Glass fiber reinforced plastic cabin door sealing and mounting structure

Abstract

The invention discloses a glass fiber reinforced plastic cabin door sealing and mounting structure. By regulating the rotational radius of a fold, the mounting mode of a sealant tape is changed from a mode of adhering the sealant tape to a flange of a glass fiber reinforced plastic head to a mode of inserting the sealant tape into a flange of a cabin door, and a gap between the cabin door and the glass fiber reinforced plastic head is ensured to be wholly filled with the sealant tape when the cabin door is closed, and thus the sealing performance of the cabin door is improved; by replacing a cam lock by a compression type door lock, as the compression type door lock has the regulation ability in the axial direction, the condition that field regulation on the size of the flange of the glass fiber reinforced plastic head is not needed is ensured, and the field workload is greatly lowered; and meanwhile, the compression type door lock has larger axial tensioning force, so that the closing of the closed cabin door is ensured. The glass fiber reinforced plastic cabin door sealing and mounting structure is suitable for a tramcar cabin door.

Description

technical field [0001] The invention relates to the technical field of tram cabin door sealing. Background technique [0002] The design scheme of domestic modern trams has gradually matured. The driver's cab is made of fiberglass structure. There are several doors that can be opened on the outside of the fiberglass. The doors are equipped with electrical equipment, so the sealing requirements for the closed doors are very strict. [0003] Due to the characteristics of electrical equipment, some engineering vehicles in Beijing put forward high requirements on the sealing of the hatch. 1.2 Prior art related to the present invention one [0004] The sealing performance of prior art scheme is slightly poor, and its structure and reason are as follows: [0005] The sealing scheme of the original FRP cabin door is as follows: figure 1 As shown, it is mainly composed of piece 1 - fiberglass head, piece 2 - hinge, piece 3 - hatch, piece 4 - cam lock and piece 5 - sealing strip. ...

AI Technical Summary

Problems solved by technology

[0006] The sealing performance of this structure is poor: the original design of part 2-folding is unreasonable, and the rotation radius is large, so that part 1-glass fiber reinforced plastic head needs to cut out an opening at the folding position so that part 2-folding will not interfere; similarly, The connection position between the lower part 4-turn cam lock and part 1-glass fiber reinforced plastic head also needs to be cut off the flanging of part 1-glass fiber reinforced plastic head, see image 3

Due to the existence of cuts on the flanging at the upper and lower joints of the glass fiber reinforced plastic head of piece 1, the sealing rubber strip of piece 5 cannot completely cover all the gaps between the glass steel head of piece 1 and the hatch door of piece 3 when they are closed. Sealing performance cannot be guaranteed

[0007] Large workload on site and poor fastening method: the lower part of the original plan adopts part 2 - cam lock, when part 3 - hatch is closed, screw part 2 - cam lock, so that part 2 - cam lock lock The arm rotates and snaps to the notch of the flanging of the FRP head of piece 1

Since part 2 - the swivel cam lock does not have the ability to adjust in the axial direction, nor does it have a large axial tension force, this requires that the size of the flanging of part 1 - the glass fiber reinforced plastic head needs to be adjusted on site to adapt to part 4 - turn For the position of the tongue lock, the workload on site is heavy and part three - the closing effect of the hatch is not good

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