CN213298537U

CN213298537U - High-strength fastening bolt for high-performance refractory steel

Info

Publication number: CN213298537U
Application number: CN202022142325.7U
Authority: CN
Inventors: 唐爱红
Original assignee: Yangzhou Yaxin Fastener Industry Co ltd
Current assignee: Yangzhou Yaxin Fastener Industry Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-05-28
Anticipated expiration: 2030-09-25

Abstract

The utility model relates to a fastener technical field just discloses a high performance fire resistant steel high strength fastening bolt, including the shank of bolt, screw thread, the swivel nut has been cup jointed in the activity of shank of bolt middle part, the swivel nut outer wall runs through the spacing groove in a direction parallel to the shank of bolt, the gag lever post has been cup jointed in the activity of spacing groove top, the second screw hole has been run through to the shank of bolt bottom. This kind of high performance fire resistant steel high strength fastening bolt, through two swivel nuts, two first screw holes have all been seted up at both ends, make this bolted connection and dismantlement can be let through simple dismantlement equipment to this bolted body, the problem that the oxidation that leads to after we used this bolt for a long time is difficult to the dismantlement has been solved, run through in bolted body top lock joint in the spacing tank bottom through the gag lever post, make swivel nuts and bolted body connection compactness, the stock screw runs through in bolted body inside, the bolt that has improved this bolt whole fastening nature and has avoided long-term use leads to self structural instability problem after receiving external factor influence.

Description

High-strength fastening bolt for high-performance refractory steel

Technical Field

The utility model relates to a fastener technical field specifically is a high performance fire resistant steel high strength fastening bolt.

Background

A bolt, a mechanical part, a cylindrical threaded fastener with a nut, a fastener composed of a head and a screw (a cylinder with an external thread), and a nut, which are matched with each other, are used for fastening and connecting two parts with through holes.

However, certain amount of abrasion of bolts used in daily life can occur in the long-term use process, parts are not firm after long-term use, the bolts are corroded by air for a long time and are difficult to disassemble, or other connected parts fall off, safety accidents can be caused, and therefore the high-performance fire-resistant steel high-strength fastening bolt is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a high performance fire resistant steel high strength fastening bolt possesses and to dismantle the washing, high strength fastening, advantages such as safety and stability have solved and have used fastening bolt long time not rinse and lead to corroding to be difficult to dismantle and long-time wearing and tearing lead to fastening unstable problem long-term when using.

(II) technical scheme

Can dismantle the washing for realizing the aforesaid, the high strength fastening, safety and stability's purpose, the utility model provides a following technical scheme: the utility model provides a high performance fire-resistant steel high strength fastening bolt, includes the shank of bolt, screw thread, first internal thread has been cup jointed in the activity of screw thread bottom, the recess has been seted up at the shank of bolt middle part, the activity of shank of bolt middle part has cup jointed the swivel nut, first screw hole has been run through at the swivel nut both ends, the swivel nut outer wall runs through the spacing groove in parallel with the shank of bolt direction, the gag lever post has been cup jointed in the activity of spacing groove top, the shank of bolt bottom has been run through the second screw hole, the stock screw has been cup jointed in the inside activity of second screw hole, the activity of stock screw below has cup jointed the internal thread of second.

Preferably, the first inner screw and the thread are movably sleeved at the upper end and the lower end of the bolt body, the inner diameter of the first inner screw is equal to that of the thread, and the outer diameter of the long rod screw is matched with that of the long rod screw.

Preferably, the swivel nut is of a semicircular convex structure, the number of the swivel nuts is two, the size of the swivel nut is equal, the shape of the swivel nut is symmetrical, two first screw holes are formed in the two ends of the swivel nut, and the size of the inner ring of the groove is larger than that of the inner ring of the swivel nut.

Preferably, the number of spacing groove is four, all winds two the parallel equidistance of swivel nut outer wall is arranged, the number of gag lever post is four, and every the length of gag lever post equals the bolt body top is arrived swivel nut bottom distance.

Preferably, the size of the second screw hole is equal to that of the first inner screw, and the second screw hole is matched with the long rod screw.

Preferably, the long rod screw penetrates through the upper end and the lower end of the bolt body.

(III) advantageous effects

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this kind of high performance fire resistant steel high strength fastening bolt, through two swivel nuts, the size equals, and the shape symmetry, and two first screw holes have all been seted up at the swivel nut both ends, and the first screw hole that two swivel nuts both ends were seted up makes this bolt body can let this bolted connection and dismantlement through simple dismantlement equipment, has solved the problem that we used the oxidation that leads to behind this bolt for a long time to be difficult to dismantle.

2. This kind of high performance fire resistant steel high strength fastening bolt runs through in bolt body top lock joint in the spacing tank bottom through four gag lever posts for swivel nut and bolt body connection compactness, stock screw run through in the internal portion of bolt, have improved the whole fastening nature of this bolt and have avoided using this bolt spare part to rock the whole fracture of bolt that leads to in the use, have avoided the bolt of long-term use to lead to self structural instability problem after receiving external factor influence.

Drawings

FIG. 1 is a schematic view of the whole structure of the present invention;

FIG. 2 is a schematic side view of the structure of the present invention;

fig. 3 is a partial schematic view of the components of the structure of fig. 2 of the present invention.

In the figure: 1. a bolt body; 2. screwing; 3. a first inner screw; 4. a thread; 5. a groove; 6. a threaded sleeve; 7. a first screw hole; 8. a limiting groove; 9. a limiting rod; 10. a second screw hole; 11. a long rod screw; 12. a second internal screw.

Detailed Description

The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Examples

Referring to fig. 1-3, a high-strength fastening bolt for high-performance refractory steel comprises a bolt body 1, a screw socket 2 and a thread 4, wherein a first inner screw 3 is movably sleeved at the bottom of the screw socket 2, a groove 5 is formed in the middle of the bolt body 1, a screw sleeve 6 is movably sleeved in the middle of the bolt body 1, first screw holes 7 are formed in two ends of the screw sleeve 6, the screw sleeve 6 is of a semi-circular convex structure, the screw sleeves 6 are equal in number, size and shape, two first screw holes 7 are formed in two ends of the screw sleeve 6, the first screw holes 7 formed in two ends of the two screw sleeves 6 enable the bolt body 1 to be connected and disassembled through simple disassembly and assembly, the size of the inner ring of the groove 5 is larger than that of the inner ring of the screw sleeve 6, a limiting groove 8 is formed in the outer wall of the screw sleeve 6 in a direction parallel to the bolt body 1, the number of the limiting grooves 8 is four, the two outer walls of the screw sleeves 6 are arranged in parallel and, spacing bar 9 has been cup jointed in the activity of 8 tops in spacing groove, the quantity of spacing bar 9 is four, and the length of every spacing bar 9 equals 1 tops of the bolt body to 6 bottom distances of swivel nut, four spacing bars 9 run through in 1 top lock joints of the bolt body in spacing groove 8 bottoms, make swivel nut 6 and 1 connection compactness of the bolt body, 1 bottom of the bolt body has run through

second screw hole

10, 10 size of a dimension of second screw hole equals with 3 size of first internal screw, all with stock screw 11 phase-matches, stock screw 11 has been cup jointed in the inside activity of second screw hole 10, stock screw 12 has been cup jointed in the activity of stock screw 11 below, stock screw 11 runs through in 1 inside the bolt body, the whole fastening nature of this bolt has been improved and has been avoided using this bolt spare part to rock the whole fracture of bolt that leads to in the use.

The working principle is as follows: at first place two swivel nuts 6 in 1 middle part recess 5 of bolt body, then make this bolt body 1 can let this bolted connection and dismantlement through simple dismantlement equipment through connecting the first screw hole 7 that two swivel nuts 6 both ends were seted up, four gag lever post 9 have been cup jointed in the activity of four spacing groove 8 tops at last, gag lever post 9 runs through in 1 top lock joints of bolt body in the 8 bottoms of spacing groove, make swivel nut 6 and bolt body 1 connect the compactness, cup joint the first internal thread 3 that the size equals and the activity of second internal thread 12 in stock screw 11 both ends, stock screw 11 runs through inside 1 bolt body, the whole fastening nature of this bolt has been improved and has been avoided using the whole fracture of bolt that this bolt spare part rocks the result in the use.

In summary, the high-strength fastening bolt made of the high-performance refractory steel has the same size and symmetrical shape through the two screw sleeves 6, the two ends of each screw sleeve 6 are provided with the two first screw holes 7, and the first screw holes 7 arranged at the two ends of each screw sleeve 6 enable the bolt body 1 to be connected and disassembled through simple disassembly and assembly, so that the problem that the bolt is difficult to disassemble due to oxidation after being used for a long time is solved; run through in 1 top lock joint of bolt body in the spacing groove 8 bottom through four gag lever posts 9 for swivel nut 6 and the 1 connection compactness of bolt body, stock screw 11 runs through in 1 inside the bolt body, the whole fastening nature of this bolt has been improved and has been avoided using this bolt spare part to rock the whole fracture of bolt that leads to in the use, the bolt of having avoided long-term use leads to self structural instability problem after receiving external factor influence, it leads to corroding to be difficult to dismantle and long-time wearing and tearing lead to the unstable problem of fastening to have solved long-term use fastening bolt time and not wash.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high performance fire resistant steel high strength fastening bolt, includes bolt body (1), screw thread (2), screw thread (4), its characterized in that: screw (2) bottom activity has cup jointed first interior screw (3), screw body (1) middle part is seted up fluted (5), screw body (1) middle part activity has cup jointed swivel nut (6), first screw hole (7) have been run through at swivel nut (6) both ends, spacing groove (8) have been run through in swivel nut (6) outer wall is on a parallel with screw body (1) direction, gag lever post (9) have been cup jointed in spacing groove (8) top activity, screw body (1) bottom has run through second screw hole (10), stock screw (11) have been cup jointed in second screw hole (10) inside activity, stock screw (11) below activity has cup jointed second interior screw (12).

2. The high-strength fastening bolt of high-performance refractory steel according to claim 1, characterized in that: the first inner screw (3) and the thread (4) are movably sleeved at the upper end and the lower end of the bolt body (1), the size of the inner diameter of the first inner screw (3) is equal to that of the inner diameter of the thread (4), and the outer diameters of the long rod screws (11) are matched.

3. The high-strength fastening bolt of high-performance refractory steel according to claim 1, characterized in that: the swivel nut (6) is semicircle convex structure, the quantity of swivel nut (6) is two, and the size equals, and the shape symmetry, just two have all been seted up at swivel nut (6) both ends first screw hole (7), recess (5) inner circle size is greater than swivel nut (6) inner circle size.

4. The high-strength fastening bolt of high-performance refractory steel according to claim 1, characterized in that: the quantity of spacing groove (8) is four, all winds two the parallel equidistance of swivel nut (6) outer wall is arranged, the quantity of gag lever post (9) is four, and every the length of gag lever post (9) equals the bolt body (1) top is arrived swivel nut (6) bottom distance.

5. The high-strength fastening bolt of high-performance refractory steel according to claim 1, characterized in that: the size of the second screw hole (10) is equal to that of the first inner screw (3), and the second screw hole and the first inner screw are matched with the long rod screw (11).

6. The high-strength fastening bolt of high-performance refractory steel according to claim 1, characterized in that: the long rod screw (11) penetrates through the upper end and the lower end of the bolt body (1).