CN203013061U - Exploring and demonstrating instrument for conditions of two-force equilibrium - Google Patents

Exploring and demonstrating instrument for conditions of two-force equilibrium Download PDF

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Publication number
CN203013061U
CN203013061U CN 201320046376 CN201320046376U CN203013061U CN 203013061 U CN203013061 U CN 203013061U CN 201320046376 CN201320046376 CN 201320046376 CN 201320046376 U CN201320046376 U CN 201320046376U CN 203013061 U CN203013061 U CN 203013061U
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CN
China
Prior art keywords
exploring
weight
conditions
stressed
guide rail
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Expired - Fee Related
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CN 201320046376
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Chinese (zh)
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师海满
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师海满
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Priority to CN 201320046376 priority Critical patent/CN203013061U/en
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Abstract

The utility model relates to an exploring and demonstrating instrument for conditions of two-force equilibrium. The exploring and demonstrating instrument for the conditions of two-force equilibrium includes a pedestal, a spring dynamometer I, a spring dynamometer II, a guide rail, an object under stress, a pull line and a hanging post. The spring dynamometer I is fixed on the pedestal. The object under stress is provided with a clamping groove and can move, rotate or stay static on the guide rail. The spring dynamometer II can be moved or hanged on the hanging post in an appropriate range. Compared with a traditional equipment, the exploring and demonstrating instrument for the conditions of two-force equilibrium provided by the utility model can be used for exploring the conditions of two-force equilibrium more directly, simply, conveniently and stably. And using frequency of experimental equipment can be reduced effectively, an experimental exploring process is simplified and the experimental exploring efficiency is improved.

Description

The condition of balance between two forces is probed into demonstrator
Technical field
The utility model relates to a kind of teaching aid, and the condition that relates in particular to a kind of balance between two forces is probed into demonstrator.
Background technology
At present, in the education activities of Middle School Physics for the condition of probing into balance between two forces, utilize traditional teaching aid dolly, hook code, fixed pulley, teapoy etc. to complete and probe into demonstration, although this mode can reach the purpose of teaching, but Preparatory work of experiment and complex operation, the experimentation less stable, under the factors such as inertia impacts experiment equipment fall in desktop even ground phenomena be difficult to avoid, happen occasionally, be unfavorable for that the student well tests founding of atmosphere.When especially demonstrating, dolly at horizontal in-plane moving, is not easy to the student and intuitively observes physical phenomenon, and the Experimental Research process is relatively long, poor continuity, and conventional efficient is lower.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of stable performance, easy and simple to handle, continuously directly perceived, can effectively simplify the Experimental Research process, improves the condition of the balance between two forces of Experimental Research efficient and probes into demonstrator.
For addressing the above problem, the condition of balance between two forces described in the utility model probe into demonstrator comprise base, weight beam 1., weight beam 2., guide rail, stressed object, bracing wire and hanging column, it is characterized in that:
Described weight beam 1., guide rail, hanging column be fixed on described base.
On described stressed object, draw-in groove is arranged, move on described guide rail, rotation or static.
This demonstrator be provided with described weight beam 1. with weight beam 2..
The utility model compared with prior art has the following advantages:
1, due to the utility model medi-spring dynamometer 1., guide rail, hanging column be fixed on base, therefore, improved the stability of experimental provision and experimental implementation, also makes experimental implementation easier, can effectively improve Experimental Research efficient.
2, owing on stressed object, draw-in groove being arranged in the utility model, move on guide rail, rotation or static, therefore, movement, rotation or the stationary state of stressed object are presented in perpendicular, facilitate student's motion state of observing stressed object directly perceived, can effectively reduce the factor such as stressed self-weight of object simultaneously to the impact of experimental data.
3, due to this demonstrator in the utility model be provided with weight beam 1. with weight beam 2., therefore, can intuitively demonstrate the size of two power; More traditional teaching aid dolly, hook code, fixed pulley, teapoy etc., can effectively simplify the Experimental Research process simultaneously, and Enhancement test is probed into the continuity of process, improves Experimental Research efficient.
Description of drawings
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
In figure: 1-base 2-weight beam is the 2. stressed object of 4-guide rail 5-of 3-weight beam 1.
6-bracing wire 7-hanging column
Fig. 2 is the structural representation of stressed object.
Embodiment
As shown in Figure 1, the condition of balance between two forces is probed into demonstrator, and this demonstrator comprises base 1, weight beam 1. 2, weight beam 2. 3, guide rail 4, stressed object 5, bracing wire 6 and hanging column 7.
Wherein, weight beam 1., guide rail, hanging column be fixed on base; Stressed object moves on described guide rail, rotation or static; 2. weight beam can move or hang on hanging column within the specific limits; Stressed object two ends are connected with weight beam by bracing wire.
As shown in Figure 2, stressed object is provided with draw-in groove.
Embodiment 1 probes into the equal and opposite in direction of the condition of balance between two forces
(1) this is probed into demonstrator and vertically place, make guide rail be in horizontality.
(2) 2. level slowly at the uniform velocity pulls the spring balance dynamometer to the right, and stressed object thereupon to the right; But as long as stressed object is in the uniform speed motion state, 1. weight beam always equates with weight beam registration 2..
(3) weight beam link is 2. hung on hanging column, mobile stressed object, need only weight beam 1. unequal with weight beam registration 2. after loosing one's grip to the left or to the right, and stressed object always can not keep stationary state; As long as stressed object remains static, 1. weight beam always equates with weight beam registration 2..
Embodiment 2 probes into the opposite direction of the condition of balance between two forces
(1) can be judged by the direction of weight beam pulling force, as long as stressed object remains static, the direction of pulling force is always opposite
Embodiment 3 probes into the acting on same straight line of condition of balance between two forces
(1) this is probed into demonstrator and vertically place, make guide rail be in horizontality, weight beam link is 2. hung on hanging column.
(2) twist stressed object, make bracing wire not on same straight line, although after loosing one's grip, the weight beam registration equates, stressed object always can not keep stationary state.
(3) as long as stressed object remains static, bracing wire is always on same straight line.

Claims (3)

1. the condition of balance between two forces is probed into demonstrator, it is characterized in that: this demonstrator comprises base (1), and weight beam is 2. (3), guide rail (4), stressed object (5), bracing wire (6) and hanging column (7) of (2), weight beam 1.; Described weight beam 1. (2), guide rail (4), hanging column (7) is fixed on described base (1).
2. the condition of balance between two forces as claimed in claim 1 is probed into demonstrator, it is characterized in that: on described stressed object (5), draw-in groove is arranged, make it in upper mobile, the rotation or static of described guide rail (4).
3. the condition of balance between two forces as claimed in claim 1 is probed into demonstrator, it is characterized in that: this demonstrator is provided with described weight beam 1. (2) and weight beam 2. (3).
CN 201320046376 2013-01-25 2013-01-25 Exploring and demonstrating instrument for conditions of two-force equilibrium Expired - Fee Related CN203013061U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320046376 CN203013061U (en) 2013-01-25 2013-01-25 Exploring and demonstrating instrument for conditions of two-force equilibrium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320046376 CN203013061U (en) 2013-01-25 2013-01-25 Exploring and demonstrating instrument for conditions of two-force equilibrium

Publications (1)

Publication Number Publication Date
CN203013061U true CN203013061U (en) 2013-06-19

Family

ID=48604633

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320046376 Expired - Fee Related CN203013061U (en) 2013-01-25 2013-01-25 Exploring and demonstrating instrument for conditions of two-force equilibrium

Country Status (1)

Country Link
CN (1) CN203013061U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106023734A (en) * 2016-07-02 2016-10-12 深圳市中幼国际教育科技有限公司 Balance force demonstration device for teaching

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106023734A (en) * 2016-07-02 2016-10-12 深圳市中幼国际教育科技有限公司 Balance force demonstration device for teaching

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130619

Termination date: 20140125

C17 Cessation of patent right