CN210443067U - Motion and friction force demonstration device for primary school science - Google Patents
Motion and friction force demonstration device for primary school science Download PDFInfo
- Publication number
- CN210443067U CN210443067U CN201921073792.XU CN201921073792U CN210443067U CN 210443067 U CN210443067 U CN 210443067U CN 201921073792 U CN201921073792 U CN 201921073792U CN 210443067 U CN210443067 U CN 210443067U
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- support plate
- fixedly connected
- plate
- extension board
- left support
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Abstract
The utility model discloses a motion and frictional force presentation device are used to primary school's science, including base and mounting panel, one side fixed mounting of mounting panel has two magnets, the last fixed surface of base is connected with the show board, turn right from left side on the front side lateral wall of show board fixed mounting have left extension board and right extension board in proper order, be provided with two diaphragms, two between left side extension board and the right extension board both ends difference fixed connection is on left extension board, right extension board about the diaphragm, the sliding opening has been seted up to one side of left side extension board, sliding insertion is equipped with the slide bar in the sliding opening, the slide bar is close to the one end fixedly connected with limiting plate of right extension board, the slide bar is kept away from the one end fixedly connected with arm-tie of right extension board, arm-tie and left extension board. The utility model discloses a difference that two second springs were stretched the degree can let children feel the influence of frictional force to the motion directly perceived, and knowledge more lively, the image of learning than from books.
Description
Technical Field
The utility model relates to a teaching aid technical field especially relates to motion and frictional force presentation device are used to primary school's science.
Background
Primary schools, which are schools in which people receive formal education at the initial stage, are important components of basic education. Therefore, in primary school education, students need to be infused with certain physical and chemical common knowledge, the knowledge of children is increased, and the thinking ability of children is developed.
When children are taught with physical knowledge, if the children are simply explained according to books and are not vivid enough, the children will have poor acceptance, and the best teaching effect and preset teaching target cannot be achieved.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: when children are taught with physical knowledge, if the children are simply explained according to books and are not vivid enough, the children are poor in acceptance degree, the best teaching effect and the preset teaching target cannot be achieved, and the motion and friction force demonstration device for the primary school science is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the motion and friction force demonstration device for the primary school science comprises a base and a mounting plate, wherein two magnets are fixedly mounted on one side of the mounting plate, a demonstration board is fixedly connected to the upper surface of the base, a left support plate and a right support plate are fixedly mounted on the side wall of the front side of the demonstration board from left to right in sequence, two transverse plates are arranged between the left support plate and the right support plate, the left ends and the right ends of the two transverse plates are respectively and fixedly connected to the left support plate and the right support plate, a sliding opening is formed in one side of the left support plate, a sliding rod is inserted in the sliding opening in a sliding manner, a limiting plate is fixedly connected to one end, close to the right support plate, of the sliding rod, a pulling plate is fixedly connected to one end, away from the right support plate, of the sliding rod is parallel to the left support plate, a first spring is sleeved on the sliding rod, one end of, the upper surfaces of the two transverse plates are respectively and slidably connected with a sliding block, one end, far away from the right support plate, of each sliding block is fixedly connected with a second spring, one end, far away from the right support plate, of each second spring is fixedly connected with a pull rope, one end, far away from the right support plate, of each pull rope penetrates through the left support plate and is fixedly connected onto the pull plate, a handle is fixedly mounted on one side, far away from the left support plate, of the pull plate, and two mounting openings matched with the two magnets are formed in one side, far away from the left support plate, of the.
Preferably, the upper surface of the base is provided with two placing grooves matched with the two magnets.
Preferably, the sliding blocks are iron blocks, and the roughness of the outer side walls of the two sliding blocks is set to be consistent.
Preferably, the smoothness of the upper surfaces of the two transverse plates is inconsistent.
Preferably, the stiffness coefficients of the two second springs are kept the same.
Preferably, the rear sides of the two transverse plates are fixedly connected with the side wall of the front side of the display plate.
The utility model has the advantages that: the teacher drives two sliders and slides respectively on two diaphragms through holding the handle and gently pulling the arm-tie to the left side, and this wherein because the difference of two diaphragm surface smoothness, difference can appear by the tensile degree of two second springs, can let the child feel directly perceivedly frictional force to the influence of motion from this, more lively, the image than the knowledge of learning from books.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of a motion and friction demonstration apparatus for primary school science according to the present invention;
fig. 2 is a schematic structural diagram of the motion and friction force demonstration apparatus for primary school science, which is provided by the utility model and is shown in embodiment 2.
In the figure: the display device comprises a base 1, a display board 2, a right supporting board 3, a left supporting board 4, a magnet 5, a mounting board 6, a mounting opening 7, a handle 8, a transverse board 9, a pulling rope 10, a sliding block 11, a sliding opening 12, a sliding rod 13, a first spring 14, a limiting board 15, a pulling board 16, a placing groove 17 and a second spring 18.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-2, the motion and friction force demonstration device for primary school science comprises a base 1 and a mounting plate 6, wherein two magnets 5 are fixedly mounted on one side of the mounting plate 6, a display plate 2 is fixedly connected to the upper surface of the base 1, a left support plate 4 and a right support plate 3 are fixedly mounted on the front side wall of the display plate 2 from left to right in sequence, two transverse plates 9 are arranged between the left support plate 4 and the right support plate 3, the rear sides of the two transverse plates 9 are fixedly connected with the front side wall of the display plate 2, the left and right ends of the two transverse plates 9 are respectively fixedly connected to the left support plate 4 and the right support plate 3, a sliding opening 12 is formed in one side of the left support plate 4, a sliding rod 13 is inserted in the sliding opening 12, a limit plate 15 is fixedly connected to one end of the sliding rod 13 close to the right support plate 3, a pulling plate 16 is fixedly connected to one end, the cover is equipped with first spring 14 on the slide bar 13, the one end fixed connection of first spring 14 is on limiting plate 15, the other end fixed connection of first spring 14 is on left extension board 4, the equal sliding connection of upper surface of two diaphragm 9 has slider 11, the equal fixedly connected with second spring 18 of one end that right extension board 3 was kept away from to two slider 11, the equal fixedly connected with stay cord 10 of one end that right extension board 3 was kept away from to two second springs 18, the one end that right extension board 3 was kept away from to two stay cords 10 all passes left extension board 4 fixed connection on arm-tie 16, one side fixed mounting that left extension board 4 was kept away from to arm-tie 16 has handle 8, two assorted installing ports 7 with two magnet 5 are seted up to one side that left extension board 4 was kept away from.
Two placing grooves 17 matched with the two magnets 5 are formed in the upper surface of the base 1, and accidental loss of the mounting plate 6 after the mounting plate is taken down is avoided.
The sliding blocks 11 are iron blocks, and the roughness of the outer side walls of the two sliding blocks 11 is set to be consistent.
The smoothness of the upper surfaces of the two cross plates 9 is not uniform.
The stiffness coefficients of the two second springs 18 are kept uniform.
In embodiment 1, the teacher can take down the mounting plate 6 from the right support plate 3, so that the magnet 5 is also taken out from the mounting opening 7, at this time, the sliding blocks 11 lose the attraction of the magnet 5 to them, and move, and then the teacher pulls the pulling plate 16 gently towards the left side by holding the handle 8 to drive the two sliding blocks 11 to slide on the two transverse plates 9 respectively, wherein due to the difference of the surface smoothness of the two transverse plates 9, the degree of stretching of the two second springs 18 will be different, so that children can intuitively feel the influence of the friction on the movement, which is more vivid and vivid than the knowledge learned from books.
In embodiment 2, by placing the mounting plate 6 on the base 1, the two magnets 5 are respectively inserted into the two placing grooves 17, which prevents the mounting plate 6 from being accidentally lost after being removed.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. Motion and friction force demonstration device for primary school science, comprising a base (1) and a mounting plate (6), and is characterized in that two magnets (5) are fixedly mounted on one side of the mounting plate (6), a display plate (2) is fixedly connected to the upper surface of the base (1), a left support plate (4) and a right support plate (3) are sequentially and fixedly mounted on the side wall of the front side of the display plate (2) from left to right, two transverse plates (9) are arranged between the left support plate (4) and the right support plate (3), the left end and the right end of each transverse plate (9) are respectively and fixedly connected to the left support plate (4) and the right support plate (3), a sliding opening (12) is formed in one side of the left support plate (4), a sliding rod (13) is slidably inserted in the sliding opening (12), and a limiting plate (15) is fixedly connected to one end of the sliding rod (13) close to the right, one end, far away from the right support plate (3), of each sliding rod (13) is fixedly connected with a pulling plate (16), the pulling plates (16) and the left support plate (4) are arranged in parallel, each sliding rod (13) is sleeved with a first spring (14), one end of each first spring (14) is fixedly connected to a limiting plate (15), the other end of each first spring (14) is fixedly connected to the left support plate (4), the upper surfaces of the two transverse plates (9) are both slidably connected with sliders (11), one ends, far away from the right support plate (3), of the two sliders (11) are both fixedly connected with second springs (18), one ends, far away from the right support plate (3), of the two second springs (18) are both fixedly connected with pulling ropes (10), one ends, far away from the right support plate (3), of the two pulling ropes (10) are both penetrating through the left support plate (4) and fixedly connected to the pulling plates (16), one side, far away from the left support plate (4), of each pulling plate (16), and one side of the right support plate (3) far away from the left support plate (4) is provided with two mounting openings (7) matched with the two magnets (5).
2. A movement and friction demonstration device for primary school science according to claim 1 characterized in that the upper surface of the base (1) is provided with two placing grooves (17) matching with the two magnets (5).
3. A movement and friction demonstration apparatus for primary school science according to claim 1 wherein the sliding blocks (11) are iron blocks and the roughness of the outer side walls of the two sliding blocks (11) is set to be consistent.
4. A movement and friction demonstration device for elementary school science according to claim 1 characterized in that the smoothness of the upper surface of both of said transversal plates (9) is not uniform.
5. A sport and friction demonstration device according to claim 1 characterised in that the stiffness coefficients of said two second springs (18) are kept identical.
6. A movement and friction demonstration apparatus for primary school science according to claim 1 characterized in that the rear sides of both of the horizontal plates (9) are fixedly connected with the front side wall of the demonstration board (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921073792.XU CN210443067U (en) | 2019-07-10 | 2019-07-10 | Motion and friction force demonstration device for primary school science |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921073792.XU CN210443067U (en) | 2019-07-10 | 2019-07-10 | Motion and friction force demonstration device for primary school science |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210443067U true CN210443067U (en) | 2020-05-01 |
Family
ID=70405354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921073792.XU Expired - Fee Related CN210443067U (en) | 2019-07-10 | 2019-07-10 | Motion and friction force demonstration device for primary school science |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210443067U (en) |
-
2019
- 2019-07-10 CN CN201921073792.XU patent/CN210443067U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200501 Termination date: 20210710 |