CN215374151U - Balance for student physical experiment - Google Patents
Balance for student physical experiment Download PDFInfo
- Publication number
- CN215374151U CN215374151U CN202121492801.6U CN202121492801U CN215374151U CN 215374151 U CN215374151 U CN 215374151U CN 202121492801 U CN202121492801 U CN 202121492801U CN 215374151 U CN215374151 U CN 215374151U
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- balance
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- student
- rod
- locking knob
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- 238000002474 experimental method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 abstract description 5
- 210000000078 claw Anatomy 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000004452 microanalysis Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a balance for student physical experiments, which comprises a base, wherein a balance rod is fixedly arranged on the upper surface of the base close to the center, a cross beam is movably arranged on the front surface of the balance rod, limiting connecting pieces are movably arranged on the outer surfaces of the cross beam close to two ends, a limiting sleeve is fixedly arranged under the limiting connecting pieces, a rotating rod is arranged on one side of the limiting sleeve and positioned on the outer surface of the base in a threaded mode, a sucking disc is fixedly arranged on the lower surface of the rotating rod, an index plate is fixedly arranged at the upper end of the balance rod, a scale is fixedly arranged on the front surface of the cross beam, and a vernier is movably arranged on the outer surface of the scale. The balance for student physical experiments can solve the problems that the existing equipment is lack of a fixed structure and is easy to damage, and the problems that each student cannot clearly read by a traditional reading method and errors are easy to generate.
Description
Technical Field
The utility model relates to the field of balances, in particular to a balance for a student physical experiment.
Background
The balance is an equiarm lever, it is an instrument to measure the quality of the object, it is made according to the lever principle, there is a small disc at both ends of the lever respectively, one end puts the weight, another end puts the object to be weighed, the centre of the lever is equipped with the pointer, when both ends are balanced, the quality (weight) of both ends is equal, modern balance, more and more accurate, more and more sensitive, the kind is more and more, we know, there are ordinary balance, analytical balance, there are constant analytical balance, microanalysis balance, half microanalysis balance; the balance for the current student physics experiments has certain drawback when using, like current balance for the student physics experiments, when reading the scale on the graduated disk, carry out the reading through the pointer, and there is certain distance between pointer and the graduated disk, this must look over the pointer when just leading to the reading, the student is all a set of for several people in the physics experiment usually, this kind of traditional reading method can not make every student all clear carry out the reading, and produce the error easily, when several students are a set of in addition, the people are many hands miscellaneous, touch easily carelessly, and current equipment lacks fixed knot again, cause equipment to damage easily.
Disclosure of Invention
The utility model mainly aims to provide a balance for student physical experiments, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a balance for student physical experiments comprises a base, wherein a balance rod is fixedly arranged on the upper surface of the base close to a central position, a cross beam is movably arranged on the front surface of the balance rod, limit connecting pieces are movably arranged on the outer surface of the cross beam close to two end positions, a limit sleeve is fixedly arranged under the limit connecting pieces, one side of the limit sleeve is positioned on the outer surface of the base and is provided with a rotary rod through threads, a sucking disc is fixedly arranged on the lower surface of the rotary rod, a dividing disc is fixedly arranged at the upper end of the balance rod, a scale is fixedly arranged on the front surface of the cross beam, a sliding weight is movably arranged on the outer surface of the scale, a mounting seat is fixedly arranged on the front surface of the balance rod close to the dividing disc, a battery is fixedly arranged on the upper surface of the mounting seat, a first locking knob is arranged on one side of the mounting seat through threads, and a bearing is movably arranged at one end of the first locking knob, the bearing inner ring part is fixedly provided with a clamping jaw, the surface of one side of the clamping jaw is clamped with an European laser diode, and the surface of the other side of the mounting seat is provided with a second locking knob in a threaded manner.
Preferably, a groove is formed in the position, close to the center, of the lower surface of the base, and a threaded hole is formed in the bottom surface of the groove.
Preferably, the two ends of the cross beam are fixedly provided with adjusting screw rods, the outer surface of each adjusting screw rod is provided with a balance nut in a threaded manner, the upper surface of the cross beam is fixedly provided with two trays close to the two ends, and the number of the trays is two.
Preferably, the outer surface of the rotating rod is provided with a thread at a position close to the lower end, and the rotating rod is in threaded connection with the thread hole.
Preferably, an inner rod is movably arranged in the limiting sleeve, and the lower surface of the inner rod is fixedly connected with the lower surface of the limiting connecting piece.
Preferably, the first locking knob and the second locking knob are identical in structure.
Compared with the prior art, the utility model has the following beneficial effects:
in the utility model, through the arranged rotating rod, the rotating rod is rotated, under the pushing of the screw thread, the screw thread end of the rotating rod passes through the screw thread hole, at the moment, the rotating rod is pressed downwards, the sucking disc sucks the table top, the base is fixed on the table top through the rotating rod, thereby solving the problem that the prior equipment is lack of a fixing structure and is easy to cause equipment damage, then the leveling step is required to be carried out, through the arranged mounting seat, the numerical value of the dividing disc needs to be read during leveling, during reading, the European laser diode is started to irradiate the European laser diode on the dividing disc, then the first locking knob or the second locking knob is rotated, under the pushing of the screw thread, the clamping claw fixing equipment is arranged, the other end of the clamping claw is connected with the bearing inner ring, when the first locking knob or the second locking knob is rotated, the clamping claw is not influenced by the rotating force, and students can see the I-shaped laser emitted by the European laser diode from all angles, therefore, the problem that the traditional reading method cannot enable each student to clearly read and errors are easy to generate is solved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a balance for student physical experiment according to the utility model;
FIG. 2 is a schematic diagram of a base structure of a balance for student physical experiment according to the utility model;
FIG. 3 is a schematic structural diagram of a mounting seat of the balance for student physical experiment according to the utility model;
fig. 4 is an enlarged view of a balance for student physical experiment at a in fig. 3 according to the present invention.
In the figure: 1. a base; 101. a groove; 2. a limiting connecting piece; 3. a cross beam; 301. a balance nut; 302. a tray; 4. a limiting sleeve; 5. rotating the rod; 501. a suction cup; 6. a balancing pole; 601. an index plate; 7. a mounting seat; 701. a battery; 702. a first locking knob; 703. a bearing; 704. a gripper jaw; 705. a second locking knob; 706. an European laser diode.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
As shown in fig. 1-4, a balance for student physical experiments comprises a base 1, a balance rod 6 is fixedly installed on the upper surface of the base 1 near the center, a cross beam 3 is movably installed on the front surface of the balance rod 6, a limit connecting piece 2 is movably installed on the outer surface of the cross beam 3 near the two ends, a limit sleeve 4 is fixedly installed under the limit connecting piece 2, a rotary rod 5 is installed on one side of the limit sleeve 4 on the outer surface of the base 1 through screw threads, a sucking disc 501 is fixedly installed on the lower surface of the rotary rod 5, an index plate 601 is fixedly installed on the upper end of the balance rod 6, a scale is fixedly installed on the front surface of the cross beam 3, a vernier is movably installed on the outer surface of the scale, a mounting seat 7 is fixedly installed on the front surface of the balance rod 6 near the index plate 601, a battery 701 is fixedly installed on the upper surface of the mounting seat 7, a first locking knob 702 is installed on the surface of one side of the mounting seat 7 through screw threads, and a bearing 703 is movably installed at one end of the first locking knob 702, a clamping claw 704 is fixedly arranged on the inner ring part of the bearing 703, an Euro laser diode 706 is clamped and arranged on the surface of one side of the clamping claw 704, a second locking knob 705 is arranged on the surface of the other side of the mounting seat 7 in a threaded manner, a rotating rod 5 is rotated, the threaded end of the rotating rod 5 penetrates through a threaded hole under the pushing of the thread, at the moment, the rotating rod 5 is pressed downwards, a sucker 501 sucks the desktop, and the base 1 is fixed on the desktop through the rotating rod 5, so that the problem that the existing equipment is lack of a fixed structure and is easy to cause equipment damage is solved, then, a leveling step is needed to be carried out, the numerical value of the dividing disc 601 needs to be read during leveling, during reading, the Euro laser diode 706 is started to enable the Euro laser diode 706 to irradiate on the dividing disc 601, then, a first locking knob 702 or a second locking knob is rotated, under the pushing of the thread, the clamping claw 704 fixes the equipment, and the other end of the clamping claw 704 is connected with the inner ring 705 of the bearing 703, when the first locking knob 702 or the second locking knob 705 rotates, the clamping claw 704 is not influenced by the rotating force, and students can see the linear laser emitted by the European laser diode 706 from various angles, so that the problem that the conventional reading method cannot enable each student to clearly read is solved.
A groove 101 is formed in the lower surface of the base 1 close to the center, and a threaded hole is formed in the bottom surface of the groove 101; adjusting screws are fixedly installed at two ends of the cross beam 3, balance nuts 301 are installed on the outer surface of each adjusting screw in a threaded mode, trays 302 are fixedly installed on the upper surface of the cross beam 3 close to the two ends, and the number of the trays 302 is two; the outer surface of the rotating rod 5 is provided with threads at a position close to the lower end, and the rotating rod 5 is in threaded connection with the threaded holes; an inner rod is movably arranged in the limiting sleeve 4 and is fixedly connected with the lower surface of the limiting connecting piece 2; the first locking knob 702 and the second locking knob 705 are identical in structure.
When the balance is used, firstly, equipment is placed on a horizontal desktop, then a rotating rod 5 is rotated, the threaded end of the rotating rod 5 penetrates through a threaded hole under the pushing of threads, at the moment, the rotating rod 5 is pressed downwards, a sucker 501 sucks the desktop, a base 1 is fixed on the desktop through the rotating rod 5, therefore, the problem that the existing equipment is lack of a fixing structure and is easy to damage the equipment is solved, then, a leveling step is needed, the numerical value of an index plate 601 needs to be read during leveling, an European-standard laser diode 706 is started during reading, the European-standard laser diode 706 irradiates on the index plate 601, then a first locking knob 702 or a second locking knob 705 is rotated, the clamping jaw 704 fixes the equipment under the pushing of the threads, the other end of the clamping jaw 704 is connected with the inner ring of a bearing 703, and the clamping jaw 704 is rotated on the first locking knob 702 or the second locking knob 705, the influence of the rotating force can not be received, and students can see the linear laser emitted by the European laser diode 706 from all angles, so that the problems that each student cannot clearly read by the traditional reading method and errors are easy to generate are solved, and then the measurement can be carried out, and the measurement method is consistent with that of the existing balance.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a balance for student's physics experiments which characterized in that: including base (1), base (1) upper surface is close to central point and puts fixed mounting have balancing pole (6), surface movable mounting has crossbeam (3) before balancing pole (6), crossbeam (3) surface is close to both ends position movable mounting and has spacing connecting piece (2), fixed mounting has spacing sleeve (4) under spacing connecting piece (2), spacing sleeve (4) one side is located base (1) surface threaded mounting has rotary rod (5), fixed surface installs sucking disc (501) under rotary rod (5), balancing pole (6) upper end fixed mounting has graduated disk (601), fixed surface installs the scale before crossbeam (3), the outer surface movable mounting of scale has the running number, balancing pole (6) front surface is close to graduated disk (601) position fixed mounting has mount pad (7), fixed surface installs battery (701) on mount pad (7), surface thread installs a locking knob (702) on one side of mount pad (7), a locking knob (702) one end movable mounting has bearing (703), bearing (703) inner circle part fixed mounting has gripper jaw (704), euro's rule laser diode (706) are installed to gripper jaw (704) one side surface block, mount pad (7) opposite side surface thread installs No. two locking knobs (705).
2. The balance for student physical experiment according to claim 1, wherein: a groove (101) is formed in the position, close to the center, of the lower surface of the base (1), and a threaded hole is formed in the bottom surface of the groove (101).
3. The balance for student physical experiment according to claim 2, wherein: the equal fixed mounting in crossbeam (3) both ends has adjusting screw, adjusting screw installs balance nut (301) in the surface screw thread, crossbeam (3) upper surface is close to the equal fixed mounting in both ends position and has tray (302), the quantity of tray (302) is two.
4. The balance for student physical experiment according to claim 3, wherein: the outer surface of the rotating rod (5) is provided with threads at a position close to the lower end, and the rotating rod (5) is in threaded connection with the threaded hole.
5. The balance for student physical experiment according to claim 4, wherein: an inner rod is movably arranged inside the limiting sleeve (4), and the inner rod is fixedly connected with the lower surface of the limiting connecting piece (2).
6. The balance for student physical experiment according to claim 5, wherein: the first locking knob (702) and the second locking knob (705) are identical in structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121492801.6U CN215374151U (en) | 2021-07-02 | 2021-07-02 | Balance for student physical experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121492801.6U CN215374151U (en) | 2021-07-02 | 2021-07-02 | Balance for student physical experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215374151U true CN215374151U (en) | 2021-12-31 |
Family
ID=79607063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121492801.6U Expired - Fee Related CN215374151U (en) | 2021-07-02 | 2021-07-02 | Balance for student physical experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215374151U (en) |
-
2021
- 2021-07-02 CN CN202121492801.6U patent/CN215374151U/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 |
Granted publication date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |