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Back gantry spiral limiting block hidden limiting structure

A limit structure and back door technology, applied in the direction of screws, connecting components, threaded fasteners, etc., can solve the problems of insufficient limit accuracy, poor quality of parts, looseness, etc., to ensure the convenience of installation and the quality of parts The effect of lifting and improving

Pending Publication Date: 2020-02-14
FAW CAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The screw stopper of the back door is connected with the threaded hole on the inner sheet metal of the back door through screw connection. When installing the screw stopper of the back door, the operator needs to screw the screw stopper of the back door In the threaded hole on the inner sheet metal of the back door, the limiting structure of the existing back door screw limit block is set outside the threaded part of the limit block, and the precision of the parts is poor, and if the back door screw limit If the position block is not screwed in properly, problems such as looseness, abnormal noise, and insufficient limit accuracy will occur. If the screw limit block of the back door is screwed in too tightly, problems such as thread damage and insufficient limit accuracy will also occur

Method used

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  • Back gantry spiral limiting block hidden limiting structure
  • Back gantry spiral limiting block hidden limiting structure

Examples

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Embodiment Construction

[0011] The back door screw stop block 1 made of rubber is used to connect with the threaded hole with internal threads on the inner sheet metal of the back door, and the upper part of the back door screw stop block 1 is a threaded part with external threads ,like figure 1 and figure 2 As shown, a radial protrusion along the back door screw limit block 1 is set between the tooth bottoms of two adjacent helix lines at the extreme screw-in position at the bottom of the threaded portion of the back door screw limit block 1 The hidden limit structure 2 (the limit screw-in position is determined by different back door screw limit blocks and their screw-in positions and heights, which can be grasped by those of ordinary skill in the art according to the actual situation, this embodiment In the middle, there is a hidden limit structure 2) on the part between the bottom of the second-to-last helix and the bottom of the third-to-last helix of the threaded part from top to bottom. The ...

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PUM

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Abstract

The invention provides a back gantry spiral limiting block hidden limiting structure. A hidden limiting structure protruding in the radial direction of a back gantry spiral limiting block is arrangedat the portion, between two spiral line roots, of the extreme screwing-in position of a thread portion of the back gantry spiral limiting block, and the height of the hidden limiting structure in theradial direction of the back gantry spiral limiting block is smaller than the height of an external thread of the back gantry spiral limiting block. Once tightening force needed when an operator installs the back gantry spiral limiting block is increased suddenly, the screwing-in operation of the back gantry spiral limiting block is completed, and the operation is convenient and reliable. After the back gantry spiral limiting block is installed, no exposed or protruding structure exists, and the part refined performance is obviously improved. Considering the cost, the cost can be increased when the refined performance is improved generally, however the back gantry spiral limiting block hidden limiting structure can improve the refined performance on the premise that the cost is not changed.

Description

technical field [0001] The invention belongs to the field of automobile back door parts and relates to a hidden limit structure of a screw limit block of a back door. Background technique [0002] The screw stopper of the back door is connected with the threaded hole on the inner sheet metal of the back door through screw connection. When installing the screw stopper of the back door, the operator needs to screw the screw stopper of the back door In the threaded hole on the inner sheet metal of the back door, the limiting structure of the existing back door screw limit block is set outside the threaded part of the limit block, and the precision of the parts is poor, and if the back door screw limit If the position block is not screwed in properly, problems such as looseness, abnormal noise, and insufficient limit accuracy will occur. If the screw limit block of the back door is screwed in too tightly, problems such as thread damage and insufficient limit accuracy will also o...

Claims

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Application Information

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IPC IPC(8): F16B35/00F16B35/04
CPCF16B35/00F16B35/041
Inventor 姜民德王鹏史承婕李耀光马睿秋王志勇
Owner FAW CAR CO LTD
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