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Simple opening structure for fuse box cover and using method thereof

A fuse box, a simple technology, applied in the direction of emergency protection devices, electrical components, circuits, etc., can solve the problems of large application limitations, high opening difficulty, low opening difficulty application limitations, etc., to achieve small limitations, open The effect of low difficulty and reduced risk of mechanical strength

Pending Publication Date: 2019-03-01
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and problems in the prior art that are difficult to open and have relatively limited applications, and provide a simple opening structure and a fuse box cover with low difficulty to open and limited applications. how to use it

Method used

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  • Simple opening structure for fuse box cover and using method thereof
  • Simple opening structure for fuse box cover and using method thereof
  • Simple opening structure for fuse box cover and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see Figure 1 to Figure 5, a simple opening structure of the fuse box cover, including a lock groove 2 and a lock pin 3 inside it, the lock pin 3 includes a pin shaft 31 and a pin head 32, the bottom surface of the pin head 32 is perpendicular to the outer end of the pin shaft 31 connection, the inner end of the pin shaft 31 is located inside the lock groove 2, and the outer wall of the pin shaft 31 is threadedly connected to the inside of the lock groove 2;

[0044] The diameter of described pin head 32 is greater than the diameter of bearing pin 31, and the middle part of described pin head 32 offers opening hole 33, and the width of described opening hole 33 is greater than the thickness of coin 1; The cross section of described opening hole 33 is circle Arc structure, its radian is a quarter circle to three quarters circle. Preferably, the arc of the cross section of the opening hole 33 is a semicircle.

[0045] A method for using the simple opening structure of t...

Embodiment 2

[0047] Basic content is the same as embodiment 1, the difference is:

[0048] The lock groove 2 includes an outer ring surface 21, an upper groove cylinder 22, a middle ring surface 23, and a lower groove cylinder 24 arranged sequentially from top to bottom. The top is flush and vertically connected, the bottom of the upper tank 22 is connected vertically with the outer end of the middle ring surface 23, and the inner end of the middle ring surface 23 is connected vertically with the top of the lower groove drum 24. The radius of the inner ring of the end ring surface 21 , the radius of the pin head 32 , the radius of the inner ring of the intermediate ring surface 23 , and the radius of the pin shaft 31 decrease in sequence.

Embodiment 3

[0050] Basic content is the same as embodiment 2, the difference is:

[0051] An inner and outer gap 4 is sandwiched between the outer wall of the pin head 32 and the inner wall of the upper tank 22 . The pin head 32 is arranged lower than the outer end ring surface 21 .

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PUM

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Abstract

The invention discloses a simple opening structure for fuse box cover. The simple opening structure for fuse box cover comprises a lock groove and a lock pin positioned inside the lock groove, whereinthe lock pin comprises a pin roll and a pin head; the bottom surface of the pin head is vertically connected with the outer end of the pin roll; the inner end of the pin roll is positioned inside thelock groove; the diameter of the pin head is greater than that of the pin roll; an open hole is formed in the middle part of the pin head; the width of the open hole is greater than the thickness ofa coin; the cross section of the open hole is of a circular arc structure, and the radian of the circular arc is one quarter of a circle to three quarters of a circle. Through the design, the openingdifficult is relatively low, and the restriction of application is relatively low.

Description

technical field [0001] The invention relates to an opening structure of a fuse box cover, in particular to a simple opening structure of a fuse box cover and a use method thereof, which are specifically suitable for reducing opening difficulty and narrowing application limitations. Background technique [0002] In the existing market, the opening hole in the cover of the vehicle fuse box is relatively deep, and a special opening tool, such as a key or a screwdriver, must be used to open it, which increases the difficulty of operation and has great limitations. In addition, the existing opening The shape of the hole is mostly square, and the hole is relatively deep, which not only easily reduces the mechanical strength of the fuse box cover itself, but also has poor appearance quality and is not beautiful. [0003] The authorized announcement number is CN205723416U, and the utility model patent with the authorized announcement date on November 23, 2016 discloses an external f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/20
CPCH01H85/20
Inventor 胡美龄李兰许晶刘秋实张昱杨成赵清华
Owner DONGFENG COMML VEHICLE CO LTD
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