CN201843889U - Guardrail anti-theft bolt and dedicated tool - Google Patents
Guardrail anti-theft bolt and dedicated tool Download PDFInfo
- Publication number
- CN201843889U CN201843889U CN2010202439519U CN201020243951U CN201843889U CN 201843889 U CN201843889 U CN 201843889U CN 2010202439519 U CN2010202439519 U CN 2010202439519U CN 201020243951 U CN201020243951 U CN 201020243951U CN 201843889 U CN201843889 U CN 201843889U
- Authority
- CN
- China
- Prior art keywords
- bolt
- nut
- guardrail
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The utility model relates to an anti-theft bolt and a dedicated tool for opening the anti-theft bolt. The anti-theft bolt comprises a bolt and a nut matched with the bolt, wherein the contact surface of the nut and a guardrail is embedded with an embedded part embedded a guardrail hole. The dedicated tool comprises a dedicated nut and a dedicated bolt, wherein the dedicated but is internally provided with a large part and a small part, the spiral diameters of the large part and the small part are different, the thread of the large part corresponds to the bolt, and the thread of the small part corresponds to the dedicated bolt. In the utility model, the nut is embedded in the guardrail hole so that the nut can not be screwed out, and the bolt disclosed by the utility model has good anti-theft property, and can be opened only by the dedicated tool provided by the utility model.
Description
Technical field
The utility model relates to a kind of anti-theft bolt and opens the special tool of anti-theft bolt.
Background technique
The guardrail of expressway passes through bolt, because existing bolt theftproof performance is unreliable, the normal stolen phenomenon of guardrail that takes place, a lot of for this reason bolt production firms have designed diversified anti-theft bolt, structure is different, characteristics are respectively arranged, though more traditional bolt has certain anti-theft effect, the complex structure that has, the theftproof performance that can not dismantle, have that has are not good.
The model utility content
The utility model is at above-mentioned defective, and purpose is to provide a kind of simple in structure, detachable and guardrail with good theftproof performance with anti-theft bolt and special tool.
The technical solution of the utility model is: the utility model comprises bolt and the nut that is used with bolt, and the face that nut contacts with guardrail is provided with the Embedded Division that embeds in the guardrail hole.
Special tool comprises specialized nut and special bolt, establishes spiral shell footpath different big portion and little portion in the specialized nut, big portion's screw thread and bolt correspondence, little screw thread and special bolt correspondence.
The utility model has the advantages that: the utility model embeds nut in the guardrail hole, and nut can not be back-outed, and makes bolt of the present utility model have good theftproof performance, has only the special tool that provides by the utility model it could be opened.
Description of drawings
Fig. 1 is the structural representation of the utility model anti-theft bolt
Fig. 2 is the structural representation of bolt
1 is that bolt, 2 is that Embedded Division, 3 is that nut, 4 is that specialized nut, 5 is special bolt among the figure.
Embodiment
During the utility model assembling, the Embedded Division of nut 3 is put into the guardrail hole, Embedded Division 2 has certain altitude, then bolt 1 is passed guardrail hole and nut 3, turns bolt 1, and is until nut 3 and bolt 1 that guardrail is fastening.
During dismounting, as directly turning nut 3, because Embedded Division 3 and guardrail hole interfere, so nut 3 is very difficult released; This moment, the big portion with specialized nut 4 pierced into bolt 1, and special bolt 5 penetrates from the little portion of specialized nut 4, and special bolt 5 and bolt 1 come in contact, and turn special bolt 5, and bolt 1 is screwed out in the guardrail hole, realized the dismounting of bolt 1.
Claims (2)
1. guardrail anti-theft bolt, comprise bolt and with the nut that bolt is used, it is characterized in that the face that nut contacts with guardrail is provided with the Embedded Division that embeds in the guardrail hole.
2. a special tool of opening the described anti-theft bolt of claim 1 is characterized in that, comprises specialized nut and special bolt, establishes spiral shell footpath different big portion and little portion in the specialized nut, big portion's screw thread and bolt correspondence, little screw thread and special bolt correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202439519U CN201843889U (en) | 2010-06-30 | 2010-06-30 | Guardrail anti-theft bolt and dedicated tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202439519U CN201843889U (en) | 2010-06-30 | 2010-06-30 | Guardrail anti-theft bolt and dedicated tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843889U true CN201843889U (en) | 2011-05-25 |
Family
ID=44038781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202439519U Expired - Fee Related CN201843889U (en) | 2010-06-30 | 2010-06-30 | Guardrail anti-theft bolt and dedicated tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843889U (en) |
-
2010
- 2010-06-30 CN CN2010202439519U patent/CN201843889U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201843889U (en) | Guardrail anti-theft bolt and dedicated tool | |
| CN205769725U (en) | A kind of bicycle parking rack of band lock | |
| CN201395766Y (en) | Shearing resistant lead core rubber support | |
| CN102312901A (en) | Anti-theft bolt for guard rail and special tool | |
| CN201622080U (en) | Automobile test tool rotating device | |
| CN101787699B (en) | Bolt fastening structure of pipe die | |
| CN201705914U (en) | Combination piston | |
| CN202348932U (en) | Fastening part with anti-theft function | |
| CN201560647U (en) | Theftproof lock for vehicle | |
| CN201902426U (en) | Screw rod | |
| CN202656982U (en) | Structure for connecting grating wisp and front grating main body of electric bicycle | |
| CN203948423U (en) | Large-size machine is used retainer nut | |
| CN203115304U (en) | 8-shaped buckle | |
| CN202624447U (en) | Integrated bicycle lock | |
| CN201292803Y (en) | Cam screw mounting structure of adjustable packer | |
| CN202391923U (en) | Anti-theft fastener | |
| CN202888473U (en) | Wiring device | |
| CN201498429U (en) | Connection fixing structure of circuit breaker insulation pull rod | |
| CN202391889U (en) | Expansion bolt | |
| CN201812875U (en) | Terminal block for lead-acid storage battery | |
| CN201627543U (en) | Quick joint of tie rod | |
| CN201448342U (en) | Rolling needle type anti-theft screw bolt | |
| CN2861593Y (en) | Easy-to-mount drawing prevention anti-theft nut | |
| CN201050538Y (en) | Theft-proof screw bolt | |
| CN203690520U (en) | Quick-detachable lead connector |
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: 20110525 Termination date: 20130630 |