CN201368113Y - Dismantlement prevention lock nut group structure - Google Patents
Dismantlement prevention lock nut group structure Download PDFInfo
- Publication number
- CN201368113Y CN201368113Y CNU2009203002253U CN200920300225U CN201368113Y CN 201368113 Y CN201368113 Y CN 201368113Y CN U2009203002253 U CNU2009203002253 U CN U2009203002253U CN 200920300225 U CN200920300225 U CN 200920300225U CN 201368113 Y CN201368113 Y CN 201368113Y
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- nut
- tapered cup
- thickness
- force
- group structure
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Abstract
A dismantlement prevention lock nut group structure comprises a conical nut and a wedge gasket, wherein the conical nut is provided with a cone portion, a force application portion which is in a hexagonal column shape and a first wedge surface arranged on the lower surface of the conical nut, wherein the wedge gasket is a round gasket whose diameter circumference is larger than the conical nut, one surface of the wedge gasket is provided with a second wedge surface corresponding to the first wedge surface of the conical nut, and the other surface thereof is provided with at least an arris fillet, tools enable to apply forces and screw the conical nut through the hexagonal shape of the force application portion, and the force application portion enables to continuously apply force on purpose and break the configuration after the conical nut is tightly screwed, and the plane which is effectively held by the tools is reduced by matching with the shape of the cone portion, thereby reaching the effect of the dismantlement prevention. When the nut tends to reverse, the inclined plane between the two wedge surfaces can mutually push to form the interference force, and facilitates the occlusion of the nut more tight, and achieving the effects of the loosening prevention, and effectively improves the practicability of the nut group.
Description
Technical field:
The utility model relates to a kind of antitheft chek bolt structure-improved, refer in particular to a kind of nut and have the tapered cup nut of small size force surface, this small size force surface crumbles impaired after nut screws easily, causes the tamper jam nut group structure that can't use ordinary hand tools to outward winding.
Background technique:
See also shown in Figure 1ly, be known common nut block structure, this nut 100 has a main body 101, the external form of this main body 101 is the hexagonal column type, can cooperate simple hand tools such as sleeve, open-end wrench, main body 101 central authorities have made axis hole 102, and axis hole 102 inner edges are provided with internal thread 103; When two assembly parties will being made up, the screw rod 111 of one bolt 110 passes this two assembly parts, cooperate the uniform circular gasket 120 of a thickness, utilize the internal thread 103 of this nut 100 and screwing togather of the outside thread 112 on the bolt 110, and then with two assembly parts nuts 100 and bolt 110 fastening combinations.
Though, on carry known nut structure and can reach the effect that two assembly parties are fixing, yet, this nut 100 is after locking, still can come with reverse the unscrewing again of hand tools very easily, need prevent that compostle member from being had the inclination under the occasion of personage's dismounting having, can't reach the effect of tamper fully.In addition, this common nut structure is under the environment of vibrations, and nut is subjected to vibration influence, has the phenomenon that outwards unscrews along slope of thread gradually, does not have shockproof effect, and therefore, this known nut structure should still have and can be improved part.
The model utility content:
Technical problem to be solved in the utility model is: at above-mentioned the deficiencies in the prior art, a kind of tamper jam nut group structure is provided, the configuration of exerting oneself for hand tools on its nut can't oppositely be outwarded winding with this nut of tool holding in the nut locking ruined while of back.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopted is: a kind of tamper jam nut group structure, and it comprises a tapered cup nut and a taperliner; Be characterized in: described tapered cup nut has a conus portion, a force section, and first sphenoid surface of being located at this tapered cup nut lower surface; This force section is the hexagonal cylindricality, can supply the sleeve or the Wrench application of force; This conus portion has an arc limit, and this arc limit is the camber line of indent; This taperliner is for directly enclosing the circular gasket greater than tapered cup nut, and the one side of this taperliner is equipped with second sphenoid surface with respect to first sphenoid surface of tapered cup nut, and another side then is provided with at least one arris fillet, should
Above-mentioned nut block, the integral thickness of its tapered cup nut meet the thickness specification of M 6, M 8 and M 10 metric system nuts, and the ratio of this force section thickness and tapered cup nut integral thickness is 1: 3.
Above-mentioned nut block, the integral thickness of its tapered cup nut meet the thickness specification of M 12, M 14, M 16 and M 18 metric system nuts, and the ratio of this force section thickness and tapered cup nut integral thickness is 1: 5.
Above-mentioned nut block, its tapered cup nut non-hardened heat treatment.
Above-mentioned nut block, the hardness of its pad is greater than the hardness of nut.
After adopting the improvement structure of above-mentioned nut, utilize the hexagonal appearance of force section to make instrument be able to the application of force and screw tapered cup nut, make this force section deliberately continue the application of force and make the damage that crumbles of its configuration in the back admittedly again at the tapered cup nut spiral shell, cooperate the appearance of conus portion, can reduce the effectively plane of clamping of instrument, and reach the effect of tamper; When nut had the trend of counter-rotating, the inclined-plane between two sphenoid surface pushes away to form mutually interfered strength to make the nut block interlock better fastening, and can reach locking effect, can effectively improve the practicability of nut block.
Description of drawings:
Fig. 1 is known nut block structure schematic appearance.
Fig. 2 is the schematic appearance of the utility model nut block.
Fig. 3 is another angle schematic appearance of the utility model nut block.
Fig. 4 is the side view of the utility model tapered cup nut.
Fig. 5 is to collapse and can't make the schematic representation of the instrument application of force in the tapered cup nut force section.
Label declaration:
100. nut 101. main bodys
102. axis hole 103. internal threads
110. bolt 111. screw rods
112. outside thread 120. circular gasket
20. tapered cup nut 21. conus portions
211. 22. force sections, arc limit
221. fillet 23. first sphenoid surface
230. unidirectional chisel teeth 231. block faces
232. inclined-plane 24. axis holes
30. taperliner 31. second sphenoid surface
32. arris fillet 40. sleeves
Embodiment:
Please refer to Fig. 2 and shown in Figure 3, is that the utility model is the preferred embodiment that M 8 does the nut of explanation with metric system nut specification.Nut block of the present utility model shown in the figure comprises a tapered cup nut 20 and a taperliner 30; Wherein, this tapered cup nut 20 is a non-hardened heat treatment and the member of the own intensity of material of only having, and these tapered cup nut 20 configurations comprise a conus portion 21 of larger proportion, are located at first sphenoid surface 23 of these tapered cup nut 20 lower surfaces than a force section 22 and of small scale; This first sphenoid surface 23 is formed by at least one unidirectional chisel teeth 230, and this unidirectional chisel teeth 230 is made of a block face 231 and an inclined-plane 232; This force section 22 is the smaller hexagonal cylindricality of thickness, can supply the sleeve or the Wrench application of force; This conus portion 21 has an arc limit 211, the appearance on this arc limit 211 is formed the camber line of indent to force section 22 outer rims near the position of axis hole 24 by the nut end face, for making conus portion 21 account for the larger proportion of whole nut external form, the effect that can keep force section 22 to rotate again for the instrument application of force, as shown in Figure 4, the thickness Y of this force section 22 is Y: H=1 with the thickness H ratio of tapered cup nut 20: 3; Thickness 6.5mm with M 8 metric system nuts is an example, and then the thickness of this force section 22 should only be about 2.2mm.The external form of this taperliner 30 is for directly enclosing the circular gasket greater than tapered cup nut 20, and has suitable hardness to reduce the degree of stress deformation, the one side of this taperliner 30 is equipped with second sphenoid surface 31 of appearance with respect to first sphenoid surface 23 of tapered cup nut, another side then is provided with at least one arris fillet 32, and the section configuration of this arris fillet 32 then screws the right-angled triangle of direction along tapered cup nut 20 for the inclined-plane.
By said structure, when tapered cup nut 20 screws, the force section 22 of less fabric width can be rotated for the hand tools application of force, the block face that set first sphenoid surface 23 of two members and second sphenoid surface are 31 leans on mutually and rotates synchronously easily, along with tapered cup nut 20 screwing gradually, the pressure that taperliner 30 puts on the assembly parts surface also increases gradually, till can't rotating, and makes arris fillet 32 embed in the assembly parts; Because the material non-hardened heat treatment of tapered cup nut 20 of the present utility model, the fabric width that adds force section 22 is too small, cause and to bear too high torsion strength, therefore, after tapered cup nut 20 is fastening, still continue to force under the situation of the application of force, destroyed by instrument the corner that makes this force section 22 bear the big stress of instrument, make this tapered cup nut 20 act on it with instrument again, tapered cup nut 20 most appearance are the cone that hypotenuse is the indent camber line again, the minimizing instrument is the plane of clamping effectively, reaches the effect of tamper; In addition, when nut had the trend of counter-rotating, the inclined-plane between two sphenoid surface pushed away mutually, made taperliner 30 fastening towards the arris fillet 32 better interlocks on assembly parts surface, and can reach locking effect.
As shown in Figure 5, in the said structure, be to utilize the hexagonal appearance of force section 22 to make sleeve 40 instruments such as grade be able to the application of force and screw tapered cup nut 20, make this force section 22 deliberately continue the application of force and make the damage that crumbles of its configuration form fillet 221 in the back admittedly again at tapered cup nut 20 spiral shells, cooperate the appearance of conus portion 21, can reduce the effectively plane of clamping of instrument, reach the effect of tamper, even under the complete situation of the configuration of force section 22, still be difficult to separately with tapered cup nut 20 counterrotatings (its principle is with locking effect) with instrument, that is the force section 22 of tapered cup nut 20 is under the excessive situation of the reverse application of force, configuration still can collapse damage, and can't make instrument mat power again, in case of necessity, only can remove in the mode of destroying nut block.Though the less hexagonal appearance that is thickness of the force section of the utility model tapered cup nut, yet, can not mention in the same breath only to have a thin type nut of hexagonal appearance (no conus portion), because of the thin type nut and can't reach the desired loading intensity of metric system nut; Explanation M 8 metric system nuts of usefulness and M 6 in the foregoing description, M 10 metric system nuts are not high because of integral thickness, institute's 1: 3 ratio of act enforcement can be implemented as prerequisite with the ratio of integral thickness in its force section 22, and M 12, M 14, M 16, M 18 metric system nut integral thickness are higher, its force section 22 can be 1: 5 with the ratio of integral thickness, to reduce the thickness of force section 22.
In sum, the utility model nut external form larger proportion be slick and sly cone type, after destroyed for the position of mat power, can prevent intentionally that personage's clamping nut is stolen tears open and has an anti-theft feature, and has excellent anti-loosing effect, really can provide a kind of tool locking and have the bolt arrangement of tamper concurrently, can satisfy general dealer's demand, propose patent application in accordance with the law.
Claims (6)
1. tamper jam nut group structure, it comprises a tapered cup nut and a taperliner; It is characterized in that:
Described tapered cup nut has a conus portion, a force section, and first sphenoid surface of being located at this tapered cup nut lower surface; This force section is the hexagonal cylindricality, can supply the sleeve or the Wrench application of force; This conus portion has an arc limit, and this arc limit is the camber line of indent;
This taperliner is for directly enclosing the circular gasket greater than tapered cup nut, the one side of this taperliner is equipped with second sphenoid surface with respect to first sphenoid surface of tapered cup nut, another side then is provided with at least one arris fillet, and the section of this arris fillet then screws the right-angled triangle of direction along nut for the inclined-plane.
2. tamper jam nut group structure as claimed in claim 1, it is characterized in that: the integral thickness of described tapered cup nut meets the thickness specification of M6, M8 and M10 metric system nut, and this force section thickness: the thickness of tapered cup nut is 1: 3.
3. tamper jam nut group structure as claimed in claim 1 is characterized in that: the integral thickness of described tapered cup nut meets the thickness specification of M12, M14, M16 and M18 metric system nut, and this force section thickness: the thickness of tapered cup nut is 1: 5.
4. tamper jam nut group structure as claimed in claim 1 is characterized in that: the heat treatment of described tapered cup nut non-hardened.
5. tamper jam nut group structure as claimed in claim 1, it is characterized in that: described first sphenoid surface is formed by at least one unidirectional chisel teeth, and this unidirectional chisel teeth is made of a block face and an inclined-plane.
6. tamper jam nut group structure as claimed in claim 1, it is characterized in that: the hardness of described pad is greater than the hardness of nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203002253U CN201368113Y (en) | 2009-01-14 | 2009-01-14 | Dismantlement prevention lock nut group structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203002253U CN201368113Y (en) | 2009-01-14 | 2009-01-14 | Dismantlement prevention lock nut group structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368113Y true CN201368113Y (en) | 2009-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009203002253U Expired - Fee Related CN201368113Y (en) | 2009-01-14 | 2009-01-14 | Dismantlement prevention lock nut group structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368113Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821813A (en) * | 2012-11-16 | 2014-05-28 | 重庆长安汽车股份有限公司 | Nut assembly with gasket |
| CN105134743A (en) * | 2014-03-11 | 2015-12-09 | 路荃琪 | Nut anti-theft discharge protection cover |
| CN106724173A (en) * | 2016-11-16 | 2017-05-31 | 余庆县兴达家具制造有限公司 | The manufacture method of sectional student desk chair |
| CN107117250A (en) * | 2017-04-25 | 2017-09-01 | 邢台革新机械设备制造有限公司 | One kind sealing fastening connection piece |
| CN110685991A (en) * | 2019-10-16 | 2020-01-14 | 嘉兴涵祺汽配科技有限公司 | Novel anti-skidding and anti-seismic check bolt |
-
2009
- 2009-01-14 CN CNU2009203002253U patent/CN201368113Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821813A (en) * | 2012-11-16 | 2014-05-28 | 重庆长安汽车股份有限公司 | Nut assembly with gasket |
| CN105134743A (en) * | 2014-03-11 | 2015-12-09 | 路荃琪 | Nut anti-theft discharge protection cover |
| CN105134743B (en) * | 2014-03-11 | 2017-03-22 | 李一达 | Nut anti-theft discharge protection cover |
| CN106724173A (en) * | 2016-11-16 | 2017-05-31 | 余庆县兴达家具制造有限公司 | The manufacture method of sectional student desk chair |
| CN107117250A (en) * | 2017-04-25 | 2017-09-01 | 邢台革新机械设备制造有限公司 | One kind sealing fastening connection piece |
| CN110685991A (en) * | 2019-10-16 | 2020-01-14 | 嘉兴涵祺汽配科技有限公司 | Novel anti-skidding and anti-seismic check bolt |
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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: 20091223 Termination date: 20170114 |