Gas relay taking aviation plug as wire outlet mode

Abstract

The utility model relates to a gas relay using an aviation plug as an outgoing line mode, which comprises a body and an upper cover, and further comprises an aviation plug assembly, the aviation plug assembly comprises an aviation plug base, an aviation plug terminal and an aviation plug, the aviation plug base is connected to the upper cover through a bolt, the aviation plug terminal is embedded in the aviation plug base, and the aviation plug is used for being matched with the aviation plug base; and the lower end of the aviation plug terminal extends into the space of the body and is used for connecting a lead of the reed switch. The aviation plug is used as the wiring terminal, so that the problem that the traditional screw fixing type wiring terminal is easy to loosen is avoided, the connection reliability of the gas relay is improved, the wiring is simple, the maintenance is easy, and the use difficulty and the maintenance cost of the gas relay are reduced; the gas relay has waterproof and dustproof functions, and the environmental adaptability of the gas relay is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas relay technology field, concretely relates to a gas relay with aviation plug as outgoing line mode. BACKGROUND

[0002] The gas relay is one of the most important components of the non-electricity protection of the transformer, and is installed on the pipeline between the transformer and the oil pillow. When a fault occurs in the transformer, the gas relay generates corresponding action and sends out an alarm signal or trips, thereby protecting the transformer. The conventional gas relay usually adopts the screw-fixed wiring terminal, and has the problems of complex wiring, easy loosening, troublesome dismounting operation, troublesome on-site installation and wiring, troublesome calibration, and the trouble caused by the loss of the upper cover of the relay after long operation. SUMMARY

[0003] The utility model discloses a gas relay with aviation plug as outgoing line mode, and solves the problems of the conventional gas relay with screw-fixed wiring terminal.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A gas relay with aviation plug as outgoing line mode, comprising a body and an upper cover, further comprising an aviation plug assembly, the aviation plug assembly comprising a plug base, a plug terminal and a plug, the plug base being connected to the upper cover by bolts, the plug terminal being embedded in the plug base, and the plug being used for cooperating with the plug base; the lower end of the plug terminal extends into the space of the body and is used for connecting the lead of the dry reed.

[0006] Further, the part of the plug base extending out of the upper cover is provided with external threads and is threadedly connected with a nut, and the nut is used for pressing the plug after being inserted.

[0007] Further, the lower end of the plug terminal has a notch, and a taper hole sleeve is sleeved on the lower end of the plug terminal.

[0008] Further, the plug terminal has an axial limiting part, and a first sealing ring is arranged between the axial limiting part and the plug base.

[0009] Further, the part of the plug terminal below the axial limiting part is a threaded segment.

[0010] Further, a step is formed between the part of the plug base extending into the upper cover and the part extending out of the upper cover, and a second sealing ring is arranged at the contact area between the step and the upper side of the upper cover.

[0011] Further, a third sealing ring is arranged between the upper cover and the body.

[0012] Further, the upper cover is also connected with an oil drain valve and a probe.

[0013] Further, the upper cover is also connected with a hydrogen sensor, a probe of which extends into the space of the body for detecting the amount of dissolved hydrogen in the oil in the gas relay.

[0014] Further, the upper cover is also connected with a liquid level meter, a detection section of which extends into the space of the body for detecting the liquid level inside the gas relay.

[0015] The utility model has the advantages of:

[0016] The utility model discloses a gas relay with a jack as a terminal, which avoids the problem of traditional screw-fixed terminal being easy to loosen, improves the connection reliability of the gas relay, and has the advantages of simple wiring and easy maintenance, reduces the use difficulty and maintenance cost of the gas relay, and has the functions of waterproof and dustproof, and improves the environmental adaptability of the gas relay.

[0017] The utility model only changes the terminal wiring mode, retains the light gas alarm and heavy gas tripping protection functions of the gas relay, and the sealing performance of the relay body is good. It is suitable for all baffle type and float type gas relays on the market. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the appearance of the gas relay with a jack as an outlet mode of the utility model;

[0019] Figure 2 is a partial sectional view of the gas relay with a jack as an outlet mode of the utility model;

[0020] Figure 3 is Figure 2 a partial view in the structure shown in the figure;

[0021] Figure 4 is a perspective view of the jack terminal;

[0022] Figure 5 is a sectional view of the tapered hole screw sleeve.

[0023] 1, the body; 2, the upper cover; 3, the oil drain valve; 4, the probe; 5, the hydrogen sensor; 6, the liquid level meter; 7, the jack plug; 8, the jack terminal; 81, the axial limiting portion; 82, the notch; 9, the jack base; 10, the tapered hole screw sleeve; 11, the first sealing ring; 12, the second sealing ring; 13, the third sealing ring; 14, the nut. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of the present application.

[0025] Embodiments of the present application:

[0026] As shown in the drawings, a gas relay with an aviation plug as an outgoing line mode, comprising a body 1 and an upper cover 2, further comprising an aviation plug assembly. The body 1 is the existing structure, which is used to install light and heavy gas action components inside, and retains the original light and heavy gas protection function. The upper cover 2 is connected with the upper side of the body 1 by bolts. The aviation plug assembly is a new structure of the present application. Figures 1-5 The aviation plug assembly comprises an aviation plug base 9, an aviation plug terminal 8 and an aviation plug 7. The aviation plug base 9 is connected to the upper cover 2 by bolts. The aviation plug base 9 has bolt holes, and the bolts can be round head hexagonal bolts, so that the bolts are not exposed. The aviation plug terminal 8 is embedded in the aviation plug base 9, and the aviation plug 7 is used to cooperate with the aviation plug base 9.

[0027] The part of the aviation plug base 9 extending out of the upper cover 2 is provided with external threads for threaded connection with a nut 14, and the nut is used to press the aviation plug 7 after being inserted. The aviation plug 7 is a cylindrical structure as a whole, and has a line outlet at the upper part for remote data transmission. The bottom outer periphery of the aviation plug 7 is provided with a pressing ring for limiting cooperation with the nut 14. During installation, the aviation plug 7 is inserted into the aviation plug base 9, and then the nut 14 is screwed on the aviation plug 7, the nut 14 presses the above-mentioned pressing ring, and the reliable connection between the aviation plug 7 and the aviation plug base 9 is realized.

[0028] The lower end of the aviation plug terminal 8 extends into the space of the body 1 for connecting the lead of the dry reed. The aviation plug terminal 8 has an axial limiting portion 81, and the part below the axial limiting portion 81 of the aviation plug terminal 8 is a threaded segment for cooperation with the aviation plug base 9. In the present embodiment, seven aviation plug terminals 8 are provided and arranged alternately; the aviation plug base 9 protrudes downward with a sleeve, and the number of sleeves is the same as the number of aviation plug terminals 8, and the sleeves are also arranged alternately.

[0029]

[0030] ​Most of the terminal block 8 is located within the sleeve, with its lower end extending out. The lower end of the terminal block 8 has three circumferentially distributed slots 82 and a wire insertion hole for connecting the reed switch lead. The slots 82 allow the lower end of the terminal block 8 to contract radially under pressure. A tapered threaded sleeve 10 is fitted onto the lower end of the terminal block 8. After the reed switch lead extends into the slot 82, it is threaded onto the lower end of the terminal block 8 using the tapered threaded sleeve 10. The slot 82 deforms under pressure, thereby locking the reed switch lead and preventing loosening. The reed switch is a component in the aforementioned light and heavy gas actuation assembly.

[0031] The above describes the basic structure of the aviation connector assembly, which also includes a sealing structure. The aviation connector terminal 8 has an axial limiting part 81, and a first sealing ring 11 is provided between the lower side of the axial limiting part 81 and the aviation connector base 9.

[0032] A step is formed between the portion of the insert base 9 that extends into the upper cover 2 and the portion that extends out of the upper cover 2. A second sealing ring 12 is provided in the contact area between the step and the upper side of the upper cover 2. This can be understood as having a plurality of second sealing rings 12 fitted onto the aforementioned sleeve position. The mounting groove of the second sealing ring 12 is formed in the upper cover 2.

[0033] Figure 2 and 3 As shown, a third sealing ring 13 is provided between the upper cover 2 and the body 1. The mounting groove of the third sealing ring 13 is formed in the upper cover 2.

[0034] Figure 1 As shown, the upper cover 2 is also connected to an oil drain valve 3 and a probe 4, which are existing functional components.

[0035] Figure 1 As shown, a hydrogen sensor 5 is also connected to the upper cover 2. The probe of the hydrogen sensor 5 extends into the space of the main body 1 to detect the amount of dissolved hydrogen in the oil inside the gas relay.

[0036] Figure 1 As shown, a level gauge 6 is also connected to the upper cover 2. The level gauge 6 is a capacitive level gauge, and its detection section extends into the space of the main body 1 to detect the liquid level inside the gas relay. In other embodiments, the interface between the hydrogen sensor 5 and the level gauge 6 can also be used to install other types of sensors.

Claims

1. A gas relay with an aviation plug as the outgoing line, comprising a body and a top cover, characterized in that: The aviation plug assembly comprises an aviation plug base, an aviation plug terminal, and an aviation plug. The aviation plug base is connected to the upper cover by bolts. The aviation plug terminal is embedded in the aviation plug base. The aviation plug is used to cooperate with the aviation plug base. The lower end of the aviation plug terminal extends into the space of the body and is used to connect the lead wire of the dry reed tube.

2. The gas relay according to claim 1, characterized in that: The part of the aviation plug base extending out of the upper cover is provided with external threads and is connected with a nut by threads. The nut is used to compress the aviation plug after embedding.

3. The gas relay according to claim 1, wherein: The lower end of the aviation plug terminal has a notch. A tapered hole sleeve is sleeved on the lower end of the aviation plug terminal.

4. The gas relay according to claim 1, wherein: The aviation plug terminal has an axial limiting part. A first sealing ring is arranged between the axial limiting part and the aviation plug base.

5. The gas relay according to claim 4, wherein: The part of the aviation plug terminal below the axial limiting part is a threaded segment.

6. The gas relay according to claim 2, wherein: A step is formed between the part of the aviation plug base extending into the upper cover and the part extending out of the upper cover. A second sealing ring is arranged on the upper side contact area of the step and the upper cover.

7. The gas relay according to claim 1, wherein: A third sealing ring is arranged between the upper cover and the body.

8. The gas relay according to claim 1, wherein: An oil drain valve and a probe are further connected to the upper cover.

9. The gas relay according to claim 1, wherein: A hydrogen sensor is further connected to the upper cover. The probe of the hydrogen sensor extends into the space of the body and is used to detect the amount of dissolved hydrogen in the oil in the gas relay.

10. The gas relay according to claim 1, wherein: A liquid level meter is further connected to the upper cover. The detection segment of the liquid level meter extends into the space of the body and is used to detect the liquid level inside the gas relay.

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