Anti-accidental opening idling lock cylinder lock and key

Abstract

The present invention discloses an anti-mis-opening idle lock cylinder lock and its key, the lock cylinder comprises an outer sleeve, an inner sleeve, a lock plate group and a lock plate clamping device, when a wrong key is inserted, the lock plate clamping device is not limited to the lock plate group, the key can only drive the lock plate to idle in the inner sleeve, when the right key is inserted, the lock plate clamping device is limited to the lock plate group, the key can unlock; an idle part is arranged in the inner sleeve, the end surface of the idle part is provided with a non-circular embedding groove or shaft hole, one end of the outer sleeve is provided with an opening, the opening is provided with an insertion and extraction area and a blocking area along the rotation direction of the key, the insertion and extraction area is for the key to be inserted into or pulled out of the lock hole, and the blocking area limits the key from being pulled out of the lock hole. The present invention arranges the insertion and extraction area at the opening of the outer sleeve, so that the key cannot be pulled out when it rotates to the blocking area, and can only be pulled out after the lock plates are returned to their positions when it rotates to the insertion and extraction area, thereby avoiding the situation that the lock is easily opened by the wrong key after the key is pulled out, and improving the specific safety of the lock.

Description

Technical Field

[0001] The invention relates to the field of locks, and in particular to an anti-misopening idling lock cylinder lock and a key thereof. Background Art

[0002] Locks are common anti-theft tools. Pin locks are widely used for their simple structure and practicality. The structure of pin locks is roughly the same, that is, a group of cylindrical pins are installed in the pin hole of the lock core, and the key has a corresponding depth of teeth. When unlocking, the corresponding pins are moved up and down by the different heights of the key teeth, so that the height of each pin of the lock core is at the interface between the outer shell and the lock core, and then the key is rotated to drive the lock core to achieve the purpose of unlocking. This type of lock has a tooth channel. Without touching the pins, foreign objects can easily enter the inner end of the keyhole, and various unlocking tools can be inserted through the tooth channel to perform technical unlocking, which has poor safety. In view of this, people have developed an idle lock with a lock plate. When the key does not match the key channel of the idle lock, the lock core can only idle in the outer shell, and will not be unlocked. Only when the key matches can the lock core be driven to rotate through the lock plate to unlock, thereby effectively improving the anti-theft performance of the lock. However, the existing idle locks still have the following shortcomings: first, the numbering is mainly achieved by the number of key tooth segments and lock plates on the key, the number of numbers is limited, the lock has a high degree of redundancy, and the security is low; second, because the key can be pulled out at any position during the rotation process, it is easy to pull out the key directly without the lock plate returning to its position. In this case, the lock can be opened with the wrong key, which reduces the security and practicality of the lock. Summary of the invention

[0003] The present invention aims at solving the defects in the prior art and provides a simple and practical structure, a highly safe and anti-mis-opening idling lock cylinder lock and a key thereof.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] The invention discloses an anti-mis-opening idling lock cylinder lock, comprising a lock cylinder, wherein the lock cylinder comprises an outer sleeve, a rotatable inner sleeve, a locking plate group and a locking plate clamping device, wherein the inner sleeve is rotatably installed in the outer sleeve, the locking plate group is rotatably installed in the inner sleeve, the locking plate group comprises a plurality of locking plates, which are sequentially overlapped and arranged along the key insertion direction of the inner sleeve, and a lock hole for the key to pass through is arranged at the center of each locking plate; when an incorrect key is inserted, the locking plate clamping device is not restricted to the locking plate group, and the key can only drive the locking plate to idling in the inner sleeve; when a correct key is inserted, the locking plate clamping device is restricted to the locking plate group, and the key passes The locking plate group can drive the inner sleeve to rotate to unlock the lock, and also includes an idle part arranged in the inner sleeve, the end face of the idle part is provided with a non-circular embedding groove or axial hole adapted to the shape of the free tail end of the key, and the idle part can be driven by the key to rotate relative to the inner sleeve; one end of the outer sleeve is provided with an opening for the key to pass through, and the opening is provided with an insertion and extraction area and a blocking area along the rotation direction of the key. The insertion and extraction area is for the key to be inserted into or pulled out of the lock hole, and the blocking area limits the key from being pulled out of the lock hole. The insertion and extraction area is a fan-shaped notch distributed at the opening, and the distribution angle of the fan-shaped notch is 30°~150°.

[0006] As a preferred embodiment of the present invention, a key is also included, wherein the blocking area is provided with a blocking portion protruding toward the opening center of the outer sleeve, the key has a main body and a handle portion connected to the rear end of the main body, and the rear end of the main body along the insertion direction is provided with a card block corresponding to the blocking portion, when the key is rotated to the blocking area, the card block is stuck on the inner side of the blocking portion; the free tail end of the main body is provided with a protrusion corresponding to the non-circular groove or shaft hole.

[0007] As a preferred embodiment of the present invention, the main body is a flat body having wider left and right sides and narrower upper and lower sides. The main body has a key card section for cooperating with the lock plate group and an extension section connected to the handle portion in sequence along its insertion direction. The card block is arranged on the upper side and / or lower side of the extension section away from the handle portion.

[0008] As a preferred solution of the present invention, the card block protrudes outward from the upper side and / or lower side of the main body, the protruding height of the card block is 0.5-1.5 mm, and the width of the card block along the insertion direction of the main body is 0.5-1.5 mm.

[0009] As a preferred solution of the present invention, the blocking portion is integrally connected to the outer casing, and the outer surface of the blocking portion is flush with the rear end surface of the outer casing, and the protruding distance of the blocking portion along the radial direction of the opening is 0.5 to 1.5 mm.

[0010] As a preferred solution of the present invention, a line connecting the starting point of the fan-shaped notch and the center of the opening is perpendicular to the locking direction of the locking plate locking device, and the fan-shaped notch extends counterclockwise from its starting point.

[0011] As a preferred solution of the present invention, a first driven side surface and a first height limiting top surface are arranged on the side wall of the lock hole of at least one first locking plate, and a second driven side surface and a second height limiting top surface are arranged on the side wall of the lock hole of at least one second locking plate, and the first driven side surface and the second driven side surface are staggered front and back in the rotation direction of the locking plate, and the first height limiting top surface and the second height limiting top surface are staggered in height relative to each other along the radial direction of the locking plate; the key card section of the key is provided with a plurality of teeth front and back along its insertion direction, and the aforementioned teeth are vertically concave and convex height steps on the narrower upper side surface and / or lower side surface, and each tooth corresponds to the position of each aforementioned locking plate.

[0012] As a preferred solution of the present invention, the locking plate locking device includes an elastic thrust device, a locking plate pin and a limiting groove arranged on the side wall of the inner sleeve body, the limiting groove radially penetrates the side wall of the inner sleeve body and extends axially, the aforementioned locking plate pin can be radially movably arranged in the limiting groove, and the elastic thrust device provides the locking plate pin with a tendency to maintain radial inward movement; a locking groove is arranged on the outer ring surface of each locking plate; when the position arrangement of the locking plate slots of all locking plates matches the shape of the locking plate pin, the aforementioned locking plate pin is pushed by the elastic thrust device to be embedded in the locking plate slot, and the locking plate group drives the inner sleeve body to rotate through the locking plate pin to achieve unlocking; when the locking plate slots of all locking plates are not in a straight line, the aforementioned locking plate pin cannot be embedded in the slot.

[0013] A key for an anti-misopening idling lock cylinder lock comprises a main body and a handle connected to the rear end of the main body, wherein the main body is a flat body having wider left and right side surfaces and narrower upper and lower side surfaces, and the main body has a key card section for cooperating with a lock plate group and an extension section connected to the handle in sequence along its insertion direction, wherein the extension section is provided with a card block protruding outward on the upper side surface and / or the lower side surface at one end away from the handle portion; and a protrusion is provided at the free tail end of the main body.

[0014] As a preferred solution of the present invention, the protruding height of the card block is 0.5-1.5 mm, and the width of the card block along the insertion direction of the main body is 0.5-1.5 mm.

[0015] Compared with the prior art, the present invention has obvious advantages and beneficial effects, specifically: 1. By arranging an idler in the inner sleeve, a non-circular embedding groove or shaft hole adapted to the shape of the free tail end of the key is arranged on the end face of the idler, so that the number of key matching can be greatly increased by changing the shape of the embedding groove or shaft hole, the repetition rate of the lock is reduced, and the safety of the lock is improved; 2. By arranging an insertion and extraction area and a blocking area at the opening of the outer sleeve, the key cannot be pulled out when it is rotated to the blocking area, and can only be pulled out after the lock pieces are returned to their positions when it is rotated to the insertion and extraction area, thereby This prevents the lock from being easily opened by a wrong key after the key is pulled out, thereby improving the safety of the lock; 3. By making the distribution angle of the plug-in area 30° to 150°, the key can be rotated within a certain range after being inserted from the plug-in area, ensuring that the free tail end of the key is embedded in the groove or the shaft hole, thereby ensuring the normal opening or locking of the lock; 4. Since only a blocking portion protruding toward the center of the opening needs to be provided on the outer casing, and a card block is provided at the corresponding position of the key to limit the key from being pulled out in a specific area, the structure is simple, the production cost is low, and it is suitable for popularization and use.

[0016] In order to more clearly explain the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an assembly structure diagram of an embodiment of the present invention;

[0018] Figure 2 It is a preliminary exploded view of the internal structure of an embodiment of the present invention;

[0019] Figure 3 Schematic diagram of the opening structure of the outer casing of an embodiment of the present invention;

[0020] Figure 4 is a further exploded view of the internal structure of an embodiment of the present invention;

[0021] Figure 5 is an exploded view of the locking plate assembly structure of an embodiment of the present invention;

[0022] Figure 6 is a front view of a locking plate structure according to an embodiment of the present invention;

[0023] Figure 7 This is a diagram of a key enlargement structure in an embodiment of the present invention;

[0024] Figure 8 The key card section structure diagram of the key in the embodiment of the present invention is

[0025] Fig. 9 It is an enlarged structural diagram of the locking plate positioning sleeve of an embodiment of the present invention. DETAILED DESCRIPTION

[0026] like Figure 1-9 As shown, an anti-misoperation lock cylinder lock comprises a lock cylinder 1, wherein the lock cylinder 1 comprises an outer sleeve 10, a rotatable inner sleeve 20, a locking plate group 30 and a locking plate clamping device 40, wherein the inner sleeve 20 is rotatably installed in the outer sleeve 10, the locking plate group 30 is rotatably installed in the inner sleeve 20, the locking plate group 30 comprises a plurality of locking plates 31, and these locking plates 31 are sequentially overlapped and arranged along the key insertion direction of the inner sleeve 20, and a lock hole 32 for the key to pass through is arranged at the center of each locking plate 31.

[0027] An opening 11 for the key 7 to pass through is provided at one end of the outer casing 10. An insertion and extraction zone and a blocking zone are provided at the opening 11 along the rotation direction of the key 7. The insertion and extraction zone is for the key 7 to be inserted into or extracted from the lock hole 32, and the blocking zone restricts the key 7 from being extracted from the lock hole 32. The blocking zone is provided with a blocking portion 13 protruding toward the center of the opening 11 of the outer casing 10. The key 7 has a main body 76 and a handle 75 connected to the rear end of the main body 76. A card block 78 corresponding to the blocking portion 13 is provided at the rear end of the main body 76 along the insertion direction thereof. When the key 7 rotates to the blocking zone, the card block 78 is stuck on the inner side of the blocking portion 13. The blocking parts 13 described in the present invention are two, and the two blocking parts 13 are symmetrically distributed on both sides of the opening 11. The plug-in area includes two relatively distributed fan-shaped notches 12, and the two fan-shaped notches 12 are staggered between the two blocking parts 13. The radial distance between the two fan-shaped notches 12 is greater than the radial distance between the two blocking parts 13. The distribution angle of the fan-shaped notches 12 is 30°~150°. The line connecting the starting point A of the fan-shaped notch 12 and the center of the opening 11 is perpendicular to the clamping direction of the lock plate clamping device 40. The fan-shaped notch 12 extends from its starting point A in a counterclockwise direction. The blocking part 13 is an arc-shaped rib provided at the edge of the opening 11 of the outer shell 10. The arc-shaped rib is integrally connected to the outer shell 10, and the outer surface of the arc-shaped rib is flush with the rear end surface of the outer shell 10. The protruding distance of the arc-shaped rib along the radial direction of the opening is 0.5~1.5mm. In the present invention, the main body 76 of the key 7 is a flat body having left and right sides 701, 702 with relatively wide areas and upper and lower sides 703, 704 with relatively narrower areas. Two card blocks 78 are provided correspondingly, and the two card blocks 78 are respectively arranged on the upper side 03 and the lower side 704 of the main body 76. The card blocks 78 protrude outward from the upper side 703 and the lower side 704 of the main body 76. The protruding height of the card blocks 78 is 0.5 to 1.5 mm, and the width of the card blocks 78 along the insertion direction of the main body 76 is 0.5 to 1.5 mm.

[0028] In this embodiment, the blocking portion 13 is integrally connected to the outer shell 10. It should be understood that the blocking portion 13 can also be provided at the opening of the outer shell 10 in a separate manner; the shape and number of the blocking portion 13 and the block 78 can be set according to specific design requirements.

[0029] Combination Figure 4 , and further includes an idle member 60 for cooperating with the free tail end of the key, the end surface of the idle member 60 is provided with a non-circular embedding groove or shaft hole 61 adapted to the shape of the free tail end of the key, the idle member 60 is arranged in the inner sleeve 20, the embedding groove or shaft hole 61 is directly opposite to the key channel, and the tail of the key 7 is correspondingly provided with a convex block 77 adapted to the shape of the circular embedding groove or shaft hole, and the idle member 60 can be driven by the key to rotate relative to the inner sleeve 20. By setting the convex block 77 to cooperate with the non-circular embedding groove 61, the number of key matching numbers can be increased by changing the angle of the convex block 77.

[0030] In this embodiment, the locking plate group 30 includes six locking plates 31, and a spacer 39 is arranged between two adjacent locking plates 31 to prevent the rotation of the two adjacent locking plates 31 from interfering with each other. The six locking plates 31 have the same structure, and the outer edge of each locking plate 31 is provided with a slot 33 for cooperating with the locking plate clamping device 40, and the locking hole 32 of each locking plate 31 has left and right side walls, and the upper part of the right side wall is provided with a first driven side surface 341, a first height limiting top surface 342, a second driven side surface 351, a second height limiting top surface 352, a third driven side surface 361 and a third height limiting top surface 362, wherein the first driven side surface 341, the second driven side surface 351 and the third driven side surface 361 are staggered from front to back in the rotation direction of the locking plate, and the first height limiting top surface 342, the second height limiting top surface 352 and the third height limiting top surface 362 are staggered from high to low in the radial direction of the locking plate.

[0031] Combination Figure 6 It can be seen that the lower part of the left side wall of the lock hole 32 is also provided with a first driven side surface 341, a first height limiting top surface 342, a second driven side surface 351, a second height limiting top surface 352, a third driven side surface 361 and a third height limiting top surface 362, wherein the first driven side surface 341, the second driven side surface 351 and the third driven side surface 361 are staggered from front to back in the rotation direction of the lock plate, and the first height limiting top surface 342, the second height limiting top surface 352 and the third height limiting top surface 362 are staggered from high to low in the radial direction of the lock plate.

[0032] Combination Figure 7It can be seen that the cross-sectional shape and size of the key 7 match the shape and size of the aforementioned lock hole 32. The key 7 is provided with four tooth portions 71, 72, 73, 74 along the insertion direction thereof. The aforementioned tooth portions 71, 72, 73, 74 are vertical concave and convex high and low steps on the narrow upper side surface 703 and / or the lower side surface 704. When unlocking, each tooth portion corresponds to the position of each aforementioned locking plate 31; wherein the first tooth portion 71 corresponds to the aforementioned first locking plate 31 and the second locking plate 31, and the first tooth portion 71 has a first shifting side surface 711 that pushes against the first driven side surface 341 of the aforementioned first locking plate 31 and the second locking plate 31, and the first tooth portion 71 has a first step surface 712 that is adapted to the height of the first height-limiting top surface 342 of the aforementioned first locking plate 31 and the second locking plate 31; the second tooth portion 72 corresponds to the third locking plate and the fourth locking plate, and the second tooth portion 72 has a first step surface 712 that pushes against the first driven side surface 341 of the aforementioned third locking plate 31 and the second locking plate 31; The second driving side surface 721 of the locking plate and the second driven side surface 341 of the fourth locking plate, the second tooth portion 72 has a second step surface 722 adapted to the height of the second height limiting top surface 342 of the third locking plate and the fourth locking plate; the third tooth portion 73 corresponds to the fifth locking plate, the third tooth portion 73 has a third driving side surface 731 that pushes against the third driven side surface 351 of the fifth locking plate, and the third tooth portion 73 has a third step surface 732 adapted to the height of the third height limiting top surface 352 of the fifth locking plate; the fourth tooth portion 74 corresponds to the sixth locking plate.

[0033] Among them, the present invention can increase the number of matching numbers of the lock by changing the height and front-back order of the first tooth portion, the second tooth portion, the third tooth portion and the fourth tooth portion; more teeth can also be set to correspond to more locking plates, that is, one tooth portion can correspond to one locking plate, or it can correspond to multiple locking plates, so as to increase the number of matching numbers.

[0034] Combination Figure 4 It can be seen that the locking plate locking device 40 includes an elastic thrust device 41, a locking plate latch 42 and a limiting groove 21 arranged on the side wall of the inner sleeve 20, the limiting groove 21 radially penetrates the side wall of the inner sleeve and extends axially, the aforementioned locking plate latch 42 can be radially movably arranged in the limiting groove 21, the elastic thrust device 41 provides the locking plate latch 42 with a tendency to maintain movement along the locking direction, and the movement tendency is along the radial direction of the outer sleeve 10; a latch groove 33 is arranged on the outer ring surface of each locking plate 31; when the position arrangement of the latch grooves 33 of all locking plates 31 matches the shape of the locking plate latch 42, the aforementioned locking plate latch 42 is pushed by the elastic thrust device 41 to be embedded in the latch groove 33 of the locking plate 31, and the locking plate group 30 drives the inner sleeve 20 to rotate through the locking plate latch 42 to achieve unlocking; the locking plate latch 42 in this embodiment is a straight rod body, and of course its shape can be set to an arc, a bending body, etc. as needed. When the locking slots 33 of all the locking plates 31 are not in a straight line, the locking plate latch 42 cannot be inserted into the locking slot 33 .

[0035] The lock also includes a lock plate positioning sleeve 50, which can be used to pre-position the lock plate group 30, and limit the rotation of each lock plate 31 in the lock plate group 30 within a certain range to prevent confusion. The lock plate positioning sleeve 50 includes an end plate 51 and a cylinder 52, the end plate 51 is integrally connected to one end of the cylinder 52, a key hole 53 is provided on the end plate 51, and a key channel 54 is provided in the axial direction of the cylinder 52. The key hole 53 is connected to the key channel 54, and the key channel 54 is provided with a through groove 55 for the key to extend on both sides. The lock plate group 30 is sleeved on the outer side of the cylinder 52. When the key 7 is inserted, the positioning sleeve 50 rotates synchronously with the key 7.

[0036] Combination Figure 8 The key channel 54 in the cylinder 52 extends through the cylinder 52 in the up-down direction, so that the cylinder 52 is divided into a left half cylinder 521 and a right half cylinder 522, wherein a convex strip 56 protrudes from the upper part of the left half cylinder 521, and a guide push surface 37 is provided at the upper part of the left side wall of each locking piece 31. When unlocking, the convex strip 56 is used to act on the guide push surface 37 of each locking piece. Since the convex strip 56 is a straight strip and extends along the key insertion direction, the convex strip 56 can guide each locking piece 31 to correct the lock hole of each locking piece 31, and the locking piece 31 will not interfere with the removal of the key, so that the key can be pulled out very smoothly.

[0037] The upper portion of the right half cylinder 522 is provided with a clearance notch 57 so that the tooth-driven side surfaces 711 , 721 , 731 on the key can act on the driven side surfaces 341 , 351 , 361 of the locking plates.

[0038] An idler retaining spring 90 is disposed on the inner sleeve 20 and is clamped at the rear end of the inner sleeve.

[0039] During use, when an incorrect key is inserted, the lock plate locking device 40 is not restricted to the lock plate group 30, that is, the locking grooves 33 of each lock plate are not in a straight line, the lock plate locking pin 42 cannot sink into the lock plate locking groove 33, and the key 7 can only drive the lock plate 31 to rotate in the inner sleeve 20.

[0040] After the correct key 7 is inserted, the locking plate locking device 40 is restricted to the locking plate set 30, such as Figure 7 As shown, the key 7 rotates clockwise to smoothly push the slots 33 of the six lock plates to a straight line and rotate to the position of the lock plate pin 42, so that the lock plate pin 42 can sink into the slot 33 embedded in the lock plate, so that the key 7 can drive the inner sleeve 20 to rotate through the lock plate group 30 to unlock the lock.

[0041] As an alternative, more or fewer locking plates can be provided according to product requirements, and the structures of the locking plates in the aforementioned locking plate group can be different, that is, only the first driven side surface and the first height limiting top surface that cooperate with the first tooth portion of the key are provided on the first locking plate, and only the second driven side surface and the second height limiting top surface that cooperate with the second tooth portion of the key are provided on the second locking plate, and so on. Although the structures of the locking plates are different, functions similar to those in the aforementioned embodiments can be basically achieved, but there may be production inconveniences caused by too many locking plate styles.

[0042] In summary, the present invention focuses on:

[0043] First, by arranging an idler in the inner sleeve, and arranging a non-circular groove or shaft hole adapted to the shape of the free tail end of the key on the end face of the idler, the number of key matching can be greatly increased by changing the shape of the groove or shaft hole, the repetition rate of the lock can be reduced, and the safety of the lock can be improved;

[0044] Second, by setting the insertion and extraction area and the blocking area at the opening of the outer casing, the key cannot be pulled out when it is rotated to the blocking area. It can only be pulled out after the lock pieces return to their positions when it is rotated to the insertion and extraction area, thereby preventing the lock from being easily opened by the wrong key after the key is pulled out, thereby improving the safety of the lock;

[0045] 3. By making the distribution angle of the plug-in area 30° to 150°, the key can be rotated within a certain range after being inserted from the plug-in area, ensuring that the free tail end of the key is embedded in the groove or shaft hole, ensuring the normal opening or locking of the lock;

[0046] Fourth, since it is only necessary to set a blocking portion protruding toward the center of the opening on the outer casing and set a card block at the corresponding position of the key to prevent the key from being pulled out in a specific area, the structure is simple, the production cost is low, and it is suitable for popularization and use.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Therefore, any modification, equivalent replacement, improvement, etc. made to the above embodiment based on the technical practice of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. An anti-mistaken opening idling lock cylinder lock, comprising a lock cylinder, the lock cylinder comprising an outer sleeve, a rotatable inner sleeve, a locking plate group and a locking plate clamping device, the inner sleeve can be rotatably installed in the outer sleeve, the locking plate group can be rotatably installed in the inner sleeve, the locking plate group comprises a plurality of locking plates, which are sequentially overlapped and arranged along the key insertion direction of the inner sleeve, and the center of each locking plate is provided with a lock hole for the key to pass through; when an incorrect key is inserted, the locking plate clamping device is not restricted to the locking plate group, and the key can only drive the locking plate to idle in the inner sleeve; when a correct key is inserted, the locking plate clamping device is restricted to the locking plate group, and the key can drive the inner sleeve to rotate through the locking plate group to realize unlocking, characterized in that: It also includes an idler part arranged in the inner sleeve body, the end face of the idler part is provided with a non-circular embedding groove or axial hole adapted to the shape of the free tail end of the key, and the idler part can be driven by the key to rotate relative to the inner sleeve body; one end of the outer sleeve body is provided with an opening for the key to pass through, and the opening is provided with an insertion and extraction area and a blocking area along the rotation direction of the key. The insertion and extraction area is for the key to be inserted into or extracted from the lock hole, and the blocking area limits the key from being extracted from the lock hole. The insertion and extraction area is a fan-shaped notch distributed at the opening, and the distribution angle of the fan-shaped notch is 30°~150°.

2. The anti-misoperation lock cylinder lock according to claim 1, characterized in that: It also includes a key, wherein the blocking area is provided with a blocking portion protruding toward the opening center of the outer shell, the key has a main body and a handle portion connected to the rear end of the main body, the rear end of the main body along its insertion direction is provided with a card block corresponding to the blocking portion, when the key is rotated to the blocking area, the card block is stuck on the inner side of the blocking portion; the free tail end of the main body is provided with a protrusion corresponding to the non-circular embedding groove or shaft hole.

3. The anti-misoperation lock cylinder lock according to claim 2, characterized in that: The main body is a flat body with wider left and right sides and narrower upper and lower sides. The main body has a key card section for cooperating with the lock plate group and an extension section connected to the handle part in sequence along its insertion direction. The card block is arranged on the upper side and / or lower side of one end of the extension section away from the handle part.

4. The anti-misoperation lock cylinder lock according to claim 3, characterized in that: The card block protrudes outward from the upper side and / or lower side of the main body, the protruding height of the card block is 0.5-1.5 mm, and the width of the card block along the insertion direction of the main body is 0.5-1.5 mm.

5. The anti-misoperation lock cylinder lock according to any one of claims 2 to 4, characterized in that: The blocking portion is integrally formed and connected to the outer casing, and the outer surface of the blocking portion is flush with the rear end surface of the outer casing. The protruding distance of the blocking portion along the radial direction of the opening is 0.5 to 1.5 mm.

6. The anti-misoperation lock cylinder lock according to claim 1, characterized in that: The line connecting the starting point of the sector-shaped notch and the center of the opening is perpendicular to the locking direction of the locking plate locking device, and the sector-shaped notch extends from its starting point in a counterclockwise direction.

7. The anti-misoperation lock cylinder lock according to claim 3, characterized in that: A first driven side surface and a first height-limiting top surface are arranged on the side wall of the lock hole of at least one first locking plate, and a second driven side surface and a second height-limiting top surface are arranged on the side wall of the lock hole of at least one second locking plate, and the first driven side surface and the second driven side surface are staggered front and back in the rotation direction of the lock plate, and the first height-limiting top surface and the second height-limiting top surface are staggered in height relative to each other along the radial direction of the lock plate; the key card section of the key is provided with a plurality of teeth front and back along its insertion direction, and the aforementioned teeth are vertically concave and convex height steps on the narrower upper side surface and / or lower side surface, and each tooth corresponds to the position of each aforementioned lock plate.

8. The anti-misoperation lock cylinder lock according to claim 1, characterized in that: The locking plate locking device includes an elastic thrust device, a locking plate latch and a limiting groove arranged on the side wall of the inner sleeve body, the limiting groove radially penetrates the side wall of the inner sleeve body and extends axially, the aforementioned locking plate latch can be radially movably arranged in the limiting groove, and the elastic thrust device provides the locking plate latch with a tendency to maintain radial inward movement; a latch groove is arranged on the outer ring surface of each locking plate; when the position arrangement of the latch grooves of all locking plates matches the shape of the locking plate latch pin, the aforementioned locking plate latch pin is pushed by the elastic thrust device to be embedded in the latch groove of the locking plate, and the locking plate group drives the inner sleeve body to rotate through the locking plate latch pin to achieve unlocking; when the latch grooves of all locking plates are not in a straight line, the aforementioned locking plate latch pin cannot be embedded in the latch groove.

9. A key for preventing accidental opening of an idling lock cylinder lock, characterized in that: It includes a main body and a handle part connected to the rear end of the main body. The main body is a flat body with wider left and right sides and narrower upper and lower sides. The main body has a key card section for cooperating with a lock plate group and an extension section connected to the handle part in sequence along its insertion direction. The extension section is provided with an outwardly protruding block on the upper side and / or lower side of one end away from the handle part, and the block cooperates with a blocking part on the outer shell of the lock core that protrudes toward the center of the opening; a non-circular protrusion is provided at the free tail end of the main body.

10. The key for the anti-misoperation lock cylinder lock according to claim 9, characterized in that: The protruding height of the card block is 0.5-1.5 mm, and the width of the card block along the insertion direction of the main body is 0.5-1.5 mm.

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