CN103089783A - Locking oblique groove metal insert nut - Google Patents
Locking oblique groove metal insert nut Download PDFInfo
- Publication number
- CN103089783A CN103089783A CN2011103374169A CN201110337416A CN103089783A CN 103089783 A CN103089783 A CN 103089783A CN 2011103374169 A CN2011103374169 A CN 2011103374169A CN 201110337416 A CN201110337416 A CN 201110337416A CN 103089783 A CN103089783 A CN 103089783A
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- Prior art keywords
- nut
- metal insert
- skewed slot
- diamond
- insert
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Abstract
A locking oblique groove metal insert nut comprises a nut body and a metal insert with inner thread. A cylindrical slot is reserved on the lower portion of the nut body. Three diamond oblique grooves are symmetrically reserved on the outer periphery of the cylindrical slot. The metal insert is provided with three diamond protrusions which can be embedded into the diamond oblique grooves of the nut. The axial depth of each diamond oblique groove equals to the thickness of the metal insert. The metal insert is as deep as the cylindrical slot, so that the insert can be prevented from moving along a screw direction on the inner side of the nut effectively. An acute angle alpha of each diamond is larger than a lead angle beta of the inner thread of the nut, so that dislocation lifting distance of the nut and the insert is larger than the thread lifting distance, and fasteners in violent vibration or power load can be locked effectively. By combining the metal insert with the slotted nut, loosening caused by vibration and power load can be prevented effectively. Compared with the prior art, the locking oblique groove metal insert nut is easy to mount and demount and reusable, no holes need to be drilled on the screw, and safety of the screw is improved.
Description
Technical field
The present invention relates to a kind of locking skewed slot metal insert nut.
Background technique
The regular screw threads fastening piece is loosening in order to prevent from tightening back nut, and the main method that adopts has double nut to tighten, add elastic washer, adds cotter pin, locked spacer, series connection steel wire, nylon inserts, nut fluting etc.The method that double nut is tightened still can be become flexible in the strong occasion of vibrations, frees nut when serious and comes off, and owing to having increased a nut, wastes material, needs simultaneously to increase the length of bolt.The relaxation effect that adds elastic washer is not good, need to carry out turning processing and add cotter pin, locked spacer and series connection steel wire on screw rod or nut, and technique is loaded down with trivial details.Nylon inserts anti-loose method repeated disassembled and assembled occasion is easy to damage, and it is locking that some producer adopts metal insert to carry out, but due to problems such as structural designs, poor effect.Slotted nut refers to process groove above hexagon nut, in order to insert cotter pin in the hole of screw rod from the groove of nut, prevent nut auto back pine, be mainly used in having the occasion of oscillating load or alternate load, process on screw rod due to needs and portal, complex process, and reduced screw strength.
Publication number is the slotted nut that the patent of CN 201016354Y discloses a kind of rotatable adjustment included angle, formed by parts such as nut, tubular fluting body, straight pin, springs, in using process, the outstanding taper end of straight pin is inserted in the circular hole of spring, spring, straight pin are respectively charged in circular hole on nut inner circle shrinkage pool plane, the groove of this slotted nut is rotatably adjusted angle, during use, be arranged on the screw rod that is equipped with pin-and-hole, by the angle of backward rotation adjustment fluting body, can conveniently slot and the cooperation of screw rod pin-and-hole.Still there are the problems such as screw rod punching in this structure, and technique is loaded down with trivial details, and under the high load vibration environment, the pin-and-hole place easily produces stress and concentrates, and causes the screw rod fracture.
Summary of the invention
The present invention is directed to above-mentioned situation, provide a kind of simple in structure, reasonable in design, anti-loosing effect is good, can repeatedly dismantle long service life, reliable and stable locking skewed slot insert nut.
It is this a kind of locking skewed slot metal insert nut that the present invention solves the problems of the technologies described above the technological scheme that adopts, comprise nut body and internal thread metal insert, the nut body bottom is tubular fluting body, the external circumference symmetrical position of tubular fluting has 3 rhombus skewed slots, metal insert stretches out body with 3 rhombuses, but the rhombus skewed slot of insert nut.
As preferably, rhombus skewed slot axial depth of the present invention equals inserts thickness, and metal insert is identical with the tubular fluting body degree of depth, can effectively stop inserts to move along the screw rod direction in the nut inboard.
As preferably, rhombus sharp angle α of the present invention is greater than nut inner thread lead angle β.Due to the difference of angle, the rhombus acute angle is greater than the nut inner thread lead angle, so nut and inserts changing of the relative positions lifting distance greater than screw thread lifting distance, thereby can effectively be locked the fastening piece that is in high vibration or dynamic load.
The present invention compares with prior art and has the following advantages, and the rhombus skewed slot axial depth on nut equals inserts thickness, can effectively stop inserts to move along the screw rod direction in the nut inboard.Rhombus acute angle on nut is greater than the nut inner thread lead angle, thereby can effectively lock the fastening piece that is in high vibration or dynamic load, improved the anti-loosening property of fastening piece.Simultaneously, need not punching on screw rod, improved the Safety performance of screw rod; Metal insert and slotted nut are united use, more effectively prevent due to becoming flexible that vibration and dynamic load cause; The present invention need not the parts such as straight pin, and installing/dismounting is easy, and can be repeatedly used.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is a kind of structural representation of skewed slot nut body.
Fig. 3 is a kind of half section structural representation of skewed slot nut body.
Fig. 4 is a kind of structural representation of metal insert body.
Label declaration: skewed slot nut 1, metal insert 2, nut body 3, rhombus skewed slot 4, tubular fluting body 5, nut inner thread 6, inserts body 7, rhombus stretch out body 8 and inserts internal thread 9.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.
As shown in Fig. 1 to 6, the present embodiment is comprised of skewed slot nut 1, metal insert 2.Wherein skewed slot nut 1 comprises nut body 3, rhombus skewed slot 4, tubular fluting body 5 and nut inner thread 6.Metal insert 2 comprises that inserts body 7, rhombus stretch out body 8 and inserts internal thread 9.
During assembling, first metal insert 2 is embedded the tubular fluting body 5 of skewed slot nuts 1, and rhombus is stretched out body 8 buckle in rhombus skewed slot 4, the insert nut after combination is screwed on screw rod.When tightening, skewed slot nut 2 promotes nuts and inserts is tightened simultaneously, equals the thickness of metal insert 2 due to rhombus skewed slot 4 axial depth, and metal insert 2 is identical with tubular fluting body 5 degree of depth, can effectively stop inserts to move along the screw rod direction in the nut inboard.When vibrations occur in the mechanism after tightening, due to the rhombus acute angle of the rhombus skewed slot 4 on skewed slot nut 1 greater than nut inner thread 6 and inserts internal thread 9 lead angles, nut and inserts changing of the relative positions lifting distance are greater than screw thread lifting distance, under high vibration or dynamic load condition, can realize effective locking of skewed slot nut.When the present invention assembles, need not punching on screw rod, improved the Safety performance of screw rod; Metal insert and slotted nut are united use, more effectively prevent due to becoming flexible that vibration and dynamic load cause; The present invention need not the parts such as straight pin, and installing/dismounting is easy, and can be repeatedly used.
In addition, need to prove, the specific embodiment described in this specification, the shape of its parts and components, institute's title of being named etc. can be different.Allly conceive according to the present invention equivalence or the simple change that described structure, feature and principle are done, be included in the protection domain of this patent.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (4)
1. a locking skewed slot metal insert nut, comprise nut body and internal thread metal insert.
2. locking skewed slot metal insert nut according to claim 1, it is characterized in that: described nut body bottom is tubular fluting body, the external circumference symmetrical position of tubular fluting has 3 rhombus skewed slots, and metal insert stretches out body with 3 rhombuses, but the rhombus skewed slot of insert nut.
3. locking skewed slot metal insert nut according to claim 2, it is characterized in that: described rhombus skewed slot axial depth equals inserts thickness, and metal insert is identical with the tubular fluting body degree of depth.
4. locking skewed slot metal insert nut according to claim 1, it is characterized in that: described rhombus acute angle is greater than the nut inner thread lead angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110337416.9A CN103089783B (en) | 2011-10-31 | 2011-10-31 | Locking oblique groove metal insert nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110337416.9A CN103089783B (en) | 2011-10-31 | 2011-10-31 | Locking oblique groove metal insert nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103089783A true CN103089783A (en) | 2013-05-08 |
| CN103089783B CN103089783B (en) | 2015-08-26 |
Family
ID=48202763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110337416.9A Expired - Fee Related CN103089783B (en) | 2011-10-31 | 2011-10-31 | Locking oblique groove metal insert nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103089783B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514056A (en) * | 2016-06-16 | 2017-12-26 | 罗煜 | Gas-water separation type aluminium alloy room based on offshore platform |
| CN108223851A (en) * | 2018-02-27 | 2018-06-29 | 温州威蓝阀门有限公司 | A kind of locating piece for check-valves |
| CN110593767A (en) * | 2018-06-13 | 2019-12-20 | 史密斯国际有限公司 | Split thread for securing an accessory to a body |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB139702A (en) * | 1919-06-02 | 1920-03-11 | William Dudley Lee | Bolt and nut locks |
| US1986891A (en) * | 1929-02-02 | 1935-01-08 | Edward A Green | Nut and retainer |
| US2325303A (en) * | 1942-07-29 | 1943-07-27 | Frank W Brooke | Self-locking nut |
| US20050152769A1 (en) * | 2004-01-14 | 2005-07-14 | Kerr Jack R. | Lock nut having ring lock with lug |
| CN101479488A (en) * | 2006-01-25 | 2009-07-08 | J·伦登 | Lock nut |
-
2011
- 2011-10-31 CN CN201110337416.9A patent/CN103089783B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB139702A (en) * | 1919-06-02 | 1920-03-11 | William Dudley Lee | Bolt and nut locks |
| US1986891A (en) * | 1929-02-02 | 1935-01-08 | Edward A Green | Nut and retainer |
| US2325303A (en) * | 1942-07-29 | 1943-07-27 | Frank W Brooke | Self-locking nut |
| US20050152769A1 (en) * | 2004-01-14 | 2005-07-14 | Kerr Jack R. | Lock nut having ring lock with lug |
| CN101479488A (en) * | 2006-01-25 | 2009-07-08 | J·伦登 | Lock nut |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514056A (en) * | 2016-06-16 | 2017-12-26 | 罗煜 | Gas-water separation type aluminium alloy room based on offshore platform |
| CN108223851A (en) * | 2018-02-27 | 2018-06-29 | 温州威蓝阀门有限公司 | A kind of locating piece for check-valves |
| CN110593767A (en) * | 2018-06-13 | 2019-12-20 | 史密斯国际有限公司 | Split thread for securing an accessory to a body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103089783B (en) | 2015-08-26 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20171031 |
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| CF01 | Termination of patent right due to non-payment of annual fee |