CN104235162B - Jam nut - Google Patents
Jam nut Download PDFInfo
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- CN104235162B CN104235162B CN201310317129.0A CN201310317129A CN104235162B CN 104235162 B CN104235162 B CN 104235162B CN 201310317129 A CN201310317129 A CN 201310317129A CN 104235162 B CN104235162 B CN 104235162B
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- thread
- angle
- spiral shell
- inclination
- jam nut
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Abstract
The invention relates to a kind of jam nut, jam nut comprises a head and a screw rod is extended in head side, screw rod side face comprises an outside thread, side, externally threaded spiral shell peak two is differing tilt angles with the vertical line perpendicular to the central axis of screw rod and comprises one first angle of inclination and one second angle of inclination, the thread angle of jam nut is between 61 ° to 67 °, first angle of inclination of thread angle is between 32 ° to 40 °, second angle of inclination of thread angle is between 25 ° to 29 °, by this outside thread of jam nut and the internal thread of object be standard type 60 ° of thread angle screw togather use, can interference fit be formed with internal thread respectively with the upper and lower edge of outside thread two side spiral shell abdomen and reach good anti-loosing effect.
Description
Technical field
The invention relates to a kind of jam nut, espespecially a kind of externally threaded two side spiral shell abdomens form the angle of inclination such as not, and when jam nut is screwed into the object of the internal thread with standard type 60 ° of thread angle, namely the outside thread of jam nut forms the screw-joining structure of interference fit with the internal thread of object.
Background technique
In daily life, the combination of many objects is screwed in the female object of such as tool with screw to be screwed togather location; and get loose after preventing the internal screw-thread screw of screw and object; usual meeting wears the resilient pad (SpringWasher) of such as C shape with screw; when screw is screwed in the internal thread of object; and when compressing resilient pad distortion; namely the elastic force of resilient pad form anti-the pushing against object of the power of work and can increase anti-loosing effect; but, this kind of resilient pad to be arranged in some narrow narrow space and inapplicable.For this reason, separately there is dealer that a coating is set on the internal thread of screw or object, make the screw lock of the internal thread of screw and object, can be filled in the middle of the thread pitch that screws togather with the compressing distortion of coating, produce locking effect by this, namely not easily get loose after making the internal screw-thread screw of screw and object, only a coating is set on the internal thread of screw or object, significantly will increase manufacture cost, for this reason, today jam nut or screw lock module to the greatest extent desirable yet and truly have the necessity improved.
Summary of the invention
The invention provides a kind of jam nut, it comprises a head and a screw rod is extended in head side, screw rod comprises the outside thread being formed in side face, outside thread comprises a spiral helicine Luo Feng and a spiral helicine spiral shell root, outside thread is included in the one first spiral shell abdomen and spiral helicine one second spiral shell abdomen that extend between Luo Feng to spiral shell root, externally threaded first spiral shell abdomen to the second spiral shell abdomen forms the thread angle between 61 ° to 67 °, externally threaded thread angle comprise by the first spiral shell abdomen to perpendicular to screw rod central axis and through this central axis a vertical line between one first angle of inclination that formed, and externally threaded thread angle comprise by one second angle of inclination formed between the second spiral shell abdomen to vertical line, and the first angle of inclination is between 32 ° to 40 °, second angle of inclination is between 25 ° to 29 °.
Feature of the present invention, namely by the externally threaded thread angle of jam nut between 61 ° to 67 °, and the first angle of inclination comprising two Bu Deng angles of inclination, side because of outside thread between 32 ° to 40 ° and the second angle of inclination between 25 ° to 29 °, and interference fit can be produced with the internal screw-thread screw of standard type 60 ° of thread angle, and utilize interference fit position to suffer mutual extrusion-deformation, and the positive force of contact position can be increased, promote frictional force each other by this, make jam nut and screwing togather of object can reach good anti-loosing effect, and jam nut of the present invention, on screw thread, additionally coating must be set, therefore the Practical Benefit of significantly saving manufacture cost can be reached.
The invention provides a kind of screw lock module, it comprises a jam nut, jam nut comprises a head and a screw rod is extended in head side, screw rod comprises the outside thread being formed in side face, outside thread comprises a spiral helicine Luo Feng and a spiral helicine spiral shell root, outside thread is included in the one first spiral shell abdomen and one second spiral shell abdomen that extend between Luo Feng to spiral shell root, externally threaded first spiral shell abdomen to the second spiral shell abdomen forms the thread angle between 61 ° to 67 °, externally threaded thread angle comprise by the first spiral shell abdomen to perpendicular to screw rod central axis and through this central axis a vertical line between one first angle of inclination that formed, and externally threaded thread angle comprise by one second angle of inclination formed between the second spiral shell abdomen to vertical line, first angle of inclination is between 32 ° to 40 °, second angle of inclination is between 25 ° to 29 °, and comprise an object, object comprises the internal thread that thread angle is 60 °, the pitch of internal thread is identical with the externally threaded pitch of jam nut, internal thread comprises a spiral helicine land and a spiral helicine spiral shell root, internal thread is included in one first outside of belly and one second outside of belly that extend between land to spiral shell root, the external thread spiro fastening of jam nut forms interference fit in the internal thread of object, the wherein at least one of the outside thread of jam nut or the internal thread contact position of object is caused to produce distortion.
The present invention utilizes the externally threaded thread angle of the jam nut of screw lock module between 61 ° to 67 °, and the first angle of inclination comprising two Bu Deng angles of inclination, side because of outside thread between 32 ° to 40 ° and the second angle of inclination between 25 ° to 29 °, and interference fit can be produced with the internal screw-thread screw of standard type 60 ° of thread angle, and suffer mutual extrusion-deformation by interference fit position, and the positive force of contact position can be increased, promote frictional force each other by this, make screwing togather of screw lock module can reach good anti-loosing effect, and the outside thread position of the jam nut of screw lock module of the present invention, additionally coating must be set, and significantly can save manufacture cost.
Accompanying drawing explanation
Fig. 1 is jam nut stereogram of the present invention.
Fig. 2, after the peripheral spiral shell of jam nut of the present invention establishes object, forms the imaginary schematic diagram of interference fit each other.
Fig. 3, after Fig. 2 circle establishes the peripheral spiral shell of the jam nut of position to establish object, forms the imagination signal partial enlarged drawing of interference fit each other.
Fig. 4 is that jam nut of the present invention and object screw togather sectional view.
Fig. 5 is that jam nut of the present invention and object screw togather and analyse and observe partial enlarged drawing.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail.
Following institute drawings attached is only convenient to explain that the present invention instructs substantially, in accompanying drawing by form the number of element of preferred embodiment, position, relation and size extension will have illustrated by, in reading and understand the change that instruction of the present invention is correlated with afterwards and belong to industry technical ability.In addition, in reading and after understanding instruction of the present invention, specific strength, weight, intensity and the accurate dimension of similar requirement and the change of dimension scale is coordinated also to belong to industry technical ability.
Identical or like is indicated in different figures with identical label; Please understand such as " first ", " second ", " peak ", " top ", " root ", " interior ", " outward " etc. and similar term in literary composition in addition, only provide in observer's reference drawing and construct, and only describe the present invention for helping.
As shown in the figure, jam nut 20 of the present invention comprises a head (Screwhead) 22 and a screw rod 24 is extended in head 22 side, screw rod 24 comprises the outside thread 28(left hand thread that is formed in side face or right-hand thread all can, the present invention shows with right-hand thread as illustrative examples), outside thread 28 comprises a spiral helicine Luo Feng (Crest) 30 and a spiral helicine spiral shell root (Root) 32, outside thread 28 is included in one first spiral shell abdomen 34 and the one second spiral shell abdomen 36 extended between spiral shell peak 30 to spiral shell root 32, first spiral shell abdomen 34 is towards the end of screw rod 24, and the second spiral shell abdomen 36 is towards head 22.
As shown in the figure, the thread angle (Angleoftherad) that first spiral shell abdomen 34 to the second spiral shell abdomen 36 of the outside thread 28 of jam nut 20 of the present invention is formed is between 61 ° to 67 °, and namely the thread angle angle of the first spiral shell abdomen 34 to the second spiral shell abdomen 36 of outside thread 28 is being more than or equal to 61 ° in the interval range being less than or equal to 67 °.
As shown in the figure, the thread angle of the outside thread 28 of jam nut 20 of the present invention comprises one first angle of inclination A and one second angle of inclination B, further describe, first angle of inclination A be positioned at the first spiral shell abdomen 34 to perpendicular to screw rod 24 central axis X and through this central axis X a vertical line Y between, second angle of inclination B be positioned at the second spiral shell abdomen 36 to perpendicular to screw rod 24 central axis X and through this central axis X a vertical line Y between (as Fig. 2, shown in Fig. 3), and the first angle of inclination A is between 32 ° to 40 °, and second angle of inclination B between 25 ° to 29 °, the i.e. all non-30 ° of angles of inclination of the first angle of inclination A and the second angle of inclination B, and be different from the shape-V thread of general standard type 60 ° of thread angle.
As shown in the figure, first angle of inclination A of the outside thread 28 of jam nut 20 and the angle summation of the second angle of inclination B are between 61 ° to 67 °, as the first angle of inclination A be 32 ° time, second angle of inclination B is 29 °, or first angle of inclination A when being 33 °, second angle of inclination is 28 ° or 29 °, or when the first angle of inclination A is 34 °, the second angle of inclination is 27 °, 28 ° or 29 °, or when the first angle of inclination A is 35 °, the second angle of inclination B is 26 °, 27 °, 28 ° or 29 °, when the first angle of inclination A is 36 ° again, the second angle of inclination is 25 °, 26 °, 27 °, 28 ° or 29 °, or when the first angle of inclination A is 37 °, the second angle of inclination is 25 °, 26 °, 27 °, 28 ° or 29 °, and when the first angle of inclination A is 38 °, the second angle of inclination is 25 °, 26 °, 27 °, 28 ° or 29 °, or when the first angle of inclination A is 39 °, the second angle of inclination B is 25 °, 26 °, 27 ° or 28 °, and when the first angle of inclination is 40 °, the second angle of inclination B is 25 °, 26 ° or 27 °.
As shown in the figure, jam nut 20 of the present invention and an object 40 are formed together with screwing togather of interference fit (as shown in Figures 4 and 5), this object 40 is as the case for notebook computer of nut or such as aluminum-magnesium alloy, and object 40 comprises thread angle is that an internal thread 42(of 60 ° is containing standard type 60 ° of thread angle of metric system or English system), further describe, the pitch (Pitch) of the internal thread 42 of object 40 is identical with the pitch of the outside thread 28 of jam nut 20, internal thread 42 comprises a spiral helicine land 44 and a spiral helicine spiral shell root 46, internal thread 42 is included in one first outside of belly 48 and one second outside of belly 50 extended between land 44 to spiral shell root 46, the thread angle formed between first outside of belly 48 to the second outside of belly 50 is 60 °, if divide equally with a straight line being parallel to vertical line Y in this thread angle, then first outside of belly 48 so far straight line and second outside of belly 50 so far straight line be all 30 ° of angles.The pitch diameter (Pitchdiameter) of the internal thread 42 of object 40 is slightly larger than the pitch diameter of outside thread 28 again, can make the outside thread 28 of jam nut 20 by this when force rotates, can be formed together with screwing togather of interference fit with the internal thread 42 of object 40, and cause outside thread 28 or internal thread 42 extrusion-deformation because rubbing, and when increasing positive force each other, the frictional force screwing togather position can be increased, making object 40 when meeting with rule or irregular shaking force, still cannot the jam nut 20 screwed togather together be unclamped with object 40.
The thread angle of the outside thread 28 of jam nut 20 of the present invention is between 61 ° to 67 °, this thread angle comprises not equal angular first angle of inclination A and the second angle of inclination B, therefore when jam nut 20 is screwed together in the internal thread 42 of standard type 60 ° of thread angle of object 40, namely contiguous spiral shell root 32 place of first spiral shell abdomen 34 of the outside thread 28 of jam nut 20 forms interference fit with first outside of belly 48 of the internal thread 42 of object 40, and second outside of belly 50 of contiguous spiral shell peak 30 place of the second spiral shell abdomen 36 of the outside thread 28 of jam nut 20 and internal thread 42 forms interference fit (as shown in Figure 5).And extrusion-deformation can be produced for the relative contact position of the internal thread 42 of the outside thread 28 of jam nut 20 or object 40 due to interference fit.For convenience of description, Fig. 5 supposes that the hardness of the nut forming object 40 is greater than the hardness of jam nut 20, this is one of feasible way of example, the hardness of other such as nuts of object 40 is less than the hardness of jam nut 20, also internal thread 42 contact position of object 40 can be made in interference fit to produce extrusion-deformation, or, the hardness of the nut of object 40 equals the hardness of jam nut 20, then in interference fit, the internal thread 42 of object 40 and outside thread 28 contact position of jam nut 20 all can produce extruding mutually and distortion, this can be selected according to application and actual demand.
Therefore the hardness of object 40 is less than with the hardness of the jam nut 20 shown in Fig. 5, when the outside thread 28 of jam nut 20 is screwed in the internal thread 42 of object 40, even the outside thread 28 of jam nut 20 is with on internal thread 42 contact position of object 40, because of the extruding of interference fit, the outside thread 28 of jam nut 20 is caused to produce distortion, and the positive force N1 forming pushing and pressing on the contact position of first outside of belly 48 of internal thread 42 presses on first outside of belly 48, and the positive force N2 forming pushing and pressing on the contact position of second outside of belly 50 of internal thread 42 presses on second outside of belly 50, by this first outside of belly 48 of internal thread 42 and second outside of belly 50 are created to the positive force strengthening and compress, and the frictional force that can improve between the outside thread 28 of jam nut 20 and the internal thread 42 of object 40.
Feature of the present invention, namely because the outside thread 20 of jam nut 20 comprises the first angle of inclination A and the second angle of inclination B at two Bu Deng angles of inclination, side, can screw togather with the internal thread 42 of standard type 60 ° of thread angle and produce the extrusion-deformation of interference fit, produce enough surface friction drag, therefore good anti-loosing effect can be reached, the i.e. interference fit of the internal thread 42 of jam nut 20 of the present invention and object 40, make jam nut 20 can increase force a little just can be screwed together in the internal thread 42 of object 40, and once lifting again because of frictional force after screwing togather, and present and better screw togather packing effect, therefore, even if object 40 at work, suffer from rule or irregular shaking force, jam nut 20 still can reach fastening and screw togather and the effect that not easily gets loose.Moreover the present invention additionally must not arrange coating on outside thread 28, therefore can reach the Practical Benefit of significantly saving manufacture cost.
Basic instruction of the present invention is illustrated, for having related domain usual technical ability people bodyguard, many extensions and change will be aobvious and Yi Zhizhe, such as, shown person in the accompanying drawing of specification, though comprise jam nut 20 and object 40 is all right-hand thread form, only also can change outside thread 28 into left hand thread form according to spirit of the present invention, and the anti-loosing effect of interference fit can be reached equally.In addition, though be shown as the first spiral shell abdomen 34 in the accompanying drawing of specification towards screw rod 24 end, second spiral shell abdomen 36 is towards head 22, if only change the first spiral shell abdomen 34 into towards head 22, second spiral shell abdomen 36 towards screw rod 24 end, the angle of inclination such as or not still can be formed by outside thread 28 2 side and vertical line Y, and the thread angle of outside thread 28 is between 61 ° to 67 °, and make jam nut 20 and object 40 form interference fit, anti-loosing effect when screwing togather can be reached equally.
Under the hardness that jam nut 20 of the present invention is not only useful in jam nut 20 is less than the hardness situation of the internal thread 42 of object 40, also the hardness being useful in jam nut 20 is more than or equal to the hardness of the internal thread 42 of object 40, jam nut 20 can be made to screw togather rear generation with the internal thread 42 of object 40 be out of shape and increase surface friction drag equally, the hardness of the internal thread 42 of such as object 40 is lower causes distortion, or the hardness of jam nut 20 is when being identical with the hardness of the internal thread 42 of object 40, the two mutually extrusion-deformation, all can reach and prevent jam nut 20 to get loose effect.
This specification disclosure, can not depart from the present invention's spirit or other particular form of general characteristics be implemented, and some forms of these particular forms is noted, so the embodiment that this specification discloses should be considered as illustrating and unrestricted.Scope of the present invention is defined by appended claim, instead of defined by above-mentioned explanation, and the institute for the impartial meaning and scope that fall into claim changes and will be included within its scope.
Claims (2)
1. a jam nut, it is characterized in that, comprise a head (22) and a screw rod (24) is extended in head (22) side, screw rod (24) comprises the outside thread (28) being formed in side face, outside thread (28) comprises a spiral helicine Luo Feng (30) and a spiral helicine spiral shell root (32), outside thread (28) is included in the one first spiral shell abdomen (34) and one second spiral shell abdomen (36) that extend between Luo Feng (30) to spiral shell root (32), first spiral shell abdomen (34) to the second spiral shell abdomen (36) of outside thread (28) forms the thread angle between 61 ° to 67 °, the thread angle of outside thread (28) comprises by the first spiral shell abdomen (34) to perpendicular to the central axis (X) of screw rod (24) and one first angle of inclination (A) formed between a vertical line (Y) through this central axis (X), the thread angle of outside thread (28) also comprises by one second angle of inclination (B) formed between the second spiral shell abdomen (36) to vertical line (Y), first angle of inclination (A) is between 32 ° to 40 °, second angle of inclination (B) is between 25 ° to 29 °.
2. a screw lock module, is characterized in that, comprising:
One jam nut (20), comprise a head (22) and a screw rod (24) is extended in head (22) side, screw rod (24) comprises the outside thread (28) being formed in side face, outside thread (28) comprises a spiral helicine Luo Feng (30) and a spiral helicine spiral shell root (32), outside thread (28) is included in the one first spiral shell abdomen (34) and one second spiral shell abdomen (36) that extend between Luo Feng (30) to spiral shell root (32), first spiral shell abdomen (34) to the second spiral shell abdomen (36) of outside thread (28) forms the thread angle between 61 ° to 67 °, the thread angle of outside thread (28) comprises by the first spiral shell abdomen (34) to perpendicular to the central axis (X) of screw rod (24) and one first angle of inclination (A) formed between a vertical line (Y) through this central axis (X), the thread angle of outside thread (28) also comprises by one second angle of inclination (B) formed between the second spiral shell abdomen (36) to vertical line (Y), first angle of inclination (A) is between 32 ° to 40 °, second angle of inclination (B) is between 25 ° to 29 °,
One object (40), comprise the internal thread (42) that thread angle is 60 °, the pitch of internal thread (42) is identical with the pitch of the outside thread (28) of jam nut (20), internal thread (42) comprises a spiral helicine land (44) and a spiral helicine spiral shell root (46), comprises one first outside of belly (48) and one second outside of belly (50) that separate between land (44) to spiral shell root (46);
The outside thread (28) of jam nut (20) is screwed together in internal thread (42) the formation interference fit of object (40), causes the wherein at least one of the outside thread (28) of jam nut (20) or internal thread (42) contact position of object (40) to produce distortion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310317129.0A CN104235162B (en) | 2013-06-19 | 2013-07-25 | Jam nut |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320354023.3 | 2013-06-19 | ||
| CN201320354023 | 2013-06-19 | ||
| CN2013203540233 | 2013-06-19 | ||
| CN201310317129.0A CN104235162B (en) | 2013-06-19 | 2013-07-25 | Jam nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104235162A CN104235162A (en) | 2014-12-24 |
| CN104235162B true CN104235162B (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310317129.0A Expired - Fee Related CN104235162B (en) | 2013-06-19 | 2013-07-25 | Jam nut |
Country Status (1)
| Country | Link |
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| CN (1) | CN104235162B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3153723A1 (en) * | 2015-10-06 | 2017-04-12 | HILTI Aktiengesellschaft | Thread moulding screw with separate thread spiral and different flank portion angles |
| CN105485136A (en) * | 2015-12-14 | 2016-04-13 | 庆达科技股份有限公司 | Fastener |
| CN108331830A (en) * | 2017-01-17 | 2018-07-27 | 福光企业股份有限公司 | Jam nut |
| WO2019192558A1 (en) * | 2018-04-07 | 2019-10-10 | 游奕华 | Connection structure of traditional thread and external thread of thread outlining symmetrically and bidirectionally tapered olivary shape |
| WO2019192572A1 (en) * | 2018-04-07 | 2019-10-10 | 玉环胜友工具有限公司 | Dumbbell-shaped symmetric bidirectional tapered thread connection pair |
| WO2019192571A1 (en) * | 2018-04-07 | 2019-10-10 | 玉环胜友工具有限公司 | Bolt and nut connection structure having dumbbell-like symmetrical bidirectional tapered thread |
| CN110617264A (en) * | 2019-10-11 | 2019-12-27 | 李武彬 | Elastic thread anti-loosening fastening device |
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| CN2069504U (en) * | 1990-06-08 | 1991-01-16 | 丁百人 | Anti-theft device for transformer |
| US5580199A (en) * | 1993-06-29 | 1996-12-03 | Kabushiki Kaisha Suzuki Rashi Seisakusho | Fastening screw |
| US5876168A (en) * | 1995-10-09 | 1999-03-02 | Iwata Bolt Kabushiki Kaisha | Thread forms for preventing disengagement between male and female screwheads |
| CN2900898Y (en) * | 2006-10-13 | 2007-05-16 | 上海连盈螺丝有限公司 | Anti-loose screw structure |
| CN101994742A (en) * | 2009-08-10 | 2011-03-30 | 甲府精鋲株式会社 | Lock screw |
| CN102261365A (en) * | 2010-04-22 | 2011-11-30 | (株)亚细亚Bolt | Screw configured to have improved anti-shock, anti-vibration, and fastening ability, and screw-type mechanical component |
| CN102741570A (en) * | 2010-10-01 | 2012-10-17 | 盈科知识产权私人有限公司 | Threaded fastener |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201599300U (en) * | 2009-12-23 | 2010-10-06 | 成都泰格微电子研究所有限责任公司 | Self-locking screw with large thread angle |
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2013
- 2013-07-25 CN CN201310317129.0A patent/CN104235162B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069504U (en) * | 1990-06-08 | 1991-01-16 | 丁百人 | Anti-theft device for transformer |
| US5580199A (en) * | 1993-06-29 | 1996-12-03 | Kabushiki Kaisha Suzuki Rashi Seisakusho | Fastening screw |
| US5876168A (en) * | 1995-10-09 | 1999-03-02 | Iwata Bolt Kabushiki Kaisha | Thread forms for preventing disengagement between male and female screwheads |
| CN2900898Y (en) * | 2006-10-13 | 2007-05-16 | 上海连盈螺丝有限公司 | Anti-loose screw structure |
| CN101994742A (en) * | 2009-08-10 | 2011-03-30 | 甲府精鋲株式会社 | Lock screw |
| CN102261365A (en) * | 2010-04-22 | 2011-11-30 | (株)亚细亚Bolt | Screw configured to have improved anti-shock, anti-vibration, and fastening ability, and screw-type mechanical component |
| CN102741570A (en) * | 2010-10-01 | 2012-10-17 | 盈科知识产权私人有限公司 | Threaded fastener |
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| Publication number | Publication date |
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| CN104235162A (en) | 2014-12-24 |
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Granted publication date: 20160420 |