A one-way operating device for rail transit

Abstract

The application discloses a one-way operating device for rail transit, which comprises a speed reducer, a stop seat, a pearl collision, an outer stop sleeve and a one-way bearing are arranged on the input end of the speed reducer; the one-way bearing, an inner stop sleeve and an access sleeve are connected; the one-way bearing is connected with an outer key and an inner key; the access sleeve, a U-shaped shift fork, a connecting rod and an operating handle are sequentially connected; the end of the connecting rod is provided with a plum-blossom bolt. The one-way operating device has simple structure, convenient operation, small influence on the existing emergency evacuation door, high safety, high forward power transmission efficiency of the input end of the speed reducer, prevention of reverse power transmission clamping and laboring, prevention of misoperation, stable, firm, labor-saving and rapid forward power transmission, switching to reverse power transmission, and other requirements.

Description

Technical Field

[0001] This invention relates to the field of rail vehicle door systems, and more particularly to a one-way operating device for rail transit. Background Technology

[0002] Rail transit trains are equipped with emergency evacuation door escape systems; however, existing emergency evacuation door escape systems are prone to malfunction. Directly adding complex anti-malfunction devices would significantly impact the emergency evacuation doors and compromise the safety of the equipment.

[0003] Therefore, it is necessary to develop new devices to prevent misoperation, using a simple structure to achieve the purpose of preventing misoperation, with minimal impact on emergency evacuation doors. Summary of the Invention

[0004] Purpose of the invention: To address the shortcomings and defects of existing technologies, this invention provides a one-way operating device for rail transit. It has a simple structure, is easy to operate, has minimal impact on existing emergency evacuation doors, and offers high safety. It can meet the requirements of high forward force transmission efficiency at the input end of the reducer and the difficulty of reverse force transmission, thus preventing misoperation. It also meets the requirements of stable, secure, labor-saving, and rapid forward force transmission, and the difficulty and difficulty of reverse force transmission.

[0005] Technical solution: The present invention provides a one-way operating device for rail transit, characterized in that: it includes a reducer, the input end of which is provided with a stop seat, a ball bearing, an outer stop sleeve and a one-way bearing; the one-way bearing and the inner stop sleeve are connected to an access sleeve, and the one-way bearing is connected to an outer key and an inner key; the access sleeve, the U-shaped shift fork, the connecting rod and the operating handle are connected in sequence; the end of the connecting rod is provided with a star bolt.

[0006] The access sleeve is secured with bolts.

[0007] The bolt is equipped with a spring washer and a large washer.

[0008] When in use, the operating handle is folded in standby mode, and when working, the operating handle is placed in the vertical position.

[0009] In use, rotate the operating handle forward to rotate the connecting rod, which in turn rotates the U-shaped shift fork forward. After the side of the U-shaped shift fork touches the side boss of the connecting sleeve, it pushes the connecting sleeve to rotate forward, which in turn pushes the inner stop sleeve and the inner ring of the one-way bearing to rotate simultaneously. Through the inner key, the torque is transmitted to the input end of the reducer, thus completing the torque input.

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

[0011] In use, the outer stop sleeve is rotated via the external key. The ball bearing on the stop seat provides spring pressure, generating rotational resistance that prevents the outer stop sleeve from rotating, thereby preventing the one-way bearing from rotating and ultimately preventing the operating handle from rotating in the opposite direction. If the spring pressure of the ball bearing is increased, the one-way operating device can prevent the operating handle from rotating in the opposite direction, thus preventing the torque generated by the operating handle rotating in the opposite direction from being input into the reducer.

[0012] The speed reducer is located on the rail vehicle door system.

[0013] Beneficial Effects: Compared with existing technologies, this invention has the following significant advantages: This invention achieves unidirectional operation at the input end of the reducer, while reverse operation is laborious but not prohibited, thus preventing misoperation. Through the characteristics of the unidirectional bearing and ball bearing, forward operation is efficient and stable, while reverse operation is laborious but not prohibited; the reverse operation force is adjustable; and switching between forward and reverse directions is quick and effortless. After removing the Torx bolts, the handle can be removed, and the connecting rod port can be connected to other recycling tools, enabling multiple operating methods. Attached Figure Description

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

[0015] Figure 2 This is a schematic cross-sectional view of the present invention in standby mode;

[0016] Figure 3 This is a schematic diagram of the structure in the manual working state of the present invention;

[0017] Figure 4 This is a cross-sectional structural diagram of the present invention in its manual operating state;

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

[0019] In the diagram, 1 is the speed reducer; 2 is the stop seat; 3 is the ball bearing; 4 is the outer stop sleeve; 5 is the one-way bearing; 6 is the outer key; 7 is the inner key; 8 is the inner stop sleeve; 9 is the connecting sleeve; 10 is the bolt; 11 is the spring washer; 12 is the large washer; 13 is the U-shaped shift fork; 14 is the connecting rod; 15 is the Torx bolt; and 16 is the operating handle. Detailed Implementation

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] The present invention relates to a one-way operating device for rail transit, comprising a reducer 1. The input end of the reducer 1 is provided with a stop seat 2, a ball bearing 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; the one-way bearing 5 is also connected to an outer key 6 and an inner key 7. The access sleeve 9, a U-shaped fork 13, a connecting rod 14, and an operating handle 16 are sequentially connected; a star bolt 15 is provided at the end of the connecting rod 14. The access sleeve 9 is fixed by bolts 10. A spring washer 11 and a large washer 12 are provided at the bolt 10.

[0022] In use, the operating handle 16 is folded in standby mode. When needed, the operating handle 16 is placed in a vertical position. Rotating the operating handle 16 forward causes the connecting rod 14 to rotate, which in turn causes the U-shaped shift fork 13 to rotate forward. After the side of the U-shaped shift fork 13 touches the side boss of the connecting sleeve 9, it pushes the connecting sleeve 9 to rotate forward, which in turn pushes the inner stop sleeve 8 and the inner ring of the one-way bearing 5 to rotate simultaneously. Through the inner key 7, the torque is transmitted to the input end of the reducer 1, completing the torque input.

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

[0024] The speed reducer of this invention is located on the door system of a rail vehicle. The operating handle can be replaced with other types of power tools to enable power tool access operation. This invention features a one-way operating device at the input end of the speed reducer. Through the unique function of the one-way bearing and ball bearing, it ensures that during rotational operation, forward operation is easy and the connection is firm and stable; while reverse operation is difficult and requires considerable effort. Furthermore, switching between forward and reverse operation is effortless and rapid.

[0025] This invention achieves unidirectional operation at the input end of the reducer, and the reverse operation is difficult but not prohibited, thus preventing misoperation. It eliminates the risk of reverse operation and achieves adjustable damping for reverse operation. It has a novel structure, large load-bearing capacity, high reliability, and simple operation. It has little impact on existing emergency evacuation doors and high safety.

Claims

1. A one-way operating device for rail transit, characterized in that: Includes a speed reducer (1), the input end of which is provided with a stop seat (2), a ball bearing (3), an outer stop sleeve (4) and a one-way bearing (5); the one-way bearing (5) is connected to the inner stop sleeve (8), the inner stop sleeve (8) is connected to the access sleeve (9), and the one-way bearing (5) is connected to the outer key (6) and the inner key (7); the access sleeve (9), the U-shaped shift fork (13), the connecting rod (14) and the operating handle (16) are connected in sequence; the end of the connecting rod (14) is provided with a plum bolt (15). When in use, rotate the operating handle (16) in the forward direction to drive the connecting rod (14) to rotate, which in turn drives the U-shaped shift fork (13) to rotate in the forward direction. After the side of the U-shaped shift fork (13) touches the side boss of the access sleeve (9), it pushes the access sleeve (9) to rotate in the forward direction, which pushes the inner stop sleeve (8) and the inner ring of the one-way bearing (5) to rotate simultaneously. Through the inner key (7), the torque is transmitted to the input end of the reducer (1) to complete the torque input. Reverse rotation of the operating handle (16) causes the connecting rod (14) to rotate in the opposite direction, which in turn causes the U-shaped fork (13) to rotate in the opposite 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 opposite direction, which in turn pushes the inner stop sleeve (8) and the inner ring of the one-way bearing (5) to rotate in the opposite direction at the same time. The outer key (6) pushes the outer stop sleeve (4) to rotate. The ball (3) on the stop seat (2) provides spring pressure, generating rotational resistance, which blocks 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).

2. The one-way operating device for rail transit according to claim 1, characterized in that: The access sleeve (9) is fixed to the inner stop sleeve (8) 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, the operating handle (16) is folded in standby mode, and when working, the operating handle (16) is placed in the vertical position.

5. The one-way operating device for rail transit according to claim 1, characterized in that: When in use, if the spring pressure of the 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).

6. The one-way operating device for rail transit according to any one of claims 1-5, characterized in that: The speed reducer (1) is located on the rail vehicle door system.

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