CN202001462U - Manually detachable over-twisting prevention screw - Google Patents
Manually detachable over-twisting prevention screw Download PDFInfo
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- CN202001462U CN202001462U CN2011201078467U CN201120107846U CN202001462U CN 202001462 U CN202001462 U CN 202001462U CN 2011201078467 U CN2011201078467 U CN 2011201078467U CN 201120107846 U CN201120107846 U CN 201120107846U CN 202001462 U CN202001462 U CN 202001462U
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- screw
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- screw head
- head
- twists
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- 230000002265 prevention Effects 0.000 title abstract 3
- 238000000465 moulding Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The utility model relates to a manually detachable over-twisting prevention screw, which comprises a screw head part (1), a screw tail part (2) and a twisted-off object, wherein an external thread is shaped on the screw tail part (2); the twisted-off object is arranged on the upper end face of the screw head part (1); a cross-shaped slot (5) or a minus slot (6) is shaped on the upper end face of the twisted-off object, and the torque for twisting off the twisted-off object from the screw head part (1) is enabled to correspond to the torque for just screwing down the screw; a connecting hole (7) of an internal thread is shaped on the upper end face of the screw head part (1); an external thread matched with the internal thread is shaped at one end of the twisted-off object, which is connected with the screw head part (1); and a turning device (9) for facilitating the hand to hold to turn is arranged between the part of the twisted-off object, on which the external thread is shaped, and the easily broken part of the twisted-off object. The utility model provides the manually detachable over-twisting prevention screw which is capable of screwing out the residual part of the twisted-off object by hand.
Description
Technical field
The utility model relates to a kind of screw.
Background technique
A kind of screw is arranged in the prior art, comprise screw head, form externally threaded screw afterbody, and be arranged on described screw head the upper-end surface twist off thing, form cross recess or straight groove on the described upper-end surface that twists off thing, and to twist off the moment of torsion that thing twists off from described screw head suitable with the moment of torsion of tightening described screw just with described, the female attachment hole of upper-end surface moulding of described screw head, the described outside thread that forms on thing and the end that described screw head is connected with described screw-internal thread fit that twists off.In the prior art, twist off thing and screw head between for removably connecting, make the screw of the prior art repeatedly to utilize, but also have following shortcoming in actual use: 1, since the size of screw itself just not quite, and twist off thing is non-main body on the screw, therefore, also impossible setting is very big, and it is just shorter to twist off the part that remains in after thing twists off on the screw head, do not pass through instrument, be difficult to residual part be back-outed, therefore, use very inconvenience with hand.
The model utility content
For this reason, technical problem to be solved in the utility model is that screw of the prior art is after twisting off thing and twisting off, the part that remains on the screw head is very short, do not pass through instrument, be difficult to residual part to be back-outed and cause inconvenient problem with use, just can will twist off the anti-screw of turning round of the manual teardown that the residual part of thing back-outs by hand but provide a kind of with hand.
For solving the problems of the technologies described above, but the anti-screw of turning round of a kind of manual teardown of the present utility model, comprise screw head, form externally threaded screw afterbody, and be arranged on described screw head the upper-end surface twist off thing, form cross recess or straight groove on the described upper-end surface that twists off thing, and to twist off the moment of torsion that thing twists off from described screw head suitable with the moment of torsion of tightening described screw just with described, the female attachment hole of upper-end surface moulding of described screw head, the described outside thread that forms on thing and the end that described screw head is connected with described screw-internal thread fit that twists off, described twisting off between externally threaded part of forming of thing and the described easily broken part that twists off on the thing is provided with the slewing gear of being convenient to hold rotation.
But the anti-screw of turning round of described manual teardown, the described thing that twists off is by cylindrical head, the cylindrical midsection branch, slewing gear, and cylindrical tail portion formation, wherein, the diameter minimum that described cylindrical midsection is divided, and described outside thread is molded on the described cylindrical tail portion, and described slewing gear is arranged between described cylindrical midsection branch and the described cylindrical tail portion, and described cross recess or straight groove are molded over the upper-end surface of described cylindrical head.
But the anti-screw of turning round of described manual teardown also forms the groove that suitable screw-driver head stretches on the upper-end surface of described screw head.
But the anti-screw of turning round of described manual teardown, described slewing gear is a handwheel.
Technique scheme of the present utility model has the following advantages compared to existing technology, 1, in the utility model, twist off the externally threaded part of forming of thing and twist off between the easily broken part on the thing and be provided with the slewing gear of being convenient to hold rotation, twist off thing after easily broken part fracture, what remain in screw head is male end and the slewing gear that twists off thing, during dismounting,, can very easily male end be disassembled by hand twisting slewing gear.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
But Fig. 1 is the anti-sectional view of turning round screw of manual teardown of the present utility model;
But Fig. 2 is the anti-plan view of turning round the embodiment 1 of screw of manual teardown of the present utility model;
But Fig. 3 is the anti-plan view of turning round the embodiment 2 of screw of manual teardown of the present utility model.
Reference character is expressed as among the figure: 1-screw head, 2-screw afterbody, 3-cylindrical head, 4-cylindrical tail portion, 5-cross recess, 6-straight groove, 7-attachment hole, 8-cylindrical midsection branch, 9-slewing gear.
Embodiment
As shown in Figure 1 to Figure 3, but the anti-screw of turning round of 1 one kinds of manual teardown of present embodiment, comprise screw head 1, form externally threaded screw afterbody 2, and be arranged on described screw head 1 the upper-end surface twist off thing, form cross recess 5 or straight groove 6 on the described upper-end surface that twists off thing, and to twist off the moment of torsion that thing twists off from described screw head 1 suitable with the moment of torsion of tightening described screw just with described, the female attachment hole 7 of the upper-end surface moulding of described screw head 1, the described outside thread that forms on thing and the end that described screw head 1 is connected with described screw-internal thread fit that twists off, described twisting off between externally threaded part of forming of thing and the described easily broken part that twists off on the thing is provided with the slewing gear 9 of being convenient to hold rotation, at the described thing that twists off after the fracture of easily broken part, remain in the described disconnected and slewing gear 9 of outside thread that twists off thing that is of screw head, during dismounting, twist described slewing gear 9 by hand, can very easily very short male end be disassembled.The described thing that twists off is by cylindrical head 3, and cylindrical midsection divides 8, slewing gear 9, and cylindrical tail portion 4 formations, and wherein, described cylindrical midsection is divided 8 diameter minimum, is the described frangible portions that twists off on the thing.And described outside thread is molded on the described cylindrical tail portion 4, described slewing gear 9 be arranged on described cylindrical midsection divide 8 and described cylindrical tail portion 4 between, described cross recess 5 or straight groove 6 are molded over the upper-end surface of described cylindrical head 3.Also form on the upper-end surface of described screw head 1 and be fit to the groove that the screw-driver head stretches into.In the present embodiment, described slewing gear 9 is a handwheel.
Obviously, the foregoing description only is for example clearly is described, is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (4)
1. but the anti-screw of turning round of a manual teardown, comprise screw head (1), form externally threaded screw afterbody (2), and be arranged on described screw head (1) the upper-end surface twist off thing, form cross recess (5) or straight groove (6) on the described upper-end surface that twists off thing, and to twist off the moment of torsion that thing twists off from described screw head (1) suitable with the moment of torsion of tightening described screw just with described, the female attachment hole of upper-end surface moulding (7) of described screw head (1), the described outside thread that forms on thing and the end that described screw head (1) is connected with described screw-internal thread fit that twists off, it is characterized in that: described twisting off between externally threaded part of forming of thing and the described easily broken part that twists off on the thing is provided with the slewing gear (9) of being convenient to hold rotation.
2. but the anti-screw of turning round of manual teardown according to claim 1, it is characterized in that: the described thing that twists off is by cylindrical head (3), cylindrical midsection branch (8), slewing gear (9), and cylindrical tail portion (4) constitutes, wherein, the diameter minimum of described cylindrical midsection branch (8), described outside thread is molded on the described cylindrical tail portion (4), described slewing gear (9) is arranged between described cylindrical midsection branch (8) and the described cylindrical tail portion (4), and described cross recess (5) or straight groove (6) are molded over the upper-end surface of described cylindrical head (3).
3. but the anti-screw of turning round of manual teardown according to claim 1 and 2 is characterized in that: also form the groove that suitable screw-driver head stretches on the upper-end surface of described screw head (1).
4. but the anti-screw of turning round of manual teardown according to claim 1 and 2, it is characterized in that: described slewing gear (9) is a handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201078467U CN202001462U (en) | 2011-04-13 | 2011-04-13 | Manually detachable over-twisting prevention screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201078467U CN202001462U (en) | 2011-04-13 | 2011-04-13 | Manually detachable over-twisting prevention screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001462U true CN202001462U (en) | 2011-10-05 |
Family
ID=44704205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201078467U Expired - Fee Related CN202001462U (en) | 2011-04-13 | 2011-04-13 | Manually detachable over-twisting prevention screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001462U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162485A (en) * | 2011-04-13 | 2011-08-24 | 陈文才 | Anti-twisting screw |
| CN102168709A (en) * | 2011-04-13 | 2011-08-31 | 陈文才 | Over-twisting prevention screw capable of being dismounted manually |
| CN102788071A (en) * | 2011-04-13 | 2012-11-21 | 张洁 | Over-screwing prevention screw |
-
2011
- 2011-04-13 CN CN2011201078467U patent/CN202001462U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162485A (en) * | 2011-04-13 | 2011-08-24 | 陈文才 | Anti-twisting screw |
| CN102168709A (en) * | 2011-04-13 | 2011-08-31 | 陈文才 | Over-twisting prevention screw capable of being dismounted manually |
| CN102788071A (en) * | 2011-04-13 | 2012-11-21 | 张洁 | Over-screwing prevention screw |
| CN102168709B (en) * | 2011-04-13 | 2012-12-12 | 陈文才 | Over-twisting prevention screw capable of being dismounted manually |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20130413 |