CN202304822U - Magnetic device and magnetic level ruler - Google Patents
Magnetic device and magnetic level ruler Download PDFInfo
- Publication number
- CN202304822U CN202304822U CN201120243282XU CN201120243282U CN202304822U CN 202304822 U CN202304822 U CN 202304822U CN 201120243282X U CN201120243282X U CN 201120243282XU CN 201120243282 U CN201120243282 U CN 201120243282U CN 202304822 U CN202304822 U CN 202304822U
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- magnetic
- magnet
- magnet steel
- force
- surveyor
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Abstract
The utility model relates to a magnetic device capable of generating a larger magnetic attraction force. The magnetic device is characterized by comprising a magnet or magnetic steel and a magnetic guider, wherein the magnetic guider is arranged at any electrode of the magnet or the magnetic steel, and is made of a magnetic material with magnetic resistance smaller than air reluctance. The utility model further provides a magnetic level ruler equipped with the magnetic device. Compared with the prior art, the magnetic device and the magnetic level ruler have the advantages that after the magnetic device is adopted, the same amount of magnet or magnetic steel can generate magnetic force which is many times larger than the magnetic force generated by a naked magnet or naked magnetic steel; when the magnetic level ruler needs a magnetic attraction force with rated amplitude, the use mount can be reduced by many times as compared with that of the naked magnet or naked magnetic steel.
Description
Technical field
The present invention relates to a kind of magnetic means and band magnetic surveyor's staff.
Background technology
For surveyor's staff can be adsorbed on the magnetic conductor such as iron and steel, general through two places or naked magnet more than two places or naked magnet steel are set in surveyor's staff chi body.
Band magnetic surveyor's staff in use, its magnetic line of force need form the loop with adsorption plane again through air because air is especially big to the magnetic resistance of the magnetic line of force, thereby the magnetic force of magnet or magnet steel receives heavy losses, can not bringing into play to have suction.Reach the suction of setting, the consumption that often need increase magnet or magnet steel again satisfies.
At present, both at home and abroad the band magnetic surveyor's staff of surveyor's staff industry is to rely on the magnetic force of magnet or magnet steel itself to guarantee the suction requirement of its corresponding specification.Therefore, for the suction requirement of the chi certain specification that is up to the standard, usual way is: one, use the stronger magnetic material of magnetic force such as the magnet steel of NdFeB material, and two, the consumption of increasing magnet or magnet steel.
The present technique summary of the invention
First technical matters to be solved by this invention is to above-mentioned prior art a kind of magnet or magnet steel that uses same quantity or smaller amounts to be provided, and makes it to produce the peculiar technology of bigger magnetic attraction, and adopts this technological magnetic means.
Second technical matters to be solved by this invention provides a kind of employing has the magnetic means of above-mentioned technology to be applied to current band magnetic surveyor's staff.
The present invention solves the technical scheme that above-mentioned first technical matters adopts and it is characterized in that: comprise magnet or magnet steel and be arranged on magnetic force guides its any utmost point, that adopt magnetic resistance to process less than the permeability magnetic material of air reluctance.
Above-mentioned magnetic force guides adopts the more little material of magnetic resistance good more, can adopt common iron block or bloom.
From the electromagnetics principle analysis; Add one at any utmost point of magnet or magnet steel and adopt magnetic resistance less than air reluctance, magnetic line of force direction projection area is more than or equal to the projected area of magnet or magnet steel, the magnetic force guides of being processed by permeability magnetic material; It is adsorbed on magnet or the magnet steel; This magnetic force guides can change the conducting path of magnet or this utmost point magnetic line of force of magnet steel, most of magnetic line of force of magnet or magnet steel is passed through in the magnetic force guides, and strengthened the active area of the magnetic line of force of magnet or magnet steel; Because the magnetic resistance of magnetic force guides is less than the magnetic resistance of air; It has shortened the air gap distance that the magnetic line of force conducts in air and non-magnet material, when another utmost point of magnet or magnet steel was adsorbed on magnetic conductor, the magnetic line of force was propagated in magnetic force guides and magnetic conductor; And pass and lose heart the crack or do not have air gap formation closed loop, make the suction of magnet or magnet steel perform to maximal value.
Design through present technique; Under identical suction requires; The magnet of the band magnetic surveyor's staff under original technology or the use amount of magnet steel be can significantly reduce, thereby optimal design structure and the purpose of saving resource, reduction cost of products and the chi magnetic performance of improving the standard reached.
According to the characteristics of present technique, said magnetic force guides is good with plate-like structure, and its magnetic line of force direction projection area lets whole magnetic powers that magnet or magnet steel had intactly pass through the magnetic force guides more than or equal to the projected area of magnet or magnet steel.
Improve again; Said magnet or magnet steel are between magnetic force guides and surveyor's staff installation base surface; Magnet or magnet steel adopt flat structure, and magnetic pole is arranged on the planar ends up and down of magnet or magnet steel, can overcome the magnetic line of force so fully and form the loop, cause reducing the problem of absorption affinity through air gap.
Preferably; Make its lateral cross be " or fall " recessed " font thereby said magnetic force guides surface is provided with cavity; Said magnet or magnet steel promptly are arranged in the cavity of said magnetic force guides; When said magnetic force guides adopts this structure, can drop to minimum to the conduction magnetic resistance of the magnetic line of force, be applicable to the magnet or the magnet steel of any thickness.
Said magnetic force guides is provided with mounting hole, is used for magnet or magnet steel are fixed on the surveyor's staff installation base surface.
The present invention solves above-mentioned second technical scheme that technical matters adopted: this band magnetic surveyor's staff; Comprise chi body, magnet or magnet steel, magnetic force guides etc.; It is characterized in that: be provided with the magnetic means that adopts present technique in the said chi body; Comprise magnet or magnet steel and be arranged on magnet or the magnetic force guides any utmost point of magnet steel, that adopt magnetic resistance to process less than the permeability magnetic material of air reluctance.
This magnetic force guides is a plate-like structure, and its magnetic line of force direction projection area is more than or equal to the projected area of magnet or magnet steel, and that can bring into play magnet or magnet steel better should have magnetic attraction.
As improvement, be provided with the magnetic means that two groups or more adopts present technique in the said chi body, be fixed on symmetrically on the installation base surface of chi body, and magnet or magnet steel are between the installation base surface of magnetic force guides and chi body.
Thereby being provided with cavity, said magnetic force guides surface makes its lateral cross be " or falls " recessed " font that said magnet or magnet steel promptly are arranged in the cavity of said magnetic force guides.
Said magnetic force guides is provided with the fixed position that usefulness is installed, and corresponding site also is provided with fixed position on the installation base surface of said chi body, is connected the magnetic force guides with chi body installation base surface fixing through fastening means.
Compared with prior art, the invention has the advantages that: adopt band magnetic surveyor's staff provided by the invention, can make the magnet of same amount or magnet steel generation be several times as much as the magnetic force that original technology band magnetic surveyor's staff is produced; When the band magnetic surveyor's staff magnetic attraction of present technique was set with the equal magnetic attraction of original tape magnetic surveyor's staff, the present technique invention can be saved magnet or the magnet steel consumption that is several times as much as former technology (naked magnet or naked magnet steel).Present technique can reduce the raw material use amount, economizes on resources; Can reduce manufacturing cost again; Optimize structure, be more suitable for request for utilization.
Description of drawings
Fig. 1 is the structural representation of the band magnetic surveyor's staff of instance one of the present invention;
Fig. 2 is band magnetic surveyor's staff magnetic means structural representation in the instance one of the present invention;
Fig. 3 is the magnetic line of force distribution figure of the band magnetic surveyor's staff magnetic means of instance one of the present invention;
Magnetic means magnetic line of force distribution figure when Fig. 4 is adsorbed on the magnetic conduction plane for the band magnetic surveyor's staff of instance one of the present invention;
Fig. 5 is not for adopting the magnetic line of force distribution figure of band magnetic surveyor's staff of the present invention;
Fig. 6 is the magnetic line of force distribution figure when not adopting band magnetic surveyor's staff of the present invention to be adsorbed on the magnetic conductor plane;
Fig. 7 is the magnetic means structural representation of band magnetic surveyor's staff in the instance two of the present invention;
Fig. 8 is the magnetic means structural representation of band magnetic surveyor's staff in the instance three of the present invention.
Embodiment
Below in conjunction with the accompanying drawing instance the present invention is described in further detail.
Instance one
The magnetic means that this instance provides (6); Comprise tabular magnet or magnet steel (6.1) and be arranged on magnet or magnetic force guides (6.2) any utmost point of magnet steel, that adopt the less permeability magnetic material of magnetic resistance to process; Magnetic force guides (6.2) adopts magnetic resistance to process much smaller than the permeability magnetic material of air reluctance in this instance, and its magnetic line of force direction projection area is more than or equal to the projected area of magnet or magnet steel (6.1).
Adopt the band magnetic surveyor's staff of the magnetic means that this instance provides to comprise chi body (1), horizontal levelling bubble (2), vertical air level or gradient air level (3), shake hands (4), end cap (5) and magnetic means (6).Magnetic means (6) symmetry is fixed on the installation base surface (1.1) of chi body (1), and the magnet of magnetic means or magnet steel (6.1) are fixed between magnetic force guides (6.2) and the surveyor's staff installation base surface (1.1), referring to Fig. 1, shown in Figure 2.
Adopt the magnetic line of force of the band magnetic surveyor's staff of the magnetic means that this instance provides to distribute referring to shown in Figure 3.When a certain utmost point of magnet or magnet steel (6.1) relied on magnetic force guides (6.2), most of magnetic line of force of this utmost point obtained the magnetic circuit of specific direction in magnetic force guides (6.2).
When the band magnetic surveyor's staff of the magnetic means that adopts this instance to provide is adsorbed on the magnetic conductor; Its magnetic line of force distributes referring to shown in Figure 4; The magnetic line of force is set out through very short surveyor's staff chi body wall by a utmost point of magnetic force guides (6.2); Chi body wall and another utmost point magnetic pole through magnetic conductor and surveyor's staff forms the magnetic circuit closed loop again, and between magnetic force guides (6.2) and magnetic conductor plane, produces adsorption.
When not adopting band magnetic surveyor's staff of the present invention, the magnetic line of force of its magnet distributes, referring to shown in Figure 5 through chi body and air radially;
When not adopting band magnetic surveyor's staff of the present invention to be adsorbed on the magnetic conductor; The magnetic line of force passes than behind long air and the chi body; Conduction and form the loop in magnetic conductor with another utmost point; Part magnetic force is consumed in the air, so produce acting force between magnet or magnet steel and the magnetic conductor by serious reduction, referring to shown in Figure 6.
Instance two
Different with instance one is; Magnetic force guides (6.2) in the magnetic means (6) thus the surface be provided with cavity and make its lateral cross be "; Referring to shown in Figure 7; Said magnet or magnet steel (6.1) promptly are arranged in the cavity of said magnetic force guides (6.2); And magnetic force guides (6.2) is provided with the securing member (6.2.1) that usefulness is installed, and the baseplane (1.1) of said chi body (1) is gone up corresponding site and is provided with through hole (1.1.1), and screw (6.3) passes said through hole (1.1.1) back and is connected fixing with the screw (6.2.1) of magnetic force guides (6.2).
Instance three
Different with instance two is that the cavity that the surface of magnetic force guides (6.2) is provided with is for falling " recessed " font, referring to shown in Figure 8.
Claims (7)
1. the magnetic means that can produce bigger magnetic attraction is characterized in that: comprise magnet or magnet steel and be arranged on the magnetic force guides magnet or any utmost point of magnet steel, that adopt magnetic resistance to process less than the permeability magnetic material of air reluctance.
2. magnetic means according to claim 1 is characterized in that: said magnetic force guides, its magnetic line of force direction projection area is more than or equal to the projected area of magnet or magnet steel.
3. magnetic means according to claim 1 is characterized in that: said magnet or magnet steel are between magnetic force guides and installation base surface, and magnet or magnet steel adopt flat structure, and magnetic pole is arranged on upper and lower side.
4. magnetic means according to claim 1 is characterized in that: make and to be " or to fall " recessed " font that magnet or magnet steel promptly are placed in the cavity of magnetic force guides thereby said magnetic force guides surface is provided with cavity.
5. according to the magnetic means shown in the claim 1, it is characterized in that: the magnetic force guides is provided with mounting hole.
6. an employing has the band magnetic surveyor's staff of magnetic means according to claim 1, comprises the chi body, it is characterized in that: the magnetic means that is provided with claim 1 in the said chi body.
7. band magnetic surveyor's staff according to claim 6 is characterized in that: one group or two groups of above many groups magnetic means can be set in the said chi body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120243282XU CN202304822U (en) | 2011-07-03 | 2011-07-03 | Magnetic device and magnetic level ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120243282XU CN202304822U (en) | 2011-07-03 | 2011-07-03 | Magnetic device and magnetic level ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202304822U true CN202304822U (en) | 2012-07-04 |
Family
ID=46373701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120243282XU Expired - Fee Related CN202304822U (en) | 2011-07-03 | 2011-07-03 | Magnetic device and magnetic level ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202304822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10317209B2 (en) | 2015-09-21 | 2019-06-11 | Milwaukee Electric Tool Corporation | Level with magnetic coupling |
-
2011
- 2011-07-03 CN CN201120243282XU patent/CN202304822U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10317209B2 (en) | 2015-09-21 | 2019-06-11 | Milwaukee Electric Tool Corporation | Level with magnetic coupling |
| US11054257B2 (en) | 2015-09-21 | 2021-07-06 | Milwaukee Electric Tool Corporation | Level with magnetic coupling |
| US11686579B2 (en) | 2015-09-21 | 2023-06-27 | Milwaukee Electric Tool Corporation | Level with magnetic coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20130703 |