CN201575036U - Combined anti-disassembling round nut - Google Patents
Combined anti-disassembling round nut Download PDFInfo
- Publication number
- CN201575036U CN201575036U CN2010200222663U CN201020022266U CN201575036U CN 201575036 U CN201575036 U CN 201575036U CN 2010200222663 U CN2010200222663 U CN 2010200222663U CN 201020022266 U CN201020022266 U CN 201020022266U CN 201575036 U CN201575036 U CN 201575036U
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- nut
- threaded piece
- rotating part
- gradually
- key
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Abstract
A combined anti-disassembling round nut comprises a screwing member and a thread member; the screwing member is a regular hexahedron with a round hole in center; at least two key teeth are uniformly distributed on the internal circumference of the round hole; the thread member is a cylinder matched with the round hole; a thread hole is disposed in the center of the cylinder; key slots of a number equal to that of the key teeth are uniformly distributed on the external circumference of the cylinder; and the screwing member and the thread member are connected through engagement of key teeth and key slots thereon.
Description
Technical field
The utility model relates to a kind of threaded fastener, more specifically to a kind of anti-dismounting of combined type round nut of non-loosening.
Background technique
Be located at the electric power pylon frame in country field, being in unmanned guard does not have again under the public's the state of supervision, often becomes thief's stealing object.Because the high voltage power transmission steel towers is to be built by the connection of bolt and nut fastening piece by some steel members, the thief can unscrew nut and unload fastening piece by big spanner, steel member on the steel towers is pulled down a part to be gone to steal and sell, cause the iron tower discontinuity equalization, its bearing strength weakens greatly, meets disastrous weathers such as storm, heavy snow, because of discontinuity equalization, just be easy to decay, cause great threat for electric transmission line safety.
The present inventor has proposed " the non-dismountable nut of a kind of non-loosening " utility application on October 6th, 2006, and is authorized.This patent is by upwards being provided with 2～3 gradually flutings the screw week at nut, and the bonding elastic strip is divided into two raceways with described groove in groove, the roller that disposes in groove again, places ball respectively on two raceways.The nut backward rotation, roller, ball can be towards the gradually gradually narrow direction rollings of fluting, and roller, ball are squeezed in the internal thread, and nut can not be become flexible.Because roller or ball are subjected to the restriction of nut diameter and thread groove size, can not be sufficiently large.Through test, this nut clamps two symmetry plane and carries out brute force when dismounting meeting big spanner, and bigger torsion can make it lose anti-loosening and non-removable characteristic with making ball or roller in the nut crowded broken.
Summary of the invention
The purpose of this utility model provides a kind of like this nut: this nut screws the hex surface of back on it to be separated with nut body, and nut does not have the plane that spanner clamps again, spanner can't be imposed than high pulling torque nut it is unscrewed, and throws off bolt.
Above-mentioned purpose is implemented by following technical proposals:
Described nut is in comprising rotating part and threaded piece, and described rotating part is first-class hexahedron, and this hexahedron center is provided with circular hole, is evenly equipped with at least two key teeth on the inner peripheral surface of circular hole; Described threaded piece is a cylindrical body that matches with described circular hole, this cylindrical center is provided with tapped hole, be evenly equipped with on the cylindrical outer peripheral surface and the identical keyway of the described key number of teeth, rotating part is realized being connected of rotating part and threaded piece by the key tooth on it with the engagement of keyway with threaded piece.
Uniform several are gradually slotted on the tapped hole inwall of described threaded piece, and gradually fluting is built-in with roller or ball, and when unscrewing the direction rotation, ball or roller move to the gradually narrow direction of gradually slotting at nut.
The utility model is made the assembly parts of being made up of rotating part and threaded piece with hexagon nut, and this two assembly uses different material respectively, makes its bearing strength difference, and rotating part is made of plastic materials, and bearing strength is lower.Rotating part is driving the threaded piece rotation by the pin key on it under the effect of corresponding instruments such as spanner, and threaded piece is tightened on the corresponding screw rod.Continue to impose bigger moment of torsion as spanner and rotate rotating part, when the moment of torsion of turn had surpassed the intensity of the key pin carrying on the rotating part, key pin was subjected to shear fracture, rotating part is thrown off with threaded piece be connected, and becomes two discrete parts.Only stay cylindrical threaded piece on the corresponding bolt, smooth barrel surface can not produce larger clamping force and consequent big rotation torque and come being connected of loose nut and bolt, and makes this nut become the anti-nut of dismantling.
The screw of nut circumferentially is provided with gradually fluting on the other hand, roller that in groove, disposes again or ball, make threaded piece loosening as external force, roller, ball can be towards the gradually gradually narrow direction rollings of fluting, it is squeezed in the internal thread, threaded piece can not be become flexible, and make the utility model nut become anti-loosening nut.
Description of drawings
Fig. 1 is the utility model one example structure schematic representation.
Fig. 2 is the structural representation of rotating part.
Fig. 3 is the structural representation of threaded piece.
Fig. 4 is the M place enlarged view of Fig. 1.
Fig. 5 is the A-A sectional view of Fig. 1.
Among the figure, 20 threaded pieces, 21 tapped holes, 22 gradually slot 23 keyways, the 24th, roller, 25 balls, 26 capping grooves, 30 rotating parts, 31 circular holes, 32 key teeth, 33 gripping surfaces.
Embodiment
Below in conjunction with drawings and Examples the utility model and advantage thereof are described further.
Contrast Fig. 1, nut of the present utility model is made up of rotating part 30 and threaded piece 20.Rotating part 30 usefulness plastic materialss are made, and for first-class hexahedron, see also Fig. 2, and this hexahedron center is provided with circular hole 31, are evenly equipped with three key teeth 32 on the inner peripheral surface of circular hole.Threaded piece 30 usefulness steel are made, it is a cylindrical body that matches with circular hole 31 in the hexahedron, this cylindrical center is provided with tapped hole 21, be evenly equipped with on the cylindrical outer peripheral surface and three identical keyways 23 of rotating part circular hole internal key tooth 32 numbers, rotating part 30 is realized both be connected by the key tooth 32 on it with the engagement of keyway 23 with threaded piece 20.In order to make nut be difficult for looseningly screwing the back, on tapped hole 21 inwalls two symmetrical positions of threaded piece 20, be provided with respectively and gradually slot 22, gradually slotting 22 is built-in with roller 24.
When being screwed in nut of the present utility model on the bolt, two symmetrical gripping surfaces 33 rotate to screwing direction in the spanner clamping rotating part 30, under the effect of key tooth 32 and keyway 23, drive threaded piece 20 and rotate, and make it finally to be tightened on the corresponding bolt.Continue to impose moment of torsion again as spanner, make the active force that acts on the rotating part key tooth 32 surpass the intensity of its carrying, key tooth 32 is subjected to shear fracture, rotating part 30 is thrown off with threaded piece 20 be connected, and becomes two discrete parts.Only stay cylindrical threaded piece 20 on the bolt, its smooth barrel surface can not make turn instrument generation larger clamping forces such as spanner, and the big rotation torque that can not produce thus comes loose nut, thereby makes the utility model nut become the nut of anti-dismounting.When threaded piece 20 took place to become flexible owing to various factors, roller 24 moved to the gradually narrow direction of gradually slotting, and this moving will make roller 24 push in screw thread, stop threaded piece to the rotation of becoming flexible direction, make the utility model nut become anti-loosening nut again.
Claims (2)
1. the anti-dismounting of combined type round nut is characterized in that comprising rotating part and threaded piece, and described rotating part is first-class hexahedron, and this hexahedron center is provided with circular hole, is evenly equipped with at least two key teeth on the inner peripheral surface of circular hole; Described threaded piece is a cylindrical body that matches with described circular hole, this cylindrical center is provided with tapped hole, be evenly equipped with on the cylindrical outer peripheral surface and the identical keyway of the described key number of teeth, rotating part is realized both be connected by the key tooth on it with the engagement of keyway with threaded piece.
2. the anti-dismounting of combined type according to claim 1 round nut, its feature uniform several on the tapped hole inwall of described threaded piece are gradually slotted, gradually fluting is built-in with roller or ball, and when unscrewing the direction rotation, ball or roller move to the gradually narrow direction of gradually slotting at nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200222663U CN201575036U (en) | 2010-01-19 | 2010-01-19 | Combined anti-disassembling round nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200222663U CN201575036U (en) | 2010-01-19 | 2010-01-19 | Combined anti-disassembling round nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201575036U true CN201575036U (en) | 2010-09-08 |
Family
ID=42694911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200222663U Expired - Fee Related CN201575036U (en) | 2010-01-19 | 2010-01-19 | Combined anti-disassembling round nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201575036U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486127A (en) * | 2013-09-30 | 2014-01-01 | 平湖市山特螺纹工具有限公司 | Nut of groove grinding machine |
| CN109505851A (en) * | 2018-06-19 | 2019-03-22 | 陈汉保 | A kind of antidetonation never quick-release bolt pair |
| CN110062604A (en) * | 2016-10-10 | 2019-07-26 | 西特尼斯Ag | Screwdriver with integrated torque protection |
| DE102021213643A1 (en) | 2021-12-01 | 2023-06-01 | Schmid Schrauben Hainfeld Gmbh | Screw, tool and assembly with a screw and tool |
-
2010
- 2010-01-19 CN CN2010200222663U patent/CN201575036U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486127A (en) * | 2013-09-30 | 2014-01-01 | 平湖市山特螺纹工具有限公司 | Nut of groove grinding machine |
| CN110062604A (en) * | 2016-10-10 | 2019-07-26 | 西特尼斯Ag | Screwdriver with integrated torque protection |
| CN109505851A (en) * | 2018-06-19 | 2019-03-22 | 陈汉保 | A kind of antidetonation never quick-release bolt pair |
| DE102021213643A1 (en) | 2021-12-01 | 2023-06-01 | Schmid Schrauben Hainfeld Gmbh | Screw, tool and assembly with a screw and tool |
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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: 20100908 Termination date: 20120119 |