CN215409656U

CN215409656U - High-strength super-corrosion-resistant self-tapping screw

Info

Publication number: CN215409656U
Application number: CN202023302896.9U
Authority: CN
Inventors: 黄岳枝; 黄畅
Original assignee: Jiaxing Hebang Machinery Technology Co ltd
Current assignee: Jiaxing Hebang Machinery Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-01-04
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a high-strength super-corrosion-resistant self-tapping screw, which belongs to the technical field of screws and comprises a dismounting head and a screw head, wherein the bottom end of the screw head is fixedly connected with a protective edge, the bottom end of the protective edge is fixedly connected with a screw rod, the surface of the screw rod is provided with threads, the bottom end of the screw rod is fixedly connected with a self-tapping head, the surface of the self-tapping head is provided with tapping teeth, and the upper surface of the screw head is provided with a dismounting groove. And resources are effectively saved.

Description

High-strength super-corrosion-resistant self-tapping screw

Technical Field

The utility model relates to the technical field of screws, in particular to a high-strength super-corrosion-resistant self-tapping screw.

Background

Self-tapping screws are threaded fasteners that self-tap the mating female thread in a pre-drilled hole of a metallic or non-metallic material. Tapping screws are often used for connecting thin metal plates (steel plates, saw plates, etc.). During connection, a thread bottom hole is firstly formed on the connected piece, and then the tapping screw is screwed into the thread bottom hole of the connected piece. The thread surface of the self-tapping screw has higher hardness (more than or equal to 45HRC), and internal threads can be tapped in the thread bottom hole of the connected piece so as to form connection. The size, thread form, head form and tapping performance of the small-sized screw are almost unlimited in engineering application, but some screws still have some defects, such as the screw cap of the screw is installed, the screw cap does not have threads and can not tap into the inner part of a plate, and reaming is often needed, so that the working strength is enhanced.

Patent No. CN201510360001.1 discloses a self-tapping screw. The technical scheme adopted by the utility model is as follows: the utility model provides a self-tapping screw, includes the screw body, the screw body includes the screw rod of nut and its bottom, is equipped with the screw thread on the screw rod, the end of screw rod has the self-tapping end that is sharp taper, be taper cylinder section between nut and the screw rod, the tip diameter of taper cylinder section is the same with the diameter of screw rod, the main aspects diameter of taper cylinder section is less than the diameter of nut, and the periphery of taper cylinder section is equipped with a plurality of rectangular shape dogtooths, and the interval sets up between each rectangular shape dogtooth, be equipped with the recess on the screw rod between two screws that are close to the self-tapping end. The utility model has the advantages that: the self-tapping screw is simple and convenient to machine, simple to assemble and remarkable in anti-skidding effect, can effectively prevent the exposed part of the self-tapping screw from rusting, prolongs the service life of the screw, and avoids or reduces possible harm to human bodies caused by the exposed part of the self-tapping screw.

The self-tapping screw of the above-mentioned technology has the following disadvantages: 1. the self-tapping screw is easy to corrode in use, the overall structural strength of the self-tapping screw is reduced, the self-tapping screw is damaged, the service life of the automatic screw is shortened, meanwhile, a dismounting groove in the surface of the self-tapping screw head is easily ground flat in mounting and dismounting, the self-tapping screw head is inconvenient to use for many times, the using effect is poor, and therefore the high-strength super-corrosion-resistant self-tapping screw is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-strength super-corrosion-resistant self-tapping screw, which can effectively prevent corrosion in the use process, cannot be corroded after long-term use, prolongs the service life of the self-tapping screw, avoids the situation that a fastening piece is locked due to corrosion, is convenient to detach, saves time for equipment maintenance, reduces the labor intensity of workers, is convenient to mount and detach, can not cause the abrasion of the detached part of the self-tapping screw after being used for many times, can be used for many times, and effectively saves resources.

The specific technical scheme provided by the utility model is as follows:

the utility model provides a high-strength super-corrosion-resistant self-tapping screw which comprises a dismounting head and a screw head, wherein the bottom end of the screw head is fixedly connected with a protective edge, the bottom end of the protective edge is fixedly connected with a screw rod, the surface of the screw rod is provided with threads, the bottom end of the screw rod is fixedly connected with a self-tapping head, the surface of the self-tapping head is provided with tapping teeth, the upper surface of the screw head is provided with a dismounting groove, the right side inside the dismounting groove is fixedly connected with a clamping block, the bottom end inside the dismounting groove is fixedly connected with a plurality of clamping strips.

Optionally, the screw head, the protective edge, the screw rod and the self-tapping head are provided with corrosion-resistant layers.

Optionally, the surface of the bottom end of the dismounting head is provided with a first clamping groove and a second clamping groove, and the first clamping groove is provided with a plurality of clamping grooves.

Optionally, the bottom end of the protective edge is fixedly connected with anti-slip teeth.

Optionally, the corrosion-resistant layer is a nano-ceramic composite coating.

The utility model has the following beneficial effects:

the embodiment of the utility model provides a high-strength super-corrosion-resistant tapping screw which comprises the following components in parts by weight:

1. the automatic screw consists of a screw head, a protective edge, a screw rod and a self-tapping head, wherein the protective plate is fixed at the bottom end of the screw head, the screw rod is fixed at the protective edge, the self-tapping head is fixed at the bottom end of the screw rod, threads are fixed on the surface of the screw rod, tapping is arranged on the surface of the self-tapping head, the self-tapping screw can conveniently tap by the screw, the self-tapping effect of the self-tapping head can be effectively improved by tapping, the use is convenient, meanwhile, corrosion-resistant layers are arranged on the surfaces of the screw head, the protective edge, the screw rod and the self-tapping head, the corrosion-resistant layers are nano ceramic composite coatings, the nano ceramic composite coatings are one or a mixture of more of aluminum oxide, titanium oxide, chromium nitride and titanium nitride, the self-tapping screw has excellent corrosion resistance and extremely high hardness, and the self-tapping screw body is prevented from being contacted with the external environment in the use process through the nano ceramic protective layer, the service life of the self-tapping screw is prolonged, avoid self-tapping screw because of the corrosion is locked the emergence of the condition, make the fastener be convenient for demolish, the time has been practiced thrift for the maintenance of equipment, workman intensity of labour has been reduced, the dismantlement groove has been seted up to the overhead surface of screw simultaneously, dismantlement inslot internally mounted has fixture block and a plurality of card strip, dismantle first draw-in groove and second draw-in groove simultaneously, during installation and dismantlement self-tapping screw, insert the dismantlement head inside the dismantlement groove, make the card strip block advance inside the first draw-in groove, the fixture block advances inside the second draw-in groove, the wrench movement dismantlement head is convenient to be installed and is dismantled self-tapping screw, and repetitious usage can not cause self-tapping screw to dismantle the position wearing and tearing, make self-tapping screw can repetitious usage, effective resources are saved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a high-strength, ultra-corrosion-resistant tapping screw according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a corrosion-resistant layer of a high-strength ultra-corrosion-resistant tapping screw according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a detaching head of a high-strength super-corrosion-resistant tapping screw according to an embodiment of the present invention.

In the figure: 1. disassembling the head; 2. a screw head; 3. protecting edges; 4. a thread; 5. a screw shaft; 6. a tapping head; 7. tapping; 8. disassembling the groove; 9. a clamping block; 10. clamping the strip; 11. a corrosion-resistant layer; 12. a first card slot; 13. and a second card slot.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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.

A high-strength super corrosion-resistant tapping screw according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1 to 3, the high-strength, super-corrosion-resistant and self-tapping screw provided by the embodiment of the utility model comprises a detaching head 1 and a screw head 2, wherein a protective edge 3 is fixedly connected to the bottom end of the screw head 2, a screw rod 5 is fixedly connected to the bottom end of the protective edge 3, threads 4 are arranged on the surface of the screw rod 5, a self-tapping head 6 is fixedly connected to the bottom end of the screw rod 5, tapping teeth 7 are arranged on the surface of the self-tapping head 6, a detaching groove 8 is arranged on the upper surface of the screw head 2, a clamping block 9 is fixedly connected to the right side inside the detaching groove 8, a clamping strip 10 is fixedly connected to the bottom end inside the detaching groove 8, and a plurality of clamping strips 10 are provided.

The example, can effectively prevent corrosion through corrosion resistant layer 11 in the use, long-term use can not corroded, prolonged screwhead 2, safe edge 3, screw rod 5 and self-tapping head 6's life, avoid locking the emergence of the condition because of the corrosion, make the fastener be convenient for demolish, for the maintenance of equipment has practiced thrift the time, workman intensity of labour has been reduced, conveniently install and dismantle through screwhead 2 and dismantlement head 1 mutually supporting simultaneously, and repetitious usage can not cause self-tapping screw to dismantle the position wearing and tearing, make self-tapping screw can repetitious usage, effective resources are saved.

Referring to fig. 2, the surfaces of the screw head 2, the protective edge 3, the screw rod 5 and the self-tapping head 6 are provided with corrosion-resistant layers 11.

In the example, the corrosion-resistant layer 11 prevents the self-tapping screw body from contacting with the external environment in the using process, the service life of the self-tapping screw is prolonged, the self-tapping screw is prevented from being locked due to corrosion, the fastener is convenient to detach, the time is saved for overhauling equipment, and the labor intensity of workers is reduced.

Referring to fig. 3, the bottom surface of the detaching head 1 is provided with a first engaging groove 12 and a second engaging groove 13, and the first engaging groove 12 is plural.

The example, when installing and dismantling self-tapping screw, will dismantle head 1 and insert inside dismantling 8 grooves for inside the card strip 10 card advances first draw-in groove 12, inside the fixture block 9 card advances second draw-in groove 13, wrench movement dismantlement head 1 is convenient to be installed and is dismantled self-tapping screw, and repetitious usage can not cause self-tapping screw to dismantle head 1 wearing and tearing, makes self-tapping screw can repetitious usage, effective resources are saved.

Referring to fig. 1, the bottom end of the protective edge 3 is fixedly connected with anti-slip teeth.

The self-tapping screw is embedded into the fixing piece through the anti-skidding teeth, so that looseness caused by sliding of the self-tapping screw in use can be effectively avoided, and the using effect of the self-tapping screw is improved.

Referring to fig. 1, the corrosion-resistant layer 11 is a nano-ceramic composite coating.

Illustratively, the nano ceramic composite coating is made of one or a mixture of more of aluminum oxide, titanium oxide, chromium nitride and titanium nitride, and has excellent corrosion resistance and extremely high hardness, so that the corrosion-resistant layer 11 has good use effect.

When in use, the automatic screw consists of a screw head 2, a protective edge 3, a screw rod 5 and a self-tapping head 6, the protective plate is fixed at the bottom end of the screw head 2, the screw rod 5 is fixed at the end of the protective edge 3, the self-tapping head 6 is fixed at the bottom end of the screw rod 5, a thread 4 is fixed on the surface of the screw rod 5, a tapping 7 is arranged on the surface of the self-tapping head 6, the self-tapping screw can be conveniently tapped by the screw, the self-tapping effect of the self-tapping head 6 can be effectively improved by the tapping 7, the automatic screw is convenient to use, an anti-skidding tooth is fixed at the bottom end of the protective edge 3, the anti-skidding tooth is embedded into a fixing piece by the anti-skidding tooth, the self-tapping screw can be effectively prevented from sliding and loosening in use, the using effect of the self-tapping screw is improved, meanwhile, corrosion resistant layers 11 are arranged on the surfaces of the screw head 2, the protective edge 3, the screw rod 5 and the self-tapping head 6, and the corrosion resistant layers 11 are nano ceramic composite coatings, the nano ceramic coatings are aluminum oxide, One or a mixture of several of titanium oxide, chromium nitride and titanium nitride, has excellent corrosion resistance and extremely high hardness, avoids the self-tapping screw body from contacting with the external environment in the using process through a nano ceramic protective layer, prolongs the service life of the self-tapping screw, avoids the self-tapping screw from being locked due to corrosion, facilitates the dismounting of a fastener, saves time for the overhaul of equipment, reduces the labor intensity of workers, simultaneously, the upper surface of the screw head 2 is provided with a dismounting groove 8, the inside of the dismounting groove 8 is provided with a fixture block 9 and a plurality of fixture strips 10, the bottom end of the dismounting head 1 is provided with a first clamping groove 12 and a second clamping groove 13, when the self-tapping screw is mounted and dismounted, the dismounting head 1 is inserted into the dismounting groove 8, so that the fixture strips 10 are clamped into the first clamping groove 12, the fixture block 9 is clamped into the second clamping groove 13, and the dismounting head 1 is twisted to facilitate the mounting and dismounting of the self-tapping screw, and repeated use can not cause the wearing of the self-tapping screw disassembling head 1, so that the self-tapping screw can be used for multiple times, and the resources are effectively saved.

The utility model relates to a high-strength super-corrosion-resistant tapping screw, which comprises a disassembling head 1; 2. a screw head; 3. protecting edges; 4. a thread; 5. a screw shaft; 6. a tapping head; 7. tapping; 8. disassembling the groove; 9. a clamping block; 10. clamping the strip; 11. a corrosion-resistant layer; 12. a first card slot; 13. the second card slot and the components are all universal standard components or components known to those skilled in the art, and the structure and principle of the second card slot are known to those skilled in the art through technical manuals or through routine experiments.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the utility model. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. The utility model provides a super corrosion-resistant self-tapping screw of high strength, is including dismantling first (1) and screwhead (2), its characterized in that, screwhead (2) bottom fixedly connected with safe edge (3), safe edge (3) bottom fixedly connected with screw rod (5), screw rod (5) surface is provided with screw thread (4), screw rod (5) bottom fixedly connected with is from attacking first (6), attack tooth (7) have been seted up on first (6) surface from attacking, dismantle groove (8) have been seted up to screwhead (2) upper surface, dismantle inside right side fixedly connected with fixture block (9) in groove (8), dismantle inside bottom fixedly connected with card strip (10) in groove (8), and card strip (10) have a plurality ofly.

2. A high-strength ultra-corrosion-resistant tapping screw as claimed in claim 1, characterized in that the surfaces of the screw head (2), the bead (3), the screw shank (5) and the tapping head (6) are provided with a corrosion-resistant layer (11).

3. A high strength ultra corrosion resistant tapping screw as claimed in claim 1, wherein the bottom end surface of the detaching head (1) is provided with a first engaging groove (12) and a second engaging groove (13), and the first engaging groove (12) is plural.

4. A high strength ultra corrosion resistant tapping screw as claimed in claim 1 wherein anti-slip teeth are fixedly attached to the bottom end of the bead (3).

5. A high strength ultra corrosion resistant tapping screw as in claim 2 wherein the corrosion resistant layer (11) is a nano ceramic composite coating.