CN2445332Y - Digital multimeter mechanical anti-misoperation - Google Patents
Digital multimeter mechanical anti-misoperation Download PDFInfo
- Publication number
- CN2445332Y CN2445332Y CN 00251712 CN00251712U CN2445332Y CN 2445332 Y CN2445332 Y CN 2445332Y CN 00251712 CN00251712 CN 00251712 CN 00251712 U CN00251712 U CN 00251712U CN 2445332 Y CN2445332 Y CN 2445332Y
- Authority
- CN
- China
- Prior art keywords
- baffle plate
- function knob
- input jack
- function
- pulley
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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- Mechanical Control Devices (AREA)
Abstract
The utility model relates to a mechanical anti-misoperation device for a digital multimeter, which is provided with a function knob, a positioning tooth socket and a plurality of input jacks. The periphery of the positioning tooth socket is fixedly connected with a cam groove. The upward side of each input jack is provided with a baffle plate, and the baffle plate is provided with a fulcrum shaft, a pulley and an open pore. The fulcrum shaft is positioned on a casing above the baffle plate, and the pulley extends into the cam groove below the baffle plate. When the function knob is turned to a selected function, the open pore is aimed at a corresponding input jack of the selected function. The utility model adopts a mechanical way to force to control the correct the coincidence relation between the stage of the function knob and the jack position in which an instrument pen plug is inserted, and has the advantages of convenient operation, simple structure and low cost.
Description
The utility model belongs to the anti-misoperation apparatus of multimeter, and what be specifically related to is a kind of digital multimeter mechanical anti-misoperation operating means.
The digital multimeter of single knob-operated is carrying out generally carrying out following two steps operation when function or range are provided with: 1. the rotating function knob makes switch be set to required function or range position; 2. the test pencil plug is inserted into required function or the corresponding input jack of range in.More than arbitrary step operate when wrong instrument and can not measure, even cause that instrument damages.For preventing the generation of above situation, similar instrument has the technology that adopts wrong way alarm, realizes reporting to the police with circuit during misoperation when above arbitrary step, promptly uses sound prompting operation wrong.These class methods have following weak point: 1. under the higher occasion of neighbourhood noise, covered by neighbourhood noise because the sound of instrument maloperation prompting volume is limited, thereby can not reach the warning effect; 2. circuit is for obtaining the functional switch position state signal, and again one group of switch and the brush slideways of taking of circuit increase the instrument cost more.
The purpose of this utility model is to provide a kind of mechanical digital multimeter anti-misoperation apparatus at the deficiency of above-mentioned prior art existence.
The purpose of this utility model is achieved in that the utility model is provided with the function knob, location teeth groove and several input jacks, periphery at the location teeth groove is fixedly connected with cam path, the function knob, location teeth groove and cam path three are as a whole, can rotate around the central rotating shaft of function knob, above input jack, be provided with baffle plate, on baffle plate, be provided with fulcrum, pulley and perforate, fulcrum is positioned on the casing of baffle plate top, pulley stretches in the cam path of baffle plate below, after the rotating function knob is selected gear, the corresponding input jack of this gear is aimed in perforate on the baffle plate, and remaining input jack is then stopped by baffle plate and closes.Using method of the present utility model and principle are as follows: at first the rotating function knob is provided with required function and range gear, cam path rotates propelling sheave simultaneously, making baffle plate is that a spot wobble is till the input jack of the aligning of the perforate on baffle plate gear correspondence with fulcrum, the test pencil plug is inserted the input jack of this unlatching, promptly finish the correct operation that patches, and remaining input jack is closed because of being stopped by baffle plate, can not insert plug, thereby realizes the anti-error effect that patches.Insert the input jack state at test pencil, the function knob can be in corresponding function of this input jack or range the rotary setting gear, but can not put the function knob to the gear that input jack is not corresponding therewith, because the test pencil plug has pinned the perforate on the baffle plate, baffle plate and pulley all can not be swung, cause the function knob to be obstructed, can not rotation direction with insert the not corresponding gear of input jack on.
Technique effect of the present utility model is: the utility model adopt mechanical means by force control function knob gear and test pencil plug insert correct corresponding relation between jack position, easy to operate, simple in structure, cost is low.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 to Fig. 4 is the working state figure when opening three input jacks respectively embodiment illustrated in fig. 1.
As shown in Figure 1, the anti-misoperation apparatus of present embodiment is made up of function knob 1, location teeth groove 2, cam path 8, baffle plate 3 and three input jacks 6, function knob 1 is positioned at the casing surface, remaining part then is installed in casing inside, and on casing, be provided with and input jack 6 corresponding holes, insert in the input jack 6 through this hole for test pencil plug 5.Location teeth groove 2 is positioned at the periphery of function knob 1, cam path 8 is positioned at the periphery of location teeth groove 2, function knob 1, location teeth groove 2 and cam path 8 threes are as a whole, can rotate around the central rotating shaft of function knob 1, location teeth groove 2 is made function knob 1 circumferential registration usefulness, and the curve shape of cam path 8 is by predetermined gear and corresponding relation design of opening input jack.Baffle plate 3 is located at the top of input jack 6, on baffle plate 3, be provided with fulcrum 9, pulley 7 and " 8 " shape perforate 4, fulcrum 9 is fixed on the casing of baffle plate 3 tops, baffle plate 3 can be around fulcrum 9 swings, pulley 7 stretches in the cam path 8 of baffle plate 3 belows, be limited in the cam path 8 and slide, " 8 " shape perforate 4 is also by predetermined corresponding input jack 6 designs of opening on the baffle plate 3.As Fig. 2, Fig. 3 and shown in Figure 4, when function knob 1 rotates, cam path 8 propelling sheaves 7 slide, make baffle plate 3 around fulcrum 9 swings, when function knob 1 turns to certain gear, " 8 " shape perforate 4 will be aimed at the corresponding input jack 6 of gear therewith, and other input jack 6 is stopped by baffle plate 3 and closes, can not insert the test pencil plug, thereby prevent maloperation.When the needs gear shift, can only extract the test pencil plug, rotating function knob 1 is selected gear again.
Claims (1)
1. a digital multimeter mechanical anti-misoperation operating means is provided with function knob, location teeth groove and several input jacks, and it is characterized in that: the periphery at described location teeth groove is fixedly connected with cam path; Above input jack, be provided with baffle plate, be provided with fulcrum, pulley and perforate on baffle plate, fulcrum is positioned on the casing of baffle plate top, and pulley stretches in the cam path of baffle plate below, after the rotating function knob was selected gear, the corresponding input jack of this gear was aimed in perforate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00251712 CN2445332Y (en) | 2000-09-16 | 2000-09-16 | Digital multimeter mechanical anti-misoperation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00251712 CN2445332Y (en) | 2000-09-16 | 2000-09-16 | Digital multimeter mechanical anti-misoperation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2445332Y true CN2445332Y (en) | 2001-08-29 |
Family
ID=33609550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00251712 Expired - Lifetime CN2445332Y (en) | 2000-09-16 | 2000-09-16 | Digital multimeter mechanical anti-misoperation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2445332Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116784A (en) * | 2010-12-30 | 2011-07-06 | 优利德科技(中国)有限公司 | Mechanical test device |
| CN103529264A (en) * | 2012-06-28 | 2014-01-22 | 日置电机株式会社 | Multimeter |
| TWI598591B (en) * | 2016-08-16 | 2017-09-11 | 錞鐿科技股份有限公司 | Multimeter with switching protection mechanism for charging |
| CN107769292A (en) * | 2016-08-23 | 2018-03-06 | 錞镱科技股份有限公司 | Scale with charging switch protecting mechanism |
| CN112611897A (en) * | 2020-12-24 | 2021-04-06 | 中国电建集团贵州电力设计研究院有限公司 | Universal meter for secondary debugging of power system and use method thereof |
-
2000
- 2000-09-16 CN CN 00251712 patent/CN2445332Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116784A (en) * | 2010-12-30 | 2011-07-06 | 优利德科技(中国)有限公司 | Mechanical test device |
| CN102116784B (en) * | 2010-12-30 | 2012-09-05 | 优利德科技(中国)有限公司 | Mechanical test device |
| CN103529264A (en) * | 2012-06-28 | 2014-01-22 | 日置电机株式会社 | Multimeter |
| CN103529264B (en) * | 2012-06-28 | 2017-05-17 | 日置电机株式会社 | Multimeter |
| TWI598591B (en) * | 2016-08-16 | 2017-09-11 | 錞鐿科技股份有限公司 | Multimeter with switching protection mechanism for charging |
| CN107769292A (en) * | 2016-08-23 | 2018-03-06 | 錞镱科技股份有限公司 | Scale with charging switch protecting mechanism |
| CN112611897A (en) * | 2020-12-24 | 2021-04-06 | 中国电建集团贵州电力设计研究院有限公司 | Universal meter for secondary debugging of power system and use method thereof |
| CN112611897B (en) * | 2020-12-24 | 2024-04-30 | 中国电建集团贵州电力设计研究院有限公司 | Universal meter for secondary debugging of power system and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN HUAYI METER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HUAYI INSTRUMENT CO., LTD., SHENZHEN Effective date: 20070413 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070413 Address after: 523649 Guangdong city of Dongguan Province town weir village Patentee after: Dongguan Huayi Mastech Co., Ltd. Address before: 518028 4 East 8 floor, SEG science and Technology Industrial Park, Huaqiang North Road, Shenzhen, Guangdong Patentee before: Huayi Instruments and Meters Co., Ltd., Shenzhen |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20100916 Granted publication date: 20010829 |