WO2022110807A1 - 磁吸解锁固定装置和显示屏 - Google Patents

磁吸解锁固定装置和显示屏 Download PDF

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Publication number
WO2022110807A1
WO2022110807A1 PCT/CN2021/104020 CN2021104020W WO2022110807A1 WO 2022110807 A1 WO2022110807 A1 WO 2022110807A1 CN 2021104020 W CN2021104020 W CN 2021104020W WO 2022110807 A1 WO2022110807 A1 WO 2022110807A1
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WO
WIPO (PCT)
Prior art keywords
linkage
fixing device
magnetic
buckle
casing
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PCT/CN2021/104020
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English (en)
French (fr)
Inventor
陈发龙
王伟棠
杨贶
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深圳市洲明科技股份有限公司
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Application filed by 深圳市洲明科技股份有限公司 filed Critical 深圳市洲明科技股份有限公司
Publication of WO2022110807A1 publication Critical patent/WO2022110807A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1438—Back panels or connecting means therefor; Terminals; Coding means to avoid wrong insertion

Definitions

  • the present application relates to the technical field of display screens, and more particularly, to a magnetic unlocking fixing device and a display screen.
  • the design requirements for fixing methods in the field of LED display are becoming more and more strict.
  • the simplicity and practicality of the fixing method are becoming more and more important in the LED display industry.
  • a magnetic fixing method is generally adopted between the display module and the box of the LED display.
  • the magnetic fixing method has a low level of wind resistance and earthquake resistance, and has poor safety and reliability.
  • an existing method is to add a knob lock between the display module and the box to improve the wind resistance and earthquake resistance of the magnetic fixing method. That is, a knob lock is arranged on the back of the display module to further fix the display module on the box.
  • the display module is provided with adjustment through holes penetrating through opposite sides of the display module. The knob lock is adjusted by passing an adjustment tool through the adjustment through hole, so as to switch the knob lock between a locked state and an unlocked state.
  • the inventor found that the adjustment of the existing knob lock requires opening adjustment through holes on the display module.
  • the distance between adjacent lamp beads and lamp beads on the display module on the LED display screen is getting smaller and smaller, and the gap between the lamp beads and the lamp beads is getting smaller and smaller. It is not enough to open an adjustment through hole, so that the user cannot use an adjustment tool to pass through the display module to rotate the knob lock, and it is impossible to perform front maintenance on the display module.
  • the present application provides a magnetic attraction unlocking fixing device and a display screen.
  • the present application provides a magnetic attraction unlocking and fixing device, comprising:
  • the side wall of the casing is provided with an escape opening
  • the linkage member is accommodated in the casing, and the linkage member can move relative to the casing;
  • a clasp a part of the clasp is accommodated in the casing, the clasp is rotatably connected to the casing, and the clasp is arranged in linkage with the linkage;
  • the buckle includes a linkage portion and a limit portion extending from the linkage portion, and the rotation center of the buckle is located between the linkage portion and the limit portion, and the linkage The part is located in the outer casing and fits with the outer side of the linkage.
  • the linkage portion is provided with a linkage slope for assisting in realizing linkage with the linkage member.
  • the linkage member is provided with a linkage slope for assisting the linkage with the linkage portion.
  • the magnetic unlocking and fixing device further includes a limiting member, the casing is provided with a holding groove, one end of the limiting member is connected to the linkage member, and the other end of the limiting member is connected to the linkage member. One end can be snapped into or out of the snap groove with the movement of the linkage.
  • the limiting member includes a first guide portion and a second guide portion extending from one end of the first guide portion, and the other end of the first guide portion is connected to the On the linkage member, the outer diameter of the first guide portion is larger than the outer diameter of the second guide portion, and a limit step is formed between the first guide portion and the second guide portion, so
  • the outer casing includes a cylindrical portion and an end portion located at one end of the cylindrical portion, the escape opening is opened on the cylindrical portion, and the end portion is provided with an escape groove and the holding groove that communicate with each other.
  • the width of the escape groove is greater than the outer diameter of the first guide portion, and the width of the holding groove is greater than the outer diameter of the second guide portion and smaller than the outer diameter of the first guide portion;
  • the first guide portion In the initial state, the first guide portion is located in the avoidance groove; when the linkage is attracted by the magnetic tool to move and rotate away from the end portion, the first guide portion is completely accommodated Inside the cylindrical portion, the limiting step is in contact with the inner side of the end portion, and the second guide portion is located in the holding groove, so that the limiting portion can be stably retracted in the end portion. Avoid in the mouth.
  • the limiting member has a head extending from the second guide portion, and the outer diameter of the head is larger than the width of the escape groove.
  • a blocking portion extends from the limiting portion in a direction away from the linkage portion, the blocking portion is accommodated in the barrel portion, and in an initial state, the blocking portion and the barrel The inner wall of the part abuts.
  • a limit step is provided on the link member, and when the link member is in an initial state, the outer side of the limit step is in contact with one side of the blocking portion, so that the card The buckle cannot be rotated and retracted; when the linkage is moved by the magnetic attraction tool, the limiting step and the blocking portion are staggered so that the buckle can be rotated and retracted.
  • the magnetic unlocking and fixing device further includes a linkage elastic member, and the linkage elastic member is located between the linkage member and the end portion.
  • the buckle is rotatably connected to the escape opening through a rotating shaft, and a torsion spring is sleeved on the rotating shaft.
  • the torsion spring produce elastic deformation.
  • the magnetic unlocking and fixing device further includes a flange, and the flange is fixedly arranged on the outer peripheral surface of the housing and is located below the escape opening.
  • the present application provides a display screen, comprising a fixed component, a display module and the aforementioned magnetic unlocking and fixing device, the magnetic unlocking fixing device is installed and fixed on the display module close to the fixing component
  • the back of the box body is provided with a mounting hole, the shell passes through the mounting hole, and when the other part of the buckle is exposed outside the shell through the escape opening, it abuts against the fixed part.
  • the display module and the fixing component are fixed on the surface.
  • the fixing component is a box, and when the other part of the snap is exposed outside the casing through the escape opening, it abuts against the inner wall of the box to realize the display mode. Set and fixation of the fixation member.
  • the magnetic suction unlocking fixing device in the present application has a simple and simple structure and strong adaptability.
  • the magnetic force of the magnetic suction tool realizes the unlocking, which can realize the front maintenance very well, and is easy to disassemble and assemble, saves time and labor, and can very well meet various requirements of the fixing method.
  • Fig. 1 is the enlarged structural schematic diagram of the magnetic attraction unlocking fixing device in the first embodiment
  • FIG. 2 is an enlarged schematic view of the partially cutaway structure when the buckle of the magnetic unlocking and fixing device in the first embodiment is in an initial state;
  • FIG. 3 is an enlarged schematic view of the partially cutaway structure when the buckle of the magnetic unlocking and fixing device in the first embodiment is retracted;
  • FIG. 4 is an enlarged schematic view of the partially cutaway structure when the buckle of the magnetic unlocking and fixing device in the second embodiment is in an initial state;
  • FIG. 5 is a schematic diagram of a partial structure of the display screen in the third embodiment.
  • this embodiment provides a magnetic unlocking and fixing device.
  • the magnetic unlocking and fixing device includes a casing 1 , a linkage 2 and a buckle 3 .
  • the side wall of the casing 1 is provided with an escape opening 111 .
  • the linkage member 2 is accommodated in the casing 1 , and the linkage member 2 can move relative to the casing 1 .
  • a part of the buckle 3 is accommodated in the casing 1 .
  • the buckle 3 is rotatably connected to the housing 1 . And the buckle 3 is linked with the linkage member 2 . In the initial state, the other part of the buckle 3 is exposed outside the casing 1 through the escape opening, so as to realize the limit fixation.
  • the magnetic attraction unlocking fixing device in this embodiment has a simple and simple structure and strong adaptability.
  • the buckle 3 includes a linkage portion 31 and a limiting portion 32 extending from the linkage portion 31 .
  • the rotation center of the buckle 3 is located between the linkage portion 31 and the limiting portion 32 .
  • the linkage portion 31 is located in the casing 1 and is in contact with the outer side of the linkage member 2 .
  • the linkage portion 31 is provided with a linkage slope 311 .
  • the linkage inclined surface 311 is used to assist in facilitating the linkage between the linkage portion 31 and the linkage member 2 .
  • the linkage member 2 is provided with a linkage slope 21 .
  • the linkage slope 21 is used to assist in facilitating the linkage between the linkage member 2 and the linkage portion 31 .
  • the magnetic unlocking and fixing device further includes a limiting member 4 .
  • the casing 1 may be provided with a holding groove.
  • One end of the limiting member 4 is connected to the linkage member 2 , and the other end of the limiting member 4 can be clipped into or out of the clip slot along with the movement of the linkage member 2 .
  • the limiting member 4 may include a first guide portion 41 and a second guide portion 42 extending from one end of the first guide portion 41 .
  • the other end of the first guide portion 41 is connected to the linkage member 2 .
  • the outer diameter of the first guide portion 41 is larger than the outer diameter of the second guide portion 42 .
  • a limiting step 43 is formed between the first guide portion 41 and the second guide portion 42 .
  • the housing 1 includes a cylindrical portion 11 and an end portion 12 located at one end of the cylindrical portion 11 .
  • the escape port 111 is opened on the cylindrical portion 11 .
  • the end portion 12 is provided with an escape groove 121 and a holding groove 122 that communicate with each other.
  • the width of the escape groove 121 is greater than or equal to the outer diameter of the first guide portion 41 .
  • the width of the holding groove 122 is greater than or equal to the outer diameter of the second guide portion 42 and smaller than the outer diameter of the first guide portion 41 .
  • the first guide portion 41 is located in the escape groove 121 .
  • the magnetic unlocking and fixing device further includes a linkage elastic member 5 .
  • the linkage elastic member 5 is located between the linkage member 2 and the end portion 12 .
  • the linkage elastic member 5 When the linkage member 2 is moved by the magnetic attraction tool, the linkage elastic member 5 is elastically deformed.
  • the linkage elastic member 5 is a compression spring.
  • a magnetic attraction member 6 is provided at one end of the linkage member 2 away from the end portion 12 of the housing 1 .
  • the magnetic attraction member 6 can be a magnet or an iron block, so as to generate magnetic attraction with the magnetic attraction tool. Because the magnetic attraction member 6 is installed, the material of the linkage member 2 can be a non-magnetic material, such as aluminum or rubber.
  • a blocking portion 33 extends from the limiting portion 32 in a direction away from the linkage portion 31 .
  • the blocking portion 33 is accommodated in the cylindrical portion 11 .
  • the blocking portion 33 In the initial state, the blocking portion 33 is in contact with the inner wall of the cylindrical portion 11 .
  • the linkage member 2 is provided with a limit step 22 .
  • the linkage member 2 When the linkage member 2 is in the initial state, the outer side of the limiting step 22 is in contact with one side of the blocking portion 33 , so that the buckle 3 cannot be rotated and retracted.
  • the limiting step 22 and the blocking portion 33 are staggered so that the buckle 3 can be rotated and retracted.
  • the buckle 3 is rotatably connected to the escape port 111 through the rotating shaft 7 .
  • a torsion spring 8 is sleeved on the rotating shaft 7 .
  • the torsion spring 8 is elastically deformed.
  • the two snaps 3 are symmetrically arranged on the casing 1 .
  • the linkage portion 31 is located at one end of the buckle 3 that is close to the end portion 12 of the housing 1 .
  • the limiting portion 32 is located at one end of the buckle 3 away from the end portion 12 of the housing 1 .
  • the magnetic attraction unlocking and fixing device further includes a flange 6 .
  • the flange 6 is fixedly provided on the outer peripheral surface of the cylindrical portion 11 .
  • the flange 6 may be located below the escape opening 111 .
  • the flange 6 can cooperate with the buckle 3 to realize the fixing of at least two pieces to be fixed. For example, when the limiting portion 32 is exposed through the escape opening 111 , the flange is installed on one to-be-fixed piece, and the limiting portion 32 abuts against another to-be-fixed piece (eg, its inner wall) to achieve fixation and positioning.
  • the flange 6 may be in the shape of a racetrack, but is not limited thereto.
  • the difference between this embodiment and the first embodiment is that the limiting portion 320 is located at one end of the buckle 300 close to the end portion 120 of the housing 100 , and the linkage portion 310 is located at the end of the buckle 300 .
  • the limiting portion 320 is hook-shaped. When the limiting portion 320 is exposed, the limiting portion 320 hooks another to-be-fixed piece (eg, its inner wall) to achieve limiting and fixing.
  • This embodiment provides a display screen, as shown in FIG. 5 .
  • the display screen includes a fixing component 500 , a display module 600 and the magnetic attraction unlocking fixing device in the first embodiment.
  • the magnetic unlocking fixing device is installed on the back of the display module 600 close to the fixing device 500 .
  • the flange 6 of the magnetic unlocking fixing device can be installed and fixed in the back of the display module 600 close to the fixing part 500 .
  • the fixing device 500 is provided with a mounting hole 510 .
  • the housing 1 can pass through the mounting hole 510 .
  • the fixing part 500 may be a box.
  • the fixing member 500 is a box body
  • the limiting portion 32 of the buckle 3 can abut against the inner wall of the box body when exposed through the escape opening 111 .
  • the magnetic unlocking and fixing device may also be the magnetic unlocking and fixing device in the second embodiment.
  • the magnetic attraction unlocking and fixing device can also be applied between any two to-be-fixed parts that need to be fixed together.
  • the display screen in this embodiment may be an LED display screen, an LCD display screen, an OLED display screen, a QLED display screen, etc. that need to display output terminals. That is, the magnetic attraction unlocking and fixing device in the first embodiment and the magnetic attraction unlocking and fixing device in the second embodiment in the embodiments of the present application can be adapted to different types of splicing type display output terminals.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Casings For Electric Apparatus (AREA)
  • Telephone Set Structure (AREA)

Abstract

一种磁吸解锁固定装置和显示屏。磁吸解锁固定装置包括外壳（1）、联动件（2）和卡扣（3）。外壳（1）的侧壁开设有避让口（111）。联动件（2）收容于外壳（1）内，且联动件（2）可相对外壳（1）移动。卡扣（3）的一部分收容于外壳（1）内，卡扣（3）转动连接于外壳（1）上，且卡扣（3）与联动件（2）联动设置。初始状态时，卡扣（3）的另一部分经由避让口（111）显露在外壳（1）外；联动件（2）被配置为被磁吸工具所磁吸时，联动件（2）靠近磁吸工具移动而带动卡扣（3）转动，使得卡扣（3）收起在避让口（111）内。

Description

磁吸解锁固定装置和显示屏
相关申请的交叉引用
本申请要求于2020年11月30日提交中国专利局、申请号为202011374162.3的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示屏技术领域，更具体地说，涉及磁吸解锁固定装置和显示屏。
背景技术
随着LED显示屏技术的不断发展，对于LED显示屏领域中涉及固定方式的设计要求愈发严格。固定方式的简易性和实用性在LED显示屏行业中愈发重要。现阶段，为了保证LED显示屏维护的便捷性，一般LED显示屏的显示模组和箱体之间采用磁吸固定方式。然而，磁吸固定方式抗风、抗震等级低，安全可靠性差。
为了解决磁吸固定方式抗风、抗震等级低的问题，现有的一种方式为在显示模组和箱体之间再增加一个旋钮锁来提高磁吸固定方式的抗风、抗震等级。即，在显示模组的背面设置一个旋钮锁来将显示模组进一步固定在箱体上。显示模组上开设有贯穿显示模组的相对两侧的调节通孔。通过一调节工具穿经该调节通孔而对旋钮锁进行调节，以便将旋钮锁在锁定状态和解锁状态之间进行切换。
发明人在实施上述旋钮锁方案的过程中发现，现有的旋钮锁的调节，需要在显示模组上开设调节通孔。然而，随着LED显示屏高分辨率的发展趋势，LED显示屏上的显示模组上相邻的灯珠与灯珠之间的间距的越来越小，灯珠与灯珠之间的间隙不足以开设调节通孔，使得用户无法采用调节工具穿经显示模组来转动旋钮锁，无法对显示模组进行前维护。
发明内容
根据本申请的各种实施例，本申请提供了一种磁吸解锁固定装置和显示屏。
一个方面，本申请提供一种磁吸解锁固定装置，包括：
外壳，所述外壳的侧壁开设有避让口；
联动件，所述联动件收容于所述外壳内，且所述联动件可相对所述外壳移动；
卡扣，所述卡扣的一部分收容于所述外壳内，所述卡扣转动连接于所述外壳上，且所述卡扣与所述联动件联动设置；
初始状态时，所述卡扣的另一部分经由所述避让口显露在所述外壳外；所述联动件被配置为被磁吸工具所磁吸时，所述联动件靠近所述磁吸工具移动而带动所述卡扣转动，使得所述卡扣收起在所述避让口内。
在其中一个实施例中，所述卡扣包括联动部和自所述联动部延伸的限位部，所述卡扣的转动中心位于所述联动部和所述限位部之间，所述联动部位于所述外壳内且与所述联动件的外侧相贴合。
在其中一个实施例中，所述联动部设有用于辅助以便于与所述联动件实现联动的联动斜面。
在其中一个实施例中，所述联动件上设有用于辅助以便于与所述联动部实现联动的联动坡面。
在其中一个实施例中，所述磁吸解锁固定装置还包括限位件，所述外壳开设有卡持槽，所述限位件的一端连接于所述联动件，所述限位件的另一端能够随着所述联动件的移动而卡入或脱离所述卡持槽。
在其中一个实施例中，所述限位件包括第一导引部和自所述第一导引部的一端延伸的第二导引部，所述第一导引部的另一端连接于所述联动件上，所述第一导引部的外径大于所述第二导引部的外径，所述第一导引部和所述第二导引部之间形成限位台阶，所述外壳包括筒部和位于所述筒部的一端的端部，所述避让口开设于所述筒部上，所述端部上开设有相互连通的避让槽和所述卡持槽，所述避让槽的宽度大于所述第一导引部的外径，所述卡持槽的宽度大于所述第二导引部的外径且小于所述第一导引部的外径；
初始状态时，所述第一导引部位于所述避让槽；当所述联动件被磁吸工具所吸引朝远离所述端部的方向移动并转动后，所述第一导引部完全收容于所述筒部内，且所述限位台阶和所述端部的内侧相抵接，所述第二导引部位于所述卡持槽，以使得所述限位部稳定地收起在所述避让口内。
在其中一个实施例中，所述限位件上具有自所述第二导引部延伸的头部，所述头部的外径大于所述避让槽的宽度。
在其中一个实施例中，自所述限位部上朝远离所述联动部的方向延伸有阻隔部，所述阻隔部收容于所述筒部内，初始状态时，所述阻隔部和所述筒部的内壁相抵接。
在其中一个实施例中，所述联动件上设有限位阶，当所述联动件处于初始状态时，所述限位阶的外侧与所述阻隔部的一侧相贴合，使得所述卡扣无法转动收起；当所述联动件受磁吸工具磁吸移动后，所述限位阶与所述阻隔部错开以便于所述卡扣转动收起。
在其中一个实施例中，所述磁吸解锁固定装置还包括联动弹性件，所述联动弹性件位于所述联动件和所述端部之间。
在其中一个实施例中，所述卡扣通过转轴转动连接在所述避让口处，所述转轴上套设有扭簧，当所述卡扣收起在所述避让口时，所述扭簧产生弹性形变。
在其中一个实施例中，所述磁吸解锁固定装置还包括凸缘，所述凸缘固定地设置在所述外壳的外周面上，并位于所述避让口下方。
另一个方面，本申请提供一种显示屏，包括固定部件、显示模组和如前述的磁吸解锁固定装置，所述磁吸解锁固定装置安装并固定在所述显示模组靠近所述固定部件的背面，所述箱体上开设有安装孔，所述外壳穿经所述安装孔，当所述卡扣的另一部分经由所述避让口显露在所述外壳外时抵在所述固定部件的表面上实现对所述显示模组和所述固定部件的固定。
在其中一个实施例中，所述固定部件为箱体，当所述卡扣的另一部分经由所述避让口显露在所述外壳外时抵在所述箱体的内壁以实现对所述显示模组和所述固定部件的固定。
综上所述，本申请具有以下有益效果：本申请中的磁吸解锁固定装置，结构简单简易且适应性强，利用卡扣限位实现固定，安装可靠性能够满足抗风、抗震要求，利用磁吸工具的磁力实现解锁，能够非常好地实现前维护，且拆装方便，省时省力，能够非常好地满足固定方式的各种要求。
附图说明
构成本申请的一部分的附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是实施例一中的磁吸解锁固定装置的放大结构示意图；
图2是实施例一中的磁吸解锁固定装置的卡扣处于初始状态时的局部剖切后的放大结构示意图；
图3是实施例一中的磁吸解锁固定装置的卡扣收起时的局部剖切后的放大结构示意图；
图4是实施例二中的磁吸解锁固定装置的卡扣处于初始状态时的局部剖切后的放大结构示意图；
图5是实施例三中的显示屏的局部结构示意图。
具体实施方式
为了使本申请所要解决的技术问题、技术方案及有益效果更加清楚、明白，以下结合附图和实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
实施例一
如图1和图2所示，本实施例提供了一种磁吸解锁固定装置。该磁吸解锁固定装置包括外壳1、联动件2和卡扣3。外壳1的侧壁开设有避让口111。联动件2收容于外壳1内，且联动件2可相对外壳1移动。卡扣3的一部分收容于外壳1内。卡扣3转动连接在外壳1上。且卡扣3与联动件2联动设置。在初始状态时，卡扣3的另一部分经由避让口显露在外壳1外，以实现限位固定。当联动件2被配置为被磁吸工具所磁吸时，联动件2靠近磁吸工具移动而带动卡扣3转动，使得卡扣3收起在避让口111内。即，在该情况下，卡扣3被完全容纳在避让口111内。本实施例中的磁吸解锁固定装置，结构简单简易且适应性强。利用卡扣3限位实现固定，安装可靠性能够满足抗风、抗震要求，利用磁吸工具的磁力实现解锁，能够非常好地实现前维护，且拆装方便，省时省力，能够非常好地满足固定方式的各种要求。
在本实施例中，如图2和图3所示，卡扣3包括联动部31和自联动部31延伸的限位部32。卡扣3的转动中心位于联动部31和限位部32之间。联动部31位于外壳1内且与联动件2的外侧相贴合。在本实施例中，联动部31设有联动斜面311。该联动斜面311用于辅助以便于联动部31与联动件2实现联动。联动件2上设有联动坡面21。该联动坡面21用于辅助以便于联动件2与联动部31实现联动。
在本实施例中，该磁吸解锁固定装置还包括限位件4。外壳1可开设有卡持槽。限位件4的一端连接于联动件2，限位件4的另一端能够随着联动件2的移动而卡入或脱离卡持槽。具体地，如图2和图3所示，限位件4可包括第一导引部41和自第一导引部41的一端延伸的第二导引部42。第一导引部41的另一端连接于联动件2上。第一导引部41的外径大于第二导引部42的外径。第一导引部41和第二导引部42之间形成限位台阶43。外壳1包括筒部11 和位于筒部11一端的端部12。避让口111开设于筒部11上。端部12上开设有相互连通的避让槽121和卡持槽122。避让槽121的宽度大于或等于第一导引部41的外径。卡持槽122的宽度大于或等于第二导引部42的外径且小于第一导引部41的外径。在初始状态时，第一导引部41位于避让槽121。当联动件2被磁吸工具所吸引朝向远离端部12的方向移动并转动后，第一导引部41完全收容于筒部11内，且限位台阶43和端部12的内侧相抵接。在该情况下，第二导引部42位于卡持槽122中，以使得限位部32稳定地收起在避让口111内。限位件4上具有自第二导引部42延伸的头部44。头部44的外径大于避让槽121的宽度。在本实施例中，该磁吸解锁固定装置还包括联动弹性件5。联动弹性件5位于联动件2和端部12之间。当联动件2受磁吸工具磁吸移动后，联动弹性件5产生弹性形变。在本实施例中，联动弹性件5为压缩弹簧。在本实施例中，联动件2远离外壳1的端部12的一端设有磁吸件6。磁吸件6可以是磁铁或铁块，以便于与磁吸工具产生磁吸。因为安装了磁吸件6，联动件2的材质可以是不具有磁性的材质，例如铝或橡胶等。
在本实施例中，如图2和图3所示，在自限位部32上朝远离联动部31的方向上延伸有阻隔部33。阻隔部33收容于筒部11内。初始状态时，阻隔部33和筒部11的内壁相抵接。在本实施例中，联动件2设有限位阶22。当联动件2处于初始状态时，限位阶22的外侧与阻隔部33的一侧相贴合，使得卡扣3无法转动收起。当联动件2受磁吸工具磁吸移动后，限位阶22与阻隔部33错开以便于卡扣3转动收起。卡扣3通过转轴7转动连接在避让口111处。转轴7上套设有扭簧8。当卡扣3收起在避让口111中时，扭簧8产生弹性形变。在本实施例中，卡扣3共有两个。两个卡扣3对称设置设置在外壳1上。在本实施例中，联动部31位于卡扣3的靠近外壳1的端部12的一端。限位部32位于卡扣3的远离外壳1的端部12的一端。
此外，该磁吸解锁固定装置还包括凸缘6。凸缘6固定地设置在筒部11的外周面上。凸缘6可位于避让口111下方。凸缘6可与卡扣3相互协作以实现对至少两个待固定件的固定。例如，当限位部32经由避让口111显露在外时，凸缘安装在一个待固定件上，限位部32抵住另一个待固定件(例如，其内壁)以实现固定和限位。凸缘6可呈跑道形状，但不限于此。
实施例二
如图4所示，在本实施例中，本实施例与实施例一的区别在于：限位部320位于卡扣300的靠近外壳100的端部120的一端，联动部310位于卡扣300的远离外壳100的端部120的一端。限位部320呈钩状。当限位部320显露在外时，限位部320勾住另一个待固定件(例如，其内壁)实现限位固定。
实施例三
本实施例提供了一种显示屏，如图5所示。该显示屏包括固定部件500、显示模组600和实施例一中的磁吸解锁固定装置。磁吸解锁固定装置安装在显示模组600靠近固定装置500的背面。磁吸解锁固定装置的凸缘6可安装并固定在显示模组600靠近固定部件500的背面中。固定装置500上开设有安装孔510。外壳1可穿经安装孔510。卡扣3的限位部32经由避让口111显露在外时抵在固定部件500的表面上，从而凸缘6和卡扣3相互协作以实现对显示模组600和固定部件500的固定。固定部件500可以为箱体。当固定部件500为箱体时，卡扣3的限位部32可经由避让口111显露在外时抵在箱体的内壁。值得说明的是，该磁吸解锁固定装置也可以是实施例二中的磁吸解锁固定装置。此外，磁吸解锁固定装置也可以应用在任意两个需要固定在一起的待固定件之间。
可以理解的是，本实施例的显示屏可以是LED显示屏、LCD显示屏、OLED显示屏、QLED显示屏等需要显示输出终端。即本申请实施例中的实施例一中的磁吸解锁固定装置和实施例二中的磁吸解锁固定装置可以适应不同种类的拼接类显示输出终端。
在固定LED显示屏时，通过使用根据本申请的实施例的磁吸解锁固定装置，可解决现有技术中灯珠的间距较小时显示模组无法前维护的问题。
以上具体实施例仅仅是对本申请的解释，其并不是对本申请的限制，本领域技术人员在阅读完本说明书后可以根据需要对以上实施例做出没有创造性贡献的修改，但只要在本申请的权利要求范围内都受到专利法的保护。

Claims (14)

  1. 一种磁吸解锁固定装置，其特征在于，包括：
    外壳，所述外壳的侧壁开设有避让口；
    联动件，所述联动件收容于所述外壳内，且所述联动件可相对所述外壳移动；
    卡扣，所述卡扣的一部分收容于所述外壳内，所述卡扣转动连接于所述外壳上，且所述卡扣与所述联动件联动设置；
    初始状态时，所述卡扣的另一部分经由所述避让口显露在所述外壳外；所述联动件被配置为被磁吸工具所磁吸时，所述联动件靠近所述磁吸工具移动而带动所述卡扣转动，使得所述卡扣收起在所述避让口内。
  2. 根据权利要求1所述的磁吸解锁固定装置，其特征在于：所述卡扣包括联动部和自所述联动部延伸的限位部，所述卡扣的转动中心位于所述联动部和所述限位部之间，所述联动部位于所述外壳内且与所述联动件的外侧相贴合。
  3. 根据权利要求2所述的磁吸解锁固定装置，其特征在于：所述联动部设有用于辅助以便于与所述联动件实现联动的联动斜面。
  4. 根据权利要求2所述的磁吸解锁固定装置，其特征在于：所述联动件上设有用于辅助以便于与所述联动部实现联动的联动坡面。
  5. 根据权利要求2所述的磁吸解锁固定装置，其特征在于：所述磁吸解锁固定装置还包括限位件，所述外壳开设有卡持槽，所述限位件的一端连接于所述联动件，所述限位件的另一端能够随着所述联动件的移动而卡入或脱离所述卡持槽。
  6. 根据权利要求5所述的磁吸解锁固定装置，其特征在于：所述限位件包括第一导引部和自所述第一导引部的一端延伸的第二导引部，所述第一导引部的另一端连接于所述联动件上，所述第一导引部的外径大于所述第二导引部的外径，所述第一导引部和所述第二导引部之间形成限位台阶；所述外壳包括筒部和位于所述筒部的一端的端部，所述避让口开设于所述筒部上，所述端部上开设有相互连通的避让槽和所述卡持槽，所述避让槽的宽度大于所述第一导引部的外径，所述卡持槽的宽度大于所述第二导引部的外径且小于所述第一导引部的外径；
    初始状态时，所述第一导引部位于所述避让槽；当所述联动件被磁吸工具所吸引朝远离所述端部的方向移动并转动后，所述第一导引部完全收容于所述筒部内，且所述限位台阶和所述端部的内侧相抵接，所述第二导引部位于所述卡持槽，以使得所述限位部稳定地收起在所述避让口内。
  7. 根据权利要求6所述的磁吸解锁固定装置，其特征在于：所述限位件上具有自所述第二导引部延伸的头部，所述头部的外径大于所述避让槽的宽度。
  8. 根据权利要求5所述的磁吸解锁固定装置，其特征在于：自所述限位部上朝远离所述联动部的方向延伸有阻隔部，所述阻隔部收容于所述筒部内，初始状态时，所述阻隔部和所述筒部的内壁相抵接。
  9. 根据权利要求8所述的磁吸解锁固定装置，其特征在于：所述联动件上设有限位阶，当所述联动件处于初始状态时，所述限位阶的外侧与所述阻隔部的一侧相贴合，使得所述卡扣无法转动收起；当所述联动件受磁吸工具磁吸移动后，所述限位阶与所述阻隔部错开以便于所述卡扣转动收起。
  10. 根据权利要求6所述的磁吸解锁固定装置，其特征在于：还包括联动弹性件，所述联动弹性件位于所述联动件和所述端部之间。
  11. 根据权利要求1所述的磁吸解锁固定装置，其特征在于：所述卡扣通过转轴转动连接在所述避让口处，所述转轴上套设有扭簧，当所述卡扣收起在所述避让口时，所述扭簧产生弹性形变。
  12. 根据权利要求1所述的磁吸解锁固定装置，其特征在于：还包括凸缘，所述凸缘固定地设置在所述外壳的外周面上，并位于所述避让口下方。
  13. 一种显示屏，其特征在于：包括固定部件、显示模组和如权利要求1-12中任一项所述的磁吸解锁固定装置，所述磁吸解锁固定装置安装并固定在所述显示模组靠近所述固定部件的背面，所述箱体上开设有安装孔，所述外壳穿经所述安装孔，当所述卡扣的另一部分经由所述避让口显露在所述外壳外时抵在所述固定部件的表面上以实现对所述显示模组和所述固定部件的固定。
  14. 根据权利要求13所述的显示屏，其特征在于：所述固定部件为箱体，当所述卡扣的另一部分经由所述避让口显露在所述外壳外时抵在所述箱体的内壁以实现对所述显示模组和所述固定部件的固定。
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