CN2062112U - Explosion insulated magnetic starter remote control button - Google Patents
Explosion insulated magnetic starter remote control button Download PDFInfo
- Publication number
- CN2062112U CN2062112U CN 89209747 CN89209747U CN2062112U CN 2062112 U CN2062112 U CN 2062112U CN 89209747 CN89209747 CN 89209747 CN 89209747 U CN89209747 U CN 89209747U CN 2062112 U CN2062112 U CN 2062112U
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- China
- Prior art keywords
- button
- explosion
- control button
- utility
- model
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- 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.)
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Abstract
The utility model relates to an explosion insulated magnetic starter remote control button for mine. A dry reed pipe, a permanent magnetism block and a contact element system are installed in the casing of the utility model, wherein, the dry reed pipe and the permanent magnetism block are installed in a pedestal which is made of insulated material, the contact element system is positioned between the dry reed pipe and the permanent magnetism block, and the contact element system can move up and down and is composed of magnetism insulating plates. By using a button, the magnetism insulating plates can move up and down; thereby, the contacts of the dry reed pipe can be attracted with each other or broken, and the circuit can be switched on and switched off. The utility model is used for the essential safety type control circuit. The utility model has the advantages of light weight, good anti-moisture performance and good anti-water performance.
Description
The utility model belongs to electric component, is specially a kind of magnetic starter control button.
The flame proof magnetic starter that use the China's coal-mine down-hole, its control loop operating current big (ampere level) for a long time, ignite fire damp for preventing electric spark, its control button far away all uses explosion-proof button, wherein use maximum as LA81-2 type mine anti-explosion control button, its version is that a movement is arranged in the cast iron casing, movement is made of the contact element that is installed on the ambroin pedestal, this contact element is moving contact and the fixed contact that copper sheet is manufactured, button is connected with moving contact, casing is exposed by perforate in its top, adopts flameproof gap (less than 0.2 millimeter) between button spindle and the casing upper cover hole.The shortcoming of this button is that weight and volume is all bigger, because of flameproof gap is little, is easily blocked by the down-hole dust in the use, and it is quick-fried to form mistake as untimely maintenance, easily causes security incident.Simultaneously because copper contact is exposed in the machine in the air, cause the contact corrosion after the wet gas that impurity such as sulphur, phosphorus, dust are contained in the down-hole is invaded, contact resistance increases, and easily causes Control Failure.In case have water to enter in the movement, also can cause short circuit.
In recent years, along with to underground power supply used safe requirement, the mine explosion-suppression magnetic starter control loop of a kind of operating current very little (microampere order) has appearred, i.e. so-called " essential safe type control loop ".Because its operating current is very little, even produce short-circuit spark, also belong to safe spark, can not cause the fire damp blast, so its control button far away be may not request explosion-proof.Like this, it is unfavorable re-using above-mentioned explosion-proof button with many shortcomings.
The purpose of this utility model is exactly a kind of control button far away that is exclusively used in the essential safe type control loop of design, makes it overcome a series of shortcomings of above-mentioned explosion-proof button.
Key points in design of the present utility model is: the movement in casing comprises a pedestal of being manufactured by insulating material, in this pedestal, be installed with the contact element that constitutes by tongue tube, have a flat duct in the outside near tongue tube, a permanent magnets is installed in the outside in duct, the magnetic isolation plate that is made of permeability magnetic material that device one can slide up and down in this duct in the duct, this magnetic isolation plate is fixedlyed connected with button by the compression spring.
Operating principle of the present utility model is: for start button, select tongue tube open in usual for use, during installation, make that under normal circumstances magnetic isolation plate is between permanent magnets and tongue tube, like this, the magnetic line of force of permanent magnets is got back to another utmost point from a utmost point through magnetic isolation plate and casing, because the buffer action of magnetic isolation plate, make two the metal contacts of the magnetic line of force without tongue tube, thus not adhesive of contact, not conducting of circuit.When need start, press the button, magnetic isolation plate moves down, and leaves the position between tongue tube and the magnetic patch, and the magnetic line of force makes the normally open contact adhesive then by the contact of tongue tube at this moment, and circuit is connected.For stop button, also select tongue tube open in usual, during installation; make under normal circumstances, magnetic isolation plate places the top of position between tongue tube and the permanent magnets, like this under the normal condition; the magnetic line of force makes contact be in attracting state by the contact of tongue tube, when needing to stop; press the button; magnetic isolation plate moves between tongue tube and the magnetic patch down, and magnetic circuit is isolated, and tongue tube recovers often to open; outage is shut down.
Tongue tube after the wiring, after mixing up with the relative position of magnetic isolation plate, available insulating resin is solidificated in the base body.
The control button far away that the utility model provides adopts the cast iron casing, weight has only one kilogram, is 1/7th of explosion-proof button, and volume has only 1/3rd of explosion-proof button, so the probability that is damaged by other object strikes in the down-hole reduces, the corresponding accident of power supply that takes place thus that also reduces; Because the metal contact in the tongue tube is embedded in the glass tube, glass tube again by resin solidification in base body, so the moistureproof and waterproof performance is good, no matter how abominable surrounding environment is, also contact corrosion and short circuit can not take place, safety action is reliably sensitive.
Accompanying drawing is depicted as an embodiment of the present utility model.Wherein Fig. 1 is its front section view, and Fig. 2 is its vertical view (half one has removed the broken section behind cover plate, tongue tube, start button and the magnetic isolation plate), and Fig. 3 is its side sectional view.
In conjunction with Fig. 1-Fig. 3; casing 1 that should control button far away is manufactured by cast iron; its positive front has wiring hole; be fixed with separate terminal enclosure 13 by bolt 17 outside the hole; the top is fixed with upper cover plate 6 by bolt 7; plastic base 4 is housed in the casing; in this pedestal, have the duct of two groups of symmetries; tongue tube 11 open in usual is equipped with in two circular ducts 18 that wherein are arranged in the inside respectively; be solidificated in the hole with resin 5 after the wiring; be arranged in the duct 2 of two flat front and round rear of outside; the cutter shape magnetic isolation plate of being manufactured by steel 8 moving up and down is arranged respectively; the shank of this magnetic isolation plate is threaded with button 9 usefulness; be with compression spring 10 on the handle; upper cover plate is exposed by perforate in the button top; the position of the corresponding tongue tube perforate permanent magnets 3 of packing into respectively one on the other on two sides of pedestal; be equipped with binding post 16 on the base front wall; the division board 12 that the pedestal center fixation has steel disc to make; avoid starting and stopping contact element influencing each other; the outlet of separate terminal enclosure has rubber seal 15 sealings therebetween with the protection cable jacket 14 that has been threaded.
Claims (3)
1, a kind of mine explosion-suppression magnetic starter is far controlled button, by casing (1), being contained in the button (9) that exposes casing by perforate in interior movement of casing and top forms, it is characterized in that, said movement comprises a pedestal of being manufactured by insulating material (4), in this support, be installed with tongue tube (11), have a flat duct (2) in the outside near tongue tube, a permanent magnets (3) is installed in the outside in this duct, adorn a magnetic isolation plate of being manufactured by permeability magnetic material (8) that can slide up and down in this duct in the duct, this magnetic isolation plate is fixedlyed connected with button (9) by compression spring (10).
2,, it is characterized in that said pedestal (4) manufactured by plastics as the said control button far away of claim 1.
3,, it is characterized in that said magnetic isolation plate (8) manufactured by steel as the said control button far away of claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 89209747 CN2062112U (en) | 1989-11-24 | 1989-11-24 | Explosion insulated magnetic starter remote control button |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 89209747 CN2062112U (en) | 1989-11-24 | 1989-11-24 | Explosion insulated magnetic starter remote control button |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2062112U true CN2062112U (en) | 1990-09-12 |
Family
ID=4866257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 89209747 Withdrawn CN2062112U (en) | 1989-11-24 | 1989-11-24 | Explosion insulated magnetic starter remote control button |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2062112U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100416250C (en) * | 2004-12-29 | 2008-09-03 | 上海自动化仪表股份有限公司 | Miniaturized intelligent differential pressure / pressure transmitter |
CN114694513A (en) * | 2020-12-30 | 2022-07-01 | 乐金显示有限公司 | Display device |
-
1989
- 1989-11-24 CN CN 89209747 patent/CN2062112U/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100416250C (en) * | 2004-12-29 | 2008-09-03 | 上海自动化仪表股份有限公司 | Miniaturized intelligent differential pressure / pressure transmitter |
CN114694513A (en) * | 2020-12-30 | 2022-07-01 | 乐金显示有限公司 | Display device |
CN114694513B (en) * | 2020-12-30 | 2024-04-19 | 乐金显示有限公司 | Display device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |