CN108922303B - Electrical lightning protection display and practical training device for network engineering - Google Patents
Electrical lightning protection display and practical training device for network engineering Download PDFInfo
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- CN108922303B CN108922303B CN201810972531.5A CN201810972531A CN108922303B CN 108922303 B CN108922303 B CN 108922303B CN 201810972531 A CN201810972531 A CN 201810972531A CN 108922303 B CN108922303 B CN 108922303B
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- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
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- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
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Abstract
The utility model provides an electric lightning protection show of network engineering and real device of instructing, includes base, a plurality of vertical mounting panel and a plurality of lightning protection subassembly, and the base is inside cavity, and the base top is close to left end department fixed mounting first curb plate, and the base top is close to right end department fixed mounting second curb plate, and first curb plate is parallel with the second curb plate, and first curb plate is inside cavity, passes through diaphragm fixed connection between first curb plate and the second curb plate upper end, and the diaphragm top sets up the lightning rod. The lightning protection component comprises a lightning protection box, a lightning protection PDU (Power distribution Unit), a network socket, a threading pipe, a network lightning protection surge protection box, an equipotential connection terminal box, a network distribution frame and the like, so that the requirement of students on training of actual assembly operation of various lightning protection structures of a computer room can be met, different lightning protection components are very convenient and quick to mount and dismount, and the alternate practical operation training of multiple groups of students is facilitated.
Description
Technical Field
The invention belongs to the field of electrician electrical teaching practical training equipment, and particularly relates to a network engineering electrical lightning protection display and practical training device.
Background
In building construction power consumption, measures such as network lightning protection, electric lightning protection and outdoor lightning protection are used for carrying out lightning protection on a building system, the existing lightning protection devices are distributed in different places such as a power distribution room, a network management room and a data center machine room of a building, the lightning protection topological structure is too large, and the structure and the principle of the lightning protection system cannot be visually displayed. In the aspect of teaching and practical training, computer network major has not been solved deeply to computer lab electricity and lightning protection system, and these knowledge are especially important to students again, and the school often does not pay attention to the technical ability in this aspect and instructs in fact even when teaching, and the computer lab of practical application lightning protection technique is also not fit for carrying out electrician's lightning protection technical skill and instructs in fact, and the lightning protection subassembly dismouting on present network engineering electricity lightning protection show and the real device of instructing is inconvenient, is unfavorable for the student to practice training on the real classroom, and instructs the effect relatively poor in fact.
Disclosure of Invention
The invention provides an electrical lightning protection display and practical training device for network engineering, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
an electrical lightning protection display and practical training device for network engineering comprises a base, a plurality of vertical mounting plates and a plurality of lightning protection components, wherein the base is internally hollow, a first side plate is fixedly mounted at the top of the base close to the left end, a second side plate is fixedly mounted at the top of the base close to the right end, the first side plate is parallel to the second side plate, the first side plate is internally hollow, the upper ends of the first side plate and the second side plate are fixedly connected through a transverse plate, a lightning rod is arranged at the top of the transverse plate, a plurality of first through holes which are uniformly distributed up and down are formed in the middle of the right side surface of the first side plate, second through holes are formed in the left side surface of the first side plate corresponding to the first through holes, third through holes are formed in the lower end surface of the first side plate, fourth through holes are formed in the top surface of the base corresponding to the third through holes, vertical shafts are mounted in the first through, the transverse shaft is in contact fit with the inner side surfaces of the corresponding first through hole and the second through hole, the transverse shaft can move in the left-right direction, two ends of the transverse shaft are positioned outside the first side plate, a transverse transmission shaft is arranged between the transverse shaft and the vertical shaft, a sleeve is sleeved on the transmission shaft through a bearing, the sleeve is fixedly connected with the inner wall of the first side plate through a bracket, first bevel gears are symmetrically and fixedly arranged at the front end and the rear end of the transmission shaft, second bevel gears are fixedly arranged on the vertical shaft corresponding to the first bevel gears in height, the first bevel gear at the rear side is engaged and matched with the corresponding second bevel gear, two third bevel gears are fixedly arranged on the transverse shaft, the mounting directions of the two third bevel gears on the same transverse shaft are opposite, the third bevel gears can be engaged and matched with the corresponding first bevel gears, an external threaded pipe is sleeved at the right end of the transverse shaft, and the, the inner wall of the outer threaded pipe is provided with a strip-shaped guide groove, the right end side part of a cross shaft is fixedly provided with a guide block, the guide block is inserted into the corresponding guide groove, a first vertical plate is arranged between the first side plate and the second side plate and corresponds to the height of the cross shaft, a threaded blind hole is formed in the middle of the left end face of the first vertical plate, the right end of the outer threaded pipe is in threaded fit with the corresponding threaded blind hole, the right end of the first vertical plate is provided with a vertical slot, a second vertical plate is arranged in the slot, the right end of the second vertical plate is fixedly connected with the side part of the second side plate, the front side face of the first vertical plate is provided with a plurality of uniformly distributed first elliptical holes, the rear side face of the first vertical plate is provided with second elliptical holes corresponding to the first elliptical holes, the second vertical plate is provided with third elliptical holes corresponding to the first elliptical holes, the corresponding first elliptical holes, the second elliptical holes and the third elliptical holes, The oval major axis of third elliptical hole is horizontal, the vertical motor of bottom fixed mounting in the base, fixed mounting driving gear on the output shaft of motor, the lower extreme fixed mounting driven gear of vertical axis, driving gear and driven gear meshing cooperation, two inserted bars of rear side fixed mounting of mounting panel, the inserted bar can pass corresponding first elliptical hole, second elliptical hole, third elliptical hole in proper order, lightning protection subassembly fixed mounting is respectively in the front side of the mounting panel that corresponds.
As above electrical lightning protection showing and practical training device for network engineering, the lightning protection component comprises a lightning protection box, a lightning protection PDU, a network socket, a threading pipe, a network lightning protection surge protection box, an equipotential connection terminal box and a network distribution frame.
According to the electrical lightning protection display and practical training device for network engineering, the outer end of the transverse shaft is sleeved with the lantern ring through the bearing.
According to the electrical lightning protection display and practical training device for network engineering, the outer surface of the lantern ring is provided with the anti-skid grains.
According to the electrical lightning protection display and practical training device for network engineering, the upper side and the lower side of the inner end of the first through hole and the upper side and the lower side of the inner end of the second through hole are respectively provided with the elastic telescopic rod, the end part of the fixed rod of the elastic telescopic rod is fixedly connected with the inner wall of the first side plate, the end part of the movable rod of the elastic telescopic rod is respectively provided with the universal ball head, and the universal ball head is in contact fit with the corresponding side part of the third bevel gear.
According to the electrical lightning protection display and practical training device for network engineering, the foot switch is fixedly installed at the top of the base and connected with the motor.
According to the electrical lightning protection display and practical training device for the network engineering, the right end of the first vertical plate is fixedly connected with the second side plate through the transverse telescopic rod.
The invention has the advantages that: the lightning protection component comprises a lightning protection box, a lightning protection PDU (protocol data Unit), a network socket, a threading pipe, a network lightning protection surge protection box, an equipotential connection terminal box, a network distribution frame and the like, and can meet the requirement of students on training of actual assembly operation of various lightning protection structures of a computer room. The motor drives the vertical shaft to rotate by meshing and matching the driving gear and the driven gear, the vertical shaft drives the corresponding transmission shaft to rotate by meshing and matching the first bevel gear at the rear side with the corresponding second bevel gear, the first bevel gear at the front side rotates along with the first bevel gear, when a user pulls one of the cross shafts, the corresponding third bevel gear at the right side is meshed with the corresponding first bevel gear, at the moment, the first cross shaft rotates forwards, the first cross shaft drives the corresponding outer threaded pipe to rotate by matching the guide block and the guide groove, the outer threaded pipe can drive the corresponding first vertical plate to move rightwards under the thread matching, and when the first elliptical hole, the second elliptical hole and the corresponding third elliptical hole on the first vertical plate are completely aligned, the inserted rod at the rear side of the mounting plate sequentially penetrates through the corresponding first elliptical hole, the second elliptical hole and the third elliptical hole, then the cross shaft is pushed, at the moment, the corresponding third bevel gear at the left side is meshed with the corresponding first bevel gear, at the moment, the first cross shaft is reversed, the corresponding outer threaded pipe is reversed to drive the first vertical plate to move leftwards, the corresponding first elliptical hole and the second elliptical hole move along with the first cross shaft and are staggered with the corresponding third elliptical hole to clamp the corresponding insertion rod, the mounting plate can be quickly mounted on the lightning protection system by the operation, the mounting plate can be quickly mounted on the lightning protection system by moving the first vertical plate rightwards, the mounting and the dismounting of the mounting plate are very convenient and quick, the plurality of first vertical plates form a display wall, students can quickly mount different lightning protection components on the corresponding first vertical plates according to own design, then carry out standard electrical connection on the plurality of lightning protection components to form the lightning protection system, the lightning protection system can also be better displayed through the display wall and displayed for teachers and other students to watch, the next group of students can quickly dismount the previous group of lightning protection systems and design the own lightning protection system, the efficiency of the practical training classroom is improved, and unnecessary time is prevented from being wasted on the installation and the disassembly of the lightning protection assembly.
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 cross-sectional view taken along line A-A of FIG. 1; FIG. 3 is an enlarged view of the view of FIG. 1 taken along line B; FIG. 4 is an enlarged view of a portion I of FIG. 1; FIG. 5 is a partial enlarged view of section II of FIG. 1; fig. 6 is a partially enlarged view of the portion iii in fig. 3.
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 electrical lightning protection display and practical training device for network engineering comprises a base 1, a plurality of vertical mounting plates 31 and a plurality of lightning protection components 32, wherein the base 1 is hollow inside, a first side plate 2 is fixedly mounted at the position, close to the left end, of the top of the base 1, a second side plate 6 is fixedly mounted at the position, close to the right end, of the top of the base 1, the first side plate 2 is parallel to the second side plate 6, the first side plate 2 is hollow inside, the upper ends of the first side plate 2 and the second side plate 6 are fixedly connected through a transverse plate 3, a lightning rod 4 is arranged at the top of the transverse plate 3, a plurality of first through holes 5 which are uniformly distributed up and down are formed in the middle of the right side surface of the first side plate 2, second through holes 10 are formed in the left side surface of the first side plate 2 corresponding to the first through holes 5, third through holes 7 are formed in the lower end surface of the first side plate, the upper end of a vertical shaft 9 is movably connected with a top bearing in a first side plate 2, a first through hole 5 and a second through hole 10 which are the same in height penetrate through a transverse shaft 11, the transverse shaft 11 is in contact fit with the inner side surfaces of the corresponding first through hole 5 and the corresponding second through hole 10, the transverse shaft 11 can move in the left-right direction, two ends of the transverse shaft 11 are positioned outside the first side plate 2, a transverse transmission shaft 12 is arranged between the transverse shaft 11 and the vertical shaft 9, a sleeve 13 is sleeved on the transmission shaft 12 through a bearing, the sleeve 13 is fixedly connected with the inner wall of the first side plate 2 through a support 14, first bevel gears 15 are symmetrically and fixedly arranged at the front end and the rear end of the transmission shaft 12, second bevel gears 16 are fixedly arranged on the vertical shaft 9 corresponding to the height of the first bevel gears 15, the first bevel gears 15 at the rear side are engaged with the corresponding second bevel gears 16, two third bevel gears 17 are fixedly arranged on the transverse shaft 11, and, the third bevel gear 17 can be engaged with the corresponding first bevel gear 15, the right end of the cross shaft 11 is sleeved with an external threaded pipe 18, the left end of the external threaded pipe 18 is movably connected with the right end bearing of the corresponding first through hole 5, the inner wall of the external threaded pipe 18 is provided with a long guide groove 19, the right end side part of the cross shaft 11 is fixedly provided with a guide block 20, the guide block 20 is inserted into the corresponding guide groove 19, a first vertical plate 21 is arranged between the first side plate 2 and the second side plate 6 corresponding to the height of the cross shaft 11, the middle part of the left end surface of the first vertical plate 21 is provided with a threaded blind hole 22, the right end of the external threaded pipe 18 is in threaded fit with the corresponding threaded blind hole 22, the right end of the first vertical plate 21 is provided with a vertical slot 23, a second vertical plate 24 is arranged in the slot 23, the right end of the second vertical plate 24 is fixedly connected with the side part of the second side plate 6, the front side surface of, the second elliptical hole 26 is formed in the position, corresponding to the first elliptical hole 25, of the rear side face of the first vertical plate 21, the third elliptical hole 27 is formed in the position, corresponding to the first elliptical hole 25, of the second vertical plate 24, the corresponding first elliptical hole 25, the second elliptical hole 26 and the third elliptical hole 27 are communicated, the first elliptical hole 25, the second elliptical hole 26 and the elliptical long axis of the third elliptical hole 27 are horizontal, the vertical motor 28 is fixedly installed in the bottom of the base 1, the driving gear 29 is fixedly installed on the output shaft of the motor 28, the driven gear 30 is fixedly installed at the lower end of the vertical shaft 9, the driving gear 29 is meshed with the driven gear 30, the two insertion rods 33 are fixedly installed on the rear side of the mounting plate 31, the insertion rods 33 can sequentially penetrate through the corresponding first elliptical hole 25, the second elliptical hole 26 and the third elliptical hole 27, and the lightning protection component 32 is fixedly installed on the front side of the corresponding mounting plate 31 respectively. The lightning protection component 32 comprises a lightning protection box, a lightning protection PDU (Power distribution Unit), a network socket, a threading pipe, a network lightning protection surge protection box, an equipotential connection terminal box, a network distribution frame and the like, and can meet the requirement of students on training of actual assembly operation of various lightning protection structures of a computer room, the installation and disassembly of different lightning protection components 32 are very convenient and quick, the alternate practical operation training of multiple groups of students is facilitated, the students can use various lightning protection components to form different lightning protection systems such as a multistage lightning protection system, an outdoor lightning protection system, a network lightning protection system and the like, and the cognitive ability and the operation ability of the students can be effectively improved. The motor 28 is engaged with the driven gear 30 through the driving gear 29 to drive the vertical shaft 9 to rotate, the vertical shaft 9 is engaged with the corresponding second bevel gear 16 through the rear first bevel gear 15 to drive the corresponding transmission shaft 12 to rotate, the front first bevel gear 15 rotates along with the rotation, when a user pulls one of the transverse shafts 11, the corresponding third bevel gear 17 positioned on the right side is engaged with the corresponding first bevel gear 15, at the moment, the first transverse shaft 11 rotates forwards, the first transverse shaft 11 drives the corresponding external threaded pipe 18 to rotate through the cooperation of the guide block 20 and the guide groove 19, the external threaded pipe 18 can drive the corresponding first vertical plate 21 to move rightwards through the threaded fit, and when the first elliptical hole 25, the second elliptical hole 26 and the corresponding third elliptical hole 27 on the first vertical plate 21 completely correspond to the inserting rod 33 which sequentially penetrates through the corresponding first elliptical hole 25 and then passes through the mounting plate 31 on the rear side, The second elliptical hole 26 and the third elliptical hole 27 push the cross shaft 11, at this time, the corresponding third bevel gear 17 positioned on the left side is engaged with the corresponding first bevel gear 15, at this time, the first cross shaft 11 is reversed, the corresponding external threaded pipe 18 is reversed to drive the first vertical plate 21 to move leftwards, the corresponding first elliptical hole 25 and the second elliptical hole 26 move along with the first elliptical hole and are staggered with the corresponding third elliptical hole 27 to clamp the corresponding inserting rod 33, the mounting plate 31 can be quickly mounted on the present invention through the operation, the mounting plate 31 can be dismounted by moving the first vertical plate 21 rightwards, the mounting plate 31 is very convenient and quick to mount and dismount, a plurality of first vertical plates 21 form a display wall, students can quickly mount different lightning protection components 32 on the corresponding first vertical plates 21 according to own design, and then carry out standard electrical connection on the lightning protection components 32, constitute lightning protection system, lightning protection system can also carry out better show through the show wall, and the show is watched for mr and other classmates, and lower a set of student can be quick will go up a set of lightning protection system and dismantle and design own lightning protection system, is favorable to improving the efficiency in real classroom, avoids extravagant on the installation and the dismantlement of lightning protection subassembly 32 with unnecessary time.
Specifically, as shown in the figure, the lightning protection component 32 according to this embodiment includes a lightning protection box, a lightning protection PDU, a network socket, a threading pipe, a network lightning protection surge protection box, an equipotential connection terminal box, and a network distribution frame. Lightning protection components such as lightning protection box, lightning protection PDU, network socket, threading pipe, network lightning protection surge protection box, equipotential connection terminal case, network distribution frame can satisfy student's own equipment multistage lightning protection system, outdoor lightning protection system, network lightning protection system etc. guarantee the needs of the real standard of student.
Specifically, as shown in the drawings, the outer end of the transverse shaft 11 according to the present embodiment is sleeved with a collar 50 through a bearing. The user can grasp the lantern ring 50 to pull the transverse shaft 11 to perform the transverse moving operation more conveniently, and the user can grasp the lantern ring 50 all the time when the transverse shaft 11 rotates, so that the user can move the transverse shaft 11 in time conveniently.
Further, as shown in the drawings, the outer surface of the collar 50 according to the present embodiment is provided with anti-slip threads. The friction between the hand of the user and the lantern ring 50 can be increased through the design, and the operation of the user is convenient.
Furthermore, as shown in the figure, the upper and lower sides of the inner end of the first through hole 5 and the upper and lower sides of the inner end of the second through hole 10 are both provided with an elastic telescopic rod 34, the end of a fixed rod of the elastic telescopic rod 34 is fixedly connected with the inner wall of the first side plate 2, the end of a movable rod of the elastic telescopic rod 34 is provided with a universal ball 35, and the universal ball 35 is in contact fit with the corresponding side of the third bevel gear 17. Through the design, when no external force is applied, the two third bevel gears 17 are not meshed with the first bevel gear 15 on the front side, and after a user loosens the transverse shaft 11, the plurality of elastic telescopic rods 34 can drive the transverse shaft 11 to reset by pushing the corresponding third bevel gears 17, so that the operation and the use of the user are facilitated.
Furthermore, as shown in the drawings, a foot switch 36 is fixedly installed on the top of the base 1, and the foot switch is connected to the motor 28. It is more convenient for the user to control the rotation of the motor 28 by means of the foot switch 36.
Furthermore, as shown in the drawings, the right end of the first vertical plate 21 and the second side plate 6 are fixedly connected by a transverse telescopic rod 37. The telescopic rod 37 can ensure the installation stability of the first vertical plate 21, improve the firmness degree of the invention and prolong the service life.
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 (7)
1. The utility model provides a network engineering electric lightning protection show and real device of instructing which characterized in that: comprises a base (1), a plurality of vertical mounting plates (31) and a plurality of lightning protection components (32), wherein the base (1) is hollow inside, a first side plate (2) is fixedly mounted at the position, close to the left end, of the top of the base (1), a second side plate (6) is fixedly mounted at the position, close to the right end, of the top of the base (1), the first side plate (2) is parallel to the second side plate (6), the first side plate (2) is hollow inside, the upper ends of the first side plate (2) and the second side plate (6) are fixedly connected through a transverse plate (3), a lightning rod (4) is arranged at the top of the transverse plate (3), a plurality of first through holes (5) which are uniformly distributed up and down are formed in the middle of the right side surface of the first side plate (2), second through holes (10) are formed in the positions, corresponding to the first through holes (5), third through holes (7) are formed in the lower end surface of the first side plate (2), fourth, a vertical shaft (9) is arranged in the fourth through hole (8) through a bearing, the upper end of the vertical shaft (9) is movably connected with a top bearing in the first side plate (2), a first through hole (5) and a second through hole (10) which are the same in height penetrate through a cross shaft (11), the cross shaft (11) is in contact fit with the inner side surfaces of the corresponding first through hole (5) and the corresponding second through hole (10), the cross shaft (11) can move in the left-right direction, two ends of the cross shaft (11) are both positioned outside the first side plate (2), a transverse transmission shaft (12) is arranged between the cross shaft (11) and the vertical shaft (9), a sleeve (13) is sleeved on the transmission shaft (12) through a bearing, the sleeve (13) is fixedly connected with the inner wall of the first side plate (2) through a support (14), first bevel gears (15) are symmetrically and fixedly arranged at the front end and the rear end of the transmission shaft (12), and a second bevel gear (16) is fixedly arranged on the vertical shaft, a first bevel gear (15) at the rear side is meshed and matched with a corresponding second bevel gear (16), two third bevel gears (17) are fixedly installed on a transverse shaft (11), the installation directions of the two third bevel gears (17) on the same transverse shaft (11) are opposite, the third bevel gears (17) can be meshed and matched with the corresponding first bevel gears (15), an external threaded pipe (18) is sleeved at the right end of the transverse shaft (11), the left end of the external threaded pipe (18) is movably connected with the right end bearing of a corresponding first through hole (5), a long guide groove (19) is formed in the inner wall of the external threaded pipe (18), a guide block (20) is fixedly installed at the side part of the right end of the transverse shaft (11), the guide block (20) is inserted into the corresponding guide groove (19), a first vertical plate (21) is arranged between a first side plate (2) and a second side plate (6) corresponding to the height of the transverse shaft (11), and a threaded blind hole (22) is formed in the middle of the left end face of the first, the right end of the external threaded pipe (18) is in threaded fit with the corresponding threaded blind hole (22), a vertical slot (23) is formed in the right end of the first vertical plate (21), a second vertical plate (24) is arranged in the slot (23), the right end of the second vertical plate (24) is fixedly connected with the side of the second side plate (6), a plurality of uniformly distributed first elliptical holes (25) are formed in the front side of the first vertical plate (21), second elliptical holes (26) are formed in the positions, corresponding to the first elliptical holes (25), of the rear side of the first vertical plate (21), third elliptical holes (27) are formed in the positions, corresponding to the first elliptical holes (25), of the second vertical plate (24), the corresponding first elliptical holes (25), the corresponding second elliptical holes (26) and the corresponding third elliptical holes (27) are communicated, the elliptical long axes of the first elliptical holes (25), the second elliptical holes (26) and the third elliptical holes (27) are transverse, a vertical motor (28) is fixedly installed at the bottom in the base (1), fixed mounting driving gear (29) on the output shaft of motor (28), lower extreme fixed mounting driven gear (30) of vertical axis (9), driving gear (29) and driven gear (30) meshing cooperation, two inserted bars (33) of rear side fixed mounting of mounting panel (31), corresponding first elliptical aperture (25), second elliptical aperture (26), third elliptical aperture (27) can be passed in proper order in inserted bar (33), lightning protection subassembly (32) respectively fixed mounting is in the front side of mounting panel (31) that corresponds.
2. The electrical lightning protection display and practical training device for network engineering according to claim 1, characterized in that: the lightning protection assembly (32) comprises a lightning protection box, a lightning protection PDU, a network socket, a threading pipe, a network lightning protection surge protection box, an equipotential connection terminal box and a network distribution frame.
3. The electrical lightning protection display and practical training device for network engineering according to claim 1, characterized in that: the outer end of the transverse shaft (11) is sleeved with a lantern ring (50) through a bearing.
4. The electrical lightning protection display and practical training device for network engineering according to claim 3, characterized in that: the outer surface of the lantern ring (50) is provided with anti-skid grains.
5. The electrical lightning protection display and practical training device for network engineering according to claim 1, characterized in that: the upper and lower both sides of first through-hole (5) inner and upper and lower both sides of second through-hole (10) inner all be equipped with elasticity telescopic link (34), the dead lever tip and first curb plate (2) inner wall fixed connection of elasticity telescopic link (34), universal bulb (35) are all installed to the tip of the movable rod of elasticity telescopic link (34), universal bulb (35) and the contact cooperation of the third bevel gear (17) lateral part that corresponds.
6. The electrical lightning protection display and practical training device for network engineering according to claim 1, characterized in that: the top of the base (1) is fixedly provided with a foot switch (36) which is connected with the motor (28).
7. The electrical lightning protection display and practical training device for network engineering according to claim 1, characterized in that: the right end of the first vertical plate (21) is fixedly connected with the second side plate (6) through a transverse telescopic rod (37).
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| CN201810972531.5A CN108922303B (en) | 2018-08-24 | 2018-08-24 | Electrical lightning protection display and practical training device for network engineering |
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| CN201810972531.5A CN108922303B (en) | 2018-08-24 | 2018-08-24 | Electrical lightning protection display and practical training device for network engineering |
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| CN108922303B true CN108922303B (en) | 2020-07-10 |
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| CN111859569A (en) * | 2020-07-20 | 2020-10-30 | 兰州理工大学 | Non-circular gear dynamic contact characteristic analysis method based on tooth surface topological structure |
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