阅读说明：本技术 一种风管小车连锁装置 (air duct trolley interlocking device ) 是由 李国瑞 杜娟丽 贺宇明 孙磊 于 2019-11-26 设计创作，主要内容包括：本发明公开一种风管小车连锁装置,包括上盖板和下盖板,所述上盖板和下盖板通过弹性件和限位装置相连接,所述限位装置包括限位件和限位槽,所述限位件部分置于限位槽内,且可相对限位槽上下运动；所述上盖板和下盖板之间设有微动开关。本发明具有操作简单、适用性强等特点。本发明结构简单,可操作性强,能够避免人员误操作,导致风管还在连接状态的时候对飞机造成损伤,提高飞机地面空调机组供气的安全性。(The invention discloses an air duct trolley interlocking device which comprises an upper cover plate and a lower cover plate, wherein the upper cover plate and the lower cover plate are connected with a limiting device through an elastic piece, the limiting device comprises a limiting piece and a limiting groove, the limiting piece is partially arranged in the limiting groove and can move up and down relative to the limiting groove, and a microswitch is arranged between the upper cover plate and the lower cover plate.)

The air duct trolley interlocking device is characterized by comprising an upper cover plate and a lower cover plate, wherein the upper cover plate and the lower cover plate are connected with a limiting device through elastic pieces, the limiting device comprises a limiting piece and a limiting groove, the limiting piece is partially arranged in the limiting groove and can move up and down relative to the limiting groove, and a microswitch is arranged between the upper cover plate and the lower cover plate.

2. The interlock device according to claim 1, wherein the elastic member is externally provided with a guide cylinder.

3. The interlock device according to claim 2, wherein the guide cylinder is externally provided with a cylinder sleeve.

4. The interlock device of claim 4, wherein said sleeve is made of a graphite material.

5. The interlocking device of claim 1, wherein the number of the elastic members is four, and the four elastic members are respectively arranged near four corners of the upper cover plate and the lower cover plate.

6. The interlocking device of claim 1, wherein the four limiting devices are disposed at four corners of the upper cover plate and the lower cover plate.

7. The interlock device of claim 1 or 5, wherein the resilient member is a compression spring.

8. The interlocking device according to claim 1 or 6, wherein the limiting member is a limiting rod, and a limiting protrusion is provided on the limiting rod.

Technical Field

The invention relates to the technical field of airplane ground air conditioning units, in particular to an air duct trolley interlocking device.

Background

The special air conditioner for the ground of the airplane is used as important airport ground guarantee equipment, and when the airplane is in the ground waiting flight process (preparation before the flight, inspection after the flight, etc.), the special air conditioner for the ground of the airplane can completely replace an airplane with aircraft fuel oil as power to provide processed clean air for a passenger cabin, thereby greatly reducing the cost of the aircraft fuel oil and reducing the pollution to the airport environment.

Disclosure of Invention

The invention aims to provide air duct trolley interlocking devices aiming at the defects of the prior art so as to avoid the damage to an airplane caused by the misoperation of personnel when air ducts are still connected.

The technical scheme includes that the air duct trolley interlocking device comprises an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate are connected with a limiting device through elastic pieces, the limiting device comprises a limiting piece and a limiting groove, the limiting piece is partially arranged in the limiting groove and can move up and down relative to the limiting groove, and a microswitch is arranged between the upper cover plate and the lower cover plate.

Preferably, a guide cylinder is provided outside the elastic member.

Preferably, a sleeve is arranged outside the guide cylinder.

Preferably, the cartridge is made of a graphite material.

Preferably, the number of the elastic members is four, and the four elastic members are respectively arranged at four corners close to the upper cover plate and the lower cover plate.

Preferably, the number of the limiting devices is four, and the four limiting devices are respectively arranged at four corners of the upper cover plate and the lower cover plate.

Preferably, the elastic member is a compression spring.

Preferably, the limiting part is a limiting rod, and a limiting protrusion is arranged on the limiting rod.

Compared with the prior art, the invention has the beneficial effects that: the air supply device is simple in structure and strong in operability, can avoid damage to the airplane caused by misoperation of personnel when the air pipes are still in a connected state, and improves the safety of air supply of the ground air conditioning unit of the airplane.

Drawings

Fig. 1 is a structural diagram of an air duct trolley interlocking device in an embodiment of the invention.

In the attached drawing, 1-an upper cover plate, 2-a lower cover plate, 3-a limiting rod, 4-a limiting hole, 5-a limiting bulge, 6-a compression spring, 7-a guide cylinder, 8-a graphite cylinder sleeve and 9-a microswitch.

Detailed Description

The technical solution of the present invention is described in detail below with reference to specific examples and drawings, but the scope of the present invention is not limited to the examples.