CN87205314U - Permanent-magnet explosion-proof and waterproof contact switch - Google Patents
Permanent-magnet explosion-proof and waterproof contact switch Download PDFInfo
- Publication number
- CN87205314U CN87205314U CN 87205314 CN87205314U CN87205314U CN 87205314 U CN87205314 U CN 87205314U CN 87205314 CN87205314 CN 87205314 CN 87205314 U CN87205314 U CN 87205314U CN 87205314 U CN87205314 U CN 87205314U
- Authority
- CN
- China
- Prior art keywords
- waterproof
- explosion proof
- permanent magnet
- proof
- contact switch
- 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.)
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model discloses a permanent magnet explosion proof and waterproof contact switch belonging to a connecter of an electrical apparatus element. The permanent magnet explosion proof and waterproof contact switch mainly adopts the attraction force and the repulsion force between the permanent magnets to drive switching on or switching off a power source, changing the mode of the present general switches sealed by a direct sealing surface. The entire switch without a moving contact surface has high explosion proof and waterproof function, meeting the requirement of chemical industries, coal mines, underwater, and milling working. The utility model has the advantages of simplicity, easy manufacture, and low cost, can be made into a series of explosion proof and waterproof contact switches.
Description
The explosion-proof waterproof contact switch of permanent magnet formula is the connector that belongs to the electrical equipment original paper.
Be used for chemical industry, weaving, colliery, under water, the required appliance switch of powder process operation, possess the performance requirement of explosion-proof waterproof.Present most of flame-proof switch mostly is to carry out explosion-proof waterproof with the form of sealing surface except that vacuum tube in order to satisfy above-mentioned requirements.Because the switch working face is contact-making surface, long-term work, sealing surface wear, rubber takes place aging, as not running check, will have an accident, and brings serious loss to the country and people.
The form that the utility model utilizes the magnetic force of magnet to come indirect starting switch changes the form that switch at present commonly used directly seals by sealing surface, realizes explosion-proof waterproof purpose, prevents owing to the blast danger of accident of the problem of sealing surface.
The explosion-proof waterproof contact switch of permanent magnet formula mainly is to utilize permanent magnet magnetic force to realize opening and closing of circuit.Its major part has: housing, main turn-knob, brake magnet, connecting rod, moving contact, fixed contact, binding post, bottom plate are formed.When main turn-knob rotates, brake magnet has been produced attraction and connected circuit.When main turn-knob rotates again, brake magnet has been produced repulsive force, and shut-off circuit is finished the purpose that opens or closes closed circuit.Connecting rod and brake magnet are fixed together, and moving contact is housed on the connecting rod, and fixed contact is housed on the bottom plate, and the contact-making surface between bottom plate and the housing adds rubber cushion and seals.
The explosion-proof waterproof contact switch of permanent magnet formula is compared with existing switch, and it utilizes the magnetic force of magnet to carry out opening or closing of circuit indirectly.Whole switch all is the sealing of quiet contact-making surface, has changed the form of moving contact-making surface sealing of the switch work of present use.
Description of drawings:
Fig. 1: switch stereogram; Fig. 2: sectional structure chart.
Fig. 2: 1 main turn-knob, 2 housings, 3 static seal dividing plates, 4 brake magnets, 5 fixed contacts, 6 binding posts, 7 moving contacts, 8 housing clamp flanges, 9 seal gaskets, 10 bottom plates, the general sealed wiring mouth of 11 GBs, 12 jump rings, 13 pads.
Embodiment of the present utility model, the explosion-proof waterproof contact switch of permanent magnet formula mainly contains: housing, main turn-knob, brake magnet, connecting rod, moving contact, fixed contact, binding post, sealed wiring mouth, bottom plate are formed.Housing, bottom plate can be used cast aluminium, injection moulding manufacturing.On the main turn-knob permanent magnet is housed, the big I of the size of magnet and magnetic flux is decided according to the contact velocity of switch work.Main turn-knob is fixed on the housing with jump ring.Brake magnet and connecting rod are fixed together, and brake magnet can only move up and down, and can not rotate, and connecting rod is equipped with moving contact, and the other end of connecting rod is contained in the recessed cover on the bottom plate.Fixed contact is fixed on the support plate on the bottom plate, and connection jaws except sealing surface is arranged, adds rubber blanket with national general connection jaws seal standard between bottom plate and the housing during combination, fix with screw at last.
The utility model, simple in structure, easy to process, cost is low, explosion-proof water resistance height.
Claims (1)
1, the explosion-proof waterproof contact switch of a kind of permanent magnet formula is made up of the sealed wiring mouth of housing, bottom plate, national standard, it is characterized in that on the main turn-knob permanent magnet being housed.Brake magnet and connecting rod are fixed together, and moving contact is housed on the connecting rod, and the connecting rod other end is contained in the recessed cover of base plate.Main turn-knob is fixed on the housing with jump ring.Housing and bottom plate contact-making surface add seal gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87205314 CN87205314U (en) | 1987-11-24 | 1987-11-24 | Permanent-magnet explosion-proof and waterproof contact switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87205314 CN87205314U (en) | 1987-11-24 | 1987-11-24 | Permanent-magnet explosion-proof and waterproof contact switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87205314U true CN87205314U (en) | 1988-12-07 |
Family
ID=4821100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87205314 Withdrawn CN87205314U (en) | 1987-11-24 | 1987-11-24 | Permanent-magnet explosion-proof and waterproof contact switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87205314U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872914A (en) * | 2018-09-27 | 2018-11-23 | 国网山东省电力公司泰安供电公司 | A kind of multifunctional DC power supply system check instrument and method of calibration |
| CN110957163A (en) * | 2019-12-18 | 2020-04-03 | 中国船舶重工集团公司七五0试验场 | Amphibian heavy current switch |
| CN108872914B (en) * | 2018-09-27 | 2024-05-31 | 国网山东省电力公司泰安供电公司 | Multifunctional direct-current power supply system calibrator and calibration method |
-
1987
- 1987-11-24 CN CN 87205314 patent/CN87205314U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872914A (en) * | 2018-09-27 | 2018-11-23 | 国网山东省电力公司泰安供电公司 | A kind of multifunctional DC power supply system check instrument and method of calibration |
| CN108872914B (en) * | 2018-09-27 | 2024-05-31 | 国网山东省电力公司泰安供电公司 | Multifunctional direct-current power supply system calibrator and calibration method |
| CN110957163A (en) * | 2019-12-18 | 2020-04-03 | 中国船舶重工集团公司七五0试验场 | Amphibian heavy current switch |
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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 |