CN202811681U - Self locking device and locking and unlocking device thereof - Google Patents
Self locking device and locking and unlocking device thereof Download PDFInfo
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- CN202811681U CN202811681U CN 201220001399 CN201220001399U CN202811681U CN 202811681 U CN202811681 U CN 202811681U CN 201220001399 CN201220001399 CN 201220001399 CN 201220001399 U CN201220001399 U CN 201220001399U CN 202811681 U CN202811681 U CN 202811681U
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- frictional contact
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Abstract
A self locking device and a locking and unlocking device thereof are disclosed, wherein the self locking device includes a pedestal provided with a first a fourth friction contact surfaces on an inner wall; a self locking member provided with a second and a third friction contact surfaces and at least one part configured to be positioned in the pedestal, so as to make the second friction contact surface to face the first friction contact surface, and the third friction contact surface to face the fourth friction contact surface; and a first lock block arranged between the first and the second friction contact surfaces and contacted with the first and the second friction contact surfaces, and a second lock block arranged between the third and the fourth friction contact surfaces and contacted with the third and the fourth contact surfaces, wherein the first and the second lock blocks are configured to enable the self locking member to move along a first direction relative to the self locking pedestal under the outside force effect, yet to be locked still in a second direction opposite to the first direction, thereby enabling the self locking member to be locked at any continuous lock position.
Description
Technical field
The utility model relates to a kind of self-locking device and locking and tripper.
Background technique
In the prior art, securing means is normally implemented locking by fastening means such as fastened by screw, card, pins, the relative position of fastening object is just fixing, need securing means to be reopened and behind the position of adjusting fastening object, re-start fixing if the fixed position of fastening object is incorrect, such mode of operation is more time-consuming, and relatively requires great effort.For example, in building field, in the connection set of common scaffold, usually come connecting pipe (for example metal tube) with fastener.These fasteners come the fastening pipe by the mode of fastened by screw usually.These modes waste time and energy very much, and efficient is low.
In order to address this problem, but also provide in the prior art the securing means of self-locking, but the securing means that is somebody's turn to do self-locking uses click, lock tooth etc., but all there is following defective in the securing means of these self-lockings: one, the self-locking that these securing meanss all can only be realized level can't realize stageless self-locking; Its two, there is backhaul in these securing meanss in when locking.These two defectives have all affected the effect of securing means locking.
Summary of the invention
Main purpose of the present utility model is to provide a kind of self-locking device, particularly but be not limited to fastener for building field, and the locking and the tripper that are used for this self-locking device, to address the above problem at least.By self-locking device of the present utility model, can quick lock in object to be tightened, and fastening locking effect is good, and easy to use.For example, for fastener, can within several seconds time, realize locking, and can be in the moment release, it is extremely convenient to use.
According to an aspect of the present utility model, a kind of self-locking device with continuous locked position is provided, comprising: have the pedestal of cavity, the sidewall of this cavity comprises the first frictional contact surface; Latching member, its inwall has the second frictional contact surface, and described latching member is arranged to its at least a portion and is positioned at described cavity, so that described the second frictional contact surface is towards described the first frictional contact surface; The first lock dog, described the first lock dog are arranged between the second frictional contact surface of the first frictional contact surface of described pedestal and described latching member and with described the first frictional contact surface and contact with described the second frictional contact surface; Wherein, described the first lock dog is constructed such that described latching member is movable along first direction with respect to described self-locking pedestal, and on the second direction opposite with described first direction by locking (namely, locked maintenance is motionless), thus so that described latching member can be locked in arbitrarily described continuous locked position.
Preferably, the angle between described the first frictional contact surface and described the second frictional contact surface is α, and described lock dog with respect to the friction angle of described the first frictional contact surface is
Friction angle with respect to described the second frictional contact surface is
Wherein,
0<α≤17 ° preferably.
Preferably, described self-locking device also comprises holding member, described holding member is used for applying active force to described lock dog, so that described latching member is when being locked in described locked position, described lock dog keeps contacting with described the first frictional contact surface and the second frictional contact surface.
Preferably, described pedestal, latching member and lock dog are made of steel.
According on the other hand of the present utility model, a kind of self-locking device with continuous locked position is provided, comprising: have the pedestal of cavity, the sidewall of this cavity has the first frictional contact surface and the 4th frictional contact surface; Latching member, it has the second frictional contact surface and the 3rd frictional contact surface, described latching member is arranged to it and at least part ofly is positioned at described cavity, so that described the second frictional contact surface is towards described the first frictional contact surface, described the 3rd frictional contact surface is towards described the 4th frictional contact surface; And first lock dog and the second lock dog, described the first lock dog is arranged between the second frictional contact surface of the first frictional contact surface of described pedestal and described latching member and with described the first frictional contact surface and contacts with described the second frictional contact surface, the second lock dog is arranged between the 4th frictional contact surface of the 3rd frictional contact surface of described latching member and described pedestal and with described the 3rd frictional contact surface and contacts with described the 4th frictional contact surface, wherein, described the first lock dog and described the second lock dog are constructed such that described latching member is movable along first direction with respect to described self-locking pedestal, and on the second direction opposite with described first direction by locking, thereby so that described latching member can be locked in arbitrarily described continuous locked position.Used four frictional contact surfaces and two lock dogs in this self-locking device, for the mode of execution that only has a lock dog and two frictional contact surfaces, can make locking effect better.
Preferably, angle between described the first frictional contact surface and described the second frictional contact surface is α, angle between described the 4th frictional contact surface and described the 3rd frictional contact surface is α ', and described the first lock dog is respectively with respect to the friction angle of described the first frictional contact surface and described the second frictional contact surface
With
Described the second lock dog is respectively with respect to the friction angle of described the 3rd frictional contact surface and described the 4th frictional contact surface
With
Wherein,
And
Preferably, 0<α≤17 °, and/or 0<α '≤17 °.
Preferably, described the first frictional contact surface and the 4th frictional contact surface are symmetrical arranged with respect to the longitudinal axis of described pedestal, and described the second frictional contact surface and the 3rd frictional contact surface are symmetrical arranged with respect to the longitudinal axis of described latching member, so that α=α '.
Preferably, described self-locking device also comprises holding member, described holding member is used for applying active force to described the first lock dog and the second lock dog, so that when described latching member was locked in described locked position, described the first lock dog keeps contacting with described the first frictional contact surface and the second frictional contact surface and described the second lock dog keeps contacting with described the 3rd frictional contact surface and the 4th frictional contact surface.
Preferably, described holding member comprises spring and extends through the lock dog cover of described cavity, described latching member extends through described lock dog cover, the sidewall of described lock dog cover has and is suitable for holding the first hole of described the first lock dog and the second hole that holds described the second lock dog, one end of described lock dog cover has flange, it is outside that described spring is arranged on described pedestal, between the flange that the outer surface that is resisted against described pedestal and described lock dog overlap, described lock dog cover applied elastic force.
Preferably, described holding member comprises two springs and extends through the lock dog cover of described cavity, described latching member extends through described lock dog cover, the sidewall of described lock dog cover has and is suitable for holding the first hole of described the first lock dog and the second hole that holds described the second lock dog, described two springs are arranged in the described cavity, respectively described the first lock dog and described the second lock dog are applied elastic force.
Preferably, self-locking device also comprises:
Upper clamping frame, an end of described upper clamping frame are fixedly connected with described pedestal or are integrally formed with described pedestal;
Lower clamping frame, an end of described lower clamping frame is flexibly connected with an end relative with described pedestal of described upper clamping frame,
Wherein, described latching member extends through the cavity of described pedestal, when described latching member was positioned at described locked position, an end of described latching member and the other end of described lower clamping frame kept fastening, thereby described upper clamping frame and described lower clamping frame are tightened together.
Preferably, self-locking device also comprises:
Upper clamping frame, an end of described upper clamping frame are fixedly connected with described pedestal or are integrally formed with described pedestal;
Lower clamping frame, an end of described lower clamping frame is flexibly connected with an end relative with described pedestal of described upper clamping frame;
Clasp, one end of described clasp detachably is connected with described latching member, the other end of described clasp detachably is connected with the other end of described lower clamping frame, when described latching member was positioned at described locked position, described upper clamping frame and described lower clamping frame tightened together by described clasp.
Preferably, described self-locking device also comprises the first torsion spring, one end of described the first torsion spring is arranged on the described pedestal, and the other end of described the first torsion spring is arranged on the described latching member, and the active force of described the first torsion spring makes described latching member be positioned at the enable possition of described self-locking device; And/or,
Described self-locking device also comprises the second torsion spring, one end of described the second torsion spring is used for being connected and fixed described clasp and described lower clamping frame, the other end of described the second torsion spring is arranged on the described clasp, described the second torsion spring produces an active force, and this active force makes described clasp be positioned at the link position of described latching member and described clasp.
Preferably, described pedestal, latching member, the first lock dog and the second lock dog are made of steel.
Provide a kind of instrument for locking and the aforementioned self-locking device of release more on the one hand according to of the present utility model, by described instrument described self-locking device is applied active force, thus can be so that the locking of described self-locking device and release.
This instrument is long strip, and the one end is opening end, is used for the opened self-locking device; And the other end is the locking end, is used for the locking self-locking device; Wherein, be provided with side by side two crotches at opening end, be used for catching on the described pedestal standing part so that described instrument about this standing part rotation; Between these two crotches, be provided with two projections, be used for pressing down when rotated lock dog; This locking end has recess.
Perhaps, this instrument is long strip, and two ends respectively have a pair of pawl, and wherein the interval between a pair of pawl is different from another to the interval between the pawl.
Perhaps, this instrument is long strip, and the one end has two pairs of arc pawls, and these two pairs of arc pawls are relative in twos, consist of notched circular, and wherein the interval between a pair of arc pawl is different from another to the interval between the arc pawl.
The purpose that can realize self-locking by lock dog and the surface of contact of the utility model locking device, this locking device is the stageless self-locking device, therefore be to reach the locking effect of stepless continuous locked position with respect to one of advantage that the level locking is arranged in the prior art, and it is convenient to open, simple to operate, significantly improved efficient.For example, can conciliate snap close piece with the time locking than prior art much shorter, thus the convenient scaffold of installing.And self-locking device good stability of the present utility model can bear large load and dynamic load.
In addition, in the prior art, accurately aim at each other for the screw hole of each parts of screw connection by the fastener requirement that screw connects, being beneficial to screw connects, dimension precision requirement between each parts of this contacting piece is higher, thereby processing technology is required height, and processing cost also increases thereupon.And in the utility model, owing to adopt latching member to realize fastening between each parts of fastener for example not having above-mentioned high-precision requirement, therefore being easy to processing, processing cost is also lower.
Self-locking device noise of the present utility model is extremely low.
In order to make the better effects if of lock dog locking, this self-locking device can also comprise holding member, this holding member can comprise the Compress Spring the same with lock dog quantity, this Compress Spring applies an active force to lock dog, in the locked position of lock dog, this active force guarantees that each lock dog contacts with two frictional contact surfaces.
Self-locking device of the present utility model has stageless self-locking and/or fastening characteristics, namely can lock at an arbitrary position and/or fastening, makes locking and/or fastening degree more accurate, and can be in time internal locking and the release than thread much shorter.
This self-locking device and click, the lock tooth is compared does not have the backhaul gap.Can lock any one position of locked object motion process and/or fastening and backhaul gap that do not have, thereby guarantee the accurate locking of locked and/or fastening object and/or fastening.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of restriction of the present utility model.In the accompanying drawings:
Figure 1A is the schematic diagram according to self-locking device the first embodiment of the present utility model;
Figure 1B is the active force triangle schematic representation related according to self-locking device the first embodiment's of the present utility model principle;
Fig. 1 C is the structural drawing according to second and third embodiment of self-locking device of the present utility model;
Fig. 1 D is the schematic diagram according to second and third embodiment of self-locking device of the present utility model;
Fig. 2 A and 2B are respectively according to self-locking device the second embodiment's of the present utility model plan view and A-A face sectional view;
Fig. 2 C is the B-B face sectional view according to self-locking device the second embodiment of the present utility model;
Fig. 2 D is the C-C face sectional view according to self-locking device the second embodiment of the present utility model;
Fig. 3 A and 3B are respectively according to self-locking device the 3rd embodiment's of the present utility model plan view and A-A face sectional view;
Fig. 3 C is the B-B face sectional view according to self-locking device the 3rd embodiment of the present utility model;
Fig. 3 D is the C-C face sectional view according to self-locking device the 3rd embodiment of the present utility model;
Fig. 4 is the B-B face sectional view according to self-locking device the 3rd embodiment's of the present utility model modification lock dog;
Fig. 5 A is the plan view according to the utility model self-locking device the second embodiment's fastening piece (fastener);
Fig. 5 B is the A-A face sectional view according to the utility model self-locking device the second embodiment's fastener;
Fig. 5 C is the B-B face sectional view according to the utility model self-locking device the second embodiment's fastener;
Fig. 6 A is the plan view according to a kind of modification of the utility model embodiment's self-locking device fastener;
Fig. 6 B is the top perspective view according to a kind of modification of the utility model embodiment's self-locking device fastener;
Fig. 6 C is the face upwarding stereogram according to a kind of modification of the utility model embodiment's self-locking device fastener;
Fig. 6 D is the A-A sectional view according to a kind of modification of the utility model embodiment's self-locking device fastener;
Fig. 6 E is the B-B sectional view according to a kind of modification of the utility model embodiment's self-locking device fastener;
Fig. 6 F is the C-C sectional view according to a kind of modification of the utility model embodiment's self-locking device fastener.
Fig. 7 is the sectional view according to the utility model self-locking device the 3rd embodiment's complete rotary buckle;
Fig. 8 is the stereogram according to the utility model self-locking device the 3rd embodiment's complete right-angle coupler;
Fig. 9 A is the plan view according to the utility model self-locking device the second embodiment's jaw type fastening piece;
Fig. 9 B is the A-A sectional view according to the utility model self-locking device the second embodiment's jaw type fastening piece;
Fig. 9 C is the B-B sectional view according to the utility model self-locking device the second embodiment's jaw type fastening piece;
Figure 10 is the sectional view according to the utility model self-locking device second embodiment's snap fastener;
Figure 11 A, 11B and 11C are the views according to the utility model special tool.
Embodiment
Hereinafter also describe in conjunction with the embodiments the utility model in detail with reference to accompanying drawing.Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Below in conjunction with accompanying drawing exemplary preferred embodiment is described.
Self-locking device the first embodiment is described below.
Self-locking device according to the utility model the first embodiment comprises the pedestal 1 with cavity, a latching member 2, a lock dog 3(is the first lock dog), this lock dog 3 for example can be spherical, oval etc., preferably also comprise a holding member, holding member can comprise that spring and spring seat (for example can be the part of pedestal) form.The sidewall of the cavity of pedestal 1 comprises two frictional contact surfaces (that is, locking face) W, M.
The first embodiment's self-locking device essential structure and working principle are: two frictional contact surfaces α that has a certain degree, lock dog is clipped between two locking faces.One spring is arranged on the lock dog.Spring has a pretightening force that applies to α angular vertex direction.Effect by this elasticity pretightening force and lock dog cooperate with two locking face surface of contact, can realize the self-locking to latching member.When lock dog being applied and the rightabout power of spring force, lock dog can not compress two locking faces, has just removed the locking to lock dog, also with regard to release latching member.As long as lock dog does not get loose automatically, just can lock latching member.When needs release latching member, need to apply power to lock dog.
The first embodiment's of self-locking device self-locking theoretical foundation is as follows:
Principle according to self-locking, shown in Figure 1A, the first frictional contact surface W is R13 to the active force that lock dog 3 produces, the second frictional contact surface M is R23 to the active force that lock dog 3 produces, spring is P to the holding power of lock dog, P and the first frictional contact surface angle are β, and α is the angle between the first frictional contact surface W and the second frictional contact surface M
Be the friction angle of lock dog with respect to the first frictional contact surface W,
Be the friction angle of lock dog with respect to the second frictional contact surface M, wherein, friction angle
With coefficientoffrictionμ
1, μ
2Relation be
In the drawings, Y
1And Y
2The normal of expression frictional contact surface.
It is noted that according to actual conditions the friction factor of lock dog 3 and the first frictional contact surface W and the second frictional contact surface M can be identical, also can be different.Each parts of self-locking device can adopt different material (for example metal, plastics, pottery etc.) to make as required, and the material between all parts also can be different, even each parts itself also can be made by different materials.
Below in conjunction with Figure 1B, produce resistance during according to revesal and be less than or equal to zero condition and determine condition of self-locking.
Put in order:
If lock dog does not get loose automatically, then should make P≤0, because
So
Namely getting condition of self-locking is
Angle [alpha] is less than or equal to lock dog 3 with respect to the friction angle of the first frictional contact surface W
With the friction angle of lock dog 3 with respect to the second frictional contact surface M
Sum, namely
So that latching member can be movable under external force on first direction F1 with respect to pedestal, and locked maintenance is motionless on the second direction F2 opposite with first direction.Thereby so that latching member can be locked in continuous locked position any one.
In the situation that adopts steel making, for example the friction factor of steel and steel is about 0.15, its friction angle
Therefore, angle [alpha] should be less than about 17 °.But self-locking device can adopt any materials, and all parts also can adopt different materials.
Can several self-locking devices the first embodiment be set at required device by above-mentioned self-locking device first embodiment's principle, preferably can be symmetrical arranged two.
Fig. 1 C, 1D illustrate second and third embodiment's of this preferred embodiment self-locking device structure and principle.
Second and third embodiment of self-locking device comprises four frictional contact surface 11W, 12M, 12W, 11M, two lock dogs (the first lock dog and the second lock dog) 13,13a, holding member (can comprise two springs).
P and the second frictional contact surface 12M angle are β, the angle of the first frictional contact surface 11W and the second frictional contact surface 12M
The angle of the 3rd frictional contact surface 12W and the 4th frictional contact surface 11M satisfies
Be the second lock dog with respect to the friction angle of the 3rd frictional contact surface,
Be that the second lock dog is with respect to the friction angle of the 4th frictional contact surface.Suppose that the angle between second, third frictional contact surface 12M, the 12W is γ, the angle of the first frictional contact surface 11W and the 4th frictional contact surface 11M satisfies so
So that latching member can be under very little External Force Acting is moved and kept motionless by lock on the second direction F2 opposite with first direction at first direction.By above-mentioned principle, just can design above-mentioned angle, under the effect of lock dog, latching member can be locked in continuous any locked position.
Shown in Fig. 2 A-2D is the structural representation of self-locking device the second embodiment's preferred exemplary, and self-locking device the second embodiment comprises self-locking pedestal 21, latching member 22, holding member (comprising spring 24), two lock dogs 23,23a.Spring seat 25, pin 26, nut 27, fixing spring seat screw 28 also can preferably be set.
Self-locking pedestal 21 can have fixedly the miscellaneous part function concurrently and/or fix self function.Latching member 22 is hinged on the self-locking pedestal 21 by pin 26.Also be provided with simultaneously two locking face 21W, 21M(in self-locking pedestal 21 inwalls and be equivalent to the first and the 4th frictional contact surface 11W, 11M among Fig. 1 C, the 1D) and spring seat 24(spring seat can be the part of self-locking pedestal).Self-locking pedestal 21 is fixed by screw hole 21C and anchor clamps or other fixture.Certainly, self-locking pedestal 21 also can be integrally formed with anchor clamps.
Latching member 22 comprises that both sides locking face 22M, 22W(are equivalent to the second and the 3rd frictional contact surface 12M, 12W among Fig. 1 C, the 1D).Locking face 22M, the 22W of latching member both sides can be plane shape, also can be the ring-type (shape in Fig. 2 C on the B-B section) take latching member 22 center hole 22E as the center of circle, also can be that other make lock dog 23 can clamp the shape of rolling or sliding in the middle of two faces.Preferably, the section shape of the section shape of locking face 21W and 22M and locking face 22W and 21M and lock dog 23 profiles are roughly complementary, to increase the surface of contact of lock dog 23 and locking face.Two locking face 21W, 21M in the self-locking pedestal 21 are designed so that Self-locking angle α (namely, two angles that frictional contact surface becomes that contact with lock dog) first direction F1 is roughly pointed on summit, angle between latching member 22 both sides locking face 22W, the 22M is γ, and the angle between locking face 21W and the locking face 21M satisfies
Just realized the self-locking to latching member, so latching member 22 is rotatable along the F1 direction, and in opposite direction F2 motion.Only have lock dog to be applied external force it is not contacted with adjacent frictional contact surface one or both of, could be so that in opposite direction F2 motion of latching member, thereby to the latching member release.Latching member 22 both sides locking faces have open position ditch 22B, make latching member 22 often be in before use open position, improve installation efficiency.
Shown in Fig. 5 A-5C, self-locking device in the second embodiment arranges clasp 20, clasp 20 links together with lower clamping frame and/or is separable hinged, clasp 20 is lock jaw parts of lower clamping frame and the fastening object of upper clamping frame, thereby be the parts of realizing locking for the snapping latching member, clasp 20 shapes are varied, and square shape etc. under square shape, the upper T is arranged, take the requirement of satisfying lower clamping frame and the fastening object of upper clamping frame as purpose.
Upper clamping frame and lower clamping frame are the main bodys for fastening fastened object, and upper clamping frame and lower clamping frame link together by pin, add clasp 20 fastening objects, and upper clamping frame and lower clamping frame can be integrally formed, by clasp 20 fastening objects.
For example, self-locking device the second embodiment can comprise self-locking pedestal 21, latching member 22, two lock dogs 23,23a, two springs 24, spring seat 25, pin 26, clasp 20, nut 27, fixing spring seat screw 28.
Latching member 22 has the 22D of clasp place of the second frictional contact surface 22M, the 3rd frictional contact surface 22W, tool head 22C, latching member.
Self-locking pedestal 21 has the first frictional contact surface 21W, the 4th frictional contact surface 21M.
22D adds clasp 20 at the clasp place of latching member, and the object that clasp 20 will be fastening is fastening.
The nut 27 of selling 26 two outer ends can be the sled point that instrument is opened.
Shown in Fig. 3 A-3C is the structural representation of the preferred embodiment three of self-locking device, and this self-locking device embodiment three is a kind of modification of above-mentioned self-locking device embodiment two, and principle is identical with embodiment two.Self-locking device embodiment three comprises pedestal 31, and 32, two lock dogs 33 of latching member, 33a and lock dog cover (it hereinafter specifically describes as fastening and turned parts) 36 also can preferably include holding member (comprising cluster spring 34).Also can preferably be provided with spring seat 35, it can be the part of self-locking pedestal.In general, self-locking device embodiment three is that with above-mentioned self-locking device embodiment's two difference self-locking device embodiment three has adopted multi-form latching member 32, and has increased lock dog cover 36, but has identical self-lock mechanism.
Latching member 32 has frictional contact surface 32M, 32W(and is equivalent to the second and the 3rd frictional contact surface 12M, 12W among Fig. 1 C, the 1D).Locking tool sled face 35A preferably can be set, and is that instrument is put a 36B with sled face or sled that lock dog overlaps the sled face symmetry of 36 locking tools when locking self-locking device embodiment three.
Latching member can preferably be provided with cap or a 32C, is equivalent to cap or the T-shaped silk head of bolt.
Latching member 32 is identical with latching member 22 functions.
Two lock dogs 33,33a(are equivalent to lock dog 13, the 13a among Fig. 1 C, the 1D) can be trapezoidal, also can be spherical, also can be other shapes.
The elastic force that spring 34(spring applies is equivalent to the active force P among Fig. 1 C, the 1D) can be that spring sheet also can be that several springs form by a plurality of pressure points, it can overlap 36 to lock dog and exerts pressure, lock dog cover 36 couples of two lock dogs 33,33a exert pressure or and spring 34 and lock dog cover 36 jointly exert pressure (elastic force that spring applies is equivalent to the active force P among Fig. 1 C, the 1D).
Lock dog cover 36 can play restriction lock dog 33, the random rolling of 33a and when latching member 32 is taken away lock dog 33,33a drop out, between lock dog cover 36 and lock dog 33,33a, the lock dog cutting ferrule can be set, prevent that lock dog 33,33a come off when latching member 32 extraction lock dogs overlap 36.Preferably, one end of lock dog cover 36 is provided with flange, face 36A is propped up in locking on locking sled face 32A and the lock dog cover 36 makes self-locking device embodiment three lockings by prizing, depress simultaneously locking sled face 36A when levering up a locking face 32A, locking sled face 36A presses down lock dog 33,33a, 31 backhaul gaps of self-locking device embodiment are not also had, the amount of deformation of material is all absorbed.Unlatching sled face 36B prizes by instrument with a unlatching face 35B and makes lock dog cover 36 drive lock dogs break away from corresponding frictional contact surface, so that self-locking device embodiment three opens i.e. release.Here utilized lever principle.
Opening back the function of colluding 36E is when opening state, makes to open back to collude 36E and rest on the enable possition always.Specific operation are when instrument 7B, 7C prize lock dog and overlap 36 instruments and open sled face (or sled point) 36B, when instrument is opened sled face (or sled point) 36B away from self-locking pedestal 31 and spring seat 35, open back when colluding 36E and being raised to self-locking pedestal 31 and spring seat 35 outer end, spring 34A promotes lock dog cover 36 and colludes the inclination of 36E end to opening back, open back and collude the unlatching that 36E is stuck in self-locking pedestal 31 and spring seat 35 and prop up on the face 35B, make self-locking device embodiment three be in opening state always.To open back and collude 36E and reset, the self-locking device normal operation.
Inwall in the self-locking pedestal 31 comprises that two locking face 31W, 31M(are equivalent to the first, the 4th frictional contact surface 11W, the 11M among Fig. 1 C, the 1D), self-locking pedestal 31 can be established fixed base, and the effect of fixed base is to fix with fastening object hinged joint or other is fixed; Self-locking pedestal 31 also available screw is fixed together with fastening object; Self-locking pedestal 31 also can be integrated with fastening object; Self-locking device embodiment three is independently fastening pieces; Cluster spring 34 is fixed in the self-locking pedestal 31 by spring seat 35.
Two locking face 31W, 31M's in locking face 32M, the 32W of latching member both sides and the self-locking pedestal 31 is corresponding, so that lock dog 33,33a can clamp in the middle of two faces and roll.Preferably, the section shape of locking face 31W and 32M and the section shape of 31M and 32W and lock dog 33,33a profile are consistent, to increase the surface of contact of lock dog 33,33a and locking face.Two locking face 31W, 31M design in the self-locking pedestal 31 so that Self-locking angle α summit in the F1 direction, the angle between latching member 32 both sides locking face 32M, the 32W is γ, and the angle between locking face 31W and the locking face 31M
Realized the self-locking to latching member, so latching member 32 under external force can only be to F1 to motion, and in the opposite direction F2 is locked.
Preferably, the both sides at latching member 22 and latching member 32 arrange symplex structure, i.e. α=α '.
Shown in Fig. 4 is a kind of lock dog of self-locking device, and lock dog 33', 33a' are that the face contact increases the rubbing contact area with latching member 32 and contacting of self-locking pedestal 31.This lock dog 33', 33a' can reduce the amount of deformation of the frictional contact surface of latching member 32 and self-locking pedestal 31.
And the contact consistent with the first frictional contact surface 31W vertical angle of the first frictional contact surface 33W vertical angle of lock dog 33', and the contact consistent with the second frictional contact surface 32M vertical angle of the second frictional contact surface 33 ' M vertical angle; And the contact consistent with the 3rd frictional contact surface 32W vertical angle of lock dog 33a' the 3rd frictional contact surface 33a'W vertical angle, and the contact consistent with the 4th frictional contact surface 31M vertical angle of the 4th frictional contact surface 33a'M vertical angle.Lock dog 23 in this preferred embodiment, 33 adopts spherical.
The frictional contact surface shape of all of self-locking device of the present utility model first to fourth frictional contact surfaces and supporting lock dog profile or frictional contact surface form fit are to realize maximum locking area.
Shown in Fig. 6 A-6F is the structural representation of a kind of modification of self-locking device fastener, and the self-locking device fastener comprises self-locking pedestal 31,32, two lock dogs 33 of latching member, 33a, spring 34, spring seat 35, lock dog cover 36, pin 38, lower seat (or locked object) 39.
The function of latching member 32 is the critical components that connect locked object, and latching member 32 upper ends form self-locking devices with self-locking pedestal 31, and a lower end T-shaped silk 32C(or shape are nuts) clamp the locked object body and form and lock or fastening.
The second and the 3rd frictional contact surface 32M, 32W are equivalent to the second and the 3rd frictional contact surface 12M, the 12W among Fig. 1 C, the 1D on the latching member 32.The shape of frictional contact surface and lock dog form fit are to increase friction area; Opening ditch 32B on the latching member 32 is the ditch that the lock dog 33 when opening state stops, and is to guarantee not self-locking when vibrations of latching member 32.Consistent with the effect of 22B; Latching member 32 tightens prizing of the sled face 36A that locks on sled face 32A and the lock dog cover 36, makes the self-locking device locking.Opening ditch 32B also is fastening sled place.
Two lock dogs 33,33a are equivalent to lock dog 13 and the lock dog 13a among Fig. 1 C, the 1D;
Lock dog cover 36 is to open and fastening critical component, and it has two lock dog sliding channels; Its fastening sled face 36A and fastening face 32A are under the prizing of instrument 7B, 7C, lock dog cover 36 presses down two lock dogs 33,33a, two lock dogs 33,33a are stuck in respectively between the one or two frictional contact surface 31W, the 32M and between the three or four frictional contact surface 31M, the 32W tightly, make the fastening firm as screw fastener of self-locking device; The unlatching of lock dog cover 36 is propped up and is opened sled face 35B on face 36B and the spring seat 35 under the prizing of instrument, making lock dog cover 36 drive two lock dogs 33,33a promotes to spring seat 35 ends, two lock dogs 33,33a unclamp the second and the 3rd frictional contact surface 32M, the 32W of latching member 32, latching member 32 can be moved down, that is to say and to move freely to F2, F1 any direction.It is consistent with a unlatching face 36B effect to open sled hole 36D, and just used tool is different.Manually opened 36C opens with the unlatching sled 39A of place realization lock device under the prizing of instrument.Manually opened 36C also is manual opener, for ease of loading and unloading, and while or the pressure point of spring 34; Manually opened 36C only is used for the securing means of fastener class, and the securing means lock dog cover 36 of other classes is the lower ends that do not allow to surpass self-locking pedestal 31.
Self-locking pedestal 31 is vitals of self-locking device, and its first and the 4th frictional contact surface 31W, 31M is equivalent to the first and the 4th frictional contact surface 11W, the 11M among Fig. 1 C, the 1D.Self-locking pedestal 31 is connected by snapping or other modes with spring seat 35.Self-locking pedestal 31 can be made one with the fastener loam cake.
Lower (with locked object) the 39th, an end of anchor clamps is lower or a plurality of locked object at fastener.
Self-locking device of the present utility model can use separately, also can a plurality ofly be used in combination.
Tubbiness and/or various shape that self-locking device of the present utility model also goes for pressure need airtight device.Also go for not having pressure various need to connect maybe need to lock or various devices that needs are fastening on.
As an example, self-locking device the second embodiment's preferred exemplary is shown in Fig. 5 A-5C.The self-locking device of this paper can be used as fastener, therefore illustrates with fastener.But self-locking device of the present utility model can be not limited to fastener, can be used for various occasions.
Fig. 5 A, 5B, 5C, self-locking device the second embodiment's (fastener) instance graph is shown.This self-locking device can comprise that self-locking pedestal 21(is self-locking pedestal 21 and plays upper clamping frame effect with the combination of the loam cake of fastener), latching member 22, two lock dogs (23,23a), two springs 24, latching member torsion spring 24A, clasp torsion spring 24B, spring seat 25, pin 26,26A, nut 27, lower clamping frame 29, clasp 20, friction pad 201.
Have on the self-locking pedestal 21: the first frictional contact surface 21W, the 4th frictional contact surface 21M(are equivalent to the one or four frictional contact surface 11W, 11M among Fig. 1 C, the 1D).
In this fastener, fastener structures and conventional fastener structure are roughly the same, just traditional fastener loam cake and self-locking device the second embodiment are combined as a whole.Clasp 20 is hingedly connected together with the 39A of clasp place of lower clamping frame under clasp torsion spring 24B effect or links together with other forms.Self-locking pedestal 21 and lower clamping frame 29 are hinged or snap together by pin 26A.The clasp joint 22D of latching member and the relation of clasp 20 are locking relations.
The effect of latching member torsion spring 24A is when release, and latching member torsion spring 24A turns round the enable possition with the 22D of clasp place of latching member.Make clasp can freely break away from latching member 22.
The effect of clasp torsion spring 24B: the one, in clasp 20 rotatable situations, clasp 20 is fixed on the lower clamping frame 29; The 2nd, clasp torsion spring 24B turns round clasp 20 tightly and is attached on the clasp bumping post 29.
Need to prove that this self-locking device can comprise among torsion spring 24A and the second torsion spring 24B, also can two include.
Fig. 7, Fig. 8 illustrate self-locking device embodiment's three (fastener) preferred embodiment figure.Comprise self-locking device and button bowl 49, synthetic button bowl 59, connecting pin 38.Here note, the feature of above-mentioned self-locking device the second embodiment's fastener can with the feature combination in any of embodiment three fastener here.For example, embodiment three fastener also can have upper clamping frame and lower clamping frame, omits the description to it here.
Right-angle coupler is that 59 and two self-locking devices of a synthetic button bowl form.
Such as Fig. 9 A, 9B, 9C the instance graph of the modification (jaw type fastening piece) with self-locking device second embodiment is shown, comprises that self-locking pedestal 21(is self-locking pedestal 21 and the combination of upper clamping frame), latching member 22, two lock dogs (23,23a), two springs (24,24A), spring seat 25, nut 27, lower clamping frame 29, clasp 20, pin (26,26A).
Self-locking pedestal 21 has upper fore shaft 21A.
The interlock position of upper fore shaft 21A and lower fore shaft 29F can fastening varied object.Stationary plane according to fore shaft 21A and lower fore shaft 29F on the stationary plane shape adjustments of fastened object gets final product.
This jaw type fastening piece and above-described fastener structures principle are roughly the same.
This jaw type fastening piece self-lock mechanism is consistent with Figure 1A-2D self-lock mechanism.
This jaw type fastening piece can used aloned, also can a plurality ofly be used in combination.
Snap fastener shown in Figure 10 comprises that self-locking pedestal 21(is self-locking pedestal 21 and the combination of upper clamping frame), latching member 22, two lock dogs (23,23a), two springs 24, spring seat 25, nut 27, pin 28, lower clamping frame 29, clasp 20.
Self-locking pedestal 21 is provided with: upper clamping frame the first 21G of lock place, upper clamping frame the second 21H of lock place.
Can use one or more preferred four self-locking device the first embodiments.
A plurality of the first frictional contact surface W are arranged on the object that needs two fastening objects, corresponding a plurality of the second friction M is arranged on another object that needs two fastening objects with it, at any one object the lock dog slideway is set, lock dog can not come off when two objects were separated, press the lock dog spring be arranged on equally with the same object of lock dog slideway on.
Two locking sled points 71 of special tool 7B, 7C contact with two locking sled face 32A with two locking fulcrums 73 and contact with two locking sled face 36A, prize special tool 7B, 7C, realize self-locking device embodiment three locking.
Two unlatching sleds of special tool 7B, 7C point 75 contacts with two unlatching sled face 36B with two unlatching fulcrums 77 and contacts with two unlatching sled face 35B, prizes special tool 7B, 7C, realizes self-locking device embodiment three unlatching.
For convenient, table 1 is listed the reference character corresponding relation of each parts of the present utility model.
Table 1
Title | Reference character |
The first frictional contact surface | W, 11W, 21W, 31W |
The second frictional contact surface | M, 12M, 22M, 32M |
The 3rd |
12W, 22W, 32W |
The 4th |
11M, 21M, 31M |
The self-locking |
1,11,21,31 |
|
2,12,22,32 |
|
3,13,23,33,33 ' |
|
3a, 13a, 23a, 33a, 33a ' |
|
24,24A, 34, |
Spring seat | |
25,35 | |
|
26,26A, 38 |
|
27 |
Fixing |
28 |
Lower clamping |
29,39 |
|
20 |
|
21C |
Upper fore shaft | 21A |
Upper clamping frame the |
21G |
Upper clamping frame the |
|
Center hole | |
22E | |
Locking face |
22B, 32B, |
|
22C |
The |
22D |
The clasp joint | 29A |
Loam cake handing-over |
29B |
Fixed |
29C |
Another lower clamping frame joint | 29D |
The |
29E |
Lower fore shaft. | 29F |
Lower clamping frame the |
29G |
Lower clamping frame the |
29H |
Instrument locking |
32A |
Cap (or T-shaped silk head) | 32C |
The first frictional contact surface of |
33 ' W |
[0159]
The second frictional contact surface of |
33’M |
The 3rd frictional contact surface of |
33a’W |
The 4th frictional contact surface of |
33a’M |
Link the place with the self-locking |
35A |
Open a |
35B |
The |
36 |
The fixing face of instrument (or sled point) | 36A、 |
Instrument is opened sled face (or sled point) | 36B |
Manually opened |
36C |
Open the |
36D |
Open back and collude | |
Lower seat | |
39 | |
Instrument is opened a face (or sled point) | 39A |
The |
49 |
|
59 |
|
7A、7B、 |
Friction pad | |
201 | |
|
72 |
|
74 |
Two |
76 |
|
78 |
|
77 |
Open the |
75 |
|
71 |
The locking |
73 |
Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (17)
1. the self-locking device with continuous locked position is characterized in that, comprising:
Pedestal with cavity, the sidewall of this cavity comprise the first frictional contact surface and the 4th frictional contact surface;
Latching member, it has the second frictional contact surface and the 3rd frictional contact surface, described latching member is arranged at least part ofly be positioned at described cavity, so that described the second frictional contact surface is towards described the first frictional contact surface, described the 3rd frictional contact surface is towards described the 4th frictional contact surface; And
The first lock dog and the second lock dog, described the first lock dog is arranged between the second frictional contact surface of described the first frictional contact surface and described latching member and with described the first frictional contact surface and contacts with described the second frictional contact surface, the second lock dog is arranged between the 3rd frictional contact surface of described latching member and described the 4th frictional contact surface and with described the 3rd frictional contact surface and contacts with described the 4th frictional contact surface
Wherein, described the first lock dog and the second lock dog are constructed such that described latching member is movable along first direction with respect to described self-locking pedestal, and on the second direction opposite with described first direction by locking, thereby so that described latching member can be locked in arbitrarily described continuous locked position.
2. self-locking device according to claim 1, it is characterized in that, angle between described the first frictional contact surface and described the second frictional contact surface is α, angle between described the 4th frictional contact surface and described the 3rd frictional contact surface is α ', and described the first lock dog is respectively with respect to the friction angle of described the first frictional contact surface and described the second frictional contact surface
With
Described the second lock dog is respectively with respect to the friction angle of described the 3rd frictional contact surface and described the 4th frictional contact surface
With
Wherein,
And
3. self-locking device according to claim 2 is characterized in that, 0<α≤17 °, and/or 0<α '≤17 °.
4. according to claim 1,2 or 3 described self-locking devices, it is characterized in that, described the first frictional contact surface and the 4th frictional contact surface are symmetrical arranged with respect to the longitudinal axis of described pedestal, described the second frictional contact surface and the 3rd frictional contact surface are symmetrical arranged with respect to the longitudinal axis of described latching member, so that α=α '.
5. according to claim 1,2 or 3 described self-locking devices, it is characterized in that, described self-locking device also comprises holding member, described holding member is used for applying active force to described the first lock dog and the second lock dog, so that when described latching member was locked in described locked position, described the first lock dog keeps contacting with described the first frictional contact surface and the second frictional contact surface and described the second lock dog keeps contacting with described the 3rd frictional contact surface and the 4th frictional contact surface.
6. self-locking device according to claim 5, it is characterized in that, described holding member comprises spring and extends through the lock dog cover of described cavity, described latching member extends through described lock dog cover, the sidewall of described lock dog cover has and is suitable for holding the first hole of described the first lock dog and the second hole that holds described the second lock dog
One end of described lock dog cover has flange, and it is outside that described spring is arranged on described pedestal, between the flange that the outer surface that is resisted against described pedestal and described lock dog overlap, described lock dog cover is applied elastic force.
7. self-locking device according to claim 5, it is characterized in that, described holding member comprises two springs and extends through the lock dog cover of described cavity, described latching member extends through described lock dog cover, the sidewall of described lock dog cover has and is suitable for holding the first hole of described the first lock dog and the second hole that holds described the second lock dog
Described two springs are arranged in the described cavity, respectively described the first lock dog and described the second lock dog are applied elastic force.
8. according to claim 1,2 or 3 described self-locking devices, it is characterized in that, also comprise:
Upper clamping frame, an end of described upper clamping frame are fixedly connected with described pedestal or are integrally formed with described pedestal;
Lower clamping frame, an end of described lower clamping frame is flexibly connected with an end relative with described pedestal of described upper clamping frame,
Wherein, described latching member extends through the cavity of described pedestal, when described latching member was positioned at described locked position, an end of described latching member and the other end of described lower clamping frame kept fastening, thereby described upper clamping frame and described lower clamping frame are tightened together.
9. according to claim 1,2 or 3 described self-locking devices, it is characterized in that, also comprise:
Upper clamping frame, an end of described upper clamping frame are fixedly connected with described pedestal or are integrally formed with described pedestal;
Lower clamping frame, an end of described lower clamping frame is flexibly connected with an end relative with described pedestal of described upper clamping frame;
Clasp, one end of described clasp detachably is connected with described latching member, the other end of described clasp detachably is connected with the other end of described lower clamping frame, when described latching member was positioned at described locked position, described upper clamping frame and described lower clamping frame tightened together by described clasp.
10. self-locking device according to claim 9 is characterized in that,
Described self-locking device also comprises the first torsion spring, one end of described the first torsion spring is arranged on the described pedestal, the other end of described the first torsion spring is arranged on the described latching member, and the active force of described the first torsion spring makes described latching member be positioned at the enable possition of described self-locking device; And/or,
Described self-locking device also comprises the second torsion spring, one end of described the second torsion spring is used for being connected and fixed described clasp and described lower clamping frame, the other end of described the second torsion spring is arranged on the described clasp, described the second torsion spring produces an active force, and this active force makes described clasp be positioned at the link position of described latching member and described clasp.
11. according to claim 1,2 or 3 described self-locking devices, it is characterized in that described pedestal, latching member, the first lock dog and the second lock dog are made of steel.
12. the self-locking device with continuous locked position is characterized in that, comprising:
Pedestal with cavity, the sidewall of this cavity comprises the first frictional contact surface;
Latching member, it has the second frictional contact surface, and described latching member is arranged at least part ofly be positioned at described cavity, so that described the second frictional contact surface is towards described the first frictional contact surface;
Lock dog, described lock dog are arranged between the second frictional contact surface of described the first frictional contact surface and described latching member and with described the first frictional contact surface and contact with described the second frictional contact surface;
Wherein, described lock dog is constructed such that described latching member is movable along first direction with respect to described self-locking pedestal, and on the second direction opposite with described first direction by locking, thereby so that described latching member can be locked in arbitrarily described continuous locked position.
13. self-locking device according to claim 12 is characterized in that, the angle between described the first frictional contact surface and described the second frictional contact surface is α, and described lock dog with respect to the friction angle of described the first frictional contact surface is
Friction angle with respect to described the second frictional contact surface is
Wherein,
14. self-locking device according to claim 13 is characterized in that, 0<α≤17 °.
15. according to claim 12 or 13 described self-locking devices, it is characterized in that, described self-locking device also comprises holding member, described holding member is used for applying active force to described lock dog, so that described latching member is when being locked in described locked position, described lock dog keeps contacting with described the first frictional contact surface and the second frictional contact surface.
16. according to claim 12,13 or 14 described self-locking devices, it is characterized in that described pedestal, latching member and lock dog are made of steel.
17. lock and tripper for one kind, be used for locking and each described self-locking device of the aforementioned claim of release, it is characterized in that, by described locking and tripper described self-locking device is applied active force, thereby so that the locking of described self-locking device and release, described locking and tripper are long strip, and the one end is opening end, are used for the opened self-locking device; And the other end is the locking end, is used for the locking self-locking device; Wherein, be provided with side by side two crotches at opening end, be used for catching on the described pedestal standing part so that described locking and tripper about this standing part rotation; Between these two crotches, be provided with two projections, be used for pressing down when rotated lock dog; This locking end has recess;
Perhaps, described locking and tripper are long strip, and two ends respectively have a pair of pawl, and wherein the interval between a pair of pawl is different from another to the interval between the pawl;
Perhaps, described locking and tripper are long strip, and the one end has two pairs of arc pawls, and these two pairs of arc pawls are relative in twos, consist of notched circular, and wherein the interval between a pair of arc pawl is different from another to the interval between the arc pawl.
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CN 201220001399 CN202811681U (en) | 2011-01-06 | 2012-01-04 | Self locking device and locking and unlocking device thereof |
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CN201120017247.6 | 2011-01-06 | ||
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CN2011101434165A Pending CN102588399A (en) | 2011-01-06 | 2011-05-31 | Clamp device and mounting and dismounting device for clamp device |
CN2011201786954U Expired - Lifetime CN202326550U (en) | 2011-01-06 | 2011-05-31 | Fastening device and device for assembling and disassembling fastening device |
CN201110143418.4A Expired - Fee Related CN102582378B (en) | 2011-01-06 | 2011-05-31 | Tire, tire are installed and disassembling system |
CN2011201787105U Expired - Lifetime CN202463485U (en) | 2011-01-06 | 2011-05-31 | Tire and tire assembling and disassembling system |
CN 201220001399 Expired - Lifetime CN202811681U (en) | 2011-01-06 | 2012-01-04 | Self locking device and locking and unlocking device thereof |
CN 201220001331 Expired - Lifetime CN202847348U (en) | 2011-01-06 | 2012-01-04 | Auxiliary wheel, and locking tool and unlocking tool used in matching |
CN201210001026.9A Expired - Fee Related CN102518626B (en) | 2011-01-06 | 2012-01-04 | Self-locking device and locking/unlocking device |
CN201210000700.1A Expired - Fee Related CN102423995B (en) | 2011-01-06 | 2012-01-04 | Auxiliary wheel and locking and unlocking tool matched with same |
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CN2011201786954U Expired - Lifetime CN202326550U (en) | 2011-01-06 | 2011-05-31 | Fastening device and device for assembling and disassembling fastening device |
CN201110143418.4A Expired - Fee Related CN102582378B (en) | 2011-01-06 | 2011-05-31 | Tire, tire are installed and disassembling system |
CN2011201787105U Expired - Lifetime CN202463485U (en) | 2011-01-06 | 2011-05-31 | Tire and tire assembling and disassembling system |
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CN201210001026.9A Expired - Fee Related CN102518626B (en) | 2011-01-06 | 2012-01-04 | Self-locking device and locking/unlocking device |
CN201210000700.1A Expired - Fee Related CN102423995B (en) | 2011-01-06 | 2012-01-04 | Auxiliary wheel and locking and unlocking tool matched with same |
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CN102588399A (en) * | 2011-01-06 | 2012-07-18 | 周立新 | Clamp device and mounting and dismounting device for clamp device |
-
2011
- 2011-05-31 CN CN2011101434165A patent/CN102588399A/en active Pending
- 2011-05-31 CN CN2011201786954U patent/CN202326550U/en not_active Expired - Lifetime
- 2011-05-31 CN CN201110143418.4A patent/CN102582378B/en not_active Expired - Fee Related
- 2011-05-31 CN CN2011201787105U patent/CN202463485U/en not_active Expired - Lifetime
-
2012
- 2012-01-04 CN CN 201220001399 patent/CN202811681U/en not_active Expired - Lifetime
- 2012-01-04 CN CN 201220001331 patent/CN202847348U/en not_active Expired - Lifetime
- 2012-01-04 CN CN201210001026.9A patent/CN102518626B/en not_active Expired - Fee Related
- 2012-01-04 CN CN201210000700.1A patent/CN102423995B/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102518626A (en) * | 2011-01-06 | 2012-06-27 | 周立新 | Self-locking device and locking/unlocking device |
CN102518626B (en) * | 2011-01-06 | 2014-04-23 | 周立新 | Self-locking device and locking/unlocking device |
EP2614988A3 (en) * | 2012-01-11 | 2015-05-27 | HAPPICH GmbH | Fastening element |
Also Published As
Publication number | Publication date |
---|---|
CN102582378B (en) | 2017-03-15 |
CN102518626B (en) | 2014-04-23 |
CN202463485U (en) | 2012-10-03 |
CN102518626A (en) | 2012-06-27 |
CN202847348U (en) | 2013-04-03 |
CN202326550U (en) | 2012-07-11 |
CN102423995B (en) | 2014-01-15 |
CN102582378A (en) | 2012-07-18 |
CN102423995A (en) | 2012-04-25 |
CN102588399A (en) | 2012-07-18 |
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Granted publication date: 20130320 Effective date of abandoning: 20140423 |
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