WO2023116528A1 - 一种连接结构 - Google Patents

一种连接结构 Download PDF

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Publication number
WO2023116528A1
WO2023116528A1 PCT/CN2022/138968 CN2022138968W WO2023116528A1 WO 2023116528 A1 WO2023116528 A1 WO 2023116528A1 CN 2022138968 W CN2022138968 W CN 2022138968W WO 2023116528 A1 WO2023116528 A1 WO 2023116528A1
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Prior art keywords
double
connection
staple
ended
connection structure
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PCT/CN2022/138968
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English (en)
French (fr)
Inventor
王超
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长春捷翼汽车科技股份有限公司
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Publication of WO2023116528A1 publication Critical patent/WO2023116528A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14Conductive energy transfer
    • B60L53/16Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/02Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose in one piece with protrusions or ridges on the shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00Bolts without screw-thread; Pins, including deformable elements; Rivets
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/502Bases; Cases composed of different pieces
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

Definitions

  • the present application relates to the technical field of mechanical equipment manufacturing, and more specifically, relates to a connection structure.
  • the traditional connection of plastic parts should be connected by screw connection or clamping connection.
  • the clamping connection refers to setting corresponding claws or grooves at both ends of the connection, and assembling through the grooves and claws to make them connected together.
  • the advantage of the card connection method is that the connection is fast and detachable.
  • the screw connection method refers to the threaded connection, which is a detachable connection in which the connected parts are integrated with the threaded part or the threaded part of the connected part.
  • Commonly used threaded joints include bolts, studs, screws and set screws, etc., mostly standard parts.
  • the common advantage of screw connection and clip connection is that it is easy to disassemble, and anyone can easily disassemble the plastic parts by releasing the screw connection or clip connection. This also has obvious disadvantages.
  • the purpose of this application is to provide a hidden connection structure of plastic parts, which can make the surface of the connected equipment have no visible screw and buckle connection structure, and prevent danger after being disassembled due to curiosity or other reasons.
  • connection structure comprising a first body, a second body and a double-ended staple
  • Both the first body and the second body have connection holes capable of interference fit with the double-ended staple
  • the double-ended staple is respectively connected to the first body and the second body through the connection hole.
  • the longitudinal section of the protrusion is trapezoidal.
  • the double-ended staple is columnar, the connection hole is cylindrical, and the ratio of the maximum radius of the cross-section of the double-ended staple to the radius of the cross-section of the connection hole is: 1:0.95-1:0.88.
  • a clamping portion is provided inside the connection hole, and the clamping portion protrudes from an inner wall of the connection hole.
  • the angle between the surface of the barb facing away from the connecting hole and the axial direction of the double-ended staple is 5°-55°.
  • connection holes of the first body and the second body is not less than two.
  • the material of the first body and/or the second body is plastic.
  • a baffle is arranged on the double-ended staple, and the connection hole also includes a cavity capable of accommodating the baffle.
  • the first body is the front body of the charging stand, and the second body is the rear body of the charging stand.
  • the application has the following effects: the double-headed staple can be hidden inside the first body and the second body to complete the connection between the first body and the second body, and the user will not easily find the connection and disassemble it, which is harmful to the equipment and It can protect users.
  • the protrusion on the double-headed staple and the blocking portion in the connection hole can effectively increase the clamping force, making the connection between the first body and the second body more secure.
  • FIG. 1 is a cross-sectional view of a connection structure of the present application.
  • Fig. 2 is an assembly diagram of a connection structure of the present application.
  • Fig. 3 is a structural schematic diagram of a double-ended staple with a connection structure of the present application.
  • FIG. 4 is a schematic structural diagram of a connection hole of a connection structure of the present application.
  • Fig. 5 is a schematic structural diagram of a connection structure cavity of the present application.
  • Fig. 6 is a schematic structural diagram of a connection structure blocking plate of the present application.
  • a connection structure disclosed in the present application includes a first body 1, a second body 2 and a double-ended staple 3;
  • Both the first body 1 and the second body 2 have connection holes 4 capable of interference fit with the double-ended staple 3;
  • the double-ended staples 3 are respectively connected to the first body 1 and the second body 2 through the connection holes 4 .
  • the installed equipment does not want to be easily opened or disassembled by the user, and the existing plastic connectors are often connected by screw or clamp, and sometimes by riveting.
  • the advantage of these connection methods is that the connection part is exposed outside, which is convenient for installation and disassembly.
  • the disadvantage is also obvious, that is, the user can easily find the connection part and disassemble it. This is easy to cause damage to the equipment, especially in some scenarios, such as the charging stand on the new energy vehicle, when the user opens the charging stand structure without permission, it is easy to be dangerous. Therefore, this application provides a hidden connection structure, one end of the double-ended staple 3 is inserted into the connection hole 4 of the first body 1, and one end of the double-ended staple 3 is clamped to the first body 1 through interference fit. , and then the other end of the double-ended staple 3 is clamped with the second body 2, thereby completing the connection between the first body 1 and the second body 2.
  • the double-ended staple 3 has at least two oppositely disposed protrusions. As shown in FIG. 3 , the protrusion can better increase the friction between the double-ended staple 3 and the connecting hole 4 , making it harder to separate the connected first body 1 and second body 2 .
  • the longitudinal section of the protrusion is trapezoidal.
  • the radius of the axial section of the projection on the double-ended staple 3 increases in the opposite direction to the insertion direction, as shown in Figure 3, the longitudinal section of the projection is trapezoidal, the long side of the trapezoid is close to the middle of the double-ended staple 3, and the short The edge is close to the head of the double-ended staple, so that it is more labor-saving when inserting into the connecting hole 4, and it is more difficult to pull out from the connecting hole 4 after insertion.
  • the double-ended staple 3 is columnar
  • the connecting hole 4 is cylindrical
  • the ratio of the maximum radius of the section of the double-ended staple 3 to the radius of the section of the connecting hole 4 is: 1: 0.95-1:0.88. That is to say that the protrusion of the double-ended staple 3 is thicker than the connection hole 4 or both are equal, so as to realize the interference fit and complete the connection between the first body 1 and the second body 2, but if the protrusion of the double-ended staple 3 The section radius of the thickest part is too large and cannot be inserted into the connection hole 4.
  • the inventor has carried out a related test.
  • the test method is to select 10 groups Double-ended staples 3 with different sectional radii and connecting holes 4 with the same sectional radius. Carry out the opposite insertion test respectively, apply a force of 2000N to the double-ended staple 3 to insert it into the connecting hole 4, if it can be fully inserted, it is qualified, and if it cannot be inserted, it is unqualified. After insertion, apply 500N to the double-ended staple 3 to pull it out. If the double-ended staple 3 can be pulled out, it is unqualified, and if it can be pulled out, it is qualified. The results are shown in Table 1.
  • Table 1 The effect of the ratio of the maximum radius of the cross-section of the double-ended staple 3 to the radius of the cross-section of the connecting hole 4 on whether it can be inserted and pulled out
  • a locking portion 41 is provided inside the connecting hole 4 , and as shown in FIG. 4 , the locking portion 41 protrudes from the inner wall of the connecting hole 4 .
  • the clamping portion 41 protrudes toward the inside of the connection hole 4 to clamp the double-ended staple 3 to make the connection more secure.
  • the clamping part 41 can be ring-shaped, disposed on the inner wall of the connection hole 4, and cooperate with the protrusion on the double-ended staple 3 to play a better clamping effect.
  • the double-ended staple has barbs.
  • the barbs can make it easier for the double-ended staple 3 to be inserted into the connection hole 4, and it is more difficult to separate, thereby preventing the connected device from being easily disassembled.
  • the angle between the surface of the barb facing away from the connecting hole 4 and the axial direction of the double-ended staple 3 is 5°-55°.
  • the included angle between the surface facing the connection hole 4 and the axial direction of the double-ended staple 3 is an obtuse angle. If the angle between the face of the barb facing away from the connecting hole 4 and the axial direction of the double-ended staple 3 is too large, it cannot be inserted into the connecting hole 4; There are 4 types of holes to pull out the double-ended staples 3. In order to find a suitable angle, the inventor has carried out related experiments.
  • the experimental method is to select 10 groups of different double-ended staples 3, and the face of each group of barbs facing away from the connecting hole 4 is aligned with the axial direction of the double-ended staple 3. Angles are different, select the same connecting hole 4 for use.
  • Carry out the opposite insertion test respectively apply a force of 2000N to the double-ended staple 3 to insert it into the connection hole 4, if it can be inserted, it is qualified, and if it cannot be inserted, it is unqualified.
  • After insertion apply 500N to the double-ended staple 3 to pull it out. If the double-ended staple 3 can be pulled out, it is unqualified, and if it can be pulled out, it is qualified.
  • Table 2 The results are shown in Table 2.
  • Table 2 The influence of the angle between the side of the barb facing away from the connection hole and the axial direction of the double-ended staple on whether it can be plugged in or pulled out
  • the number of connecting holes 4 of the first body 1 and the second body 2 is not less than two. There may be multiple connecting holes 4 provided on the first body 1 and the second body 2, and the more provided, the stronger the connection.
  • the material of the first body 1 and/or the second body 2 is plastic.
  • the plastic part itself has a certain degree of elasticity, which can maintain sufficient clamping force on the double-ended staple and prevent it from being disassembled.
  • the double-ended staple 3 is provided with a blocking piece 31 , as shown in FIG. 5 and FIG. 6 , and the connection hole 4 further includes a cavity 5 capable of accommodating the blocking piece 31 .
  • the blocking piece 31 can divide the double-ended staple 3 into two parts, which are plugged into the first body 1 and the second body 2 respectively, so as to prevent the double-ended staple 3 from being inserted into a connection hole 4 too much.
  • the blocking piece 31 can be arranged in the middle of the double-ended staple 3, and also can make the two parts of the double-ended staple 3 have unequal lengths according to specific conditions.
  • a cavity 5 is provided on the edge of the connecting hole 4 for accommodating the baffle 31 so that there is no gap in the connection between the first body 1 and the second body 2, and the cavity 5 can be arranged on the first body 1 or the second body 2, It is also possible that the first body 1 and the second body 2 each have a part, and the two parts form a complete cavity 5 for accommodating the blocking piece 31 .
  • the first body 1 is the front body of the charging stand
  • the second body 2 is the rear body of the charging stand. That is to say, the present application can be particularly used in the assembly of the split structure of the electric vehicle charging stand.
  • Connecting holes 4 are respectively arranged on the front body of the charging stand and the rear body of the charging stand, and one end of the double-headed staple 3 is engaged with the front body of the charging stand, and the other end is engaged with the rear body of the charging stand.
  • the corresponding parts are installed in the front body of the charging stand and the rear body of the charging stand, they can be clamped by multiple double-headed staples 3, and no connection traces will be left after the clamping. Not only is the connection very firm, but more importantly, Prevent the user from dismantling the charging stand without authorization, and avoid causing harm to the charging stand and the user.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Connection Of Plates (AREA)

Abstract

一种连接结构,涉及机械设备制造技术领域,包括第一本体(1)、第二本体(2)和双头卡钉(3);所述第一本体(1)和所述第二本体(2)均具有能够与所述双头卡钉(3)过盈配合的连接孔(4);所述双头卡钉(3)通过所述连接孔(4)分别于所述第一本体(1)及所述第二本体(2)连接。本申请具有如下效果:双头卡钉能够隐藏在第一本体和第二本体内部来完成第一本体和第二本体的连接,使用人员不会轻易找到连接处从而对其拆卸,这样对设备和对使用人员都能起到保护作用。双头卡钉上的凸起以及连接孔内的阻挡部能够有效的增加卡接力,使第一本体和第二本体连接更紧固。

Description

一种连接结构
本申请要求享有2021年12月25日递交、申请号为202123292499.2、发明名称为“一种连接结构”的中国专利的优先权,该专利的所有内容在此全部引入。
技术领域
本申请涉及机械设备制造技术领域,更具体地,涉及一种连接结构。
背景技术
传统的塑料件连接应用螺接或卡接的方式进行连接,卡接是指在连接的两端分别设置对应的卡爪或卡槽,通过卡槽和卡爪进行装配,使其连接在一起。卡接的方式优点是连接快速,可拆卸。螺接方式,是指螺纹连接,用螺纹件或被连接件的螺纹部分将被连接件连成一体的可拆卸连接。常用的螺纹联接件有螺栓、螺柱、螺钉和紧定螺钉等,多为标准件。螺接和卡接的共同好处是方便拆卸,任何人都能够很容易的通过解除螺接或者卡接来对塑料件进行拆卸。这样也有明显的缺点,很多设计结构不希望使用者能够轻易的对设备进行拆卸,而暴露在外的螺接结构或者卡接结构很难起到足够的防拆卸作用,因此,现有技术中亟需一种新的方案来解决上述问题。
发明内容
本申请的目的是提供一种隐藏式的塑料件连接结构,能够使连接后的设备表面没有可见的螺钉及卡扣连接结构,防止由于好奇及其它原因拆卸后发生危险。
一种连接结构,包括第一本体、第二本体和双头卡钉;
所述第一本体和所述第二本体均具有能够与所述双头卡钉过盈配合的连接孔;
所述双头卡钉通过所述连接孔分别于所述第一本体及所述第二本体连接。
所述双头卡钉上具有至少两个相对设置的凸起。
所述凸起的纵截面为梯形。
所述双头卡钉为柱状,所述连接孔为筒状,所述双头卡钉截面的最大半径与所述连接孔截面半径的比为:1:0.95-1:0.88。
所述连接孔内部设置卡接部,所述卡接部突出于所述连接孔内壁。
所述双头卡钉上具有倒刺。
所述倒刺背向所述连接孔的面与所述双头卡钉的轴向方向的角度为5°-55°。
所述第一本体和所述第二本体的连接孔数量分别不少于两个。
所述第一本体和/或所述第二本体的材质为塑料。
所述双头卡钉上设置挡片,所述连接孔还包括能够容纳所述挡片的腔体。
所述第一本体为充电座前本体,所述第二本体为充电座后本体。
本申请具有如下效果:双头卡钉能够隐藏在第一本体和第二本体内部来完成第一本体和第二本体的连接,使用人员不会轻易找到连接处从而对其拆卸,这样对设备和对使用人员都能起到保护作用。双头卡钉上的凸起以及连接孔内的阻挡部能够有效的增加卡接力,使第一本体和第二本体连接更紧固。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本申请的实施例,并且连同其说明一起用于解释本申请的原理。
图1为本申请一种连接结构的剖视图。
图2为本申请一种连接结构的装配图。
图3为本申请一种连接结构双头卡钉的结构示意图。
图4为本申请一种连接结构连接孔的结构示意图。
图5为本申请一种连接结构腔体的结构示意图。
图6为本申请一种连接结构挡片的结构示意图。
图中标示如下:
1-第一本体、2-第二本体、3-双头卡钉、31-挡片、4-连接孔、41-卡接部、5-腔体。
具体实施方式
现在将参照附图来详细描述本申请的各种示例性实施例。应注意到:除非另外具体说明,否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本申请的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的,决不作为对本申请及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论,但在适当情况下,所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中,任何具体值应被解释为仅仅是示例性的,而不是作为限制。因此,示例性实施例的其它例子可以具有不同的值。
本申请公开的一种连接结构,如图1和图2所示,包括第一本体1、第二本体2和双头卡钉3;
所述第一本体1和所述第二本体2均具有能够与所述双头卡钉3过盈配合的连接孔4;
所述双头卡钉3通过所述连接孔4分别于所述第一本体1及所述第二本体2连接。
在许多时候,安装好的设备不希望被使用者轻易的打开或拆卸,而现有的塑料连接件常使用螺接或者卡接进行连接,有时也会使用铆接。这些连接方式的好处是连接部分裸漏在外面,方便安装和拆卸,缺点也很明显,就是使用者很容易找到连接部位并对其进行拆卸。这很容易造成设备的损坏,特别在一些场景中,如新能源汽车上的充电座,使用者在私自打开充电座结构时很容易发生危险。因此,本申请提供了一种隐藏式连接结构,双头卡钉3的一头塞入第一本体1的连接孔4,通过过盈配合使双头卡钉3的一头与第一本体1卡紧,之后双头卡钉3的另一头与第二本体2卡紧,从而完成第一本体1和第二本体2的连接。
在一种实施方式中,所述双头卡钉3上具有至少两个相对设置的凸起。如图3所示,凸起能够更好的增加双头卡钉3与连接孔4的摩擦力,使连接后的第一本体1和第二本体2更难分开。
进一步的,所述凸起的纵截面为梯形。双头卡钉3上的凸起的轴截面半径与插入方向呈反向的递增,如图3所示,凸起的纵截面为梯形,梯形的长边靠近双头卡钉3的中间,短边靠近双头卡钉的头部,这样在插入连接孔4时更省力,插入后更难从连接孔4中拔出来。
在一些实施方式中,所述双头卡钉3为柱状,所述连接孔4为筒状,所述双头卡钉3截面的最大半径与所述连接孔4截面半径的比为:1:0.95-1:0.88。也就是说双头卡钉3的凸起要比连接孔4粗或者两者相等,才能实现过盈配合完成第一本体1和第二本体2的连接,但是如果双头卡钉3的凸起最粗处截面半径太大,又无法插入连接孔4,为了寻找合适的双头卡钉3截面半径与所述连接孔4截面半径的比,发明人进行了相关试验,试验方法为选择10组不同截面半径的双头卡钉3和相同截面半径的连接孔4。分别进行对插试验,对双头卡钉3施加2000N的力使其插入连接孔4,如 果能够完全插入为合格,不能够插入为不合格。当插入后对双头卡钉3施加500N的进行拔出,如果双头卡钉3能够拔出为不合格,能够拔出为合格,结果如表1所示。
表1:双头卡钉3截面最大半径与连接孔4截面半径的比对能否插拔的影响
Figure PCTCN2022138968-appb-000001
从表1可知,当双头卡钉3截面最大半径与所述连接孔4截面半径的比大于1:0.88后,双头卡钉3在2000N的推力下无法插入连接孔4,所以为不合格。当双头卡钉3截面最大半径与所述连接孔4截面半径的比小于1:0.93时,双头卡钉3会在500N的拔出力下脱离连接孔4,也为不合格。因此,发明人优选双头卡钉3截面最大半径与所述连接孔4截面半径的比1:0.95-1:0.88。在某些双头卡钉3上的凸起为粗细不等的结构时,双头卡钉3半径最大处与连接孔4的比不能大于1:0.88,以免不能够插入。
在一些实施方式中,所述连接孔4内部设置卡接部41,如图4所示,所述卡接部41突出于所述连接孔4内壁。卡接部41向连接孔4内部突出用以夹紧双头卡钉3,使连接更紧固。在一些实施例种,卡接部41可以为环状,设置在连接孔4的内壁上,与双头卡钉3上的凸起配合,起到更好的卡接作用。
在另一种实施方式中,所述双头卡钉上具有倒刺。倒刺能够使双头卡钉3更容易插入连接孔4,而分离时更加困难,从而防止连接后的装置被轻易拆卸。
具体的,所述倒刺背向所述连接孔4的面与所述双头卡钉3的轴向方向的角度为5°-55°。朝向连接孔4的面与双头卡钉3的轴向方向的夹角为钝角。如果倒刺背向所述连接孔4的面与所述双头卡钉3的轴向方向的角度太大则无法插入连接孔4,如果角度太小则卡接力又太小,很容易从连接孔4种拔出双头卡钉3。为了寻找合适的角度,发明人进行了相关试验,实验方法是选择10组不同双头卡钉3,每组倒刺背向连接孔4的面与所述双头卡钉3的轴向方向的角度不同,选用相同的连接孔4。分别进行对插试验,对双头卡钉3施加2000N的力使其插入连接孔4,如果能够插入为合 格,不能够插入为不合格。当插入后对双头卡钉3施加500N的进行拔出,如果双头卡钉3能够拔出为不合格,能够拔出为合格,结果如表2所示。
表2:倒刺背向连接孔的面与双头卡钉的轴向方向的角度对能否插拔的影响
Figure PCTCN2022138968-appb-000002
从表2可知,当倒刺背向所述连接孔4的面与双头卡钉3的轴向方向的角度大于55°后,双头卡钉3在2000N的推力下无法插入连接孔4,所以为不合格。当角度小于5°后,双头卡钉3会在500N的拔出力下脱离连接孔4,也为不合格。因此,发明人优选倒刺背向所述连接孔4的面与双头卡钉3的轴向方向的角度为5°-55°。
在一些实施方式中,所述第一本体1和所述第二本体2的连接孔4数量分别不少于两个。设置在第一本体1和第二本体2上的连接孔4可以有多个,设置的越多连接越牢固。
在一些实施方式中,所述第一本体1和/或所述第二本体2的材质为塑料。塑料件本身具有一定弹性,能够对双头卡钉保持足够的夹紧力,防止被拆卸。
在一些实施方式中,所述双头卡钉3上设置挡片31,如图5和图6所示,所述连接孔4还包括能够容纳所述挡片31的腔体5。挡片31能够将双头卡钉3分成两部分,分别于第一本体1和第二本体2插接,避免双头卡钉3插入某一连接孔4太多。挡片31可以设置在双头卡钉3的中间,也可以根据具体情况,使双头卡钉3的两部分不等长。连接孔4的边缘设置腔体5,用于容纳挡片31以使第一本体1和第二本体2的连接没有缝隙,该腔体5可以设置在第一本体1或第二本体2上,也可以第一本体1和第二本体2上各有一部分,两部分组成一个完整的腔体5容纳挡片31。
在一些实施例中,所述第一本体1为充电座前本体,所述第二本体2为充电座后本体。也就是说,本申请特别的可以用于电动汽车充电座分体结构的组装。在充电座前本体和充电座后本体上分别设置连接孔4,双头卡钉3的一头与充电座前本体卡接,另一头与充电座后本体卡接。这样当充电座前本体和充电座后本体内安装号相应 部件后,可以通过多个双头卡钉3进行卡接,卡接后不会留下连接痕迹,不但连接非常牢固,更重要的是防止使用者私自拆卸充电座,避免对充电座和使用者造成伤害。
虽然已经通过例子对本申请的一些特定实施例进行了详细说明,但是本领域的技术人员应该理解,以上例子仅是为了进行说明,而不是为了限制本申请的范围。本领域的技术人员应该理解,可在不脱离本申请的范围和精神的情况下,对以上实施例进行修改。本申请的范围由所附权利要求来限定。

Claims (11)

  1. 一种连接结构,其特征在于:包括第一本体(1)、第二本体(2)和双头卡钉(3);
    所述第一本体(1)和所述第二本体(2)均具有能够与所述双头卡钉(3)过盈配合的连接孔(4);
    所述双头卡钉(3)通过所述连接孔(4)分别于所述第一本体(1)及所述第二本体(2)连接。
  2. 根据权利要求1所述的一种连接结构,其特征在于:所述双头卡钉(3)上具有至少两个相对设置的凸起。
  3. 根据权利要求2所述的一种连接结构,其特征在于:所述凸起的纵截面为梯形。
  4. 根据权利要求2所述的一种连接结构,其特征在于:所述双头卡钉(3)为柱状,所述连接孔(4)为筒状,所述双头卡钉(3)截面的最大半径与所述连接孔(4)截面半径的比为:1:0.95-1:0.88。
  5. 根据权利要求2所述的一种连接结构,其特征在于:所述连接孔(4)内部设置卡接部(41),所述卡接部(41)突出于所述连接孔(4)内壁。
  6. 根据权利要求1所述的一种连接结构,其特征在于:所述双头卡钉(3)上具有倒刺。
  7. 根据权利要求6所述的一种连接结构,其特征在于:所述倒刺背向所述连接孔(4)的面与所述双头卡钉(3)的轴向方向的角度为5°-55°。
  8. 根据权利要求1所述的一种连接结构,其特征在于:所述第一本体(1)和所述第二本体(2)的连接孔(4)数量分别不少于两个。
  9. 根据权利要求1所述的一种连接结构,其特征在于:所述第一本体(1)和/或所述第二本体(2)的材质为塑料。
  10. 根据权利要求1所述的一种连接结构,其特征在于:所述双头卡钉(3)上设置挡片(31),所述连接孔(4)还包括能够容纳所述挡片(31)的腔体(5)。
  11. 根据权利要求1所述的一种连接结构,其特征在于:所述第一本体(1)为充电座前本体,所述第二本体(2)为充电座后本体。
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