KR200448770Y1 - A probe for measuring apparatus - Google Patents

Abstract

The present invention relates to a meter probe for measuring instruments that can be wire piercing, the purpose of which is to easily and accurately penetrate the middle of the wire to ground.

According to the meter reading probe 10L (10R) capable of wire piercing according to the present invention for this purpose; Measurement contact rod 20 made of a conductor and the tip is provided in the awl type; The rear end of the measuring contact rod 20 is inserted in the longitudinal direction and fixed to the inside, and is connected to the rear end of the measuring contact rod 20 inside the female end so that the mail terminal 3 of the signal connecting line 2 can be inserted therein. A probe body 30 in which 32 is insert fixed; The probe body 30 is formed in a hollow cylindrical shape so that the probe body 30 can enter therein, and extends in the cross-sectional direction at the tip thereof so as to pass through the inside by inserting the midway of the wire 4 of the object under test from the outside. The slot-shaped holding groove 41 is formed so that the tip of the measuring contact rod 20 can penetrate the wire 4 of the object under the holding-groove 41 as the probe body 30 enters. A wire holder 40 which makes it possible; .

Instrument, Meter, Probe, Measuring Contact Rod, Wire, Piercing

Description

Metering probe for instrument which can be wire pierced {A PROBE FOR MEASURING APPARATUS}

The present invention relates to a metering probe for measuring instruments, and more particularly to a metering probe for measuring instruments capable of piercing the wire can be accurately grounded by passing the probe directly through the wire to be measured.

In general, the electrical, such as voltage, current, and resistance must be measured in the course of performing electrical, electronic and communication tasks related to the electrical system, and the measuring instrument for measuring voltage, current, and resistance is a pair of probes. Multi-meter that can measure various electricity quantity by range adjustment with Ohm-meter, Ampere-Meter and Voltage-Meter which can measure individual electricity through And vehicle troubleshooting devices such as scopes used in vehicles. Such electric quantity meters are roughly classified into a measuring instrument body in which various electric appliances are embedded, and a pair of probes electrically connected to the measuring instrument body.

The probes of the conventional electricity meter have a measuring contact rod having a tip shape in the shape of an awl so as to easily contact the object under test, and a measurement signal output from the object under test by being electrically connected to the other end of the measuring contact rod. The signal connection line for transmitting to the main body, the other end of the measuring contact rod and a portion of the preferred connection line is formed of a molded handle portion. The measuring contact rods of the probes are made of a conductor (for example, copper or iron) so as to conduct electricity with the object to be measured, and the handle portion of the probes is made of an insulator (rubber or synthetic resin) to electrically insulate the measuring contact rods and the signal connection line from each other. It is composed.

When measuring the amount of electricity with the electricity meter, the user grasps each probe handle with both hands, and the ends of the measuring contact rods are in contact with the object to be measured, respectively.

However, in the case of the conventional electrical meter, there is a disadvantage in that the user has to use a pair of hands to contact a pair of probes at the same time, in particular, in the case of the wire under test, the conventional probe measuring contact rod In order to use, there is a inconvenience in using a part of the whole body cover. In addition, after the electric wire is peeled off and the electric quantity measurement is completed, it is cumbersome to wrap the stripped part with an insulating tape or the like in order to prevent short circuit caused by moisture.

The present invention is to solve this problem; It is an object of the present invention to provide a metering probe for an instrument that can be pierced easily to penetrate the measurement contact rod easily without removing the wire covering of the object under test even when the object under test is a wire connected thereto. .

In addition, another object of the present invention is not only to maintain the state that the measuring contact rod penetrates the wire of the object to be measured, as well as measuring instruments capable of piercing the wire to prevent electrical short with other conductors It is to provide a metering probe for.

The present invention for achieving this object is; A meter reading probe for an instrument, which is connected to a mail terminal provided at an end portion of a signal connection line of an instrument and capable of piercing an electric wire through an electric wire of an object to be measured;

The metering probe; A measuring contact rod made of a conductor and having an awl end; A probe body in which a rear end of the measuring contact rod is inserted into and fixed in the longitudinal direction, and a rear end of the measuring contact rod is connected to the rear end of the measuring contact rod, and the female terminal is inserted into and fixed to insert the mail terminal of the signal connecting line; The probe body has an empty cylindrical shape so that the probe body can enter the inside, and a slot-shaped holding-groove extending in the cross-sectional direction at the front end thereof so as to pass the inside of the wire of the object under test from the outside. A wire holder configured to allow the probe body to enter and allow the tip of the measurement contact rod to penetrate the wire of the measurement object held in the holding groove; .

In addition, the present invention; A male thread portion is formed on the outer periphery of the rear end of the probe body for a predetermined period; The male screw portion of the probe body is coupled to the inside of the rear end of the wire holder in a screw manner, and the female screw portion is provided to allow the probe body to enter the wire holder.

In addition, the present invention; The rear end of the probe body is characterized in that the handle portion formed with a non-slip projection is integrally provided.

In addition, the present invention; The inlet side of the holding-groove is formed in a wider taper shape than the inner side to facilitate insertion of the wire of the object under test; An arc groove may be formed to face the inside of the holding groove, so as to maintain a state in which the wire of the measurement object is inserted and seated.

In addition, the present invention; And a projection hole drilled directly under the holding-groove to check whether the tip of the measuring contact rod penetrates the wire of the object under test at the tip of the wire holder.

According to the meter reading probe for measuring the wire piercing according to the present invention; Even when the object under test is a wire connected thereto, there is an effect of making electrical contact by easily penetrating the tip of the measuring contact rod without removing the wire covering of the object under test.

In addition, according to the present invention; While measuring the amount of electricity through the measuring instrument, the tip of the measuring contact rod remains intact as it penetrates the wire of the object under test, and there is an advantage of preventing an electrical short with other conductors even if it is left unattended. .

In addition, according to the present invention; Since the probe body enters with the screw holder coupled to the wire holder, the tip of the measuring contact rod can accurately penetrate the wire of the object under test.

In addition, according to the present invention; Since the wire of the measuring object is held in the slot-shaped holding groove as it is, the tip of the measuring contact rod can penetrate it accurately, and through the projection hole, it is determined whether the tip of the measuring contact rod penetrates the wire of the measuring object correctly. There is an advantage that can be confirmed with the naked eye.

Next, with reference to the accompanying drawings a preferred embodiment according to the present invention will be described in detail. (Schematic description of the accompanying drawings; FIG. 1 is a schematic diagram of an electric meter to which the present invention is applied, and FIGS. 2 and 3 show the structure of a probe probe according to the present invention, and FIGS. 4 to 7 are the present invention. The use of the probe according to the present invention is shown, and Figure 8 shows another state of use of the probe according to the present invention.)

Referring to FIG. 1, the electric quantity measuring instrument to which the present invention is applied includes a measuring base body 1 into which various electronic components are embedded, a pair of signal connecting lines 2 extending outside the measuring base body 1, and the signal connecting line ( It is detachably provided at the end of 2), and is equipped with a pair of probe probe 10L (10R) for contacting the signal source which is a measurement object (henceforth a measurement object). In addition, the end of the measuring instrument signal connecting line (2) is provided with a mail terminal (3) for connecting to the metering probe (10L) (10R), the metering probe (10L) 10R according to the present invention is a signal connecting line (2) It is connected to the male terminal of the male (3), and even in the case of a wire (code) connected to the object under test is configured to be able to easily penetrate and make electrical contact.

2 and 3; The metering probe (10L) (10R) capable of wire piercing according to the present invention is a measuring contact rod 20, the tip is provided in the awl type, and the rear end of the measuring contact rod 20 is insert fixed in the longitudinal direction Inside the rear end, a probe body 30 having a female terminal 32 inserted therein and a hollow cylindrical shape to allow the probe body 30 to enter, and at the front end thereof are wires of the object under test (Fig. 4; 4) having a wire holder 40 in which a holding groove 41 is formed so as to be interlocked from the outside. Detailed structure of each component is as follows.

First, the measuring contact rod 20 is made of a conductor extending to a predetermined length, in the embodiment of the present invention was composed of a pointed tip type iron pin. And the pointed end of the measuring contact rod 20 is to be able to accurately take the measurement site, as well as to be able to easily conduct while penetrating it even in the case of the wire (4).

The probe body 30 has an outer shape of the metering probes 10L and 10R, and the rear end portion of the measuring contact rod 20 is inserted in the longitudinal direction in the axial direction and inserted into the rear end thereof. The female terminal 32 is molded of synthetic resin (insulator) so that the female terminal 32 can be inserted and detached selectively so that the male terminal 3 of (2) can be selectively detached. In the embodiment of the present invention, the female terminal 32 is made of a metal tube type so that the male terminal 3 can be inserted and connected, and welded to the rear end of the measuring contact rod 20 before being inserted into the probe body 30. It is joined by means and integrated. Accordingly, the probe body 30 and the measurement contact rod 20 are formed by inserting the measurement contact rod 20 and the female terminal 32 into the probe body 30 molding mold and molding the probe body 30. ) And the female terminal 32 are integrated.

In addition, the outer end portion of the probe body 30 has a male thread portion 31 is formed in the outer circumference, which is intended to enter the wire holder 40 while rotating in a screwing manner. And the end of the probe body 30 is provided with a handle portion 33 is formed integrally with the non-slip projections 34 along the outer periphery, which is easy to the user in the direction of entering or withdrawing the probe body (30) To rotate.

On the other hand, the wire holder 40 is made of a hollow cylindrical plastic injection molding so that the probe body 30 can be easily entered, the front end of the wire (4) of the object to be inserted from the outside through the inside A slot-shaped holding-groove 41 is formed extending in the cross-sectional direction so as to be able to be hooked. The inlet 41a side of the holding-groove 41 is formed in a tapered shape with a width wider than the inner side to facilitate insertion of the wire 4 of the object under test; Inside the holding-groove 41, an arc groove 41b is formed to face the wire 4 of the object to be inserted / seated. Therefore, as the probe body 30 enters, the tip of the sharp measuring contact rod 20 passes through the wire of the object under the holding-groove 41, which will be described in detail in the description of the use process.

In addition, at the tip of the wire holder 40, the projection hole 42 is directly below the holding-groove 41 so as to confirm whether the tip of the measuring contact rod 20 has passed through the wire 4 of the object under test. Perforated In the embodiment of the present invention by drilling the projection hole 42 of the triangular shape opposite to both ends of the wire holder 40, it is possible to easily check whether the wire (4) penetrated.

In addition, the female screw portion 43 is inserted into the rear end of the wire holder 40 so that the male screw portion 31 of the probe body 30 is screwed, so that the probe body 30 completely enters the wire holder 40. Prepared.

Next will be described with reference to Figures 4 to 8 the state of use and the resulting effects of the meter probe probe for wire piercing according to the present invention configured as described above.

First, as shown in FIG. 4, the electric wire 4 of a to-be-measured object is inserted in the holding groove 41 of the electric wire holder 40. As shown in FIG. Since the inlet 41a side of the holding-groove 41 has a wider taper shape than the inner side, the electric wire 4 can be easily fitted. In addition, the electric wire 4 of the object under measurement inserted into the holding-groove 41 is not easily released unless it is seated in the circular seating groove 41b (see FIG. 2) and an artificial force is applied thereto.

In this state, as shown in FIG. 5, the probe body 30 is inserted into the wire holder 40 in which the wire 4 of the object under test is suspended. After inserting the probe body 30 deeply and holding the handle portion 33 and rotating in the direction to enter the probe body 30, as shown in FIG. 6, the male thread portion 31 of the probe body 30 is shown. ) Is coupled to the female threaded portion 43 of the wire holder 40 in a screw coupling manner so that the probe body 30 is completely inserted into the wire holder 40. At this time, the tip of the measurement contact rod 20 having a sharp tip penetrates through the electric wire 4 of the object under test held in the holding-groove 41, which is connected to the projection hole 42 of the electric wire holder 40. You can check with the naked eye.

Subsequently, as shown in FIG. 7, when the mail terminal 3 of the signal connection line 2 connected to the measuring instrument main body 1 (see FIG. 1) is inserted into the female terminal 32 of the probe body 30. Substantially, the instrument body 1 and the wire 4 of the object under test are electrically connected to measure a desired amount of electricity.

In this manner, even when the conductive portion is the electric wire 4 of the object under test, the measuring contact rod 20 of the probe body 30 can be easily contacted without removing the coating thereof. In addition, since the measuring contact rod 20 of the probe body 30 is not exposed to the outside while penetrating the electric wire 4 of the object to be measured, a situation in which a contact with a neighboring conductor does not occur during the measurement of electricity is accurate. Measurement is made.

In practice, a driving test may be required after connecting a measuring instrument such as a vehicle. In this case, the measuring contact rod of the probe body remains connected to the wire of the object under test without intermittent contact with another.

In addition, when the measured object is to be measured by intermittently photographing the object under test, such as a circuit board, not a wire, as shown in FIG. 8, the female terminal 32 of the probe body 30 (see FIG. 3). ) Can be used by directly inserting the mail terminal 3 of the signal connection line 2 connected to the main body of the instrument.

On the other hand, in the embodiment of the present invention is configured to have a considerable length so that even the wire deep inside the object to be measured through the meter probe probe for wire piercing can be easily measured, as shown in FIG. Even if the entire length of the probe probe is configured to be short, it is a matter of course that the desired purpose of the present invention can be achieved.

1 schematically shows a measuring instrument to which the present invention is applied.

Figure 2 is an exploded perspective view of the meter probe probe capable of wire piercing according to the present invention.

3 is a cross-sectional exploded view of a probe probe according to the present invention.

4 to 7 sequentially show a process in which the meter probe according to the present invention is electrically connected through the wire of the object under test.

8 shows another use state of the probe according to the present invention.

9 shows a metering probe according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

1. Instrument 2. Signal cable

3..Email terminal 4..Electric wire of object

10L, 10R..Measure probe 20..Measure contact rod

30. Probe body 31. Male thread

32. Female terminal 33. Handle part

40 .. Electric wire holder 41. Holding-groove

42. Projection hole 43. Female threaded part

Claims (5)

Metering probe 10L for measuring instrument which is connected to the mail terminal 3 provided at the end of the signal connecting line 2 of the measuring instrument 1 and which can be pierced through the wire 4 of the object to be electrically contacted. 10R); The metering probe (10L) (10R); Measurement contact rod 20 made of a conductor and the tip is provided in the awl type; The rear end of the measuring contact rod 20 is fixed to the inside of the insert in the longitudinal direction, the rear end of the male thread portion 31 is formed in a certain period, the mail terminal (3) of the signal connecting line (2) is removable and the measurement A probe body 30 having an insert fixed to the female terminal 32 connected to the rear end of the contact rod 20 and having a handle portion 33 having anti-slip protrusions 34 formed along an outer circumference; The probe body 30 is formed in an empty cylindrical shape so that the probe body 30 can enter therein, but the male screw part 31 of the probe body 30 is screwed into the rear end, and the probe body 30 enters therein. A female screw portion 43 is provided, and a slot-shaped holding-groove 41 extending in the cross-sectional direction is formed at the end thereof so as to be inserted through the inside of the wire 4 of the object under test from the outside. As the probe body 30 enters, the wire holder 40 which allows the tip of the measuring contact rod 20 to penetrate the wire 4 of the object under the holding-groove 41 is inserted into the probe body 30. Equipped; The holding-groove 41 of the wire holder 40 has a tapered shape having a wider side than the inner side of the inlet 41a so that the wire 4 of the object to be inserted can be easily inserted. Arcuate grooves 41b are formed to face each other so as to keep the wires 4 in the inserted seats thereof; At the tip of the wire holder 40, the projection hole 42 is directly under the holding-groove 41 so that the tip of the measuring contact rod 20 passes through the wire 4 of the object under test. A measuring probe for a measuring instrument capable of wire piercing, characterized in that perforated). delete delete delete delete

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