CN217002616U - Torsional shear type high-strength bolt pair - Google Patents
Torsional shear type high-strength bolt pair Download PDFInfo
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- CN217002616U CN217002616U CN202220381715.6U CN202220381715U CN217002616U CN 217002616 U CN217002616 U CN 217002616U CN 202220381715 U CN202220381715 U CN 202220381715U CN 217002616 U CN217002616 U CN 217002616U
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Abstract
The utility model relates to the technical field of bolts, in particular to a torsional shear type high-strength bolt pair which comprises a bolt head, wherein the top of the bolt head is fixedly connected with a main column, the top of the main column is fixedly connected with a stud, the outer surface of the main column is movably connected with a check washer, the outer surface of the stud is in threaded connection with a first nut, and the top of the first nut is provided with a circle of clamping groove. The utility model has the advantages that: the positioning pin can be inserted through the through hole until the bottom end of the positioning pin enters the clamping groove, and at the moment, the bottom end of the positioning pin can be hammered into the clamping groove and clamped by using tools such as a small hammer and the like, so that the second nut is tightly connected with the first nut, the positioning pin further prevents the first nut from loosening, and the first nut can be blocked by the positioning pin and the second nut when the first nut loosens, slides or rotates, so that the second nut has a better anti-loosening effect when being matched with the positioning pin; this turn round and cut type high strength bolt pair and satisfy high strength connection requirement, structural strength is high, and the durability is good.
Description
Technical Field
The utility model relates to the technical field of bolts, in particular to a torsional shear type high-strength bolt pair.
Background
Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection. A twist shear bolt is a high strength bolt, commonly found in steel structures, the bolt head of which is round. Because the torsional shear bolt is a high-strength bolt, the anti-loosening requirement is higher, and the conventional anti-loosening modes such as anti-loosening gaskets, anti-loosening nuts and the like are often applied to the conventional torsional shear bolt, so that the anti-loosening effect is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a torsional shear type high-strength bolt pair.
The purpose of the utility model is realized by the following technical scheme: the torsional shear type high-strength bolt pair comprises a bolt head, wherein the top of the bolt head is fixedly connected with a main column, and the top of the main column is fixedly connected with a stud;
the outer surface of the main column is movably connected with a check washer, the outer surface of the stud is in threaded connection with a first nut, the top of the first nut is provided with a circle of clamping groove, the whole clamping groove is in a circle shape, the vertical section of the clamping groove is in a trapezoid shape, and the top opening of the clamping groove is large in width and the bottom surface of the clamping groove is small in width;
the outer surface of the stud is in threaded connection with a second nut, the second nut is pressed above the first nut, two through holes are formed in the second nut, positioning pins are inserted in the two through holes, pin heads are fixedly connected to the tops of the positioning pins, and the bottom ends of the positioning pins protrude out of the bottom of the second nut and are clamped in the clamping grooves.
Optionally, the bolt head, the main column and the stud are of an integral structure, and the bolt head, the main column and the stud are all made of steel.
Optionally, the anti-loosening gasket is made of spring steel, and the bottom of the first nut is fixedly connected with the anti-loosening gasket.
Optionally, the top of the clamping groove faces the two through holes of the second nut, and the through holes are aligned with the clamping groove all the time.
Optionally, the height of the second nut is smaller than that of the positioning pin, and the diameter of the through hole is smaller than that of the pin head.
Optionally, the positioning pin and the pin head are of an integral structure, and the vertical cross section of the bottom end of the positioning pin is trapezoidal.
Optionally, the height that the locating pin protrudes the bottom of the second nut is less than the height of the clamping groove, the locating pin is hammered into the clamping groove and clamped at the bottom end of the locating pin through tools such as a small hammer, the locating pin further prevents the first nut from loosening, and the locating pin can be obstructed by the locating pin and the second nut when the first nut is loosened, slides or rotates, so that the locking effect that the second nut is matched with the locating pin to play is better.
The utility model has the following advantages:
1. the torsional shear type high-strength bolt pair can play a conventional anti-loose effect under the matching action of the anti-loose gasket, the anti-skid gasket at the bottom of the first nut and the second nut serving as the anti-loose nut, further, a circle of clamping groove is formed in the top of the first nut, the whole clamping groove is in a circle shape, the vertical cross section of the clamping groove is in a trapezoid shape, the width of the top opening of the clamping groove is large, the width of the bottom surface of the clamping groove is small, the second nut is screwed and tightened after the first nut is tightened to the top of the anti-loose gasket and is pressed on the first nut, the through hole is always aligned with the clamping groove, the positioning pin can be inserted into the through hole until the bottom end of the positioning pin enters the clamping groove, the bottom end of the positioning pin can be hammered into the clamping groove and tightly clamped by using tools such as a small hammer, so that the second nut is tightly connected with the first nut, the positioning pin further prevents the first nut from loosening, and the first nut from loosening when the first nut is loosened, Can receive the hindrance of locating pin and second nut when sliding or rotating to the locking effect that second nut cooperation locating pin played is better.
2. This turn round and cut type high strength bolt pair utilizes the mating reaction of second nut, draw-in groove, through-hole and locating pin, and the locking effect of playing is better to this turn round and cut type high strength bolt pair satisfies the high strength connection requirement, and structural strength is high, and the durability is good.
Drawings
FIG. 1 is a schematic diagram of a first perspective of the present invention;
FIG. 2 is a schematic diagram of a second perspective of the present invention;
FIG. 3 is a schematic view of a first nut of the present invention;
FIG. 4 is a schematic structural view of a second nut of the present invention;
FIG. 5 is a schematic structural view of a locating pin according to the present invention;
FIG. 6 is a schematic view of the structure of the through hole of the present invention;
FIG. 7 is a schematic cross-sectional view of the locating pin of the present invention.
In the figure: the bolt comprises the following components, by weight, 1-a bolt head, 2-a main column, 3-a stud, 4-a check washer, 5-a first nut, 6-a clamping groove, 7-a second nut, 8-a through hole, 9-a positioning pin and 10-a pin head.
Detailed Description
The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.
The first embodiment is as follows:
as shown in fig. 1-7, the torsional shear type high-strength bolt pair includes a bolt head 1, a main column 2 fixedly connected to the top of the bolt head 1, and a stud 3 fixedly connected to the top of the main column 2;
the outer surface of the main column 2 is movably connected with a check washer 4, the outer surface of the stud 3 is in threaded connection with a first nut 5, the top of the first nut 5 is provided with a circle of clamping groove 6, the whole clamping groove 6 is in a circle shape, the vertical section of the clamping groove 6 is in a trapezoid shape, and the top opening of the clamping groove 6 is large in width and the bottom surface of the clamping groove 6 is small in width;
the outer surface threaded connection of double-screw bolt 3 has second nut 7, and second nut 7 presses in the top of first nut 5, has seted up two through-holes 8 on the second nut 7, has pegged graft in two through-holes 8 and has connect locating pin 9, and the top fixedly connected with round pin head 10 of locating pin 9, the bottom of locating pin 9 protrusion second nut 7 is blocked in draw-in groove 6.
As a preferred technical scheme of the utility model: the bolt head 1, the main column 2 and the stud 3 are of an integral structure, the bolt head 1, the main column 2 and the stud 3 are all made of No. 45 steel, the anti-loosening gasket 4 is made of spring steel, the bottom of the first nut 5 is fixedly connected with an anti-skidding gasket, the top of the clamping groove 6 is over against two through holes 8 of the second nut 7, and the through holes 8 are always aligned with the clamping groove 6;
example two:
the height of the second nut 7 is smaller than that of the positioning pin 9, the diameter of the through hole 8 is smaller than that of the pin head 10, the positioning pin 9 and the pin head 10 are of an integral structure, the vertical section of the bottom end of the positioning pin 9 is trapezoidal, the height of the positioning pin 9 protruding out of the bottom of the second nut 7 is smaller than that of the clamping groove 6, and the bottom end of the positioning pin 9 is hammered into the clamping groove 6 and clamped by the positioning pin 9 through tools such as a small hammer.
The working process of the utility model is as follows:
with 3 jacks of king post 2 and double-screw bolt, first nut 5 is screwed up behind locking washer 4 tops, screws up second nut 7 and screws up to press on first nut 5, draw-in groove 6 is aimed at all the time to through-hole 8 this moment, and locating pin 9 is pegged graft to accessible through-hole 8 this moment, gets into draw-in groove 6 up to locating pin 9 bottom, can use instruments such as little hammer this moment to pound into draw-in groove 6 and chucking the 9 bottoms of locating pin, accomplishes this and turns round the installation of cutting the bolt.
To sum up, when the twist-shear type high-strength bolt pair is used, under the matching action of the anti-slip gasket 4, the anti-slip gasket at the bottom of the first nut 5 and the second nut 7 serving as the anti-slip nut, a conventional anti-slip effect can be achieved, furthermore, a circle of clamping groove 6 is formed in the top of the first nut 5, the clamping groove 6 is integrally in a circle shape, the vertical cross section of the clamping groove 6 is in a trapezoid shape, the top opening of the clamping groove 6 is wide, the bottom surface of the clamping groove 6 is small in width, after the first nut 5 is screwed on the top of the anti-slip gasket 4, the second nut 7 is screwed and pressed on the first nut 5, the through hole 8 is always aligned with the clamping groove 6, the positioning pin 9 can be inserted into the through hole 8 until the bottom end of the positioning pin 9 enters the clamping groove 6, at this time, a tool such as a small hammer can be used for pounding and clamping the bottom end of the positioning pin 9 into the clamping groove 6, so that the second nut 7 is tightly connected with the first nut 5, the positioning pin 9 further prevents the first nut 5 from loosening, and meanwhile, the first nut 5 can be hindered by the positioning pin 9 and the second nut 7 when loosening, sliding or rotating, so that the second nut 7 has a better anti-loosening effect by matching with the positioning pin 9; utilize the mating reaction of second nut 7, draw-in groove 6, through-hole 8 and locating pin 9, the locking effect that plays is better to this torsional shear type high strength bolt pair satisfies the high strength connection requirement, and structural strength is high, and the durability is good.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. Turn round and cut type high strength bolt pair, its characterized in that: the bolt comprises a bolt head (1), wherein the top of the bolt head (1) is fixedly connected with a main column (2), and the top of the main column (2) is fixedly connected with a stud (3);
the outer surface of the main column (2) is movably connected with a check washer (4), the outer surface of the stud (3) is in threaded connection with a first nut (5), the top of the first nut (5) is provided with a circle of clamping groove (6), the whole clamping groove (6) is in a circular ring shape, the vertical section of the clamping groove (6) is in a trapezoid shape, and the width of the top opening of the clamping groove (6) is larger than that of the bottom surface of the clamping groove;
the outer surface of the stud (3) is in threaded connection with a second nut (7), the second nut (7) is pressed above the first nut (5), two through holes (8) are formed in the second nut (7), positioning pins (9) are inserted in the two through holes (8), pin heads (10) are fixedly connected to the tops of the positioning pins (9), and the bottom ends of the positioning pins (9) protrude out of the bottom of the second nut (7) and are clamped in the clamping grooves (6).
2. The twist-shear type high-strength bolt pair as claimed in claim 1, wherein: the bolt head (1), the main column (2) and the stud (3) are of an integral structure, and the bolt head (1), the main column (2) and the stud (3) are all made of No. 45 steel.
3. The torsional shear type high-strength bolt pair as claimed in claim 1, wherein: the locking gasket (4) is made of spring steel, and the bottom of the first nut (5) is fixedly connected with the locking gasket.
4. The torsional shear type high-strength bolt pair as claimed in claim 1, wherein: the top of the clamping groove (6) is over against the two through holes (8) of the second nut (7).
5. The twist-shear type high-strength bolt pair as claimed in claim 1, wherein: the height of the second nut (7) is smaller than that of the positioning pin (9), and the diameter of the through hole (8) is smaller than that of the pin head (10).
6. The twist-shear type high-strength bolt pair as claimed in claim 1, wherein: the positioning pin (9) and the pin head (10) are of an integral structure, and the vertical section of the bottom end of the positioning pin (9) is trapezoidal.
7. The twist-shear type high-strength bolt pair as claimed in claim 1, wherein: the height of the positioning pin (9) protruding out of the bottom of the second nut (7) is smaller than that of the clamping groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220381715.6U CN217002616U (en) | 2022-02-24 | 2022-02-24 | Torsional shear type high-strength bolt pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220381715.6U CN217002616U (en) | 2022-02-24 | 2022-02-24 | Torsional shear type high-strength bolt pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217002616U true CN217002616U (en) | 2022-07-19 |
Family
ID=82394352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220381715.6U Active CN217002616U (en) | 2022-02-24 | 2022-02-24 | Torsional shear type high-strength bolt pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217002616U (en) |
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2022
- 2022-02-24 CN CN202220381715.6U patent/CN217002616U/en active Active
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