CN105240380B - One-directional rotation structure for anti-loose mechanical retention mechanism - Google Patents
One-directional rotation structure for anti-loose mechanical retention mechanism Download PDFInfo
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- CN105240380B CN105240380B CN201510633255.6A CN201510633255A CN105240380B CN 105240380 B CN105240380 B CN 105240380B CN 201510633255 A CN201510633255 A CN 201510633255A CN 105240380 B CN105240380 B CN 105240380B
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Abstract
The present invention relates to a kind of one-directional rotation structure for anti-loose mechanical retention mechanism.It solves existing retention mechanism and the technical problem such as easily occurs loosening.Anti-loose machinery retention mechanism includes the body of bolt, it is opposite with the thread segment and the hand of spiral of two thread segments that clamp nut and anti-loosing nut screw thread are connected respectively with two on the body of bolt, this one-directional rotation structure includes being set in the regulation ring on the body of bolt and between clamp nut and anti-loosing nut, is equipped between the clamp nut bottom and regulation ring upper end and the second check unit is equipped between the first check unit and/or the clamp nut sidepiece and regulation ring sidepiece.Advantage is：It can realize the one-directional rotation of clamp nut and regulation ring, bonding strength is high, and machine components rotation direction is adjusted reliably, and stability is good, can prevent occurring loosening phenomenon during connection, it is ensured that the performance with the anti-loose mechanical retention mechanism of anti-loose function is realized.
Description
Technical field
The invention belongs to technical field of fastening, turns more particularly, to a kind of for anti-loose the unidirectional of mechanical retention mechanism
Dynamic structure.
Background technology
Screw pair retention mechanism is a kind of retention mechanism of common thread fitting, mutual the most common are bolts and nuts
The fastening connection piece of cooperation, the threaded connection to mechanical equipment connector is realized by the screw thread of bolt.The company of bolts and nuts
It is good to connect performance, it is simple in structure, it is widely used in machinery equipment field, but bolts and nuts are there is easy the defects of loosening,
The gap that connector is frequently shaken with equipment increases, and causes bolts and nuts to loosen, or even comes off, so for some machines
Tool easily occurs connector and is mutually disengaged phenomenon when connecting, serious that security incident easily occurs.
Existing in the prior art in order to solve the problems, such as, people have carried out long-term exploration, it is proposed that miscellaneous solution
Scheme.For example, Chinese patent literature discloses a kind of mutually compact form Anti-loose bolt [application number：201220063479.X], by spiral shell
Bar, inner nut, outer nut composition.Screw flight is forward and reverse screw thread, and the internal thread of inner nut is forward screw thread, outer nut
Internal thread is reverse thread.Inner nut and outer nut are equipped with 2~12 anti-slip tanks to top surface.Anti-slip tank is gradual counterclockwise
Elevated structure.
The problem of such scheme easily loosens when improving existing bolts and nuts connection to a certain extent, though such scheme
So in inner nut and outer nut to being equipped with several anti-slip tanks on top surface, but the screw thread starting point of inner nut, outer nut, bolt is all
It is uncertain, anti-slip tank is the purpose difficult to realize that is mutually stuck.Even if can accidentally be stuck, still, the program
It is low to still remain bonding strength, inner nut gap or inner nut easily occurs with outer nut and easily promotes outer nut to shrink back when shaking big
The problem of causing to loosen between inner nut and connector, and ultimately result in outer nut and inner nut disengaging bolt situation generation.
The content of the invention
Regarding the issue above, the present invention provides a kind of design reasonable, simple in structure, the anti-loosing that can be prevented
The one-directional rotation structure of tool retention mechanism.
To reach above-mentioned purpose, present invention employs following technical proposal：This is used for the list of anti-loose mechanical retention mechanism
To rotational structure, anti-loose machinery retention mechanism includes the body of bolt, on the body of bolt with two respectively with clamp nut
The hand of spiral of the thread segment being connected with anti-loosing nut screw thread and two thread segments is opposite, it is characterised in that this one-directional rotation
Structure includes being set in regulation ring on the body of bolt and between clamp nut and anti-loosing nut, under the clamp nut
It is equipped between end and regulation ring upper end between the first check unit and/or the clamp nut sidepiece and regulation ring sidepiece
Equipped with the second check unit.Preferably, it is connected between clamp nut here and regulation ring by one-directionally rotating structure, works as compression
Nut has the clamp nut described in when circumferentially rotating movement or movement tendency away from anti-loosing nut side can be relative to adjusting
Ring circumferentially rotates and the pressure described in when clamp nut has and circumferentially rotates movement or movement tendency towards anti-loosing nut side
Tight nut is circumferentially positioned with regulation ring by one-directionally rotating structure, and tune can be made by being equipped between the regulation ring and anti-loosing nut
Ring and the location structure of anti-loosing nut positioning are saved, in use, circumferentially turning when clamp nut is directed away from anti-loosing nut side
Clamp nut described in when dynamic movement or movement tendency can be circumferentially rotated relative to regulation ring, i.e. clamp nut direction locking direction
During movement, clamp nut can be circumferentially rotated relative to regulation ring so that clamp nut is separated from each other with regulation ring, when being compacted thing
Body exists, and this athletic meeting is prevented from certain section, and anti-loosing nut is because one-directionally rotate structure without departing from the body of bolt；When
Clamp nut have towards anti-loosing nut side circumferentially rotate movement or movement tendency when described in clamp nut pass through it is unidirectional
Rotational structure is circumferentially positioned with regulation ring, simultaneously as regulation ring and anti-loosing nut are circumferentially located in by circumferential positioning structure
Together, and clamp nut screw thread and anti-loosing nut screw thread are opposite direction screw threads, so that clamp nut can not be towards locking
De- nut side circumferentially rotates, but the rotation potential energy of clamp nut by one-directionally rotate the adjusted ring of structure passed to it is anti-loose
Nut, has driven anti-loosing nut to circumferentially rotate movement or movement tendency to clamp nut side, so allows for compressing spiral shell
Mother is in continuous self-tightening process all the time, the auto-lock function of mechanism is then realized, simultaneously because anti-loosing nut and regulation ring
Circumferentially positioned and due to one-directional rotation structure presence causes anti-loosing nut can not depart from the body of bolt.
It is used in above-mentioned in the one-directional rotation structure of anti-loose mechanical retention mechanism, first check unit includes
The compression helicoid that is arranged on clamp nut one end and is spirally distributed and it is arranged on regulation ring one end and is spirally distributed
Cooperation helicoid, the compression helicoid with coordinate helicoid match composition one-directional rotation helicoid pair.When compression spiral shell
When mother towards anti-loosing nut side with movement or movement tendency is circumferentially rotated, since compression helicoid here is with coordinating spiral shell
Radial facing abuts can be so that clamp nut and regulation ring be circumferentially positioned, it is clear that and it is varied to one-directionally rotate the structure of structure,
Field technology personnel are also an option that other structures.
In the above-mentioned one-directional rotation structure for being used for anti-loose mechanical retention mechanism, described compression helicoid one end with
Formed between the body of bolt and compress spiral section, formed between described cooperation helicoid one end and the body of bolt and coordinate spiral section,
And the compression spiral section described in when clamp nut is circumferentially positioned with regulation ring is with coordinating spiral section to abut.It is i.e. logical
Cross compression spiral section and realize that clamp nut is mutually located with regulation ring with coordinating spiral section to abut.
It is used in above-mentioned in the one-directional rotation structure of anti-loose mechanical retention mechanism, the compression helicoid is with coordinating
Helicoid is involute helicoid.The irreversibility technical principle moved by involute helicoid, so as to fulfill unidirectional
The function of movement.
It is used in above-mentioned in the one-directional rotation structure of anti-loose mechanical retention mechanism, the clamp nut end is equipped with
First involute conveyor screw, and the first involute conveyor screw end face forms above-mentioned compression helicoid；The adjusting
Ring end has the second involute conveyor screw to match with the first involute conveyor screw, and the second involute conveyor screw
End face forms above-mentioned cooperation helicoid.
Here the first involute conveyor screw is inserted in annular groove and cooperated with the second involute conveyor screw, so
Improve the stability of connection.
It is used in above-mentioned in the one-directional rotation structure of anti-loose mechanical retention mechanism, the compression helicoid and cooperation
The thread segment hand of thread spiral being connected in the hand of spiral and the body of bolt of helicoid with clamp nut is identical.It is this ensure that single
Meet that this retention mechanism puts the needs of anti-loose to rotation direction.
It is used in above-mentioned in the one-directional rotation structure of anti-loose mechanical retention mechanism, the end of the regulation ring is circumferential
Outside has annular groove, and clamp nut one end outer circumferential has the annular bead to match with annular groove, and
Second check unit is arranged between annular groove and annular bead.
It is used in above-mentioned in the one-directional rotation structure of anti-loose mechanical retention mechanism, second check unit includes
It is at least one to be circumferentially provided between annular bead and annular groove and there is the wedge groove of width portion and narrow portion, the wedge groove
It is interior to be equipped with rolling element, and the rolling element is connected with narrow portion side movement tendency that rolling element can be made to have towards wedge groove
Elastic support structure.Structure is one-directionally rotated using disengaging type, when clamp nut is towards during the movement of locking direction, rolling element is rubbed
The effect of power, is pulled to part wider in wedge groove, and no longer wedging is in wedge groove, and at this moment clutch is in discrete state,
When clamp nut is directed away from the movement of locking direction, rolling element is realized compression by wedging by the effect of frictional force in wedge groove
Nut is circumferentially positioned with regulation ring.
It is used in above-mentioned in the one-directional rotation structure of anti-loose mechanical retention mechanism, the annular groove week is inwardly
With some inwardly protruded raised bodies, and above-mentioned wedge groove is formed between two neighboring raised body.
It is used in above-mentioned in the one-directional rotation structure of anti-loose mechanical retention mechanism, the elastic support structure includes
The support spring being arranged in wedge groove, and described support spring one end, against being arranged in raised body, the other end acts on
On rolling element.
Compared with prior art, the advantages of being originally used for the one-directional rotation structure of anti-loose mechanical retention mechanism is：If
Meter is reasonable, simple in structure, can realize the one-directional rotation of clamp nut and regulation ring, bonding strength is high, machine components rotation direction
Adjust reliably, stability is good, can prevent occurring loosening phenomenon during connection, it is ensured that have the anti-loose mechanical fasteners of anti-loose function
The performance of mechanism is realized.
Brief description of the drawings
Fig. 1 is the surface structure schematic diagram of embodiment provided by the invention.
Fig. 2 is the half section schematic of embodiment provided by the invention.
Fig. 3 is the clamp nut half section schematic of embodiment provided by the invention.
Fig. 4 is the overlooking the structure diagram of the clamp nut of embodiment provided by the invention.
Fig. 5 is the half section schematic of the regulation ring of embodiment provided by the invention.
Fig. 6 is the overlooking the structure diagram of the regulation ring of embodiment provided by the invention.
Fig. 7 is the present invention looks up structural representation of the regulation ring of embodiment provided by the invention.
Fig. 8 is the half section schematic of the second check unit of embodiment provided by the invention.
In figure, the body of bolt 1, clamp nut 2, anti-loosing nut 3, regulation ring 4, the first check unit 5, compression helicoid
51st, coordinate helicoid 53, compress spiral section 54, the first involute conveyor screw 55, coordinate spiral section 56, the second involute spiral shell
Revolve body 57, the second check unit 6, annular groove 61, annular bead 62, wedge groove 63, rolling element 64, raised body 65, support bullet
Spring 66, one-directional rotation helicoid pair 10.
Embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in Figs. 1-2, this one-directional rotation structure for being used for anti-loose mechanical retention mechanism, anti-loose machinery retention mechanism
Including the body of bolt 1, there are two thread segments and two being connected respectively with clamp nut 2 and 3 screw thread of anti-loosing nut on the body of bolt 1
The hand of spiral of a thread segment is on the contrary, this one-directional rotation structure includes being set on the body of bolt 1 and positioned at clamp nut 2 and locking
Regulation ring 4 between de- nut 3, be equipped between 4 upper end of 2 bottom of clamp nut and regulation ring the first check unit 5 and/or
The second check unit 6 is equipped between 4 sidepiece of 2 sidepiece of clamp nut and regulation ring, it is preferable that clamp nut 2 here is with adjusting
Be connected between ring 4 by one-directionally rotating structure, when clamp nut 2 have away from 3 side of anti-loosing nut circumferentially rotate movement or
Clamp nut 2 can be circumferentially rotated relative to regulation ring 4 and when clamp nut 2 has towards anti-loosing nut 4 one during movement tendency
Clamp nut 2 passes through circumferentially positioned, the regulation ring 4 that one-directionally rotates structure and regulation ring 4 when side circumferentially rotates movement or movement tendency
The location structure that regulation ring 4 can be made to be positioned with anti-loosing nut 3 is equipped between anti-loosing nut 3, in use, working as clamp nut
2 are directed away from clamp nut 2 when 3 side of anti-loosing nut circumferentially rotates movement or movement tendency can be circumferential relative to regulation ring 4
Rotate, i.e., towards during the movement of locking direction, clamp nut 2 can circumferentially rotate clamp nut 2 relative to regulation ring 4 so that compress
Nut 2 is separated from each other with regulation ring 4, is existed when being compacted object, this athletic meeting is prevented from certain section, anti-loosing nut
3 because one-directionally rotate structure 5 without departing from the body of bolt 1；Circumferentially rotated when clamp nut 2 has towards 3 side of anti-loosing nut
Clamp nut 2 is circumferentially positioned by one-directionally rotating structure 5 and regulation ring 4 when movement or movement tendency, simultaneously because circumferentially positioned
Structure 6 by regulation ring 4 it is circumferentially positioned with anti-loosing nut 3 together with, and 2 screw thread of clamp nut is with 3 screw thread of anti-loosing nut
Opposite direction screw thread, so that clamp nut 2 can not be circumferentially rotated towards 3 side of anti-loosing nut, but the rotation of clamp nut 2
Potential energy has passed to anti-loosing nut 3 by one-directionally rotating the adjusted ring 4 of structure 5, has driven anti-loosing nut 3 to clamp nut
2 sides circumferentially rotate movement or movement tendency, so allow for clamp nut 2 and are in continuous self-tightening process all the time, then
The auto-lock function of mechanism is realized, simultaneously because anti-loosing nut 3 is circumferentially positioned with regulation ring 4 and due to one-directionally rotating structure 5
Presence cause anti-loosing nut 3 can not depart from the body of bolt 1.
Specifically, as illustrated in figs. 2-7, the first check unit 5 here includes being arranged on 2 one end of clamp nut and helically
The compression helicoid 51 and be arranged on 4 one end of regulation ring and the cooperation helicoid 53 being spirally distributed that shape is distributed, compress spiral
Face 51 forms one-directional rotation helicoid pair 10 with coordinating helicoid 53 to match, when clamp nut 2 has towards anti-loosing nut 3
When side circumferentially rotates movement or movement tendency, since compression helicoid 51 here is with coordinating helicoid 53 to abut and can make
Obtain clamp nut 2 and regulation ring 4 is circumferentially positioned, it is clear that the structure of one-directional rotation structure 5 is varied, those skilled in the art
It is also an option that other structures.Here formed between 51 one end of compression helicoid and the body of bolt 1 and compress spiral section 54, coordinated
Formed between 53 one end of helicoid and the body of bolt 1 and coordinate spiral section 56, and when clamp nut 2 and regulation ring 4 are circumferentially positioned
Spiral section 54 is compressed with coordinating spiral section 56 to abut, i.e., coordinates spiral break by compressing spiral section 54 and being resisted against
Until it can not be rotated further on face 56 and according to 2 screw-threaded coupling direction of clamp nut, so as to fulfill clamp nut 2 and regulation ring 4
It is mutually located.Preferably, compression helicoid 51 here is involute helicoid with coordinating helicoid 53, that is, passes through helicoid
The irreversibility technical principle of movement, so as to fulfill the function of one-way movement.
Preferably, 2 end of clamp nut here is equipped with the first involute conveyor screw 55, and the first involute conveyor screw 55
End face forms above-mentioned compression helicoid 51, and 4 end of regulation ring has second to match with the first involute conveyor screw 55 gradually
Burst at the seams conveyor screw 57, and 57 end face of the second involute conveyor screw forms above-mentioned cooperation helicoid 53.I.e. above-mentioned second gradually opens
Spironeme 57 is inserted on the first involute conveyor screw 55 and until cooperation helicoid 53 is resisted against on compression helicoid 51 and nothing
Method is rotated further according to 2 screw-threaded coupling direction of clamp nut, the stability of connection is so improved, in order to ensure one-directional rotation side
To meeting the needs of this retention mechanism is anti-loose, the hand of spiral and bolt that compress helicoid 51 and coordinate helicoid 53 here
It is identical with the thread segment hand of thread spiral that clamp nut 2 is connected on body 1.
Further, as shown in Fig. 1-2 and Fig. 8, the end outer circumferential of the regulation ring 4 in the present embodiment has annular
Groove 61,2 one end outer circumferential of clamp nut have the annular bead 62 to match with annular groove 61, and the second check unit
6 are arranged between annular groove 61 and annular bead 62.Wherein, the second check unit 6 here is set including at least one circumferential direction
Put between annular bead 62 and annular groove 61 and there is the wedge groove 63 of wide portion and narrow portion, rolling element is equipped with wedge groove 63
64, and rolling element 64 is connected with the resilient support knot for the narrow portion side movement tendency that rolling element 64 can be made to have towards wedge groove 63
Structure, structure is one-directionally rotated using disengaging type, and when clamp nut 2 is towards during the movement of locking direction, rolling element 64 is made by frictional force
With, part wider in wedge groove 63 is pulled to, no longer wedging is in wedge groove 63, and at this moment clutch is in discrete state, when
When clamp nut 2 is directed away from the movement of locking direction, effect by wedging wedge groove 63 in realization of the rolling element 64 by frictional force
Clamp nut 2 and regulation ring 4 are circumferentially positioned, it is preferable that annular groove here has some inwardly protruded for 61 weeks inwardly
Raised body 65, and above-mentioned wedge groove 63 is formed between two neighboring raised body 65, elastic support structure here includes setting
Support spring 66 in wedge groove 63, and 66 one end of support spring, against being arranged in raised body 65, the other end acts on rolling
On kinetoplast 64.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can do various modifications or additions to described specific embodiment or replace in a similar way
Generation, but without departing from spirit of the invention or beyond the scope of the appended claims.
It is unidirectional single that although the body of bolt 1, clamp nut 2, anti-loosing nut 3, regulation ring 4, first is used more herein
Member 5, compress helicoid 51, coordinate helicoid 53, compress spiral section 54, the first involute conveyor screw 55, coordinate spiral section
56th, the second involute conveyor screw 57, the second check unit 6, annular groove 61, annular bead 62, wedge groove 63, rolling element 64,
The terms such as raised body 65, support spring 66, one-directional rotation helicoid pair 10, but it does not preclude the possibility of using other terms.
The use of these items is only for more easily describe and explain the essence of the present invention；Any type is construed as to add
Limitation all disagreed with spirit of the present invention.
Claims (6)
1. a kind of one-directional rotation structure for anti-loose mechanical retention mechanism, anti-loose machinery retention mechanism includes the body of bolt
(1), there are two thread segments being connected respectively with clamp nut (2) and anti-loosing nut (3) screw thread on the body of bolt (1)
And the hand of spiral of two thread segments is opposite, it is characterised in that this one-directional rotation structure includes being set on the body of bolt (1) and position
Regulation ring (4) between clamp nut (2) and anti-loosing nut (3), the clamp nut (2) bottom and regulation ring
(4) it is equipped between upper end between the first check unit (5) and/or the clamp nut (2) sidepiece and regulation ring (4) sidepiece
Equipped with the second check unit (6)；The end outer circumferential of the regulation ring (4) has annular groove (61), the compression
Nut (2) one end outer circumferential has the annular bead (62) to match with annular groove (61), and described second is unidirectional single
First (6) are arranged between annular groove (61) and annular bead (62)；Second check unit (6) includes at least one week
To being arranged between annular bead (62) and annular groove (61) and the wedge groove (63) with width portion and narrow portion, the wedge shape
Be equipped with rolling element (64) in groove (63), and the rolling element (64) is connected with can make rolling element (64) with towards wedge groove
(63) elastic support structure of narrow portion side movement tendency；Annular groove (61) week has some to convex inwardly
The raised body (65) risen, and above-mentioned wedge groove (63) is formed between two neighboring raised body (65)；The resilient support knot
Structure includes being arranged on support spring (66) in wedge groove (63), and the support spring (66) one end is against being arranged on protrusion
On body (65), the other end is acted on rolling element (64).
2. the one-directional rotation structure according to claim 1 for anti-loose mechanical retention mechanism, it is characterised in that described
The first check unit (5) include the compression helicoid (51) that is arranged on clamp nut (2) one end and is spirally distributed and set
Put in regulation ring (4) one end and the cooperation helicoid (53) that is spirally distributed, the compression helicoid (51) is with coordinating spiral shell
Radial facing (53), which matches, forms one-directional rotation helicoid pair (10).
3. the one-directional rotation structure according to claim 2 for anti-loose mechanical retention mechanism, it is characterised in that described
Compression helicoid (51) one end and the body of bolt (1) between formed compress spiral section (54), the cooperation helicoid (53)
Formed between one end and the body of bolt (1) and coordinate spiral section (56), and when clamp nut (2) and regulation ring (4) are circumferentially positioned
The compression spiral section (54) is with coordinating spiral section (56) to abut.
4. the one-directional rotation structure for being used for anti-loose mechanical retention mechanism according to Claims 2 or 3, it is characterised in that
The compression helicoid (51) is involute helicoid with coordinating helicoid (53).
5. the one-directional rotation structure according to claim 4 for anti-loose mechanical retention mechanism, it is characterised in that described
Clamp nut (2) end be equipped with the first involute conveyor screw (55), and first involute conveyor screw (55) end face shape
Into above-mentioned compression helicoid (51)；Described regulation ring (4) end has what is matched with the first involute conveyor screw (55)
Second involute conveyor screw (57), and second described involute conveyor screw (57) end face forms above-mentioned cooperation helicoid
(53)。
6. the one-directional rotation structure according to claim 5 for anti-loose mechanical retention mechanism, it is characterised in that described
Compression helicoid (51) and coordinate the spiral shell that is connected with clamp nut (2) in the hand of spiral and the body of bolt (1) of helicoid (53)
Line section hand of thread spiral is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510633255.6A CN105240380B (en) | 2015-09-29 | 2015-09-29 | One-directional rotation structure for anti-loose mechanical retention mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510633255.6A CN105240380B (en) | 2015-09-29 | 2015-09-29 | One-directional rotation structure for anti-loose mechanical retention mechanism |
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| Publication Number | Publication Date |
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| CN105240380A CN105240380A (en) | 2016-01-13 |
| CN105240380B true CN105240380B (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510633255.6A Active CN105240380B (en) | 2015-09-29 | 2015-09-29 | One-directional rotation structure for anti-loose mechanical retention mechanism |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285130B (en) * | 2019-07-08 | 2020-12-15 | 台州道业科技有限公司 | Quick anti-loosening fastening device and assembling and using method thereof |
| CN113007197B (en) * | 2021-03-24 | 2022-11-11 | 苏州誉高紧固系统有限公司 | Auto parts is with bolt assembly that helps anticreep |
| CN117357207B (en) * | 2023-12-05 | 2024-04-16 | 启晨(上海)医疗器械有限公司 | Conveying system for deep vein thrombosis removing device under trunk |
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| US5439337A (en) * | 1993-04-12 | 1995-08-08 | Kakimoto; Hiroshi | Lock nut |
| CN200955540Y (en) * | 2006-10-08 | 2007-10-03 | 何勇强 | Loose-free non-detachable screw nut |
| CN102506048A (en) * | 2011-08-05 | 2012-06-20 | 王大俊 | Anti-loosing clamping bolt set |
| CN203548499U (en) * | 2013-10-22 | 2014-04-16 | 北汽福田汽车股份有限公司 | Fastening assembly and vehicle with same |
| CN104196865A (en) * | 2014-09-25 | 2014-12-10 | 胡鑫 | Anti-looseness interlocking and fastening device with irregularly-shaped ratchet pad for high-speed-rail contact net |
| CN204458766U (en) * | 2015-01-30 | 2015-07-08 | 李纪明 | A kind of three-dimensional locking chek bolt group |
| CN205207389U (en) * | 2015-09-29 | 2016-05-04 | 玉环胜友工具有限公司 | A unidirectional rotating structure for locking mechanical fastening mechanism that takes off |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006028327A1 (en) * | 2004-09-09 | 2006-03-16 | Jae Won Ko | Bolt structure, and bolt and nut assembly structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5439337A (en) * | 1993-04-12 | 1995-08-08 | Kakimoto; Hiroshi | Lock nut |
| CN200955540Y (en) * | 2006-10-08 | 2007-10-03 | 何勇强 | Loose-free non-detachable screw nut |
| CN102506048A (en) * | 2011-08-05 | 2012-06-20 | 王大俊 | Anti-loosing clamping bolt set |
| CN203548499U (en) * | 2013-10-22 | 2014-04-16 | 北汽福田汽车股份有限公司 | Fastening assembly and vehicle with same |
| CN104196865A (en) * | 2014-09-25 | 2014-12-10 | 胡鑫 | Anti-looseness interlocking and fastening device with irregularly-shaped ratchet pad for high-speed-rail contact net |
| CN204458766U (en) * | 2015-01-30 | 2015-07-08 | 李纪明 | A kind of three-dimensional locking chek bolt group |
| CN205207389U (en) * | 2015-09-29 | 2016-05-04 | 玉环胜友工具有限公司 | A unidirectional rotating structure for locking mechanical fastening mechanism that takes off |
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| Publication number | Publication date |
|---|---|
| CN105240380A (en) | 2016-01-13 |
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