CN206495871U - Fastener - Google Patents
Fastener Download PDFInfo
- Publication number
- CN206495871U CN206495871U CN201720139642.9U CN201720139642U CN206495871U CN 206495871 U CN206495871 U CN 206495871U CN 201720139642 U CN201720139642 U CN 201720139642U CN 206495871 U CN206495871 U CN 206495871U
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- Prior art keywords
- annular element
- projection
- tightening piece
- fastener
- faying face
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- Clamps And Clips (AREA)
Abstract
A kind of fastener is provided, the fastener includes tightening piece (1) and annular element (2).The annular element includes the second main part (22), flange part (21) and multiple spaced first stop projections (23) of annular, described first stops that projection is axially extending from the flange part towards second faying face in the outside of second main part, wherein described first stops that the external diameter of projection is more than the external diameter of the tightening piece；Wherein described tightening piece and the first stop projection of the annular element are suitable to be combined with wrench device, realize the synchronous dismounting of the tightening piece and the annular element.Fastener of the present utility model plays a part of the suppression further pine of tightening piece by the combination of faying face and moved back.And for the damage of faying face when avoiding dismounting.And structure of the present utility model to screw back tightening piece to original position during dismounting, simplifies operation.
Description
Technical field
The utility model is related to a kind of combination by tightening piece and the faying face of annular element and suppresses tightening piece to realize
The fastener that further pine moves back, more particularly to one kind can realize tightening piece and annular element while tightening or dismantling without damaging it
Between faying face fastener and its special wrench device.
Background technology
Fastener is applied in all trades and professions of connection fastening demand, such as in vehicle, building machinery, agricultural machine
All it is widely used in tool, manufacture machinery etc..For in large-scale engineering machinery or engineering truck, due to working environment it is severe with
And the effect of heavy load so that fastener thereon by the vibration of all directions and impacting for load, this cause fastener compared with
Easily release, so as to cause the reduction of fastener function or even fail, cause very big potential safety hazard.
Fastener locking method conventional at present generally comprises the locking of non-removable locking scheme and increasing friction force
Scheme.Non-removable locking scheme is changed into detachable threaded connection not using welding, bonding or rushing the modes such as point riveting
Detachable threaded connection.In non-removable locking scheme, fastener can not be reused, and troublesome poeration, be usually used in some
It is required that anti-loosening property is high and is not required to the important events of dismounting.The locking scheme of increasing friction force is using increasing between screw thread or bolt
The frictional force of (screw) head and nut end face or the simultaneously method of both frictional force of increase reach locking purpose.Increase rubs
The locking scheme for wiping power is not limited by space, can be dismantled repeatedly, but reliability is poor, after work certain time, meeting
Because of the reasons such as vibration reduction anti-loosing effect.
Utility model content
The technical problem that the utility model is solved is to provide a kind of fastener, and it is matched somebody with somebody by tightening piece and annular element
Cooperation is used so that tightening piece is more loose to move back, and screw fastening clamp force is tighter, causes tightening piece not release, so as to play suppression tightening piece
The effect that further pine moves back.And no matter which kind of use state is tightening piece is under, is loosened in maximum within angular range, this is pulled
Arm device can be inserted in tightening piece and annular element in any angle, and tightening piece and annular element are screwed out simultaneously.And avoid
For the damage of faying face during dismounting.And structure of the present utility model tightening piece need not be screwed back into original during dismounting
Position, simplifies operation.
According to the embodiment of the utility model one side there is provided a kind of fastener, including：Tightening piece, be configured to
Screw rod is coordinated to combine to fasten by fastener, the tightening piece includes the first main part of regular prism shape, the tightening piece
The first faying face is provided with first end surfaces；And annular element, the annular element is coaxially disposed and coordinates with the tightening piece
Use, the annular element includes：The second combination is provided with second main part of annular, the end surface of second main part
Face, first faying face is combined with the second faying face so that the further of the tightening piece is hindered when tightening piece pine moves back
Pine moves back；Flange part, is projected radially outwardly from the end relative with second faying face of second main part；And it is multiple
Spaced first stops projection, and described first stops projection in the outside of second main part from the flange part direction
Second faying face is axially extending, wherein described first stops that the external diameter of projection is more than the external diameter of the tightening piece；Wherein institute
The the first stop projection for stating tightening piece and the annular element is suitable to be combined with wrench device, realizes the tightening piece and the ring
The synchronous dismounting of shape part.
Number of projection and the regular prism are stopped according to an exemplary embodiment of the present utility model, described first
Side number it is corresponding.
According to an exemplary embodiment of the present utility model, wherein, first faying face includes at least two the
One joint portion, second faying face includes corresponding at least two second joint portion, and first joint portion is included in circumference
The first oblique faying face and the second blocking surface that side is upwardly extended, second joint portion include first extended in a circumferential direction
Oblique faying face and the second blocking surface, wherein the first oblique faying face of first joint portion is configured to the with the second joint portion
One oblique faying face is engaged contact, and the second blocking surface of first joint portion is configured to stop with the second of the second joint portion
Face is engaged contact, to realize the combination of tightening piece and the annular element.
According to an exemplary embodiment of the present utility model, wherein, the position of the first stop projection is set
Into when the second blocking surface of first joint portion is contacted with the second blocking surface of the second joint portion, described first stops projection
Plane respectively in a circumferential direction relative to the incline for passing through regular prism in radial directions is symmetrical.
According to an exemplary embodiment of the present utility model, wherein, on the circumferencial direction of the annular element, formed
The central angle for stopping the recess between projection two adjacent described first is more than the described first central angle for stopping projection.
According to an exemplary embodiment of the present utility model, wherein, on the circumferencial direction of the annular element, formed
The central angle of recess between two adjacent the first stop projections is twice of the described first central angle for stopping projection.
According to an exemplary embodiment of the present utility model, wherein, it is described on the circumferencial direction of the annular element
First stops the central angle of projection for 20 °.
According to an exemplary embodiment of the present utility model, wherein, the tightening piece includes：
From first main part coaxially axially extending the first annular protuberance, the first faying face formation exists
On the surface of remote first main part of first protuberance.
According to an exemplary embodiment of the present utility model, wherein, first protuberance and second main body
The external diameter in portion is identical.
According to an exemplary embodiment of the present utility model, wherein, the first oblique faying face of first joint portion
The helicoid with identical lift angle is respectively formed to cooperate with the first oblique faying face of the second joint portion, the spiral shell of the helicoid
Revolve the spiralling of the helicoid that lift angle is more than on the cooperation screw flight lift angle, the second joint portion of the annular element
Direction and screwing for the cooperation screw rod are in opposite direction.
According to an exemplary embodiment of the present utility model, wherein, the second blocking surface of first joint portion and
Second blocking surface of the second joint portion is identical with the angle of horizontal plane, and is obtuse angle or right angle.
According to an exemplary embodiment of the present utility model, wherein, the annular element is contacted with by fastener
Side is formed with ratchet, and the ratchet is constructed such that annular element and is more than tightening piece and annular by the frictional force between fastener
Frictional force between part, make it that annular element is kept not relative to by fastener and screw rod when tightening piece is relative to screw bolt loosening
It is dynamic.
According to an exemplary embodiment of the present utility model, wherein, the ratchet is configured to the of annular element
It is arranged radially on the surface of two sides.
According to an exemplary embodiment of the present utility model, wherein, the tightening piece have four-prism shape or
Positive six prismsby shape.
According to an exemplary embodiment of the present utility model, wherein, the tightening piece is nut, the nut and institute
Cooperation screw flight is stated to coordinate.
According to an exemplary embodiment of the present utility model, wherein, the tightening piece includes：Second protuberance, institute
State the second protuberance from one end of first protuberance to extend, second protuberance is contained in the annular element.
According to an exemplary embodiment of the present utility model, wherein, second protuberance protrudes from described first
Portion extends with being radially outwardly sloping to be formed；
Second protuberance is engaged with the endoporus of the annular element so that the tightening piece is relative to the annular element
Rotate but can not depart from from the annular element.
According to an exemplary embodiment of the present utility model, wherein, the endoporus of the annular element includes the first hole, interior
Footpath is more than the second hole of the internal diameter in first hole and connects the inclined plane in first hole and second hole, wherein described
First hole position is in the first side of the close tightening piece of the annular element, and second hole position is in the remote institute of the annular element
State the second side of tightening piece；The inclined plane is configured to stop second protuberance.
According to an exemplary embodiment of the present utility model, wherein, second protuberance is from the annular element
The first side through the annular element reach second side after formed by Sheet Metal Forming Technology.
According to an exemplary embodiment of the present utility model, wherein, the nut is split part with the annular element.
According to an exemplary embodiment of the present utility model, wherein, the tightening piece is bolt head, the bolt head
With it is described cooperation screw rod integrally connected and together with rotate.
According to the embodiment of one side of the present utility model there is provided a kind of wrench device, in claim 1-21
Fastener described in any one, realizes the synchronous dismounting of the tightening piece and the annular element, wherein：The wrench device bag
Include：3rd main part of tubular；
Multiple spaced second stop projections, are arranged on the inside of the 3rd main part, and be configured to it is described
First stop projection of annular element is in contact cooperation；And
Joint portion, is arranged on the inside of the 3rd main part, and be configured to the regular prism shape phase with the tightening piece
The regular prism shape of cooperation；
Wherein described second stops that the internal diameter of projection is more than the external diameter of first main part so that in the wrench device
When being attached to the fastener, the second stop projection offsets press-fit to activate the ring with the corresponding first stop projection
Shape part.
According to an exemplary embodiment of the present utility model, wherein, fasten the fastener in the wrench device
During, when mutually being compressed with the corresponding side of the first stop projection in the side of the described second stop projection, the fastening
First faying face of part is tightly coupled to each other with the second faying face, is turned with the synchronization for realizing the tightening piece and the annular element
It is dynamic.
According to an exemplary embodiment of the present utility model, wherein, formed in two first adjacent stop projections
Between recess central angle be more than described second stop projection central angle.
According to an exemplary embodiment of the present utility model, wherein, formed in two first adjacent stop projections
Between recess central angle and it is described second stop projection central angle between difference be not more than the tightening piece relative to
The maximum allowable loosening angle of the annular element.
According to an exemplary embodiment of the present utility model, wherein described second stops number of projection and the first resistance
Number of projection is kept off identical, so that when the wrench device is attached to the fastener, the second stop projection is inserted into
Between corresponding two adjacent first stop projection.
According to an exemplary embodiment of the present utility model, wherein, second stops projection in the 3rd main part
Circumferencial direction on central angle stop that central angle of the projection on the circumferencial direction of the annular element is identical with first.
According to an exemplary embodiment of the present utility model, wherein, second stops projection in the 3rd main part
Circumferencial direction on central angle and first stop that central angle of the projection on the circumferencial direction of the annular element is 20 °.
According to an exemplary embodiment of the present utility model, wherein, it is described on the circumferencial direction of the 3rd main part
Second stops the plane court of central point of the position relative to the regular prism side for passing through the joint portion in radial directions of projection
The tightening direction of fastener deviates certain angle.
According to an exemplary embodiment of the present utility model, wherein, deviation the angle ranging from 10 °.
According to an exemplary embodiment of the present utility model, wrench device further comprises：Connecting portion, the connection
Portion is formed in the inner side of the 3rd main part, and is configured to be connected with external tool, to turn the wrench device.
According to an exemplary embodiment of the present utility model, wherein being formed in the connecting portion along the 3rd master
Body portion radially extends the through hole inserted for handle.
According to the fastener of the various embodiments described above of the present utility model, it is more than by lift angle and coordinates screw flight lift angle
Faying face combination, realize when tightening piece pine moves back suppress tightening piece further pine move back, reach anti-loosing effect；And pull
Any angle of the arm device within maximum allowable loosening angle could be incorporated into fastener, and tightening piece and annular element are twisted simultaneously
It is tight or screw out, and tightening piece need not be screwed back to original position, for faying face when simplifying operation, and avoiding dismounting
Damage.
Brief description of the drawings
The utility model with reference to the accompanying drawings to be further described, wherein：
Fig. 1 is shown according to a kind of schematic perspective view of the decomposition of the fastener of exemplary embodiment of the present utility model；
Fig. 2 is another schematic perspective view decomposed for showing fastener shown in Fig. 1；
Fig. 3 is to show the schematic perspective view after the fastener combination shown in Fig. 1；
Fig. 4 is to show the partial schematic sectional view before the fastener combination shown in Fig. 1；
Fig. 5 is to show the partial schematic sectional view after the fastener combination shown in Fig. 1；
Fig. 6 is the schematic top plan view for showing the fastener shown in Fig. 5；
Fig. 7 is the schematic perspective view for the annular element for showing the fastener shown in Fig. 1；
Fig. 8 is the partial schematic sectional view for showing the annular element shown in Fig. 7；
Fig. 9 is the schematic top plan view for showing the annular element shown in Fig. 8；
Figure 10 is the partial schematic sectional view for the tightening piece for showing the fastener shown in Fig. 1；
Figure 11 is the schematic top plan view for the tightening piece for showing the fastener shown in Figure 10；
Figure 12 is the geometrical principle figure of the lead angle for the first faying face for showing the tightening piece shown in Fig. 1；
Figure 13 is to show the externally threaded lead angle with the screw rod of the tightening piece cooperation of embodiment of the present utility model
Geometrical principle figure；
Figure 14 is the schematic perspective view for showing the wrench device for dismantling the fastener；
Figure 15 is the schematic cross-sectional view for showing the wrench device shown in Figure 14；
Figure 16 is that the right side for showing the wrench device shown in Figure 15 regards schematic diagram；
Figure 17 is the left view schematic diagram for showing the wrench device shown in Figure 17.And
Figure 18 is the decomposing schematic representation for showing the fastener according to another exemplary embodiment of the present utility model.
Embodiment
Below by embodiment, and with reference to accompanying drawing, the technical solution of the utility model is described in further detail.
In specification, same or analogous drawing reference numeral indicates same or analogous part.It is following real to the utility model referring to the drawings
The explanation for applying mode is intended to explain overall utility model design of the present utility model, and is not construed as to this practicality
A kind of new limitation.
In addition, in the following detailed description, for ease of explaining, elaborating many concrete details to provide to present disclosure
The comprehensive understanding of embodiment.It should be apparent, however, that one or more embodiments can also in the case of these no details
It is carried out.In other cases, known construction and device diagrammatically embodies to simplify accompanying drawing.
Conceived according to utility model generally of the present utility model there is provided a kind of fastener, including：Tightening piece, quilt
It is configured to coordinating screw rod to be combined to fasten by fastener, the tightening piece includes the first main part of regular prism shape, described
The first faying face is provided with first end surfaces of tightening piece；And annular element, the annular element coaxially sets with the tightening piece
Put and use cooperatively, the annular element includes：It is provided with second main part of annular, the end surface of second main part
Second faying face, first faying face is combined with the second faying face so that the tightening piece is hindered when tightening piece pine moves back
Further pine move back；Flange part, is projected radially outwardly from the end relative with second faying face of second main part；
And multiple spaced first stop projections, described first stops projection in the outside of second main part from described convex
Edge is axially extending towards second faying face, wherein described first stops that the external diameter of projection is more than the outer of the tightening piece
Footpath.Wherein described tightening piece and the first stop projection of the annular element are suitable to be combined with the wrench device being engaged, and realize
The synchronous dismounting of the tightening piece and the annular element.
According to an exemplary embodiment, fastener of the present utility model can be applied in Work machine, be used for example as
The connector of creeper tread, chassis member in engineering truck.Due to the severe applying working condition of Work machine, have in use
The generation for having larger vibration and larger load, especially transverse load make it that the tightening piece in fastener can be with using
The passage of time and loosen.
It will be appreciated by those of skill in the art that the annular element can cause by using various measures its with by between fastener
Form larger frictional force, and annular element and the friction between tightening piece and annular element is more than by the frictional force between fastener
Power.So, under certain external force effect, remained stationary as in tightening piece relative to annular element when being loosened by fastener.
According to a kind of embodiment of the present utility model, the tightening piece has four-prism shape, positive six prismsby shape or other
Regular prism shape.As shown in figs. 1-11, the tightening piece is nut 1, and the nut is matched somebody with somebody with screw rod 100 (Figure 13) screw thread
Close.Nut 1 can be the conventional nut such as tetragonal nut, hex nut.It is as shown in figure 18, described to twist in another embodiment
Tight part is bolt head 200, the bolt head 200 with coordinate the integrally connected of screw rod 201 and together with rotate.So, the He of bolt head 200
Screw rod 201 constitutes a bolt.Bolt head 200 can be corner bolt head, hexagonal bolt head or other common bolt heads
Shape.
Referring to Fig. 1-17, the fastener of the utility model embodiment is described so that tightening piece is nut as an example.
According to an exemplary embodiment of the present utility model, the fastener includes：It is configured to the tightening piece of nut
1, the nut is configured to coordinating screw rod 100 to be combined to fasten by fastener (not shown), described to tighten as Fig. 2 goes out
Part includes being provided with the first faying face (in Fig. 2 on the first main part 11 of regular prism shape, the first end surfaces of the tightening piece
The upper end face of nut)；And annular element 2, the annular element 2 is coaxially disposed and uses cooperatively with the tightening piece 1, the ring
Shape part 2 includes：The second faying face is provided with (in Fig. 1 on second main part 22 of annular, the end surface of second main part
The upper end face of annular element 2), first faying face is combined with the second faying face so that institute is hindered when tightening piece pine moves back
The further pine for stating tightening piece moves back；Flange part 21, the flange part 21 is combined from second main part 22 with described second
The relative end in face is projected radially outwardly；And multiple spaced first stops projections 23, described first stops that projection exists
The outside of second main part is axially extending from the flange part towards second faying face, wherein described first stops prominent
The external diameter risen is more than the external diameter of the tightening piece；The first of wherein described tightening piece and the annular element 2 stop projection be suitable to
The wrench device 3 (being shown in Figure 14-17) being engaged is combined, and realizes that the synchronization of the tightening piece and the annular element is torn open
Dress.
The wrench device 3 can realize that the synchronization when fastener is installed for tightening piece 1 and annular element 2 is tightened, simultaneously
It can also be used for realizing in disassembly of fastener and dismantled for tightening piece 1 and the synchronous of annular element 2, without damaging tightening piece 1 and ring
Faying face between shape part 2.Specific mode of operation will be described later.
According to an exemplary embodiment of the present utility model, described first stops that projection includes at least two first resistances
Projection 23 is kept off, described at least two first stop that the circumferencial direction of radial outer side of the projection 23 along second main part 22 is equal
Even distribution.According to an exemplary embodiment of the present utility model, described first stops the quantity and the positive rib of projection 23
The side number of post is corresponding.For example, when the nut tightening piece 1 is positive tetragonal nut, first stops that number of projection can be set
For 4, when the nut tightening piece 1 is positive hex nut, the first stop number of projection may be configured as 6.
According to an exemplary embodiment of the present utility model, as shown in Figure 1, 2, first faying face is included at least
Two the first joint portions, second faying face includes corresponding at least two second joint portion, and first joint portion includes
The the first oblique blocking surface 122 of faying face 121 and second extended in a circumferential direction, second joint portion is included in circumferencial direction
The first oblique blocking surface 222 of faying face 221 and second of upper extension, wherein the first oblique quilt of faying face 121 of first joint portion
It is configured to be engaged with the first oblique faying face 221 of the second joint portion and contacts, the quilt of the second blocking surface 122 of first joint portion
It is configured to be engaged with the second blocking surface 222 of the second joint portion and contacts, realizes the combination of nut and the annular element.
Figure 12 is the geometrical principle figure of the lead angle for the first faying face for showing nut.Figure 13 is to show with this practicality newly
The geometrical principle figure of the externally threaded lead angle for the screw rod that the nut of the embodiment of type coordinates.According to one of the present utility model
Exemplary embodiment, the first oblique faying face 221 of the first oblique faying face of faying face 121 and second of the first faying face is respectively formed
Helicoid with identical lift angle is to cooperate.In fig. 12, the expansion chi for helicoid that Figure 12 right part is shown
Very little relation schematic diagram.φ is the lead angle of the first oblique faying face 121 and 221.Ph is the climbing height of helicoid, and D is spiral
The central diameter in face.In fig. 13, α is the externally threaded screw thread liter of the screw rod 100 coordinated with the nut of embodiment of the present utility model
Angle, d is the big footpath of screw flight, and d1 is screw flight path, and d2 is screw flight central diameter.Because nut 1 and screw rod are matched somebody with somebody
Close, the lead angle of the internal thread of nut 1 is also α.
According to a kind of exemplary embodiment of the present utility model, as shown in Figure 1, 2, the first of first joint portion tiltedly ties
First oblique faying face 221 of the joint portion of conjunction face 121 and second is respectively formed the helicoid with identical lift angle to cooperate.Spiral
The lead angle φ in face is more than the spiral of the helicoid on the screw flight lift angle α, the second joint portion of the annular element 2
The direction of rising screws screwing in the opposite direction for the direction i.e. internal thread of nut with the screw rod.So, it is relative in annular element 2
It is static and nut 1 rotates to an angle relative to screw rod 100 on the direction in opposite direction with screw flight in screw rod 100
In the case of, climb altitude of the outside of nut 1 relative to annular element 2 on axis direction (upwardly direction in Fig. 1) is more than spiral shell
Height is moved back in female inner side relative to the pine of screw flight (upwardly direction in Fig. 1) in the axial direction, due to screw rod, annular element
Be by fastener it is static so that 1 pair of nut be engaged screw rod stretching, i.e., nut further compresses annular element, makes
Annular element is obtained further to compress by fastener.Therefore, annular element has the effect of lock washer.
Those skilled in the art it is also understood that corresponding to the different lead angles of fastener, screw connector
The lead angle of internal thread will also be adjusted accordingly.
According to an exemplary embodiment of the present utility model, as shown in figure 3, described first stops the position of projection 23
It is configured to when the second blocking surface 122 of first joint portion is contacted with the second blocking surface 222 of the second joint portion, it is described
First stops that plane of the projection 23 in a circumferential direction relative to the incline for passing through regular prism in radial directions is symmetrical.
According to an exemplary embodiment of the present utility model, as shown in Fig. 1-4,9, in the circumference of the annular element 2
On direction, formed and stop that the central angle β of the recess 24 between projection 23 is more than described first and stopped two adjacent described first
The central angle γ of projection 23.
According to an exemplary embodiment of the present utility model, on the circumferencial direction of the annular element 2, formed two
Adjacent described first stops that the central angle β of the recess 24 between projection 23 is the described first central angle γ's for stopping projection 23
Twice.
According to an exemplary embodiment of the present utility model, on the circumferencial direction of the annular element 2, described first
The central angle γ for stopping projection 23 is 20 °.
According to an exemplary embodiment of the present utility model, the tightening piece includes same from first main part 11
Axially extending the first annular protuberance 12 in axle ground, as shown in Fig. 2 first faying face formation is in first protuberance
On the surface of 12 remote first main part 11.According to an exemplary embodiment of the present utility model, described first
Protuberance 12 is identical with the external diameter of second main part 22.
According to an exemplary embodiment of the present utility model, in order that proper nut is installed with annular element 2 when combining,
Second blocking surface 122,222 abuts against to realize being mutually located for nut and annular element 2, and prevent nut 1 with
That closes screw flight screws rotation of the direction identical direction relative to annular element 2, second blocking surface 122,222 and water
The angle of plane is identical, and is disposed as obtuse angle or right angle.
According to an exemplary embodiment of the present utility model, as shown in Fig. 2 the close of the annular element 2 is fastened
Ratchet 212 is formed with the surface of the side of element, the ratchet 212 is constructed such that annular element 2 and by between fastener
Frictional force is more than the frictional force between nut 1 and annular element 2, make it that annular element 2 is relative when nut 1 is relative to screw bolt loosening
Remained stationary as in by fastener and screw rod.
According to a kind of exemplary embodiment of the present utility model, the ratchet 212 is configured to as shown in Figure 2 in annular element
It is arranged radially on the surface by the side of fastener.The number of the radial ratchet is more than the first joint portion and matching
The quantity for the second joint portion closed, the ratchet of compact arranged radial setting causes annular element 2 and produced between fastener
Larger frictional force, the frictional force is more than the frictional force between nut 1 and annular element 2 so that the phase of annular element 2 in nut loosening
For being remained stationary as by fastener.
According to a kind of exemplary embodiment of the present utility model, the tightening piece includes the second protuberance 13, described second
Protuberance 13 extends from one end of first protuberance 12, and second protuberance 13 is accommodated in the ring as shown in Figure 5
In shape part.
According to a kind of exemplary embodiment of the present utility model, the nut 1 is configured to both with the annular element 2
It can not be kept completely separate.
According to a kind of exemplary embodiment of the present utility model, second protuberance 13 from first protuberance radially
Obliquely outward extension is formed.Second protuberance 13 is engaged with the endoporus of the annular element so that the tightening piece phase
Rotate but can not depart from from the annular element 2 for the annular element.
According to a kind of exemplary embodiment of the present utility model, the endoporus of the annular element is big including the first hole 201, internal diameter
Inclined plane 203 in the second hole 202 of the internal diameter in first hole and connection first hole and second hole, wherein institute
The first hole position is stated in the first side of the close tightening piece of the annular element, second hole position is in the remote of the annular element
Second side of the tightening piece；The inclined plane is configured to stop second protuberance 13.As shown in figure 5, described
Second protuberance 13 is engaged with the inclined plane 203 so that the tightening piece rotates relative to the annular element but can not be from
The annular element departs from.Second protuberance 13 has the internal diameter in the first hole 201 than annular element 2 as shown in Figure 5 larger
External diameter.So, the second protuberance 13 is resisted against in inclined plane 203 as shown in Figure 5 so that the nut is relative to the ring
Shape part is rotated but can not departed from from the annular element.In one embodiment, by setting the second protuberance 13 in the axial direction
The upper height with forming the space between the inclined plane 203 in annular element 2 is less than the first and second blocking surfaces in axial side
Upward height, can make nut 1 to rotate predetermined angular range relative to annular element 2, so as to limit the screw rod being engaged
The distance stretched in the axial direction by nut 1, is, for example, less than 1.0mm, so that protect fastener to be not damaged by, the predetermined angular
Scope may be configured as the maximum allowable loosening angle of the maximum allowable loosening angle of fastener, i.e. fastener relative to the tightening piece
Degree.The maximum allowable loosening angle for example may correspond to coordinate the strength degree of screw rod.Specifically, according to the utility model
In the fastener of embodiment, due to the first oblique faying face 121 of the first joint portion be configured to it is the first of the second joint portion oblique
Faying face 221 is engaged contact, and the second blocking surface 122 of first joint portion is configured to the second resistance with the second joint portion
Block face 222 is engaged contact.So, when nut 1 leaves blocking surface and rotated relative to annular element 2, nut 1 will be gradually distance from ring
Shape part 2, but due to the second protuberance 13 and the limitation of the inclined plane 203 of annular element 2, nut 1 can only rotate relative to annular element 2
Predetermined angular range.In one embodiment, nut is 30-70 degree relative to the maximum angle scope that annular element is rotated, preferably
40-70 degree.
According to a kind of exemplary embodiment of the present utility model, second protuberance 13 is in first protuberance
13 reach the second side through the annular element from the first side of the annular element after formed by Sheet Metal Forming Technology.
According to an exemplary embodiment, the nut 1 and the annular element 2 or split part, only when in use
Ability temporary fit is used.
1-13 descriptions make used according to the locking of the nut fastener of embodiment of the present utility model below in conjunction with the accompanying drawings
Journey.
When the fastener of the utility model embodiment for example is used to fasten by fastener applied to engineering truck, by nut
1 and annular element 2 align, that is, cause the first joint portion the second blocking surface 122 and the second blocking surface 222 of the second joint portion match
Close, to prevent nut with coordinating screw rod to screw rotation of the direction identical direction relative to annular element.With coordinating screw rod
The direction identical direction that screws be tightened onto fastener 1 is overall by fastener, apply pretightning force and will be clamped by fastener
Fastening.
The pine that can produce nut 1 with the passage of use time moves back.It is due to annular element 2 and big by the frictional force between fastener
Frictional force between nut and annular element, when nut 1 is relative to 2 preliminary motion of annular element, annular element 2 relative to screw rod with
And remained stationary as by fastener.The preliminary motion be along the first joint portion for being engaged contact the first oblique faying face 121 with
What the first oblique faying face 221 of the second joint portion was carried out.As shown in Figures 12 and 13, due to the first oblique faying face 121 and first oblique
Faying face 221 is formed as helicoid, and the lead angle of the helicoid is more than the screw flight lift angle.Then moved back in nut pine
When, in the case where pine moves back and turned an angle, because the first protuberance and main part of nut are along the first oblique faying face
121 and 221 move along lead angle direction, and the climbing height on the outside of nut is more than the inside thread of nut from the screw rod being engaged
The height exited on 100 external screw thread, so as to form the stretching of the screw rod for being engaged.Therefore, nut internal thread and
Bigger coupling mechanism force is formed at the externally threaded mating connection for coordinating screw rod, the further pine that the coupling mechanism force suppresses nut 1 moves back.
And the screw rod being engaged produces the opposite pulling force towards annular element 2 to nut 1 so that nut 1 is downwardly against the annular
Part 2, annular element 2 is further compressed by fastener, therefore annular element 2 and, suppression fastening bigger by the frictional force between fastener
The motion of part.So, nut is more loose is moved back, and the stretching to screw rod produced due to lead angle and the difference of lead angle is got over
Greatly, so that coupling mechanism force is bigger, nut is caused to be less susceptible to release.
According to the exemplary embodiment of one side of the present utility model, there is provided a kind of spanner dress as shown in figures 14-17
3 are put, for above-mentioned fastener, the synchronous dismounting of the tightening piece and the annular element is realized, wherein：The wrench device bag
Include：3rd main part 31 of tubular；Multiple spaced second stop projection 320, are arranged on the inside of the 3rd main part,
And it is configured to the cooperation that is in contact with the first stop projection of the annular element；And joint portion 33, it is arranged on the 3rd master
On the inside of body portion, and it is configured to the regular prism shape that is engaged with the regular prism shape of the tightening piece；Wherein described second resistance
Keep off external diameter of the internal diameter more than the second main part of the fastener of projection so that be attached to the fastening in the wrench device
During part, the second stop projection offsets press-fit to activate the annular element with the corresponding first stop projection.
In one embodiment, during the wrench device fastens the fastener, described second stops projection
When 320 side is mutually compressed with the corresponding side of the first stop projection 23, the first faying face and the second knot of the fastener
Conjunction face is tightly coupled to each other, now, and the first of the first oblique joint portion of faying face 121 and second of first joint portion tiltedly combines
Face 221 is in contact with each other, and the second blocking surface 122 of first joint portion connects each other with the second blocking surface 222 of the second joint portion
Touch, to realize the synchronous axial system of the tightening piece and the annular element.So, joint portion applies screwing force, the second resistance to nut
Keep off projection and stop that projection applies actuating power to first, tightened while realizing both, and avoid and only pass through in fastener cycle
First blocking surface and the second blocking surface compressing contact and tightened while realizing both, it is to avoid for the first blocking surface and the
The damage of two blocking surfaces.And can make it that the tightening piece and the annular element are in when fastener is in tightening state
Best combination state, i.e. tightening piece do not loosen relative to annular element.
According to an exemplary embodiment of the present utility model, formed between two first adjacent stop projections 23
Recess 24 central angle β be more than described second stop projection 320 central angle.Cause that the central angle β of the recess 24 is big simultaneously
In the described second central angle for stopping projection 320 so that during wrench device is attached on fastener, if the second resistance
Gear projection 320 is resisted against the top of the first stop projection 23 on the axial direction of fastener, then is tightening piece 1 to tightening direction
Return direction rotary spanner device, without the initial position being returned to completely when tightening piece 1 does not loosen, therefore, simplify
Operate and avoid during return due to there is very big coupling mechanism force and the first faying face and the second faying face are caused
Damage.
According to an exemplary embodiment of the present utility model, formed between two first adjacent stop projections
The central angle β of recess 24 and it is described second stop projection 320 central angle between difference be not more than the tightening piece relative to
The maximum allowable loosening angle of the annular element.I.e. the difference is less than not damage the combination between tightening piece 1 and annular element 2
Face and the maximum allowable loosening angle set no more than the stretching tolerance limit for coordinating screw rod, the maximum allowable loosening angle
For example, 60 °.So that driving tightening piece 1 in unloading process relative to the maximum angular that annular element 2 rotates in wrench device
Degree is less than the maximum allowable loosening angle, so that damage will not be caused due to the operation in unloading process to faying face.To scheme
Exemplified by hex nut shown in 1-3, according to an exemplary embodiment, second stops projection 320 in the 3rd main part
Circumferencial direction on central angle and first stop that central angle of the projection 23 on the circumferencial direction of the annular element is 20 °.
And according to an exemplary embodiment, the central angle that the recess 24 between projection 23 is stopped positioned at two first is 40 °, for holding
Receive it is described second stop projection 320.And because second stops the central angle of projection 320 for 20 °, therefore, second stops projection
320 maximum angle relative to the rotation of annular element 2 in recess 24 is 40 ° -20 °, i.e., 20 °.
According to a kind of exemplary embodiment of the present utility model, wherein described second stops the quantity of projection 320 and the
One stops that the quantity of projection 23 is identical, so that when the wrench device is attached to the fastener, described second stops projection
320 are inserted between corresponding two adjacent first stop projections 23.
According to a kind of exemplary embodiment of the present utility model, as shown in Fig. 1,14,17, second stops projection described
Central angle and first on the circumferencial direction of 3rd main part stop central angle of the projection on the circumferencial direction of the annular element
It is identical.
According to a kind of exemplary embodiment of the present utility model, for hex nut, second stops projection 320 described
Central angle and first on the circumferencial direction of 3rd main part stop the center of circle of the projection 23 on the circumferencial direction of the annular element
Angle is 20 °.
According to an exemplary embodiment of the present utility model, as shown in figure 17, in the circumferencial direction of the 3rd main part
On, described second stops the position of projection (320) relative in the regular prism side for passing through the joint portion in radial directions
The plane of heart point deviates certain angle towards the tightening direction of fastener.
According to an exemplary embodiment of the present utility model, deviation the angle ranging from 10 °.
According to an exemplary embodiment of the present utility model, wherein the wrench device further comprises：Connecting portion
34, the connecting portion formation is configured to be connected with external tool in the inner side of the 3rd main part 31, to turn
State wrench device.
According to an exemplary embodiment of the present utility model, as shown in figure 15, the connecting portion formation is described the
The inner side of three main parts 31, and be configured to be connected with external tool, to turn the wrench device.
According to an exemplary embodiment of the present utility model, as shown in figure 15, formed in the connecting portion along institute
That states the 3rd main part radially extends the through hole inserted for handle.
According to a kind of exemplary embodiment of the present utility model, as seen in figs. 15-17, the joint portion is formed as hexagon
Shape.
According to a kind of exemplary embodiment of the present utility model, as seen in figs. 15-17, the connecting portion is formed as quadrangle
Shape.
The operating process tightened and dismantled to fastener using wrench device 3 is detailed below：
When tightening, annular element 2 is inserted in first, and makes using wrench device 3 regular prism of its joint portion 33 and tightening piece 1
Lateral surface be engaged and screw in tightening piece 1, until the second blocking surface 122 and annular element 2 of the first joint portion of tightening piece 1
The second blocking surface 222 of the second joint portion abut against.Now, according to an exemplary embodiment, as shown in figure 3, for example
For hex nut, stop that projection 320 and first stops that the central angle of projection is 20 ° due to second, and described the
In a circumferential direction relative to the sagittal plane where the incline of corresponding regular prism symmetrically, i.e., first stops one stop projection 23
Projection 23 is respectively 10 ° relative to the both sides angle of the sagittal plane where incline, then the second resistance of the first joint portion of tightening piece 1
When block face 122 and the second blocking surface 222 of the second joint portion of annular element 2 are abutted against, relative to the positive rib of the joint portion 33
Sagittal plane where the central point on post side stops being located under tightening direction of projection 320 towards tightening direction deviates 10 ° second
The side of trip (is shown in phantom in figure 6 with stopping that the side of projection 23 is abutted against positioned at the first of tightening direction downstream
The side of one of them second stop projection 320 and the first stop projection 23 is abutted against, wherein the second stop projection 320
The angle for deviateing the sagittal plane where the central point on the regular prism side is 10 °) so that entering by the wrench device 3
One step realizes tightening for tightening piece 1 and annular element 2 along the rotation of tightening direction, realizes the pretension of fastener.
When proceeding by dismounting, due to the loosening of nut in use, the second blocking surface 122 of nut is remote
Second blocking surface 222 of the second joint portion of annular element 2, nut has along the first oblique faying face relative to annular element 2
221st, 121 relative movement.Now, it is inserted in the wrench device 3 so that the joint portion 33 of wrench device 3 and regular prism shape
The lateral surface of the tightening piece of shape is combined, and wrench device 3 is moved towards fastener, if the second of wrench device 3 stops projection
320 do not stop that then the second stop projection 320 enters corresponding two adjacent first by the first stop projection 23 of annular element
Between stop projection 23；If the second stop projection is stopped by the first stop projection, with coordinating screw rod to screw direction
Rotary spanner device 3 on identical direction so that nut edge is moved back direction in opposite direction with pine and moved, until wrench device 3
Second stop projection 320 of the second stop projection enters corresponding two adjacent first and stopped between projections 23, backward dismounting
Direction rotary spanner device 3, stops until the second stop projection 320 is compressed positioned at corresponding the first of the downstream of disassembly direction
In projection 23, and the annular element 2 and nut are turned with the further rotating for wrench device 3, by nut 1 and ring
The synchronous dismounting of shape part 2.Illustrate as a kind of example, according to an exemplary embodiment of the present utility model, for hexagonal
Nut, because two first stop that angle of the recess 24 on the circumferencial direction of annular element between projection 23 is 40 ° on annular element,
And described second stops that projection 320 is 20 ° in the angle of circumferencial direction, then the second stop projection 320 is being compressed positioned at tearing open
Before unloading in the first stop projection 23 in direction downstream, second stops the maximum rotation of projection 320 in recess in a circumferential direction
Gyration is that 20 °, i.e. wrench device drive tightening piece 1 to be 20 ° relative to the maximum angle that annular element 2 rotates, and the angle is less than
In order to not damage faying face between tightening piece 1 and annular element 2 and be set no more than the stretching tolerance limit for coordinating screw rod
Maximum allowable loosening angle.
It will be understood by those skilled in the art that above-mentioned use hex nut is as an example, the example is exemplary rather than limit
Property processed, according to different nut styles and different application needs, the regular prism side number of nut, first stop projection and the
Two stop that number of projection, first stop that projection and the central angle of the second stop projection and the central angle of recess respectively can bases
Need and specifically set.For example, position of the first stop projection 23 on the lateral surface of the second main part can be differently configured from and show
The embodiment gone out, can set the optional position on the circumferencial direction of lateral surface, and its quantity is also without the side number with regular prism
It is corresponding.And first stop projection 23 central angle and the central angle of recess 24 can also change, can be set first and stop prominent
22 smaller or greater central angle is played, as long as tightening and do not damaging faying face and fastening for fastener can be realized
The dismounting for fastener is realized on the basis of part.As a same reason, projection 320 is stopped for second, it can be relative to
Sagittal plane where the central point on the side of positive seamed edge is deviateed, and can not also be done and be deviateed, as long as can realize in spanner dress
During putting the fastening fastener, when first blocking surface and the second blocking surface are contacted, described second stops projection
Side with first stop projection corresponding side mutually compress, to realize the synchronous axial system of the tightening piece and the annular element
.
In the process, external tool can be used to insert the connecting portion 34, so as to be pulled by external tool via described
Arm device is tightened or dismantled to the fastener.
Using the wrench device, no matter which kind of use state nut is under, is loosened in maximum within angular range, this is pulled
Arm device can be inserted in nut and annular element in any angle, and nut and annular element are screwed out simultaneously.And avoid dismounting
When for faying face damage.And structure of the present utility model to screw back tightening piece during dismounting to original position, letter
Operation is changed.For the damage of faying face when avoiding dismounting simultaneously.And the wrench device is used, it can both realize fastener
Installation pretension, the dismounting of fastener can be realized again.
Figure 18 is the decomposing schematic representation for showing the fastener according to another exemplary embodiment of the present utility model.Figure 18
The difference of shown fastener 20 and the fastener 10 shown in Fig. 1-11 is, in the fastener 20 shown in Figure 18, twists
Tight part is the bolt head 200 rotated with the integrally connected of screw rod 201 and together with screw rod 201.
Referring to Figure 18, fastener 20 includes bolt and annular element 2, and bolt includes integrally connected and the bolt head rotated together
200 and the screw rod 201 with threaded portion.The first faying face is formed on the first end surfaces (lower surface in Figure 18) of bolt head.
Annular element 2 is coaxially disposed with bolt head, and screw rod 201 passes through the through hole of annular element.First faying face is combined with second
Face is combined so that hinder the further pine of the bolt head 200 to move back when the pine of bolt head 200 moves back.
In the fastener 20, the second faying face of the structure of annular element, the first faying face of bolt head and annular element
Structure and combination are identical with the structure and combination in the fastener shown in Fig. 1-11, will not be repeated here.
The above wrench device is equally applicable to the installation and removal of the fastener 20, for the fastener 20
Install, the installation of unloading process and fastener 10, unloading process it is identical, will not be repeated here.
Fastener according to the above-mentioned various embodiments of the utility model, by cooperating tightening piece and matching somebody with somebody for annular element
With so that tightening piece is more loose to move back, and screw fastening clamp force is tighter, causes tightening piece not release, so that playing suppression tightening piece enters one
The effect that step pine moves back.And no matter which kind of use state nut is under, is loosened in maximum within angular range, the wrench device
Nut and annular element can be inserted in any angle, and nut and annular element are screwed out simultaneously.And when avoiding dismounting for
The damage of faying face.And structure of the present utility model to screw back tightening piece to original position during dismounting, simplifies behaviour
Make.For the damage of faying face when avoiding dismounting simultaneously.
It will be understood to those skilled in the art that embodiment described above is all exemplary, and this area
Technical staff can make improvements, the rushing in terms of not recurring structure or principle of the structure described in various embodiments
Independent assortment can be carried out in the case of prominent.
After preferred embodiment of the present utility model is described in detail, those skilled in the art can be clear
Solution, is not departing from the protection domain of appended claims with that can carry out various change under spirit with changing, and the utility model is also
It is not only restricted to the embodiment of examples cited embodiment in specification.
Claims (32)
1. a kind of fastener, including：
Tightening piece (1), is configured to coordinating screw rod to be combined to fasten by fastener, the tightening piece includes regular prism shape
The first faying face is provided with first main part (11), the first end surfaces of the tightening piece；And
Annular element (2), the annular element is coaxially disposed and used cooperatively with the tightening piece, and the annular element includes：
The second faying face, described first are provided with the second main part (22) of annular, the end surface of second main part
Faying face is combined with the second faying face so that hinder the further pine of the tightening piece to move back when tightening piece pine moves back；
Flange part (21), is projected radially outwardly from the end relative with second faying face of second main part (22)；
And
Multiple spaced first stop projections (23), and described first stops projection in the outside of second main part from institute
State that flange part is axially extending towards second faying face, wherein described first stops that the external diameter of projection is more than the tightening piece
External diameter；
Wherein described tightening piece and the first stop projection of the annular element are suitable to be combined with wrench device, are tightened described in realization
The synchronous dismounting of part and the annular element.
2. fastener according to claim 1, wherein,
Described first stops that number of projection is corresponding with the side number of the regular prism.
3. fastener according to claim 2, wherein, first faying face includes at least two first joint portions, institute
Stating the second faying face includes corresponding at least two second joint portion, and first joint portion includes what is extended in a circumferential direction
First oblique faying face and the second blocking surface, second joint portion include the first oblique faying face for extending in a circumferential direction and the
Two blocking surfaces, wherein the first oblique faying face of first joint portion is configured to the first oblique faying face phase with the second joint portion
Coordinate contact, the second blocking surface of first joint portion is configured to the second blocking surface matching splice grafting with the second joint portion
Touch, to realize the combination of tightening piece and the annular element.
4. the fastener according to any one of claim 1-3, wherein, the position of the first stop projection is configured to
When the second blocking surface of first joint portion is contacted with the second blocking surface of the second joint portion, described first stops projection point
Plane not in a circumferential direction relative to the incline for passing through regular prism in radial directions is symmetrical.
5. fastener according to claim 4, wherein, on the circumferencial direction of the annular element, formed adjacent two
Described first stops that the central angle of the recess (24) between projection is more than the described first central angle for stopping projection.
6. fastener according to claim 5, wherein, on the circumferencial direction of the annular element, formed adjacent two
The central angle of recess between the first stop projection is twice of the described first central angle for stopping projection.
7. fastener according to claim 6, wherein, on the circumferencial direction of the annular element, described first stops prominent
The central angle risen is 20 °.
8. fastener according to claim 1, wherein, the tightening piece includes：
From first main part (11) coaxially axially extending annular the first protuberance (12), the first faying face shape
Into on the surface in remote first main part of first protuberance (12).
9. fastener according to claim 8, wherein, first protuberance (12) and second main part (22)
External diameter is identical.
10. fastener according to claim 3, wherein, the first oblique faying face of first joint portion and second is combined
The first oblique faying face in portion is respectively formed the helicoid with identical lift angle to cooperate, and the lead angle of the helicoid is more than
The cooperation screw flight lift angle, the spiralling direction of the helicoid on the second joint portion of the annular element with it is described
Coordinate screwing for screw rod in opposite direction.
11. fastener according to claim 3, wherein, the second blocking surface of first joint portion and the second joint portion
The second blocking surface it is identical with the angle of horizontal plane, and be obtuse angle or right angle.
12. fastener according to claim 1, wherein, the annular element is formed with the side contacted by fastener
Ratchet, the ratchet is constructed such that annular element and is more than rubbing between tightening piece and annular element by the frictional force between fastener
Power is wiped, make it that annular element is remained stationary as relative to by fastener and screw rod when tightening piece is relative to screw bolt loosening.
13. fastener according to claim 12, wherein, the ratchet is configured to the surface in the second side of annular element
On be arranged radially.
14. fastener according to claim 1, wherein, the tightening piece has four-prism shape or positive six prismsby shape
Shape.
15. fastener according to claim 1, wherein, the tightening piece is nut, the nut and the cooperation screw rod
Screw thread coordinates.
16. fastener according to claim 8, wherein, the tightening piece includes：
Second protuberance (13), second protuberance (13) extends from one end of first protuberance (12), and described second
Protuberance is contained in the annular element.
17. fastener according to claim 16, wherein, second protuberance (13) is from first protuberance (12)
Extend with being radially outwardly sloping and form；
Second protuberance (13) is engaged with the endoporus of the annular element so that the tightening piece is relative to the annular element
Rotate but can not depart from from the annular element (2).
18. fastener according to claim 17, wherein, the endoporus of the annular element is big including the first hole (201), internal diameter
Inclined plane in the second hole (202) of the internal diameter in first hole and connection first hole and second hole, wherein institute
The first hole position is stated in the first side of the close tightening piece of the annular element, second hole position is in the remote of the annular element
Second side of the tightening piece；The inclined plane is configured to stop second protuberance (13).
19. fastener according to claim 18, wherein, second protuberance is worn from the first side of the annular element
Cross the annular element and reach what is formed by Sheet Metal Forming Technology after second side.
20. fastener according to claim 15, wherein, the nut is split part with the annular element.
21. fastener according to claim 1, wherein, the tightening piece is bolt head, and the bolt head coordinates with described
Screw rod integrally connected is simultaneously rotated together.
22. a kind of wrench device, for the fastener any one of claim 1-21, tightening piece and annular element are realized
Synchronous dismounting, wherein：
The wrench device includes：
3rd main part (31) of tubular；
Multiple spaced second stop projections (320), are arranged on the inside of the 3rd main part, and be configured to it is described
First stop projection of annular element is in contact cooperation；And
Joint portion (33), is arranged on the inside of the 3rd main part, and be configured to the regular prism shape phase with the tightening piece
The regular prism shape of cooperation；
Wherein described second stops that the internal diameter of projection is more than the external diameter of first main part (22) so that in the wrench device
When being attached to the fastener, the second stop projection offsets press-fit to activate the ring with the corresponding first stop projection
Shape part.
23. wrench device according to claim 22, wherein, fasten the process of the fastener in the wrench device
In, when stopping that the corresponding side of projection is mutually compressed with first in the side of the described second stop projection, the of the fastener
One faying face is tightly coupled to each other with the second faying face, to realize the synchronous axial system of the tightening piece and the annular element.
24. the wrench device according to claim 22 or 23, wherein, formed between two first adjacent stop projections
Recess (24) central angle be more than described second stop projection (320) central angle.
25. wrench device according to claim 24, wherein, form recessed between two first adjacent stop projections
The central angle in portion (24) and it is described second stop projection (320) central angle between difference be not more than the tightening piece relative to
The maximum allowable loosening angle of the annular element.
26. wrench device according to claim 25, wherein described second stops that number of projection stops projection with first
(23) quantity is identical, so that when the wrench device is attached to the fastener, described second stops projection (320) insertion
To between corresponding two adjacent first stop projections (23).
27. wrench device according to claim 22, wherein, second stops projection in the circumference side of the 3rd main part
Upward central angle stops that central angle of the projection on the circumferencial direction of the annular element is identical with first.
28. wrench device according to claim 27, wherein, second stops projection in the circumference side of the 3rd main part
Upward central angle and first stops that central angle of the projection on the circumferencial direction of the annular element is 20 °.
29. wrench device according to claim 22, wherein, on the circumferencial direction of the 3rd main part, second resistance
The plane of central point of the position relative to the regular prism side for passing through the joint portion in radial directions of projection (320) is kept off towards tight
The tightening direction of firmware deviates certain angle.
30. wrench device according to claim 29, wherein, deviation the angle ranging from 10 °.
31. wrench device according to claim 22, wrench device further comprises：
Connecting portion (34), the connecting portion formation is configured to and external tool in the inner side of the 3rd main part (31)
It is connected, to turn the wrench device.
32. wrench device according to claim 31, wherein being formed in the connecting portion along the 3rd main part
Radially extend the through hole inserted for handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720139642.9U CN206495871U (en) | 2017-02-16 | 2017-02-16 | Fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720139642.9U CN206495871U (en) | 2017-02-16 | 2017-02-16 | Fastener |
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| Publication Number | Publication Date |
|---|---|
| CN206495871U true CN206495871U (en) | 2017-09-15 |
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ID=59805081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720139642.9U Active CN206495871U (en) | 2017-02-16 | 2017-02-16 | Fastener |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443288A (en) * | 2017-02-16 | 2018-08-24 | 孙愉后 | Fastener |
| CN108591228A (en) * | 2018-05-28 | 2018-09-28 | 忻建国 | A kind of anti-loosen screw nut component and stop nut lock |
| CN109538605A (en) * | 2017-09-21 | 2019-03-29 | 孙愉后 | Fastener |
-
2017
- 2017-02-16 CN CN201720139642.9U patent/CN206495871U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443288A (en) * | 2017-02-16 | 2018-08-24 | 孙愉后 | Fastener |
| CN108443288B (en) * | 2017-02-16 | 2024-04-16 | 孙愉后 | Fastening piece |
| CN109538605A (en) * | 2017-09-21 | 2019-03-29 | 孙愉后 | Fastener |
| CN108591228A (en) * | 2018-05-28 | 2018-09-28 | 忻建国 | A kind of anti-loosen screw nut component and stop nut lock |
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Effective date of registration: 20180125 Address after: 362271 Fujian city of Quanzhou province Jinjiang Economic Development Zone East ANN Patentee after: Fujian Jinjiang City Lijing Automobile Parts Co., Ltd. Address before: 362271 Fujian city of Quanzhou province Jinjiang Economic Development Zone East Road No. 26, Anne Patentee before: Sun Yuhou |
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