CN210894473U

CN210894473U - Novel test pencil

Info

Publication number: CN210894473U
Application number: CN201921042382.9U
Authority: CN
Inventors: 毛文毅
Original assignee: Yinte Electronic Ningbo Co ltd
Current assignee: Yinte Electronic Ningbo Co ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-06-30
Anticipated expiration: 2029-07-05

Abstract

The utility model relates to the technical field of test pens, in particular to a novel test pen, which comprises a lower shell and an upper shell, wherein a probe rod, a first conductive rubber, a circuit board, a conductive elastic sheet and a battery are arranged in the lower shell, a press switch, a support frame, a display screen, a second conductive rubber, a first contact and a second contact are arranged on the circuit board, and an IC chip is also arranged on the circuit board, the utility model is electrically connected with one end of the first conductive rubber through the circuit board, the circuit board and the probe rod are connected by the conductive rubber, the looseness is not easy to occur, the connection is firmer and more reliable, one end of the second conductive rubber is electrically connected with the circuit board, the conductive rubber is clamped between the display screen and the circuit board, the conductive rubber is fixed by the support frame, the installation is simple, convenient and firm, and the IC chip is also arranged on the circuit board, the IC chip controls the test pencil to automatically shut down, so that the electric energy is saved, and the service time of the battery is prolonged.

Description

Novel test pencil

Technical Field

The utility model relates to a test pencil technical field, concretely relates to novel test pencil.

Background

The test pencil is mainly used for measuring whether the measured object is electrified, and the existing test pencil mainly has two kinds: one is the traditional test pencil that the neon tube shines, the other is the electronic test pencil, the body of the electronic test pencil is provided with an LED display screen, the test value can be read visually, therefore, the application is more and more extensive, however, in the existing test pencil, the detection probe rod is electrically connected with the circuit board through a jumper wire, namely, one end of the jumper wire is welded with the detection probe rod, the other end of the jumper wire is welded with the circuit board, but because the test pencil has a small size, the jumper wire is difficult to weld, the whole installation process of the test pencil is inconvenient, and the test pencil is difficult to avoid vibration or collision with other objects in the use process, the welding part of the jumper wire is easy to damage or loosen, the jumper wire connection between the detection probe rod and the circuit board is not firm enough, the electric connection between the detection probe rod and the circuit board is easy to cause the condition of poor contact, and the existing test pencil has no automatic shutdown function, after the test pencil is used, a user often forgets to close the test pencil easily, so the test pencil is also in a starting state when the test pencil is idle, the electric quantity of the test pencil is wasted, the service time of a battery in the test pencil is greatly shortened, the existing test pencil does not have an illumination function, when the test pencil is used under the dark condition, a maintainer identifies a detected object by means of an illumination tool, whether the battery can be electrified or not is determined by measurement, corresponding records are completed simultaneously, the battery can be replaced by means of the cooperation of an additional special tool when the test pencil is in a measuring environment with a narrow space, the detection process is very inconvenient, the existing test pencil is used for replacing the battery, the whole rear cover plate needs to be detached, the replacement process is very easy to damage parts inside the test pencil, and the replacement process is complicated.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a novel test pencil convenient to installation, connection are reliable, practice thrift the electric energy, the live time is long, convenient to use and battery are changed conveniently is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a novel test pencil comprises a lower shell and an upper shell, wherein the upper shell is connected with the lower shell in a clamping manner, a probe rod, first conductive rubber, a circuit board, a conductive elastic sheet and a battery are arranged in the lower shell, the battery is electrically connected with the circuit board through the conductive elastic sheet, the circuit board is electrically connected with one end of the first conductive rubber, the other end of the first conductive rubber is electrically connected with the probe rod, a press switch, a support frame, a display screen, second conductive rubber, a first contact and a second contact are arranged on the circuit board, the second contact is positioned at the rear end of the first contact, the first contact is positioned at the rear end of the second conductive rubber, one end of the second conductive rubber is electrically connected with the circuit board, the other end of the second conductive rubber is electrically connected with the display screen, the display screen and the second conductive rubber are both clamped in the support frame, and the support frame is clamped on the circuit board, the support frame is positioned at the rear end of the press switch, the first contact and the second contact are electrically connected with the circuit board, the circuit board is fixedly connected with the lower shell, the circuit board is also provided with an IC chip, the IC chip is electrically connected with the circuit board, the circuit board is electrically connected with one end of first conductive rubber, the other end of the first conductive rubber is electrically connected with the probe rod, the circuit board and the probe rod are connected by conductive rubber, compared with the prior art that the circuit board and the probe rod are connected by a jumper wire, the jumper wire is firmer and more reliable, when in jumper wire connection, one end of the jumper wire is welded with the circuit board, the other end of the jumper wire is welded with the probe rod, as the volume of the test pencil is smaller, the jumper wire is more difficult to weld, and in the use process, the test pencil is impacted or vibrated by the outside, the welding part of, the condition of poor contact between the probe rod and the circuit board is caused, the conductive rubber has larger size, one end of the conductive rubber is directly and electrically connected with the circuit board, the other end of the conductive rubber is directly and electrically connected with the probe rod, the installation process is easier, the loosening phenomenon is not easy to occur, the connection is firmer and more reliable, the connection reliability between the probe rod and the circuit board is improved, the conductive rubber has the advantages of convenient installation and reliable connection, one end of the second conductive rubber is electrically connected with the circuit board, the other end of the second conductive rubber is electrically connected with the display screen, the conductive rubber is directly connected with the circuit board and the display screen, the connection is more convenient than the common jumper connection, the jumper is easy to wind during the jumper connection, the additional fixation is needed, the inconvenience is brought to the installation, the conductive rubber is directly clamped between the display screen and the, the installation is more simple and convenient and firm, its advantage is convenient for install and connect reliably to still be provided with the IC chip on the circuit board, the IC chip with the circuit board electricity is connected, and when test pencil stop using 3 minutes after, the automatic shutdown is carried out to IC chip control test pencil, plays the effect of practicing thrift the electric energy, the live time of extension battery, its advantage is practiced thrift electric energy, live time is long.

Preferably, go up and be provided with front shroud and back shroud on the casing, the back shroud is located the front shroud rear end, the front shroud with the equal joint of back shroud is in go up on the casing, because the front shroud with the equal joint of back shroud is in go up on the casing, at the in-process of making and maintaining the test pencil, the joint is connected and is reduced the installation degree of difficulty of front shroud and back shroud, and the people's of being convenient for installation and dismantlement front shroud and back shroud, its advantage is convenient for install.

Preferably, go up still be provided with LED lamp and conductor wire on the casing, conductor wire one end and LED lamp electricity are connected, the conductor wire other end with the circuit board electricity is connected, because conductor wire one end and LED lamp electricity are connected, the conductor wire other end with the circuit board electricity is connected, uses the test pencil when light is darker, can open the LED lamp and throw light on, and the person of facilitating the use is more accurate finds the testee, need not to adopt extra lighting apparatus, brings the facility for people's testing process, its advantage is convenient to use.

Preferably, be provided with the pen clip down on the casing, the pen clip joint is in down on the casing, because the pen clip joint is in down on the casing, the joint is connected and is convenient for install and dismantle, when the battery needs to be changed, with the pen clip from down the casing take off can, after having changed the battery, again with the pen clip joint to down on the casing can, the person of facilitating the use changes the battery for the test pencil, its advantage is that the battery is changed conveniently.

Compared with the prior art, the utility model has the advantages of: the utility model is electrically connected with one end of the first conductive rubber through the circuit board, the other end of the first conductive rubber is electrically connected with the probe rod, the circuit board and the probe rod are connected by the conductive rubber, which is more firm and reliable than the prior circuit board and the probe rod connected by the jumper wire, and when the jumper wire is connected, one end of the jumper wire is welded with the circuit board, the other end of the jumper wire is welded with the probe rod, because the volume of the test pencil is smaller, the jumper wire is more difficult to weld, and in the using process, the test pencil is collided or vibrated by the outside, the welding part of the jumper wire, the circuit board and the probe rod is easy to be damaged or loosened, which causes the condition of poor contact between the probe rod and the circuit board, and the conductive rubber has larger size, one end of the conductive rubber is directly and electrically connected with the circuit board, the other end of the conductive rubber, the reliability of connection between the probe rod and the circuit board is improved, the probe rod and the circuit board are convenient to install and reliable in connection, one end of the second conductive rubber is electrically connected with the circuit board, the other end of the second conductive rubber is electrically connected with the display screen, the conductive rubber is directly connected with the circuit board and the display screen, the connection is more convenient than the common connection by using a jumper wire, the jumper wire is easy to wind and needs to be additionally fixed, the inconvenience is brought to installation when the jumper wire is connected, the conductive rubber is directly clamped between the display screen and the circuit board when the conductive rubber is installed, the conductive rubber is fixed by using the support frame, the installation is simpler and more firm, the probe rod and the circuit board are convenient to install and reliable in connection, an IC chip is also arranged on the circuit board and is electrically connected with the circuit board, and when the test pencil is stopped to be, the battery has the advantages that the battery is saved, the service life is long, the front cover plate and the rear cover plate are both clamped on the upper shell, the installation difficulty of the front cover plate and the rear cover plate can be reduced by clamping connection in the process of manufacturing and maintaining the test pencil, people can conveniently install and disassemble the front cover plate and the rear cover plate, the test pencil has the advantages that the test pencil is convenient to install, one end of a conducting wire is electrically connected with an LED lamp, the other end of the conducting wire is electrically connected with the circuit board, the test pencil can be used when the light is dark, the LED lamp can be turned on to illuminate, a user can conveniently find a tested object more accurately without adopting additional illuminating equipment, the test pencil brings convenience for the detection process of people, the test pencil has the advantages that the use is convenient, the pencil clamp is clamped on the lower shell, the clamping connection is convenient to install and disassemble, and when the battery needs to be replaced, the pencil clamp, after the battery is replaced, the pen clip is clamped on the lower shell, so that a user can replace the battery for the test pencil conveniently.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the present invention with the upper shell removed;

fig. 3 is a schematic diagram of the explosion structure of the present invention.

Wherein: 1-a lower shell; 2-an upper shell; 3-a probe rod; 4-a first conductive rubber; 5-a circuit board; 6-conductive elastic sheet; 7-a battery; 8-pressing a switch; 9-a support frame; 10-a display screen; 11-a second conductive rubber; 12-a first contact; 13-a second contact; 14-an IC chip; 15-front cover plate; 16-a rear cover plate; 17-an LED lamp; 18-an electrically conductive wire; 19-pen clip.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

As shown in fig. 1-3, a novel test pencil comprises a lower casing 1 and an upper casing 2, wherein the upper casing 2 is connected with the lower casing 1 in a clamping manner, a probe rod 3, a first conductive rubber 4, a circuit board 5, a conductive elastic sheet 6 and a battery 7 are arranged in the lower casing 1, the battery 7 is electrically connected with the circuit board 5 through the conductive elastic sheet 6, the circuit board 5 is electrically connected with one end of the first conductive rubber 4, the other end of the first conductive rubber 4 is electrically connected with the probe rod 3, the circuit board 5 is provided with a press switch 8, a support frame 9, a display screen 10, a second conductive rubber 11, a first contact 12 and a second contact 13, the second contact 13 is located at the rear end of the first contact 12, the first contact 12 is located at the rear end of the second conductive rubber 11, one end of the second conductive rubber 11 is electrically connected with the circuit board 5, the other end of the second conductive rubber 11 is electrically connected with the display screen 10, the display screen 10 and the second conductive rubber 11 are both clamped in a support frame 9, the support frame 9 is clamped on the circuit board 5, the support frame 9 is located at the rear end of a press switch 8, the second conductive rubber 11, the first contact 12 and the second contact 13 are both electrically connected with the circuit board 5, the circuit board 5 is fixedly connected with the lower casing 1, an IC chip 14 is further arranged on the circuit board 5, the IC chip 14 is electrically connected with the circuit board 5, a front cover plate 15 and a rear cover plate 16 are arranged on the upper casing 2, the rear cover plate 16 is located at the rear end of the front cover plate 15, the front cover plate 15 and the rear cover plate 16 are both clamped on the upper casing 2, an LED lamp 17 and a conductive wire 18 are further arranged on the upper casing 2, one end of the conductive wire 18 is electrically connected with the LED lamp 17, and the other end of the conductive wire 18 is electrically connected with the circuit board 5, the lower shell 1 is provided with a pen clip 19, and the pen clip 19 is clamped on the lower shell 1.

The working process of the novel test pencil is as follows: the user holds the test pencil by hand, then presses the press switch for a long time to open the test pencil, the battery supplies power for the circuit board through the conductive elastic sheet at the moment, the circuit board is electrically connected with the probe rod through the first conductive rubber, the circuit board is electrically connected with the display screen through the second conductive rubber, when the voltage in the induction electric field needs to be measured, the finger of the user is placed on the first contact, then the probe rod is placed in the induction electric field, the voltage of the electric field is displayed on the display screen at the moment, when the voltage on the charged object needs to be measured, the finger is placed on the second contact, then the probe rod is contacted with the charged object, the voltage on the measured charged object is displayed on the display screen at the moment, when the test pencil is used under the dark condition, the maintainer does not need to identify the measured object by means of an illuminating tool, only needs to press the press switch once again to open the LED lamp for illumination, the circuit board supplies power for the LED lamp through the conductor wire this moment, the LED lights after the circular telegram, when the LED lamp need not reuse, press the press switch once more lightly, close the LED lamp, after test pencil used up, press the press switch for a long time and be used for closing the test pencil, after the battery power of test pencil used up, take off the pen clip from the casing down, can change the battery for the test pencil, the replacement process is simple convenient, and after the test pencil stopped using for 3 minutes, the IC chip control test pencil carries out automatic shutdown, play the electric energy of saving, the live time's of extension battery effect.

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 it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A novel test pencil comprises a lower shell (1) and an upper shell (2), wherein the upper shell (2) is connected with the lower shell (1) in a clamping manner, and is characterized in that a probe rod (3), first conductive rubber (4), a circuit board (5), a conductive elastic sheet (6) and a battery (7) are arranged in the lower shell (1), the battery (7) is electrically connected with the circuit board (5) through the conductive elastic sheet (6), the circuit board (5) is electrically connected with one end of the first conductive rubber (4), the other end of the first conductive rubber (4) is electrically connected with the probe rod (3), a press switch (8), a support frame (9), a display screen (10), second conductive rubber (11), a first contact (12) and a second contact (13) are arranged on the circuit board (5), and the second contact (13) is positioned at the rear end of the first contact (12), the first contact (12) is positioned at the rear end of the second conductive rubber (11), one end of the second conductive rubber (11) is electrically connected with the circuit board (5), the other end of the second conductive rubber (11) is electrically connected with a display screen (10), the display screen (10) and the second conductive rubber (11) are clamped in a support frame (9), the support frame (9) is clamped on the circuit board (5), the supporting frame (9) is positioned at the rear end of the press switch (8), the second conductive rubber (11), the first contact (12) and the second contact (13) are electrically connected with the circuit board (5), the circuit board (5) is fixedly connected with the lower shell (1), and an IC chip (14) is further arranged on the circuit board (5), and the IC chip (14) is electrically connected with the circuit board (5).

2. The novel test pencil according to claim 1, characterized in that a front cover plate (15) and a rear cover plate (16) are arranged on the upper casing (2), the rear cover plate (16) is arranged at the rear end of the front cover plate (15), and the front cover plate (15) and the rear cover plate (16) are both clamped on the upper casing (2).

3. The novel test pencil according to claim 1, characterized in that an LED lamp (17) and a conducting wire (18) are further arranged on the upper casing (2), one end of the conducting wire (18) is electrically connected with the LED lamp (17), and the other end of the conducting wire (18) is electrically connected with the circuit board (5).

4. The novel test pencil according to claim 1, characterized in that a pencil clip (19) is arranged on the lower casing (1), and the pencil clip (19) is clamped on the lower casing (1).