Improved flat taper drilling structure of drilling screw

Abstract

The utility model discloses an improved flat taper drilling structure of a self drilling screw, which belongs to the technical field of self drilling screws and comprises a screw body, the screw body comprises a screw rod, a screw head is mounted on the outer surface of the screw rod, grooves are annularly arranged on the outer surface of the screw head, guide grooves are annularly arranged on the outer surface of the screw rod, and the guide grooves are communicated with the screw rod. A groove is formed in the outer surface of the nail rod, a thread groove is formed in the outer surface of the nail rod, annularly-arranged reinforcing ribs are installed on the outer surface of the nail rod, and through cooperation of the nail rod, the nail head, the groove, the guide groove and the reinforcing ribs, chippings generated in the drilling process of the nail head can be smoothly discharged, so that the drilling efficiency of the nail head is greatly improved; according to the self-drilling screw, the overall strength of the screw body is greatly improved, a gasket, a spring, a rubber ring, a clamping block and a clamping groove are arranged, people can conveniently disassemble, assemble and replace the rubber ring, the overall stability of the self-drilling screw is greatly improved, and the situation that the self-drilling screw is loosened after being used for a long time is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drill screw technical field, specifically a kind of flat cone drill tail improvement structure of drill screw. BACKGROUND

[0002] Screw is the physical and mathematical principle using the bevel circular rotation and friction of object, gradually tightens the tool of machine parts, drill screw is the screw front end has self-tapping drill head, screw is the common invention of people's production and life in thousands of years, according to application field, it is the first invention of mankind, drill screw is the new invention of people in recent years, also called self-drilling screw, the tail of drill screw is in the form of drill tail or sharp tail, without auxiliary processing, can be directly drilled, tapped and locked on setting material, base material, greatly save construction time.

[0003] But the drillings of current drill screw are extruded in hole due to insufficient chip space and insufficient chip removal, leading to the collapse of the screw hole of the locked object due to the continuous generation of drillings and the pressure of the continuously screwed-in screw rod, therefore, the technical personnel in the art provide a kind of flat cone drill tail improvement structure of drill screw to solve the problems raised in the above background technology. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of flat cone drill tail improvement structure of drill screw to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of flat cone drill tail improvement structure of drill screw, including peg body, the peg body includes peg rod, the outer surface of the peg rod is equipped with peg head, the outer surface of the peg head is equipped with annularly arranged recess, the outer surface of the peg rod is equipped with annularly arranged material guide groove.

[0007] As a further scheme of the utility model: the outer surface of the peg rod is equipped with thread groove, the outer surface of the peg rod is equipped with annularly arranged reinforcing rib.

[0008] As a further scheme of the utility model: the outer surface of the peg body is equipped with peg cap, the outer surface of the peg cap is equipped with cross slot.

[0009] As a further scheme of the utility model: the outer surface of the peg body is equipped with gasket, the outer surface of the peg body is equipped with spring.

[0010] As a further scheme of the utility model: the outer surface of the peg body is equipped with rubber ring, the outer surface of the rubber ring is equipped with annularly arranged clamping block.

[0011] As a further scheme of the utility model: The outer surface of the nail cap is provided with annularly arranged clamping grooves, each clamping groove is matched with a clamping block.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The flat taper tail improvement structure of the drill screw, through cooperation of the nail rod, the nail head, the groove, the material guide groove and the reinforcing rib, can not only smoothly discharge the drillings generated by the nail head in the drilling process, thereby greatly increasing the drilling efficiency of the nail head, but also greatly increase the overall strength of the nail body, and the setting of the gasket, the spring, the rubber ring, the clamping block and the clamping groove can not only facilitate people to disassemble and replace the rubber ring, but also greatly increase the overall stability of the drill screw, preventing the drill screw from loosening after long-time use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a perspective view of the flat taper tail improvement structure of the drill screw;

[0015] Fig. 2 It is a top view of the flat taper tail improvement structure of the drill screw;

[0016] Fig. 3 It is a bottom view of the flat taper tail improvement structure of the drill screw;

[0017] Fig. 4 It is a front view of the nail body in the flat taper tail improvement structure of the drill screw;

[0018] Fig. 5 It is a top view of the nail body in the flat taper tail improvement structure of the drill screw.

[0019] In the drawing: 1, nail cap; 2, nail body; 201, nail rod; 202, nail head; 203, groove; 204, thread groove; 205, material guide groove; 206, reinforcing rib; 3, cross groove; 4, gasket; 5, spring; 6, rubber ring; 7, clamping groove; 8, clamping block. DETAILED DESCRIPTION

[0020] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0021] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0022] Please refer to Figs. 1-5 In the utility model embodiment, a flat cone tail improvement structure of a drill tail screw, including nail body 2, nail body 2 includes nail rod 201, the outer surface of nail rod 201 is provided with nail head 202, the outer surface of nail head 202 is provided with annularly arranged recess 203, the outer surface of nail rod 201 is provided with annularly arranged material guide groove 205, not only greatly increase the strength of nail body 2, and the debris generated in the drilling process of drill tail screw can be automatically discharged, thereby solving the problem that the debris generated in the drilling of the current drill tail screw is extruded in the hole due to insufficient chip space and insufficient chip removal, resulting in the cracking of the screw hole of the locked object due to the continuous generation of debris and the continuous screwing pressure of the screw rod body.

[0023] The outer surface of nail rod 201 is provided with screw groove 204, the outer surface of nail rod 201 is provided with annularly arranged reinforcing ribs 206, the outer surface of nail body 2 is provided with nail cap 1, the outer surface of nail cap 1 is provided with cross groove 3, not only greatly increase the strength of nail body 2, and people can use screwdriver to disassemble and assemble nail body 2 when nail cap 1 is damaged.

[0024] The outer surface of the nail body 2 is sleeved with the gasket 4, the outer surface of the nail body 2 is sleeved with the spring 5, the outer surface of the nail body 2 is sleeved with the rubber ring 6, the outer surface of the rubber ring 6 is provided with the annularly arranged clamping blocks 8, the outer surface of the nail cap 1 is provided with the annularly arranged clamping grooves 7, each clamping groove 7 is matched with the clamping block 8, not only can prevent the drill screw from loosening, but also can conveniently replace the rubber ring 6.

[0025] The working principle of the utility model is: first, people can respectively sleeve the gasket 4, spring 5 and rubber ring 6 on the outer surface of the nail body 2, the drill bit 202 in the process of drilling, the debris can be discharged through the recess 203 and the material guide groove 205, the setting of the reinforcing rib 206 can prevent the nail body 2 from bending or breaking under stress, the setting of the rubber ring 6, spring 5 and gasket 4 can prevent the drill screw from loosening after long-term use.

[0026] The above-mentioned is only the preferable specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, all should be covered in the protection scope of the utility model, for the skilled person in the art, obviously, the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiment should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the attached claims instead of the above-mentioned description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

[0027] In addition, it should be understood that, although the present specification is described according to the embodiments, not every embodiment contains only one independent technical scheme, the description mode of the specification is only for the sake of clarity, the skilled person in the art should regard the specification as a whole, and the technical scheme in each embodiment can also be combined to form other embodiments that the skilled person can understand.

Claims

1. A flat taper tail improvement structure of a drill tail screw comprising a shank (2), characterized in that, The nail body (2) comprises a nail rod (201), the outer surface of the nail rod (201) is provided with a nail head (202), the outer surface of the nail head (202) is provided with annularly arranged grooves (203), and the outer surface of the nail rod (201) is provided with annularly arranged material guide grooves (205).

2. The improved flat point of a drill tap according to claim 1, wherein The outer surface of the nail rod (201) is provided with a threaded groove (204), and the outer surface of the nail rod (201) is provided with annularly arranged reinforcing ribs (206).

3. The improved flat point of a drill tap according to claim 1, wherein The outer surface of the nail body (2) is provided with a nail cap (1), and the outer surface of the nail cap (1) is provided with a cross groove (3).

4. The improved flat point of a drill tap according to claim 1, wherein The outer surface of the nail body (2) is provided with a gasket (4), and the outer surface of the nail body (2) is provided with a spring (5).

5. The improved flat point of a drill tap according to claim 3, wherein The outer surface of the nail body (2) is provided with a rubber ring (6), and the outer surface of the rubber ring (6) is provided with annularly arranged clamping blocks (8).

6. The improved flat point of a drill tap according to claim 3, wherein The outer surface of the nail cap (1) is provided with annularly arranged clamping grooves (7), and each clamping groove (7) is matched with a clamping block (8).

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