CN220523016U - Self-drilling screw convenient to dismantle - Google Patents

Abstract

The utility model discloses a self-drilling screw convenient to disassemble, which comprises a screw head, a rod body and a self-drilling bit, wherein the rod body is arranged at the bottom of the screw head, the self-drilling bit is arranged at the bottom of the rod body, spiral threads are integrally formed on the rod body, a liquid leakage groove is formed in the top of the threads, the bottom of the liquid leakage groove is arc-shaped, a liquid leakage hole is formed in the top of the screw head, and the bottom of the liquid leakage hole is communicated with the liquid leakage groove. According to the utility model, through arranging the liquid leakage hole and the liquid leakage groove, lubricating oil can be conveniently injected into the rod body and the surfaces of the screw teeth when the self-drilling screw is disassembled, so that the self-drilling screw can be disassembled more conveniently; through setting up the rubber pad, when dismantling the brill tail screw, can weaken the damage to the brill tail screw when the dynamics is too big, prevent the rupture between screw head and the body of rod.

Description

Self-drilling screw convenient to dismantle

Technical Field

The utility model relates to the field of self-drilling screws, in particular to a self-drilling screw convenient to disassemble.

Background

The tail part of the self-drilling screw is in a self-drilling or pointed tail shape, auxiliary processing is not needed, and the self-drilling screw can be used for directly drilling, tapping and locking on setting materials and basic materials, so that the construction time is greatly saved. Compared with a common screw, the screw has high ductile pulling force and maintenance force, can not loosen even after being combined for a long time, and is simple to use, safely punch and tap and finish once. The color steel tile used for the steel structure can be also used for fixing the thin plate of a simple building.

Patent document CN218522914U, the date of its grant is 2023, 02 and 24. The application comprises a screw rod, wherein one end of the screw rod is provided with a drill bit, the other end of the screw rod is provided with a screw head, a gasket clung to the screw head is sleeved on the screw rod, a retainer ring surrounding the screw head is arranged on the end face of the gasket, which is away from the drill bit, a protective cover for covering the screw head is detachably connected on the gasket, a clamping groove for embedding the retainer ring is formed in a cover opening of the protective cover, and an imitation groove for embedding the screw head is formed in the protective cover; the slot wall of the clamping slot is provided with a limiting groove in a closed ring shape, the check ring is provided with a limiting protrusion matched with the limiting groove, and the limiting protrusion is embedded in the limiting groove. This brill tail screw is through external protective cover and packing ring realization detachable connection to prevent that the screw head from contacting with external air, play rust-resistant and delay the effect of corrosion, make the screw more convenient when next dismouting, whole function is perfect, and the practicality is strong.

According to the application, the problem that the existing self-drilling screw is difficult to disassemble in the use process is solved, lubricating oil is often used for lubricating in the past use experience, the self-drilling screw is helped to be disassembled, the screw heads of some self-drilling screws are large, and the screw heads are difficult to add the lubricating oil to the screw.

Disclosure of Invention

The utility model aims to provide a self-drilling screw convenient to detach, and by arranging a liquid leakage hole and a liquid leakage groove, lubricating oil can be conveniently injected into the surfaces of a rod body and a screw tooth when the self-drilling screw is detached, so that the self-drilling screw can be detached more conveniently.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a self-drilling screw for ease of disassembly, comprising: the drilling device comprises a screw head, a rod body and a drilling tail, wherein the rod body is arranged at the bottom of the screw head, the drilling tail is arranged at the bottom of the rod body, spiral threads are integrally formed on the rod body, a liquid leakage groove is formed in the top of the threads, the bottom of the liquid leakage groove is arc-shaped, a liquid leakage hole is formed in the top of the screw head, and the bottom of the liquid leakage hole is communicated with the liquid leakage groove.

As a preferable scheme of the utility model, the top of the screw head is provided with a top groove, and the liquid leakage hole is arranged in the top groove.

As a further preferable mode of the utility model, the top groove is of a funnel structure, and the edge of the top groove is inclined to the center of the liquid leakage hole.

As a preferable scheme of the utility model, the top of the liquid leakage hole is provided with a rubber plug.

As a further preferable mode of the utility model, the top of the rubber plug is provided with an elliptical cover.

As a preferable scheme of the utility model, the screw head is a hexagonal screw head.

As a preferable scheme of the utility model, a rubber pad is sleeved on the top of the rod body.

Compared with the prior art, the self-drilling screw convenient to detach has the following beneficial effects: according to the utility model, through arranging the liquid leakage hole and the liquid leakage groove, lubricating oil can be conveniently injected into the rod body and the surfaces of the screw teeth when the self-drilling screw is disassembled, so that the self-drilling screw can be disassembled more conveniently; through setting up the rubber pad, when dismantling the brill tail screw, can weaken the damage to the brill tail screw when the dynamics is too big, prevent the rupture between screw head and the body of rod.

Drawings

In order to more clearly illustrate the technical solutions of the inventive embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only examples of the inventive embodiments of the present utility model, and that other drawings can be obtained according to these drawings without the need of inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

fig. 2 is an enlarged view of a portion a of fig. 1;

FIG. 3 is a schematic cross-sectional view of an embodiment of the present utility model;

fig. 4 is an enlarged view of a portion B of fig. 3;

fig. 5 is an enlarged view of a portion C of fig. 3;

fig. 6 is a schematic top view of an embodiment of the present utility model.

Reference numerals: 10. a screw head; 11. a top groove; 12. a weeping hole; 13. a rubber stopper; 20. a rod body; 21. screw threads; 22. a liquid leakage groove; 30. drilling a tail; 40. and a rubber pad.

Detailed Description

In order to make the objects, technical solutions and advantages of the inventive embodiments of the present utility model more apparent, the inventive implementation routine will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present utility model.

In the description of the inventive embodiments, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the inventive embodiments and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the inventive embodiments.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "coupled" should be construed broadly, and may be, for example, fixedly coupled, integrally coupled, or detachably coupled; may be a communication between the interiors of two elements; either directly or indirectly through intermediaries, the specific meaning of the terms in the inventive embodiments of the present utility model will be understood by those skilled in the art in the specific case.

Referring to fig. 1-6, an easy-to-disassemble self-drilling screw according to an embodiment of the present utility model includes: the screw head 10, the body of rod 20 and the brill tail 30, the screw head 10 is the hexagonal screw head, the body of rod 20 is in the bottom of screw head 10, the top cover of body of rod 20 is equipped with rubber pad 40, when dismantling the brill tail screw, can weaken the harm to the brill tail screw when the dynamics is too big, prevent to break between screw head 10 and the body of rod 20, brill tail 30 is in the bottom of body of rod 20, integrated into one piece has heliciform screw tooth 21 on the body of rod 20, leak groove 22 has been seted up at the screw tooth 21 top, leak groove 22 bottom is the arc, increase passing diameter, even have the foreign matter also can guarantee the lubricating oil circulation, leak hole 12 has been seted up at the screw head 10 top, leak hole 12 bottom and leak groove 22 intercommunication, roof groove 11 has been seted up at the top of screw head 10, leak hole 12 is in roof groove 11, roof groove 11 is the funnel structure, the edge of roof groove 11 is to leak hole 12 central slope, make the lubricating oil flow direction leak hole 12 of pouring into roof groove 11, leak hole 12 top is equipped with rubber plug 13, prevent to have the drill way of plugging up the hole 12, leak hole 13 when needs to pour into, leak hole 13 has the rubber plug 13 to take out, the rubber plug 13 is equipped with the rubber plug 13, the rubber plug 13 is convenient for pulling out.

As shown in fig. 1 to 6, when the screw is required to be detached, the rubber plug 13 is pulled out from the weeping hole 12, lubricating oil is injected to the weeping hole 12, the lubricating oil flows into the weeping groove 22 along with the weeping hole 12, and the lubricating oil in the weeping groove 22 can be scattered on the surfaces of the rod body 20 and the screw teeth 21, so that the self-drilling screw can be detached more conveniently.

According to the self-drilling screw convenient to disassemble, through the arrangement of the liquid leakage hole 12 and the liquid leakage groove 22, lubricating oil can be conveniently injected into the surfaces of the rod body 20 and the screw teeth 21 when the self-drilling screw is disassembled, so that the self-drilling screw can be more conveniently disassembled; through setting up rubber pad 40, when dismantling the brill tail screw, can weaken the damage to the brill tail screw when the dynamics is too big, prevent the rupture between screw head 10 and the body of rod 20.

While the basic principles of the present utility model have been shown and described, the foregoing is provided by way of illustration of a preferred embodiment of the utility model, and not by way of limitation, the foregoing embodiment and description are merely illustrative of the principles of the utility model, and any modifications, equivalents, improvements or modifications not within the spirit and scope of the utility model should be included within the scope of the utility model.

Claims (7)

1. Self-drilling screw convenient to dismantle, its characterized in that includes: screw head (10), body of rod (20) and brill tail (30), body of rod (20) are in the bottom of screw head (10), brill tail (30) are in the bottom of body of rod (20), integrated into one piece has heliciform screw thread (21) on body of rod (20), drain groove (22) have been seted up at screw thread (21) top, drain groove (22) bottom is the arc, drain hole (12) have been seted up at screw head (10) top, drain hole (12) bottom with drain groove (22) intercommunication.

2. The self-drilling screw for facilitating disassembly according to claim 1, wherein: the top of the screw head (10) is provided with a top groove (11), and the liquid leakage hole (12) is arranged in the top groove (11).

3. The self-drilling screw for facilitating disassembly according to claim 2, wherein: the top groove (11) is of a funnel structure, and the edge of the top groove (11) is inclined towards the center of the liquid leakage hole (12).

4. The self-drilling screw for facilitating disassembly according to claim 1, wherein: a rubber plug (13) is arranged at the top of the liquid leakage hole (12).

5. The easy-to-disassemble self-drilling screw of claim 4, wherein: an elliptical cover is arranged at the top of the rubber plug (13).

6. The self-drilling screw for facilitating disassembly according to claim 1, wherein: the screw head (10) is a hexagonal screw head.

7. The self-drilling screw for facilitating disassembly according to claim 1, wherein: a rubber pad (40) is sleeved on the top of the rod body (20).