WO2014079207A1 - 一种节能磁力锁 - Google Patents

一种节能磁力锁 Download PDF

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Publication number
WO2014079207A1
WO2014079207A1 PCT/CN2013/075985 CN2013075985W WO2014079207A1 WO 2014079207 A1 WO2014079207 A1 WO 2014079207A1 CN 2013075985 W CN2013075985 W CN 2013075985W WO 2014079207 A1 WO2014079207 A1 WO 2014079207A1
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WO
WIPO (PCT)
Prior art keywords
energy
magnetic lock
screw
slot
sensor
Prior art date
Application number
PCT/CN2013/075985
Other languages
English (en)
French (fr)
Inventor
张宗志
Original Assignee
上海欧一安保器材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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 AU2013347682A priority Critical patent/AU2013347682B2/en
Priority to JP2015543253A priority patent/JP6285947B2/ja
Priority to US14/646,890 priority patent/US10422168B2/en
Priority to CA2892382A priority patent/CA2892382C/en
Priority to KR1020157014470A priority patent/KR101787852B1/ko
Priority to GB1508581.4A priority patent/GB2522811B/en
Publication of WO2014079207A1 publication Critical patent/WO2014079207A1/zh

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/56—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by magnetic or electromagnetic attraction or operated by electric or electromagnetic means
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
    • E05C19/166—Devices holding the wing by magnetic or electromagnetic attraction electromagnetic
    • 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
    • E05B2047/0048—Circuits, feeding, monitoring
    • E05B2047/0065—Saving energy
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks

Definitions

  • the invention relates to an electric control door lock, in particular to an energy-saving magnetic door lock.
  • the electronically controlled magnetic lock is applied to the escape door. It has anti-theft and escape functions. It has been used in the field of access control for more than 30 years, so it has an indelible position in security.
  • the existing electronically controlled magnetic lock normally has a power-on lock, and is unlocked when a fire, emergency, or access management is performed.
  • the technical problem to be solved by the present invention is to provide a magnetic lock that is instantaneously converted from a normal low current to a high voltage when the sensor senses that the external force is greater than or equal to a predetermined value. Energy-saving magnetic lock for current.
  • An energy-saving magnetic lock includes an electromagnet fixed relative to the door frame and a relay iron plate mounted on the door panel by screws.
  • the electromagnet has a slot that opens on its suction surface and extends toward the bottom surface thereof.
  • the slot is inserted with a touch lever and the end of the slot is equipped with a sensor.
  • the length of the touch lever is equal to the slot opening and the sensor facing the slot opening.
  • the distance between the surfaces, between the actuating lever and the slot has a member that moves the actuating lever axially a predetermined distance toward the slot opening when the pressing force received by the actuating lever head is less than a predetermined value.
  • the screw of the screw is fixed to the door panel through the counterbore on the iron plate and the nut of the screw abuts against the lever head when the electromagnet and the iron plate are sucked together, and the iron plate and the nut and the iron plate First and second elastic members are respectively disposed between the door and the door, and the electromagnet and the sensor are respectively connected to the circuit control board.
  • the member for axially moving the trigger lever to the slot opening by a predetermined distance at a predetermined value includes: a flange that is radially outwardly convex on the actuation lever, at least two holes having different apertures constituting the slot, and the sleeve A return spring that strikes the outer circumference of the rod and is caught between the flange of the actuation rod and the socket.
  • the slot includes three concentric cylindrical holes that are butted from the suction surface, and the apertures of the three-stage holes are sequentially increased.
  • the diameter of the first hole is larger than the diameter of the rod of the touch rod but smaller than the diameter of the flange
  • the diameter of the second hole is larger than the diameter of the flange of the touch rod
  • the third hole is fixed with no head. Screw, touch the end of the rod through the center hole of the headless screw.
  • the spring is caught between the trigger lever flange and the headless screw fixed in the slot.
  • the senor is a U-shaped structure, and the sensor's induction faces the center of the headless screw.
  • the tail end of the touch lever passes through the headless screw and is in the center of the sensor, and is in a free state.
  • the senor is a pressure sensor or an optocoupler sensor.
  • the position of the counterbore opening on the suction surface of the iron plate corresponds to the position of the slot opening on the suction surface of the electromagnet
  • the counterbore comprises a three-section butted concentric cylinder from the suction surface.
  • the hole diameter of the three-section hole is gradually reduced.
  • the first section of the hole receives the nut of the screw
  • the second section of the hole contains the first elastic member
  • the screw of the screw passes through the central hole of the first elastic member and enters the third section of the hole
  • the screw of the screw After passing through the third section of the hole, it passes through a central hole located on the second elastic member between the iron plate and the door panel and is fixed to the door panel.
  • the first elastic member is a butterfly elastic or a spring.
  • the second elastic member is a rubber crucible.
  • the indicator light provided on the lock body supporting and encapsulating the electromagnet is connected to the circuit control board.
  • the magnetic lock of the invention is often in a low current working state, and changes from the energy-saving state to the high-tension state before the external force is invaded, and simultaneously issues a short-range and remote alarm to stop the external force from invading, thereby saving energy and increasing the alarm function, strengthening the magnetic force.
  • the security of the lock is DRAWINGS
  • FIG. 1 is an exploded view showing the structure of an energy-saving magnetic lock according to an embodiment of the present invention
  • Figure 2 shows the overall appearance of the energy-saving magnetic lock of Figure 1 when the door is opened
  • Figure 3 is a cross-sectional view of the energy-saving magnetic lock of Figure 1 in a normal case where the door is closed and locked
  • Figure 4 is a cross-sectional view of the energy-saving magnetic lock of Figure 1 when the door is closed and locked by an external force
  • Figure 5 is a cross-sectional view of the energy saving magnetic lock of Figure 1 with the door open unlocked. detailed description
  • an energy-saving magnetic lock includes an electromagnet 1 fixed relative to a door frame and a relay iron plate 2 mounted on the door panel.
  • the electromagnet 1 has a slot 12 that opens on its suction surface and extends toward the bottom surface thereof.
  • the slot 12 is inserted with an actuating lever 11 and the end of the slot 12 is provided with a sensor 13 whose length is equal to the slot opening. a distance from the surface of the sensor 13 facing the slot opening, between the actuation lever 11 and the slot 12, the actuation lever 11 is axially moved toward the slot opening when the pressing force received by the actuation lever head is less than a predetermined value The components of the distance.
  • first and second elastic members 23 and 24 are provided for the screw 21 to be opposite to the secondary iron plate 2 Axial displacement.
  • the electromagnet 1 and the sensor 13 are connected to the circuit control board 15, respectively.
  • the member that moves the trigger lever 11 axially to the slot opening by a predetermined distance between the trigger lever 11 and the slot 12 when the pressing force received by the actuation lever head is less than a predetermined value comprises: being disposed on the actuation lever 11 in a radial direction The outer raised flange 111, at least two holes having different apertures constituting the slot 12, and a return spring 14 that is sleeved around the outer periphery of the actuating lever 11 and caught between the contact lever flange 111 and the slot 12. Touch
  • the function of the flange 1111 on the rod 11 is mainly to limit the distance by which the trigger rod 11 moves to prevent it from coming off the socket 12.
  • the extending axis of the slot 12 is perpendicular to the suction surface of the electromagnet 1.
  • the slot 12 includes three concentric cylindrical holes that are opposite from the suction surface.
  • the apertures of the three-stage cylindrical holes are sequentially increased, wherein the aperture of the first-stage holes is larger than the diameter of the rod of the touch rod 11 except for the flange 111 but smaller than the diameter of the flange 111, and the aperture of the second-stage hole is larger than the touch
  • the diameter of the rod flange 111 is fixed with a headless screw 16 in the third section of the hole, and the end of the actuation rod 11 passes through the center through hole of the headless screw 16, but does not engage with the headless screw 16.
  • the return spring 14 is sleeved around the outer periphery of the actuating lever 11 and is caught between the actuating lever flange 111 and the headless screw 16.
  • the sensor 13 can be a pressure sensor or an optocoupler sensor with the sensing surface facing the center of the headless screw 16.
  • the sensor 13 is preferably of a U-shaped configuration, so that the tail of the triggering rod 11 passes through the headless screw 16 and is at the sensor 13. Central, but not fixed, in a free state.
  • the circuit control board 15 connected to the sensor 13 is provided with a DC input port, a high and low current automatic switching module, a voltage output port, an alarm signal trigger input port, and an alarm signal trigger output port.
  • the warning signal connected to the sensor board 15 on the circuit board 15 triggers the input port.
  • the voltage input port of the electromagnet 1 is connected to the voltage output port on the circuit board 15 via the terminal 151.
  • the signal input port of the indicator light 17 is connected to the warning signal on the circuit board 15 to trigger the output port, which can play a visual alarm.
  • the sensor 13 is fixed on the circuit board 131
  • the circuit board 131 is fixed on the bottom surface of the electromagnet 1
  • the electromagnet 1 is fixed in the lock body 18
  • the control board 15 is also fixed on the lock body.
  • 18 is interposed between the electromagnet 1 and the terminal plate 183.
  • the indicator light 17 is disposed on the lock body 18 with the light emitting surface facing outward.
  • Two terminal plates 183, a cover 184 and a lock body 18 are assembled to support and enclose the electromagnet 1.
  • the side plate 182 is fixed on the upper edge 181 of the door frame.
  • the two ends of the side plate 182 are provided with threaded teeth 185 corresponding to the through holes of the two terminal plates 183, and the fasteners 186 are passed through the threaded ends of the through holes of the terminal plate 183.
  • the lock body 18 is fixed to the side panel 182.
  • the iron plate 2 Corresponding to the position of the opening of the slot 12 on the suction surface of the electromagnet 1, the iron plate 2 has a counterbore 22 opening on its suction surface, and the extension axis of the counterbore 22 is perpendicular to the engagement of the relay plate 2.
  • the surface includes three opposite concentric cylindrical holes from the suction surface. As shown in FIGS. 3, 4 and 5, the diameter of the three-section hole is gradually reduced, and the first-stage hole receives the nut 211 of the screw 21. The second length of the hole receives the first elastic member 23, and the screw of the screw 21 passes through the central hole of the first elastic member 23 and enters the third hole.
  • the screw of the nail 21 passes through the third hole and passes through the center hole on the second elastic member 24 between the iron plate 2 and the door panel, and is fixed to the door panel.
  • the top surface of the nut 211 of the screw 21 is flush with the suction surface of the secondary iron plate 2.
  • the first elastic member 23 between the screw 21 and the secondary iron plate 2 is a butterfly elastic piece or a spring
  • the second elastic member 24 between the iron plate 2 and the door plate is a rubber crucible.
  • the return spring 14 is deformed, and the touch lever 11 is in contact with the sensor 13, the circuit
  • the control board 15 sends a signal to the indicator light 17 indicating that the lock status is locked and normal.
  • the screw 21 moves axially with respect to the secondary iron plate 2 with the door, and is deformed on the magnetic lock 1 side by the return spring 14 when the door is closed,
  • the actuation lever 11 applies tension so that the actuation lever 11 moves with the screw 21, and then the tail of the actuation lever 11 is disengaged from the sensor 13, as shown in Fig. 4, causing a change in the internal electric field of the sensor 13, and thus a circuit control panel connected to the sensor 13.
  • 15 issued an instruction the entire circuit current will be raised from the normal 0.1A to the high current 0.5A during the warning, to achieve the effect of protecting the access control, while the circuit control board 15 issued an early warning command, the indicator light 17 starts to report
  • the present invention can also be provided with an audible alarm and/or other type of visual pre-alarm on the energy-saving magnetic lock.
  • the present invention activates the sensor by the displacement of the touch lever when the door lock is in the locked state, and the displacement of the touch lever is caused by the external force pushing or pulling the door.
  • the circuit controller compares the pressure value detected by the sensor to the sensor with the set rated value. When the pressure value of the touch lever to the sensor is less than or equal to the rated pressure value, the magnetic door lock is operated by the energy saving (small current) mode. Instantly switch to high tension (high current) mode and trigger early warning alarm; When the pressure value of the touch lever to the sensor is greater than the rated pressure value, the magnetic door lock returns to normal low current.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

一种节能磁力锁，包括相对门框固定的电磁铁（1）和通过螺钉（21）安装在门板上的继铁板（2）。电磁铁具有在其吸合面上开口并向其底面延伸的插槽（12），插槽中插有触动杆（11）并且末端装有传感器（13），触动杆（11）的长度等于插槽开口与传感器（13）间的距离，触动杆和插槽间有在触动杆受到的按压力小于预定值时使触动杆向插槽开口移动预定距离的构件。螺钉的螺帽（211）在电磁铁和继铁板吸合时顶靠在触动杆杆头，继铁板和螺帽（211）间以及继铁板和门板间分别设有第一和第二弹性件（23、24）。电磁铁和传感器分别与电路控制板（15）连接。这种磁力锁既节能又具有报警功能，加强了磁力锁的安全性。

Description

一种节能磁力锁
技术领域
本发明涉及一种电控门锁， 尤其涉及一种节能磁力门锁。
背景技术
电控磁力锁应用在逃生门上， 具有防盗及逃生功能， 在门禁领域应用已 有 30 几年， 因此在安全防范方面具有不可磨灭的地位。 现有的电控磁力锁 常态为通电上锁， 火灾、 紧急状况或出入管理时才断电解锁， 磁力锁的拉力 大小 F= K*AT, 这里 A为电流， T为圏数， 欲提高拉力只有增加电流， 但是 电流越大通电时间越长则耗电量越大， 由于电控磁力锁常态为通电上锁， 所 以通电时间很长， 如果电流大的话耗电量将会很大， 因此不满足近年来世界 各国极力提倡的节能减排的要求。 发明内容
针对现有的磁力锁常处于高电流工作状态的缺点与不足， 本发明要解决 的技术问题是提供一种通过传感器感知人为外力大于或等于预定值时使磁 力锁由常态低电流瞬间转换为高电流的节能磁力锁。
为解决上述技术问题， 本发明采用如下技术方案：
一种节能磁力锁， 包括相对门框固定的电磁铁和通过螺釘安装在门板上 的继铁板。 电磁铁具有在其吸合面上开口并向其底面延伸的插槽， 插槽中插 有触动杆并且插槽末端装有传感器， 触动杆的长度等于插槽开口与传感器面 对插槽开口的表面之间的距离， 触动杆和插槽之间具有在触动杆杆头受到的 按压力小于预定值时使触动杆向插槽开口轴向移动预定距离的构件。 螺釘的 螺杆穿过继铁板上的沉孔固定在门板上并且螺釘的螺帽在电磁铁和继铁板 吸合时顶靠在触动杆杆头， 继铁板和螺帽之间以及继铁板和门板之间分别设 有第一和第二弹性件， 电磁铁和传感器分别与电路控制板连接。
对于上述节能磁力锁， 触动杆和插槽之间在触动杆杆头受到的按压力小 于预定值时使触动杆向插槽开口轴向移动预定距离的构件包括： 设在触动杆 上径向向外凸起的凸缘、 构成插槽的至少两段孔径不同的孔、 以及套置在触 动杆外周并卡在触动杆凸缘和插槽之间的复位弹簧。
对于上述节能磁力锁， 插槽包括从吸合面起三段对接的同心圓柱形孔， 三段孔的孔径依次增大。
对于上述节能磁力锁， 第一段孔的孔径大于触动杆的杆直径但小于凸缘 处的直径， 第二段孔的孔径大于触动杆凸缘处的直径， 第三段孔内固定有无 头螺丝， 触动杆杆尾穿过无头螺丝中心通孔。
对于上述节能磁力锁， 弹簧卡在触动杆凸缘和固定在插槽内的无头螺丝 之间。
对于上述节能磁力锁， 传感器是 U型结构， 传感器的感应面对着无头螺 丝的中心。
对于上述节能磁力锁， 触动杆的杆尾穿过无头螺丝后处于传感器的中 央， 处于自由状态。
对于上述节能磁力锁， 传感器是压力传感器或光耦传感器。
对于上述节能磁力锁， 沉孔在继铁板的吸合面上开口的位置对应于电磁 铁的吸合面上插槽开口的位置， 沉孔包括从吸合面起的三段对接的同心圓柱 形孔， 三段孔的孔径逐步减小。
对于上述节能磁力锁， 第一段孔内容纳螺釘的螺帽， 第二段孔内容纳第 一弹性件， 螺釘的螺杆穿过第一弹性件的中心孔后进入第三段孔， 螺釘的螺 杆从第三段孔穿出后穿过位于继铁板和门板之间的第二弹性件上的中心孔 后固定到门板上。
对于上述节能磁力锁， 第一弹性件是蝶形弹片或弹簧。
对于上述节能磁力锁， 第二弹性件是橡胶圏。
对于上述节能磁力锁， 设置在支撑并封装电磁铁的锁体上的指示灯与电 路控制板连接。
与现有技术相比， 本发明技术方案主要的优点如下： 本发明的磁力锁常处于低电流工作状态， 在外力入侵前由节能状态转变 为高拉力状态， 同时发出近程及远程警报喝止外力入侵， 既节省了电能又增 加了报警功能， 加强了磁力锁的安全性。 附图说明
图 1是本发明一个实施例所述的节能磁力锁的结构分解图；
图 2示出图 1中的节能磁力锁在门开启时的整体外观；
图 3是图 1中的节能磁力锁在门关闭上锁正常情况下的横截面视图； 图 4是图 1中的节能磁力锁在门关闭上锁时受到外力推拉情况下的横截 面视图；
图 5是图 1中的节能磁力锁在门开启解锁情况下的横截面视图。 具体实施方式
如图 1所示， 本发明一个实施例所述的节能磁力锁包括相对于门框固定 的电磁铁 1和安装在门板上的继铁板 2。 电磁铁 1具有在其吸合面上开口并 向其底面延伸的插槽 12, 插槽 12中插有触动杆 11并且插槽 12的末端装有 传感器 13 ,触动杆 11的长度等于插槽开口与传感器 13面对插槽开口的表面 之间的距离， 触动杆 11和插槽 12之间具有在触动杆杆头受到的按压力小于 预定值时使触动杆 11向插槽开口轴向移动预定距离的构件。 继铁板 2通过 螺釘 21安装在门板上， 螺釘 21的螺杆穿过继铁板 2上的沉孔 22固定在门 板上并且螺釘 21的螺帽 211在电磁铁 1和继铁板 2吸合时顶靠在触动杆 11 杆头， 继铁板 2和螺帽 211之间以及继铁板 2和门板之间分别设有第一和第 二弹性件 23和 24使螺釘 21得以相对于继铁板 2轴向移位。 电磁铁 1和传 感器 13分别与电路控制板 15连接。
其中， 触动杆 11和插槽 12之间在触动杆杆头受到的按压力小于预定值 时使触动杆 11向插槽开口轴向移动预定距离的构件包括： 设在触动杆 11上 径向向外凸起的凸缘 111、构成插槽 12的至少两段孔径不同的孔、 以及套置 在触动杆 11外周并卡在触动杆凸缘 111和插槽 12之间的复位弹簧 14。触动 杆 11上的凸缘 1111的作用主要是限制触动杆 11移动的距离以防其脱离插 槽 12。 插槽 12的延伸轴垂直于电磁铁 1的吸合面， 在如图 3、 4和 5所示的 实施例中， 插槽 12 包括从吸合面起三段相对接的同心圓柱形孔， 这三段圓 柱形孔的孔径依次增大， 其中， 第一段孔的孔径大于触动杆 11除了凸缘 111 之外的杆直径但小于凸缘 111处的直径，第二段孔的孔径大于触动杆凸缘 111 处的直径， 第三段孔内固定有无头螺丝 16, 触动杆 11杆尾穿过无头螺丝 16 中心通孔， 但不和无头螺丝 16咬合。 复位弹簧 14套置在触动杆 11外周并 卡在触动杆凸缘 111和无头螺丝 16之间。 传感器 13可以为压力传感器或光 耦传感器， 感应面正对着无头螺丝 16的中心， 传感器 13优选为近似 U型结 构， 所以触动杆 11的杆尾穿过无头螺丝 16后处于传感器 13的中央， 但并 没有固定， 处于自由状态。
与传感器 13连接的电路控制板 15上设有直流电输入埠、 高低电流自动 切换模块、 电压输出端口、 预警信号触发输入端口、 以及预警信号触发输出 端口。 传感器 13连接到电路控制板 15上的预警信号触发输入端口。 电磁铁 1的电压输入端口通过接线头 151连接到电路控制板 15上的电压输出端口。 指示灯 17 的信号输入端口连接到电路控制板 15 上的预警信号触发输出端 口， 可以起到从视觉上报警的作用。
优选地， 如图 1和图 2所示， 传感器 13固定在电路板 131上， 电路板 131固定在电磁铁 1底面上， 电磁铁 1固定在锁体 18内， 控制板 15也固定 在锁体 18内介于电磁铁 1与端子板 183之间。 指示灯 17设在锁体 18上发 光面朝外。 两个端子板 183、盖板 184和锁体 18组装起来支撑并封装电磁铁 1。 先将边板 182固定在门框上缘 181上， 边板 182两端设有螺牙 185与两 个端子板 183通孔相对应， 用紧固件 186穿过端子板 183通孔两端的螺牙将 锁体 18固定在边板 182上。
对应于电磁铁 1的吸合面上插槽 12开口的位置， 继铁板 2具有一个在 其吸合面上开口的沉孔 22, 沉孔 22的延伸轴垂直于继铁板 2的吸合面， 包 括从吸合面起的三段相对接的同心圓柱形孔， 如图 3、 4和 5所示， 三段孔 的直径逐步减小， 第一段孔内容纳螺釘 21的螺帽 211 , 第二段孔内容纳第一 弹性件 23 , 螺釘 21的螺杆穿过第一弹性件 23的中心孔后进入第三段孔， 螺 釘 21的螺杆从第三段孔穿出后穿过位于继铁板 2和门板之间的第二弹性件 24上的中心孔后固定到门板上。 螺釘 21的螺帽 211顶面与继铁板 2的吸合 面平齐。 优选地， 螺釘 21和继铁板 2之间的第一弹性件 23为蝶形弹片或弹 簧， 继铁板 2和门板之间的第二弹性件 24为橡胶圏。
下面， 描述本发明的节能磁力锁是如何实现节能以及预警功能的。
当门开启时， 触动杆 11在复位弹簧 14的作用下杆头从插槽 12在吸合 面上的开口凸出， 杆尾与插槽 12底部的传感器 13间隔开， 如图 2和图 5所 示。 当门关闭时， 由于电磁铁 1通电产生的磁力， 使电磁铁 1和继铁板 2紧 紧吸合， 这时电磁铁 1通入的电流为 0.1A, 电磁铁 1吸合面上凸出的触动杆 11杆头被继铁板 2上的螺釘 21压缩成与电磁铁 1的吸合面等高， 如图 3所 示， 复位弹簧 14发生形变， 触动杆 11杆尾接触传感器 13, 电路控制板 15 发送信号给指示灯 17指示锁状态为上锁且正常。 在门关闭的状态下非法开 门时， 即有外力推拉门， 由于电磁铁 1和继铁板 2之间的吸力， 推拉门的作 用会先使第一弹性件 23和第二弹性件 24发生形变（第一弹性件 23被压缩， 第二弹性件 24膨胀） ， 螺釘 21随门一起相对于继铁板 2轴向移动， 在磁力 锁 1一侧由于复位弹簧 14在门闭合时发生形变， 给触动杆 11施加张力使触 动杆 11随着螺釘 21—起移动， 于是触动杆 11的杆尾脱离传感器 13, 如图 4所示， 造成传感器 13内部电场变化， 于是和传感器 13相连的电路控制板 15发出指令， 整个电路电流将由常态的 0.1A提升到警戒时的高电流 0.5A, 达到保护门禁的效果， 同时电路控制板 15发出预警指令， 指示灯 17启动报
本发明到节能磁力锁上还可以设置声音预警器和 /或其他类型的视觉预 警器。
综上所述， 本发明是运用在门锁处于上锁状态下触动杆的位移来触发传 感器， 触动杆的位移是因外力对门的推动或拉动而导致。 电路控制器将传感 器检测到的触动杆对传感器的压力值与设定的额定值作比较， 当触动杆对传 感器的压力值小于或等于额定压力值时， 磁力门锁由节能（小电流）模式瞬 间转为高拉力 （大电流）模式， 同时触发预警警报； 当触动杆对传感器的压 力值大于额定压力值时， 磁力门锁即恢复常态低电流。

Claims

权 利 要 求 书
1、 一种节能磁力锁， 包括相对门框固定的电磁铁（1)和通过螺釘（21) 安装在门板上的继铁板（2) , 其特征在于， 电磁铁 (1)具有在其吸合面上 开口并向其底面延伸的插槽（12) , 插槽（12) 中插有触动杆（11)并且插 槽（12)末端装有传感器（13) , 触动杆（11) 的长度等于插槽开口与传感 器（13) 面对插槽开口的表面之间的距离， 触动杆（11)和插槽（12)之间 具有在触动杆杆头受到的按压力小于预定值时使触动杆（11)向插槽开口轴 向移动预定距离的构件， 螺釘（21) 的螺杆穿过继铁板（2)上的沉孔（22) 固定在门板上并且螺釘（21) 的螺帽 （211)在电磁铁（1) 和继铁板（2) 吸合时顶靠在触动杆杆头， 继铁板（2)和螺帽（211)之间以及继铁板（2) 和门板之间分别设有第一和第二弹性件（23和 24) , 电磁铁 (1)和传感器
( 13 )分别与电路控制板（ 15 )连接。
2、 如权利要求 1 所述的节能磁力锁， 其特征在于， 触动杆（11)和插 槽（ 12)之间在触动杆杆头受到的按压力小于预定值时使触动杆（ 11 )向插 槽开口轴向移动预定距离的构件包括： 设在触动杆（11)上径向向外凸起的 凸缘（111) 、 构成插槽 （12) 的至少两段孔径不同的孔、 以及套置在触动 杆（ 11 )外周并卡在触动杆凸缘（ 111 )和插槽（ 12)之间的复位弹簧（ 14)。
3、 如权利要求 2所述的节能磁力锁， 其特征在于， 插槽（12) 包括从 吸合面起三段对接的同心圓柱形孔， 三段孔的孔径依次增大。
4、 如权利要求 3所述的节能磁力锁， 其特征在于， 第一段孔的孔径大 于触动杆（11) 的杆直径但小于凸缘（111)处的直径， 第二段孔的孔径大 于触动杆凸缘（111) 处的直径， 第三段孔内固定有无头螺丝 （16) , 触动 杆（11)杆尾穿过无头螺丝 （16) 中心通孔。
5、 如权利要求 4所述的节能磁力锁， 其特征在于， 弹簧（14)卡在触 动杆凸缘（111)和固定在插槽（12) 内的无头螺丝 （16)之间。
6、 如权利要求 4所述的节能磁力锁， 其特征在于， 传感器（13)是 U 型结构， 传感器（13) 的感应面对着无头螺丝 （16) 的中心。
7、 如权利要求 4或 5所述的节能磁力锁， 其特征在于， 触动杆（ 11 ) 的杆尾穿过无头螺丝 （16)后处于传感器（13) 的中央， 处于自由状态。
8、 如权利要求 1所述的节能磁力锁， 其特征在于， 传感器（13)是压 力传感器或光耦传感器。
9、 如权利要求 1所述的节能磁力锁， 其特征在于， 沉孔 （22)在继铁 板（2) 的吸合面上开口的位置对应于电磁铁 (1) 的吸合面上插槽（12)开 口的位置， 沉孔（22) 包括从吸合面起的三段对接的同心圓柱形孔， 三段孔 的孔径逐步减小。
10、 如权利要求 9所述的节能磁力锁， 其特征在于， 第一段孔内容纳螺 釘（21) 的螺帽 （211) , 第二段孔内容纳第一弹性件， 螺釘（21) 的螺杆 穿过第一弹性件（23) 的中心孔后进入第三段孔， 螺釘（21) 的螺杆从第三 段孔穿出后穿过位于继铁板（2)和门板之间的第二弹性件 （24)上的中心 孔后固定到门板上。
11、 如权利要求 1所述的节能磁力锁， 其特征在于， 第一弹性件（23) 是蝶形弹片或弹簧。
12、 如权利要求 1所述的节能磁力锁， 其特征在于， 第二弹性件（24) 是橡胶圏。
13、 如权利要求 1 所述的节能磁力锁， 其特征在于， 设置在支撑并封 装电磁铁（ 1 ) 的锁体（ 18 )上的指示灯（ 17 )与电路控制板（ 15 )连接。
PCT/CN2013/075985 2012-11-23 2013-05-21 一种节能磁力锁 WO2014079207A1 (zh)

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