CN108644207A - A kind of flexible Anti-off bolt of petrochemical industry - Google Patents
A kind of flexible Anti-off bolt of petrochemical industry Download PDFInfo
- Publication number
- CN108644207A CN108644207A CN201810669025.9A CN201810669025A CN108644207A CN 108644207 A CN108644207 A CN 108644207A CN 201810669025 A CN201810669025 A CN 201810669025A CN 108644207 A CN108644207 A CN 108644207A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- hole
- screw
- bolt
- circular arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002787 reinforcement Effects 0.000 claims abstract description 4
- 230000008676 import Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 210000003128 head Anatomy 0.000 description 10
- 210000001331 nose Anatomy 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/284—Locking by means of elastic deformation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention 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, it is simple in structure, intensity is big, anti-loosing effect is good.
Description
【Technical field】
The present invention relates to the technical field of bolt, the technical field of the flexible Anti-off bolt of especially a kind of petrochemical industry.
【Background technology】
In oil field, bolt is commonly used to connect petroleum pipeline, due in petroleum pipeline transportational process, often there is oil leaching
In pipe surface, so that connector bolt is immersed in oil, common bolt includes screw rod and nut, and the surface of screw rod is set
There are external screw thread, the inner wall of nut to be equipped with internal thread, the external screw thread of screw rod and the internal thread of nut are adapted, in bolt surface
Oil can make the connection between screw rod and nut become not firm after external screw thread and internal thread, and vibration is met in pipeline
In the case of, 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, can influence the normal work of equipment, very
Safety accident may extremely be caused.
【Invention content】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of flexible Anti-off bolt of petrochemical industry, can
By being equipped with the first screw rod circular arc between hexagonal screw head and the first screw rod, second is equipped between the first screw rod and the second screw rod
Screw rod circular arc, since the transition position and screw cross-section of the ending of the screw thread on bolt, especially screw thread, screw head and screw rod accumulate
Stress concentration can all occur for changed position etc., and the first screw rod circular arc and the second screw rod circular arc reduce stress concentration
Degree increases the intensity of changeover portion between hexagonal screw head, the first screw rod and the second screw rod；First screw rod is internally provided with first
Through-hole and the second through-hole, first through hole and the second through-hole so that the inside of the first screw rod is hollow in part, reduce whole rigid
Degree, can effectively absorb energy of the bolt by shock and vibration when, further increase the flexibility of bolt；Import head auxiliary bolt more
Facilitate and is inserted into fixation；Support rotation bolt screws in the second screw rod, and moving sheet tightly blocks nut, so that nut and bolt
Closer fitting, support rotation bolt screw out the second screw rod, and spring again resets moving sheet, and moving sheet no longer tightly blocks nut, whole
Body reusing is good, simple in structure, and intensity is big, and anti-loosing effect is good.
To achieve the above object, the present invention proposes a kind of flexible Anti-off bolt of petrochemical industry, including hexagonal screw head, the first spiral shell
Bar, rubber sheet gasket, the second screw rod, nut shim, nut, support rotation bolt, fixation and reinforcement gasket, first screw rod
Top is equipped with the first screw rod circular arc, the side of the first screw rod circular arc to central axes direction indent, the first screw rod circular arc it is outer
Side is equipped with rubber sheet gasket, and the top of first screw rod is connected with hexagonal screw head and the second screw rod respectively with bottom end, described
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 circular arc
To central axes direction indent, the outside of the second screw rod circular arc, which is equipped with, reinforces gasket for side.
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 more 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.
There are nut shim and nut, the fixation to be fixed on preferably, the lower end of second screw rod screws in
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
The outside of portion, screw-in portion and rotation bolt head, the screw-in portion is equipped with screw thread, and the bottom end in the screw-in portion is equipped with pod and translot, indulges
Slot and translot constitute cross.
Beneficial effects of the present invention：The present invention by between hexagonal screw head and the first screw rod be equipped with the first screw rod circular arc,
The second screw rod circular arc is equipped between the first screw rod and the second screw rod, due to the ending of the screw thread on bolt, especially screw thread, spiral shell
The transition position and screw cross-section of head and screw rod, which accumulate changed position etc., can all occur stress concentration, and the first screw rod is justified
Arc and the second screw rod circular arc reduce the degree of stress concentration, increase mistake between hexagonal screw head, the first screw rod and the second screw rod
Cross the intensity of section；First screw rod is internally provided with first through hole and the second through-hole, and first through hole and the second through-hole make the first spiral shell
The inside of bar is hollow in part, reduces whole rigidity, energy of the bolt by shock and vibration when can be effectively absorbed, into one
Step improves the flexibility of bolt；It imports in the more convenient insertion fixation of head auxiliary bolt；Support rotation bolt screws in the second screw rod, mobile
Piece tightly blocks nut so that nut with bolt is closer is bonded, support rotation bolt screws out the second screw rod, and spring will move again
Piece resets, and moving sheet no longer tightly blocks nut, and whole reusing is good, simple in structure, and intensity is big, and anti-loosing effect is good.
The feature and advantage of the present invention will be described in detail by embodiment combination attached drawing.
【Description of the drawings】
Fig. 1 is a kind of flexible Anti-off bolt front view of petrochemical industry of the present invention；
Fig. 2 is a kind of vertical view of the hexagonal screw head of the flexible Anti-off bolt of petrochemical industry of the present invention；
Fig. 3 is a kind of front view of the second screw rod of the flexible Anti-off bolt of petrochemical industry of the present invention；
Fig. 4 is a kind of front view of the moving sheet of the flexible Anti-off bolt of petrochemical industry of the present invention；
Fig. 5 is a kind of front view of the support rotation bolt of the flexible Anti-off bolt of petrochemical industry of the present invention；
Fig. 6 is a kind of upward view of the support rotation bolt of the flexible Anti-off bolt of petrochemical industry of the present invention；
In figure：1- hexagonals screw head, 11- first through hole, the second through-holes of 12-, the first screw rods of 2-, the first screw rods of 21- circular arc, 3-
Rubber sheet gasket, the second screw rods of 4-, the second screw rods of 41- circular arc, 42- spring fixed seats, 43- springs, 44- moving sheets, 441- perforation,
442- matte portion, 45- third through-holes, 451- cylindrical portions, 452- pointed noses, 46- import head, 47- limiting slots, 5- nut shims,
6- nuts, 7- support rotations bolt, the pushing parts 71-, 72- screw-ins portion, 73- rotation bolts head, 731- pods, 732- translots, 8- fixations
Reinforce gasket with 9-.
【Specific implementation mode】
Refering to fig. 1, a kind of petrochemical industry of Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 present invention 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 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 spiral shell
First 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 equipped with second
Screw rod circular arc 41, the side of the second screw rod circular arc 41 is to central axes direction indent, the outside of the second screw rod circular arc 41
Equipped with gasket 9 is reinforced, the top of the hexagonal screw head 1 is equipped with first through hole 11 and the second through-hole 12,11 He of the first through hole
Second through-hole 12 runs through hexagonal screw head 1 and the first screw rod 2, and the radius of the first through hole 11 is more than the radius of the second through-hole 12,
Second through-hole 12 is arranged around first through hole 11, and the quantity of the second through-hole 12 is 4 to 8, is also set on second screw rod 4
There is spring fixed seat 42, spring 43, moving sheet 44, third through-hole 45, import head 46 and limiting slot 47, the spring fixed seat 42
Set on the top of the second screw rod 4, the quantity of the moving sheet 44 is 3 to 6, and the moving sheet 44 is placed in limiting slot 47, institute
The upper end for stating moving sheet 44 is equipped with perforation 441, and the separate axle center face of moving sheet 44 is matte portion 442, the length in the matte portion 442
Degree is the 2/3 to 3/4 of 4 length of the second screw rod, the top and bottom end of the spring 43 respectively with spring fixed seat 42 and perforate 441
It is connected, 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 second screw rod 4
The 2/3 to 3/4 of length, the cylindrical portion 451 are internally threaded, and cylindrical portion 451 is through importing head 46, second screw rod
4 lower end, which screws in, has nut shim 5 and nut 6, the fixation 8 to be fixed between rubber sheet gasket 3 and nut shim 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 chord 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 pod 731 and translot 732, pod 731
Cross is constituted with translot 732.
The course of work of the present invention：
Fixation 8 during the work time, is passed through the second screw rod 4 by a kind of petrochemical industry of the present invention first with flexible Anti-off bolt
With the first screw rod 2, then nut shim 5 and nut 6 be spun on the second screw rod 4, fixation 8 is fixed on 3 He of rubber sheet gasket
Between nut shim 5, among support rotation bolt 7 is screwed in third through-hole 45, with the screw-in of support rotation bolt 7, pushing part 71 is upward
Move and moving sheet 44 pushed to be moved out far from axle center along limiting slot 47, moving sheet 44 blocks nut 2 so that nut 2 with
Second screw rod, 4 even closer fitting, if screwing out support rotation bolt 7, pushing part 71 moves down, spring 43 pull moving sheet 44 along
Limiting slot 47 inwardly sets back close to axle center, and moving sheet 44 no longer blocks nut 2.The present invention is in hexagonal screw head and the first screw rod
Between be equipped with the first screw rod circular arc, between the first screw rod and the second screw rod be equipped with the second screw rod circular arc, due to the spiral shell on bolt
The ending of line, especially screw thread, the transition position of screw head and screw rod and screw cross-section are accumulated changed position etc. and can all be sent out
Raw stress concentration, and the first screw rod circular arc and the second screw rod circular arc reduce the degree of stress concentration increases hexagonal screw head, the
The intensity of changeover portion between one screw rod and the second screw rod；First screw rod is internally provided with first through hole and the second through-hole, and first is logical
Hole and the second through-hole make the inside of the first screw rod hollow in part, reduce whole rigidity, can effectively absorb bolt quilt
Energy when shock and vibration further increases the flexibility of bolt；It imports in the more convenient insertion fixation of head auxiliary bolt；Branch
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 revolves
Go out the second screw rod, spring again resets moving sheet, and moving sheet no longer tightly blocks nut, and whole reusing is good, structure letter
Single, intensity is big, and anti-loosing effect is good.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme all belong to the scope of protection of the present invention.
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 more than the radius of the second through-hole (12), second through-hole
(12) it surrounds first through hole (11) to be arranged, 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) is 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, has nut shim (5) and nut (6), the fixation (8) to be 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 the 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), which is equipped with, indulges
Slot (731) and translot (732), pod (731) and translot (732) constitute cross.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810669025.9A CN108644207A (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 |
|---|---|---|---|
| CN201810669025.9A CN108644207A (en) | 2018-06-26 | 2018-06-26 | A kind of flexible Anti-off bolt of petrochemical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108644207A true CN108644207A (en) | 2018-10-12 |
Family
ID=63753710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810669025.9A Pending CN108644207A (en) | 2018-06-26 | 2018-06-26 | A kind of flexible Anti-off bolt of petrochemical industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108644207A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541507A (en) * | 2019-08-19 | 2019-12-06 | 惠州市鸿泰建筑工程有限公司 | Glass curtain wall mounting assembly and using method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3042094A (en) * | 1959-09-30 | 1962-07-03 | Elsa I Liljeberg | Locking screw with expanding means at each end |
| CH569202A5 (en) * | 1973-12-17 | 1975-11-14 | Guggenheim Hans | Screw locking device for screw - has spreader component which expands screw and is self-locking in inserted position |
| CN2599304Y (en) * | 2003-01-24 | 2004-01-14 | 张振坤 | Anti-loosing fastening structure for expanding mouth bolt |
| CN201180722Y (en) * | 2008-03-31 | 2009-01-14 | 江都狮鹤高强度螺栓有限公司 | High-strength large hexagon head bolt for steel structure |
| CN201779120U (en) * | 2010-09-19 | 2011-03-30 | 李德炳 | Threefold stable anti-looseness expansion screw |
| CN103410835A (en) * | 2013-07-05 | 2013-11-27 | 贵州航天精工制造有限公司 | Heavy-load type self-positioning threaded connection assembly and application method thereof |
| CN205780182U (en) * | 2016-05-09 | 2016-12-07 | 台州远拓机械制造有限公司 | A kind of high life bolt |
| CN206860643U (en) * | 2017-07-03 | 2018-01-09 | 温州市三诚不锈钢标准件有限公司 | A kind of check bolt |
| CN208546409U (en) * | 2018-06-26 | 2019-02-26 | 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 CN201810669025.9A patent/CN108644207A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3042094A (en) * | 1959-09-30 | 1962-07-03 | Elsa I Liljeberg | Locking screw with expanding means at each end |
| CH569202A5 (en) * | 1973-12-17 | 1975-11-14 | Guggenheim Hans | Screw locking device for screw - has spreader component which expands screw and is self-locking in inserted position |
| CN2599304Y (en) * | 2003-01-24 | 2004-01-14 | 张振坤 | Anti-loosing fastening structure for expanding mouth bolt |
| CN201180722Y (en) * | 2008-03-31 | 2009-01-14 | 江都狮鹤高强度螺栓有限公司 | High-strength large hexagon head bolt for steel structure |
| CN201779120U (en) * | 2010-09-19 | 2011-03-30 | 李德炳 | Threefold stable anti-looseness expansion screw |
| CN103410835A (en) * | 2013-07-05 | 2013-11-27 | 贵州航天精工制造有限公司 | Heavy-load type self-positioning threaded connection assembly and application method thereof |
| CN205780182U (en) * | 2016-05-09 | 2016-12-07 | 台州远拓机械制造有限公司 | A kind of high life bolt |
| CN206860643U (en) * | 2017-07-03 | 2018-01-09 | 温州市三诚不锈钢标准件有限公司 | A kind of check bolt |
| CN208546409U (en) * | 2018-06-26 | 2019-02-26 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541507A (en) * | 2019-08-19 | 2019-12-06 | 惠州市鸿泰建筑工程有限公司 | Glass curtain wall mounting assembly and using method |
| CN110541507B (en) * | 2019-08-19 | 2020-10-16 | 惠州市鸿泰建筑工程有限公司 | Glass curtain wall mounting assembly and using method |
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