CN213989422U

CN213989422U - Power transformer no-load current detection equipment

Info

Publication number: CN213989422U
Application number: CN202023099212.XU
Authority: CN
Inventors: 王颖; 王本虎
Original assignee: Binhai Xiangdong Electronics Co ltd
Current assignee: Binhai Xiangdong Electronics Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-08-17
Anticipated expiration: 2030-12-21

Abstract

The utility model relates to the technical field of current detection equipment, and discloses power transformer no-load current detection equipment, which comprises an instrument body, wherein jacks are arranged on the instrument body, plugs are inserted on the jacks, the other ends of the plugs are connected with cables, and the upper ends of the instrument body are connected with the plugs through a fixing mechanism; the fixing mechanism comprises a bearing, the bearing is arranged on one side of the jack, the bearing is fixedly connected to the upper end of the instrument body, a threaded rod is fixedly connected to the inner ring wall of the bearing, the upper end of the threaded rod penetrates through the bearing and extends upwards, a nut is connected to the rod wall of the threaded rod in a threaded mode, a limiting assembly is connected to the annular side wall of the jack, and the nut is connected to the annular side wall of the jack, and a fixing pipe with one end arranged in a sealing mode is fixedly connected to the annular side wall of the limiting assembly. The utility model discloses the lower extreme of fixation clamp tightly presses in the upper end of plug, to the firm fixing on the jack of plug, prevents that the plug from taking place to break away from the jack, has guaranteed to normally stable the measuring to power transformer.

Description

Power transformer no-load current detection equipment

Technical Field

The utility model relates to a current detection equipment technical field especially relates to a power transformer no-load current detection equipment.

Background

The transformer no-load current detection equipment is mainly used for no-load experiments of power transformers, and the measured direct parameters are three-phase voltage, three-phase voltage root mean square, three-phase current, power, experiment power supply frequency, small instrument volume, light weight and strong anti-interference capability, and is particularly suitable for field use. When the detection equipment works, the transformer and the detection equipment need to be connected through the cable, the plug and the jack, but the detection equipment lacks the fixation to the plug in the detection process, and when the cable accidentally receives external force, the plug is easily separated from the jack of the detection equipment, so that the detection of the power transformer is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving prior art check out test set and lacking fixedly to the plug in the testing process, when the cable accident received external force, the plug broke away from check out test set's jack easily to the problem that the influence detected power transformer, and the power transformer no-load current check out test set that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a no-load current detection device for a power transformer comprises an instrument body, wherein a jack is arranged on the instrument body, a plug is inserted into the jack, the other end of the plug is connected with a cable, and the upper end of the instrument body is connected with the plug through a fixing mechanism;

the fixing mechanism comprises a bearing, the bearing is arranged at one side of the jack and is fixedly connected with the upper end of the instrument body, a threaded rod is fixedly connected to the inner ring wall of the bearing, the upper end of the threaded rod penetrates through the bearing and extends upwards, the rod wall of the threaded rod is connected with a nut in a threaded manner, the annular side wall of the nut far away from the jack is connected with a limiting component, a fixed pipe with one end arranged in a sealing way is fixedly connected on the annular side wall of the nut far away from the limiting component, the bottom of the outer pipe of the fixed pipe is fixedly connected to the annular side wall of the nut, the bottom of the inner pipe of the fixed pipe is fixedly connected with a spring, the other end fixedly connected with dead lever of spring, the dead lever is kept away from the one end of spring and is passed the mouth of pipe of fixed pipe and fixedly connected with and be the fixation clamp of "U" type, the fixation clamp sets up the upper end at the plug, and the cable passes the fixation clamp setting.

Preferably, spacing subassembly includes the gag lever post, gag lever post fixed connection is in the upper end of instrument body, the cover is equipped with assorted spacing ring on the pole wall of gag lever post, spacing ring fixed connection is on the nut keeps away from the annular lateral wall of fixed pipe one end.

Preferably, the rod wall of the fixed rod close to one end of the spring is symmetrically and fixedly connected with sliding blocks, the inner pipe wall of the fixed pipe corresponding to the sliding blocks is provided with matched sliding grooves along the horizontal linear direction, and the sliding blocks are slidably connected in the corresponding sliding grooves.

Preferably, the upper end of the threaded rod is highly connected with a rotating handle, and the annular side wall of the rotating handle is provided with anti-skid grains.

Preferably, the axes of the fixing tube, the spring and the fixing rod overlap.

Preferably, the inner ring wall of the limiting ring is embedded with four rolling balls in an annular shape with the limiting rod as the center and at equal intervals, and the balls are connected to the rod wall of the limiting rod in a rolling manner.

Compared with the prior art, the utility model provides a power transformer no-load current check out test set possesses following beneficial effect:

this power transformer no-load current check out test set, through setting up fixed establishment, the threaded rod rotates, drive the fixation clamp upward movement earlier, insert the plug in the jack afterwards, the cable passes the fixation clamp, then reverse the threaded rod, make the nut drive the fixation clamp downward movement, the lower extreme of fixation clamp tightly presses the upper end at the plug, fix on the jack firmly to the plug, prevent that the plug from taking place to break away from the jack, the normal stable detection of power transformer has been guaranteed, when inserting the plug with the specification again in the jack, need not to operate the threaded rod again, only need exert the motive force to the fixation clamp alone, dead lever compression spring, make the fixation clamp break away from the jack, can insert in the jack with the plug, the motive force of exerting to the fixation clamp is cancelled afterwards, compressed spring promotes the dead lever and resets, and then drive the upper end of fixation clamp top at the plug.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses the lower extreme of fixation clamp tightly presses in the upper end of plug, to the firm fixing on the jack of plug, prevents that the plug from taking place to break away from the jack, has guaranteed to normally stable the measuring to power transformer.

Drawings

Fig. 1 is a schematic structural diagram of a no-load current detection device for a power transformer according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is an enlarged view of a portion B in fig. 1.

In the figure: 1. an instrument body; 2. a jack; 3. a plug; 4. a cable; 5. a threaded rod; 6. a nut; 7. a fixed tube; 8. a spring; 9. fixing the rod; 10. a fixing clip; 11. a limiting rod; 12. a limiting ring; 13. a slider; 14. a chute; 15. rotating the handle; 16. a ball bearing; 17. and a bearing.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a no-load current detection device for a power transformer comprises an instrument body 1, wherein a jack 2 is arranged on the instrument body 1, a plug 3 is inserted into the jack 2, the other end of the plug 3 is connected with a cable 4, and the upper end of the instrument body 1 is connected with the plug 3 through a fixing mechanism;

the fixing mechanism comprises a bearing 17, the bearing 17 is arranged at one side of the jack 2, the bearing 17 is fixedly connected at the upper end of the instrument body 1, a threaded rod 5 is fixedly connected on the inner ring wall of the bearing 17, the upper end of the threaded rod 5 penetrates through the bearing 17 and extends upwards, a nut 6 is in threaded connection with the rod wall of the threaded rod 5, a limit component is connected on the annular side wall of the nut 6 far away from the jack 2, a fixing pipe 7 with one end arranged in a sealing manner is fixedly connected on the annular side wall of the nut 6 far away from the limit component, the outer pipe bottom of the fixing pipe 7 is fixedly connected on the annular side wall of the nut 6, a spring 8 is fixedly connected at the inner pipe bottom of the fixing pipe 7, a fixing rod 9 is fixedly connected at the other end of the spring 8, one end of the fixing rod 9 far away from the spring 8 penetrates through the pipe orifice of the fixing pipe 7 and is fixedly connected with a fixing clamp 10 in a U shape, the fixing clamp 10 is arranged at the upper end of the plug 3, and the cable 4 penetrates through the fixing clamp 10, the threaded rod 5 is rotated, the threaded rod 5 rotates in the bearing 17, the limiting of the limiting component is realized, the nut 6 moves in the corresponding vertical direction according to the rotating direction of the threaded rod 5, the fixing clamp 10 is further driven to move in the synchronous vertical direction, the fixing clamp 10 is firstly driven to move upwards, then the plug 3 is inserted into the jack 2, the cable 4 penetrates through the fixing clamp 10, then the threaded rod 5 is reversed, the nut 6 drives the fixing clamp 10 to move downwards, the lower end of the fixing clamp 10 is tightly pressed at the upper end of the plug 3, the plug 3 is firmly fixed on the jack 2, the plug 3 is prevented from being separated from the jack 2, the normal and stable detection of the power transformer is ensured, when the plug 3 needs to be pulled out, the pushing force towards the direction of the threaded rod 5 is applied to the fixing clamp 10, the fixing clamp 10 is driven to compress the spring 8 in the fixing tube 7 after being stressed, make fixation clamp 10 break away from the upper end of plug 3, exert ascending pulling force to plug 3 this moment again, can extract plug 3 from jack 2, insert the plug 3 with the specification again in jack 2 when, need not to operate threaded rod 5 again, only need exert the driving force to fixation clamp 10 alone, dead lever 9 compression spring 8, make fixation clamp 10 break away from jack 2, can insert plug 3 in jack 2, cancel the driving force applied to fixation clamp 10 afterwards, compressed spring 8 promotes dead lever 9 and resets, and then drive fixation clamp 10 top in the upper end of plug 3.

Spacing subassembly includes

gag lever post

11, and 11 fixed connection of gag lever post are in the upper end of instrument body 1, and the cover is equipped with assorted spacing ring 12 on the pole wall of gag lever post 11, and spacing ring 12 fixed connection is on the annular lateral wall of fixed pipe 7 one end is kept away from to nut 6, because spacing ring 12 can only slide on gag lever post 11, and then carries on spacingly to 6 direction of motion of the nut of being connected with spacing ring 12, prevents that nut 6 from taking place to rotate.

The slide blocks 13 are symmetrically and fixedly connected to the rod wall of the fixing rod 9 close to one end of the spring 8, the slide grooves 14 matched with each other are formed in the positions, corresponding to the slide blocks 13, of the inner pipe wall of the fixing pipe 7 in the horizontal linear direction, the slide blocks 13 are connected in the corresponding slide grooves 14 in a sliding mode, when the fixing rod 9 is stressed to slide in the fixing pipe 7, the slide blocks 13 are driven to slide in the slide grooves 14 synchronously, and the fixing rod 9 is prevented from being separated from the fixing pipe 7.

The upper end of the threaded rod 5 is highly connected with a rotating handle 15, the annular side wall of the rotating handle 15 is provided with anti-skid grains, and the rotating handle 15 is held to drive the threaded rod 5 to rotate synchronously.

The axes of the fixed tube 7, the spring 8 and the fixed rod 9 overlap.

Use gag lever post 11 to be the even equidistance of annular and inlay on the inner ring wall of gag lever post 12 as the center and have four rolling balls 16, ball 16 roll connection is on the pole wall of gag lever post 11, through the ball 16 centre gripping gag lever post 11 that is the annular and distributes the setting, when gag lever post 11 and gag lever post 12 are relative motion, drives ball 16 and rolls, reduces the frictional resistance when doing relative motion between gag lever post 11 and the gag lever post 12.

In the utility model, the threaded rod 5 is rotated to rotate the threaded rod 5 in the bearing 17, the nut 6 moves in the corresponding vertical direction according to the rotating direction of the threaded rod 5 through the limit of the limit component, and then the fixing clamp 10 is driven to move in the synchronous vertical direction, the fixing clamp 10 is driven to move upwards firstly, then the plug 3 is inserted into the jack 2, the cable 4 passes through the fixing clamp 10, then the threaded rod 5 is reversed, so that the nut 6 drives the fixing clamp 10 to move downwards, the lower end of the fixing clamp 10 is tightly pressed on the upper end of the plug 3, the plug 3 is firmly fixed on the jack 2, the plug 3 is prevented from being separated from the jack 2, the normal and stable detection of the power transformer is ensured, when the plug 3 needs to be pulled out, the pushing force towards the direction of the threaded rod 5 is applied to the fixing clamp 10, the fixing rod 9 is driven to compress the spring 8 in the fixing tube 7 after the fixing clamp 10 is stressed, make fixation clamp 10 break away from the upper end of plug 3, exert ascending pulling force to plug 3 this moment again, can extract plug 3 from jack 2, insert the plug 3 with the specification again in jack 2 when, need not to operate threaded rod 5 again, only need exert the driving force to fixation clamp 10 alone, dead lever 9 compression spring 8, make fixation clamp 10 break away from jack 2, can insert plug 3 in jack 2, cancel the driving force applied to fixation clamp 10 afterwards, compressed spring 8 promotes dead lever 9 and resets, and then drive fixation clamp 10 top in the upper end of plug 3.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The no-load current detection equipment for the power transformer comprises an instrument body (1), and is characterized in that a jack (2) is arranged on the instrument body (1), a plug (3) is inserted into the jack (2), the other end of the plug (3) is connected with a cable (4), and the upper end of the instrument body (1) is connected with the plug (3) through a fixing mechanism;

the fixing mechanism comprises a bearing (17), the bearing (17) is arranged on one side of the jack (2), the bearing (17) is fixedly connected to the upper end of the instrument body (1), a threaded rod (5) is fixedly connected to the inner ring wall of the bearing (17), the upper end of the threaded rod (5) penetrates through the bearing (17) and extends upwards, a nut (6) is in threaded connection with the rod wall of the threaded rod (5), a limiting component is connected to the annular side wall of the nut (6) far away from the jack (2), a fixing pipe (7) with one end arranged in a sealing mode is fixedly connected to the annular side wall of the nut (6) far away from the limiting component of the nut (6), the outer pipe bottom of the fixing pipe (7) is fixedly connected to the annular side wall of the nut (6), a spring (8) is fixedly connected to the inner pipe bottom of the fixing pipe (7), and a fixing rod (9) is fixedly connected to the other end of the spring (8), the one end that spring (8) was kept away from in dead lever (9) passes the mouth of pipe of fixed pipe (7) and fixedly connected with is fixation clamp (10) of "U" type, fixation clamp (10) set up in the upper end of plug (3), and cable (4) pass fixation clamp (10) and set up.

2. The no-load current detection device for the power transformer according to claim 1, wherein the limiting component comprises a limiting rod (11), the limiting rod (11) is fixedly connected to the upper end of the instrument body (1), a matched limiting ring (12) is sleeved on the rod wall of the limiting rod (11), and the limiting ring (12) is fixedly connected to the annular side wall of one end, far away from the fixed tube (7), of the nut (6).

3. A power transformer no-load current detection device according to claim 1, wherein the rod wall of the fixed rod (9) near one end of the spring (8) is symmetrically and fixedly connected with sliding blocks (13), the inner tube wall of the fixed tube (7) corresponding to the sliding blocks (13) is provided with matched sliding grooves (14) along the horizontal straight direction, and the sliding blocks (13) are slidably connected in the corresponding sliding grooves (14).

4. The no-load current detection device of the power transformer as claimed in claim 1, wherein a rotation handle (15) is connected to the upper end of the threaded rod (5) at a high level, and the annular side wall of the rotation handle (15) is provided with anti-skid grains.

5. A power transformer no-load current detection device according to claim 1, characterized in that the axes of said fixed tube (7), spring (8) and fixed rod (9) overlap.

6. The no-load current detection device for the power transformer as recited in claim 2, wherein four rolling balls (16) are embedded on the inner annular wall of the limiting ring (12) in an annular shape with the limiting rod (11) as a center, uniformly and equidistantly, and the rolling balls (16) are connected to the rod wall of the limiting rod (11) in a rolling manner.