Anti-loosening connecting bolt

A technology for connecting bolts and anti-loosening, which is applied in the direction of bolts, connecting components, screws, etc. It can solve the problems of not installing anchor bolts, poor anti-loosening reliability, and unfavorable mass application, etc., to achieve long service life and high reliability , beneficial to the effect of application

Pending Publication Date: 2020-07-28
王双茂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once loosening occurs, it will cause accidental shutdown in mild cases, and cause catastrophe in severe cases
At 18:35 on November 6, 2017, a female worker of Shenzhen Weihongzhi Hardware Products Co., Ltd. was knocked down by another punching machine that suddenly fell next to her. Anchor bolts, there should be 2 bolts on the side but only 1 bolt is installed, and it loosens during long-term operation, and eventually the center of gravity becomes unbalanced and collapses
Anti-loosening methods 12-13 are to use the plastic deformation of their own materials to embed each other, and the application of other bonding materials to achieve the purpose of anti-loosening, but there are still deficiencies in the use process and certain limitations
[0009] In addition, a variety of domestic and foreign advanced "bolts that never loosen" are also introduced on the Internet, which are difficult to manufacture and cost high.
In addition, special gaskets are added to increase the frictional resistance for anti-loosening. In a word, these measures are for anti-loosening by increasing the frictional resistance. Poor, and not conducive to high-volume applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment one, see figure 1 , the anti-loosening connecting bolts include a bolt 1 and a nut 2 connected to the joint surface part 3, and it is characterized in that at least one V-shaped groove 8 is provided at the joint end surface of the nut 2 and the joint surface part 3; The bolt between the joint surface part 3 is also provided with a metal stop shrapnel 4; the side where the metal stop spring piece 4 contacts with the joint surface part 3 is provided with a stop boss 5; the joint surface part 3 is provided with a The groove 6 matched with the stop boss 5; the stop piece 7 is provided on the side where the metal stop shrapnel 4 is in contact with the nut 2 .

[0053] The V-shaped groove 8 is center-symmetric. Central symmetry means: when the number of V-shaped grooves is two or more. One end surface of the nut 2 is provided with a V-shaped groove 8 .

[0054] see Figure 4 , the bolt 1 is replaced by a screw, the surface where the head of the screw is in con...

Embodiment 2

[0055] Embodiment 2, referring to Fig. 2 (a) ~ (d), the anti-loosening connecting bolt includes a bolt 1 and a nut 2 connected to the joint surface part 3, and the radial direction of the bolt 1 body is arranged symmetrically along the bolt axis at least one There is a V-shaped groove 8; the threaded side of the nut 2 is provided with a metal stop shrapnel 4.

[0056] The metal stop spring 4 is arranged on the threaded side of the nut 2, which means that the metal stop spring 4 is a separate part, and the method of setting it on the thread side of the nut 2 is the same as that of the nylon ring of GB889.

Embodiment 3

[0057] Embodiment 3, referring to Fig. 3(a)-(e), the anti-loosening connecting bolt includes a bolt 1 and a nut 2 connected to the joint surface part 3, and the end surface of the bolt 1 is provided with a V-shaped groove 8; the nut 2 A metal stop shrapnel 4 is provided on the side facing the end face of the bolt 1; after the nut 1 rotates to determine the position, the stop piece 7 on the metal stop shrapnel 4 engages with the V-shaped groove 8.

[0058] The stop piece 7 on the metal stop elastic piece 4 is arranged on the end face side of the nut 2, see FIG. 3( a ). The metal stop shrapnel is an independent part, and it is arranged on the threaded side of the nut 2 in the same way as the nylon ring of GB889.

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Abstract

The invention provides an anti-loosening connecting bolt. The anti-loosening connecting bolt comprises a bolt and a nut which are connected with a joint surface part, wherein at least one V-shaped groove is formed in the joint end surface of the nut and the joint surface part; a metal stop elastic sheet is arranged between the nut and the joint surface part; a stop boss is arranged on one side, incontact with the joint surface part, of the metal stop elastic sheet; a groove matched with the stop boss is formed in the joint surface part; a stop sheet is arranged on one side, in contact with the nut, of the metal stop elastic sheet; and after the nut is fastened and is in a proper position, the metal stop elastic sheet can be meshed with the V-shaped groove in the nut under the action of elastic force, so that the anti-loosening and stop effects are achieved. The anti-loosening connecting bolt has the characteristics of reasonable and feasible structure, reliable anti-loosening effect,wide application range, easiness in manufacturing, convenience in mounting, capability of being repeatedly dismounted and used and long service life.

Description

technical field [0001] The invention belongs to the technical field of anti-loosening bolts, in particular to anti-loosening connecting bolts. Background technique [0002] The invention and application of threads has a history of at least several hundred years. When it comes to bolts, almost everyone knows it. Because bolts have entered thousands of households and are closely related to our lives. Arrive greatly to airplane, ship, train, automobile, little to mobile phone, wrist watch, toy almost all have the place to use for bolt. Although it is small, its role cannot be ignored, and it plays a decisive role. There are countless examples like this. According to relevant information, on August 20, 2007, a China Airlines Boeing 737-800 passenger plane caught fire and exploded after landing at Naha Airport in Okinawa. According to the investigation results, the fire was caused by a loose screw piercing the fuel tank, and a strong explosion occurred, and the fuselage was sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/26F16B39/32
CPCF16B39/26F16B39/32
Inventor 尹云飞王双茂
Owner 王双茂
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