CN210949453U

CN210949453U - Waterproof screw

Info

Publication number: CN210949453U
Application number: CN201921976512.6U
Authority: CN
Inventors: 匡仁垣
Original assignee: Suzhou Mingze Precision Hardware Co ltd
Current assignee: Suzhou Mingze Precision Hardware Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-07-07
Anticipated expiration: 2029-11-15

Abstract

The utility model relates to a waterproof screw, which comprises a screw main body, wherein the screw main body comprises a screw rod and a screw head arranged above the screw rod, the screw rod is cylindrical, a hand-twisting piece is arranged above the screw head, and the hand-twisting piece is cross-shaped; a first waterproof coating is arranged below the screw head, and a second waterproof coating is arranged in the threads of the screw rod. The utility model discloses a waterproof screw, because the first waterproof coating has been set up below the spiral shell head, set up the second waterproof coating on the screw rod, has avoided the part inside to wet, has increased the life of machine part; furthermore, a hand screwing piece is arranged above the screw head, so that the screw rod can be loosened by directly screwing the hand screwing piece by hand, and the screw head is convenient to disassemble.

Description

Waterproof screw

Technical Field

The utility model relates to a screw field especially relates to a waterproof screw.

Background

Screws (screws) are commonly used in machinery, electrical equipment, buildings, etc., and are generally made of metal or plastic, and are cylindrical, and grooves with concave and convex surfaces are called threads (screws). The primary function of the screw is to engage two objects or to fix the position of an object.

The existing screw has no waterproof coating, has poor waterproof performance, is easy to damp and damage the inside of a machine connected with the screw, and reduces the service life of the machine; meanwhile, the existing screw is generally provided with a linear or cross-shaped groove above the screw head, and the screw is screwed by a screwdriver, so that the screw is difficult to disassemble without the screwdriver.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a waterproof screw that waterproof performance is good.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a waterproof screw, which comprises a screw main body, wherein the screw main body comprises a screw rod and a screw head arranged above the screw rod, and a hand-twisting piece is arranged above the screw head and is in a cross shape; a first waterproof coating is arranged below the screw head, and a second waterproof coating is arranged in the threads of the screw rod.

Further, the first waterproof coating and the second waterproof coating are both specifically acrylic acid or asphalt.

Furthermore, the screw head is in a polygonal shape in the circumferential direction and can be screwed by a bayonet wrench.

Further, a fixing column is connected to the lower portion of the stud, and a groove is formed in the fixing column along the circumferential direction of the fixing column.

Further, the bottom of the fixed column extends with a guide strip.

Further, the screw main body, the hand screwing piece, the fixing column and the guide strip are integrally formed.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses a waterproof screw because spiral shell head below has set up first waterproof coating, has set up second waterproof coating on the screw rod, has avoided the part inside to wet, has increased machine parts's life.

Furthermore, a hand screwing piece is arranged above the screw head, so that the screw rod can be loosened by directly screwing the hand screwing piece by hand, and the screw head is convenient to disassemble.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic view of a waterproof screw according to an embodiment of the present invention.

Wherein the reference numerals are as follows:

1. a screw; 2. a screw head; 3. manually twisting the piece; 4. a first water-resistant coating; 5. a groove; 6. a guide strip; 7. and (5) fixing the column.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The waterproof screw comprises a screw main body, wherein the screw main body comprises a screw rod 1 and a screw head 2 arranged above the screw rod 1, the stud is cylindrical, a hand screwing piece 3 is arranged above the screw head 2, and the hand screwing piece 3 is cross-shaped; the first waterproof coating 4 is coated below the screw head 2, and the second waterproof coating is coated in the screw thread of the screw rod 1.

The first waterproof coating 4 and the second waterproof coating are both specifically acrylic acid or asphalt; the waterproof film formed by curing the waterproof coating has certain extensibility, elastoplasticity, crack resistance, impermeability and weather resistance, and can play roles in waterproofing, seepage prevention and protection. Usually, the first component is connected to the second component through the screw, the lower end of the screw head 2 is provided with the first waterproof coating 4, and the second waterproof coating is arranged in the thread of the screw rod 1, so that the internal damp of the components connected through the screw rod 1 is avoided, and the service life of the machine component is prolonged. At the same time, the use of the first waterproof coating 4 and the second waterproof coating makes the connection of the first member and the second member more stable.

The periphery of the screw head 2 is polygonal for a bayonet wrench to screw, and is generally pentagonal or hexagonal; the hand screwing piece 3 is arranged above the screw head, and the hand screwing piece 3 can be directly screwed by hand to loosen the screw rod 1, so that the screw head is convenient to disassemble. Sometimes, however, the bolt is too hard to be screwed by the hand-operated element 3 above the screw head 2, and can be screwed by using a bayonet wrench and then unscrewed by the hand-operated element 3.

A fixing column 7 is connected below the screw rod 1, a groove 5 is formed in the fixing column 7 along the circumferential direction of the fixing column, and the outer diameter of the fixing column 7 is equal to that of the screw rod 1; the bottom of the fixed column 7 extends to form a guide strip 6, the guide strip 6 is cuboid, and the outer diameter of the guide strip 6 is smaller than the outer diameters of the fixed column 7 and the screw rod 1. In the embodiment, the fixing column 7 is further connected with a third part, the third part is internally provided with a guide hole matched with the groove 5, a protrusion and a guide hole matched with the guide post, after the first part is connected with the second part, the fixing column 7 penetrates out of the second part, the guide strip 6 at the bottom of the fixing column 7 penetrates into the third part to play a role in guiding, the protrusion of the third part is clamped with the groove 5 on the fixing column 7, and the third part can be of a two-half structure; thus completing the threaded connection of the first and second parts, the third part being connected to the second part by means of the fixing posts 7 and the guide strips 6.

Hand is twisted piece 3, screw main part, fixed column 7 and gib block 6 integrated into one piece, the spiral shell head 2 the screw rod 1 hand is twisted piece 3, fixed column 7 and gib block 6 coaxial setting.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a waterproof screw, includes the screw main part, the screw main part includes screw rod and sets up the spiral shell head in the screw rod top, its characterized in that: a hand screwing piece is arranged above the screw head and is in a cross shape; a first waterproof coating is arranged below the screw head, and a second waterproof coating is arranged in the threads of the screw rod.

2. The waterproof screw according to claim 1, characterized in that: the first waterproof coating and the second waterproof coating are both specifically acrylic acid or asphalt.

3. The waterproof screw according to claim 1, characterized in that: the screw head is polygonal along the circumference and can be screwed by a bayonet wrench.

4. The waterproof screw according to claim 1, characterized in that: the lower part of the screw rod is connected with a fixing column, and the fixing column is provided with a groove along the circumferential direction of the fixing column.

5. The waterproofing screw according to claim 4, wherein: and the bottom of the fixed column extends to form a guide strip.

6. The waterproof screw of claim 5, wherein: the screw main body, the hand screwing piece, the fixing column and the guide strip are integrally formed.