CN206802043U - Loosing and theft preventing bolt - Google Patents
Loosing and theft preventing bolt Download PDFInfo
- Publication number
- CN206802043U CN206802043U CN201720600922.5U CN201720600922U CN206802043U CN 206802043 U CN206802043 U CN 206802043U CN 201720600922 U CN201720600922 U CN 201720600922U CN 206802043 U CN206802043 U CN 206802043U
- Authority
- CN
- China
- Prior art keywords
- bolt
- bolt head
- baffle plate
- diameter
- shank
- 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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- Burglar Alarm Systems (AREA)
Abstract
It the utility model is related to a kind of loosing and theft preventing bolt, including bolt head and shank of bolt, it is characterised in that：The transition position of the bolt head and shank of bolt is provided with circular positioning disk, the bolt head is that cross section uses round-corner transition between the column of equilateral triangle and the adjacent two sides of stud head, the bolt head top surface uses round-corner transition between adjacent two side of the equilateral triangle baffle plate that can be circumferentially rotated and baffle plate is provided with using rivet, the diameter of periphery where the diameter of periphery is less than the radiused apex of baffle plate where the center line coincidence of the bolt head and baffle plate and the radiused apex of bolt head；The shank of bolt includes oppositely oriented forward and backward thread segment, and the diameter of the preceding thread section is more than the diameter of rear thread section.Solve the problems, such as that existing bolt easily loosens, be quick detachable, its structure design is more reasonable, ensure that the reliability and security of connection, effectively prevent to loosen in vibration processes and is stolen with robber.
Description
Technical field
The structure design to bolt is the utility model is related to, particularly a kind of loosing and theft preventing bolt is widely applicable, especially suitable
For in long-distance transport pipes mouth of pipe quick plugging device disclosed in the B of CN 103953819.
Background technology
Bolt is a kind of very universal structural connection of application, in building construction, railroad bridge, mechanical engineering, traffic
The every field such as transport, electric power in information society, suffer from being widely applied.At present, the bolt head of most of bolt is regular hexagon, spiral shell
Diameter identical screw thread is disposed with tightening latch, this bolt is in the case of Long-term Vibration, it is easy to loose phenomenon occurs；And
And such bolt is easy to be removed, it is easy to criminal to be stolen or destroyed.As disclosed in the B of CN 103953819
Although the pretension anti-theft bolt of long-distance transport pipes mouth of pipe quick plugging device serves certain anti-theft effect, but in view of screw spiral shell at present
The update of the spanner of bolt, its anti-theft feature need to be improved.
The content of the invention
The purpose of this utility model is to provide for a kind of solving the problems, such as that existing bolt easily loosens, be quick detachable locking anti-
Bolt is stolen, its structure design is more reasonable, ensure that the reliability and security of connection, effectively prevent in vibration processes and loosen
Stolen with robber.
The technical solution of the utility model is：
A kind of loosing and theft preventing bolt, including bolt head and shank of bolt, it is characterised in that：The mistake of the bolt head and shank of bolt
Cross place and be provided with circular positioning disk, the bolt head is cross section in the column of equilateral triangle and the adjacent two sides of stud head
Between use round-corner transition, the bolt head top surface is provided with the equilateral triangle baffle plate that can be circumferentially rotated and baffle plate using rivet
Round-corner transition is used between adjacent two side, the center line of the bolt head and baffle plate overlaps and where the radiused apex of bolt head
The diameter of periphery where the diameter of periphery is less than the radiused apex of baffle plate；The shank of bolt includes oppositely oriented forward and backward
Thread segment, the diameter of the preceding thread section are more than the diameter of rear thread section.
Above-mentioned loosing and theft preventing bolt, when the radiused apex of the bolt head and baffle plate corresponds, the bolt head and
The straight line contour convergence of baffle plate.
Above-mentioned loosing and theft preventing bolt, escape is provided between the forward and backward thread segment of the shank of bolt.
Above-mentioned loosing and theft preventing bolt, the end face center of the bolt head are provided with rivet hole.
Above-mentioned loosing and theft preventing bolt, the circular positioning disk is between the end face of bolt head and circumference side using
Angle transition.
The beneficial effects of the utility model are：
1st, in use, using the preceding thread section of shank of bolt by prefastened object (the antitheft gland of such as plugging device and slip
Block) connection, the screw on nut positioning in the rear thread section of shank of bolt after pad is then set with, due to forward and backward thread segment rotation direction phase
Instead, then when screwing spiral head and carrying out dismounting action or vibrate, the preceding thread section of shank of bolt and the object of fastening gradually take off
From, but the nut in rear thread section will not loosen, and coordinate the object (sliding shoe) for preventing fastening to fall with pad on the contrary
Fall, realize the function of anticreep pine.
2nd, because the top surface of bolt head is provided with the equilateral triangle baffle plate that can be circumferentially rotated, and the circle of bolt head using rivet
The drift angle protrusion of the diameter of periphery where the diameter of periphery is less than the radiused apex of baffle plate where angular vertex, then baffle plate, it is existing
There is spanner to be only capable of flap shutter, can not rotating bolt head, could only be made by proprietary spanner through baffle plate test at bolt head
Shank of bolt rotates, it is achieved thereby that antitheft function.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 axial section；
Fig. 3 is Fig. 1 left view；
Fig. 4 is partial perspective view one of the present utility model；
Fig. 5 is partial perspective view two of the present utility model.
In figure：1. spiral shell before rivet, 2. baffle plates, 3. bolt heads, 301. rivet holes, 4. circular positioning disks, 5. shanks of bolt, 501.
Line section, 502. rear thread sections, 503. escapes.
Embodiment
As Figure 1-Figure 5, the loosing and theft preventing bolt, including bolt head 3 and shank of bolt 5, the bolt head 3 and shank of bolt
5 transition position is provided with circular positioning disk 4, and the bolt head 3 is cross section in the column of equilateral triangle and the phase of stud first 3
Round-corner transition is used between adjacent two sides, the end face center of the bolt head 3 is provided with rivet hole 301, the top surface of bolt head 3 profit
It is provided with rivet 1 between adjacent two side of the equilateral triangle baffle plate 2 that can be circumferentially rotated and baffle plate 2 and uses round-corner transition, institute
The diameter of periphery is less than the circle of baffle plate 2 where stating bolt head 3 and the center line coincidence of baffle plate 2 and the radiused apex of bolt head 3
The diameter of periphery where angular vertex, when the radiused apex of the bolt head 3 and baffle plate 2 corresponds, the bolt head 3 and gear
The straight line contour convergence of plate 2.The shank of bolt 5 includes oppositely oriented forward and backward thread segment 501,502, the preceding thread section
501 diameter is more than the diameter of rear thread section 502, and escape is provided between the forward and backward thread segment 501,502 of the shank of bolt 5
503.The circular positioning disk 4 utilizes chamfered transition between the end face of bolt head 3 and circumference side.
The present embodiment is replaced former exemplified by being applied to long-distance transport pipes mouth of pipe quick plugging device disclosed in the B of CN 103953819
Some pretension anti-theft bolts.In use, plugging device is pushed into steel pipe nozzle, using special spanner first according to diagonal manner to circle
All loosing and theft preventing bolts for blocking blind plate periphery carry out pretensioning operation, so as to drive all sliding shoes extruding O-rings, finally according to
The secondary O-ring for screwing loosing and theft preventing bolt and making to be deformed is combined closely with blind plate and steel pipe inner wall, so as to realize that the mouth of pipe seals
It is stifled；During dismounting, each loosing and theft preventing bolt is unscrewed, gently pulls out plugging device.
Claims (5)
1. a kind of loosing and theft preventing bolt, including bolt head and shank of bolt, it is characterised in that：The transition of the bolt head and shank of bolt
Place is provided with circular positioning disk, the bolt head be cross section be in equilateral triangle column and stud head adjacent two sides it
Between use round-corner transition, the bolt head top surface is provided with the phase of the equilateral triangle baffle plate that can be circumferentially rotated and baffle plate using rivet
Round-corner transition is used between adjacent two sides, the center line of the bolt head and baffle plate overlaps and circle where the radiused apex of bolt head
The diameter of periphery where the diameter of side face is less than the radiused apex of baffle plate；The shank of bolt includes oppositely oriented forward and backward spiral shell
Line section, the diameter of the preceding thread section are more than the diameter of rear thread section.
2. loosing and theft preventing bolt according to claim 1, it is characterised in that：The radiused apex one of the bolt head and baffle plate
A pair seasonable, the straight line contour convergence of the bolt head and baffle plate.
3. loosing and theft preventing bolt according to claim 1, it is characterised in that：Between the forward and backward thread segment of the shank of bolt
Provided with escape.
4. loosing and theft preventing bolt according to claim 1, it is characterised in that：The end face center of the bolt head is provided with rivet
Hole.
5. loosing and theft preventing bolt according to claim 1, it is characterised in that：The circular positioning disk is close to the end of bolt head
Chamfered transition is utilized between face and circumference side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600922.5U CN206802043U (en) | 2017-05-26 | 2017-05-26 | Loosing and theft preventing bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600922.5U CN206802043U (en) | 2017-05-26 | 2017-05-26 | Loosing and theft preventing bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802043U true CN206802043U (en) | 2017-12-26 |
Family
ID=60742934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720600922.5U Expired - Fee Related CN206802043U (en) | 2017-05-26 | 2017-05-26 | Loosing and theft preventing bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802043U (en) |
-
2017
- 2017-05-26 CN CN201720600922.5U patent/CN206802043U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Lixin Inventor after: Zhang Mengdong Inventor after: Sun Bo Inventor after: Zu Zishu Inventor after: Xu Yuechen Inventor after: Zu Baohua Inventor before: Zhou Lixin Inventor before: Xu Yuechen Inventor before: Zu Baohua |
|
| 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: 20171226 Termination date: 20200526 |