (6) can rotate along with the solid wheel shaft (5), and the second pointer (7) is vertically positioned above the base (1).

2. The angularity wheel axle demonstration device of claim 1 wherein: the jacks (11) on the large circular ring (3) and the small circular ring (4) are respectively arranged in a plurality, and the jacks (11) are distributed in an annular manner.

3. The angularity wheel axle demonstration device of claim 1 wherein: a lantern ring is arranged on the second pointer (7), and the second pointer (7) is sleeved on the solid wheel shaft (5) through the lantern ring.

4. The angularity wheel axle demonstration device of claim 1 wherein: a first through hole corresponding to the small circular ring (4) is formed in the center of the large circular ring (3), the small circular ring (4) is sleeved in the large circular ring (3) through the first through hole, a second through hole corresponding to the solid wheel shaft (5) is formed in the center of the small circular ring (4), and the small circular ring (4) is sleeved on the solid wheel shaft (5) through the second through hole.