CN216143037U

CN216143037U - Combined bolt with cutting groove

Info

Publication number: CN216143037U
Application number: CN202121479321.6U
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: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-03-29
Anticipated expiration: 2031-06-30

Abstract

The utility model relates to the technical field of fasteners, in particular to a combined bolt with a cutting groove, which comprises a screw and a hexagonal nut, wherein the hexagonal nut is arranged at the upper end of the screw, the screw is provided with a screw body and a threaded rod at the lower end of the screw body, an external thread section is arranged on the periphery of the threaded rod, a cutting area is arranged at the lower section of the external thread section, a first cutting section, a second cutting section and a third cutting section are arranged on the cutting area, and the first cutting section, the second cutting section and the third cutting section are circumferentially arranged on the external thread section. The threaded rod of screw rod body lower extreme passes through the external screw thread section and fixes the article to the fixture, the fixed mounting in-process, the cutting area of external screw thread section hypomere preferentially carry out cutting work, first cutting section, second cutting section and third cutting section on the cutting area mutually support and further carry out the priority to getting rid of the piece that produces between screw rod body and the fixture, prevent that the too much installation of influence screw rod body and fixture of piece is fixed.

Description

Combined bolt with cutting groove

Technical Field

The utility model relates to the technical field of fasteners, in particular to a combined bolt with a cutting groove.

Background

The bolt is a common fastener, is widely used on machinery, electrical appliances and buildings, and when the bolt is used for fixing an object to a fixed object in the field of mechanical engineering, the fixed object is extruded by fragments of the fixed object, the fragments cannot be discharged in time, so that the torque force required by screwing the bolt backwards is larger, the fragments are filled between the bolt and the fixed object, the installation of the bolt is influenced, and the bolt is easy to loosen.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a combined bolt with a cutting groove.

The technical scheme adopted by the utility model is as follows: the utility model provides a combination bolt in area cutting groove, is including the screw rod and set up in the hexagon nut of screw rod upper end, the screw rod have screw rod body and the threaded rod of screw rod body lower extreme, from the top down has set gradually the wave form gasket and has filled up with flat on the screw rod body, the screw rod body as an organic whole with the threaded rod shaping, the threaded rod periphery is provided with the external screw thread section, the hypomere of external screw thread section be provided with the cutting district, the cutting district on have first cutting section, second cutting section and third cutting section, first cutting section, second cutting section and the equal circumference of third cutting section set up in on the external screw thread section.

The scheme has the advantages that: the threaded rod of screw rod body lower extreme passes through the external screw thread section and fixes the article to on fixings such as wooden material, plastic materials, and during the fixed mounting process, the cutting area of external screw thread section hypomere preferentially carry out cutting work, first cutting section, second cutting section and third cutting section on the cutting area mutually support and further carry out the priority to getting rid of the piece that produces between screw rod body and the fixings, prevent that the too much installation of influence screw rod body and fixings of piece is fixed.

The utility model is further configured to: the external screw thread section is including a plurality of screw thread profile, screw thread profile along threaded rod axial setting, first cutting section, second cutting section and third cutting section all locate on the screw thread profile in cutting district.

The scheme has the advantages that: the external thread section mainly comprises a plurality of thread profile, and first cutting section, second cutting section and third cutting section on the cutting area in this design all are located the thread profile, and the external thread section is at the rotation process, and first cutting section, second cutting section and third cutting section are directly rotated through the thread profile and are further cut the fixture to it is more smooth and easy to let the cutting area carry out cutting work during.

The utility model is further configured to: the number of the first cutting sections is two, the number of the second cutting sections is one, and the number of the third cutting sections is one; the first oblique cutting section is provided with 3 first cutting grooves, the second cutting section is provided with 3 first cutting grooves and one second cutting groove, the third cutting section is provided with two first cutting grooves and one third cutting groove, and each first cutting groove, each second cutting groove and each third cutting groove respectively correspond to one thread tooth form.

The scheme has the advantages that: the first cutting section, the second cutting section and the third cutting section are circumferentially arranged on the cutting area of the external thread section, and are provided with the first cutting groove, the second cutting groove and the third cutting groove along the thread profile, so that the first cutting groove, the second cutting groove and the third cutting groove are conveniently formed in the thread profile, and the process difficulty is further reduced.

The utility model is further configured to: be equipped with drive screw thread profile on the screw thread profile, drive screw thread profile be located the bottom of screw thread profile, the third cutting flutes on first cutting flutes on the first skew section, the second cutting flutes on the second cutting section and the third cutting flutes on the third cutting section all set up on drive screw thread profile.

The scheme has the advantages that: when the threaded rod is installed fixedly, the external thread section on the drive screw thread profile of bottom preferably attack, through rotating along first cutting flute, second cutting flute and the third cutting flute on the drive screw thread profile, further preferentially get rid of the piece between fixture and the threaded rod to the chip removal is carried out to the first cutting flute on the screw thread profile of deuterogamying, has improved the cutting efficiency in cutting area greatly.

The utility model is further configured to: the driving thread profile comprises a first tooth bottom and a first tooth top, and a first cutting groove, a second cutting groove and a third cutting groove on the driving thread profile have the same grooving mode and are all opened from the first tooth top to the first tooth bottom.

The scheme has the advantages that: because the structures of the first cutting groove and the third cutting groove on the second cutting groove on the driving thread profile are different, the grooving modes of the first cutting groove, the second cutting groove and the third cutting groove are the same, and therefore the first cutting groove, the second cutting groove and the third cutting groove can be conveniently machined.

The utility model is further configured to: the thread profile comprises a second thread root and a second thread top, and the first cutting grooves on the first cutting section, the second cutting section and the third cutting section are all opened from the second thread top to the second thread bottom.

The scheme has the advantages that: the groove bottoms of the first cutting grooves in the first cutting section, the second cutting section and the third cutting section are located on the same plane, so that the first cutting section, the second cutting section and the third cutting section can carry out chip removal work conveniently.

The utility model is further configured to: the upper end of the threaded rod is provided with a limit thread profile, and the outer diameter of the limit thread profile is slightly larger than the diameter of the screw body.

The scheme has the advantages that: the flat pad is sleeved on the screw body, and because the diameter of the screw body is smaller than the outer diameter of the limit thread profile, the flat pad is positioned above the limit thread profile of the external thread section when the flat pad is not installed and fixed, so that the flat pad is not easy to separate from the screw body, and is further convenient to store and transport.

Drawings

In order to more clearly illustrate the embodiments or prior art solutions of the present invention, the drawings needed for the description of the embodiments or prior art will be briefly described below, and it is apparent that other drawings will be obtained from the drawings.

FIG. 1 is an exploded view of the present invention as a whole;

FIG. 2 is a perspective view of the second cutting segment and the third cutting segment of FIG. 1;

FIG. 3 is a perspective view of the first cutting segment of FIG. 1;

FIG. 4 is a structural view of a first cutting flute, a second cutting flute and a third cutting flute of FIG. 2;

FIG. 5 is a schematic view of the thread form and the driving thread form of FIG. 3.

The labels in the figure are: the thread cutting device comprises a screw 1, a hexagon nut 2, a screw body 3, a threaded rod 4, an external thread section 41, a cutting area 5, a first cutting section 51, a second cutting section 52, a third cutting section 53, a thread profile 411, a first cutting groove 6, a second cutting groove 7, a third cutting groove 8, a driving thread profile 412, a first thread bottom 4121, a first thread top 4122, a second thread bottom 4111, a second thread top 4112, a limit thread profile 413, a wave-shaped gasket 9 and a flat gasket 10.

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.

In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 5, a combination bolt with a cutting groove comprises a screw rod 1 and a hexagon nut 2 arranged at the upper end of the screw rod 1, wherein the screw rod 1 is provided with a screw rod body 3 and a threaded rod 4 at the lower end of the screw rod body 3, a wave-shaped gasket 9 and a flat gasket 10 are sequentially sleeved on the screw rod body 3 from top to bottom, and the screw rod body 3 and the threaded rod 4 are formed into a whole;

in order to remove chips between the threaded rod 4 and a fixed object, the periphery of the threaded rod 4 is provided with an external thread section 41, the lower section of the external thread section 41 is provided with a cutting area 5, the cutting area 5 is provided with a first cutting section 51, a second cutting section 52 and a third cutting section 53, and the first cutting section 51, the second cutting section 52 and the third cutting section 53 are circumferentially arranged on the external thread section 41;

the threaded rod 4 at the lower end of the screw body 3 fixes an object to a fixed object such as a wood material, a plastic material and the like through the external thread section 41, in the fixing and mounting process, the cutting area 5 at the lower section of the external thread section 41 preferentially performs cutting work, and the first cutting section 51, the second cutting section 52 and the third cutting section 53 on the cutting area 5 are mutually matched to further preferentially remove chips generated between the screw body 3 and the fixed object, so that the phenomenon that the installation and the fixation of the screw body 3 and the fixed object are influenced by excessive chips is prevented.

In order to make the chip removal of the first cutting section 51, the second cutting section 52 and the third cutting section 53 smoother, in a preferred embodiment of the present invention, the external thread section 41 includes a plurality of thread profiles 411, the thread profiles 411 are axially disposed along the threaded rod 4, the external thread section 41 mainly includes a plurality of thread profiles 411, and the first cutting section 51, the second cutting section 52 and the third cutting section 53 are circumferentially disposed on the thread profiles 411 of the cutting area 5;

during the rotation of the external thread section 41, the first cutting section 51, the second cutting section 52 and the third cutting section 53 directly rotate through the thread profile 411 to further cut the fixture, so that the cutting operation of the cutting area 5 is smoother.

The first cutting section 51, the second cutting section 52 and the third cutting section 53 are circumferentially arranged on the cutting area 5 of the external thread section 41, the number of the first cutting sections 51 is two, the number of the second cutting sections 52 is one, and the number of the third cutting sections 53 is one; the first cutting segment has 3 first cutting flutes 6, the second cutting segment 52 has 3 first cutting flutes 6 and one second cutting flute 7, the third cutting segment 53 has two first cutting flutes 6 and one third cutting flute 8, and each of the first cutting flutes 6, the second cutting flutes 7 and the third cutting flutes 8 corresponds to one thread profile 411.

In order to allow the cutting area 5 to perform the preferential cutting operation, in a preferred embodiment of the present invention, a driving thread profile 412 is provided on the thread profile 411, the driving thread profile 412 is located at the bottom end of the thread profile 411, and the first cutting flutes 6 on the first inclined section, the second cutting flutes 7 on the second cutting section 52, and the third cutting flutes 8 on the third cutting section 53 are all provided on the driving thread profile 412;

threaded rod 4 is when installing fixedly, external screw thread section 41 on the drive thread profile 412 of bottom preferably attack, threaded rod 4 is through rotating along first cutting flutes 6, second cutting flutes 7 and third cutting flutes 8 on the drive thread profile 412, further preferentially gets rid of the piece between fixture and the threaded rod 4 to the first cutting flutes 6 on the screw thread profile 411 of deuterogamying carries out the chip removal, has improved the cutting efficiency of cutting district 5 greatly.

In order to facilitate the opening of the first cutting groove 6, the second cutting groove 7 and the third cutting groove 8 in the driving thread profile 412 and the thread profile 411, in a preferred embodiment of the utility model, the driving thread profile 412 comprises a first root 4121 and a first crest 4122, the first cutting groove 6, the second cutting groove 7 and the third cutting groove 8 on the driving thread profile 412 are all opened from the first crest 4122 to the first root 4121, and as the structures of the first cutting groove 6 on the driving thread profile 412 and the third cutting groove 8 on the second cutting groove 7 are different, the first cutting groove 6, the second cutting groove 7 and the third cutting groove 8 have the same grooving mode, the grooving processing for the first cutting groove 6, the second cutting groove 7 and the third cutting groove 8 is facilitated, and the process difficulty is further reduced;

the thread profile 411 comprises a second root 4111 and a second crest 4112, the first cutting flutes 6 on the first cutting segment 51, the second cutting segment 52 and the third cutting segment 53 are all from the second root 4112 to the second root 4111, and the flute bottoms of the first cutting flutes 6 on the first cutting segment 51, the second cutting segment 52 and the third cutting segment 53 are located on the same plane, so that the chip removal work of the first cutting segment 51, the second cutting segment 52 and the third cutting segment 53 is further facilitated.

In order to prevent the flat gasket 10 from separating from the screw body 3, the preferred embodiment of the utility model is that the upper end of the threaded rod 4 is provided with a limit thread profile 413, and the outer diameter of the limit thread profile 413 is slightly larger than the diameter of the screw body 3; the flat pad 10 is sleeved on the screw body 3, and because the diameter of the screw body 3 is smaller than the outer diameter of the limit thread profile 413, the flat pad 10 is positioned above the limit thread profile 413 of the external thread section 41 when not being installed and fixed, so that the flat pad is not easy to separate from the screw body 3, and further convenient to store and transport.

The working mode is as follows: aligning a threaded rod 4 at a designated mounting position on a fixture, then rotating a hexagon nut 2 at the upper end of the threaded rod 1, and slowly mounting the fixture by the threaded rod 4 through a flat pad 10 through an external thread section 41 until the flat pad 10 is attached to the fixture to realize positioning;

during the installation process of the threaded rod 4, the first cutting section 51, the second cutting section 52 and the third cutting section 53 on the cutting area 5 preferentially remove the chips generated by the threaded rod 4 and the fixture; the staff continues to screw up, and the wave washer carries out deformation through flat 10 and the hexagon nut 2 of filling up, wave washer upper and lower both ends further paste and lean on in flat 10 and the hexagon nut 2 of filling up to it is fixed to realize the installation.

The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concept is not limited to this embodiment, and any modification which uses the inventive concept is intended to be included within the scope of the appended claims.

Claims

1. The utility model provides a combination bolt of area cutting groove which characterized in that: the cutting device comprises a screw and a hexagon nut arranged at the upper end of the screw, wherein the screw is provided with a screw body and a threaded rod at the lower end of the screw body, a waveform gasket and a flat gasket are sequentially sleeved on the screw body from top to bottom, the screw body and the threaded rod are integrally formed, an external thread section is arranged on the periphery of the threaded rod, a cutting area is arranged at the lower section of the external thread section, a first cutting section, a second cutting section and a third cutting section are arranged on the cutting area, and the first cutting section, the second cutting section and the third cutting section are circumferentially arranged on the external thread section; the external thread section comprises a plurality of thread tooth forms, the thread tooth forms are arranged along the axial direction of the threaded rod, and the first cutting section, the second cutting section and the third cutting section are all arranged on the thread tooth forms of the cutting area;

the number of the first cutting sections is two, the number of the second cutting sections is one, and the number of the third cutting sections is one; the first oblique cutting section is provided with 3 first cutting grooves, the second cutting section is provided with 3 first cutting grooves and one second cutting groove, the third cutting section is provided with two first cutting grooves and one third cutting groove, and each first cutting groove, each second cutting groove and each third cutting groove respectively correspond to one thread profile; the thread profile is provided with a driving thread profile, and a first cutting groove on the first oblique cutting section, a second cutting groove on the second cutting section and a third cutting groove on the third cutting section are all arranged on the driving thread profile;

the driving thread profile comprises a first tooth bottom and a first tooth top, and a first cutting groove, a second cutting groove and a third cutting groove on the driving thread profile have the same grooving mode and are all opened from the first tooth top to the first tooth bottom;

the thread tooth type body comprises a second tooth bottom and a second tooth top, and the first cutting grooves on the first cutting section, the second cutting section and the third cutting section are all opened from the second tooth top to the second tooth bottom; the upper end of the threaded rod is provided with a limit thread profile, and the outer diameter of the limit thread profile is slightly larger than the diameter of the screw body.