Automatic lock cylinder with good anti-theft performance
By designing components such as the free-spinning stop, sealing pin, and limiting edge of the lock cylinder, the problem of easy damage to existing lock cylinders has been solved, achieving high anti-theft performance and stability of the lock cylinder and enhancing the protective effect of the lock cylinder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-29
- Publication Date
- 2026-04-10
AI Technical Summary
Existing lock cylinders are easily damaged, have poor anti-theft performance, are prone to damage, and are easily opened by illegal means.
A lock cylinder structure was designed, comprising a lock case, a dial, a movable head, a lock cylinder, a free-spinning stop, a clutch mechanism, and a lock plate assembly. Through the cooperation of components such as the free-spinning stop, sealing pin, limiting hole, limiting ridge, and anti-picking groove, the insertion depth and rotation of tools are limited, thereby improving the stability and anti-theft performance of the lock cylinder.
It effectively prevents the lock cylinder from being damaged, improves the anti-theft performance and reliability of the lock cylinder, reduces the probability of unauthorized opening, and enhances the stability and service life of the lock cylinder.
Smart Images
Figure CN224107068U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of lock cylinder, concretely relates to an automatic lock lock cylinder with good anti-theft performance. BACKGROUND
[0002] The main function of the lock cylinder is to transmit the torque from the head to drive other components of the lock to achieve unlocking and locking. The existing lock cylinder includes a lock shell, a dial, a clutch mechanism and a lock core. The lock core and the clutch mechanism are matched through a mechanical key control to control the lock bolt through the dial to achieve unlocking and locking. When the lock cylinder is installed on an automatic door lock, the electric structure of the automatic door lock controls the lock bolt through the dial through the clutch mechanism to achieve unlocking and locking. The electric structure does not interfere with the lock core when starting. The lock core of the existing lock cylinder is easily damaged by others through a screwdriver or other tools to forcibly unlock through the door lock panel, resulting in damage to the lock core and the need to replace the lock core, which is high in cost. The lock column of the existing lock cylinder is easily moved by others through tin paper to separate the lock column from the blade to achieve unlocking, resulting in poor anti-theft performance. SUMMARY
[0003] Based on the above problems, the utility model aims to provide an automatic lock lock cylinder capable of protecting the lock core from being damaged, having high stability of the lock column and good anti-theft performance.
[0004] To solve the above problems, the following technical scheme is provided: an automatic lock lock cylinder with good anti-theft performance, comprising a lock shell, a dial, a movable head, a lock core and a movable dial piece in transmission cooperation with the movable head. The lock shell is provided with a mounting hole for mounting the lock core. The lock core is coaxially provided with a lock hole relative to the mounting hole. An idle baffle is arranged in the mounting hole at the outer end of the lock core. The end of the idle baffle is provided with a lock opening corresponding to the lock hole. An annular groove is formed in the outer circumferential wall of the idle baffle. A limiting hole is formed in the lock shell in the radial direction relative to the annular groove. A sealing pin is installed in the limiting hole and inserted into the annular groove.
[0005] Further include clutch mechanism, the clutch mechanism includes coaxial first clutch, second clutch, transmission rod, first return spring and second return spring, the dial is respectively rotatably sleeved in the movable head end and the lock end, the dial is provided with a through hole corresponding to the first clutch and the second clutch, the movable head is provided with a containing groove containing the first clutch, the outer circumferential wall of the first clutch and the second clutch is provided with a clamping block corresponding to the radial direction, the inner wall of the containing groove and the through hole and the lock end are provided with a clamping groove corresponding to the clamping block, the clamping groove at the through hole is provided with a through hole, the first clutch and the second clutch are rotatably sleeved on the transmission rod, the first return spring is sleeved on the transmission rod and located in the second clutch, the end of the transmission rod is provided with a limiting plate abutting against the first return spring, the second return spring is located in the containing groove and abuts against the end face of the first clutch, and is coaxially arranged with the transmission rod, one end of the second clutch is provided with a connecting port corresponding to the radial direction, one end of the first clutch is located in the containing groove, and the other end is located in the through hole, and the second clutch is located in the lock.
[0006] The radial direction of the lock is provided with a blade port, and the blade port is provided with a lock plate assembly, the lock plate assembly comprises a blade and an auxiliary plate located on one side of the blade, the blade and the auxiliary plate are provided with a corresponding insertion port, the blade and the auxiliary plate are provided with a blade foot towards the insertion port, the radial direction of the lock is provided with an installation channel on one side of the blade port, the installation channel is provided with a blade spring, one end of the blade is provided with an abutting block abutting against the blade spring, the outer wall of the lock is provided with an installation port, the installation port is provided with a lock column, the side of the lock column towards the blade is provided with a limiting edge, the installation port is provided with a limiting groove matched with the limiting edge, the blade port and the limiting groove are communicated, the side of the lock column opposite to the limiting edge is provided with an anti-rotation block protruding upwards, the lock column is provided with a limiting spring, the limiting spring is provided with a cover plate, the lock shell is provided with an anti-rotation groove corresponding to the anti-rotation block, the side of the blade and the auxiliary plate towards the limiting protruding edge is provided with an opening groove, the blade is provided with a first anti-pulling groove on both sides of the opening groove, and the auxiliary plate is provided with a second anti-pulling groove on both sides of the opening groove.
[0007] In the structure, the idle blocking ring is arranged, when others pass through the lock hole by a screwdriver or other tools, the idle blocking piece and the thickness of the door lock panel reduce the depth of the screwdriver insertion, so that the idle blocking piece rotates relative to the axial direction when the screwdriver is rotated, thereby avoiding damage to the lock cylinder by others, and the anti-theft performance of the utility model is improved. The annular groove is matched with the sealing pin to limit the axial direction of the idle blocking piece, thereby improving the stability of the idle blocking piece and the reliability of the utility model. The limiting hole is arranged to facilitate the installation of the sealing pin, thereby improving the convenience of assembly of the utility model. The matching key is inserted into the lock hole of the lock cylinder, when the key end is inserted into the connecting port, the transmission rod is continuously inserted forward to drive the second clutch, the first clutch and the movable head to displace, until the first clutch enters the accommodating groove of the movable head, the key cannot continue to displace forward, the second clutch displaces into the through hole of the dial, the key is rotated, the second clutch is matched with the clamping groove of the dial through the clamping block of the second clutch, the second clutch drives the dial to rotate, and the unlocking and locking of the door lock are realized; after the unlocking or locking is completed, the clamping block of the second clutch is reset corresponding to the clamping groove of the lock cylinder by rotating the key, the first clutch is elastically reset by the second reset spring, thereby the second clutch is pushed by the first clutch, the clamping block of the second clutch is accurately reset corresponding to the clamping groove of the lock cylinder when the second clutch is rotated and reset by the key, and the key is convenient to pull out. The coaxiality of the first clutch and the second clutch and the stability of displacement of the two are improved by arranging the transmission rod, the reset of the transmission rod is facilitated by arranging the first reset spring, the hand feeling when the key is inserted is improved, and the reliability of the utility model is improved. The first clutch is arranged at one end of the accommodating groove and the other end of the through hole, and the second clutch is arranged in the lock cylinder, when the utility model is installed on the automatic door lock, an active paddle or other transmission part is installed at the movable head and is transmission matched with the electric mechanism of the automatic door lock, so that the electric mechanism drives the movable head through the active paddle to control the first clutch to drive the dial to rotate, and the unlocking or locking is realized, thereby the electric mechanism can be quickly started to unlock or lock. The second clutch is arranged in the lock cylinder, when others control the lock cylinder to drive the second clutch to rotate by a tool, the second clutch cannot control the dial to rotate without displacement out of the lock cylinder, so that the lock cylinder can only idle, thereby the anti-theft performance of the utility model is improved.In the locked state of the lock cylinder, the anti-rotation block is located in the anti-rotation groove, and the limiting edge is limited and fixed by the cooperation of the first anti-picking groove and the second anti-picking groove, thereby improving the anti-theft effect and reducing the probability of technical unlocking by others; when the lock cylinder needs to be opened, the key matched with the lock cylinder is inserted into the lock barrel through the lock hole, the blade feet on the blade and the auxiliary sheet match the curve on the key, displacement is generated, the opening groove corresponds to the limiting edge on the lock post, the lock post is displaced towards the opening groove, the anti-rotation block is displaced out of the anti-rotation groove, the lock barrel can be rotated by rotating the key, and then the opening and closing of the lock cylinder are realized; when the key is pulled out, the blade and the auxiliary sheet are reset by the blade spring, and the auxiliary sheet cooperates with the blade to control the lock post to be displaced towards the anti-rotation groove to the rotating block into the rotating groove for limiting. By setting the limiting spring, the lock post can be conveniently pushed into the opening groove after the key cooperates with the blade and the auxiliary sheet to generate displacement, thereby improving the convenience and reliability of the lock cylinder in opening by matching the key. By setting the limiting edge, the limiting edge can conveniently enter the opening groove, and the first anti-picking groove and the second anti-picking groove can conveniently limit the limiting edge, thereby improving the reliability of the utility model. By setting the auxiliary sheet, the opening difficulty can be improved, and the anti-theft performance of the utility model can be further improved. By setting the first anti-picking groove and the second anti-picking groove, the lock post can be fixed when the blade opening groove is in a chaotic state, thereby increasing the difficulty of technical opening of the utility model and enhancing the anti-theft performance of the utility model.
[0008] The utility model further sets up, the sealing pin is screwed or riveted in the limiting hole.
[0009] Adopt above -mentioned structure, through the cooperation of sealing pin and limiting hole screwing can conveniently the replacement of idling stop piece, through riveting sealing pin in the limiting hole, can improve the connecting strength between sealing pin and lock shell, thereby improved the stress intensity of sealing pin.
[0010] The utility model further sets up, the mounting hole is set up with the locating groove that idling stop piece axial direction is abutted.
[0011] In the above structure, by setting the locating groove, the positioning and installation of the idling stop piece can be facilitated, thereby improving the assembly efficiency of the utility model.
[0012] The utility model further sets up, the transmission rod one end outside first clutch is equipped with anti -drop flange.
[0013] Adopt above -mentioned structure, can conveniently transmission rod also can be limited to first clutch, thereby improved the stability and reliability of clutch mechanism.
[0014] The utility model further sets up, the first clutch and the second clutch on the clamping block are symmetrically set up with two groups relative to the axial direction of the dial.
[0015] By the above structure, the key can be rotated by 180 degrees to realize unlocking or locking, the structural strength of the first clutch and the second clutch can be improved, the service life of the first clutch and the second clutch is prolonged, and the reliability of the utility model is improved.
[0016] The utility model further sets up, the movable head and lock end portion all have the clamping spring of being located the both sides of the dolly.
[0017] By the above structure, the dolly can be limited, the stability of the dolly is improved, left and right shaking is avoided, and the reliability of the utility model is improved.
[0018] By the above structure, the unlocking difficulty of the utility model can be increased, and the anti-theft performance of the utility model can be further improved.
[0019] The utility model further sets up, the arc mouth that is cooperated with the blade spring end portion is set up on the abutment block.
[0020] By the above structure, the blade spring can be cooperated with the installation channel through the abutment block, the stability of the blade spring is improved, the blade spring is arranged on the blade, the force is more uniform, the plug-in feel of the key is more smooth, assembly is more convenient, and the processing cost is low.
[0021] The utility model further sets up, the lock piece assembly is spaced apart and is provided with a plurality of groups relative to the key insertion direction.
[0022] By the above structure, the unlocking difficulty of the utility model can be further increased, the anti-theft performance of the utility model can be further improved, and the unlocking feel of the utility model can be increased.
[0023] The utility model further sets up, the arc-shaped groove that is cooperated with the first anti-dialing groove, the second anti-dialing groove is set up on the side of the limiting edge towards the blade.
[0024] By the above structure, the firmness of the first anti-dialing groove and the second anti-dialing groove to the limiting edge can be further improved, and the anti-theft performance of the utility model can be further improved.
[0025] The utility model further sets up, a plurality of first anti-dialing grooves, second anti-dialing grooves are arranged towards the lock cylinder radial direction, and are zigzag.
[0026] By the above structure, the first anti-dialing groove and the second anti-dialing groove can be limited to the limiting edge from different positions, and the tin paper can be further avoided from passing between the limiting edge and the opening groove, and the anti-theft performance of the utility model is improved.
[0027] The present invention is further configured such that the distance between the first anti-displacement groove and the bottom of the blade is higher than the distance between the second anti-displacement groove and the bottom of the blade.
[0028] The above structure facilitates the auxiliary plate's control over the lock pin's displacement toward the anti-rotation groove when the key is removed, thus improving the reliability of this invention.
[0029] The present invention is further configured such that the blade feet on the blade are staggered from the blade feet on the auxiliary blade.
[0030] By adopting the above structure, the difficulty of unlocking this utility model can be further increased, thereby further improving the anti-theft performance of this utility model.
[0031] The present invention is further configured such that the anti-rotation block is provided in two sets, respectively located at both ends of the locking post, and the limiting spring is located between the two sets of anti-rotation blocks.
[0032] The above structure improves the stability of the locking pin and the limiting spring, thereby enhancing the reliability of this invention.
[0033] The present invention is further configured such that two sets of anti-rotation grooves are symmetrically arranged relative to the axial direction of the lock housing.
[0034] The above structure allows users to easily turn the key 180 degrees to unlock and lock, and facilitates user identification operations. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the structure of this utility model.
[0036] Figure 2 This is a schematic diagram of the structure of the dial being sleeved on the movable head and the locking cylinder in this utility model.
[0037] Figure 3 This is a cross-sectional view of part of the structure of this utility model. Figure 1 .
[0038] Figure 4 This is a schematic diagram of the structure of the movable head, locking cylinder, and clutch mechanism in this utility model.
[0039] Figure 5 This is a schematic diagram of the disassembled structure of a part of the present utility model. Figure 1 .
[0040] Figure 6 This is a schematic diagram of the structure of the clutch mechanism and the dial wheel in this utility model.
[0041] Figure 7 This is a cross-sectional view of part of the structure of this utility model. Figure 2 .
[0042] Figure 8 This is a schematic diagram of the disassembled structure of a part of the present utility model. Figure 2 .
[0043] Figure 9 This is a cross-sectional view of the lock shell in this utility model.
[0044] Figure 10 This is a cross-sectional view of the lock cylinder in this utility model.
[0045] Figure 11 This is a schematic diagram of the main structure of the locking plate assembly in this utility model.
[0046] Figure 12 This is a schematic diagram showing the disassembled structure of the locking plate assembly in this utility model.
[0047] The labels in the diagram mean: 1-lock case; 2-shifting wheel; 3-lock cylinder; 11-mounting hole; 31-lock hole; 4-free spin stop; 41-lock opening; 42-annular groove; 12-limiting hole; 5-sealing pin; 13-positioning groove; 6-clutch mechanism; 62-first clutch element; 63-second clutch element; 64-transmission rod; 65-first return spring; 66-second return spring; 21-through hole; 61-accommodating groove; 01-block; 02-slot; 641-limiting plate; 631-connection port; 642-anti-detachment flange; 7- Snap ring; 32-Leaf opening; 8-Locking plate assembly; 81-Leaf; 82-Auxiliary plate; 03-Insertion; 04-Leaf foot; 33-Installation channel; 331-Leaf spring; 811-Abutting block; 34-Installation port; 9-Locking post; 91-Limiting ridge; 341-Limiting groove; 92-Anti-rotation block; 93-Limiting spring; 94-Cover plate; 12-Anti-rotation groove; 05-Opening groove; 812-First anti-push-out groove; 821-Second anti-push-out groove; 813-Arch opening; 911-Arch-shaped groove; 06-Moving head; 07-Moving paddle. Detailed Implementation
[0048] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0049] It should be noted that all directional indicators (such as up, down, left, right, front, back, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0050] like Figures 1 to 11The automatic lock cylinder with good anti-theft performance shown comprises a lock shell 1, a dial 2, a movable head 06, a lock core 3, and a movable dial 07 in transmission cooperation with the movable head 06, the lock core 3 is coaxially provided with a lock hole 31 relative to an installation hole 11, the installation hole 11 is provided with an idle baffle 4 at an outer end of the lock core 3, the idle baffle 4 is provided with a lock port 41 corresponding to the lock hole 31 at an end thereof, an annular groove 42 is formed on an outer circumferential wall of the idle baffle 4, a limiting hole 12 is formed on the lock shell 1 in a radial direction relative to the annular groove 42, and a sealing pin 5 is installed in the limiting hole 12 and inserted into the annular groove 42;
[0051] Further comprising a clutch mechanism 6, the clutch mechanism 6 comprises a first clutch 62, a second clutch 63, a transmission rod 64, a first return spring 65, and a second return spring 66, the dial 2 is rotatably sleeved at an end of the movable head 06 and an end of the lock core 3, a through hole 21 is formed in the dial 2 and corresponds to the first clutch 62 and the second clutch 63, a containing groove 61 is formed in the movable head 06 and contains the first clutch 62, a clamping block 01 is formed on an outer circumferential wall of the first clutch 62 and the second clutch 63 and is arranged in a radial direction thereof, a clamping groove 02 is formed on an inner wall of the containing groove 61, the through hole 21, and an end of the lock core 3 and corresponds to the clamping block 01, the clamping groove 02 at the through hole 21 is arranged in a through manner, the first clutch 62 and the second clutch 63 are rotatably sleeved on the transmission rod 64, the first return spring 65 is sleeved on the transmission rod 64 and located in the second clutch 63, a limiting plate 641 is arranged at an end of the transmission rod 64 and abuts against the first return spring 65, the second return spring 66 is located in the containing groove 61 and abuts against an end face of the first clutch 62 and is coaxially arranged with the transmission rod 64, a connecting port 631 is formed on an end of the second clutch 63 facing the lock port 41 in a radial direction thereof, one end of the first clutch 62 is located in the containing groove 61 and the other end is located in the through hole 21, and the second clutch 63 is located in the lock core 3;
[0052] The lock barrel 3 is provided with a vane port 32 in the radial direction, the vane port 32 is provided with a lock piece assembly 8, the lock piece assembly 8 comprises a vane 81 and an auxiliary piece 82 on one side of the vane 81, the vane 81 and the auxiliary piece 82 are provided with an insertion port 03 corresponding to the lock hole 31, the vane 81 and the auxiliary piece 82 are provided with a vane foot 04 towards the inside of the insertion port 03, the lock barrel 3 is provided with a mounting channel 33 on one side of the vane port 32 in the radial direction, the mounting channel 33 is provided with a vane spring 331, one end of the vane 81 is provided with an abutting block 811 abutting with the vane spring 331, the outer wall of the lock barrel 3 is provided with a mounting port 34, the mounting port 34 is provided with a lock column 9, the side of the lock column 9 towards the vane 81 is provided with a limiting edge 91, the mounting port 34 is provided with a limiting groove 341 matched with the limiting edge 91, the vane port 32 is communicated with the limiting groove 341, the side of the lock column 9 opposite to the limiting edge 91 is provided with an anti-rotation block 92 protruding upwards, the lock column 9 is abutted with a limiting spring 93, the limiting spring 93 is abutted with a cover piece 94, the lock shell 1 is provided with an anti-rotation groove 12 corresponding to the anti-rotation block 92, the vane 81 and the auxiliary piece 82 are provided with an opening groove 05 towards the limiting convex edge, the vane 81 is provided with a first anti-pulling groove 812 on both sides of the opening groove 05, and the auxiliary piece 82 is provided with a second anti-pulling groove 821 on both sides of the opening groove 05.
[0053] In the structure, the idle blocking ring is arranged to reduce the depth of the screwdriver insertion when the person passes through the lock hole 41 by the screwdriver or other tools, and the thickness of the door lock panel makes the idle blocking piece 4 idle relative to the axial direction when the person rotates the screwdriver, so as to avoid the damage of the lock cylinder 3 by the person, and improve the anti-theft performance of the utility model. The annular groove 42 is matched with the sealing pin 5 to limit the axial direction of the idle blocking piece 4, so as to improve the stability of the idle blocking piece 4 and the reliability of the utility model. The limiting hole 12 is arranged to facilitate the installation of the sealing pin 5, so as to improve the convenience of the assembly of the utility model. The matching key is inserted into the lock hole 31 of the lock cylinder 3, when the key end is inserted into the connecting port 631, the transmission rod 64 is continuously inserted forward to drive the second clutch 63 and the first clutch 62 to displace towards the movable head 06, until the first clutch 62 enters the accommodating groove 61 of the movable head 06, the key cannot continue to displace forward, the second clutch 63 displaces into the through hole 21 of the dial 2, the key is rotated, the clamping block 01 of the second clutch 63 is matched with the clamping groove 02 of the dial 2, the second clutch 63 drives the dial 2 to rotate, and the unlocking and locking of the door lock are realized; after the unlocking or locking is completed, the clamping block 01 of the second clutch 63 is reset corresponding to the clamping groove 02 of the lock cylinder 3 by rotating the key, the second reset spring 66 is arranged to generate an elastic reset force on the first clutch 62, so as to generate a pushing force on the second clutch 63 by the first clutch 62, when the key drives the second clutch 63 to rotate and reset, the clamping block 01 of the second clutch 63 is accurately reset corresponding to the clamping groove 02 of the lock cylinder 3, and the key is convenient to pull out. The transmission rod 64 is arranged to improve the coaxiality of the first clutch 62 and the second clutch 63 and the stability of the displacement of the two, the first reset spring 65 is arranged to facilitate the reset of the transmission rod 64, improve the hand feeling when the key is inserted, and improve the reliability of the utility model. The first clutch 62 is arranged at one end in the accommodating groove 61 and at the other end in the through hole 21, and the second clutch 63 is arranged in the lock cylinder 3, so that when the utility model is installed on the automatic door lock, an active paddle 07 or other transmission part is installed at the movable head 06 to be transmission matched with the electric mechanism of the automatic door lock, so that the electric mechanism drives the movable head 06 through the active paddle to control the first clutch 62 to drive the dial 2 to rotate, and the unlocking or locking is realized, so that the electric mechanism can be quickly started to unlock or lock. The second clutch 63 is arranged in the lock cylinder 3, so that when the person drives the second clutch 63 to rotate by the tool, the second clutch 63 cannot control the dial 2 to rotate without displacing out of the lock cylinder 3, so that the lock cylinder 3 can only idle, and the anti-theft performance of the utility model is improved.In the locked state of the lock cylinder, the anti-rotation block 92 is located in the anti-rotation groove 12, and the limiting edge 91 is limited and fixed by the cooperation of the first anti-picking groove 812 and the second anti-picking groove 821, thereby improving the anti-theft effect and reducing the probability of technical unlocking by others; when the lock cylinder needs to be opened, the key matched with the lock cylinder is inserted into the lock barrel 3 through the lock hole 31, the blade 81 and the blade foot 04 on the auxiliary sheet 82 are matched with the curve on the key, displacement is generated, the opening groove 05 corresponds to the limiting edge 91 on the lock column 9, the lock column 9 is displaced towards the opening groove 05, the anti-rotation block 92 is displaced out of the anti-rotation groove 12, and the rotation of the lock barrel 3 can be realized by rotating the key, and the opening and closing of the lock cylinder is realized; when the key is pulled out, the blade 81 and the auxiliary sheet 82 are reset by the blade spring 331, and the auxiliary sheet 82 cooperates with the blade 81 to control the lock column 9 to be displaced towards the anti-rotation groove 12 to be limited in the rotation groove by the first anti-picking groove 812 and the second anti-picking groove 821. By setting the limiting spring 93, the lock column 9 can be conveniently pushed into the opening groove 05 after the displacement of the key cooperating with the blade 81 and the auxiliary sheet 82, thereby improving the convenience and reliability of the lock opening of the utility model by matching the key. By setting the limiting edge 91, the limiting edge 91 can be conveniently entered into the opening groove 05, and the first anti-picking groove 812 and the second anti-picking groove 821 can conveniently limit the limiting edge 91, thereby improving the reliability of the utility model. By setting the auxiliary sheet 82, the lock opening difficulty can be improved, thereby further improving the anti-theft performance of the utility model. By setting the first anti-picking groove 812 and the second anti-picking groove 821, the lock column 9 can be fixed when the blade 81 opening groove 05 is in a chaotic state, thereby increasing the difficulty of technical opening of the utility model and enhancing the anti-theft performance of the utility model.
[0054] In the embodiment, the sealing pin 5 is screwed or riveted in the limiting hole 12.
[0055] By screwing the sealing pin 5 and the limiting hole 12, the replacement of the idle stopper 4 can be facilitated; by riveting the sealing pin 5 in the limiting hole 12, the connection strength between the sealing pin 5 and the lock shell 1 can be improved, thereby improving the stress strength of the sealing pin 5.
[0056] In the embodiment, the mounting hole 11 is provided with a positioning groove 13 abutting against the axial direction of the idle stopper 4.
[0057] In the above structure, the positioning groove 13 can facilitate the positioning and installation of the idle stopper 4, thereby improving the assembly efficiency of the utility model.
[0058] In the embodiment, the anti-dropping flange 642 is arranged at one end of the transmission rod 64 outside the first clutch 62.
[0059] Adopting the above structure, the transmission rod 64 can also limit the first clutch 62, thereby improving the stability and reliability of the clutch mechanism 6.
[0060] In the embodiment, the clamping blocks 01 on the first clutch 62 and the second clutch 63 are symmetrically arranged in two groups relative to the axial direction of the dial.
[0061] Adopting the above structure, the key can be rotated by 180° to realize unlocking or locking, the structural strength of the first clutch 62 and the second clutch 63 is improved, the service life of the first clutch 62 and the second clutch 63 is prolonged, and the reliability of the utility model is improved.
[0062] In the embodiment, the movable head 06 and the end of the lock cylinder 3 are clamped with clamping springs 7 located on both sides of the dial 2.
[0063] Adopting the above structure, the dial 2 can be limited, thereby improving the stability of the dial 2, avoiding left and right shaking, and improving the reliability of the utility model.
[0064] In the embodiment, the auxiliary sheet 82 is provided with two auxiliary sheets 82 located on both sides of the blade 81.
[0065] Adopting the above structure, the unlocking difficulty of the utility model is increased, thereby further improving the anti-theft performance of the utility model.
[0066] In the embodiment, the abutting block 811 is provided with an arc opening 813 matched with the end of the blade spring 331.
[0067] Adopting the above structure, the blade 81 can be matched and installed with the blade spring 331 through the abutting block 811 and the channel 33, thereby improving the stability of the blade spring 331, the blade 81 is stressed more evenly by arranging the blade spring 331 on the blade 81, the key is more smooth in plugging and unplugging, the assembly is more convenient, and the processing cost is low.
[0068] In the embodiment, the lock piece assembly 8 is arranged in a plurality of groups relative to the key insertion direction.
[0069] Adopting the above structure, the unlocking difficulty of the utility model is further increased, thereby further improving the anti-theft performance of the utility model and increasing the hand feeling of unlocking of the utility model.
[0070] In the embodiment, the limiting edge 91 is provided with an arc-shaped groove 911 matched with the first anti-dialing groove 812 and the second anti-dialing groove 821 on the side facing the blade 81.
[0071] Adopting the above structure, the firmness of the first anti-probing groove 812 and the second anti-probing groove 821 to limit the limiting edge 91 can be further improved, thereby further improving the anti-theft performance of the utility model.
[0072] In the embodiment, the first anti-probing groove 812 and the second anti-probing groove 821 are provided with a plurality of sawtooth shapes in the radial direction of the lock cylinder 3.
[0073] Adopting the above structure, the first anti-probing groove 812 and the second anti-probing groove 821 can be positioned at different positions of the limiting edge 91, and the tin paper can be further prevented from passing between the limiting edge 91 and the opening groove 05, thereby improving the anti-theft performance of the utility model.
[0074] In the embodiment, the distance between the first anti-probing groove 812 and the bottom of the blade 81 is higher than the distance between the second anti-probing groove 821 and the bottom of the blade 81.
[0075] Adopting the above structure, the auxiliary sheet 82 can control the displacement of the lock post 9 in the anti-rotation groove 12 when the key is pulled out, thereby improving the reliability of the utility model.
[0076] In the embodiment, the blade foot 04 on the blade 81 is staggered with the blade foot 04 on the auxiliary sheet 82.
[0077] Adopting the above structure, the unlocking difficulty of the utility model can be further increased, thereby further improving the anti-theft performance of the utility model. The three independent closed snake curves on the matching key, when the blade foot 04 enters the key curve, the blade 81 cannot freely move left and right, and the use of different keys to unlock will not cause the keys to move together. The mutual opening of the lock cylinder and the anti-impact opening play a great auxiliary role.
[0078] In the embodiment, the anti-rotation block 92 is provided with two groups, which are located at both ends of the lock post 9, and the limiting spring 93 is located between the two groups of anti-rotation blocks 92.
[0079] Adopting the above structure, the stability of the lock post 9 and the limiting spring 93 can be improved, thereby improving the reliability of the utility model.
[0080] In the embodiment, the anti-rotation groove 12 is symmetrically provided with two groups in the axial direction of the lock shell 1.
[0081] Adopting the above structure, the user can rotate the key by 180 degrees to unlock and lock, and the user can easily identify the operation.
[0082] The above merely is the preferred embodiment of the present application, it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, under the premise of, can also make a number of improvements and variations, the above hypothetical these improvements and variations should also be considered as the protection scope of the present application.
Claims
1. An automatic lock cylinder with good anti-theft performance, comprising a lock case, a dial wheel, a movable head, a lock cylinder, and a movable paddle that drives the movable head, wherein the lock case has a mounting hole for installing the lock cylinder, and the lock cylinder has a lock hole coaxially formed opposite the mounting hole, characterized in that: The mounting hole is provided with a free-spinning baffle at the outer end of the lock cylinder. The end of the free-spinning baffle is provided with a lock opening corresponding to the lock hole. An annular groove is provided on the outer circumferential wall of the free-spinning baffle. A limiting hole is provided on the lock shell in the radial direction relative to the annular groove. A sealing pin inserted into the annular groove is installed in the limiting hole. It also includes a clutch mechanism, which comprises a first clutch element, a second clutch element, a transmission rod, a first return spring, and a second return spring arranged coaxially. The two ends of the dial are rotatably sleeved on the end of the movable head and the end of the lock cylinder, respectively. The dial has through holes corresponding to the first and second clutch elements. The movable head has a receiving groove for accommodating the first clutch element. Both the first and second clutch elements have locking blocks arranged radially on their outer circumferential walls. The receiving groove, the inner walls of the through holes, and the end of the lock cylinder all have corresponding locking blocks. The locking slots are connected, and the slots at the through holes are through-holes. The first clutch and the second clutch are rotatably sleeved on the transmission rod. The first return spring is sleeved on the transmission rod and located inside the second clutch. The end of the transmission rod is provided with a limiting plate that abuts against the first return spring. The second return spring is located in the receiving groove and abuts against the end face of the first clutch, and is coaxial with the transmission rod. The end of the second clutch facing the lock opening has a connection port in its radial direction. One end of the first clutch is located in the receiving groove, and the other end is located in the through hole. The second clutch is located inside the lock cylinder. The lock cylinder has a blade opening in the radial direction, and a lock plate assembly is installed inside the blade opening. The lock plate assembly includes a blade and an auxiliary plate located on one side of the blade. Both the blade and the auxiliary plate have insertion slots corresponding to the lock holes. Both the blade and the auxiliary plate have blade feet facing inward towards the insertion slots. A mounting channel is formed in the radial direction of the lock cylinder on one side of the blade opening, and a leaf spring is installed within the mounting channel. One end of the blade has an abutment block that abuts against the leaf spring. A mounting opening is formed on the outer wall of the lock cylinder, and a lock pin is installed within the mounting opening. A limiting ridge is provided on the side of the column facing the blade. A limiting groove adapted to the limiting ridge is opened in the mounting opening. The blade opening is connected to the limiting groove. An anti-rotation block is provided on the side of the locking column opposite to the limiting ridge. A limiting spring abuts on the locking column. A cover plate abuts on the limiting spring. An anti-rotation groove is opened on the lock housing at the position corresponding to the anti-rotation block. An opening groove is opened on the side of the blade and the auxiliary plate facing the limiting ridge. A first anti-push groove is opened on both sides of the opening groove on the blade. A second anti-push groove is opened on both sides of the opening groove on the auxiliary plate.
2. The automatic lock cylinder with good anti-theft performance according to claim 1, characterized in that: The sealing pin is screwed or riveted into the limiting hole.
3. The automatic lock cylinder with good anti-theft performance according to claim 2, characterized in that: The mounting hole is provided with a positioning groove that abuts against the axial direction of the idling baffle.
4. The automatic lock cylinder with good anti-theft performance according to claim 1, characterized in that: The transmission rod has an anti-disengagement flange at one end located outside the first clutch component.
5. The automatic lock cylinder with good anti-theft performance according to claim 4, characterized in that: The first clutch and the second clutch each have two sets of locking blocks symmetrically arranged relative to the axial direction of the dial wheel.
6. The automatic lock cylinder with good anti-theft performance according to claim 5, characterized in that: Both the movable head and the end of the lock cylinder are engaged with retaining rings located on both sides of the dial.
7. The automatic lock cylinder with good anti-theft performance according to claim 1, characterized in that: The auxiliary plate has two parts located on both sides of the blade. The abutment block has an arc-shaped opening that matches the end of the blade spring. The locking plate assembly has several sets of parts spaced apart relative to the key insertion direction. The limiting ridge has an arc-shaped groove on the side facing the blade that matches the first anti-picking groove and the second anti-picking groove.
8. The automatic lock cylinder with good anti-theft performance according to claim 7, characterized in that: The first anti-picking groove and the second anti-picking groove are each provided with several in the radial direction of the lock cylinder, and are in a sawtooth shape. The distance between the first anti-picking groove and the bottom of the blade is higher than the distance between the second anti-picking groove and the bottom of the blade. The blade feet on the blade are staggered from the blade feet on the auxiliary plate.
9. The automatic lock cylinder with good anti-theft performance according to claim 1, characterized in that: The anti-rotation block is provided in two sets, located at both ends of the locking pin, and the limiting spring is located between the two sets of anti-rotation blocks.
10. The automatic lock cylinder with good anti-theft performance according to claim 5, characterized in that: The anti-rotation grooves are arranged in two sets symmetrically relative to the axial direction of the lock housing.