CN214703956U

CN214703956U - Differential mode interference test device

Info

Publication number: CN214703956U
Application number: CN202120963253.4U
Authority: CN
Inventors: 陈芋宏; 张明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-11-12
Anticipated expiration: 2031-05-07

Abstract

The utility model discloses a poor mould interference test device relates to smart electric meter test equipment technical field, including test instrument body and interconnecting link, two symmetrical connecting rods are installed to the bottom of test instrument body, two the equal fixedly connected with guide arm in bottom of connecting rod, the surface threaded connection of guide arm has fixation nut. The utility model relates to a rational in infrastructure, it crosses and sets up coupling mechanism, make the slider remove on the screw rod, and under the mating reaction of rack and gear, make the rotary rod drive the copper and rotate, and then make the copper under the effect of copper pole, the purpose to external line centre gripping has been realized, the rotary rod can drive the copper towards keeping away from the rotation of copper pole direction simultaneously, realized the inside fixed purpose of opening outward of external equipment, still can be connected with external equipment through the copper pole, to sum up, reach and connect fixed effect to external equipment multiple mode, therefore, the high applicability.

Description

Differential mode interference test device

Technical Field

The utility model relates to a smart electric meter test equipment technical field specifically is a poor mode interference test device.

Background

The change of voltage and current has two forms when being transmitted through a wire, which is called as 'common mode' and 'differential mode', a power line of equipment, a communication line of a telephone and the like, a communication line mutually exchanged with other equipment or peripheral equipment, at least two wires are used as a round-trip line to transmit electric power or signals, but a third conductor is usually arranged outside the two wires, namely 'ground wire', and interference voltage and current are divided into two types, namely, the two wires are respectively used as the round-trip line to transmit; the other is that two wires are used as outgoing paths, and the ground wire is used as a return path for transmission, wherein the former is called differential mode, and the latter is called common mode.

Utilize the wire to be connected external equipment with experimental facilities often in the experiment of differential mode interference, however, traditional wire is mostly through wire clamp or cylindricality inserted bar and equipment line connection, and connected mode is limited, is difficult to be applicable to different types of equipment to connection stability is relatively poor, has the potential safety hazard. Therefore, the differential mode interference test device solves the problems.

SUMMERY OF THE UTILITY MODEL

One) technical problem to be solved

The utility model aims at providing a poor mould interference test device in order to compensate the not enough of prior art.

II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a poor mould interference test device, includes test instrument body and interconnecting link, two symmetrical connecting rods are installed to the bottom of test instrument body, two the equal fixedly connected with guide arm in bottom of connecting rod, the surface threaded connection of guide arm has fixation nut.

The connecting circuit comprises a copper wire, one end of the copper wire is fixedly connected with a metal ring, the metal ring is sleeved on the outer surface of the guide rod, the outer surface of the copper wire is fixedly connected with a rubber leather sleeve, and the other end of the copper wire is provided with a connecting mechanism.

Further, coupling mechanism includes the metal block, metal block fixed connection keeps away from the one end of ferrule in the copper line, the bottom fixedly connected with copper pole of copper line side is kept away from to the metal block, through setting up the copper pole, can insert the external equipment with the copper pole to be connected with the copper line through the metal block.

Further, a sliding groove is formed in one side face of the metal block, the inner top wall of the sliding groove is connected with a screw rod in a rotating mode, the top end of the screw rod penetrates through the upper surface of the metal block and is fixedly connected with an insulating hexagonal block, a sliding block is connected to the outer surface of the screw rod in a threaded mode, the sliding block is connected to the inside of the sliding groove in a sliding mode, through the arrangement of the screw rod, a worker can drive the screw rod to rotate inside the sliding groove through the handheld insulating hexagonal block, and the sliding block can move up and down inside the sliding groove.

Further, the equal fixedly connected with fixed plate of both sides face of metal block, two be provided with the rotary rod in the crack between the fixed plate, and the both ends of rotary rod rotate respectively and connect in the side that two fixed plates are close to each other, the outer fixed surface of rotary rod is connected with the copper, through setting up the copper, makes the rotary rod drive the copper rotatory in the gap between two fixed plates, can make the copper paste to the copper pole direction and lean on, and then can carry out the centre gripping to the circuit of external equipment, facilitates the use.

Further, the outer fixed surface of rotary rod is connected with the gear, the swivelling chute has been seted up to the inside of copper, the gear is located the inside of swivelling chute, and gear and rack meshing are connected, and through setting up gear and rack, drive the rack through the slider and remove, can make the gear drive rotary rod rotate under the meshing effect of rack and gear, and then can adjust the rotation angle of copper.

Furthermore, the outer fixed surface of connecting rod is connected with the spacing ring, the metal ring is arranged in the crack between spacing ring and fixation nut, through setting up the spacing ring, can make the metal ring paste and lean on the spacing ring, and then promotes the stability fixed to the metal ring.

Thirdly), the beneficial effects are as follows:

compared with the prior art, the differential mode interference test device has the following beneficial effects:

one, the utility model discloses a set up coupling mechanism, make the slider remove on the screw rod, and under the mating reaction of rack and gear, make the rotary rod drive the copper and rotate, and then make the copper under the effect of copper pole, the purpose to external line centre gripping has been realized, the rotary rod can drive the copper towards keeping away from the rotation of copper pole direction simultaneously, realized the inside fixed purpose of opening outward of external equipment, still can be connected with external equipment through the copper pole, to sum up, reach and connect fixed effect to external equipment multiple mode, and wide applicability.

Two, the utility model discloses a ferrule, connecting rod, guide arm and fixation nut make ferrule articulate on the guide arm to make fixation nut thread tightening on the guide arm, under the effect of spacing ring, can fix the ferrule, promoted the stability of being connected between interconnecting link and the test instrument body, the security is high.

Drawings

FIG. 1 is a perspective view of the testing device of the present invention;

FIG. 2 is a schematic view of the connection circuit of the present invention installed on the testing instrument body;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is a perspective view of the connection mechanism of the present invention.

In the figure: 1. a test instrument body; 2. connecting a line; 201. a copper wire; 202. a metal ring; 203. a rubber leather sheath; 3. a connecting rod; 4. a limiting ring; 5. a guide bar; 6. fixing a nut; 7. a connecting mechanism; 701. a metal block; 702. a chute; 703. a screw; 704. insulating hexagonal blocks; 705. a slider; 706. a fixing plate; 707. a rack; 708. rotating the rod; 709. a copper plate; 710. a gear; 711. a rotating tank; 712. a copper rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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. 1-4, the utility model provides a technical solution: the utility model provides a poor mould interference test device, includes test instrument body 1 and interconnecting link 2, two symmetrical connecting rods 3 are installed to the bottom of test instrument body 1, the equal fixedly connected with guide arm 5 in bottom of two connecting rods 3, and the surface threaded connection of guide arm 5 has fixation nut 6.

Connecting line 2 includes copper line 201, the one end fixedly connected with ferrule 202 of copper line 201, and ferrule 202 cup joints in the surface of guide arm 5, the outer fixed surface of copper line 201 is connected with rubber leather sheath 203, the outer fixed surface of connecting rod 3 is connected with spacing ring 4, ferrule 202 is arranged in the crack between spacing ring 4 and fixation nut 6, through setting up spacing ring 4, can make ferrule 202 paste and lean on spacing ring 4, and then promote the stability fixed to ferrule 202, the other end of copper line 201 is provided with coupling mechanism 7.

Connecting mechanism 7 includes metal block 701, metal block 701 fixed connection is in the one end that metal loop 202 was kept away from to copper line 201, the bottom fixedly connected with copper pole 712 of a copper line 201 side is kept away from to metal block 701, through setting up copper pole 712, can insert copper pole 712 in the external equipment, and be connected with copper line 201 through metal block 701, spout 702 has been seted up to a side of metal block 701, the interior roof of spout 702 rotates o and is connected with screw rod 703, and the top of screw rod 703 runs through the upper surface of metal block 701 and fixedly connected with insulating hexagonal piece 704, the surface threaded connection of screw rod 703 has slider 705, and slider 705 sliding connection is in the inside of spout 702, through setting up screw rod 703, the workman drives screw rod 703 rotatory in the inside of spout 702 with handheld insulating hexagonal piece 704, can make slider 705 make the lifting movement in the inside of spout 702.

Fixing plates 706 are fixedly connected to both side surfaces of the metal block 701, a rotating rod 708 is arranged in a gap between the two fixing plates 706, both ends of the rotating rod 708 are respectively and rotatably connected to one side surface of the two fixing plates 706 which are close to each other, a copper plate 709 is fixedly connected to the outer surface of the rotating rod 708, the rotating rod 708 drives the copper plate 709 to rotate in the gap between the two fixing plates 706 by arranging the copper plate 709, the copper plate 709 can be attached to the copper rod 712 direction, a circuit of an external device can be clamped, the use is convenient, a gear 710 is fixedly connected to the outer surface of the rotating rod 708, a rotating groove 711 is formed in the copper plate 709, the gear 710 is positioned in the rotating groove 711, the gear 710 is meshed with a rack 707, the rack 707 is driven to move by arranging the gear 710 and the rack 707, the rotating rod 710 can be driven to rotate by the gear 710 under the meshing action of the rack 707 and the gear 710, further, the rotation angle of the copper plate 709 can be adjusted.

The working principle is as follows: firstly, a metal ring 202 is placed on a guide rod 5, a fixing nut 6 is spirally fixed on the guide rod 5, two side surfaces of the metal ring 202 are respectively contacted with a limiting ring 4 and the guide rod 5, the purpose of fixing a connecting line 2 and a test instrument body 1 is realized, the metal ring 202 can be fixed, the stability and the safety of connection between the connecting line 2 and the test instrument body 1 are improved, then, if the metal ring is required to be connected with a line of external equipment, a user drives a screw rod 703 to rotate in a sliding groove 702 through an insulating hexagonal block 704, so that a sliding block 705 moves in the sliding groove 702, under the action of a rack 707 and a gear 710, a rotating rod 708 drives a copper plate 709 to rotate towards the direction close to the copper rod 712, the line can be fixed between the copper rod 712 and the copper plate 709, and if the metal ring is required to be clamped in the external equipment, the user drives the screw rod 703 to rotate in the sliding groove 702 through the insulating hexagonal block 704, thereby the sliding block 705 moves in the sliding groove 702, under the action of the rack 707 and the gear 710, the rotating rod 708 drives the copper plate 709 to rotate in the direction away from the copper rod 712, the connection mechanism 7 can be fixed inside the external device connection groove by contacting the copper plate 709 and the copper rod 712 with the inner wall of the external device connection groove, respectively, and if it is required to connect through the jack of the external device, the user drives the screw 703 to rotate inside the sliding slot 702 through the insulating hexagonal block 704, so that the sliding block 705 moves inside the sliding slot 702, under the action of the rack 707 and the gear 710, the rotating rod 708 drives the copper plate 709 to rotate away from the copper rod 712, can insert copper pole 712 in the jack of external equipment, reach and connect fixed effect to external equipment multiple mode, extensive applicability, finally, through the power supply of external equipment, can carry out the differential mode interference experiment.

It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "fixedly," "mounted," "connected," and "connected" are to be construed broadly, e.g., "mounted" may be fixedly connected, or detachably connected, or integrally connected; "connected" may be mechanically or electrically connected; "connected" may be directly connected or indirectly connected through an intermediate member, or may be internal or external to two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a differential mode interference test device, includes test instrument body (1) and interconnecting link (2), its characterized in that: the testing instrument comprises a testing instrument body (1), wherein two symmetrical connecting rods (3) are mounted at the bottom of the testing instrument body (1), guide rods (5) are fixedly connected to the bottom ends of the two connecting rods (3), and fixing nuts (6) are connected to the outer surfaces of the guide rods (5) in a threaded mode;

connecting wire (2) are including copper line (201), the one end fixedly connected with ferrule (202) of copper line (201), and ferrule (202) cup joints in the surface of guide arm (5), the outer fixed surface of copper line (201) is connected with rubber leather sheath (203), the other end of copper line (201) is provided with coupling mechanism (7).

2. The differential mode interference testing device according to claim 1, characterized in that: coupling mechanism (7) include metal block (701), metal block (701) fixed connection keeps away from the one end of ferrule (202) in copper line (201), the bottom fixedly connected with copper pole (712) of copper line (201) a side is kept away from in metal block (701).

3. The differential mode interference testing device according to claim 2, characterized in that: a sliding groove (702) is formed in one side face of the metal block (701), a screw rod (703) is connected to the inner top wall of the sliding groove (702) in a rotating mode, the top end of the screw rod (703) penetrates through the upper surface of the metal block (701) and is fixedly connected with an insulating hexagonal block (704), a sliding block (705) is connected to the outer surface of the screw rod (703) in a threaded mode, and the sliding block (705) is connected to the inside of the sliding groove (702) in a sliding mode.

4. The differential mode interference testing device according to claim 3, characterized in that: the equal fixedly connected with fixed plate (706) of both sides face of metal block (701), two be provided with rotary rod (708) in the crack between fixed plate (706), and the both ends of rotary rod (708) rotate respectively and connect in the one side that two fixed plate (706) are close to each other, the outer fixed surface of rotary rod (708) is connected with copper (709).

5. The differential mode interference testing device according to claim 4, characterized in that: the outer surface of the rotating rod (708) is fixedly connected with a gear (710), a rotating groove (711) is formed in the copper plate (709), the gear (710) is located in the rotating groove (711), and the gear (710) is meshed with the rack (707).

6. The differential mode interference testing device according to claim 1, characterized in that: the outer surface of the connecting rod (3) is fixedly connected with a limiting ring (4), and the metal ring (202) is located in a crack between the limiting ring (4) and the fixing nut (6).