CN1307166A

CN1307166A - Blade lock

Info

Publication number: CN1307166A
Application number: CN 00100444
Authority: CN
Inventors: 李明
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-01
Filing date: 2000-02-01
Publication date: 2001-08-08

Abstract

The blade lock includes lock body, lock core, blade, etc. and features the blade capable of rotating around the lock core axis and with two kinds of notches in different depth in its edge, radial locking pin between the lock body and lock core, key hole with radial lug and key with guide slot corresponding to the lug. The lock has also blade resetting device. Only when the key is inserted and each of the blade rotates a specific angle to make the pin fall into the notch owing to the interaction between the lug and the guide slot, the blade lock will be opened.

Description

A kind of blade lock

The present invention relates to a kind of lock, specifically relate to a kind of blade lock.

Existing blade lock comprises lock body, lock core, blade, blade keyhole, blade lock slots, leaf spring and key etc.Under lock-out state, by leaf spring blade is pushed up in the blade lock slots in the lock body, can not relatively move between lock body and the lock core, the blade lock is locked; When opening, key is inserted the blade keyhole, the interface place that tartar on the key all pushes up lock body and lock core with the blade of correspondence, twisting or promotion lock core, the blade lock promptly is unlocked.

Existing blade lock is inserted with foreign matter easily, stirs blade, records blade and opens in the method for lock core relative position radially, so existing blade is latched in the shortcoming of above-mentioned measurability, safety is relatively poor.

According to the above-mentioned shortcoming that exists in the prior art, the invention provides a kind of blade lock, its purpose is: prevent to insert with foreign matter, stir the method unlatching blade lock that blade records the position of blade in lock, overcome the measurability of blade lock, improve the safety of blade lock.

The objective of the invention is by providing a kind of blade lock to realize with following structure, this blade lock comprises: lock body, lock core, blade, blade keyhole and key, it is characterized in that: lock core shaft is to having a lock core hole, described blade is a plurality of, be encapsulated in and be word row example in the lock core hole, this blade and described lock core hole circumferentially are slidingly matched, has the circumferential resetting means of blade between described lock core hole and the blade, the breach that extends is vertically arranged between lock core outer rim and the lock core hole, the lock body cavity wall has the groove that extends vertically corresponding to described lock core indentation, there, the hitching post of one loose fit is housed between this groove and the described lock core breach, has the pellet shot from a slingshot hole that radially communicates on the lock body with described groove, in this pellet shot from a slingshot hole pellet shot from a slingshot is housed, this pellet shot from a slingshot has a marble spring towards the end top of lock body, the other end of this pellet shot from a slingshot withstands on the outer rim of described hitching post, have on the described blade outer rim for arc dark short slot and the arc shallow short slot of described hitching post from radially embedding, the degree of depth of described dark short slot 〉=described hitching post embeds the degree of depth of lock body groove, the degree of depth of described shallow short slot＜described hitching post embeds the degree of depth of lock body groove, described blade keyhole inwall has the protuberance that radially extends internally, described key cross section is roughly rounded, has gathering sill on this key outer rim corresponding to described blade protuberance, have the key guide slot parallel on the described key outer rim, the directed tooth of the key that described lock core hole tool on key upstream end hole wall is corresponding with described key guide slot with axis.

The circumferential resetting means of described blade by along the blade outer circumference to one section fan-shaped short slot of ring type, be installed on the lock core, steel ball that radially extend into hollow pin in the fan-shaped short slot of described ring type, is encapsulated in spring in the described column pin hole, is slidingly matched with this column pin hole along lock core hole and the V-shaped groove that is arranged in the fan-shaped short slot of ring type on the described blade outer rim constitute, the spring force of described spring acts on the steel ball, and the summit of this steel ball is maintained in the described V-shaped groove under the long qualification of the orphan of the fan-shaped short slot of described ring type all the time.

The circumferential resetting means of described blade can also be by be positioned at the peripheral groove of vane end faces by the axial lateral surface of described annular boss along an annular boss on the vane end faces, annular end cap with the stationary fit of described annular boss external diameter, be encapsulated in the spring in the peripheral groove, withstand on a pair of T shape slide block of both ends of the spring and be located at lock core upper edge lock core hole radially inside, the pin that extends between the described a pair of T shape slide block constitutes, the end face of described annular end cap is in the ring type sector notch that has two symmetries corresponding to described peripheral groove place, the width of this ring type sector notch is less than the width of described peripheral groove, the part of described T shape slide block from the ring type sector notch of described annular end cap along sharf to stretching out, another part is maintained in the described peripheral groove, and this T shape slide block can slide around axis of runner blade along this ring type sector notch.

Described key is that the gathering sill on the outer rim is that by the key front end one section is parallel to the straight trough of key axis and connects and composes with one section helicla flute slyness towards the key pommel.

A kind of blade lock of the present invention is phase-locked than having following advantage with the blade of prior art: have two kinds of the depths on the blade outer rim and supply the short slot of hitching post from radially embedding, have only that the blade lock just can be unlocked when all dark short slots are in the position of corresponding pin simultaneously, this makes foreign matter insert the place, definite position that the blade keyhole can not surveyed dark short slot, so the present invention has overcome the measurability of existing blade lock; The blade of blade lock of the present invention is word order vertically in lock core hole, each blade pass is crossed the different angle of rotation and is reached same enable possition, this structure makes stirs each blade with foreign matter respectively from the insertion of blade keyhole, make it be difficult to realize, so the present invention has improved the safety of blade lock to the attempt that different directions rotates special angle unlatching blade lock.

With two embodiments the present invention is described in further detail below with reference to accompanying drawings.

Fig. 1 is the structure sectional view that a kind of blade of the present invention is locked first embodiment (the blade lock is positioned under the opening);

Fig. 2 is that the A-A of Fig. 1 is to view;

Fig. 3 is that a kind of blade shown in Figure 1 is locked in the structure sectional view under the lock-out state;

Fig. 4 is that the B-B of Fig. 3 is to view;

Fig. 5 is the sectional view of another tool embodiment (blade is locked under the lock-out state) of a kind of blade lock of the present invention;

Fig. 6 is that the C-C of Fig. 5 is to view.

In Fig. 1, blade lock of the present invention comprises lock body 1, lock core 2, axially has a lock core hole 6 at lock core 2, a plurality of blade 3 these blades 3 along lock core hole 6 axial word orders are housed in this lock core hole 6 circumferentially to be slidingly matched with described lock core hole 6, has a circumferential resetting means of blade between described lock core hole 6 and the blade 3, this device circumferentially resets blade 3, Fig. 1 to Fig. 6 illustrates the breach 8 that extends vertically between the outer rim of lock core 2 of the present invention and the lock core hole 6, lock body 1 cavity wall has a groove 9 that extends vertically corresponding to described lock core 2 breach 8 places, the hitching post 10 of one loose fit is housed between this groove 9 and the described breach 8, has the pellet shot from a slingshot hole 11 that radially communicates on the lock body 1 with described groove 9, in this pellet shot from a slingshot hole 11 pellet shot from a slingshot 12 is housed, this pellet shot from a slingshot 12 has a marble spring 13 towards the end top of lock body 1, these pellet shot from a slingshot 12 other ends withstand on the outer rim of described hitching post 10, Fig. 2,4,6 illustrate and have on described blade 3 outer rims for described hitching post 10 from radially to arc dark short slot 14 that is embedded in and arc shallow short slot 15, for guaranteeing the smooth unlatching of blade lock, the degree of depth of described dark short slot 14 should 〉=described hitching post 10 embeds the degree of depth of lock bodies 1 groove 9, the degree of depth of shallow short slot 15 then should＜this hitching post embeds the degree of depth of this groove 9, so not only overcome the measurability of blade lock but also guaranteed that this blade is locked and can not be unlocked when the position of the position of described shallow short slot 15 and described hitching post 10 matches.Fig. 1 illustrates blade keyhole 4 inwalls to Fig. 6 the protuberance 16 that radially extends internally, it is roughly rounded that Fig. 2 illustrates the key cross section, Fig. 1 illustrates the gathering sill 17 that has on this key outer rim corresponding to described blade 3 protuberances 16, in Fig. 1, this gathering sill 17 is that one section straight trough and one section helicla flute slyness connect and compose, be one section straight trough of key 5 front ends and the one section helicla flute that leans on the shank of the key 32 1 ends, Fig. 1 illustrates and has a key guide slot 18 parallel with axis on key 8 outer rims, lock core hole 6 has the directed tooth 19 of the key corresponding with key guide slot 18 on key 5 upstream end hole walls, the directed tooth 19 of this key extend in this key guide slot 18 and is slidingly matched with it, and the effect of the directed tooth 19 of this key guide slot 18 and this key is to guarantee can not relatively rotate between key 8 and the lock core 2.

Fig. 2,4 show the circumferential resetting means of blade of a kind of blade lock of the present invention, this the device by along blade 3 outer circumference to the fan-shaped short slot 20 of one section ring type, be installed in lock core 2 upper edge lock core holes 6 and radially extend into hollow pin 21 in the fan-shaped short slot of described ring type 20, be encapsulated in the spring 22 in pin 21 holes 25, steel ball 23 that is slidingly matched with these pin 21 holes 25 and the V-shaped groove that is arranged in the fan-shaped short slot 20 of ring type on described blade 3 outer rims 24 constitute, the spring force of described spring 22 acts on the steel ball 23, the orphan of the fan-shaped short slot 20 of the described ring type in the summit of this steel ball 23 is long to be limited be maintained at all the time down in the V-shaped groove 24 that this blade 3 rotates when blade 3 is executed a torsion in lock core hole 6, and the inclined-plane of described V-shaped groove 24 is with the radially outer jack-up of steel ball 23 at this moment; When torsion disappears steel ball 23 under the spring force effect of spring 22 again the inclined-plane along V-shaped groove 24 enter V-shaped groove 24, and the summit of steel ball 23 is positioned on the center line of V-shaped groove 24, blade 3 forwards original position to.

Fig. 1,2 illustrate the opening of a kind of blade lock of the present invention, key 5 has directed tooth 19 1 ends of key via lock core hole 6 and inserts lock core hole 6, key guide slot 18 interacts with the directed tooth 19 of key and makes key 5 to move axially along lock core 2, can not in lock core hole 6, rotate, corresponding separately blade 3 protuberances 16 of each gathering sill 17 on key 5 outer rims, when key 5 inserts blade keyhole 4, each blade 3 is all around the specific angle of each autorotation of lock core hole 6 axis under the interaction of gathering sill 17 and key 5 protuberances 16, make dark short slot 14 on each blade 3 outer rim all forward the position corresponding to hitching post 10, hitching post 10 is under the effect of the spring force of marble spring 13, ejected groove 9 on the lock body cavity wall by pellet shot from a slingshot 12, embed described dark short slot 14 along blade 3 warp-wises, twist the shank of the key 32 this moment, lock core 2 relatively rotates with lock body 1, and this blade lock is unlocked.

Fig. 3,4 shows the lock-out state of blade lock of the present invention, when key 5 is extracted in lock core 2, steel ball 23 in the circumferential resetting means of blade is under the effect of the spring force of spring 22, inclined-plane along blade 3V shape groove 24 enters this V-shaped groove 24, blade 3 is thereupon around lock core hole 6 rotational, this moment, hitching post 10 skidded off the dark short slot 14 on blade 3 outer rims, a part enters in the groove 9 on lock body 1 cavity wall, all blades 3 all reset, lock body 1 is sealed by hitching post 10 with the interface of lock core 2, can not relatively rotate between lock body 1 and the lock core 2, this blade lock is locked.

Fig. 5 shows second embodiment of a kind of blade lock of the present invention to Fig. 6, removing the circumferential resetting means of its blade is different from outside first embodiment, other structure of blade lock is identical, referring to Fig. 5 and its blade of Fig. 6 in the same way resetting means by an annular boss 7 on blade 3 end faces, be positioned at blade 3 end faces near institute art annular boss 7 axially outside, one peripheral groove 26 of side, annular end cap 27 with described annular boss 7 external diameter stationary fits, be encapsulated in the spring 28 in the peripheral groove 26, withstand on a pair of T shape slide block 29 at spring 28 two ends and be located at the pin 31 that lock core 2 upper edge lock core holes 6 extend radially inwardly between the described a pair of T shape slide block 29 and constitute, Fig. 6 illustrates the end face of described annular end cap 27 in the annular sector notch 30 that has two symmetries corresponding to described peripheral groove 26 places, the width of this ring type sector notch 30 is less than the width of described peripheral groove 26, two sections T-slots that are positioned at symmetry on blade 3 end faces of these two sections ring type sector notch 30 and the common formation of this peripheral groove, the part of described T shape slide block 29 from the ring type sector notch 30 of described annular end cap 27 along sharf to stretching out, wherein a part is held in the described peripheral groove 26, this T shape slide block 29 can slide around blade 3 axis along described ring type sector notch 30, Fig. 5 and Fig. 6 illustrate because described pin 31 is positioned at the centre of two T shape slide blocks 29 all the time, make blade 3 to which direction rotation so no matter add torsion, described T shape slide block 29 withstands described post lock 31 with the blade 3 anti-original positions that push back under the effect of the spring force of described spring 28 after torsion is eliminated, and realizes circumferentially resetting of blade.The circumferential resetting means of blade that second embodiment adopts is compared with first embodiment, at first, has safe advantage, and promptly blade 3 rotating angular ranges are big, can strengthen the size of key of blade lock of the present invention effectively; The quantity that secondly can increase the shallow short slot 15 on the blade 3 is from having improved the immeasurability of this blade lock more effectively.

Claims

1. a blade lock comprises lock body (1), lock core (2), blade (3), blade keyhole (4) and key (5), it is characterized in that: lock core (2) axially has the described blade of a lock core hole (6) (3) and is word order in the lock core hole (6) for a plurality of being encapsulated in, this blade (3) circumferentially is slidingly matched with described lock core hole (6), has the circumferential resetting means of blade between described lock core hole (6) and the blade (3), the breach (8) that extends is vertically arranged between lock core (2) outer rim and the lock core hole (6), lock body (1) cavity wall is locating to have the groove (9) that extends vertically corresponding to described lock core (2) breach (8), the hitching post (10) of one loose fit is housed between this groove (9) and described lock core (2) breach (8), has the pellet shot from a slingshot hole (11) that radially communicates on the lock body (1) with described groove (9), in this pellet shot from a slingshot hole (11) pellet shot from a slingshot (12) is housed, this pellet shot from a slingshot (12) has the other end of this pellet shot from a slingshot of a marble spring (13) (12) to withstand on the outer rim of described hitching post (10) towards the end top of lock body (1), have on described blade (3) outer rim for dark short slot (14) and the shallow short slot (15) of described hitching post (10) from radially embedding, the degree of depth of described dark short slot (14) 〉=described hitching post (10) embeds the degree of depth of lock body (1) groove (9), the degree of depth of described shallow short slot (15)＜described hitching post (10) embeds the degree of depth of lock body (1) groove (9), described blade keyhole (4) inwall has the protuberance (16) that radially extends internally, described key (5) cross section is roughly rounded, has gathering sill (17) on this key (5) outer rim corresponding to described blade (3) protuberance (16), have the key guide slot (18) parallel with axis on described key (5) outer rim, described lock core hole (6) has the directed tooth (19) of the key corresponding with described key guide slot (18) on key (5) upstream end hole wall.

2. according to the described blade lock of claim 1, it is characterized in that: the circumferential resetting means of described blade by along blade (3) outer circumference to one section fan-shaped short slot of ring type (20), be installed on the lock core (2), radially extend into the interior hollow pin (21) of the fan-shaped short slot of described ring type (20) along lock core hole (6), be encapsulated in the spring (22) in described pin (21) hole (25), steel ball (23) that is slidingly matched with this pin (21) hole (25) and the V-shaped groove (24) that is arranged in the fan-shaped short slot of ring type (20) on described blade (3) outer rim constitute, the spring force of described spring (22) acts on the steel ball (23), and the summit of this steel ball (23) is maintained in the described V-shaped groove (24) under the long qualification of the orphan of (20) of the fan-shaped short slot of described ring type all the time.

3. according to the described blade lock of claim 1, it is characterized in that: the circumferential resetting means of described blade is by the annular boss (7) on blade (3) end face, be positioned at the peripheral groove (26) of blade (3) end face by the axial lateral surface of described annular boss (7), annular end cap (27) with described annular boss (7) external diameter stationary fit, be encapsulated in the spring (28) in the peripheral groove (26), withstand on a pair of T shape slide block (29) at spring (28) two ends and be located on the lock core (2), the pin (31) that extends radially inwardly between the described a pair of T shape slide block (29) along lock core hole (6) constitutes, the end face of described annular end cap (27) is in the ring type sector notch (30) of locating to have two symmetries corresponding to described peripheral groove (26), the width of this ring type sector notch (30) is less than the width of described peripheral groove (26), the part of described T shape slide block (29) is axially stretched out along blade (3) from the ring type sector notch (30) of described annular end cap (27), another part is maintained in the described circumference light groove (26), this T shape slide block (29) can slide around blade (3) axis along described ring type sector notch (30).

4. according to claim 1,2 or 3 described blades lock, it is characterized in that: the gathering sill (17) on described key (5) outer rim is that a section by key (5) front end is parallel to the straight trough of key (5) axis and connects and composes with one section helicla flute slyness towards the shank of the key (32) end.

5. according to claim 1,2 or 3 described blade locks, it is characterized in that: the dark short slot (14) and the shallow short slot (15) that embed for described hitching post (10) on described blade 3 outer rims are arc short slot.