CN110994516A - Drainage plate - Google Patents
Drainage plate Download PDFInfo
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- CN110994516A CN110994516A CN201911379911.9A CN201911379911A CN110994516A CN 110994516 A CN110994516 A CN 110994516A CN 201911379911 A CN201911379911 A CN 201911379911A CN 110994516 A CN110994516 A CN 110994516A
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- Prior art keywords
- nut
- drainage
- drainage plate
- limiting rod
- bolt
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
- H01R4/42—Clamping area to one side of screw only
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application relates to the technical field of electrical equipment, in particular to a drainage plate, which comprises a fastening assembly and two drainage plates; the fastening assembly comprises a bolt and a nut; the bolt head and the nut are both provided with permanent magnets; the bolt is provided with a limiting rod made of magnetic shape memory alloy; the high-temperature phase and the low-temperature phase of the limiting rod are respectively in a curved shape and a straight shape; the limiting rod and the stud of the low-temperature phase penetrate through the drainage plate and are fixedly connected with the nut, so that the two permanent magnets are mutually attracted, and the two drainage plates are fastened and sealed; when the drainage plate generates heat, the limiting rod is changed into a high-temperature phase form from a low-temperature phase form to drive the limiting rod to abut against the nut, so that the two drainage plates are kept fastened and sealed. This application can further fasten two drainage plates through installing the permanent magnet on bolt head and nut, and the spacing pole can automatic deformation play the effect from the fastening when the drainage plate generates heat simultaneously, solves prior art effectively and has two easy contact failure's technical problem of drainage plate.
Description
Technical Field
The application relates to the technical field of electrical equipment, in particular to a drainage plate.
Background
The strain clamp on the transmission line is an important electric power fitting, and the drainage plate of the strain clamp needs to bear the pressure of a lead and has good electrical performance. At present, two sheet-shaped drainage plates are connected and fixed by bolts in the conventional drainage plate applied to a common power transmission line, and the drainage plate has the characteristics of simple structure, small processing difficulty and low cost. Though it is all more convenient to dismantle with the installation through bolted drainage plate, but two drainage plates through bolted fixation can be because of the accumulated wind pendulum of day and month bad contact, and the drainage plate bad contact leads to the fastener to generate heat easily, influences transmission line's steady operation.
Disclosure of Invention
In view of this, the purpose of this application is to provide a drainage plate, solve the technical problem that prior art has two drainage plates easy contact failure effectively, through install the permanent magnet on bolt head and nut, can further fasten two drainage plates, the spacing pole can automatic deformation play the effect of self-fastening when the drainage plate generates heat simultaneously, has the sealed advantage of drainage plate fastening.
In order to achieve the purpose, the application provides the following technical scheme:
a drainage plate comprises a fastening assembly and two drainage plates; the two drainage plates are provided with corresponding mounting holes; the fastening assembly comprises a bolt and a nut, wherein an external thread is arranged on the periphery of the bolt, and an internal thread matched with the external thread is arranged on the inner wall of the nut; the bolt head of the bolt is provided with a first permanent magnet, and the nut is provided with a second permanent magnet; the end part of the bolt, which is far away from the bolt head, is provided with a limiting rod, and the limiting rod is made of magnetic shape memory alloy; the high-temperature phase of the limiting rod is in a bent shape, the first end of the limiting rod is connected with the end part of the bolt, and the second end of the limiting rod extends outwards to form a bent structure; the low-temperature phase form of the limiting rod is linear; the limiting rod and the stud of the bolt in the low-temperature phase penetrate through the mounting hole to be fixedly connected with the nut, so that the first permanent magnet and the second permanent magnet are mutually attracted, and the two drainage plates are abutted between the bolt head and the nut, so that the two drainage plates are fastened and sealed; the temperature that two drainage plates generate heat and produce is greater than the transition temperature of gag lever post, the gag lever post changes from low temperature looks form into high temperature looks form to order about the gag lever post butt the nut, make two keep fastening sealed between the drainage plate.
Preferably, in the drainage plate, the number of the limiting rods is two, and the second ends of the limiting rods of the two high-temperature phases extend away from each other.
Preferably, in the above-mentioned drainage plate, the sum of 2 times the thickness of the drainage plate and the thickness of the nut is equal to the length of the stud.
Preferably, in the above drainage plate, the fastening assembly further includes a gasket, the gasket is movably sleeved on the stud, and the gasket is disposed between the bolt head and the drainage plate or between the nut and the drainage plate.
Preferably, in the above-mentioned flow guide plate, the sum of 2 times the thickness of the flow guide plate and the thickness of the nut is equal to the difference between the length of the stud and the thickness of the gasket.
Preferably, in the above drainage plate, the first permanent magnet is detachably connected to the bolt head, and the second permanent magnet is detachably connected to the nut.
Preferably, in the above flow guide plate, the first permanent magnet and the second permanent magnet are specifically alnico magnets, ferrite magnets, or ndfeb magnets.
Preferably, in the above-mentioned flow guide plate, the magnetic shape memory alloy is mainly made of 50.2-52.2% by mass of Ni, 23.8-25.8% by mass of Mn, and 23-25% by mass of Ga.
Preferably, in the above drainage plate, the transition temperature of the magnetic shape memory alloy is 45 ℃ to 50 ℃.
Preferably, in the drainage plate, the number of the fastening assemblies is at least 2, and the fastening assemblies are uniformly distributed on the drainage plate.
Compared with the prior art, the beneficial effects of this application are:
the first permanent magnet and the second permanent magnet are respectively additionally arranged at the bolt head and the nut, when the two drainage plates are fixed, the first permanent magnet and the second permanent magnet can attract each other, compared with the traditional mode that the drainage plates are fixed only through the bolt and the nut, the drainage plate fixing device has the advantages that the bolt and the nut are not easy to loosen due to the attraction effect of the two permanent magnets, good clamping acting force can be generated on the two drainage plates, the two drainage plates are tightly clamped between the bolt head and the nut, and therefore the two drainage plates can be further fastened, the technical problem that the two drainage plates are easy to contact badly in the prior art is effectively solved, the possibility of heating of the drainage plates is reduced, and the stable operation of a power transmission line is guaranteed;
when the two drainage plates generate heat, the limiting rod can be changed from a linear shape of a low-temperature phase to a curved shape of a high-temperature phase, and the limiting rod can be abutted against the nut to effectively limit the outward movement of the drainage plates, so that the two drainage plates can be continuously fastened and sealed, a good self-fastening effect is achieved, the two drainage plates can be prevented from further generating heat, and the instability of a power system caused by the heating of the drainage plates is reduced;
compared with the traditional drainage plate structure, the installation method has the advantages that the bolts only need to be changed, the drainage plate is not changed, the installation method is completely consistent with the traditional drainage plate, field construction personnel can master the installation method without additional training, and the installation method is low in change cost, simple in structure and convenient to install.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a drainage plate according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a low-temperature phase-shaped limiting rod according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural view of a high temperature phase type stop lever according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a drainage plate provided in an embodiment of the present application after heating;
FIG. 5 is a schematic view of a drainage plate according to an embodiment of the present disclosure mounted on a circuit;
fig. 6 is a schematic view illustrating a bolt according to an embodiment of the present disclosure.
In the figure:
the drainage plate is 1, the bolt is 2, the bolt head is 21, the stud is 22, the nut is 3, the limiting rod is 4, and the gasket is 5.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The strain clamp on the transmission line is an important electric power fitting, and the drainage plate of the strain clamp needs to bear the pressure of a lead and has good electrical performance. At present, two sheet-shaped drainage plates are connected and fixed by bolts in the conventional drainage plate applied to a common power transmission line, and the drainage plate has the characteristics of simple structure, small processing difficulty and low cost. Though it is all more convenient to dismantle with the installation through bolted drainage plate, but two drainage plates through bolted fixation can be because of the accumulated wind pendulum of day and month bad contact, and the drainage plate bad contact leads to the fastener to generate heat easily, influences transmission line's steady operation. The application provides a drainage plate, through installing the permanent magnet on bolt head and nut, can further fasten two drainage plates, the effect that spacing pole can automatic deformation play the self-fastening when the drainage plate generates heat simultaneously has the sealed advantage of drainage plate fastening, solves prior art effectively and has two easy contact failure's of drainage plate technical problem.
Referring to fig. 1 to 6, the embodiment of the present application provides a flow guide plate 1, which includes a fastening assembly and two flow guide plates 1; the two drainage plates 1 are provided with corresponding mounting holes; the fastening assembly comprises a bolt 2 and a nut 3, wherein an external thread is arranged on the periphery of the bolt 2, and an internal thread matched with the external thread is arranged on the inner wall of the nut 3; the bolt head 21 of the bolt 2 is provided with a first permanent magnet, and the nut 3 is provided with a second permanent magnet; the end part of the bolt 2 far away from the bolt head 21 is provided with a limiting rod 4, and the limiting rod 4 is made of magnetic shape memory alloy; the high-temperature phase of the limiting rod 4 is in a bent shape, the first end of the limiting rod 4 is connected with the end part of the bolt 2, and the second end of the limiting rod 4 extends outwards to form a bent structure; the low-temperature phase form of the limiting rod 4 is linear; the low-temperature-phase limiting rod 4 and the stud 22 of the bolt 2 penetrate through the mounting hole to be fixedly connected with the nut 3, so that the first permanent magnet and the second permanent magnet are mutually attracted, and the two drainage plates 1 are abutted between the bolt head 21 and the nut 3, so that the two drainage plates 1 are fastened and sealed; two drainage plates 1 generate heat the temperature that produces and are greater than the transition temperature of gag lever post 4, and gag lever post 4 changes from low temperature looks form into high temperature looks form to order about 4 butt nuts 3 of gag lever post, make and keep fastening sealed between two drainage plates 1.
More specifically, the limiting rod 4 in fig. 2 is in a high-temperature phase form, the limiting rod 4 in fig. 3 is in a low-temperature phase form, and the limiting rod 4 is in the low-temperature phase form in a normal-temperature state, that is, the limiting rod 4 is linear when being installed by a worker, at this time, the linear limiting rod 4 does not affect the stud 22 of the bolt 2 to pass through the two mounting plates and the nut 3 to pass through the limiting rod 4, so that the worker can normally mount the nut 3 and the bolt 2, and the two drainage plates 1 are abutted between the bolt head 21 and the nut 3 by continuously screwing the nut 3. Then utilize the inter attraction of first permanent magnet and second permanent magnet for bolt 2 and nut 3 are difficult not hard up, can avoid two drainage plates 1 can be because of the wind that accumulates every day and month swings the condition that bad contact appears effectively. First permanent magnet and second permanent magnet (not drawn in the figure) preferred adopt alnico magnet, can guarantee like this that gag lever post 4 made by magnetic shape memory alloy can be in comparatively stable magnetic field, under guaranteeing the magnetic field effect, gag lever post 4 can utilize the heat that drainage plate 1 generates heat to warp, and then the outside not hard up of restriction nut 3 to the effect of realization self-fastening.
The beneficial effect of this application is: (1) through respectively additionally arranging the first permanent magnet and the second permanent magnet at the bolt head 21 and the nut 3, when the two drainage plates 1 are fixed, the first permanent magnet and the second permanent magnet can attract each other, compared with the traditional mode that the drainage plates 1 are fixed only through the bolt 2 and the nut 3, the drainage plate fixing device has the advantages that the bolt 2 and the nut 3 are not easy to loosen due to the attraction effect of the two permanent magnets, good clamping acting force can be generated on the two drainage plates 1, the two drainage plates 1 are tightly clamped between the bolt head 21 and the nut 3, and therefore the two drainage plates 1 can be further fastened, the technical problem that the two drainage plates 1 are easy to contact badly in the prior art is effectively solved, the possibility that the drainage plates 1 generate heat is reduced, and the stable operation of a power transmission line is ensured; (2) when the two drainage plates 1 generate heat, the limiting rod 4 can be changed from a linear shape of a low-temperature phase to a curved shape of a high-temperature phase, and at the moment, the limiting rod 4 can abut against the nut 3 to effectively limit the outward movement of the drainage plates 1, so that the two drainage plates 1 are continuously kept fastened and sealed, a good self-fastening effect is achieved, the two drainage plates 1 can be prevented from further generating heat, and the instability of a power system caused by the heat generation of the drainage plates 1 is reduced; (3) compare in traditional drainage plate 1 structure, this application only needs to change bolt 2 to change drainage plate 1, and not change drainage plate 1, the mounting method of this application is identical completely with traditional drainage plate 1 moreover, and the field construction personnel need not extra training and can master the mounting method, have change with low costs, simple structure and simple to operate's advantage.
Further, in this embodiment, the first permanent magnet and the second permanent magnet are specifically alnico magnet, ferrite magnet or ndfeb magnet, and no matter whether alnico magnet, ferrite magnet or ndfeb magnet is adopted as the permanent magnet, the magnetic conduction function is good. The high-temperature-resistant AlNiCo magnet is preferably adopted in the application, the influence of the heat generation of the flow guide plate on the magnetic field can be reduced, wherein the AlNiCo magnet mainly comprises 8% of Al, 16% of Ni, 24% of Co, 3% of Cu and 1% of Ti, and the balance of Fe. The maximum energy product of the permanent magnetic material used in the method is 3.8 megagaau-oesteds, the coercivity is 770oersted, the Curie temperature is 850 ℃, and the maximum working temperature is 520 ℃. More specifically, in order to ensure that the bolt head 21 and the nut 3 can attract each other during installation, a permanent magnet may be added to the bolt head 21 and the nut 3, or the bolt head 21 and the nut 3 may be directly made of a permanent magnet material, and after installation, the magnetic poles of the end surfaces of the bolt head 21 and the nut 3 which are close to each other are ensured to be opposite.
Further, in the present embodiment, the magnetic shape memory alloy is mainly made of 50.2 to 52.2 mass% of Ni, 23.8 to 25.8 mass% of Mn, and 23 to 25 mass% of Ga. The magnetic shape memory alloy is an alloy material which can completely eliminate the deformation of the magnetic shape memory alloy at a lower temperature after being heated and heated under the action of an external magnetic field and recover the original shape of the magnetic shape memory alloy before the deformation. And compare with ordinary memory alloy, have the fast characteristics of shape recovery speed to can in time warp restriction nut 3 and outwards become flexible when two drainage plates 1 generate heat, thereby guarantee to continue to keep fastening sealed between two drainage plates 1, prevent effectively that two drainage plates 1 from further generating heat.
Further, in the present embodiment, the transition temperature of the magnetic shape memory alloy is 45 ℃ to 50 ℃. The alloy is processed to a certain shape above the transformation temperature, then cooled to below the transformation temperature, and after artificially changing its shape, it is reheated to above the transformation temperature under the action of an applied magnetic field, and the alloy automatically returns to the original shape processed above the transformation temperature.
More specifically, referring to fig. 2, when the temperature is above the transition temperature, the limiting rod 4 is bent; the bent limiting rod 4 in the drawing 2 is cooled to a temperature lower than the transition temperature, then the limiting rod 4 is changed into a straight line shape in the drawing 3 through external force, the limiting rod 4 is in the straight line shape in the normal temperature state, and when the limiting rod 4 is heated by heat generated by the drainage plate 1, the limiting rod 4 is restored to the state in the drawing 2.
Further, in the present embodiment, please refer to fig. 2 and fig. 4, the number of the limiting rods 4 on the bolt 2 may be 1, and the number of the limiting rods 4 may also be 2. Wherein, 2 gag lever posts 4 are preferably installed to the tip of bolt 2, and the second end of the gag lever post 4 of two high temperature looks deviates from each other and outwards extends. Set up like this and can generate heat when drainage plate 1 and surpass magnetism transition temperature, the automatic bifurcation of second end of two gag lever posts 4 compares in 1 gag lever post 4, and 2 gag lever posts 4 can play better limiting displacement to nut 3 to prevent effectively that nut 3 is outwards not hard up, can play good effect from the fastening.
More specifically, fig. 1 is a schematic view illustrating two drainage plates 1 fastened by bolts 2 and nuts 3 at normal temperature; fig. 4 is a schematic diagram showing that when two drainage plates 1 are heated, the limiting rod 4 made of magnetic shape memory alloy can be automatically deformed to achieve self-fastening.
Further, in this embodiment, when the gasket 5 is not used, the sum of the thickness of the drainage plate 1 which is 2 times the thickness of the nut 3 is equal to the length of the stud 22, that is, the sum of the thicknesses of the nut 3 sleeved on the bolt 2 and the two drainage plates 1 is equal to the length of the stud 22. On the one hand, the nut 3 needs to be in threaded connection with the stud 22, so that the effect of fastening and sealing can be achieved on the two drainage plates 1, the length of the stud 22 is larger than the sum of the thicknesses of the two drainage plates 1, on the other hand, the two drainage plates 1 generate heat to enable the limiting rod 4 to deform, the deformed limiting rod 4 needs to achieve the self-fastening effect through abutting against the nut 3, and therefore the sum of 2 times of the thicknesses of the nut 3 and the drainage plate 1 needs not to be smaller than the length of the stud 22. In order to ensure that the internal threads on the nut 3 are all connected with the bolt 2, the sum of the thickness of the drainage plate 1 which is 2 times of the thickness of the nut 3 and the thickness of the stud 22 is optimally set to be equal to the length of the stud 22, so that after the limiting rod 4 is arranged to be deformed by heating, the deformed limiting rod 4 can well limit the nut 3 to be loosened outwards, and the best self-fastening effect is achieved.
Further, in the present embodiment, please refer to fig. 1 and 4, the fastening assembly further includes a gasket 5, the gasket 5 is movably sleeved on the stud 22, and the gasket 5 may be disposed between the bolt head 21 and the drainage plate 1, or between the nut 3 and the drainage plate 1. The setting of gasket 5 can increase bolt head 21 (or nut 3) and drainage plate 1 area of contact, reduces the pressure between bolt head 21 and the drainage plate 1, is favorable to preventing to take place to become flexible between bolt head 21 and the drainage plate 1. In addition, because the machined surface cannot be perfect, the use of the gasket 5 can fill up irregular surfaces, which is beneficial for the bolt head 21 to be in close contact with the drainage plate 1.
Further, in the present embodiment, the sum of 2 times the thickness of the flow guide plate 1 and the thickness of the nut 3 is equal to the difference between the length of the stud 22 and the thickness of the washer 5. The optimal scheme after the gasket 5 is added is that the sum of 2 times of the thickness of the drainage plate 1 and the thickness of the nut 3 is set to be equal to the difference between the length of the stud 22 and the thickness of the gasket 5, namely the sum of the drainage plate 1, the nut 3 and the gasket 5 which are sleeved on the bolt 2 is equal to the length of the stud 22, and therefore after the limiting rod 4 is arranged to be deformed by heating, the deformed limiting rod 4 can well limit the nut 3 to be loosened outwards, and the optimal self-fastening effect is achieved.
Further, in the present embodiment, the first permanent magnet is detachably attached to the bolt head 21, and the second permanent magnet is detachably attached to the nut 3. Compare and connect through bolt 2 and nut 3 in traditional drainage plate 1, the setting of this application through the permanent magnet and the setting of gag lever post 4 can avoid drainage plate 1 contact failure to generate heat effectively to can prolong drainage plate 1's life, but drainage plate 1, bolt 2 and nut 3 itself still have life. When the drainage plate 1, the bolt 2 and the nut 3 rust and need to be replaced, the first permanent magnet and the second permanent magnet at the bolt head 21 and the nut 3 can be detached and recycled, and resources can be maximally utilized.
Further, in the present embodiment, referring to fig. 5, the number of the fastening assemblies is at least 2, and the fastening assemblies are uniformly distributed on the drainage plate 1. In order to ensure the fastening and sealing effects of the fastening assembly on the two drainage plates 1, a plurality of groups of fastening assemblies are often adopted, and through the mutual limiting effect of the plurality of groups of fastening assemblies, looseness between the two drainage plates 1 can be effectively avoided, and the air tightness between the two drainage plates 1 is ensured. In addition, when the deformed bolt 2 and nut 3 are disassembled, please refer to fig. 6, the limiting rod 4 may be cooled at a low temperature, and then the limiting rod 4 is straightened by a wrench, so that the nut 3 and the bolt 2 can be disassembled.
More specifically, the external dimension specifications of the bolt 2 and the nut 3 are optimally selected from the hexagonal-head bolts 2 with the specifications of M14 and M16 in the national standard GB/T1228-2006, and the used flow guide plate 1 is optimally selected from the strain clamp (bolt type) flow guide plate 1 defined in GB/T2320.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The drainage plate is characterized by comprising a fastening assembly and two drainage plates;
the two drainage plates are provided with corresponding mounting holes;
the fastening assembly comprises a bolt and a nut, wherein an external thread is arranged on the periphery of the bolt, and an internal thread matched with the external thread is arranged on the inner wall of the nut;
the bolt head of the bolt is provided with a first permanent magnet, and the nut is provided with a second permanent magnet;
the end part of the bolt, which is far away from the bolt head, is provided with a limiting rod, and the limiting rod is made of magnetic shape memory alloy;
the high-temperature phase of the limiting rod is in a bent shape, the first end of the limiting rod is connected with the end part of the bolt, and the second end of the limiting rod extends outwards to form a bent structure;
the low-temperature phase form of the limiting rod is linear;
the limiting rod and the stud of the bolt in the low-temperature phase penetrate through the mounting hole to be fixedly connected with the nut, so that the first permanent magnet and the second permanent magnet are mutually attracted, and the two drainage plates are abutted between the bolt head and the nut, so that the two drainage plates are fastened and sealed;
the temperature that two drainage plates generate heat and produce is greater than the transition temperature of gag lever post, the gag lever post changes from low temperature looks form into high temperature looks form to order about the gag lever post butt the nut, make two keep fastening sealed between the drainage plate.
2. The drainage plate of claim 1, wherein the number of the limiting rods is two, and the second ends of the limiting rods of the two high-temperature phases extend away from each other.
3. The drainage plate of claim 1, wherein the sum of 2 times the thickness of the drainage plate and the thickness of the nut is equal to the length of the stud.
4. The drainage plate of claim 1, wherein the fastening assembly further comprises a washer movably fitted over the stud, the washer being disposed between the bolt head and the drainage plate or between the nut and the drainage plate.
5. The drainage plate of claim 4, wherein the sum of 2 times the thickness of the drainage plate and the thickness of the nut is equal to the difference between the length of the stud and the thickness of the spacer.
6. The flow guide plate of claim 1, wherein the first permanent magnet is removably coupled to the bolt head and the second permanent magnet is removably coupled to the nut.
7. The flow diverter plate of claim 1, wherein the first and second permanent magnets are specifically alnico, ferrite, or ndfeb magnets.
8. The flow guide plate of claim 1, wherein the magnetic shape memory alloy is made primarily of 50.2-52.2% Ni, 23.8-25.8% Mn, and 23-25% Ga by mass.
9. The flow guide plate of claim 8, wherein the magnetic shape memory alloy has a transition temperature of 45 ℃ to 50 ℃.
10. The drainage plate of any of claims 1 to 9, wherein the number of fastening assemblies is at least 2, and each fastening assembly is uniformly distributed on the drainage plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911379911.9A CN110994516A (en) | 2019-12-27 | 2019-12-27 | Drainage plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911379911.9A CN110994516A (en) | 2019-12-27 | 2019-12-27 | Drainage plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110994516A true CN110994516A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911379911.9A Pending CN110994516A (en) | 2019-12-27 | 2019-12-27 | Drainage plate |
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| Country | Link |
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| CN (1) | CN110994516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520381A (en) * | 2020-04-30 | 2020-08-11 | 广东电网有限责任公司东莞供电局 | Bolt assembly and primary equipment |
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| CN110594249A (en) * | 2019-10-15 | 2019-12-20 | 广东电网有限责任公司 | Fastener for wire clamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869461A (en) * | 2006-05-21 | 2006-11-29 | 张连墩 | Magnetic vibration resistance anti-loosening bolt and net |
| CN201041184Y (en) * | 2007-01-22 | 2008-03-26 | 赵鹤翔 | Magnetic screw bolt |
| CN108060341A (en) * | 2017-12-25 | 2018-05-22 | 大连大学 | A kind of high tenacity Ni50Mn25Ga25Memorial alloy and preparation method thereof |
| CN110594249A (en) * | 2019-10-15 | 2019-12-20 | 广东电网有限责任公司 | Fastener for wire clamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111520381A (en) * | 2020-04-30 | 2020-08-11 | 广东电网有限责任公司东莞供电局 | Bolt assembly and primary equipment |
| CN111520381B (en) * | 2020-04-30 | 2022-01-18 | 广东电网有限责任公司东莞供电局 | Bolt assembly and primary equipment |
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Application publication date: 20200410 |