CN110924239B - Non-loose railway track gauge pull rod - Google Patents
Non-loose railway track gauge pull rod Download PDFInfo
- Publication number
- CN110924239B CN110924239B CN201811085634.6A CN201811085634A CN110924239B CN 110924239 B CN110924239 B CN 110924239B CN 201811085634 A CN201811085634 A CN 201811085634A CN 110924239 B CN110924239 B CN 110924239B
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- Prior art keywords
- locking plate
- loosening
- hexagonal
- hexagonal sleeve
- tongue
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B5/00—Rails; Guard rails; Distance-keeping means for them
- E01B5/16—Distance keepers
Abstract
The track gauge pull rod has outer rail clamp with 1-12 anti-loosening holes in the outer elevation, one locking plate outside the outer rail clamp, and 1-12 anti-loosening blocks in the contact surface between the locking plate and the outer rail clamp. After the outer main nut is installed, the small tongue-shaped locking plate on the anti-loosening locking plate is bent by 90 degrees towards the main nut, so that the small tongue-shaped locking plate is wrapped on six planes of the outer angle of the outer main nut, and then a hexagonal sleeve is installed outside the hexagonal cylinder surrounded by the six small tongue-shaped locking plates. The outer rail clamp, the outer hexagon main nut and the hexagonal sleeve are connected into a whole through the anti-loosening locking piece, so that the outer hexagon main nut cannot be loosened any more. The invention relates to a non-loose track gauge tie rod, which is a new structural screw anti-loose technology, and after installation and use, under normal conditions, an outer main nut can not be loosened by itself any more.
Description
Technical Field
The invention relates to a railway gauge pull rod, in particular to a non-loose railway gauge pull rod, namely a novel railway gauge pull rod which can prevent outer main nuts at two ends of the gauge pull rod from automatically loosening under the long-term vibration working condition under the strong transverse pressure of a wheel pair on a steel rail during the running of a train.
Technical Field
The rail gauge tie rod is an important connecting piece between two steel rails on a railway, and when a train runs on the steel rails, wheels of the train can generate strong transverse pressure on the steel rails to outwards press the two steel rails, so that the gauge between the two steel rails is outwards expanded. The expansion of the gauge exceeds the standard gauge by 5 mm, which brings great hidden trouble to the running safety of the train. In order to maintain the gauge stability between two rails, gauge ties have been invented. The gauge pull rod can connect the two steel rails together, and the gauge between the two steel rails is kept stable as much as possible. Two ends of the gauge pull rod are provided with two sets of rail clamps of the steel rails, and the two steel rails are clamped from the rail bottom in the transverse direction. And then the two steel rails are pulled together by the transverse tension of the pull rod body, so that the steel rails cannot expand transversely and move outwards. The gauge pull rod supports the outer rail clamp by means of a fastening nut outside the outer rail clamp to resist the transverse pressure of the steel rail. The wheels not only generate strong transverse pressure to the steel rail, but also generate great vibration during the running of the train. The strong pressure and vibration can be transmitted to the outer nuts of the track gauge pull rod, and the outer nuts at the two ends of the track gauge pull rod inevitably loosen automatically after a long time. Finally, the steel rail is expanded and moved outwards in the transverse direction, if the track gauge expansion and outward movement exceeds the standard track gauge by 5 mm, serious driving safety accidents can be caused, if the track gauge expansion and outward movement exceeds the standard track gauge, the steel rail is derailed if the track gauge expansion and outward movement exceeds the standard track gauge, and even if the train overturns if the track gauge expansion and outward movement exceeds the standard track gauge. In order to ensure the safety of railway operation, patrolling workers need to patrol whether nuts at the outer ends of the gauge pull rods are loosened every day, so that a large amount of labor cost is consumed, and the patrolling workers are painstakingly and painstakingly troubled to check whether the railways are windy and rainy. Therefore, the invention of a non-loose track gauge tie rod is an important requirement in the railway industry.
Disclosure of Invention
The invention aims to provide a non-loose railway track gauge pull rod, namely the railway track gauge pull rod which can prevent outer main nuts at two ends of the track gauge pull rod from self-loosening under the working conditions of strong pressure and vibration. The reliability of the gauge pull rod is greatly improved, the transverse stability of the two steel rails can be guaranteed, and better safety guarantee is provided for train operation. The frequency of inspection of patrolling the road can be reduced, the manpower is saved, and the working efficiency is improved.
The invention relates to a non-loose track gauge pull rod of a railway, which comprises a rod body, but not limited to, common track gauge pull rods, insulating track gauge pull rods, curve track gauge pull rods and track gauge pull rods with special specifications used near turnouts, wherein the common track gauge pull rods, the insulating track gauge pull rods, the curve track gauge pull rods and the special track gauge pull rods are of various specifications. The basic specification, size and quality requirements of the gauge tie rod are strictly in accordance with national standards, international standards and railway industry standards.
The invention is a new innovation on the basis of the original railway gauge pull rod. On the outer facade of the outer rail clamp at the two ends of the pull rod, 1-12 anti-loosening holes are uniformly arranged at the proper position of a circle of the periphery of the pull rod hole, a locking plate is arranged on the pull rod outside the outer rail clamp, 1-12 anti-loosening clamps are arranged on the plane where the locking plate is contacted with the outer rail clamp, the anti-loosening clamps on the locking plate and the anti-loosening holes on the outer rail clamp are in one-to-one correspondence, and when the locking plate is installed, the locking clamps are all embedded into the anti-loosening holes. And a flat washer and a spring washer are arranged outside the anti-loosening locking plate, an outer main nut is arranged outside the spring washer, and an outer auxiliary nut is arranged outside the outer main nut. When this gauge pull rod installation was used, the accurate measurement gauge should, the gauge standard was transferred the back, was about to the outer main nut and finally screws up and reach the regulation tightness, and simultaneously, six external angles of outer main nut will aim at with six angles of locking plate body. And then the six small tongue-shaped locking plates on the anti-loosening locking plate are bent 90 degrees towards the direction of the outer main nut, so that the six small tongue-shaped locking plates are wrapped on six peripheral planes of the outer main nut. And then a hexagonal sleeve is sleeved on the hexagonal cylinder surrounded by the six small tongue-shaped locking pieces, and the anti-loosening locking piece and the outer main nut are all sleeved in the hexagonal sleeve from the outside of the hexagonal cylinder. Because the length of the small tongue-shaped locking plate on the anti-loosening locking plate is greater than that of the hexagonal sleeve, the inner end of the hexagonal sleeve is close to the outer vertical surface of the outer rail clamp, and the outer end of the hexagonal sleeve is basically flush with the outer vertical surface of the outer main nut. After the hexagonal sleeve is installed, the tongue tip part of the small tongue-shaped locking plate can be exposed out of the outer end of the hexagonal sleeve, and then the exposed tongue tip part of the small tongue-shaped locking plate is turned outwards and folded for 180 degrees, so that the small tongue-shaped locking plate is turned outwards and wrapped on the outer port edge of the hexagonal sleeve. And finally, installing the external nut.
The outer rail clamp is characterized in that 1-12 anti-loosening holes are uniformly arranged at proper positions of a circle of the periphery of a pull rod hole, the anti-loosening holes are blind holes, and the anti-loosening holes can be made into a round shape or a square shape. The diameter or side length of the anti-loosening hole is 1-10 mm, and the depth of the anti-loosening hole is 1-10 mm.
The locking plate is an important part made of metal, and the original state of the locking plate is a flat sheet-shaped structure. The thickness of the pull rod is 1-5 mm, the center of the pull rod is provided with a center hole, and the center hole is a standard hole of the pull rod. The outer edge of the body is hexagonal, and the diagonal size of the hexagon is the same as or slightly larger than the outer diagonal size of the outer hexagonal main nut. Six small tongue-shaped locking plates are arranged on the hexagonal outer edge of the body, and the width of each small tongue-shaped locking plate is the same as or slightly smaller than that of the outer hexagonal plane of the outer hexagonal main nut. The length of the tongue-shaped small locking plate is 5-20 mm longer than that of the hexagonal sleeve. The tip of the small tongue-shaped locking plate is arc-shaped or triangular. The anti-loose locking plate is characterized in that 1-12 anti-loose clamps are arranged on a plane in contact with the outer rail clamp, each anti-loose clamp is a short cylinder or a short square cylinder, the diameter or the side length of each anti-loose clamp is 1-8 mm, and the height of each anti-loose clamp is 1-8 mm. The anti-loosening clamp on the anti-loosening locking plate is in one-to-one correspondence with the anti-loosening hole on the outer rail clamp, and the anti-loosening clamp is required to be completely embedded into the anti-loosening hole when the anti-loosening locking plate is installed.
The hexagonal sleeve is a hexagonal cylinder body and is made of metal or high-strength engineering plastics, the outer wall and the inner wall of the hexagonal sleeve are hexagonal, the wall thickness is 1-5 mm, and the length is 20-60 mm. The hexagonal cylinder body enclosed by six small tongue-shaped locking plates can be sleeved in the hexagonal cylinder body. The middle part of the outer wall of the hexagonal sleeve is provided with a circle of reinforcing ribs, the thickness of the reinforcing ribs is 2-5 mm, and the width of the reinforcing ribs is 3-6 mm.
When the track gauge pull rod needs to be disassembled, firstly, an external nut is disassembled, then the tongue tip part of a small tongue-shaped locking plate wrapped on the edge of an external port of a hexagonal sleeve is partially folded by 180 degrees, so that the small tongue-shaped locking plate is restored to a straight state, a special tool is used for clamping a reinforcing rib in the middle of the hexagonal sleeve, the hexagonal sleeve can be withdrawn, and then the small tongue-shaped locking plates are folded by 90 degrees, so that the whole locking plate is restored to a flat state. All parts of the tie rod can be removed according to the removal steps of the common bolt.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of a non-loose track gauge tie rod
1. Rod body 2 of gauge pull rod, outer end 3 of rod body, outer rail clamp 4, anti-loose locking piece 5, flat washer 6, spring washer 7, outer main nut 8, hexagonal sleeve 9, outer auxiliary nut 10, anti-loose hole 11, anti-loose clamp
FIG. 2 is a position diagram of three anti-loosening holes on the outer vertical surface of the outer rail clip
10. Anti-loosening hole 12, outer vertical surface 13 of outer rail clamp and pull rod hole
FIG. 3 is a schematic plan view of the locking plate
11. Anti-loose clamp 14, pull rod hole 4 in the center of anti-loose locking piece, anti-loose locking piece 16, small tongue-shaped locking piece 17 and tongue tip part
FIG. 4 is a schematic diagram of a hexagonal sleeve shape
8. Hexagonal sleeve 19. reinforcing rib
Detailed description of the preferred embodiments
The invention relates to a non-loose track gauge pull rod, a loose-proof structure and application thereof.
Example 1.
The specification, model and quality requirements of the non-loose railway track gauge pull rod (taking a common track gauge pull rod as an example) conform to national standards, international standards and railway industry standards.
The invention relates to a non-loose railway gauge pull rod, which is an innovative new structural screw anti-loose technology. In the new anti-loose structure, there are three invented components, namely a new type outer rail clamp, an anti-loose locking sheet and a hexagonal sleeve.
On the outer facade of the novel outer rail clamp, 1-12 anti-loosening holes are uniformly arranged in one circle at the periphery of the pull rod hole, three anti-loosening holes are preferably arranged in the embodiment and are uniformly distributed in a triangular shape (as shown in fig. 2), the shape of each anti-loosening hole is preferably circular, the diameter of each anti-loosening hole is preferably 6 mm, and the depth of each anti-loosening hole is preferably 6 mm. The novel outer rail clamp with the anti-loosening hole has a novel anti-loosening function and plays an important role in an anti-loosening structure.
The locking plate is a brand-new invented assembly, and is a core assembly in a locking structure. The initial state of the locking piece is a flat piece (as shown in figure 3), and has certain flexibility. The thickness of the preferable locking piece in the embodiment is 2 mm, the central hole of the locking piece is a standard hole of the track gauge pull rod, the body of the locking piece is hexagonal, and the external diagonal size of the hexagon is the same as or larger than 3 mm than that of the external main nut. Six small tongue-shaped locking pieces are arranged on the hexagonal outer edge of the body, the width of each small tongue-shaped locking piece is the same as the length of the hexagonal straight edge of the anti-loosening locking piece body, the length of each small tongue-shaped locking piece is 40-80 mm, and the tip of each small tongue-shaped locking piece is arc-shaped. 1-12 anti-loosening clamps are uniformly arranged at a proper position of a circle of the periphery of a central hole of the anti-loosening locking piece, in the embodiment, three anti-loosening clamps are preferably arranged, and the anti-loosening clamps are preferably short cylinders, the diameters of the anti-loosening clamps are 5 mm, and the length of the anti-loosening clamps is 5 mm.
The hexagonal sleeve is a hexagonal cylinder (as shown in fig. 4), in the embodiment, the hexagonal sleeve is preferably made of aluminum alloy material, the wall thickness is preferably 2.5 mm, the length of the hexagonal sleeve is 42 mm, and the diagonal diameter of the inner cylinder of the hexagonal sleeve is 6-8 mm larger than that of the outer main nut. The thickness of the reinforcing rib in the middle of the outer surface of the hexagonal sleeve is 2.5 mm, and the width of the reinforcing rib is 5 mm.
The installation structure of the non-loose railway gauge tie rod in the embodiment is characterized in that: when the gauge pull rod is installed at the bottom of the steel rail, the four rail clamps respectively clamp two steel rails, after the outer rail clamp 3 is installed, the locking piece 4 is installed outside the outer rail clamp 3 in a clinging mode, the anti-loosening clamp 11 on the locking piece 4 is aligned to the anti-loosening hole 10 on the outer rail clamp 3, and the anti-loosening clamp 11 is to be completely embedded into the anti-loosening hole 10. The flat washer 5 and the spring washer 6 are then installed in sequence, followed by the outer main nut 7. At this time, the gauge is accurately measured, the gauge is adjusted to the standard gauge and fixed, and the outer main nut 7 is screwed to reach the final tightening degree standard. Meanwhile, six external angles of the outer main nut are aligned with six external angles of the hexagonal outer edge of the anti-loosening locking plate body. And then, six small tongue-shaped locking plates 16 on the anti-loose locking plate are bent by 90 degrees towards the direction of the outer main nut 7, and the six small tongue-shaped locking plates after being bent surround a hexagonal cylinder body and are wrapped on six peripheral planes of the outer main nut. And then the hexagonal sleeve 8 is arranged outside the hexagonal cylinder surrounded by the six small tongue-shaped locking plates, so that the small anti-loose locking plates and the flat washers, the spring washers and the outer main nuts are all sleeved in the hexagonal sleeve from the outside of the hexagonal cylinder surrounded by the small tongue-shaped locking plates. The inner end of the hexagonal sleeve is close to the outer vertical surface of the outer rail clamp, and the outer end of the hexagonal sleeve is approximately flush with the outer vertical surface of the outer main nut 7. Because the length of the tongue-shaped small locking plate is larger than that of the hexagonal sleeve, after the hexagonal sleeve 8 is installed, the tongue tip part 17 of the tongue-shaped small locking plate can be exposed out of the outer end of the hexagonal sleeve 8. And then the tongue tip part of the small exposed tongue-shaped locking plate is turned outwards and folded for 180 degrees, so that the tongue tip part is turned outwards and wrapped on the outer port edge of the hexagonal sleeve 8. So far, through the twice deformation of locking plate and the combination of anti-loosening clamp and anti-loosening hole, just connect novel outer rail card 3, outer main nut 7 and hexagonal cover 8 into a whole to make outer main nut 7 can not take place again and become flexible by oneself. And finally, an outer auxiliary nut 9 is installed, and the outer auxiliary nut 9 is positioned at the outer end head part 2 of the pull rod, so that an important protection effect can be played on the outer main nut 7.
When the non-loose railway gauge pull rod needs to be disassembled, the outer nut 9 is disassembled, the tongue tip part of the small tongue-shaped locking plate of the anti-loose locking plate is folded back by 180 degrees, the small tongue-shaped locking plate is restored to a straight state, and the hexagonal sleeve is withdrawn by clamping the reinforcing rib of the hexagonal sleeve by using a special tool. Then the small tongue-shaped locking plate is folded back by 90 degrees, so that the whole body is restored to a flat plate state. And then all parts of the whole gauge pull rod are completely disassembled according to a common bolt disassembling method.
Claims (6)
1. A non-loose railway gauge pull rod is characterized in that: on the outer vertical surfaces of the outer rail clamps at two ends of the gauge pull rod, 1-12 anti-loosening holes are uniformly arranged on a circle of the periphery of a pull rod through hole, a locking plate is arranged on the pull rod outside the outer rail clamps, 1-12 anti-loosening clamps are arranged on a plane where the locking plate is contacted with the outer rail clamps, the anti-loosening clamps on the locking plate and the anti-loosening holes on the outer rail clamps are in one-to-one correspondence, when the locking plate is installed, the locking plates are completely embedded into the anti-loosening holes, a flat washer and a spring washer are installed outside the locking plate, an outer main nut is installed outside the locking plate, an outer auxiliary nut is installed outside the locking plate, when the outer main nut reaches the final tightening degree, six outer corners of the outer main nut are aligned with six outer corners of a locking plate body, then the six small tongue-shaped locking plates on the locking plate are bent towards the direction of the nut by 90 degrees, so that the six small tongue-shaped locking plates are wrapped on the, and then a hexagonal sleeve is arranged outside the hexagonal cylinder surrounded by the six small tongue-shaped locking plates, the length of the small tongue-shaped locking plates is greater than that of the hexagonal sleeve, after the hexagonal sleeve is arranged, the tongue tip part of the small tongue-shaped locking plates is exposed out of the outer end of the hexagonal sleeve, and the exposed tongue tip part of the small tongue-shaped locking plates is turned outwards and folded by 180 degrees so as to be turned outwards and wrapped on the outer port edge of the hexagonal sleeve.
2. The non-loosening railway gage rod as defined in claim 1, wherein: on the outer vertical surface of the outer rail clamp, 1-12 anti-loosening holes are uniformly arranged on the periphery of the through hole of the pull rod in a circle, the anti-loosening holes are blind holes, the anti-loosening holes are round or square, the diameter or the side length of the anti-loosening holes is 1-10 mm, and the depth of the anti-loosening holes is 1-10 mm.
3. The non-loosening railway gage rod as defined in claim 1, wherein: the locking plate is a metal sheet and has certain flexibility, a central hole of the locking plate is a standard hole of a pull rod, the outer edge of the body of the locking plate is consistent with the shape of an outer main nut, such as a hexagon, the diagonal size of the hexagon is the same as or slightly larger than that of the outer main nut, six small tongue-shaped locking plates are arranged on the hexagonal outer edge of the body of the locking plate, the width of each small tongue-shaped locking plate is the same as or slightly smaller than that of the outer hexagon of the outer main nut, the length of each small tongue-shaped locking plate is 5-20 mm longer than that of a hexagonal sleeve, the thickness of the locking plate is 1-5 mm, 1-12 anti-loosening clamps are arranged on a plane where the locking plate is contacted with an outer rail clamp, each anti-loosening clamp is a cylinder or a square cylinder, the anti-loosening clamps on the locking plate are in one-to-loosening holes on the outer rail clamp.
4. The non-loosening railway gage rod as defined in claim 1, wherein: the hexagonal sleeve is a cylinder body with hexagonal outer wall and hexagonal inner wall, is made of metal or high-strength engineering plastics, has wall thickness of 1-5 mm and length of 20-60 mm, and has a circle of reinforcing ribs in the middle of its outer surface, the reinforcing ribs have thickness of 2-5 mm and width of 3-6 mm.
5. The non-loosening railway gage rod as defined in claim 1, wherein: when the gauge pull rod is installed, after the gauge standard is adjusted, when an outer main nut reaches the final screwing degree, six outer corners of the outer main nut are aligned with six outer corners of the anti-loosening locking plate body, six small tongue-shaped locking plates are bent 90 degrees towards the outer main nut, the six outer peripheral planes are wrapped on six peripheral planes of the outer main nut, the hexagonal sleeve is installed outside a hexagonal cylinder body formed by the six small tongue-shaped locking plates in a closed mode, the inner end of the hexagonal sleeve is close to the outer vertical face of the outer rail clamp, the outer end of the hexagonal sleeve is approximately flush with the outer vertical face of the outer main nut, the length of the small tongue-shaped locking plate is larger than that of the hexagonal sleeve, after the hexagonal sleeve is installed, the tongue tip portion of the small tongue-shaped locking plate is exposed out of the outer end of the hexagonal sleeve, the exposed tongue tip portion is turned outwards and bent 180 degrees, and the exposed tongue tip portion is wrapped on the opening edge of the hexagonal sleeve in.
6. The non-loosening railway gage rod as defined in claim 1, wherein: when the gauge pull rod needs to be disassembled, the auxiliary nut is disassembled firstly, the tongue point part of the small tongue-shaped locking plate wrapped on the outer port edge of the hexagonal sleeve is reversely folded by 180 degrees, so that the small tongue-shaped locking plate is restored to a straight state, the hexagonal sleeve is withdrawn and disassembled, the small tongue-shaped locking plates are folded by 90 degrees towards the plane direction of the locking plate, so that the locking plate is integrally restored to an original flat state, and finally all parts of the gauge pull rod can be disassembled according to the disassembling step of common bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811085634.6A CN110924239B (en) | 2018-09-19 | 2018-09-19 | Non-loose railway track gauge pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811085634.6A CN110924239B (en) | 2018-09-19 | 2018-09-19 | Non-loose railway track gauge pull rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110924239A CN110924239A (en) | 2020-03-27 |
| CN110924239B true CN110924239B (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811085634.6A Active CN110924239B (en) | 2018-09-19 | 2018-09-19 | Non-loose railway track gauge pull rod |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US753415A (en) * | 1904-03-01 | Nut-look | ||
| US850665A (en) * | 1906-09-29 | 1907-04-16 | Howard E Marsch | Nut-lock. |
| US1228679A (en) * | 1916-10-14 | 1917-06-05 | Robert A Lewis | Lock-washer. |
| FR23692E (en) * | 1920-10-09 | 1921-12-15 | Oscar Albert Domard | Bolt with non-removable nut and locknut |
| US1760934A (en) * | 1929-04-09 | 1930-06-03 | Central Frog & Switch Company | Track brace |
| JPS5432404U (en) * | 1977-08-08 | 1979-03-03 | ||
| CN2289897Y (en) * | 1997-01-27 | 1998-09-02 | 焦勃 | Anti-loosing washer |
| CN2379512Y (en) * | 1999-03-24 | 2000-05-24 | 周俊生 | Insulation type rail distance rod |
| CN2408297Y (en) * | 1999-05-28 | 2000-11-29 | 文志雄 | Anti-loose screw with limiting cover |
| WO2006114560A1 (en) * | 2005-04-26 | 2006-11-02 | Jeffrey Slee | Bolt connection with gripping blade-edged points |
| CN201330352Y (en) * | 2008-12-18 | 2009-10-21 | 北京世韩世纪科技有限公司 | Fastening mechanism of track rod locking and retaining nut |
| CN201354792Y (en) * | 2009-03-03 | 2009-12-02 | 张昌华 | Bolt connector tightly locked by suite lock-tongue nut |
| CN203594670U (en) * | 2013-10-31 | 2014-05-14 | 新奥科技发展有限公司 | Fastening gasket and gas turbine rotor fastening device |
-
2018
- 2018-09-19 CN CN201811085634.6A patent/CN110924239B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US753415A (en) * | 1904-03-01 | Nut-look | ||
| US850665A (en) * | 1906-09-29 | 1907-04-16 | Howard E Marsch | Nut-lock. |
| US1228679A (en) * | 1916-10-14 | 1917-06-05 | Robert A Lewis | Lock-washer. |
| FR23692E (en) * | 1920-10-09 | 1921-12-15 | Oscar Albert Domard | Bolt with non-removable nut and locknut |
| US1760934A (en) * | 1929-04-09 | 1930-06-03 | Central Frog & Switch Company | Track brace |
| JPS5432404U (en) * | 1977-08-08 | 1979-03-03 | ||
| CN2289897Y (en) * | 1997-01-27 | 1998-09-02 | 焦勃 | Anti-loosing washer |
| CN2379512Y (en) * | 1999-03-24 | 2000-05-24 | 周俊生 | Insulation type rail distance rod |
| CN2408297Y (en) * | 1999-05-28 | 2000-11-29 | 文志雄 | Anti-loose screw with limiting cover |
| WO2006114560A1 (en) * | 2005-04-26 | 2006-11-02 | Jeffrey Slee | Bolt connection with gripping blade-edged points |
| CN201330352Y (en) * | 2008-12-18 | 2009-10-21 | 北京世韩世纪科技有限公司 | Fastening mechanism of track rod locking and retaining nut |
| CN201354792Y (en) * | 2009-03-03 | 2009-12-02 | 张昌华 | Bolt connector tightly locked by suite lock-tongue nut |
| CN203594670U (en) * | 2013-10-31 | 2014-05-14 | 新奥科技发展有限公司 | Fastening gasket and gas turbine rotor fastening device |
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| Publication number | Publication date |
|---|---|
| CN110924239A (en) | 2020-03-27 |
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