CN114962420A - Integrated nut retaining mechanism and retaining method thereof - Google Patents
Integrated nut retaining mechanism and retaining method thereof Download PDFInfo
- Publication number
- CN114962420A CN114962420A CN202210719820.0A CN202210719820A CN114962420A CN 114962420 A CN114962420 A CN 114962420A CN 202210719820 A CN202210719820 A CN 202210719820A CN 114962420 A CN114962420 A CN 114962420A
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- Prior art keywords
- nut
- shell
- bearing seat
- retaining mechanism
- notch
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- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 17
- 230000001154 acute effect Effects 0.000 claims description 9
- 230000010354 integration Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000001125 extrusion Methods 0.000 abstract description 4
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 241000561734 Celosia cristata Species 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
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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
- 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
- F16B39/26—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 with spring washers fastened to the nut or bolt-head
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses an integrated nut retaining mechanism and a retaining method thereof, wherein the integrated nut retaining mechanism comprises a shell with a thread on the surface, a nut arranged on the shell and a dismounting assembly used for mounting or dismounting the nut, wherein the side of the nut, which is close to the shell, is provided with a retaining mechanism for locking the nut on the shell; one side of the shell is sequentially inserted with an elastic pad, an installation panel and a nut, and the other side of the shell is connected with a handle part; the stopping effect is more excellent, and the stopping barb is the rigid structure, and is big along with locking force, and stopping force is also big more, and repetitive service life is longer can reach stopping effect more than 500 by traditional single stopping, and the bullet pad can take place partial plastic deformation along with after the extrusion atress, and the more plastic deformation volume of use number is big more, and until there is not elasticity completely, the life extension, the use field man-machine environment is better, can not appear stopping part neglected loading phenomenon.
Description
Technical Field
The invention belongs to the technical field of nuts, and particularly relates to an integrated nut retaining mechanism and a retaining method thereof.
Background
A nut is one of the fasteners commonly used in the mechanical field, and is usually used in conjunction with a bolt or a screw for fastening two parts with a through hole.
The part of present traditional nut stopping mechanism: the shell, the mounting panel, the internal tooth washer and the nut are tightly locked and then extruded on the internal tooth washer to press the mounting panel; the internal tooth washer receives the positive pressure of nut, utilizes oblique internal tooth loosen the opposite elasticity of direction of rotation with the nut and realize the nut stopping, however, internal tooth washer and nut are two parts, and the easy neglected loading of operation process, and the internal tooth washer is many slice inclination thin slices, can produce plastic deformation after long-time extrusion, and elasticity is lost efficacy.
Disclosure of Invention
The invention aims to provide an integrated nut retaining mechanism and a retaining method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an integrated nut retaining mechanism comprises a shell with a thread on the surface, a nut arranged on the shell and a dismounting assembly used for mounting or dismounting the nut, wherein the retaining mechanism used for locking the nut on the shell is arranged on one side of the nut close to the shell;
one side of the shell is sequentially inserted with an elastic pad, an installation panel and a nut, and the other side of the shell is connected with a handle part;
the retaining mechanism comprises a notch which is arranged on one side of the nut close to the shell, is in a sawtooth shape, is cut in anticlockwise and is connected with the nut in a clockwise opposite direction;
wherein, along with the nut atress meshing back cockscomb structure notch is followed the angle and is slided in, works as when the nut has not hard up atress and trend, the barb end embedding of notch, card go into the installation panel, realize the stopping.
Preferably, the dismouting subassembly is including being used for casing male adapter sleeve, the adapter sleeve is the cylinder, winds adapter sleeve outside a week is provided with a plurality of hammering handles in proper order equidistance, it is right that the hammering handle is used for hammering the adapter sleeve the nut is dismantled.
Preferably, the connecting sleeve is provided with an upper bearing seat and a lower bearing seat which are symmetrical, the inner diameters of the upper bearing seat and the lower bearing seat are equal to the outer diameter of the connecting sleeve, and the upper bearing seat is connected with the lower bearing seat through a bolt.
Preferably, the connecting sleeve is evenly distributed with clamping teeth on the outer side of one end, far away from the hammering handle, of the connecting sleeve, and the clamping teeth are used for fixing the nut to be detached.
Preferably, the lower surface of the connecting sleeve is provided with a supporting seat, the dismounting assembly further comprises a lifting assembly for changing the height of the connecting sleeve, and the lifting assembly comprises a lifting plate arranged at the bottom of the supporting seat.
Preferably, wind the lifter plate is two, and two the lifter plate outside all is provided with the fixed plate, the bar hole has been seted up in the fixed plate outside, and the fixed plate lower surface is provided with the base.
Preferably, the notch inclination angle is less than an acute angle of 35 degrees.
Preferably, the direction of embedding the barbed end of the notch is opposite to the screwing direction of the nut.
A using method of an integrated nut retaining mechanism comprises the following steps,
step A, firstly, the handle part is held to enable one side of the shell to be sequentially inserted with the elastic pad, the mounting panel and the nut and extend into the connecting sleeve, so that the elastic pad is clamped between the mounting panel and the handle part, and the notch is enabled to be abutted against the mounting panel;
step B, then placing the connecting sleeve on a lower bearing seat, installing an upper bearing seat on the lower bearing seat through a bolt, adjusting the height of the lifting plate between the two fixing plates, adjusting the height of the supporting seat to enable the axis of the connecting sleeve to be consistent with the axis of the nut, externally connecting the bolt to fix the lifting plate, aligning the latch to the outer side of the shell and abutting against the latch, hammering the hammering handle by using an installation hammer to enable the lower bearing seat and the upper bearing seat to rotate, and driving the nut to rotate;
step C, after the nut rotates, the serrated notch slides in along an acute angle after the nut is stressed and meshed, and when the nut has loose stress and trend, the barbed end of the serrated slope can be embedded and clamped into the mounting panel;
and D, when the nut needs to be detached, reversely hammering the hammering handle to enable the lower bearing seat and the upper bearing seat to rotate reversely, driving the nut to rotate reversely, enabling the serrated notch to slide out along an acute angle, separating the nut from the mounting panel, and finally pulling out the shell to finish the detachment of the nut.
The invention has the technical effects and advantages that: according to the integrated nut retaining mechanism and the retaining method thereof, the retaining effect is better, the retaining barb is of a rigid structure, the retaining force is larger along with the larger locking force, the repeated service life is longer, the retaining effect can be more than 500 times by the traditional single retaining, the elastic pad can be partially plastically deformed along with the extrusion stress, the plastic deformation is larger along with the increase of the use times until no elasticity exists, the service life is prolonged, the man-machine environment of the use site is better, and the phenomenon of neglected loading of retaining parts can not occur.
Drawings
FIG. 1 is a schematic view of a first overall perspective structure of the present invention;
FIG. 2 is a schematic view of a second overall perspective structure of the present invention;
FIG. 3 is a schematic structural diagram of the retaining mechanism of the present invention;
FIG. 4 is a cross-sectional view of the backstop mechanism of the present invention;
FIG. 5 is a schematic view of the assembly/disassembly assembly of the present invention;
fig. 6 is a schematic structural diagram of the lifting assembly of the present invention.
In the figure: 1. a housing; 2. installing a panel; 3. a nut; 4. disassembling and assembling the components; 401. hammering the handle; 402. connecting sleeves; 403. a lower bearing seat; 404. an upper bearing seat; 405. clamping teeth; 5. a spring pad; 6. a handle portion; 7. a supporting seat; 8. a lifting assembly; 801. a base; 802. a fixing plate; 803. a strip-shaped hole; 804. a lifting plate; 9. a backstop mechanism; 901. a notch.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In order to facilitate the retaining effect of the nut 3, referring to fig. 1, 2, 3, 4 and 5, the anti-back device includes a housing 1 with a thread on the surface, a nut 3 mounted on the housing 1, and a dismounting assembly 4 for mounting or dismounting the nut 3, wherein the nut 3 is mounted or dismounted on the housing 1 through the dismounting assembly, thereby improving the convenience. One side of the nut 3, which is close to the shell 1, is provided with a retaining mechanism 9 for locking the nut 3 on the shell 1, and the retaining force of the nut 3 is improved through the retaining mechanism 9. 1 one side of casing is pegged graft in proper order and is had bullet pad 5, installation panel 2 and nut 3, and 1 opposite side of casing is connected with handle portion 6, through hold between the fingers handle portion 6 with 1 grafting bullet pad 5 of casing after and be connected with installation panel 2, will play pad 5 to be fixed in between installation panel 2 and the handle portion 6, the long stopping effect more than 500 times that can be reached by traditional single stopping of used life repeatedly, bullet pad 5 can be along with extrusion atress after take place partial plastic deformation. The retaining mechanism 9 comprises a notch 901 formed in one side, close to the shell 1, of the nut 3, wherein the notch 901 is a sawtooth slope and is cut into the outer side of the mounting panel 2 anticlockwise and connected with the nut 3 in the clockwise direction and the opposite direction; wherein, along with serration notch 901 takes advantage of the situation and slides in along the angle behind the nut 3 atress meshing, notch 901 inclination is less than 35 degrees acute angles, the barb end embedding direction of notch 901 with nut 3 screws the direction reciprocal, and the stopping effect is more excellent, and the stopping barb is rigid structure, and is big along with the locking force, and the stopping power is also big, works as when nut 3 has not hard up atress and trend, the barb end embedding of notch 901, card go into installation panel 2, realize the stopping, play the effect of stopping.
For the convenience of adjusting the use height of whole device, refer to fig. 5 and fig. 6 and show, dismouting subassembly 4 is including being used for 1 male adapter sleeve 402 of casing, adapter sleeve 402 is the cylinder, winds adapter sleeve 402 outside a week has set up a plurality of hammering handles 401 in proper order equidistance, it is right that hammering handle 401 is used for hammering adapter sleeve 402 nut 3 is dismantled, and hammering handle 401 is the cylinder type, and hammering handle 401 outside is equipped with the friction cover, and the friction cover adopts the rubber preparation, and the surface is equipped with anti-skidding arch, and the friction cover both can alleviate the counter force to the hand when hammering, alleviates the hand discomfort, can increase the frictional force when hammering again, plays anti-skidding effect. The connecting sleeve 402 is provided with an upper bearing seat 404 and a lower bearing seat 403 which are symmetrical, the inner diameters of the upper bearing seat 404 and the lower bearing seat 403 are equal to the outer diameter of the connecting sleeve 402, the upper bearing seat 404 is connected with the lower bearing seat 403 through a bolt, and the connecting sleeve 402 can be driven to rotate under the matching of the upper bearing seat 404 and the lower bearing seat 403, so that the nut 3 can be conveniently detached and installed. The connecting sleeve 402 is far away from hammering handle 401 one end outside circumference equipartition and is equipped with latch 405, latch 405 is used for fixed nut 3 of waiting to dismantle, and latch 405 cooperatees with 3 surperficial flutings of nut, and latch 405 is the cuboid. The lower surface of the connecting sleeve 402 is provided with a supporting seat 7, the dismounting assembly 4 further comprises a lifting assembly 8 for changing the height of the connecting sleeve 402, the lifting assembly 8 comprises a lifting plate 804 arranged at the bottom of the supporting seat 7, the lifting plate 804 is two, a fixing plate 802 is arranged on the outer side of the lifting plate 804, a strip-shaped hole 803 is formed in the outer side of the fixing plate 802, a base 801 is arranged on the lower surface of the fixing plate 802, the height of the lifting plate 804 between the two fixing plates 802 is increased through pulling, so that the height of the connecting sleeve 402 is changed, the connecting sleeve can be adjusted according to actual needs, and then an external bolt is inserted into the strip-shaped hole 803 to fix the lifting plate 804.
The use method of the integrated nut 3 retaining mechanism 9 comprises the following steps,
step A, firstly, a handle part 6 is held, one side of a shell 1 is sequentially inserted with an elastic pad 5, an installation panel 2 and a nut 3 and extends into a connecting sleeve 402, so that the elastic pad 5 is clamped between the installation panel 2 and the handle part 6, and a notch 901 is abutted to the installation panel 2;
step B, then placing the connecting sleeve 402 on a lower bearing seat 403, installing an upper bearing seat 404 on the lower bearing seat 403 through a bolt, adjusting the height of the lifting plate 804 between the two fixing plates 802, adjusting the height of the supporting seat 7 to enable the axis of the connecting sleeve 402 to be consistent with the axis of the nut 3, externally connecting the bolt to fix the lifting plate 804, aligning the latch 405 to the outer side of the shell 1 and abutting against the outer side of the shell, hammering the hammering handle 401 by using an installation hammer to enable the lower bearing seat 403 and the upper bearing seat 404 to rotate and drive the nut 3 to rotate;
step C, after the nut 3 rotates, the serrated notch 901 slides in along an acute angle after being engaged by stress, and when the nut 3 has loose stress and trend, the barbed end of the serrated slope can be embedded and clamped into the mounting panel 2;
and D, when the nut needs to be detached, reversely hammering the hammering handle 401 to enable the lower bearing seat 403 and the upper bearing seat 404 to rotate reversely, driving the nut 3 to rotate reversely, enabling the serrated notch 901 to slide out along an acute angle, separating the nut 3 from the mounting panel 2, and finally pulling out the shell 1 to finish the detachment of the nut 3.
The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a nut stopping mechanism of integration which characterized in that: the anti-loosening mechanism comprises a shell (1) with threads on the surface, a nut (3) installed on the shell (1) and a dismounting assembly (4) used for installing or dismounting the nut (3), wherein a backstop mechanism (9) used for locking the nut (3) on the shell (1) is arranged on one side, close to the shell (1), of the nut (3);
an elastic pad (5), an installation panel (2) and a nut (3) are sequentially inserted into one side of the shell (1), and a handle part (6) is connected to the other side of the shell (1);
the retaining mechanism (9) comprises a notch (901) formed in one side, close to the shell (1), of the nut (3), wherein the notch (901) is in a sawtooth shape, is cut in anticlockwise and is connected with the nut (3) in a clockwise opposite direction;
the nut (3) is stressed and meshed, then the sawtooth-shaped notch (901) slides in along an angle, when the nut (3) is stressed and tends to be loose, the barb end of the notch (901) is embedded and clamped into the mounting panel (2), and stopping is achieved.
2. The integrated nut retaining mechanism of claim 1, wherein: dismouting subassembly (4) are including being used for casing (1) male adapter sleeve (402), adapter sleeve (402) are the cylinder, wind adapter sleeve (402) outside a week is provided with a plurality of hammering handles (401) in proper order equidistance, hammering handle (401) are used for hammering adapter sleeve (402) right nut (3) are dismantled.
3. The integrated nut retaining mechanism of claim 2, wherein: the connecting sleeve (402) is provided with an upper bearing seat (404) and a lower bearing seat (403) which are symmetrical, the inner diameters of the upper bearing seat (404) and the lower bearing seat (403) are equal to the outer diameter of the connecting sleeve (402), and the upper bearing seat (404) is connected with the lower bearing seat (403) through bolts.
4. An integrated nut retaining mechanism as claimed in claim 3, wherein: clamping teeth (405) are evenly distributed on the outer circumference of one end, far away from the hammering handle (401), of the connecting sleeve (402), and the clamping teeth (405) are used for fixing a nut (3) to be detached.
5. The integrated nut retaining mechanism of claim 4, wherein: the lower surface of the connecting sleeve (402) is provided with a supporting seat (7), the dismounting assembly (4) further comprises a lifting assembly (8) used for changing the height of the connecting sleeve (402), and the lifting assembly (8) comprises a lifting plate (804) installed at the bottom of the supporting seat (7).
6. The integrated nut retaining mechanism of claim 5, wherein: the winding lifting plate (804) is two, the outer sides of the lifting plate (804) are provided with fixing plates (802), strip-shaped holes (803) are formed in the outer sides of the fixing plates (802), and a base (801) is arranged on the lower surface of the fixing plates (802).
7. The integrated nut retaining mechanism of claim 1, wherein: the notch (901) is inclined at an angle less than an acute angle of 35 degrees.
8. The integrated nut retaining mechanism of claim 1, wherein: the embedding direction of the barb end of the notch (901) is opposite to the screwing direction of the nut (3).
9. The use method of the integrated nut retaining mechanism based on any one of claims 1 to 9 is characterized in that: comprises the following steps of (a) carrying out,
the method comprises the following steps that (A) firstly, a handle part (6) is held to enable one side of a shell (1) to be sequentially inserted with an elastic pad (5), an installation panel (2) and a nut (3) and extend into a connecting sleeve (402), so that the elastic pad (5) is clamped between the installation panel (2) and the handle part (6), and a notch (901) is abutted to the installation panel (2);
step (B), then, a connecting sleeve (402) is placed on a lower bearing seat (403), an upper bearing seat (404) is installed on the lower bearing seat (403) through bolts, the height of a lifting plate (804) between two fixing plates (802) is adjusted, the height of a supporting seat (7) is adjusted to enable the axis of the connecting sleeve (402) to be consistent with the axis of a nut (3), the lifting plate (804) is fixed through an external bolt, a latch (405) is aligned to the outer side of a shell (1) and is abutted against the outer side of the shell, a hammering handle (401) is hammered through an installation hammer, the lower bearing seat (403) and the upper bearing seat (404) are enabled to rotate, and the nut (3) is driven to rotate;
step (C), after the nut (3) rotates, the serrated notch (901) slides in along an acute angle after being engaged by stress, and when the nut (3) has loose stress and trend, the barb end of the serrated slope can be embedded and clamped into the mounting panel (2);
and (D) when the nut needs to be detached, reversely hammering the hammering handle (401) to enable the lower bearing seat (403) and the upper bearing seat (404) to reversely rotate to drive the nut (3) to reversely rotate, enabling the serrated notch (901) to slide out along an acute angle, separating the nut (3) from the mounting panel (2), and finally pulling out the shell (1) to finish the detachment of the nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210719820.0A CN114962420A (en) | 2022-06-23 | 2022-06-23 | Integrated nut retaining mechanism and retaining method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210719820.0A CN114962420A (en) | 2022-06-23 | 2022-06-23 | Integrated nut retaining mechanism and retaining method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114962420A true CN114962420A (en) | 2022-08-30 |
Family
ID=82971607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210719820.0A Pending CN114962420A (en) | 2022-06-23 | 2022-06-23 | Integrated nut retaining mechanism and retaining method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114962420A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003120643A (en) * | 2001-10-12 | 2003-04-23 | Tsunehiro Yoshida | Bolt-nut having looseness preventive mechanism |
| CN201973060U (en) * | 2011-01-28 | 2011-09-14 | 宁波腾玲工贸有限公司 | Check nut |
| CN204099384U (en) * | 2014-08-27 | 2015-01-14 | 刘兴丹 | Mechanical type self-locking screw |
| KR101535989B1 (en) * | 2015-05-20 | 2015-07-10 | 이상철 | Washer to prevent screw or nut loosening |
| CN207044102U (en) * | 2017-07-13 | 2018-02-27 | 鞍钢股份有限公司 | Retaining slotted round nut attaching/detaching apparatus |
| CN207777388U (en) * | 2017-12-08 | 2018-08-28 | 区家悦 | A kind of self-locking nut and bolt assembly |
| CN211693157U (en) * | 2019-10-21 | 2020-10-16 | 平湖市盛泰五金制品有限公司 | Easily-installed hexagonal flange face locknut |
| CN112268055A (en) * | 2020-11-11 | 2021-01-26 | 徐勤 | Anti-loosening fastening nut gasket assembly |
| CN214533945U (en) * | 2021-03-19 | 2021-10-29 | 梁雪峰 | Screw rod structure of mining machinery |
-
2022
- 2022-06-23 CN CN202210719820.0A patent/CN114962420A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003120643A (en) * | 2001-10-12 | 2003-04-23 | Tsunehiro Yoshida | Bolt-nut having looseness preventive mechanism |
| CN201973060U (en) * | 2011-01-28 | 2011-09-14 | 宁波腾玲工贸有限公司 | Check nut |
| CN204099384U (en) * | 2014-08-27 | 2015-01-14 | 刘兴丹 | Mechanical type self-locking screw |
| KR101535989B1 (en) * | 2015-05-20 | 2015-07-10 | 이상철 | Washer to prevent screw or nut loosening |
| CN207044102U (en) * | 2017-07-13 | 2018-02-27 | 鞍钢股份有限公司 | Retaining slotted round nut attaching/detaching apparatus |
| CN207777388U (en) * | 2017-12-08 | 2018-08-28 | 区家悦 | A kind of self-locking nut and bolt assembly |
| CN211693157U (en) * | 2019-10-21 | 2020-10-16 | 平湖市盛泰五金制品有限公司 | Easily-installed hexagonal flange face locknut |
| CN112268055A (en) * | 2020-11-11 | 2021-01-26 | 徐勤 | Anti-loosening fastening nut gasket assembly |
| CN214533945U (en) * | 2021-03-19 | 2021-10-29 | 梁雪峰 | Screw rod structure of mining machinery |
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