CN217846417U

CN217846417U - Multifunctional electricity measuring instrument

Info

Publication number: CN217846417U
Application number: CN202221993365.5U
Authority: CN
Inventors: 陈森桂
Original assignee: Zhangzhou Xintianli Electronics Co ltd
Current assignee: Zhangzhou Xintianli Electronics Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-11-18
Anticipated expiration: 2032-08-01

Abstract

The utility model relates to an electrical apparatus structure field especially indicates a multi-functional electrical apparatus that surveys, and this electrical apparatus that surveys includes a shell and a circuit board, and connects end cover, batch head, the pen clip of a shell. The first spring and the second spring are fixed at two ends of the circuit board respectively, the circuit board is embedded into the accommodating groove of the shell, and the battery and the first spring in the pen shell are pressed through the end cover, so that the battery and the circuit board are fixed, and the circuit board, the end cover and the battery are electrically connected. And the screwdriver head is spirally connected into the pen shell and pressed towards the second spring, so that the screwdriver head is electrically connected with the circuit board. The structure facilitates the installation and the disassembly of the screwdriver head and the circuit board, and can be replaced in time after part of components are damaged, thereby reducing the use loss in electrician operation. Additionally, the utility model discloses still dispose microprocessor and first lamp pearl, second lamp pearl on the circuit board, can make the utility model discloses possess multiple survey electric mode, realize more survey electric functions promptly, consequently have extensive range of application.

Description

Multifunctional electricity measuring instrument

Technical Field

The utility model relates to an electricity measuring instrument structure field especially indicates a multi-functional electricity measuring instrument.

Background

A test pencil is a commonly used electrical test instrument. In common structure, the shell of a pen is transparent plastic's material generally to the lamp pearl that sets up on its inside circuit board of observation, and mostly use a screwdriver head (criticize the head promptly) as the test contact, the screwdriver head is fixed with the shell of a pen through the technology mode that the inserts was moulded plastics usually, can't dismantle completely. Meanwhile, the circuit board inside the pen shell cannot be detached. Therefore, after the parts of the electricity measuring instrument such as the test pencil, such as the screwdriver bit or the circuit board, are damaged, the whole part needs to be abandoned and then purchased again, so that the waste is caused, and the use loss in the electrician operation is increased undoubtedly.

Disclosure of Invention

Not enough that provides to above-mentioned background art, the utility model provides a multi-functional survey electric instrument.

The utility model adopts the following technical scheme:

a multifunctional electricity measuring instrument is characterized by comprising a pen shell, a circuit board, end covers and a screwdriver bit, wherein the end covers and the screwdriver bit are respectively connected to two ends of the pen shell; wherein, the first and the second end of the pipe are connected with each other,

a first spring and a second spring are respectively fixed at two ends of the circuit board, a first lamp bead, a second lamp bead and a microprocessor are arranged on the circuit board, the first spring and the second spring are respectively and electrically connected to two different pins of the microprocessor, one ends of the first lamp bead and the second lamp bead are respectively and electrically connected to different pins of the microprocessor, and the other ends of the first lamp bead and the second lamp bead are electrically connected to the end cover in parallel;

the pen shell is internally provided with a containing groove, the pen shell is arranged at the upper end and the lower end of the containing groove and is respectively provided with a battery bin and a threaded hole, the circuit board is arranged along the battery bin and is embedded into the containing groove, the first spring and the second spring are respectively embedded into the battery bin and the threaded hole, the batch head is spirally connected into the threaded hole and presses towards the second spring, the battery is embedded into the battery bin, the end cover is fixed to the rear of the end part of the pen shell and presses towards the battery, and the battery presses towards the first spring.

As an improvement of the electricity measuring instrument, the electricity measuring instrument further comprises a pen clip, wherein the pen clip is provided with a fixing part and a clamping part, the fixing part and the clamping part are arranged in parallel, and the fixing part is used for fixing a blade on one surface facing the clamping part; the pen holder is characterized in that a fixing groove is formed in the side face of the pen shell, a groove opening of the fixing groove and a port at one end of the end cover are connected with the pen shell in the same direction, the fixing portion and the blade are embedded into the rear portion of the fixing groove in a matched mode, the end cover is fixed to the rear portion of the pen shell, and the outer edge of the end cover presses the pen holder.

As the improvement of the electricity measuring instrument, one surface of the clamping part facing the fixing part is provided with a plurality of arc-shaped concave placing grooves, and the diameters of the placing grooves are different.

As the improvement of above-mentioned survey electric instrument, the shell of a pen is close to the anchor clamps one end the anchor ring is equipped with two rings of sunken groove of stepping down, the clamping part is longer than the fixed part, just the clamping part is relative the one end that the fixed part prolongs is equipped with connecting portion, and the both ends of this connecting portion have convex embedding portion, the fixed part is fixed to behind the shell of a pen, two the embedding portion is the different adaptation embedding of embedding two step down the inslot.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: the utility model discloses an in the structure, the circuit board imbed into in the storage tank of casing, the rethread the end cover press to in the shell of a pen the battery with first spring realizes the battery with the circuit board fixed and the circuit board with the end cover the electricity of battery is connected, and this mode can make things convenient for taking out of circuit board to dismantle and change. And the batch head is spirally connected into the pen shell and pressed towards the second spring to realize the electrical connection between the batch head and the circuit board, and the batch head is detached and replaced in this way. Therefore, the utility model discloses a convenient structure criticize the head the installation and the dismantlement of circuit board can in time be changed after partial part damages to survey the use loss of electrical apparatus in the reduction electrician's operation.

Additionally, the utility model discloses still pass through the shell side sets up the fixed slot in order to hold the pen clip, it is also convenient the change of pen clip. Still be in simultaneously the position of pen clip sets up the structure of blade to the insulating cover of convenient cutting electric wire, it is from this visible, the utility model discloses a structure has multiple functions, is favorable to improving the efficiency of electrician's operation.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure of the end cap according to the present invention.

Fig. 3 is a schematic cross-sectional view of one end of the pen casing connected to the end cap.

Fig. 4 isbase:Sub>A schematic cross-sectional view along the directionbase:Sub>A-base:Sub>A in fig. 3.

Fig. 5 is a schematic perspective view of the pen clip.

Fig. 6 is a schematic diagram of the circuit structure of the present invention.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

The utility model discloses a multi-functional survey electric instrument, as shown in figures 1 and 2, this survey electric instrument includes a shell 1 and a circuit board 6, and connects end cover 3, batch head 2, the pen clip 4 of a shell 1. Wherein, end cover 3 with batch first 2 are electrically conductive metal material, end cover 3 is equivalent to the hand touch electrode, batch first 2 is equivalent to the contact electrode, preferably, end cover 3 is the copper product. The end cover 3 and the screwdriver head 2 are respectively fixed at two ends of the pen shell 1, and the pen clip 4 is fixed on the side face of one end, connected with the end cover 3, of the pen shell 1. The circuit board 6 is fixed in the pen casing 1, and a battery 5 is further disposed in the pen casing 1, where the battery 5 may be an LR41 button battery, and three button batteries are disposed in this embodiment.

The LED lamp is characterized in that a first lamp bead, a second lamp bead and a microprocessor IC are arranged on the circuit board 6, the first lamp bead and the second lamp bead are lamp sources with different colors, in addition, the circuit board 6 is provided with two first lamp beads and two second lamp beads, specifically, the first lamp bead is arranged on the LED1 and the LED2 in the attached drawing 6, and the second lamp bead is arranged on the LED3 and the LED4 in the attached drawing 6. A first spring 61 and a second spring 62 are respectively fixed at two ends of the circuit board 6, the first spring 61 and the second spring 62 can be fixedly connected to a substrate of the circuit board 6 by soldering, so as to realize electrical connection between the first spring 61 and the second spring 62 and the circuit board 6, specifically, the first spring 61 is electrically connected to a pin No. 1 of the microprocessor, and the second spring 62 is electrically connected to a pin No. 3 of the microprocessor IC. One ends of the first lamp bead and the second lamp bead are electrically connected to the battery 5 in parallel, and the other ends of the first lamp bead and the second lamp bead are electrically connected to two other different pins (namely, pin 5 and pin 6) of the microprocessor IC respectively.

As shown in fig. 3 and 4, a receiving groove 101 is formed in the pen casing 1, a width of the receiving groove 101 is slightly larger than a width of the circuit board 6, so that the circuit board 6 is not shaken after being embedded into the receiving groove 101, and a recess is formed on a side surface of the receiving groove 101 for receiving components such as the microprocessor IC, the first lamp bead, and the second lamp bead. The upper end and the lower end of the accommodating groove 101 of the pen shell 1 are respectively provided with a battery compartment 102 and a threaded hole 103. With this structure, when assembling, referring to fig. 2, the circuit board 6 is inserted into the receiving groove 101 along the battery compartment 102, so that the first spring 61 and the second spring 62 are respectively inserted into the battery compartment 102 and the threaded hole 103; the battery 5 is embedded into the battery chamber 102, and after the end cover 3 is fixed to the end of the pen shell 1, the end cover 3 presses the battery 5, so that the battery 5 presses the first spring 61, and the battery 5 and the circuit board 6 are fixed; and then the batch head 2 is screwed into the threaded hole 103 and pressed towards the second spring 62, and the batch head 2 and the threaded hole 103 are screwed and fastened after the circuit board 6 is fixed, so that the batch head 2 can be fixed.

Can know through above assembly structure, the utility model discloses a structure is convenient to survey the installation of electrical apparatus, and during the dismantlement, only need reverse operation can, also very convenient. Consequently the utility model discloses can criticize first 2 or in time change after partial parts such as circuit board 6 damage, need not whole abandonment, consequently can reduce the use loss of survey electric instrument among the electrician's operation.

In the above structure, the end cap 3 may be fixed on the top of the battery compartment 102 in a manner of screw connection, and after the end cap 3 is fixed on the top of the battery compartment 102, it may be pressed against the battery 5 and against the circuit board 6 by the first spring 61, so as to fix the battery 5 and the circuit board 6, and at the same time, the end cap 3 may be electrically connected to the battery 5, the first lamp bead and the second lamp bead, and the pin of the microprocessor IC by the first spring 61. In addition, after the batch head 2 is fixed, the batch head 2 can be electrically connected to the pin of the microprocessor IC through the second spring 62, so as to input the detection voltage to the microprocessor IC.

The microprocessor IC can be a single chip microcomputer controller, a highest voltage threshold and a lowest voltage threshold are set in the microprocessor IC, if the measured voltage is lower than the lowest threshold, the microprocessor IC outputs signals to control the first lamp beads to be lightened, and if the measured voltage is higher than the highest threshold, the microprocessor IC outputs signals to control the second lamp beads to be lightened. Specifically, it can be measured by the following examples:

1. when the induction test mode is used, the end cover 3 is touched by a hand, the screwdriver head 2 is used for inducting a charged body, and the induction voltage passes through the end cover 3 from the screwdriver head 2 and then passes through the body of an operator to generate a loop. When the body senses, if the voltage that batch head 2 picked up obtained with the voltage between end cover 3 is not high, be equivalent to be in the safe voltage region that sets up in the microprocessor IC, between minimum voltage threshold and the maximum voltage threshold promptly, microprocessor IC control first lamp pearl (being LED1, LED 2) are lighted this moment to this visual suggestion that forms the test result.

2. When the contact test mode is used, the end cover 3 is touched by hands, and the screwdriver head is used for contacting a charged body, so that a contact voltage is generated from the screwdriver head 2, the end cover 3 and the body of an operator to a ground circuit. When the voltage of the charged body reaches the set highest voltage threshold or higher, the charged body is equivalent to be in a dangerous voltage area determined in the microprocessor IC, and the microprocessor IC controls the second lamp beads (namely the LEDs 3 and the LEDs 4) to flicker so as to form visual prompt of a test result.

3. When a loop is measured, one hand of the hand mold touches the end cover 3, the other end of the hand mold is not provided with an electric conductor, then the screwdriver head 2 is used for contacting the other end of the conductor, (or the other hand of the hand mold is the end cover 3, and the other hand of the hand mold is the screwdriver head 2), so that a loop is formed between the screwdriver head 2 and the end cover 3 of the electricity measuring instrument, and at the moment, the first lamp bead is lightened, so that a visual prompt of a test result is formed.

According to the above embodiment, the utility model discloses can realize multiple survey electric mode, realize more survey electric functions promptly, consequently have extensive range of application.

Referring to fig. 5 again, the clip 4 has a fixing portion 41 and a holding portion 42, and the fixing portion 41 and the holding portion 42 are arranged in parallel, that is, the clip 4 forms a structure like a letter '21274'. And the fixing portion 41 fixes a blade 44 on a side facing the clamping portion 42, the blade 44 cutting an insulation sheath outside the wire. The side of the pen shell 1 connected to one side of the end cover 3 is provided with a fixing groove 104, a notch of the fixing groove 104 and a port of one end of the pen shell 1 connected to one end of the end cover 3 face towards the same direction, the fixing portion 41 and the blade 44 are embedded into the fixing groove 104 in a matching manner, the end cover 3 is fixed to the rear of the pen shell 1, and the outer edge 31 of the end cover 3 presses the pen clip 4, so that the fixing of the pen clip 4 is realized, and the pen clip 4 is prevented from falling off. When the pen clip 4 is used, after the end cover 3 is detached, the pen clip 4 is taken out, the fixing portion 41 and the clamping portion 42 are unfolded, the electric wire is sleeved between the fixing portion 41 and the clamping portion 42, the fixing portion 41 and the clamping portion 42 are pressed by applying proper force, the pen clip 4 or the electric wire is rotated, the insulating sleeve of the electric wire is cut off by the blade 44, and therefore a copper wire inside the electric wire is exposed, and the electric wire is connected to a conductor conveniently. Further, clamping part 42 orientation the one side of fixed part sets up the sunken standing groove 401 of a plurality of arcs, standing groove 401 is used for placing the electric wire that waits to cut, and each standing groove 401's diameter is all inequality, makes with this the utility model is suitable for a cut the electric wire of multiple external diameter.

In addition, the pen shell 1 is close to the anchor ring of 4 one ends of pen clip is equipped with two rings of sunken groove 105 of stepping down, the clamping part 42 is longer than fixed part 41, just the clamping part 42 is relative the one end that fixed part 41 prolongs is equipped with connecting portion 43, and the both ends of this connecting portion 43 have convex embedding part 431, fixed part 41 is fixed to behind the pen shell 1, two embedding part 431 adaptation embedding two respectively in the groove 105 of stepping down. Work as the pen clip 4 is fixed extremely behind the pen shell 1, if need carry the utility model discloses the time, can with in the pocket of pen shell 1 embedding to clothes or knapsack, and the pen clip 4 the clamping part 42 then exposes outside the cloth, this moment two of connecting portion 43 embedding portion 431 is embedded into two respectively the structure in the groove 105 of stepping down can press the cloth to two in the groove 105 of stepping down, this mode is favorable to the utility model discloses fix in the pocket more firmly.

To sum up, in the structure of the utility model, end cover 3 press to in the shell of a pen 1 battery 5 with circuit board 6 realizes battery 5 with circuit board 6's is fixed, and criticize first 2 screwed connection to in the shell of a pen 1, and press to second spring 62 realizes criticize first 2 with circuit board 6's electric connection conveniently surveys electric instrument's installation and dismantlement, can in time change after partial part damages to survey electric instrument's use loss in the reduction electrician's operation. And the utility model discloses a position of pen-clip 4 sets up the structure of blade 43 to the insulating cover of convenient cutting electric wire, from this can, the utility model discloses a structure has multiple functions, is favorable to improving the efficiency of electrician's operation.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims

1. A multifunctional electricity testing instrument is characterized by comprising a pen shell, a circuit board, end covers and a screwdriver bit, wherein the end covers and the screwdriver bit are respectively connected to two ends of the pen shell; wherein, the first and the second end of the pipe are connected with each other,

2. A multifunctional electrical testing apparatus as in claim 1, wherein: the electricity testing instrument further comprises a pen clip, wherein the pen clip is provided with a fixing part and a clamping part, the fixing part and the clamping part are arranged in parallel, and the fixing part is used for fixing a blade on one surface facing the clamping part; the pen holder is characterized in that a fixing groove is formed in the side face of the pen shell, a groove opening of the fixing groove and a port at one end of the end cover are connected with the pen shell in the same direction, the fixing portion and the blade are embedded into the rear portion of the fixing groove in a matched mode, the end cover is fixed to the rear portion of the pen shell, and the outer edge of the end cover presses the pen holder.

3. A multifunctional electrical apparatus as claimed in claim 2, wherein: the clamping part towards the one side of fixed part sets up the sunken standing groove of a plurality of arcs, each the diameter of standing groove is all inequality.

4. A multifunctional electrical apparatus as claimed in claim 2 or 3, wherein: the pen shell is close to the anchor ring of pen clip one end is equipped with two rings of sunken groove of stepping down, the clamping part is longer than the fixed part, just the clamping part is relative the one end of fixed part extension is equipped with connecting portion, and the both ends of this connecting portion have convex embedding portion, the fixed part is fixed to behind the pen shell, two the embedding part is the adaptation embedding two respectively step down the inslot.