CN210166425U - Novel multimeter - Google Patents

Novel multimeter Download PDF

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Publication number
CN210166425U
CN210166425U CN201921016696.1U CN201921016696U CN210166425U CN 210166425 U CN210166425 U CN 210166425U CN 201921016696 U CN201921016696 U CN 201921016696U CN 210166425 U CN210166425 U CN 210166425U
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CN
China
Prior art keywords
terminal
pen point
connecting terminal
jack
end part
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Active
Application number
CN201921016696.1U
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Chinese (zh)
Inventor
曾文其
梅冬芳
蓝威源
罗海波
陈铁森
曾伟铭
谢文敏
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Guangdong Power Grid Co Ltd
Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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Application filed by Guangdong Power Grid Co Ltd, Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN201921016696.1U priority Critical patent/CN210166425U/en
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Publication of CN210166425U publication Critical patent/CN210166425U/en
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Abstract

The embodiment of the utility model discloses a novel multimeter, wherein gauge head components are respectively assembled on a positive electrode gauge pen jack and a negative electrode gauge pen jack of a multimeter main body; the gauge outfit assembly comprises a test lead, a terminal hollow pen point, a terminal solid pen point, an aviation cable pen point and a grounding clamp; the test lead comprises a lead main body, a jack connector and a plug connector, wherein the lead main body comprises a lead metal wire core and a lead insulation outer cover; the terminal hollow pen point comprises a hollow pen point connecting terminal and a hollow pen point terminal insulating outer cover; the terminal solid pen point comprises a solid pen point connecting terminal and a solid pen point terminal insulating outer cover; the aviation cable pen point comprises a cable pen point connecting terminal and a cable pen point terminal insulating outer coating; the grounding clip comprises a grounding clip insulator, a grounding clip connecting terminal and a grounding clip contact piece. The utility model has the advantages of novel design and convenient use.

Description

Novel multimeter
Technical Field
The utility model relates to an universal meter technical field especially relates to a new-type universal meter.
Background
The multimeter is an electrician tool with very high use frequency, and is necessary for electricians. The current multimeter has only two universal test wires, and the pen point of the test wire is invariable.
It should be noted that, because the universal meters are only provided with two universal test leads, in the operation and maintenance of the automatic circuit breaker on the distribution network column, when the universal meters are required to measure voltage or make-and-break measurement, but two hands are required to hold the meter pen points in the measurement process, when other operations are required, the operations cannot be performed, and only the assistance of a second worker is needed, but because two people work on the column of the telegraph pole by using an insulating ladder, a greater safety risk exists; and because the space of the automatic switch control box on the distribution net post is narrow, the automatic switch control box is not beneficial to two people to work simultaneously.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model discloses new-type universal meter, this new-type universal meter modern design, convenient to use, and can improve security and the efficiency of automatic circuit breaker maintenance operation on joining in marriage the net post effectively.
The embodiment of the utility model provides a novel multimeter, which comprises a multimeter main body, wherein the multimeter main body is provided with a positive electrode meter pen jack and a negative electrode meter pen jack, and meter head components are respectively assembled on the positive electrode meter pen jack and the negative electrode meter pen jack of the multimeter main body;
the gauge outfit assembly comprises a test lead, a terminal hollow pen point, a terminal solid pen point, an aviation cable pen point and a grounding clamp; the test wire comprises a wire main body, the wire main body comprises a wire metal wire core, a wire insulation outer cover is covered on the periphery of the wire metal wire core, a jack connector is arranged at the rear end part of the wire main body and comprises a jack connecting terminal, a jack terminal insulation outer cover is covered on the periphery of the jack connecting terminal, the jack terminal insulation outer cover and the wire insulation outer cover are of an integral structure, and the rear end part of the jack connecting terminal protrudes and extends to the rear end side of the jack terminal insulation outer cover; the front end part of the wire main body is provided with a plug-in connector which comprises a plug-in connecting terminal, the periphery of the plug-in connecting terminal is covered with a plug-in terminal insulating coat, the plug-in terminal insulating coat and the wire insulating coat are integrated into a whole, the front end part of the plug-in connecting terminal protrudes and extends to the front end side of the plug-in terminal insulating coat, the front end part of the wire metal wire core is electrically connected with the plug-in connecting terminal, and the rear end part of the wire metal wire core is electrically connected with the jack connecting terminal;
the terminal hollow pen point comprises a hollow pen point connecting terminal, the periphery of the hollow pen point connecting terminal is covered with a hollow pen point terminal insulation coat, the rear end part of the hollow pen point connecting terminal is provided with a hollow pen point opposite insertion hole with an opening facing backwards, the front end part of the hollow pen point connecting terminal protrudes and extends to the front end side of the hollow pen point terminal insulation coat, and the front end part of the hollow pen point connecting terminal is provided with a hollow pen point test hole with an opening facing forwards;
the solid nib of the terminal comprises a solid nib connecting terminal, the periphery of the solid nib connecting terminal is wrapped with a solid nib terminal insulation coat, the rear end part of the solid nib connecting terminal is provided with a solid nib opposite jack with a rear opening, and the front end part of the solid nib connecting terminal protrudes and extends to the front end side of the solid nib terminal insulation coat;
the aviation cable pen point comprises a cable pen point connecting terminal, the periphery of the cable pen point connecting terminal is wrapped with a cable pen point terminal insulation coat, the rear end part of the cable pen point connecting terminal is provided with a cable pen point opposite insertion hole which is opened towards the rear, and the front end part of the cable pen point connecting terminal protrudes and extends to the front end side of the cable pen point terminal insulation coat;
the grounding clamp comprises a clamp-shaped grounding clamp insulator, a grounding clamp connecting terminal is arranged in the rear end of the grounding clamp insulator, a grounding clamp pair jack which is opened towards the rear is arranged at the rear end of the grounding clamp connecting terminal, grounding clamp contact pieces are respectively arranged at two clamping ends of the grounding clamp insulator, and each grounding clamp contact piece is respectively electrically connected with the grounding clamp connecting terminal; the inner diameter value of the hollow pen head to the jack, the inner diameter value of the solid pen head to the jack, the inner diameter value of the aviation pen head to the jack and the inner diameter value of the grounding clamp to the jack are respectively equal to the outer diameter value of the front end part of the plug-in connection terminal.
Optionally, the jack connection terminal and the plug connection terminal are copper terminals respectively.
Optionally, the hollow pen point connecting terminal is a copper terminal.
Optionally, the solid nib connection terminal is a copper terminal.
Optionally, the cable nib connection terminal is a copper terminal.
Optionally, the ground clip connection terminal is a copper terminal.
Optionally, each of the ground clip contact pads is a copper sheet.
According to the technical solution provided by the utility model, the embodiment of the utility model has the following advantage:
the embodiment of the utility model provides a novel multimeter, which comprises a multimeter main body, wherein the multimeter main body is provided with a positive electrode meter pen jack and a negative electrode meter pen jack, and meter head components are respectively assembled on the positive electrode meter pen jack and the negative electrode meter pen jack of the multimeter main body; the gauge outfit assembly comprises a test lead, a terminal hollow pen point, a terminal solid pen point, an aviation cable pen point and a grounding clamp; the test wire comprises a wire main body, the wire main body comprises a wire metal wire core, a wire insulation outer cover is covered on the periphery of the wire metal wire core, a jack connector is arranged at the rear end part of the wire main body and comprises a jack connecting terminal, a jack terminal insulation outer cover is covered on the periphery of the jack connecting terminal, the jack terminal insulation outer cover and the wire insulation outer cover are of an integral structure, and the rear end part of the jack connecting terminal protrudes and extends to the rear end side of the jack terminal insulation outer cover; the front end part of the wire main body is provided with a plug-in connector which comprises a plug-in connecting terminal, the periphery of the plug-in connecting terminal is covered with a plug-in terminal insulating coat, the plug-in terminal insulating coat and the wire insulating coat are integrated into a whole, the front end part of the plug-in connecting terminal protrudes and extends to the front end side of the plug-in terminal insulating coat, the front end part of the wire metal wire core is electrically connected with the plug-in connecting terminal, and the rear end part of the wire metal wire core is electrically connected with the jack connecting terminal; the terminal hollow pen point comprises a hollow pen point connecting terminal, the periphery of the hollow pen point connecting terminal is covered with a hollow pen point terminal insulation coat, the rear end part of the hollow pen point connecting terminal is provided with a hollow pen point opposite insertion hole with an opening facing backwards, the front end part of the hollow pen point connecting terminal protrudes and extends to the front end side of the hollow pen point terminal insulation coat, and the front end part of the hollow pen point connecting terminal is provided with a hollow pen point test hole with an opening facing forwards; the solid nib of the terminal comprises a solid nib connecting terminal, the periphery of the solid nib connecting terminal is wrapped with a solid nib terminal insulation coat, the rear end part of the solid nib connecting terminal is provided with a solid nib opposite jack with a rear opening, and the front end part of the solid nib connecting terminal protrudes and extends to the front end side of the solid nib terminal insulation coat; the aviation cable pen point comprises a cable pen point connecting terminal, the periphery of the cable pen point connecting terminal is wrapped with a cable pen point terminal insulation coat, the rear end part of the cable pen point connecting terminal is provided with a cable pen point opposite insertion hole which is opened towards the rear, and the front end part of the cable pen point connecting terminal protrudes and extends to the front end side of the cable pen point terminal insulation coat; the grounding clamp comprises a clamp-shaped grounding clamp insulator, a grounding clamp connecting terminal is arranged in the rear end of the grounding clamp insulator, a grounding clamp pair jack which is opened towards the rear is arranged at the rear end of the grounding clamp connecting terminal, grounding clamp contact pieces are respectively arranged at two clamping ends of the grounding clamp insulator, and each grounding clamp contact piece is respectively electrically connected with the grounding clamp connecting terminal; the inner diameter value of the hollow pen head to the jack, the inner diameter value of the solid pen head to the jack, the inner diameter value of the aviation pen head to the jack and the inner diameter value of the grounding clamp to the jack are respectively equal to the outer diameter value of the front end part of the plug-in connection terminal. Through the structure design, the utility model has the advantages of novel in design, convenient to use, and can improve security and the efficiency that the operation was maintained to automatic circuit breaker on joining in marriage the net post effectively.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
In fig. 1, included are:
1-test wire 11-wire body
111-wire insulation external cover 12-jack connector
121-jack connection terminal 122-jack terminal insulating outer cover
13-plug-in connector 131-plug-in connection terminal
132-plug terminal insulation external cover 2-terminal hollow pen point
21 hollow nib connecting terminal 211 hollow nib to jack
22-insulating external cover of hollow pen point terminal-3-solid pen point of terminal
31-solid nib connection terminal 311-solid nib to socket
32-solid pen point terminal insulation external cover 4-aviation cable pen point
41-Cable nib connection terminal 411-Cable nib to socket
42-insulating external cover of cable nib terminal 5-grounding clip
51-ground clip insulator 52-ground clip connection terminal
521-ground clip pair jack 53-ground clip contact piece
6-multimeter body 61-positive electrode meter pen jack
62-negative pole meter pen jack.
Detailed Description
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in FIG. 1, the novel multimeter comprises a multimeter body 6, wherein the multimeter body 6 is provided with a positive electrode meter pen jack 61 and a negative electrode meter pen jack 62, and meter head components are respectively assembled on the positive electrode meter pen jack 61 and the negative electrode meter pen jack 62 of the multimeter body 6.
The gauge outfit assembly comprises a test lead 1, a terminal hollow pen point 2, a terminal solid pen point 3, an aviation cable pen point 4 and a grounding clamp 5; the test lead 1 comprises a lead body 11, the lead body 11 comprises a lead metal core, a lead insulation outer cover 111 is covered on the periphery of the lead metal core, a jack connector 12 is arranged at the rear end part of the lead body 11, the jack connector 12 comprises a jack connecting terminal 121, a jack terminal insulation outer cover 122 is covered on the periphery of the jack connecting terminal 121, the jack terminal insulation outer cover 122 and the lead insulation outer cover 111 are of an integral structure, and the rear end part of the jack connecting terminal 121 protrudes and extends to the rear end side of the jack terminal insulation outer cover 122; plug connector 13 has been installed to the front end of wire main part 11, plug connector 13 is including plug connection terminal, plug connection terminal's peripheral cover has plug terminal insulating outer cover 132, plug terminal insulating outer cover 132 and wire insulating outer cover 111 structure as an organic whole, plug connection terminal's front end protrusion extends to plug terminal insulating outer cover 132 front end side, the front end and the plug connection terminal electric connection of wire metal sinle silk, the rear end and the jack connecting terminal 121 electric connection of wire metal sinle silk.
For the utility model discloses a hollow nib 2 of terminal, it is including having hollow nib connecting terminal 21, and the peripheral cover of hollow nib connecting terminal 21 has hollow nib terminal to insulate by 22 outward, and hollow nib to jack 211 towards rear open-ended hollow nib has been seted up to hollow nib connecting terminal 21's rear end, and the preceding tip protrusion of hollow nib connecting terminal 21 extends to hollow nib terminal to insulate by 22 the front end side outward, and the preceding tip of hollow nib connecting terminal 21 is seted up forward open-ended hollow nib test hole.
The utility model discloses a solid nib 3 of terminal, it is including solid nib connecting terminal 31, and solid nib connecting terminal 31's peripheral cover has solid nib terminal to insulate by 32 outward, and solid nib connecting terminal 31's rear end portion has been seted up towards rear opening's solid nib to jack 311, and solid nib connecting terminal 31's front end portion protrusion extends to solid nib terminal to insulate by 32 the front end side outward.
The utility model discloses an aviation cable nib 4, it is including cable nib connecting terminal 41, and cable nib connecting terminal 41's peripheral cover has cable nib terminal insulation outer by 42, and cable nib connecting terminal 41's rear end portion has been seted up towards rear opening's cable nib to jack 411, and cable nib connecting terminal 41's front end portion protrusion extends to cable nib terminal insulation outer by 42 the front end side.
For the grounding clip 5 of the present invention, it includes the grounding clip insulator 51 in the shape of a clamp, the grounding clip connecting terminal 52 is installed inside the rear end of the grounding clip insulator 51, the rear end of the grounding clip connecting terminal 52 is installed with the grounding clip opposite-inserting hole 521 which is opened towards the rear, the two clamping ends of the grounding clip insulator 51 are respectively installed with the grounding clip contact piece 53, and each grounding clip contact piece 53 is respectively electrically connected with the grounding clip connecting terminal 52; the inner diameter value of the hollow pen head to the jack 211, the inner diameter value of the solid pen head to the jack 311, the inner diameter value of the aviation pen head to the jack and the inner diameter value of the grounding clamp to the jack 521 are respectively equal to the outer diameter value of the front end part of the plug-in connection terminal.
Preferably, the jack connection terminal 121 and the plug connection terminal are copper terminals, the hollow nib connection terminal 21 is a copper terminal, the solid nib connection terminal 31 is a copper terminal, the cable nib connection terminal 41 is a copper terminal, the ground clip connection terminal 52 is a copper terminal, and each ground clip contact piece 53 is a copper piece.
When the hole with the screw in the hole on the fixed terminal row needs to be tested in the process of utilizing the external meter to maintain the automatic switch control box on the distribution network column, the maintainer inserts the rear end of one jack connection terminal 121 into the positive stylus jack 61 of the multimeter and inserts the rear end of the other jack connection terminal 121 into the negative stylus jack 62 of the multimeter, then inserting the front end part of the plug-in connection terminal 131 of the gauge head assembly corresponding to the positive gauge pen jack 61 into the hollow pen head pair jack 211 of the corresponding hollow pen head connection terminal 21 and inserting the front end part of the plug-in connection terminal 131 of the gauge head assembly corresponding to the negative gauge pen jack 62 into the hollow pen head pair jack 211 of the corresponding hollow pen head connection terminal 21, and finally sleeving the hollow pen head test hole at the front end part of each hollow pen head connection terminal 21 on a screw in the corresponding hole; because the hollow nib test hole cover card is on the screw, maintainer need not to keep the state of handheld nib again, can be with liberation maintainer's hand to make things convenient for maintainer to carry out other operations.
When the hollow holes on the fixed terminal row need to be tested, a maintainer needs to insert the rear end part of each jack connecting terminal 121 into the corresponding positive meter pen jack 61 and the corresponding negative meter pen jack 62 of the multimeter, then insert the front end part of each plug-in connecting terminal 131 into the corresponding solid pen head pair jack 311 of the solid pen head connecting terminal 31, and finally insert and clamp the front end part of each solid pen head connecting terminal 31 into the hollow holes; because the front end part of the solid pen point connecting terminal 31 is embedded and clamped in the hollow hole of the test position, the maintenance personnel do not need to keep the state of holding the pen point again, and the hands of the maintenance personnel can be liberated, so that the maintenance personnel can conveniently carry out other operations.
When the jacks of the aviation cable need to be tested, a maintainer needs to insert the rear end part of each jack connecting terminal 121 into the corresponding positive meter pen jack 61 and the corresponding negative meter pen jack 62 of the multimeter, then insert the front end part of each plug-in connecting terminal 131 into the corresponding cable pen head pair jack 411 of the cable pen head connecting terminal 41, and finally insert and clamp the front end part of each cable pen head connecting terminal 41 into the aviation cable jack; because the front end part of the cable pen point connecting terminal 41 is embedded and clamped in the aviation cable jack, maintenance personnel do not need to keep the state of holding the pen point, and the hands of the maintenance personnel can be liberated, so that the maintenance personnel can conveniently perform other operations.
When the voltage or the resistance to ground needs to be measured, a maintainer needs to insert the rear end part of each jack connecting terminal 121 into the corresponding positive meter pen jack 61 and the corresponding negative meter pen jack 62 of the multimeter, then insert the front end part of each plug-in connecting terminal 131 into the corresponding ground clamp pair jack 521 of the ground clamp connecting terminal 52, and finally clamp each ground clamp 5 at a corresponding test position and enable the ground clamp contact pieces 53 at the two clamping end parts of the ground clamp 5 to electrically contact the test position; because the test position is cliied to ground clamp 5, maintainer need not to keep the state of handing the nib again, can liberate maintainer's hand to make things convenient for maintainer to carry out other operations.
Synthesize the above-mentioned condition and know, through above-mentioned structural design, the utility model has the advantages of novel in design, convenient to use, and can improve security and the efficiency of automatic circuit breaker maintenance operation on joining in marriage the net post effectively.
The above is to the utility model provides a new-type universal meter has carried out the detailed introduction, to the general technical personnel in this field, the foundation the utility model discloses the thought of embodiment all has the change part on concrete implementation and application scope, to sum up, this description content should not be understood as right the utility model discloses a restriction.

Claims (7)

1. A novel multimeter is characterized in that: the universal meter comprises a universal meter body (6), wherein the universal meter body (6) is provided with a positive meter pen jack (61) and a negative meter pen jack (62), and meter head components are respectively assembled on the positive meter pen jack (61) and the negative meter pen jack (62) of the universal meter body (6);
the gauge outfit assembly comprises a test lead (1), a terminal hollow pen point (2), a terminal solid pen point (3), an aviation cable pen point (4) and a grounding clamp (5); the test lead (1) comprises a lead main body (11), the lead main body (11) comprises a lead metal core, a lead insulation outer cover (111) is covered on the periphery of the lead metal core, a jack connector (12) is arranged at the rear end part of the lead main body (11), the jack connector (12) comprises a jack connecting terminal (121), a jack terminal insulation outer cover (122) is covered on the periphery of the jack connecting terminal (121), the jack terminal insulation outer cover (122) and the lead insulation outer cover (111) are of an integrated structure, and the rear end part of the jack connecting terminal (121) protrudes to the rear end side of the jack terminal insulation outer cover (122); the front end part of the lead main body (11) is provided with a plug-in connector (13), the plug-in connector (13) comprises a plug-in connecting terminal, the periphery of the plug-in connecting terminal is sheathed with a plug-in terminal insulating outer cover (132), the plug-in terminal insulating outer cover (132) and the lead insulating outer cover (111) form an integral structure, the front end part of the plug-in connecting terminal protrudes and extends to the front end side of the plug-in terminal insulating outer cover (132), the front end part of the lead metal wire core is electrically connected with the plug-in connecting terminal, and the rear end part of the lead metal wire core is electrically connected with the jack;
the terminal hollow pen point (2) comprises a hollow pen point connecting terminal (21), the periphery of the hollow pen point connecting terminal (21) is wrapped with a hollow pen point terminal insulation outer cover (22), the rear end part of the hollow pen point connecting terminal (21) is provided with a hollow pen point opposite insertion hole (211) which is open towards the rear, the front end part of the hollow pen point connecting terminal (21) protrudes and extends to the front end side of the hollow pen point terminal insulation outer cover (22), and the front end part of the hollow pen point connecting terminal (21) is provided with a hollow pen point test hole which is open towards the front;
the terminal solid nib (3) comprises a solid nib connecting terminal (31), the periphery of the solid nib connecting terminal (31) is wrapped with a solid nib terminal insulation outer cover (32), the rear end part of the solid nib connecting terminal (31) is provided with a solid nib opposite insertion hole (311) which is opened towards the rear, and the front end part of the solid nib connecting terminal (31) protrudes and extends to the front end side of the solid nib terminal insulation outer cover (32);
the aviation cable pen point (4) comprises a cable pen point connecting terminal (41), a cable pen point terminal insulation outer cover (42) is wrapped on the periphery of the cable pen point connecting terminal (41), a cable pen point opposite insertion hole (411) which is opened towards the back is formed in the back end part of the cable pen point connecting terminal (41), and the front end part of the cable pen point connecting terminal (41) protrudes and extends to the front end side of the cable pen point terminal insulation outer cover (42);
the grounding clamp (5) comprises a clamp-shaped grounding clamp insulator (51), a grounding clamp connecting terminal (52) is arranged in the rear end part of the grounding clamp insulator (51), a grounding clamp opposite insertion hole (521) which is opened towards the rear is formed in the rear end part of the grounding clamp connecting terminal (52), grounding clamp contact pieces (53) are respectively arranged at two clamping end parts of the grounding clamp insulator (51), and each grounding clamp contact piece (53) is respectively and electrically connected with the grounding clamp connecting terminal (52); the inner diameter value of the hollow pen head to the jack (211), the inner diameter value of the solid pen head to the jack (311), the inner diameter value of the aviation pen head to the jack and the inner diameter value of the grounding clamp to the jack (521) are respectively equal to the outer diameter value of the front end part of the plug-in connection terminal.
2. A new multimeter as defined in claim 1, wherein: the jack connecting terminal (121) and the plug connecting terminal are copper terminals respectively.
3. A new multimeter as defined in claim 1, wherein: the hollow pen point connecting terminal (21) is a copper terminal.
4. A new multimeter as defined in claim 1, wherein: the solid pen point connecting terminal (31) is a copper terminal.
5. A new multimeter as defined in claim 1, wherein: the cable pen point connecting terminal (41) is a copper terminal.
6. A new multimeter as defined in claim 1, wherein: the grounding clip connecting terminal (52) is a copper terminal.
7. A new multimeter as defined in claim 1, wherein: each grounding clip contact piece (53) is a copper sheet.
CN201921016696.1U 2019-07-02 2019-07-02 Novel multimeter Active CN210166425U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921016696.1U CN210166425U (en) 2019-07-02 2019-07-02 Novel multimeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921016696.1U CN210166425U (en) 2019-07-02 2019-07-02 Novel multimeter

Publications (1)

Publication Number Publication Date
CN210166425U true CN210166425U (en) 2020-03-20

Family

ID=69795067

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921016696.1U Active CN210166425U (en) 2019-07-02 2019-07-02 Novel multimeter

Country Status (1)

Country Link
CN (1) CN210166425U (en)

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