CN200941257Y - Force resolution demonstrator - Google Patents
Force resolution demonstrator Download PDFInfo
- Publication number
- CN200941257Y CN200941257Y CN 200620088712 CN200620088712U CN200941257Y CN 200941257 Y CN200941257 Y CN 200941257Y CN 200620088712 CN200620088712 CN 200620088712 CN 200620088712 U CN200620088712 U CN 200620088712U CN 200941257 Y CN200941257 Y CN 200941257Y
- Authority
- CN
- China
- Prior art keywords
- pole
- brace rod
- elastic membrane
- movable brace
- resolution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a demonstrator of force decomposition which comprises a holding pole, an elastic membrane, a movable strut, a connecting string and a hook code, wherein the holding pole has a continuous manger, at one side of which is fixed with the elastic membrane; the two ends of the connecting string are separately connected with the holding pole and the hook code; the movable strut is inserted into the continuous manger with one end connected with the middle of the connecting string and the other end supported at the elastic membrane. The utility model has simple structure and handheld use, can also be fixed at the holding pole of a base through a fixed column, reduces the large number of materials needed by the holding pole and the base and has convenient use and carrying.
Description
(1) technical field
The utility model relates to a kind of instruments used for education, particularly relates to a kind of resolution of force demonstration device.
(2) background technology
In present mechanics teaching, teacher generally adopts the method for mapping on blackboard when lecturing resolution of force, and this method is not easy to teacher's explanation, also is unfavorable for student's intelligential decomposition.
(3) summary of the invention
The technical problems to be solved in the utility model is: a kind of demonstration device of resolution of force intuitively is provided, makes it both help teacher's explanation, also help the student and understand, and can deepen student's memory.
In order to solve the problems of the technologies described above, the utility model comprises pole, elastic membrane, movable brace rod, connection cord and hook sign indicating number, groove is arranged on the pole, elastic membrane is fixed on the side that pole is gone up groove, the two ends of connection cord connect pole and hook sign indicating number respectively, movable brace rod is inserted in the groove, and movable brace rod one end is connected with the connection cord middle part, and the other end supports on elastic membrane.
Pole is fixing for convenience, and two fixed legs are arranged on the described pole.
For convenience being connected of pole and stay cord, on the described pole set collar is arranged, stay cord is connected on the set collar.
For convenience being connected of movable brace rod and connection cord, described movable brace rod upper end has circular hole, described connection cord to be divided into stay cord and outstanding the rope two sections, and stay cord is connected and fixed the circular hole of ring and movable brace rod upper end, the circular hole and the hook sign indicating number of outstanding rope connection movable brace rod upper end.
In order to obtain better demonstration effect, described stay cord is a bungee, and described elastic membrane is a rubber film.
The beneficial effects of the utility model are: the utility model can be demonstrated the stretching situation of change of component, displaying resolution of force that can be vivid; The utility model is simple in structure, can hand use, also can be fixed on the Square seat bracket by fixed leg, has reduced the needed lot of materials of support and base, and easy to use and carry.
(4) description of drawings
Fig. 1 is the utility model structural representation; Fig. 2 is the side view of part 1 among Fig. 1;
Among the figure: 1, pole, 2, elastic membrane, 3, movable brace rod, 4, set collar, 5, stay cord, 6, the hook sign indicating number, 7, fixed leg, 8, groove, 9, outstanding rope.
(5) embodiment
A kind of resolution of force demonstration device as shown in the figure, it comprises pole 1, elastic membrane 2, movable brace rod 3, connection cord and hook sign indicating number 6.There is an axial long groove 8 at the middle part of pole 1, and there is a set collar 4 upper end of pole 1, and respectively there is a fixed leg 7 at the both ends of support.Elastic membrane 2 is fixed on a side of groove 8 on the pole 1, and the fixedly employing of elastic membrane 2 and pole 1 is bonding, also can adopt other mode.Elastic membrane 2 and set collar were in the both sides of groove 8 in 4 minutes.There is circular hole the upper end of movable brace rod 3, and movable brace rod 3 is inserted in the groove 8, and movable brace rod 3 upper ends are connected with connection cord, and the other end supports on elastic membrane 2.Connection cord is divided into stay cord 5 and outstanding the rope 9 two sections, and stay cord 5 is connected and fixed the circular hole of ring 4 and movable brace rod 3 upper ends, and outstanding rope 9 connects the circular hole and the hook sign indicating number 6 of movable brace rod 3 upper ends.Stay cord 5 adopts bungee, and elastic membrane 2 adopts rubber film.
The utility model will hang the pulling force (size equal the gravity of hook sign indicating number 6) of rope on 9 vertical directions and resolve into pulling force on stay cord 5 vergence directions and movable brace rod 3 to the anchorage force in upper right side, can demonstrate resolution of force very visually like this.
Claims (5)
1. resolution of force demonstration device, it is characterized in that: comprise pole (1), elastic membrane (2), movable brace rod (3), connection cord and hook sign indicating number (6), groove (8) is arranged on the pole (1), elastic membrane (2) is fixed on the side that pole (1) is gone up groove (8), the two ends of connection cord connect pole (1) and hook sign indicating number (6) respectively, movable brace rod (3) is inserted in the groove (8), and movable brace rod (3) one ends are connected with the connection cord middle part, and the other end supports on elastic membrane (2).
2. resolution of force demonstration device according to claim 1 is characterized in that: two fixed legs (7) are arranged on the described pole (1).
3. resolution of force demonstration device according to claim 1 and 2 is characterized in that: set collar (4) is arranged on the described pole (1), and connection cord is connected on the set collar (4).
4. resolution of force demonstration device according to claim 3, it is characterized in that: there is circular hole described movable brace rod (3) upper end, described connection cord is divided into stay cord (5) and outstanding the rope (9) two sections, stay cord (5) is connected and fixed the circular hole of ring (4) and movable brace rod (3) upper end, and outstanding rope (9) connects the circular hole and the hook sign indicating number (6) of movable brace rod (3) upper end.
5. resolution of force demonstration device according to claim 3 is characterized in that: described stay cord (5) is a bungee, and described elastic membrane (2) is a rubber film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088712 CN200941257Y (en) | 2006-09-06 | 2006-09-06 | Force resolution demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088712 CN200941257Y (en) | 2006-09-06 | 2006-09-06 | Force resolution demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200941257Y true CN200941257Y (en) | 2007-08-29 |
Family
ID=38747434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620088712 Expired - Fee Related CN200941257Y (en) | 2006-09-06 | 2006-09-06 | Force resolution demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200941257Y (en) |
-
2006
- 2006-09-06 CN CN 200620088712 patent/CN200941257Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |