CN2230955Y - Alarm controlling switch for wear limit of friction wafer - Google Patents
Alarm controlling switch for wear limit of friction wafer Download PDFInfo
- Publication number
- CN2230955Y CN2230955Y CN 95230745 CN95230745U CN2230955Y CN 2230955 Y CN2230955 Y CN 2230955Y CN 95230745 CN95230745 CN 95230745 CN 95230745 U CN95230745 U CN 95230745U CN 2230955 Y CN2230955 Y CN 2230955Y
- Authority
- CN
- China
- Prior art keywords
- plug
- contact lever
- metallic contact
- brake
- hole
- 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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- Braking Arrangements (AREA)
Abstract
The utility model relates to an alarm controlling switch for the wear limit of a friction wafer, mainly comprising a a guide sleeve which is fixed on a brake shoe, a plug, a spring and a metallic contact lever; the plug, the spring and the metallic contact lever are arranged in the guide hole of the guide sleeve. The front part of the plug is extended outside the guide hole; the rear part of the plug is clamped in the guide hole. The spring is arranged between the plug and the metallic contact lever. The metallic contact lever which is extended outside a pop-up hole penetrates through a hole which is correspondingly arranged in the brake shoe; the metallic contact lever is inserted into and pressed by the bottom surface of a blind hole which is arranged on a friction wafer. When the friction wafer is worn to the limit, the metallic contact lever is connected with a brake drum, namely, a switch is closed; therewith, the alarm of an alarm is controlled. The utility model has the advantages of timely detection and accurate detection; therefore, the occurrence of an accident due to the damage of the friction wafer can be effectively prevented.
Description
The utility model is a kind of Alarming control switch that detects the wearing piece abrasion limit.
The parts of detent the easiest abrasion in service are wearing pieces, and wearing piece is the vitals that improves braking effect.Thereby in vehicle ', the driver should in time grasp the wear intensity of wearing piece.Normally according to driver's sense organ or make regular check on the wear intensity of observing wearing piece, this observation procedure is not only bothersome but also unreliable, causes brake failure initiation traffic hazard because of observation in time sometimes.
In view of the foregoing, the purpose of this utility model provides a kind of Alarming control switch that can accurately and timely detect the wearing piece abrasion limit.
The purpose of this utility model is to realize like this, it comprises brake-shoe, wearing piece and brake drum, it is characterized in that: a guide pin bushing is connected on brake-shoe, be provided with plug, spring and metal feeler lever in the pilot hole of this guide pin bushing, the front portion of plug stretches out in outside the pilot hole, the rear portion only is stuck in the pilot hole, and spring places between plug and the metal feeler lever, and the metal feeler lever stretches out pilot hole one end and passes the slotting set blind hole bottom surface of wearing piece that is pressed in of the set respective aperture of brake-shoe.When wearing piece wore away the limit, blind hole became through hole, and the metal feeler lever stretches out under spring action and roof pressure (promptly is equivalent to switch closure) on brake drum, and this moment, plug and brake drum were connected, and realized controlling alarm equipment alarm with this.
The utility model has the advantages that the abrasion situation that can effectively monitor wearing piece, than sense organ judge or hand inspection more accurately and timely, and structure is comparatively simple.
Below in conjunction with accompanying drawing the utility model is explained.
Fig. 1 is the utility model structural representation.
Fig. 2 is a touching construction of switch synoptic diagram.
By accompanying drawing as can be known, the utility model mainly is made of brake-shoe 1, wearing piece 2, brake drum 10 and touching switch, wherein touches switch and comprises by screw and be connected in the guide pin bushing 5 on the brake-shoe 1 and place plug 4, spring 6 and metal feeler lever 9 in this guide pin bushing pilot hole.Stretch out outside the pilot hole front portion of plug 4 (thin position), the socket 3 of being convenient to and being connected alarm links to each other, the rear portion of plug 4 only is stuck in the pilot hole, spring 6 places between plug 4 and the metal feeler lever 9, metal feeler lever 9 stretches out pilot hole one end and passes the brake-shoe 1 set respective aperture 7 slotting bottoms that are pressed in blind hole set on the wearing piece 28, metal feeler lever 9 is as the moving contact of switch, brake drum 10 is as the stationary contact of switch, when wearing piece 2 wears away the limit, blind hole 8 mills leak and become through hole, metal feeler lever 9 joins with brake drum 10, it is switch closure, just wearing piece can be worn away limit signal thus and send by alarm, alarm can be selected simple hummer for use, also can select audible-visual annunciator or phonetic alarm for use.
Claims (1)
1, a kind of detent wearing piece abrasion limiting alarm switch that is used for, it comprises brake-shoe, wearing piece and brake drum, it is characterized in that: a guide pin bushing is connected on brake-shoe, be provided with plug, spring and metal feeler lever in the pilot hole of this guide pin bushing, the front portion of plug stretches out in outside the pilot hole, the rear portion only is stuck in the pilot hole, and spring places between plug and the metal feeler lever, and the metal feeler lever stretches out pilot hole one end and passes the slotting set blind hole bottom surface of wearing piece that is pressed in of the set respective aperture of brake-shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230745 CN2230955Y (en) | 1995-04-07 | 1995-04-07 | Alarm controlling switch for wear limit of friction wafer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230745 CN2230955Y (en) | 1995-04-07 | 1995-04-07 | Alarm controlling switch for wear limit of friction wafer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2230955Y true CN2230955Y (en) | 1996-07-10 |
Family
ID=33875515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95230745 Expired - Fee Related CN2230955Y (en) | 1995-04-07 | 1995-04-07 | Alarm controlling switch for wear limit of friction wafer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2230955Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695860A (en) * | 2017-11-07 | 2018-02-16 | 佛山市南海富东机械设备有限公司 | A kind of abrasive disc for polishing marble slabs device |
-
1995
- 1995-04-07 CN CN 95230745 patent/CN2230955Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695860A (en) * | 2017-11-07 | 2018-02-16 | 佛山市南海富东机械设备有限公司 | A kind of abrasive disc for polishing marble slabs device |
| CN107695860B (en) * | 2017-11-07 | 2023-10-20 | 佛山市高明富东机械制造有限公司 | Marble slab polishing millstone device |
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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 |