CN211313742U

CN211313742U - Lock core

Info

Publication number: CN211313742U
Application number: CN201921832549.1U
Authority: CN
Inventors: 孙晓攀; 李彬; 刘哲
Original assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Current assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-08-21
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a lock core, which comprises a lock core, a row of pieces, a sleeve, a shell, a clutch and a rocker arm, wherein the shell is sleeved outside the sleeve; when the sheet-arranging part retracts into the sleeve, after the lock core is rotated, the lock core drives the sleeve to rotate, the sleeve pushes the roller assembly, and the roller assembly drives the clutch to be separated from the lock core. The utility model discloses in when arranging the piece part withdrawal sleeve, after rotating the lock benevolence, the lock benevolence drives the sleeve and rotates, and the sleeve promotes roller assembly, and roller assembly drives clutch and lock benevolence and breaks away from. The lock core is enabled to idle, the clutch cannot transmit rotation to the rocker arm, accordingly, the row piece or the shell is prevented from being damaged, the row piece is prevented from being forcibly unlocked when not being completely retracted into the lock core, and the anti-theft performance is improved.

Description

Lock core

Technical Field

The utility model relates to a technical field of automobile door lock especially relates to a lock core.

Background

In recent years, with the popularization of automobiles, the improvement of automobile anti-theft performance and safety has become one of the important targets of automobile development. Generally, the driving side of the automobile is provided with a mechanical lock cylinder, and the mechanical lock cylinder is used as a spare to unlock the whole automobile when a remote control key fails to unlock the whole automobile. The design of the lock cylinder of the vehicle door is closely related to the anti-theft performance and the safety of the whole vehicle.

The design of traditional lock core, the principle through whole car of door lock core unblock does: after a key matched with the lock cylinder is inserted, the row of plates completely retract into the lock cylinder sleeve, the key is used for rotating the lock core, the lock core drives the clutch, and the rotary displacement is output through the transmission action of the clutch and drives the rocker arm to rotate so as to unlock the whole vehicle. However, the following conditions exist in which the lock cylinder fails: when a non-matching key or a tool is inserted into the lock core, the row piece cannot retract into the sleeve, and the row piece or the shell can be damaged when the lock core is forcibly rotated; if the lock core rotates, the lock of the vehicle door is unlocked, and the whole vehicle faces the risk of illegal invasion.

Therefore, it is necessary to design a lock cylinder to prevent the row of chips or the housing from being damaged and improve the anti-theft performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide one kind and avoid arranging piece or casing and destroyed, promote the lock core of theftproof performance.

The technical scheme of the utility model provides a lock core, including lock benevolence, row's piece, sleeve, casing, clutch and rocking arm, the casing cover is established outside the sleeve, the sleeve cover is established outside the lock benevolence, the row's piece is followed the lock benevolence stretches out and can be inserted or retract for the sleeve, the lock benevolence with the clutch is connected, the clutch with the rocking arm is connected,

further comprising a roller assembly mounted between the sleeve and the clutch;

when the sheet arranging part retracts into the sleeve, after the lock core is rotated, the lock core drives the sleeve to rotate, the sleeve pushes the roller assembly, and the roller assembly drives the clutch to be separated from the lock core.

Further, the roller assembly includes a roller and a roller elastic member,

one end of the roller is clamped into a sleeve groove of the sleeve, the roller elastic piece is sleeved outside the sleeve and the roller,

the other end of the roller is clamped into a guide groove of the clutch;

when the sleeve rotates, the roller is pushed to be disengaged from the sleeve groove, the roller drives the clutch to be disengaged from the sleeve, and the roller pulls the roller elastic piece.

Furthermore, the clutch is sleeved outside the lock core, a boss extends out of an inner hole of the clutch towards the lock core, and the boss is inserted into a groove of the lock core.

Further, an arc-shaped guide groove is formed in one side face, facing the sleeve, of the clutch;

when the sleeve rotates, the roller can move outwards along the radial direction of the sleeve to push the boss of the clutch to be disengaged from the lock core groove.

Furthermore, a radial guide groove is formed in the shell;

in an initial state, one part of the roller is embedded into the sleeve groove, the other part of the roller is embedded into the radial guide groove, and the distance between the axis of the roller and the axis of the sleeve is larger than the radius of the outer surface of the sleeve;

when the sleeve rotates, the sleeve pushes the roller from the sleeve groove completely into the radial guide groove.

Furthermore, the clutch is further provided with a limiting rib, the limiting rib is matched with the shell, and when the lock core normally rotates, the limiting rib is used for limiting the maximum rotation angle of the lock core.

Furthermore, a lock core clamping groove is formed in the lock core, a clamp spring is installed in the lock core clamping groove, and the clamp spring is used for limiting the rocker arm to swing along the axis.

Further, a rocker spring is also included, the rocker spring being fitted between the rocker and the housing.

Furthermore, the rocker arm buckle is used for connecting the rocker arm and the pull rod.

Further, the clutch includes pushing part, the rocking arm includes the atress portion, the clutch is installed the rocking arm with between the lock benevolence, when the lock benevolence normally rotates, drive the clutch rotates, pushing part promotes the atress portion drives the rocking arm rotates.

After adopting above-mentioned technical scheme, have following beneficial effect:

the utility model discloses in when arranging the piece part withdrawal sleeve, after rotating the lock benevolence, the lock benevolence drives the sleeve and rotates, and the sleeve promotes roller assembly, and roller assembly drives clutch and lock benevolence and breaks away from. The lock core is enabled to idle, the clutch cannot transmit rotation to the rocker arm, accordingly, the row piece or the shell is prevented from being damaged, the row piece is prevented from being forcibly unlocked when not being completely retracted into the lock core, and the anti-theft performance is improved.

Drawings

The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:

fig. 1 is a front view of a lock cylinder according to an embodiment of the present invention;

fig. 2 is an axial exploded view of a lock cylinder according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the lock core, sleeve and roller assembly of the lock cylinder according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a side surface of a clutch of the lock cylinder according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view at A-A of FIG. 1;

fig. 6 is a schematic structural view of the engagement between the clutch and the roller of the lock cylinder according to an embodiment of the present invention;

fig. 7 is a longitudinal sectional view of a lock cylinder according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view at B-B of FIG. 1;

fig. 9 is a schematic structural view of the engagement between the rocker arm of the lock cylinder and the clutch according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of the lock core of the lock cylinder cooperating with the clutch according to an embodiment of the present invention.

Reference symbol comparison table:

the device comprises a dustproof cover 1, a dustproof cover 2, a dustproof cover spring 3, a row of plates 4, a lock core 5, a shell 6, a sleeve 7, a roller elastic piece 8, a roller 9, a clutch 10, a clamp spring 11, a rocker arm 12, a rocker arm spring 13 and a rocker arm buckle 14;

the lock core comprises a lock core groove 51, a lock core clamping groove 52, a radial guide groove 61, a sleeve groove 71, a guide groove 101, a boss 102, a limiting rib 103, a pushing part 104 and a force bearing part 121.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

It is easily understood that, according to the technical solution of the present invention, a plurality of structural modes and implementation modes that can be mutually replaced by those of ordinary skill in the art can be achieved without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are only exemplary illustrations of the technical solutions of the present invention, and should not be construed as limiting or restricting the technical solutions of the present invention in its entirety or as a limitation of the present invention.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

In this embodiment, as shown in fig. 1-2, the lock cylinder includes a lock core 5, a row of plates 4, a sleeve 7, a housing 6, a clutch 10, and a rocker arm 12, the housing 6 is sleeved outside the sleeve 7, the sleeve 7 is sleeved outside the lock core 5, the row of plates 4 extends from the lock core 5 and can be inserted into or retracted from the sleeve 7, the lock core 5 is connected with the clutch 10, the clutch 10 is connected with the rocker arm 12,

the clutch also comprises a roller assembly, wherein the roller assembly is arranged between the sleeve 7 and the clutch 10;

when the row of sheets 4 partially retracts into the sleeve 7, after the lock core 5 is rotated, the lock core 5 drives the sleeve 7 to rotate, the sleeve 7 pushes the roller assembly, and the roller assembly drives the clutch 10 to be separated from the lock core 5.

Specifically, as shown in fig. 2, the lock cylinder sequentially includes, from top to bottom along an axis, a dust cover 1, a dust cover 2, a dust cover spring 3, a row of plates 4, a lock core 5, a housing 6, a sleeve 7, a roller elastic member 8, a roller 9, a clutch 10, a snap spring 11, a rocker arm 12, a rocker arm spring 13, and a rocker arm buckle 14.

Wherein, shield 1 covers in the top of lock benevolence 5, is equipped with dust cover 2 between shield 1 and the lock benevolence 5, and dust cover 2 is used for sheltering from the lockhole of lock benevolence 5. The dust cover spring 3 is used for returning the dust cover 2 after the dust cover 2 is opened by a key.

In the initial state, one end of each row of the sheets 4 is inserted into the lock core 5, and the other end of each row of the sheets is inserted into the sleeve 5;

when the lock core 5 is rotated by a key, the row of plates 4 are completely retracted into the lock core 5 and withdrawn from the sleeve 5, when the lock core 5 is rotated, the sleeve 5 is not driven to rotate, the clutch 10 is directly driven to rotate, and the clutch 10 drives the rocker arm 12 to rotate;

when the lock core 5 is inserted by a non-matching key or tool, the row of blades 4 may be partially retracted, but still partially inserted into the sleeve 5, and when the sleeve 5 is rotated, the roller assembly is pushed, which drives the clutch 10 out of engagement with the lock core 5. When the lock core 5 rotates, the clutch 10 is not driven to rotate, and the rocker arm 12 cannot be driven to rotate. The lock core 5 is enabled to idle, the clutch 10 cannot transmit rotation to the rocker arm 12, accordingly, the row piece or the shell is prevented from being damaged, the row piece is prevented from being forcibly unlocked when not being completely retracted into the lock core, and the anti-theft performance is improved.

Further, as shown in fig. 3, the roller assembly includes a roller 9 and a roller elastic member 8,

one end of the roller 9 is clamped into the sleeve groove 71 of the sleeve 7, and the roller elastic piece 8 is sleeved outside the sleeve 7 and the roller 9;

as shown in fig. 4 to 5, the other end of the roller 9 is caught in the guide groove 101 of the clutch 10;

as shown in fig. 6, when the sleeve 7 rotates, the roller 9 is pushed to come out of the sleeve groove 71, the roller 9 drives the clutch 10 to come out of the sleeve 7, and the roller 9 pulls the roller elastic member 8.

The direction of the arrow in fig. 6 is the moving direction of the roller 9 and the clutch 10. Moving in the radial direction of the sleeve 7.

Further, as shown in fig. 10, the clutch 10 is sleeved outside the lock core 5, the inner hole of the clutch 10 extends to the boss 102 toward the lock core 5, and the boss 102 is inserted into the lock core groove 51 of the lock core 5.

Due to the large internal bore of the clutch 10, there is a sufficient distance between the internal bore and the outer diameter of the lock nut 5. When the clutch 10 moves in the radial direction, the boss 102 is disengaged from the lock core recess 51, and the inner hole of the clutch 10 does not interfere with the lock core 5.

When the lock core 5 is inserted with a matched key and normally rotates, the lock core 5 is not separated from the clutch 10, the boss 102 is inserted into the lock core groove 51, and the lock core 5 can drive the clutch 10 to rotate together.

Further, as shown in fig. 5 to 6, an arc-shaped guide groove 101 is provided on a side surface of the clutch 10 facing the sleeve 7;

when the sleeve 7 is rotated, the rollers 9 can move radially outward of the sleeve 7 to push the boss 102 of the clutch 10 out of the lock cylinder groove 51.

Since the lock core 5 is still engaged with the clutch 10 during the initial rotation, the clutch 10 can be driven to rotate by a certain angle. Therefore, in order to prevent the rollers 9 from coming out of the guide grooves 101 of the clutch 10, the guide grooves 101 are formed in an arc shape at one end. After the clutch 10 rotates for a certain angle, the rollers 9 slide in the guide grooves 101 for a certain length, and gradually push the clutch 10 out in the radial direction.

Further, as shown in fig. 8, the housing 6 is provided with a radial guide groove 61;

in the initial state, one part of the roller 9 is embedded in the sleeve groove 71, the other part is embedded in the radial guide groove 61, and the distance between the axis of the roller 9 and the axis of the sleeve 7 is larger than the radius of the outer surface of the sleeve 7;

when the sleeve 7 is rotated, the sleeve 7 pushes the rollers 9 from the sleeve groove 71 completely into the radial guide grooves 61.

The radial guide grooves 61 serve to guide the rollers 9 to move only in the radial direction, thereby pushing the clutch 10 radially out of the lock core 5.

When a non-matching key is inserted into the lock core 5, the row sheet 4 drives the sleeve 7 to rotate, and when the sleeve rotates, the roller 9 is subjected to the force F applied by the sleeve 7₇₉，F₇₉Component force F in the Y direction_y79Thrust F of the roller 9 against the housing 6_y69Cancel each other out so that the roller 9 will be at F of the sleeve 7_x79Is moved radially outward. The distance between the axis of the roller 9 itself and the axis of the sleeve 7 needs to be greater than the radius of the outer surface of the sleeve 7 when the design is made, otherwise F₇₉Component force F in the x-direction_x79And cannot move radially outward, the rollers 9 cannot move radially outward.

Further, as shown in fig. 6, the clutch 10 is further provided with a limiting rib 103, and the limiting rib 103 is engaged with the housing 6 and used for limiting the maximum rotation angle of the lock core 5 when the lock core 5 normally rotates.

Specifically, the limiting ribs 10 are located on the same side of the guide groove 101.

Further, as shown in fig. 2-3, a lock core clamping groove 52 is formed in the lock core 5, a clamp spring 11 is installed in the lock core clamping groove 52, and the clamp spring 11 is used for limiting the swing arm 12 to swing along the axis.

Further, as shown in fig. 2, a rocker spring 13 is further included, and the rocker spring 13 is fitted between the rocker arm 12 and the housing 6.

When the rocker arm 12 rotates, the rocker arm spring 13 stores energy; when the rotating force applied to the lock core 5 is stopped, the rocker arm 12 is reset by the rocker arm spring 13.

Further, as shown in fig. 2, a rocker arm latch 14 and a pull rod (not shown) are further included, and the rocker arm latch 14 is used for connecting the rocker arm 12 and the pull rod.

The rocker arm latch 14 is made of wear-resistant material and is mounted in a rocker arm hole (not shown), and the pull rod is assembled with the rocker arm latch 14 and is not directly contacted with the rocker arm 12. The rocker latch 14 prevents the rocker arm 12 from coming into direct contact with the pull rod and causing rocker arm hole wear problems over extended use.

Further, as shown in fig. 9, the clutch 10 includes a pushing portion 104, the rocker arm 12 includes a force-receiving portion 121, the clutch 10 is installed between the rocker arm 12 and the lock core 5, when the lock core 5 normally rotates, the clutch 10 is driven to rotate, and the pushing portion 104 pushes the force-receiving portion 121 to drive the rocker arm 12 to rotate.

In the initial state, the pushing part 104 of the clutch 10 does not interact with the force-receiving part 121 of the rocker arm 12;

when the lock core 5 normally rotates, after the clutch 10 rotates a certain angle, the pushing part 104 rotates to contact with the force-bearing part 121, and the rocker arm 12 is pushed to rotate.

The utility model discloses rocking arm and lock benevolence transmission disconnection when can realize that illegal external force is turned round by force to prevent that the situation that lock core functional failure or door were opened from taking place, the theftproof performance reinforcing.

What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.

Claims

1. A lock core comprises a lock core, a row of pieces, a sleeve, a shell, a clutch and a rocker arm, wherein the shell is sleeved outside the sleeve, the sleeve is sleeved outside the lock core, the row of pieces extend out of the lock core and can be inserted into or retracted relative to the sleeve, the lock core is connected with the clutch, the clutch is connected with the rocker arm, and the lock core is characterized in that,

further comprising a roller assembly mounted between the sleeve and the clutch;

2. The lock cylinder of claim 1, wherein the roller assembly includes a roller and a roller spring,

the other end of the roller is clamped into a guide groove of the clutch;

3. The lock core of claim 2, wherein the clutch is sleeved outside the lock core, and a boss is protruded from an inner hole of the clutch toward the lock core and inserted into a lock core groove of the lock core.

4. The lock core of claim 3, wherein said clutch is provided with said guide slot having an arcuate shape on a side facing said sleeve;

5. The lock core of claim 2, wherein the housing defines a radial guide slot;

6. The lock core according to any one of claims 1 to 5, wherein a limiting rib is further provided on the clutch, and the limiting rib is engaged with the housing to limit the maximum rotation angle of the lock core when the lock core is normally rotated.

7. The lock core according to any one of claims 1 to 5, wherein a lock core clamping groove is formed in the lock core, and a clamp spring is installed in the lock core clamping groove and used for limiting the rocker arm to swing along an axis.

8. The lock core of any of claims 1-5, further comprising a rocker spring that fits between the rocker arm and the housing.

9. The lock core according to any one of claims 1 to 5, further comprising a rocker arm latch for connecting the rocker arm with the pull rod, and a pull rod.

10. The lock core according to any one of claims 1 to 5, wherein the clutch includes a pushing portion, the rocker includes a force-receiving portion, the clutch is mounted between the rocker and the lock core, the lock core rotates when normally rotating, the clutch is driven to rotate, and the pushing portion pushes the force-receiving portion to drive the rocker to rotate.