Lock cylinder key anti-theft structure for vehicle

By setting multiple strip slots and strip springs on the lock core structure of the car door lock, and designing milling teeth grooves on the key embryo, the problem of low anti-theft performance of existing car door locks is solved, and higher anti-theft performance is achieved .

CN222501321UActive Publication Date: 2025-02-18JNS AUTO PARTS CO LTD
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Patent Information

Application Number
CN202421181417.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-28
Publication Date
2025-02-18
Estimated Expiration
2034-05-28

AI Technical Summary

Technical Problem

The key anti-theft structure of existing car door locks has low anti-theft performance, is easy to be cracked, and is less difficult to copy.

Method used

An anti-theft structure for automotive lock core keys is designed, including lock core structure and key structure. The lock core structure is equipped with multiple sheet grooves and sheet springs. The four sides of the key embryo have milling teeth, and are designed as grooves. Combined with the screening of the Lou Ren, it increases the coding complexity.

Benefits of technology

It improves the coding complexity of keys and locks, increases the difficulty of copying, and improves the anti-theft performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of automobile door locks, and particularly relates to an automobile lock cylinder key anti-theft structure which comprises a lock cylinder structure and a key structure, the lock cylinder structure comprises a lock core, a row sheet groove is formed in the lock core, a row sheet spring and a row sheet are arranged in the row sheet groove, a rear buckle pin and a rear buckle spring are arranged at the upper end of the lock core, and the rear buckle spring is arranged at the lower end of the lock core. The milling teeth are arranged on the four faces of the part key blank, the groove design is adopted, the number of codes matched with the key and the lock cylinder is increased, the copying difficulty of the codes is large, the number of the codes matched with the key is increased, the number of the codes matched with the key is increased, and the number of the codes matched with the key is increased. The anti-theft performance is high; the lock core of the part is provided with the sheet arranging grooves (the number of the sheet arranging grooves can be increased or decreased according to different lengths and sizes of the lock core), so that the adaptability is improved; the row piece spring is arranged below the part row pieces to provide resilience force for the row pieces.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile door locks, in particular to an anti-theft structure of a car lock core key. Background Art

[0002] Car door locks are an important part of the car body, and are a special part that integrates safety, decoration and craftsmanship. With the development of the automobile industry, the functions and types of car door locks are becoming more and more diverse, and passengers are becoming more and more knowledgeable about cars, and their requirements for car comfort are also getting higher and higher. For car doors, humanized opening and closing are also receiving more and more attention from customers and vehicle companies;

[0003] With the advancement of automobile door lock technology, there are more and more anti-theft structures of lock cores, most of which are single-sided teeth or double-sided teeth. The key tooth code is simple, easy to copy, easy to crack, and low anti-theft performance;

[0004] Therefore, a vehicle lock cylinder key anti-theft structure is now proposed to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a vehicle lock cylinder key anti-theft structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a car lock core key anti-theft structure, comprising a lock core structure and a key structure, the lock core structure comprising a lock core, a sheet row groove is provided on the lock core, a sheet row spring and a sheet row are provided inside the sheet row groove, a rear buckle pin and a rear buckle spring are provided at the upper end of the lock core, a rear buckle is provided at the upper end of the rear buckle spring, a gasket is provided at the upper end of the rear buckle, a surface cover is provided at the upper end of the gasket, and the surface cover is fixedly connected to the lock core by riveting;

[0007] The lock core is provided with an inner sleeve on the outside, a clutch is provided at the lower end of the inner sleeve, a connecting piece is provided at the lower end of the clutch, a compression spring is provided at the lower end of the connecting piece, a direction piece is provided at the lower end of the compression spring, a damping block is provided inside the direction piece, a return spring is sleeved on the outside of the direction piece, and a paddle is provided at the lower end of the direction piece;

[0008] The inner sleeve is fixedly connected by a first lock housing and a second lock housing, and the first lock housing and the second lock housing are fixedly connected by a first pin;

[0009] The key structure comprises a key handle and a key embryo, wherein the key handle is connected to the key embryo via a second pin.

[0010] Preferably, the row of sheets includes a first type of row of sheets, a second type of row of sheets, a third type of row of sheets and a fourth type of row of sheets, the side wall of the first type of row of sheets is provided with a first type of row of sheets assembly surface, the side wall of the second type of row of sheets is provided with a second type of row of sheets assembly surface, the side wall of the third type of row of sheets is provided with a third type of row of sheets assembly surface, and the side wall of the fourth type of row of sheets is provided with a fourth type of row of sheets assembly surface, and the side wall of the lock kernel is provided with a first lock kernel row of sheets groove and a second lock kernel row of sheets groove; the first type of row of sheets assembly surface and the second type of row of sheets assembly surface of the first type of row of sheets and the second type of row of sheets cooperate with the first lock kernel row of sheets groove of the lock kernel, the third type of row of sheets assembly surface and the fourth type of row of sheets assembly surface of the third type of row of sheets and the fourth type of row of sheets cooperate with the second lock kernel row of sheets groove of the lock kernel, and the first type of row of sheets, the second type of row of sheets, the third type of row of sheets and the fourth type of row of sheets are respectively provided with a first row of sheets boss, a second row of sheets boss, a third row of sheets boss and a fourth row of sheets boss inside, and are adapted to the tooth shape of the key embryo.

[0011] Preferably, the front, back, front and back four surfaces of the key embryo are all provided with milling teeth, and all of them are designed as grooves, and the milling teeth are matched with the rows of plates of the lock core.

[0012] Preferably, the sheet-discharging spring is arranged on the sheet-discharging spring.

[0013] Preferably, a boss is provided in the middle of the row of sheets, and the boss is adapted to the tooth shape of the key embryo.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1) The four faces of the key blank of the utility model are milled with teeth and designed with grooves, so that the coding of the key and the lock core is increased, the duplication is difficult, and the anti-theft performance is high;

[0016] 2) The lock core of the utility model is provided with 9 slots for arranging the slices (the number of slots for arranging the slices can also be increased or decreased according to the different lengths of the lock core), which improves the applicability;

[0017] 3) A sheet-discharging spring is provided under the sheet-discharging part of the utility model to provide a rebound force for the sheet-discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the exploded structure of the lock core structure;

[0019] Figure 2 It is a schematic diagram of the overall structure of the lock core structure;

[0020] Figure 3 for Figure 2 A schematic cross-sectional structure diagram of ;

[0021] Figure 4 is a structural schematic diagram of a key structure;

[0022] Figure 5 It is a structural diagram of the fourth type of film arrangement;

[0023] Figure 6 It is a structural diagram of the third type of film arrangement;

[0024] Figure 7 It is a structural schematic diagram of the second type of film arrangement;

[0025] Figure 8 This is a structural diagram of the first type of film arrangement;

[0026] Fig. 9 It is a schematic diagram of the structure of the first type of lock core sheet groove and the second type of lock core sheet groove.

[0027] In the figure: 1 face cover, 2 gasket, 3 rear buckle, 4 rear buckle pin, 5 rear buckle spring, 6 lock core, 7 row of plates, 8 row of plates spring, 9 first pin, 10 first lock shell, 11 second lock shell, 12 inner sleeve, 13 clutch, 14 connecting member, 15 compression spring, 16 direction plate, 17 damping block, 18 return spring, 19 paddle, 20 key handle, 21 second pin, 22 key embryo, 61 first type lock core row of plates groove, 62 second type lock core row of plates groove, 71 first type row of plates, 72 second type row of plates, 73 third type row of plates, 74 fourth type row of plates, 711 first type row of plates assembly surface, 721 second type row of plates assembly surface, 731 third type row of plates assembly surface, 741 fourth type row of plates assembly surface, 712 first type row of plates boss, 722 second type row of plates boss, 732 third type row of plates boss, 742 fourth type row of plates boss. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] Example:

[0031] See also Figure 1-9 , the utility model provides a technical solution:

[0032] A car lock core key anti-theft structure, comprising a lock core structure and a key structure, the lock core structure comprising a lock core 6, a sheet row groove is arranged on the lock core 6, a sheet row spring 8 and a sheet row 7 are arranged inside the sheet row groove, a rear buckle pin 4 and a rear buckle spring 5 are arranged at the upper end of the lock core 6, a rear buckle 3 is arranged at the upper end of the rear buckle spring 5, a gasket 2 is arranged at the upper end of the rear buckle 3, a surface cover 1 is arranged at the upper end of the gasket 2, and the surface cover 1 is fixedly connected to the lock core 6 by riveting;

[0033] An inner sleeve 12 is arranged outside the lock core 6, a clutch 13 is arranged at the lower end of the inner sleeve 12, a connecting member 14 is arranged at the lower end of the clutch 13, a compression spring 15 is arranged at the lower end of the connecting member 14, a direction piece 16 is arranged at the lower end of the compression spring 15, a damping block 17 is arranged inside the direction piece 16, a return spring 18 is sleeved outside the direction piece 16, and a paddle piece 19 is connected to the lower end of the direction piece 16;

[0034] The inner sleeve 12 is fixedly connected by the first lock housing 10 and the second lock housing 11, and the first lock housing 10 and the second lock housing 11 are fixedly connected by the first pin 9;

[0035] The key structure includes a key handle 20 and a key embryo 22 , and the key handle 20 is connected to the key embryo 22 via a second pin 21 .

[0036] The row of sheets 7 includes a first row of sheets 71, a second row of sheets 72, a third row of sheets 73 and a fourth row of sheets 74. The side wall of the first row of sheets 71 is provided with a first row of sheets assembly surface 711, the side wall of the second row of sheets 72 is provided with a second row of sheets assembly surface 721, the side wall of the third row of sheets 73 is provided with a third row of sheets assembly surface 731, and the side wall of the fourth row of sheets 74 is provided with a fourth row of sheets assembly surface 741. The side wall of the lock core 6 is provided with a first lock core row of sheets groove 61 and a second lock core row of sheets groove 62; the first type of the first row of sheets 71 and the second type of the second row of sheets 72 are provided with a first type of the first row of sheets 71 and a second type of the second row of sheets 72. The sheet assembly surface 711 and the second sheet assembly surface 721 cooperate with the first lock core sheet groove 61 of the lock core 6, the third sheet assembly surface 731 of the third sheet 73 and the fourth sheet assembly surface 741 of the fourth sheet 74 cooperate with the second lock core sheet groove 62 of the lock core 6, and the first sheet 71, the second sheet 72, the third sheet 73 and the fourth sheet 74 are respectively provided with the first sheet boss 712, the second sheet boss 722, the third sheet boss 732 and the fourth sheet boss 742 inside, which are adapted to the tooth shape of the key blank 22.

[0037] The four surfaces of the key blank 22 , front and back, are all milled with teeth, and all are designed as grooves, and the milled teeth are matched with the row of plates 7 of the lock core 6 .

[0038] The sheet-discharging spring 8 is arranged on the sheet-discharging 7 .

[0039] A boss is arranged in the middle of the row of plates 7, and the boss is adapted to the tooth shape of the key embryo 22.

[0040] Working principle:

[0041] When the key blank 22 is inserted into the lock core, the row plate 7 matches the key tooth groove, and the row plate 7 is retracted into the lock core 6, and the key can be rotated. If the row plate 7 does not match the key tooth groove, the row plate 7 protrudes out of the lock core 6 under the action of the row plate spring 8 and is stuck in the sleeve groove, and the key cannot be rotated.

[0042] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A car lock core key anti-theft structure, comprising a lock core structure and a key structure, characterized in that: The lock core structure comprises a lock core (6), the lock core (6) is provided with a sheet row groove, the sheet row groove is provided with a sheet row spring (8) and a sheet row (7), the upper end of the lock core (6) is provided with a rear buckle pin (4) and a rear buckle spring (5), the upper end of the rear buckle spring (5) is provided with a rear buckle (3), the upper end of the rear buckle (3) is provided with a gasket (2), the upper end of the gasket (2) is provided with a surface cover (1), and the surface cover (1) is fixedly connected to the lock core (6) by riveting; An inner sleeve (12) is arranged outside the lock core (6), a clutch (13) is arranged at the lower end of the inner sleeve (12), a connecting piece (14) is arranged at the lower end of the clutch (13), a compression spring (15) is arranged at the lower end of the connecting piece (14), a direction plate (16) is arranged at the lower end of the compression spring (15), a damping block (17) is arranged inside the direction plate (16), a return spring (18) is sleeved on the outside of the direction plate (16), and a paddle plate (19) is connected to the lower end of the direction plate (16); The inner sleeve (12) is fixedly connected by the first lock housing (10) and the second lock housing (11), and the first lock housing (10) and the second lock housing (11) are fixedly connected by a first pin (9); The key structure comprises a key handle (20) and a key embryo (22), wherein the key handle (20) is connected to the key embryo (22) via a second pin (21).

2. The anti-theft structure of a vehicle lock cylinder key according to claim 1, characterized in that: The row of sheets (7) comprises a first type of row of sheets (71), a second type of row of sheets (72), a third type of row of sheets (73) and a fourth type of row of sheets (74); the side wall of the first type of row of sheets (71) is provided with a first type of row of sheets assembly surface (711); the side wall of the second type of row of sheets (72) is provided with a second type of row of sheets assembly surface (721); the side wall of the third type of row of sheets (73) is provided with a third type of row of sheets assembly surface (731); the side wall of the fourth type of row of sheets (74) is provided with a fourth type of row of sheets assembly surface (741); the side wall of the lock core (6) is provided with a first lock core row of sheets groove (61) and a second lock core row of sheets groove (62); the first type of row of sheets (71) and the second type of row of sheets (72) are provided with a first type of row of sheets (71) and a second type of row of sheets (72) The first type of sheet assembly surface (711) and the second type of sheet assembly surface (721) cooperate with the first lock core sheet arrangement groove (61) of the lock core (6); the third type of sheet assembly surface (731) and the fourth type of sheet assembly surface (741) of the third type of sheet (73) and the fourth type of sheet (74) cooperate with the second lock core sheet arrangement groove (62) of the lock core (6); the first type of sheet (71), the second type of sheet (72), the third type of sheet (73) and the fourth type of sheet (74) are respectively provided with a first sheet arrangement boss (712), a second sheet arrangement boss (722), a third sheet arrangement boss (732) and a fourth sheet arrangement boss (742) inside, and are adapted to the tooth shape of the key embryo (22).

3. The anti-theft structure of a vehicle lock cylinder key according to claim 1, characterized in that: The key embryo (22) has milled teeth on the front, back, front and back surfaces, and all of them are designed as grooves, and the milled teeth match the rows of plates (7) of the lock core (6).

4. The anti-theft structure of a vehicle lock cylinder key according to claim 1, characterized in that: The sheet-discharging spring (8) is arranged on the sheet-discharging (7).

5. The anti-theft structure of a vehicle lock cylinder key according to claim 1, characterized in that: A boss is provided in the middle of the row of plates (7), and the boss is adapted to the tooth shape of the key embryo (22).