CN111473034A - Locknut structure and using method thereof - Google Patents
Locknut structure and using method thereof Download PDFInfo
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- CN111473034A CN111473034A CN202010304572.4A CN202010304572A CN111473034A CN 111473034 A CN111473034 A CN 111473034A CN 202010304572 A CN202010304572 A CN 202010304572A CN 111473034 A CN111473034 A CN 111473034A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001125 extrusion Methods 0.000 claims abstract description 73
- 125000003003 spiro group Chemical group 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 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
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
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Abstract
The invention provides a locknut structure and a using method thereof, and belongs to the field of mechanical accessories. The anti-loosening nut solves the problems that an existing anti-loosening nut is poor in universality, troublesome to operate and poor in error proofing. The anti-loosening nut structure comprises a hexagon nut with a threaded hole, wherein an anti-loosening groove is formed in the outer wall of the top end of the nut, an anti-loosening sleeve is sleeved on the anti-loosening groove, the outer wall of the anti-loosening sleeve is of a regular hexagon sleeve structure coaxial with the threaded hole, an outer clamping groove and an inner clamping groove are formed in the wall of the anti-loosening groove and the inner wall of the anti-loosening sleeve, the inner clamping groove and the outer clamping groove are rotatably connected through a clamping ring, and an anti-loosening plate is fixed on the inner wall; the coaxial extrusion groove that is equipped with of nut top inner wall is equipped with the extruded article between locking plate and the nut top, and the extruded article includes extrusion cover and stripper plate, and the cooperation of extrusion cover is inlayed in the extrusion groove, and the stripper plate passes through the screw thread spiro union along with locking cover inner wall outward, and the extrusion inslot is coaxial to be equipped with annular rubber antiskid circle, and antiskid circle is pressed between extrusion cover and extrusion groove tank bottom. The nut has the advantages of good structural universality, convenient operation and good error proofing.
Description
Technical Field
The invention belongs to the technical field of mechanical accessories, and relates to a locknut structure and a using method thereof.
Background
Bolt and nut spiro union are common fastening structure, by the wide application in mechanical equipment field, but the vibrations of equipment can lead to the nut not hard up on the bolt, lead to the nut to drop then, easily take place the incident, therefore this fastening structure has the defect that is not hard up easily.
The existing application number is 201910609425.5, which is a Chinese patent application named as 'a limit fastener and an assembling and using method thereof', wherein a rod wall of a screw is provided with a limit groove, an adjusting sleeve is arranged on a nut, a rotating mechanism is arranged between the adjusting sleeve and the nut, the adjusting sleeve is provided with a limit block matched with the limit groove, and the adjusting sleeve is rotated relative to the nut, so that the nut and the limit block are circumferentially and relatively fixed to achieve the effect of limiting and preventing looseness; however, it has the following problems:
1. the nut with the structure can only be matched with the bolt with the structure to form a limiting fastener, and the nut cannot be matched with the bolt with the traditional structure to be used, so that the universality is poor;
2. when the nut is rotated, the jaw needs to be aligned with the nut and operated, and when the adjusting sleeve is rotated, the jaw needs to be aligned with the adjusting sleeve and operated, so that the operation is troublesome;
3. and the outer wall of the adjusting sleeve and the outer wall of the nut have the same shape, and the adopted wrenching openings are the same, so that the misoperation is easy to occur, and the error proofing is poor.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a locknut structure with good universality, convenient operation and good error resistance and a use method thereof.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a locknut structure, its be used for with bolt cooperation spiro union, including the hexagon nut who is equipped with the screw hole, clockwise and anticlockwise are respectively for screwing and the unscrewing direction, its characterized in that: the outer wall of the top end of the nut is coaxially provided with a round sleeve-shaped anti-loosening groove, an anti-loosening sleeve is sleeved on the anti-loosening groove in a matched mode, the inner wall of the anti-loosening sleeve is of a round sleeve-shaped structure matched with the wall of the anti-loosening groove, the outer wall of the anti-loosening sleeve is of a regular hexagon sleeve-shaped structure coaxial with the threaded hole, the diameter of an external circle of the outer wall of the anti-loosening sleeve is not larger than the diameter of an internal circle of the outer wall of the nut, the wall of the anti-loosening groove and the inner wall of the anti-loosening sleeve are respectively and coaxially provided with an annular outer clamping groove and an inner clamping groove, the inner clamping groove and the outer clamping groove are aligned; the inner wall of the top end of the nut is coaxially provided with a regular polygon sleeve-shaped extrusion groove, an extrusion piece is arranged between the anti-loosening plate and the top end of the nut and comprises a sleeve-shaped extrusion sleeve and a circular plate-shaped extrusion plate, the inner edge of the circular plate-shaped extrusion plate is coaxially fixed with the outer wall of the top end of the extrusion sleeve, the outer wall of the extrusion sleeve is of a regular polygon sleeve-shaped structure, the extrusion sleeve is embedded in the extrusion groove in a matched mode, the inner wall of the extrusion sleeve is of a circular sleeve-shaped structure, the inner diameter of the extrusion sleeve is larger than the aperture of a threaded hole, the outer edge of the extrusion plate is movably screwed with the inner wall of the anti-loosening sleeve through threads;
when the anti-loosening sleeve is rotated clockwise relative to the nut, the anti-slipping ring is axially extruded by the extrusion sleeve, so that the anti-slipping ring radially expands, and the inner diameter of the anti-slipping ring is smaller than the aperture of the threaded hole; and when the anti-loosening sleeve rotates anticlockwise relative to the nut, the anti-skidding ring is axially loosened by the extrusion sleeve, so that the anti-skidding ring radially contracts, and the inner diameter of the anti-skidding ring is larger than the aperture of the threaded hole.
The nut structure can be matched with a traditional bolt for screw connection, and after the anti-loosening sleeve is rotated clockwise relative to the nut, the anti-loosening ring expands radially to clamp the bolt, so that an anti-loosening structure can be formed, the traditional bolt structure does not need to be modified, and the universality is good; after the nut is screwed at the large wrench head end of the double-end wrench in place, the anti-loosening sleeve is screwed at the small wrench head end, so that the double-end wrench can be quickly installed, and otherwise, after the anti-loosening sleeve is unscrewed at the small wrench head end in place, the nut is unscrewed at the large wrench head end, so that the double-end wrench can be quickly disassembled, so that the double-end wrench is convenient to operate; because the diameter of the circumcircle of the outer wall of the anti-loosening sleeve is not more than the diameter of the inscribed circle of the outer wall of the nut, the small wrench head end can only be sleeved on the anti-loosening sleeve in a matching manner for screwing the anti-loosening sleeve, and the large wrench head end can also slip on the anti-loosening sleeve even if being sleeved on the anti-loosening sleeve, so that the large wrench head end can only be used for screwing the nut, and the error proofing is good; and the anti-loosening sleeve rotating in the circumferential direction can only drive the extrusion sleeve to move axially, so that the anti-skidding ring is extruded axially by the extrusion sleeve, and the anti-skidding ring is prevented from being damaged due to circumferential rotation of the extrusion sleeve on the anti-skidding ring.
In the locknut structure, the cross section of the anti-slip ring is of a C-shaped structure, and the opening is positioned on one side of the axis of the reverse threaded hole.
After the fixing, the inner edge of the anti-skid ring can be moved further in the radial direction to completely clamp the bolt.
In the locknut structure, the outer edge of the anti-slip ring is fixed with the support ring, and the outer edge of the support ring is of a regular polygon structure matched with the wall of the extrusion groove.
Can make antiskid circle and nut circumference relatively fixed, after the antiskid circle presss from both sides tight bolt, make the nut need overcome the circumference resistance that antiskid circle and bolt formed and just can become flexible, consequently locking effect is better.
In the above-mentioned locknut structure, the support ring on be equipped with a plurality of bail, and a plurality of bail distribute along support ring circumference, and the bail nail is on anti-skidding circle to make support ring and anti-skidding circle relatively fixed.
Therefore, the support ring and the anti-skid ring can be stably connected.
In the locknut structure, the baffle is coaxially fixed on the outer wall of the bottom end of the anti-loosening sleeve, the outer edge of the baffle is of a regular hexagon structure, and when the anti-loosening sleeve rotates anticlockwise relative to the nut to enable the anti-loosening plate to be abutted against the extrusion plate, the outer edge of the baffle is aligned with the outer wall of the nut.
Therefore, the baffle and the anti-loosening sleeve can rotate simultaneously, and the influence on the nut in the process of screwing the anti-loosening sleeve by the small wrench head end is avoided.
In foretell locknut structure, the snap ring be the loop configuration of taking the breach, and the snap ring is equipped with annular inclined plane form spigot surface one along axial top terminal surface and outer edge crossing department, the locking cover inner wall bottom is equipped with annular inclined plane form spigot surface two, and the snap ring cover is in outer draw-in groove, and can move down the locking cover to block in the inner card groove through spigot surface one and spigot surface two cooperation.
Therefore, the assembly is convenient.
In the above-mentioned locknut structure, when the outer edge of the baffle aligns with the outer wall of the nut, the outer wall of the anti-loose sleeve is respectively arranged in parallel with the outer wall of the nut.
A use method for a locknut structure is characterized in that: including methods of tightening and loosening bolts,
the method for screwing the bolt comprises the following steps: penetrating a bolt through a connected piece, sleeving a nut on the bolt, and screwing the nut at the large spanner head end of the double-end spanner clockwise to a proper position; then, the small wrench head end of the double-end wrench is screwed up clockwise to form the anti-loosening sleeve, the anti-slip ring is axially extruded by the extrusion sleeve, the anti-slip ring is radially expanded, the inner diameter of the anti-slip ring is smaller than the aperture of the threaded hole, and the bolt is clamped on the inner edge of the anti-slip ring;
the method for unscrewing the bolt comprises the following steps: the anti-loosening sleeve is unscrewed in place counterclockwise at the small wrench head end of the double-end wrench, the anti-slip ring is loosened axially by the extrusion sleeve, the anti-slip ring is contracted radially, the inner diameter of the anti-slip ring is larger than the aperture of the threaded hole, and the bolt is separated from the inner edge of the anti-slip ring; and then loosening the nut anticlockwise at the large wrench head end of the double-end wrench, separating the nut from the bolt, and taking down the bolt from the connected piece.
Therefore, the operation is convenient and the error proofing is good.
Compared with the prior art, the invention has the following advantages:
1. the nut structure can be matched with a traditional bolt for screw connection, and after the anti-loosening sleeve is rotated clockwise relative to the nut, the anti-loosening ring expands radially to clamp the bolt, so that an anti-loosening structure can be formed, the traditional bolt structure does not need to be modified, and the universality is good;
2. after the nut is screwed at the large wrench head end of the double-end wrench in place, the anti-loosening sleeve is screwed at the small wrench head end, so that the double-end wrench can be quickly installed, and otherwise, after the anti-loosening sleeve is unscrewed at the small wrench head end in place, the nut is unscrewed at the large wrench head end, so that the double-end wrench can be quickly disassembled, so that the double-end wrench is convenient to operate;
3. because the diameter of the circumcircle of the outer wall of the anti-loosening sleeve is not more than the diameter of the inscribed circle of the outer wall of the nut, the small wrench head end can only be sleeved on the anti-loosening sleeve in a matching manner for screwing the anti-loosening sleeve, and the large wrench head end can also slip on the anti-loosening sleeve even if being sleeved on the anti-loosening sleeve, so that the large wrench head end can only be used for screwing the nut, and the error proofing is good;
4. and the anti-loosening sleeve rotating in the circumferential direction can only drive the extrusion sleeve to move axially, so that the anti-skidding ring is extruded axially by the extrusion sleeve, and the anti-skidding ring is prevented from being damaged due to circumferential rotation of the extrusion sleeve on the anti-skidding ring.
Drawings
Fig. 1 is a connection state diagram and a partial sectional view of the nut structure.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a view showing a state where the anti-loose sleeve of fig. 2 is tightened.
Fig. 4 is a partially enlarged view of fig. 3.
Fig. 5 is a top view of the present nut structure.
FIG. 6 is a schematic view of FIG. 5 with the anti-loosening sleeve and extrusion removed.
The dotted line with arrows in fig. 3 indicates the direction of movement of the respective members.
The dotted line in fig. 5 is a circumscribed circle of the outer wall of the anti-loosening sleeve.
In the figure, the position of the upper end of the main shaft,
1. a bolt;
2. a nut; 21. an anti-loosening groove; 22. an outer clamping groove; 23. extruding a groove;
3. an anti-loose sleeve; 31. an inner clamping groove; 32. an anti-loosening plate; 33. a baffle plate; 34. a second guide surface;
4. a snap ring; 41. a first guide surface;
5. an extrusion; 51. a pressing plate; 52. extruding a sleeve;
6. an anti-slip ring; 61. a support ring; 62. and (4) a staple.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in figures 1-6, the locknut structure of the invention is used for matching and screwing with a bolt 1, and comprises a hexagon nut 2 provided with a threaded hole, the clockwise direction and the anticlockwise direction of the nut 2 are respectively the screwing direction and the unscrewing direction, the outer wall of the top end of the nut 2 is coaxially provided with a round sleeve-shaped anti-loosening groove 21, the anti-loosening groove 21 is matched and sleeved with an anti-loosening sleeve 3, the inner wall of the anti-loosening sleeve 3 is a round sleeve-shaped structure matched with the groove wall of the anti-loosening groove 21, the outer wall of the anti-loosening sleeve 3 is a regular hexagon sleeve-shaped structure coaxial with the threaded hole, the diameter of the circumcircle of the outer wall of the anti-loosening sleeve 3 is not more than the diameter of the inscribed circle of the outer wall of the nut 2, the groove wall of the anti-loosening groove 21 and the inner wall of the anti-loosening sleeve 3 are respectively and coaxially provided with an annular outer clamping groove 22 and an inner clamping groove 31, the inner clamping groove 31 and the outer clamping groove 22 are aligned and rotatably connected through the annular clamping ring 4, an annular plate-shaped anti-loosening plate 32 is fixed on the inner wall of the top end of the anti-loosening sleeve 3, and the inner diameter of the anti-loosening plate 32 is larger than the aperture of the threaded hole; a regular polygon sleeve-shaped extrusion groove 23 is coaxially arranged on the inner wall of the top end of the nut 2, an extrusion piece 5 is arranged between the anti-loosening plate 32 and the top end of the nut 2, the extrusion piece 5 comprises a sleeve-shaped extrusion sleeve 52 and a circular plate-shaped extrusion plate 51, the inner edge of the circular plate-shaped extrusion plate is coaxially fixed with the outer wall of the top end of the extrusion sleeve 52, the outer wall of the extrusion sleeve 52 is of a regular polygon sleeve-shaped structure, the extrusion sleeve 52 is embedded in the extrusion groove 23 in a matched mode, the inner wall of the extrusion sleeve 52 is of a circular sleeve-shaped structure, the inner diameter of the extrusion sleeve 52 is larger than the aperture of a threaded hole, the outer edge of the extrusion plate 51 is movably screwed with the inner wall of the anti-loosening sleeve 3;
when the anti-loosening sleeve 3 is rotated clockwise relative to the nut 2, the extrusion sleeve 52 axially extrudes the anti-skidding ring 6, so that the anti-skidding ring 6 radially expands, and the inner diameter of the anti-skidding ring 6 is smaller than the aperture of the threaded hole; and when the anti-loosening sleeve 3 is rotated anticlockwise relative to the nut 2, the extrusion sleeve 52 axially loosens the anti-skidding ring 6, so that the anti-skidding ring 6 radially contracts, and the inner diameter of the anti-skidding ring 6 is larger than the aperture of the threaded hole.
Furthermore, the cross section of the anti-skid ring 6 is of a C-shaped structure, and the opening is positioned on one side of the axis of the reverse threaded hole. A support ring 61 is fixed on the outer edge of the anti-slip ring 6, and the outer edge of the support ring 61 is of a regular polygon structure matched with the groove wall of the extrusion groove 23. The support ring 61 is provided with a plurality of staples 62, and the plurality of staples 62 are distributed along the circumference of the support ring 61, and the staples 62 are nailed on the anti-skid ring 6, and fix the support ring 61 and the anti-skid ring 6 relatively. The baffle 33 is coaxially fixed on the outer wall of the bottom end of the anti-loosening sleeve 3, the outer edge of the baffle 33 is of a regular hexagon structure, and when the anti-loosening sleeve 3 rotates anticlockwise relative to the nut 2, the anti-loosening plate 32 abuts against the extrusion plate 51, and the outer edge of the baffle 33 is aligned with the outer wall of the nut 2. The snap ring 4 is of an annular structure with a notch, an annular inclined plane-shaped guide surface I41 is arranged at the intersection of the axial top end face and the outer edge of the snap ring 4, an annular inclined plane-shaped guide surface II 34 is arranged at the bottom end of the inner wall of the anti-loosening sleeve 3, the snap ring 4 is sleeved in the outer clamping groove 22 and can move down the anti-loosening sleeve 3 and be clamped in the inner clamping groove 31 through the matching of the guide surface I41 and the guide surface II 34. When the outer edge of the baffle 33 aligns with the outer wall of the nut 2, the outer wall of the anti-loosening sleeve 3 is parallel to the outer wall of the nut 2 respectively.
The nut structure can be matched with a traditional bolt 1 for screw connection, after the anti-loosening sleeve 3 is rotated clockwise relative to the nut 2, the anti-loosening ring 6 expands radially to clamp the bolt 1, and an anti-loosening structure can be formed, so that the structure of the traditional bolt 1 does not need to be modified, and the universality is good; after the nut 2 is screwed on the large wrench head end of the double-end wrench in place, the anti-loosening sleeve 3 is screwed on the small wrench head end, so that the double-end wrench can be quickly installed, and otherwise, after the anti-loosening sleeve 3 is unscrewed on the small wrench head end in place, the nut 2 is unscrewed on the large wrench head end, so that the double-end wrench can be quickly disassembled, so that the double-end wrench is convenient to operate; because the diameter of the circumscribed circle of the outer wall of the anti-loosening sleeve 3 is not larger than the diameter of the inscribed circle of the outer wall of the nut 2, the small wrench head end can only be sleeved on the anti-loosening sleeve 3 in a matched mode for screwing the anti-loosening sleeve 3, and the large wrench head end can also slip on the anti-loosening sleeve 3 even if sleeved on the anti-loosening sleeve 3, so that the large wrench head end can only be used for screwing the nut 2, and the mistake proofing performance is good; and the anti-loosening sleeve 3 can only drive the extrusion sleeve 52 to axially move in the circumferential direction, so that the extrusion sleeve 52 axially extrudes the anti-skid ring 6, and the extrusion sleeve 52 can be prevented from circumferentially rotating on the anti-skid ring 6, thereby damaging the anti-skid ring 6.
A using method for a locknut structure comprises a method of screwing with a bolt 1 and a method of unscrewing with the bolt 1,
the method for screwing the bolt 1 comprises the following steps: the bolt 1 penetrates through the connected piece, the nut 2 is sleeved on the bolt 1, and the nut 2 is screwed to the position by the large wrench head end of the double-end wrench clockwise; then, the small wrench head end of the double-end wrench is screwed up clockwise to the anti-loosening sleeve 3, the extrusion sleeve 52 axially extrudes the anti-skidding ring 6, the anti-skidding ring 6 is radially expanded, the inner diameter of the anti-skidding ring 6 is smaller than the aperture of the threaded hole, and the inner edge of the anti-skidding ring 6 clamps the bolt 1;
the method for unscrewing the bolt 1 comprises the following steps: the anti-loosening sleeve 3 is unscrewed to the position of the small wrench head end of the double-end wrench anticlockwise, the anti-skidding ring 6 is axially loosened by the extrusion sleeve 52, the anti-skidding ring 6 is radially contracted, the inner diameter of the anti-skidding ring 6 is larger than the aperture of the threaded hole, and the bolt 1 is separated from the inner edge of the anti-skidding ring 6; then, the nut 2 is unscrewed anticlockwise at the large wrench head end of the double-end wrench, the nut 2 is separated from the bolt 1, and the bolt 1 is taken down from the connected piece.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms bolt 1, nut 2, anti-loosening groove 21, outer clamping groove 22, pressing groove 23, anti-loosening sleeve 3, inner clamping groove 31, anti-loosening plate 32, baffle 33, second guide surface 34, snap ring 4, first guide surface 41, pressing piece 5, pressing plate 51, pressing sleeve 52, anti-slip ring 6, support ring 61, clamp 62, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (8)
1. The utility model provides a locknut structure, its be used for with bolt (1) cooperation spiro union, including hexagon nut (2) that is equipped with the screw hole, clockwise and anticlockwise are respectively for screwing and the loosening direction in nut (2), its characterized in that: the outer wall of the top end of the nut (2) is coaxially provided with a round sleeve-shaped anti-loosening groove (21), the anti-loosening groove (21) is sleeved with an anti-loosening sleeve (3) in a matched mode, the inner wall of the anti-loosening sleeve (3) is of a round sleeve-shaped structure matched with the groove wall of the anti-loosening groove (21), the outer wall of the anti-loosening sleeve (3) is of a regular hexagon sleeve-shaped structure coaxial with a threaded hole, the diameter of an external circle of the outer wall of the anti-loosening sleeve (3) is not larger than the diameter of an internal tangent circle of the outer wall of the nut (2), the groove wall of the anti-loosening groove (21) and the inner wall of the anti-loosening sleeve (3) are respectively and coaxially provided with an annular external clamping groove (22) and an internal clamping groove (31), the internal clamping groove (31) and the external clamping groove (22) are aligned and rotatably connected through an annular clamping ring (4; the nut (2) top end inner wall is coaxially provided with a regular polygon sleeve-shaped extrusion groove (23), an extrusion piece (5) is arranged between the anti-loosening plate (32) and the nut (2) top end, the extrusion piece (5) comprises a sleeve-shaped extrusion sleeve (52) and a circular plate-shaped extrusion plate (51) with an inner edge coaxially fixed with the outer wall of the extrusion sleeve (52) top end, the outer wall of the extrusion sleeve (52) is of a regular polygon sleeve-shaped structure, the extrusion sleeve (52) is embedded in the extrusion groove (23) in a matched mode, the inner wall of the extrusion sleeve (52) is of a circular sleeve-shaped structure, the inner diameter of the extrusion sleeve (52) is larger than the aperture of a threaded hole, the outer edge of the extrusion plate (51) is movably screwed with the inner wall of the anti-loosening sleeve (3) through threads, an annular rubber ring (6) is coaxially arranged in the extrusion groove (23), and the anti-skidding ring (6;
when the anti-loosening sleeve (3) is rotated clockwise relative to the nut (2), the extrusion sleeve (52) axially extrudes the anti-skidding ring (6) to enable the anti-skidding ring (6) to radially expand, and the inner diameter of the anti-skidding ring (6) is smaller than the aperture of the threaded hole; and when the anti-loosening sleeve (3) is rotated anticlockwise relative to the nut (2), the anti-skidding ring (6) is axially loosened by the extrusion sleeve (52), so that the anti-skidding ring (6) radially contracts, and the inner diameter of the anti-skidding ring (6) is larger than the aperture of the threaded hole.
2. The locknut structure of claim 1, wherein: the cross section of the anti-skid ring (6) is of a C-shaped structure, and the opening is positioned on one side of the axis of the reverse threaded hole.
3. A locknut structure according to claim 2, wherein: and a support ring (61) is fixed on the outer edge of the anti-slip ring (6), and the outer edge of the support ring (61) is of a regular polygon structure matched with the wall of the extrusion groove (23).
4. A locknut structure according to claim 3, wherein: the anti-skid device is characterized in that the support ring (61) is provided with a plurality of clamp nails (62), the clamp nails (62) are distributed along the circumferential direction of the support ring (61), the clamp nails (62) are nailed on the anti-skid ring (6), and the support ring (61) and the anti-skid ring (6) are relatively fixed.
5. The locknut structure of claim 4, wherein: the coaxial baffle (33) that is fixed with of locking cover (3) bottom outer wall, baffle (33) outer edge is regular hexagon structure, and when relative nut (2) anticlockwise rotation locking cover (3), make locking plate (32) and stripper plate (51) offset, baffle (33) outer edge align with nut (2) outer wall.
6. The locknut structure of claim 5, wherein: snap ring (4) be the loop configuration of taking the breach, and snap ring (4) are equipped with annular inclined plane form spigot surface one (41) along axial top terminal surface and outer crossing department along, anti-loosening sleeve (3) inner wall bottom is equipped with annular inclined plane form spigot surface two (34), and snap ring (4) cover is in outer draw-in groove (22), and can move down anti-loosening sleeve (3) to cooperate the card in interior draw-in groove (31) through spigot surface one (41) and spigot surface two (34).
7. The locknut structure of claim 6, wherein: when the outer edge of the baffle (33) is aligned with the outer wall of the nut (2), the outer wall of the anti-loosening sleeve (3) is respectively arranged in parallel with the outer wall of the nut (2).
8. A method of using the locknut structure of claim 7, wherein: comprises a method for screwing with the bolt (1) and a method for unscrewing with the bolt (1),
the method for screwing the bolt (1) comprises the following steps: the bolt (1) penetrates through the connected piece, the nut (2) is sleeved on the bolt (1), and the nut (2) is screwed in place by the large wrench head end of the double-end wrench clockwise; then, the anti-loosening sleeve (3) is screwed down clockwise at the small wrench head end of the double-end wrench, the anti-skidding ring (6) is axially extruded by the extrusion sleeve (52), the anti-skidding ring (6) is radially expanded, the inner diameter of the anti-skidding ring (6) is smaller than the aperture of the threaded hole, and the bolt (1) is clamped along the inner edge of the anti-skidding ring (6);
the method for unscrewing the bolt (1) comprises the following steps: the anti-loosening sleeve (3) is unscrewed in place counterclockwise at the small wrench head end of the double-end wrench, the anti-skidding ring (6) is loosened axially by the extrusion sleeve (52), the anti-skidding ring (6) is contracted radially, the inner diameter of the anti-skidding ring (6) is larger than the aperture of the threaded hole, and the bolt (1) is separated from the inner edge of the anti-skidding ring (6); and then, the nut (2) is unscrewed anticlockwise at the large wrench head end of the double-end wrench, the nut (2) is separated from the bolt (1), and the bolt (1) is taken down from the connected piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010304572.4A CN111473034A (en) | 2020-04-17 | 2020-04-17 | Locknut structure and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010304572.4A CN111473034A (en) | 2020-04-17 | 2020-04-17 | Locknut structure and using method thereof |
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| CN111473034A true CN111473034A (en) | 2020-07-31 |
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| CN202010304572.4A Withdrawn CN111473034A (en) | 2020-04-17 | 2020-04-17 | Locknut structure and using method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN111473034A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2594911A2 (en) * | 1986-02-27 | 1987-08-28 | Renault | Nut with integral elastic zone |
| EP0280057A1 (en) * | 1987-02-12 | 1988-08-31 | Ringfeder GmbH | Clamping arrangement design for tensioning and securing a screwed connection |
| CN102878182A (en) * | 2012-09-28 | 2013-01-16 | 三一重型装备有限公司 | Locknut |
| CN206539586U (en) * | 2017-01-22 | 2017-10-03 | 洛阳科博思新材料科技有限公司 | A kind of locking fastener |
| CN110195739A (en) * | 2019-07-22 | 2019-09-03 | 新昌县丽晶工业产品设计有限公司 | A kind of anti-backing type nut |
| CN110307238A (en) * | 2019-07-08 | 2019-10-08 | 温州远协电子科技有限公司 | A kind of limit fastener and its assembling and application method |
-
2020
- 2020-04-17 CN CN202010304572.4A patent/CN111473034A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2594911A2 (en) * | 1986-02-27 | 1987-08-28 | Renault | Nut with integral elastic zone |
| EP0280057A1 (en) * | 1987-02-12 | 1988-08-31 | Ringfeder GmbH | Clamping arrangement design for tensioning and securing a screwed connection |
| CN102878182A (en) * | 2012-09-28 | 2013-01-16 | 三一重型装备有限公司 | Locknut |
| CN206539586U (en) * | 2017-01-22 | 2017-10-03 | 洛阳科博思新材料科技有限公司 | A kind of locking fastener |
| CN110307238A (en) * | 2019-07-08 | 2019-10-08 | 温州远协电子科技有限公司 | A kind of limit fastener and its assembling and application method |
| CN110195739A (en) * | 2019-07-22 | 2019-09-03 | 新昌县丽晶工业产品设计有限公司 | A kind of anti-backing type nut |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200731 |
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| WW01 | Invention patent application withdrawn after publication |