Mechanical isolation unlocking device

Abstract

The utility model discloses a mechanical isolation unlocking device. A square shaft is sequentially provided with an operation support, a wire drawing disc, a check block, a connecting cam, a first isolation rotating disc and a rotating shaft. A pin is installed on the check block and moves in a groove in the inner side of the wire drawing disc. The device has the characteristics of high isolation strength, simple structure, small size, good reliability and high safety; the method is used for isolation when the turnover pedal of the rail transit train breaks down, and continuous operation of the train is not affected when service quits.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rail transit train turnover pedal, especially a mechanical isolation unlocking device. BACKGROUND

[0002] The turnover pedal is a commonly used component of the rail transit train, and the existing mechanical isolation unlocking device of the turnover pedal has the following problems: 1. The structure is complex, and the failure rate is high. Due to structural defects, the latch tongue is prone to jamming, and the motor is prone to failure, which affects the normal operation of the train and the safety of passengers; 2. The operation is complex, and the operation process is cumbersome, which increases the operation difficulty and error risk of the staff, and the adaptability is not strong; 3. The maintenance cost is high, and regular inspection and maintenance are required to ensure the normal operation of the device, which increases the burden and cost of maintenance work.

[0003] Therefore, it is necessary to develop a new type of mechanical isolation unlocking device to simplify the structure, facilitate maintenance, and facilitate operation. UTILITY MODEL CONTENT

[0004] The utility model discloses a mechanical isolation unlocking device, which has the characteristics of high isolation strength, simple structure, small size, good reliability and high safety; and is used for isolating the rail transit train turnover pedal when a fault occurs, and does not affect the continued operation of the vehicle when the service is withdrawn.

[0005] Technical scheme: The utility model discloses a mechanical isolation unlocking device, which is characterized by comprising a square shaft, an operation support, a pulley, a stop block, a connecting cam, an isolation turntable one and a rotating shaft are sequentially arranged on the square shaft; a pin is installed on the stop block, and the pin moves in the groove on the inner side of the pulley.

[0006] Among them, the steel wire rope on the pulley is connected with the mechanical latch through a steering wheel.

[0007] Among them, the mechanical latch corresponds to the locking turntable on the transmission shaft.

[0008] Among them, the transmission shaft is provided with an isolation turntable two.

[0009] Among them, the isolation turntable two corresponds to the isolation turntable one.

[0010] Among them, the end of the square shaft is a square structure, and the square shaft is operated by a four-corner key.

[0011] Among them, the square shaft is arranged on the turnover pedal of the rail transit train through the operation support.

[0012] Beneficial effects: compared with the prior art, the utility model has following outstanding advantages: the utility model discloses a pivot, a guyed disc, a connecting cam and an isolation turntable are used to control three states of the turnover pedal, the guyed disc can realize the emergency unlocking state, the pivot and the connecting cam can realize isolation, and the operation is convenient.The utility model has simple structure, and it is favorable for improving production efficiency, reducing cost, and low assembling difficulty, and convenient installation arrangement;Meanwhile, it has high isolation strength for isolation, does not affect the vehicle to continue operation;Simple operation, higher efficiency, more sensitive reaction, favorable for the operation of the attendant, and guaranteeing the life safety of the passenger. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic diagram of the utility model;

[0014] Figure 2 It is the structure schematic diagram of the isolation state of the utility model Figure One ;

[0015] Figure 3 It is the structure schematic diagram of the isolation state of the utility model Figure Two ;

[0016] Figure 4 It is the structure schematic diagram of the emergency unlocking state of the utility model Figure One ;

[0017] Figure 5 It is the structure schematic diagram of the emergency unlocking state of the utility model Figure Two ;

[0018] Figure 6 It is the structure schematic diagram of the emergency unlocking state of the utility model Figure Three ;

[0019] Fig. 1 is an operating support;2 is a square shaft;3 is a guyed disc;4 is a stop block;5 is a connecting cam;6 is an isolation turntable one;7 is a pivot;8 is a pin;9 is a locking turntable;10 is a transmission shaft;11 is a mechanical lock tongue;12 is a steel wire rope;13 is a steering wheel;14 is an isolation turntable two. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be further described below in combination with the drawings and specific embodiments.

[0021] The utility model discloses a mechanical isolation unlocking device, including square shaft 2, square shaft 2 is equipped with operation support 1, pull line disc 3, stopper 4, connecting cam 5, isolation turntable no. 6 and pivot 7 in proper order, the pin 8 is installed on stopper 4, and the pin 8 moves in the slot of pull line disc 3 inside.

[0022] As Figure 1 , 2 , 3, in default state, when square shaft 2 is twisted to the locking state by counterclockwise rotation 90 degrees, connecting cam 5 is rotated 90 degrees counterclockwise under the action of square shaft 2, and the pin 8 is rotated 90 degrees in the slot of pull line disc 3, pull line disc 3 is fixed, and square shaft 2 drives isolation lock pivot 7 to rotate 90 degrees counterclockwise, so that isolation turntable moves to the lower side, the pedal driving shaft 10 is blocked, the pedal driving shaft 10 cannot move, and the pedal is in the isolation state at this time.

[0023] As Figure 1 , 4 , 5, 6, in default state, when square shaft 2 is twisted to the emergency unlocking state by clockwise rotation 90 degrees, connecting cam 5 is rotated 90 degrees clockwise under the action of square shaft 2, the pin 8 drives pull line disc 3 to rotate 90 degrees clockwise, the steel wire rope 12 moves upwards, the mechanical lock tongue 11 is lifted, the locking turntable 9 on the pedal driving shaft 10 is not limited to move, so that the emergency unlocking state is realized.

[0024] Specifically, as Figure 1 : the isolation device is in the default state. Square shaft 2 points to the default state (as shown in the figure, the direction of square shaft gap), at this time, pull line disc 3, stopper 4, connecting cam 5, isolation turntable no. 6 are all in the default position, do not move, and will not affect the free movement of the lower flip pedal driving shaft 10, at this time, the flip pedal is in the default state, and can be electrically operated.

[0025] As Figure 2 , 3, the isolation device is in the isolation state, the square shaft 2 points to the isolation state (as shown in the square shaft gap direction), at this time, the pull wire disc 3 does not move, the pin 8 installed on the stopper 4 moves in the groove inside the pull wire disc 3, so that the pull wire disc 3 does not move; the rotation of the square shaft 2 drives the movement of the connecting cam 5 and the rotating shaft 7, the boss on the connecting cam 5 will rotate to the lower side, and block the isolation turntable two 14 on the turnover pedal transmission shaft 10, at this time, the turnover pedal transmission shaft 10 cannot move freely, so that the isolation function is realized.

[0026] As Figure 4 , 5 , 6, in the default state, when the square shaft 2 is twisted to the emergency unlocking state by rotating 90 degrees clockwise, the connecting cam 5 rotates 90 degrees clockwise under the action of the square shaft 2, the isolation turntable one 6 rotates 90 degrees under the rotation of the rotating shaft 7, and the isolation turntable two 14 will not be limited to move; the pin 8 drives the pull wire disc 3 to rotate 90 degrees clockwise, the steel wire rope 12 moves upward on the steering wheel 13, and the mechanical lock tongue 11 is lifted, and the locking turntable 9 on the pedal transmission shaft 10 will not be limited to move, so that the emergency unlocking state is realized.

[0027] The utility model discloses a rotating shaft, a pull wire disc, a connecting cam and an isolation turntable are used for controlling three states of turnover pedal, adopt a pull wire disc to realize emergency unlocking state, adopt rotating shaft and connecting cam to realize isolation, convenient operation. The utility model discloses simple structure is favorable to the improvement production efficiency, reduces the cost, and the assembly difficulty is low, and the installation arrangement is convenient, simultaneously has higher isolation intensity to isolate, does not influence the vehicle to continue operating, and the operation is simple, and the efficiency is higher, and the reaction is more sensitive, and the operation of the attendant is favorable, and the passenger life safety is guaranteed.

Claims

1. A mechanical isolation unlocking device, characterized in that: It includes a square shaft (2), on which an operating bracket (1), a pull-line disc (3), a stop block (4), a connecting cam (5), an isolation turntable (6), and a rotating shaft (7) are arranged in sequence; a pin (8) is installed on the stop block (4), and the pin (8) moves in the groove inside the pull-line disc (3).

2. The mechanical isolation unlocking device according to claim 1, characterized in that: The wire rope (12) on the pull reel (3) is connected to the mechanical locking tongue (11) after passing through the steering wheel (13).

3. The mechanical isolation unlocking device according to claim 2, characterized in that: The mechanical locking tongue (11) corresponds to the locking turntable (9) on the transmission shaft (10).

4. The mechanical isolation unlocking device according to claim 3, characterized in that: The drive shaft (10) is provided with an isolation turntable (14).

5. The mechanical isolation unlocking device according to claim 4, characterized in that: The isolation turntable 2 (14) corresponds to the isolation turntable 1 (6).

6. The mechanical isolation unlocking device according to claim 1, characterized in that: The ends of the square shaft (2) are square structures, and the square shaft (2) is operated by four corner keys.

7. The mechanical isolation unlocking device according to claim 1, characterized in that: The square shaft (2) is mounted on the tilting pedal of the rail transit train via the operating bracket (1).

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