CN212359368U - Anti-misopening idling lock cylinder lock - Google Patents

Abstract

The utility model discloses an anti-misopening idling lock core lockset, the lock core comprises an outer sleeve body, an inner sleeve body, a lock sheet group and a lock sheet clamping device, when a wrong key is inserted, the lock sheet clamping device is not limited to the lock sheet group, the key can only drive the lock sheet to idle in the inner sleeve body, when the right key is inserted, the lock sheet clamping device is limited to the lock sheet group, and the key can realize unlocking; the inner sleeve body is internally provided with an idling part, the end face of the idling part is provided with a non-circular caulking groove or a shaft hole, one end of the outer sleeve body is provided with an opening, the opening is provided with a plugging area and a blocking area along the rotation direction of a key, the plugging area is used for inserting or pulling out the key into or from the lock hole, and the blocking area limits the key from being pulled out of the lock hole. The plug area is arranged at the opening of the outer sleeve body, so that the key cannot be pulled out when rotating to the blocking area, and only when rotating to the plug area, each lock piece is pulled out after returning, thereby avoiding the situation that the lock is easily opened by a wrong key after the key is pulled out, and improving the safety of the lock body.

Description

Anti-misopening idling lock cylinder lock

Technical Field

The utility model relates to a tool to lock field, concretely relates to prevent mistake and open idle running lock core tool to lock.

Background

Locks are common anti-theft tools. The cylinder lock is widely used because of its simple structure and practicality. The structure of the spring lock is approximately the same, namely a group of cylindrical springs are arranged in the spring holes of the lock core, the key is provided with teeth with corresponding depth, the corresponding springs are moved up and down through the difference of the height of the teeth of the key during unlocking, so that the height of each lock core spring is positioned at the interface between the outer sleeve and the lock core, and then the key is rotated to drive the lock core, thereby achieving the purpose of unlocking. The lock has a tooth shifting channel, foreign matters can easily enter the inner end of a key hole under the condition that a marble is not touched, various unlocking tools are inserted into the tooth shifting channel to carry out technical unlocking, and the safety is poor. In view of this, people have developed the lock of idling with locking plate, and when the key channel of key and idle lock did not match, the lock core can only be in the internal idle running of overcoat, and can not realize unblanking, could drive the lock core through the locking plate and rotate when only the key matches, realized unblanking to the theftproof performance of tool to lock has effectively been promoted. However, the existing idle lock has the following disadvantages: firstly, number allocation is realized mainly through the number of key tooth sections and locking plates on the key, the number allocation is limited, the lock has high repeatability and low safety; secondly, because the key can be pulled out at any position in the rotating process, the situation that the key is directly pulled out under the condition that the locking plate is not returned easily occurs, and the wrong key can open the lock under the situation, so that the safety and the practicability of the lock are reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the disappearance that prior art exists, provide a simple structure practicality, high mistake proofing of security open idle running lock core tool to lock.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an anti-false-unlocking idling lock cylinder lock comprises a lock cylinder, wherein the lock cylinder comprises an outer sleeve body, a rotatable inner sleeve body, a lock cylinder group and a lock cylinder clamping device, the inner sleeve body is rotatably installed in the outer sleeve body, the lock cylinder group is rotatably installed in the inner sleeve body, the lock cylinder group comprises a plurality of lock cylinders, the lock cylinders are sequentially arranged in an overlapped mode along the key inserting direction of the inner sleeve body, and a lock hole for a key to pass through is formed in the center of each lock cylinder; when an incorrect key is inserted, the locking plate clamping device is not limited to the locking plate group, the key can only drive the locking plate to idle in the inner sleeve body, when the correct key is inserted, the locking plate clamping device is limited to the locking plate group, the key can drive the inner sleeve body to rotate through the locking plate group to realize unlocking, the lock further comprises an idle rotation piece arranged in the inner sleeve body, the end face of the idle rotation piece is provided with a non-circular embedded groove or shaft hole matched with the shape of the free tail end of the key, and the idle rotation piece can be driven by the key to rotate relative to the inner sleeve body; an opening for a key to pass through is formed in one end of the outer sleeve body, a plugging area and a blocking area are arranged at the opening along the rotation direction of the key, the plugging area is used for the key to be inserted into or pulled out of the lock hole, the blocking area limits the key to be pulled out of the lock hole, the plugging area is a fan-shaped notch distributed at the opening, and the distribution angle of the fan-shaped notch is 30-150 degrees.

As a preferred scheme of the utility model, the utility model further comprises a key, the blocking area is provided with a blocking part protruding towards the center of the opening of the outer sleeve body, the key is provided with a main body part and a handle part connected with the rear end of the main body part, the rear end of the main body part along the insertion direction is provided with a clamping block corresponding to the blocking part, and when the key rotates to the blocking area, the clamping block is clamped at the inner side of the blocking part; the free tail end of the main body part is provided with a convex block corresponding to the non-circular caulking groove or the shaft hole.

As a preferred scheme of the utility model, the main part is the flat body, has the wide large tracts of land left and right sides and narrower upper and lower side, the main part has the key card section that is used for assembling with the locking plate group and the extension section of being connected with handle portion along its direction of insertion in proper order, the fixture block is located the extension section and is kept away from handle portion one end and serves side and/or downside.

As the utility model discloses a preferred scheme, the fixture block is outwards protruding in the last side and/or the downside of main part, the protrusion height of fixture block is 0.5 ~ 1.5mm, the width of fixture block along main part direction of insertion is 0.5 ~ 1.5 mm.

As an optimized scheme of the utility model, the stop part is connected with outer cover body integrated into one piece, just the outside surface of stop part and the rear end face parallel and level of outer cover body, the protruding distance of stretching of stop part along open-ended radial direction is 0.5 ~ 1.5 mm.

As an optimized scheme of the utility model, the line at the starting point of fan-shaped breach and open-ended center is perpendicular with the card system direction of locking plate card system device, fan-shaped breach extends along anticlockwise from its starting point.

As a preferred scheme of the present invention, a first driven side surface and a first height-limiting top surface are disposed on a side wall of the locking hole of at least one first locking plate, a second driven side surface and a second height-limiting top surface are disposed on a side wall of the locking hole of at least one second locking plate, and the first driven side surface and the second driven side surface are staggered from front to 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 from each other in the radial direction of the locking plate; the key card section of key is provided with a plurality of tooth portions along its direction of insertion front and back, and aforesaid tooth portion is the perpendicular unsmooth height step on narrower upper flank and/or the downside, and each tooth portion corresponds with aforesaid each lock piece position.

As a preferred embodiment of the present invention, the locking plate locking device comprises an elastic thrust device, a locking plate bayonet lock and a limiting groove disposed on the side wall of the inner sleeve, the limiting groove radially penetrates through the side wall of the inner sleeve and axially extends, the locking plate bayonet lock can be radially and movably disposed in the limiting groove, and the elastic thrust device provides the locking plate bayonet lock with a tendency of moving radially inward; a clamping groove is formed in the outer ring surface of each locking plate; when the position arrangement of the clamping grooves of all the locking plates is matched with the shape of the locking plate clamping pins, the locking plate clamping pins are pushed by an elastic thrust device to be embedded into the clamping grooves of the locking plates, and the locking plate group drives the inner sleeve body to rotate through the locking plate clamping pins to realize unlocking; when the locking grooves of all the locking plates are not in a straight line, the locking pins of the locking plates cannot be embedded into the locking grooves.

A key of an anti-false-unlocking idle lock cylinder lock comprises a main body part and a handle part connected to the rear end of the main body part, wherein the main body part is a flat body and is provided with left and right side surfaces with a large area and narrower upper and lower side surfaces; the free tail end of the main body part is provided with a lug.

As an optimized scheme of the utility model, the protrusion height of fixture block is 0.5 ~ 1.5mm, the fixture block is 0.5 ~ 1.5mm along the width of main part direction of insertion.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly: 1. The idle rotation piece is arranged in the inner sleeve body, and the end face of the idle rotation piece is provided with the non-circular caulking groove or the shaft hole matched with the shape of the free tail end of the key, so that the number matching quantity of the key can be greatly increased by changing the shape of the caulking groove or the shaft hole, the repetition rate of the lockset is reduced, and the use safety of the lockset is improved; 2. the inserting and pulling area and the blocking area are arranged at the opening of the outer sleeve body, so that the lock cannot be pulled out when the key rotates to the blocking area, and only when the key rotates to the inserting and pulling area, each lock piece is pulled out after returning to the original position, thereby avoiding the condition that the lock is easily opened by an error key after the key is pulled out, and improving the safety of the lock; 3. the distribution angle of the plugging area is 30-150 degrees, so that the key can rotate in a certain range after being inserted from the plugging area, the free tail end of the key is ensured to be embedded into the caulking groove or the shaft hole, and the normal opening or locking of the lockset is ensured; 4. The outer sleeve body is provided with the blocking part protruding towards the center of the opening, and the corresponding position of the key is provided with the clamping block, so that the key can be limited from being pulled out of a specific area.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is an assembly diagram of an embodiment of the present invention;

FIG. 2 is a preliminary exploded view of the internal structure of an embodiment of the present invention;

fig. 3 is a schematic view of an opening structure of an outer casing according to an embodiment of the present invention;

fig. 4 is a further exploded view of the internal structure of an embodiment of the invention;

fig. 5 is an exploded view of the locking plate assembly according to the embodiment of the present invention;

fig. 6 is a front view of the locking plate structure according to the embodiment of the present invention;

FIG. 7 is an enlarged view of a key according to an embodiment of the present invention;

FIG. 8 is a diagram of a key fob section of a key in an embodiment of the invention

Fig. 9 is an enlarged view of the locking plate positioning sleeve according to the embodiment of the present invention.

Detailed Description

As shown in fig. 1-9, an anti-false-unlocking idling lock cylinder lock comprises a lock cylinder 1, wherein the lock cylinder 1 comprises an outer sleeve 10, a rotatable inner sleeve 20, a lock plate group 30 and a lock plate clamping device 40, the inner sleeve 20 is rotatably installed in the outer sleeve 10, the lock plate group 30 is rotatably installed in the inner sleeve 20, the lock plate group 30 comprises a plurality of lock plates 31, the lock plates 31 are sequentially arranged in an overlapped manner along a key insertion direction of the inner sleeve 20, and a lock hole 32 for a key to pass through is formed in the center of each lock plate 31.

An opening 11 for the key 7 to pass through is formed in one end of the outer sleeve 10, a plugging area and a blocking area are formed in the position of the opening 11 along the rotation direction of the key 7, the plugging area is used for the key 7 to be inserted into or pulled out of the lock hole 32, and the blocking area limits the key 7 to be pulled out of the lock hole 32. The blocking area is provided with a blocking part 13 protruding towards the center of the opening 11 of the outer sleeve body 10, the key 7 is provided with a main body part 76 and a handle part 75 connected to the rear end of the main body part 76, the rear end of the main body part 76 along the insertion direction is provided with a clamping block 78 corresponding to the blocking part 13, and when the key 7 rotates to the blocking area, the clamping block 78 is clamped on the inner side of the blocking part 13. In the utility model, the two blocking parts 13 are symmetrically distributed at both sides of the opening 11, the plugging area comprises two fan-shaped notches 12 which are distributed oppositely, and the two fan-shaped gaps 12 are distributed between the two blocking parts 13 in a staggered way, the radial distance of the two fan-shaped gaps 12 is larger than that of the two blocking parts 13, the distribution angle of the fan-shaped notch 12 is 30-150 degrees, the connecting line of the starting point A of the fan-shaped notch 12 and the center of the opening 11 is vertical to the clamping direction of the locking plate clamping device 40, the fan-shaped notch 12 extends from the starting point A along the counterclockwise direction, the blocking portion 13 is an arc-shaped flange arranged at the edge of the opening 11 of the outer sleeve 10, the arc-shaped flange is integrally connected with the outer sleeve 10, and the outer side surface of the arc-shaped flange is flush with the rear end face of the outer sleeve body 10, and the protruding distance of the arc-shaped flange along the radial direction of the opening is 0.5-1.5 mm. The utility model discloses in, main part 76 of key 7 is the flat body, has the wide large area side 701, 702 and narrower upper and lower side 703, 704 about, the fixture block 78 correspondence is equipped with two, and the side 03 and the downside 704 that go up of main part 76 are located respectively to two fixture blocks 78, the outside protrusion of fixture block 78 is in the side 703 and the downside 704 that go up of main part 76, the bulge height of fixture block 78 is 0.5 ~ 1.5mm, fixture block 78 is 0.5 ~ 1.5mm along the width of main part 76 direction of insertion.

In this embodiment, the blocking portion 13 is integrally formed with the outer casing 10, and it should be understood that the blocking portion 13 may also be separately disposed at the opening of the outer casing 10; the shapes and the numbers of the blocking parts 13 and the latch blocks 78 can be set according to specific design requirements.

With reference to fig. 4, the key device further comprises an idle rotation member 60 used for being matched with the free tail end of the key, a non-circular caulking groove or shaft hole 61 matched with the shape of the free tail end of the key is arranged on the end face of the idle rotation member 60, the idle rotation member 60 is arranged in the inner sleeve body 20, the caulking groove or shaft hole 61 is right opposite to the key channel, a protruding block 77 matched with the shape of the circular caulking groove or shaft hole is correspondingly arranged at the tail of the key 7, and the idle rotation member 60 can be driven by the key to rotate relative to the inner sleeve body 20. By providing the engagement of the projection 77 with the non-circular groove 61, the number of matches of the key can be increased by changing the angle of the projection 77.

In the embodiment, the locking plate set 30 includes six locking plates 31, and a spacer 39 is disposed between two adjacent locking plates 31 to prevent the rotation of two adjacent locking plates 31 from interfering with each other. These six locking pieces 31's structure is the same, every locking piece 31 outside edge is provided with and is used for the draw-in groove 33 with locking piece clamping device 40 complex, every locking hole 32 of locking piece 31 has left and right sides wall, the upper portion of right side wall is provided with first driven side 341, first limit for height top surface 342, second driven side 351, second limit for height top surface 352, third driven side 361 and third limit for height top surface 362, wherein, first driven side 341, second driven side 351 and third driven side 361 are in proper order in the past backward dislocation set on the direction of rotation of locking piece, first limit for height top surface 342, second limit for height top surface 352 and third limit for height top surface 362 are in proper order along the radial from high to low dislocation set of locking piece.

As can be seen from fig. 6, the lower portion of the left side wall of the locking 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 sequentially arranged from front to back in a staggered manner 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 sequentially arranged from high to low in a staggered manner in the radial direction of the locking plate.

As can be seen from fig. 7, the key 7 has a cross section having a shape and size matching those of the key hole 32, and four teeth 71, 72, 73, and 74 are provided in the front and rear of the key 7 in the insertion direction, and the teeth 71, 72, 73, and 74 are formed as steps having vertically concave and convex shapes on the upper side 703 and/or the lower side 704, which are narrow. When unlocking, each tooth part corresponds to the position of each locking plate 31; the first tooth portion 71 is correspondingly matched with the first locking piece 31 and the second locking piece 31, the first tooth portion 71 has a first toggle side surface 711 which pushes against the first driven side surface 341 of the first locking piece 31 and the second locking piece 31, and the first tooth portion 71 has a first step surface 712 which is matched with the height of the first height-limiting top surface 342 of the first locking piece 31 and the second locking piece 31; the second tooth portion 72 is correspondingly matched with the third locking plate and the fourth locking plate, the second tooth portion 72 has a second toggle side surface 721 for pushing against the second driven side surface 341 of the third locking plate and the fourth locking plate, and 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 is correspondingly matched with the fifth lock plate, the third tooth portion 73 has a third toggle side 731 for pushing against the third driven side 351 of the fifth lock 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 lock plate; the fourth tooth 74 is correspondingly engaged with the sixth locking tab.

The number allocation quantity of the lockset can be increased by changing the height and the front-back sequence of the first tooth part, the second tooth part, the third tooth part and the fourth tooth part; more tooth parts can be arranged to correspond to more lock plates, namely one tooth part can correspond to one lock plate and also can correspond to a plurality of lock plates, so that more number of matched numbers can be increased.

As can be seen from fig. 4, the locking plate locking device 40 includes an elastic pushing device 41, a locking plate locking pin 42 and a limiting groove 21 disposed on the sidewall of the inner sleeve 20, the limiting groove 21 radially penetrates the sidewall of the inner sleeve and axially extends, the locking plate locking pin 42 is radially movably disposed in the limiting groove 21, the elastic pushing device 41 provides a tendency of the locking plate locking pin 42 to move along the locking direction, the moving tendency is along the radial direction of the outer sleeve 10; a clamping groove 33 is formed in the outer annular surface of each locking piece 31; when the positions of the locking grooves 33 of all the locking plates 31 are arranged and matched with the shapes of the locking plate locking pins 42, the locking plate locking pins 42 are pushed by the elastic thrust device 41 to be embedded into the locking grooves 33 of the locking plates 31, and the locking plate group 30 drives the inner sleeve body 20 to rotate through the locking plate locking pins 42 to realize unlocking; the locking plate locking pin 42 in this embodiment is a straight rod, but of course, the shape thereof may be set to be an arc, a bent body, or the like as required. When the lock grooves 33 of all the lock pieces 31 are not aligned, the aforementioned lock piece lock pin 42 cannot be fitted into the lock groove 33.

The lockset also comprises a locking plate positioning sleeve 50, and the locking plate positioning sleeve 50 can be used for pre-positioning the locking plate group 30 and limiting each locking plate 31 in the locking plate group 30 to rotate in a certain range, so that disorder is avoided. The locking plate positioning sleeve 50 comprises an end plate 51 and a barrel 52, the end plate 51 is integrally connected to one end of the barrel 52, a key hole 53 is formed in the end plate 51, a key channel 54 is arranged in the axial direction of the barrel 52, the key hole 53 is communicated with the key channel 54, a through groove 55 for extending out of two sides of a key is formed in the key channel 54, and the locking plate group 30 is sleeved on the outer side of the barrel 52. When the key 7 is inserted, the positioning sleeve 50 rotates synchronously with the key 7.

Referring to fig. 8, the key channel 54 in the cylinder 52 extends through the cylinder 52 in the vertical direction, so that the cylinder 52 is divided into a left half cylinder 521 and a right half cylinder 522, wherein a protrusion 56 protrudes from the upper portion of the left half cylinder 521, and a guiding and pushing surface 37 is provided corresponding to the upper portion of the left side wall of each lock piece 31, so that during unlocking, the protrusion 56 acts on the guiding and pushing surface 37 of each lock piece, and since the protrusion 56 is straight and extends along the key insertion direction, the protrusion 56 can guide each lock piece 31, so as to align the keyhole of each lock piece 31, the lock piece 31 will not interfere with the key extraction, and the key can be extracted very smoothly.

Wherein, the upper part of the right cylinder 522 is provided with a relief notch 57 so that the poking side surfaces 711, 721 and 731 of each tooth part on the key can act on the driven side surfaces 341, 351 and 361 of each locking plate.

The inner sleeve 20 is provided with an idling part clamp spring 90, and the idling part clamp spring 90 is clamped at the tail end of the inner sleeve.

When the key is inserted incorrectly, the locking plate clamping device 40 is not limited to the locking plate set 30, that is, the locking grooves 33 of the locking plates are not on a straight line, the locking plate clamping pin 42 cannot sink into the locking groove 33 of the locking plate, and the key 7 can only drive the locking plate 31 to idle in the inner sleeve body 20.

After the correct key 7 is inserted, the locking plate clamping device 40 is limited to the locking plate set 30, as shown in fig. 7, the key 7 rotates clockwise, the clamping grooves 33 of six locking plates can be smoothly pushed to a straight line, and the locking plate clamping pin 42 is rotated to the position where the locking plate clamping pin 42 is located, so that the locking plate clamping pin 42 can sink to the clamping groove 33 embedded in the locking plate, and the key 7 can drive the inner sleeve body 20 to rotate through the locking plate set 30 to realize unlocking.

As an alternative, more or fewer lock plates may be provided according to the product requirements, and the structures of the lock plates in the lock plate group are different, that is, only the first lock plate is provided with the first driven side surface and the first height limiting top surface which are matched with the first tooth portion of the key, and only the second lock plate is provided with the second driven side surface and the second height limiting top surface which are matched with the second tooth portion of the key, so as to analogize the above.

To sum up, the utility model discloses a focus lies in:

firstly, the idle rotation part is arranged in the inner sleeve body, and the end face of the idle rotation part is provided with the non-circular caulking groove or the shaft hole matched with the shape of the free tail end of the key, so that the number matching quantity of the key can be greatly increased by changing the shape of the caulking groove or the shaft hole, the repetition rate of the lockset is reduced, and the use safety of the lockset is improved;

secondly, the plugging area and the blocking area are arranged at the opening of the outer sleeve body, so that the lock cannot be pulled out when the key rotates to the blocking area, and only when the key rotates to the plugging area, each lock piece is pulled out after returning to the original position, thereby avoiding the situation that the lock is easily opened by an error key after the key is pulled out, and improving the safety of the lock;

thirdly, the distribution angle of the plugging area is 30-150 degrees, so that the key can rotate within a certain range after being inserted from the plugging area, the free tail end of the key is ensured to be embedded into the caulking groove or the shaft hole, and the normal opening or locking of the lockset is ensured;

and fourthly, the blocking part protruding towards the center of the opening is arranged on the outer sleeve body, and the clamping block is arranged at the corresponding position of the key, so that the key can be limited from being pulled out in a specific area.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, so any modifications, equivalent replacements, improvements, etc. made to the above embodiments by the technology of the present invention are all within the scope of the technical solution of the present invention.

Claims (8)

1. An anti-false-unlocking idling lock cylinder lock comprises a lock cylinder, wherein the lock cylinder comprises an outer sleeve body, a rotatable inner sleeve body, a lock cylinder group and a lock cylinder clamping device, the inner sleeve body is rotatably installed in the outer sleeve body, the lock cylinder group is rotatably installed in the inner sleeve body, the lock cylinder group comprises a plurality of lock cylinders, the lock cylinders are sequentially arranged in an overlapped mode along the key inserting direction of the inner sleeve body, and a lock hole for a key to pass through is formed in the center of each lock cylinder; when the incorrect key is inserted, the locking plate clamping device is not limited to the locking plate group, the key can only drive the locking plate to idle in the inner sleeve body, when the correct key is inserted, the locking plate clamping device is limited to the locking plate group, and the key can drive the inner sleeve body to rotate through the locking plate group to realize unlocking, which is characterized in that:

the key is arranged in the inner sleeve body, the end face of the idle rotation piece is provided with a noncircular caulking groove or a shaft hole matched with the free tail end of the key in shape, and the idle rotation piece 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 a key to pass through, the opening is provided with a plugging area and a blocking area along the rotation direction of the key, the plugging area is used for the key to be inserted into or pulled out of the lock hole, the blocking area is used for limiting the key to be pulled out of the lock hole, the plugging area is a fan-shaped notch distributed at the opening, and the distribution angle of the fan-shaped notch is 30 degrees⁰～150⁰。

2. The anti-false-unlocking idle-run lock cylinder lock according to claim 1, characterized in that: the key is provided with a main body part and a handle part connected to the rear end of the main body part, the rear end of the main body part along the insertion direction of the main body part is provided with a clamping block corresponding to the blocking part, and when the key rotates to the blocking area, the clamping block is clamped on the inner side of the blocking part; the free tail end of the main body part is provided with a convex block corresponding to the non-circular caulking groove or the shaft hole.

3. The anti-false-unlocking idle-run lock cylinder lock according to claim 2, characterized in that: the main part is the flat body, has the left and right sides of broad large tracts of land and narrower upper and lower side, the main part has the key card section that is used for cooperating with the locking plate group and the extension section of being connected with handle portion in proper order along its direction of insertion, the fixture block is located the extension section and is kept away from handle portion one end upper flank and/or downside.

4. The anti-false-unlocking idle-run lock cylinder lock according to claim 3, characterized in that: the fixture block outwards protrudes from the upper side face and/or the lower side face of the main body part, the protruding height of the fixture block is 0.5-1.5 mm, and the width of the fixture block in the insertion direction of the main body part is 0.5-1.5 mm.

5. The anti-false-unlocking idle lock cylinder lock according to any one of claims 2 to 4, characterized in that: the blocking portion is connected with the outer sleeve body in an integrated forming mode, the outer side surface of the blocking portion is flush with the rear end face of the outer sleeve body, and the protruding extending distance of the blocking portion in the radial direction of the opening is 0.5-1.5 mm.

6. The anti-false-unlocking idle-run lock cylinder lock according to claim 1, characterized in that: the connection line of the starting point of the fan-shaped notch and the center of the opening is vertical to the clamping direction of the locking plate clamping device, and the fan-shaped notch extends from the starting point of the fan-shaped notch along the anticlockwise direction.

7. The anti-false-unlocking idle-run lock cylinder lock according to claim 3, characterized in that: the side wall of the lock hole of at least one first lock plate is provided with a first driven side surface and a first height limiting top surface, the side wall of the lock hole of at least one second lock plate is provided with a second driven side surface and a second height limiting top surface, the first driven side surface and the second driven side surface are staggered from front to 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 from height to height along the radial direction of the lock plate; the key card section of key is provided with a plurality of tooth portions along its direction of insertion front and back, and aforesaid tooth portion is the perpendicular unsmooth height step on narrower upper flank and/or the downside, and each tooth portion corresponds with aforesaid each lock piece position.

8. The anti-false-unlocking idle-run lock cylinder lock according to claim 1, characterized in that: the locking plate clamping device comprises an elastic thrust device, a locking plate clamping pin and a limiting groove arranged on the side wall of the inner sleeve body, the limiting groove radially penetrates through the side wall of the inner sleeve body and axially extends, the locking plate clamping pin can be radially and movably arranged in the limiting groove, and the elastic thrust device provides the locking plate clamping pin with a tendency of radially and inwardly moving; a clamping groove is formed in the outer ring surface of each locking plate; when the position arrangement of the clamping grooves of all the locking plates is matched with the shape of the locking plate clamping pins, the locking plate clamping pins are pushed by an elastic thrust device to be embedded into the clamping grooves of the locking plates, and the locking plate group drives the inner sleeve body to rotate through the locking plate clamping pins to realize unlocking; when the locking grooves of all the locking plates are not in a straight line, the locking pins of the locking plates cannot be embedded into the locking grooves.

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