CN110219875B - Hexagon socket head cap screw fastener - Google Patents

Hexagon socket head cap screw fastener Download PDF

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Publication number
CN110219875B
CN110219875B CN201910389943.0A CN201910389943A CN110219875B CN 110219875 B CN110219875 B CN 110219875B CN 201910389943 A CN201910389943 A CN 201910389943A CN 110219875 B CN110219875 B CN 110219875B
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China
Prior art keywords
hole
stud
nut
elastic ring
diameter
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CN201910389943.0A
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CN110219875A (en
Inventor
不公告发明人
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Rizhao Jingying Media Technology Co.,Ltd.
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Rizhao Yiming Technology Service Co Ltd
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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
    • 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
    • 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
    • F16B39/32—Locking by means of a pawl or pawl-like tongue

Abstract

The invention belongs to the field of hardware products, and particularly relates to a hexagon socket head cap screw fastener; the bolt comprises a first bolt and a second bolt; the first bolt comprises a first nut and a first stud; the second bolt comprises a second nut, a connecting rod and a second stud; a first hole is formed in the center of the first nut in the direction of the first stud; a second hole is formed in the center of the first stud; the top of the first nut is provided with an inner hexagonal groove; the top of the second nut is also provided with an inner hexagonal groove; the edge of the first nut is provided with an elastic ring, the elastic ring is in a horn shape, the horn mouth of the elastic ring faces downwards, the diameter of the lower edge of the elastic ring is larger than that of the second hole, the elastic ring can pass through the second hole, and the elastic ring can be clamped at the bottom of the first hole; according to the invention, the elastic ring is arranged on the outer edge of the lower end position of the second nut, and the first stud is pulled by the elastic ring on the lower edge of the second nut, so that the effect of preventing the first stud from loosening is realized.

Description

Hexagon socket head cap screw fastener
Technical Field
The invention belongs to the field of hardware products, and particularly relates to an inner hexagonal screw fastener.
Background
At present, engineering facilities such as iron towers, metal frameworks, high-pipe guardrails and the like which are arranged outdoors can not be provided with various fastening devices such as bolts, and the bolts in the market are mostly four-corner or hexagonal nuts, so that the bolts can be easily lifted out by using common tools and can be used as opportunities for lawbreakers.
The prior art also shows that some screw fasteners can realize simple anti-theft function, for example, the utility model patent with the publication number of CN201513445U relates to an anti-theft screw which comprises a columnar boss and a screw rod, and also comprises a nine-angle nut, wherein the nine-angle nut is provided with nine edges with different sizes, the lower part of the nine-angle nut is connected with the columnar boss, and the lower part of the columnar boss is connected with the screw rod; if the authorization notice number is CN203335599U, the anti-theft screw includes a threaded screw rod and a bolt head integrated with the threaded screw rod, the bolt head is in a circular truncated cone shape, a groove is disposed on an end surface of the bolt head, and a clamping column for clamping with a handling tool to enable the anti-theft screw and the handling tool to synchronously rotate is disposed in the groove.
The technical scheme needs to be matched with a special tool to lift the bolt, needs to manufacture the special tool, not only improves the cost, but also is inconvenient to carry, and therefore, the technical scheme still has a plurality of defects.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the socket head cap screw fastener, and aims to save time in the screw tightening process and realize the functions of preventing the bolt from loosening and rusting.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a socket head cap screw fastener, which comprises a first bolt and a second bolt; the first bolt comprises a first nut and a first stud; the second bolt comprises a second nut, a connecting rod and a second stud; the diameters of the second stud and the first stud are the same, and the second stud and the first stud are provided with external threads in the same direction and at the same interval; the diameter of the second nut is larger than that of the connecting rod and smaller than that of the first stud; a first hole is formed in the center of the first nut in the direction of the first stud, and the first hole is cylindrical; the diameter of the first hole is not smaller than that of the second nut and smaller than that of the first stud; a second hole is formed in the center of the first stud, the second hole is positioned below the first hole, the second hole is communicated with the first hole, the second hole is a through hole, and the diameter of the second hole is smaller than that of the first hole and larger than that of the connecting rod; the second nut and the connecting rod can be placed in the first hole, and can freely rotate around the center line of the first stud; the top of the first nut is provided with an inner hexagonal groove; the top of the second nut is also provided with an inner hexagonal groove; the edge of a nut is provided with the elastic ring, and the shape of elastic ring is loudspeaker form, and the horn mouth is down, and the lower limb diameter of elastic ring is greater than the diameter in No. two holes, and the elastic ring can only be followed and up through No. two holes, nevertheless can not follow and down through No. two holes to the elastic ring can block in a hole bottom. During operation, No. two nuts are inserted into the first hole through the second hole, the lower side of the elastic ring clamps the bottom of the first hole, the first stud and the second stud are screwed into the screw hole through the hexagon socket wrench, and the elastic ring on the lower side of the second nut can pull the first stud, so that the purpose of preventing looseness of the first stud is achieved.
A second synchronization module is arranged inside the second stud, a first synchronization module is arranged below the first stud, and the axis of the second synchronization module is collinear with the axis of the first synchronization module; the second synchronization module comprises a third hole, a fourth hole, a pin shaft and a second spring; the third hole is a through hole; the fourth hole is positioned in the middle of the third hole, and the diameter of the fourth hole is larger than that of the third hole; the pin shaft is positioned in the fourth hole and can slide along the fourth hole, and the length of the pin shaft is equal to that of the second stud; the second spring is positioned between the upper surface of the fourth hole and the pin shaft, and the pitch diameter of the second spring is larger than the diameter of the third hole and smaller than the diameter of the middle part of the pin; the first synchronization module comprises a fifth hole, a first spring and a pin; the fifth hole is a blind hole; one end of the first spring is connected with the bottom of the second hole, and the other end of the first spring is connected with one end of the pin; one end of the pin extends out of the blind hole when the first spring naturally extends, and one end of the pin contracts back into the blind hole when the first spring is compressed. When the device works, the lower end of the first stud is attached to the upper end of the second stud, the pin is inserted into the third hole, and the first stud drives the second stud to be screwed into the threaded hole in the process of screwing the first stud into the threaded hole by using a hexagonal wrench, so that the effect of improving the efficiency of screwing the first stud and the second stud is realized; when the second stud is screwed to the bottom of the screw hole, the shaft pin is pushed upwards by the bottom of the screw hole, and the pin is pushed out of the third hole by the upper end of the shaft pin, so that when the first stud is loosened and screwed out of the threaded hole, the first stud cannot drive the second stud to be loosened, and the purpose of preventing the first stud from loosening is achieved.
The number one of the synchronous modules is uniformly distributed along the circumferential direction of the number one of the studs, and the number of the number one of the synchronous modules is at least 2; no. two synchronization module along No. two stud circumference evenly distributed, and No. two synchronization module's quantity is the same with synchronization module No. one. During operation, the number of the clamping points of the first synchronous module and the second synchronous module is at least 2, so that the process that the first stud drives the second stud to screw is more stable.
A first ratchet mechanism is arranged between the connecting rod and the second hole and is an internal engagement ratchet mechanism. When the screw driver works, the first stud drives the connecting rod to rotate in the forward direction through the first ratchet mechanism, and the connecting rod drives the second stud to rotate in the forward direction, so that the first stud and the second stud are synchronously screwed; when the first stud rotates reversely, the first stud slides relative to the second stud through the ratchet mechanism, and the first stud does not drive the second stud to rotate reversely, so that the time-saving effect is realized in the process of screwing the first stud and the second stud, and the looseness of the first stud can be prevented.
A second ratchet mechanism is arranged outside the inner hexagonal groove of the first nut and is an outer meshing ratchet mechanism. During operation, when the threaded hole is located near a wall, one end of a hexagonal wrench can be inserted into the inner hexagonal groove of the first nut to swing in a reciprocating mode, the inner hexagonal groove of the first nut drives the first stud to rotate through the second ratchet mechanism, and therefore the first stud is screwed into the threaded hole, and the process that the first stud is screwed into the threaded hole near the corner is more time-saving.
A rubber ring is arranged on the lower side of the first screw cap, the inner side surface of the rubber ring is attached to the lower side surface of the first screw cap, and the inner side surface of the rubber ring is attached to the outer side surface of the first stud; grooves are formed in two sides of the first stud, a wire is arranged below the rubber ring and passes through the grooves, one end of the wire is connected with the rubber ring, and the other end of the wire is connected with the second stud. During operation, after the second stud is screwed, the first stud is rotated reversely, so that the lower end of the rubber ring is pulled by the wire, the rubber ring compresses a gap between the threaded hole and the first stud, and water is prevented from flowing into the gap between the threaded hole and the first stud to cause the first stud and the second stud to be rusted.
The invention has the following beneficial effects:
1. according to the invention, the elastic ring is arranged on the outer edge of the lower end position of the second nut, and the lower side of the elastic ring clamps the bottom of the first hole, so that the first stud can be pulled by the elastic ring on the lower edge of the second nut, and the purpose of preventing the first stud from loosening is realized.
2. According to the invention, the first synchronous module is arranged at the lower end of the first stud, the second synchronous module is arranged in the second stud, when the first stud is just screwed into the threaded hole, the first synchronous module is clamped with the second synchronous module, and the first stud can drive the second stud to rotate in the process of screwing the first stud, so that the time-saving effect is realized in the process of screwing the first stud and the second stud; when a bolt revolves to the bottom of the threaded hole, the first synchronous module and the second synchronous module are cancelled to be clamped, so that the first stud is not rotated without the second stud in the process of screwing out the first stud, and meanwhile, the second nut pulls the first stud to avoid screwing out the first stud, and the effect of preventing the first stud from loosening is achieved.
3. According to the invention, the first ratchet mechanism is arranged between the connecting rod and the first stud, when the first stud is rotated in a forward direction, the first stud can drive the second stud to be synchronously rotated through the first ratchet mechanism, and when the first stud is rotated in a reverse direction and loosened, the first stud can not drive the second ratchet mechanism to rotate through the first ratchet mechanism, so that in the process of screwing the first stud and the second stud, a time-saving effect is realized, and the first stud can be prevented from being loosened.
Drawings
FIG. 1 is a schematic view of a socket head cap screw fastener according to the present invention;
FIG. 2 is a cross-sectional view taken about A-A in FIG. 1;
FIG. 3 is a cross-sectional view taken about B-B of FIG. 1;
in the figure: no. 1 bolt, No. 11 nut, No. 12 stud, No. 13 hole, No. 14 hole, recess 15, No. 2 bolt, No. 21 nut, connecting rod 22, No. 23 stud, elastic ring 3, No. 4 synchronous module, No. 41 hole, No. 42 spring, pin 43, No. 5 synchronous module, No. 51 hole, No. 52 hole, round pin axle 53, No. 54 spring, No. 6 ratchet mechanism, No. 7 ratchet mechanism, rubber circle 8, line 9.
Detailed Description
A socket head cap screw fastener according to the present invention will be described below with reference to fig. 1 to 3.
As shown in fig. 1 to 3, the hexagon socket head cap screw fastener of the present invention includes a first bolt 1 and a second bolt 2; the first bolt 1 comprises a first nut 11 and a first stud 12; the second bolt 2 comprises a second nut 21, a connecting rod 22 and a second stud 23; the second stud 23 and the first stud 12 are the same in diameter, and the second stud 23 and the first stud 12 are provided with external threads in the same direction and at the same interval; the diameter of the second nut 21 is larger than that of the connecting rod 22 and smaller than that of the first stud 12; a first hole 13 is formed in the center of the first nut 11 in the direction of the first stud 12, and the first hole 13 is cylindrical; the diameter of the first hole 13 is not smaller than that of the second nut 21 and smaller than that of the first stud 12; a second hole 14 is formed in the center of the first stud 12, the second hole 14 is located below the first hole 13, the second hole 14 is communicated with the first hole 13, the second hole 14 is a through hole, and the diameter of the second hole 14 is smaller than that of the first hole 13 and larger than that of the connecting rod 22; the second nut 21 and the connecting rod 22 can be placed in the first hole 13, and the second nut 21 and the connecting rod 22 can freely rotate around the center line of the first stud 12; the top of the first nut 11 is provided with an inner hexagonal groove; the top of the second nut 21 is also provided with an inner hexagonal groove;
the edge of a nut 11 is provided with elastic ring 3, and elastic ring 3's shape is loudspeaker form, and the horn mouth is down, and elastic ring 3's lower limb diameter is greater than the diameter of No. two holes 14, and elastic ring 3 can only be followed up through No. two holes 14 from down, nevertheless can not follow up down through No. two holes 14 to elastic ring 3 can block in a hole 13 bottom. During operation, the second nut 21 is inserted into the first hole 13 through the second hole 14, the lower side of the elastic ring 3 clamps the bottom of the first hole 13, the first stud 12 and the second stud 23 are screwed into the screw holes by using an inner hexagonal wrench, and the elastic ring 3 below the second nut 21 can pull the first stud 12, so that the purpose of preventing the first stud 12 from loosening is achieved.
A second synchronization module 5 is arranged inside the second stud 23, a first synchronization module 4 is arranged below the first stud 12, and the axis of the second synchronization module 5 is collinear with the axis of the first synchronization module 4; the second synchronization module 5 comprises a third hole 51, a fourth hole 52, a pin shaft 53 and a second spring 54; the third hole 51 is a through hole; the fourth hole 52 is positioned in the middle of the third hole 51, and the diameter of the fourth hole 52 is larger than that of the third hole 51; the pin shaft 53 is positioned in the fourth hole 52, the pin shaft 53 can slide along the fourth hole 52, and the length of the pin shaft 53 is equal to that of the second stud 23; the second spring 54 is positioned between the upper surface of the fourth hole 52 and the pin shaft 53, and the middle diameter of the second spring 54 is larger than the diameter of the third hole 51 and smaller than the diameter of the middle part of the pin 43; the first synchronizing module 4 comprises a fifth hole 41, a first spring 42 and a pin 43; the fifth hole 41 is a blind hole; one end of the first spring 42 is connected with the bottom of the second hole 14, and the other end of the first spring 42 is connected with one end of the pin 43; one end of the pin 43 extends out of the blind hole when the first spring 42 naturally extends, and one end of the pin 43 contracts back into the blind hole when the first spring 42 is compressed. When the device works, the lower end of the first stud 12 is attached to the upper end of the second stud 23, the pin 43 is inserted into the third hole 51, and the first stud 12 drives the second stud 23 to be screwed into the threaded hole in the process of screwing the first stud 12 into the threaded hole by using a hexagonal wrench, so that the effect of improving the efficiency of screwing the first stud 12 and the second stud 23 is realized; when the second stud 23 is screwed to the bottom of the screw hole, the pin shaft 53 is pushed upwards by the bottom of the screw hole, so that the pin 43 is pushed out of the third hole 51 by the upper end of the pin shaft 53, and the first stud 12 cannot drive the second stud 23 to loosen when the first stud 12 is loosened and screwed out of the screw hole, thereby achieving the purpose of preventing the first stud 12 from loosening.
The first synchronous modules 4 are uniformly distributed along the circumferential direction of the first stud 12, and the number of the first synchronous modules 4 is at least 2; no. two synchronization module 5 is along No. two stud 23 circumference evenly distributed, and the quantity of No. two synchronization module 5 is the same with No. one synchronization module 4. During operation, the number of the clamping points of the first synchronous module 4 and the second synchronous module 5 is at least 2, so that the process that the first stud 12 drives the second stud 23 to be screwed is more stable.
A first ratchet mechanism 6 is arranged between the connecting rod 22 and the second hole 14, and the first ratchet mechanism 6 is an internal engagement ratchet mechanism. During working, the first stud 12 drives the connecting rod 22 to rotate in the forward direction through the first ratchet mechanism 6, and the connecting rod 22 drives the second stud 23 to rotate in the forward direction, so that the first stud 12 and the second stud 23 are synchronously screwed; when the first stud 12 rotates reversely, the first stud 12 slides relative to the second stud 23 through the first ratchet mechanism 6, and the first stud 12 does not drive the second stud 23 to rotate reversely, so that a time-saving effect is achieved in the process of screwing the first stud 12 and the second stud 23, and looseness of the first stud 12 can be prevented.
A second ratchet mechanism 7 is arranged outside an inner hexagonal groove of the first nut 11, and the second ratchet mechanism 7 is an outer meshing ratchet mechanism. During operation, when the threaded hole is located near a wall, one end of a hexagonal wrench can be inserted into the inner hexagonal groove of the first nut 11 to swing in a reciprocating mode, the inner hexagonal groove of the first nut 11 drives the first stud 12 to rotate through the second ratchet mechanism 7, the first stud 12 is screwed into the threaded hole, and the process that the first stud 12 is screwed into the threaded hole near the wall corner is more time-saving.
A rubber ring 8 is arranged on the lower side of the first screw cap 11, the inner side surface of the rubber ring 8 is attached to the lower side surface of the first screw cap 11, and the inner side surface of the rubber ring 8 is attached to the outer side surface 12 of the first stud; a groove 15 is formed in each of two sides of the first stud 12, a wire 9 is arranged below the rubber ring 8, the wire 9 passes through the groove 15, one end of the wire 9 is connected with the rubber ring 8, and the other end of the wire 9 is connected with the second stud 23. During operation, after the second stud 23 is screwed, the first stud 12 is rotated reversely, so that the wire 9 pulls the lower end of the rubber ring 8, the rubber ring 8 compresses a gap between the threaded hole and the first stud 12, and water is prevented from flowing into the gap between the threaded hole and the first stud 12 to cause the first stud 12 and the second stud 23 to be rusted.
The specific working process is as follows:
when the anti-loosening device works, the second nut 21 is inserted into the first hole 13 through the second hole 14, the bottom of the first hole 13 is clamped by the lower side of the elastic ring 3, the first stud 12 and the second stud 23 are screwed into the screw holes by using an inner hexagonal wrench, and the elastic ring 3 below the second nut 21 can pull the first stud 12, so that the purpose of loosening prevention of the first stud 12 is achieved; the lower end of the first stud 12 is attached to the upper end of the second stud 23, the pin 43 is inserted into the third hole 51, and the first stud 12 drives the second stud 23 to be screwed into the threaded hole in the process of screwing the first stud 12 into the threaded hole by using a hexagonal wrench, so that the effect of improving the efficiency of screwing the first stud 12 and the second stud 23 is realized; when the second stud 23 is screwed to the bottom of the screw hole, the pin shaft 53 is pushed upwards by the bottom of the screw hole, so that the pin 43 is pushed out of the third hole 51 by the upper end of the pin shaft 53, and the first stud 12 cannot drive the second stud 23 to loosen when the first stud 12 is loosened and screwed out of the screw hole, so that the purpose of preventing the first stud 12 from loosening is achieved; the number of the clamping points of the first synchronous module 4 and the second synchronous module 5 is at least 2, so that the process that the first stud 12 drives the second stud 23 to be screwed is more stable; the first stud 12 drives the connecting rod 22 to rotate positively through the first ratchet mechanism 6, and the connecting rod 22 drives the second stud 23 to rotate positively, so that the first stud 12 and the second stud 23 are screwed synchronously; when the first stud 12 rotates reversely, the first stud 12 slides relative to the second stud 23 through the first ratchet mechanism 6, and the first stud 12 does not drive the second stud 23 to rotate reversely, so that the first stud 12 and the second stud 23 are screwed up more time-saving, and the first stud 12 can be prevented from loosening; when the threaded hole is positioned close to a wall, one end of a hexagonal wrench can be inserted into the inner hexagonal groove of the first screw cap 11 to swing back and forth, the inner hexagonal groove of the first screw cap 11 drives the first stud 12 to rotate through the second ratchet mechanism 7, so that the first stud 12 is screwed into the threaded hole, and the process of screwing the first stud 12 into the threaded hole close to the wall corner is more time-saving; after the second stud 23 is screwed, the first stud 12 is rotated reversely, so that the wire 9 pulls the lower end of the rubber ring 8, the rubber ring 8 compresses a gap between the threaded hole and the first stud 12, and water is prevented from flowing into the gap between the threaded hole and the first stud 12 to cause the first stud 12 and the second stud 23 to be rusted.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. A socket head cap screw fastener which characterized in that: comprises a first bolt (1) and a second bolt (2); the first bolt (1) comprises a first nut (11) and a first stud (12); the second bolt (2) comprises a second nut (21), a connecting rod (22) and a second stud (23); the second stud (23) and the first stud (12) are the same in diameter, and the second stud (23) and the first stud (12) are provided with external threads in the same direction and at the same interval; the diameter of the second nut (21) is larger than that of the connecting rod (22) and smaller than that of the first stud (12); a first hole (13) is formed in the center of the first nut (11) in the direction of the first stud (12), and the first hole (13) is cylindrical; the diameter of the first hole (13) is not smaller than that of the second nut (21) and smaller than that of the first stud (12); a second hole (14) is formed in the center of the first stud (12), the second hole (14) is located below the first hole (13), the second hole (14) is communicated with the first hole (13), the second hole (14) is a through hole, and the diameter of the second hole (14) is smaller than that of the first hole (13) and larger than that of the connecting rod (22); the second screw cap (21) and the connecting rod (22) can be placed into the first hole (13), and the second screw cap (21) and the connecting rod (22) can freely rotate around the center line of the first stud (12); the top of the first nut (11) is provided with an inner hexagonal groove; the top of the second nut (21) is also provided with an inner hexagonal groove; the edge of the first nut (11) is provided with an elastic ring (3), the elastic ring (3) is horn-shaped, the horn mouth of the elastic ring is downward, the diameter of the lower edge of the elastic ring (3) is larger than that of the second hole (14), the elastic ring (3) can pass through the second hole (14), and the elastic ring (3) can be clamped at the bottom of the first hole (13);
a second synchronization module (5) is arranged inside the second stud (23), a first synchronization module (4) is arranged below the first stud (12), and the axis of the second synchronization module (5) is collinear with the axis of the first synchronization module (4); the second synchronization module (5) comprises a third hole (51), a fourth hole (52), a pin shaft (53) and a second spring (54); the third hole (51) is a through hole; the fourth hole (52) is positioned in the middle of the third hole (51), and the diameter of the fourth hole (52) is larger than that of the third hole (51); the pin shaft (53) is positioned in the fourth hole (52), the pin shaft (53) can slide along the fourth hole (52), and the length of the pin shaft (53) is equal to that of the second stud (23); the second spring (54) is positioned between the upper surface of the fourth hole (52) and the pin shaft (53), and the middle diameter of the second spring (54) is larger than the diameter of the third hole (51) and smaller than the diameter of the middle part of the pin (43); the first synchronization module (4) comprises a fifth hole (41), a first spring (42) and a pin (43); the fifth hole (41) is a blind hole; one end of the first spring (42) is connected with the bottom of the second hole (14), and the other end of the first spring (42) is connected with one end of the pin (43); one end of the pin (43) extends out of the blind hole when the first spring (42) naturally extends, and one end of the pin (43) contracts back into the blind hole when the first spring (42) is compressed;
a first ratchet mechanism (6) is arranged between the connecting rod (22) and the second hole (14), and the first ratchet mechanism (6) is an internal meshing ratchet mechanism;
a second ratchet mechanism (7) is arranged outside the inner hexagonal groove of the first nut (11), and the second ratchet mechanism (7) is an external meshing ratchet mechanism;
a rubber ring (8) is arranged on the lower side of the first nut (11), the inner side surface of the rubber ring (8) is attached to the lower side surface of the first nut (11), and the inner side surface of the rubber ring (8) is attached to the outer side surface of the first stud (12); grooves (15) are formed in two sides of the first stud (12), a wire (9) is arranged below the rubber ring (8), the wire (9) passes through the grooves (15), one end of the wire (9) is connected with the rubber ring (8), and the other end of the wire (9) is connected with the second stud (23).
2. A socket head cap screw fastener according to claim 1, wherein: the first synchronous modules (4) are uniformly distributed along the circumferential direction of the first stud (12), and the number of the first synchronous modules (4) is at least 2; no. two synchronization module (5) are evenly distributed along the circumference of No. two studs (23), and the number of No. two synchronization module (5) is the same as that of No. one synchronization module (4).
CN201910389943.0A 2019-05-10 2019-05-10 Hexagon socket head cap screw fastener Active CN110219875B (en)

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Application Number Priority Date Filing Date Title
CN201910389943.0A CN110219875B (en) 2019-05-10 2019-05-10 Hexagon socket head cap screw fastener

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Application Number Priority Date Filing Date Title
CN201910389943.0A CN110219875B (en) 2019-05-10 2019-05-10 Hexagon socket head cap screw fastener

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CN110219875A CN110219875A (en) 2019-09-10
CN110219875B true CN110219875B (en) 2020-12-11

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CN112360865B (en) * 2020-11-25 2023-08-22 浙江科佳机械有限公司 Anti-drop fastener

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CN206785835U (en) * 2017-04-07 2017-12-22 深圳沃海森科技有限公司 Suitable for ultra-thin air conditioner outer machine shield fixing bolt
CN207583819U (en) * 2017-12-07 2018-07-06 东莞市富祥五金制品有限公司 Anti-theft screw
CN209430576U (en) * 2018-12-28 2019-09-24 王卫国 A kind of allosome reducing derotation bolt fastening component of never becoming loose

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JPH08232932A (en) * 1995-03-01 1996-09-10 Honda Motor Co Ltd Structure for reducing loosening torque of bolt and loosening method
CN206785835U (en) * 2017-04-07 2017-12-22 深圳沃海森科技有限公司 Suitable for ultra-thin air conditioner outer machine shield fixing bolt
CN207583819U (en) * 2017-12-07 2018-07-06 东莞市富祥五金制品有限公司 Anti-theft screw
CN209430576U (en) * 2018-12-28 2019-09-24 王卫国 A kind of allosome reducing derotation bolt fastening component of never becoming loose

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