CN103498860A - Anti-theft bolt - Google Patents
Anti-theft bolt Download PDFInfo
- Publication number
- CN103498860A CN103498860A CN201310426576.XA CN201310426576A CN103498860A CN 103498860 A CN103498860 A CN 103498860A CN 201310426576 A CN201310426576 A CN 201310426576A CN 103498860 A CN103498860 A CN 103498860A
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- China
- Prior art keywords
- bolt
- theft
- inclined hole
- double
- bolt head
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- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses an anti-theft bolt. The anti-theft bolt comprises a bolt head and a bolt stud. The bolt head comprises an upper surface, a lower surface, a lateral surface and inclined holes, wherein both the upper surface and the lower surface are round surfaces, the outer circle diameter of the upper surface is smaller than that of the lower surface, the upper surface is connected with the lower surface through the lateral surface, the openings of the inclined holes are formed in the lateral surface, and the inclined holes comprise a left inclined hole and a right inclined hole. The bolt stud comprises an upper smooth round column and a lower threaded column. Through the method of the anti-theft bolt, the bolt head adopts a double-theft-prevention design, and the anti-theft bolt can only be matched with a special spanner for screwing, thereby being good in anti-theft performance. In addition, the anti-theft bolt is simple in process, high in performance cost ratio, and suitable for various fastening occasions needing anti-theft bolts.
Description
Technical field
The present invention relates to the bolt design field, particularly relate to a kind of anti-theft bolt.
Background technique
Bolt is a kind of common retaining element, and normal conditions are the shaft-like object of taking the lead of attached threaded cylinder.The screwed cylinder of one end of bolt partly is called double-screw bolt, and for coordinating with nut or tapped hole, the other end is head, is called bolt head, for coordinating with spanner.Bolt generally is made of metal, but in special trade, such as the bolt that uses at special occasions such as electrical insulation or corrosion protections also has various non-metallic materials.
The appearance design of plain bolt and material be comparative maturity all, but due to the needs of producing and living, the various bolts with specific function have appearred in recent years, such as the bolt of anti-theft feature, but due to complex process, the more weak popularization of perplexing market of theftproof performance.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of anti-theft bolt, has the advantages that technique is simple, cost performance is high, theftproof performance is good.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of anti-theft bolt is provided, comprise: bolt head and double-screw bolt, described bolt head comprises upper surface, lower surface, side, inclined hole, described upper surface and lower surface are all rounded face, the outside diameter size of described upper surface is less than the outside diameter size of lower surface, between described upper surface and lower surface, by side, be connected, the opening of described inclined hole is positioned on side, described inclined hole comprises left side inclined hole and right side inclined hole, described double-screw bolt comprises top light cylinder and lower thread post.
In a preferred embodiment of the present invention, described left side inclined hole points to lower surface.
In a preferred embodiment of the present invention, described right side inclined hole points to upper surface.
In a preferred embodiment of the present invention, described bolt head and double-screw bolt are identical material, and the upper end of the lower surface of bolt head and double-screw bolt is connected.
The invention has the beneficial effects as follows: a kind of anti-theft bolt that the present invention points out, characteristics are mainly at head, at first the inclined-plane that the side of bolt head is several angle, allow general pliers and spanner set about nowhere, secondly the inclined hole of side lays respectively at the sensing in bolt head both sides and hole not on the connecting line of two inclined hole openings, the diameter of inclined hole is tiny, can only coordinate special spanner to rotate, and theftproof performance is good, technique is simple, cost performance is high.
The accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the sectional view of anti-theft bolt one preferred embodiment of the present invention;
Fig. 2 is the plan view of Fig. 1;
In accompanying drawing, the mark of each parts is as follows: 1, bolt head, 2, double-screw bolt, 11, upper surface, 12, lower surface, 13, side, 14, inclined hole.
Embodiment
Below will the technological scheme in the embodiment of the present invention be clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Embodiment based in the present invention, those of ordinary skills, not making all other embodiments that obtain under the creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 to Fig. 2, the embodiment of the present invention comprises:
A kind of anti-theft bolt, comprise: bolt head 1 and double-screw bolt 2, described bolt head comprises upper surface 11, lower surface 12, side 13, inclined hole 14, described upper surface 11 and lower surface 12 are all rounded face, the outside diameter size of described upper surface 11 is less than the outside diameter size of lower surface 12, between described upper surface 11 and lower surface 12, by side 13, be connected, the opening of described inclined hole 14 is positioned on side 13, described inclined hole 14 comprises left side inclined hole and right side inclined hole, and described double-screw bolt 2 comprises top light cylinder and lower thread post.
Inclined hole 14 is key points of anti-theft bolt of the present invention, at first the inclined hole 14 of both sides is different from the angle of horizontal plane, and the left side inclined hole points to lower surface, the right side inclined hole points to upper surface, on the neither connecting line of the opening at two inclined holes 14 of the sensing of two inclined holes 14, add aperture tiny, so general instrument has been difficult to Point of Strength, twist bolt head.
General bolt head is outer-hexagonal or interior hexagonal, even in the situation that there is no the respective model spanner, pliers also can be twisted bolt by the clamp stud head in the part situation.The 13Wei Yi inclined-plane, side formed between the upper surface 11 of the bolt head 1 of anti-theft nut of the present invention and lower surface 12, so the instrument of pliers and so on also is difficult to the clamp stud head, theftproof performance is good.
In sum, a kind of anti-theft bolt that the present invention points out, the design of bolt head double anti-theft, can only coordinate special spanner to twist, and theftproof performance is good, and technique is simple, cost performance is high, is applicable to the bolton place of various needs theftproof performances.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in scope of patent protection of the present invention.
Claims (4)
1. an anti-theft bolt, it is characterized in that, comprise: bolt head and double-screw bolt, described bolt head comprises upper surface, lower surface, side, inclined hole, described upper surface and lower surface are all rounded face, the outside diameter size of described upper surface is less than the outside diameter size of lower surface, between described upper surface and lower surface, by side, be connected, the opening of described inclined hole is positioned on side, described inclined hole comprises left side inclined hole and right side inclined hole, and described double-screw bolt comprises top light cylinder and lower thread post.
2. anti-theft bolt according to claim 1, is characterized in that, described left side inclined hole points to lower surface.
3. anti-theft bolt according to claim 1, is characterized in that, described right side inclined hole points to upper surface.
4. anti-theft bolt according to claim 1, is characterized in that, described bolt head and double-screw bolt are identical material, and the upper end of the lower surface of bolt head and double-screw bolt is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426576.XA CN103498860A (en) | 2013-09-18 | 2013-09-18 | Anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426576.XA CN103498860A (en) | 2013-09-18 | 2013-09-18 | Anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103498860A true CN103498860A (en) | 2014-01-08 |
Family
ID=49864100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310426576.XA Pending CN103498860A (en) | 2013-09-18 | 2013-09-18 | Anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103498860A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649045A (en) * | 2020-04-25 | 2020-09-11 | 上海宏挺紧固件制造有限公司 | Self-drilling screw and processing technology thereof |
-
2013
- 2013-09-18 CN CN201310426576.XA patent/CN103498860A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649045A (en) * | 2020-04-25 | 2020-09-11 | 上海宏挺紧固件制造有限公司 | Self-drilling screw and processing technology thereof |
| CN111649045B (en) * | 2020-04-25 | 2021-08-27 | 上海宏挺紧固件制造有限公司 | Self-drilling screw and processing technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140108 |