WO2009039751A1 - Réceptacle métallique équipé - Google Patents

Réceptacle métallique équipé Download PDF

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Publication number
WO2009039751A1
WO2009039751A1 PCT/CN2008/072272 CN2008072272W WO2009039751A1 WO 2009039751 A1 WO2009039751 A1 WO 2009039751A1 CN 2008072272 W CN2008072272 W CN 2008072272W WO 2009039751 A1 WO2009039751 A1 WO 2009039751A1
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WO
WIPO (PCT)
Prior art keywords
metal
pin
contact piece
movable contact
sides
Prior art date
Application number
PCT/CN2008/072272
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English (en)
French (fr)
Inventor
Nanhao Cai
Original Assignee
Nanhao Cai
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 Nanhao Cai filed Critical Nanhao Cai
Publication of WO2009039751A1 publication Critical patent/WO2009039751A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • H01R24/78—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall with additional earth or shield contacts

Definitions

  • the present invention relates to the field of electrical accessory equipment, and more particularly to a metal electrical plug assembly of a multi-function socket.
  • the present invention is based on a Chinese utility model patent application filed on September 14, 2007, with the application number of 200720056988. 9, the content of which is incorporated herein by reference.
  • a conventional universal socket generally consists of a socket panel and a socket core mounted on the bottom of the socket panel.
  • the utility model mainly adopts a composite socket hole which is inserted through the socket panel and can be inserted into the pins of various types of plugs, and a socket core which is correspondingly provided with a pin for inserting various types of plugs on the socket core. And to achieve its versatility.
  • this type of socket is mainly composed of a plurality of elastic metal sheets due to the core of the socket core, and the elastic function of the metal elastic piece itself forms a clamping of the pins of the inserted plug to realize its conductive function, so that In the course of use, due to the frequent insertion and removal of the plug, the elastic metal piece is prone to fatigue and gradually loses its elasticity, and eventually causes problems such as poor contact and easy occurrence of electrical safety accidents.
  • the applicant's patent application with the National Intellectual Property Office of Application No. 200520120546. 7 discloses "a multi-functional socket electrical plug-in assembly" which mainly consists of a metal collar, a movable contact piece, a non-slip dislocation shaft, a bushing, and a spring.
  • movable contact piece support Although it does not lose its elasticity due to fatigue, its metal inserts are surrounded by four sides and consume a lot of materials.
  • the pins of the plugs When different pins are inserted, but the pins of the plugs are inserted, the pins are subjected to the spring force and there is no supporting step in the corresponding direction, which causes a problem that the pins are deformed after being inserted. Also, the pins of the housing socket are also worn when the pins are removed.
  • the object of the present invention is to solve the disadvantages of the current multi-function socket metal electrical plug component, the plug is easy to loose, and the movable contact piece is stuck, and a metal electrical plug component of a multi-function socket that overcomes the above problems is provided.
  • the utility model relates to a metal electric plug component of a multi-functional socket, which is mainly composed of a metal collar, a movable contact piece, a return spring and a pin, wherein: the metal ring is surrounded by three sides, wherein each of the two sides has a corresponding one a shaft hole, wherein the movable contact piece is a bent piece having a notched sleeve; the upper and lower ends of the three sides of the metal ring are outwardly bent; the movable contact piece is disposed through The pin of the two side shaft holes is movably hinged in the metal collar in the sleeve; the return spring ring is disposed on the pin, and the movable contact piece is pressed against the front end of the metal ring under the action of the return spring; The metal ring forms a notch into which various plug blades can be inserted from the upper and lower sides; one of the side ends is provided with a horizontal bar for connecting the wire tapping holes for the wires.
  • the metal collar is bent inward seven times between one side and the front end surface to form three small steps.
  • the front end surface of the metal collar has an inwardly bent support piece, and the support piece top supports the contact piece.
  • one end of the pin has a protruding shape step position for preventing the pin from coming off the shaft hole.
  • one end of the pin has a protruding position of a protrusion shape which prevents the pin from coming off the shaft hole.
  • the utility model has the beneficial effects that the metal electric plug component metal ring of the socket of the structure is surrounded by three sides, and the material is saved compared with the previous four sides; when the metal electric plug component and the matched insulating shell form the socket, the metal ring
  • the inwardly bent strips formed by the steps can clamp different types of plugs of different specifications; there is a stepped position at the end of the pin or a flat position of the pier to prevent the pin from coming off the shaft hole.
  • FIG. 1 is a schematic structural view of an L- and N-pole metal electrical insertion assembly of the present invention
  • FIG. 2 is a schematic view of another perspective view of the L- and N-pole metal electrical plug-in assembly of the present invention
  • FIG. 3 is a schematic structural view of the metal-electric plug-in assembly for an E-pole according to the present invention
  • FIG. 4 is a schematic view showing the assembly of the pin follower contact piece according to Embodiment 1 of the present invention
  • FIG. 5 is a schematic view showing the assembly of the pin follower contact piece according to Embodiment 2 of the present invention
  • FIG. 6 is a schematic structural view of the three-hole embodiment of the present invention.
  • Embodiment 1 As shown in Figures 1, 2, 3, 4, and 6:
  • the utility model relates to a metal electric plug component of a multi-functional socket, which is mainly composed of a metal collar 1, a movable contact piece 2, a return spring 3 and a pin 4, wherein the metal collar 1 is surrounded by three sides, wherein the two sides respectively have an axis a hole 11 , wherein the movable contact piece 2 is a bent piece having a notched sleeve 21; the upper and lower ends of the three sides of the metal ring 1 are outwardly bent portions 12; the bent portion 12 is When used in the socket, it effectively prevents the socket cover from blocking the plug and causes poor contact with the metal collar 1, and can effectively prevent the plug from being inserted.
  • the movable contact piece 2 is movably hinged in the metal collar 1 through the pin 4 which is disposed in the shaft hole of the two side holes; the return spring ring is disposed on the pin 4
  • the movable contact piece 2 abuts against the front end of the metal collar 1 under the action of the return spring 3; the movable contact piece 2 and the metal collar 1 form a notch into which various plug blades can be inserted from the upper and lower sides. 5;
  • One of the side ends is provided with a horizontal strip 6 for connecting the wire tapping holes 61 for the electric wires.
  • the metal collar 1 is bent inwardly seven times between one side surface and the front end surface to form three small steps; the first step 14 near the shaft side supports the movable contact piece 2, and the movable contact piece 2 and the front end
  • the face or the opposite side of the socket hole of the corresponding socket housing is maintained, which can effectively clamp the appropriate small distance of the diameter and width of the various plugs, and can easily insert small diameters and widths of various plugs.
  • the distance is used to reduce the clamping movement distance of the movable contact piece 2, and at the same time, although the front end surface and the movable contact piece are not in direct contact, the plug between the front end surface and the movable contact piece 2 can be effectively clamped to ensure good clamping.
  • the second step 15 supports the inch square pins inserted in position, and in turn the third step 16 supports the circular pins inserted into position, and the foremost support flat pins are inserted into position.
  • Such a metal electrical plug assembly is used for the L and N poles of the socket, as shown in Fig. 6, L and N poles 7.
  • the front end surface of the metal collar 1 has an inwardly bent support piece 13, and the support piece 13 supports the contact piece 2; the movable contact piece 2 and the front end face or the opposite side of the corresponding socket hole of the socket housing are held between
  • the utility model can effectively clamp the appropriate small distances of the diameters and widths of the various plugs, and can easily insert small distances of the diameter and the width of the various plugs, thereby reducing the clamping movement distance of the movable contact piece 2, and simultaneously Although the front end surface and the movable contact piece 2 are not in direct contact, the plug between the front end surface and the movable contact piece 2 can be effectively clamped, ensuring good performance. Clamp contact and conductivity.
  • Such a metal electrical plug assembly is used as the E pole of the socket, as shown in Figure 6 for the E pole 8.
  • the pin 4 has a protruding shape step 41 at one end for preventing the pin from coming off the shaft hole, and the step 41 prevents the pin 4 from coming off and prevents the friction between the movable contact 2 and the metal collar 1.
  • Embodiment 2 As shown in Figures 1, 2, 3, 5, and 6:
  • the utility model relates to a metal electric plug component of a multi-functional socket, which is mainly composed of a metal collar 1, a movable contact piece 2, a return spring 3 and a pin 4, wherein the metal collar 1 is surrounded by three sides, wherein the two sides respectively have an axis a hole 11 , wherein the movable contact piece 2 is a bent piece having a notched sleeve 21; the upper and lower ends of the three sides of the metal ring 1 are outwardly bent portions 12; the bent portion 12 is When used in the socket, it effectively prevents the socket casing from blocking the plug and causing poor contact with the metal collar 1.
  • the movable contact piece 2 is worn through two
  • the pin 4 of the side shaft hole is movably hinged in the metal collar 1 in the sleeve; the return spring ring is arranged on the pin 4, and the movable contact piece 2 is pressed by the return spring 3 to abut against the metal collar 1
  • the front end; the movable contact piece 2 and the metal retaining ring 1 constitute a notch 5 into which various plug blades can be inserted from the upper and lower sides; one of the side ends is provided with a horizontal bar 6 for connecting the wire tapping holes 61 for the electric wires. .
  • the metal collar 1 is bent inwardly seven times between one side surface and the front end surface to form three small steps; the first step 14 near the shaft side supports the movable contact piece 2, and the movable contact piece 2 and the front end
  • the face or the opposite side of the socket hole of the corresponding socket housing is maintained, which can effectively clamp the appropriate small distance of the diameter and width of the various plugs, and can easily insert small diameters and widths of various plugs.
  • the support inch square pins are inserted into position, and in turn the third step 16 supports the circular pins inserted into position, and the foremost support flat pins are inserted into position.
  • Such a metal electrical plug assembly is used for the L and N poles of the socket, as shown in Fig. 6, L and N poles 7.
  • the front end surface of the metal collar 1 has an inwardly bent support piece 13 , and the support piece 13 supports the contact piece 2 at the top; such that the movable contact piece 2 and the front end face or the opposite side of the socket hole of the corresponding socket housing are held,
  • the utility model can effectively clamp the appropriate small distances of the diameters and widths of the various plugs, and can easily insert small distances of the diameter and the width of the various plugs, thereby reducing the clamping movement distance of the movable contact piece 2, and simultaneously Although the front end surface and the movable contact piece 2 are not in direct contact, the plug between the front end surface and the movable contact piece 2 can be effectively clamped to ensure good clamping contact and electrical conductivity.
  • Such a metal electrical plug assembly is used as the E pole of the socket, as shown in Fig. 6 for the E pole 8.
  • One end of the pin 4 has a protruding flat position 42 for preventing the pin from coming off the shaft hole; the flat position 42 prevents the pin 4 from coming off and prevents the friction between the movable contact 2 and the metal ring 1.
  • the metal electric plug component metal ring of the invention is surrounded by three sides, compared with the previous four sides
  • the inwardly bent strip of the metal collar can clamp different standard different plugs; there is a step at one end of the pin Or the flat position of the pier prevents the pin from coming off the shaft hole.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

一种金属插座组件
技术领域
本发明涉及电器附属设备领域，特别是一种多功能插座的金属 电插组件。 本发明基于申请日为 2007 年 9 月 14 日、 申请号为 200720056988. 9 的中国实用新型专利申请， 该申请的内容作为参 考引入本文。
背景技术 现有的通用型插座，一般由插座面板及装置于插座面板底部的 插座芯组成。其主要是通过插座面板上设置有可供各种不同型号的 插头的插脚插入的复合型插座孔，以及其插座芯上对应地设置有可 供各种不同型号的插头的插脚嵌插的座芯而实现其通用性的。 然 而， 目前这种类型插座由于其插座芯的座芯主要由多块弹性金属片 围成，并靠金属弹片自身的弹性形成对被插入的插头的插脚的夹紧 来实现其导电功能的， 使得其在使用过程中， 因被插头的经常插、 拔， 使弹性金属片容易产生疲劳而渐失弹性， 并最终导致其存在接 触不良、 容易引发用电安全事故等问题。 本申请人向国家知识产权局提出申请号为 200520120546. 7的 专利申请公开了 "一种多功能插座电插组件"， 其主要由金属围圈、 活动接触片、 防滑脱位轴、轴套、弹簧、活动接触片支承、 固定夹、 接线端子、切口围圈结构构成。虽然不会因为产生疲劳而渐失弹性， 但是其电插组件金属围圈为四面包围状， 耗费材料很多； 虽然能适 合不同的插头但是有的插头的插脚插入时，插脚受弹簧力而没有对 应方向的支承台阶而，导致了插脚插进去后变形的问题。 还有， 插 脚拔插时也会磨损外壳插座孔边。
发明内容
本发明的目的为了解决目前多功能插座金属电插组件材耗大， 插头易松脱， 活动接触片卡滞的缺点， 而提供一种克服以上问题的 一种多功能插座的金属电插组件。
为达到上述目的采用如下技术方案：
一种多功能插座的金属电插组件，它主要由金属围圈、动触片、 复位弹簧及销钉组成， 其特征在于： 其中所述金属围圈由三面合围 成， 其中两侧面相对应各有一轴孔， 其中所述动触片为有带缺口轴 套的弯折片； 所述金属围圈的三面的上、 下两端都向外的弯折部； 所述动触片通过穿设在两侧面轴孔的销钉在轴套内活动地铰接于 金属围圈内； 所述复位弹簧圈设在销钉上， 动触片在复位弹簧作用 下， 紧靠在金属围圈的前端； 动触片跟金属围圈构成了从上下两边 面方向均可插入各种插头插片的槽口；其中一侧面末端设置有连接 电线用的接线攻丝孔的横条。
其中所述金属围圈在一侧面与前端面之间， 向内弯折七次，形 成的三个小台阶。
其中所述金属围圈前端面有一向内弯折的支承片，支承片顶支 动触片。
其中所述销钉一端有防止销钉脱离轴孔的突起形状台阶位。 其中所述销钉一端有防止销钉脱离轴孔的突起形状的墩扁位。 本发明的有益效果在于：这样结构的插座的金属电插组件金属 围圈由三面围成， 比较以前四面合围节省材料； 这样的金属电插组 件跟相匹配的绝缘外壳组成插座时，金属围圈向内的由台阶位成的 弯折带可以夹住不同标准不同规格的插头；在销钉一端有台阶位或 墩扁位防止销钉脱离轴孔的现象。
附图说明
图 1为本发明的 L、 N极金属电插组件结构示意图；
图 2为本发明的 L、 N极金属电插组件另一视角结构示意图； 图 3为本发明的 E极用金属电插组件结构示意图；
图 4为本发明的实施例 1的销钉跟动触片装配示意图； 图 5为本发明的实施例 2的销钉跟动触片装配示意图； 图 6为本发明的三孔实施例结构示意图。
具体实施方式
下面结合附图对本发明作进一步的说明：
实施例 1 : 如附图 1、 2、 3、 4、 6所示：
一种多功能插座的金属电插组件， 它主要由金属围圈 1、 动触 片 2、 复位弹簧 3及销钉 4组成， 其中金属围圈 1由三面合围成， 其中两侧面相对应各有一轴孔 11， 其中所述动触片 2为有带缺口 轴套 21的弯折片； 所述金属围圈 1的三面的上、 下两端都向外的 弯折部 12; 弯折部 12在插座中使用时， 有效防止插座外壳遮挡插 头造成跟金属围圈 1的接触不良，还可以有效的防止插头在插入插 座时对插座外壳的插伤， 刮花； 动触片 2通过穿设在两侧面轴孔的 销钉 4在轴套内活动地铰接于金属围圈 1内；所述复位弹簧圈设在 销钉 4上， 动触片 2在复位弹簧 3作用下， 紧靠在金属围圈 1的前 端；动触片 2跟金属围圈 1构成了从上下两边面方向均可插入各种 插头插片的槽口 5; 其中一侧面末端设置有连接电线用的接线攻丝 孔 61的横条 6。
金属围圈 1在一侧面与前端面之间， 向内弯折七次，形成的三 个小台阶； 靠近轴侧的第一个台阶 14是支承动触片 2， 使动触片 2 和前端面或其对应插座外壳的插座孔的对面边之间保持着，既能有 效地夹住各种插头的直径和宽度的适当的小距离，又能可方便插入 各种插头的直径和宽度的小距离，以此来减少动触片 2的夹动运动 距离， 同时虽然前端面和动触片没有直接接触， 但能有效夹住前端 面和动触片 2之间的插头， 保证良好的夹紧接触性及导电性； 接着 按顺序第二个台阶 15支承英制式方形插脚插入到位， 按顺序第三 个台阶 16支承圆形插脚插入到位，最前端支承扁形插脚插入到位。 这样的金属电插组件用做插座的 L、 N极用， 如图 6所示 L、 N极 7。
金属围圈 1前端面有一向内弯折的支承片 13， 支承片 13顶支 动触片 2; 这样动触片 2和前端面或其对应插座外壳的插座孔的对 面边之间保持着，既能有效地夹住各种插头的直径和宽度的适当的 小距离， 又能可方便插入各种插头的直径和宽度的小距离， 以此来 减少动触片 2的夹动运动距离，同时虽然前端面和动触片 2没有直 接接触， 但能有效夹住前端面和动触片 2之间的插头， 保证良好的 夹紧接触性及导电性。这样的金属电插组件用做插座的 E极用， 如 图 6所示 E极 8。
销钉 4一端有防止销钉脱离轴孔的突起形状台阶位 41， 台阶位 41可以防止销钉 4脱落以及防止动触片 2跟金属围圈 1间的摩擦。
实施例 2 : 如附图 1、 2、 3、 5、 6所示：
一种多功能插座的金属电插组件， 它主要由金属围圈 1、 动触 片 2、 复位弹簧 3及销钉 4组成， 其中金属围圈 1由三面合围成， 其中两侧面相对应各有一轴孔 11， 其中所述动触片 2为有带缺口 轴套 21的弯折片； 所述金属围圈 1的三面的上、 下两端都向外的 弯折部 12 ; 弯折部 12在插座中使用时， 有效防止插座外壳遮挡插 头造成跟金属围圈 1的接触不良，还可以有效的防止插头在插入插 座时对插座外壳的插伤， 刮花； 动触片 2通过穿设在两侧面轴孔的 销钉 4在轴套内活动地铰接于金属围圈 1内；所述复位弹簧圈设在 销钉 4上， 动触片 2在复位弹簧 3作用下， 紧靠在金属围圈 1的前 端；动触片 2跟金属围圈 1构成了从上下两边面方向均可插入各种 插头插片的槽口 5; 其中一侧面末端设置有连接电线用的接线攻丝 孔 61的横条 6。
金属围圈 1在一侧面与前端面之间， 向内弯折七次，形成的三 个小台阶； 靠近轴侧的第一个台阶 14是支承动触片 2， 使动触片 2 和前端面或其对应插座外壳的插座孔的对面边之间保持着，既能有 效地夹住各种插头的直径和宽度的适当的小距离，又能可方便插入 各种插头的直径和宽度的小距离，以此来减少动触片 2的夹动运动 距离， 同时虽然前端面和动触片没有直接接触， 但能有效夹住前端 面和动触片 2之间的插头， 保证良好的夹紧接触性及导电性； 接着 按顺序第二个台阶 15支承英制式方形插脚插入到位， 按顺序第三 个台阶 16支承圆形插脚插入到位，最前端支承扁形插脚插入到位。 这样的金属电插组件用做插座的 L、 N极用， 如图 6所示 L、 N极 7。
金属围圈 1前端面有一向内弯折的支承片 13， 支承片 13顶支 动触片 2 ; 这样动触片 2和前端面或其对应插座外壳的插座孔的对 面边之间保持着，既能有效地夹住各种插头的直径和宽度的适当的 小距离， 又能可方便插入各种插头的直径和宽度的小距离， 以此来 减少动触片 2的夹动运动距离，同时虽然前端面和动触片 2没有直 接接触， 但能有效夹住前端面和动触片 2之间的插头， 保证良好的 夹紧接触性及导电性。这样的金属电插组件用做插座的 E极用， 如 图 6所示 E极 8。
销钉 4一端有防止销钉脱离轴孔的突起形状的墩扁位 42 ; 墩 扁位 42可以防止销钉 4脱落以及防止动触片 2跟金属围圈 1间的 摩擦。
当然， 以上所述之实施例， 只是本发明的较佳实例而已， 并非 来限制本发明实施范围， 故凡依本发明申请专利范围所述的构造、 特征及原理所做的等效变化或修饰，均包括于本发明申请专利范围 内。 工业应用性
本发明的金属电插组件金属围圈由三面围成，比较以前四面合 围节省材料； 这样的金属电插组件跟相匹配的绝缘外壳组成插座 时，金属围圈向内的由台阶位成的弯折带可以夹住不同标准不同规 格的插头； 在销钉一端有台阶位或墩扁位防止销钉脱离轴孔的现 象。

Claims

权 利 要 求 书
1、 一种多功能插座的金属电插组件， 它主要由金属围圈（1)、 动触片 (2)、 复位弹簧 (3)及销钉 (4)组成， 其特征在于： 其中所述 金属围圈（1)由三面合围成， 其中两侧面相对应各有一轴孔（11)， 其中所述动触片 (2)为有带缺口轴套 (21)的弯折片； 所述金属围圈 (1)的三面的上、下两端都向外的弯折部（12) ; 所述动触片 (2)通过 穿设在两侧面轴孔（11)的销钉 (4)在轴套内活动地铰接于金属围圈 (1)内； 所述复位弹簧 (3)圈设在销钉 (4)上， 动触片 (2)在复位弹簧 (3)作用下， 紧靠在金属围圈（1)的前端； 动触片 (2)跟金属围圈（1) 构成了从上下两边面方向均可插入各种插头插片的槽口（5)； 其中 一侧面末端设置有连接电线用的接线攻丝孔 (61)的横条 (6)。
2、 根据权利要求 1所述的一种多功能插座的金属电插组件， 其特征在于： 所述金属围圈（1)在一侧面与前端面之间， 向内弯折 七次， 形成的三个小台阶。
3、 根据权利要求 1所述的一种多功能插座的金属电插组件， 其特征在于：所述金属围圈（1)前端面有一向内弯折的支承片（13)， 支承片（13)顶支动触片（2)。
4、 根据权利要求 1所述的一种多功能插座的金属电插组件， 其特征在于： 所述销钉 (4)一端有防止销钉脱离轴孔的突起形状台 阶位 (41)。
5、 根据权利要求 1所述的一种多功能插座的金属电插组件， 其特征在于： 所述销钉 (4)一端有防止销钉脱离轴孔的突起形状的
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CN107688108A (zh) * 2017-08-24 2018-02-13 国网江苏省电力公司宝应县供电公司 一种电表的接线组件
CN107688108B (zh) * 2017-08-24 2023-09-05 国网江苏省电力有限公司宝应县供电分公司 一种电表的接线组件

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