Emergency control hand-cranking mechanism

Abstract

The utility model discloses an emergency control hand-cranking mechanism which comprises an installation shell, a hand-cranking mechanism and a hand-cranking mechanism. The auxiliary shaft sleeve and the main shaft sleeve are fixedly arranged on the inner wall of one side of the mounting shell up and down; the main rotating shaft is inserted into the main shaft sleeve and is in rolling fit with the main shaft sleeve, the inner end of the main rotating shaft is connected with a main gear, the outer end of the main rotating shaft outwards penetrates through one side wall of the mounting shell and then is connected with a main rocker arm, and the main rocker arm is externally connected with an extension bar; the auxiliary rotating shaft is inserted into the auxiliary shaft sleeve and is in rolling fit with the auxiliary shaft sleeve, the inner end of the auxiliary rotating shaft is connected with an auxiliary gear, the auxiliary gear is in meshed connection with the main gear, and the outer end of the auxiliary rotating shaft is connected with a potentiometer. The main rotating shaft is controlled to rotate by operating the extension bar, the output action of the potentiometer is realized under the matching action of the main gear, the auxiliary gear and the auxiliary rotating shaft, the operation behavior of a driver is converted into a corresponding electric signal through the electronic sensor, namely the potentiometer, and the electric signal is output to the pressure relief mechanism, so that the response time is short, and the operation mode is simple and quick.

Description

Technical Field

[0001] The utility model relates to the technical field of flight simulation training in a crew simulator, in particular to an emergency operating hand-crank mechanism. Background Art

[0002] The cabin crew simulator is mainly used to simulate flight simulation training / demonstration construction, advanced simulation / experimental environment construction, and flight attendant dynamic cabin system design and integration. It is mainly used to train the professional skills of aircraft cabin crew. Among them, the cabin door trainer refers to a ground simulation device used to cultivate and train the cockpit and cabin crew to collectively deal with aircraft emergencies. The purpose is to enable the crew to master the principles and use steps of onboard emergency equipment and guide passengers to evacuate the aircraft quickly and safely.

[0003] The door trainer is equipped with doors, windows, seats, emergency equipment (fire extinguishers, etc.) that are exactly the same as the aircraft being simulated. Usually, the door has a pressure relief mechanism that performs a pressure relief operation in response to the decompression in the cabin, that is, connecting the two sides of the door to allow ventilation between the cockpit and the passenger cabin, thereby relieving the high pressure on the cockpit / passenger cabin walls. This condition of the door assembly is called a pressure relief condition, which means that the force generated by the pressure difference on both sides can cause the pressure relief structure of the door assembly to work and connect the two sides of the door.

[0004] The existing pressure relief control structure is often connected to the pressure relief mechanism through a mechanical sensing mechanism or a connecting rod mechanism. The pressure relief sensing path is long and the reliability is poor, resulting in a long time from sensing to opening of the pressure relief mechanism, which cannot meet the existing timeliness requirements. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an emergency operating hand-crank mechanism, which has a simple structure and is easy to install and operate.

[0006] To achieve the above purpose, the utility model adopts the following contents:

[0007] The utility model provides an emergency operating hand-crank mechanism, which comprises:

[0008] An installation shell, the interior of which is hollow;

[0009] The secondary shaft sleeve and the main shaft sleeve are fixedly mounted on one side inner wall of the mounting shell in an upper and lower position;

[0010] A main rotating shaft is inserted into the main shaft sleeve and rollingly cooperates with the main shaft sleeve, the inner end of the main rotating shaft is connected to the main gear, and the outer end of the main rotating shaft is connected to a main rocker arm after passing through a side wall of the mounting shell, and the main rocker arm is externally connected to an extension rod;

[0011] The auxiliary shaft is inserted into the auxiliary shaft sleeve and rollingly matched with the auxiliary shaft sleeve. The inner end of the auxiliary shaft is connected to the auxiliary gear, the auxiliary gear is meshed with the main gear, and the outer end of the auxiliary shaft is connected to a potentiometer.

[0012] According to the emergency hand-crank mechanism provided by the utility model, two limit columns are horizontally arranged inside the mounting shell, and the two limit columns are arranged on both sides of the upper part of the main rotating shaft and are symmetrically arranged with the main rotating shaft as the center, and the inner end of the main rotating shaft is also provided with a limit arm located outside the main gear. The limit columns on both sides limit the swing angle of the limit arm, thereby limiting the rotation angle of the driver's operating extension rod.

[0013] According to the emergency hand-crank mechanism provided by the utility model, the side wall of the mounting shell is provided with a receiving groove, and the potentiometer is arranged in the receiving groove, which is equivalent to embedding the potentiometer in the mounting shell, and helps to protect the potentiometer from accidental damage.

[0014] According to the emergency hand-crank mechanism provided by the utility model, one side of the installation shell is open and provided with a fixed frame, and a plurality of mounting screw holes are provided on the surface of the fixed frame. The emergency hand-crank mechanism is fixed in the cockpit through the fixed frame.

[0015] According to the emergency control hand-crank mechanism provided by the utility model, a rubber handle sleeve is provided at the end of the extension rod. The anti-slip performance is improved by adding the rubber handle sleeve, so that the driver can operate more stably and use it more comfortably.

[0016] Compared with the prior art, the utility model has the following technical effects: the utility model has a simple structure and a reasonable design; the driver controls the main shaft to rotate clockwise or counterclockwise by operating the extension rod, thereby realizing the output action of the potentiometer under the cooperation of the main gear, the auxiliary gear and the auxiliary shaft, and converts the driver's operating behavior into a corresponding electrical signal through the electronic sensor, that is, the potentiometer and outputs it to the pressure relief mechanism, with a fast response time and a simple and fast operation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the emergency operation hand-crank mechanism of the utility model embodiment;

[0019] Figure 2 This is a schematic diagram of the installation of the internal parts of the housing according to the embodiment of the utility model;

[0020] 1-installation shell, 2-potentiometer, 3-main rocker arm, 4-extension rod, 5-rubber handle sleeve, 6-fixed frame; 11-secondary shaft sleeve, 12-main shaft sleeve, 13-main shaft, 14-secondary shaft, 15-main gear, 16-secondary gear, 17-limiting column, 18-limiting arm, 19-accommodating groove, 61-installation screw hole. DETAILED DESCRIPTION

[0021] In order to explain the present invention more clearly, the present invention is further described below in conjunction with preferred embodiments. Those skilled in the art should understand that the following specific description is illustrative rather than restrictive, and should not be used to limit the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0023] See also Figure 1 and Figure 2 shown. The utility model embodiment proposes an emergency operation hand-crank mechanism, which is used for the simulated operation of the cabin door in the crew simulator, and mainly includes an installation shell 1, which has a hollow specific installation space inside, and two parallel secondary shaft sleeves 11 and main shaft sleeves 12 are fixedly arranged up and down on the inner wall of one side of the installation shell 1, and the diameter of the secondary shaft sleeve 11 is smaller than the diameter of the main shaft sleeve 12; a main shaft 13 is horizontally inserted in the main shaft sleeve 12, and the main shaft 13 and the main shaft sleeve 12 are rollingly matched, the inner end of the main shaft 13 is connected to the main gear 15, and the outer end of the main shaft 13 passes through a side wall of the installation shell 1 outwardly and is connected to a main rocker arm 3, and the main rocker arm 3 is externally connected to an extension rod 4; a secondary shaft 14 is horizontally inserted in the secondary shaft sleeve 11, and the secondary shaft 14 and the secondary shaft sleeve 11 are rollingly matched, the inner end of the secondary shaft 14 is connected to the secondary gear 16, and the secondary gear 16 forms a meshing connection with the main gear 15, and the outer end of the secondary shaft 14 is connected to a potentiometer 2.

[0024] During actual operation, the driver controls the main shaft to rotate clockwise or counterclockwise by operating the extension rod, thereby realizing the cyclic output action of the potentiometer under the cooperation of the main gear, sub-gear and sub-shaft. The driver's operating behavior is converted into a corresponding electrical signal through the electronic sensor, i.e. the potentiometer, and outputted to the pressure relief mechanism, thereby controlling the pressure relief mechanism to work continuously.

[0025] In this embodiment, two limit posts 17 are horizontally arranged inside the mounting housing 1, and the two limit posts 17 are arranged on both sides of the upper part of the main rotating shaft 13 and are symmetrically arranged with the main rotating shaft 13 as the center, and the inner end of the main rotating shaft 13 is also provided with a limit arm 18 located outside the main gear 15. The limit arm will touch the limit post during the left and right rotation process, and the limit posts on both sides limit the swing angle of the limit arm, thereby limiting the rotation angle of the driver's back and forth manipulation of the extension rod.

[0026] In this embodiment, a accommodating groove 19 is provided on the side wall of the mounting housing 1, and the potentiometer 2 is disposed in the accommodating groove 19. This is equivalent to embedding the potentiometer in the mounting housing, which helps to protect the potentiometer from accidental damage.

[0027] In this embodiment, one side of the mounting housing 1 is open and is provided with a fixing frame 6, and a plurality of mounting screw holes 61 are provided on the surface of the fixing frame 6. The fixing frame facilitates the emergency control hand-crank mechanism to be fixed in the cockpit.

[0028] In this embodiment, a rubber handle sleeve 5 is provided at the end of the extension rod 4. The anti-slip performance is improved by adding the rubber handle sleeve, so that the driver can operate more stably and use it more comfortably.

[0029] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. An emergency operating hand-crank mechanism, characterized in that: include: Installing a housing, the interior of which is hollow; The secondary shaft sleeve and the main shaft sleeve are fixedly mounted on one side inner wall of the mounting shell in an upper and lower position; A main rotating shaft is inserted into the main shaft sleeve and rollingly cooperates with the main shaft sleeve, the inner end of the main rotating shaft is connected to the main gear, and the outer end of the main rotating shaft is connected to a main rocker arm after passing through a side wall of the mounting shell, and the main rocker arm is externally connected to an extension rod; The auxiliary shaft is inserted into the auxiliary shaft sleeve and rollingly matched with the auxiliary shaft sleeve. The inner end of the auxiliary shaft is connected to the auxiliary gear, the auxiliary gear is meshed with the main gear, and the outer end of the auxiliary shaft is connected to a potentiometer.

2. An emergency hand-crank mechanism according to claim 1, characterized in that: Two limit columns are horizontally arranged inside the mounting shell, and the two limit columns are arranged on both sides of the upper part of the main shaft and are symmetrically arranged with the main shaft as the center. The inner end of the main shaft is also provided with a limit arm located outside the main gear.

3. The emergency hand-crank mechanism according to claim 1, characterized in that: The side wall of the installation shell is provided with a receiving groove, and the potentiometer is arranged in the receiving groove.

4. The emergency hand-crank mechanism according to claim 1, characterized in that: One side of the installation shell is open and is provided with a fixing frame, and a plurality of installation screw holes are opened on the surface of the fixing frame.

5. The emergency hand-crank mechanism according to claim 1, characterized in that: The end of the extension rod is provided with a rubber handle sleeve.

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