WO2019029074A1 - 一种边框转角结构 - Google Patents

一种边框转角结构 Download PDF

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Publication number
WO2019029074A1
WO2019029074A1 PCT/CN2017/116088 CN2017116088W WO2019029074A1 WO 2019029074 A1 WO2019029074 A1 WO 2019029074A1 CN 2017116088 W CN2017116088 W CN 2017116088W WO 2019029074 A1 WO2019029074 A1 WO 2019029074A1
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Prior art keywords
frame
notch
limiting
plate
bottom plate
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Ceased
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PCT/CN2017/116088
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English (en)
French (fr)
Inventor
豆鑫
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Guangzhou Ruixin Electronics Co Ltd
Guangzhou Shiyuan Electronics Thecnology Co Ltd
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Guangzhou Ruixin Electronics Co Ltd
Guangzhou Shiyuan Electronics Thecnology Co Ltd
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Publication of WO2019029074A1 publication Critical patent/WO2019029074A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
    • F16B12/44—Leg joints; Corner joints

Definitions

  • the invention relates to a product frame structure, in particular to a frame corner structure.
  • the frame corner structure is a very common one, used in various frame structures, such as display frames, photo frames, lining brackets, and the like.
  • the existing frame corner structure usually includes the following types.
  • One is to set a round corner frame between the two frames, and the two frames are respectively fixed to one end of the round corner frame by screws to form a frame corner structure;
  • the screws are fixed together by the silicone pad to form a frame corner structure;
  • the corner brackets are used outside the two frames, and the frame is fixed to the corner fixing frame by screws to form a frame corner structure.
  • the splicing technology is adopted, and in addition to the two frames and the fixing screws, a plurality of other splicing parts are included, and the parts need to be purchased or processed by themselves, the product cost is increased, and the assembly process is complicated. If the shape of the frame changes, these parts are generally no longer applicable, and the parts are poorly versatile.
  • An embodiment of the present invention provides a frame corner structure, including a long first frame and a second frame.
  • One end of the first frame is overlapped with and fixed to one end of the second frame, and one end of the first frame is Forming a stepped recess, the recess includes a back plate, a first side wall and a bottom plate, wherein the back plate is a side wall of the end of the first frame in a longitudinal direction thereof, and the back plate is in a width direction of the first frame
  • the upper thickness is smaller than the overall thickness in the width direction of the first frame, and the bottom plate is the lower wall of the end portion of the first frame in the longitudinal direction thereof, and the thickness of the bottom plate in the height direction of the first frame is smaller than the height direction of the first frame
  • the first sidewall is an inner end wall of the first frame;
  • the second frame is formed with a stepped notch at one end thereof, the notch includes a step panel and a second sidewall, and the step panel is a lower wall of the end of
  • the recess of the first frame and the stepped notch of the second frame are provided with matching limiting members.
  • the limiting component is a limiting slot disposed on the first frame and a limiting plate disposed on the second frame for use with the limiting slot, or the limiting component is disposed at the first a limiting plate on the frame and a limiting slot disposed on the second frame for use with the limiting plate.
  • the limiting plate when the limiting plate is disposed on the first frame, the limiting plate is disposed opposite to the back plate of the notch, protruding from the upper surface of the bottom plate; and the stepped panel of the second frame is notched
  • the limiting groove is formed on the stepped panel at a boundary position of the two side walls.
  • the limiting plate is a partial side wall of the end of the first frame opposite to the back plate in the longitudinal direction thereof.
  • the upper edge of the limiting plate is lower than the upper surface of the frame at the position thereof, or the upper edge of the limiting plate is lower than the upper surface of the first frame at the position thereof, and is in the limiting plate Having an opening with the first side wall, the lower end of the opening is not lower than the upper surface of the bottom plate of the recess of the first frame; the top end of the front surface of the recess back plate is opened along the length of the first frame There is a groove which is closed at both ends and has a depth smaller than a dimension of a front surface of the backing plate in the width direction of the first bezel, the groove being open on the upper surface of the first bezel.
  • a lower surface of the groove on the first frame is flush with an upper edge of the limiting plate.
  • the frame corner structure further includes a screw, a screw through hole and a screw hole, wherein the screw through hole is disposed in the stepped panel of the notch of the second frame, and the screw hole is disposed on the bottom plate of the notch of the first frame Correspondingly, the screw through hole is disposed on the bottom plate of the notch of the first frame, and the screw hole is disposed in the stepped panel of the notch of the second frame.
  • the screw is a flat head screw, and on an outer surface of the frame on which the screw through hole is disposed, a recess corresponding to the screw through hole is provided, and/or the first frame and the second frame have The thickness of the corner portion in which the first frame and the second frame are stacked is the same as the thickness of the first frame or the second frame.
  • first frame and the second frame have a square cross section in the width direction thereof, the stepped recess of the first frame is square, and the upper surface of the bottom plate of the notch of the first frame is perpendicular to the front surface of the back plate
  • the surface of the first side wall is perpendicular to the upper surface of the bottom plate, and the surface of the first side wall is perpendicular to the front surface of the back plate.
  • the frame corner structure of the embodiment of the invention only comprises two frame frames, and has a simple structure and few components.
  • the frame corner corner connecting portion is formed by the notch of the first frame and the notch of the second frame, and the positioning is flexible, convenient and easy to process. Processing low cost.
  • FIG. 1 is an assembled structural view of a bezel corner structure according to an embodiment of the present invention
  • Figure 2a is a side view of the first frame of the bezel structure shown in Figure 1 in the direction A;
  • Figure 2b is a side view of the second frame of the bezel structure shown in Figure 1 in the direction A;
  • FIG. 3 is a top plan view of a bezel structure of an embodiment of the present invention.
  • FIG. 4 is a top plan view of a bezel structure according to another embodiment of the present invention.
  • Fig. 5 is a view showing the assembly structure of a bezel corner structure according to still another embodiment of the present invention.
  • the frame corner structure of the embodiment of the present invention includes an elongated first frame 1 and a second frame 2, and the first frame 1 and the second frame 2 have a square cross section in the width direction thereof.
  • the first frame 1 and the second frame 2 are fixed together by using the flat head screws 3 in the embodiment, and other fixing manners may be used. Bonding.
  • a stepped square recess is formed on one end of the first frame 1 , and the recess includes a back plate 101 , a first sidewall 102 , and a bottom plate 103 . 101.
  • the first side wall 102 and the bottom plate 103 define a recessed space.
  • the back plate 101 is a side wall of the end portion of the first bezel 1 in the longitudinal direction L thereof, and the thickness of the back plate 101 in the width direction W of the first bezel 1 is smaller than the overall thickness in the width direction W of the first bezel 1 .
  • the bottom plate 103 is a lower wall of the end portion of the first bezel 1 in the longitudinal direction L thereof, and the thickness of the bottom plate 103 in the height direction H of the first bezel 1 is smaller than the overall thickness in the height direction H of the first bezel 1 , and the bottom plate 103
  • the upper surface 1031 is perpendicular to the front surface 1011 of the backing plate 101.
  • the first side wall 102 is an inner end wall of the first frame 1 , and the surface of the first side wall 102 is perpendicular to the upper surface 1031 of the bottom plate 103 .
  • the other side of the notch opposite to the first side wall 102 is open without a side. wall.
  • the surface of the first side wall 102 is perpendicular to the front surface 1011 of the backing plate 101, and the surface of the first side wall 102 is perpendicular to the upper surface 1031 of the bottom plate 103.
  • the frame corner structure further includes a limiting plate 104.
  • the limiting plate 104 is disposed opposite to the backing plate 101 and protrudes from the upper surface of the bottom plate 103.
  • the limiting plate 104 is the end of the first frame 1 in the longitudinal direction L thereof.
  • a part of the side wall of the opposite side of the back plate 101, the upper edge of the limiting plate 104 is lower than the upper surface of the first frame 1 at the position where it is located.
  • the limiting plate 104 and the backing plate 101 are disposed in parallel with each other in the above preferred embodiment, the limiting plate may be disposed perpendicular to the backing plate 101 in order to achieve the limit position, or Other shapes of the limiting device are disposed on the back plate 101, the first side wall 102, and the bottom plate 103.
  • the second frame 2 is formed with a stepped notch on one end end thereof, and the notch includes a stepped panel 201 and a second side wall 202, and further includes a limiting groove 203 thereon.
  • the step panel 201 is a lower wall of the end portion of the second bezel 2 in the longitudinal direction thereof, and the thickness of the step panel 201 in the height direction of the second bezel 2 is smaller than the overall thickness in the height direction of the second bezel 2 .
  • the second side wall 202 is an inner end wall of the second frame 2 .
  • the limiting groove 203 is formed on the stepped panel 201 at a position where the stepped panel 201 and the second side wall 202 meet.
  • the end shape of the second bezel 2 having the stepped notch is at least partially matched with the stepped square notch of the first bezel 1 so that the end of the second bezel 2 can be embedded in the stepped shape of the first bezel 1
  • the end of the second frame 2 abuts against the front surface 1011 of the back plate 101 of the recess of the first frame 1, the upper surface 1031 of the bottom plate 103 of the recess of the first frame 1 and the second
  • the inner surface 2011 of the stepped panel 201 of the notch of the frame 2 is joined, and the limiting plate 104 and the limiting groove 203 of the second frame 2 are engaged with each other.
  • the first frame 1 and the second frame 2 are fixed by using the flat head screws 3, and the screw through holes are opened in the notched stepped panel 201 of the second frame 2, and the bottom plate 103 of the notch of the first frame 1 is provided.
  • a screw hole for screwing in is provided at the corresponding position.
  • a recess 31 for accommodating the screw head is provided corresponding to the screw through hole, so that the screw head screwed in does not exceed the outer surface of the frame.
  • the first frame 1 has a notch
  • the end of the second frame 2 having the stepped notch is limited by the back plate 101, the first side wall 102, the bottom plate 103 and the limiting plate 104.
  • the second frame 2 can be accurately positioned to the mounting position of the first frame 1 and the two frames can be fixed.
  • the first frame 1 and the second frame 2 have the same thickness, and the thickness of the corner portion of the first frame 1 and the second frame 2 overlaps with the first frame 1 or the second frame 2 The thickness is the same.
  • the first frame 1 and the second frame 2 have a square shape in the width direction thereof, but may have other shapes.
  • first frame 1 and the second frame 2 form a rotation angle of 90°, but corners of other angles may also be formed, and only the angle between the first frame 1 and the second frame 2 in the longitudinal direction is required.
  • the matching shape of the notch of the first frame 2 and the stepped end of the second frame 2 may be adjusted, as shown in FIG. 4 .
  • the upper surface 1031 of the bottom plate 103 of the recess of the first bezel 1 may also be the front table of the back plate 101.
  • the surface 1011 is not perpendicular to other angles and has ridge lines, which can be used for positioning.
  • the surface of the first side wall 102 may not be perpendicular to the upper surface 1031 of the bottom plate 103, and may have other angles and ridge lines, and may function as a positioning.
  • the back plate 101, the first side wall 102, the bottom plate 103, and the limiting plate 104 of the notch of the first frame 1 and the notched stepped panel 201 and the second side wall 202 of the second frame 2 are provided.
  • the limiting slot 203 is a flat surface, but it can be understood by those skilled in the art that it can also be a curved surface as long as the contact surfaces between the first frame 1 and the second frame 2 cooperate with each other.
  • the upper edge of the limiting plate 104 is lower than the upper surface of the first frame 1 at the position thereof, and is on the limiting plate 104 and the first side.
  • a groove 106 is defined in a longitudinal direction L of the first frame 1 at a top end of the front surface of the back plate 101.
  • the groove 106 is closed at both ends, and the groove 106 has a smaller than the front surface 1011 of the back plate 101 at the first frame 1
  • the depth of the dimension in the width direction W, the groove 106 is open on the upper surface of the first bezel 1, and the lower surface of the groove 106 on the first bezel 1 is preferably flush with the upper edge of the limiting plate 104.
  • the second bezel 2 has a structure that matches the above-described opening 105 and the groove 106 of the first bezel 1.
  • the notch of the end of the second frame 2 can be restrained by the opening 105 of the first frame 1 and further overlapped in the upper edge of the limiting plate 104 of the notch and the groove 106 of the first frame 1 , thereby When the first frame 1 and the second frame 2 are fixed by screws, the fixing portion is not up-warped and the corner structure is more stable.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Joining Of Corner Units Of Frames Or Wings (AREA)

Abstract

一种边框转角结构，包括长条状的第一边框(1)和第二边框(2)，第一边框(1)的一端与第二边框(2)的一端叠置并固定。第一边框(1)的一端端部上形成有台阶状的凹口，第二边框(2)在其一端端部上形成有台阶状缺口，台阶状缺口所在的第二边框(2)的端部至少具有与第一边框(1)的凹口中的夹角相匹配的形状。该边框转角结构仅包括两个边框，结构简单、零部件少，通过第一边框(1)的凹口和第二边框(2)的缺口形成边框转角连接部，进行定位，组装灵活、方便，易于加工，加工成本低。

Description

一种边框转角结构 技术领域
本发明涉及产品框架结构，具体涉及一种边框转角结构。
背景技术
为满足不同客户的多种需求，如美观、实用、轻便等，制造商会提供不同外部形状的产品。在产品结构中，边框转角结构是非常常见的一种，用于各种框架结构中，如显示器边框、相框、内衬支架等。
已有的边框转角结构通常包括以下几种，一种是在两根边框之间设置圆转角架，将两根边框通过螺丝分别固定在圆转角架的一端，构成边框转角结构；此外，是使用螺丝通过硅胶垫将两根边框固定到一起，构成边框转角结构；再有，就是在两根边框外侧使用转角固定架，使用螺丝将边框固定到转角固定架上，构成边框转角结构。
在上述的边框转角结构中，均采用拼接技术，除包括两根边框和固定螺丝外，还包括多个其他拼接零部件，零部件需要外购或自行加工，产品成本提高，组装工序复杂。如果边框形状改变，这些零部件一般不再适用，零部件通用性差。
发明内容
本发明实施例提供一种边框转角结构，包括长条状的第一边框和第二边框，第一边框的一端与第二边框的一端叠置并固定，所述第一边框的一端端部上形成有台阶状的凹口，所述凹口包括背板、第一侧壁和底板，背板为第一边框的端部在其长度方向上的侧壁，背板在第一边框的宽度方向上的厚度小于第一边框的宽度方向上的整体厚度，底板为第一边框的端部在其长度方向上的下壁，底板在第一边框的高度方向上的厚度小于第一边框的高度方向上的整体厚度，第一侧壁为第一边框的内侧端壁；所述第二边框在其一端端部上形成有台阶状缺口，所述缺口包括台阶面板和第二侧壁，台阶面板为第二边框的端部在其长度方向上的下壁，台阶面板在第二边框的高度方向上的厚度小于第二边框的高度方向上的整体厚度，第二侧壁 为第二边框的内侧端壁，凹口的底板的上表面与背板的前表面呈一夹角，和/或第一侧壁的表面与底板的上表面呈一夹角，台阶状缺口所在的第二边框的端部具有与第一边框的凹口中所具有的上述夹角相匹配的形状。
进一步，所述第一边框的凹口与所述第二边框的台阶状缺口上设置有相互配合的限位部件。
进一步，所述限位部件为设置在第一边框上的限位槽和设置在第二边框上与所述限位槽配合使用的限位板，或者，所述限位部件为设置在第一边框上的限位板和设置在第二边框上与所述限位板配合使用的限位槽。
进一步，在第一边框上设置所述限位板时，所述限位板与凹口的背板相对设置，从底板的上表面凸出；在所述第二边框的缺口的台阶面板与第二侧壁交界位置处，在所述台阶面板上形成所述限位槽。
进一步，所述限位板为第一边框的端部在其长度方向上与背板相对侧的部分侧壁。
进一步，所述限位板的上边缘低于其所在位置的边框的上表面，或者，所述限位板的上边缘低于其所在位置的第一边框的上表面，在并在限位板与所述第一侧壁之间具有开口，所述开口的下端不低于第一边框的凹口的底板的上表面；在凹口背板的前表面的顶端沿第一边框的长度方向开设有凹槽，所述凹槽两端封闭，且具有小于背板的前表面在第一边框的宽度方向上的尺寸的深度，所述凹槽在第一边框的上表面敞开。
进一步，所述凹槽在第一边框上的下表面与所述限位板的上边缘平齐。
进一步，所述边框转角结构还包括螺丝、螺丝通孔和螺孔，所述螺丝通孔设置在第二边框的缺口的台阶面板中，所述螺孔设置在第一边框的凹口的底板的对应位置上，或者，所述螺丝通孔设置在第一边框的凹口的底板上，所述螺孔设置在第二边框的缺口的台阶面板中。
进一步，所述螺丝为平头螺丝，并且在设置所述螺丝通孔的边框的外表面上，与螺丝通孔对应的设置有容纳螺丝头的凹部，和/或，第一边框和第二边框具有相同的厚度，第一边框、第二边框叠置的转角部的厚度与第一边框或第二边框的厚度相同。
进一步，第一边框和第二边框在其宽度方向上具有方形截面，所述第一边框的台阶状的凹口呈方形，第一边框的凹口的底板的上表面与背板的前表面垂直，第一侧壁的表面与底板的上表面垂直，第一侧壁的表面与背板的前表面垂直。
本发明实施例的有益效果：
本发明实施例的边框转角结构仅包括两个边框，结构简单、零部件少，通过第一边框的凹口和第二边框的缺口形成边框转角连接部，进行定位，组装灵活、方便，易于加工，加工 成本低。
附图说明
图1是本发明实施例的边框转角结构的装配结构图；
图2a是图1所示的边框转角结构的第一边框沿A方向的侧视图；
图2b是图1所示的边框转角结构的第二边框沿A方向的侧视图；
图3是本发明实施例的边框转角结构的顶视图；
图4是本发明另一实施例的边框转角结构的顶视图；
图5是本发明又一实施例的边框转角结构的装配结构图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白，以下结合具体实施例，并参照附图，对本发明进一步详细说明。但本领域技术人员知晓，本发明并不局限于附图和以下实施例。
如图1-3所示，本发明实施例的边框转角结构包括长条状的第一边框1和第二边框2，第一边框1和第二边框2在其宽度方向上具有方形截面，第一边框1的一端与第二边框2的一端重叠放置并固定在一起，本实施例中使用平头螺钉3将第一边框1和第二边框2固定在一起，当然也可以采用其他固定方式，如粘结。
如图1、图2a所示，所述第一边框1的一端端部上形成有台阶状的方形凹口，所述凹口包括背板101、第一侧壁102和底板103，由背板101、第一侧壁102和底板103限定凹口空间。
背板101为第一边框1的端部在其长度方向L上的侧壁，背板101在第一边框1的宽度方向W上的厚度小于第一边框1的宽度方向W上的整体厚度。
底板103为第一边框1的端部在其长度方向L上的下壁，底板103在第一边框1的高度方向H上的厚度小于第一边框1的高度方向H上的整体厚度，底板103的上表面1031与背板101的前表面1011垂直。
第一侧壁102为第一边框1的内侧端壁，第一侧壁102的表面与底板103的上表面1031垂直，所述凹口中与第一侧壁102相对的另一侧敞开，没有侧壁。第一侧壁102的表面与背板101的前表面1011垂直，第一侧壁102的表面与底板103的上表面1031垂直。
边框转角结构还包括限位板104，限位板104与背板101相对设置，从底板103的上表面凸出。在本实施例中，如图2a所示，限位板104为第一边框1的端部在其长度方向L上与 背板101相对侧的部分侧壁，限位板104的上边缘低于其所在位置的第一边框1的上表面。本领域技术人员可以理解，虽然在上述优选实施例中限位板104与背板101相对平行设置，但为了达到限位的作用，限位板也可以与背板101垂直设置，或者，可以在背板101、第一侧壁102、底板103上设置其他形状的限位装置。
参照图1、图2b，所述第二边框2在其一端端部上形成有台阶状缺口，所述缺口包括台阶面板201和第二侧壁202，并且其上还包括限位槽203。台阶面板201为第二边框2的端部在其长度方向上的下壁，台阶面板201在第二边框2的高度方向上的厚度小于第二边框2的高度方向上的整体厚度。第二侧壁202为第二边框2的内侧端壁。在所述台阶面板201与第二侧壁202交界位置处，在所述台阶面板201上形成所述限位槽203。具有台阶状缺口的第二边框2的端部形状至少部分与第一边框1的台阶状的方形凹口相匹配，使得第二边框2的所述端部能够嵌入到第一边框1的台阶状的方形凹口中，第二边框2的所述端部抵接到第一边框1的凹口的背板101的前表面1011，第一边框1的凹口的底板103的上表面1031与第二边框2的缺口的台阶面板201的内表面2011接合，限位板104与第二边框2的限位槽203相互卡合定位。
在本实施例中，使用平头螺丝3固定第一边框1和第二边框2，在第二边框2的缺口的台阶面板201中开设有螺丝通孔，在第一边框1的凹口的底板103的对应位置上开设供螺丝旋入的螺孔。当然，也可以在第一边框1的凹口的底板103上设置螺丝通孔、在第二边框2的缺口的台阶面板201中开设螺孔。优选的，在开设所述螺丝通孔的边框的外表面上，与螺丝通孔对应的设置有容纳螺丝头的凹部31，使得旋入的螺丝头不超出边框的外表面。
在本实施例中，第一边框1具有凹口，通过其背板101、第一侧壁102、底板103和限位板104对具有台阶状缺口的第二边框2的端部进行限位，使得第二边框2能够准确的定位到第一边框1的安装位置，并对两个边框进行固定。
在本实施例中，优选的，第一边框1、第二边框2具有相同的厚度，第一边框1、第二边框2叠置的边角部的厚度与第一边框1或第二边框2的厚度相同。
在上述实施例中，第一边框1和第二边框2在其宽度方向上的截面为方形，但也可以为其他形状。
在上述实施例中，第一边框1与第二边框2形成90°的转角，但也可以形成其他角度的转角，仅需要根据第一边框1与第二边框2的长度方向上的轴线夹角，相应调整第一边框2的凹口与第二边框2的台阶状端部的配合形状即可，如图4所示。
在上述实施例中，第一边框1的凹口的底板103的上表面1031也可以与背板101的前表 面1011不垂直，而成其他角度，具有棱线，能够起到定位作用即可。第一侧壁102的表面也可以与底板103的上表面1031不垂直，而成其他角度，具有棱线，能够起到定位作用即可。
此外，在上述实施例中，第一边框1的凹口的背板101、第一侧壁102、底板103和限位板104以及第二边框2的缺口的台阶面板201、第二侧壁202和限位槽203均为平面，但本领域技术人员可以理解，其也可以是曲面，只要第一边框1与第二边框2之间的接触面相互配合即可。
在本发明的又一实施例中，如图5所示，所述限位板104的上边缘低于其所在位置的第一边框1的上表面，在并在限位板104与第一侧壁102之间具有开口105，开口105的下端不低于第一边框1的凹口的底板103的上表面1031。在背板101的前表面的顶端沿第一边框1的长度方向L开设有凹槽106，凹槽106两端封闭，凹槽106具有小于在背板101的前表面1011在第一边框1的宽度方向W上的尺寸的深度，凹槽106在第一边框1的上表面敞开，凹槽106在第一边框1上的下表面优选的与所述限位板104的上边缘平齐。第二边框2具有与第一边框1的上述开口105和凹槽106匹配的结构。
安装时，第二边框2端部的缺口能够由第一边框1的开口105限位，并进一步搭接在凹口的限位板104的上边缘以及第一边框1的凹槽106中，从而在使用螺丝固定第一边框1和第二边框2时，固定部不会上翘变形，转角结构更为稳固。
以上，对本发明的实施方式进行了说明。但是，本发明不限定于上述实施方式。凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种边框转角结构，包括长条状的第一边框和第二边框，第一边框的一端与第二边框的一端叠置并固定，其特征在于：
    所述第一边框的一端端部上形成有台阶状的凹口，所述凹口包括背板、第一侧壁和底板，背板为第一边框的端部在其长度方向上的侧壁，背板在第一边框的宽度方向上的厚度小于第一边框的宽度方向上的整体厚度，底板为第一边框的端部在其长度方向上的下壁，底板在第一边框的高度方向上的厚度小于第一边框的高度方向上的整体厚度，第一侧壁为第一边框的内侧端壁；
    所述第二边框在其一端端部上形成有台阶状缺口，所述缺口包括台阶面板和第二侧壁，台阶面板为第二边框的端部在其长度方向上的下壁，台阶面板在第二边框的高度方向上的厚度小于第二边框的高度方向上的整体厚度，第二侧壁为第二边框的内侧端壁，
    第一边框的凹口的底板上表面与背板的前表面呈一夹角，和/或第一侧壁的表面与底板上表面呈一夹角，台阶状缺口所在的第二边框的端部具有与第一边框的凹口中所具有的上述夹角相匹配的形状。
  2. 如权利要求1所述的边框转角结构，其特征在于：所述第一边框的凹口与所述第二边框的台阶状缺口上设置有相互配合的限位部件。
  3. 如权利要求2所述的边框转角结构，其特征在于：所述限位部件为设置在第一边框上的限位槽和设置在第二边框上与所述限位槽配合使用的限位板，或者，所述限位部件为设置在第一边框上的限位板和设置在第二边框上与所述限位板配合使用的限位槽。
  4. 如权利要求3所述的边框转角结构，其特征在于：在第一边框上设置所述限位板时，所述限位板与凹口的背板相对设置，从底板的上表面凸出；在所述第二边框的缺口的台阶面板与第二侧壁交界位置处，在所述台阶面板上形成所述限位槽。
  5. 如权利要求4所述的边框转角结构，其特征在于：所述限位板为第一边框的端部在其长度方向上与背板相对侧的部分侧壁。
  6. 如权利要求3-5之一所述的边框转角结构，其特征在于：所述限位板的上边缘低于其所在位置的边框的上表面，
    或者，所述限位板的上边缘低于其所在位置的第一边框的上表面，在并在限位板与所述第一侧壁之间具有开口，所述开口的下端不低于第一边框的凹口的底板的上表面；在凹口背板的前表面的顶端沿第一边框的长度方向开设有凹槽，所述凹槽两端封闭，且具有小于背板的前表面在第一边框的宽度方向上的尺寸的深度，所述凹槽在第一边框的上表面敞开。
  7. 如权利要求6所述的边框转角结构，其特征在于：所述凹槽在第一边框上的下表面与所述限位板的上边缘平齐。
  8. 如权利要求1-5之一所述的边框转角结构，其特征在于：所述边框转角结构还包括螺丝、螺丝通孔和螺孔，
    所述螺丝通孔设置在第二边框的缺口的台阶面板中，所述螺孔设置在第一边框的凹口的底板的对应位置上，或者，所述螺丝通孔设置在第一边框的凹口的底板上，所述螺孔设置在第二边框的缺口的台阶面板中。
  9. 如权利要求8所述的边框转角结构，其特征在于：所述螺丝为平头螺丝，并且在设置所述螺丝通孔的边框的外表面上，与螺丝通孔对应的设置有容纳螺丝头的凹部，和/或，
    第一边框和第二边框具有相同的厚度，第一边框、第二边框叠置的转角部的厚度与第一边框或第二边框的厚度相同。
  10. 如权利要求1-5之一所述的边框转角结构，其特征在于：第一边框和第二边框在其宽度方向上具有方形截面，所述第一边框的台阶状的凹口呈方形，
    第一边框的凹口的底板的上表面与背板的前表面垂直，第一侧壁的表面与底板的上表面垂直，第一侧壁的表面与背板的前表面垂直。
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JP2002295424A (ja) * 2001-03-28 2002-10-09 Maruhachi Mawata Co Ltd 枠組立金具
CN201368095Y (zh) * 2009-02-17 2009-12-23 成和金属家私(深圳)有限公司 边框转角连接件
CN102454669A (zh) * 2010-10-19 2012-05-16 郭祥征 二个榫结构构成的直角
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