CN203250662U - Limit switch - Google Patents
Limit switch Download PDFInfo
- Publication number
- CN203250662U CN203250662U CN 201320311425 CN201320311425U CN203250662U CN 203250662 U CN203250662 U CN 203250662U CN 201320311425 CN201320311425 CN 201320311425 CN 201320311425 U CN201320311425 U CN 201320311425U CN 203250662 U CN203250662 U CN 203250662U
- Authority
- CN
- China
- Prior art keywords
- base
- loam cake
- limit switch
- positioning boss
- main body
- 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 - Lifetime
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- Push-Button Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model discloses a limit switch comprising a housing. The housing is composed of a base and an upper cover, the base is provided with a cavity, and the cavity is provided with a switch body. The upper cover is fixed on the base through screws. Convex positioning bosses are formed at the edge of one end of the base, wherein the end is close to the upper cover. The upper cover is provided with positioning gaps corresponding to positions of the positioning bosses, the positioning bosses are disposed in the positioning gaps, and the upper surfaces of the positioning bosses and the upper surface of the upper cover are on the same plane. The limit switch is advantageous in that holes in the upper cover can be easily aligned with holes in the base, the assembling efficiency is high, the limit switch is of high anti-interference capability and good sealing performance, and the limit switch is convenient to maintain and safe to use.
Description
Technical field
The utility model belongs to field of switches, is specifically related to a kind of limit switch.
Background technology
Limit switch claims again travel switch, is a kind of little electric current master control electrical apparatus commonly used.Utilize the collision of manufacturing machine moving component to make its contact action realize connecting or the disjunction control circuit, reach certain control purpose.Usually, this class switch is used to position or the stroke of limit mechanical motion, make movable machinery by certain position or stroke automatically stop, counter motion, variable motion or automatic back and forth movement etc.In electric control system, the effect of limit switch is the detection that realizes sequential control, positioning control and location status, is used for stroke and the position limitation protection of control plant equipment.
In traditional limit switch, the base that consists of housing is fixedly connected with by screw with loam cake, with base and loam cake assembling the time, need first with base and on position, the hole alignment that covers, then be screwed, because base and on cover corresponding location structure be not set, thereby when the mating holes position, mainly lean on the side of base and the sidewall of loam cake are alignd to finish, and the method is only applicable in base and the loam cake situation of the same size, if base and loam cake are not of uniform size when causing, then can't adopt said method mating holes position, this just causes the efficiency of assembling of base and loam cake lower.
The utility model content
For the deficiency that conventional limit switch exists, the purpose of this utility model provides a kind of limit switch rational in infrastructure, the base of this limit switch and on the position, hole that covers aim at easily, efficiency of assembling is higher.
The technical scheme that realizes the utility model purpose is:
A kind of limit switch comprises housing, and described housing is made of base and loam cake, is provided with inner chamber in the described base, is provided with Switch main body in the described inner chamber; Described base and loam cake are fixed by screw;
Described base forms the positioning boss of projection near the edge of loam cake one end, described loam cake and described positioning boss correspondence position are provided with locating notch, described positioning boss is located in the described locating notch, and the upper surface of described positioning boss and the upper surface of described loam cake are in the same plane.
In the technique scheme, described Switch main body comprises pedestal, and described pedestal is connected with base is dismantled and assembled.
In the technique scheme, described pedestal and base clamping or fix by screw.
In the technique scheme, be provided with diaphragm seal between described loam cake and the base, described diaphragm seal is the laminated structure identical shaped with described loam cake.
In the technique scheme, described base is provided with entrance hole, is provided with waterproof plug in the described entrance hole.
In the technique scheme, the outside of described Switch main body is provided with insulating paper.
The utlity model has positive effect:
(1) in the limit switch of the present utility model, by form the positioning boss of projection near the edge of loam cake one end at described base, be provided with locating notch at described loam cake and described positioning boss correspondence position, when assembling base with loam cake, can cooperate to aim at base and the position, hole that covers by positioning boss and locating notch like this, thereby so that the assembly manipulation of base and loam cake is convenient, Effective Raise the efficiency of assembling of base and loam cake; In addition, the upper surface by described positioning boss is set and the upper surface of described loam cake are in the same plane, like this can be so that the profile of product is more attractive in appearance.
(2) pedestal of the Switch main body in the utility model is connected with base is dismantled and assembled, by adopting this structure, when Switch main body breaks down, Switch main body can be pulled down to its maintenance, if need to change, then only change Switch main body and get final product, and whole limit switch need not be changed.
(3) in the utility model, be provided with diaphragm seal between described loam cake and the base, and described diaphragm seal is set for the laminated structure identical shaped with described loam cake, than using sealing ring, the diaphragm seal of employing said structure can not only improve the sealing property of product, can also strengthen the antijamming capability of product.
(4) in the utility model, by the arranged outside insulating paper at Switch main body, can provide the insulation property of product, use safer.
Description of drawings
Fig. 1 is a kind of structural representation of limit switch in the utility model;
Reference numeral shown in the figure is: the 1-inner chamber; The 11-base; The 12-loam cake; The 13-positioning boss; The 14-locating notch; The 15-entrance hole; The 16-waterproof plug; The 2-Switch main body; The 21-pedestal; The 3-diaphragm seal; The 4-insulating paper.
Embodiment
A kind of embodiment to limit switch of the present utility model elaborates below in conjunction with Figure of description:
A kind of limit switch as shown in Figure 1, comprises housing, and described housing is made of base 11 and loam cake 12, is provided with inner chamber 1 in the described base 11, is provided with Switch main body 2 in the described inner chamber 1; Described base 11 and loam cake 12 are fixed by screw; Described base 11 forms the positioning boss 13 of projection near the edge of loam cake 12 1 ends, described loam cake 12 is provided with locating notch 14 with described positioning boss 13 correspondence positions, described positioning boss 13 is located in the described locating notch 14, and the upper surface of the upper surface of described positioning boss 13 and described loam cake 12 is in the same plane.In the limit switch in the present embodiment, can cooperate to aim at position, hole on base 11 and the loam cake 12 at assembling base 11 by positioning boss 13 and locating notch 14 during with loam cake 12, thereby so that base 11 is convenient with the assembly manipulation of loam cake 12, Effective Raise the efficiency of assembling of base 11 with loam cake 12; In addition, the upper surface by described positioning boss 13 is set and the upper surface of described loam cake 12 are in the same plane, like this can be so that the profile of product is more attractive in appearance.
Described Switch main body 2 in the present embodiment comprises pedestal 21, described pedestal 21 and 11 dismantled and assembled connections of base, by adopting this structure, when Switch main body breaks down, Switch main body can be pulled down to its maintenance, if need to change, then only change Switch main body and get final product, and whole limit switch need not be changed.
In order to realize pedestal 21 and 11 dismantled and assembled connections of base that the described pedestal 21 in the present embodiment is realized with base 11 clampings or by screw is fixing, preferably adopts clamping, can use screw like this, is fixedly connected with also more convenient.
Be provided with diaphragm seal 3 between described loam cake 12 in the present embodiment and the base 11, described diaphragm seal 3 is the laminated structure identical shaped with described loam cake 12, than using sealing ring, the diaphragm seal 3 of employing said structure can not only improve the sealing property of product, can also strengthen the antijamming capability of product.
In the present embodiment, described base 11 is provided with entrance hole 15, is provided with waterproof plug 16 in the described entrance hole 15, can further strengthen the sealing property of product by waterproof plug 16 is set.
In the present embodiment, by the arranged outside insulating paper 4 at described Switch main body 2, can strengthen the insulation property of product, use safer.
Obviously, above-described embodiment of the present utility model only is for the utility model example clearly is described, and is not to be restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (6)
1. a limit switch comprises housing, and described housing is made of base (11) and loam cake (12), is provided with inner chamber (1) in the described base (11), is provided with Switch main body (2) in the described inner chamber (1); Described base (11) and loam cake (12) are fixed by screw;
It is characterized in that: described base (11) forms the positioning boss (13) of projection near the edge of loam cake (12) one ends, described loam cake (12) is provided with locating notch (14) with described positioning boss (13) correspondence position, described positioning boss (13) is located in the described locating notch (14), and the upper surface of the upper surface of described positioning boss (13) and described loam cake (12) is in the same plane.
2. limit switch according to claim 1, it is characterized in that: described Switch main body (2) comprises pedestal (21), described pedestal (21) and dismantled and assembled connection of base (11).
3. limit switch according to claim 2 is characterized in that: described pedestal (21) is fixed with base (11) clamping or by screw.
4. limit switch according to claim 1, it is characterized in that: be provided with diaphragm seal (3) between described loam cake (12) and the base (11), described diaphragm seal (3) is the laminated structure identical shaped with described loam cake (12).
5. limit switch according to claim 1, it is characterized in that: described base (11) is provided with entrance hole (15), is provided with waterproof plug (16) in the described entrance hole (15).
6. each described limit switch in 5 according to claim 1, it is characterized in that: the outside of described Switch main body (2) is provided with insulating paper (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320311425 CN203250662U (en) | 2013-05-31 | 2013-05-31 | Limit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320311425 CN203250662U (en) | 2013-05-31 | 2013-05-31 | Limit switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203250662U true CN203250662U (en) | 2013-10-23 |
Family
ID=49377087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320311425 Expired - Lifetime CN203250662U (en) | 2013-05-31 | 2013-05-31 | Limit switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203250662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280412A (en) * | 2014-07-14 | 2016-01-27 | 进联电子科技(上海)有限公司 | Improved structure of switch device |
-
2013
- 2013-05-31 CN CN 201320311425 patent/CN203250662U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280412A (en) * | 2014-07-14 | 2016-01-27 | 进联电子科技(上海)有限公司 | Improved structure of switch device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |