CN204099384U - Mechanical type self-locking screw - Google Patents
Mechanical type self-locking screw Download PDFInfo
- Publication number
- CN204099384U CN204099384U CN201420483872.3U CN201420483872U CN204099384U CN 204099384 U CN204099384 U CN 204099384U CN 201420483872 U CN201420483872 U CN 201420483872U CN 204099384 U CN204099384 U CN 204099384U
- Authority
- CN
- China
- Prior art keywords
- special
- nut
- bullet pad
- saw tooth
- shaped bullet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses mechanical type self-locking screw, comprise bolt, nut, special-shaped bullet pad, on the screw rod of bolt, cover has special-shaped bullet pad, then is screwed into nut on screw rod; There is the continuously arranged gear structure a of a circle in the face that bolt head contacts with screw rod, there is the continuously arranged gear structure b of a circle nut above and below, and special-shaped bullet pad is the broadside bullet mat structure of spring shape, has certain thickness, upper surface has saw tooth structure c1, and lower surface has saw tooth structure c2; Its excellent locking effect and when not increasing excessive cost, will have large market prospect.
Description
Technical field
The utility model relates to mechanical type self-locking screw.
Background technique
The kind of chek bolt has a variety of, and the most frequently used is bullet pad is to play anti-loosing effect, but effect is general.Also useful anaerobic adhesive is applied on screw rod, and effect is fine, but non-refractory, and have certain shelf-life.Also there is the method by mechanical damage, destroy bolt key structure and come locking, but have the problem existence being difficult to take off.
Summary of the invention
The purpose of this utility model is to provide mechanical type self-locking screw, by combinationally using of the bolt of polymorphic structure, nut and special-shaped bullet pad, reaches the target of a forever locking, and can untie as required and again lock.
?for achieving the above object, the utility model provides following technological scheme: mechanical type self-locking screw, comprises bolt, nut, special-shaped bullet pad, and on the screw rod of bolt, cover has special-shaped bullet pad, then is screwed into nut on screw rod; There is the continuously arranged gear structure a of a circle in the face that bolt head contacts with screw rod, there is the continuously arranged gear structure b of a circle nut above and below, and special-shaped bullet pad is the broadside bullet mat structure of spring shape, has certain thickness, upper surface has saw tooth structure c1, and lower surface has saw tooth structure c2; Gear structure and saw tooth structure are class right-angled triangle, inequilateral trapezium structure, and the two ends on gear structure and saw tooth structure bottom surface are front inlet side and locking end, and front inlet side interior angle degree is less than angle in locking end.
Further, the upper and lower surface of nut has a circle continuously arranged gear structure b and the face that bolt head contacts with screw rod to have a circle continuously arranged gear structure a orientation contrary, and gear structure b is arranged clockwise, and gear structure a is just arranged counterclockwise.
Further, the upper surface saw tooth structure c1 of special-shaped bullet pad is contrary with lower surface saw tooth structure c2 orientation, and upper surface is arranged counterclockwise, and lower surface is just arranged clockwise.
Further, when nut rotates clockwise, the advance end in contact of the front inlet side of nut gear structure b and the upper surface saw tooth structure c1 of special-shaped bullet pad, and rotate smoothly;
Further, meanwhile, the front inlet side of gear structure a on bolt head and screw rod surface of contact and the advance end in contact of the lower surface saw tooth structure c2 of special-shaped bullet pad, two groups of gears are by extruding, and vertical downward movement, perforation docking is closed up.
Further, after nut is tightened smoothly, nut gear structure b and special-shaped bullet pad upper surface saw tooth structure c1, the gear structure a on bolt head and screw rod surface of contact and special-shaped bullet pad lower surface saw tooth structure c2 has contact with each other, and is in a perforation and docks the state of closing up.
Further, special-shaped bullet is paid somebody's debt and expected repayment later as active force upper and lower while that nut and bolt providing, ensure that perforation docks the effect of closing up.
Further, after perforation docking is closed up, the locking end of nut gear structure b and the locking end in contact of special-shaped bullet pad upper surface saw tooth structure c1.
Further, the locking end of gear structure a on bolt head and screw rod surface of contact and the locking end in contact of special-shaped bullet pad lower surface saw tooth structure c2.
Further, the angle formed due to gear and sawtooth surface of contact and bottom surface is excessive, and almost reach vertical, have again special-shaped bullet pad to provide the active force of about for it, so two groups of surface of contact are lock state, thus nut cannot realize rotating counterclockwise.
Further, the upper surface saw tooth structure c1 of special-shaped bullet pad can be arranged on a circle of special-shaped bullet pad end face, and is combined with nut.
Further, the lower surface saw tooth structure c2 of special-shaped bullet pad can play on a circle of rebasing being arranged in abnormity, is combined with it by the surface of contact of bolt head and screw rod.
Further, there is saw tooth structure in the face at special-shaped bullet pad upper surface and lower surface two ends, and intermediate portion does not have saw tooth structure.
Further, the minimum number of turns of special-shaped bullet pad is no less than two circles, for top and bottom provide the function of locking, does not set the number of turns upper limit.
Further, when needing to take off nut, only by special-shaped bullet pad directly to pressing down, special-shaped bullet pad saw tooth structure c1 just need can be allowed to be separated with nut gear structure b, thus can nut to be taken off.
Further, for the front inlet side direction of advance on gear structure and saw tooth structure, the gear structure b on nut is arranged clockwise.
Further, for the front inlet side direction of advance on gear structure and saw tooth structure, the gear structure a of bolt head and screw rod surface of contact is arranged counterclockwise.
Further, for the front inlet side direction of advance on gear structure and saw tooth structure, special-shaped bullet pad upper surface saw tooth structure c1 is arranged counterclockwise.
Further, for the front inlet side direction of advance on gear structure and saw tooth structure, special-shaped bullet pad lower surface saw tooth structure c2 is arranged clockwise.
Further, bolt head is through widening treatment, and its diameter is greater than the diameter of fixture hole, also plays the fixing effect of contact after special-shaped bullet pad loaded onto by cover, and nut is equally also through widening treatment, and the width of itself and bolt head is much the same.
Further, special-shaped bullet pad is after being inserted in the screw rod of bolt, and nut, together through the hole of fixation, after arriving the other end, is screwed into screw rod and tightens, completing locking overall process by itself and screw rod.
Further, arranging structure and the arrangement mode of gear structure and saw tooth structure have particular specification, and the effect of such guarantee self-locking is implemented, otherwise will not have the target of locking.
Further, the arranging structure of gear structure and saw tooth structure be nut and bolt each other one group of opposite direction arrange, special-shaped bullet pad above with nut and below with the reciprocal arrangement each other of bolt head surface of contact.
Further, the upper and lower surface of nut has the continuously arranged gear structure b of a circle to be single or double.
Further, nut, bolt, special-shaped bullet pad combine by entirety the object reaching locking.
Further, the shape of gear structure and saw tooth structure can also be that inequilateral is trapezoidal, and same front inlet side interior angle degree is less than angle in locking end and plays locking effect.
Further, when nut rotates clockwise, special-shaped bullet pad is in and slides and do not have lockup state.
Further, nut moves downward clockwise, and special-shaped bullet pad is also downward until be fixed by compression.
Further, by the stretchability up and down of special-shaped bullet pad, allow it can adapt to the gear structure of different amount and the angle change of saw tooth structure.
Further, make the diameter overstriking of screw rod on bolt by increasing special-shaped bullet pad, but bolt head and nut diameter are still greater than the diameter of fixation aperture.
Further, when cannot continue downward again bottom nut is depressed into, nuts and bolt be locked by special-shaped bullet pad.
Further, the upper surface saw tooth structure c1 of special-shaped bullet pad and lower surface saw tooth structure c2 also can be covered with the whole special-shaped upper and lower surface of bullet pad.
Further, abnormity plays the stretchability that spacer has spring, has the features such as the width of pad, thickness simultaneously, ensures that it is when nut loosening situation occurs, have enough torsion to maintain static to maintain nut.
Further, its elasticity ensure that in the process that nut is rotated down smoothly cannot counterclockwise movement, in rundown process, just serve locking object.
Further, gear structure and saw tooth structure are complementary, and the two shape almost reaches unanimity, and object has a good contact.
Further, diameter, the number of turns of special-shaped bullet pad, height etc., can regulate, set according to actual needs.
Further, the minimum number of turns of special-shaped bullet pad is no less than two circles, for top and bottom provide the function of locking, does not set the number of turns upper limit.
Further, in the middle part of special-shaped bullet pad, can protrusion be provided with, use when it is pressed down, unclamp nut to facilitate.
Further, the outside thread of nut inner thread on the screw rod of bolt is combined and upper lower knob moves, and the surface one that nut surface one circle, bolt contact with screw rod is enclosed and is combined with the face of special-shaped bullet pad.
Further, when all there is a gear structure on the two sides of nut, the gear on two sides is the consistent layout of clockwise direction.
Further, owing to adding special-shaped bullet pad, it has certain altitude, and this just causes spiro rod length to shorten, so the length of screw rod also will increase accordingly, just can better meet demand during connection.
Further, the material that bolt connection piece is conventional is middle-carbon steel and low carbon steel, and also can adopt special steel, alloyed steel, Cuprum alloy, aluminum alloy etc., bolt head is generally hexagon head structure, is subdivided into: square toes, countersunk head, semicircle are first-class.
Good result of the present utility model is: mechanical type self-locking screw, by architecture advances, can solve the problem easily loosened when existing bolt uses, and locking effect has surmounted the effect of bullet pad.Compared with adding the jam nut of anaerobic adhesive, it is more high temperature resistant, can repeatedly opening and closing repeatedly, and effect is still good.The line body width of abnormity bullet pad is at about 2-3mm, and thickness is at about 1-2mm, and the screw diameter of increase is no more than 6mm, so the width that bolt head increases is also few, natural cost can not increase too much.But locking effect is very good, and can repeatedly open closed.During use, without the need to additionally increasing equipment or instrument, directly use.Its excellent locking effect and when not increasing excessive cost, will have large market prospect.
Accompanying drawing explanation
Fig. 1 is side structure schematic diagram of the present utility model.
Fig. 2 is side structure schematic diagram of the present utility model.
Fig. 3 is bolt of the present utility model, nut plan view.
Fig. 4 is special-shaped bullet pad side structure schematic diagram of the present utility model.
Fig. 5 is side structure schematic diagram of the present utility model.
Fig. 6 is special-shaped bullet pad side structure schematic diagram of the present utility model.
Fig. 7 is perspective view of the present utility model.
In figure, description of reference numerals is as follows:
1 bolt
12 screw rods
13 gear structure a
2 nuts
21 gear structure b
3 special-shaped bullet pads
31 saw tooth structure c1
32 saw tooth structure c2
4 gears and sawtooth
41 front inlet sides
42 locking ends.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As shown in figs. 1-7, mechanical type self-locking screw, comprises bolt 1, nut 2, special-shaped bullet pad 3, and on the screw rod 12 of bolt 1, cover has special-shaped bullet pad 3, then is screwed into nut 2 on screw rod 12; There is the continuously arranged gear structure a13 of a circle in the face that bolt 1 head 11 contacts with screw rod 12, there is the continuously arranged gear structure b21 of a circle nut 2 above and below, abnormity bullet pad 3 is the broadside bullet mat structure of spring shape, there is certain thickness, upper surface has saw tooth structure c1(31), lower surface has saw tooth structure c2(32); Gear structure and saw tooth structure are class right-angled triangle, inequilateral trapezium structure, and the two ends on gear and sawtooth 4 bottom surface are front inlet side 41 and locking end 42, and in front inlet side 41, angle is less than angle in locking end 42.Front inlet side 41 and locking end 42 are applicable to the description of gear on bolt 1, nut 2, special-shaped bullet pad 3 and sawtooth.
In normal using process, the overall structure of mechanical type self-locking screw 1 is that special-shaped bullet pad 3 is enclosed within the screw rod 12 of bolt 1, the ragged edge of screw rod 12 also on have nut 2.During use, nut 2 is backed out, the screw rod 12 with special-shaped bullet pad 3 directly through the aperture on the object needing to be fixed.Be now screw rod 12 together with special-shaped bullet pad 3 through aperture, then on the nut 2 screwed down on the screw rod 12 of bolt 1, till tightening.In time wanting to take off nut 2, only need by special-shaped bullet pad 3 to pressing down, just can realize being separated of special-shaped bullet pad 3 and nut 2, thus take off nut 2.Its concrete surface of contact is, the internal thread of nut 2 contacts with the outside thread of screw rod 12, combines, there is saw tooth structure c1(31 on the surface of nut 2 with special-shaped bullet pad 3 upper surface) contact, fixing, the surface of contact of bolt 1 and screw rod 12 and special-shaped bullet pad 3 lower surface saw tooth structure c2(32) contact, fix.In use, time nut 2 rotates downward, special-shaped bullet pad 3 is in the state do not locked, and it can move along with the motion of nut 2.Only have when arriving bottom, itself and nut 2 and bolt 1 just fully achieve the state of locking.
Abnormity bullet pad 3 only has on the surface at two ends and is furnished with saw tooth structure 4, and there is a circle one end, and respective orientation is contrary.The shape of abnormity bullet pad 3 is spring shape, specifically sees, is suitable with the width of bullet pad, and thickness is also suitable with the thickness of bullet pad, but the effect of entirety is spring, and two sides all has the locking structure of sawtooth 4.But as required, the upper and lower surface of abnormity bullet pad 3 all can all be covered with saw tooth structure 4, object be special-shaped bullet pad 3 in use, highly cause bolt 1 screw rod 12 fall short of, need to cut short special-shaped bullet pad 3, docking of bolt 1 and nut 2 could be met.In this case, special-shaped bullet pad 3 is two-sided is covered with sawtooth 4 entirely, just can cut one section of special-shaped bullet pad 3 with scissors, reduces height, thus meets actual use.
Claims (11)
1. mechanical type self-locking screw, is characterized in that: comprise bolt, nut, special-shaped bullet pad, and on the screw rod of bolt, cover has special-shaped bullet pad, then is screwed into nut on screw rod; There is the continuously arranged gear structure a of a circle in the face that bolt head contacts with screw rod, there is the continuously arranged gear structure b of a circle nut above and below, and special-shaped bullet pad is the broadside bullet mat structure of spring shape, has certain thickness, upper surface has saw tooth structure c1, and lower surface has saw tooth structure c2; Gear structure and saw tooth structure are class right-angled triangle, inequilateral trapezium structure, and the two ends on gear structure and saw tooth structure bottom surface are front inlet side and locking end, and front inlet side interior angle degree is less than angle in locking end.
2. mechanical type self-locking screw according to claim 1, it is characterized in that: the upper and lower surface of nut has a circle continuously arranged gear structure b and the face that bolt head contacts with screw rod to have a circle continuously arranged gear structure a orientation contrary, gear structure b is arranged clockwise, and gear structure a is just arranged counterclockwise.
3. mechanical type self-locking screw according to claim 1, is characterized in that: the upper surface saw tooth structure c1 of special-shaped bullet pad is contrary with lower surface saw tooth structure c2 orientation, and upper surface is arranged counterclockwise, and lower surface is just arranged clockwise.
4. mechanical type self-locking screw according to claim 1, is characterized in that: when nut rotates clockwise, the advance end in contact of the front inlet side of nut gear structure b and the upper surface saw tooth structure c1 of special-shaped bullet pad, and rotates smoothly; Meanwhile, the front inlet side of gear structure a on bolt head and screw rod surface of contact and the advance end in contact of the lower surface saw tooth structure c2 of special-shaped bullet pad, two groups of gears are by extruding, and vertical downward movement, perforation docking is closed up.
5. mechanical type self-locking screw according to claim 1, it is characterized in that: after nut is tightened smoothly, nut gear structure b and special-shaped bullet pad upper surface saw tooth structure c1, gear structure a on bolt head and screw rod surface of contact and special-shaped bullet pad lower surface saw tooth structure c2 has contact with each other, be in a perforation and dock the state of closing up, abnormity bullet is paid somebody's debt and expected repayment later as active force upper and lower while that nut and bolt providing, ensure that perforation docks the effect of closing up.
6. mechanical type self-locking screw according to claim 1, it is characterized in that: after perforation docking is closed up, the locking end of nut gear structure b and the locking end in contact of special-shaped bullet pad upper surface saw tooth structure c1, the locking end of gear structure a on bolt head and screw rod surface of contact and the locking end in contact of special-shaped bullet pad lower surface saw tooth structure c2, the angle formed due to gear and sawtooth surface of contact and bottom surface is excessive, almost reach vertical, special-shaped bullet pad is had again to provide the active force of about for it, so two groups of surface of contact are lock state, thus nut cannot realize rotating counterclockwise.
7. mechanical type self-locking screw according to claim 1, is characterized in that: the upper surface saw tooth structure c1 of special-shaped bullet pad can be arranged on a circle of special-shaped bullet pad end face, and is combined with nut; The lower surface saw tooth structure c2 of abnormity bullet pad can play on a circle of rebasing being arranged in abnormity, combined with it by the surface of contact of bolt head and screw rod, the face at namely special-shaped bullet pad upper surface and lower surface two ends there is saw tooth structure, intermediate portion does not have saw tooth structure, that is: the minimum number of turns of special-shaped bullet pad is no less than two circles.
8. mechanical type self-locking screw according to claim 1, is characterized in that: when needing to take off nut, only by special-shaped bullet pad directly to pressing down, special-shaped bullet pad saw tooth structure c1 just need can be allowed to be separated with nut gear structure b, thus can take off nut.
9. mechanical type self-locking screw according to claim 1, it is characterized in that: for the front inlet side direction of advance on gear structure and saw tooth structure, gear structure b on nut is arranged clockwise, the gear structure a of bolt head and screw rod surface of contact is arranged counterclockwise, abnormity bullet pad upper surface saw tooth structure c1 is arranged counterclockwise, and special-shaped bullet pad lower surface saw tooth structure c2 is arranged clockwise.
10. mechanical type self-locking screw according to claim 1, it is characterized in that: bolt head is through widening treatment, its diameter is greater than the diameter of fixture hole, the fixing effect of contact is also played after special-shaped bullet pad loaded onto by cover, nut is equally also through widening treatment, and the width of itself and bolt head is much the same.
11. mechanical type self-locking screws according to claim 1, is characterized in that: special-shaped bullet pad is after being inserted in the screw rod of bolt, and nut, together through the hole of fixation, after arriving the other end, is screwed into screw rod and tightens, completing locking overall process by itself and screw rod.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483872.3U CN204099384U (en) | 2014-08-27 | 2014-08-27 | Mechanical type self-locking screw |
| JP2015004027U JP3200554U (en) | 2014-08-27 | 2015-08-07 | Mechanical automatic fastening bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483872.3U CN204099384U (en) | 2014-08-27 | 2014-08-27 | Mechanical type self-locking screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204099384U true CN204099384U (en) | 2015-01-14 |
Family
ID=52267814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420483872.3U Withdrawn - After Issue CN204099384U (en) | 2014-08-27 | 2014-08-27 | Mechanical type self-locking screw |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3200554U (en) |
| CN (1) | CN204099384U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235160A (en) * | 2014-08-27 | 2014-12-24 | 刘兴丹 | Mechanical self-locking bolt |
| CN110906191A (en) * | 2019-11-07 | 2020-03-24 | 深圳市科瑞普光电股份有限公司 | Panel light capable of being mounted on surface |
| CN114962420A (en) * | 2022-06-23 | 2022-08-30 | 江苏正恺电子科技有限公司 | Integrated nut retaining mechanism and retaining method thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608851A (en) * | 2018-06-06 | 2018-10-02 | 博众精工科技股份有限公司 | Automobile batteries retaining mechanism |
| EP3850147B1 (en) | 2018-11-14 | 2022-06-15 | Samsung Electronics Co., Ltd. | Water transmission device and washing machine including the same |
| KR20200080620A (en) | 2018-12-27 | 2020-07-07 | 삼성전자주식회사 | Stud |
| KR102210262B1 (en) * | 2019-04-30 | 2021-02-01 | 두산중공업 주식회사 | Bolt system |
-
2014
- 2014-08-27 CN CN201420483872.3U patent/CN204099384U/en not_active Withdrawn - After Issue
-
2015
- 2015-08-07 JP JP2015004027U patent/JP3200554U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235160A (en) * | 2014-08-27 | 2014-12-24 | 刘兴丹 | Mechanical self-locking bolt |
| CN110906191A (en) * | 2019-11-07 | 2020-03-24 | 深圳市科瑞普光电股份有限公司 | Panel light capable of being mounted on surface |
| CN114962420A (en) * | 2022-06-23 | 2022-08-30 | 江苏正恺电子科技有限公司 | Integrated nut retaining mechanism and retaining method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3200554U (en) | 2015-10-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150114 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |