The anti-loose anti-theft screw assembly
Technical field
The utility model is about a kind of anti-loose anti-theft screw assembly, especially the particular design that refers to a kind of nut element that is used for anti-loose anti-theft and packing ring, bolt part and packing ring, packing ring, reverse operation after screw assembly is screwed togather, can form the concentrated contact of dwindling area and compress, and can increase the fastening strength that packing ring is snapped at workpiece surface downwards.
Background technique
The locking external member of tradition is to pass workpiece with a bolt, and be tightened in bolt thread portion clamping work pieces with two nuts and prevent to become flexible, or screw in workpiece again after adding a spring washer with bolt, it is applied on the workpiece of high speed vibration, easily slide, cause bolt or nut to produce rotation and get loose because of workpiece vibrations cause slope of thread.
For this reason, at present a kind of anti-loose anti-theft screw assembly is being arranged on the market, can overcome the locking external member problem of above-mentioned tradition, it forms structure, can cooperate referring to Figure 12 and shown in Figure 13, it has a nut 50, one bolt 60 and two packing rings 70, wherein, on nut 50 and bolt 60 head downsides and the packing ring 70 top opposing sides wedge shape inclined-plane 51 is set respectively, 61 and continuous inclined-plane 71, and the interlock inclined-plane that continues and is set in packing ring 70 bottoms, the leading edge in arbitrary interlock inclined-plane and the most last edge in the interlock inclined-plane that continues form a prevention face with height, by this, and pass packing ring 70 and pass workpiece and hold packing ring 70 and nut 50 to screw togather when locking with other when bolt 60, can utilize the interlock inclined-plane distal edge of packing ring 70 bottoms to be butted on workpiece surface, reach the anti-loose anti-theft effect.
Above-mentioned anti-loose anti-theft screw assembly, it utilizes the effect on formed continuous interlock inclined-plane, packing ring 70 bottoms, make bolt 60 and nut 50 screw togather a time-out, can interlock inclined-plane distal edge be butted on workpiece surface, and because the block face height of the difference of height on the set wedge shape inclined-plane in nut 50 and bolt 60 bottoms, greater than nut 50, the thread pitch of bolt 60, so after screw assembly screws togather, if when suffering that intentionally the personage reverses bolt 60 or nut 50, wedge shape inclined- plane 51,61 can push back packing ring 70 downwards, make the interlock inclined-plane distal edge of packing ring 70 bottoms can press on workpiece surface, yet, because wedge shape inclined- plane 51,61 form parallel contact with the continuous surface on inclined-plane 71, cause the larger area contact, the strength that pushes back is downwards on average disperseed, so pushing back strength, it is difficult to promote, and because the factor in the design can cause wedge shape inclined- plane 51,61 with continuous inclined-plane 71 to push back the spacing that contacts excessive, and, cause screw assembly loosening easily because the workpiece vibrations cause continuous bump.
The model utility content
The utility model purpose of design is, provide a kind of " the anti-loose anti-theft screw assembly ", its packing ring bottom is provided with the interlock inclined-plane that continues and, and on nut and bolt head downside and packing ring top opposing side, wedge shape inclined-plane and continuous inclined-plane are set respectively, inclination continues on each wedge shape inclined-plane, and each wedge shape inclined-plane joining place forms the block face with high low head, inclination continues on each set continuous inclined-plane of packing ring end face, and each continuous inclined-plane joining place forms has the bearing surface of high low head, and each continuous inclined-plane is by the outer most edge inclined angle that tilts inwardly again.
By this design, make the reverse operation of the utility model after screw assembly screws togather, can form the concentrated contact of dwindling area compresses, and can increase the strength that packing ring is snapped at workpiece surface downwards, and the arc protuberance that continuous helical orphan degree is set on the continuous inclined-plane of packing ring, or to increase the bearing surface height of continuous inclined-plane joining place, all can effectively shorten the spacing that the wedge shape inclined-plane contacts with continuous inclined-plane, lower workpiece and shake caused knock-on effect, make the stable fastening workpiece of screw assembly energy.
For reaching above-mentioned purpose and effect, the utility model " the anti-loose anti-theft screw assembly " nut element comprise:
One nut, it has a screw, and several wedge shape inclined-planes are set in the nut bottom surface, and each wedge shape inclined-plane joins continuously, and each wedge shape inclined-plane joining place forms the block face with high low head;
One packing ring, one perforation is set in packing ring, the packing ring end face is provided with several continuous inclined-planes, each continuous inclined-plane joins continuously, and each continuous inclined-plane joining place forms has the bearing surface of high low head, and each continuous inclined-plane is by the outer most edge inclined angle that tilts inwardly again, and the packing ring bottom is provided with the interlock inclined-plane that continues and, and the leading edge in arbitrary interlock inclined-plane and the most last edge in the interlock inclined-plane that continues form a prevention face with height.
And belong to a kind of broad sense inventive concept with the utility model " the anti-loose anti-theft screw assembly " bolt part comprise:
One bolt, it has an axostylus axostyle, and the axostylus axostyle surface is provided with screw thread, and axostylus axostyle one end forms head, and the head bottom surface is provided with several wedge shape inclined-planes, and each wedge shape inclined-plane joins continuously, and each wedge shape inclined-plane joining place forms the block face with high low head;
One packing ring, one perforation is set in packing ring, the bolt axostylus axostyle is located in the packing ring perforation, the packing ring end face is provided with several continuous inclined-planes, each continuous inclined-plane joins continuously, and each continuous inclined-plane joining place forms and have the bearing surface of high low head, and each continuous inclined-plane is by the outer most edge inclined angle that tilts inwardly again, the packing ring bottom is provided with the interlock inclined-plane continue and, and the leading edge in arbitrary interlock inclined-plane and the most last edge in the interlock inclined-plane that continues form a prevention face with height.
And belong to a kind of broad sense inventive concept with the utility model " the anti-loose anti-theft screw assembly " packing ring, one perforation is set in this packing ring, the bolt axostylus axostyle is located in the packing ring perforation, the packing ring end face is provided with several continuous inclined-planes, each continuous inclined-plane joins continuously, and each continuous inclined-plane joining place forms has the bearing surface of high low head, and each continuous inclined-plane is by the outer most edge inclined angle that tilts inwardly again, the packing ring bottom is provided with the interlock inclined-plane continue and, and the leading edge in arbitrary interlock inclined-plane and the most last edge in the interlock inclined-plane that continues form a prevention face with height.
The utility model has solved workpiece vibrations and has caused continuous bump, causes the loosening problem of screw assembly, makes the fastening workpiece that screw assembly can be more stable.
The utility model design feature is:
1. the combination of nut and packing ring, bolt and packing ring, can make the wedge shape inclined-plane be resisted against continuous inclined-plane, and block face push against in bearing surface the high low head engagement that utilizes the wedge tooth to form, become the drag that reverse mechanical force and relative wedge tooth peak point of contact surpass pitch, reach the effect of not getting loose.
2. the continuous inclined-plane on packing ring top is by the outer most edge inclined angle that tilts inwardly, the contact position area of the reverse operation after screw assembly screws togather is dwindled, make pressure can concentrate contact to compress, and can increase the strength that packing ring is snapped at workpiece surface downwards, reach more firm sealed antitheft effect.
3. on the continuous inclined-plane of packing ring, the arc protuberance is set, or to increase the bearing surface height of continuous inclined-plane joining place, can effectively shorten the spacing that the wedge shape inclined-plane contacts with continuous inclined-plane, lower workpiece and shake caused knock-on effect, and can guarantee screw due working life and stable locking locking effect.
Description of drawings
Fig. 1: the utility model nut element look up exploded view;
Fig. 2: another pattern nut element of the utility model look up exploded view;
Fig. 3: the top exploded view of another pattern nut element of the utility model;
Fig. 4: the utility model bolt part look up exploded view;
Fig. 5: another pattern bolt part of the utility model look up exploded view;
Fig. 6: the top exploded view of another pattern bolt part of the utility model;
Fig. 7: another type bolt part of the utility model passes two workpiece and is screwed into the assembled sectional view of nut element;
Fig. 8: the utility model forms the three-dimensional appearance schematic representation of arc convex surface at the outer rim corner place, continuous inclined-plane on packing ring top;
Fig. 9: the utility model forms an arc convex surface on the packing ring top and relative position schematic representation before reversing with the wedge shape inclined-plane;
Figure 10: the utility model forms an arc convex surface on the packing ring top and contact position schematic representation during with wedge shape inclined-plane reverse effect;
Figure 11: the utility model increases for the bearing surface height on the packing ring top;
Figure 12: the wedge shape inclined-plane relative, continuous inclined-plane, packing ring top of screw assembly commonly used, the relative position schematic representation before nut or bolt reverse effect with nut or bolt;
Figure 13: the wedge shape inclined-plane relative, continuous inclined-plane, packing ring top of screw assembly commonly used, the contact position schematic representation when nut or bolt reverse effect with nut or bolt.
[primary clustering symbol description]
(10) nut (101) screw
(11) disc (111) breach
(12) wedge shape inclined-plane (121) block face
(20) packing ring (21) breach
(22) the continuous inclined-plane of perforation (23)
(231) bearing surface (232) base
(233) inclined side (233A) inclined side
(24) interlock inclined-plane (25) prevention face
(30) bolt (31) axostylus axostyle
(32) screw thread (33) head
(34) disc (341) breach
(35) wedge shape inclined-plane (351) block face
(40) workpiece (41) workpiece
(50) nut (51) wedge shape inclined-plane
(60) bolt (61) wedge shape inclined-plane
(70) the continuous inclined-plane of packing ring (71)
(θ) inclined angle (h) highly
(O) the first displacement center of circle, the center of circle (O ')
(O ") the second displacement center of circle
Embodiment
Cooperation is referring to Fig. 1, Fig. 2, shown in Figure 3, and it is the utility model " the anti-loose anti-theft screw assembly " nut element comprise:
One nut 10, it has a screw 101, and nut 10 bottom surfaces are provided with several wedge shape inclined-planes 12, and each wedge shape inclined-plane 12 joins continuously, and each wedge shape inclined-plane 12 joining place forms the block face 121 with high low head;
One packing ring 20, one perforation 22 is set in packing ring 20, packing ring 20 end faces are provided with several continuous inclined-planes 23, each continuous inclined-plane 23 joins continuously, and each continuous inclined-plane 23 joining place forms has the bearing surface 231 of high low head, and each continuous inclined-plane 23 is by the outer most edge inclined angle θ that tilts inwardly again, and packing ring 20 bottoms are provided with the interlock inclined-plane 24 that continues and, and the leading edge in arbitrary interlock inclined-plane 24 and the interlock inclined-plane 24 the most last edge that continue form a prevention face 25 with height.
As Fig. 2, shown in Figure 3, its nut 10 has beyond the above-mentioned citation form, more forms a disc that expands outwardly 11 at nut 10 root edges, and wedge shape inclined-plane 12 promptly is arranged on disc 11 bottom surfaces.
The continuous inclined-plane 23 on above-mentioned packing ring 20 tops can form relatively with set wedge shape inclined-plane, nut 10 discs 11 bottom surfaces 12, and when nut 10 rotates, can push against bearing surfaces 231 by block face 121, and packing ring 20 can be driven to rotate simultaneously.
Several breach 111 is set on the disc 11 of above-mentioned nut 10, and several relative breach 21 is set on packing ring 20, and claw that can special tool(s) is inserted in the breach 111,21, enables rotating screw cap 10 and packing ring 20 simultaneously, is unclamped and the nut element of locking and bolt part can reverse.
Each continuous inclined-plane 23, above-mentioned packing ring 20 tops is by tilt the inwardly again form of an inclined angle θ of outer most edge, can cooperate shown referring to Fig. 3, the formed bearing surface of continuous inclined-plane 23 joining places of this packing ring 20 231 bases 232 are to be level, and the imaginary line that this base 232 extends internally can meet at the O place, the center of circle at packing ring 20 centers, and bearing surface 231 tops form inclined sides 233 with 23 terminal jointing places, continuous inclined-plane, base 232 and inclined side 233 inside intersections formation inclined angle θ, and the imaginary line that extends internally again of inclined side 233 and the packing ring 20 central shafts first displacement center of circle O ' that meets at center of circle O downside.
Cooperation is referring to Fig. 4, Fig. 5, shown in Figure 6, and it belongs to a kind of broad sense inventive concept with the utility model " the anti-loose anti-theft screw assembly " bolt part comprise:
One bolt 30, it has an axostylus axostyle 31, and axostylus axostyle 31 surfaces are provided with screw thread 32, axostylus axostyle 31 1 ends form head 33, head 33 bottom surfaces are provided with several wedge shape inclined-planes 35, and each wedge shape inclined-plane 35 joins continuously, and each wedge shape inclined-plane 35 joining place forms the block face 351 with high low head;
One packing ring 20, one perforation 22 is set in packing ring 20, packing ring 20 end faces are provided with several continuous inclined-planes 23, each continuous inclined-plane 23 joins continuously, and each continuous inclined-plane 23 joining place forms has the bearing surface 231 of high low head, and each continuous inclined-plane 23 is by the outer most edge inclined angle θ that tilts inwardly again, and packing ring 20 bottoms are provided with the interlock inclined-plane 24 that continues and, and the leading edge in arbitrary interlock inclined-plane 24 and the interlock inclined-plane 24 the most last edge that continue form a prevention face 25 with height.
As Fig. 5, shown in Figure 6, its head 33 has beyond the above-mentioned citation form, more forms a disc that expands outwardly 34 at head 33 root edges, and described wedge shape inclined-plane 35 promptly is arranged on disc 34 bottom surfaces.
Above-mentioned packing ring 20 perforation 22 are set on the axostylus axostyle 31, can make the continuous inclined-plane 23 on packing ring 20 tops form relative with set wedge shape inclined-plane, bolt 30 discs 34 bottom surfaces 35, and when bolt 30 rotations, can push against bearing surfaces 231 by block face 351, and packing ring 20 can be driven to rotate simultaneously.
Above-mentioned bolt 30 discs 34 peripheries are provided with several breach 341, and several corresponding breach 21 are set in packing ring 20 peripheries, and claw that can special tool(s) inserts in the breach 341,21, enables rotating bolt 30 and packing ring 20 simultaneously, is unclamped and the nut element of locking and bolt part can reverse.
The utility model applied in any combination, can cooperate referring to Fig. 3, Fig. 6, shown in Figure 7, pass the workpiece 40 of two desire combination lockings with the axostylus axostyle 31 of bolt part, 41 perforation, and being screwed in the screw 101 of nut element in addition spiral shell with the set screw threads 32 in axostylus axostyle 31 surface establishes fastening, and since the set continuous inclined-plane 23 of packing ring 20 end faces by the inclined angle θ that tilts inwardly again of outer most edge place, so, after screw assembly screws togather, if when having the inclination personage's another mistake commentaries on classics nut 10 or bolt 30, nut 10, the wedge shape inclined-plane 12 of bolt 30,35 with the contact position on packing ring 20 continuous inclined-planes 23, be concentrated in continuous inclined-plane 23 adjacent end and outer rim place, so it can reduce area of contact, and the dwindling of area of contact, to the pressure of contact position be increased, the strength that packing ring 20 is pushed back downwards becomes big, therefore, the utility model design, for the reverse operation that screws togather after fastening, can increase the downward interlock strength of packing ring 20, what make that packing ring 20 bottoms can be more deep is snapped at workpiece 40,41 surfaces, and can reach better antitheft effect.
Cooperation is referring to Fig. 8, Fig. 9, shown in Figure 10, wherein, the 23 outer rim corner places, continuous inclined-plane that Fig. 8 is presented at the utility model packing ring 20 tops form the arc convex surface 234 of a continuous helical orphan degree, and after screw assembly is sealed, if have the inclination the personage will reverse dismounting for nut 10 or bolt 30 time, nut 10 before then it reverses, the wedge shape inclined-plane 12 of bolt 30,35 with the relative position on the continuous inclined-plane 23 of packing ring 20, be as shown in Figure 7, and for nut 10, after bolt 30 reverses, nut 10, the wedge shape inclined-plane 12 of bolt 30,35 after a bit of spacing of displacement, it is downward to push back packing ring 20, make the working surface that is snapped at that packing ring 20 bottoms can be more deep, and the shortening of displacement interval, then can lower workpiece shakes caused knock-on effect, with the fastening sealed workpiece of guaranteeing that screw assembly can be more firm.
Cooperation is referring to shown in Figure 11, the effort that the utility model is done for the contactinterval that shortens reverse, more can increase the bearing surface 231 height h of continuous inclined-plane 23 1 sides on packing ring 20 tops, to increase the inside inclined angle of continuous inclined-plane 23 outer most edge, make to move on the original inclined side 233 and increase that the intilted imaginary line of formed inclined side 233A can meet at the second displacement center of circle O with packing ring 20 center lines after the bearing surface 231 height h "; and change nut 10 simultaneously; the wedge shape inclined-plane 12 that bolt 30 is relative with it; block face 121 of 35 1 sides; 351 highly; make the fastening reverse after sealed of screw assembly, can contact in advance, and can reach the minimizing spacing, and lower the purpose of workpiece knock-on effect that vibrations cause.