CN209993204U - Magnetic field comprehensive experiment table - Google Patents
Magnetic field comprehensive experiment table Download PDFInfo
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- CN209993204U CN209993204U CN201821806307.0U CN201821806307U CN209993204U CN 209993204 U CN209993204 U CN 209993204U CN 201821806307 U CN201821806307 U CN 201821806307U CN 209993204 U CN209993204 U CN 209993204U
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Abstract
The utility model provides a magnetic field comprehensive experiment platform, belongs to physics experimental apparatus field, its characterized in that includes the plane stage body, goes up and down the stand, goes up and down the support frame and cyclic annular hard magnet, at the vertical lift stand that sets up in the middle part of the plane stage body, at least a week magnetic compass of annular array around the lift stand, the lift stand is the square tube form, left and right vertical bar slide opening is seted up to the left and right both sides of lift stand, the lift support frame includes "∩" shape inner sliding column, the inner sliding column sets up in the lift stand, cyclic annular hard magnet can the suit on the lift stand and can place on left and right ka tai, the utility model discloses not only can synthesize demonstration two kinds of basic physics magnetism experiments at least, the device design is succinct moreover, the demonstration is convenient, suitable popularization in the industry.
Description
Technical Field
The utility model belongs to physics experiment apparatus field, concretely relates to magnetic field comprehensive experiment device.
Background
In high school physics, many display experiments related to magnetic field properties, such as the physical properties of magnets, experiments for changing electrodes by electrifying, and the like, the basic experiments need trivial equipment, complex assembly process and difficult storage; teachers need to carry a large number of fragmentary instrument devices to a classroom before classroom demonstration, and need to spend a long time for inserting and assembling, so that precious classroom time is seriously occupied. In addition, the traditional scattered and disordered experimental props can bring difficulty to students to observe and learn the magnetic theory knowledge by themselves.
In view of this, the applicant has designed the device, not only can synthesize demonstration two at least basic physics magnetism experiments, but also the device design is succinct, the demonstration is convenient, is fit for popularizing in the industry.
Disclosure of Invention
The utility model aims to solve the technical problem that a magnetic field comprehensive experiment platform is provided, can assist the experiment of implementation and demonstration magnetic force physical properties.
In order to solve the technical problem, the technical scheme of the utility model is that: the magnetic field comprehensive experiment table is characterized by comprising a plane table body, a lifting upright post, a lifting support frame and an annular hard magnet, wherein the lifting upright post is vertically arranged in the middle of the plane table body, at least one circle of magnetic compass is annularly arrayed around the lifting upright post, the lifting upright post is in a square barrel shape, left and right longitudinal strip-shaped sliding holes are formed in the left and right sides of the lifting upright post, longitudinal first and second toothed clamping strips are respectively arranged on the inner wall of the lifting upright post on the two sides of the left longitudinal strip-shaped sliding hole, and longitudinal third and fourth toothed clamping strips are respectively arranged on the inner wall of the lifting upright post on the two sides of the right longitudinal strip-shaped sliding hole; namely, the first, the second, the third and the fourth tooth-shaped clamping strips are respectively and longitudinally arranged at four corners inside the lifting upright post.
The lifting support frame comprises an ∩ -shaped inner sliding column, wherein the inner sliding column is arranged in the lifting upright column, a left clamping table and a right clamping table are respectively horizontally arranged on the left side and the right side of the inner sliding column, and respectively extend out of a left longitudinal strip-shaped sliding hole and a right longitudinal strip-shaped sliding hole;
the annular hard magnet can be sleeved on the lifting upright post and can be placed on the left clamping table and the right clamping table.
Preferably, the wire connector also comprises an annular soft magnet, wherein a spiral winding coil is arranged on the annular soft magnet, a left jointing clamp is arranged at the front end of the spiral winding coil, and a right jointing clamp is arranged at the rear end of the spiral winding coil; a hollow circuit cavity is arranged in the plane table body, a battery bin, a positive electrode connecting wire, a negative electrode connecting wire, a first connecting wire, a second connecting wire and an electrode commutator are arranged in the hollow circuit cavity, the positive electrode of the battery bin is connected with the front end of the positive electrode connecting wire, and the rear end of the positive electrode connecting wire is connected with a first contact; the negative electrode of the battery bin is connected with the front end of the negative electrode wiring, and the rear end of the negative electrode wiring is connected with the second contact; the front end of the first connection wire is connected with the third contact, and the rear end of the first connection wire is connected with the left upper connection wire ring; the front end of the second wire is connected with the fourth contact, and the rear end of the second wire is connected with the upper right wire connecting ring; the first, second, third and fourth contacts respectively surround and are arranged at the upper part, the lower part, the left part and the right part of the electrode commutator; the left upper wiring ring and the right upper wiring ring are respectively arranged on the upper surface of the plane table body and positioned on the left side and the right side of the lifting upright post; the left and right jointing clamps are omega-shaped metal clamps, and can be respectively connected with a left and a right upper jointing ring in an inserting manner;
the electrode commutator comprises a central rotating shaft, a rotating ring is sleeved on the central rotating shaft, the middle parts of a right-angled L-shaped first metal wiring terminal and a right-angled L-shaped second metal wiring terminal are symmetrically fixed on the rotating ring, and a first rotating contact block and a second rotating contact block are respectively arranged at two ends of the first metal wiring terminal; a third rotating contact block and a fourth rotating contact block are respectively arranged at two ends of the second metal binding post; the reversing control knob is arranged in the platform body through a reversing shaft, the reversing shaft is parallel to the central rotating shaft, and a reversing belt is sleeved on the central rotating shaft and the rotating ring; when the reversing control knob is rotated, the rotating ring can be driven to rotate through the reversing belt;
when the reversing control knob rotates to a horizontal position, the first rotating contact block and the second rotating contact block are respectively communicated with the first contact and the third contact, the third rotating contact block and the fourth rotating contact block are respectively communicated with the second contact and the fourth contact, and at the moment, the front end and the rear end of the spiral winding coil are respectively connected with the positive electrode and the negative electrode of the battery compartment; when the reversing control knob rotates clockwise to a vertical position, the first rotating contact block and the second rotating contact block are respectively communicated with the fourth contact and the first contact, the third rotating contact block and the fourth rotating contact block are respectively communicated with the third contact and the second contact, and at the moment, the front end and the rear end of the spiral winding coil are respectively connected with the negative pole and the positive pole of the battery compartment.
Preferably, the lifting device further comprises a secondary annular hard magnet, and the secondary annular hard magnet and the annular hard magnet can be stacked and sleeved on the lifting upright.
Preferably, the magnetic compass comprises an installation vertical rod and a rhombus magnetic needle, the lower end of the installation vertical rod is vertically fixed on the plane table body, and the middle part of the rhombus magnetic needle is hinged and fixed at the upper end of the installation vertical rod.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses not only can synthesize demonstration kind basic physics magnetism experiment, the device design is succinct moreover, the demonstration is convenient, suits to promote in the trade and popularize.
Drawings
Fig. 1 is a schematic structural diagram of the present invention in the first embodiment (the ring-shaped hard magnet is at the upper limit);
fig. 2 is a schematic structural diagram of the present invention in the first embodiment (the ring-shaped hard magnet is at the lower limit);
FIG. 3 is a longitudinal cross-sectional view of the lifting column;
FIG. 4 is a schematic view of the A-direction structure of FIG. 3;
FIG. 5 is a schematic structural view of the elevating support frame;
FIG. 6 is a schematic view of the installation and matching structure of the lifting support frame and the lifting upright post;
FIG. 7 is a schematic structural diagram of the present invention in the second embodiment;
FIG. 8 is a schematic structural diagram of the present invention in the third embodiment;
FIG. 9 is a top view of FIG. 8;
FIG. 10 is a schematic view of the wiring state of the electrode commutator (when the commutation control knob is rotated to the horizontal position);
FIG. 11 is a schematic of the wiring state of the electrode commutator (when the commutation control knob is rotated counterclockwise to a vertical position);
in the figure: 1. a ring-shaped hard magnet; 2. lifting the support frame; 3. lifting the upright post; 4. a diamond magnetic needle; 5. installing a vertical rod; 6. a planar table body; 7. a left longitudinal strip-shaped slide hole; 8. a right longitudinal strip-shaped slide hole; 9. a second toothed clamping bar; 10. a third tooth-shaped clamping strip; 11. a first tooth-shaped clamping strip; 12. a left clamping table; 13. a first support bar; 14. an inner sliding column; 15. a fourth strut; 16. a right clamping table; 17. a second support bar; 18. a third support bar; 19. a fourth tooth-shaped clamping strip; 20. a secondary ring-shaped hard magnet; 21. an annular soft magnet; 22. a helically wound coil; 23. left wiring; 24. the upper left wiring ring; 25. a negative electrode wiring; 26. a battery compartment; 27. positive electrode wiring; 28. a first wiring; 29. an electrode commutator; 30. a second wiring; 31. a reversing belt; 32. a reversing control knob; 33. an upper right wiring ring; 34. a right connection wire; 35. a central rotating shaft; 36. a third contact; 37. a third rotating contact block; 38. a second metal terminal; 39. a fourth rotating contact block; 40. a second contact; 41. a first rotating contact block; 42. a fourth contact; 43. a second wiring; 44. a first metal terminal; 45. a first metal terminal; 46. a second rotating contact block; 47. a first contact.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1 and 2, a magnetic field combined test platform, including the plane stage body, lift stand, lift support frame and cyclic annular hard magnet, at the vertical lift stand that sets up in middle part of the plane stage body, at least a week magnetic compass of annular array around the lift stand, the magnetic compass is including installation pole setting and rhombus magnetic needle, the lower extreme of installation pole setting is vertical to be fixed on the plane stage body and the middle part of rhombus magnetic needle is articulated to be fixed in the upper end of installation pole setting.
As shown in fig. 3 and 4, the lifting column is in a square tube shape, left and right longitudinal strip-shaped sliding holes are formed in the left and right sides of the lifting column, longitudinal first and second toothed clamping strips are respectively arranged on the inner walls of the lifting column on the two sides of the left longitudinal strip-shaped sliding hole, and longitudinal third and fourth toothed clamping strips are respectively arranged on the inner walls of the lifting column on the two sides of the right longitudinal strip-shaped sliding hole.
As shown in fig. 5, the lifting support frame comprises an ∩ -shaped inner sliding column, the inner sliding column is arranged in the lifting upright column, a left clamping table and a right clamping table are respectively horizontally arranged on the left side and the right side of the inner sliding column and respectively extend out of a left longitudinal strip-shaped sliding hole and a right longitudinal strip-shaped sliding hole, a first supporting rod and a second supporting rod are respectively arranged at the front end and the rear end of the left side of the lower portion of the inner sliding column, a third supporting rod and a fourth supporting rod are respectively arranged at the front end and the rear end of the right side of the lower portion of the inner sliding column, as shown in fig. 6, the first supporting rod and the second supporting rod can be respectively clamped and fixed in tooth grooves of the first tooth-shaped clamping strip and the third supporting rod and the fourth supporting rod can be respectively clamped and fixed in tooth grooves of the third tooth.
This device can assist and carry out the oersted experiment. In practical use, firstly, the annular hard magnet is sleeved on the lifting upright post and can be placed on the left clamping table and the right clamping table. Then, the left clamping table and the right clamping table are manually and relatively extruded towards the inside of the lifting upright post, and the first support rod, the second support rod, the third support rod and the fourth support rod can be separated from the first tooth-shaped clamping strip, the second tooth-shaped clamping strip, the third tooth-shaped clamping strip and the fourth tooth-shaped clamping strip at the moment and can integrally move the lifting support frame downwards. When the magnetic needle starts to obviously turn when the magnetic needle moves to the diamond shape, the left clamping table and the right clamping table are loosened, the two side walls of the lower end of the inner sliding column are restored to be in a vertical parallel state, and the first support rod, the second support rod, the third support rod and the fourth support rod can be clamped in tooth grooves of the first tooth-shaped clamping strip, the second tooth-shaped clamping strip, the third tooth-shaped clamping strip and the fourth tooth-shaped clamping strip, so that the position of the lifting support frame on the lifting column. At this time, the turning condition of the magnetic compass can be observed, and the trend and the outline of the magnetic induction line around the magnet can be further described. The annular hard magnet moves up and down along the lifting upright post, and the turntable of the diamond pointer is observed, so that the influence of the distance on the magnetic force can be displayed.
Example two
As shown in fig. 7, in this embodiment, the lifting column further includes a secondary ring-shaped hard magnet, and both the secondary ring-shaped hard magnet and the ring-shaped hard magnet can be stacked and sleeved on the lifting column. The auxiliary ring-shaped hard magnet can be arranged in the same specification as the ring-shaped hard magnet, when the auxiliary ring-shaped hard magnet and the ring-shaped hard magnet are sleeved on the lifting upright post in a homopolar and opposite mode, the auxiliary ring-shaped hard magnet and the ring-shaped hard magnet generate a repulsive reaction, and the auxiliary ring-shaped hard magnet is suspended above the ring-shaped hard magnet.
This embodiment can show that the magnet divides into two poles, the N utmost point and the S utmost point. The same poles repel each other, and the opposite poles attract each other. The mutually attracting or repelling forces are magnetic forces, which are generated in a magnetic field, and faraday introduces the concept of magnetic induction lines for the purpose of explaining the magnetic field.
The magnetic induction lines are closed curves that are artificially defined and do not exist in practice. Inside the magnet from S to N and outside from N to S. The magnetic induction lines are attractive force when in the same direction and repulsive force when in the opposite direction, and the magnet tends to rotate when having a certain included angle and tends to be consistent in the direction of the magnetic induction lines. In general, magnetic induction lines are not objective, but are only concepts introduced for studying the force in a magnetic field and the phenomenon of electromagnetic induction. The concept of magnetic induction lines can be demonstrated by the device structure and method of use of embodiment one.
EXAMPLE III
As shown in fig. 8 and 9, in this embodiment, the wire connector further includes a ring-shaped soft magnet, a spiral winding coil is disposed on the ring-shaped soft magnet, a left binding clip is disposed at a front end of the spiral winding coil, and a right binding clip is disposed at a rear end of the spiral winding coil; a hollow circuit cavity is arranged in the plane table body, a battery bin, a positive electrode connecting wire, a negative electrode connecting wire, a first connecting wire, a second connecting wire and an electrode commutator are arranged in the hollow circuit cavity, the positive electrode of the battery bin is connected with the front end of the positive electrode connecting wire, and the rear end of the positive electrode connecting wire is connected with a first contact; the negative electrode of the battery bin is connected with the front end of the negative electrode wiring, and the rear end of the negative electrode wiring is connected with the second contact; the front end of the first connection wire is connected with the third contact, and the rear end of the first connection wire is connected with the left upper connection wire ring; the front end of the second wire is connected with the fourth contact, and the rear end of the second wire is connected with the upper right wire connecting ring; the first, second, third and fourth contacts respectively surround and are arranged at the upper part, the lower part, the left part and the right part of the electrode commutator; the left upper wiring ring and the right upper wiring ring are respectively arranged on the upper surface of the plane table body and positioned on the left side and the right side of the lifting upright post; the left and right jointing clamps are omega-shaped metal clamps, and can be respectively connected with the left and right upper jointing rings in a plug-in mounting manner.
As shown in fig. 10 and 11, the electrode commutator includes a central rotating shaft, a rotating ring is sleeved on the central rotating shaft, the rotating ring is symmetrically fixed with the middle parts of a right-angled L-shaped first metal binding post and a right-angled L-shaped second metal binding post, and a first rotating contact block and a second rotating contact block are respectively arranged at two ends of the first metal binding post; a third rotating contact block and a fourth rotating contact block are respectively arranged at two ends of the second metal binding post; the reversing control knob is arranged in the platform body through a reversing shaft, the reversing shaft is parallel to the central rotating shaft, and a reversing belt is sleeved on the central rotating shaft and the rotating ring; when the reversing control knob is rotated, the rotating ring can be driven to rotate through the reversing belt.
The present embodiment can be used to demonstrate the experiment of the change of the magnetic pole of the electromagnet. The specific display process is as follows:
as shown in fig. 10, when the reversing control knob is rotated to the horizontal position, the first rotating contact block and the second rotating contact block are respectively connected with the first contact and the third contact, the third rotating contact block and the fourth rotating contact block are respectively connected with the second contact and the fourth contact, and at this time, the front end and the rear end of the spiral winding coil are respectively connected with the positive pole and the negative pole of the battery compartment. At the moment, the turning condition of the magnetic compass is observed, and the trend and the outline of the magnetic induction line around the recording magnet are further described.
As shown in fig. 11, when the reversing control knob is rotated clockwise to a vertical position, the first rotating contact block and the second rotating contact block are respectively connected with the fourth contact and the first contact, the third rotating contact block and the fourth rotating contact block are respectively connected with the third contact and the second contact, and at this time, the front end and the rear end of the spiral winding coil are respectively connected with the negative electrode and the positive electrode of the battery compartment. At the moment, the turning condition of the magnetic compass is observed, and the trend of the magnetic induction lines around the magnet is recorded.
This experiment can demonstrate that: the change of the south and north poles of the electromagnet is related to the directions of the positive pole and the negative pole of the battery connected with the two ends of the lead, the positive pole and the negative pole of the battery connected with the two ends of the lead are changed, and the south and north poles of the electromagnet are also changed.
The hard magnet and the soft magnet of the utility model are defined as follows: the magnetic properties of the iron rod are easily lost after magnetization, and the magnet is called a soft magnet. After the steel bar is magnetized, the magnetism can be kept for a long time, and the steel bar is called a hard magnet or a permanent magnet.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. The technical solution of the present invention is not to be departed from, and any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (4)
1. A magnetic field comprehensive experiment table is characterized by comprising a plane table body, a lifting stand column, a lifting support frame and an annular hard magnet, wherein the lifting stand column is vertically arranged in the middle of the plane table body, at least one circle of magnetic compass is annularly arrayed around the lifting stand column, the lifting stand column is in a square barrel shape, left and right longitudinal strip-shaped slide holes are formed in the left and right sides of the lifting stand column, longitudinal first and second toothed clamping strips are respectively arranged on the inner wall of the lifting stand column on the two sides of the left longitudinal strip-shaped slide hole, and longitudinal third and fourth toothed clamping strips are respectively arranged on the inner wall of the lifting stand column on the two sides of the right longitudinal strip-shaped slide hole;
the lifting support frame comprises an ∩ -shaped inner sliding column, wherein the inner sliding column is arranged in the lifting upright column, a left clamping table and a right clamping table are respectively horizontally arranged on the left side and the right side of the inner sliding column, and respectively extend out of a left longitudinal strip-shaped sliding hole and a right longitudinal strip-shaped sliding hole;
the annular hard magnet can be sleeved on the lifting upright post and can be placed on the left clamping table and the right clamping table.
2. A magnetic field comprehensive experiment table according to claim 1, characterized in that: the wire connector also comprises an annular soft magnet, wherein a spiral winding coil is arranged on the annular soft magnet, a left wiring clamp is arranged at the front end of the spiral winding coil, and a right wiring clamp is arranged at the rear end of the spiral winding coil; a hollow circuit cavity is arranged in the plane table body, a battery bin, a positive electrode connecting wire, a negative electrode connecting wire, a first connecting wire, a second connecting wire and an electrode commutator are arranged in the hollow circuit cavity, the positive electrode of the battery bin is connected with the front end of the positive electrode connecting wire, and the rear end of the positive electrode connecting wire is connected with a first contact; the negative electrode of the battery bin is connected with the front end of the negative electrode wiring, and the rear end of the negative electrode wiring is connected with the second contact; the front end of the first connection wire is connected with the third contact, and the rear end of the first connection wire is connected with the left upper connection wire ring; the front end of the second wire is connected with the fourth contact, and the rear end of the second wire is connected with the upper right wire connecting ring; the first, second, third and fourth contacts respectively surround and are arranged at the upper part, the lower part, the left part and the right part of the electrode commutator; the left upper wiring ring and the right upper wiring ring are respectively arranged on the upper surface of the plane table body and positioned on the left side and the right side of the lifting upright post; the left and right jointing clamps are omega-shaped metal clamps, and can be respectively connected with a left and a right upper jointing ring in an inserting manner;
the electrode commutator comprises a central rotating shaft, a rotating ring is sleeved on the central rotating shaft, the middle parts of a right-angled L-shaped first metal wiring terminal and a right-angled L-shaped second metal wiring terminal are symmetrically fixed on the rotating ring, and a first rotating contact block and a second rotating contact block are respectively arranged at two ends of the first metal wiring terminal; a third rotating contact block and a fourth rotating contact block are respectively arranged at two ends of the second metal binding post; the reversing control knob is arranged in the plane platform body through a reversing shaft, and the reversing shaft is parallel to the central rotating shaft; a driven belt pulley is sleeved on the central rotating shaft, a driving belt pulley is sleeved on the reversing shaft, and a reversing belt is sleeved on the driving belt pulley and the driven belt pulley; when the reversing control knob is rotated, the rotating ring can be driven to rotate through the reversing belt;
when the reversing control knob rotates to a horizontal position, the first rotating contact block and the second rotating contact block are respectively communicated with the first contact and the third contact, the third rotating contact block and the fourth rotating contact block are respectively communicated with the second contact and the fourth contact, and at the moment, the front end and the rear end of the spiral winding coil are respectively connected with the positive electrode and the negative electrode of the battery compartment; when the reversing control knob rotates clockwise to a vertical position, the first rotating contact block and the second rotating contact block are respectively communicated with the fourth contact and the first contact, the third rotating contact block and the fourth rotating contact block are respectively communicated with the third contact and the second contact, and at the moment, the front end and the rear end of the spiral winding coil are respectively connected with the negative pole and the positive pole of the battery compartment.
3. A magnetic field comprehensive experiment table according to claim 2, characterized in that: still include vice annular hard magnet, vice annular hard magnet and annular hard magnet homoenergetic pile suit are on the lift stand.
4. A magnetic field comprehensive experiment table according to claim 3, characterized in that: the magnetic compass comprises an installation vertical rod and a rhombic magnetic needle, wherein the lower end of the installation vertical rod is vertically fixed on the plane table body, and the middle part of the rhombic magnetic needle is hinged and fixed at the upper end of the installation vertical rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821806307.0U CN209993204U (en) | 2018-11-05 | 2018-11-05 | Magnetic field comprehensive experiment table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821806307.0U CN209993204U (en) | 2018-11-05 | 2018-11-05 | Magnetic field comprehensive experiment table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209993204U true CN209993204U (en) | 2020-01-24 |
Family
ID=69286712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821806307.0U Expired - Fee Related CN209993204U (en) | 2018-11-05 | 2018-11-05 | Magnetic field comprehensive experiment table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209993204U (en) |
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2018
- 2018-11-05 CN CN201821806307.0U patent/CN209993204U/en not_active Expired - Fee Related
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Granted publication date: 20200124 Termination date: 20201105 |