Novel electric key device

Abstract

The utility model discloses a novel electric key device which comprises a panel, a fixing disc and a connecting plate which are sequentially connected through a plurality of countersunk screws, a gasket and a sealing ring are arranged between the panel and the fixing disc, a pin shaft, a torsion spring, a limiting plate and a connecting sleeve are arranged between the fixing disc and the connecting plate, and the connecting plate is connected with a switch. The panel, the gasket, the sealing ring, the fixing disc, the pin shaft, the torsional spring, the limiting plate, the connecting sleeve, the connecting plate and the switch are all connected with the rotating shaft. According to the utility model, a double-side limiting structure is adopted, so that the over-rotation phenomenon is prevented, and the switch is effectively protected; the tail end of the rotating shaft is locked by a nut, so that the rotating shaft is prevented from moving, the torsional spring clamping stagnation phenomenon is prevented, the reliability of the device is improved, and the operation failure rate is reduced; the occupied space in the vehicle width direction is small, the requirement for the vehicle body side vertical cover plate space is small, and cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit train field especially relates to a novel electric key device. BACKGROUND

[0002] The electric key device is used to open and close the important equipment of the driver's cab of the rail transit train, and the unlocking device used by the rail transit vehicle door is composed of a rotating shaft, an unlocking disc assembly, an external operating support and other components.

[0003] The principle of the existing electric key device is that the driver or the attendant uses the key to enter the rotating shaft, rotates the rotating shaft to drive the pull cord disc to rotate, the pull cord disc drives the external steel wire rope assembly to stretch, thereby triggering the unlocking switch assembly at the end of the mechanism to realize the door opening. However, the unlocking device manually uses the 10Nm torsion to operate the electric key to open and close the door, only has single side limiting, and the over-rotation phenomenon is easy to occur in the opening and closing, leading to the failure of the door opening function; after the switch is triggered, the carding phenomenon occurs, cannot be self-reset, and the internal transmission structure is complex, the parts are more, and the vehicle body space is large.

[0004] Therefore, it is necessary to develop a novel electric key device to overcome the above problems. UTILITY MODEL CONTENT

[0005] The utility model discloses a novel electric key device, has bilateral limiting structure, prevents appearing over-rotation phenomenon, effectively protects switch, the tail end of rotating shaft is locked with nut, prevents rotating shaft from moving, prevents appearing torsional spring carding phenomenon, improves the reliability of device, reduces the operation failure rate, and the space in the vehicle width direction is small, and the space requirement of the vehicle body side stand cover plate is small, and the cost is low.

[0006] Technical scheme: the utility model discloses a novel electric key device, characterized by: including the faceplate, fixed disc and connecting plate that are connected in proper order through a plurality of grub screws, the gasket and sealing ring are equipped between the faceplate and fixed disc, the pin shaft, torsional spring, limiting plate and connecting sleeve are equipped between the fixed disc and connecting plate, and the connecting plate is connected with the switch;The faceplate, gasket, sealing ring, fixed disc, pin shaft, torsional spring, limiting plate, connecting sleeve, connecting plate and switch are all connected with the rotating shaft.

[0007] Among them, the fixed disc's four corner portions are provided with hole bodies for the grub screws to pass through.

[0008] Among them, the connecting plate's four corner portions are provided with hole bodies for the grub screws to pass through.

[0009] Among them, the grub screw is connected with the nut after passing through the hole body of the corresponding fixed disc and connecting plate.

[0010] Among them, the gasket is arranged between the nut and connecting plate.

[0011] The device is located in a train driver's cab.

[0012] The device is located in a train driver's cab.

[0013] Beneficial effects: Compared with the prior art, the utility model has the following remarkable advantages: the utility model has bilateral limiting structures, prevents over-rotation, effectively protects the switch, the nut is locked at the tail end of the rotating shaft, prevents the rotating shaft from moving, prevents the torsional spring from being stuck, improves the reliability of the device, and reduces the operation failure rate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Structure diagram of the prior art electric key device Figure One ;

[0015] Figure 2 Structure diagram of the prior art electric key device Figure Two ;

[0016] Figure 3 Structure diagram of the utility model;

[0017] Figure 4 Front view structure diagram of the utility model;

[0018] Figure 5 Side view structure diagram of the utility model;

[0019] Figure 6 Three-dimensional structure diagram of the utility model;

[0020] In the figure, 1 is a panel; 2 is a gasket; 3 is a countersunk screw; 4 is a sealing ring; 5 is a fixed disc; 6 is a rotating shaft; 7 is a limiting plate; 8 is a connecting sleeve; 9 is a connecting plate; 10 is a gasket; 11 is a nut; 12 is a switch; 13 is a pin shaft; and 14 is a torsional spring. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be further described below in combination with the drawings and specific embodiments.

[0022] The novel electric key device comprises a panel 1, a fixed disc 5 and a connecting plate 9 which are sequentially connected through a plurality of countersunk screws 3, a gasket 2 and a sealing ring 4 are arranged between the panel 1 and the fixed disc 5, a pin shaft 13, a torsional spring 14, a limiting plate 7 and a connecting sleeve 8 are arranged between the fixed disc 5 and the connecting plate 9, and the connecting plate 9 is connected with a switch 12; the panel 1, the gasket 2, the sealing ring 4, the fixed disc 5, the pin shaft 13, the torsional spring 14, the limiting plate 7, the connecting sleeve 8, the connecting plate 9 and the switch 12 are all connected with a rotating shaft 6.

[0023] The four corners of the fixed disc 5 are provided with hole bodies for the passage of the countersunk screws 3. The four corners of the connecting plate 9 are provided with hole bodies for the passage of the countersunk screws 3. The countersunk screws 3 are connected with nuts 11 after passing through the hole bodies of the corresponding fixed disc 5 and the connecting plate 9. The device is located in the driver's cab of a train.

[0024] In use, a special square key is used to rotate the rotating shaft 6, which is connected with the torsion spring 14, the limiting plate 7 and the connecting sleeve 8. The square key is pulled out after unlocking, and the electric key device can be self-reset under the action of the self-resetting force of the torsion spring 14. The electric key device is locked by a nut at the tail end of the rotating shaft to prevent the rotating shaft from moving and the torsion spring from being stuck. The panel and the connecting plate of the electric key device are directly fastened by countersunk screws, washers and nuts.

[0025] The electric key device occupies a small space in the width direction of the vehicle and has a small space requirement for the side mounting cover plate of the vehicle body. The electric key device is locked by a nut at the tail end of the rotating shaft to prevent the rotating shaft from moving and the torsion spring from being stuck. The electric key device has a double-side limiting mode to prevent over-rotation and effectively protect the switch. The electric key device has a low cost.

Claims

1. A novel electric key device characterized by: It includes faceplate (1), fixed disc (5) and connecting plate (9) connected by several countersunk screws (3) in turn, gasket (2) and sealing ring (4) are arranged between faceplate (1) and fixed disc (5), pin shaft (13), torsional spring (14), limiting plate (7) and connecting sleeve (8) are arranged between fixed disc (5) and connecting plate (9), connecting plate (9) is connected with switch (12);The faceplate (1), gasket (2), sealing ring (4), fixed disc (5), pin shaft (13), torsional spring (14), limiting plate (7), connecting sleeve (8), connecting plate (9), switch (12) are all connected with rotating shaft (6).

2. The new electric key device according to claim 1, characterized in that: Four corners of the fixed disc (5) are provided with holes for the countersunk screws (3) to pass through.

3. The new electric key device according to claim 2, characterized in that: Four corners of the connecting plate (9) are provided with holes for the countersunk screws (3) to pass through.

4. The new electric key device according to claim 3, characterized in that: The countersunk screws (3) are connected with nuts (11) after passing through the holes of the corresponding fixed disc (5) and connecting plate (9).

5. The novel electric key device according to claim 4, characterized by: The gasket (10) is arranged between the nut (11) and the connecting plate (9).

6. The new electric key device according to claim 1, characterized in that: The device is located in the cab of a train driver.

7. The new electric key device according to claim 6, characterized in that: The device is located in the cab of a rail transit train driver.

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