CN212514744U

CN212514744U - Novel megger

Info

Publication number: CN212514744U
Application number: CN202020912147.9U
Authority: CN
Inventors: 钟代民; 米娅君
Original assignee: Sichuan Zhongchuan Ende Inspection Co ltd
Current assignee: Sichuan Zhongchuan Ende Inspection Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-02-09
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a novel megohmmeter, including instrument main body, display panel, E end joint, L end joint, connecting wire, end, servo motor, motor switch, portable instrument lid and portable pole, the display panel is arranged on the instrument main body, E end joint and L end joint are connected to the instrument main body, the connecting wire is total two, E end joint or L end joint are connected to two connecting wire one ends, the other end of connecting wire is connected to the end, the end includes first chuck and second chuck, servo motor is connected to the instrument main body; the structure is convenient for taking, lifting or carrying the megger, effectively protects the megger, is convenient for stably reading the megger when in use, increases the use convenience of the megger and prolongs the service life.

Description

Novel megger

Technical Field

The utility model relates to a circuit detects technical field, particularly, relates to a novel megohmmeter.

Background

The megohmmeter is a commonly used measuring instrument for electricians, and is mainly used for checking insulation resistance of electrical equipment, household appliances or electrical lines to the ground and between phases so as to ensure that the equipment, the appliances and the lines work in a normal state and avoid accidents such as electric shock casualties, equipment damage and the like. Megameters are instruments that are commonly used and indispensable in the sectors of electric power, post and telecommunications, communications, electromechanical installations and maintenance, and industrial enterprises that utilize electric power as industrial power or energy. It is suitable for measuring the resistance value of various insulating materials and the insulation resistance of transformers, motors, cables, electrical equipment and the like.

In specific application, the megohmmeter is suitable for measuring the insulation resistance of various transformers, motors, cables, electrical equipment and insulation materials. The megameters in the prior art are detected in a hand-operated mode, detection results are unstable, the results are affected due to different hand-operated speeds of different people, the connector position of the thermal megameters in the prior art generally adopts a clamp, the connector position cannot be applied to more occasions, only two smaller or thinner electronic components can be clamped, the application is limited, and the cost is increased due to the fact that the megameters in the prior art are designed into a portable part independently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel megohmmeter, it can solve current problem, and the stable resistance value of continuous output is applicable to more occasions, facilitates the use.

The embodiment of the utility model is realized like this:

a novel megohmmeter, comprising: the instrument comprises an instrument main body, a display panel, an E-end joint, an L-end joint, connecting lines and end heads, wherein the display panel is a dial plate with data scales, the E-end joint and the L-end joint are two interfaces which are externally connected, the E-end joint and the L-end joint are respectively connected with the connecting lines, the other ends of the two connecting lines are respectively connected with the end heads, each end head comprises a first chuck and a second chuck, the first chuck and the second chuck are same in shape, sawteeth are arranged on the inner sides of the first chuck and the second chuck to tightly press an object to be clamped, the outer sides of the first chuck and the second chuck are arc-shaped, the first chuck and the second chuck are mutually meshed, the cross sections of the first chuck and the second chuck are circular when the first chuck and the second chuck are mutually meshed, the outer diameters of one end to the other end of the first chuck and the second chuck are gradually increased so that the first chuck and the second chuck are clamped in a hole-shaped object to be clamped, the outer sides of the first clamping head and the second clamping head can be in threaded fit with the hole-shaped object to be clamped.

In the preferred embodiment of the present invention, the middle portion of the first chuck is hinged to the middle portion of the second chuck, so that when the tail end of the first chuck and the tail end of the second chuck are pressed, the first chuck is rotatable relative to the second chuck, and when the first chuck and the second chuck are rotated, the one end of the first chuck and the one end of the second chuck are opened to clamp the object to be clamped.

The utility model discloses in the embodiment of the preferred, above-mentioned instrument main part still includes servo motor and motor switch, and servo motor connects in the pivot department of current hand rocker to replace current hand rocker, the motor switch setting is in the side of instrument main part, and the motor switch electricity is connected to servo motor, places the instrument main part in the servo motor.

In the preferred embodiment of the present invention, the novel megohmmeter further comprises a portable meter cover, one end of the portable meter cover is hinged to the meter body and rotatable relative to the meter body, and the edge of the other end of the portable meter cover is provided with a strip-shaped through groove, so that the portable meter cover rotates to the upper side, holds the edge of the portable meter cover by hand, and inserts the through groove to lift the meter body.

In the preferred embodiment of the present invention, the inner side surface of the portable meter cover is provided with a thin gasket, when the portable meter cover rotates to a horizontal position, the middle part of the portable meter cover just covers the display panel, and the thin gasket presses the top surface of the display panel at this time to protect the display panel.

In the preferred embodiment of the present invention, the novel megohmmeter further comprises a portable rod, the portable rod is in a frame shape, one end of the portable rod is hinged to the meter main body, the hinged position is just in the relative position of the portable meter cover and the meter main body, the hinged position is outside the edge of the portable meter cover, the size of the portable rod is just in the way of clamping the portable meter cover, so that when the portable rod rotates to the horizontal position, the outer edge of the portable meter cover is clamped by the frame shape of the portable rod.

In the preferred embodiment of the present invention, when the portable meter cover and the portable rod rotate simultaneously, the edge of the portable meter cover is close to the edge of the portable rod, so that the edge of the portable meter cover and the portable rod can be held by the hand to take the meter body.

The utility model has the advantages that:

the utility model discloses a servo motor rotates steadily and shows numerical value outward steadily, through the mutual interlock of first chuck and second chuck and clip the article that awaits measuring during the use, when stinging through first chuck and second chuck, utilize the outside screw thread of first chuck and second chuck and the article that awaits measuring of hole shape rotatory fixed, test the article that awaits measuring respectively through the inboard and the outside of first chuck and second chuck, protect the display panel through portable instrument table lid, rotate the position that forms the hand and draw through portable pole and portable instrument table lid simultaneously, and conveniently take; the structure is convenient for taking, lifting or carrying the megger, effectively protects the megger, is convenient for stably reading the megger when in use, increases the use convenience of the megger and prolongs the service life.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope.

Fig. 1 is a perspective view of a megger of the present invention;

fig. 2 is a rear view of the megger of the present invention;

icon: 1-a meter body; 2-a display disc; 3-E end joint; 4-L end joint; 5-connecting wires; 6-end; 61-a first chuck; 62-a second chuck; 7-a servo motor; 8-motor switch; 9-portable instrument cover; 10-hand lifting rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

First embodiment

Referring to fig. 1, the present embodiment provides a novel megohmmeter, which includes an instrument main body 1, a display panel 2, an E-end connector 3, an L-end connector 4, two connecting lines 5, an end 6, a servo motor 7, a motor switch 8, a handheld instrument cover 9 and a hand lever 10, where the display panel 2 is disposed on the instrument main body 1, the E-end connector 3 and the L-end connector 4 are connected to the instrument main body 1, the number of the connecting lines 5 is two, one end of each of the two connecting lines 5 is connected to the E-end connector 3 or the L-end connector 4, the other end of each of the connecting lines 5 is connected to the end 6, the end 6 includes a first chuck 61 and a second chuck 62, the servo motor 7 is connected to the instrument main body 1, the motor switch 8 is electrically connected to the servo motor 7, and the handheld instrument cover 9 and the hand lever 10 are respectively connected; the structure is convenient for taking the megger and simultaneously is convenient for stably reading the megger when in use.

The instrument main body 1 is in a square body shape and is an instrument of the existing megohmmeter, an embedded groove for embedding the display disc 2 is arranged at the top of the instrument main body 1, the display disc 2 is arranged in the embedded groove to be fixed, the display disc 2 is a dial plate with data scales, the instrument main body 1 further comprises a servo motor 7 and a motor switch 8, a shaft of the servo motor 7 is connected with a rotating shaft of the existing hand-operated rod to replace the existing hand-operated rod, the existing hand-operated rod is removed in the embodiment, the shaft of the servo motor 7 is fixed with the rotating shaft of the original hand-operated rod, so that the servo motor 7 drives the rotating shaft to rotate, the servo motor 7 rotates at a set speed at a constant speed, the motor switch 8 is arranged on the side surface of the instrument main body, the motor switch 8 is electrically connected to the servo motor 7, the servo motor 7 is arranged in the instrument main body 1, and the original hand-operated structure cannot, one end of the servo motor 7 is just clamped at the motor port arranged at one end of the instrument main body and is fixed.

One end of the instrument main body 1 is provided with two threaded holes, the E-end connector 3 and the L-end connector 4 are respectively embedded into the threaded holes, the E-end joint 3 and the L-end joint 4 are respectively arranged at one end of the instrument body 1 and are mutually spaced, the E-end joint 3 and the L-end joint 4 are two interfaces which are externally connected, the E-end joint 3 and the L-end joint 4 are set to be in the same structure, namely, the E-end connector 3 and the L-end connector 4 are both a threaded rod and a threaded cap buckled on the threaded rod, one end of the connecting wire 5 is fixed on the E-end connector 3 or the L-end connector 4 by screwing the threaded caps, and connecting wire 5 communicates through the inside electronic components electricity of threaded rod and instrument main part 1, and E end connector 3 and L end connector 4 are connected with connecting wire 5 respectively, and connecting wire 5 sets up to two, and the one end of two connecting wires 5 is connected with end 6 respectively, totally two ends 6, and end 6 connects respectively in the contact point department of two differences of the article that awaits measuring.

The end head 6 comprises a first chuck 61 and a second chuck 62, the first chuck 61 and the second chuck 62 are made of metal material, the outer side and the inner side of the first chuck 61 and the second chuck 62 are respectively used for electrically connecting with an object to be measured, the connection structure of the first chuck 61 and the second chuck 62 is the same and the shape is the same, the middle part of the first chuck 61 is hinged with the middle part of the second chuck 62, so that when the tail end of the first chuck 61 and the tail end of the second chuck 62 are pressed, the first chuck 61 can rotate relative to the second chuck 62, one end of the first chuck 61 and one end of the second chuck 62 are opened to clamp the object to be clamped, the middle part of the first chuck 61 and the middle part of the second chuck 62 are respectively provided with pin holes for pins to pass through, the first chuck 61 can rotate relative to the second chuck 62 by using pins to pass through the pin holes, a spring is arranged between the tail end of the first chuck 61 and the tail end of the second chuck 62, and the spring is in a normal state, the tail end of the first chuck 61 and the tail end of the second chuck 62 are just clamped, at the moment, the front end of the first chuck 61 and the front end of the second chuck 62 are mutually clamped, and the spring is compressed when the first chuck 61 rotates relative to the second chuck 62. The inner sides of the first chuck 61 and the second chuck 62 are provided with sawteeth to tightly press the object to be clamped, the width from the front end to the tail end of the first chuck 61 and the second chuck 62 is gradually increased, the first chuck 61 and the second chuck 62 are integrally tapered when being mutually engaged, the outer sides of the first chuck 61 and the second chuck 62 are arc-shaped, the first chuck 61 and the second chuck 62 are mutually engaged and have circular sections, the outer diameter of the integral section from the front end to the tail end of the first chuck 61 and the second chuck 62 is gradually increased so that the first chuck 61 and the second chuck 62 can be clamped on the object to be clamped in a hole shape, the outer sides of the first chuck 61 and the second chuck 62 are provided with threads, so that the outer sides of the first chuck 61 and the second chuck 62 can be in threaded fit with the object to be clamped in a hole shape when the first chuck 61 and the second chuck 62 are mutually engaged, so that the first chuck 61 and the second chuck 62 are mutually engaged and form a taper shape, the first and

second chucks

61 and 62 are screwed to the hole-shaped object to be clamped by means of screw rotation.

The novel megohmmeter further comprises a portable instrument cover 9 and a hand-held rod 10, wherein one end of the portable instrument cover 9 is provided with two protruding connecting ends, the two connecting ends are positioned on two sides of the portable instrument cover 9, the connecting ends are provided with through holes, a pin shaft is arranged at the top end of the instrument main body 1, two ends of the pin shaft are exposed, two ends of the pin shaft penetrate through the through holes of the connecting ends and are hinged to the instrument main body 1, so that the portable instrument cover 9 can rotate relative to the instrument main body 1, the portable instrument cover 9 is integrally plate-shaped, a strip-shaped through groove is formed in the edge of the other end of the portable instrument cover 9, the through groove is arranged in the horizontal direction, fingers penetrate through the through groove to hold the portable instrument cover 9, and when the portable instrument cover 9 rotates upwards, the edge of the portable instrument cover 9 is held by hands and is; the inner side surface of the portable instrument cover 9 is provided with a thin gasket made of soft rubber, when the portable instrument cover 9 rotates to a horizontal position, the middle part of the portable instrument cover 9 just covers the display disc 2, and the thin gasket is pressed on the top surface of the display disc 2 to protect the display disc 2; the portable rod 10 is in a frame shape, one end of the portable rod 10 is hinged to the instrument main body 1, one end of the portable rod 10 is a frame-shaped edge, two sides of the end of the portable rod 10 are respectively provided with a connecting column in a convex mode, a pair of concave holes which are arranged in a concave mode are respectively arranged at opposite positions of the top of the instrument main body 1, the two connecting columns of the portable rod 10 are just clamped into the concave holes, the portable rod 10 can rotate relative to the instrument main body 1, the hinged position of the portable rod 10 and the instrument main body 1 is just positioned at the opposite side position where the portable instrument cover 9 is connected with the instrument main body 1, the hinged position is arranged outside the edge of the portable instrument cover 9, the portable instrument cover 9 is clamped on the inner side by two sides of the portable rod 10, the size of the portable rod 10 is just clamped with the portable instrument cover 9, and when the portable rod 10 rotates to a horizontal position, the frame-shaped inner side of the portable rod 10 clamps the outer edge of the, that is, the portable meter cover 9 and the handle bar 10 are overlapped in the horizontal position, when the portable meter cover 9 and the handle bar 10 rotate simultaneously, the edge of the portable meter cover 9 is close to the edge of the handle bar 10, so that the portable meter cover 9 and the handle bar 10 can be held by hands, and the meter body 1 can be conveniently taken.

To sum up, the embodiment of the utility model discloses stable rotatory and external numerical value of stable display through servo motor, during the use through first chuck and the mutual interlock of second chuck and clip the article that awaits measuring, when interlocking through first chuck and second chuck, utilize the outside screw thread of first chuck and second chuck and the article that awaits measuring of hole shape rotatory fixed, test the article that awaits measuring through the inboard and the outside of first chuck and second chuck respectively, protect the display panel through portable instrument table lid, form the position that the hand was drawn through the simultaneous rotation of portable pole and portable instrument table lid, and conveniently take; the structure is convenient for taking, lifting or carrying the megger, effectively protects the megger, is convenient for stably reading the megger when in use, increases the use convenience of the megger and prolongs the service life.

This description describes examples of embodiments of the invention, and is not intended to illustrate and describe all possible forms of the invention. It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.

Claims

1. A novel megohmmeter, comprising: the instrument comprises an instrument main body, a display panel, an E-end joint, an L-end joint, connecting wires and end heads, wherein the display panel is a dial plate with data scales, the E-end joint and the L-end joint are two interfaces which are externally connected, the E-end joint and the L-end joint are respectively connected with the connecting wires, the other ends of the two connecting wires are respectively connected with the end heads, each end head comprises a first chuck and a second chuck, the first chuck and the second chuck are same in shape, sawteeth are arranged on the inner sides of the first chuck and the second chuck so as to tightly press an object to be clamped, the outer sides of the first chuck and the second chuck are arc-shaped, the cross sections of the first chuck and the second chuck are circular when the first chuck and the second chuck are mutually meshed, the outer diameters of one end to the other end of the first chuck and the other end of the second chuck are gradually increased so as to facilitate the first chuck and the second chuck to be clamped in a hole-shaped object to be clamped, when the first chuck and the second chuck are mutually meshed, the outer sides of the first chuck and the second chuck can form threaded fit with the hole-shaped object to be clamped.

2. The novel megohmmeter of claim 1, wherein the middle portion of the first chuck is hinged to the middle portion of the second chuck, such that when the tail end of the first chuck and the tail end of the second chuck are pressed, the first chuck can rotate relative to the second chuck, and when the first chuck and the second chuck rotate, one end of the first chuck and one end of the second chuck are opened to clamp an object to be clamped.

3. The novel megohmmeter according to claim 2, wherein the meter body further comprises a servo motor and a motor switch, the servo motor is connected to a rotating shaft of an existing hand lever to replace the existing hand lever, the motor switch is arranged on a side face of the meter body, the motor switch is electrically connected to the servo motor, and the meter body is arranged in the servo motor.

4. The novel megohmmeter according to claim 2, further comprising a portable meter cover, wherein one end of the portable meter cover is hinged to the meter body and rotatable relative to the meter body, and a strip-shaped through groove is formed in an edge of the other end of the portable meter cover, so that when the portable meter cover is rotated upwards, a hand holds the edge of the portable meter cover and inserts into the through groove to lift the meter body.

5. A novel megohmmeter as in claim 4 wherein the portable meter cover is provided with a thin spacer on its inside surface, and when the portable meter cover is rotated to a horizontal position, the middle portion of the portable meter cover just covers the display plate, and the thin spacer presses against the top surface of the display plate to protect the display plate.

6. The novel megohmmeter according to claim 4, further comprising a hand lever, wherein the hand lever is frame-shaped, one end of the hand lever is hinged to the meter body, the hinged position is just in the relative position of the hand meter cover and the meter body, the hinged position is outside the edge of the hand meter cover, the hand lever is just in the size of clamping the hand meter cover, and when the hand lever rotates to the horizontal position, the frame-shaped inner side of the hand lever clamps the outer edge of the hand meter cover.

7. The megohmmeter of claim 6, wherein the edges of the hand-held meter cover and the hand-held lever are close to each other when the hand-held meter cover and the hand-held lever rotate simultaneously, so that the hand-held meter cover and the hand-held lever are held by hand to take the meter body.