WO2020199161A1 - 用于组装结构体的结构单元 - Google Patents

用于组装结构体的结构单元 Download PDF

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Publication number
WO2020199161A1
WO2020199161A1 PCT/CN2019/081265 CN2019081265W WO2020199161A1 WO 2020199161 A1 WO2020199161 A1 WO 2020199161A1 CN 2019081265 W CN2019081265 W CN 2019081265W WO 2020199161 A1 WO2020199161 A1 WO 2020199161A1
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Prior art keywords
structural unit
end surface
unit according
plug
clamping
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PCT/CN2019/081265
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English (en)
French (fr)
Inventor
黄忠圣
Original Assignee
黄忠圣
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Application filed by 黄忠圣 filed Critical 黄忠圣
Priority to PCT/CN2019/081265 priority Critical patent/WO2020199161A1/zh
Priority to CN201980001360.4A priority patent/CN112272526A/zh
Priority to TW108128482A priority patent/TWI707105B/zh
Publication of WO2020199161A1 publication Critical patent/WO2020199161A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B87/00—Sectional furniture, i.e. combinations of complete furniture units, e.g. assemblies of furniture units of the same kind such as linkable cabinets, tables, racks or shelf units
    • A47B87/02—Sectional furniture, i.e. combinations of complete furniture units, e.g. assemblies of furniture units of the same kind such as linkable cabinets, tables, racks or shelf units stackable ; stackable and linkable
    • 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
    • F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like

Definitions

  • the invention belongs to the technical field of mechanical design, and particularly relates to a structural unit that can be combined into a structure of any form.
  • brackets for storing various tools or objects. Due to the nature of the work and the different workplaces, it is impossible to buy a bracket that fully meets the needs, and the person in charge is not a woodworking professional. Therefore, under normal circumstances, a series of different brackets can only be installed and revised according to the work needs, thereby increasing In order to improve the company’s initial investment in these stents. In addition, some of the brackets are only used in a specific commercial project. When the project ends, the brackets are also discarded, which significantly increases management costs and brings environmental governance issues.
  • this patent proposes a structural unit that can be assembled arbitrarily, which can be spliced into various forms of structural parts by using each structural unit to meet the needs of various environments; when the structural parts are not used, they can be disassembled into Each structural unit is easy to store, which significantly reduces the storage and maintenance burden of the enterprise on the bracket.
  • the present invention provides a module that can be assembled into any structure and a structure assembled from the module.
  • the purpose is to propose a structural unit that can be combined into any form of support to solve the problem of shopping malls. There are four difficulties in life-use appliances that you can't buy, you can't make them yourself, and that asking people to make them are expensive, and you must finally discard them. .
  • the structural unit according to the present invention includes a first end surface, a second end surface opposite to the first end surface, and four side surfaces extending between the first end surface and the second end surface and sequentially connected: a first side surface, a second side surface, and a third side surface.
  • the side surface and the fourth side surface wherein a plug is provided on the first end surface, which is basically located at the center of the first end surface, and is a circular boss, and several horizontally arranged on the opposite side of the circumferential surface of the circular boss
  • the protruding strip is provided with a receiving portion on the second end surface, the shape and position of which correspond to the plug, allowing the plug of another structural unit to be accessed and clamped; on at least one of the first side and the second side, set
  • the T-shaped convex strip is provided with a push groove corresponding to the shape of the T-shaped convex strip on at least one of the third side surface and the fourth side surface.
  • the receiving portion has two entry portions that allow the protruding strip to enter.
  • the side walls of the receiving portion are arranged oppositely, and a number of shallow grooves are provided on the side walls between the two entry portions. , Used to jam the protruding strip.
  • first side surface and the second side surface are both provided with the protruding strips, and the third side surface and the fourth side surface are both provided with the push groove.
  • the bottom surface of the end push groove is provided with micro grooves, and the corresponding positions on the top surface of the T-shaped convex strip are provided with micro protrusions.
  • a stop protrusion is provided on the two side walls of the micro groove respectively, and they are in staggered positions so that the micro protrusions are stuck in the middle. .
  • the structural unit includes: a body having the first side surface, the second side surface, the third side surface and the fourth side surface, the first end surface of the body also has an opening; the connecting piece, the main body of which is one A cylindrical member, the plug is located at the upper end of the cylindrical member, the receiving portion is located at the lower part of the cylindrical member, the connecting member passes through the body and is clamped with the main body. The plug protrudes from the first end surface through the opening (16).
  • the outer hole of the connector feature (27) is a hole left by the mold to make the feature (232) without any function.
  • the outer side of the lower part has a first clamping part, and the corresponding position of the body has The second clamping part cooperates with the first clamping part to realize the clamping connection.
  • the outer diameter of the lowermost protrusion among the plurality of protrusions is slightly larger than the diameter of the opening of the main body, so as to realize the clamping after installation.
  • the lower part of the connecting cylinder includes a bottom plate whose shape is adapted to the shape of the body. After installation, the bottom plate is just received at the lower end of the four walls of the body.
  • the outer wall of the cylindrical member has reinforcing ribs, a corresponding support plate is provided in the body, and a slot is provided in the corresponding position of the support plate, and the support plate is in the body.
  • the arrangement allows the reinforcing rib to fit into the slot after the connecting piece is inserted into the body.
  • Figure 1 is a perspective view of the appearance of a structural unit according to the present invention, in which a first end surface is shown;
  • Fig. 2 is a perspective view of the appearance of the structural unit according to the present invention from another perspective, in which the second end surface is shown;
  • Figure 3 is a schematic diagram of a connector in a specific embodiment of the present invention.
  • Figure 4 is a schematic diagram of the ontology in a specific embodiment of the present invention.
  • Figure 5 is a bottom view of the body shown in Figure 4.
  • FIGS 6 to 8 are schematic diagrams of several pieces of furniture constructed according to the module of the present invention.
  • the upper end is the first end surface, the lower end surface and the second end surface.
  • a plug 21 is provided on the first end surface, which is basically located at the center of the first end surface, and is a circular boss.
  • a number of convex bars 22 are horizontally arranged on the opposite side of the circumferential surface of the circular boss;
  • the end surface is provided with a receiving portion 23 whose shape and position correspond to the plug, allowing the plug 21 of another structural unit to be accessed and clamped.
  • the protruding strip 22 and the corresponding receiving portion 23 can have one layer, two layers, multiple layers, two sides, three sides, and multiple sides, etc.
  • the style can be threaded or simple convex or various methods, etc.
  • T-shaped convex strips 11 are provided on the first and second side surfaces, and push grooves 13 corresponding to the shape of the T-shaped convex strips are provided on the third and fourth side surfaces.
  • only one of the first side surface and the second side surface has the protrusion 11, and correspondingly, only one of the third side surface and the fourth side surface has the push groove 13.
  • the solution shown in Figure 1 is better.
  • the receiving part 23 is a receiving hole, but the orifice is not a regular circle, but has a long diameter and a short diameter, where the long diameter is between the two entry parts 231 shown in the figure.
  • a number of shallow grooves 232 are provided on the side wall between the two entry parts, and the shallow grooves are adapted to the convex strip 22.
  • the bottom surface of the pushing groove 13 is provided with a micro groove 14, and the top surface of the T-shaped convex strip 11 is provided with a micro protrusion 12 at a corresponding position.
  • the micro protrusion 12 is fitted in the micro groove 14. There is a certain friction between the micro grooves and the micro protrusions, which can limit the relative movement between the units after assembly, thereby enhancing the strength of the assembled product.
  • a stopper protrusion 15 is provided on the two side walls of the micro-groove 14, which are in a staggered position, and can be The micro protrusion 12 is stuck in the middle. In this way, the fixing fastness before the structural unit is further improved.
  • the micro protrusion 12 and the stop protrusion 15 can be round, square, ellipse, trapezoid, various shapes, etc
  • Figures 3 to 5 show another embodiment of the present invention.
  • the structural unit is a split structure composed of a main body 1 and a connector 2.
  • the main body 1 has the aforementioned first side surface, second side surface, third side surface and fourth side surface, on which T-shaped protruding strips 11 or push grooves 14 are provided.
  • the first end surface of the body also has an opening 16.
  • the main body of the connecting member 2 is a cylindrical member 24, the plug 21 is located at the upper end of the cylindrical member, and the receiving portion 23 is located at the lower part of the cylindrical member.
  • the connecting member 2 passes through the body 1 from the first end surface of the body, and is clamped with the body. After being clamped, the plug passes through the opening 16 and protrudes from the first end surface.
  • the effect after assembly is the effect shown in Figure 1.
  • the outer diameter of the lowermost rib of the plurality of ribs 22 is slightly larger than the diameter of the opening 16 of the body 1, so that when the structure is assembled, the joint 21 of the connector 2 is pushed out by the thrust After the hole 16 is opened, the connector is stuck on the hole 16 and will not easily fall off. It is also possible to simply insert the connector feature 22 through the opening 16 and insert it with a pin to prevent it from falling off.
  • the lower part of the connecting piece includes a bottom plate 28, the shape of which is adapted to the shape of the body. After installation, the bottom plate is just received at the lower end of the four walls of the body. As a preferred way, a buckle structure can be provided at the corresponding position at the lower end of the main body to allow the bottom plate 28 to be clamped in the main body 1.
  • the outer wall of the cylindrical member 24 has a reinforcing rib 25, and a corresponding support plate 17 is provided in the body.
  • the support plate 17 is provided with a slot 171 in the corresponding position ( Figure 5).
  • the arrangement of the support plate in the body allows the connector to be inserted After the main body is inserted, the rib 25 is stuck in the slot 171.
  • the function of the stiffener can not only restrict the rotation of the connecting member 2 in the main body 1, but more importantly, it can bear the strong pressure from all sides of the structure, for example, when the structure is a chair, a table or a load-bearing frame. More preferably, there are four reinforcing ribs 25 and four supporting plates 17 respectively.
  • connection between the connector and the main body can be realized in such a way that the lower outside of the connector has a first clamping portion 27, and the corresponding position of the main body has a second clamping portion, which cooperates with the first clamping portion.
  • the first clamping portion is a protrusion
  • the second clamping portion is a clamping groove
  • the first clamping portion is a clamping groove and the second receiving portion is a protrusion.
  • the split structure of this embodiment has the advantage of avoiding the solid structure of the structural unit, greatly reducing the amount of material used, and making the industrial production of the hollow structural unit easier to realize.
  • the material of the structural unit of the present invention can be wood, plastic, polymer resin material. These materials usually have certain deformation properties, so that the assembly of the structural units is not too laborious.
  • the structural unit of the present invention can be assembled into various structural parts, for example, as shown in FIGS. 6 to 8.
  • Other examples are pet sheds, tatami mats, shoe cabinets, bookshelves, workshop shelves, car shelves, etc. The scope of use depends only on the imagination of the user.
  • the plug and the body may be integrally formed, or the receiving portion and the body may be integrally formed. Any modification, equivalent replacement, improvement, etc., made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Abstract

一种用于组装结构体的结构单元，包括第一端面、与第一端面相对的第二端面以及延伸在第一端面和第二端面之间且依次连接的四个侧面：第一侧面、第二侧面、第三侧面和第四侧面，在第一端面上设有插头(21)，其基本位于第一端面的中心位置，且是圆形凸台，在该圆形凸台的周面的相对侧水平地布置若干凸条(22)；在第二端面设有承接部(23)，其形状和位置与所述插头相应，允许另一个结构单元的插头(21)接入并卡紧；在第一侧面和第二侧面的至少之一上，设置T型凸条(11)，在第三侧面和第四侧面的至少之一上，设有与所述T型凸条(11)形状相应的推槽(13)。这样就可以通过所述结构单元间的拼接，组成各种形式的结构体，满足各种工作环境的需要。具有便于存放，显著减轻企业对支架的保管和维护负担的优点。

Description

用于组装结构体的结构单元 技术领域
本发明属于机械设计技术领域，特别涉及一种可组合为任意形式结构体的结构单元。
背景技术
企业需要一系列的支架用于存放各种工具或物件。因工作性质、工作场地的不同，买不到完全符合需求的支架，加上负责人自己不是木工专业，所以在通常情况下，只能根据工作需要装修订制一系列不同的支架，从而增大了企业对这些支架的前期投入。此外，部分支架仅在某个具体的商业项目中使用，当项目结束后，支架也被废弃，显着增加了管理成本，还带来了环境治理的问题。
在居家方面，很多家庭都对模块拼接式家具存在需求，尤其是居住空间不大的家庭。在变换空间布局时需要对家具的形状和用途进行变化，例如将原先的搁物架变成一个花架，原来的写字桌没有用场，而添置一个茶几。另外，在有孩子的家庭，儿童家具则更需要频繁调整，因为孩子身高每年变化很大，而且年龄越小，调整越频繁，例如，孩子专用的椅子、凳子、小饭桌、写字桌、乐器架、其他搁物架等等，随年龄不同都需要变化尺寸乃至格局。但是现有技术没有解决这种需求，目前的措施只是扔掉旧的，买来新的，造成很多人力、资源的浪费。在发生诸如地震、台风、海啸、龙卷风等自然灾害的情况下，户外救援装备中也需要用到搁物架或者支架，但传统的支架在运输和使用上都有不便，影响紧急救援的效率。因此提高支架的多功能性是及其有现实应用价值的。
为解决上述问题，本专利提出一种可以任意组装的结构单元，能够利用各结构单元拼接成各种形式的结构件，满足各种环境的需要；当不使用结构件时，可以将其拆卸成各个结构单元，便于存放，显着减轻企业对支架的保管和维护负担。
发明内容
为了解决现有技术的不足，本发明提供了一种可组装为任意结构体的模块及由其组装成的结构体，目的是：提出一种可组合为任意形式支架的结构单元，以解决商场买不到、自己不会做、请人做很贵、最终须抛弃的生活用器具四难点。。
根据本发明的结构单元包括第一端面、与第一端面相对的第二端面以及延伸 在第一端面和第二端面之间且依次连接的四个侧面：第一侧面、第二侧面、第三侧面和第四侧面，其中，在第一端面上设有插头，其基本位于第一端面的中心位置，且是圆形凸台，在该圆形凸台的周面的相对侧水平地布置若干凸条；在第二端面设有承接部，其形状和位置与所述插头相应，允许另一个结构单元的插头接入并卡紧；在第一侧面和第二侧面的至少之一上，设置T型凸条，在第三侧面和第四侧面的至少之一上，设有与所述T型凸条形状相应的推槽。
在一种具体实施方式中，所述承接部具有允许所述凸条进入的两个进入部，在承接部侧壁相对地设置，在两个进入部之间的侧壁上设有若干浅槽，用于卡住所述凸条。
在一种具体实施方式中，所述第一侧面和第二侧面都设有所述凸条，所述第三侧面和第四侧面都设有所述推槽。
在一种具体实施方式中，所述端推槽的底面开有微槽，所述T型凸条的顶面对应位置设有微凸起。
在一种具体实施方式中，对应所述微凸起，在所述微槽的两个侧壁分别设有一个止挡凸起，它们处于错开的位置，以将所述微凸起卡在中间。
在一种具体实施方式中，结构单元包括：本体，具有所述第一侧面、第二侧面，第三侧面和第四侧面，本体的第一端面还有开孔；连接件，其主体为一个筒形件，所述插头位于所述筒形件上端，所述承接部位于所述筒形件的下部，所述连接件穿过所述本体，并与该本体卡接，卡接后所述插头穿过所述开孔(16)突出于所述第一端面。
在一种具体实施方式中，所述连接件特征(27)外部孔洞是模具为做出特征(232)而留下的孔洞无任何功能下部外侧具有第一卡接部，所述本体对应位置具有第二卡接部，与所述第一卡接部配合，实现卡接。
在一种具体实施方式中，所述若干凸条中最下边的凸条之外径略大于本体的所述开孔的直径，实现安装后的卡接。
在一种具体实施方式中，所述连接筒下部包括底板，其形状与所述本体的形状适配，安装后，所述底板刚好容纳在所述本体四壁下端。
在一种具体实施方式中，所述筒形件外壁具有加强筋，在所述本体内具有相应的支撑板，所述支撑板中对应位置设有卡槽，所述支撑板在所述本体内的布置允许所述连接件插入本体后，所述加强筋配合于所述卡槽内。
在一种具体实施方式中，所述加强筋和所述支撑板分别为四个。
附图说明
图1为根据本发明的结构单元的外观立体图，其中显示第一端面；
图2为根据本发明的结构单元的另一视角的外观立体图，其中显示第二端面；
图3为本发明一个具体实施例中的连接件的示意图；
图4为本发明一个具体实施例中的本体的示意图；
图5为图4所示本体的仰视图；
图6至图8是根据本发明模块构建的若干家具示意图。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整的描述。本申请中所采用的“上”、“下”等是相对含义，倒过来描述也是可以的。
参见附图1和图2，其示出的是一个结构单元，图1中上端是第一端面、下端面第二端面，延伸在第一端面和第二端面之间且依次连接的四个侧面分别为第一侧面、第二侧面、第三侧面和第四侧面。就是说本发明的结构单元基本是方形，例如长方体，立方体。
在第一端面上设有插头21，其基本位于第一端面的中心位置，且是圆形凸台，在该圆形凸台的周面的相对侧水平地布置若干凸条22；在第二端面设有承接部23，其形状和位置与所述插头相应，允许另一个结构单元的插头21接入并卡紧。凸条22与相对应的承接部23可以有一层两层多层与两侧三侧多侧等等样式可以为螺纹或单纯凸起或各种方式等等
本实施例中，在第一侧面和第二侧面上，设置T型凸条11，在第三侧面和第四侧面上，设有与T型凸条形状相应的推槽13。在其它实施方案中，第一侧面和第二侧面中只有一个具有凸条11，相应地，在第三侧面和第四侧面中只有一个具有推槽13。当然，从积木的适用性而言，图1示出的方案是较佳的。
如图2所示，承接部23是一个承接孔，但是孔口不是规则的圆形，而是具有一个长直径和短直径，其中，长直径是图中所示两个进入部231之间的最大距离，在两个进入部之间的侧壁上设有若干浅槽232，该浅槽适配凸条22。另一个 单元的接头插入该承接部后，旋转一定角度，凸条22就被卡紧在浅槽232中，这需要部件之间的过紧配合。
图1中，推槽13的底面开有微槽14，T型凸条11的顶面对应位置设有微凸起12。当一个单元的凸条推入另一个单元的推槽中时，微凸起12装配在微槽14中。微槽与微凸起之间具有一定的摩擦力，可以限制组装后各单元之间的相对移动，从而加强组装产品的强度。作为更进一步的改进，相应于微凸起12在T型凸条中的位置，在微槽14的两个侧壁设有分别设有一个止挡凸起15，它们处于错开的位置，可以将微凸起12卡在中间。这样结构单元之前的固接牢度进一步提高。微凸起12与止挡凸起15可以为圆形方形椭圆梯形各种造型等等
图3至图5示出本发明的另一个实施例。在本实施中，结构单元是分体结构，由本体1和连接件2组成。本体1具有前述的第一侧面、第二侧面，第三侧面和第四侧面，上面设有T型凸条11或者推槽14。本体的第一端面还有开孔16。连接件2的主体为一个筒形件24，插头21位于筒形件上端，承接部23位于筒形件的下部，连接件2从本体的第一端面穿过本体1，与该本体卡接，卡接后插头穿过开孔16突出于第一端面。装配后的效果即是图1显示的效果。
如图3所示，多个凸条22中最下边的凸条的外径略大于本体1的开孔16的直径，这样，在装配结构体时，靠着推力将连接件2的接头21推出开孔16后，接头就卡在开孔16上，不会轻易脱落。也可以单纯为连接件特征22穿过开孔16后另外用插销插上使无法脱落
连接件下部包括底板28，其形状与本体的形状适配，安装后，底板刚好容纳在本体四壁下端，其效果图可以参见图2。作为优选方式，在本体下端的对应位置，可以设置卡扣结构，让底板28卡接在本体1内。
作为优化设计，筒形件24外壁具有加强筋25，在本体内具有相应的支撑板17，支撑板17中对应位置设有卡槽171图5)，支撑板在本体内的布置允许连接件插入本体，插入后，加强筋25卡在卡槽171内。该加强筋的作用，既可以限制连接件2在本体1内的转动，更重要地，是可以承受结构体来自各方的强大压力，例如结构体是椅子、桌子或者承重架的时候。更优选地，加强筋25和支撑板17分别为四个。
在其他实施方式中，连接件与本体的卡接可以这样的方式来实现：连接件下部外侧具有第一卡接部27，本体对应位置具有第二卡接部，与第一卡接部配合，实现卡接。第一卡接部为凸起，第二卡接部为卡槽，或者第一卡接部为卡槽，第二承接部为凸起。
采用本实施例的分体式结构，相比于整体式结构的优势是，避免了结构单元的实心构造，大大降低了材料的使用量，另外使得空心结构单元的工业生产易于实现。
本发明结构单元的制作材料可以木材、塑料、高分子树脂材料。这些材料，通常都具有一定的形变性能，使得结构单元的组装不至于太费力。
本发明的结构单元可以组装成各种结构件，例如图6至图8所示。其他的例子有宠物棚、榻榻米、鞋柜、书架、车间搁物架，车载搁物架等等，其使用范围仅仅取决于使用者的想象力。
以上仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。例如，可以将插头与本体一体成型，还可以将承接部和本体一体成型。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (12)

  1. 一种用于组装结构体的结构单元，其特征在于，包括第一端面、与第一端面相对的第二端面以及延伸在第一端面和第二端面之间且依次连接的四个侧面：第一侧面、第二侧面、第三侧面和第四侧面，其中：
    在第一端面上设有插头(21)，其基本位于第一端面的中心位置，且是圆形凸台，在该圆形凸台的周面的相对侧水平地布置若干凸条(22)；
    在第二端面设有承接部(23)，其形状和位置与所述插头相应，允许另一个结构单元的插头(21)接入并卡紧；
    在第一侧面和第二侧面的至少之一上，设置T型凸条(11)，在第三侧面和第四侧面的至少之一上，设有与所述T型凸条形状相应的推槽(13)。
  2. 根据权利要求1所述的结构单元，其中，所述承接部(23)具有允许所述凸条(22)进入的两个进入部(231)，在承接部侧壁相对地设置，在两个进入部之间的侧壁上设有若干浅槽(232)，用于卡住所述凸条(22)。
  3. 根据权利要求1所述的结构单元，其中，所述第一侧面和第二侧面都设有所述凸条，所述第三侧面和第四侧面都设有所述推槽(13)。
  4. 根据权利要求1所述的结构单元，其中，所述端推槽(13)的底面开有微槽(14)，所述T型凸条的顶面对应位置设有微凸起(12)。
  5. 根据权利要求1所述的结构单元，其中，对应所述微凸起(12)，在所述微槽(14)的两个侧壁设有分别设有一个止挡凸起(15)，它们处于错开的位置，以将所述微凸起卡在中间。
  6. 根据权利要求1所述的结构单元，其特征在于，包括：
    本体(1)，具有所述第一侧面、第二侧面，第三侧面和第四侧面，本体的第一端面还有开孔(16)；
    连接件(2)，其主体为一个筒形件(24)，所述插头(21)位于所述筒形件上端，所述承接部(23)位于所述筒形件的下部，所述连接件穿过所述本体，并与该本体卡接，卡接后所述插头穿过所述开孔(16)突出于所述第一端面。
  7. 根据权利要求6所述的结构单元，其特征在于，所述连接件下部外侧具有第一卡接部(27)，所述本体对应位置具有第二卡接部，与所述第一卡接部配合，实现卡接。
  8. 根据权利要求7所述的结构单元，其特征在于，第一卡接部为凸起，所述第二卡接部为卡槽，或者第一卡接部为卡槽，第二承接部为凸起。
  9. 根据权利要求6所述的结构单元，其特征在于，所述若干凸条(22)中最下边的凸条之外径略大于本体的所述开孔(16)的直径，实现安装后的卡接。
  10. 根据权利要求6所述的结构单元，其特征在于，所述连接件下部包括底板(28)，其形状与所述本体的形状适配，安装后，所述底板刚好容纳在所述本体四壁下端。
  11. 根据权利要求6所述的结构单元，其特征在于，所述筒形件(24)外壁具有加强筋(25)，在所述本体内具有相应的支撑板(17)，所述支撑板(17)中对应位置设有卡槽(171)，所述支撑板在所述本体内的布置允许所述连接件插入本体后，所述加强筋(25)配合于所述卡槽(171)内。
  12. 根据权利要求11所述的结构单元，其特征在于，所述加强筋(25)和所述支撑板(17)分别为四个。
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