CN101963184A - Thread fastening device - Google Patents
Thread fastening device Download PDFInfo
- Publication number
- CN101963184A CN101963184A CN2010102979066A CN201010297906A CN101963184A CN 101963184 A CN101963184 A CN 101963184A CN 2010102979066 A CN2010102979066 A CN 2010102979066A CN 201010297906 A CN201010297906 A CN 201010297906A CN 101963184 A CN101963184 A CN 101963184A
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- China
- Prior art keywords
- return
- tooth
- fastening device
- packing ring
- nut
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Abstract
The invention provides a thread fastening device, comprising a bolt, screw or nut, and a washer; the bolt, screw or nut is provided with circular check grooves on a supporting surface; the washer is provided with L-shaped or arched check teeth totally presenting circular shapes and turned towards a thread tightening direction opposite to the check grooves of the bolt, screw or nut; the washer is provided with lower turning check teeth downwards turned towards the opposite side of the check teeth on the outer sides of the front ends of opening parts of the check teeth. The invention uses inter-tooth engagement for positioning and locking the thread fastening piece to prevent the looseness of the thread fastening piece in the vibration and impact load environment.
Description
Technical field
The present invention relates to securing means, more specifically, the present invention relates to a kind of threaded fastening device.
Background technique
At present threaded fastener prevent the mode of becoming flexible comprise spring washer, to jacking nut, locking plate, lock pin, locking glue, locking silk, interference fit, built-in spring, the flange flank of tooth, coated with resins, non-circle closing in, nonmetally inlay, hollow expansion, hollow jackscrew, laminate packing ring, bidirectional helical, wedge thread, the loosening non-return effect that plays for preventing threaded fastener that has in these modes is undesirable, the operation inconvenience that has.
Summary of the invention
For overcoming the defective of effect difference non-return, anti-loosening in the existing threaded fastener, the present invention proposes a kind of threaded fastening device.
According to an aspect of the present invention, proposed a kind of threaded fastening device, comprised bolt, screw or nut, also comprised it is characterized in that packing ring:
Described bolt, screw or nut are provided with annular non-return groove at supporting surface, described packing ring is being provided with the non-return tooth of L shaped or arc that totally screws the direction perk ringwise to screw thread with the non-return groove of described bolt, screw or nut corresponding part, and described packing ring turns over non-return tooth down what described non-return tooth opening portion front end arranged outside was turned under described non-return tooth offside.
The non-return groove of annular is an even number, and correspondence evenly distributes; The number of non-return tooth is lacked one than the non-return groove of described annular, and the non-return groove of described annular is arranged on the outer rim or the inner edge of described bolt, screw or nut seat.
The present invention utilizes down the non-return tooth that turns over to locate to packing ring, utilizes the outstanding locating tooth of inner edge to locate to bolt, utilizes the between cog engagement, produces the locking effect for threaded fastener, prevents the loosening inefficacy of threaded fastener in vibration, impulsive load environment; Horizontal L shaped profile of tooth or arc profile of tooth make it not use special tool also can dismantle.Threaded fastener of the present invention uses simple structural design, realizes that threaded fastener is no longer loosening after fastening; And need not special tool can normally dismantle, and reuses.
Description of drawings
Fig. 1 is the schematic representation according to the threaded fastening device of the first embodiment of the present invention;
Fig. 2 is the front view according to the bolt that contains the non-return groove of wedge shape of the first embodiment of the present invention;
Fig. 3 is the plan view according to packing ring of the present invention;
Fig. 4 is to launching view according to the K of the packing ring of Fig. 3 of the present invention;
Fig. 5 is the schematic representation of threaded fastening device according to a second embodiment of the present invention;
Fig. 6 is the schematic representation of nut according to a second embodiment of the present invention;
Fig. 7 is the front view of packing ring according to a second embodiment of the present invention;
Fig. 8 is to launching view according to the K of the packing ring of Fig. 7 of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments a kind of threaded fastening device provided by the invention is described in detail.
Threaded fastening device of the present invention is total comprises threaded fastener and packing ring, the opposing side of threaded fastener and packing ring is respectively equipped with non-return groove and the non-return tooth of elasticity, and packing ring turns under the oriented non-return tooth offside of the non-return tooth opening portion of elasticity front end arranged outside turns over non-return tooth down.Threaded fastener comprises screw or the bolt that is applied to tapped blind hole, perhaps is applied to the bolt of through hole and supporting nut thereof.
In first embodiment of present embodiment, threaded fastening device of the present invention comprises screw or bolt and the packing ring that is applied to tapped blind hole.
As depicted in figs. 1 and 2, be applied to the screw or the bolt 1 of tapped blind hole 3, be provided with annular non-return groove 5 in its supporting surface outer rim or inner edge, non-return groove 5 is wedge shape or arc, non-return groove top is equal to or less than bolt or screw head supporting surface, and non-return groove bottom height is greater than matching used packing ring or pad 2 thickness 0.3mm-1.5mm.The number of non-return groove is an even number, and mutually corresponding configuration is generally corresponding 6 that overlap with hexagonal, and the wedge shape of non-return groove 5 or arc angle at interval are 20 °-40 °.The above bolt of M24 can increase non-return groove quantity, at interval reduce relative with distribution angle; The non-return groove that hex head bolt supporting surface outer rim is provided with can corresponding configuration with the hexagonal of spiral shell head, with assurance supporting surface area.Non-return groove is if adopt the non-return groove of wedge shape, and then to screw side be the wedge shape facade to its screw thread, and wedge shape facade and nut center line are 10 ° of-30 ° of angles.Non-return groove is if adopt the non-return groove of arc, and then its screw thread screws the side radian and unscrews side more than or equal to screw thread.
As shown in Figure 3 and Figure 4, matching used packing ring is the packing ring plane in the corresponding district of supporting surface with bolt or nut; Be provided with the overall ringwise non-return tooth 4 of elasticity that screws the direction perk to screw thread in corresponding district with bolt or the non-return groove of nut, the non-return tooth of elasticity 4 evenly distributes for odd number, be generally 5, be distributed as per 72 ° one, non-return between cog is divided into 30 °-40 °, the warping part is divided into 30 °-40 °, and the perk part is 20 ° of-70 ° of angles with the packing ring plane; The tooth tip of the non-return tooth of elastic washer can be set to arc or be similar to two kinds of forms of horizontal L type, excessive R is arranged at the bottom, L type angle that the non-return tooth tooth tip of elastic washer is the L type, the non-return tooth body of position, folding part and perk is 90 ° of-150 ° of angles under the tooth tip bending, and front end can be straight shape and also can be arc; When the non-return tooth of elastic washer was arc, its cambered top end or top radian identical with the root radian was greater than the root radian, and the radian shape is less than the non-return groove arc of this nut; That turns under the oriented non-return tooth offside in the non-return tooth opening portion front end outside turns over non-return tooth 6 down, turns over non-return tooth down and the packing ring plane is 10 ° of-30 ° of angles, and downturned portion branch length is 0.3-5mm, utilizes the difference of hardness of packing ring material and fastened parts base material non-return.The above big specification elastic washer of M20 can increase the non-return tooth of elasticity, and the non-return number of teeth amount after the increase still is an odd number, along with circumference strengthens, and the corresponding distribution angle that reduces.The matching relationship of non-return groove of even number and the non-return tooth of odd number elasticity minimizes fastening piece locking angle.Grooved nut check angle general and the lock pin adapted is 60 °, and the locking angle of above-mentioned 6 non-return grooves, 5 non-return tooth cooperations of elasticity is 12 °, and the number of teeth of big specification fastening piece increases, and the locking angle is littler, realizes guaranteeing the purpose of pretightening force.
As shown in the figure, bolt is inserted in elastic washer 2 and inserts blind hole 3, screws bolt 1, and non-return tooth 4 of elasticity and non-return groove 5 engagements turn over non-return tooth 6 and will put fastened base material under when packing ring rotates under the packing ring, and bolt is working state.
Fig. 5 illustrates the scheme of installation according to second embodiment's of the present invention bolt and nut that is applied to through hole 87 external members 11.As shown in Figure 5, the threaded end of this bolt is provided with longitudinal register groove 13, and clamping slot depth is greater than the screw thread modulus, and the width and the degree of depth are close, length less than two of reaches more than the modulus and greater than two of nut height more than the modulus.
Fig. 6 illustrates according to schematic representation second embodiment of the present invention and the nut bolt matching use that is applied to through hole.As illustrated in Figures 5 and 6, the nut that uses with the bolt matching of connecting through hole is provided with annular non-return groove 12; Non-return groove is arranged at nut seat outer rim or supporting surface inner edge; Non-return groove has wedge shape or two kinds of forms of arc, and non-return groove top is equal to or less than nut seat, and non-return slot wedge shape or curved bottom are lower than supporting surface, and the groove bottom height of non-return slot wedge shape or arc is greater than matching used packing ring 9 or spacer thickness 0.3mm-1.5mm.If adopt the non-return groove of wedge shape, then to screw side be the wedge shape facade to its screw thread, and wedge shape facade and nut center line are 10 ° of-30 ° of angles; If adopting 12 its curve bath screw threads of the non-return groove of arc to screw the side radian is equal to or greater than screw thread and unscrews side.Non-return groove quantity is even number, corresponding configuration, be generally corresponding 6 that overlap with hexagonal, the wedge shape of non-return groove or arc angle at interval are 20 °-40 °, wedge shape or arc distribution angle are 20 °-40 °, and the above nut of M24 can increase non-return groove quantity, at interval reduce relative with distribution angle, the non-return groove that the following nut seat outer rim of M24 is provided with can corresponding configuration with the hexagonal of nut, with assurance supporting surface area.
It is the packing ring plane in the corresponding district of supporting surface with nut that Fig. 7 and Fig. 8 illustrate matching used packing ring; Be provided with the overall ringwise non-return tooth 10 of elasticity that screws the direction perk to screw thread in corresponding district with bolt or the non-return groove of nut, the non-return tooth of elasticity is that odd number evenly distributes, be generally 5, be distributed as per 72 ° one, non-return between cog is divided into 30 °-40 °, the warping part is divided into 30 °-40 °, and the perk part is 20 ° of-70 ° of angles with the packing ring plane; The non-return tooth tooth tip of elastic washer can be set to arc or be similar to two kinds of forms of horizontal L type, excessive R is arranged at the bottom, L type angle that the non-return tooth tooth tip of elastic washer is the L type, the non-return tooth body of position, folding part and perk is 90 ° of-150 ° of angles under the tooth tip bending, and front end can be straight shape and also can be arc; The non-return tooth of elastic washer is an arc, and its cambered top end or top radian identical with the root radian is greater than the root radian, and the radian shape is less than the non-return groove arc of this nut; That turns under the oriented non-return tooth offside in the non-return tooth opening portion front end outside turns over non-return tooth 14 down, turns over non-return tooth down and the packing ring plane is 10 ° of-30 ° of angles, and downturned portion branch length is 0.3-5mm, utilizes the difference of hardness of packing ring material and fastened parts base material non-return.The above big specification elastic washer of M20 can increase the non-return tooth of elasticity, and the non-return number of teeth amount after the increase still is an odd number, along with circumference strengthens the corresponding distribution angle that reduces.The matching relationship of non-return groove of even number and the non-return tooth of odd number elasticity minimizes fastening piece locking angle.Grooved nut check angle general and the lock pin adapted is 60 °, and the locking angle of above-mentioned 6 non-return grooves, 5 non-return tooth cooperations of elasticity is 12 °, and the number of teeth of big specification fastening piece increases, and the locking angle is littler, realizes guaranteeing the purpose of pretightening force.
Bolt 7 is penetrated workpiece through-hole 8, the non-return tooth 10 of the elasticity of elastic washer 9 prominent locating tooth in nut 11 screw terminals, nut is inserted in bolt locating slot 13, non-return groove 12 sides of nut 11 are towards the non-return tooth 10 of packing ring elasticity, screw in bolt 7 screw threads and apply pretightening force, make non-return tooth 10 engagements of non-return groove 12 of nut and packing ring elasticity, turn over non-return tooth 14 under the packing ring and will put fastened base material under when packing ring rotates, nut is working state.
Assemblies such as the screw in the fastening piece of the present invention, bolt, double-screw bolt, nuts and washers do not have specific (special) requirements on material, can be according to the specific requirements at Environmental Conditions and position, adopt common metal, precious metal or such as the non-metallic material of engineering plastics.
It should be noted that at last, above embodiment is only in order to describe technological scheme of the present invention rather than the present technique method is limited, the present invention can extend to other modification, variation, application and embodiment on using, and therefore thinks that all such modifications, variation, application, embodiment are in spirit of the present invention and teachings.
Claims (10)
1. a threaded fastening device comprises bolt, screw or nut, also comprises it is characterized in that packing ring:
Described bolt, screw or nut are provided with annular non-return groove at supporting surface, described packing ring is being provided with the non-return tooth of L shaped or arc that totally screws the direction perk ringwise to screw thread with the non-return groove of described bolt, screw or nut corresponding part, and described packing ring turns over non-return tooth down what described non-return tooth opening portion front end arranged outside was turned under described non-return tooth offside.
2. threaded fastening device according to claim 1 is characterized in that, the non-return groove of described annular is an even number, and correspondence evenly distributes; The number of described non-return tooth is lacked one than the non-return groove of described annular.
3. threaded fastening device according to claim 2 is characterized in that, the non-return groove of described annular is arranged on the outer rim or the inner edge of described bolt, screw or nut seat.
4. threaded fastening device according to claim 1 is characterized in that, turns over non-return tooth under described and described packing ring plane is 10 ° of-30 ° of angles, and downturned portion branch length is 0.3-5mm.
5. threaded fastening device according to claim 1 is characterized in that, the non-return groove of described annular is wedge shape or arc, and the top of the non-return groove of described annular is equal to or less than described bolt bearing face.
6. threaded fastening device according to claim 5 is characterized in that, the bottom level of the non-return groove of described annular is greater than the thickness 0.3mm-1.5mm of described packing ring.
7. threaded fastening device according to claim 3 is characterized in that, the non-return groove of described annular is wedge shape, and it is wedge shape facade or inclined-plane that screw thread screws side.
8. threaded fastening device according to claim 3 is characterized in that the non-return groove of described annular is curved, and screw thread screws the side radian and unscrews side more than or equal to screw thread.
9. threaded fastening device according to claim 1, it is characterized in that, the tooth tip of the non-return tooth of described packing ring is set to be similar to horizontal L type, and the non-return tooth body of position, folding part and perk is 90 ° of-150 ° of angles under the described tooth tip bending, and front end is straight shape or arc.
10. threaded fastening device according to claim 7, it is characterized in that, the tooth tip of the non-return tooth of described packing ring is set to arc, the cambered top end of the non-return tooth of described packing ring or top radian identical with the root radian is greater than the root radian, and the radian shape is equal to or less than the arc of the non-return groove of this annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102979066A CN101963184A (en) | 2010-09-30 | 2010-09-30 | Thread fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102979066A CN101963184A (en) | 2010-09-30 | 2010-09-30 | Thread fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101963184A true CN101963184A (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102979066A Pending CN101963184A (en) | 2010-09-30 | 2010-09-30 | Thread fastening device |
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| CN (1) | CN101963184A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330732A (en) * | 2011-07-13 | 2012-01-25 | 许晓华 | Fastening connection structure for mechanical parts |
| WO2013082840A1 (en) * | 2011-12-06 | 2013-06-13 | 兰州西脉记忆合金股份有限公司 | Self-pressurized resilient gasket |
| CN104235159A (en) * | 2013-06-20 | 2014-12-24 | 现代摩比斯株式会社 | Structure for release preventing |
| CN107735580A (en) * | 2015-04-13 | 2018-02-23 | A·雷蒙德有限合伙公司 | Fixing device |
| CN108825227A (en) * | 2018-08-08 | 2018-11-16 | 徐州徐工基础工程机械有限公司 | Development machine cutter device and development machine |
| CN109356930A (en) * | 2018-12-20 | 2019-02-19 | 周诚恩 | A kind of screw thread locking structure |
| CN110985517A (en) * | 2019-12-26 | 2020-04-10 | 海盐县久力紧固件有限公司 | Anti-loose combined bolt with shoulder |
Citations (6)
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|---|---|---|---|---|
| US4538313A (en) * | 1980-02-15 | 1985-09-03 | Nobex Ab | Method of forming a joined pair of wedge-action lock washers |
| CN2140441Y (en) * | 1992-10-06 | 1993-08-18 | 董锡光 | Anti-loose fastener assembly |
| CN2373613Y (en) * | 1997-04-03 | 2000-04-12 | 赵耀 | Stop, tighten-up series screw thread fixture |
| CN2504043Y (en) * | 2001-09-28 | 2002-08-07 | 赵耀 | Screw fastener |
| CN1846072A (en) * | 2003-09-05 | 2006-10-11 | 罗伯特·鲍尔 | Locking device for locking screw thread workpiece |
| JP2007187178A (en) * | 2006-01-11 | 2007-07-26 | Toyota Motor Corp | Nut for screw fastening |
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2010
- 2010-09-30 CN CN2010102979066A patent/CN101963184A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4538313A (en) * | 1980-02-15 | 1985-09-03 | Nobex Ab | Method of forming a joined pair of wedge-action lock washers |
| CN2140441Y (en) * | 1992-10-06 | 1993-08-18 | 董锡光 | Anti-loose fastener assembly |
| CN2373613Y (en) * | 1997-04-03 | 2000-04-12 | 赵耀 | Stop, tighten-up series screw thread fixture |
| CN2504043Y (en) * | 2001-09-28 | 2002-08-07 | 赵耀 | Screw fastener |
| CN1846072A (en) * | 2003-09-05 | 2006-10-11 | 罗伯特·鲍尔 | Locking device for locking screw thread workpiece |
| JP2007187178A (en) * | 2006-01-11 | 2007-07-26 | Toyota Motor Corp | Nut for screw fastening |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330732A (en) * | 2011-07-13 | 2012-01-25 | 许晓华 | Fastening connection structure for mechanical parts |
| WO2013082840A1 (en) * | 2011-12-06 | 2013-06-13 | 兰州西脉记忆合金股份有限公司 | Self-pressurized resilient gasket |
| CN104235159A (en) * | 2013-06-20 | 2014-12-24 | 现代摩比斯株式会社 | Structure for release preventing |
| CN107735580A (en) * | 2015-04-13 | 2018-02-23 | A·雷蒙德有限合伙公司 | Fixing device |
| US10465727B2 (en) | 2015-04-13 | 2019-11-05 | A. Raymond Et Cie | Fastener device |
| CN107735580B (en) * | 2015-04-13 | 2020-09-04 | A·雷蒙德有限合伙公司 | Fixing device |
| CN108825227A (en) * | 2018-08-08 | 2018-11-16 | 徐州徐工基础工程机械有限公司 | Development machine cutter device and development machine |
| CN109356930A (en) * | 2018-12-20 | 2019-02-19 | 周诚恩 | A kind of screw thread locking structure |
| CN110985517A (en) * | 2019-12-26 | 2020-04-10 | 海盐县久力紧固件有限公司 | Anti-loose combined bolt with shoulder |
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| PB01 | Publication | ||
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Application publication date: 20110202 |