CN110296129A - The fixation device of jack - Google Patents
The fixation device of jack Download PDFInfo
- Publication number
- CN110296129A CN110296129A CN201910318068.7A CN201910318068A CN110296129A CN 110296129 A CN110296129 A CN 110296129A CN 201910318068 A CN201910318068 A CN 201910318068A CN 110296129 A CN110296129 A CN 110296129A
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- CN
- China
- Prior art keywords
- magnetic force
- pole
- jack
- insulator
- magnetic
- 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.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 154
- 239000012212 insulator Substances 0.000 claims abstract description 62
- 230000005389 magnetism Effects 0.000 claims abstract description 35
- 230000005298 paramagnetic effect Effects 0.000 claims abstract description 22
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 2
- 239000010951 brass Substances 0.000 claims description 2
- 241001669679 Eleotris Species 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 229920004933 Terylene® Polymers 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/83—Use of a magnetic material
Abstract
The embodiment of the invention provides a kind of fixation device of jack, which includes: magnetic force insulator；Two pieces of soft magnetism structures are symmetrical arranged about magnetic force insulator and are fitted and connected with magnetic force insulator；Permanent magnet, it can be rotatably set at the center of magnetic force insulator, the plane that the pole N of permanent magnet and the line of the pole S are parallel to two pieces of soft magnetism structures and magnetic force insulator is constituted, when the line of the pole N and the pole S is vertical with magnetic force insulator, the magnetic line of force returns to the pole S by the paramagnetic structure of fixed device contact by the pole N, formed closed circuit, fixed device is fixed in paramagnetic structure by magnetic force；The magnetic line of force returns to the pole S by the magnetic bases of jack by the pole N, and formation is closed circuit, and the magnetic bases of jack are fixed on the securing means by magnetic force.The program is opposite to fix jack from multi-direction offers support force, fixation of the jack on non-vertical direction may be implemented, advantageously reduces or avoids the occurrence of the technical issues of jack falls personal damage, equipment safety.
Description
Technical field
The present invention relates to technical field of construction, in particular to the fixation device of a kind of jack.
Background technique
Recently, as hydroenergy storage station maintenance is more and more frequent, special dedicated maintenance Work tool is in upkeep operation
The effect of performance will become more and more important.The work for needing to set up jack from non-vertical direction is very universal, for example, ejection
Ball valve connecting lever and measurement hydraulic turbine guide shoe gap.
In real work, when ball valve connecting lever needs to eject maintenance, it is necessary to first bind jack securely, so using suspender belt
Jack is ajusted by the hand steered mode of manpower afterwards, and slowly increases jack stroke and reaches stress.And this side
Formula needs constantly send the hand steered monitoring of special messenger in jack use process, time-consuming and laborious, and are easy moment in an instant in ejection
It does not stress there is a phenomenon where jack is fallen, for the personal safety of operating personnel, there are great hidden danger.
Currently, traditional handicraft generally fixes the jack that non-vertical direction is set up using sleeper, suspender belt etc..However it is this
There is greatly hidden danger in fixed form, be easy to appear jack and fall the thing for damaging personal equipment safety in terms of safety and efficiency
Therefore.
For example, light-weight, production is simple, and good insulation preformance, jack is connect simply with sleeper since elasticity is good for sleeper.
When the jack set up fixed using sleeper, sleeper is fixed on jack base, makes it in jack stroke directions by one
A support force.The limited limitation of sleeper use scope, and quality is softer, when use, often damage it, and only provide one
The support force in direction is easy to that the danger that jack is fallen occurs when not stressing.That is the disadvantage of the fixed jack maximum of sleeper
Being that quality is soft does not accomplish multidirectional fixation.
Suspender belt includes flat sling, round suspender belt etc., flat sling mainly by nylon fiber (lilion), wash
Synthetic fibre fiber (polyethylene terephthalate) and polypropylene fiber (polypropylene synthetic fibers), which are made, to be mainly used for binding and fixes, but is only capable of protecting
The fixation of card binding Impact direction；The material of round suspender belt is mainly terylene synthetic fibers (polyester), outer layer terylene circular sleeve
As protective layer, and inner core uses continuous 100% terylene heart yarn to load as receiving lifting, is mainly used for lifting, and is not suitable for
It works in binding and fixing.Therefore, when using suspender belt binding and fixing jack, suspender belt only can guarantee vertical direction stress, when thousand
Jin top is difficult to contain the shaking of horizontal direction in a free state.I.e. suspender belt binding and fixing jack is maximum the disadvantage is that being only capable of
Guarantee unidirectional stabilization.
Summary of the invention
The embodiment of the invention provides a kind of fixation devices of jack, to go out when solving and fixing jack in the prior art
Existing jack falls the technical issues of damage person, equipment safety.The device includes:
Magnetic force insulator；
Two pieces of soft magnetism structures, two pieces of soft magnetism structures are arranged symmetrically about the magnetic force insulator and exhausted with the magnetic force
Edge body is fitted and connected；
Permanent magnet can be rotatably set at the center of the magnetic force insulator, and the pole N of permanent magnet and the line of the pole S are flat
The plane that row is constituted in two pieces of soft magnetism structures and the magnetic force insulator, when the line of the pole N and the pole S and the magnetic force insulate
When body is vertical, the magnetic line of force returns to the pole S by the paramagnetic structure of the fixed device contact by the pole N, forms closed circuit, the fixed dress
It sets and is fixed in the paramagnetic structure by magnetic force；The magnetic line of force returns to the pole S by the magnetic bases of jack by the pole N, and formation is closed
The magnetic bases on road, the jack are fixed on the fixed device by magnetic force.
In embodiments of the present invention, propose using two pieces of soft magnetism structures about the magnetic force insulator be symmetrical arranged and with
Magnetic force insulator is fitted and connected, and then, permanent magnet can be rotatably set at the center of magnetic force insulator, so that working as the pole N and S
When the line of pole is vertical with magnetic force insulator, the magnetic line of force returns to the pole S by the paramagnetic structure of fixed device contact by the pole N, is formed
Closed circuit, so that generating the magnetic force to attract each other between fixed device and paramagnetic structure, fixed device is fixed on paramagnetic by magnetic force
In structure；The magnetic line of force returns to the pole S by the magnetic bases of jack by the pole N, formed it is closed circuit so that the magnetic bases of jack with
The magnetic force to attract each other is generated between fixed device, the magnetic bases of the jack are fixed on the fixed device by magnetic force
On, it finally realizes through magnetic force and fixes jack, the magnetic line of force due to generating magnetic force is opposite to be dissipated, and existing
Suspender belt, sleeper in technology etc. are compared, and magnetic force is to fix jack from multi-direction offer support force relatively, may be implemented very heavy
The fixation on non-vertical direction is withstood on, the technology that jack falls the damage person, equipment safety is advantageously reduced or avoid the occurrence of
Problem.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, not
Constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of the fixation device of jack provided in an embodiment of the present invention；
Fig. 2 is the signal of magnetic line of force when a kind of fixation device of jack provided in an embodiment of the present invention fixes jack
Figure；
The signal of magnetic line of force when Fig. 3 is a kind of fixation device unlocked jack of jack provided in an embodiment of the present invention
Figure；
Fig. 4 is a kind of schematic diagram of soft magnetism structure provided in an embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of magnetic force insulator provided in an embodiment of the present invention；
Fig. 6 is the schematic diagram that a kind of soft magnetism structure provided in an embodiment of the present invention is connect with magnetic force insulator.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing
The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
In embodiments of the present invention, a kind of fixation device of jack, as shown in Figure 1 and Figure 2, the jack are provided
Fixing device includes:
Magnetic force insulator 101；
Two pieces of soft magnetism structures 102, two pieces of soft magnetism structures 102 about the magnetic force insulator 101 be symmetrical arranged and with
The magnetic force insulator 101 is fitted and connected；
Permanent magnet 103 can be rotatably set at the center of the magnetic force insulator 101, the pole N and the pole S of permanent magnet 103
Line be parallel to the plane that two pieces of soft magnetism structures 102 are constituted with the magnetic force insulator 101, when the line of the pole N and the pole S
When vertical with the magnetic force insulator 101, the magnetic line of force (dotted line in Fig. 2 with arrow is the magnetic line of force) is passed through described solid by the pole N
The paramagnetic structure for determining device contact returns to the pole S, and formation is closed circuit, and the fixed device is fixed on the paramagnetic structure by magnetic force
On 104；The magnetic line of force returns to the pole S by the magnetic bases 105 of jack by the pole N, forms closed circuit, the magnetic bases of the jack
105 are fixed on the fixed device by magnetic force.
It is found that in embodiments of the present invention, proposing using two pieces of soft magnetism structures about the magnetic force as shown in Fig. 1, Fig. 2
Insulator is symmetrical arranged and is fitted and connected with magnetic force insulator, then, permanent magnet can be rotatably set in magnetic force insulator
At center, so that when the line of the pole N and the pole S is vertical with magnetic force insulator, due to the presence of magnetic force insulator, so that the magnetic line of force
The pole S is returned to by the paramagnetic structure 104 that the pole N passes through fixed device contact, formation is closed circuit, so that between fixed device and paramagnetic structure
The magnetic force to attract each other is generated, fixed device is fixed in paramagnetic structure by magnetic force；The magnetic that the magnetic line of force passes through jack by the pole N
Property pedestal 105 return to the pole S, formed it is closed circuit so that generating the magnetic to attract each other between the magnetic bases of jack and fixed device
The magnetic bases of power, the jack are fixed on the fixed device by magnetic force, are finally realized through magnetic force and are fixed
Jack, due to generating the magnetic line of force of magnetic force with respect to diverging, compared with suspender belt in the prior art, sleeper etc., magnetic
Power is to fix jack from multi-direction offer support force relatively, and fixation of the jack on non-vertical direction may be implemented, have
There is the technical issues of jack falls the damage person, equipment safety conducive to being reduced or avoided.
When it is implemented, as shown in figure 3, when the line of the pole N and the pole S is parallel with the magnetic force insulator 101, the pole N and S
The magnetic line of force (dotted line in Fig. 3 with arrow is the magnetic line of force) between pole forms closed circuit, the pole N and S in a soft magnetism structure 102
The magnetic line of force between pole forms closed circuit, the i.e. magnetic line of force shape in two soft magnetism structures 102 respectively in another soft magnetism structure 102
At independent closed circuit, the not formed magnetic line of force is closed circuit between the fixed device and the paramagnetic structure 104, does not generate magnetic force, this
When, fixed device can be taken away easily；The not formed magnetic line of force closes between the magnetic bases of the jack and the fixed device
Road does not generate magnetic force, at this point, fixed device is not fixed jack.
When it is implemented, handle can be arranged on permanent magnet in order to rotate permanent magnet 103.
When it is implemented, as shown in figure 4, two pieces of soft magnetism structures 102 can be cuboid, as shown in figure 5, the magnetic
Power insulator 101 can be plates, and the length of two pieces of soft magnetism structures 102 can be with the appearance of the magnetic force insulator 101
Together, the height of two pieces of soft magnetism structures 102 is identical as the height of the magnetic force insulator 101.
When it is implemented, as shown in fig. 6, two pieces of soft magnetism structures 102 are symmetrical arranged about the magnetic force insulator 101
And it is bonded with the magnetic force insulator 101 when being fixedly connected, the broadside of two pieces of soft magnetism structures 102 and the magnetic force insulator
101 broadside is in same plane.Specifically, two pieces of soft magnetism structures 102 can be bonded admittedly with the magnetic force insulator 101
Fixed connection, becomes an entirety.
When it is implemented, in order to realize that above-mentioned fixed device can be by the fixed jack of magnetic force, in the present embodiment, institute
Stating permanent magnet can be column structure, and as shown in Figure 1, Figure 2, Figure 3 shows, every one end of the permanent magnet has the pole N and the pole S simultaneously.
When it is implemented, in order to realize that can provide enough magnetic force fixes jack, in the present embodiment, such as Fig. 6
Shown, the permanent magnet 103 passes through the magnetic force insulator, the permanent magnet 103 at the center of the magnetic force insulator 101
Axial direction it is parallel with the long side of the magnetic force insulator 101.Specifically, permanent magnet can be the long side along the magnetic force insulator
Run through magnetic force insulator at center.
When it is implemented, the magnetic force generated between the fixed device and the paramagnetic structure can be greater than 30 newton, it should
Magnetic force size at least meets the fixed demand of the fixation device of 3 kiloponds.
When it is implemented, the mechanical jack weight that uses of scene is generally 5kg or so, and above-mentioned fixed device permanent magnetism
Producible sorptive force (i.e. magnetic force) is far longer than its weight between body and jack base, so that even if jack is disposed vertically
When be also enough to cope with its shearing force, therefore the application does not have specific requirement to the size of fixed device.To meet jack user
Just, fixed device can be designed and sized to, jack bottom area in the same size with jack bottom size
Generally 10mmX10mm.Specifically, when permanent magnet is column structure, magnet size size and the size pair for generating sorptive force
It should be related to as shown in table 1 below:
Table 1
When it is implemented, the length of the line of the pole N and the pole S is greater than the width of the magnetic force insulator, in the pole N and the pole S
Line it is vertical with magnetic force insulator when, avoid the width of magnetic force insulator while covering the pole N and the pole S and causing the magnetic line of force can not be by
The pole N forms closed circuit to the pole S.
When it is implemented, above-mentioned magnetic force insulator can be brass.
When it is implemented, above-mentioned paramagnetic structure, which can be scene, can arbitrarily showed with magnetized structure to fix device
Field can fix itself.
When it is implemented, the material of above-mentioned soft magnetism structure can be the soft magnetic materials such as Ferrite Material.Specifically, soft magnetism material
Expect to refer under weaker magnetic field, a kind of Ferrite Material that easy magnetization also easily demagnetizes.
When it is implemented, modern hydroenergy storage station purposeful can all overhaul every year, the jack of specific position is set up
Work happens occasionally, and traditional handicraft generally fixes the jack that non-vertical direction is set up using sleeper, suspender belt etc..For example,
In March, 2018 in No. 1 unit ball valve pivot sealing replacement process of imaging space hydroenergy storage station, was fixed using suspender belt at that time
The jack of horizontal direction ejects connecting lever, and working efficiency is extremely low and jack easy moment does not stress and small size when eject connecting lever
Degree is fallen, and the personal safety of staff is on the hazard.Reason has two, first is that suspender belt fixes horizontal direction, however it is vertical square
Shaking to no power limit jack；Second is that being easy not stressing suddenly in jack ejection process, to form jack
Fall risk.
It is verified by present inventor, for the position that such jack can not directly be set up, the application is above-mentioned removable
Problems can be solved in the fixation device of dynamic formula jack.
The embodiment of the present invention realizes following technical effect: proposing and is insulated using two pieces of soft magnetism structures about the magnetic force
Body is symmetrical arranged and is fitted and connected with magnetic force insulator, then, permanent magnet can be rotatably set in the center of magnetic force insulator
Place, so that the magnetic line of force is passed through the paramagnetic knot that fixed device contacts by the pole N when the line of the pole N and the pole S is vertical with magnetic force insulator
Structure returns to the pole S, and formation is closed circuit, so that generating the magnetic force to attract each other between fixed device and paramagnetic structure, fixed device passes through
Magnetic force is fixed in paramagnetic structure；The magnetic line of force returns to the pole S by the magnetic bases of jack by the pole N, and formation is closed circuit, so that very heavy
The magnetic force to attract each other is generated between the magnetic bases on top and fixed device, the magnetic bases of the jack are fixed by magnetic force
It on the fixed device, finally realizes through magnetic force and fixes jack, the magnetic line of force due to generating magnetic force is opposite sends out
Scattered, therefore compared with suspender belt in the prior art, sleeper etc., magnetic force is opposite very heavy to fix from multi-direction offer support force
Top, fixation of the jack on non-vertical direction may be implemented, advantageously reduce or avoid the occurrence of jack fall damage the person,
The technical issues of equipment safety.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of fixation device of jack characterized by comprising
Magnetic force insulator；
Two pieces of soft magnetism structures, two pieces of soft magnetism structures about the magnetic force insulator be symmetrical arranged and with the magnetic force insulator
It is fitted and connected；
Permanent magnet can be rotatably set at the center of the magnetic force insulator, and the pole N of permanent magnet and the line of the pole S are parallel to
The plane that two pieces of soft magnetism structures and the magnetic force insulator are constituted, when the line of the pole N and the pole S and the magnetic force insulator hang down
When straight, the magnetic line of force returns to the pole S by the paramagnetic structure of the fixed device contact by the pole N, and formation is closed circuit, and the fixed device is logical
Magnetic force is crossed to be fixed in the paramagnetic structure；The magnetic line of force returns to the pole S by the magnetic bases of jack by the pole N, forms closed circuit, institute
The magnetic bases for stating jack are fixed on the fixed device by magnetic force.
2. the fixation device of jack as described in claim 1, which is characterized in that when the line of the pole N and the pole S and the magnetic force
When insulator is parallel, the magnetic line of force between the pole N and the pole S forms closed circuit magnetic force between the pole N and the pole S in a soft magnetism structure
Line forms closed circuit in another soft magnetism structure, does not generate magnetic force between the fixed device and the paramagnetic structure, and described thousand
Magnetic force is not generated between the magnetic bases and the fixed device on jin top.
3. the fixation device of jack as described in claim 1, which is characterized in that
Two pieces of soft magnetism structures are cuboid, and the magnetic force insulator is plates, the length of two pieces of soft magnetism structures and institute
The length for stating magnetic force insulator is identical, and the height of two pieces of soft magnetism structures is identical as the height of the magnetic force insulator.
4. the fixation device of jack as claimed in claim 3, which is characterized in that the broadside of two pieces of soft magnetism structures and institute
The broadside for stating magnetic force insulator is in same plane.
5. the fixation device of jack as claimed in claim 3, which is characterized in that the permanent magnet is column structure, described
Every one end of permanent magnet has the pole N and the pole S simultaneously.
6. the fixation device of jack as claimed in claim 5, which is characterized in that the permanent magnet is in the magnetic force insulator
Center at pass through the magnetic force insulator, the axial direction of the permanent magnet is parallel with the long side of the magnetic force insulator.
7. the fixation device of jack as claimed in claim 3, which is characterized in that the length of the line of the pole N and the pole S is big
In the width of the magnetic force insulator.
8. the fixation device of the jack as described in any one of claims 1 to 7, which is characterized in that the magnetic force insulator
For brass.
9. the fixation device of the jack as described in any one of claims 1 to 7, which is characterized in that the soft magnetism structure
Material is Ferrite Material.
10. the fixation device of the jack as described in any one of claims 1 to 7, which is characterized in that the fixed device with
The magnetic force generated between the paramagnetic structure is greater than 30 newton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910318068.7A CN110296129A (en) | 2019-04-19 | 2019-04-19 | The fixation device of jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910318068.7A CN110296129A (en) | 2019-04-19 | 2019-04-19 | The fixation device of jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110296129A true CN110296129A (en) | 2019-10-01 |
Family
ID=68026533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910318068.7A Pending CN110296129A (en) | 2019-04-19 | 2019-04-19 | The fixation device of jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110296129A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140843A (en) * | 2011-04-19 | 2011-08-03 | 中铁二十四局集团有限公司 | Positioning method for fixing T steel through magnetic force |
| CN203970277U (en) * | 2014-05-17 | 2014-12-03 | 中国石油大学(华东) | A kind of can demagnetization double-side window-cleaning device |
| CN203973513U (en) * | 2014-08-14 | 2014-12-03 | 长春职业技术学院（长春市职业技术教育中心长春市财政学校） | The workbench that a kind of height and multi-angle are adjustable |
| CN105289789A (en) * | 2015-10-16 | 2016-02-03 | 南通大学 | Magnetic base test tube rack for super clean bench |
| CN205325708U (en) * | 2015-12-30 | 2016-06-22 | 华南理工大学 | Use magnetism manipulator of magnetic shelf principle |
| CN106913441A (en) * | 2017-02-24 | 2017-07-04 | 柳州市妇幼保健院 | A kind of medical tray |
| US20170275847A1 (en) * | 2014-10-13 | 2017-09-28 | Groupe Mecalac | Tool Holder for a Work Vehicle or Construction Machine |
| CN208054799U (en) * | 2018-04-24 | 2018-11-06 | 郑雪坤 | A kind of expansible module jack used |
-
2019
- 2019-04-19 CN CN201910318068.7A patent/CN110296129A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140843A (en) * | 2011-04-19 | 2011-08-03 | 中铁二十四局集团有限公司 | Positioning method for fixing T steel through magnetic force |
| CN203970277U (en) * | 2014-05-17 | 2014-12-03 | 中国石油大学(华东) | A kind of can demagnetization double-side window-cleaning device |
| CN203973513U (en) * | 2014-08-14 | 2014-12-03 | 长春职业技术学院（长春市职业技术教育中心长春市财政学校） | The workbench that a kind of height and multi-angle are adjustable |
| US20170275847A1 (en) * | 2014-10-13 | 2017-09-28 | Groupe Mecalac | Tool Holder for a Work Vehicle or Construction Machine |
| CN105289789A (en) * | 2015-10-16 | 2016-02-03 | 南通大学 | Magnetic base test tube rack for super clean bench |
| CN205325708U (en) * | 2015-12-30 | 2016-06-22 | 华南理工大学 | Use magnetism manipulator of magnetic shelf principle |
| CN106913441A (en) * | 2017-02-24 | 2017-07-04 | 柳州市妇幼保健院 | A kind of medical tray |
| CN208054799U (en) * | 2018-04-24 | 2018-11-06 | 郑雪坤 | A kind of expansible module jack used |
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Application publication date: 20191001 |