CN201638635U - Connecting line cavity of explosion-proof dry type transformer - Google Patents
Connecting line cavity of explosion-proof dry type transformer Download PDFInfo
- Publication number
- CN201638635U CN201638635U CN2009202824015U CN200920282401U CN201638635U CN 201638635 U CN201638635 U CN 201638635U CN 2009202824015 U CN2009202824015 U CN 2009202824015U CN 200920282401 U CN200920282401 U CN 200920282401U CN 201638635 U CN201638635 U CN 201638635U
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- CN
- China
- Prior art keywords
- wire connection
- connecting line
- connection cavity
- line cavity
- pressing plate
- 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 - Fee Related
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Abstract
The utility model discloses a connecting line cavity of an explosion-proof dry type transformer, comprising a connecting line cavity, a flange frame welded on the connecting line cavity and a connecting line cavity cover connected with the flange frame through a bolt. A small pressure plate is arranged on the upper surface of the connecting line cavity cover close to the edge; the pressure plate is connected with the connecting line cavity cover through the bolt; a circuit in the connecting line cavity body is connected with a stroke switch which is arranged at the inner side of the flange frame and comprises a button contact; holes are arranged on the connecting line cavity cover corresponding to the button contact; and the pressure plate is provided with a press button which passes through the holes on the connecting line cavity cover and is pressed on the button contact. The connecting line cavity cover can be opened by firstly removing the bolt on the pressure plate, taking out the pressure plate, releasing the button contact by the elasticity per se and opening the stroke switch contact; and a higher-level control circuit is tripped during outage so that the device is under the outage state to achieve the purpose of outage protection. The utility model has simple structure, safety and practicability.
Description
Technical field
The utility model relates to the electic protection technical field, particularly flameproof dry-type transformer wire connection cavity technical field.
Background technology
Flameproof dry-type transformer is applicable to the place of flame proof requirement, methane blended gas and coal dust are particularly arranged and has under the coal mine of explosion hazard.It reaches requirement of explosion by high-intensity casing and effective flame proof faying face.The flameproof dry-type transformer casing is made up of housing and two end caps etc., two end cap outsides are respectively equipped with high-voltage connection chamber and low pressure wire connection cavity, when the flameproof dry-type transformer wire connection cavity designs, wire connection cavity needs to be covered by cover plate, when needing to be serviced or during wiring, the wire connection cavity lid is opened, requirement is outage earlier before opening the chamber lid, in design in the past, just covering and be provided with " forbid charged alarm plate of uncapping " opens the wire connection cavity lid again at wire connection cavity after must cutting off the power supply manually, directly open wire connection cavity lid if forget outage accidentally, then very dangerous, the safety of the person and equipment is constituted a threat to.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned technological deficiency, and a kind of simple in structure, safe flameproof dry-type transformer wire connection cavity is provided.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of flameproof dry-type transformer wire connection cavity, comprise the wiring cavity, be welded on the flange frame on the described wiring cavity, reach with described flange frame and cover by bolted wire connection cavity, described wire connection cavity covers the surface is provided with fritter near the edge pressing plate, described pressing plate is connected by described bolt with the wire connection cavity lid, be connected with travel switch on the circuit in the described wiring cavity, described travel switch is located at described flange frame inboard, described travel switch comprises the button contact, cover with the wire connection cavity of button contact correspondence position and to be provided with the hole, described pressing plate is provided with presses nail, press nail to pass the hole that described wire connection cavity covers, compressing is on described button contact.
Described wire connection cavity covers the surface and is rectangle, and pressing plate is located at described wire connection cavity and covers on the angle on surface.
Described pressure tack welding is connected on the pressing plate, and vertical with described pressing plate.
Travel switch is used for controlling the power on/off of higher level's control circuit.When the utility model is installed, earlier the wire connection cavity lid is connected with bolt with flange frame on being welded on the wiring cavity, the position of pressing plate is installed does not twist bolt earlier, then pressing plate is installed in the corresponding position that wire connection cavity covers, with bolt that flange frame, wire connection cavity lid, pressing plate three is fixedly connected, press nail to pass the hole that described wire connection cavity covers, compressing is connected circuit on described button contact.Want to open the wire connection cavity lid; then dismantle the bolt on the pressing plate earlier; otherwise can't open the wire connection cavity lid; after pulling down the bolt on the pressing plate, take out pressing plate, the button contact is by self elastic force release; open the travel switch contact; higher level's control circuit outage tripping operation makes equipment be in off-position, has reached the power-off protection purpose.Owing to cut off the power supply, turn on remaining bolt again, it then is very safe that the wire connection cavity lid is opened.Because pressing plate is the pressing plate of fritter, the bolt that flange frame, wire connection cavity lid, pressing plate three is fastening together is less, the bolt of turning on fastening wire connection cavity lid remaining behind these clamp flange frames, wire connection cavity lid, pressing plate three's the bolt and flange frame is also more, therefore the sealing of wire connection cavity is also better at this moment, so make circuit be in the fail safe that "on" position does not influence wire connection cavity yet even press this moment nail also to oppress the button contact.Take out pressing plate then, make equipment be in off-position, turn on remaining bolt again, the wire connection cavity lid is opened.So the utility model is simple in structure and safe, practical.
Description of drawings
Fig. 1 is the schematic diagram of an execution mode of the installation site of pressing plate on the utility model on the utility model.
Fig. 2 is the A-A partial sectional view of Fig. 1.
Wherein, 1, pressing plate; 11, press nail; 2, travel switch; 22, button contact; 3, bolt; 4, wire connection cavity lid; 5, flange frame; 6, wiring cavity.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated, as Fig. 1, shown in Figure 2, a kind of flameproof dry-type transformer wire connection cavity, comprise wiring cavity 6, be welded on the flange frame 5 on the described wiring cavity 6, reach the wire connection cavity lid 4 that is connected by bolt 3 with flange frame 5, it is rectangle that wire connection cavity covers 4 upper surfaces, wire connection cavity covers the leg-of-mutton pressing plate 1 of approximate right angle that an angle of 4 upper surfaces is provided with fritter, be respectively equipped with 3 bolts 3 with pressing plate 1 on three angles of pressing plate 1, wire connection cavity lid 4 is connected with flange frame 5, be connected with travel switch 2 on the circuit in the wiring cavity 6, travel switch 2 is located at flange frame 5 inboards, travel switch 2 comprises button contact 22, be provided with the hole with the wire connection cavity lid 4 of button contact 22 correspondence positions, be welded with on the pressing plate 1 and press nail 11, and vertical with pressing plate 1, press and follow closely 11 holes of passing on the described wire connection cavity lid 4, compressing is on described button contact 22.
When the utility model is installed, earlier wire connection cavity lid 4 is connected with flange frame 5 usefulness bolts 3 on being welded on wiring cavity 6, the position of pressing plate 1 is installed does not twist bolt 3 earlier, then pressing plate 1 is installed in the corresponding position on the wire connection cavity lid 4, with bolt 3 with flange frame 5, wire connection cavity lid 4,1 three is fixedly connected for pressing plate, press and follow closely 11 holes of passing on the described wire connection cavity lid 4, compressing is connected circuit on described button contact 22.Want to open wire connection cavity lid 4; then dismantle the bolt 3 on the pressing plate 1 earlier; otherwise can't open wire connection cavity lid 4; after pulling down the bolt 3 on the pressing plate 1, take out pressing plate 1, button contact 22 is by self elastic force release; open travel switch 2 contacts; higher level's control circuit outage tripping operation makes equipment be in off-position, has reached the power-off protection purpose.Owing to cut off the power supply, turn on remaining bolt 3 again, it then is very safe that wire connection cavity lid 4 is opened.
Making process of the present utility model is: press the given size of drawing and make a call to a circular hole on wire connection cavity lid 4, make a triangle pressing plate 1 with steel plate, cover the hole site of 4 inferior horns by wire connection cavity, on three angles of triangle pressing plate 1, bore three holes, press nail 11 with pressing plate 1 plane vertical welding one steel, make the perforate of pressing nail 11 can penetrate wire connection cavity lid 4, in wiring cavity 6, travel switch 2 is screwed in flange frame 5 inboard appropriate locations, after making that pressing plate 1 covers, press nail 11 just the button contact 22 of travel switch 2 to be depressed, the back is installed tests its break-make with universal instrument and whether meet, test successfully after, installation.
For preventing that pressing nail 11 positions and wire connection cavity to cover 4 bore positions has deviation, also can make one earlier not with the pressing plate 1 of pressing nail 11, make separately one and press nail 11 to insert wire connection cavities to cover in 4 the hole, the stroke size according to travel switch 2 fixes travel switch 2 earlier, insert then and press nail 11, after pressing plate 1 is pressed, press nail 11 again the button contact 22 of travel switch 2 to be depressed the purpose that reaches outage, after installing, whether flexible with universal instrument test break-make, install after qualified.
Claims (3)
1. flameproof dry-type transformer wire connection cavity, comprise wiring cavity (6), be welded on the flange frame (5) on the described wiring cavity (6), reach the wire connection cavity lid (4) that is connected by bolt (3) with described flange frame (5), it is characterized in that: described wire connection cavity lid (4) upper surface is provided with the pressing plate (1) of fritter near the edge, described pressing plate (1) is connected by described bolt (3) with wire connection cavity lid (4), be connected with travel switch (2) on the circuit in the described wiring cavity (6), described travel switch (2) is located at described flange frame (5) inboard, described travel switch (2) comprises button contact (22), be provided with the hole with the wire connection cavity lid (4) of button contact (22) correspondence position, described pressing plate (1) is provided with presses nail (11), pressure nail (11) passes the hole on the described wire connection cavity lid (4), and compressing is on described button contact (22).
2. flameproof dry-type transformer wire connection cavity according to claim 1 is characterized in that: described wire connection cavity lid (4) upper surface is a rectangle, and pressing plate (1) is located on the angle of described wire connection cavity lid (4) upper surface.
3. flameproof dry-type transformer wire connection cavity according to claim 1 and 2 is characterized in that: described pressure nail (11) is welded on the pressing plate (1), and vertical with described pressing plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202824015U CN201638635U (en) | 2009-12-18 | 2009-12-18 | Connecting line cavity of explosion-proof dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202824015U CN201638635U (en) | 2009-12-18 | 2009-12-18 | Connecting line cavity of explosion-proof dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201638635U true CN201638635U (en) | 2010-11-17 |
Family
ID=43083140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202824015U Expired - Fee Related CN201638635U (en) | 2009-12-18 | 2009-12-18 | Connecting line cavity of explosion-proof dry type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201638635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269046A (en) * | 2013-06-03 | 2013-08-28 | 天津华宁电子有限公司 | Replaceable explosive-proof wiring cavity |
| CN111146716A (en) * | 2020-02-27 | 2020-05-12 | 淮南市创进电子有限公司 | Mining explosion-proof power box |
-
2009
- 2009-12-18 CN CN2009202824015U patent/CN201638635U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269046A (en) * | 2013-06-03 | 2013-08-28 | 天津华宁电子有限公司 | Replaceable explosive-proof wiring cavity |
| CN111146716A (en) * | 2020-02-27 | 2020-05-12 | 淮南市创进电子有限公司 | Mining explosion-proof power box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20121218 |