CN219552598U - Interface device and density relay verification device with same - Google Patents
Interface device and density relay verification device with same Download PDFInfo
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- CN219552598U CN219552598U CN202223033117.9U CN202223033117U CN219552598U CN 219552598 U CN219552598 U CN 219552598U CN 202223033117 U CN202223033117 U CN 202223033117U CN 219552598 U CN219552598 U CN 219552598U
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Abstract
The utility model discloses an interface device and a density relay verification device with the same. Wherein, this system includes: a housing; the internal wiring fixed screw disc is arranged outside the shell and fixedly connected with the shell; the external wiring five-core jack is fixedly arranged on the upper side of the internal wiring fixing screw disc. The utility model solves the technical problems of low verification efficiency and poor device stability caused by the fact that alligator clips are required to be adopted to be connected with the density relay when the density relay is verified in the related technology.
Description
Technical Field
The utility model relates to the technical field of relay verification, in particular to an interface device and a density relay verification device with the same.
Background
The low-pressure sulfur hexafluoride SF6 gas density relay is commonly used in 35kV and 10kV SF6 gas insulation switch cabinets, and compared with the high-medium-pressure SF6 gas density relay, the low-pressure sulfur hexafluoride SF6 gas density relay is characterized in that the monitoring range is smaller, and only one alarm and one locking signal point is arranged. The device needs to be checked by a special low-pressure SF6 gas density relay calibrator, but the contact connection device equipped by the conventional low-pressure SF6 gas density relay calibrator is a 7-core device and cannot be used for checking the low-pressure SF6 gas density relay. During verification, the crocodile clamp and the density relay are required to be adopted, and the crocodile clamp is easy to fall off in the first mode, and is long in time consumption and low in verification efficiency in the second mode.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the utility model provides an interface device and a density relay verification device with the same, which at least solve the technical problems of low verification efficiency and poor device stability caused by the fact that alligator clips are required to be adopted to be connected with a density relay when the density relay is verified in the related technology.
According to an aspect of an embodiment of the present utility model, there is provided an interface apparatus including: a housing; the internal wiring fixing screw disc is arranged outside the shell and fixedly connected with the shell; the five core jacks of external connection are fixedly arranged on the upper side of the internal connection fixing screw disc.
Further, the external wiring five-core jack comprises a first low-voltage alarm signal jack, a second low-voltage alarm signal jack, a low-voltage locking signal jack, a third low-voltage alarm signal jack and a grounding jack.
Further, the external wiring five-core jack further includes: the first low pressure alarm signal line fixed screw, the second low pressure alarm signal line fixed screw, the low pressure shutting signal line fixed screw, the third low pressure alarm signal line fixed screw, and ground signal line fixed screw, wherein, first low pressure alarm signal line fixed screw sets up in first low pressure alarm signal jack outside, the second low pressure alarm signal line fixed screw sets up in the second low pressure alarm signal jack outside, the low pressure shutting signal line fixed screw sets up in the low pressure shutting signal jack outside, the third low pressure alarm signal line fixed screw sets up in the third low pressure alarm signal jack outside, the ground signal line fixed screw sets up in the outside of ground jack.
Further, the interface device also comprises a check point sampling lead fixing screw which is arranged at the lower side of the shell and is movably connected with the shell.
Further, the interface device also comprises an insulating pipe sleeve, the check point sampling lead fixing screw is connected with the shell through the insulating pipe sleeve, one side of the insulating pipe sleeve is fixedly connected with the lower part of the shell, and the other side of the insulating pipe sleeve is movably connected with the lead fixing screw.
Further, the shell comprises a shell and a back sealing cover, the internal wiring is fixed with a screw disc, and the external wiring five-core jack is integrally and fixedly connected with the outside of the shell; one side of the insulating pipe sleeve is fixedly connected with the lower part of the shell; the shell is fixedly connected with the back sealing cover.
Further, the interface device also comprises a shell fixing screw, and the shell and the back sealing cover are fixedly connected through the shell fixing screw.
Further, the external wiring five-core jack further comprises a back sealing cover connecting hole, and the shell and the back sealing cover are fixedly connected through a shell fixing screw and the back sealing cover connecting hole.
Further, the insulating sleeve is a plastic insulating sleeve or a rubber insulating sleeve.
According to another aspect of the embodiment of the present utility model, there is also provided a density relay verification apparatus, including: a density relay calibration device body; the interface device of any one of the above claims, wherein the interface device is connected to the density relay calibration device body through a communication line.
In the embodiment of the utility model, the shell is arranged; the internal wiring fixing screw disc is arranged outside the shell and fixedly connected with the shell; the five-core jack of external connection, fixed mounting in the upside of inside wiring fixed screw dish has reached the purpose of simply realizing the safe quick connection between check gauge and the density relay through interface arrangement to realized promoting density relay check efficiency and device connection stability's technological effect, and then solved because need adopt crocodile clamp and density relay contact when carrying out the check-up to the density relay among the correlation technique, the check-up that causes is efficient and the technical problem that device stability is poor.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 shows a schematic diagram of an interface device provided in accordance with an embodiment of the present utility model;
fig. 2 shows a schematic diagram of an external wiring five-core jack provided according to an embodiment of the present utility model;
FIG. 3 illustrates a schematic view of an internal wiring set screw plate provided in accordance with an embodiment of the present utility model;
FIG. 4 illustrates a schematic diagram of another interface device provided in accordance with an embodiment of the present utility model;
FIG. 5 shows a schematic diagram of a density relay verification device provided in accordance with an embodiment of the present utility model;
wherein the above figures include the following reference numerals:
a housing 10, a shell 101, a back seal cover 102;
an internal wiring fixing screw plate 20;
the external wiring five-core jack 30, the first low-voltage alarm signal jack 301, the second low-voltage alarm signal jack 302, the low-voltage locking signal jack 303, the third low-voltage alarm signal jack 304, the grounding jack 305, the back sealing cover connecting hole 306, the first low-voltage alarm signal wire fixing screw 311, the second low-voltage alarm signal wire fixing screw 312, the low-voltage locking signal wire fixing screw 313, the third low-voltage alarm signal wire fixing screw 314 and the grounding signal wire fixing screw 315;
a checkpoint sampling wire set screw 40; an insulating sleeve 50; a housing set screw 60;
a density relay verification device body 70; an interface device 80.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
As shown in fig. 1 to 4, an embodiment of the present utility model provides an interface device, including: a housing 10; the internal wiring fixing screw disc 20 is arranged outside the shell 10 and is fixedly connected with the shell 10; the external wiring five-core jack 30 is fixedly installed on the upper side of the internal wiring fixing screw plate 20.
The interface device provided by the embodiment is applied, and comprises a shell 10, an internal wiring fixing screw disc 20 and an external wiring five-core jack 30, wherein all the components are tightly connected. Based on the relation of connection, when using, with this interface arrangement one end with density relay signal socket press tightly be connected, the other end is connected with density relay calibration equipment, can develop density relay calibration test, have simple structure, convenient operation, characteristics such as the device connection is firm, is particularly useful for the calibration of low-voltage nature density relay.
As shown in fig. 2, the external wiring five-core jack 30 includes a first low-voltage warning signal jack 301, a second low-voltage warning signal jack 302, a low-voltage latch signal jack 303, a third low-voltage warning signal jack 304, and a ground jack 305. By adopting the structure, special five-core jacks are arranged for signal connection during density relay verification, and different jacks correspond to different access signals.
As shown in fig. 3, the external wiring five-core jack 30 further includes: the first low-voltage alarm signal wire fixing screw 311, the second low-voltage alarm signal wire fixing screw 312, the low-voltage locking signal wire fixing screw 313, the third low-voltage alarm signal wire fixing screw 314 and the grounding signal wire fixing screw 315, wherein the first low-voltage alarm signal wire fixing screw 311 is arranged outside the first low-voltage alarm signal jack 301, the second low-voltage alarm signal wire fixing screw 312 is arranged outside the second low-voltage alarm signal jack 302, the low-voltage locking signal wire fixing screw 313 is arranged outside the low-voltage locking signal jack 303, the third low-voltage alarm signal wire fixing screw 314 is arranged outside the third low-voltage alarm signal jack 304, and the grounding signal wire fixing screw 315 is arranged outside the grounding jack 305. By adopting the structure, the corresponding fixing screw is arranged for each jack in the five-core jacks so as to ensure the connection tightness of each signal wire and the interface device, and further realize the connection tightness of the density relay and the density relay checking device, so as to ensure the continuous normal checking of the density relay.
As shown in fig. 1 and 4, the interface device further includes a check point sampling lead fixing screw 40 disposed at the lower side of the housing 10 and movably connected with the housing 10. By adopting the structure, the check point sampling lead fixing screw 40 is fixedly installed, after the sampling lead fixing screw penetrates from the low-voltage locking signal jack 303, the check point sampling lead fixing screw 40 is fixedly installed, the lead falling off of the lead placement lead is improved, and the lead connection stability is improved. And, check point sampling wire set screw 40 links to each other with the bottom center of interface device casing 10 for fixed whole sampling wire and crocodile fastener, in order to realize the compactness of being connected between interface device and the density relay calibration equipment, guarantee density relay and density relay calibration equipment normal communication connection.
As shown in fig. 1 and 4, the interface device further includes an insulating sleeve 50, the check point sampling wire fixing screw 40 is connected with the housing 10 through the insulating sleeve 50, one side of the insulating sleeve 50 is fixedly connected with the lower portion of the housing 10, and the other side of the insulating sleeve 50 is movably connected with the wire fixing screw 40. With the above structure, the connecting wires are exposed through the insulating tube sleeve 50, so that the application safety of the equipment is enhanced.
Optionally, the insulating sleeve 50 is a plastic insulating sleeve or a rubber insulating sleeve, so as to perform an effective insulating function and enhance the application safety of the device.
As shown in fig. 1 and 4, the housing 10 includes a casing 101 and a back sealing cover 102, an internal wiring fixing screw plate 20, and an external wiring five-core jack 30 integrally and fixedly connected with the outside of the casing 101; one side of the insulating tube sleeve 50 is fixedly connected with the lower part of the shell 10; the housing 101 is fixedly connected with the back seal cover 102. With the above structure, the interface device is more convenient to detach and install by arranging the housing 10 as the outer shell 101 and the back sealing cover 102.
As shown in fig. 4, the interface device further includes a housing fixing screw 60, and the housing 101 and the back sealing cover 102 are fixedly connected by the housing fixing screw 60. With the above structure, the housing 101 and the back sealing cover 102 are screw-mounted by the housing fixing screw 60, so that the connection tightness between the housing 101 and the back sealing cover 102 is enhanced.
As shown in fig. 2, the external wiring five-core jack 30 further includes a back seal cover connection hole 306, and the housing 101 and the back seal cover 102 are fixedly connected through the housing fixing screw 60 and the back seal cover connection hole 306. By adopting the structure, the shell fixing screw 60 sequentially penetrates through the back sealing cover connecting hole 306, the shell 101 and the internal wiring fixing screw disc 20 to be screwed to the part sealing cover connecting hole 306, so that the connection tightness among the back sealing cover connecting hole 306, the shell 101, the internal wiring fixing screw disc 20 and the external wiring five-core jack 30 in the interface device is further enhanced, and the interface device structure is firmer.
As shown in fig. 5, the embodiment of the present utility model further provides a density relay verification device, where the density relay verification device includes: a density relay verification device body 70; the interface device 80 according to any one of the above, wherein the interface device 80 is connected to the density relay calibration device body 70 via a communication line.
By using the density relay checking device provided by the embodiment, the density relay checking device is connected with the interface device 80 through a communication line, so that the density relay checking device can be directly connected with a specific type of relay such as a low-pressure sulfur hexafluoride SF6 gas density relay for detection, an additional interface fixing device is not needed, the structure is simple, the operation is convenient, and the connection stability of the device is stronger.
The device provided by the embodiment has the following beneficial effects:
(1) When the device is used, one end of the interface device is tightly connected with the density relay signal socket, and the other end of the interface device is connected with the density relay verification device, so that a density relay verification test can be carried out;
(2) Corresponding fixing screws are arranged for each jack in the five-core jacks so as to ensure the connection compactness of each signal wire and the interface device, and further realize the connection compactness of the density relay and the density relay checking device so as to ensure the continuous normal checking of the density relay;
(3) The shell fixing screw 60 sequentially penetrates through the back sealing cover connecting hole 306, the shell 101 and the internal wiring fixing screw disc 20 to be connected with the part sealing cover connecting hole 306 in a screwed mode, connection tightness among the back sealing cover connecting hole 306, the shell 101, the internal wiring fixing screw disc 20 and the external wiring five-core jack 30 in the interface device is further enhanced, and the interface device structure is firmer.
In addition, it should be still noted that, optional or preferred implementations of the present embodiment may be referred to the related descriptions in the embodiments, and are not repeated herein.
The foregoing embodiment numbers of the present utility model are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present utility model, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. An interface device, the interface device comprising:
a housing (10);
the internal wiring fixing screw disc (20) is arranged outside the shell (10) and is fixedly connected with the shell (10);
and the external wiring five-core jack (30) is fixedly arranged on the upper side of the internal wiring fixing screw disc (20).
2. The interface device of claim 1, wherein the external wiring five-core jack (30) comprises a first low voltage alarm signal jack (301), a second low voltage alarm signal jack (302), a low voltage latch signal jack (303), a third low voltage alarm signal jack (304), and a ground jack (305).
3. The interface device of claim 2, wherein the external wiring five-core jack (30) further comprises: a first low voltage alarm signal line set screw (311), a second low voltage alarm signal line set screw (312), a low voltage lockout signal line set screw (313), a third low voltage alarm signal line set screw (314), and a ground signal line set screw (315), wherein,
the first low-voltage alarm signal wire fixing screw (311) is arranged on the outer side of the first low-voltage alarm signal jack (301), the second low-voltage alarm signal wire fixing screw (312) is arranged on the outer side of the second low-voltage alarm signal jack (302), the low-voltage locking signal wire fixing screw (313) is arranged on the outer side of the low-voltage locking signal jack (303), the third low-voltage alarm signal wire fixing screw (314) is arranged on the outer side of the third low-voltage alarm signal jack (304), and the ground signal wire fixing screw (315) is arranged on the outer side of the ground jack (305).
4. The interface device according to claim 1, further comprising a checkpoint sampling wire set screw (40) disposed on the underside of the housing (10) in movable connection with the housing (10).
5. The interface device according to claim 4, further comprising an insulating sleeve (50), wherein the checkpoint sampling wire fixing screw (40) is connected to the housing (10) through the insulating sleeve (50), one side of the insulating sleeve (50) is fixedly connected to the lower portion of the housing (10), and the other side of the insulating sleeve (50) is movably connected to the wire fixing screw (40).
6. The interface device according to claim 5, wherein the housing (10) comprises a shell (101) and a back sealing cover (102), an internal wiring set screw disc (20), an external wiring five-core jack (30) integrally and fixedly connected with the outside of the shell (101); one side of the insulating pipe sleeve (50) is fixedly connected with the lower part of the shell (10); the shell (101) is fixedly connected with the back sealing cover (102).
7. The interface device according to claim 6, further comprising a housing set screw (60), the housing (101) and the back seal cover (102) being fixedly connected by the housing set screw (60).
8. The interface device according to claim 7, wherein the external wiring five-core jack (30) further comprises a back seal cover connection hole (306), and the housing (101) and the back seal cover (102) are fixedly connected through the housing fixing screw (60) and the back seal cover connection hole (306).
9. Interface device according to claim 5, characterized in that the insulating sleeve (50) is a plastic insulating sleeve or a rubber insulating sleeve.
10. A density relay verification device, characterized in that the density relay verification device comprises:
a density relay calibration device body (70);
the interface device (80) of any of claims 1 to 9, wherein the interface device (80) is connected to the density relay verification device body (70) by a communication line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223033117.9U CN219552598U (en) | 2022-11-14 | 2022-11-14 | Interface device and density relay verification device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223033117.9U CN219552598U (en) | 2022-11-14 | 2022-11-14 | Interface device and density relay verification device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219552598U true CN219552598U (en) | 2023-08-18 |
Family
ID=87732696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223033117.9U Active CN219552598U (en) | 2022-11-14 | 2022-11-14 | Interface device and density relay verification device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219552598U (en) |
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2022
- 2022-11-14 CN CN202223033117.9U patent/CN219552598U/en active Active
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