Portable electric quantity metering and detecting device based on Rogowski coil

Abstract

The utility model discloses a portable electric quantity metering and detecting device based on a Rogowski coil, which relates to the technical field of electric quantity metering and comprises a handle assembly, a coil, a connecting wire and a detecting device, the handle assembly comprises a handle; one end of the coil is fixed on one side of the handle; two ends of the connecting line are respectively arranged on the lower sides of the handle and the detection device; a fixing assembly is further included, and the fixing assembly comprises a fixing block, a second groove, a second spring and a clamping block; the fixing block is fixed to the side, away from the side fixed to the handle, of the coil, and the fixing block is slidably connected into the handle. The number of clamping blocks and ejector rods can be increased, so that the fixing effect of a fixing block is improved, the stability of the device in the using process is guaranteed, and the detection success rate is increased; and the fixing speed of the coil can be increased, the clamping blocks can be rapidly fixed in the through holes for fixation, and therefore the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric quantity measurement, in particular to a portable electric quantity measurement detection device based on a Rogowski coil. Background Art

[0002] Rogowski coil is also called Rogowski coil, Rogowski coil or hollow coil. Rogowski coil is an AC current sensor, a hollow ring coil, available in two types: flexible and rigid. It can be directly put on the conductor to measure AC current. Rogowski coil is suitable for measuring AC current in a wide frequency range. It has no special requirements for conductors and sizes. It has a fast instantaneous response capability and is widely used in situations where traditional current measurement devices such as current transformers cannot be used. It is used for current measurement, especially high-frequency and large current measurement.

[0003] In the prior art, the arrangement of the plug connector, the plug hole and the limit assembly can facilitate the quick plugging and unplugging of the coil part, which is convenient for use in special environments, expands the scope of use, and improves practicality. At the same time, the plugging and unplugging process will not cause damage to the coil part, effectively solving the problem that the Roche coil in the prior art has a single usage method, cannot be quickly plugged in and fixed, and has low practicality. However, during use, when the limit fixation is performed by a single limit assembly and a pressing part, the fixing effect is poor. When detecting the power metering, it may fall off, resulting in the failure of the detection process. For example, a new type of Roche coil provided by the authorization announcement number CN215599245U When the coil is in use, the plug connector is inserted into the plug hole. When plugging in, the limit column is pressed to retract it into the limit hole. After the limit column slides the inner wall of the plug hole, one end of the plug connector pushes the pushing block to squeeze the second spring, so that the second spring pushes the pushing block to rebound the plug connector, and the plug connector continues to be inserted. When the limit column slides to the pressing hole, under the action of the first spring, the limit column is pushed to be inserted into the pressing hole, and then the limit column pushes the push rod out, so that the push rod pushes the elastic capsule to bulge, so as to realize the rapid positioning of the plug connector. When the limit needs to be released, it is only necessary to press the elastic capsule to push the push rod to compress the limit column so that the limit column is separated from the pressing hole. At this time, the coil part is pulled to drive the plug connector to slide out of the plug hole.

[0004] It has a big disadvantage: during use, when the limit fixation is performed by a limit component and a pressing part alone, the fixing effect is poor, and it may fall off when detecting the power metering, resulting in the failure of the detection process. Utility Model Content

[0005] The embodiment of the present application provides a portable electricity metering detection device based on a Rogowski coil, which solves the problem in the prior art that when a limit fixation is performed by only a limit assembly and a pressing portion, the fixing effect is poor, and the limit fixation may fall off when detecting electricity metering, resulting in failure of the detection process. The fixing effect of the fixing block is improved by increasing the number of the clamping block and the push rod, thereby ensuring the stability of the device during use and improving the detection success rate.

[0006] The embodiment of the present application provides a portable electricity metering detection device based on a Rogowski coil, including a handle assembly, a coil, a connecting wire and a detection device;

[0007] The handle assembly comprises a handle;

[0008] One end of the coil is fixed to one side of the handle;

[0009] The two ends of the connecting line are respectively arranged at the lower side of the handle and the detection device;

[0010] It also includes a fixing assembly, which includes a fixing block, a second groove, a second spring and a clamping block;

[0011] The fixing block is fixed to a side of the coil away from the handle, and the fixing block is slidably connected in the handle;

[0012] The fixing block is provided with groove 2, there are two grooves 2, and the grooves 2 are symmetrically arranged on both sides of the fixing block;

[0013] There are two springs and two blocks respectively, and the springs and the blocks correspond to each other one by one, and the springs and the blocks correspond to the grooves one by one. The springs are located in the grooves, and the blocks are slidably connected in the grooves. The blocks are fixed at one end of the springs, and the end of the springs away from the blocks is fixed at a side of the grooves away from the opening.

[0014] As an improvement, two ends of the connecting line are respectively threadedly connected to the handle and the detection device.

[0015] As an improvement, the handle assembly further includes a groove 1, a through hole, a spring 1, a pressure plate, a push rod and a limiting membrane;

[0016] The end of the handle away from the coil is provided with a groove 1;

[0017] The spring 1 and the pressure plate are located in the groove 1, the pressure plate is fixed to one end of the spring 1, and the end of the spring 1 away from the pressure plate is fixed to a side of the groove 1 away from the opening;

[0018] The side of the pressure plate away from the spring 1 abuts against the fixed block;

[0019] The handle has through openings on both sides, the length direction of the through openings is perpendicular to the length direction of the groove 1, the through openings are located on both sides of the lower end of the handle adjacent to the connecting line, and the through openings are connected to the groove 1;

[0020] The length direction of the through opening is parallel to the length direction of the block;

[0021] One end of the clamping block away from the second spring is slidably connected in the through opening;

[0022] There are two push rods and two limiting membranes, and the push rods and the limiting membranes correspond to each other one by one. The push rods and the limiting membranes correspond to the through-holes one by one. The limiting membrane is fixed to one end of the push rod, and one end of the push rod away from the limiting membrane is slidably connected to the through-hole. The outer ring of the limiting membrane is fixed around the through-hole, and the outer ring of the limiting membrane is one to two centimeters away from the outer ring of the through-hole.

[0023] One end of the clamping block away from the second spring abuts against the push rod.

[0024] As an improvement, the groove one is in the shape of a rectangular parallelepiped, the fixing block is in the shape of a rectangular parallelepiped, and the length direction of the fixing block is parallel to the length direction of the groove one.

[0025] As an improvement, the fixing assembly further includes a groove three, an airbag one and an airbag two;

[0026] The fixing block is provided with a groove three, the groove three is annular, and the axis of the groove three is parallel to the length direction of the fixing block;

[0027] The airbag 1 is annular and is fixed in the groove 3;

[0028] The second airbag is fixed to an end of the fixing block away from the coil;

[0029] The airbag 1 is communicated with the airbag 2.

[0030] As an improvement, the elastic coefficient of the second airbag is greater than the elastic coefficient of the first airbag.

[0031] As an improvement, the airbag 1 and the airbag 2 are made of latex material.

[0032] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0033] Firstly, by increasing the number of the clamping blocks and the ejector rods, the fixing effect of the fixing block is improved, the stability of the device during use is ensured, and the success rate of detection is improved;

[0034] Secondly, the fixing speed of the coil can be increased, and the clamp block can be quickly fixed in the through-hole for fixing, thereby improving work efficiency;

[0035] Thirdly, the friction between the airbag 1 and the groove 1 can be increased, so as to improve the fixing effect of the fixing block and ensure the stability of the fixing. At the same time, when the fixing block shakes, the airbag 1 can play a role in buffering and shock absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a front view of a portable electric quantity measuring and detecting device based on a Rogowski coil according to the utility model;

[0037] Figure 2 This is a cross-sectional view of the installation of a fixed component of a portable electric quantity measurement and detection device based on a Rogowski coil according to the utility model;

[0038] Figure 3 This is a schematic diagram of the state of a rectangular fixed block of a portable electric quantity measurement and detection device based on a Rogowski coil of the utility model;

[0039] Figure 4 The utility model is a schematic diagram of the installation of airbag 1 and airbag 2 of a portable electricity metering and detection device based on a Rogowski coil.

[0040] In the figure: 100, handle assembly; 110, handle; 111, groove 1; 112, opening; 120, spring 1; 130, pressure plate; 140, ejector rod; 150, limit film;

[0041] 200, coil;

[0042] 300, fixing assembly; 310, fixing block; 311, groove 2; 312, groove 3; 320, spring 2; 330, clamping block; 340, airbag 1; 350, airbag 2;

[0043] 400, connecting line;

[0044] 500. Detection device. DETAILED DESCRIPTION

[0045] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0046] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific implementation methods and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0048] When in use, the block 330 is released from the limit by pressing the push rod 140, and the elastic force of the spring 120 is used to push the block 330, and the fixing block 310 is pulled out from the groove 111, and the coil 200 is wound around the circuit to be detected, and the fixing block 310 is inserted again, and the block 330 is stuck in the opening 112 for limiting, and the detection device 500 connected by the connecting line 400 is used to detect the electricity metering. After use, the coil 200 can be removed again by the fixing assembly 300, and the two ends of the connecting line 400 can be removed for easy storage.

[0049] Embodiment 1: Figure 1-Figure 2 As shown, the present application is a portable electricity metering detection device based on a Rogowski coil, comprising a handle assembly 100, a coil 200, a connecting line 400 and a detection device 500;

[0050] The handle assembly 100 includes a handle 110;

[0051] One end of the coil 200 is fixed to one side of the handle 110;

[0052] The two ends of the connecting wire 400 are respectively threadedly connected to the handle 110 and the lower side of the detection device 500;

[0053] It also includes a fixing assembly 300, which includes a fixing block 310, a second groove 311, a second spring 320 and a clamping block 330;

[0054] The fixing block 310 is fixed to a side of the coil 200 away from the handle 110, and the fixing block 310 is slidably connected in the handle 110;

[0055] The fixing block 310 is provided with a second groove 311 , and there are two second grooves 311 , and the second grooves 311 are symmetrically arranged on both sides of the fixing block 310 ;

[0056] There are two springs 320 and two blocks 330, respectively, and the springs 320 and the blocks 330 correspond to each other one by one, and the springs 320 and the blocks 330 correspond to the grooves 311 one by one, respectively. The springs 320 are located in the grooves 311, and the blocks 330 are slidably connected in the grooves 311. The blocks 330 are fixed to one end of the springs 320, and the end of the springs 320 away from the blocks 330 is fixed to a side of the grooves 311 away from the opening.

[0057] The handle assembly 100 further includes a groove 111, a through hole 112, a spring 120, a pressure plate 130, a push rod 140 and a limiting film 150;

[0058] The end of the handle 110 away from the coil 200 is provided with a groove 111;

[0059] The spring 120 and the pressure plate 130 are located in the groove 111, the pressure plate 130 is fixed to one end of the spring 120, and the end of the spring 120 away from the pressure plate 130 is fixed to a side of the groove 111 away from the opening;

[0060] The side of the pressure plate 130 away from the spring 120 abuts against the fixed block 310;

[0061] The handle 110 has openings 112 on both sides, the length direction of the openings 112 is perpendicular to the length direction of the groove 111, the openings 112 are located on both sides of the lower end of the handle 110 adjacent to the connecting line 400, and the openings 112 are connected to the groove 111;

[0062] The length direction of the through opening 112 is parallel to the length direction of the block 330;

[0063] One end of the block 330 away from the second spring 320 is slidably connected in the through opening 112;

[0064] There are two push rods 140 and two limiting films 150, and the push rods 140 and the limiting films 150 correspond to each other one by one. The push rods 140 and the limiting films 150 correspond to the through openings 112 one by one. The limiting films 150 are fixed to one end of the push rods 140, and one end of the push rods 140 away from the limiting films 150 is slidably connected to the through openings 112. The outer ring of the limiting films 150 is fixed around the through openings 112, and the outer ring of the limiting films 150 is one to two centimeters apart from the outer ring of the through openings 112.

[0065] One end of the block 330 away from the second spring 320 abuts against the push rod 140;

[0066] The detection device 500 is a prior art and will not be described in detail here.

[0067] When in use, the block 330 is released from the limit by pressing the push rod 140, and the elastic force of the spring 120 is used to push the block 330, and the fixing block 310 is pulled out from the groove 111, and the coil 200 is wound around the circuit to be detected, and the fixing block 310 is inserted again, and the block 330 is stuck in the opening 112 for limiting, and the detection device 500 connected by the connecting line 400 is used to detect the electricity metering. After use, the coil 200 can be removed again by the fixing assembly 300, and the two ends of the connecting line 400 can be removed for easy storage.

[0068] During use, by increasing the number of the clamping blocks 330 and the ejector rods 140 , the fixing effect of the fixing block 310 is improved, the stability of the device during use is ensured, and the detection success rate is improved.

[0069] Embodiment 2: When the embodiment 1 is in use, the fixing effect is improved by increasing the number of the block 330 and the push rod 140. However, during use, since the fixing block 310 is cylindrical, the block 330 may not be quickly inserted into the through opening 112 during insertion, and it needs to be repeatedly rotated before the block 330 is clamped in the through opening 112. Based on this, the solution of the embodiment 1 is improved, such as Figure 3 As shown:

[0070] The groove 1 111 is in a rectangular parallelepiped shape, the fixing block 310 is in a rectangular parallelepiped shape, and the length direction of the fixing block 310 is parallel to the length direction of the groove 1 111 .

[0071] When in use, by changing the shapes of the fixing block 310 and the groove 111 , the fixing block 310 will not rotate during the insertion process and can only be inserted linearly, so that the clamping block 330 is clamped in the through opening 112 .

[0072] The fixing speed of the coil 200 can be increased, and the clamping block 330 can be quickly fixed in the through opening 112 to improve the work efficiency.

[0073] Embodiment 3: During the use of embodiment 2, the installed clamping block 330 is clamped in the through hole 112 for fixing. During long-term use, due to the friction between the fixing block 310 and the groove 111, the fixing block 310 may shake in the groove 111, resulting in a poor fixing effect. Based on this, the solution of embodiment 2 is improved, such as Figure 4 As shown:

[0074] The fixing assembly 300 further includes a groove three 312, an airbag one 340 and an airbag two 350;

[0075] The fixing block 310 is provided with a groove 312, the groove 312 is annular, and the axis of the groove 312 is parallel to the length direction of the fixing block 310;

[0076] The airbag 1 340 is annular and is fixed in the groove 3 312;

[0077] The second airbag 350 is fixed to an end of the fixing block 310 away from the coil 200;

[0078] The airbag 1 340 is connected to the airbag 2 350 , the elastic coefficient of the airbag 2 350 is greater than the elastic coefficient of the airbag 1 340 , and the airbag 1 340 and the airbag 2 350 are made of latex.

[0079] The block 330 is clamped in the through opening 112, so that the airbag 2 350 at one end of the fixing block 310 is pressed onto the pressure plate 130, and the internal gas will be filled into the airbag 1 340 to expand the airbag 1 340. After expansion, the airbag 1 340 will contact the groove 1 111 to be fixed.

[0080] The airbag 1 340 can increase the friction between the airbag 1 340 and the groove 1 111, thereby improving the fixing effect of the fixing block 310 and ensuring its fixing stability. At the same time, when the fixing block 310 shakes, the airbag 1 340 can play a role in buffering and shock absorption.

[0081] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A portable electricity metering detection device based on a Rogowski coil, comprising a handle assembly (100), a coil (200), a connecting line (400) and a detection device (500); The handle assembly (100) comprises a handle (110); One end of the coil (200) is fixed to one side of the handle (110); The two ends of the connecting line (400) are respectively arranged on the lower side of the handle (110) and the detection device (500); It is characterized in that It also includes a fixing assembly (300), wherein the fixing assembly (300) includes a fixing block (310), a second groove (311), a second spring (320) and a clamping block (330); The fixing block (310) is fixed to a side of the coil (200) away from the side fixed to the handle (110), and the fixing block (310) is slidably connected inside the handle (110); The fixing block (310) is provided with a second groove (311), and there are two second grooves (311), and the second grooves (311) are symmetrically arranged on both sides of the fixing block (310); There are two springs (320) and two blocks (330), and the springs (320) and the blocks (330) correspond to each other one by one. The springs (320) and the blocks (330) correspond to each other one by one, and the springs (320) and the blocks (330) correspond to the grooves (311) one by one. The springs (320) are located in the grooves (311), and the blocks (330) are slidably connected in the grooves (311). The blocks (330) are fixed to one end of the springs (320), and one end of the springs (320) away from the blocks (330) is fixed to a side of the grooves (311) away from the opening.

2. A portable electricity metering detection device based on a Rogowski coil as claimed in claim 1, characterized in that: The two ends of the connecting wire (400) are respectively threadedly connected to the handle (110) and the detection device (500).

3. A portable electricity metering detection device based on a Rogowski coil as claimed in claim 1, characterized in that: The handle assembly (100) further comprises a groove one (111), a through hole (112), a spring one (120), a pressure plate (130), a push rod (140) and a limiting membrane (150); The end of the handle (110) away from the fixed coil (200) is provided with a groove (111); The spring one (120) and the pressure plate (130) are located in the groove one (111), the pressure plate (130) is fixed to one end of the spring one (120), and one end of the spring one (120) away from the pressure plate (130) is fixed to a side of the groove one (111) away from the opening; The side of the pressure plate (130) away from the spring 1 (120) abuts against the fixed block (310); The handle (110) has through openings (112) on both sides, the length direction of the through openings (112) is perpendicular to the length direction of the groove one (111), the through openings (112) are located on both sides of the lower end of the handle (110) adjacent to the connecting line (400), and the through openings (112) are connected to the groove one (111); The length direction of the through opening (112) is parallel to the length direction of the block (330); One end of the clamping block (330) away from the second spring (320) is slidably connected in the through opening (112); There are two push rods (140) and two limiting films (150), and the push rods (140) and the limiting films (150) correspond to each other one by one. The push rods (140) and the limiting films (150) correspond to the through opening (112) one by one. The limiting film (150) is fixed to one end of the push rod (140), and one end of the push rod (140) away from the limiting film (150) is slidably connected to the through opening (112). The outer ring of the limiting film (150) is fixed around the through opening (112), and the outer ring of the limiting film (150) is one to two centimeters away from the outer ring of the through opening (112). One end of the clamping block (330) away from the second spring (320) abuts against the push rod (140).

4. A portable electricity metering detection device based on a Rogowski coil as claimed in claim 3, characterized in that: The groove one (111) is in the shape of a rectangular parallelepiped, the fixing block (310) is in the shape of a rectangular parallelepiped, and the length direction of the fixing block (310) is parallel to the length direction of the groove one (111).

5. A portable electricity metering detection device based on a Rogowski coil as claimed in claim 4, characterized in that: The fixing assembly (300) further includes a groove three (312), an airbag one (340) and an airbag two (350); The fixing block (310) is provided with a groove three (312), the groove three (312) is annular, and the axis of the groove three (312) is parallel to the length direction of the fixing block (310); The airbag 1 (340) is annular and is fixed in the groove 3 (312); The second airbag (350) is fixed to an end of the fixing block (310) away from the coil (200); The airbag 1 (340) is connected to the airbag 2 (350).

6. A portable electricity metering detection device based on a Rogowski coil as claimed in claim 5, characterized in that: The elastic coefficient of the second airbag (350) is greater than the elastic coefficient of the first airbag (340).

7. A portable electricity metering detection device based on a Rogowski coil as claimed in claim 6, characterized in that: The airbag 1 (340) and the airbag 2 (350) are made of latex material.

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