CN102155117B

CN102155117B - Improved rotation tensioning lock

Info

Publication number: CN102155117B
Application number: CN2011100675802A
Authority: CN
Inventors: 裘钟; 王金平; 阙建章
Original assignee: SUZHOU DESHINAI HARDWARE TECHNOLOGY CO LTD
Current assignee: SUZHOU DESHINAI HARDWARE TECHNOLOGY CO LTD
Priority date: 2011-03-21
Filing date: 2011-03-21
Publication date: 2012-11-07
Anticipated expiration: 2031-03-21
Also published as: CN102155117A

Abstract

The invention discloses an improved rotation tensioning lock. The lock comprises a lock shell, a lock core, and a rotation tongue, and is characterized in that: a sleeve is arranged at one end of the lock core; a spiral groove is formed on the wall of the sleeve, a lock rod is inserted into the sleeve, and a first shaft pin is arranged on the lock rod and is extended into the spiral groove to form first guide matching; and an L-shaped groove which is formed by communicating a circumferential groove and an axial groove is formed on the inner wall of the lock shell, a second shaft pin is arranged on the lock rod corresponding to the L-shaped groove and is extended into the L-shaped groove to form second guide matching. Under the combined action of two kinds of guide matching, a first section of rotation angle realizes rotation tongue locking and a second section of rotation angle realizes rotation tongue tensioning in the process of forward rotation and locking; and the first section of rotation angle realizes rotation tongue loosening and the second section of rotation angle realizes rotation tongue unlocking in the process of contrarotation unlocking. The improved rotation tensioning lock simplifies structural design and the smoothness and the reliability of lock movement are improved.

Description

A kind of modified revolution Strain lock

Technical field

The present invention relates to lockset, the industrial revolution Strain lock of industries such as particularly track traffic, wind-power electricity generation, communication apparatus.The commentaries on classics tongue of this lockset not only has lock function and has the tension function simultaneously, can be applicable to a body, forms and cabinet etc.

Background technology

On the vehicle or equipment of industries such as track traffic, wind-power electricity generation, communication apparatus, use industrial lockset to come lock door body or forms in a large number.Chinese patent CN2549104Y discloses the utility model patent that a kind of name is called " the collapsible door lock of dead bolt ".This patent door lock is made up of parts such as lock shell, outer bush, interior guide pin bushing, lock core, rotating shaft, pin, dead bolts, is provided with the guiding mechanism of a cover spiral in the lock shell, and this guiding mechanism is worn to close through pin by outer bush, interior guide pin bushing, rotating shaft and formed.This lockset designs to closing a cabinet, and wherein, dead bolt (commentaries on classics tongue) has locking and tension dual-use function, but the shortcoming that exists is: 1. guide pin bushing, outer bush dual structure in, and part is many, and complex structure causes cost of production to increase; 2. in assembly structure, high to position accuracy demand, motion smoothness and reliability after being difficult to guarantee to assemble.For this reason, the present invention improves this door lock from the angle of simplified structure, assurance motion smoothness and reliability, to overcome above-mentioned defective.

Summary of the invention

The present invention provides a kind of modified revolution Strain lock, its objective is performances such as wanting simplified structure design, the motion smoothness of raising product and reliability.

For achieving the above object, the technical scheme that the present invention adopts is: a kind of modified revolution Strain lock comprises lock shell, lock core, commentaries on classics tongue; Wherein, have a pilot hole on the lock shell, lock core is positioned at this pilot hole; Lock core is provided with the on-off action portion that cooperates with key towards the positive end of lock shell, and its innovation is: lock core is provided with a sleeve towards an end at the lock shell back side, and the barrel of this sleeve is provided with helicla flute; There is a locking bar to be positioned at the pilot hole of lock shell; This locking bar is inserted in the said sleeve towards the positive end of lock shell, is inserted on one section locking bar in the sleeve and radially is provided with first bearing pin, and this first bearing pin stretches into helicla flute and forms the first guiding cooperation; The inwall of said pilot hole is provided with " L " shape groove; This " L " shape groove is connected by circumferential slot and these two sections grooves of axial groove and constitutes; Wherein, it is circumferential that circumferential slot is arranged in pilot hole, and it is axial that axial groove is arranged in pilot hole; Corresponding " L " shape groove position radially is provided with second bearing pin on locking bar, this second bearing pin stretches into " L " shape groove and forms the second guiding cooperation; Locking bar stretches out from said pilot hole towards an end at the lock shell back side, and is fixedly connected with the commentaries on classics tongue.

The present invention interacts through first bearing pin and helicla flute between lock core and locking bar and forms first guiding and cooperates, between lock shell and locking bar, leads and cooperates through the formation second that interacts of second bearing pin and " L " shape groove simultaneously.Owing to the acting in conjunction that first guiding cooperates and second guiding cooperates, in locking process, when key passes through on-off action portion forward rotation lock core; Two sections corner strokes are arranged; Wherein, first section corner is used for realizing that turning-bolt lock is fixed, and second section corner is used for realizing changeing tongue and strains; In the process of unblanking, when key passes through on-off action portion backward rotation lock core, two sections corner strokes are arranged also, wherein, first section corner is used for realizing changeing tongue to be loosened, and second section corner is used for realizing the release of commentaries on classics tongue.The present invention compared with prior art on the basis that keeps original locking and tension function, has omitted a guide pin bushing, simplifies the structure, and has reduced cost, helps applying of market.In addition; The present invention cooperates first guiding and second guiding cooperates these two kinds of different mechanisms to be combined in dexterously between lock shell, lock core and the locking bar three; And organically combine with the rotation of changeing tongue and tension, thereby improved the smoothness and the reliability of lockset motion.Therefore have outstanding substantive distinguishing features and significant technological progress.

Description of drawings

Accompanying drawing 1 is an embodiment of the invention stereogram;

Accompanying drawing 2 is an embodiment of the invention three-dimensional exploded view;

Accompanying drawing 3 is embodiment of the invention lock shell front view;

Accompanying drawing 4 is the A-A sectional view of Fig. 3;

Accompanying drawing 5 is embodiment of the invention lock shell cut-away view;

Accompanying drawing 6 is an embodiment of the invention lock core stereogram;

Accompanying drawing 7 is an embodiment of the invention user mode reference diagram ();

Accompanying drawing 8 is an embodiment of the invention user mode reference diagram (two);

Accompanying drawing 9A ~ 9C is respectively the various views of embodiment of the invention revolution Strain lock when being in unlocking condition;

Accompanying drawing 10A ~ 10C is respectively embodiment of the invention revolution Strain lock and is in the various views when locking relaxation state;

Accompanying drawing 11A ~ 11C is respectively embodiment of the invention revolution Strain lock and is in the various views when locking tension

Accompanying drawing 12 concerns sketch map for helicla flute of the present invention and " L " shape groove.

In the above accompanying drawing: 1. nut; 2. packing ring; 3. commentaries on classics tongue; 4. packing ring; 5. nut; 6. locking bar; 7. second bearing pin; 8. nut; 9. toothed pad; 10. packing ring; 11. lock shell; 12. spring; 13. first bearing pin; 14. lock core; 15. snap ring; 16. sealing ring; 17. second pin-and-hole; 18. first pin-and-hole; 19. pilot hole; " 20. L " shape groove; 21. helicla flute; 22. snap ring water jacket; 23. snap ring inside groove; 24. seal groove; 25. square termination; 26. door body; 27. doorframe; 28. helicla flute start position; 29. helicla flute final position; 30.L " shape groove start position; 31.L " shape groove final position.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is further described:

Embodiment: a kind of modified revolution Strain lock

Like Fig. 1, shown in Figure 2, this lockset comprises lock shell 11, lock core 14, locking bar 6 and commentaries on classics tongue 3, wherein; The main body of lock shell 11 is cylindric; Cylindrical center has a pilot hole 19 (seeing Fig. 4 and Fig. 5), and the outer rim of cylinder is provided with external screw thread, and an externally threaded end is provided with the shaft shoulder; This external screw thread cooperates with nut 8, and the end face of nut 8 cooperates with the shaft shoulder of cylinder one end through toothed pad 9, packing ring 10 and is used for lock shell 11 is installed in (see figure 7) on the body 26.Under confined state; Lock core 14 is positioned at the pilot hole 19 of lock shell 11; Lock core 14 is provided with the on-off action portion that cooperates with key towards lock shell 11 positive ends, and this on-off action portion is that Fig. 6 (is seen, i.e. square in square termination 25; Can triangle be or two thread form that this can decide according to actual needs also).Lock core 14 is provided with a sleeve towards an end at lock shell 11 back sides; The barrel of this sleeve is provided with a pair of helicla flute 21 (see Fig. 6, there is a helicla flute in the front, and there is a helicla flute at the back side); Under confined state; Locking bar 6 is positioned at the pilot hole 19 of lock shell 11, and this locking bar 6 is inserted in the sleeve of lock core 14 towards lock shell 11 positive ends, radially is provided with first pin-and-hole, 18 (see figure 2)s on this of plug-in mounting section locking bar 6; First bearing pin, 13 (see figure 2)s are housed in first pin-and-hole 18, and this first bearing pin 13 stretches into helicla flute 21 and forms the first guiding cooperation.The inwall of said pilot hole 19 is provided with a pair of " L " shape groove 20 and (sees Fig. 4 and Fig. 5; Can find out it is aspectant two " L " shape grooves 20 among Fig. 4); This " L " shape groove 20 is connected by circumferential slot and these two sections grooves of axial groove and constitutes (see figure 5); Wherein, it is circumferential that circumferential slot is arranged in pilot hole 19, and it is axial that axial groove is arranged in pilot hole 19.Under confined state, corresponding " L " shape groove 20 positions radially are provided with second pin-and-hole, 17 (see figure 2)s on locking bar 6, second bearing pin 7 is housed in second pin-and-hole 17, and this second bearing pin 7 stretches into " L " shape groove 20 and forms the second guiding cooperation.Do axially-movable in order to cooperate locking bar 6 relative lock cores 14; Realize straining or loosening, between lock core 14 and locking bar 6, be provided with the spring 12 of axial action, this spring 12 is sleeved on the locking bar 6; One end of spring 12 acts on the sleeve end face of lock core 14, and the other end acts on second bearing pin 7.Locking bar 6 stretches out from said pilot hole 19 towards an end at lock shell 11 back sides, and is fixedly connected with changeing tongue 3, and concrete implementation is: adopt nut 1 and packing ring 2 and nut 5 and packing ring 4 will change tongue 3 and be clamped on lock shell 11 external parts.In the pilot hole 19 of lock shell 11, realize axial location in order to make lock core 14; Sleeve outer rim at lock core 14 is circumferentially with snap ring inside groove 23 (see figure 6)s; To being circumferentially with snap ring water jacket 22 (see figure 5)s at pilot hole 19 inner edges of lock shell 11 in snap ring inside groove 23 positions; There are a snap ring 15 (see figure 2)s to be located between snap ring inside groove 23 and the snap ring water jacket 22, lock core 14 locked shell 11 relatively in axial location with this.Realize sealing relatively in order to make between lock core 14 and the lock shell 11; Sleeve outer rim at lock core 14 is circumferentially with seal groove 24 (see figure 6)s; Be embedded with sealing ring 16 (see figure 2)s in the seal groove 24, sealing circle 16 forms hermetically-sealed construction between pilot hole 19 inner edges of the sleeve outer rim of lock core 14 and lock shell 11.

Describe in the face of the course of work of present embodiment down:

Fig. 7 and Fig. 8 are embodiment of the invention user mode reference diagram, and wherein, Fig. 7 representes that the present invention turns round Strain lock and is installed in the situation between a body 26 and the doorframe 27, change tongue 3 and under lock-out state, have axial tension action.Fig. 8 represent commentaries on classics tongue 3 that the present invention turns round Strain lock at locking and lockset position of coupler for rotating 90 ° state.Certainly the rotational angle that changes tongue 3 can confirm according to concrete needs, 90 ° of optimum states just, greater than 90 ° or less than 90 ° also can, as long as between door body 26 and doorframe 27, can realize locking and unblank.

Fig. 9 A ~ 9C is respectively the various views of embodiment of the invention revolution Strain lock when being in unlocking condition, and wherein, Fig. 9 A is illustrated in the orientation of square termination 25 under the unlocking condition, with representing in the triangle arrow court; Fig. 9 B and Fig. 9 C are illustrated in first bearing pin, 13 relative helicla flutes 21 and second bearing pin, 7 relative " L " shape grooves, 20 residing positions under the unlocking condition; Promptly from Fig. 9 B, can find out under unlocking condition; First bearing pin 13 is positioned at the minimum point of helicla flute 21; The rotation direction of this helicla flute 21 is dextrorotation (meeting the right-handed helix regulation), can see from Fig. 9 C that under unlocking condition second bearing pin 7 is arranged in circumferential slot one end (other end is the turning end) of " L " shape groove 20.

In closing the lock process; When key insertion square termination 25 clockwise rotates lock core 14, two sections corner strokes are arranged, first section corner stroke is 0 ° ~ 90 °; Second section corner stroke is 90 ° ~ 180 °; Wherein, first section corner stroke will change tongue 3 and change lock-out state into from open mode, and second section corner stroke will change tongue 3 and change tension into from relaxation state.

Respectively two sections corner strokes are described below:

1. first section corner stroke

Figure 10 A ~ 10C is respectively embodiment of the invention revolution Strain lock and is in the various views when locking relaxation state.Can find out from the contrast of Figure 10 A and Fig. 9 A, square termination 25 intermediate cam arrows clockwise rotate 90 ° of positions (from forwarding to) up from 0 ° towards right.Can find out that from the contrast of Figure 10 B and Fig. 9 B the position of first bearing pin, 13 relative helicla flutes 21 does not change, promptly first bearing pin 13 still is positioned at the minimum point of helicla flute 21.Can find out from the contrast of Figure 10 C and Fig. 9 C, second bearing pin 7 from circumferential slot one end motion that was arranged in " L " shape groove 20 originally to the circumferential slot other end (turning end).

In first section corner stroke; Because the resistance of first bearing pin, 13 relative helicla flute 21 motions is greater than the resistance of motion of the circumferential slot of second bearing pin, 7 relative " L " shape grooves 20; When lock core 14 clockwise rotates, drive locking bar 6 and rotate, change tongue 3 and forward lock-out state to from open mode thereby drive.

2. second section corner stroke

Figure 11 A ~ 11C is respectively embodiment of the invention revolution Strain lock and is in the various views when locking tension.Can find out from the contrast of Figure 11 A and Figure 10 A, square termination 25 intermediate cam arrows clockwise rotate 180 ° of positions (from bearing right down) from 90 °.Can find out that from the contrast of Figure 11 B and Figure 10 B first bearing pin 13 moves to the peak of helicla flute 21 from the minimum point that was positioned at helicla flute 21 originally.Can find out that from the contrast of Figure 11 C and Figure 10 C second bearing pin 7 moves to axial groove one end (other end of axial groove is the turning end) from the circumferential slot other end (turning end) that was arranged in " L " shape groove 20 originally.

In second section corner stroke; Because after second bearing pin 7 moves to the turning end of circumferential slot; Limited the circumferential movement of second bearing pin 7, promptly limited the rotation that locking bar 6 is followed lock core 14, first bearing pin 13 moves to the peak of helicla flute 21 from the minimum point of helicla flute 21 when lock core 14 is rotated further; Simultaneously second bearing pin 7 from the turning end of circumferential slot vertically groove do axially-movable, move to tension thereby will change tongue 3 from relaxation state.

The process of unblanking and above-mentioned pass lock process is just in time opposite, and key is inserted square termination 25 when rotating counterclockwise lock core 14, and two sections corner strokes are arranged; First section corner stroke is to get back to 90 ° of positions from 180 ° of positions; Because second bearing pin 7 is arranged in axial groove, locking bar 6 can not rotate, and first bearing pin 13 moves to minimum point from the peak of helicla flute 21 when lock core 14 rotates counterclockwise; Simultaneously second bearing pin 7 vertically groove move to the turning end, change open mode thereby will change tongue 3 into from lock-out state.Second section corner stroke is to get back to 0 ° from 90 ° of positions; Because first bearing pin 13 is obstructed after moving to the minimum point of helicla flute 21; When being rotated further lock core 14, drive locking bar 6 and rotate counterclockwise, this moment second, bearing pin 7 moved along circumferential slot, will change tongue 3 and forward open mode to from lock-out state.

The rotation direction of helicla flute 21 is dextrorotation in the present embodiment, also is feasible but change into the rotation direction of helicla flute 21 left-handed, and difference is just unblanked and the rotation direction of closing lock will be exchanged, and promptly closes lock for counterclockwise rotating, and unblanking is that clockwise direction rotates.In addition; " L " shape groove 20 constitutes and can make up with dextrorotation or left-handed helicla flute 21 as long as be connected by one section circumferential slot and one section axial groove; Noticeable just: referring to shown in Figure 12; The start position 28 that first bearing pin 13 moves in helicla flute 21 position 29 of breasting the tape need be consistent with the breast the tape direction of position 31 of the start position 30 that second bearing pin 7 moves in " L " shape groove 20, can interfere at the volley otherwise understand both.This point is understandable after having read manual of the present invention to those skilled in the art.

The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims

1. a modified turns round Strain lock; Comprise lock shell (11), lock core (14), change tongue (3), wherein, have a pilot hole (19) on the lock shell (11); Lock core (14) is positioned at this pilot hole (19); Lock core (14) is provided with the on-off action portion that cooperates with key towards the positive end of lock shell (11), it is characterized in that: lock core (14) is provided with a sleeve towards an end at lock shell (11) back side, and the barrel of this sleeve is provided with helicla flute (21); There is a locking bar (6) to be positioned at the pilot hole (19) of lock shell (11); This locking bar (6) is inserted in the said sleeve towards the positive end of lock shell (11), is inserted on the one section locking bar (6) in the sleeve and radially is provided with first bearing pin (13), and this first bearing pin (13) stretches into helicla flute (21) and forms the first guiding cooperation; The inwall of said pilot hole (19) is provided with " L " shape groove (20); This " L " shape groove (20) is connected by circumferential slot and these two sections grooves of axial groove and constitutes; Wherein, it is circumferential that circumferential slot is arranged in pilot hole (19), and it is axial that axial groove is arranged in pilot hole (19); Corresponding " L " shape groove (20) position radially is provided with second bearing pin (7) on locking bar (6), this second bearing pin (7) stretches into " L " shape groove (20) and forms the second guiding cooperation; Locking bar (6) stretches out from said pilot hole (19) towards an end at lock shell (11) back side, and is fixedly connected with commentaries on classics tongue (3).

2. modified revolution Strain lock according to claim 1; It is characterized in that: the spring (12) that is provided with axial action between said lock core (14) and the locking bar (6); This spring (12) is sleeved on the locking bar (6); One end of spring (12) acts on the sleeve end face of lock core (14), and the other end acts on second bearing pin (7).

3. modified revolution Strain lock according to claim 1; It is characterized in that: the sleeve outer rim of said lock core (14) is circumferentially with snap ring inside groove (23); To being circumferentially with snap ring water jacket (22) at pilot hole (19) inner edge of lock shell (11) in snap ring inside groove (23) position; There is a snap ring (15) to be located between said snap ring inside groove (23) and the snap ring water jacket (22), lock core (14) locked shell (11) relatively in axial location with this.

4. modified revolution Strain lock according to claim 1; It is characterized in that: the sleeve outer rim of said lock core (14) is circumferentially with seal groove (24); Be embedded with sealing ring (16) in the seal groove (24), sealing circle (16) forms hermetically-sealed construction between pilot hole (19) inner edge of the sleeve outer rim of lock core (14) and lock shell (11).