CN213423323U

CN213423323U - Hand-held DC resistance tester

Info

Publication number: CN213423323U
Application number: CN202022297644.5U
Authority: CN
Inventors: 刘亮辰; 张琪
Original assignee: Wuhan Zhichen Power Technology Co ltd
Current assignee: Wuhan Zhichen Power Technology Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-06-11
Anticipated expiration: 2030-10-15

Abstract

The utility model relates to the technical field of resistance testers, and discloses a hand-held direct current resistance tester, which comprises a tester shell, wherein the upper part and the lower part of the right side of the tester shell are movably hinged with the left side of a protective cover through hinges, rectangular notches are arranged at the middle positions of the bottom parts of the tester shell and the protective cover, a hanging hole is arranged at the lower left corner of the tester shell, and a spring-type lifting rope is fixedly connected to the hanging hole; the left side of the tester shell is fixedly provided with a handle. The utility model discloses during the use operating personnel can take the removal with the tester casing through the handle, during actual operation, operating personnel is direct with the vertical downwards of splint upset, and rotatory butterfly bolt carries out fixed connection with the intraoral bolt hole of rectangle opening of tester casing, thereby reach stable measure, then personnel peg graft splint on operating personnel's waistband, just so can make things convenient for operating personnel to liberate both hands and continue the operation, convenient and fast, and time saving and labor saving improves test effect and efficiency.

Description

Hand-held DC resistance tester

Technical Field

The utility model relates to a resistance tester technical field specifically is hand-held type direct current resistance tester.

Background

The testing of the direct current resistance of the transformer is a necessary project for the maintenance of the transformer in case of power failure, and has very important significance in each maintenance of the transformer. In the traditional test method, only after one phase winding is tested, the test wire is connected to the other phase winding in an inverted mode, and then the phase winding is tested, so that the labor intensity of testers is increased, and the test time is prolonged. The traditional test instrument is large and heavy, and needs cooperation of a plurality of people to complete the test, so that the efficiency is low.

The retrieval application number 201921144877.2 discloses a dustproof handheld resistance tester which is good in dustproof effect, simple in structure and capable of improving use reliability; including the resistance tester body, lateral wall upper portion is provided with the display screen before the resistance tester body, and lateral wall middle part is provided with two sets of buttons before the resistance tester body, and lateral wall lower part is provided with the knob before the resistance tester body, and resistance tester body right side wall upper portion is provided with the recess, and the inside binding post of three groups that is provided with of recess.

However, the inventor finds that the technical scheme still has at least the following defects:

the resistance tester who sets up among this technical scheme only sets up a handle, when operating personnel actual operation, need hold the tester all the time, leads to operating personnel to operate with a hand, and is inefficient, and it is poor to look sideways at the effect, wastes time and energy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hand-held type direct current resistance tester has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the handheld direct-current resistance tester comprises a tester shell, wherein the upper part and the lower part of the right side of the tester shell are movably hinged with the left side of a protective cover through hinges, rectangular notches are formed in the middle positions of the bottoms of the tester shell and the protective cover, a lifting hole is formed in the lower left corner of the tester shell, and a spring-type lifting rope is fixedly connected to the lifting hole; a handle is fixedly arranged on the left side of the tester shell;

the tester shell is characterized in that a display screen is fixedly embedded in the upper portion of the front side of the tester shell, a clamping plate is movably hinged to a rectangular opening in the bottom of the tester shell through a pin shaft, and a circular groove is formed in the bottom surface of the left end of the clamping plate vertically and downwards.

As an optimal implementation manner of the present invention, the arc opening has been opened at the lower right corner of the protective cover, and the arc opening is disposed about the hinge and the hanging hole in a symmetrical distribution manner.

As an embodiment of the utility model, be located the vertical upwards screw thread of circular slot is twisted and is run through there is the butterfly bolt, is located the rectangle opening middle part level of tester casing outwards offers the bolt hole with the butterfly bolt adaptation.

As an optimal implementation mode of the utility model, be located the fixed embedding of tester casing bottom intermediate position has the magnetic path, is located the fixed embedding of intermediate position has the iron plate with the vertical alignment of magnetic path above the splint.

As an optimal implementation mode of the utility model, be located the tooth's socket that a plurality of equidistance distribute is vertically seted up to the inboard level of splint, splint are PEEK plastics plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses during the use operating personnel can take the removal with the tester casing through the handle, during actual operation, operating personnel is direct with the vertical downwards of splint upset, and rotatory butterfly bolt carries out fixed connection with the intraoral bolt hole of rectangle opening of tester casing, thereby reach stable measure, then personnel peg graft splint on operating personnel's waistband, just so can make things convenient for operating personnel to liberate both hands and continue the operation, convenient and fast, and time saving and labor saving improves test effect and efficiency.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a front view of the hand-held dc resistance tester of the present invention;

fig. 2 is a schematic side view of the distribution positions of the clamp plate and the tester casing of the hand-held direct current resistance tester of the present invention;

fig. 3 is the utility model discloses vertical decurrent schematic structure of splint upset of hand-held type direct current resistance tester.

In the figure: 1. a tester housing; 2. a handle; 3. hoisting holes; 4. a spring-type lifting rope; 5. a rectangular opening; 6. An arc-shaped opening; 7. a hinge; 8. a protective cover; 9. a display screen; 10. bolt holes; 11. a magnetic block; 12. a tooth socket; 13. a splint; 14. an iron block; 15. a pin shaft; 16. a circular groove; 17. butterfly bolt.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following 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.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the utility model discloses in provide only supply the reference with the model of electrical apparatus. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

Referring to fig. 1-3, the present invention provides a technical solution: the hand-held direct current resistance tester comprises a tester shell 1, wherein the upper part and the lower part of the right side of the tester shell 1 are movably hinged with the left side of a protective cover 8 through hinges 7, rectangular notches 5 are formed in the middle positions of the bottoms of the tester shell 1 and the protective cover 8, a lifting hole 3 is formed in the lower left corner of the tester shell 1, and a spring-type lifting rope 4 is fixedly connected to the lifting hole 3; a handle 2 is fixedly arranged on the left side of the tester shell 1;

a display screen 9 is fixedly embedded in the upper part of the front side of the tester shell 1, a clamping plate 13 is movably hinged at the rectangular opening 5 at the bottom of the tester shell 1 through a pin shaft 15, and a circular groove 16 is vertically and downwards formed in the bottom surface of the left end of the clamping plate 13; specifically, the method comprises the following steps: during the use operating personnel can take tester casing 1 through handle 2 and remove, during the in-service operation, operating personnel directly overturns splint 13 vertically downwards, and rotatory butterfly bolt 17 carries out fixed connection with bolt hole 10 in tester casing 1's the rectangle opening 5, thereby reach stable measure, then personnel peg graft splint 13 on operating personnel's waistband, just so can make things convenient for operating personnel to liberate both hands and continue the operation, and is convenient and fast, time saving and labor saving, and the test effect and efficiency are improved.

In this embodiment (as shown in fig. 1), an arc-shaped opening 6 is formed in the lower right corner of the protective cover 8, and the arc-shaped opening 6 is symmetrically distributed with respect to the hinge 7 and the lifting hole 3, so that when the protective cover 8 is covered, the arc-shaped opening 6 does not affect the connection of the spring-type lifting rope 4 in the lifting hole 3.

In this embodiment (see fig. 2), a butterfly bolt 17 is screwed vertically upward in the circular groove 16, and a bolt hole 10 adapted to the butterfly bolt 17 is horizontally and outwardly formed in the middle of the rectangular opening 5 of the tester case 1.

In this embodiment (as shown in fig. 2), a magnetic block 11 is fixedly embedded in the middle of the bottom of the tester case 1, an iron block 14 vertically aligned with the magnetic block 11 is fixedly embedded in the middle of the upper surface of the clamping plate 13, and the magnetic block 11 and the iron block 14 on the clamping plate 13 are matched and adsorbed to achieve a stable effect.

In this embodiment (please refer to fig. 2 and 3), a plurality of tooth sockets 12 are horizontally and longitudinally disposed on the inner side of the clamping plate 13 at equal intervals, the clamping plate 13 is a PEEK plastic plate, and the tooth sockets 12 can achieve the effect of clamping and anti-skid.

It should be noted that, the utility model discloses a hand-held type direct current resistance tester, each is the parts that general standard component or skilled person in the art know, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

The working principle is as follows: during the use operating personnel can take tester casing 1 through handle 2 and remove, during the in-service operation, operating personnel directly overturns splint 13 vertically downwards, and rotatory butterfly bolt 17 carries out fixed connection with bolt hole 10 in tester casing 1's the rectangle opening 5, thereby reach stable measure, then personnel peg graft splint 13 on operating personnel's waistband, just so can make things convenient for operating personnel to liberate both hands and continue the operation, and is convenient and fast, time saving and labor saving, and the test effect and efficiency are improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Hand-held type direct current resistance tester, its characterized in that: the tester comprises a tester shell (1), wherein the upper part and the lower part of the right side of the tester shell (1) are movably hinged with the left side of a protective cover (8) through hinges (7), rectangular notches (5) are formed in the middle positions of the bottoms of the tester shell (1) and the protective cover (8), a lifting hole (3) is formed in the lower left corner of the tester shell (1), and a spring-type lifting rope (4) is fixedly connected to the lifting hole (3); a handle (2) is fixedly arranged on the left side of the tester shell (1);

the tester is characterized in that a display screen (9) is fixedly embedded in the upper portion of the front side of the tester shell (1), a clamping plate (13) is movably hinged to a rectangular opening (5) in the bottom of the tester shell (1) through a pin shaft (15), and a circular groove (16) is vertically formed in the bottom face of the left end of the clamping plate (13) downwards.

2. The hand-held dc resistance tester of claim 1, wherein: an arc-shaped opening (6) is formed in the lower right corner of the protective cover (8), and the arc-shaped opening (6) is symmetrically distributed and arranged relative to the hinge (7) and the lifting hole (3).

3. The hand-held dc resistance tester of claim 1, wherein: and a butterfly bolt (17) penetrates through the circular groove (16) in a vertically upward threaded manner, and a bolt hole (10) matched with the butterfly bolt (17) is horizontally and outwards arranged in the middle of the rectangular opening (5) of the tester shell (1).

4. The hand-held dc resistance tester of claim 1, wherein: a magnetic block (11) is fixedly embedded in the middle of the bottom of the tester shell (1), and an iron block (14) vertically aligned with the magnetic block (11) is fixedly embedded in the middle of the upper surface of the clamping plate (13).

5. The hand-held dc resistance tester of claim 1, wherein: the horizontal inner side of the clamping plate (13) is longitudinally provided with a plurality of tooth grooves (12) which are distributed at equal intervals, and the clamping plate (13) is a PEEK plastic plate.