WO2018188397A1 - 一种电动锁扣及采用该锁扣的显示屏 - Google Patents

一种电动锁扣及采用该锁扣的显示屏 Download PDF

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Publication number
WO2018188397A1
WO2018188397A1 PCT/CN2018/072416 CN2018072416W WO2018188397A1 WO 2018188397 A1 WO2018188397 A1 WO 2018188397A1 CN 2018072416 W CN2018072416 W CN 2018072416W WO 2018188397 A1 WO2018188397 A1 WO 2018188397A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
connecting member
gear
lock
threaded portion
Prior art date
Application number
PCT/CN2018/072416
Other languages
English (en)
French (fr)
Inventor
贺金锋
杨振礼
Original Assignee
深圳市洲明科技股份有限公司
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 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
Priority to RU2018145046A priority Critical patent/RU2702731C1/ru
Priority to EP18785041.7A priority patent/EP3457825B1/en
Priority to AU2018252568A priority patent/AU2018252568B2/en
Priority to US16/309,389 priority patent/US10941588B2/en
Publication of WO2018188397A1 publication Critical patent/WO2018188397A1/zh

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06Means for converting reciprocating motion into rotary motion or vice versa
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/33Indicating 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 being semiconductor devices, e.g. diodes
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0208Interlock mechanisms; Means for avoiding unauthorised use or function, e.g. tamperproof
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • H05K5/0221Locks; Latches
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • H05K5/0226Hinges
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B2047/0014Constructional features of actuators or power transmissions therefor
    • E05B2047/0018Details of actuator transmissions
    • E05B2047/002Geared transmissions
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0012Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors

Definitions

  • the present invention relates to the field of display screens, and in particular, to an electric lock and a display screen using the same.
  • a large LED display screen is usually formed by splicing a plurality of display box bodies, and adjacent display box bodies are connected by a connection lock or a connecting plate.
  • the existing connection lock structure is complicated and occupied. More internal space of the display box does not meet the trend of thin and light display. Moreover, it is troublesome to disassemble the display case that is connected using the existing connection lock.
  • the technical problem to be solved by the present invention is to provide an electric lock, which has a simple structure, a small size, and is easy to operate.
  • a display screen using the above lock is also provided.
  • an electric lock comprising a main lock and a secondary lock
  • the main lock includes a casing, a drive assembly and a first
  • the driving component comprises a driving component and a rotating shaft rotatably disposed on the housing, wherein one end of the rotating shaft is provided with a first threaded portion; and one end of the first connecting component is provided with a second fitting corresponding to the first threaded portion a threaded portion, the other end is provided with a third threaded portion
  • the secondary buckle comprises a first sleeve, an elastic member and a second connecting member rotatably disposed in the first sleeve, the elastic member is disposed in the first sleeve
  • a second connecting member is disposed on the second connecting member, the second connecting member is provided with a fourth threaded portion adapted to the third threaded portion, and the second connecting member is movably disposed along the axis of the first sle
  • the present invention also adopts another technical solution: A display screen, wherein the above-mentioned electric lock connection is adopted between adjacent display box bodies.
  • the utility model has the following advantages: the electric lock is divided into a main lock and a secondary lock, the main and auxiliary locks are simple in structure and small in size; and the auxiliary lock is provided with an elastic member, which is beneficial to reduce the electric lock.
  • the assembly precision requirements bring great convenience to the user; the electric control main and auxiliary locks are connected and separated, and the operation is simple; the display adopts the above-mentioned electric lock, which is convenient for the producer to make the display box lighter and thinner.
  • 1 is a cross-sectional view showing the electric lock of the first embodiment of the present invention connecting two display case bodies;
  • FIG. 2 is a schematic view showing the overall structure of a main lock in an electric lock according to a first embodiment of the present invention (the first connecting member is extended);
  • FIG 3 is a cross-sectional view of a main lock in an electric lock according to a first embodiment of the present invention (the first connecting member is extended)
  • FIG. 4 is an exploded view of a main lock in an electric lock according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic view showing an overall structure of a sub-lock in an electric lock according to a first embodiment of the present invention
  • FIG. 6 is an exploded view of a secondary latch in the electric lock according to the first embodiment of the present invention.
  • the electric lock is divided into two parts respectively mounted on the adjacent display box, wherein the driving member in the main lock drives the first connecting member to move in the axial direction and Second in the secondary lock
  • the connector is threaded.
  • an electric lock includes a main lock 1 and a sub-lock 2.
  • the main lock 1 includes a housing 11 in which a drive assembly and a first portion are disposed.
  • the connecting member 12 includes a driving member 13 and a rotating shaft 14 rotatably disposed on the housing 11.
  • One end of the rotating shaft 14 is provided with a first threaded portion 15; one end of the first connecting member 12 is provided with a first thread a second threaded portion 16 adapted to the portion 15 and a third threaded portion at the other end;
  • the secondary latch 2 includes a first sleeve 21, an elastic member 22 and a first rotatably disposed in the first sleeve 21
  • the second connecting member 23 is disposed in the first sleeve 21 and has one end abutting the second connecting member 23, and the second connecting member 23 is provided with a fourth thread portion adapted to the third threaded portion.
  • the second connecting member 23 is movably disposed along the axis of the first sleeve 21; the driving member 13 drives the first connecting member 12 to move axially along the rotating shaft 14 through the rotating shaft 14, and the first connecting member 12 is in contact with the second The rotation of the rotating shaft 14 after the connecting member 23 drives the first connecting member 12 to rotate.
  • a display screen wherein the above-mentioned electric lock connection is adopted between adjacent display box bodies.
  • the sub-lock 2 is provided with an elastic member 22 and the second connecting member 23 can be axially displaced along the first sleeve 21, and the first connecting member 12 just contacts the second connecting member 23 and the third thread
  • the second connecting member 23 can also be moved slightly by a distance so that the first connecting member 12 and the second connecting member 23 are engaged.
  • the utility model has the following advantages: the electric lock is divided into a main lock and a secondary lock, and the main and auxiliary locks are simple in structure and small in size; the auxiliary lock is provided with elastic members, It is beneficial to reduce the assembly precision requirements of the electric lock, which brings great convenience to the user.
  • the electric control main and auxiliary locks are connected and separated, and the operation is simple; the display adopts the above electric lock, which is convenient for the producer to make the display box. Thinner
  • the main latch 1 further includes a reduction gear set 17 disposed in the housing 11, and the driving member 13 drives the rotating shaft 14 to rotate by the reduction gear set 17.
  • the main lock is provided with a reduction gear set, and the high-speed small torque rotation of the rotating shaft is converted into a low-speed high-torque rotation, which facilitates the connection between the first connecting member and the second connecting member.
  • the reduction gear set 17 includes a first gear 171, a second gear 172, a third gear 173, and a fourth gear 174, and the second gear 172 includes a first tooth portion and a second tooth portion.
  • the third gear 173 includes a third tooth portion and a fourth tooth portion; the first gear 171 is sleeved on the output shaft of the driving member 13, and the second gear 172 and the third gear 173 are respectively rotatably disposed in the housing 11.
  • the fourth gear 174 is sleeved on the rotating shaft 14 ⁇ ; the outer diameter of the first tooth portion is greater than the outer diameter of the second tooth portion and the first gear portion 171, respectively, and the outer diameter of the third tooth portion is greater than the second tooth portion and the fourth portion, respectively.
  • the outer diameter of the tooth portion, the outer diameter of the fourth gear 174 is larger than the outer diameter of the fourth tooth portion; the first gear 171 meshes with the first tooth portion, the second tooth portion meshes with the third tooth portion, and the fourth tooth portion and the The four gears 174 are engaged.
  • the present invention employs a three-stage reduction drive gear set to achieve multi-stage deceleration without increasing the volume of the main lock.
  • the secondary buckle 2 further includes a manual unlocking assembly 24, the manual unlocking assembly 24 includes a second sleeve 241 and an unlocking member 242, and the second sleeve 241 is disposed on the peripheral wall of the first sleeve 21.
  • the manual unlocking component is provided, and in the case of power failure or motor damage, manual rotation and unlocking can also be performed, which greatly improves the operability of the electric lock.
  • the unlocking member 242 has an unlocking hole disposed along an axis thereof.
  • the unlocking hole is a one-shaped groove, a cross-shaped groove, a triangular groove, a regular hexagonal groove or a screw hole.
  • the unlocking member is provided with an unlocking hole, so that the worker can use the tool to unlock, which is beneficial to reduce the difficulty of manually unlocking the electric lock, reduce the labor intensity of the worker, and improve the unlocking efficiency.
  • the shape/form of the unlocking hole should not be limited to the specific manners listed above. It is also feasible to set the unlocking hole to a non-standard shape. Setting the non-standard shape can prevent others from maliciously unlocking the electric lock, causing an accident. property loss. Of course, in order to facilitate the unlocking, it is not necessary to set an unlocking hole on the unlocking member, for example, It is also feasible to set the rotating part and manually rotate the rotating part to perform the rotation and unlocking.
  • a cover is disposed at one end of the first sleeve 21 away from the second connecting member 23, and the other end of the elastic member 22 abuts the cover.
  • the sub-lock 2 further includes a rib 25, and the rib 25 is disposed on the peripheral wall of the first sleeve 21.
  • the rib 25 is provided with a mounting hole.
  • the ribs are provided, and the mounting holes are provided on the ribs so that the position of the sub-locks at the mounting position does not change, which is advantageous for improving the stability of the electric lock.
  • a first embodiment of the present invention is as follows: As shown in FIG. 1, a display screen is connected with an electric lock between adjacent display box bodies, and the electric lock is connected.
  • the buckle includes a main lock 1 and a secondary lock 2, the main lock 1 is disposed on the first display box, and the secondary lock 2 is disposed on the second display box.
  • the main lock 1 as shown in FIG. 2 to FIG. 4 including a housing 11 in which a drive assembly and a first connecting member 12 are disposed;
  • the drive assembly includes a driving member 13 and is rotatably disposed in the housing 11
  • On the upper rotating shaft 14 one end of the rotating shaft 14 is provided with a first threaded portion 15; one end of the first connecting member 12 is provided with a second threaded portion 16 adapted to the first threaded portion 15, and the other end is provided with a third Threaded portion;
  • the secondary buckle 2 includes a first sleeve 21 , an elastic member 22, and a second connecting member 23 rotatably disposed in the first sleeve 21.
  • the elastic member 22 is provided.
  • the second connecting member 23 is provided with a fourth threaded portion adapted to the third threaded portion, and the second connecting member 23 is along the first
  • the axis of the sleeve 21 is movably disposed; the driving member 13 drives the axial movement of the first connecting member 12 along the rotating shaft 14 through the rotating shaft 14, and the rotation of the rotating shaft 14 after the first connecting member 12 abuts against the second connecting member 23
  • the first connecting member 12 is driven to rotate.
  • the first threaded portion 15 is helical, i.e. the first connecting member 12 and the rotating shaft 14 are helically driven.
  • first threaded portion 15 may not be integrally formed with the rotating shaft 14.
  • the first display box body and the second display box body are respectively provided with through holes for the first connecting member 12 to pass through, Two connectors 23 are aligned with the through holes.
  • One end of the first sleeve 21 away from the second connecting member 23 is provided with a cover, and the other end of the elastic member 22 abuts the cover. It can be understood that when the cover sleeve is not disposed on the first sleeve 21, the other end of the elastic member 22 is abutted on the side wall of the display box for accommodating the receiving position of the sub-lock 2;
  • the cartridge 21 is provided with a cover ⁇ , which can avoid the loss of the elastic member 22 caused by the disassembly and assembly of the secondary buckle 2.
  • the elastic member 22 is a spring.
  • the main latch 1 further includes a reduction gear set 107 provided in the housing 11, and the driving member 13 drives the rotating shaft 14 through the reduction gear set 17.
  • the reduction gear set 17 in this embodiment is a three-stage reduction structure. Specifically, the reduction gear set 17 includes a first gear 171, a second gear 172, a third gear 173, and a fourth gear 174, and the second gear 172.
  • the first gear portion and the second tooth portion are connected, and the third gear 173 includes a third tooth portion and a fourth tooth portion; the first gear 171 is sleeved on the output shaft of the driving member 13, the second gear 172 and The third gear 173 is rotatably disposed in the housing 11, and the fourth gear 174 is sleeved on the rotating shaft 14; the outer diameter of the first tooth portion is larger than the outer diameter of the second tooth portion and the first gear 171, respectively.
  • the outer diameter of the tooth portion is larger than the outer diameters of the second tooth portion and the fourth tooth portion, respectively, and the outer diameter of the fourth gear portion 174 is larger than the outer diameter of the fourth tooth portion; the first gear 171 meshes with the first tooth portion, the second tooth The portion engages with the third tooth portion, and the fourth tooth portion meshes with the fourth gear portion 174. It will be appreciated that in other embodiments, the reduction gear set 17 can be other levels of deceleration.
  • the housing 11 of the main latch 1 is divided into three cavities, which are a left cavity 111, a right cavity 112 and a lower cavity 113, and the length of the lower cavity 113 is equal to the left.
  • the reduction gear set 17 is disposed in the lower cavity 113, the rotation shaft 14 and the first connecting member 12 are disposed in the left cavity 111, and the driving member 13 is disposed in the right cavity 112.
  • the driving member 13 is a motor.
  • the secondary lock 2 further includes a manual unlocking assembly 24, and the manual unlocking assembly 24
  • the second sleeve 24 1 and the unlocking member 242 are disposed on the peripheral wall of the first sleeve 21 and perpendicular to the first sleeve 21; the connection between the first sleeve 21 and the second sleeve 241
  • the hollow portion of the second sleeve 241 is in communication with the hollow portion of the first sleeve 21;
  • the unlocking member 242 is provided with a fifth threaded portion 243 and the unlocking member 242 is rotatably disposed in the second sleeve 241;
  • the connector member 23 is provided with a sixth threaded portion 18 that is adapted to the fifth threaded portion 243.
  • Both the first threaded portion 15 and the fifth threaded portion 243 have a larger thread angle, and preferably the range of the thread angle is 25°-65°, the threaded angles of the first threaded portion 15 and the fifth threaded portion 243 of the present embodiment are respectively 45°, that is, the unlocking member 242 and the second connecting member 23 are also screwed.
  • the unlocking member 242 has a cylindrical structure, and the unlocking member 242 has an unlocking hole disposed along an axis thereof.
  • the unlocking hole is a slotted groove, a cross-shaped groove, a triangular groove, and a sixth Angled groove or screw hole. The worker can use the tool to unlock the unlocking member 242 with the unlocking hole to unlock the electric lock.
  • the unlocking holes can also be other non-standard shaped gutters to prevent others from maliciously unlocking the electric lock.
  • the unlocking member 242 may not be provided with an unlocking hole, and it is also possible to provide a rotating portion on the unlocking member 242, which needs to be manually unlocked, and the rotating rotating portion can also conveniently unlock the electric locking buckle to disassemble the display. Box. a cutout corresponding to the unlocking hole or the rotating portion is disposed on the display box body on which the secondary latch is mounted, and the rotating portion protrudes from the opening or the worker can extend the tool from the opening Unlock the electric lock.
  • the sub-lock 2 further includes a rib 25, and the rib 25 is disposed on the peripheral wall of the first sleeve 21, and the rib 25 is mounted thereon. hole.
  • two ribs 25 are provided, one rib 25 is disposed on a side opposite to the second sleeve 241, and the other rib 25 is sleeved on the second sleeve 241 and is coupled to the first sleeve. 21 connections.
  • the electric lock provided by the present invention and the display screen using the same have a simple structure and a small size; and the auxiliary lock is provided with an elastic member, which is beneficial to reducing the assembly precision requirement of the electric lock.
  • the electric control main and auxiliary lock connection separation, easy to operate; with reduction gear set, which facilitates the connection between the first connector and the second connector; set the manual unlocking component, in the event of power failure or In the case of a damaged motor, it can also be manually rotated and unlocked, which greatly improves the operability of the electric lock.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Power Engineering (AREA)
  • Casings For Electric Apparatus (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Lock And Its Accessories (AREA)

Abstract

一种电动锁扣及采用电动锁扣的显示屏,电动锁扣包括主锁扣(1)和副锁扣(2),主锁扣(1)包括壳体(11)、驱动组件和第一连接件(12);驱动组件的一端设有第一螺纹部(15);第一连接件(12)的一端设有与第一螺纹部(15)相适配的第二螺纹部(16),另一端设有第三螺纹部;副锁扣(2)包括第一套筒(21)、弹性件(22)和可转动设于第一套筒(21)内的第二连接件(23),弹性件(22)设于第一套筒(21)内且其一端抵持第二连接件(23),第二连接件(23)上设有与第三螺纹部相适配的第四螺纹部,第二连接件(23)沿第一套筒(21)的轴线可移动设置;驱动件驱动第一连接件(12)沿轴向移动,在第一连接件(12)抵触到第二连接件(23)之后驱动件驱动第一连接件(12)转动。该电动锁扣结构简单、操作方便、体积小巧。

Description

发明名称:一种电动锁扣及釆用该锁扣的显示屏 技术领域
[0001] 本发明涉及显示屏领域, 尤其涉及一种电动锁扣及采用该锁扣的显示屏。
背景技术
[0002] 一个大的 LED显示屏通常是用多个显示屏箱体拼接而成的, 相邻显示屏箱体之 间通过连接锁扣或连接板连接, 现有的连接锁扣结构复杂, 占用了较多的显示 屏箱体的内部空间, 不符合显示屏轻薄化的发展趋势。 而且, 使用现有连接锁 扣连接的显示屏箱体拆装麻烦。
技术问题
[0003] 本发明所要解决的技术问题是: 提供一种电动锁扣, 该电动锁扣结构简单、 体 积小巧、 操作简便; 另外, 还提供一种采用上述锁扣的显示屏。
问题的解决方案
技术解决方案
[0004] 为了解决上述技术问题, 本发明采用的技术方案为: 一种电动锁扣, 包括主锁 扣和副锁扣, 所述主锁扣包括壳体, 壳体内设有驱动组件和第一连接件; 驱动 组件包括驱动件和可转动设置在壳体上的转动轴, 转动轴的一端设有第一螺纹 部; 第一连接件的一端设有与第一螺纹部相适配的第二螺纹部, 另一端设有第 三螺纹部; 所述副锁扣包括第一套筒、 弹性件和可转动设于第一套筒内的第二 连接件, 弹性件设于第一套筒内且其一端抵持第二连接件, 所述第二连接件上 设有与第三螺纹部相适配的第四螺纹部, 第二连接件沿第一套筒的轴线可移动 设置; 驱动件通过转动轴驱动第一连接件沿转动轴的轴向移动, 在第一连接件 抵触到第二连接件之后转动轴的转动带动第一连接件转动。
[0005] 本发明还采用另一技术方案: 一种显示屏, 相邻显示屏箱体之间采用上述的电 动锁扣连接。 发明的有益效果
有益效果
[0006] 本发明的有益效果在于: 该电动锁扣分为主锁扣和副锁扣, 主、 副锁扣结构简 单、 体积小巧; 副锁扣中设有弹性件, 有利于降低电动锁扣的装配精度要求, 为用户带来巨大便利; 电动控制主、 副锁扣的连接、 分离, 操作简便; 显示屏 采用上述电动锁扣, 方便生产者将显示屏箱体制作得更轻薄。
对附图的简要说明
附图说明
[0007] 图 1为本发明实施例一的电动锁扣连接两个显示屏箱体吋的剖视图;
[0008] 图 2为本发明实施例一的电动锁扣中的主锁扣的整体结构的示意图 (第一连接 件伸出吋) ;
[0009] 图 3为本发明实施例一的电动锁扣中的主锁扣的剖视图 (第一连接件伸出吋)
[0010] 图 4为本发明实施例一的电动锁扣中的主锁扣的***图;
[0011] 图 5为本发明实施例一的电动锁扣中的副锁扣的整体结构的示意图;
[0012] 图 6为本发明实施例一的电动锁扣中的副锁扣的***图。
[0013] 标号说明:
[0014] 1、 主锁扣; 11、 壳体; 111、 左腔体; 112、 右腔体; 113、 下腔体;
[0015] 12、 第一连接件; 13、 驱动件; 14、 转动轴; 15、 第一螺纹部;
[0016] 16、 第二螺纹部; 17、 减速齿轮组; 171、 第一齿轮; 172、 第二齿轮;
[0017] 173、 第三齿轮; 174、 第四齿轮; 18、 第六螺纹部; 2、 副锁扣;
[0018] 21、 第一套筒; 22、 弹性件; 23、 第二连接件; 24、 手动解锁组件;
[0019] 241、 第二套筒; 242、 解锁件; 243、 第五螺纹部; 25、 肋板。
具体实施方式
[0020] 本发明最关键的构思在于: 电动锁扣分为两个分别安装在相邻显示屏箱体上的 部分, 其中主锁扣中的驱动件驱动第一连接件沿轴向移动并与副锁扣中的第二 连接件螺纹连接。
[0021] 请参照图 1至图 6, 一种电动锁扣, 包括主锁扣 1和副锁扣 2, 所述主锁扣 1包括 壳体 11, 壳体 11内设有驱动组件和第一连接件 12; 驱动组件包括驱动件 13和可 转动设置在壳体 11上的转动轴 14, 转动轴 14的一端设有第一螺纹部 15; 第一连 接件 12的一端设有与第一螺纹部 15相适配的第二螺纹部 16, 另一端设有第三螺 纹部; 所述副锁扣 2包括第一套筒 21、 弹性件 22和可转动设于第一套筒 21内的第 二连接件 23, 弹性件 22设于第一套筒 21内且其一端抵持第二连接件 23, 所述第 二连接件 23上设有与第三螺纹部相适配的第四螺纹部, 第二连接件 23沿第一套 筒 21的轴线可移动设置; 驱动件 13通过转动轴 14驱动第一连接件 12沿转动轴 14 的轴向移动, 在第一连接件 12抵触到第二连接件 23之后转动轴 14的转动带动第 一连接件 12转动。
[0022] 一种显示屏, 相邻显示屏箱体之间采用上述的电动锁扣连接。
[0023] 本发明电动锁扣的结构原理简述如下: 当主锁扣 1与副锁扣 2连接吋, 驱动件 13 驱动转动轴 14转动, 幵始吋, 第一连接件 12未与第二连接件 23抵触, 驱动件 13 驱动转动轴 14带动第一连接件 12沿转动轴 14的轴向移动; 后来, 第一转动件移 动一段距离后与第二连接件 23接触, 第一转动件的轴向移动受到限制, 转动轴 1 4将带动第一连接件 12旋转, 从而使第一连接件 12与第二连接件 23完成螺接。 另 夕卜, 副锁扣 2中设有弹性件 22且第二连接件 23能够沿第一套筒 21进行轴向位移, 在第一连接件 12刚刚接触到第二连接件 23而第三螺纹部与第四螺纹部不能啮合 的情况下, 第二连接件 23还能稍稍移动一点点距离以便第一连接件 12与第二连 接件 23配合。
[0024] 从上述描述可知, 本发明的有益效果在于: 该电动锁扣分为主锁扣和副锁扣, 主、 副锁扣结构简单、 体积小巧; 副锁扣中设有弹性件, 有利于降低电动锁扣 的装配精度要求, 为用户带来巨大便利; 电动控制主、 副锁扣的连接、 分离, 操作简便; 显示屏采用上述电动锁扣, 方便生产者将显示屏箱体制作得更轻薄
[0025] 进一步的, 所述主锁扣 1还包括设于壳体 11内的减速齿轮组 17, 驱动件 13通过 所述减速齿轮组 17驱动转动轴 14转动。 [0026] 由上述描述可知, 主锁扣设置减速齿轮组, 将转动轴的高速小扭矩转动转化为 低速大扭矩转动, 有利于第一连接件与第二连接件的连接。
[0027] 进一步的, 所述减速齿轮组 17包括第一齿轮 171、 第二齿轮 172、 第三齿轮 173 和第四齿轮 174, 第二齿轮 172包括相连的第一齿部和第二齿部, 第三齿轮 173包 括相连第三齿部和第四齿部; 第一齿轮 171套设在驱动件 13的输出轴上, 第二齿 轮 172和第三齿轮 173分别可转动设置在壳体 11内, 第四齿轮 174套设在转动轴 14 ±; 第一齿部的外径分别大于第二齿部和第一齿轮 171的外径, 第三齿部的外径 分别大于第二齿部和第四齿部的外径, 第四齿轮 174的外径大于第四齿部的外径 ; 第一齿轮 171与第一齿部啮合, 第二齿部与第三齿部啮合, 第四齿部与第四齿 轮 174啮合。
[0028] 由上述描述可知, 本发明采用三级减速传动齿轮组, 在不增加主锁扣体积的前 提下, 实现多级减速。
[0029] 进一步的, 所述副锁扣 2还包括手动解锁组件 24, 所述手动解锁组件 24包括第 二套筒 241和解锁件 242, 第二套筒 241设于第一套筒 21的周壁上且与第一套筒 21 垂直; 在第一套筒 21与第二套筒 241的连接处, 第二套筒 241的中空区域与第一 套筒 21的中空区域相连通; 解锁件 242上设有第五螺纹部 243且解锁件 242可转动 设置在第二套筒 241内; 第二连接件 23上设有与第五螺纹部 243相适配的第六螺 纹部 18。
[0030] 由上述描述可知, 设置手动解锁组件, 在停电或电机损坏的情况下, 也能够进 行人工旋转解锁, 大大提高了电动锁扣的可操作性。
[0031] 进一步的, 解锁件 242具有沿其轴线设置的解锁孔。
[0032] 进一步的, 解锁孔为一字型幵槽、 十字型幵槽、 三角形幵槽、 正六角形幵槽或 螺孔。
[0033] 由上述描述可知, 解锁件上设有解锁孔, 使得工作人员能够借用工具解锁, 有 利于降低电动锁扣手动解锁难度, 降低工作人员劳动强度, 提高解锁效率。 另 夕卜, 解锁孔的形状 /形式不应只限定在上述列出的具体方式, 将解锁孔设置成非 标形状也是可行的, 设置非标形状可以防止他人恶意解锁电动锁扣, 引起意外 后财产损失。 当然, 为方便解锁, 解锁件上也并非一定要设置解锁孔, 比如, 设置旋转部, 人工手持旋转部进行旋转解锁也是可行的。
[0034] 进一步的, 所述第一套筒 21远离第二连接件 23的一端设有封盖, 所述弹性件 22 的另一端抵持所述封盖。
[0035] 由上述描述可知, 在没设置封盖吋, 弹性件的一端抵持第二连接件, 另一端抵 持容纳其的安装位的侧壁上; 在设置有封盖吋, 弹性件的两端分别抵持第二连 接件与封盖, 设置封盖的好处在于, 可以避免安装或维护副锁扣吋弹性件丢失
[0036] 进一步的, 所述副锁扣 2还包括肋板 25, 所述肋板 25设于第一套筒 21的周壁上
, 肋板 25上设有安装孔。
[0037] 由上述描述可知, 设置肋板, 在肋板上设置安装孔, 使得副锁扣在安装位的位 置不会发生变化, 有利于提高电动锁扣的稳定性。
[0038]
[0039] 实施例一
[0040] 请参照图 1至图 6, 本发明的实施例一为: 如图 1所示, 一种显示屏, 相邻显示 屏箱体之间采用一种电动锁扣连接, 所述电动锁扣包括主锁扣 1和副锁扣 2, 主 锁扣 1设于第一显示屏箱体上, 副锁扣 2设于第二显示屏箱体上。
[0041] 请结合如 2至图 4所述主锁扣 1包括壳体 11, 壳体 11内设有驱动组件和第一连接 件 12; 驱动组件包括驱动件 13和可转动设置在壳体 11上的转动轴 14, 转动轴 14 的一端设有第一螺纹部 15; 第一连接件 12的一端设有与第一螺纹部 15相适配的 第二螺纹部 16, 另一端设有第三螺纹部; 如图 5和图 6所示, 所述副锁扣 2包括第 一套筒 21、 弹性件 22和可转动设于第一套筒 21内的第二连接件 23, 弹性件 22设 于第一套筒 21内且其一端抵持第二连接件 23, 所述第二连接件 23上设有与第三 螺纹部相适配的第四螺纹部, 第二连接件 23沿第一套筒 21的轴线可移动设置; 驱动件 13通过转动轴 14驱动第一连接件 12沿转动轴 14的轴向移动, 在第一连接 件 12抵触到第二连接件 23之后转动轴 14的转动带动第一连接件 12转动。 优选第 一螺纹部 15为螺旋, 即第一连接件 12与转动轴 14是螺旋传动的。
[0042] 可以理解的, 第一螺纹部 15可以不是与转动轴 14一体成型的。
[0043] 第一显示屏箱体和第二显示屏箱体上分别设有供第一连接件 12穿过的通孔, 第 二连接件 23与所述通孔对齐。
[0044] 所述第一套筒 21远离第二连接件 23的一端设有封盖, 所述弹性件 22的另一端抵 持所述封盖。 可以理解的, 当第一套筒 21上没有设置封盖吋, 弹性件 22的另一 端抵持在显示屏箱体用于容纳副锁扣 2的容置位的侧壁上; 当第一套筒 21设有封 盖吋, 可以避免拆装副锁扣 2导致弹性件 22丢失, 本实施例中, 弹性件 22为弹簧
[0045] 如图 3和图 4所示, 进一步的, 所述主锁扣 1还包括设于壳体 11内的减速齿轮组 1 7, 驱动件 13通过所述减速齿轮组 17驱动转动轴 14转动。 本实施例中的减速齿轮 组 17为三级减速结构, 具体来说, 所述减速齿轮组 17包括第一齿轮 171、 第二齿 轮 172、 第三齿轮 173和第四齿轮 174, 第二齿轮 172包括相连的第一齿部和第二 齿部, 第三齿轮 173包括相连第三齿部和第四齿部; 第一齿轮 171套设在驱动件 1 3的输出轴上, 第二齿轮 172和第三齿轮 173分别可转动设置在壳体 11内, 第四齿 轮 174套设在转动轴 14上; 第一齿部的外径分别大于第二齿部和第一齿轮 171的 外径, 第三齿部的外径分别大于第二齿部和第四齿部的外径, 第四齿轮 174的外 径大于第四齿部的外径; 第一齿轮 171与第一齿部啮合, 第二齿部与第三齿部啮 合, 第四齿部与第四齿轮 174啮合。 可以理解的, 在其他实施例中, 减速齿轮组 17可以为其他级别的减速结构。
[0046] 作为一种优选方式, 主锁扣 1的壳体 11内分为三个腔体, 分别为左腔体 111、 右 腔体 112和下腔体 113, 下腔体 113的长度等于左、 右腔体 112长度之和。 减速齿 轮组 17设于下腔体 113中, 转动轴 14和第一连接件 12设于左腔体 111中, 驱动件 1 3设于右腔体 112中。 本实施例中, 驱动件 13为电机。
[0047] 如图 5和图 6所示, 为防止停电、 驱动件 13故障等突发情况导致电动锁扣无法解 锁, 所述副锁扣 2还包括手动解锁组件 24, 所述手动解锁组件 24包括第二套筒 24 1和解锁件 242, 第二套筒 241设于第一套筒 21的周壁上且与第一套筒 21垂直; 在 第一套筒21与第二套筒 241的连接处, 第二套筒 241的中空区域与第一套筒 21的 中空区域相连通; 解锁件 242上设有第五螺纹部 243且解锁件 242可转动设置在第 二套筒 241内; 第二连接件 23上设有与第五螺纹部 243相适配的第六螺纹部 18。 第一螺纹部 15与第五螺纹部 243都具有较大的螺纹升角, 优选螺纹升角的范围为 25°-65°, 本实施例的第一螺纹部 15和第五螺纹部 243的螺纹升角分别为 45°, 就 是说解锁件 242与第二连接件 23之间也为螺旋传动。
[0048] 本实施例中, 解锁件 242为一圆柱状结构, 解锁件 242具有沿其轴线设置的解锁 孔, 所述解锁孔为一字型幵槽、 十字型幵槽、 三角形幵槽、 正六角形幵槽或螺 孔。 工作人员可以使用工具利用解锁孔转动解锁件 242实现电动锁扣的解锁。 当 然, 解锁孔还可以是其他非标形状的幵槽, 以防他人恶意解锁电动锁扣。 在其 他实施例中, 解锁件 242可以不设置解锁孔, 在解锁件 242上设置一个转动部也 是可以的, 需要手动解锁吋, 旋转转动部也能很方便的将电动锁扣解锁以拆卸 显示屏箱体。 在安装副锁扣的显示屏箱体上幵设有与所述解锁孔或所述转动部 对应的豁口, 转动部从所述豁口伸出或者, 工作人员能将工具从所述豁口伸进 以解锁电动锁扣。
[0049] 如图 5和图 6所示, 进一步的, 所述副锁扣 2还包括肋板 25, 所述肋板 25设于第 一套筒 21的周壁上, 肋板 25上设有安装孔。 本实施例中, 设有两个肋板 25, 一 个肋板 25设于与第二套筒 241相对的一侧, 另一个肋板 25套设在第二套筒 241上 并与第一套筒 21连接。
[0050]
[0051] 综上所述, 本发明提供的电动锁扣及采用该锁扣的显示屏, 结构简单、 体积小 巧; 副锁扣中设有弹性件, 有利于降低电动锁扣的装配精度要求, 为用户带来 巨大便利; 电动控制主、 副锁扣的连接、 分离, 操作简便; 设有减速齿轮组, 有利于第一连接件与第二连接件的连接; 设置手动解锁组件, 在停电或电机损 坏的情况下, 也能够进行人工旋转解锁, 大大提高了电动锁扣的可操作性。

Claims

权利要求书
[权利要求 1] 一种电动锁扣, 其特征在于: 包括主锁扣和副锁扣, 所述主锁扣包括 壳体, 壳体内设有驱动组件和第一连接件; 驱动组件包括驱动件和可 转动设置在壳体上的转动轴, 转动轴的一端设有第一螺纹部; 第一连 接件的一端设有与第一螺纹部相适配的第二螺纹部, 另一端设有第三 螺纹部; 所述副锁扣包括第一套筒、 弹性件和可转动设于第一套筒内 的第二连接件, 弹性件设于第一套筒内且其一端抵持第二连接件, 所 述第二连接件上设有与第三螺纹部相适配的第四螺纹部, 第二连接件 沿第一套筒的轴线可移动设置; 驱动件通过转动轴驱动第一连接件沿 转动轴的轴向移动, 在第一连接件抵触到第二连接件之后转动轴的转 动带动第一连接件转动。
[权利要求 2] 根据权利要求 1所述的电动锁扣, 其特征在于: 所述主锁扣还包括设 于壳体内的减速齿轮组, 驱动件通过所述减速齿轮组驱动转动轴转动
[权利要求 3] 根据权利要求 2所述的电动锁扣, 其特征在于: 所述减速齿轮组包括 第一齿轮、 第二齿轮、 第三齿轮和第四齿轮, 第二齿轮包括相连的第 一齿部和第二齿部, 第三齿轮包括相连第三齿部和第四齿部; 第一齿 轮套设在驱动件的输出轴上, 第二齿轮和第三齿轮分别可转动设置在 壳体内, 第四齿轮套设在转动轴上; 第一齿部的外径分别大于第二齿 部和第一齿轮的外径, 第三齿部的外径分别大于第二齿部和第四齿部 的外径, 第四齿轮的外径大于第四齿部的外径; 第一齿轮与第一齿部 啮合, 第二齿部与第三齿部啮合, 第四齿部与第四齿轮啮合。
[权利要求 4] 根据权利要求 1所述的电动锁扣, 其特征在于: 所述副锁扣还包括手 动解锁组件, 所述手动解锁组件包括第二套筒和解锁件, 第二套筒设 于第一套筒的周壁上且与第一套筒垂直; 在第一套筒与第二套筒的连 接处, 第二套筒的中空区域与第一套筒的中空区域相连通; 解锁件上 设有第五螺纹部且解锁件可转动设置在第二套筒内; 第二连接件上设 有与第五螺纹部相适配的第六螺纹部。
[权利要求 5] 根据权利要求 4所述的电动锁扣, 其特征在于: 解锁件具有沿其轴线 设置的解锁孔。
[权利要求 6] 根据权利要求 5所述的电动锁扣, 其特征在于: 解锁孔为一字型幵槽
、 十字型幵槽、 三角形幵槽、 正六角形幵槽或螺孔。
[权利要求 7] 根据权利要求 1所述的电动锁扣, 其特征在于: 所述第一套筒远离第 二连接件的一端设有封盖, 所述弹性件的另一端抵持所述封盖。
[权利要求 8] 根据权利要求 1所述的电动锁扣, 其特征在于: 所述副锁扣还包括肋 板, 所述肋板设于第一套筒的周壁上, 肋板上设有安装孔。
[权利要求 9] 一种显示屏, 其特征在于: 相邻显示屏箱体之间采用如权利要求 1-8 中任意一项所述的电动锁扣连接。
[权利要求 10] 根据权利要求 9所述的显示屏, 其特征在于: 主锁扣设于第一显示屏 箱体上, 副锁扣设于第二显示屏箱体上, 第一显示屏箱体和第二显示 屏箱体上分别设有供第一连接件穿过的通孔, 第二连接件与所述通孔 对齐。
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