CN210376488U - Measure accurate alternating current-direct current digital leakage current sensor - Google Patents
Measure accurate alternating current-direct current digital leakage current sensor Download PDFInfo
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- CN210376488U CN210376488U CN201920697140.7U CN201920697140U CN210376488U CN 210376488 U CN210376488 U CN 210376488U CN 201920697140 U CN201920697140 U CN 201920697140U CN 210376488 U CN210376488 U CN 210376488U
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Abstract
The utility model relates to a measure accurate alternating current-direct current digital leakage current sensor, including main part and mounting panel, still include fixed establishment, fixed establishment includes spring, drive assembly and two fixed subassemblies, fixed subassembly includes slider, connecting rod and fixed plate, and this measure accurate alternating current-direct current digital leakage current sensor and pass through fixed establishment, can make the axis of the wire that awaits measuring coincide with the through hole axis of main part to improved leakage current sensor's detection precision, compared with current fixed establishment, this fixed establishment is fixed effectual, and the practicality is high.
Description
Technical Field
The utility model relates to a leakage current sensor field, in particular to measure accurate alternating current-direct current digital leakage current sensor.
Background
The leakage current sensor is a device which converts the tested AC micro-current and DC isolation into standard analog signals or RS485 digital signals with linear proportion, such as DC current, DC voltage and the like according to the working principles of electromagnetic isolation and magnetic modulation of a mutual inductor.
When the existing leakage current sensor is used for detection, an operator needs to enable a wire to be detected to penetrate through a through hole of the leakage current sensor, but the wire to be detected is easy to deviate from the position of the central axis of the leakage current sensor, so that the measurement effect of equipment is affected, and the detection precision of the leakage current sensor is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the defects of the prior art, an alternating current and direct current digital leakage current sensor with accurate measurement is provided.
The utility model provides a technical scheme that its technical problem adopted is: an alternating current-direct current digital leakage current sensor with accurate measurement comprises a main body, a mounting plate and two fixing mechanisms, wherein the main body is fixed on the mounting plate, a through hole is formed in the main body, and the two fixing mechanisms are respectively arranged on two sides of the main body;
the fixing mechanism comprises a spring, a driving assembly and two fixing assemblies, the two ends of the spring are respectively connected with the two fixing assemblies, each fixing assembly comprises a sliding block, a connecting rod and a fixing plate, the two ends of the spring are respectively connected with the two sliding blocks, one end of each connecting rod is fixedly connected with the corresponding sliding block, the other end of each connecting rod is fixedly connected with the corresponding fixing plate, the vertical cross section of each fixing plate is arc-shaped, the circle center of each arc-shaped circle is arranged on one side, away from the corresponding connecting rod, of the corresponding fixing plate, the two fixing plates are symmetrically arranged relative to the axis of the through hole of the main body, the driving assembly is arranged below the corresponding sliding block, and.
Preferably, in order to avoid damaging the wire to be measured, a rubber pad is arranged on one side of the fixing plate, which is far away from the connecting rod.
Preferably, in order to restrict the moving direction of the slider, the fixing mechanism further comprises a supporting rod and two fixing blocks, two ends of the supporting rod are respectively fixedly connected with the main body through the two fixing blocks, the slider is provided with a small hole, the supporting rod penetrates through the two small holes, the supporting rod and the small holes are coaxially arranged, and the supporting rod is connected with the slider in a sliding mode.
Preferably, in order to avoid the rotation of the sliding block when the sliding block moves on the supporting rod, a plurality of limiting rods are arranged at the small holes of the sliding block, a plurality of grooves are formed in the supporting rod, the number of the limiting rods is equal to that of the grooves, the limiting rods correspond to the grooves one to one, one ends of the limiting rods are circumferentially and uniformly fixed on the inner wall of the small holes of the sliding block, the other ends of the limiting rods are arranged in the grooves, and the limiting rods are connected with the grooves in a sliding mode.
Preferably, in order to improve the fluency of the limiting rod when the limiting rod moves in the groove, a notch is formed in one end, close to the groove, of the limiting rod, a ball is arranged in the notch, the ball is matched with the notch, the center of the ball is arranged inside the notch, and the ball abuts against the inner wall of the groove.
Preferably, in order to move the slider, the driving assembly includes a bearing, a rotating shaft, a wire spool, two pull wires, two pull rods and three rotating rods, the bearing is fixed on the main body, one end of the rotating shaft is fixedly connected with an inner ring of the bearing, the rotating rods are circumferentially and uniformly fixed at the other end of the rotating shaft, the wire spool is fixedly connected with the rotating shaft, the wire spool is coaxially arranged with the rotating shaft, the pull wires correspond to the supporting rods one to one, one end of the pull wire is wound on the wire spool, the other end of the pull wire is fixedly connected with one end of the supporting rod, and the other end of the supporting rod is fixedly connected with the slider.
The beneficial effects of the utility model are that, this measure accurate alternating current-direct current digital leakage current sensor and pass through fixed establishment, can be so that the axis of the wire that awaits measuring coincides with the through-hole axis of main part to improved leakage current sensor's detection precision, compared with current fixed establishment, this fixed establishment is fixed effectual, and the practicality is high.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of an ac/dc digital leakage current sensor with accurate measurement according to the present invention;
fig. 2 is a side view of the ac/dc digital leakage current sensor of the present invention with accurate measurement;
fig. 3 is a schematic view of the connection structure of the slider and the support of the ac/dc digital leakage current sensor of the present invention;
in the figure: 1. the novel wire drawing machine comprises a main body, a mounting plate 2, a spring 3, a sliding block 4, a connecting rod 5, a fixing plate 6, a rubber pad 7, a supporting rod 8, a fixing block 9, a supporting rod 10, a wire drawing 11, a wire winding disc 12, a rotating shaft 13, a rotating rod 14, a bearing 15, a limiting rod 16 and a ball 17.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, an accurate measurement ac/dc digital leakage current sensor includes a main body 1 and a mounting plate 2, wherein the main body 1 is fixed on the mounting plate 2, the main body 1 is provided with a through hole, and the sensor further includes two fixing mechanisms, and the two fixing mechanisms are respectively arranged at two sides of the main body 1;
this measure accurate alternating current-direct current digital leakage current sensor passes through fixed establishment, can be so that the axis of the wire that awaits measuring and the through-hole axis coincidence of main part 1 to leakage current sensor's detection precision has been improved.
As shown in fig. 1-2, the fixing mechanism includes a spring 3, a driving assembly and two fixing assemblies, two ends of the spring 3 are respectively connected to the two fixing assemblies, each fixing assembly includes a slider 4, a connecting rod 5 and a fixing plate 6, two ends of the spring 3 are respectively connected to the two sliders 4, one end of the connecting rod 5 is fixedly connected to the slider 4, the other end of the connecting rod 5 is fixedly connected to the fixing plate 6, the fixing plate 6 has a circular arc-shaped vertical cross section, a circle center of the circular arc-shaped circular arc is disposed on one side of the fixing plate 6 away from the connecting rod 5, the two fixing plates 6 are symmetrically disposed about an axis of a through hole of the main body 1, the driving assembly is disposed below the slider 4, and the driving assembly is connected to the slider 4.
When carrying out the testing work, the operative employee passes the through-hole of main part 1 with the wire that awaits measuring, make the wire that awaits measuring be located between two fixed plates 6, the work of drive assembly is controlled again, make two sliders 4 remove to the direction that is close to each other, compression spring 3 simultaneously, drive two fixed plates 6 through connecting rod 5 and remove to the direction that is close to each other, thereby fixed wire that awaits measuring, make the wire that awaits measuring and the coaxial setting in through-hole of main part 1, thereby the precision that main part 1 detected the wire that awaits measuring has been improved.
Preferably, in order to avoid damaging the wire to be measured, a rubber pad 7 is arranged on one side of the fixing plate 6 away from the connecting rod 5.
Through setting up rubber pad 7, when avoiding fixed plate 6 fixed wire that awaits measuring, the wire that awaits measuring receives the rigid impact force, avoids haring the wire that awaits measuring.
As preferred, for the moving direction of restriction slider 4, fixed establishment still includes branch 8 and two fixed blocks 9, the both ends of branch 8 are respectively through two fixed blocks 9 and 1 fixed connection of main part, be equipped with the aperture on the slider 4, branch 8 passes two apertures, branch 8 and the coaxial setting of aperture, branch 8 and slider 4 sliding connection.
Through setting up branch 8, restricted the moving direction of slider 4 for slider 4 is more stable when removing.
As shown in fig. 3, a plurality of limiting rods 16 are arranged at the small holes of the sliding block 4, a plurality of grooves are arranged on the supporting rod 8, the number of the limiting rods 16 is equal to that of the grooves, the limiting rods 16 correspond to the grooves one to one, one end of each limiting rod 16 is circumferentially and uniformly fixed on the inner wall of each small hole of the sliding block 4, the other end of each limiting rod 16 is arranged in each groove, and the limiting rods 16 are slidably connected with the grooves.
When the sliding block 4 moves on the supporting rod 8, the limiting rod 16 is driven to move in the groove, the moving direction of the sliding block 4 is limited, meanwhile, the sliding block 4 is prevented from rotating when moving on the supporting rod 8, and therefore the stability of the sliding block 4 when moving on the supporting rod 8 is improved.
Preferably, in order to improve the smoothness of the limiting rod 16 when moving in the groove, a notch is arranged at one end of the limiting rod 16 close to the groove, a ball 17 is arranged in the notch, the ball 17 is matched with the notch, the center of the ball 17 is arranged in the notch, and the ball 17 abuts against the inner wall of the groove.
Through setting up ball 17, become rolling friction with the sliding friction when gag lever post 16 removes in the recess, the smoothness nature when having improved gag lever post 16 and removing.
Preferably, in order to move the slider 4 conveniently, the driving assembly includes a bearing 15, a rotating shaft 13, a wire spool 12, two pull wires 11, two pull rods 10 and three rotating rods 14, the bearing 15 is fixed on the main body 1, one end of the rotating shaft 13 is fixedly connected with an inner ring of the bearing 15, the rotating rods 14 are circumferentially and uniformly fixed at the other end of the rotating shaft 13, the wire spool 12 is fixedly connected with the rotating shaft 13, the wire spool 12 and the rotating shaft 13 are coaxially arranged, the pull wires 11 are in one-to-one correspondence with the supporting rods 8, one end of each pull wire 11 is wound on the wire spool 12, the other end of each pull wire 11 is fixedly connected with one end of each supporting rod 8, and the other end of each supporting rod 8 is fixedly connected with the.
Through artificial rotation bull stick 14 for pivot 13 rotates, drives wire reel 12 and rotates, tightens up act as go-between 11, drives two branches 8 and removes to the direction that is close to each other, makes two sliders 4 remove to the direction that is close to each other, thereby makes fixed plate 6 remove to the direction that is close to the wire that awaits measuring, thereby makes fixed plate 6 fix the wire that awaits measuring.
When carrying out the testing work, the operative employee passes the through-hole of main part 1 with the wire that awaits measuring, make the wire that awaits measuring be located between two fixed plates 6, artificially rotate bull stick 14 again, make pivot 13 rotate, drive wire reel 12 and rotate, tighten up stay 11, drive two branches 8 and remove to the direction that is close to each other, make two sliders 4 remove to the direction that is close to each other, compression spring 3 simultaneously, drive two fixed plates 6 through connecting rod 5 and remove to the direction that is close to each other, thereby fix the wire that awaits measuring, make the wire that awaits measuring and the coaxial setting of through-hole of main part 1, thereby the precision that main part 1 detected the wire that awaits measuring has been improved.
Compared with the prior art, this measure accurate alternating current-direct current digital leakage current sensor and pass through fixed establishment, can be so that the axis of the wire that awaits measuring coincides with the through-hole axis of main part 1 to improved leakage current sensor's detection precision, compared with current fixed establishment, this fixed establishment is fixed effectual, and the practicality is high.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The alternating current-direct current digital leakage current sensor comprises a main body (1) and a mounting plate (2), wherein the main body (1) is fixed on the mounting plate (2), and a through hole is formed in the main body (1), and the alternating current-direct current digital leakage current sensor is characterized by further comprising two fixing mechanisms which are respectively arranged on two sides of the main body (1);
the fixing mechanism comprises a spring (3), a driving assembly and two fixing assemblies, the two ends of the spring (3) are connected with the two fixing assemblies respectively, each fixing assembly comprises a sliding block (4), a connecting rod (5) and a fixing plate (6), the two ends of the spring (3) are connected with the two sliding blocks (4) respectively, one end of the connecting rod (5) is fixedly connected with the sliding blocks (4), the other end of the connecting rod (5) is fixedly connected with the fixing plate (6), the vertical cross section of the fixing plate (6) is arc-shaped, the circle center of the arc-shaped circle is arranged on one side, far away from the connecting rod (5), of the fixing plate (6), the two fixing plates (6) are symmetrically arranged relative to the axis of the center penetrating hole of the main body (1), the driving assembly is arranged below the sliding blocks (4), and the driving assembly is connected with the sliding blocks (4).
2. The ac-dc digital leakage current sensor for precise measurement according to claim 1, wherein a rubber pad (7) is disposed on a side of the fixing plate (6) away from the connecting rod (5).
3. The accurate measurement alternating current-direct current digital leakage current sensor of claim 1, wherein the fixing mechanism further comprises a supporting rod (8) and two fixing blocks (9), two ends of the supporting rod (8) are respectively and fixedly connected with the main body (1) through the two fixing blocks (9), a small hole is formed in the sliding block (4), the supporting rod (8) penetrates through the two small holes, the supporting rod (8) and the small hole are coaxially arranged, and the supporting rod (8) is in sliding connection with the sliding block (4).
4. The AC/DC digital leakage current sensor for accurate measurement according to claim 3, wherein a plurality of limiting rods (16) are arranged at the small holes of the sliding block (4), a plurality of grooves are arranged on the supporting rod (8), the number of the limiting rods (16) is equal to that of the grooves, the limiting rods (16) are in one-to-one correspondence with the grooves, one end of each limiting rod (16) is circumferentially and uniformly fixed on the inner wall of the small hole of the sliding block (4), the other end of each limiting rod (16) is arranged in the groove, and the limiting rods (16) are slidably connected with the grooves.
5. The AC-DC digital leakage current sensor for accurate measurement according to claim 4, wherein a notch is arranged at one end of the limiting rod (16) close to the groove, a ball (17) is arranged in the notch, the ball (17) is matched with the notch, the center of the ball (17) is arranged inside the notch, and the ball (17) abuts against the inner wall of the groove.
6. The AC-DC digital leakage current sensor with accurate measurement according to claim 1, the driving component comprises a bearing (15), a rotating shaft (13), a wire spool (12), two pull wires (11), two pull rods (10) and three rotating rods (14), the bearing (15) is fixed on the main body (1), one end of the rotating shaft (13) is fixedly connected with the inner ring of the bearing (15), the rotating rods (14) are uniformly fixed on the other end of the rotating shaft (13) in the circumferential direction, the wire spool (12) is fixedly connected with the rotating shaft (13), the wire spool (12) and the rotating shaft (13) are coaxially arranged, the pull wires (11) are in one-to-one correspondence with the support rods (8), one end of each pull wire (11) is wound on the wire spool (12), the other end of the pull wire (11) is fixedly connected with one end of the supporting rod (8), and the other end of the supporting rod (8) is fixedly connected with the sliding block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920697140.7U CN210376488U (en) | 2019-05-15 | 2019-05-15 | Measure accurate alternating current-direct current digital leakage current sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920697140.7U CN210376488U (en) | 2019-05-15 | 2019-05-15 | Measure accurate alternating current-direct current digital leakage current sensor |
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| Publication Number | Publication Date |
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| CN210376488U true CN210376488U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920697140.7U Active CN210376488U (en) | 2019-05-15 | 2019-05-15 | Measure accurate alternating current-direct current digital leakage current sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886485A (en) * | 2021-01-19 | 2021-06-01 | 闵敏 | Automatic threading apparatus of electric power cabinet cable lag |
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2019
- 2019-05-15 CN CN201920697140.7U patent/CN210376488U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886485A (en) * | 2021-01-19 | 2021-06-01 | 闵敏 | Automatic threading apparatus of electric power cabinet cable lag |
| CN112886485B (en) * | 2021-01-19 | 2022-11-15 | 大唐长山热电厂 | Automatic threading apparatus of electric power cabinet cable lag |
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