CN206785822U - A kind of headed self-tapping self-drilling screw - Google Patents
A kind of headed self-tapping self-drilling screw Download PDFInfo
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- CN206785822U CN206785822U CN201720506038.5U CN201720506038U CN206785822U CN 206785822 U CN206785822 U CN 206785822U CN 201720506038 U CN201720506038 U CN 201720506038U CN 206785822 U CN206785822 U CN 206785822U
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- drilling
- drilling tail
- tail
- screw
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Abstract
The utility model discloses a kind of headed self-tapping self-drilling screw, includes screw rod, screw terminal and drilling tail.Drilling tail includes drilling tail knife, passage of debris, the medial surface of drilling tail knife is provided with curved blade between drilling tail knife, curved blade is set towards passage of debris direction；The end set that drilling tail is connected with screw rod has the sword wing, and the sword wing is arranged at the tail end of drilling tail knife lateral surface, and the sword wing is provided with the fracture texture for reducing sword wing structure intensity with the position that drilling tail knife is connected.It is provided with sword wing structure in drilling tail, is drilled by drilling tail during use, after drilling reaches certain depth, drilling area is enlarged by the sword wing, and play the chip removal effect of strength.When the sword wing is cut to steel plate, the cutting resistance increase of the sword wing, the sword wing can be fractureed by fracture texture and play a part of filling and locked.The utility model solve the problems, such as common drilling tail can not operation on the composite, also largely save the Complicated Flow for first punching and installing again, greatly improve productivity effect.
Description
Technical field
Screw device technical field is the utility model is related to, more specifically, more particularly to a kind of headed self-tapping self-drilling screw.
Background technology
Self-tapping screw is a kind of screw with drill bit, is constructed by special electric tool, drilling, tapping, fixation, lock
Tightly once complete.Self-tapping screw is mainly used in some connections and fixation compared with sheet member, color such as the connection of color steel and color steel
The connection etc. of steel plate and purlin, wall beam, its penetration capacity is usually no more than 6mm, and maximum is no more than 12mm.Self-tapping screw is usually sudden and violent
Outdoor is exposed at, itself there is very strong corrosion resistance.
Its structure of traditional self-tapping screw is：Include screw rod, screw terminal and drill bit, circular knife is set on drill bit
Sword, cut by the structure of spiral cutting edge (such as timber or plastics) softer to material, as bit, screw are whole
Body sinks, and cutting of the spiral cutting edge to material can form a drilling, and screw portion enters the interior shape between material of drilling
Into fixed connection structure.
In the prior art, the drill bit of common self-tapping screw, can be due to the hole that drills in operation on the sheet material of composite
Too small or chip removal not in time the problems such as cause drill bit to overheat and damage when shooting steel plate, lead to not fulfil assignment.
Utility model content
(1) technical problem
In summary, how to solve to drill smaller existing for traditional self-tapping screw and easily occur not completing from brill operation
The problem of, become those skilled in the art's urgent problem to be solved.
(2) technical scheme
The utility model provides a kind of headed self-tapping self-drilling screw, and the headed self-tapping self-drilling screw includes screw rod, in the screw rod
One end be provided with screw terminal, the other end of the screw rod is provided with drilling tail.Based on said structure design, the drilling tail includes
There is drilling tail knife, the drilling tail knife is provided with least two, and whole drilling tail knives is arranged at the end of the screw rod and surrounded
The axis of the screw rod is set at equal intervals, is arranged at intervals and formed with passage of debris between adjacent two drilling tail knives；
The lateral surface of the drilling tail knife is smooth arcwall face, and the medial surface of the drilling tail knife is provided with curved blade, institute
Curved blade is stated to set towards the passage of debris direction；
The drilling tail has the sword wing with the end set that the screw rod is connected, and the sword wing is arranged at the tail of drilling tail knife lateral surface
End, the sword wing are provided with the fracture texture for reducing the sword wing structure intensity with the position that the drilling tail knife is connected.
Preferably, the top of the drilling tail knife is provided with spiral point sword, the spiral shell that whole drilling tail knives is set
Revolve sharp sword and helically encircle structure.
Preferably, the outer rim of the sword wing rotates diameter of the diameter more than the screw rod for the track to be formed.
Preferably, the drilling tail knife is provided with two.
Preferably, it is used for the end that is connected with the drilling tail in the screw rod and is opened up on the lateral surface of the screw rod
There is chip extension slot, the chip extension slot connects with the passage of debris.
Preferably, the screw terminal is steel screw head, and the screw rod is steel screw rod, and the drilling tail is steel drilling tail.
Preferably, the screw terminal and the drilling tail are divided into the both ends of the screw rod and are integral with formula structure.
(3) beneficial effect
The utility model is provided with sword wing structure in drilling tail, is drilled by drilling tail during use, when drilling reaches certain
After depth, drilling area is enlarged by the sword wing, and plays the chip removal effect of strength.When the sword wing is cut to steel plate, the sword wing
Cutting resistance increase, the sword wing can be fractureed by fracture texture and play a part of filling and locked.Pass through said structure design, this practicality
It is new solve the problems, such as common drilling tail can not operation on the composite, also largely save the complicated stream for first punching and installing again
Journey, greatly improve productivity effect.
Brief description of the drawings
Fig. 1 is the left view of headed self-tapping self-drilling screw in the utility model embodiment；
Fig. 2 is the front view of headed self-tapping self-drilling screw in the utility model embodiment；
Fig. 3 is the mplifying structure schematic diagram at A in Fig. 1；
Fig. 4 is the mplifying structure schematic diagram at B in Fig. 2；
Fig. 5 is Fig. 4 top view；
In Fig. 1 into Fig. 5, the corresponding relation of component names and accompanying drawing number is：
Screw rod 1, screw terminal 2, drilling tail 3, drilling tail knife 4, passage of debris 5, curved blade 6,
The sword wing 7, spiral point sword 8, chip extension slot 9.
Embodiment
Embodiment of the present utility model is described in further detail with reference to the accompanying drawings and examples.Following examples
For illustrating the utility model, but can not be used for limiting the scope of the utility model.
In description of the present utility model, unless otherwise indicated, " multiple " are meant that two or more；Term
The orientation or position of the instruction such as " on ", " under ", "left", "right", " interior ", " outer ", " front end ", " rear end ", " head ", " afterbody " are closed
It is to be described based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplifying, rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as to limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for describing purpose, and can not
It is interpreted as indicating or implying relative importance.
, it is necessary to illustrate in description of the present utility model, unless otherwise clearly defined and limited, term " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary.For this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
Fig. 1 be refer to Fig. 5, wherein, Fig. 1 is the left view of headed self-tapping self-drilling screw in the utility model embodiment；Fig. 2 is
The front view of headed self-tapping self-drilling screw in the utility model embodiment；Fig. 3 is the mplifying structure schematic diagram at A in Fig. 1；Fig. 4 is Fig. 2
Mplifying structure schematic diagram at middle B；Fig. 5 is Fig. 4 top view.
The utility model provides a kind of new headed self-tapping self-drilling screw, and the headed self-tapping self-drilling screw is made up of three parts, point
Not Wei screw terminal 2, screw rod 1 and drilling tail 3, screw terminal 2 use countersunk head structure design, screw terminal 2 be arranged on screw rod 1 and with
1 integrated structure of screw rod, can so improve the bonding strength between screw terminal 2 and screw rod 1.
The utility model has carried out structure optimization to drilling tail 3：Drilling tail 3 is made up of at least two drilling tail knives 4, and drilling tail knife 4 is
Obform body structure, the lateral surface of drilling tail knife 4 is smooth arcwall face, and the front end face of drilling tail 3 for inner concave and is formed on the inside of drilling tail
Face, the front end face of drilling tail 3 set curved blade 6 with the position that the lateral surface of drilling tail 3 has a common boundary, and the breech face of drilling tail 3 is planar junction
Structure.
Drilling tail knife 4 is designed as multiple, and drilling tail knife 4 is set at equal intervals around the axis of screw rod 1, whole drilling tail knives 4 it is outer
Side can form the peripheral surface structure of a sub-elliptical.Between two adjacent drilling tail knives 4.The tail of preposition drilling tail knife 4
End face towards rearmounted drilling tail knife 4 front end face, and above-mentioned two end faces (breech face of preposition drilling tail knife 4 and after
The front end face for the drilling tail knife 4 put) between there is certain gap, so enable between two adjacent drilling tail knives formed with
Passage of debris 5.So, the curved blade 6 that rearmounted drilling tail knife 4 has can just be set towards passage of debris 5.
Based on the structure design, after drilling tail knife 4 and web contact rotation, curved blade 6 can be cut sheet material,
Cutting chip can be discharged by passage of debris 5.Drilling tail 3 is arranged on the end of screw rod 1, and the sword wing is provided with the lateral surface of drilling tail 3
7, the sword wing 7 is arranged on the end that drilling tail 3 is connected with screw rod 1, and when drilling tail 3 rotates perforate, the sword wing 7 has the function that reaming.
Based on said structure design, improvement of the present utility model is：1st, the design of lightening tail point of a knife has been used, i.e.,
The top of drilling tail knife 4 is provided with spiral point sword 8, the spiral point sword 8 that whole drilling tail knives 4 is set helically encircles structure；2、
The raised sword wing 7 is provided with drilling tail 3, sets the sword wing 7 to enable to form T in the profile of drilling tail 3 in drilling tail 3
Type structure, the sword wing 7 can play a part of good chip removal and reaming in boring procedure so that drilling tail 3 can be transported widely
Used in every field.
The utility model directly solve the problems, such as common drilling tail 3 can not operation on the composite, it is of the present utility model to make
With enable to drill, fixation settles at one go, its operating efficiency has obtained dramatically being lifted.
, can be too small due to drilling hole because normal drill bit is in operation on the sheet material of composite, or chip removal is not in time
The problems such as cause drill bit to overheat and damage when shooting steel plate, lead to not fulfil assignment.The utility model is set in drilling tail 3
The structure of the sword wing 7, drill by drilling tail 3 (spiral point sword 8) during use, after drilling reaches certain depth, carried out by the sword wing 7
Expand drilling area, and play the chip removal effect of strength, when the sword wing 7 is cut to steel plate, the cutting resistance increase of the sword wing 7, sword
The wing 7 can be fractureed by fracture texture and play a part of filling and locked.By test, said structure design directly solves common drilling tail
3 can not on the composite operation the problem of, also largely save the Complicated Flow for first punching and installing again, greatly improve production
Benefit.
Limit herein：The outer rim of the sword wing 7 is provided with sword wing cutting blade, track (the sword wing bite that the rotation of the sword wing 7 is formed
Tooth shape into track) diameter be more than screw rod 1 diameter.
Specifically, drilling tail knife 4 is provided with two.
Certainly, in another embodiment of the present utility model, drilling tail knife 4 is also designed to three.
Discharged for the ease of chip, the utility model in screw rod 1 be used for the end that be connected with drilling tail 3 and in screw rod 1 outside
Chip extension slot 9 is offered on side, chip extension slot 9 connects with passage of debris 5.
Specifically, screw terminal 2 is steel screw head, and screw rod 1 is steel screw rod, and drilling tail 3 is steel drilling tail；Screw terminal 2 with
And drilling tail 3 is divided into the both ends of screw rod 1 and is integral with formula structure.
Embodiment of the present utility model in order to example and description for the sake of and provide, and be not exhaustively or will
The utility model is limited to disclosed form.Many modifications and variations are aobvious and easy for the ordinary skill in the art
See.Selection and description embodiment are to more preferably illustrate principle and practical application of the present utility model, and make this area
Those of ordinary skill it will be appreciated that the utility model so as to designing the various embodiments with various modifications suitable for special-purpose.
Claims (7)
1. a kind of headed self-tapping self-drilling screw, including screw rod (1), one end of the screw rod is provided with screw terminal (2), in the spiral shell
The other end of bar is provided with drilling tail (3), it is characterised in that
The drilling tail includes drilling tail knife (4), and the drilling tail knife is provided with least two, and whole drilling tail knives is arranged at institute
State the end of screw rod and the axis around the screw rod is set at equal intervals, be arranged at intervals between adjacent two drilling tail knives,
And formed with passage of debris (5)；
The lateral surface of the drilling tail knife is smooth arcwall face, and the medial surface of the drilling tail knife is provided with curved blade (6), described
Curved blade is set towards the passage of debris direction；
The drilling tail has the sword wing (7) with the end set that the screw rod is connected, and the sword wing is arranged at the tail of drilling tail knife lateral surface
End, the sword wing are provided with the fracture texture for reducing the sword wing structure intensity with the position that the drilling tail knife is connected.
2. headed self-tapping self-drilling screw according to claim 1, it is characterised in that
The top of the drilling tail knife is provided with spiral point sword (8), the spiral point sword that whole drilling tail knives is set is in
Spiral encircles structure.
3. headed self-tapping self-drilling screw according to claim 1, it is characterised in that
The outer rim of the sword wing rotates diameter of the diameter more than the screw rod for the track to be formed.
4. headed self-tapping self-drilling screw according to claim 1, it is characterised in that
The drilling tail knife is provided with two.
5. according to the headed self-tapping self-drilling screw described in any one of Claims 1-4, it is characterised in that
It is used for the end that is connected with the drilling tail and in offering chip extension slot on the lateral surface of the screw rod in the screw rod
(9), the chip extension slot connects with the passage of debris.
6. headed self-tapping self-drilling screw according to claim 5, it is characterised in that
The screw terminal is steel screw head, and the screw rod is steel screw rod, and the drilling tail is steel drilling tail.
7. headed self-tapping self-drilling screw according to claim 6, it is characterised in that
The screw terminal and the drilling tail are divided into the both ends of the screw rod and are integral with formula structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506038.5U CN206785822U (en) | 2017-05-02 | 2017-05-02 | A kind of headed self-tapping self-drilling screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506038.5U CN206785822U (en) | 2017-05-02 | 2017-05-02 | A kind of headed self-tapping self-drilling screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785822U true CN206785822U (en) | 2017-12-22 |
Family
ID=60710718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720506038.5U Active CN206785822U (en) | 2017-05-02 | 2017-05-02 | A kind of headed self-tapping self-drilling screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206785822U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044474A (en) * | 2017-05-02 | 2017-08-15 | 上海宏挺紧固件制造有限公司 | A kind of headed self-tapping self-drilling screw |
| CN110242654A (en) * | 2019-06-13 | 2019-09-17 | 海盐宏诚精工科技有限公司 | A kind of countersunk head cross recess drilling tail nail winged |
| CN110360203A (en) * | 2019-06-17 | 2019-10-22 | 浙江凯耀照明股份有限公司 | A kind of convenient lamp mounting screw |
-
2017
- 2017-05-02 CN CN201720506038.5U patent/CN206785822U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044474A (en) * | 2017-05-02 | 2017-08-15 | 上海宏挺紧固件制造有限公司 | A kind of headed self-tapping self-drilling screw |
| CN110242654A (en) * | 2019-06-13 | 2019-09-17 | 海盐宏诚精工科技有限公司 | A kind of countersunk head cross recess drilling tail nail winged |
| CN110360203A (en) * | 2019-06-17 | 2019-10-22 | 浙江凯耀照明股份有限公司 | A kind of convenient lamp mounting screw |
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