CN214541765U - EMUs lightning arrester convenient to installation is maintained - Google Patents
EMUs lightning arrester convenient to installation is maintained Download PDFInfo
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- CN214541765U CN214541765U CN202120628850.1U CN202120628850U CN214541765U CN 214541765 U CN214541765 U CN 214541765U CN 202120628850 U CN202120628850 U CN 202120628850U CN 214541765 U CN214541765 U CN 214541765U
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Abstract
A motor train unit lightning arrester convenient to install and maintain relates to the technical field of motor train units. The lightning arrester comprises a mounting seat and a lightning arrester body, wherein the mounting seat is made of insulating materials, a plurality of inserting columns are arranged on the mounting seat along the circumferential direction, first springs are sleeved on the inserting columns, the upper ends of the first springs are connected with top plates which are sleeved on the inserting columns in a sliding mode, the lower ends of the first springs are connected to the mounting seat, and limiting mechanisms are arranged on the upper portions of the inserting columns; the lightning arrester body comprises an insulating shell, the bottom of the insulating shell is connected with a base, a plurality of limiting holes corresponding to the positions of the inserting columns on the mounting seat are formed in the periphery of the base, the limiting holes in the base of the lightning arrester body penetrate through the corresponding inserting columns respectively, and the limiting blocks are pushed to be limited above the base through second springs, so that the lightning arrester body is fixedly installed. The utility model discloses just can accomplish the quick assembly disassembly of lightning arrester body fast under the prerequisite that need not the instrument, it is convenient simple, great promotion the work efficiency that the maintenance was changed.
Description
Technical Field
The utility model relates to a EMUs technical field specifically is a EMUs lightning arrester convenient to installation is maintained.
Background
The motor train unit, also called as a motor train unit train, is a type of modern train and consists of a plurality of powered vehicles and unpowered vehicles, and the train operates in a fixed marshalling mode within a normal service life. Lightning is a natural product, when lightning strike occurs, lightning strike discharge induces lightning strike electromagnetic pulse overvoltage and overcurrent, and communication signal equipment and network communication equipment in a station are damaged in a conduction and induction mode through a station power supply system, a communication signal transmission channel, a grounding system and a building direct lightning strike protection system, so that huge loss is caused, and normal safe transportation production of a railway is directly threatened. The existing train develops towards high speed and intellectualization, and electronic equipment on a thunder and lightning train is influenced in the running process of the train, so that the running safety is threatened. Therefore, how to avoid lightning strike is very important.
The existing motor train unit lightning arresters are all zinc oxide rods, the lightning arresters are in a high-resistance state under the normal system working voltage, only microampere-level current passes through the lightning arrester, the influence of thunder and lightning on a train in the running process can be avoided, the existing lightning arrester is collided by external foreign matters once in the high-speed running process of the train, the train is damaged easily at the speed of three hundred kilometers per hour, however, when a new device is replaced after the train is damaged, the device is generally fixed through bolts, time and labor are wasted in installation, and the maintenance efficiency is delayed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a EMUs lightning arrester convenient to installation is maintained possesses the effect of protection, conveniently installs, has improved maintenance efficiency.
The technical scheme for realizing the purpose is as follows: the utility model provides a EMUs lightning arrester convenient to installation is maintained which characterized in that: the lightning arrester comprises a mounting seat and a lightning arrester body, wherein the mounting seat is made of insulating materials, a plurality of inserting columns which are circumferentially arranged are mounted on the mounting seat, first springs are sleeved on the inserting columns, the upper ends of the first springs are connected with top plates which are slidably sleeved on the inserting columns, the lower ends of the first springs are connected onto the mounting seat, limiting mechanisms are arranged on the upper portions of the inserting columns, each limiting mechanism comprises a limiting groove which is formed in the outer wall of the corresponding inserting column, a limiting block is arranged in each limiting groove, the cross section of each limiting block is in a right-angled triangle shape, the inclined surface of each limiting block faces outwards, a second spring is arranged between each limiting block and each limiting groove, and each second spring is used for pushing each limiting block to extend out of each limiting groove;
the lightning arrester body comprises an insulating shell, the bottom of the insulating shell is connected with a base, a plurality of limiting holes corresponding to the positions of the inserting columns on the mounting seat are formed in the periphery of the base, the limiting holes in the base of the lightning arrester body penetrate through the corresponding inserting columns respectively, and the limiting blocks are pushed by second springs to be limited above the base, so that the lightning arrester body is fixedly mounted;
the zinc oxide rod body is arranged in the insulating shell in a coaxial mode, the upper end of the zinc oxide rod body is connected with a wiring terminal which extends upwards out of the insulating shell, and the lower end of the zinc oxide rod body is connected with a lower wiring terminal which penetrates through the base and the mounting seat downwards.
Further, an insulating net layer is arranged in the side wall of the insulating shell.
Furthermore, an insulating reinforcing rod is fixedly connected between the zinc oxide rod body and the insulating shell.
Furthermore, two acute angle ends of the limiting block are both arc-shaped.
Furthermore, a protective cover is further sleeved outside the lightning protection device body.
Further, the side wall of the protective cover is wave-shaped.
Further, the lower end of the protective cover is fixedly installed on the installation seat through bolts, the protective cover is an aluminum oxide support body, and anticorrosive paint is sprayed on the surface of the protective cover.
Furthermore, the surface of the protective cover is provided with meshes which are set to be 80-110 meshes.
The utility model has the advantages that:
1) when the lightning arrester is installed, the lightning arrester body is vertically downward, the plurality of limiting holes in the base are driven to penetrate downwards on the corresponding inserting columns and compress limiting blocks of the limiting mechanisms downwards to retract into the limiting grooves, and after the limiting holes in the base penetrate through the corresponding limiting blocks, the second springs push the limiting blocks to be clamped outwards above the base; when the device is disassembled, only the limiting block needs to be pressed, and the base and the device body can be quickly popped out from the inserting column, so that the device is convenient to disassemble. Just can accomplish the quick assembly disassembly of lightning arrester body under the prerequisite that need not the instrument fast, it is convenient simple, great promotion the work efficiency of maintenance change.
2) Insulating network layer and the inside insulating stiffener of device body are set up in the inside of device body, great promotion the structural strength of the inside skeleton of device body, make the more shock-resistant of device body, the protection to the device body has also further been strengthened in the setting of protection casing moreover, has reduced the device body and has received the impact of outside foreign matter and the possibility of damaging.
3) The lateral wall of protection casing is established to streamlined to the protection casing surface is equipped with the mesh, is favorable to the train to reduce the windage of protection casing in high-speed traveling, makes the protection casing installation after more stable.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a front view of the lightning arrester body.
Detailed Description
As shown in fig. 1, 2, 3, the utility model discloses a mount pad 1, lightning arrester body 2, mount pad 1 is insulating material, install a plurality of perpendicular ascending post 3 of inserting of arranging along circumference on the mount pad 1, it is equipped with first spring 4 to insert the last cover of post 3, the upper end of first spring 4 is connected with the roof 5 of slip suit on inserting post 3, the lower extreme of first spring 4 is connected on mount pad 1, the upper portion of inserting post 3 is provided with stop gear 6, stop gear 6 is including setting up the spacing groove 61 on inserting post 3 outer wall, be provided with stopper 62 in the spacing groove 61, stopper 62's cross-section is right angled triangle, and the inclined plane is outwards, two acute angle ends of stopper 62 all establish to the camber, second spring 63 between stopper 62 and the spacing groove 61, second spring 63 is used for promoting stopper 62 and outwards stretches out spacing groove 61.
The lightning arrester body 2 comprises an insulating housing 21, the bottom of the insulating housing 21 is connected with a base 22, the periphery of the base 22 is provided with a plurality of limiting holes 23 corresponding to the positions of the inserting columns 3 on the mounting seat 1, the limiting holes 23 on the base 22 of the lightning arrester body 2 penetrate through the corresponding inserting columns 3 respectively and push the limiting blocks 23 to be limited above the limiting holes 23 through the second springs 63, and therefore the lightning arrester body 2 is fixedly installed.
A zinc oxide rod body 24 which is coaxially arranged is arranged in the insulating shell 21, the upper end of the zinc oxide rod body 24 is connected with an upper wiring terminal 25 which upwards extends out of the insulating shell 21, the lower end of the zinc oxide rod body 24 is connected with a lower wiring terminal 26 which downwards penetrates through the base 22 and the mounting seat 1, an insulating net layer 27 is arranged in the insulating shell 21, and an insulating reinforcing rod 28 is fixedly connected between the zinc oxide rod body 24 and the insulating shell 21.
The protection cover 7 is further sleeved outside the lightning arrester body 2, the side wall of the protection cover 7 is in a wave shape, meshes are formed in the surface of the protection cover 7, and the meshes of the protection cover 7 are 80-110 meshes, so that the wind resistance of the protection cover 7 is reduced when a train runs at a high speed, and the protection cover 7 is more stable after being installed.
Specifically, the protection casing 7 passes through bolt fixed mounting in the upper end of mount pad 1, the protection casing 7 is the aluminium oxide supporter, and the surface spraying of protection casing 7 has anticorrosive paint, is favorable to improving the life of protection casing 7.
The utility model discloses dismouting principle of lightning arrester body 2:
when the lightning arrester body 2 is installed, the lightning arrester body 2 is vertically downward, the plurality of limiting holes 23 on the base 22 are driven to penetrate downwards to be arranged on the corresponding inserting columns 5 and the limiting blocks 62 of the downward compression limiting mechanisms 6 retract back to the limiting grooves 61, and after the limiting holes 23 on the base 22 penetrate through the corresponding limiting blocks 62, the second springs 63 push the limiting blocks 62 to be clamped outwards above the base 22.
When the device is disassembled, only the limiting block 63 needs to be pressed, and the base 2 and the device body 10 can be quickly popped out from the inserting column 5, so that the device is convenient to disassemble.
Claims (8)
1. The utility model provides a EMUs lightning arrester convenient to installation is maintained which characterized in that: the lightning arrester comprises a mounting seat and a lightning arrester body, wherein the mounting seat is made of insulating materials, a plurality of inserting columns which are circumferentially arranged are mounted on the mounting seat, first springs are sleeved on the inserting columns, the upper ends of the first springs are connected with top plates which are slidably sleeved on the inserting columns, the lower ends of the first springs are connected onto the mounting seat, limiting mechanisms are arranged on the upper portions of the inserting columns, each limiting mechanism comprises a limiting groove which is formed in the outer wall of the corresponding inserting column, a limiting block is arranged in each limiting groove, the cross section of each limiting block is in a right-angled triangle shape, the inclined surface of each limiting block faces outwards, a second spring is arranged between each limiting block and each limiting groove, and each second spring is used for pushing each limiting block to extend out of each limiting groove;
the lightning arrester body comprises an insulating shell, the bottom of the insulating shell is connected with a base, a plurality of limiting holes corresponding to the positions of the inserting columns on the mounting seat are formed in the periphery of the base, the limiting holes in the base of the lightning arrester body penetrate through the corresponding inserting columns respectively, and the limiting blocks are pushed by second springs to be limited above the base, so that the lightning arrester body is fixedly mounted;
the zinc oxide rod body is arranged in the insulating shell in a coaxial mode, the upper end of the zinc oxide rod body is connected with a wiring terminal which extends upwards out of the insulating shell, and the lower end of the zinc oxide rod body is connected with a lower wiring terminal which penetrates through the base and the mounting seat downwards.
2. The lightning protection device for motor train unit convenient to install and maintain as claimed in claim 1, wherein: an insulating net layer is arranged in the side wall of the insulating shell.
3. The lightning protection device for motor train unit convenient to install and maintain as claimed in claim 1, wherein: and an insulating reinforcing rod is fixedly connected between the zinc oxide rod body and the insulating shell.
4. The lightning protection device for motor train unit convenient to install and maintain as claimed in claim 1, wherein: two acute angle ends of the limiting block are both arc-shaped.
5. The lightning protection device for motor train unit convenient to install and maintain as claimed in claim 1, wherein: the lightning arrester body is also provided with a protective cover in a sleeving manner.
6. The lightning protection device for motor train unit convenient to install and maintain as claimed in claim 5, wherein: the side wall of the protective cover is wave-shaped.
7. The lightning protection device for motor train unit convenient to install and maintain as claimed in claim 6, wherein: the lower end of the protective cover is fixedly installed on the installation seat through bolts, the protective cover is an alumina support body, and anticorrosive paint is sprayed on the surface of the protective cover.
8. The lightning protection device for motor train unit convenient to install and maintain as claimed in claim 7, wherein: the surface of the protective cover is provided with meshes which are 80-110 meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120628850.1U CN214541765U (en) | 2021-03-29 | 2021-03-29 | EMUs lightning arrester convenient to installation is maintained |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120628850.1U CN214541765U (en) | 2021-03-29 | 2021-03-29 | EMUs lightning arrester convenient to installation is maintained |
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| Publication Number | Publication Date |
|---|---|
| CN214541765U true CN214541765U (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120628850.1U Active CN214541765U (en) | 2021-03-29 | 2021-03-29 | EMUs lightning arrester convenient to installation is maintained |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242359A (en) * | 2021-12-17 | 2022-03-25 | 宁波市镇海国创高压电器有限公司 | Lightning arrester with pressure relief device |
-
2021
- 2021-03-29 CN CN202120628850.1U patent/CN214541765U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242359A (en) * | 2021-12-17 | 2022-03-25 | 宁波市镇海国创高压电器有限公司 | Lightning arrester with pressure relief device |
| CN114242359B (en) * | 2021-12-17 | 2023-11-17 | 宁波市镇海国创高压电器有限公司 | Lightning arrester with pressure relief device |
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