CN103050309A - Signal switch for differential lock - Google Patents
Signal switch for differential lock Download PDFInfo
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- CN103050309A CN103050309A CN2012105703589A CN201210570358A CN103050309A CN 103050309 A CN103050309 A CN 103050309A CN 2012105703589 A CN2012105703589 A CN 2012105703589A CN 201210570358 A CN201210570358 A CN 201210570358A CN 103050309 A CN103050309 A CN 103050309A
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- reed
- housing
- compress spring
- differential lock
- gland
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Abstract
The invention discloses a signal switch for a differential lock. The signal switch comprises a straight-cylindrical shell and a press cover assembly arranged inside the shell, a press head assembly and a conduction assembly; the shell is used as a negative electrode of the switch; a wiring inserting sheet in the press cover assembly is used as a positive electrode of the switch; a second compression spring and a press nut are driven to move through a push rod when the signal switch works, so that a reed base and a reed are pushed to move towards an adjusting screw; and once the reed is in contact with the adjusting screw, a current signal can pass through the wiring inserting sheet, the adjusting screw, the reed, the reed base, a third compression spring and the shell, so as to form a closed loop. With the adoption of the signal switch for the differential lock provided by the invention, the defects in the conventional signal switch for the differential lock of complex structure, high cost, insecurity in mounting and use of a lead wire and the like can be overcome. Furthermore, the signal switch for the differential lock provided by the invention has the characteristics of simple structure, low manufacturing cost, stable and reliable working and the like.
Description
Technical field
The invention belongs to vehicle signal control switch technical field, relate to a kind of automobile differential lock signal control switch.
Background technology
In recent years, along with constantly developing by leaps and bounds of auto technology, the car electrics product is also constantly updating, and various multi-form appliance switches are widely used in the vehicle control system, particularly in the differential-lock control of special-purpose vehicle.Wherein the differential lock signaling switch is a kind of very general appliance switch, can realize when motor turning the control output of deflecting roller differential lock signal.But, original differential lock signal switching device inside labyrinths that adopt by sensitive switch more, purchase cost is high, and resistance to elevated temperatures is poor during this sensitive switch welding lead, and wire is easily twisted into two parts during installation.Therefore, simplified structure, reduction cost and improvement electrically conducting manner have become the problem that mainly solves.
Summary of the invention
The object of the invention is to overcome complex structure, cost that original differential lock signaling switch exists are high, wire is installed and use in the deficiency such as unreliable, and then provide a kind of simple in structure, cost of manufacture is low, long service life, the reliable differential lock signaling switch of working stability.
For solving the problems of the technologies described above, implementation of the present invention is such:
A kind of differential lock signaling switch, comprise the housing of straight-tube shape and be arranged on housing interior gland assembly, pressure head component and feed-through assembly, wherein: (one), described housing center are through hole, be disposed with first step, second step, the 3rd step and the 4th step in the through hole from top to bottom, and through hole is divided into first step hole, second step hole, the 3rd stepped hole, the 4th stepped hole and the 5th stepped hole that the aperture reduces gradually successively, close up with rolling in the upper end of housing, the lower end of housing is fixed on the automotive axle, and as the negative pole of signaling switch; (2), described gland assembly is comprised of gland, adjustment screw, locking nut and male blade, gland is the step cylinder that insulating material is made, upper end diameter is little, lower end diameter is large, by the rolling closing in of housing upper end and the first step of housing gland is fixed on the housing; Adjustment screw is vertically passed the center of gland, and by locking nut male blade is fixed on the gland; (3), described pressure head component is comprised of with the pressure cap that rolling closes up push rod, the second Compress Spring and lower end, the upper end of push rod is bigger diameter end, the lower end is miner diameter end, pressure cap is enclosed within on the bigger diameter end of push rod, the second step of housing is close in the pressure cap lower end, and by the rolling closing in of pressure cap lower end the second Compress Spring is fixed between the bigger diameter end of pressure cap and push rod; The miner diameter end of push rod is arranged in the 4th stepped hole of housing; (4), described feed-through assembly is comprised of the first Compress Spring, the 3rd Compress Spring, reed and reed seat, the reed seat is arranged on the housing second step, the lower end of reed and adjustment screw keeps certain gap, the first Compress Spring is arranged between gland and the reed, and reed is pressed on the reed seat; The 3rd Compress Spring is arranged between the 3rd step of reed seat and housing.
In the above-mentioned differential lock signaling switch, power value size order was when described the first Compress Spring, the second Compress Spring and the 3rd Compress Spring were worked: the second Compress Spring＞the first Compress Spring＞the 3rd Compress Spring.
In the above-mentioned differential lock signaling switch, be provided with sealing ring at the miner diameter end middle part of push rod.
In the above-mentioned differential lock signaling switch, the gap of described reed and adjustment screw lower end can be regulated by adjustment screw is flexible.
In the above-mentioned differential lock signaling switch, the upper transverse plane of described pressure cap is through silver-plated processing, to improve electric conductivity.
In the above-mentioned differential lock signaling switch, the horizontal sextant angle of described reed is 15 °～45 °.
In the above-mentioned differential lock signaling switch, the gap of described reed and adjustment screw (3) lower end is 1～5mm.
The beneficial effect that the present invention has is as follows:
1, the present invention has overcome the poor and wire of the resistance to elevated temperatures of existing microswitch type differential lock signaling switch and the deficiency such as has easily twisted into two parts, and has the advantages such as simple in structure, low cost of manufacture.
2, the present invention adopts housing as the negative pole of signaling switch, and male blade is as the positive pole of signaling switch, realize the conducting of positive pole and negative pole during work by male blade, adjustment screw, reed, reed seat, the 3rd Compress Spring and housing, working stability is reliable.
3, the gap of reed of the present invention and adjustment screw lower end can be regulated by the flexible of adjustment screw, has satisfied the application of different vehicle differential lock system, has improved the scope of application of switch.
4, the present invention is provided with sealing ring at the middle part of push rod, has played sealing and waterproof action.
5, the present invention carries out silver-plated processing at the upper transverse plane of pressure cap, has improved electric conductivity, has prolonged the useful life of pressure cap.
Description of drawings
Accompanying drawing is the structural representation of a specific embodiment of the present invention.
Being labeled as wherein: 1, housing, 2, gland, 3, male blade, 4, adjustment screw, 5, locking nut, 6-1, the first Compress Spring, 6-2, the second Compress Spring, 6-3, the 3rd Compress Spring, 7, reed, 8, the reed seat, 9, pressure cap, 10, sealing ring, 11, automotive axle, 12, push rod.
Embodiment
As shown in the figure, differential lock signaling switch of the present invention comprise housing 1 and be arranged on housing 1 top the gland assembly, be arranged on the pressure head component of housing 1 bottom and be arranged on the feed-through assembly at housing 1 middle part; Described housing 1 is made by metal material, straight-tube shape, the center is through hole, establish first step, second step, the 3rd step and the 4th step in the hole, and through hole is divided into first step hole, second step hole, the 3rd stepped hole, the 4th stepped hole and the 5th stepped hole, from top to bottom, the aperture reduces gradually.Described housing 1 lower end adopts screw thread to be fixed on the automotive axle 11.
The gland assembly comprises gland 2, adjustment screw 4, locking nut 5 and male blade 3, wherein gland 2 is the step cylinder, upper end diameter is little, lower end diameter is large, and by the rolling closing in of housing 1 upper end gland 2 is fixed on the housing 1, and rolling closes up and just in time is arranged on the step of gland 2; Adjustment screw 4 is vertically passed the center of gland 2, expose head of screw, and by locking nut 5 male blade 3 is fixed on the gland 2, in order to the connection distance of conditioning signal switch, locking nut 5 is installed on the adjustment screw 4 with male blade 3, together as the positive pole of signaling switch.
Pressure head component comprises push rod 12, pressure cap 9 and the second Compress Spring 6-2, the upper end of push rod 12 is bigger diameter end, the lower end is miner diameter end, pressure cap 9 is enclosed within the bigger diameter end of push rod 12, and the rolling by pressure cap 9 lower ends closes up the second Compress Spring 6-2 is fixed between the bigger diameter end of pressure cap 9 and push rod 12, the 3rd step of housing 1 is close in the lower end of pressure cap 9, and the miner diameter end of push rod 12 is arranged in the 4th stepped hole of housing 1.Silver-plated processing can be adopted in the upper surface of pressure cap 9, has improved electric conductivity, prolongs its working life.As a kind of optimal way, the miner diameter end of described push rod 12 middle part is provided with sealing ring 10, plays effect dustproof and sealing.
Feed-through assembly comprises the first Compress Spring 6-1, the 3rd Compress Spring 6-3, reed 7 and reed seat 8, reed seat 8 is placed on housing 1 first step, reed 7 level angles are generally 15 °～45 °, and be arranged on the reed seat 8, the gap that reed 7 is certain with the lower end maintenance of adjustment screw 4, and can carry out the gap adjustment by adjustment screw 4 flexible, it is adjustable that the gap is generally 1mm～5mm; The first Compress Spring 6-1 is arranged between gland 2 and the reed seat 8, and reed 7 is pressed on the reed seat 8; The 3rd Compress Spring 6-3 is arranged between reed seat 8 and housing 1 the 3rd step; For the first Compress Spring 6-1 is fixed at vertical direction, have the spring fitting groove in the bottom of gland 2.
The first Compress Spring 6-1, the second Compress Spring 6-2 are the spring of three different stretch parameters with the 3rd Compress Spring 6-3, and power value size order is during work: the second Compress Spring 6-2＞the first Compress Spring 6-1＞the 3rd Compress Spring 6-3.
The course of work of the present invention is: when common switch open circuit, system keeps state shown in the drawings, because the pressure that the pressure that the first Compress Spring 6-1 produces produces greater than the 3rd Compress Spring 6-3, reed seat 8 does not break away from the first step of housing, so keep the gap between adjustment screw 4 and the reed 7, switch keeps open circuit.Mechanical push rod enters the 4th stepped hole of housing in automobile differential lock system, and during the push rod 12 of driving signal switch, because the second Compress Spring 6-2 pressure is greater than the pressure of the first Compress Spring 6-1, namely driving the second Compress Spring 6-2 and pressure cap 9 moves together, thereby actuating spring seat 8 and reed 7 are to adjustment screw 4 motions, in case reed 7 touches adjustment screw 4, current signal can pass through male blade 3, adjustment screw 4, reed 7, reed seat 8, the 3rd Compress Spring 6-3 and housing 1 form the closed-loop path, automobile differential lock system can control automobile driving wheel and carry out the differential lock function so, thereby make the driver finish smoothly the steering operation of automobile, when the push rod 12 of mechanical push rod separating signal switch in the differential lock system, switch recovers open-circuit condition.
Claims (7)
1. a differential lock signaling switch is characterized in that: comprise the housing (1) of straight-tube shape and be arranged on housing (1) interior gland assembly, pressure head component and feed-through assembly;
Described housing (1) center is through hole, be disposed with first step, second step, the 3rd step and the 4th step in the through hole from top to bottom, and through hole is divided into first step hole, second step hole, the 3rd stepped hole, the 4th stepped hole and the 5th stepped hole that the aperture reduces gradually successively, close up with rolling in the upper end of housing (1), the lower end of housing (1) is fixed on the automotive axle (11), and as the negative pole of signaling switch;
Described gland assembly is comprised of gland (2), adjustment screw (4), locking nut (5) and male blade (3), the step cylinder that gland (2) is made for insulating material, upper end diameter is little, lower end diameter is large, by the rolling closing in of housing (1) upper end and the first step of housing (1) gland (2) is fixed on the housing (1); Adjustment screw (4) is vertically passed the center of gland (2), and by locking nut (5) male blade (3) is fixed on the gland (2);
Described pressure head component is comprised of with the pressure cap (9) that rolling closes up push rod (12), the second Compress Spring (6-2) and lower end, the upper end of push rod (12) is bigger diameter end, the lower end is miner diameter end, pressure cap (9) is enclosed within on the bigger diameter end of push rod (12), the 3rd step of housing (1) is close in pressure cap (9) lower end, and by the rolling closing in of pressure cap (9) lower end the second Compress Spring (6-2) is fixed between the bigger diameter end of pressure cap (9) and push rod (12); The miner diameter end of push rod (12) is arranged in the 4th stepped hole of housing (1);
Described feed-through assembly is comprised of the first Compress Spring (6-1), the 3rd Compress Spring (6-3), reed (7) and reed seat (8), reed seat (8) is arranged on housing (1) second step, the gap that reed (7) is certain with the lower end maintenance of adjustment screw (4), the first Compress Spring (6-1) is arranged between gland (2) and the reed (7), and reed (7) is pressed on the reed seat (8); The 3rd Compress Spring (6-3) is arranged between the 3rd step of reed seat (8) and housing (1).
2. differential lock signaling switch according to claim 1 is characterized in that: power value size order is when described the first Compress Spring (6-1), the second Compress Spring (6-2) and the 3rd Compress Spring (6-3) work: the second Compress Spring (6-2)＞first Compress Spring (6-1)＞the 3rd Compress Spring (6-3).
3. differential lock signaling switch according to claim 1 is characterized in that: be provided with sealing ring (10) in the middle part of the miner diameter end of push rod (12).
4. differential lock signaling switch according to claim 1 is characterized in that: described reed (7) can stretch by adjustment screw (4) with the gap of adjustment screw (4) lower end and regulate.
5. differential lock signaling switch according to claim 1 is characterized in that: the silver-plated processing of upper surface process of described pressure cap (9).
6. differential lock signaling switch according to claim 1, it is characterized in that: the horizontal sextant angle of described reed (7) is 15 °～45 °.
7. differential lock signaling switch according to claim 1 is characterized in that: described reed (7) is 1～5mm with the gap of adjustment screw (3) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105703589A CN103050309A (en) | 2012-12-25 | 2012-12-25 | Signal switch for differential lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105703589A CN103050309A (en) | 2012-12-25 | 2012-12-25 | Signal switch for differential lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103050309A true CN103050309A (en) | 2013-04-17 |
Family
ID=48062917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105703589A Pending CN103050309A (en) | 2012-12-25 | 2012-12-25 | Signal switch for differential lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103050309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320922A (en) * | 2018-01-05 | 2018-07-24 | 浙江中马传动股份有限公司 | Automobile speed variator reverse gear switchs |
| CN115132511A (en) * | 2022-07-11 | 2022-09-30 | 沈阳仪表科学研究院有限公司 | Pressure switch for realizing mechanical unlocking function and unlocking method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101069148B1 (en) * | 2010-03-26 | 2011-09-30 | 주식회사 스페이스솔루션 | The contacting switch having high safety |
| CN202616099U (en) * | 2012-06-20 | 2012-12-19 | 芯讯通无线科技（上海）有限公司 | Button waterproof structure |
| CN203070986U (en) * | 2012-12-25 | 2013-07-17 | 西安航天远征流体控制股份有限公司 | Differential lock signal switch |
-
2012
- 2012-12-25 CN CN2012105703589A patent/CN103050309A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101069148B1 (en) * | 2010-03-26 | 2011-09-30 | 주식회사 스페이스솔루션 | The contacting switch having high safety |
| CN202616099U (en) * | 2012-06-20 | 2012-12-19 | 芯讯通无线科技（上海）有限公司 | Button waterproof structure |
| CN203070986U (en) * | 2012-12-25 | 2013-07-17 | 西安航天远征流体控制股份有限公司 | Differential lock signal switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320922A (en) * | 2018-01-05 | 2018-07-24 | 浙江中马传动股份有限公司 | Automobile speed variator reverse gear switchs |
| CN115132511A (en) * | 2022-07-11 | 2022-09-30 | 沈阳仪表科学研究院有限公司 | Pressure switch for realizing mechanical unlocking function and unlocking method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |