CN200953317Y - Normally closed antiexplosive magnetic switch - Google Patents
Normally closed antiexplosive magnetic switch Download PDFInfo
- Publication number
- CN200953317Y CN200953317Y CN 200620044111 CN200620044111U CN200953317Y CN 200953317 Y CN200953317 Y CN 200953317Y CN 200620044111 CN200620044111 CN 200620044111 CN 200620044111 U CN200620044111 U CN 200620044111U CN 200953317 Y CN200953317 Y CN 200953317Y
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- China
- Prior art keywords
- explosion
- moulding
- shell
- magnetic switch
- elastic sheet
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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.)
- Expired - Fee Related
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- Switch Cases, Indication, And Locking (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The utility model relates to a normal closed flame-proof magnetic switch, which comprises two pieces of elastic sheet metal in a plastic shell sealing chamber filled with high-purity nitrogen. Wherein, the two pieces of elastic sheet metal are respectively connected with a down-lead terminal at both ends of the plastic shell. The two pieces of elastic sheet metal are closed. In addition, an auxiliary iron sheet without output end is arranged in the plastic shell. One head end of the auxiliary iron sheet is positioned at one end of the plastic shell to make the auxiliary iron sheet and an elastic metal sheet fixed at the same end of the plastic shell in parallel and ensures effective distance. The utility model provides more convenience for its users to consider selecting flame-proof magnetic switch and has the advantages of rational structure, easy operation, high operating safety and applicability and usability to mines or similar environmental areas.
Description
Technical field
The utility model relates to a kind of explosion-proof magnetic switch, the explosion-proof magnetic switch of particularly a kind of closed type.
Background technology
In the prior art, the explosion-proof magnetic switch of a kind of open type is arranged, be commonly called as tongue tube, structure as shown in Figure 1, its structure is that two elasticity iron plates are placed in and are full of moulding in the shell enclosed cavity and the spacing of remaining valid of high pure nitrogen, and is connected and fixed on the lead end of moulding the shell two ends respectively.Moulding shell is the ABS plastic shell, and switch is completely enclosed within the nitrogen atmosphere, can not have the naked light flower to contact with extraneous, uses in the colliery, can play the effect of firing and explosion prevention.But, if in the colliery carrying magnetic instrument or other materials are arranged,, make it produce action near switch as coal shovel, chisel, iron ore stone etc., then will cause security incident.Also do not have the explosion-proof magnetic switch of closed type in the prior art, be not easy to the many-sided consideration of end user and select to use.
The utility model content
The purpose of this utility model is to provide a kind of closed type explosion-proof magnetic switch, selects explosion-proof magnetic switch for use for the many-sided consideration of end user.
Second purpose of the present utility model is to provide through isolation and the safer explosion-proof magnetic switch of closed type, i.e. the explosion-proof magnetic normally closed switch of isolated form is adapted to colliery and other zone similarities and uses and still can guarantee safety.
In order to achieve the above object, the utility model adopts following technical proposals:
The explosion-proof magnetic switch of a kind of closed type comprises that two elastic sheet metals are placed in one and are full of moulding in the shell enclosed cavity and being connected and fixed on the lead end of moulding the shell two ends respectively of high pure nitrogen, it is characterized in that two elastic sheet metal closures; Mould the auxiliary iron plate that also has a slice no-output end in the shell, its broken end is fixed in an end of moulding shell, makes that auxiliary iron plate is parallel with a slice elastic sheet metal is fixed in the same end of moulding shell side by side, and the spacing of remaining valid.
Above-mentioned to be fixed in the elastic sheet metal of moulding the same end of shell with auxiliary iron plate be no remanent magnetism elasticity iron plate, and another sheet elastic sheet metal is a phosphorus beryllium copper sheet.
Above-mentioned to be fixed in the elastic sheet metal of moulding the same end of shell with auxiliary iron plate be no remanent magnetism high strength iron plate, and another sheet elastic sheet metal is a phosphorus beryllium copper sheet, and auxiliary iron plate be no remanent magnetism high strength iron plate, formation closed type explosion-proof strong-magnetic switch.
The above-mentioned shell of moulding is placed in the sealed plastic box with effective physical dimension, two lead ends connect the explosion-proof wiring post at sealed plastic box two ends respectively, the explosion-proof magnetic normally closed switch of closed isolated form of two elastic sheet metals of a magnet button perpendicular alignmnet of fixed installation on the sealed plastic box.
The structure of above-mentioned magnet button is: mould lid with the sealed plastic box screw thread spins for one, revolve by screw thread and to join a plastics capsule, the end, settle a copper to press bullet to a magnet elastic bearing in the plastics capsule, magnet is fixedlyed connected with a button (17) and is integral, button stretches out from the centre bore of moulding lid, is moulding lid and sealed plastic outer box wall pressing place and all is being lined with sealing ring with pressing place of plastics capsule openend.
Above-mentioned explosion-proof wiring post is by copper sleeve and the fixed seal connection of sealed plastic box two ends.
The utility model compared with prior art, have following conspicuous substantive distinguishing features and advantage: the utility model has been made remodeling to the explosion-proof magnetic switch of existing open type, promptly in moulding shell, increased auxiliary iron plate, former two elasticity iron plates are initially in closure state, then constitute the explosion-proof magnetic switch of closed type, available people is many-sided to be considered to select to use.The utility model again can a sealed plastic box outside moulding shell, and settles a magnet button thereon, then uses safer, more convenient.The utility model is rational in infrastructure, and is easy to operate, is suitable for the colliery or the like environment zone is promoted the use of.
Description of drawings
Fig. 1 is the structural representation of the explosion-proof magnetic switch of open type of prior art.
The structural representation of an embodiment of Fig. 2 the utility model.
Fig. 3 is the structural representation of another embodiment of the utility model.
Fig. 4 is partial enlarged drawing C, D, the E of Fig. 3.
Embodiment
Below in conjunction with accompanying drawing embodiment is elaborated:
Embodiment one: referring to Fig. 2, the explosion-proof magnetic switch of this closed type includes two elastic sheet metals 2,5 and is placed in one and is full of moulding in shell 3 enclosed cavities and being connected and fixed on 1,4, two elastic sheet metal 2,5 closures of lead end of moulding shell 3 two ends respectively of high pure nitrogen 6; Mould the auxiliary iron plates 8 that also have a slice no-output end in the shell 3, its broken end 7 is fixed in an end of moulding shell 3, makes that auxiliary iron plate 8 and a slice elastic sheet metal 2 are parallel to be fixed in the same end of moulding shell 3 side by side, and the space D of remaining valid.Above-mentioned be fixed in the elastic sheet metal 2 of moulding shell 3 same ends with auxiliary iron plate 8 and be no remanent magnetism elasticity iron plate, another sheet elastic sheet metal 5 is a phosphorus beryllium copper sheet.
Embodiment two: present embodiment is identical with embodiment one basically, institute's difference is: above-mentioned be fixed in the elastic sheet metal 2 of moulding shell 3 same ends with auxiliary iron plate 8 and be no remanent magnetism high strength iron plate, another sheet elastic sheet metal 5 is a phosphorus beryllium copper sheet, auxiliary iron plate 8 is no remanent magnetism high strength iron plate, constitutes closed type explosion-proof strong-magnetic switch.
Embodiment three: referring to Fig. 3, present embodiment and embodiment one are identical and increase following member and structure thereof: the above-mentioned shell 3 of moulding is placed in the sealed plastic box 9 with effective physical dimension, two lead ends 1,4 connect the explosion-proof wiring post 11 at sealed plastic box 9 two ends respectively, magnet button 12 of fixed installation on the sealed plastic box 9, two elastic sheet metals of its perpendicular alignmnet 2,5, the closed explosion-proof magnetic normally closed switch of isolated form.Constitute the explosion-proof magnetic normally closed switch of isolated form.
Embodiment four: present embodiment is identical with embodiment three basically, institute's difference is: above-mentioned auxiliary iron plate 8 is fixed in the elastic sheet metal 2 of moulding shell 3 same ends and is no remanent magnetism high strength iron plate, another sheet elastic sheet metal 5 is a phosphorus beryllium copper sheet, auxiliary iron plate 8 is no remanent magnetism high strength iron plate, constitutes closed type explosion-proof strong-magnetic switch.Then constitute isolated form explosion-proof strong-magnetic normally closed switch.
Claims (6)
1. explosion-proof magnetic switch of closed type, comprise that two elastic sheet metals (2,5) are placed in one and are full of moulding in shell (3) enclosed cavity and being connected and fixed on the lead end (1,4) of moulding shell (3) two ends respectively of high pure nitrogen (6), it is characterized in that two elastic sheet metals (2,5) closure; Mould the auxiliary iron plate (8) that also has a slice no-output end in the shell (3), its broken end (7) is fixed in an end of moulding shell (3), makes that auxiliary iron plate (8) is parallel with a slice elastic sheet metal (2) to be fixed in the same end of moulding shell (3) side by side, and the spacing of remaining valid (D).
2. the explosion-proof magnetic switch of closed type according to claim 1 is characterized in that it is no remanent magnetism elasticity iron plate that described and auxiliary iron plate (8) is fixed in the elastic sheet metal (2) of moulding the same end of shell (3), and another sheet elastic sheet metal (5) is a phosphorus beryllium copper sheet.
3. the explosion-proof magnetic switch of closed type according to claim 1, it is characterized in that it is no remanent magnetism high strength iron plate that described and auxiliary iron plate (8) is fixed in the elastic sheet metal (2) of moulding the same end of shell (3), another sheet elastic sheet metal (5) is a phosphorus beryllium copper sheet, auxiliary iron plate (8) is no remanent magnetism high strength iron plate, constitutes closed type explosion-proof strong-magnetic switch.
4. according to claim 1 or the explosion-proof magnetic switch of 2 or 3 described closed types, it is characterized in that the described shell (3) of moulding is placed in the sealed plastic box (9) with effective physical dimension, two lead ends (1,4) connect the explosion-proof wiring post (11) at sealed plastic box (9) two ends respectively, sealed plastic box (9) is gone up a fixed installation magnet button (12), two elastic sheet metals of its perpendicular alignmnet (2,5), the closed explosion-proof magnetic normally closed switch of isolated form.
5. the explosion-proof magnetic switch of closed type according to claim 4, the structure that it is characterized in that described magnet button (12) is: mould lid (15) with sealed plastic box (9) screw thread spins for one, revolve by screw thread and to join a plastics capsule (13), the interior end of plastics capsule (13), settle a copper pressing spring (18) to a magnet (14) elastic bearing, magnet (14) is fixedlyed connected with a button (17) and is integral, button (17) stretches out from the centre bore of moulding lid (15), is moulding lid (15) and sealed plastic box (9) outer wall pressing place and all is being lined with sealing ring (16) with plastics capsule (13) openend pressing place.
6. the explosion-proof magnetic switch of closed type according to claim 4 is characterized in that described explosion-proof wiring post (11) is by copper sleeve (10) and sealed plastic box (9) two ends fixed seal connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044111 CN200953317Y (en) | 2006-07-21 | 2006-07-21 | Normally closed antiexplosive magnetic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044111 CN200953317Y (en) | 2006-07-21 | 2006-07-21 | Normally closed antiexplosive magnetic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953317Y true CN200953317Y (en) | 2007-09-26 |
Family
ID=38811620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044111 Expired - Fee Related CN200953317Y (en) | 2006-07-21 | 2006-07-21 | Normally closed antiexplosive magnetic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200953317Y (en) |
-
2006
- 2006-07-21 CN CN 200620044111 patent/CN200953317Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |