One-way operation device for rail transit

Abstract

The invention discloses a one-way operation device for rail transit. The one-way operation device comprises a speed reducer, and a stop seat, a collision bead, an outer stop sleeve and a one-way bearing are arranged at the input end of the speed reducer; the one-way bearing and the inner stop sleeve are connected with the access sleeve, and the one-way bearing is connected with the outer key and the inner key; the connecting sleeve, the U-shaped shifting fork, the connecting rod and the operating handle are connected in sequence; and a plum bolt is arranged at the end part of the connecting rod. The anti-misoperation device is simple in structure, convenient to operate, small in influence on an existing emergency evacuation door, high in safety and capable of meeting the anti-misoperation effect that the forward force transmission efficiency of the input end of the speed reducer is high, and reverse force transmission is stuck and strenuous; the requirements that forward force transmission is stable, firm, labor-saving and rapid, and force transmission is strenuous and blocked when the reverse direction is switched are met.

Description

Technical Field

[0001] The invention relates to the field of rail vehicle door systems, and in particular to a one-way operating device for rail transportation. Background Art

[0002] Rail transit trains are equipped with emergency door escape systems, but the emergency door escape systems of the prior art have the risk of misoperation. If a device with a complex structure to prevent misoperation is directly added, the emergency door will have a greater impact on the safety of the equipment.

[0003] Therefore, it is necessary to develop a new type of device to prevent misoperation in a targeted manner, adopt a simple structure to achieve the purpose of preventing misoperation, and have little impact on the emergency evacuation door. Summary of the invention

[0004] Purpose of the invention: In view of the shortcomings and defects of the prior art, the present invention provides a one-way operating device for rail transit, which has a simple structure, is easy to operate, has little impact on the existing emergency evacuation doors, and is highly safe. It can meet the requirements of high efficiency in forward force transmission at the input end of the reducer, and the effect of preventing misoperation caused by stuck and laborious reverse force transmission; it meets the requirements of stable, firm, labor-saving, and rapid forward force transmission, and labor-intensive and stuck force transmission when switching to the reverse direction.

[0005] Technical solution: A one-way operating device for rail transit of the present invention is characterized in that it includes a reducer, and the input end of the reducer is provided with a stop seat, a bumper, an external stop sleeve and a one-way bearing; the one-way bearing and the internal stop sleeve are connected with the access sleeve, and the one-way bearing is connected with the external key and the internal key; the access sleeve, the U-shaped fork, the connecting rod and the operating handle are connected in sequence; the end of the connecting rod is provided with a plum blossom bolt.

[0006] The access sleeve is fixed by bolts.

[0007] The bolts are provided with spring washers and large washers.

[0008] When in use, in standby mode, the operating handle is in a folded state, and when it needs to work, the operating handle is placed in a vertical state.

[0009] When in use, rotate the operating handle forward to drive the connecting rod to rotate, which in turn drives the U-shaped fork to rotate forward. After the side of the U-shaped fork touches the side boss of the access sleeve, it pushes the access sleeve to rotate forward, and pushes the inner stop sleeve and the inner ring of the one-way bearing to rotate at the same time, and transmits the torque to the input end of the reducer through the inner key to complete the torque input.

[0010] When in use, the operating handle is rotated in the reverse direction to drive the connecting rod to rotate in the reverse direction, which in turn drives the U-shaped fork to rotate in the reverse direction. After the other side of the U-shaped fork touches the side boss of the access sleeve, it pushes the access sleeve to rotate in the reverse direction, and pushes the inner stop sleeve and the inner ring of the one-way bearing to rotate in the reverse direction at the same time.

[0011] When in use, the outer stop sleeve is pushed to rotate through the outer key, and the bump ball on the stop seat provides spring pressure to generate rotation resistance, blocking the rotation of the outer stop sleeve, thereby blocking the rotation of the one-way bearing, and finally blocking the reverse rotation of the operating handle. If the spring pressure of tightening the bump ball is increased, the one-way operating device can prevent the reverse rotation of the operating handle, preventing the torque generated by the reverse rotation of the operating handle from being input into the reducer.

[0012] Wherein, the reducer is located on the rail vehicle door system.

[0013] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The present invention realizes the one-way operation of the reducer input end, and the reverse operation is stuck and laborious but not prohibited to prevent misoperation. Through the characteristics of the one-way bearing and the bumper, the forward operation can be efficient and stable, and the reverse operation is laborious but not prohibited. The reverse operation force can be adjusted; the forward and reverse switching is fast and labor-saving. After the plum blossom bolt is removed, the handle is removed, and the connecting rod port is connected to other recovery tools to realize multiple operation modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the standby state of the present invention;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of the standby state of the present invention;

[0016] Figure 3 It is a structural schematic diagram of the manual working state of the present invention;

[0017] Figure 4 It is a schematic cross-sectional structure diagram of the manual working state of the present invention;

[0018] Figure 5 It is a structural schematic diagram of the interface state of the present invention;

[0019] In the figure, 1 is a reducer; 2 is a stop seat; 3 is a bumper; 4 is an external stop sleeve; 5 is a one-way bearing; 6 is an external key; 7 is an internal key; 8 is an internal stop sleeve; 9 is an access sleeve; 10 is a bolt; 11 is a spring washer; 12 is a large gasket; 13 is a U-shaped fork; 14 is a connecting rod; 15 is a plum bolt; and 16 is an operating handle. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0021] The one-way operating device for rail transit of the present invention comprises a reducer 1, wherein the input end of the reducer 1 is provided with a stop seat 2, a bumper 3, an outer stop sleeve 4 and a one-way bearing 5; the one-way bearing 5, the inner stop sleeve 8 are connected with an access sleeve 9, and the one-way bearing 5 is connected with an outer key 6 and an inner key 7; the access sleeve 9, the U-shaped fork 13, the connecting rod 14 and the operating handle 16 are connected in sequence; and a plum bolt 15 is provided at the end of the connecting rod 14. The access sleeve 9 is fixed by a bolt 10. A spring washer 11 and a large gasket 12 are provided at the bolt 10.

[0022] When in use, in the standby state, the operating handle 16 is in a folded state, and when it is needed to work, the operating handle 16 is placed in a vertical state. The operating handle 16 is rotated forward to drive the connecting rod 14 to rotate, and the U-shaped fork 13 is driven to rotate forward. After the side of the U-shaped fork 13 touches the side boss of the access sleeve 9, it pushes the access sleeve 9 to rotate forward, and pushes the inner stop sleeve 8 and the inner ring of the one-way bearing 5 to rotate at the same time, and transmits the torque to the input end of the reducer 1 through the inner key 7 to complete the torque input.

[0023] The reverse rotation of the operating handle 16 drives the connecting rod 14 to rotate in the reverse direction, which in turn drives the U-shaped fork 13 to rotate in the reverse direction. After the other side of the U-shaped fork 13 touches the side boss of the access sleeve 9, it pushes the access sleeve 9 to rotate in the reverse direction, and pushes the inner stop sleeve 8 and the inner ring of the one-way bearing 5 to rotate in the reverse direction at the same time. Through the external key 6, the outer stop sleeve 4 is pushed to rotate, and the bumping ball 3 on the stop seat 2 provides spring pressure to generate rotation resistance, blocking the rotation of the outer stop sleeve 4, thereby blocking the rotation of the one-way bearing 5, and finally blocking the reverse rotation of the operating handle 16. If the spring pressure of tightening the bumping ball 3 is increased, the one-way operating device can prevent the reverse rotation of the operating handle 16, and prevent the torque generated by the reverse rotation of the operating handle 16 from being input into the reducer 1.

[0024] The reducer of the present invention is located on the rail vehicle door system. The operating handle can be replaced with other types of electric tools to achieve the access operation of the electric tools. The present invention sets a one-way operating device at the input end of the reducer. By using the unique functions of the one-way bearing and the bumper, it is determined that during the rotation operation, the forward operating force is easy and the connection is firm and stable; the reverse operation has the effect of jamming and laborious, and the forward and reverse operation switching is labor-saving and rapid.

[0025] The present invention realizes one-way operation of the reducer input end, and the reverse operation is stuck and laborious but not prohibited to prevent misoperation; eliminates the risk of reverse operation and realizes adjustable damping of reverse operation; has novel structure, large load-bearing capacity, strong reliability and simple operation; has little impact on existing emergency evacuation doors and has high safety.

Claims

1. A one-way operating device for rail transit, characterized in that: The invention comprises a reducer (1), wherein the input end of the reducer (1) is provided with a stop seat (2), a bumper (3), an outer stop sleeve (4) and a one-way bearing (5); the one-way bearing (5), the inner stop sleeve (8) and the access sleeve (9) are connected, and the one-way bearing (5) is connected with an outer key (6) and an inner key (7); the access sleeve (9), a U-shaped shift fork (13), a connecting rod (14) and an operating handle (16) are connected in sequence; and a plum bolt (15) is provided at the end of the connecting rod (14).

2. The one-way operating device for rail transit according to claim 1, characterized in that: The access sleeve (9) is fixed by bolts (10).

3. The one-way operating device for rail transit according to claim 2, characterized in that: The bolt (10) is provided with a spring washer (11) and a large washer (12).

4. The one-way operating device for rail transit according to claim 1, characterized in that: When in use, in the standby state, the operating handle (16) is in a folded state, and when work is required, the operating handle (16) is placed in a vertical state.

5. The one-way operating device for rail transit according to claim 4, characterized in that: When in use, the operating handle (16) is rotated in the forward direction, driving the connecting rod (14) to rotate, thereby driving the U-shaped fork (13) to rotate in the forward direction. After the side of the U-shaped fork (13) touches the side boss of the access sleeve (9), the access sleeve (9) is pushed to rotate in the forward direction, and the inner stop sleeve (8) and the inner ring of the one-way bearing (5) are pushed to rotate at the same time, and the torque is transmitted to the input end of the reducer (1) through the inner key (7), thereby completing the torque input.

6. The one-way operating device for rail transit according to claim 5, characterized in that: When in use, the operating handle (16) is rotated in the reverse direction, driving the connecting rod (14) to rotate in the reverse direction, thereby driving the U-shaped fork (13) to rotate in the reverse direction. After the other side of the U-shaped fork (13) touches the side boss of the access sleeve (9), the access sleeve (9) is pushed to rotate in the reverse direction, and the inner stop sleeve (8) and the inner ring of the one-way bearing (5) are pushed to rotate in the reverse direction at the same time.

7. The one-way operating device for rail transit according to claim 6, characterized in that: When in use, the outer stop sleeve (4) is pushed to rotate through the outer key (6), and the bump ball (3) on the stop seat (2) provides spring pressure to generate rotation resistance, blocking the rotation of the outer stop sleeve (4), thereby blocking the rotation of the one-way bearing (5), and finally blocking the reverse rotation of the operating handle (16).

8. The one-way operating device for rail transit according to claim 7, characterized in that: When in use, if the spring pressure of the screw-tightening ball (3) is increased, the one-way operating device can prevent the reverse rotation of the operating handle (16), thereby preventing the torque generated by the reverse rotation of the operating handle (16) from being input into the reducer (1).

9. The one-way operating device for rail transit according to any one of claims 1 to 8, characterized in that: The reducer (1) is located on the rail vehicle door system.

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