CN203770343U - Manually mounted and detached backing-up screw - Google Patents

Manually mounted and detached backing-up screw Download PDF

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Publication number
CN203770343U
CN203770343U CN201420194788.XU CN201420194788U CN203770343U CN 203770343 U CN203770343 U CN 203770343U CN 201420194788 U CN201420194788 U CN 201420194788U CN 203770343 U CN203770343 U CN 203770343U
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China
Prior art keywords
screw
head
manually
screw head
passage
Prior art date
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Application number
CN201420194788.XU
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Chinese (zh)
Inventor
李本红
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Foshan Polytechnic
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Foshan Polytechnic
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Priority to CN201420194788.XU priority Critical patent/CN203770343U/en
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Publication of CN203770343U publication Critical patent/CN203770343U/en
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Abstract

The utility model discloses a manually mounted and detached backing-up screw, which comprises a screw body, a threaded part (1) formed on the screw body, a screw rod part (2) and a screw head (3), and is characterized in that a chip discharging channel (4) is formed in the screw body; a hollow twisting handle (5) is arranged on the screw head (3); stabs (6) are further arranged on the lower part of the screw head (3); the threaded part (1), the screw rod part (2) and the screw head (3) pass through the chip discharging channel (4) in sequence, and are communicated with the hollow cavity of the twisting handle (5). Compared with the prior art, the manually mounted and detached backing-up screw has the advantages that mounting and detachment of screws can be realized manually without using other external tools such as screwdrivers, screws are prevented from becoming loose after being tightened, and raise dust is not produced during tightening of screws.

Description

A kind of manual installation dismounting backing-up screw
Technical field
The utility model relates to fastening by devices field, relates in particular to a kind of dismounting of the manual installation without instrument backing-up screw.
Background technique
Screw is a kind of very common fastening device of using, yet conventional screw still exists following defects at present: 1) must object is fixed on the fixtures such as wall with instruments such as hammer, screw-drivers; Actual fixedly time, according to the difference of screw model, also need the screw-driver of special configuration respective model, for installing and using of screw brought very big inconvenience.2) at screw, be screwed in the process of the fixtures such as wall, due to the squeezing action of wall powder chip, the moment of torsion dynamics of more backward tightening needs is larger; And chip is filled between screw and fixture, easily occur after making screw in the time of one section loosening.3) playing screw is inevitably to have the chip phenomenon that drops, and dropping arbitrarily of chip not only easily produces airborne dust, affects attractive in appearancely, and operator healthy is brought to impact, easily causes occupation disease.
Model utility content
For the defect existing in prior art, the utility model provide a kind of need be by other external application instruments such as screw-drivers, after screw-driving, be difficult for loosening, and while playing screw without the bolt structure of airborne dust.
For reaching above object, the utility model adopts following technological scheme.
A manual installation dismounting backing-up screw, comprises screw body, is molded over the helical thread portion on screw body, screw portion and screw head; It is characterized in that, on screw body, be provided with out bits passage, on screw head, be provided with the handle of turning round of hollow, described in go out to consider to be worth doing passage and helical thread portion, screw portion and screw head run through successively and be communicated with the hollow cavity of turning round handle.
As the further improvement of such scheme, in the bottom of screw head, be also provided with bur.
Further improvement as such scheme is provided with into bits hole on the sidewall that goes out to consider to be worth doing passage.
Compared with prior art, the beneficial effects of the utility model are: when screwing, directly use finger to rotate and turn round handle, without specialist tools such as hammer, screw-drivers, the installing/dismounting of screw is very convenient.Meanwhile, by setting out bits passage, the chip that while making screwing, extruding produces directly flows in the hollow cavity of turning round handle by going out to consider to be worth doing passage, effectively avoids the phenomenons such as bits, airborne dust, and the first-class rear surface of screw is clean and tidy, attractive in appearance.
Accompanying drawing explanation
Figure 1 shows that the manual installation dismounting backing-up screw embodiment's one that the utility model provides structural representation;
Figure 2 shows that the manual installation dismounting backing-up screw embodiment's two that the utility model provides structural representation.
Description of reference numerals:
1, helical thread portion, 2, screw portion, 3, screw head, 4, go out to consider to be worth doing passage, 5, turn round handle, 6, bur, 7, enter to consider to be worth doing hole.
Embodiment
For further setting forth essence of the present utility model, by reference to the accompanying drawings embodiment of the present utility model is described as follows.
Embodiment one
As shown in Figure 1, a kind of manual installation dismounting backing-up screw, comprises screw body, is molded over the helical thread portion 1 on screw body, screw portion 2 and screw head 3; It is characterized in that, be provided with out bits passage 4 on screw body, what on screw head 3, be provided with hollow turns round handle 5, described in go out to consider to be worth doing passage 4 and helical thread portion 1, screw portion 2 and screw head 3 run through successively and be communicated with the hollow cavity of turning round handle 5.
In fact during screw, directly use finger to rotate and turns round handle, without specialist tools such as hammer, screw-drivers, the installing/dismounting of screw is very convenient.Meanwhile, by setting out bits passage, the chip that while making screwing, extruding produces directly flows in the hollow cavity of turning round handle by going out to consider to be worth doing passage, effectively avoids the phenomenons such as bits, airborne dust, and the first-class rear surface of screw is clean and tidy, attractive in appearance.
Further preferably, in the bottom of screw head 3, be also provided with bur 6, when screw-driving is on the fixtures such as wall like this, bur 6 is stung tightly with wall surface, effectively prevents that screw from coming off because of vibrations.
Embodiment two
As shown in Figure 2, a kind of manual installation dismounting backing-up screw, comprises screw body, is molded over the helical thread portion 1 on screw body, screw portion 2 and screw head 3; It is characterized in that, be provided with out bits passage 4 on screw body, what on screw head 3, be provided with hollow turns round handle 5, described in go out to consider to be worth doing passage 4 and helical thread portion 1, screw portion 2 and screw head 3 run through successively and be communicated with the hollow cavity of turning round handle 5.
Manual installation knockout screw and embodiment one that the present embodiment provides are basically identical, and difference is, is provided with into bits hole 7 on the sidewall that goes out to consider to be worth doing passage 4, like this, even if a small amount of chip enters the helical thread portion of screw, also can flow out by entering to consider to be worth doing hole, while effectively preventing from playing screw, there are falling bits.
Above embodiment has been described in detail essence of the present utility model, but can not to protection domain of the present utility model, limit with this.Apparently, under the enlightenment of the utility model essence, the art those of ordinary skill also can carry out many improvement and modification, within it should be noted that these improvement and modification all drop on claim protection domain of the present utility model.

Claims (3)

1. a manual installation dismounting backing-up screw, comprises screw body, is molded over the helical thread portion (1) on screw body, screw portion (2) and screw head (3); It is characterized in that, on screw body, be provided with out bits passage (4), what on screw head (3), be provided with hollow turns round handle (5), described in go out to consider to be worth doing passage (4) and helical thread portion (1), screw portion (2) and screw head (3) run through successively and be communicated with the hollow cavity of turning round handle (5).
2. a kind of manual installation dismounting backing-up screw according to claim 1, is characterized in that, in the bottom of screw head (3), is also provided with bur (6).
3. a kind of manual installation dismounting backing-up screw according to claim 1, is characterized in that, is provided with into bits hole (7) on the sidewall that goes out to consider to be worth doing passage (4).
CN201420194788.XU 2014-04-21 2014-04-21 Manually mounted and detached backing-up screw Active CN203770343U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420194788.XU CN203770343U (en) 2014-04-21 2014-04-21 Manually mounted and detached backing-up screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420194788.XU CN203770343U (en) 2014-04-21 2014-04-21 Manually mounted and detached backing-up screw

Publications (1)

Publication Number Publication Date
CN203770343U true CN203770343U (en) 2014-08-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420194788.XU Active CN203770343U (en) 2014-04-21 2014-04-21 Manually mounted and detached backing-up screw

Country Status (1)

Country Link
CN (1) CN203770343U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104930032A (en) * 2015-06-12 2015-09-23 苏州纽东精密制造科技有限公司 Self-tapping antiskid screw
CN110410403A (en) * 2019-07-31 2019-11-05 嘉兴承泽五金有限公司 A kind of New self-tapping screw

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104930032A (en) * 2015-06-12 2015-09-23 苏州纽东精密制造科技有限公司 Self-tapping antiskid screw
CN110410403A (en) * 2019-07-31 2019-11-05 嘉兴承泽五金有限公司 A kind of New self-tapping screw

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