CN112178036B - Thread self-locking device - Google Patents
Thread self-locking device Download PDFInfo
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- CN112178036B CN112178036B CN202011043473.1A CN202011043473A CN112178036B CN 112178036 B CN112178036 B CN 112178036B CN 202011043473 A CN202011043473 A CN 202011043473A CN 112178036 B CN112178036 B CN 112178036B
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- self
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- locking assembly
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- 230000002265 prevention Effects 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F16B39/22—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
- F16B39/30—Locking exclusively by special shape of the screw-thread
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention belongs to the technical field of bolt looseness prevention and discloses a thread self-locking device which comprises a supporting seat, a connecting piece and a locking mechanism, wherein a self-locking inner cavity is arranged in the middle of the supporting seat, the connecting piece penetrates through the supporting seat and is connected to a workpiece, the locking mechanism comprises a self-locking assembly and an elastic piece, one end, far away from the workpiece, of the connecting piece is embedded into a self-locking assembly, one of the connection mode of the self-locking assembly and the side wall of the self-locking inner cavity and the connection mode of the connecting piece and the workpiece is an orthodontic thread, the other end of the connecting piece is an anti-orthodontic thread, one end of the elastic piece is abutted to the connecting piece, and the other end of the elastic piece is abutted to one end, close to the connecting piece, of the self-locking assembly. On one hand, the unscrewing direction of the self-locking assembly on the supporting seat is opposite to the unscrewing direction of the connecting piece on the workpiece, so that the self-locking assembly and the connecting piece form self-locking; on the other hand, the self-locking assembly can support the connecting piece to the bottom of the self-locking inner cavity through the elastic piece, so that the connecting piece is prevented from falling off due to axial impact, and the anti-loosening reliability is improved.
Description
Technical Field
The invention relates to the technical field of bolt looseness prevention, in particular to a thread self-locking device.
Background
In the process of assembling a product, the bolt connection is low in cost and convenient to disassemble, so that the bolt connection is one of common fixing modes. The bolt connection generally has no self-locking structure, so that the falling risk exists, particularly in the field of automobile parts, the bolt can vibrate along with the automobile due to frequent vibration of the automobile in the running process, even the bolt falls, further the automobile parts are driven to fall, and the great safety risk exists; the conventional bolt anti-loosening structure is generally realized by adopting a gasket or a plurality of nuts, cannot realize long-term locking, cannot give consideration to the impact in two directions of a radial direction and an axial direction, and has low reliability.
Based on the above situation, it is desired to design a thread self-locking device to solve the above problems.
Disclosure of Invention
One object of the present invention is: the utility model provides a screw thread self-lock device to solve the locking low problem of reliability of connecting piece.
In order to achieve the purpose, the invention adopts the following technical scheme:
a threaded self-locking device comprising:
the middle of the supporting seat is provided with a self-locking inner cavity;
the connecting piece penetrates through the supporting seat and is connected to a workpiece, an outer folding brim is arranged on the periphery of the connecting piece, and the outer folding brim abuts against the bottom of the self-locking inner cavity;
the locking mechanism comprises a self-locking assembly and an elastic piece, one end of the connecting piece, which is far away from the workpiece, is embedded into the self-locking assembly, the self-locking assembly is connected to the side wall of the self-locking inner cavity, one of the connection mode of the self-locking assembly and the side wall of the self-locking inner cavity and the connection mode of the connecting piece and the workpiece is an orthodontic thread, and the other is an anti-orthodontic thread; one end of the elastic piece is abutted to the connecting piece, the other end of the elastic piece is abutted to one end, close to the connecting piece, of the self-locking assembly, and the self-locking assembly can enable the outer eave to be abutted to the bottom of the self-locking inner cavity through the elastic piece.
On one hand, the unscrewing direction of the self-locking assembly on the supporting seat is opposite to the unscrewing direction of the connecting piece on the workpiece, self-locking can be formed, and the connecting piece is prevented from falling off due to radial force; on the other hand, the self-locking assembly can support the connecting piece to the bottom of the self-locking inner cavity through the elastic piece, so that the connecting piece is prevented from falling off due to axial impact, and the reliability is improved.
Optionally, a locking pad is arranged between the outer folded eaves of the connecting piece and the bottom of the self-locking inner cavity.
As a preferable scheme, the self-locking assembly comprises a rotation stopping piece and a positioning sleeve, the rotation stopping piece is connected to the side wall of the self-locking inner cavity, one end, far away from the workpiece, of the connecting piece is embedded into the positioning sleeve, and the rotation stopping piece is detachably connected with the positioning sleeve.
Preferably, one of the rotation preventing member and the positioning sleeve is provided with a toothed groove, and the other is provided with a flange, and the flange is fitted into the toothed groove.
Specifically, the flange can be separated from the tooth-shaped groove, so that self-locking of the self-locking assembly and the connecting piece can be released, and the applicability is improved.
As a preferable scheme, the locking mechanism further comprises a pressing sheet, the positioning sleeve presses against the elastic member through the pressing sheet, and one end of the positioning sleeve, which is far away from the elastic member, abuts against the rotation stopping member.
Preferably, the elastic member is sleeved on the main body of the connecting member and abuts against the outer eave.
Specifically, the eaves is rolled over outward to elastic component one end butt connecting piece, and the other end supports the position sleeve through the preforming and presses on the rotation stopping piece, stable in structure.
Preferably, the periphery of the pressing sheet is bent towards the direction close to the elastic piece and wraps the end part of the elastic piece, and the side wall of the pressing sheet abuts against the side wall of the self-locking inner cavity.
Specifically, the pressing sheet limits the moving space of the elastic piece, reduces the shaking of the elastic piece and improves the stability.
Preferably, a polygonal hole is formed in the positioning sleeve, a polygonal table is arranged at one end, away from the workpiece, of the connecting piece, the outer contour shape of the polygonal table is the same as the inner contour shape of the polygonal hole, and the polygonal table is embedded into the polygonal hole.
Optionally, the outer contour shape of the polygonal platform and the inner contour shape of the polygonal hole are set to be a quadrangle, a pentagon or a hexagon.
As a preferable scheme, a clamping groove is formed at one end, close to the opening of the self-locking inner cavity, of the rotation stopping piece.
As a preferable scheme, the rotation stopping member is provided with a middle hole, and the positioning sleeve extends out of the end face of the rotation stopping member far away from one end of the elastic member through the middle hole.
Specifically, the draw-in groove set up to extracting tool provides the point of application of force, and the position sleeve extends the part that splines the piece and provides the point of application of force for pressing the position sleeve and make it break away from the piece that splines, has reduced the dismouting degree of difficulty.
The invention has the beneficial effects that: the connecting piece penetrates through the supporting seat and is connected to a workpiece, on one hand, one end, far away from the workpiece, of the connecting piece is embedded into the self-locking assembly, the connecting piece and the self-locking assembly rotate synchronously, the self-locking assembly is connected to the side wall of the self-locking inner cavity, and the unscrewing direction of the self-locking assembly is opposite to the unscrewing direction of the connecting piece on the workpiece, so that the self-locking assembly and the connecting piece can form self-locking, and the connecting piece is prevented from falling off due to radial force; on the other hand, locking mechanical system includes the elastic component, and the auto-lock subassembly can support the connecting piece through the elastic component and press in the bottom of auto-lock inner chamber, prevents that axial impact from leading to the connecting piece to drop, has improved locking reliability.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
FIG. 1 is an exploded view of a threaded self-locking device;
FIG. 2 is a top view of the threaded self-locking device;
fig. 3 is a cross-sectional view taken at a-a shown in fig. 2.
In fig. 1 to 3:
1. a supporting seat;
2. a connecting member; 21. an outer folded brim; 22. a polygonal table;
3. a locking mechanism; 31. a self-locking assembly; 311. a rotation stopping member; 3111. a card slot; 3112. a flange; 312. a positioning sleeve; 3121. a toothed groove; 3122. a polygonal hole; 32. an elastic member; 33. and (6) tabletting.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 and 3, the present embodiment provides a thread self-locking device, which includes a supporting seat 1, a connecting member 2 and a locking mechanism 3, wherein a self-locking inner cavity is disposed in the middle of the supporting seat 1; the connecting piece 2 penetrates through the supporting seat 1 and is connected to a workpiece, an outer folded eave 21 is arranged on the periphery of the connecting piece 2, and the outer folded eave 21 is abutted to the bottom of the self-locking inner cavity; the locking mechanism 3 comprises a self-locking assembly 31 and an elastic piece 32, one end of the connecting piece 2, which is far away from the workpiece, is embedded into the self-locking assembly 31, the self-locking assembly 31 is connected to the side wall of the self-locking inner cavity, one of the connection mode of the self-locking assembly 31 and the side wall of the self-locking inner cavity and the connection mode of the connecting piece 2 and the workpiece is an orthodontic thread, and the other is an anti-orthodontic thread; one end of the elastic piece 32 is abutted to the connecting piece 2, the other end of the elastic piece is abutted to one end of the self-locking assembly 31 close to the connecting piece 2, and the self-locking assembly 31 can abut against the outer eave 21 to the bottom of the self-locking inner cavity through the elastic piece 32. The connecting piece 2 is set to be a special bolt, an orthodontic thread is arranged on a stud of the special bolt, a counter-thread is arranged on the periphery of the self-locking assembly 31, the special bolt is connected with a workpiece through the orthodontic thread, the self-locking assembly 31 is connected with the supporting seat 1 through the counter-thread, the elastic piece 32 is set to be a compression spring, and two ends of the compression spring are respectively abutted to the special bolt and the self-locking assembly 31. When the special bolt is loosened by radial impact, one end of the special bolt, which is far away from the workpiece, is embedded into the self-locking assembly 31, the special bolt and the self-locking assembly 31 rotate synchronously, and the special bolt and the self-locking assembly 31 form self locking because the loosening directions of the special bolt and the self-locking assembly 31 are opposite, the special bolt is loosened to enable the self-locking assembly 31 to be screwed, and further the self-locking assembly 31 limits the loosening of the special bolt; when the specially-made bolt is loosened by axial impact, the self-locking assembly 31 can enable the outer eave 21 of the specially-made bolt to be abutted against the bottom of the self-locking inner cavity through the compression spring, so that the influence of the axial impact on the looseness prevention performance of the specially-made bolt is counteracted, and the looseness prevention reliability of the thread self-locking device is improved.
In other embodiments, an anti-loosening pad is arranged between the outer eave 21 of the connecting member 2 and the bottom of the self-locking inner cavity, so that the friction force between the outer eave 21 and the bottom of the self-locking inner cavity can be increased, the friction force between the connecting member 2 and the supporting seat 1 is further increased, and the anti-loosening performance is further improved.
In this embodiment, the self-locking assembly 31 includes a rotation stopping member 311 and a positioning sleeve 312, the rotation stopping member 311 is connected to a sidewall of the self-locking cavity, an end of the connecting member 2 away from the workpiece is embedded in the positioning sleeve 312, and the rotation stopping member 311 is detachably connected to the positioning sleeve 312. One of the rotation stopper 311 and the positioning sleeve 312 is provided with a tooth groove 3121, and the other is provided with a flange 3112, and the flange 3112 is fitted into the tooth groove 3121. The positioning sleeve 312 is provided with a tooth-shaped groove 3121, the rotation stopping piece 311 is provided with a flange 3112, the rotation stopping piece 311 and the positioning sleeve 312 are embedded into the tooth-shaped groove 3121 through the flange 3112 to realize detachable connection, and the rotation stopping piece 311 is connected with the supporting seat 1. When the positioning sleeve 312 is pressed to separate the tooth-shaped groove 3121 of the positioning sleeve 312 from the flange 3112 of the rotation stop member 311, the self-locking relationship between the self-locking assembly 31 and the connecting member 2 can be released, and the applicability is improved.
As shown in fig. 3, the locking mechanism 3 further includes a pressing piece 33, the positioning sleeve 312 abuts against the elastic piece 32 through the pressing piece 33, and one end of the positioning sleeve 312 away from the elastic piece 32 abuts against the rotation stop piece 311. The elastic member 32 is sleeved on the main body of the connecting member 2 and abuts against the outer eave 21. The elastic part 32 is set to be a compression spring, the compression spring is sleeved on the connecting part 2, one end of the elastic part abuts against the outer eave 21 of the connecting part 2, the other end of the elastic part abuts against the pressing sheet 33, the positioning sleeve 312 abuts against the end face of the rotation stopping part 311 through the pressing sheet 33, and the structure is reliable. When the positioning sleeve 312 is pressed, the positioning sleeve 312 compresses the elastic member 32 through the pressing piece 33, and further the tooth-shaped groove 3121 is separated from the flange 3112 of the rotation stopping member 311, so that the self-locking relationship between the self-locking assembly 31 and the connecting member 2 can be released, and the operation is simple.
In this embodiment, the periphery of the pressing piece 33 is bent toward the elastic piece 32 to wrap the end of the elastic piece 32, and the side wall of the pressing piece 33 abuts against the side wall of the self-locking cavity. The pressing sheet 33 wraps the end of the compression spring, and the side wall of the pressing sheet 33 is tightly attached to the side wall of the self-locking inner cavity, so that the shaking space of the compression spring is limited, the internal impact is reduced, and the stability is improved.
As shown in fig. 1 and 2, a polygonal hole 3122 is provided on the positioning sleeve 312, a polygonal table 22 is provided at an end of the connecting piece 2 away from the workpiece, an outer contour shape of the polygonal table 22 is the same as an inner contour shape of the polygonal hole 3122, and the polygonal table 22 is fitted into the polygonal hole 3122. Be provided with hexagonal hole on the position sleeve 312, the one end that the work piece was kept away from to connecting piece 2 is provided with the hexagon platform, and the hexagon platform of connecting piece 2 inlays and adorns into the hexagonal hole of position sleeve 312, has realized the linkage of connecting piece 2 and position sleeve 312, simple structure to connecting piece 2 can slide with position sleeve 312 relatively, has reduced the interference of connecting piece 2 with auto-lock subassembly 31.
As shown in fig. 1 and 3, a slot 3111 is disposed at one end of the rotation stop member 311 near the opening of the self-locking cavity. The rotation stopping member 311 is provided with a middle hole, and the positioning sleeve 312 extends out of the end surface of the rotation stopping member 311 far away from one end of the elastic member 32 through the middle hole. When the self-locking assembly 31 is disassembled, the part of the positioning sleeve 312 higher than the rotation-stopping piece 311 can be pressed towards the direction close to the elastic piece 32 to compress the elastic piece 32 to enable the positioning sleeve 312 to be separated from the rotation-stopping piece 311, so that the self-locking of the self-locking assembly 31 and the connecting piece 2 is released; furthermore, a disassembling tool such as a wrench is used to apply force to the rotation stopping member 311 through the slot 3111 of the rotation stopping member 311 to disassemble the rotation stopping member 311, thereby reducing the difficulty of disassembly and assembly.
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (6)
1. A threaded self-locking device, comprising:
the middle of the supporting seat (1) is provided with a self-locking inner cavity;
the connecting piece (2) penetrates through the supporting seat (1) and is connected to a workpiece, an outer folded eave (21) is arranged on the periphery of the connecting piece (2), and the outer folded eave (21) abuts against the bottom of the self-locking inner cavity;
the locking mechanism (3) comprises a self-locking assembly (31) and an elastic piece (32), one end, far away from the workpiece, of the connecting piece (2) is embedded into the self-locking assembly (31), the self-locking assembly (31) is connected to the side wall of the self-locking inner cavity, one of the connection mode of the self-locking assembly (31) and the side wall of the self-locking inner cavity and the connection mode of the connecting piece (2) and the workpiece is an orthodontic thread, and the other is an anti-orthodontic thread; one end of the elastic piece (32) is abutted against the connecting piece (2), the other end of the elastic piece is abutted against one end, close to the connecting piece (2), of the self-locking assembly (31), and the self-locking assembly (31) can enable the outer eave (21) to be abutted against the bottom of the self-locking inner cavity through the elastic piece (32);
the self-locking assembly (31) comprises a rotation stopping piece (311) and a positioning sleeve (312), the rotation stopping piece (311) is connected to the side wall of the self-locking inner cavity, one end, far away from the workpiece, of the connecting piece (2) is embedded into the positioning sleeve (312), and the rotation stopping piece (311) is detachably connected with the positioning sleeve (312);
one of the rotation stopping piece (311) and the positioning sleeve (312) is provided with a tooth-shaped groove (3121), the other is provided with a flange (3112), and the flange (3112) is embedded into the tooth-shaped groove (3121);
a polygonal hole (3122) is formed in the positioning sleeve (312), a polygonal table (22) is arranged at one end, away from the workpiece, of the connecting piece (2), the outer contour shape of the polygonal table (22) is the same as the inner contour shape of the polygonal hole (3122), and the polygonal table (22) is embedded into the polygonal hole (3122).
2. The threaded self-locking device according to claim 1, characterized in that the locking mechanism (3) further comprises a pressing piece (33), the positioning sleeve (312) is pressed against the elastic piece (32) through the pressing piece (33), and one end of the positioning sleeve (312) far away from the elastic piece (32) is abutted against the rotation stop piece (311).
3. The threaded self-locking device according to claim 2, characterized in that the elastic element (32) is sleeved on the main body of the connecting element (2) and abuts against the outer eave (21).
4. The threaded self-locking device according to claim 3, characterized in that the periphery of the pressing plate (33) is bent towards the direction close to the elastic member (32) and wraps the end of the elastic member (32), and the side wall of the pressing plate (33) abuts against the side wall of the self-locking cavity.
5. The threaded self-locking device according to claim 1, wherein a locking groove (3111) is arranged at one end of the rotation stop member (311) close to the opening of the self-locking cavity.
6. The threaded self-locking device according to claim 5, characterized in that the rotation stop member (311) is provided with a central hole, and the positioning sleeve (312) extends out of the end face of the rotation stop member (311) far away from one end of the elastic member (32) through the central hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011043473.1A CN112178036B (en) | 2020-09-28 | 2020-09-28 | Thread self-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011043473.1A CN112178036B (en) | 2020-09-28 | 2020-09-28 | Thread self-locking device |
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| Publication Number | Publication Date |
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| CN112178036A CN112178036A (en) | 2021-01-05 |
| CN112178036B true CN112178036B (en) | 2022-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011043473.1A Active CN112178036B (en) | 2020-09-28 | 2020-09-28 | Thread self-locking device |
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| CN (1) | CN112178036B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113606233A (en) * | 2021-09-08 | 2021-11-05 | 宋铁军 | Bolt |
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| JPH0257710A (en) * | 1988-02-26 | 1990-02-27 | Soc Gen Tech Nouv (Sgn) | Remotely controllable device for fixing fixing screw |
| CN1304480A (en) * | 1998-04-14 | 2001-07-18 | 索斯科公司 | Captive screw |
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| CN102003451A (en) * | 2009-09-02 | 2011-04-06 | 王国仲 | Fixing device |
| CN102808552A (en) * | 2011-06-01 | 2012-12-05 | 青岛四方庞巴迪铁路运输设备有限公司 | Apron board lock of vehicle body underframe equipment cabin |
| DE202013006220U1 (en) * | 2013-07-10 | 2013-07-24 | Boehringer Ingelheim International Gmbh | Device for implementing a screw connection |
| CN105909661A (en) * | 2016-06-30 | 2016-08-31 | 青岛鸿裕吉轨道交通装备有限公司 | Thread lock for skirt board of motor train unit |
| CN106065894A (en) * | 2016-08-17 | 2016-11-02 | 玉环天润航空机械制造有限公司 | A kind of vibration proof type quick-detachable lock mechanism |
| CN110360207A (en) * | 2019-07-31 | 2019-10-22 | 嘉兴同辉汽配有限公司 | A kind of check bolt for automobile lamp |
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2020
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4534101A (en) * | 1982-01-27 | 1985-08-13 | Rexnord Inc. | Method of installing self-locking nut and bolt assembly |
| JPH0257710A (en) * | 1988-02-26 | 1990-02-27 | Soc Gen Tech Nouv (Sgn) | Remotely controllable device for fixing fixing screw |
| CN1304480A (en) * | 1998-04-14 | 2001-07-18 | 索斯科公司 | Captive screw |
| CN101725614A (en) * | 2008-10-31 | 2010-06-09 | 鸿富锦精密工业（深圳）有限公司 | Fixing assembly |
| CN102003451A (en) * | 2009-09-02 | 2011-04-06 | 王国仲 | Fixing device |
| CN102808552A (en) * | 2011-06-01 | 2012-12-05 | 青岛四方庞巴迪铁路运输设备有限公司 | Apron board lock of vehicle body underframe equipment cabin |
| DE202013006220U1 (en) * | 2013-07-10 | 2013-07-24 | Boehringer Ingelheim International Gmbh | Device for implementing a screw connection |
| CN105909661A (en) * | 2016-06-30 | 2016-08-31 | 青岛鸿裕吉轨道交通装备有限公司 | Thread lock for skirt board of motor train unit |
| CN106065894A (en) * | 2016-08-17 | 2016-11-02 | 玉环天润航空机械制造有限公司 | A kind of vibration proof type quick-detachable lock mechanism |
| CN110360207A (en) * | 2019-07-31 | 2019-10-22 | 嘉兴同辉汽配有限公司 | A kind of check bolt for automobile lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112178036A (en) | 2021-01-05 |
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