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Protection switch product introduction
To ensure the safety of trains and trains must be inserted in some station parts of the protection switch, by the approach to certain conditions to play a joint role in realizing the safety protection, the protection of the switch is not set in the arrangement of the approach, the arrangement of the approach must be carried out on the belt manipulation (or manual manipulation) and to be locked, by the circuit to check the position of its turnout (that is, the correct) and locked in the prescribed protection position, the arrangement of the approach to realize the complete approach locking and open signals. After the circuit checks the position of the turnout (indicating the correct position) and locks it in the specified protective position, the complete approach locking and opening signal can be realized. Protection of turnouts according to its use and different protection requirements, can be divided into the following cases:
with 6 ‰ downhill inlet (or not enough 6 ‰, but there are train braking difficulties in the inlet) the inlet inside the first group of turnouts designed for the protection of the turnouts, the protection of the turnouts can be opened to the positioning of the safety line, the special line, the line of refuge and so on.
with 6 ‰ down ramp continuation of the approach terminal, in order to prevent the train into the station braking less than rushed out of the outbound signal machine, into the other approach, there is also a protective turnout, the positioning of the protective turnout can be open to the safety line, dedicated line, the refuge line, the opposite of the inlet, down to the outbound exit, and so on. This fork is driven by the circuit.
with a 6 ‰ down ramp continuation of the approach terminal, can be equipped with a leveling protection fork, this fork maneuvering is not circuit-driven, but by manual manipulation, but this fork in the 6 ‰ pick up the car into the road is still checking its position, such a fork is generally in the outer display of the continuation of the road into the terminal, the positioning of the opening of the same with the display of the continuation of the road, (outside the display of the continuation of the road into the road for the pick up of the car into the road only to see the light belt and signals, do not see the continuation of the road into the road with the light belt).zmwm14
In the connection with a dedicated line and often in the busy shunting operations shunting line, pull-out line in the access to the station line and the interface part of the main line. (The turnouts are designed as protection turnouts to avoid shunting trains from being transferred to the station line during shunting operation, and the protection turnouts are generally positioned to the dedicated safety line or shunting train pull-out line, travel line, etc.).
Two groups of double-acting turnouts through the cross-ferry line, designed for mutual inspection protection turnouts, one group in the reverse position when the other group must be protected in the positioning, the purpose is to avoid a group of turnouts in the reverse position, the other group of turnouts are also arranged in the reverse position into the road, resulting in the formation of cross-ferry line at the cross-ferry line of the "cross" collision, the other group of slippery cars in the cross-ferry line at the sidestroke process can be on, on, on, on, on the cross-ferry line of the cross-ferry line. In the process of sidestroke can be on, buffer sidestroke strength, reduce the loss of sidestroke.
| Number | Model | Gauge(mm) | Frog No. | Curve | Radius(m) | Total Weight(kg) |
| 1 | DK612-2-3 | 600 |
No.2 | 3 | 400 | 311 |
| 2 | DK612-3-6 | No.3 | 6 | 6100 | 515 | |
| 3 | DK612-4-12 | No.3 | 12 | 6800 | 573 | |
| 4 | DK612-5-15 | No.5 | 15 | 7400 | ||
| 5 | DK615B-2-3 | No.2 | 3 | 4000 | ||
| 6 | DK615B-3-6 | No.3 | 6 | 6100 | ||
| 7 | DK615B-4-12 | No.4 | 12 | 6800 | ||
| 8 | DK615B-5-15 | No.5 | 15 | 7400 |
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