CN211828322U

CN211828322U - Composite jacket zinc oxide lightning arrester

Info

Publication number: CN211828322U
Application number: CN202020847091.3U
Authority: CN
Inventors: 戴建东
Original assignee: Hanfang Electrical Co ltd
Current assignee: Hanfang Electrical Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-10-30
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a composite jacket zinc oxide arrester, which comprises an upper end, a lower chassis and a glass fiber reinforced plastic rod, wherein the lower chassis is provided with an isolation layer, the glass fiber reinforced plastic rod is fixed in the middle of the isolation layer, a zinc oxide valve block is arranged on the isolation layer, a glass fiber reinforced plastic cylinder is arranged around the zinc oxide valve block, and a sealing gasket is arranged at the upper end of the zinc oxide valve block; the upper end of the glass fiber reinforced plastic cylinder is movably connected with an upper end head, a ceramic layer is arranged on the periphery of the glass fiber reinforced plastic cylinder, and a composite outer sleeve is fixed outside the ceramic layer; bolts are processed on the upper end head and the lower chassis, and nuts are configured; the utility model discloses a compound overcoat zinc oxide arrester, after receiving the thunderbolt, the electric current comes the zinc oxide valve block through the upper end, and the zinc oxide valve block changes self resistance and puts the pressure, and the lightning-arrest effect is accomplished to the leading-in ground of electric current to the rethread other end ground connection. The glass fiber reinforced plastic cylinder, the sealing gasket, the ceramic layer, the composite outer sleeve and the isolating layer can be effectively sealed, and the effects of moisture prevention and corrosion prevention are achieved.

Description

Composite jacket zinc oxide lightning arrester

Technical Field

The utility model relates to a lightning arrester technical field specifically is a compound overcoat zinc oxide lightning arrester.

Background

Thunder and rain or some extreme regions can have a thunder phenomenon, the thunder is set to hit the ground or other places, live objects such as electric wires are easy to hit by the thunder, in order to prevent the lines from being damaged, certain lightning protection measures are needed, and the lightning arrester is inoculated. The lightning arrester is connected between the cable and the ground, is usually connected with a protected device in parallel, can be arranged to effectively protect communication equipment, and once abnormal voltage occurs, the lightning arrester acts to play a role in protection. When the communication cable or equipment is operated under normal operating voltage, the lightning arrester does not act and is considered as an open circuit to the ground. Once high voltage occurs and the insulation of the protected equipment is endangered, the lightning arrester acts immediately to guide high voltage impact current to the ground, thereby limiting the voltage amplitude and protecting the insulation of the communication cable and the equipment. When the overvoltage disappears, the lightning arrester is quickly restored to the original state, so that the communication line works normally. Although the existing zinc oxide lightning arrester can effectively prevent lightning stroke, the existing zinc oxide lightning arrester has the defects of poor sealing property, easy damping and poor anti-corrosion function, and the service life of the existing zinc oxide lightning arrester is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound overcoat zinc oxide arrester, it is good that the utensil is provided with the leakproofness, and the problem in the technique that is provided with now can be solved to dampproofing anticorrosive shortcoming.

In order to achieve the above object, the utility model provides a following technical scheme:

a composite coated zinc oxide lightning arrester comprises an upper end, a lower chassis and a glass fiber reinforced plastic rod, wherein an isolation layer is arranged on the lower chassis, the glass fiber reinforced plastic rod is fixed in the middle of the isolation layer, a zinc oxide valve block is arranged on the isolation layer, a glass fiber reinforced plastic cylinder is arranged around the zinc oxide valve block, and a sealing gasket is arranged at the upper end of the zinc oxide valve block;

the upper end of the glass fiber reinforced plastic cylinder is movably connected with an upper end head, a ceramic layer is arranged around the glass fiber reinforced plastic cylinder, and a composite outer sleeve is fixed outside the ceramic layer;

bolts are processed on the upper end head and the lower chassis, and nuts are configured;

the lower chassis is composed of an outer ring, an isolating ring and a central bottom plate, the outer ring is located outside the isolating ring, threads are machined on the inner wall of the isolating ring, and the central bottom plate is arranged inside the isolating ring.

Preferably, the inner side of the top end of the glass fiber reinforced plastic cylinder and the outer side of the lower end of the upper end head are provided with threads in a machining mode.

Preferably, the composite coat is externally processed with umbrella skirts, and the size and the distance are consistent.

Preferably, the middle of the zinc oxide valve plate is hollow and is in contact with the glass fiber reinforced plastic rod.

Preferably, the thickness of the ceramic layer is centimeter, and the ceramic layer surrounds the glass fiber reinforced plastic cylinder without leaving a gap.

Preferably, the sealing gasket is a member made of an insulating material, and the size of the sealing gasket is the same as that of the bottom end of the upper end head.

Compared with the prior art, the utility model discloses a set up beneficial effect as follows:

the utility model discloses a compound overcoat zinc oxide arrester, after receiving the thunderbolt, the electric current comes the zinc oxide valve block through the upper end, and the zinc oxide valve block changes self resistance and puts the pressure, and the lightning-arrest effect is accomplished to the leading-in ground of electric current to the rethread other end ground connection. The glass fiber reinforced plastic cylinder, the sealing gasket, the ceramic layer, the composite outer sleeve and the isolating layer can be effectively sealed, and the effects of moisture prevention and corrosion prevention are achieved.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is an external view of the present invention;

fig. 3 is a structure view of the lower chassis of the present invention.

In the figure: 1. an upper end head; 2. a lower chassis; 3. a glass fiber reinforced plastic rod; 4. a zinc oxide valve plate; 5. a glass fiber reinforced plastic cylinder; 6. a gasket; 7. a ceramic layer; 8. compounding the outer sleeve; 9. a bolt; 10. a nut; 11. an isolation layer; 201. an outer ring; 202. an isolating ring; 203. a central floor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, the ordinary skilled person in the art can obtain other embodiments without creative work, and all belong to the protection scope of the present invention.

Referring to fig. 1-3, a composite coated zinc oxide lightning arrester comprises an upper end 1, a lower chassis 2, a glass fiber reinforced plastic rod 3, an isolation layer 11 arranged on the lower chassis 2, the isolation layer being moisture-proof, corrosive-proof, sealing-enhancing and moisture-releasing, the glass fiber reinforced plastic rod 3 fixed in the middle of the isolation layer 11, with its traction and support functions, on which a zinc oxide valve plate 4 is arranged, the zinc oxide valve plate 4 is a main lightning arrester, which changes resistance to conduct current when receiving electric shock, and ensures the safety of the electric wire, the zinc oxide valve plate 4 is hollow in the middle and contacts with the glass fiber reinforced plastic rod 3, for the stability of the whole structure, a glass fiber reinforced plastic cylinder 5 is arranged around the zinc oxide valve plate 4, which is a main fixture, a sealing gasket 6 is arranged on the upper end, the sealing gasket 6 is electrically insulated and as large as the bottom end of the upper end 1, which ensures the sealing of the internal structure, and is not easy, the inner side of the top end of the glass fiber reinforced plastic cylinder 5 and the outer side of the lower end of the upper end head 1 are provided with threads in a processing way, so that the connection is convenient, the sealing is easy, a ceramic layer 7 is arranged on the periphery, the thickness of the ceramic layer 7 is 1 cm, the ceramic layer surrounds the glass fiber reinforced plastic cylinder 5, no gap exists, the ceramic layer can be provided with effective water, moisture and corrosion resistance, a composite coat 8 is fixed outside the ceramic layer 7, an umbrella skirt is processed outside the composite coat 8, the size and the distance are consistent, mainly for preventing pollution and increasing creepage, bolts 9 are processed on the upper end head 1 and the lower chassis 2, nuts 10 are configured, the upper end head 1 and the lower chassis 2 are replaced by hanging rings and the like according to the requirements, the connection and the use with other facilities are convenient, the lower chassis 2 consists of an outer ring 201, an isolation ring 202 and a central bottom plate 203, the outer ring 201, the top end of the isolation ring 202 is connected with a ceramic layer 7 which separates the inside from the outside and isolates the inside, the inner side is provided with threads for being cracked with the glass fiber reinforced plastic cylinder 5, the central bottom plate 203 is a main substrate, and the isolation layer 11 is connected above the central bottom plate.

The novel realization principle is used; under the conventional state, the arrester is in the off state, after the external strong current that is provided with gets into, when voltage is greater than the protective value of arrester, zinc oxide valve block 4 will change self resistance, make it diminish, switch on, the electric current will get into zinc oxide valve block 4 through upper end 1, leading-in earth through the device of connecting, thereby make the amplitude restriction of overvoltage within the insulating tolerance of equipment, the harm of the overvoltage of high amplitude to equipment insulation has been avoided, after voltage resumes normally, zinc oxide valve block 4 will restore resistance.

In summary, the following steps: the utility model discloses a compound overcoat zinc oxide arrester, after receiving the thunderbolt, the electric current comes zinc oxide valve block 4 through last end 1, and zinc oxide valve block 4 changes self resistance and puts the pressure, and the lightning-arrest effect is accomplished to the leading-in ground of electric current to rethread other end ground connection. The glass fiber reinforced plastic cylinder 5, the sealing gasket 6, the ceramic layer 7, the composite outer sleeve 8 and the isolating layer 11 can be effectively sealed, and the effects of moisture prevention and corrosion prevention are achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a compound overcoat zinc oxide arrester, includes upper end (1), lower chassis (2), glass steel bar (3), its characterized in that: an isolation layer (11) is arranged on the lower chassis (2), a glass fiber reinforced plastic rod (3) is fixed in the middle of the isolation layer (11), a zinc oxide valve plate (4) is placed on the isolation layer (11), a glass fiber reinforced plastic cylinder (5) is arranged around the zinc oxide valve plate (4), and a sealing gasket (6) is placed at the upper end of the zinc oxide valve plate (4);

the upper end of the glass fiber reinforced plastic cylinder (5) is movably connected with the upper end head (1), a ceramic layer (7) is arranged around the glass fiber reinforced plastic cylinder (5), and a composite outer sleeve (8) is fixed outside the ceramic layer (7);

bolts (9) are processed on the upper end head (1) and the lower chassis (2), and nuts (10) are configured;

the lower chassis (2) is composed of an outer ring (201), an isolation ring (202) and a central bottom plate (203), the outer ring (201) is located outside the isolation ring (202), threads are machined on the inner wall of the isolation ring (202), and the central bottom plate (203) is arranged inside the isolation ring (202).

2. The composite coated zinc oxide arrester of claim 1, wherein: threads are processed on the inner side of the top end of the glass fiber reinforced plastic cylinder (5) and the outer side of the lower end of the upper end head (1).

3. The composite coated zinc oxide arrester of claim 1, wherein: the composite coat (8) is externally processed with umbrella skirts, and the size and the distance are consistent.

4. The composite coated zinc oxide arrester of claim 1, wherein: the middle of the zinc oxide valve plate (4) is hollow and is in contact with the glass fiber reinforced plastic rod (3).

5. The composite coated zinc oxide arrester of claim 1, wherein: the thickness of the ceramic layer (7) is 1 cm, and the ceramic layer (7) surrounds the glass fiber reinforced plastic cylinder (5) without leaving a gap.

6. The composite coated zinc oxide arrester of claim 1, wherein: the sealing gasket (6) is a component made of an insulating material, and the size of the sealing gasket (6) is the same as that of the bottom end of the upper end head (1).