CN218542868U - Ultrahigh-strength screw with high yield limit ratio - Google Patents

Abstract

The utility model provides a high yield ratio superhigh strength screw, including the screw of high yield ratio high strength, a serial communication port, the screw of high yield ratio high strength mainly comprises two main structures: the screw bolt structure and the screw nut structure are both special bolt nuts, the screw bolt structure is a stud made of internal threads, and the screw nut structure is a nut made of a half-wrapped mode. The utility model discloses the overall structure of high yield ratio high strength's screw is connected for the mode that links up the parcel installation in, the screw thread of this structure is not seted up at the double-screw bolt surface position of self, this mode can avoid when vibrations or external power exert force to the screw post, reduce the screw thread breach and cause the double-screw bolt to appear splitting or by the emergence of tearing phenomenon, can not provide a breach for tearing power, this screw thread is seted up in inside, and then the reduction causes the fracture because the screw thread breach and appears by the tearing condition, improve holistic intensity.

Description

Ultrahigh-strength screw with high yield limit ratio

Technical Field

The utility model belongs to the technical field of the screw, especially, relate to a high yield limit is than super high strength screw.

Background

The strength grade of the bolts for steel structure connection is 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 and other 10 grades. The bolt strength grade label is composed of two parts of numbers which respectively represent the nominal tensile strength value and the yield ratio value of the bolt material. The yield ratio is also called yield ratio, and the yield ratio refers to the ratio of the yield point (yield strength) to the tensile strength of the material. When external shock force is applied, the steel firstly reaches the yield strength, the strength is continuously developed, the structure is deformed, the deformation is visible to the naked eye, a premonitory sign of structural damage appears, people can find and prevent in advance, the larger the yield ratio is, the better the mechanical part (considering material saving and weight reduction) is, the yield ratio can be regarded as a coefficient for measuring the strength storage of the steel, specific or special connecting positions need to be connected and fixed by using screws with high yield ratio, at present, when the whole screw with high yield ratio reaches a certain critical point, the screw can be directly broken, the threads of the existing structure are all arranged on the outer surface of a stud, the gaps of the threads can provide a torn gap for external force, the design can further reduce the broken critical point value, in addition, external liquid enters a thread connecting area to cause rusting, and the critical point is reduced again.

Therefore, it is necessary to develop a screw with high yield ratio and ultra-high strength.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a high yield ratio superhigh strength screw, including the screw of high yield ratio high strength, its characterized in that, the screw of high yield ratio high strength mainly comprises two main structures: the novel steel plate structure comprises a screw bolt structure and a screw nut structure, wherein the screw bolt structure and the screw nut structure are both special bolt nuts, the screw bolt structure is a stud made of internal threads, the screw nut structure is a nut made of a half-wrapped type, the screw bolt structure and the screw nut structure fix parts together through threads, and the screw bolt structure and the screw nut structure are both screw structures made of steel with high yield ratio.

The screw bolt structure is composed of five parts: the internal thread column is a cylinder made of steel with a high yield ratio, the end at the upper end of the internal thread column is the hexagonal end, an internal hollow groove is formed in the internal position of the internal thread column, and the internal hollow groove is formed in the lower internal position of the internal thread column.

The inner side inner wall of the inner hollow groove is provided with an internal thread, an isolation groove is formed below the inner hollow groove, the isolation groove is formed in the lower end face of the internal thread column, and the isolation groove is formed in an annular mode.

The screw nut structure is composed of six parts: outer cap nut, twist reverse end, linking region, linking double-screw bolt, external screw thread and isolated arch, outer cap nut's below position is provided with the twist reverse end of hexagonal body, and outer cap nut is the nut that adopts the cylinder sleeve to make, and outer cap nut's inner zone is linking region.

The central region of linking region is provided with the linking double-screw bolt, and the external screw thread has been seted up on the outside surface that links up the double-screw bolt, and the lower extreme periphery that links up the double-screw bolt is provided with isolated arch, and isolated arch is matchd each other with isolated recess's size, and isolated arch adopts the annular to make the arch.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses the overall structure of the screw of high yield ratio high strength is connected for the mode that interior linking parcel installation, the screw thread of this structure is not seted up at self double-screw bolt surface position, this mode can avoid when vibrations or external force exert force to the screw post, reduce the screw thread breach and cause the double-screw bolt to appear splitting or by tearing phenomenon emergence, can not provide a breach for tearing the power, this screw thread is seted up in inside, and then the reduction causes the fracture because the screw thread breach and appears by the tearing condition, improve holistic intensity.

2. The utility model discloses the screw nut structure of high yield ratio high strength is installed in the below position of double-screw bolt for the mode of parcel, and this screw nut structure can block grease, dust and the piece that the external world got into completely cut off, avoids above-mentioned impurity to enter into the region that the screw thread links up, secondly, avoids having the liquid of impurity to flow into linking up in the region, and this mode can be maximum avoid the screw thread to link up regional phenomenon emergence rusty and difficult to dismantle to appear.

Drawings

Fig. 1 is a schematic structural view of the high yield ratio and high strength screw of the present invention.

Fig. 2 is a schematic view of the structure of fig. 1 in a partial cross section according to the present invention.

In the figure:

the high-yield-ratio and high-strength screw comprises a screw 1 with a high yield ratio and a high strength, a screw bolt structure 2, a screw nut structure 3, an internal thread column 4, a hexagonal end 5, an internal hollow groove 6, an internal thread 7, an isolation groove 8, an external sleeve nut 9, a twisting end 10, a connection area 11, a connection stud 12, an external thread 13 and an isolation bulge 14.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below, 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 efforts shall belong to the protection scope of the present invention.

In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figures 1 to 2:

the utility model provides a pair of high yield ratio superhigh strength screw, including the screw 1 of high yield ratio high strength, screw bolt structure 2, screw nut structure 3, internal thread post 4, hexagonal end 5, interior hollow groove 6, internal thread 7, isolated recess 8, outer cap nut 9 twists reverse end 10, links up regional 11, links up double-screw bolt 12, external screw thread 13 and isolated arch 14, wherein: the high-yield-ratio high-strength screw 1 mainly comprises two main structures: screw bolt structure 2 and screw nut structure 3, screw bolt structure 2 and screw nut structure 3 are special bolt and nut, screw bolt structure 2 is the double-screw bolt that adopts the internal thread to make, screw nut structure 3 is the nut that adopts half-wrapped formula to make, screw bolt structure 2 and screw nut structure 3 are together fixed with spare part through the screw thread, screw bolt structure 2 and screw nut structure 3 all are the screw structure of adopting high yield ratio steel to make, internal thread post 4 is the cylinder of adopting high yield ratio steel to make, the end of the upper end of internal thread post 4 is hexagonal end 5, interior hollow groove 6 has been seted up to the inside position of internal thread post 4, interior hollow groove 6 is seted up in the inside position of internal thread post 4, the pitch of internal thread 7 and external screw thread 13 is between 2mm to 4mm, the whole length of internal thread 7 and external screw thread 13 is between 40mm to 60mm, the whole length of screw bolt structure 2 is between 100mm to 150mm, the height of screw nut structure 3 is between 60mm to 80 mm.

Example (b):

an internal thread 7 is formed in the inner side inner wall of the inner hollow groove 6, an isolation groove 8 is formed in the lower position of the inner hollow groove 6, the isolation groove 8 is formed in the lower end face of the internal thread column 4, the isolation groove 8 is a groove formed in an annular shape, a connecting stud 12 is arranged in the center area of a connecting area 11, an external thread 13 is formed in the outer side surface of the connecting stud 12, an isolation protrusion 14 is arranged on the periphery of the lower end of the connecting stud 12, the size of the isolation protrusion 14 is matched with that of the isolation groove 8, the isolation protrusion 14 is a protrusion formed in an annular shape, the overall structure of the screw 1 with high yield ratio and high strength is connected in an internal-connection and external-wrapping installation mode, threads of the structure are not formed in the surface position of the internal thread column 4, the mode can avoid the phenomenon that the stud is broken or torn due to thread gaps when vibration or external force is applied to the internal thread column 4, a gap cannot be provided for tearing force, the threads are formed in the inner portion, the threads are further reduced, the situations that the stud is broken and torn due to improve the overall strength; the screw 1 nut structure of high yield ratio high strength installs the below position at the double-screw bolt for the mode of parcel 3, this screw nut structure can be with the grease that external world got into, dust and piece block completely cuts off, avoid above-mentioned impurity to enter into the region of screw thread linking, secondly, avoid having impurity's liquid flow in linking in the region, this mode can be maximum avoid screw thread linking region to appear rustting and the phenomenon emergence of being difficult to dismantle, when needing to install, preferentially pass screw bolt structure 2 behind the part that needs to be fixed together, screw nut structure 3 links up fixedly together with screw bolt structure 2, screw nut structure 3's linking double-screw bolt 12 aims at screw bolt structure 2's interior hollow groove 6 position, then twist reverse end 10 through finger or instrument, it is rotatory that twist end 10 drives overcoat nut 9, at this moment, interior thread 7 of interior hollow double-screw bolt groove 6 is in the same place with the external screw thread 13 that links up 12, the isolated protruding 14 stack of recess 8 and screw nut structure 3 of screw bolt linking structure 2 matches together each other after the completion.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims (5)

1. A high yield ratio ultra high strength screw, comprising a high yield ratio high strength screw (1), characterized in that said high yield ratio high strength screw (1) is mainly composed of two main structures: the screw bolt structure (2) and the screw nut structure (3), the screw bolt structure (2) and the screw nut structure (3) are special bolt nuts, the screw bolt structure (2) is a stud made of internal threads, the screw nut structure (3) is a nut made of a half-wrapped type, and the screw bolt structure (2) and the screw nut structure (3) fix parts together through threads.

2. A high yield ratio ultra-high strength screw as defined in claim 1, wherein: the screw bolt structure (2) is composed of five parts: internal thread post (4), hexagonal end (5), interior hollow groove (6), internal thread (7) and isolated recess (8), internal thread post (4) are the cylinder of adopting high yield ratio steel to make, and the end of the upper end of internal thread post (4) is hexagonal end (5), and interior hollow groove (6) have been seted up to the inside position of internal thread post (4), and interior hollow groove (6) are seted up in the below inside position of internal thread post (4).

3. The high yield ratio ultra-high strength screw of claim 2, wherein: internal thread (7) have been seted up to the inboard inner wall in interior hollow groove (6), and isolated recess (8) have been seted up to the below position in interior hollow groove (6), and isolated recess (8) are seted up on the lower extreme terminal surface of internal thread post (4), and isolated recess (8) are the recess that adopts the annular to make.

4. A high yield ratio ultra-high strength screw as defined in claim 1, wherein: the screw and nut structure (3) is composed of six parts: overcoat nut (9), twist reverse end (10), join up regional (11), join up double-screw bolt (12), external screw thread (13) and isolated arch (14), the below position of overcoat nut (9) is provided with the twist reverse end (10) of hexagonal prism body, and overcoat nut (9) is the nut that adopts the cylinder sleeve to make, and the inner zone of overcoat nut (9) is join up regional (11).

5. The high yield ratio ultra-high strength screw of claim 4, wherein: the central area of the connection area (11) is provided with a connection stud (12), the outer side surface of the connection stud (12) is provided with an external thread (13), the periphery of the lower end of the connection stud (12) is provided with an isolation bulge (14), the size of the isolation bulge (14) and the size of the isolation groove (8) are matched with each other, and the isolation bulge (14) is made into a bulge in an annular shape.

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