CN210423379U - Bolt - Google Patents
Bolt Download PDFInfo
- Publication number
- CN210423379U CN210423379U CN201921609168.7U CN201921609168U CN210423379U CN 210423379 U CN210423379 U CN 210423379U CN 201921609168 U CN201921609168 U CN 201921609168U CN 210423379 U CN210423379 U CN 210423379U
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- China
- Prior art keywords
- nut
- bolt
- recess
- round hole
- main part
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- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
A bolt, comprising: bolt main part, nut and sealing washer, bolt main part one end integrated into one piece is equipped with the nut, and the lower terminal surface that the nut is close to bolt main part side is equipped with the radial recess of round radius and is less than the nut, and the recess cross-section is isosceles trapezoid, and isosceles trapezoid's minor face is the groove opening, and the long limit is the recess bottom, and establishes on the recess bottom by the semicircle arch, the sealing washer of embedding in the recess, and the cross-section of sealing washer is isosceles triangle, and isosceles triangle is equipped with the concave surface towards recess bottom face. The utility model has the advantages that: the automatic looseness of the bolt can be effectively avoided, the sealing ring is extruded through the mounting hole wall, the sealing ring retracts during mounting, the sealing ring overflows outwards due to the fact that the protrusion at the bottom of the groove after mounting is finished, and friction force is increased by extrusion on the mounting hole wall.
Description
Technical Field
The invention relates to a bolt capable of preventing a knob from being out due to the shape damage of a nut when the knob of the bolt is turned.
Background
Bolt and nut mating bolting is a common fastener type, but the vibration of mechanical equipment can cause the fastener to fall off and affect the normal operation of the equipment.
When the nut is tightened, the external contour is easy to deform, so that the tightening effect is poor.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a bolt capable of preventing a knob from being out due to the shape damage of a nut when the knob is screwed.
In order to achieve the purpose, the invention adopts the following technical scheme: a bolt, comprising: bolt main part, nut and sealing washer, bolt main part one end integrated into one piece is equipped with the nut, and the lower terminal surface that the nut is close to bolt main part side is equipped with the radial recess of round radius and is less than the nut, and the recess cross-section is isosceles trapezoid, and isosceles trapezoid's minor face is the groove opening, and the long limit is the recess bottom, and establishes on the recess bottom by the semicircle arch, the sealing washer of embedding in the recess, and the cross-section of sealing washer is isosceles triangle, and isosceles triangle is equipped with the concave surface towards recess bottom face.
A bolt is characterized in that a plurality of outward anti-loosening holes are formed in the side face of a nut, and embedded rubber columns are arranged in the anti-loosening holes.
A channel communicated with an anti-loosening hole is arranged at the bottom of a groove, and a bulge embedded with the channel is arranged on the bottom edge of a sealing ring and is longer than the channel.
A first round hole used for fixing a second layer of nuts is formed in each nut, a second round hole matched with the first round hole is formed in each second layer of nuts, and a connecting screw penetrates through the second round hole and the first round hole to connect the nuts with the second layer of nuts.
The outer sides of a nut and a double-layer nut are the same polygons for screwing the bolt, and the polygons are matched with an occlusion port of a wrench.
A bolt is characterized in that thread grooves are formed in a first round hole and a second round hole, and a connecting rod is provided with matched threads; the first round holes are a plurality of eccentric holes and distributed in an equilateral triangle; the second round holes are a plurality of eccentric holes and distributed in an equilateral triangle shape.
A bolt, the two-layer nut is also provided with a round hole for connecting other nuts.
The invention has the beneficial effects that: firstly, the bolt can be effectively prevented from automatically loosening, the sealing ring is retracted during installation through the extrusion of the installation hole wall, the sealing ring can be enabled to overflow outwards through the bulge at the bottom of the groove after the installation is finished, and the friction force is increased through the extrusion on the installation hole wall; secondly, nuts can be repeatedly overlapped, so that the difficulty of tightness increase caused by deformation during tightness is avoided; thirdly, the bulge of the extruded sealing ring enters the channel and penetrates through the channel to extrude the bulge of the rubber column and the side wall of the screw cap.
Drawings
Fig. 1 is a cross-sectional view of a bolt of the present invention.
Fig. 2 is a cross-sectional view of the bolt body of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, fig. 1-2 a bolt comprising: bolt main part 1, nut 2 and sealing washer 4, 1 one end of bolt main part and 2 integrated into one piece of nut, nut 2 is close to the lower terminal surface of 1 side of bolt main part and is equipped with the radial recess 3 that is less than the nut of round radius, 3 cross-sections of recess are isosceles trapezoid, isosceles trapezoid's minor face is the groove opening, the long limit is the recess bottom, and establish on the recess bottom by semicircle arch 9, 3 embedded sealing washers 4 in the recess, sealing washer 4's cross-section is isosceles triangle, and isosceles triangle is equipped with the inner concave surface towards recess bottom face. The automatic looseness of the bolt can be effectively avoided, the sealing ring is extruded through the mounting hole wall, the sealing ring retracts during mounting, the sealing ring overflows outwards due to the fact that the protrusion at the bottom of the groove after mounting is finished, and friction force is increased by extrusion on the mounting hole wall.
A bolt is provided, the side of the nut is provided with a plurality of outward anti-loose holes 10, and the anti-loose holes are internally provided with embedded rubber columns 6.
A bolt is provided, the bottom of the groove is provided with a channel 12 communicated with an anti-loosening hole 10, the bottom edge of a sealing ring 4 is provided with a bulge 5 embedded with the channel, and the bulge 5 is longer than the channel. The joint of the rubber column 6 and the bulge 5 is a right angle formed by the inclined plane matching.
A first round hole 11 used for fixing a second layer of nuts is formed in a nut 1, a second round hole matched with the first round hole is formed in the second layer of nuts 7, and a connecting screw 8 penetrates through the second round hole and the first round hole to connect the nuts with the second layer of nuts.
The outer sides of a nut and a double-layer nut are the same polygons for screwing the bolt, and the polygons are matched with an occlusion port of a wrench.
A bolt is characterized in that thread grooves are formed in a first round hole and a second round hole, and a connecting rod is provided with matched threads; the first round holes are a plurality of eccentric holes and distributed in an equilateral triangle; the second round holes are a plurality of eccentric holes and distributed in an equilateral triangle shape.
A second round hole of a bolt and a second layer of nuts is also used for connecting other nuts.
The utility model provides a three apex angle of isosceles triangle's sealing washer is handled for the fillet, and isosceles triangle is acute angle isosceles triangle.
The upper ends of a nut and a two-layer nut 7 are provided with cross-shaped or straight-shaped mounting grooves.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A bolt, comprising: bolt main part, nut and sealing washer, bolt main part one end integrated into one piece are equipped with the nut, its characterized in that: the nut is close to the lower terminal surface of bolt main part side and is equipped with the radial recess that is less than the nut of round radius, and the recess cross-section is isosceles trapezoid, and isosceles trapezoid's minor face is the groove opening, and the long limit is the recess bottom, and establishes on the recess bottom by semicircle arch, the embedded sealing washer in the recess, and the cross-section of sealing washer is isosceles triangle, and isosceles triangle is equipped with the inner concave surface towards recess bottom face.
2. A bolt according to claim 1, wherein: the side surface of the nut is provided with a plurality of outward anti-loosening holes, and the anti-loosening holes are internally provided with embedded rubber columns.
3. A bolt according to claim 2, wherein: the bottom of the groove is provided with a channel communicated with the anti-loosening hole, the bottom edge of the sealing ring is provided with a bulge embedded with the channel, and the bulge is longer than the channel.
4. A bolt according to claim 1, wherein: a first round hole used for fixing the two layers of nuts is formed in the nut, a second round hole matched with the first round hole is formed in the two layers of nuts, and the connecting screw penetrates through the second round hole and the first round hole to connect the nut and the two layers of nuts.
5. A bolt according to claim 2, wherein: the outer sides of the nut and the two layers of nuts are the same polygons for screwing the bolts, and the polygons are matched with the occlusion ports of the wrench.
6. A bolt according to claim 3, wherein: thread grooves are formed in the first round hole and the second round hole, and matched threads are formed on the connecting rod; the first round holes are a plurality of eccentric holes and distributed in an equilateral triangle; the second round holes are a plurality of eccentric holes and distributed in an equilateral triangle shape.
7. A bolt according to claim 3, wherein: the two-layer screw cap is also provided with a round hole for connecting other screw caps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921609168.7U CN210423379U (en) | 2019-09-25 | 2019-09-25 | Bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921609168.7U CN210423379U (en) | 2019-09-25 | 2019-09-25 | Bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423379U true CN210423379U (en) | 2020-04-28 |
Family
ID=70367879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921609168.7U Active CN210423379U (en) | 2019-09-25 | 2019-09-25 | Bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423379U (en) |
-
2019
- 2019-09-25 CN CN201921609168.7U patent/CN210423379U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |