CN213210443U

CN213210443U - Three-phase harmonic standard calibration and verification device

Info

Publication number: CN213210443U
Application number: CN202120637407.0U
Authority: CN
Inventors: 李珊
Original assignee: Jiangxi Zhongheng Measurement And Testing Co ltd
Current assignee: Jiangxi Zhongheng Measurement And Testing Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-05-14
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a three-phase harmonic standard calibration and verification device, which comprises a base substrate, wherein a first side plate is arranged at the front end and the rear end of the upper surface of the base substrate, a second side plate is rotatably connected with the left end and the right end of the upper surface of the base substrate through hinges, a bearing plate is arranged above the base substrate, a damping spring is arranged between the lower surface of the bearing plate and the upper surface of the base substrate, the bottom of the inner side of the first side plate is provided with a chute, two ends of the bearing plate are provided with slide blocks which are in sliding fit with the chute, the middle part of the upper surface of the bearing plate is provided with a first groove, a calibrator is arranged in the first groove, the inner wall of the first groove is provided with a damping airbag, the outer surface of the calibrator is abutted against the damping airbag, the left end and the right end of the upper surface of the bearing plate are, the omnibearing shock absorption protection to the calibrator is realized.

Description

Three-phase harmonic standard calibration and verification device

Technical Field

The utility model relates to a three-phase harmonic examination technical field specifically is a three-phase harmonic standard calibration calibrating installation.

Background

With the development of modern industry, factors influencing the quality of electric energy are more and more complex, wherein the main factor is power harmonic. The impact and harmonic waves generated by the nonlinear loads on the power grid not only form great harm to stable and safe operation of power system equipment and the power grid, but also influence the rationality and fairness of the traditional instrument on electric energy metering. The monitoring and metering of harmonic waves generally uses an electric energy meter to meter electric energy, and a large amount of harmonic electric energy meters are needed by an electric power department, so that a corresponding harmonic calibration device is needed to verify and calibrate the electric energy meters.

Harmonic calibration device is generally more accurate, and the price is comparatively expensive, uses and shifts the in-process, because the road surface condition of complicacy, causes the damage of part easily, and current three-phase harmonic standard calibration calibrating verification device's shock attenuation protective effect is not good enough, can't realize the omnidirectional shock attenuation protection of equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the shortcoming and the problem that exist among the background art improve and innovate, provide a three-phase harmonic standard calibration calibrating installation.

In order to achieve the above object, the utility model provides a following technical scheme: the three-phase harmonic standard calibration and verification device comprises a base plate, wherein a first side plate is installed at the front end and the rear end of the upper surface of the base plate, a second side plate is rotatably connected to the left end and the right end of the upper surface of the base plate through hinges, a bearing plate is arranged above the base plate, a damping spring is arranged between the lower surface of the bearing plate and the upper surface of the base plate, a sliding groove is formed in the bottom of the inner side of the first side plate, sliding blocks are arranged at two ends of the bearing plate and are in sliding fit with the sliding groove, a first groove is formed in the middle of the upper surface of the bearing plate, a calibrator is placed in the first groove, a damping air bag is arranged on the inner wall of the first groove, the outer surface of the calibrator abuts against the damping air bag.

The clamping device comprises a fixing plate, the fixing plate is installed on the bearing plate, a lead screw is connected to the fixing plate in a threaded mode, a knob is fixedly connected to one end of the lead screw, a connecting plate is fixedly connected to the other end of the lead screw, a through groove and a first spring are fixedly connected to the connecting plate, the first spring is far away from one end of the connecting plate, a clamping plate is fixedly connected to the end of the clamping plate, the clamping plate is in a [ shape, and the clamping plate is in sliding fit with the through groove.

In a further scheme, the clamping plate is provided with a lug on at least one of the upper surface and the lower surface of one end close to the connecting plate.

A further scheme is that a clamping device is arranged between the first side plate and the second side plate and comprises a rotating block and a second clamping block, the rotating block is connected to the edge of the inner side of the upper end of the first side plate in a rotating mode, the second clamping block is fixedly installed at the upper end of the second side plate, a second groove is formed in the rotating block, the first clamping block is fixedly connected with the second clamping block, the first clamping block is in clearance fit with the second groove, and the second clamping block is in clearance fit with a groove formed in the side wall of the rotating block.

The further proposal is that a hand-held plate is arranged on the rotating block.

The calibrator comprises a calibrator body, a first side plate, a second side plate, a groove, a base top plate, a first side plate and a second side plate, wherein the first side plate is rotatably connected with the base top plate, the groove is formed in the first side plate, and the second side plate is rotatably connected with the base top plate.

The further scheme is that a support rod is installed on the lower surface of the base plate, a base is arranged at the bottom end of the support rod, and universal wheels are arranged at four corners of the lower surface of the base.

A further scheme is that a loop bar is installed on the outer surface of the supporting bar, a telescopic rod is arranged in the loop bar in a sliding fit mode, a fastening screw is installed on the side wall of the loop bar, a threaded rod is connected to one end, far away from the loop bar, of the telescopic rod in a threaded mode, a rotating handle is installed at the bottom end of the threaded rod, and a supporting plate is installed at the top end of the threaded rod.

The first side plate comprises a sleeve plate and a lifting plate, the lifting plate is in sliding fit with the sleeve plate, and fastening screws are arranged on the side wall of the outer surface of the sleeve plate.

Compared with the prior art, the utility model has the advantages that: (1) through the mutual matching of the handheld plate, the second groove, the rotating block, the first clamping block and the second clamping block, when the rotating block is rotated to the position that the second groove faces downwards, the second side plate is pulled outwards, the rotating block props against the first clamping block and the second clamping block, and the first clamping block and the second clamping block cannot be separated from the rotating block, so that the first side plate fixes the second side plate; when the rotating block is rotated to the position where the second groove faces the front, and the second side plate is pulled outwards, the rotating block does not abut against the first clamping block and the second clamping block, the first clamping block and the second clamping block can be separated from the rotating block, so that the second side plate can be conveniently rotated to the horizontal position, and the calibration operation is convenient to perform; (2) the height position of the lifting plate is adjusted by adjusting the position of the lifting plate in the sleeve plate, and when the lifting plate is at a higher position, the lifting plate can play a role in preventing external dust from entering the calibrator; when the lifting plate is at a lower position, the operation of the control panel on the calibrator is facilitated; (3) through the mutual matching of the sliding chute, the sliding block, the bearing plate, the calibrator and the damping spring, when the road is uneven and the device jolts up and down, the vibration impact in the vertical direction on the calibrator can be reduced through the stretching of the damping spring and the sliding of the sliding block in the sliding chute; meanwhile, through the mutual matching of the damping air bag, the first groove, the calibrator, the knob, the screw rod, the bump, the first spring, the clamping plate, the connecting plate, the fixing plate and the through groove, through the expansion of the first spring and the buffering of the air bag, the vibration impact in the horizontal direction on the standard device can be reduced; realize the omnidirectional shock attenuation protection of calibrator, protected the inside precision part of calibrator not to receive the damage, prolonged the life of calibrator.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the internal structure of the present invention;

FIG. 3 is a schematic side view of the external structure of the present invention;

FIG. 4 is a schematic view of the present invention at a point A in FIG. 1;

fig. 5 is a schematic view of a partial enlarged structure at B in fig. 3 according to the present invention;

FIG. 6 is a schematic diagram of the structure of the connection plate of the present invention;

FIG. 7 is a schematic view of a three-dimensional structure of the turning block of the present invention;

reference numerals: the base 1, the basement board 2, the loading board 3, first side board 4, the basement board 5, calibrator 6, shock attenuation gasbag 7, damping spring 8, first recess 9, universal wheel 10, bracing piece 11, loop bar 12, telescopic link 13, second side board 14, backup pad 15, rotatory handle 16, spout 17, slider 18, threaded rod 19, lagging 41, lifter plate 42, knob 101, lead screw 102, lug 103, first spring 104, clamp plate 105, connecting plate 106, fixed plate 107, logical groove 108, handheld board 201, second recess 202, turning block 203, first fixture block 204, second fixture block 205.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 to 7.

A calibration and verification device for three-phase harmonic standard comprises a base plate 2, wherein a first side plate 4 is arranged at the front end and the rear end of the upper surface of the base plate 2, a second side plate 14 is rotatably connected at the left end and the right end of the upper surface of the base plate 2 through hinges, a bearing plate 3 is arranged above the base plate 2, a plurality of damping springs 8 are arranged between the lower surface of the bearing plate 3 and the upper surface of the base plate 2, the bottom of the inner side of the first side plate 4 is provided with a sliding groove 17, two ends of the bearing plate 3 are provided with sliding blocks 18, the slide block 18 is in sliding fit with the slide groove 17, the middle part of the upper surface of the bearing plate 3 is provided with a first groove 9, the calibrator 6 is arranged in the first groove 9, the inner wall of the first groove 9 is provided with the damping air bag 7, the outer surface of the calibrator 6 is abutted against the damping air bag 7, clamping devices are arranged at the left end and the right end of the upper surface of the bearing plate 3 and used for fixing the calibrator 6.

In this embodiment, the clamping device includes a fixing plate 107, the fixing plate 107 is installed on the bearing plate 3, a lead screw 102 is connected to the fixing plate 107 through a thread, a knob 101 is fixedly connected to one end of the lead screw 102, a connecting plate 106 is fixedly connected to the other end of the lead screw 102, a through groove 108 is formed in the connecting plate 106, a first spring 104 is fixedly connected to the connecting plate 106, a clamping plate 105 is fixedly connected to one end of the first spring 104, which is far away from the connecting plate 106, the clamping plate 105 is in a [ shape ], and the clamping plate 105 is in sliding fit with the. By rotating the knob 101, the screw 102 is driven to move, so that the clamping plate 105 moves, and the calibrator 6 is clamped and fixed.

In this embodiment, the clamping plate 105 is provided with a protrusion 103 on both the upper surface and the lower surface of one end close to the connecting plate 106, and the protrusion 103 plays a role of limiting to prevent the clamping plate 105 from separating from the connecting plate 106.

In this embodiment, a fastening device is disposed between the first side plate 4 and the second side plate 14, the fastening device includes a rotating block 203 and a second clamping block 205, the rotating block 203 is rotatably connected to an inner side edge of an upper end of the first side plate 4, the second clamping block 205 is fixedly mounted at an upper end of the second side plate 14, a second groove 202 is formed in the rotating block 203, the second clamping block 205 is fixedly connected with a first clamping block 204, the first clamping block 204 is in clearance fit with the second groove 202, and the second clamping block 205 is in clearance fit with a slot formed in a side wall of the rotating block 203.

In this embodiment, the rotating block 203 is provided with a handheld plate 201, and the handheld plate 201 protrudes outwards to facilitate holding.

In this embodiment, a base top plate 5 is disposed above the calibrator 6, one end of the base top plate 5 is rotatably connected to one of the first side plates 4, and one end of the base top plate 5 is fastened to the other first side plate 4 through a slot.

In this embodiment, a support rod 11 is mounted on the lower surface of the base plate 2, a base 1 is disposed at the bottom end of the support rod 11, and universal wheels 10 are disposed at four corners of the lower surface of the base 1.

In this embodiment, install loop bar 12 on the bracing piece 11 surface, sliding fit has telescopic link 13 in loop bar 12, installs fastening screw on the loop bar 12 lateral wall, the one end threaded connection that loop bar 12 was kept away from to telescopic link 13 has threaded rod 19, rotatory handle 16 is installed to threaded rod 19 bottom, and backup pad 15 is installed on threaded rod 19 top. After the second side plate 14 rotates to the horizontal position, the position of the telescopic rod 13 in the loop bar 12 is adjusted, so that the supporting plate 15 moves to the middle part below the second side plate 14, the rotating handle 16 is rotated, the supporting plate 15 is driven to move upwards, and the effect of supporting the second side plate 14 is achieved.

In this embodiment, the first side plate 4 includes a sleeve plate 41 and a lifting plate 42, the lifting plate 42 is slidably fitted with the sleeve plate 41, and a fastening screw is disposed on a side wall of an outer surface of the sleeve plate 41.

The utility model discloses a theory of operation: in particular use, by rotating the turning block 203 so that the second groove 202 on the turning block 203 faces forward, the second side plate 14 can be turned, so that the first block 204 and the second block 205 are separated from the rotating block 203, the restriction of the first side plate 4 and the second side plate 14 by the buckle device is released, then the second side plate 14 is rotated to the horizontal position, at this time, the telescopic rod 13 is adjusted to the position in the loop bar 12, the supporting plate 15 is moved to the lower part of the second side plate 14, then the rotating handle 16 is rotated, the rotating handle 16 drives the supporting plate 15 to move upwards until the supporting plate 15 is propped against the lower surface of the second side plate 14, the electric energy meter is arranged on the second side plate 14, the position of the lifting plate 42 in the sleeve plate 41 is then adjusted to lower the height of the lifting plate 42, so as to facilitate the operation of the control panel on the front surface of the calibrator 6, and to perform verification and calibration on the harmonic electric energy meter of the electric energy meter arranged on the second side plate 14.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a three-phase harmonic standard calibration calibrating device which characterized in that: the device comprises a base plate (2), wherein a first side plate (4) is installed at the front end and the rear end of the upper surface of the base plate (2), a second side plate (14) is rotatably connected at the left end and the right end of the upper surface of the base plate (2) through hinges, a bearing plate (3) is arranged above the base plate (2), a damping spring (8) is arranged between the lower surface of the bearing plate (3) and the upper surface of the base plate (2), a sliding groove (17) is formed in the bottom of the inner side of the first side plate (4), sliding blocks (18) are arranged at two ends of the bearing plate (3), the sliding blocks (18) are in sliding fit with the sliding groove (17), a first groove (9) is formed in the middle of the upper surface of the bearing plate (3), a calibrator (6) is placed in the first groove (9), a damping air bag (7) is arranged on the inner wall of the, clamping devices are arranged at the left end and the right end of the upper surface of the bearing plate (3) and used for fixing the calibrator (6).

2. The calibration and verification device for three-phase harmonic standard calibration according to claim 1, wherein: the clamping device comprises a fixing plate (107), the fixing plate (107) is installed on the bearing plate (3), a screw rod (102) is connected to the fixing plate (107) in a threaded mode, a knob (101) is fixedly connected to one end of the screw rod (102), a connecting plate (106) is fixedly connected to the other end of the screw rod (102), a through groove (108) and a first spring (104) are fixedly connected to the connecting plate (106), one end of the first spring (104) far away from the connecting plate (106) is fixedly connected with a clamping plate (105), the clamping plate (105) is in a [ shape, and the clamping plate (105) is in sliding fit with the through groove (108).

3. A three-phase harmonic standard calibration verification device as claimed in claim 2, wherein: the clamping plate (105) is provided with a lug (103) close to at least one of the upper surface and the lower surface of one end of the connecting plate (106).

4. The calibration and verification device for three-phase harmonic standard calibration according to claim 1, wherein: be provided with buckle device between first curb plate (4) and second curb plate (14), buckle device includes turning block (203) and second fixture block (205), turning block (203) rotate to be connected in first curb plate (4) upper end inboard edge, second fixture block (205) fixed mounting in second curb plate (14) upper end, second recess (202) have been seted up on turning block (203), first fixture block (204) of second fixture block (205) fixedly connected with, first fixture block (204) and second recess (202) clearance fit, slot clearance fit on second fixture block (205) and turning block (203) lateral wall.

5. The calibration and verification device for three-phase harmonic standard calibration according to claim 4, wherein: and a handheld plate (201) is arranged on the rotating block (203).

6. The calibration and verification device for three-phase harmonic standard calibration according to claim 1, wherein: base plate (5) are arranged above calibrator (6), one end of base plate (5) is rotationally connected with one of first curb plate (4), and one end of base plate (5) is buckled at another first curb plate (4) through the fluting.

7. The calibration and verification device for three-phase harmonic standard calibration according to claim 1, wherein: the lower surface of the base plate (2) is provided with a support rod (11), the bottom end of the support rod (11) is provided with a base (1), and four corners of the lower surface of the base (1) are provided with universal wheels (10).

8. The calibration and verification device for three-phase harmonic standard calibration according to claim 7, wherein: install loop bar (12) on bracing piece (11) surface, sliding fit has telescopic link (13) in loop bar (12), installs fastening screw on loop bar (12) lateral wall, the one end threaded connection who keeps away from loop bar (12) in telescopic link (13) has threaded rod (19), rotatory handle (16) are installed to threaded rod (19) bottom, and backup pad (15) are installed on threaded rod (19) top.

9. The calibration and verification device for three-phase harmonic standard calibration according to claim 1, wherein: the first side plate (4) comprises a sleeve plate (41) and a lifting plate (42), the lifting plate (42) is in sliding fit with the sleeve plate (41), and fastening screws are arranged on the side wall of the outer surface of the sleeve plate (41).