CN210323177U - Improved test pencil - Google Patents
Improved test pencil Download PDFInfo
- Publication number
- CN210323177U CN210323177U CN201920248440.7U CN201920248440U CN210323177U CN 210323177 U CN210323177 U CN 210323177U CN 201920248440 U CN201920248440 U CN 201920248440U CN 210323177 U CN210323177 U CN 210323177U
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- CN
- China
- Prior art keywords
- connecting piece
- touch electrode
- current
- limiting resistor
- pencil
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- Expired - Fee Related
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Abstract
The utility model provides an improved test pencil, its characterized in that, it includes hand touch electrode, bee calling organ, a body and the test contact that connect gradually by one end to the other end, the body is cylindric, the one end of hand touch electrode is circular platform, the other end of hand touch electrode is connected with the one end of bee calling organ, bee calling organ and hand touch electrode electrical connection, the one end of a body and the other end airtight connection of bee calling organ, the inside of a body is equipped with metal spring, neon tube and current-limiting resistor by one end to the other end in proper order, the lateral wall of a body is equipped with the observation window, the observation window is made by transparent material; the utility model has the advantages that: the novel pen has the advantages that the novel pen does not need to be provided with a battery, the buzzer is enabled to give out sound alarm when the tested object is electrified, the conductive metal spring, the neon tube and the current-limiting resistor are arranged in the pen body, so that the testing personnel is prevented from contacting with the electrified assembly, and the personal safety of the testing personnel is guaranteed.
Description
Technical Field
The utility model relates to a technical field of the electricity is tested to the low pressure, especially relates to a modified test pencil.
Background
In life, people can not be powered on at present, and the electric appliances such as televisions, computers, refrigerators, air conditioners, washing machines, induction cookers, mobile phones and the like are very convenient for life. In a factory, most process production equipment needs to use electricity to ensure that the production can be normally carried out. Meanwhile, the user is a tiger which cannot be seen, people are afraid of the tiger, and the user can be in danger of electric shock and even endanger life in life and work by carelessness. Therefore, a low voltage electroscope pen is used to detect whether a low voltage conductor or an electrical equipment housing is charged before a person touches the equipment which may be charged to endanger personal safety. However, the current structure of the luminous low-voltage electroscope is formed by connecting a test contact, a current-limiting resistor, a neon tube, a metal spring and a hand-touch electrode in series. The test contact is contacted with the tested object, the hand touches the hand touch electrode, when the tested object has relatively high voltage, the neon tube is lighted, which shows that the tested object is electrified. However, when the neon tube is observed to be lighted or not in the bright direction, the neon tube is not easy to be seen clearly, or when the neon tube is not lighted due to faults, the neon tube is easy to cause misjudgment of the detected object without electricity, thereby bringing electric shock danger to people.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an improved test pencil.
In order to realize the purpose, the technical scheme of the utility model is that:
an improved test pencil is characterized by comprising a hand-touch electrode, a buzzer, a pencil body and a test contact which are sequentially connected from one end to the other end, wherein the pencil body is cylindrical, one end of the hand-touch electrode is a circular platform, the other end of the hand-touch electrode is connected with one end of the buzzer, the buzzer is electrically connected with the hand-touch electrode, one end of the pencil body is hermetically connected with the other end of the buzzer, a metal spring, a neon tube and a current-limiting resistor are sequentially arranged in the pencil body from one end to the other end, the other end of the buzzer is connected with one end of the metal spring, the other end of the metal spring is connected with one end of the neon tube, the neon tube comprises a first connecting piece, a tube body and a second connecting piece which are sequentially connected from one end to the other end, the first connecting piece, the tube body and the second connecting piece are cylindrical, and the outer diameter of the first connecting piece is equal to that of the second connecting piece, the external diameter of body is less than first connecting piece and second connecting piece, the one end of first connecting piece is connected with metal spring's the other end, the central authorities that the one end embedding first connecting piece other end of body set up, the central authorities that the other end embedding second connecting piece one end of body set up, the other end and the one end of current-limiting resistor of second connecting piece are connected, the inner wall setting that the other end supported the body other end of the pen is supported to the other end of current-limiting resistor, the test contact includes base and contact body, the one end of base and the outer wall connection of the body other end of the pen, the one end of contact body is inserted and runs through the base setting by the other end of base, the one end of contact body contacts with the central authorities of the current-limiting resistor other end, the other.
Furthermore, the lateral wall of the pen body is provided with an observation window, the observation window is made of transparent materials, and the observation window is arranged close to the current-limiting resistor.
The utility model has the advantages that: the structure is simple, a battery is not required to be installed, the buzzer sounds to alarm by utilizing the electrification of a tested object, and the conductive metal spring, the neon tube and the current-limiting resistor are installed in the pen body, so that a tester is prevented from contacting an electrified component, and the personal safety of the tester is ensured; the two sides of the luminous tube body are provided with annular connecting pieces, and the outer diameter of each connecting piece is matched with the inner diameter of the pen body, so that the tube body with smaller outer diameter can be stabilized in the pen body; the other end of the contact body is in a screwdriver shape, can be used for contacting a measured object during electricity testing, and can also be used as a screwdriver, so that the purpose is increased.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Reference numerals:
1 hand touch electrode, 2 buzzer, 3 pen body, 4 test contact, 41 base, 42 contact body,
5 metal spring, 6 neon tube, 61 first connecting piece, 62 tube body, 63 second connecting piece,
7 current limiting resistor, 8 observation window.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses an improved test pencil, which is characterized in that, as shown in figure 1, the test pencil comprises a hand electrode 1, a buzzer 2, a pencil body 3 and a test contact 4 which are connected in sequence from one end to the other end, wherein the pencil body 3 is cylindrical and is made of reinforced insulating materials, one end of the hand electrode 1 is a circular platform, the other end of the hand electrode 1 is connected with one end of the buzzer 2, the buzzer 2 is electrically connected with the hand electrode 1, one end of the pencil body 3 is hermetically connected with the other end of the buzzer 2, a metal spring 5, a neon tube 6 and a current-limiting resistor 7 are sequentially arranged in the pencil body 3 from one end to the other end, the conductive metal spring 5, the neon tube 6 and the current-limiting resistor 7 are arranged in the pencil body 3, the tester is prevented from contacting with an electrified component, the personal safety of the tester is ensured, the other end of the buzzer 2 is connected with one end of the metal spring 5, the other end of the metal spring 5 is connected with one end of the neon tube 6, when electricity is tested, a hand touches the electrode 1, the metal spring 5 is compressed to be communicated with a test loop, the electricity is tested, and when an object to be tested is electrified, the buzzer 2 sounds to give an alarm.
The neon tube 6 comprises a first connecting piece 61, a tube body 62 and a second connecting piece 63 which are sequentially connected from one end to the other end, when a measured object is electrified, the tube body 62 of the neon tube 6 is lightened, the first connecting piece 61, the tube body 62 and the second connecting piece 63 are cylindrical, the outer diameters of the first connecting piece 61 and the second connecting piece 63 are equal, the outer diameter of the tube body 62 is smaller than that of the first connecting piece 61 and the second connecting piece 63, one end of the first connecting piece 61 is connected with the other end of the metal spring 5, one end of the tube body 62 is embedded into the central arrangement of the other end of the first connecting piece 61, the other end of the tube body 62 is embedded into the central arrangement of one end of the second connecting piece 63, the other end of the second connecting piece 63 is connected with one end of the current-limiting resistor 7, the outer diameters of the connecting pieces on two sides are matched with the inner diameter of the pen body 3, the other end of the current-limiting resistor 7 is abutted against the inner wall of the other end of the pen body 3, and the current-limiting resistor 7 can limit the current passing through the test pencil during testing.
The side wall of the pen body 3 is provided with an observation window 8, the observation window 8 is made of transparent materials, the observation window 8 is arranged close to the current-limiting resistor 7, and when the neon tube 6 is started to light, the neon tube 6 can be observed to light from the periphery of the observation window 8.
The test contact 4 includes base 41 and contact body 42, the one end of base 41 and the outer wall connection of the body of the pen 3 other end, the one end of contact body 42 is inserted and runs through the setting of base 41 by the other end of base 41, the one end of contact body 42 and the central authorities contact of current-limiting resistor 7 other end, the other end of contact body 42 is the screwdriver form, and the other end of contact body 42 contacts the testee when being used for testing the electricity, also can only use as the screwdriver.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (2)
1. An improved test pencil is characterized by comprising a hand-touch electrode, a buzzer, a pencil body and a test contact which are sequentially connected from one end to the other end, wherein the pencil body is cylindrical, one end of the hand-touch electrode is a circular platform, the other end of the hand-touch electrode is connected with one end of the buzzer, the buzzer is electrically connected with the hand-touch electrode, one end of the pencil body is hermetically connected with the other end of the buzzer, a metal spring, a neon tube and a current-limiting resistor are sequentially arranged in the pencil body from one end to the other end, the other end of the buzzer is connected with one end of the metal spring, the other end of the metal spring is connected with one end of the neon tube, the neon tube comprises a first connecting piece, a tube body and a second connecting piece which are sequentially connected from one end to the other end, the first connecting piece, the tube body and the second connecting piece are cylindrical, and the outer diameter of the first connecting piece is equal to that of the second connecting piece, the external diameter of body is less than first connecting piece and second connecting piece, the one end of first connecting piece is connected with metal spring's the other end, the central authorities that the one end embedding first connecting piece other end of body set up, the central authorities that the other end embedding second connecting piece one end of body set up, the other end and the one end of current-limiting resistor of second connecting piece are connected, the inner wall setting that the other end supported the body other end of the pen is supported to the other end of current-limiting resistor, the test contact includes base and contact body, the one end of base and the outer wall connection of the body other end of the pen, the one end of contact body is inserted and runs through the base setting by the other end of base, the one end of contact body contacts with the central authorities of the current-limiting resistor other end, the other.
2. The improved test pencil of claim 1 wherein the side wall of the pencil body is provided with a viewing window, the viewing window being made of a transparent material, the viewing window being disposed adjacent to the current limiting resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248440.7U CN210323177U (en) | 2019-02-27 | 2019-02-27 | Improved test pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248440.7U CN210323177U (en) | 2019-02-27 | 2019-02-27 | Improved test pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210323177U true CN210323177U (en) | 2020-04-14 |
Family
ID=70122239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920248440.7U Expired - Fee Related CN210323177U (en) | 2019-02-27 | 2019-02-27 | Improved test pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210323177U (en) |
-
2019
- 2019-02-27 CN CN201920248440.7U patent/CN210323177U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200414 Termination date: 20210227 |