CN103016675A - Electronic differential lock sensor - Google Patents
Electronic differential lock sensor Download PDFInfo
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- CN103016675A CN103016675A CN2012105200804A CN201210520080A CN103016675A CN 103016675 A CN103016675 A CN 103016675A CN 2012105200804 A CN2012105200804 A CN 2012105200804A CN 201210520080 A CN201210520080 A CN 201210520080A CN 103016675 A CN103016675 A CN 103016675A
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- cylinder
- differential lock
- contact pin
- piston
- lock sensor
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Abstract
The invention discloses an electronic differential lock sensor, which comprises a pressure detection mechanism and a piston mechanism, wherein the pressure detection mechanism is connected onto the cylinder wall of an air cylinder, and the piston mechanism is arranged in the cylinder body of the air cylinder and is matched with the pressure detection mechanism. The pressure detection mechanism comprises a connecting piece and a plug, wherein a cavity is arranged in the connecting piece and one end of the connecting piece is provided with an opening, and the plug is connected at the opening of the connecting piece in a clamped way. The connecting piece is connected onto the cylinder wall of the air cylinder. The plug consists of a plug shell and pins which are arranged in the plug shell. The number of the pins is three. The pins sequentially consist of a first pin, a second pin and a third pin. The first pin is connected with the second pin. A normally-closed reed switch is arranged in the cavity in the connecting piece. The piston mechanism comprises a piston and a magnet, wherein the piston is matched with the internal space of the cylinder body of the air cylinder and the magnet is connected onto the piston along a direction towards the normally-closed reed spring. The electronic differential lock sensor has the advantages of simple structure, reasonable design, convenience in use and operation, low fault rate, long service life, high stability, high practicability, good using effect and convenience in popularization and use.
Description
Technical field
The present invention relates to a kind of differential lock sensor, especially relate to a kind of electronic type differential lock sensor.
Background technique
In the prior art, the differential lock sensor that uses on the automobile bridge differential lock is mechanical sensor, has following defective and deficiency:
1) mechanical sensor is mechanical owing to what adopt, therefore can not shorten the length of differential lock sensor, so that the differential lock sensor has arrived the side of transmission shaft, cause the differential lock sensor almost parallel with transmission shaft, in installation and using process, be vulnerable to the impact of extraneous factor, for example, carrying is installed deposits in the process, the plastic interface of differential lock sensor lands easily, causes fracture; In the using process, the easy impact switch of the foreign material of taking out of in the transmission shaft rotation process, it is disconnected to cause plastic interface spare to bump; Bumping now disconnected rate is 2.5%;
2) mechanical sensor is subjected to spring and push rod quality problems because adopting spring and push rod principle, the personal factor impacts such as extraneous installations, extruding often, easily cause the differential tutorial light glittering with the Its Failures such as Chang Liang;
3) mechanical sensor adopts seal ring and rubber to intercept circle owing to be in normally off for a long time, and easily the not controlled impact of or rubber material aging because of seal ring causes the switch sealing to reduce, and return is not in place, malfunctioning switch, and shorten working life;
4) because the mechanical speed difference lock sensor adopts spring and push rod principle, when air inlet, gas can enter into the differential lock sensor internal, causes spring to get rusty, the differential lock faulty sensor; In addition, after fracture, also can leak gas, cause automobile pressure to leak, affect its brake system, bring potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, and a kind of electronic type differential lock sensor is provided, and it is simple in structure, and is reasonable in design, use simple operation, failure rate is low, long service life, good stability, practical, using effect is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of electronic type differential lock sensor, it is characterized in that: comprise the pressure detection mechanism that is connected on the cylinder casing wall and be arranged in the cylinder block and the piston mechanism that matches with described pressure detection mechanism, described pressure detection mechanism comprises that inside is provided with the link of cavity and an end opening and engagement connection at the plug at described link aperture position place, described link is connected on the described cylinder casing wall, described plug is made of plug body and the contact pin that is arranged in the described plug body, the quantity of described contact pin is three and is respectively the first contact pin, the second contact pin and the 3rd contact pin, described the first contact pin and the second contact pin join, be provided with normally closed dry reed-pipe in the internal cavities of described link, one end of described normally closed dry reed-pipe joins with described the first contact pin and the second contact pin, and the other end of described normally closed dry reed-pipe and described the 3rd contact pin join; Described piston mechanism comprises the piston that matches with described cylinder block inner space and is connected to magnet on the described piston towards described normally closed dry reed-pipe.
Above-mentioned electronic type differential lock sensor is characterized in that: described link is threaded on the described cylinder casing wall, and is provided with tapped hole on the described cylinder casing wall, is provided with the outside thread that matches with internal thread in the described tapped hole on the described link.
Above-mentioned electronic type differential lock sensor is characterized in that: be provided with gasket seal between described link and the described cylinder casing wall.
Above-mentioned electronic type differential lock sensor is characterized in that: comprise being provided with high temperature resistant packing material between the inwall of described dry reed-pipe protecting jacket and described link for the dry reed-pipe protecting jacket that normally closed dry reed-pipe is closed.
Above-mentioned electronic type differential lock sensor is characterized in that: described piston mechanism comprises the seal ring that is arranged between described piston and the described cylinder block inwall, and is provided with on the described piston be used to the first groove of placing described seal ring.
Above-mentioned electronic type differential lock sensor, it is characterized in that: being shaped as of described magnet is circular, and is provided with on the described piston be used to the second groove that connects described magnet.
Above-mentioned electronic type differential lock sensor is characterized in that: described link is the copper one-tenth of 59-1 by model.
Above-mentioned electronic type differential lock sensor, it is characterized in that: described plug body is made by nylon, and described contact pin is become by the copper of electroplate.
Above-mentioned electronic type differential lock sensor is characterized in that: described piston is made by No. 45 steel, and described magnet is the 35UH magnet of chrome-faced and anti-150 ℃ of high temperature.
Above-mentioned electronic type differential lock sensor is characterized in that: described dry reed-pipe protecting jacket is made of plastics, and described high temperature resistant packing material is 905 silica gel packing materials of anti-150 ℃ of high temperature.
The present invention compared with prior art has the following advantages:
1, the present invention is simple in structure, and is reasonable in design, and it is convenient to realize.
2, use simple operation of the present invention, differential lock sensor total length for 30 millimeters, has effectively reduced artificial damaged in collision rate by 46 millimeters original shortenings.
3, the present invention has adopted electronic sensor, cancelled the direct point of contact of former mechanical speed difference lock sensor and piston, need not to consider the push rod quality problems, electronic sensor has adopted electronic original part and high-density and high-temperature-resistant packing material and the disposable encapsulation of shell to finish, waterproof, shockproof, anti-gas-leak have effectively been controlled (in the situation of working of plastics damage, the differential mechanism cylinder can not leak gas yet), the use of electronic original part, will be much higher than mechanical working life.
4, the present invention is easy to output, and disposable detection up-to-standard rate is high, and good stability has avoided current supplier after detecting the qualified supply of material, occurs again the malfunctioning problem of product during the bridge general assembly.
5, of the present invention practical, using effect is good, is convenient to promote the use of.
In sum, the present invention is simple in structure, and is reasonable in design, uses simple operation, failure rate is low, and long service life, good stability, practical, using effect is good, is convenient to promote the use of.
Below by drawings and Examples, technological scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the annexation schematic representation of plug of the present invention, link and normally closed dry reed-pipe.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the sectional view of piston of the present invention.
Fig. 5 is the right elevation of Fig. 4.
Fig. 6 is that the first of the present invention is used view.
Fig. 7 is that the second of the present invention uses view.
Description of reference numerals:
1-1-plug body; 1-2-first contact pin; 1-3-second contact pin;
1-4-the 3rd contact pin; 2-link; 3-normally closed dry reed-pipe;
5-cylinder; 5-1-tapped hole; 5-2-pneumatic interface;
6-1-piston; 6-11-first groove; 6-12-second groove;
6-2-magnet; 6-3-seal ring; 7-gasket seal;
8-dry reed-pipe protecting jacket; 9-high temperature resistant packing material.
Embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, the present invention includes the pressure detection mechanism that is connected on cylinder 5 casing walls and be arranged in cylinder 5 cylinder bodies and the piston mechanism that matches with described pressure detection mechanism, described pressure detection mechanism comprises that inside is provided with the link 2 of cavity and an end opening and engagement connection at the plug at described link 2 aperture position places, described link 2 is connected on described cylinder 5 casing walls, described plug is made of with the contact pin that is arranged among the described plug body 1-1 plug body 1-1, the quantity of described contact pin is three and is respectively the first contact pin 1-2, the second contact pin 1-3 and the 3rd contact pin 1-4, described the first contact pin 1-2 and the second contact pin 1-3 join, be provided with normally closed dry reed-pipe 3 in the internal cavities of described link 2, one end of described normally closed dry reed-pipe 3 joins with described the first contact pin 1-2 and the second contact pin 1-3, and the other end of described normally closed dry reed-pipe 3 and described the 3rd contact pin 1-4 join; Described piston mechanism comprises the piston 6-1 that matches with described cylinder 5 cylinder interior spaces and is connected to magnet 6-2 on the described piston 6-1 towards described normally closed dry reed-pipe 3.
In the present embodiment, described link 2 is threaded on described cylinder 5 casing walls, and is provided with tapped hole 5-1 on described cylinder 5 casing walls, is provided with the outside thread 2-1 that matches with internal thread in the described tapped hole 5-1 on the described link 2.Be provided with gasket seal 7 between described link 2 and described cylinder 5 casing walls.The present invention also comprises the dry reed-pipe protecting jacket 8 that is closed for normally closed dry reed-pipe 3, is provided with high temperature resistant packing material 9 between the inwall of described dry reed-pipe protecting jacket 8 and described link 2.
In conjunction with Fig. 4 and Fig. 5, in the present embodiment, described piston mechanism comprises the seal ring 6-3 that is arranged between described piston 6-1 and described cylinder 5 inboard wall of cylinder block, and is provided with on the described piston 6-1 be used to the first groove 6-11 that places described seal ring 6-3.Being shaped as of described magnet 6-2 is circular, and is provided with on the described piston 6-1 be used to the second groove 6-12 that connects described magnet 6-2.
In the present embodiment, described link 2 is the copper one-tenth of 59-1 by model.Described plug body 1-1 is made by nylon, and described contact pin is become by the copper of electroplate.Described piston 6-1 is made by No. 45 steel, and described magnet 6-2 is the 35UH magnet of chrome-faced and anti-150 ℃ of high temperature.Described dry reed-pipe protecting jacket 8 is made of plastics, and described high temperature resistant packing material 9 is 905 silica gel packing materials of anti-150 ℃ of high temperature.
Working principle of the present invention and working procedure are: as shown in Figure 6, when the differential mechanism switch cuts out, gas circuit is closed, there is not gas from pneumatic interface 5-2, to enter in cylinder 5 cylinder bodies, piston mechanism is in that (general distance is 5～7mm) in the reality near the position of pressure detection mechanism, the magnetic signal that normally closed dry reed-pipe 3 is sensed magnet 6-2 is opened, and the differential tutorial light that is used to indicate the differential mechanism working state does not work, and differential mechanism is not worked.As shown in Figure 7, when the differential mechanism switch opens, the gas circuit ventilation, have gas to enter from pneumatic interface 5-2 in cylinder 5 cylinder bodies, pushing piston mechanism is to the direction motion away from pressure detection mechanism, and piston mechanism is in the position (general distance is about 10mm in the reality) away from pressure detection mechanism, normally closed dry reed-pipe 3 inductions are less than the magnetic signal of magnet 6-2, be in normally off, the differential tutorial light is lighted, and automobile begins differential work.
In sum, non-contact work of the present invention, good waterproof performance, (automobile can normally travel in the situation that this differential lock sensor damages to have stopped gas leak phenomenon, do not affect safety problem), improve a lot of times working life, reached 1,000,000 times (prior art 100,000 times) shorten length of this differential lock sensor own, greatly reduce the problem of colliding with, and being easy to output, disposable detection up-to-standard rate is high, good stability.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (10)
1. electronic type differential lock sensor, it is characterized in that: comprise the pressure detection mechanism that is connected on cylinder (5) casing wall and be arranged in cylinder (5) cylinder body and the piston mechanism that matches with described pressure detection mechanism, described pressure detection mechanism comprises that inside is provided with the link of cavity and an end opening (2) and engagement connection at the plug at described link (2) aperture position place, described link (2) is connected on described cylinder (5) casing wall, described plug is made of plug body (1-1) and the contact pin that is arranged in the described plug body (1-1), the quantity of described contact pin is three and is respectively the first contact pin (1-2), the second contact pin (1-3) and the 3rd contact pin (1-4), described the first contact pin (1-2) joins with the second contact pin (1-3), be provided with normally closed dry reed-pipe (3) in the internal cavities of described link (2), one end of described normally closed dry reed-pipe (3) joins with described the first contact pin (1-2) and the second contact pin (1-3), and the other end of described normally closed dry reed-pipe (3) and described the 3rd contact pin (1-4) join; Described piston mechanism comprises the piston (6-1) that matches with described cylinder (5) cylinder interior space and is connected to magnet (6-2) on the described piston (6-1) towards described normally closed dry reed-pipe (3).
2. according to electronic type differential lock sensor claimed in claim 1, it is characterized in that: described link (2) is threaded on described cylinder (5) casing wall, and be provided with tapped hole (5-1) on described cylinder (5) casing wall, be provided with on the described link (2) with described tapped hole (5-1) in the outside thread (2-1) that matches of internal thread.
3. according to claim 1 or 2 described electronic type differential lock sensors, it is characterized in that: be provided with gasket seal (7) between described link (2) and described cylinder (5) casing wall.
4. according to electronic type differential lock sensor claimed in claim 1; it is characterized in that: comprise being provided with high temperature resistant packing material (9) for the dry reed-pipe protecting jacket (8) that normally closed dry reed-pipe (3) is closed between the inwall of described dry reed-pipe protecting jacket (8) and described link (2).
5. according to electronic type differential lock sensor claimed in claim 1, it is characterized in that: described piston mechanism comprises the seal ring (6-3) that is arranged between described piston (6-1) and described cylinder (5) inboard wall of cylinder block, and is provided with on the described piston (6-1) be used to the first groove (6-11) of placing described seal ring (6-3).
6. according to electronic type differential lock sensor claimed in claim 1, it is characterized in that: being shaped as of described magnet (6-2) is circular, and is provided with on the described piston (6-1) be used to the second groove (6-12) that connects described magnet (6-2).
7. according to electronic type differential lock sensor claimed in claim 1, it is characterized in that: described link (2) is the copper one-tenth of 59-1 by model.
8. according to electronic type differential lock sensor claimed in claim 1, it is characterized in that: described plug body (1-1) is made by nylon, and described contact pin is become by the copper of electroplate.
9. according to electronic type differential lock sensor claimed in claim 1, it is characterized in that: described piston (6-1) is made by No. 45 steel, and described magnet (6-2) is the 35UH magnet of chrome-faced and anti-150 ℃ of high temperature.
10. according to electronic type differential lock sensor claimed in claim 4, it is characterized in that: described dry reed-pipe protecting jacket (8) is made of plastics, and described high temperature resistant packing material (9) is 905 silica gel packing materials of anti-150 ℃ of high temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210520080.4A CN103016675B (en) | 2012-12-01 | 2012-12-01 | Electronic differential lock sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210520080.4A CN103016675B (en) | 2012-12-01 | 2012-12-01 | Electronic differential lock sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016675A true CN103016675A (en) | 2013-04-03 |
| CN103016675B CN103016675B (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210520080.4A Expired - Fee Related CN103016675B (en) | 2012-12-01 | 2012-12-01 | Electronic differential lock sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016675B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154375A (en) * | 2013-05-14 | 2014-11-19 | 上海维萨仪表制造有限公司 | Temperature measuring and pressure measuring data collection head for high pressure pipeline |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4755636A (en) * | 1987-06-24 | 1988-07-05 | Taiyo, Ltd. | Piston position detecting device for fluid pressure cylinder |
| DE19513967A1 (en) * | 1995-04-13 | 1996-10-17 | Kemptener Gmbh Maschf | Piston cylinder unit |
| CN2593165Y (en) * | 2003-01-13 | 2003-12-17 | 杭州水表有限公司 | Electronic telemetering signalling water meter |
| CN101256087A (en) * | 2008-04-09 | 2008-09-03 | 长沙矿山研究院 | non-contact position sensor |
| CN201796814U (en) * | 2010-05-18 | 2011-04-13 | 珠海吉泰克燃气设备技术有限公司 | Differential pressure switch |
| CN102169350A (en) * | 2010-02-25 | 2011-08-31 | 北京中冶华润科技发展有限公司 | Fluid sensor |
| CN202971806U (en) * | 2012-12-01 | 2013-06-05 | 宝鸡艾迪机械电器有限公司 | Electronic type differential lock sensor |
-
2012
- 2012-12-01 CN CN201210520080.4A patent/CN103016675B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4755636A (en) * | 1987-06-24 | 1988-07-05 | Taiyo, Ltd. | Piston position detecting device for fluid pressure cylinder |
| DE19513967A1 (en) * | 1995-04-13 | 1996-10-17 | Kemptener Gmbh Maschf | Piston cylinder unit |
| CN2593165Y (en) * | 2003-01-13 | 2003-12-17 | 杭州水表有限公司 | Electronic telemetering signalling water meter |
| CN101256087A (en) * | 2008-04-09 | 2008-09-03 | 长沙矿山研究院 | non-contact position sensor |
| CN102169350A (en) * | 2010-02-25 | 2011-08-31 | 北京中冶华润科技发展有限公司 | Fluid sensor |
| CN201796814U (en) * | 2010-05-18 | 2011-04-13 | 珠海吉泰克燃气设备技术有限公司 | Differential pressure switch |
| CN202971806U (en) * | 2012-12-01 | 2013-06-05 | 宝鸡艾迪机械电器有限公司 | Electronic type differential lock sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154375A (en) * | 2013-05-14 | 2014-11-19 | 上海维萨仪表制造有限公司 | Temperature measuring and pressure measuring data collection head for high pressure pipeline |
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| CN103016675B (en) | 2015-09-30 |
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Granted publication date: 20150930 Termination date: 20171201 |