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Rotary wedge-shaped self-locking air filter door shackle

A self-locking and door locking technology, which is applied in the directions of fuel air filters, building fastening devices, and wing fan fastening devices, etc., to achieve the effects of safe guidance, simple operation and low maintenance cost.

Inactive Publication Date: 2015-09-23
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the above-mentioned shortcomings in the prior art, the object of the present invention is to provide a rotary wedge-shaped self-locking air filter door lock, which is easy to open and close, and is not prone to disengagement failure, and has high reliability.

Method used

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  • Rotary wedge-shaped self-locking air filter door shackle
  • Rotary wedge-shaped self-locking air filter door shackle
  • Rotary wedge-shaped self-locking air filter door shackle

Examples

Experimental program
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Embodiment Construction

[0035] Such as Figure 1-4 As shown, this kind of rotary wedge-shaped self-locking air filter door latch includes a bolt 1 fixed on the wall, a wedge block 2 fixed on the air filter door, a rotary lock handle 3, and Nut 4.

[0036] The wedge block 2 is continuously thickened along the direction from top to bottom, and the front surface of the wedge block 2 is an inclined locking working surface 21. Further technology: the oblique angle formed by the front surface of the wedge block 2 and the vertical plane 4 degrees to 7 degrees.

[0037] The lower end of the wedge block 2 is provided with a forwardly protruding stopper 22 . The upper end of the wedge-shaped block 2 is provided with a blind hole in the front-rear direction, and an elastic stop 5 running forward and backward is arranged in the blind hole, and a spring 6 for front and rear expansion and contraction is arranged between the elastic stop 5 and the wedge-shaped block 2 .

[0038] One end of the rotating lock hand...

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Abstract

A rotary wedge-shaped self-locking air filter door shackle comprises a bolt fixed on a wall. The rotary wedge-shaped self-locking air filter door shackle is characterized by further comprising a wedge-shaped block fixed on an air filter door, a rotary locking handle and a nut, the wedge-shaped block is gradually thickened continuously from top to bottom, a front surface of the wedge-shaped block is an inclined locking work face, a retaining block which protrudes forwards is arranged at the lower end of the wedge-shaped block, a blind hole in front-rear direction is formed in the upper end of the wedge-shaped block, an elastic retaining head running back and forth is arranged in the blind hole, a spring used for forward-backward extension and contraction is arranged between the elastic retaining head and the wedge-shaped block, a locking plate is arranged at one end of the rotary locking handle and matched with the locking work face of the wedge-shaped block, a sleeve is arranged at the other end of the rotary locking handle and disposed on the bolt in a sleeved manner with a gap, and the nut is assembled on the bolt and positioned in front of the rotary locking handle. The rotary wedge-shaped self-locking air filter door shackle is simple and convenient to open and close, less prone to disengagement and failure and quite high in reliability.

Description

technical field [0001] The invention relates to the technical field of locomotive air filter doors, in particular to a rotary wedge-shaped self-locking air filter door latch. Background technique [0002] In order to ensure the air intake effect of the locomotive diesel engine, the air filter of the locomotive needs to be cleaned and purged regularly, but because the original design of the air filter door locking device is only a simple combination of bolts and nuts, there are mainly the following disadvantages: [0003] One is that the wrench must be rotated several times to open or close when disassembling; [0004] Second, because the locomotive is operated in the open air and has been exposed to wind and rain for a long time, the bolts are often rusted, making disassembly and assembly more difficult. Sometimes they have to be cut off and replaced with bolts, which is time-consuming, costly and inefficient; [0005] The third is that the disassembly process needs to be o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05C19/08F02M35/02
Inventor 李大军丁学清于小明赵修华刘成军罗青平杨连安
Owner SHANDONG IRON & STEEL CO LTD
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