DE1157645B - Circuit arrangement for the individual resolution of the locks of points in electrical signal boxes - Google Patents

Description

Circuit arrangement for the individual release of the locks of points in electrical interlockings The invention relates to a circuit arrangement for the individual release of the locks of points in electrical interlockings, in to which the turnouts are assigned route setting relays and route closing relays and two release relays that act in both directions of travel are arranged for each turnout together with a contact of the track vacancy relay of the turnout section control the release relays of neighboring turnouts.

Resolution circuits are known in which the resolution switching means for the individual release of the lock of each switch or the one in a common one Assigned to the section lying turnouts and in the spatially combined turnout or track relay groups are arranged.

There are also circuit arrangements for the individual release of the switch locks known, in which two release relays are assigned to each switch section, from which one through a contact of the track relay of the own section and the others through contacts of the track relays of both on their own sections in the route subsequent sections is controlled.

Here, the release of the lock is several in the same section horizontal turnouts controlled by contacts of the same release relay. Furthermore are Circuit arrangements for individual resolution are known in which the individual points, even if they are in a common monitoring section, two release relays each are assigned and the closure resolution of a switch made both dependent on it is that the associated section has been passed, as well as that the closure one of the switches connected in the route is dissolved. Here speak the Release relay of successive turnouts depending on each other. To however to achieve that this is not only for the release relays for turnouts in separate Sections, but also with the release relays further lying in the same section Switches are made, significant changes to the resolution circuit are required there, depending on whether only one or more turnouts belong to a section.

The main object of the invention is to provide a resolution circuit to create that with minor, easily manufacturable changes to the wiring of turnout relay groups in sections with any number of turnouts, which are monitored by the same vacancy relay can be used. True is one Circuit arrangement for track adjustment units known, in which by changing the wiring of connections to the relay groups of the individual turnouts a change in the mode of operation one or more relays participating in the release of the lock are provided; however, this optional wiring only allows one in the turnout relay group arranged release relay either when occupying or when subsequently vacating or regardless of the occupancy of the track section following in the direction of travel responds or only becomes effective when the lock of the following switch is released is. This known measure is not suitable for achieving the stated object.

In contrast, this stated object can be achieved in that according to the invention to control the release relays of the leading and branching strands Adjacent turnouts connected to a turnout have a common contact of the track vacancy detection relay of the switch section is provided with the in series of the release relay this Soft controlled working contacts connected in parallel on the input side are arranged are whose output sides are either permanently connected to one another or via a normally open contact one of the two release relays connected or not connected are, depending on whether both, only one or none of the neighboring turnouts in one separate monitoring section.

The release of the individual switch locks, i.e. the resetting the route relay assigned to the switch section, e.g. B. the locking relay and / or the locking relay and one route setting relay each for the plus or minus position of the turnout can be done immediately after clearing the section take place simultaneously in a known manner. To achieve that one after broaching of the section of sustained train is free of profile in front of this section and not about the last car rolls back into this profile when the brakes are released, so can it It may be advisable to do the dissolving only after clearing the following section. The same effect can also be achieved by gradually dissolving it, by only activating the route setting relays and when clearing the section concerned The locking relay must only be reset when clearing the following section. This step-by-step resolution has the advantage that none in the reset circuits Contacts of the free signal relays of the neighboring sections are required.

Embodiments of the invention are shown in the drawings.

Fig. 1 shows the partial circuit unit allotted to a switch for the response circuits of the two release relays of a turnout; in Fig.2 the holding circuits of the two release relays, in Fig. 3 the reset circuits the associated route setting relay and in Fig. 4 the reset circuit of the Locking relay shown; in Fig. 5 is a track plan section and in Fig. 6 the circuit connection of the response circuits of the neighboring relay groups Turnout arranged release relay shown; 7 and 8 and 9 and 10, respectively two further layout cases each with a track plan section and a circuit part reproduced.

The position of the relays or their contacts shown in the circuits applies to the basic position of the circuit. It is assumed that all points, as indicated by strong lines in FIGS. 5 and 9, are in the right-hand position (plus position). The contacts LP 1 and LP 3 (FIG. 1) of position monitors (not shown) for the positive position of the switches 1 and 3 (FIG. 5) are therefore closed. It is also assumed that the route setting relays and the locking relays are designed as backup relays.

If the route from track G to track B 1 (Fig. 5) is set, for which the switches 1 and 3 must be in the plus position, are not shown in FIG Circuits the active control windings of the route control relays assigned to points 1 and 3 switched on for the plus position and the active control windings of the locking relays. In the sub-circuit unit W 1 of the switch 1, which is shown in Fig. 1 with solid lines is shown, and change in the associated subcircuits according to FIGS while the contacts SP 11 to SP 14 and WV11 their position. In the only partially shown Sub-circuit unit of the wimp, the contact SP31 is closed.

During a train journey from left to right, when an insulated track section of track G is occupied in front of switch 1, contact GF 11 (Fig. 1) of the associated vacancy signal relay in the circuit of response winding A of release relay WA 11 of switch 1 is closed. The contacts WA 111 to WA 115 are actuated. If the train occupies the isolated section of the switch 1, the contacts WF 11 to WF 13 of the vacancy signal relay (not shown) of the switch 1 are actuated. The response winding A of the release relay WA 32 of the section of the switch 3 lying ahead is switched on via the contacts WF 11, WA 113, SP 11 and LP 3 , so that the contact WA 323 is closed. If the train continues and clears the section G, the response circuit of the relay WA 11 is interrupted by opening the contact GF 11; the relay remains attracted, however, since its holding winding H (FIG. 2) is now excited via the contacts SP 13, WF12 and WA 111. The train occupies the next portion of the switch 3, the controlled by the occupancy relays this section contact WF31 is closed so that, SP 31 and LP 1, the Ansprechwicklung A of the opening relay WA is turned 12 via the contacts WF31, WA 323, which at its If the contacts WA 121 to WA 125 are activated. Since the two contacts WA 112 and WA 122, which are arranged in series parallel to the contact WF 12, are now closed, the holding windings H of the two relays WA 11 and WA 12 initially remain above theirs even after the switch 1 has been cleared and the contact WF12 has been opened Self-holding contacts WA 111 or WA 121, WA 122 and WA 112 and the contact SP 13 are energized. Only when the contact WF 13 in the circuit of the reset winding of the route setting relay SP 1 for the positive position of the switch l is closed when the switch 1 is cleared, so that this relay responds and its contacts SP 11 to SP 14 return to the basic position shown, are with the contact SP 13, the circuits of the holding windings of the relays WA 11 and WA 12 interrupted. The relay WA 11 drops out because the contact GF 11 in the circuit of the response winding A of this relay is open. The relay WA 12 remains energized via the contacts WF 31, WA 323, SP 31 and LP 1 as long as the section of the switch 3 is occupied. If this section is cleared, the contact WF 31 switches off the relay WA 12. The contacts WA 111 to WA 115 and WA 121 to WA 125 then again assume the position shown. Therefore, the reset winding of the locking relay WV1 is now switched on via the contacts SP 14, SM 14, WA 115, WA 125 and WV11 and the locking of the switch 1 is released. The route relays assigned to the switch 1 are therefore reset in stages, namely during the described trip the route setting relay SP 1 when clearing its own switch section, whereas the locking relay WV1 only when clearing the following section. In the circuit of the reset winding of the locking relay, the basic position (contacts SP 14, SM 14, WA 115 and WA 125 are closed) of both route control relays SP 1 and SM 1 and both release relays WA 11 and WA 12 are checked.

If a route is set via the minus branch of the switch 1, the standing relay SM 1 is actuated instead of the standing relay SP 1 , so that the contacts SM 11 to SM 14 flip over. When changing the switch, the contact LP 1 is opened and the contact LM1 is closed. The pulling and holding of the release relay WA 12 is then dependent on the release relay of the switch 2 instead of the release relay of the switch 3. When driving in the opposite direction the opening relay WA 12 responds in the sub-circuit unit W 1 first, and depending upon the guideway either in filling of the switch 3 or the switch 2. In this case, with the contact WA 123 the response of the opening relay WA 32 at Occupy the switch 1 prepared.

If malfunctions occur in which the operational lock release by the train journey does not occur, the reset windings of the route setting relays SP 1 and SM 1 can be switched on via the contact FHT, which is directly or indirectly controlled by a switch button, and the contact WT 1, which is controlled by the switch button on switch 1 . The auxiliary release circuits of the route setting relays of all turnouts are connected to the FHT contact. The step-by-step release or reset of the route relays in the active position results in particularly simple conditions for the auxiliary release, since no switching means dependent on the auxiliary button are required in the circuits of the switch locking relays.

If, when traveling from left to right into the station track B 1 , the locking relay WV1 is to be reset when the switch 1 is cleared, i.e. if the Fahrstraßenrelaisnlcht are to be gradually released, then in the circuit according to FIG the switch position relay controlled contact LP 1 or in series with this contact a working contact of the route setting relay SP 1 can be arranged. When traveling in the opposite direction and when traveling between tracks G and B 2 or B 3 , the route relays are then gradually reset. If the locking relay WVl is also to be reset during all trips in the opposite direction, i.e. not only when traveling from left to right into tracks B 2 and B 3, when clearing the switch 1, this can be done, for example, by arranging additional contacts SP 15 connected in parallel and SM 15 of both route relays SP 1 and SM I can be achieved in the circuit of the response winding A of the dissolving unit WA 11, as indicated by dashed lines in FIG. If the locking relay WVl is to be reset on all trips after clearing the switch 1, this can be done without changing the circuit according to FIG. 1, ie without the contacts SP 15 and SM 15, by omitting or short-circuiting the contacts WA 115 and WA 125 (Fig. 4) can be achieved. But it is also possible for this purpose to lead the circuit of the response winding A of the release relay WA 12 via the contacts SP 15 and SM 15. In this case, the basic position of the release relay in the reset circuit of the locking relay can be checked.

In Fig. 1 it is also indicated that the circuits of the sub-circuit unit W1 of the switch 1, which are dependent on relays of adjacent sections or are required to control the release relays of these sections, end at terminals, of which s1 and s 2 of the switch tip, p 1 and p 2 are assigned to the plus strand and m 1 and m 2 are assigned to the minus strand of switch 1. The terminals of the sub-circuit units W2 and W3 for switches 2 and 3 are designated in the same way. The connections of the similarly structured sub-circuit units W1 to W3 of all three switches required for the track plan according to FIG. 5 can then be established by pluggable connections between the corresponding terminals, as is indicated schematically in FIG. If the turnout section is followed by a track section to which no release relays are assigned, only a single connection is required from the terminal s 2, p 2 or m 2 assigned to the respective turnout line after the contact of the release relay of the adjacent track section.

In the practice of the invention, the circuits 1 to 4 with their circuit elements expediently in the switch relay groups arranged.

If several points are in a common insulating section, the circuits shown in FIGS. 1 to 4 can thus be used for each individual switch are essentially retained. The subcircuits according to FIG. 1 are then also to be connected according to the track plan. In order to ensure that in these cases too to make the second dissolving ais of a switch respond only when the following insulating section is occupied, the subcircuits are according to the invention according to FIG. 1 according to FIGS. 8 and 10 modified.

In the track plan section according to FIG. 7, a double crossing switch is located between the switch 3 and the station track B 1, for the two parts 4 and 5 of which a common insulation section is provided, which is monitored by the track relay 45. Fig. 8 shows the circuits for the response windings A of the release relays WA 41 and WA 42 and WA 51 and WA 52 of the two crossing switch parts 4 and 5. If the switches of both switch parts 4 and 5 are in the plus position, the contacts LP 4 and LP 5 of the associated point position monitor for the plus position closed. If a route running over the switch 3 and the track B 1 is set, the contacts SP 41 and SP 51 of the route setting relays are closed for the positive position. When traveling from right to left, the Auflösereiais WA 52 responds when the contact BF 11 is closed when the track section B 1 is occupied. When the switch section is then occupied, the contacts WF51 and WF41 are closed at the same time when the track relay 45 drops out. In this case, the release relay WA 41 responds via the contacts WF 51 and WA 523, which closes the contact WA 413, which switches on the response winding A of the release relay WA 31 of the following section 3. If the circuit points a 4 and h 4 were connected by a short-circuit bridge as in the circuit according to FIG. 1, the second release relay WA 51 of the crossover switch part 5 would also respond; the response of this release relay would therefore be independent of the occupation of the following section. In contrast, in the circuit shown here, the second release relay WA 42 of the crossing switch part 4 only responds when the contact WF31 is closed when the switch 3 is occupied. Correspondingly, in the opposite direction of travel and with electrically connected switching points aa 5 and b 5, the release relay WA 41 would respond when the switch section is occupied, whereas the release relay WA 52 would only respond when the track B 1 is occupied.

In order to achieve the same operational sequence of the circuit as with individually isolated crossing switch parts, a contact bridge with a normally open contact WA 426 or WA 526 of that release relay WA 42 is, according to a partial feature of the invention, between the switching points a 4 and b 4 or a 5 and b 5 or WA 52 , which is switched on when the track section immediately adjacent to the relevant crossing switch part (switch 3 or track B 1) is occupied. These contacts WA 426 and WA 526 only switch the contacts WA 413 and WA 423 or WA 513 and WA 523 in parallel when the immediately adjacent section is occupied. In this way, on the one hand, the premature response of the second release relay of the other crossing switch part is prevented when the switch is occupied and, on the other hand, it ensures that when the crossing switch is occupied, the second release relay of the previous section, e.g. B. when driving from lxnksnach right the release relay WA 31 of the wimp is switched on. In addition, the contacts WA 426 and WA 526 avoids the otherwise existing risk that when the section B 1 or 3 is occupied by a temporary short circuit of the crossing switch section or when the crossing switch is occupied by a temporary reactivation of the track relay, e.g. B. in the case of insufficient axle short-circuit of a rail bus, an early termination takes place.

Fig. 9 shows an arrangement in which more than two switches, e.g. B. the three switches 6, 7 and 8, lie in a common isolated section, which is adjacent to the isolated switch sections 9 and 10 with associated release relays WA 91 and WA 101 (Fig. 10).

The subcircuits shown in FIG. 10 for the switches 6 and 8 located at the ends of the common section are constructed in the same way as the subcircuits according to FIG. 8; Between the switching points a 6 and b 6 or a 8 and b 8 , a contact bridge with a contact WA 616 or WA 826 of that release relay WA 61 or WA 82 is arranged that when the immediately adjacent section 10 or 9 is occupied a contact WF101 or WF91 of the corresponding vacancy signal relay is switched on. In contrast, in the subcircuit for the switch 7, neither a short-circuit bridge nor a contact bridge is arranged between the switching points a7 and b7. The working contacts WA 713 and WA 723 are therefore only connected in parallel with one pole. Each of these contacts is arranged in the circuit of the corresponding release relay of the neighboring switch, which should respond first in a certain direction of travel.

If a route is set from section 9 via the three switches 8, 7 and 6 to section 10, then in addition to contacts LP 6 to LP 8 , contacts SP 61 to SP 81 are also closed. If a train travels from section 9 to section 10, the first release relay WA 82 of switch 8 is switched on when section 9 is occupied with contact WF91. If the common section of switches 6 to 8 is occupied, contacts WF61 to WF81 are closed at the same time. The release relay WA 91 of the previous section and the first release relay WA 72 of the switch 7 respond via the contacts WF 81, WA 823, WA 826 and SP 81 or WF 81, WA 823 and LP 7. Then, via the contacts WF71, WA 723 and LP 6, first the release relay WA 62 of the switch 6 corresponding to the relay WA 72 and then the release relay WA 101 of the section 10 via the contacts WF 61 and WA 623. In the sub-circuit unit of each of the switches 6 to 8, only one release relay is now switched on, namely the relay that would respond in this direction of travel and with individual isolation of each switch if the previous section is occupied. If the section 10 is occupied, the release relay WA 61 responds via the contact WF 101, which switches on the release relay WA71 with its contacts WA 613 and WA 616 via the closed contact SP61, when it responds with the contact WA 713 via the also closed Contact SP71 the release relay WA 81 is switched on. The second release relays of points 6 to 8 respond in a chain-like manner when the next section is occupied.

Are there more than three within a common insulating section Switches, e.g. B. another switch between the switches 7 and 8, so is the Sub-circuit unit of this switch constructed in the same way as for the switch 7; So there is neither a short-circuit bridge between the associated circuit points a and b still arranged a contact bridge.

To the sub-circuit units optionally for turnouts with their own isolated To be able to use sections or with a common isolated section, it is advisable to use the short-circuit or contact bridges between the circuit points to make a and b easily interchangeable, e.g. B. by means of plug connections.

The circuit arrangements described so far can be supplemented for interlockings with train and shunting routes in such a way that shunting routes are also resolved when a shunting department clears the last section of points not by driving on, but by driving back. In this case the second release relay would not be able to respond. In order to achieve this anyway, the circuit of the holding circuits of the release relay according to FIG. 2 is supplemented by the contact ZF, shown in broken lines, of a train route fixing relay or a similar relay assigned to the switch 1. This contact ZF only opens the line connection between the holding windings H of the release relays WA 11 and WA 12 when a train route is established via the switch 1. In the case of shunting routes, the ZF contact remains closed, so that when the winding H of one of the two release relays is switched on (contact WF 12 closes), the winding H of the second release relay is also switched on. The second release relay responds via this winding. The route setting relays SP1 and SM 1 (Fig. 3) are reset when clearing the switch section. The locking relay WV1 is also reset when clearing this switch section or when clearing the adjacent section, depending on the circuit selected. If the circuit is supplemented by the contact ZF, which only opens when the train routes are set, the route setting and locking relays of the points can be reset without the involvement of the section following in the original direction of travel. In the case of shunting routes, in contrast to train routes, the resolution is independent of the direction of travel.

Except for interlockings with only one locking relay for each turnout the circuit can also be used for Signal boxes are used where each switch has several locking relays or a locking relay and a locking relay assigned.

Furthermore, the invention can also be used in interlockings, in where there are no isolated rails for track vacancy detection, but other known means, z. B. rail contacts, axle counters, traction detectors or the like. Are provided.

Claims (9)

PATENT CLAIMS: 1. Circuit arrangement for the individual release of the locks of turnouts in electrical interlockings, in which the turnouts are assigned route setting relays and route locking relays and for each turnout two release relays that act in both directions are arranged, which together with a contact of the track clearance relay of the turnout section, the release relays of adjacent ones Controlling points, characterized in that a common contact (WF11, Fig. 1; WF41, Fig. 8; WF71, Fig. 10) of the track vacancy relay is used to control the release relay of the adjacent points connected to the tip and the branching lines of a point Switch section is provided with which in series of the release relays (WA 11 and WA 12, Fig. 1; WA 41 and WA 42, Fig. 8; WA 71 and WA 72, Fig. 10) this switch is controlled input-side parallel-connected normally open contacts ( WA 113 and WA 123, Fig. 1; WA 413 and WA 423, Fig. 8; WA 723 and WA 724, Fig. 10) arranged si nd, the output sides of which are either permanently connected to one another (Fig. 1) or via a normally open contact (WA 426) of one of the two release relays (WA 42) connected to each other (Fig. 8) or not connected to each other (Fig. 10), depending on whether both, only one or none of the adjacent points in lie in a separate monitoring section. 2. Circuit arrangement according to claim 1 for points monitoring sections with two points, characterized in that to control the normally open contact (WA 426, Fig. 8) in the connecting line for the output sides of the input-side connected release relay contacts (WA 413 and WA 423) that when occupying the the switch (4) adjacent neighboring section connected release relay (WA 42) is provided. 3. Circuit arrangement according to claim 1 for the points not lying at the ends of the point monitoring section with more than two points, characterized in that the contact (z. B. WA 723, Fig. 10) of the in a certain direction of travel (z. B. B. . From right to left) first switched on release relay (WA 72) of a switch (7) is provided for switching off the corresponding release relay (WA 62) of the following switch (6). 4. Circuit arrangement according to claim 1, characterized in that both release relays (WA 11 and WA 12) of the switch section (1) apart from a response winding (A) a holding winding (H) with a self-holding contact in series (WA 111 or WA 121) and the holding windings of both relays are connected in parallel to a circuit that is prepared when a route is set over the turnout by a contact (SP 13 or SM 13) of the respective actuated route setting relay (SP 1 or SM 1) when the turnout is occupied closed by a contact (WF12) controlled by the vacancy signal relay and after opening this contact when clearing the turnout, additional self-holding contacts (WA 112 and WA 122) of the two release relays in series remain in place until the route setting relay is reset. 5. Circuit arrangement according to claim 1 and 4, characterized in that there is a line connection between the holding windings (H) of the two release relays ( WA 11 and WA 12) , which only with a fixed train route over the switch through a contact (ZF) of another relay (e.g. a train route setting relay) is opened. 6. Circuit arrangement according to claim 1, in which the switching circuits of the release relay are connected by a circuit simulated by the track system and in the lines associated with the plus or minus leg of the switch, dependent contacts are arranged, characterized in that in the of the clearance relay of the Switch section (1) dependent switch-on circuits of the release relay (WA 32) of the sections (2 and 3) adjacent to the plus or minus branch of the route control relay (SP1 or SM1) controlled contacts (SP11 and SM 11), on the other hand in the contacts (SP11 and SM 11) controlled by the Free signal relays of the neighboring sections dependent connection circuits of the own release relay (WA 12) of signal relays for the switch position controlled contacts (LP 1 and LM 1) are arranged. 7. Circuit arrangement according to claim 1, characterized in that the connection circuits of the release relay of adjacent sections are connected in a known manner via lines with plug contacts (s 1, s 2, p 1, p 2, m 1 and m 2, Fig. 6). B. Circuit arrangement according to Claim 1, characterized in that the reset circuit of the locking relay (WV 1) is used to check the basic position (contacts SP14, SM14 and WV 11 closed) of the route setting relays (SP1 or SM 1) and the clearing of the neighboring sections (contacts WA 115 and WA 125 closed) is provided. 9. Circuit arrangement according to claim 1, characterized by a gradual resetting of the route setting and -verschlußrelais (SP 1 or SM1 and WV1) of the points in such a way that the route setting relay (SP1 or SM1) when clearing its own switch section (1) and the Route locking relay (WV 1 ) must be reset when clearing the following turnout section (e.g. 3). Considered publications: German Patent Nos. 891400, 909 351, 918 394, 939 937, 940 992, 943 890, 945 158, 955 063; German interpretative document No. 1030 860.