A kind of self-locking fastener and its assembly and installation method
Technical field
The invention belongs to technical field of fastening, it is related to a kind of self-locking fastener and its assembly and installation method.
Background technique
It is threadedly coupled and is used to play the role of fastening, be a kind of common connection type, structure is simple, is convenient to mount and dismount, extensively
Applied in various mechanical equipments, but mechanical shock will lead to connection and loosen, it is therefore desirable to what one kind can effectively prevent loosening
Fastener.
It is existing application No. is 201410109674.5, the Chinese invention patent of entitled " Anti-loose fastener component ",
The nut that workpiece is limited including bolt and with bolt cooperation, by being equipped with one between two nuts under
The positioning cap button that nut is limited, and the galianconism of positioning cap button clasps the edge placement of corresponding workpiece, so that opposite piece limits
Position lower nut, and set using top nut stationary positioned cap button bit, to prevent from loosening.But it has the following problems:
1, shape and side since the galianconism for needing positioning cap button clasps the edge placement of corresponding workpiece, to workpiece
Edge position, which has, to be required, it is necessary to have the edge for the workpiece being adapted to galianconism, therefore the fastener can not be suitable for all workpiece.
2, locking purpose is exactly to prevent nut from rotating relative to bolt, but the galianconism in the patent carries out workpiece and nut
Limit, does not make nut circumferentially fixed with respect to bolt, and two nuts are screwed on the screw thread of same specification, therefore workpiece
After vibration, two bolts still can opposing nut rotation, be unable to reach locking effect at all.
3, program number of parts is more, erroneous for installation, therefore construction is more troublesome.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, provides a kind of can be applicable in and need to be connected
Part, and anti-loosing effect is more preferable, while assembling and disassembling also very easily self-locking fastener and its assembly and installation method.
Object of the invention can be realized by the following technical scheme: a kind of self-locking fastener, including screw bolt and nut,
Bolt includes screw rod and the bolt head for being connected to screw rod bottom end, and screw rod bar wall has external screw thread, and nut inner wall has internal screw thread, described
Nut outer wall be regular polygon sleeve-like structure, it is characterised in that: nut outer wall is equipped with close to bottom position and coaxially sets with nut
The circle shell-like alignment grooves set further include that activity engagement sleeves align set, the contraposition groove groove wall in the circle shell-like in alignment grooves
It is coaxially provided with a circle circular ring shape sliding slot, interior contraposition set inner wall is equipped with the sliding block being slidably disposed on sliding slot, and interior contraposition set bottom end is coaxial
It is fixed with circular ring shape plate jam plate, jam plate top surface is bonded with nut bottom end end face, and jam plate internal diameter is identical as screw rod bar diameter, jam plate
Inner circumferential is equipped with several locking plates, further includes that activity engagement sleeves align set outside the regular polygon shell-like of nut outer wall, in outer contraposition covers
Wall is the regular polygon sleeve-like structure being adapted to nut outer wall, and outer contraposition covers the inner wall close to bottom end and is coaxially fixed with circular ring shape limit
Position ring, the interior contraposition set outer wall are coaxially provided with round shell-like limiting slot, the stop collar activity cooperation close to apical position
It covers on limiting slot, stop collar inner wall is equipped with the interior teeth circumferentially distributed along stop collar, and cell wall of the limiting slot close to top is equipped with
Circumferentially distributed outer teeth are covered along interior contraposition, the interior contraposition set bottom end wall coaxial is fixed with circular ring shape baffle ring, further includes
Contraposition is put on set inside, and the reset spring that both ends offset with outer contraposition set bottom end and baffle ring respectively, the reset spring push away
Dynamic outer contraposition set, makes stop collar be moved to limiting slot top, and be against alignment grooves top, and interior teeth and the engagement of outer teeth, and
The jam plate is circumferentially fixed by outer contraposition set opposing nut, and the screw rod bar wall is equipped with bar shaped identical with locking plate quantity
The locked groove of notching construction, locked groove length direction is parallel with screw axis, and can cooperate the jam plate and be sleeved on the screw rod, and will
Several locking plates are sequentially embedded in several locked grooves, and push outer contraposition set towards nut bottom end, and stop collar is made to be moved to limiting slot bottom end,
And separate interior teeth and outer teeth, and jam plate is circumferentially flexibly connected with nut at this time, and can pass through rotating nuts, make nut and
Screw rod is spirally connected, and jam plate is driven to move axially along a screw.
Since this fastener is only cooperated by bolts and nuts, when fastening, treats the shape and margin location of connector
It sets to be not present and require, therefore the installation and fastening of needed connector can be applicable in;And the jam plate in this programme is covered by outer contraposition
Opposing nut is circumferentially fixed, and several locking plates on jam plate are caught in several locked grooves on screw rod, to make nut with respect to bolt week
To fixation, to realize the locking of locking type, therefore anti-loosing effect is more preferable;And the interior teeth of stop collar inner wall and limiting slot slot
The outer teeth of wall cooperate, therefore nut can guarantee that outer contraposition set resets with respect to jam plate any rotation, and make interior teeth with
Outer teeth engagement, so that interior contraposition set and outer contraposition be made to cover circumferentially opposed fixation;And entirety is both connected on nut, it is only necessary to will
Spanner pulls a mouthful clamping screw nut, and pushes outer contraposition set, i.e., separable internal tooth tooth and outer teeth towards nut bottom end, later can be just
Nut is assembled and disassembled in normal rotation, therefore it is very convenient efficient to construct.
In a kind of above-mentioned self-locking fastener, the outer contraposition set top outer wall is fixed with vertical with outer contraposition set
Baffle, and baffle can be pushed, and the mobile outer contraposition set of opposing nut.
Therefore it can be convenient and baffle pushed to drive outer contraposition set movement.
In a kind of above-mentioned self-locking fastener, the internal tooth crest end and outer teeth bottom end all have V-shaped
Guide part, and can be cooperated by guide part, engage interior teeth and outer teeth.
Therefore convenient outer contraposition set guiding resets.
In a kind of above-mentioned self-locking fastener, the interior contraposition puts on several connections for being equipped with and being disposed radially
Hole is bolted with coupling bar in the connecting hole, and coupling bar inner end forms and slides embedding sliding block on the chute.
Therefore assembly fastener is very convenient.
In a kind of above-mentioned self-locking fastener, the locking plate cross section be trapezium structure, and corresponding bottom edge with
The connection of jam plate inner circumferential, corresponding two sides bevel edge are arranged radially along jam plate.
Therefore structure is more stable.
In a kind of above-mentioned self-locking fastener, the locking plate end is towards nut tip flexion.
Therefore convenient that jam plate is installed on screw rod.
In a kind of above-mentioned self-locking fastener, several elastic slices, and elastic slice are cut and are bent to form on the jam plate
It is acute angle with jam plate angle.
Setting elastic slice makes jam plate also have the function of elastomeric pad.
In a kind of above-mentioned self-locking fastener, the outer contraposition set and baffle are structure as a whole, interior contraposition set and
Jam plate is structure as a whole, and the locking plate is that jam plate cuts and is bent to form.
Therefore structure is more stable.
A kind of assembly method for self-locking fastener, it is characterised in that: the following steps are included:
Outer contraposition is covered from nut bottom end and is covered on nut outer wall by step 1, and reseting spring sleeve is aligned inside and is put on, and
By interior contraposition set activity engagement sleeves in alignment grooves;
Coupling bar and connecting hole are spirally connected by step 2, and coupling bar inner end, which is formed, slides embedding sliding block on the chute.
It, can convenient for assembly fastener by the above method.
A kind of installation method for self-locking fastener, it is characterised in that: the following steps are included:
Jam plate cooperation is sleeved on the screw rod across several to connector by step 1 by screw rod, and several locking plates are successively embedding
Enter in several locked grooves, finger pinches nut, and pushes outer contraposition set towards nut bottom end, separates interior teeth and outer teeth, passes through
Rotating nuts make nut be spirally connected with screw rod, and jam plate is driven to be moved to jam plate axially along a screw close to connector;
Step 2 pushes outer contraposition set by a mouthful clamping screw nut of pulling for spanner, while towards nut bottom end, continues rotating nuts,
When nut and when connector compresses jam plate, mouth and nut are pulled in separation, and reset spring pushes outer contraposition set, is moved to stop collar
Limiting slot top, and it is against alignment grooves top, and interior teeth and the engagement of outer teeth, and jam plate covers opposing nut week by outer contraposition
To fixation.
Through the above steps, it can facilitate and install or remove this fastener.
Compared with prior art, the present invention has the advantage that
1, since this fastener is only cooperated by bolts and nuts, when fastening, treats the shape and edge of connector
There is no requirements for position, therefore can be applicable in the installation and fastening of needed connector;
2 and this programme in jam plate by outer contraposition set opposing nut it is circumferentially fixed, several locking plates on jam plate are caught in spiral shell
In several locked grooves on bar, to keep nut circumferentially fixed with respect to bolt, to realize the locking of locking type, therefore locking effect
Fruit is more preferable;
3 and stop collar inner wall interior teeth and limit groove groove wall outer teeth cooperate, therefore nut with respect to jam plate rotation times
Meaning angle can guarantee outer contraposition set reset, and engage interior teeth and outer teeth, to keep interior contraposition set and outer contraposition set all
To relatively fixed;
It 4 and whole is both connected on nut, it is only necessary to by a mouthful clamping screw nut of pulling for spanner, and push towards nut bottom end outer
Contraposition set, i.e., separable internal tooth tooth and outer teeth, can normally rotate assembly and disassembly nut later, therefore very convenient height of constructing
Effect.
Detailed description of the invention
Fig. 1 is this fastener connection status cross-sectional view.
Fig. 2 and Fig. 3 is the partial enlarged view of Fig. 1 respectively.
Fig. 4 is another status diagram of Fig. 3.
Fig. 5 is contraposition set and the nut top view after outer contraposition set in installation.
Fig. 6 is contraposition set and the nut bottom view after outer contraposition set in disassembly.
Fig. 7 is interior contraposition set top view.
Fig. 8 is the partial enlarged view of Fig. 7.
Fig. 9 is outer contraposition set bottom view.
Figure 10 is the partial enlarged view of Fig. 9.
Figure 11 is the partial front elevation view of nut and interior contraposition set cooperation.
In figure,
1, bolt;11, bolt head;12, screw rod;13, locked groove;
2, nut;21, alignment grooves;22, sliding slot;
3, interior contraposition set;31, sliding block;32, limiting slot;33, outer teeth;34, baffle ring;
4, jam plate;41, locking plate;42, elastic slice;
5, reset spring;
6, outer contraposition set;61, stop collar;62, interior teeth;63, baffle;
7, to connector.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in figs. 1-11, a kind of self-locking fastener of the present invention, including bolt 1 and nut 2, bolt 1 include screw rod 12
With the bolt head 11 for being connected to 12 bottom end of screw rod, 12 bar wall of screw rod has external screw thread, and 2 inner wall of nut has internal screw thread, 2 outer wall of nut
For regular polygon sleeve-like structure, 2 outer wall of nut is equipped with the circle shell-like alignment grooves 21 being coaxially disposed with nut 2 close to bottom position,
It further include that activity engagement sleeves align set 3 in the circle shell-like in alignment grooves 21,21 cell wall of alignment grooves is coaxially provided with a circle circular ring shape
Sliding slot 22,3 inner walls of interior contraposition set are equipped with the sliding block 31 being slidably disposed on sliding slot 22, and interior contraposition covers 3 bottom ends and is coaxially fixed with annulus
Shape plate jam plate 4,4 top surface of jam plate are bonded with 2 bottom end end face of nut, and 4 internal diameter of jam plate is identical as 12 bar diameter of screw rod, in jam plate 4
Week is equipped with several locking plates 41, further includes that activity engagement sleeves align set 6, outer contraposition set 6 outside the regular polygon shell-like of 2 outer wall of nut
Inner wall is the regular polygon sleeve-like structure being adapted to 2 outer wall of nut, and inner wall of the outer contraposition set 6 close to bottom end is coaxially fixed with annulus
Shape stop collar 61, interior contraposition cover 3 outer walls and are coaxially provided with round shell-like limiting slot 32,61 activity engagement sleeves of stop collar close to apical position
On limiting slot 32,61 inner wall of stop collar is equipped with the interior teeth 62 circumferentially distributed along stop collar 61, and limiting slot 32 is close to top
Cell wall, which is equipped with, covers 3 circumferentially distributed outer teeth 33 along interior contraposition, and interior contraposition covers 3 bottom end wall coaxials and is fixed with circular ring shape baffle ring
34, it further include set inside on contraposition set 3, and both ends are respectively with outer contraposition 6 bottom ends of set and the reset spring 5 that offsets of baffle ring 34, it is multiple
Position spring 5 pushes outer contraposition set 6, so that stop collar 61 is moved to 32 top of limiting slot, and be against 21 top of alignment grooves, and interior teeth
62 and outer teeth 33 engage, and jam plate 4 by outer contraposition cover 6 opposing nuts 2 it is circumferentially fixed, 12 bar wall of screw rod equipped with and locking plate 41
The locked groove 13 of the identical bar shaped notching construction of quantity, 13 length direction of locked groove is parallel with 12 axis of screw rod, and can cooperate jam plate 4
It covers on screw rod 12, and several locking plates 41 is sequentially embedded in several locked grooves 13, and push outer contraposition set 6 towards 2 bottom end of nut, make
Stop collar 61 is moved to 32 bottom end of limiting slot, and separates interior teeth 62 and outer teeth 33, and jam plate 4 and nut 2 are circumferential at this time
It is flexibly connected, and nut 2 can be made to be spirally connected with screw rod 12 by rotating nuts 2, and jam plate 4 is driven to move axially along screw rod 12.
Further, outer contraposition, which covers 6 top outer walls and is fixed with, covers 6 vertical baffles 63 with outer contraposition, and can push baffle
63, and the mobile outer contraposition set 6 of opposing nut 2.Interior 62 top of teeth and 33 bottom end of outer teeth all have the guide part of V-shaped, and
It can be cooperated by guide part, engage interior teeth 62 and outer teeth 33.Interior contraposition set 3 is equipped with several connections being disposed radially
Hole is bolted with coupling bar in connecting hole, and coupling bar inner end forms sliding block 31 of the sliding on sliding slot 22.41 cross section of locking plate
For trapezium structure, and corresponding bottom edge is connect with 4 inner circumferential of jam plate, and corresponding two sides bevel edge is arranged radially along jam plate 4.41 end of locking plate
Portion is towards 2 tip flexion of nut.Several elastic slices 42 are cut and are bent to form on jam plate 4, and elastic slice 42 and 4 angle of jam plate are acute angle.
Outer contraposition set 6 and baffle 63 are structure as a whole, and interior contraposition set 3 and jam plate 4 are structure as a whole, and locking plate 41 is the cutting of jam plate 4 and curved
Folding is formed.
A kind of assembly method for self-locking fastener, comprising the following steps:
Step 1 covers outer contraposition set 6 on 2 outer wall of nut from 2 bottom end of nut, aligns set 3 inside for 5 sets of reset spring
On, and interior contraposition is covered into 3 activity engagement sleeves in alignment grooves 21;
Coupling bar and connecting hole are spirally connected by step 2, and coupling bar inner end forms sliding block 31 of the sliding on sliding slot 22.
A kind of installation method for self-locking fastener, comprising the following steps:
Step 1, screw rod 12 is passed through it is several to connector 7, by 4 engagement sleeves of jam plate on screw rod 12, and by several locking plates
41 are sequentially embedded in several locked grooves 13, and finger pinches nut 2, and pushes outer contraposition set 6 towards 2 bottom end of nut, make interior 62 He of teeth
Outer teeth 33 separate, and by rotating nuts 2, nut 2 are made to be spirally connected with screw rod 12, and jam plate 4 is driven to move axially to along screw rod 12
Jam plate 4 is close to connector 7;
Spanner is pulled mouthful clamping screw nut 2, while pushing outer contraposition set 6 towards 2 bottom end of nut by step 2, continues to rotate spiral shell
Mother 2, when nut 2 and when connector 7 compresses jam plate 4, mouth and nut 2 are pulled in separation, and reset spring 5 pushes outer contraposition set 6, makes to limit
Position ring 61 is moved to 32 top of limiting slot, and is against 21 top of alignment grooves, and interior teeth 62 and outer teeth 33 engage, and jam plate 4
It is circumferentially fixed that 6 opposing nuts 2 are covered by outer contraposition.
Cooperate since this fastener only passes through bolt 1 and nut 2, when fastening treats shape and the side of connector 7
There is no requirements for edge position, therefore can be applicable in the installation and fastening of needed connector 7;And the jam plate 4 in this programme is outside
Contraposition 6 opposing nuts 2 of set are circumferentially fixed, and several locking plates 41 on jam plate 4 are caught in several locked grooves 13 on screw rod 12, to make
Nut 2 is circumferentially fixed with respect to bolt 1, to realize the locking of locking type, therefore anti-loosing effect is more preferable;And 61 inner wall of stop collar
Interior teeth 62 and the outer teeth 33 of 32 cell wall of limiting slot cooperate, therefore nut 2 can be protected with respect to 4 any rotation of jam plate
The outer contraposition set 6 of card resets, and engages interior teeth 62 and outer teeth 33, to keep interior contraposition set 3 and outer contraposition set 6 circumferentially opposed
It is fixed;And entirety is both connected on nut 2, it is only necessary to spanner be pulled mouthful clamping screw nut 2, and outer right towards the promotion of 2 bottom end of nut
Position set 6, i.e., separable internal tooth tooth 62 and outer teeth 33, can normally rotate assembly and disassembly nut 2, therefore it is very convenient to construct later
Efficiently.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although be used more herein bolt 1, bolt head 11, screw rod 12, locked groove 13, nut 2, alignment grooves 21, sliding slot 22,
It is interior contraposition set 3, sliding block 31, limiting slot 32, outer teeth 33, baffle ring 34, jam plate 4, locking plate 41, elastic slice 42, reset spring 5, outer right
Position set 6, stop collar 61, interior teeth 62, baffle 63, to terms such as connectors 7, but the possibility using other terms is not precluded
Property.The use of these items is only for be more convenient to describe and explain essence of the invention;It is construed as any one
Additional limitation is disagreed with spirit of that invention.