CN207268753U - A kind of DC low-voltage test pencil - Google Patents
A kind of DC low-voltage test pencil Download PDFInfo
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- CN207268753U CN207268753U CN201721400732.5U CN201721400732U CN207268753U CN 207268753 U CN207268753 U CN 207268753U CN 201721400732 U CN201721400732 U CN 201721400732U CN 207268753 U CN207268753 U CN 207268753U
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- led light
- low
- voltage test
- test pencil
- spring
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Abstract
The technical field of maintenance circuit instrument is the utility model is related to, more particularly to a kind of DC low-voltage test pencil.It includes a shell, clip and connecting wire, the upper and lower end of described shell is respectively equipped with head cover and surveys electric knife bar, LED luminescence components and spring are equipped with described shell, the both ends of the LED luminescence components are connected to spring and survey on electric knife bar respectively, the other end of the spring is connected on head cover, one end of the connecting wire is stretched into a shell by head cover and is connected with spring, and the other end of the connecting wire is connected with clip.The utility model DC low-voltage test pencil is used as light-emitting component using LED light, and LED light performance stabilization, be connected firmly, so as to extend the service life of the utility model, and the brightness of LED light becomes clear, and user easily differentiates.The utility model DC low-voltage test pencil is suitable for the direct current of detection 6v 24v.
Description
Technical field
The technical field of maintenance circuit instrument is the utility model is related to, more particularly to a kind of DC low-voltage test pencil.
Background technology
DC low-voltage test pencil is a kind of very common user's instrument, for test in the parts on automobile whether
Powered, after DC low-voltage test pencil is contacted with object under test, bulb inside is shinny, illustrates that the object is powered.It is but traditional straight
Stream low tension test pencil but has the following disadvantages;（One）The luminescent device of traditional DC low-voltage test pencil is frequently with tengsten lamp
Bubble, but osram lamp vibration is easily burnt, and also brightness is low, and 6V brightness ratios are dark when detecting low-voltage, None- identified.（Two）Pass
The DC low-voltage test pencil of system cannot be distinguished by the positive and negative anodes of charged object.
Utility model content
The purpose of this utility model is that overcome above-mentioned the shortcomings of the prior art, and provide it is a kind of it is simple in structure,
The DC low-voltage test pencil that performance is stable, brightness is enough.
What the purpose of this utility model was realized in：
A kind of DC low-voltage test pencil, including a shell, clip and connecting wire, the upper and lower end of described shell are respectively equipped with
Head cover and survey electric knife bar, described shell is interior to be equipped with LED luminescence components and spring, and the both ends of the LED luminescence components abut respectively
In spring and survey on electric knife bar, the other end of the spring is connected on head cover, and one end of the connecting wire is stretched into by head cover
It is connected in shell and with spring, the other end of the connecting wire is connected with clip.
The utility model can also improve further below.
The LED luminescence components include LED light cylinder, LED light, pressure limiting resistance and conductive filament, the LED light and pressure limiting
Resistance is arranged in LED light cylinder, and the LED light and pressure limiting resistance are connected in series by conductive filament, the both ends point of the conductive filament
Not Shen Chu LED light cylinder both ends, and abutted respectively with surveying electric knife bar, spring.
The both ends of the LED light cylinder are respectively equipped with the first end cap and the second end cap, and first end is stretched out at conductive filament both ends respectively
Lid and second end cover.
Described shell and LED light cylinder are transparent.
The head cover is threaded in the upper end of a shell.
The clip is crocodile clip.
The beneficial effects of the utility model are as follows：
（One）The utility model DC low-voltage test pencil is using LED light as light-emitting component, and LED light performance is stable, connection
Firmly, so as to extend the service life of the utility model, and the brightness of LED light becomes clear, and user easily differentiates.This practicality
Novel DC low tension test pencil is suitable for the direct current of detection 6v-24v.
（Two）The utility model can also be used for distinguishing the positive and negative anodes of charged object, and object under test is being touched just when surveying electric knife bar
When the anode of object under test is touched in pole, clip, LED light sends out a warning, on the contrary, electric knife bar touches the anode of object under test, clip touches when surveying
During the cathode of object under test, LED light then gives a green light.Therefore user can distinguish the positive and negative anodes of object under test.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model DC low-voltage test pencil.
Embodiment
The utility model is further described with reference to the accompanying drawings and embodiments.
Embodiment one, as shown in Figure 1, a kind of DC low-voltage test pencil, including a shell 1, clip 8 and connecting wire 7, it is described
The upper and lower end of shell 1 is respectively equipped with head cover 5 and surveys electric knife bar 2, and LED luminescence components 3 and spring 6, institute are equipped with described shell 1
The both ends for stating LED luminescence components 3 are connected to spring 6 and survey on electric knife bar 2 respectively, and the other end of the spring 6 is connected to head cover 5
On, one end of the connecting wire 7 is stretched into a shell 1 by head cover 5 and is connected with spring 6, the other end of the connecting wire 7 with
Clip 8 connects.
As the utility model more specifically technical solution.
The LED luminescence components 3 include LED light cylinder 30, LED light 31, pressure limiting resistance 33 and conductive filament 32, the LED
Lamp 31 and pressure limiting resistance 33 are arranged in LED light cylinder 30, and the LED light 31 and pressure limiting resistance 33 are connected by conductive filament 32 and connected
Connect, the both ends of LED light cylinder 30 are stretched out at the both ends of the conductive filament 32 respectively, and are abutted respectively with survey electric knife bar 2, spring 6.
The both ends of the LED light cylinder 30 are respectively equipped with the first end cap 34 and the second end cap 35, and 32 both ends of conductive filament are stretched respectively
Go out on the first end cap 34 and the second end cap 35.
Described shell 1 and LED light cylinder 30 are transparent.
The head cover 5 is threaded in the upper end of a shell 1.
The clip 8 is crocodile clip.
The operation principle of the utility model：
User uses the object under test in the utility model detection automobile（Electric wire）When, clip 8 clamps one end, surveys electric knife
Bar 2 contacts the other end, therefore object under test and the utility model DC low-voltage test pencil form a closed circuit, electric current successively from
Electric knife bar 2, pressure limiting resistance 33, LED light 31, spring 6, connecting wire 7, clip 8 is surveyed to flow through.LED light 31 shines, then shows to be measured
Object is powered, on the contrary, LED light 31 does not shine, then shows that object under test is not charged.Certain the utility model can also be low at other
Used on straightening galvanic electricity device.
The utility model can also be used for distinguishing the positive and negative anodes of charged object, when survey electric knife bar 2 touches cathode, the folder of object under test
When son 8 touches the anode of object under test, LED light 31 sends out a warning, on the contrary, electric knife bar 2 touches the anode of object under test, clip 8 touches when surveying
During the cathode of object under test, LED light 31 then gives a green light.Therefore user can distinguish, the positive and negative anodes of object under test.
Claims (6)
1. a kind of DC low-voltage test pencil, including a shell, clip and connecting wire, the upper and lower end of described shell is respectively equipped with top
Lid and survey electric knife bar, described shell is interior to be equipped with LED luminescence components and spring, and the both ends of the LED luminescence components are connected to respectively
On spring and survey electric knife bar, the other end of the spring is connected on head cover, and pen is stretched into one end of the connecting wire by head cover
It is connected in shell and with spring, the other end of the connecting wire is connected with clip.
2. DC low-voltage test pencil according to claim 1, it is characterised in that the LED luminescence components include LED light cylinder,
LED light, pressure limiting resistance and conductive filament, the LED light and pressure limiting resistance are arranged in LED light cylinder, the LED light and pressure limiting
Resistance is connected in series by conductive filament, and the both ends of LED light cylinder are stretched out at the both ends of the conductive filament respectively, and respectively with surveying electric knife
Bar, spring abut.
3. DC low-voltage test pencil according to claim 2, it is characterised in that the both ends of the LED light cylinder are respectively equipped with
One end cap and the second end cap, the first end cap is stretched out at conductive filament both ends respectively and second end covers.
4. DC low-voltage test pencil according to claim 3, it is characterised in that described shell and LED light cylinder are transparent.
5. DC low-voltage test pencil according to claim 4, it is characterised in that the head cover is threaded in the upper of a shell
End.
6. DC low-voltage test pencil according to claim 5, it is characterised in that the clip is crocodile clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721400732.5U CN207268753U (en) | 2017-10-26 | 2017-10-26 | A kind of DC low-voltage test pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721400732.5U CN207268753U (en) | 2017-10-26 | 2017-10-26 | A kind of DC low-voltage test pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207268753U true CN207268753U (en) | 2018-04-24 |
Family
ID=61954912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721400732.5U Active CN207268753U (en) | 2017-10-26 | 2017-10-26 | A kind of DC low-voltage test pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207268753U (en) |
-
2017
- 2017-10-26 CN CN201721400732.5U patent/CN207268753U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180619 Address after: 528300 Daliang District Office of Shunde District, Foshan, Guangdong, No. three, 18 Xinhui Road, five Sha neighborhood committee. Patentee after: Guangdong oron Hardware Tools Co., Ltd. Address before: 528300 Foshan Daliang District Office, Daliang, Guangdong five Shunde Sha neighborhood committee one of Xinhui road 18 Patentee before: FOSHAN SHUNDE AONENG ELECTRICAL APPLIANCES CO., LTD. |
|
| TR01 | Transfer of patent right |