Novel screw

Abstract

The utility model relates to the technical field of screws, and discloses a novel screw which comprises a screw cap, a limiting groove, a limiting piece, a threaded body and a screw tip, one end of the threaded body is connected with the screw tip, the other end of the threaded body is connected with the limiting piece, the other end of the limiting piece is connected with the limiting groove, the other end of the limiting groove is connected with the screw cap, and the screw cap is connected with the limiting groove. The nut, the limiting groove, the limiting piece, the thread body and the screw tip are integrally formed. Through reasonable design of the screw technology, the screw cap, the limiting groove, the limiting piece, the threaded body and the screw tip are adopted, the screw can be prevented from falling off, and safety, corrosion resistance, abrasion resistance and the like are improved. The limiting groove is matched with the limiting piece, so that the screw can be prevented from loosening when the plastic product is softened or melted into the groove; a sharp screw tip is adopted, so that a user can enter a product in a labor-saving manner; and the corrosion-resistant and wear-resistant layer adopting the zinc-chromium alloy coating can enhance the durable use of the screw and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a new type of screw. Background Art

[0002] In life, screws are often used to fix two objects. Screws are usually called screws. Screws are tools that use the physical and mathematical principles of the circular rotation of the inclined surface of an object and the friction force to gradually tighten objects and mechanical parts. Screws are a general term for fasteners and a daily colloquialism. Screws are indispensable industrial necessities in daily life: such as very small screws used in cameras, glasses, clocks, electronics, etc.; general screws for televisions, electrical products, musical instruments, furniture, etc.; as for engineering, construction, and bridges, large screws and nuts are used; transportation equipment, airplanes, trams, cars, etc. use large and small screws. Screws have important tasks in industry. As long as there is industry on the earth, the function of screws will always be important. Screws are a common invention in people's production and life for thousands of years. According to the application field, it is the first invention of mankind. The main function of screws is to connect two workpieces together and play a fastening role. However, the screws on the market may become loose or fall off after long-term use, causing the two objects to separate, posing safety hazards, etc.

[0003] Therefore, in view of the above problems, the existing screw technology needs to be further improved. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems of existing screw technology such as falling off after long-term use, potential safety hazards, poor wear resistance and easy breakage; through the rational design of screw technology, the use of nuts, limit grooves, limit members, threaded bodies and screw tips can prevent the screws from falling off, improve safety and corrosion resistance, etc.

[0005] The technical solution of the utility model is as follows:

[0006] A new type of screw, the screw comprises: a nut, a limiting groove, a limiting piece, a threaded body and a screw tip, one end of the threaded body is connected to the screw tip, the other end of the threaded body is connected to the limiting piece, the other end of the limiting piece is connected to the limiting groove, the other end of the limiting groove is connected to the nut, the nut, limiting groove, limiting piece, threaded body and screw tip are integrally formed.

[0007] Furthermore, the nut, limiting groove, limiting member, threaded body and screw tip are all made of metal.

[0008] Furthermore, the outer surfaces of the nut, the limiting groove, the limiting member, the threaded body and the screw tip are all coated with an anti-corrosion and wear-resistant layer.

[0009] Furthermore, the anti-corrosion and wear-resistant layer is a zinc-chromium alloy coating.

[0010] Furthermore, the anti-corrosion and wear-resistant layer has a thickness of 0.5um-2um.

[0011] Furthermore, the screw tip is a conical screw tip, and the size of the bottom of the screw tip is equal to the size of one end of the threaded body.

[0012] Furthermore, the tip angle of the screw tip is set between 15° and 30°.

[0013] Furthermore, the threaded body is a truncated cone-shaped threaded body, the small-sized end of the threaded body is connected to the bottom of the screw tip, and the large-sized end of the threaded body is connected to the limiting member.

[0014] Furthermore, the diameter of the large-size end of the threaded body is not larger than the size of the limiting member.

[0015] Furthermore, the nut, limiting groove, limiting member, threaded body and screw tip are all circular in shape.

[0016] Furthermore, the diameter of the limiting groove is smaller than the diameter of the limiting member.

[0017] Furthermore, the limiting member and the limiting groove are connected with a smooth transition.

[0018] Furthermore, the diameter of the limiting groove is smaller than the diameter of the nut.

[0019] Furthermore, an arc-shaped groove is arranged inside the limiting groove.

[0020] Furthermore, the limiting groove is smoothly transitionally connected to the nut.

[0021] Furthermore, a hexagonal groove is provided in the middle of the nut, and the hexagonal groove is used to place a hexagonal wrench.

[0022] Beneficial Effects

[0023] The utility model adopts a reasonable design of screw technology, a nut, a limit groove, a limit piece, a threaded body and a screw tip, so as to prevent the screw from falling off, improve safety, corrosion resistance and wear resistance, etc. The limit groove and the limit piece are matched, and the plastic product is softened or melted into the groove, so as to prevent the screw from loosening, etc. The sharp screw tip can save effort to enter the product; the anti-corrosion and wear-resistant layer of the zinc-chromium alloy coating can enhance the durability of the screw, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a structural schematic diagram of a new type of screw.

[0025] Figure 2This is a schematic structural diagram of a new type of screw from another perspective of the utility model.

[0026] Figure numbers: 01, nut; 02, limiting groove; 03, limiting piece; 04, threaded body; 05, screw tip; 06, hexagonal groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 2 As shown, the utility model provides a new type of screw, which includes: a nut 01, a limiting groove 02, a limiting member 03, a threaded body 04 and a screw tip 05, wherein the nut 01, the limiting groove 02, the limiting member 03, the threaded body 04 and the screw tip 05 are all arranged in a circular shape, and the center lines of the nut 01, the limiting groove 02, the limiting member 03, the threaded body 04 and the screw tip 05 are all arranged to coincide with each other;

[0029] Among them, one end of the threaded body 04 is connected to the screw tip 05, the other end of the threaded body 04 is connected to the limiting member 03, the other end of the limiting member 03 is connected to the limiting groove 02, and the other end of the limiting groove 02 is connected to the nut 01, and the nut 01, the limiting groove 02, the limiting member 03, the threaded body 04 and the screw tip 05 are integrally formed; the nut 01, the limiting groove 02, the limiting member 03, the threaded body 04 and the screw tip 05 are all made of metal; the outer surfaces of the nut 01, the limiting groove 02, the limiting member 03, the threaded body 04 and the screw tip 05 are all coated with an anti-corrosion and wear-resistant layer, and the anti-corrosion and wear-resistant layer is a zinc-chromium alloy coating, and the thickness of the anti-corrosion and wear-resistant layer is 2um;

[0030] Among them, the screw tip 05 selects a conical screw tip, and the size of the bottom of the screw tip 05 is equal to the size of one end of the threaded body 04, and the tip angle of the screw tip 05 is set to 15°; the threaded body 04 selects a truncated cone threaded body, the small-sized end of the threaded body 04 is connected to the bottom of the screw tip 05, and the large-sized end of the threaded body 04 is connected to the limit member 03; the diameter of the large-sized end of the threaded body 04 is not larger than the size of the limit member 03; the diameter size of the limit groove 02 is smaller than the diameter size of the limit member 03; the limit member 03 and the limit groove 02 are smoothly transitioned and connected; the diameter size of the limit groove 02 is smaller than the diameter size of the nut 01; the limit groove 02 is set with an arc groove; the limit groove 02 is smoothly transitioned and connected to the nut 01; a hexagonal groove 06 is provided in the middle of the nut 01, and the hexagonal groove 06 is used to place a hexagonal wrench.

[0031] The specific implementation mode of the utility model is as follows: liquid metal (such as iron, etc.) is injected into the mold through a screw injection mold to form the screw in one piece; then the screw is used to fix two plastic products or plastic and other products, the screw tip first passes through the plastic product and then enters into another product, the screw is continuously rotated with a hexagonal wrench until it is tightened, and then the plastic is softened at the contact point between the plastic product and the screw, so that the softened plastic enters the limiting groove and stops softening, and the screw fixes the object to prevent the screw from loosening under long-term use, etc.; if disassembly is required, the screw can be screwed back with force, and the limiting piece of the screw will interfere and squeeze the plastic in the limiting groove. Since the plastic has great elasticity, the limiting piece can be allowed to come out, and then the screw can be screwed off.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of screw, characterized in that: The screw includes: a nut, a limiting groove, a limiting piece, a threaded body and a screw tip, one end of the threaded body is connected to the screw tip, the other end of the threaded body is connected to the limiting piece, the other end of the limiting piece is connected to the limiting groove, and the other end of the limiting groove is connected to the nut, and the nut, limiting groove, limiting piece, threaded body and screw tip are integrally formed.

2. A new type of screw according to claim 1, characterized in that: The nut, the limiting groove, the limiting piece, the threaded body and the screw tip are all made of metal.

3. A new type of screw according to claim 1, characterized in that: The screw tip is a conical screw tip, and the size of the bottom of the screw tip is equal to the size of one end of the threaded body.

4. A new type of screw according to claim 3, characterized in that: The threaded body is a truncated cone-shaped threaded body, the small-sized end of the threaded body is connected to the bottom of the screw tip, and the large-sized end of the threaded body is connected to the limiting member.

5. A new type of screw according to claim 4, characterized in that: The diameter of the large-size end of the threaded body is not larger than the size of the limiting member.

6. A new type of screw according to claim 1, characterized in that: The nut, limiting groove, limiting member, threaded body and screw tip are all circular in design.

7. A new type of screw according to claim 6, characterized in that: The diameter of the limiting groove is smaller than the diameter of the limiting member.

8. A new type of screw according to claim 7, characterized in that: The limiting member and the limiting groove are connected in a smooth transition.

9. A new type of screw according to claim 8, characterized in that: The diameter of the limiting groove is smaller than the diameter of the nut.

10. A new type of screw according to claim 9, characterized in that: The limiting groove is smoothly transitionally connected to the nut.

Images