CN113251059A - Double-gasket anti-loosening nut with tenon gasket and mortise gasket and bolt - Google Patents
Double-gasket anti-loosening nut with tenon gasket and mortise gasket and bolt Download PDFInfo
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- CN113251059A CN113251059A CN202110603717.5A CN202110603717A CN113251059A CN 113251059 A CN113251059 A CN 113251059A CN 202110603717 A CN202110603717 A CN 202110603717A CN 113251059 A CN113251059 A CN 113251059A
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- 241001270131 Agaricus moelleri Species 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
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- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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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
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
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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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Abstract
The invention discloses a double-gasket anti-loosening nut with a tenon gasket and a mortise gasket, which comprises: fastening nuts, tenon gaskets, mortise gaskets and plain gaskets; the inner side of the fastening nut is provided with threads, the bottom of the fastening nut is provided with a fastening nut half-mortise, the cross sections of the bulge and the recess of the fastening nut half-mortise are in the shape of an isosceles right triangle, and the bevel edge of the bulge is attached to the lower plane of the fastening nut; the upper part of the mortise gasket is provided with a half mortise of the mortise gasket, the bulge and the recess of the half mortise of the mortise gasket are isosceles right triangles, and the bottom of the mortise gasket is provided with a flat gasket; the tenon gasket comprises an upper concave-convex structure and a lower concave-convex structure, wherein the upper concave-convex structure is matched with the half mortise of the fastening nut, and the lower concave-convex structure is matched with the half mortise of the mortise gasket. The invention also provides a double-gasket anti-loosening bolt. The fastening nut of the invention forms a plurality of mortise and tenon structures, thereby effectively avoiding the nut from loosening; the operation and the use are convenient.
Description
Technical Field
The invention relates to the technical field of power system equipment installation, in particular to a double-gasket anti-loosening nut with a tenon gasket and a mortise gasket and a bolt, which are particularly applied to electric equipment with a power system transformer, a reactor, a generator and a motor which can vibrate in the running process and parts with nuts loosened and fallen off due to the swing of high-altitude hardware fittings of a power system under natural conditions.
Background
Electrical equipment such as a main transformer, a high (low) voltage reactor, a station transformer, a generator, a motor and the like installed and used in a transformer substation (power plant) can generate vibration during operation; the transformer substation or the high-voltage and ultra (special) high-voltage power transmission and transformation overhead hardware swings under natural conditions, for example, the swings caused by wind blowing, and wind blowing above a certain level can cause the power transmission line and the related overhead connection hardware to swing back and forth, so that bolts and nuts at fastening positions are loosened; in rail transit, the bolt and the nut are important railway accessories, and the bolt and the nut which are arranged on a railway track directly bear severe vibration generated by rolling stock and loads thereof.
In order to solve the problem that the bolt and the nut are loosened when the electrical equipment runs in the existing power system, a common method is that a same nut is arranged on a fastening nut, namely two same nuts are screwed on the same bolt, and the loosening torque generated by the first nut is counteracted by the tightening torque of the second nut, so that the bolt is not loosened under the vibration condition. Two same nuts are generally installed on a high-altitude hardware fitting of a transformer substation (power plant); in order to reduce various aspects of influences caused by wind power, vibration dampers are arranged at two ends of the power transmission line with each span. The problem of loosening of bolts and nuts in other technical fields is approximately the same, and other effective anti-loosening measures are adopted in important occasions.
Under the existing anti-loosening measures, bolts and nuts in various vibrating electrical equipment, high-altitude hardware fastening parts and line connection parts of an electric power system and other fields are often loosened and even fall off, so that the manpower operation and maintenance cost and the property expenditure are increased, and equipment damage and personal accidents are caused in serious cases.
Disclosure of Invention
The invention aims to solve the technical problem that in order to overcome the defects in the prior art, the invention provides the double-gasket anti-loosening nut with the tenon gasket and the mortise gasket and the bolt.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the utility model provides a take locking nut that moves of two gaskets of tenon gasket and mortise gasket, includes:
fastening nuts, tenon gaskets, mortise gaskets and plain gaskets;
the inner side of the fastening nut is provided with threads, the bottom of the fastening nut is provided with a fastening nut half-mortise, the cross sections of the bulge and the recess of the fastening nut half-mortise are in the shape of an isosceles right triangle, and the bevel edge of the bulge isosceles right triangle is attached to the lower plane of the fastening nut;
the upper part of the mortise gasket is provided with a half mortise of the mortise gasket, the bulge and the recess of the half mortise of the mortise gasket are isosceles right triangles, and the bottom of the mortise gasket is provided with a flat gasket;
the tenon gasket comprises an upper concave-convex structure and a lower concave-convex structure, wherein the upper concave-convex structure is matched with the half mortise of the fastening nut, and the lower concave-convex structure is matched with the half mortise of the mortise gasket; go up concave-convex structure and be isosceles right triangle, wherein go up concave-convex structure's isosceles right triangle's hypotenuse and concave-convex structure's isosceles right triangle's hypotenuse laminating, the tenon cross-section of tenon gasket is the square.
The invention adopts the further technical scheme that the area of a cross section isosceles right triangle of a bulge of the half-mortise of the fastening nut from a position far away from the circle center to a position close to the circle center is gradually reduced; the long sides of the concave isosceles right triangle of the half mortise of the fastening nut are attached to the bottom plane, each concave part forms a half mortise, and each mortise points to the circle center.
The further technical scheme of the invention is that the area of each isosceles right triangle from the position far away from the center of circle to the position close to the center of circle of the protrusions of the upper concave-convex structure and the lower concave-convex structure is gradually reduced; the convex parts of the upper concave-convex structure and the lower concave-convex structure are respectively of a half tenon structure, the two half tenon structures of the convex parts of the upper concave-convex structure and the lower concave-convex structure form a complete square tenon, and the section of the square tenon is square; each tenon points to the circle center, and the section area is smaller when the tenon is closer to the circle center.
The invention adopts the further technical scheme that the area of each isosceles right triangle from the position far away from the circle center to the position close to the circle center is gradually reduced by the protrusions of the half-mortise of the mortise gasket; the long edges of the concave isosceles right triangle of the half mortise of the mortise gasket are attached to the top plane, each concave forms a half mortise, and each mortise points to the circle center; the bottom of the mortise is provided with staggered anti-slip lines.
The further technical scheme of the invention is that the thread turning direction of the fastening nut is right turning direction, the external shape of the fastening nut is a hexagonal nut, and the external diameter and height ratio of the fastening nut is 2: 0.94; the screw pitch of the fastening nut is consistent with that of the bolt, and the inner diameter of the fastening nut is matched with that of the screw.
The tenon gasket is annular in shape, and the ratio of the diameter of an excircle to the height is 2: 0.2; the diameter of the inner hollow round hole is matched with the screw rod.
According to a further technical scheme, the mortise washer is circular, and the ratio of the diameter of an excircle to the height of the mortise washer is 2: 0.23; the diameter of the inner hollow round hole is matched with the screw rod.
The invention also provides a double-gasket anti-loosening bolt which is used in cooperation with the double-gasket anti-loosening nut with the tenon gasket and the mortise gasket and a bolt, wherein the bolt comprises a head part and a screw rod, the head part is a hexagonal head, and the height-to-diameter ratio of the head part is 0.7: 2; the screw rod is a cylinder with external threads; the major diameter of the screw thread is the same as the thread pitch; the tail end structure of the screw thread at the upper part of the screw rod is a flat-top structure.
The screw thread is rotated in the right-handed direction, the profile of the thread tooth on the section along the axis of the screw is in an equilateral triangle shape, and the ratio of the thread pitch to the height of the tenon gasket is 1: 2.
The invention has the beneficial effects that:
according to the invention, the nut anti-loosening function is realized by utilizing the tenon-and-mortise structure of the simple element, and after the used nut is installed, the tenon gasket in the tenon-and-mortise structure firmly locks the nut to prevent the nut from loosening from the bolt; during the dismantlement, only use the instrument to dismantle tenon gasket, fastening nut half mortise, half mortise of mortise gasket square can be dismantled, directly improved reliability and security that vibration electrical equipment, high altitude gold utensil or transmission line nut are connected, ensured equipment safety and personal safety, practiced thrift a large amount of financial resources and materials in fortune dimension maintenance work link. The device has simple and reliable structure, convenient operation and use, convenient production and reliable performance.
Drawings
FIG. 1 is a structural view of a double-gasket anti-loosening nut with a tenon gasket and a mortise gasket, which is provided by the invention;
FIG. 2 is a plan view of a double-washer anti-loosening nut with tenon and mortise washers according to the present invention;
FIG. 3 is a structural diagram of a double-gasket anti-loose bolt provided by the invention;
FIG. 4 is an enlarged view of the threads shown in FIG. 3;
FIG. 5a is a perspective view of the fastening nut of the present invention;
FIG. 5b is another perspective view of FIG. 5 a;
FIG. 6 is a view of the tenon shim according to the present invention;
FIG. 7a is a perspective view of the mortise washer according to the present invention;
FIG. 7b is a bottom structural view of the mortise washer according to the present invention;
fig. 7c is another perspective view of the mortise washer according to the present invention.
Description of reference numerals:
1-bolt, 2-fastening nut, 3-fastening nut half-mortise, 4-flat washer, 5-part to be fastened a, 6-part to be fastened B, 7-tenon washer, 8-mortise washer, 9-bolt hexagon, 10-screw thread, 11-tenon washer square tenon, 12-mortise washer half-mortise, 13-anti-slip pattern.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings and examples:
as shown in fig. 1 to 4, the invention discloses a double-gasket anti-loosening nut with a tenon gasket and a mortise gasket and a bolt, which have reasonable, precise and reliable structures; the mortise and tenon joint structure effect that fastening nut 2, tenon gasket 7, mortise gasket 8 are constituteed can effectively prevent that the nut is not hard up down, directly solves the not hard up roll-off problem of nut from the root. In the invention, the lower part of a fastening nut 2 is provided with a circle of fastening nut half-mortise 3 with the cross section of an isosceles right triangle; the tenon gasket 7 is an annular gasket formed by a plurality of tenons, and the section of each tenon is square; the upper part of the mortise gasket 8 is also a circle of mortise gasket half-mortise 12 with the cross section of an isosceles right triangle, and the lower part is provided with anti-skid grains 13; the fastening nut half mortise 3 and the mortise gasket half mortise 12 can be combined into a complete mortise, and each tenon on the tenon gasket 7 is matched with each mortise; after the fastening nut 2 is fastened, a plurality of mortise and tenon structures are formed, so that the nut can be effectively prevented from loosening; the anti-skid lines 13 on the lower bottom surface of the mortise gasket play a role of anti-skid;
the inner side of the fastening nut 2 is provided with threads, the bottom of the fastening nut is provided with a circle of fastening nut half-mortise 3 with a concave-convex structure, and the sections of the concave part and the convex part are all in the shape of an isosceles right triangle; the bottom edge of the isosceles right triangle is attached to the lower plane of the fastening nut; all the depressions point to the circle center and uniformly surround the bottom of the fastening nut to form a circle;
the tenon gasket 7 comprises an upper concave-convex structure and a lower concave-convex structure, wherein the upper concave-convex structure is matched with the fastening nut half mortise 3, and the lower concave-convex structure is matched with the mortise gasket half mortise 12; the upper concave-convex structure and the lower concave-convex structure are isosceles right triangles, wherein the bevel edge of the isosceles right triangle of the upper concave-convex structure is attached to the bevel edge of the isosceles right triangle of the lower concave-convex structure, and the tenon section of the tenon gasket is square; the tenon gasket 7 is an annular gasket formed by square tenons;
the cross sections of the grooves or the bulges on the upper parts of the mortise gaskets 8 are also in the shape of an isosceles right triangle; the bottom of the tenon gasket 7 is contacted and matched with the concave-convex surface at the lower part of the tenon gasket, the bottom of the tenon gasket is contacted with the plane of a connected piece or the flat gasket 4, and the anti-skid lines 13 staggered at the bottom play a role of skid resistance.
In some preferred embodiments, as shown in fig. 5a and 5 b: the bottom structure of the fastening nut 2 is a fastening nut half-mortise 3 with a concave-convex structure, the cross section of the convex or concave part is in the shape of an isosceles right triangle, and the area of each isosceles right triangle is gradually reduced from the position far away from the circle center to the position close to the circle center; the long edge of the isosceles right triangle of each concave groove is attached to the bottom plane, each concave groove forms a half mortise, and each mortise points to the circle center. This embodiment specifically discloses 2 half mortise concrete structures of fastening nut, and the mortise structure that forms through half mortise of fastening nut makes the realization of the locking looseness of nut more reliable.
In some preferred embodiments, as shown in FIG. 6: the tenon gasket 7 is a gasket with a concave-convex structure on both sides; the sections of the parts protruding from the upper surface and the lower surface are all in the shape of isosceles right triangles, and the area of each isosceles right triangle gradually decreases from the position far away from the circle center to the position close to the circle center; the long sides of the isosceles right triangles of each convex structure are mutually attached, the convex parts at the upper and lower surfaces form a half tenon structure, and the upper and lower half tenon structures form a complete square tenon; the cross section of the square tenon is square; each tenon points to the circle center, and the section area is smaller when the tenon is closer to the circle center. This embodiment specifically discloses 7 concrete structures of tenon gasket, through the tenon structure of tenon gasket 7, the ingenious tenon fourth of the twelve earthly branches structure that utilizes for the nut locking function reliable more that moves.
In some preferred embodiments, as shown in fig. 7a, 7b, 7 c: the upper part of the mortise gasket 8 is a mortise gasket half-mortise with a concave-convex structure, the cross section of the convex or concave part is in the shape of an isosceles right triangle, and the area of each isosceles right triangle is gradually reduced from the position far away from the circle center to the position close to the circle center; the long edge of an isosceles right triangle of each concave groove is attached to the top plane, each groove forms a half mortise, and each mortise points to the circle center; the bottom is the crisscross anti-skidding line, can effectively strengthen the frictional force of contact surface, has stronger anti-skidding ability. The embodiment specifically discloses a specific structure of the mortise gasket 8, and the realization of the looseness prevention of the nut is more reliable through the mortise structure formed by half-mortise of the mortise gasket; the anti-slip function of the mortise washer 8 makes the anti-loose function more reliable.
In some preferred embodiments, the whole fastening nut 2 is similar to a common nut, the thread screwing direction is a common right-handed direction, the external shape of the fastening nut 2 is a hexagonal nut, the maximum width is 2d (d is a relative size according to the proportion drawing method), and the height is 0.94d (including the height of the half-mortise 3 part of the fastening nut); the screw pitch of the nut is consistent with that of the screw, and the diameter of the nut is matched with that of the screw 1. The embodiment specifically discloses the specific size of fastening nut 2, and reasonable size makes this embodiment more reliable.
In some preferred embodiments, the tenon gasket 7 is circular in shape, the maximum width is 2d, and the height is 0.2 d; the diameter of the inner hollow round hole is matched with the screw rod. The embodiment specifically discloses the concrete size of tenon gasket 7, and reasonable size makes this embodiment more reliable.
In some preferred embodiments, the mortise washer 8 is circular, the maximum width is 2d, and the height is 0.23 d; the diameter of the inner hollow round hole is matched with the screw rod. This embodiment specifically discloses the concrete size of mortise gasket 8, and reasonable size makes this embodiment more reliable.
In some preferred embodiments, the screw 1 is threaded in the direction of the right hand, the profile of the thread profile in section along the axis of the screw is in the shape of an equilateral triangle, the pitch m being less than half the height of the tenon's shim 7, i.e. 0.1d (tenon's shim height of 0.2 d). This embodiment specifically discloses 1 thread pitch m of screw rod, and there are two aspects reasons in pitch m is less than half of tenon gasket 7 height in this embodiment: firstly, each tenon of the tenon gasket 7 plays a tenon role in the tenon-and-mortise structure, and the principle of the tenon-and-mortise structure is as shown in a tenon 12 in a figure 2; and secondly, half of the height of the tenon gasket 7, namely the height of 0.1d is far larger than the pitch m, when the fastening nut 2 tends to loosen, each tenon of the tenon gasket 7 is equivalent to a wedge, a lifting force is applied upwards to the fastening nut 2, the relative loosening tendency can be restrained, the loosening prevention effect is achieved, and the embodiment is more reliable due to the reasonable size.
In some preferred embodiments, the bolt comprises two parts, namely a bolt hexagonal head 9 and a screw 1, wherein the head is a hexagonal head, the height is 0.7d, and the maximum width is 2 d; the screw rod 1 is a cylinder with external threads; the length of the screw of the bolt 1 can be properly changed according to the requirement of the installation part, and the bolt is used in the safe use standard according to the actual production on site; the major diameter of the screw thread 10 is d; the tail end structure of the screw thread at the upper part of the screw rod is a flat-top structure. The embodiment specifically discloses the overall situation of the bolt size.
The invention discloses a double-gasket anti-loosening nut with a tenon gasket and a mortise gasket and a bolt.A strong bolt is placed on a part A5 to be fastened and a part B6 to be fastened when the nut is used, and a flat gasket 4, the mortise gasket 8, a tenon gasket 7 and a fastening nut 2 are sequentially screwed into the bolt 1 from the bottom of the bolt; screwing down the fastening nut 2 from the upper part of the bolt 1 from top to bottom by using a tool until the lower part of the fastening nut 2 is in contact with the tenon gasket 7 without being pressed tightly; the positions of the mortise gasket 8, the tenon gasket 7 and the fastening nut 2 are respectively adjusted manually, so that a square tenon 11 of the tenon gasket at the lower part of the tenon gasket 7 is clamped into a half mortise 12 of the mortise gasket at the upper part of the mortise gasket 8; the square tenon 18 of the tenon gasket at the upper part of the tenon gasket 7 is clamped into the half mortise 3 of the fastening nut at the lower part of the fastening nut 2; and then the fastening nut 2 is screwed by a tool. After the fastening nut 2 is screwed, the mortise gasket 8, the tenon gasket 7 and the corresponding structure of the fastening nut 2 form a mortise structure, the mortise of the mortise structure is each mortise formed by combining the mortise gasket half-mortise 12 and the fastening nut half-mortise 3, and the tenon is each tenon gasket square tenon 11 of the tenon gasket 7; the upper side of the tenon-and-mortise structure is provided with a fastening nut 2, and the internal thread of the fastening nut 2 and the external thread of the bolt 1 generate a force for preventing the fastening nut 2 from sliding relatively after the fastening nut 2 is locked; the mortise gasket 8 is arranged on the lower side of the mortise structure, and downward pressure after the fastening nut 2 is locked can also enable the anti-skid threads on the lower side of the mortise gasket 8 to generate force for preventing relative sliding; each square tenon 11 of the tenon gasket 7 is clamped into each square mortise; therefore, the fastening nut 2, the mortise gasket 8 and the tenon gasket 7 form a reliable mortise and tenon structure, and the fastening nut 2 is firmly kept after being fastened and cannot loosen. Meanwhile, as the half height (namely the height 0.1d) of the tenon gasket 7 is greater than the screw pitch m, even if the fastening nut 2 has a loosening trend, the tenon gasket 7 is equivalent to a wedge, and a lifting force is exerted upwards on the fastening nut 2, the relative loosening trend can be restrained, and the anti-loosening effect is achieved; the mortise and tenon structure and the wedge function simultaneously play a role, and are safe and reliable.
The above-mentioned embodiments mainly describe a whole process of installing a double-washer anti-loosening nut with a tenon washer and a mortise washer and a bolt, and detailed descriptions are provided for the specific structure, installation method and function of each main element when the fastening nut is installed, and how the fastening nut forms a mortise and tenon structure, how the fastening nut functions as a wedge, and how the anti-loosening is realized. Similarly, when the fastening nut is removed, the reverse operation is performed according to the embodiment, and the fastening nut and other accessory elements are removed.
The invention can be widely applied to electric equipment which can generate vibration in operation such as a power system transformer, a reactor, a generator, a motor and the like, comprises places where nuts are loosened and fall off due to the fact that high-altitude hardware fittings of the power system swing under natural conditions, and implementation technical fields such as rail transit, automobile industry, ship industry, mechanical building, casting technology, mining metallurgy and the like, and has wide application range.
While the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and various changes, which relate to the related art known to those skilled in the art and fall within the scope of the present invention, can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (9)
1. The utility model provides a take locking nut that moves of two gaskets of tenon gasket and mortise gasket which characterized in that includes:
fastening nuts, tenon gaskets, mortise gaskets and plain gaskets;
the inner side of the fastening nut is provided with threads, the bottom of the fastening nut is provided with a fastening nut half-mortise, the cross sections of the bulge and the recess of the fastening nut half-mortise are in the shape of an isosceles right triangle, and the bevel edge of the bulge isosceles right triangle is attached to the lower plane of the fastening nut;
the upper part of the mortise gasket is provided with a half mortise of the mortise gasket, the bulge and the recess of the half mortise of the mortise gasket are isosceles right triangles, and the bottom of the mortise gasket is provided with a flat gasket;
the tenon gasket comprises an upper concave-convex structure and a lower concave-convex structure, wherein the upper concave-convex structure is matched with the half mortise of the fastening nut, and the lower concave-convex structure is matched with the half mortise of the mortise gasket; go up concave-convex structure and be isosceles right triangle, wherein go up concave-convex structure's isosceles right triangle's hypotenuse and concave-convex structure's isosceles right triangle's hypotenuse laminating, the tenon cross-section of tenon gasket is the square.
2. The double-gasket anti-loosening nut with the tenon gasket and the mortise gasket as claimed in claim 1, wherein the area of the isosceles right triangle in the section from the position far away from the center of circle to the position close to the center of circle of the bulge of the half mortise of the fastening nut is gradually reduced; the long sides of the concave isosceles right triangle of the half mortise of the fastening nut are attached to the bottom plane, each concave part forms a half mortise, and each mortise points to the circle center.
3. The double-gasket anti-loosening nut and bolt with the tenon gasket and the mortise gasket as claimed in claim 1, wherein the area of each isosceles right triangle from the position far away from the center of the circle to the position close to the center of the circle of the protrusion of the upper concave-convex structure and the lower concave-convex structure is gradually reduced; the convex parts of the upper concave-convex structure and the lower concave-convex structure are respectively of a half tenon structure, the two half tenon structures of the convex parts of the upper concave-convex structure and the lower concave-convex structure form a complete square tenon, and the section of the square tenon is square; each tenon points to the circle center, and the section area is smaller when the tenon is closer to the circle center.
4. The double-gasket anti-loosening nut with the tenon gasket and the mortise gasket as claimed in claim 1, wherein the area of each isosceles right triangle from the position far away from the center of the circle to the position close to the center of the circle is gradually reduced by the protrusion of the half mortise of the mortise gasket; the long edges of the concave isosceles right triangle of the half mortise of the mortise gasket are attached to the top plane, each concave forms a half mortise, and each mortise points to the circle center; the bottom of the mortise is provided with staggered anti-slip lines.
5. The double-gasket anti-loosening nut with the tenon gasket and the mortise gasket as claimed in claim 1, wherein the thread turning direction of the fastening nut is a right turning direction, the external shape of the fastening nut is a hexagonal nut, and the external diameter and height ratio of the fastening nut is 2: 0.94; the screw pitch of the fastening nut is consistent with that of the bolt, and the inner diameter of the fastening nut is matched with that of the screw.
6. The double-gasket anti-loosening nut with the tenon gasket and the mortise gasket as claimed in claim 1, wherein the tenon gasket is circular in shape, and the ratio of the diameter of the excircle to the height is 2: 0.2; the diameter of the inner hollow round hole is matched with the screw rod.
7. The double-gasket anti-loosening nut with the tenon gasket and the mortise gasket as claimed in claim 1, wherein the mortise gasket is circular in shape, and the ratio of the diameter of the excircle to the height is 2: 0.23; the diameter of the inner hollow round hole is matched with the screw rod.
8. A double-gasket anti-loosening bolt is characterized by being used in combination with the double-gasket anti-loosening nut with the tenon gasket and the mortise gasket, disclosed by any one of claims 1 to 7, wherein the bolt comprises a head and a screw, the head is a hexagonal head, and the height-to-diameter ratio of the head is 0.7: 2; the screw rod is a cylinder with external threads; the major diameter of the screw thread is the same as the thread pitch; the tail end structure of the screw thread at the upper part of the screw rod is a flat-top structure.
9. The double-washer anti-loosening bolt according to claim 8, wherein the screw thread direction is a right-hand direction, the profile shape of the thread profile on the section along the screw axis is an equilateral triangle shape, and the ratio of the thread pitch to the height of the tenon washer is 1: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110603717.5A CN113251059A (en) | 2021-05-31 | 2021-05-31 | Double-gasket anti-loosening nut with tenon gasket and mortise gasket and bolt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110603717.5A CN113251059A (en) | 2021-05-31 | 2021-05-31 | Double-gasket anti-loosening nut with tenon gasket and mortise gasket and bolt |
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| CN113251059A true CN113251059A (en) | 2021-08-13 |
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|---|---|---|---|
| CN202110603717.5A Pending CN113251059A (en) | 2021-05-31 | 2021-05-31 | Double-gasket anti-loosening nut with tenon gasket and mortise gasket and bolt |
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| CN (1) | CN113251059A (en) |
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Application publication date: 20210813 |