CN210531371U - Plum blossom mold screw in flat head - Google Patents

Abstract

The utility model discloses a plum blossom mold screw in flat head, including screw rod, screw thread, anti-disengaging structure, rubber gasket and austenite stainless steel core, all be provided with equidistant screw thread on the outer wall of screw rod, and the one end of screw rod is fixed with the nut to the nut is provided with the plum blossom groove on keeping away from the outer wall of screw rod one side, be provided with interior abaculus on the nut outer wall of plum blossom groove position department, and the internally mounted of interior abaculus has the magnet piece to be fixed with the rubber gasket on the outer wall that interior abaculus is close to plum blossom groove one side, one side of rubber gasket extends to the inside in plum blossom groove, the welding has wear-resisting circle on the inner wall in plum blossom groove, and the inside of wear-resisting circle is fixed with the high manganese steel ring, the nut is provided with anti-disengaging structure on being close to the outer wall of screw. The utility model discloses not only improve the steadiness when the screw uses, the convenience when having improved rotatory screw has reduced the phenomenon that the opening appears in the plum blossom groove, has strengthened the corrosion resistance of screw rod moreover.

Description

Plum blossom mold screw in flat head

Technical Field

The utility model relates to a fastener technical field specifically is a plum blossom mold screw in flat head.

Background

The screw is a common fastening part, is often used for connecting two objects or fixing the position of a certain object, is widely applied to the fields of machinery, electrical appliances, buildings and the like, is generally made of metal or plastic, is cylindrical, is provided with grooves with concave and convex surfaces engraved and called as threads, is one type of screw, and can only be matched with a specific quincunx-shaped screw driver through a special quincunx-shaped nut.

The existing flat-head inner plum blossom type screws in the market are various in types, can basically meet the use requirements of people, but still have certain defects, and have the following specific problems.

(1) The conventional flat-head inner quincunx screw is easy to loose part of threads after being used for a long time, so that the screw is easy to loose, and the fastening effect of the screw in use is influenced;

(2) when the traditional plum blossom-shaped screw with the flat head is used, the situation that the tip of a screwdriver slides down from a plum blossom groove is easy to occur, so that inconvenience is brought to the mounting process of the screw;

(3) when the traditional plum blossom-shaped screw with the flat head is used, the plum blossom groove is easy to generate certain deformation or gap phenomenon due to the scraping and extruding force of the tip of a screwdriver, so that the service life of the plum blossom groove is adversely affected;

(4) when the traditional flat-head inner plum-blossom-shaped screw is used in a humid environment, the outer wall of the screw is easily affected with damp and rusted, so that the screw rod body is easily corroded.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plum blossom mold screw in flat head to the fastening effect when proposing the use of plum blossom mold screw in the flat head is not good in solving above-mentioned background art, and the installation is inconvenient, and the plum blossom groove produces certain deformation easily or the phenomenon and the screw rod body of opening are easily by the problem of corruption.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a plum blossom mold screw in flat head, includes screw rod, screw thread, anti-disengaging structure, rubber gasket and austenite stainless steel core, all be provided with equidistant screw thread on the outer wall of screw rod, and the one end of screw rod is fixed with the nut to be provided with the plum blossom groove on the outer wall that the screw rod one side was kept away from to the nut, the nut is provided with anti-disengaging structure on being close to the outer wall of screw rod one side.

Preferably, an austenitic stainless steel core is arranged inside the screw, a niobium-tantalum alloy layer is coated on the outer wall of the screw, and an epoxy anticorrosive coating is sprayed on the outer wall of the austenitic stainless steel core on the side far away from the screw.

Preferably, be provided with the embedded piece on the nut outer wall of plum blossom groove position department, and the internally mounted of embedded piece has the magnet piece to be fixed with the rubber gasket on the outer wall that the embedded piece is close to plum blossom groove one side, one side of rubber gasket extends to the inside in plum blossom groove.

Preferably, the inner wall of the plum blossom groove is welded with a wear-resistant ring, a high-manganese steel ring is fixed inside the wear-resistant ring, and the outer wall of the high-manganese steel ring is provided with a chromium carbide layer.

Preferably, plastic sucking disc, permanent magnetism circle, exhaust hole, rubber circle have set gradually in anti-disengaging structure's inside, are fixed with the plastic sucking disc on the outer wall that the nut is close to screw rod one side, and the rubber circle is installed to the one end of plastic sucking disc.

Preferably, the outer wall at the top of the plastic sucker is inlaid with a permanent magnetic ring, and the outer wall of the plastic sucker below the permanent magnetic ring is provided with exhaust holes at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that: the plum blossom-shaped screw with the flat head not only improves the stability of the screw when in use, improves the convenience when rotating the screw, reduces the phenomenon that a plum blossom groove has a gap, but also enhances the corrosion resistance of a screw rod;

(1) the plastic sucker is in contact with the surface of an object to be fastened through the plastic sucker, the permanent magnet ring, the exhaust hole and the rubber ring, and the exhaust hole quickly exhausts air on a contact surface, so that the screw is meshed with the object to be fastened more firmly under the magnetic action of the permanent magnet ring after negative pressure is formed, and the stability of the screw in use is improved;

(2) the rubber gasket, the embedded block and the magnet block are arranged, the iron material at the tip of the screwdriver and the magnet block are mutually attracted, and meanwhile, under the action of the rubber gasket, the friction force between the tip of the screwdriver and the quincuncial groove is increased, and the convenience in screw rotation is improved;

(3) by arranging the wear-resistant ring, the high-manganese steel ring and the chromium carbide layer, the hardness of the plum blossom groove is improved by the high-manganese steel ring in the wear-resistant ring, the wear resistance of the plum blossom groove when the plum blossom groove is contacted with the tip of a screwdriver is improved by the high-manganese steel ring, and the phenomenon that the plum blossom groove is notched is reduced, so that the service life of the plum blossom groove is prolonged;

(4) the austenitic stainless steel core, the niobium-tantalum alloy layer and the epoxy anticorrosive coating are arranged, so that the service strength of the screw is improved, the corrosion resistance of the screw is enhanced by the niobium-tantalum alloy layer and the epoxy anticorrosive coating, the screw is not easy to be affected with damp and rusted in a humid environment, and the service life of the screw is prolonged.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

FIG. 4 is a schematic view of the anti-separation structure of the present invention;

FIG. 5 is a side view, a cross-sectional view, and an enlarged structural view of the rubber gasket of the present invention;

fig. 6 is a schematic view of a cross-sectional enlarged structure of the wear-resistant ring of the present invention;

fig. 7 is a schematic view of the cross-sectional enlarged structure of the screw rod of the present invention.

In the figure: 1. a screw; 2. a thread; 3. a nut; 4. a plum blossom groove; 5. an anti-falling structure; 501. a plastic sucker; 502. a permanent magnet ring; 503. an exhaust hole; 504. a rubber ring; 6. a rubber gasket; 7. wear-resistant rings; 8. an embedded block; 9. a magnet block; 10. a high manganese steel ring; 11. a chromium carbide layer; 12. an austenitic stainless steel core; 13. a niobium tantalum alloy layer; 14. epoxy anticorrosive paint.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides an embodiment: a flat head inner quincunx screw comprises a screw rod 1, threads 2, an anti-falling structure 5, a rubber gasket 6 and an austenitic stainless steel core 12, wherein the threads 2 are arranged on the outer wall of the screw rod 1 at equal intervals, a nut 3 is fixed at one end of the screw rod 1, a quincunx groove 4 is formed in the outer wall of the nut 3, which is far away from one side of the screw rod 1, the austenitic stainless steel core 12 is arranged inside the screw rod 1, a niobium-tantalum alloy layer 13 is coated on the outer wall of the screw rod 1, and an epoxy anti-corrosion coating 14 is sprayed on the outer wall of the austenitic stainless steel core 12, which is far away from one side of the screw rod 1, so that the corrosion resistance of the screw rod 1 is;

an inner embedded block 8 is arranged on the outer wall of the nut 3 at the position of the plum blossom groove 4, a magnet block 9 is arranged inside the inner embedded block 8, a rubber gasket 6 is fixed on the outer wall of the inner embedded block 8 close to one side of the plum blossom groove 4, one side of the rubber gasket 6 extends into the plum blossom groove 4 and is used for improving the convenience of screw installation, a wear-resistant ring 7 is welded on the inner wall of the plum blossom groove 4, a high-manganese steel ring 10 is fixed inside the wear-resistant ring 7, a chromium carbide layer 11 is arranged on the outer wall of the high-manganese steel ring 10 and is used for improving the wear resistance of the plum blossom groove 4, and an anti-falling structure 5 is arranged on the outer wall of the nut 3 close to one side of the screw;

a plastic suction cup 501, a permanent magnet ring 502, an exhaust hole 503 and a rubber ring 504 are sequentially arranged in the anti-disengaging structure 5, the plastic suction cup 501 is fixed on the outer wall of one side, close to the screw rod 1, of the screw cap 3, the rubber ring 504 is installed at one end of the plastic suction cup 501, the permanent magnet ring 502 is embedded on the outer wall of the top of the plastic suction cup 501, and the exhaust holes 503 with equal intervals are formed in the outer wall of the plastic suction cup 501 below the permanent magnet ring 502;

in the process of the rotary fastening of the screw, the plastic sucker 501 is in contact with the surface of an object to be fastened, and at the moment, the air on the contact surface is exhausted as fast as possible through the exhaust hole 503, so that the screw is meshed with the object to be fastened more firmly under the magnetic action of the permanent magnet ring 502 after negative pressure is formed, the stability of the screw in use is improved, and the condition that the screw is loosened is reduced.

The working principle is as follows: when the screwdriver is used, a user operates the quincunx screwdriver and clamps the tip of the screwdriver with the quincunx groove 4, the iron material at the tip of the screwdriver and the magnet block 9 attract each other in the process, meanwhile, under the action of the rubber gasket 6, the friction force between the tip of the screwdriver and the quincunx groove 4 is increased, the convenience in screw rotation is improved, then, in the process of operating the screwdriver to rotate, the high manganese steel ring 10 in the wear-resisting ring 7 improves the hardness of the quincunx groove 4, meanwhile, the high manganese steel ring 10 improves the wear resistance of the quincunx groove 4 when in contact with the tip of the screwdriver, the phenomenon that the quincunx groove 4 is opened is reduced, the service life of the quincunx groove 4 is prolonged, finally, in the process of rotating and fastening the screw, the plastic sucker 501 is in contact with the surface of an object to be fastened, at the moment, the exhaust hole 503 exhausts air on the contact surface as fast as possible, and then make the screw and the firm more that is fastened the thing meshing under the magnetic action of permanent magnetism circle 502 after forming the negative pressure, the steadiness when having improved the screw and using, reduced the not hard up condition of screw appearance, in the long-term use of screw, austenite stainless steel core 12 has improved the use strength of screw 1, niobium tantalum alloy layer 13 and epoxy anti-corrosion coating 14 have strengthened the corrosion resistance of screw 1 simultaneously, make screw 1 difficult to be affected with damp rust in moist environment, prolonged the life of screw 1, accomplish the work of the interior plum blossom type screw of flat head.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a plum blossom mold screw in flat head, includes screw rod (1), screw thread (2), anti-disengaging structure (5), rubber gasket (6) and austenite stainless steel core (12), its characterized in that: the anti-falling screw is characterized in that equally spaced threads (2) are arranged on the outer wall of the screw (1), a nut (3) is fixed at one end of the screw (1), a plum blossom groove (4) is formed in the outer wall, far away from one side of the screw (1), of the nut (3), and an anti-falling structure (5) is arranged on the outer wall, close to one side of the screw (1), of the nut (3).

2. The spade head, inner plum blossom type screw according to claim 1 wherein: an austenitic stainless steel core (12) is arranged inside the screw rod (1), a niobium-tantalum alloy layer (13) is coated on the outer wall of the screw rod (1), and an epoxy anticorrosive paint (14) is sprayed on the outer wall of one side, away from the screw rod (1), of the austenitic stainless steel core (12).

3. The spade head, inner plum blossom type screw according to claim 1 wherein: be provided with on nut (3) outer wall of plum blossom groove (4) position department and inlay piece (8), and the internally mounted of inlay piece (8) has magnet piece (9) to be fixed with rubber gasket (6) on the outer wall that inlay piece (8) are close to plum blossom groove (4) one side, one side of rubber gasket (6) extends to the inside of plum blossom groove (4).

4. The spade head, inner plum blossom type screw according to claim 1 wherein: the inner wall of the plum blossom groove (4) is welded with a wear-resistant ring (7), a high-manganese steel ring (10) is fixed inside the wear-resistant ring (7), and a chromium carbide layer (11) is arranged on the outer wall of the high-manganese steel ring (10).

5. The spade head, inner plum blossom type screw according to claim 1 wherein: the anti-disengaging structure (5) is characterized in that a plastic suction cup (501), a permanent magnet ring (502), an exhaust hole (503) and a rubber ring (504) are sequentially arranged inside the anti-disengaging structure, the plastic suction cup (501) is fixed on the outer wall of one side of the screw cap (3) close to the screw rod (1), and the rubber ring (504) is installed at one end of the plastic suction cup (501).

6. The spade head, inner plum blossom type screw according to claim 5 wherein: the outer wall of the top of the plastic sucker (501) is inlaid with a permanent magnet ring (502), and the outer wall of the plastic sucker (501) below the permanent magnet ring (502) is provided with exhaust holes (503) at equal intervals.

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