CN208546409U - A kind of flexible Anti-off bolt of petrochemical industry - Google Patents
A kind of flexible Anti-off bolt of petrochemical industry Download PDFInfo
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- CN208546409U CN208546409U CN201820989956.2U CN201820989956U CN208546409U CN 208546409 U CN208546409 U CN 208546409U CN 201820989956 U CN201820989956 U CN 201820989956U CN 208546409 U CN208546409 U CN 208546409U
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- screw rod
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- bolt
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Abstract
The utility model discloses a kind of flexible Anti-off bolts of petrochemical industry, including hexagonal screw head, first screw rod, rubber sheet gasket, second screw rod, nut shim, nut, support rotation bolt, fixation and reinforcement gasket, the top of first screw rod is equipped with the first screw rod circular arc, the side of first screw rod circular arc is to central axes direction indent, the outside of the first screw rod circular arc is equipped with rubber sheet gasket, the top of first screw rod is connected with hexagonal screw head and the second screw rod respectively with bottom end, the outside of second screw rod is equipped with screw thread, the top of second screw rod is equipped with the second screw rod circular arc, the side of the second screw rod circular arc is to central axes direction indent, the outside of the second screw rod circular arc, which is equipped with, reinforces gasket, whole reusing is good, structure is simple, intensity is big, anti-loosing effect is good.
Description
[technical field]
The utility model relates to the technical field of bolt, the technical field of the flexible Anti-off bolt of especially a kind of petrochemical industry.
[background technique]
In oil field, bolt is commonly used to connect petroleum pipeline, due to often having petroleum leaching in petroleum pipeline transportational process
In pipe surface, so that connector bolt is immersed in petroleum, common bolt includes screw rod and nut, and the surface of screw rod is set
There is external screw thread, the inner wall of nut is equipped with internal screw thread, and the external screw thread of screw rod and the internal screw thread of nut are adapted, in bolt surface
Petroleum can make the connection between screw rod and nut become not firm after external screw thread and internal screw thread, meet vibration in pipeline
In the case where, nut is easy to slide from screw rod, when serious, can fall off from screw rod, and oil drilling and related ancillary equipment are used
The working environment of bolt is poor, if loosening occurs in the bolt of certain key components, will affect the normal work of equipment, very
To may cause safety accident.
[utility model content]
The purpose of this utility model is exactly to solve the problems of the prior art, proposes a kind of flexible Anti-off bolt of petrochemical industry,
It can be equipped between the first screw rod and the second screw rod by being equipped with the first screw rod circular arc between hexagonal screw head and the first screw rod
Second screw rod circular arc, since the transition position and bolt of the ending of the screw thread on bolt, especially screw thread, screw head and screw rod are transversal
Stress concentration can all occur for changed position of area etc., and the first screw rod circular arc and the second screw rod circular arc reduce stress collection
In degree, increase the intensity of changeover portion between hexagonal screw head, the first screw rod and the second screw rod；The inside of first screw rod is equipped with
First through hole and the second through-hole, first through hole and the second through-hole make the inside of the first screw rod hollow in part, reduce entirety
Rigidity, can effectively absorb energy of the bolt by shock and vibration when, further increase the flexibility of bolt；It imports head and assists spiral shell
In the more convenient insertion fixation of bolt；Support rotation bolt screws in the second screw rod, and moving sheet tightly blocks nut so that nut with
The closer fitting of bolt, support rotation bolt screw out the second screw rod, and spring again resets moving sheet, and moving sheet no longer tightly blocks spiral shell
Mother, whole reusing is good, and structure is simple, and intensity is big, and anti-loosing effect is good.
To achieve the above object, the utility model proposes a kind of flexible Anti-off bolt of petrochemical industry, including hexagonal screw head, the
One screw rod, rubber sheet gasket, the second screw rod, nut shim, nut, support rotation bolt, fixation and reinforcement gasket, first spiral shell
The top of bar is equipped with the first screw rod circular arc, and the side of the first screw rod circular arc is to central axes direction indent, the first screw rod circular arc
Outside be equipped with rubber sheet gasket, the top of first screw rod is connected with hexagonal screw head and the second screw rod respectively with bottom end,
The outside of second screw rod is equipped with screw thread, and the top of second screw rod is equipped with the second screw rod circular arc, the second screw rod circle
To central axes direction indent, the outside of the second screw rod circular arc, which is equipped with, reinforces gasket for the side of arc.
Preferably, the top of the hexagonal screw head is equipped with first through hole and the second through-hole, the first through hole and second
Through-hole runs through hexagonal screw head and the first screw rod, and the radius of the first through hole is greater than the radius of the second through-hole, second through-hole
It is arranged around first through hole, the quantity of the second through-hole is 4 to 8.
Preferably, be additionally provided on second screw rod spring fixed seat, spring, moving sheet, third through-hole, import head and
Limiting slot, the spring fixed seat are set to the top of the second screw rod, and the quantity of the moving sheet is 3 to 6, and the moving sheet is set
In limiting slot, the upper end of the moving sheet is equipped with perforation, and the separate axle center face of moving sheet is matte portion, the length in the matte portion
Degree is the 2/3 to 3/4 of the second spiro rod length, and the top and bottom end of the spring are connected with spring fixed seat and perforation respectively,
The third through-hole is divided into cylindrical portion and pointed nose, and the depth of the third through-hole is the 2/3 to 3/4 of the second spiro rod length, institute
Being internally threaded for cylindrical portion is stated, cylindrical portion is through importing head.
Preferably, the lower end of second screw rod, which screws in, nut shim and nut, the fixation is fixed on
Between rubber sheet gasket and nut shim, the bottom end of second screw rod, which screws in, support rotation bolt, and the support rotation bolt includes pushing
Portion, screw-in portion and rotation bolt head, the outside in the screw-in portion are equipped with screw thread, and the bottom end in the screw-in portion is equipped with cannelure and translot, indulges
Slot and translot constitute cross.
The utility model has the beneficial effects that the utility model between hexagonal screw head and the first screw rod by being equipped with the first spiral shell
Bar circular arc is equipped with the second screw rod circular arc, due to the screw thread on bolt, especially screw thread between the first screw rod and the second screw rod
Changed position of transition position and screw cross-section product of ending, screw head and screw rod etc. can all occur stress and concentrate, and the
One screw rod circular arc and the second screw rod circular arc reduce the degree of stress concentration, increase hexagonal screw head, the first screw rod and the second spiral shell
The intensity of changeover portion between bar；The inside of first screw rod is equipped with first through hole and the second through-hole, and first through hole and the second through-hole make
The inside for obtaining the first screw rod is hollow in part, reduces whole rigidity, when can effectively absorb bolt by shock and vibration
Energy further increases the flexibility of bolt；It imports in the more convenient insertion fixation of head auxiliary bolt；Support rotation bolt screws in second
Screw rod, moving sheet tightly block nut so that nut with bolt is closer is bonded, support rotation bolt screws out the second screw rod, bullet
Spring again resets moving sheet, and moving sheet no longer tightly blocks nut, and whole reusing is good, and structure is simple, and intensity is big, locking
Effect is good.
The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of flexible Anti-off bolt main view of petrochemical industry of the utility model；
Fig. 2 is a kind of top view of the hexagonal screw head of the flexible Anti-off bolt of petrochemical industry of the utility model；
Fig. 3 is a kind of main view of the second screw rod of the flexible Anti-off bolt of petrochemical industry of the utility model；
Fig. 4 is a kind of main view of the moving sheet of the flexible Anti-off bolt of petrochemical industry of the utility model；
Fig. 5 is a kind of main view of the support rotation bolt of the flexible Anti-off bolt of petrochemical industry of the utility model；
Fig. 6 is a kind of bottom view of the support rotation bolt of the flexible Anti-off bolt of petrochemical industry of the utility model；
In figure: 1- hexagonal screw head, 11- first through hole, the second through-hole of 12-, the first screw rod of 2-, the first screw rod of 21- circular arc, 3-
Rubber sheet gasket, the second screw rod of 4-, the second screw rod of 41- circular arc, 42- spring fixed seat, 43- spring, 44- moving sheet, 441- perforation,
442- matte portion, 45- third through-hole, 451- cylindrical portion, 452- pointed nose, 46- import head, 47- limiting slot, 5- nut shim,
6- nut, 7- support rotation bolt, the pushing part 71-, 72- screw-in portion, 73- revolve bolt head, 731- cannelure, 732- translot, 8- fixation
Reinforce gasket with 9-.
[specific embodiment]
Refering to fig. 1, a kind of petrochemical industry of Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 the utility model flexible Anti-off bolt, including hexagonal
Screw head 1, the first screw rod 2, rubber sheet gasket 3, the second screw rod 4, nut shim 5, nut 6, support rotation bolt 7, fixation 8 and reinforcement
Gasket 9, the top of first screw rod 2 are equipped with the first screw rod circular arc 21, and the side of the first screw rod circular arc 21 is to central axes direction
Indent, the outside of the first screw rod circular arc 21 are equipped with rubber sheet gasket 3, the top and bottom end of first screw rod 2 respectively with
Hexagonal screw head 1 is connected with the second screw rod 4, and the outside of second screw rod 4 is equipped with screw thread, and the top of second screw rod 4 is set
There is the second screw rod circular arc 41, the side of the second screw rod circular arc 41 is to central axes direction indent, the second screw rod circular arc 41
Outside be equipped with and reinforce gasket 9, the top of the hexagonal screw head 1 is equipped with first through hole 11 and the second through-hole 12, and described first is logical
Hole 11 and the second through-hole 12 run through hexagonal screw head 1 and the first screw rod 2, and the radius of the first through hole 11 is greater than the second through-hole 12
Radius, second through-hole 12 are arranged around first through hole 11, and the quantity of the second through-hole 12 is 4 to 8, second screw rod 4
On be additionally provided with spring fixed seat 42, spring 43, moving sheet 44, third through-hole 45, import head 46 and limiting slot 47, the spring is solid
Reservation 42 is set to the top of the second screw rod 4, and the quantity of the moving sheet 44 is 3 to 6, and the moving sheet 44 is placed in limiting slot 47
In, the upper end of the moving sheet 44 is equipped with perforation 441, and the separate axle center face of moving sheet 44 is matte portion 442, the matte portion
442 length be 4 length of the second screw rod 2/3 to 3/4, the top and bottom end of the spring 43 respectively with spring fixed seat 42 and
Perforation 441 is connected, and the third through-hole 45 divides for cylindrical portion 451 and pointed nose 452, and the depth of the third through-hole 45 is the
The 2/3 to 3/4 of two screw rods, 4 length, the cylindrical portion 451 is internally threaded, and cylindrical portion 451 is described through importing head 46
The lower end of second screw rod 4, which screws in, nut shim 5 and nut 6, and the fixation 8 is fixed on rubber sheet gasket 3 and nut pad
Between piece 5, the bottom end of second screw rod 4, which screws in, support rotation bolt 7, and the support rotation bolt 7 includes pushing part 71, screw-in portion 72
With rotation bolt head 73, the outside in the screw-in portion 72 is equipped with screw thread, and the bottom end in the screw-in portion 72 is equipped with cannelure 731 and translot 732,
Cannelure 731 and translot 732 constitute cross.
Utility model works process:
Fixation 8 during the work time, is passed through second first with flexible Anti-off bolt by a kind of petrochemical industry of the utility model
Screw rod 4 and the first screw rod 2, then nut shim 5 and nut 6 are spun on the second screw rod 4, fixation 8 is fixed on rubber pad
Between piece 3 and nut shim 5, support rotation bolt 7 is screwed among third through-hole 45, with the screw-in of support rotation bolt 7, pushing part 71
It moves up and moving sheet 44 is pushed to move out along limiting slot 47 far from axle center, moving sheet 44 blocks nut 2, so that nut
2 with the second screw rod 4 is even closer is bonded, if screwing out support rotation bolt 7, pushing part 71 is moved down, and spring 43 pulls moving sheet 44
It inwardly sets back along limiting slot 47 close to axle center, moving sheet 44 no longer blocks nut 2.The utility model in hexagonal screw head and
It is equipped with the first screw rod circular arc between first screw rod, the second screw rod circular arc is equipped between the first screw rod and the second screw rod, due to spiral shell
The ending of screw thread on bolt, especially screw thread, the transition position of screw head and screw rod and the changed position of screw cross-section product
Stress can occur Deng all to concentrate, and the first screw rod circular arc and the second screw rod circular arc reduce the degree of stress concentration, increase six
The intensity of changeover portion between angle screw head, the first screw rod and the second screw rod；The inside of first screw rod is equipped with first through hole and second and leads to
Hole, first through hole and the second through-hole make the inside of the first screw rod hollow in part, reduce whole rigidity, can effectively inhale
Energy of the bolt by shock and vibration when is received, the flexibility of bolt is further increased；The more convenient insertion of head auxiliary bolt is imported to be consolidated
In earnest；Support rotation bolt screws in the second screw rod, and moving sheet tightly blocks nut so that nut with bolt is closer is bonded,
Support rotation bolt screws out the second screw rod, and spring again resets moving sheet, and moving sheet no longer tightly blocks nut, whole reusing
Good, structure is simple, and intensity is big, and anti-loosing effect is good.
Above-described embodiment is the explanation to the utility model, is not the restriction to the utility model, and any pair of sheet is practical new
Scheme after type simple transformation belongs to the protection scope of the utility model.
Claims (4)
1. a kind of flexible Anti-off bolt of petrochemical industry, it is characterised in that: including hexagonal screw head (1), the first screw rod (2), rubber sheet gasket
(3), the second screw rod (4), nut shim (5), nut (6), support rotation bolt (7), fixation (8) and reinforcement gasket (9), it is described
The top of first screw rod (2) is equipped with the first screw rod circular arc (21), the side of the first screw rod circular arc (21) to central axes direction indent,
The outside of the first screw rod circular arc (21) is equipped with rubber sheet gasket (3), the top of first screw rod (2) and bottom end respectively with
Hexagonal screw head (1) is connected with the second screw rod (4), and the outside of second screw rod (4) is equipped with screw thread, second screw rod (4)
Top be equipped with the second screw rod circular arc (41), the side of the second screw rod circular arc (41) is to central axes direction indent, described the
The outside of two screw rod circular arcs (41), which is equipped with, reinforces gasket (9).
2. a kind of flexible Anti-off bolt of petrochemical industry as described in claim 1, it is characterised in that: the top of the hexagonal screw head (1)
End is equipped with first through hole (11) and the second through-hole (12), and the first through hole (11) and the second through-hole (12) run through hexagonal screw head
(1) and the first screw rod (2), the radius of the first through hole (11) are greater than the radius of the second through-hole (12), second through-hole
(12) it is arranged around first through hole (11), the quantity of the second through-hole (12) is 4 to 8.
3. a kind of flexible Anti-off bolt of petrochemical industry as described in claim 1, it is characterised in that: on second screw rod (4) also
Equipped with spring fixed seat (42), spring (43), moving sheet (44), third through-hole (45), import head (46) and limiting slot (47), institute
The top that spring fixed seat (42) are set to the second screw rod (4) is stated, the quantity of the moving sheet (44) is 3 to 6, the moving sheet
(44) it is placed in limiting slot (47), the upper end of the moving sheet (44) is equipped with perforation (441), the separate axle center face of moving sheet (44)
For matte portion (442), the length of the matte portion (442) is the 2/3 to 3/4 of the second screw rod (4) length, the spring (43)
Top and bottom end are connected with spring fixed seat (42) and perforation (441) respectively, and the third through-hole (45) is divided into cylindrical portion
(451) and pointed nose (452), the depth of the third through-hole (45) are the 2/3 to 3/4 of the second screw rod (4) length, the cylinder
Portion (451) are internally threaded, and cylindrical portion (451) is through importing head (46).
4. a kind of flexible Anti-off bolt of petrochemical industry as described in claim 1, it is characterised in that: under second screw rod (4)
End, which screws in, nut shim (5) and nut (6), and the fixation (8) is fixed on rubber sheet gasket (3) and nut shim (5)
Between, the bottom end of second screw rod (4), which screws in, support rotation bolt (7), and support rotation bolt (7) includes pushing part (71), rotation
Enter portion (72) and rotation bolt head (73), the outside of the screw-in portion (72) is equipped with screw thread, and the bottom end of the screw-in portion (72) is equipped with vertical
Slot (731) and translot (732), cannelure (731) and translot (732) constitute cross.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820989956.2U CN208546409U (en) | 2018-06-26 | 2018-06-26 | A kind of flexible Anti-off bolt of petrochemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820989956.2U CN208546409U (en) | 2018-06-26 | 2018-06-26 | A kind of flexible Anti-off bolt of petrochemical industry |
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| Publication Number | Publication Date |
|---|---|
| CN208546409U true CN208546409U (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820989956.2U Active CN208546409U (en) | 2018-06-26 | 2018-06-26 | A kind of flexible Anti-off bolt of petrochemical industry |
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| CN (1) | CN208546409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644207A (en) * | 2018-06-26 | 2018-10-12 | 浙江长瑞精密零部件制造有限公司 | A kind of flexible Anti-off bolt of petrochemical industry |
-
2018
- 2018-06-26 CN CN201820989956.2U patent/CN208546409U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644207A (en) * | 2018-06-26 | 2018-10-12 | 浙江长瑞精密零部件制造有限公司 | A kind of flexible Anti-off bolt of petrochemical industry |
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