CN111853034B - Nut for wind power generation with long service life - Google Patents
Nut for wind power generation with long service life Download PDFInfo
- Publication number
- CN111853034B CN111853034B CN202010680828.1A CN202010680828A CN111853034B CN 111853034 B CN111853034 B CN 111853034B CN 202010680828 A CN202010680828 A CN 202010680828A CN 111853034 B CN111853034 B CN 111853034B
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- Prior art keywords
- hole
- nut
- nut body
- notch
- sleeve body
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- 238000010248 power generation Methods 0.000 title claims abstract description 22
- 238000003780 insertion Methods 0.000 claims abstract description 18
- 230000037431 insertion Effects 0.000 claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
- F16B39/122—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts foreseen with mating surfaces inclined, i.e. not normal, to the bolt axis
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- 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
- F16B33/00—Features common to bolt and nut
- F16B33/004—Sealing; Insulation
-
- 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
- F16B33/00—Features common to bolt and nut
- F16B33/008—Corrosion preventing means
-
- 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
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
- F16B39/126—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts causing radial forces on the bolt-shaft
Abstract
The invention discloses a nut for wind power generation with long service life, which comprises a nut body and a protective sleeve, wherein the nut body comprises a lower nut body and an upper nut body, the top surface of the lower nut body is provided with an annular notch and forms a lower annular flange, the inner wall of one side of the annular notch, which is close to a threaded hole, is an inclined plane, the thickness of the lower annular flange is gradually increased from top to bottom, the center of the bottom surface of the upper nut body is provided with a pressure hole and forms an upper annular flange, the inner wall of the pressure hole is an inclined plane, the thickness of the upper annular flange is gradually increased from bottom to top, the upper annular flange is screwed into the annular notch by downward threads and gradually presses the lower annular flange to bend and deform towards one side close to the central axis of the threaded hole, the protective sleeve comprises an upper sleeve body and a lower sleeve body which are arranged up and down, the nut body is positioned in the upper sleeve body and is provided with a plurality of insertion holes, and the upper sleeve body is provided with a plurality of insertion strips, can effectively avoid wind erosion damage, and has simple structure and good anti-loosening effect.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of nuts, in particular to the technical field of a nut for wind power generation with long service life.
[ background of the invention ]
A nut, i.e., a nut, is a component that is screwed together with a bolt or a screw to perform a fastening function, and is used in various industries such as an automobile industry, a casting industry, a ship industry, a wind power generation industry, and the like. The nut has different types, materials and standards according to different requirements of different industries. In the field of wind power generation, the volume of a nut used in the wind power generation field is often larger than that of a nut used in daily life, and the working environment is usually in a field with heavy wind and dust, so that the nut is easily subjected to wind erosion, and impurity particles are often introduced into gaps between the nut and a bolt or a workpiece. In addition, the existing nut for wind power generation also has the problems of large wind area, insecurity and easy loosening.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, provides a nut for wind power generation, which has long service life, can effectively avoid wind erosion damage, and has a simple structure and a good anti-loosening effect.
In order to achieve the above purpose, the present invention provides a nut for wind power generation, which has a long service life, and comprises a nut body and a protective sleeve, wherein the nut body comprises a lower nut body and an upper nut body, the lower nut body is a hexagon nut with a threaded hole in the center, the top surface of the lower nut body is provided with an annular notch and forms a lower annular flange, the inner wall of one side of the annular notch, which is close to the threaded hole, is an inclined surface, the thickness of the lower annular flange is gradually increased from top to bottom, the inner wall of one side of the annular notch, which is far from the threaded hole, is provided with an internal thread, the center of the bottom surface of the upper nut body is provided with a pressure hole, the upper annular flange is formed, the inner wall of the pressure hole is an inclined surface, the thickness of the upper annular flange is gradually increased from bottom to top, the outer wall of the lower annular flange is provided with an external thread, the upper annular flange is screwed into the annular notch downwards and gradually presses the lower annular flange to bend and deform towards one side close to the central axis of the threaded hole, go up the top surface central authorities of nut body and be equipped with the mouth of wearing that link up mutually with the pressure, the protective sheath includes the upper cover body and the lower cover body that set up one on top of one, the central authorities of the upper cover body and the lower cover body are equipped with through-hole and lower through-hole respectively, the nut body is located the upper cover body and just is equipped with a plurality of jack, be equipped with a plurality of cutting on the upper cover body, the free end of cutting is equipped with the plug, be equipped with a plurality of socket, a plurality of the plug of cutting passes the jack one by one and inserts and fix in the jack down.
Preferably, the jacks comprise lower jacks and upper jacks, a plurality of lower jacks are arranged on the bottom surface of the annular cut around the threaded holes, and a plurality of upper jacks corresponding to the lower jacks one to one are arranged on the upper annular flange.
Preferably, the lower insertion hole and the upper insertion hole are both oblong holes.
As preferred, the bottom surface of the upper cover body is equipped with the notch that suits with the nut body, it is located the central authorities of notch to go up the through-hole, a plurality of the cutting encircles last through-hole and sets up perpendicularly at the top of notch, the notch is stretched out to the free end of cutting, one side that the through-hole axis was kept away from to the free end of cutting is equipped with the flank of slope form and forms the plug, supreme and crescent are followed to the width of plug, the socket is including erecting blind hole and horizontal blind hole, a plurality of erect the blind hole setting at the top surface of the lower cover body and with the cutting one-to-one, the axis of horizontal blind hole is mutually perpendicular with the axis of lower through-hole, the one end of horizontal blind hole is linked together with the external world and the other end link up mutually with the bottom of erecting the blind hole.
Preferably, an annular dustproof groove is formed in the bottom surface of the upper sleeve body and located outside the notch, and an annular rubber ring is arranged in the annular dustproof groove.
Preferably, the inner diameter of the upper through hole and the inner diameter of the lower through hole are not smaller than that of the threaded hole.
The invention has the beneficial effects that: according to the invention, the upper sleeve body is provided with the plurality of the inserting strips with the plugs, and the plugs are inserted and fixed with the inserting ports of the lower sleeve body after penetrating through the nut body, so that the upper side and the lower side jointly surround the nut body and the vicinity of the joint of the nut body and the bolt, a physical isolation effect is achieved, and wind erosion damage is effectively avoided; the annular dustproof groove with the annular rubber ring is arranged on the bottom surface of the upper sleeve body, so that impurity particles are prevented from entering along the gap between the upper sleeve body and the lower sleeve body; the upper nut body with the upper annular flange is arranged, so that the lower annular flange is gradually pressed to deform in the process of screwing in the annular notch of the lower nut body, the lower nut body is enabled to bite the bolt, the structure is simple, the anti-loosening effect is good, and the normal connection of all components in a working environment with large wind power can be ensured.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is an assembly view of a long life nut for wind power generation according to the present invention;
FIG. 2 is a schematic structural view of a nut body of a nut for wind power generation according to the present invention, which has a long service life;
FIG. 3 is a top view of a lower nut body of a long-life wind power generation nut according to the present invention;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
FIG. 5 is a top view of an upper nut body of a long-life wind turbine nut according to the present invention;
FIG. 6 is a cross-sectional view taken along line D-D of FIG. 5;
FIG. 7 is a bottom view of the upper housing of the nut for wind power generation according to the present invention;
FIG. 8 is a sectional view taken along line B-B of FIG. 7;
FIG. 9 is a top view of a lower housing of a long life nut for wind power generation according to the present invention;
fig. 10 is a sectional view taken along line C-C of fig. 9.
In the figure: 1-nut body, 11-lower nut body, 111-threaded hole, 112-annular notch, 113-lower annular flange, 114-lower insertion hole, 12-upper nut body, 121-press hole, 122-upper annular flange, 123-upper insertion hole, 124-outlet, 2-upper sleeve body, 21-notch, 22-upper through hole, 23-cutting strip, 231-flank, 24-annular dust-proof groove, 25-annular rubber ring, 3-lower sleeve body, 31-lower through hole, 32-vertical blind hole and 33-horizontal blind hole.
[ detailed description ] embodiments
Referring to fig. 1 to 10, the nut for wind power generation of the present invention with a long service life includes a nut body 1 and a protective sleeve, the nut body 1 includes a lower nut body 11 and an upper nut body 12, the lower nut body 11 is a hexagon nut with a central threaded hole 111, the top surface of the lower nut body 11 is provided with an annular notch 112 and forms a lower annular flange 113, the inner wall of one side of the annular notch 112 close to the threaded hole 111 is an inclined surface and gradually increases the thickness of the lower annular flange 113 from top to bottom, the inner wall of one side of the annular notch 112 away from the threaded hole 111 is provided with an internal thread, the bottom surface of the upper nut body 12 is provided with a pressure hole 121 and forms an upper annular flange 122 at the center, the inner wall of the pressure hole 121 is an inclined surface and gradually increases the thickness of the upper annular flange 122 from bottom to top, the outer wall of the lower annular flange 122 is provided with an external thread, the upper annular flange 122 is screwed into the annular notch 112 downwards and presses the lower annular flange 113 to be close to the threaded hole 111 axis, the top surface central authorities of going up the nut body 12 are equipped with the mouth 124 of wearing that link up mutually with pressure hole 121, the protective sheath includes the last cover body 2 and the lower cover body 3 that set up one on top of one, the central authorities of the last cover body 2 and the lower cover body are equipped with through-hole 22 and lower through-hole 31 respectively, nut body 1 is located and covers the body 2 and be equipped with a plurality of jack within, be equipped with a plurality of cuttings 23 on the last cover body 2, the free end of cuttings 23 is equipped with the plug, be equipped with a plurality of socket on the lower cover body 3, a plurality of the plug of cuttings 23 passes the jack one by one and inserts and fixes in the socket.
The insertion holes comprise lower insertion holes 114 and upper insertion holes 123, a plurality of lower insertion holes 114 are arranged on the bottom surface of the annular cut 112 around the threaded hole 111, and a plurality of upper insertion holes 123 corresponding to the lower insertion holes 114 in a one-to-one mode are arranged on the upper annular flange 122.
The lower insertion hole 114 and the upper insertion hole 123 are both oblong holes.
The bottom surface of the upper cover body 2 is provided with a notch 21 adapted to the nut body 1, the upper through hole 22 is located in the center of the notch 21, a plurality of the cutting 23 surrounds the upper through hole 22 and is vertically arranged at the top of the notch 21, the free end of the cutting 23 extends out of the notch 21, one side of the free end of the cutting 23 away from the central axis of the upper through hole 22 is provided with a side wing 231 in an inclined shape and forms a plug, the width of the plug is gradually increased from the lower side, the socket comprises an upright blind hole 32 and a transverse blind hole 33, and the upright blind hole 32 is arranged on the top surface of the lower cover body 3 and corresponds to the cutting 23 one by one, the central axis of the transverse blind hole 33 is vertical to the central axis of the lower through hole 31, one end of the transverse blind hole 33 is communicated with the outside, and the other end of the transverse blind hole 32 is communicated with the bottom end of the upright blind hole 32.
An annular dust-proof groove 24 is formed in the bottom surface of the upper sleeve body 2 and located outside the notch 21, and an annular rubber ring 25 is arranged in the annular dust-proof groove 24.
The inner diameters of the upper through hole 22 and the lower through hole 31 are not smaller than the inner diameter of the threaded hole 111.
The working process of the invention is as follows:
first, the lower through hole 31 of the lower housing 3 is passed through the screw of the bolt and the bottom surface of the lower housing 3 is closely attached to the top surface of the workpiece or the pad. Next, the screw hole 111 of the lower nut body 11 is screwed into the screw of the bolt, and the bottom surface of the lower nut body 11 is brought into close contact with the top surface of the lower case body 3. The bolt is then passed through the through-hole 124 of the upper nut body 12. Then, the upper nut body 12 is rotated to screw the upper annular flange 122 into the annular cutout 112, and during the downward screwing, the lower annular flange 113 is pressed to be bent and deformed toward the side close to the center axis of the screw hole 111, thereby biting the thread of the bolt. Subsequently, the upper through hole 22 of the upper housing body 2 is passed through the screw of the bolt, so that the nut body 1 enters the notch 21 until the plug of the insert 23 of the upper housing body 2 is inserted and fixed in the socket of the lower housing body 3 after passing through the upper insertion hole 123 and the lower insertion hole 114 of the nut body 1. In the process of downward plugging of the plug, the side wing 231 firstly contracts towards the side of the body close to the inserting bar 23 along the vertical blind hole 32, and expands again to the original position after entering the transverse blind hole 33, so as to limit the upward movement of the inserting bar 23.
If the upper sleeve body 2 and the lower sleeve body 3 need to be separated, a tool with the same length as a screwdriver is used for extending inwards along the transverse blind hole 33, pressing the side wing 231 to be close to the body of the inserting bar 23, and then pulling the upper sleeve body 2 upwards.
According to the invention, the upper sleeve body is provided with the plurality of the inserting strips with the plugs, and the plugs are inserted and fixed with the inserting ports of the lower sleeve body after penetrating through the nut body, so that the upper side and the lower side jointly surround the nut body and the vicinity of the joint of the nut body and the bolt, a physical isolation effect is achieved, and wind erosion damage is effectively avoided; the annular dustproof groove with the annular rubber ring is arranged on the bottom surface of the upper sleeve body, so that impurity particles are prevented from entering along the gap between the upper sleeve body and the lower sleeve body; the upper nut body with the upper annular flange is arranged, so that the lower annular flange is gradually pressed to deform in the process of screwing in the annular notch of the lower nut body, the lower nut body is enabled to bite the bolt, the structure is simple, the anti-loosening effect is good, and the normal connection of all components in a working environment with large wind power can be ensured.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a long service life's nut for wind power generation which characterized in that: the nut comprises a nut body (1) and a protective sleeve, wherein the nut body (1) comprises a lower nut body (11) and an upper nut body (12), the lower nut body (11) is a hexagon nut with a threaded hole (111) at the center, a ring-shaped notch (112) is formed in the top surface of the lower nut body (11) and forms a lower ring-shaped flange (113), the inner wall of one side, close to the threaded hole (111), of the ring-shaped notch (112) is an inclined plane, the thickness of the lower ring-shaped flange (113) is gradually increased from top to bottom, an internal thread is formed in the inner wall of one side, far away from the threaded hole (111), of the ring-shaped notch (112), a pressure hole (121) is formed in the center of the bottom surface of the upper nut body (12) and forms an upper ring-shaped flange (122), the inner wall of the pressure hole (121) is an inclined plane, the thickness of the upper ring-shaped flange (122) is gradually increased from bottom to top, and an external thread is formed on the outer wall of the lower ring-shaped flange (122), the upper annular flange (122) is screwed downwards into the annular notch (112) and gradually presses the lower annular flange (113) to bend and deform towards one side close to the central axis of the threaded hole (111), the center of the top surface of the upper nut body (12) is provided with a through hole (124) communicated with the pressure hole (121), the protective sleeve comprises an upper sleeve body (2) and a lower sleeve body (3) which are arranged up and down, the centers of the upper sleeve body (2) and the lower sleeve body are respectively provided with an upper through hole (22) and a lower through hole (31), the nut body (1) is positioned in the upper sleeve body (2) and is provided with a plurality of jacks, a plurality of cutting slips (23) are arranged on the upper sleeve body (2), the free ends of the cutting slips (23) are provided with plugs, the lower sleeve body (3) is provided with a plurality of jacks, and the plugs of the plurality of inserting strips (23) penetrate through the jacks one by one and are inserted and fixed in the jacks.
2. A nut for wind power generation having a long service life as claimed in claim 1, wherein: the jack includes lower jack (114) and last jack (123), it is equipped with a plurality of lower jack (114) to encircle screw hole (111) on the bottom surface of ring incision (112), be equipped with a plurality of and last jack (123) of lower jack (114) one-to-one on going up annular flange (122).
3. A nut for wind power generation having a long service life as claimed in claim 2, wherein: the lower insertion hole (114) and the upper insertion hole (123) are both oblong holes.
4. A nut for wind power generation having a long service life as claimed in claim 1, wherein: the bottom surface of the upper sleeve body (2) is provided with a notch (21) which is matched with the nut body (1), the upper through hole (22) is positioned in the center of the notch (21), a plurality of the cutting slips (23) surround the upper through hole (22) and are vertically arranged at the top of the notch (21), the free end of the inserting strip (23) extends out of the notch (21), one side of the free end of the inserting strip (23) far away from the central axis of the upper through hole (22) is provided with an inclined lateral wing (231) and forms a plug, the width of the plug is gradually increased from bottom to top, the socket comprises vertical blind holes (32) and transverse blind holes (33), a plurality of the vertical blind holes (32) are arranged on the top surface of the lower sleeve body (3) and correspond to the inserting strips (23) one by one, the central axis of the transverse blind hole (33) is vertical to the central axis of the lower through hole (31), one end of the transverse blind hole (33) is communicated with the outside, and the other end of the transverse blind hole is communicated with the bottom end of the vertical blind hole (32).
5. The nut for wind power generation having a long service life according to claim 4, wherein: an annular dustproof groove (24) is formed in the bottom surface of the upper sleeve body (2) and located outside the notch (21), and an annular rubber ring (25) is arranged in the annular dustproof groove (24).
6. A nut for wind power generation having a long service life as claimed in claim 1, wherein: the inner diameters of the upper through hole (22) and the lower through hole (31) are not smaller than the inner diameter of the threaded hole (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010680828.1A CN111853034B (en) | 2020-07-15 | 2020-07-15 | Nut for wind power generation with long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010680828.1A CN111853034B (en) | 2020-07-15 | 2020-07-15 | Nut for wind power generation with long service life |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111853034A CN111853034A (en) | 2020-10-30 |
| CN111853034B true CN111853034B (en) | 2021-10-08 |
Family
ID=72983586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010680828.1A Active CN111853034B (en) | 2020-07-15 | 2020-07-15 | Nut for wind power generation with long service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111853034B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2314140Y (en) * | 1997-12-24 | 1999-04-14 | 黄新财 | Twin-nut locking structure |
| DE102008004907A1 (en) * | 2008-01-15 | 2009-07-16 | Wolfgang Begon | Conical sealing sleeve i.e. sealing element, for cylindrical or conical thread to seal threaded-connection, is made of extruded, pure PTFE |
| WO2016137000A1 (en) * | 2015-02-25 | 2016-09-01 | 良三 太田 | Structure for locking nut tightened on bolt |
| CN109826861A (en) * | 2019-03-25 | 2019-05-31 | 韦志锋 | A kind of check bolt group and its operating method |
| CN110067803A (en) * | 2019-05-13 | 2019-07-30 | 佛山市万特电机有限公司 | Thread connection component and its screwed retaining ring |
| CN209324850U (en) * | 2018-12-07 | 2019-08-30 | 浙江盛世瑞金紧固件有限公司 | A kind of bolt with anti-loose anti-theft function |
| CN209654404U (en) * | 2019-03-04 | 2019-11-19 | 中冶京诚工程技术有限公司 | A kind of stop nut structure |
| CN210290446U (en) * | 2019-08-11 | 2020-04-10 | 卢国先 | Combined novel anti-loosening nut |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7571936B2 (en) * | 2003-07-17 | 2009-08-11 | Harald Schneider | Screw connection element and protective sleeve therefor |
-
2020
- 2020-07-15 CN CN202010680828.1A patent/CN111853034B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2314140Y (en) * | 1997-12-24 | 1999-04-14 | 黄新财 | Twin-nut locking structure |
| DE102008004907A1 (en) * | 2008-01-15 | 2009-07-16 | Wolfgang Begon | Conical sealing sleeve i.e. sealing element, for cylindrical or conical thread to seal threaded-connection, is made of extruded, pure PTFE |
| WO2016137000A1 (en) * | 2015-02-25 | 2016-09-01 | 良三 太田 | Structure for locking nut tightened on bolt |
| CN209324850U (en) * | 2018-12-07 | 2019-08-30 | 浙江盛世瑞金紧固件有限公司 | A kind of bolt with anti-loose anti-theft function |
| CN209654404U (en) * | 2019-03-04 | 2019-11-19 | 中冶京诚工程技术有限公司 | A kind of stop nut structure |
| CN109826861A (en) * | 2019-03-25 | 2019-05-31 | 韦志锋 | A kind of check bolt group and its operating method |
| CN110067803A (en) * | 2019-05-13 | 2019-07-30 | 佛山市万特电机有限公司 | Thread connection component and its screwed retaining ring |
| CN210290446U (en) * | 2019-08-11 | 2020-04-10 | 卢国先 | Combined novel anti-loosening nut |
Non-Patent Citations (1)
| Title |
|---|
| 螺栓防松方法在风电领域中的应用;周震;《科技传播》;20110916;第132-133页 * |
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| Publication number | Publication date |
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| CN111853034A (en) | 2020-10-30 |
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