Anti-theft structure for vehicle door lock core

Abstract

The present invention discloses an anti-theft structure for a vehicle door lock cylinder, comprising a lock cylinder, a base, a connecting rod, and a baffle. The base comprises a base connected to the end of the lock cylinder's spindle, and is provided with a rotating arm and a limiting arm. The rotating arm is used to transmit the rotational motion of the spindle about its axis to a lock block via the connecting rod, thereby mechanically unlocking the vehicle door. The limiting arm is provided with a first plane, and the baffle is provided with a second plane. The first plane and the second plane are both perpendicular to the spindle axis and arranged opposite a gap. The baffle is fixed relative to the vehicle door so that the baffle can limit the distance the limiting arm moves toward the baffle during an abnormal unlocking action, thereby limiting the range of oscillation of the spindle during an abnormal unlocking action. By limiting the oscillation range of the lock cylinder spindle, the anti-theft performance of the vehicle is improved, thereby enhancing safety.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle door locks, and in particular to an anti-theft structure of a vehicle door lock core. Background Art

[0002] Door locks are an essential component of automobiles, ensuring their safety and reliability. Currently, a common method of vehicle theft involves using a prying tool such as a screwdriver to rotate or shake the door lock's core, transmitting the shaking motion through a pull rod to the lock block for unlocking. This method generally requires significant movement of the core, so designing an anti-theft mechanism tailored to the lock's ability to move can improve vehicle safety. However, the prior art lacks relevant documentation of this technology. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide a vehicle door lock core anti-theft structure, which limits the swing range of the lock core shaft, improves the anti-theft performance of the vehicle, and improves the safety.

[0004] To solve the above technical problems, the present invention provides a vehicle door lock cylinder anti-theft structure, comprising a lock cylinder, a base, a connecting rod, and a baffle; the base comprises a seat body connected to the end of the core shaft of the lock cylinder, and the seat body is provided with a rotating arm and a limiting arm; the rotating arm is used to transmit the rotational motion of the core shaft around the axis to the lock block through the connecting rod, thereby realizing mechanical unlocking of the vehicle door;

[0005] A first plane is provided on the limit arm, and a second plane is provided on the baffle. The first plane and the second plane are both perpendicular to the axis of the core shaft and are arranged opposite the gap. The baffle is fixed relative to the vehicle door, so that the baffle can limit the distance that the limit arm moves toward the side of the baffle under abnormal unlocking action, thereby limiting the shaking range of the core shaft under abnormal unlocking action.

[0006] Preferably, the baffle is fixed to the vehicle door, and can be fixed to the vehicle door outer panel or the vehicle door inner panel. The gap between the first plane and the second plane is designed to match the actual vehicle model, so that the movable range of the core shaft by shaking it up and down or left and right is reduced.

[0007] In the above-mentioned vehicle door lock core anti-theft structure, the first plane and the second plane are arranged with a vertical gap, so that when the lock is illegally unlocked by shaking the core shaft, the first plane of the limit arm and the fixed second plane will collide and interfere, limiting the range of the limit arm that can be shaken along with the core shaft, reducing the possibility of unlocking by shaking the lock core, and improving vehicle safety.

[0008] As an improvement to the anti-theft structure of the vehicle door lock core of the present invention, a circular arc hole is provided on the rotating arm, and a connecting head is provided in the circular arc hole. The connecting head can slide from one end to the other end in the circular arc hole and can move within a set distance along the axial direction of the core shaft.

[0009] Furthermore, when the vehicle door is closed, the connecting head is located in the middle of the arc-shaped hole.

[0010] Furthermore, the connector is in a dumbbell structure with larger ends and a smaller middle. The middle part is movably arranged in the arc-shaped hole, and the length of the middle part is greater than the thickness of the arc-shaped hole.

[0011] As another improvement to the anti-theft structure of the vehicle door lock cylinder of the present invention, a connecting shaft is provided on the end surface of the core shaft, the axis of the connecting shaft is collinear with the axis of the core shaft, a first groove and a second groove are axially opened on the side surface of the connecting shaft and penetrate the end surface, and a recessed structure is provided on the bottom surface of the second groove;

[0012] The base body is in the shape of a cover, and a through-hole is provided on the cover plate. A first clamping strip and a second clamping strip are provided on the inner side wall of the through-hole, and the first clamping strip and the second clamping strip are both in the shape of long strips and plates; the main body of the first clamping strip is formed by the protrusion of the inner side wall of the through-hole, and the main body is arranged along the axial direction of the core shaft; the main body of the second clamping strip is arranged obliquely relative to the axial direction of the core shaft, one end is fixed to the inner side wall of the through-hole, and the other end extends obliquely away from the core shaft, and a protrusion structure is provided on the inner side surface of the main body;

[0013] When the seat body is covered on the end of the core shaft, the connecting shaft passes through the through hole, so that the first clamping strip can be embedded in the first groove, and the second clamping strip can be inserted into the second groove at an angle, so that the seat body and the core shaft can rotate synchronously, and the protruding structure can be brought into contact with the recessed structure to prevent the seat body from falling off from the end of the core shaft.

[0014] Furthermore, the bottom surface of the first groove is horizontal, and there are two first grooves, which are symmetrically arranged in the vertical direction; the bottom surface of the second groove is vertical, and there are also two second grooves, which are symmetrically arranged in the horizontal direction.

[0015] Furthermore, the limiting arm is in the shape of a two-stage stepped plate, including a first plate body, a second plate body and a third plate body. The first plate body is formed by extending from the bottom of the cover plate of the base body, the second plate body is formed by bending and extending the edge of the first plate body toward the outer panel of the vehicle door, and the third plate body is formed by extending the second plate body in a vertical plane. The surface of the third plate body close to the outer panel of the vehicle door is the first plane.

[0016] As another improvement to the anti-theft structure of the vehicle door lock cylinder of the present invention, a cylindrical flange block is provided on the outer side surface of the cover plate of the base body, the wall of the flange block surrounds the outer side of the through hole, and the cylindrical wall is arranged along the axial direction of the core shaft; the main body of the first clamping strip extends axially along the core shaft, and the extended part is fixed on the inner side wall of the flange block, and the other end of the second clamping strip is spaced apart from the inner side wall of the flange block.

[0017] As another improvement of the anti-theft structure of the vehicle door lock core of the present invention, the baffle is arranged on a side of the limiting arm close to the vehicle door outer panel.

[0018] Furthermore, the lock core is fixed to the vehicle door outer panel via a clamping plate, and the baffle is fixed to the clamping plate, the vehicle door outer panel and / or the vehicle door inner panel.

[0019] In summary, the above-mentioned vehicle door lock core anti-theft structure has the following beneficial effects: limiting the swing range of the lock core shaft, cutting off the transmission of the pull rod when the lock core shaft swings within a small range, improving the vehicle's anti-theft performance, and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached figure:

[0021] Figure 1 It is a structural diagram of the vehicle door lock core anti-theft structure of the present invention.

[0022] Figure 2 This is a structural diagram of the back of the base of the vehicle door lock cylinder anti-theft structure of the present invention.

[0023] Figure 3 This is a diagram of the connecting rod structure of the vehicle door lock cylinder anti-theft structure of the present invention.

[0024] Figure 4 This is a structural diagram of the connecting shaft of the vehicle door lock cylinder anti-theft structure of the present invention.

[0025] Figure 5 This is a cross-sectional view of the base of the vehicle door lock core anti-theft structure of the present invention.

[0026] Figure 6 for Figure 1 A partial enlarged view of part A.

[0027] Figure 7 The figure is a schematic diagram of an installation of a baffle of the anti-theft structure of a vehicle door lock cylinder according to the present invention.

[0028] In the figure, 1. lock core; 15. core shaft; 2. clamping plate; 3. vehicle door outer panel; 4. screw; 5. vehicle door inner panel; 6. base; 61. seat body; 611. flange block; 612. rib plate; 613. recessed groove; 62. through hole; 63. first clamping strip; 64. second clamping strip; 641. raised structure; 65. rotating arm; 651. arc-shaped hole; 652. first plate; 653. second plate; 654. third plate; 66. limiting arm; 661. first plate; 662. second plate; 663. third plate; 71. connecting rod; 72. connecting head; 8. baffle; 81. second plane. DETAILED DESCRIPTION

[0029] The following further describes the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0030] Example 1

[0031] Figure 1-6 The figure shows an anti-theft structure of a car door lock cylinder according to the present invention. Figure 1 and Figure 2 As shown, the anti-theft structure of the car door lock core includes a lock core 1, a base 6, a connecting rod 71 and a baffle 8; the base 6 includes a base body 61 connected to the end of the core shaft 15 of the lock core 1, and a rotating arm 65 and a limiting arm 66 are provided on the base body 61; the rotating arm 65 is used to transmit the rotational movement of the core shaft 15 around the axis to the lock block through the connecting rod 71, so as to realize the mechanical unlocking of the car door; a first plane 664 is provided on the limiting arm 66, and a second plane 81 is provided on the baffle 8, and the first plane 664 and the second plane 81 are both perpendicular to the axis of the core shaft 15 and are arranged opposite the gap; the baffle 8 is fixed relative to the car door, so that the baffle 8 can limit the distance that the limiting arm 66 moves toward the side of the baffle 8 under abnormal unlocking action, thereby limiting the shaking range of the core shaft 15 under abnormal unlocking action.

[0032] like Figure 1 and Figure 2 , which shows a structural form of the rotating arm 65. The rotating arm 65 is provided with an arc-shaped hole 651, and a connector 72 is provided in the arc-shaped hole 651. The connector 72 can slide from one end to the other end in the arc-shaped hole 651 and can move axially along the core shaft 15 within a set distance.

[0033] The connector 72 is used to connect to one end of the connecting rod 71, so that the rotational movement of the core shaft 15 around the axis can be transmitted to the locking block 7 through the rotating arm 65, the connector 72 and the connecting rod 71 to achieve unlocking.

[0034] In some embodiments, when the vehicle door is closed, the connector 72 is located in the middle of the arc-shaped hole 651 .

[0035] The axis of the arc-shaped hole 651 coincides with the axis of the core shaft 15. For example, the central angle of the arc-shaped hole 651 can be designed to be 60°. The reserved given -30° & +30° idle stroke can not only be compatible with system design and manufacturing errors, but also absorb the small-range shaking of the rotating arm 65 along the core shaft 15, cut off the transmission to the pull rod when the lock core shaft shakes within a small range, keep the connecting rod 71 stationary, and improve safety.

[0036] In some embodiments, the arc-shaped hole 651 is located in a plane perpendicular to the axis of the core shaft 15, that is, the arc-shaped hole 651 is located in a vertical plane, and the rotation transmission is stable.

[0037] In certain embodiments, as Figure 3 As shown, connector 72 is a dumbbell structure with larger ends and a smaller center. The center portion is movably disposed within arc-shaped hole 651, and the length of the center portion is greater than the thickness of arc-shaped hole 651. Connector 72 is loosely matched with the groove of arc-shaped hole 651, reducing the requirements for component dimensional accuracy. It can also absorb small-scale shaking of rotating arm 65 along core shaft 15, keeping connecting rod 71 stationary.

[0038] like Figure 1 、 Figure 2 、 Figure 4-6 The figure shows a structure in which the end of the core shaft 15 is mounted in conjunction with the seat 61. A connecting shaft 16 is provided on the end surface of the core shaft 15. The axis of the connecting shaft 16 is collinear with the axis of the core shaft 15. A first groove 161 and a second groove 162 are axially formed on the side surface of the connecting shaft 16, which penetrates the end surface. A recessed structure 163 is provided on the bottom surface of the second groove 162.

[0039] The base body 61 is in the shape of a cover, and a through hole 62 is provided on the cover plate. A first clamping strip 63 and a second clamping strip 64 are provided on the inner wall of the through hole 62. The first clamping strip 63 and the second clamping strip 64 are both in the shape of long strips. The main body of the first clamping strip 63 is formed by the protrusion of the inner wall of the through hole 62, and the main body is arranged along the axial direction of the core shaft 15; the main body of the second clamping strip 64 is arranged at an angle relative to the axial direction of the core shaft 15, one end is fixed on the inner wall of the through hole 62, and the other end extends at an angle away from the axis of the core shaft 15, and a protruding structure 641 is provided on the inner side surface of the main body.

[0040] When the seat body 61 covers the end of the core shaft 15, the connecting shaft 16 passes through the through hole 62, so that the first clamping strip 63 can be embedded in the first groove 161, and the second clamping strip 64 can be inserted into the second groove 162 at an angle, so that the seat body 61 and the core shaft 15 can rotate synchronously, and the protruding structure 641 can contact and abut against the recessed structure 163, thereby limiting the seat body 61 from falling off from the end of the core shaft 15.

[0041] In certain embodiments, as Figure 1 and Figure 4As shown, the bottom surface of the first groove 161 is horizontal, there are two first grooves 161, and they are symmetrically arranged in the vertical direction; the bottom surface of the second groove 162 is vertical, there are two second grooves 162, and they are symmetrically arranged in the horizontal direction. Figure 6 As shown, two first clamping strips 63 and two second clamping strips 64 are provided.

[0042] In certain embodiments, as Figure 1 and Figure 2 As shown, the limiting arm 66 is in the shape of a two-stage stepped plate, including a first plate body 661, a second plate body 662 and a third plate body 663. The first plate body 661 is formed by extending from the bottom of the cover plate of the base body 61, the second plate body 662 is formed by bending and extending the edge of the first plate body 661 toward the vehicle door outer panel 3, and the third plate body 663 is formed by extending the second plate body 662 in a vertical plane. The surface of the third plate body 663 close to the vehicle door outer panel 3 is the first plane 664.

[0043] In certain embodiments, as Figure 1 and Figure 2 As shown, the structure of the rotating arm 65 is similar to that of the limiting arm 66, and is also in the shape of a two-stage stepped plate. It extends horizontally from the cover plate of the base body 61 to form a first plate 652, then bends and extends toward the door outer panel 3 to form a second plate 653, and finally bends and extends in a vertical plane toward the side away from the base body 61 to form a third plate 654. Figure 2 As shown, the arc-shaped hole 651 is provided on the third plate 654 , and a peripheral edge is provided on a side of the third plate 654 close to the vehicle door outer panel 3 .

[0044] In certain embodiments, as Figure 6 As shown, a cylindrical flange block 611 is provided on the outer side surface of the cover plate of the base body 61, the wall of the flange block 611 surrounds the outer side of the hole 62, and the cylindrical wall is arranged along the axial direction of the core shaft 15; the main body of the first clamping strip 63 extends axially along the core shaft 15, and the extended part is fixed on the inner side wall of the flange block 611, and the other end of the second clamping strip 64 is spaced apart from the inner side wall of the flange block 611.

[0045] In addition, a plurality of ribs 612 are provided between the outer side wall of the flange block 611 and the outer side surface of the cover plate of the base body 61. Figure 2 As shown, the inner side of the cover plate of the seat body 61 is provided with a concave groove 613, as shown in FIG. Figure 4 As shown, the end face of the core shaft 15 is provided with a protrusion 151 adapted to the concave groove 613 .

[0046] like Figure 1FIG. 1 shows a structural form of the baffle 8 and the limiting arm 66. The baffle 8 is disposed on the side of the limiting arm 66 close to the door outer panel 3. It should be noted that the baffle 8 and the second plane 81 can also be disposed on the side away from the door outer panel 3, as long as the shaking of the base 6 is limited.

[0047] Optionally, the lock core 1 is fixed to the door outer panel 3 via the clamping plate 2, and the baffle 8 is fixed to the clamping plate 2, the door outer panel 3 and / or the door inner panel 5. Figure 7 As shown, it is schematically shown that the baffle 8 is arranged on the clamping plate 2. The clamping plate 2 not only clamps and fixes the lock cylinder 1, but also is integrally fastened to the door inner panel 5 with the baffle 8 via screws 4.

[0048] When in use, the first plane 664 and the second plane 81 are both perpendicular to the axis of the core shaft 15 and are arranged opposite the gap; the baffle 8 is fixed relative to the vehicle door, so that the baffle 8 can limit the distance that the limit arm 66 moves toward the side of the baffle 8 under abnormal unlocking action, thereby limiting the shaking range of the core shaft 15 under abnormal unlocking action, thereby limiting the shaking range of the lock core shaft, improving the anti-theft performance of the vehicle, and improving safety.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that after reading the present invention, those skilled in the art may still make various changes, modifications or equivalent substitutions to the specific implementation methods of the invention, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims of the invention.

Claims

1. A car door lock cylinder anti-theft structure, characterized in that: The invention comprises a lock core (1), a base (6), a connecting rod (71) and a baffle (8); the base (6) comprises a seat body (61) connected to the end of the core shaft (15) of the lock core (1); a rotating arm (65) and a limiting arm (66) are provided on the seat body (61); the rotating arm (65) is used to transmit the rotational motion of the core shaft (15) around the axis to the lock block through the connecting rod (71), thereby realizing mechanical unlocking of the vehicle door; A first plane is provided on the limiting arm (66), and a second plane (81) is provided on the baffle (8); the first plane and the second plane (81) are both perpendicular to the axis of the core shaft (15) and are arranged opposite to the gap; the baffle (8) is fixed relative to the vehicle door, so that the baffle (8) can limit the distance that the limiting arm (66) moves toward the side of the baffle (8) under an abnormal unlocking action, thereby limiting the shaking range of the core shaft (15) under an abnormal unlocking action.

2. The vehicle door lock cylinder anti-theft structure according to claim 1, characterized in that: The rotating arm (65) is provided with an arc-shaped hole (651), and a connector (72) is provided in the arc-shaped hole (651). The connector (72) can slide from one end to the other end in the arc-shaped hole (651) and can move within a set distance along the axial direction of the core shaft (15).

3. The anti-theft structure of a vehicle door lock cylinder according to claim 2, characterized in that: When the vehicle door is closed, the connecting head (72) is located in the middle of the arc-shaped hole (651).

4. The vehicle door lock cylinder anti-theft structure according to claim 3, characterized in that: The connector (72) is in a dumbbell structure with larger ends and a smaller middle. The middle portion is movably arranged in the arc-shaped hole (651), and the length of the middle portion is greater than the thickness of the arc-shaped hole (651).

5. The anti-theft structure of a vehicle door lock cylinder according to claim 1, characterized in that: A connecting shaft (16) is provided on the end face of the core shaft (15), the axis of the connecting shaft (16) is colinear with the axis of the core shaft (15), a first groove (161) and a second groove (162) penetrating the end face are provided on the side face of the connecting shaft (16) in the axial direction, and a recessed structure (163) is provided on the bottom face of the second groove (162); The seat body (61) is in the shape of a cover, and a through hole (62) is provided on the cover plate, and a first clamping strip (63) and a second clamping strip (64) are provided on the inner side wall of the through hole (62), and the first clamping strip (63) and the second clamping strip (64) are both in the shape of long strips and plates; the main body of the first clamping strip (63) is formed by the protrusion of the inner side wall of the through hole (62), and the main body is arranged along the axial direction of the core shaft (15); the main body of the second clamping strip (64) is arranged obliquely relative to the axial direction of the core shaft (15), one end is fixed on the inner side wall of the through hole (62), and the other end extends obliquely in the direction away from the core shaft (15), and a protruding structure (641) is provided on the inner side surface of the main body; When the seat body (61) covers the end of the core shaft (15), the connecting shaft (16) passes through the through hole (62), so that the first clamping strip (63) can be embedded in the first groove (161), and the second clamping strip (64) is obliquely inserted into the second groove (162), so that the seat body (61) and the core shaft (15) can rotate synchronously, and the protruding structure (641) and the recessed structure (163) can be brought into contact with each other, thereby limiting the seat body (61) from falling off from the end of the core shaft (15).

6. The vehicle door lock cylinder anti-theft structure according to claim 5, characterized in that: The bottom surface of the first groove (161) is horizontal, and there are two first grooves (161) arranged symmetrically in the vertical direction; the bottom surface of the second groove (162) is vertical, and there are also two second grooves (162) arranged symmetrically in the horizontal direction.

7. The vehicle door lock cylinder anti-theft structure according to claim 5, characterized in that: The limiting arm (66) is in the shape of a two-stage stepped plate, comprising a first plate body (661), a second plate body (662) and a third plate body (663), wherein the first plate body (661) is formed by extending from the bottom of the cover plate of the seat body (61), the second plate body (662) is formed by bending and extending the edge of the first plate body (661) toward the vehicle door outer panel (3), and the third plate body (663) is formed by extending the second plate body (662) in a vertical plane, and the surface of the third plate body (663) close to the vehicle door outer panel (3) is the first plane.

8. The anti-theft structure of a vehicle door lock cylinder according to claim 5, characterized in that: A cylindrical flange block (611) is provided on the outer side surface of the cover plate of the seat body (61), the wall of the flange block (611) surrounds the outer side of the through hole (62), and the cylindrical wall is arranged along the axial direction of the core shaft (15); the main body of the first clamping strip (63) extends axially along the core shaft (15), and the extended part is fixed on the inner side wall of the flange block (611), and the other end of the second clamping strip (64) is spaced apart from the inner side wall of the flange block (611).

9. The vehicle door lock cylinder anti-theft structure according to claim 1, characterized in that: The baffle (8) is arranged on a side of the limiting arm (66) close to the vehicle door outer panel (3).

10. The vehicle door lock cylinder anti-theft structure according to claim 9, characterized in that: The lock core (1) is fixed to the vehicle door outer panel (3) via a clamping plate (2), and the baffle (8) is fixed to the clamping plate (2), the vehicle door outer panel (3) and / or the vehicle door inner panel (5).

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