CN112034304B - Isolation system between low-voltage circuit and data acquisition monitoring circuit - Google Patents
Isolation system between low-voltage circuit and data acquisition monitoring circuit Download PDFInfo
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- CN112034304B CN112034304B CN202010876856.0A CN202010876856A CN112034304B CN 112034304 B CN112034304 B CN 112034304B CN 202010876856 A CN202010876856 A CN 202010876856A CN 112034304 B CN112034304 B CN 112034304B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
Abstract
The invention relates to an isolation system between a low-voltage circuit and a data acquisition monitoring circuit, wherein two ends of a connecting wire are respectively connected with a second shield cover and a third shield cover, one end of the second shield cover, which is far away from the connecting wire, is provided with a first connecting pipe, the first connecting pipe is provided with a low-voltage circuit connecting sleeve, one end of the third shield cover, which is far away from the connecting wire, is provided with a second connecting pipe, the second connecting pipe is provided with a data acquisition monitoring circuit connecting sleeve, the periphery of the connecting wire is sleeved with a first shield cover, the periphery of the first shield cover is sleeved with a metal outer sheath, a filling layer is arranged between the first shield cover and the metal outer sheath, the metal outer sheath is wrapped on the peripheries of the second connecting pipe and the first connecting pipe, and a first installation cavity is arranged in the first shield cover connecting pipe. The invention realizes the shielding effect between the low-voltage circuit and the data acquisition monitoring circuit, and realizes that the two circuits do not interfere with each other, thereby improving the working stability of the data acquisition monitoring circuit.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to an isolation system between a low-voltage circuit and a data acquisition monitoring circuit.
Background
In recent years, with the continuous development of national economy and the continuous promotion of urbanization process in China, the power cable is widely applied to the advantages of getting rid of the limitation of overhead corridors, saving urban land, beautifying urban environment, improving power supply reliability and the like. High-voltage cable and cable tunnel increase rapidly for power supply company faces huge pressure in the aspect of the operation maintenance of high-voltage cable and cable tunnel. On one hand, a cable line and a cable tunnel are rapidly increased; on the other hand, the replenishment of cable operation and maintenance personnel is not followed up in time, and a fault phenomenon occurs. Meanwhile, high-voltage cables and cable tunnel management still face many problems.
In practical use, the low-voltage circuit also can produce electromagnetic interference for data acquisition monitoring circuit receives the influence, along the accuracy that influences data acquisition, so this need urgently need develop the isolation system between a low-voltage circuit and the data acquisition monitoring circuit and solve the problem among the prior art.
Disclosure of Invention
The present invention is directed to an isolation system between a low voltage circuit and a data collection monitoring circuit to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an isolated system between low voltage circuit and data acquisition monitoring circuit, includes connecting wire, second shield cover and third shield cover are connected respectively to connecting wire's both ends, the one end that connecting wire was kept away from to the second shield cover is equipped with first connecting pipe, be equipped with the low voltage circuit adapter sleeve on the first connecting pipe, the one end that connecting wire was kept away from to the third shield cover is equipped with the second connecting pipe, be equipped with the data acquisition monitoring circuit adapter sleeve on the second connecting pipe, first shield cover has been cup jointed to connecting wire's periphery, the metal oversheath has been cup jointed to the periphery of first shield cover, be equipped with the filling layer between first shield cover and the metal oversheath, the metal oversheath parcel is in the periphery of second connecting pipe and first connecting pipe, be equipped with first installation cavity in the first shield cover.
As a further scheme of the invention: a fixing sleeve is arranged in the first shielding cover and is installed on the periphery of the connecting wire.
As a further scheme of the invention: one side that the upper end of fixed cover is close to first shield cover is equipped with the second piston, one side that the second piston is close to first shield cover is equipped with first piston shaft, one side that first piston shaft is close to first shield cover is equipped with the second piston, the second piston is fixed on first shield cover.
As a further scheme of the invention: and a first spring is arranged between the first piston and the second piston and sleeved on the periphery of the first piston shaft.
As a further scheme of the invention: one side that the lower extreme of fixed cover is close to first shield cover is equipped with the third piston, one side that the third piston is close to first shield cover is equipped with the second piston axle, one side that the second piston axle is close to first shield cover is equipped with the fourth piston, the fourth piston is fixed on first shield cover.
As a further scheme of the invention: and a second spring is arranged between the third piston and the fourth piston and sleeved on the periphery of the second piston shaft.
As a further scheme of the invention: establish the second installation cavity in the second shield cover, the bottom is equipped with the mounting panel in the second installation cavity, be equipped with the pivot on the mounting panel, the pivot periphery is equipped with the leading wheel that sets up with the connecting wire contact, the periphery of leading wheel is equipped with the buffering axle sleeve, be equipped with the fourth shield cover of cup jointing in the connecting wire periphery in the second shield cover.
As a further scheme of the invention: the bottom is equipped with the fifth piston in the second installation cavity, one side that the fifth piston is close to the mounting panel is equipped with the third piston axle, the third piston axle is fixed on the mounting panel, be equipped with the third spring between fifth piston and the mounting panel, the third spring cup joints the periphery at the third piston axle.
As a further scheme of the invention: the low-voltage circuit connecting sleeve is provided with a buffer layer, a fifth shielding case and a metal sheath layer in sequence on the periphery of the connecting lead.
As a further scheme of the invention: one side of the buffer layer, which is close to the connecting wires, is provided with a plurality of elastic limiting bulges which are in contact with the connecting wires.
Compared with the prior art, the invention has the beneficial effects that: during the use, the low voltage circuit wire is connected on the low voltage circuit connecting sleeve, data acquisition monitoring circuit's wire is connected on data acquisition monitoring circuit connecting sleeve, the second shield cover plays the electromagnetic shield to linking department between low voltage circuit wire and the connecting wire, the third shield cover plays the electromagnetic shield effect of being connected between data acquisition monitoring circuit wire and the connecting wire, and first shield cover plays the electromagnetic shield effect to the connecting wire, thereby the shielding effect between low voltage circuit and the data acquisition monitoring circuit has been realized, realize that two circuits do not have the interference each other, thereby the stability of data acquisition monitoring circuit work has been improved.
Other features and advantages of the present invention will be disclosed in more detail in the following detailed description of the invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the isolation system between the low voltage circuit and the data acquisition monitoring circuit according to the present invention;
FIG. 2 is a cross-sectional view of the mating of the connecting wires with the second shield in the isolation system between the low voltage circuit and the data acquisition and monitoring circuit of the present invention;
FIG. 3 is an enlarged partial view of FIG. 2 at A;
fig. 4 is a cross-sectional view of a low-voltage circuit connection sleeve in an isolation system between a low-voltage circuit and a data acquisition monitoring circuit according to the present invention.
In the figure: 1. a low-voltage circuit connecting sleeve; 2. a metal outer sheath; 3. a filling layer; 4. a first shield case; 5. a first mounting cavity; 6. a first connecting pipe; 7. connecting a lead; 8. a second connection pipe; 9. the data acquisition monitoring circuit is connected with the connecting sleeve; 10. a third shield can; 11. a first piston; 12. a first piston shaft; 13. a first spring; 14. a second piston; 15. fixing a sleeve; 16. a third piston; 17. a second spring; 18. a fourth piston; 19. a fourth shield can; 20. a second mounting cavity; 21. a fifth piston; 22. a third piston shaft; 23. a third spring; 24. mounting a plate; 25. a rotating shaft; 26. a guide wheel; 27. a buffer shaft sleeve; 28. a buffer layer; 29. an elastic limit bulge; 30. a metal sheath layer; 31. a second shield case; 32. a second piston shaft; 33. and a fifth shield can.
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 to 4, in an embodiment of the present invention, an isolation system between a low-voltage circuit and a data acquisition monitoring circuit includes a connection wire 7, two ends of the connection wire 7 are respectively connected to a second shield 31 and a third shield 10, one end of the second shield 31, which is far away from the connection wire 7, is provided with a first connection pipe 6, the first connection pipe 6 is provided with a low-voltage circuit connection sleeve 1, one end of the third shield 10, which is far away from the connection wire 7, is provided with a second connection pipe 8, the second connection pipe 8 is provided with a data acquisition monitoring circuit connection sleeve 9, the periphery of the connection wire 7 is sleeved with a first shield 4, the periphery of the first shield 4 is sleeved with a metal outer sheath 2, a filling layer 3 is provided between the first shield 4 and the metal outer sheath 2, the metal outer sheath 2 is wrapped around the second connection pipe 8 and the first connection pipe 6, and a first installation cavity 5 is provided in the first shield 4. During the use, the low-voltage circuit wire is connected on low-voltage circuit adapter sleeve 1, data acquisition monitoring circuit's wire is connected on data acquisition monitoring circuit adapter sleeve 9, second shield cover 31 plays the electromagnetic shield to linking department between low-voltage circuit wire and connecting wire 7, third shield cover 10 plays the electromagnetic shield effect of being connected between data acquisition monitoring circuit wire and the connecting wire 7, and first shield cover 4 plays the electromagnetic shield effect to connecting wire 7, thereby the shielding effect between low-voltage circuit and the data acquisition monitoring circuit has been realized, realize that two circuits do not have the interference each other, thereby the stability of data acquisition monitoring circuit work has been improved.
In the present embodiment, a fixing sleeve 15 is provided in the first shield case 4, and the fixing sleeve 15 is mounted on the outer periphery of the connecting wire 7. Through establishing fixed cover 15 in first shield cover 4, fixed cover 15 is installed in connecting wire 7's periphery, so can play the limiting displacement to connecting wire 7, has improved the stability of connecting wire 7 installation.
In this embodiment, a second piston 14 is disposed on one side of the upper end of the fixing sleeve 15 close to the first shielding case 4, a first piston shaft 12 is disposed on one side of the second piston 14 close to the first shielding case 4, a second piston 14 is disposed on one side of the first piston shaft 12 close to the first shielding case 4, and the second piston 14 is fixed on the first shielding case 4. Through establishing second piston 14 and first piston shaft 12 in the upper end of fixed cover 15 is close to one side of first shield cover 4, first piston shaft 12 is flexible in second piston 14, has realized the buffering support to fixed cover 15, has effectively improved the stability of fixed cover 15 when using.
In this embodiment, a first spring 13 is disposed between the first piston 11 and the second piston 14, and the first spring 13 is sleeved on the outer periphery of the first piston shaft 12. Through the elasticity restoring force that utilizes first spring 13, realized the buffering to fixed cover 15 installation, improved the shock attenuation when connecting wire 7 uses, effectively improved the stability when connecting wire 7 uses, and then effectively prolonged connecting wire 7's life.
In this embodiment, a third piston 16 is disposed on a side of the lower end of the fixed sleeve 15 close to the first shielding case 4, a second piston shaft 32 is disposed on a side of the third piston 16 close to the first shielding case 4, a fourth piston 18 is disposed on a side of the second piston shaft 32 close to the first shielding case 4, and the fourth piston 18 is fixed on the first shielding case 4. Through establishing third piston 16, second piston shaft 32 and fourth piston 18 at the lower extreme of fixed cover 15, second piston shaft 32 is flexible between third piston 16 and fourth piston 18, has realized fixed cover 15 at the buffering of vertical direction, has improved connecting wire 7's buffering effect, has guaranteed the stability of connecting wire 7 when using.
In the present embodiment, a second spring 17 is disposed between the third piston 16 and the fourth piston 18, and the second spring 17 is sleeved on the outer periphery of the second piston shaft 32. By utilizing the elastic restoring force of the second spring 17, the support of the fixed sleeve 15 is realized, the buffering effect on the fixed sleeve 15 is realized, and the buffering and shock absorption on the connecting wire 7 are realized.
In this embodiment, establish second installation cavity 20 in the second shield cover 31, the bottom is equipped with mounting panel 24 in the second installation cavity 20, be equipped with pivot 25 on the mounting panel 24, pivot 25 periphery is equipped with the leading wheel 26 that sets up with connecting wire 7 contact, the periphery of leading wheel 26 is equipped with buffering axle sleeve 27, be equipped with the fourth shield cover 19 of cup jointing in connecting wire 7 periphery in the second shield cover 31. Through establishing second installation cavity 20 in second shield cover 31 to establish mounting panel 24 in second installation cavity 20, locate leading wheel 26 that connecting wire 7 contact set up on the mounting panel 24, realize the spacing guide effect to connecting wire 7 by the wire wheel, played the supporting role to connecting wire 7, can also play the guard action to connecting wire 7, effectively prolonged connecting wire 7's life.
In this embodiment, a fifth piston 21 is arranged at the bottom in the second mounting cavity 20, a third piston shaft 22 is arranged on one side, close to the mounting plate 24, of the fifth piston 21, the third piston shaft 22 is fixed on the mounting plate 24, a third spring 23 is arranged between the fifth piston 21 and the mounting plate 24, and the third spring 23 is sleeved on the periphery of the third piston shaft 22. Through establishing fifth piston 21 and third piston shaft 22 at the bottom in second installation cavity 20 for third piston shaft 22 is flexible in fifth piston 21, and utilizes the elastic restoring force of third spring 23, has realized leading wheel 26 to the support of connecting wire 7, thereby plays the spacing guard action to connecting wire 7, has effectively prolonged connecting wire 7's life.
In this embodiment, the low-voltage circuit connecting sleeve 1 is provided with a buffer layer 28, a fifth shielding case 33 and a metal sheath layer 30 in sequence on the periphery of the connecting lead 7. The arrangement can play a good electromagnetic shielding role at the periphery of the low-voltage circuit connecting sleeve 1, and also can play a good protection role, so that the service life of the connecting wire 7 is prolonged.
In this embodiment, a plurality of elastic limiting protrusions 29 contacting with the connecting wire 7 are disposed on one side of the buffer layer 28 close to the connecting wire 7. Through establish the spacing arch 29 of elasticity that a plurality of and connecting wire 7 contact set up in one side that the cushion collar is close to connecting wire 7, can play the limiting displacement to connecting wire 7, in addition, spacing arch has elasticity, can play fine cushioning effect, realizes the guard action to connecting wire 7.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (10)
1. The utility model provides an isolated system between low-voltage circuit and data acquisition monitoring circuit, its characterized in that, includes connecting wire, second shield cover and third shield cover are connected respectively to connecting wire's both ends, the one end that connecting wire was kept away from to the second shield cover is equipped with first connecting pipe, be equipped with the low-voltage circuit adapter sleeve on the first connecting pipe, the one end that connecting wire was kept away from to the third shield cover is equipped with the second connecting pipe, be equipped with the data acquisition monitoring circuit adapter sleeve on the second connecting pipe, first shield cover has been cup jointed to connecting wire's periphery, the metal oversheath has been cup jointed to the periphery of first shield cover, be equipped with the filling layer between first shield cover and the metal oversheath, the metal oversheath wraps up in the periphery of second connecting pipe and first connecting pipe, be equipped with first installation cavity in the first shield cover.
2. The isolation system between the low voltage circuit and the data acquisition and monitoring circuit as claimed in claim 1, wherein a retaining sleeve is provided inside the first shield, said retaining sleeve being mounted on the outer periphery of the connecting wire.
3. The isolation system according to claim 2, wherein the upper end of the fixing sleeve is provided with a second piston at a side close to the first shielding case, the second piston is provided with a first piston shaft at a side close to the first shielding case, the first piston is provided with a first piston at a side close to the first shielding case, and the first piston is fixed on the first shielding case.
4. The isolation system of claim 3, wherein a first spring is disposed between the first piston and the second piston, and the first spring is sleeved on the outer circumference of the first piston shaft.
5. The isolation system according to claim 2, wherein a third piston is disposed at a side of the lower end of the fixing sleeve close to the first shielding case, a second piston shaft is disposed at a side of the third piston close to the first shielding case, a fourth piston is disposed at a side of the second piston shaft close to the first shielding case, and the fourth piston is fixed on the first shielding case.
6. The isolation system of claim 5, wherein a second spring is disposed between the third piston and the fourth piston, and the second spring is sleeved on the outer circumference of the second piston shaft.
7. The isolation system between the low-voltage circuit and the data acquisition monitoring circuit as claimed in claim 1, wherein a second mounting cavity is formed in the second shielding cover, a mounting plate is arranged at the bottom in the second mounting cavity, a rotating shaft is arranged on the mounting plate, a guide wheel which is in contact with the connecting lead is arranged on the periphery of the rotating shaft, a buffer shaft sleeve is arranged on the periphery of the guide wheel, and a fourth shielding cover which is sleeved on the periphery of the connecting lead is arranged in the second shielding cover.
8. The isolation system between the low-voltage circuit and the data acquisition and monitoring circuit as claimed in claim 7, wherein a fifth piston is arranged at the bottom of the second mounting cavity, a third piston shaft is arranged on one side of the fifth piston close to the mounting plate, the third piston shaft is fixed on the mounting plate, a third spring is arranged between the fifth piston and the mounting plate, and the third spring is sleeved on the periphery of the third piston shaft.
9. The isolation system between the low-voltage circuit and the data acquisition monitoring circuit as claimed in claim 1, wherein the low-voltage circuit connection sleeve is provided with a buffer layer, a fifth shielding case and a metal sheath layer in sequence on the periphery of the connecting lead.
10. The isolation system according to claim 9, wherein the buffer layer has a plurality of elastic limiting protrusions contacting the connecting wires on one side thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010876856.0A CN112034304B (en) | 2020-08-27 | 2020-08-27 | Isolation system between low-voltage circuit and data acquisition monitoring circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010876856.0A CN112034304B (en) | 2020-08-27 | 2020-08-27 | Isolation system between low-voltage circuit and data acquisition monitoring circuit |
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| CN112034304A CN112034304A (en) | 2020-12-04 |
| CN112034304B true CN112034304B (en) | 2023-03-24 |
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