CN204011110U - Limit switch - Google Patents
Limit switch Download PDFInfo
- Publication number
- CN204011110U CN204011110U CN201420487663.6U CN201420487663U CN204011110U CN 204011110 U CN204011110 U CN 204011110U CN 201420487663 U CN201420487663 U CN 201420487663U CN 204011110 U CN204011110 U CN 204011110U
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- CN
- China
- Prior art keywords
- housing
- fastener
- movable contact
- limit switch
- contact flat
- 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 kind of limit switch, its technical scheme main points are, a kind of limit switch, comprise the Switch main body with inner chamber, in inner chamber, be provided with movable contact flat, two connect the fixed touch plate of external circuit and the switch control piece that is connected with fixed touch plate or disconnects for controlling movable contact flat, between movable contact flat and intracavity bottom, support and establish elastic component, Switch main body comprises the first housing and second housing of mutual fastening, the first housing is provided with elasticity docking section the second housing and is provided with the docking groove fastening with docking section, docking section is fastener, fastener comprises the first fastener, the second fastener, between the first fastener and the second fastener, be provided with V-type deformed area, first, the other end that two fasteners connect the first housing is relatively equipped with the hook-shaped spur of deformed area dorsad.This limit switch has improved the connected mode of the first housing and the second housing, makes it have the advantage of ease of assembly.
Description
Technical field
The utility model relates to a kind of arrangements of electric connection, and more particularly, it relates to a kind of limit switch.
Background technology
Limit switch general structure of the prior art and operation principle are: in switch body, be provided with two fixed contacts that connect external circuit, movable contact and depression bar; Movable contact is bending tablet, and one end is fixedly connected with a contact in two fixed contacts, and the other end is flexibly connected another contact in fixed contact, and depression bar is pressed in the position of arching (as shown in fig. 1) of movable contact.When under object contact when moulded rod, depression bar is to pressing down movable contact, and the contact of controlling movable contact disconnects, and forms short circuit.In the time that object leaves depression bar, the electrical contact of the movable contact being pressed down is discharged, and relies on the elasticity of movable contact self, and electrical contact moves up, until closely connected with fixed contact, realize the object of connecting circuit.The limit switch of this structure, due to long-term working principle, occurs that bottom stage clip fracture or stage clip have not had elastic force sometimes, and often appearance can not be switched on or switched off phenomenon at work.
Declared a kind of press-rod forced-open type limit switch for above-mentioned defect, the patent No. is 2009201535164, comprises Switch main body, fixed contact, movable contact flat and switch control piece; These movable contact flat two ends are respectively provided with a contact, between movable contact flat and switch body intracavity bottom, are provided with spring; Switch main body is made up of two housings of mutually riveting by rivet, therefore very inconvenient in assembling process, need to, with special clincher tool, both riveted joints be got up.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of limit switch, and this limit switch has improved the connected mode between the first housing, the second housing, makes it have advantage easy to assembly.
For achieving the above object, the utility model provides following technical scheme: a kind of limit switch, comprise the Switch main body with inner chamber, in described inner chamber, be provided with movable contact flat, two connect the fixed touch plate of external circuit and the switch control piece that is connected with fixed touch plate or disconnects for controlling movable contact flat, between described movable contact flat and intracavity bottom, support and establish elastic component, described Switch main body comprises the first housing and second housing of mutual fastening, the first described housing is provided with elasticity docking section, the second described housing is provided with the docking groove fastening with docking section, described docking section is fastener, described fastener comprises the first fastener, the second fastener, between the first described fastener and the second fastener, be provided with V-type deformed area, described first, the other end that two fasteners connect the first housing is relatively equipped with the hook-shaped spur of deformed area dorsad.
By adopting technique scheme, the connected mode that the first housing is fastened mutually with the second housing can make this limit switch very convenient needs in the time of assembling with other clincher tools, its first housing and the second housing are connected, and has advantages of simple in structure, easy to assembly.
The utility model is further set to: the two ends of described movable contact flat are respectively provided with a movable contact portion, the other end that described fixed touch plate connects external circuit relatively all forms stationary contact portion, the position bending that described movable contact portion contacts with stationary contact portion is an arc structure, and described dynamic and static tactile portion is with the form contact of line contact.
By adopting technique scheme; improve the contact form of fixed touch plate 3 with movable contact flat 2; movable contact portion 21 is to an arc structure 211 with the position bending contacting with stationary contact portion 31; make the form contact of dynamic and static tactile portion 31 with line contact; effectively protect dynamic and static tactile portion 31; avoid causing the technical problem of the dynamic and static tactile portion 31 of scaling loss to occur, thereby improved control precision, improved the security performance of equipment.
The utility model is further set to: in described housing, be provided with arc extinguishing grid pieces, the position of described arc extinguishing grid pieces is corresponding with stationary contact portion position.
By adopting technique scheme, arc extinguishing grid pieces is set in housing, in the time of movable contact portion and the disengagement of stationary contact portion, can produce electric arc, if and not in time arc suppression so will be caused limit switch is damaged, reduce its useful life, thereby and be provided with arc extinguishing grid pieces just the effect of arc extinguishing timely improve its useful life.
The utility model is further set to: described switch control piece comprises the spring bearer plate of briquetting, " L " shape and the drive link that one end is arranged in inner chamber and is connected with briquetting, the other end of the relative pressing plate of described drive link forms top, described top is connected with spring bearer plate, the bottom surface of briquetting is provided with groove, and described movable contact flat embeds in groove.
The utility model is further set to: described Switch main body surface is provided with detent, and one end of described spring bearer plate is fixed in detent, and one end is unsettled setting in addition, and described free end is positioned at top, drive link top.
By having adopted technique scheme, the bottom surface of briquetting arranges groove, and movable contact flat is embedded in groove, can effectively improve the stability that movable contact flat is connected with groove, makes limit switch work more reliable, further improves control precision; The design of the spring bearer plate of " L " shape, is fixed on one end of spring bearer plate in detent, and the other end is unsettled setting can make limit switch work more reliable.
The utility model is further set to: described elastic component is tower spring, and described intracavity bottom is provided with location hole, and the bottom surface of described briquetting is also provided with reference column, and the large end face of described tower spring is placed in location hole, and small end face is sheathed on reference column.
By adopting technique scheme, elastic component is selected tower spring, and spring large end face is fixed in location hole, and small end face is set on reference column, can make tower spring well locate, and further improves control precision, improves the security performance of equipment.
The relative prior art of the utility model is compared, and has advantages of simple in structure, easy to assembly.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model limit switch embodiment;
Fig. 2 is the explosive view of the utility model limit switch embodiment housing;
Fig. 3 is the structural representation of the utility model limit switch embodiment the second housing
Fig. 4 is the front view of the utility model limit switch embodiment the first housing.
Reference numeral: 1, Switch main body; 11, detent; 12, location hole; 13, the first housing; 131, fastener; 1311, the first fastener; 1312, the second fastener; 14, the second housing; 2, movable contact flat; 21, movable contact portion; 211, arc structure; 3, fixed touch plate; 31, stationary contact portion; 4, switch control piece; 41, briquetting; 411, reference column; 42, spring bearer plate; 43, drive link; 431, top; 5, tower spring; 6, deformed area; 7, hook-shaped spur; 8, docking groove; 9, arc extinguishing grid pieces, 10, thermal insulation board.
Embodiment
Referring to figs. 1 through Fig. 4, the utility model limit switch embodiment is described further.
A kind of limit switch, comprise the Switch main body 1 with inner chamber, in described inner chamber, be provided with movable contact flat 2, two connect the fixed touch plate 3 of external circuit and the switch control piece 4 that is connected or disconnects with fixed touch plate 3 for controlling movable contact flat 2, between described movable contact flat 2 and intracavity bottom, support and establish elastic component, described Switch main body 1 comprises the first housing 13 and second housing 14 of mutual fastening, the first described housing 13 is provided with elasticity docking section, the second described housing 14 is provided with the docking groove 8 fastening with docking section, described docking section is fastener 131, described fastener 131 comprises the first fastener 1311, the second fastener 1312, between the first described fastener 1311 and the second fastener 1312, be provided with V-type deformed area 6, described first, two fasteners 1311, 1312 other ends that relatively connect the first housing 13 are equipped with the hook-shaped spur 7 of deformed area 6 dorsad.
By adopting technique scheme, the connected mode that the first housing 13 is fastened mutually with the second housing 14 can make this limit switch very convenient needs in the time of assembling with other clincher tools, its first housing 13 and the second housing 14 are connected, and has advantages of simple in structure, easy to assembly; And in the time of assembling, only need docking section aligning docking groove 8 just can realize fastening, when needing to take apart again, pin the first fastener 1311 and the second fastener 1312, thereby the hook-shaped spur 7 that makes the first fastener 1311 and the second fastener 1312 and docking groove 8 just depart from the dismounting of the first housing 13 easily and the second housing 14, have advantages of simple in structure, easy to assembly.
The two ends of described movable contact flat 2 are respectively provided with a movable contact portion 21, the other end that described fixed touch plate 3 connects external circuit relatively all forms stationary contact portion 31, the position bending that described movable contact portion 21 contacts with stationary contact portion 31 is an arc structure 211, and described dynamic and static tactile portion 31 is with the form contact of line contact.
By adopting technique scheme; improve the contact form of fixed touch plate 3 with movable contact flat 2; movable contact portion 21 is to an arc structure 211 with the position bending contacting with stationary contact portion 31; make the form contact of dynamic and static tactile portion 31 with line contact; effectively protect dynamic and static tactile portion 31; avoid causing the technical problem of the dynamic and static tactile portion 31 of scaling loss to occur, thereby improved control precision, improved the security performance of equipment.
In described housing, be provided with arc extinguishing grid pieces 9, the position of described arc extinguishing grid pieces 9 is corresponding with stationary contact portion 31 positions.
By adopting technique scheme, arc extinguishing grid pieces 9 is set in housing, in the time that movable contact portion 21 and stationary contact portion 31 throw off, can produce electric arc, if limit switch is damaged and not in time arc suppression so will be caused, reduce its useful life, thereby and be provided with arc extinguishing grid pieces 9 just the effect of arc extinguishing timely improve its useful life, and in arc extinguishing grid pieces 9 bottoms, thermal insulation board 10 being set, the heat that thermal insulation board 10 can well produce electric arc prevent that haptic element 3 from burning.
Described switch control piece 4 comprises the spring bearer plate 42 of briquetting 41, " L " shape and the drive link 43 that one end is arranged in inner chamber and is connected with briquetting 41, the other end of described drive link 43 relative pressing plates forms top 431, described top 431 is connected with spring bearer plate 42, the bottom surface of briquetting 41 is provided with groove, and described movable contact flat 2 embeds in groove.
Described Switch main body 1 surface is provided with detent 11, and one end of described spring bearer plate 42 is fixed in detent 11, and one end is unsettled setting in addition, and described free end is positioned at 431 tops, drive link 43 top.
By having adopted technique scheme, the bottom surface of briquetting 41 arranges groove, and movable contact flat 2 is embedded in groove, can effectively improve the stability that movable contact flat 2 is connected with groove, makes limit switch work more reliable, further improves control precision; The design of the spring bearer plate 42 of " L " shape, is fixed on one end of spring bearer plate 42 in detent 11, and the other end is unsettled setting can make limit switch work more reliable.
Described elastic component is tower spring 5, and described intracavity bottom is provided with location hole 12, and the bottom surface of described briquetting 41 is also provided with reference column 411, and the large end face of described tower spring 5 is placed in location hole 12, and small end face is sheathed on reference column 411.
By adopting technique scheme, elastic component is selected tower spring 5, and spring large end face is fixed in location hole 12, and small end face is set on reference column 411, can make tower spring 5 well locate, and further improves control precision, improves the security performance of equipment.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. a limit switch, comprise the Switch main body with inner chamber, in described inner chamber, be provided with movable contact flat, two connect the fixed touch plate of external circuit and the switch control piece that is connected with fixed touch plate or disconnects for controlling movable contact flat, between described movable contact flat and intracavity bottom, support and establish elastic component, it is characterized in that: described Switch main body comprises the first housing and second housing of mutual fastening, the first described housing is provided with elasticity docking section, the second described housing is provided with the docking groove fastening with docking section, described docking section is fastener, described fastener comprises the first fastener, the second fastener, between the first described fastener and the second fastener, be provided with V-type deformed area, described first, the other end that two fasteners connect the first housing is relatively equipped with the hook-shaped spur of deformed area dorsad.
2. limit switch according to claim 1, it is characterized in that: the two ends of described movable contact flat are respectively provided with a movable contact portion, the other end that described fixed touch plate connects external circuit relatively all forms stationary contact portion, the position bending that described movable contact portion contacts with stationary contact portion is an arc structure, and described dynamic and static tactile portion is with the form contact of line contact.
3. limit switch according to claim 2, is characterized in that: in described housing, be provided with arc extinguishing grid pieces, the position of described arc extinguishing grid pieces is corresponding with stationary contact portion position.
4. limit switch according to claim 2, it is characterized in that: described switch control piece comprises the spring bearer plate of briquetting, " L " shape and the drive link that one end is arranged in inner chamber and is connected with briquetting, the other end of the relative pressing plate of described drive link forms top, described top is connected with spring bearer plate, the bottom surface of briquetting is provided with groove, and described movable contact flat embeds in groove.
5. limit switch according to claim 2, is characterized in that: described Switch main body surface is provided with detent, and one end of described spring bearer plate is fixed in detent, and one end is unsettled setting in addition, and described free end is positioned at top, drive link top.
6. limit switch according to claim 4, is characterized in that: described elastic component is tower spring, and described intracavity bottom is provided with location hole, and the bottom surface of described briquetting is also provided with reference column, and the large end face of described tower spring is placed in location hole, and small end face is sheathed on reference column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420487663.6U CN204011110U (en) | 2014-08-27 | 2014-08-27 | Limit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420487663.6U CN204011110U (en) | 2014-08-27 | 2014-08-27 | Limit switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204011110U true CN204011110U (en) | 2014-12-10 |
Family
ID=52051073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420487663.6U Expired - Fee Related CN204011110U (en) | 2014-08-27 | 2014-08-27 | Limit switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204011110U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110246711A (en) * | 2018-03-09 | 2019-09-17 | 高兰团队公司 | Cam-actuated switch module and its manufacturing method |
| CN117871267A (en) * | 2024-03-12 | 2024-04-12 | 西南交通大学 | Consolidation apparatus and implementation method for non-confined condition |
-
2014
- 2014-08-27 CN CN201420487663.6U patent/CN204011110U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110246711A (en) * | 2018-03-09 | 2019-09-17 | 高兰团队公司 | Cam-actuated switch module and its manufacturing method |
| CN110246711B (en) * | 2018-03-09 | 2023-11-07 | 高兰团队公司 | Cam actuated switch module and method of manufacturing the same |
| CN117871267A (en) * | 2024-03-12 | 2024-04-12 | 西南交通大学 | Consolidation apparatus and implementation method for non-confined condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |