CN211426664U

CN211426664U - Current type relay protection tester

Info

Publication number: CN211426664U
Application number: CN201922053347.3U
Authority: CN
Inventors: 卢迪勇; 刘阳阳; 万敏; 杨伟涛
Original assignee: Guangdong Power Grid Co Ltd; Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-09-04
Anticipated expiration: 2029-11-25

Abstract

The utility model provides a current type relay protection tester, which solves the problem that dust is easy to fall into a display screen and a test socket when the current type relay protection tester is not used, and the test effect can be influenced; the protection mechanism comprises a shell, a coil spring, protection cloth and a cloth outlet, wherein the shell is arranged at the top end of the front end face. The utility model provides a current type relay protection tester novel structure conceives ingeniously, can protect display screen and experimental electric wire socket on the tester body, when avoiding not using, falls into the dust in display screen and the electric wire socket, the proof test effect.

Description

Current type relay protection tester

Technical Field

The utility model relates to a tester specifically is a current type relay protection tester.

Background

The power system measures the current of the power equipment operation by the protection measurement and control device, and judges whether the power equipment is in a normal operation state or not through the change of the current. After the protection measurement and control device operates for a certain period, power failure is needed to check whether the function of the protection measurement and control device is intact, a worker is needed to input current to the protection measurement and control device by a relay protection tester, and whether the collected current is accurate or not and whether the signal is correctly sent or the tripping operation can be started or not when the current is overlarge are detected.

At present, a full-function relay protection tester is generally used for regular inspection and verification of a protection measurement and control device in the power industry, the output current is 0-30A, the output voltage reaches 0-125V, the weight reaches 24kg, and a movable wire coil is required to be used as a working power supply. The verification of the 10kV protection measurement and control devices of the transformer substation adopts a current verification logic function, the logic current fixed values of the verified devices are mostly in the range of 0-4A, the 0-4A current fixed values account for about 95% of all the fixed values, and the number of the 10kV protection measurement and control devices accounts for about 80% of the total station protection measurement and control devices.

Current current type relay protection tester is when not using, easily falls into the dust in display screen and the experimental socket, may influence experimental effect, is unfavorable for using.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a current type is protected tester again, the effectual current type of having solved protects tester again when not using, easily falls into the dust in display screen and the experimental socket, may influence experimental effect, is unfavorable for the problem of using.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a current type relay protection tester, which comprises a tester body, wherein the front end of the tester body is provided with a front end face, the middle part of the bottom end of the front end face is provided with a first groove, the middle part of the first groove is provided with a first threaded hole, both sides of the front end face are provided with side frames, the side frames are internally provided with chutes, the middle part of the tester body is provided with a support, a display screen and a protection mechanism;

protection machanism includes the casing, the lug, the connecting block, the slider, the second recess, the fixture block, the second screw hole, an inner chamber, the wind spring, protection cloth and a cloth outlet, the top of terminal surface before the casing sets up, the bottom of casing is provided with the lug, one side of lug is provided with the connecting block, the both sides of lug all are provided with the slider, the second recess has been seted up at the middle part of connecting block, the middle part of lug bottom is provided with the fixture block, the second screw hole has been seted up at the middle part of fixture block, the inner chamber has been seted up to the inside of casing, the mid-mounting of casing has the wind spring, around there.

Preferably, the bracket is connected with the tester body through a rotating shaft.

Preferably, the sliding block is slidably connected in the sliding groove.

Preferably, the protective cloth is attached in the second groove through strong glue.

Preferably, the middle part of the top end of the support is sleeved with a rubber tube.

Preferably, the surface of the tester body is plated with an anti-corrosion paint layer.

The working principle is as follows: the utility model discloses when not using after experimental completion, the user pushes down the lug, the protection cloth on the connecting block is fixed in the lug pulling, the pulling force of wind spring is overcome to the protection cloth, pull out the protection cloth on the wind spring, make the fixture block joint in first recess, and peg graft fixing bolt and can accomplish fixedly in first screw hole and second screw hole, the protection cloth that sets up this moment can protect the experimental jack of display screen and display screen one side, it influences experimental result to prevent to get into the dust in display screen and the experimental jack, when experimental appearance body uses, unscrew the fixing bolt in first screw hole and the second screw hole, upwards promote through the lug, protection cloth is under the effect of wind spring power, get up the rolling of protection cloth, can test this moment.

Has the advantages that: the utility model discloses novel structure thinks about ingeniously, can protect display screen and experimental electric wire socket on the tester body, when avoiding not using, falls into the dust in display screen and the electric wire socket, guarantees experimental effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

fig. 2 is a schematic diagram of a three-dimensional structure of the bump of the present invention;

FIG. 3 is a schematic view of the internal structure of the housing of the present invention;

reference numbers in the figures: 1. a tester body; 2. a front end face; 3. a first groove; 4. a first threaded hole; 5. A side frame; 6. a chute; 7. a support; 8. a rubber cylinder; 9. a display screen; 10. a protection mechanism; 11. a housing; 12. a bump; 13. connecting blocks; 14. a slider; 15. a second groove; 16. a clamping block; 17. a second threaded hole; 18. an inner cavity; 19. a coil spring; 20. protective cloth; 20. a cloth outlet.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-3.

Embodiment one, is given by fig. 1-3, the utility model provides a current type relay protection tester, including tester body 1, preceding terminal surface 2, first recess 3, first screw hole 4, side frame 5, spout 6, support 7, rubber tube 8, display screen 9, protection mechanism 10, casing 11, lug 12, connecting block 13, slider 14, second recess 15, fixture block 16, second screw hole 17, inner chamber 18, coil spring 19, protection cloth 20 and cloth outlet 21, the front end of tester body 1 is provided with preceding terminal surface 2, the middle part of preceding terminal surface 2 bottom is seted up first recess 3, the middle part of first recess 3 is seted up first screw hole 4, the both sides of preceding terminal surface 2 all are provided with side frame 5, the spout 6 has been seted up in the side frame 5, the middle part of tester body 1 is installed support 7, display screen 9, be provided with protection mechanism 10 on preceding terminal surface 2;

protection machanism 10 includes casing 11, lug 12, connecting block 13, slider 14, second recess 15, fixture block 16, second screw hole 17, inner chamber 18, coil spring 19, protection cloth 20 and play cloth mouth 21, casing 11 sets up the top of terminal surface 2 in the front, casing 11's bottom is provided with lug 12, one side of lug 12 is provided with connecting block 13, lug 12's both sides all are provided with slider 14, second recess 15 has been seted up at connecting block 13's middle part, the middle part of lug 12 bottom is provided with fixture block 16, second screw hole 17 has been seted up at fixture block 16's middle part, inner chamber 18 has been seted up to casing 11's inside, casing 11's mid-mounting has coil spring 19, around protection cloth 20 on the coil spring 19, play cloth mouth 21 has been seted up to casing 11.

The support 7 is connected with the tester body 1 through a rotating shaft, and is convenient to install and use.

The sliding block 14 is connected in the sliding groove 6 in a sliding way, so that the sliding block is convenient to use in a matching way.

The protective cloth 20 is adhered in the second groove 15 through strong glue, so that the installation and the use are convenient.

The middle part on the top end of the support 7 is sleeved with the rubber tube 8, so that the use comfort is improved.

The surface of the tester body 1 is plated with an anticorrosive paint layer, so that the anticorrosive performance of the tester body 1 is improved.

The working principle is as follows: the utility model discloses when not using after experimental completion, the user pushes down lug 12, the protection cloth 20 on connecting block 13 is fixed in the pulling of lug 12, protection cloth 20 overcomes wind spring 19's pulling force, pull out protection cloth 20 on the wind spring 19, make 16 joints of fixture block in first recess 3, and peg graft fixing bolt and can accomplish fixedly in first screw hole 4 and second screw hole 17, the protection cloth 20 that sets up this moment can protect the experimental jack of display screen 9 and display screen 9 one side, prevent to get into dust influence test result in display screen and the experimental jack, when tester body 1 uses, unscrew the fixing bolt in first screw hole 4 and the second screw hole 17, upwards promote through lug 12, protection cloth 20 is under the effect of wind spring 19 power, get up protection cloth 20 rolling, can test this moment.

Has the advantages that: the utility model discloses novel structure thinks about ingeniously, can protect display screen and experimental electric wire socket on the tester body 1, when avoiding not using, falls into the dust in display screen and the electric wire socket, guarantees experimental effect.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a current type relay protection tester, includes tester body (1), its characterized in that: the front end of the tester body (1) is provided with a front end face (2), the middle of the bottom end of the front end face (2) is provided with a first groove (3), the middle of the first groove (3) is provided with a first threaded hole (4), two sides of the front end face (2) are respectively provided with a side frame (5), a sliding groove (6) is formed in the side frame (5), the middle of the tester body (1) is provided with a support (7), a display screen (9) is arranged, and the front end face (2) is provided with a protection mechanism (10);

the protection mechanism (10) comprises a shell (11), a convex block (12), a connecting block (13), a sliding block (14), a second groove (15), a clamping block (16), a second threaded hole (17), an inner cavity (18), a coil spring (19), protection cloth (20) and a cloth outlet (21), wherein the shell (11) is arranged at the top end of the front end surface (2), the convex block (12) is arranged at the bottom of the shell (11), the connecting block (13) is arranged on one side of the convex block (12), the sliding block (14) is arranged on two sides of the convex block (12), the second groove (15) is formed in the middle of the connecting block (13), the clamping block (16) is arranged in the middle of the bottom end of the convex block (12), the second threaded hole (17) is formed in the middle of the clamping block (16), the inner cavity (18) is formed in the shell (11), the coil spring (19) is arranged in the middle, the bottom of the shell (11) is provided with a cloth outlet (21).

2. An amperometric relay protection tester according to claim 1, wherein the support (7) is connected to the tester body (1) by a rotating shaft.

3. An amperometric relay protection tester according to claim 1, wherein the slide (14) is slidably connected within the chute (6).

4. An amperometric relay protection tester according to claim 1, wherein the protective cloth (20) is affixed in the second recess (15) by means of a strong glue.

5. An electric current type relay protection tester according to claim 1, characterized in that a rubber tube (8) is sleeved in the middle of the top end of the support (7).

6. An amperometric relay protection tester according to claim 1, wherein the surface of the tester body (1) is coated with a layer of anti-corrosive paint.