CN214007741U - Automatic locking fastening components that takes off of chucking formula - Google Patents
Automatic locking fastening components that takes off of chucking formula Download PDFInfo
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- CN214007741U CN214007741U CN202022723917.8U CN202022723917U CN214007741U CN 214007741 U CN214007741 U CN 214007741U CN 202022723917 U CN202022723917 U CN 202022723917U CN 214007741 U CN214007741 U CN 214007741U
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Abstract
An automatic clamping type anti-loosening fastening assembly belongs to the technical field of mechanical fastening, and is characterized in that a fixing retainer ring and an anti-loosening clamp spring are additionally arranged on a screw rod and a nut; the screw is provided with a first screw fastening surface, the nut is provided with a first nut fastening surface, the middle part of the first nut fastening surface is provided with a first snap ring groove, the retention retainer ring is provided with a second nut fastening surface and a second screw fastening surface, and the middle part of the second nut fastening surface is provided with a second snap ring groove; the retention retainer ring comprises an embedded retainer ring and a packing retainer ring; the nut clamping part and the screw rod are clamped and fixed by the screw rod and the nut through the retention clamping ring, and the anti-falling clamping spring is used for resisting the retention clamping ring to prevent falling off, so that the purpose of never loosening is realized; the anti-drop snap spring is assembled in the snap spring ring groove and then is mounted conveniently without any auxiliary tool.
Description
Technical Field
The utility model belongs to the technical field of mechanical fastening, especially an automatic locking take off fastening components of chucking formula.
Background
Fastening assemblies are parts used to join two or more components together tightly. Common fastening components include bolts, screws, bolts, and the like, and nuts and bolts are generally fastened stably. However, if the fastened member is vibrated for a long time, the vibration frequency difference exists between the connecting members, so that each connecting member in the connecting structure can generate a certain displacement, the connection between the nut and the bolt becomes loose, and even falls off, and the stability and the safety of the operation of the connecting structure and even the whole device are affected. Taking the fastening screw and the nut on the train track as an example, when a train passes through the track at a certain speed, the fastening screw and the nut on the track can generate vibration with a certain frequency, so that the fastening screw and the nut can generate certain displacement, and the connection is loosened, therefore, on the old train track, a maintainer needs to overhaul regularly.
The current common mode for preventing the bolt from loosening is as follows: the double-nut pressing, the bolt and nut inserting key, the bolt and nut opening inserting metal rod, the iron wire winding looseness prevention, the bolt and nut clamping tooth meshing or direct gluing or welding and the like.
The applicant has long studied the anti-loosening technology, developed the clamp spring type clamping technology, and has applied for a series of patents in the previous period. However, the series of patents applied in the prior art all require a tool to clamp or remove the clamping part, and the practical application is not convenient, for example, an automatic clamping type anti-loosening fastening assembly with application number 2020224005027 applied on 26.26.10.2020, the scheme is additionally provided with a retention collar and an anti-loosening snap spring on the basis of a bolt and a nut; the bolt is provided with a first screw fastening surface, the nut is divided into an inner end cylinder and an outer end cylinder, a first nut fastening surface is arranged in the outer layer, a second nut fastening surface is arranged on the outer surface of the retention retainer ring, a second screw fastening surface is arranged on the inner surface of the retention retainer ring, and clamp spring ring grooves are formed in the first nut fastening surface and the second nut fastening surface; therefore, the bolt and the nut are clamped and fixed in a space formed by the outer end cylinder of the nut and the screw rod through the retention retainer ring, and the anti-falling clamp spring is used for resisting the retention retainer ring to prevent falling off, so that the purpose of never loosening is realized. However, after the trial in the period, the assembly can be prevented from loosening, but the anti-loosening clamp spring can be installed or detached only by a tool, and is inconvenient to install or detach.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to above-mentioned technical problem, provide an adopt the jump ring to fix the mounting structure who carries out automatic chucking on the rand to install rand and jump ring once only fast under the condition that does not need the instrument, and reach from the card effect, thereby accomplish the purpose of locking pine takes off, so that improve work efficiency.
In order to solve the technical problem, the utility model provides an automatic locking formula locking fastening components that takes off, including screw rod and nut, the screw rod can be the screw rod on the bolt, also can be the nut on stud or the stud, including any fastening components that contains screw rod and nut and combine together, its characterized in that still includes maintenance rand and anticreep jump ring.
The screw rod is provided with an external thread, and the external thread is provided with a first screw rod fastening surface.
The barrel of the nut is divided into two parts, namely a screwing part positioned at the barrel at the inner end and a clamping part positioned at the barrel at the outer end, wherein the inner surface of the screwing part is provided with internal threads which are matched with the external threads on the screw rod, so that the nut and the screw rod can be mutually screwed and fastened; the clamping part is provided with a first nut fastening surface, and the middle part of the first nut fastening surface is provided with a first clamp spring ring groove.
The fixing retainer ring is a cylindrical structure body, a second nut fastening surface and a second screw fastening surface are arranged on the cylindrical structure body, and the shape and the specification of the second nut fastening surface are matched with those of the first nut fastening surface and can be sleeved and clamped with each other; a second clamp spring ring groove is formed in the middle of the second nut fastening surface; the second screw fastening surface is matched with the first screw fastening surface in shape and specification and can be sleeved and clamped with each other, so that the retention retainer ring can be stably and seamlessly inserted into or wrapped and inserted into the clamping part of the nut.
The anti-falling clamp spring is a filter-ring-shaped elastic clamping piece; the ring filter-shaped elastic clamping piece is made of an elastic material and can be elastically hooped or loosened, and the average value of the inner diameter and the outer diameter of the anti-falling clamp spring in a natural state is equal to the diameter of the nut fastening surface, namely the diameter of the first nut fastening surface and the diameter of the second nut fastening surface; the edge of the gap of the anti-falling clamp spring is not provided with a loading and unloading handle.
Furthermore, the retention retainer ring is an embedded retainer ring, a second nut fastening surface on the embedded retainer ring is arranged on the surface of the outer annular wall of the retainer ring, and a second screw fastening surface is arranged on the surface of the inner annular wall of the retainer ring; correspondingly, a first nut fastening surface on the nut is arranged on the inner annular wall surface of the clamping part; at the moment, the inner diameter of the nut clamping part is larger than that of the nut screwing part; in use, the retaining collar is inserted in a gap between an inner annular wall surface of the nut gripping portion and the screw.
The other structure is that the retention retainer ring is an insertion retainer ring, a second nut fastening surface on the insertion retainer ring is arranged on the outer end surface of the inner ring wall of the retainer ring, and a second screw fastening surface is arranged on the inner end surface of the inner ring wall of the retainer ring; correspondingly, the first nut fastening surface on the nut is arranged on the surface of the outer annular wall of the clamping part; at the moment, the inner diameter of the nut clamping part is equal to that of the nut screwing part; in use, the retention collar is inserted over the outer circumferential wall surface of the nut gripping portion.
Furthermore, the screw fastening surface is a polygonal-prism-shaped straight thread structure surface, namely the first screw fastening surface is a straight thread surface annularly arranged on the outer surface of the external thread of the screw, and a plurality of the annularly arranged straight thread surfaces are directly intersected or virtually extended and intersected to form a polygonal-prism-shaped straight-surface external thread, so that the straight surfaces are uniformly arranged to form the regular-polygonal-prism-shaped straight-surface external thread; the second screw fastening surface is the inner wall of a polygonal-prism straight structural surface, so that the inner wall of a regular-polygonal-prism straight structural surface can be manufactured; the inner side of the transverse section of the retention clamping ring is polygonal, and further can be regular polygon, and the longitudinal surface of the polygonal inner wall of the retention clamping ring is a flat plane.
The other structure is that the screw fastening surface is a tenon-and-mortise structure surface, namely the first screw fastening surface is a longitudinal groove annularly arranged on the outer surface of the external thread of the screw, and the plurality of annularly arranged longitudinal grooves are called screw locking grooves; so that the screw locking grooves can be uniformly distributed in a ring shape; the second screw fastening surface is a longitudinal tenon strip annularly arranged on the inner wall of the retention retainer ring, and a plurality of annularly arranged longitudinal tenon strips are called screw tenon clamping strips so as to be made into annularly and uniformly arranged screw tenon clamping strips; the screw rod tenon clamping strip and the screw rod locking groove are mutually wedged, and the screw rod tenon clamping strip can be stably inserted into the screw rod locking groove.
Further, the nut fastening surface is a polygonal-prism straight structure surface, and the first nut fastening surface is a polygonal-prism straight structure surface, so that a regular polygonal-prism straight structure surface can be manufactured; the second nut fastening surface is a polygonal-prism straight structure surface, so that a regular polygonal-prism straight structure surface can be manufactured; in one case, the inner side of the cross section of the clamping part of the nut is a regular polygon, the longitudinal direction of the inner wall of the clamping part is a straight plane, correspondingly, the cross section of the outer surface of the retention clamping ring is a regular polygon, and the longitudinal direction of the outer wall of the retention clamping ring is a straight plane; in another aspect, the outer side of the cross-section of the gripping portion of the nut is a regular polygon, the longitudinal direction of the outer wall of the gripping portion is a flat plane, and correspondingly, the cross-section of the inner surface of the retention collar is a regular polygon, and the longitudinal direction of the inner wall of the retention collar is a flat plane.
The other structure is that the nut fastening surface is a tenon-and-mortise structure surface; the first nut fastening surface is a nut locking groove which is annularly arranged, and the second nut fastening surface is a nut tenon strip which is annularly arranged; the nut tenon strip and the nut locking groove are mutually wedged, and the nut tenon strip can be stably inserted into the nut locking groove; one of the situations is that the first nut fastening surface is a longitudinal groove annularly arranged on the inner surface of the nut clamping part, and a plurality of the annularly arranged longitudinal grooves are called as nut locking grooves and can be made into nut locking grooves which are annularly and uniformly arranged; correspondingly, the second nut fastening surface is a longitudinal tenon strip annularly arranged on the outer wall of the retention retainer ring, and the plurality of annularly arranged longitudinal tenon strips are called nut clamping tenon strips; thereby being made into nut tenon clamping strips which are uniformly distributed in a ring shape; the first nut fastening surface is a longitudinal groove annularly arranged on the outer surface of the nut clamping part, and a plurality of annularly arranged longitudinal grooves are called nut locking grooves and can be made into annularly and uniformly arranged nut locking grooves; correspondingly, the second nut fastening surface is a longitudinal tenon strip annularly arranged on the inner wall of the retention retainer ring, and the plurality of annularly arranged longitudinal tenon strips are called nut clamping tenon strips; so that the nut tenon strips can be made into nut tenon strips which are uniformly distributed in a ring shape.
In a further structure, the nut fastening surface is a tenon-and-mortise structure surface; the first nut fastening surface is a nut tenon strip which is annularly arranged, and the second nut fastening surface is a nut locking groove which is annularly arranged; the nut tenon strip and the nut locking groove are mutually wedged, and the nut tenon strip can be stably inserted into the nut locking groove; in one case, the first nut fastening surface is a longitudinal tenon strip annularly arranged on the inner surface of the nut clamping part, and a plurality of annularly arranged longitudinal tenon strips are called nut tenon strips so as to be made into nut tenon strips uniformly arranged annularly; correspondingly, the second nut fastening surface is a longitudinal groove annularly arranged on the outer wall of the retention retainer ring, and the plurality of annularly arranged longitudinal grooves are called nut locking grooves; thereby being made into nut locking grooves which are uniformly distributed in a ring shape; the other situation is that the first nut fastening surface is a longitudinal tenon strip annularly arranged on the outer surface of the nut clamping part, and a plurality of longitudinal tenon strips annularly arranged are called nut clamping tenon strips, so that the nut clamping tenon strips annularly and uniformly arranged can be manufactured; correspondingly, the second nut fastening surface is a longitudinal groove annularly arranged on the inner wall of the retention retainer ring, and the plurality of annularly arranged longitudinal grooves are called nut locking grooves; thereby being made into nut locking grooves which are uniformly distributed in a ring shape.
Furthermore, the outer end of the retention retainer ring is provided with a closed cap top.
Furthermore, a cap peak is arranged at the cap top.
Furthermore, a rubber gasket is arranged between the retention retainer ring and the nut.
Further, the depth of the first clamp spring ring groove and the second clamp spring ring groove is the same as the rod diameter of the anti-falling clamp spring, and the rod diameter is the diameter of the elastic steel rod for manufacturing the anti-falling clamp spring and is not the overall diameter of the anti-falling clamp spring.
The second screw fastening surface is annularly arranged on the inner wall surface of the retention retainer ring to form n straight planes, the second nut fastening surface is annularly arranged on the outer wall surface or the inner wall surface of the retention retainer ring to form m straight planes, namely the second screw fastening surface is n straight planes or screw tenon strips, and the second nut fastening surface is m straight planes or nut locking grooves or nut tenon strips; wherein n and m may or may not be equal, but wherein at least one of the straight planes on the second screw tightening surface is aligned with one of the straight planes on the second nut tightening surface, regardless of whether n is equal to m. In particular, when the retention collar has an inner surface with regular octagonal prism-like flat walls and an outer surface with regular seventeen prism-like flat walls, for example, where the flat walls of one side of the inner surface are aligned parallel to one of the flat walls of the outer surface; or when the inner surface of the retention retainer ring is provided with eight uniformly distributed screw rod tenon strips and the outer surface is provided with seventeen uniformly distributed nut locking grooves, one screw rod tenon strip on the inner surface is aligned with one nut locking groove on the outer surface; or when the inner surface of the retention retainer ring is eight screw tenon strips which are uniformly distributed and the outer surface is a regular seventeen prism-shaped flat wall, one screw tenon strip on the inner surface is aligned with one flat wall on the outer surface in parallel; the aligned position is provided with an alignment mark.
When the fastening surfaces of the second nuts on the retention clamp are annularly and uniformly distributed into m, the fastening surfaces of the first nuts on the nuts are annularly and uniformly distributed into m, wherein at least one of the fastening surfaces of the first nuts is aligned with a straight plane on the fastening surface of the second nut; the aligned position is provided with an alignment mark.
When the anti-loosening clamp ring is in contact with the inserted nut fastening surface, the anti-loosening clamp spring is elastically compressed to enable the nut fastening surface to pass smoothly until the first clamp spring ring groove is in butt joint with the second clamp spring ring groove, so that the anti-loosening clamp spring has enough space to restore to a natural state, the anti-loosening clamp spring can mutually clamp the first nut fastening surface and the second nut fastening surface to enable the first nut fastening surface and the second screw fastening surface to be incapable of loosening, and further the first screw fastening surface and the second screw fastening surface can not rotate, and generally cannot be loosened.
The utility model has the advantages that the outer end cylinder clamping part of the nut is clamped and fixed with the screw rod by the screw rod and the nut through the retention retainer ring, and the retention retainer ring is supported by the anti-dropping clamp spring to prevent dropping, so that the purpose of never loosening is realized; the anti-drop snap spring is assembled in the snap spring ring groove and then is installed conveniently, no auxiliary tool is needed, and the nut and the screw rod can be fixed at one time; the structure that each part of this fastening assembly pin-down each other has realized never loosening connection characteristic, has fundamentally solved the not hard up problem of screwed connection, is fit for using under special conditions such as high-frequency vibration.
Drawings
Fig. 1 is an exploded view of the components in embodiment 1.
Fig. 2 is an exploded view of the components in embodiment 2.
Fig. 3 is an exploded view of the components in embodiment 3.
Fig. 4 is a schematic structural view of an enclosing and inserting type collar adopted in the present invention, in the figure, both the second nut fastening surface and the second screw fastening surface are polygonal-prism straight structural surfaces, and in addition, the second nut fastening surface and the second screw fastening surface can also be screw tenon strips, nut locking grooves or nut tenon strips.
Fig. 5 is a schematic structural view of an insertion type collar adopted in the present invention, in which the second nut fastening surface is a polygonal-prism straight structural surface, the second screw fastening surface is a screw tenon strip, the second screw fastening surface may also be a polygonal-prism straight structural surface, and the second nut fastening surface may also be a nut locking groove or a nut tenon strip.
Fig. 6 is a schematic structural diagram of an anti-drop snap spring manufactured by using a round-diameter elastic steel bar, which is adopted in the present invention, and in addition, an anti-drop snap spring can be manufactured by using a square-diameter steel bar, a triangular-section steel bar or a semi-round-diameter steel bar.
In the figure: 1. the novel cap comprises a screw rod, 2 nuts, 3 retention clamping rings, 4 anti-falling clamping springs, 5 first screw rod fastening surfaces, 6 screwing parts, 7 clamping parts, 8 first nut fastening surfaces, 9 first clamping spring ring grooves, 10 second nut fastening surfaces, 11 second screw rod fastening surfaces, 12 second clamping spring ring grooves, 13 embedded clamping rings, 14 wrapped clamping rings, 15 polygonal-prism-shaped straight thread structural surfaces, 16 polygonal-prism-shaped straight structural surfaces, 17 screw rod locking grooves, 18 screw rod clamping tenon strips, 19 cap tops, 20 cap brims, 21 rubber gaskets and 22 alignment marks.
Detailed Description
The present invention is further described with reference to the following examples, which are intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example 1.
As shown in fig. 1, an automatic clamping and anti-loosening fastening assembly adopting an embedded clamping ring is manufactured, and comprises a screw rod 1, a nut 2, a fixing clamping ring 3 and an anti-loosening clamping spring 4.
The screw rod 1 is provided with an external thread, and the external thread is provided with a first screw rod fastening surface 5.
The barrel of the nut 2 is divided into two parts, namely a screwing part 6 positioned at the barrel at the inner end and a clamping part 7 positioned at the barrel at the outer end, wherein the inner surface of the screwing part 6 is provided with internal threads which are matched with the external threads on the screw rod 1, so that the nut 2 and the screw rod 1 can be mutually screwed and fastened; the clamping part 7 is provided with a first nut fastening surface 8, and the middle part of the first nut fastening surface 8 is provided with a first clamp spring ring groove 9.
The retention retainer ring 3 is a cylindrical structure body, a second nut fastening surface 10 and a second screw fastening surface 11 are arranged on the cylindrical structure body, wherein the shape and the specification of the second nut fastening surface 10 are matched with those of the first nut fastening surface 8, and the second nut fastening surface and the first nut fastening surface can be sleeved and clamped with each other; a second snap spring ring groove 12 is formed in the middle of the second nut fastening surface 10; the second screw fastening surface 11 and the first screw fastening surface 5 are shaped and dimensioned to engage each other so that the retention collar 3 can be securely inserted or wrapped around the gripping portion 7 of the nut 2 without any play.
The anti-falling clamp spring 4 is a filter-ring-shaped elastic clamping piece; the ring filter-shaped elastic clamping piece is made of elastic materials and can be elastically hooped or loosened, and the average value of the inner diameter and the outer diameter of the anti-falling clamping spring 4 in a natural state is equal to the diameter of the nut fastening surface, namely the diameter of the first nut fastening surface 8 and the diameter of the second nut fastening surface 10.
The embodiment makes the retention clamping ring 3 as an embedded clamping ring 13, the second nut fastening surface 10 on the embedded clamping ring 13 is arranged on the outer annular wall surface of the retention clamping ring 3, and the second screw fastening surface 11 is arranged on the inner annular wall surface of the retention clamping ring 3; correspondingly, the first nut fastening surface 8 on the nut 2 is arranged on the inner annular wall surface of the clamping part 7; at this time, the inner diameter of the nut lock portion 7 is larger than the inner diameter of the nut screw portion 6.
Then, the screw fastening surface is made into a mortise and tenon structure surface, namely the first screw fastening surface 5 is made into longitudinal grooves annularly distributed on the outer surface of the external thread of the screw 1, and the longitudinal grooves annularly distributed are called as screw locking grooves 17; in the embodiment, the screw locking grooves 17 are uniformly distributed in an annular shape; the second screw fastening surface 11 is made into longitudinal tenon strips annularly arranged on the inner wall of the retention retainer ring 3, a plurality of annularly arranged longitudinal tenon strips are called screw tenon clamping strips 18, and the screw tenon clamping strips 18 are made into annularly and uniformly arranged in the embodiment; the screw tenon strip 18 and the screw locking groove 17 are mutually wedged, and the screw tenon strip 18 can be stably inserted into the screw locking groove 17.
Meanwhile, the nut fastening surface is made into a polygonal-prism-shaped straight structure surface 16, the first nut fastening surface 8 is made into a polygonal-prism-shaped straight structure surface 16, and in the embodiment, the first nut fastening surface 8 is made into a regular polygonal-prism-shaped straight structure surface, that is, the inner side of the cross section of the clamping part 7 of the nut 2 is a regular polygon, and the longitudinal direction of the inner wall of the clamping part 7 is a straight plane; the second nut fastening surface 10 is made into a polygonal-prism-shaped flat structure surface 16, which is made into a regular-polygonal-prism-shaped flat structure surface in the embodiment, that is, the cross section of the outer surface of the retention retainer ring 3 is a regular polygon, and the longitudinal direction of the outer wall of the retention retainer ring 3 is a flat plane.
This embodiment will the outer end of maintenance rand 3 is equipped with closed crown 19, just the crown outside still is equipped with brim of a hat 20, then still set up rubber packing ring 21 between maintenance rand and the nut, will simultaneously the degree of depth of first jump ring annular 9 and second jump ring annular 12 is made to be the same with the rod diameter of anticreep jump ring 4.
The utility model provides a supporting structure subassembly, the automatic chucking locking fastening assembly who adopts mortise and tenon joint structure screw rod fastening face and the straight structural plane of polygon prism of inserted rand promptly.
During the use, pass screw rod 1 by the fastener, screw up nut 2 on screw rod 1, and make the tight portion of spiral shell 6 support tightly by the fastener, then suit anticreep jump ring 4 in second jump ring annular 12, then inlay the maintenance rand 3 and insert, when first nut fastening surface 8 contact anticreep jump ring 4, anticreep jump ring 4 can be by elastic compression, make first nut fastening surface 8 pass through smoothly, until first jump ring annular 9 and second jump ring annular 12 butt joint, make anticreep jump ring 4 resume natural state in the space that constitutes after first jump ring annular 9 and second jump ring annular 12 butt joint, anticreep jump ring 4 can be with first nut fastening surface 8 and second nut fastening surface 10 chucking each other this moment, make it unable pine to take off, and then make first screw rod fastening surface 5 and second screw rod fastening surface 11 unable rotation, make this kind of fastening assembly unable pine take off on the whole.
Example 2.
An automatic clamping and anti-loosening fastening assembly adopting an enclosing and inserting type clamping ring is manufactured as shown in fig. 2 and comprises a screw rod 1, a nut 2, a fixing clamping ring 3 and an anti-loosening clamping spring 4.
The screw rod 1 is provided with an external thread, and the external thread is provided with a first screw rod fastening surface 5.
The barrel of the nut 2 is divided into two parts, namely a screwing part 6 positioned at the barrel at the inner end and a clamping part 7 positioned at the barrel at the outer end, wherein the inner surface of the screwing part 6 is provided with internal threads which are matched with the external threads on the screw rod 1, so that the nut 2 and the screw rod 1 can be mutually screwed and fastened; the clamping part 7 is provided with a first nut fastening surface 8, and the middle part of the first nut fastening surface 8 is provided with a first clamp spring ring groove 9.
The retention retainer ring 3 is a cylindrical structure body, a second nut fastening surface 10 and a second screw fastening surface 11 are arranged on the cylindrical structure body, wherein the shape and the specification of the second nut fastening surface 10 are matched with those of the first nut fastening surface 8, and the second nut fastening surface and the first nut fastening surface can be sleeved and clamped with each other; a second snap spring ring groove 12 is formed in the middle of the second nut fastening surface 10; the second screw fastening surface 11 and the first screw fastening surface 5 are shaped and dimensioned to engage each other so that the retention collar 3 can be securely inserted or wrapped around the gripping portion 7 of the nut 2 without any play.
The anti-falling clamp spring 4 is a filter-ring-shaped elastic clamping piece; the ring filter-shaped elastic clamping piece is made of elastic materials and can be elastically hooped or loosened, and the average value of the inner diameter and the outer diameter of the anti-falling clamping spring 4 in a natural state is equal to the diameter of the nut fastening surface, namely the diameter of the first nut fastening surface 8 and the diameter of the second nut fastening surface 10.
The embodiment makes the retention collar 3 as an insert collar 14, the second nut fastening surface 10 on the insert collar 14 is arranged on the outer end surface of the inner ring wall of the retention collar 3, and the second screw fastening surface 11 is arranged on the inner end surface of the inner ring wall of the retention collar 3; accordingly, the first nut tightening surface 8 of the nut 2 is provided on the outer circumferential wall surface of the gripping part 7.
Then, the screw fastening surface is made into a mortise and tenon structure surface, namely the first screw fastening surface 5 is made into longitudinal grooves annularly distributed on the outer surface of the external thread of the screw 1, and the longitudinal grooves annularly distributed are called as screw locking grooves 17; in the embodiment, the screw locking grooves 17 are uniformly distributed in an annular shape; the second screw fastening surface 11 is made into longitudinal tenon strips annularly arranged on the inner wall of the inner end of the retention retainer ring 3, a plurality of annularly arranged longitudinal tenon strips are called screw tenon strips 18, and the screw tenon strips 18 are made into annularly and uniformly arranged in the embodiment; the screw tenon strip 18 and the screw locking groove 17 are mutually wedged, and the screw tenon strip 18 can be stably inserted into the screw locking groove 17.
Meanwhile, the nut fastening surface is made into a polygonal-prism-shaped straight structural surface 16, the first nut fastening surface 8 is made into a polygonal-prism-shaped straight structural surface 16, and in the embodiment, the first nut fastening surface 8 is made into a regular polygonal-prism-shaped straight structural surface, namely, the outer side of the cross section of the clamping part 7 of the nut 2 is a regular polygon, and the longitudinal direction of the outer wall of the clamping part 7 is a straight plane; the second nut fastening surface 10 is made into a polygonal-prism-shaped flat structure surface 16, which is made into a regular-polygonal-prism-shaped flat structure surface in the present embodiment, that is, the cross section of the inner surface of the outer end of the retention retainer ring 3 is a regular polygon, and the longitudinal direction of the inner wall of the retention retainer ring 3 is a flat plane.
In the embodiment, the second screw fastening surface 11 is formed as eight screw tenon strips 18, the second nut fastening surface 10 is formed as seventy straight planes, and one screw tenon strip 18 in the second screw fastening surface 11 is aligned with one straight plane on the second nut fastening surface 10; the aligned position is provided with an alignment mark 22; meanwhile, the first nut fastening surfaces 8 on the nut 2 are also annularly and uniformly distributed into seventeen straight planes, wherein one straight plane is aligned with one straight plane on the second nut fastening surface 10; the aligned position is provided with an alignment mark 22.
Just so done the utility model provides a supporting structure subassembly adopts the automatic chucking locking fastening components that takes off of tenon fourth of twelve earthly branches structure screw rod fastening surface and the straight structural plane of polygon prism of package formula rand promptly.
During the use, pass screw rod 1 by the fastener, screw up nut 2 on screw rod 1, and make the tight portion of spiral shell 6 support tightly by the fastener, then suit anticreep jump ring 4 in first jump ring annular 9, then insert the package with maintenance rand 3, when second nut fastening face 10 contact anticreep jump ring 4, anticreep jump ring 4 can be by elastic compression, make second nut fastening face 10 pass through smoothly, until first jump ring annular 9 and second jump ring annular 12 butt joint, make anticreep jump ring 4 resume natural state in the space that constitutes after first jump ring annular 9 and second jump ring annular 12 butt joint, anticreep jump ring 4 can be with first nut fastening face 8 and second nut fastening face 10 chucking each other this moment, make it unable pine take off, and then make first screw rod fastening face 5 and second screw rod fastening face 11 unable rotation, make this kind of fastening assembly unable pine take off on the whole.
Example 3.
As shown in fig. 3, an automatic clamping and anti-loosening fastening assembly using an enclosed and inserted retainer ring is manufactured, and comprises a screw rod 1, a nut 2, a retention retainer ring 3 and an anti-loosening clamp spring 4.
The screw rod 1 is provided with an external thread, and the external thread is provided with a first screw rod fastening surface 5.
The barrel of the nut 2 is divided into two parts, namely a screwing part 6 positioned at the barrel at the inner end and a clamping part 7 positioned at the barrel at the outer end, wherein the inner surface of the screwing part 6 is provided with internal threads which are matched with the external threads on the screw rod 1, so that the nut 2 and the screw rod 1 can be mutually screwed and fastened; the clamping part 7 is provided with a first nut fastening surface 8, and the middle part of the first nut fastening surface 8 is provided with a first clamp spring ring groove 9.
The retention retainer ring 3 is a cylindrical structure body, a second nut fastening surface 10 and a second screw fastening surface 11 are arranged on the cylindrical structure body, wherein the shape and the specification of the second nut fastening surface 10 are matched with those of the first nut fastening surface 8, and the second nut fastening surface and the first nut fastening surface can be sleeved and clamped with each other; a second snap spring ring groove 12 is formed in the middle of the second nut fastening surface 10; the second screw fastening surface 11 and the first screw fastening surface 5 are shaped and dimensioned to engage each other so that the retention collar 3 can be securely inserted or wrapped around the gripping portion 7 of the nut 2 without any play.
The anti-falling clamp spring 4 is a filter-ring-shaped elastic clamping piece; the ring filter-shaped elastic clamping piece is made of elastic materials and can be elastically hooped or loosened, and the average value of the inner diameter and the outer diameter of the anti-falling clamping spring 4 in a natural state is equal to the diameter of the nut fastening surface, namely the diameter of the first nut fastening surface 8 and the diameter of the second nut fastening surface 10.
The embodiment makes the retention collar 3 as an insert collar 14, the second nut fastening surface 10 on the insert collar 14 is arranged on the outer end surface of the inner ring wall of the retention collar 3, and the second screw fastening surface 11 is arranged on the inner end surface of the inner ring wall of the retention collar 3; accordingly, the first nut tightening surface 8 of the nut 2 is provided on the outer circumferential wall surface of the gripping part 7.
Then, the screw fastening surface is made into a polygonal-prism-shaped straight thread structure surface 15, namely, the first screw fastening surface 5 is made into a straight thread surface annularly distributed on the outer surface of the external thread of the screw 1, a plurality of straight thread surfaces annularly distributed are directly intersected or extend and intersect in a virtual shape to form the polygonal-prism-shaped straight thread structure surface 15, and then all the straight thread surfaces are uniformly distributed to form a regular polygonal-prism-shaped straight thread structure; the second screw fastening surface 11 is made into the inner wall of a polygonal-prism straight structure surface 16, and then made into the inner wall of a regular-polygonal-prism straight structure surface; namely, the inner side of the transverse section of the retention retainer ring 3 is polygonal, and further is made into a regular polygon, and the longitudinal surface of the polygonal inner wall of the retention retainer ring 3 is a flat plane.
Meanwhile, the nut fastening surface is made into a polygonal-prism-shaped straight structural surface 16, the first nut fastening surface 8 is made into a polygonal-prism-shaped straight structural surface 16, and in the embodiment, the first nut fastening surface 8 is made into a regular polygonal-prism-shaped straight structural surface, namely, the outer side of the cross section of the clamping part 7 of the nut 2 is a regular polygon, and the longitudinal direction of the outer wall of the clamping part 7 is a straight plane; the second nut fastening surface 10 is made into a polygonal-prism-shaped flat structure surface 16, which is made into a regular-polygonal-prism-shaped flat structure surface in the present embodiment, that is, the cross section of the inner surface of the outer end of the retention retainer ring 3 is a regular polygon, and the longitudinal direction of the inner wall of the retention retainer ring 3 is a flat plane.
Just so done the utility model provides a supporting structure subassembly adopts the automatic chucking locking fastening components that takes off of tenon fourth of twelve earthly branches structure screw rod fastening surface and the straight structural plane of polygon prism of package formula rand promptly.
During the use, pass screw rod 1 by the fastener, screw up nut 2 on screw rod 1, and make the tight portion of spiral shell 6 support tightly by the fastener, then suit anticreep jump ring 4 in first jump ring annular 9, then insert the package with maintenance rand 3, when second nut fastening face 10 contact anticreep jump ring 4, anticreep jump ring 4 can be by elastic compression, make second nut fastening face 10 pass through smoothly, until first jump ring annular 9 and second jump ring annular 12 butt joint, make anticreep jump ring 4 resume natural state in the space that constitutes after first jump ring annular 9 and second jump ring annular 12 butt joint, anticreep jump ring 4 can be with first nut fastening face 8 and second nut fastening face 10 chucking each other this moment, make it unable pine take off, and then make first screw rod fastening face 5 and second screw rod fastening face 11 unable rotation, make this kind of fastening assembly unable pine take off on the whole.
Claims (10)
1. An automatic clamping type anti-loosening fastening assembly comprises a screw rod, a nut, a retention retainer ring and an anti-loosening clamp spring;
the screw is provided with an external thread, and the external thread is provided with a first screw fastening surface;
the barrel of the nut is divided into two parts, namely a screwing part positioned at the barrel at the inner end and a clamping part positioned at the barrel at the outer end, wherein the inner surface of the screwing part is provided with internal threads which are matched with the external threads on the screw rod; a first nut fastening surface is arranged on the clamping part, and a first clamp spring ring groove is formed in the middle of the first nut fastening surface;
the fixing retainer ring is a cylindrical structure body, a second nut fastening surface and a second screw fastening surface are arranged on the cylindrical structure body, and the shape and the specification of the second nut fastening surface are matched with those of the first nut fastening surface; a second clamp spring ring groove is formed in the middle of the second nut fastening surface; the shape and the specification of the second screw fastening surface are matched with those of the first screw fastening surface;
the anti-falling clamp spring is a filter-shaped elastic clamping piece.
2. The self-clinching release-resistant fastener assembly of claim 1, wherein the retention collar is an inset collar, the second nut-fastening surface on the inset collar being disposed on an outer annular wall surface of the collar, the second screw-fastening surface being disposed on an inner annular wall surface of the collar; correspondingly, the first nut fastening surface on the nut is arranged on the inner annular wall surface of the clamping part.
3. The self-clinching release-resistant fastener assembly of claim 1, wherein the retention collar is an over-the-insert collar, the second nut fastening surface on the over-the-insert collar being disposed on an outer end surface of the inner annular wall of the collar, the second screw fastening surface being disposed on an inner end surface of the inner annular wall of the collar; accordingly, the first nut tightening surface on the nut is provided on the outer annular wall surface of the gripping portion.
4. The self-clinching anti-loosening fastening assembly as claimed in claim 2 or 3, wherein the screw fastening surface is a polygonal-prism-shaped flat thread structure surface, i.e. the first screw fastening surface is a flat thread surface annularly arranged on the outer surface of the screw external thread, a plurality of the annularly arranged flat thread surfaces are directly intersected or virtually extended and intersected to form a polygonal-prism-shaped flat surface external thread, and then the flat thread surfaces are uniformly arranged to form a regular polygonal-prism-shaped flat surface external thread; the second screw fastening surface is the inner wall of a polygonal-prism-shaped straight structural surface, and then the inner wall of the regular-polygonal-prism-shaped straight structural surface is manufactured.
5. The automatic clamping type loosening-preventing fastening assembly according to claim 2 or 3, wherein the screw fastening surface is a tenon-and-mortise structure surface, that is, the first screw fastening surface is a longitudinal groove annularly arranged on the outer surface of the external thread of the screw, and the plurality of annularly arranged longitudinal grooves are called screw locking grooves; further manufacturing screw locking grooves which are uniformly distributed in a ring shape; the second screw fastening surface is a longitudinal tenon strip annularly arranged on the inner wall of the retention retainer ring, and a plurality of annularly arranged longitudinal tenon strips are called screw tenon clamping strips so as to be made into annularly and uniformly arranged screw tenon clamping strips; the screw rod tenon clamping strip and the screw rod locking groove are mutually wedged.
6. The self-clinching release-resistant fastener assembly of claim 2 or 3, wherein the nut-fastening surface is a polygonal-prism flat structure surface, and the first nut-fastening surface is a polygonal-prism flat structure surface, which may be further made into a regular polygonal-prism flat structure surface; the second nut fastening surface is a polygonal-prism straight structure surface, so that a regular polygonal-prism straight structure surface can be manufactured; in one case, the inner side of the cross section of the clamping part of the nut is a regular polygon, the longitudinal direction of the inner wall of the clamping part is a straight plane, correspondingly, the cross section of the outer surface of the retention clamping ring is a regular polygon, and the longitudinal direction of the outer wall of the retention clamping ring is a straight plane; in another aspect, the outer side of the cross-section of the gripping portion of the nut is a regular polygon, the longitudinal direction of the outer wall of the gripping portion is a flat plane, and correspondingly, the cross-section of the inner surface of the retention collar is a regular polygon, and the longitudinal direction of the inner wall of the retention collar is a flat plane.
7. The self-clinching anti-loosening fastening assembly of claim 2 or 3, wherein the nut-fastening face is a face of mortise and tenon construction; the first nut fastening surface is a nut locking groove which is annularly arranged, and the second nut fastening surface is a nut tenon strip which is annularly arranged; the nut tenon clamping strip and the nut locking groove are mutually wedged; one of the situations is that the first nut fastening surface is a longitudinal groove annularly arranged on the inner surface of the nut clamping part, and a plurality of the annularly arranged longitudinal grooves are called as nut locking grooves and can be made into nut locking grooves which are annularly and uniformly arranged; correspondingly, the second nut fastening surface is a longitudinal tenon strip annularly arranged on the outer wall of the retention retainer ring, and the plurality of annularly arranged longitudinal tenon strips are called nut clamping tenon strips; thereby being made into nut tenon clamping strips which are uniformly distributed in a ring shape; the first nut fastening surface is a longitudinal groove annularly arranged on the outer surface of the nut clamping part, and a plurality of annularly arranged longitudinal grooves are called nut locking grooves and can be made into annularly and uniformly arranged nut locking grooves; correspondingly, the second nut fastening surface is a longitudinal tenon strip annularly arranged on the inner wall of the retention retainer ring, and the plurality of annularly arranged longitudinal tenon strips are called nut clamping tenon strips; so that the nut tenon strips can be made into nut tenon strips which are uniformly distributed in a ring shape.
8. The self-clinching anti-loosening fastening assembly of claim 2 or 3, wherein the nut-fastening face is a face of mortise and tenon construction; the first nut fastening surface is a nut tenon strip which is annularly arranged, and the second nut fastening surface is a nut locking groove which is annularly arranged; the nut tenon clamping strip and the nut locking groove are mutually wedged; in one case, the first nut fastening surface is a longitudinal tenon strip annularly arranged on the inner surface of the nut clamping part, and a plurality of annularly arranged longitudinal tenon strips are called nut tenon strips so as to be made into nut tenon strips uniformly arranged annularly; correspondingly, the second nut fastening surface is a longitudinal groove annularly arranged on the outer wall of the retention retainer ring, and the plurality of annularly arranged longitudinal grooves are called nut locking grooves; thereby being made into nut locking grooves which are uniformly distributed in a ring shape; the other situation is that the first nut fastening surface is a longitudinal tenon strip annularly arranged on the outer surface of the nut clamping part, and a plurality of longitudinal tenon strips annularly arranged are called nut clamping tenon strips, so that the nut clamping tenon strips annularly and uniformly arranged can be manufactured; correspondingly, the second nut fastening surface is a longitudinal groove annularly arranged on the inner wall of the retention retainer ring, and the plurality of annularly arranged longitudinal grooves are called nut locking grooves; thereby being made into nut locking grooves which are uniformly distributed in a ring shape.
9. The self-clinching release-resistant fastener assembly of claim 2 or claim 3, further including a rubber washer disposed between the retainer collar and the nut; and/or the depth of the first clamp spring ring groove and the second clamp spring ring groove is the same as the rod diameter of the anti-falling clamp spring; and/or the outer end of the retention retainer ring is provided with a closed cap top; and/or the top of the hat is also provided with a brim.
10. The self-clinching release-resistant fastener assembly of claim 9, wherein the second screw-fastening surfaces are n straight flat surfaces or screw-bar strips, and the second nut-fastening surfaces are m straight flat surfaces or nut-locking grooves or nut-bar strips, wherein n and m may be equal or different, but whether n and m are equal or not, wherein at least one of the straight flat surfaces of the second screw-fastening surfaces is aligned with one of the straight flat surfaces of the second nut-fastening surfaces; an alignment mark is arranged at the alignment position; correspondingly, the first nut fastening surfaces on the nuts are also annularly and uniformly distributed into m strips, wherein at least one of the m strips is aligned with a straight plane on the second nut fastening surface; the aligned position is provided with an alignment mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022723917.8U CN214007741U (en) | 2020-11-23 | 2020-11-23 | Automatic locking fastening components that takes off of chucking formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022723917.8U CN214007741U (en) | 2020-11-23 | 2020-11-23 | Automatic locking fastening components that takes off of chucking formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214007741U true CN214007741U (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022723917.8U Active CN214007741U (en) | 2020-11-23 | 2020-11-23 | Automatic locking fastening components that takes off of chucking formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214007741U (en) |
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2020
- 2020-11-23 CN CN202022723917.8U patent/CN214007741U/en active Active
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Effective date of registration: 20230831 Address after: No. 3001, Tianyu East Road, Weixian Economic Development Zone, Handan City, Hebei Province 056800 Patentee after: Hebei CRRC Luxing Anti-locking Technology Co.,Ltd. Address before: 409900 Chongqing Xiushan Tujia and Miao Autonomous County Industrial Park small and medium sized Enterprise Incubation Park with a warehouse next to Du Chuang Technology Co.,Ltd. Patentee before: Liu Qichao |