CN109410700B - Automatic experimental apparatus for electric power system - Google Patents
Automatic experimental apparatus for electric power system Download PDFInfo
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- CN109410700B CN109410700B CN201811320347.9A CN201811320347A CN109410700B CN 109410700 B CN109410700 B CN 109410700B CN 201811320347 A CN201811320347 A CN 201811320347A CN 109410700 B CN109410700 B CN 109410700B
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Abstract
Automatic experimental apparatus of electric power system, main part and wire including the automatic experimental apparatus of electric power system, be equipped with the operation panel in the main part, operation panel top fixed mounting operation panel, operation panel upper portion installation several clamping device, clamping device includes the standpipe, two first annular slabs of fixed suit in the standpipe upper end, leave the interval between two first annular slabs, first annular guide way is all seted up near outer lane department to two faces that first annular slabs are relative, four sliders of cooperation installation between two first annular guide ways, the slider can slide along first annular guide way. The invention makes the traditional automatic experimental device of the electrical system more convenient to use and fix other electrical elements to be installed, leads for connecting the electrical elements are convenient to arrange and store, and the electrical elements and the leads required by the experiment can be conditioned, thereby helping students to understand the experimental principle more clearly.
Description
Technical Field
The invention belongs to the technical field of electric power system experimental equipment, and particularly relates to an automatic experimental device for an electric power system.
Background
The student can meet different electricity experiments in electricity study's in-process often, different electricity experiment circuit connection mode and different electric elements, in electricity course, electron electrician is as the course of must repairing of a lot of specialty, often need students to carry out electricity experiment, such as circuit analysis, motor rotational speed analysis etc., however, traditional electric system automation experimental apparatus majority does not have the function of conveniently fixing to electric elements, be unfavorable for electric elements' neatly putting, the wire is comparatively in disorder in the experimentation, be unfavorable for going on in order of experiment, the arrangement and the accomodating of wire are also not convenient enough after the experiment finishes, be unfavorable for the arrangement in laboratory.
Disclosure of Invention
The invention provides an automatic experimental device for an electric power system, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
an automatic experimental device of an electric power system comprises a main body and a lead of the automatic experimental device of the electric power system, an operating table is arranged on the main body, an operating plate is fixedly installed at the top of the operating table, a plurality of clamping devices are installed at the upper part of the operating plate, the clamping devices comprise vertical pipes, two first annular plates are fixedly sleeved on the upper ends of the vertical pipes, an interval is reserved between the two first annular plates, first annular guide grooves are formed in the positions, close to the outer ring, of the opposite surfaces of the two first annular plates, four sliding blocks are installed between the two first annular guide grooves in a matched mode and can slide along the first annular guide grooves, first through holes are formed in the middles of the inner side surfaces of the sliding blocks, transverse first screw rods are installed in the first through holes, first internal threaded pipes are sleeved on the inner ends of the first screw rods in a matched mode, four transverse strip-shaped through grooves are formed in the positions, close, the strip-shaped through groove is positioned at the center height between the two first annular plates, the inner ends of the first internal thread pipes penetrate through the corresponding strip-shaped through grooves and then are positioned inside the vertical pipe, the positions, close to the inner ring, of the opposite surfaces of the two first annular plates are provided with second annular guide grooves, the first internal thread pipes are provided with limiting slide blocks through bearings, the upper ends and the lower ends of the limiting slide blocks are inserted into the corresponding second annular guide grooves, vertical shafts are arranged in the vertical pipe, the lower ends of the vertical shafts are fixedly connected with the upper end of a telescopic rod, the lower end of the telescopic rod is movably connected with a lower end bearing in the vertical pipe, the upper ends of the vertical shafts are fixedly provided with driving bevel gears, the inner ends of the first internal thread pipes are fixedly provided with driven bevel gears; a lead containing device is arranged in the vertical pipe and comprises a sleeve, two second annular plates, a gear and a ring gear, the sleeve is sleeved at the middle position of the vertical shaft, the second annular plates are symmetrically and fixedly arranged at the upper end and the lower end of the sleeve, the outer ring of the second annular plate is movably connected with the inner wall bearing of the vertical pipe, the ring gear is fixedly arranged at the inner ring of the second annular plate at the upper part, the teeth of the ring gear face inwards, the gear is fixedly arranged on the vertical shaft and is positioned at the upper side of the ring gear, the gear can be meshed and matched with the ring gear, two line holes are formed in the positions, corresponding to the lead containing device, of the side surface of the vertical pipe and are positioned between the two second annular plates, the middle position of the lead is fixedly connected with the side part of the sleeve, the two ends of the lead are wound on; two second strip-shaped through grooves are symmetrically formed in the side face, close to the lower end, of the vertical pipe, the second strip-shaped through grooves are transverse, clamping portions are mounted at the outer ends of the first screws, and the included angle between every two adjacent first screws is alpha.
According to the automatic experimental device for the power system, the guide pipes are fixedly installed in the first through holes, the first screws are all located in the corresponding guide pipes, the side portions of the first screws are provided with the long grooves formed along the length of the first screws, the inserting blocks are fixedly installed in the guide pipes, and the inserting blocks are all inserted into the corresponding long grooves.
According to the automatic experimental device for the power system, the clamping part comprises a second internal thread pipe, a second screw and a clamping block, the second internal thread pipe is vertical, the second internal thread pipe is fixedly arranged at the outer end of the corresponding first screw, the second screw is arranged in the corresponding second internal thread pipe in a matching manner, and the clamping block is fixedly arranged at the upper end of the corresponding second screw.
According to the automatic experimental device for the power system, the rubber anti-skid pad is fixedly arranged on the inner side of the clamping block.
According to the automatic experimental device for the power system, the rotating wheel is fixedly installed at the lower end of the vertical shaft, and the rotating wheel and the second strip-shaped through groove are the same in height.
According to the automatic experimental device for the power system, the periphery of the rotating wheel is provided with a plurality of anti-skid lines which are uniformly distributed.
According to the automatic experimental device for the power system, the top surface of the operating panel is provided with a plurality of uniformly distributed positioning holes, the lower end surface of the vertical pipe is fixedly provided with a plurality of uniformly distributed positioning rods, and the positioning rods can be in plug-in fit with the corresponding positioning holes.
According to the automatic experimental device for the power system, the lead wire accommodating devices are provided with a plurality of groups.
The invention has the advantages that: the invention makes the traditional automatic experimental device of the electrical system more convenient to use and fix other electrical elements to be installed, leads for connecting the electrical elements are convenient to arrange and store, and the electrical elements and the leads required by the experiment can be conditioned, thereby helping students to understand the experimental principle more clearly. When an experiment is carried out, a needed electric element is placed on the upper portion of the first annular plate on the upper portion, a user stretches a finger into the second strip-shaped groove to pinch the vertical shaft and enable the vertical shaft to rotate, the vertical shaft is meshed and matched with the driven bevel gear through the driving bevel gear to drive all the first internal threaded pipes to rotate simultaneously, under the action of thread matching, the first screw rod moves towards the inner end direction of the corresponding first internal threaded pipe, the first screw rod drives the corresponding clamping portion to move, the plurality of clamping portions move towards the central axis direction of the vertical pipe simultaneously to tighten the corresponding electric element, if the shell of the electric element is not very regular, the position where the clamping portion is in contact with the electric element is not the optimal clamping position, the included angle between two adjacent first screw rods can be adjusted to be alpha, when the angle alpha is adjusted, the corresponding sliding block slides along the first annular guide groove, the limiting sliding block slides along the second annular guide groove, the limiting slide block can ensure that the corresponding first internal thread pipe can not move along the length direction, the slide block and the limiting slide block can ensure that the moving tracks of the corresponding first screw rod and the corresponding first internal thread pipe can keep stable, the first screw rod and the first internal thread pipe can not shake after the angle is adjusted, the clamping part can be in better contact with the shell of the electric element after the angle of the first screw rod is adjusted, the electric element can be better tightened, the electric element is fixed, then the vertical shaft is moved downwards, the driving bevel gear is separated from the driven bevel gear at the moment, the lead is drawn out from the corresponding wire hole through manual traction, as the two ends of the lead are wound on the corresponding sleeve according to the same direction, the sleeve can be driven to rotate towards one direction when the two ends of the lead are drawn out from different wire holes, and the connection of the electric element and a main body or other electric elements can be realized through the plug, after the experiment, make the vertical axis move down and drive gear and ring gear meshing cooperation, then rotate the vertical axis and drive the sleeve pipe reversal and can pack up the wire and twine its lateral part again, accomodating of realization wire that can be quick, the combination of the quick fixed function of accomodating function and electric elements of wire fast has been realized through above-mentioned design, moreover, the steam generator is simple in structure, and the design is ingenious, it is well in order more on the operation panel during messenger's experiment, the wire is no longer in disorder, be difficult to arrange in order, be convenient for go on in order of electric experiment, be difficult for makeing mistakes, be favorable to the understanding of student to the experiment content more, make the follow-up convenience more of.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of a portion I of FIG. 1; FIG. 3 is a partial enlarged view of section II of FIG. 2; FIG. 4 is a partial enlarged view of section III of FIG. 2; FIG. 5 is an enlarged view of the view from the direction A of FIG. 2; FIG. 6 is an enlarged view of the view of FIG. 3 taken along line B; fig. 7 is a partially enlarged view of the portion iv of fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
An automatic experimental device of an electric power system comprises a main body 1 and a lead 24 of the automatic experimental device of the electric power system, wherein an operation table 2 is arranged on the main body 1, an operation plate 3 is fixedly arranged at the top of the operation table 2, a plurality of clamping devices are arranged on the upper part of the operation plate 3, each clamping device comprises a vertical pipe 4, two first annular plates 5 are fixedly sleeved at the upper end of the vertical pipe 4, a gap is reserved between the two first annular plates 5, first annular guide grooves 6 are respectively arranged at the positions, close to the outer ring, of the opposite surfaces of the two first annular plates 5, four sliding blocks 7 are arranged between the two first annular guide grooves 6 in a matching way, the sliding blocks 7 can slide along the first annular guide grooves 6, first through holes 8 are respectively arranged in the middles of the inner side surfaces of the sliding blocks 7, transverse first screw rods 9 are respectively arranged in the first through holes 8, first internal threaded pipes 10 are respectively sleeved at the inner ends of the first screw rods 9, four transverse strip-shaped through grooves 11 are uniformly distributed by taking the central axis of a vertical pipe 4 as a center, the strip-shaped through grooves 11 are positioned at the central height position between two first annular plates 5, the inner ends of first internal threaded pipes 10 penetrate through the corresponding strip-shaped through grooves 11 and then are positioned in the vertical pipe 4, second annular guide grooves 12 are respectively formed in the positions, close to inner rings, of the opposite surfaces of the two first annular plates 5, limiting sliders 13 are respectively installed on the first internal threaded pipes 10 through bearings, the upper ends and the lower ends of the limiting sliders 13 are respectively inserted into the corresponding second annular guide grooves 12, vertical shafts 14 are arranged in the vertical pipe 4, the lower ends of the vertical shafts 14 are fixedly connected with the upper ends of telescopic rods 17, the lower ends of the telescopic rods 17 are movably connected with the bearings at the inner ends of the vertical pipes 4, driving bevel gears 15 are fixedly installed at the upper ends of the vertical shafts 14, driven bevel gears 16 are fixedly installed at the inner ends; a lead storage device is arranged in the vertical pipe 4 and comprises a sleeve 18, two second annular plates 19, a gear 21 and a ring gear 20, the sleeve 18 is sleeved at the middle position of the vertical shaft 14, the second annular plates 19 are symmetrically and fixedly installed at the upper end and the lower end of the sleeve 18, the outer ring of the second annular plate 19 is movably connected with an inner wall bearing of the vertical pipe 4, the ring gear 20 is fixedly installed at the inner ring of the second annular plate 19 at the upper part, the teeth of the ring gear 20 face inwards, the gear 21 is fixedly installed on the vertical shaft 14 and is positioned at the upper side of the ring gear 20, the gear 21 can be meshed and matched with the ring gear 20, two line holes 23 are formed in the side surface of the vertical pipe 4 corresponding to the lead storage device, the line holes 23 are positioned between the two second annular plates 19, the middle position of the lead 24 is fixedly connected with the side parts of the sleeve 18, two ends of the lead, the plugs 25 are respectively positioned outside the corresponding wire holes 23; two second strip-shaped through grooves 22 are symmetrically formed in the side surface of the vertical pipe 4 close to the lower end of the vertical pipe, the second strip-shaped through grooves 22 are transverse, clamping parts 26 are mounted at the outer ends of the first screws 9, and the included angle between every two adjacent first screws 9 is alpha. The invention makes the traditional automatic experimental device of the electrical system more convenient to use and fix other electrical elements to be installed, leads for connecting the electrical elements are convenient to arrange and store, and the electrical elements and the leads required by the experiment can be conditioned, thereby helping students to understand the experimental principle more clearly. When in experiment, the needed electric element is placed on the upper part of the first annular plate 5 on the upper part, a user extends a finger into the second strip-shaped groove 22 to pinch the vertical shaft 14 and enable the vertical shaft 14 to rotate, the vertical shaft 14 is meshed with the driven bevel gear 16 through the driving bevel gear 15 to drive all the first internal threaded pipes 10 to rotate simultaneously, under the action of thread matching, the first screw rods 9 move towards the inner end directions of the corresponding first internal threaded pipes 10, the first screw rods 9 drive the corresponding clamping parts 26 to move, the plurality of clamping parts 26 move towards the central axis direction of the vertical pipe 4 simultaneously to tighten the corresponding electric element, if the shell of the electric element is not very regular, the contact position of the clamping parts 26 and the electric element is not the optimal clamping position, the included angle between two adjacent first screw rods 9 can be adjusted to be alpha, when the angle alpha is adjusted, the corresponding slide block 7 slides along the first annular guide groove 6, the limiting slide block 13 slides along the second annular guide groove 12, the limiting slide block 13 can ensure that the corresponding first internal thread pipe 10 cannot move along the length direction of the first internal thread pipe, the slide block 7 and the limiting slide block 13 can ensure that the moving track of the corresponding first screw rod 9 and the corresponding first internal thread pipe 10 is kept stable, the first screw rod 9 and the first internal thread pipe 1 cannot shake after the angle is adjusted, the clamping part 26 is in better contact with the shell of the electric element after the angle of the first screw rod 9 is adjusted, the electric element is better tightened, the electric element is fixed, then the vertical shaft 14 moves downwards, the driving bevel gear 15 is separated from the driven bevel gear 16 at the moment, the lead 24 is pulled out from the corresponding wire hole 23 through manual traction, because the two ends of the lead 24 are wound on the corresponding sleeve 18 according to the same direction, the sleeve 18 can be driven to rotate towards one direction when the two ends of the lead 24 are pulled out from different wire holes 23, can realize being connected of electric elements and main part 1 or other electric elements through plug 25, after the experiment, make vertical axis 14 move down and drive gear 21 and the meshing cooperation of ring gear 20, then it drives the reversal of sleeve pipe 18 and can pack up wire 24 and twine its lateral part again to rotate vertical axis 14, the accomodating of realization wire that can be quick, the function of accomodating fast of wire and electric elements's quick fixed function's combination has been realized through above-mentioned design, moreover, the steam generator is simple in structure, and the design is ingenious, make in operation panel 2 when the experiment in good order more, the wire is no longer in disorder, be difficult to arrange in order, be convenient for going on in order of electric experiment, be difficult for makeing mistakes, be more favorable to the understanding of student to the experimental content, make the convenience more of the follow.
Specifically, as shown in the drawings, in the present embodiment, the guide pipes 27 are fixedly installed in the first through holes 8, the first screws 9 are all located inside the corresponding guide pipes 27, the side portions of the first screws 9 are provided with long grooves 28 formed along the length thereof, the insertion blocks 29 are fixedly installed inside the guide pipes 27, and the insertion blocks 29 are all inserted into the corresponding long grooves 28. The guide pipe 27 can ensure the stability of the first screw 9 during extension and retraction and avoid the rotation of the first screw 9, so that the invention is more convenient to use.
Specifically, as shown in the drawings, the clamping portion 26 according to the present embodiment includes a second internally threaded tube 30, a second screw 31 and a clamping block 32, the second internally threaded tube 30 is vertical, the second internally threaded tube 30 is fixedly mounted at the outer end of the corresponding first screw 9, the second screw 31 is mounted inside the corresponding second internally threaded tube 30 in a matching manner, and the clamping block 32 is fixedly mounted at the upper end of the corresponding second screw 31. The second screw 31 can move up and down in the corresponding second internal threaded tube 30, so as to drive the corresponding clamping block 32 to move up and down, and the size of the clamped electric element can be specifically adjusted.
Further, as shown in the figure, a rubber mat 33 is fixedly installed on the inner side of the clamping block 32 according to the embodiment. The rubber anti-slip pad 33 can increase the friction force between the electric element and the rubber anti-slip pad, and can improve the installation stability of the electric element.
Furthermore, as shown in the drawings, a rotating wheel 34 is fixedly installed at the lower end of the vertical shaft 14 in the embodiment, and the height of the rotating wheel 34 is the same as that of the second strip-shaped through groove 22. The user can operate the vertical shaft 14 through the rotating wheel 34, and the use is more convenient.
Furthermore, as shown in the figure, the periphery of the rotating wheel 34 of the embodiment is provided with a plurality of anti-skid threads 35 which are uniformly distributed. The anti-slip pattern 35 can increase the friction between the wheel 34 and the user's finger, so that the wheel 34 can be rotated more conveniently.
Furthermore, as shown in the figure, the top surface of the operation plate 3 according to the embodiment is provided with a plurality of positioning holes 36 which are uniformly distributed, a plurality of positioning rods 37 which are uniformly distributed are fixedly installed on the lower end surface of the vertical tube 4, and the positioning rods 37 can be inserted into and matched with the corresponding positioning holes 36. Through the inserting and matching of the positioning rod 37 and the positioning hole 36, the mounting stability between the clamping device and the operating panel 3 can be improved, the mounting position of the clamping device on the operating panel 3 can be changed at any time according to needs, the clamping device can be detached and mounted at any time, and the use is more convenient.
Furthermore, the wire accommodating device of the present embodiment has a plurality of sets. The multi-group wire storage device can store a plurality of wires, and is convenient for the requirement of the plurality of wires in the experiment.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. Automatic experimental apparatus of electric power system, its characterized in that: the device comprises a main body (1) and a lead (24) of an automatic experimental device of an electric power system, wherein the main body (1) is provided with an operating table (2), the top of the operating table (2) is fixedly provided with an operating plate (3), the upper part of the operating plate (3) is provided with a plurality of clamping devices, each clamping device comprises a vertical pipe (4), two first annular plates (5) are fixedly sleeved at the upper end of the vertical pipe (4), a gap is reserved between the two first annular plates (5), first annular guide grooves (6) are respectively formed at the positions, close to the outer ring, of the opposite surfaces of the two first annular plates (5), four sliding blocks (7) are arranged between the two first annular guide grooves (6) in a matching way, the sliding blocks (7) can slide along the first annular guide grooves (6), first through holes (8) are respectively formed in the middles of the inner side surfaces of the sliding blocks (7), transverse first screw rods (9) are respectively arranged in the first through holes (8), the inner ends, the side of the vertical pipe (4) is close to the upper end and is provided with four transverse strip-shaped through grooves (11), the four transverse strip-shaped through grooves (11) are uniformly distributed by taking the central axis of the vertical pipe (4) as the center, the strip-shaped through grooves (11) are positioned at the position of the central height between the two first annular plates (5), the inner ends of the first internal threaded pipes (10) are positioned in the vertical pipe (4) after passing through the corresponding strip-shaped through grooves (11), the opposite surfaces of the two first annular plates (5) are provided with second annular guide grooves (12) close to the inner rings, the first internal threaded pipes (10) are provided with limit sliders (13) through bearings, the upper ends and the lower ends of the limit sliders (13) are inserted into the corresponding second annular guide grooves (12), vertical shafts (14) are arranged in the vertical pipe (4), the lower ends of the vertical shafts (14) are fixedly connected with the upper end of a telescopic rod (17), the lower end of the telescopic rod (17) is movably connected, a driving bevel gear (15) is fixedly mounted at the upper end of the vertical shaft (14), driven bevel gears (16) are fixedly mounted at the inner ends of the first internal threaded pipes (10), and the driving bevel gear (15) can be meshed and matched with the driven bevel gears (16); set up wire storage device in standpipe (4), wire storage device includes sleeve pipe (18), two second annular plates (19), gear (21), ring gear (20), sleeve pipe (18) are established to vertical axis (14) intermediate position cover, the upper and lower both ends symmetry fixed mounting second annular plate (19) of sleeve pipe (18), the outer lane of second annular plate (19) and the inner wall bearing swing joint of standpipe (4), inner circle fixed mounting ring gear (20) of second annular plate (19) on upper portion, the tooth of ring gear (20) is inside, fixed mounting gear (21) on vertical axis (14), gear (21) are located the upside of ring gear (20), gear (21) can mesh with ring gear (20) and cooperate, two line hole (23) are seted up to standpipe (4) side corresponding wire storage device's position, line hole (23) are located between two second annular plates (19), the middle position of the lead (24) is fixedly connected with the side part of the sleeve (18), two ends of the lead (24) are wound on the corresponding sleeve (18) according to the same direction, plugs (25) are fixedly arranged at two ends of the lead (24), and the plugs (25) are respectively positioned outside the corresponding wire holes (23); two second strip-shaped through grooves (22) are symmetrically formed in the side face of the vertical pipe (4) close to the two sides of the lower end of the vertical pipe, the second strip-shaped through grooves (22) are transverse, the outer ends of the first screws (9) are provided with clamping parts (26), and the included angle between every two adjacent first screws (9) is alpha.
2. The power system automation experimental device of claim 1, characterized in that: the guide pipe (27) is fixedly installed in the first through hole (8), the first screw rods (9) are located inside the corresponding guide pipes (27), the side portions of the first screw rods (9) are provided with long grooves (28) which are formed along the length of the first screw rods, the inserting blocks (29) are fixedly installed inside the guide pipes (27), and the inserting blocks (29) are inserted into the corresponding long grooves (28).
3. The power system automation experimental device of claim 1, characterized in that: clamping part (26) include second internal thread pipe (30), second screw rod (31) and centre gripping piece (32), second internal thread pipe (30) are vertical, second internal thread pipe (30) fixed mounting is in the outer end of corresponding first screw rod (9), inside second internal thread pipe (30) that corresponds was installed in the cooperation of second screw rod (31), centre gripping piece (32) fixed mounting is in the upper end of second screw rod (31) that corresponds.
4. The power system automation experimental device of claim 3, characterized in that: and a rubber non-slip mat (33) is fixedly arranged on the inner side of the clamping block (32).
5. The power system automation experimental device of claim 1, characterized in that: the lower end of the vertical shaft (14) is fixedly provided with a rotating wheel (34), and the rotating wheel (34) and the second strip-shaped through groove (22) have the same height.
6. The power system automation experimental device of claim 5, characterized in that: the periphery of the rotating wheel (34) is provided with a plurality of anti-skid grains (35) which are uniformly distributed.
7. The power system automation experimental device of claim 1, characterized in that: the top surface of the operating plate (3) is provided with a plurality of uniformly distributed positioning holes (36), the lower end surface of the vertical tube (4) is fixedly provided with a plurality of uniformly distributed positioning rods (37), and the positioning rods (37) can be in inserted connection with the corresponding positioning holes (36).
8. The power system automation experimental device of claim 1, characterized in that: the wire containing device is provided with a plurality of groups.
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| CN201811320347.9A CN109410700B (en) | 2018-11-07 | 2018-11-07 | Automatic experimental apparatus for electric power system |
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| CN201811320347.9A CN109410700B (en) | 2018-11-07 | 2018-11-07 | Automatic experimental apparatus for electric power system |
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| CN109410700B true CN109410700B (en) | 2020-10-16 |
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| CN110706540B (en) * | 2019-10-18 | 2022-03-29 | 国家电网有限公司 | Dress table connects electric practice training platform |
| CN112164286A (en) * | 2020-09-23 | 2021-01-01 | 扬州胜文智能科技有限公司 | Power transmission line fault injection simulation device and use method |
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| CN1424179A (en) * | 2002-12-20 | 2003-06-18 | 陈晓峰 | Rotating disk style multi-position automative polisher |
| CN204504998U (en) * | 2015-02-12 | 2015-07-29 | 重庆三磨海达磨床有限公司 | Be applicable to the turntable of major diameter heavy duty tank body |
| CN206370198U (en) * | 2016-12-07 | 2017-08-01 | 苗乃吉 | A kind of display stand of historical teaching of high school |
| CN207037978U (en) * | 2017-05-03 | 2018-02-23 | 中职北方智扬(北京)教育科技有限公司 | Parts fixing device for automobile teaching |
| CN207991730U (en) * | 2018-03-20 | 2018-10-19 | 南通航运职业技术学院 | The stress detection device of steel construction |
| CN108674946A (en) * | 2018-07-26 | 2018-10-19 | 济南速雕数控机械有限公司 | A kind of discharging transfer device of Furniture panel |
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| CN109410700A (en) | 2019-03-01 |
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