CN201635208U - Ground insulating device for shield - Google Patents
Ground insulating device for shield Download PDFInfo
- Publication number
- CN201635208U CN201635208U CN2010201231782U CN201020123178U CN201635208U CN 201635208 U CN201635208 U CN 201635208U CN 2010201231782 U CN2010201231782 U CN 2010201231782U CN 201020123178 U CN201020123178 U CN 201020123178U CN 201635208 U CN201635208 U CN 201635208U
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- CN
- China
- Prior art keywords
- shield
- expansion bolt
- ground
- insulating
- billet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a ground insulating device for a shield, which is characterized in that the ground insulating device comprises an insulating plate arranged below a shield bottom plate and horizontally placed on concrete ground. A steel pad plate is arranged on the insulating plate. Two parallel adjusting pad plates perpendicular to the ground are arranged on the steel pad plate. A channel steel block is fixedly arranged on the internal side surfaces of the adjusting pad plates and is welded on the shield bottom plate. The steel pad plate and the insulating plate are arranged on the ground through an expansion bolt. An insulating tube is arranged around the expansion bolt. Insulating paint is arranged between the expansion bolt and the insulating tube and between the expansion bolt and a soil layer. An insulating pad is arranged between the expansion bolt and the steel pad plate. The utility model has the advantages that the insulating resistance is high and stable, the shield is firmly connected with the ground and the ground insulating device can be widely used for the ground insulation of other metal bodies fixedly with the ground.
Description
Technical field
The utility model relates to a kind of insulation against ground device, particularly about a kind of insulation against ground device that is applicable to shield.
Background technology
Screened room is a hexahedron room made from metal material, the metal material manufacturing is all adopted on its wall, ceiling and floor, because metal sheet has the characteristic of internal reflection loss in absorption loss, boundary reflection loss and the plate to incident electromagnetic wave, therefore has shielding action.Anechoic chamber, is the screened room that inner surface all is laid with absorbing material, to reduce the electromagnetic reflection of inner surface.Screened room and anechoic chamber, are the critical facilitys that uses in the electromagnetic compatibility test, and from safety and jamproof angle, the shield of screened room and anechoic chamber, all should ground connection.Cause the electric current on the shield to flow for fear of earth point current potential difference, should adopt single-point grounding, and shield should insulate over the ground before single-point grounding.Present ripe insulation against ground mode is to adopt the insulator pillar to support the base of shield, and still there are some shortcomings in this insulation mode, such as: complex structure, cost height, easy breakage etc.The trial of domestic existing other insulation scheme, but generally have the insulaion resistance instability, resistance is on the low side, and shield is connected shortcomings such as not firm with ground.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of screened room and is connected the high and stable insulation against ground device that is applicable to shield of insulaion resistance firm, simple in structure with ground.
For achieving the above object, the utility model is taked following technical scheme: a kind of insulation against ground device that is applicable to shield, it is characterized in that: it comprises and is arranged on the shield floor below and lies in a insulating slab on the concrete surface that described insulating slab is provided with a billet; It is two parallel and perpendicular to the adjustment backing plate on ground that described billet is provided with, and described two adjust on the medial surface of backing plates and are set with a channel-section steel, and described channel-section steel is welded on the described shield base plate; Described billet and insulating slab are provided with an insulation tube around described expansion bolt by an expansion bolt setting on the ground, are provided with insulating paint between described expansion bolt and insulation tube and the soil layer; Be provided with a felt pad between described expansion bolt and the billet.
The screw rod that centers on the nut of described expansion bolt and expose is provided with the protective cover of a sealing usefulness, is provided with epoxy glue between described protective cover and billet.
The expanding end of described insulation tube has the gap of cross cutting, and the cross depth of cut on the described insulation tube is identical with the cross depth of cut of the expand tube of expansion bolt.
Be provided with a killinite sheet between described billet and the insulating slab.
The utility model is owing to take above technical scheme, it has the following advantages: 1, because the utility model has adopted expansion bolt to fix the ground keel on concrete surface, it is enough firm that the mode of welding shield base plate on the ground keel, so shield then is connected with ground.2, because the utility model is provided with insulating slab between the billet of expansion bolt and concrete surface, and insulating paint is set in hole for the expansion bolt, be provided with insulation tube around expansion bolt simultaneously, and between expansion bolt and billet, be provided with felt pad, therefore guaranteed that shield insulation against ground resistance is enough high.3, because the utility model is provided with the protective cover of a sealing usefulness around the nut of expansion bolt and the screw rod that exposes; and between protective cover and billet, be provided with an epoxy glue; can reduce the influence of environmental factor (dust etc.), make resistance of the present utility model more stable insulaion resistance.4, owing to be provided with a killinite sheet between billet of the present utility model and the insulating slab, sweating heat destroys insulating slab in the time of therefore can preventing welding adjustment backing plate.5,, therefore be beneficial to anticorrosion owing to shield base plate of the present utility model, billet, adjustment cushion block, channel-section steel all adopt galvanized steel plain sheet.The utility model insulaion resistance is high and stable, and it is firm that shield is connected with ground, can be widely used in the insulation against ground of other and ground fastening metal body.
Description of drawings
Fig. 1 is the structural representation of the utility model insulation against ground device
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, the utility model is a plurality of insulation against ground devices that are disposed on base plate 1 below of shield, and each insulation against ground device comprises that one lies in the insulating slab 3 on the concrete surface 2, and insulating slab 3 is provided with a square billet 4.Two parallel adjustment backing plates 5, two are set between billet 4 and the shield base plate 1 adjust backing plates 5 and all be vertically set on the billet 4, such as: adjust backing plate 5 and can be welded on the billet 4.Be set with the ground keel of a channel-section steel 6 as shield on the medial surface of two adjustment backing plates 5, channel-section steel 6 is integrally welded with the base plate 1 of shield, by adjusting channel-section steel 6 and adjusting 5 length that overlap of backing plate, can adjust shield height overhead.For shield base plate 1 and ground 2 are connected firmly, an expansion bolt 7 passes billet 4 successively and insulating slab 3 is plugged in concrete surface 2 times, enters in the layer of concrete 8.In order to increase the insulation against ground resistance of expansion bolt 7, an insulation tube 9 is arranged in the arranged outside of expansion bolt 7.The wall thickness of insulation tube 9 is elected 1.2mm as, is made by epoxy resin, and the length of insulation tube 9 is identical with the expand tube of expansion bolt 7, the cutting of insulation tube 9 expanding end crosses, and depth of cut is identical with the expand tube depth of cut.All be provided with insulating paint 10 between expansion bolt 7 and insulation tube 9 and the soil layer 8.Be provided with a felt pad 11 between expansion bolt 7 and the billet 4, the screw rod of expansion bolt 7 passes felt pad 11, billet 4 and insulating slab 3 successively and enters in the layer of concrete 8.
In the foregoing description, the nut of expansion bolt 7 and the screw rod that exposes are outside equipped with a protective cover 12, at protective cover 12, are used for sealing, prevent dust and protection against the tide; Be provided with an epoxy glue 13 between protective cover 12 and the billet 4 simultaneously, protective cover 12 and epoxy glue 13 double actions can reduce the influence of environmental factor to insulaion resistance, make insulation against ground resistance of the present utility model stable as much as possible.
In the various embodiments described above, sweating heat destroys insulating slab 3 when adjusting backing plate 5 in order to prevent to weld, and is provided with a killinite sheet 14 between billet 4 and insulating slab 3, and mica sheet 14 can adopt 2mm thick.
In the various embodiments described above, because after the base plate of screened room 1 is installed, the base plate 1 of screened room, billet 4, adjust backing plate 5, channel-section steel 6 etc. and be difficult to carry out preservative treatment, thus the base plate 1 of screened room, billet 4, adjust backing plate 5, channel-section steel 6 all adopts galvanized steel plain sheet.In the present embodiment, the base plate 1 of screened room adopts the galvanized steel plain sheet of 3mm, and billet 4 and adjustment backing plate 5 all adopt the galvanized steel plain sheet of 5mm.
The experiment proved that single billet 4 insulation against ground resistance are surveyed 30m generally greater than 1000M Ω in the utility model
2The insulaion resistance of the screened room 1 of size can satisfy the requirement of screened room single-point grounding fully greater than 100M Ω.
In the various embodiments described above; the structure of each parts, the position is set and connects and all can change to some extent; on the basis of technical solutions of the utility model,, should not get rid of outside protection domain of the present utility model improvement and the equivalents that individual component is carried out.
Claims (5)
1. insulation against ground device that is applicable to shield is characterized in that: it comprises and is arranged on the shield floor below and lies in a insulating slab on the concrete surface that described insulating slab is provided with a billet; It is two parallel and perpendicular to the adjustment backing plate on ground that described billet is provided with, and described two adjust on the medial surface of backing plates and are set with a channel-section steel, and described channel-section steel is welded on the described shield base plate; Described billet and insulating slab are provided with an insulation tube around described expansion bolt by an expansion bolt setting on the ground, are provided with insulating paint between described expansion bolt and insulation tube and the soil layer; Be provided with a felt pad between described expansion bolt and the billet.
2. a kind of insulation against ground device that is applicable to shield as claimed in claim 1 is characterized in that: be provided with the protective cover of a sealing usefulness around the nut of described expansion bolt and the screw rod that exposes, be provided with epoxy glue between described protective cover and billet.
3. a kind of insulation against ground device that is applicable to shield as claimed in claim 1, it is characterized in that: the expanding end of described insulation tube has the gap of cross cutting, and the cross depth of cut on the described insulation tube is identical with the cross depth of cut of the expand tube of expansion bolt.
4. a kind of insulation against ground device that is applicable to shield as claimed in claim 2, it is characterized in that: the expanding end of described insulation tube has the gap of cross cutting, and the cross depth of cut on the described insulation tube is identical with the cross depth of cut of the expand tube of expansion bolt.
5. as claim 1 or 2 or 3 or 4 described a kind of insulation against ground devices that are applicable to shield, it is characterized in that: be provided with a killinite sheet between described billet and the insulating slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201231782U CN201635208U (en) | 2010-02-11 | 2010-02-11 | Ground insulating device for shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201231782U CN201635208U (en) | 2010-02-11 | 2010-02-11 | Ground insulating device for shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635208U true CN201635208U (en) | 2010-11-17 |
Family
ID=43079694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201231782U Expired - Lifetime CN201635208U (en) | 2010-02-11 | 2010-02-11 | Ground insulating device for shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201635208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793062A (en) * | 2010-02-11 | 2010-08-04 | 中国电力科学研究院 | Ground insulation device suitable for shields |
-
2010
- 2010-02-11 CN CN2010201231782U patent/CN201635208U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793062A (en) * | 2010-02-11 | 2010-08-04 | 中国电力科学研究院 | Ground insulation device suitable for shields |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101117 Effective date of abandoning: 20110713 |