CN204591964U - A kind of anti-theft bolt - Google Patents
A kind of anti-theft bolt Download PDFInfo
- Publication number
- CN204591964U CN204591964U CN201520210810.XU CN201520210810U CN204591964U CN 204591964 U CN204591964 U CN 204591964U CN 201520210810 U CN201520210810 U CN 201520210810U CN 204591964 U CN204591964 U CN 204591964U
- Authority
- CN
- China
- Prior art keywords
- bolt
- closure cap
- nut
- bowl
- pad
- 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
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Abstract
A kind of anti-theft bolt, be made up of bowl-type pad (1), closure cap (2), elastic scheibe (3), trapezoidal nut (4), bolt (5), broadside pad (6), nut (9), its bowl-type pad (1) is circular inner concavity structure, and in it, center has the through hole corresponding with bolt (5) thread size; Closure cap (2) is circular inner concavity structure, and in circular ring limit, bore is hypotenuse mouth, has annular groove below circular inner face place hypotenuse mouth; Elastic scheibe (3) is cross section is circular ring opening circle; Trapezoidal nut (4) base is truncated conical shape, and top is six-sided nut.Anti-theft bolt structure of the present utility model is simple, convenient and practical, Security is high, good anti-theft effect.
Description
Technical field
The utility model relates to a kind of anti-theft bolt.
Background technique
Be fixedly connected with fastening piece as the one in machinery, bolt is widely used in all trades and professions.Although plain bolt has simple to operate, the feature of convenient disassembly, the larceny that it carries out to some lawless persons also brings conveniently, as long as namely these lawless persons common handling instrument easy to use just can be dismantled bolt.In order to address this problem, effectively prevent the larceny of lawless person, many bolts all devise some antitheft structures.Anti-theft bolt is widely used in the fields such as electric power, chemical industry, oil refining, valve, road and bridge, steel structure, mechanical fitting and communal facility.At present, on bolt, modal theft-prevention structure is that the employing of bolt head shape is abnormally-structured, mounts and dismounts with corresponding special tool.Domestic various anti-theft bolts all need matched special purpose tools substantially, or special middle transition sleeve pipe, and what have also additionally will increase pilfer band, to realize anti-theft feature.Cause the anti-theft bolt used in variant field and industry like this, because of by different manufacturer production, structure is totally different, causes supporting special tool to vary, and these kits significantly increase production, use and administration cost.Also make anti-theft bolt expand using scope further and receive restriction, thus limit the development of anti-theft bolt industry.Such as existing automobile license plate, generally installed by anti-theft bolt, bolt head after mounting adds aluminum alloy sealing cap again and stainless steel sealing cap comes antitheft, this structure is easy to be destroyed, car plate installation form can not fundamentally solve license-plate anti-theft problem, cause car plate often to be lost, make troubles to the trip of people.Therefore need a kind of not special instrument just can install, can industry-by-industry be practically applicable to, convenient and practical, Security is high, the anti-theft bolt of good anti-theft effect.
Summary of the invention
The purpose of this utility model is to provide that a kind of structure is simple, convenient and practical, Security is high, the anti-theft bolt of good anti-theft effect.
Anti-theft bolt of the present utility model is made up of bowl-type pad, closure cap, elastic scheibe, trapezoidal nut, bolt, broadside pad, nut.Its bowl-type pad is circular inner concavity structure, in bowl-type pad, center has the through hole corresponding with bolt thread size, closure cap is circular inner concavity structure, in its circular ring limit, bore is hypotenuse mouth, annular groove is had below circular inner face place hypotenuse mouth, elastic scheibe is cross section is circular ring opening circle, and trapezoidal nut base is truncated conical shape, and top is six-sided nut shape.
During installation in two kinds of situation: a kind of is that link is with installation tapped hole, during installation, broadside pad is enclosed within bolt bottom, be inserted in elastic scheibe successively again, trapezoidal nut and bowl-type pad, at this moment above-mentioned bolt assembly is aimed at link tapped hole to screw, closure cap is firmly detained from bolt head, elastic scheibe is subject to the extruding on closure cap internal orifice inclined-plane, there is again the supporting of trapezoidal nut step surface below, elastic scheibe inwardly shrinks and is sticked in the annular groove of closure cap, because broadside pad shelves have lived elastic scheibe movement upwards, pin closure cap, cover bolt head, because closure cap external shape is all cylindrical, freely can only rotate at the head of bolt, closure cap is under the fixation of elastic scheibe, there is again screening of the circular ring limit of bowl-type pad below, not easily pried open and taken off, therefore anti-theft bolt adopts general tool to be not easily removed, therefore can greatly improve its theftproof performance, prevent car plate from losing, and adopt elastic scheibe, circular closure cap opening's edge is provided with interior inclined-plane, make the assembling between circular closure cap and bolt easier, to be link with connected piece be all another kind of situation when through hole is connected, bolt is passed from link and connected piece through hole, put bowl-type pad successively, trapezoidal nut, elastic scheibe, broadside pad, to screw on nut, rely on double nut clamping bolt, buckle when closure cap again, elastic scheibe is subject to the extruding on closure cap internal orifice inclined-plane, there is again the supporting of trapezoidal nut step surface below, elastic scheibe inwardly shrinks and is sticked in the annular groove of closure cap, because broadside pad shelves have lived elastic scheibe movement upwards, pin closure cap, complete the installation of anti-theft bolt, if want to dismantle anti-theft bolt with usual manner, when the Hexagon spiral shell head exposed from bolt rotates, trapezoidal nut on bolt, broadside pad and nut, due to the principle that double nut is fastening, together rotate together with bolt, closure cap is fixed in bowl-type pad by elastic scheibe, be all circular outside closure cap and bowl-type pad, therefore be not easily disassembled.
Structure of the present utility model is simple, convenient and practical, Security is high, good anti-theft effect.If need dismounting, a ring annular groove to be processed on the external cylindrical surface of closure cap in advance in a pre-installation, utilize professional tool or draw horse just can carry out the dismounting of anti-theft bolt.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of installation form of the utility model;
Fig. 2 is the structural representation of the another kind of installation form of the utility model.
1, bowl-type pad 2, closure cap 3, elastic scheibe 4, trapezoidal nut 5, bolt
6, broadside pad 7, link 8, connected piece 9, nut
Embodiment
Embodiment 1:
Anti-theft bolt of the present utility model is made up of bowl-type pad (1), closure cap (2), elastic scheibe (3), trapezoidal nut (4), bolt (5), broadside pad (6), nut (9), for fixed connecting piece (7) and connected piece (8).
Bowl-type pad (1) is circular inner concavity structure, bowl-type pad (1) interior center has the through hole corresponding with bolt (5) thread size, closure cap (2) is circular inner concavity structure, in its circular ring limit, bore is hypotenuse mouth, annular groove is had below circular inner face place hypotenuse mouth, elastic scheibe (3) is cross section is circular ring opening circle, trapezoidal nut (4) base is truncated conical shape, and top is six-sided nut shape.
When link (7) is with installation tapped hole, during installation, broadside pad (6) is enclosed within bolt (5) bottom, be inserted in elastic scheibe (3) more successively, trapezoidal nut (4) and bowl-type pad (1), at this moment above-mentioned bolt (5) assembly alignment link tapped hole is screwed, closure cap (2) is firmly detained from bolt (5) head, elastic scheibe (3) is subject to the extruding on closure cap (2) internal orifice inclined-plane, there is again the supporting of trapezoidal nut (4) step surface below, elastic scheibe (3) inwardly shrinks and is sticked in the annular groove of closure cap (2), because broadside pad (6) shelves have lived elastic scheibe (3) movement upwards, pin closure cap (2), cover bolt (5) head, because closure cap (2) external shape is all cylindrical, freely can only rotate at the head of bolt (5), closure cap (2) is under the fixation of elastic scheibe (3), there is again screening of the circular ring limit of bowl-type pad (1) below, not easily pried open and taken off, therefore anti-theft bolt adopts general tool to be not easily removed, therefore can greatly improve its theftproof performance, prevent car plate from losing, and adopt elastic scheibe (3), circular closure cap (2) opening's edge is provided with interior inclined-plane, make the assembling between circular closure cap (2) and bolt (5) easier,
If need to dismantle anti-theft bolt, a ring annular groove to be processed on the external cylindrical surface of closure cap (2) in advance in a pre-installation, utilize professional tool or draw horse just can carry out the dismounting of anti-theft bolt.
Embodiment 2:
A kind of anti-theft bolt of the present utility model is made up of bowl-type pad (1), closure cap (2), elastic scheibe (3), trapezoidal nut (4), bolt (5), broadside pad (6), nut (9), for fixed connecting piece (7) and connected piece (8).
Bowl-type pad (1) is circular inner concavity structure, in pad, center has the through hole corresponding with bolt (5) thread size, closure cap (2) is circular inner concavity structure, in its circular ring limit, bore is hypotenuse mouth, annular groove is had below circular inner face place hypotenuse mouth, elastic scheibe (3) is cross section is circular ring opening circle, and trapezoidal nut (4) base is truncated conical shape, and top is six-sided nut shape.
Link (7) and connected piece (8) are all that through hole is when being connected, during installation, bolt (5) is passed from link (7) and connected piece (8) through hole, put bowl-type pad (1) more successively, trapezoidal nut (4), elastic scheibe (3), broadside pad (6), to screw on nut, rely on double nut clamping bolt, buckle when closure cap (2) again, elastic scheibe (3) is subject to the extruding on closure cap (2) internal orifice inclined-plane, there is again the supporting of trapezoidal nut (4) step surface below, elastic scheibe (3) inwardly shrinks and is sticked in the annular groove of closure cap (2), because broadside pad (6) shelves have lived elastic scheibe (3) movement upwards, pin closure cap (2), complete the installation of anti-theft bolt, if want to dismantle anti-theft bolt with usual manner, when the Hexagon spiral shell head exposed from bolt (5) rotates, trapezoidal nut (4) on bolt (), broadside pad (6) and nut (9), due to the principle that double nut is fastening, together rotate together with bolt (5), closure cap (2) is axially fixed in bowl-type pad (1) by elastic scheibe (3), closure cap (2) and bowl-type pad (1) outside are all circular, therefore be not easily disassembled.
If need to dismantle anti-theft bolt, a ring annular groove to be processed on the external cylindrical surface of closure cap (2) in advance in a pre-installation, utilize professional tool or draw horse just can carry out the dismounting of anti-theft bolt.
The utility model provides that a kind of structure is simple, convenient and practical, Security is high, the anti-theft bolt of good anti-theft effect.
Claims (1)
1. an anti-theft bolt, be made up of bowl-type pad (1), closure cap (2), elastic scheibe (3), trapezoidal nut (4), bolt (5), broadside pad (6), nut (9), it is characterized in that bowl-type pad (1) is for circular inner concavity structure, bowl-type pad (1) interior center has the through hole corresponding with bolt (5) thread size; Closure cap (2) is circular inner concavity structure, and in circular ring limit, bore is hypotenuse mouth, has annular groove below circular inner face place hypotenuse mouth; Elastic scheibe (3) is cross section is circular ring opening circle; Trapezoidal nut (4) base is truncated conical shape, and top is six-sided nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520210810.XU CN204591964U (en) | 2015-04-08 | 2015-04-08 | A kind of anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520210810.XU CN204591964U (en) | 2015-04-08 | 2015-04-08 | A kind of anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204591964U true CN204591964U (en) | 2015-08-26 |
Family
ID=53928120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520210810.XU Expired - Fee Related CN204591964U (en) | 2015-04-08 | 2015-04-08 | A kind of anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204591964U (en) |
-
2015
- 2015-04-08 CN CN201520210810.XU patent/CN204591964U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160408 |