CN220421404U - Novel arrester mounting structure - Google Patents
Novel arrester mounting structure Download PDFInfo
- Publication number
- CN220421404U CN220421404U CN202321440211.8U CN202321440211U CN220421404U CN 220421404 U CN220421404 U CN 220421404U CN 202321440211 U CN202321440211 U CN 202321440211U CN 220421404 U CN220421404 U CN 220421404U
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- Prior art keywords
- mounting bracket
- arrester
- mounting
- bracket
- pillar
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- 238000009434 installation Methods 0.000 claims abstract description 25
- 239000012212 insulator Substances 0.000 claims abstract description 25
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 210000001503 joint Anatomy 0.000 claims 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 4
- 150000004706 metal oxides Chemical class 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 230000003137 locomotive effect Effects 0.000 description 4
- 208000025274 Lightning injury Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 244000098674 Pinus cembroides Species 0.000 description 1
- 235000005013 Pinus cembroides Nutrition 0.000 description 1
- 235000008591 Pinus cembroides var edulis Nutrition 0.000 description 1
- 235000015593 Pinus monophylla Nutrition 0.000 description 1
- 235000015594 Pinus parryana Nutrition 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Insulators (AREA)
Abstract
The utility model discloses a novel lightning arrester installation structure, which belongs to the field of lightning protection of urban rail transit contact networks, and has the advantages of high strength, looseness prevention, convenience in installation and safety and reliability in installation, so that the lightning arrester or an installation bracket is prevented from falling down due to frequent vibration or shaking to cause operation accidents. It mainly includes pillar, mounting bracket I and mounting bracket II, and fastener and support screw are passed through to mounting bracket I and the one end of mounting bracket II are connected, mounting bracket I and the other end of mounting bracket II all are equipped with rectangular hole, are equipped with fastening screw I through the fastener on mounting bracket I and the mounting bracket II that are located pillar one side, are equipped with fastening screw II through the fastener in being located the rectangular downthehole of pillar opposite side mounting bracket I and mounting bracket II, are equipped with arrester body and pillar porcelain insulator on the mounting bracket I respectively, are equipped with the remover on the arrester body. The utility model is mainly used for the direct-current gapless metal oxide arrester installation structure for the urban rail contact network.
Description
Technical Field
The utility model relates to the field of lightning protection of urban rail transit contact networks, in particular to a novel lightning arrester installation structure.
Background
Urban rail transit plays an important role in relieving traffic pressure in modern cities. In recent years, urban rail transit is rapidly developed, lines are increasingly dense, the proportion of the transportation capacity in an urban transportation network is increasingly increased, and the urban rail transit becomes an indispensable link for bringing convenience to the travel of people.
Urban rail transit generally refers to traffic modes such as subways, trams and the like, wherein the popularity of subways is highest. Most of the subway lines are laid underground, and the influence of lightning stroke is small. However, the subway lines of the parking lot and part of suburban road sections are generally positioned on viaducts, and the surrounding areas are rarely shielded by tall trees or buildings, so that the subway lines are more prone to lightning stroke. Because the equipment insulation level of the urban rail transit contact net is lower, the urban rail transit contact net is difficult to resist lightning overvoltage, equipment such as an isolating switch is easy to damage or trip due to induced lightning or direct lightning strike, and even driving is influenced. At present, urban rail contact networks commonly use direct-current gapless metal oxide arresters for overvoltage protection.
The direct-current gapless metal oxide lightning arrester for the urban rail contact net is fixed on a contact net support through a mounting bracket. The high-voltage end of the lightning arrester is connected to the contact net through a high-voltage wire, and the low-voltage end is connected to the grounding electrode through a grounding wire. The lightning arrester grounding wire is generally a 150 square cross-linked polyethylene insulating steel core aluminum wire, and the wire is connected to the grounding end of the lightning arrester after being transited through a transition insulator fixed on the mounting bracket.
The conventional arrester mounting structure has the following two problems:
the arrester installing support bears the gravity of 150 square wires with the length of about 6 meters, the stress is larger, and the mechanical strength of the conventional arrester installing support is insufficient, so that the condition that the support shakes frequently occurs in the installation process and when a subway locomotive passes near a support in the operation process. The long-term shaking can cause gradual loss of the nut tightening torque until the nut is loosened. Once the nuts are loosened, the mounting bracket and the lightning arrester drop from the support, on one hand, the grounding short circuit of the contact net is caused to generate power failure, and the safe operation of the subway is influenced; on the other hand, if the falling mounting bracket or the lightning arrester breaks the locomotive in operation, the locomotive is greatly damaged, and the personal safety of the locomotive and drivers and passengers is affected. The connection structure is unreasonable between the lightning arrester and the mounting bracket, and the condition that the lightning arrester shakes frequently appears in the operation. The rocking can lead to the fastening nut of arrester to loosen, has the risk that causes the arrester to drop from the installing support.
At present, an installation support of a direct-current gapless metal oxide lightning arrester for an urban rail contact network is generally made of angle iron, the strength is low, and the connection structure of the lightning arrester and the installation support is unreasonable.
Disclosure of Invention
The utility model aims to provide a novel lightning arrester installation structure which is high in strength, loose-proof, convenient to install and safe and reliable in installation structure, so that the lightning arrester or an installation bracket is prevented from falling down to cause operation accidents due to frequent vibration or shaking.
The utility model is realized by the following technical scheme:
the utility model provides a novel arrester mounting structure, includes pillar, mounting bracket I and mounting bracket II, and mounting bracket I and mounting bracket II's one end is passed through the fastener and is connected with the support lead screw, mounting bracket I and mounting bracket II's the other end all are equipped with rectangular hole, are equipped with fastening lead screw I through the fastener on mounting bracket I and the mounting bracket II that are located pillar one side, are equipped with fastening lead screw II through the fastener in the rectangular downthehole of pillar opposite side mounting bracket I and mounting bracket II, and fastening lead screw I and fastening lead screw II clamp the pillar, are equipped with arrester body and pillar porcelain insulator on the mounting bracket I respectively, are equipped with the disengager on the arrester body, and disengager and pillar porcelain insulator pass through wire connection, and pillar porcelain insulator passes through ground wire ground connection.
Further, mounting bracket I be the channel-section steel support, mounting bracket II is the angle steel support.
Further, the channel steel bracket is provided with an arrester mounting hole, the fastening nail of the arrester body penetrates through the arrester mounting hole, the fastening nail is fastened above the wing plate of the channel steel bracket through a nut and a large flat pad, and the fastening nail is fastened below the wing plate of the channel steel bracket through an oblique gasket, an elastic pad and the nut in sequence; the inclined plane inclination angle of the inclined square gasket is consistent with the inclination angle of the wing plate plane of the channel steel bracket.
Further, angle steel support on be equipped with a plurality of pillar porcelain insulator mounting holes, pillar porcelain insulator passes through pillar porcelain insulator mounting hole and installs on mounting bracket I.
Further, the fastener includes a nut and a support washer.
Compared with the prior art, the utility model has the beneficial effects that:
1. the strip holes for adjusting the installation size are formed, the strip holes can be used for I-shaped contact net struts with any size between 200mm and 350mm in side length, firm installation can be ensured when the strip holes are installed on contact net struts with different sizes, and the strip holes are good in universality.
2. The fastening screw rod I and the fastening screw rod II utilize leverage, have higher structural strength, can make mounting bracket I, mounting bracket II and arrester not produce under the frequent vibratory environment of urban rail contact net and rock, avoid the nut to lose or loosen because of frequently rocking the tightening torque that produces, avoid falling the arrester or installing support that cause because of the nut pine takes off and cause the operation accident.
3. Simple structure, simple to operate, low cost.
Drawings
FIG. 1 is a schematic diagram I of the structure of the present utility model;
FIG. 2 is a schematic diagram II of the structure of the present utility model;
fig. 3 is a schematic view of the installation of the arrester body of the present utility model;
fig. 4 is a schematic structural view of the channel bracket of the present utility model;
fig. 5 is a schematic structural view of the angle bracket of the present utility model.
In the figure: 1. a support post; 2. a lightning arrester body; 3. a mounting rack I; 4. a mounting rack II; 5. supporting a screw rod; 6. fastening a screw rod I; 7. fastening a screw rod II; 8. a disengager; 9. post porcelain insulators; 10. a ground wire; 11. a pillar porcelain insulator mounting hole; 12. a large flat pad; 13. an oblique square gasket; 14. a spring pad; 15. a nut; 16. a slit hole; 17. and a lightning arrester mounting hole.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-2 and fig. 4-5, embodiment 1 and a novel arrester mounting structure comprise a support column 1, a mounting rack i 3 and a mounting rack ii 4, one ends of the mounting rack i 3 and the mounting rack ii 4 are connected with a support screw 5 through fasteners, strip holes 16 are formed in the other ends of the mounting rack i 3 and the mounting rack ii 4, an I-shaped contact net support column 1 with any size between 200mm and 350mm of side length can be used, firm mounting can be guaranteed when the arrester support column 1 with different sizes is mounted, universality is good, a fastening screw i 6 is arranged on the mounting rack i 3 and the mounting rack ii 4 on one side of the support column 1 through fasteners, a fastening screw ii 7 is arranged in the strip holes 16 of the mounting rack i 3 and the mounting rack ii 4 on the other side of the support column 1 through fasteners, the fastening screw i 6 and the fastening screw ii 7 are used for clamping the support column 1, an arrester body 2 and a support column porcelain insulator 9 are respectively arranged on the mounting rack i 3, a disconnector 8 is arranged on the arrester body 2, the disconnector 8 and the support porcelain insulator 9 are connected through high-voltage leads, and the support column porcelain insulator 9 is grounded through a ground wire 10.
As shown in fig. 3-4, in embodiment 2, a novel lightning arrester installation structure, the installation frame i 3 is a channel steel bracket, and the installation frame ii 4 is an angle steel bracket; the lightning arrester installation hole 17 is formed in the channel steel support, the fastening nail of the lightning arrester body 2 penetrates through the lightning arrester installation hole 17, the fastening nail is fastened above the wing plate of the channel steel support through the nut 15 and the large flat pad 12, and the fastening nail is fastened below the wing plate of the channel steel support through the oblique square washer 13, the elastic pad 14 and the nut 15 in sequence; the inclined plane inclination angle of the inclined square gasket 13 is consistent with the inclination angle of the wing plate plane of the channel steel bracket; the angle steel bracket is provided with a plurality of post porcelain insulator mounting holes 11, and post porcelain insulators 9 are mounted at different positions of the mounting frame I3 through the post porcelain insulator mounting holes 11, so that proper insulation distances among the lightning arrester body 2, the post porcelain insulators 9 and the contact net posts 1 are ensured; the fastener comprises a nut 15 and a supporting washer, the lightning arrester body 2 is arranged at a position of the channel steel bracket far away from the contact net support column 1, and the other parts are the same as the embodiment 1.
And the installation frame I3 and the installation frame II 4 are GQD type full-size multipurpose high-strength channel steel brackets and angle steel brackets.
The application method of the utility model comprises the following steps:
s1, fixing a channel steel bracket and an angle steel bracket at a proper position of a contact net support 1 by using two fastening screw rods.
S2, enabling the supporting screw rod 5 to penetrate through holes of the channel steel support and the angle steel support, which are far away from the contact net support 1, placing the supporting washer and the nut 15, screwing the nut 15, and ensuring the channel steel support and the angle steel support to be horizontal.
S3, screwing a nut 15 at the bottom end of the lightning arrester body 2, amplifying the flat pad 12, and enabling a screw at the bottom end of the lightning arrester to pass through a lightning arrester mounting hole 17 on the channel steel bracket; then, sleeving an oblique square gasket 13 on the tight nail, adjusting the angle of the oblique square gasket 13, and ensuring the lower plane of the oblique square gasket 13 to be horizontal; the spring washer 14 and the double nuts are put on and the nuts are tightened.
S4, enabling the stud of the post porcelain insulator 9 to pass through the post porcelain insulator mounting hole 11, placing a flat spring pad and a nut, and screwing the nut; and connecting the high-voltage lead and the ground wire.
Claims (5)
1. Novel arrester mounting structure, including pillar (1), mounting bracket I (3) and mounting bracket II (4), the one end of mounting bracket I (3) and mounting bracket II (4) is connected its characterized in that with support lead screw (5) through the fastener: the utility model discloses a lightning arrester, including mounting bracket I (3), mounting bracket II (4), be equipped with rectangular hole (16) with mounting bracket II (4) the other end of mounting bracket I (3), be located mounting bracket I (3) and mounting bracket II (4) on one side of pillar (1) on be equipped with fastening lead screw I (6) through the fastener, be equipped with on mounting bracket I (3) lightning arrester body (2) and pillar porcelain insulator (9) respectively, be equipped with on lightning arrester body (2) and break away from ware (8), break away from ware (8) and pillar porcelain insulator (9) through leg joint, pillar porcelain insulator (9) are through ground wire (10) ground connection.
2. The novel arrester mounting structure of claim 1, wherein: the installation frame I (3) is a channel steel bracket, and the installation frame II (4) is an angle steel bracket.
3. The novel arrester mounting structure of claim 2, wherein: the lightning arrester installation hole (17) is formed in the channel steel support, the fastening nail of the lightning arrester body (2) penetrates through the lightning arrester installation hole (17), the fastening nail is fastened above the wing plate of the channel steel support through the nut (15) and the large flat pad (12), and the fastening nail is fastened below the wing plate of the channel steel support through the oblique square washer (13), the elastic pad (14) and the nut (15); the inclined plane inclination angle of the inclined square gasket (13) is consistent with the inclination angle of the wing plate plane of the channel steel bracket.
4. The novel arrester mounting structure of claim 2, wherein: the angle steel support on be equipped with a plurality of pillar porcelain insulator mounting holes (11), pillar porcelain insulator (9) are installed on mounting bracket I (3) through pillar porcelain insulator mounting hole (11).
5. The novel arrester mounting structure of claim 1, wherein: the fastener comprises a nut (15) and a support washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321440211.8U CN220421404U (en) | 2023-06-07 | 2023-06-07 | Novel arrester mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321440211.8U CN220421404U (en) | 2023-06-07 | 2023-06-07 | Novel arrester mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220421404U true CN220421404U (en) | 2024-01-30 |
Family
ID=89644105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321440211.8U Active CN220421404U (en) | 2023-06-07 | 2023-06-07 | Novel arrester mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220421404U (en) |
-
2023
- 2023-06-07 CN CN202321440211.8U patent/CN220421404U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |