CN211627637U

CN211627637U - Universal meter

Info

Publication number: CN211627637U
Application number: CN201922487402.XU
Authority: CN
Inventors: 陈智勇; 唐明跃; 马晓强; 徐波; 张晋玮; 罗琳; 周微; 牟祖艳; 周蜜; 谢燕; 高丽; 王媛; 彭洪林; 涂亮; 宋道军; 钟诚; 龚航
Original assignee: Chongqing Xiyuan Electric Power Installation Engineering Co ltd; STATE GRID CHONGQING ELECTRIC POWER COMPANY BISHAN POWER SUPPLY BRANCH; State Grid Corp of China SGCC
Current assignee: Chongqing Xiyuan Electric Power Installation Engineering Co ltd; STATE GRID CHONGQING ELECTRIC POWER COMPANY BISHAN POWER SUPPLY BRANCH; State Grid Corp of China SGCC
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-02
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an universal meter, which comprises a body and a meter pen, wherein the meter pen is connected to the body through a wire, the meter pen comprises a pen tube, a clamping part in a scissor structure is arranged at the bottom end of the pen tube, the clamping part comprises two clamping pieces which are symmetrically arranged and hinged with each other, one end of each clamping piece is provided with an arc-shaped sunken part, the universal meter also comprises a driving part in an X-shaped structure, and the driving part is composed of two driving plates which are crossed with each other and hinged at the crossed point; the two tensioning wheels are arranged on two sides of the driving part, so that when the driving rope is pulled upwards, the two driving plates are far away from each other and are stretched, and the two sunken parts of the two clamping pieces are stretched; the driving rope extends upwards in the pen tube and extends out of the pen tube along the radial direction of the pen tube after passing through a supporting wheel to be connected to the reed, the reed is fixedly connected to the outer wall of the pen tube, and rubber is arranged outside the reed in a covering mode. This universal meter with wait to detect terminal contact reliable and stable, convenient to use.

Description

Universal meter

Technical Field

The utility model belongs to the technical field of the electric power detects the instrument, especially, relate to an universal meter.

Background

The multimeter is a magnetoelectric instrument with a rectifier and capable of measuring a plurality of electrical parameters such as alternating current, direct current, voltage, resistance and the like. The current multimeter mainly comprises a body and a meter pen, wherein the body consists of a meter head, a measuring circuit, a change-over switch and the like, and the meter pen is used for connecting a terminal to be detected. Multimeters are the most basic tools in the field of electronic testing, and are also widely used testing instruments. At present universal meter's pen-shape is an insulating tubulose body tip area metal probe rod to constitute more, its structure is similar to the ball-point pen shape, consequently call the pen-shape, need people's both hands to hold the pen-shape and lean on to wait to detect the terminal or the corresponding position such as in the jack when detecting, can detect, but during the use, lean on when only holding tightly by the hand and lean on the tight power of leaning on the terminal and be difficult to keep effective contact well, and the pen-shape is all held to both hands and is leaned on tight terminal, so just key-presses such as switch on the inoperable body, the reading is also inconvenient, and when having now to examine time measuring, many places use the metal probe rod really also inconvenient, be difficult to guarantee effectual contact.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned technical problem, provide an universal meter, this universal meter has solved the pen-shape metre of universal meter when current circuit detects effectively and has waited the terminal contact unstability, awkward technical problem.

The technical scheme of the utility model as follows: the invention provides a multimeter, which comprises a body and a stylus, wherein the stylus is connected to the body through a wire, the stylus comprises a pen tube, the bottom end of the pen tube is provided with a clamping part in a scissor structure, the clamping part comprises two clamping pieces which are symmetrically arranged and hinged with each other, one end of each clamping piece is provided with an arc-shaped concave part, the two concave parts clamp a guide pillar to be tested when being closed, the other end of each clamping piece is provided with a hinged shaft used for being hinged by the end part of the clamping piece, the hinged shaft is arranged in the port of the pen tube, the other ends of the two clamping pieces are connected through an elastic piece, and the elastic piece pulls the two clamping pieces to the splicing part of the two concave parts under the non-working state;

the driving part is in an X-shaped structure and consists of two driving plates which are crossed with each other and hinged at the crossed point; the end parts of two driving plates at one end of the driving part are respectively hinged with two ends of the two clamping pieces, the end parts of the two driving plates at the other end of the driving part are respectively connected with one end of a pull rope, the other ends of the two pull ropes are respectively led out upwards after bypassing a tensioning wheel and are connected with the insulated driving rope, and the two tensioning wheels are arranged at two sides of the driving part so that the two driving plates are far away from each other and are stretched when the driving rope is pulled upwards to ensure that two sunken parts of the two clamping pieces are stretched;

the driving rope extends upwards in the pen tube and extends out of the pen tube along the radial direction of the pen tube after passing through a supporting wheel to be connected onto the reed, the reed is fixedly connected onto the outer wall of the pen tube, a rubber sheet is arranged outside the reed in a covering mode, and when the reed is squeezed by pressing the rubber sheet, the reed pulls the driving rope outwards towards the pen tube.

The utility model has the advantages that: the utility model discloses a set up the clamping part and come to carry out the centre gripping to the terminal that awaits measuring, and only need hold the pen holder top department of pen-shape metre, the thumb is pressed the rubber and is pressed the reed, the pulling driving rope can open two drive plates of driver part, thereby make two articulated clamping pieces open with it, so that the cover is on waiting to detect the terminal, then loosen the reed, two clamping pieces draw close each other under the elastic component effect, thereby will wait to detect the terminal and tightly press from both sides firmly, it is very convenient to use, simple structure easily makes.

Drawings

Fig. 1 is a schematic structural diagram of one embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the stylus.

Fig. 3 is a partially enlarged view of the stylus.

Fig. 4 is a partially enlarged view of one of the clamping portions.

Element number description: the pen tube comprises a pen tube 1, a clamping piece 2, a concave part 201, a notch 202, a clamping plate 203, a notch 204, a hinge shaft 3, an elastic piece 4, a driving plate 5, a hinge pin 6, a tensioning wheel 7, a pull rope 8, a strip-shaped slideway 9, a driving rope 10, a reed 11, a rubber sheet 12 and a supporting wheel 13.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

The invention will be further explained with reference to the following figures and examples:

the embodiment provides a universal meter, see fig. 1, including body and pen-shape metre, the pen-shape metre passes through the wire and is connected to on the body, the pen-shape metre includes the pen tube, as shown in fig. 2-3, installs the clamping part that is the scissors structure in the bottom of pen tube, and the clamping part sets up and two articulated clamping pieces each other including the symmetry, and the one end of two clamping pieces has curved depressed part, and two depressed parts clip the guide pillar that awaits measuring when drawing close together, and the other end of two clamping pieces is equipped with by its tip department and is used for articulated shaft, and this articulated shaft is installed in the pen tube port, two connect through the elastic component between the other end of clamping piece, and this elastic component draws two clamping pieces to two depressed part amalgamation departments under non-operation. The meter pen of the multimeter also comprises a driving part in an X-shaped structure, wherein the driving part is composed of two driving plates which are mutually crossed and hinged at the crossed point; two drive plate tip of drive unit one end with the both ends of two clamping pieces are articulated respectively, and two drive plate tip of its other end are connected with one of them one end of a stay cord respectively, two the other end of stay cord is drawn forth upwards and is linked to each other with insulating drive rope after bypassing a tensioning wheel respectively, two tensioning wheel is installed in drive unit's both sides, so that upwards the pulling two drive plates keep away from each other during the drive rope, open and make two depressed parts of two clamping pieces open. The driving rope extends upwards in the pen tube and extends out of the pen tube along the radial direction of the pen tube after passing through a supporting wheel to be connected onto the reed, the reed is fixedly connected onto the outer wall of the pen tube, a rubber sheet is arranged outside the reed in a covering mode, and when the reed is squeezed by pressing the rubber sheet, the reed pulls the driving rope outwards towards the pen tube. When using, press the reed with the thumb through the rubber skin and can drive two clamping pieces and open, then will open the clamping piece cover on the terminal, loosen the reed after, the terminal just is cliied by two clamping pieces, alright measure, the reading with the body of operation universal meter this moment, it is very convenient to use, can guarantee again that the terminal of wiring is cliied firmly, compare in current metal probe rod directly lean on the terminal will be much more reliable.

As a detailed implementation, referring to fig. 3, two ends of the elastic member are respectively connected to the ends of the two hinged rods of the driving member and the clamping portion, and the elastic member is respectively arranged at two ends of the hinged rods, so that the two clamping pieces have sufficient restoring force to be quickly restored to the original position and closed after the spring leaves are released, and the terminal is better clamped; in addition, the clamping force can be increased in the following manner: the reed is arc-shaped, the concave surface of the reed faces the surface of the pen tube, a reset elastic sheet (not shown in the figure) is connected between the concave surface and the surface of the pen tube, the reset elastic sheet can be a cylindrical spring, and the reset elastic sheet jacks the reed to an initial position after the pressure of the reed is released. Meanwhile, preferably, strip-shaped slideways are respectively arranged in the two opposite side walls of the pen tube along the axial direction of the pen tube, and two ends of the hinge pin of the driving part respectively extend into the two strip-shaped slideways so as to guide the driving part to move up and down in the pen tube.

In order to make the clamping pieces have more abundant clamping functions and better adapt to terminals with different sizes, as shown in fig. 2, two clamping pieces are respectively provided with a notch in opposite directions at the position close to the hinge shaft, the two notches can be spliced into an elliptical hole, and the elliptical hole can clamp the terminals with different sizes. In order to further improve the clamping performance and adapt to more wiring terminals, such as sheet terminals, as shown in fig. 4, a clamping plate is arranged at one end of the concave part, which deviates from the hinge shaft, the two clamping plates are tightly attached to each other when the two clamping plates are closed, circular arc notches are arranged on the opposite surfaces of the two clamping plates along the length direction of the opposite surfaces of the two clamping plates, and the notches on each clamping plate comprise large notches and small notches which are arranged at intervals and have different sizes so as to improve the friction force during clamping, so that the clamping is tighter.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a multimeter, includes body and pen-shape metre, the pen-shape metre passes through the wire to be connected to on the body, its characterized in that: the meter pen comprises a pen tube, a clamping part in a scissor structure is mounted at the bottom end of the pen tube, the clamping part comprises two clamping pieces which are symmetrically arranged and hinged with each other, one ends of the two clamping pieces are provided with arc-shaped concave parts, the guide pillar to be tested is clamped when the two concave parts are closed, the other ends of the two clamping pieces are provided with hinged shafts for hinging by the end parts of the two clamping pieces, the hinged shafts are mounted in ports of the pen tube, the other ends of the two clamping pieces are connected through an elastic piece, and the elastic piece pulls the two clamping pieces to the splicing part of the two concave parts under the non-working state;

2. The multimeter of claim 1, wherein: the two ends of the elastic piece are respectively connected to the ends of the two hinged rods of the driving part and the clamping part, and the two ends of the hinged rod of the elastic piece are respectively provided with one elastic piece.

3. The multimeter of claim 1, wherein: the pen tube is characterized in that strip-shaped slideways are respectively arranged in the two opposite side walls of the pen tube along the axial parallel direction of the pen tube, and two ends of the hinge pin of the driving part respectively extend into the two strip-shaped slideways so as to guide the driving part to move up and down in the pen tube.

4. The multimeter of claim 1, wherein: two clamping pieces are respectively provided with a notch in opposite directions near the hinge shaft, and the two notches can be spliced into an elliptical hole.

5. The multimeter of claim 1, wherein: the depressed part deviates from the one end of articulated shaft has a splint, and two splint hug closely each other when two clamping pieces are closed, have the circular arc opening along its length direction on the opposite face of two splint, and the opening on every splint includes big opening and the little opening of interval arrangement and variation in size.

6. The multimeter of claim 1, wherein: the reed is arc-shaped, the concave surface of the reed faces the surface of the pen tube, a reset elastic sheet is connected between the concave surface and the surface of the pen tube, and the reset elastic sheet jacks the reed to an initial position after the pressure of the reed is released.