CN112145537A - Self-locking bolt with anti-loosening function - Google Patents
Self-locking bolt with anti-loosening function Download PDFInfo
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- CN112145537A CN112145537A CN202011058836.9A CN202011058836A CN112145537A CN 112145537 A CN112145537 A CN 112145537A CN 202011058836 A CN202011058836 A CN 202011058836A CN 112145537 A CN112145537 A CN 112145537A
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- 238000001125 extrusion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
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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
- F16B39/36—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 with conical locking parts, which may be split, including use of separate rings co-operating therewith
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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
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
- F16B39/16—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts in which the screw-thread of the locknut differs from that of the nut
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
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- 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
- F16B39/284—Locking by means of elastic deformation
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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
- F16B39/34—Locking by deformable inserts or like parts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The application discloses self-locking bolt with locking function, it includes: the bolt comprises a bolt body, a sleeve, a limiting block, a fastening nut, a sleeve plate and a self-locking nut; the bolt body is movably sleeved with the inside of the sleeve, a limiting block is arranged at the joint of the sleeve and the bolt body, the fastening nut is in threaded connection with the reverse thread groove on the surface of the bolt body, the sleeve plate is positioned between the fastening nut and the self-locking nut, the sleeve plate is movably sleeved with the bolt body, and the self-locking nut is in threaded connection with the forward thread groove on the surface of the bolt body; the bolt body top has been seted up the spout, and the sleeve pipe bottom is equipped with or is connected with first type deformation piece, and the sleeve pipe top is equipped with or is connected with second type deformation piece, and the fastening nut surface is equipped with or is connected with first type latch, and the lagging bottom surface is equipped with or is connected with second type latch, and the lagging inner wall is equipped with or is connected with the embedding piece, lagging and a plurality of gag lever post fixed connection. The self-locking bolt with the anti-loosening function has the advantages of being stable in connection and having the self-locking function.
Description
Technical Field
The invention relates to a self-locking bolt, in particular to a self-locking bolt with an anti-loosening function, and belongs to the technical field of bolts.
Background
The bolt is a mechanical part, and the cylindrical threaded fastener of adapted nut, the fastener of a kind that comprises head and screw rod cylinder two parts that have the external screw thread promptly need with the nut cooperation for the part of fastening connection two areas that have the through-hole, this kind of connection form is called bolted connection, if unscrew the nut from the bolt, can make these two parts separate again, so bolted connection belongs to detachable connection, and the bolt divides according to the atress mode of connection: common and reamed holes, according to the shape of the head: hexagonal heads, round heads, square heads, countersunk heads, etc., of which hexagonal heads are the most commonly used, countersunk heads are generally used where the connection is required, countersunk heads are generally used where the surface is smooth and without protrusions after the connection is required, because countersunk heads can be screwed into the part, round heads can also be screwed into the part, and the screwing force of square heads can be greater, but the size is larger. In addition, in order to meet the requirement of locking after installation, the head part is provided with holes, and the rod part is provided with holes, so that the bolts can not be loosened when being vibrated.
The bolt is a mechanical part for connecting, and it cooperates with the nut for two parts that have the through-hole of fastening connection are detachable connecting fastener, and the bolt has good fastening nature as the connecting piece, when using for a long time, probably because of the part of connecting appears rocking and causes the bolt to take place the pine problem of taking place, causes the potential safety hazard easily, reduces bolted connection's fastening nature, still causes the bolt to appear not hard up the problem easily when adopting expansion bolts to connect. At present, no self-locking bolt with anti-loosening function exists.
Disclosure of Invention
A self-locking bolt with anti-loosening function, comprising: the bolt comprises a bolt body, a sleeve, a limiting block, a fastening nut, a sleeve plate and a self-locking nut; the bolt body is movably sleeved with the inside of a sleeve, a limiting block is arranged at the joint of the top of the sleeve and the bolt body, the fastening nut is in threaded connection with a reverse threaded groove on the surface of the bolt body, the sleeve plate is positioned between the fastening nut and the self-locking nut, the sleeve plate is movably sleeved with the surface of the bolt body, and the self-locking nut is in threaded connection with a forward threaded groove on the surface of the bolt body; the top of the bolt body is provided with a sliding chute, and the bottom of the bolt body is fixedly welded with the truncated cone; the bottom of the sleeve is provided with or connected with a first deformation block, the first deformation block is provided with a first type opening, the top of the sleeve is provided with or connected with a second type deformation block, the second type deformation block is provided with a second type opening, and the surface of the sleeve is movably sleeved with the gasket; the edge of the limiting block is provided with a notch, the limiting block is contacted with a fastening nut, and the surface of the fastening nut is provided with or connected with a first type of latch; the improved self-locking device is characterized in that a second type of latch is arranged on or connected with the bottom surface of the sleeve plate, an embedded block is arranged on or connected with the inner wall of the sleeve plate, the bottom surface of the sleeve plate is fixedly connected with a plurality of limiting rods, and the surface of the sleeve plate is in contact with the self-locking nut.
Further, the bolt body comprises the body of rod that both ends diameter is different, the great one end of bolt body diameter is equipped with reverse thread groove, the less one end of bolt body diameter is equipped with forward thread groove, reverse thread groove with forward thread groove cup joints with fastening nut and self-locking nut screw respectively.
Further, the diameter of the bolt body is smaller than the minimum diameter of the cone frustum, the surface of the cone frustum is in contact with a first type deformation block, and four first type openings are uniformly distributed in the first type deformation block.
Further, the bolt body is connected with the inside of the sleeve in a sliding mode, four second type openings are uniformly distributed in a second type deformation block at the top of the sleeve, the second type deformation block is in contact with a gasket of a circular ring-shaped structure, and the gasket is connected with the surface of the sleeve in a sliding mode.
Further, the stopper bottom is circular structure, the stopper top comprises the circular cone that is equipped with the side and is the arc structure, the stopper middle part is equipped with the round hole and cup joints with bolt body surface activity, stopper top diameter is less than the sleeve pipe internal diameter, stopper bottom diameter is greater than the sleeve pipe internal diameter, the stopper contact has second type deformation piece.
Further, fastening nut's internal diameter is greater than self-locking nut's internal diameter, fastening nut is located between the gag lever post, fastening nut is located between stopper and the lagging, fastening nut corresponds the distance between the corner and is less than the diameter of stopper, fastening nut with the stopper surface laminating is connected.
Furthermore, four limiting rods which are uniformly distributed are arranged at the bottom of the sleeve plate, the distance between the two symmetrical limiting rods is larger than the distance between the corresponding corners of the fastening nut, the four limiting rods are all inserted into the openings, and the end parts of the limiting rods extend into the second type of openings and are in contact with the gaskets.
Furthermore, four embedded blocks which are uniformly distributed are arranged on the inner wall of the sleeve plate, each embedded block is connected with the inside of the sliding groove in a sliding mode, and the sleeve plate is connected with the surface of the forward threaded groove formed in the bolt body in a sliding mode.
Furthermore, the first type of latch and the second type of latch are the same in shape, the first type of latch and the second type of latch are both circular ring-shaped structures and are symmetrical to each other, and the first type of latch and the second type of latch are mutually embedded and spliced.
Further, the self-locking nut is located the bolt body top, the self-locking nut is connected with the attachment of lagging surface, the lagging is the ring shape structure, the external diameter of lagging is greater than the distance between the fastening nut corresponding corner.
The application has the advantages that: the self-locking bolt with the anti-loosening function is stable in connection and has the self-locking function.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 is a schematic structural view of a self-locking bolt having an anti-loosening function according to an embodiment of the present application;
FIG. 2 is a schematic internal cross-sectional view of the embodiment of FIG. 1 from a first perspective;
FIG. 3 is a schematic view of the overall structure of the embodiment of FIG. 1 from a first perspective;
FIG. 4 is a schematic bottom view of the sleeve plate of the embodiment of FIG. 2;
FIG. 5 is a schematic top view of the sleeve plate of the embodiment of FIG. 2;
FIG. 6 is a second perspective structural view of the stop block shown in FIG. 1;
fig. 7 is a partially enlarged schematic view of a portion a shown in fig. 2.
The meaning of the reference symbols in the figures:
self-locking bolt 100, bolt body 101, forward thread groove 1011, reverse thread groove 1012, spout 1013, circular truncated cone 1014, sleeve pipe 102, first type of deformation piece 1021, first type of opening 1022, second type of deformation piece 1023, second type of opening 1024, gasket 1025, stopper 103, opening 1031, fastening nut 104, first type of latch 1041, strap 105, second type of latch 1051, embedding piece 1052, gag lever post 1053, self-locking nut 106.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but 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 application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 7, a self-locking bolt 100 having a locking function includes: the bolt comprises a bolt body 101, a sleeve 102, a limiting block 103, a fastening nut 104, a sleeve plate 105 and a self-locking nut 106.
Wherein, the bolt body 101 is movably sleeved with the inside of the sleeve 102, the joint of the top of the sleeve 102 and the bolt body 101 is provided with a limit block 103, the limit block 103 is used for extruding the second deformation block 1023 to deform so as to be attached to the surface of a connected component, so as to realize fastening during connection, the fastening nut 104 is threadedly coupled with the reverse thread groove 1012 of the surface of the bolt body 101, the race plate 105 is positioned between the fastening nut 104 and the self-locking nut 106, for the movement of the strap 105 to push the stopper rod 1053 to perform the stopper 103 and the stopper of the socket 102, the relative positions of sleeve 102 and bolt body 101 are further defined to prevent rotation thereof, the sleeve plate 105 is movably sleeved on the surface of the bolt body 101, and the self-locking nut 106 is in threaded connection with the forward thread groove 1011 on the surface of the bolt body 101, so as to push the sleeve plate 105 to move to realize locking of the self-locking bolt 100.
The top of the bolt body 101 is provided with a chute 1013 for the embedded block 1052 to slide in the chute 1013 to realize the stable movement of the strap 105, and the bottom of the bolt body 101 is fixedly welded with the truncated cone 1014 for generating extrusion and realizing the deformation of the first type deformation block 1021 through the truncated cone 1014; the bottom of the sleeve 102 is provided with or connected with a first-type deformation block 1021, the first-type deformation block 1021 is provided with a first-type opening 1022 for fixing a part where the first-type deformation block 1021 is deformed to realize connection, the top of the sleeve 102 is provided with or connected with a second-type deformation block 1023, the second-type deformation block 1023 is provided with a second-type opening 1024, the surface of the sleeve 102 is movably sleeved with a gasket 1025, and two sides of the part which is connected through the first-type deformation block 1021 and the second-type deformation block 1023 are fixed at the same time; a notch 1031 is formed in the edge of the limiting block 103, the limiting block 103 is in contact with a fastening nut 104, and a first type of latch 1041 is arranged on or connected to the surface of the fastening nut 104; the bottom surface of the sleeve plate 105 is provided with or connected with a second type of latch 1051 for realizing the embedding between the first type of latch 1041 and the second type of latch 1051, realizing the limit between the sleeve plate 105 and the fastening nut 104, and matching the limit of an embedded block 1052 inside the sleeve plate 105 and a chute 1013 to realize the self-locking of the fastening nut 104, the inner wall of the sleeve plate 105 is provided with or connected with the embedded block 1052, the bottom surface of the sleeve plate 105 is fixedly connected with a plurality of limit rods 1053, and the surface of the sleeve plate 105 is contacted with the self-locking nut 106 for pushing the sleeve plate 105 to stably move.
As preferred scheme, bolt body 101 comprises the body of rod that both ends diameter is different, the great one end of bolt body 101 diameter is equipped with reverse thread groove 1012, the less one end of bolt body 101 diameter is equipped with forward thread groove 1011, reverse thread groove 1012 with forward thread groove 1011 cup joints with fastening nut 104 and self-locking nut 106 screw thread respectively for realize fastening nut 104 and the connection of self-locking nut 106, conveniently carry out the fast assembly of self-locking bolt 100, be provided with forward thread groove 1011 and reverse thread groove 1012 and realize fastening nut 104 spacing and improve sleeve 102, first type of deformation piece 1021 and the fastening nature of second type of deformation piece 1023.
As a specific scheme, the diameter of the bolt body 101 is smaller than the minimum diameter of the truncated cone 1014, the first type deformation block 1021 is in contact with the surface of the truncated cone 1014, four first type openings 1022 are uniformly distributed on the first type deformation block 1021, and the first type deformation block 1021 is deformed through the truncated cone 1014 to lock the connecting part.
Adopt such scheme, bolt body 101 and the inside sliding connection of sleeve pipe 102, the second type of shape change piece 1023 evenly distributed at sleeve pipe 102 top has four second type openings 1024, second type of shape change piece 1023 contact has the gasket 1025 of circle annular structure, gasket 1025 and sleeve pipe 102 surface sliding connection for the deformation of second type of shape change piece 1023 to realize the fastening of adapting unit both sides with the cooperation of first type of shape change piece 1021, be favorable to improving the fastness when connecting.
As preferred scheme, stopper 103 bottom is circular structure, the stopper 103 top comprises the circular cone that is equipped with the side for the arc structure, stopper 103 middle part is equipped with the round hole and cup joints with bolt body 101 surface activity, stopper 103 top diameter is less than sleeve pipe 102 internal diameter, stopper 103 bottom diameter is greater than sleeve pipe 102 internal diameter, stopper 103 contact has second type shape deformation piece 1023, realizes the extrusion deformation of second type shape deformation piece 1023 through stopper 103, and stopper 103 top can imbed the inside effective fixed of realizing sleeve pipe 102 of sleeve pipe 102.
As a specific scheme, the inner diameter of the fastening nut 104 is greater than the inner diameter of the self-locking nut 106, the fastening nut 104 is located between the limit rods 1053, the fastening nut 104 is located between the limit block 103 and the sleeve plate 105, the distance between the corresponding corners of the fastening nut 104 is smaller than the diameter of the limit block 103, the fastening nut 104 is attached to the surface of the limit block 103, the fastening nut 104 is conveniently connected with the reverse thread groove 1012 in a matched manner, and the movement of the limit block 103 is realized through the connection between the fastening nut 104 and the bolt body 101.
As a specific scheme, four evenly distributed limiting rods 1053 are arranged at the bottom of the sleeve plate 105, the distance between two symmetrical limiting rods 1053 is greater than the distance between the corresponding corners of the fastening nut 104, the four limiting rods 1053 are all inserted into the openings 1031, the end portions of the limiting rods 1053 extend into the second-type openings 1024 and are in contact with gaskets 1025, and the limiting rods 1053 are clamped with the openings 1031 at the edges of the limiting blocks 103 to limit the limiting blocks 103.
By adopting the scheme, the inner wall of the sleeve plate 105 is provided with four embedded blocks 1052 which are uniformly distributed, each embedded block 1052 is in sliding connection with the inside of the sliding groove 1013, the sleeve plate 105 is in sliding connection with the surface of the positive thread groove 1011 formed on the bolt body 101, so as to realize the stable movement of the sleeve plate 105, and the limit rod 1053 is pushed to move by the sleeve plate 105.
As a specific scheme, the first-type latch 1041 and the second-type latch 1051 have the same shape, the first-type latch 1041 and the second-type latch 1051 are both circular ring-shaped structures and are symmetrical to each other, and the first-type latch 1041 and the second-type latch 1051 are embedded and spliced with each other, so that the first-type latch 1041 and the second-type latch 1051 are engaged with each other, the self-locking of the fastening nut 104 is realized, and the problem that the fastening nut 104 is loosened due to long-time use is avoided.
As an expansion scheme, the self-locking nut 106 is located at the top of the bolt body 101, the self-locking nut 106 is attached to the surface of the sleeve plate 105, the sleeve plate 105 is of a circular ring structure, the outer diameter of the sleeve plate 105 is larger than the distance between the corresponding corners of the fastening nut 104, the sleeve plate 105 is pushed to move, and the sleeve plate 105 drives the limiting rod 1053 to move to the edge of the limiting block 103 so as to limit the limiting block 103.
Adopt the scheme as introduced above, adopt first type shape change piece 1021 and second type shape change piece 1023 to realize the both sides of the part that self-locking bolt 100 connects and lock simultaneously, stability when cooperation stopper 103 and fastening nut 104 effectively improve the connection improves the fastening nature that self-locking bolt 100 connects, improves its life and takes place not hard up problem in order to avoid long-time the use.
And, realize the connection of self-locking bolt 100 through fastening nut 104 and fix, the cooperation first type latch 1041 and the second type latch 1051 can effectively realize fastening nut 104's fixed, avoid appearing fastening nut 104 not hard up problem after connecting, realize fastening nut 104 through the cooperation of spout 1013 and embedding piece 1052 and effectively fix, adopt gag lever post 1053 to realize spacing of stopper 103 and sleeve pipe 102, gag lever post 1053 compresses tightly the fastening nature when gasket 1025 can improve self-locking bolt 100 and connect, guarantee connection quality.
According to the technical scheme, compared with the prior art, double-sided locking when self-locking bolt 100 is connected is realized through adopting first type deformation piece 1021 and second type deformation piece 1023 in this application, the stability of sleeve 102 and adapting unit department is improved, the locking of fastening nut 104 can be realized through adoption lagging 105, and fastening nut 104 connection stability can be further improved through self-locking nut 106, the problem that loosening occurs in fastening nut 104 can be prevented when in use, and fastening nut 104 compresses tightly stopper 103 all the time and can realize the fastening of self-locking bolt 100 and adapting unit.
The foregoing is illustrative of the present application and is not to be construed as limiting thereof, as numerous modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a from lock bolt with locking function which characterized in that:
the self-locking bolt with anti-loosening function comprises: the bolt comprises a bolt body, a sleeve, a limiting block, a fastening nut, a sleeve plate and a self-locking nut;
the bolt body is movably sleeved with the inside of a sleeve, a limiting block is arranged at the joint of the top of the sleeve and the bolt body, the fastening nut is in threaded connection with a reverse threaded groove on the surface of the bolt body, the sleeve plate is positioned between the fastening nut and the self-locking nut, the sleeve plate is movably sleeved with the surface of the bolt body, and the self-locking nut is in threaded connection with a forward threaded groove on the surface of the bolt body;
the top of the bolt body is provided with a sliding chute, and the bottom of the bolt body is fixedly welded with the truncated cone; the bottom of the sleeve is provided with or connected with a first deformation block, the first deformation block is provided with a first type opening, the top of the sleeve is provided with or connected with a second type deformation block, the second type deformation block is provided with a second type opening, and the surface of the sleeve is movably sleeved with the gasket; the edge of the limiting block is provided with a notch, the limiting block is contacted with a fastening nut, and the surface of the fastening nut is provided with or connected with a first type of latch; the improved self-locking device is characterized in that a second type of latch is arranged on or connected with the bottom surface of the sleeve plate, an embedded block is arranged on or connected with the inner wall of the sleeve plate, the bottom surface of the sleeve plate is fixedly connected with a plurality of limiting rods, and the surface of the sleeve plate is in contact with the self-locking nut.
2. The self-locking bolt with anti-loosening function according to claim 1, characterized in that:
the bolt body comprises the body of rod that both ends diameter is different, the great one end of bolt body diameter is equipped with reverse thread groove, the less one end of bolt body diameter is equipped with forward thread groove, reverse thread groove with forward thread groove cup joints with fastening nut and self-locking nut screw respectively.
3. The self-locking bolt with anti-loosening function according to claim 1, characterized in that:
the diameter of the bolt body is smaller than the minimum diameter of the cone frustum, the surface of the cone frustum is in contact with a first type deformation block, and four first type openings are uniformly distributed in the first type deformation block.
4. The self-locking bolt with anti-loosening function according to claim 1, characterized in that:
the bolt body is connected with the inside of the sleeve in a sliding mode, four second-class openings are uniformly distributed in a second-class deformation block at the top of the sleeve, the second-class deformation block is in contact with a gasket of a circular ring-shaped structure, and the gasket is connected with the surface of the sleeve in a sliding mode.
5. The self-locking bolt with anti-loosening function according to claim 1, characterized in that:
the stopper bottom is circular structure, the stopper top comprises the circular cone that is equipped with the side for the arc structure, the stopper middle part is equipped with the round hole and cup joints with bolt body surface activity, stopper top diameter is less than the sleeve pipe internal diameter, stopper bottom diameter is greater than the sleeve pipe internal diameter, the stopper contacts there is second type deformation piece.
6. The self-locking bolt with anti-loosening function according to claim 1, characterized in that:
the internal diameter of fastening nut is greater than self-locking nut's internal diameter, fastening nut is located between the gag lever post, fastening nut is located between stopper and the lagging, fastening nut corresponds the distance between the corner and is less than the diameter of stopper, fastening nut with the stopper surface laminating is connected.
7. The self-locking bolt with anti-loosening function according to claim 1, characterized in that:
four evenly distributed limiting rods are arranged at the bottom of the sleeve plate, the distance between the two symmetrical limiting rods is larger than the distance between the corresponding corners of the fastening nut, the limiting rods are all inserted into the openings, and the end portions of the limiting rods extend into the second type openings and are in contact with the gaskets.
8. The self-locking bolt with anti-loosening function according to claim 1, characterized in that:
the inner wall of the sleeve plate is provided with four embedded blocks which are uniformly distributed, each embedded block is connected with the inside of the sliding groove in a sliding mode, and the sleeve plate is connected with the surface of the forward threaded groove formed in the bolt body in a sliding mode.
9. The self-locking bolt with anti-loosening function according to claim 1, characterized in that:
the first type of latch and the second type of latch are the same in shape, the first type of latch and the second type of latch are both in circular ring structures and are mutually symmetrical, and the first type of latch and the second type of latch are mutually embedded and spliced.
10. The self-locking bolt with anti-loosening function according to claim 1, characterized in that:
the self-locking nut is located the bolt body top, the self-locking nut is connected with the attachment of lagging surface, the lagging is the ring shape structure, the external diameter of lagging is greater than the distance between the fastening nut corresponds the corner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011058836.9A CN112145537A (en) | 2020-09-30 | 2020-09-30 | Self-locking bolt with anti-loosening function |
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| CN202011058836.9A CN112145537A (en) | 2020-09-30 | 2020-09-30 | Self-locking bolt with anti-loosening function |
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| CN112145537A true CN112145537A (en) | 2020-12-29 |
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| CN202011058836.9A Pending CN112145537A (en) | 2020-09-30 | 2020-09-30 | Self-locking bolt with anti-loosening function |
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