WO2023040316A1 - 一种弧形锁及拼接屏 - Google Patents

一种弧形锁及拼接屏 Download PDF

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Publication number
WO2023040316A1
WO2023040316A1 PCT/CN2022/093516 CN2022093516W WO2023040316A1 WO 2023040316 A1 WO2023040316 A1 WO 2023040316A1 CN 2022093516 W CN2022093516 W CN 2022093516W WO 2023040316 A1 WO2023040316 A1 WO 2023040316A1
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WO
WIPO (PCT)
Prior art keywords
sliding mechanism
sliding
locking
arc
bar
Prior art date
Application number
PCT/CN2022/093516
Other languages
English (en)
French (fr)
Inventor
张现峰
张永军
李国强
张海军
Original Assignee
深圳市光祥科技股份有限公司
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 深圳市光祥科技股份有限公司 filed Critical 深圳市光祥科技股份有限公司
Priority to EP22731979.5A priority Critical patent/EP4177873A4/en
Priority to US17/789,782 priority patent/US20240196547A1/en
Publication of WO2023040316A1 publication Critical patent/WO2023040316A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • 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
    • G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0021—Side-by-side or stacked arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F16B5/0216—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the position of the plates to be connected being adjustable
    • F16B5/0233—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the position of the plates to be connected being adjustable allowing for adjustment perpendicular to the plane of the plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • 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
    • G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
    • 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
    • G09F9/33—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 being semiconductor devices, e.g. diodes

Definitions

  • the invention belongs to the technical field of LED display screens, and in particular relates to an arc lock and a splicing screen.
  • the existing method is generally to splice a plurality of small LED displays to form a large-screen LED display.
  • Each small LED display includes a frame and is installed on one side of the frame. When assembling the LED display module, just splice the frames together.
  • Angle splicing also known as arc splicing
  • angle splicing is basically splicing through angle locks or arc locks, an arc lock slot is set in the cabinet, and the arc lock is placed in the arc lock slot for two Arc connection between boxes.
  • the present invention provides an arc lock and a splicing screen.
  • the present invention provides an arc lock, comprising an angle control mechanism and a locking mechanism
  • the locking mechanism includes a second installation structure for installing another display module
  • the first installation structure and the second installation structure are arranged adjacently, and the first sliding mechanism and the second sliding mechanism extend telescopically from the first installation structure and abut against the second installation structure , the positioning mechanism is used to position the length of the first sliding mechanism and the second sliding mechanism protruding from the first installation structure;
  • the first installation structure and the second installation structure are mutually locked or unlocked by setting a locking bar and a limiting mechanism, and the first sliding mechanism and the second sliding mechanism are located on both sides of the locking bar.
  • the first mounting structure includes a mounting base and a housing, the housing is fixedly connected to the mounting base, the mounting base has a first mounting surface and a first contact surface, and the first mounting surface is used for A display module is installed, a first through hole and a second through hole are opened on the first contact surface, the first sliding mechanism can pass through the first through hole, and the second sliding mechanism can pass through the the second through hole;
  • the second installation structure includes a base, the base has a second installation surface and a second contact surface, the second installation surface is used for installing another display module, the lock bar is slidably connected to the base, and the The lock bar can be interlocked with the limiting mechanism, so that the first sliding mechanism and the second sliding mechanism abut against the second contact surface, so as to lock the angle control mechanism with the locking mechanism.
  • the mechanism is locked and fixed.
  • the second sliding mechanism includes a second upper end cover, a second slide bar and a second lower end cover, the second upper end cover and the second lower end cover are respectively fixed at the ends of the second slide bar, and the second a sliding mechanism is movably arranged in the housing;
  • the positioning mechanism is used to drive the first sliding bar and the second sliding bar to move relative to the mounting seat, so that the end of the first sliding bar is away from or close to the first contact surface and the The end of the second sliding rod is away from or close to the first contact surface, so as to adjust the included angle between the first installation surface and the second installation surface.
  • the first sliding mechanism further includes a first spring
  • the second sliding mechanism further includes a second spring
  • the first spring is arranged between the first contact surface of the mounting seat and the first upper end. Between the cover and/or the first lower end cover, the first spring is used to connect the first sliding mechanism with the upper cam without gap;
  • the second spring is arranged between the first contact surface of the mounting seat and the second upper end cover and/or the second lower end cover, and the second spring is used to connect the second sliding mechanism with the The lower cam is connected without play.
  • the limiting mechanism includes a limiting block, an arc-shaped adjusting block and a third spring, the arc-shaped adjusting block is arranged between the housing and the mounting base, and the limiting block is arranged on the Between the housing and the arc-shaped adjustment block, the third spring is arranged between the mounting seat and the limit block, and the third spring provides the limit block with a direction toward the lock bar. The driving force of the movement, so that the limiting block locks the locking rod.
  • the locking mechanism further includes a fixing piece, the locking bar has a hollowed out part passing through the locking bar, the length of the hollowed out part is greater than the width of the fixing piece, and the fixing piece passes through
  • the hollow part and the locking bar are slidably connected to the base, the base has a third through hole for the locking bar to pass through, and the locking bar can move back and forth relative to the base.
  • the locking mechanism further includes a handle and a fourth spring, one end of the locking rod is provided with grooves distributed at intervals, the other end of the locking rod is provided with threads, and the handle and the locking rod
  • the fourth spring is sleeved on the lock rod and arranged between the handle and the base, and a second through hole is provided between the first through hole and the second through hole.
  • Four through holes, the fourth through hole is used for the locking rod to pass through the angle control mechanism.
  • the angle control mechanism further includes a limit block control piece, the limit block control piece is an L-shaped structure, the limit block control piece is passed through the housing and is located in the limit block above.
  • the present invention also provides a splicing screen, comprising at least two LED display modules and the above-mentioned arc lock, the angle control mechanism is connected with one LED display module, and the locking mechanism is connected with another Adjacent LED display modules are connected, and the angle mechanism is fixedly connected with the locking mechanism.
  • the arc lock provided by the present invention controls the length of the first sliding mechanism and the second sliding mechanism protruding from the first installation structure through the positioning mechanism, thereby making both sides of the lock bar
  • the first sliding mechanism and the second sliding mechanism form a length difference, and then the ends of the first sliding mechanism and the second sliding mechanism can be abutted against the second installation structure through the cooperation of the lock bar and the limit mechanism, so that The angles of the first installation structure and the second installation structure are adjusted, thereby realizing the angle adjustment between the display modules.
  • the arc lock has a simple structure and is easy to use and operate.
  • the positioning mechanism can accurately change the moving distance of the first sliding mechanism and the second sliding mechanism, thereby precisely controlling the arc of the splicing screen.
  • the locking lever and the limit mechanism can lock each other or Unlocking facilitates the installation and removal of the display module, improving the installation quality and efficiency of the splicing screen.
  • Fig. 1 is a schematic structural diagram of an arc lock provided by an embodiment of the present invention
  • Fig. 2 is a top view of the arc lock in Fig. 1;
  • Fig. 3 is a sectional view marked as -7.5° along the angle B-B line in Fig. 2;
  • Fig. 4 is the cross-sectional view marked as 0 ° along the angle of B-B line in Fig. 2;
  • Fig. 5 is a 7.5° cross-sectional view along the B-B line in Fig. 2;
  • Fig. 6 is a schematic structural diagram of an angle control mechanism provided by an embodiment of the present invention.
  • Fig. 7 is a schematic structural diagram of a locking mechanism provided by an embodiment of the present invention.
  • Fig. 8 is a top view of the locking mechanism provided by an embodiment of the present invention.
  • the angle control mechanism 1 includes a first mounting structure 11 and a first sliding mechanism 12, a second sliding mechanism 13 and a positioning mechanism 14 arranged on the first mounting structure 11, and the first mounting structure 11 is used for mounting a display module;
  • the locking mechanism 2 includes a second installation structure 21, and the second installation structure 21 is used to install another display module;
  • the first installation structure 11 and the second installation structure 21 are arranged adjacently, and the first sliding mechanism 12 and the second sliding mechanism 13 extend telescopically out of the first installation structure 11 and abut against the first installation structure 11
  • the second mounting structure 21, the positioning mechanism 14 is used to position the length of the first sliding mechanism 12 and the second sliding mechanism 13 extending out of the first mounting structure 11;
  • the arc lock provided by the present invention controls the length of the first sliding mechanism 12 and the second sliding mechanism 13 extending out of the first installation structure 11 through the positioning mechanism 14, thereby making the first sliding mechanism 12 and the second sliding mechanism on both sides of the lock bar 22
  • the two sliding mechanisms 13 form a length difference, and then the ends of the first sliding mechanism 12 and the second sliding mechanism 13 can be abutted against the second mounting structure 21 through the cooperation of the lock bar 22 and the limit mechanism 15, thereby adjusting
  • the angles between the first installation structure 11 and the second installation structure 21 are used to adjust the angle between the display modules.
  • the arc lock has a simple structure and is easy to use and operate.
  • the positioning mechanism 14 can accurately change the moving distance of the first sliding mechanism 12 and the second sliding mechanism 13, thereby precisely controlling the arc of the splicing screen.
  • the locking rod 22 and the limit mechanism 15 They can be locked or unlocked to facilitate the installation and disassembly of the display module, and improve the installation quality and efficiency of the splicing screen.
  • the first mounting structure 11 includes a mounting base 111 and a housing 112, the mounting base 111 is fixedly connected to the housing 112, and the mounting base 111 has a first mounting surface 1111 and a first contact surface 1112, the first installation surface 1111 is used to install a display module, the first contact surface 1112 is provided with a first through hole 1113 and a second through hole 1114, the first sliding mechanism 12 can pass through the The first through hole 1113, the second sliding mechanism 13 can pass through the second through hole 1114;
  • the second installation structure 21 includes a base 211, the base 211 has a second installation surface 2111 and a second contact surface 2112, the second contact surface 2112 is used to install another display module, the lock bar 22 is connected to The base 211 is slidably connected, and the locking bar 22 can be interlocked with the limiting mechanism 15, so that the first sliding mechanism 12 and the second sliding mechanism 13 abut against the second contact surface 2112 , so as to lock and fix the angle control mechanism 1 and the locking mechanism 2 .
  • the positioning mechanism 14 includes a knob 141, an upper cam 142, a rotating shaft 143 and a lower cam 144, one end of the rotating shaft 143 is fixedly connected with the upper cam 142 and the knob 141, the The rotating shaft 143 is passed through the housing 112, and the other end of the rotating shaft 143 is fixedly connected with the lower cam 144 and rotatably connected with the mounting base 111.
  • the upper cam 142 and the lower cam 144 are Fan-shaped structure, the outer circumference of the upper cam 142 and the lower cam 144 has irregular grooves, the end of the first sliding mechanism 12 abuts against the outer circumference of the upper cam 142, the second sliding mechanism 13 The end of the lower cam abuts against the outer circumference of the lower cam 144 , the knob 141 is provided with an angle indicator 1411 , and the outer surface of the housing 112 is provided with an angle indicator point 1121 corresponding to the position of the knob 141 .
  • knob 141 When the knob 141 rotates under the action of external force, it drives the upper cam 142, the rotating shaft 143 and the lower cam 144 to rotate, so that the first sliding mechanism 12 and the second sliding mechanism 13 are relatively opposite to the first sliding mechanism 141.
  • a contact surface 1112 moves different distances.
  • the upper cam 142 is slidably connected to the end of the first sliding mechanism 12, and the outer circumference of the upper cam 142 has irregular grooves, and the first sliding mechanism 12 can rotate relative to the upper cam 142 when the knob 141 rotates.
  • the position where the first sliding mechanism 12 is connected to the outer periphery of the upper cam 142 is different. Since the outer edge of the upper cam 142 is an irregular groove structure, the different points on the outer periphery of the upper cam 142 are different from those of the upper cam 142. The distances between the rotating shafts 143 are different.
  • the connection position between the first sliding mechanism 12 and the outer circumference of the upper cam 142 can be changed, and then the distance between the end of the first sliding mechanism 12 and the rotating shaft 143 can be changed, and finally the The moving distance of the first sliding mechanism 12 makes the first sliding mechanism 12 protrude or retract from the first contact surface 1112 .
  • the rotation of the lower cam 144 can change the moving distance of the second sliding mechanism 13 .
  • the knob 141, the upper cam 142, the rotating shaft 143 and the lower cam 144 are fixedly connected. By turning the knob 141, the upper cam 142, the rotating shaft 143 and the lower cam 144 can be indirectly driven to rotate, ensuring that the upper cam 142 and the lower cam 144 are rotated.
  • the rotation angle of the lower cam 144 is precise, thereby realizing the accurate moving distance of the first sliding mechanism 12 and the second sliding mechanism 13 , thereby realizing the accuracy of the installation angle of the curved LED display screen.
  • the angle mark 1411 and the angle indication point 1121 can visually show the splicing angle of two adjacent LED display screens to the operator, so as to facilitate the adjustment of the curvature of the LED display screens.
  • angle mark 1411 refers to the angle between the first installation surface 1111 and the second installation surface 2111 when the angle control mechanism 1 and the locking mechanism 2 are fixedly connected.
  • the angle mark 1411 can optionally be 7.5°, 5°, 2.5°, 0°, -2.5°, -5°, -7.5°.
  • the included angle between the first installation surface 1111 and the second contact surface 2112 is A, and the positioning mechanism 14 drives the first sliding mechanism 12 and the second sliding mechanism 13 to move different distances, and the size of the included angle A can be changed arbitrarily, so that the The angle between the first installation surface 1111 and the second installation surface 2111 can be adjusted to any angle to meet the installation requirements of splicing screens with different radians.
  • three different included angles A are selected as examples below for illustration.
  • A is 82.5°
  • the angle between the first installation surface 1111 and the second installation surface 2111 is -7.5°
  • the angle indicator 1411 pointed to by the angle indicator point 1121 is -7.5°, that is, the display screens of the two LED units
  • the splicing angle is -7.5°.
  • A is 90°, then the angle between the first installation surface 1111 and the second installation surface 2111 is 0°, and the angle indicator 1411 pointed to by the angle indicator point 1121 is 0°, that is, the splicing of the two LED unit display screens
  • the included angle is 0°, and the LED display is a rectangular screen at this time.
  • A is 97.5°
  • the angle between the first installation surface 1111 and the second installation surface 2111 is 7.5°
  • the angle mark 1411 pointed to by the angle indicator point 1121 is 7.5°, that is, the splicing of the two LED unit display screens
  • the included angle is 7.5°.
  • the first sliding mechanism 12 includes a first upper end cover 121, a first sliding rod 122 and a first lower end cover 123, and the first upper end cover 121 and the first lower end cover 123 are respectively fixed at the end of the first slide bar 122, the first slide mechanism 12 is movably arranged in the housing 112;
  • the second sliding mechanism 13 includes a second upper end cover 131, a second slide bar 132 and a second lower end cover 133, and the second upper end cover 131 and the second lower end cover 133 are respectively fixed on the sides of the second slide bar 132. end, the second sliding mechanism 13 is movably arranged in the housing 112;
  • the positioning mechanism 14 is used to drive the first slide bar 122 and the second slide bar 132 to move relative to the mounting seat 111, so that the end of the first slide bar 122 is far away from or close to the first slide bar 122.
  • the contact surface 1112 and the end of the second slide bar 132 are far away from or close to the first contact surface 1112 to adjust the angle between the first installation surface 1111 and the second installation surface 2111 .
  • first slide bar 122 has a U-shaped structure, and the first slide bar 122 has a fifth through hole for the fixing member to pass through.
  • the first upper end cover 121 and the first lower end cover 123 are respectively Being fixed at the end of the first slide bar 122 can increase the stability of the movement of the first slide bar 122, avoid shaking, prevent the accuracy of arc adjustment from being affected, and reduce the weight of the arc lock at the same time.
  • the shape and size of the first sliding bar 122 and the second sliding bar 132 are the same, which is conducive to accurately controlling the moving distance of the first sliding mechanism 12 and the second sliding mechanism 13, and increasing the reliability of the arc lock. .
  • the limiting mechanism 15 includes a limiting block 151 , an arc-shaped adjusting block 152 and a third spring 153 , and the arc-shaped adjusting block 152 is disposed between the housing 112 and the mounting seat 111 , the limiting block 151 is disposed between the housing 112 and the arc-shaped adjusting block 152, the third spring 153 is disposed between the mounting seat 111 and the limiting block 151, and the first The three springs 153 provide the driving force for the limiting block 151 to move in the direction of the locking bar 22 , so that the limiting block 151 locks the locking bar 22 .
  • the locking mechanism 2 further includes a fixing member 23, and the locking bar 22 has a hollow part 222 that passes through the locking bar 22, and the hollow part 222 The length is greater than the width of the fixing part 23, the fixing part 23 is passed through the hollow part 222 and the locking bar 22 is slidably connected to the base 211, and the base 211 has a 22 passes through a third through hole 2113 , and the locking bar 22 can move back and forth relative to the base 211 .
  • the fixing part 23 is used for slidingly connecting the locking bar 22 with the base 211 to prevent the locking bar 22 from rotating under the action of external force, thereby affecting the locking function of the limiting block 151 and the groove 221, so
  • the hollow part 222 is a rectangular structure, the length of the hollow part 222 is greater than the width of the fixing part 23, so that the locking bar 22 can move forward and backward with the fixing part 23 as the axis, and the fixing part 23 can adopt This field uses fixing parts, which are not particularly limited here, such as screws, pins and the like.
  • the locking mechanism 2 further includes a handle 24 and a fourth spring 25, one end of the locking rod 22 is provided with grooves 221 distributed at intervals, and the other end of the locking rod 22 is provided with threads,
  • the handle 24 is threadedly connected to the lock bar 22,
  • the fourth spring 25 is sleeved on the lock bar 22 and is arranged between the handle 24 and the base 211, and
  • a fourth through hole 1115 is opened between the hole 1113 and the second through hole 1114 , and the fourth through hole 1115 is used for the locking rod 22 to pass through the angle control mechanism 1 .
  • the locking lever 22 moves toward the direction of the angle control mechanism 1, and then drives the second contact surface 2112 of the locking mechanism 2 to approach the angle control mechanism 1.
  • the angle control mechanism 1 and the locking mechanism 2 are fixedly connected and locked with each other to realize the installation of the splicing screen.
  • the limiting block control piece 16 moves downward, and at this time, the limiting block control piece 16 is embedded in the limiting block 151 and between the locking rods 22, so that the protrusion 1511 pops out from the groove 221, and the locking effect of the limiting block 151 on the locking rod 22 can be released, so that the locking rod 22 can Pull it out from the angle control mechanism 1.
  • the locking lever 22 moves away from the angle control mechanism 1, and then drives the second contact surface 2112 of the locking mechanism 2 away from the angle control mechanism 1.
  • the ends of the first sliding mechanism 12 and the second sliding mechanism 13 press down the limit block control piece 17, and pull the locking bar 22 out of the fourth through hole 1115, thereby contacting the angle control mechanism 1 with the Temporary fixation of the locking mechanism 2 described above.
  • the embodiment of the present invention also provides a splicing screen, including at least two LED display modules and the above-mentioned arc lock, the angle control mechanism is connected with an LED display module, and the locking The mechanism is connected with another adjacent LED display module, and the angle mechanism is fixedly connected with the locking mechanism.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种弧形锁，包括角度控制机构和锁紧机构；角度控制机构包括第一安装结构、第一滑动机构、第二滑动机构和定位机构，第一安装结构用于安装一显示模组；锁紧机构包括第二安装结构，第二安装结构用于安装另一显示模组，第一滑动机构和第二滑动机构可伸缩地伸出第一安装结构并抵接第二安装结构，定位机构用于定位第一滑动机构和第二滑动机构伸出第一安装结构的长度，第一滑动机构和第二滑动机构位于锁杆的两侧。弧形锁通过第一滑动机构和第二滑动机构在锁杆两侧的长度差调整第一安装结构和第二安装结构的角度，从而调整显示模组之间的角度，结构简单、可精确调节弧度。

Description

一种弧形锁及拼接屏 技术领域
本发明属于LED显示屏技术领域，具体涉及一种弧形锁及拼接屏。
背景技术
随着LED显示屏技术的发展，其应用领域越来越广泛，且LED显示屏行业发展的趋势为高密度、多造型、安装方便快捷，高密度则表示需要大屏幕，多造型则表示整个LED显示屏的形状会根据需要而多种多样。因为大屏幕LED显示屏不好搬运，所以现有方法一般是将多个小LED显示屏拼接起来组成大屏幕LED显示屏，每一小LED显示屏均包括一框架以及安装于所述框架一侧的LED显示模组，拼装的时候，将框架拼接到一起即可。现有技术中，拼接后的多个框架绝大部分都在同一平面上，即拼接成平面；然而在特定的应用场景下，例如，LED显示屏的整体呈现效果为弧面时，就要考虑进行角度拼接(也称为弧形拼接)，角度拼接基本上是通过角度锁或弧形锁进行拼接，在箱体开设弧形锁槽，将弧形锁放置弧形锁槽中，进行两个箱体之间的弧形连接。
现有的弧形锁大多采用弧形导槽结构，通过调节块在弧形轨道内调整到需要的角度后锁紧或者用定位弹珠定位，体积较大，且往往受单一角度调节的限制，不能自适应调节角度。也存在一些具有多角度调节的弧形锁，但该弧形锁没有精确限制角度的机构，从而造成角度卡接偏差较大，从而影响整体拼装和观看效果。
发明内容
针对现有弧形锁结构复杂、难以精确调节角度的问题，本发明提供了一种弧形锁及拼接屏。
本发明解决上述技术问题所采用的技术方案如下：
一方面，本发明提供了一种弧形锁，包括角度控制机构和锁紧机构；
所述角度控制机构包括第一安装结构以及设置于所述第一安装结构上的第一滑动机构、第二滑动机构和定位机构，所述第一安装结构用于安装一显示模组；
所述锁紧机构包括第二安装结构，所述第二安装结构用于安装另一显示模组；
所述第一安装结构和所述第二安装结构相邻设置，所述第一滑动机构和所述第二滑动机构可伸缩地伸出所述第一安装结构并抵接所述第二安装结构，所述定位机构用于定位所述第一滑动机构和所述第二滑动机构伸出所述第一安装结构的长度；
所述第一安装结构和所述第二安装结构通过设置锁杆和限位机构相互锁止或解锁，所述第一滑动机构和所述第二滑动机构位于所述锁杆的两侧。
可选的，所述第一安装结构包括安装座和外壳，所述外壳与所述安装座固定连接，所述安装座具有第一安装面和第一接触面，所述第一安装面用于安装一显示模组，所述第一接触面上开设有第一通孔和第二通孔，所述第一滑动机构可穿设所述第一通孔，所述第二滑动机构可穿设所述第二通孔；
所述第二安装结构包括底座，所述底座具有第二安装面和第二接触面，所述第二安装面用于安装另一显示模组，所述锁杆与所述底座滑动连接，所述锁杆可与所述限位机构互相锁止，使得所述第一滑动机构以及所述第二滑动机构抵接于所述第二接触面，以将所述角度控制机构与所述锁紧机构锁紧固定。
可选的，所述定位机构包括旋钮、上凸轮、旋转轴和下凸轮，所述旋转轴的一端与所述上凸轮和所述旋钮固定连接，所述旋转轴穿设在所述外壳内，所述旋转轴的另一端与所述下凸轮固定连接并与所述安装座转动连接，所述上凸轮和所述下凸轮为扇形结构，所述上凸轮与所述下凸轮的外周具有不规则凹槽，所述第一滑动机构的端部抵接于所述上凸轮的外周，所述第二滑动机构的端部抵接于所述下凸轮的外周，所述旋钮上设置有角度标识，所述外壳的外表面对应所述旋钮的位置设置有角度指示点。
可选的，所述第一滑动机构包括第一上端盖、第一滑杆和第一下端盖，所述第一上端盖和所述第一下端盖分别固定在所述第一滑杆的端部，所述第一滑动机构可移动地设置在所述外壳内；
所述第二滑动机构包括第二上端盖、第二滑杆和第二下端盖，所述第二上端盖和第二下端盖分别固定在所述第二滑杆的端部，所述第二滑动机构可移动地设置在所述外壳内；
所述定位机构用于驱动所述第一滑杆和所述第二滑杆相对于所述安装座移动，使得所述第一滑杆的端部远离或者靠近所述第一接触面及所述第二滑杆的 端部远离或者靠近所述第一接触面，以调节所述第一安装面与所述第二安装面的夹角。
可选的，所述第一滑动机构还包括第一弹簧，所述第二滑动机构还包括第二弹簧，所述第一弹簧设置在所述安装座的第一接触面与所述第一上端盖和/或第一下端盖之间，所述第一弹簧用于将所述第一滑动机构与所述上凸轮无间隙连接；
所述第二弹簧设置在所述安装座的第一接触面与所述第二上端盖和/或第二下端盖之间，所述第二弹簧用于将所述第二滑动机构与所述下凸轮无间隙连接。
可选的，所述限位机构包括限位块、弧形调节块和第三弹簧，所述弧形调节块设置于所述外壳与所述安装座之间，所述限位块设置于所述外壳与所述弧形调节块之间，所述第三弹簧设置于所述安装座与所述限位块之间，所述第三弹簧为所述限位块提供向所述锁杆方向运动的驱动力，以使所述限位块锁紧所述锁杆。
可选的，所述锁紧机构还包括固定件，所述锁杆上具有贯穿所述锁杆的镂空部，所述镂空部的长度大于所述固定件的宽度，所述固定件穿设于所述镂空部并将所述锁杆滑动连接在所述底座上，所述底座上具有供所述锁杆穿设的第三通孔，所述锁杆可以相对所述底座前后移动。
可选的，所述锁紧机构还包括把手和第四弹簧，所述锁杆的一端设置有间隔分布的凹槽，所述锁杆的另一端设置有螺纹，所述把手与所述锁杆螺纹转动连接，所述第四弹簧套设在所述锁杆上并设置于所述把手与所述底座之间，在所述第一通孔和所述第二通孔之间还开设有第四通孔，所述第四通孔用于所述锁杆穿入所述角度控制机构。
可选的，所述角度控制机构还包括限位块控制片，所述限位块控制片为L型结构，所述限位块控制片穿设于所述外壳内并位于所述限位块上方。
另一方面，本发明还提供了一种拼接屏，包括至少两个LED显示模组和上述的弧形锁，所述角度控制机构与一LED显示模组连接，所述锁紧机构与另一相邻的LED显示模组连接，所述角度机构与所述锁紧机构固定连接。
本发明的有益效果：与现有技术相比，本发明提供的弧形锁，通过定位机构控制第一滑动机构和第二滑动机构伸出第一安装结构的长度，由此使得锁杆两侧的第一滑动机构和第二滑动机构形成长度差，再通过锁杆和限位机构的配合使用即可将第一滑动机构和第二滑动机构的端部抵接在第二安装结构上，从 而调整第一安装结构和第二安装结构的角度，进而实现显示模组之间的角度调整。所述弧形锁结构简单，使用起来操作简单，定位机构可以精确改变第一滑动机构和第二滑动机构移动的距离，从而精确控制拼接屏的弧度，锁杆和限位机构可以互相锁止或解锁，方便显示模组的安装和拆卸，提高拼接屏的安装质量和效率。
附图说明
图1是本发明一实施例提供的弧形锁结构示意图；
图2是图1中弧形锁的俯视图；
图3是图2中沿B-B线的角度标识为-7.5°剖视图；
图4是图2中沿B-B线的角度标识为0°剖视图；
图5是图2中沿B-B线的角度标识为7.5°剖视图；
图6是本发明一实施例提供的角度控制机构的结构示意图；
图7是本发明一实施例提供的锁紧机构的结构示意图；
图8是本发明一实施例提供的锁紧机构的俯视图。
说明书附图中的附图标记如下：
1、角度控制机构；11、第一安装结构；111、安装座；1111、第一安装面；1112、第一接触面；1113、第一通孔；1114、第二通孔；1115、第四通孔；112、外壳；1121、角度指示点；12、第一滑动机构；121、第一上端盖；122、第一滑杆；123、第一下端盖；124、第一弹簧；13、第二滑动机构；131、第二上端盖；132、第二滑杆；133、第二下端盖；134、第二弹簧；14、定位机构；141、旋钮；1411、角度标识；142、上凸轮；143、旋转轴；144、下凸轮；15、限位机构；151、限位块；1511、凸起部；152、弧形调节块；153、第三弹簧；16、限位块控制片；2、锁紧机构；21、第二安装结构；211、底座；2111、第二安装面；2112、第二接触面；2113、第三通孔；22、锁杆；221、凹槽；222、镂空部；23、固定件；24、把手；25、第四弹簧。
具体实施方式
为了使本发明所解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明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发明，并不用于限定本发明。
需要说明，本发明实施例中所有方向性指示(诸如下方、前后……)仅用于解释在某一特定姿态(如附图所示)下各结构之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本发明中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。
请参照图1-图8，本发明实施例提供了一种弧形锁，包括角度控制机构1和锁紧机构2；
所述角度控制机构1包括第一安装结构11以及设置于所述第一安装结构11上的第一滑动机构12、第二滑动机构13和定位机构14，所述第一安装结构11用于安装一显示模组；
所述锁紧机构2包括第二安装结构21，所述第二安装结构21用于安装另一显示模组；
所述第一安装结构11和所述第二安装结构21相邻设置，所述第一滑动机构12和所述第二滑动机构13可伸缩地伸出所述第一安装结构11并抵接所述第二安装结构21，所述定位机构14用于定位所述第一滑动机构12和所述第二滑动机构13伸出所述第一安装结构11的长度；
所述第一安装结构11和所述第二安装结构21通过设置锁杆22和限位机构15相互锁止或解锁，所述第一滑动机构12和所述第二滑动机构13位于所述锁杆22的两侧。
本发明提供的弧形锁，通过定位机构14控制第一滑动机构12和第二滑动机构13伸出第一安装结构11的长度，由此使得锁杆22两侧的第一滑动机构12和第二滑动机构13形成长度差，再通过锁杆22和限位机构15的配合使用即可将第一滑动机构12和第二滑动机构13的端部抵接在第二安装结构21上，从而调整第一安装结构11和第二安装结构21的角度，从而调整显示模组之间的角度。所述弧形锁结构简单，使用起来操作简单，定位机构14可以精确改变第一滑动机构12和第二滑动机构13移动的距离，从而精确控制拼接屏的弧度，锁杆22和限位机构15可以互相锁止或解锁，方便显示模组的安装和拆卸，提高拼接屏的安装质量和效率。
在一些实施例中，所述第一安装结构11包括安装座111和外壳112，所述安装座111与所述外壳112固定连接，所述安装座111具有第一安装面1111和第一接触面1112，所述第一安装面1111用于安装一显示模组，所述第一接触面 1112上开设有第一通孔1113和第二通孔1114，所述第一滑动机构12可穿设所述第一通孔1113，所述第二滑动机构13可穿设所述第二通孔1114；
所述第二安装结构21包括底座211，所述底座211具有第二安装面2111和第二接触面2112，所述第二接触面2112用于安装另一显示模组，所述锁杆22与所述底座211滑动连接，所述锁杆22可与所述限位机构15互相锁止，使得所述第一滑动机构12以及所述第二滑动机构13抵接于所述第二接触面2112，以将所述角度控制机构1与所述锁紧机构2锁紧固定。
安装过程中，角度控制机构1的第一安装面1111和锁紧机构2的第二安装面2111分别固定在两个相邻的LED单元显示屏边框上，先通过定位机构14从而驱动第一滑动机构12和第二滑动机构13移动不同的距离，接着将锁紧机构2的锁杆22插入角度控制机构1内，转动锁杆22以调节锁杆22与限位机构15的间隙，使得锁紧机构2的第二接触面2112与第一滑动机构12和第二滑动机构13的端部紧密贴合，此时角度控制机构1与锁紧机构2之间互相锁止，从而将两相邻的LE显示模组临时性固定成所需的角度，拼接成弧形的LED显示屏。
在一些实施例中，所述定位机构14包括旋钮141、上凸轮142、旋转轴143和下凸轮144，所述旋转轴143的一端与所述上凸轮142和所述旋钮141固定连接，所述旋转轴143穿设在所述外壳112内，所述旋转轴143的另一端与所述下凸轮144固定连接并与所述安装座111转动连接，所述上凸轮142和所述下凸轮144为扇形结构，所述上凸轮142与所述下凸轮144的外周具有不规则凹槽，所述第一滑动机构12的端部抵接于所述上凸轮142的外周，所述第二滑动机构13的端部抵接于所述下凸轮144的外周，所述旋钮141上设置有角度标识1411，所述外壳112的外表面对应所述旋钮141的位置设置有角度指示点1121。
所述旋钮141在外力作用下转动时，带动所述上凸轮142、所述旋转轴143和所述下凸轮144转动，以使所述第一滑动机构12和第二滑动机构13相对所述第一接触面1112移动不同的距离。
所述上凸轮142与所述第一滑动机构12的端部滑动连接，所述上凸轮142的外周具有不规则凹槽，所述第一滑动机构12在旋钮141转动时可以相对上凸轮142的外周发生滑动，转动的角度不同时，第一滑动机构12与上凸轮142外周连接的位置不同，由于上凸轮142的外边缘为不规则凹槽结构，因此上凸轮142外周上不同的点与所述旋转轴143的距离不同。通过改变旋钮141转动的角度，即可改变第一滑动机构12与上凸轮142外周的连接位置，进而改变所述第 一滑动机构12的端部与所述旋转轴143的距离，最后改变所述第一滑动机构12移动的距离，使得第一滑动机构12伸出或者缩回第一接触面1112，相同的原理，所述下凸轮144的转动可以改变所述第二滑动机构13移动的距离。通过合理设计上凸轮142和下凸轮144的大小与形状，即可实现第一滑动机构12相对于第一接触面1112移动的距离和第二滑动机构13相对于第一接触面1112移动的距离不同，从而能够调节第一安装结构11和第二安装结构21的角度，从而调整显示模组之间的角度，提高了LED显示屏弧度调节的便捷性和精准性。
所述旋钮141、上凸轮142、旋转轴143以及下凸轮144之间为固定连接，通过转动旋钮141，即可间接带动上凸轮142、旋转轴143以及下凸轮144转动，保证了上凸轮142和下凸轮144转动的角度精确，进而实现第一滑动机构12和第二滑动机构13移动的距离精确，从而实现弧形LED显示屏安装角度的准确性。
通过角度标识1411和角度指示点1121可向操作者直观展示两相邻LED显示屏的拼接角度，便于调节LED显示屏的弧度。
进一步的，所述角度标识1411指的是角度控制机构1与锁紧机构2固定连接时，第一安装面1111与第二安装面2111之间的夹角，所述角度标识1411可选的有7.5°、5°、2.5°、0°、-2.5°、-5°、-7.5°。
第一安装面1111与第二接触面2112的夹角为A，通过定位机构14驱动第一滑动机构12和第二滑动机构13移动不同的距离，可以任意改变夹角A的大小，从而能将第一安装面1111与第二安装面2111的夹角调节至任意角度，满足不同弧度拼接屏的安装需求。为了更清楚的表达，以下选取三个不同的夹角A为例进行阐述。
图3中A为82.5°，则第一安装面1111与第二安装面2111之间的夹角为-7.5°，角度指示点1121指向的角度标识1411为-7.5°，即两LED单元显示屏的拼接夹角为-7.5°。
图4中A为90°，则第一安装面1111与第二安装面2111之间的夹角为0°，角度指示点1121指向的角度标识1411为0°，即两LED单元显示屏的拼接夹角为0°，此时LED显示屏为矩形屏。
图5中A为97.5°，则第一安装面1111与第二安装面2111之间的夹角为7.5°，角度指示点1121指向的角度标识1411为7.5°，即两LED单元显示屏的拼接夹角为7.5°。
在一些实施例中，所述第一滑动机构12包括第一上端盖121、第一滑杆122和第一下端盖123，所述第一上端盖121和所述第一下端盖123分别固定在所述第一滑杆122的端部，所述第一滑动机构12可移动地设置在所述外壳112内；
所述第二滑动机构13包括第二上端盖131、第二滑杆132和第二下端盖133，所述第二上端盖131和第二下端盖133分别固定在所述第二滑杆132的端部，所述第二滑动机构13可移动地设置在所述外壳112内；
所述定位机构14用于驱动所述第一滑杆122和所述第二滑杆132相对于所述安装座111移动，使得所述第一滑杆122的端部远离或者靠近所述第一接触面1112及所述第二滑杆132的端部远离或者靠近所述第一接触面1112，以调节所述第一安装面1111与所述第二安装面2111的夹角。
进一步的，所述第一滑杆122为U型结构，所述第一滑杆122上具有供固定件穿设的第五通孔，所述第一上端盖121和第一下端盖123分别固定在所述第一滑杆122的端部，可以增加第一滑杆122移动的稳定性，避免晃动，防止影响弧度调节的精度，同时减轻弧形锁的重量。
优选的，所述第一滑杆122与所述第二滑杆132的形状、大小相同，有利于准确控制第一滑动机构12和第二滑动机构13移动的距离，增加弧形锁的可靠性。
在一些实施例中，所述第一滑动机构12还包括第一弹簧124，所述第二滑动机构13还包括第二弹簧134，所述第一弹簧124设置在所述安装座111的第一接触面1112与所述第一上端盖121和/或第一下端盖123之间，所述第一弹簧124用于将所述第一滑动机构12与所述上凸轮142无间隙连接；
所述第二弹簧134设置在所述安装座111的第一接触面1112与所述第二上端盖131和/或第二下端盖133之间，所述第二弹簧134用于将所述第二滑动机构13与所述下凸轮144无间隙连接。
所述第一弹簧124为所述第一滑动机构12提供向所述旋转轴143方向的驱动力，以使所述第一滑动机构12与所述上凸轮142无间隙连接，同时实现第一滑动机构12相对于所述安装座111前后移动。类似的，所述第二弹簧134为所述第二滑动机构13提供向所述旋转轴143方向的驱动力，以使所述第二滑动机构13与所述下凸轮144无间隙连接，同时实现第二滑动机构13相对于所述安装座111前后移动。
在一些实施例中，所述限位机构15包括限位块151、弧形调节块152和第 三弹簧153，所述弧形调节块152设置于所述外壳112与所述安装座111之间，所述限位块151设置于所述外壳112与所述弧形调节块152之间，所述第三弹簧153设置于所述安装座111与所述限位块151之间，所述第三弹簧153为所述限位块151提供向所述锁杆22方向运动的驱动力，以使所述限位块151锁紧所述锁杆22。
所述限位块151上具有与锁杆22上的凹槽221相匹配的凸起部1511，所述第三弹簧153为所述限位块151提供向所述锁杆22方向运动的驱动力，在该驱动力下，所述限位块151的凸起部1511紧密嵌入锁杆22上的凹槽221，以使所述角度控制机构1与所述锁紧机构2互相锁止，从而将两个相邻的LED单元显示屏固定连接，结构简单，便于安装和维护。
请参照图7-图8，在一些实施例中，所述锁紧机构2还包括固定件23，所述锁杆22上具有贯穿所述锁杆22的镂空部222，所述镂空部222的长度大于所述固定件23的宽度，所述固定件23穿设于所述镂空部222并将所述锁杆22滑动连接在所述底座211上，所述底座211上具有供所述锁杆22穿设的第三通孔2113，所述锁杆22可以相对所述底座211前后移动。
所述固定件23用于将所述锁杆22与所述底座211滑动连接，防止所述锁杆22在外力作用下发生旋转，从而影响限位块151与凹槽221的锁止功能，所述镂空部222为矩形结构，所述镂空部222的长度大于所述固定件23的宽度，使得所述锁杆22可以以所述固定件23为轴心前后移动，所述固定件23可采用本领域采用固定件，在此不做特别限定，例如螺丝、销钉等。
在一些实施例中，所述锁紧机构2还包括把手24和第四弹簧25，所述锁杆22的一端设置有间隔分布的凹槽221，所述锁杆22的另一端设置有螺纹，所述把手24与所述锁杆22螺纹转动连接，所述第四弹簧25套设在所述锁杆22上并设置于所述把手24与所述底座211之间，在所述第一通孔1113和所述第二通孔1114之间还开设有第四通孔1115，所述第四通孔1115用于所述锁杆22穿入所述角度控制机构1。
所述第四弹簧25的设置，增加了锁紧机构2的稳定性，所述把手24与所述锁杆22通过螺纹连接，可以在外力作用下，通过旋转把手24，调节所述锁杆22与所述限位块151之间的间隙，使得所述锁紧机构2能够与所述角度控制机构1紧密贴合，有利于增加安装的稳定性，提高LED显示屏的拼接效率。
拼接屏安装过程中，把手24在外力作用下逆时针旋转时，所述锁杆22向 靠近所述角度控制机构1的方向运动，进而带动所述锁紧机构2的第二接触面2112靠近所述第一滑动机构12和第二滑动机构13的端部，当所述把手24无法转动时，表示所述角度控制机构1与所述锁紧机构2已经固定连接。
在一些实施例中，所述角度控制机构1还包括限位块控制片16，所述限位块控制片16为L型结构，所述限位块控制片16穿设于所述外壳112内并位于所述限位块16上方。
如上所述，当所述凸起部1511嵌入凹槽221时，所角度控制机构1与所述锁紧机构2固定连接、互相锁止，实现拼接屏的安装，然而当拼接屏拆卸时，则需要将所述角度控制机构1与所述锁紧机构2分离，在外力的作用下，所述限位块控制片16向下运动，此时限位块控制片16嵌入所述限位块151与所述锁杆22之间，以使所述凸起部1511从所述凹槽221上弹出，即可解除所述限位块151对所述锁杆22的锁止作用，使得锁杆22可以从所述角度控制机构1中拔出。
拼接屏拆卸过程中，把手24在外力作用下顺时针旋转时，所述锁杆22向远离所述角度控制机构1的方向运动，进而带动所述锁紧机构2的第二接触面2112远离所述第一滑动机构12和第二滑动机构13的端部，按下限位块控制片17，将所述锁杆22从所述第四通孔1115中拉出，从而接触角度控制机构1与所述锁紧机构2的临时性固定。
另一方面，本发明实施例还提供了一种拼接屏，包括至少两个LED显示模组和如上所述的弧形锁，所述角度控制机构与一LED显示模组连接，所述锁紧机构与另一相邻的LED显示模组连接，所述角度机构与所述锁紧机构固定连接。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种弧形锁，其特征在于，包括角度控制机构和锁紧机构；
    所述角度控制机构包括第一安装结构以及设置于所述第一安装结构上的第一滑动机构、第二滑动机构和定位机构，所述第一安装结构用于安装一显示模组；
    所述锁紧机构包括第二安装结构，所述第二安装结构用于安装另一显示模组；
    所述第一安装结构和所述第二安装结构相邻设置，所述第一滑动机构和所述第二滑动机构可伸缩地伸出所述第一安装结构并抵接所述第二安装结构，所述定位机构用于定位所述第一滑动机构和所述第二滑动机构伸出所述第一安装结构的长度；
    所述第一安装结构和所述第二安装结构通过设置锁杆和限位机构相互锁止或解锁，所述第一滑动机构和所述第二滑动机构位于所述锁杆的两侧。
  2. 根据权利要求1所述的弧形锁，其特征在于，所述第一安装结构包括安装座和外壳，所述外壳与所述安装座固定连接，所述安装座具有第一安装面和第一接触面，所述第一安装面用于安装一显示模组，所述第一接触面上开设有第一通孔和第二通孔，所述第一滑动机构穿设于所述第一通孔，所述第二滑动机构穿设于所述第二通孔；
    所述第二安装结构包括底座，所述底座具有第二安装面和第二接触面，所述第二安装面用于安装另一显示模组，所述锁杆与所述底座滑动连接，所述锁杆可与所述限位机构互相锁止，使得所述第一滑动机构以及所述第二滑动机构抵接于所述第二接触面，以将所述角度控制机构与所述锁紧机构锁紧固定。
  3. 根据权利要求2所述的弧形锁，其特征在于，所述定位机构包括旋钮、上凸轮、旋转轴和下凸轮，所述旋转轴的一端与所述上凸轮和所述旋钮固定连接，所述旋转轴穿设在所述外壳内，所述旋转轴的另一端与所述下凸轮固定连接并与所述安装座转动连接，所述上凸轮和所述下凸轮为扇形结构，所述上凸轮与所述下凸轮的外周具有不规则凹槽，所述第一滑动机构的端部抵接于所述上凸轮的外周，所述第二滑动机构的端部抵接于所述下凸轮的外周，所述旋钮 上设置有角度标识，所述外壳的外表面对应所述旋钮的位置设置有角度指示点。
  4. 根据权利要求3所述的弧形锁，其特征在于，所述第一滑动机构包括第一上端盖、第一滑杆和第一下端盖，所述第一上端盖和所述第一下端盖分别固定在所述第一滑杆的端部，所述第一滑动机构可移动地设置在所述外壳内；
    所述第二滑动机构包括第二上端盖、第二滑杆和第二下端盖，所述第二上端盖和第二下端盖分别固定在所述第二滑杆的端部，所述第二滑动机构可移动地设置在所述外壳内；
    所述定位机构用于驱动所述第一滑杆和所述第二滑杆相对于所述安装座移动，使得所述第一滑杆的端部远离或者靠近所述第一接触面及所述第二滑杆的端部远离或者靠近所述第一接触面，以调节所述第一安装面与所述第二安装面的夹角。
  5. 根据权利要求4所述的弧形锁，其特征在于，所述第一滑动机构还包括第一弹簧，所述第二滑动机构还包括第二弹簧，所述第一弹簧设置在所述安装座的第一接触面与所述第一上端盖和/或第一下端盖之间，所述第一弹簧用于将所述第一滑动机构与所述上凸轮无间隙连接；
    所述第二弹簧设置在所述安装座的第一接触面与所述第二上端盖和/或第二下端盖之间，所述第二弹簧用于将所述第二滑动机构与所述下凸轮无间隙连接。
  6. 根据权利要求2所述的弧形锁，其特征在于，所述限位机构包括限位块、弧形调节块和第三弹簧，所述弧形调节块设置于所述外壳与所述安装座之间，所述限位块设置于所述外壳与所述弧形调节块之间，所述第三弹簧设置于所述安装座与所述限位块之间，所述第三弹簧为所述限位块提供向所述锁杆方向运动的驱动力，以使所述限位块锁紧所述锁杆。
  7. 根据权利要求2所述的弧形锁，其特征在于，所述锁紧机构还包括固定件，所述锁杆上具有贯穿所述锁杆的镂空部，所述镂空部的长度大于所述固定件的宽度，所述固定件穿设于所述镂空部并将所述锁杆滑动连接在所述底座上，所述底座上具有供所述锁杆穿设的第三通孔，所述锁杆可以相对所述底座前后移动。
  8. 根据权利要求2所述的弧形锁，其特征在于，所述锁紧机构还包括把手和第四弹簧，所述锁杆的一端设置有间隔分布的凹槽，所述锁杆的另一端设置有螺纹，所述把手与所述锁杆螺纹转动连接，所述第四弹簧套设在所述锁杆上并设置于所述把手与所述底座之间，在所述第一通孔和所述第二通孔之间还开设有第四通孔，所述第四通孔用于所述锁杆穿入所述角度控制机构。
  9. 根据权利要求6所述的弧形锁，其特征在于，所述角度控制机构还包括限位块控制片，所述限位块控制片为L型结构，所述限位块控制片穿设于所述外壳内并位于所述限位块上方。
  10. 一种拼接屏，其特征在于，包括至少两个LED显示模组和如权利要求1-9任意一项所述的弧形锁，所述角度控制机构与一LED显示模组连接，所述锁紧机构与另一相邻的LED显示模组连接，所述角度机构与所述锁紧机构固定连接。
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