CN112096709A - Constant-torque bolt convenient to process - Google Patents
Constant-torque bolt convenient to process Download PDFInfo
- Publication number
- CN112096709A CN112096709A CN202010987688.2A CN202010987688A CN112096709A CN 112096709 A CN112096709 A CN 112096709A CN 202010987688 A CN202010987688 A CN 202010987688A CN 112096709 A CN112096709 A CN 112096709A
- Authority
- CN
- China
- Prior art keywords
- nut
- constant torque
- torque bolt
- ease
- manufacture
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title abstract description 8
- 241001391944 Commicarpus scandens Species 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 7
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 abstract 2
- 239000004020 conductor Substances 0.000 description 3
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
- F16B23/0015—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
- F16B23/0023—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially cross-shaped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
- F16B23/003—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool star-shaped or multi-lobular, e.g. Torx-type, twelve-point star
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
A kind of bolt of constant torque easy to process, including the threaded spindle, the first nut, the second nut, the easy-to-break structure, the first nut is set up in the end of threaded spindle, the second nut is connected with first nut coaxially through the easy-to-break structure, the structure of the first nut is different from second nut, make it need to use different disassembling tools to operate, the outline of the first nut is round with gap, use the conventional disassembling tool to operate the second nut to rotate and make the bolt rotate while operating, when the torque reaches the value that the easy-to-break structure can't bear, the easy-to-break structure breaks, make the second nut separate, in this way, can reach the effect of constant torque, prevent the bolt from being screwed up or too loose, and influence the conductive connection of the wire, in addition because the outline of the first nut is round with gap, namely the abnormal structure of the non-standard, need to use the abnormal disassembling tool to operate, in this way can limit the operation illegally, such as illegal lapping operation of the watt-hour meter, and prevents the electricity stealing behavior.
Description
Technical Field
The invention relates to a constant-torque bolt.
Background
In the process of connecting the power lead, the bolt is widely used for conducting connection, and the lead and the conductor are tightly pressed through the front end of the bolt. During the process of connecting the conducting wire by using the bolt, the screwing torque of the bolt is not too large or too small. The torque is too small, the contact is unreliable, and the connection part is easy to generate heat and even cause electrical fire. If the torque is too large, the lead and the connection terminal are easily broken, and also an electrical failure is easily caused.
In addition, in the connection of the power conductors, many scenes relate to the measurement of electric energy, so that the connection of the conductors is required to have the function of limiting illegal lapping, and the actions of electricity stealing and the like can be realized by preventing simple operation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a constant-torque bolt which is convenient to process and can limit illegal disassembly and assembly.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a constant torque bolt convenient to processing which characterized in that: including screw rod, first nut, second nut, breakable structure, first nut sets up at the screw rod tip, and the second nut is through breakable structure and first nut coaxial coupling, and the structure of first nut and second nut is different, makes it need adopt different assembly and disassembly tools to operate, and the outline of first nut is for having the circular of breach.
And a regular hexagonal groove, a straight groove or a cross groove is formed on the top surface of the second screw cap.
The outer contour of the second nut is a regular hexagon.
The frangible structure has a frangible neck portion.
The screw rod, the first nut, the second nut and the easily-broken structure are integrally formed.
The easy-to-break structure comprises a positive conical section connected to the top surface of the first nut and an inverted conical section connected to the bottom surface of the second nut, wherein the positive conical section is coaxially connected with the inverted conical section and forms an easy-to-break necking part at the joint.
The notch is linear.
The screw, the first nut, the second nut and the breakable structure are coaxially distributed.
The invention has the following beneficial effects:
the second nut passes through breakable structure and first nut coaxial coupling, adopt the rotation of conventional assembly and disassembly tools operation second nut to make the bolt rotatory during the operation, when the moment of torsion reaches the unable value that bears of breakable structure, breakable structure fracture makes the separation of second nut, just so can reach the effect of permanent moment of torsion, prevent that the bolt from being twisted too tightly or too pine, and influence the electrically conductive connection of wire, in addition because the outline of first nut is for having the circular of breach, nonstandard dysmorphism structure promptly, need adopt special-shaped assembly and disassembly tools just can operate, can restrict illegal dismouting like this, like the illegal overlap joint operation of kilowatt-hour meter, prevent the action of stealing electricity, first nut adopts the milling machine can process the breach, the processing of first nut of can being convenient for, save the processing cost.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a front view of the present invention.
Fig. 2 is a perspective view of the present invention.
FIG. 3 is an external view of the first nut.
Detailed Description
Referring to fig. 1 to 3, a constant torque bolt convenient to process, includes screw rod 1, first nut 2, second nut 3, breakable structure 4, first nut 2 sets up at screw rod 1 tip, second nut 3 is connected with first nut 2 through breakable structure 4, screw rod 1, first nut 2, second nut 3 and breakable structure 4 integrated into one piece and coaxial arrangement, first nut 2 is different with second nut 3's structure, makes it need adopt different assembly and disassembly tools to operate.
The top surface of the second nut 3 is formed with a regular hexagonal groove 31, which can be operated by a conventional dismounting tool, or the top surface of the second nut 3 can be provided with a straight groove or a cross groove as required, or the outer contour of the second nut 3 can be designed into a regular hexagonal shape or other shapes that can be operated by a conventional dismounting tool.
The outer contour of the first nut 2 is circular with a notch 21, the notch 21 is linear for processing, namely the first nut 2 is of a special-shaped structure and can be operated only by adopting a special-shaped assembly and disassembly tool, and the conventional assembly and disassembly tool cannot be operated.
The breakable structure 4 comprises a normal conical section 43 connected to the top surface of the first nut 2 and an inverted conical section 41 connected to the bottom surface of the second nut 3, the normal conical section 43 and the inverted conical section 41 are coaxially connected and form a breakable necking part 42 at the joint, and when the torque reaches a certain value, the breakable structure 4 is broken from the necking part 42, so that the second nut 3 falls off.
During operation, the second nut 3 is operated by a conventional dismounting tool to rotate so that the bolt rotates in the screw hole, when the torque reaches a value which cannot be borne by the breakable structure 4, the breakable structure 4 is broken to separate the second nut 3, when the bolt needs to be dismounted, the bolt can be withdrawn from the screw hole only by operating the first nut 2 to rotate by a special-shaped dismounting tool, so that illegal dismounting can be limited, such as illegal lap joint operation of a watt-hour meter, and electricity stealing behavior is prevented.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents and modifications within the scope of the description.
Claims (8)
1. The utility model provides a constant torque bolt convenient to processing which characterized in that: including screw rod, first nut, second nut, breakable structure, first nut sets up at the screw rod tip, and the second nut is through breakable structure and first nut coaxial coupling, and the structure of first nut and second nut is different, makes it need adopt different assembly and disassembly tools to operate, and the outline of first nut is for having the circular of breach.
2. A constant torque bolt for ease of manufacture as defined in claim 1 wherein: and a regular hexagonal groove, a straight groove or a cross groove is formed on the top surface of the second screw cap.
3. A constant torque bolt for ease of manufacture as defined in claim 1 wherein: the outer contour of the second nut is a regular hexagon.
4. A constant torque bolt for ease of manufacture as claimed in claim 1 or claim 2 or claim 3 wherein: the frangible structure has a frangible neck portion.
5. A constant torque bolt for ease of manufacture as claimed in claim 1 or claim 2 or claim 3 wherein: the screw rod, the first nut, the second nut and the easily-broken structure are integrally formed.
6. A constant torque bolt for ease of manufacture as claimed in claim 1 or claim 2 or claim 3 wherein: the easy-to-break structure comprises a positive conical section connected to the top surface of the first nut and an inverted conical section connected to the bottom surface of the second nut, wherein the positive conical section is coaxially connected with the inverted conical section and forms an easy-to-break necking part at the joint.
7. A constant torque bolt for ease of manufacture as claimed in claim 1 or claim 2 or claim 3 wherein: the notch is linear.
8. A constant torque bolt for ease of manufacture as claimed in claim 1 or claim 2 or claim 3 wherein: the screw, the first nut, the second nut and the breakable structure are coaxially distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987688.2A CN112096709A (en) | 2020-09-18 | 2020-09-18 | Constant-torque bolt convenient to process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987688.2A CN112096709A (en) | 2020-09-18 | 2020-09-18 | Constant-torque bolt convenient to process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112096709A true CN112096709A (en) | 2020-12-18 |
Family
ID=73759489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010987688.2A Pending CN112096709A (en) | 2020-09-18 | 2020-09-18 | Constant-torque bolt convenient to process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112096709A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2540579A1 (en) * | 1983-02-08 | 1984-08-10 | Fraimant Jean Jacques | Method making it possible to check whether the ring bolt fastening an electrical connector has been manoeuvred by actuating the ring |
| CN201916334U (en) * | 2011-01-28 | 2011-08-03 | 杭州钱江电气集团股份有限公司 | Antitheft bolt and socket wrench therefor |
| CN102465952A (en) * | 2010-11-09 | 2012-05-23 | 北汽福田汽车股份有限公司 | Anti-theft bolt, anti-theft bolt mounting method and automobile |
| CN103335008A (en) * | 2013-07-10 | 2013-10-02 | 郑洪蛟 | Universal anti-theft bolt and using method thereof |
| CN204025279U (en) * | 2014-07-28 | 2014-12-17 | 麦海东 | A kind of separable automatic control moment of torsion type bolt |
| CN108869504A (en) * | 2018-07-25 | 2018-11-23 | 浙江鼎盛汽车紧固件有限公司 | A kind of non-dismountable type anti-theft bolt |
-
2020
- 2020-09-18 CN CN202010987688.2A patent/CN112096709A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2540579A1 (en) * | 1983-02-08 | 1984-08-10 | Fraimant Jean Jacques | Method making it possible to check whether the ring bolt fastening an electrical connector has been manoeuvred by actuating the ring |
| CN102465952A (en) * | 2010-11-09 | 2012-05-23 | 北汽福田汽车股份有限公司 | Anti-theft bolt, anti-theft bolt mounting method and automobile |
| CN201916334U (en) * | 2011-01-28 | 2011-08-03 | 杭州钱江电气集团股份有限公司 | Antitheft bolt and socket wrench therefor |
| CN103335008A (en) * | 2013-07-10 | 2013-10-02 | 郑洪蛟 | Universal anti-theft bolt and using method thereof |
| CN204025279U (en) * | 2014-07-28 | 2014-12-17 | 麦海东 | A kind of separable automatic control moment of torsion type bolt |
| CN108869504A (en) * | 2018-07-25 | 2018-11-23 | 浙江鼎盛汽车紧固件有限公司 | A kind of non-dismountable type anti-theft bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201218 |