CN210264220U - Blade lock core, lockset, key and lockset system - Google Patents

Abstract

The utility model relates to a tool to lock technical field especially relates to a blade lock core, tool to lock, key and tool to lock system. This blade lock core includes: lock shell, lock courage and clutch piece. The separation and reunion piece is equipped with the blade mounting groove, and movably in the blade mounting groove is equipped with the separation and reunion blade. The lock core is provided with a driving block, a clutch tooth and a plurality of clutch grooves which are matched with each other are respectively arranged between the driving block and the corresponding clutch blade, and the clutch tooth can be clamped in one of the clutch grooves. The clutch piece is axially movably arranged on the lock cylinder and has an engaging position and a disengaging position. When the clutch block is in the combining position, the clutch tooth is clamped in one of the clutch grooves, and when the clutch block is in the separating position, the clutch tooth is separated from the clutch groove. The blade lock cylinder switches between a combining position and a separating position by axially moving the clutch block, so that the replacement of a key of an opening and closing lock is realized. The whole process does not need to disassemble the lockset and the lock cylinder, does not need to use a special tool, and is simple and quick to operate.

Description

Blade lock core, lockset, key and lockset system

Technical Field

The utility model relates to a tool to lock technical field especially relates to a blade lock core, tool to lock, key and tool to lock system.

Background

Conventional rekeyable lock cylinders typically require the user to remove the cylinder from the lockset and remove the shell over the cylinder to replace the appropriate pins or blades so that the cylinder can be opened with a new key. This requires the user to have the expertise of a lock and lock cylinder, and so rekeying of the lock cylinder can usually only be done by the locksmith or professional. In addition, the need to use special tools and require the user to access the plug mechanism to interchange pins or blades during the pin or blade replacement process, which can easily lose or damage parts during the replacement process.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a blade lock core, tool to lock, key and tool to lock system to the problem that need disassemble lock core and tool to lock to the change key leads to changing inconveniently.

A blade lock cylinder, comprising: the clutch device comprises a lock shell, a lock liner and a clutch block, wherein the lock shell is provided with a hollow cavity, the lock liner is rotatably arranged in the hollow cavity of the lock shell, the clutch block is axially movably arranged on the lock liner and can rotate in the lock shell together with the lock liner, the clutch block is provided with a plurality of blade mounting grooves, a clutch blade is movably arranged in each blade mounting groove, and the clutch blade is provided with a locking position for locking the lock shell and the lock liner and an unlocking position for unlocking the lock shell and the lock liner;

the lock core is movably provided with driving blocks with the same number as the clutch blades, a clutch tooth and a plurality of clutch grooves which are matched with each other are respectively arranged between each driving block and the corresponding clutch blade, the clutch tooth can be clamped in one of the corresponding clutch grooves, when a key is inserted, the unlocking groove of the key drives the driving block to move, and therefore the driving block drives the clutch blades to move between an unlocking position and a locking position;

the separation and reunion piece has binding site and isolated position, and when the separation and reunion piece was in binding site, the separation and reunion tooth card was established in one of them separation and reunion recess, and the drive block can drive the separation and reunion blade and remove, and when the separation and reunion piece was in isolated position, the separation and reunion tooth breaks away from the separation and reunion recess, and the drive block can not drive the separation and reunion blade and remove.

In one embodiment, a plurality of clutch grooves are provided on the driving block, and clutch teeth are provided on the corresponding clutch blades.

In one embodiment, the lock core is provided with a limit groove extending along the axial direction of the lock core, when the clutch block is in the combining position, the clutch tooth is separated from the limit groove, the clutch blade can move in the blade mounting groove, when the clutch block is in the separating position, the clutch tooth is clamped in the limit groove, and the clutch blade cannot move in the blade mounting groove.

In one embodiment, the blade lock core further comprises an adjusting piece movably arranged at one end of the lock core close to the insertion end of the key, the adjusting piece is connected with the clutch block, and the adjusting piece is used for driving the clutch block to move between the combination position and the separation position.

In one embodiment, the adjusting piece comprises an adjusting screw, the adjusting screw is rotatably arranged at one end of the lock cylinder close to the insertion end of the key, the adjusting screw is in threaded connection with the clutch block, and the clutch block is driven to move between the combining position and the separating position by rotating the adjusting screw.

In one embodiment, the blade lock core further comprises a fixing piece, the fixing piece is detachably arranged at one end, close to the key, of the lock cylinder, and the fixing piece is abutted to the adjusting piece and used for preventing the adjusting piece from being separated from the lock cylinder.

In one embodiment, the clutch block is provided with a protruding part, the lock shell is provided with an annular groove matched with the protruding part, the lock shell is further provided with a limiting groove communicated with the annular groove, when the clutch block is in a combination position, the protruding part is clamped in the annular groove, so that the clutch block and the lock cylinder can rotate relative to the lock shell, when the clutch block is in a separation position, the protruding part is clamped in the limiting groove, and the clutch block and the lock cylinder cannot rotate relative to the lock shell.

In one embodiment, the lock shell is provided with a locking groove, when the clutch blade is in an unlocking position, the clutch blade is retracted in the clutch block, the lock cylinder and the clutch block can rotate relative to the lock shell, the lock core is in an unlocking state, when the clutch blade is in a locking position, the clutch blade extends into the locking groove, the lock cylinder and the clutch block cannot rotate relative to the lock shell, and the lock core is in a locking state.

In one embodiment, the blade lock cylinder further comprises: the driving block springs are arranged between the driving block and the lock cylinder and used for providing reset force for the clutch blades to return to the locking position.

In one embodiment, the blade lock cylinder further comprises: the locking blade is movably arranged in the blade mounting groove and is provided with a locking position for locking the lock shell and the lock cylinder and an unlocking position for unlocking the lock shell and the lock cylinder; and

and the locking blade springs are arranged between the locking blades and the clutch block and are used for providing resetting force for the locking blades to return to the locking position.

In one embodiment, the blade lock cylinder further comprises a clamp spring, an annular groove is formed in the lock cylinder, the clamp spring is clamped in the annular groove, and the clamp spring is used for axially limiting the lock shell and preventing the lock shell from being separated from the lock cylinder.

In one embodiment, the blade lock core further comprises a dustproof assembly, the dustproof assembly is arranged at one end, close to the key insertion, of the lock cylinder, the dustproof assembly comprises a dustproof cover, a dustproof sheet and a resetting piece, the dustproof cover is arranged at one end, close to the key insertion, of the lock cylinder, the dustproof cover is provided with a through hole for the key to insert, the dustproof sheet is rotatably arranged in the lock cylinder, the dustproof sheet shields or opens the through hole in the dustproof cover when rotating, and the resetting piece is used for pushing the dustproof sheet to rotate so as to shield the through hole in the dustproof cover.

A lock comprises a lock body and a lock core, wherein the lock core comprises the blade lock core.

A key is used for unlocking the blade lock cylinder of any one of the blade lock cylinders, and the key is provided with an unlocking groove which can drive a clutch blade to move from a locking position to an unlocking position.

A lock system comprising a blade cylinder as claimed in any one of the preceding claims, and a plurality of keys as described above, the unlocking slot of each key being such that at least one clutch tooth engages in a different clutch recess.

The beneficial effects of the utility model include:

above-mentioned blade lock core uses the drive block to drive the separation and reunion blade and removes in the blade mounting groove to the drive through the key makes the separation and reunion blade switch between shutting position and unblock position. While the clutch block has an engaged position and a disengaged position. When the first key is inserted to enable the lock cylinder to be in an unlocking state, the clutch block is axially moved to enable the clutch block to be in a separation position, at the moment, the clutch blade is separated from the driving block, and the clutch blade cannot move back and forth. When the first key is pulled out, the clutch blade is in the unlocking position. Then a second key is inserted, the clutch blade does not act, the clutch block is axially moved to enable the clutch block to be located at the combination position, the clutch teeth of the clutch blade are clamped in one of the clutch grooves matched with the unlocking groove of the second key, so that the clutch blade can be driven to move back and forth to realize locking and unlocking by inserting and pulling out the second key, but the first key cannot unlock the lock cylinder. The blade lock cylinder is switched between a combination position and a separation position by axially moving the clutch block, so that the switching from a first key-operated lock cylinder to a second key-operated lock cylinder is realized. The whole process of changing the key does not need to dismantle the lockset and the lock cylinder, and does not need to use special tools, thereby avoiding worrying about the loss or damage of lockset parts, and the whole operation process is simple and quick, and is convenient for changing the key.

Drawings

Fig. 1 is an exploded schematic view of a blade lock cylinder according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the cylinder in the structure shown in FIG. 1;

FIG. 3 is a schematic structural view of a clutch block of the structure shown in FIG. 1;

FIG. 4 is a schematic diagram of a driving block in the configuration of FIG. 1;

FIG. 5 is a schematic view of the clutch blade and drive block combination of the configuration shown in FIG. 1;

FIG. 6 is a schematic view of the lock housing of the arrangement of FIG. 1;

FIG. 7 is a cross-sectional view of the lock cylinder of the arrangement of FIG. 1 in a locked condition;

FIG. 8 is a cross-sectional view of the lock cylinder of the arrangement of FIG. 1 in an unlocked state;

FIG. 9 is a cross-sectional view of the lock cylinder with the clutch block in an engaged position in the configuration shown in FIG. 1;

FIG. 10 is a cross-sectional view of the lock cylinder with the clutch block in a disengaged position in the configuration shown in FIG. 1;

fig. 11 is a flowchart of a method for changing a code of a blade lock core according to an embodiment of the present invention.

Description of reference numerals:

10-a blade lock cylinder;

110-a lock case;

111-a locking groove;

112-an annular groove;

113-a limit groove;

120-lock liner;

121-drive block mounting holes;

122-a limit groove;

123-ring groove;

124-U-shaped boss;

130-a clutch block;

131-a blade mounting groove;

132-a boss;

133-U-shaped grooves;

140-a locking blade;

150-clutch blades;

151-clutch teeth;

160-a drive block;

161-clutch recess;

162-a drive section;

170-driving the block spring;

180-locking leaf springs;

190-an adjustment member;

200-a fixture;

210-a dust prevention assembly;

211-dust cover;

212-dust guard sheet;

213-a rotating shaft;

214-a reset member;

220-circlip.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following embodiments are provided, in combination with the accompanying drawings, to further describe the blade lock cylinder, the lock, the key and the lock system of the present invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Referring to fig. 1, a blade lock cylinder 10 according to an embodiment of the present invention includes: the lock shell 110 is provided with a hollow cavity, the lock core 120 is rotatably arranged in the hollow cavity of the lock shell 110, and the clutch piece 130 is arranged in the lock shell 110. The clutch piece 130 is arranged on the lock cylinder 120 so as to be axially displaceable, and the clutch piece 130 can be rotated together with the lock cylinder 120 in the lock housing 110. The clutch block 130 is provided with a plurality of blade mounting grooves 131, a clutch blade 150 is movably disposed in each blade mounting groove 131, and the clutch blade 150 has a locking position for locking the lock case 110 and the cylinder core 120 and an unlocking position for unlocking the lock case 110 and the cylinder core 120.

The lock core 120 is movably provided with a number of driving blocks 160 equal to the number of the clutch blades 150, a plurality of clutch teeth 151 and a plurality of clutch grooves 161 which are mutually matched are respectively arranged between each driving block 160 and the corresponding clutch blade 150, and the clutch teeth 151 can be clamped in one of the corresponding clutch grooves 161 (as shown in fig. 5). When the key is inserted, the unlocking slot of the key moves the driving block 160, so that the driving block 160 moves the clutch blade 150 between the unlocking position and the locking position.

The clutch block 130 has an engaging position and a disengaging position, when the clutch block 130 is at the engaging position, the clutch teeth 151 are engaged in one of the clutch grooves 161, the driving block 160 can drive the clutch blade 150 to move, when the clutch block 130 is at the disengaging position, the clutch teeth 151 are disengaged from the clutch grooves 161, and the driving block 160 cannot drive the clutch blade 150 to move.

In the blade lock cylinder 10 of the embodiment, the driving block 160 is used to drive the clutch blade 150 to move in the blade mounting groove 131, and the clutch blade 150 is switched between the locking position and the unlocking position by the driving of the key, so that the lock cylinder is unlocked and locked. While clutch block 130 has an engaged position and a disengaged position. With the clutch block 130 in the disengaged position, the clutch blades 150 are disengaged from the drive block 160, at which time a rekeying operation may be performed. Specifically, when the first key is inserted to unlock the lock cylinder, the clutch block 130 is moved axially to place the clutch block 130 in the disengaged position, and the clutch blade 150 is disengaged from the driving block 160, so that the clutch blade 150 cannot move back and forth. When the first key is pulled out, the clutch blade 150 is in the unlocked position. Then a second key is inserted, the clutch blade 150 does not act, at the moment, the clutch block 130 is axially moved to enable the clutch block 130 to be located at the combination position, the clutch tooth 151 of the clutch blade 150 is clamped in one of the clutch grooves 161 matched with the unlocking groove of the second key, and therefore the clutch blade 150 can be driven to move back and forth to realize locking and unlocking by inserting and pulling out the second key, but the first key cannot unlock the lock cylinder.

The blade lock cylinder 10 is switched between the engaging position and the disengaging position by axially moving the clutch block 130, so that the switching from a first key-operated lock cylinder to a second key-operated lock cylinder is realized, and the key-operated lock cylinder is changed. The whole replacement process does not need to disassemble the lockset and the lock cylinder and does not need to use special tools, so that the lockset parts are not lost or damaged. The whole operation process is simple and quick, and the key is convenient to replace.

The driving block 160 may have a driving portion 162, and when the key is inserted, the unlocking slot of the key drives the driving portion 162 to move, so that the driving block 160 moves, and the clutch blade 150 can be driven to move back and forth.

Unlocking and locking of the lock cylinder can be achieved in a number of ways. As shown in fig. 1, 7 and 8, as an implementation, a locking groove 111 is formed on the lock case 110. When the clutch blade 150 is in the unlocking position, the clutch blade 150 is retracted into the clutch block 130, the cylinder core 120 and the clutch block 130 can rotate relative to the lock case 110, and the lock cylinder is in the unlocking state (as shown in fig. 8). When the clutch blade 150 is in the locking position, the clutch blade 150 extends into the locking slot 111, the cylinder core 120 and the clutch block 130 cannot rotate relative to the lock case 110, and the lock cylinder is in the locking state (as shown in fig. 7). The unlocking and locking of the key cylinder can be easily achieved by the locking groove 111 and the clutch blade 150 that can move back and forth. The blade lock cylinder 10 has a simple and compact structure and is very convenient to operate. It is understood that the number of the clutch vanes 150 on the clutch block 130 may be plural. When the lock cylinder is unlocked, each clutch blade 150 is retracted within the clutch block 130. When the lock core is locked, at least one clutch blade 150 extends into the locking groove 111, namely, at least one clutch blade 150 is in the locking position.

Further, the blade lock cylinder 10 further includes the same number of driving block springs 170 as the number of the clutch blades 150. A drive block spring 170 is disposed between the drive block 160 and the cylinder core 120 for providing a return force for returning the clutch blade 150 to the latched position. The driving block spring 170 may be a coil spring, one end of which abuts against the driving block 160 and the other end of which abuts against the cylinder core 120. Referring to fig. 2, in particular, the lock core 120 is provided with a driving block mounting hole 121, and the driving block 160 is mounted in the driving block mounting hole 121 and can move in the driving block mounting hole 121. And one end of the coil spring away from the driving block 160 can abut against the bottom of the driving block mounting hole 121 to provide an elastic restoring force for the driving block 160 to drive the clutch blade 150 to return to the locking position.

Referring to fig. 1, 7 and 8, as an implementable manner, the blade lock cylinder 10 further includes: the latch blades 140 and the same number of latch blade springs 180 as the latch blades 140. The locking blade 140 is movably disposed in the blade mounting groove 131, and the locking blade 140 has a locking position to lock the lock case 110 and the cylinder core 120 and an unlocking position to unlock the lock case 110 and the cylinder core 120. A latch blade spring 180 is disposed between the latch blade 140 and the clutch block 130 for providing a return force for the latch blade 140 to return to the latched position. During rekeying, when a first key is inserted to unlock the lock cylinder, both the locking blade 140 and the clutch blade 150 are in the unlocked position. When the first key is withdrawn, the clutch blade 150 is in the unlocked position and the locking blade 140 is in the locked position. By providing the locking blade 140, the lock cylinder can be ensured to be in a locked state when the first key is pulled out, thereby improving the safety of the blade lock cylinder 10. When a second key is inserted, the locking blade 140 moves from the locked position to the unlocked position.

Among them, the locking position of the locking blade 140 may be a position when the locking blade 140 is extended into the locking groove 111, and the unlocking position of the locking blade 140 may be a position when the locking blade 140 is retracted into the clutch block 130. It is understood that the number of the locking blades 140 on the clutch block 130 may be plural. When the lock cylinder is unlocked, each locking blade 40 is retracted within clutch block 130. When the lock core is locked, at least one locking blade 140 extends into the locking groove 111, that is, at least one locking blade 140 is in the locking position. The locking blade spring 180 may also be a coil spring having one end abutting on the clutch block 130 and the other end abutting on the locking blade 140 to provide the locking blade 140 with an elastic restoring force to restore to the locking position.

Referring to fig. 1, in one embodiment, a plurality of clutch recesses 161 are provided on the driving block 160 and the clutch teeth 151 are provided on the corresponding clutch blades 150. It will be appreciated that in other embodiments, a plurality of clutch recesses may be provided on the clutch blades, with the clutch teeth provided on the corresponding drive blocks. As long as can realize that the separation and reunion tooth can block and establish in one of them separation and reunion recess for the drive block can drive the removal of separation and reunion blade.

Referring to fig. 1 and 2, as an implementation manner, the lock cylinder 120 is provided with a limit groove 122 extending along an axial direction of the lock cylinder 120, when the clutch block 130 is at the engaging position, the clutch teeth 151 are disengaged from the limit groove 122, the clutch blades 150 are movable in the blade mounting grooves 131, and when the clutch block 130 is at the disengaging position, the clutch teeth 151 are engaged in the limit groove 122, and the clutch blades 150 cannot move in the blade mounting grooves 131. In this embodiment, the retaining groove 122 is capable of receiving the clutch teeth 151 when the clutch block 130 is in the disengaged position. By providing the limiting groove 122, on the one hand, when the clutch block 130 is in the separation position, the position accuracy of the clutch blade 150 is ensured, so that the clutch teeth 151 can be smoothly clamped into the clutch grooves 161 when the clutch block 130 is switched to the engagement position. On the other hand, it is possible to prevent clutch block 130 from being brought into the disengaged position by a malicious force when clutch block 130 is brought into the engaged position, when no key is used or when a wrong key is used. Thereby improving the security and theft prevention of the blade lock cylinder 10. Specifically, when the key is not used or the wrong key is used, the clutch teeth 151 are not aligned with the limiting grooves 122, the clutch teeth 151 cannot be engaged with the limiting grooves 122, and the clutch block 130 cannot be smoothly moved axially to the disengaged position.

Axial movement of clutch block 130 relative to cylinder core 120 can be accomplished in a variety of ways. Referring to fig. 9 and 10, as an implementation manner, the blade lock cylinder 10 further includes an adjusting member 190 movably disposed at an end of the cylinder core 120 near the key insertion end, the adjusting member 190 is connected to the clutch block 130, and the adjusting member 190 is configured to drive the clutch block 130 to move between the engaging position and the disengaging position. The adjustment member 190 facilitates movement of the clutch block 130 between the engaged and disengaged positions as desired for ease of operation.

In one embodiment, the adjustment member 190 comprises an adjustment screw rotatably disposed at an end of the cylinder core 120 proximate to the key insertion. The adjustment screw is threadably engaged with clutch block 130 and is rotated to move clutch block 130 between the engaged position and the disengaged position. It will be appreciated that the adjustment screw is axially disposed for pushing and pulling the clutch block 130 by rotation thereof. The adjusting screw can adopt an inner hexagonal interface, and the interface faces to one side of the lock core 120, which is provided with a key port, so that the adjusting screw can be conveniently adjusted by adopting an inner hexagonal screwdriver, and is convenient and quick. The adjusting screw is convenient for fixing the adjusting screw and the lock cylinder 120 relatively, when the position of the clutch block 130 is required to be adjusted, the clutch block 130 can be pushed and pulled only by screwing in or screwing out the adjusting screw, and therefore the clutch block 130 can move between the combination position and the separation position. In other embodiments, the adjustment member 190 may also include a linkage movably disposed at an end of the locking bar proximate to the key insertion, and coupled to the clutch plate 130. Movement of the linkage moves clutch block 130 between the engaged and disengaged positions.

Referring to fig. 9 and 10, in one embodiment, the blade lock cylinder 10 further includes a fixing member 200 detachably disposed at an end of the cylinder core 120 near the key insertion. The fixing member 200 abuts against the adjuster 190 to prevent the adjuster 190 from coming off the cylinder core 120. The fixing member 200 may be a fixing sheet. The fixing member 200 may be a fixing base. When the adjusting member 190 comprises an adjusting screw, the fixing member 200 abuts on the screw cap, and a through hole for operating a screwdriver may be provided on the fixing member 200. When the clutch block 130 needs to be moved, the screwdriver applies a rotating acting force to the adjusting screw through the through hole, so that the adjusting screw rotates, and the clutch block 130 is driven to move.

Referring to fig. 1 to 3, further, the clutch piece 130 may be provided with a U-shaped groove 133, and the lock core 120 is provided with a U-shaped boss 124 engaged with the U-shaped groove 133. Through the U-shaped groove 133 and the U-shaped boss 124, the axial movement of the clutch block 130 relative to the lock cylinder 120 is facilitated, and the moving path of the clutch block 130 is ensured not to be deviated. It will be appreciated that the U-shaped groove 133 and the U-shaped boss 124 may be replaced by a boss and groove having a V-shaped cross section, a boss and groove having a semicircular cross section, or the like.

As shown in fig. 1 and 6, as an implementation manner, the clutch piece 130 is provided with a protruding portion 132, the lock case 110 is provided with an annular groove 112 engaged with the protruding portion 132, and the lock case 110 is further provided with a limiting groove 113 communicated with the annular groove 112. As shown in fig. 9, when clutch block 130 is in the engaged position, projection 132 is captured in annular recess 112 to allow clutch block 130 and cylinder 120 to rotate relative to housing 110. When clutch block 130 is in the disengaged position as shown in fig. 10, projection 132 is engaged in detent recess 113, and clutch block 130 and cylinder core 120 cannot rotate relative to lock housing 110. The annular recess 112 ensures that the clutch piece 130 can be rotated together with the cylinder core 120 relative to the lock housing 110 in the engaged position. And because the existence of spacing recess 113, when clutch piece 130 is in the separation position, bellying 132 card is established in spacing recess 113, guarantees that clutch piece 130 can not take place to rotate, and lock courage 120 also can not rotate simultaneously. Therefore, the lock cylinder is in a locking state when the clutch block 130 is not reset to the combination position, and the use reliability of the blade lock cylinder 10 is improved.

Referring to fig. 1 and 7, as an implementation manner, the blade lock core 10 further includes a snap spring 220, a ring groove 123 is formed on the lock core 120, and the snap spring 220 is snapped in the ring groove 123. The clamp spring 220 is used for axially limiting the lock shell 110 and preventing the lock shell 110 from being separated from the lock cylinder 120. Through snap ring and annular 123, guarantee the stability of lock core 10, improve the reliability in service of lock core 10.

Referring to fig. 1 and 7, as an implementable manner, the blade lock cylinder 10 further includes a dust-proof assembly 210, and the dust-proof assembly 210 is disposed at an end of the cylinder core 120 near the key insertion. Dustproof subassembly 210 includes shield 211, dust piece 212 and resets 214, and shield 211 sets up and is close to key male one end at lock courage 120, and shield 211 is equipped with and supplies key male through-hole, and dust piece 212 rotates and sets up in lock courage 120, shields or opens the through-hole on shield 211 when dust piece 212 rotates, resets 214 and is used for promoting dust piece 212 and rotates the through-hole in order to shield on the shield 211. It is understood that the dust cover 211 may be a hollow thin-walled structure and is sleeved on the end of the cylinder core 120 where the key hole is formed. The dust-proof piece 212 is a sheet structure and is rotatably connected to the end of the cylinder 120 having the key hole by a rotating shaft 213, and the dust-proof piece 212 can rotate around the rotating shaft 213. When the key is to be inserted into the cylinder core 120, the key presses the dust-proof piece 212 to open the dust-proof piece 212, and the key can be inserted into the cylinder core 120 through the through hole. When the key exits the cylinder 120, the dust-proof piece 212 covers the through hole of the dust-proof cover 211. The reset member 214 may be a torsion spring, one torsion leg of the torsion spring abuts against the dust-proof plate 212, and the other torsion leg may abut against the lock core 120, so as to provide a reset force for covering the dust-proof plate 212. The key hole of the lock cylinder 10 can be effectively protected by the dustproof assembly 210, and the problem that the unlocking is difficult or fails due to the fact that foreign matters enter the key hole is avoided.

An embodiment of the utility model provides a tool to lock is still provided, including lock body and lock core. Wherein the lock cylinder comprises the blade lock cylinder 10 according to any of the above embodiments. Due to the beneficial effects of the blade lock cylinder 10, the lock comprising the blade lock cylinder 10 also has corresponding beneficial effects.

An embodiment of the utility model provides a key for unblock above arbitrary blade lock core 10. The key has an unlocking slot that moves the clutch blade 150 from the locked position to the unlocked position.

An embodiment of the present invention further provides a lock system, including the blade lock cylinder 10 according to any of the above embodiments, and a plurality of keys as described above. The unlocking slot of each key allows at least one clutch tooth 151 to be engaged in a different clutch recess 161. Through using the utility model discloses a tool to lock system, the common user who does not have tool to lock professional knowledge and specialized tool also can change the key by oneself, need not to disassemble the lock core, and easy operation is quick, and the user of being convenient for changes the key.

Referring to fig. 11, an embodiment of the present invention further provides a method for changing a blade lock core, where the blade lock core includes the blade lock core 10 according to any of the above embodiments, and the method for changing the blade lock core includes the following steps:

inserting a correct first key to enable the lock cylinder to be in an unlocking state;

moving the clutch block axially from the engaged position to the disengaged position;

after the first key is pulled out, a correct second key is inserted;

the clutch block is moved axially from the disengaged position to the engaged position.

Through adopting the utility model discloses the method of changing a yard of blade lock core, the common user who does not have tool to lock professional knowledge and professional instrument also can change the key by oneself, need not to disassemble the lock core, and easy operation is quick, and the user of being convenient for changes the key.

The embodiment of the utility model provides a blade lock core 10, as shown in FIG. 7, during the shutting, separation and reunion piece 130 is in acquiescent binding site, and the separation and reunion tooth 151 of separation and reunion blade 150 breaks away from spacing groove 122 this moment to the card is established in one of them of a plurality of separation and reunion recesses 161 of drive block 160, and drive block 160 combines with separation and reunion blade 150. The clutch blade 150 extends into the locking groove 111 through the driving block 160 under the spring action of the driving block spring 170, the clutch blade 150 is clamped between the clutch block 130 and the lock core 120, the lock core 120 and the clutch block 130 cannot rotate relative to the lock case 110, and the lock core is in a locking state. Meanwhile, the locking blade 140 extends into the locking groove 111 under the spring action of the locking blade spring 180, the locking blade 140 is clamped between the clutch block 130 and the lock core 120, the lock core 120 and the clutch block 130 cannot rotate relative to the lock case 110, and the lock core is in a locking state.

As shown in fig. 8, when unlocking, the correct key is inserted, and the key presses the dust-proof piece 212 to open the dust-proof piece 212. The key unlocking slot drives the locking blade 140 to move back and forth in the blade mounting groove 131, and simultaneously the key unlocking slot drives the driving block 160 to thereby move the clutch blade 150 in the blade mounting groove 131. When the key is completely inserted, the locking blade 140 and the clutch blade 150 move from the locking position to the unlocking position, the locking blade 140 and the clutch blade 150 are completely retracted into the clutch block 130 and are no longer clamped between the clutch block 130 and the lock shell 110, the cylinder core 120 and the clutch block 130 can rotate relative to the lock shell 110, and the lock core is in the unlocking state.

Referring to fig. 9 and 10, in rekeying, the correct first key is first inserted, with the lock cylinder in the unlocked state, and the locking blade 140 and the clutch blade 150 are fully retracted into the clutch block 130. The adjusting member 190 drives the clutch block 130 to move along the axial direction of the cylinder core 120, so that the clutch block 130 moves from the engaging position to the disengaging position, and the protruding portion 132 enters the limiting groove 113. At this time, the clutch teeth 151 of the clutch blade 150 are disengaged from the clutch grooves 161, and at the same time, the clutch teeth 151 enter the stopper grooves 122, so that the clutch blade 150 cannot move in the blade mounting groove 131.

Then the first key is pulled out, the key unlocking slot drives the locking blade 140 and the driving block 160 to move back and forth, and the driving block 160 is disengaged from the clutch blade 150, so the driving block 160 can not drive the clutch blade 150 to move. When the first key is fully withdrawn, the locking blade 140 is in the locked position and the clutch blade 150 is in the unlocked position.

The correct second key is then inserted and the key-unlocking slot drives the locking blade 140 and the drive block 160 back and forth while the clutch blade 150 remains inactive. When the second key is fully inserted, both the locking blade 140 and the clutch blade 150 are in the unlocked position. At this time, the adjusting member 190 drives the clutch piece 130 to move reversely along the axial direction of the cylinder core 120, so that the clutch piece 130 moves from the separation position to the engagement position, and the protrusion 132 enters the annular groove 112 from the limit groove 113. At this time, the clutch teeth 151 of the clutch blade 150 are disengaged from the stopper grooves 122 while the clutch teeth 151 are caught in one of the plurality of clutch recesses 161 matching the second key unlocking groove. When the second key is pulled out, the key unlocking slot drives the locking blade 140 and the driving block 160 to move back and forth, and the driving block 160 is combined with the clutch blade 150, so that the clutch blade 150 is driven to move at the same time. When the second key is fully withdrawn, the locking blade 140 and the clutch blade 150 are both in the locked position and the lock cylinder is in the locked state, at which time the rekeying operation is completed.

It will be appreciated that prior to rekeying, a first key may unlock the lock cylinder, but a second key may not. After the key is replaced, the second key can unlock the lock cylinder, but the first key cannot unlock the lock cylinder. It will be appreciated that the rekeying operation may also be continued so that the first key can unlock the lock cylinder but the second key cannot.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (15)

1. A blade lock core, includes lock shell (110) and lock courage (120), lock shell (110) have the cavity, lock courage (120) rotationally set up in the cavity of lock shell (110), its characterized in that still includes:

the clutch block (130) is axially movably arranged on the lock core (120), the clutch block (130) and the lock core (120) can rotate together in the lock shell (110), a plurality of blade mounting grooves (131) are formed in the clutch block (130), a clutch blade (150) is movably arranged in each blade mounting groove (131), and the clutch blade (150) has a locking position for locking the lock shell (110) and the lock core (120) and an unlocking position for unlocking the lock shell (110) and the lock core (120);

the lock core (120) is movably provided with driving blocks (160) with the same number as the clutch blades (150), a clutch tooth (151) and a plurality of clutch grooves (161) which are matched with each other are respectively arranged between each driving block (160) and the corresponding clutch blade (150), the clutch tooth (151) can be clamped in one of the corresponding clutch grooves (161), when a key is inserted, an unlocking groove of the key drives the driving block (160) to move, and therefore the driving block (160) drives the clutch blades (150) to move between an unlocking position and a locking position;

the clutch block (130) is provided with a combination position and a separation position, when the clutch block (130) is located at the combination position, the clutch teeth (151) are clamped in one of the clutch grooves (161), the driving block (160) can drive the clutch blades (150) to move, when the clutch block (130) is located at the separation position, the clutch teeth (151) are separated from the clutch grooves (161), and the driving block (160) cannot drive the clutch blades (150) to move.

2. The blade lock cylinder according to claim 1, characterized in that the plurality of clutch recesses (161) are provided on the driving block (160) and the clutch teeth (151) are provided on the corresponding clutch blade (150).

3. The blade lock core according to claim 2, wherein the lock core (120) is provided with a limit groove (122) extending along the axial direction of the lock core (120), when the clutch block (130) is in the engaging position, the clutch tooth (151) is disengaged from the limit groove (122), the clutch blade (150) can move in the blade mounting groove (131), when the clutch block (130) is in the disengaging position, the clutch tooth (151) is clamped in the limit groove (122), and the clutch blade (150) cannot move in the blade mounting groove (131).

4. The blade lock core according to claim 1, further comprising an adjusting member (190) movably disposed at an end of the lock core (120) near to the key insertion, wherein the adjusting member (190) is connected to the clutch block (130), and the adjusting member (190) is used for driving the clutch block (130) to move between the engaging position and the disengaging position.

5. The blade lock cylinder according to claim 4, characterized in that the adjusting member (190) comprises an adjusting screw rotatably disposed at an end of the cylinder core (120) near the insertion of the key, the adjusting screw being threadedly coupled to the clutch block (130), the clutch block (130) being moved between the engaged position and the disengaged position by rotating the adjusting screw.

6. The blade lock core according to claim 4, further comprising a fixing member (200) detachably disposed at an end of the lock core (120) near to the key insertion, wherein the fixing member (200) abuts against the adjusting member (190) for preventing the adjusting member (190) from being released from the lock core (120).

7. The blade lock core according to claim 1, wherein the clutch piece (130) is provided with a protruding portion (132), the lock case (110) is provided with an annular groove (112) engaged with the protruding portion (132), the lock case (110) is further provided with a limiting groove (113) communicated with the annular groove (112), when the clutch piece (130) is in the engagement position, the protruding portion (132) is clamped in the annular groove (112) so that the clutch piece (130) and the lock cylinder (120) can rotate relative to the lock case (110), when the clutch piece (130) is in the disengagement position, the protruding portion (132) is clamped in the limiting groove (113), and the clutch piece (130) and the lock cylinder (120) cannot rotate relative to the lock case (110).

8. The blade lock core according to claim 1, wherein a locking slot (111) is formed in the lock case (110), when the clutch blade (150) is in the unlocked position, the clutch blade (150) is retracted into the clutch block (130), the cylinder (120) and the clutch block (130) can rotate relative to the lock case (110), the lock core is in the unlocked state, when the clutch blade (150) is in the locked position, the clutch blade (150) extends into the locking slot (111), the cylinder (120) and the clutch block (130) cannot rotate relative to the lock case (110), and the lock core is in the locked state.

9. The blade lock cylinder of claim 8, further comprising: the number of the driving block springs (170) is the same as that of the clutch blades (150), and the driving block springs (170) are arranged between the driving block (160) and the lock core (120) and used for providing resetting force for the clutch blades (150) to return to a locking position.

10. The blade lock cylinder of claim 1, further comprising:

a locking blade (140) movably disposed in the blade mounting groove (131), the locking blade (140) having a locking position to lock the lock case (110) and the cylinder core (120) and an unlocking position to unlock the lock case (110) and the cylinder core (120); and

a number of latch blade springs (180) equal to the number of latch blades (140), the latch blade springs (180) being disposed between the latch blades (140) and the clutch block (130) for providing a return force for returning the latch blades (140) to a latched position.

11. The blade lock core according to claim 1, further comprising a clamp spring (220), wherein an annular groove (123) is formed in the lock core (120), the clamp spring (220) is clamped in the annular groove (123), and the clamp spring (220) is used for axially limiting the lock shell (110) and preventing the lock shell (110) from being separated from the lock core (120).

12. The blade lock core according to any one of claims 1 to 11, further comprising a dust-proof assembly (210), wherein the dust-proof assembly (210) is disposed at an end of the lock core (120) close to the key insertion, the dust-proof assembly (210) comprises a dust-proof cover (211), a dust-proof sheet (212) and a reset piece (214), the dust-proof cover (211) is disposed at an end of the lock core (120) close to the key insertion, the dust-proof cover (211) is provided with a through hole for the key insertion, the dust-proof sheet (212) is rotatably disposed on the lock core (120), the dust-proof sheet (212) shields or opens the through hole on the dust-proof cover (211) when rotating, and the reset piece (214) is used for pushing the dust-proof sheet (212) to rotate to shield the through hole on the dust-proof cover (211).

13. A lock comprising a lock body and a lock cylinder, characterized in that the lock cylinder comprises a blade lock cylinder (10) according to any one of claims 1-12.

14. A key for unlocking the blade lock cylinder (10) of any one of claims 1 to 12, the key having an unlocking slot which can bring the clutch blade (150) from the locked position to the unlocked position.

15. A locking system comprising a blade cylinder (10) according to any one of claims 1 to 12, and a plurality of keys according to claim 14, the unlocking slots of each key being such that at least one clutch tooth (151) engages in a different clutch recess (161).

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