WO2016045643A1 - 阴极锁以及使该阴极锁切换常开状态与常闭状态的方法 - Google Patents

阴极锁以及使该阴极锁切换常开状态与常闭状态的方法 Download PDF

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Publication number
WO2016045643A1
WO2016045643A1 PCT/CN2015/093186 CN2015093186W WO2016045643A1 WO 2016045643 A1 WO2016045643 A1 WO 2016045643A1 CN 2015093186 W CN2015093186 W CN 2015093186W WO 2016045643 A1 WO2016045643 A1 WO 2016045643A1
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Prior art keywords
brake
lock
solenoid
brake lever
block
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PCT/CN2015/093186
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English (en)
French (fr)
Inventor
张宗志
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上海欧一安保器材有限公司
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Publication date
Application filed by 上海欧一安保器材有限公司 filed Critical 上海欧一安保器材有限公司
Priority to US15/513,378 priority Critical patent/US10519695B2/en
Priority to GB1705949.4A priority patent/GB2545383B/en
Priority to AU2015320101A priority patent/AU2015320101B2/en
Publication of WO2016045643A1 publication Critical patent/WO2016045643A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0696—Controlling mechanically-operated bolts by electro-magnetically-operated detents locking the bolt by an electromagnet in the striker
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E05B47/0003—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core
    • E05B47/0004—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core said core being linearly movable
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0046—Electric or magnetic means in the striker or on the frame; Operating or controlling the striker plate
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/08—Electrical using electromagnets or solenoids

Definitions

  • the present invention relates to a cathode lock, and more particularly to a cathode lock that can be easily replaced in a normally open or normally closed state.
  • the existing cathode locks generally use the lock tongue on the door to push the lock of the lock to rotate or not to realize the process of unlocking or locking.
  • they need to close the door most of the time to keep the door normally closed, but in a special time period, such as the decoration stage, the door needs to be opened, in order to facilitate the access of the decoration personnel, Keep the lock normally open.
  • the door In the normal non-business hours of the theater, the door needs to be normally closed. In the business stage, the door needs to be normally open.
  • the existing door locks generally cannot satisfy the free switching of the normally open state and the normally closed state, so that it is necessary to design different kinds of door locks, which inevitably increases the production cost.
  • the present invention provides a cathode lock and a method for switching the cathode lock to a normally open state and a normally closed state, wherein the cathode lock can realize the freedom of the normally open state and the normally closed state of the door lock by simple adjustment. Switching reduces production costs and increases the utilization of the cathode lock.
  • the present invention provides a cathode lock comprising a lock body mounted on a door or a door frame and a lock tongue that can be engaged with the lock body, and the lock body is provided with a lock that can be engaged with the lock tongue
  • the buckle and the lock body are also provided with a solenoid which can generate electromagnetic force when energized, and the end of the solenoid is connected with a brake device capable of catching the lock, and the solenoid is energized to generate electromagnetic force, and the electromagnetic force acts.
  • the brake device is driven to move or disengage the brake device from the buckle.
  • the braking device includes a brake lever that is movably disposed on the lock body.
  • the brake lever is connected to the solenoid, and the brake lever is sleeved with a brake block that can catch the buckle, and the brake is braked.
  • the block is fixed to the brake lever by a fastening screw provided on one side of the brake block, and the loosening screw can be adjusted.
  • the position of the brake block on the brake lever; the solenoid energizes to generate an electromagnetic force, and under the action of the electromagnetic force, the brake lever and the brake block fixed on the brake lever are moved to offset the brake block and the lock Or separate.
  • an adjustment pressure spring is disposed on the brake lever between the brake block and the solenoid to adjust the position of the brake pad on the brake lever.
  • the solenoid includes a mandrel disposed inside the solenoid and a wire wound around the bobbin, the solenoid electrically connecting the control circuit board, and controlling the circuit board to control the energization and disconnection of the solenoid Electric, the solenoid is energized, and electromagnetic force is generated to drive the mandrel to move.
  • the end of the mandrel is connected to the brake lever to drive the brake lever to move.
  • an end sleeve is disposed between the end of the mandrel and the brake lever, and the surface area of the end sleeve is larger than the surface area of the mandrel and the brake lever to facilitate the connection of the mandrel to the brake lever.
  • the present invention also provides a method for switching a cathode lock to a normally open state and a normally closed state, comprising the steps of: normally closing the state to a normally open state: loosening the fastening screw, adjusting the brake block at The position on the brake lever separates the brake block from the lock; tighten the fastening screw to fix the brake block on the brake lever, and it is unlocked at this time; when the door is closed, the solenoid is energized, and the solenoid is inside.
  • the mandrel is driven by the electromagnetic force to drive the brake lever to move, the brake lever drives the brake block on the brake lever to move to the lock, the brake block is against the lock, and the door is locked; when switching to the normally closed state: loose Open the fastening screw, adjust the position of the brake block on the brake lever, and make the brake block abut on the lock; tighten the fastening screw to fix the brake block on the brake lever, at this time in the locked state;
  • the solenoid is energized, and the mandrel in the solenoid is driven by the electromagnetic force to drive the brake lever to move, the brake lever drives the brake block to move, the brake block is separated from the lock, and the door is unlocked.
  • the brake block when the normally open state is adjusted to the normally closed state, the brake block is turned to the side of the solenoid until it slides to the fixed position, and the compression spring is compressed and then the fastening screw is locked.
  • the brake pad when the normally closed state is adjusted to the normally open state, the brake pad is braked
  • the position on the lever is caused by the tension of the brake spring to automatically slide the brake block to the position away from the brake block, and then tighten the fastening screw.
  • the invention has the advantages that the fastening screw of the cathode lock of the invention is provided, and the normal state of the cathode lock can be adjusted by adjusting the fastening screw, or the normally open or normally closed, thereby realizing the freedom of the normally open state and the normally closed state. Switching reduces the production cost of the enterprise and also increases the utilization of the cathode lock.
  • Figure 1 is a schematic view showing the brake block of the cathode lock of the present invention jamming the lock
  • FIG. 2 is a schematic view of the brake block on the cathode lock of the present invention not stuck on the lock;
  • FIG. 3 is a schematic view showing the structure of a cathode lock brake device according to the present invention.
  • the cathode lock of the present invention comprises a lock body 1 mounted on a door or a door frame and a lock tongue (not shown) engageable with the lock body 1, wherein
  • the lock body 1 is provided with a lock 6 which can be engaged with the lock tongue.
  • the lock body 1 is also provided with a solenoid 9 which can generate electromagnetic force when energized, and the end of the solenoid 9 can be stuck.
  • the brake device 10 of the buckle 6 energizes the solenoid 9 to generate an electromagnetic force, and the brake device 10 is moved by the electromagnetic force to abut or separate the brake device 10 from the buckle 6.
  • the brake device 10 includes a brake lever 2 movably disposed on the lock body 1, the brake lever 2 is in contact with the solenoid 9, and the brake lever 2 is sleeved on the brake rod 2
  • the brake block 4 of the lock 6, the brake block 4 is fixed to the brake lever 2 by a fastening screw 5 provided on one side of the brake block 4, and the brake screw 5 is loosened to adjust the brake block 4 position on the brake lever 2, thereby achieving the switching of the normally open normally closed;
  • the solenoid 9 energizes to generate the electromagnetic force, drives the solenoid mandrel under the action of the electromagnetic force, the mandrel pushes the brake lever 2 and fixes
  • the brake block 4 on the brake lever 2 is moved to abut or separate the brake block 4 from the striker 6.
  • An adjustment pressure spring 7 is disposed on the brake lever 2 between the brake block 4 and the solenoid 9, and the compression compression spring 7 is manually compressed to adjust the normally closed state of the lock to a normally open state.
  • the adjustment of the compression spring release can automatically push the brake block to the limit position of the brake lever 2, that is, the adjustment from normally open to normally closed, and the brake block 4 is provided with brake on the other side of the brake lever 2.
  • the spring 3 can return the brake lever 2 to the state before the energization by the tension of the brake spring 3 when the power is turned off.
  • the solenoid 9 includes a mandrel 91 disposed inside the solenoid 9 and an enameled wire (not shown) wound around the outer bobbin of the mandrel 91.
  • the solenoid 9 is electrically connected to the control circuit board (not shown) Shown), by controlling the circuit board to control the energization and power-off of the solenoid, the control circuit board can realize the control of the control circuit board by the prior art such as swiping or password or fingerprint, and the solenoid 9 is energized to generate electromagnetic force.
  • the mandrel 91 is moved, and the end of the mandrel 91 contacts the brake lever 2 to drive the movement of the brake lever 2.
  • An end sleeve 8 is disposed between the end of the mandrel 91 and the brake lever 2, and the end of the end sleeve 8 is provided.
  • the area of the portion is larger than the mandrel 91 and the end area of the brake lever to facilitate the connection of the mandrel 91 to the brake lever 2.
  • the invention also provides a method for switching the normally closed and normally open states by using the above cathode lock, comprising the following steps: a normally open state: loosening the fastening screw, adjusting the position of the brake block on the brake lever, so that The brake block is separated from the lock; the fastening screw is tightened to fix the brake block on the brake lever; when the door is closed, the solenoid is energized, and the mandrel in the solenoid is driven by the electromagnetic force to drive the brake lever to move.
  • the rod drives the brake block and moves the brake block to the lock, the brake block abuts the lock, and the door locks; when the normally open state is switched to the normally closed state: the fastening screw is loosened, and the brake block is adjusted
  • the tension of the compression spring automatically pushes the brake block to the corresponding position on the brake lever, so that the brake block abuts the lock; tighten the fastening screw to fix the brake block on the brake lever, at this time Lock state; when the door is opened, the solenoid is energized, and the mandrel in the solenoid is driven by the electromagnetic force to drive the brake lever to move, the brake lever drives the brake block to move, the brake block is separated from the lock, and the door is unlocked.
  • the brake block When the normally open state is adjusted to the normally closed state, the brake block is moved to the side of the solenoid until it slides to a fixed position, which is calculated according to the magnetic force of the solenoid and the spring force of the spring, and different snails are selected.
  • the wire tube and the spring are different in fixing position, and the compression adjusting spring is compressed at the same time, and then the fastening screw is locked.
  • the magnetic lock of the present invention can be set to any of two states during normal operation, that is, a normally open state or a normally closed state.
  • a normally open state the solenoid is not energized, and the brake block is unlocked.
  • the lock is unlocked; when the solenoid is energized, the solenoid mandrel strikes the end sleeve to drive the brake lever and the brake block to displace, compressing the brake spring, and the brake block is locked against the lock, and can be locked; After the electric power relies on the restoring force of the brake spring, the brake lever, the brake block and the end sleeve are reset to realize unlocking; when the normally closed state, the solenoid is not energized, the brake block is against the lock, and the lock is locked.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Braking Arrangements (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)

Abstract

一种阴极锁，包括安装在门或门框上的锁体（1）以及能与锁体（1）相锁合的锁舌，锁体（1）上设置有能与锁舌相扣合的锁扣（6），锁体（1）上还安装有通电即能产生电磁力的螺线管（9），螺线管（9）的端部连接有能卡住锁扣（6）的制动装置（10），螺线管（9）通电产生电磁力，在电磁力的作用下带动制动装置（10）运动，以使制动装置（1）与锁扣（6）相抵或分离。还公开了一种阴极锁切换常开状态与常闭状态的方法。

Description

阴极锁以及使该阴极锁切换常开状态与常闭状态的方法 技术领域
本发明涉及一种阴极锁，尤其涉及一种能够便于更换常开或者常闭状态的阴极锁。
背景技术
随着物质生活水平的不断提高，人们对锁具的要求也越来越高。
现有的阴极锁一般都是利用门上的锁舌推动锁的锁扣转动与否实现实现开锁或上锁的过程。在目前的很多场合中，例如技术类办公区，他们需要在大多数时间将门关闭，保持门的常闭状态，但在特殊的时间段，比如装修阶段需要门开启，为了方便装修人员出入，需保持锁的常开状态。影院等公共场所的安全通道，在平常非营业时间段，门需要是常闭状态，在营业阶段这门需要是常开状态。而现有的门锁一般都不能满足常开状态以及常闭状态的自由切换，这样就需要设计不同种类的门锁，无形中增加了生产成本。
发明内容
为了解决以上问题，本发明提供了一种阴极锁以及使该阴极锁切换常开状态与常闭状态的方法，该阴极锁能通过简单调整就能实现门锁常开状态与常闭状态的自由切换，降低了生产成本，提高了阴极锁的利用率。
为了实现上述目的，本发明提供了一种阴极锁，包括安装在门或门框上的锁体以及能与锁体相锁合的锁舌，锁体上设置有能与锁舌相扣合的锁扣，锁体上还安装有通电即能产生电磁力的螺线管，螺线管的端部连接有能卡住锁扣的制动装置，螺线管通电产生电磁力，在电磁力的作用下带动制动装置运动，以使制动装置与锁扣相抵或分离。
作为本发明的进一步优化，制动装置包括活动设置在锁体上的制动杆，制动杆与螺线管连接，制动杆上套设有能卡住锁扣的制动块，制动块通过设置在制动块一侧的紧固螺丝将制动块固定在制动杆上，松动紧固螺丝可调节 制动块在制动杆上的位置；螺线管通电产生电磁力，在电磁力的作用下带动制动杆以及固定在制动杆上的制动块运动，以制动块与锁扣相抵或分离。
作为本发明的进一步优化，制动块与螺线管之间的制动杆上设置有调整压簧，以调整制动块在制动杆上的位置。
作为本发明的进一步优化，螺线管包括设置在螺线管内部的芯轴以及围绕绕线架缠绕的导线，螺线管电连接控制线路板，通过控制线路板控制螺线管的通电与断电，螺线管通电，产生电磁力带动芯轴运动。
作为本发明的进一步优化，芯轴的端部连接制动杆，以带动制动杆运动。
作为本发明的进一步优化，芯轴端部与制动杆之间设置有端套，端套的表面积大于芯轴以及制动杆的表面积，以便于芯轴与制动杆的连接。
为了实现上述目的，本发明还提供了一种将阴极锁切换常开状态与常闭状态的方法，包括以下步骤：常闭状态调为常开状态：松开紧固螺丝，调整制动块在制动杆上的位置，使制动块与锁扣分离；拧紧紧固螺丝，使制动块固定在制动杆上，此时处于开锁状态；关门时，螺线管通电，螺线管内的芯轴受到电磁力作用带动制动杆运动，制动杆带动制动杆上的制动块运动到锁扣处，制动块抵住锁扣，门上锁；切换至常闭状态时：松开紧固螺丝，调整制动块在制动杆上的位置，使制动块抵在锁扣上；拧紧紧固螺丝，使制动块固定在制动杆上，此时处于上锁状态；开门时，螺线管通电，螺线管内的芯轴受到电磁力作用带动制动杆运动，制动杆带动制动块运动，制动块与锁扣分离，门开锁。
作为本发明的进一步优化，常闭状态的阴极锁切换至常开状态时，松开紧固螺丝，调整制动块在制动杆上的位置，使制动块与锁扣分离；拧紧紧固螺丝，使制动块固定在制动杆上，此时处于开锁状态；关门时，螺线管通电，螺线管内的芯轴受到电磁力作用带动制动杆运动，制动杆带动制动杆上的制动块运动到锁扣处，制动块抵住锁扣，门上锁。
作为本发明的进一步优化，常开状态调节到常闭状态时，拨动制动块向螺线管一侧直到滑动到固定位置，同时压缩调整压簧，然后锁紧紧固螺丝。
作为本发明的进一步优化，常闭状态调节到常开状态时，制动块在制动 杆上的位置通过制动弹簧的张力，使制动块自动滑动到脱离制动块的位置，然后拧紧紧固螺丝。
本发明的优势在于，本发明的阴极锁上设置紧固螺丝，通过调节紧固螺丝，就能调整阴极锁的常态，或常开或常闭，实现了常开状态与常闭状态锁的自由切换，降低了企业的生产成本，同时也提高了阴极锁的利用率。
附图概述
图1为本发明中阴极锁上的制动块卡住锁扣的示意图；
图2为本发明中阴极锁上的制动块未卡在锁扣上的示意图；
图3为本发明中阴极锁上制动装置的结构示意图。
本发明的较佳实施方式
下面，通过示例性的实施方式对本发明进行具体描述。然而应当理解，在没有进一步叙述的情况下，一个实施方式中的元件、结构和特征也可以有益地结合到其他实施方式中。
参见图1以及图2，如图所示，本发明中的阴极锁包括安装在门或门框上的锁体1以及能与锁体1相锁合的锁舌(图中未示出)，其中，锁体1上设置有能与锁舌相扣合的锁扣6，锁体1上还安装有通电即能产生电磁力的螺线管9，螺线管9的端部接触有能卡住锁扣6的制动装置10，螺线管9通电产生电磁力，在电磁力的作用下带动制动装置10运动，以使制动装置10与锁扣6相抵或分离。
进一步参见图3，如图所示，制动装置10包括活动设置在锁体1上的制动杆2，制动杆2与螺线管9接触，制动杆2上套设有能卡住锁扣6的制动块4，制动块4通过设置在制动块4一侧的紧固螺丝5将制动块4固定在制动杆2上，松动紧固螺丝5可调节制动块4在制动杆2上的位置，从而实现常开常闭的转换；螺线管9通电产生电磁力，在电磁力的作用下带动螺管芯轴运动，芯轴推动制动杆2以及固定在制动杆2上的制动块4运动，以使制动块4与锁扣6相抵或分离。制动块4与螺线管9之间的制动杆2上设置有调整压簧7，手动压缩调整压簧7，可以将锁有常闭状态调整到常开状态， 调整压簧释放能自动推动制动块运动到制动杆2限位位置，即实现了由常开到常闭的调节，制动块4在制动杆2上的另一侧设置有制动弹簧3，在断电时能依靠制动弹簧3的张力让制动杆2回复到通电前的状态。
上述螺线管9包括设置在螺线管9内部的芯轴91以及芯轴91外部绕线架上缠绕的漆包线(图中未示出)，螺线管9电连接控制线路板(图中未示出)，通过控制线路板控制螺线管的通电与断电，该控制线路板能通过刷卡或者密码或者指纹等现有技术来实现控制线路板的控制，螺线管9通电，产生电磁力带动芯轴91运动，芯轴91的端部接触制动杆2，以带动制动杆2的运动，芯轴91端部与制动杆2之间设置有端套8，端套8的端部面积大于芯轴91以及制动杆的端部面积，以便于芯轴91与制动杆2的连接。
本发明中还提供了一种使用上述阴极锁进行切换常闭与常开状态的方法，包括以下步骤：常开状态：松开紧固螺丝，调整制动块在制动杆上的位置，使制动块与锁扣分离；拧紧紧固螺丝，使制动块固定在制动杆上；关门时，螺线管通电，螺线管内的芯轴受到电磁力作用带动制动杆运动，制动杆带动制动块并将制动块运动到锁扣处，制动块抵住锁扣，门上锁；由常开状态切换至常闭状态时：松开紧固螺丝，制动块依靠调整压簧的张力，自动将制动块推动到制动杆上相应的位置，使制动块抵在锁扣上；拧紧紧固螺丝，使制动块固定在制动杆上，此时处于上锁状态；开门时，螺线管通电，螺线管内的芯轴受电磁力作用带动制动杆运动，制动杆带动制动块运动，制动块与锁扣分离，门开锁。常开状态调节到常闭状态时，拨动制动块向螺线管一侧直到滑动到固定位置，该固定位置为事先根据螺线管的磁力以及弹簧的弹力计算得出，选用不同的螺线管以及弹簧，该固定位置不同，同时压缩调整压簧，然后锁紧紧固螺丝。
同理，当常闭状态的阴极锁切换至常开状态时，松开紧固螺丝，调整制动块在制动杆上的位置，使制动块与锁扣分离；拧紧紧固螺丝，使制动块固定在制动杆上，此时处于开锁状态；关门时，螺线管通电，螺线管内的芯轴受到电磁力作用带动制动杆运动，制动杆带动制动杆上的制动块运动到锁扣处，制动块抵住锁扣，门上锁。常闭状态调节到常开状态时，制动块在制动杆上的位置通过手工调节制动块，使制动块滑动到脱离制动块的位置，然后拧紧紧固螺丝。
因此，本发明的磁力锁在正常工作中可设为两种状态中的任一种，即常开状态或常闭状态，当常开状态时，螺线管不通电，制动块让开锁扣，锁为开锁状态；螺线管通电时，螺线管芯轴撞击端套带动制动杆和制动块移位，压缩制动弹簧，制动块抵住锁扣，就可以上锁；断电后靠制动弹簧的回复力，让制动杆、制动块、端套复位，实现开锁；当常闭状态时，螺线管不通电，制动块抵住锁扣，锁为上锁状态；螺线管通电时，螺线管芯轴撞击端套带动制动杆和制动块移位，压缩制动弹簧，制动块让开锁扣，就可以开锁；断电后靠制动弹簧的回复力，让制动杆、制动块、端套复位，实现上锁。
可以理解，本发明是通过一些实施例进行描述的，本领域技术人员知悉的，在不脱离本发明的精神和范围的情况下，可以对这些特征和实施例进行各种改变或等效替换。另外，在本发明的教导下，可以对这些特征和实施例进行修改以适应具体的情况及材料而不会脱离本发明的精神和范围。因此，本发明不受此处所公开的具体实施例的限制，所有落入本申请的权利要求范围内的实施例都属于本发明所保护的范围内。

Claims (10)

  1. 一种阴极锁，包括安装在门或门框上的锁体(1)以及能与锁体(1)相锁合的锁舌，其特征在于，锁体(1)上设置有能与锁舌相扣合的锁扣(6)，锁体(1)上还安装有通电即能产生电磁力的螺线管(9)，螺线管(9)的端部连接有能卡住锁扣(6)的制动装置(10)，螺线管(9)通电产生电磁力，在电磁力的作用下带动制动装置(10)运动，以使制动装置(10)与锁扣(6)相抵或分离。
  2. 根据权利要求1所述的阴极锁，其特征在于，制动装置(10)包括活动设置在锁体(1)上的制动杆(2)，制动杆(2)与螺线管(9)连接，制动杆(2)上套设有能卡住锁扣(6)的制动块(4)，制动块(4)通过设置在制动块(4)一侧的紧固螺丝(5)将制动块(4)固定在制动杆(2)上，松动紧固螺丝(5)可调节制动块(4)在制动杆(2)上的位置；螺线管(9)通电产生电磁力，在电磁力的作用下带动制动杆(2)以及固定在制动杆(2)上的制动块(4)运动，以制动块(4)与锁扣(6)相抵或分离。
  3. 根据权利要求2所述的阴极锁，其特征在于，制动块(4)与螺线管(9)之间的制动杆(2)上设置有调整压簧(7)，以调整制动块(4)在制动杆(2)上的位置。
  4. 根据权利要求3所述的阴极锁，其特征在于，螺线管(9)包括设置在螺线管(9)内部的芯轴(91)以及围绕绕线架缠绕的导线，螺线管(9)电连接控制线路板，通过控制线路板控制螺线管的通电与断电，螺线管(9)通电，产生电磁力带动芯轴(91)运动。
  5. 根据权利要求4所述的阴极锁，其特征在于，芯轴(91)的端部连接制动杆(2)，以带动制动杆(2)运动。
  6. 根据权利要求5所述的阴极锁，其特征在于，芯轴(91)端部与制动杆(2)之间设置有端套(8)，端套(8)的表面积大于芯轴(91)以及制动杆的表面积，以便于芯轴(91)与制动杆的连接。
  7. 一种使上述权利要求1-6中任一种阴极锁切换常开状态与常闭状态的方法，其特征在于，包括以下步骤：常开状态：松开紧固螺丝，调整制动块在制动杆上的位置，使制动块与锁扣分离；拧紧紧固螺丝，使制动块固定在制动杆上，此时处于开锁状态；关门时，螺线管通电，螺线管内的芯轴受到电磁力作用带动制动杆运动，制动杆带动制动杆上的制动块运动到锁扣处，制动块抵住锁扣，门上锁；切换至常闭状态时：松开紧固螺丝，调整制动块在制动杆上的位置，使制动块抵在锁扣上；拧紧紧固螺丝，使制动块固定在制动杆上，此时处于上锁状态；开门时，螺线管通电，螺线管内的芯轴受到电磁力作用带动制动杆运动，制动杆带动制动块运动，制动块与锁扣分离，门开锁。
  8. 根据权利要求7所述的方法，其特征在于，常闭状态的阴极锁切换至常开状态时，松开紧固螺丝，调整制动块在制动杆上的位置，使制动块与锁扣分离；拧紧紧固螺丝，使制动块固定在制动杆上，此时处于开锁状态；关门时，螺线管通电，螺线管内的芯轴受到电磁力作用带动制动杆运动，制动杆带动制动杆上的制动块运动到锁扣处，制动块抵住锁扣，门上锁。
  9. 根据权利要求7所述的方法，其特征在于，常开状态调节到常闭状态时，拨动制动块向螺线管一侧直到滑动到固定位置，同时压缩调整压簧，然后锁紧紧固螺丝。
  10. 根据权利要求8所述的方法，其特征在于，常闭状态调节到常开状态时，制动块在制动杆上的位置通过制动弹簧的张力，使制动块自动滑动到脱离制动块的位置，然后拧紧紧固螺丝。
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