Lock cylinder assembly with idling anti-theft function

Abstract

The utility model relates to the technical field of locks, in particular to a lock cylinder assembly with an idling anti-theft function, which comprises a shell and a lock cylinder which is rotatably mounted relative to the shell, and further comprises an eccentric arm which is fixedly mounted relative to the lock cylinder, and the free end of the eccentric arm is provided with a traction hole; one end of the pull rod is connected with the traction hole of the eccentric arm in a sliding mode, the other end of the pull rod is connected with the lock block, the traction hole is used for guaranteeing that when the eccentric arm rotates, the pull rod is static firstly and then pulled by the eccentric arm to move synchronously, and the technical problem that in the prior art, an automobile door lock is poor in anti-theft function is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lock technology field especially a lock cylinder assembly with idling theftproof function. BACKGROUND

[0002] The existing automobile door lock is limited by the reserved space during the whole vehicle arrangement, or the opening and locking angle of the lock block is designed to be small, so that the door lock eccentric arm can swing at a small angle to open the lock, which affects the comfortable experience when the key is opened, and the risk of theft is more likely to occur, because the keyhole of the lock cylinder is inserted into the plug-in key similar to the key, the lock cylinder is pried to rotate the eccentric arm, and then the pull rod is opened to open the lock block, thereby achieving the purpose of opening the lock without a key.

[0003] The prior art discloses a theftproof lock cylinder for automobile trunk, and the novel patent with publication number CN216197316U discloses a shell, a lock cylinder, a clutch sleeve, a clutch block, a limiting block, a thrust block, a transmission block, an eccentric arm, a travel switch and the like, which reduces the risk of theft to a certain extent, but the related technology including the above technical solution still has many problems, such as: when the space is limited, the small angle still has a risk of theft of the lock, and the theftproof function needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a lock cylinder assembly with idling theftproof function, which solves the technical problem of poor theftproof function of the automobile door lock in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A lock cylinder assembly with idling theftproof function comprises a shell and a lock cylinder rotatably installed opposite to the shell, and further comprises:

[0007] An eccentric arm is fixedly installed opposite to the lock cylinder, and a pulling hole is arranged at the free end of the eccentric arm.

[0008] A pull rod is slidably connected to the pulling hole of the eccentric arm at one end and connected to the lock block at the other end, and the pulling hole is used to ensure that the pull rod is first stationary and then synchronously moved by the eccentric arm when the eccentric arm rotates.

[0009] Further, the line between the initial position of the pulling hole and the center of the lock cylinder is OL1, the line between the end position of the pulling hole and the center of the lock cylinder is OL2, and the included angle a between OL1 and OL2 is in the range of 8°<a<15°.

[0010] Further, the pulling hole is arranged as a long slot or a rectangular hole.

[0011] Further, the eccentric arm and the pull rod are connected through a clamping piece, the clamping piece is fixedly installed at one end of the pull rod, and the clamping piece is slidingly installed in a pulling hole of the eccentric arm.

[0012] Further, the clamping piece comprises:

[0013] A clamping head, the size of the clamping head is greater than the short diameter size of the pulling hole and the size of the clamping head after deformation is smaller than the short diameter size of the pulling hole;

[0014] A clamping connecting portion, the size of the clamping connecting portion is smaller than the short diameter size of the pulling hole and the clamping connecting portion is slidingly installed in the pulling hole;

[0015] A clamping limiting portion, the clamping limiting portion is provided with a limiting hole, and the limiting hole is used for clamping and limiting the pull rod after deformation;

[0016] The clamping head and the clamping limiting portion are connected above and below the clamping connecting portion respectively, the center holes of the clamping head and the clamping connecting portion are collinear, and the axis of the limiting hole is perpendicular to the axes of the clamping head and the clamping connecting portion.

[0017] Further, the clamping portion comprises a first deformation portion and a second deformation portion, the bottoms of the first deformation portion and the second deformation portion are connected with the top of the clamping connecting portion, the spacing between the first deformation portion and the second deformation portion is H, the opposite sides of the first deformation portion and the second deformation portion are provided with circular arc holes, the circular arc holes of the two circular arc holes form a circular hole used for clamping and limiting the end of the pull rod, and the clamping connecting portion is provided in a circular ring shape with a diameter D, wherein 2H < D < 3H.

[0018] Further, two limiting auxiliary portions are further provided on the clamping limiting portion, one end of the limiting auxiliary portion is connected with the side wall of the clamping limiting portion, and the other end of the limiting auxiliary portion extends upward at an oblique angle with the side wall of the clamping limiting portion and is used for being installed on the eccentric arm to contact the bottom surface of the eccentric arm to form a pre-tightening force.

[0019] Further, the clamping piece is made of plastic material.

[0020] Further, an elastic piece is arranged between the bottom of the lock core and the shell for rebounding after unlocking, and the elastic piece is a spring.

[0021] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0022] (1). The utility model discloses a connecting mode between the eccentric arm and the pull rod, realizes that the eccentric arm idles for a certain angle at the initial stage of unlocking, then continues to rotate to pull the pull rod to unlock, and further solves the problem that the conventional lock is easy to be stolen in the prior art because the eccentric arm and the pull rod move synchronously, thereby improving the anti-theft performance of the lock.

[0023] (2). The utility model discloses a set up the clamping piece, realized the sliding connection between the pull rod and eccentric arm, positioned the pull rod simultaneously, and the clamping piece is set to plastic material, and its deformation is convenient for installation and dismounting, when the eccentric arm swing space is restricted in whole car, can satisfy the function requirement and man -machine function requirement of customer, need not redevelop lock block or change other and door lock have spatial relation parts, reduce the design development expense, realized the cost saving, solved the problem that the eccentric arm formula door lock is driven to open the lock block by illegal tool pry type, improved the anti -theft function of car. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0025] Figure 2 It is the overhead structure schematic diagram of the utility model;

[0026] Figure 3 It is Figure 2 It is the section structure schematic diagram of A-A place in;

[0027] Figure 4 It is the assembly structure schematic diagram of clamping piece and pull rod;

[0028] Figure 5 It is the main view structure schematic diagram of clamping piece;

[0029] Figure 6 It is the three-dimensional structure schematic diagram of clamping piece;

[0030] Figure 7 It is the schematic diagram of eccentric arm idle initial state;

[0031] Figure 8 It is the schematic diagram of eccentric arm idle end state.

[0032] 100, shell, 200, lock cylinder, 300, key, 400, elastic piece, 500, eccentric arm, 501, pull hole, 600, clamping piece, 601, clamping head, 6011, first deformation part, 6012, second deformation part, 602, clamping connecting part, 603, clamping limiting part, 6031, limiting hole, 604, limiting auxiliary part, 700, pull rod. DETAILED DESCRIPTION

[0033] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0034] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute apart of this application.

[0035] The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It also will be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0036] The following description refers to the accompanying drawings. Wherever possible, the same reference numbers in different drawings refer to the same or similar elements. The following exemplary embodiments are described herein with reference to the accompanying drawings, which are not necessarily drawn to scale. The following exemplary embodiments are described herein with reference to the accompanying drawings, which are not necessarily drawn to scale. The following exemplary embodiments are described herein with reference to the accompanying drawings, which are not necessarily drawn to scale.

[0037] In the description of the present application, it should be understood that the terms "first", "second", "third" and the like are used only to distinguish similar objects from each other, and do not necessarily indicate or imply a relative importance. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. The "and / or" describes the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B, and the existence of B alone. The character " / " generally represents a "or" relationship between the associated objects. The utility model will be further described below in conjunction with the drawings and examples.

[0039] In order to solve the limitations of the prior art, the embodiment provides a technical scheme, which will be further described below in conjunction with the drawings and examples.

[0040] The utility model mainly aims at the movement angle consistency between the lock cylinder 200, eccentric arm 500 and pull rod 700 in the prior art automobile door lock, which leads to the risk of being stolen when the lock block is pulled open at a certain angle when being illegally pried.

[0041] Referring to the accompanying Figures 1-3A lock cylinder 200 assembly with idling anti-theft function, comprising a shell 100 and a lock cylinder 200 rotatably mounted opposite to the shell 100, an elastic member 400 is arranged between the bottom of the lock cylinder 200 and the shell 100 for springback after unlocking, the elastic member 400 is a spring, preferably a torsion spring, the structure between the lock cylinder 200, the shell 100 and the elastic member 400 belongs to the conventional technology, which will not be described in detail here. It also includes: an eccentric arm 500, which is fixedly mounted opposite to the lock cylinder 200, the purpose is that when the key 300 is inserted into the keyhole of the lock cylinder 200, the eccentric arm 500 can rotate synchronously with the lock cylinder 200, the free end of the eccentric arm 500 is provided with a pulling hole 501, the pulling hole 501 is provided as a long strip hole or a rectangular hole, the long strip hole is shown in the drawing, the long strip hole has a short diameter and a long diameter, wherein the short diameter is the distance between the two edges far away from each other; a pull rod 700, one end of the pull rod 700 is slidably connected with the pulling hole 501 of the eccentric arm 500, the other end is connected with a lock block, the pulling hole 501 is used to ensure that when the eccentric arm 500 rotates, the pull rod 700 is first stationary and then synchronously moves by being pulled by the eccentric arm 500, it can be understood here that the function of the pull rod 700 is to connect the eccentric arm 500 and the lock block, so as to realize that the lock cylinder 200 drives the eccentric arm 500, the eccentric arm 500 drives the pull rod 700, and the pull rod 700 drives the lock block to realize the unlocking action, the purpose of the technical scheme of the present application is that in the initial stage of the rotation of the eccentric arm 500, the pull rod 700 does not move synchronously with the eccentric arm 500, but the eccentric arm 500 first idles for a certain angle, and then the eccentric arm 500 continues to rotate to drive the pull rod 700 to move, the certain angle is the idling angle. The line between the initial position of the pulling hole 501 and the center of the lock cylinder 200 is OL1, the line between the end position of the pulling hole 501 and the center of the lock cylinder 200 is OL2, the included angle α between OL1 and OL2 is in the range of 8°<α<15°, preferably α=12°, it can be understood that the initial position of the pulling hole 501 is that the lock is in the locked state, the key 300 is inserted into the lock cylinder 200 to start the lock cylinder 200, at this time, the position of the pulling hole 501 on the eccentric arm 500 connected with the pull rod 700, the end position of the pulling hole 501 is the position of the pulling hole 501 on the eccentric arm 500 connected with the pull rod 700 after the eccentric arm 500 rotates the angle α with the lock cylinder 200, please refer to the drawings Figure 7 and the drawings Figure 8 , the position of the pull rod 700 in the two drawings is not changed, and the angle of the rotation of the eccentric arm 500 is α.

[0042] Please refer to the drawings Figures 1-2And 4-6, eccentric arm 500 and pull rod 700 through the engagement member 600 between the connection, the engagement member 600 with plastic material, plastic material is more conducive to deformation, the engagement member 600 and the end of the pull rod 700 is fixedly installed, the engagement member 600 is slidingly installed in the pulling hole 501 of eccentric arm 500. Specifically, the engagement member 600 includes: the engagement head 601, the engagement head 601 size is greater than the short diameter size of the pulling hole 501 and the size after deformation is less than the short diameter size of the pulling hole 501, here can be understood that the engagement head 601 can pass through the pulling hole 501 after deformation, and then the engagement head 601 can prevent the engagement member 600 from being separated from the pulling hole 501 after recovery; the engagement connecting portion 602, the size of the engagement connecting portion 602 is less than the short diameter size of the pulling hole 501 and is slidingly installed in the pulling hole 501; the engagement limiting portion 603, the limiting hole 6031 is provided in the engagement limiting portion 603, which is used for clamping and limiting the pull rod 700 after deformation, here can be understood that the limiting hole 6031 is provided in the form of U-shaped structure, which is convenient for clamping and taking out the pull rod 700, the end of the pull rod 700 is provided in the form of 90° right angle, one side of the right angle is extended from the engagement head 601 along the engagement connecting portion 602, and the other side is clamped into the limiting hole 6031 of the engagement limiting portion 603; the engagement head 601 and the engagement limiting portion 603 are connected above and below the engagement connecting portion 602 respectively, and the center holes of the engagement head 601 and the engagement connecting portion 602 are collinear, and the axis of the limiting hole 6031 is perpendicular to the axes of the engagement head 601 and the engagement connecting portion 602.

[0043] Referring to the accompanying drawings Figure 5 and the accompanying drawings Figure 6 The engagement portion includes the first deformation portion 6011 and the second deformation portion 6012, both the first deformation portion 6011 and the second deformation portion 6012 are provided in the form of tapered arc block smaller than a semicircle, and the opposite sides are provided with avoiding surfaces which are recessed in the direction away from each other, so as to facilitate the extension of the end of the pull rod 700, the bottoms of the first deformation portion 6011 and the second deformation portion 6012 are vertically connected with the top of the engagement connecting portion 602, the spacing between the first deformation portion 6011 and the second deformation portion 6012 is H, and the opposite sides of the first deformation portion 6011 and the second deformation portion 6012 are provided with arc holes, which together form a circular hole for clamping and limiting the end of the pull rod 700, and the engagement connecting portion 602 is provided in the form of circular ring with diameter D, wherein 2H

[0044] Referring to the accompanying drawings Figure 6Two limiting auxiliary parts 604 are further arranged on the clamping limiting part 603, one end of the limiting auxiliary part 604 is connected with the side wall of the clamping limiting part 603, and the other end extends upward at an oblique angle with the side wall of the clamping limiting part 603 for contacting the bottom surface of the eccentric arm 500 to form a pre-tightening force when being installed on the eccentric arm 500, and the pre-tightening force is used for improving the stability of the connection between the clamping part 600 and the eccentric arm 500.

[0045] When the lock cylinder 200 assembly is unlocked, the key 300 is inserted into the hole of the lock cylinder 200, the key 300 is rotated, the key 300 drives the lock cylinder 200 and the eccentric arm 500 to rotate, at this time, the elastic member 400 is compressed, the eccentric arm 500 rotates by a certain angle (the angle is an idle angle), the pull rod 700 remains stationary during the process, the key 300 is continuously rotated, the eccentric arm 500 is continuously rotated, the pull rod 700 is driven to move, the pull rod 700 drives the lock block to realize the unlocking action, and the technical point of the anti-theft function is that if an illegal tool is inserted into the lock cylinder 200, the lock cylinder 200 is pried, because the prying angle is limited, and the prying angle is within the idle angle, the unlocking action cannot be realized, so the risk of being stolen and opened is effectively avoided, and the anti-theft performance of the vehicle is improved.

[0046] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application should not be limited to the embodiments shown herein, but should be consistent with the widest scope of principles and novel features disclosed herein.

[0047] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A lock cylinder assembly with a free-spinning anti-theft function, comprising a housing (100) and a lock cylinder (200) rotatably mounted therewith, characterized in that, Also includes: An eccentric arm (500) is fixedly installed relative to the lock cylinder (200), and a pull hole (501) is provided at the free end of the eccentric arm (500). A pull rod (700) has one end slidably connected to the pull hole (501) of the eccentric arm (500) and the other end connected to the locking block. The pull hole (501) is used to ensure that when the eccentric arm (500) rotates, the pull rod (700) first stops and then is pulled synchronously by the eccentric arm (500).

2. The lock cylinder (200) assembly with free-spinning anti-theft function according to claim 1, characterized in that, The line connecting the initial position of the pull hole (501) and the center of the lock cylinder is OL1, and the line connecting the end position of the pull hole (501) and the center of the lock cylinder (200) is OL2. The included angle α between OL1 and OL2 ranges from 8° to 15°.

3. A lock cylinder assembly with anti-theft function for free-spinning as described in claim 2, characterized in that, The pulling hole (501) is configured as a long strip hole or a rectangular hole.

4. A lock cylinder (200) assembly with anti-theft function for free-spinning as described in claim 3, characterized in that, The eccentric arm (500) and the pull rod (700) are connected by a locking member (600). The locking member (600) is fixedly installed relative to one end of the pull rod (700), and the locking member (600) is slidably installed in the traction hole (501) of the eccentric arm (500).

5. A lock cylinder assembly with anti-theft function for free-spinning as described in claim 4, characterized in that, The engaging component (600) includes: The engaging head (601) has a size larger than the minor diameter of the pulling hole (501) and a deformed size smaller than the minor diameter of the pulling hole (501); The engaging connection part (602) is smaller than the minor diameter of the pulling hole (501) and is slidably installed within the pulling hole (501); The engaging and limiting part (603) is provided with a limiting hole (6031), which is used to engage and limit the pull rod (700) after deformation; The engaging head (601) and the engaging limiting part (603) are respectively connected above and below the engaging connecting part (602), and the center holes of the engaging head (601) and the engaging connecting part (602) are collinear. The axis of the limiting hole (6031) is perpendicular to the axis of the engaging head (601) and the engaging connecting part (602).

6. A lock cylinder assembly with anti-theft function for free-spinning as described in claim 5, characterized in that, The engaging portion includes a first deformable portion (6011) and a second deformable portion (6012). The bottoms of the first deformable portion (6011) and the second deformable portion (6012) are connected to the top of the engaging connection portion (602). The distance between the first deformable portion (6011) and the second deformable portion (6012) is H. The opposite sides of the first deformable portion (6011) and the second deformable portion (6012) are both set as arc holes. The arc holes of both form a circular hole for limiting and clamping the end of the pull rod (700). The engaging connection portion (602) is set as an annular shape with a diameter of D, where 2H < D < 3H.

7. A lock cylinder assembly with anti-theft function for free-spinning as described in claim 6, characterized in that, The engaging limiting part (603) is also provided with two limiting auxiliary parts (604). One end of the limiting auxiliary part (604) is connected to the side wall of the engaging limiting part (603), and the other end extends upward at an angle to the side wall of the engaging limiting part (603) to contact the bottom surface of the eccentric arm (500) to form a preload when it is installed on the eccentric arm (500).

8. A lock cylinder assembly with anti-theft function for free-spinning as described in claim 7, characterized in that, The latching component (600) is made of plastic.

9. A lock cylinder assembly with an anti-theft function for free-spinning as described in any one of claims 1-8, characterized in that, An elastic element (400) for rebounding after unlocking is provided between the bottom of the lock cylinder (200) and the housing (100).

10. A lock cylinder assembly with anti-theft function for free-spinning as described in claim 9, characterized in that, The elastic element (400) is a spring.

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