CN201828598U - Step voltage detector - Google Patents
Step voltage detector Download PDFInfo
- Publication number
- CN201828598U CN201828598U CN2010205826763U CN201020582676U CN201828598U CN 201828598 U CN201828598 U CN 201828598U CN 2010205826763 U CN2010205826763 U CN 2010205826763U CN 201020582676 U CN201020582676 U CN 201020582676U CN 201828598 U CN201828598 U CN 201828598U
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- triode
- step voltage
- voltage detector
- switch
- resistor
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- 238000012360 testing method Methods 0.000 claims abstract description 43
- 229910052754 neon Inorganic materials 0.000 claims abstract description 21
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003990 capacitor Substances 0.000 claims description 16
- 230000006870 function Effects 0.000 description 18
- 238000005286 illumination Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241001166076 Diapheromera femorata Species 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000008571 general function Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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Abstract
The embodiment of the utility model provides a step voltage detector, including test contact, hand touch electrode and shell, still include: the neon tube is connected with the triode, the current limiting resistor is connected with the neon tube, the first buzzer is connected with the current limiting resistor, the neon tube is connected with the current limiting resistor, the first buzzer is connected with the current dividing resistor, the load resistor of the triode, the first switch and the direct current power supply; the testing contact is connected with the base electrode of the triode, one end of the shunt resistor is connected with the base electrode of the triode, and the other end of the shunt resistor is connected with the positive electrode of the direct-current power supply through the first switch; one end of the triode load resistor is connected with the collector of the triode, and the other end of the triode load resistor is connected with the first switch; the current-limiting resistor, the neon tube and the first buzzer are connected in series and then connected between the collector and the emitter of the triode; the hand touch electrode is connected with the emitting electrode of the triode; the negative pole of the direct current power supply is connected with the emitting pole of the triode. The utility model discloses can detect out the existence of step voltage effectively, in time report to the police outside safe distance, prevent that the operation personnel from being close danger area, cause the personal electric shock accident.
Description
Technical field
The utility model relates to the Electric tester that a kind of instructed voltage exists, and especially can discern a kind of pick-up unit of safe and dangerous step voltage, belongs to the electric measurement apparatus field, relates to a kind of step voltage detector particularly.
Background technology
Along with the further raising of electric automatization level, electricity has goed deep into each corner in the productive life, and in the execute-in-place of every profession and trade, for example in the mining area operation in oil field, high-voltage motor is used particularly extensive.When increasing productivity greatly, constituted certain threat also for operating personnel's personal safety, when especially producing step voltage around, very big to the danger of the person at line electrical leakage.Usually adopt the method for wearing insulating boot at present in the prior art, reduce the threat of step voltage to the person, but because some Wei Tiandiqu have a humid climate, especially when rainy season, traditional safety prevention measure can not satisfy the needs of job safety, and operating personnel very easily are subjected to the threat from step voltage.
The utility model content
In view of this, the purpose of this utility model is to overcome the deficiencies in the prior art, a kind of step voltage detector is provided, the step voltage that has electric leakage hidden danger zone is monitored, to realize detection to the step voltage near the work progress daily rain supply, and realize at the well site, oil field in heavy rain reproduces later,, preserving from the person that ensures the operating personnel to the detection of leaking electricity in the ponding of well site.
Realize that the goal of the invention technical scheme is: a kind of step voltage detector, described step voltage detector comprises test contact, hand touched electrode and shell, and described step voltage detector also comprises: triode, current-limiting resistance, neon tube, first hummer, shunt resistance, triode pull-up resistor, first switch and direct supply; Wherein, described test contact connects the base stage of described triode, and an end of described shunt resistance is connected in the base stage of described triode, and the other end of described shunt resistance is connected in the positive pole of described direct supply by described first switch; One end of described triode pull-up resistor connects the collector of described triode, and the other end of described triode pull-up resistor connects described first switch; Be connected between the collector and emitter of described triode after described current-limiting resistance, described neon tube and the series connection of described first hummer; Described hand touched electrode is connected in the emitter of described triode; The negative pole of described direct supply is connected in the emitter of described triode.
Further, described step voltage detector can also comprise: second switch and illuminating lamp, described second switch is connected between the positive pole and negative pole of described direct supply with described illuminating lamp series connection back.
Further, described step voltage detector can also comprise: the 3rd switch and second hummer, described the 3rd switch be connected between the positive pole and negative pole of described direct supply after described second hummer is connected.
Further, described step voltage detector can also comprise: first capacitor and second capacitor, described test contact is connected to the base stage of described triode by described first capacitor, and an end of described shunt resistance is connected to the collector of described triode by described second capacitor.Preferably, described shell is shaped as stick-shaped.
Particularly, described illuminating lamp can be the LED lamp, and described direct supply can be battery.
Further, described shell is provided with three buttons corresponding respectively with described first switch, described second switch and described the 3rd switch.The shape of described three buttons can be to have nothing in common with each other.
Alternatively, described shell has handle portion, and described three buttons are arranged on the described handle portion, and described hand touched electrode is arranged at the not end of described handle portion, and described test contact is arranged at the front end of described shell.
Alternatively, described shell is provided with a plurality of holes, and described a plurality of holes expose described illuminating lamp, described neon tube and described first hummer.
The above-mentioned step voltage detector that the utility model provides not only can be finished the monitoring of step voltage, but also has function, illumination functions and the controlled warning function of traditional test pencil.It is light, simple in structure that this step voltage is surveyed material, the obvious and waterproof of measurement effect.The utility model can detect the existence of step voltage effectively, in time reports to the police outside safe distance, prevents that the operating personnel near the hazardous location, causing the accident of human electric shock.In addition, this step voltage detector also has illumination functions, is convenient to detect at night.In addition, this step voltage detector also has controlled warning function, in the time of can when measuring or beyond measuring the Personal Risk being taken place, presses the button sound that rings automatically, makes surrounding population obtain alerting signal, in time rescues.In addition, this step voltage detector also has general function that can test pencil, but acousto-optic is pointed out with instructed voltage simultaneously and existed.In addition, this step voltage detector has the walking stick profile, when ground environment is abominable, can also assist operator walk uprightly, brings convenience to the operator.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the circuit theory diagrams of step voltage detector of the present utility model;
Fig. 2 is the surface structure synoptic diagram of step voltage detector of the present utility model.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The utility model provides a kind of Electric tester of instructed voltage existence, especially can discern a kind of pick-up unit of safe and dangerous step voltage, belongs to the electric measurement apparatus field.It is to be provided with a circuit board in walking stick formula waterproof case, by a triode as amplification driving circuit, neon tube is as light-emitting component, the alternating current impression amplification output circuit that two hummers are formed as audio element and current-limiting resistance, and link to each other with the test contact of shell front end, the rear end of shell is provided with the hand touched electrode.On the basis of original circuit, add lighting circuit in addition again, and increased controlled warning circuit.The utility model not only can be finished the monitoring of step voltage, but also has function, illumination functions and the controlled warning function of traditional test pencil, and its material is light, simple in structure, measurement effect obvious and waterproof.
Fig. 1 is the circuit theory diagrams of step voltage detector of the present utility model.As shown in Figure 1, this step voltage detector comprises: test contact 1, hand touched electrode 8, shell (not illustrating among Fig. 1), triode 2, current-limiting resistance 3, neon tube 4, first hummer 5, shunt resistance 7, triode pull-up resistor 15, first switch 9 and direct supply V; Wherein, test contact 1 connects the base stage of described triode 2, and an end of shunt resistance 7 is connected in the base stage of triode 2, and the other end of shunt resistance 7 is connected in the positive pole of direct supply V by first switch 9; One end of triode pull-up resistor 15 connects the collector of triode 2, and the other end of triode pull-up resistor 15 connects first switch 9; Be connected between the collector and emitter of triode 2 after current-limiting resistance 3, neon tube 4 and 5 series connection of first hummer; Hand touched electrode 8 is connected in the emitter of triode 2; The negative pole of direct supply V is connected in the emitter of triode 2.Need to prove, the Test Switchboard that first switch 9 is surveyed as step voltage, first hummer 5 is as the test hummer.Wherein, shunt resistance 7, triode pull-up resistor 15, triode 2 and direct supply V form amplifying circuit.These triode 2 enlargement factors can be 40-50 times.As a kind of distortion, this triode 2 also can replace with field effect transistor, also can adopt the multistage composite triode.As a kind of concrete application, one is extremely several thousand kilo-ohms of hundreds ofs for the resistance of current-limiting resistance 3, and one is several kilo-ohms the resistance of shunt resistance 7.In the present embodiment, current-limiting resistance 3 is preferably 300 kilo-ohms, and shunt resistance 7 is preferably 3 kilo-ohms.
Again as shown in Figure 1, further, this step voltage detector can also comprise: second switch 11 and illuminating lamp 6, second switch 11 be connected between the positive pole and negative pole of direct supply V after illuminating lamp 6 is connected.Wherein, second switch 11 is used to control the light on and off of illuminating lamp 6 as lamp switch.Particularly, illuminating lamp can be common bulb, also can be the LED lamp, and this direct supply V can adopt battery.Second switch 11 and illuminating lamp 6 are set, have realized illumination functions, can be convenient to night time operation.
Again as shown in Figure 1, further, this step voltage detector can also comprise: the 3rd switch 10 and second hummer, 12, the three switches 10 be connected between the positive pole and negative pole of direct supply V after second hummer 12 is connected.Wherein, second hummer 12 is as the alarm hummer, and the 3rd switch 10 is as alarm switch.Second hummer 12 and first hummer, 5 differences are, send long during 12 work of second hummer, send minor during 5 work of first hummer.
Again as shown in Figure 1, further, this step voltage detector can also comprise: first capacitor 13 and second capacitor, 14, the first capacitors 13 are connected between the base stage of test contact 1 and triode 2, and second capacitor 14 is connected between the collector and current-limiting resistance 3 of triode 2.The function of first and second capacitor is to cut off direct current, the logical interchange, and this two capacitor is coupling capacitance.
Step voltage shown in the following key diagram 1 is surveyed branch road, lighting sub loop, control type warning branch road, common test pencil branch road.
Constitute step voltage with hand touched electrode 8 and survey branch road by test contact 1, first electric capacity 13, shunt resistance 7, triode pull-up resistor 15, Test Switchboard 9, battery V, triode 2, second electric capacity 14, current-limiting resistance 3, neon tube 4, first hummer 5, finish the step voltage test function.
Constitute lighting sub loop by lamp switch 11, illuminating lamp 6, battery V, finish illumination functions.
Constitute control type warning branch road by alarm switch 10, alarm with hummer 12, battery V, finish the control type warning function.
Constitute common test pencil branch road by test contact 1, first electric capacity 13, shunt resistance 7, triode pull-up resistor 15, second electric capacity 14, current-limiting resistance 3, neon tube 4, first hummer 5 with hand touched electrode 8, finish the test function of common test pencil.
Fig. 2 is the surface structure synoptic diagram of step voltage detector of the present utility model.As shown in Figure 2, this step voltage detector comprises shell 16, and the front end of shell is provided with test contact 1, shell 16 be shaped as stick-shaped, can the assist operator walking upright when ground environment is abominable, bring convenience to the operator.And this stick-shaped shell 16 has on the other hand shank 17, with Test Switchboard 9, alarm contact 10 and lamp switch 11 with respect to three buttons be arranged on this handle portion 17, the user can make things convenient for as required and presses above-mentioned button fast to start function corresponding.For avoiding the urgent mistake of user constantly by switch, button that can these three switch correspondences is set to different shapes, different colors, and perhaps switch in different ways to advance differentiation, is convenient to operator's identification.In the urgent moment that needs are reported to the police, the operator can find and press alarm contact rapidly to report to the police especially.Press lamp switch 11, illuminating lamp 6 is bright; Press alarm contact 10, alarm is sent long with hummer 12 sound; Press Test Switchboard 9, in the time of test, meet dangerous voltage, test is sent minor with hummer 5 sound.In addition, hand touched electrode 8 is arranged at the not end of this handle portion 17.Can be provided with a plurality of holes on the shell 16, these a plurality of holes expose illuminating lamp 6, neon tube 4, test hummer 5 and alarm hummer 12.The material of shell 16 can be a light material, so that carry.The material of shell 16 also should be an insulating material, to guarantee operator's safety.Voltage detector is applied to oil field, pools zone, well site, mining area, humid area, reed field because this strides frequently, so preferably adopt waterproof material to make.In addition, also above-mentioned a plurality of hole can be set on shell 16, but illuminating lamp 6, neon tube 4, test are placed enclosure with hummer 5 and alarm with hummer 12, and covering transparent material is adopted in illuminating lamp 6, neon tube 4, test with the part outside the hummer 12 with hummer 5 and alarm shell.
The step voltage detector operation process of the utility model Figure 1 and Figure 2 is below described.
As shown in Figure 1, closed Test Switchboard 9, behind turn-off lamp switch 11 and the alarm contact 10, constitute amplifying circuit, when carrying out the step voltage detection by battery V, Test Switchboard 9, shunt resistance 7, triode pull-up resistor 15 and triode 2, staff contact hand touched electrode 8, if during the dangerous voltage of the measured point bit strip of test contact 1 contact, this voltage is exaggerated circuit and amplifies, the voltage after being exaggerated makes that hummer 5 pipes, neon tube 4 is luminous, send alerting signal, the indication step voltage exists.If when the position, measured point did not have dangerous voltage, hummer 5 was not worked, and does not give the alarm, neon tube 4 is not luminous, thereby is able to distinguish the purpose of safe or dangerous voltage.In this process, the nothing of passing through of first capacitor 13 and 14 pairs of alternating currents of second capacitor influences.
When disconnecting Test Switchboard 9, alarm contact 10 and lamp switch 11, test contact 1, first electric capacity 13, shunt resistance 7, triode pull-up resistor 15, second electric capacity 14, current-limiting resistance 3, neon tube 4, first hummer 5 form path with hand touched electrode 8, are equivalent to common test pencil.
Closed lamp switch 11, when disconnecting Test Switchboard 9 and alarm contact 10, illuminating lamp 6 is bright, finishes illumination functions.
Closed alarm contact 10, when disconnecting Test Switchboard 9 and lamp switch 11, alarm is sounded with hummer 12, finishes the control type warning function.Controlled warning function in the time of can when measuring or beyond measuring the Personal Risk being taken place, is pressed the button sound that rings automatically, makes surrounding population obtain signal, in time rescue.
Above embodiment only in order to the technical scheme of the explanation embodiment of the invention, is not intended to limit; Although the embodiment of the invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the embodiment of the invention.
Claims (10)
1. step voltage detector, described step voltage detector comprises test contact, hand touched electrode and shell, it is characterized in that described step voltage detector also comprises: triode, current-limiting resistance, neon tube, first hummer, shunt resistance, triode pull-up resistor, first switch and direct supply; Wherein, described test contact connects the base stage of described triode, and an end of described shunt resistance is connected in the base stage of described triode, and the other end of described shunt resistance is connected in the positive pole of described direct supply by described first switch; One end of described triode pull-up resistor connects the collector of described triode, and the other end of described triode pull-up resistor connects described first switch; Be connected between the collector and emitter of described triode after described current-limiting resistance, described neon tube and the series connection of described first hummer; Described hand touched electrode is connected in the emitter of described triode; The negative pole of described direct supply is connected in the emitter of described triode.
2. step voltage detector according to claim 1 is characterized in that, described step voltage detector also comprises: second switch and illuminating lamp, described second switch be connected between the positive pole and negative pole of described direct supply after described illuminating lamp is connected.
3. step voltage detector according to claim 1, it is characterized in that, described step voltage detector also comprises: the 3rd switch and second hummer, described the 3rd switch be connected between the positive pole and negative pole of described direct supply after described second hummer is connected.
4. step voltage detector according to claim 1, it is characterized in that, described step voltage detector also comprises: first capacitor and second capacitor, described test contact is connected to the base stage of described triode by described first capacitor, and an end of described shunt resistance is connected to the collector of described triode by described second capacitor.
5. step voltage detector according to claim 1 is characterized in that, described shell be shaped as stick-shaped.
6. step voltage detector according to claim 1 is characterized in that, described illuminating lamp is the LED lamp, and described direct supply is a battery.
7. step voltage detector according to claim 1 is characterized in that, described shell is provided with three buttons corresponding respectively with described first switch, described second switch and described the 3rd switch.
8. step voltage detector according to claim 7 is characterized in that the shape of described three buttons has nothing in common with each other.
9. step voltage detector according to claim 7, it is characterized in that described shell has handle portion, described three buttons are arranged on the described handle portion, described hand touched electrode is arranged at the not end of described handle portion, and described test contact is arranged at the front end of described shell.
10. step voltage detector according to claim 2 is characterized in that described shell is provided with a plurality of holes, and described a plurality of holes expose described illuminating lamp, described neon tube and described first hummer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205826763U CN201828598U (en) | 2010-10-28 | 2010-10-28 | Step voltage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205826763U CN201828598U (en) | 2010-10-28 | 2010-10-28 | Step voltage detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201828598U true CN201828598U (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205826763U Expired - Lifetime CN201828598U (en) | 2010-10-28 | 2010-10-28 | Step voltage detector |
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| Country | Link |
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| CN (1) | CN201828598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372481A (en) * | 2015-12-07 | 2016-03-02 | 国网浙江省电力公司绍兴供电公司 | Step voltage monitor |
-
2010
- 2010-10-28 CN CN2010205826763U patent/CN201828598U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372481A (en) * | 2015-12-07 | 2016-03-02 | 国网浙江省电力公司绍兴供电公司 | Step voltage monitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |
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| CX01 | Expiry of patent term |