CN105257666B - The anti-loose mechanical retention mechanism of self-tightening type - Google Patents
The anti-loose mechanical retention mechanism of self-tightening type Download PDFInfo
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- CN105257666B CN105257666B CN201510629106.2A CN201510629106A CN105257666B CN 105257666 B CN105257666 B CN 105257666B CN 201510629106 A CN201510629106 A CN 201510629106A CN 105257666 B CN105257666 B CN 105257666B
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Abstract
The invention belongs to technical field of fastening, more particularly, to a kind of anti-loose mechanical retention mechanism of self-tightening type.It solves existing retention mechanism and the technical problem such as easily occurs releasing.Including the body of bolt, there are two thread segments being connected respectively with clamp nut and anti-loosing nut screw thread on the body of bolt, and the hand of spiral of two thread segments is opposite, the regulation ring being arranged with the body of bolt between clamp nut and anti-loosing nut, it is connected between clamp nut and regulation ring by one-directional rotation structure, circumferential positioning structure and axial positioning structure are provided between regulation ring and anti-loosing nut, shock-damping structure is additionally provided between regulation ring and anti-loosing nut.Advantage is：Reasonable in design, simple in construction, bonding strength is high, and stability is good, can prevent occurring releasing phenomenon during connection, have auto-lock function.
Description
Technical field
The invention belongs to technical field of fastening, more particularly, to a kind of anti-loose mechanical retention mechanism of self-tightening type.
Background technology
Screw pair retention mechanism is the retention mechanism that a kind of common screw thread coordinates, mutual the most common are bolts and nuts
The fastening connection piece of cooperation, the threaded connection to plant 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 construction, 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 when connecting and is mutually disengaged phenomenon, serious easy generation security incident.
In order to solve the problems, such as that prior art is present, 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 provided 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 provided 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 still to there is 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 it is a kind of reasonable in design, simple in construction, there is anti-loose function
The anti-loose mechanical retention mechanism of self-tightening type.
To reach above-mentioned purpose, present invention employs following technical proposal：The anti-loose mechanical retention mechanism of this self-tightening type, bag
The body of bolt is included, there are two thread segments being connected respectively with clamp nut and anti-loosing nut screw thread on the described body of bolt, and
The hand of spiral of two thread segments is opposite, it is characterised in that is arranged with the described body of bolt positioned at clamp nut and anti-loose
Regulation ring between nut, it is connected between described clamp nut and regulation ring by one-directional rotation structure, when clamp nut has
Have that remote anti-loosing nut side circumferentially rotates motion or clamp nut described in during movement tendency can be circumferential relative to regulation ring
Rotation and the clamp nut described in when clamp nut has and circumferentially rotates motion or movement tendency towards anti-loosing nut side
It is circumferentially positioned by one-directional rotation structure and regulation ring, between described regulation ring and anti-loosing nut be provided with can make regulation ring with
The circumferentially positioned circumferential positioning structure of anti-loosing nut and the axially position that regulation ring and anti-loosing nut axially position can be made
Structure, shock-damping structure is additionally provided between described regulation ring and anti-loosing nut.In use, the effect of axial positioning structure is to work as
When clamp nut moves down, due to the presence of axial positioning structure, due to regulation ring and anti-loosing nut axially position, so
Regulation ring will not be moved down with gravity, and motion or motion are circumferentially rotated when clamp nut is directed away from anti-loosing nut side
Clamp nut described in during trend can circumferentially rotate relative to regulation ring, i.e., clamp nut compresses towards during the motion of locking direction
Nut can be circumferentially rotated relative to regulation ring so that clamp nut is separated from each other with regulation ring, is existed when being compacted object, this
Athletic meeting is prevented from certain section, and anti-loosing nut is because of one-directional rotation structure without departing from the body of bolt；When clamp nut has
Have circumferentially rotate motion towards anti-loosing nut side or the clamp nut described in during movement tendency by one-directional rotation structure with
Regulation ring is circumferentially positioned, simultaneously as regulation ring and anti-loosing nut are positioned at by circumferential positioning structure and axial 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 passed to by the adjusted ring of one-directional rotation structure it is anti-loose
Nut, drive anti-loosing nut to circumferentially rotate motion or movement tendency to clamp nut side, so allowed 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
It is mutually located and because the presence of one-directional rotation structure is so that anti-loosing nut can not depart from the body of bolt.
In the above-mentioned anti-loose mechanical retention mechanism of self-tightening type, described one-directional rotation structure includes being arranged on compression spiral shell
Female one end and the compression helicoid being distributed in the shape of a spiral and the cooperation helicoid for being arranged on regulation ring one end and being distributed in the shape of a spiral,
Described compression helicoid forms one-directional rotation helicoid pair with coordinating helicoid to match.When clamp nut has towards locking
When de- nut side circumferentially rotates motion or movement tendency, because compression helicoid here is with coordinating helicoid to abut energy
So that clamp nut is circumferentially positioned with regulation ring, it is clear that the structure of one-directional rotation structure is varied, and those skilled in the art are also
Other structures can be selected.
In the above-mentioned anti-loose mechanical retention mechanism of self-tightening type, shape between described compression helicoid one end and the body of bolt
Into spiral section is compressed, formed between described cooperation helicoid one end and the body of bolt and coordinate spiral section, and work as clamp nut
With regulation ring when circumferentially positioned described in compression spiral section with coordinate spiral section can abut；Described compression helicoid
It is involute helicoid with coordinating helicoid.I.e. by compressing spiral section with coordinating spiral section to abut realization pressure
Tight nut is mutually located with regulation ring；The irreversibility technical principle moved by helicoid, so as to realize the work(of one-way movement
Energy.
In the above-mentioned anti-loose mechanical retention mechanism of self-tightening type, the clamp nut end stated is provided with the first involute spiral
Body, and the first described involute conveyor screw end face forms above-mentioned compression helicoid, compresses between helicoid and clamp nut
Positioning step is formed, the circumferential inner side in described regulation ring end forms the annular groove for the insertion of the first involute conveyor screw, and
There is the second involute conveyor screw to match with the first involute conveyor screw in described annular groove, and described second gradually
Conveyor screw end face of bursting at the seams forms above-mentioned cooperation helicoid, and annular groove forms the cooperation step to match with positioning step.This
In the first involute conveyor screw insert in annular groove and cooperated with the second involute conveyor screw, so improve connection
Stability.
In the above-mentioned anti-loose mechanical retention mechanism of self-tightening type, the described spiral for compressing helicoid and coordinating helicoid
It is identical with the thread segment hand of thread spiral that clamp nut is connected on direction and the body of bolt.This ensure that one-directional rotation direction is expired
The anti-loose demand of this retention mechanism of foot.
In the above-mentioned anti-loose mechanical retention mechanism of self-tightening type, described axial positioning structure includes being arranged on regulation ring
The hole of end back-up ring groove, there are a ring flange and hole back-up ring among described anti-loosing nut, described is anti-loose
The cylindrical regulation ring endoporus with providing holes back-up ring groove of nut flange matches, and hole is arranged on hole back-up ring ditch with back-up ring
Groove and by regulation ring and anti-loosing nut axially position.Hole is arranged on hole back-up ring groove with back-up ring and keeps off ring flange inner
Face, make anti-loosing nut will not be from being axially disengaging regulation ring.
In the above-mentioned anti-loose mechanical retention mechanism of self-tightening type, described circumferential positioning structure is arranged on tune including some
Ring outer circumferential and the positioning hole axially arranged along regulation ring are saved, described anti-loosing nut is provided with least one along locking
The axially arranged mating holes of de- nut, described mating holes is corresponding with any one in positioning hole, and described positioning hole leads to
Locating dowel is crossed with mating holes to be connected.It is corresponding with one of positioning hole by mating holes and be connected by locating dowel, it is so real
Existing anti-loosing nut and regulation ring are circumferentially positioned.
In the above-mentioned anti-loose mechanical retention mechanism of self-tightening type, described mating holes is that middle part has radial positioning groove
Stepped hole, and described positioning hole is circumferentially uniformly distributed setting；Described locating dowel includes being located in mating holes and positioning hole
In rigid cylinder and be arranged on rigid post end and with the elastic cylinder of the positioning convex ring in the detent in vitro.
In the above-mentioned anti-loose mechanical retention mechanism of self-tightening type, described shock-damping structure includes being arranged on regulation ring end
The annular groove of circumferential inner side, the circumferential inner side in described anti-loosing nut end have the annular bead corresponding with annular groove and institute
The annular bead stated is inserted in annular groove, and annular gap, and described annular gap are formed between annular bead and annular groove
It is interior to bear against the elastic component in annular bead and annular groove provided with end.Preferably, elastic component here can use dish
Spring, it can so play a part of reinforcement and damping.
In the above-mentioned anti-loose mechanical retention mechanism of self-tightening type, the described body of bolt is by the first different shank of bolt of diameter
Coaxially formed with the second shank of bolt, and two thread segments are sequentially formed on the first shank of bolt and the second shank of bolt respectively, it is described
Clamp nut be sheathed on the first shank of bolt, described anti-loosing nut is sheathed on the second shank of bolt, and described first
The diameter of shank of bolt is more than the diameter of the second shank of bolt；Described clamp nut screw thread screw thread corresponding with the body of bolt
Section screw thread forms collet threaded pair, and anti-loosing nut screw thread thread segment screw thread corresponding with the body of bolt forms anti-loose screw thread pair.
It so can guarantee that clamp nut and anti-loosing nut can smoothly be set in the first shank of bolt and the second shank of bolt respectively.
Compared with prior art, it is the advantages of this self-tightening type anti-loose mechanical retention mechanism：It is reasonable in design, structure letter
Single, bonding strength is high, and stability is good, can prevent occurring releasing phenomenon during connection, have auto-lock function.
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 anti-loosing nut of embodiment provided by the invention.
Fig. 9 is the overlooking the structure diagram of the anti-loosing nut of embodiment provided by the invention.
Figure 10 is the structural representation of the body of bolt of embodiment provided by the invention.
In figure, the body of bolt 1, the first shank of bolt 11, the second shank of bolt 12, clamp nut 2, anti-loosing nut 3, regulation ring 4,
One-directional rotation structure 5, helicoid 51, positioning step 52 are compressed, coordinates helicoid 53, coordinate step 54, the first involute spiral
Body 55, annular groove 56, the second involute conveyor screw 57, compression spiral section 58, cooperation spiral section 59, circumferential positioning structure
6th, positioning hole 61, mating holes 62, locating dowel 63, axial positioning structure 7, annular groove 71, annular bead 72, annular gap 73, bullet
Property part 74, shock-damping structure 75, ring flange 76, hole back-up ring 77, hole back-up ring groove 78, collet threaded pair 8, anti-loose screw thread pair
9th, 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 Figure 1-2, the anti-loose mechanical retention mechanism of this self-tightening type, including the body of bolt 1, there are two on the body of bolt 1
The thread segment being connected respectively with clamp nut 2 and the screw thread of anti-loosing nut 3, and the hand of spiral of two thread segments is on the contrary, bolt
The regulation ring 4 being arranged with body 1 between clamp nut 2 and anti-loosing nut 3, passes through between clamp nut 2 and regulation ring 4
One-directional rotation structure 5 is connected, when clamp nut 2, which has, circumferentially rotates motion or movement tendency away from the side of anti-loosing nut 3
Clamp nut 2 can be circumferentially rotated relative to regulation ring 4 and circumferentially rotated when clamp nut 2 has towards the side of anti-loosing nut 3
Clamp nut 2 is circumferentially positioned by one-directional rotation structure 5 and regulation ring 4 when motion or movement tendency, and described regulation ring 4 is with preventing
Regulation ring 4 and the circumferentially positioned circumferential positioning structure 6 of anti-loosing nut 3 can be made and can make regulation by releasing to be provided between nut 3
Ring 4 and the axial positioning structure 7 of the axially position of anti-loosing nut 3, are additionally provided between described regulation ring 4 and anti-loosing nut 3
Shock-damping structure 75, in use, the effect of axial positioning structure 7 is when clamp nut 2 moves down, due to axial positioning structure
7 presence, regulation ring 4 and the axially position of anti-loosing nut 3, such regulation ring 4 will not move down with gravity, when compression spiral shell
Mother 2 is directed away from that the side of anti-loosing nut 3 circumferentially rotates motion or clamp nut 2 can be 4 weeks relative to regulation ring during movement tendency
To rotation, i.e., clamp nut 2 is towards during the motion of locking direction, and clamp nut 2 can circumferentially rotate relative to regulation ring 4 so that pressure
Tight 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-loose spiral shell
Mother 3 is because of one-directional rotation structure 5 without departing from the body of bolt 1；Circumferentially turn when clamp nut 2 has towards the side of anti-loosing nut 3
Clamp nut 2 is circumferentially positioned by one-directional rotation structure 5 and regulation ring 4 when dynamic motion or movement tendency, simultaneously because positioning knot
Regulation ring 4 and anti-loosing nut 3 are positioned together by structure, and the screw thread of clamp nut 2 and the screw thread of anti-loosing nut 3 are opposite direction spiral shells
Line, so that clamp nut 2 can not circumferentially rotate towards the side of anti-loosing nut 3, but the rotation potential energy of clamp nut 2 passes through
The adjusted ring 4 of one-directional rotation structure 5 has passed to anti-loosing nut 3, has driven anti-loosing nut 3 to the side of clamp nut 2
Motion or movement tendency are circumferentially rotated, clamp nut 2 is so allowed for and is in continuous self-tightening process all the time, then realize the machine
The auto-lock function of structure, simultaneously because anti-loosing nut 3 is circumferentially positioned with regulation ring 4 and presence due to one-directional rotation structure 5 makes
The body of bolt 1 can not be departed from by obtaining anti-loosing nut 3.
Specifically, the one-directional rotation structure 5 such as Fig. 1-9 here includes being arranged on the one end of clamp nut 2 and divided in the shape of a spiral
The compression helicoid 51 of cloth and the cooperation helicoid 53 for being arranged on the one end of regulation ring 4 and being distributed in the shape of a spiral, compress helicoid 51
One-directional rotation helicoid pair 10 is formed with coordinating helicoid 53 to match, when clamp nut 2 has towards the side of anti-loosing nut 3
When circumferentially rotating motion or movement tendency, because compression helicoid 51 here can be so that pressure with coordinating helicoid 53 to abut
Tight nut 2 and regulation ring 4 are circumferentially positioned, it is clear that the structure of one-directional rotation structure 5 is varied, and those skilled in the art may be used also
To select other structures.Here formed between one end of compression helicoid 51 and the body of bolt 1 and compress spiral section 54, coordinate spiral
Formed between the one end of face 53 and the body of bolt 1 and coordinate spiral section 56, and compressed when clamp nut 2 and circumferentially positioned regulation ring 4
Spiral section 54 coordinates spiral section 56 with coordinating spiral section 56 to abut by compressing spiral section 54 and being resisted against
Until it can not be rotated further above and according to the screw-threaded coupling direction of clamp nut 2, so as to realize that clamp nut 2 and regulation ring 4 are mutual
Positioning.Preferably, compression helicoid 51 here is involute helicoid with coordinating helicoid 53, i.e., is moved by helicoid
Irreversibility technical principle, so as to realize the function of one-way movement.
Preferably, the end of clamp nut 2 here is provided with the first involute conveyor screw 55, and the first involute conveyor screw 55
End face forms above-mentioned compression helicoid 51, compresses and positioning step 52, regulation ring 4 are formed between helicoid 51 and clamp nut 2
The circumferential inner side in end forms the annular groove 56 for the insertion of the first involute conveyor screw 55, and has and first in annular groove 56
The second involute conveyor screw 57 that involute conveyor screw 55 matches, and the end face of the second involute conveyor screw 57 forms above-mentioned match somebody with somebody
Helicoid 53 is closed, annular groove 56 forms the cooperation step 54 to match with positioning step 52, i.e., the first involute spiral shell here
Rotation body 55 is inserted in annular groove 56 and cooperated with the second involute conveyor screw 57, so improves the stability of connection,
In order to ensure that one-directional rotation direction meets the needs of this retention mechanism is anti-loose, compression helicoid 51 and cooperation helicoid here
It is identical with the thread segment hand of thread spiral that clamp nut 2 is connected in 53 hand of spiral and the body of bolt 1.
Further, as shown in figs. 1-7, axial positioning structure 7 here includes the hole gear for being arranged on the end of regulation ring 4
Groove 78 is enclosed, has a ring flange 76, the cylindrical and providing holes back-up ring groove of ring flange 76 among described anti-loosing nut 3
78 endoporus of regulation ring 4 matches, and hole back-up ring 77 is arranged on hole back-up ring groove 78 and keeps off ring flange 76 inside, makes to prevent
Releasing nut 3 will not be that is, axially fixed by regulation ring 4 and anti-loosing nut 3 with back-up ring 77 by hole from regulation ring 4 is axially disengaging
Position.
Preferably, shock-damping structure 75 here includes the annular groove 71 for being arranged on the circumferential inner side in the end of regulation ring 4, described
The end of anti-loosing nut 3 has the annular bead 72 corresponding with annular groove 71 and described annular bead 72 inserts in annular groove 71
It is interior, annular gap 73 is formed between annular bead 72 and annular groove 71, and end is provided with described annular gap 73 and is distinguished
The elastic component 74 being resisted against in annular bead 72 and annular groove 71.Preferably, elastic component 74 here can use disk spring, this
Sample can play a part of reinforcement and damping.
Further, as shown in Fig. 1-2 and Fig. 5-10, circumferential positioning structure 6 here is arranged on regulation including some
The outer circumferential of ring 4 and the positioning hole 61 axially arranged along regulation ring 4, anti-loosing nut 3 are provided with least one along anti-loose
The axially arranged mating holes 62 of nut 3, mating holes 62 is corresponding with any one in positioning hole 61, and positioning hole 61 passes through positioning
Post 63 is connected with mating holes 62, corresponding with one of positioning hole 61 by mating holes 62 and connected by locating dowel 63, this
Sample realizes that anti-loosing nut 3 and regulation ring 4 are circumferentially positioned, wherein preferably, mating holes 62 here has radial direction fixed for middle part
The stepped hole of position groove, and described positioning hole 61 is circumferentially uniformly distributed setting；Described locating dowel 63 includes being located in cooperation
Rigid cylinder in hole 62 and positioning hole 61 is held and with the positioning in the detent in vitro with rigid post is arranged on
The elastic cylinder of bulge loop.In order to ensure that anti-loosing nut 3 and clamp nut 2 can be smoothly set on the body of bolt 1 respectively, here
The body of bolt 1 is coaxially made up of the first different shank of bolt 11 of diameter with the second shank of bolt 12, and two thread segments distinguish shape successively
Into on the first shank of bolt 11 and the second shank of bolt 12, clamp nut 2 is sheathed on the first shank of bolt 11,3 sets of anti-loosing nut
On the second shank of bolt 12, and the diameter of the first shank of bolt 11 is more than the diameter of the second shank of bolt 12.Compress spiral shell
The respective threaded section screw thread of female 2 screw threads and the body of bolt 1 forms collet threaded pair 8, the phase of the screw thread of anti-loosing nut 3 and the body of bolt 1
Thread segment screw thread is answered to form anti-loose screw thread pair 9.
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 be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although the body of bolt 1, the first shank of bolt 11, the second shank of bolt 12, clamp nut 2, locking has more been used herein
De- nut 3, regulation ring 4, one-directional rotation structure 5, compression helicoid 51, positioning step 52, cooperation helicoid 53, cooperation step
54th, the first involute conveyor screw 55, annular groove 56, the second involute conveyor screw 57, compression spiral section 58, cooperation spiral break
Face 59, circumferential positioning structure 6, positioning hole 61, mating holes 62, locating dowel 63, axial positioning structure 7, annular groove 71, annular bead
72nd, annular gap 73, elastic component 74, shock-damping structure 75, ring flange 76, hole back-up ring 77, hole back-up ring groove 78, collet threaded
The terms such as pair 8, anti-loose screw thread pair 9, one-directional rotation helicoid pair 10, but it is not precluded from the possibility using other terms.Make
It is used for the purpose of more easily describing and explaining the essence of the present invention with these terms；It is construed as what any one was added
Limitation is all disagreed with spirit of the present invention.
Claims (10)
1. a kind of anti-loose mechanical retention mechanism of self-tightening type, including the body of bolt (1), there are two points on the described body of bolt (1)
The thread segment not being connected with clamp nut (2) and anti-loosing nut (3) screw thread, and two thread segments hand of spiral on the contrary, its
It is characterised by, the regulation ring being arranged with the described body of bolt (1) between clamp nut (2) and anti-loosing nut (3)
(4), it is connected between described clamp nut (2) and regulation ring (4) by one-directional rotation structure (5), when clamp nut (2) has
Motion is circumferentially rotated away from anti-loosing nut (3) side or the clamp nut (2) described in during movement tendency can be relative to regulation ring
(4) circumferentially rotate and circumferentially rotate motion or movement tendency when institute when clamp nut (2) has towards anti-loosing nut (3) side
The clamp nut (2) stated is circumferentially positioned by one-directional rotation structure (5) and regulation ring (4), described regulation ring (4) with it is anti-loose
Regulation ring (4) circumferential positioning structure (6) circumferentially positioned with anti-loosing nut (3) can be made and can make by being provided between nut (3)
The axial positioning structure (7) of regulation ring (4) and anti-loosing nut (3) axially position, described regulation ring (4) and anti-loosing nut
(3) shock-damping structure (75) is additionally provided between.
2. the anti-loose mechanical retention mechanism of self-tightening type according to claim 1, it is characterised in that described one-directional rotation knot
Structure (5) includes the compression helicoid (51) for being arranged on clamp nut (2) one end and being distributed in the shape of a spiral and is arranged on regulation ring (4)
One end and the cooperation helicoid (53) being distributed in the shape of a spiral, described compression helicoid (51) is with coordinating helicoid (53) to match
It is secondary (10) to form one-directional rotation helicoid.
3. the anti-loose mechanical retention mechanism of self-tightening type according to claim 2, it is characterised in that described compression helicoid
(51) formed between one end and the body of bolt (1) and compress spiral section (58), described cooperation helicoid (53) one end and the body of bolt
(1) formed between and coordinate spiral section (59), and the compression spiral shell described in when clamp nut (2) and regulation ring (4) are circumferentially positioned
Rotation section (58) is with coordinating spiral section (59) to abut；Described compression helicoid (51) is with coordinating helicoid (53) equal
For involute helicoid.
4. the anti-loose mechanical retention mechanism of self-tightening type according to claim 3, it is characterised in that described clamp nut
(2) end is provided with the first involute conveyor screw (55), and first described involute conveyor screw (55) end face forms above-mentioned pressure
Tight helicoid (51), compresses and positioning step (52), described regulation ring (4) is formed between helicoid (51) and clamp nut (2)
The circumferential inner side in end forms the annular groove (56) for the insertion of the first involute conveyor screw (55), and described annular groove (56)
It is interior with the second involute conveyor screw (57) to match with the first involute conveyor screw (55), and the second described involute spiral shell
Rotation body (57) end face forms above-mentioned cooperation helicoid (53), and annular groove (56) is formed matches somebody with somebody with what positioning step (52) matched
Close step (54).
5. the anti-loose mechanical retention mechanism of self-tightening type according to claim 3, it is characterised in that described compression helicoid
(51) the thread segment thread helix and on the hand of spiral of cooperation helicoid (53) and the body of bolt (1) being connected with clamp nut (2)
Direction is identical.
6. according to the anti-loose mechanical retention mechanism of self-tightening type described in any one in claim 1-5, it is characterised in that institute
The axial positioning structure (7) stated includes hole back-up ring groove (78), the described anti-loosing nut for being arranged on regulation ring (4) end
(3) have a ring flange (76) and a hole back-up ring (77) among, described anti-loosing nut (3) ring flange (76) it is cylindrical with
Regulation ring (4) endoporus of providing holes back-up ring groove (78) matches, and hole is arranged on hole back-up ring groove (78) with back-up ring (77)
And by regulation ring (4) and anti-loosing nut (3) axially position.
7. according to the anti-loose mechanical retention mechanism of self-tightening type described in any one in claim 1-5, it is characterised in that institute
The circumferential positioning structure (6) stated is arranged on regulation ring (4) outer circumferential and determined along regulation ring (4) is axially arranged including some
Position hole (61), described anti-loosing nut (3) are provided with least one mating holes axially arranged along anti-loosing nut (3)
(62), described mating holes (62) positioning hole (61) corresponding and described with any one in positioning hole (61) passes through positioning
Post (63) is connected with mating holes (62).
8. the anti-loose mechanical retention mechanism of self-tightening type according to claim 7, it is characterised in that described mating holes (62)
There is the stepped hole of radial positioning groove for middle part, and described positioning hole (61) is circumferentially uniformly distributed setting；Described positioning
Post (63) includes the rigid cylinder that is located in mating holes (62) and positioning hole (61) and is arranged on rigid post and holds and have in vitro
The elastic cylinder of positioning convex ring in the detent.
9. the anti-loose mechanical retention mechanism of self-tightening type according to claim 7, it is characterised in that described shock-damping structure
(75) annular groove (71) for being arranged on the circumferential inner side in regulation ring (4) end is included, described anti-loosing nut (3) end week is inwardly
There is the annular bead (72) and described annular bead (72) corresponding with annular groove (71) to insert in annular groove (71) for side,
Annular gap (73) are formed between annular bead (72) and annular groove (71), and end part is provided with described annular gap (73)
The elastic component (74) not being resisted against in annular bead (72) and annular groove (71).
10. the anti-loose mechanical retention mechanism of self-tightening type according to claim 1, it is characterised in that the described body of bolt (1)
By different the first shank of bolt (11) of diameter with the second shank of bolt (12) is coaxial forms, and two thread segments are sequentially formed in respectively
On first shank of bolt (11) and the second shank of bolt (12), described clamp nut (2) is sheathed on the first shank of bolt (11), described
Anti-loosing nut (3) be sheathed on the second shank of bolt (12), and the diameter of described the first shank of bolt (11) is more than the
The diameter of two shanks of bolt (12)；Described clamp nut (2) screw thread thread segment screw thread corresponding with the body of bolt (1) forms pressure
Tight screw thread pair (8), anti-loosing nut (3) screw thread thread segment screw thread corresponding with the body of bolt (1) form anti-loose screw thread pair (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510629106.2A CN105257666B (en) | 2015-09-29 | 2015-09-29 | The anti-loose mechanical retention mechanism of self-tightening type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510629106.2A CN105257666B (en) | 2015-09-29 | 2015-09-29 | The anti-loose mechanical retention mechanism of self-tightening type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105257666A CN105257666A (en) | 2016-01-20 |
| CN105257666B true CN105257666B (en) | 2018-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510629106.2A Active CN105257666B (en) | 2015-09-29 | 2015-09-29 | The anti-loose mechanical retention mechanism of self-tightening type |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108716249A (en) * | 2018-09-04 | 2018-10-30 | 苏州中正建设工程有限公司 | A kind of pre-buried connection component of prefabricated outer wall panel bearing diagonal |
| CN110131284B (en) * | 2019-06-10 | 2023-12-05 | 浙江盛世瑞金紧固件股份有限公司 | High-strength anti-loose anti-theft bolt |
| CN110966297B (en) * | 2019-12-24 | 2024-02-27 | 广东力源液压机械有限公司 | Pile driving hammer head loosening prevention method and device |
| CN112032180B (en) * | 2020-08-28 | 2021-09-17 | 北京航空航天大学 | Double-nut anti-loosening device suitable for shaft parts |
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| US1571037A (en) * | 1925-09-30 | 1926-01-26 | Arthur F Bartlett | Nut lock |
| CN86204074U (en) * | 1986-09-08 | 1987-07-22 | 宁波市江北区工业局 | Locknut |
| CN1067297A (en) * | 1991-02-15 | 1992-12-23 | 保罗·爱德华·尤因 | Self-locking fastener |
| CN2188140Y (en) * | 1993-07-01 | 1995-01-25 | 石忠杰 | Check bolt |
| KR20140055028A (en) * | 2012-10-30 | 2014-05-09 | 이춘우 | Locking bolt and nut with loose stopper |
| CN205117957U (en) * | 2015-09-29 | 2016-03-30 | 玉环胜友工具有限公司 | From locking mechanical fastening mechanism that takes off of compact form |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1557361A (en) * | 1925-07-23 | 1925-10-13 | Grimm Jesse | Nut lock |
| US1571037A (en) * | 1925-09-30 | 1926-01-26 | Arthur F Bartlett | Nut lock |
| CN86204074U (en) * | 1986-09-08 | 1987-07-22 | 宁波市江北区工业局 | Locknut |
| CN1067297A (en) * | 1991-02-15 | 1992-12-23 | 保罗·爱德华·尤因 | Self-locking fastener |
| CN2188140Y (en) * | 1993-07-01 | 1995-01-25 | 石忠杰 | Check bolt |
| KR20140055028A (en) * | 2012-10-30 | 2014-05-09 | 이춘우 | Locking bolt and nut with loose stopper |
| CN205117957U (en) * | 2015-09-29 | 2016-03-30 | 玉环胜友工具有限公司 | From locking mechanical fastening mechanism that takes off of compact form |
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| CN105257666A (en) | 2016-01-20 |
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