Rail train air conditioning door cover quick lock device

Abstract

The invention provides a rail train air conditioner door cover quick locking device which comprises a handle, a sliding plate, a liner plate, a unit cover plate and a shell side plate, wherein the handle and the sliding plate are arranged outside the unit cover plate, after two spring bolts are welded in the liner plate, the liner plate is arranged inside the unit cover plate, two long kidney-shaped holes are formed in the face plate of the unit cover plate, two long kidney-shaped holes are formed in the bottom plate of the liner plate, locking plates are arranged on the shell side plate in the left direction and the right direction respectively, the handle is connected with the liner plate through two bolts which are sleeved with bushes respectively and penetrate through the long kidney-shaped holes, two bolts are sleeved with bushes respectively and then the liner plate are connected with the unit cover plate through the two bolts, then, the handle, the sliding plate and the liner plate form a connected movable structure, the spring bolts on the liner plate can be embedded into the locking plates in the left direction of the shell side plate and the right direction of the shell side plate respectively when the handle slides to one side, and rapid locking of the rail train air conditioner door cover is achieved. The rail train air conditioner door cover quick locking device is simple in structure, convenient to install and strong in generality and interchangeability for structural parts, and has good guarantee for safety and reliability.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of rail vehicle air conditioners, in particular to a quick lock device for rail train air conditioner door covers. Background technique [0002] "rail train" that the present invention says mainly refers to the used vehicle of city subway train, light rail train and intercity train. With the development of urbanization worldwide, the construction of rail transit, including subway, light rail and intercity train, has become the development trend of public transportation in various countries. Rail trains are now generally equipped with air conditioning systems. [0003] The way of locking the air-conditioning door cover of the existing rail train is generally to adopt door locks or bolts, and its main structure can be found in figure 1 and figure 2 ,in, figure 1 It is a door lock type locking structure, figure 2 It is a bolt-on locking structure. In the door lock type locking ...

AI Technical Summary

Problems solved by technology

[0004] In practical application, it is found that the existing way of locking the air-conditioning door cover of rail trains has deficiencies, the main deficiencies are: (1) When the door lock structure is used to lock the cover plate, the price of the stainless steel door lock is relatively high , while the galvanized door lock is likely to cause electrochemical corrosion when in contact with the stainless steel shell, resulting in a reduction in the strength of the door lock bolt and affecting the fixity of the cover plate

(2) After working for a long time, the bolt of the door lock is easy to loosen, resulting in poor buckling effect of the door lock. When the rail train is running at high speed, the cover plate of the air conditioner is easy to fly out, causing safety problems

(3) The door lock structure is used to make more locks for the cover plate, which is prone to the phenomenon that some door locks are not locked, and there are potential safety hazards

(4) When the bolt-fixed locking structure is used to fix the cover plate, the disassembly of the cover plate is cumbersome, which not only causes a large workload; but also causes the phenomenon of slipping of the bolt 14 and the nut 15 due to repeated installation and disassembly

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