WO2020024700A1 - 电能表用夹紧检测装置 - Google Patents

电能表用夹紧检测装置 Download PDF

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Publication number
WO2020024700A1
WO2020024700A1 PCT/CN2019/090177 CN2019090177W WO2020024700A1 WO 2020024700 A1 WO2020024700 A1 WO 2020024700A1 CN 2019090177 W CN2019090177 W CN 2019090177W WO 2020024700 A1 WO2020024700 A1 WO 2020024700A1
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WIPO (PCT)
Prior art keywords
clamping
energy meter
electric energy
arm
base
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PCT/CN2019/090177
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English (en)
French (fr)
Inventor
张涛
易鑫
戚凯
周亚楠
李川
盛琰
张超
李洋
Original Assignee
河南许继仪表有限公司
许继集团有限公司
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Publication of WO2020024700A1 publication Critical patent/WO2020024700A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/04—Housings; Supporting members; Arrangements of terminals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/04—Housings; Supporting members; Arrangements of terminals
    • G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0425—Test clips, e.g. for IC's
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/04—Housings; Supporting racks; Arrangements of terminals

Definitions

  • the invention relates to a clamping detection device for an electric energy meter.
  • the three-phase smart meter After the three-phase smart meter has run for a certain number of years, it needs to be removed for sub-inspection, that is, to check whether the performance indicators of the meter are qualified. In the process, it is necessary to position and compact the three-phase energy meter, and The energy meter is connected to a power-on device to achieve power. In the prior art, when the energy meter is sorted, it is often necessary to manually position and compact the three-phase energy meter, and then send it to the power-on device for power-on detection. Such an operation process is relatively labor-intensive and the detection efficiency is low.
  • the purpose of the present invention is to provide a clamping detection device for an electric energy meter, so as to solve the problems of low detection efficiency and waste of manpower of the electric energy meter in the prior art.
  • the technical solution of the clamping detection device for an electric energy meter of the present invention is:
  • the clamping detection device for an electric energy meter includes a base, and a positioning member for positioning the electric energy meter is mounted on the front and rear guides of the base, and the positioning member further has limit positions for blocking the electric energy meter at both sides perpendicular to the front-rear direction.
  • An arm, the base is also movably equipped with two clamping arms that abut against the opposite sides of the two limit arms, and the base is also provided with a direction for applying the clamping arm in a direction toward the limit arms
  • the force applying mechanism of the moving force, the clamping arm is driven by the force applying mechanism during the stroke of the positioning member to move forward and backward, and has an arm clamping position that cooperates with the limit arm, and also has a relative disengagement from the limit arm. And it is used for the clamping position of the meter with the opposite side clamping of the electric energy meter.
  • a hinge rod is articulated on the base on the opposite sides of the positioning member, and one end of the hinge rod extends toward the limit arm to constitute the clamping arm, and the application
  • the force mechanism has a force applying part which is driven to cooperate with the other end of the hinged rod to swing the hinged rod.
  • the force applying mechanism includes a bottom plate slidingly assembled with the base, and the bottom plate is driven to cooperate with the other ends of the two articulated rods during the moving stroke to rotate and clamp the corresponding articulated rods.
  • the part of the bottom plate that cooperates with the hinge rod constitutes the urging portion, and the urging mechanism further includes a driving structure for driving the bottom plate to slide.
  • the bottom plate slides upwardly and cooperates with the hinge rod transmission to make the hinge rod rotate to clamp the positioning member.
  • the driving structure includes being disposed between the base plate and the bottom plate and exerting an upward action on the bottom plate. Driving spring.
  • the base has guide bars extending up and down, the bottom plate is worn on the guide bar, the lower end of the guide bar is provided with a limit step, and the driving spring is sleeved on the guide bar and pressed against the bottom plate. Compression spring with limit step.
  • the bottom plate includes a bottom plate body and a link hinged to the bottom plate body, and the link is hingedly connected to the hinge rod to form the force applying portion.
  • the base is also provided with a power-on structure for electrically connecting with the energy meter when the clamping arm is in the meter clamping position.
  • the rear end of the limit arm has a guide surface that extends from the outer surface of the limit arm to the inner side and is inclined backward, and the clamping of the guide surface and the clamping arm The part guide cooperates to switch the clamping arm between the table clamping position and the arm clamping position.
  • the clamping portion is formed by a roller provided at an end portion of the clamping arm.
  • the base is further provided with a screw nut mechanism for driving the positioning member to move forward and backward.
  • the beneficial effect of the present invention is that, compared with the prior art, the clamping detection device for an electric energy meter according to the present invention is provided with a positioning member on the base and a clamping arm that cooperates with a limiting arm of the positioning member.
  • the clamping arm can be pressed against the positioning member by the effect of the force applying mechanism, the energy meter is positioned and clamped by the positioning member, and the clamping arm is moved when the energy meter is moved to the detection position.
  • the relative limit arm moves and is separated from the limit arm and clamped on the energy meter to ensure that the energy meter can be effectively clamped.
  • the force exerted on the clamping arm by the force of the structure After the clamping arm is released from the clamping arm, it can be clamped with the energy meter. This can ensure that the energy meter can be replaced only by the movement of the positioning member and the power can be detected when the power is detected after the replacement.
  • the clamping of the watch is simple.
  • FIG. 1 is a schematic structural diagram of a specific embodiment of a clamping detection device for an electric energy meter according to the present invention
  • FIG. 2 is a top view of a mating state of the positioning member and the clamping arm of FIG. 1.
  • the clamping detection device includes a base 1, a positioning member 2, a clamping arm 31, a force applying mechanism, and the like.
  • the base 1 is a mounting carrier for other components.
  • the other components mentioned above are all mounted on the base 1.
  • the base 1 has a groove.
  • the groove extends in the front-rear direction.
  • the left and right side walls of the groove are connected with flat plate sections extending horizontally opposite to each other.
  • the above-mentioned positioning member 2 is slidably mounted on the base 1 and directly above the groove.
  • the above-mentioned clamping arm 31 The hinge is hinged on the plate section, and the force applying mechanism is arranged directly under the groove.
  • the specific structure of the base 1 is not limited, and those skilled in the art may design arbitrarily according to actual conditions.
  • the positioning member 2 in this embodiment, it is a plate structure.
  • the positioning member 2 includes a bottom support plate, and limit arms 21 connecting the left and right sides of the bottom support plate.
  • the limit arms 21 are extended in the front-rear direction. Connect the front connecting plates of the limit arms 21 on the left and right sides, so that a positioning slot can be formed by the bottom support plate, the limiting arm 21 and the front connecting plate.
  • the above-mentioned electric energy meter can be positioned in the positioning slot and positioned. . In the actual use process, the orientation and position of the energy meter are ensured through the positioning of the positioning member 2, which can correspond to the insertion position of the power-on structure 13 on the front side and prevent mis-insertion.
  • the positioning member 2 is slidingly assembled on the base 1 in the front-rear direction, and a power-on structure 13 is provided on the front side of the base 1.
  • the positioning member 2 can forward and power-up the structure during the forward-backward movement stroke.
  • the 13 connection is turned on and disconnected from the power-on structure 13 backward.
  • the base 1 is further provided with a screw nut mechanism 11 for driving the positioning member 2 to move forward and backward.
  • an external control motor 12 is operated to drive the positioning member 2 to move forward or backward.
  • the ends of the flat plate sections on the left and right sides of the base 1 are hinged with a hinge rod 3, the axis of the hinge rod 3 extends in the front-rear direction, and the upper end of the hinge rod 3 and The positioning members 2 cooperate with each other to form a clamping arm 31.
  • the clamping arms 31 of the two articulated rods 3 swing toward each other and abut against the opposite sides of the corresponding limit arms 21 respectively, so that the positioning members 2 can be clamped. Tightly fixed.
  • a force applying structure for applying a force for relatively clamping the clamping arm 31 to the hinge rod 3 is connected to the lower end of the hinge rod 3. The force applying mechanism keeps the clamping arm 31 in the approaching trend at all times, thereby ensuring the clamping effect.
  • the clamping arm 31 in order to realize that the energy meter can be clamped by the clamping arm 31 during the movement of the positioning member 2 and positioned by the positioning member 2 at the power-on position, in this embodiment, the clamping arm 31 It only fits against the limit arm 21, and at the same time, during the process of the positioning member 2 moving forward, the clamping arm 31 has an arm clamping position for clamping and matching with the limit arm 21, and also has a limit arm 21 is relatively detached and is used for the clamping position of the meter to match the opposite side of the meter. That is to say, the length of the limit arm 21 is shorter than the length of the corresponding meter, so that the rear end of the meter can protrude from the positioning.
  • the clamping arm 31 first fits against the limit arm 21, and after moving a certain position, the clamping arm 31 fits against the energy meter The energy meter is clamped and fixed.
  • the limit arm 21 is located outside the energy meter, in order to achieve the switching stability of the clamping arm 31 at the switching position between the arm clamping position and the meter clamping,
  • the front end of the clamping arm 31 is provided with a roller 9, and the roller 9 is in the front-rear direction. Moving, so that a rolling friction therebetween, switching good stability.
  • the rear end surface of the limit arm 21 is set as a guide surface that gradually slopes backwards from the outside to the inside, so that the instability of the clamping arm 31 during the switching process due to the thickness of the limit arm 21 can be avoided.
  • the guide surface is a concave curved surface facing the positioning of the energy meter, and the transition of the roller 9 is more stable.
  • the clamping arm 31 can self-adjust the opening angle to clamp the positioning member 2 and the energy meter 10.
  • the urging mechanism is an elastic urging mechanism for applying an elastic force to the hinge rod 3 to automatically adjust the yaw angle of the hinge rod 3.
  • the urging mechanism has a urging portion that is driven to cooperate with the lower end of the articulated rod 3 to swing the articulated rod 3.
  • the force applying mechanism includes a bottom plate 4 that cooperates with sliding down on the base 1. During the moving stroke of the bottom plate 4, the bottom plate 4 is driven to cooperate with the lower ends of the two hinged rods 3 to synchronously swing the two hinged rods 3 toward each other or to each other.
  • the part where the rod 3 is fitted forms an urging portion.
  • a guide rod 5 is extended downward on the lower plate surface of the base 1.
  • the above-mentioned bottom plate 4 is threaded on the guide rod 5 and is guided to slide with the guide rod 5 in the up-down direction.
  • a limit nut 7 is fixed at the lower end of the guide rod 5, and the upper end of the limit nut 7 forms a limit step.
  • the driving structure is formed by a compression spring 6 that is pressed between the bottom plate 4 and the limit nut 7, In the working process, the compression spring 6 is pushed toward the bottom plate 4 so that the bottom plate 4 is always moving upward.
  • the bottom plate 4 cooperates with the lower end of the hinge rod 3 to keep the lower end of the hinge rod 3 away from the back and the corresponding upper end is relatively close to achieve
  • the clamping arms 31 of the two articulated rods 3 are clamped relatively close together.
  • the drive motor 12 moves, thereby driving the positioning member 2 forward and backward.
  • the clamping arm 31 can always be relatively close to each other under the action of the compression spring 6 in this way. 2
  • the clamping arm 31 is separated from the limit arm 21 of the positioning member 2 and is clamped and fixed with the energy meter 10 through the urging force of the compression spring 6.
  • the structure is relatively simple.
  • the lower end of the hinge rod 3 and the bottom plate 4 are connected by a connecting rod 8 to realize transmission.
  • the end of the connecting rod 8 connected to the hinged rod 3 constitutes a urging portion.
  • the motor drives the positioning member to move forward, and the roller slides along the arc-shaped guide surface of the limit arm toward the energy meter.
  • the clamping arm is clamped against the back of the energy meter. Both sides; after the detection is completed, the motor-driven positioning member moves backward.
  • the hinge rod expands around the hinge point, and the roller rolls along the arc guide surface to the limit arm of the positioning member.
  • the roller loosens the clamping and fixing of the energy meter, and the energy meter is also separated from the power-on structure. The energy meter can be freely picked and placed, and the detected energy meter can be taken away. And proceed to the next cycle.
  • the articulated rod may be provided with a left and right sliding pushing piston rod on the base, and the pushing is achieved by pneumatic or hydraulic movement.
  • the two articulated rods may be respectively configured with respective driving structures and a bottom plate for driving.
  • the driving structure may include a bottom plate and a cam that cooperates with the bottom plate, and a torsion spring is provided on the cam to enable the cam to have a tendency to rotate to push the bottom plate.
  • the compression spring may also be a structure such as a tension spring provided between the base and the bottom plate.
  • the connecting rod may not be provided, and the plate end of the bottom plate may be directly pushed to the lower end side wall of the hinge rod to swing the hinge rod.
  • the wall thickness of the limiting arm can be set to be thin, and no guide surface needs to be provided at this time. Or set the guide surface as a wedge-shaped surface.
  • the movement of the positioning member may be controlled manually.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Clamps And Clips (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

一种电能表用夹紧检测装置，包括底座（1），底座（1）上前后导向移动装配有用于定位电能表的定位件（2），定位件（2）还具有用于挡设在电能表的垂直于前后方向的两侧的限位臂（21），底座（1）上还活动装配有两个分别抵顶在两个限位臂（21）的相背外侧的夹紧臂（31），底座（1）上还设有用于向夹紧臂（31）施加沿朝向限位臂（21）的方向移动的作用力的施力机构，夹紧臂（31）在定位件（2）前后移动的行程中受施力机构的驱动具有与限位臂（21）夹紧配合的臂夹紧位以及与限位臂（21）相对脱离与电能表的相背外侧夹紧配合的表夹紧位，仅仅通过定位件（2）的移动便可以实现对电能表的更换以及更换后上电检测时对电能表的夹紧，结构比较简单。

Description

电能表用夹紧检测装置 技术领域
本发明涉及一种电能表用夹紧检测装置。
背景技术
三相智能电表运行到一定的年限后，需要拆下分检，即检查一下电表的各项性能指标是否合格，而在此过程中，需要对三相电能表进行定位压紧，并将三相电能表连接至上电装置上实现通电。现有技术中对电能表进行分检时，常常需要人工将三相电能表定位压紧，然后再送至上电装置处进行上电检测，这样的操作过程比较浪费人力，检测效率较低。
发明内容
本发明的目的在于提供一种电能表用夹紧检测装置，以解决现有技术中电能表检测效率低、浪费人力的问题。
为实现上述目的，本发明的电能表用夹紧检测装置的技术方案是：
电能表用夹紧检测装置，包括底座，底座上前后导向移动装配有用于定位电能表的定位件，所述定位件还具有用于挡设在电能表的垂直于前后方向的两侧的限位臂，所述底座上还活动装配有两个分别抵顶在两个限位臂的相背外侧的夹紧臂，所述底座上还设有用于向夹紧臂施加沿朝向限位臂的方向移动的作用力的施力机构，所述夹紧臂在定位件前后移动的行程中受施力机构的驱动具有与限位臂夹紧配合的臂夹紧位，还具有与限位臂相对脱离并用于与电能表的相背外侧夹紧配合的表夹紧位。
进一步的，为了结构更加紧凑，装配方便，所述底座上位于定位件的相背两侧外均铰接有铰接杆，铰接杆的一端朝向限位臂延伸而构成所述夹紧臂，所述施力机构具有与铰接杆的另一端传动配合而使铰接杆摆动的施力部。
进一步的，为了实现驱动的同步性，所述施力机构包括与底座滑移装配的底板，底板在移动行程中与两个铰接杆的另一端传动配合而使对应的铰接杆转动并夹紧定位件，底板的与铰接杆配合的部分构成所述施力部，所述施力机构还包括驱动底板滑移的驱动结构。
进一步的，为了实现驱动力的连续性，定义底板向上滑移与铰接杆传动配合使铰接杆转动以夹紧定位件，所述驱动结构包括设置在底座和底板之间并向底板施加向上的作用力的驱动弹簧。
进一步的，为了装配方便，所述底座上具有上下延伸的导杆，底板穿装在导杆上，导杆的下端设有限位台阶，驱动弹簧为套设在导杆上并顶压设置在底板与限位台阶之间的压簧。
进一步的，为了传动更加精准，所述底板包括底板本体和与底板本体铰接的连杆，所述连杆与铰接杆铰接连接而构成所述施力部。
进一步的，为了实现对电能表的上电，所述底座上还设有在夹紧臂处于表夹紧位时用于与电能表电连接的上电结构。
进一步的，为了方便夹紧臂的位置切换，所述限位臂的后端具有由限位臂的外侧面向内侧面延伸并向后倾斜的引导面，所述引导面与夹紧臂的夹紧部导向配合以使夹紧臂在表夹紧位和臂夹紧位之间切换。
进一步的，为了减少滑动摩擦导致的磨损，所述夹紧部由设置在夹紧臂端部的滚轮形成。
进一步的，为了实现定位件的自动驱动，所述底座还设有用于驱动定位件前后移动的丝杆螺母机构。
本发明的有益效果是：相比于现有技术，本发明所涉及的电能表用夹紧检测装置，通过在底座上设置定位件，并设置与定位件的限位臂配合的夹紧臂，这样能够在实际的使用过程中，通过施力机构的作用使夹紧臂能够压紧在定位件上，通过定位件将电能表定位夹紧，并在电能表移动到检测位置时，夹紧臂相对限位臂移动并与限位臂脱离夹紧在电能表上，保证电能表能够被有效的夹紧，同时，在定位件移动的过程中，施力结构作用于夹紧臂上的作用力能够在夹紧臂脱离对限位臂的夹持后，实现与电能表的夹紧，这样就能够保证仅仅通过定位件的移动便可以实现对电能表的更换以及更换后上电检测时对电能表的夹紧，结构比较简单。
附图说明
图1为本发明的电能表用夹紧检测装置的具体实施例结构示意图；
图2为图1的定位件与夹紧臂配合状态的俯视图。
附图标记说明：1-底座；2-定位件；3-铰接杆；4-底板；5-导杆；6-压簧；7-限位螺母；8-连杆；9-滚轮；10-电能表；11-丝杆螺母机构；12-电机；13-上电结构；21-限位臂；31-夹紧臂。
具体实施方式
下面结合附图对本发明的实施方式作进一步说明。
本发明的电能表用夹紧检测装置的具体实施例，如图1至图2所示，该夹紧检测装置包括底座1、定位件2、夹紧臂31、施力机构等，其中对于底座1来说，其为板型结构，在本实施例中，底座1为其他零部件的安装载体，上述的其他零部件均安装在底座1上，在本实施例中，底座1上具有凹槽，凹槽沿前后方向延伸，凹槽的左右两侧壁连接有相背水平延伸的平板段，上述的定位件2滑动装配在底座1上并位于凹槽的正上方，上述的夹紧臂31铰接在平板段上，施力机构设置在凹槽的正下方。当然，在其他实施例中，底座1的具体结构不做限定，本领域技术人员可以根据实际情况任意设计。
对于定位件2来说，在本实施例中，其为板型结构，定位件2包括底部支撑板、连接底部支撑板的左右两侧的限位臂21，限位臂21沿前后方向延伸设置，连接左右两侧的限位臂21的前侧连接板，这样能够通过底部支撑板、限位臂21和前侧连接板合围形成一个定位槽，上述的电能表能够放置在定位槽内被定位。在实际的使用过程中，通过定位件2的定位保证电能表的朝向和位置，这样能够与前侧的上电结构13的插装位置对应，防止偏插。同时，本实施例中，定位件2沿前后方向滑动装配在底座1上，同时在底座1的前侧设置有上电结构13，定位件2在前后移动的行程中能够向前与上电结构13连接导通，向后与上电结构13脱离。在本实施例中，底座1上还设有用于驱动定位件2前后移动的丝杆螺母机构11，在工作时，通过外接控制电机12动作，进而带动定位件2朝前或朝后移动。
对于夹紧臂31来说，在本实施例中，底座1的左右两侧的平板段的端部均铰接有铰接杆3，铰接杆3的轴线沿前后方向延伸，同时铰接杆3的上端与定位件2抵顶配合而构成夹紧臂31，两个铰接杆3的夹紧臂31相向摆动而分别抵顶在对应的限位臂21的相背两侧面上，这样能够将定位件2夹紧固定。同时在铰接杆3的下端连接有用于向铰接杆3施加使夹紧臂31相对夹紧的作用力的施力 结构。通过施力机构使得夹紧臂31时刻处于相向靠近趋势中，进而保证夹紧效果。
同时在本实施例中，为了实现电能表在跟随定位件2移动的过程中能够被夹紧臂31夹紧，并被定位件2定位在上电位置，在本实施例中，夹紧臂31与限位臂21之间仅仅是抵顶配合，同时在定位件2朝前移动的过程中，夹紧臂31具有与限位臂21夹紧配合的臂夹紧位，还具有与限位臂21相对脱离并用于与电能表的相背外侧夹紧配合的表夹紧位，也就是说限位臂21的前后长度要小于对应的电能表的长度，使电能表的后端能够突出于定位件2，这样能够在定位件2带动电能表朝前移动的过程中，夹紧臂31先与限位臂21抵顶配合，在移动一定的位置后，夹紧臂31与电能表抵顶配合是电能表被夹持固定，同时，由于限位臂21位于电能表的外侧，为了实现在臂夹紧位和表夹紧之间的切换位置处，夹紧臂31切换的稳定性，在本实施例中，夹紧臂31的前端具有滚轮9，滚轮9沿前后方向滚动，使得二者之间形成滚动摩擦，切换稳定性较好。同时，将限位臂21的后端端面设置为由外向内逐渐向后倾斜的引导面，这样能够避免由于限位臂21的厚度较厚导致的切换过程中夹紧臂31的不稳定性。在本实施例中，引导面为朝向电能表定位一侧内凹的弧形面，滚轮9过渡更加平稳。
为了实现在定位件2移动的过程中，夹紧臂31能够自我调整张开的角度，以夹紧定位件2和夹紧电能表10。在本实施例中，施力机构为用于向铰接杆3施加弹性力使铰接杆3自动调整偏摆角度的弹性施力机构。施力机构具有与铰接杆3的下端传动配合而使铰接杆3摆动的施力部。施力机构包括与底座1上下滑移配合的底板4，在底板4的移动行程中与两个铰接杆3的下端传动配合而使两个铰接杆3同步相对或相向摆动，底板4的与铰接杆3配合的部分形成施力部。
在本实施例中，为了简化结构，在底座1的下板面上向下延伸设置有导杆5，上述的底板4穿装在导杆5上，并与导杆5沿上下方向导向滑移配合，同时在导杆5的下端固定有限位螺母7，该限位螺母7的上端构成了限位台阶，驱动结构由顶压设置在底板4与限位螺母7之间的压簧6形成，在工作过程中，压簧6朝向底板4顶推，使底板4一直处于向上移动的趋势，底板4与铰接杆3的下端配合使铰接杆3的下端向背远离，对应的上端相对靠近，进而实现两个铰接杆3的夹紧臂31的相对靠近夹紧。这样在实际的操作过程中，驱动电机12动作，进 而带动定位件2前后移动，在前后移动的过程中，夹紧臂31受压簧6的作用能够时刻处于相对靠近的状态，这样在定位件2移动时，夹紧臂31与定位件2的限位臂21脱离，并与电能表10通过压簧6的施力作用实现夹紧固定。结构比较简单。
同时，铰接杆3的下端与底板4之间通过连杆8连接实现传动。连杆8的与铰接杆3连接的一端就构成了施力部。
使用时，电机驱动定位件向前移动，滚轮沿着限位臂的弧形引导面滑向电能表，在压簧和连杆的施力作用下，夹紧臂夹紧在电能表的相背两侧；检测完成后，电机驱动定位件向后移动，在压簧和连杆的施力作用下，铰接杆绕铰接点涨开，滚轮沿着弧形引导面滚动至定位件的限位臂上，滚轮松开了对电能表的夹紧固定，电能表也脱离了上电结构，可以对电能表自由拾放，将检测好的电能表取走，将需要检测的电能表防止定位件上，进行下一个循环。
当然，在其他实施例中，铰接杆可以采用在底座上设置左右滑移顶推活塞杆，通过气动或液动实现顶推。
在其他实施例中，两个铰接杆可以分别配置各自的驱动结构和底板进行驱动。
在其他实施例中，驱动结构可以包括底板和与底板顶推配合的凸轮，同时在凸轮上设置扭簧使凸轮具有转动趋势顶推底板。
在其他实施例中，压簧也可以是设置在底座与底板之间的拉簧等结构。
在其他实施例中，可不设置连杆，直接将底板的板端推铰接杆的下端侧壁，使铰接杆摆动。
在其他实施例中，可将限位臂壁厚设置较薄，此时不需要设置引导面。或者是将引导面设置为楔形面。
在其他实施例中，定位件的移动可以通过手动控制。

Claims (10)

  1. 电能表用夹紧检测装置，其特征在于：包括底座，底座上前后导向移动装配有用于定位电能表的定位件，所述定位件还具有用于挡设在电能表的垂直于前后方向的两侧的限位臂，所述底座上还活动装配有两个分别抵顶在两个限位臂的相背外侧的夹紧臂，所述底座上还设有用于向夹紧臂施加沿朝向限位臂的方向移动的作用力的施力机构，所述夹紧臂在定位件前后移动的行程中受施力机构的驱动具有与限位臂夹紧配合的臂夹紧位，还具有与限位臂相对脱离并用于与电能表的相背外侧夹紧配合的表夹紧位。
  2. 根据权利要求1所述的电能表用夹紧检测装置，其特征在于：所述底座上位于定位件的相背两侧外均铰接有铰接杆，铰接杆的一端朝向限位臂延伸而构成所述夹紧臂，所述施力机构具有与铰接杆的另一端传动配合而使铰接杆摆动的施力部。
  3. 根据权利要求2所述的电能表用夹紧检测装置，其特征在于：所述施力机构包括与底座滑移装配的底板，底板在移动行程中与两个铰接杆的另一端传动配合而使对应的铰接杆转动并夹紧定位件，底板的与铰接杆配合的部分构成所述施力部，所述施力机构还包括驱动底板滑移的驱动结构。
  4. 根据权利要求3所述的电能表用夹紧检测装置，其特征在于：定义底板向上滑移与铰接杆传动配合使铰接杆转动以夹紧定位件，所述驱动结构包括设置在底座和底板之间并向底板施加向上的作用力的驱动弹簧。
  5. 根据权利要求4所述的电能表用夹紧检测装置，其特征在于：所述底座上具有上下延伸的导杆，底板穿装在导杆上，导杆的下端设有限位台阶，驱动弹簧为套设在导杆上并顶压设置在底板与限位台阶之间的压簧。
  6. 根据权利要求3所述的电能表用夹紧检测装置，其特征在于：所述底板包括底板本体和与底板本体铰接的连杆，所述连杆与铰接杆铰接连接而构成所述施力部。
  7. 根据权利要求1～6任一项所述的电能表用夹紧检测装置，其特征在于：所述底座上还设有在夹紧臂处于表夹紧位时用于与电能表电连接的上电结构。
  8. 根据权利要求1～6任一项所述的电能表用夹紧检测装置，其特征在于：所述限位臂的后端具有由限位臂的外侧面向内侧面延伸并向后倾斜的引导面，所 述引导面与夹紧臂的夹紧部导向配合以使夹紧臂在表夹紧位和臂夹紧位之间切换。
  9. 根据权利要求8所述的电能表用夹紧检测装置，其特征在于：所述夹紧部由设置在夹紧臂端部的滚轮形成。
  10. 根据权利要求1～6任一项所述的电能表用夹紧检测装置，其特征在于：所述底座还设有用于驱动定位件前后移动的丝杆螺母机构。
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