CN215762689U

CN215762689U - Easily attack screw

Info

Publication number: CN215762689U
Application number: CN202121406083.6U
Authority: CN
Inventors: 周琦; 何陈豪; 周强特; 彭继华; 仲崇岩
Original assignee: Yueqing Qiangte Fastener Manufacturing Co ltd
Current assignee: Yueqing Qiangte Fastener Manufacturing Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-02-08
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses an easy-to-tap screw which structurally comprises a screw body, wherein the screw body comprises a head part and a rod part fixedly connected with the head part, the head part and the rod part are coaxially arranged, one end, far away from the rod part, of the head part is provided with a groove matched with a screwdriver, the rod part sequentially comprises a smooth part, a first threaded part and a second threaded part from left to right, the first threaded part and the second threaded part have the same pitch and the same rotating direction, and the second threaded part is provided with a plurality of cutting grooves for chip removal. According to the utility model, the cutting groove is arranged on the second thread part to help to discharge chips quickly, so that the screw is more labor-saving in tapping.

Description

Easily attack screw

Technical Field

The utility model relates to the technical field of fasteners, in particular to an easily-tapped screw.

Background

Screws are a very common fastening device. At present, when the screw is used for fixing objects to wooden materials, plastic materials and other fixtures in the field of mechanical engineering, due to the extrusion effect of the scraps of the fixtures such as plastics and wood boards, the scraps cannot be discharged in time to influence the attack speed of the screw, the torque force required by screwing the screws backwards is larger, the scraps are filled between the screw and the fixtures, and the screw is easy to loosen after being used for a period of time.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide an easy-to-tap screw to solve the technical problem.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an easily attack screw, includes the screw body, the screw body include the head and with head fixed connection's pole portion, head and the coaxial setting of pole portion, the head keep away from the one end of pole portion and seted up with screwdriver complex recess, pole portion from left to right includes smooth portion, first screw portion and second screw portion in proper order, first screw portion equals with second screw portion pitch and revolves to the same, second screw portion sets up a plurality of cutting flutes that are used for the chip removal.

The scheme has the advantages that: aim at station and screw in with the screw body, second screw portion at first gets into the station and helps quick discharge piece through the cutting groove at the screw in-process for the screw body is more laborsaving when attacking, and then second screw portion can the holding in the cutting groove owing to continue inwards screwing up the piece that produces when first screw portion gets into the station, makes the piece can not fill and takes place to become flexible after the installation between screw body and fixture.

The utility model is further configured to: the cutting grooves are arranged along the track direction of the second thread part at equal intervals, the adjacent cutting grooves are arranged at the same side, and the cutting grooves are designed in a semicircular structure.

The scheme has the advantages that: a plurality of middle cutting grooves can be arranged as required so as to improve the chip removal amount, and the adjacent cutting grooves are arranged at the same side so that chips can be moved and discharged along the adjacent cutting grooves, thereby improving the chip removal efficiency; furthermore, the cutting groove is designed to be of a semicircular structure, so that more chips can be accommodated in the cutting groove, and the problem that the installation stability of the screw body is influenced due to the accumulation of the chips in the subsequent screwing process is avoided.

The utility model is further configured to: the smooth part is the design of round platform column structure, and the external diameter that the smooth part is close to head one side equals with the external diameter of first screw thread portion and second screw thread portion, and the external diameter that the smooth part kept away from head one side equals with the external diameter of pole portion.

The scheme has the advantages that: the outer lane of round platform form smooth part has the guide inclined plane, and the guide inclined plane can make the screw body adjust to suitable angle and slide in the exact installation station when the screw body takes place to be crooked for the screw body can accurately aim at the installation station after the installation is accomplished, improves the installation accuracy, and the screw body compresses tightly and then improves the installation steadiness of screw body at the in-process guide inclined plane of impressing and installation station simultaneously.

The utility model is further configured to: the ratio of the number of the first thread part and the second thread part in thread arrangement is 1: 1, and the thread angles of the first thread part and the second thread part are both 60 degrees.

The scheme has the advantages that: the installation station can be more laborsaving squeezed into for sixty degree screw to screw thread angle, and the proportion of first screw portion and second screw portion thread array number is 1: 1, the installation tightness of the screw body is improved while the discharge of redundant debris is ensured through the matching between the first thread part and the second thread part.

The utility model is further configured to: one end of the rod part, which is far away from the head part, is provided with a tapping part which is designed in a conical structure.

The scheme has the advantages that: attack portion and make the screw body more laborsaving when attacking the station, avoid attacking the portion of attacking and cause the fracture or the damage of station when attacking the station.

The utility model is further configured to: the outer edge of one side of the head part close to the rod part extends to form a gasket part, the gasket part and the head part are integrally formed, and the outer diameter of the gasket part is larger than that of the head part.

The scheme has the advantages that: the contact area between the head of the screw body and the mounting station is increased by arranging the gasket part, so that the mounting tightness of the screw body is improved; the gasket part and the head part are designed into an integrated structure, so that the production and processing process of the screw body is more convenient, the production burden is reduced, and meanwhile, the gasket is prevented from falling or losing in the transportation process.

The utility model is further configured to: the head is far away from the one end of pole portion and has seted up the chamfer, and gasket portion periphery is the circular arc structural design.

The scheme has the advantages that: through the arc structural design of the chamfer and the gasket that the head was seted up, avoid the work piece too sharply and then stab the staff, security when improving the installation screw body.

The utility model is further configured to: the groove is one of a cross shape, a straight shape, a rice shape or a plum blossom shape.

The scheme has the advantages that: the groove with the structure is convenient to match with a standard workpiece, and is more convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the present invention;

fig. 3 is a bottom view of the present invention.

Reference numerals: 1. a screw body; 100. a head portion; 101. a groove; 102. a gasket portion; 103. chamfering; 2. a rod portion; 200. a smooth portion; 201. a first threaded portion; 202. a second threaded portion; 203. cutting a groove; 204. and (4) tapping the part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, an easy-tapping screw according to an embodiment of the present invention includes a screw body 1, the screw body 1 includes a head portion 100 and a rod portion 2 fixedly connected to the head portion 100, the head portion 100 and the rod portion 2 are coaxially disposed, a groove 101 matched with a screwdriver is disposed at an end of the head portion 100 away from the rod portion 2, the rod portion 2 sequentially includes a smooth portion 200, a first threaded portion 201 and a second threaded portion 202 from left to right, the first threaded portion 201 and the second threaded portion 202 have the same pitch and the same rotation direction, and the second threaded portion 202 has a plurality of cutting grooves 203 for removing chips.

When using, aim at the station with screw body 1 and screw in, second screw portion 202 at the screw in-process at first gets into the station and helps quick discharge piece through cutting groove 203 for the screw is more laborsaving when attacking, and then second screw portion 202 can be held in cutting groove 203 owing to the piece that continues inwards screw up the production when first screw portion 201 gets into the station, makes the piece can not fill between screw body 1 and fixture and then avoid screw body 1 to take place to become flexible after the installation.

The cutting grooves 203 are equidistantly arranged along the track direction of the second thread part 202, the adjacent cutting grooves 203 are arranged on the same side, and the cutting grooves 203 are designed in a semicircular structure.

When the screw body 1 is used, the cutting grooves 203 are arranged along the track direction of the second thread part 202 at equal intervals, wherein a plurality of cutting grooves 203 can be arranged as required, so that the chip removal amount is increased, preferably, the number of the cutting grooves 203 per circle of threads is four, so that the chip removal amount is ensured, and the connection tightness of the screw body 1 is improved; the same side is arranged between the adjacent cutting grooves 203, so that the chips can move and be discharged along the adjacent cutting grooves 203, and the chip removal efficiency is improved; further, the cutting groove 203 is designed to be a semicircular structure, so that the cutting groove 203 can accommodate more chips, and further, the problem that the installation stability of the screw body 1 is affected due to the accumulation of the chips in the subsequent screwing process is avoided.

The smooth portion 200 is of a truncated cone-shaped structure, the outer diameter of the smooth portion 200 on the side close to the head portion 100 is equal to the outer diameters of the first thread portion 201 and the second thread portion 202, and the outer diameter of the smooth portion 200 on the side away from the head portion 100 is equal to the outer diameter of the shank portion 2.

When the mounting tool is used, when the screw body 1 is completely screwed to a mounting station, the outer ring of the circular truncated cone-shaped smooth part 200 is provided with the guide inclined surface, when the screw body 1 is inclined, the guide inclined surface can enable the screw body 1 to be adjusted to a proper angle and slide into a correct mounting station, so that the screw body 1 can be accurately aligned to the mounting station after mounting is completed, mounting precision is improved, and meanwhile, the guide inclined surface and the mounting station are compressed tightly in the pressing-in process of the screw body 1, and mounting stability of the screw body 1 is improved.

The ratio of the number of the first thread part 201 to the number of the second thread part 202 in the thread arrangement is 1: 1, and the thread angles of the first thread part 201 and the second thread part 202 are both 60 degrees.

When the screw driver is used, the screw with the thread angle of sixty degrees can be driven into an installation station more labor-saving, and the proportion of the thread arrangement number of the first thread part 201 and the second thread part 202 is 1: 1, make the piece of second screw thread portion 202 in-process of driving into can discharge the installation station, then continue to drive into the screw and impel first screw thread portion 201 to get into the installation station, the piece that produces this moment can be held and can not cause the influence to the screw in of screw body 1 in cutting groove 203, improves the installation fastening nature of screw body 1 when guaranteeing unnecessary piece discharge through the cooperation between first screw thread portion 201 and the second screw thread portion 202.

The end of the shank 2 remote from the head 100 has a tapping portion 204, the tapping portion 204 being of conical design.

When using, attack portion 204 and make screw body 1 more laborsaving when attacking the station for the design of toper structure, avoid attacking portion 204 simultaneously and cause the fracture or the damage of station when attacking the station.

The outer edge of the head part 100 near the rod part 2 extends with a gasket part 102, the gasket part 102 is integrally formed with the head part 100, and the outer diameter of the gasket part 102 is larger than that of the head part 100.

When the screw body 1 is used, the contact area between the head 100 of the screw body 1 and an installation station is increased by arranging the gasket part 102, and the installation tightness of the screw body 1 is further improved; the gasket part 102 and the head part 100 are designed to be integrated, so that the production and processing processes of the screw body 1 are more convenient, the production burden is reduced, and the gasket is prevented from falling or losing in the transportation process of the screw body 1.

The head 100 is provided with a chamfer 103 at one end away from the rod 2, and the periphery of the gasket part 102 is designed to be in a circular arc structure.

When using, through the arc structural design of chamfer 103 and gasket that head 100 was seted up, avoid the work piece too sharply and then stab the staff, improve the screw body 1 security during the installation.

The groove 101 is one of a cross shape, a straight shape, a rice shape or a quincunx shape.

When the groove 101 with the structure is used, the groove is conveniently matched with a standard workpiece, and the use is more convenient.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides an easy-to-tap screw, includes screw body (1), its characterized in that: screw body (1) include head (100) and with head (100) fixed connection's pole portion (2), head (100) and pole portion (2) coaxial setting, head (100) keep away from the one end of pole portion (2) and seted up with screwdriver complex recess (101), pole portion (2) are by left side to right side in proper order including smooth portion (200), first screw portion (201) and second screw portion (202) pitch equal and the same to the turning, a plurality of cutting flutes (203) that are used for the chip removal are seted up to second screw portion (202).

2. The easy-to-tap screw of claim 1, wherein: the cutting grooves (203) are arranged along the track direction of the second threaded part (202) at equal intervals, the adjacent cutting grooves (203) are arranged at the same side, and the cutting grooves (203) are designed to be of semicircular structures.

3. The easy-to-tap screw of claim 1 or 2, wherein: the smooth part (200) is designed to be in a circular truncated cone-shaped structure, the outer diameter of one side, close to the head part (100), of the smooth part (200) is equal to the outer diameters of the first threaded part (201) and the second threaded part (202), and the outer diameter of one side, far away from the head part (100), of the smooth part (200) is equal to the outer diameter of the rod part (2).

4. The easy-to-tap screw of claim 1 or 2, wherein: the ratio of the number of the thread arrangement of the first thread part (201) to the number of the thread arrangement of the second thread part (202) is 1: 1, and the thread angles of the first thread part (201) and the second thread part (202) are both 60 degrees.

5. The easy-to-tap screw of claim 4, wherein: one end of the rod part (2) far away from the head part (100) is provided with an attack part (204), and the attack part (204) is designed to be a conical structure.

6. The easy-to-tap screw of claim 1, wherein: the gasket part (102) extends from the outer edge of one side, close to the rod part (2), of the head part (100), the gasket part (102) and the head part (100) are integrally formed, and the outer diameter of the gasket part (102) is larger than that of the head part (100).

7. The easy-to-tap screw of claim 6, wherein: a chamfer (103) is formed in one end, far away from the rod part (2), of the head part (100), and the periphery of the gasket part (102) is designed to be of an arc structure.

8. The easy-to-tap screw of claim 1, wherein: the groove (101) is one of a cross shape, a straight shape, a rice shape or a plum blossom shape.