CN201009904Y

CN201009904Y - Deformation contactor

Info

Publication number: CN201009904Y
Application number: CNU2007201411478U
Authority: CN
Inventors: 刘春雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-28
Filing date: 2007-03-28
Publication date: 2008-01-23
Anticipated expiration: 2017-03-28

Abstract

The utility model belongs to a displacement contactor which comprises a shell, a linearly-moving slide plate provided inside the shell, an indicating connector ring and a pre-warning connector point both fixed on the slide plate, a slide way provided inside the shell to allow the slide plate to move linearly thereon, a pair of indicating connector sheet and pre-warning connector sheet which are adapted to contact the indicating connector ring and pre-warning connector point and respectively at two sides of the slide way; an external circuit connected with the indicating connector sheet and the pre-warning connector sheet; a trapezoid notch arranged at one side of the slide plate, a swingable locking bar arranged at the same side of the trapezoid notch, a lock hook arranged on the locking bar and adapted to be locked on the trapezoid notch, an ejector pin inserted into the shell and attached to the bottom of the locking bar, a spring with one end connected with one end of the slide plate and the other end fixedly connected with the shell. The utility model can efficiently overcome the signal device failure that the splinter is shocked to eject up during the high-speed running of train, and also has the advantages of stable performance, double warning effect, single structure, easy regulation, assembly and update, and convenient maintenance and repair.

Description

A kind of displacement contactless switch

Technical field

The utility model belongs to a kind of displacement contactless switch of railway switch ZD6 electric switch machine, and contact is reliable, vibration strength is strong, has dissectible pin state warning function.

Background technology

Displacement contactless switch significant feature in switch machine is: when squeezing trouble, the electric switch machine dissectible pin is squeezed off, and throw rod produces displacement with respect to the tooth bar piece, the perpendicular push rod of jack-up displacement contactless switch, thus cut off the switch machine indication circuit, provide alarm message.Existing displacement contactless switch is made up of the push rod regulating mechanism of bottom and the reed-type micro-switch two parts on top.The push rod regulating mechanism is used for regulating between contact lower end and the tooth bar piece push rod and keeps predetermined gap; Then in order to produce displacement when throw rod with respect to the tooth bar piece, push rod is pushed up rising to micro-switch, and contact heel from break, is cut off the indication circuit of switch machine by bullet when putting in place.

Practice shows that existing displacement contactless switch mainly contains four aspect design defect:

1, there is dead point (contact heel is in the intermediate equilibria position, and promptly not upspringing does not fall yet) in this structure, and when contact pressure descended, the dead point stroke will strengthen, and makes moving contact be easy to stop at midway location, thereby influences traffic safety;

2, the too small contact pressure of reed-type micro-switch shell fragment elastic force 0.68～1N (iron mark be defined as 0.68N) only, often shell fragment is upspring easily under the big condition of train vibration, particularly the higher section of freight train speed operation;

3, because long-term use, make the shell fragment flexibility decrease, contact pressure can't guarantee.

4, deformation during normal use can take place in dissectible pin gradually, up to cut-out, can't carry out early warning before dissectible pin cuts off.

Owing to there is above design defect, make it to cause easily the signalling set fault, directly influence railway operation safety, train running on scheduled time and conveying efficiency, be technical barrier of not resolving and potential safety hazard that railway signals equipment existed since the utilization midium or long term.

Summary of the invention

The purpose of this utility model provides a kind of displacement contactless switch, with insulation slide plate conductive mechanism, it can effectively be overcome at the interval shell fragment of train high-speed cruising shaken the signalling set fault of easily upspringing, it is accurately stable to have function simultaneously, the effect that dual warning is arranged, and single between structure, adjust assembling easily and upgrade, be convenient to the advantage of care and maintenance.For this reason, be provided with the slide plate that can move along a straight line in the utility model housing, be fixed with expression contact ring and early warning contact ring on the slide plate, have in the housing and can supply the straight-line chute of slide plate, the chute both sides are provided with two pairs of energy and expression contact ring and contacted expression contact strip of early warning contact ring and early warning contact strip, the expression contact strip is connected with external circuit with the early warning contact strip, slide plate one side has a trapeze cut, the locking rod that can swing and trapeze cut are in the same side, one latch hook that can be stuck on the trapeze cut is arranged on the locking rod, one push rod stretches into the bottom surface that withstands on locking rod one end in the housing, and slide plate one end is connected with spring one end, and the spring other end is captiveed joint with housing.The said structure design has realized the purpose of this utility model.

The utility model has the advantages that thoroughly having overcome former displacement contactless switch is shaken the design defect of easily upspringing at the interval shell fragment of train high-speed cruising, be different from former displacement contactless switch simultaneously and when squeezing trouble, can only represent the disconnection of reporting to the police by the reset lever change in location, it not only has above-mentioned functions, can also provide the electric current alerting signal, reach the effect of dual warning, and it is single between structure, the advantage that the bottom push rod regulating mechanism that keeping has increased former displacement contactless switch is convenient to regulate, thereby make the easier adjustment assembling of displacement contactless switch, be convenient to signalman's maintenance, maintenance has also made things convenient for the update of displacement contactless switch.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Structural representation when Fig. 2 is warning of the present utility model

Structural representation when Fig. 3 is disconnection of the present utility model

Specific embodiments

As shown in Figure 1 to Figure 3, a kind of displacement contactless switch is made up of fixed block 12 and housing 11.Fixed block and housing lower end are affixed.Be provided with the slide plate 1 that can move along a straight line in the housing.Be fixed with expression contact ring 3 and early warning contact ring 2 on the slide plate.Have in the housing and can supply the straight-line chute 14 of slide plate, the chute both sides are provided with two pairs of energy and expression contact ring and contacted expression contact strip 4 of early warning contact ring and early warning contact strip 5, and the expression contact strip is connected with external circuit by four junction blocks 16 that are positioned on the relative housing with the early warning contact strip.Slide plate one side has a trapeze cut 15.The locking rod 7 that can swing and trapeze cut are in the same side.One latch hook 6 that can be stuck on the trapeze cut is arranged on the locking rod.One push rod 13 stretches into the bottom surface that withstands on locking rod one end in the housing, and slide plate one end is connected with spring 8 one ends, and the spring other end is captiveed joint with housing.

Described expression contact ring and early warning contact interannular have insulator arrangement.Insulator arrangement can be insolator disc, represents that promptly contact ring and early warning contact ring are conducting ring, and itself and slide plate insulate affixed.

Described locking rod middle part is coupling by fulcrum shaft 17 and housing, and the latch hook of this locking rod one end contacts with trapeze cut, and the other end contacts with push rod, and this locking rod one side is connected with a torsion spring 10, and this torsion spring is captiveed joint with housing.

Establish pressure spring 9 between the drive link 18 of push rod and its lower end, the effect of pressure spring is to be convenient to adjust pressure between push rod and the drive link.

The utility model is equipped with expression contact ring and early warning contact ring on the slide plate that can horizontally slip, wherein an end is equipped with retracing spring.Slide plate is pulled left, represented that the contact ring contacts with two expression contact strips, makes and the indication circuit conducting of representing that contact strip links to each other this moment; When the switch machine dissectible pin deforms, throw rod and tooth bar piece generation relative displacement, when upwards promoting drive link and push rod and reaching 1.5mm, locking rod rotates around fulcrum shaft, the latch hook of locking rod withdraws from the trapeze cut on the slide plate, slide plate makes early warning contact ring contact with the early warning contact strip under the effect of retracing spring, and warning circuit is connected, provide warning signal, be convenient to the attendant and in time find and handling failure, represent that simultaneously the contact ring still contacts with the expression contact strip, indication circuit is conducting still.When the switch machine dissectible pin ruptured, push rod was during by the jack-up 2.5-3mm left and right sides, and the latch hook of locking rod withdraws from trapeze cut fully, slide plate in the effect lower slider of retracing spring to low order end, thorough cut off.

As shown in Figure 1, the utility model inserts the electric switch machine circuit, and left side two junction blocks are conducting state, are normal working.

As shown in Figure 2, the utility model is the warning state: when the switch machine dissectible pin deforms, throw rod and tooth bar piece generation relative displacement, when upwards promoting push rod and reaching 1.5mm, locking rod rotates around fulcrum shaft, the latch hook of locking rod withdraws from the slide plate breach, slide plate is under the effect of retracing spring, sliding to the right makes early warning contact ring contact with the early warning contact strip, warning circuit is connected, provide warning signal and be convenient to attendant in time discovery and handling failure, represent the contact ring simultaneously and represent contact strip, the conducting still of electricity favourable turn indication circuit still in on-state.

As shown in Figure 3, the utility model is off-state: switch machine dissectible pin fracture, this moment push rod by jack-up 2.5-3mm about, the locking rod latch hook withdraws from the slide plate breach fully, slide plate arrives low order end in the effect lower slider of retracing spring, and expression and early warning circuit thoroughly disconnect.

In a word, the utility model can effectively overcome at the interval shell fragment of train high-speed cruising and shaken the letter of easily upspringing Number equipment fault has the function accurate stable simultaneously, and the effect of dual-alarm is arranged, and single between structure, transfers easily Self-containedly join renewal, be convenient to the advantage of care and maintenance, can promote the use of.

Claims

1. displacement contactless switch, formed by fixed block and housing, its architectural feature is: be provided with the slide plate that can move along a straight line in the housing, be fixed with expression contact ring and early warning contact ring on the slide plate, have in the housing and can supply the straight-line chute of slide plate, the chute both sides are provided with two pairs of energy and expression contact ring and contacted expression contact strip of early warning contact ring and early warning contact strip, the expression contact strip is connected with external circuit with the early warning contact strip, slide plate one side has a trapeze cut, the locking rod that can swing and trapeze cut are in the same side, one latch hook that can be stuck on the trapeze cut is arranged on the locking rod, one push rod stretches into the bottom surface that withstands on locking rod one end in the housing, slide plate one end is connected with spring one end, and the spring other end is captiveed joint with housing.

2. by the described a kind of displacement contactless switch of claim 1, its architectural feature is: described expression contact ring and early warning contact interannular have insulator arrangement.

3. by the described a kind of displacement contactless switch of claim 1, its architectural feature is: described locking rod middle part is coupling by fulcrum shaft and housing, the latch hook of this locking rod one end contacts with trapeze cut, the other end contacts with push rod, this locking rod one side is connected with a torsion spring, and this torsion spring is captiveed joint with housing.