CN208091808U - A kind of secondary small line terminal strength testing tool of electric system - Google Patents

A kind of secondary small line terminal strength testing tool of electric system Download PDF

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Publication number
CN208091808U
CN208091808U CN201820383076.0U CN201820383076U CN208091808U CN 208091808 U CN208091808 U CN 208091808U CN 201820383076 U CN201820383076 U CN 201820383076U CN 208091808 U CN208091808 U CN 208091808U
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China
Prior art keywords
small line
handle
pulling force
electric
line terminal
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Active
Application number
CN201820383076.0U
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Chinese (zh)
Inventor
施俊
樊晓波
王越超
冯璇
尤智文
王伟峰
胡水莲
朱炯
潘年
王峥嵘
朱炜
楼茜
秦超逸
陈颂
杨妍婷
蔡斌
沙征
白纪军
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State Grid Shanghai Electric Power Co Ltd
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State Grid Shanghai Electric Power Co Ltd
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Priority to CN201820383076.0U priority Critical patent/CN208091808U/en
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Abstract

The utility model discloses a kind of secondary small line terminal strength testing tool of electric system, including spring shrapnel and handle, the spring shrapnel is equipped with the clamping part for secondary small line to be clamped;The pulling force sensor of the built-in connection spring shrapnel of the handle, and the microcontroller comparator of the pulling force sensor is connected, the microcontroller comparator connection buzzer and alarm lamp.It has the technical effect that:The standardization of secondary small line terminal strength test may be implemented in it, overcomes the difference of personal size firmly, prevents firmly too small possible inspection from not measuring inept wiring, causes to judge the inept situation of wiring by accident prevented also from firmly excessive.

Description

A kind of secondary small line terminal strength testing tool of electric system
Technical field
The utility model is related to a kind of secondary small line terminal strength testing tools of electric system.
Background technology
In recent years, with the fast development of real estate, a large amount of residential areas created and commercial center are had every year Completion, matched distribution transforming power station are also accordingly come into operation, and from design, construction to putting into operation, building time is short for new substation, The degree of automation requires height, the quality of construction to directly influence stability and the safety of power supply.To ensure the safety of substation Operation, each substation has thousands of up to ten thousand for being remotely controlled, telemetering, remote signalling or communication secondary small line be linked into relay protection Equipment and monitoring system of electric substation, the wiring quality of these secondary small lines, can by the safety for directly influencing entire power supply system It leans on.Current secondary small ray examination purely by checking by hand, and not only labor intensive is serious, with the miniaturization of equipment, small line Density it is higher and higher, the inspection work of small line can not have been completed by hand.
Due to the self-skill of construction personnel, the difference of working experience, it is difficult to ensure that up to ten thousand for being remotely controlled, telemetering, The secondary small line of remote signalling or communication can complete wiring by unified standard requirement.To improve working efficiency, the period is checked and accepted in reduction, In a short period of time, how quickly, conveniently and effectively the wiring quality for detecting above-mentioned secondary small line is pendulum in power transformation The a difficult problem stood in face of inspector.
It is usually strong to detect secondary small line wiring using conventional nipper plier when engineers and technicians test at the scene Degree, although this mode is simple, the size that everyone exerts oneself is calculated without standard measure, during atual detection, firmly too small May inspection the case where not measuring wiring loosely, firmly excessive was perhaps the line that connects originally to pulling out.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of secondary small line wiring of electric system Strength test tool may be implemented the standardization of secondary small line terminal strength test, overcome the difference of personal size firmly, It prevents firmly too small possible inspection from not measuring inept wiring, causes erroneous judgement wiring inept prevented also from firmly excessive Situation.
Realizing a kind of technical solution of above-mentioned purpose is:A kind of secondary small line terminal strength testing tool of electric system, packet Spring shrapnel and handle are included, the spring shrapnel is equipped with the clamping part for secondary small line to be clamped;
The pulling force sensor of the built-in connection spring shrapnel of the handle, and connect the monolithic of the pulling force sensor Machine comparator, the microcontroller comparator connection buzzer and alarm lamp.
Further, A/D conversion circuits are equipped between the pulling force sensor and the microcontroller comparator.
Further, the output end of the pulling force sensor is equipped with amplifier, and the amplifier connects the A/D conversions Circuit.
Further, the microcontroller comparator and the A/D conversion circuits are respectively positioned in one piece of monolithic mainboard.
Further, physical button and liquid crystal display are additionally provided on the microcontroller comparator.
Further, the spring shrapnel includes handle and handle attachment part, the handle and the handle attachment part it Between be pivotally connected by spring shaft, the front end of the handle and the handle attachment part forms the clamping part, and the handle connects The rear end of socket part is equipped with the connecting rod for being inserted into the handle, and the pulling force sensor is socketed in the connecting rod.
Further, the secondary small line terminal strength testing tool of the electric system further includes the connection microcontroller ratio Compared with the battery of device and the pulling force sensor.
Further, the secondary small line terminal strength testing tool of the electric system further includes connecting filling for the battery Electrical interface, power switch and power supply indicator.
A kind of technical solution of the secondary small line terminal strength testing tool of electric system of the utility model is used, including Spring shrapnel and handle, the spring shrapnel are equipped with the clamping part for secondary small line to be clamped;Described in the built-in connection of the handle The pulling force sensor of spring shrapnel, and the microcontroller comparator of the pulling force sensor is connected, the microcontroller comparator connects Connect buzzer and alarm lamp.It has the technical effect that:The standardization of secondary small line terminal strength test may be implemented in it, overcomes individual The difference of size firmly prevents firmly too small possible inspection from not measuring inept wiring, causes prevented also from firmly excessive Judge the inept situation of wiring by accident.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the secondary small line terminal strength testing tool of electric system of the utility model.
Specific implementation mode
Referring to Fig. 1, the inventor of the utility model is in order to preferably managing the technical solution of the utility model Solution, is described in detail below by specifically embodiment, and in conjunction with attached drawing:
Referring to Fig. 1, a kind of secondary small line terminal strength testing tool of electric system of the utility model includes spring bullet Piece 1 and handle 2.
Spring shrapnel 1 includes handle 12 and handle attachment part 11, passes through spring shaft between handle 12 and handle attachment part 11 13 are pivotally connected.The front end of handle 12 and handle attachment part 11 is formed for the secondary small line 91 in terminal block 9 to be clamped Clamping part 14, secondary small line include at least communication line, telemetering line, remote line, remote signalling line.The rear end of handle attachment part 11, which is equipped with, inserts Enter the connecting rod 15 of handle 2.After clamping tested secondary small line 91 in clamping part 14, following handle 12, clamping part 14 need to be unclamped After the relieving of handle 12, clamp tested secondary small line 91, pull handle 2 measures the size of pulling force.
Pulling force sensor 3 and monolithic mainboard 4 are equipped in handle 2.The company of spring shrapnel 1 is socketed on pulling force sensor 3 On extension bar 15.Monolithic mainboard 4 is equipped with monolithic mainboard mounting hole 49, for monolithic mainboard 4 to be fixed in handle 2. A/D conversion circuits 41, microcontroller comparator 42, buzzer 43, power supply indicator 44, alarm lamp are additionally provided in monolithic mainboard 4 45, power switch 46 and charging interface 47.2 internal battery 5 of handle.
Pulling force sensor 3 is a kind of active sensor, and operation principle is produced on its surface after being based on resistance material stress The various mechanical quantities that clamping part 14 pulls secondary small line to generate are converted to the knot of analog voltage signal by the piezoelectric effect of raw charge The range of configuration sensor, i.e. resistance strain sensor, pulling force sensor 3 selected in the present embodiment is 5kg, and precision is 0.01%, meet required precision.The model RL-L2 pulling force sensors of pulling force sensor 3.
Mechanical strain signal is converted to analog voltage signal by the resistance strain gage for being built in pulling force sensor 3, due to electricity It hinders foil gauge dependent variable and corresponding resistor variation is general all very small, it is difficult to it is directly accurate to measure, and therefore inconvenient processing is drawn Force snesor 3 uses conversion circuit and the variation of resistance strain gage is converted into analog voltage signal.But since analog voltage is believed Number amplitude it is smaller, the output end of pulling force sensor 3 is equipped with amplifier (not shown), is put to analog voltage signal Greatly.
Pulling force sensor 3 connects A/D conversion circuits 41 by amplifier, and A/D conversion circuits 41 connect microcontroller comparator 42。
A/D conversion circuits 41 use 24 A/D conversion chips, and regulated power supply, the oscillation of piece internal clock are integrated in the chip Device, all control signals are driven by pin, are configured without the register to chip interior, dc measuring bridge signal will not It is influenced by the distributed inductance and capacitance of each element and conducting wire, strong antijamming capability.
Consider from the memory of microcontroller comparator 42, rate, versatility, price etc., the utility model uses ST89C52 chips are a low-power consumption, high performance microcontroller, compatible MCS-51 standards and 80C51 pin configurations, integrate General 8 central processing units and ISP Flash storages.
Liquid crystal display and physical button are additionally provided on microcontroller comparator 42, physical button is used for being stored in ISP Flash Pulling force threshold value in storage is set, and liquid crystal display is used to show the pulling force threshold value in ISP Flash storages.
Buzzer 43 and alarm lamp 45 are all connected with microcontroller comparator 42, and microcontroller comparator 42 is examined in pulling force sensor 3 When measuring the pulling force of spring shrapnel 1 more than pulling force threshold value, the testing result of pulling force sensor 3 is responded, 43 He of buzzer Alarm lamp 45 is opened simultaneously, and buzzer 43 sends out prompt tone, and alarm lamp 45 flickers, and confirms that secondary small line terminal strength meets intensity It is required that.If pulling force sensor 3 detects that the pulling force of spring shrapnel 1 is less than or equal to pulling force threshold value, and secondary small line is drawn out, then Judge that the terminal strength of secondary small line is unqualified.
Battery 5 connects microcontroller comparator 42 and pulling force sensor 3, is 3 work of microcontroller comparator 42 and pulling force sensor Offer power supply is provided.
Power supply indicator 44, power switch 46 and charging interface 47 are all connected with battery 5, and wherein power supply indicator 44 is for examining Survey battery powered break-make, power switch 46 is used to be turned on and off battery 5 to microcontroller comparator 42 and pulling force sensor 3 Power supply.Charging interface 47 is used to charge to battery 5.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate that this practicality is new Type, and be not used as the restriction to the utility model, as long as in the spirit of the utility model, to the above Variation, the modification of embodiment will all be fallen in the Claims scope of the utility model.

Claims (8)

1. a kind of secondary small line terminal strength testing tool of electric system, including spring shrapnel and handle, it is characterised in that:It is described Spring shrapnel is equipped with the clamping part for secondary small line to be clamped;
The pulling force sensor of the built-in connection spring shrapnel of the handle, and connect the microcontroller ratio of the pulling force sensor Compared with device, the microcontroller comparator connection buzzer and alarm lamp.
2. the secondary small line terminal strength testing tool of a kind of electric system according to claim 1, it is characterised in that:It is described A/D conversion circuits are equipped between pulling force sensor and the microcontroller comparator.
3. the secondary small line terminal strength testing tool of a kind of electric system according to claim 2, it is characterised in that:It is described The output end of pulling force sensor is equipped with amplifier, and the amplifier connects the A/D conversion circuits.
4. the secondary small line terminal strength testing tool of a kind of electric system according to claim 2, it is characterised in that:It is described Microcontroller comparator and the A/D conversion circuits are respectively positioned in one piece of monolithic mainboard.
5. the secondary small line terminal strength testing tool of a kind of electric system according to claim 1, it is characterised in that:It is described It is additionally provided with physical button and liquid crystal display on microcontroller comparator.
6. the secondary small line terminal strength testing tool of a kind of electric system according to claim 1, it is characterised in that:It is described Spring shrapnel includes handle and handle attachment part, is pivotally connected by spring shaft between the handle and the handle attachment part, The front end of the handle and the handle attachment part forms the clamping part, and the rear end of the handle attachment part is equipped with described in insertion The connecting rod of handle, the pulling force sensor are socketed in the connecting rod.
7. the secondary small line terminal strength testing tool of a kind of electric system according to claim 1, it is characterised in that:It is also Battery including connecting the microcontroller comparator and the pulling force sensor.
8. the secondary small line terminal strength testing tool of a kind of electric system according to claim 7, it is characterised in that:It is also Charging interface, power switch and power supply indicator including connecting the battery.
CN201820383076.0U 2018-03-21 2018-03-21 A kind of secondary small line terminal strength testing tool of electric system Active CN208091808U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820383076.0U CN208091808U (en) 2018-03-21 2018-03-21 A kind of secondary small line terminal strength testing tool of electric system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820383076.0U CN208091808U (en) 2018-03-21 2018-03-21 A kind of secondary small line terminal strength testing tool of electric system

Publications (1)

Publication Number Publication Date
CN208091808U true CN208091808U (en) 2018-11-13

Family

ID=64059563

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820383076.0U Active CN208091808U (en) 2018-03-21 2018-03-21 A kind of secondary small line terminal strength testing tool of electric system

Country Status (1)

Country Link
CN (1) CN208091808U (en)

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