CN211606049U - Electromagnetic interference resistance ground lead-out device - Google Patents
Electromagnetic interference resistance ground lead-out device Download PDFInfo
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- CN211606049U CN211606049U CN201922478801.XU CN201922478801U CN211606049U CN 211606049 U CN211606049 U CN 211606049U CN 201922478801 U CN201922478801 U CN 201922478801U CN 211606049 U CN211606049 U CN 211606049U
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- steel pipe
- ground lead
- electromagnetic interference
- grounding
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Abstract
The invention discloses an electromagnetic interference prevention grounding leading-out device which comprises two nonmagnetic steel pipes, wherein a grounding lead is arranged at the axis of each nonmagnetic steel pipe, an insulating rubber sheet is arranged on the outer side of the grounding lead, composite resin is filled between the insulating rubber sheet and the inner sides of the nonmagnetic steel pipes, an insulating fixed block is arranged on the inner sides of the nonmagnetic steel pipes, and sealing covers are arranged at two ends of each nonmagnetic steel pipe. According to the invention, the flange and the dredging device are arranged, the flange is connected with the two non-magnetic steel pipes, the connecting sleeve is used for fixing the grounding lead and is in threaded connection with the nut, the grounding lead is convenient to replace and maintain, and the effects of durability and maintenance cost reduction are achieved.
Description
Technical Field
The invention relates to the technical field of grounding system leading-out devices, in particular to an electromagnetic interference prevention grounding leading-out device.
Background
The grounding network of the urban rail transit station, the broadcasting station and the television station is positioned below the structural bottom plate, so when the electronic information system, the electrical system and the lightning protection system are grounded, the grounding network is connected with the grounding network through a grounding downlead to realize a reliable grounding system. In the traditional connection method, a grounding down lead is directly led out from a structural bottom plate or led out through a PVC pipe. By adopting the two measures, counterattack stray current easily appears on the grounding wire, the interference is generated on an electronic information system, and underground water easily seeps out along the grounding down lead, so that the requirement of the electromagnetic interference resistance level cannot be met. At present, a galvanized steel pipe is also adopted as a protection pipe, a water stop ring is welded on the outer side of the galvanized steel pipe, and silicon rubber or epoxy resin is poured between the galvanized steel pipe and a grounding wire, but the device has faults, such as the grounding lead is damaged and the like, and is difficult to replace, the maintenance cost is high, the device has faults, and the potential safety hazard can be caused because the device cannot be found and maintained in time.
Therefore, it is necessary to provide an anti-emi ground lead-out device to solve the above-mentioned problems.
Disclosure of Invention
The present invention is directed to an electromagnetic interference shielding ground leading-out device to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an electromagnetic interference resistance ground connection eduction gear includes two non-magnetic steel pipes, non-magnetic steel pipe axle center department is provided with the ground lead, the ground lead outside is provided with the insulating rubber skin, it has compound resin to fill between insulating rubber skin and the non-magnetic steel pipe inboard, non-magnetic steel pipe inboard is provided with the insulating fixed block, non-magnetic steel pipe both ends are provided with the closing cap, two be provided with the flange between the non-magnetic steel pipe, the inside device of dredging that is provided with of flange, dredge the device and include nut, screw and adapter sleeve, the one end of ground lead is provided with the adapter sleeve, the other end of adapter sleeve is provided with the nut, the through-hole has been seted up to one side of.
Preferably, a connecting ring is arranged at the top end of the grounding lead, a dispersing device is arranged at the bottom of the grounding lead, the dispersing device comprises a secondary guide head, a primary guide head, a seal seat and dispersing lines, the secondary guide head is arranged at the bottom end of the grounding lead, the primary guide head is arranged at the bottom of the secondary guide head, the dispersing lines are arranged at the bottom of the primary guide head, and the dispersing lines are arranged inside the seal seat.
Preferably, the top of the nonmagnetic steel pipe is provided with a protective cover, the top of the protective cover is provided with a low-frequency electromagnetic detector, the low-frequency electromagnetic detector is electrically connected with the grounding lead, and the outer side of the nonmagnetic steel pipe is provided with a water stop ring.
Preferably, the number of the connecting sleeves is two, threads are arranged on the outer sides of the connecting sleeves, grounding leads are arranged in the two connecting sleeves, and the two connecting sleeves are in threaded connection with the two sides of the nut.
Preferably, the ground lead is made by thick copper line, son leads the head and matches with the mother leads the head, be provided with sealed the pad between non-magnetic steel pipe and the flange, non-magnetic steel pipe and insulating fixed block fixed connection, non-magnetic steel pipe and seal ring fixed connection.
The non-magnetic water-stop sealing device is characterized in that a carbon fiber sealing gasket is arranged between the non-magnetic steel pipe (1) and the flange (7), the non-magnetic steel pipe (1) is fixedly connected with the insulating fixing block (5) through threads, the non-magnetic steel pipe (1) is fixedly connected with the sealing cover (6), and the non-magnetic steel pipe (1) is fixedly connected with the water stop ring (12) through threads.
Compared with the prior art, the invention has the beneficial effects that: the invention has the advantages that the flange and the dredging device are arranged, the flange is connected with the two non-magnetic steel pipes, the connecting sleeve is used for fixing the grounding lead and is in threaded connection with the nut, the grounding lead is convenient to replace and maintain, the effects of durability and maintenance cost reduction are achieved, the dispersing device is arranged, the secondary lead is connected with the grounding lead, the primary lead is connected with the dispersing line, the area of the dispersing line is increased, the effect of high efficiency and stable connection is achieved, the connecting ring, the protective cover and the low-frequency electromagnetic detector are arranged, the circuit is convenient to connect, the mistaken touch of pedestrians is avoided, the observation at any time is convenient.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a schematic structural diagram of the dredging device of the present invention.
FIG. 5 is a schematic view of a dispersing device according to the present invention.
In the figure: the device comprises a non-magnetic steel pipe 1, a grounding lead 2, a connecting ring 21, an insulating rubber sheet 3, a composite resin 4, an insulating fixing block 5, a sealing cover 6, a flange 7, a dredging device 8, a nut 81, a screw 82, an connecting sleeve 83, a dispersing device 9, a guide head 91, a guide head 92, a sealing seat 93, a dispersing line 94, a protective cover 10, a low-frequency electromagnetic detector 11 and a water stop ring 12.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-5, the present invention provides a technical solution: an electromagnetic interference resistance grounding leading-out device comprises two non-magnetic steel pipes 1, a grounding lead 2 is arranged at the axis of each non-magnetic steel pipe 1, an insulating rubber sheet 3 is arranged on the outer side of each grounding lead 2, composite resin 4 is filled between the insulating rubber sheet 3 and the inner side of each non-magnetic steel pipe 1, an insulating fixed block 5 is arranged on the inner side of each non-magnetic steel pipe 1, sealing covers 6 are arranged at two ends of each non-magnetic steel pipe 1, a flange 7 is arranged between the two non-magnetic steel pipes 1, a dredging device 8 is arranged inside each flange 7, each dredging device 8 comprises a nut 81, a screw 82 and a connecting sleeve 83, one end of each grounding lead 2 is provided with the connecting sleeve 83, the other end of each connecting sleeve 83 is provided with the nut 81, one side of each connecting sleeve 83 is provided with a through hole, the screw 82 is arranged in each through hole through the arrangement of the, the grounding lead 2 is convenient to replace and maintain, and the effects of durability and reduction of maintenance cost are achieved.
The top end of the grounding lead 2 is provided with a connecting ring 21, the bottom of the grounding lead 2 is provided with a dispersing device 9, the dispersing device 9 comprises a sub-guide head 91, a main guide head 92, a seal seat 93 and a dispersing line 94, the bottom end of the grounding lead 2 is provided with the sub-guide head 91, the bottom of the sub-guide head 91 is provided with the main guide head 92, the bottom of the main guide head 92 is provided with the dispersing line 94, the dispersing line 94 is arranged inside the seal seat 93, the sub-guide head 91 is connected with the grounding lead 2 through the dispersing device 9, the main guide head 92 is connected with the dispersing line 94, the area of contacting with a grounding grid is increased, the high-efficiency and stable connection effect is achieved, the top of the nonmagnetic steel pipe 1 is provided with a protective cover 10, the top of the protective cover 10 is provided with a low-frequency electromagnetic detector 11, the low-frequency electromagnetic detector 11 is, avoid the pedestrian mistake to touch, be convenient for survey at any time, reach safe effect, 1 outside of non-magnetic steel pipe is provided with seal ring 12, the quantity of adapter sleeve 83 is two, the adapter sleeve 83 outside is provided with the screw thread, two adapter sleeve 83 are inside all to be provided with ground lead 2, two adapter sleeve 83 threaded connection are in the both sides of nut 81, ground lead 2 is made by the thick copper line, son lead 91 and female lead 92 match, be provided with sealed the pad between non-magnetic steel pipe 1 and the flange 7, non-magnetic steel pipe 1 and 5 fixed connection of insulating fixed block, non-magnetic steel pipe 1 and closing cap 6 fixed connection, non-magnetic steel pipe 1 and seal ring 12 fixed connection.
The working principle is as follows: an electromagnetic interference preventing ground leading-out device guides electromagnetism generated by machines and the like to the underground, the underground is embedded with a ground net, a ground wire is used for connecting the ground net, a water stop ring 12 is arranged outside the device to prevent underground water from spreading and weakening the lead-in effect, a connecting device is connected, the device ground wire is connected with a connecting ring 21, a dispersion line 94 is connected with the ground net, the electromagnetism is transmitted to the ground from a ground lead 2, the connection state of the device is observed through a low-frequency electromagnetic detector 11, when the low-frequency electromagnetic detector 11 does not react, the ground lead 2 is replaced, two non-magnetic steel pipes 1 connected through a flange 7 are separated, the dispersion device 9 is taken down, the connecting sleeve 83 is screwed down at a nut 81, a loose screw 82 pulls out the ground lead 2 from the connecting sleeve 83, the two ground leads 2 are respectively taken out from two ends of the device and replaced, the reduction position is ensured to be sealed, the dispersion device 9 is connected, the dispersion device 9 connects the ground, the transmission efficiency is improved.
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 (6)
1. The utility model provides an electromagnetic interference resistance ground connection eduction gear, includes two non-magnetism nature steel pipes (1), non-magnetism nature steel pipe (1) axle center department is provided with ground lead (2), the ground lead (2) outside is provided with insulating rubber (3), it has compound resin (4) to fill between insulating rubber (3) and non-magnetism nature steel pipe (1) inboard, non-magnetism nature steel pipe (1) inboard is provided with insulating fixed block (5), non-magnetism nature steel pipe (1) both ends are provided with closing cap (6), its characterized in that: two be provided with flange (7) between non-magnetic steel pipe (1), flange (7) inside is provided with dredge device (8), dredge device (8) including nut (81), screw (82) and adapter sleeve (83), the one end of ground lead (2) is provided with adapter sleeve (83), the other end of adapter sleeve (83) is provided with nut (81), the through-hole has been seted up to one side of adapter sleeve (83), be provided with screw (82) in the through-hole.
2. An electromagnetic interference shielding ground lead-out device as claimed in claim 1, wherein: the top of ground lead (2) is provided with go-between (21), the bottom of ground lead (2) is provided with dispersion devices (9), dispersion devices (9) are including son lead (91), mother lead (92), seal receptacle (93) and dispersion line (94), ground lead (2) bottom is provided with son lead (91), son lead (91) bottom is provided with mother lead (92), mother lead (92) bottom is provided with dispersion line (94), dispersion line (94) set up inside seal receptacle (93).
3. An electromagnetic interference shielding ground lead-out device as claimed in claim 1, wherein: the electromagnetic water-stop device is characterized in that a protective cover (10) is arranged at the top of the nonmagnetic steel pipe (1), a low-frequency electromagnetic detector (11) is arranged at the top of the protective cover (10), the low-frequency electromagnetic detector (11) is electrically connected with the grounding lead (2), and a water-stop ring (12) is arranged on the outer side of the nonmagnetic steel pipe (1).
4. An electromagnetic interference shielding ground lead-out device as claimed in claim 1, wherein: the number of the connecting sleeves (83) is two, threads are arranged on the outer sides of the connecting sleeves (83), the grounding lead wires (2) are arranged inside the connecting sleeves (83), and the connecting sleeves (83) are in threaded connection with the two sides of the nuts (81).
5. An electromagnetic interference shielding ground lead-out device as claimed in claim 2, wherein: the ground lead (2) is made by thick copper wire, son lead (91) and mother lead (92) match, be provided with sealed the pad between non-magnetism nature steel pipe (1) and flange (7), non-magnetism nature steel pipe (1) and insulating fixed block (5) fixed connection, non-magnetism nature steel pipe (1) and closing cap (6) fixed connection, non-magnetism nature steel pipe (1) and seal ring (12) fixed connection.
6. An EMI shielding ground lead-out device as claimed in claim 5, wherein: the carbon fiber sealing gasket is arranged between the nonmagnetic steel pipe (1) and the flange (7), the nonmagnetic steel pipe (1) is fixedly connected with the insulation fixing block (5) through threads, and the nonmagnetic steel pipe (1) is fixedly connected with the water stop ring (12) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922478801.XU CN211606049U (en) | 2019-12-31 | 2019-12-31 | Electromagnetic interference resistance ground lead-out device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922478801.XU CN211606049U (en) | 2019-12-31 | 2019-12-31 | Electromagnetic interference resistance ground lead-out device |
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| Publication Number | Publication Date |
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| CN211606049U true CN211606049U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922478801.XU Active CN211606049U (en) | 2019-12-31 | 2019-12-31 | Electromagnetic interference resistance ground lead-out device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677833A (en) * | 2021-01-18 | 2021-04-20 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle shielding grounding system, wiring method thereof and rail vehicle |
-
2019
- 2019-12-31 CN CN201922478801.XU patent/CN211606049U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677833A (en) * | 2021-01-18 | 2021-04-20 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle shielding grounding system, wiring method thereof and rail vehicle |
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