Steering lock with ignition switch for automobile

Abstract

The steering lock comprises a key, a lock cylinder, a lock shell, a switch panel, a protection assembly, a visual indicating piece and a light-transmitting panel, the visual indicating piece is arranged on the switch panel, a lamp holder of the visual indicating piece is connected with a mounting shell through a quick disassembly device with an inclined guide face, and quick assembly and stable fixation are achieved; a limiting piece of the protection assembly is matched with a guide groove, mechanical limiting is conducted during locking to slow down the rotating speed of a lock cylinder so as to reduce current impact, guiding is smooth and not blocked during starting, a light-transmitting panel is fixed to a limiting plate through a buckle, and the protection, light transmitting and decoration functions are achieved. Long-term stability and convenient maintenance are guaranteed through structural protection and quick release design, driving safety, circuit protection and operation experience are considered, and the system is suitable for new energy electric vehicles and traditional fuel vehicles and wide in application prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vehicle-mounted switch, in particular to a steering lock with ignition switch for automobile. BACKGROUND

[0002] Ignition switch is the core control component of automobile electrical system, which usually has LOCK gear (locking gear, key insertion and removal position, circuit is closed and steering wheel is locked), ACC gear (accessory gear, power supply for vehicle-mounted accessories), ON gear (working gear, vehicle electrical system power supply) and START gear (start gear, drive start motor) four core gears, and the safety and convenience of gear switching directly affect driving safety and electrical system stability.

[0003] In the prior art, there are two key technical problems in automobile ignition switch: on the one hand, some traditional ignition switches allow the key to be directly rotated from the ACC gear to the LOCK gear, if the driver accidentally touches the key during driving, it will cause the vehicle circuit to be suddenly closed and the steering wheel to be locked, which will cause major driving safety hazards; on the other hand, whether it is a traditional fuel car or a new energy electric car, the driver often quickly rotates the lock core when locking due to impulsive operation, which causes the locking circuit to generate a transient current impact, which easily damages sensitive electrical components such as battery management system, motor controller and charging module, and the smoothness of gear switching during starting process needs to be ensured to avoid operation lag affecting driving experience.

[0004] To solve the first safety hazard, there are related improvement schemes in the prior art, for example, the Chinese utility model patent with the authorization announcement number CN209526041U discloses an automobile ignition switch, which realizes the pressing unlocking function of ACC gear to LOCK gear by setting the lock core, the blocking mechanism and the boss structure - the lock core outside is provided with a boss, the blocking mechanism is abutted to the outer side surface of the lock core, when the lock core rotates from the ACC gear to the LOCK gear, the blocking mechanism will block the boss, the lock core needs to be pushed to slide to the direction of the converter to avoid the block, and then the gear switching is completed, which effectively prevents the accidental operation during driving.

[0005] However, the above prior art still has obvious functional limitations:

[0006] It lacks visual guidance mechanism, and it is difficult to quickly identify the pressing unlocking force point and operation steps when the driving cabin light is complex or the driver is not skilled. UTILITY MODEL CONTENT

[0007] The utility model aims at solving one of the technical problems in the prior art.

[0008] The application provides a steering lock with ignition switch for automobile, which comprises a key, a lock cylinder, a lock cylinder sleeve, a lock shell, a switch panel and a protection assembly, and further comprises a visual indicator for guiding an operator to identify the switch panel, which comprises a mounting shell fixed on the switch panel and a light emitting component, and the bottom of the mounting shell is provided with a lamp holder for mounting the light emitting component through a quick release device.

[0009] The quick release device comprises a through slot, an insertion block and a limiting surface, the through slot is arranged on the bottom of the mounting shell and is provided with a notch on the peripheral wall, and the insertion block and the limiting surface are arranged on the lamp holder; during installation, the lamp holder is inserted into the mounting shell from the through slot, the insertion block is inserted through the notch, and the limiting surface is attached to the outer wall of the bottom of the mounting shell; the lamp holder is rotated to make the insertion block dislocated from the notch and attached to the inner wall of the bottom of the mounting shell, and the installation is completed.

[0010] The quick release device further comprises a convex rib, which is fixed on the bottom of the mounting shell along the edge of the through slot, has an inclined end and a clamping groove in the middle, and is used for guiding the insertion block to enter the clamping groove.

[0011] The bottom end of the insertion block in the direction of insertion into the through slot is provided with an inclined guide surface, which is used for guiding the insertion block to slide into the clamping groove along the inclined end of the convex rib.

[0012] The application further comprises a light-transmitting panel, which is detachably installed on the switch panel and has an extension plate for shielding the open end of the mounting shell.

[0013] The application further comprises a limiting plate, a buckle and a limiting shell, the limiting plate is fixed on the switch panel, the limiting shell is fixed on the light-transmitting panel and is clamped with the limiting plate to limit the circumferential movement of the light-transmitting panel, and the buckle is used for limiting the axial movement of the light-transmitting panel.

[0014] The application further comprises a lens arranged on the bottom surface of the extension plate.

[0015] The bottom surface of the light-transmitting panel is provided with a decorative pattern.

[0016] The protection assembly comprises a limiting piece and a guide groove, the limiting piece is radially floatingly inserted into the lock cylinder sleeve, and the guide groove is circumferentially recessed on the outer wall of the lock cylinder; when the lock cylinder is rotated from the working position to the off position, the guide groove cooperates with the limiting piece to limit the rotation of the lock cylinder, and this limitation can only be removed by axially moving the lock cylinder.

[0017] The limiting piece comprises a mounting groove, a buckle and a torsional spring, the mounting groove is arranged on the lock cylinder sleeve, one end of the buckle is rotatably arranged in the mounting groove through a rotating shaft, the other end of the buckle is bent to form a cooperating end and can be inserted into the guide groove, and the torsional spring is sleeved on the rotating shaft and is used for keeping the cooperating end of the buckle in the tendency of being inserted into the guide groove.

[0018] The beneficial effects of the application are as follows:

[0019] The visual guide improves operation accuracy and optimizes driving experience. The visual indicator clearly indicates the position of the switch panel and the pressing force point through the light-emitting component, solves the pain point of lack of operation guide and easy misoperation in complex light in the prior art, and the stable light emission can guide the driver to calmly complete the step-by-step operation of "rotating to the limit position, pressing the unlock, and continuing to rotate to the off", thereby improving the operation accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a stereogram of the steering lock with the ignition switch for the automobile in the embodiment of the present application;

[0021] Figure 2 It is a stereogram of the steering lock with the ignition switch for the automobile in the embodiment of the present application (without the light-transmitting panel);

[0022] Figure 3 It is a stereogram of the steering lock with the ignition switch for the automobile in the embodiment of the present application (without the light-transmitting panel and the lamp holder);

[0023] Figure 4 It is a stereogram of the lamp holder in the embodiment of the present application;

[0024] Figure 5 It is a stereogram of the light-transmitting panel in the embodiment of the present application;

[0025] Figure 6 It is a sectional view of the steering lock with the ignition switch for the automobile in the embodiment of the present application;

[0026] Figure 7 It is a sectional view of the steering lock with the ignition switch for the automobile in the embodiment of the present application; Figure 6

[0027] It is a sectional view of the steering lock with the ignition switch for the automobile in the embodiment of the present application (without the lock shell); Figure 8

[0028] It is a sectional view of the steering lock with the ignition switch for the automobile in the embodiment of the present application (without the lock shell and the lock core sleeve); Figure 9 REFERENCE NUMERALS

[0029]

[0030] ​1 - key, 2 - lock cylinder, 3 - lock cylinder cover, 4 - lock shell, 5 - switch panel, 6 - protection assembly, 61 - limiting piece, 611 - mounting groove, 612 - buckle plate, 613 - torsion spring, 614 - rotating shaft, 615 - matching end, 62 - guide groove, 621 - lower section groove, 622 - upper section groove, 623 - limiting block, 6231 - inclined surface, 6232 - non-inclined surface, 7 - visual indication piece, 71 - mounting shell, 72 - lamp holder, 73 - quick release device, 731 - through groove, 732 - insertion block, 733 - limiting surface, 734 - missing groove, 735 - protruding rib, 736 - clamping groove, 8 - light transmission panel, 81 - extension plate, 82 - limiting plate, 83 - clasp piece, 84 - limiting shell, 85 - lens, 86 - decorative pattern. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0032] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of a kind and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in a "or" relationship.

[0033] The automobile steering lock with ignition switch provided by the embodiments of the present application will be described in detail below with reference to the drawings and specific embodiments and their application scenarios.

[0034] Embodiment 1:

[0035] The embodiments of the present application provide an automobile steering lock with ignition switch, which comprises a key 1, a lock cylinder 2, a lock cylinder cover 3, a lock shell 4, a switch panel 5 and a protection assembly 6, and further comprises a visual indication piece 7 arranged on the switch panel 5 and used for guiding an operator to identify the switch panel 5.

[0036] In this embodiment of the present application, the visual indication piece 7 comprises a mounting shell 71, a lamp holder 72 and a light emitting component (preferably an LED lamp bead), the mounting shell 71 is fixedly arranged on the switch panel 5 and has an open outer end, and the bottom of the mounting shell 71 is provided with the lamp holder 72 through a quick release device 73, and the lamp holder 72 is used for mounting the light emitting component.

[0037] As Figures 1 to 9 shown, due to the adoption of the above structure, the core value of the visual indicator 7 lies in assisting the driver to accurately complete the "press to lock" operation: when the light in the electric vehicle cabin is complex, the light-emitting component clearly indicates the position of the switch panel 5 and the pressing unlocking force point through the light-transmitting structure, avoiding the driver from twisting the lock cylinder 2 due to unclear operation position; at the same time, the stable light emission of the visual indicator 7 can guide the driver to calmly perform the step-by-step operation of "first rotating to the limit position, then pressing to unlock, and finally continuing to rotate to the off position", reducing the rapid locking caused by operation panic, thereby reducing the current impact risk. For the starting process (the lock cylinder 2 rotates from the off position to the working position), the visual indicator 7 can also clearly guide the operation, ensuring that the driver quickly completes the unobstructed starting action, taking into account circuit protection and driving convenience.

[0038] Embodiment 2

[0039] In this embodiment, in addition to including the structural features of the foregoing embodiment 1, the quick release device 73 includes a through slot 731, an insertion block 732, and a limiting surface 733. The through slot 731 is provided at the bottom of the mounting shell 71, and a missing slot 734 is provided on the peripheral wall thereof. The insertion block 732 and the limiting surface 733 are both provided on the lamp holder 72. During installation, the lamp holder 72 extends into the mounting shell 71 from the through slot 731, the insertion block 732 enters through the missing slot 734, and the limiting surface 733 is attached to the outer wall of the bottom of the mounting shell 71. By rotating the lamp holder 72 by a predetermined angle to make the insertion block 732 misaligned with the missing slot 734 and attached to the inner wall of the bottom of the mounting shell 71, the installation is completed.

[0040] In this embodiment of the application, the quick release device 73 further includes a protruding rib 735 extending along the edge of the through slot 731 and fixedly provided at the bottom of the mounting shell 71. One end of the protruding rib 735 is inclined, and the middle part thereof has a clamping slot 736 for guiding the insertion block 732 to slide into the clamping slot 736 along the inclined end to achieve clamping.

[0041] In this embodiment of the application, the top end and the bottom end of the insertion block 732 in the direction of insertion into the through slot 731 are both provided with inclined guide surfaces. The inclined guide surface at the top end of the insertion block 732 is used to guide the smooth passage of the insertion block 732 through the through slot 731, and the inclined guide surface at the bottom end of the insertion block 732 is used to guide the insertion block 732 to slide into the clamping slot 736 along the inclined end of the protruding rib 735.

[0042] As Figures 2 to 4As shown, due to the aforementioned structure, the reliable performance of the quick-release device 73 ensures the long-term stable operation of the visual indicator 7: through the cooperation of "through slot 731-insert block 732-slot 736", the lamp holder 72 is firmly connected to the mounting shell 71, and even if the tram is bumpy while traveling, the light-emitting components will not fail due to loosening. This means that when locking, the driver can always accurately perform the "press to unlock" step through clear visual indication, avoiding hasty operations caused by unclear indication; at the same time, the design of the quick-release device 73 facilitates the maintenance and replacement of the light-emitting components in the later stage, ensuring the continuous effectiveness of the visual guidance function, indirectly maintaining the operating rhythm of "locking buffer, starting smoothly", and reducing the impact of current surges on the tram's electrical components (such as charging modules and lighting control systems).

[0043] Example 3

[0044] In this embodiment, in addition to the structural features of the aforementioned embodiment 2, a light-transmitting panel 8 is also included, which is detachably mounted on the switch panel 5 and has an extension plate 81 for shielding the open end of the mounting housing 71.

[0045] In this embodiment of the application, a limiting plate 82, a fastener 83, and a limiting shell 84 are also included. The limiting plate 82 is fixed to the switch panel 5, and the limiting shell 84 is fixed to the light-transmitting panel 8 and engages with the limiting plate 82 to limit the circumferential movement of the light-transmitting panel 8. The fastener 83 is used to limit the axial movement of the light-transmitting panel 8. The fastener 83 is elastically connected to the light-transmitting panel 8, and its free end is provided with a hook that can be engaged with the edge of the switch panel 5 to achieve axial positioning.

[0046] In this embodiment of the application, a lens 85 and a decorative pattern 86 are also included. The lens 85 is disposed on the bottom surface of the extension plate 81 to converge light and enhance the clarity of the indicator. The decorative pattern 86 is disposed on the bottom surface of the light-transmitting panel 8 to improve the appearance without affecting the light transmission.

[0047] like Figures 2 to 7 As shown, due to the aforementioned structure, the light-transmitting panel 8 has a dual core function: on the one hand, it protects the light-emitting components inside the mounting housing 71 from dust and moisture corrosion during tram operation, ensuring the clarity of the visual indicator 7 and assisting the driver in accurately completing the pressing and unlocking actions when locking; on the other hand, it is firmly fixed by the limiting plate 82 and the fastener 83, preventing it from shifting or blocking light when the vehicle vibrates, ensuring that the driver can quickly identify the switch position and smoothly complete the unobstructed rotation operation during startup. In addition, the detachable design of the light-transmitting panel 8 facilitates the maintenance of internal components, ensuring the long-term effectiveness of the functions of "guiding precise operation to buffer current when locking and not interfering with smooth operation when starting," providing continuous protection for the tram's electrical system.

[0048] Example 4

[0049] In this embodiment, in addition to comprising the structural features of the preceding embodiment 3, the protection assembly 6 comprises a limiting member 61 and a guide groove 62, the limiting member 61 is radially floatingly installed in the lock cylinder sleeve 3, and the guide groove 62 is recessed on the outer wall of the lock cylinder 2 in the circumferential direction. When the lock cylinder 2 rotates from the working position to the off position, the guide groove 62 cooperates with the limiting member 61 to limit the rotation of the lock cylinder 2, and this limitation can only be removed by moving the lock cylinder 2 axially.

[0050] As Figures 6 to 9 shown, due to the adoption of the above structure, the core function of the protection assembly 6 is to adapt to the driver's operation logic, taking into account circuit protection and operation convenience: when the driver operates the lock cylinder 2 to rotate from the working position to the off position, the cooperation of the guide groove 62 and the limiting member 61 will form a mechanical block (specifically, the contact between the limiting member 61 and the non-inclined surface 6232 of the limiting block 623 in the subsequent embodiment 5), which forcibly slows down the rotation speed of the lock cylinder 2, avoiding the instantaneous current impact on the air conditioner, vehicle computer and other electrical appliances of the electric car caused by the rapid operation of the lock cylinder 2; and the removal of this limitation requires the axial movement (such as the pressing action) of the lock cylinder 2, which further slows down the locking process and makes the current change more gentle. Conversely, when the lock cylinder 2 rotates from the off position to the working position, the cooperation design of the guide groove 62 and the limiting member 61 (such as the smooth guidance of the inclined surface 6231) will not form an obstacle, ensuring convenient and efficient starting operation, which not only protects the circuit system of the electric car, but also does not affect the driving efficiency.

[0051] Embodiment 5

[0052] In this embodiment, in addition to comprising the structural features of the preceding embodiment 4, the guide groove 62 comprises a lower groove 621, an upper groove 622 and a limiting block 623, the upper groove 622 is arranged on the upper side wall of the middle part of the lower groove 621, and the limiting block 623 is fixedly arranged on the lower side wall of the middle part of the lower groove 621, the end face thereof facing the off position is an inclined surface 6231, and the end face thereof facing the working position is a non-inclined surface 6232.

[0053] As Figures 8 to 9As shown, due to the adoption of the above structure, the segmented design of the guide groove 62 achieves the functional goal of "one-way buffering and reverse smoothness": the lower groove 621 provides a circumferential movement path for the limiting piece 61, and the upper groove 622 provides a clearance space for the limiting piece 61 when the lock cylinder 2 moves axially; the special end face design of the limiting block 623 is the core implementation means - when the driver operates the lock cylinder 2 to rotate from the working position to the off position, the limiting piece 61 will move synchronously with the lock cylinder 2 along the lower groove 621, the non-inclined face 6232 is perpendicular to the rotation direction of the lock cylinder 2, directly blocking the limiting piece 61 from continuing to move, thereby limiting the further rotation of the lock cylinder 2 (forming a "stuck" effect). At this time, the driver needs to press the lock cylinder 2, so that the limiting piece 61 moves axially with the lock cylinder 2 and enters the upper groove 622 (out of contact with the non-inclined face 6232 of the limiting block 623), so as to continue to rotate the lock cylinder 2 to the off position. This "first restriction, need to press to unlock" process can force the driver to slow down the speed of closing the lock when operating urgently, avoid the sudden change of the closing circuit current due to the rapid positioning of the lock cylinder 2, and reduce the current impact amplitude to protect the sensitive electrical appliances such as the trolley battery management system and the motor controller.

[0054] When the driver operates the lock cylinder 2 to rotate from the off position to the working position, the limiting piece 61 will move reversely along the lower groove 621 and contact the inclined face 6231 of the limiting block 623. The guiding effect of the inclined face 6231 will make the limiting piece 61 produce radial floating (compress the torsional spring 613 in the subsequent embodiment 6), so as to smoothly pass through the limiting block 623 and continue to move to the other end of the lower groove 621. The whole process can be smoothly completed without additional operation, and will not hinder the starting action of the lock cylinder 2, and the circuit safety and operation efficiency are considered.

[0055] Embodiment 6

[0056] In this embodiment, in addition to the structural features of the foregoing embodiment 5, the limiting piece 61 includes a mounting groove 611, a clamping plate 612 and a torsional spring 613. The mounting groove 611 is provided on the lock cylinder sleeve 3. One end of the clamping plate 612 is rotatably mounted in the mounting groove 611 through a rotating shaft 614, and the other end is bent to form a matching end 615 (adapted and fitted with the inner wall of the guide groove 62) and can extend into the guide groove 62. The torsional spring 613 is sleeved on the rotating shaft 614, and is used to keep the matching end 615 of the clamping plate 612 in the tendency of extending into the guide groove 62.

[0057] As Figures 8 to 9As shown, due to the above structure, the restriction member 61 is precisely matched with the guide groove 62 by the elastic effect of the torsion spring 613: when the lock cylinder 2 rotates from the working position to the off position, the buckle plate 612 cooperates with the end 615 to move to the non-inclined surface 6232 of the restriction block 623, the elastic force of the torsion spring 613 will enhance the resistance of the end 615 to the restriction block 623, so that the effect of "restricting the rotation of the lock cylinder 2" is more obvious, forcing the driver to slow down the operation and perform the pressing unlocking action, thereby reducing the current impact when the lock is closed; when the lock cylinder 2 rotates from the off position to the working position, the end 615 is in contact with the inclined surface 6231 of the restriction block 623, and the torsion spring 613 will be elastically contracted along the inclined surface 6231 to guide the end 615 to smoothly pass through the restriction block 623, ensuring that the starting process is not jammed. The elastic buffer design of the torsion spring 613 not only strengthens the deceleration effect when the lock is closed, but also ensures the smoothness when starting, effectively meeting the dual needs of circuit protection and operation efficiency of the electric car.

[0058] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements recited, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the statement "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be pointed out that the scope of the methods and apparatus in the embodiments of the present application is not limited to the order of performing the functions as shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in reverse order, for example, the described method can be performed in an order different from that described, and various steps can be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0059] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative, not limiting, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A steering lock with an ignition switch for an automobile, comprising a key, a lock cylinder, a lock cylinder cover, a lock housing, a switch panel, and a protection assembly, characterized in that, The application also discloses a visual indication device for guiding an operator to identify a switch panel, which comprises a light-emitting component and a mounting shell fixed on the switch panel, wherein the bottom of the mounting shell is provided with a lamp holder for mounting the light-emitting component through quick-release devices.

2. A steering lock with an ignition switch for a vehicle according to claim 1, wherein The quick-release device comprises a through slot, an insertion block and a limiting surface, the through slot is arranged on the bottom of the mounting shell and is provided with a notch on the peripheral wall, the insertion block and the limiting surface are arranged on the lamp holder, during installation, the lamp holder is inserted into the mounting shell from the through slot, the insertion block is inserted through the notch, and the limiting surface is attached to the outer wall of the bottom of the mounting shell, the lamp holder is rotated to make the insertion block dislocated from the notch and attached to the inner wall of the bottom of the mounting shell, and the installation is completed.

3. A steering lock with ignition switch for a vehicle according to claim 2, wherein The quick-release device further comprises a convex rib, which is fixed on the bottom of the mounting shell along the edge of the through slot, one end of the convex rib is inclined and the middle part of the convex rib is provided with a clamping groove, and the convex rib is used for guiding the insertion block to enter the clamping groove.

4. A steering lock with ignition switch for a vehicle according to claim 3, wherein The bottom end of the insertion block is provided with an inclined guide surface in the direction of insertion into the through slot, and the inclined guide surface is used for guiding the insertion block to slide into the clamping groove along the inclined end of the convex rib.

5. The key-operated steering lock for vehicles according to claim 1, wherein The application further discloses a light-transmitting panel, which is detachably mounted on the switch panel and is provided with an extension plate for shielding the open end of the mounting shell.

6. A steering lock with ignition switch for a vehicle according to claim 5, wherein The application further discloses a limiting plate, a buckle and a limiting shell, the limiting plate is fixed on the switch panel, the limiting shell is fixed on the light-transmitting panel and is buckled with the limiting plate to limit the circumferential movement of the light-transmitting panel, and the buckle is used for limiting the axial movement of the light-transmitting panel.

7. A steering lock with ignition switch for a vehicle according to claim 5, wherein The application further discloses a lens arranged on the bottom surface of the extension plate.

8. A steering lock with ignition switch for a vehicle according to claim 5, wherein The bottom surface of the light-transmitting panel is provided with decorative patterns.

9. A steering lock with an ignition switch for a vehicle according to any one of claims 1 to 7, characterized in that, The protection assembly comprises a limiting member and a guide groove, the limiting member is radially and floatingly inserted into the lock cylinder sleeve, the guide groove is circumferentially recessed on the outer wall of the lock cylinder, when the lock cylinder is rotated from the working position to the off position, the guide groove cooperates with the limiting member to limit the rotation of the lock cylinder, and the limitation can be released only by axially moving the lock cylinder.

10. The key-operated steering lock for vehicles according to claim 9, wherein The limiting member comprises a mounting groove, a buckle and a torsional spring, the mounting groove is arranged on the lock cylinder sleeve, one end of the buckle is rotatably arranged in the mounting groove through a rotating shaft, the other end of the buckle is bent to form a cooperation end and can be inserted into the guide groove, and the torsional spring is sleeved on the rotating shaft and is used for keeping the cooperation end of the buckle in the tendency of being inserted into the guide groove.

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